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Complaint Investigation Summary Report #: 5105 <br />COMPLAINT ID: C00054426 <br /> <br />Site Location: 29050 E WIMER RD <br /> <br />Activity Date <br />11/16/2021 <br />11/19/2021 <br />11/20/2021 <br />11/23/2021 <br />12/01/2021 <br />12/02/2021 <br />12/02/2021 <br />Activity Summary <br />Updated of ER spill by Elianna Florido. Will need to go to cleanup. Reviewed <br />complaint. <br />Notified by Alex Steele that Dave Larsen will be on-site tomorrow (Saturday) to <br />continue excavation and confirmation soil sampling for PCBs will be done by <br />Arcadis on 11/23. Called and spoke to Dave who confirmed he will be on-site <br />tomorrow morning at 7am to begin clean-up. Notified him to contact John Alaniz, <br />weekend inspector, to verify the clean-up. Updated John on the clean-up and <br />sampling, since John may have to witness sampling since I will be off 11/22-11/26. <br />TIME SPENT: 3:42 PM-6:48 PM <br />Received a call from Dave Larsen, PG&E, informing that the spill cleanup was <br />completed. Left for the site and met with Dave and property owner Galen Olson, <br />209-887-2624. Dave generated approximately 2 additional 55 gallon drums of <br />contaminated soil. Cleanup observed was deemed acceptable to county standards <br />(sampling of soil for PCBs will still take place). The waste was taken back to 4040 <br />West Ln, Stockton. <br />NOTE: On the way to the spill I got lost and required the assistance of Lead <br />Senior Haza Saeed. <br />8:00 AM: Called Alex Steele, PG&E, 209-337-8902, and confirmed sampling <br />would take place at 9:00AM. Called the property owner and informed them I <br />would be leaving to the site. <br />Site visit 8:18 AM-1:42 PM <br />Witnessed PCB sampling by Jocelyn Wong with Arcadis (415-710-0074). 29 <br />samples were taken around the excavated area. Alex was onsite overseeing <br />sampling. <br />Left site at approximately 12:30 and arrived back to the EHD at 1:42PM <br />Completed photo logs from 11/20 and 11/23 site visit and gave to lead inspector. <br />Reviewed narrative. Called and spoke to Alex who states he received the sample <br />results back and there are two 5ft by 5ft areas that need more excavation and <br />sampling, Dave will be excavating today, and Alex will be taking the samples on <br />Friday. <br />Was updated by Elianna Florido, senior REHS, that additional sampling will be <br />needed based on PCB results. May need to witness sampling on 12/3/2021. <br />Updated Elianna that I will be going to the sampling site. <br />Emailed Kristina Saetern Saetern, EHS, sample results received from Alex Steele. <br />Discussed results with Kristina and Elena Manzo, lead senior. <br />Received an update from Alex Steele that the sampling is scheduled to take place <br />on 12/3/2021 at 9:00 AM. Alex also said he would email the Arcadis sampling <br />results later. <br />Recorded by <br />ALANIZ <br />FLORIDO <br />ALANIZ <br />ALANIZ <br />FLORIDO <br />ALANIZ <br />ALANIZ <br />Received the PCB results and emailed them to the inspector in charge of the <br />complaint. Alex indicated that sampling results below 0.062 mg/kg meet EPA <br />standards for residential levels and would not require further testing. <br />Reviewed sampling site map. <br />5105.rpt <br />Page 3 of 4