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WASTE DISCHARGE REQUIREMENTS ORDER R5-2015-0058-01 -40- SAN JOAQUIN COUNTY DEPARTMENT OF PUBLIC WORKS FOOTHILL SANITARY LANDFILL, INC. FOOTHILL LANDFILL SAN JOAQUIN COUNTY b. The beneficial reuse of inert materials in final cover construction/repair (e.g., foundation layer, side slope buttresses, berms) consistent with Discharge Specification B.8; c. The stockpiling of inert materials for beneficial reuse described above; and d. The beneficial reuse of inert liquids for construction or maintenance purposes consistent with Discharge Specification B.8.c. 3. The following discharges of leachate and/or landfill gas condensate are prohibited, except as specifically authorized in Section B.9: a. The return or discharge of leachate and/or LFG condensate to unlined unit LF-1; b. The discharge of LF-1 leachate and/or LFG condensate to LF-2 after 15 October 2016 (see Discharge Specification B.6); c. The return or discharge of leachate and/or LFG condensate to closed units or closed portions of units; and d. The use of leachate and/or LFG condensate for dust control. See 40 CFR 258.28(a)(2) and Title 27, sections 20090(e)(2), 20200(d) and 20340(g). 4. The Discharger shall comply with all Standard Prohibitions listed in Section C of the Standard Provisions and Reporting Requirements (SPRRs) incorporated into this Order under Finding 2. B. DISCHARGE SPECIFICATIONS 1. The Discharger shall only discharge the wastes listed or allowed under the Waste Classification and Unit Classification section in the Findings of this Order. 2. The Discharger is not authorized to use any material as alternative daily cover (ADC) other than tarps unless and until the Discharger has demonstrated that a proposed ADC meets the requirements in Title 27, section 20705, and the Discharger has received written approval by the Executive Officer that it may begin using the material as ADC. 3. The Discharger shall use approved ADC only in internal areas of the landfill that do not drain outside of the limits of the contiguous landfill units unless the Discharger demonstrates that runoff from the particular ADC is not a threat to surface water quality and the demonstration has been approved in writing. This demonstration may take removal of sediment or suspended solids into account for landfills where surface water drains to a sedimentation basin 4. If any waste is discharged at this facility in violation of this Order, the Discharger shall timely report such unauthorized discharge to the Central Valley Water Board and relocate the waste for proper disposal. If the Discharger is unable to remove and relocate the waste, the Discharger shall submit a report to the Water Board