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i <br /> Page 1 of 1 <br /> Garrett Backus [EH] <br /> From: Haines, Cheryl [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 j <br /> Subject: Kent's Oil Service, Manteca, CA <br /> Attachments: ARC10071623F_KENT'S OIL SERVICE.pdf; KENT'S OIL SERVICE LTR..pdf <br /> Good Afternoon Garrett, <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 mg/kg. <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. 775-224-9607 1 F. 916.786.0366 <br /> www.arcadis-us.com <br /> ARCADIS, Imagine the result <br /> Please consider the environment before printing this email. <br /> NOTICE: This e-mail and any files transmitted with it are the property of ARCADIS U.S., Inc. and its affiliates. All <br /> rights, including without limitation copyright, are reserved. The proprietary information contained in this e-mail <br /> message, and any files transmitted with it, is intended for the use of the recipient(s) named above. If the reader of <br /> this e-mail is not the intended recipient, you are hereby notified that you have received this e-mail in error and that <br /> any review, distribution or copying of this e-mail or any files transmitted with it is strictly prohibited. If you have <br /> received this e-mail in error, please notify the sender immediately and delete the original message and any files <br /> transmitted. The unauthorized use of this e-mail or any files transmitted with it is prohibited and disclaimed by <br /> ARCADIS U.S., Inc. and its affiliates. Nothing herein is intended to constitute the offering or performance of <br /> services where otherwise restricted by law. <br /> 7/19/2010 <br />