phase 7 cleanup design and related documents

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Provides the proposed scope of work, design criteria, site-specific conditions, and basis for design decisions in Phase 7. Also integrates criteria from 2023 Strategic Plan, Record of Decision, and Explanation of Significant Differences. View and download HERE (very large file, access may be slow).

Drawings, specifications, and maps illustrating details of the cleanup plan and work activities to be carried out in Ph. 7.  View and download HERE (very large file, access may be slow).

Full comments from Design Review Team members on the Ph. 7 draft design, including EPA, CFRTAC, and the Confederated Salish and Kootenai Tribes; and the State's responses to all comments. View and download HERE.

Results of the site investigation for Ph. 7, which included soil sampling and test pits to determine location, concentrations, depth, and extent of contamination in the site. View and download HERE (very large file, access may be slow).

Details of sampling methods and locations, quality control measures used, detailed results of soil and groundwater sampling, field log book entries, etc. View and download HERE (very large file, access may be slow).