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i <br /> PUBLIC HEALTH SEFTICES =,0. �a= <br /> SAN JOAQUIN COUNTY <br /> JOGI KHANNA AD.M.P H i <br /> Health Officer <br /> P.O. Box 2009 • (1601 East Hazelton Avenue) • Stockton, California 95201 aer.6vt <br /> (209) 468-3400 <br /> TU BETH AND <br /> TAY ca Fly <br /> TUT'IZ,E AND TAYLOR <br /> 355 S GRAND AVENUE 40TH FLOOR <br /> LOS ANGELES CA 90071-3101 NOVO 1 1991 <br /> RE: Diamond Walnut Growers, Inc. IN REPLY REFER TO SITE CODE: 1781 <br /> 1050 Diamond St. <br /> Stockton, CA <br /> Pursuant to the Monday, October 21, 1991 conference call with you, Russell Juncal of RESNA Industries, <br /> and Diane Hinson of my staff, the following items will be addressed in a work plan and subsequent results <br /> will be included in a completed Problem Assessment Report (PAR): <br /> 1. Additional groundwater sampling will be performed by RESNA, Industries, for the purpose <br /> of gradient verification and confirmation of the sampling results dated August 5, 1991. <br /> 2. RESNA will research the status of the City of Stockton municipal wells (WP2 and WPI). <br /> 3 <br /> 3. We shall assume the concentrations of chromium in the vicinity of monitoring well are <br /> soluble concentrations exceeding those in Title 22. Therefore,comparison background data <br /> will be presented to aid in the determination of acceptable cleanup alternatives. <br /> The closure requirement for the underground storage tanks must be addressed. Charles Hunt of our <br /> Environmental Health UST Program is awaiting your closure plan. He may be reached at (209)468-3440 <br /> for specific details required for closure. <br /> The PAR will be due no later than December 9, 1991. A second copy should be submitted to Central Valley <br /> Regional Water Quality Control Board (CVRWQCB) to the attention of Antonia Vorster. <br /> Environmental Health would like to receive advance notification of the intended field sampling activities. <br /> Please notify my staff person noted below. <br /> If you have any questions, please feel free to contact Diane M. Hinson, Supervising REHS, of my staff at <br /> (209)468-3452. <br /> Jogi Khanna, M.D., M.P.H. <br /> ealth Offic r <br /> La -e Cotulla, REHS, Pro ram Manager <br /> Environmental Health Division <br /> LAC/DH:nr <br /> c: CVRWQCB - Elizabeth Thayer <br /> c: Diamond Walnut - Jim Wagner <br /> P.O. Box 1727; Stockton, CA 95201 <br /> c: Diamond Walnut; 5568 Gibraltar Drive; Pleasanton, CA 94566 <br /> c: Charles Hunt, PHS/EHD, Unit III <br /> A Division of San Joaquin Counry Health fate Services C 7 <br />