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• RESNA YV ATERWOR: CORP <br /> INDUSTRIES <br /> f •. <br /> January 3, 1991 <br /> Mr. Steve Schneider <br /> San Joaquin County Public Health Services <br /> Environmental Health Services <br /> Environmental Health Division <br /> P.O. Box 2009 <br /> Stockton, CA 95201. <br /> Re: J.B. Terminal Company, 6700 Grantline Road, Tracy, <br /> California 95576 <br /> On December 10, 1990, WaterWork resampled well MW1 as recommended <br /> in the Problem Assessment Report for the subject project dated <br /> November 15, 1990. The samples were collected, transported, and <br /> analyzed pursuant to WaterWork' s Quality Assurance/Quality Con- <br /> trol Plan. Samples were stored in a secure refrigerator until <br /> transported by courier in an ice chest with frozen blue ice to <br /> the laboratory. Sample temperature was maintained between 00 and <br /> 4°C at all times. A copy of the QA/OC plan is included in At- <br /> tachment 1. <br /> The laboratory results showed non-detected for ali constituents <br /> analyzed. Attachment 2 contains the laboratory data sheet and <br /> chain-of-custody. The difference in results may reflect incom- <br /> plete well development, possibly a declining water table, or <br /> normal variation in groundwater concentrations. <br /> WaterWork proposes continued monitoring and sampling on a quar- <br /> terly basis. The next scheduled sampling event would be early <br /> March, 1991 . We will notify you in advance when sampling and <br /> monitoring is scheduled. <br /> 1710 NtAIN STREET . ESCALON CA 95320 . (209)838-3507 <br /> 2340-A WAL';H AVENUE 9 SANTA CLAR4 CA 95051 a (408)496-1249 <br />