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PUBLIC HeALTH SERVIdS <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 <br /> 2091468-3420. Fff)y <br /> (C'/F� D <br /> RICHARD MOE AND LARRY McLEAN <br /> M & M AUTOMOTIVE <br /> 1 <br /> 60 E. TENTH ST. DEC 2 a Z99g <br /> TRACY, CA 95376 <br /> RE: M and M Automotive SITE CODE: 2554 <br /> 60 E. Tenth St. <br /> Tracy, CA 95.376 <br /> San Joaquin County Public Health Services Environmental Health Division (PHSIEHD) has <br /> reviewed the Quarterly Monitoring Report (QMR) dated November 1, 1999-prepared-by Wright <br /> Environmental Services(WES), Inc., for the above referenced site. A soil sample collected from <br /> the tank pit over-excavation on April 36, 1999, evidenced contamination at 12.5 feet below <br /> surface grade (bsg). This was the deepest soil sample.analyzed at the site. The vertical extent of <br /> soil contamination has not been determined- Groundwater samples collected from Monitoring <br /> Well #1 (MW1) on March 29, 1999 evidenced contamination (prior to this MW's destruction in <br /> 1999). MWi was screened from 7 to 17 feet bsg. Groundwater contaminant concentrations in <br /> the source area at this depth have not been confirmed. Further investigation to determine the <br /> vertical extent of soil and water contamination is necessary. <br /> Submit a work plan to define the vertical extent of soil and water contamination at this site to <br /> PHS/EHD by February 14, 2000. It may be necessary to install a replacement MW in the source <br /> area to confirm groundwater contaminant concentrations. <br /> Continue quarterly monitoring for all contaminants at this site except Halogenated Volatile <br /> Organic Compounds. Tabulate all Oxygenate analytical sample results along with BTEX and <br /> TPH results and present the information in the next QMR. <br /> Notify PHS/EHD 48 hours prior to sampling events. Contact Carol Oz, REHS; at (209) 468- <br /> 3440 if you have further questions. <br /> Donna Heran, REHS, Director <br /> Environmental Health Division <br /> Carol Oz, Senior REHS Margare Lagorio, REHS <br /> Site Mitigation Unit Supervisor <br /> cc: RWQCB, Central Valley Region-Marty Hartzell <br /> Wright Environmental Services, Inc.-John Lynch <br /> P <br /> A Division of San Joaquin County Health Care Services <br /> I. <br />