Carter Carburetor Weekly Air Monitoring & Sampling Report January 18, 2016 - January 24, 2016 Carter Carburetor Daily Weather Conditions Monday 1/18/2016 Tuesday 1/19/2016 Wednesday 1/20/2016 Thursday 1/21/2016 Friday 1/22/2016 Saturday 1/23/2016 Sunday 1/24/2016 Temperature (range)1 18-5 24-13 29-12 28-17 30-21 36-24 49-27 Wind Speed (peak & average)2 21.9/8.1 18.1/7.4 16.1/4.9 17.0/8.5 25.9/12.3 17.0/5.8 23.0/9.2 Wind Direction (predominant) W E E NE N NW S Precipitation (total)3 0.00 0.17 0.01 0.00 0.00 Trace 0.00 Carter Carburetor Daily Work Activities Site Activity Monday 1/18/2016 Tuesday 1/19/2016 Wednesday 1/20/2016 Thursday 1/21/2016 Friday 1/22/2016 Saturday 1/23/2016 Sunday 1/24/2016 Collection of scrap metal and rebar X X X X X Demolition of CBI building X Dewatering of excavation area X X X X Filling in excavation area X X Processing building rubble X X X X X Removal of boiler X 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 1/18/2016 Tuesday 1/19/2016 Wednesday 1/20/2016 Thursday 1/21/2016 Friday 1/22/2016 Saturday 1/23/2016 Sunday 1/24/2016 PMio (24-hour TWA) Real- time 150 ng/m3 (NAAQS) 16.9 21.7 30.3 38.3 55.2 42.3 31.7 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 on Tuesday, 1/19/2016, and Wednesday, 1/20/2016. ------- Carter Carburetor Weekly Air Monitoring & Sampling Report January 18, 2016 - January 24, 2016 Air Monitoring / Sampling Results - Station 2 LINC126 Results reported in |ig/m3) Parameter Type of Analysis Standard / Action Level Monday 1/18/2016 Tuesday 1/19/2016 Wednesday 1/20/2016 Thursday 1/21/2016 Friday 1/22/2016 Saturday 1/23/2016 Sunday 1/24/2016 PMio (24-hour TWA) Real- time 150 ng/m3 (NAAQS) 8.5 14.5 21.0 29.0 37.0 29.5 22.3 Aroclor -1242 (in air sample) Lab 30.7 Hg/m3 (EPA Region 7) 0.0118 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, 1/19/2016, and Wednesday, 1/20/2016. Air Monitoring / Sampling Results - Station 3 LINC 123 Results reported in |ig/m3) Parameter Type of Analysis Standard / Action Level Monday 1/18/2016 Tuesday 1/19/2016 Wednesday 1/20/2016 Thursday 1/21/2016 Friday 1/22/2016 Saturday 1/23/2016 Sunday 1/24/2016 PMio (24-hour TWA) Real- time 150 ng/m3 (NAAQS) 11.3 18.0 27.3 36.5 48.1 38.0 28.9 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 on Tuesday, 1/19/2016, and Wednesday, 1/20/2016. ------- Carter Carburetor Weekly Air Monitoring & Sampling Report January 18, 2016 - January 24, 2016 Air Monitoring / Sampling Results - Station 4 LINC128 Results reported in |ig/m3) Parameter Type of Analysis Standard / Action Level Monday 1/18/2016 Tuesday 1/19/2016 Wednesday 1/20/2016 Thursday 1/21/2016 Friday 1/22/2016 Saturday 1/23/2016 Sunday 1/24/2016 PMio (24-hour TWA) Real- time 150 ng/m3 (NAAQS) 6.0 10.6 17.9 26.9 36.5 26.6 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, 1/19/2016, and Wednesday, 1/20/2016. Air Monitoring / Sampling Results - Station 5 LINC 133 Results reported in |ig/m3) Parameter Type of Analysis Standard / Action Level Monday 1/18/2016 Tuesday 1/19/2016 Wednesday 1/20/2016 Thursday 1/21/2016 Friday 1/22/2016 Saturday 1/23/2016 Sunday 1/24/2016 PMio (24-hour TWA) Real- time 150 ng/m3 (NAAQS) 26.3 31.9 41.7 55.3 68.0 54.8 44.8 Aroclor -1242 (in air sample) Lab 30.7 Hg/m3 (EPA Region 7) 0.00659 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, 1/19/2016, and Wednesday, 1/20/2016. 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 18, 2016 - January 24, 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| ------- |