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0 <br />January 12, 2001 <br />Project 077 41991 043 <br />Mr Richard C Prima, Jr <br />City of Lodi Public Works Director <br />221 West Pine Street <br />Lodi, CA <br />RE Discharge Report for December 2000 <br />Former Chevron #9-5775 <br />301 West Kettleman Lane <br />Lodi, California <br />Cleanup and Abatement Order No 5-00-704 <br />Wastewater Discharge Permit #295 <br />Dear Mr Prima <br />SECOR <br />hilel nalional lliwt poi alecl <br />JAN 16 2001 <br />ENVIRONMENT HEALTH <br />PERMIT/SERVICES <br />This letter, prepared by SECOR International Incorporated (SECOR) on behalf of <br />Chevron Products Company (Chevron), presents operating data for the groundwater <br />extraction (GWE) system at the site referenced above (Figures i and 2) Chevron <br />discharges treated groundwater at the subject site under City of Lodi Wastewater <br />Discharge Permit 4295 <br />The GWE system extracts groundwater from site wells EX -1, MW-14/EX-2, and EX -3 <br />Extraction and treatment of groundwater from EX -1, EX-2/MW-14, and EX -3 was <br />initiated on July 3, September 22, and November 28, 2000, respectively The Extracted <br />groundwater is routed through a particulate filter, then three 2,000 -pound liquid phase <br />activated carbon vessels plumbed in series A treatment system schematic is shown on <br />Figure 3 <br />Summary of Violations <br />There have been no violations of the discharge limitations during the December <br />discharge period Concentrations of petroleum hydrocarbons and fuel oxygenates were <br />reported as below detection limits in the effluent samples collected during this period <br />Summary of GWE System Operation <br />Samples were collected form the influent port, midpoint 1 (between the first and second <br />carbon vessels), midpoint 2 (between the second and third carbon vessels), and the <br />effluent port on December 6, 13, 20, and 27, 2000 Concentrations of petroleum <br />hydrocarbons and fuel oxygenates were reported as below detection limits in effluent <br />5017 Ail1oi c kuru( %it04 100 Raitt ho (oi doi a ( 1 95070 916 H6 / 0400 910 S01 0 i 10 1 ai ii it u )ccoi com <br />