Smith Branch Monitoring Sites - City of Columbia Water€¦ · Smith Branch Monitoring Sites...

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Smith Branch Monitoring Sites Monitoring Data Summary for March 28 th , 2018 May 9 th , 2018 Data Gaps There were no interruptions in the SMIA dataset. The SMIB station experienced some periods of fouling turbidity which were removed from the dataset. At the SMIB station, the specific conductivity sensor and temperature sensor became unsubmerged. During periods where the specific conductivity and temperature sensors were unsubmerged, DO and pH values, which are temperature dependent, were also removed from the dataset. SCDHEC Standards The SMIA station recorded a minimum pH value of 5.9. These low pH values occurred during the storm event on April 23 rd -24 th . The SMIB station did not record any pH readings outside of the acceptable SCDHEC range of 6 to 8.5. The SMIA and SMIB stations recorded average DO concentrations of 7.3 mg/L and 8.5 mg/L, respectively, which are well above the SCDHEC daily average standard of 5 mg/L. The minimum DO concentrations were 4.7 mg/L and 6.8 mg/L at the SMIA and SMIB stations, respectively, which are both above the SCDHEC minimum level of 4 mg/L. Storm Events The SMIA station recorded six storms (at least 0.1 inches) in this monitoring period that resulted in 5.3 inches of precipitation. The SMIB station recorded seven storms (at least 0.1 inches) in this monitoring period that resulted in 5.1 inches of precipitation. The Smith Branch monitoring stations both recorded typical water quality responses to the storm events observed during this monitoring period. The maximum antecedent dry time since the last significant precipitation event (at least 0.1 inch) was approximately 8.2 days prior to the April 7 th storm event at both Smith Branch monitoring stations. Potential Illicit Discharges and Abnormal Events While the sonde was deployed, an abnormal event was observed on March 29 th in the turbidity data at SMIA and SMIB. Two periods of slightly elevated specific conductivity levels were observed at SMIA on April 5 th -7 th and 14 th . Flow Measurements No flow measurements were taken in this watershed during this monitoring period. Notes Minor gaps observed in the pressure transducer dataset during this monitoring period will be replaced with secondary onsite stage data within the continuous dataset. The pressure transducer data gaps are being further investigated.

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Page 1: Smith Branch Monitoring Sites - City of Columbia Water€¦ · Smith Branch Monitoring Sites Monitoring Data Summary for March 28 th, 2018 – May 9 , 2018 Data Gaps • There were

Smith Branch Monitoring Sites Monitoring Data Summary for

March 28th, 2018 – May 9th, 2018 Data Gaps

• There were no interruptions in the SMIA dataset. The SMIB station experienced some periods of fouling turbidity which were removed from the dataset.

• At the SMIB station, the specific conductivity sensor and temperature sensor became unsubmerged. During periods where the specific conductivity and temperature sensors were unsubmerged, DO and pH values, which are temperature dependent, were also removed from the dataset.

SCDHEC Standards

• The SMIA station recorded a minimum pH value of 5.9. These low pH values occurred during the storm event on April 23rd-24th.

• The SMIB station did not record any pH readings outside of the acceptable SCDHEC range of 6 to 8.5.

• The SMIA and SMIB stations recorded average DO concentrations of 7.3 mg/L and 8.5 mg/L, respectively, which are well above the SCDHEC daily average standard of 5 mg/L.

• The minimum DO concentrations were 4.7 mg/L and 6.8 mg/L at the SMIA and SMIB stations, respectively, which are both above the SCDHEC minimum level of 4 mg/L.

Storm Events

• The SMIA station recorded six storms (at least 0.1 inches) in this monitoring period that resulted in 5.3 inches of precipitation. The SMIB station recorded seven storms (at least 0.1 inches) in this monitoring period that resulted in 5.1 inches of precipitation.

• The Smith Branch monitoring stations both recorded typical water quality responses to the storm events observed during this monitoring period.

• The maximum antecedent dry time since the last significant precipitation event (at least 0.1 inch) was approximately 8.2 days prior to the April 7th storm event at both Smith Branch monitoring stations.

Potential Illicit Discharges and Abnormal Events

• While the sonde was deployed, an abnormal event was observed on March 29th in the turbidity data at SMIA and SMIB.

• Two periods of slightly elevated specific conductivity levels were observed at SMIA on April 5th-7th and 14th.

Flow Measurements

• No flow measurements were taken in this watershed during this monitoring period. Notes

• Minor gaps observed in the pressure transducer dataset during this monitoring period will be replaced with secondary onsite stage data within the continuous dataset. The pressure transducer data gaps are being further investigated.

Page 2: Smith Branch Monitoring Sites - City of Columbia Water€¦ · Smith Branch Monitoring Sites Monitoring Data Summary for March 28 th, 2018 – May 9 , 2018 Data Gaps • There were

Continuous Water Quality

Monitoring Periodic Report

Smith Branch A (March 28, 2018 -- May 9, 2018)

MINIMUM

OBSERVED

MAXIMUM

OBSERVED

MEDIAN

OBSERVED

MEAN

OBSERVED

STANDARD

DEVIATION

STREAM NAME: STAGE (FT): 1.8 5.2 1.9 1.9 0.3

LOCATION:

ADDRESS:

COORDINATES:

TMDL/IMPAIRMENT:

NEIGHBORING

LANDUSE:

SPATIAL LOCATION:

MAX. DAILY RAINFALL: 1.6 inches

TOTAL RAINFALL

(FOR PERIOD):5.3 inches

34.027289,-81.04265

Fecal Coliform

Residential and commercial

Most upstream site

PARAMETER

Smith Branch

Earlewood Park

DESCRIPTION

1111 Parkside Dr

Columbia, SC 29201

CONTINUOUS

WATER QUALITY

PARAMETERS:

SUMMARY STATISTICS

TEMPERATURE

(°F):53 73 63 63 4

TURBIDITY (NTU): 3 608

pH: 5.9 7.0

30

0.9

0.1

0.034

8 16

6.7 6.7

TOTAL NO. STORMS

OVER 0.1 INCH:6 0.160 0.155

7.3 7.3DISSOLVED

OXYGEN (mg/L):4.7 9.4

SPECIFIC

CONDUCTIVITY

(mS/cm):

0.026 0.231

3

5

7

9

11

3/28 3/30 4/1 4/3 4/5 4/7 4/9 4/11 4/13 4/15 4/17 4/19 4/21 4/23 4/25 4/27 4/29 5/1 5/3 5/5 5/7 5/9

mg/

L

Dissolved Oxygen 4 mg/L (SCDHEC Low Standard)

0

200

400

600

800

3/28 3/30 4/1 4/3 4/5 4/7 4/9 4/11 4/13 4/15 4/17 4/19 4/21 4/23 4/25 4/27 4/29 5/1 5/3 5/5 5/7 5/9

NTU

Turbidity

0.0

0.5

1.0

1.5

2.01

3

5

7

9

3/28 3/30 4/1 4/3 4/5 4/7 4/9 4/11 4/13 4/15 4/17 4/19 4/21 4/23 4/25 4/27 4/29 5/1 5/3 5/5 5/7 5/9

Rai

nfa

ll, in

Stag

e, f

t

Stage & Rainfall

50

60

70

80

3/28 3/30 4/1 4/3 4/5 4/7 4/9 4/11 4/13 4/15 4/17 4/19 4/21 4/23 4/25 4/27 4/29 5/1 5/3 5/5 5/7 5/9

°F

Water Temp

5.8

6.2

6.6

7.0

7.4

3/28 3/30 4/1 4/3 4/5 4/7 4/9 4/11 4/13 4/15 4/17 4/19 4/21 4/23 4/25 4/27 4/29 5/1 5/3 5/5 5/7 5/9

pH

pH

0.000.060.120.180.240.30

3/28 3/30 4/1 4/3 4/5 4/7 4/9 4/11 4/13 4/15 4/17 4/19 4/21 4/23 4/25 4/27 4/29 5/1 5/3 5/5 5/7 5/9

mS/

cm

Specific Conductivity

SCDHEC in-stream standard: Daily average not less than 5 mg/L with a low of 4 mg/L

Note: Data gaps appear when the sonde is removed for calibration or when the flow depth is below the sensors

REPORT GENERATED ON 6/6/2018

Page 3: Smith Branch Monitoring Sites - City of Columbia Water€¦ · Smith Branch Monitoring Sites Monitoring Data Summary for March 28 th, 2018 – May 9 , 2018 Data Gaps • There were

Continuous Water Quality

Monitoring Periodic Report

Smith Branch A (March 28, 2018 -- May 9, 2018)

Explanation of Statistics:

MINIMUM

OBSERVED

MAXIMUM

OBSERVED

MEDIAN OBSERVED

MEAN OBSERVED

STANDARD

DEVIATION

Grab Sample Data:

Time Result Time Result Time Result Time Result

Escherichia coli

(MPN/100mL)

Total Suspended

Solids (mg/L)

Total Phosphorus

(mg/L)

Total Nitrogen

(mg/L)Note:

The minimum of the values recorded by the datasonde in 15 minute intervals.

The maximum of the values recorded by the datasonde in 15 minute intervals.

The median of all the values recorded by the datasonde in 15 minute intervals.

The average of all the values recorded by the datasonde in 15 minute intervals.

The standard deviation of all the values recorded by the datasonde in 15 minute intervals.

Sample 4Sample 3Sample 1 Sample 2Analyte

(units)

Note: Data gaps appear when the sonde is removed for calibration or when the flow depth is below the sensors

REPORT GENERATED ON 6/6/2018

Page 4: Smith Branch Monitoring Sites - City of Columbia Water€¦ · Smith Branch Monitoring Sites Monitoring Data Summary for March 28 th, 2018 – May 9 , 2018 Data Gaps • There were

Continuous Water Quality

Monitoring Periodic Report

Smith Branch A (March 28, 2018 -- May 9, 2018)

MINIMUM

OBSERVED

MAXIMUM

OBSERVED

MEDIAN

OBSERVED

MEAN

OBSERVED

STANDARD

DEVIATION

STREAM NAME: STAGE (FT): 0.2 4.3 0.2 0.3 0.3

LOCATION:

NEAREST ADDRESS:

COORDINATES:

TMDL/IMPAIRMENT:

NEIGHBORING

LANDUSE:

SPATIAL LOCATION:

MAX. DAILY RAINFALL: 1.6 inches

TOTAL RAINFALL (FOR

PERIOD):5.1 inches

34.037933,-81.0591

Fecal Coliform

Residential and commercial

Most Downstream Site

PARAMETER

Smith Branch

DESCRIPTION

Off Mountain Drive

3950 Clement Rd

Columbia, SC 29203

55 75 63 63 4

0.1

TURBIDITY (NTU): 4 397 10 16 22

pH: 6.5 7.6 7.1 7.1

CONTINUOUS

WATER QUALITY

PARAMETERS:

SUMMARY STATISTICS

TEMPERATURE (°F):

TOTAL NO. STORMS

OVER 0.1 INCH:7

0.7

SPECIFIC

CONDUCTIVITY

(mS/cm):

0.02 0.167 0.112 0.107 0.032

DISSOLVED OXYGEN

(mg/L):6.8 11.0 8.4 8.5

3579

1113

3/28 3/30 4/1 4/3 4/5 4/7 4/9 4/11 4/13 4/15 4/17 4/19 4/21 4/23 4/25 4/27 4/29 5/1 5/3 5/5 5/7 5/9

mg/

L

Dissolved Oxygen 4 mg/L (SCDHEC Low Standard)

0

100

200

300

400

3/28 3/30 4/1 4/3 4/5 4/7 4/9 4/11 4/13 4/15 4/17 4/19 4/21 4/23 4/25 4/27 4/29 5/1 5/3 5/5 5/7 5/9

NTU

Turbidity

0.0

0.5

1.0

1.5

2.00

2

4

6

8

3/28 3/30 4/1 4/3 4/5 4/7 4/9 4/11 4/13 4/15 4/17 4/19 4/21 4/23 4/25 4/27 4/29 5/1 5/3 5/5 5/7 5/9

Rai

nfa

ll, in

Stag

e, f

t

Stage & Rainfall

50

60

70

80

3/28 3/30 4/1 4/3 4/5 4/7 4/9 4/11 4/13 4/15 4/17 4/19 4/21 4/23 4/25 4/27 4/29 5/1 5/3 5/5 5/7 5/9

°F

Water Temp

6.4

6.8

7.2

7.6

8.0

3/28 3/30 4/1 4/3 4/5 4/7 4/9 4/11 4/13 4/15 4/17 4/19 4/21 4/23 4/25 4/27 4/29 5/1 5/3 5/5 5/7 5/9

pH

pH

0.02

0.06

0.10

0.14

0.18

3/28 3/30 4/1 4/3 4/5 4/7 4/9 4/11 4/13 4/15 4/17 4/19 4/21 4/23 4/25 4/27 4/29 5/1 5/3 5/5 5/7 5/9

mS/

cm

Specific Conductivity

SCDHEC in-stream standard: Daily average not less than 5 mg/L with a low of 4 mg/L

Note: Data gaps appear when the sonde is removed for calibration or when the flow depth is below the sensors

REPORT GENERATED ON 6/6/2018

Page 5: Smith Branch Monitoring Sites - City of Columbia Water€¦ · Smith Branch Monitoring Sites Monitoring Data Summary for March 28 th, 2018 – May 9 , 2018 Data Gaps • There were

Continuous Water Quality

Monitoring Periodic Report

Smith Branch A (March 28, 2018 -- May 9, 2018)

Explanation of Statistics:

MINIMUM

OBSERVED

MAXIMUM

OBSERVED

MEDIAN OBSERVED

MEAN OBSERVED

STANDARD

DEVIATION

Sampled Data:

Time Result Time Result Time Result Time Result

Escherichia coli

(MPN/100mL)

Total Suspended

Solids (mg/L)

Total Phosphorus

(mg/L)

Total Nitrogen

(mg/L)Note:

The minimum of the values recorded by the datasonde in 15 minute intervals.

The maximum of the values recorded by the datasonde in 15 minute intervals.

The average of all the values recorded by the datasonde in 15 minute intervals.

The median of all the values recorded by the datasonde in 15 minute intervals.

The standard deviation of all the values recorded by the datasonde in 15 minute intervals.

Sample 4Sample 3Sample 1 Sample 2Analyte

(units)

Note: Data gaps appear when the sonde is removed for calibration or when the flow depth is below the sensors

REPORT GENERATED ON 6/6/2018