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SUVE F CAZIFORNIA - Environmental Pro, an Agency PETE WILSON, Governor <br /> CALIFORNIA REGIONAL WATER QITY CONTROL BOARD <br /> CENTRAL VALLEY REGION _ <br /> 3443 Routier Road, Suite A <br /> Sacramento, CA 95827-3098 x vvll11. itl <br /> en <br /> PHONE: (916) 255-3000 (` ;i$I r ;v `"owu <br /> FAX: (916) 255-3015 <br /> 91 <br /> I; i Ar <br /> 10. 2 <br /> 17 January 1997 <br /> Mr. Gary Rimmey <br /> Cargill, Inc. <br /> P.O. Box 9300, M.S. 48 <br /> Minneapolis, MN 55440 <br /> MONITORING WELL INSTALLATION REPORT.• PORT ROAD 8 FACILITY <br /> -Thank-you-for submitting the-Installation.Report Monitoring Wells (f'W-01,--CRL02-and CW-03) for - <br /> the former Cargill facility on Port Road 8, Port of Stockton. After reviewing the,report, I have a <br /> few comments: <br /> 1. Please include the scaled facility map and the surveyor's report in the first quarterly monitoring <br /> report. <br /> 2. The report compares metal concentrations in the soils to "federal Maximum Contaminant Levels <br /> (MCL)". There is no basis for this comparison, as MCLs are set for contaminants in water, not <br /> for soil. Instead, the metals should be compared to site specific designated levels. I did this, <br /> and found that the concentrations appear-excessive for several of the metals., Therefore, during <br /> the next quarterly monitoring event, please also analyze the groundwater from well CW-02 for <br /> metals by the ICAP procedure. <br /> I understand that the wells were first sampled in November, so the next.quarterly monitoring event <br /> is to take place in February. The November report of results should be submitted to me by the end <br /> of this month, so that I have time to review and comment before the February samples are collected. : <br /> I look forward to receiving the November report of results. If you have.any,questions, I can be <br /> reached at (916) 255-3104. <br /> WENDY WYELS <br /> Agricultural Unit <br /> cc: Mr. Jack Holm, Cargill, Stockton <br /> Ms. Charlene Wall, Port of Stockton, Stockton: <br /> Mr. Mike Infurna, San Joaquin County Public Health, Stockton <br /> Mr. John Rapp, Sierra Pacific Groundwater Consultants, El Dorado Hills <br />