Table 1 Community Continuous Air Monitoring Results East Palestine Derailment Site East Palestine, Columbiana County, Ohio Monitoring Period: 05/04/2023 00:00 through 05/05/2023 12:20 Air Monitoring Instrument: Serial Number Analyte Screening Level1 Screening Level Exceeded? 8-hour Period Concentration Range Average of All 8-hour Periods 8533230504 PM2 5 (mg/m3) 0.035 (mg/m3) No 0.001 to 0.030 0.012 PM10(mg/m3) 0.070 (mg/m3) No 0.002 to 0.032 0.013 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 W01B00002162 VOC (ppm) 0.5 (ppm) 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 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 W01B00002208 VOC (ppm) 0.5 (ppm) No 0.00 to 0.00 0.00 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 Notes: 1 Site-Specific Screening Levels stated in the Tetra Tech Quality Assurance Project 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. 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 W North Ave Park Ave Gamelands No 285 East Palestine Cemetery Jimtown W01B00002183. ;W01B00002208 A/V01AQ0Q02181 ^^;jMB00002-206 KI n ' I bW01tB0OOO222Q ;W01A00Q02182 '8533230504 iwMBO0Q0222-l W0TA000.02175 W01B00002i"70 WQ1BQQ002222~ _ WOlBOOOOiisl' W01B00002162 Plot for [YNG] YOUNGS-OWN Summary Obs Used; 36 Obs Without Wind: 0 Avg Speed: 5.7 mph Generated: 06 May 2023 Figure 1 Continuous Air Monitoring Community Stations TETRA TECH Prepared For: EPA Prepared By: TetraTech Inc. 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 Reference Map Location Miles Date Saved: 5/5/2023 ------- |