Technical Integrity / Collaboration / Exceptional Results

Lower Duwamish Waterway Investigation and Remediation

Integral is the lead consultant to the City of Seattle for the Lower Duwamish Waterway (LDW) Superfund site, a 5.5-mile-long industrial stretch of the Duwamish River in Seattle, Washington. Our work has included technical representation throughout the LDW remedial investigation and feasibility study (RI/FS) process beginning in 2001, including active participation in potentially responsible party (PRP) technical meetings, technical review of RI/FS documents, and presence at public meetings. In addition, Integral assisted the City with the priority early action cleanups, source control actions, and related cost allocation and legal tasks.

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