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

Transcription

1 Report on the 39 th Ave Greenway and Open Channel (39 th Ave) PM10 and Metals Ambient Air Study Conducted for the City and County of Denver, Department of Environmental Health Montrose Project No. 043AS Report ID: 043AS November 2018 December 12, 2018

2 City and County of Denver Report ID: 043AS November 2018 Page 1 Table of Contents PROJECT OVERVIEW... 2 Objectives... 2 Project Scope... 2 Contact Information th Ave Site Description... 3 Methodology... 3 Discussion of Results... 4 SUMMARY OF RESULTS... 5 Table 1 Summary of Ambient PM 10 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

3 City and County of Denver Report ID: 043AS November 2018 Page 2 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 10 microns 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/m 3 Lead OSHA 8 Hour 50 ug/m 3 Chromium (VI) OSHA 8 Hour 5 ug/m 3 PM Total OSHA 8 Hour 10,000 ug/m 3 PM Respirable OSHA 8 Hour 5,000 ug/m 3 Lead Ambient NAAQS Rolling Three Month 0.15 ug/m 3 PM 10 Ambient NAAQS 24 Hour 150 ug/m 3 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:

4 City and County of Denver Report ID: 043AS November 2018 Page 3 Michael Ogletree City and County of Denver 200 W 14th Ave 990 West 43 rd Ave Denver, CO Denver, CO Patrick Clark, PE, QSTI Montrose Air Quality Services, LLC Phone: (720) Phone: (303) Michael.Ogletree@denvergov.org pclark@airtechenv.com Andrew Ross Mary Hininger City and County of Denver IML Air Science 200 W 14th Ave 555 Absaraka Street Denver, CO Sheridan, WY Phone: (720) Phone: (307) Andrew.Ross@denvergov.org mhininger@imlinc.com 39 th 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).

5 City and County of Denver Report ID: 043AS November 2018 Page 4 Discussion of Results The PM10 and metals results of all November 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 November samples were collected during 39 th 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 11/19/18 were analyzed for arsenic, lead, and total chromium. Prepared by: Reviewed by: Austin Heitmann Patrick Clark, PE

6 City and County of Denver Report ID: 043AS November 2018 Page 5 Summary of Results Table 1 Summary of Ambient PM10 Data Site Information Site 1 Site 2 Site 3 Site 4 Limit Description 39 th & Franklin 39 th & Gilpin 39 th & Williams 39 th & High Latitude Longitude PM 10 Results 11/1/18 (ug/scm 1 ) /7/18 (ug/scm 1 ) /13/18 (ug/scm 1 ) /19/18 (ug/scm 1 ) /25/18 (ug/scm 1 ) Notes and Observations No sampling anomalies were observed 1 Micrograms per standard cubic meter

7 City and County of Denver Report ID: 043AS November 2018 Page 6 Table 2 Summary of Metals Data Site Information Site 1 Site 2 Site 3 Site 4 Limit Description 39 th & Franklin 39 th & Gilpin 39 th & Williams 39 th & High Latitude Longitude Metals Results Arsenic 11/19/18 (µg/scm 2 ) < < < < Chromium 11/19/18 (µg/scm 2 ) Lead 11/19/18 (µg/scm 2 ) Notes and Observations No sampling anomalies were observed 2 Micrograms per standard cubic meter

8 City and County of Denver Report ID: 043AS November 2018 Page 7 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.

9 City and County of Denver Report ID: 043AS November 2018 Page 8 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 20 o C and 23 o C. The RH and temperature data was logged for 24 hours prior to and during weighing. The filters were weighed to the nearest gram (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 field blanks were handled and analyzed in the same manner as the regular sampled filters. The Mass Flow Sensors measurement of flow through each analyzer was checked at the start of the program and will be checked again after every five (5) sampling events. The verification flow rate must compare within four (4) percent of the Mass Flow Sensors or the sensor must be calibrated and/or repaired.

10 Appendix Meteorological Data

11 City and County of Denver Meteorological Data - I-25 Globeville Project No Hour RD RH RS TEMP WD WS (MST) deg Percent mph degf deg mph 1:00 AM :00 AM :00 AM :00 AM :00 AM :00 AM :00 AM :00 AM :00 AM :00 AM :00 AM :00 PM :00 PM :00 PM :00 PM :00 PM :00 PM :00 PM :00 PM :00 PM :00 PM :00 PM :00 PM :00 AM

12 City and County of Denver Meteorological Data - I-25 Globeville Project No Hour RD RH RS TEMP WD WS (MST) deg Percent mph degf deg mph 1:00 AM :00 AM :00 AM :00 AM :00 AM :00 AM :00 AM :00 AM :00 AM :00 AM :00 AM :00 PM :00 PM :00 PM :00 PM :00 PM :00 PM :00 PM :00 PM :00 PM :00 PM :00 PM :00 PM :00 AM

13 City and County of Denver Meteorological Data - I-25 Globeville Project No Hour RD RH RS TEMP WD WS (MST) deg Percent mph degf deg mph 1:00 AM :00 AM :00 AM :00 AM :00 AM :00 AM :00 AM :00 AM :00 AM :00 AM :00 AM :00 PM :00 PM :00 PM :00 PM :00 PM :00 PM :00 PM :00 PM :00 PM :00 PM :00 PM :00 PM :00 AM

14 City and County of Denver Meteorological Data - I-25 Globeville Project No Hour RD RH RS TEMP WD WS (MST) deg Percent mph degf deg mph 1:00 AM :00 AM :00 AM :00 AM :00 AM :00 AM :00 AM :00 AM :00 AM :00 AM :00 AM :00 PM :00 PM :00 PM :00 PM :00 PM :00 PM :00 PM :00 PM :00 PM :00 PM :00 PM :00 PM :00 AM

15 City and County of Denver Meteorological Data - I-25 Globeville Project No Hour RD RH RS TEMP WD WS (MST) deg Percent mph degf deg mph 1:00 AM :00 AM :00 AM :00 AM :00 AM :00 AM :00 AM :00 AM :00 AM :00 AM :00 AM :00 PM :00 PM :00 PM :00 PM :00 PM :00 PM :00 PM :00 PM :00 PM :00 PM :00 PM :00 PM :00 AM

16 Sample Calculations

17 Sample Calculations for Site 1 on 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)(V m)(p b) (T m + 273) Vm(std) = (0.3921)(24.049)(631) Vm(std) = 21.3 scm ( ) where: Vm(std) = volume of air collected at standard conditions (scm) Vm = volume of air sampled at meter conditions (m 3 ) Pb = barometric pressure (mm Hg) Tm = average air temperature ( o C) = ratio of standard temperature over standard pressure ( o K/mm Hg) 273 = conversion ( o C to o K) PM10 Concentration, ug/scm C = (M)(1,000,000) Vm(std) C = ( )(1,000,000) 21.3 C = 13.3ug/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)

18 Sampling Parameters

19 City and County of Denver PM 10 Sampling Parameters Airtech Project No PM 10 and Metals Parameters Site 1 Site 2 Site 3 Site 4 Start Date 11/1/18 11/1/18 11/1/18 11/1/18 Stop Date 11/2/18 11/2/18 11/2/18 11/2/18 Start Time 0:00 0:00 0:00 0:00 Stop Time 0:00 0:00 0:00 0:00 Description 39 th & Franklin 39 th & Gilpin 39 th & Williams 39 th & High Latitude Longitude Actual Total M 3 (acm) Average Temperature ( C) Average Pressure (mmhg) Standard Total M 3 (scm) Filter ID P P P P Filter Tare Weight (g) Filter Final Weight (g) Filter Weight Gain (g) PM 10 Results PM 10 Concentration (mg/scm) Notes and Observations None

20 City and County of Denver PM 10 Sampling Parameters Airtech Project No PM 10 and Metals Parameters Site 1 Site 2 Site 3 Site 4 Start Date 11/7/18 11/7/18 11/7/18 11/7/18 Stop Date 11/8/18 11/8/18 11/8/18 11/8/18 Start Time 0:00 0:00 0:00 0:00 Stop Time 8:00 0:00 0:00 0:00 Description 39 th & Franklin 39 th & Gilpin 39 th & Williams 39 th & High Latitude Longitude Actual Total M 3 (acm) Average Temperature ( C) Average Pressure (mmhg) Standard Total M 3 (scm) Filter ID P P P P Filter Tare Weight (g) Filter Final Weight (g) Filter Weight Gain (g) PM 10 Results PM 10 Concentration (mg/scm) Notes and Observations None

21 City and County of Denver PM 10 Sampling Parameters Airtech Project No PM 10 and Metals Parameters Site 1 Site 2 Site 3 Site 4 Start Date 11/13/18 11/13/18 11/13/18 11/13/18 Stop Date 11/14/18 11/14/18 11/14/18 11/14/18 Start Time 0:00 0:00 0:00 0:00 Stop Time 0:00 0:00 0:00 0:00 Description 39 th & Franklin 39 th & Gilpin 39 th & Williams 39 th & High Latitude Longitude Actual Total M 3 (acm) Average Temperature ( C) Average Pressure (mmhg) Standard Total M 3 (scm) Filter ID P P P P Filter Tare Weight (g) Filter Final Weight (g) Filter Weight Gain (g) PM 10 Results PM 10 Concentration (mg/scm) Notes and Observations None

22 City and County of Denver PM 10 Sampling Parameters Airtech Project No PM 10 and Metals Parameters Site 1 Site 2 Site 3 Site 4 Start Date 11/19/18 11/19/18 11/19/18 11/19/18 Stop Date 11/20/18 11/20/18 11/20/18 11/20/18 Start Time 0:00 0:00 0:00 0:00 Stop Time 0:00 0:00 0:00 0:00 Description 39 th & Franklin 39 th & Gilpin 39 th & Williams 39 th & High Latitude Longitude Actual Total M 3 (acm) Average Temperature ( C) Average Pressure (mmhg) Standard Total M 3 (scm) Filter ID P P P P Filter Tare Weight (g) Filter Final Weight (g) Filter Weight Gain (g) Arsenic Collected (ng) <50 <50 <50 <50 Chromium Collected (ng) < Lead Collected (ng) PM 10 Results PM 10 Concentration (mg/scm) Arsenic Concentration (mg/scm) < < < < Chromium Concentration (mg/scm) < Lead Concentration (mg/scm) Notes and Observations None

23 City and County of Denver PM 10 Sampling Parameters Airtech Project No PM 10 and Metals Parameters Site 1 Site 2 Site 3 Site 4 Start Date 11/25/18 11/25/18 11/25/18 11/25/18 Stop Date 11/26/18 11/26/18 11/26/18 11/26/18 Start Time 0:00 0:00 0:00 0:00 Stop Time 0:00 0:00 0:00 0:00 Description 39 th & Franklin 39 th & Gilpin 39 th & Williams 39 th & High Latitude Longitude Actual Total M 3 (acm) Average Temperature ( C) Average Pressure (mmhg) Standard Total M 3 (scm) Filter ID P P P P Filter Tare Weight (g) Filter Final Weight (g) Filter Weight Gain (g) PM 10 Results PM 10 Concentration (mg/scm) Notes and Observations None

24 Laboratory Data

25 IML Air Science Particulate Matter Gravimetric Analysis Results 39th Ave Network: Montrose Air Quality Services Tare Exposed Maximum Exposed Mass Sample Analysis Analysis Transportation Tare Gross Net ID Date Date Temperature ( C) (mg) (mg) (mg) Exposed Comments P /22/18 11/30/ P /22/18 11/30/ P /22/18 11/30/ P /22/18 11/30/ P /22/18 11/30/ P /22/18 11/30/ P /22/18 11/30/ P /22/18 11/30/ P /22/18 11/30/ P /22/18 11/30/ P /22/18 11/30/ P /22/18 11/30/ P /05/18 11/30/ P /05/18 11/30/ P /05/18 11/30/ P /05/18 11/30/ P /05/18 11/30/ P /05/18 11/30/ P /05/18 11/30/ P /05/18 11/30/ P /05/18 11/30/ P /19/18 11/30/

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28 Inter-Mountain Labs 1673 Terra Avenue, Sheridan, Wyoming ph: (307) Your Environmental Monitoring Partner Date: 12/11/2018 CLIENT: Montrose Air Quality Services Project: Lab Order: S CASE NARRATIVE Report ID: S Samples 40 Site #1 P , 41 Site #2 P , 44 Site #3 P and 45 Site #4 P were received on November 29, 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 versions Test Methods for Evaluating Solid Waste, Physical/Chemical Methods, SW-846, 3rd Edition 40 CFR Parts 136 and CFR Part 50, Appendices B, J, L, and O Methods indicated in the Methods Update Rule published in the Federal Register Friday, May 18, 2012 ASTM 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. Reviewed by: John Jacobs, Project Manager Page 1 of 1

29 Inter-Mountain Labs 1673 Terra Avenue, Sheridan, Wyoming ph: (307) Sample Analysis Report Your Environmental Monitoring Partner CLIENT: Montrose Air Quality Services rd Ave Denver, CO Project: Lab ID: S Client Sample ID: 40 Site #1 P Date Reported: 12/11/2018 Report ID: S Work Order: S Collection Date: 11/19/2018 Date Received: 11/29/2018 9:50:00 AM Sampler: AH Matrix: Filter COC: Analyses Result RL Qual Units Date Analyzed/Init Method Field Actual Volume m³ 11/19/ Field IO-3.5 Teflon Filters Arsenic ND 50 ng/filter 12/10/ MS IO-3.5 Chromium ND 50 ng/filter 12/10/ MS IO-3.5 Lead ng/filter 12/10/ MS IO-3.5 Filter Metals Concentration Arsenic ND µg/m³ 12/11/ JJ Calculation Chromium ND µg/m³ 12/11/ JJ Calculation Lead µg/m³ 12/11/ JJ Calculation These results apply only to the samples tested. Qualifiers: RL - Reporting Limit B Analyte detected in the associated Method Blank C Calculated Value E Value above quantitation range G Analyzed at IML Gillette laboratory H Holding times for preparation or analysis exceeded J Analyte detected below quantitation limits L 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 Dilutions S Spike Recovery outside accepted recovery limits U Analysis reported under the reporting limit X Matrix Effect Reviewed by: John Jacobs, Project Manager Page 1 of 4

30 Inter-Mountain Labs 1673 Terra Avenue, Sheridan, Wyoming ph: (307) Sample Analysis Report Your Environmental Monitoring Partner CLIENT: Montrose Air Quality Services rd Ave Denver, CO Project: Lab ID: S Client Sample ID: 41 Site #2 P Date Reported: 12/11/2018 Report ID: S Work Order: S Collection Date: 11/19/2018 Date Received: 11/29/2018 9:50:00 AM Sampler: AH Matrix: Filter COC: Analyses Result RL Qual Units Date Analyzed/Init Method Field Actual Volume m³ 11/19/ Field IO-3.5 Teflon Filters Arsenic ND 50 ng/filter 12/10/ MS IO-3.5 Chromium ng/filter 12/10/ MS IO-3.5 Lead ng/filter 12/10/ MS IO-3.5 Filter Metals Concentration Arsenic ND µg/m³ 12/11/ JJ Calculation Chromium µg/m³ 12/11/ JJ Calculation Lead µg/m³ 12/11/ JJ Calculation These results apply only to the samples tested. Qualifiers: RL - Reporting Limit B Analyte detected in the associated Method Blank C Calculated Value E Value above quantitation range G Analyzed at IML Gillette laboratory H Holding times for preparation or analysis exceeded J Analyte detected below quantitation limits L 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 Dilutions S Spike Recovery outside accepted recovery limits U Analysis reported under the reporting limit X Matrix Effect Reviewed by: John Jacobs, Project Manager Page 2 of 4

31 Inter-Mountain Labs 1673 Terra Avenue, Sheridan, Wyoming ph: (307) Sample Analysis Report Your Environmental Monitoring Partner CLIENT: Montrose Air Quality Services rd Ave Denver, CO Project: Lab ID: S Client Sample ID: 44 Site #3 P Date Reported: 12/11/2018 Report ID: S Work Order: S Collection Date: 11/19/2018 Date Received: 11/29/2018 9:50:00 AM Sampler: AH Matrix: Filter COC: Analyses Result RL Qual Units Date Analyzed/Init Method Field Actual Volume m³ 11/19/ Field IO-3.5 Teflon Filters Arsenic ND 50 ng/filter 12/10/ MS IO-3.5 Chromium ng/filter 12/10/ MS IO-3.5 Lead ng/filter 12/10/ MS IO-3.5 Filter Metals Concentration Arsenic ND µg/m³ 12/11/ JJ Calculation Chromium µg/m³ 12/11/ JJ Calculation Lead µg/m³ 12/11/ JJ Calculation These results apply only to the samples tested. Qualifiers: RL - Reporting Limit B Analyte detected in the associated Method Blank C Calculated Value E Value above quantitation range G Analyzed at IML Gillette laboratory H Holding times for preparation or analysis exceeded J Analyte detected below quantitation limits L 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 Dilutions S Spike Recovery outside accepted recovery limits U Analysis reported under the reporting limit X Matrix Effect Reviewed by: John Jacobs, Project Manager Page 3 of 4

32 Inter-Mountain Labs 1673 Terra Avenue, Sheridan, Wyoming ph: (307) Sample Analysis Report Your Environmental Monitoring Partner CLIENT: Montrose Air Quality Services rd Ave Denver, CO Project: Lab ID: S Client Sample ID: 45 Site #4 P Date Reported: 12/11/2018 Report ID: S Work Order: S Collection Date: 11/19/2018 Date Received: 11/29/2018 9:50:00 AM Sampler: AH Matrix: Filter COC: Analyses Result RL Qual Units Date Analyzed/Init Method Field Actual Volume m³ 11/19/ Field IO-3.5 Teflon Filters Arsenic ND 50 ng/filter 12/10/ MS IO-3.5 Chromium ng/filter 12/10/ MS IO-3.5 Lead ng/filter 12/10/ MS IO-3.5 Filter Metals Concentration Arsenic ND µg/m³ 12/11/ JJ Calculation Chromium µg/m³ 12/11/ JJ Calculation Lead µg/m³ 12/11/ JJ Calculation These results apply only to the samples tested. Qualifiers: RL - Reporting Limit B Analyte detected in the associated Method Blank C Calculated Value E Value above quantitation range G Analyzed at IML Gillette laboratory H Holding times for preparation or analysis exceeded J Analyte detected below quantitation limits L 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 Dilutions S Spike Recovery outside accepted recovery limits U Analysis reported under the reporting limit X Matrix Effect Reviewed by: John Jacobs, Project Manager Page 4 of 4

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35 Calibration and QA/QC Data

36 IML Air Science Micro-Gravimetric Lab Blank Analysis Results Montrose Air Quality Services November 14, November 30, 2018 Exposure Mass Blank Analysis Tare Gross Net ID Date (mg) (mg) (mg) /30/ /30/ /30/ /30/

37 IML Air Science Micro-Gravimetric Replicate Analysis Results Montrose Air Quality Services November 14, November 30, 2018 Mass Filter Analysis Analysis Original Replicate Net ID Type Date (mg) (mg) (mg) P Tare 10/22/ P Tare 11/05/ P Gross 11/30/ P Gross 11/30/ P Gross 11/30/ P Gross 11/30/

38 IML Air Science Micro-Gravimetric Equilibration Times Montrose Air Quality Services November 14, November 30, 2018 Tare Gross Filter Equilibration Equilibration ID (hh:mm) (hh:mm) P :04 24:56 P :05 24:58 P :11 25:08 P :51 25:02 P :52 25:04 P :58 25:09 P :07 24:59 P :09 25:00 P :10 25:00 P :50 25:01 P :54 25:06 P :00 24:54 P :00 24:54 P :01 24:55 P :02 24:55 P :03 24:56 P :51 25:02 P :54 25:05 P :59 25:09 P :00 25:11 P :32 25:06 P :05 24:58 P :06 24:59 P :11 25:07 P :50 25:01 P :53 25:04 P :53 25:05

39 SampleID Site LabID Tare 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 RH Date Received Exposed (MST) Exposed Equilibration Time Exposed Analysis (MST) Time (MST) P th Ave 2 10/19/ :50 10/22/ : /29/ /29/ :28 11/30/ : P th Ave 2 10/19/ :50 10/22/ : /29/ /29/ :28 11/30/ : P th Ave 2 10/19/ :50 10/22/ : /29/ /29/ :28 11/30/ : P th Ave 2 10/19/ :50 10/22/ : /29/ /29/ :28 11/30/ : P th Ave 2 10/19/ :50 10/22/ : /29/ /29/ :28 11/30/ : P th Ave 2 10/19/ :50 10/22/ : /29/ /29/ :28 11/30/ : P th Ave 2 10/19/ :50 10/22/ : /29/ /29/ :28 11/30/ : P th Ave 2 10/19/ :50 10/22/ : /29/ /29/ :28 11/30/ : P th Ave 2 10/19/ :50 10/22/ : /29/ /29/ :28 11/30/ : P th Ave 2 10/19/ :50 10/22/ : /29/ /29/ :28 11/30/ : P th Ave 2 10/19/ :50 10/22/ : /29/ /29/ :28 11/30/ : P th Ave 2 10/19/ :50 10/22/ : /29/ /29/ :28 11/30/ : P th Ave 2 11/02/ :48 11/05/ : /29/ /29/ :28 11/30/ : P th Ave 2 11/02/ :48 11/05/ : /29/ /29/ :28 11/30/ : P th Ave 2 11/02/ :48 11/05/ : /29/ /29/ :28 11/30/ : P th Ave 2 11/02/ :48 11/05/ : /29/ /29/ :28 11/30/ : P th Ave 2 11/02/ :48 11/05/ : /29/ /29/ :28 11/30/ : P th Ave 2 11/02/ :48 11/05/ : /29/ /29/ :28 11/30/ : P th Ave 2 11/02/ :48 11/05/ : /29/ /29/ :28 11/30/ : P th Ave 2 11/02/ :48 11/05/ : /29/ /29/ :28 11/30/ : P th Ave 2 11/02/ :48 11/05/ : /29/ /29/ :28 11/30/ : P th Ave 2 11/16/ :25 11/19/ : /29/ /29/ :28 11/30/ : P Sanderson Gulch 2 10/19/ :50 10/22/ : /29/ /29/ :28 11/30/ : P Sanderson Gulch 2 10/19/ :50 10/22/ : /29/ /29/ :28 11/30/ : P Sanderson Gulch 2 11/02/ :48 11/05/ : /29/ /29/ :28 11/30/ : P Sanderson Gulch 2 11/02/ :48 11/05/ : /29/ /29/ :28 11/30/ : P Sanderson Gulch 2 11/02/ :48 11/05/ : /29/ /29/ :28 11/30/ : Lab Blank 2 08/24/ :49 08/27/ : /29/ :28 11/30/ : Lab Blank 2 09/07/ :34 09/10/ : /29/ :28 11/30/ : Lab Blank 2 10/05/ :08 10/08/ : /29/ :28 11/30/ : Lab Blank 2 10/19/ :50 10/22/ : /29/ :28 11/30/ : 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

40 PQ100 Ambient Air Particulate Sampler QA/QC % diff. = [(deltacal -sampler)/deltacal ]x100 Site # Date 11/9/ /9/ /9/ /9/2018 Time 14:15 14:10 14:20 14:30 Flow Rate (LPM) Sampler: DeltaCal : % Difference: Allowed % Diff.: 4% 4% 4% 4% Pass X X X X Fail Ambient Temp. (C) Sampler: DeltaCal : Difference (C): Allowed Diff. (C): Pass X X X X Fail Barometric Pressure (mmhg) Sampler: DeltaCal : Difference (mmhg): Allowed Diff. (mmhg): Pass X X X X Fail deltacal S/N:152905

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62 Sampling Pictures

63 Location: Site 1 GPS Coordinate: Lat: Long:

64 Location: Site 2 GPS Coordinate: Lat: Long:

65 Location: Site 3 GPS Coordinate: Lat: Long:

66 Location: Site 4 GPS Coordinate: Lat: Long: