| | Liner Design Guidance for Confined Disposal Facility Leachate |
| | 0,49 | | MB | Control |
| | 25 | | stron |
| | 2707 | | ID | UNITED STATES ARMY CORPS OF ENGINEERS |
| | 2005 | | rok |
| | BACKGROUND: A CDF is an engineered structure designed to provide the required storage volume |
| | for dredged material and to meet the required suspended solids concentration in effluent released |
| | from the facility. Procedures for design of CDFs for storage volume and for suspended solids |
| | retention are provided in Engineer Manual 1110-2-5027 (U.S. Army Corps of Engineers (USACE) |
| | 1987). A CDF may be constructed as an upland site, as a nearshore site with one or more sides |
| | exposed to the water, or as an island containment area. The joint USACE and U.S. Environmental |
| | Protection Agency (USEPA) document “Evaluating Environmental Effects of Dredged Material |
| | Management Alternatives—A Technical Framework” (USEPA/USACE 2004) provides guidance for |
| | selecting an appropriate dredged material disposal alternative. “Evaluation of Dredged Material |
| | Proposed for Disposal at Island, Nearshore, or Upland Confined Disposal Facilities – Testing |
| | Manual” (USACE 2003) further provides procedures for identifying contaminant loss pathways |
| | (Figure 1) requiring control measures necessary for any disposal alternative. Leachate is one of the |
| | pathways shown in Figure 1. |