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February 28, 1997 <br /> fa <br /> kEPA <br /> Department of � � � Pete Wilson <br /> Toxic Substances V� Governor <br /> Control <br /> Mr. James Brathovde MAR 12 1997 James M. Strock <br /> 400 P,street, Regional Water Quality Control Board Secretary for <br /> 4th Floor Central Valley RegionAt.HEAg" avironmentat <br /> P.U. Box 806 ENIC�CK�NME� Protection Routier Road, Suite A PERMlTi5ERV10ES Prvtectia <br /> Sacramento, CA Sacramento, California 95827-3098 <br /> 95812-0806 <br /> RE COMNMNTS ON TBE MEMORANDUM REGARDING THE <br /> DISPUTE SETTLEMENT AT THE FORMER TEXACO GAS <br /> STATION(NOW TOGO'S) <br /> Dear Mr.Brathovde <br /> The Department of Toxic Substances Control(DTSC)has reviewed the <br /> memorandum prepared by W. Richard Rernpel of the Division of Clean Water <br /> Programs(Attachment)regarding the dispute settlement at the former Texaco gas <br /> station(Site). DISC found that the memorandum contains inaccurate <br /> information,therefore,the recommendation made is misleading. DTSC's findings <br /> are specified below: <br /> 1. Page 1. The third paragraph"the site also lies within an existing <br /> chlorinated solvents plume reportedly emanating from several dry cleaning <br /> establishments in Lodi which includes PCE, T E, chloroform, 1,2-DCEE, <br /> and 1,2-DCA and which is being investigated under the Department of <br /> Toxic Substances Control lead." <br /> Comment: <br /> This information is inaccurate. Comprehensive soil ;as, sewer and <br /> groundwater investigationwereconducted by DTSC from 1993 through 1995 to <br /> determine extent of the volatile organic compounds (VOCs)in soil and <br /> groundwater beneath the City of Lodi(City). Areas upgradient and cross gradient <br /> from the Site were within the scope of DTSC°s investigation. 1,2-DCA was not <br /> detected in any of the soil, sewer and shallow groundwater samples collected from <br /> areas upgra:ient or cross gradient ftom the Site(north of Lodi Avenue). Trace <br /> amount of 1,2-DCA(2.4 ug/1)was detected in deeper aquifer(95 ft bgs)at a <br /> location cross-gradient from the Site. The former gas station has been found to be <br /> the highest 1,2-DCA(86 ug/1) contaminated site in the City of Lodi. 1,2-DCA is a <br /> confirmed carcinogen. The State and Federal Maximum Contamination Level for <br /> 1,2-DCA is 0.5 ug/l. <br /> trip. <br /> of wfa+AAM <br />