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' • i <br /> Mr. Marshall Cloud <br /> November 26, 1991 <br /> Page 2 <br /> remedial investigation (RI) . The emphasis of the RI to date has <br /> been to determine the extent of TCE and tetrachloroethene <br /> contamination. Programs that could determine the presence of <br /> carbon tetrachloride are in their infancy. For DDRW Tracy to <br /> determine that carbon tetrachloride is not attributable to you is <br /> premature. Based on heath concerns, the Department supports the <br /> position that DDRW Tracy provide an alternative water supply to <br /> the Robertsons immediately. The determination of actual <br /> responsibility can be deferred until more data is available. <br /> Should you have any questions regarding this letter, you may <br /> contact me at (916) 855-7874 . <br /> Sincerely, <br /> R <br /> Jim Pinasco <br /> Waste Management Engineer <br /> Site Mitigation Branch <br /> Region 1 <br /> cc: Mr. Michael Work <br /> U. S. Environmental Protection Agency <br /> Region IX <br /> 75 Hawthorne St. (H-7-3) <br /> San Francisco, California 94105 <br /> Ms. Cam Williams <br /> California Regional Water Quality Control Board <br /> 3443 Routier Rd. <br /> Sacramento, California 95827-3098 <br /> Ms. Diane Hinson <br /> Environmental Health Department of San Joaquin County <br /> P. O. Box 2009 <br /> Stockton, California 95201 <br /> Mr. Steve Light <br /> U. S. Army Corps of Engineers <br /> Huntsville, Alabama 35807 <br />