Carter Carburetor Weekly Air Monitoring & Sampling Report January 11, 2016 - January 17, 2016 Carter Carburetor Daily Weather Conditions Monday 1/11/2016 Tuesday 1/12/2016 Wednesday 1/13/2016 Thursday 1/14/2016 Friday 1/15/2016 Saturday 1/16/2016 Sunday 1/17/2016 Temperature (range)1 42-15 39-19 49-17 66-31 51-30 34-26 27-8 Wind Speed (peak & average)2 46.1/11.4 40.9/12.1 21.9/6.7 33.1/11.6 35.1/13.0 21.0/8.1 25.1/11.0 Wind Direction (predominant) W NW SW SW W NW NW Precipitation (total)3 Trace Trace 0.00 0.00 0.09 0.00 0.01 Carter Carburetor Daily Work Activities Site Activity Monday 1/11/2016 Tuesday 1/12/2016 Wednesday 1/13/2016 Thursday 1/14/2016 Friday 1/15/2016 Saturday 1/16/2016 Sunday 1/17/2016 Collection of scrap metal and rebar X X X X X Demolition of CBI building X Demolition of cooling tower #1 X X X Dewatering of excavation area X X Installation of treated water pipe 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 1/11/2016 Tuesday 1/12/2016 Wednesday 1/13/2016 Thursday 1/14/2016 Friday 1/15/2016 Saturday 1/16/2016 Sunday 1/17/2016 PMio (24-hour TWA) Real- time 150 ng/m3 (NAAQS) 21.9 17.3 20.3 18.9 34.2 21.8 18.1 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 on Tuesday, 1/12/2016, and Thursday, 1/14/2016. ------- Carter Carburetor Weekly Air Monitoring & Sampling Report January 11, 2016 - January 17, 2016 Air Monitoring / Sampling Results - Station 2 LINC126 Results reported in |ig/m3) Parameter Type of Analysis Standard / Action Level Monday 1/11/2016 Tuesday 1/12/2016 Wednesday 1/13/2016 Thursday 1/14/2016 Friday 1/15/2016 Saturday 1/16/2016 Sunday 1/17/2016 PMio (24-hour TWA) Real- time 150 ng/m3 (NAAQS) 14.8 9.7 12.0 12.5 24.9 14.2 9.9 Aroclor -1242 (in air sample) Lab 30.7 Hg/m3 (EPA Region 7) 0.0373 0.00592 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 on Tuesday, 1/12/2016, and Thursday, 1/14/2016. Air Monitoring / Sampling Results - Station 3 LINC 123 Results reported in |ig/m3) Parameter Type of Analysis Standard / Action Level Monday 1/11/2016 Tuesday 1/12/2016 Wednesday 1/13/2016 Thursday 1/14/2016 Friday 1/15/2016 Saturday 1/16/2016 Sunday 1/17/2016 PMio (24-hour TWA) Real- time 150 ng/m3 (NAAQS) 22.4 12.8 17.2 18.9 31.9 18.0 13.3 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 on Tuesday, 1/12/2016, and Thursday, 1/14/2016. ------- Carter Carburetor Weekly Air Monitoring & Sampling Report January 11, 2016 - January 17, 2016 Air Monitoring / Sampling Results - Station 4 LINC128 Results reported in |ig/m3) Parameter Type of Analysis Standard / Action Level Monday 1/11/2016 Tuesday 1/12/2016 Wednesday 1/13/2016 Thursday 1/14/2016 Friday 1/15/2016 Saturday 1/16/2016 Sunday 1/17/2016 PMio (24-hour TWA) Real- time 150 ng/m3 (NAAQS) 10.7 5.5 8.5 7.7 19.0 10.0 7.3 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 on Tuesday, 1/12/2016, and Thursday, 1/14/2016. Air Monitoring / Sampling Results - Station 5 LINC 133 Results reported in |ig/m3) Parameter Type of Analysis Standard / Action Level Monday 1/11/2016 Tuesday 1/12/2016 Wednesday 1/13/2016 Thursday 1/14/2016 Friday 1/15/2016 Saturday 1/16/2016 Sunday 1/17/2016 PMio (24-hour TWA) Real- time 150 ng/m3 (NAAQS) 31.6 20.7 26.8 26.4 44.3 29.6 28.5 Aroclor -1242 (in air sample) Lab 30.7 Hg/m3 (EPA Region 7) 0.0337 0.0158 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 on Tuesday, 1/12/2016, and Thursday, 1/14/2016. 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 January 11, 2016 - January 17, 2016 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| ------- |