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TUTTLE & TAYLOR EDWARD W TUTTLE <br /> EDWARD E.TUTTLE DIANN N.KIM 118)/'1980) <br /> ROB ERT G.TAYLOR' MARLA A ASPINWALL A LAW CORPORATION <br /> MERLIN W.CALL BETH S.DORRIS <br /> PATRICK L.SHREVE' ROBIN D.WIENER FORTIETH FLOOR <br /> MARK SCHAFFER RICHARD B.WENTZ OF COUNSEL <br /> JOSEPH R.AUSTIN ANTHONY L.PRESS 355 SOUTH GRAND AVENUE JULIAN B.HERON,JR.— <br /> C.DAVID ANDERSON' JENNIFER A.MILLER <br /> ALAN E.FRIEDMAN KATHERINE C.SHEEHAN LOS ANGELES, CALIFORNIA 90071-3101 <br /> BONNIE BUN <br /> TIMI ANTON MALLEM PAMELA G.BOTHWELL CHRISTOPHER J.HUNT <br /> MERRICK J.BOBS SUSAN M.WALKER TELEPHONE:(20)663-0600 JERRY W KENNEDY' <br /> CHARLES L WOLTMANN- JEFFREY D WEKLER TELECOPIER:(213)663-0225 <br /> MARJORIE S.STEINBERG SHARON A.FARKAS <br /> DOUGLAS W.BECK GREGORY B.KOLTUN <br /> MARK A.BORENSTEIN' LESLIE E.WALLIS TUTTLE b TAYLOR <br /> NANCY E.HOWARO ALF W.BRANDT* 1025 THOMAS JEFFERSON STREET,IN VE <br /> MARC L.BROWN CHARLES WEINSTEIN <br /> MICHAEL H.BI ERMAN NICOLAS H.MILLER WASHINGTON,0 20007 <br /> SUSAN L HOFFMAN KATHLEEN M.WOMN (202)352-1300 <br /> JEFFREY M.HAMERUNG ROSARIO M.HERRERA September 30, 1991 <br /> FRANK E.MELTON JULIO A.THOMPSON <br /> DAVID B.BABBE JOHN R.DENT <br /> GORDON A.GOLDSMITH AMY E.HOYT TUTTLE bTAYLOR <br /> JAMES R.GILSON' A 1..OnFOwwb.. <br /> 33 NEW MONTGOMERY TOWER <br /> 'HILMSER CAU FORMA or COLUHSPA SAPS NINETEENTH FLOOR <br /> w ....... u SAP OPv SAN FRANCISCO,CA 94105 9 781 <br /> AIS)9571300 <br /> _r <br /> WRITER'S DIRER DIAL NUMBER: <br /> OCT 02 1531 <br /> FEDERAL EXPRESS <br /> ENVIRONIVENTAL HEA, (:213) 683-0201 <br /> PERMIT/SERVICES <br /> Diane Hinsin, REHS Supervisor <br /> Public Health Services <br /> San Joaquin County <br /> Post Office Box 2009 <br /> 1601 East Hazelton Avenue <br /> Stockton, California 95201 <br /> Re: Diamond Walnut Growers, Inc. ( "Diamond Walnut") ; <br /> Underground Tanks at Site 1781 <br /> Dear Ms . Hinsin: <br /> Diamond Walnut is diligently proceeding with development <br /> of a Problem Assessment Report for the Site. Recent sampling, <br /> however, has shed new light on the extent of contaminant levels in <br /> the groundwater. <br /> As you recall, your main concern at the Site, as <br /> indicated in your letter dated July 27, 1991, has been the level <br /> of soluble chromium and hexavalent chromium in the groundwater <br /> prior sampling from monitoring well number 3 in the Phase II <br /> Investigation indicated levels in excess of maximum contamination <br /> levels for these substances . <br /> New sampling from the wells at the Site now indicate much <br /> lower levels of chromium and hexavalent chromium in the <br /> groundwater. The levels now approximate DHS-MCL levels, as shown <br /> in the enclosed report. <br /> In light of this development, Diamond Walnut believes the <br /> Site should be reevaluated and would like to discuss this matter <br /> further with you. <br />