Carter Carburetor Weekly Air Monitoring & Sampling Report January 04, 2016 - January 10, 2016 Carter Carburetor Daily Weather Conditions Monday 1/04/2016 Tuesday 1/05/2016 Wednesday 1/06/2016 Thursday 1/07/2016 Friday 1/08/2016 Saturday 1/09/2016 Sunday 1/10/2016 Temperature (range)1 37-25 42-23 47-25 51-41 55-54 45-18 18-7 Wind Speed (peak & average)2 21.9/7.2 28.0/7.2 19.9/8.9 23.9/10.1 23.0/9.4 36.0/13.6 36.9/13.4 Wind Direction (predominant) N S SE SE W NW NW Precipitation (total)3 0.00 0.00 Trace 0.06 0.01 0.45 Trace Carter Carburetor Daily Work Activities Site Activity Monday 1/04/2016 Tuesday 1/05/2016 Wednesday 1/06/2016 Thursday 1/07/2016 Friday 1/08/2016 Saturday 1/09/2016 Sunday 1/10/2016 Collection of scrap metal and rebar X X X X X Demolition of cooling tower #1 X X X X X Dewatering of excavation area X Processing building rubble X X X X X Scrap metal and rebar hauled off site 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 1/04/2016 Tuesday 1/05/2016 Wednesday 1/06/2016 Thursday 1/07/2016 Friday 1/08/2016 Saturday 1/09/2016 Sunday 1/10/2016 PMio (24-hour TWA) Real- time 150 ng/m3 (NAAQS) 14.8 16.9 19.5 20.5 19.2 19.9 15.2 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, 1/05/2016, and Thursday, 1/07/2016. ------- Carter Carburetor Weekly Air Monitoring & Sampling Report January 04, 2016 - January 10, 2016 Air Monitoring / Sampling Results - Station 2 LINC126 Results reported in |ig/m3) Parameter Type of Analysis Standard / Action Level Monday 1/04/2016 Tuesday 1/05/2016 Wednesday 1/06/2016 Thursday 1/07/2016 Friday 1/08/2016 Saturday 1/09/2016 Sunday 1/10/2016 PMio (24-hour TWA) Real- time 150 ng/m3 (NAAQS) 7.7 10.3 12.1 12.6 13.2 13.1 7.5 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, 1/05/2016, and Thursday, 1/07/2016. Air Monitoring / Sampling Results - Station 3 LINC 123 Results reported in |ig/m3) Parameter Type of Analysis Standard / Action Level Monday 1/04/2016 Tuesday 1/05/2016 Wednesday 1/06/2016 Thursday 1/07/2016 Friday 1/08/2016 Saturday 1/09/2016 Sunday 1/10/2016 PMio (24-hour TWA) Real- time 150 ng/m3 (NAAQS) 13.0 19.0 21.6 22.3 20.7 19.0 12.3 Aroclor -1242 (in air sample) Lab 30.7 Hg/m3 (EPA Region 7) 0.00691 0.0385 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, 1/05/2016, and Thursday, 1/07/2016. ------- Carter Carburetor Weekly Air Monitoring & Sampling Report January 04, 2016 - January 10, 2016 Air Monitoring / Sampling Results - Station 4 LINC128 Results reported in |ig/m3) Parameter Type of Analysis Standard / Action Level Monday 1/04/2016 Tuesday 1/05/2016 Wednesday 1/06/2016 Thursday 1/07/2016 Friday 1/08/2016 Saturday 1/09/2016 Sunday 1/10/2016 PMio (24-hour TWA) Real- time 150 ng/m3 (NAAQS) 5.4 5.9 8.2 8.2 8.5 8.5 4.9 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, 1/05/2016, and Thursday, 1/07/2016. Air Monitoring / Sampling Results - Station 5 LINC 133 Results reported in |ig/m3) Parameter Type of Analysis Standard / Action Level Monday 1/04/2016 Tuesday 1/05/2016 Wednesday 1/06/2016 Thursday 1/07/2016 Friday 1/08/2016 Saturday 1/09/2016 Sunday 1/10/2016 PMio (24-hour TWA) Real- time 150 ng/m3 (NAAQS) 20.3 24.1 27.5 27.3 27.2 26.7 24.2 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, 1/05/2016, and Thursday, 1/07/2016. 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 04, 2016 - January 10, 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| ------- |