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WASTE DISCHARGE REQUIREMENTS ORDER NO. R5-2002-0213 • 4 <br /> U.S. DEPARTMENT OF DEFENSE <br /> DEFENSE LOGISTICS AGENCY <br /> DEFENSE DISTRIBUTION DEPOT SAN JOAQUIN <br /> SHARPE GROUNDWATER REMEDIATION SYSTEM <br /> SAN JOAQUIN COUNTY <br /> designated by the Regional Boards with the exception of:...2. Surface waters where: ...b. <br /> The water is in systems designed or modified for the primary purpose of conveying or. <br /> holding agricultural drainage waters,provided that the discharge from such systems is <br /> monitored to assure compliance with all relevant water quality objectives as required by <br /> the Regional Boards." The SSJID Canal is a"waters of the State" and, therefore, is <br /> subject to Resolution 88-63. From the point of effluent discharge from the DDJC-Sharpe <br /> outfall, water in the SSJID Canal flows northward in a channel which is primarily earthen <br /> lined,but concrete lined in certain areas. No domestic or municipal supply water intakes <br /> have been observed along the length of the channel. <br /> Based on available information,the Regional Board finds that municipal and domestic <br /> supply is not an existing or likely future beneficial use of the SSJID Canal and that it <br /> would be appropriate to consider de-designating the beneficial use of MUN for the SSJID <br /> Canal. The Regional Board has not established water quality objectives specific to the <br /> SSJID Canal. This Order requires the Discharger to monitor the quality of water in the <br /> SSJID Canal up and down stream of the discharge, and also monitor the quality of water <br /> in French Camp Slough up and down stream of the confluence with the SSJID Canal. <br /> With the exception of arsenic, this Order establishes effluent and receiving water <br /> limitations that are protective of MUN in the SSJID and French Camp Slough. With <br /> respect to arsenic, this Order establishes a receiving water limit that protects MUN in <br /> French Camp Slough and establishes interim effluent limitations for the discharge to the <br /> SSJID Canal and requires a study to evaluate whether additional protection is needed. <br /> The Discharger may also provide information to the Regional Board to supporta Basin <br /> Plan amendment to de-designate MUN based on the exceptions to Resolution 88-63. <br /> 2) Agricultural Supply <br /> Downstream from the point of effluent discharge from the DDJC-Sharpe outfall, the <br /> SSJID Canal flows northward, adjacent to active fanning and agricultural activities. <br /> While no agricultural supply water intakes were noted along the length of the SSJID <br /> Canal, and agricultural supply is not an existing beneficial use of the SSJID Canal, it may <br /> be a potential use in the future. A review of currently available data associated with the <br /> effluent discharge indicates the discharge does not exceed water quality criteria and <br /> objectives for agricultural use. No effluent limitations in this Order are associated with <br /> protection of this beneficial use. Future updates of this Order will continue to reconsider <br /> the existing or potential use of the SSJID Canal as a source of agricultural supply water. <br /> 3) Industrial Supply <br /> No industrial supply water intakes were noted along the length of the SSJID Canal, and <br /> while industrial supply is not an existing beneficial use of the SSJID Canal, it may be a <br /> potential use in the future. A review of currently available data associated with the <br /> effluent discharge indicates the discharge does not exceed water quality criteria and <br />