Table 1 Community Continuous Air Monitoring Results East Palestine Derailment Site East Palestine, Columbiana County, Ohio Monitoring Period: 06/05/2023 00:00 through 06/06/2023 10:09 Air Monitoring Instrument: Serial Number Analyte Screening Level1 Screening Level Exceeded? 8-hour Period Concentration Range Average of All 8-hour Periods 8533183117 PM25 (mg/m3) 0.035 (mg/m3) Yes2 0.021 to 0.065 0.045 PM10 (mg/m3) 0.070 (mg/m3) No 0.024 to 0.068 0.048 8533230504 PM25 (mg/m3) 0.035 (mg/m3) Yes2 0.021 to 0.078 0.051 PM10 (mg/m3) 0.070 (mg/m3) Yesz 0.025 to 0.083 0.055 8533230702 PM2.5 (mg/m3) 0.035 (mg/m3) Yes2 0.026 to 0.067 0.048 PM10 (mg/m3) 0.070 (mg/m3) No 0.028 to 0.069 0.050 W01A00000609 VOC (ppm) 0.5 (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 W01A00002181 VOC (ppm) 0.5 (ppm) No 0.00 to 0.00 0.00 W01A00002182 VOC (ppm) 0.5 (ppm) No 0.00 to 0.00 0.00 LEL (%) >5% No 0.00 to 0.00 0.00 W01B00002162 VOC (ppm) 0.5 (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 W01B00002170 VOC (ppm) 0.5 (ppm) No 0.00 to 0.00 0.00 W01B00002172 VOC (ppm) 0.5 (ppm) No 0.00 to 0.00 0.00 LEL (%) >5% No 0.00 to 0.00 0.00 W01B00002181 VOC (ppm) 0.5 (ppm) No 0.00 to 0.00 0.00 W01B00002183 VOC (ppm) 0.5 (ppm) No 0.00 to 0.00 0.00 W01B00002206 VOC (ppm) 0.5 (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 W01B00002209 VOC (ppm) 0.5 (ppm) No 0.00 to 0.12 0.01 LEL (%) >5% No 0.00 to 0.73 0.20 W01B00002220 VOC (ppm) 0.5 (ppm) No 0.00 to 0.00 0.00 W01B00002221 VOC (ppm) 0.5 (ppm) No 0.00 to 0.00 0.00 W01B00002222 VOC (ppm) 0.5 (ppm) No 0.00 to 0.00 0.00 W01B00002223 VOC (ppm) 0.5 (ppm) No 0.00 to 0.00 0.00 LEL (%) >5% No 0.00 to 0.00 0.00 Notes: 1 Site-Specific Screening Levels stated in the Tetra Tech Air Monitoring and Sampling Plan. Screening levels were modified on March 16, 2023 to reflect updated operation procedures on when to apply mitigation methods to reduce dust. Action levels set by health departments have not changed. 2 Vehicle traffic observed during monitoring period near monitoring instrument. 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: mg/m3 - milligrams per meter cubed PM2 5 - Particulate Matter, diameter 2.5 micrometers and smaller PM10 - Particulate Matter, diameter 10 micrometers and smaller 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 ------- Gould ¦•¦Pond State Gamelands No 285 Jimtown MLB0000222! .'IWOIBOOOO^IM] W01B00002i72 • ¦ W01A00000609 8533183117 I W01B00002183 ;W01B00002208 B00002-206 HKIL n ' ^' i bW01tB00002220 8533230504* -W01600002209*, , • ^E^^:^8533f'3Q7t023W^ B00002221 W0TA00002175. WQ1B00002222 - _ W01B00002181 W01B00002162- Plot for [YNG] YOUNGS-OWN Generated: 06 jun 2023 Summary Obs Used; 34 Obs Without Wind: O Avg Speed: 4.8 mph Reference Map Site Location Legend 0 Continuous Air Monitoring Locations with DustTrak [¦"] Continuous Air Monitoring Locations One Mile Radius Derailment Location East Palestine Derailment ER Site East Palestine, Columbiana County, OH 44413 Figure 1 Continuous Air Monitoring Community Stations TETRA TECH Prepared For: EPA Prepared By: TetraTech Inc. Date Saved: 6/3/2023 ------- |