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April 4, 2012 clear of debris and excessive vegetation, and making needed repairs to drainage structures. Corrective measures will be implemented if inspections show excessive erosion or damage to drainage channels. Eroded areas will be mitigated by removing loose debris followed by replacement, regrading, and compacting the area. Monitoring and protection against sediment from entering the Littlejohns stream channel will be implemented, including the diversion of part of Littlejohns Creek farther away from the landfilled area. In order to minimize sediment transport to the Littlejohns Creek, landfill slopes, ridgetops, and peripheral areas will be revegetated to inhibit erosion. Current Status: The stormwater control measures are being implemented as discussed above and in accordance with the JTD. d. 46 (F.3) Proposed as Part of the Project: The liner and leachate collection system for the expansion system —both over the top of the existing unlined Austin Road landfill and the extension of the existing leachate collection system at Forward-- have been designed to meet or exceed the regulatory requirements as shown and discussed in the applicants JTD. The JTD and the adequacy of the leachate collection system and associated monitoring are under review by the RWQCB. The regulatory required separation between the liner and groundwater will be implemented to allow for chemicals in the leachate to attenuate before reaching the groundwater, should the leachate breach the collection system. The project design includes a leak detection system under the sumps. 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 contamination if a break occurs in the liner or the leachate collection system. A double liner shall be installed under the sump area, as required by the RWQCB; Page 25