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WASTE DISCHARGE REQUIREMENTS ORDER NO. R5-2010-0016 -2- <br />SAN JOAQUIN COUNTY DEPARTMENT OF PUBLIC WORKS <br />NORTH COUNTY LANDFILL <br />SAN JOAQUIN COUNTY <br /> <br /> <br />maintenance building; scale house; pump station; and a materials recovery facility <br />(MRF), as shown in Attachment B, which is incorporated herein and made part of <br />this Order. <br />4. The landfill currently consists of three waste disposal modules (M1, M3, and M4) <br />constructed on 53 acres along the western side of the unit, as shown in <br />Attachment B. Seven additional modules (M5 through M11) will be constructed on <br />an as-needed basis on the remaining 132 acres of the unit area. The Discharger <br />currently estimates that Module M5 will be constructed in 2012. The development <br />status of the landfill may be summarized as follows: <br />Module Year <br />Constructed <br />Size, <br />acres Location Status <br />11 1991 27 NW Inactive <br />3 1995 14 West-NW Partially Active <br />4 2003 12 West-Central Active <br />5 - 11 ---2 132 SW, East Half Not yet <br />constructed <br />______________________ <br />1. Includes area originally planned for Module 2, which was never constructed. <br />2. Future modules to be constructed on as needed basis. <br /> <br />SUBTITLE D <br />5. On 9 October 1991, the United States Environmental Protection Agency (USEPA) <br />promulgated MSW landfill regulations under the Resource Conservation and <br />Recovery Act (RCRA) known as “Subtitle D” (Code of Federal Regulations, title 40, <br />part 258). Subtitle D applies to all California Class II and III landfills that both (a) <br />accepted MSW and (b) accepted any waste on or after the effective date of <br />Subtitle D (9 October 1991). Limited exceptions include (a) MSW landfills that <br />ceased accepting wastes prior to the federal deadline (may only be required to <br />comply with the closure requirements); (b) MSW landfills that were constructed <br />prior to the federal deadline (may, to extent of pre-deadline footprint, be exempt <br />from the design requirements); and (c) small rural landfills per 40 CFR 258.1(f) (in <br />California, exempt from the design requirements). <br />WASTE AND UNIT CLASSIFICATION <br />6. The landfill accepts wastes defined as “inert” and “nonhazardous” under Title 27, <br />sections 20230 and 20220, respectively. The landfill also accepts MSW as defined <br />in Title 27, Section 20164. Recyclable wastes are generally diverted to the MRF. <br />7. Approximately 400 tons per day (144,000 tons per year) of wastes, including <br />MSW, commercial wastes, and construction and demolition debris, were