Carter Carburetor Weekly Air Monitoring & Sampling Report August 24, 2015 - August 30, 2015 Carter Carburetor Daily Weather Conditions Monday 8/24/2015 Tuesday 8/25/2015 Wednesday 8/26/2015 Thursday 8/27/2015 Friday 8/28/2015 Saturday 8/29/2015 Sunday 8/30/2015 Temperature (range)1 83-58 81-58 80-59 81-60 85-64 76-70 80-78 Wind Speed (peak & average)2 8.9/2.9 11.2/2.9 8.9/3.2 8.9/2.6 8.9/2.7 4.5/2.2 8.9/3.2 Wind Direction (predominant) SW SW NE NE SW S SW Precipitation (total)3 0.00 0.00 0.00 0.00 0.00 Trace 0.00 Carter Carburetor Daily Work Activities Site Activity Monday 8/24/2015 Tuesday 8/25/2015 Wednesday 8/26/2015 Thursday 8/27/2015 Friday 8/28/2015 Saturday 8/29/2015 Sunday 8/30/2015 Preparation for excavation X X X X X Floor removal in CBI building X X X X Wilco building demolition X X X X 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 8/24/2015 Tuesday 8/25/2015 Wednesday 8/26/2015 Thursday 8/27/2015 Friday 8/28/2015 Saturday 8/29/2015 Sunday 8/30/2015 PMio (24-hour TWA) Real- time 150 ng/m3 (NAAQS) 8.4 10.1 10.6 13.8 18.4 19.9 30.9 Aroclor -1242 (in air sample) Lab 30.7 Hg/m3 (EPA Region 7) ND 0.00746 Aroclor -1248 (in air sample) Lab 30.7 Hg/m3 (EPA Region 7) ND ND Aroclor -1254 (in air sample) Lab 30.7 Hg/m3 (EPA Region 7) ND ND Aroclor -1260 (in air sample) Lab 30.7 Hg/m3 (EPA Region 7) ND ND Comments Laboratory samples collected Monday and Wednesday, 8/24/2015 and 8/26/2015. 30285580 ------- Carter Carburetor Weekly Air Monitoring & Sampling Report August 24, 2015 - August 30, 2015 Air Monitoring / Sampling Results - Station 2 (Results reported in |ig/mB) Parameter Type of Analysis Standard / Action Level Monday 8/24/2015 Tuesday 8/25/2015 Wednesday 8/26/2015 Thursday 8/27/2015 Friday 8/28/2015 Saturday 8/29/2015 Sunday 8/30/2015 PMio (24-hour TWA) Real- time 150 ng/m3 (NAAQS) 2.4 2.4 4.0 8.3 9.4 13.2 22.6 Aroclor -1242 (in air sample) Lab 30.7 Hg/m3 (EPA Region 7) ND ND Aroclor -1248 (in air sample) Lab 30.7 Hg/m3 (EPA Region 7) 0.00616 ND Aroclor -1254 (in air sample) Lab 30.7 Hg/m3 (EPA Region 7) ND ND Aroclor -1260 (in air sample) Lab 30.7 Hg/m3 (EPA Region 7) ND ND Comments Laboratory samples collected Monday and Wednesday, 8/24/2015 and 8/26/2015. Air Monitoring / Sampling Results - Station 3 (Results reported in |ig/mB) Parameter Type of Analysis Standard / Action Level Monday 8/24/2015 Tuesday 8/25/2015 Wednesday 8/26/2015 Thursday 8/27/2015 Friday 8/28/2015 Saturday 8/29/2015 Sunday 8/30/2015 PMio (24-hour TWA) Real- time 150 ng/m3 (NAAQS) 4.4 5.1 6.6 11.6 14.5 17.5 28.3 Aroclor -1242 (in air sample) Lab 30.7 Hg/m3 (EPA Region 7) ND ND Aroclor -1248 (in air sample) Lab 30.7 Hg/m3 (EPA Region 7) ND ND Aroclor -1254 (in air sample) Lab 30.7 Hg/m3 (EPA Region 7) ND ND Aroclor -1260 (in air sample) Lab 30.7 Hg/m3 (EPA Region 7) ND ND Comments Laboratory samples collected Monday and Wednesday, 8/24/2015 and 8/26/2015. ------- Carter Carburetor Weekly Air Monitoring & Sampling Report August 24, 2015 - August 30, 2015 Air Monitoring / Sampling Results - Station 4 (Results reported in |ig/mB) Parameter Type of Analysis Standard / Action Level Monday 8/24/2015 Tuesday 8/25/2015 Wednesday 8/26/2015 Thursday 8/27/2015 Friday 8/28/2015 Saturday 8/29/2015 Sunday 8/30/2015 PMio (24-hour TWA) Real- time 150 ng/m3 (NAAQS) 2.0 2.0 5.5 7.6 9.3 13.0 19.9 Aroclor -1242 (in air sample) Lab 30.7 Hg/m3 (EPA Region 7) ND ND Aroclor -1248 (in air sample) Lab 30.7 Hg/m3 (EPA Region 7) ND ND Aroclor -1254 (in air sample) Lab 30.7 Hg/m3 (EPA Region 7) ND ND Aroclor -1260 (in air sample) Lab 30.7 Hg/m3 (EPA Region 7) ND ND Comments Laboratory samples collected Monday and Wednesday, 8/24/2015 and 8/26/2015. Air Monitoring / Sampling Results - Station 5 (Results reported in |ig/mB) Parameter Type of Analysis Standard / Action Level Monday 8/24/2015 Tuesday 8/25/2015 Wednesday 8/26/2015 Thursday 8/27/2015 Friday 8/28/2015 Saturday 8/29/2015 Sunday 8/30/2015 PMio (24-hour TWA) Real- time 150 ng/m3 (NAAQS) 1.0 1.2 2.7 9.6 12.4 19.4 35.4 Aroclor -1242 (in air sample) Lab 30.7 Hg/m3 (EPA Region 7) ND ND Aroclor -1248 (in air sample) Lab 30.7 Hg/m3 (EPA Region 7) ND ND Aroclor -1254 (in air sample) Lab 30.7 Hg/m3 (EPA Region 7) ND ND Aroclor -1260 (in air sample) Lab 30.7 Hg/m3 (EPA Region 7) ND ND Comments Laboratory samples collected Monday and Wednesday, 8/24/2015 and 8/26/2015. 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 ND - Not detected 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) Hg/m3 - Micrograms per cubic meter 1 2 3 Temperature reported in degrees Fahrenheit Wind speed reported in miles per hour Precipitation reported in inches ------- Carter Carburetor Weekly Air Monitoring & Sampling Report August 24, 2015 - August 30, 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| ------- |