Report on the 39th Ave Greenway and Open Channel (39th ......Report on the 39th Ave Greenway and...

Report on the 39th Ave Greenway and Open Channel (39th Ave) PM10 and Metals Ambient Air Study

Conducted for the City and County of Denver, Department of Environmental Health

Montrose Project No. 017AA-550308 Report ID: 017AA-550308-May 2019

June 27, 2019

City and County of Denver Report ID: 017AA-550308-May 2019 Page 1

Table of ContentsPROJECT OVERVIEW ............................................................................................................................... 2

Objectives .................................................................................................................................................... 2 Project Scope ............................................................................................................................................... 2 Contact Information .................................................................................................................................... 2 39th Ave Site Description ............................................................................................................................. 3 Methodology ................................................................................................................................................ 3 Discussion of Results ................................................................................................................................... 4

SUMMARY OF RESULTS .......................................................................................................................... 5

Table 1 – Summary of Ambient PM10 Data ................................................................................................. 5 Table 2 – Summary of Metals Data ............................................................................................................. 6

TEST PROCEDURES................................................................................................................................... 7

Sampling Locations ..................................................................................................................................... 7 Methodology ................................................................................................................................................ 7 Quality Assurance/Quality Control ............................................................................................................. 8

APPENDIX Meteorological Data Sample Calculations Sampling Parameters Laboratory Data Calibration and QA/QC Data Sampling Data Sampling Pictures


Project Overview

Objectives Montrose Air Quality Services, LLC (Montrose) was contracted by the City and County of Denver to perform an ambient air study at the 39th Ave Greenway and Open Channel (39th Ave) site located in Denver, Colorado. The specific objectives of this test program were as follows:

• Determine the concentration of particulate matter with a nominal diameter of 10microns or less (PM10) at each of four (4) sampling locations

• Analyze a fraction of the filters for metals (arsenic, lead, and total chromium)

Testing is being performed to meet the requirements of City and County of Denver and the United States Environmental Protection Agency (U.S. EPA).

This testing is being conducted in support of visual dust monitoring being performed at the site and is not being conducted to demonstrate compliance with National Ambient Air Quality Standards (NAAQS) or Occupational Safety and Health Administration (OSHA) limits. For relative comparison, the table below shows NAAQS and OSHA limits:

Compound Limit Type Limit Arsenic OSHA 8 Hour 10 ug/m3 Lead OSHA 8 Hour 50 ug/m3 Chromium (VI) OSHA 8 Hour 5 ug/m3

PM Total OSHA 8 Hour 10,000 ug/m3 PM Respirable OSHA 8 Hour 5,000 ug/m3 Lead Ambient NAAQS Rolling Three Month 0.15 ug/m3 PM10 Ambient NAAQS 24 Hour 150 ug/m3

Project Scope Sampling commenced February 28, 2018 and is being conducted every six (6) days. All sampling was performed by Montrose. Analysis of the collected samples was performed by IML Air Science located in Sheridan, Wyoming.

Sampling results will be summarized in monthly reports which will continue to be provided on a monthly basis.

Contact Information The contact information for each of the principal parties is summarized in the tables on the following page:


Michael Ogletree Austin Heitmann City and County of Denver Montrose Air Quality Services, LLC 101 W Colfax Ave Suite 800 990 West 43rd Ave Denver, CO 80202 Denver, CO 80216 Phone: (720) 865-2891 Phone: (303) 670-0530 E-mail: [email protected] E-mail: [email protected]

Andrew Ross Mary Hininger City and County of Denver IML Air Science 101 W Colfax Ave Suite 800 555 Absaraka Street Denver, CO 80202 Sheridan, WY 82801 Phone: (720) 865-2891 Phone: (307) 461-4952 E-mail: [email protected] E-mail: [email protected]

39th Ave Site Description The historic Montclair basin is the largest in Denver with no natural drainage. Instead of floodwater flowing through the historic Montclair creek, which was built over in the early 1900’s, water runs through neighborhood streets. In addition to protecting neighborhoods north of 39th Avenue from damaging floodwaters when storms hit, the greenway will provide other neighborhood benefits that will be enjoyed year-round. The greenway will stay mostly dry and convey water only in storm events. The greenway will serve as a safe, community gathering space. The community building design guidelines highlight opportunities for recreational spaces, public art, and storm event safety features. Mobility and connectivity are high priorities for the project. The design guidelines call for pedestrian bridges, a shared street on 39th Avenue (between Franklin to Williams), a bicycle/pedestrian path, and increased connectivity to other neighborhood attractions. Elevated levels of lead and arsenic in the soil from a prior nearby smelting operation, and chromium from a previous electroplating facility has been discovered in soil samples. As part of the 39th Ave project construction activities, the City and County of Denver (CCoD) will conduct additional air monitoring for PM10, lead, chromium, and arsenic at the 39th Ave Project Site.

Methodology The sampling of PM10 is being performed using BGI PQ100 air samplers and is being collected on a tared filter of suitable quality to be able to test for metals after the PM10 analysis was complete. In the sampler, air is drawn by a sample pump through a size selective inlet device. The air then passes inside the instrument housing to a Mass Flow Sensor. The mass of PM10 collected with the sampling train is compared to the volume of ambient air sampled to calculate the PM10 concentration.

Each sample is being collected over a period of 24 hours. Each sampling event starts at midnight and ends at midnight the following day. Sampling dates are being conducted on the same dates as CDPHE PM10 sampling. A portion of the collected filters are additionally being analyzed for arsenic, lead, and total chromium by Inductively Coupled Plasma-Mass Spectrometry (ICP-MS).

mailto:[email protected]




Discussion of Results The PM10 and metals results of all May sampling can be found in Tables 1 and 2 on Pages 5 and 6.

Meteorological data can be found in the Appendix of this report. The data was collected at the I-25 Globeville Site.

The May samples were collected during 39th Ave construction activities.

The PM10 sampling was conducted in support of visual dust monitoring. Due to site constraints within the Monitoring Boundary, the sampling does not meet the NAAQS testing requirements for monitor placement and quality assurance.

All samples collected on 5/6/19 were analyzed for arsenic, lead, and total chromium.

Prepared by: Reviewed by:

Alex Webster Austin Heitmann

City and County of Denver

Report ID: 017AA-550308-May 2019 Page 5

Summary of Results

Table 1 – Summary of Ambient PM10 Data

Site Information Site 1 Site 2 Site 3 Site 4 Limit

Description 39th & Franklin 39th & Gilpin 39th & Williams 39th & High

Latitude 39.771253 39.771274 39.771225 39.771278

Longitude -104.968309 -104.967258 -104.965847 -104.964645

PM10 Results

5/6/19 (µg/scm1) 36.4 36.4 44.1 57.5 150

5/12/19 (µg/scm1) 10.5 12.5 2.92 11.8 150

5/18/19 (µg/scm1) 13.9 13.3 13.0 8.22 150

5/24/19 (µg/scm1) 14.2 16.2 17.7 12.9 150

5/30/19 (µg/scm1) 15.8 15.8 21.0 22.9 150

Notes and Observations

No sampling anomalies were observed

1 Micrograms per standard cubic meter

City and County of Denver

Report ID: 017AA-550308-May 2019 Page 6

Table 2 – Summary of Metals Data

Site Information Site 1 Site 2 Site 3 Site 4 Limit

Description 39th & Franklin 39th & Gilpin 39th & Williams 39th & High

Latitude 39.771253 39.771274 39.771225 39.771278

Longitude -104.968309 -104.967258 -104.965847 -104.964645

Metals Results

Arsenic 5/6/19 (µg/scm2) <0.00241 <0.00242 <0.00242 <0.00243 10

Chromium 5/6/19 (µg/scm2) 0.00434 0.00290 0.00242 0.00340 5

Lead 5/6/19 (µg/scm2) 0.00434 0.00339 <0.00242 0.00631 50

Notes and Observations

No sampling anomalies were observed

2 Micrograms per standard cubic meter


Test Procedures

Sampling Locations Sampling was conducted at the sites indicated below. Pictures of each site can be found on the Appendix of this report.

Methodology The sampling of PM10 was performed using BGI PQ100 air samplers. A sample of ambient air was withdrawn through a size selective inlet device and the PM10 collected on a tared filter of suitable quality to be able to test for metals after the PM10 analysis was complete. After passing through the filter, the air then passed inside the instrument housing to a Mass Flow Sensor. The mass of PM10 collected with the sampling train was compared to the volume of ambient air sampled to calculate the PM10 concentration.

The sample head consisted of a size selective inlet device which was used to remove any particulate matter greater than 10 microns. The air sample then passes through a downtube and into a 47mm filter holder containing a tared filter. After exiting the filter holder, the air then passed inside the instrument housing to a Mass Flow Sensor to measure the air flow.


Prior to sampling the filters were allowed to equilibrate for 24 hours or more with the humidity maintained between 30 and 40% Relative Humidity (RH) and the temperature Maintained between 20oC and 23oC. The RH and temperature data was logged for 24 hours prior to and during weighing. The filters were weighed to the nearest 0.00001gram (g) until a constant weight was achieved.

The filter assembly was loaded into the sampler and the timer set to begin sampling at the predetermined start time. The sampler operates off a 12 volt battery which allowed for sampling for 24 hours without having to connect the sampler to external power. The signal generated by the Mass Flow Sensor was routed to a microprocessor which determined if the flow was at the set value and adjusted the pump speed to maintain the correct flow rate. The microprocessor turned the instrument on and off at the predetermined times and maintained the flow to a designated pressure and temperature value. The microprocessor stored all parametric information generated during the run period and configured it for presentation on the visual display and downloading to the software provided with the sampler.

After sampling, the filter housing was recovered and placed in a labeled anti-static bag. The bag was then shipped to the IML Air Science laboratory located in Sheridan, Wyoming. Filter analysis followed the same procedures used for the tare filter analysis. Metals analysis was conducted by Inductively Coupled Plasma-Mass Spectrometry (ICP-MS).

Quality Assurance/Quality Control To insure the collection of high quality data, the following Quality Assurance/Quality Control procedures have been implemented:

• A field blank was collected for every ten (10) collected PM10 samples. The fieldblanks were handled and analyzed in the same manner as the regular sampledfilters.

• The Mass Flow Sensors measurement of flow through each analyzer was checkedat the start of the program and will be checked again after every five (5) samplingevents. The verification flow rate must compare within four (4) percent of theMass Flow Sensors or the sensor must be calibrated and/or repaired.

Appendix

Meteorological Data

City and County of Denver Meteorological Data - I-25 Globeville5-6-19

Project No. 017AA-550308

Hour RD RH RS TEMP WD WS(MST) deg Percent mph degF deg mph

1:00 AM 29.7 43 8 57 29 92:00 AM 46.8 65 7 53 46 73:00 AM 15.2 79 3 50 17 34:00 AM 27.5 82 2 50 38 25:00 AM 67.8 84 1 49 71 26:00 AM 332.1 81 1 50 7 27:00 AM 341.3 73 2 52 345 38:00 AM 41.8 68 1 53 49 29:00 AM 61.2 61 2 56 59 3

10:00 AM 67.9 56 3 58 72 411:00 AM 14.1 52 4 60 16 512:00 PM 63.7 50 3 61 65 41:00 PM 26.4 45 3 64 23 42:00 PM 73.2 36 3 67 72 43:00 PM 174.5 30 5 69 154 74:00 PM 359.2 30 2 69 0 55:00 PM 6.2 36 11 68 7 116:00 PM 4.2 44 11 66 4 117:00 PM 34.6 53 9 61 42 118:00 PM 71 66 4 57 71 59:00 PM 112.5 75 3 55 118 4

10:00 PM 352 80 5 54 351 511:00 PM 18.5 84 5 51 19 512:00 AM 2.5 90 7 50 3 7




1:00 AM 201.7 68 6 46 201 62:00 AM 207 72 5 44 207 53:00 AM 204 75 4 43 203 44:00 AM 211.9 73 5 42 213 55:00 AM 207.2 69 5 43 209 56:00 AM 215.2 67 4 43 216 47:00 AM 210.7 58 4 47 211 48:00 AM 188.5 46 4 52 187 49:00 AM 149.7 30 2 59 152 3

10:00 AM 45.4 23 4 63 43 411:00 AM 20.4 24 5 64 17 612:00 PM 26.1 24 5 65 29 51:00 PM 49.2 22 2 67 50 42:00 PM 48.4 20 2 69 57 43:00 PM 99.6 19 2 71 98 44:00 PM 100.2 18 2 72 94 35:00 PM 104.7 18 3 72 106 46:00 PM 52.6 18 3 72 51 47:00 PM 75.4 18 2 71 73 28:00 PM 152.9 20 2 69 150 29:00 PM 222.4 23 3 68 231 4

10:00 PM 210.4 29 4 65 216 411:00 PM 196.3 33 6 61 194 612:00 AM 270.4 39 4 58 267 6





10:00 AM 354.6 26 5 57 354 611:00 AM 41.5 40 4 54 52 612:00 PM 116.9 36 7 55 113 81:00 PM 61.6 34 6 56 65 72:00 PM 31.6 30 4 57 27 53:00 PM 32 26 5 59 31 64:00 PM 31.9 25 6 60 34 75:00 PM 67.6 25 3 60 71 46:00 PM 137.2 32 4 59 138 47:00 PM 148 33 1 59 167 38:00 PM 49.5 39 6 56 52 69:00 PM 355.9 63 11 50 357 12

10:00 PM 57.1 73 4 47 56 511:00 PM 67 74 4 46 67 412:00 AM 77 77 4 44 76 5





10:00 AM 167.1 21 5 59 158 611:00 AM 195 18 2 62 191 412:00 PM 141 16 4 64 136 61:00 PM 176.3 15 2 66 167 42:00 PM 335.9 14 2 69 345 43:00 PM 227.2 12 4 71 230 64:00 PM 241.7 12 2 70 248 45:00 PM 320.3 12 7 71 319 76:00 PM 331.4 15 8 70 332 87:00 PM 324.9 16 9 69 325 98:00 PM 319.2 20 6 65 319 69:00 PM 263.9 18 3 64 266 4

10:00 PM 232 18 4 63 231 411:00 PM 257.9 22 1 60 156 412:00 AM 82.3 30 1 57 97 1





10:00 AM 76 32 2 60 73 311:00 AM 77 26 2 62 91 312:00 PM 117.6 26 1 64 119 31:00 PM 64.1 24 2 66 64 42:00 PM 63.7 22 3 68 66 63:00 PM 74.7 22 4 68 73 54:00 PM 55 23 5 68 56 65:00 PM 65.1 23 6 68 65 76:00 PM 114.6 24 4 68 113 57:00 PM 128.8 26 6 67 129 68:00 PM 138.6 28 5 66 141 59:00 PM 199.4 45 8 62 199 8

10:00 PM 205.9 49 7 61 206 711:00 PM 231.7 47 4 59 232 512:00 AM 178.7 50 3 58 175 3

Sample Calculations

Sample Calculations for Site 1 on 5-6-2019 Below are the calculations that are used for generating the PM10 results. See also the “Sampling Parameters” section of the Appendix for run by run results with raw data.

Volume of Ambient Collected Corrected to Standard Conditions Vm(std) = (0.3921)(Vm)(Pb)

(Tm + 273)

Vm(std) = (0.3921)(24.054)(632)

(16.7+ 273)

Vm(std) = 20.6 scm

where: Vm(std) = volume of air collected at standard conditions (scm) Vm = volume of air sampled at meter conditions (m3) Pb = barometric pressure (mm Hg) Tm = average air temperature (oC) 0.3921 = ratio of standard temperature over standard pressure (oK/mm Hg) 273 = conversion (oC to oK)

PM10 Concentration, ug/scm C = (M)(1,000,000)

Vm(std)

C = (0.000324)(1,000,000)

20.6

C = 15.8ug/scm

where: C = PM10 concentration (ug/scm) M = PM10 catch (g) Vm(std) = volume of gas collected at standard conditions (scm) 1,000,000 = conversion factor (ug/g)

Sampling Parameters

City and County of Denver PM10 Sampling Parameters5-6-19

Montrose Project No. 017AA-550308

PM10 and Metals Parameters Site 1 Site 2 Site 3 Site 4Start Date 5/6/19 5/6/19 5/6/19 5/6/19Stop Date 5/7/19 5/7/19 5/7/19 5/7/19Start Time 0:00 0:00 0:00 0:00Stop Time 0:00 0:00 0:00 0:00

Description 39th & Franklin 39th & Gilpin 39th & Williams 39th & HighLatitude 39.771253 39.771274 39.771225 39.771278Longitude -104.968309 -104.967258 -104.965847 -104.964645

Actual Total M3 (acm) 24.055 24.054 24.047 24.044Average Temperature (°C) 14.1 14.3 14.7 14.8Average Pressure (mmHg) 632 630 630 629Standard Total M3 (scm) 20.8 20.7 20.6 20.6

Filter ID P2954989 P2954990 P2954991 P2954992Filter Tare Weight (g) 0.392966 0.392421 0.388501 0.388760Filter Final Weight (g) 0.393721 0.393174 0.389410 0.389944Filter Weight Gain (g) 0.000754 0.000753 0.000909 0.001183

Arsenic Collected (ng) <50 <50 <50 <50Chromium Collected (ng) 90 60 50 70Lead Collected (ng) 90 70 <50 130

PM10 ResultsPM10 Concentration (µg/scm) 36.4 36.4 44.1 57.5

Arsenic Concentration (µg/scm) <0.00241 <0.00242 <0.00242 <0.00243Chromium Concentration (µg/scm) 0.00434 0.00290 0.00242 0.00340Lead Concentration (µg/scm) 0.00434 0.00339 <0.00242 0.00631

Notes and ObservationsNone

Laboratory Data

IML Air Science

Network:

Tare Exposed Maximum ExposedSample Analysis Analysis Transportation Tare Gross Net

ID Date Date Temperature (°C) (mg) (mg) (mg) Exposed CommentsP2954989 04/08/19 06/19/19 0.0 392.9661 393.7205 0.7544P2954990 04/08/19 06/19/19 0.0 392.4213 393.1743 0.7530P2954991 04/08/19 06/19/19 0.0 388.5005 389.4097 0.9092P2954992 04/08/19 06/19/19 0.0 388.7603 389.9436 1.1833P2955361 04/22/19 06/19/19 0.0 395.2101 395.4274 0.2173P2955362 04/22/19 06/19/19 0.0 405.8897 406.1470 0.2573P2955363 04/22/19 06/19/19 0.0 402.6006 402.6607 0.0601P2955364 04/22/19 06/19/19 0.0 406.8965 407.1391 0.2426P2955365 04/22/19 06/19/19 0.0 404.7447 405.0339 0.2892P2955366 04/22/19 06/19/19 0.0 405.9532 406.2301 0.2769P2955367 04/22/19 06/19/19 0.0 403.8587 404.1284 0.2697P2955368 04/22/19 06/19/19 0.0 402.4544 402.6241 0.1697P2955369 04/22/19 06/19/19 0.0 398.5510 398.8445 0.2935P2955370 04/22/19 06/19/19 0.0 399.0991 399.4333 0.3342P2955566 05/06/19 06/19/19 0.0 385.4130 385.7778 0.3648P2955567 05/06/19 06/19/19 0.0 399.7753 400.0405 0.2652P2955568 05/06/19 06/19/19 0.0 400.5643 400.8884 0.3241P2955569 05/06/19 06/19/19 0.0 398.4338 398.7613 0.3275P2955570 05/06/19 06/19/19 0.0 394.7157 395.1491 0.4334P2955571 05/06/19 06/19/19 0.0 402.4024 402.8732 0.4708P2955572 05/06/19 06/19/19 0.0 394.8099 394.8183 0.0084P2955836 05/20/19 06/19/19 0.0 394.4973 394.5005 0.0032

39th Ave

Mass

Particulate Matter Gravimetric Analysis Results

Montrose Air Quality Services

Reported 06/20/2019 555 Absaraka St, Sheridan, WY 82801

6/27/2019Date:

1673 Terra Avenue, Sheridan, Wyoming 82801 ph: (307) 672-8945Inter-Mountain Labs

Your Environmental Monitoring Partner

Project: 39th AveCLIENT: Montrose Air Quality Services

Lab Order: S1906348

CASE NARRATIVE

Report ID: S1906348001

Samples 33 Site #1 P2954989, 34 Site #2 P2954990, 35 Site #3 P2954991 and 39 Site #4 P2954992 were received on June 14, 2019.

All samples were received and analyzed within the EPA recommended holding times, except those noted below in this case narrative. Samples were analyzed using the methods outlined in the following references:

"Standard Methods For The Examination of Water and Wastewater", approved method versionsTest Methods for Evaluating Solid Waste, Physical/Chemical Methods, SW-846, 3rd Edition40 CFR Parts 136 and 14140 CFR Part 50, Appendices B, J, L, and OMethods indicated in the Methods Update Rule published in the Federal Register Friday, May 18, 2012ASTM approved and recognized standards

All Quality Control parameters met the acceptance criteria defined by EPA and Inter-Mountain Laboratories except as indicated in this case narrative.

Page 1 of 1John Jacobs, Project Manager

Reviewed by:

Project: 39th Ave

Client Sample ID: 33 Site #1 P2954989

Collection Date: 5/6/2019

Matrix: Filter

Analyses Result Qual Units Date Analyzed/InitRL

CLIENT: Montrose Air Quality Services

Work Order: S1906348

Lab ID: S1906348-001

Date Reported:

Sample Analysis Report


Method

Date Received: 6/14/2019 9:00:00 AMSampler: AH


6/27/2019


COC: 181731

990 43rd AveDenver, CO 80211

FieldActual Volume 05/06/2019 0000 m³24.055 Field

IO-3.5 Teflon FiltersArsenic 06/25/2019 001150 ng/filterND MS IO-3.5

Chromium 06/25/2019 001150 ng/filter90 MS IO-3.5

Lead 06/25/2019 001150 ng/filter90 MS IO-3.5

Filter Metals ConcentrationArsenic 06/27/2019 13420.00208 µg/m³ND JJ Calculation

Chromium 06/27/2019 13420.00208 µg/m³0.00371 JJ Calculation

Lead 06/27/2019 13420.00208 µg/m³0.00384 JJ Calculation

Qualifiers:


Reviewed by:

These results apply only to the samples tested. RL - Reporting LimitB Analyte detected in the associated Method Blank C Calculated ValueE Value above quantitation range G Analyzed at IML Gillette laboratoryH Holding times for preparation or analysis exceeded J Analyte detected below quantitation limitsL Analyzed by another laboratory M Value exceeds Monthly Ave or MCL or is less than LCL

ND Not Detected at the Reporting Limit O Outside the Range of DilutionsS Spike Recovery outside accepted recovery limits U Analysis reported under the reporting limitX Matrix Effect

Project: 39th Ave



Matrix: Filter




Lab ID: S1906348-002

Date Reported:



Method



6/27/2019


COC: 181731









Qualifiers:


Reviewed by:



Project: 39th Ave



Matrix: Filter




Lab ID: S1906348-003

Date Reported:



Method



6/27/2019


COC: 181731





Lead 06/25/2019 003550 ng/filterND MS IO-3.5



Lead 06/27/2019 13420.00208 µg/m³ND JJ Calculation

Qualifiers:


Reviewed by:



Project: 39th Ave



Matrix: Filter




Lab ID: S1906348-004

Date Reported:



Method



6/27/2019


COC: 181731









Qualifiers:


Reviewed by:



Calibration and QA/QC Data

IML Air Science

ExposureBlank Analysis Tare Gross Net

ID Date (mg) (mg) (mg)3024752 06/19/19 402.4756 402.4797 0.00413024860 06/19/19 401.1078 401.1084 0.0006

Micro-Gravimetric Lab Blank Analysis Results


May 10, 2019 - June 19, 2019

Mass


IML Air Science

Filter Analysis Analysis Original Replicate NetID Type Date (mg) (mg) (mg)

P2954992 Tare 04/08/19 388.7603 388.7563 -0.0040P2954991 Tare 04/08/19 388.5005 388.4977 -0.0028P2955571 Tare 05/06/19 402.4024 402.4005 -0.0019P2955372 Tare 04/22/19 404.6172 404.6115 -0.0057P2954992 Gross 06/19/19 389.9436 389.9427 -0.0009P2955570 Gross 06/19/19 395.1491 395.1488 -0.0003P2955371 Gross 06/19/19 405.0668 405.0609 -0.0059

Micro-Gravimetric Replicate Analysis Results


May 10, 2019 - June 19, 2019

Mass


IML Air Science

Tare GrossFilter Equilibration Equilibration

ID (hh:mm) (hh:mm)P2955361 88:35 28:06P2955362 88:35 28:07P2955370 88:40 28:14P2955371 88:42 28:20P2955836 64:51 28:19P2954991 66:11 28:04P2954992 66:12 28:05P2954995 66:14 28:20P2955363 88:36 28:07P2955368 88:39 28:12P2955369 88:40 28:13P2955569 67:42 28:16P2955364 88:37 28:08P2955366 88:38 28:10P2955367 88:39 28:11P2955566 67:41 28:14P2955568 67:42 28:15P2955571 67:43 28:18P2955578 67:47 28:21P2954989 66:10 28:03P2954990 66:10 28:04P2955365 88:37 28:10P2955372 88:42 28:21P2955567 67:41 28:15P2955570 67:43 28:17P2955572 67:44 28:18P2955579 67:48 28:22

Micro-Gravimetric Equilibration Times


May 10, 2019 - June 19, 2019


IML Air Science

SampleID Site LabIDTare Equilibration DateTime (MST)

Tare Analysis DateTime (MST)

Tare Mean 24hr. Temp

(°C)

Tare Standard

Deviation of Temp

Tare Mean 24 hr. Relative Humidity

(%)Tare Standard

Deviation of RHDate Received Exposed (MST)

Exposed Equilibration Time

(MST)Exposed Analysis

Time (MST)

Exposed Mean 24hr. Temp (°C)

Exposed Standard

Deviation of Temp

Exposed Mean 24hr.

Relative Humidity (%)

Exposed Standard

Deviation of RH

Tare & Exposed

Temp Difference

Tare & Exposed Humidity

Difference

Receipt Temp Upon Arrival (°C)

Tare Mass (mg)

Exposed Mass (mg)

Net Mass (mg) Comments

P2954989 39th Ave 2 04/05/2019 13:43 04/08/2019 07:53 21.3 0.1 35.2 0.2 06/14/2019 06/18/2019 06:32 06/19/2019 10:35 21.4 0.1 35.5 0.2 -0.1 -0.3 0 392.9661 393.7205 0.7544P2954990 39th Ave 2 04/05/2019 13:43 04/08/2019 07:53 21.3 0.1 35.2 0.2 06/14/2019 06/18/2019 06:32 06/19/2019 10:36 21.4 0.1 35.5 0.2 -0.1 -0.3 0 392.4213 393.1743 0.7530P2954991 39th Ave 2 04/05/2019 13:43 04/08/2019 07:54 21.3 0.1 35.2 0.2 06/14/2019 06/18/2019 06:32 06/19/2019 10:36 21.4 0.1 35.5 0.2 -0.1 -0.3 0 388.5005 389.4097 0.9092P2954992 39th Ave 2 04/05/2019 13:43 04/08/2019 07:55 21.3 0.1 35.2 0.2 06/14/2019 06/18/2019 06:32 06/19/2019 10:37 21.4 0.1 35.5 0.2 -0.1 -0.3 0 388.7603 389.9436 1.1833P2955361 39th Ave 2 04/18/2019 14:31 04/22/2019 07:06 21.3 0.1 35.3 0.2 06/14/2019 06/18/2019 06:32 06/19/2019 10:38 21.4 0.1 35.5 0.2 -0.1 -0.2 0 395.2101 395.4274 0.2173P2955362 39th Ave 2 04/18/2019 14:31 04/22/2019 07:06 21.3 0.1 35.3 0.2 06/14/2019 06/18/2019 06:32 06/19/2019 10:39 21.4 0.1 35.5 0.2 -0.1 -0.2 0 405.8897 406.1470 0.2573P2955363 39th Ave 2 04/18/2019 14:31 04/22/2019 07:07 21.3 0.1 35.3 0.2 06/14/2019 06/18/2019 06:32 06/19/2019 10:39 21.4 0.1 35.5 0.2 -0.1 -0.2 0 402.6006 402.6607 0.0601P2955364 39th Ave 2 04/18/2019 14:31 04/22/2019 07:08 21.3 0.1 35.3 0.2 06/14/2019 06/18/2019 06:32 06/19/2019 10:40 21.4 0.1 35.5 0.2 -0.1 -0.2 0 406.8965 407.1391 0.2426P2955365 39th Ave 2 04/18/2019 14:31 04/22/2019 07:08 21.3 0.1 35.3 0.2 06/14/2019 06/18/2019 06:32 06/19/2019 10:42 21.4 0.1 35.5 0.2 -0.1 -0.2 0 404.7447 405.0339 0.2892P2955366 39th Ave 2 04/18/2019 14:31 04/22/2019 07:09 21.3 0.1 35.3 0.2 06/14/2019 06/18/2019 06:32 06/19/2019 10:42 21.4 0.1 35.5 0.2 -0.1 -0.2 0 405.9532 406.2301 0.2769P2955367 39th Ave 2 04/18/2019 14:31 04/22/2019 07:10 21.3 0.1 35.3 0.2 06/14/2019 06/18/2019 06:32 06/19/2019 10:43 21.4 0.1 35.5 0.2 -0.1 -0.2 0 403.8587 404.1284 0.2697P2955368 39th Ave 2 04/18/2019 14:31 04/22/2019 07:10 21.3 0.1 35.3 0.2 06/14/2019 06/18/2019 06:32 06/19/2019 10:44 21.4 0.1 35.5 0.2 -0.1 -0.2 0 402.4544 402.6241 0.1697P2955369 39th Ave 2 04/18/2019 14:31 04/22/2019 07:11 21.3 0.1 35.3 0.2 06/14/2019 06/18/2019 06:32 06/19/2019 10:45 21.4 0.1 35.5 0.2 -0.1 -0.2 0 398.5510 398.8445 0.2935P2955370 39th Ave 2 04/18/2019 14:31 04/22/2019 07:11 21.3 0.1 35.3 0.2 06/14/2019 06/18/2019 06:32 06/19/2019 10:46 21.4 0.1 35.5 0.2 -0.1 -0.2 0 399.0991 399.4333 0.3342P2955566 39th Ave 2 05/03/2019 13:45 05/06/2019 09:26 21.3 0.1 35.2 0.2 06/14/2019 06/18/2019 06:32 06/19/2019 10:46 21.4 0.1 35.5 0.2 -0.1 -0.3 0 385.4130 385.7778 0.3648P2955567 39th Ave 2 05/03/2019 13:45 05/06/2019 09:26 21.3 0.1 35.2 0.2 06/14/2019 06/18/2019 06:32 06/19/2019 10:47 21.4 0.1 35.5 0.2 -0.1 -0.3 0 399.7753 400.0405 0.2652P2955568 39th Ave 2 05/03/2019 13:45 05/06/2019 09:27 21.3 0.1 35.2 0.2 06/14/2019 06/18/2019 06:32 06/19/2019 10:47 21.4 0.1 35.5 0.2 -0.1 -0.3 0 400.5643 400.5695 0.0052P2955569 39th Ave 2 05/03/2019 13:45 05/06/2019 09:27 21.3 0.1 35.2 0.2 06/14/2019 06/18/2019 06:32 06/19/2019 10:48 21.4 0.1 35.5 0.2 -0.1 -0.3 0 398.4338 398.7613 0.3275P2955570 39th Ave 2 05/03/2019 13:45 05/06/2019 09:28 21.3 0.1 35.2 0.2 06/14/2019 06/18/2019 06:32 06/19/2019 10:49 21.4 0.1 35.5 0.2 -0.1 -0.3 0 394.7157 395.1491 0.4334P2955571 39th Ave 2 05/03/2019 13:45 05/06/2019 09:28 21.3 0.1 35.2 0.2 06/14/2019 06/18/2019 06:32 06/19/2019 10:50 21.4 0.1 35.5 0.2 -0.1 -0.3 0 402.4024 402.8732 0.4708P2955572 39th Ave 2 05/03/2019 13:45 05/06/2019 09:29 21.3 0.1 35.2 0.2 06/14/2019 06/18/2019 06:32 06/19/2019 10:50 21.4 0.1 35.5 0.2 -0.1 -0.3 0 394.8099 394.8183 0.0084P2955836 39th Ave 2 05/17/2019 13:19 05/20/2019 06:10 21.3 0.1 35.6 0.2 06/14/2019 06/18/2019 06:32 06/19/2019 10:51 21.4 0.1 35.5 0.2 -0.1 0.1 0 394.4973 394.5005 0.0032P2954995 Sanderson Gulch 2 04/05/2019 13:43 04/08/2019 07:57 21.3 0.1 35.2 0.2 06/14/2019 06/18/2019 06:32 06/19/2019 10:52 21.4 0.1 35.5 0.2 -0.1 -0.3 0 388.4645 391.1093 2.6448P2955371 Sanderson Gulch 2 04/18/2019 14:31 04/22/2019 07:13 21.3 0.1 35.3 0.2 06/14/2019 06/18/2019 06:32 06/19/2019 10:52 21.4 0.1 35.5 0.2 -0.1 -0.2 0 402.5680 405.0668 2.4988P2955372 Sanderson Gulch 2 04/18/2019 14:31 04/22/2019 07:13 21.3 0.1 35.3 0.2 06/14/2019 06/18/2019 06:32 06/19/2019 10:53 21.4 0.1 35.5 0.2 -0.1 -0.2 0 404.6172 410.7430 6.1258P2955578 Sanderson Gulch 2 05/03/2019 13:45 05/06/2019 09:32 21.3 0.1 35.2 0.2 06/14/2019 06/18/2019 06:32 06/19/2019 10:53 21.4 0.1 35.5 0.2 -0.1 -0.3 0 394.6885 396.6112 1.9227P2955579 Sanderson Gulch 2 05/03/2019 13:45 05/06/2019 09:33 21.3 0.1 35.2 0.2 06/14/2019 06/18/2019 06:32 06/19/2019 10:54 21.4 0.1 35.5 0.2 -0.1 -0.3 0 397.5826 397.5863 0.00373024752 Lab Blank 2 04/18/2019 14:31 04/22/2019 07:14 21.3 0.1 35.3 0.2 06/18/2019 06:32 06/19/2019 10:34 21.4 0.1 35.5 0.2 -0.1 -0.2 402.4756 402.4797 0.00413024860 Lab Blank 2 05/03/2019 13:45 05/06/2019 09:34 21.3 0.1 35.2 0.2 06/18/2019 06:32 06/19/2019 10:34 21.4 0.1 35.5 0.2 -0.1 -0.3 401.1078 401.1084 0.0006


Site # 1 2 3 4Date 5/7/2019 5/7/2019 5/7/2019 5/7/2019Time 9:45 9:40 9:50 10:00

Sampler: 16.73 16.70 16.74 16.70DeltaCal®: 16.71 16.68 16.69 16.71

% Difference: 0.12 0.12 0.30 0.06Allowed % Diff.: 4% 4% 4% 4%

Pass X X X XFail

Sampler: 19.5 18.6 18.5 18.5DeltaCal®: 18.7 18.8 19 19.2

Difference (C): 0.8 0.2 0.5 0.7Allowed Diff. (C): 2 2 2 2

Pass X X X XFail

Sampler: 630 635 633 631DeltaCal®: 628 632 631 630

Difference (mmHg): 2 3 2 1Allowed Diff. (mmHg): 10 10 10 10

Pass X X X XFail

Ambient Temp. (C)

Flow Rate (LPM)

% diff. = [(deltaCal®-sampler)/deltaCal®]x100

PQ100 Ambient Air Particulate Sampler QA/QC

deltaCal® S/N:152905

Barometric Pressure (mmHg)

Sampling Data

Sampling Pictures

Location: Site 1 GPS Coordinate: Lat: 39.771253 Long: -104.968309

Report on the 39th Ave Greenway and Open Channel (39th ......Report on the 39th Ave Greenway and...

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