The Willow Run Creek Site involved the remediation of over
340,000 cubic yards of polychlorinated biphenyl impacted sediments
and soil. GHD developed a program of pre-design studies, including
pilot-scale dredging/dewatering studies, to determine the optimal
method of sediment removal and processing.
The selected remedy involved dewatering of the work area, water
treatment, and solidification of the sediments to provide the
necessary strength for placement in a site-dedicated consolidation
disposal facility (CDF). The CDF was designed to meet stringent
Toxic Substances Control Act (TSCA) and Resource Conservation and
Recovery Act (RCRA) hazardous waste disposal facility
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