Portland Harbor Superfund Site Mitigation and Conservation Banking

Preliminary Draft Transparency and Oversight Investigation Work



  • Linnton Mill Mitigation Bank HEA Credits (DSAY) Example Calculations and Open Questions to Regulatory Agencies

  • Logic Testing for Portland Harbor Mitigation and Conservation Bank Credits and Debits (DSAYs)

  • Side-by-Side Comparison of Two Calculations to Derive DSAYs Using Different Logic Theory

  • ALTERNATIVE A - Example Credit / Debit Transactions at Four Operational Portland Harbor Mitigation and Conservation Banks


    ALTERNATIVE B - Example Credit / Debit Transactions at Four Operational Portland Harbor Mitigation and Conservation Banks


    ALTERNATIVE C - Example Credit / Debit Transactions at Four Operational Portland Harbor Mitigation and Conservation Banks


    ALTERNATIVE D and E - Example Credit / Debit Transactions at Different HEA Amortized Time Loss Penalty Discount Rates and Mitigation Ratios


    ALTERNATIVE F - Example Credit / Debit Transactions at 100 - year HEA Amortized Time Loss Penalty of 3% Discount Rates and Mitigation Ratios


    ALTERNATIVE - Six Cases - Set G - Example Credit / Debit Transactions at 100 - year HEA Amortized Time Loss Penalty of 3% Discount Rates and Mitigation Ratios


  • Portland Harbor Mitigation Banks - Questions on Credit Debits and Performance Standards

  • Portland Harbor Community Advisory Group Letter of Concerns

  • Information Technology and Portland Harbor Superfund Site Mitigation Banking Transparency and Oversight Investigation

  • Vegetation Index (Tree, Shrub, Herb, Substrate) Calculator Tree Index (TI) Calculator