Table 1 Community Continuous Air Monitoring Results East Palestine Derailment Site East Palestine, Columbiana County, Ohio We are in the process of ensuring this document is accessible to all audiences. If you need assistance accessing this document, or any materials on the EPA East Palestine, Ohio emergency response webpages, please contact the Region 5 Public Information Officer on- call r5_eastpalestine@epa.gov Monitoring Period: 03/10/2023 00:00 through 03/11/2023 09:59 Air Monitering Instrument: Serial Number Analyte Screening Level1 Screening Level Exceeded? 8-hour Period Concentration Range Average of All 8-hour Periods 8533230503 PM2 5 (mg/m3) 0.035 mg/m3 No 0.007 to 0.013 0.009 PM10 (mg/m3) 0.035 mg/m3 No 0.007 to 0.014 0.01 8533230504 PM2 5 (mg/m3) 0.035 mg/m3 No 0.005 to 0.011 0.007 PM10 (mg/m3) 0.035 mg/m3 No 0.006 to 0.012 0.008 8533230702 PM2 5 (mg/m3) 0.035 mg/m3 No 0.002 to 0.01 0.006 PM10 (mg/m3) 0.035 mg/m3 No 0.002 to 0.014 0.007 W01B00002162 VOC (ppm) 0.5 ppm No 0.00 to 0.00 0.00 CO (ppm) 9 ppm No 0.00 to 0.00 0.00 H2S (ppm) 0.1 ppm No 0.00 to 0.00 0.00 LEL (%) >5% No 0.00 to 0.00 0.00 W01B00002164 VOC (ppm) 0.5 ppm No 0.00 to 0.00 0.00 CO (ppm) 9 ppm No 0.00 to 0.00 0.00 H2S (ppm) 0.1 ppm No 0.00 to 0.00 0.00 LEL (%) >5% No 0.00 to 0.00 0.00 W01B00002170 VOC (ppm) 0.5 ppm No 0.00 to 0.0 0.00 CO (ppm) 9 ppm No 0.00 to 0.01 0.00 H2S (ppm) 0.1 ppm No 0.00 to 0.00 0.00 LEL (%) >5% No 0.00 to 0.00 0.00 HCN (ppm) 1 ppm No 0.00 to 0.00 0.00 W01A00002173 VOC (ppm) 0.5 ppm No 0.00 to 0.00 0.00 CO (ppm) 9 ppm No 0.00 to 0.00 0.00 H2S (ppm) 0.1 ppm No 0.00 to 0.00 0.00 LEL (%) >5% No 0.00 to 0.00 0.00 W01A00002175 VOC (ppm) 0.5 ppm No 0.00 to 0.00 0.00 CO (ppm) 9 ppm No 0.00 to 0.00 0.00 H2S (ppm) 0.1 ppm No 0.00 to 0.00 0.00 LEL (%) >5% No 0.00 to 0.00 0.00 W01A00002181 VOC (ppm) 0.5 ppm No 0.00 to 0.00 0.00 CO (ppm) 9 ppm No 0.00 to 0.00 0.00 H2S (ppm) 0.1 ppm No 0.00 to 0.00 0.00 LEL (%) >5% No 0.00 to 0.00 0.00 W01A00002182 VOC (ppm) 0.5 ppm No 0.00 to 0.00 0.00 CO (ppm) 9 ppm No 0.00 to 0.00 0.00 H2S (ppm) 0.1 ppm No 0.00 to 0.00 0.00 LEL (%) >5% No 0.00 to 0.00 0.00 W01A00002185 VOC (ppm) 0.5 ppm No 0.00 to 0.00 0.00 CO (ppm) 9 ppm No 0.00 to 0.00 0.00 H2S (ppm) 0.1 ppm No 0.00 to 0.00 0.00 LEL (%) >5% No 0.00 to 0.00 0.00 W01A00002653 VOC (ppm) 0.5 ppm No 0.00 to 0.00 0.00 CO (ppm) 9 ppm No 0.00 to 0.00 0.00 H2S (ppm) 0.1 ppm No 0.00 to 0.00 0.00 LEL (%) >5% No 0.00 to 0.00 0.00 ------- Table 1 Community Continuous Air Monitoring Results East Palestine Derailment Site East Palestine, Columbiana County, Ohio Monitoring Period: 03/10/2023 00:00 through 03/11/2023 09:59 Air Monitering Instrument: Serial Number Analyte Screening Level1 Screening Level Exceeded? 8-hour Period Concentration Range Average of All 8-hour Periods W01B00002172 VOC (ppm) 0.5 ppm No 0.00 to 0.0 0.00 CO (ppm) 9 ppm No 0.00 to 0.02 0.01 H2S (ppm) 0.1 ppm No 0.00 to 0.00 0.00 LEL (%) >5% No 0.00 to 0.00 0.00 HCN (ppm) 1 ppm No 0.00 to 0.00 0.00 W01B00002181 VOC (ppm) 0.5 ppm No 0.00 to 0.00 0.00 CO (ppm) 9 ppm No 0.00 to 0.00 0.00 H2S (ppm) 0.1 ppm No 0.00 to 0.00 0.00 LEL (%) >5% No 0.00 to 0.00 0.00 W01B00002183 VOC (ppm) 0.5 ppm No 0.0 to 0.02 0.01 CO (ppm) 9 ppm No 0.00 to 0.0 0.00 H2S (ppm) 0.1 ppm No 0.00 to 0.00 0.00 LEL (%) >5% No 0.00 to 0.00 0.00 HCN (ppm) 1 ppm No 0.00 to 0.00 0.00 W01B00002206 VOC (ppm) 0.5 ppm No 0.00 to 0.00 0.00 CO (ppm) 9 ppm No 0.00 to 0.0 0.00 H2S (ppm) 0.1 ppm No 0.00 to 0.00 0.00 LEL (%) >5% No 0.00 to 0.00 0.00 W01B00002208 VOC (ppm) 0.5 ppm No 0.00 to 0.00 0.00 CO (ppm) 9 ppm No 0.00 to 0.00 0.00 H2S (ppm) 0.1 ppm No 0.00 to 0.00 0.00 LEL (%) >5% No 0.00 to 0.00 0.00 W01B00002222 VOC (ppm) 0.5 ppm No 0.00 to 0.0 0.00 CO (ppm) 9 ppm No 0.00 to 0.01 0.00 H2S (ppm) 0.1 ppm No 0.00 to 0.00 0.00 LEL (%) >5% No 0.00 to 0.00 0.00 HCN (ppm) 1 ppm No 0.00 to 0.00 0.00 W01B00002220 VOC (ppm) 0.5 ppm No 0.00 to 0.00 0.00 CO (ppm) 9 ppm No 0.00 to 0.00 0.00 H2S (ppm) 0.1 ppm No 0.00 to 0.00 0.00 LEL (%) >5% No 0.00 to 0.00 0.00 W01B00002221 VOC (ppm) 0.5 ppm No 0.00 to 0.00 0.00 CO (ppm) 9 ppm No 0.00 to 0.00 0.00 H2S (ppm) >5% No 0.00 to 0.00 0.00 W01B00002223 VOC (ppm) 0.5 ppm No 0.00 to 0.00 0.00 CO (ppm) 9 ppm No 0.00 to 0.00 0.00 H2S (ppm) >5% No 0.00 to 0.00 0.00 ------- Table 1 Community Continuous Air Monitoring Results East Palestine Derailment Site East Palestine, Columbiana County, Ohio Monitoring Period: 03/10/2023 00:00 through 03/11/2023 09:59 Notes: 1 Site-Specific Action Level stated in the Tetra Tech Air Monitoring and Sampling Plan. Air monitoring measurements have been averaged over a 8-hour time period and summarized above. Air monitoring is not performed during inclement weather conditions/rain and thunderstorms. Abbreviations: < - Less than > - Greater than % - Percent CO - Carbon Monoxide H2S - Hydrogen Sulfide HCN - Hydrogen Cyanide LEL - Lower Explosive Limit 02- Oxygen ppm - Parts per million S/N - Serial number VOC - Volatile organic compound We are in the process of ensuring this document is accessible to all audiences. If you need assistance accessing this document, or any materials on the EPA East Palestine, Ohio emergency response webpages, please contact the Region 5 Public Information Officer on-call r5_eastpalestine@epa.gov ------- i Gould ¦; Pond Fiailei^St E .Grant East Palestine Cemetery Jimtown W01600002223! W01B00Q0222QJ W01A00002653 fe ryw'0"l^Q00024^ ¦j .8533230'5|8iEi W01B00002221 M/(>M000Q2173 I 8533230702 ¦W01A0000060Q 8533230503 WOi 60000222-2 W01B000Q2162 M01800002M0; W.01BOQ002181- Plot for [YKC] YOUNGS-OWN Generated: 13 Mar 2023 ».¦ /^aaBi Ell Gamelands No Summary Obs Used; 34 Obs Without Wind: 0 Avg Speed: 4.4 mph Reference Map Legend 0 Continuous Air Monitoring Locations with DustTrak 0 Continuous Air Monitoring Locations A Derailment Location One Mile Radius Miles East Palestine Derailment ER Site East Palestine, Columbiana County, OH 44413 Figure 1 Continuous Air Monitoring Community Stations Location It TETRA TECH Prepared For: EPA Prepared By: TetraTech Inc. Date Saved: 3/12/2023 ------- |