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Water Quality control Board '' <br /> %, California Regional Q y _ ., <br /> Central Valley Region <br /> Steven T.Butler,Chair <br /> Winston 1-1.ltickox Cray Davis <br /> Secreiatyfor Sacramento Main Office �'' GoVCrnor' <br /> Environmental Internet Address: http://www.swrcb.ca.gov/—rwgeb5 <br /> Protection 3443 Routier Road,Suite A.Sacramento,California 95827.3003 <br /> Phone(91 G)255-3000•FAX(91 G)255-3015 <br /> 16 November 2000 <br /> Brad Beeman <br /> Naval Computer and Telecommunications Station, <br /> San Diego Detachment <br /> 305 Fyffe Ave., AC-43 <br /> Stockton, CA 95203 <br /> DRAFT FINAL ENVIRONMENTAL INVESTIGATIONAND CLOSURE REPORT, Oii'S <br /> SITES A T BLDGS. 12, 410A,AND 508, VOL UME I AND II, NA VAL COMPUTER AND <br /> TELECOMMUNICATIONS STATION(NCTS), SAN DIEGO DETACHMENT, STOCKTON <br /> We have reviewed the Draft Final Environmental Investigation and Closure Report, OWS Sites <br /> at Buildings 12, 410A, and 508, Volume I and II, dated June 2000, as prepared by AGS, Inc. <br /> These three OWS (Oil Water Separator) sites are located on the northern part of NCTS, <br /> Stockton, two of which are adjacent to the Stockton Deep Water Channel. We have provided <br /> comments on each site as below: <br /> Building 12 OWS <br /> The NCTS Fire Department utilized Building 12 as a storage area for two fire boats and <br /> equipment. The OWS was associated with a boat wash-down area, which was used <br /> intermittently to rinse the boats exteriors. The principal elements of the OWS system include the <br /> Building 12 catch basin, a wash pad catch basin, an OWS, a 285-gallon waste oil tank, and <br /> connected piping. The OWS system was installed in 1988 and has subsequently ceased <br /> operations in approximately 1997. The OWS was cleaned out and fluids were removed from the <br /> waste-oil tank as part of the Navy's decommissioning of the OWS system in 1999. The contents <br /> of the waste oil tank were removed and the interior of the tank was pressure washed, as well as <br /> steam cleaning the interior of the vault containing the tank. The catch basin, OWS and floor <br /> drain inside Building 12 were decommissioned by filling the components with cement. <br /> Investigations in September and October of 1999 included soil and grab groundwater sampling <br /> for TEH as diesel, TEH as motor oil, TVH as gasoline, BTEX, gas oxygenates, VOCs, SVOCs, <br /> PCBs, and CAM 17 metals. Based upon analytical results, we find that there is no significant <br /> risk to the environment from the former OWS system. <br /> Based on the information in the above-referenced document and with the provision that the <br /> information provided to this agency was accurate and representative of site conditions, this <br /> agency finds that the site investigation at Building 12 for the former OWS requires No Further <br /> Action. <br /> California Environmental Protection Agency <br /> �a Recycled Paper <br />