Carter Carburetor Weekly Air Monitoring & Sampling Report December 14, 2015 - December 20, 2015 Carter Carburetor Daily Weather Conditions Monday 12/14/2015 Tuesday 12/15/2015 Wednesday 12/16/2015 Thursday 12/17/2015 Friday 12/18/2015 Saturday 12/19/2015 Sunday 12/20/2015 Temperature (range)1 58-45 49-44 60-36 38-32 42-29 47-26 57-42 Wind Speed (peak & average)2 38.9/16.1 21.0/9.4 32.0/13.0 25.1/9.4 30.0/12.3 18.1/6.7 31.1/14.3 Wind Direction (predominant) SW SE W W W S S Precipitation (total)3 0.38 Trace 0.14 0.00 0.00 0.00 0.01 Carter Carburetor Daily Work Activities Site Activity Monday 12/14/2015 Tuesday 12/15/2015 Wednesday 12/16/2015 Thursday 12/17/2015 Friday 12/18/2015 Saturday 12/19/2015 Sunday 12/20/2015 Collecting scrap metal and rebar X X X X X Demolition of CBI building X X X X X Die cast area excavation X X Die cast area materials hauled off site X X Processing building rubble X X X X X Scrap metal and rebar hauled off site X X Daily Air Monitoring and Sampling Results Air Monitoring / Sampling Results - Station 1 LINC127 Results reported in |ig/m3) Parameter Type of Analysis Standard / Action Level Monday 12/14/2015 Tuesday 12/15/2015 Wednesday 12/16/2015 Thursday 12/17/2015 Friday 12/18/2015 Saturday 12/19/2015 Sunday 12/20/2015 PMio (24-hour TWA) Real- time 150 ng/m3 (NAAQS) 7.9 17.0 12.8 13.9 14.4 16.6 12.9 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 Tuesday, 12/15/2015, and Thursday, 12/17/2015. ------- Carter Carburetor Weekly Air Monitoring & Sampling Report December 14, 2015 - December 20, 2015 Air Monitoring / Sampling Results - Station 2 LINC126 Results reported in |ig/m3) Parameter Type of Analysis Standard / Action Level Monday 12/14/2015 Tuesday 12/15/2015 Wednesday 12/16/2015 Thursday 12/17/2015 Friday 12/18/2015 Saturday 12/19/2015 Sunday 12/20/2015 PMio (24-hour TWA) Real- time 150 ng/m3 (NAAQS) 5.1 14.5 8.0 8.9 9.6 10.4 8.1 Aroclor -1242 (in air sample) Lab 30.7 Hg/m3 (EPA Region 7) 0.168 0.146 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 Tuesday, 12/15/2015, and Thursday, 12/17/2015. Air Monitoring / Sampling Results - Station 3 LINC 123 Results reported in |ig/m3) Parameter Type of Analysis Standard / Action Level Monday 12/14/2015 Tuesday 12/15/2015 Wednesday 12/16/2015 Thursday 12/17/2015 Friday 12/18/2015 Saturday 12/19/2015 Sunday 12/20/2015 PMio (24-hour TWA) Real- time 150 ng/m3 (NAAQS) 8.1 18.6 12.8 12.5 12.4 14.1 11.9 Aroclor -1242 (in air sample) Lab 30.7 Hg/m3 (EPA Region 7) 0.0259 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 Tuesday, 12/15/2015, and Thursday, 12/17/2015. ------- Carter Carburetor Weekly Air Monitoring & Sampling Report December 14, 2015 - December 20, 2015 Air Monitoring / Sampling Results - Station 4 LINC128 Results reported in |ig/m3) Parameter Type of Analysis Standard / Action Level Monday 12/14/2015 Tuesday 12/15/2015 Wednesday 12/16/2015 Thursday 12/17/2015 Friday 12/18/2015 Saturday 12/19/2015 Sunday 12/20/2015 PMio (24-hour TWA) Real- time 150 ng/m3 (NAAQS) 1.5 12.6 3.9 6.1 6.1 7.3 4.7 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 Tuesday, 12/15/2015, and Thursday, 12/17/2015. Air Monitoring / Sampling Results - Station 5 LINC 133 Results reported in |ig/m3) Parameter Type of Analysis Standard / Action Level Monday 12/14/2015 Tuesday 12/15/2015 Wednesday 12/16/2015 Thursday 12/17/2015 Friday 12/18/2015 Saturday 12/19/2015 Sunday 12/20/2015 PMio (24-hour TWA) Real- time 150 ng/m3 (NAAQS) 11.3 28.2 15.1 17.1 21.4 21.0 16.3 Aroclor -1242 (in air sample) Lab 30.7 Hg/m3 (EPA Region 7) 0.0343 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 Tuesday, 12/15/2015, and Thursday, 12/17/2015. 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 PCB-Polychlorinated biphenyl 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 temperature reported in degrees Fahrenheit 2Wind speed reported in miles per hour 3 Precipitation reported in inches ------- Carter Carburetor Weekly Air Monitoring & Sampling Report December 14, 2015 - December 20, 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| ------- |