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PUBLIC HEALTH SERVICES <br /> SAN JOAQUIN COUNTY <br /> JOGI KHANNA 1LD.,M.P.H. E <br /> Heaich Officer <br /> P.O. Box 2009 • (1601 East Hazelton Avenue) Stockton,California 95201 F o a <br /> (209)468-3400 <br /> cc <br /> BOB ROBINSON <br /> DOANE PRODUCTS COMPANY <br /> P O BOX 879 DEC 1 6 1992 <br /> JOPLIN MO 64802 <br /> RE: Doane Products STTE CODE: 2441 <br /> 450 East Grant Line Road <br /> Tracy CA 95376 j <br /> i <br /> San Joaquin County Public Health Services, Environmental Health Division (PHS/EHD) has completed <br /> review of the "Soil and Groundwater Investigation Report" dated November 12, 1992 and the "Disposal of <br /> Stockpiled Soils" report dated December 2, 1992, both submittals were prepared by'Brunsing.Associates. <br /> PHS/EHD has the following comments for your consideration. <br /> { <br /> Stockpiled soil which resulted from the re-excavation of soil contamination associated with the two { <br /> 10,000 gallon diesel tanks was adequately characterized and was disposed of at Browning-Ferris <br /> Industries (BFI) Vasco Road Sanitary Landfill in Livermore CA. <br /> In order to determine the extent of residual soil contamination, additional investigation was performed. ! <br /> Field work commenced on September 29, 1992 and consisted of the installation of four soil borings. <br /> Additionally, one monitoring well was installed to determine and confirm groundwater gradient. No: <br /> contamination was detected in soil samples. The initial sample results collected from monitoring well, <br /> MW2 and quarterly monitoring of MW1 and P-2 did not detect groundwater contamination. Since a <br /> minimum of two rounds of sampling is necessary for confirmation of water sample results, an additional i <br /> round of groundwater sampling will be necessary. If water sample results are non detect for this <br /> confirmation sampling PHS/EHD will consider this site for closure. <br /> If you have any comments or questions or to schedule the next quarterly sampling, please contact Mary <br /> Meays, REHS, of my staff at (209) 468-0337. <br /> 1 <br /> Jogi Khanna, M. H. <br /> Health Office <br /> Ladne A. Cotulla, REHS, Program Manager <br /> �environmental Health Division <br /> LArvl M <br /> C'. Elizabeth Thayer, CVRWQCB <br /> c: Bob Fagundes, Doane Products, 450 East Grant Line Road, Tracy <br /> c: Michael E. Velzy, Brunsing Associates, Inc. <br /> A DivWon of San Joaquin County Health Care secoces <br />