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r) <br /> PUBLIC HEALTFfS- ERV ICES <br /> SAN JOAQUIN COUNTY <br /> ENVIRONMENTAL HEALTH DIVISION O " a <br /> Karen Furst, M.D., M.P.H., Health Officer ". <br /> 304 East Weber Avenue, Third Floor • Stockton, CA 95202 <br /> 2091468-3420 <br /> UNOCAL CORP <br /> W T NICKERSON OCT 19 2000 <br /> 8788 ELK GROVE BLVD BLDG 3 STE 15 <br /> ELK GROVE CA 95524-1769 <br /> RE: Unocal#0123 (former) Site Code:505099 <br /> 1034 S. Central Ave. RO#00616 <br /> Tracy, CA.,95376 <br /> WORK PLAN. " Monitoring Well Installation",dared: October 12,2000. <br /> PREPARED BY: Getler-Ran Inc., Stephen J. Carter,RG# 5577 <br /> APPROVED (with conditions")pq <br /> DISAPPROVED <br /> ADDENDUM NEEDED <br /> ADEQUATE AND NECESSARY ELEMENTS OF THE WORK PLAN[H&S <br /> 25299.37,subd(c)(3)]: <br /> 1. Installation of offsite monitoring wells to define down-gradient groundwater <br /> petroleum plume. <br /> 2. Collection of soil and groundwater samples for analyses for TPHg & d, BTEX, <br /> MtBE.and other oxygenates. <br /> CONDITIONS AND COMMENTS: <br /> 1. Soil samples are to be collected and analyzed from 10', 15',and 20'bgs. Also, I.- <br /> 2.-DCA, EDB,and Lead are to be Analyzed forlin all_soil and groundwater <br /> samples collected, in addition to the constituents Iisted in the work plan. <br /> 2. At least two (2) consecutive, quarterly-groundwater sampling-events will be <br /> conducted for these two new wells after the installation and development and for <br /> all monitoring wells associated with this site. All constituents listed in the work <br /> plan and those listed under`conditions' herewith shall be included in the two <br /> minimum sampling events. <br /> REASONS FOR DISAPPROVAL OF THE WORK PLAN[H&S 25299.37,subd(c)(3)1: <br /> none <br /> DATED: October 19,_20.00. BYT A #5649 <br /> Michael In a, nior (209) 468-3454 <br /> Faxed to consultant[X] (10-19-00) <br /> O�3 <br /> G <br /> D <br /> A Division of San Joaquin County Health Care Services <br />