Sediment Dredging at Superfund Megasites ... - Emsus.com

Evaluation of Dredging EffectivenessRECOMMENDATIONS:• Remedies should be designed to meet long-term riskreductiongoals (as opposed to metrics not strictly related torisk, such as mass-removal targets).• Environmental conditions that limit or favor the effectivenessof dredging should be given major consideration in decidingwhether to dredge at a site.• Resuspension, release, and residuals will occur if dredging isperformed. Decision-making should explicitly consider thoseprocesses in expectations of risk reduction.• To reduce adverse effects, best-management practices thatlimit resuspension and residual contamination should be usedduring dredging. The ability of combination remedies tolessen the adverse effect of residuals should be considered.