ARCHIVED REPORTS_2017 - Laserfiche WebLink

Home Browse Search

SECTION 1 Introduction The Forward Landfill is an active, permitted Class II and Class III disposal facility that is owned and operated by Forward, Inc. (Forward), a subsidiary of Republic Services. The landfill is located approximately seven(7)miles southeast of the City of Stockton in San Joaquin County. This report presents the design and construction documents for the development of Waste Management Unit (WMU) FU-17 at the Forward Landfill. WMU FU-17 is located directly east of WMU FU-13 and FU-14 in the area formerly known as the Austin Road Landfill expansion area. The location of WMU FU-17 is shown on the Site Plan(see the Construction Drawings in Appendix A). The design and construction documents for WMU FU-17 were prepared in accordance with Forward's approved Joint Technical Document (JTD), Waste Discharge Requirements (WDR Order No. R5-2014-0006), and applicable regulations. The applicable state regulations include California Code of Regulations (CCR), Title 27, Division 2 (Title 27). The federal regulations are incorporated in 40 Code of Federal Regulations(CFR), Parts 257 and 258 (Subtitle D). Some of the provisions of particular importance regarding the design include: • The WMU FU-17 liner and leachate collection and removal system (LCRS) design conform to the prescriptive standards of both Title 27 and Subtitle D. • Seismic studies have indicated that the Forward Landfill site is not located within 200 feet of a Holocene aged fault (GeoSyntec, January 2001) and therefore complies with the regulatory provision regarding active faults. The base liner in WMU FU-17 will encompass approximately 8 acres and is approximately 1200-feet in the north-south dimension and 300-feet in the east-west dimension. The top of clay liner on the base of WMU FU-17 will be at approximately elevation 3-feet to 8-feet, which is about 30 to 38-feet below the surrounding ground surface. A composite lining system consisting of a 2-foot-thick clay liner overlain by a 60-mil, high-density polyethylene(HDPE) geomembrane, and LCRS consisting of 1 foot of granular drainage material will be constructed on the WMU FU-17 base. The base liner of WMU FU-17, and future cells constructed to the east of WMU FU-17, will be sloped to drain at a minimum one percent grade to the east. Four temporary, composite lined sumps will be constructed at the eastern edge of the WMU FU-17 base. Leachate will be collected and pumped out of tanks located in the composite lined sumps. WMU FU-17 DESIGN REPORT 1