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• • FILE COPY <br /> PUBLIC HEALTH SERVICES <br /> SAN JOAQUIN COUNTY <br /> ENVIRONMENTAL HEALTH DIVISION <br /> Karen Furst, M.D., M.P.H., Health Officer ;. <br /> 304 East Weber Avenue, Third Floor • Stockton, CA 95202 4` -gbw <br /> 209/468-3420 <br /> AN p 5 2001 <br /> MARTY HARTZELL <br /> CENTRAL VALLEY <br /> REGIONAL WATER QUALITY CONTROL BOARD <br /> 3443 ROUTIER ROAD SUITE A <br /> SACRAMENTO CA 95827-3003 <br /> RE: Herman & Helen's Marina SITE CODE: 1565 <br /> 15135 Eight Mile Rd. <br /> Stockton, CA <br /> San Joaquin County Public Health Services, Environmental Health Division (PHS/EHD) has <br /> reviewed the information gathered to date on the contamination at the above referenced site. <br /> Attached is a chronology of the site work performed and reports submitted. <br /> Concentrations of MTBE in the groundwater samples from monitoring wells 2 and 3 which are <br /> downgradient of the above ground storage tanks currently operating at this site have increased <br /> since the first samples were collected in September 1997. MTBE is not being detected in the <br /> groundwater samples from monitoring well 4 which is within a few feet and downgradient of the <br /> former location of the underground storage tanks that were removed in October 1991. Low levels <br /> of BTEX have been evidenced in groundwater samples from monitoring well 4. However, the <br /> contamination of greatest concern at the site is the MTBE contamination seen in monitoring wells <br /> 2 and 3. <br /> PHS/EHD is removing this site from the Local Oversight Program and referring it to your agency <br /> for oversight because the site information indicates that the source of the contamination of <br /> greatest concern, MTBE, is the above ground tank system for which the Regional Water Quality <br /> Control Board has regulatory authority. <br /> If you have any questions contact me at(209)468-3449. <br /> Donna Heran, REHS, Director <br /> Environmental Health Division <br /> Margaret Lagorio, Supervising REHS <br /> Unit IV/LOP <br /> Enc. <br /> C: CVRWQCB-Wendy Cohen <br /> Herman & Helen's Marina-Dave Smith w/o Enc. <br /> Delta Farms Reclamation District-Alan Richard Coon w/o Enc. <br /> Condor Earth Technologies-Don Kresse w/o Enc. <br /> SW RCB(LOP)-Lori Casias w/o Enc. <br /> SWRCB (Cleanup Fund)-Alan Patton <br /> A Division of San Joaquin County Health Care Services <br />