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KLEINFELDER <br /> 2 WASTE CHARACTERISTICS <br /> J-M Mfg. requests in this RWD that the WMUs be treated as unclassified units containing inert <br /> waste. In support of this request, characteristics of the waste contained in the WMUs are <br /> discussed in this chapter. <br /> 2.1 TYPES, QUANTITIES AND CHARACTER OF WASTE <br /> 2.1.1 Types of Waste <br /> Kleinfelder understands that prior to 1972, asbestos/cement (A/C) pipe manufacturing was the <br /> only activity at the site. The A/C pipe was manufactured using several different types of <br /> asbestos fibers which compromised 15 percent of pipe by weight. Since 1972, the <br /> manufacturing of the polyvinyl chloride (PVC) pipe has gradually replaced the A/C pipe <br /> production. Currently, only the PVC pipe is manufactured at the plant. <br /> �■1f Five areas at the site have received waste in various forms. For clarity in this RWD, these <br /> areas have been have designated as WMUs and are shown on Plate 2-1. WMU-A consists of <br /> two settlement ponds. -B, WMU-C, WMU-D, WMU-E, and WMU-F are landfills. <br /> WMU-D is a new potential landfill area that was found during the ,1991 soil investigation. <br /> Section 4.1 discusses previous investigations including the SWAT investigation. In that <br /> report, individual WMUs were grouped into zones. Zone 1 contains WMU-B and C, Zone 2 <br /> contains WMU-E, and Zone 3 contains WMU-F. <br /> The landfills and surface impoundments at the J-M facility currently receive no waste. Waste _ <br /> was last placed in the WMUs on July 30, 1987. The landfill areas are covered with soil from <br /> on site and the surface impoundments are open but do not receive waste water. An irrigation <br /> pipe system is used to sprinkle the ponds for dust control measures. <br /> Historically, wastes generated at the site were by-products of the A/C pipe manufacturing <br /> process. <br /> CR14-92-12 Page 3 of 39 24-220109-1709 <br /> Copyright 1992 Kleinfelder, Inc. <br />