Confined Disposal Area Effluent and Leachate Control (Laboratory and Field Investigations).
Abstract
This report summarizes the findings of five work units concerned with the impact of dredged material disposal in confined land disposal areas. Three of the work units dealt with active disposal operations at 11 sites; impact was assessed by comparing the quality of influents and effluents at each site with background surface receiving water. Two work units are discussed which evaluated the impact of confined disposal area leachates on groundwaters. The leachate studies included laboratory column elutions (3- to 9-month period) of each of five types of dredged material overlying one of two different soils; four of the 11 field sites were also monitored for changes in leachate and groundwater quality (four onsite, four offsite monitoring, and two offsite background sampling locations at each site) in a 9-month study. The field sites included freshwater (riverrine and lake) and brackish water (estuarine and ship channel) dredging environments located in geographical areas where contamination problems were anticipated. The dredged material and environmental features varied greatly at the different sites. It is suggested that guidelines for evaluation of potential disposal sites be developed in a stepwise progression that will not require complete execution of the total program to determine site suitability. A short discussion of evaluatory scheme is included.
Document Details
- Document Type
- Technical Report
- Publication Date
- Oct 01, 1978
- Accession Number
- ADA062882
Entities
People
- Bert Eichenberger
- James L. Mang
- Kenneth Y. Chen
- Ronald E. Hoeppel
Organizations
- University of Southern California