COMPLIANCE INFO_2023 CVRWQCB WASTER DISCHARGE REQUIREMENTS

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DRAFT [TENTATIVE] WASTE DISCHARGE REQUIREMENTS ORDER R5-2023-00XX 23 FORWARD, INC. FORWARD LANDFILL SAN JOAQUIN COUNTY impairment. (Title 27, sec. 20080, subds. (b)-(c); State Water Board Resolution 93-62). 74.A Liner Performance Demonstration for a Single Composite Liner (GLA, 2002) was submitted to and approved by the Central Valley Water Board for final determination of the existing base liner design. Future landfill modules shall have an engineered alternative base and side slope outlined in Attachment E, which is incorporated herein. 75.The Discharger submitted Construction Plans for the construction of new WMUs at the Facility, specifically the Infill Expansion Area located within the proposed WMU H unit and Future FU unit, which incorporate an engineered alternative, as outlined in Finding 73. 76.The Discharger proposes to construct new Class II surface impoundments (WMU F East and WMU F South, see Table 1) as needed to contain and evaporate leachate from solid waste management units. An engineered alternative to the prescriptive liner requirements of Title 27 is proposed for the Class II Surface Impoundments. The engineered alternative is outlined in Attachment E. 77.The Discharger has adequately demonstrated that construction of a liner in accordance with the Title 27 prescriptive standard is infeasible, as it would be unreasonably and unnecessarily burdensome in comparison to the proposed engineered alternative. The Discharger has further demonstrated that the proposed engineered alternative(s), as described in Attachment E, are not only consistent with the performance goals of the prescriptive standard, as described above, and will afford at least equivalent water quality protections. 78.New WMUs will incorporate the LCRS described in further detail on Attachment E. The proposed LCRS comply with Title 27 prescriptive standards (see Title 27, sec. 20340). Collected leachate is either recirculated to composite-lined landfill units or discharged to one of the on-site Class II impoundments. Recirculated leachate may be discharged by spraying from a tanker truck or by subsurface injection. 79.The unsaturated zone monitoring system for future modules shall be implemented in accordance with the operative MRP. 80.Pan lysimeters will be installed beneath the LCRS sump in each new landfill cell/module for the purpose of vadose zone monitoring. The designs for pan lysimeters are described in Attachment E. 81.The Discharger proposed to install an intermediate liner where modules are constructed over the existing Class III waste disposal area. The design for intermediate liners is described in Attachment E. An intermediate liner was