Carter Carburetor Weekly Air Monitoring & Sampling Report February 01, 2016 - February 07, 2016 Carter Carburetor Daily Weather Conditions Monday 2/01/2016 Tuesday 2/02/2016 Wednesday 2/03/2016 Thursday 2/04/2016 Friday 2/05/2016 Saturday 2/06/2016 Sunday 2/07/2016 Temperature (range)1 54-39 66-42 50-30 43-22 42-27 58-28 55-38 Wind Speed (peak & average)2 19.9/6.0 32.0/12.8 36.0/17.9 23.9/8.1 13.0/4.0 25.1/6.7 38.0/13.0 Wind Direction (predominant) E SE W W SW W W Precipitation (total)3 0.00 0.15 Trace 0.00 0.00 0.00 Trace Carter Carburetor Daily Work Activities Site Activity Monday 2/01/2016 Tuesday 2/02/2016 Wednesday 2/03/2016 Thursday 2/04/2016 Friday 2/05/2016 Saturday 2/06/2016 Sunday 2/07/2016 Backfilling of excavation area X Collection of scrap metal and rebar X X X X X Dewatering of excavation area X X Excavation base inspection X Excavation of die cast area X X Processing of 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 2/01/2016 Tuesday 2/02/2016 Wednesday 2/03/2016 Thursday 2/04/2016 Friday 2/05/2016 Saturday 2/06/2016 Sunday 2/07/2016 PMio (24-hour TWA) Real- time 150 ng/m3 (NAAQS) 16.2 33.0 15.3 16.7 25.4 32.6 19.8 Aroclor -1242 (in air sample) Lab 30.7 Hg/m3 (EPA Region 7) 0.00745 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, 2/02/2016, and Thursday, 2/04/2016. ------- Carter Carburetor Weekly Air Monitoring & Sampling Report February 01, 2016 - February 07, 2016 Air Monitoring / Sampling Results - Station 2 LINC126 Results reported in |ig/m3) Parameter Type of Analysis Standard / Action Level Monday 2/01/2016 Tuesday 2/02/2016 Wednesday 2/03/2016 Thursday 2/04/2016 Friday 2/05/2016 Saturday 2/06/2016 Sunday 2/07/2016 PMio (24-hour TWA) Real- time 150 ng/m3 (NAAQS) 10.1 21.9 9.6 10.2 16.1 21.4 11.9 Aroclor -1242 (in air sample) Lab 30.7 Hg/m3 (EPA Region 7) ND 0.128 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, 2/02/2016, and Thursday, 2/04/2016. Air Monitoring / Sampling Results - Station 3 LINC 123 Results reported in |ig/m3) Parameter Type of Analysis Standard / Action Level Monday 2/01/2016 Tuesday 2/02/2016 Wednesday 2/03/2016 Thursday 2/04/2016 Friday 2/05/2016 Saturday 2/06/2016 Sunday 2/07/2016 PMio (24-hour TWA) Real- time 150 ng/m3 (NAAQS) 12.4 34.4 12.0 12.5 20.4 28.0 16.3 Aroclor -1242 (in air sample) Lab 30.7 Hg/m3 (EPA Region 7) 0.0311 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, 2/02/2016, and Thursday, 2/04/2016. ------- Carter Carburetor Weekly Air Monitoring & Sampling Report February 01, 2016 - February 07, 2016 Air Monitoring / Sampling Results - Station 4 LINC128 Results reported in |ig/m3) Parameter Type of Analysis Standard / Action Level Monday 2/01/2016 Tuesday 2/02/2016 Wednesday 2/03/2016 Thursday 2/04/2016 Friday 2/05/2016 Saturday 2/06/2016 Sunday 2/07/2016 PMio (24-hour TWA) Real- time 150 ng/m3 (NAAQS) 4.7 17.1 4.5 5.6 12.1 18.2 8.1 Aroclor -1242 (in air sample) Lab 30.7 Hg/m3 (EPA Region 7) 0.0417 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, 2/02/2016, and Thursday, 2/04/2016. Air Monitoring / Sampling Results - Station 5 LINC 133 Results reported in |ig/m3) Parameter Type of Analysis Standard / Action Level Monday 2/01/2016 Tuesday 2/02/2016 Wednesday 2/03/2016 Thursday 2/04/2016 Friday 2/05/2016 Saturday 2/06/2016 Sunday 2/07/2016 PMio (24-hour TWA) Real- time 150 ng/m3 (NAAQS) 22.8 44.0 21.9 24.8 33.4 41.7 27.7 Aroclor -1242 (in air sample) Lab 30.7 Hg/m3 (EPA Region 7) ND Aroclor -1248 (in air sample) Lab 30.7 Hg/m3 (EPA Region 7) ND Aroclor -1254 (in air sample) Lab 30.7 Hg/m3 (EPA Region 7) ND Aroclor -1260 (in air sample) Lab 30.7 Hg/m3 (EPA Region 7) ND Comments Laboratory sample collected on Thursday, 2/04/2016. Air sampling equipment malfunctioned on Tuesday, 2/02/2016, so that sample was not submitted for analysis. 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 PMm - 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 February 01, 2016 - February 07, 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| ------- |