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- - - <br /> Ile <br /> CLEARWATEIN, <br /> -i G 1Z 0 U P <br /> Ms. Lori Duncan Environmental Servicesa2.004 <br /> San Joaquin County Public Health Services � i� ttl�rf4,i--,� <br /> -1 Environmental Health Division <br /> 304 East Weber Avenue, Third Floor 0 E�� DC3 <br /> Stockton, CA 95202 1 <br /> Re: iSOC System Installation & Start-up\ <br /> "=3 Barnes Trucking Facility, 1817 South Frd no Avenue, Stockton, California <br /> Clearwater Project No. ZB17E <br /> San Joaquin County Site Code No. 2506 <br /> Dear Ms. Duncan: <br /> ` - This report was prepared by Clearwater Group (Clearwater) on behalf of Barnes Trucking, Inc. <br /> and presents explanation of the recent installation and start-up of the in-situ Submerged Oxygen <br /> Curtain (iSOC) enhanced bio-remediation system at the property located at 1817 South Fresno <br /> Avenue in Stockton, California (the "site" — Refer to Figures 1 and 2 for illustrations of the site <br /> location, and layout). Preparation of a Workplan was requested by the San Joaquin County <br /> LYn' Environmental Health Department (SJCEHD) in a letter dated March 2, 2004. Clearwater's <br /> evaluation of remedial action alternatives, described in the Corrective Action Plan (CAP) of <br /> November 2002, and CAP Addendum letter dated December 31, 2003, identified iSOC oxygen <br /> infusion as the most feasible alternative for the site. In their March 2, 2004 letter, SJCEHD <br /> indicated that they, as well as the Underground Storage Tank Cleanup Fund (USTCF) would be <br /> "receptive" to the proposed iSOC approach, and that they would allow implementation thereof <br /> under the condition that existing monitoring wells not be used for remediation purposes, and that <br /> new "injection" wells be installed for deployment of iSOC equipment, and for facilitation of <br /> potential nutrient Injections. } <br /> 1.2 Site Description <br /> The subject facility, located near the intersection of South Fresno Ave and Charter Way (State <br /> Highway 4), consists of a vehicle parking area, a building that is currently used as a Barnes <br /> Trucking office and a building used as a repair/ maintenance shop (Figure 2). The property is <br /> ZB178E iSOC System Instal lation/Start-u 1 24 Q4 <br /> 229 Tewksbury Avenue ® Point Ric imond,California 94801 ® Telephone: 510-307-9943 ® Fax: 51 � -2$23 <br />