Contaminant loss via seepage through the porous containment structures or dikes that bound a confined dredged material disposal facility is evaluated. In this paper, crude estimates of these seepage losses are made based on field observations at the Chicago, Illinois confined disposal facility and compared to the predicted rate of evaporative losses. Water level measurements inside and outside the confined disposal facility are used to predict the seepage flows and material properties of the dike walls. With highly permeable and non-sorptive dike walls, the estimated rate of seepage transport is still less than or equal to the estimated evaporative loss rate for volatile organics compounds. Without active effluent release to the surrounding waters, however, seepage losses of contaminants may still control the water quality impacts of a confined disposal facility.
|Number of pages||7|
|State||Published - 1994|
|Event||Proceedings of the 2nd International Conference on Dredging and Dredged Material Placement. Part 2 (of 2) - Lake Buena Vista, FL, USA|
Duration: Nov 13 1994 → Nov 16 1994
|Conference||Proceedings of the 2nd International Conference on Dredging and Dredged Material Placement. Part 2 (of 2)|
|City||Lake Buena Vista, FL, USA|
|Period||11/13/94 → 11/16/94|