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Mike Lescisin <br /> Page 2 <br /> In the November 1, 1991 letter to Diamond Walnut, several tasks were to take place in <br /> order for Resna Industries to prepare an appropriate remediation plan. The assumption has <br /> been made that the concentration of chromium in the vicinity of monitoring well #3 may <br /> pose a threat to groundwater quality. Additional soil investigation should be conducted to <br /> better define the actual or potential threat of the chromium contaminants. <br /> Further evaluation of the material stored within vaults 1, 5, and 6 suggest that the presence <br /> of ethylene and propylene glycol could pose a significant threat to groundwater quality. <br /> Further soil investigation is needed in these former underground storage areas to define the <br /> extent of contamination and determine appropriate mitigative measures. <br /> A workplan for the soil investigation with these issues addressed shall be prepared and <br /> submitted to PHS/EHD and CVRWQCB no later than July 5, 1993. <br /> If you have any questions, please contact Diane M. Hinson, Supervising REHS, of my staff <br /> at (209) 468-3452. <br /> Jogi Khanna, M.D., M.P.H. <br /> Health Of ' e <br /> Laurie A. Cotulla, REHS, Program Manager <br /> Environmental Health Division <br /> LAC/DMH:lb <br /> Enc. <br /> c: Beth Dorris <br /> Tuttle & Taylor <br /> 355 S. Grand Ave. <br /> Los Angeles, CA 90071-3101 <br /> c: Resna Industries <br /> Sharon Young <br /> 1710 Main St. <br /> Escalon, CA 95320 <br />