Laserfiche WebLink
Nk., 1/ <br /> Bob Vasques <br /> Page 2 <br /> Soil contamination detected during the installation of P-8 (16 ppm TPH-gasoline) <br /> suggests that the former gas pump island may have contributed to soil contamination. <br /> Furthermore, soil results from MW1 (1,100 ppm TPH-gas) and P4 (1,400 ppm TPH- <br /> gasoline) near the dry well suggest that the dry well may have acted as a conduit <br /> facilitating the migration of contamination. Finally, the possible effects of mass loading, <br /> which may have been caused by the presence of free product, is unknown. Please submit <br /> by April 30, 1993 an additional addendum addressing soil contamination remediation. <br /> The RAP indicated that a groundwater extraction well would be installed. Please submit <br /> by March 1, 1993 a work plan to install the proposed groundwater extraction well. It is <br /> essential that remediation begin as soon as possible and delays should be avoided. <br /> Proceed with efforts to obtain a WDP and/or NPDES permit from the CVRWQCB and <br /> a building permit from the City of Tracy. <br /> Please continue groundwater monitoring and quarterly reporting. The last groundwater <br /> sampling event occurred on December 28, 1992. Please make efforts to submit quarterly <br /> reports within 30 days of the date of sampling. <br /> If you have any questions or comments, please contact Mary Meays, REHS, of my staff <br /> at (209) 468-0337. <br /> Jogi Khanna, M.D., M.P.H. <br /> Health Officer <br /> Laurie A. CotuIla, REHS, Program Manager <br /> Environmental Health Division <br /> LAC/MM:lb <br /> c: Elizabeth Thayer, CVRWQCB <br /> c: Al Ellis, Rishwain, Hakeem and Ellis <br /> c: Sandra Lindsey, Groundwater Technology <br />