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EXH AR019107: Field Assessment Mitigation Replacement Ratios Puget Sound

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This 1991 report by Sheldon and Associates, prepared for the Washington Department of Ecology, assesses wetland mitigation replacement ratios in the Puget Sound region. It evaluates compensation sites where wetlands were restored or created to offset permitted wetland losses, examining how well those sites functioned as replacements. The report provides findings, conclusions, and recommendations on compensation plan design, monitoring, and appropriate replacement ratios for regulatory guidance.

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Exhibit AR019107. Report prepared by Dyanne Sheldon and Deborah A. Dole of Sheldon and Associates for the Washington Department of Ecology, Shorelands and Coastal Zone Management Program, dated May 1, 1991. Assesses mitigation replacement ratios for wetland compensation sites in Puget Sound. Topics include compensation site functioning, critical compensation plan components, parameters of success, pre-existing site conditions, field data sheet development, and recommended replacement ratios. Filed as Appendix A in the PCHB Third Runway EIS administrative record.

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