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SEMINAR PUBLICATION: DESIGN AND CONSTRUCTION OF RCRA/CERCLA FINAL COVERS
Citation:
U.S. EPA. SEMINAR PUBLICATION: DESIGN AND CONSTRUCTION OF RCRA/CERCLA FINAL COVERS. EPA/625/4-91/025, 1991.
Impact/Purpose:
information
Description:
Cover systems are an essential part of all land disposal facilities. Covers control moisture infiltration from the surface into closed facilities and limit the formation of leachate and its migration to ground water. The Resource Conservation and Recovery Act (RCRA) Subparts G, K, and N form the basic requirements for cover systems being designed and constructed today. The Comprehensive Environmental Response, Compensation, and Liability Act (CERCLA) refers to RCRA Subtitle C regulations, and many states have their own more stringent requirements. This seminar publication provides regulatory and design personnel with an overview of design, construction, and evaluation requirements for cover systems for RCRA/CERCLA waste management facilities. It offers practical and detailed information on the design and construction of final covers for both hazardous and nonhazardous waste landfills that comply with these requirements. Areas covered include: (a) soils used in cover systems, (b) geosynthetic design for landfill covers, (c) durability and aging of geomembranes, (d) alternative cover designs, (e) construction quality assurance for soils, and (f) construction quality control for geomembranes, (g) hydrological evaluation of landfill performance (HELP) model for design and evaluation of liquids management systems, (h) sensitivity analysis of HELP model parameters, (i) gas management systems, (j) case studies RCRA/CERCLA closures, and (k) postclosure monitoring.