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ENVIRONMENTAL HEALTH DEPARTMENT 1 <br /> SAN JOAQ IN COUNTY <br /> Unit Supervisors <br /> Donna K.Heran,R.E.H.S. <br /> Director <br /> 304 East Weber venue Third Floor Carl Borgman,R.E.H.S. <br /> Mike Huggins,R.E.H.S.,R.D.I. <br /> • Al Olsen,R.E.H.S. Stockton, California 95202-2708 Douglas W.Wilson,R.E.H.S. <br /> c4 +i oRa�PProgram Manager Telephone: 209) 468-3420 Margaret Lagorio,R.E.H.S, <br /> Laurie A.Cotulla,R.E.H.S. <br /> Program Manager Fax: (20 9) 464-0138 Robert McClellon,R.E.H.S. <br /> Mark Barcellos,R.E.H,S. <br /> LAURINO AND MARY-LOU PONTES APR 17 2003 <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 Environmental Health Depar nt (EHD) discussed the status of the <br /> above-referenced site with Central Valley Regional Water Quality Control Board (RWQCB) <br /> on April 16,2003. Analytical results of the groundwater samples from all three monitoring <br /> wells at the site over the last four quarters were non-detect at or above the method detection <br /> limits,with the exception of MW-2 in August 2002, which had a concentration of 0.60 <br /> micrograms per liter (µg/1) of methyl butyl tert ether (MTBE). Based on previous <br /> investigations,Advanced GeoEnvironmental, Inc. (AGE) calculated a mass of 0.37 gallons of <br /> gasoline remaining in the soil. <br /> RWQCB agreed with EHD that the site is a candidate for closure status pending receipt of a <br /> 500-foot radius door-to-door wellreceptor survey, and the submission of a certification of a <br /> list of all record fee tide owners. Sensitive Receptor Su y, dated January 25, 2002,prepared by <br /> AGE, reported three municipal wells, but did not re ort any private wells in the area of the <br /> site. Due to the presence of numerous residential units in the area, a door-to-door survey <br /> for domestic wells is required before a "no further action" status can be given. Submit this <br /> well receptor survey and a certification of a list of all record fee title owners to EHD by]une <br /> 4, 2003. <br /> Please feel free to contact Jeffrey Wong at (209) 468-0335 if you have any questions. <br /> Donna Heran, RENS,Director <br /> Environmental Health Division <br /> JifreyyyWortg, , Senior REHS Nuel C. Henderson,Jr., RG <br /> LOP/Site Mitigation Unit N LOP/Site Mitigation Unit N <br /> c: RWQCB, Central Valley Region—James L. L. Barton, RG <br /> c: AGE—Brian Millman <br />