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STATE OF CALIFORNIA GEORGE DEUKMEJIAN,Governor <br /> CALIFORNIA REGIONAL WATER QUALITY CONTROL BOARD— <br /> CENTRAL VALLEY REGION <br /> 3443 ROUTIER ROAD `® <br /> SACRAMENTO,CA 95827-3098 <br /> 12 September 1989 <br /> Mr. Abel Haines <br /> Environmental Program Manager <br /> Sharpe Army Depot <br /> Lathrop, CA 95331 <br /> PROPOSED ABANDONMENT OF MONITORING WELLS 520 A, B, AND C, HOMESTEAD LAND <br /> DEVELOPMENT, SAN JOAQUIN COUNTY <br /> We received your 29 August 1989 letter regarding the subject monitoring wells. <br /> Well cluster 520 is downgradient of the South Balloon area and an important <br /> control point for both sampling and water level measurements. Although, as your <br /> letter states, these wells have not detected contamination from the site, it is <br /> exactly for this reason that the wells are most useful for future monitoring. <br /> Accordingly, our office opposes abandonment of well cluster 520, or any other <br /> downgradient, offsite well clusters for that matter. Please contact me at (916) <br /> 361-5742 if we need to discuss this further or you have any questions. <br /> GARY A. REENTS <br /> PrOJccct Enineer <br /> GAR:ava <br /> cc: Mr. Vance Fong, Environmental Protection Agency, Region 9, San Francisco <br /> Ms. Tracy Billington, Department of Health Services, TSCD, Sacramento <br /> ,qtr. Ron Valinoti , Public Health Services, San Joaquin, Stockton <br /> Mr. Bruce J. Brennan, Project Development Manager, Homestead Land <br /> Development Corporation, Burlingame <br /> Mr. John Verner, Verner Construction, Stockton <br /> Mr. Craig MacPhee, USATHAMA, AMXTH-TE-D, Aberdeen Proving Ground, Maryland <br /> Mr. Tim Toplisek, DESCOM, AMSDS-RM-EFD, Chambersburg, Pennsylvania <br />