Water quality standards may make it necessary to treat the effluent from some dredged material containment areas. The standards regulate both the amount of turbidity and the contaminant content. Since most contaminants are bound to the solid particles, removal or reduction of suspended solids will eliminate or minimize most water quality problems. Earlier small-scale studies indicated that chemical flocculation of containment area effluent was feasible for increasing the settleability of suspended solids. A full-scale test was performed at a containment area in the Vicksburg District, and a significant reduction in effluent suspended solids was realized. Results of the field demonstration are described in the following article.