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WASTE DISCHARGE REQUIREMENTS ORDER NO. R5-2003-0049 -12- FORWARD INC. AND ALLIED WASTE INDUSTRIES FOR OPERATION OF FORWARD CLASS 11 LANDFILL SAN JOAQUIN COUNTY 58. The surface impoundment will have a geonet LCRS blanket across the entire area of the pond. The LCRS sump will be constructed of a gravel collection area and will have the capacity to store a minimum of twice the maximum anticipated daily volume of leachate. Liquids removed from the LCRS will be returned to the surface impoundment. The sump includes with a high level alarm, if liquids trigger the level alarm the sump will be pumped out. 59. The Discharger proposes a pan lysimeter under the LCRS sump as an unsaturated zone monitoring system per the requirements of Title 27 Section 20415(d). The pan lysimeters will include a sump area that is accessed with a pipe. Any liquids that are detected in the VZMS sump will be removed and returned to the surface impoundment. The sump will include a high-level alarm, if liquids trigger the level alarm the sump will be pumped out. 60. The existing landfill gas extraction system at Austin Road landfill consists of 30 vertical gas extraction wells, a horizontal gas collection trench, a gas collection pipe system with condensate collection,and a gas-to energy electrical power plant. The existing system did not capture all landfill gas generated by the landfill and the system is currently undergoing expansion. The expansion consists of 74 vertical gas extraction wells, a gas collection system with condensate collection, and a flare station to incinerate the gas. 61. Old Forward landfill has a landfill gas extraction to capture gas from Waste Management Unit B. The system consists of 18 vertical gas extraction wells and a gas collection pipe system with condensate collection. Gas from Forward is piped to the Austin Road flare station. 62. The landfill gas extraction system will expand as needed. The discharger will monitor soil gas for VOCs and when they are detected the extraction system will expand to cover those areas. 63. Landfill gas condensate will be collected and pumped to a holding tank near the flare station. Landfill gas condensate is tested at least annually. If testing indicates the condensate should be classified as hazardous waste, then the Discharger will contract with a licensed hazardous waste hauler to dispose of the condensate. Otherwise condensate will be treated, or disposed of at an appropriate facility. CEQA AND OTHER CONSIDERATIONS 64. The San Joaquin County Community Development Department certified the final negative declaration for the facility on 6 February 2003. The Regional Board considered the negative declaration and incorporated mitigation measures from the negative declaration into these