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PUBLIC HEALTH S-EkVICES <br /> SAN JOAQUIN COUNTY <br /> ENVIRONMENTAL HEAErH DIVISION <br /> - Karen Furst, M.D., M.P.H., Health Officer <br /> 304 East Weber Avenue,Third Floor • Stockton, CA 95202 ;rFOR <br /> 2091468-342 <br /> OCT 0 3 2009 <br /> LAURINO AND MARY-LOU PONTES <br /> PONTES QUICKI-KLEEN CAR WASH <br /> 707 E YOSEMITE AVE <br /> MANTECA CA 95336 <br /> RE: PONTES QUICKI-KLEEN CAR WASH Site Code: 500097 <br /> 707 EAST YOSEMITE <br /> MANTECA CA 95336 <br /> San Joaquin County Public Health Services Environmental Health Division (PHS/EHD) <br /> staff has reviewed Prdirr&nq Inu stigaion and E vdua - Report(PIER) dated March 19, 2001 <br /> prepared by Advanced GeoEnvironmental, Inc. (AGE). Analytical results of the grab <br /> groundwater samples collected from boring P-9 were 440 micrograms per liter(µg/1) of <br /> methyl tert butyl ether, 3.2 µg/l of benzene, 120 µg 1 of total petroleum hydrocarbons as <br /> gasoline PH-g), and 170 pg/l of total petroleum hydrocarbons as diesel (TPH d). <br /> Additional investigation of the extent of the contartLation in groundwater is required. <br /> PHS/EHD agrees with PIE Xs recommendation ol installing additional soil borings and <br /> monitoring wells to assess the vertical and lateral extent of the contamination in soil and <br /> groundwater. Submit a work plan that will define the extent of the contamination to <br /> PHS/EHD by November 15,2001. <br /> Please feel free to contact Jeffrey Wong at (209)468-0335 if you have any questions. <br /> Donna Heran,REHS,Director <br /> Environmental Healt <br /> h ivision <br /> (71' W <br /> V' <br /> Jeffrey Wong , Senior RENS 2rgareg gono,RE <br /> LOP/Site Mitigation Unit IV Supervisor <br /> c: RWQCB, Central Valley Region-Marty Hartzell <br /> c: AGE - Brian NOrrian <br /> A Division of San Joaquin Counry Health Care Services <br />