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California Regional Water Quality Control Board <br /> Central Valley Region <br /> �i Gston H.Hickoz - Robert Schneider,Chair Gray Davis <br /> Secretaryfor -Sacramento Main Office Governor <br /> Environmental Intemet Address: http•✓/www.swmb.ca.gDvlrwgcb5 <br /> Protection 3443 Routier Road,Suite A,Sacramento,California 95827-3003 <br /> Phone(916)255-3000•FAX(916)255-3015 _ <br /> 28 August 2003 <br /> Mr. Andrew Smith ���� <br /> Herman &Helen's Marina <br /> 15135 Eight Mile Road <br /> Stockton CA 95219 <br /> REVIEW OF WORK PLAN ADDENDUM,HERMAN&HELEN'S MARINA,VENICE <br /> ISLAND FERRY, SAN TOAQUIN COUNTY <br /> We have reviewed the 14 August 2003 Additional Site Assessment Work Plan—Revised August <br /> 2003 (Revised Work Plan) submitted by Advanced GeoEnvironmental, Inc. on behalf of Herman <br /> &Helen's Marina(H&H Marina) at 15135 Eight Mile Road in Stockton(site). The Revised <br /> Work Plan addresses six of the seven comments in Regional Board staff's 16 July 2003 letter <br /> regarding the 19 June 2003 Additional Site Assessment Work Plan (Work Plan). The Work Plan <br /> was submitted in response to Regional Board staff's 21 April 2003 letter,which requested a work <br /> plan to "delineate the lateral and vertical extent of pollution and to determine the source of <br /> pollution near MW-6 as well as the source for the elevated methyl tertiary butyl ether (MTBE) <br /> concentrations on site." The Revised Work Plan still proposes only four borings to collect soil <br /> and grab groundwater samples. <br /> H&H Marina needs to propose a groundwater investigation program and location of monitoring <br /> wells that will delineate the lateral extent of petroleum hydrocarbon pollution in both the shallow <br /> and deeper water bearing zones. The Revised Work Plan does not include any groundwater <br /> samples from the deeper water bearing zone. The following areas still need delineation: <br /> • Total petroleum hydrocarbons as gasoline is not defined north of MW-5,west of MW-4, <br /> or south of MW-2 in the shallow water bearing zone, is not defined around MW-6 in the <br /> deeper water bearing zone, and is not vertically defined beyond 60 feet below ground <br /> surface(bgs). <br /> • Benzene is not defined in the deeper water bearing zone around MW-6 or vertically <br /> beyond 60 feet bgs. <br /> • MTBE is not defined north of MW-5, west of MW-4, or south of MW-2 in the shallow <br /> water bearing zone. MTBE is discharging into the ditch east of the site. MTBE is not <br /> defined in the deeper water bearing zone around MW-6, and is not vertically defined <br /> beyond 60 feet bgs. <br /> i' <br /> California Environmental Protection Agency <br /> cRecycled Paper <br /> The etmgy challenge facing California is real. Every Californian needs to tale immediate action to reduce energy consumption. <br /> For a list of simple ways you can reduce demand and cut your energy costs,see our Web-site at http•A/ .swreb.ca.gov/twgcM <br />