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California Regional Water Quality Control Board <br /> Central Valley Region • <br /> Karl E. Longley,ScD,P.E.,Chair <br /> Linda S.Adams Sacramento Main OArnold <br /> Secrerar3 for acameffice Schwarzenegger <br /> C:nvo omnental 11020 Sun Center Drive 4200,Rancho Cordova.Cal Hernia 95670.6114 Governor <br /> Prmecoon Phone(916)464-3291 •FAX(916)464-4645 <br /> h II p://www.gate rboards.ca.gov/centralvalley <br /> 12 March 2007 FFECENED <br /> MAR 13 2007 <br /> ENkWIT SERVICES HEALTH <br /> Mr. Robert Garcia <br /> Leprino Foods, Inc. <br /> 1830 West 38th Avenue <br /> Denver, CO 80217 <br /> DRAFT REVISED MONITORING AND REPORTING PROGRAM, LEPRINO FOODS <br /> COMPANY, TRACY, SAN JOAQUIN COUNTY <br /> Leprino Foods, Inc. is monitoring groundwater at its plant in Tracy, San Joaquin County, under <br /> Monitoring and Reporting Program (MRP) No. R5-2003-0808, due to a release of Total <br /> Petroleum Hydrocarbons as diesel. Leprino has operated a groundwater extraction and <br /> treatment system since 1996. The groundwater extraction well EW-1 was replace by EW-2 in <br /> 2002, which created an enhanced capture zone. In December 2005, Leprino installed a <br /> second extraction well to further enhance the capture zone and serve as a back-up should <br /> EW-2 need maintenance. Leprino also installed product recovery pumps in two existing <br /> monitoring wells and two new wells. Staff of the Central Valley Regional Water Quality Control <br /> Board (Regional Water Board) revised the MRP because the capture zone and product <br /> recovery enhancements made the MRP out of date. <br /> The revised MRP removes the requirement to monitor groundwater at the product recovery <br /> points, three wells (MW-2, MW-9 and MW-10) shall be only be monitored for depth to <br /> groundwater to verify the cone of depression, and wells MW-7, MW-8, MW-16, RW-3, RW-4A <br /> and RW-5A are eliminated from monitoring because these points are either redundant with <br /> other monitoring wells or because previous monitoring shows groundwater conditions at these <br /> wells are stable. All other wells shall be monitored on a semi-annual basis. <br /> Enclosed is the draft MRP for your review and comment. Please review the attached draft <br /> revised MRP and provide any comments to me by 20 April 2007. If you have questions about <br /> this letter, you may contact me at (916) 464-4677 or by email at gdjuth@waterboards.ca.gov. <br /> � <br /> Gerald J. Djuth, PE, CE <br /> Private Sites Cleanup Unit <br /> Attachment <br /> cc: Ms. Lori Duncan, San Joaquin County Environmental Health Services, Stockton <br /> Mr. Reed Azevedo, Leprino Foods Company, Tracy <br /> Mr. Brendan Shine, HSI GeoTrans, Westminster, Colorado <br /> California Environmental Protection Agency <br /> pia Recycled Paper <br />