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1 <br /> �.�Ft: .rl s: t��Y1 r`tl. f E-A <br /> 00 A UG 2 1 59 <br /> August 18, 2000 <br /> Ms. Lori Duncan <br /> San Joaquin County Public Health Services <br /> 304 East Weber Avenue, Third Floor <br /> Stockton, California 95202 <br /> Re: Well Destruction Work Plan <br /> City of Stockton,Redevelopment Agency Property <br /> 141 North El Dorado Street <br /> Stockton, California <br /> SAP Code 118532 <br /> Incident No. 97130156 <br /> Dear Ms. Duncan: <br /> Cambria Environmental Technology, Inc. (Cambria) prepared this document on behalf of <br /> Equiva Services LLC (Equiva) in response to San Joaquin County Public Health Service's <br /> (SJCPHS's) August 1, 2000 letter requesting a work pian for well destruction and well <br /> reinstallation at the above referenced site. <br /> �. The subject site is a former Shell service station on property now owned by the City of <br /> Stockton Redevelopment Agency (CSRA). The subject site is part of a larger group of <br /> properties know as the Weber Block. The CSRA is going to construct a pedestrian plaza on <br /> the Weber Block, which involves excavating two to four feet below grade (fbg) across the <br /> entire Weber Block in preparation for regrading the area. The wells currently on the subject <br /> site need to be properly destroyed prior to the start of grading activities. <br /> Cambria has prepared a work plan for the proper destruction of all site monitoring wells, <br /> vapor extraction wells, and groundwater extraction wells. This work plan is presented later in <br /> this document. <br /> In addition to destroying site wells, SJCPHS requested we submit a work plan for reinstallation <br /> of wells to monitor MTBE at this site. A work plan for reinstallation of monitoring wells at <br /> Oakland, CA the subject site is not included as part of this document for several reasons. <br /> Sonoma, CA <br /> Portland, OR First, it is Equiva's opinion that this environmental case for the former Shell site should be <br /> Seattle, WA <br /> closed. There are several reasons for this. There has been extensive investigation and <br /> Cambria remediation work performed at the site. Hydrocarbon levels in groundwater have been low or <br /> Environmental below detection limits for several years at this site. And it is Equiva's position that MTBE <br /> Technology,Inc. <br /> did not come from the former Shell station. <br /> 270 Perkins Street <br /> P.O.Box 259 <br /> Sonoma,CA 95476 <br /> Tel(707)935-6850 <br /> Fax(7o7)935-6649 <br />