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PUBLIC i-4EALTH SERA CE <br /> N <br /> 0.... .. C <br />� SAN JOAQUIN COUNTY <br /> 2:' s <br /> ENVIRONMENTAL HEALTH DIVISION <br /> Ernest M. Fujimoto, M. D., M.P.H., Acting Health Officer <br /> 304 East Weber Avenue, Third Floor • Stockton, CA 95202 <br /> I <br /> 209/468-3420 � ;; t17 `��0f 1 <br /> MIKE KARVELOT <br /> f <br /> QUIK STOP MARKETS INC APR Q!111 199" <br /> 4567 ENTERPRISE STREET <br /> FREMONT CA 94538 <br /> o <br /> RE: QUIK STOP MARKET#132 SITE CODE: 1130 <br /> 3555 WEST HAMMER LANE <br /> STOCKTON CA <br /> San Joaquin County Public Health Services, Environmental Health Division (PHS-EHD) has completed the <br /> review of the quarterly report for the first quarter of 1997 and has the following comments for your <br /> consideration. <br /> h j <br /> The limited groundwater pumping performed at the site in the past has appeared to mitigate the <br /> hydrocarbon impact to groundwater, as documented by years of analysis from site monitoring wells. The <br /> only remaining issue at this site is the methyl tertiary butyl ether(MTBE) currently being detected in <br /> monitoring well MW#5. However, concentrations of MTBE in this well have been declining since the <br /> monitoring for this constituent began in March of 1996. <br /> Therefore, PHS-EHD recommends the sampling of only monitoring well MW#5 for futuref quarterly t <br /> monitoring events. Should the declining trend of MTBE concentrations continue to be evidenced in this <br /> well, PHS-EHD will present this site for closure consideration to the Technical Review Committee. The <br /> Technical Review Committee consists of PHS-EHD staff, Central Valley Regional WaterlQuality Control <br /> Board staff, and three members representing the community. k <br /> I � <br /> If you have any questions or wish to discuss this'letter in more detail, please contact Linda Turkatte, <br /> Senior REHS, at(209)468-3441. <br /> Donna Heran, REHS, Director <br /> Environmental Health Division <br /> vAL <br /> Linda A. Turkatte, Senior REHS Margaretagono, REHS <br /> Site Mitigation Unit Supervisor <br /> LT <br /> c: CVRWQCB, Beth Thayer <br /> c: SMITH, Richard Garlow t <br /> t <br /> j <br /> A Division of San Joaquin County Health Care Services 1 <br /> 1 <br />