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DRAFT [TENTATIVE] WASTE DISCHARGE REQUIREMENTS ORDER R5-2023-00XX 8 <br />FORWARD, INC. <br />FORWARD LANDFILL <br />SAN JOAQUIN COUNTY <br />a.Solid waste disposal facility <br />b.Transfer station/materials recovery facility (MRF) <br />c.Composting facility <br />d.Office <br />e.Scale house <br />f.Maintenance areas <br />g.Landfill gas extraction system <br />h.Gas-to-energy plant <br />i.Landfill gas flare <br />j.Groundwater remediation system <br />k.Wheel wash station (Tracinator) and concrete basin <br />l.Land application area (LAA) <br />12.WMU A, a Class I unit, accepted hazardous waste from 1979 to 1984. WMU A <br />was closed in 1989 and is currently in the post-closure maintenance period under <br />the oversight of the Department of Toxic Substance Control (DTSC) and <br />Environmental Protection Agency (EPA). WMU A is regulated by Hazardous <br />Waste Postclosure Facility Permit EPA ID No. CAD990794133. <br />13.The 123.9-acre unlined Austin Road Landfill does not contain a base liner or <br />LCRS. An intermediate liner system was constructed, or will be constructed, to <br />separate Class III waste in unlined or non-Subtitle D lined existing WMUs from <br />adjacent Class II WMUs (see Attachment E). At approximately 90 feet MSL, the <br />top of former Austin Road Landfill was graded to drain south, and a final cover <br />was placed on top of the northern slope and portions of the western slope. The <br />intermediate liner system was utilized along the southern slope (see Finding 81) <br />in support of additional waste being placed over the former Austin Road Landfill. <br />The eastern slope will utilize an intermediate liner system as cover when Phase 1 <br />and Phase 3 expand the landfill to the east (Attachment G). The former Austin <br />Road Landfill is therefore partially closed. <br />14.On 13 November 2019, WMU FU-19 was completed connecting the Forward and <br />Austin Road landfills. WMU FU-19 ties into the southern side of WMUs FU-06, <br />FU-08, FU-10, and FU-14 together with the northern side of WMU D-02, D-93, <br />and D-95.