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VIS OPQUiN C0 <br /> LTK SER <br /> n 1 li <br /> SAN IOAQUIN COUNTY <br /> ENVIRONMENTAL HEALTH DIVISION <br /> • C 1p <br /> PH., Health Officer 9�1'FOR� <br /> Karen Furst, M-D*, M CA 95202 <br /> 304 East Weber Avenue, Third Floor • Stockton, <br /> 209/468-3420 <br /> JUN 18 200, <br /> EDWARD RALSTON <br /> TOSCO MARKETING COMPANY <br /> 1380 LEAD HILL 95661 <br /> DSUITE 120 <br /> ROSEVILLE 61 <br /> SITE CODE: 1217123 <br /> RE: TOSCO/UNOCAL <br /> 4707 Pacific Avenue <br /> Stockton, CA <br /> San Joaquin County Public Health Services, Environmental Health Division <br /> (PHS/EHD) has reviewed the "Groundwater Monitoring and Sampling Reports" <br /> prepared by Gettler— Ryan Inc. for the above referenced site. Concentrations of <br /> MTBE appear to be increasing in MW 15 and concentrations of TPH as gasoline <br /> and BTEX do not appear to be decreasing in VW7 or VW4• <br /> In a letter dated February 24, 2000, to UNOCAL, of which you were sent a copy, <br /> PHS/EHD requested that remedial options for the groundwater contamination <br /> evidenced in VW7 and VW3 be evaluated. It appears that remedial alternatives <br /> to restore the potential beneficial use groundwater in this area still need to be <br /> evaluated. <br /> Submit a work plan to conduct studies of remedial alternatives to PHS/EHD by <br /> August 17, 2001. <br /> If you have any questions contact me at (209) 468-3449. <br /> Donna Heran, REHS, Director <br /> Environmental Health Division <br /> --,rke^TD <br /> Margaret Lagorio, Supervising REHS <br /> Unit IV <br /> c: SJCADA — David Irey <br /> UNOCAL— Peter Niemiec <br /> Dayton Hudson Corp— David Luick <br /> Gettler Ryan — Deanna Harding <br /> CVRWOOB —Marty Hartzell <br />