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WZI Inc. <br /> 21030 North Davis Road <br /> Lodi, California 95242 <br /> (209) 369-9421 <br /> Ms. Linda Tourquet <br /> San Joaquin County Environmental Health <br /> P.O. Box 388 <br /> Stockton, California 95201-0388 <br /> Re: Proposed Site Assessment Geoprobe Soil Gas Sampling at <br /> 3 properties in Lodi, California <br /> Dear Ms. Tourquet: <br /> WZI Inc. has been requested to assist several property owners in evaluating subsurface <br /> conditions beneath their properties. These properties are owned by the following businesses in <br /> Lodi: <br /> 1. Lustre-Cal Nameplate- 110 East Turner Road <br /> 2. Ackel Properties- 110 East Turner Road <br /> 3. Guild Cleaners- 17 South Church Street <br /> Each of these properties have been and currently are involved in ongoing discussions and <br /> investigations with the California Environmental Protection Agency- Department of Toxic <br /> Substances Control (DTSC) and California Regional Water Quality Control Board- Central <br /> Valley Region staffs regarding potential past site history of volatile organic compounds (VOC's) <br /> on each of the properties. As part of the ongoing effort to obtain a settlement between the <br /> regulatory agencies and the above mentioned Responsible Parties (RP), a limited element of <br /> self-directed site assessment work is being undertaken by each of the RP's. This work is to <br /> assist the RP's in deciding how to approach making commitments to the regulatory agencies for <br /> a final settlement. This work will not be conducted under an approved workplan from either <br /> DTSC or CRWQCB-CVR staff. It is anticipated that the results of this work will be provided to <br /> the regulatory agencies on an immediate basis. <br /> Soil gas data is planned to be collected using a Geoprobe instrument that will be provided by <br /> Einerson,Fowler, and Watson, Consulting Hydrogeologists. Soil samples and soil gas samples <br /> will be collected at the three sites using the maps attached to this proposed workplan letter. <br /> The holes will be advanced to the first groundwater encountered. Soil samples and soil gas <br /> samples will be collected and analyzed by an onsite mobile laboratory. <br />