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Ms. Lori Duncan <br /> Page 2 of 2 <br /> Groundwater Monitoring Report: Impacted area� 30,000 square feet, estimated vertical impact <br /> 30 feet, estimated 0 z 35%, average concentration:z-- 1,000 ppb. <br /> Mass=(30,000)(3O)(0.35)(62.4 lbs/ft3)(1,0OO ppb)(1 O"g)= 19.6 lbs <br /> Please feel free to call me at (209) 838-9888 if you have any questions or comments regarding this <br /> submittal. <br /> Respectfully, <br /> Ground Zero Analysis, Inc. <br /> Joseph L. Vasqu z, �SS�pNAI G�p10 <br /> Staff Geologist c <br /> a GREGP. <br /> / <br /> STAHL <br /> * No.5023 <br /> Gregory P. Stahl, PG 5023 uglF OF CA��FO��Q <br /> CA Certified Hydrogeologist No. 264 <br /> Enclosures: Check No. 17175 ($374.00) <br /> Permit Application <br /> Figures and Soil Table <br /> G:IGROUNDZ6ITI JLEBURGIpermi icvr.do c <br />