2017 Hurricane Harvey Deployment Arkema Site and Rapid Needs Assessment Chemical Detections 9/7/2017 6:06:38 PM Date Flight # Primary Mission Compound Detections* Systems Check Arkema Site No Detections Arkema Site No Detections Arkema Site Peroxide* (Arkema) 5.3 Trace (6.3*) Arkema Site Peroxide* (Arkema) 5.3 Trace (6.3*) Arkema Site No Detections Arkema Site & 7 Peroxide* (Arkema) 5.3 Trace (6.3*), multiple passes 9/1 Zone 5 RNA 8 Arkema Site (Fires) Peroxide* (Arkema) 5.3 Trace (6.3*), multiple passes 9/1 Arkema Site & 9 No Detections 9/2 Zones 5 & 6 RNA Arkema Site & 10 Peroxide* (Arkema) 5.3 Trace (6.3*), multiple passes 9/2 Zone 6 RNA 11 Arkema Site Peroxide* (Arkema) 5.3 Trace (6.3*) 9/2 Arkema Site Arkema: Peroxide 5.3 Trace (6.3*) 12 9/3 Zone 6 & 7 RNA Zone 6: 1-butene 12.0 Trace (13*) 13 Arkema Site Peroxide 5.3 7.7 ppm (max) 9/3 14 Zone 7 RNA No Detections 9/4 15 Zone 4 RNA 1-butene 12.0 Trace (13*) 9/4 16 Zone 4 RNA No Detections 9/5 17 Zone 4 RNA No Detections 9/5 18 Zone 10 RNA No Detections 9/6 19 Zone 8 RNA 1-butene 12.0 Trace (13*) 9/6 * “Trace” detection represents a value slightly above (about 1 ppm) the limit of detection. Peroxide measurements are being reported as requested by the Environmental Unit. These measurements are associated with the Arkema site and were obtained before, during, and after the trailers burned. 8/29 8/30 8/31 8/31 8/31 9/1 1 2 3 4 5 6 Limit of Detection (ppm) Page 1 of 2 2017 Hurricane Harvey Deployment Arkema Site and Rapid Needs Assessment Positive Chemical Detections 9/7/2017 6:06:38 PM The table below lists the chemical compounds that are included in the TCEQ short-term AMCV spreadsheet and in the ASPECT automated detection library. The ASPECT automated processing chemical detection algorithms look for every compound listed in the table but only report positive detections. Chemical Compounds 1,1-dichloroethane 1-butene acetone dichlorodifluoromethane ethyl acetate ethylene isobutane methyl ethyl ketone methylene chloride n-butyl acetate n-propyl acetate propylene vinyl chloride Short-term AMCV (ppm) 1.0 27 11 10 4 500 33 20 3.4 7.4 2 Simple Asphyxiant 27 ASPECT Dection Limit (ppm)* 0.8 12 5.6 0.7 0.8 5 15 7.5 1.1 3.8 0.7 3.7 0.6 * The concentration limits are derived using a 10 meter plume path length. Page 2 of 2