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• California Regional Water Quality Control Board ' Central Valley Region Robert Schneider,Chair Winston H.Hickox Gray Davis Secretaryfor Sacramento Main Office Governor Environmental Internet Address: http://www.swrcb.ca.gov/mgcb5 Protection 3443 Routier Road,Suite A,Sacramento,California 95827-3003 Phone(916)255-3000•FAX(916)255-3015 5 June 2001 HEALjH p nN ('ES Mr. Andrew Smith Herman &Helen's Marina 15135 Eight Mile Road Stockton CA 95219 MONITORING AND REPORTING PROGRAM NO. 5-01-835, WORK PLAN APPROVAL, HERMAN & HELEN'S MARINA, VENICE ISLAND FERRY, SAN JOAQUIN COUNTY We have reviewed the following documents prepared by Condor Earth Technologies, Inc. (Condor) on behalf of Herman &Helen's Marina at the Venice Island Ferry in Stockton (site): • 7 May 2001 comment letter; • 3 May 2001 Quarterly Groundwater Monitoring Report First Quarter, 2001 (Report); and • 7 May 2001 Work Plan Additional Groundwater Investigation (Work Pian). The letter contains comments on the 28 March 2001 draft monitoring and reporting program (MRP), and a request for reconsideration of abandoning monitoring well MW-1 under the Underground Storage Tank Cleanup Fund for cost reimbursement. In reference to the draft MRP, Condor proposes method reporting limits for ethanol and tertiary butyl alcohol be changed from 0.5 parts per billion (ppb) to five ppb and requests the total petroleum hydrocarbon analysis specify gasoline. We concur with the proposed changes. Enclosed is MRP No. 5-01-835, which is now in effect and should be implemented at the site during the next quarterly monitoring event. Condor justifies the abandonment of MW-1, since MW-4 represents upgradient concentrations from the aboveground storage tanks (AGTs). Condor states that MW-1 detections of methyl tertiary butyl ether are indicative of concentrations from Little Connection Slough as opposed to upgradient concentrations from the AGTs and that there is a substantial difference in the topographical and hydraulic slope between MW-I and MW-4. We concur with the request to abandon MW-1 based on the information provided in the letter as well as the observations made during the,16 May 2001 site walk with you, Condor representatives, and Ms. Devra Lewis of my staff. California Environmental Protection Agency 0 Recycled Paper The energy challenge facing California is real. Every Californian needs to take immediate action to reduce energy consumption. For a list of simple ways you can reduce demand and cut your energy costs,see our Web-site at http://www.swrcb.ca.gov/mgcb5