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California Regional Water Quality Control Board Central Valley Region Steven T.Butler,Chair (a `Kinston H.Hickox Gray Davis Secretaryfor Sacramento Main Office Governor Environmental Internet Address: http://w .sweb.ca.gov/—mgcb5 Protection 3443 Routier Road,Suite A,Sacramento,California 95927-3003 Phone(916)255-3000•FAX(916)255-3015 6 November 2000 Certified Mail Certified Mail 7099 3220 0005 3846 3670 7099 3220 0005 3846 3694" Mr. Richard Bokides Mr.Nick Dingsa P.O. Box 1411 6421 Capitol Avenue Woodbridge, CA 95258 Lodi, CA 95242 NOTIFICATION OF APPLICABILITY OF GENERAL WASTE DISCHARGE REQUIREMENTS GENERAL ORDER NO. 5-00-119,NPDES NO. CAG915001 —DISCHARGE TO SURFACE WATERS FROM GROUNDWATER CLEANUP OF PETROLEUM FUEL POLLUTION, FLAG CITY CHEVRON, LODI, SAN JOAQUIN COUNTY We have received an application package for the above referenced groundwater petroleum remediation project on 19 October 2000 and supplemental material, which completed the package on 26 October 2000. Based on the information in the submittal, we have determined that the project meets the required conditions for approval under the General Order for Discharge to Surface Waters of Groundwater From Cleanup of Petroleum Fuel Pollution (General Order No. 5-00-119). The application is for the discharge of treated groundwater to surface waters generated from an ongoing petroleum groundwater remediation project. Cleanup Abatement Order 5-00-700 required the project to begin 1 November 2000; however, actual discharge to surface water has not yet commenced. You are hereby assigned General Order No. 5-00-11901 for the project. PROJECT LOCATION AND DESCRIPTION The project is located along the northwestern outskirts of the City of Lodi in an unincorporated portion of San Joaquin County. The facility, known as Flag City Chevron, is situated east of Interstate 5 and south of State Highway 12, on the northeast corner of Thornton Road and Capitol Avenue. The point of discharge is proposed to a private agricultural return ditch known as Coldani Ditch at latitude N 380 06' 56" and longitude W 121° 23' 42". This ditch drains westward beneath Interstate 5 to the Upland Canal, which flows south into White Slough. In March 1995, four underground fuel tanks were removed and replaced to meet 1998 upgrade requirements. At the time of the replacement, shallow groundwater was identified to be contaminated with dissolved petroleum constituents. More recent groundwater monitoring results indicate that the primary dissolved constituents include: TPH-gasoline (11,000 µg/1), TPH-diesel (250 µg/1), and MTBE (11,000 µg/1). Other petroleum related contaminants including benzene, toluene, ethyl benzene, xylenes, California Environmental Protection Agency pia Recycled Paper