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Page 1 of 2 <br /> Garrett Backus [EH] <br /> From: Garrett Backus [EH] <br /> Sent: Monday, July 19, 2010 2:24 PM <br /> To: 'Duncan Austin (DAustin@waterboards.ca.gov)' <br /> Cc: 'tmiles@dtsc.ca.gov'; 'Cheryl.Haines@arcadis-us.com'; 'Steve.Azevedo@ kn iferiver.com' <br /> Subject: FW: Kent's Oil Service, Manteca, CA <br /> Attachments: ARC10071623F_KENT'S OIL SERVICE.pdf; KENT'S OIL SERVICE LTR..pdf <br /> Duncan, <br /> I am forwarding analytical results from soil samples taken July 15, 10 at Kent's Oil Service. Please add this <br /> information to the case referral sent to you on July 6, 10. <br /> Garrett Backus <br /> Senior Registered Environmental Health Specialist <br /> San Joaquin County Environmental Health Department <br /> 600 E Main Street,Stockton CA 95202-3029 <br /> telephone: (209)468-2986 <br /> fax: (209)468-3433 <br /> email: gbackus@sjcehd.com <br /> From: Haines, Cheryl [mailto:Cheryl.Haines@arcadis-us.com] <br /> Sent: Monday, July 19, 2010 1:41 PM <br /> To: Garrett Backus [EH] <br /> Cc: Hull, David; Hackman, Scott; Amy Paplanus <br /> Subject: Kent's Oil Service, Manteca, CA <br /> I <br /> Good Afternoon Garrett, I <br /> ARCADIS received the following analytical results from the shallow native soil samples collected beneath the chip <br /> seal and recycled asphalt base. <br /> The TPH DRO concentrations reported by the laboratory ranged between 71 and 210 mg/kg. The analytical <br /> laboratory provided a narrative indicating that the soil samples contained heavy-end material consistent with <br /> asphalt. Based upon the laboratory information, the reported concentrations elutes in the DRO range. The <br /> laboratory reported that SS-1 and SS-2 contained minor amounts of diesel fuel hydrocarbons that appeared <br /> weathered. <br /> Based upon the San Francisco Bay, Regional Water Quality Control Board, Environmental Screening Level (ESL) <br /> look up table for soil (Table K-2), the ESL for TPH (middle distillates)for Worker's Protection at a Commercial <br /> Property is 450 mglkg. <br /> Based upon the attached analytical results and interpretation by the laboratory, it appears that the diesel spill has <br /> not impacted native soil beneath the chip seal and recycled asphalt layer at the Site. <br /> Please feel free to call us if you have any questions or comments. <br /> Cheryl Haines cheryl.haines@arcadis_us com <br /> ARCADIS U.S., Inc. I mailing address: 10580 N. McCarran Boulevard, Suite 115-1021 Reno, NV 89503 <br /> T. 775-224-96071 F. 916.786.0366 <br /> www.arcadis-us.com <br /> 7/19/2010 <br />