STATISTICAL SUMMARY OF THE CHEMICAL QUALITY ...THE GREEN RIVER COAL REGION, WYOMING By David A....

STATISTICAL SUMMARY OF THE CHEMICAL QUALITY OF SURFACE WATER

IN THE POWDER RIVER COAL BASIN, THE HANNA COAL FIELD, AND

THE GREEN RIVER COAL REGION, WYOMING

By David A. Peterson

U.S. GEOLOGICAL SURVEY

Water-Resources Investigations Report 84-4092

Cheyenne, Wyoming

1988

DEPARTMENT OF THE INTERIOR

DONALD PAUL HODEL, Secretary

UNITED STATES GEOLOGICAL SURVEY

Dallas L. Peck, Director

For additional information write to:

District Chief U.S. Geological Survey 2120 Capitol Avenue P.O. Box 1125 Cheyenne, WY 82003

Copies of this report can be purchased from:

U.S. Geological SurveyBooks and Open-File Reports SectionFederal Center, Bldg. 810Box 25425Denver, CO 80225-0425

CONTENTS

Page--------------------------------------------- ------------------ 1

Introduction---------------------- ------------------------------------- iPurpose and scope--------------------------------------------------- 3Description of study area------------------------------------------- 3

Landscape and climate------------------------------------------ 3Stream types------------------------------- ------------------ 3

Previous studies---------------------------------------------------- 4Methods of data analysis--------------------- -------------------------- 4

Data distribution--------------------------------------------------- 5Descriptive statistics-------------------------- ------------------ 5Regression analyses------------------------------------------------- 5

Prediction of constituent values--------- ------------------------------ 7Statistical summary------------------------------------------------------ 7

Station location and numbering system------ ------------ _________ 7Powder River coal basin------ ------------------------------------- 7

Tongue River drainage---------------------------------------- 8Powder River drainage------------ ---------------------------- 9Little Powder River drainage--------------- ------------------ 12Cheyenne River drainage---------------------------------------- 12Belle Fourche River drainage------------------------ --------- 14North Platte River drainage---------------- ------------------ 16

Hanna coal field---------------------------------------------------- 16Green River coal region--------------------------------------------- 18

Green River main stem and upstream tributaries----------- ---- 18Big Sandy River drainage--------------------------------------- 20Bitter Creek and Vermillion Creek drainages-------------------- 21Blacks Fork and Henrys Fork drainages------------------------ 22Great Divide drainage basin------------------------------------ 24Little Snake River drainage---------------- ---------------- 24

Need for future sampling programs---------------------------------------- 24Summary------------------------------------------------------------------ 24Selected references--------------- ------------------------------------- 25Supplemental data----------------- ---------------- ___-__-_______-__-_ 27

PLATE

Plate 1. Map showing dissolved-solids concentrations and proportions of major ions in streams in and near the Powder River coal basin, the Hanna coal field, and the Green River coal region, Wyoming----------------------------------- In pocket

FIGURES

Page Figure 1. Map showing principal areas of coal production in Wyoming----- 2

111

Figures 2-11 Graphs showing mean dissolved-solids concentrations and median instantaneous streamflow values at stations in the:

2.3.4.5.6.7.8.9.

10.11.

Tongue River drainage ------- --._______----.Powder River drainage--------------------------Little Powder River drainage-------------------Cheyenne River drainage------------------ --- Belle Fourche River drainage----------- ------Hanna coal field- ----------------------------Green River main stem and upstream tributaries- Big Sandy River drainage-------------- -------Bitter Creek and Vermillion Creek drainages----Blacks Fork and Henrys Fork drainages---- ---

Page

9111313151719202123

TABLES

Table 1. Statistical summaries of water-quality data from the PowderRiver coal basin, based on samples collected from October 1, 1974, to September 30, 1981

2. Statistical summaries of water-quality data from the Hanna coal field, based on samples collected from October 1, 1974, to September 30, 1981

3. Statistical summaries of water-quality data from the GreenRiver coal region, based on samples collected from October 1, 1974, to September 30, 1981 -

Page

28

67

71

CONVERSION FACTORS

For the use of readers who prefer to use metric units rather than the inch-pound terms used in this report, the following conversion factors may be used:

Multiply inch-pound unit

inchcubic foot per second (ft3/s)square mileton, short

By

25.400.028322.590.9072

To obtain metric unit

millimetercubic meter per secondsquare kilometermegagram

Temperature in degree Celsius (°C) can be converted to degree Fahrenheit (°F) as follows:

°F = 1.8 x °c + 32

IV

STATISTICAL SUMMARY OF THE CHEMICAL QUALITY OF SURFACE WATER IN THE POWDER RIVER COAL BASIN, THE HANNA COAL FIELD, AND THE

GREEN RIVER COAL REGION, WYOMING

By David A. Peterson

ABSTRACT

Sampling of the chemical quality of surface water in the three principal coal-producing areas of Wyoming was intensified by the U.S. Geological Survey during 1975-81, in response to interest spurred by a dramatic increase in surface mining of the areas. This statistical summary consists of descriptive statistics and regression analyses of data from 72 stations on streams in the Powder River coal basin, the Hanna coal field, and the Green River coal region of Wyoming. Constituents described include dissolved solids, major ions, nutrients, bacteria, trace elements, suspended sediment, turbidity, and other miscellaneous constituents.

The mean dissolved-solids concentrations in streams ranged from 15 to 4,800 milligrams per liter. Samples collected near mountainous areas or in the upstream reaches of perennial streams in the plains had the smallest concentrations of dissolved solids, and the predominant ions were calcium and bicarbonate. Samples from ephemeral, intermittent, and the downstream reaches of perennial streams in the plains contained relatively large dissolved-solids concentrations, and the predominant ions usually were sodium and sulfate. Regression models showed that the concentrations of dissolved solids, calcium, magnesium, sodium, alkalinity, sulfate, and chloride correlated well with specific-conductance values in many of the streams.

INTRODUCTION

The collection and analysis of hydrologic information in Wyoming was expanded greatly during 1975-81, in response to the sudden increase in the surface mining of coal. Funding for much of the intensified data-collection activity was provided by the U.S. Geological Survey Coal Hydrology Program and the U.S. Bureau of Land Management Energy Mineral Resource Inventory and Analysis (EMRIA) Program.

The data-collection efforts focused on the three principal coal-producing areas of Wyoming: the Powder River coal basin, the Hanna coal field, and the Green River coal region (fig. 1). Data from several stations located outside these areas are included in this report, because of the importance of the stations in evaluating the water quality of the areas.

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Wyoming coal production during 1981 from the Powder River coal basin was approximately 78 million short tons, from the Hanna coal field approximately 8 million short tons, and from the Green River coal region approximately 11 million short tons (Wyoming State Inspector of Mines, 1982). Locations of active or planned mines and their annual production rates are shown by Hausel and others (1979).

Purpose and Scope

The purpose of this report is twofold: (1) To summarize statistically the surface-water-quality data collected by the Geological Survey in the Powder River coal basin, the Hanna coal field, and the Green River coal region and, (2) to evaluate the adequacy of the water-quality data and to evaluate the need for future water-quality data-collection activities in the coal areas of Wyoming.

The statistical summary consists of descriptive statistics and regression analyses of data from samples collected at 72 stations. The samples were collected using methods described by Skougstad and others (1979), Greeson and others (1977), and Guy and Norman (1970). Brief overviews of water-quality conditions in each of the three coal areas also are included.

Description of Study Area

Landscape and Climate

A high-plains topography characterizes the study areas. The low, rolling hills are vegetated with sagebrush and grasses. Trees generally are absent, although cottonwoods grow along some stream channels, and evergreens sometimes grow on breaks and upland areas.

The average annual precipitation in the semiarid climate of the study areas is 5 to 20 inches. Spring and summer thunderstorms contribute much of the precipitation; winter and spring snowstorms provide the remainder of the precipitation.

Stream Types

Perennial, intermittent, and ephemeral streams are present throughout the study areas. The perennial streams flow year-round, in response to precipita tion runoff, snowmelt, and ground-water inflow. Many of the perennial streams in the study areas originate in nearby mountain ranges, and flows are sus tained by meltwater from the mountain snowpack. Some streams originating in the study areas (plains) are perennial for a short distance because they are sustained by perennial springs, but streamflow losses cause them to become intermittent or ephemeral. Streams originating in the study areas typically are intermittent or ephemeral. Intermittent streams receive ground-water inflow in addition to precipitation runoff, but usually cease flowing during part of the year. Ephemeral streams flow only in response to precipitation.

Previous Studies

Several investigators have studied surface-water quality in the Powder River Basin of Wyoming and Montana. Small concentrations of dissolved solids and predominance of calcium and bicarbonate in mountainous tributaries to the Powder River, and a relatively large dissolved-solids concentration and predominance of sodium and sulfate in the main stem of the Powder River were noted by Hembree and others (1952, p. 49-51). Predominance of sodium and sulfate during baseflow conditions in streams of the plains in the Montana part of the Powder River coal basin was noted by Knapton and Ferreira (1980, p. 11). Relatively large concentrations of dissolved solids and small concen trations of suspended sediment during baseflow conditions, compared to small dissolved-solids and large suspended-sediment concentrations during large flows were also noted by Hembree and others (1952, p. 24-51) and Knapton and Ferreira (1980, p. 7-9).

The water quality at stations in and near the Powder River and Hanna coal areas during 1968-75 was described by Rucker and Belong (1987) in their study of stations throughout Wyoming, excluding the Green River basin. A report listing surface- and ground-water-quality data from the Hanna area also is available (Freudenthal, 1979).

In recent years the water quality of streams in the Green River Basin in Wyoming has been studied as part of the Geological Survey's energy-related hydrologic investigations. Multivariable regression models of dissolved- solids concentrations and loads versus streamflow in several streams of the Green River basin during 1961-75 were described by Belong (1977); inclusion of a simple harmonic time function in the models to account for seasonal effects also is described. The flushing action of flow on accumulated salts in the seasonally dry channel of an intermittent stream in the Great Bivide basin was described by Larson and Zimmerman (1981, p. 34-38). Flushing of salts and organic debris in an intermittent stream in the Green River basin also was noted by Lowham and others (1982, p. 24-36).

METHOBS OF BATA ANALYSIS

The water-quality data used in this report are from samples collected during water years 1975-81 (October 1, 1974 to September 30, 1981). Water- quality samples collected before water year 1975 are not included in this study, in order to compare samples for a consistent period. The data have been published in annual reports (U.S. Geological Survey, 1976-82). The descriptive statistics and regression relations listed in tables 1, 2, and 3 (at the end of this report) were generated using computer programs developed by the SAS Institute, Inc. 1 (1982).

1 The use of brand names in this report is for identification purposes only and does not imply endorsement by the U.S. Geological Survey.

Several cations and anions are collectively referred to in this report as the major ions because they comprise a majority of the dissolved solids found in water. The major ions include the following: calcium, magnesium, sodium, alkalinity, sulfate, and chloride. Alkalinity is included as an anion because it represents the bicarbonate and carbonate ions. The streamflow values used throughout this report are the instantaneous values at the time of sampling.

Data Distribution

The data were found to be normally distributed, with the following excep tions: streamflow, suspended-sediment, turbidity, bacteria, and phytoplankton data tended to be lognormally distributed. These parameters are distinguished by large variations and potential for extreme values. The distribution was tested through interpretation of plots of data on probability paper, plots of regression residuals, and comparison of skewness values. Distribution of the sample data also was given a simplified test by comparing two measures of central tendency, the mean and the median. The mean was greatly different from the median in a lognormal distribution, but nearly equal in a normal distribution. For the purposes of discussion, the median is used as the measure of central tendency of the streamflow, suspended-sediment, turbidity, bacteria, and phytoplankton sample values. Use of the median, instead of the mean, decreases the effects of extreme values in choosing a representative value for the sample values.

Descriptive Statistics

The descriptive statistics, which are included in tables 1, 2, and 3, in the "Supplemental Data" section at the end of the report, provide an overview of the data from each station. The descriptive statistics consist of sample size, maximum, minimum, mean, standard deviation, median, and percentile values.

All descriptive statistics are listed when the sample size of the con stituent is 10 or greater. Only sample size, maximum, and minimum values are listed for constituents with sample size of one to nine. If samples were not analyzed for a constituent, that constituent is not listed for that station. The constituent pH is an exception to the above. The mean, standard devia tion, and regression statistics, which are arithmetic calculations, are not listed for pH. Arithmetic calculations involving pH values can be misleading because pH is a logarithmic function of the hydrogen-ion concentration.

Regression Analyses

The regression analyses, which are obtained from regression models, meas ure correlation between variables in the data sets. The regression analyses are included in tables 1, 2, and 3.

The regression analyses are not listed for constituents with a sample size less than 10. The sample size for a constituent in the regression analyses and the sample size for the same constituent in the descriptive statistics are listed separately in the tables, because the sample sizes may be unequal. Paired values of the constituent and the dependent variables are required to compute the regression models, but unpaired values are included in the descriptive statistics.

The regression models are based on a least squares line, which is described by an equation of the form:

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Y = a + bx (1)^

where Y = predicted value of dependent variable (constituent); a = the regression constant; b = the regression coefficient; x = the independent variable [specific conductance (K),

streamflow (Q), or the logarithm of streamflow (LOGQ)].

Each constituent was regressed against the three independent variables (three two-variable models); only the independent variable that explained the great est degree of variation in the constituent is included in this report. The logarithm of streamflow was included as an independent variable in addition to specific conductance and streamflow, because of the tendency for streamflow data to be lognormally distributed.

Values of the r 2 (coefficient of determination), significance probability of the F value, and the standard error of estimate are given to help the reader assess the fit of the data about the lines described by the regression equations. The r 2 value is the square of the correlation coefficient, which is a measure of the linear correlation between the dependent and independent variables. The r 2 values can range from 0.00 to 1.00. A value of 0.00 indicates no correlation; a value of 1.00 indicates perfect correlation. For example, an r 2 value of 0.80 indicates that 80 percent of the variation of the constituent can be explained by variation in the independent variable.

Values of the significance probability of F are based on an F-test where F equals the ratio of the regression mean square to the error mean square. Values of the significance probability range from 0.0001 to 0.8 in this report. A value of 0.05, for example, indicates a 5-percent probability of no valid relationship between the dependent and independent variables.

The standard error of estimate is the square root of the mean square error. The standard error of estimate represents the standard deviation of the sample values from the line described by the regression equation. The range of value of the standard error of estimate is not fixed; the value is expressed in the same units as the constituent. Readers may wish to consult Mendenhall (1979) or Riggs (1968) for more information on regression statistics.

The results of the regression models were evaluated through two arbitrar ily chosen criteria: an r 2 value larger than 0.50, and a significance proba bility of the F value smaller than 0.05. If the model met the criteria, all of the regression statistics are included in the tables. If the model did not meet the criteria, a decreased set of regression statistics (sample size, r 2 , and significance probability of the F value) is listed to give the reader some information about the constituent's relation to the independent variable.

Regression models of dissolved oxygen, biochemical oxygen demand, nitro gen compounds, phosphorus, flouride, silica, boron, bacteria, and phytoplankton versus the independent variables were computed, but are not listed in this report because they generally showed poor correlations. Multiple regressions, utilizing two or three independent variables concurrently were tested, but are not listed because they generally resulted in little improvement compared to the single independent-variable models.

PREDICTION OF CONSTITUENT VALUES

The regression equation can be used to predict values of a constituent, resulting in cost savings through a decreased or more efficient sampling schedule. Predictions are calculated by multiplying the regression coeffi cient by a user-chosen value of the independent variable, and adding the regression constant. The r 2 value, the significance probability of the F value, and the standard error of estimate help to define the reliability of the equation for predictive use, but other limitations also apply. Predic tions of constituent values near the smallest or largest values of the data set can be misleading; predictions are not accurate if they are calculated for values outside the range of the data set. Predictions made from regression models based on a small number of samples may be particularly susceptible to error, because a small number of samples may not be typical of the long-term condition.

STATISTICAL SUMMARY

Station Location and Numbering System

The location of the stations where samples were collected is shown on plate 1. Each station is identified by an eight-digit station identification number, assigned by the U.S. Geological Survey to surface-water stations, in downstream order. The first two of the eight digits indicate the major drainage basin in which the site is located. For example, the Missouri River drainage basin is 06. The remaining six digits indicate position within the basin; the numbers are progressively larger in the downstream direction.

Powder River Coal Basin

A change in the proportions of ions in the downstream direction was noted in many streams in the Powder River coal basin. Calcium and bicarbonate comprise a large proportion of the total milliequivalents per liter in the upstream reaches of the streams, whereas sodium and sulfate comprise a large

proportion in the downstream reaches (pi. 1). This trend, as well as an increase in the dissolved-solids concentration in the downstream direction in streams draining the Bighorn Mountains, is described in more detail in the following sections. Changes in water quality in the downstream direction are due in part to increased availability of fine particles for transport and dissolution, and irrigation practices.

The descriptive statistics and regression analyses of data from 33 sta tions in the Powder River coal basin are listed in table 1. The relative con centration of dissolved solids and proportion by milliequivalents of calcium, magnesium, sodium plus potassium, bicarbonate, sulfate, and chloride at each station are shown on plate 1.

Tongue River Drainage

Water-quality data from three stations on the main stem of the Tongue River and two stations on tributaries are included in table 1. Perennial streamflow at these stations is derived from snowmelt in the Bighorn Mountains.

Dissolved-solids concentrations in the Tongue River drainage are some of the smallest concentrations in the Powder River coal basin (pi. 1). An increase in the mean dissolved-solids concentration in the downstream direc tion from station 06298000 to station 06306300 in the Tongue River is shown in figure 2. The median instantaneous streamflow in the Tongue River also increased in the downstream direction (fig. 2).

The predominant ions were calcium and bicarbonate in the Tongue River at stations 06298000, 06299980, and 06306300, and in Goose Creek at station 06305500. The proportions of sulfate and sodium by milliequivalents increased in the downstream direction in the Tongue River, but were not predominant. The sodium-adsorption ratio in the water of the Tongue River increased from a mean value of 0.19 at station 06298000 to a mean value of 0.80 at station 06306300.

Goose Creek, the largest tributary to the Tongue River in the study area, had median streamflow of 96.0 ft 3 /s at station 06305500. The median fecal coliform bacteria count of 31,000 cols/100 mL (colonies per 100 milliliters of water) in Goose Creek at station 06305500 is assumed to be a result of muni cipal-sewage effluent discharged to Goose Creek. The phosphorus and organic nitrogen concentrations in Goose Creek at station 06305500 also were greater than at the stations on the Tongue River, probably due to the sewage effluent.

Suspended-sediment data are summarized for two stations in the Tongue River drainage; the median concentration was 22.0 mg/L (milligrams per liter) in Goose Creek at station 06305500 and 46.5 mg/L in the Tongue River at station 06306300. Turbidity values were small at stations in the Tongue River drainage, compared to median values from other drainages in the Powder River coal basin. The largest median turbidity value in the drainage was 10.0 NTU (nephelometric turbidity units), in the Tongue River at station 06306300.

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Regression equations relating specific conductance to streamflow or the logarithm of streamflow are presented for all stations in the Tongue River drainage. Regression equations relating dissolved solids and the major ions to specific conductance are presented for stations 06299980 and 06306300 on the Tongue River and 06305500 on Goose Creek.

Powder River Drainage

Streams in the Powder River drainage may be divided into two categories, mountains and plains, based on the dissolved-solids concentration and chemical composition of their waters. Streams in the mountain category have relatively small concentrations of dissolved solids, suspended sediment, and turbidity; the predominant cation was calcium and the predominant anion was either bicarbonate or sulfate. Streams in the plains category have relatively large concentrations of dissolved solids, suspended sediment, and turbidity; the predominant cation was sodium and the predominant anion is either sulfate or

chloride.

Streams in the mountain category are perennial streams originating in the Bighorn Mountains. The mean concentration of dissolved solids increased in the downstream direction in Clear Creek, from 541 mg/L at station 06320200, to 712 mg/L at station 06320400, and to 826 mg/L at station 06324000 (fig. 3). Piney Creek, at station 06323500, near the headwaters, had a mean dissolved- solids concentration of 379 mg/L. Stations 06312500 on the Powder River and 06316400 on Crazy Woman Creek, which are not as near to their respective head waters as the station on Piney Creek, had mean dissolved-solids concentrations of about 1,000 mg/L.

Calcium was the predominant cation at the stations on streams in the mountain category. Sulfate was the predominant anion in these streams, with one exception. The milliequivalent concentrations of sulfate and bicarbonate were approximately equal in Piney Creek at station 06323500.

Suspended-sediment and turbidity concentrations are small in streams in the mountain category. The median suspended-sediment concentration increased in the downstream direction in Clear Creek from 14.0 mg/L at station 06320200 to 56.0 mg/L at station 06324000. Turbidity also increased in the downstream direction. The increases were at least partly due to increased availability of fine particulates for transport.

Regression equations relating specific conductance to the logarithm of streamflow are presented for each station in the mountain category, with the exception of station 06323500 on Piney Creek. Regression equations relating dissolved solids and the major ions to specific conductance are presented for all the stations.

The plains-stream category includes three stations on the main stem of the Powder River and two stations on tributaries. The mean dissolved-solids concentrations and median values of streamflow at the time of sampling at these stations are included in figure 3. The largest mean dissolved-solids concentrations of streams in the plains category were 2,929 mg/L in the South Fork Powder River at station 06313000 and 4,074 mg/L in Salt Creek at station 06313400. The latter was the largest concentration recorded in the Powder River coal basin. The dissolved-solids concentrations of the South Fork Powder River at station 06313000 and Salt Creek at station 06313400 are diluted by flow in the main stem of the Powder River. Consequently, the mean dissolved-solids concentration was 2,062 mg/L in the Powder River at station 06313500, which is downstream from the mouth of the two tributaries. The mean dissolved-solids concentration of the Powder River decreased from 1,968 mg/L at station 06317000 to 1,422 mg/L at station 06324500, because of dilution by tributaries.

Sodium was the predominant cation at stations in the plains category. Sulfate was the predominant anion in the streams, with one exception. The predominant anion in Salt Creek at station 06313400 was chloride, possibly due to pumpage of oilfield brines into Salt Creek or its tributaries. The mean chloride concentration is 1,133 mg/L in Salt Creek at station 06313400. Con sequently, the presence of chloride as a large but not predominant proportion of the anions in the Powder River at station 06313500 is a result of the chloride concentrations from Salt Creek. The chloride concentrations farther downstream on the main stem of the Powder River at stations 06317000 and

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06324500 still reflected the chloride concentrations from Salt Creek, but the concentrations were smaller, because of dilution by tributaries. The decreas ing proportions of chloride in the downstream direction along the Powder River can be seen on plate 1.

Of the streams in the plains category, the largest median suspended- sediment concentration was 6,050 mg/L, and the largest median turbidity value was 500 NTU, both recorded in the Powder River at station 06317000. The smallest median suspended-sediment concentration was 715 mg/L, in Salt Creek at station 06313400, whereas the smallest median turbidity value was 60 NTU, in the South Fork Powder River at station 06313000.

Regression equations relating specific conductance to streamflow are pre sented for two of the five stations in the plains category, stations 06313500 and 06317000 on the Powder River. Regression equations relating dissolved solids and some of the major ions to specific conductance are listed for all five stations.

Little Powder River Drainage

Water-quality data from three stations along the Little Powder River are included in the summary. Streamflow is intermittent at the stations. The mean dissolved-solids concentrations of 2,370 mg/L in the water at the upstream station (06324890) and 2,330 mg/L at the intermediate station (06324925) were slightly greater than the mean concentration of 2,150 mg/L at the station farthest downstream (06324970). The decrease in dissolved solids in the downstream direction may have been related to a corresponding increase in the quantity of streamflow (fig. 4). The predominant cation in the Little Powder River was calcium at station 06324890 and sodium at stations 06324925 and 06324970; the predominant anion was sulfate at all three stations. The median suspended-sediment concentration at the three stations ranged from 48.5 to 166 mg/L.

Regression equations, relating specific conductance to streamflow, and relating dissolved solids and most of the major ions to specific conductance, from the stations on the Little Powder River are included in table 1.

Cheyenne River Drainage

Many of the streams of the Cheyenne River drainage are ephemeral or intermittent. Zero-flow conditions were recorded on at least one sampling date at six of the seven stations in this drainage.

The mean dissolved-solids concentrations in streams of the Cheyenne River drainage, shown in figure 5, ranged from 1,380 to 2,540 mg/L. The largest mean dissolved-solids concentrations were recorded at the two stations far thest downstream. Calcium was the predominant cation in the water of Antelope Creek at station 06364700, the Dry Fork Cheyenne River at station 06365300, and the main stem of the Cheyenne River at station 06365900. Sodium was the predominant cation in Little Thunder Creek at station 06375600, Lodgepole Creek at station 06378300, Lance Creek at station 06386000, and the Cheyenne

12

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values at stations in the Little Powder River drainage.

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13

River at station 06386500. The increase in the proportion of sodium with increasing distance from the headwaters was similar to the pattern observed in the Tongue River, Powder River, and Little Powder River drainages (pi. 1). Sulfate was the predominant anion at all stations in the Cheyenne River drain age. A downstream trend in the proportion of sulfate to the other anions was not noted in this drainage area.

The median suspended-sediment concentrations in the streams of the Cheyenne River drainage ranged from 56 to 148 mg/L. The turbidity data were insufficient for comparison. The largest mean water temperature recorded in the drainage area was 14.9°C in the Cheyenne River at station 06386500, whereas the largest maximum water temperature was 35.0°C, in Lance Creek at station 06386000.

Regression equations relating specific conductance to streamflow are pre sented for two of the seven stations in the drainage area. The poor correla tion shown between the two variables may have been due in part to the small volume of streamflow at these stations. Regression equations relating dis solved solids and most or all of the major ions to specific conductance are presented for five of the seven stations.

Belle Fourche River Drainage

Water-quality data from three stations on the main stem of the Belle Fourche River, and two stations on tributaries are included in table 1. The streams are ephemeral or intermittent at all five stations.

The mean dissolved-solids concentrations and median streamflow values recorded at stations in the Belle Fourche River drainage are shown in figure 6. Stations 06425720 and 06425780 on the Belle Fourche River are a relatively short distance apart. The decrease in dissolved-solids concentra tions and small increase in streamflow between them may have been due to ground-water inflow, tributary inflow from Coal Creek, the rerouting of the channel around a coal surface mine or infrequent pumpage from the mine. The mean dissolved-solids concentration in the Belle Fourche River decreased to 1,760 mg/L at station 06426500. The decrease in dissolved-solids concentra tion and increase in streamflow in the downstream direction in the Belle Fourche River was similar to the pattern observed in the Powder and Little Powder Rivers.

The two tributaries, Caballo Creek (station 06425900) and Donkey Creek (station 06426400), might be expected to contain similar water-quality condi tions because their drainages are approximately the same size and adjacent to each other, but this was not the case, probably because of man's activities in the basin of Donkey Creek. Donkey Creek receives municipal sewage effluent from the city of Gillette (population 12,000), frequent pumpage from dewater- ing of a coal surface-mine pit, and water that flows through an oil-well field, all within a distance of less than 25 miles upstream from the sampling station. The mean dissolved-solids concentration in Caballo Creek at station 06425900 was 1,840 mg/L, compared to 2,890 mg/L in Donkey Creek at station 06426400. The fecal streptococci bacteria, phytoplankton, sodium, and chloride

14

concentrations were larger in Donkey Creek at station 06426400 than in unim- pacted streams in the area. Although the effects of Donkey Creek are diluted in the Belle Fourche River at station 06426500, downstream from their conflu-

chloride and phytoplankton concentrations were still relatively large.ence

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Figure 6.- -Mean dissolved-solids concentrations and median instantaneous streamflow values at stations in the Belle Fourche River

drainage.

The predominant cation was sodium in the Belle Fourche River at stations 06425720 and 06426500 and in Donkey Creek at station 06426400. The predomi nance of sodium in the Belle Fourche River at station 06426500 probably reflected the trend of an increasing proportion of sodium in the downstream direction, as noted in other drainages, plus the effect of inflow from Donkey Creek. Sodium and calcium were present in approximately equal proportions in the Belle Fourche River at station 06425780 and Caballo Creek at station 06425900. The predominant anion was sulfate at all five stations.

15

The median suspended-sediment concentration in the Belle Fourche River increased from 61.0 mg/L at station 06425720 to 173 mg/L at station 06426500. The median turbidity values in the Belle Fourche River also increased in the downstream direction, from 7.0 NTU at station 06425720, to 40.0 NTU at station 06426500. The largest mean water temperature in the drainage was 12.7°C in the Belle Fourche River at station 06425720.

Regression equations relating specific conductance to streamflow are not presented for any of the stations in the drainage. Equations relating the dissolved solids and major ions to specific conductance are presented for most stations.

North Platte River Drainage

Water-quality data from stations 06645000 and 06646800 on the North Platte River are included in table 1. Perennial flow in the North Platte River at these stations is maintained by releases from three large reservoirs upstream on the main stem. Most of the water stored in the reservoirs originates in the mountain ranges of Wyoming and Colorado, which are the headwaters of the North Platte River.

The mean dissolved-solids concentration in the North Platte River was 429 mg/L at station 06645000 and 458 mg/L at station 06646800. The predomi nant ions at the stations were calcium and sulfate.

The regression models of the data from station 06645000 on the North Platte River showed poor correlations between the constituents and the independent variables. These correlations may have been poor, partly due to water-quality changes as a result of the standing-water conditions and the pattern of releases from the reservoirs upstream. Regression models were not calculated for station 06646800 because of an insufficient number of specific- conductance values.

Hanna Coal Field

Statistical summaries of water-quality data from four stations in or near the Hanna coal field are listed in table 2. Big Ditch at station 06630300 and Hanna Draw at station 06634990 are ephemeral streams. The Medicine Bow River at station 06635000 is perennial. These three streams, as well as the other streams in the area of active coal mining, drain into either the North Platte River or Seminoe Reservoir. The North Platte River is a relatively large, perennial river that flows through the western edge of the coal field, into Seminoe Reservoir. Although station 06630000 on the North Platte River is located outside the Hanna coal field, it is included in the summary because of its proximity to the coal field.

The mean dissolved-solids concentrations in the ephemeral streams (Big Ditch at station 06630300 and Hanna Draw at station 06634990) were about 2,000 mg/L; the mean dissolved-solids concentrations in the perennial streams (Medicine Bow River at station 06635000 and the North Platte River at station 06630000) were less than 1,000 mg/L (fig. 7). The predominant cation was

16

sodium in Big Ditch at station 06630300, and calcium in the Medicine Bow River at station 06635000 and the North Platte River at station 06630000. Calcium and magnesium were co-dominant cations in Hanna Draw at station 06634990. Sulfate was the predominant anion at the stations, excepting the predominance of bicarbonate at station 06630000 on the North Platte River. Differences in the quality of water between the stations may have been due to such factors as differences in the stream origins, agricultural practices, or mine drainage.

The largest median suspended-sediment concentration from the four stations was 1,510 mg/L, in Big Ditch at station 06630300. The largest mean water temperature was 17.0°C, also in Big Ditch at station 06630300.

Regression equations relating specific conductance to streamflow are presented for three stations. Equations relating dissolved solids and most or all of the major ions to specific conductance are presented for all four stations.

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Figure 7. Mean dissolved-solids concentrations and median instantaneous streamflow values at stations in the Hanna coal field.

17

Green River Coal Region

Downstream trends in water quality in the Green River coal region include increasing dissolved-solids concentrations in the Green River and increasing proportions of sodium and sulfate in the Blacks Fork drainage. Irrigation of crops is extensive along the upper reaches of the Green River and its upper tributaries, the Big Sandy River, the Hams Fork, the Blacks Fork, the Smiths Fork, and the Henrys Fork. Inflows of saline water from underlying aquifers affect the water quality of the Big Sandy River and the Bitter Creek drainage.

The descriptive and regression statistics of data from 35 stations in the Green River coal region are listed in table 3. The range of the mean dissolved-solids concentrations and the proportion of the major ions at each station are shown on plate 1.

Green River Main Stem and Upstream Tributaries

Seven stations on the main stem of the Green River and five stations on the upper tributaries of the Green River are considered in this section. The five upper tributaries are Pine Creek (station 09196500), East Fork River (station 09203000), New Fork River (station 09205000), La Barge Creek (station 09208000), and Fontenelle Creek (station 09210500). The streamflow is peren nial at all of these stations.

The mean dissolved-solids concentration generally increased in the downstream direction on the Green River, but did not exceed 500 mg/L (fig. 8). Inflow of relatively saline water from the Big Sandy River contributed to the increase in the dissolved-solids concentration between stations 09211200 and 09216300 on the Green River. The mean dissolved-solids concentrations in the upstream tributaries ranged from 15 to 218 mg/L.

The predominant cation in the water was calcium at all of the stations along the Green River and upper tributaries. The predominant anion was sulfate in the Green River at the uppermost station (09188500) and the three stations farthest downstream (09216300, 09217000, and 09217010). Bicarbonate was the predominant anion in the Green River at station 09192600, 09209400, and 09211200, and in the tributary streams.

Suspended-sediment and turbidity concentrations were small in the Green River and the upper tributaries. The largest median suspended-sediment concentration in water at 11 stations is 27.0 mg/L, in the Green River at station 09217000. The largest median turbidity of all 12 stations was 8.0 NTU, in the Green River at station 09217010.

Regression equations relating specific conductance to streamflow are presented for 5 of the 12 stations on the Green River main stem and upstream tributaries. Equations relating dissolved solids and some of the major ions to specific conductance are presented for most stations.

18

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Big Sandy River Drainage

Water-quality-data summaries from three stations on the Big Sandy River and one station on a tributary are included in table 3. Streamflow is peren nial at the stations. The mean dissolved-solids concentrations were small in the Big Sandy River at station 09213500 and the Little Sandy River at station 09214500, compared to the downstream reaches of the Big Sandy River at stations 09216000 and 09216050 (fig. 9). Return flows from an extensive area of crop irrigation enter the Big Sandy River between stations 09213500 and 09216000; Belong (1977) noted inflow of saline water from seeps between stations 09216000 and 09216050.

Calcium was the predominant cation in the Big Sandy River at station 09213500. Calcium and sodium comprised nearly equal proportions of the cation milliequivalents in the Little Sandy River at station 09214500. Sodium was the predominant cation in the Big Sandy River at stations 09216000 and 09216050. The predominant anion was bicarbonate in the Big Sandy River at station 09213500. Sulfate predominated in the Little Sandy River at station 09214500 and the Big Sandy River at stations 9216000 and 09216050. The seeps between stations 09216000 and 09216050 along the Big Sandy River contain large concentrations of sodium and sulfate (DeLong, 1977).

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20

Suspended-sediment and turbidity concentrations in the Big Sandy River drainage did not have a distinct pattern. A regression equation relating specific conductance to streamflow is presented for only one station of the four. Regression equations relating most or all of the major ions and dis solved solids to specific conductance- are presented for the four stations.

Bitter Creek and Vermillion Creek Drainages

Water-quality sampling stations in the Bitter Creek drainage include three stations on the main stem of Bitter Creek and four stations on tribu taries to Bitter Creek. Data from station 09235300 on Vermillion Creek also are mentioned in this section because the headwaters of Vermillion Creek are adjacent to the headwaters of the Bitter Creek drainage. Streams in the Bitter Creek drainage are intermittent or have small quantities of baseflow. The median values of streamflow at the time of sampling are shown in figure 10.

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21

The mean dissolved-solids concentrations were largest at the middle station of the three stations on Bitter Creek (fig. 10). The decrease in mean dissolved-solids concentration in Bitter Creek from 3,530 mg/L at station 09216562 to 2,076 mg/L at station 09216880 was largely due to dilution by Salt Wells Creek. The mean dissolved-solids concentration was 1,922 mg/L in Salt Wells Creek at station 09216750, near the mouth. The smallest mean dissolved- solids concentration in the Bitter Creek drainage was 618 mg/L in Gap Creek at station 09216576, whereas the largest was 5,763 mg/L in Killpecker Creek at station 09216810.

The predominant cation was sodium at seven of the nine stations in the Bitter Creek and Vermillion Creek drainages. The predominant cation was magnesium, in Salt Wells Creek at station 09216565 and Gap Creek at station 09216576. The predominant anion was sulfate at all nine stations. The mean chloride concentration in Killpecker Creek at station 09216880 was greater than 1,000 mg/L; the mean chloride concentrations were about 500 mg/L in Bitter Creek at stations 09216562 and 09216880. Inflow from flowing wells or seeps may contribute to the large chloride concentrations in Killpecker Creek and Bitter Creek. A water sample collected from a flowing well near Killpecker Creek contained a chloride concentration of 3,700 mg/L.

Suspended-sediment and turbidity concentrations in the Bitter Creek drainage did not have a distinct pattern. The largest median concentrations of these two constituents were in Salt Wells Creek at station 09216750. The large median fecal coliform bacteria count of 460,000 cols/100 mL in Bitter Creek at station 09216880 was a result of sewage effluent. Concentrations of nitrogen and phosphorus also were large at the same station. The largest mean water temperature in the two drainage areas was 11.1°C in Killpecker Creek at station 09216810.

Regression equations relating specific conductance to streamflow are not presented for any of the stations in the Bitter Creek and Vermillion Creek drainages. Equations relating dissolved solids and most or all of the major ions to specific conductance are presented in table 3.

Blacks Fork and Henrys Fork Drainages

Eight water-quality stations are located in the Blacks Fork drainage area and one on Henrys Fork. The streams are perennial at each station. The smallest mean dissolved-solids concentration in the Blacks Fork drainage was 65 mg/L, in the Blacks Fork at station 09218500; the largest mean concentra tion was 1,632 mg/L, also on the Blacks Fork, at station 09222000 (fig. 11). The decrease in the mean dissolved-solids concentration in the Blacks Fork to 1,164 mg/L at station 09224700 probably was due to dilution by tributaries. The Hams Fork at stations 09224050 and 09224450 contained a small mean dissolved-solids concentration, compared to Little Muddy Creek at station 09222300 and Muddy Creek at station 09222400.

An increase in the proportions of sodium and sulfate in the downstream direction in the Blacks Fork drainage is evident on plate 1. Calcium was the predominant cation in Blacks Fork at station 09218500, Hams Fork at stations 09224050 and 09224450, Little Muddy Creek at station 09222300, and Henrys Fork

22

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at station 09229500. Sodium was the predominant cation in the Smiths Fork at station 09221650, Blacks Fork at stations 09222000 and 09224700, and in Muddy Creek at station 09222400. Bicarbonate was the predominant anion in Blacks Fork at station 09218500 and Hams Fork at stations 09224050 and 09224450; it was a co-dominant, with sulfate, in Smiths Fork at station 09221650. Sulfate was the predominant anion at the other five stations in the Blacks Fork and Henrys Fork drainages.

Suspended-sediment and turbidity concentrations in the Blacks Fork and Henrys Fork drainages were smallest in the Blacks Fork at station 09218500 and in the Hams Fork at station 09224050. The Hams Fork at station 09224050 con tained larger concentrations of fecal coliform bacteria than other stations in the drainages; this probably was due to sewage effluent.

Regression equations are presented for seven of the nine stations in the Blacks Fork and Henrys Fork drainages, relating specific conductance to streamflow. Equations relating dissolved solids and most of the major ions to specific conductance also are presented.

23

Great Divide Drainage Basin

The Great Divide basin is unique because it drains internally to playas rather than to a larger drainage. Streams in the Great Divide basin are ephemeral or intermittent, with the exception of perennial springs in the headwaters. Water-quality data from station 09216527, on an intermittent reach of Separation Creek, are summarized. The median streamflow at this station was 1.05 ft 3/s, but there was no flow on at least 25 percent of the sample dates. The mean dissolved-solids concentration was 774 mg/L. Magne sium and sulfate were the predominant ions (pi. 1). The median suspended- sediment value was 212 mg/L and the median turbidity value was 50.0 NTU.

Dissolved-solids concentrations varying from less than 100 to more than 600 mg/L during snowmelt runoff in several ephemeral streams of the Great Divide basin were noted by H.W. Lowham (U.S. Geological Survey, written com- mun., 1982). Larson and Zimmerman (1981) reported a range of dissolved-solids concentrations from 60 to about 6,000 mg/L in several reaches of Separation Creek.

Regression equations relating the dissolved solids and major ions to spe cific conductance are presented, but an equation relating specific conductance to streamflow is not.

Little Snake River Drainage

The Little Snake River at station 09253000 is perennial; the streamflow is sustained by snowmelt from the Sierra Madre. The mean dissolved-solids concentration of 98 mg/L was small, compared to other streams of the Green River coal region. Calcium and bicarbonate were the predominant ions in the water. Regression equations relating specific conductance to streamflow, and dissolved solids and some of the major ions to specific conductance are included in table 3.

NEED FOR FUTURE SAMPLING PROGRAMS

The regression models showed poor correlation between specific conduct ance and discharge for many ephemeral and intermittent streams and some perennial streams. The patterns of specific conductance, dissolved solids, and the major-ion concentrations need to be studied in more detail, and significant variables affecting the patterns need to be identified. Better definition of the patterns in ephemeral and intermittent streams may be particularly difficult, because: (1) The temporary nature of flow in these streams hampers designing an effective sampling schedule, and (2) water- quality conditions can drastically change within a matter of hours. Sampling of ephemeral and intermittent streams, particularly at remote locations, may be aided through use of automated samplers.

SUMMARY

Water-quality data from 72 stations were summarized through descriptive statistics and regression analyses. A total of 33 stations were located in the Powder River coal basin, 4 stations were located in or near the Hanna coal field, and 35 stations were located in the Green River coal region. The sam ples were collected during water years 1975-81, from perennial, intermittent, and ephemeral streams.

24

Constituents for which descriptive statistics are presented include dissolved solids, major ions, nutrients, bacteria, trace elements, suspended sediment, turbidity, and other miscellaneous constituents. Constituents included in the regression analyses are dissolved solids, major ions, streamflow, the logarithm of streamflow, and specific conductance.

An increase in the mean concentration of dissolved solids in the down stream direction was noted in many streams of the Powder River coal basin and the Green River coal region. This downstream increase was noted in Clear Creek and in the Tongue, Cheyenne, North Platte, Green, and Big Sandy Rivers, which are all perennial streams originating in the mountains. The exception to this pattern occurred in the Powder River, because of the influence of Salt Creek and other tributaries. The downstream pattern of dissolved-solids concentrations varied in ephemeral or intermittent streams originating in the plains.

A change in the proportions of the ions in the downstream direction was noted in many of the perennial and intermittent streams. The proportions of sodium and sulfate, relative to calcium and bicarbonate, became larger in the downstream direction in the Tongue, Powder, Little Powder, Cheyenne, Belle Fourche, and Big Sandy Rivers.

SELECTED REFERENCES

Bahls, L.L., 1980, Salinity and the structure of benthic algae (periphyton) communities in streams of the southern Fort Union region, Montana: Helena, Mont., Montana Department of Health and Environmental Sciences, 35 p.

Bauer, D.P., Rathbun, R.E., and Lowham, H.W., Traveltime, unit-concentration, longitudinal-dispersion, and reaeration characteristics of upstream reaches of the Yampa and Little Snake Rivers, Colorado and Wyoming: U.S. Geological Survey Water-Resources Investigations 78-122, 66 p.

DeLong, L.L., 1977, An analysis of salinity in streams of the Green River basin, Wyoming: U.S. Geological Survey Water-Resources Investigations 77-103, 32 p.

Druse, S.A., Dodge, K.A., and Hotchkiss, W.R., 1981, Base flow and chemical quality of streams in the Northern Great Plains area, Montana and Wyoming, 1977-78: U.S. Geological Survey Water-Resources Investigations Open-File Report 81-692, 60 p.

Freudenthal, P.B., 1979, Water-quality data for the Hanna and Carbon basins, Wyoming: U.S. Geological Survey Open-File Report 79-1277, 41 p.

Glass, G.B., 1978, Wyoming coal fields, 1978: Laramie, Wyo., Geological Survey of Wyoming Public Information Circular No. 9, 91 p.

Greeson, P.E., Ehlke, T.A., Irwin, G.A., Lium, B.W., and Slack, K.V., 1977, Methods for collection and analysis of aquatic biological and microbio logical samples: U.S. Geological Survey Techniques of Water Resources Investigations, Book 5, Chapter A4, 332 p.

Guy, H.P., and Norman, V.W., 1970, Field methods of measurement of fluvial sediment: U.S. Geological Survey Techniques of Water Resources Investi gations, Book 3, Chapter C2, 59 p.

Hausel, W.D., Glass, G.B., Lageson, D.R., Ver Ploeg, A.J., and De Bruin, R.H., 1979, Wyoming mines and minerals, 1979: Laramie, Geological Survey of Wyoming map, 1 sheet, scale 1:500,000.

25

Hembree, C.H., Colby, B.R., Swenson, H.A., and Davis, J.R., 1952, Sedimenta tion and chemical quality of water in the Powder River drainage basin, Wyoming and Montana: U.S. Geological Survey Circular 170, 92 p.

Klarich, D.A., and Regele, S.M., 1980, Structure, general characteristics, and salinity relationships of benthic macroinvertebrate associations in streams draining the southern Fort Union coalfield region of southeastern Montana: Billings, Mont., Montana Department of Health and Environmental Sciences, 148 p.

Knapton, J.R., and Ferreira, R.F., 1980, Statistical analyses of surface- water-quality variables in the coal area of southeastern Montana: U.S. Geological Survey Water-Resources Investigations Report 80-40, 128 p.

Knapton, J.R., and McKinley, P.W., 1977, Water quality of selected streams in the coal area of southeastern Montana: U.S. Geological Survey Water- Resources Investigations 77-80, 145 p.

Larson, L.R., and Zimmerman, E.A., 1981, Water resources of Upper Separation Creek basin, south-central Wyoming: U.S. Geological Survey Water- Resources Investigations Report 80-85, 69 p.

Lowham, H.W., Belong, L.L. Collier, K.R., and Zimmerman, E.A., 1982, Hydrology of Salt Wells Creek -- A plains stream in southwestern Wyoming: U.S. Geological Survey Water-Resources Investigations 81-62, 52 p.

Mendenhall, William, 1979, Introduction to probability and statistics: North Scituate, Mass., Duxbury Press, 594 p.

Riggs, H.C., 1968, Some statistical tools in hydrology: U.S. Geological Survey Techniques of Water Resources Investigations, Book 4, Chapter Al, 39 p.

Ringen, B.H., Shown, L.M., Hadley, R.F., and Hinkley, T.K., 1979, Effect on sediment yield and water quality of a nonrehabilitated surface mine in north-central Wyoming: U.S. Geological Survey Water-Resources Investiga tions 79-47, 23 p.

Rucker, S.J., IV., and DeLong, L.L., 1987, Evaluation of selected water- quality stations in Wyoming: U.S. Geological Survey Water-Resources Investigations Report 82-4003, 72 p.

SAS Institute, Inc., 1982, SAS user's guide--Statistics--1982 edition: Gary, N.C., 584 p.

Skougstad, M.W., Fishman, M.J., Friedman, L.C., Erdmann, D.E., and Duncan, S.S., 1979, Methods for determination of inorganic substances in water and fluvial sediments: U.S. Geological Survey Techniques of Water Resources Investigations, Book 5, Chapter Al, 625 p.

U.S. Environmental Protection Agency, 1976, Quality criteria for water: Government Printing Office, U.S. Environmental Protection Agency Report, EPA-570/9-76-003, 159 p.

U.S. Geological Survey, 1976-82, Water resources data for Wyoming, water years 1975-81--volumes 1 and 2: U.S. Geological Survey Water-Data Reports WY-75-1, WY-76-1 to WY-81-1, and WY-76-2 to WY-81-2 (published annually).

Wangsness, D.J., 1977, Physical, chemical, and biological relations of four ponds in the Hidden Water Creek strip-mine area, Powder River basin, Wyoming: U.S. Geological Survey Water-Resources Investigations 77-72, 48 p.

Wyoming State Inspector of Mines, 1982, Annual report of the State Inspector of Mines of Wyoming: Rock Springs, Office of the State Inspector of Mines, 77 p.

26

SUPPLEMENTAL DATA

27

Table 1.--Statistical summaries of water-quality data from the Powder River coal basin, based on samples collected from October 1, 1974, to September 30, 1981

[Water-quality constituent:

Regression statistics:

Independent variable:

Values in milligrams per liter, except as indicated; DEC C, degrees Celsius;FT3/S, cubic feet per second; NTU, Nephelometric turbidity units; MICROSIEMENS, microsiemensper centimeter at 25 degrees Celsius; UG/L, micrograms per liter; UG/KG, micrograms perkilogram, COLS/100 ML, colonies per 100 milliliters of water. CELLS PER ML, cells permilliliter of water.*, value not included in table because coefficient of determination was less than 0.50,or significance of probability of the F-value was greater than 0.05, where F equals theratio of the regression mean square to the error mean square.K, specific-conductance value, in microsiemens per centimeter at 25 degrees Celsius;Q, instantaneous-streamflow value, in cubic feet per second; LOGQ, base 10 logarithm ofinstantaneous-streamflow value, in cubic feet per second]

STATION NUMBER: 06298000 STATION NAME AND LOCATION: TONGUE RIVER NEAR DAYTON, WYO.DRAINAGE AREA: 204 SQUARE MILES

DESCRIPTIVE STATISTICS

WATER QUALITY CONSTITUENT

TEMPERATURE (DEC C)STREAMFLOW, INSTANTANEOUS (FT3/S)TURBIDITY (NTU)SPECIFIC CONDUCTANCE (MICROSIEMENS)OXYGEN, DISSOLVEDOXYGEN DEMAND, BIOCHEMICAL, 5 DAYPH (UNITS)ALKALINITY (AS CAC03)NITROGEN, AMMONIA DISSOLVED (AS N)NITROGEN, AMMONIA TOTAL (AS N)NITROGEN, AMMONIA + ORGANIC TOTAL

(AS N)NITROGEN, N02+N03 TOTAL (AS N)NITROGEN, N02+N03 DISSOLVED (AS N)PHOSPHORUS, TOTAL (AS P)HARDNESS (AS CAC03)CALCIUM DISSOLVEDMAGNESIUM, DISSOLVEDSODIUM, DISSOLVEDSODIUM ADSORPTION RATIOPOTASSIUM, DISSOLVEDCHLORIDE, DISSOLVEDSULFATE DISSOLVEDFLUORIDE, DISSOLVEDSILICA, DISSOLVEDARSENIC, DISSOLVED (UG/L)BARIUM, DISSOLVED (UG/L)BORON, DISSOLVED (UG/L)CADMIUM DISSOLVED (UG/L)CHROMIUM, DISSOLVED (UG/L)COPPER, DISSOLVED (UG/L)IRON, DISSOLVED (UG/L)LEAD, DISSOLVED (UG/L)MANGANESE, DISSOLVED (UG/L)ZINC, DISSOLVED (UG/L)SELENIUM, DISSOLVED (UG/L)COLIFORM, FECAL, (COLS/ 100 ML)PHENOLS (UG/L)PHYTOPLANKTON, TOTAL (CELLS PER ML)SOLIDS, SUM OF CONSTITUENTS,

DISSOLVEDMERCURY DISSOLVED (UG/L)SEDIMENT, SUSPENDED

SAM PLE SIZE

83834775353675821

3737

372482828282828282818182811014

101013101310131324102680

131

MAXIMUM

18.002310.00

20.00360.0013.004.908.50

172.000.130.131.30

0.611.901.35

180.0056.0029.00

240.008.806.70

24.0019.000.6011.001.00

20.00210.00<2.00

<20.00<10.00410.0012.00

<10.0020.001.00

42.0014.00

1600.00369.00

0.6010.00

MINIMUM

0.0034.000.00

50.007.600.606.80

41.000.130.010.01

0.010.000.00

58.0012.002.700.000.000.100.000.000.000.000.00

20.00<20.00

2.00<20.00<10.00<10.00<2.00

<10.00<20.00<1.000.001.00

10.0074.00

<0.0510.00

STANDARD MEAN DEVIA

TION

6.66194.14

3.13244.2010.312.34--

122.94--0.030.25

0.150.200.04

127.8432.5911.244.730.190.962.076.070.156.22-------- -- -- --6.924.90

433.27137.87

--

4.93344.64

4.7353.161.501.00--

25.01--0.030.22

0.120.410.15

25.347.143.43

26.310.960.743.344.080.091.68---- ------ -- 9.164.56

412.5035.37

----

PERCENT OF SAMPLES IN WHICH VALUES WERE LESS THAN OR EQUAL TO THOSE SHOWN95

15.771.18.

312.12.3.8.

148.--0.0.

0.1.0.

160.43.15.3.0.1.8.

16.0.9.1.----

<2.<20.<10.410.12.

<10.<20.

1.35.14.

1460.167.

0.

0020250068794200

1266

3861120085855010704700303900

000000000000000025000000

60

75

10.50143.00

3.00280.0011.603.228.20

140.00--0.050.33

0.190.220.02

150.0037.0013.002.300.101.121.808.000.206.801.00----

<2.00<20.00<10.0030.003.00

<10.00<20.00<1.0011.008.00

587.50154.00

<0.50

50 (MEDIAN)

5.5071.001.00

260.0010.502.108.10

131.00--0.010.19

0.130.050.01

130.0034.0012.001.800.100.901.104.900.106.30<1.00 --

<2.00<20.00<10.0020.00<2.00

<10.00<20.00<1.002.003.00

265.00140.00

<0.50--

25

2.0055.001.00

225.008.901.527.90

110.00 0.010.12

0.070.000.01

120.0029.009.471.300.100.600.403.300.105.75<1.00 --

<2.00<20.00<10.00<10.00<2.00

<10.00<20.00<1.001.001.00

140.00120.00

<0.50--

5

0.5041.200.00

139.008.080.777.24

74.15 0.010.02

0.020.000.0073.7518.155.320.530.000.310.101.000.103.73<1.00

<2.00<20.00<10.00<10.00<2.00

<10.00<20.00<1.000.251.00

23.3087.20

<0.50--

28

Table 1.--Statistical summaries of water-quality data from the Powder River coal basin, based on samples collected from October 1, 1974, to September 30, 1981 --Continued

STATION NUMBER: 06298000 STATION NAME AND LOCATION: TONGUE RIVER NEAR DAYTON, WYO.--Continued

REGRESSION STATISTICS

WATER QUALITY CONSTITUENT SAMPLE REGRESSION INDEPENDENT REGRESSION SIZE COEFFICIENT VARIABLE CONSTANT

COEFFICIENT OF SIGNIFICANCE STANDARDDETERMINATION PROBABILITY ERROR OF

(r 2 ) OF F ESTIMATE

TURBIDITY (NTU)SPECIFIC CONDUCTANCE (MICROSIEMENS)ALKALINITY (AS CAC03)HARDNESS (AS CAC03)CALCIUM, DISSOLVEDMAGNESIUM, DISSOLVEDSODIUM, DISSOLVEDSODIUM ADSORPTION RATIOPOTASSIUM, DISSOLVEDCHLORIDE, DISSOLVEDSULFATE, DISSOLVEDSOLIDS, SUM OF CONSTITUENTS, DISSOLVED

407474747474737472587172

0.00779-97.8-53.5-54.3-12.8

*.».*"':

*

*

*

QLOGQLOGQLOGQLOGQLOGQLOGQLOGQ

QKQ

LOGQ

1.3444223023658.2

**.1**iV

*

0.51.61.76.79.54.40.00.00.03.01.05.37

0.0001.0001.0001.0001.0001.0001.559.592.158.584.0644.0001

33313115

fc

*

5660900

-

29

Table 1.--Statistical summaries of water-quality data from the Powder River coal basin, based on samples collected from October 1, 1974, to September 30, 1981 Continued

STATION NUMBER: 06299980 STATION NAME AND LOCATION: TONGUE RIVER AT MONARCH, WYO. DRAINAGE AREA: NOT AVAILABLE


WATER QUALITY CONSTITUENTSAM PLE MAXIMUM

PERCENT OF SAMPLES INSTANDARD WERE LESS THAN OR EQUAL

MINIMUM MEANSIZE

TEMPERATURE (DEC C)STREAMFLOW, INSTANTANEOUS (FT3/S)TURBIDITY (NTU)SPECIFIC CONDUCTANCE (MICROSIEMENS)OXYGEN, DISSOLVEDOXYGEN DEMAND, BIOCHEMICAL, 5 DAYPH (UNITS)ALKALINITY (MG/L AS CAC03)NITROGEN, AMMONIA DISSOLVED (AS N)NITROGEN, AMMONIA TOTAL (AS N)NITROGEN, AMMONIA + ORGANIC TOTAL

(AS N)NITROGEN, N02+N03 TOTAL (AS N)NITROGEN, N02+N03 DISSOLVED (AS N)PHOSPHORUS, TOTAL (AS P)CARBON, ORGANIC DISSOLVEDCARBON, ORGANIC SUSPENDEDHARDNESS (AS CAC03)CALCIUM DISSOLVEDMAGNESIUM, DISSOLVEDSODIUM, DISSOLVEDSODIUM ADSORPTION RATIOPOTASSIUM, DISSOLVEDCHLORIDE, DISSOLVEDSULFATE DISSOLVEDFLUORIDE, DISSOLVEDSILICA, DISSOLVEDARSENIC DISSOLVED (UG/L)BORON, DISSOLVED (UG/L)CADMIUM DISSOLVED (UG/L)CHROMIUM, DISSOLVED (UG/L)COPPER, DISSOLVED (UG/L)IRON, DISSOLVED (UG/L)LEAD, DISSOLVED (UG/L)MANGANESE, DISSOLVED (UG/L)ZINC, DISSOLVED (UG/L)SELENIUM, DISSOLVED (UG/L)PHENOLS (UG/L)PHYTOPLANKTON, TOTAL (CELLS PER ML)SOLIDS, SUM OF CONSTITUENTS,DISSOLVED

MERCURY DISSOLVED (UG/L)SEDIMENT, SUSPENDED

75737375713673732

7373

732

7377

737373737373737368731666161618641816181872

73

182

2322001006601398

244002

00081

300673232075

150093

3503

206

490163020

120

470395

036

.00

.00

.00

.00

.60

.60

.90

.00

.02

.31

.00

.87

.10

.28

.30

.10

.00

.00

.00

.00

.90

.40

.20

.00

.40

.30

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.50

.00

0.0043.000.70

180.007.900.806.90

79.000.010.000.01

0.000.010.002.900.20

93.0022.007.603.000.100.300.6012.000.000.10

<1.00<20.00<2.00

<20.00<2.00

<10.00<2.00

<10.00<20.00<1.000.00

360.00105.00

<0.5016.00

8.51246.8212.31

438.6010.392.62--

175.01--0.060.55

0.14 0.04----

213.2348.3322.5015.820.462.012.06

66.970.196.87-------- ---------- --

269.85

----

DEVIA- 95TION

7.42 21392.70 115521.14 80107.43 582

1.39 121.57 5

840.08 215 0.06 00.37 1

0.14 0 0.04 0____

51.57 27010.73 616.18 306.63 290.17 00.92 30.83 3

29.04 1300.06 01.52 9

3136

3<20

6317163020

1.___70.78 374

<0__

75 50

WHICH VALUESTO THOSE

25SHOWN

5(MEDIAN)

.60

.00

.00

.00

.40

.60-52.10-.20.33

.35-.13--.00.30.00.60.80.19.60.00.30.03.00.00.00.00.00.50.00.00.00.00--.60

.50-

14.50189.5010.00

520.0011.603-158.20

200.00--0.080.71

0.21--0.04----

250.0055.0027.0019.000.502.352.4578.500.207.801.00

60.002.00

<20.002.25

80.003.00

20.00<20.00<1.00----

306.50

<0.50--

8.00111.00

4.10450.0010.402.358.00

190.00 0.040.46

0.10--0.02----

230.0051.0024.0015.000.501.801.90

68.000.207.101.00

50.00<2.00

<20.00<2.0040.00<2.0010.00

<20.00<1.00----

288.00

<0.50--

0.5074.002.00

395.009.201.627.85

160.00--0.010.34

0.05--0.01----

190.0044.5020.0012.500.401.501.60

57.500.206.30

<1.0040.00<2.00

<20.00<2.0020.00<2.00

<10.00<20.00<1.00----

241.50

<0.50--

0.0052.801.00

208.008.000.977.47

87.20 0.010.10

0.01--0.01--

99.7025.009.184.420.201.000.7716.400.104.87

<1.00<20.00<2.00

<20.00<2.00

<10.00<2.00

<10.00<20.00<1.00--

115.80

<0.50--



TURBIDITY (NTU)SPECIFIC CONDUCTANCE (MICROSIEMENS)ALKALINITY (AS CAC03)HARDNESS (AS CAC03)CALCIUM, DISSOLVEDMAGNESIUM, DISSOLVEDSODIUM, DISSOLVEDSODIUM ADSORPTION RATIOPOTASSIUM, DISSOLVEDCHLORIDE, DISSOLVEDSULFATE, DISSOLVED

SAMPLE SIZE

SOLIDS, SUM OF CONSTITUENTS, DISSOLVED

676968686868686868686868

REGRESSION COEFFICIENT

-209*

.313

.443

.0889

.0531

.0512

.00114#*.239.628

INDEPENDENT REGRESSION VARIABLE CONSTANT

QLOGQ

KKKKKKKKKK

*88737.318.59.18-.841

-6.51-.0392**

-37.9-5.87

COEFFICIENT OF SIGNIFICANCE DETERMINATION PROBABILITY

(r 2 ) OF F

0.26.56.73.88.83.87.69.54.10.32.79.92

0 .0001.0001.0001.0001.0001.0001.0001.0001.0085.0001.0001.0001

STANDARD ERROR OF ESTIMATE

--73.721.518.74.482.273.83.119**

13.820.1

30

Table 1.--Statistical summaries of water-quality data from the Powder JRiver coal basin, based on samples collected from October 1, 1974, to September 30, I981--Continued

STATION NUMBER: 06304500 STATION NAME AND LOCATION: LITTLE GOOSE CREEK AT SHERIDAN, WYO. DRAINAGE AREA: NOT AVAILABLE



TEMPERATURE (DEG C)STREAMFLOW, INSTANTANEOUS (FT3/S)TURBIDITY (NTU)SPECIFIC CONDUCTANCE (MICROSIEMENS)OXYGEN, DISSOLVED (MG/L)PH (UNITS)NITROGEN, AMMONIA TOTAL (AS N)NITROGEN, AMMONIA + ORGANIC TOTAL

(AS N)NITROGEN, N02+N03 TOTAL (AS N)PHOSPHORUS, TOTAL (AS P)

SAM PLESIZE

2929292928291617

1717

MAXIMUM

29.00268.0035.00

1120.0014.008.800.833.80

0.780.41

MINIMUM

0.004.002.00

210.007.007.800.000.52

0.000.00

MEAN

11.56.8.

721.11.--0.1.

0.0.

0761247216

0911

1708

STANDARD DEVIATION

8.3366.397.79

190.561.64--0.200.90

0.250.10

PERCENT OF SAMPLES IN WHICH VALUESWERE LESS THAN95

27.00246.5030.00

1060.0013.918.700.833.80

0.780.41

75

17.2568.0010.00

830.0012.408.400.071.25

0.280.11

OR EQUAL TO THOSE SHOWN50

(MEDIAN)

11.5032.006.00

740.0010.808.300.050.74

0.050.03

25

3.5015.503.00

652.5010.208.100.010.59

0.010.02

5

0.006.652.00

235.007.907.850.000.52

0.000.00



TURBIDITY (NTU) SPECIFIC CONDUCTANCE (MICROSIEMENS)

SAMPLE SIZE

26 26


-2.56

INDEPENDENT VARIABLE

Q Q

REGRESSION CONSTANT

-A-

878

COEFFICIENT OF DETERMINATION

(r 2 )

0.48 .79

SIGNIFICANCE PROBABILITY

OF F

0.0001 .0001


94.2

31

Table 1.--Statistical summaries of water-quality data from the Powder River coal basin, based on samples collected from October 1, 1974, to September 30, 1981--Continued

STATION NUMBER: 06305500 STATION NAME AND LOCATION: GOOSE CREEK BELOW SHERIDAN, WYO. DRAINAGE AREA: 392 SQUARE MILES



TEMPERATURE (DEG C)STREAMFLOW, INSTANTANEOUS (FT3/S)TURBIDITY (NTU)SPECIFIC CONDUCTANCE (MICROSIEMENS)OXYGEN, DISSOLVEDOXYGEN DEMAND, BIOCHEMICAL, 5 DAYPH (UNITS)ALKALINITY (AS CAC03)NITROGEN, AMMONIA DISSOLVED (AS N)NITROGEN, AMMONIA TOTAL (AS N)NITROGEN, AMMONIA + ORGANIC TOTAL

(AS N)NITROGEN, N02+N03 TOTAL (AS N)NITROGEN, N02+N03 DISSOLVED (AS N)PHOSPHORUS, TOTAL (AS P)CARBON, ORGANIC DISSOLVEDCARBON, ORGANIC SUSPENDEDHARDNESS (AS CAC03)CALCIUM DISSOLVEDMAGNESIUM, DISSOLVEDSODIUM, DISSOLVEDSODIUM ADSORPTION RATIOPOTASSIUM, DISSOLVEDCHLORIDE, DISSOLVEDSULFATE DISSOLVEDFLUORIDE, DISSOLVEDSILICA, DISSOLVEDARSENIC DISSOLVED (UG/L)BORON, DISSOLVED (UG/L)CADMIUM DISSOLVED (UG/L)CHROMIUM, DISSOLVED (UG/L)COPPER, DISSOLVED (UG/L)IRON, DISSOLVED (UG/L)LEAD, DISSOLVED (UG/L)MANGANESE, DISSOLVED (UG/L)ZINC, DISSOLVED (UG/L)SELENIUM, DISSOLVED (UG/L)COLIFORM, FECAL, (COLS/ 100 ML)PHENOLS (UG/L)PHYTOPLANKTON, TOTAL (CELLS PER ML)SOLIDS, SUM OF CONSTITUENTS,DISSOLVED


SAM PLE MAXIMUM SIZE

1431578284816784852

8282

82268587

85858585858585858585165

161619171916191823102

85

1996

29.5540.

90.1050.

14.9.8,

295.0.2.9,

0,1.2.

13.1,

480.150.65,49.1.

11.20.

260.0.

16.1.

160.2.

<20,8.

110,12.60,

<20.2,

208000.21

3200621

<01740

.00

.00

.00

.00,40.90.70,00,01.60.60

.82

.40

.70

.00

.40

.00

.00,00.00.10.00,00.00.70.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00

.50

.00

MINIMUM MEAN

0.0018.001.00

165.005.601.406.80

41.000.010.010.42

0.000.010.034.400.10

60.0014.006.104.800.200.200.80

21.000.100.00<1.0050.00<2.00

<20.00<2.00

<10.00<2.00

<10.00<20.00<1.00

1400.001.00

2100.0095.00

<0.505.00

9.49301.6812.51

682.8010.304.76

223.62--0.661.52

0.250.220.37 --

316.1161.1639.6427.990.673.136.54

140.460.398.18 -------- --

34917.396.40--

423.41

--113.60

STANDARD DEVIA TION

7.95651.5314.62

199.371.911.78

64.45--0.521.18

0.200.290.40 --

97.7820.0714.159.570.171.543.72

53.050.123.09-- ---- ------

41838.355.74

130.05

--297.85

PERCENT OF SAMPLES IN WERE LESS THAN OR EQUAL95

24.001388.0040.00

937.5013.208.568.60

286.70--1.702.97

0.581.121.12----

440.0082.5058.7040.000.905.0016.00

227.000.6013.001.00 2.00

<20.008.00

110.0012.0060.00<20.00

2.00179198.24

21.00--

597.00

<0.50788.00

75

14.00181.0015.00

800.0011.605.608.30

262.50 0.991.80

0.430.220.43----

370.0072.0048.0034.000.803.807.60

170.000.5010.001.00--2.00

<20.003.00

55.003.00

37.50<20.00

1.0041000.00

8.25

495.00

<0.5058.50

WHICH VALUES TO THOSE SHOWN

50 25 (MEDIAN)

8.5096.007.00

730.0010.404.708.20

250.00--0.551.30

0.190.120.28----

350.0066.0043.0030.000.703.005.80

150.000.408.00<1.00

<2.00<20.00

2.0050.00<2.0025.00<20.00

1.0030999.93

4.50

466.00

<0.5022.00

1.0070.003.00

650.009.103.207.90

206.00 0.240.85

0.100.050.15--

290.0056.0035.0025.000.602.454.20

120.000.306.35<1.00--

<2.00<20.00<2.0015.00<2.00

<10.00<20.00<1.00

12000.002.75--

391.00

<0.5014.00

5

0.0040.701.00

202.506.732.207.42

66.50 0.010.51

0.030.020.04--

86.2018.608.956.110.301.001.83

30.300.132.82

<1.00--

<2.00<20.00<2.00

<10.00<2.00

<10.00<20.00<1.00

1420.001.00

121.00

<0.507.00

32


STATION NUMBER: 06305500 STATION NAME AND LOCATION: GOOSE CREEK BELOW SHERIDAN, WYO.--Continued


WATER QUALITY CONSTITUENT SAMPLE SIZE

TURBIDITY (NTU)SPECIFIC CONDUCTANCE (MICROSIEMENS)ALKALINITY (AS CAC03)HARDNESS (AS CAC03)CALCIUM, DISSOLVEDMAGNESIUM, DISSOLVEDSODIUM, DISSOLVEDSODIUM ADSORPTION RATIOPOTASSIUM, DISSOLVEDCHLORIDE, DISSOLVEDSULFATE, DISSOLVEDSOLIDS, SUM OF CONSTITUENTS, DISSOLVEDSEDIMENT, SUSPENDED

80828282828282828282828221

TMTiFPFMTlFiaT PFnwwnv COEFFICIENT OF SIGNIFICANCE REGRESSION INDEPENDENT REGRESSION nrTr.RMTvrATTnN PRDRARTTTTV COEFFICIENT VARIABLE CONSTANT DETERMINATION PROBABILITY

*-460

.294

.466

.0849

.0614

.0436

.000686**.245.623.100

LOGQLOGQ

KKKKKKK

LOGQKKK

iV

1,61023.7-.3603.30-2.07-1.61

.207 v*

-25.5.201

13.7

0.41.82.82.90.71.75.82.69.25.29.84.91.81

0.0001.0001.0001.0001.0001.0001.0001.0001.0001.0001.0001.0001.0001


*86.527.731.711.07.224.10.0941

-/v*

21.440.015-8

33

Table 1.--Statistical summaries of water-gua2ity data from the Powder River coal basin, based on samples collected from October 1, 1974, to September 30, 1981--Continued

STATION NUMBER: 06306300 STATION NAME AND LOCATION: TONGUE RIVER AT STATE LINE, NEAR DECKER, MONT. DRAINAGE AREA: 1,477 SQUARE MILES




MINIMUM MEANSIZE

TEMPERATURE (DEC C)STREAMFLOW, INSTANTANEOUS (FT3/S)TURBIDITY (NTU)SPECIFIC CONDUCTANCE (MICROSIEMENS)OXYGEN, DISSOLVEDOXYGEN DEMAND, BIOCHEMICAL, 5 DAYPH (UNITS)ALKALINITY (AS CAC03)NITROGEN, AMMONIA TOTAL (AS N)NITROGEN, AMMONIA + ORGANIC TOTAL



88827188843486877985

83248499

84848484848384848481188

1818212021182123152

2882

2126

254320100

17001388

62005

101

363

900180110981

1118

4901

264

1203

2050

3601480601

24004

88001320

<0213

.00

.00

.00

.00

.80

.00

.70

.00

.67

.20

.40

.98

.60

.00

.90

.00

.00

.00

.00

.40

.00

.00

.00

.70

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.50

.00

0.0071.001.00

230.006.000.807.00

72.000.000.08

0.000.000.003.400.40

100.0024.009.605.900.300.200.9030.000.100.00

<1.0070.00<2.00

<20.00<2.00

<10.00<2.00

<10.00<20.00<1.0020.001.00

170.00130.00

<0.509.00

8.89500.7717.11

727.4710.052.64--

224.590.150.80

0.200.230.09----

340.6067.3641.7934.520.803.545.02

181.390.396.91--------------------

268.93--

1872.86475.72

--55.54

DEVIA- 95TION

8.00 22715.81 173421.69 74

227.37 10161.79 131.41 5

870.40 2920.15 00.67 2

0.22 00.28 00.17 0 _.

112.48 44721.90 9115.14 5614.16 510.22 11.40 53.40 1575.51 2800.19 03.61 12

4

32050

2751276601

602.29 2400--

2073.71 7854169.88 647

<044.65 185

75 50


25SHOWN

5(MEDIAN)

.55

.99

.00

.60

.15

.82

.60

.40

.45

.08

.54

.96

.20--.50.00.75.75.17.48.50.00.67.90.00-.00.00.00.00.00.00.00.00.00-.97.20

.50

.70

15.87427.2520.00

850.0011.473.258.30

260.000.220.90

0.350.330.11----

400.0078.7550.0042.000.904.205.82

230.000.408.601.00--2.00

<20.004.50

40.004.00

30.00<20.00

1.00130.00

--2400.00569.25

<0.5063.75

8.75264.0010.00

760.009.902.408.10

240.000.090.66

0.110.140.06----

360.0069.5044.0035.000.803.504.10

190.000.406.601.00--2.00

<20.002.00

20.002.00

20.00<20.00<1.00100.00

--945.00502.00

<0.5046.50

0.00184.50

4.00642.50

8.601.577.90

200.000.040.48

0.030.010.03----

290.0056.5036.0028.000.702.803.50

142.500.304.65

<1.00--

<2.00<20.00

2.00<10.00<2.00

<10.00<20.00<1.0068.00--

565.00395.00

<0.5029.75

0.00104.15

1.60289.00

7.200.957.47

96.800.010.19

0.010.000.01----

125.0027.0013.258.600.301.601.72

42.000.202.33

<1.00--

<2.00<20.00<2.00

<10.00<2.00

<10.00<20.00<1.0020.00--

219.50176.40

<0.509.00




SAMPLE SIZE

SOLIDS, SUM OF CONSTITUENTS, DISSOLVEDSEDIMENT, SUSPENDED

66828179797979797879797826


-446*

.250

.448

.0837

.0579

.0569

.000946

.00397-v

.311

.647

.106


LOGQLOGQ

KKKKKKKKKKQ

*1,820

39.813.15.99-.372

-7.16.106.582*

-46.2.739

21.3


(r 2 ) OF F

0.47.64.80.91.87.76.87.82.50.14.87.86.53

0 .0001.0001.0001.0001.0001.0001.0001.0001.0001.0007.0001.0001.0001


*12425.529.46.586.564.42.0904.799*

24.53.031.3

34


STATION NUMBER: 06312500 STATION NAME AND LOCATION: POWDER RIVER NEAR KAYCEE, WYO.DRAINAGE AREA: 980 SQUARE MILES




MINIMUM MEANSIZE

TEMPERATURE (DEC C)STREAMFLOW, INSTANTANEOUS (FT3/S)TURBIDITY (NTU)SPECIFIC CONDUCTANCE (MICROSIEMENS)OXYGEN, DISSOLVEDPH (UNITS)ALKALINITY (AS CAC03)NITROGEN, AMMONIA TOTAL (AS N)NITROGEN, AMMONIA + ORGANIC TOTAL

(AS N)NITROGEN, N02+N03 TOTAL (AS N)NITROGEN, N02+N03 DISSOLVED (AS N)PHOSPHORUS, TOTAL (AS P)HARDNESS (AS CAC03)CALCIUM DISSOLVEDMAGNESIUM, DISSOLVEDSODIUM, DISSOLVEDSODIUM ADSORPTION RATIOPOTASSIUM, DISSOLVEDCHLORIDE, DISSOLVEDSULFATE DISSOLVEDFLUORIDE, DISSOLVEDSILICA, DISSOLVEDBORON, DISSOLVED (UG/L)IRON, DISSOLVED (UG/L)COLIFORM, FECAL, (COLS/ 100 ML)SOLIDS, SUM OF CONSTITUENTS,DISSOLVED

8475794181378111

1228181818181818181818180

11

2480

26126030001900

138

25000

022

68019064180

39

110710

113

13010

34001300

.00

.00

.00

.00

.00

.70

.00

.03

.60

.05

.10

.80

.00

.00

.00

.00

.50

.10

.00

.00

.00

.00

.00

.00

.00

.00

0.000.332.00

400.006.207.60

82.000.030.60

0.050.000.00

160.0045.0012.0014.000.501.305.60

92.000.001.50

130.0010.006.00

233.00

9.43157.31225.291224.88

9.87--

184.05----

--0.390.19

446.17110.4041.3693.481.903.38

47.76387.60

0.537.69----

363.71803.90

DEVIA- 95TION

8.13 23257.59 1010513.78 1500331.25 1866

1.76 128

33.21 230--__

--0.51 10.38 0

111.57 59827.18 14911.74 6035.77 1590.62 31.14 5

22.46 91131.38 589

0.17 02.16 11----

728.76 2849228.17 1169

75 50


25SHOWN

5(MEDIAN)

.00

.00

.00

.00

.50

.52

.00--

-.99.84.00.00.00.00.10.35.70.00.80.00--.97.50

17.00140.00120.00

1440.0011.608.25

202.50----

--0.500.13

520.00130.0049.00110.00

2.203.75

56.50475.00

0.609.30----

355.00938.00

8.2592.0030.00

1190.009.908.10

190.00----

--0.250.05

460.00120.0043.0090.001.803.30

47.00390.00

0.507.60----

92.00825.50

1.0023.0010.00

1060.008.358.00

170.00----

--0.040.03

395.0097.5035.0078.501.602.70

37.50330.00

0.405.92----

27.75716.75

0.000.842.00

500.707.027.69

108.30----

--0.000.01

210.0054.4015.2024.300.802.017.98

111.000.304.03----6.75

313.25




SAMPLE SIZE


283229292929292929292929


-337*

.0693

.311

.0713

.0324

.109

.00168*.0662.378.670


LOGQLOGQ

KKKKKKKKKK

J-

1,78097.868.622.82.43

-34.3-.0710*

-30.2-63.1-37.8


(r 2 ) OF F

0.10.62.60.90.87.80.89.79.12.78.96.97

0 .101.0001.0001.0001.0001.0001.0001.0001.0699.0001.0001.0001


J.

22620.438.19.865.7813.8

.308*

12.527.645.2

35

Table I.--Statistical summaries of water-quality data from the Powder River coal basin, based on samples collected from October 1, 1974, to September 30, 1981 Continued

STATION NUMBER: 06313000 STATION NAME AND LOCATION: SOUTH FORK POWDER RIVER NEAR KAYCEE, WYO. DRAINAGE AREA: 1,150 SQUARE MILES


WATER QUALITY CONSTITUENTSAM- PLE MAXIMUM


MINIMUM MEAN DEVIA- 95SIZE

TEMPERATURE (DEC C)STREAMFLOW, INSTANTANEOUS (FT3/S)TURBIDITY (NTU)SPECIFIC CONDUCTANCE (MICROS IEMENS)OXYGEN, DISSOLVEDPH (UNITS)ALKALINITY (AS CAC03)NITROGEN, AMMONIA TOTAL (AS N)NITROGEN, AMMONIA + ORGANIC TOTAL

(AS N)NITROGEN, N02+N03 TOTAL (AS N)NITROGEN, N02+N03 DISSOLVED (AS N)PHOSPHORUS, TOTAL (AS P)HARDNESS (AS CAC03)CALCIUM DISSOLVEDMAGNESIUM, DISSOLVEDSODIUM, DISSOLVEDSODIUM ADSORPTION RATIOPOTASSIUM, DISSOLVEDCHLORIDE, DISSOLVEDSULFATE DISSOLVEDFLUORIDE, DISSOLVEDSILICA, DISSOLVEDARSENIC DISSOLVED (UG/L)CADMIUM DISSOLVED (UG/L)CHROMIUM, DISSOLVED (UG/L)COPPER, DISSOLVED (UG/L)IRON, DISSOLVED (UG/L)LEAD, DISSOLVED (UG/L)MANGANESE, DISSOLVED (UG/L)ZINC, DISSOLVED (UG/L)SELENIUM, DISSOLVED (UG/L)COLIFORM, FECAL, (COLS/ 100 ML)SOLIDS, SUM OF CONSTITUENTS,DISSOLVED

MERCURY DISSOLVED (UG/L)

687451475043691817

18236869696969696969696969999999999

1069

9

. 311000

240006200

128

27929

2104

18004701709301315

4203000

432

12

2018409

903026

32004800

<0

.50

.00

.00

.00

.90

.50

.00

.50

.10

.90

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.60

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.50

0.000.001.00

2050.006.207.50

70.000.010.07

0.020.000.01

450.0032.0025.00

210.004.100.8016.00

760.000.600.00<1.00<2.00<20.00

2.00<10.00<2.00

<10.00<20.00

1.0014.00

770.00

<0.50

8.8732.27

1344.293763.40

9.79--

165.000.171.71

1.121.590.33

1106.96295.2585.94

503.776.689.11

126.031795.65

1.387.30------ ------ --

478.302919.32

--

TION

9.47 28123.73 159

3714.43 6899975.24 5380

1.75 128

42.53 2340.58 22.44 9

0.90 22.24 90.71 2

325.06 160098.03 44528.64 135156.88 745

1.72 92.73 1471.65 225

511.13 26500.73 33.86 11____---- ---- --

969.80 3200839.63 4250

--

75 50


25SHOWN

5(MEDIAN)

.77

.25

.98

.00

.69

.48

.00

.50

.10

.90

.04

.07

.00

.00

.00

.00

.90

.00

.00

.00

.35

.00---------.00.00

-

16.3713.75

1100.004500.00

11.328.20

200.000.041.55

1.932.200.23

1400.00380.00100.00630.00

7.8011.00

175.002300.00

1.308.60------ ----------

420.003565.00

--

4.753.00

60.003900.00

10.208.00

164.000.030.79

1.100.800.05

1100.00310.0087.00

480.006.309.00

120.001800.00

1.207.10-------- ---- --

96.503040.00

--

0.500.0510.00

3000.008.357.90

131.000.010.56

0.170.040.03

830.00220.0066.00

380.005.357.10

69.001400.00

1.105.45------------ ----

52.002301.50

--

0.000.001.00

2140.006.867.50

89.000.010.07

0.020.000.01

515.00135.0038.50

250.004.305.4030.50

860.000.852.35------ -- -- --14.00

1400.00



TURBIDITY (NTU)SPECIFIC CONDUCTANCE (MICROS IEMENS)ALKALINITY (AS CAC03)HARDNESS (AS CAC03)CALCIUM, DISSOLVEDMAGNESIUM, DISSOLVEDSODIUM, DISSOLVEDSODIUM ADSORPTION RATIOPOTASSIUM, DISSOLVEDCHLORIDE, DISSOLVEDSULFATE, DISSOLVED

SAMPLE SIZE


232727272727272727272726


**JL

0.244**.117**.0508.381.699


QLOGQLOGQ

KKKKKKKKK

REGRESSION CONSTANT

***

157**

83.5**

-79.3394295


(r 2 ) OF F

0.35.31.12.50.26.41.62.23.38.56.56.61

0 .0029.0024.0820.0001.0070.0003.0001.0123.0007.0001.0001.0001


***

222A*

83.9**

40.8312518

36

Table 1. --Statistical summaries of water-quality data from the Powder River coal basin, based on samples collected from October 1, 1974, to September 30, 1981 --Continued

STATION NUMBER: 06313400 STATION NAME AND LOCATION: SALT CREEK NEAR SUSSEX, WYO.DRAINAGE AREA: 769 SQUARE MILES

DESCRIPTIVE


STATISTICSSAM PLE MAXIMUM MINIMUM MEANSIZE


(AS N)NITROGEN, N02+N03 TOTAL (AS N)NITROGEN, N02+N03 DISSOLVED (AS N)PHOSPHORUS, TOTAL (AS P)CARBON, ORGANIC DISSOLVEDCARBON, ORGANIC SUSPENDEDHARDNESS (AS CAC03)CALCIUM DISSOLVEDMAGNESIUM, DISSOLVEDSODIUM, DISSOLVEDSODIUM ADSORPTION RATIOPOTASSIUM, DISSOLVEDCHLORIDE, DISSOLVEDSULFATE DISSOLVEDFLUORIDE, DISSOLVEDSILICA, DISSOLVEDARSENIC DISSOLVED (UG/L)BORON, DISSOLVED (UG/L)CADMIUM DISSOLVED (UG/L)CHROMIUM, DISSOLVED (UG/L)COPPER, DISSOLVED (UG/L)IRON, DISSOLVED (UG/L)LEAD, DISSOLVED (UG/L)MANGANESE, DISSOLVED (UG/L)ZINC, DISSOLVED (UG/L)SELENIUM, DISSOLVED (UG/L)PHENOLS (UG/L)PHYTOPLANKTON, TOTAL (CELLS PER ML)SOLIDS, SUM OF CONSTITUENTS,DISSOLVED


1471481076716067822

6564

652783

11

828282828281828282827

6377787777

122

81

782

29236026008000

1298

107000

38

003

120

3100600390

18004926

16002000

9336

62003

109

44035

27040

11106607100

<088200

.50 0.

.00 8.

.00 20.

.00 1700.

.40 0.

.80 0.

.90 7.

.00 150.

.01 0.

.91 0.

.00 0.

.64 0.

.85 0.

.30 0.

.00 12.

.90 0.

.00 200.

.00 23.

.00 7.

.00 140.

.00 1.

.00 6.

.00 120.

.00 570.

.20 0.

.00 5.

.00 1.

.00 270.

.00 <2.

.00 <10.

.00 <2.

.00 <10.

.00 <2.

.00 <10.

.00 <20.

.00 <1.

.00 3.

.00 150.

.00 1180.

.50 <0.

.00 61.

0000000070107000010019

00000100900000800010600000300000000000000000000000000000

5000

10.7980.90

543.16550.53

7.535.43--

648.02--0.262.36

0.090.120.26----

406.7179.8550.20

1335.4931.4016.55

1132.681025.37

2.5520.01--

1788.73----------------

22.92--

4074.44

--5038.97

STANDARD DEVIATION

8.69222.95871.141309.68

2.511.89--

179.38--0.225.02

0.120.230.48----

324.8064.5141.67

299.479.273.66

321.50290.20

1.436.07--

800.61----------------

30.21--

745.56

--14476.75

PERCENT OF SAMPLES INWERE LESS THAN OR EQUAL95 75 50


25SHOWN

5(MEDIAN)

25.00315.00

2600.008000.00

11.087.608.50

965.90--0.648.65

0.380.801.28----

667.00140.0088.25

1600.0044.0021.90

1400.001700.00

4.6728.70--

2640.00----------------

110.00--

4786.00

--32679.93

17.5045.50

850.007725.00

9.206.978.40

752.50--0.422.00

0.110.100.25----

410.0092.2550.25

1500.0038.0019.50

1300.001100.00

3.6224.00--

2000.00----------------

24.25--

4450.00

--1547.50

11.5031.00140.00

6704.997.805.908.30

667.00--0.181.25

0.040.030.10----

350.0067.5042.00

1400.0032.5017.00

1210.00945.00

2.3022.00--

1900.00----------------

11.00--

4130.00

--715.00

0.5026.0036.50

6000.006.804.208.10

580.50--0.090.91

0.010.000.04----

290.0053.7536.00

1300.0027.7514.50

1100.00847.50

1.5016.00--

1600.00----------------7.25--

3870.00

--341.00

0.0016.0020.00

3365.002.382.417.90

225.95--0.010.41

0.000.000.01----

231.5033.6029.00

460.009.649.82

292.50703.00

0.407.63--

420.00---- ----------3.00--

2596.00

--134.30



SPECIFIC CONDUCTANCE (MICROSIEMENS)ALKALINITY (AS CAC03)HARDNESS (AS CAC03)CALCIUM, DISSOLVEDMAGNESIUM, DISSOLVEDSODIUM, DISSOLVEDSODIUM ADSORPTION RATIOPOTASSIUM, DISSOLVEDCHLORIDE, DISSOLVEDSULFATE, DISSOLVED

SAMPLE SIZE


646261616161616162626024

REGRESSION ] COEFFICIENT

*** if

*

0.175**.193**

38.8

[NDEPENDEI VARIABLE

LOGQK

LOGQLOGQLOGQ

KKKKQKK

COEFFICIENT OF SIGNIFICANCE CONSTANT DETERMINATION PROBABILITY

(r 2 ) OF F

*****

189>v*-**

-265

137

0.43.44.04.06.01.66.49.44.54.01.44.53

0 .0001.0001.147.0537.485.0001.0001.0001.0001.390.0001.0001


*****

170**

241**>v

723

37

Table I.--Statistical summaries of water-quality data from the Powder River coal basin, based on samples collected front October 1, 1974, to September 30, 2982--Continued

STATION NUMBER: 06313500 STATION NAME AND LOCATION: POWDER RIVER AT SUSSEX, WYO. DRAINAGE AREA: 3,090 SQUARE MILES


WATER QUALITY CONSTITUENTSAM PLE MAXIMUM MINIMUM MEANSIZE

TEMPERATURE (DEC C)STREAMFLOW, INSTANTANEOUS (FT3/S)TURBIDITY (NTU)SPECIFIC CONDUCTANCE (MICROSIEMENS)OXYGEN, DISSOLVEDPH (UNITS)ALKALINITY (AS CAC03)NITROGEN, AMMONIA DISSOLVED (AS N)NITROGEN, AMMONIA TOTAL (AS N)NITROGEN, AMMONIA + ORGANIC TOTAL

(AS N)NITROGEN, N02+N03 TOTAL (AS N)NITROGEN, N02+N03 DISSOLVED (AS N)PHOSPHORUS, TOTAL (AS P)CARBON, ORGANIC DISSOLVEDCARBON, ORGANIC SUSPENDEDHARDNESS (AS CAC03)CALCIUM DISSOLVEDMAGNESIUM, DISSOLVEDSODIUM, DISSOLVEDSODIUM ADSORPTION RATIOPOTASSIUM, DISSOLVEDCHLORIDE, DISSOLVEDSULFATE DISSOLVEDFLUORIDE, DISSOLVEDSILICA, DISSOLVEDARSENIC DISSOLVED (UG/L)BARIUM, DISSOLVED (UG/L)BORON, DISSOLVED (UG/L)CADMIUM DISSOLVED (UG/L)CHROMIUM, DISSOLVED (UG/L)COPPER, DISSOLVED (UG/L)IRON, DISSOLVED (UG/L)LEAD, DISSOLVED (UG/L)MANGANESE, DISSOLVED (UG/L)ZINC, DISSOLVED (UG/L)SELENIUM, DISSOLVED (UG/L)STREPTOCOCCI, FECAL (COLS/ 100 ML)PHENOLS (UG/L)PHYTOPLANKTON , TOTAL (CELLS PER ML)SOLIDS, SUM OF CONSTITUENTS,DISSOLVED


72672

565354452

4444

411745413652515151515152525252131051131315501220131329144843

1363

2510500

2007000

128

64000

14

415

5112

1200210160

13002823

16002300

21950300

3400182036

120066

110307

750032

380004030

183700

.00 0.00

.00 26.00

.00 90.00

.00 825.00

.50 4.50

.50 7.20

.00 140.00

.17 0.01

.44 0.01

.00 0.21

.20 0.00

.00 0.00

.10 0.01

.00 2.80

.00 0.20

.00 0.00

.00 63.00

.00 21.00

.00 90.00

.00 2.50

.00 2.80

.00 5.10

.00 200.00

.10 0.00

.00 0.60

.00 1.00

.00 <100.00

.00 130.00

.00 <3.00

.00 <20.00

.00 <25.00

.00 <10.00

.00 <10.00

.00 <10.00

.00 <20.00

.00 <1.00

.00 46.00

.00 0.00

.00 27.00

.00 532.00

.30 <0.50

.00 138.00

9.67507.97

--3150.18

8.87--

361.91--0.101.97

0.430.290.599.712.75

508.65120.2952.90

521.9610.099.18

422.10735.380.9011.245.31--

720.20----------------

915.247.29

3652.022062.14

--5485.95

PERCENT OF SAMPLESSTANDARD WERE LESS THANDEVIA- 95TION

8.25 231395.19 2542

--1291.02 6272

1.61 118

110.11 607--0.09 02.52 8

0.66 00.26 10.92 28.25 223.32 10

150.84 68728.52 16817.63 67

274.95 12405.69 264.20 19

319.11 1200313.77 1235

0.40 13.37 1713.46 50

300581.48 1940

18<20<2514466109307

1746.48 65498.18 32

6534.05 18649801.23 3758

112773.66 23699

75

INOR EQUAL

50


25SHOWN

5(MEDIAN)

.00

.00-.50.59.43.00-.31.75

.90

.00

.64

.70

.30

.50

.00

.00

.00

.80

.00

.00

.00

.77

.70

.00

.00

.00

.00

.00

.00

.00

.00

.50

.00

.00

.97

.00

.96

.00

.30

.99

16.37266.00

--3972.50

10.008.33

415.00--0.142.33

0.560.430.7011.003.65

560.00140.0056.00

660.0012.0012.00

615.00887.50

1.1713.752.50

<100.00890.00<3.00

<20.00<25.0052.50<10.0047.5020.003.50

605.0010.75

4175.002590.00

<0.502680.00

9.150.

--2685.

8.8.

340.--0.1.

0.0.0.6.1.

505.120.51.

420.7.7.

320.680.

0.11.1.

<100.520.<3.

<20.<25.36.

<10.22.

<20.2.

190.4.

1550.1720.

<0.805.

2500

00702000

0803

333122801500000000904000008000000000000000500000000000500000

5000

0.5084.00--

2355.007.758.00

290.00--0.030.71

0.060.060.105.400.70

460.00110.0046.00

350.006.706.50

232.50555.00

0.709.101.00

<100.00380.00<3.00

<20.00<25.0020.00

<10.0010.00

<20.001.00

105.002.75

505.001580.00

<0.50436.00

0.0032.00--

1511.506.127.68

203.00--0.010.46

0.000.000.013.460.29

292.0070.8030.80184.004.324.2234.00

396.000.375.061.00

<100.00210.00<3.00

<20.00<25.00<10.00<10.00<10.00<20.00<1.0046.000.00

56.601002.00

<0.50238.40




SAMPLE SIZE


54 -24350494949494950504145


,270.0676***.220.00428.00307.230*.630

6.95


LOGQKQQKKKKKKKQ

7,950151

***

-163-3.29-.293

-303*

126233


(r 2 ) OF F

0.64.61.08.11.12.96.88.70.80.19.89.59

0 .0001.0001.0509.0186.0133.0001.0001.0001.0001.0015.0001.0001


72868.0***

54.51.812.29

142*

2623,100

38


STATION NUMBER: 06316400 STATION NAME AND LOCATION: CRAZY WOMAN CREEK AT UPPER STATION, NEAR ARVADA, WYO. DRAINAGE AREA: 945 SQUARE MILES

DESCRIPTIVE




(AS N)NITROGEN, N02+N03 TOTAL (AS N)NITROGEN, N02+N03 DISSOLVED (AS N)PHOSPHORUS, TOTAL (AS P)CARBON, ORGANIC DISSOLVEDCARBON, ORGANIC SUSPENDEDHARDNESS (AS CAC03)CALCIUM DISSOLVEDMAGNESIUM, DISSOLVEDSODIUM, DISSOLVEDSODIUM ADSORPTION RATIOPOTASSIUM, DISSOLVEDCHLORIDE, DISSOLVEDSULFATE DISSOLVEDFLUORIDE, DISSOLVEDSILICA, DISSOLVEDARSENIC DISSOLVED (UG/L)BARIUM, DISSOLVED (UG/L)BORON, DISSOLVED (UG/L)CADMIUM DISSOLVED (UG/L)CHROMIUM, DISSOLVED (UG/L)COPPER, DISSOLVED (UG/L)IRON, DISSOLVED (UG/L)LEAD, DISSOLVED (UG/L)MANGANESE, DISSOLVED (UG/L)ZINC, DISSOLVED (UG/L)SELENIUM, DISSOLVED (UG/L)STREPTOCOCCI, FECAL (COLS/ 100 ML)PHENOLS (UG/L)PHYTOPLANKTON, TOTAL (CELLS PER ML)SOLIDS, SUM OF CONSTITUENTS,DISSOLVED


97952

555153764

4343

401779413287878787878787878787141251141414511122141432134982

1459

251640100

3180148

370003

000

215

1300320170310

516

1201500

1142

30049013202010053190203

22008

180002280

07860

.50 0.

.00 0.

.00 10.

. 00 445 .

.00 5.

.50 7.

.00 80.

.12 0.

.25 0.

.90 0.

.40 0.

.71 0.

.97 0.

.00 4.

.60 0.

.00 180.

.00 42.

.00 18.

.00 24.

.40 0.

.00 2.

.00 1.

.00 150.

.50 0.

.00 0.

.00 <1.

.00 <100.

.00 70.

.00 <2.

.00 <20.

.00 <20.

.00 <10.

.00 <20.

.00 <10.

.00 <20.

.00 <1.

.00 21.

.00 0.

.00 30.

.00 303.

.50 <0.

.00 8.

00680000606000010013

000000401000000000700090000030000000000000000000000000000000

5000

10.6680.02--

1709.829.88--

193.74 0.050.82

0.120.100.0810.171.14

690.69150.5176.57118.95

1.944.78

11.59718.05

0.408.24

170.20---- ----------

396.413.46

2763.671203.63

--459.53

PERCENT OF SAMPLES IN WHICH VALUESSTANDARD WERE LESS THAN OR EQUALDEVIA- 95TION

8.75 24211.07 286

__550.33 2800

1.79 128

53.34 266__0.05 00.63 2

0.12 00.17 00.15 04.06 191.29 5

246.58 116055.68 24628.79 13251.65 2260.63 22.33 813.12 20

290.22 13200.23 03.70 13

2300

67.07 3241320207853190203

514.08 20053.13 8

4064.89 12999448.76 2162

01208.75 2764

75 50TO THOSE

25SHOWN

5(MEDIAN)

.10

.40-.00.56.43.00-.20.32

.40

.71

.36

.80

.21

.00

.00

.00

.00

.86

.86

.00

.00

.86

.60

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.94

.50

.50

.99

19.0055.00--

2050.0011.308.30

230.00--0.070.91

0.190.110.0812.501.30

840.00180.0090.00140.00

2.205.9013.00

890.000.6011.001.25

<100.00180.005.50

<20.00<20.0040.00

<20.00120.0020.001.25

462.506.50

2950.001482.50

<0.50316.00

10.0026.00--

1630.009.808.20

200.00 0.030.72

0.070.060.0310.000.70

700.00150.0076.00

120.002.004.009.30

690.000.308.401.00

<100.00160.00<2.00

<20.00<20.0020.00

<20.0060.0020.001.00

215.003.00

970.001175.00

<0.50103.00

0.5014.00

1400.008.408.00

160.00--0.020.50

0.020.020.027.200.40

570.00120.0063.0089.001.603.307.20

560.000.305.70<1.00

<100.00140.00<2.00

<20.00<20.00<10.00<20.0038.75

<20.001.00

89.750.00

395.00984.25

<0.5043.00

0.004.86

665.006.907.70

96.80--0.000.31

0.000.000.014.920.10

248.0053.6026.2036.000.942.303.36

218.000.201.44

<1.00<100.00

92.00<2.00

<20.00<20.00<10.00<20.00<10.00<20.00<1.0024.250.00

80.00436.80

<0.5011.00




SAMPLE SIZE


544751515151515151514649


-899*.427.0848.0521.0895.000912**.486.809

2.00


LOGQKKKKKKKKKKQ

2,970*1.08

10.8-6.23

-20.6.560**

-64.0-76.251.6


(r 2 ) OF F

0.62.19.91.85.88.83.54.31.19.83.97.92

0.0001.0020.0001.0001.0001.0001.0001.0001.0014.0001.0001.0001


349*

74.519.310.321.8

.455^»-

*11871.2

104

39


STATION NUMBER: 06317000 STATION NAME AND LOCATION: POWDER RIVER AT ARVADA, WYO. DRAINAGE AREA: 6,050 SQUARE MILES



PERCENT OF SAMPLES INSTANDARD WERE LESS THAN

MINIMUM MEANSIZE


(AS N)NITROGEN, N02+N03 TOTAL (AS N)NITROGEN, N02+N03 DISSOLVED (AS N)PHOSPHORUS, TOTAL (AS P)HARDNESS (AS CAC03)CALCIUM DISSOLVEDMAGNESIUM, DISSOLVEDSODIUM, DISSOLVEDSODIUM ADSORPTION RATIOPOTASSIUM, DISSOLVEDCHLORIDE, DISSOLVEDSULFATE DISSOLVEDFLUORIDE, DISSOLVEDSILICA, DISSOLVEDARSENIC DISSOLVED (UG/L)BORON, DISSOLVED (UG/L)CADMIUM DISSOLVED (UG/L)CHROMIUM, DISSOLVED (UG/L)COPPER, DISSOLVED (UG/L)IRON, 'DISSOLVED (UG/L)LEAD, DISSOLVED (UG/L)MANGANESE, DISSOLVED (UG/L)ZINC, DISSOLVED (UG/L)SELENIUM, DISSOLVED (UG/L)COLIFORM, FECAL, (COLS/100 ML)PHENOLS (UG/L)PHYTOPLANKTON, TOTAL (CELLS PER ML)SOLIDS, SUM OF CONSTITUENTS,DISSOLVED


1051085873302

4085244

4228585858585858585858585

14111411118

102

85

127

301780080005500

1218

47600

20

015

28002201208501314

6301650

1181

840<2

<203

120

.00

.00

.00

.00

.10

.40

.80

.00

.01

.02

.00

.95

.70

.90

.00

.00

.00

.00

.00

.00

.00

.00

.50

.00

.00

.00

.00

.00

.00

.00

0.2.

20.1000.

2.1.7.

120.0.0.0.

0.0.0.

270.70.22.91.2.0.3.

270.0.0.1.

310.<2.

<20.3.

20.<2.00 <2.

<10<20

54000

40780003530

<064200

.00

.00

.00

.00

.00

.00

.00

.50

.00

<10,<20.

5.1,0,

5700.610.

<0.200.

0000000090206000010183

0100010000000020607000,400000,00,00,00,00,00,00,00,00,00,00,00,00,00

.50,00

11.65758.981171.552935.48

8.52----

249.61------

--0.430.47

654.82147.7562.87

422.317.257.48

284.84878.24

0.948.83----------------------8.50--

1968.35

--16409.50

DEVIA- 95TION

9.15 27.002408.08 3238.001912.36 7525.00907.17 5060.00

2.00 11.77__

8.7971.17 381.20------

--0.37 1.580.84 1.84

276.71 875.0032.64 200.0018.31 95.70

141.06 666.001.95 10.702.42 12.00

129.80 522.00264.27 1370.00

0.19 1.202.74 13.70----------------------12.62 40.00--

544.44 2831.00

--18304.03 58919.80

75OR EQUAL

50


25SHOWN

5(MEDIAN)

19.50398.501225.003500.00

9.90--8.40

283.50------

--0.580.56

735.00170.0076.50

495.008.409.20

360.001100.00

1.0510.00----------------------

11.75--

2325.00

--27999.94

12.00161.00500.00

2800.009.10--8.30

240.00------

--0.430.17

630.00150.0062.00

420.007.307.20

280.00860.00

0.908.50----------------------3.50--

1930.00

--6050.00

1.0083.5087.50

2450.007.18--8.10

215.00-- --

--0.170.05

550.00130.0053.50

350.006.405.80

200.00715.00

0.807.30----------------------0.75--

1675.00

--1720.00

0.0013.0034.50

1474.004.38--7.61

128.40------

--0.000.01

333.0082.3032.60149.00

3.504.13

61.20389.00

0.604.54----------------------0.00--

830.00

--262.40




SAMPLE SIZE


4868 -164646464646464646464


,230*

***.0174.0155.00192*.127.271.611

[NDEPENDEI VARIABLE

QLOGQ

QQKKKKKKKK

IT REGRESSION COEFFICIENT OF SIGNIFICANCE rnwoTAvrr DETERMINATION PROBABILITY CONSTANT (r2 j OF F

*5,540

***

10.9-36.3

1.58*

-88.392.3167

0.14.56.24.22.49.68.88.73.41.72.73.91

0.0087.0001.0001.0001.0001.0001.0001.0001.0001.0001.0001.0001


*610

***

10.551.01.04*

69.2147169


STATION NUMBER: 06320200 STATION NAME AND LOCATION: CLEAR CREEK BELOW ROCK CREEK, NEAR BUFFALO, WYO. DRAINAGE AREA: 322 SQUARE MILES



PERCENT OF SAMPLES IN WHICH VALUESSTANDARD WERE LESS THAN OR



(AS N)NITROGEN, N02+N03 TOTAL (AS N)NITROGEN, N02+N03 DISSOLVED (AS N)PHOSPHORUS, TOTAL (AS P)PHOSPHORUS, ORTHO, DISSOLVED (AS P)HARDNESS (AS CAC03)CALCIUM DISSOLVEDMAGNESIUM, DISSOLVEDSODIUM, DISSOLVEDSODIUM ADSORPTION RATIOPOTASSIUM, DISSOLVEDCHLORIDE, DISSOLVEDSULFATE DISSOLVEDFLUORIDE, DISSOLVEDSILICA, DISSOLVEDARSENIC DISSOLVED (UG/L)BORON, DISSOLVED (UG/L)CADMIUM DISSOLVED (UG/L)CHROMIUM, DISSOLVED (UG/L)COPPER, DISSOLVED (UG/L)IRON, DISSOLVED (UG/L)LEAD, DISSOLVED (UG/L)MANGANESE, DISSOLVED (UG/L)ZINC, DISSOLVED (UG/L)SELENIUM, DISSOLVED (UG/L)PHENOLS (UG/L)PHYTOPLANKTON, TOTAL (CELLS PER ML)SOLIDS, SUM OF CONSTITUENTS,DISSOLVED


1301167376747074743

6974

734

741

747474747474737474746

74666

726666

113

72

677

261240

261300

1798

240003

1000

5901306480

1127

4900

151

2105

<205

7003550

<201

1589000

913

<0674

.00

.00

.00

.00

.50

.40

.90

.00

.51

.94

.30

.20

.32

.33

.14

.00

.00

.00

.00

.50

.00

.60

.00

.50

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.50

.00

0.0015.00

.80130.008.001.507.50

20.000.010.000.15

0.000.000.010.14

47.0012.004.205.700.400.500.80

31.000.006.00

<1.004.00<2.00

<20.00<2.00

<60.00<2.0020.00

<20.00<1.001.00

1500.0072.00

<0.503.00

8.75124.54

3.88778.8610.673.42--

149.61--0.220.95

0.16--0.14--

339.9779.2834.4141.990.973.024.23

273.570.1810.70--

80.82----------------6.91--

541.19

--35.30

TION

7.75 23193.93 5063.80 11

265.58 11831.60 131.69 7

850.11 210__0.22 00.58 2

0.18 0__0.08 0--

125.14 52028.54 12013.17 5316.28 640.24 11.51 41.55 7

110.30 4520.07 01.89 14__

38.60 170____

183______--4.68 15__

197.67 820

__88.77 141

75EQUAL TO THOSE50 25

SHOWN5

(MEDIAN)

.00

.60

.00

.00

.10

.56

.87

.50-.69.37

.41-.29-.00.00.25.50.30.60.09.50.30.00-.00---.50----.00-.00

-.10

15.00102.254.10

968.7511.404.028.50

180.00--0.361.10

0.23--0.19--

430.00100.0043.0053.251.103.305.20

350.000.2012.00--

90.00------

97.50--------

10.00--

684.75

--26.50

8.0054.003.00

820.0010.602.908.15

167.50--0.140.81

0.10--0.12--

355.0083.5035.5044.001.002.804.20

280.000.2011.00--

80.00------

60.00--------6.00--

553.50

--14.00

0.5038.252.00

650.009.502.277.80

120.00--0.040.63

0.05--0.08--

280.0066.0027.7535.000.902.503.50

220.000.109.48--

60.00------

<60.00---- --4.00--

455.00

--7.00

0.0018.851.00

215.508.501.607.50

41.25--0.010.35

0.00--0.03--

80.0019.757.489.450.481.421.35

52.500.107.10--

25.00------

<60.00--------1.00--

123.55

--4.00




SAMPLE SIZE


66696767676767676766676524


-589*

.172

.443

.101

.0461

.0575

.000806*.00468.400.716*


LOGQLOGQ

KKKKKKKKKK

LOGQ

REGRESSION CONSTANT

*1,830

'13.8-8.73-.223

-1.88-3.19

.339*.507

-39.6-25.6

*


(r 2 )

0.08.63.86.91.91.89.91.86.20.71.96.96.49


OF F

0 .0252.0001.0001.0001.0001.0001.0001.0001.0001.0001.0001.0001.0001


*14919.538.78.954.515.13.0928*.852

24.040.2

*

41

Table 1.--Statistical summaries of water-quality data from the Powder River coaJ basin, based on samples collected from October 1, 1974, to September 30, I981--Continued

STATION NUMBER: 06320400 STATION NAME AND LOCATION: CLEAR CREEK AT UCROSS, WYO.DRAINAGE AREA: 409 SQUARE MILES



PERCENT OF SAMPLES IN WHICH VALUESSTANDARD WERE LESS THAN

MINIMUM MEANSIZE

TEMPERATURE (DEC C)STREAMFLOW, INSTANTANEOUS (FT3/S)TURBIDITY (NTU)SPECIFIC CONDUCTANCE (MICROS IEMENS)OXYGEN, DISSOLVEDOXYGEN DEMAND, BIOCHEMICAL, 5 DAYPH (UNITS)ALKALINITY (AS CAC03)NITROGEN, AMMONIA DISSOLVED (AS N)NITROGEN, AMMONIA TOTAL (AS N)NITROGEN, AMMONIA + ORGANIC TOTAL

(AS N)NITROGEN, N02+N03 TOTAL (AS N)NITROGEN, N02+N03 DISSOLVED (AS N)PHOSPHORUS, TOTAL (AS P)PHOSPHORUS, ORTHO, DISSOLVED (AS P)HARDNESS (AS CAC03)CALCIUM DISSOLVEDMAGNESIUM, DISSOLVEDSODIUM, DISSOLVEDSODIUM ADSORPTION RATIOPOTASSIUM, DISSOLVEDCHLORIDE, DISSOLVEDSULFATE DISSOLVEDFLUORIDE, DISSOLVEDSILICA, DISSOLVEDARSENIC DISSOLVED (UG/L)BORON, DISSOLVED (UG/L)CADMIUM DISSOLVED (UG/L)CHROMIUM, DISSOLVED (UG/L)COPPER, DISSOLVED (UG/L)IRON, DISSOLVED (UG/L)LEAD, DISSOLVED (UG/L)MANGANESE, DISSOLVED (UG/L)ZINC, DISSOLVED (UG/L)SELENIUM, DISSOLVED (UG/L)PHENOLS (UG/L)PHYTOPLANKTON, TOTAL (CELLS PER ML)SOLIDS, SUM OF CONSTITUENTS,


1181006669655967662

6163

641

641

656565656566666666656

66666

646664

111

65

670

301410

951600

1479

290017

0000

75017079

1202

1917

6700

151

2105

<207

580265020

180

50001190

<0594

.00

.00

.00

.00

.20

.20

.20

.00

.34

.40

.60

.78

.40

.28

.10

.00

.00

.00

.00

.00

.00

.00

.00

.50

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.50

.00

0.006.600.00

205.007.801.407.40

48.000.050.010.38

0.000.400.010.1081.0020.007.509.800.500.501.30

50.000.102.60

<1.0030.00<2.00

<20.00<2.00

<10.00<2.0010.00

<20.00<1.001.00

5000.00131.00

<0.503.00

10.50123.24

9.781015.07

10.213.02--

194.00--0.141.08

0.13--0.08--

450.17101.9747.6458.901.184.475.04

371.330.208.54--

114.09----------------15.00--

712.32

--73.14

DEVIA- 95 75TION

823413

31511-

58-01

0-0-

150331622022

13602-

41--------

24-

243

-116

.59 24

.21 659

.41 28

.19 1535

.32 12

.38 68

.88 270-.20 0.05 3

.17 0-.05 0-.80 691.06 147.87 76.09 94.29 1.23 6.50 9.93 606.07 0.78 14-.10 190---

232----.02 80-.34 1121

-.57 401

.00

.90

.30

.00

.54

.00

.76

.00-.43.06

.48-.22-.00.00.50.50.57.63.21.00.30.00-.00---.50----.00-.00

-.65

18.1379.5011.00

1200.0011.253.808.30

240.00--0.161.20

0.17--0.09--

545.00120.0058.0072.001.405.205.60

450.000.2010.00--

140.00------

100.00--------

12.00--

860.00

--61.75

OR EQUAL TO THOSE50 25

(MEDIAN)

10.25 0.8849.50 26.355.00 2.15

1090.00 880.0010.00 9.352.50 2.008.10 7.90

210.00 167.50--0.08 0.040.82 0.62

0.05 0.01--0.07 0.03--

480.00 370.00110.00 87.0050.00 38.5061.00 47.501.20 1.104.30 3.404.95 3.78

385.00 315.000.20 0.208.40 6.60--

110.00 97.50------

50.00 30.00--------4.00 3.00--

729.00 589.00

--34.00 12.75

SHOWN5

0.009.621.00

360.008.201.607.50

68.35--0.010.48

0.00--0.01--

136.0031.9013.6016.300.601.941.84

100.000.103.60--

43.50------10.00--------1.00--

215.60

--6.65




SAMPLE SIZE


54575454545454545454545416


-681*

.177

.457

.0988

.0514

.0679

.000864

.00368*.418.748*


QLOGQ

KKKKKKKKKKQ

2,*

16014.6-6.423.15-3.71-9.27

.315

.505*

-47.2-36.5

*


(r 2 ) OF F

0 .33.80.89.92.89.92.94.90.76.10.92.94.43

0.0001.0001.0001.0001.0001.0001.0001.0001.0001.0192.0001.0001.0055

STANDARD ERROR OFESTIMATE

*14720.644.911.14.925.78.0930.680*

40.864.1

*

42

Table 1.--Statistical summaries of water-quality data from the Powder River coal jbasin, based on samples collected from October 2, 2974, to September 30, 2982--Continued

STATION NUMBER: 06323500 STATION NAME AND LOCATION: PINEY CREEK AT UCROSS, WYO.DRAINAGE AREA: 267 SQUARE MILES



PERCENT OF SAMPLES INSTANDARD WERE LESS THAN OR

MINIMUM MEANSIZE


(AS N)NITROGEN, N02+N03 TOTAL (AS N)NITROGEN, N02+N03 DISSOLVED (AS N)PHOSPHORUS, TOTAL (AS P)PHOSPHORUS, ORTHO, DISSOLVED (AS P)CARBON, ORGANIC DISSOLVEDCARBON, ORGANIC SUSPENDEDHARDNESS (AS CAC03)CALCIUM DISSOLVEDMAGNESIUM, DISSOLVEDSODIUM, DISSOLVEDSODIUM ADSORPTION RATIOPOTASSIUM, DISSOLVEDCHLORIDE, DISSOLVEDSULFATE DISSOLVEDFLUORIDE, DISSOLVEDSILICA, DISSOLVEDARSENIC, DISSOLVED (UG/L)BORON, DISSOLVED (UG/L)CADMIUM DISSOLVED (UG/L)CHROMIUM, DISSOLVED (UG/L)COPPER, DISSOLVED (UG/L)IRON, DISSOLVED (UG/L)LEAD, DISSOLVED (UG/L)MANGANESE, DISSOLVED (UG/L)ZINC, DISSOLVED (UG/L)SELENIUM, DISSOLVED (UG/L)COLIFORM, FECAL, (COLS/100 ML)PHENOLS (UG/L)PHYTOPLANKTON, TOTAL (CELLS PER ML)SOLIDS, SUM OF CONSTITUENTS,DISSOLVED


7067656866

16664

15664

611

58166

6464646464646464646417561717175817171717871

64

175

231090

331160

1229

280003

000090

48010056741

166

3700

146

1403

<20<20990274040

12000

232300769

2217

.00

.00

.00

.00

.80

.30

.15

.00

.04-78.30

.82

.18

.70

.02

.00

.90

.00

.00

.00

.00

.50

.00

.20

.00

.30

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.20

.00

0.0010.000.00

120.007.102.307.30

35.000.040.000.13

0.000.180.000.023.300.30

49.0012.003.904.900.301.101.00

20.000.102.70

<1.00<20.00<2.00

<20.00<20.00<10.00<2.00

<10.00<20.00<1.0018.001.00

2300.0077.00

<0.5011.00

10.52140.69

3.88581.6210.05----

161.11--0.080.67

0.13--0.05------

247.0056.0325.9232.630.874.612.60

151.800.178.05--------------------------

378.59

----

DEVIA- 95TION

8.22 22221.59 736

5.39 15238.95 1002

1.33 12__

858.24 260__0.11 00.50 1

0.15 0__0.10 0--__--

102.04 42521.85 9611.73 4616.65 620.30 12.59 81.10 4

86.09 3050.06 02.96 12

6104

3<20<20290274040

1------

167.45 686

2--

75EQUAL50


25SHOWN

5(MEDIAN)

.22

.40

.00

.00

.40-.60.00-.18.45

.40-.20----.00.25.75.50.37.07.65.00.30.75.00.50.00.00.00.00.00.00.00.00---.50

.20-

18.00127.004.10

747.5010.85--8.30

196.75--0.100.84

0.20--0.05----

--310.0072.0032.7542.751.105.783.40

220.000.2011.001.00

77.502.00

<20.00<20.00100.00

4.7520.0020.00<1.00------

488.00

<0.50--

12.0054.002.00

595.0010.20--8. 10

160.00--0.050.61

0.06--0.02----

--260.0058.5027.0031.500.904.202.40

140.000.207.80

<1.0060.00<2.00

<20.00<20.0065.003.50

<10.00<20.00<1.00------

392.00

<0.50--

1.0026.001.00

396.259.00--7.78

120.75--0.030.38

0.03--0.02----

--160.0038.0016.2521.000.702.951.83

93.750.105.35<1.0050.00<2.00

<20.00<20.0037.50<2.00

<10.00<20.00<1.00------

247.75

<0.50--

0.0015.601.00

199.007.73--7.47

62.00--0.010.17

0.01--0.01----

--72.7518.006.737.600.401.731.10

26.000.103.25

<1.00<20.00<2.00<20.00<20.00<10.00<2.00

<10.00<20.00<1.00------

106.50

<0.50--




SAMPLE SIZE


576056565656565656565656


**0.197.407.0867.0463.0662.00120.00705.00337.347.672


LOGQLOGQ

KKKKKKKKKK

*-'.

44.49.685.48-1.09-5.74

.183

.273

.559-48.1-12.7


(r 2 )

0.21.24.70.93.92.91.90.84.90.71.90.95


OF F

0 .0004.0001.0001.0001.0001.0001.0001.0001.0001.0001.0001.0001


.V-t-

28.925.85.943.264.94.118.525.491

26.136.0

A3


STATION NUMBER: 06324000 STATION NAME AND LOCATION: CLEAR CREEK NEAR ARVADA, WYO.DRAINAGE AREA: 1,110 SQUARE MILES




MINIMUM MEANSIZE

TEMPERATURE (DEC C)STREAMFLOW, INSTANTANEOUS (FT3/S)TURBIDITY (NTU)SPECIFIC CONDUCTANCE (MICROS IEMENS)OXYGEN, DISSOLVEDOXYGEN DEMAND, BIOCHEMICAL, 5 DAYPH (UNITS)ALKALINITY (AS CAC03)NITROGEN, AMMONIA TOTAL (AS N)NITROGEN, AMMONIA + ORGANIC TOTAL


MECURY DISSOLVED (UG/L)SEDIMENT, SUSPENDED

2642506686813284835869

69207454

83838383838383838381167

16161918191619193

101

82

19197

2935405002200

1358

39003

13090

97023099

2003

1148

9300

152

9803

<207

701360202

9618

67001650

21670

.00

.00

.00

.00

.00

.60

.80

.00

.42

.30

.20

.60

.33

.20

.80

.00

.00

.00

.00

.20

.00

.00

.00

.80

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.40

.00

0.004.401.00

230.007.101.007.30

50.000.010.10

0.000.000.005.500.30

92.0023-007.609.600.401.601.80

60.000.100.00<1.0060.002.00

<20.00<2-00

<10.00<2.00

<10.00<20.00<1.0026.000.00

6700.00143.00

<0.507.00

7.91266.8525.59

1160.3510.132.53

198.770.090.80

0.260.330.05----

490.75109.5153.1878.141.494.875.67

444.770.426.54 -- ---- -- --4.70--

826.02

141.33

DEVIA- 95TION

8.36 23461.74 131664.71 91

387.25 18821.55 121.06 4

858.92 3160.08 00.50 1

0.29 00.81 30.05 0----

168.76 83236.94 18820.09 9337.14 1580.50 22.02 95.54 14

184.46 8300.14 03.76 13

1--

3<20

7701360202

--5.76 18

310.07 1495

2253.90 631

75OR EQUAL

50


25SHOWN

5(MEDIAN)

.87

.00

.25

.50

.80

.69

.50

.00

.26

.65

.86

.46

.18--.00.00.60.00.48.00.80.00.70.00.00-.00.00.00.00.00.00.00.00-.00-.50

.40

.80

14.00194.2520.00

1357.5011.353.078.30

230.000.110.93

0.480.250.06----

590.00130.0064.0093.001.706.006.10

530.000.508.901.00--2.00

<20.004.00

40.005.00

40.00<20.00

1.25--7.25

987.75

<0.50108.00

4.25105.009.50

1130.0010.002.408.20

197.000.070.67

0.130.060.03 --

470.00110.0052.0073.001.404.504.40

420.000.406.50<1.00--

<2.00<20.00

3.0030.002.00

30.00<20.00

1.00--2.00

785.50

<0.5056.00

0.0076.005.00

957.508.851.758.00

160.000.040.57

0.050.000.02----

390.0088.0041.0054.001.203.703.60

340.000.303.45<1.00--

<2.00<20.00<2.0020.00<2.00

<10.00<20.00<1.00 0.75--

631.75

<0.5028.00

0.0028.551.35

347-007.711.007.60

80.600.010.22

0.010.000.01--

154.0037.2014.6018.200.701.901.90

94.800.200.95<1.00--

<2.00<20.00<2.00

<10.00<2.00

<10.00<20.00<1.00--0.00--

227.20

<0.5017.00




SAMPLE SIZE


59797373737373737373737221


-672*

.113

.389

.0752

.0494

.0863

.00114**.445.729.505


LOGQLOGQ

KKKKKKKQKKQ

*2,500

65.038.320.9-3.69

-23.1.157**

-72.8-25.2

6.64


(r 2 ) OF F

0.04.64.68.87.75.89.86.77.48.17.91.91.83

0 .116.0001.0001.0001.0001.0001.0001.0001.0001.0003.0001.0001.0001


*22328.054.915.96.3212.4

.224**

52.382.261.4

44

Table 1.--Statistical summaries of water-quality data from the Powder River coal basin, based on samples collected from October I, 1974, to September 30, 1981 --Continued

STATION NUMBER: 06324500 STATION NAME AND LOCATION: POWDER RIVER AT MOORHEAD, MONT.DRAINAGE AREA: 8,088 SQUARE MILES


WATER QUALITY CONSTITUENT JAM- ^^

SIZE

TEMPERATURE (DEC C) 109STREAMFLOW, INSTANTANEOUS (FT3/S) 104TURBIDITY (NTU)SPECIFIC CONDUCTANCE (MICROSIEMENS)OXYGEN, DISSOLVEDOXYGEN DEMAND, BIOCHEMICAL, 5 DAYPH (UNITS)ALKALINITY (AS CAC03)NITROGEN, AMMONIA TOTAL (AS N)NITROGEN, AMMONIA + ORGANIC TOTAL

(AS N)NITROGEN, N02+N03 TOTAL (AS N)NITROGEN, N02+N03 DISSOLVED (AS N)PHOSPHORUS, TOTAL (AS P)CARBON, ORGANIC DISSOLVEDCARBON, ORGANIC SUSPENDEDHARDNESS (AS CAC03)CALCIUM DISSOLVEDMAGNESIUM, DISSOLVEDSODIUM, DISSOLVEDSODIUM ADSORPTION RATIOPOTASSIUM, DISSOLVEDCHLORIDE, DISSOLVEDSULFATE DISSOLVEDFLUORIDE, DISSOLVEDSILICA, DISSOLVEDARSENIC DISSOLVED (UG/L)BARIUM, DISSOLVED (UG/L)BORON, DISSOLVED (UG/L)CADMIUM DISSOLVED (UG/L)CHROMIUM, DISSOLVED (UG/L)COPPER, DISSOLVED (UG/L)IRON, DISSOLVED (UG/L)LEAD, DISSOLVED (UG/L)MANGANESE, DISSOLVED (UG/L)ZINC, DISSOLVED (UG/L)SELENIUM, DISSOLVED (UG/L)PCB, TOTAL (UG/L)PCB, TOTAL IN BOTTOM MATERIAL (UG/KG)SOLIDS, SUM OF CONSTITUENTS,DISSOLVED

MECURY DISSOLVED (UG/L)SEDIMENT, SUSPENDED

5391894390908090

861

87148

89898989898990898890132

87131315841513151486

88

1553

26.0012100.0033000.003490.00

13.206.208.80

370.000.36

52.00

2.200.029.5019.0011.00

930.00220.00110.00490.00

8.9017.00

350.001300.00

0.8020.001.00

70.00890.00

2.00<20.00<20.00250.0010.0030.00180.00

3.000.000.00

2510.00

4.0049700.00


MINIMUM MEAN

0.0020.007.00

730.004.000.407.50

84.000.000.14

0.000.020.013.900.50

190.0050.0016.0074.001.703.100.10

290.000.202.90<1.0035.0070.00<2.00

<20.00<20.00<10.00<2.00

<10.00<20.00<1.000.000.00

570.00

<0.5076.00

10.10795.751345.132072.36

9.372.33--

221.080.092.84

0.36--0.799.20--

571.35131.5358.99

254.394.586.90

149.92675.96

0.467.68----

312.87--------------------

1422.36

--4853.71

DEVIA- 95 TION

8.57 24.1662.20 3652.4568.35 4740.562.52 2998.

2.04 12.1.27 5.

8.58.16 339.0.07 0.6.07 10.

0.34 0.--1.40 2.4.23 19.__

142.51 825.31.63 190.16.58 87.88.00 420.1.22 6.2.00 11.

67.67 253.204.13 1045.

0.13 0.2.69 13.

1.__

136.30 606.2.

<20.<20.110.10.30.

180.3.

____

386.36 2173.

4.8886.92 27139.

25490000554660002484

74

9800

0000000070005000750000

000000000000000000

00

0088

75

18.00578.751100.002450.00

11.253.008.40

250.000.132.85

0.50--0.86

12.25--

665.00150.0069.00

305.005.307.60

190.00765.00

0.508.901.00--

350.00<2.00

<20.00<20.0040.003.0010.0020.002.00----

1627.50

<0.504965.00


50 25 (MEDIAN)

9.00307.00300.00

2150.009.502.208.20

217.000.071.10

0.31--0.318.70--

570.00130.0060.00

260.004.606.50

160.00650.00

0.407.051.00--

300.00<2.00

<20.00<20.0030.002.00

<10.0020.002.00----

1430.00

<0.501720.00

0.183.50.

1700.7.1.7.

189.0.0.

0.--0.5.--

485.110.48.

195.3.5.

100.540.

0.6.1.--

230.<2.

<20.<20.<10.<2.

<10.<20.

1.----

1130.

<0.339.

50000000655090000467

17

0993

0000000090850000400000

000000000000000000

00

5000

SHOWN5

0.0058.0013.50

978.006.200.407.60

118.200.010.27

0.01--0.033.90--

315.0078.5029.0090.002.304.00

39.60350.00

0.304.16

<1.00--

140.00<2.00

<20.00<20.00<10.00<2.00

<10.00<20.00<1.00--

690.65

<0.50127.60




SAMPLE REGRESSION SIZE COEFFICIENT


50848483838383838384838239

***0.210.0450.0236.140.00178*.0906.319.647*


LOGQLOGQLOGQ

KKKKKKKKK

LOGQ

REGRESSION CONSTANT

***

13438.09.76

-37.8.872*

-40.212.968.3

*


(r 2 ) OF F

0.02.30.26.72.67.67.83.67.34.60.72.87.16

0 .342.0001.0001.0001.0001.0001.0001.0001.0001.0001.0001.0001.0130


**

74.418.09.49

36.9.716*

42.0111141

*

45


STATION NUMBER: 06324890 STATION NAME AND LOCATION: DRAINAGE AREA:

LITTLE POWDER RIVER BELOW CORRAL CREEK NEAR WESTON, WYO. 204 SQUARE MILES




MINIMUM MEANSIZE

TEMPERATURE (DEC C)STREAMFLOW, INSTANTANEOUS (FT3/S)TURBIDITY (NTU)SPECIFIC CONDUCTANCE (MICROS IEMENS)OXYGEN, DISSOLVEDOXYGEN DEMAND, BIOCHEMICAL, 5 DAYPH (UNITS)ALKALINITY (AS CAC03)NITROGEN, AMMONIA DISSOLVED (AS N)NITROGEN, AMMONIA TOTAL (AS N)NITROGEN, AMMONIA + ORGANIC TOTAL

(AS N)NITROGEN, N02-»-N03 TOTAL (AS N)NITROGEN, N02-»-N03 DISSOLVED (AS N)PHOSPHORUS, TOTAL (AS P)CARBON, ORGANIC DISSOLVEDCARBON, ORGANIC SUSPENDEDHARDNESS (AS CAC03)CALCIUM DISSOLVEDMAGNESIUM, DISSOLVEDSODIUM, DISSOLVEDSODIUM ADSORPTION RATIOPOTASSIUM, DISSOLVEDCHLORIDE, DISSOLVEDSULFATE DISSOLVEDFLUORIDE, DISSOLVEDSILICA, DISSOLVEDARSENIC DISSOLVED (UG/L)BARIUM, DISSOLVED (UG/L)BORON, DISSOLVED (UG/L)CADMIUM DISSOLVED (UG/L)CHROMIUM, DISSOLVED (UG/L)COPPER, DISSOLVED (UG/L)IRON, DISSOLVED (UG/L)LEAD, DISSOLVED (UG/L)MANGANESE, DISSOLVED (UG/L)ZINC, DISSOLVED (UG/L)SELENIUM, DISSOLVED (UG/L)STREPTOCOCCI FECAL (COLS/ 100 ML)PHENOLS (UG/L)PHYTOPLANKTON, TOTAL (CELLS PER ML)SOLIDS, SUM OF CONSTITUENTS,

DISSOLVEDMECURY DISSOLVED (UG/L)SEDIMENT, SUSPENDED

46453

40351

3937

13132

271330282136363536353736363636129

371313143713171312228

3536

1244

2440225

59201638

400009

000

241

3300420600600

75626

39001

242

1002200

8<2036100110360207

160026

220005710

<01120

.00

.00

.00

.00

.80

.00

.51

.00

.07

.41

.70

.42

.41

.19

.00

.20

.00

.00

.00

.00

.30

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.50

.00

0.000.011.00

1700.005.403.007.40

190.000.070.000.06

0.000.000.013.100.00

670.00130.0083.00100.00

1.303.005.10

690.000.401.70

<1.00<100.00280.00<2.00<20.00<20.00<10.00<29.0020.00<20.00<1.0020.000.000.00

1570.00

<0.506.00

7.6916.27--

2788.409.21----

292.05--0.080.96

0.070.080.0410.870.50

1375.28280.28168.29201.11

2.2733.2912.73

1483.330.7112.38----

1075.95----------

105.29----

287.50--

1447.742366.94

--78.52

DEVIA- 95TION

8.07 2264.34 133__

823.22 53352.25 13__

856.98 382__0.09 01.63 4

0. 10 00.12 00.04 04.17 200.32 1

467.53 270551.35 37796.25 464110.14 506

1.13 511.81 545.59 23

619.91 33050.14 06.69 23

2__

367.09 19308

<203692110

94.61 360207

368.21 1502--

3782.28 9199828.49 4893

<0166.57 183

75OR EQUAL

50


25SHOWN

5(MEDIAN)

.60

.70-.00.44-.40.00-.35.50

.37

.41

.15

.40

.19

.00

.50

.00

.50

.14

.20

.45

.00

.91

.15

.00-.00.00.00.00.00.00.00.00.00.49-.94.99

.50

.75

15.376.41--

3020.0010.40--8.00

335.00--0.080.85

0.060.130.0513.000.65

1500.00310.00190.00220.00

2.5039.5016.75

1575.000.8020.001.00--

1200.00<2.00

<20.00<20.0050.00<29.00170.0020.002.00

335.00--

1200.002485.00

<0.5077.00

4.000.56--

2600.008.90--7.90

290.00--0.050.68

0.010.050.0311.000.40

1300.00285.00150.00170.002.00

34.0011.00

1300.000.7011.001.00--

1100.00<2.00

<20.00<20.0040.00<29.0060.00

<20.001.00

150.00--

370.002200.00

<0.5048.50

0.000.23--

2278.757.90 7.60

246.50--0.020.50

0.010.000.028. 180.30

1125.00250.00120.00130.00

1.6029.508.38

1125.000.638.351.00--

865.00<2.00

<20.00<20.0030.00<29.0040.00

<20.00<1.0089.00--

90.001902.50

<0.5020.00

0.000.02--

1952.005.48--7.40

199.00--0.010. 16

0.000.000.013.820.01

695.50181.0090.20108.50

1.466.516.04

902.500.401.87

<1.00--

469.00<2.00

<20.00<20.00<10.00<29.0020.00

<20.00<1.0026.00--

16.001604.00

<0.509.00




SAMPLE SIZE


393635353435343635353534


*-t-

0.468*.114.113

..«_

*-,v

.712

.967*


QKKKKKKKKKKQ

REGRESSION CONSTANT

**

44.3*

-152-120

**iV

-542-382


(r 2 ) OF F

0.15.22.69.16.93.74.23.08.25.91.95.02

0 .0132.0037.0001.0190.0001.0001.0041.106.0025.0001.0001.475


* /v

265-V

25.557.8

/'?

186190

~v

46


STATION NUMBER: 06324925 STATION NAME AND LOCATION: LITTLE POWDER RIVER NEAR WESTON, WYO. DRAINAGE AREA: 540 SQUARE MILES




(AS N)NITROGEN, N02+N03 TOTAL (AS N)NITROGEN, N02+N03 DISSOLVED (AS N)PHOSPHORUS, TOTAL (AS P)PHOSPHORUS, ORTHO, DISSOLVED (AS P)CARBON, ORGANIC DISSOLVEDCARBON, ORGANIC SUSPENDEDHARDNESS (AS CAC03)CALCIUM DISSOLVEDMAGNESIUM, DISSOLVEDSODIUM, DISSOLVEDSODIUM ADSORPTION RATIOPOTASSIUM, DISSOLVEDCHLORIDE, DISSOLVEDSULFATE DISSOLVEDFLUORIDE, DISSOLVEDSILICA, DISSOLVEDARSENIC DISSOLVED (UG/L)BARIUM, DISSOLVED (UG/L)BORON, DISSOLVED (UG/L)CADMIUM DISSOLVED (UG/L)CHROMIUM, DISSOLVED (UG/L)COPPER, DISSOLVED (UG/L)IRON, DISSOLVED (UG/L)LEAD, DISSOLVED (UG/L)MANGANESE, DISSOLVED (UG/L)ZINC, DISSOLVED (UG/L)SELENIUM, DISSOLVED (UG/L)STREPTOCOCCI FECAL (COLS/ 100 ML)PHENOLS (UG/L)PHYTOPLANKTON, TOTAL (CELLS PER ML)SOLIDS, SUM OF CONSTITUENTS,DISSOLVED



67648

58501

54542

4344

3815431

362952525251515352525151191353192021531927201927104846

1957

29425035005400

1438

77000

15

1010

259

20004003301100

154964

28000

172

3001800

4<20<2518040

480327

32000045

88004450

09130

.00

.00

.00

.00

.50

.10

.80

.00

.02

.39

.00

.00

.93

.40

.01

.00

.50

.00

.00

.00

.00

.00

.00

.00

.00

.90

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.70

.00

MINIMUM MEAN

0.000.009.00

350.005.003.107.00

57.000.010.010.39

0.000.000.000.010.500.10

59.0014.005.9039.001.705.801.50

100.000.101.20

<1.00<100.00

70.00<2.00

<20.00<25.00<10.00<29.000.00

<20.00<1.0021.000.000.00

222.00

<0.5048.00

9.91151.12

--2955.78

9.64----

391.68 0.061.25

0.090.100.09--

12.191.52

737.81137.6295.95

474.437.71

18.0313.75

1341.920.538.01----

321.70----------

121.89--

12189.899.10

1364.652334.17

--653.63

STANDARD DEVIA TION

8.93632.90

--1328.29

2.16--

191.90--0.092.22

0.180.240.22--5.162.12

424.1872.7863.89

263.763.599.8410.49

703.240.184.14----

361.34 --------

113.76--


24.501515.73

--4858.49

13.13--8.50

730.00 0.354.02

0.500.930.42

23.308.35

1805.00280.00229.00910.0014.0046.6037.00

2600.000.8416.402.00

300.001449.99

4.00<20.00<25.00113.0040.00

440.0032.007.00

6159.09193037.0613.89

1841.801192.50

--1584.30

45.005924.984256.00

0.704720.98

75

18.0017.75--

3950.0011.33--8.30

500.00--0.051.00

0.050.090.06

15.001.55

940.00180.00120.00660.0011.0020.0016.00

1800.000.7010.001.00

100.00320.00<2.00

<20.00<25.0050.00<29.00160.0020.001.00

400.0011.00

1375.003172.50

<0.50364.00

50 (MEDIAN)

9.001.45--

3125.009.55--8.15

405.00 0.040.79

0.020.020.04--

11.500.70

750.00135.00100.00480.00

7.7017.0013.00

1450.000.607.401.00

<100.00220.00<2.00

<20.00<25.0030.00

<29.0090.00<20.00<1.00160.004.00

640.002565.00

<0.50153.00

25

0.500.32--

1950.008.00--7.98

255.00--0.020.60

0.010.000.02 8.730.55

502.5083.7550.25

260.004.9011.507.15

717.500.405.601.00

<100.00165.00<2.00

<20.00<25.0020.00<29.0060.00<20.00<1.0087.001.50

217.501255.00

<0.5091.50

5

0.000.01--

462.556.30--7.45

59.25--0.010.40

0.010.000.01--2.790.15

101.9522.2511.1651.001.986.112.97

149.000.201.46

<1.00<100.0087.00<2.00

<20.00<25.00<10.00<29.000.80

<20 . 00<1.0025.800.0037.70

271.10

<0.5057.20

47


STATION NUMBER: 06324925 STATION NAME AND LOCATION: LITTLE POWDER RIVER NEAR WESTON, WYO.--Continued



SPECIFIC CONDUCTANCE (MICROSIEMENS)ALKALINITY (AS CAC03)HARDNESS (AS CAC03)CALCIUM, DISSOLVEDMAGNESIUM, DISSOLVEDSODIUM, DISSOLVEDSODIUM ADSORPTION RATIOPOTASSIUM, DISSOLVEDCHLORIDE, DISSOLVEDSULFATE, DISSOLVEDSOLIDS, SUM OF CONSTITUENTS, DISSOLVEDSEDIMENT, SUSPENDED

555048484847474948484247

REGRESSION INDEPENDENT REGRESSION COEFFICIENT VARIABLE CONSTANT

*0.126.235.0366.0348.180.00204* n

.497

.828*

LOGQKKKKKKKKKKK

*19.029.526.1-8.41

-60.31.67*U

*-148-138

*


(r 2 ) OF F

0.27.82.57.50.54.87.60.28.32.91.98.29

0.0001.0001.0001.0001.0001.0001.0001.0001.0001.0001.0001.0001


*84.0

28451.744.998.82.32

»»_

*218168

*

Table 1.--Statistical summaries of water-quality data from the Powder River coal jbasin, based on samples collected from October 1, 1974, to September 30, 1981 --Continued

STATION NUMBER: 06324970 STATION NAME AND LOCATION: LITTLE POWDER RIVER ABOVE DRY CREEK NEAR WESTON, WYO. DRAINAGE AREA: 1,235 SQUARE MILES




(AS N)NITROGEN, N02 + N03 TOTAL (AS N)NITROGEN, N02+N03 DISSOLVED (AS N)PHOSPHORUS, TOTAL (AS P)CARBON, ORGANIC DISSOLVEDCARBON, ORGANIC SUSPENDEDHARDNESS (AS CAC03)CALCIUM DISSOLVEDMAGNESIUM, DISSOLVEDSODIUM, DISSOLVEDSODIUM ADSORPTION RATIOPOTASSIUM, DISSOLVEDCHLORIDE, DISSOLVEDSULFATE DISSOLVEDFLUORIDE, DISSOLVEDSILICA, DISSOLVEDARSENIC DISSOLVED (UG/L)BARIUM, DISSOLVED (UG/L)BORON, DISSOLVED (UG/L)CADMIUM DISSOLVED (UG/L)CHROMIUM, DISSOLVED (UG/L)COPPER, DISSOLVED (UG/L)IRON, DISSOLVED (UG/L)LEAD, DISSOLVED (UG/L)MANGANESE, DISSOLVED (UG/L)ZINC, DISSOLVED (UG/L)SELENIUM, DISSOLVED (UG/L)COLIFORM, FECAL (COLS./ 100 ML)STREPTOCOCCI FECAL (COLS/ 100 ML)PHENOLS (UG/L)PHYTOPLANKTON, TOTAL (CELLS PER ML)SOLIDS, SUM OF CONSTITUENTS,

(DISSOLVED)MERCURY DISSOLVED (UG/L)SEDIMENT, SUSPENDED

SAM PLE SIZE

179186108125112

5121120

5100105

8418

1072018

120119120119119120120120120120326

117323234

1163140323248

1375

120

32117

MAXIMUM

30.004210.005500.005500.00

14.203.208.80

600.000.020.7211.00

1.400.521.60

30.002.80

1500.00320.00200.00770.0012.0043.00

580.002400.00

2.4020.003.00

100.001200.00

5.00<20.0035.00

1100.0029.00

510.0040.003.00

780.00380.0034.00

81000.003910.00

<0.5013100.00

MINIMUM

0.000.001.00

690.005.502.607.50

77.000.010.010.21

0.000.000.003.800.10

41.0036.0010.0078.002.204.903.50

240.000.202.00

<1.0010.002.00

<2.00<20.00<10.00<10.00<15.00<10.00<20.00<1.0022.0026.000.0082.00

440 . 00

<0.508.00

MEAN

11.7963.66309.12

2827.839.23----

316.99--0.081.51

0.120.120.1113.470.89

798.59157.3398.85384.76

5.8819.0216.61

1272.830.628.44----

284.89-------- ------ --7.23

6188.022145.67

--1061.14

STANDARD DEVIA TION

8.64356.601014.581056.64

1.99----

110.21--0.091.98

0.200.170.246.280.80

336.8260.5244.53153.45

1.766.67

52.11531.97

0.243.33----

226.37---------------- --9.74

10930.70807.58

--2696.42


25.50191.95

3049.984447.00

13.07--8.70

500.00--0.206.96

0.460.520.6329.602.80

1300.00260.00170.00630.00

8.7032.0023.95

2095.001.00

14.953.00--

831.005.00

<20.0034.70

218.0029.00

316.0040.003.00----

34.0019399.953286.50

<0.508873.99

75

198

633550

10-8

379-01

000171

1000200130490

72215

17000101-

2753

<20<1068

<15160201--

1165992775

<0225

.50

.65

.75

.00

.60-.30.75-.10.30

.15

.20

.07

.25

.48

.00

.00

.00

.00

.10

.00

.00

.00

.70

.00

.00-.00.00.00.00.00.00.00.00.00--.00.99.00

.50

.00

50 (MEDIAN)

12.003.20

35.003000.00

8.85--8.10

340.00--0.050.83

0.050.030.0513.000.55

785.00150.0097.00400.00

5.6018.0011.00

1300.000.608.001.00--

210.00<2.00

<20.00<10.0030.00

<15.00100.00<20.00

1.00----4.00

3700.002260.00

<0.50166.00

25

3.500.6410.00

2165.007.70--7.90

262.00--0.030.62

0.020.020.028.700.38

542.50110.0061.75280.005.0015.258.40

820.000.505.93<1.00--

170.00<2.00

<20.00<10.0020.00<15.0055.00

<20.001.00----1.00

1200.001590.00

<0.5084.00

5

0.000.024.00

907.506.27--7.60

110.00--0.010.41

0.010.000.013.910.10

210.5055.0019.0093.002.709.413.91

330.000.403.70

<1.00

99.00<2.00

<20.00<10.00<10.00<15.00<10.00<20.00<1.00----0.00

206.00591.00

<0.5031.30

49

Table 1.--Statistical summaries of water-quality data from the Powder River coal basin, based on samples collected from October I, 1974, to September 30, 1981 Continued

STATION NUMBER: 06324970 STATION NAME AND LOCATION: LITTLE POWDER RIVER ABOVE DRY CREEK NEAR WESTON, WYO.--Continued



REGRESSION INDEPENDENT REGRESSION COEFFICIENT VARIABLE CONSTANT


(r 2 )

SIGNIFICANCE STANDARDPROBABILITY ERROR OF

OF F ESTIMATE

TURBIDITY (NTU) 103 * KSPECIFIC CONDUCTANCE (MICROSIEMENS) 122 * LOGQALKALINITY (AS CAC03) 116 0.0809 KHARDNESS (AS CAC03) 116 .260 KCALCIUM, DISSOLVED 115 .0502 KMAGNESIUM, DISSOLVED 116 .0348 KSODIUM, DISSOLVED 115 .141 KSODIUM ADSORPTION RATIO 115 .00130 KPOTASSIUM, DISSOLVED 116 * KCHLORIDE, DISSOLVED 116 * KSULFATE, DISSOLVED 116 .471 KSOLIDS, SUM OF CONSTITUENTS, DISSOLVED 116 .747 KSEDIMENT, SUSPENDED 57 * K

*91.1 67.8 16.8 1.08

-6.34 2.28**

-46.9 52.7

*

0.26 .13 .56 .63 .72 .64 .86 .55. .37 .05 .82 .89 .39

0.0001.0001.0001.0001.0001.0001.0001.0001.0001.0162.0001.0001.0001

74.820632.326.960.01.19

231269

50


STATION NUMBER: 06364700 STATION NAME AND LOCATION: ANTELOPE CREEK NEAR TECKLA, WYO. DRAINAGE AREA: 959 SQUARE MILES

DESCRIPTIVE


STATISTICS PERCENT OF SAMPLES INSAM- STANDARD WERE LESS THANPLE MAXIMUM MINIMUM MEANSIZE


(AS N)NITROGEN, N02+N03 TOTAL (AS N)NITROGEN, N02+N03 DISSOLVED (AS N)PHOSPHORUS, TOTAL (AS P)CARBON, ORGANIC DISSOLVEDCARBON, ORGANIC SUSPENDEDHARDNESS (AS CAC03)CALCIUM DISSOLVEDMAGNESIUM, DISSOLVEDSODIUM, DISSOLVEDSODIUM ADSORPTION RATIOPOTASSIUM, DISSOLVEDCHLORIDE, DISSOLVEDSULFATE DISSOLVEDFLUORIDE, DISSOLVEDSILICA, DISSOLVEDARSENIC DISSOLVED (UG/L)BARIUM, DISSOLVED (UG/L)BORON, DISSOLVED (UG/L)CADMIUM DISSOLVED (UG/L)CHROMIUM, DISSOLVED (UG/L)COPPER, DISSOLVED (UG/L)IRON, DISSOLVED (UG/L)LEAD, DISSOLVED (UG/L)MANGANESE, DISSOLVED (UG/L)ZINC, DISSOLVED (UG/L)SELENIUM, DISSOLVED (UG/L)STREPTOCOCCI FECAL, (COLS/ 100 ML)PHENOLS (UG/L)PHYTOPLANKTON , TOTAL (CELLS PER ML)SOLIDS, SUM OF CONSTITUENTS,DISSOLVED


5251

1474546463438

321635373445454545454545454545131144111315441219131319124445

1350

30805

2700118

44001

000

763

1200300110280

42131

12001

231

300540

52036

34033

79030

170026

200002120

01130

.00 0.

.00 0.

.00 5.

.00 435.

.70 5.

.30 7.

.00 56.

.13 0.

.50 0.

.29 0.

.11 0.

.30 0.

.00 5.

.00 0.

.00 140.

.00 33.

.00 13.

.00 28.

.00 1.

.00 5.

.00 3.

.00 150.

.10 0.

.00 4.

.00 <1.

.00 <100.

.00 50.

.00 <2.

.00 <20.

.00 <10.

.00 <10.

.00 <2.

.00 <10.

.00 <20.

.00 <1.

.00 20.

.00 1.

.00 39.

.00 272.

.40 <0 .

.00 5.

000200006030000016

000000201000000000005070002070000000000000000000000000000000

1000

12.527.33--

2156.818.68--

325.560.050.54

0.040.020.0411.980.49

910.22224.5684.60187.892.7114.4415.48

942.670.5615.74----

198.41---- ------

120.267.58

2013.501683.84

--111.68

DEVIA- 95TION

9.39 2714.60 37__

427.34 26381.71 11

891.73 4230.03 00.31 1

0.05 00.03 00.07 012.74 410.53 1

221.15 117051.21 28024.24 11042.96 2370.50 33.70 206.29 28

209.10 12000.17 05.36 23

1300

103.61 3975

2036

25833

79030

1173.07 700

8.13 264271.97 16474362.70 2087

0177.35 411

75OR EQUAL

50


25SHOWN

5(MEDIAN)

.50

.00-.00.57.27.00.11.40

.16

.11

.28

.80

.65

.00

.00

.00

.00

.82

.40

.50

.00

.80

.00

.00

.00

.50

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.85

.00

.40

.85

19.756.50--

2440.0010.458.10

390.000.080.66

0.040.030.0313.000.63

1050.00255.00100.00220.00

3.0017.0019.50

1100.000.70

20.001.00

100.00240.00

2.00<20.00<10.0050.0012.50

680.0020.00<1.00120.0012.50

1400.001905.00

0.20112.75

13.750.32

2240.008.608.00

375.000.040.49

0.020.010.017.800.35

980.00240.0096.00

200.002.7015.0016.00

980.000.5017.001.00

<100.00220.00<2.00

<20.00<10.0030.002.50

415.00<20.00<1.0044.004.00

595.001790.00

<0.1055.50

3.000.15--

2120.007.407.80

250.000.020.33

0.010.000.016.400.20

820.00210.0073.50170.002.4012.0010.50

860.000.5011.00<1.00

<100.00110.00<2.00

<20.00<10.0020.00<2.0020.00

<20.00<1.0039.002.25

185.001595.00

<0.1034.25

0.330.03--

1090.006.107.40

131.000.000.22

0.000.000.005.470.10

387.0099.4019.5089.901.967.486.62

433.000.306.08<1.00

<100.0060.00<2.00

<20.00<10.00<10.00<2.00

<10.00<20.00<1.0020.001.00

58.00779.70

<0.1015.65




SAMPLE SIZE


464645454545454545454544


-34.8-90.0

.476

.113

.0466

.0907*

-3.21*.468.834

8.19


QLOGQ

KKKKK

LOGQKKKQ

REGRESSION CONSTANT

2,320308

-112-18.5-15.4-6.74*

13.9*

-60.6-106

45.6


(r 2 ) OF F

0.65.80.85.90.68.82.36.63.16.92.97.68

0 .0001.0001.0001.0001.0001.0001.0001.0001.0065.0001.0001.0001


25541.485.616.313.918.4*2.27*

59.759.054.8

51


STATION NUMBER: 06365300 STATION NAME AND LOCATION: DRY FORK CHEYENNE RIVER NEAR BILL, WYO. DRAINAGE AREA: 128 SQUARE MILES




MINIMUM MEANSIZE


(AS N)NITROGEN, N02+N03 TOTAL (AS N)NITROGEN, N02+N03 DISSOLVED (AS N)PHOSPHORUS, TOTAL (AS P)HARDNESS (AS CAC03)CALCIUM DISSOLVEDMAGNESIUM, DISSOLVEDSODIUM, DISSOLVEDSODIUM ADSORPTION RATIOPOTASSIUM, DISSOLVEDCHLORIDE, DISSOLVEDSULFATE DISSOLVEDFLUORIDE, DISSOLVEDSILICA, DISSOLVEDARSENIC DISSOLVED (UG/L)BORON, DISSOLVED (UG/L)CADMIUM DISSOLVED (UG/L)CHROMIUM, DISSOLVED (UG/L)COPPER, DISSOLVED (UG/L)IRON, DISSOLVED (UG/L)LEAD, DISSOLVED (UG/L)MANGANESE, DISSOLVED (UG/L)ZINC, DISSOLVED (UG/L)SELENIUM, DISSOLVED (UG/L)STREPTOCOCCI FECAL, (COLS/ 100 ML)PHENOLS (UG/L)SOLIDS, SUM OF CONSTITUENTS,DISSOLVED


54703131302827323030

301

31313231313032323232326

31666

32676715

30

638

25870320

26001378

62002

000

1700370190120

12373

15000

292

3005

<2012

120046

510602

15018

2450

115300

.00

.00

.00

.00

.20

.00

.20

.00

.20

.10

.41

.00

.15

.00

.00

.00

.00

.40

.00

.00

.00

.70

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.50

.00

0.0.1.

630.6.0.6.

110.0.0.

0.0.0.

260.71.20.27.0.9.5.

110.0.0.1.

90.<1.

<20.<10,20,

<10,8.

<20.<1.

150.1.

679,

<0,4,

00000000606080000045

00000000000000,5010,30,0010,50.00,00,00,00,00,00.00,00.00.00.00.00.00

.50

.00

8.4414.8816.11

1768.399.482.53--

324.060.060.84

0.04--0.04

942.58210.34103.6873.551.02

13.9218.12

731.250.5012.28--

150.97------

121.25------------

1375.43

--1458.74

DEVIA- 95TION

7.80 24.12104.04 18.8056.71 144.20463.06 2600.00

1.59 12.651.87 6.86

8.1699.06 516.000.04 0.170.38 1.93

0.08 0.25--0.03 0.11

303.04 1580.0066.63 357.0036.78 184.0022.28 114.000.22 1.403.42 21.7012.59 49.60

316.68 1435.000.13 0.705.46 23.80--

42.61 252.00------

207.95 640.99------------

417.89 2246.50

__3576.76 10198.43

75 50


25SHOWN

5(MEDIAN)

13.500.839.00

2140.0010.603.778.00

367.500.090.98

0.05--0.05

1100.00255.00120.0090.001.20

16.0023.00

945.000.6016.00--

170.00------

120.00------------

1600.00

--167.25

8.000.163.00

1800.009.801.607.80

325.000.060.76

0.03--0.03

900.00200.0096.0073.001.00

13.0015.50

670.000.5011.50--

150.00------

70.00------------

1290.00

--47.00

1.000.042.00

1460.008.071.207.60

280.000.040.58

0.00--0.02

770.00165.0082.0058.000.8811.0011.25

525.000.509.28--

130.00------

40.00------------

1095.00

--25.00

0.000.001.00

852.006.870.737.04

116.500.000.46

0.00--0.01

410.0096.3535.0033.600.619.495.30

201.000.173.16--

90.00------

20.00------------

752.70

--8.75




SAMPLE SIZE


31313130313030293131312914


***0.617.135.0704.0415***.597.918*

[NDEPENDE1 VARIABLE

KQKKKKKKKKKKQ

JT RFrRFSSTON COEFFICIENT OF SIGNIFICANCErnwcTAWT DETERMINATION PROBABILITY CONSTANT (f2) QF F

***

-152-29.3-22.3-2.90***

-345-294

*

0.22.00.23.91.86.89.69.32.26.09.86.91.09

0 .0073.741.0066.0001.0001.0001.0001.0013.0033.0999.0001.0001.302


***

93.725.911.411.8***

111127

*

52


STATION NUMBER: 06365900 STATION NAME AND LOCATION: CHEYENNE RIVER NEAR DULL CENTER, WYO. DRAINAGE AREA: 1,527 SQUARE MILES




(AS N)NITROGEN, N02+N03 TOTAL (AS N)NITROGEN, N02+N03 DISSOLVED (AS N)PHOSPHORUS, TOTAL (AS P)CARBON, ORGANIC DISSOLVEDCARBON, ORGANIC SUSPENDEDHARDNESS (AS CAC03)CALCIUM DISSOLVEDMAGNESIUM, DISSOLVEDSODIUM, DISSOLVEDSODIUM ADSORPTION RATIOPOTASSIUM, DISSOLVEDCHLORIDE, DISSOLVEDSULFATE DISSOLVEDFLUORIDE, DISSOLVEDSILICA, DISSOLVEDARSENIC DISSOLVED (UG/L)BARIUM, DISSOLVED (UG/L)BORON, DISSOLVED (UG/L)CADMIUM DISSOLVED (UG/L)CHROMIUM, DISSOLVED (UG/L)COPPER, DISSOLVED (UG/L)IRON, DISSOLVED (UG/L)LEAD, DISSOLVED (UG/L)MANGANESE, DISSOLVED (UG/L)ZINC, DISSOLVED (UG/L)SELENIUM, DISSOLVED (UG/L)STREPTOCOCCI FECAL, (COLS/ 100 ML)PHENOLS (UG/L)PHYTOPLANKTON , TOTAL (CELLS PER ML)SOLIDS, SUM OF CONSTITUENTS,DISSOLVED


SAM PLE SIZE

94854571663769652

5455

501755161464646464646464646464156

6315151763142115159132264

1549

MAXIMUM

31.002030.001300.003800.00

12.005.608.70

527.000.030.572.20

0.800.080.60

41.001.40

1800.00400.00200.00500.00

5.1028.0042.00

2300.000.80

24.002.00

300.00270.00

5.0020.0036.00

540.0024.00

1100.0030.001.00

490.0013.00

9200.003810.00

1.5021500.00

MINIMUM

0.000.001.00

650.006.101.207.30

62.000.010.000.05

0.000.000.006.200.10

170.0041.0013.0045.001.501.704.40

190.000.002.70

<1.00<100.0050.00<2.00

<20.00<10.00<10.00<2.005.00

<20.00<1.0021.000.00

51.00348.00

<0.5013.00

MEAN

13.61.

109.2694.

9.2.--

262.--0.0.

0.0.0.

11.0.

1040.242.103.271.

3.15.23.

1281.0.

12.----

114.----------

316.------5.

2063.2109.

--1348.

984640080999

28

0976

060206933962914422614030874859

76

10

002319

24

STANDARD DEVIA TION

9289273779

11-

77-00

00080

345753895058

45103--

36-----

273---3

2564707

-3807

.35

.25

.50

.83

.51

.04-.32-.09.46

.11

.02

.10

.37

.36

.24

.72

.08

.28

.79

.05

.28

.61

.12

.68--.14-----.11---.56.72.19

-.04


28.12237.40985.003585.00

11.705.068.40

384.00--0.232.04

0.160.080.29

41.001.40

1500.00357.50150.00400.00

4.6523.0038.00

1900.000.6018.002.00--

188.005.0020.0036.00176.0024.00

1063.0030.001.00--13.00

8854.983047.50

1.5010114.97

75

21.2510.0065.00

3200.009.983.758.20

300.00--0.110.90

0.060.030.0611.000.55

1200.00290.00130.00327.50

4.1018.7528.00

1600.000.6015.001.00--

130.002.00

<20.00<10.0060.007.50

490.0030.00<1.00--7.00

3600.002530.00

<0.50245.50

50 (MEDIAN)

15.000.2620.00

3000.009.002.908.10

273.00--0.070.69

0.040.010.049.850.30

1100.00250.00110.00290.00

3.8516.0024.00

1400.000.5012.001.00--

110.00<2.00

<20.00<10.0040.002.00

240.00<20.00<1.00--5.00

975.002260.00

<0.5079.00


25

4.750.124.00

2200.008.152.157.90

220.00--0.030.48

0.010.000.017.580.10

815.00210.0076.25

202.503.2013.0018.50

960.000.4010.25<1.00--

90.00<2.00

<20.00<10.0020.00<2.00120.00<20.00<1.00--2.50

297.501645.00

<0.5033.00

5

0.000.041.12

910.006.301.207.40

103.00--0.000.19

0.000.000.006.200.10

325.0080.0026.7574.751.907.357.20

345.000.306.55<1.00--

60.00<2.00

<20.00<10.00<10.00<2.006.80

<20.00<1.00--0.00

64.35627.75

<0.5014.00

53


STATION NUMBER: 06365900 STATION NAME AND LOCATION: CHEYENNE RIVER NEAR DULL CENTER, WYO.--Continued




35615958585858585858585822

rOFFFTCTFNT OF REGRESSION INDEPENDENT REGRESSION nFTFRMTWATTnw COEFFICIENT VARIABLE CONSTANT utitKniWAHUN

**0.0813.425.0921.0459.117.000954

_'_

.00889

.547

.866-.272

QLOGQ

KKKKKKKKKKK

47-79

-17-37

1

-160-175871

*.4.1.0589.2.8.08

if

.294

0.46.45.68.93.91.89.93.92.40.77.90.93.61


OF F

0.0001.0001.0001.0001.0001.0001.0001.0001.0001.0001.0001.0001.0001


V;

45.94.24.13.26.

-.';

4.146203142

78130239

05


STATION NUMBER: 06375600 STATION NAME AND LOCATION: LITTLE THUNDER CREEK NEAR HAMPSHIRE, WYO. DRAINAGE AREA: 234 SQUARE MILES



PERCENT OF SAMPLES IN WHICH VALUESSTANDARD WERE LESS THAN OR EQUAL

MINIMUM MEANSIZE


(AS N)NITROGEN, N02+N03 TOTAL (AS N)NITROGEN, N02+N03 DISSOLVED (AS N)PHOSPHORUS, TOTAL (AS P)CARBON, ORGANIC DISSOLVEDCARBON, ORGANIC SUSPENDEDHARDNESS (AS CAC03)CALCIUM DISSOLVEDMAGNESIUM, DISSOLVEDSODIUM, DISSOLVEDSODIUM ADSORPTION RATIOPOTASSIUM, DISSOLVEDCHLORIDE, DISSOLVEDSULFATE DISSOLVEDFLUORIDE, DISSOLVEDSILICA, DISSOLVEDARSENIC DISSOLVED (UG/L)BARIUM, DISSOLVED (UG/L)BORON, DISSOLVED (UG/L)CADMIUM DISSOLVED (UG/L)CHROMIUM, DISSOLVED (UG/L)COPPER, DISSOLVED (UG/L)IRON, DISSOLVED (UG/L)LEAD, DISSOLVED (UG/L)MANGANESE, DISSOLVED (UG/L)ZINC, DISSOLVED (UG/L)SELENIUM, DISSOLVED (UG/L)STREPTOCOCCI FECAL, (COLS/ 100 ML)PHENOLS (UG/L)PHYTOPLANKTON, TOTAL (CELLS PER ML)SOLIDS, SUM OF CONSTITUENTS,DISSOLVED


4142

1332532302324

18102524192829282828282929292997

2899

10289

1399

137

2827

741

2617815

7500138

55014

000

304

1000180140750102544

22000

102

200220

22033

31016

26030

16800

5210003660

03790

.00

.00

.00

.00

.80

.50

.00

.80

.10

.33

.68

.49

.00

.40

.00

.00

.00

.00

.00

.00

.00

.00

.90

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.70

.00

0.000.0015.00

240.006.007.40

40.000.010.47

0.010.000.015.700.20

95.0022.009.7015.000.703.002.00

82.000.100.10<1.00

<100.0050.00<2.00

<20.00<20.00<10.00<10.00<10.00<20.00<1.0044.001.00

110.00167.00

<0.1017.00

11.1110.99--

2049.309.60--

228.370.211.15

0.090.110.1313.391.27

468.0493.3458.85

280.075.1512.9414.74

771.450.484.49----

123.21--__--____--__--

956.92__

2880.361403.41

__750.56

DEVIA- 95TION

8.66 2532.05 92--

1504.68 52772.24 13

8131.71 4620.45 10.81 3

0.10 00.20 00.14 04.88 271.20 4

245.23 94643.62 17534.65 126

207.26 6642.83 95.01 2312.17 44

555.29 18990.17 02.30 8____

45.95 215____

33297

__260

__--

1870.98 6800__

4284.33 15869928.80 3275

__1121.35 3118

75 50TO THOSE

25SHOWN

5(MEDIAN)

.35

.65-.46.56.44.00.72.80

.33

.68

.48

.00

.40

.00

.00

.50

.50

.59

.65

.00

.99

.85

.85--.50--.00.00-.00--.00-.86.99

-.00

19.255.27--

2915.0011.708.20

342.500.131.28

0.120.120.1515.751.50

670.00125.0089.00

485.008.1315.7520.00

1250.000.606.20----

150.00----

<20.0050.00--

130.00----

1140.00--

3475.002150.00

--1063.00

12.000.26--

1800.009.608.10

210.000.070.90

0.050.060.0814.001.00

455.0096.0056.50240.00

5.1513.5011.00

680.000.404.80----

110.00----

<20.0035.00--

90.00----

230.00--

1250.001320.00

--148.00

2.000.04--

832.507.907.63

107.500.050.68

0.020.000.039.030.50

247.5054.5027.7593.502.659.635.90

280.000.402.50----

90.00----

<20.0020.00--

40.00----

80.00--

530.00535.00

--71.00

0.000.00--

262.406.037.40

43.850.010.47

0.010.000.016.050.20

115.2526.5012.5423.100.924.223.00

96.000.200.80----

54.50----

<20.00<10.00

--<10.00

----

44.00--

137.00201.40

--23.40




SAMPLE SIZE


302826272626262627272526


*

-,

*

J_

**


LOGQKKKK

LOGQLOGQ

QLOGQ

KKK

*

***** ! _u

*

*

*


(r 2 ) OF F

0.24.34.27.15.27.36.47.14.08.31.30.11

0 .0061.0011.0068.0455.0063.0012.0001.0624.151.0024.0043.103


55


STATION NUMBER: 06378300 STATION NAME AND LOCATION: LODGEPOLE CREEK NEAR HAMPSHIRE, WYO. DRAINAGE AREA: 354 SQUARE MILES




MINIMUM MEANSIZE

TEMPERATURE (DEC C)STREAMFLOW, INSTANTANEOUS (FT3/S)TURBIDITY (NTU)SPECIFIC CONDUCTANCE (MICROS IEMENS)OXYGEN, DISSOLVEDPH (UNITS)ALKALINITY (AS CAC03)NITROGEN, AMMONIA TOTAL (AS N)NITROGEN, AMMONIA + ORGANIC TOTAL

(AS N)NITROGEN, N02+N03 TOTAL (AS N)NITROGEN, N02+N03 DISSOLVED (AS N)PHOSPHORUS, TOTAL (AS P)CARBON, ORGANIC DISSOLVEDCARBON, ORGANIC SUSPENDEDHARDNESS (AS CAC03)CALCIUM DISSOLVEDMAGNESIUM, DISSOLVEDSODIUM, DISSOLVEDSODIUM ADSORPTION RATIOPOTASSIUM, DISSOLVEDCHLORIDE, DISSOLVEDSULFATE DISSOLVEDFLUORIDE, DISSOLVEDSILICA, DISSOLVEDARSENIC DISSOLVED (UG/L)BARIUM, DISSOLVED (UG/L)BORON, DISSOLVED (UG/L)CADMIUM DISSOLVED (UG/L)CHROMIUM, DISSOLVED (UG/L)COPPER; DISSOLVED (UG/L)IRON, DISSOLVED (UG/L)LEAD, DISSOLVED (UG/L)MANGANESE, DISSOLVED (UG/L)ZINC, DISSOLVED (UG/L)SELENIUM, DISSOLVED (UG/L)STREPTOCOCCI FECAL, (COLS/ 100 ML)PHENOLS (UG/L)PHYTOPLANKTON, TOTAL (CELLS PER ML)SOLIDS, SUM OF CONSTITUENTS,DISSOLVED


3031

1272025242323

181023232125242424242425252525108

259910247

119

10147

2425

731

23501330

5000139

140004

000

697

2703941

1200381433

160019

1020029011

<2070

5003

14070<1

130006

410003760

0713

.00

.00

.00

.00

.60

.10

.00

.32

.00

.11

.34

.41

.00

.40

.00

.00

.00

.00

.00

.00

.00

.00

.30

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.50

.00

0.000.00

330.00695.00

1.008.00

200.000.000.88

0.010.000.056.300.400.009.805.10

130.006.303.103.60

140.000.200.101.00

<100.0050.00<3.00

<20.00<25.0020.00<3.00

<10.00<20.00<1.0050.001.00

280.00431.00

<0.1019.00

10.8321.89--

2788.339.22--

689.170.101.71

0.030.050.15

21.402.97

124.4422.2417.83

625.4223.387.27

16.65767.20

0.553.183.00--

122.00------

161.67--------

1287.71--

10376.251846.52

208.10

DEVIA- 95TION

7.98 2293.42 296-_

1284.47 49843.06 13

9305.48 1332

0.08 00.72 3

0.03 00.10 00.09 014.72 632.42 7

53.38 2496.38 378.31 38

311.41 11759.04 363.12 148.50 32

428.88 16000.27 12.21 82.62 10_-

57.37 275----

70114.35 462

--140

--<1

3396.46 13000--

12375.68 40499922.94 3640

-_182.20 633

75OR EQUAL

50


25SHOWN

5(MEDIAN)

.72

.40-.00.59.07.50.30.76

.11

.34

.39

.40

.39

.00

.00

.75

.00

.50

.00

.10

.00

.24

.34

.00-.00--.00.50-.00-.00.00-.97.00

-.20

18.250.82--

3740.0011.508.80

895.000.132.20

0.050.040.17

27.004.30

150.0026.5021.00

875.0030.758.13

25.001150.00

0.704.353.25--

145.00----

<25.00227.50

--70.00--

<1.00630.00

15500.002630.00

--245.00

10.250.10--

2800.009.908.60

755.000.081.60

0.020.010.1318.002.20

120.0023.0017.50

630.0026.506.1016.00

730.000.503.002.00--

110.00----

<25.00145.00

--40.00--

<1.00240.00

4450.001780.00

134.00

1.000.04--

1750.007.608.40

422.500.051.20

0.010.010.1011.000.85

85.5017.2513.25

355.0015.005.639.60

405.000.401.301.75--

90.00----

<25.0075.00--10.00--

<1.00125.00

--1975.001116.00

--96.00

0.000.00--

775.001.238.00

210.000.000.90

0.010.000.056.340.4113.8010.355.35

140.006.973.254.38

152.000.200. 191.00--

53.00----

<25.0020.00

<10.00--

<1.0050.00

347.50467.60

24.40



SPECIFIC CONDUCTANCE (MICROS IEMENS)ALKALINITY (AS CAC03)HARDNESS (AS CAC03)CALCIUM, DISSOLVEDMAGNESIUM, DISSOLVEDSODIUM, DISSOLVEDSODIUM ADSORPTION RATIOPOTASSIUM, DISSOLVEDCHLORIDE, DISSOLVEDSULFATE, DISSOLVED

SAMPLE SIZE


262425242424242425252524


*0.232.0309*.00606.243.00675*.00566.327.720*


LOGQKK

LOGQKKKKKKKQ

*47.539.7*1.27

-39.14.94*1.15

-128-128

*


(r 2 ) OF F

0.30.92.52.29.85.98.89.42.68.89.94.14

0 .0036.0001.0001.0067.0001.0001.0001.0006.0001.0001.0001.0668


J-

88.437.9--3.29

48.83.01*4.91

145240

*

56

Table 1.--Statistical summaries of water-quality data from the Powder River coal jbasin, jbased on samples collected from October 1, 1974, to September 30, 1981 Continued

STATION NUMBER: 06386000 STATION NAME AND LOCATION: LANCE CREEK NEAR RIVERVIEW, WYO.DRAINAGE AREA: 2,070 SQUARE MILES

DESCRIPTIVE




(AS N)NITROGEN, N02+N03 TOTAL (AS N)NITROGEN, N02+N03 DISSOLVED (AS N)PHOSPHORUS, TOTAL (AS P)CARBON, ORGANIC DISSOLVEDCARBON, ORGANIC SUSPENDEDHARDNESS (AS CAC03)CALCIUM DISSOLVEDMAGNESIUM, DISSOLVEDSODIUM, DISSOLVEDSODIUM ADSORPTION RATIOPOTASSIUM, DISSOLVEDCHLORIDE, DISSOLVEDSULFATE DISSOLVEDFLUORIDE, DISSOLVEDSILICA, DISSOLVEDARSENIC DISSOLVED (UG/L)BORON, DISSOLVED (UG/L)CADMIUM DISSOLVED (UG/L)CHROMIUM, DISSOLVED (UG/L)COPPER, DISSOLVED (UG/L)IRON, DISSOLVED (UG/L)LEAD, DISSOLVED (UG/L)MANGANESE, DISSOLVED (UG/L)ZINC, DISSOLVED (UG/L)SELENIUM, DISSOLVED (UG/L)PHENOLS (UG/L)SOLIDS, SUM OF CONSTITUENTS,DISSOLVED


921015862595658615861

571

5822

616161616161616161618

61888

618888

1161

951

352830120007500

1378

4200

20

304

100

15003701509001018

1703000

0202

3004

<2015

66059

620801

114680

<014800

.00 0.

.00 0.

.00 1.

.00 540.

.00 5.

.00 0.

.30 7.

.00 68.

.71 0.

.00 0.

.30 0.

.04 0.

.10 0.

.00 6.

.40 0.

.00 160.

.00 44.

.00 12.

.00 43.

.00 1.

.00 6.

.00 9.

.00 180.

.90 0.

.00 5.

.00 <1.

.00 <20.

.00 <2.

.00 <20.

.00 <2.

.00 <10.

.00 <10.

.00 100.

.00 <20.

.00 <1.

.00 0.

.00 347.

.50 <0.

.00 6.

00000000907030000026

000400804000000000403090004090000000000000000000000000

5050

13.09135.64458.85

3336.619.202.46

288.950.081.62

0.16--0.21----

836.23206.9376.57

495.027.2713.18

104.851439.67

0.5613.17------------------ 3.09

2523.72

--1771.93

STANDARD DEVIATION

9.99399.331831.941369.86

1.821.42--

76.380.103.57

0.45--0.71----

317.8575.4730.69194.24

1.972.86

36.91632.89

0.123.16--------------------3.21

984.27

--3669.61

PERCENT OF SAMPLES IN WHICH VALUESWERE LESS THAN95 75


SHOWN5

(MEDIAN)

29.70975.70

4574.985455.00

12.305.598.30

399.000.228.30

0.83--1.87--

1400.00338.00130.00804.00

9.9518.00

168.002500.00

0.8018.00

280.00-- --

433.50--------11.00

4124.00

--11879.97

20.3826.5067.50

4000.0010.503.208.10

340.000.101.00

0.10--0.05----

980.00240.0095.00

635.008.6015.00

130.001850.00

0.6016.00

210.00------

110.00------ 5.00

3170.00

--409.00

13.254.5010.00

3380.009.102.308.00

290.000.070.73

0.06--0.03 --

840.00200.0077.00

530.007.8013.00

110.001500.00

0.5013.00--

190.00

51.00---- --2.00

2550.00

--117.00

2.750.284.98

2507.507.801.427.70

255.000.040.60

0.02--0.02----

655.00160.0056.00380.00

6.4511.0091.50

990.000.5010.50

150.00----

30.00--------1.00

1900.00

--48.00

0.000.001.70

611.006.300.787.39

132.000.010.43

0.00--0.01 --

272.0072.5022.20100.102.627.93

24.30293.00

0.408.62

120.00-- --

11.00---- 0.00

635.90

--17.60




SAMPLE SIZE


55595858585858585858585822


8.46-854

.0551

.220

.0510

.0214

.144

.00145-V

*.443.714

13.0

INDEPENDENT REPRESSION COEFFICIENT OF SIGNIFICANCE INDEPENDENT REGRESSION D£TE^NATION PROBABJLITY

QLOGQ

KKKKKKKKKKQ

833,620

10995354

122

-53124372

.5

.8

.0

.53

.7

.48-J-

*.8

0.66.52.74.76.72.79.85.79.26.38.80.84.80

0 .0001.0001.0001.0001.0001.0001.0001.0001.0001.0001.0001.0001.0001


1,10087240.115038.813.673.2

.922*'-

*269386

1,650

57

Table 1.--Statistical summaries of water-quality data from the Powder River coal basin, based on samples collected from October 1, 1974, to September 30, I98I--Continued

STATION NUMBER: 06386500 STATION NAME AND LOCATION: CHEYENNE RIVER NEAR RIVERVIEW, WYO. DRAINAGE AREA: 5,270 SQUARE MILES



TEMPERATURE (DEC C)STREAMFLOW, INSTANTANEOUS (FT3/S)TURBIDITY (NTU)SPECIFIC CONDUCTANCE (MICROSIEMENS)OXYGEN, DISSOLVEDPH (UNITS)ALKALINITY (AS CAC03)NITROGEN, AMMONIA TOTAL (AS N)NITROGEN, AMMONIA '+ ORGANIC TOTAL

(AS N)NITROGEN, N02+N03 TOTAL (AS N)PHOSPHORUS, TOTAL (AS P)CARBON, ORGANIC DISSOLVEDCARBON, ORGANIC SUSPENDEDHARDNESS (AS CAC03)CALCIUM DISSOLVEDMAGNESIUM, DISSOLVEDSODIUM, DISSOLVEDSODIUM ADSORPTION RATIOPOTASSIUM, DISSOLVEDCHLORIDE, DISSOLVEDSULFATE DISSOLVEDFLUORIDE, DISSOLVEDSILICA, DISSOLVEDARSENIC DISSOLVED (UG/L)BORON, DISSOLVED (UG/L)CADMIUM DISSOLVED (UG/L)CHROMIUM, DISSOLVED (UG/L)COPPER, DISSOLVED (UG/L)IRON, DISSOLVED (UG/L)LEAD, DISSOLVED (UG/L)MANGANESE, DISSOLVED (UG/L)ZINC, DISSOLVED (UG/L)SELENIUM, DISSOLVED (UG/L)COLIFORM, FECAL, (COLS/100 ML)PHENOLS (UG/L)SOLIDS, SUM OF CONSTITUENTS,DISSOLVED

MERCURY DISSOLVED (UG/L)

424542414238413939

413656

414141414141414141411441141414411414141447

41

14

30208

40006500

128

4200

20

0181

1800420180

12001216

1503600

0172

3904

<20<20

100020

2300402

4809

5810

<0

.00

.00

.00

.00

.50

.50

.00

.84

.00

.88

.90

.70

.80

.00

.00

.00

.00

.00

.00

.00

.00

.70

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.50

0.000.001.00

560.006.407.50

82.000.000.17

0.000.007.100.30

110.0029.0010.0050.001.705.307.00

160.000.403.60<1.0080.00<2.00

<20.00<20.00<10.00<2.00

<10.00<20.00<1.0080.000.00

333.00

<0.50

14.8919.63

272.073390.00

9.09--

258.900.131.90

0.150.22----

807.56194.4978.71

507.417.3912.0675.26

1507.070.579.94--

211.22---------- -- --

2541.07

--

STANDARD DEVIATION

8.7345.91773.49

1498.111.59--

80.580.143.51

0.190.49 --

404.2593.1742.95

279.622.582.6935.26

877.160.113.07

83.76--------------------

1356.77

--

PERCENT OF SAMPLES INWERE LESS THAN95 75

OR EQUAL50


25SHOWN

5(MEDIAN)

27.77170.00

2700.006159.00

11.758.40

412.300.418.90

0.671.73----

1600.00389.00169.00

1090.0011.9015.90

129.003400.00

0.7015.002.00

380.004.00

<20.00<20.00270.0020.00

2300.0040.002.00----

5324.00

<0.50

22.0014.50

111.004550.00

10.658.23

300.000.151.10

0.250.09----

1045.00245.00105.00660.00

9.4014.0097.00

1950.000.6512.001.00

240.002.25

<20.00<20.0080.003.00

395.0020.001.00--

3245.00

<0.50

17.252.508.25

3300.008.908.10

260.000.110.86

0.070.05----

740.00180.0076.00

480.007.6013.0080.00

1400.000.6010.00<1.00

200.00<2.00

<20.00<20.0040.002.00

170.00<20.00<1.00 --

2370.00

<0.50

8.130.003.00

2300.007.708.00

218.000.060.67

0.020.02--

515.00130.0048.50

280.005.4510.5049.00

795.000.507.60

<1.00170.00<2.00

<20.00<20.0025.00<2.0045.00<20.00<1.00 --

1470.00

<0.50

0.000.001.00

911.006.547.60

86.800.000.28

0.000.01----

166.0040.7015.5067.602.606.059.75

196.000.405.32<1.0090.00<2.00

<20.00<20.00<10.00<2.00

<10.00<20.00<1.00----

383.60

<0.50REGRESSION STATISTICS



SAMPLE SIZE


252525252525252525252525


***JL

*

JL

*

*

*

JL

*

*

[NDEPENDE1 VARIABLE

QQK

LOGQLOGQLOGQ

KKQK

LOGQLOGQ

COEFFICIENT OF SIGNIFICANCErnSSlxTT DETERMINATION PROBABILITY CONSTANT (r2) QF F

*« ** £

JU

*

*

*

*

*

*

0.27.01.19.31.28.32.33.28.12.21.35.31

0 .0075.647.0288.0039.0066.0031.0028.0070.0835.0209.0020.0036


*~>\* ;V

*.1.

*"k

*~k

*

"

58

Table 1.--Statistical summaries of water-quality data from the Powder River coal jbasin, based on samples collected from October 1, 1974, to September 30, 1981 --Continued

STATION NUMBER: 06425720 STATION NAME AND LOCATION: BELLE FOURCHE RIVER BELOW RATTLESNAKE CREEK NEAR PINEY, WYO. DRAINAGE AREA: 495 SQUARE MILES




MINIMUM MEANSIZE

TEMPERATURE (DEC C)STREAMFLOW, INSTANTANEOUS (FT3/S)TURBIDITY (NTU)SPECIFIC CONDUCTANCE (MICROSIEMENS)OXYGEN, DISSOLVED (MG/L)OXYGEN DEMAND, BIOCHEMICAL, 5 DAYPH (UNITS)ALKALINITY (AS CAC03)NITROGEN, AMMONIA DISSOLVED (AS N)NITROGEN, AMMONIA TOTAL (AS N)NITROGEN, AMMONIA + ORGANIC TOTAL

(AS N)NITROGEN, N02+N03 TOTAL (AS N)NITROGEN, N02+N03 DISSOLVED (AS N)PHOSPHORUS, TOTAL (AS P)CARBON, ORGANIC DISSOLVEDCARBON, ORGANIC SUSPENDEDHARDNESS (AS CAC03)CALCIUM DISSOLVEDMAGNESIUM, DISSOLVEDSODIUM, DISSOLVEDSODIUM ADSORPTION RATIOPOTASSIUM, DISSOLVEDCHLORIDE, DISSOLVEDSULFATE DISSOLVEDFLUORIDE, DISSOLVEDSILICA, DISSOLVEDARSENIC DISSOLVED (UG/L)BARIUM, DISSOLVED (UG/L)BORON, DISSOLVED (UG/L)CADMIUM DISSOLVED (UG/L)CHROMIUM, DISSOLVED (UG/L)COPPER, DISSOLVED (UG/L)IRON, DISSOLVED (UG/L)LEAD, DISSOLVED (UG/L)MANGANESE, DISSOLVED (UG/L)ZINC, DISSOLVED (UG/L)SELENIUM, DISSOLVED (UG/L)PHENOLS (UG/L)PHYTOPLANKTON, TOTAL (CELLS PER ML)SOLIDS, SUM OF CONSTITUENTS,


52813535332531293

2529

274

2922

2929292929292929292972

29777

29777753

29

728

281060

258000

1358

400002

000

150

35005305301200

84555

5400092

10081010

<207

4105

800402

20490007870

<0927

.50

.00

.00

.00

.80

.80

.40

.00

.07

.32

.70

.20

.05

.16

.00

.70

.00

.00

.00

.00

.80

.00

.00

.00

.90

.40

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.50

.00

0.000.002.00

1100.006.301.207.20

90.000.010.010.43

0.010.000.0111.000.60

380.0095.0035.00

100.002.206.404.10

510.000.200.20<1.0050.0060.00<1.00

<20.00<2.00

<10.00<2.00120.00

4.00<1.000.00

210.00809.00

<0.5020.00

12.7316.279.32

4156.579.792.87--

236.83--0.081.05

0.06--0.06----

1483.45286.45187.62434.14

4.7316.8322.81

2121.380.474.28----

162.07--------------------

3216.17

--108.82

DEVIA- 95TION

9.63 27.17117.85 35.405.51 21.00

1747.83 7440.001.58 12.821.24 5.56

8.4083.29 380.00__0.07 0.270.41 2.10

0.05 0.19__0.04 0.14____

616.32 2849.9897.96 450.0098.40 435.00

225.40 954.991.55 8.008.39 42.5012.80 53.00

1003.51 4449.970.14 0.752.68 9.10____

135.45 534.99____

365.00____ ______

1451.86 6529.96

__168.78 594.44

75OR EQUAL

50


25SHOWN

5(MEDIAN)

22.0.

15.5500.

10.3.8.

300. 0.1.

0.--0.----

1750.345.235.515.

5.18.28.

2650.0.6.----

180.----

120.-------- --

3999.

--126.

0095000080651000

1120

07

09

00000000500050005065

00

00

99

00

14.000.017.00

4000.009.802.507.90

233.00--0.070.96

0.05 0.04----

1600.00320.00190.00400.00

4.6016.0022.00

2100.000.504.10----

140.00-- --

55.00---- ------

3240.00

--61.00

2.130.005.20

3300.008.751.957.60

187.50 0.040.86

0.02--0.04--

1200.00220.00135.00320.00

4.0011.5015.00

1650.000.401.40----

100.00------

30.00 --------

2530.00

--36.25

0.000.002.00

1100.007.071.267.26

90.00--0.010.49

0.01--0.02----

450.00107.5043.00110.002.207.454.60

575.000.200.25----

65.00------10.00---- -- --

919.50

--23.15




SAMPLE SIZE


192019191919191919191919


**0.0470.308.0522.0445.104.000776.00225.00548.520.756

tNDEPENDEl VARIABLE

LOGQQKKKKKKKKKK

«T REGRESSION S ?^ CONSTANT JJtifcKniNAiu

**

61.821687.1-2.98-2.151.546.09-.00366

-17.9112

0.38.39.76.86.60.93.92.80.51.80.96.96

OF SIGNIFICANCE )N PROBABILITY

OF F

0 .0046.0034.0001.0001.0001.0001.0001.0001.0006.0001.0001.0001


**

34.316556.015.640.0

.5162.913.64

140196

59


STATION NUMBER: 06425780 STATION NAME AND LOCATION: BELLE FOURCHE RIVER ABOVE DRY CREEK NEAR PINEY, WYO. DRAINAGE AREA: 594 SQUARE MILES




MINIMUM MEANSIZE


(AS N)NITROGEN, N02+N03 TOTAL (AS N)NITROGEN, N02+N03, DISSOLVED (AS N)PHOSPHORUS, TOTAL (AS P)CARBON, ORGANIC DISSOLVEDCARBON, ORGANIC SUSPENDEDHARDNESS (AS CAC03)CALCIUM DISSOLVEDMAGNESIUM, DISSOLVEDSODIUM, DISSOLVEDSODIUM ADSORPTION RATIOPOTASSIUM, DISSOLVEDCHLORIDE, DISSOLVEDSULFATE DISSOLVEDFLUORIDE, DISSOLVEDSILICA, DISSOLVEDARSENIC DISSOLVED (UG/L)BARIUM, DISSOLVED (UG/L)BORON, DISSOLVED (UG/L)CADMIUM DISSOLVED (UG/L)CHROMIUM, DISSOLVED (UG/L)COPPER, DISSOLVED (UG/L)IRON, DISSOLVED (UG/L)LEAD, DISSOLVED (UG/L)MANGANESE, DISSOLVED (UG/L)ZINC, DISSOLVED (UG/L)SELENIUM, DISSOLVED (UG/L)PHENOLS (UG/L)PHYTOPLANKTON, TOTAL (CELLS PER ML)SOLIDS, SUM OF CONSTITUENTS,DISSOLVED


78995160554054512

4546

436

4544

51515151515151515151123

51121213511216121289

48

1247

32250014006500

19108

430004

4700

204

2600550300700

65035

34000

201

2001700

102031

80031

200030227

80005280

<04020

.00

.00

.00

.00

.00

.00

.70

.00

.07

.59

.30

.00

.25

.59

.00

.20

.00

.00

.00

.00

.30

.00

.00

.00

.80

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.50

.00

0.000.001.00

270.004.301.207.30

52.000.010.020.27

0.010.010.010.900.2072.0019.006.0013.000.505.802.0077.000.200.30

<1.00<100.00

60.00<2.00

<20.00<20.00<10.00<2.009.00

<20.00<1.000.00

550.00182.00

<0.503.00

11.5433.3852.92

3105.0510.453.29--

225.26--0.131.23

3.31--0.07----

1184.55259.90129.28275.98

3.3718.6414.46

1491.430.395.68----

379.41----------

298.06--------

2309.87

--580.36

DEVIA- 95TION

8.72 26252.01 59199.59 254

1480.57 57852.81 171.55 5

8103.58 430

--0.12 00.71 2

8.96 26--0.11 0----

584.09 2100121.88 43469.34 240152.51 574

1.21 59.36 377.29 32

796.65 28000.13 04.30 14

1--

284.52 980102031

60531

503.02 20003022

----

1132.05 4192

<01007.98 3478

75OR EQUAL

50


25SHOWN

5(MEDIAN)

.00

.00

.00

.00

.48

.48

.52

.00-.42.73

.60-.42--.00.00.00.00.82.40.00.00.70.00.00-.00.00.00.00.00.00.00.00.00--.00

.50

.00

18.371.80

15.004175.00

11.404.158.10

280.00--0.131.30

1.40--0.06----

1600.00350.00180.00370.00

4.1024.0017.00

2100.000.407.301.00--

520.003.00

<20.00<20.00110.00<2.00

362.5020.002.00----

3075.00

<0.50996.00

12.000.108.10

3110.009.902.808.00

220.00--0.091.10

0.31--0.04----

1300.00280.00140.00280.00

3.4018.0014.00

1600.000.404.701.00--

330.00<2.00

<20.00<20.0060.00<2.0095-0020.001.00----

2435.00

<0.5073.00

3.880.015.00

2200.009.002.207.78

160.00--0.060.80

0.07--0.02----

710.00170.0074.00160.002.6012.009.40

870.000.302.001.00--

180.00<2.00

<20.00<20.0040.00<2.0022.50<20.00

1.00----

1420.00

<0.5036.00

0.000.002.60

415.356.121.617.37

62.40--0.040.37

0.02--0.01----

120.0031.609.26

36.001.625.924.16

88.600.200.40

<1.00--

72.00<2.00

<20.00<20.0012.00<2.009.00

<20.00<1.00----

337.70

<0.509.60




SAMPLE SIZE


384844444444444444444441


*JL

*

0.385.0787.0448.0964.000724*.00355.540.770


QQKKKKKKKKKK

***

79.235.8-.878

-6.131.26*4.21

-64.389.9


(r 2 ) OF F

0.39.21.38.87.81.88.88.73.35.51.93.93

0 .0001.0011.0001.0001.0001.0001.0001.0001.0001.0001.0001.0001


Vr

*

*

20652.422.148.3

.594*4.73

195286

60

Table 1.--Statistical summaries of water-guaJity data from the Powder River coal basin, based on samples collected from October 1, 1974, to September 30, 1981 --Continued

STATION NUMBER: 06425900 STATION NAME AND LOCATION: CABALLO CREEK AT MOUTH NEAR PINEY, WYO. DRAINAGE AREA: 260 SQUARE MILES




MINIMUM MEANSIZE

TEMPERATURE (DEC C)STREAMFLOW, INSTANTANEOUS (FT3/S)SPECIFIC CONDUCTANCE (MICROSIEMENS)OXYGEN, DISSOLVEDPH (UNITS)ALKALINITY (AS CAC03)NITROGEN, AMMONIA TOTAL (AS N)NITROGEN, AMMONIA + ORGANIC TOTAL

(AS N)NITROGEN, N02+N03 TOTAL (AS N)NITROGEN, N02+N03, DISSOLVED (AS N)PHOSPHORUS, TOTAL (AS P)CARBON, ORGANIC DISSOLVEDCARBON, ORGANIC SUSPENDEDHARDNESS (AS CAC03)CALCIUM DISSOLVEDMAGNESIUM, DISSOLVEDSODIUM, DISSOLVEDSODIUM ADSORPTION RATIOPOTASSIUM, DISSOLVEDCHLORIDE, DISSOLVEDSULFATE DISSOLVEDFLUORIDE, DISSOLVEDSILICA, DISSOLVEDARSENIC DISSOLVED (UG/L)BARIUM, DISSOLVED (UG/L)BORON, DISSOLVED (UG/L)CADMIUM DISSOLVED (UG/L)CHROMIUM, DISSOLVED (UG/L)COPPER, DISSOLVED (UG/L)IRON, DISSOLVED (UG/L)LEAD, DISSOLVED (UG/L)MANGANESE, DISSOLVED (UG/L)ZINC, DISSOLVED (UG/L)SELENIUM, DISSOLVED (UG/L)STREPTOCOCCI FECAL, (COLS/ 100 ML)PHENOLS (UG/L)PHYTOPLANKTON , TOTAL (CELLS PER ML)SOLIDS, SUM OF CONSTITUENTS,DISSOLVED


2441201919191519

145

1919171919191919191919191978

19777

197777

164

1919

732

2410404780

128

37001

100

252

1800390250500

646

1902300

082

3441100

3<20<25120<251100130

28900

7540003580

014500

.50

.00

.00

.20

.30

.00

.23

.70

.60

.27

.35

.00

.10

.00

.00

.00

.00

.80

.00

.00

.00

.60

.70

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.30

.00

0.000.00

320.006.506.10

44.000.010.43

0.010.000.016.200.00

120.0024.0010.0016.000.607.304.40

110.000.100.10

<1.00<100.00110.00<3.00

<20.00<25.00<10.00<25.00<10.00<20.00<1.0025.001.00

170.00209.00

<0.105.00

9.7330.34

2385.909.33--

212.260.070.98

0.17--0.0813.920.81

962.63205.58107.68210.05

2.8120.1943.78

1116.840.374.04----

435.26----------------

1029.25--

8251.051835.79

--1857.34

DEVIA- 95TION

7.58 23162.04 44

1291.30 47461.93 12

8100.63 3700.06 00.30 1

0.43 1__0.08 05.45 250.54 2

533.56 1800116.97 39071.81 250147.49 500

1.59 611.80 4646.53 190

664.23 22990.17 02.52 8----

311.26 1100______

120-- ----

2227.67 8900--

14031.34 539991047.81 3579

__3696.91 11704

75OR EQUAL

50


25SHOWN

5(MEDIAN)

.87

.95

.00

.20

.30

.00

.23

.70

.60-.35.00.10.00.00.00.00.80.00.00.99.60.70--.00---.00----.00-.68.99

-.96

16.375.25

3349.7511.208.10

300.000.101.00

0.09--0.0918.000.95

1400.00280.00160.00300.00

4.1026.0064.00

1700.000.505.80----

630.00------

60.00--------

667.50--

9200.002770.00

--1121.00

9.250.33

2525.009.708.10

210.000.060.93

0.01--0.0415.000.80

1000.00240.00110.00210.00

2.4017.0030.00

1200.000.404.20----

350.00------

40.00--------

220.00--

1800.002030.00

--39.00

2.380.00

1080.007.608.00

130.000.020.86

0.01--0.038.900.45

410.0082.0041.0072.001.60

11.0011.00

440.000.201.40----

180.00------

20.00--------

71.75--

650.00718.00

--23.00

0.000.00

325.006.506.10

44.000.010.43

0.01--0.016.200.00

120.0024.0010.0016.000.607.304.40

110.000.100.10----

110.00------

<10.00--------

25.00--

170.00209.00

--5.65




SAMPLE SIZE


201919191919191919191918


*0.0662.354.0796*.106.00107*.0252.482.773*


QKKKKKKKKKK

LOGQ

*55.212416.7

J-

-42.3.265*

-16.0-25.7

2.00*


(r 2 ) OF F

0.35.76.77.81.47.91.80.28.52.92.96.08

0 .0059.0001.0001.0001.0013.0001.0001.0209.0005.0001.0001.254


*50.7

26252.0*

44.7.729*

33.3189226

*

61


STATION NUMBER: 06426400 STATION NAME AND LOCATION: DONKEY CREEK NEAR MOORCROFT, WYO. DRAINAGE AREA: 246 SQUARE MILES


WATER QUALITY CONSTITUENTSAM

PLE MAXIMUM MINIMUM MEANSIZE


(AS N)NITROGEN, N02+N03 TOTAL (AS N)NITROGEN, N02+N03, DISSOLVED (AS N)PHOSPHORUS, TOTAL (AS P)PHOSPHORUS, ORTHO, DISSOLVED (AS P)CARBON, ORGANIC DISSOLVEDCARBON, ORGANIC SUSPENDEDHARDNESS (AS CAC03)CALCIUM DISSOLVEDMAGNESIUM, DISSOLVEDSODIUM, DISSOLVEDSODIUM ADSORPTION RATIOPOTASSIUM, DISSOLVEDCHLORIDE, DISSOLVEDSULFATE DISSOLVEDFLUORIDE, DISSOLVEDSILICA, DISSOLVEDARSENIC DISSOLVED (UG/L)BARIUM, DISSOLVED (UG/L)BORON, DISSOLVED (UG/L)CADMIUM DISSOLVED (UG/L)CHROMIUM, DISSOLVED (UG/L)COPPER, DISSOLVED (UG/L)IRON, DISSOLVED (UG/L)LEAD, DISSOLVED (UG/L)MANGANESE, DISSOLVED (UG/L)ZINC, DISSOLVED (UG/L)SELENIUM, DISSOLVED (UG/L)STREPTOCOCCI FECAL, (COLS/100/ML)PHENOLS (UG/L)PHYTOPLANKTON, TOTAL (CELLS PER ML)SOLIDS, SUM OF CONSTITUENTS,DISSOLVED

MERCURY, DISSOLVED (UG/L)SEDIMENT, SUSPENDED

5357

1484545453638

331439

1373245454545454545454544121144121213441218121229104343

1258

26.502530.00

30.006900.00

18.608.80

880.006.8011.00

1.103.004.500.01

110.006.00

1500.00250.00260.001400.0022.0049.00

250.003400.00

3.8023.003.00

200.00940.00<20.00<20.00<25.00160.00

<200.00700.0040.003.00

20000.0020.00

630000.005410.00

0.506040.00

0.000.01

30.00740.00

4.207.10

74.000.000.56

0.000.000.010.014.600.20

250.0045.0033.0047.001.103.2012.00

220.000.200.401.00

<100.00110.00<20.00<20.00<25.00<10.00

<200.00100.00<20.00<1.0024.000.0076.00

460.00

<0.1011.00

7.8586.99--

3717.089.35--

463.420.892.19

0.180.440.34--

17-281.72

952.67148.93141.02582.04

8.0315.9999.38

1571.331.066.661.75--

423.86----------

275.56----

1332.765.80

35029.582892.91

--

381.95

PERCENT OF SAMPLES IN WHICH VALUESSTANDARD WEREDEVIA- 95TION

7.57 21.353.89 500.

__

1425.02 6484.2.77 14.

8.191.46 745.

1.81 6.2 . 05 7 .

0.29 1.0.87 3.0.76 1.__

16.75 39.1.37 5.

315.43 1400.51.20 237.58.15 254.

307.02 1170.3.84 14.7.26 26.

71.23 230.804.20 3280.

0.56 1.5.08 17.0.75 3.

200.209.94 885.

<20.<20.<25.107.

<200.177.21 700.

40.3.

3668.89 11549.6.70 20.

98966.00 150000.1242.20 5243.

0.937.69 2375.

LESS THAN OR EQUAL TO THOSE75 50 25

SHOWN5

(MEDIAN)

3000

999364003758

020090

800900000000708000008750000000000000000000000074000099

5099

13.504.00--

4617.5010.558.30

615.001.032.50

0.210.410.25--

17.502.68

1200.00190.00180.00750.00

9.7519.00

165.002000.00

1.209.352.00

200.00557.50<20.00<20.00<25.0052.50

<200.00412.5020.001.00

1150.0010.50

22000.003680.00

<0.10199.75

7.0.--

3665.9.8.

470.0.1.

0.0.0.--

13.1.

990.150.150.530.

7.16.75.

1400.1.4.2.

<100.360.<20.<20.<25.40.

<200.205.<20.<1.

350.2.

8700.2710.

<0.141.

00 0.73 0.

--

00 2685-40 7.10 7.00 335.10 0.35 1.

04 0.03 0.10 0.

--

00 11.40 0.00 750.00 110.00 93.00 375.40 6.00 12.00 38.00 980.10 0.70 2.00 1.00 <100.00 252.00 <20.00 <20.00 <25.00 30.00 <200.00 167.00 <20.00 <1.00 120.50 0.00 1400.00 2060.

10 <0.00 72.

5017

004585000508

010206

007300000000250050008055000050000000000050000000750000

1075

0.000.06--

1022.504.937.36

105.000.010.77

0.010.000.03--

7.570.27

323.0049.0047.6077.501.714.0418.90

335.000.231.071.00

<100.00152.50<20.00<20.00<25.00<10.00

<200.00100.00<20.00<1.0036.000.00

86.80614.20

<0.1017.95


WATER QUALITY CONSTITUENT SAMPLE REGRESSION INDEPENDEJSIZE COEFFICIENT VARIABLE

SPECIFIC CONDUCTANCE (MICROSIEMENS)ALKALINITY (AS CAC03)HARDNESS (AS CAC03)CALCIUM, DISSOLVEDMAGNESIUM, DISSOLVEDSODIUM, DISSOLVEDSODIUM ADSORPTION RATIOPOTASSIUM, DISSOLVEDCHLORIDE, DISSOLVEDSULFATE, DISSOLVEDSOLIDS, SUM OF CONSTITUENTS, DISSOLVEDSEDIMENT, SUSPENDED

474444444444444444444244

*

0.104.177*

.0356

.203

.00227**

.521

.8341.76

LOGQKKQKKKKQKKQ

rr REGRESSION ^CONSTANT

*

73.6300

*

9.30-178

-.478**

-371-265

115

'OEI

i£TFvFICIENT 0;RMINATION(r 2 )

0.38.63.64.11.76.92.75.10.04.87.94.79

F SIGPRO

1NIFICANCELABILITYOF F

0.0001.0001.0001.0255.0001.0001.0001.0417.213.0001.0001.0001

STANDARDERROR OFESTIMATE

*

116195

*29.485.51.92**

29731066.3

62

Table 1.--Statistical summaries of water-eyuality data from the Powder River coal basin, based on samples collected from October 1, 1974, to September 30, 1981--Continued

STATION NUMBER: 06426500 STATION NAME AND LOCATION: BELLE FOURCHE RIVER BELOW MOORCROFT, WYO. DRAINAGE AREA: 1,670 SQUARE MILES




(AS N)NITROGEN, N02+N03 TOTAL (AS N)NITROGEN, N02+N03, DISSOLVED (AS N)PHOSPHORUS, TOTAL (AS P)PHOSPHORUS, ORTHO, DISSOLVED (AS P)CARBON, ORGANIC DISSOLVEDCARBON, ORGANIC SUSPENDED TOTALHARDNESS (AS CAC03)CALCIUM DISSOLVEDMAGNESIUM, DISSOLVEDSODIUM, DISSOLVEDSODIUM ADSORPTION RATIOPOTASSIUM, DISSOLVEDCHLORIDE, DISSOLVEDSULFATE DISSOLVEDFLUORIDE, DISSOLVEDSILICA, DISSOLVEDARSENIC DISSOLVED (UG/L)BARIUM, DISSOLVED (UG/L)BORON, DISSOLVED (UG/L)CADMIUM DISSOLVED (UG/L)CHROMIUM, DISSOLVED (UG/L)COPPER, DISSOLVED (UG/L)IRON, DISSOLVED (UG/L)LEAD, DISSOLVED (UG/L)MANGANESE, DISSOLVED (UG/L)ZINC, DISSOLVED (UG/L)SELENIUM, DISSOLVED (UG/L)PHENOLS (UG/L)PHYTOPLANKTON, TOTAL (CELLS PER ML)SOLIDS, SUM OF CONSTITUENTS,DISSOLVED


SAM PLE SIZE

1221236579762272726063

595

631

101072727271717272727272202

722020217220282020113471

2064

MAXIMUM

31.2400,1500.5500.

16,9.8.

710,6,6.

4,0.2.0,

30.2.

1400,280.180.740.14,26.

210,2000,

1.16.4,

100.870.

3,20.23.

640,24.

1000.30,13,49.

64000,3620,

<0,10500

.00

.00,00.00.20.80.90.00.30.70

.40

.95

.50

.01

.00

.70

.00

.00

.00

.00

.00

.00

.00

.00

.60

.00

.00

.00

.00

.00,00.00.00.00.00.00.00.00.00.00

.50

.00

MINIMUM MEAN

0.000.002.00

480.003.501.206.7074.000.000.42

0.000.000.000.010.800.00

140.0030.0012.0040.001.306.005.80

130.000.000.00

<1.0050.0070.00<2.00

<20.00<2.00

<10.00<2.00

<10.00<20.00<1.000.00

230.00290.00

<0.509.00

10.7464.51138.30

2449.628.964.12--

352.880.421.70

0.37--0.23--10.121.27

604.86121.0773.56

356.386.2512.6670.56

895.970.606.80----

256.25----------------7.91

15075.591755.63

--735.22

STANDARD DEVIA TION

9.22275.82300.841142.67

2.431.87

156.230.921.14

0.89--0.37--8.180.83

308.6560.6340.56176.20

2.514.18

57.97456.03

0.252.88----

152.45----------------14.06

16061.84827.35

--1722.44


25.85326.401055.004699.99

13.789.368.60

614.002.074.38

3.00--0.61--

30.002.70

1200.00243.50147.00646.0011.0020.75183.50

1670.001.07

12.353.90--

557.003.00

20.0023.00

455.5024.00779.4930.0013.0049.00

57249.863142.00

<0.502965.00

75

19.0012.0090.00

3310.0010.485.378.30

466.000.382.00

0.20--0.28--11.751.85

850.00160.00110.00500.00

7.8015.75

120.001300.00

0.788.181.75--

315.00<2.00

<20.00<2.00

100.004.00

220.00<20.00

2.007.00

26250.002470.00

<0.50465.00

50 (MEDIAN)

10.752.20

40.002400.00

8.453.458.10

340.000.131.50

0.06--0.13--9.651.45

560.00110.0063.50

340.006.5012.0044.50

870.000.606.751.00--

195.00<2.00

<20.00<2.0050.002.00

155.00<20.00

1.003.00

9900.001760.00

<0.50173.00


25

1.000.2413.50

1500.007.602.807.70

232.500.050.96

0.01--0.06--5.250.65

340.0069.2540.00

220.004.309.73

22.00517.50

0.504.73

<1.00--

152.50<2.00

<20.00<2.0030.00<2.0090.00

<20.00<1.001.00

2050.001060.00

<0.5069.25

5

0.000.023.86

670.005.271.397.43

92.050.010.61

0.00--0.02--0.800.00

200.0040.3016.2566.601.987.679.83

196.500.273.16

<1.00--

90.00<2.00

<20.00<2.00

<10.00<2.00<10.00<20.00<1.000.00

590.00406.00

<0.5010.50

63


STATION NUMBER: 06426500 STATION NAME AND LOCATION: BELLE FOURCHE RIVER BELOW MOORCROFT, WYO.--Continued




59746868686867676868686719

REGRESSION INDEPENDENT COEFFICIENT VARIABLE

**0.120.240.0417.0327.153.00166 k

*

.384

.72230.0

KQKKKKKKKKKKQ

REGRESSION CONSTANT

**

60.923.119.2-5.1815.72.21Vf

*-32.1-2.43

187


(r 2 ) OF F

0.25.08.69.78.63.81.89.50.49.36.88.93.63

0.0001.0159.0001.0001.0001.0001.0001.0001.0001.0001.0001.0001.0001


-<v

89.014335.717.760.31.84

-v

157214337


STATION NUMBER: 06645000 STATION NAME AND LOCATION: NORTH PLATTE RIVER BELOW CASPER, WYO.--Continued DRAINAGE AREA: 12,574 SQUARE MILES

DESCRIPTIVE



(AS N)NITROGEN, N02+N03 TOTAL (AS N)NITROGEN, N02+N03 DISSOLVED (AS N)PHOSPHORUS, TOTAL (AS P)HARDNESS (AS CAC03)CALCIUM DISSOLVEDMAGNESIUM, DISSOLVEDSODIUM, DISSOLVEDSODIUM ADSORPTION RATIOPOTASSIUM, DISSOLVEDCHLORIDE, DISSOLVEDSULFATE DISSOLVEDFLUORIDE, DISSOLVEDSILICA, DISSOLVEDARSENIC DISSOLVED (UG/L)BARIUM, DISSOLVED (UG/L)BORON, DISSOLVED (UG/L)CADMIUM DISSOLVED (UG/L)CHROMIUM, DISSOLVED (UG/L)COPPER, DISSOLVED (UG/L)IRON, DISSOLVED (UG/L)LEAD, DISSOLVED (UG/L)MANGANESE, DISSOLVED (UG/L)ZINC, DISSOLVED (UG/L)SELENIUM, DISSOLVED (UG/L)COLIFORM, FECAL, (COLS/ 100 ML)PHENOLS (UG/L)PHYTOPLANKTON, TOTAL (CELLS PER ML)SOLIDS, SUM OF CONSTITUENTS,DISSOLVED

MERCURY, DISSOLVED (UG/L)

SAM PLE MAXIMUMSIZE

159 22157 4130145 1100158 1600151 16141 999 170129 0144 3

142 224 1153 198 40098 7898 3298 11098 298 598 5098 34096 198 163 21 304 804 24 <34 44 304 54 <104 <204 7

47 376008 101 360

98 670

3 <0

.00

.00

.00

.00

.10

.30

.00

.68

.70

.40

.00

.30

.00

.00

.00

.00

.90

.60

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.50

STATISTICS

MINIMUM

0.440.

2.425.

2.7.

90.0.0.

0.0.0.

170.42.14.29.0.2.4.

110.0.0.

<1.30.50.<2.<3.2.

<10.<2.

<10.<20.

3.20.0.

360.305.

<0.

000000003020000014

00050100000000901090002000000000000000000000000000000000

50

MEAN

8.841391.8735.44

719.489.84--

135.370.120.78

0.430.340.11

237.0459.2921.1751.281.453.4913.96

186.730.479.32-------------- __--

5782.06----

429.49

--

STANDARD DEVIATION

6.66743.68108.65154.36

2.05--12.340.100.47

0.310.250.12

32.727.053.2813.120.290.575.30

43.480.102.65-- -------------- --

7012.43----

73.02

--


OR EQUAL50


25SHOWN

5(MEDIAN)

18.503014.99123.80992.0013.068.90

160.000.301.60

0.860.940.27

280.5070.1028.0076.202.004.4022.05

270.500.6013.00---- ----__----------

19699.96 --

567.05

--

15.401800.0020.00

778.7511.208.70

140.000.160.93

0.540.490.12

250.0064.0023.0057.251.603.9216.00

210.000.5011.00-------------- ------

9099.98----

469.50

--

9.001030.00

13.00700.00

9.408.50

136.000.100.66

0.410.240.09

240.0059.0021.0050.001.403.5014.00

190.000.509.70----------------------

4530.00----

429.50

--

2.00900.00

8.00617.50

8.308.30

130.000.040.48

0.240.160.06

210.0054.0019.0041.001.273.1011.00

150.000.408.27---- ------------ --

220.00----

372.75

--

0.00700.004.00

529.257.267.80

120.000.010.34

0.110.050.03

189.5048.8516.0035.001.102.497.40

130.000.303.55-- -------------- --

33.00----

320.00

--




SAMPLE REGRESSION INDEPENDE! SIZE COEFFICIENT VARIABLE

145156979696969696969696

SOLIDS, SUM OF CONSTITUENTS, DISSOLVED 96

* k

**

-25.*

-47.****

-272

6

7

KLOGQLOGQLOGQLOGQLOGQLOGQLOGQLOGQLOGQLOGQLOGQ

JT PTrrpTTQQTnw COEFFICIENT OF SIGNIFICANCE CONSTANT DETERMINATION PROBABILITY

(r 2 ) OF F

****

139*

199*.X.

**

1,275

0.07.29.28.33.53.41.51.46.10.24.48.55

0 .0011.0001.0001.0001.0001.0001.0001.0001.0017.0001.0001.0001


*&**

4.77 >v

9.15****

48.8

65

Table 1. Statistical summaries of water-quality data from the Powder River coaj basin, based on samples collected from October 1, 1974, to September 30, 1981--Continued

STATION NUMBER: 06646800 STATION NAME AND LOCATION: NORTH PLATTE RIVER NEAR GLENROCK, WYO. DRAINAGE AREA: 13,538 SQUARE MILES


WATER QUALITY CONSTITUENTSAM PLE SIZE

MAXIMUM MINIMUM MEANSTANDARD DEVIA TION

PERCENT OF SAMPLES IN WHICH VALUES WERE LESS THAN OR EQUAL TO THOSE SHOWN 95 75 50 25 5

(MEDIAN)

TEMPERATURE (DEC C) 75 26.50 0.00STREAMFLOW, INSTANTANEOUS (FT3/S) 84 3970.00 465.00SPECIFIC CONDUCTANCE (MICROSIEMENS) 4 845.00 550.00PH (UNITS) 4 8.70 8.20ALKALINITY (AS CAC03) 82 170.00 98.00NITROGEN, AMMONIA + ORGANIC TOTAL 1 0.29 0.29

(AS N)NITROGEN, N02+N03 DISSOLVED (AS N) 26 1.80 0.09PHOSPHORUS, TOTAL (AS P) 80 0.64 0.00HARDNESS (AS CAC03) 82 450.00 170.00CALCIUM DISSOLVED 82 92.00 44.00MAGNESIUM, DISSOLVED 82 37.00 14.00SODIUM, DISSOLVED 82 140.00 32.00SODIUM ADSORPTION RATIO 82 3.50 1.00POTASSIUM, DISSOLVED 82 4.70 0.30CHLORIDE, DISSOLVED 82 26.00 5.30SULFATE DISSOLVED 82 450.00 130.00FLUORIDE, DISSOLVED 82 0.80 0.30SILICA, DISSOLVED 82 17.00 1.50SELENIUM, DISSOLVED (UG/L) 1 3.00 3.00SOLIDS, SUM OF CONSTITUENTS, 82 963.00 308.00DISSOLVED

SEDIMENT, SUSPENDED 2 144.00 11.00

14.091508.64

138.02

0.560.12

250.8562.0622.7354.951.503.3514.56

204.270.528.83

6.49 23.50799.44 3489.99

0.400.11

45.0610.324.7918.730.400.744.32

56.980.102.45

20.00 14.001902.50 1210.00

9.00950.50

1.550.40

330.0079.7032.0090.852.204.60

23.00328.50

0.7012.00

0.890.13

272.5069.0025.0060.251.703.8017.00

222.500.6010.00

0.440.09

250.0062.0022.0053.001.503.3514.00

200.000.509.05

0.280.05

220.0053.0019.0041.751.203.0012.00160.000.507.57

3.40605.00

14.55 160.00 150.00 140.00 130.00 110.00

0.090.03

190.0046.0016.0036.001.102.118.09

140.000.403.94

458.12 101.33 642.95 501.50 455.50 384.50 340.00

66

Table 2. Statistical summaries of water-quality data from the Hanna coal field, based on samples collected from October 1, 1974, to September 30, 1981




STATION NUMBER: 06630000

Values in milligrams per liter, except as indicated;DEC C, degrees Celsius; FT3/S, cubic feet per second; NTU, Nephelometric turbidity units;MICROSIEMENS, microsiemens per centimeter at 25 degrees Celsius; UG/L, micrograms per liter;UG/KG, micrograms per kilogram; COLS/100 ML, colonies per 100 milliliters of water.*, value not included in table because coefficient of determination was less than 0.50,or significance of probability of the F-value was greater than 0.05, where F equals theratio of the regression mean square to the error mean square.K, specific-conductance value, in microsiemens per centimeter at 25 degrees Celsius;Q, instantaneous-streamflow value, in cubic feet per second; LOGQ, base 10 logarithm ofinstantaneous-streamflow value, in cubic feet per second]

STATION NAME AND LOCATION: NORTH PLATTE RIVER ABOVE SEMINOE RESERVOIR NEAR SINCLAIR, WYO. DRAINAGE AREA: 4,175 SQUARE MILES

DESCRIPTIVE STATISTICSCAM_

WATER QUALITY CONSTITUENT £££

SIZE


(AS N).NITROGEN, N02+N03 TOTAL (AS N)NITROGEN, N02+N03 DISSOLVED (AS N)PHOSPHORUS, TOTAL (AS P)HARDNESS (AS CAC03)CALCIUM DISSOLVEDMAGNESIUM, DISSOLVEDSODIUM, DISSOLVEDSODIUM ADSORPTION RATIOPOTASSIUM, DISSOLVEDCHLORIDE, DISSOLVEDSULFATE DISSOLVEDFLUORIDE, DISSOLVEDSILICA, DISSOLVEDCOLIFORM, FECAL, (COLS/ 100 ML)PCB, TOTAL (UG/L)PCB, TOTAL IN BOTTOM MATERIAL (UG/KG)SOLIDS, SUM OF CONSTITUENTS,DISSOLVED

8475835282528499

8227383838383838383838383799

83

MAXIMUM

24.008780.00600.00640.0013.208.70

180.000.552.20

0.182.200.47

280.0067.0028.0057.001.604.70

22.00210.00

0.7020.00160.000.002.00

463.00

MINIMUM

0125

1200

67

5000

000

631848001

2400100

109

.00

.00

.00

.00

.10

.60

.00

.05

.37

.00

.00

.00

.00

.00

.40

.00

.40

.30

.20

.00

.20

.00

.00

.00

.00

.00

MEAN

8.111270.65

19.07446.02

9.73

121.42

0.250.06

174.1246.5814.0328.500.932.7311.0798.230.4912.85 --

287.81

STANDARD DEVIA TION

7.591898.4566.48123.40

1.55

29.91 --

--0.560.07

52.2713.914.759.810.230.814.53

40.230.114.79 --

86.61


21.375818.00

61.00622.0012.088.60

164.00 --

2.090.19

248.0066.0021.8041.001.304.1618.00

176.000.7019.80------

411.00

75

15.001070.0020.00

548.7510.858.38

140.00

0.140.06

210.0058.0017.0036.001.103.3014.00

130.000.6017.00-- --

349.00

50 (MEDIAN)

6.75382.00

6.00465.00

9.758.15

130.00 --

--0.000.03

190.0050.0015.0031.000.902.8011.00

110.000.5013.00--

311.00

25

0.50280.00

3.00331.00

8.407.90

107.00 --

--0.000.02

130.0035.0010.0021.000.802.207.30

64.000.4010.00--

210.00

5

0.00171.60

1.00215.45

7.517.67

60.75--

--0.000.0176.4021.205.8411.000.501.324.2633.800.301.02

127.60



SIGNIFICANCE STANDARDPROBABILITY ERROR OF

OF F ESTIMATE


404141404040404040404040

*-196

.231

.433

.108

.0381

.0695

.00135**.279.695

LOGQLOGQ

KKKKKKKKKK

*99317.1

-21.7-2.90-3.02-4.20

.282**

-29.7-31.5

0.08.64.86.93.90.79.85.60.29.46.68.91

0.0748.0001.0001.0001.0001.0001.0001.0001.0003.0001.0001.0001

*77.812.214.54.572.453.70.139**

23.927.2

67

Table 2. Statistical summaries of water-quality data from the Hanna coal field, based on saopJes collected from October 1, 1974, to September 30, 1981 Continued

STATION NUMBER: 06630300 STATION NAME AND LOCATION: BIG DITCH NEAR COYOTE SPRINGS, WYO. DRAINAGE AREA: 110 SQUARE MILES



TEMPERATURE (DEC C)STREAMFLOW, INSTANTANEOUS (FT3/S)TURBIDITY (NTU)SPECIFIC CONDUCTANCE (MICROSIEMENS)OXYGEN, DISSOLVED (MG/L)OXYGEN DEMAND, BIOCHEMICAL,

5 DAY (MG/L).PH (UNITS)ALKALINITY (AS CAC03)NITROGEN, AMMONIA TOTAL (AS N)NITROGEN, AMMONIA + ORGANIC TOTAL

(AS N).NITROGEN, N02+N03 TOTAL (AS N)NITROGEN, N02+N03 DISSOLVED (AS N)PHOSPHORUS, TOTAL (AS P)HARDNESS (AS CAC03)CALCIUM DISSOLVEDMAGNESIUM, DISSOLVEDSODIUM, DISSOLVEDSODIUM ADSORPTION RATIOPOTASSIUM, DISSOLVEDCHLORIDE, DISSOLVEDSULFATE DISSOLVEDFLUORIDE, DISSOLVEDSILICA, DISSOLVEDARSENIC DISSOLVED (UG/L)BORON, DISSOLVED (UG/L)CADMIUM DISSOLVED (UG/L)CHROMIUM, DISSOLVED (UG/L)COPPER, DISSOLVED (UG/L)IRON, DISSOLVED (UG/L)LEAD, DISSOLVED (UG/L)MANGANESE, DISSOLVED (UG/L)ZINC, DISSOLVED (UG/L)SELENIUM, DISSOLVED (UG/L)SOLIDS, SUM OF CONSTITUENTS,DISSOLVED


SAM PLESIZE

17231717153

15171616

161

16171717171717171717171217121212171212121217

1212


MAXIMUM

21.0039.00

15000.006500.00

11.3010.00

8.60490.00

1.1013.00

6.800.7312.00

1800.00290.00280.00850.0012.0018.0083.00

3000.001.806.902.00

3100.003.00

<20.0019.00

4000.0017.0050.0060.002.00

4740.00

<0.5027300.00

MINIMUM MEAN

0.000.0078.00

1000.006.608.10

7.9078.000.031.30

0.020.730.06

300.0047.0013.00

100.002.505.7010.00

390.000.200.501.00

60.00<2.00

<20.002.00

40.00<2.00

<10.00<20.00

1.00674.00

<0.50534.00

10.746.15

1635.182933.53

8.77

277.59

0.404.02

1.60 1.84

812.35126.94119.47375.88

5.549.1534.12

1275.880.543.571.33

352.94 5.92

355.88 1.08

2113.65

4050.17

DEVIA- 95TION

6.66 219.11 34

3569.04 150001750.75 6500

1.33 11

8135.14 4900.35 12.85 13

1.75 6 3.05 12

479.56 180062.94 29080.45 280

245.54 8502.62 122.95 18

22.45 83781.26 3000

0.37 11.45 60.49 2

712.57 31003

<20.00 <204.70 19

950.19 4000175060

0.29 21240.83 4740

<o7490.57 27300

.00

.60

.00

.00

.30-

.60

.00

.10

.00

.80-.00.00.00.00.00.00.00.00.00.80.90.00.00.00.00.00.00.00.00.00.00.00

.50

.00

75

15.259.40

1300.004800.00

9.60

8.60417.00

0.604.75

2.70 2.05

1050.00150.00165.00575.00

7.4510.0051.00

1750.000.554.502.00

235.00<2.00

<20.008.00

200.002.75

50.0030.001.00

2965.00

<0.503092.50

OR EQUAL50

(MEDIAN)

12.003.20

480 . 002360.00

8.90

8.40250.00

0.343.30

0.92 0.73

730.00110.00110.00310.00

4.908.80

28.001100.00

0.403.301.00

180.00<2.00

<20.004.50

60.00<2.0040.0020.001.00

1860.00

<0.501505.00


25

3.0.

185.1385.

7.--

8.155.

0.2.

0. 0.

460.81.63.170.

3.6.

15.615.

0.2.1.

115.<2.

<20.3.

40.<2.

<10.<20.

1.1065.

<0.826.

5002000090

00001300

26

20005000003590500035550000000025000000000000

5075

SHOWN5

0.000.0078.00

1000.006.60

7.9078.000.031.30

0.02--0.06

300.0047.0013.00

100.002.505.7010.00

390.000.200.501.00

60.00<2.00

<20.002.00

40.00<2.00

<10.00<20.00

1.00674.00

<0.50534.00






171717 017171717171717171711

**.0685.244.0308.0394.132.00120*.00944.420.674*


KLOGQ

KKKKKKKKKKK

**

76.797.836.53.92

-10.42.01*

6.4243.6138

*


(r2 ) OF F

0.14.37.79.79.74.73.88.65.38.54.89.90.30

0....

.

.

132009700010001000100010001000100800007000100010802


**

64.422733.442.887.21.60*

15.7272398

*

68

Table 2.--Statistical summaries of water-quality data from the Hanna coal field, based on samples collected from October 1, 1974, to September 30, 1981--Coo.tin.ued

STATION NUMBER: 06634990 STATION NAME AND LOCATION: HANNA DRAW NEAR HANNA, WYO.DRAINAGE AREA: 22 SQUARE MILES




MINIMUM MEANSIZE


(AS N)NITROGEN, N02+N03 TOTAL (AS N)NITROGEN, N02+N03 DISSOLVED (AS N)PHOSPHORUS, TOTAL (AS P)HARDNESS (AS CAC03)CALCIUM DISSOLVEDMAGNESIUM, DISSOLVEDSODIUM, DISSOLVEDSODIUM ADSORPTION RATIOPOTASSIUM, DISSOLVEDCHLORIDE, DISSOLVEDSULFATE DISSOLVEDFLUORIDE, DISSOLVEDSILICA, DISSOLVEDARSENIC DISSOLVED (UG/L)BORON, DISSOLVED (UG/L)CADMIUM DISSOLVED (UG/L)CHROMIUM, DISSOLVED (UG/L)COPPER, DISSOLVED (UG/L)IRON, DISSOLVED (UG/L)LEAD, DISSOLVED (UG/L)MANGANESE, DISSOLVED (UG/L)ZINC, DISSOLVED (UG/L)SELENIUM, DISSOLVED (UG/L)SOLIDS, SUM OF CONSTITUENTS,DISSOLVED


3545343330123232

13132

311

31323232323232323232321632161616321616161632

1630

2645

200003800

1268

39600

24

209

1700310240300

312

1602000

0143

14003

2035

31018

48040

13050

125800

.00

.00

.00

.00

.00

.40

.70

.00

.12

.72

.00

.00

.01

.40

.00

.00

.00

.00

.20

.00

.00

.00

.50

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.80

.00

0.000.002.00

615.005.600.707.00

81.000.120.000.48

0.010.010.01

270.0060.0024.0027.000.705.404.00

220.000.204.00<1.0050.00<2.00

<20.00<2.0010.00<2.0020.00

<20.00<1.00

415.00

<0.509.00

10.412.72

998.982239.24

9.593.02--

284.69--0.121.97

0.30--0.52

1090.00207.28140.00175.28

2.208.30

20.831110.94

0.376.11--

130.00------

68.44--

262.50----

1840.00

--1948.33

DEVIA- 95 75TION

6.73 248.06 24

3596.59 11749934.89 3765

1.41 111.97 6

8102.48 392

__0.14 04.12 11

0.42 1__1.74 5

466.94 170082.15 31066.99 23385.81 2930.75 31.71 12

26.78 78524.43 1870

0.08 01.71 9

3232.71 587

32035

66.29 27718

138.15 480401

815.70 2933

16479.80 25744

OR EQUAL50


25SHOWN

5(MEDIAN)

.00 15.

.70 1.

.80 247.

.00 2900.

.95 10.

.40 4.

.70 8.

.10 379._.50 0..19 1.

.52 0._.56 0..00 1500..00 280..50 190..50 247..14 2..00 9..10 26..00 1575..50 0..77 6..00 1..49 100..00 2..00 <20..00 4..50 80..00 5..00 360..00 <20..00 1..00 2557.

.80 <0.

.98 329.

5040500070653000

1635

34

30000000508030500040680000000000000000000050

5075

10.000.2215.00

2400.009.552.358.20

318.50--0.100.97

0.14--0.04

1150.00230.00145.00195.00

2.408.3515.00

1150.000.406.001.00

90.00<2.00

<20.003.00

45.003.50

305.00<20.00

1.001950.00

<0.5095.50

5.500.107.50

1330.008.871.577.93

200.00--0.020.71

0.05--0.02

607.50122.5077.0084.501.437.338.65

565.000.305.30<1.0070.00<2.00

<20.002.00

30.00<2.00125.00<20.00<1.00

989.75

<0.5051.00

0.800.002.00

737.506.530.707.20

90.75--0.010.50

0.02--0.01

309.0064.5529.2036.750.835.474.39

259.000.204.07<1.0056.50<2.00

<20.00<2.0010.00<2.0020.00<20.00<1.00

480.00

<0.5020.55




SAMPLE SIZE


31313030303030303030303027


1120*

.0837

.435

.0781

.0594

.0832

.000721**.495.780*


KLOGQ

KKKKK

KLOGQ

KKKQ

*1980

95.195.329.23.79

-12.9.583

**

-16.764.9

*


(r 2 ) OF F

0.15.75.62.86.89.79.89

.83.45.19.87.89.46

0

.0001

.0336

.0001

.0001

.0001

.0001

.0001

.0001

.0001

.0161

.0001

.0001

.0001


JU

48964.8

17127.330.429.5

.324**

188270

*

69

Table 2.--Statistical summaries of water-quality data from the Hanna coal field, based on samples collected from October 1, 1974, to September 30, 1981--Continued

STATION NUMBER: 06635000 STATION NAME AND LOCATION: MEDICINE BOW RIVER ABOVE SEMINOE RESERVOIR NEAR HANNA, WYO. DRAINAGE AREA: 2,338 SQUARE MILES

DESCRIPTIVE


STATISTICSSAM

PLE MAXIMUM MINIMUM MEANSIZE

TEMPERATURE (DEC C)STREAMFLOW, INSTANTANEOUS (FT3/S)SPECIFIC CONDUCTANCE (MICROSIEMENS)PH (UNITS)ALKALINITY (AS CAC03)NITROGEN, N02+N03 DISSOLVED (AS N)PHOSPHORUS, TOTAL (AS P)CARBON, ORGANIC DISSOLVEDCARBON, ORGANIC SUSPENDEDHARDNESS (AS CAC03)CALCIUM DISSOLVEDMAGNESIUM, DISSOLVEDSODIUM, DISSOLVEDSODIUM ADSORPTION RATIOPOTASSIUM, DISSOLVEDCHLORIDE, DISSOLVEDSULFATE DISSOLVEDFLUORIDE, DISSOLVEDSILICA, DISSOLVEDARSENIC DISSOLVED (UG/L)CADMIUM DISSOLVED (UG/L)CHROMIUM, DISSOLVED (UG/L)COPPER, DISSOLVED (UG/L)IRON, DISSOLVED (UG/L)LEAD, DISSOLVED (UG/L)MANGANESE, DISSOLVED (UG/L)ZINC, DISSOLVED (UG/L)SELENIUM, DISSOLVED (UG/L)SOLIDS, SUM OF CONSTITUENTS,DISSOLVED


91791611862482

11

86868686868686868684888888888

86

886

2722201950

8221

5241

1100270110200

31480

110001242

<20<20190

430308

1720

03770

.00 0.

.00 3.

.00 700.

.90 8.

.00 81.

.50 0.

.20 0.

.10 4.

.30 1.

.00 160.

.00 31.

.00 13.

.00 26.

.70 0.

.00 0.

.00 3.

.00 130.

.90 0.

.00 0.

.00 <1.

.00 <2.

.00 <20.

.00 <20.

.00 10.

.00 <2.

.00 <10.

.00 <20.

.00 <1.

.00 269.

.20 <0.

.00 3.

0080002000000010300000000090206000200000000000000000000000

1000

8.58266.551378.13

--

149.710.710.14----

497.33115.9950.6696.621.863.61

29.69504.58

0.546.08-------------- --

901.58

--

336.02

STANDARD DEVIATION

7.94432.37366.10

--

36.661.220.34----

191.1543.5621.5840.860.561.67

16.16217.75

0.142.52---- ------ --

338.62

--

556.43


OR EQUAL50


25SHOWN

5(MEDIAN)

22.701399.991950.00

8.90211.95

4.720.60

769.50180.0089.50170.002.906.29

55.65780.000.809.95 -- ----

1349.50

--

1422.50

14.00345.001621.25

8.50180.000.850.09--

630.00140.0064.50120.002.204.00

41.00645.00

0.607.90---- ------ ----

1127.50

--

412.00

8.5054.00

1440.008.40

150.000.270.04----

535.00130.0053.5093.501.903.40

31.00540.00

0.606.10------ ----------

977.00

--

92.00

0.5031.00

1097.508.30

120.000.040.02 --

337.5083.5033.2571.501.402.8716.00

337.500.404.30-- ----------

641.25

--

52.00

0.009.20

700.008.20

90.000.000.01----

173.5043.7017.3532.351.001.505.57

153.500.300.90 ------ --

317.70

--

17.40




SAMPLE


SIZE

131212121212121212121212

REGRESSIONCOEFFICIENT OF SIGNIFICANCE

INDEPENDENT REGRESSION TMTTFRMTNATTnN PRORARTLTTYCOEFFICIENT

-480*.495

-78.8.0514****.572.837*

VARIABLE

LOGQLOGQ

KLOGQ

KKKKKKK

LOGQ

CONSTANT

2140

-71

272-9

-161-85

*

.3

.09JL

*

*

*

.2*

(r 2 )

0.50.04.80.69.91.44.12.37.37.88.91.21

0

OF F

.0070

.524

.0001

.0009

.0001

.0181

.271

.0352

.0355

.0001

.0001

.136


294*

10932.47.25***/v

92.6117

*

70

Table 3.--Statistical summaries of water-quality data from the Green River coal region, based on samples collected from October 1, 1974, to September 30, 1981




Values in milligrams per liter, except as indicated; DEC C, degrees Celsius;FT3/S, cubic feet per second; NTH, Nephelometric turbidity units; MICROSIEMENS, microsiemensper centimeter at 25 degrees Celsius; UG/L, micrograms per liter; UG/KG, micrograms perkilogram; COLS/100 ML, colonies per 100 milliliters of water. CELLS PER ML, cells permilliliter of water.*, value not included in table because coefficient of determination was less than 0.50,or significance of probability of the F-value was greater than 0.05, where F equals theratio of the regression mean square to the error mean square.K, specific-conductance value, in microsiemens per centimeter at 25 degrees Celsius;Q, instantaneous-streamflow value, in cubic feet per second; LOGQ, base 10 logarithm ofinstantaneous-streamflow value, in cubic feet per second]

STATION NUMBER: 09188500 STATION NAME AND LOCATION: GREEN RIVER AT WARREN BRIDGE, NEAR DANIEL, WYO. DRAINAGE AREA: 468 SQUARE MILES


WATER QUALITY CONSTITUENTSAM PLE SIZE

MAXIMUM MINIMUMSTANDARD

MEAN DEVIA TION

PERCENT OF SAMPLES IN WHICH VALUES WERE LESS THAN OR EQUAL TO THOSE SHOWN95 75 50

(MEDIAN)25 5

SUMMARY OF DATA COLLECTED AT PERIODIC INTERVALS

TEMPERATURE (DEG C)STREAMFLOW, INSTANTANEOUS (FT3/S)TURBIDITY (NTU)SPECIFIC CONDUCTANCE (MICROSIEMENS)OXYGEN, DISSOLVEDOXYGEN DEMAND, BIOCHEMICAL, 5 DAYPH (UNITS)ALKALINITY (AS CAC03)NITROGEN, AMMONIA, DISSOLVED (AS N)NITROGEN, AMMONIA TOTAL (AS N)NITROGEN, AMMONIA + ORGANIC TOTAL

(AS N)NITROGEN, N02+N03 TOTAL (AS N)NITROGEN, N02+N03 DISSOLVED (AS N)PHOSPHORUS, TOTAL (AS P)PHOSPHORUS, ORTHO, DISSOLVED (AS P)HARDNESS (AS CAC03)CALCIUM DISSOLVEDMAGNESIUM, DISSOLVEDSODIUM, DISSOLVEDSODIUM ADSORPTION RATIOPOTASSIUM, DISSOLVEDCHLORIDE, DISSOLVEDSULFATE DISSOLVEDFLUORIDE, DISSOLVEDSILICA, DISSOLVEDARSENIC DISSOLVED (UG/L)BARIUM, DISSOLVED (UG/L)BORON, DISSOLVED (UG/L)CADMIUM, DISSOLVED (UG/L)CHROMIUM, DISSOLVED (UG/L)COPPER, DISSOLVED (UG/L)IRON, DISSOLVED (UG/L)LEAD, DISSOLVED (UG/L)MANGANESE, DISSOLVED (UG/L)ZINC, DISSOLVED (UG/L)SELENIUM, DISSOLVED (UG/L)PHYTOPLANKTON, TOTAL (CELLS PER ML)SOLIDS, SUM OF CONSTITUENTS,DISSOLVED


137124126135872

4789325

179553

8989898989898788878921

2022262522

1888

254

203620

156801188

150005

0000

3601002611042

210081

<100320<2

<20<2

5703

20<20<1

1100438

0216

.00

.00

.00

.00

.00

.20

.80

.00

.16

.30

.00

.06

.73

.14

.14

.00

.00

.00

.00

.30

.40

.70

.00

.60

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.70

.00

0.0065.000.00

116.007.100.507.50

33.000.010.010.11

0.060.000.000.01

49.0015.002.801.300.100.600.1018.000.100.60

<1.00<100.00<20.00<2.00

<20.00<2.0020.00<2.00

<10.00<20.00<1.0029.0070.00

<0.102.00

6.62574.40

2.04380.26

9.35----

98.01------

--0.070.02--

214.4562.7213.953.400.101.301.25

117.810.264.88------ --------------

308.83266.18

--18.94

6.51695.67

2.26155.69

1.00----

32.89------

--0.090.02--

88.4825.995.731.340.020.570.51

59.030.112.04----------------------

366.72109.83

32.90

17.552005.00

6.00620.0010.70--8.70

140.50------

--0.190.07

325.0097.0021.004.850.102.202.22

200.000.407.45----

306.00----------------

1100.00410.55

--

68.50

12.50829.50

2.00520.0010.20--8.20

123.00------

--0.090.03--

290.0086.0019.004.150.101.501.50

170.000.306.80----

30.00 --------------

380.00367.25

--25.00

6.00261.50

1.00390.00

9.70--8.10

110.00------

--0.060.02--

220.0064.0015.003.500.101.201.20

120.000.305.10----

<20.00-- ---- ------

140.00274.00

--7.00

0.00122.50

1.00240.00

8.60--7.80

67.00-- --

--0.010.01--

130.0039.008.852.450.101.000.90

63.000.202.95----

<20.00----------------

68.25160.25

--4.00

0.0085.000.00

139.007.62--7.54

40.50------

--0.000.01--

70.0021.004.251.550.100.700.40

25.350.101.80----

<20.00----------------

29.0085.60

--2.00

71

Table 3.--Statistical summaries of water-guaJity data from the Green River coal region, based on samples collected from October 1, 1974, to September 30, 1981--Continued

STATION NUMBER: 09188500 STATION NAME AND LOCATION: GREEN RIVER AT WARREN BRIDGE, NEAR DANIEL, WYO.--Continued






1131217373737373737371727252

*-259

.203

.582

.171

.0371

.00645*-%.*.366.713*

QLOGQ

KKKKKQQQKKQ

*1,010

17.8-19.8-6.10-1.02

.761-i-

**

-32.0-22.8

/v

0.41.64.75.93.93.90.74.00.14.16.88.93.27

0.0001.0001.0001.0001.0001.0001.0001.604.0012.0005.0001.0001.0001

-U

91.417.524.07.211.81.561

&

"V

19.829.8

-V

72

Table 3.--Statistical summaries of water-quality data from the Green River coal region, based on samples collected from October 1, 1974, to September 30, 1981--Continued

STATION NUMBER: 09192600 STATION NAME AND LOCATION: GREEN RIVER NEAR BIG PINEY, WYO.DRAINAGE AREA: 1,260 SQUARE MILES




MINIMUM MEANSIZE

TEMPERATURE (DEC C)STREAMFLOW, INSTANTANEOUS (FT3/S)TURBIDITY (NTU)SPECIFIC CONDUCTANCE (MICROSIEMENS)PH (UNITS)ALKALINITY (AS CAC03)NITROGEN, AMMONIA + ORGANIC TOTAL

(AS N)NITROGEN, N02+N03 DISSOLVED (AS N)PHOSPHORUS, TOTAL (AS P)PHOSPHORUS, ORTHO, DISSOLVED (AS P)HARDNESS (AS CAC03)CALCIUM DISSOLVEDMAGNESIUM, DISSOLVEDSODIUM, DISSOLVEDSODIUM ADSORPTION RATIOPOTASSIUM, DISSOLVEDCHLORIDE, DISSOLVEDSULFATE DISSOLVEDFLUORIDE, DISSOLVEDSILICA, DISSOLVEDBORON, DISSOLVED (UG/L)IRON, DISSOLVED (UG/L)MANGANESE, DISSOLVED (UG/L)SOLIDS, SUM OF CONSTITUENTS,DISSOLVED

SEDIMENT, SUSPENDED

8382347739812

2260

182828282828278828181121

80

42

206680

50760

8221

1

000

32088408923

19250

110

<20608

562

406

.00

.00

.00

.00

.90

.00

.20

.73

.22

.01

.00

.00

.00

.00

.40

.90

.00

.00

.80

.00

.00

.00

.00

.00

.00

0.006.500.00

180.007.60

62.000.15

0.000.000.01

59.0017.004.003.300.100.200.209.900.100.10

<20.00<10.00

8.0086.00

2.00

6.51637.40

5.56449.14

--146.40

0.070.03--

223.1362.6316.1911.610.341.483.93

92.450.325.89-- --

287.94

42.29

DEVIA- 95TION

6.94 191033.99 2100

11.09 35125.56 623

832.00 180

0.16 00.05 0--

62.48 30018.14 855.27 2211.98 290.31 00.62 23.85 14

42.82 1400.19 02.07 8__--__

88.39 444

82.72 251

75EQUAL50


25SHOWN

5(MEDIAN)

.40

.00

.00

.00

.50

.00-

.66

.20-.00.00.85.55.87.77.00.00.50.79---.10

.95

13.50513.25

2.00550.00

8.30170.00

--

0.060.03--

280.0079.0019.0012.000.301.824.75

120.000.407.25------

341.75

32.00

4.50230.00

1.00460 . 00

8.10160.00

0.010.01--

240.0066.5016.508.600.201.402.35

100.000.306.20------

317.00

12.00

0.00164.00

1.00340.00

7.90120.00

--

0.000.01

170.0044.0012.756.500.201.101.70

58.000.204.30------

231.50

6.00

0.00105.80

0.75229.00

7.7082.80--

0.000.00--

120.0033.608.134.360.200.540.79

27.150.102.22-- --

142.35

2.00




SAMPLE SIZE


34777677777777777773777541


0.00832*~u

.408

.109

.0315****.258.562*


QLOGQ

KKKKKKKKKKQ

REGRESSION CONSTANT

-0.246.'.

*40.813.92.10j.***

-24.931.6*


(r 2 )

0.62.41.49.70.59.58.20.11.21.10.70.72.48


OF F

0 .0001.0001.0001.0001.0001.0001.0001.0027.0001.0068.0001.0001.0001


6.91»'-

*33.611.43.38*j.**

21.343.3

*

73

Table 3.--Statistical summaries of water-quality data from the Green River coal region, based on samples collected from October 1, 1974, to September 30, 1981 --Continued

STATION NUMBER: 09196500 STATION NAME AND LOCATION: PINE CREEK ABOVE FREMONT LAKE, WYO. DRAINAGE AREA: 76 SQUARE MILES



TEMPERATURE (DEC C)STREAMFLOW, INSTANTANEOUS (FT3/S)TURBIDITY (NTU)SPECIFIC CONDUCTANCE (MICROSIEMENS)OXYGEN, DISSOLVEDOXYGEN DEMAND, BIOCHEMICAL, 5 DAYPH (UNITS)ALKALINITY (AS CAC03)NITROGEN, AMMONIA TOTAL (AS N)NITROGEN, N02+N03 TOTAL (AS N)NITROGEN, N02+N03 DISSOLVED (AS N)PHOSPHORUS, TOTAL (AS P)PHOSPHORUS, ORTHO, DISSOLVED (AS P)HARDNESS (AS CAC03)CALCIUM DISSOLVEDMAGNESIUM, DISSOLVEDSODIUM, DISSOLVEDSODIUM ADSORPTION RATIOPOTASSIUM, DISSOLVEDCHLORIDE, DISSOLVEDSULFATE DISSOLVEDFLUORIDE, DISSOLVEDSILICA, DISSOLVEDARSENIC DISSOLVED (UG/L)BARIUM, DISSOLVED (UG/L)BORON, DISSOLVED (UG/L)CADMIUM, DISSOLVED (UG/L)COPPER, DISSOLVED (UG/L)IRON, DISSOLVED (UG/L)LEAD, DISSOLVED (UG/L)MANGANESE, DISSOLVED (UG/L)ZINC, DISSOLVED (UG/L)SELENIUM, DISSOLVED (UG/L)PHYTOPLANKTON, TOTAL (CELLS PER ML)SOLIDS, SUM OF CONSTITUENTS,MERCURY DISSOLVED (UG/L)SEDIMENT, SUSPENDED



49493439213

1323862

13131313131113136

1322

1322

1328222

112

41

171680

2230

807

1500000

1551100070319

<20<1

<10120<10<10<3<10

26<015

SAMPLE SIZE


31391010101010101010101036

.00

.00

.00

.00

.10

.80

.70

.00

.06

.07

.11

.02

.01

.00

.40

.20

.40

.20

.70

.10

.40

.10

.70

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.50

.00

0.004.200.0010.007.200.807.503.000.000.020.010.010.015.001.500.100.300.000.200.101.400.000.60<1.006.00

<20.00<1.00

<10.00<10.00<10.00<10.00<3.00<1.000.008.00<0.501.00


*************

5.80288.47

.7626.82------7.46----------9.153.060.360.730.120.460.413.06 2.09------ ------ ------15.36--4.85

STANDARD DEVIATION

4.89411.19

0.5034.11 ----3.62----------3.671.040.390.420.060.160.241.93--0.82----------------------5.94 3.52

REGRESSION



25SHOWN

5(MEDIAN)

15.001389.99

1.2552.00------15.00-- ------15.005.401.201.400.200.701.107.40--3.70----

<20.00----

120.00---- ----

26.00--12.90

9.00353.00

1.0025.00------9.00----------13.003.900.411.150.150.600.504.90 2.55----

<20.00----

60.00---- ----

21.00--7.00

5.00106.00

1.0022.00------7.00----------8.002.800.200.600.100.500.402.00--2.30----

<20.00----

30.00---- ----13.00--4.00

1.2522.000.0018.00------5.00------ --6.502.350.100.350.100.300.301.55--1.45----

<20.00----

20.00---- --

10.00--2.00

0.006.450.0012.00 ----3.00----------5.001.500.100.300.000.200.101.40--0.60----

<20.00----

<10.00----------8.00--2.00

STATISTICS

INDEPENDENT REGRESSION ^FT VARIABLE CONSTANT

LOGQLOGQLOGQ

KKKKQKKKKK

****« * « *-Ar

***"

FFICIENT ( ERMINATIOJ (r 2 )

0.44.00.23.29.18.33.28.19.32.06.18.29.21

)F SIGNIFICANCE f PROBABILITY

OF F

0 .0001.715.0933.107.225.0816.119.202.0882.497.224.109.0052


k*******">~ &***


STATION NUMBER: 09203000 STATION NAME AND LOCATION: EAST FORK RIVER NEAR BIG SANDY, WYO. DRAINAGE AREA: 79 SQUARE MILES



TEMPERATURE (DEC C)STREAMFLOW, INSTANTANEOUS (FT3/S)TURBIDITY (NTU)SPECIFIC CONDUCTANCE (MICROSIEMENS)OXYGEN, DISSOLVEDOXYGEN DEMAND, BIOCHEMICAL, 5 DAYPH (UNITS)ALKALINITY (AS CAC03)NITROGEN, AMMONIA DISSOLVED (AS N)NITROGEN, AMMONIA TOTAL (AS N)NITROGEN, AMMONIA + ORGANIC TOTALNITROGEN, N02+N03 TOTAL (AS N)NITROGEN, N02+N03 DISSOLVED (AS N)PHOSPHORUS, TOTAL (AS P)PHOSPHORUS, ORTHO, DISSOLVED (AS P)HARDNESS (AS CAC03)CALCIUM DISSOLVEDMAGNESIUM, DISSOLVEDSODIUM, DISSOLVEDSODIUM ADSORPTION RATIOPOTASSIUM, DISSOLVEDCHLORIDE, DISSOLVEDSULFATE DISSOLVEDFLUORIDE, DISSOLVEDSILICA, DISSOLVEDBORON, DISSOLVED (UG/L)IRON, DISSOLVED (UG/L)MANGANESE, DISSOLVED (UG/L)PHYTOPLANKTON , TOTAL (CELLS PER ML)SOLIDS, SUM OF CONSTITUENTS,DISSOLVED

SEDIMENT, SUSPENDED

SAM PLE SIZE

51524044314

112332664

11111111111111116

11111182

11

49

MAXIMUM

21.00886.00

2.00165.0011.805.307.80

29.000.020.060.700.021.20

12.000.03

46.0015.002.704.200.302.502.60

25.000.108.30

30.00310.0030.00

390.0074.00

37.00

MINIMUM

0.001.200.0012.008.405.306.606.000.020.020.300.010.020.010.018.002.400.400.400.000.300.201.600.102.70

<20.0060.00<10.00370.0012.00

1.00

STANDARD MEAN DEVIA

TION

6177

143---

15-------

216110007-4-

120--

33

7

.37

.58

.10

.98---.73-------.00.45.18.75.16.92.89.13-.69-.00--.36

.08

6.39285.28

0.3829.07-- --8.61--------------12.924.120.791.240.080.640.706.95--1.78--

68.70----

19.97

7.37


19.20860.20

2.00113.75 ----

29.00--------------

46.0015.002.704.200.302.502.60

25.00--8.30

30.00310.00

----

74.00

28.50

75

12.00194.00

1.0051.50------

25.00--------------

32.009.801.902.500.201.301.20

11.00--6.30

<20.00140.00

----

52.00

8.00

50 (MEDIAN)

5.0022.001.00

39.00------

12.00--------------13.004.600.801.200.200.600.804.40--4.50

<20.00100.00

----

27.00

4.00

25

0.0010.501.00

24.25------8.00--------------12.003.500.700.800.100.500.302.60--3.20

<20.0070.00----

18.00

3.00

5

0.002.481.00

14.25------6.00--------------8.002.400.400.400.000.300.201.60--2.70

<20.0060.00----

12.00

1.50


WATER QUALITY CONSTITUENT SAMPLE REGRESSION INDEPENDENT SIZE COEFFICIENT VARIABLE




36441111111111111111111142

-A-

-A-

0.157.264.0848.0123.0225*JL

n

.145

.415*v

QLOGQ

KKKKKKKKKKQ

*-A-

8.068.112.30.581.653

-A-

-A-

*

.021713.0*

0.04.18.68.86.87.50.68.24.41.36.90.89.25

0.227.0040.0017.0001.0001.0149.0017.124.0338.0531.0001.0001.0008

-A-

5.125.121.55.587.732

-A--vVr

2.326.95

75

Table 3. Statistical summaries of water-quality data from the Green River coal region, based on samples collected from October 1, 1974, to September 30, 1981 --Continued

STATION NUMBER: 09205000 STATION NAME AND LOCATION: NEW FORK RIVER NEAR BIG PINEY, WYO. DRAINAGE AREA: 1,230 SQUARE MILES


WATER QUALITY CONSTITUENTSAM PLE MAXIMUM SIZE

STANDARD MINIMUM MEAN DEVIA

TION

SUMMARY OF DATA COLLECTED AT PERIODIC

TEMPERATURE (DEC C)STREAMFLOW, INSTANTANEOUS (FT3/S)TURBIDITY (NTU)SPECIFIC CONDUCTANCE (MICROSIEMENS)OXYGEN, DISSOLVEDOXYGEN DEMAND, BIOCHEMICAL, 5 DAYPH (UNITS)ALKALINITY (AS CAC03)NITROGEN, AMMONIA DISSOLVED (AS N)NITROGEN, AMMONIA TOTAL (AS N)NITROGEN, AMMONIA + ORGANIC TOTALNITROGEN, N02+N03 TOTAL (AS N)NITROGEN, N02+N03 DISSOLVED (AS N)PHOSPHORUS, TOTAL (AS P)HARDNESS (AS CAC03)CALCIUM DISSOLVEDMAGNESIUM, DISSOLVEDSODIUM, DISSOLVEDSODIUM ADSORPTION RATIOPOTASSIUM, DISSOLVEDCHLORIDE, DISSOLVEDSULFATE DISSOLVEDFLUORIDE, DISSOLVEDSILICA, DISSOLVEDARSENIC, DISSOLVED (UG/L)BARIUM, DISSOLVED (UG/L)BORON, DISSOLVED (UG/L)CADMIUM, DISSOLVED (UG/L)CHROMIUM, DISSOLVED (UG/L)COPPER, DISSOLVED (UG/L)IRON, DISSOLVED (UG/L)LEAD, DISSOLVED (UG/L)MANGANESE, DISSOLVED (UG/L)ZINC, DISSOLVED (UG/L)SELENIUM, DISSOLVED, UG/L)PHYTOPLANKTON, TOTAL (CELLS PER ML)SOLIDS, SUM OF CONSTITUENTS,DISSOLVED


1029042100

21

49821232

24758282828282818082798112311231321

1582

150

255660

153401069

123000010

140341219039

460

23<1

<10030<2

<202

80<23020<1

1500173

<0476

.00

.00

.00

.00

.80

.20

.00

.00

.02

.08

.74

.03

.60

.18

.00

.00

.00

.00

.80

.50

.30

.00

.50

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.10

.00

0.00165.000.00

65.009.706.207.10

23.000.020.060.110.010.000.00

23.006.701.503.000.200.100.500.000.001.10

<1.00<100.00<20.00<2.00

<20.00<2.0030.00<2.00

<10.00<20.00<1.0066.0036.00

<0.102.00

8.02896.32

2.71192.88

----

87.93--------0.110.03

84.3323.955.819.390.451.642.9512.360.238.46----------------------

584.07119.13

--30.42

7.411241.27

3.4157.42------

23.08--------0.330.03

22.006.262.052.900.110.491.867.170.082.92---------------- ----

451.9830.26

--70.68

PERCENT OF SAMPLES INWERE LESS THAN95

INTERVALS

19.923931.99

14.25269.80

----8.85

114.55--------1.300.10

110.0031.009.4813.850.602.307.09

26.550.3012.00-- ------------------

1500.00160.00

--115.05

75

15.00873.25

3.00230.00

----8.10

100.75--------0.070.03

98.0028.006.7211.000.501.903.6014.000.309.70----------------------

930.00136.25

--31.00

OR EQUALWHICH VALUESTO THOSE

50 25 (MEDIAN)

8.50335.00

2.00210.00

----7.90

98.00--------0.030.02

89.0026.005.759.900.501.602.2012.000.208.40----------------------

510.00126.50

--8.00

0.00259.50

1.00160.00

----7.60

82.00--------0.000.01

80.0022.005.027.970.401.401.808.900.206.85----------------------

190.00115.00

--5.00

SHOWN5

0.00177.750.1575.00----7.30

29.90--------0.000.0034.008.301.833.500.300.800.903.000.103.97----------------------

66.0050.15

--2.00




SAMPLE SIZE


42876565656565656463656550


-105*

.465

.409

.119*.0481****.570*


LOGQLOGQ

KKKKKKKKKKK


469-42

-

5

*

.54

.78

.164*.194 n

*

"&

*

.50*

0.13.61.85.73.81.46.66.39.33.04.37.77.13

0,.0204.0001.0001.0001.0001.0001.0001.0001.0001.105.0001.0001.0101


*35.510.012.62.95*1.74*

JL

*

15.9*

76


STATION NUMBER: 09208000 STATION NAME AND LOCATION: LA BARGE CREEK NEAR LA BARGE MEADOWS RANGER STATION, WYO. DRAINAGE AREA: 6 SQUARE MILES

DESCRIPTIVE


STATISTICSSTANDARD

MINIMUM MEAN DEVIA-SIZE


(AS N)NITROGEN, N02+N03 TOTAL (AS N)NITROGEN, N02+N03 DISSOLVED (AS N)PHOSPHORUS, TOTAL (AS P)PHOSPHORUS, ORTHO, DISSOLVED (AS P)HARDNESS (AS CAC03)CALCIUM DISSOLVEDMAGNESIUM, DISSOLVEDSODIUM, DISSOLVEDSODIUM ADSORPTION RATIOPOTASSIUM, DISSOLVEDCHLORIDE, DISSOLVEDSULFATE DISSOLVEDFLUORIDE, DISSOLVEDSILICA, DISSOLVEDBORON, DISSOLVED (UG/L)IRON, DISSOLVED (UG/L)MANGANESE, DISSOLVED (UG/L)PHYTOPLANKTON, TOTAL (CELLS PER ML)SOLIDS, SUM OF CONSTITUENTS,DISSOLVED

SEDIMENT, SUSPENDED

50503747413

13311

11085

13131313131313131313131395

13

44

17.00126.00

7.00350.00

8.800.108.40

180.000.040.010.30

0.050.210.030.06

210.0058.0016.003.300.100.802.60

31.000.206.80

<20.00130.00150.00590.00227.00

66.00

0.2.1.

130.7.0.8.

88.0.0.0.

0.0.0.0.

97.27.7.0.0.0.0.

12.0.4.

<20.20.

<10.0.

109.

2.

0030000000102000010130

05010201000010800030500010100000000000

00

5.6022.262.00

268.26-- --

126.00------

--0.09----

143.3839.6910.711.570.050.480.88

20.850.154.98--

50.00----

155.31

10.70

TION

5.1030.371.83

55.19------

27.66------

--0.08----

34.469.342.800.790.050.170.557.210.050.77--

36.51----

35.75

11.07

PERCENT OF SAMPLES INWERE LESS THAN OR95 75

EQUAL50


25SHOWN

5(MEDIAN)

15.1296.007.00

348.00------

180.00------

--0.21----

210.0058.0016.003.300.100.802.60

31.000.206.80--

130.00--

227.00

29.00

10.6230.252.00

300.00------

145.00

--0.16--

165.0046.5012.501.850.100.651.00

28.000.205.35--

85.00----

177.50

13.00

4.006.651.00

280.00-- --

128.00 ----

0.05----

150.0040.0011.001.300.000.400.70

24.000.204.80--

30.00 --

158.00

7.00

1.003.901.00

238.00------

104.00------

0.03--

115.0031.508.001.100.000.350.6014.000.104.25--

20.00----

122.50

4.00

0.003.001.00

151.00------

88.00------

--0.01

97.0027.007.100.800.000.300.5012.000.104.10--

20.00----

109.00

2.00






36471212121212121212121241

2.68*.286.353.0970.0307****.0762.381*


LOGQLOGQ

KKKKQKQQKKQ

COEFFICIENT OFCONSTANT DETERMINATION

(r 2 )

-0.*

53.53.15.2.***JL

1.

58.*

682

18092

406

0.52.30.57.55.58.64.06.05.27.07.61.60.39


OF F

0 .0001.0001.0043.0055.0040.0018.448.508.0842.401.0026.0029.0001


1.30*

19.124.56.391.79***i\

4.6923.9*

77


STATION NUMBER: 09209400 STATION NAME AND LOCATION: GREEN RIVER NEAR LABARGE, WYO.DRAINAGE AREA: 3,910 SQUARE MILES




(AS N)NITROGEN, N02+N03 TOTAL (AS N)NITROGEN, N02+N03 DISSOLVED (AS N)PHOSPHORUS, TOTAL (AS P)PHOSPHORUS, ORTHO, DISSOLVED (AS P)CARBON, ORGANIC DISSOLVEDCARBON, ORGANIC SUSPENDEDHARDNESS (AS CAC03)CALCIUM DISSOLVEDMAGNESIUM, DISSOLVEDSODIUM, DISSOLVEDSODIUM ADSORPTION RATIOPOTASSIUM, DISSOLVEDCHLORIDE, DISSOLVEDSULFATE DISSOLVEDFLUORIDE, DISSOLVEDSILICA, DISSOLVEDARSENIC DISSOLVED (UG/L)BORON, DISSOLVED (UG/L)CADMIUM DISSOLVED (UG/L)CHROMIUM, DISSOLVED (UG/L)COPPER, DISSOLVED (UG/L)IRON, DISSOLVED (UG/L)LEAD, DISSOLVED (UG/L)MANGANESE, DISSOLVED (UG/L)ZINC, DISSOLVED (UG/L)SELENIUM, DISSOLVED (UG/L)COLIFORM, FECAL, (COLS/100 ML)PCB, TOTAL (UG/L)

SAM PLE SIZE

161144137147722582842

5463

602870

164

84848484848184848382152

151515181517151578

PCB, TOTAL IN BOTTOM MATERIAL (UG/KG) 9PHYTOPLANKTON, TOTAL (CELLS PER ML)SOLIDS, SUM OF CONSTITUENTS,


483

1592

MAXIMUM

22.0011100.001100.00710.0011.807.708.70

220.000.150.281.90

0.850.830.460.0111.001.00

330.0084.0023.0075.002.304.0012.00

200.000.8015.002.00

40.005.00

<20.0018.0080.006.00

30.00<20.00<1.00100.000.000.00

4400.00458.00

1.30880.00

MINIMUM

0.00228.00

0.00160.006.200.907.30

77.000.050.000.12

0.000.000.000.012.400.10

88.0023.006.706.000.200.100.40

20.000.000.80

<1.0040.00<2.00

<20.00<2.00

<10.00<2.00

<10.00<20.00<1.0021.000.000.00

330.00121.00

<0.502.00

STANDARD MEAN DEVIA

TION

9.022058.26

23.16367.56

9.383.07--

139.61--0.050.54

0.090.090.04-- --

167.8544.3813.3216.970.571.764.31

56.260.286.83__--------------------

228.96

--63.23

7.612416.90100.4288.391.261.60--

27.26--0.050.35

0.150.180.06------

42.4710.763.339.170.280.652.13

24.330.102.36--__------------------ ----

57.67

--121.29

PERCENT OF SAMPLES IN WHICH VALUESWERE LESS THAN OR EQUAL TO THOSE SHOWN95

208342

954961178

178-01

000---

220581930

138

790

102-5

<2018806

30<20<1----

291

1291

.00

.48

.00

.40

.47

.19

.40

.00-.14.30

.35

.65

.13---.00.75.75.75.07.26.72.75.40.77.00-.00.00.00.00.00.00.00.00----.40

.30

.29

75

16.002797.50

15.00430.0010.373.758.20

160.00--0.070.68

0.110.080.04------

200.0052.7516.0019.000.602.005.4771.750.308.121.00--2.00

<20.004.00

42.503.00

<10.00<20.00<1.00 ------

265.00

<0.5072.25

50 (MEDIAN)

9.00839.50

3.00370.00

9.502.808.00

144.00--0.040.43

0.040.020.02------

170.0043.5013.0016.000.501.704.00

55.000.307.101.00--

<2.00<20.00

2.0030.00<2.00

<10.00<20.00<1.00--------

239.00

<0.5015.00

25

0.00582.00

2.00300.00

8.322.107.87

120.00--0.030.28

0.020.000.01------

140.0037.0011.0012.250.401.402.82

40.250.205.50<1.00--

<2.00<20.00<2.0015.00<2.00

<10.00<20.00<1.00--------

187.00

<0.509.00

5

0.00420.00

1.00220.00

7.260.907.52

86.00--0.010.14

0.000.000.00------

100.0027.258.077.150.300.801.80

23.250.102.63

<1.00--

<2.00<20.00<2.00

<10.00<2.00

<10.00<20.00<1.00--------

135.60

<0.503.00

78

Table 3.--Statistical summaries of water-quality data from the Green River coa2 region, based on samples collected from October 1, 1974, to September 30, 1981--Continued

STATION NUMBER: 09209400 STATION NAME AND LOCATION: GREEN RIVER NEAR LABARGE, WYO.--Continued





1191276666666666666366666574

**0.305*.103.0293j.**rT

.182

.544*

LOGQLOGQ

KKKKKKK

LOGQKK

LOGQ

**

25.5*5.432.14****

-15.022.0

*

0.06.32.76.48.61.56.40.25.19.12.60.69.27

0.0102.0001.0001.0001.0001.0001.0001.0001.0004.0045.0001.0001.0001

**

12.3 k

5.951.89***-n

10.626.6

*

79

Table 3.--Statistical summaries of water-quality data from the Green River coal region, based on samples collected from October 1, 1974, to September 30, 1981 Continued

STATION NUMBER: 09210500 STATION NAME AND LOCATION: FONTENELLE CREEK NEAR HERSCHLER RANCH, NEAR FONTENELLE, WYO.DRAINAGE AREA: 152 SQUARE MILES



TEMPERATURE (DEC C)STREAMFLOW, INSTANTANEOUS (FT3/S)TURBIDITY (NTU)SPECIFIC CONDUCTANCE (MICROSIEMENS)OXYGEN, DISSOLVEDPH (UNITS)ALKALINITY (AS CAC03)NITROGEN, AMMONIA + ORGANIC TOTAL

(AS N)NITROGEN, N02+N03 DISSOLVED (AS N)PHOSPHORUS, TOTAL (AS P)PHOSPHORUS, ORTHO, DISSOLVED (AS P)HARDNESS (AS CAC03)CALCIUM DISSOLVEDMAGNESIUM, DISSOLVEDSODIUM, DISSOLVEDSODIUM ADSORPTION RATIOPOTASSIUM, DISSOLVEDCHLORIDE, DISSOLVEDSULFATE DISSOLVEDFLUORIDE, DISSOLVEDSILICA, DISSOLVEDBORON, DISSOLVED (UG/L)IRON, DISSOLVED (UG/L)MANGANESE, DISSOLVED (UG/L)PHYTOPLANKTON, TOTAL (CELLS PER ML)SOLIDS, SUM OF CONSTITUENTS,DISSOLVED

SEDIMENT, SUSPENDED

5151415111

101

561

10101010101010101010101061

10

49

2144560

1000108

1900

000

230601910087

6307

4015040

280279

304

.00 0.00

.00 9.10

.00 0.00

.00 46.00

.00 10.00

.70 8.70

.00 138.00

.15 0.15

.32 0.01

.30 0.01

.01 0.01

.00 160.00

.00 44.00

.00 11.00

.00 3.60

.30 0.10

.20 0.80

.30 2.10

.00 16.00

.20 0.10

.40 4.20

.00 <20.00

.00 <10.00

.00 <10.00

.00 280.00

.00 167.00

.00 3.00

7.76111.189.34

388 . 45----

158.60

------

190.0051.5014.706.920.221.844.20

37.000.136.08 ------

217.70

55.59

STANDARD DEVIATION

6.41128.5714.06

112.23 --

14.71

----

22.615.282.672.410.082.261.61

16.040.050.91 ------

33.47

77.31

PERCENT OF SAMPLES INWERE LESS THAN OR95 75

EQUAL50


25SHOWN

5(MEDIAN)

1841239

474--

190-

---

230601910087

6307

40150

--

279

243

.50

.60

.50

.00--.00-

---.00.00.00.00.30.20.30.00.20.40.00.00--.00

.00

13.00162.0015.00

420.00----

162.25

------

202.5055.2516.759.330.301.705.25

47.750.206.7832.0087.50----

237.50

92.50

7.5040.002.00

385.00----

160.00--

------

195.0052.0014.006.650.201.004.40

35.500.106.2030.0035.00----

223.50

18.00

0.5024.001.00

340.00----

147.50--

----

167.5045.7512.754.630.180.902.75

24.750.105.60

<20.0015.00----

191.75

6.00

0.0016.001.00

266.00 --

138.00--

------

160.0044.0011.003.600.100.802.1016.000.104.20

<20.00<10.00

----

167.00

3.00




SAMPLE SIZE


41511010101010101010101049


0.0898*-.0791.320

-.0288-4.67***

-2.47.244.490.501


QLOGQ

QKQ

LOGQKK

LOGQLOGQ

KKQ

0.*

17073.55.23.

***

8.-51.39.

650

476

92950568


(r2 )

0.62.29.60.77.62.94.48.44.03.72.89.82.71


OF F

0 .0001.0001.0086.0008.0071.0001.0259.0367.633.0018.0001.0003.0001


8.77*9.8711.43.46.705***.894

5.5914.942.1

80


STATION NUMBER: 09211200 STATION NAME AND LOCATION: GREEN RIVER BELOW FONTENELLE RESERVOIR, WYO. DRAINAGE AREA: 4,280 SQUARE MILES




(AS N)NITROGEN, N02+N03 TOTAL (AS N)NITROGEN, N02+N03 DISSOLVED (AS N)PHOSPHORUS, TOTAL (AS P)PHOSPHORUS, ORTHO, DISSOLVED (AS P)CARBON, ORGANIC DISSOLVEDCARBON, ORGANIC SUSPENDEDHARDNESS (AS CAC03)CALCIUM DISSOLVEDMAGNESIUM, DISSOLVEDSODIUM, DISSOLVEDSODIUM ADSORPTION RATIOPOTASSIUM, DISSOLVEDCHLORIDE, DISSOLVEDSULFATE DISSOLVEDFLUORIDE, DISSOLVEDSILICA, DISSOLVEDARSENIC DISSOLVED (UG/L)BARIUM, DISSOLVED (UG/L)BORON, DISSOLVED (UG/L)CADMIUM DISSOLVED (UG/L)CHROMIUM, DISSOLVED (UG/L)COPPER, DISSOLVED (UG/L)IRON, DISSOLVED (UG/L)LEAD, DISSOLVED (UG/L)MANGANESE, DISSOLVED (UG/L)ZINC, DISSOLVED (UG/L)SELENIUM, DISSOLVED (UG/L)COLIFORM, FECAL, (COLS/ 100 ML)PHYTOPLANKTON, TOTAL (CELLS PER ML)SOLIDS, SUM OF CONSTITUENTS,MERCURY DISSOLVED (UG/L)SEDIMENT, SUSPENDED

SAM PLE MAXIMUMSIZE

142 22143 8520130 35140 75085 1325 691 886 170

1 051 064 2

63 025 074 21 06 63 0

86 23086 6186 3586 3886 184 685 3086 13086 185 1817 21 <1002 40

17 817 <2017 918 29017 2818 3017 3017 <11 48

16 1400082 35717 <057 27

.00

.00

.00

.00

.40

.60

.70

.00

.03

.25

.60

.52

.39

.40

.01

.90

.70

.00

.00

.00

.00

.20

.30

.00

.00

.60

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.50

.00

MINIMUM MEAN

1.00302.00

0.00120.006.601.407.60

110.000.030.000.03

0.000.000.000.013.200.40

120.0011.007.605.100.200.101.20

26.000.000.001.00

<100.0040.00<2.00

<20.00<2.00

<10.00<2.00

<10.00<20.00<1.0048.0076.00161.00<0.501.00

9.761668.85

2.42416.8610.142.84--

138.59--0.070.50

0.110.080.05----

173.9545.6914.6521.150.691.755.2872.440.306.221.18-- -- -- ----------

2002.25254.01

--5.61

STANDARD DEVIATION

5.981672.78

4.1590.561.421.34--

16.99--0.050.37

0.090.080.28-- --

26.458.633.366.600.190.723.50

23.730.172.170.39----------------------

3335.4046.11--4.69



25SHOWN

5(MEDIAN)

195688

85591268

164-01

000---

220591934129

116082--8

<209

290283030<1-

14000331<017

.42

.00

.00

.50

.34

.18

.64

.00-.18.15

.32

.32

.07---.00.65.00.00.00.77.66.50.40.81.00--.00.00.00.00.00.00.00.00-.00.00.50.50

14.501630.00

2.00470.0011.003.208.40

150.00--0.100.61

0.130.110.03------

190.0051.0016.0026.000.802.075.75

88.250.307.301.00----2.00

<20.004.0035.002.50

20.00<20.00<1.00--

2125.00282.25<0.507.00

10.001020.00

1.00420.0010.302.508.20

139.00 0.050.44

0.090.070.02 ----

170.0046.0014.0021.000.651.604.7072.500.306.301.00-- 2.00

<20.002.00

20.002.00

<10.00<20.00<1.00--

1070.00262.50<0.504.00

4.00749.00

1.00360.00

9.101.808.00

122.25--0.030.29

0.050.010.01------

150.0040.0013.0017.000.601.403.60

55.500.205.301.00----

<2.00<20.00<2.0015.00<2.00

<10.00<20.00<1.00--

360.00219.50<0.502.50

2.00364.00

1.00280.50

7.331.437.80

110.00--0.010.13

0.010.000.01------

130.0034.0010.0010.350.400.921.96

30.700.203.091.00----

<2.00<20.00<2.00

<10.00<2.00

<10.00<20.00<1.00--

76.00170.60<0.502.00




SAMPLE SIZE

129140858585858585838485


SOLIDS, SUM OF CONSTITUENTS, DISSOLVED 81SEDIMENT, SUSPENDED 56

*j.j.

0.295.0888*** k*.262.515*


LOGQLOGQ

KKKKKKKKKK

LOGQ

**.u

50.8.*****

-37.38.

*

660

09


(r 2 ) OF F

0.10.30.43.69.59.18.47.31.02.10.68.72.04

0 .0003.0001.0001.0001.0001.0001.0001.0001.222.0028.0001.0001.130


**j.

14.85.60*****

13.424.6

*

81

Table 3.--Statistical summaries of water-quality data from tAe Green River coal region, based on samples collected from October 1, 1974, to September 30, 1981 Continued

STATION NUMBER: 09213500 STATION NAME AND LOCATION: BIG SANDY RIVER NEAR FARSON, WYO. DRAINAGE AREA: 322 SQUARE MILES





TEMPERATURE (DEC C)STREAMFLOW, INSTANTANEOUS (FT3/S)TURBIDITY (NTU)SPECIFIC CONDUCTANCE (MICROSIEMENS)PH (UNITS)ALKALINITY (AS CAC03)NITROGEN, AMMONIA DISSOLVED (AS N)NITROGEN, AMMONIA + ORGANIC TOTALNITROGEN, N02+N03 DISSOLVED (AS N)PHOSPHORUS, TOTAL (AS P)PHOSPHORUS, ORTHO, DISSOLVED (AS P)HARDNESS (AS CAC03)CALCIUM DISSOLVEDMAGNESIUM, DISSOLVEDSODIUM, DISSOLVEDSODIUM ADSORPTION RATIOPOTASSIUM, DISSOLVEDCHLORIDE, DISSOLVEDSULFATE DISSOLVEDFLUORIDE, DISSOLVEDSILICA, DISSOLVEDBORON, DISSOLVED (UG/L)IRON, DISSOLVED (UG/L)MANGANESE, DISSOLVED (UG/L)PHYTOPLANKTON, TOTAL (CELLS PER ML)SOLIDS, SUM OF CONSTITUENTS,SEDIMENT, SUSPENDED

757352698

1011561

10101010101010109

10101062

1075

27804

3200390

86700000

57212

18123

300

1350780<10570128

4160

.50

.00

.00

.00

.90

.00

.01

.06

.17

.44

.01

.00

.00

.30

.00

.00

.50

.90

.00

.20

.00

.00

.00

.00

.00

.00

.00

0.004.501.00

42.007.2012.000.010.060.010.030.0115.004.600.801.900.200.600.404.300.105.30

<20.0020.00

<10.00460.0026.004.00

12.99175.69250.29141.14

--35.00----------

36.4012.281.386.770.471.131.74

14.35 7.47--

186.00----

67.20355.93

TION

7.10 24186.30 553652.42 210578.43 290__15.53 67__ __--__

14.05 575.12 210.50 24.75 180.24 10.55 21.20 38.81 30__2.60 13

50222.32 780

____

30.60 128630.49 1616

75EQUAL50


25SHOWN

5(MEDIAN)

.80

.20

.00

.00-.00-----.00.00.30.00.00.50.90.00-.00.00.00--.00.00

18 . 00309.00106.25192.50

42.75-- ------

48.2516.251.738.230.601.223.0519.25--8.75

40.00212.50

--

90.00386.00

14.0096.0027.50120.00

--36.50--------

39.0013.001.356.900.451.151.35

12.50--6.55

<20.00130.00

--

66.50176.00

9.0029.004.2572.50__

23.25 --__--__

21.757.150.902.700.270.750.777.35--5.58

<20.0060.00--

41.0049.00

0.0014.701.65

45.00 12.00__ __----15.004.600.801.900.200.600.404.30 5.30

<20.0020.00--

26.0010.00




SAMPLE SIZE


47661010101010101010101065


j.*0.291.252.0938

-.00190.0877.00414.00990.0189.142.561

~f\


QQKKKQKKKKKKQ

REGRESSION CONSTANT

**5.58

10.92.791.70

-2.10.0508.129

-.174-.0506

10.5*


(r2 )

0.17.18.94.86.90.51.91.83.87.67.70.90.41


OF F

0 .0039.0004.0001.0001.0001.0212.0001.0003.0001.0039.0026.0001.0001


-.»-

JL

4.085.601.73.370

1.49.104.206.733

5.1210.3

k

82


STATION NUMBER: 09214500 STATION NAME AND LOCATION: LITTLE SANDY CREEK ABOVE EDEN, WYO. DRAINAGE AREA: 134 SQUARE MILES



STANDARD MINIMUM MEAN DEVIA-

SIZE


(AS N)NITROGEN, N02+N03 TOTAL (AS N)NITROGEN, N02+N03 DISSOLVED (AS N)PHOSPHORUS, TOTAL (AS P)CARBON, ORGANIC DISSOLVEDHARDNESS (AS CAC03)CALCIUM DISSOLVEDMAGNESIUM, DISSOLVEDSODIUM, DISSOLVEDSODIUM ADSORPTION RATIOPOTASSIUM, DISSOLVEDCHLORIDE, DISSOLVEDSULFATE DISSOLVEDFLUORIDE, DISSOLVEDSILICA, DISSOLVEDARSENIC DISSOLVED (UG/L)BORON, DISSOLVED (UG/L)CADMIUM DISSOLVED (UG/L)CHROMIUM, DISSOLVED (UG/L)COPPER, DISSOLVED (UG/L)IRON, DISSOLVED (UG/L)LEAD, DISSOLVED (UG/L)MANGANESE, DISSOLVED (UG/L)ZINC, DISSOLVED (UG/L)SELENIUM, DISSOLVED (UG/L)PHYTOPLANKTON, TOTAL (CELLS PER ML)SOLIDS, SUM OF CONSTITUENTS,DISSOLVED


13812182

1332

365985

19

1848531

5959595959595959595945444945441

58

4102

2449332001080

88

166000

0205

3209720120

33

24390

0301

603

<206

2301820

<20<1

400760

<01560

.50

.00

.00

.00

.10

.60

.00

.07

.04

.85

.18

.00

.77

.80

.00

.00

.00

.00

.00

.70

.00

.00

.90

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.50

.00

0.000.001.00

95.007.707.101.000.000.000.05

0.000.000.015.80

34.0011.001.705.700.400.801.20

16.000.101.80

<1.00<20.00<2.00

<20.002.00

40.00<2.00

<10.00<20.00<1.00

400.0064.00

<0.502.00

8.3639.41142.96394.80

----

73.73 --0.47

0.040.110.09--

109.1033.036.40

40.461.601.978.63

108.150.269.83__--__-------- ----__

255.00

--132.44

TION

7.5861.14

475.40211.17

----

32.54-- 0.21

0.040.300.12

54.6916.553.47

24.760.660.765.8571.310.134.57 __----__ -- ------

139.58

--225.26



25SHOWN

5(MEDIAN)

21.00141.90

1295.00863.00

--8.43

157.00----0.85

0.180.580.31__

240.0072.0014.0089.002.903.50

21.00230.00

0.4018.00--__ ____------------

546.05

__609.95

15.0059.0035.00

490.00 8.10

85.00__--0.59

0.060.070.11--

130.0039.008.20

55.002.002.3013.00

140.000.3012.00__-- __---------- --

330.75

__161.25

8.509.607.50

360.00--7.70

74.00----0.51

0.030.030.04--

98.0029.005.8035.001.601.808.20

96.000.309.40------------------

239.50

__36.50

0.005.202.00

245.00__7.50

56.00----0.29

0.020.010.03--

78.0024.004.00

22.001.101.504.00

60.000.206.30------------ --------

162.75

10.00

0.000.561.00

120.00--7.19

23.00----0.05

0.000.000.02--

37.0011.002.007.400.500.901.50

20.000.104.50__---------- --------

67.90

4.00




SAMPLE SIZE


661154646464646464646464581


**0.137.270.0800.0169.121.00292.00322.0234.349.686*


QLOGQ

KKKKKKKKKKQ


**

17.1.1.-.

-7.

-.-30.-20.

JU

380263728941669159705

0.37.40.78.95.94.94.97.82.77.62.94.98.45

0 .0001.0001.0001.0001.0001.0001.0001.0001.0001.0001.0001.0001.0001


**

15.513.14.39.882

4.30.284.368

3.8918.222.0

~"

83


STATION NUMBER: 09216000 STATION NAME AND LOCATION: BIG SANDY RIVER BELOW EDEN, WYO.DRAINAGE AREA: 1,610 SQUARE MILES

DESCRIPTIVE STATISTICSCAM-

WATER QUALITY CONSTITUENT JAM ^^ ^^ ^

SIZE

TEMPERATURE (DEC C) 140 25 STREAMFLOW, INSTANTANEOUS (FT3/S) 130 1250 TURBIDITY (NTU) 117 4200SPECIFIC CONDUCTANCE (MICROS IEMENS) 132 4300OXYGEN, DISSOLVEDPH (UNITS)ALKALINITY (AS CAC03)NITROGEN, AMMONIA TOTAL (AS N)NITROGEN, AMMONIA + ORGANIC TOTAL

(AS N)NITROGEN, N02+N03 TOTAL (AS N)NITROGEN, N02+N03 DISSOLVED (AS N)PHOSPHORUS, TOTAL (AS P)PHOSPHORUS, ORTHO, DISSOLVED (AS P)CARBON, ORGANIC DISSOLVEDCARBON, ORGANIC SUSPENDEDHARDNESS (AS CAC03)CALCIUM DISSOLVEDMAGNESIUM, DISSOLVEDSODIUM, DISSOLVEDSODIUM ADSORPTION RATIOPOTASSIUM, DISSOLVEDCHLORIDE, DISSOLVEDSULFATE DISSOLVEDFLUORIDE, DISSOLVEDSILICA, DISSOLVEDARSENIC DISSOLVED (UG/L)BORON, DISSOLVED (UG/L)CADMIUM DISSOLVED (UG/L)CHROMIUM, DISSOLVED (UG/L)COPPER, DISSOLVED (UG/L)IRON, DISSOLVED (UG/L)LEAD, DISSOLVED (UG/L)MANGANESE, DISSOLVED (UG/L)ZINC, DISSOLVED (UG/L)SELENIUM, DISSOLVED (UG/L)COLIFORM, FECAL, (COLS/100 ML)PCB, TOTAL (UG/L)PCB, TOTAL IN BOTTOM MATERIAL (UG/KG)PHYTOPLANKTON, TOTAL (CELLS PER ML)SOLIDS, SUM OF CONSTITUENTS,DISSOLVED


55 1265 976 29045 054 2

54 123 266 11 05 145 1

76 140076 41076 14076 60076 976 2576 8476 180075 375 1714 71 450

14 514 <2014 916 26014 1315 3014 4014 54 2408 07 11 2700

75 2910

14 <093 3030

.50 0.

.00 14.

.00 0.

.00 340.

.50 7.

.10 7.

.00 120.

.29 0.

.10 0.

.50 0.

.90 0.

.70 0.

.01 0.

.00 4.

.90 0.

.00 280.

.00 70.

.00 26.

.00 110.

.60 2.

.00 0.

.00 18.

.00 360.

.60 0.

.00 0.

.00 1.

.00 450.

.00 <2.

.00 <20.

.00 <2.

.00 <10.

.00 <2.

.00 <10.

.00 <20.

.00 1.

.00 40 .

.00 0,

.00 0,

.00 2700,

.00 670.

.50 <0,

.00 3,

00 00 00003080000022

020800018010000000,0080100000,2020,000000,00,00,00,00.00.00.00.00.00.00.00.00

.50

.00

9.17 64.16 107.95

2565.539.75--

225.090.070.82

0.580.690.09------

857.50208.8681.28

343.685.184.02

48.591275.66

1.0411.252.64----------------2.29--------

2110.80

--187.29

STANDARD DEVIA TION

7.15 113.52 491.52737.65

1.18--

31.960.060.40

0.420.570.24------

260.5165.9927.6286.671.152.6211.25

349.520.442.721.95----------------1.49--------

533.89

--489.11

PERCENT OF SAMPLES INWERE LESS THAN95

21 151 357

3600118

26401

120---

1300313131481

75

671700

1157-5

<209

2601330405----

2764

<0872

.00

.65

.00

.00

.86

.50

.05

.24

.67

.42

.56

.44---.00.00.50.50.01.23.30.00.30.00.00-.00.00.00.00.00.00.00.00----.00

.50

.30

75

15.37 66.00 15.00

3000.0010.608.20

250.000.080.99

0.920.890.06------

1100.00250.0099.50

390.005.774.35

56.001600.00

1.1013.004.00--3.00

<20.005.25

50.005.25

30.0020.003.25--------

2580.00

<0.50107.50

OR EQUALWHICH VALUESTO THOSE

50 25 (MEDIAN)

8.75 44.50 4.00

2700.009.408.10

230.000.050.76

0.500.560.03------

905.00220.0085-00350.00

5.153.80

48.501400.00

1.0012.002.00--2.00

<20.003.50

25.00<2.0020.0020.002.00--------

2260.00

<0.5049.00

2.50 28.00 2.00

2000.009.008.00

201.250.030.54

0.230.390.01------

650.00160.0058.50282.50

4.423.35

42.25927.50

0.9010.001.00--

<2.00<20.00<2.00

<10.00<2.00

<10.00<20.00

1.00--------

1610.00

<0.5027.50

SHOWN5

0.00 17.55 1.00

1213.007.867.80

160.000.010.29

0.030.090.01------

415.5094.4037.85197.00

3.441.60

29.85697.00

0.705.921.00--

<2.00<20.00<2.00

<10.00<2.00

<10.00<20.00

1.00--------

1216.00

<0.5011.40




SAMPLE SIZE

108122656565656565656565


3.551960.

.0414

.325*.0355.126**.0147.522

SOLIDS, SUM OF CONSTITUENTS, DISSOLVED 64 -2,030SEDIMENT, SUSPENDED 77 *


QLOGQ

KKKKKKKKK

LOGQQ

-1215870112-49.

*-17.

3.**

9.-159

5,350*

2

034

85


(r 2 ) OF F

0.74.63.56.61.47.66.69.22.00.55.79.77.31

0 .0001.0001.0001.0001.0001.0001.0001.0001.805.0001.0001.0001.0001


26244722.0157

*15.351.4**8.02

161261

*

84

Table 3.--Statistical summaries of water-quality data from the Green River coal region, based on samples collected from October 1, 1974, to September 30, I981--Continued

STATION NUMBER: 09216050 STATION NAME AND LOCATION: BIG SANDY RIVER AT GASSON BRIDGE, NEAR EDEN, WYO. DRAINAGE AREA: 1,720 SQUARE MILES

DESCRIPTIVE




(AS N)NITROGEN, N02+N03 TOTAL (AS N)NITROGEN, N02+N03 DISSOLVED (AS N)PHOSPHORUS, TOTAL (AS P)PHOSPHORUS, ORTHO, DISSOLVED (AS P)HARDNESS (AS CAC03)CALCIUM DISSOLVEDMAGNESIUM, DISSOLVEDSODIUM, DISSOLVEDSODIUM ADSORPTION RATIOPOTASSIUM, DISSOLVEDCHLORIDE, DISSOLVEDSULFATE DISSOLVEDFLUORIDE, DISSOLVEDSILICA, DISSOLVEDARSENIC DISSOLVED (UG/L)BORON, DISSOLVED (UG/L)CADMIUM, DISSOLVED (UG/L)CHROMIUM, DISSOLVED (UG/L)COPPER, DISSOLVED (UG/L)IRON, DISSOLVED (UG/L)LEAD, DISSOLVED (UG/L)MANGANESE, DISSOLVED (UG/L)ZINC, DISSOLVED (UG/L)SELENIUM, DISSOLVED (UG/L)PHYTOPLANKTON, TOTAL (CELLS PER ML)SOLIDS, SUM OF CONSTITUENTS,DISSOLVED


11310847

10732

2757134

213542

575757575757575756571211141311

1757

161

25277650

60001418

320001

0110

1600360200730235

1502600

4222

510<2

<202

90<260

<204

35004040

<02190

.50 0.

.00 19.

.00 1.

.00 1200.

.40 8.

.20 1.

.50 7.

.00 139.

.04 0.

.12 0.

.60 0.

.76 0.

.60 0.

.80 0.

.01 0.

.00 75.

.00 19.

.00 6.

.00 280.

.00 4.

.60 0.

.00 4.

.00 690.

.50 0.

.00 0.

.00 2.

.00 450.

.00 <2.

.00 <20.

.00 2.

.00 30.

.00 <2.

.00 20.

.00 <20.

.00 4.

.00 70.

.00 1440.

.50 <0.

.00 6.

0000000020007000040139

2600000100009000503090009020000000000000000000000000

5000

9.6765.6856.72

3597.01------

250.61-- --

--0.520.12

1101.32226.51130.30513.16

6.963.66

54.721826.14

1.6111.25--------------------

1208.242906.67

--194.48

PERCENT OF SAMPLES INSTANDARD WERE LESS THANDEVIATION

8.3143.19127.50

1023.23 ----

40.12--

--0.440.28--

307.0259.9140.88122.262.390.98

21.32482.43

0.813.07---------- ------

1005.03702.28

--333.00

95 75OR EQUAL

50


25SHOWN

5(MEDIAN)

23.50126.00410.00

5300.00----8.46

311.00------

--1.600.69

1510.00320.00191.00730.00

8.525.10

111.002500.00

4.0316.10--------------------

3500.003942.00

--888.00

17.0079.5040.00

4199.99 --8.20

290.00-- --

--0.830.09

1350.00270.00165.00610.00

7.604.10

59.002250.00

1.5013.00-------- ----------

1900.003520.00

--212.50

9.0057.5010.00

3500.00----8.20

250.00----

--0.400.04

1200.00240.00130.00510.00

6.703.80

52.001800.00

1.3511.00-- --------------

830.002910.00

--83.00

0.5039.006.00

2800.00 --8.00

220.5------

--0.200.02--

875.00185.0098.50

410.005.953.50

44.001450.00

1.2010.00-------- ---- --

370.002350.00

--46.50

0.0023.002.00

2088.00----7.82

171.80------

--0.000.01--

659.00129.0073.90

327.004.781.21

35.601090.00

1.005.31 ------------------

70.001778.00

--26.20




SAMPLE SIZE


46-984444444444444444444453


**0.0390.333.0576.0456

-552------.534.756*

INDEPENDENT REGRE VARIABLE CONS

QLOGQ

KKKK

LOGQLOGQ

KQKKQ

101-163

7-42

1,460

-20727

COEFFICIENT OF SIGNIFICANCE SJi!: DETERMINATION PROBABILITY 1AN1 (r 2 ) OF F

*if

.55

.0

***

.7*

0.27.49.73.81.66.83.77.24.10.17.87.84.34

0 .0002.0001.0001.0001.0001.0001.0001.0007.0382.0056.0001.0001.0001


**

20.414135.518.159.2

-V

**

183285

*

85

Table 3.--Statistical summaries of water-guaJity data from the Green River coal region, based on samples collected from October 1, 1974, to September 30, 1981 Continued

STATION NUMBER: 09216300 STATION NAME AND LOCATION: GREEN RIVER AT BIG ISLAND, NEAR GREEN RIVER, WYO. DRAINAGE AREA: 7,300 SQUARE MILES

DESCRIPTIVE




(AS N)NITROGEN, N02+N03 TOTAL (AS N)NITROGEN, N02+N03 DISSOLVED (AS N)PHOSPHORUS, TOTAL (AS P)PHOSPHORUS, ORTHO, DISSOLVED (AS P)HARDNESS (AS CAC03)CALCIUM DISSOLVEDMAGNESIUM, DISSOLVEDSODIUM, DISSOLVEDSODIUM ADSORPTION RATIOPOTASSIUM, DISSOLVEDCHLORIDE, DISSOLVEDSULFATE DISSOLVEDFLUORIDE, DISSOLVEDSILICA, DISSOLVEDBORON, DISSOLVED (UG/L)IRON, DISSOLVED (UG/L)MANGANESE, DISSOLVED (UG/L)COLIFORM, FECAL, (COLS/ 100 ML)PHYTOPLANKTON , TOTAL (CELLS PER ML)SOLIDS, SUM OF CONSTITUENTS,DISSOLVED

SEDIMENT, SUSPENDED

86733781382

5184

122

124701

848484848483848484812222

1584

42

2277101509501218

172000

0200

31081339526

21330

112

10060

<1032

2200634

549

.00 0.

.00 389.

.00 1.

.00 340.

.20 7.

.40 1.

.90 7.

.00 107.

.10 0.

.06 0.

.97 0.

.07 0.

.40 0.

.84 0.

.01 0.

.00 130.

.00 32.

.00 11.

.00 16.

.50 0.

.30 0.

.00 3.

.00 46.

.20 0.

.00 0.

.00 80.

.00 20.

.00 <10.

.00 14.

.00 440.

.00 191.

.00 3.

0000000060309000100325

0700000100000000601000000000000000000000

00

9.241441.16

14.08624.42

9.61--

143.27------

--0.200.04--

224.1755.6420.9849.821.411.938.37

172.900.375.65-- --

1029.33403.10

45.50

PERCENT OF SAMPLES INSTANDARD WERE LESS THAN ORDEVIA- 95TION

7.33 211253.19 486732.71 123139.15 897

1.23 11__

817.07 167__--__

__0.52 20.11 0--

43.47 2909.62 705.44 3119.33 850.45 20.74 23.54 15

64.66 2870.14 02.19 9 ------

598.44 2200103.12 569

. 97.58 322

75EQUAL50


25SHOWN

5(MEDIAN)

.00

.99

.00

.00

.63-.70.75---

-.07.15-.00.25.00.75.27.96.00.50.60.68----.00.50

.65

16.63 9.001670.00 1010.00

10.00730.0010.65--8.50

159.00------

--0.110.03--

257.5062.0025.0062.001.702.3010.00

220.000.406.90--------

1500.00477.50

46.00

2.00630.00

9.55 8.30

149.00------

--0.040.02--

230.0057.0021.0046.501.401.907.75

165.000.405.90-- ----

780.00401.00

16.00

2.00821.00

1.00515.00

8.47--8.20

130.00------

--0.020.01--

200.0050.2517.0037.251.101.605.60

140.000.304.35------

520.00348.50

8.00

0.00400.60

1.00395.50

7.79--7.90

120.00 --

--0.000.00--

142.5037.2512.0018.250.621.023.80

59.250.202.52-- --

440.00213.50

3.00




SAMPLE SIZE


37696767676767676667676730


*-374

*-121

.0498-15.7

.116

.00258V"

.0175

.410

.655*


KLOGQ

KLOGQ

KLOGQ

KKKKKKK

*1,770

*59524.869.2-23.8

-.226*

-2.73-84.1-7.37

*


(r 2 )

0.00.57.16.61.55.65.74.66.03.52.79.80.01


OF F

0 .736.0001.0010.0001.0001.0001.0001.0001.135.0001.0001.0001.610


*90.7

*27.16.133.199.44.250*2.29

28.344.5*

86


STATION NUMBER: 09216527 STATION NAME AND LOCATION: SEPARATION CREEK NEAR RINER, WYO. DRAINAGE AREA: 53 SQUARE MILES


WATER QUALITY CONSTITUENT SAM- STANDARD PLE MAXIMUM MINIMUM MEAN DEVIA-SIZE


(AS N)NITROGEN, N02+N03 TOTAL (AS N)NITROGEN, N02+N03 DISSOLVED (AS N)PHOSPHORUS, TOTAL (AS P)PHOSPHORUS, ORTHO, DISSOLVED (AS P)HARDNESS (AS CAC03)CALCIUM DISSOLVEDMAGNESIUM, DISSOLVEDSODIUM, DISSOLVEDSODIUM ADSORPTION RATIOPOTASSIUM, DISSOLVEDCHLORIDE, DISSOLVEDSULFATE DISSOLVEDFLUORIDE, DISSOLVEDSILICA, DISSOLVEDARSENIC DISSOLVED (UG/L)BORON, DISSOLVED (UG/L)CADMIUM DISSOLVED (UG/L)CHROMIUM, DISSOLVED (UG/L)COPPER, DISSOLVED (UG/L)IRON, DISSOLVED (UG/L)LEAD, DISSOLVED (UG/L)MANGANESE, DISSOLVED (UG/L)ZINC, DISSOLVED (UG/L)SELENIUM, DISSOLVED (UG/L)PHYTOPLANKTON, TOTAL (CELLS PER ML)SOLIDS, SUM OF CONSTITUENTS,MERCURY DISSOLVED (UG/L)SEDIMENT, SUSPENDED

45762939201024225

1518

187

193

222222222222222222226

22666

2267663

226

31

2162

7602390

1058

360003

0010

1100150180200

21344

12000

102

1704

<209

5806

90201

530001970

<01820

.00

.00

.00

.00

.20

.10

.60

.00

.10

.22

.20

.53

.15

.60

.03

.00

.00

.00

.00

.70

.00

.00

.00

.50

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.50

.00

0.000.005.00

220.007.501.607.80

91.000.020.010.49

0.000.010.030.01

95.0024.008.6015.000.703.202.50

48.000.102.80

<1.0050.00<2.00

<20.00<2.00

<10.00<2.00

<10.00<20.00<1.00

460.00163.00<0.5011.00

8.025.45

127.431088.92

9.012.99--

230.27--0.081.37

0.11--0.33--

467.0574.4168.5780.451.525.5113.16

385.360.286.91--

110.91-------- ------

773.95--

363.06

TION

6.549.51

177.78587.67

0.811.08--

84.21--0.060.84

0.12--0.43--

271.1334.4146.3956.350.652.08

10.47303.54

0.112.10--

33.93---- ------ ----

490.18--

436.91



SHOWN5

(MEDIAN)

19.3525.15

630.002379.99

10.205.108.58

358.50--0.223.20

0.53--1.60--

1085.00147.00178.50200.00

2.7012.1342.95

1170.000.4810.00--

170.00------

512.50----------

1941.50<0.50

1808.00

13.508.17

135.001580.00

9.673.828.37

300.75--0.121.95

0.13--0.37--

612.5096.0091.25117.50

1.976.3817.75

560.000.328.30--

132.50 ----

85.00----------

1070.00<0.50

454.00

8.001.05

50.00975.00

9.052.608.20

238.50--0.060.99

0.07--0.15--

370.0067.0049.5064.001.405.159.35

275.000.307.00--

110.00------

40.00----------

598.00<0.50

212.00

1.500.00

22.50670.00

8.282.208.10

167.50--0.030.77

0.04--0.10--

285.0052.7536.2536.000.973.885.95

160.000.205.47--

80.00------

27.50----------

415.50<0.50

104.00

0.000.007.20

240.007.511.607.80

91.15--0.010.49

0.00--0.03--

103.2524.7510.3116.500.703.282.89

58.800.102.81--

53.00------

<10.00----------

180.85<0.5023.60




SAMPLE SIZE


26372121212121212121212124


**0.115.449.0557.0773.0941.00103*.0173.511.828*


KLOGQ

KKKKKKKKKKK

COEFFICIENTCONSTANT DETERMINATK

(r 2 )

**

103-25.13.

-16.-22.

*-5.

-169-129

*

4403397

59

0.34.49.66.98.92.98.97.86.43.92.96.99.34

OF SIGNIFICANCE )N PROBABILITY

OF F

0 .0018.0001.0001.0001.0001.0001.0001.0001.0012.0001.0001.0001.0029


* >v

48.642.19.476.679.54.247

>v

3.0559.156.1

~/;

87

Table 3.--Statistical summaries of water-quality data from the Green River coal region, jbased on samples collected from October 1, 1974, to September 30, 1981--Continued

STATION NUMBER: 09216545 STATION NAME AND LOCATION: BITTER CREEK NEAR BITTER CREEK, WYO. DRAINAGE AREA: 308 SQUARE MILES




(AS N)NITROGEN, N02+N03 TOTAL (AS N)NITROGEN, N02+N03 DISSOLVED (AS N)PHOSPHORUS, TOTAL (AS P)PHOSPHORUS, ORTHO, DISSOLVED (AS P)HARDNESS (AS CAC03)CALCIUM DISSOLVEDMAGNESIUM, DISSOLVEDSODIUM, DISSOLVEDSODIUM ADSORPTION RATIOPOTASSIUM, DISSOLVEDCHLORIDE, DISSOLVEDSULFATE DISSOLVEDFLUORIDE, DISSOLVEDSILICA, DISSOLVEDARSENIC DISSOLVED (UG/L)BORON, DISSOLVED (UG/L)CADMIUM DISSOLVED (UG/L)CHROMIUM, DISSOLVED (UG/L)COPPER, DISSOLVED (UG/L)IRON, DISSOLVED (UG/L)LEAD, DISSOLVED (UG/L)MANGANESE, DISSOLVED (UG/L)ZINC, DISSOLVED (UG/L)SELENIUM, DISSOLVED (UG/L)PHYTOPLANKTON, TOTAL (CELLS PER ML)SOLIDS, SUM OF CONSTITUENTS,DISSOLVED


SAM PLE MAXIMUMSIZE

150 29143 157141 7200148 450079 1167 880 978 5303 0

70 076 4

74 06 0

77 63 0

78 34078 7178 3978 84078 2678 778 9278 140078 278 186 2

77 4606 46 <206 8

76 7706 3

12 406 206 16 4600

78 2740

6 0104 21900

.00

.00

.00

.00

.90

.70

.30

.00

.05

.46

.70

.95

.22

.20

.03

.00

.00

.00

.00

.00

.60

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.50

.00

MINIMUM MEAN

0.0.1.

280.6.0.7.

91.0.0.0.

0.0.0.0.

66.15.5.

58.1.1.4.

56.0.0.1.

10.<2.

<20.2.

<10.<2.

<10.<20.<1.12.

295.

<0.22.

0000400070808000010005

00030101.00,00,0000,60,30,900030.50,00000000.000000,00.00.00.00.00

.50

.00

10.616.28

341.381754.39

9.333.32--

304.38--0.091.17

0.14--0.36--

211.0839.6327.23

348.2210.762.95

38.72589.82

0.867.85--

209.35------------------

1239.05

--1859.30

STANDARD DEVIATION

8.8718.32

854.44612.65

1.321.60--

78.49--0.090.80

0.16--0.84--

63.1414.628.14

124.154.111.12

15.30200.44

0.313.82--

72.35------------------

383.79

--4193.91


OR EQUAL50


25SHOWN

5(MEDIAN)

25.0043.00

2180.002600.00

11.606.589.30

410.50--0.252.74

0.42--1.62--

310.5063.0538.05

532.0018.055.51

63.40845.00

1.4013.00--

324.00------

331.50--

40.00-- --

1807.50

10954.96

18.122.60

220.002100.00

10.404.408.80

350.00--0.131.38

0.17--0.24--

260.0052.0034.00

422.5013.003.30

47.00700.00

1.1011.00--

250.00------

130.00--

<10.00------

1440.00

--649.50

10.501.10

99.001765.00

9.303.008.50

316.50--0.060.93

0.08--0.15--

210.0041.0028.00

350.009.902.80

38.00600.00

0.808.30--

200.00------

70.00--

<10.00 --

1265.00

--252.00

1.000.56

55.001500.00

8.202.208.30

280.00--0.030.68

0.03--0.08--

160.0027.7523.00

280.008.202.17

29.50477.50

0.605.90--

170.00------

40.00--

<10.00------

1010.00

--147.25

0.000.2515.40

569.007.201.128.00

120.00--0.000.38

0.01--0.04--

99.2516.009.95

109.155.291.60

12.81170.000.400.98--

98.00------

<10.00--

<10.00------

400.55

--67.50




SAMPLE SIZE

121130656565656565656565



**0.113***.196

.*-*.0234.320.610*

INDEPENDENT REGRESSION COEFFICIENT OF SIGNIFICANCE INDEPENDENT REGRESSION DETERJ^NATION PRoBABILITY

LOGQLOGQ

KK

LOGQKKK

LOGQKKK

LOGQ

99

-6

-311

135

**.7***.41**.41.4

*

0.30.47.59.03.05.16.76.49.08.63.79.79.45

0 .0001.0001.0001.136.0749.0009.0001.0001.0253.0001.0001.0001.0001


**

44.6***

52.0**8.50

79.6149

rt

88


STATION NUMBER: 09216562 STATION NAME AND LOCATION: BITTER CREEK ABOVE SALT WELLS CREEK NEAR SALT WELLS, WYO. DRAINAGE AREA: 836 SQUARE MILES

DESCRIPTIVE




(AS N)NITROGEN, N02+N03 TOTAL (AS N)NITROGEN, N02+N03 DISSOLVED (AS N)PHOSPHORUS, TOTAL (AS P)CARBON, ORGANIC DISSOLVEDCARBON, ORGANIC SUSPENDEDHARDNESS (AS CAC03)CALCIUM DISSOLVEDMAGNESIUM, DISSOLVEDSODIUM, DISSOLVEDSODIUM ADSORPTION RATIOPOTASSIUM, DISSOLVEDCHLORIDE, DISSOLVEDSULFATE DISSOLVEDFLUORIDE, DISSOLVEDSILICA, DISSOLVEDARSENIC DISSOLVED (UG/L)BORON, DISSOLVED (UG/L)CADMIUM DISSOLVED (UG/L)CHROMIUM, DISSOLVED (UG/L)COPPER, DISSOLVED (UG/L)IRON, DISSOLVED (UG/L)LEAD, DISSOLVED (UG/L)MANGANESE, DISSOLVED (UG/L)ZINC, DISSOLVED (UG/L)SELENIUM, DISSOLVED (UG/L)SOLIDS, SUM OF CONSTITUENTS,DISSOLVED


11311211193545055555053

542

5411

555454555455555555556

55666

556666

55

682

26776

340008000

1288

8500

16

41380

560059010002700

2234

19006400

1151

17003

2012

12006

3303010

12300

051800

.50 0.

.00 0.

.00 1.

.00 600.

.10 6.

.40 0.

.80 7.

.00 57.

.45 0.

.00 0.

.50 0.

.50 0.

.60 0.

.50 8.

.40 0.

.00 0.

.00 32.

.00 19.

.00 100.

.00 2.

.00 2.

.00 14.

.00 230.

.20 0.

.00 0.

.00 <1.

.00 110.

.00 <2.

.00 <20.

.00 <2.

.00 <10.

.00 <2.

.00 50.

.00 10.

.00 <1.

.00 530.

.60 <0.

.00 22.

00000000308060000028

0016005040000000000070000010000000000000000000000000

5000

8.4322.07

1980.533468.60

9.783.48

313.090.111.92

0.73--0.43----

1260.55159.91215.00708.55

8.2711.63

495.931750.18

0.695.30--

494.55 -- --------

3527.11

--5074.46

STANDARD DEVIATION

7.9487.56

4873.611946.23

1.511.65--

141.340.112.68

1.14--0.83----

948.0295.18179.56551.67

3.936.34

438.421319.92

0.213.66--

340.37---- ---- --

2569.37

--10552.99


OR EQUAL50


25SHOWN

5(MEDIAN)

22.15106.05

10920.007030.00

11.806.608.70

570.800.397.73

4.17--2.70----

2900.00307.50602.50

2040.0016.2522.80

1620.004539.99

1.0213.20--

1300.00------

476.00--------

9483.99

--29059.93

15.757.15

1400.005000.00

11.204.258.50

370.000.171.70

0.90--0.25

1800.00200.00277.50890.00

9.7315.00

670.002300.00

0.907.60--

590.00 ----

100.00------

4580.00

--3387.50

8.001.40

110.003000.00

9.853.008.30

310.000.081.30

0.31--0.09----

1100.00135.00170.00610.00

7.2011.00

380.001400.00

0.704.40--

410.00------

60.00--------

2860.00

--634.50

0.000.10

20.001700.00

8.502.278.20

230.000.040.83

0.03--0.05

660.00117.5096.00

330.005.586.30

180.00910.00

0.602.60--

260.00------

30.00------

1750.00

--201.50

0.000.003.6

964.007.221.117.80

110.000.000.31

0.00--0.01----

168.0033.7525.00118.00

3.452.94

45.20260.00

0.280.40--

138.00------

<10.00--------

619.20

--34.75




SAMPLE SIZE


78783838373738373838383858


***0.254.0293.0454.140.00100*.116.349.702

84.1

RFfRFScjTOW COEFFICIENT OF SIGNIFICANCEINDtPENDEJNl KtURtSSION r,pTpRMTVATTnV PRORiRTTTTVVARIABLE CONSTANT DETERMINATION PROBABILITY

LOGQLOGQ

KKKKKKKKKKQ

-1928

-19-5

3

-88-51-48

3010

** *.2.3.9.82.51*.6.2.1

0.28.46.37.63.54.77.86.50.39.86.85.91.69

0 .0001.0001.0001.0001.0001.0001.0001.0001.0001.0001.0001.0001.0001


**»*.»

35250.246.3102

1.85A.

86.6266408

6800

89


STATION NUMBER: 09216565 STATION NAME AND LOCATION: SALT WELLS CREEK NEAR SOUTH BAXTER, WYO. DRAINAGE AREA: 35 SQUARE MILES




(AS N)NITROGEN, N02+N03 TOTAL (AS N)NITROGEN, N02+N03 DISSOLVED (AS N)PHOSPHORUS, TOTAL (AS P)PHOSPHORUS, ORTHO, DISSOLVED (AS P)HARDNESS (AS CAC03)CALCIUM DISSOLVEDMAGNESIUM, DISSOLVEDSODIUM, DISSOLVEDSODIUM ADSORPTION RATIOPOTASSIUM, DISSOLVEDCHLORIDE, DISSOLVEDSULFATE DISSOLVEDFLUORIDE, DISSOLVEDSILICA, DISSOLVEDARSENIC DISSOLVED (UG/L)BARIUM, DISSOLVED (UG/L)BORON, DISSOLVED (UG/L)CADMIUM DISSOLVED (UG/L)CHROMIUM, DISSOLVED (UG/L)COPPER, DISSOLVED (UG/L)IRON, DISSOLVED (UG/L)LEAD, DISSOLVED (UG/L)MANGANESE, DISSOLVED (UG/L)ZINC, DISSOLVED (UG/L)SELENIUM, DISSOLVED (UG/L)PHYTOPLANKTON, TOTAL (CELLS PER ML)SOLIDS, SUM OF CONSTITUENTS,DISSOLVED


SAM PLE MAXIMUMSIZE

208 29174 19199 9000198 400063 1359 566 863 4905 0

53 058 9

58 010 060 35 0

63 100063 17063 14063 34063 663 1263 19063 80062 063 218 32 <100

63 2508 38 <208 7

63 5208 10

10 4408 <208 27 120000

63 1630

8 1144 18800

.50

.00

.00

.00

.60

.70

.80

.00

.05

.25

.80

.47

.33

.00

.03

.00

.00

.00

.00

.60

.00

.00

.00

.70

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00


MINIMUM MEAN DEVIA- 95

0.0.1.

440.6.0.7.

170.0.0.0.

0.0.0.0.

200.39.24.43.1.2.4.

74.0.4.1.

<100.70.<2.

<20..<2.

<10.<2.10.

<20.<1.

100.343.

<0.6.

0000000030706000010015

00010101000000003060600010,2000,0000,000000,0000,00,00.00.00.00

.50

.00

9.041.42

392.231090.08

9.502.22--

269.25--0.071.05

0.100.130.26--

482.5487.3064.4091.521.825.4115.74

382.210.3211.25----

139.21----------

169.00------

822.63

--875.08

TION

8.21 232.57 6

1006.20 2300339.11 1500

1.57 111.03 4

850.58 326--0.07 01.39 3

0.12 00.13 00.57 1--

142.51 67827.87 13019.04 9040.89 1660.73 21.85 9

22.77 22146.44 596

0.11 02.96 15----

36.65 226------

366--

151.98 440__----

248.04 1136

--2268.96 4797

75 50


25SHOWN

5(MEDIAN)

.00

.30

.00

.00

.78

.60

.70

.80-.23.08

.43

.33

.49-.00.00.20.00.70.68.20.00.50.80--.00---.00-.00---.00

-.50

15.001.40

260.001282.50

10.802.608.50

300.00--0.101.01

0.170.280.15

590.00110.0077.00100.00

1.806.2017.00

480.000.4013.00----

150.00------

120.00--

267.50--_ --

997.00

--623.50

8.500.50

25.001100.00

9.602.008.30

270.00--0.040.69

0.040.040.06--

480.0085.0064.0085.001.705.0012.00

370.000.3011.00----

140.00-- --

70.00--

135.00------

807.00

--106.00

0.000.165.00

907.508.201.508.10

230.00--0.020.44

0.010.020.03--

390.0065.0054.0075.001.604.3010.00

300.000.209.10--

120.00 --

40.00

45.00------

668.00

28.00

0.000.012.00

600.006.680.907.93

200.40--0.000.33

0.000.010.01--

242.0045.6029.0046.201.302.845.24

112.000.205.52----

82.00 --

20.00--10.00------

399.60

10.50




SAMPLE SIZE

154160505050505050505050


***0.479.0911.0616**.00521


*.507.836 £


QLOGQ

KKKKKKK

LOGQKK

LOGQ

REGRESSION CONSTANT

*^*

-63.6-16.0-6.07* if

-.479*

-190-125

*


(r2 ) OF F

0.37.41.44.86.75.82.24.08.56.09.84.79.27

0 .0001.0001.0001.0001.0001.0001.0003.0511.0001.0380.0001.0001.0001


* k

~k

49.913.57.36**1.19*

56.4111

*

90


STATION NUMBER: 09216576 STATION NAME AND LOCATION: GAP CREEK BELOW BEANS SPRING CREEK NEAR SOUTH BAXTER, WYO. DRAINAGE AREA: 36 SQUARE MILES



TEMPERATURE (DEG C)STREAMFLOW, INSTANTANEOUS (FT3/S)TURBIDITY (NTU)SPECIFIC CONDUCTANCE (MICROSIEMENS)OXYGEN, DISSOLVEDOXYGEN DEMAND, BIOCHEMICAL, 5 DAYPH (UNITS)ALKALINITY (AS CAC03)NITROGEN, AMMONIA DISSOLVED (AS N)NITROGEN, AMMONIA TOTAL (AS N)NITROGEN, AMMONIA + ORGANIC TOTAL





SAM PLE MAXIMUM MINIMUM MEANSIZE

64 25.00 0.0066 14.00 0.2050 800.00 1.0060 2020.00 270.0019 12.80 7.1016 7.30 1.0025 8.90 7.9021 364.00 153.006 0.08 0.01

15 0.12 0.0117 1.80 0.24

17 0.21 0.028 0.20 0.01

18 0.85 0.024 0.03 0.01

21 790.00 290.0021 120.00 59.0021 120.00 30.0021 110.00 16.0021 1.70 0.4021 9.00 3.4021 27.00 12.0021 610.00 120.0021 0.60 0.3021 14.00 7.704 3.00 1.001 <100.00 <100.00

21 260.00 80.004 2.00 <2.004 <20.00 <20.004 3.00 <2.00

21 1700.00 <10.004 8.00 <2.005 160.00 70.004 <20.00 <20.004 2.00 <1.009 4600.00 11.00

21 1210.00 382.00

4 <0.50 <0.5053 13200.00 10.00


49 51.860 *21 *21 .41621 .037121 .079221 .078721 .0010921 3.4021 .0093921 .456

SOLIDS, SUM OF CONSTITUENTS, DISSOLVED 21 .719SEDIMENT, SUSPENDED 48 701

PERCENT OF SAMPLES IN WHICH VALUESSTANDARD WERE LESS THAN OR EQUAL TO THOSE SHOWNDEVIA- 95 75 50 25 5TION (MEDIAN)

9.061.65

64.92909.92

9.892.61--

243.52--0.050.77

0.09 0.19--

442.3886.2955.1940.670.795.0517.00

255.710.4410.80--

129.05-- ------------

617.76

--642.53

7.67 24.25 15.752.47 5.70 1.70

129.93 318.00 61.25401.24 1795.00 1020.00

1.84 12.80 11.301.54 7.30 3.30

8.84 8.4549.05 361.00 269.00__0.04 0.12 0.070.47 1.80 1.15

0.07 0.21 0.15__0.20 0.85 0.22__

151.82 790.00 510.0016.05 120.00 97.0028.70 120.00 68.0028.81 109.00 55.500.41 1.68 1.151.73 8.93 6.004.23 26.80 19.50

164.97 609.00 340.000.08 0.60 0.501.62 13.90 12.00____

45.04 254.00 155.00 __

1556.00 70.00__ ______

259.72 1209.00 725.00

__2127.96 3860.92 343.50


INDEPENDENT REGRESSION nF?!^MTNA?To!f VARIABLE CONSTANT DETERMINATION

QLOGQ

KKKKKK

LOGQKKKQ

-19.6 0.77* .46* .44

62.4 .9652.4 .68

-17.1 .97-31.1 .95

-.205 .895.26 .748 . 43 .63

-161 .97-38.9 .98

-635 .77

8.250.66

21.00745.00

9.302.408.30

239.00 0.030.59

0.07 0.12--

400.0087.0044.0027.000.604.3016.00

190.000.4011.00----

110.00 ----

60.00------ --

520.00

--98.00

1.00 0.000.50 0.314.75 1.00

642.50 512.508.30 7.101.40 1.008.20 7.93

208.50 156.90 0.02 0.010.44 0.24

0.04 0.02__0.07 0.02__

325.00 291.0073.50 59.8034.50 30.2018.00 16.200.50 0.403.85 3.4113.50 12.00

130.00 120.000.40 0.309.35 7.80 __

95.00 81.00 __

30.00 <10.00__-- __

424.00 382.00

35.00 17.40

SIGNIFICANCE STANDARD PROBABILITY ERROR OF

OF F ESTIMATE

0.0001.0001.0010.0001.0001.0001.0001.0001.0001.0001.0001.0001.0001

61.0**

32.99.345.346.75.140.911

2.6528.142.0

1080

91


STATION NUMBER: 09216750 STATION NAME AND LOCATION: SALT WELLS CREEK NEAR SALT WELLS, WYO. DRAINAGE AREA: 526 SQUARE MILES




MINIMUM MEANSIZE


(AS N)NITROGEN, N02+N03 TOTAL (AS N)NITROGEN, N02+N03 DISSOLVED (AS N)PHOSPHORUS, TOTAL (AS P)PHOSPHORUS, ORTHO, DISSOLVED (AS P)HARDNESS (AS CAC03)CALCIUM DISSOLVEDMAGNESIUM, DISSOLVEDSODIUM, DISSOLVEDSODIUM ADSORPTION RATIOPOTASSIUM, DISSOLVEDCHLORIDE, DISSOLVEDSULFATE DISSOLVEDFLUORIDE, DISSOLVEDSILICA, DISSOLVEDARSENIC DISSOLVED (UG/L)BORON, DISSOLVED (UG/L)CADMIUM DISSOLVED (UG/L)CHROMIUM, DISSOLVED (UG/L)COPPER, DISSOLVED (UG/L)IRON, DISSOLVED (UG/L)LEAD, DISSOLVED (UG/L)MANGANESE, DISSOLVED (UG/L)ZINC, DISSOLVED (UG/L)SELENIUM, DISSOLVED (UG/L)PHYTOPLANKTON, TOTAL (CELLS PER ML)SOLIDS, SUM OF CONSTITUENTS,DISSOLVED


831187477282530272727

273

272

282828282828282827284

28444

2846441

27

468

24823

912006700

1188

3530

90

22

270

1800290250660

725

440220C

1121

9706

<2017

21003

30<20

20

3900

<080700

.00

.00

.00

.00

.60

.20

.60

.00

.37

.00

.80

.60

.00

.02

.00

.00

.00

.00

.40

.00

.00

.00

.90

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.50

.00

0.000.0015.00

420.004.501.407.70

100.000.000.46

0.010.360.110.01

370.0081.0041.00100.002.001.40

49.00420.00

0.203.801.00

240.00<2.00

<20.002.00

<10.00<2.00

<10.0020.001.000.00

827.00

<0.50175.00

10.1920.44

6781.762532.21

8.914.07

194.740.118.85

0.58--3.83--

951.43174.29126.71265.00

3.6513.48

156.541090.36

0.517.30--

569.29-- --------------

1921.96

--13627.46

DEVIA- 95TION

6.51 2083.78 54

12466.40 253241074.71 5000

1.68 111.92 7

861.71 3170.11 018.11 66

0.64 2__5.64 22

325.53 166550.63 29053.82 232122.28 570

1.14 65.19 24

85.94 363440.99 2065

0.30 12.00 11--

212.98 943------

1263---- ----

744.02 3700

--17015.39 47659

75OR EQUAL

50


25SHOWN

5(MEDIAN)

.00

.85

.90

.00

.51

.84

.60

.40

.35

.40

.48-.60-.00.00.00.00.41.10.50.00.38.55-.00---.00-----.00

-.93

15.0011.00

8700.003000.00

10.555.558.50

240.000.216.20

0.75 5.10--

1200.00205.00170.00307.50

4.1015.75

200.001375.00

0.508.48--

787.50------

107.50----------

2270.00

--22274.96

11.502.15

2100.002300.00

8.503.808.35

220.000.063.20

0.36--2.20--

970.00170.00120.00255.00

3.6514.00

135.001050.00

0.507.10

515.00-- --

70.00---- --

1850.00

--5389.99

3.500.00

942.501800.00

8.022.458.20

150.000.031.60

0.16--0.78--

712.50145.0083.50190.002.9010.0095.50765.00

0.405-68--

405.00------

30.00---- --

1380.00

--1725.00

0.000.00

76.251299.00

5.531.587.81

102.800.000.48

0.02--0.12--

419.5086.4049.55109.002.052.30

52.60429.00

0.243.89--

244.50------

<10.00-- ------

838.60

--267.30




SAMPLE SIZE


66682424242424242424242456


***0.321.0421.0530.135.00118*.0939.477.813*


LOGQLOGQLOGQ

KKKKKKKKK

LOGQ

***

10363.1-13.0-97.0

.438*

-98.5-185-219

*


(r 2 ) OF F

0.11.01.22.78.55.75.91.80.40.90.92.92.34

0 .0064.315.0221.0001.0001.0001.0001.0001.0008.0001.0001.0001.0001


***

15834.627.737.8

.533*

29.0129212

*

92

Table 3.--Statistical summaries of water-quality data from the Green River coal region, based on samples collected from October I, 1974, to September 30, 1981 --Continued

STATION NUMBER: 09216810 STATION NAME AND LOCATION: KILLPECKER CREEK AT ROCK SPRINGS, WYO. DRAINAGE AREA: NOT AVAILABLE




MINIMUM MEANSIZE


(AS N)NITROGEN, N02+N03 TOTAL (AS N)PHOSPHORUS, TOTAL (AS P)CARBON, ORGANIC DISSOLVEDCARBON, ORGANIC SUSPENDEDHARDNESS (AS CAC03)CALCIUM DISSOLVEDMAGNESIUM, DISSOLVEDSODIUM, DISSOLVEDSODIUM ADSORPTION RATIOPOTASSIUM, DISSOLVEDCHLORIDE, DISSOLVEDSULFATE DISSOLVEDFLUORIDE, DISSOLVEDSILICA, DISSOLVEDARSENIC DISSOLVED (UG/L)BORON, DISSOLVED (UG/L)CADMIUM DISSOLVED (UG/L)CHROMIUM, DISSOLVED (UG/L)COPPER, DISSOLVED (UG/L)IRON, DISSOLVED (UG/L)LEAD, DISSOLVED (UG/L)MANGANESE, DISSOLVED (UG/L)ZINC, DISSOLVED (UG/L)SELENIUM, DISSOLVED (UG/L)COLIFORM, FECAL, (COLS/ 100 ML)SOLIDS, SUM OF CONSTITUENTS,MERCURY DISSOLVED (UG/L)

57335728574

57555255

555566

55555555555555555455165416161655161616169

5516

283

15008000

1999

26402743

49

345

550040011003000

21180

33006900

2147

51005

2015

610027

4200100

3560015000

<0

.00

.00

.00

.00

.20

.00

.00

.00

.00

.00

.30

.50

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.50

0.000.002.00

2600.000.604.706.80

176.000.010.90

0.000.0415.000.60

520.0071.0075.00

210.004.004.00

150.00500.00

0.300.20

<1.00410.00<2.00

<20.00<2.00

<10.00<2.008.00

<20.00<1.00

500.001210.00

<0.50

11.060.48

82.395332.14

9.27 --

460.252.435.01

0.631.05--

2086.73226.42368.961160.18

10.8959.65

1197.642464.73

0.836.04

1992.78 --------

1441.75------

5763.27--

DEVIA- 95TION

8.38 260.70 2

237.82 6281753.32 8000

3.59 16__

8333.48 776

4.21 86.22 16

0.79 21.83 5__--

1018.03 360095.06 372

200.14 640577.19 2060

3.61 2036.09 124

675.03 24001237.03 4220

0.30 13.85 13

71006.41 3700

52015

176027

1052.00 4200100

3--

2758.04 9911<0

75OR EQUAL

50


25SHOWN

5(MEDIAN)

.15

.93

.00

.00

.19-.90.00.98.00

.66

.44--.00.00.00.00.00.00.00.00.47.00.00.00.00.00.00.00.00.00.00.00-.99.50

17.500.52

40.007000.00

10.95--8.30

520.003.004.90

0.901.00----

2800.00310.00500.001500.00

12.0083.00

1600.003200.00

0.909.104.75

2700.003.00

20.006.00

320.004.00

1875.0030.001.00

7440.00<0.50

11.000.30

20.005700.00

8.80--8.00

410.000.943.60

0.410.32--

2100.00230.00350.001200.00

11.0059.00

1200.002400.00

0.805.101.50

2000.002.00

<20.004.00

110.003.00

1450.0025.001.00--

5790.00<0.50

2.250.1010.00

3500.006.95 7.80

310.000.192.00

0.120.16----

1200.00140.00180.00670.00

8.3033.00

630.001400.00

0.703.301.00

1000.00<2.00

<20.002.0070.002.00

475.0020.001.00

3460.00<0.50

0.000.003.72

2780.003.80--7.39

199.600.031.00

0.010.06--

552.0083.6088.80344.00

5.3612.50

256.00630.00

0.380.70

<1.00512.50<2.00

<20.00<2.0030.00<2.008.00

<20.00<1.00--

1654.00<0.50




SAMPLE SIZE


2020ia181818181818181818


341**.307.0369.0516.132*.00904.163.328.745


QQKKKKKKKKKK

-86.6**

-248-11.7-50.9-17.8

*-10.8

-163-196-370


(r 2 ) OF F

0.58.14.49.70.62.71.69.24.66.71.67.76

0 .0001.103.0013.0001.0001.0001.0001.0389.0001.0001.0001.0001


248**

37755.062.6167

*12.2

196437796

93


STATION NUMBER: 09216880 STATION NAME AND LOCATION: BITTER CREEK BELOW LITTLE BITTER CREEK NEAR KANDA, WYO. DRAINAGE AREA: NOT AVAILABLE



TEMPERATURE (DEC C)STREAMFLOW, INSTANTANEOUS

(FT3/S)TURBIDITY (NTU)SPECIFIC CONDUCTANCE

(MICROSIEMENS)OXYGEN, DISSOLVEDOXYGEN DEMAND, BIOCHEMICAL,

(5 DAY)PH (UNITS)ALKALINITY (AS CAC03)NITROGEN, AMMONIA DISSOLVED

(AS N)NITROGEN, AMMONIA TOTAL (AS N)NITROGEN, AMMONIA + ORGANIC

TOTAL (AS N)NITROGEN, N02+N03 TOTAL (AS N)NITROGEN, N02+N03 DISSOLVED

(AS N)PHOSPHORUS, TOTAL (AS P)PHOSPHORUS, ORTHO, DISSOLVED

(AS P)CARBON, ORGANIC DISSOLVEDCARBON, ORGANIC SUSPENDEDHARDNESS (AS CAC03)CALCIUM DISSOLVEDMAGNESIUM, DISSOLVEDSODIUM, DISSOLVEDSODIUM ADSORPTION RATIOPOTASSIUM, DISSOLVEDCHLORIDE, DISSOLVEDSULFATE DISSOLVEDFLUORIDE, DISSOLVEDSILICA, DISSOLVEDARSENIC DISSOLVED (UG/L)BORON, DISSOLVED (UG/L)CADMIUM DISSOLVED (UG/L)CHROMIUM, DISSOLVED (UG/L)COPPER, DISSOLVED (UG/L)IRON, DISSOLVED (UG/L)LEAD, DISSOLVED (UG/L)MANGANESE, DISSOLVED (UG/L)ZINC, DISSOLVED (UG/L)SELENIUM, DISSOLVED (UG/L)COLIFORM, FECAL, (COLS/ 100 ML)PHYTOPLANKTON , TOTAL

(CELLS PER ML)SOLIDS, SUM OF CONSTITUENTS,DISSOLVED



6950

6969

6724

69663

6565

644

673

109

6666666666666767676718671818186618211818102

66

187

31.00222.00

5600.007000.00

19.8016.00

9.30919.0013.00

29.0029.00

2.701.50

21.006.70

38.0014.00

1500.00210.00250.00990.0014.0034.00

1100.001900.00

1.6018.00

250.001600.00

2.0020.009.00

1900.006.00

320.0050.003.00

1780000.00130000.00

4000.00

<0.502290.00

MINIMUM

0.000.00

1.001500.00

3.402.50

6.60160.009.20

0.011.10

0.020.06

0.002.70

7.200.90

250.0048.0032.00190.00

3.402.70

100.00230.00

0.300.802.001.00

<2.00<20.00<2.00

<10.00<2.001.00

<20.00<1.00

50000.00420.00

756.00

<0.5023.00

MEAN

10.7912.49

441.133256.52

9.127.49

--308.42

--

9.3013.66

0.66--

6.00--

17.82--

618.79101.8888.26

486.368.7616.17

445.67743.28

0.688.5619.89

732.10----------

146.24----

591199.70--

2075.70

----

STANDARD DEVIA TION

8.8032.13

1150.151046.81

3.842.73

--106.22

--

8.208.19

0.60--

4.16--

8.57--

257.1833.4543.34157.972.394.37

191.20329.96

0.193.33

57.57233.23

----------

93.27----

564344.73--

654.56

----


25.48.

3750.5499.

17.15.

9.430.

--

26.28.

2.--

13.--

38.--

1100.176.166.801.12.22.

746.1420.

1.15.

250.1100.

2.20.9.

370.6.

318.50.3.

1780000.--

3766.

<0.--

5030

0098

2025

1000

5070

15

80

00

005050506565000000800000000000000000000000

00

50

75

17.5010-00

85.003750.00

10.208.30

8.40360.00

__

15.0019.50

0.92--

8.10--

20.75--

782.50120.00112.50590.0011.0018.00

560.00950.00

0.8010.008.00

850.002.00

<20.006.25

152.505.00

210.0032.502.00

784999.25--

2422.50

<0.50--

50 (MEDIAN)

10.004.00

20.003100.00

8.407.05

8.20295.00

__

6.7015.00

0.46--

6.10--

16.50--

540.0093.0074.00

470.008.6516.00

430.00620.00

0.708.105.50

750.00<2.00

<20.004.00

80.002.00

140.0020.00<1.00

460000.00--

1960.00

<0.50--

25

1.252.50

10.002500.00

6.206.45

7.90247.50

--

1.705.35

0.25--

2.40--

11.00--

427.5078.0055.75

380.007.2515.00

310.00520.00

0.606.204.00

620.00<2.00

<20.00<2.0040.00<2.0070.00

<20.00<1.00

225500.00--

1625.00

<0.50--

5

0.000.27

2.501925.00

4.702.70

7.60184.90

--

0.092.88

0.04--

0.28--

7.20--

334.0062.3541.00

247.004.519 . ?*>

124.00384.00

0.443.442.00

304.00<2.00

<20.00<2.00

<10.00<2.002.90

<20.00<1.00

50000.00--

1291.00

<0.50--

94


STATION NUMBER; 09216880 STATION NAME AND LOCATION: BITTER CREEK BELOW LITTLE BITTER CREEK NEAR KANDA, WYO. Continued




SAMPLE SIZE

484846454545454545464646


j~**0.184*.0338.149**.146.250.618


LOGQQQKKKKK

LOGQKKK

REGRESSION CONSTANT

***

18.0JL

-21.7-13.9

**

-46.8-58.137.3


(r 2 )

0.23.04.01.53.33.59.88.34.28.70.58.90


OF F

0.0006.172.545.0001.0001.0001.0001.0001.0002.0001.0001.0001


**j-

169*

27.654.5

J-

-V

97.2216203

95


STATION NUMBER: 09217000 STATION NAME AND LOCATION: GREEN RIVER NEAR GREEN RIVER, WYO. DRAINAGE AREA: 14,000 SQUARE MILES




(AS N)NITROGEN, N02+N03 TOTAL (AS N)NITROGEN, N02+N03 DISSOLVED (AS N)PHOSPHORUS, TOTAL (AS P)PHOSPHORUS, ORTHO, DISSOLVED (AS P)CARBON, ORGANIC DISSOLVEDCARBON, ORGANIC SUSPENDED TOTALHARDNESS (AS CAC03)CALCIUM DISSOLVEDMAGNESIUM, DISSOLVEDSODIUM, DISSOLVEDSODIUM ADSORPTION RATIOPOTASSIUM, DISSOLVEDCHLORIDE, DISSOLVEDSULFATE DISSOLVEDFLUORIDE, DISSOLVEDSILICA, DISSOLVEDARSENIC DISSOLVED (UG/L)BARIUM, DISSOLVED (UG/L)BORON, DISSOLVED (UG/L)CADMIUM DISSOLVED (UG/L)CHROMIUM, DISSOLVED (UG/L)COPPER, DISSOLVED (UG/L)IRON, DISSOLVED (UG/L)LEAD, DISSOLVED (UG/L)MANGANESE, DISSOLVED (UG/L)ZINC, DISSOLVED (UG/L)SELENIUM, DISSOLVED (UG/L)COLIFORM, FECAL, (COLS/ 100 ML)STREPTOCOCCI FECAL, (COLS/ 100 ML)PHYTOPLANKTON , TOTAL (CELLS PER ML)SOLIDS, SUM OF CONSTITUENTS,DISSOLVED


SAM PLE SIZE

15914814214781297479185968

6828673101179797979797979797978229

622222227122242222148

1578

2180

MAXIMUM

23.8410.400.

1350.12.6.9.

176.0.0.9.

0.0.0.0.

10.2.

330.78.33.

110.2.

12.22.

350.0.8.2.

200.200.23,

<20.16,

1300,1660,70,1,

400100,

19000687,

16570

00,0000,00,70,701000,14,73,40

,32,69,41,04.00,30.00.00.00.00.80.00.00.00.60.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00.00

.10

.00

MINIMUM

0.00275.00

0.00310.00

6.201.407.80

107.000.000.000.12

0.000.000.000.003.300.20

130.0034.0011.0016.000.601.402.90

47.000.100.30

<1.0050.00<20.00<2.00

<20.00<2.00

<10.00<2.00

<10.00<20.00<1.0028.006.00

160.00186.00

<0.502.00

MEAN

9.561817.9820.20

626.549.942.98__

144.330.030.070.89

0.080.150.05--5.830.77

226.3355.2221.4153.461.522.389.15

178.720.255.31 ---- -------- ----

82.71

2933.33411.87

--181.49

STANDARD DEVIA TION

7.451808.2552.26176.98

1.421.36--

17.410.040.111.38

0.060.180.07--2.100.57

43.279.404.99

21.260.491.263.70

70.390.071.68-------------- ----

95.63--

4835.85112.28

--806.25


21.006739.48100.00950.0012.386.158.73

166.000.140.181.70

0.200.650.15--10.002.30

290.0068.0031.0099.002.503.8016.00

320.000.407.802.00--

128.5020.60

<20.0016.00

254.0014.9552.5068.501.00

400.00--

19000.00619.45

1.00381.95

75

16.001867.50

15.00740.0011.004.108.53

160.000.060.080.95

0.120.140.05--7.181.00

250.0063.0024.0064.001.802.4011.00

210.000.306.401.00--

80.002.25

<20.005.2570.004.00

<10.0020.00<1.0086.00--

2600.00462.50

<0.5081.50

50 (MEDIAN)

9.501040.00

5.00600.0010.202.608.30

150.000.020.040.59

0.070.090.03--5.750.60

230.0055.0021.0050.001.502.108.20

170.000.205.751.00--

60.00<2.00

<20.002.50

30.002.00

<10.00<20.00<1.0054.50--

1300.00404.00

<0.5027.00

25

1.00768.25

2.00510.00

8.751.858.20

130.000.010.020.41

0.030.050.02--3.550.50

200.0050.0018.0042.001.201.906.90

140.000.204.301.00--

50.00<2.00

<20.00<2.0020.00<2.00

<10.00<20.00<1.0031.50--

450.00353.50

<0.5011.25

5

0.00362.35

1.00360.00

7.811.407.98

110.000.000.000.19

0.000.000.01--3.300.20

150.0038.0013.0019.000.701.603.70

61.000.201.90

<1.00--

31.50<2.00

<20.00<2.00

<10.00<2.00

<10.00<20.00<1.0028.00

160.00228.00

<0.506.00

96


STATION NUMBER: 09217000 STATION NAME AND LOCATION: GREEN RIVER NEAR GREEN RIVER, WYO.--Continued


WATER QUALITY CONSTITUENT SAMPLE

TURBIDITY (NTU)SPECIFIC CONDUCTANCE (MICROS IEMENS)ALKALINITY (AS CAC03)HARDNESS (AS CAC03)CALCIUM, DISSOLVEDMAGNESIUM, DISSOLVEDSODIUM, DISSOLVEDSODIUM ADSORPTION RATIOPOTASSIUM, DISSOLVEDCHLORIDE, DISSOLVEDSULFATE, DISSOLVEDSOLIDS, SUM OF CONSTITUENTS, DISSOLVEDSEDIMENT, SUSPENDED

SIZE

1271357070707070707070707064

REGRESSIONCOEFFICIENT

*-428

/v

.249

.0502

.0300

.126

.00280*.0186.427.688-v

INDEPENDENTVARIABLE

KLOGQ

KKKKKKKKKKK

REGRESSION (CONSTANT

*1,950

*66.222.72.32

-25.9-.239*

-2.52-93.0-25.4

*

:OEFFICIENT 01DETERMINATION

(r 2 )

0.08.63.37.80.71.84.82.75.04.59.86.88.19

SIGNIFICANC!

OF F

0.0013.0001.0001.0001.0001.0001.0001.0001.0883.0001.0001.0001.0003

r STANDARDj O 1 rtil LJt\£\±J

CDDriD ATTC.KKUK Ur

ESTIMATE

/' r

110 k

20.25.112.069.55.259 k

2.5127.440.4

k

97


STATION NUMBER: 09217010 STATION NAME AND LOCATION: GREEN RIVER BELOW GREEN RIVER, WYO. DRAINAGE AREA: NOT AVAILABLE


WATER QUALITY CONSTITUENT p

PERCENT OF SAMPLES INAM- STANDARD WERE LESS THAN OR EQUALLE MAXIMUM MINIMUM MEAN

SIZE

TEMPERATURE (DEC C)STREAMFLOW, INSTANTANEOUS (FT3/S)TURBIDITY (NTU)SPECIFIC CONDUCTANCE (MICROS IEMENS)OXYGEN, DISSOLVEDOXYGEN DEMAND, BIOCHEMICAL, 5 DAYPH (UNITS)ALKALINITY (AS CAC03)NITROGEN, AMMONIA TOTAL (AS N)NITROGEN, AMMONIA + ORGANIC TOTAL

(AS N)NITROGEN, N02+N03 TOTAL (AS N)NITROGEN, N02+N03 DISSOLVED (AS N)PHOSPHORUS, TOTAL (AS P)CARBON, ORGANIC DISSOLVEDCARBON, ORGANIC SUSPENDED TOTALHARDNESS (AS CAC03)CALCIUM DISSOLVEDMAGNESIUM, DISSOLVEDSODIUM, DISSOLVEDSODIUM ADSORPTION RATIOPOTASSIUM, DISSOLVEDCHLORIDE, DISSOLVEDSULFATE DISSOLVEDFLUORIDE, DISSOLVEDSILICA, DISSOLVEDARSENIC DISSOLVED (UG/L)BORON, DISSOLVED (UG/L)CADMIUM DISSOLVED (UG/L)CHROMIUM, DISSOLVED (UG/L)COPPER, DISSOLVED (UG/L)IRON, DISSOLVED (UG/L)LEAD, DISSOLVED (UG/L)MANGANESE, DISSOLVED (UG/L)ZINC, DISSOLVED (UG/L)SELENIUM, DISSOLVED (UG/L)COLIFORM, FECAL, (COLS/ 100 ML)PCB, TOTAL (UG/L)PCB, TOTAL IN BOTTOM MATERIAL (UG/KG)PHYTOPLANKTON, TOTAL (CELLS PER ML)SOLIDS, SUM OF CONSTITUENTS,DISSOLVED


92768484837175816971

711771119

82828282828282828282187318181865181818182099

1381

182

2377003001000

1389

20005

000

102

3307834

15043

34330

0153

24013

<2010

470354050<1

170001

5900665

296620

.00

.00

.00

.00

.20

.80

.10

.00

.31

.00

.34

.49

.59

.00

.20

.00

.00

.00

.00

.30

.50

.00

.00

.60

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

0.00298.00

1.00340.00

6.200.807.60

108.000.000.08

0.000.020.013.900.30

130.0034.0012.0016.000.081.502.60

49.000.100.20<1.00

<20.00<2.00

<20.00<2.00

<10.00<2.00

<10.00<20.00<1.0066.000.000.00

710.00190.00

<0.5042.00

9.241630.35

30.60657.8010.032.75--

145.730.090.79

0.100.120.106.38--

229.1555.4422.0457.071.592.1912.12

183.680.255.27------ -- -- ----

677.20----

1722.31423.83

--

DEVIA- 95TION

7.49 211467.00 5022

63.12 225152.91 965

1.53 121.32 5

818.95 1710.07 00.68 2

0.09 00.12 00.10 02.07 10--

43.95 3009:55 705.11 30

24.60 1000.61 20.46 36.28 24

69.36 3200.08 02.07 7

312313

<2010

2303540502

454.64 1695----

1375.88 5900116.83 645

29--

75 50


25SHOWN

5(MEDIAN)

.35

.49

.00

.00

.60

.18

.92

.80

.23

.16

.33

.49

.29

.00-

.00

.85

.85

.00

.60

.09

.70

.00

.38

.69

.00

.50

.00

.00

.00

.00

.00

.00

.00

.00

.00--

.00

.60

.00-

16.001820.0020.00

750.0011.003.308.60

160.000.130.90

0.130.160.107.90--

260.0062.2525.0068.251.902.4016.25

220.000.306.551.25

90.002.00

<20.004.00

80.006.00

20.0022.50<1.00

860.00----

1550.00492.00

<0.50

9.001030.00

8.00632.5010.102.508.40

150.000.060.64

0.080.080.075.70--

230.0055.5022.0053.001.502.1010.50

180.000.205.701.00

70.00<2.00

<20.002.00

40.002.50

<10.00<20.00<1.00

695.00--

1300.00414.00

<0.50--

0.63822.75

3.78572.50

8.901.908.20

130.000.040.47

0.040.040.045.10--

200.0048.7518.7542.501.201.807.55

140.000.203.981.00

60.00<2.00

<20.00<2.0020.00<2.00

<10.00<20.00<1.00

342.50----

955.00357.50

<0.50--

0.00384.30

1.00392.50

7.821.268.00

110.000.010.23

0.000.020.013.90--

150.0037.4513.0021.300.631.604.75

66.800.201.80

<1.0027.00<2.00

<20.00<2.00

<10.00<2.00

<10.00<20.00<1.0067.10----

710.00230.90

<0.50--




SAMPLE SIZE


686966676767676767676766


-413*

*

.257

.0518

.0313

.137

.00296*

.0301

.422

.712


LOGQLOGQ

KKKKKKKKKK

*

1,930*

55.120.11.02

-35.0-.403

JL.

-8.08-98.4-54.3


(r 2 ) OF F

0.04.63.43.87.79.91.90.72.44.61.90.94

0 .0917.0001.0001.0001.0001.0001.0001.0001.0001.0001.0001.0001


J-

98.5*

16.04.311.587.52.299J-

3.9122.530.4

98


STATION NUMBER: 09218500 STATION NAME AND LOCATION: BLACKS FORK NEAR MILLBURNE, WYO. DRAINAGE AREA: 152 SQUARE MILES

DESCRIPTIVE




(AS N)NITROGEN, N02+N03 TOTAL (AS N)NITROGEN, N02+N03 DISSOLVED (AS N)PHOSPHORUS, TOTAL (AS P)PHOSPHORUS, ORTHO, DISSOLVED (AS P)HARDNESS (AS CAC03)CALCIUM DISSOLVEDMAGNESIUM, DISSOLVEDSODIUM, DISSOLVEDSODIUM ADSORPTION RATIOPOTASSIUM, DISSOLVEDCHLORIDE, DISSOLVEDSULFATE DISSOLVEDFLUORIDE, DISSOLVEDSILICA, DISSOLVEDARSENIC, DISSOLVED (UG/L)BARIUM, DISSOLVED (UG/L)BORON, DISSOLVED (UG/L)CADMIUM, DISSOLVED (UG/L)CHROMIUM, DISSOLVED (UG/L)COPPER, DISSOLVED (UG/L)IRON, DISSOLVED (UG/L)LEAD, DISSOLVED (UG/L)MANGANESE, DISSOLVED (UG/L)ZINC, DISSOLVED (UG/L)SELENIUM, DISSOLVED (UG/L)PHYTOPLANKTON, TOTAL (CELLS PER ML)SOLIDS, SUM OF CONSTITUENTS,DISSOLVED




54543850212

12113

1832

12121212121212124

1222

11222

1226222

12

251

161150

825010

.00 1.

.00 6.

.00 0.

.00 30.

.40 9.2.60 2.8

84000

0200

912572011

1305

<1<100

40<2

<20<2

1802

60<20<1

1100101

<0354

SAMPLE SIZE

SOLIDS, SUM OF CONSTITUENTS, DISSOLVEDSEDIMENT, SUSPENDED (MG/L)

37501111111111111111111149

.20 8.

.00 23.

.02 0.

.19 0.

.93 0.

.06 0.

.30 0.

.02 0.

.02 0.

.00 28.

.00 8.

.00 2.

.10 1.

.10 0.

.00 0.

.80 0.

.00 3.

.10 0.

.90 3.

.00 <1.

.00 <100.

.00 <20.

.00 <2.

.00 <20.

.00 <2.

.00 20.

.00 <2.

.00 <10.

.00 <20.

.00 <1.

.00 440.

.00 35.

.50 <0.

.00 2.

5010000070600000021915

060201010000000010408000102000000000000000000000000000

5000


0.00662-57.2

***********

6.94243.88

2.24117.10

----

50.25------

------

56.9215.954.171.480.100.611.126.10--4.36 ---- ----

84.17----------

65.25

--14.63

STANDARD DEVIATION

4.47323.59

1.8850.47 ----19.76------

----

20.695.601.690.390.000.210.332.77__0.95________----

46.80----------

21.63

--48.76

REGRESSION

PERCENT OF SAMPLES IN WHICH VALUESWERE LESS THAN OR EQUAL TO THOSE95 75 50 25

SHOWN5

(MEDIAN)

15.251092.50

7.05214.50

----

84.00------

--------

91.0025.007.002.100.101.001.80

13.00--5.90----

40.00----

180.00--------

101.00

--23.80

9.75423.00

3.00150.00

----

67.50 --

--

71.0020.005.301.850.100.681.407.10--5.25----

<20.00------

120.00-- -- --

80.75

--11.00

6.0067.501.50

110.00------

51.50 ----

------

55.0016.003.951.400.100.601.005.45 4.15 --

<20.00 ----

75.00---- ----

63.00

--7.00

2.8825.501.00

70.00----

30.50--

--------

36.5010.282.601.080.100.430.834.30 3.38----

<20.00------

42.50------ --

43.75

._4.00

1.506.770.95

45.50------

23.00------

------

28.008.002.001.000.100.400.803.00--3.20--

<20.00------

20.00----------

35.00

--2.00

STATISTICS

INDEPENDENT REGRESSION ^ VARIABLE CONSTANT

QLOGQLOGQLOGQLOGQLOGQ

KKKQK

LOGQK

1.12229

***********

FFICIENT C ERMINATIOJ (r2 )

0.71.63.34.30.28.29.25.05.03.35.42.24.00

)F SIGNIFICANCE I PROBABILITY

OF F

0 .0001.0001.0576.0812.0924.0847.118.0001.596.0557.0307.124.696


1.0330.9****-«

*

*

*

*

k

*

99

Table 3.--Statistical summaries of water-quality data from tAe Green River coal region, based on samples collected from October 1, 1974, to September 30, 1981 Continued

STATION NUMBER: 09221650 STATION NAME AND LOCATION: SMITHS FORK NEAR LYMAN, WYO. DRAINAGE AREA: NOT AVAILABLE

DESCRIPTIVE STATISTICSCAM-

WATER QUALITY CONSTITUENT ^ MAVTMITV. PLE MAXIMUM MINIMUM MEANSIZE

TEMPERATURE (DEC C)STREAMFLOW, INSTANTANEOUS (FT3/S)TURBIDITY (NTU)SPECIFIC CONDUCTANCE (MICROSIEMENS)OXYGEN, DISSOLVEDPH (UNITS)ALKALINITY (AS CAC03)NITROGEN, AMMONIA TOTAL (AS N)NITROGEN, N02+N03 TOTAL (AS N)NITROGEN, N02+N03 DISSOLVED (AS N)PHOSPHORUS, TOTAL (AS P)HARDNESS (AS CAC03)CALCIUM DISSOLVEDMAGNESIUM, DISSOLVEDSODIUM, DISSOLVEDSODIUM ADSORPTION RATIOPOTASSIUM, DISSOLVEDCHLORIDE, DISSOLVEDSULFATE DISSOLVEDFLUORIDE, DISSOLVEDSILICA, DISSOLVEDARSENIC DISSOLVED (UG/L)BORON, DISSOLVED (UG/L)CADMIUM, DISSOLVED (UG/L)CHROMIUM, DISSOLVED (UG/L)COPPER, DISSOLVED (UG/L)IRON, DISSOLVED (UG/L)LEAD, DISSOLVED (UG/L)MANGANESE, DISSOLVED (UG/L)ZINC, DISSOLVED (UG/L)SELENIUM, DISSOLVED (UG/L)COLIFORM, FECAL, (COLS/ 100 ML)PCB, TOTAL IN BOTTOM MATERIAL (UG/KG)SOLIDS, SUM OF CONSTITUENTS,DISSOLVED


8476808484418411

805684848484848484848484

11711121111

121

84

141

26350

45003400

159

390000

1341011034

650219

260850

1274

2000<25

<240<2

<10<20

3228

02000

<016200

.00

.00

.00

.00

.10

.20

.00

.05

.09

.67

.00

.00

.00

.00

.00

.00

.20

.00

.00

.60

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.50

.00

0.000.901.00

400.006.307.50

130.000.050.090.000.02

52.0016.003.00

36.001.302.10

23.0037.000.203.404.00

100.00<2.005.00<2.00

<10.00<2.00

<10.00<20.00

3.0042.000.00

242.00

<0.5022.00

8.6851.85186.87

1190.139.69--

240.11----0.110.70

206.5654.4817.08

187.925.923.76

95.57236.06

0.6013.17

316.47 ---- --------

121.17--

753.35

--800.97

STANDARD DEVIATION

8.1986.44

594.44618.04

1.45--

57.84 --0.142.04

54.7515.835.71

137.524.761.04

55.10185.49

0.394.04--

449.96---- -- ----

60.58--

396.80

--2653.04


OR EQUAL50


25SHOWN

5(MEDIAN)

22.37277.551177.502400.00

11.808.89

337.50----0.475.12

280.0079.5026.75

465.0015.505.38

225.00617.50

1.4020.75--

2000.00-- ------------

228.00--

1532.50

--5726.96

15.0046.5095.00

1515.0010.708.55

283.75----0.150.24

230.0062.0020.00

270.007.784.18

127.50357.50

0.9015.75--

310.00 -- -- ------

177.50--

1027.50

--407.00

8.2514.0023.50

990.009.758.30

229.50----0.060.08

210.0057.0016.00

135.004.003.65

80.00155.00

0.4013.50--

190.00----------------

100.00

639.50

--120.00

0.504.7010.00

752.758.608.10

205.00 --0.030.05

180.0041.2514.0084.502.603.20

57.50100.00

0.3011.00--

120.00-- ---- ----

82.50

459.50

--56.00

0.001.302.10

495.007.507.61

130.00----0.010.02

112.5028.757.45

48.251.702.40

28.2550.250.205.83

100.00-- ------ ----

42.00

297.00

--27.20




SAMPLE SIZE

SOLIDS, SUM OF CONSTITUENTS, DISSOLVEDSUSPENDED SEDIMENT

72767676767676767676767637

REGRESSION INDEPENDE] COEFFICIENT VARIABLE

-611*

.0710***.221.00691*.0804.299.642*

LOGQLOGQ

KQQKKKKKKK

LOGQ

*T RFCRFSSTON COEFFICIENT OF SIGNIFICANCE »cTAxrr DETERMINATION PROBABILITY CONSTANT ^j) OF F

*1,880

154**-V

-74.-2.

*-.

-118-10.

*

332

386

9

0.06.56.57.25.14.44.97.84.15.80.96.98.06

0 .0378.0001.0001.0001.0010.0001.0001.0001.0005.0001.0001.0001.157


*37935.4***

20.81.72J.

22.833.250.5*

100

Table 3.--Statistical summaries of water-qruality data from the Green River coal region, based on samples collected from October 1, 1974, to September 30, 1981--Continued

STATION NUMBER: 09222000 STATION NAME AND LOCATION: BLACKS FORK NEAR LYMAN, WYO.DRAINAGE AREA: 821 SQUARE MILES

DESCRIPTIVE


TEMPERATURE (DEC C)TEMPERATURE (DEC C)STREAMFLOW, INSTANTANEOUS (FT3/S)TURBIDITY (NTU)SPECIFIC CONDUCTANCE (MICROSIEMENS)OXYGEN, DISSOLVEDOXYGEN DEMAND, BIOCHEMICAL, 5 DAYPH (UNITS)ALKALINITY (AS CAC03)NITROGEN, AMMONIA DISSOLVED (AS N)NITROGEN, AMMONIA TOTAL (AS N)NITROGEN, AMMONIA + ORGANIC TOTAL

(AS N)NITROGEN, N02+N03 TOTAL (AS N)NITROGEN, N02+N03 DISSOLVED (AS N)PHOSPHORUS, TOTAL (AS P)HARDNESS (AS CAC03)CALCIUM DISSOLVEDMAGNESIUM, DISSOLVEDSODIUM, DISSOLVEDSODIUM ADSORPTION RATIOPOTASSIUM, DISSOLVEDCHLORIDE, DISSOLVEDSULFATE DISSOLVEDFLUORIDE, DISSOLVEDSILICA, DISSOLVEDARSENIC DISSOLVED (UG/L)BARIUM, DISSOLVED (UG/L)BORON, DISSOLVED (UG/L)CADMIUM, DISSOLVED (UG/L)CHROMIUM, DISSOLVED (UG/L)COPPER, DISSOLVED (UG/L)IRON, DISSOLVED (UG/L)LEAD, DISSOLVED (UG/L)MANGANESE, DISSOLVED (UG/L)ZINC, DISSOLVED (UG/L)SELENIUM, DISSOLVED (UG/L)COLIFORM, FECAL, (COLS/ 100 ML)

SAM PLE MAXIMUMSIZE

17 21151 26133 2200133 8700144 600075 121 7

43 886 3302 02 03 1

1 079 33 2

87 130087 30087 15087 69087 1186 687 16087 230086 187 202 71 <100

86 19002 <22 <202 9

87 4302 33 202 <202 49 650

PCB, TOTAL IN BOTTOM MATERIAL (UG/KG) 1 0PHYTOPLANKTON, TOTAL (CELLS PER ML)SOLIDS, SUM OF CONSTITUENTS,DISSOLVED


1 61086 3650

2 <091 13800

.00

.50

.00

.00

.00

.40

.80

.90

.00

.19

.06

.40

.03

.00

.00

.00

.00

.00

.00

.00

.60

.00

.00

.60

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.50

.00

STATISTICS

MINIMUM

0.0.2.1.

300.6.7.6.

66.0.0.0.

0.0.0.

140.36.7.

62.1.0.

23.120.

0.4.3.

<100.100.<2.

<20.<2.

<10.<2.

<10.<20.

3.20.0.

610.373.

<0.3.

000030000070808000040568

03000300003000905000002020000000000000000000000000000000

5000

MEAN

10.749.49

139.83225.17

2237.749.47----

210.20------

--0.16--

677.59168.0362.33

273.324.514.14

79.14914.94

0.7311.05----

431.63----------------------

1631.76

--804.29

STANDARD DEVIATION

6.668.29

299.781024.651174.56

1.33----

46.51------

--0.35--

321.2774.2033.26148.03

1.781.09

31.20563.19

0.302.93----

266.48----------------------

836.41

--2089-54


OR EQUAL50

TO THOSE25

SHOWN5

(MEDIAN)

21.0022.20

615.701015.004299.99

11.60--8.76

286.50------

--0.47--

1200.00290.00120.00542.00

8.026.07

140.002000.00

1.2016.00----

872.50------

276.00--------------

3205.50

--5400.00

15.2517.00

123.5040.00

3000.0010.80--8.30

240.00------

--0.19--

920.00230.0084.00

360.005.404.83

98.001300.00

1.0013.00----

582.50------

100.00--------------

2185.00

--267.00

12.009.00

36.0010.00

2100.009.30--8.20

210.00------

--0.06--

650.00160.0059.00

260.004.304.30

78.00830.00

0.7011.00----

380.00------

60.00--------------

1500.00

--90.00

3.500.0014.504.00

1312.508.30--8.10

187.00------

--0.02--

400.00100.0036.00160.003.203.50

58.00430.00

0.509.00----

237.50------

30.00--------------

959.75

--34.00

0.000.006.491.00

677.507.60--7.52

133-50------

--0.01--

194.0052.2015.4083.002. 102.30

27.80232.00

0.306.30----

150.00------

<10.00--------------

514.40

--9.20




SAMPLE SIZE

113125676868686868676868

REGRESSION INDEPENDENT REGRES COEFFICIENT VARIABLE CONST

1500

SOLIDS, SUM OF CONSTITUENTS, DISSOLVED 67SUSPENDED SEDIMENT 75

*

*.265.0593.0282.128.00115*.0238.496.732"

LOGQLOGQ

QKKKKKKKKK

LOGQ

*4,710

if

72.31.-1.-9.2.*

26.-192

*

COEFFICIENT OF SIGNIFICANCE .^ DETERMINATION PROBABILITY Mti (r 2 ) OF F

11324506

6

242

0.02.57.10.87.83.90.92.50.20.73.95.95.11

0 .140.0001.0094.0001.0001.0001.0001.0001.0001.0001.0001.0001.0030


*806

*12531.911.545.11.38if

17.4141196

101

Table 3.--Statistical summaries of water-quality data from the Green River coal region, based on samples collected from October 1, 1974, to September 30, 1981--Coo.tio.ued

STATION NUMBER: 09222300 STATION NAME AND LOCATION: LITTLE MUDDY CREEK NEAR GLENCOE, WYO. DRAINAGE AREA: 416 SQUARE MILES




(AS N)NITROGEN, N02+N03 TOTAL (AS N)NITROGEN, N02+N03 DISSOLVED (AS N)PHOSPHORUS, TOTAL (AS P)PHOSPOHORUS, ORTHO, DISSOLVED (AS P)HARDNESS (AS CAC03)CALCIUM DISSOLVEDMAGNESIUM, DISSOLVEDSODIUM, DISSOLVEDSODIUM ADSORPTION RATIOPOTASSIUM, DISSOLVEDCHLORIDE, DISSOLVEDSULFATE DISSOLVEDFLUORIDE, DISSOLVEDSILICA, DISSOLVEDARSENIC DISSOLVED (UG/L)BORON, DISSOLVED (UG/L)CADMIUM DISSOLVED (UG/L)CHROMIUM, DISSOLVED (UG/L)COPPER, DISSOLVED (UG/L)IRON, DISSOLVED (UG/L)LEAD, DISSOLVED (UG/L)MANGANESE, DISSOLVED (UG/L)ZINC, DISSOLVED (UG/L)SELENIUM, DISSOLVED (UG/L)PHYTOPLANKTON, TOTAL (CELLS PER ML)SOLIDS, SUM OF CONSTITUENTS,DISSOLVED


SAM PLE MAXIMUMSIZE

119 28109 343117 5400117 550058 1156 661 961 378

1 056 960 10

59 72 0

60 12 0

61 150061 40061 14061 47061 561 1861 9361 190060 161 178 2

60 70008 28 <208 <20

61 4708 39 1008 308 121 650

61 2970

8 <075 3680


MINIMUM MEAN DEVIA- 95 75TION

.00

.00

.00

.00

.80

.20

.10

.00

.01

.40

.00

.30

.23

.80

.02

.00

.00

.00

.00

.90

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.50

.00

0.000.931.00

600.006.800.807-30

40.000.010.000.27

0.010.210.010.01

240.0052.001.00

43.000.801.00

15.00170.000.200.30<1.00150.00<2.00

<20.00<20.00<10.00<2.00

<10.00<20.00<1.00

650.00401.00

<0.508.00

8.1318.43

135.721753.16

9.132.63--

189.51 0.671.46

0.74 0.15--

725.74173.1171.16126.98

1.957.01

39.11731.80

0.615.45--

2167.50------ ----------

1271.31

--289.36

746

568896

11-

80-11

1-0-

262722697

13

19394

03-

1435---------

598

-579

.15 21

.11 74

.57 425

.45 3720

.35 11

.19 48

.03 346-.58 3.61 4

.25 4-.28 0-.71 1380.72 363.47 130.23 339.16 4.45 15.08 88.84 1790.18 0.54 11-.72 5484---

322-----.96 2918

-.42 1348

.00

.50

.00

.00

.61

.91

.69

.00-.84.98

.30-.50-.00.00.00.00.19.90.40.00.90.90-.99---.00-----.00

-.00

13.5013.0055.00

1900.0010.203.158.20

235.00--0.311.50

0.84--0.16--

810.00205.0084.00145.002.457.70

49.00850.00

0.788.10--

2700.00 --

80.00-- ------

1440.00

--279.00

OR EQUAL50


25SHOWN

5(MEDIAN)

8.007.40

20.001480.00

9.202.308.00

190.00--0.080.99

0.27--0.07--

650.00160.0064.0085.001.405.7034.00

630.000.605.30--

1850.00 ----

40.00------ --

1070.00

--88.00

0.504.257.50

1250.007.901.907.80

137.50--0.020.62

0.07--0.04--

575.00130.0055.0065.501.204.8524.50

495.000.502.65--

1200.00 ----

30.00------

899.00

--47.00

0.001.802.36

879.506.901.087.60

56.40--0.010.40

0.01--0.01--

430.0081.0040.1047.200.913.6116.20

251.000.310.41--

251.50------

<10.00------ --

619.10

--14.20




SAMPLE SIZE

104106565656565656565656


<


).52**.303.0771.0266.115.00122.00356*.475.735*


QLOGQLOGQ

KKKKKKKKK

LOGQ

-27.9**

20941.226.2

-66.1-.109.852*

-70.226.4*


(r 2 ) OF F

0.56.09.18.85.72.62.90.72.69.47.90.95.40

0 .0001.0022.0011.0001.0001.0001.0001.0001.0001.0001.0001.0001.0001


403j.*

10539.216.832.0

.6201.94*

128138

x

102

Table 3.--Statistical summaries of water-quality data from the Green River coal region, jbased on samples collected from October 1, 1974, to September 30, 1981 Continued

STATION NUMBER: 09222400 STATION NAME AND LOCATION: MUDDY CREEK NEAR HAMPTON, WYO.DRAINAGE AREA: 963 SQUARE MILES






SAM PLE MAXIMUM MINIMUM MEANSIZE

135 25125 455123 4400130 500064 1257 765 963 410

1 055 563 8

62 33 0

64 42 0

63 120062 27062 14063 45062 663 2163 40063 220061 163 148 91 <100

61 65008 48 <208 <20

63 8208 198 208 208 63 3400

63 2800

8 <086 7780

.00 0.

.00 0.

.00 1.

.00 340.

.20 7.

.00 0.

.80 7.

.00 50.

.23 0.

.00 0.

.70 0.

.00 0.

.64 0.

.80 0.

.01 0.

.00 0.

.00 37.

.00 14.

.00 22.

.10 0.

.00 3.

.00 27.

.00 30 .

.00 0.

.00 0.

.00 1.

.00 <100.

.00 50.

.00 <2.

.00 <20.

.00 <20.

.00 <10.

.00 <10.

.00 <10.

.00 <20.

.00 <1.

.00 610.

.00 223.

.50 <0.

.00 4.

0000000020605000230030

000201010000000090800000202000000000000000000000000000

5000

9.3446.37

221.631671.35

9.492.79--

204.57--0.211.22

0.40--0.45--

581.90123.8168.48154.56

2.6111.06

108.10576.05

0.495.30----

1534.10-------------- --

1169.35

866.74

STANDARD DEVIATION

7.9578.03

522.21846.67

1.241.43

83.41--0.681.17

0.60--0.91

263.2759.0829.6297.241.164.99

69.78422.12

0.183.28 --

1284.64------ ----

590.36

--1633.35



25SHOWN

5(MEDIAN)

21.232.1100.3300.

11.5.8.

341. 0.3.

1. 3.

1100.248.130.384.

4.20.

228.1500.

0.9.----

4040.-- --

540.---- ----

2390.

--5100.

6070000055928460

8052

78

07

00500000908000008096

00

00

00

00

16.0043.00160.00

2000.0010.503.208.40

250.00--0.141.20

0.41 0.39

710.00160.0081.00190.00

3.1315.00

150.00670.00

0.607.80 --

2150.00------

90.00----------

1370.00

--650.00

10.009.60

40.001525.00

9.452.608.20

200.00--0.050.93

0.18--0.10--

580.00120.0065.00140.00

2.5011.0097.00

460.000.405.50--

1300.00------

40.00------ --

1040.00

--136.00

0.003.9015.00

1187.508.601.758.00

137.00--0.030.71

0.05--0.04--

420.0077.5053.7589.001.686.70

50.00300.00

0.401.90----

670.00--

20.00------ --

798.00

~56.00

0.000.223.00

511.007.400.987.60

63.60--0.000.46

0.01--0.01--

182.0044.3020.1537.001.124.28

28.6069.600.200.50 --

160.00------

<10.00---- --

327.20

--8.70




SAMPLE SIZE

107117515150505150515151



*-706

**.0622.0385.116.00140**.496.710

14.1


QLOGQLOGQLOGQ

KKKKKKKKQ

*2360

**

21.7.

-44.

**

-233-28.185

3062236

8


(r 2 ) OF F

0.32.50.14.31.56.76.90.69.45.24.83.93.55

0,.0001.0001.0060.0001.0001.0001.0001.0001.0001.0003.0001.0001.0001


J_

581#*

37.814.729.7

.650..i.

*178154

1,190

103


STATION NUMBER: 09224050 STATION NAME AND LOCATION: HAMS FORK NEAR DIAMONDVILLE, WYO. DRAINAGE AREA: NOT AVAILABLE




MINIMUM MEANSIZE


(AS N)NITROGEN, N02+N03 TOTAL (AS N)PHOSPHORUS, TOTAL (AS P)CARBON, ORGANIC DISSOLVEDCARBON, ORGANIC SUSPENDEDHARDNESS (AS CAC03)CALCIUM DISSOLVEDMAGNESIUM, DISSOLVEDSODIUM, DISSOLVEDSODIUM ADSORPTION RATIOPOTASSIUM, DISSOLVEDCHLORIDE, DISSOLVEDSULFATE DISSOLVEDFLUORIDE, DISSOLVEDSILICA, DISSOLVEDARSENIC DISSOLVED (UG/L)BORON, DISSOLVED (UG/L)CADMIUM DISSOLVED (UG/L)CHROMIUM, DISSOLVED (UG/L)COPPER, DISSOLVED (UG/L)IRON, DISSOLVED (UG/L)LEAD, DISSOLVED (UG/L)MANGANESE, DISSOLVED (UG/L)ZINC, DISSOLVED (UG/L)SELENIUM, DISSOLVED (UG/L)COLIFORM, FECAL, (COLS/ 100 ML)SOLIDS, SUM OF CONSTITUENTS,DISSOLVED


75627575747375756772

737498

75757574747573747575187518181875181818181273

1811

198262108001379

21012

11

103

330942543

13

16200

083

19003

<207

9708

170401

4900478

<020

.50

.00

.00

.00

.40

.00

.10

.00

.60

.00

.20

.30

.00

.70

.00

.00

.00

.00

.10

.40

.00

.00

.60

.20

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.50

.00

0.004.801.00

310.004.201.507.20

94.000.010.21

0.000.024.200.30

130.0038.009.204.900.200.902.20

26.000.100.10

<1.00<20.00<2.00

<20.00<2.00

<10.00<2.00

<10.00<20.00<1.00

400.00185.00

<0.504.00

6.94121.7610.83

501.538.763.15

156.810.280.93

0.190.25----

235.4766.5316.9514.760.411.806.97

99.300.273.86--------------------

2788.33304.62

8.27

DEVIA- 95TION

6.69 17200.93 73227.67 56106.12 692

1.93 121.25 5

826.35 1990.32 00.36 1

0.19 00.21 0--__

49.19 31413.75 894.02 246.76 280.17 00.45 23.06 13

42.29 1620.09 02.17 7

3963

<207

3728

17040

11776.07 4900

74.99 420

<04.76 20

75OR EQUAL

50


25SHOWN

5(MEDIAN)

.80

.30

.00

.00

.40

.78

.90

.20

.87

.67

.65

.70--.00.60.00.75.72.54.00.50.40.04.00.00.00.00.00.00.00.00.00.00.00.30

.50

.00

13.50101.25

6.00570.00

9.703.808.20

180.000.431.10

0.250.31----

280.0079.0019.0018.000.502.008.70

130.000.305.702.00

60.00<2.00

<20.003.25

90.004.00

95.00<20.00<1.00

4725.00359.50

<0.5012.00

5.5041.503.70

510.008.852.807.90

160.000.160.92

0.140.20----

230.0066.0018.0014.500.401.906.90

110.000.303.801.00

50.00<2.00

<20.00<2.0050.002.00

40.00<20.00<1.00

2550.00308.00

<0.507.00

0.0020.502.00

400.007.672.207.60

140.000.070.68

0.060.11----

190.0054.0014.009.780.301.504.45

64.000.202.101.00

30.00<2.00

<20.00<2.0030.00<2.0027.50

<20.00<1.00

1220.00233.00

<0.505.00

0.007.321.00

360.005.021.707.38

110.000.020.39

0.010.03----

170.0048.8010.805.880.201.082.74

32.000.100.30

<1.0020.00<2.00

<20.00<2.00

<10.00<2.00

<10.00<20.00<1.00

400.00200.40

<0.504.00




SAMPLE SIZE


62626262626262626261616111


*j. ;V

0.408.106.0343.0526iV*.0229.340.656.337


QLOGQ

KKKKKKKKKKQ

***

26.311.7-.409

-11.6**

-4.52-72.1-28.6-2.16


(r 2 ) OF F

0.26.33.42.86.78.82.68.46.20.61.75.92.77

0 .0001.0001.0001.0001.0001.0001.0001.0001.0003.0001.0001.0001.0004


**-'.

17.46.041.693.87**1.97

21.121.12.39

104


STATION NUMBER: 09224450 STATION NAME AND LOCATION: HAMS FORK NEAR GRANGER, WYO.DRAINAGE AREA: 670 SQUARE MILES

DESCRIPTIVE


STATISTICS PERCENT OF SAMPLES INSTANDARD WERE LESS THAN

MINIMUM MEANSIZE


(AS N)NITROGEN, N02+N03 TOTAL (AS N)NITROGEN, N02+N03 DISSOLVED (AS N)PHOSPHORUS, TOTAL (AS P)HARDNESS (AS CAC03)CALCIUM DISSOLVEDMAGNESIUM, DISSOLVEDSODIUM, DISSOLVEDSODIUM ADSORPTION RATIOPOTASSIUM, DISSOLVEDCHLORIDE, DISSOLVEDSULFATE DISSOLVEDFLUORIDE, DISSOLVEDSILICA, DISSOLVEDARSENIC DISSOLVED (UG/L)BARIUM, DISSOLVED (UG/L)BORON, DISSOLVED (UG/L)CADMIUM DISSOLVED (UG/L)CHROMIUM, DISSOLVED (UG/L)COPPER, DISSOLVED (UG/L)IRON, DISSOLVED (UG/L)LEAD, DISSOLVED (UG/L)MANGANESE, DISSOLVED (UG/L)ZINC, DISSOLVED (UG/L)SELENIUM, DISSOLVED (UG/L)PHYTOPLANKTON, TOTAL (CELLS PER ML)SOLIDS, SUM OF CONSTITUENTS,DISSOLVED

MERCURY, DISSOLVED (UG/L)

SEDIMENT, SUSPENDED

8380547521

4081111

1267781818181817881818176211222222221

80

2

81

2213504001180

818

270000

021

44011046

12025

51360

1242

<100703

<2013202

40<20<1

760827

<0

1500

.50

.00

.00

.00

.10

.60

.60

.00

.09

.14

.55

.04

.30

.80

.00

.00

.00

.00

.50

.00

.00

.00

.60

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.50

.00

0.0.1.

340.5.1.7.

98.0.0.0.

0.0.0.

130.32.7.

11.0.0.1.

41.0.0.1.

<100.70.<2.

<20.3.

20.<2.5.

<20.<1.

760.217.

<0.

3.

0000000000605000091455

0400000000800030409000201000000000000000000000000000

50

00

8.43135.7527.46

650.72------

183.78------

--0.220.12

274.6971.7723.2242.351.092.0419.11

152.930.433.49-------- ------------

428.02

92.60

DEVIA- 95TION

7.75 20.80252.34 820.7062.62 148.75165.55 970.00

____

8.6030.21 230.00----__

__0.50 1.840.26 0.45

62.43 389.0015.43 99.907.15 36.0019.23 76.700.40 1.970.65 3.009.98 39.00

62.69 285.000.17 0.603.65 6.90__________--------__--__

117.57 666.50

__

195.63 422.00

75OR EQUAL

50


25SHOWN

5(MEDIAN)

16.00105.7520.00

740.00----8.40

200.00------

--0.140.11

310.0083.5028.0050.001.252.30

23.00185.000.504.10----------------------

483.50

--

67.00

8.0027.008.00

660.00----

8.20189.00

------

--0.030.04

280.0070.0023.0040.001.001.95

18.00150.00

0.402.70------------------------

423.50

--

36.00

0.5014.005.75

530.00----

8.10164.00

------

--0.000.02

225.0060.0018.5032.000.801.60

12.00120.00

0.301.50------------------------

340.75

--

17.00

0.000.061.00

416.00----

7.50136.30

------

--0.000.01

190.0050.0013.0019.100.601.193.64

57.200.300.80------------------------

251.60

--

9.00




SAMPLE SIZE


47686666666666666366666565


-195*

*.319.0677.0371.100.00192*.0480.342.657*

INDEPENDENT REGRESSION j^E] VARIABLE CONSTANT

LOGQLOGQ

KKKKKKKKKKQ

*975

*59.226.1-1.90

-24.4-.184*

-13.3-76.6-16.4

*

JTICIENT iRMINATIO (r 2 )

0.20.57.41.80.63.82.89.76.03.74.88.92.29

OF SIGNIFICANCE 'N PROBABILITY

OF F

0 .0016.0001.0001.0001.0001.0001.0001.0001.215.0001.0001.0001.0001


*112

*}?

27.28.822.976.06.182*4.88

21.531.7*

105

Table 3.--Statistical summaries of water-quality data from the Green River coal region, based on samples collected from October 1, 1974, to September 30, I981--Continued

STATION NUMBER: 09224700 STATION NAME AND LOCATION: BLACKS FORK RIVER NEAR LITTLE AMERICA, WYO. DRAINAGE AREA: 3,100 SQUARE MILES



TEMPERATURE (DEG C)STREAMFLOW, INSTANTANEOUS (FT3/S)TURBIDITY (NTU)SPECIFIC CONDUCTANCE (MICROS IEMENS)OXYGEN, DISSOLVEDOXYGEN DEMAND, BIOCHEMICAL, 5 DAYPH (UNITS)ALKALINITY (AS CAC03)NITROGEN, AMMONIA DISSOLVED (AS N)NITROGEN, AMMONIA TOTAL (AS N)NITROGEN, AMMONIA + ORGANIC TOTAL

(AS N)NITROGEN, N02+N03 TOTAL (AS N)NITROGEN, N02+N03 DISSOLVED (AS N)PHOSPHORUS, TOTAL (AS P)PHOSPHORUS, ORTHO, DISSOLVED (AS P)HARDNESS (AS CAC03)CALCIUM DISSOLVEDMAGNESIUM, DISSOLVEDSODIUM, DISSOLVEDSODIUM ADSORPTION RATIOPOTASSIUM, DISSOLVEDCHLORIDE, DISSOLVEDSULFATE DISSOLVEDFLUORIDE, DISSOLVEDSILICA, DISSOLVEDARSENIC DISSOLVED (UG/L)BARIUM, DISSOLVED (UG/L)BORON, DISSOLVED (UG/L)CADMIUM DISSOLVED (UG/L)CHROMIUM, DISSOLVED (UG/L)COPPER, DISSOLVED (UG/L)IRON, DISSOLVED (UG/L)LEAD, DISSOLVED (UG/L)MANGANESE, DISSOLVED (UG/L)ZINC, DISSOLVED (UG/L)SELENIUM, DISSOLVED (UG/L)COLIFORM, FECAL (COLS/ 100 ML)PCB, TOTAL (UG/L)

SAM

PLE MAXIMUMSIZE

164 27152 3450144 10200147 450086 122 5

45 888 3202 02 04 1

2 083 44 12 0

88 110088 22088 15088 62088 888 1288 31088 190087 088 132 31 200

87 14002 42 302 20

88 13002 44 602 602 39 6209 0

PCB, TOTAL IN BOTTOM MATERIAL (UG/KG) 8 0PHYTOPLANKTON, TOTAL (CELLS PER ML)SOLIDS, SUM OF CONSTITUENTS,MERCURY, DISSOLVED (UG/L)SEDIMENT, SUSPENDED

2 2100088 31902 <0

94 8780

.00

.00

.00

.00

.60

.20

.90

.00

.41

.05

.80

.08

.20

.40

.01

.00

.00

.00

.00

.20

.00

.00

.00

.80

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.50

.00

STANDARD MINIMUM MEAN DEVIA-

0.000.200.00

470.006.301.707.70

75.000.020.020.27

0.030.000.020.01

180.0040.0016.0041.001.202.6016.00

120.000.200.102.00

200.00110.00<2.00

<20.00<2.00

<10.00<2.00

<10.00<20.00

1.0023.000.000.00

18000.00361.00<0.502.00

9.05312.76256.431583.20

9.70----

192.19------

--

0.17----

499.32117.2650.16191.02

3.605.0172.92

603.520.496.40----

431.03------------------------

1163.73--

690.70

TION

7.87562.491011.54734.98

1.65----

45.34------

--

0.47 --

200.8143.9023.86106.96

1.421.67

47.47355.07

0.152.70----

267.57------------------------

557.56--

1526.87


OR EQUAL50


25SHOWN

5(MEDIAN)

22.1568.1525.2960.

12.--

8.277.

----

--

0.----

903.200.95.

427.6.8.

172.1355.

0.11.----

1100.------

371.-- -------- --

2306.

5022.

7550000036

6450

58

00007550937000007055

00

00

00

50

15.00307.75100.00

2000.0011.20

8.40220.00

----

--

0.16----

627.50140.0064.00

240.004.255.75

82.50777.500.607.90----

530.00------

87.50-------- ------

1450.00--

502.00

9.0074.0010.00

1500.009.55--

8.20185.50 ----

--

0.07----

490.00120.0046.00170.00

3.304.65

64.00545.00

0.506.50----

380.00------

40.00------------

1085.00--

79.00

0.5021.505.00

980.008.37--

8.10160.00

------

--

0.02----

340.0084.0032.00120.00

2.803.90

46.00315.00

0.404.70----

250.00------

20.00------------ --

745.25--

34.75

0.005.091.00

620.007.17--

7.70120.00

------

--

0.01----

224.5054.9018.4555.001.503.05

24.45153.500.241.55----

120.00------

<10.00----------------

412.45--

8.75




SAMPLE SIZE

128134737373737373737373


-768


*

*.245.0472.0307.142.00174.00180.0571.463.742*


QLOGQ

QKKKKKKKKKQ


*3050

*94.37.

-35.

2.-18.

-141-32.

*

992412855143

4

0.09.65.05.82.67.87.90.75.59.72.89.92.37

0,.0004.0001.0623.0001.0001.0001.0001.0001.0001.0001.0001.0001.0001


*452

*88.825.49.09

35.6.761

1.1527.3123166

w

106


STATION NUMBER: 09229500 STATION NAME AND LOCATION: HENRYS FORK NEAR MANILA, UTAHDRAINAGE AREA: 520 SQUARE MILES

DESCRIPTIVE


STATISTICS PERCENT OF SAMPLES IN WHICH VALUESSAM- STANDARD WERE LESS THAN OR EQUAL TO THOSEPLE MAXIMUM MINIMUM MEAN DEVIA- 95SIZE

TEMPERATURE (DEC C)STREAMFLOW, INSTANTANEOUS (FT3/S)TURBIDITY (NTU)SPECIFIC CONDUCTANCE (MICROSIEMENS)OXYGEN, DISSOLVEDOXYGEN DEMAND, BIOCHEMICAL, 5 DAYPH (UNITS)ALKALINITY (AS CAC03)NITROGEN, AMMONIA DISSOLVED (AS N)NITROGEN, AMMONIA + ORGANIC TOTAL

(AS N)NITROGEN, N02+N03 TOTAL (AS N)NITROGEN, N02+N03 DISSOLVED (AS N)PHOSPHORUS, TOTAL (AS P)PHOSPHORUS, ORTHO, DISSOLVED (AS P)HARDNESS (AS CAC03)CALCIUM DISSOLVEDMAGNESIUM, DISSOLVEDSODIUM, DISSOLVEDSODIUM ADSORPTION RATIOPOTASSIUM, DISSOLVEDCHLORIDE, DISSOLVEDSULFATE DISSOLVEDFLUORIDE, DISSOLVEDSILICA, DISSOLVEDBORON, DISSOLVED (UG/L)IRON, DISSOLVED (UG/L)MANGANESE, DISSOLVED (UG/L)PHYTOPLANKTON, TOTAL (CELLS PER ML)SOLIDS, SUM OF CONSTITUENTS,DISSOLVED

SEDIMENT, SUSPENDED

8077397111

106612

16462

66656566656566656566616011

66

52

231300700

2700748

36901

71800

1600310200140

11976

15001

29590720160

25002470

4740

.00 0.

.00 0.

.00 1.

.00 370.

.30 7.

.90 4.

.40 7.

.00 118.

.02 0.

.60 0.

.20 7.

.00 0.

.11 0.

.02 0.

.00 0.

.00 46.

.00 14.

.00 13.

.60 0.

.00 3.

.00 3.

.00 80.

.80 0.

.00 11.

.00 80.

.00 <10.

.00 160.

.00 2500.

.00 247.

.00 6.

00450000309080000277

20010101000000004050800020000000000000

00

10.59108.6495.67

1392.18------

231.06----

--1.37----

751.52166.8384.5268.701.05

10.5426.98

589.480.5417.95

254.92------

1112.62

537.87

TION

7.51 21234.79 630176.62 700618.77 2540

____

838.58 280____

__2.84 6____

342.50 136565.33 28442.04 15032.65 1260.29 13.38 1613.28 49

333.24 12000.27 13.49 23

134.36 490339

__--

511.53 1979

987.40 3125

75 50 25SHOWN

5(MEDIAN)

.97

.70

.00

.00--.40.00--

-.77--.00.00.00.50.50.00.00.00.11.65.00.00--.00

.49

16.3768.0070.00

2000.00----8.40

250.50----

--1.50----

1100.00235.00120.0096.751.30

13.0039.00

855.000.60

20.00395.00127.50

----

1615.00

575.00

12.2533.0020.00

1210.00----8.25

238.50----

--0.27----

655.00150.0070.0056.501.009.60

22.00470.00

0.5017.50

190.0065.00----

948.50

135.50

2.004.353.00

950.00----8.00

216.00----

--0.13----

507.50120.0056.0044.750.807.85

18.00360.00

0.4016.00

155.0040.00----

750.00

38.25

0.001.591.00

458.00----7.80

144.00----

--0.04----

235.0071.4031.3026.000.605.8911.35193.000.3013.00

110.00<10.00

----

463.80

7.95




SAMPLE SIZE


39685757565657565657565752


*-683

*.507.0963.0631

-42.6-.358

-4.39.0203.520.730*


LOGQLOGQ

QKKK

LOGQLOGQLOGQ

KKKQ

REGRESSION CONSTANT

*2,360

*.0728

22.8-8.81

1241.52

16.4-2.63

-15532.1*


(r 2 ) OF F

0.21.73.30.81.83.81.80.69.77.79.83.74.40

0 .0038.0001.0001.0001.0001.0001.0001.0001.0001.0001.0001.0001.0001


*329

*14826.418.214.7

.1671.686.36

142260

*

107


STATION NUMBER: 09235300 STATION NAME AND LOCATION: VERMILLION CREEK NEAR HIAWATHA, COLO. DRAINAGE AREA: 196 SQUARE MILES






SAM PLE MAXIMUMSIZE

133 28125 75126 23000134 320066 1161 667 865 524

1 058 163 20

65 55 0

63 123 0

65 150064 52064 10064 31064 566 1664 3964 160065 064 747 21 <100

64 4807 47 <207 6

63 42007 79 7107 307 13 4400

65 2560

7 189 13200

.00

.00

.00

.00

.60

.80

.80

.00

.08

.10

.00

.80

.56

.00

.04

.00

.00

.00

.00

.00

.00

.00

.00

.60

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.50

.00


MINIMUM MEAN

0.0.1.

700.6.0.7.

100.0.0.0.

0.0.0.0.0.

40.27.87.1.2.3.

220.0.4.1.

<100.10.<2.

<20.<2.

<10.<2.30.

<20.<1.

1300.185.

<0,9.

0000000070806000080025

00010101000000002010600020700000000000,00,0000.00,00,00.00.00

,50.00

9.813.34

775.431626.60

9.292.81--

354.54--0.071.76

0.30--0.76--

566.77115.8869.31200.89

3.684.5924.97

599.690.3413.14----

172.97------------------

1226.46

--1238.47

DEVIA- 95TION

9.19 258.08 15

2417.16 4190446.85 2600

1.55 111.55 6

875.86 483 0.15 02.68 6

0.73 0--1.84 4--

223.71 106775.28 29014.16 9253.51 2970.67 41.83 78.19 37

296.93 14500.07 08.18 17----

60.49 275------

1372__--------

427.89 2265

--2316.50 5989

75OR EQUAL

50


25SHOWN

5(MEDIAN)

.65

.40

.00

.00

.30

.40

.56

.50-.16.18

.89-.42-.00.00.00.50.80.60.75.00.47.50--.00---.00-----.00

-.98

18.002.65

562.501850.00

10.623.608.40

410.00--0.081.90

0.27--0.79--

625.00127.5081.00

240.004.105.0031.75

687.500.4014.00----

180.00------

110.00-- ----

1425.00

--1380.00

8.501.60

91.001500.00

9.602.408.30

350.00--0.051.10

0.18--0.12--

510.0094.5068.50190.003.654.30

25.00520.00

0.3012.00----

165.00------

60.00----------

1130.00

--256.00

0.000.5429.75

1350.007.801.658.10

310.00--0.020.60

0.05--0.06--

455.0078.2561.00160.003.303.6819.25

392.500.3010.00----

140.00------

30.00----------

953.00

--126.50

0.000.022.00

960.006.800.917.90

231.60--0.000.32

0.00--0.02--

325.0058.5044.25112.502.432.7010.25

302.500.207.80----

120.00------

<10.00----------

674.80

--13.50



TURBIDITY (NTU)SPECIFIC CONDUCTANCE (MICROSIEMENS)ALKALINITY (MG/L AS CAC03)HARDNESS (AS CAC03)CALCIUM, DISSOLVEDMAGNESIUM, DISSOLVEDSODIUM, DISSOLVEDSODIUM ADSORPTION RATIOPOTASSIUM, DISSOLVEDCHLORIDE, DISSOLVEDSULFATE, DISSOLVED

SAMPLE SIZE

113120555554545454565454



***0.435.133.0228.0944***.617.892*


QLOGQ

QKKKK

LOGQKKKK

LOGQ

* k

k

-167-107

30.539.2

***

-439-283

*


(r 2 ) OF F

0.35.38.21.69.57.50.60.36.29.27.81.81.43

0 .0001.0001.0004.0001.0001.0001.0001.0001.0001.0001.0001.0001.0001


*~n

*

13353.210.536.0* k

*

139201

-A-

108

Table 3.--Statistical summaries of water-quality data from the Green River coal region, based on samples collected from October 1, 1974, to September 30, 1981--Contiimed

STATION NUMBER: 09253000 STATION NAME AND LOCATION: LITTLE SNAKE RIVER NEAR SLATER, COLO. DRAINAGE AREA: 285 SQUARE MILES

DESCRIPTIVE


STATISTICS PERCENT OF SAMPLES INSTANDARD WERE LESS THAN OR


TEMPERATURE (DEC C)STREAMFLOW, INSTANTANEOUS (FT3/S)TURBIDITY (NTU)SPECIFIC CONDUCTANCE (MICROSIEMENS)OXYGEN, DISSOLVEDPH (UNITS)ALKALINITY (AS CAC03)NITROGEN, AMMONIA + ORGANIC TOTAL

(AS N)NITROGEN, N02+N03 TOTAL (AS N)NITROGEN, N02+N03 DISSOLVED (AS N)PHOSPHORUS, TOTAL (AS P)PHOSPHORUS, ORTHO, DISSOLVED (AS P)CARBON, ORGANIC DISSOLVEDCARBON, ORGANIC SUSPENDED TOTALHARDNESS (AS CAC03)CALCIUM DISSOLVEDMAGNESIUM, DISSOLVEDSODIUM, DISSOLVEDSODIUM ADSORPTION RATIOPOTASSIUM, DISSOLVEDCHLORIDE, DISSOLVEDSULFATE DISSOLVEDFLUORIDE, DISSOLVEDSILICA, DISSOLVEDARSENIC DISSOLVED (UG/L)BARIUM, DISSOLVED (UG/L)BORON, DISSOLVED (UG/L)CADMIUM DISSOLVED (UG/L)CHROMIUM, DISSOLVED (UG/L)COPPER, DISSOLVED (UG/L)IRON, DISSOLVED (UG/L)LEAD, DISSOLVED (UG/L)MANGANESE, DISSOLVED (UG/L)ZINC, DISSOLVED (UG/L)SELENIUM, DISSOLVED (UG/L)PHYTOPLANKTON , TOTAL (CELLS PER ML)SOLIDS, SUM OF CONSTITUENTS,MERCURY, DISSOLVED (UG/L)SEDIMENT, SUSPENDED

6938

14369

362

12135

111

36363636363536363635

111212222221

3526

211950

1300139

1100

000090

95329

18026

230

229

<100402

<20<2

11011

<10<20<1

510160<0

156

.50

.00

.00

.00

.10

.80

.00

.21

.01

.65

.83

.01

.00

.20

.00

.00

.80

.00

.90

.50

.20

.00

.40

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.00

.50

.00

0.15.1.

60.7.7.

15.0.

0.0.0.0.9.0.

18.4.1.1.0.0.0.0.0.0.9.

<100.40.<2.

<20.<2.40.<2.

<10.<20.<1.

510.34.<0.2.

0000000000200013

01000101002000900010102040000000000000000000000000000000005000

7.62324.52

--167.47

----

63.44--

--0.080.05------

59.1416.974.069.560.521.323.5311.320.2213.36------------------------

98.41----

TION

7.13 20.50530.35 1760.00

__55.47 238.00____

24.89 93.00__

__0.14 0.610.14 0.33______

20.76 89.056.43 26.051.73 7.845.04 17.150.23 0.810.54 2.261.63 6.035.62 22.150.09 0.405.21 22.00__________----------__--

36.19 154.40----

75EQUAL50


25SHOWN

5(MEDIAN)

13.50407.50

--205.00

----

82.00--

--0.080.03------

74.5022.004.6512.750.701.804.6714.750.3019.00------------------------

129.00----

6.5036.75--

180.00----

70.00--

--0.040.02------

63.5018.004.2011.000.601.403.8011.500.2013.00------------------------

106.00----

0.5023.50--

125.00----

36.75--

--0.010.01------

43.7512.253.204.550.320.902.406.950.209.50------------------------

60.00----

0.0015.00--

61.00----19.25--

--0.000.01------

18.855.321.171.610.100.280.480.680.084.40------------------------

37.20----



SPECIFIC CONDUCTANCE (MICROSIEMENS)ALKALINITY (MG/L AS CAC03)HARDNESS (AS CAC03)CALCIUM, DISSOLVEDMAGNESIUM, DISSOLVEDSODIUM, DISSOLVEDSODIUM ADSORPTION RATIOPOTASSIUM, DISSOLVEDCHLORIDE, DISSOLVEDSULFATE, DISSOLVED

SAMPLE SIZE


1910101010101010101010


-68 .1.412.263.0791J-

.0815

.00379***.475


LOGQKKKKKKQ

LOGQKK

COEFFICIENT OFREGRESSION nFTR-RMTMATTHWCONSTANT ^TERMINATION

285-4.1716.13.39*

-4.16-.123***

17.8

0.82.99.89.88.36.91.79.31.05.25.93


OF F

0 .0001.0001.0001.0001.0682.0001.0006.0930.522.146.0001


21.92.305.091.61*1.44.110***7.51

109U.S. GOVERNMENT PRINTING OFFICE: 1988 575-623/85,002 REGION NO. 8

STATISTICAL SUMMARY OF THE CHEMICAL QUALITY ...THE GREEN RIVER COAL REGION, WYOMING By David A....

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