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Draft Supplemental Environmental Impact Report Page II-23 Forward Inc.Landfill 2014 Expansion Project and stamped by a Professional Engineer registered in the State of California. In addition,both the RWQCB and CalRecycle will review and must approve the erosion control system design as part of issuance of WDRs and the SWFP, respectively. F.3. Groundwater Proposed as Part of the Project. Less than contamination would • A double liner would be installed under the sump area, as previously Significant result if the leachate required by the RWQCB for the existing Forward Landfill; collection systems for the The liner and leachate collection system for the new expansion areas would expansion areas fail. have new a leachate management system. This would be articulated in the applicants new JTD. The JTD and the adequacy of the leachate collection system and associated monitoring would be reviewed by the RWQCB; • The regulatory required separation between the liner and groundwater shall be implemented to allow for chemicals in the leachate to attenuate before reaching the groundwater, should the leachate breach the liner and leachate collection system; • Electric testing of the liner in each Waste Management Unit shall be conducted before waste can be disposed in that Unit, as required by the RWQCB; • If any modifications to the leachate collection system and associated monitoring described in the upcoming JTD are required by the RWQCB,the landfill operator shall implement those changes; • The project design will include a leak detection system (lysimeters)under the sumps to assess and control potential leakage before it can reach groundwater; • The liner system will be overlain by a protective operations layer consisting of a one-foot thickness of soil and a one-foot thick gravel layer that serves as the leachate collection layer. This two-foot layer will serve to protect the liner system from sharp or jagged materials in the waste. • The operator will remove any hazardous materials spotted during delivery, thus minimizing the potential for leachate impacts to groundwater if a break