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,. ' <br /> STATE OF CALIFORNIA • <br /> GEORGE DEUKMEJIAN, Governor <br /> CALIFORNIA REGIONAL WATER QUALITY CONTROL BOARD— <br /> CENTRAL VALLEY REGION <br /> 3443 ROUTIER ROAD, SUITE A <br /> SACRAMENTO, CA 95827-3098 'jF . <br /> 21 September 1990 <br /> Mr. Richard A. Ragaini , Chief <br /> University of California <br /> Environmental Protection Department <br /> Lawrence Livermore National Laboratory <br /> Post Office Box 808 <br /> Livermore, CA 94550 <br /> DRY WELLS REMEDIAL INVESTIGATION, UNIVERSITY OF CALIFORNIA, LAWRENCE LIVERMORE NATIONAL <br /> LABORATORY SITE 300, SAN JOAQUIN COUNTY - CASE NO. 2677 <br /> We have reviewed the November 1989 Remedial Investigation of Dry Wells (RI) and the 29 <br /> January 1990 Addendum to Initial Remedial Investigation of Site 300 Dry Wells <br /> (Addendum) . In accordance with the discussion and recommendations of the enclosed <br /> memorandum, you should expand the RI and the Addendum as follows: <br /> 1 . Employ, for each dry well , an environmental fate analysis such as the Designated <br /> Level Methodology to establish acceptable soil concentrations for each waste <br /> constituent, and <br /> 2. Clearly justify, through calculations, maps, and drawings, the conclusions and <br /> recommendations resulting from the analyses. <br /> In this effort, you should consider the enclosed basic discussion of procedures to <br /> correctly conduct environmental fate analyses and to establish site cleanup levels. <br /> Please report the results of the analyses by 26 October 1990. If you have any <br /> questions, please call me at (916) 361-5653. <br /> f , <br /> MICHAEL HIGGINS <br /> Project Engineer <br /> MLH:gs <br /> Enclosures <br /> cc+enc: Mr. James Hartman, U. S. Department of Energy, Oakland <br /> Mr. Michael Brown, U. S. Department of Energy, Oakland <br /> Mr. Mostafa Radmand, U. S. Environmental Protection Agency, Region 9, San <br /> Francisco <br /> Department of Health Services, Berkeley <br /> San Joaquin Local Health District, Stockton ✓' <br /> Mr. Eugene Draney, Lawrence Livermore National Laboratory, Livermore <br /> Mr. Fred Hoffman, Lawrence Livermore National Laboratory, Livermore <br /> Ms. Susi Jackson, Lawrence Livermore National Laboratory, Livermore <br />