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WASTE DISCHARGE REQUIREMENTS ORDER NO. -2- <br /> FOR ALLIED WASTE INC. &FORWARD INC. <br /> AUSTIN ROAD LANDFILL <br /> CLASS III LANDFILL <br /> SAN JOAQUIN COUNTY <br /> with the requirements-of a prescriptive standard cover as outlined in Title 27'Section <br /> 21090. <br /> 6. The Discharger proposes to merge Austin Road and Forward landfills into one facility, <br /> combining the WDRs for the two sites into one. A Joint Technical Document with site <br /> development plans for the combined landfills has been submitted to the Regional Board <br /> for review. Consideration of new Waste Discharge Requirements for the resulting <br /> merged facility must wait for completion of the CEQA process and these WDRs consider <br /> only continued operation and implementation of corrective actions at Austin Road <br /> Landfill. <br /> 7. The Discharger proposes to relocate South Littlejohns Creek north of LF-1 as part of the <br /> plan to merge the two landfill facilities. Permitting for the stream relocation is ongoing, <br /> by other agencies. <br /> WASTES AND THEIR CLASSIFICATION <br /> 8. The Discharger proposes to discharge Class III municipal solid waste for disposal in the <br /> existing waste management unit LF-1. These wastes are classified as 'nonhazardous solid <br /> waste' or'inert waste', using the criteria set forth in Title 27. <br /> 9. Methane gas will continue to be collected and used in a power plant, developed by Pacific <br /> Energy in 1986. The power plant produces up to 760 kilowatts per hour of electrical <br /> power,which is sold to Pacific Gas &Electric (PG&E) under a long-term agreement. <br /> Improvements to the gas collection facilities may generate more gas than the power plant <br /> can use. Any gas in excess of power plant requirements will be disposed in a manner that <br /> complies with the requirements of the Air Board. <br /> DESCRIPTION OF SITE <br /> 10. Land within 1000 feet of the facility is used for agricultural and landfilling activities to <br /> the south; the Northern California Youth Center to the north; and the Pacific Energy <br /> methane gas recovery system on the west end of the site. <br /> 11. Soils immediately underlying the landfill are valley fill deposits consisting of Cretaceous <br /> to Quaternary sediments. The first 20 to 40 feet are silty clay(CL) and sandy or clayey <br /> silts (ML). Below this is an interval of sands (SM, SC, and SW) down to 55 or 60 feet. <br /> Below this are more of the silts and clays down to at least 80 feet. <br /> y <br />