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FROM,, : Ground Zero Analysis PHONE NO. 209 838 9883 Dec. 17 2003 05:46PM P2 GROUND ZERO ANALYSIS,INC. 1714 Main Street Escalon,California 95320.1927 Telephone:(209)838-9888 F'atsimile:(209)838-9883 December 17,2003 Mr.James L.L. Barton Regional Water Quality Control Board Central Valley Region 3443 Routier Road, Suite A Sacramento, CA 958273003 I Subject: Weekly Progress Update Speedy Foods, 8200 N. Highway 99, Stockton, CA Dear Mr.Barton: Pursuant to your letter dated December 3,2003,the following summarizes system operation during the period December 6.2003 through December 17,2003. The gaskets on the GAC manways were replaced on December 10, 2003 and the system passed the pressure test. The 200-pound polish QAC wait was plumbed into the system. I The system was re-started December 11, 2003 at approximately 11:15 a.m. Regional Board and San Joaquin County EHD staff were present during the re-start. Samples were collected from.Cl, C2, and the system effluent (EFF) at approximately 12:42 p.m and analyzed for VOCs. No VOCs were detected in the samples collected from C2 or the effluent. The sample collected from C1 contained 1.0 ppb benzene, which is likely a remnant from the system due to the previous break through of the carbon. Regional Board and EHD staff were notified via voicernail of the results. Mr. Barton of the Regional Board and John Lane of Ground Zero discussed the results and determiner)that the system should remain operationalpending re-sampling on December 15,2003. Samples collected from C1, C2, and EFF on December 15, 2003 were ND for all VOCs. Samples will again be collected from Cl, C2, and EFF on December 18, 2003 pursuant to Regional Board temporary requirements. Tables 1 and 2,attached, summarize treatment system flow and analytical data collected to date.