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s <br /> ENVIRONMENTAL HEALTH .DEPARTMENT <br /> SAN JOAQUIN COUNTY <br /> A� <br /> ' •.z� Danns K.Heran,RE.H.S. Unit Supervisors <br /> W: X Director 304 East Weber Avenue, Third Floor Carl Borgman,R.E.H.S. <br /> Al Olsen,R.E.H.S. Stockton, California 95202-2708 Mike Huggins,R.E.H.S.,R.D.I. <br /> Douglas W.Wilson,RE.H.S. <br /> Program Manager <br /> Laurie A.Catulla,RE.H.S. Telephone: (209)468-3420 Margaret Lagorio,R.E.H.S. <br /> Program Manager Fax: (209)464-0138 Robert McClelion,R.E.H.S. <br /> Mark Barcellos,R.E.H.S. <br /> MICHAEL SOUZA <br /> APR 18 2002 <br /> SOUZA 11 LLC <br /> 105 E TENTH ST <br /> TRACY CA 95376 <br /> RE: SOUZA II LLC Site Code: 1283 <br /> 612 W ELEVENTH ST <br /> TRACY,CA 95367 <br /> San Joaquin County Environmental Health Department(EHD)has reviewed"Groundwater Monitoring <br /> Well installation Report,"dated 14 February 2002,prepared by Ground Zero Analysis,Inc.on your behalf. <br /> Analysis of soil taken during monitoring well installation shows that the vertical extent of soil <br /> contamination has been defined by soil samples at 20 and 25 feet below surface grade(bsg). The lateral <br /> extent of soil contamination remains undefined by soil samples taken at 10 feet bsg in MW-1 and at 15 feet <br /> bsg from MW-3. The lateral and vertical extent of groundwater contamination remains undefined by this <br /> investigation. <br /> A work plan to define the lateral extent of soil,lateral and vertical extent of water contamination,and a <br /> sensitive receptor gnd conduit survey should be submitted to EHD by,June 17,2002. Please contact Sam <br /> Savig,EHS at(209)468-3453 if you have questions regarding this letter. <br /> Donna Heran,REHS,Director <br /> Environmental Health Department <br /> Sam Savig,EHS Nuel Henderson,RG <br /> Site Mitigation Unit IV Site Mitigation/Unit IV <br /> cc: Marty Hartzell-CVRWQCB <br /> John Lane-Ground Zero Analysis,Inc. <br />