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Califfor ' a Rtional Water Quality shntrol Board <br /> Central Valley Region bi <br /> Peter M.Rooney Sacramento Main Office Ed J.Schnabel <br /> Secretaryfor Internet Address: http://www.swreb.ca.gov/—mgcb5thome.html Chair <br /> Environmental 3443 Routier Road,Suite A,Sacramento,California 95827-3003 <br /> Protection Phone(916)255-3000•FAX(916)255-3015 <br /> _o <br /> 4 November 1998 C� <br /> Mr. Donald T. Bradshaw <br /> c/o Jae Anderson <br /> Levine Fricke Recon, Inc. <br /> 1900 Powell Street, 12th Floor <br /> Emeryville, CA 94608-1827 <br /> CHANGE IN DATA VALIDATION FOR QUARTERLY MONITORING AND INITIAL <br /> WELL SAMPLES, LINCOLN VILLAGE CENTER, SAN JOA QUIN COUNTY <br /> I have reviewed the 26 October 1998 Data Validation for Quarterly Monitoring and Initial <br /> Sampling of New Wells, Lincoln Center, Stockton, California (QAPP Revision No. 7) submitted <br /> by Levine Fricke Recon(LFR) for the Settling Dry Cleaning Defendants. The document <br /> proposes a change in the data validation procedure from Level IV performed by an independent <br /> data validator to Level III performed by LFR. LFR states that it has been performing Level III <br /> data validation for the Lincoln Center chemical data since November 1995 in addition to the <br /> independent Level IV data validation. Based on this historic comparison, LFR found that the <br /> Level III data validation produced the same data validation results. The letter also agrees that if a <br /> future Level IV data validation is necessary, raw data can be obtained from the analytical <br /> laboratory. Therefore,the proposed change in the data validation procedure, from independent <br /> Level IV to LFR Level III, is approved. <br /> If you have any questions,you may call me at(916) 255-2077. <br /> KIT C,/ <br /> TIS <br /> Engineering Geologist <br /> cc: San Joaquin County Environmental Health, Stockton <br /> Mr. A.J. Birkbeck, Esq., Fulcrum Environmental Law, Oak Park, IL <br /> Ms. Anne Farr, Farr Associates, Folsom <br /> Mr. John Gregory, Esq., LeBoeuf, Lamb, Greene &MacRae, San Francisco <br /> Mr. Wilbur Smith II, Esq., Lincoln Properties,Ltd., Stockton <br /> Mr. Barry Williams, Esq., JAMS/ENDISPUTE, San Francisco <br /> California Environmental Protection Agency <br /> 0 Recycled Paper <br /> khc:lsb:20513s <br />