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741 <br /> � i L L , <br /> PUBLIC Ht-'ALTH <br /> SERV IS ,oPar <br /> SAN JOAQUIN COUNTY <br /> ENVIRONMENTAL HEALTH DIVISION ` <br /> Karen Furst, M.D., M.P.H., Health Officer <br /> 304 East Weber Avenue, Third Floor • Stockton, CA 95202 Q`�FoR� <br /> 209/468-3420 <br /> JOHN & MAXINE FERRAIOLO <br /> PO BOX 757 <br /> LODI CA 95241 <br /> RE: HARRY'S AUTO MART SITE CODE: 1306 <br /> 2662 N WILSON-WY <br /> STOCKTON CA 95205 <br /> WORKPLAN: Workplan for Additional Subsurface Investigation DATED: October 18,2000 <br /> PREPARED BY: Ground Zero Analysis Inc. <br /> lr APPROVED with Conditions (See Below) <br /> ❑ DISAPPROVED <br /> ❑ ADDENDUM Submit by: <br /> ADEQUATE AND NECESSARY ELEMENTS OF THE WORKPLAN(1-186 25299.37,subd.(c)(3).): <br /> 1. One CPT borings to approximately 110 feet below surface grade (twin borings for sampling and for <br /> sounding) in the vicinity of the former UST to define the vertical extent of the contamination. <br /> 2. 3 monitoring wells(MVX)to investigate the lateral extent of the groundwater contamination and to <br /> evaluate the groundwater gradient flow direction by coordinating with data from existing MW-1 on <br /> site. The 3 MWs will be completed in two separate phases. <br /> 3. Conduct and report 2000 feet well receptor survey. <br /> 4. This work plan uses previous health and safety plan submitted to this office by Ground Zero on <br /> October 13, 1999. <br /> COMMENTS AND CONDITIONS: <br /> 1. Provide a working,properly calibrated field organic vapor monitor(OVNi) during advancement of the <br /> borings. <br /> 2. Contingency to advance CPT boring deeper and obtain additional samples based on field observations <br /> and OVM data. <br /> 3. Obtain permission to sample and report(in all quarterly monitoring reports)the groundwater sample <br /> from MW-7 owned by the UHaul station located at 2701 North Wilson Way. <br /> 4. Submit well permit application and$89 permit fee to this office. Permit must be obtain before <br /> commencement of work <br /> 5. Commence work(Phase 1)by December 16,2000. <br /> REASONS FOR DISAPPROVAL OF THE WORKT(FI16 2529 .37,subd.(Q(3).): <br /> DATED November 14,2000 BY <br /> Cc: CRWQCB,Central Valley Region—Marty <br /> Cc: Ground Zero Analysis,Inc.—Sean Garvey <br /> A Division of San Joaquin County Health Care Services <br />