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_ ! &ECEIVE D <br /> SglSilrylryq,� <br /> \\".Ij� •. DEPARTMENT OF THE ARMY MAY 2 0 1989 4°° <br /> SF/ARPE ARMY DEPOT ENVIRONMENTAL HEAL4 <br /> �`11Af v LATHROP, CALIFORNIA 95331 PERMIT/SERVICESp ,F <br /> REPLY TONT Ofd <br /> ATTENTION OF October 18, 1989 <br /> Environmental Program Office <br /> Mr. Vance Fong <br /> U.S. Environmental Protection Agency, Region IX <br /> Toxics and Waste Management Division, T-4-3 <br /> 215 Fremont Street <br /> San Francisco, California 94105 <br /> Dear Mr. Fong: <br /> Enclosed is a description of a planned pilot test to be conducted at <br /> Sharpe Army Depot. The objective of this pilot test is to determine the <br /> feasibility and associated costs for arsenic removal from groundwater. This <br /> pilot test is not intended as a remedial action. After the specified test <br /> period is over, the equipment will be removed. <br /> The U.S. Army Toxic and Hazardous Materials Agency has recently awarded a <br /> contract to Argonne National Laboratories to study naturally occurring <br /> arsenic levels in the area and possible sources at Sharpe Army Depot. Based <br /> on the results of the Argonne study and subsequent negotiations with the <br /> involved agencies, a decision on whether treatment is necessary will be made. <br /> Pilot testing of arsenic removal methods is being conducted so that a <br /> treatment system can be designed if arsenic treatment becomes required. By <br /> conducting this pilot test, the Army acknowledges no responsibility for <br /> arsenic levels in groundwater at the site and makes no commitment to <br /> establish any type of treatment system. <br /> Please direct any questions or comments concerning this matter to the <br /> undersigned, Sharpe Army Depot, at (209) 982-2097 , or Mr. Craig MacPhee, U.S. <br /> Army Toxic and Hazardous Materials Agency, at (301) 671-3240/3460. Request <br /> coffiments, recommendations, and approval by November 20, 1989. <br /> Sincerely, <br /> Abel W. Haines, P.E. <br /> Environmental Program Manager <br /> Enclosure <br />