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STATE OF CALIFORNIA GEORGE DEUKMEJIAN.Governor CALIFORNIA REGIONAL WATER QUALITY CONTROL BOARD-- CENTRAL VALLEY REGION -� 3443 ROUTIER ROAD SACRAMENTO.CA 95827-3098 HSI E C Et 1 V E DR) i JUN 2 9 1990 Mr. Kyle Christy UNVI RONMENTALHEALTH 26 June 1990 Arco Petroleum Products Company F ER MIT/SERVICES P.O. Box 5811 San Mateo, CA 94403 I ARCO SERVICE STATION #434, 501 KETTLEMAN LANE, LODI - DISPOSAL OF TREATED GROUND WATER Arco Petroleum Products Company (ARCO) first submitted a National Pollutant Discharge Elimination System (NPDES) permitapplication for the discharge of - ' treated ground- water from t'his� site on 26 Mly 1989. , Since--that time we.have�`_'.�: �. worked with ARCO's consultant, Brown and Caldwell Consulting Engineers and the ;E City of Lodi to resolve the issue of disposal of treated ground water. Typically, treated ground water is discharged off-site to either a publicly owned treatment works (POTW) under permit f>jom the sewering agency, or to a surface drainage channel under an NPDES permit. A third alternative is to discharge the treated effluent on-site under waste discharge requirements (WDRs) adopted by the Regional Water Quality Control Board (RWQCB) . However, because neither the City of Lodi , which controls the POTW, nor the Woodbridge Irrigation District, which controls the surface drainage channels will accept the discharge, disposal options are limitedi Furthermore, due to the small size of the property, on-site disposal is ndt feasible. Therefore, a more creative approach will be necessary to dispose of the treated effluent. The City of Lodi may allow the treated effluent to be piped to landscape areas for irrigation, or to an off-site area for surface infiltration. Either of ;i these off-site disposal options would require a cooperative agreement between ARCO and the City of Lodi , and adoption of WDRs by the RWQCB. We suggest that ARCO meet with Board staff and representatives of the City of Lodi and perhaps the Woodbridge Irrigation District to develop an appropriate means of disposal or reuse of the treated effluent. By 13 July 1990, please -� let -us -know -when--you-wi�l1 be--meeting--with - e-parties mentioned above,_.or-,.7— whether r .7—whether you will develop an alternative means of disposal . ' If you have any questions, please call me at (916) 361-5731. THOMAS D. PELTIER Associate Engineering Geologist TDP:tddp cc:/Ms. Laurie Cotulia, San Joaquin County Public Health Services, Stockton Mr. Jay Lucas, Brown and Caldwell Consultants, Sacramento Mr. Jack L. Ronsko, City of Lodi