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STATE OF CALIFORNIA_ <br /> ENVIRONMENTAL P <br /> E"cv <br /> CENTRAL VALLEY REGION <br /> CALIFORNIA REGIONAL WATER O I " " L;VNTROL BOARD ETE WILSON c <br /> 3443 ROUTIER ROAD, SUITE A <br /> SACRAMENTO, CA 95827-3098 _ <br /> PHONE: (916) 255-3000 <br /> FAX: (916) 255-3015 p - <br /> 6 November 1995 <br /> M12' SO <br /> Mr. John Rapp <br /> Sierra Pacific Groundwater Consultants <br /> 4911 Windplay Dr, Suite 4 <br /> El Dorado Hills, CA 95762 <br /> ABANDONMENT OF MW-4.PUREGRO/BR&t BROADWAY <br /> Thank you for submitting the workplan for the proposed abandonment of monitoring well <br /> #4 at the former PureGro/Brea site on Broadway. MW-4 is located within <br /> former southern pond. the area of the <br /> Staff have had several discussions with Siena Pacific and Unocal about remediating the <br /> excavated. However, Unocal's current remedial proposal is not <br /> south pond soils, and agreed that MW-4 would need to be abandoned if the pond soils were <br /> to excavate any soil, but to <br /> cap the former pond. With this scenario, MW-4 would not need to be abandoned. <br /> Because the final remedial measure has not yet been determined for the south pond, I feel <br /> that it is premature to decommission MW-4. <br /> If you have any questions, I can be reached at (916) 255-3104. <br /> U3Ujj/-) <br /> WENDY WYELS <br /> Ag Regulatory Unit <br /> cc: Mr. Nick Nickerson, Unocal, San Ramon <br /> Mr. Mike Infurna, San Joaquin County Public Health Service, Stockton <br />