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y0 „ <br /> California Regional Water Quality Control Board <br /> Central Valley Region *5 <br /> an H Hicicox <br /> Steven T Butler, Chair Gray Davis <br /> � <br /> ecretaryfor Sacramento Main Office Governor <br /> Environmental Internet Address http/lwwwsv.rrcbmgov/rwqcb:5 <br /> Protection 3443 Routier Road,Suitc A,Sacramento,California 95827-3003 <br /> Phone(916)255-3000•FAX(916)255-3015 <br /> 5 October 2000 <br /> Nil Cecil Dillon Mr Richard Bokides Mr Navtej Dhingsa <br /> Flag City Ltd Partnership Bokides Family Ltd Part First invest Flag City, Inc <br /> 1820 W Kettleman Lane, Suite E 6421 Capitol Avenue 5517 Coronawood Lane <br /> Lodi, CA 95242 Lodi, CA 95242 Carmichael, CA 95508 <br /> RE V EW RLYAL RE14EDIA l ION PLfsN <br /> .FLAG CITY CHEVRON, 5421 CAPITOL AVENUE, LORI, SAN JOA QUIN COUNTY <br /> CLEANUP AND ABATEMENT ORDER NO. 5-00-700 <br /> 1 reviewed your 31 August 2000 Final Remediation Plan (FRP) submitted by Advanced <br /> GeoEnvlroninental, Incorporated (AGE) for the subject site The FRP contains results of additional <br /> aquifer testing, a proposed groundwater remediation system design, and a schedule of activities to start <br /> groundwater extraction and treatment <br /> AGE completed a second aquifer test of the shallow and intermediate groundwater zones to design the <br /> . on-site groundwater extraction system Aquifer parameters and the radius of influence were calculated, <br /> and AGE proposes to install seven six-inch diameter extraction wells in the shallow groundwater zone <br /> screened from 10 to 35 feet The extraction wells will operate at 3 to 6 gallons per+minute for a total <br /> discharge rate of 25 gallons per minute (gpm) <br /> Extracted groundwater will be pumped through a series of carbon vessels to remove TPH and BTEX <br /> constituents, and then through a series of MtBE-specific carbon vessels to remove MtBE Treated <br /> groundwater will be discharged to a privately owned conveyance ditch south of the site under the <br /> General Order No 5-00-119 for Discharge to Surface Waters of Groundwater from Cleanup of <br /> Petroleum Fuel Pollution The groundwater cleanup is expected to take approximately 24 months <br /> In Section 4 2 of the FRP, AGE stated " cleanup goals approaching maximum contaminant levels <br /> (MCLS) are not realistic nor reasonable", and "We [AGE]propose to implement the pump and treat' <br /> system until the point of diminishing return is achieved, which is proposed as when the resulting <br /> concentrations vary less than 10%for six consecutive months " Your determination of site cleanup <br /> goals is not approved The unauthorized release of petroleum hydrocarbons at your site has degraded the <br /> beneficial uses of the groundwater and impacted a drinking water supply well Therefore, you are <br /> required to clean up the groundwater and restore the beneficial uses of the water Your cleanup goal for <br /> MtBE is based on the Secondary MCL for MtBE, which is 5 [tg/l If your proposed pump and treat <br /> system does not adequately meet this cleanup goal, you will be required to implement additional <br /> remedial actions to complete site cleanup In addition, destruction of Rocky's Domestic Well (RDW-1) <br /> or elimination of other sensitive receptors does not constitute a relaxation of the cleanup goals or <br /> alleviate the requirement to clean up groundwater contamination <br /> California Environmental Protection Agency <br /> CRecycled Paper <br />