Carter Carburetor Weekly Air Monitoring & Sampling Report August 17, 2015 - August 23, 2015 Carter Carburetor Daily Weather Conditions Monday 8/17/2015 Tuesday 8/18/2015 Wednesday 8/19/2015 Thursday 8/20/2015 Friday 8/21/2015 Saturday 8/22/2015 Sunday 8/23/2015 Temperature (range)1 94-74 93-71 76-63 84-59 86-64 79-66 82-67 Wind Speed (peak & average)2 6.7/2.8 11.2/4.3 8.9/3.6 8.9/3.0 8.9/3.0 8.9/2.5 8.9/2.9 Wind Direction (predominant) W SW SW SW SW SW SW Precipitation (total)3 0.06 0.45 0.46 0.00 0.00 0.91 Trace Carter Carburetor Daily Work Activities Site Activity Monday 8/17/2015 Tuesday 8/18/2015 Wednesday 8/19/2015 Thursday 8/20/2015 Friday 8/21/2015 Saturday 8/22/2015 Sunday 8/23/2015 Preparation for demolition and excavation X X X X X Floor removal in CBI X X X X X Excavation for soil retention wall X Daily Air Monitoring and Sampling Results Air Monitoring/ Sampling Results - Station 1 (Results reported in |ig/mB) Parameter Type of Analysis Standard / Action Level Monday 8/17/2015 Tuesday 8/18/2015 Wednesday 8/19/2015 Thursday 8/20/2015 Friday 8/21/2015 Saturday 8/22/2015 Sunday 8/23/2015 PMio (24-hour TWA) Real- time 150 ng/m3 (NAAQS) 20.0 17.2 7.9 7.5 Aroclor -1242 (in air sample) Lab 30.7 Hg/m3 (EPA Region 7) Aroclor -1248 (in air sample) Lab 30.7 Hg/m3 (EPA Region 7) Aroclor -1254 (in air sample) Lab 30.7 Hg/m3 (EPA Region 7) Aroclor -1260 (in air sample) Lab 30.7 Hg/m3 (EPA Region 7) Comments Laboratory samples were not collected this week, 8/17/2015 through 8/23/2015. Real-time air monitoring equipment malfunctioned Friday, 8/21/2015, through Sunday, 8/23/2015. 30285579 ------- Carter Carburetor Weekly Air Monitoring & Sampling Report August 17, 2015 - August 23, 2015 Air Monitoring / Sampling Results - Station 2 (Results reported in |ig/mB) Parameter Type of Analysis Standard / Action Level Monday 8/17/2015 Tuesday 8/18/2015 Wednesday 8/19/2015 Thursday 8/20/2015 Friday 8/21/2015 Saturday 8/22/2015 Sunday 8/23/2015 PMio (24-hour TWA) Real- time 150 ng/m3 (NAAQS) 14.3 12.9 5.7 4.3 6.4 9.0 14.9 Aroclor -1242 (in air sample) Lab 30.7 Hg/m3 (EPA Region 7) Aroclor -1248 (in air sample) Lab 30.7 Hg/m3 (EPA Region 7) Aroclor -1254 (in air sample) Lab 30.7 Hg/m3 (EPA Region 7) Aroclor -1260 (in air sample) Lab 30.7 Hg/m3 (EPA Region 7) Comments Laboratory samples were not collected this week, 8/17/2015 through 8/23/2015. Air Monitoring / Sampling Results - Station 3 (Results reported in |ig/mB) Parameter Type of Analysis Standard / Action Level Monday 8/17/2015 Tuesday 8/18/2015 Wednesday 8/19/2015 Thursday 8/20/2015 Friday 8/21/2015 Saturday 8/22/2015 Sunday 8/23/2015 PMio (24-hour TWA) Real- time 150 ng/m3 (NAAQS) 19.6 17.4 6.3 5.8 8.3 10.5 19.3 Aroclor -1242 (in air sample) Lab 30.7 Hg/m3 (EPA Region 7) Aroclor -1248 (in air sample) Lab 30.7 Hg/m3 (EPA Region 7) Aroclor -1254 (in air sample) Lab 30.7 Hg/m3 (EPA Region 7) Aroclor -1260 (in air sample) Lab 30.7 Hg/m3 (EPA Region 7) Comments Laboratory samples were not collected this week, 8/17/2015 through 8/23/2015. ------- Carter Carburetor Weekly Air Monitoring & Sampling Report August 17, 2015 - August 23, 2015 Air Monitoring / Sampling Results - Station 4 (Results reported in |ig/mB) Parameter Type of Analysis Standard / Action Level Monday 8/17/2015 Tuesday 8/18/2015 Wednesday 8/19/2015 Thursday 8/20/2015 Friday 8/21/2015 Saturday 8/22/2015 Sunday 8/23/2015 PMio (24-hour TWA) Real- time 150 ng/m3 (NAAQS) 13.0 11.3 3.1 2.6 4.8 6.6 15.1 Aroclor -1242 (in air sample) Lab 30.7 Hg/m3 (EPA Region 7) Aroclor -1248 (in air sample) Lab 30.7 Hg/m3 (EPA Region 7) Aroclor -1254 (in air sample) Lab 30.7 Hg/m3 (EPA Region 7) Aroclor -1260 (in air sample) Lab 30.7 Hg/m3 (EPA Region 7) Comments Laboratory samples were not collected this week, 8/17/2015 through 8/23/2015. Air Monitoring / Sampling Results - Station 5 (Results reported in |ig/mB) Parameter Type of Analysis Standard / Action Level Monday 8/17/2015 Tuesday 8/18/2015 Wednesday 8/19/2015 Thursday 8/20/2015 Friday 8/21/2015 Saturday 8/22/2015 Sunday 8/23/2015 PMio (24-hour TWA) Real- time 150 ng/m3 (NAAQS) 20.3 18.6 3.6 2.6 5.9 10.1 21.5 Aroclor -1242 (in air sample) Lab 30.7 Hg/m3 (EPA Region 7) Aroclor -1248 (in air sample) Lab 30.7 Hg/m3 (EPA Region 7) Aroclor -1254 (in air sample) Lab 30.7 Hg/m3 (EPA Region 7) Aroclor -1260 (in air sample) Lab 30.7 Hg/m3 (EPA Region 7) Comments Laboratory samples were not collected this week, 8/17/2015 through 8/23/2015. Legend: No shading - indicates TWA readings less than the applicable standard/action level Yellow shading - indicates a 1-hour TWA exceeded the applicable standard/action level, but the 24-hour TWA was below the standard/action level; initiate investigation Red shading - indicates the 24-hour TWA exceeded the applicable standard/action level; initiate corrective action Blue shading - indicates no data are available Aroclor - Monsanto mixture of polychlorinated biphenyl (PCB) congeners NAAQS - National Ambient Air Quality Standard PMio - Particulate matter less than 10 microns in size TWA - Time-weighted average (average of data collected from 12:00 AM to 12:00 AM) iag/m3 - Micrograms per cubic meter 1 Temperature reported in degrees Fahrenheit 2 3 Wind speed reported in miles per hour Precipitation reported in inches ------- Carter Carburetor Weekly Air Monitoring & Sampling Report August 17, 2015 - August 23, 2015 St. Louis City ir Station 5 Air Station 2 Weather Station m Hi Air Station 1 Legend ® Air station location Weatherstation ^ location Missouri Station Site Locator Station o Site Boundary| ------- |