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California Regional Water Quality Control Board <br /> Central Valley Regionm` <br /> , <br /> Robert Schneider,Chair <br /> Winston H. Hicl:ox Gray Davis <br /> Secretaryfor Sacramento Main Office Governor <br /> Environmental Internet Address: http://www.swrcb.ca.gov/rwgcb5 <br /> Protection 3443 Routier Road,Suite A,Sacramento,California 95827-3003 <br /> Phone(916)255-3000•FAX(916)255-3015 <br /> 6 April 2001 <br /> Richard Powell <br /> Naval Facilities Engineering Command, West <br /> Environmental Compliance, Mail Code 6423 <br /> 900 Commodore Drive <br /> San Bruno, CA 94066-2402 <br /> NO FURTHER A CTION REQ UIRED, OIL WATER SEPARATOR AT BUILDING 617, NAVAL <br /> COMPUTER AND TELECOMMUNICATIONS STATION, SAN DIEGO DETACHMENT, <br /> STOCKTON <br /> We have reviewed the Final Workplan for Buildings 508 and 617 Oil Water Separator Remedial <br /> Investigation and Evaluation report dated 31 January 2001 and associated Meeting Summary letter of <br /> 14 March 2001. This letter confirms the completion of the site investigation and remedial action for the <br /> oil water separator(OWS) at Building 617. Comments on the OWS at Building 508 will be under <br /> separate cover. <br /> Building 617's OWS was formerly used for disposal at an auto repair facility and hobby shop in the <br /> adjacent building. According to the scope of the investigation in 1997, the sump and associated piping <br /> were removed and the excavation was backfilled with clean soil and capped with concrete and the three <br /> chambers of the OWS were cleaned. All TPH-gasoline and TPH-diesel were below the reporting limits <br /> or non-detect, as were all PCBs, SVOCs and BTEX compounds. Based upon analytical results of <br /> investigations, we find that there is no significant risk to the environment from the former UST, and <br /> therefore no further actions are required at this site. <br /> Please contact John R ssell at (916) 255-3066 if you have any questions regarding this matter. <br /> AN O K.J. VORSTER <br /> Supervising Engineer <br /> cc: San Joaquin County Environmental Health Department <br /> Brad Beeman/Gail Qatsha, NCTS, Stockton <br /> Terry Escarda, Region 1, DTSC <br /> Jay Jahangiri, Port of Stockton <br /> Jeff Morris/Tom Lae, CH2M Hill, 2485 Natomas Park Drive, <br /> Suite 600, Sacramento, CA 95833 <br /> KAS:NCTS 617 OWS NFA <br /> California Environmental Protection Agency <br /> ?a Recycled Paper <br /> The energy challenge facing California is real. Every Californian needs to take immediate action to reduce energy consumption. <br /> For a list of simple ways you can reduce demand and cut your energy costs,see our Web-site at littp://www.swrcb.ca.gov/rwgcb5 <br />