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<br />ORDER NO. R5-2015-0058 -4- <br />SAN JOAQUIN COUNTY DEPARTMENT OF PUBLIC WORKS <br />FOOTHILL SANITARY LANDFILL, INC. <br />FOOTHILL LANDFILL <br />SAN JOAQUIN COUNTY <br /> <br /> <br /> <br />Drainage <br />Surface drainage from the site flows into a network of streams and creeks that meander <br />toward the southwest, ultimately emptying into Mormon Slough. Mormon Slough is partially <br />tributary to the Stockton Diverting Canal, which drains into the Calaveras River, a tributary of <br />the San Joaquin River. The remainder of Mormon Slough flows directly into the San Joaquin <br />River in Stockton. The San Joaquin River discharges into the Sacramento-San Joaquin <br />River Delta northwest of Stockton. (JDM) <br /> <br />Leachate and LFG Condensate <br /> <br />A Class II surface impoundment, named Calaveras SI, will be utilized for leachate management <br />at the Facility. Calaveras SI can intake LFG condensate from LF-1, LFG condensate from LF-2, <br />and leachate from LF-2. The comingling of liquid waste from LF-1 and LF-2 into Calaveras SI <br />creates a terminus point for the liquid waste, i.e. the waste cannot be returned back into LF-2. <br />Leachate and LFG condensate from LF-2 can return to LF-2 under Title 27 and this WDR from <br />the sumps that collect the liquid waste. The current water balance that has been submitted only <br />has capacity for liquid waste to be discharged into Calaveras SI from LF-1 and LF-2. <br />