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• <br /> Oakland Cter <br /> 50012th Street Woodwaru-Clyde Consultants <br /> Suite 100 <br /> Oakland,CA 94607-4014 <br /> (415)893-3600 _ <br /> April 7, 1989 <br /> 90189K U <br /> APR 141989 <br /> Anthony J. Landis ENVIRONMENTAL HEALTH <br /> Chief Site Mitigation Unit PERMIT/SERVICES <br /> Department of Health Services <br /> Toxic Substances Control Division <br /> Northern California Section <br /> 4250 Power Inn Road <br /> Sacramento, CA 95826 <br /> Re: Docket HSA, Pos } end ater Monitoring Program, Dated <br /> 29 April 1988,: tin Former Field Avenue Annex <br /> Dear Mr. Landis : <br /> Pursuant to the referenced agreement, Woodward-Clyde Consultants has <br /> completed groundwater monitoring for the fourth quarter. As specifiF <br /> in the agreement, groundwater samples were taken from three monitori <br /> wells designated as MW-1, MW-3, and MW-4. A travel blank designated <br /> MW-12 and a blind duplicate sample designated MW-13 were also submitted <br /> for analysis. All of the samples were analyzed at a Department of <br /> Health Services-certified laboratory for the following parameters : <br /> Conductivity, pH, Total Dissolved Solids, Total Copper, Total Nickel , <br /> Total Lead and Hexavalent Chromium. The three sampled wells were also <br /> sounded to determine groundwater elevation. <br /> The groundwater samples were collected on February 28, 1989 and taken to <br /> California Analytical Laboratories in West Sacramento. Appropriate <br /> chain of custody was maintained. A summary of the results is presented <br /> in Table 1, and a copy of the laboratory report is attached. <br /> Should you have any questions , please call me. <br /> Sincerely, / <br /> Christer L. Vais <br /> Senior Project Engineer <br /> CLV/sst <br /> COT/90189K-L4 <br /> Enclosure <br /> cc: Jim O' Connor - LIKA Corp. <br /> Jim Sheets - Tandy <br /> James Jaffe - Jaffe, Trutanich, Scatena and Blum 1 <br /> Ron Valinoti - San Joaquin Local Health District <br /> Antonia Vorster - RWQCB <br /> Lee Taubeneck - DHS <br /> Consulting Engineers,Geologists <br /> and Environmental Scientists <br /> Offices in Other Principal Cities _ <br />