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Complaint Investigation Summary Report #: 5105 <br />COMPLAINT ID: COBQ9VA00 Site Location: 0 W LINNE RD <br />Activity Date <br />Activity Summary <br />Recorded by <br />06/10/2021 Wrote Notice to Abate. Emailed Notice to Abate to Roman Benedyuk (Safety and BAKER <br />Compliance) at roman.benedyuk@slurry.com <br />Called Roman Benedyuk at 916-416-9256 for an update on the clean-up. He said <br />that in one area they need another piece of equipment to excavate because it is <br />too deep and the dirt is too hard. Clean-up will be completed tomorrow (6/11/21).. <br />Received call from Roman Benedyuk that the plan has changed. The excavator is <br />on site and clean-up will be done around 2:00 pm. <br />Left for site. Met with Roman Benedyuk. Clean-up is complete. One 20 yard roll <br />off of waste was generated from the clean-up. Analytical for the waste is being <br />done before disposal. Left site. <br />Completed site map. Turned in Prop 65 to Elena Manzo (Lead Sr. REHS) for <br />review. Completed photo log. Verified GIS in EC. <br />07/21/2021 Received disposal record from roman.benedyuk@slurry.com on 7/9/21. 12 yards <br />of soil was disposed of as non hazardous waste on 6/24/21 to Potrero Hills <br />BAKER <br />Landfill. Requested copy of analytical. <br />07/22/2021 Reviewed and summarized sample results received from the facility on 7/21/21. BAKER <br />McCampbell Analytical Inc performed analytical. <br />Sample Tracy-1, dated 6-10-21, contaminated soil <br />TTLC (mg/kg) = arsenic 2.8, barium 140, chromium 19, cobalt 13, copper 21, lead <br />6.1, mercury .16, molybdenum 1.2, nickel 27, selenium 1.8, vanadium 23, zinc 78 <br />Gasoline range volatile hydrocarbons (mg/kg) = all results ND <br />Total extractable petroleum hydrocarbons (mg/kg) = tph-diesel 100, tph-motor oil <br />1300. <br />All results are below Title 22 regulatory levels for hazardous waste. Testing is <br />complete. <br />Abated complaint as 01-Field Response-violations cited and corrected. Put file on <br />Elena Manzo's (Lead Sr. REHS) desk for review. <br />5105 rpt <br /> Page 2 of 2