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STATE OF C=ALIFORNIA—ENVIRONMENTAL PROTECTION AGENCY PETE WILSON.Govemor '?" CALIFORNIA REGIONAL WATER QUALITY CONTROL BOARD— CENTRAL VALLEY REGION •,�`°"""� • 3443 ROUTIER ROAD,SUITE A SACRAMENTO,CA 95827~3098 PHONE: (916)255-3000 + FAX: (916)255-3015 " 20 October 199!+ CERTIFIED MAIL, Z 079 346 028 Mr. Jerry Moore P.O. Box 67 Banta, California 95304 NOTICE OF APPLICABILITY OF GENERAL ORDER FOR LAND DISPOSAL OF GROUND WATER, MOORE PETROLEUM - FRANK'S EXXON #4, SAN JOAQUIN COUNTY (ORDER NO. 91-25013) Moore Petroleum submitted a Report of Waste Discharge (RWD) dated 7 September 1994 for the above referenced project. Based on the information in your submittal, it is our determination that this project meets the required conditions to be approved under our General Order for Land Disposal of Groundwater from Cleanup of Petroleum Fuel Pollution (General Order). Enclosed is a copy of the General Order. All the requirements contained in the General Order will be applicable to your project. You are hereby assigned General Order No. 9I-25013 for the ground water cleanup of Frank's Exxon#4 at 14800 W. Frontage Road in Manteca. Enclosed is a copy of Monitoring and Re ortin Program N P g g o. 91-25000 which prescribes minimum wastewater monitoring requirements for compliance with the General Order. Please note that the monitoring and reporting program sets forth minimum requirements,and that additional monitoring may be necessary for process control or for evaluating the effectiveness of the ground water extraction and reinjection systems at your site. PROJECT LOCATION The contaminant plume,extraction well, treatment system and injection wells are at 14800 W. Frontage Road in Manteca, California in Section 20,TIS, R7E,MDB&M, as shown in Attachment 1, which is attached and part of this Order by reference. PROJECT DESCRIPTION Moore Petroleum proposes to extract ground water from existing onsite ground water monitoring wells,MW_1, MW-2,MW-3, and MW-4 (see attachment 2). The combined extraction rate is anticipated to be approximately 4 gpm but could go as high as 8 gpm if needed for plume capture. Groundwater will be treated to remove Total Petroleum Hydrocarbons (TPI) and Benzene, Toluene, Ethylbenzene, and Xylene (BTEX)constituents to less than 0.5 µg/1 using a spray aeration and vacuum extraction system. If necessary, carbon polishing will be utilized to achieve required cleanup concentrations. Treated ground water will be discharged through two injection wells,RW-1 and RW-2 upgradient of the plume. The design flow of the treatment system is 8 gpm (0.0144 mgd). . GENERAL INFORMATION I. The project shall be constructed and operated in accordance with the requirements contained in the General Order and in accordance with the information submitted in the report of waste discharge.