Laserfiche WebLink
+ STATE OF CALIFORNIA—ENVIRONMENTAL PROOON AGENCY • PETE WILSON, Go"mor <br /> DEPARTMENT OF TOXIC SUBSTANCES CONTROL ./ <br /> REGION 1 pp f FIC Iii` r <br /> OF <br /> 101,1 CROYDON WAY, SUITE 3 f'.�� S�.PvjIJE Lill <br /> SACRAMENTO, CA 95827-2106 <br /> (916)255-3545 J!9 kJ 1 PPI <br /> SI <br /> January 13, 1994 <br /> Mr. Fran E. Forkas CONFIDENTIAL <br /> Water/Wastewater Superintendent <br /> Public Works Department <br /> Lodi, California 95242 <br /> LODI SEWER INVESTIGATION RESULTS <br /> Dear Mr. Forkas: <br /> The Department of Toxic Substances Control (Department) has <br /> received laboratory analytical results for the sewer sampling <br /> investigation conducted on November 11, 1993 to determine the <br /> source(s) of trichloroethylene (TCE) contamination. Attachment A. <br /> shows the sampling locations and attachment B summarizes the <br /> analytical results. <br /> Significant concentrations of 1, 1, 1-trichloroethane <br /> (1, 1, 1-TCA) were detected in sewer samples collected at manholes <br /> I1909 and I1936 of the sanitary sewer line. At I1909, the <br /> ambient sample was .found to contain 1, 1, 1-TCA of 453 parts per <br /> billion (ppb) , and the flush sample was found to contain 8980 <br /> ppb. At I1936, the ambient sample was found to contain 1, 1, 1-TCA <br /> of 342 ppb and the flush sample was found to contain 354 ppb. <br /> Because Lustre-Cal Nameplate Incorporated (Lustre-Cal) is <br /> the company immediately upgradient of manhole I1909 and has been <br /> found to use 1, 1, 1-TCA on-site, the Department believes that <br /> Lustre-Cal has been discharging wastewater containing significant <br /> amount of 1, 1, 1-TCA to the City sanitary sewer lines. Manhole <br /> I1936 is downgradient of manhole I1909. <br /> Please review this information and contact the Department <br /> with your comments regarding the sewer sampling investigation. <br /> Additionally, the Department requests to be notified of any <br /> ,j actions that the City may take. <br /> Iran <br /> IY3&014 <br /> n <br /> to, <br /> P,iamd o.R. ,IM Paps, <br />