Climate Change Alert!!

Willamette Valley Wetland Mitigation and Conservation Banking Data Driven Ecological Decision Making Tools

  •          1 Alder Creek Portland Harbor - Superfund (CERCLA) Credits Only

  •          2 Amazon Creek - Sold Out and / or Inactive

  •          3 Bobcat Marsh - Single User

  •          4 Butler

  •          5 Camas Swale - Inactive

  •          6 Coyote Prairie

  •          7 Dairy Creek

  •          8 East Fork Minnow Creek - Inactive

  •          9 Evergreen Creek

  •          10 Fernhill - Sold Out and / or Inactive

  •          11 Foster Creek

  •          12 Frazier Creek - Sold Out and / or Inactive

  •          13 Garret Creek

  •          14 Half-Mile

  •          15 Linnton Mill Portland Harbor - Superfund (CERCLA) / Clean Water Act / Removal-Fill Law Credits

  •          16 Long-Tom

  •          17 Marion

  •          18 Mary's River

  •          19 Mid-Valley

  •          20 Mud-Slough

  •          21 Muddy Creek

  •          22 Oak Creek

  •          23 ODOT Greenhill - Single User

  •          24 One Horse Slough - Sold Out

  •          25 Oregon Trail - Inactive

  •          26 PGE Harborton Portland Harbor - Superfund (CERCLA) Credits Only

  •          27 Rinearson Portland Harbor - Superfund (CERCLA) Credits Only

  •          28 Riverbend North - Inactive

  •          29 Santiam River ODOT Wetland Mitigation Bank - Inactive

  •          30 South Santiam River

  •          31 Tualatin Valley

  •          32 Weathers - Sold Out and Inactive

  •          33 West Eugene - Sold Out and / or Inactive

  •          34 Amazon Prairie

  •          35 Salem Stream Mitigation Bank



  • WVWMB
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    Alder Creek Portland Harbor Mitigation Bank - Superfund (CERCLA) Credits Only

  • Initial Credit Release: February 25, 2015 / Last Transaction: August 27, 2020
  • Recorded Permanent Conservation Easement in the National Conservation Easement Database: NO
  • Mitigation Bank Age Calculator

  • Recovery Actions: 1. Remove sawmill facility and private berm, 2. Create a complex of habitats within the active channel margin (channels, marsh/mudflat, riparian) on the outboard side of the SIDIC levee, 3. Create upland forested habitat, 4. Install LWD in channels, 5. Protect and enhance existing habitat

    Completed: 1. Phase I Environmental Site Assessment, 2. Phase II Environmental Site Assessment, 3. Structural Hazardous Materials Assessment, 4. Preliminary Title Report and resolution of title matters, 5. Boundary survey, 6. Property Line Adjustments, 7. Topographic survey, 8. Geotechnical Assessment, 9. Cultural Resources Survey and Report, 10. Wetland Delineation (draft), 11. Biological Assessment (draft) 12. Sediment and Erosion Control Plan In Progress, 13. Biological Resources Report (summer 2012), 14. Rare plant survey report (summer 2012), 15. Hydraulic and Hydrologic Assessment (summer 2012), 16. Wetland Functional Assessment (summer 2012)

  • Benefits to Salmonids from the Alder Creek Project: 1. Rearing habitat, 2. Foraging habitat, 3. Cover from prey, 4. Food production, 5. Shaded water (reduced temperatures), 6. Habitat complexity (LWD), and 7. Diversity of habitat

  • Credit (DSAY)Purchase Price Range: $85,000 - $125,000

  • Alder Creek Portland Harbor Mitigation Bank
  • Contact: Julie Mentzer - Wildlands Inc.
  • 520 SW 6th Avenue
  • Portland, OR 97204
  • Email: jmentzer@wildlandsinc.com
  • Phone: (503) 241-2308
  • Fax: (503) 296-2308

  • Credit Ledger Summary - ***ATTENTION*** Credit reservations and pending transactions are NOT reflected in the Available Credits total. Potential purchasers MUST contact the Sponsor to verify credit availability. No guarantee is given to the accuracy or completeness of these data. Data are updated on a periodic basis without notice.

  • Potential Credits: 734.21
  • Site Acres: 55.43
  • Acres / Credits Ratio: 0.075: 1 (Mitigation Divider)
  • Credits / Acres Ratio: 13.25: 1 (Possible Development / Pollution Site Multiplier)
  • Released Credits: 543.46
  • Withdrawn Credits: 35
  • Currently Available Credits: 508.46

  • Alder Creek Mitigation Bank Biological Opinion

  • Alder Creek Mitigation Bank Baseline Monitoring Report
  • Alder Creek Mitigation Bank 2018 Monitoring Report
  • Alder Creek Mitigation Bank 2019 Monitoring Report
  • Alder Creek Mitigation Bank 2020 Monitoring Report

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    Amazon Creek Wetland Mitigation Bank - Sold Out / Inactive

  • Approved March 12, 2002 / Last Transaction: unknown
  • Recorded Permanent Conservation Easement in the National Conservation Easement Database: YES - Partial Coverage
  • Mitigation Bank Age Calculator

  • Amazon Creek Wetland Mitigation Bank
  • Contact: David Jampolsky - Amazon Creek Mitigation Bank LLC
  • 35749 Spring Hill Road
  • Creswell, OR 97426
  • Phone: (541) 895-5910

  • Credit Ledger Summary - ***ATTENTION*** Credit reservations and pending transactions are NOT reflected in the Available Credits total. Potential purchasers MUST contact the Sponsor to verify credit availability. No guarantee is given to the accuracy or completeness of these data. Data are updated on a periodic basis without notice.

  • Potential Credits Phase I: 22.4
  • Total Site Acres Phase I: 40.00
  • Enhance Prior Converted Wetland Acres: 27.40
  • Create Wetland Acres: 11.70
  • Restore Wetland Acres: 0.90

  • Enhance Enhance Prior Converted Wetland Acres / Credits Ratio: 2:1 (Mitigation Divider)
  • Create Wetland Acres / Credits Ratio: 1.5:1 (Mitigation Divider)
  • Restore Acres / Credits Ratio: 1:1 (Mitigation Divider)

  • Potential Credits Phase II: 19.05
  • Total Site Acres Phase II: 38.10
  • Enhance Prior Converted Wetland Acres: 38.10

  • Enhance Enhance Prior Converted Wetland Acres / Credits Ratio: 2:1 (Mitigation Divider)

  • Released Credits: 41.45 - presumed
  • Withdrawn Credits: 41.45 - presumed
  • Currently Available Credits: 0 - presumed

  • Research is in progress for documenting this long and significantly complicated wetland mitigation banking credit / debit history and the current status.

  • Phase 1 Mitigation Bank Instrument
  • Phase 2 Mitigation Bank Instrument

  • Amazon Creek Phase 2 2011 Monitoring Report
  • Amazon Creek Phase 1 and 2 2009 Monitoring Report
  • Amazon Creek Phase 1 and 2 2008 Monitoring Report

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    Bobcat Marsh Wetland Mitigation Bank

  • Approved December 22, 2011 / Last Transaction: December 19, 2022
  • Recorded Permanent Conservation Easement in the National Conservation Easement Database: NO
  • Mitigation Bank Age Calculator

  • Bobcat Marsh Wetland Mitigation Bank
  • Contact: Ed Becker - City of Hillsboro
  • 2600 SW Hillsboro Hwy
  • Hillsboro, OR 97123
  • Email: edb@ci.hillsboro.or.us
  • Phone: (503) 681-6424

  • Credit Ledger Summary - ***ATTENTION*** Credit reservations and pending transactions are NOT reflected in the Available Credits total. Potential purchasers MUST contact the Sponsor to verify credit availability. No guarantee is given to the accuracy or completeness of these data. Data are updated on a periodic basis without notice.

  • Potential Credits Minus Existing Pre-Bank Approval Withdrawals: 8.23 - 2.97 = 5.26
  • Enhance Site Acres: 11.14
  • Restore Site Acres: 4.52

  • Enhance Acres / Credits Ratio: 3:1 (Mitigation Divider)
  • Restore Acres / Credits Ratio: 1:1 (Mitigation Divider)

  • Released Credits: 5.26
  • Withdrawn Credits: 4.737
  • Currently Available Credits: 0.523

  • Mitigation Bank Instrument
  • Mitigation Bank Long Term Management Plan

  • Bobcat Marsh Wetland Mitigation Bank As Built Report
  • Bobcat Marsh Wetland Mitigation Bank 2012 Monitoring Report
  • Bobcat Marsh Wetland Mitigation Bank 2013 Monitoring Report
  • Bobcat Marsh Wetland Mitigation Bank 2014 Monitoring Report
  • Bobcat Marsh Wetland Mitigation Bank 2015 Monitoring Report
  • Bobcat Marsh Wetland Mitigation Bank 2016 Monitoring Report
  • Bobcat Marsh Wetland Mitigation Bank 2017 Monitoring Report Letter

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    Butler Wetland Mitigation Bank Site

  • Initial Credit Release April 18, 2012 / Last Transaction: October 31, 2023
  • Recorded Permanent Conservation Easement in the National Conservation Easement Database: NO
  • Mitigation Bank Age Calculator

  • Butler Wetland Mitigation Bank
  • Contact: Deanna Vice - Wes and Marybel Butler Farm LLC
  • 22307 SW Munger Lane
  • Sherwood, OR 97140
  • Email: deanna@tvpfarms.com
  • Phone: (503) 628-0772

  • Credit Ledger Summary - ***ATTENTION*** Credit reservations and pending transactions are NOT reflected in the Available Credits total. Potential purchasers MUST contact the Sponsor to verify credit availability. No guarantee is given to the accuracy or completeness of these data. Data are updated on a periodic basis without notice.

  • Potential Credits: 45.60
  • Total Site Acres: 90.97
  • Enhance Site Acres: 13.68
  • Restore Site Acres: 18.98
  • Create Site Acres: 24.61
  • Buffer Site Acres: 33.70

  • Enhance Acres / Credits Ratio: 2:1 (Mitigation Divider)
  • Restore Acres / Credits Ratio: 1:1 (Mitigation Divider)
  • Create Acres / Credit Ratio: 1.5:1 (Mitigation Divider)
  • Buffer Acres / Credit Ratio: 10:1 (Mitigation Divider)

  • Released Credits: 38.076
  • Withdrawn Credits: 33.73742
  • Currently Available Credits: 4.33858

  • Final Mitigation Bank Instrument
  • Revised Final Mitigation Bank Instrumen

  • Butler Wetland Mitigation Bank 2013 Monitoring Report
  • Butler Wetland Mitigation Bank 2014 Monitoring Report
  • Butler Wetland Mitigation Bank 2015 Monitoring Report
  • Butler Wetland Mitigation Bank 2016 Monitoring Report
  • Butler Wetland Mitigation Bank 2017 Monitoring Report
  • Butler Wetland Mitigation Bank 2018 Monitoring Report
  • Butler Wetland Mitigation Bank 2019 Monitoring Report

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    Camas Swale Wetland Mitigation Bank Site - Inactive

  • Database Entry Date: June 10, 2018 / Last Transaction: Unknown
  • Recorded Permanent Conservation Easement in the National Conservation Easement Database: YES
  • Mitigation Bank Age Calculator

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    Coyote Prairie North Wetland Mitigation Bank

  • Initial Credit Release: July 7, 2011 / Last Transaction: June 29, 2023
  • Recorded Permanent Conservation Easement in the National Conservation Easement Database: NO
  • Mitigation Bank Age Calculator

  • Coyote Prairie North Wetland Mitigation Bank
  • Contact: Mr. Paul Gordon - Ecological Services Technical Specialist
  • 1820 Roosevelt Blvd
  • Eugene, OR 97402
  • Email: paul.gordon@ci.eugene.or.us
  • Phone: (541) 682-4800
  • Fax: (541) 682-6882

  • Credit Ledger Summary - ***ATTENTION*** Credit reservations and pending transactions are NOT reflected in the Available Credits total. Potential purchasers MUST contact the Sponsor to verify credit availability. No guarantee is given to the accuracy or completeness of these data. Data are updated on a periodic basis without notice.

  • Potential Credits: 78.68
  • Total Site Acres: 165
  • Enhance Unit 1 Acres: 20
  • Enhance Unit 2 Acres: 64
  • Enhance Unit 3 Acres: 81

  • Enhance Unit 1 Acres / Credits Ratio: 3.23:1 (Mitigation Divider)
  • Enhance Unit 2 Acres / Credits Ratio: 2:1 (Mitigation Divider)
  • Enhance Unit 3 Acres / Credits Ratio: 2:1 (Mitigation Divider)

  • Released Credits: 77.58
  • Withdrawn Credits: 77.58
  • Currently Available Credits: 0.00

  • Coyote Prairie North 2011 Mitigation Bank Instrument
  • Coyote Prairie North 2015 As Built Report
  • Coyote Prairie North 2015 Long Term Management Plan

  • 2009 Coyote Prairie Phase 3 Vernal Pool As-Built Report
  • Coyote Prairie North 2009 - 2011 Annual Monitoring Report
  • Coyote Prairie North 2012 Annual Monitoring Report
  • Coyote Prairie North 2013 Annual Monitoring Report
  • Coyote Prairie North 2016 Annual Monitoring Report
  • Coyote Prairie North 2017 Annual Monitoring Report
  • Coyote Prairie North 2018 Annual Monitoring Report
  • Coyote Prairie North 2019 Annual Monitoring Report

  • 7 / 35
    Dairy Creek Wetland Mitigation Bank

  • Prospectus Date: February 28, 2019 / Last Transaction: June 12, 2023
  • Recorded Permanent Conservation Easement in the National Conservation Easement Database: NO
  • Mitigation Bank Age Calculator

  • Dairy Creek Wetland Mitigation Bank
  • Contact: C. Jonas Moiel
  • Green Banks LLC
  • 14200 SE McLoughlin Blvd, Suite A
  • Milwaukie, Oregon 97267
  • Email: jonas@greenbanksllc.com
  • Phone: (503) 477-5391

  • Credit Ledger Summary - ***ATTENTION*** Credit reservations and pending transactions are NOT reflected in the Available Credits total. Potential purchasers MUST contact the Sponsor to verify credit availability. No guarantee is given to the accuracy or completeness of these data. Data are updated on a periodic basis without notice.

  • Potential Credits Group Wetlands: 87.56
  • Potential Credits Group Stream: 5.45
  • Total Site Acres: 134.1

  • Released Credits Group Wetlands: 9.108
  • Released Credits Group Stream: 0.81
  • Withdrawn Credits Group Wetlands: 0
  • Withdrawn Credits Group Stream: 0
  • Currently Available Credits Group Wetlands: 9.108
  • Currently Available Credits Group Stream: 0.81

  • Dairy Creek Wetland Mitigation Bank Prospectus

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    East Fork Minnow Creek Wetland Mitigation Bank

    9 / 35
    Evergreen Creek Wetland Mitigation Bank - Sold Out

  • Initial Credit Release February 27, 2007 / Last Transaction: May 27, 2021
  • Recorded Permanent Conservation Easement in the National Conservation Easement Database: NO
  • Mitigation Bank Age Calculator

  • Evergreen Creek Wetland Mitigation Bank
  • Contact: Marvin and Cindy Gilmour
  • 6001 NW Gilmour Lane
  • Albany, OR 97321
  • Email: c.l.gilmour@me.com
  • Phone: (541) 928-2507
  • Fax: (541) 967-2310

  • Credit Ledger Summary - ***ATTENTION*** Credit reservations and pending transactions are NOT reflected in the Available Credits total. Potential purchasers MUST contact the Sponsor to verify credit availability. No guarantee is given to the accuracy or completeness of these data. Data are updated on a periodic basis without notice.

  • Potential Credits: 84.52
  • Total Site Acres: 174.52
  • Enhance Acres: 13.40
  • Restoration Acres: 160.87

  • Enhance Acres / Credits Ratio: 3:1 (Mitigation Divider)
  • Restoration Acres / Credits Ratio: 2:1 (Mitigation Divider)

  • Released Credits: 84.52
  • Withdrawn Credits: 84.52
  • Currently Available Credits: 0

  • Mitigation Bank Instrument
  • Mitigation Bank Long Term Management Plan
  • Mitigation Bank Conservation Easement

  • Evergreen Creek Wetland Mitigation Bank 2007 Monitoring Data for Target PFO and PSS Management Units
  • Evergreen Creek Wetland Mitigation Bank 2009 Monitoring Report
  • Evergreen Creek Wetland Mitigation Bank 2010 Monitoring Report
  • Evergreen Creek Wetland Mitigation Bank 2011 Monitoring Report
  • Evergreen Creek Wetland Mitigation Bank 2012 Monitoring Report
  • Evergreen Creek Wetland Mitigation Bank 2013 Monitoring Report
  • Evergreen Creek Wetland Mitigation Bank 2014 Monitoring Report
  • Evergreen Creek Wetland Mitigation Bank 2015 Monitoring Report
  • Evergreen Creek Wetland Mitigation Bank 2016 Monitoring Report
  • Evergreen Creek Wetland Mitigation Bank 2017 Monitoring Report
  • Evergreen Creek Wetland Mitigation Bank 2018 Monitoring Report
  • Evergreen Creek Wetland Mitigation Bank 2019 Monitoring Report

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    Fernhill Wetland Mitigation Bank

  • Approved: March 17, 2005 / Last Transaction: Unknown
  • Recorded Permanent Conservation Easement in the National Conservation Easement Database: NO
  • Mitigation Bank Age Calculator

  • Fernhill Wetland Mitigation Bank
  • Contact: Diane Taniguchi-Dennis - Clean Water Services
  • 2550 SW Hillsboro Highway
  • Hillsboro, OR 97123
  • Email: unknown
  • Phone: (503) 681-3600
  • Fax: (503) 681-3603

  • Credit Ledger Summary - ***ATTENTION*** Credit reservations and pending transactions are NOT reflected in the Available Credits total. Potential purchasers MUST contact the Sponsor to verify credit availability. No guarantee is given to the accuracy or completeness of these data. Data are updated on a periodic basis without notice.

  • Potential Credits: 17.65
  • Total Site Acres: 27.49
  • Enhance Acres: 2.0
  • Creation Acres: 25.49

  • Enhance Acres / Credits Ratio: 3:1 (Mitigation Divider)
  • Creation Acres / Credits Ratio: 1.5:1 (Mitigation Divider)

  • Released Credits: unknown
  • Withdrawn Credits: unknown
  • Currently Available Credits: No longer active

  • Mitigation Bank Instrument
  • Mitigation Bank Instrument Appendixes

  • Fernhill Wetland Mitigation Bank 2007 Monitoring Report
  • Fernhill Wetland Mitigation Bank 2008 Monitoring Report
  • Fernhill Wetland Mitigation Bank 2009 Monitoring Report

  • 11 / 35
    Foster Creek Wetland Mitigation Bank

  • Initial Credit Withdrawal: September 26, 2006 / Last Transaction: June 12, 2023
  • Recorded Permanent Conservation Easement in the National Conservation Easement Database: NO
  • Mitigation Bank Age Calculator

  • Foster Creek Wetland Mitigation Bank
  • Contact: David Gorman
  • 2016 SE Henkle Road
  • Corbett, OR 97019
  • Email: dgorman@hevanet.com
  • Phone: (503) 704-6016

  • Credit Ledger Summary - ***ATTENTION*** Credit reservations and pending transactions are NOT reflected in the Available Credits total. Potential purchasers MUST contact the Sponsor to verify credit availability. No guarantee is given to the accuracy or completeness of these data. Data are updated on a periodic basis without notice.

  • Potential Credits: 28.096
  • Total Site Acres: 72.40
  • Enhance Acres: 57.10
  • Creation Acres: 13.00
  • Buffer Acres: 3.20

  • Enhance Acres / Credits Ratio: 3:1 (Mitigation Divider)
  • Creation Acres / Credits Ratio: 1.5:1 (Mitigation Divider)
  • Buffer Acres / Credits Ratio: 10:1 (Mitigation Divider)

  • Released Credits: 27.3975
  • Withdrawn Credits: 27.48
  • Currently Available Credits: -0.0825

  • Mitigation Bank Instrument
  • Mitigation Bank Instrument Amendment

  • Foster Creek Wetland Mitigation Bank 2009 Monitoring Report
  • Foster Creek Wetland Mitigation Bank 2010 Monitoring Report
  • Foster Creek Wetland Mitigation Bank 2011 Monitoring Report
  • Foster Creek Wetland Mitigation Bank 2012 Monitoring Report
  • Foster Creek Wetland Mitigation Bank 2013 Monitoring Report
  • Foster Creek Wetland Mitigation Bank 2014 Monitoring Report
  • Foster Creek Wetland Mitigation Bank 2015 Monitoring Report
  • Foster Creek Wetland Mitigation Bank 2016 Monitoring Report
  • Foster Creek Wetland Mitigation Bank 2017 Monitoring Report
  • Foster Creek Wetland Mitigation Bank 2018 Monitoring Report
  • Foster Creek Wetland Mitigation Bank 2019 Monitoring Report
  • Foster Creek Wetland Mitigation Bank 2020 Monitoring Report
  • Foster Creek Wetland Mitigation Bank 2021 Monitoring Report

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    Frazier Creek Wetland Mitigation Bank - Sold Out

  • Approved: October 2002 / Last Transaction: Unknown
  • Recorded Permanent Conservation Easement in the National Conservation Easement Database: NO
  • Mitigation Bank Age Calculator

  • Frazier Creek Wetland Mitigation Bank
  • Contact: Mr. Ken Reynolds
  • 4715 NE Highway 20
  • Corvallis, OR 97330
  • Email: unknown
  • Phone: (541) 753-7875

  • Credit Ledger Summary - ***ATTENTION*** Credit reservations and pending transactions are NOT reflected in the Available Credits total. Potential purchasers MUST contact the Sponsor to verify credit availability. No guarantee is given to the accuracy or completeness of these data. Data are updated on a periodic basis without notice.

  • Potential Credits: 13.0
  • Total Site Acres: 26.01
  • Enhance Acres: 26.01

  • Enhance Acres / Credits Ratio: 2:1 (Mitigation Divider)

  • Released Credits: unknown
  • Withdrawn Credits: unknown
  • Currently Available Credits: Presumed sold out and no longer active

  • Mitigation Bank Instrument

  • As-Built Monitoring Report
  • Frazier Creek Wetland Mitigation Bank 2009 Monitoring Report
  • Frazier Creek Wetland Mitigation Bank 2010 Monitoring Report
  • Frazier Creek Wetland Mitigation Bank 2012 Monitoring Report
  • Frazier Creek Wetland Mitigation Bank 2013 Monitoring Report
  • Frazier Creek Wetland Mitigation Bank 2014 Monitoring Report
  • Frazier Creek Wetland Mitigation Bank 2016 Monitoring Report
  • Frazier Creek Wetland Mitigation Bank 2017 Monitoring Report
  • Frazier Creek Wetland Mitigation Bank 2018 Monitoring Report
  • Frazier Creek Wetland Mitigation Bank 2019 Final Monitoring Report

  • 13/ 35
    Garret Creek Wetland Mitigation Bank

  • Initial Credit Release: November 19, 2008 / Last Transaction: September 18, 2023
  • Recorded Permanent Conservation Easement in the National Conservation Easement Database: NO
  • Mitigation Bank Age Calculator

  • Garret Creek Wetland Mitigation Bank
  • Contact: Garret Creek Wetland Mitigation Bank
  • 33711 S. Dryland Road
  • Molalla, OR 97038
  • Email: edkemnitz@aol.com
  • Phone: (503) 860-1912

  • Credit Ledger Summary - ***ATTENTION*** Credit reservations and pending transactions are NOT reflected in the Available Credits total. Potential purchasers MUST contact the Sponsor to verify credit availability. No guarantee is given to the accuracy or completeness of these data. Data are updated on a periodic basis without notice.

  • Potential Credits Wetlands: 15.485
  • Potential Credits Stream: 220
  • Total Site Acres: 29.82
  • Cropped Wetland Enhance Acres: 7.52
  • Wetland Enhance Acres: 0.77
  • Wetland Restoration Acres: 10.68
  • Upland Riparian Enhance Acres: 2.80
  • Upland / Wetland Buffer Enhance Acres: 2.51
  • Creek Restoration Linear Feet: 1,205
  • Garret Creek Tributary Cubic Yards: 220
  • Riparian Buffer Preserve Acres: 0.70
  • Upland Buffer Preserve Acres: 4.57
  • Garret and Rock Creek Preserve Acres: 0.270

  • Cropped Wetland Enhance Acres / Credits Ratio: 2:1 (Mitigation Divider)
  • Wetland Enhance Acres / Credits Ratio: 3:1 (Mitigation Divider)
  • Wetland Restoration Acres / Credits Ratio: 1:1 (Mitigation Divider)
  • Upland Riparian Enhance Acres / Credits Ratio: 6:1 (Mitigation Divider)
  • Upland / Wetland Buffer Enhance Acres / Credits Ratio: 10:1 (Mitigation Divider)
  • Riparian Buffer Acres / Credits Ratio: 10:1 (Mitigation Divider
  • Upland Buffer Preserve Acres / Credits Ratio: NA
  • Garret and Rock Creeks Protect Acres / Credits Ratio: NA
  • Garret Creek Tributary Cubic Yards / Credits Ratio: 1:1 (Mitigation Divider)

  • Released Credits Wetlands: 13.29
  • Released Credits Stream: 187.00
  • Withdrawn Credits Wetlands: 12.3605
  • Withdrawn Credits Stream: 60.00
  • Currently Available Credits Wetlands: 0.9295
  • Currently Available Credits Stream: 127.00

  • Mitigation Bank Instrument

  • Garret Creek Wetland Mitigation Bank 2009 Monitoring Report
  • Garret Creek Wetland Mitigation Bank 2010 Monitoring Report
  • Garret Creek Wetland Mitigation Bank 2011 Monitoring Report
  • Garret Creek Wetland Mitigation Bank 2012 Monitoring Report Letter
  • Garret Creek Wetland Mitigation Bank 2013 Monitoring Report
  • Garret Creek Wetland Mitigation Bank 2014 Monitoring Report
  • Garret Creek Wetland Mitigation Bank 2015 Monitoring Report
  • Garret Creek Wetland Mitigation Bank 2016Monitoring Report
  • Garret Creek Wetland Mitigation Bank 2017 Monitoring Report

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    Half-Mile Creek / Wetland Fee-In-Lieu Mitigation Bank

  • Initial Credit Release: April 21, 2010 / Last Transaction: November 30, 2022
  • Recorded Permanent Conservation Easement in the National Conservation Easement Database: NO
  • Mitigation Bank Age Calculator

  • Half-Mile Creek / Wetland Fee-In-Lieu Mitigation Bank
  • Contact: Oregon Department of State Lands - Dana Hicks
  • 775 Summer St. NE Suite 100
  • Salem, OR 97301
  • Email: dana.hicks@dsl.state.or.us
  • Phone: (503) 986-5229

  • Credit Ledger Summary - ***ATTENTION*** Credit reservations and pending transactions are NOT reflected in the Available Credits total. Potential purchasers MUST contact the Sponsor to verify credit availability. No guarantee is given to the accuracy or completeness of these data. Data are updated on a periodic basis without notice.

  • Potential Credits: 13.24
  • Total Site Acres: 60.00
  • Farmed Wetland Enhance Acres: 1.09
  • Wetland Creation Acres: 1.92
  • Wetland Restoration Acres: 9.30
  • Wetland Enhance Acres: 0.40
  • Non-agricultural Wetland Buffer Acres: 6.42
  • Agricultural Wetland Buffer Acres: 4.99

  • Farmed Wetland Enhance Acres / Credits Ratio: 2:1 (Mitigation Divider)
  • Wetland Creation Acres / Credits Ratio: 1.5:1 (Mitigation Divider)
  • Wetland Restoration Acres / Credits Ratio: 1:1 (Mitigation Divider)
  • Wetland Enhance Acres / Credits Ratio: 3:1 (Mitigation Divider)
  • Non-agricultural Wetland Buffer Acres / Credits Ratio: 10:1 (Mitigation Divider)
  • Agricultural Wetland Buffer Acres / Credits Ratio: 20:1 (Mitigation Divider)

  • Released Credits: 13.24
  • Withdrawn Credits: 8.299
  • Currently Available Credits: 4.941

  • Half Mile Lane Instrument
  • Half Mile Lane Instrument Amendment
  • Half Mile Lane Stream and Wetland Functional Assessment Scores and Values

  • Half-Mile Fee-In-Lieu Wetland Mitigation Bank 2012 Monitoring Report
  • Half-Mile Fee-In-Lieu Wetland Mitigation Bank 2013 Monitoring Report
  • Half-Mile Fee-In-Lieu Wetland Mitigation Bank 2014 Monitoring Report
  • Half-Mile Fee-In-Lieu Wetland Mitigation Bank 2015 Monitoring Report

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    Linnton Mill Portland Harbor Mitigation Bank - Superfund (CERCLA) / Federal Clean Water Act (CWA) / State Removal-Fill Law (RFL) Credits

  • Initial Credit Release: May 1, 2019 / Last Transaction: August 1, 2022
  • Recorded Permanent Conservation Easement in the National Conservation Easement Database: NO
  • Mitigation Bank Age Calculator

  • Goal: Provide high quality habitat for salmon, lamprey, mink, bald eagle, osprey, and other native fish and wildlife living in this otherwise heavily developed stretch of the Willamette River
  • Recovery Actions: 1. Removal of multiple buildings, 2 docks, and 700 pilings, 2. Restoring access for salmon, lamprey, and other fish to a section of Linnton Creek (currently confined to a pipe), 3. Planting thousands of native plants across the site, 3. Removing invasive vegetation and laying back the banks along the Willamette River to improve riparian and shallow water habitat for fish and wildlife, 4. Placing logs in the creek for small fish to hide, rock piles in the uplands for mink to den, and snags for bald eagles and other birds to perch and hunt

  • Linnton Mill Portland Harbor Mitigation Bank
  • Contact: Andy Gregg - RestorCap
  • 337 17th Street, Suite 200
  • Oakland, CA 94612
  • Phone: (510) 326-7131

  • Credit Ledger Summary - ***ATTENTION*** Credit reservations and pending transactions are NOT reflected in the Available Credits total. Potential purchasers MUST contact the Sponsor to verify credit availability. No guarantee is given to the accuracy or completeness of these data. Data are updated on a periodic basis without notice.

  • Potential Credits Overall: 502.51
  • Potential Credits / NRDA-CWA Dual Purpose Palustrine: 137.5
  • Potential Credits / NRDA-CWA Dual Purpose Riverine: 216.1
  • Potential Credits / NRDA-Superfund: 148.91
  • Site Acres: 27.83

  • Acres / Credits Ratio: 0.055:1 (Mitigation Divider)
  • Credits / Acres Ratio: 18.05:1 (Possible Development / Pollution Site Multiplier)

  • Released Credits Overall: 252.50
  • Released Credits / NRDA-CWA Dual Purpose Palustrine: 27.5
  • Released Credits / NRDA-CWA Dual Purpose Riverine: 43.22
  • Released Credits / NRDA-Superfund: 181.78
  • Withdrawn Credits Overall: 102.60
  • Withdrawn Credits / NRDA-CWA Dual Purpose Palustrine: 0
  • Withdrawn Credits / NRDA-CWA Dual Purpose Riverine: 2.01
  • Withdrawn Credits / Stream: 2.01 - Note: It is unclear if this is from the same credit category as above (NRDA-CWA Dual Purpose Riverine) or from an additional 'stream' credit category. Therefore it is not included in these calculations pending further clarification from the Trustee Council.
  • Withdrawn Credits / NRDA-Superfund: 100.59
  • Currently Available Credits Overall: 149.9
  • Currently Available Credits / NRDA-CWA Dual Purpose Palustrine: 27.5
  • Currently Available Credits / NRDA-CWA Dual Purpose Riverine: 41.21
  • Currently Available Credits / NRDA-Superfund: 81.19
  • Currently Available Credits / Stream: 0

  • Linnton Mill Mitigation Bank Prospectus
  • Linnton Mill Mitigation Bank HEA Credits (DSAY) Example Calculations and Open Questions to Regulatory Agencies
  • Linnton Mill Mitigation Bank Instrument
  • Linnton Mill Mitigation Bank Recorded Deed Restriction
  • Linnton Mill Mitigation Bank Biological Opinion

  • Linnton Mill Final Habitat Development Plan
  • Linnton Mill Mitigation Bank As-Built Monitoring Report
  • Linnton Mill Mitigation Bank 2020 Monitoring Report
  • Linnton Mill Mitigation Bank 2020 Monitoring Report Feedback Results
  • Linnton Mill Mitigation Bank Revised 2020 Monitoring Report
  • Linnton Mill Mitigation Bank Revised 2021 Monitoring Report
  • Linnton Mill Mitigation Bank 2020 Digital Forest Vegetation Data for Performance Monitoring
  • Linnton Mill Mitigation Bank 2020 Digital Scrub-shrub Vegetation Data for Performance Monitoring

  • 16/ 35
    Long-Tom Wetland Mitigation Bank

  • Approved July 8, 2008 / Last Transaction: November 21, 2023
  • Recorded Permanent Conservation Easement in the National Conservation Easement Database: NO
  • Mitigation Bank Age Calculator

  • Long-Tom Wetland Mitigation Bank
  • Contact: Timothy Acker - EcoBank LLC
  • 38863 Scravel Hill Road, NE
  • Albany, OR 97322-9554
  • Email: atwetlands@comcast.net
  • Phone: (541) 327-3427

  • Credit Ledger Summary - ***ATTENTION*** Credit reservations and pending transactions are NOT reflected in the Available Credits total. Potential purchasers MUST contact the Sponsor to verify credit availability. No guarantee is given to the accuracy or completeness of these data. Data are updated on a periodic basis without notice.

  • Potential Credits: 61.14
  • Total Site Acres: 135.52
  • Enhance Acres: 77.75
  • Creation Acres: 23.39
  • Restoration Acres: 3.41
  • Preservation Acres: 0.00
  • Buffer Acres: 21.08

  • Wetland Enhance Acres / Credits Ratio: 2:1 (Mitigation Divider)
  • Wetland Creation Acres / Credits Ratio: 1.5:1 (Mitigation Divider)
  • Wetland Restoration Acres / Credits Ratio: 1:1 (Mitigation Divider)
  • Wetland Preservation Acres / Credits Ratio: 10:1 (Mitigation Divider)
  • Wetland Buffer Acres / Credits Ratio: 10:1 (Mitigation Divider)

  • Released Credits: 61.14
  • Withdrawn Credits: 61.024
  • Currently Available Credits: 0.116

  • Mitigation Bank Instrument

  • Long Tom Wetland Mitigation Bank 2009 Monitoring Report
  • Long Tom Wetland Mitigation Bank 2010 Monitoring Report
  • Long Tom Wetland Mitigation Bank 2011 Monitoring Report
  • Long Tom Wetland Mitigation Bank 2012 Monitoring Report
  • Long Tom Wetland Mitigation Bank 2013 Monitoring Report
  • Long Tom Wetland Mitigation Bank 2014 Monitoring Report
  • Long Tom Wetland Mitigation Bank 2015 Monitoring Report
  • Long Tom Wetland Mitigation Bank 2016 Monitoring Report
  • Long Tom Wetland Mitigation Bank 2017 Monitoring Report
  • Long Tom Wetland Mitigation Bank 2018 Monitoring Report
  • Long Tom Wetland Mitigation Bank 2019 Monitoring Report
  • Long Tom Wetland Mitigation Bank 2020 Monitoring Report

  • 17/ 35
    Marion Wetland Mitigation Bank

  • Approved April 1, 2003 / Last Transaction: October 24, 2023
  • Recorded Permanent Conservation Easement in the National Conservation Easement Database: NO
  • Mitigation Bank Age Calculator

  • Marion Wetland Mitigation Bank
  • Contact: C. Jonas Moiel - Senior Ecologist - Green Banks, LLC
  • 14200 SE McLoughlin Blvd, Suite A
  • Milwaukee, OR 97267
  • Email: jonas@greenbanksllc.com
  • Phone: (503) 477-5391

  • Credit Ledger Summary - ***ATTENTION*** Credit reservations and pending transactions are NOT reflected in the Available Credits total. Potential purchasers MUST contact the Sponsor to verify credit availability. No guarantee is given to the accuracy or completeness of these data. Data are updated on a periodic basis without notice.

  • Potential Credits: 34.092
  • Total Site Acres: 57.82
  • Phase I Enhance Acres: 5.65
  • Phase I Creation Acres: 3.30
  • Phase I Restoration Acres: 6.16
  • Phase I Preservation Acres: 0.00
  • Phase I Buffer Acres: 0.50

  • Phase II Enhance Acres: 1.82
  • Phase II Creation Acres: 15.16
  • Phase II Restoration Acres: 0.00
  • Phase II Preservation Acres: 0.00
  • Phase II Buffer Acres: 2.50

  • Phase III Enhance Acres: 2.03
  • Phase III Creation Acres: 4.61
  • Phase III Restoration Acres: 10.34
  • Phase III Preservation Acres: 0.00
  • Phase III Buffer Acres: 0.50

  • Phase I Wetland Enhance Acres / Credits Ratio: 2:1 (Mitigation Divider)
  • Phase I Wetland Creation Acres / Credits Ratio: 1.5:1 (Mitigation Divider)
  • Phase I Wetland Restoration Acres / Credits Ratio: 1:1 (Mitigation Divider)
  • Phase I Wetland Preservation Acres / Credits Ratio: 10:1 (Mitigation Divider)
  • Phase I Wetland Buffer Acres / Credits Ratio: 10:1 (Mitigation Divider)

  • Phase II Wetland Enhance Acres / Credits Ratio: 3:1 (Mitigation Divider)
  • Phase II Wetland Creation Acres / Credits Ratio: 1.5:1 (Mitigation Divider)
  • Phase II Wetland Restoration Acres / Credits Ratio: 1:1 (Mitigation Divider)
  • Phase II Wetland Preservation Acres / Credits Ratio: 10:1 (Mitigation Divider)
  • Phase II Wetland Buffer Acres / Credits Ratio: 10:1 (Mitigation Divider)

  • Phase III Wetland Enhance Acres / Credits Ratio: 2:1 (Mitigation Divider)
  • Phase III Wetland Creation Acres / Credits Ratio: 1.5:1 (Mitigation Divider)
  • Phase III Wetland Restoration Acres / Credits Ratio: 1:1 (Mitigation Divider)
  • Phase III Wetland Preservation Acres / Credits Ratio: 10:1 (Mitigation Divider)
  • Phase III Wetland Buffer Acres / Credits Ratio: 10:1 (Mitigation Divider)

  • Released Credits: 34.092
  • Withdrawn Credits: 32.507
  • Currently Available Credits: 1.585

  • Mitigation Bank Instrument

  • Marion Wetland Mitigation Bank 2009 Monitoring Report
  • Marion Wetland Mitigation Bank 2010 Monitoring Report
  • Marion Wetland Mitigation Bank 2011 Monitoring Report
  • Marion Wetland Mitigation Bank 2012 Monitoring Report
  • Marion Wetland Mitigation Bank 2013 Monitoring Report
  • Marion Wetland Mitigation Bank 2014 Monitoring Report
  • Marion Wetland Mitigation Bank 2015 Monitoring Report
  • Marion Wetland Mitigation Bank 2016 Monitoring Report
  • Marion Wetland Mitigation Bank 2017 Monitoring Report
  • Marion Wetland Mitigation Bank 2018 Monitoring Report
  • Marion Wetland Mitigation Bank 2019 Monitoring Report

  • 18/ 35
    Mary's River Wetland Mitigation Bank

  • Approved May 15, 2020/ Last Transaction: October 11, 2023
  • Recorded Permanent Conservation Easement in the National Conservation Easement Database: NO
  • Mitigation Bank Age Calculator

  • Mary's River Wetland Mitigation Bank
  • Contact: Ray Fiori - Oregon Wetlands LLC
  • 6001 NW Gilmour Lane
  • Albany, OR 97321
  • rayf@oregon-wetlands.com
  • Phone: (541) 760-1777

  • Credit Ledger Summary - ***ATTENTION*** Credit reservations and pending transactions are NOT reflected in the Available Credits total. Potential purchasers MUST contact the Sponsor to verify credit availability. No guarantee is given to the accuracy or completeness of these data. Data are updated on a periodic basis without notice.

  • Potential Credits: 71.408
  • Total Site Acres: 126.64
  • Enhance Acres Flat Depressional: 45.70
  • Restoration Acres Flat Depressional: 14.18
  • Creation Acres Flat Depressional: 47.98
  • Buffer (Sloughs) Depressional: 1.67
  • Buffer (upland prairie) Upland: 6.60
  • Buffer (riparian forest) Upland: 6.98

  • Enhance Acres / Credits Ratio: 2:1 (Mitigation Divider)
  • Create Acres / Credits Ratio: 1.5:1 (Mitigation Divider)
  • Buffer (Sloughs) Acres / Credits Ratio: 5:1 (Mitigation Divider)
  • Buffer (upland prairie) Acres / Credits Ratio: 10:1 (Mitigation Divider)
  • Buffer (riparian forest) Acres / Credits Ratio: 5:1 (Mitigation Divider)

  • Released Credits: 49.987
  • Withdrawn Credits: 22.392
  • Currently Available Credits: 27.595

  • Mitigation Bank Instrument

  • 19/ 35
    Mid-Valley Wetland Mitigation Bank

  • Approved September 29, 2005/ Last Transaction: May 7, 2015
  • Recorded Permanent Conservation Easement in the National Conservation Easement Database: NO
  • Mitigation Bank Age Calculator

  • Mid-Valley Wetland Mitigation Bank
  • Contact: Marvin and Cindy Gilmour Bank Sponsors / Owners
  • 6001 NW Gilmour Lane
  • Albany, OR 97321
  • Email: c.l.gilmour@me.com
  • Phone: (541) 928-2507
  • Fax: (541) 967-2310

  • Credit Ledger Summary - ***ATTENTION*** Credit reservations and pending transactions are NOT reflected in the Available Credits total. Potential purchasers MUST contact the Sponsor to verify credit availability. No guarantee is given to the accuracy or completeness of these data. Data are updated on a periodic basis without notice.

  • Potential Credits: 21.527
  • Total Site Acres Phase I: 31.44
  • Total Site Acres Phase II: 12.22
  • Enhance Acres Phase I: 10.17
  • Restoration Acres Phase I: 10.58
  • Restoration Prior Converted Wetland Acres Phase I: 1.02
  • Creation Acres Phase I: 4.78
  • Buffer Acres Phase I: 4.89
  • Enhance Prior Converted Wetland Acres Phase II: 7.61
  • Buffer Management Acres Phase II: 4.61

  • Phase I Enhance Acres / Credits Ratio: 5:1 (Mitigation Divider)
  • Phase I Restore Acres / Credits Ratio: 1:1 (Mitigation Divider)
  • Phase I Restore Prior Converted Acres / Credits Ratio: 2:1 (Mitigation Divider)
  • Phase I Create Acres / Credits Ratio: 1.5:1 (Mitigation Divider)
  • Phase I Buffer Acres / Credits Ratio: 10:1 (Mitigation Divider)

  • Phase II Enhance Prior Converted Wetland Acres / Credits Ratio: 2:1 (Mitigation Divider)
  • Phase II Buffer Acres / Credits Ratio: 5:1 (Mitigation Divider)

  • Released Credits: 21.07
  • Withdrawn Credits: 21.0635
  • Currently Available Credits: 0.0065

  • Mitigation Bank Instrument

  • Mid-Valley Wetland Mitigation Bank 2006 Phase 2 As-Built Monitoring Report
  • Mid-Valley Wetland Mitigation Bank 2007 Phase 1 Monitoring Report
  • Mid-Valley Wetland Mitigation Bank 2009 Phase 1 Monitoring Report
  • Mid-Valley Wetland Mitigation Bank 2009 Phase 2 Monitoring Report
  • Mid-Valley Wetland Mitigation Bank 2010 Phase 1 Monitoring Report
  • Mid-Valley Wetland Mitigation Bank 2010 Phase 1 Monitoring Report Additions
  • Mid-Valley Wetland Mitigation Bank 2011 Phase 1 Monitoring Report
  • Mid-Valley Wetland Mitigation Bank 2011 Phase 2 Monitoring Report
  • Mid-Valley Wetland Mitigation Bank 2012 Phase 1 Monitoring Report
  • Mid-Valley Wetland Mitigation Bank 2012 Phase 2 Monitoring Report
  • Mid-Valley Wetland Mitigation Bank 2013 Phase 1 Monitoring Report
  • Mid-Valley Wetland Mitigation Bank 2013 Phase 2 Monitoring Report
  • Mid-Valley Wetland Mitigation Bank 2014 Phase 1 Monitoring Report
  • Mid-Valley Wetland Mitigation Bank 2014 Phase 2 Monitoring Report
  • Mid-Valley Wetland Mitigation Bank 2015 Phase 1 Monitoring Report
  • Mid-Valley Wetland Mitigation Bank 2015 Phase 2 Monitoring Report
  • Mid-Valley Wetland Mitigation Bank 2017 Phase 2 Monitoring Report
  • Mid-Valley Wetland Mitigation Bank 2018 Phase 2 Monitoring Report
  • Mid-Valley Wetland Mitigation Bank 2019 Phase 2 Monitoring Report

  • 20/ 35
    Mud-Slough Wetland Mitigation Bank

  • Approved October 20, 2000/ Last Transaction: October 2, 2023
  • Recorded Permanent Conservation Easement in the National Conservation Easement Database: YES - Full Coverage
  • Mitigation Bank Age Calculator

  • Mud-Slough Wetland Mitigation Bank
  • Contact: Mark Knaupp Bank Sponsor / Owner
  • 1875 N. Greenwood Road
  • Rickreall, OR 97371
  • Email: wetlandbank@msn.com
  • Phone: (503) 559-0223

  • Credit Ledger Summary - ***ATTENTION*** Credit reservations and pending transactions are NOT reflected in the Available Credits total. Potential purchasers MUST contact the Sponsor to verify credit availability. No guarantee is given to the accuracy or completeness of these data. Data are updated on a periodic basis without notice.

  • Potential Credits: 159.125
  • Total Site Acres Phase 1: 56.25
  • Total Site Acres Phase 3: 81.50
  • Total Site Acres Phase 4: 47.20
  • Total Site Acres: 184.95
  • Restoration / Enhancement Prior Converted Acres Phase 1: 56.25
  • Enhance Prior Converted Wetland Acres Phase 3: 80
  • Restoration Wetland Acres Phase 3: 1.50
  • Restoration Wetland Acres Phase 4: 40.10
  • Enhance Wetland Acres Phase 4: 1.24
  • Creation Wetland Acres Phase 4: 1.77
  • Enhance Upland Acres Phase 4: 4.09

  • Phase 1 Restore/Enhance Prior Converted Acres / Credits Ratio: 2:1 (Mitigation Divider)

  • Phase 3 Enhance Prior Converted Wetland Acres / Credits Ratio: 2:1 (Mitigation Divider)
  • Phase 3 Restore Wetland Acres / Credits Ratio: 1:1 (Mitigation Divider)

  • Phase 4 Restore Wetland Acres / Credits Ratio: 1:1 (Mitigation Divider)
  • Phase 4 Enhance Prior Converted Wetland Acres / Credits Ratio: 2:1 (Mitigation Divider)
  • Phase 4 Create Wetland Acres / Credits Ratio: 1.5:1 (Mitigation Divider)
  • Phase 4 Enhance Upland Acres / Credits Ratio: 6:1 (Mitigation Divider)

  • Released Credits: 159.125
  • Withdrawn Credits: 154.155
  • Currently Available Credits: 4.97

  • Mitigation Bank Instrument - Phase 1
  • Mitigation Bank Instrument - Phase 3
  • Mitigation Bank Instrument - Phase 4

  • Mud Slough Wetland Mitigation Bank 2009 Phase 1 and 2 Monitoring Report
  • Mud Slough Wetland Mitigation Bank 2009 Phase 3 Monitoring Report
  • Mud Slough Wetland Mitigation Bank 2010 Phase 3 Monitoring Report
  • Mud Slough Wetland Mitigation Bank 2011 Phase 3 and 4 Monitoring Report
  • Mud Slough Wetland Mitigation Bank 2012 Phase 3 and 4 Monitoring Report
  • Mud Slough Wetland Mitigation Bank 2013 Phase 2 Monitoring Report
  • Mud Slough Wetland Mitigation Bank 2013 Phase 3 and 4 Monitoring Report
  • Mud Slough Wetland Mitigation Bank 2014 Phase 4 Monitoring Report
  • Mud Slough Wetland Mitigation Bank 2015 Phase 4 Monitoring Report
  • Mud Slough Wetland Mitigation Bank 2016 Phase 3 and 4 Monitoring Report
  • Mud Slough Wetland Mitigation Bank 20017 Phase 3 and 4 Monitoring Report
  • Mud Slough Wetland Mitigation Bank 2018 Phase 4 Monitoring Report
  • Mud Slough Wetland Mitigation Bank 2019 Phase 4 Monitoring Report

  • 21/ 35
    Muddy Creek Wetland Mitigation Bank

  • Approved July 11, 2007/ Last Transaction: September 1, 2021
  • Recorded Permanent Conservation Easement in the National Conservation Easement Database: NO
  • Mitigation Bank Age Calculator

  • Muddy Creek Wetland Mitigation Bank
  • Contact: Chris Kiilsgaard
  • 3558 NW Polk Street
  • Corvallis, OR 97330
  • Email: cwkiilsgaard@gmail.com
  • Phone: (541) 754-4150

  • Credit Ledger Summary - ***ATTENTION*** Credit reservations and pending transactions are NOT reflected in the Available Credits total. Potential purchasers MUST contact the Sponsor to verify credit availability. No guarantee is given to the accuracy or completeness of these data. Data are updated on a periodic basis without notice.

  • Potential Credits: 59.08
  • Total Site Acres Phase 1: 53.80
  • Total Site Acres Phase 2: 54.20
  • Total Site Acres: 108.00
  • Enhancement Prior Converted Acres Phase 1: 41.80
  • Enhancement Existing Forest Wetlands Acres Phase 1: 3.00
  • Creation Wetland Acres Phase 1: 9.00
  • Enhance Wetland Acres Phase 2: 22.20
  • Creation Wetland Acres Phase 2: 32.00

  • Phase 1 Enhance Prior Converted Acres / Credits Ratio: 2:1 (Mitigation Divider)
  • Phase 1 Creation Wetland Acres / Credits Ratio: 1.5:1 (Mitigation Divider)

  • Phase 2 Enhance Prior Converted Wetland Acres / Credits Ratio: 2:1 (Mitigation Divider)
  • Phase 2 Create Wetland Acres / Credits Ratio: 1.5:1 (Mitigation Divider)

  • Released Credits: 53.16
  • Withdrawn Credits: 52.885
  • Currently Available Credits: 0.275

  • Mitigation Bank Instrument

  • 2008 Monitoring Data Generated Predicted Weed Surface

  • Muddy Creek Wetland Mitigation Bank 2008 Monitoring Report
  • Muddy Creek Wetland Mitigation Bank 2009 Monitoring Report
  • Muddy Creek Wetland Mitigation Bank 2010 Monitoring Report
  • Muddy Creek Wetland Mitigation Bank 2011 Monitoring Report
  • Muddy Creek Wetland Mitigation Bank 2012 Phase 1 and 2 As-Built Report
  • Muddy Creek Wetland Mitigation Bank 2012 Monitoring Report
  • Muddy Creek Wetland Mitigation Bank 2013 Monitoring Report
  • Muddy Creek Wetland Mitigation Bank 2014 Monitoring Report
  • Muddy Creek Wetland Mitigation Bank 2015 Monitoring Report
  • Muddy Creek Wetland Mitigation Bank 2015 Phase 2 As-Built Report
  • Muddy Creek Wetland Mitigation Bank 2016 Monitoring Report
  • Muddy Creek Wetland Mitigation Bank 2017 Monitoring Report
  • Muddy Creek Wetland Mitigation Bank 2018 Monitoring Report
  • Muddy Creek Wetland Mitigation Bank 2019 Monitoring Report

  • 22/ 35
    Oak Creek Wetland Mitigation Bank

  • Approved August 4, 1999/ Last Transaction: November 13, 2013
  • Recorded Permanent Conservation Easement in the National Conservation Easement Database: NO
  • Mitigation Bank Age Calculator

  • Oak Creek Wetland Mitigation Bank
  • Contact: Richard Novitzki
  • 4853 NW Bruno Place
  • Corvallis, OR 97330
  • Email: r.p.novitzki@gmail.com
  • Phone: (541) 758-0057
  • Fax: (541) 758-0275

  • Credit Ledger Summary - ***ATTENTION*** Credit reservations and pending transactions are NOT reflected in the Available Credits total. Potential purchasers MUST contact the Sponsor to verify credit availability. No guarantee is given to the accuracy or completeness of these data. Data are updated on a periodic basis without notice.

  • Potential Credits: 38.98
  • Total Site Acres Phase I: 61.65
  • Total Site Acres Phase II: 6.18
  • Total Site Acres: 88.20
  • Enhancement Prior Converted Cropland Acres Phase I: 52.74
  • Restored Wetland Acres Phase I: 2.75
  • Buffer and Restored Upland Acres Phase I: 6.16
  • Enhance Forested Wetland Acres Phase II: 6.18

  • Phase I Enhance Prior Converted Cropland Acres / Credits Ratio: 2:1 (Mitigation Divider)
  • Phase I Restored Wetland Acres / Credits Ratio: 1:1 (Mitigation Divider)
  • Phase I Restored Wetland Buffer Acres / Credits Ratio: 10:1 (Mitigation Divider)

  • Phase II Enhance Forested Wetland Acres / Credits Ratio: 3:1 (Mitigation Divider)

  • Released Credits: 22.59
  • Withdrawn Credits: 22.585
  • Currently Available Credits: 0.005

  • Mitigation Bank Instrument

  • Oak Creek Wetland Mitigation Bank 2009 Monitoring Report
  • Oak Creek Wetland Mitigation Bank 2010 Monitoring Report
  • Oak Creek Wetland Mitigation Bank 2011 Monitoring Report
  • Oak Creek Wetland Mitigation Bank 2012 Monitoring Report
  • Oak Creek Wetland Mitigation Bank 2013 Monitoring Report
  • Oak Creek Wetland Mitigation Bank 2014 Monitoring Report
  • Oak Creek Wetland Mitigation Bank 2015 Monitoring Report
  • Oak Creek Wetland Mitigation Bank 2016 Monitoring Report
  • 23/ 35
    ODOT Greenhill Wetland Mitigation Bank

  • Approved April 13, 2015/ Last Transaction: April 30, 2021
  • Recorded Permanent Conservation Easement in the National Conservation Easement Database: NO
  • Mitigation Bank Age Calculator

  • ODOT Greenhill Wetland Mitigation Bank
  • Contact: Brad Livingston - ODOT HQ Wetlands Program Coordinator
  • 4040 Fairview Industrial Drive SE, MS #6
  • Salem, OR 97302
  • Email: bradley.f.livingston@odot.state.or.us
  • Phone: (503) 986-3062

  • Credit Ledger Summary - ***ATTENTION*** Credit reservations and pending transactions are NOT reflected in the Available Credits total. Potential purchasers MUST contact the Sponsor to verify credit availability. No guarantee is given to the accuracy or completeness of these data. Data are updated on a periodic basis without notice.

  • Potential Credits: 8.11
  • Total Site Acres: 61.65
  • Total Site Acres Compensatory Mitigation: 57.55
  • PEM Slope/Flats Acres Enhancement: 57.35
  • PEM Slope/Flats Acres Restored: 0.20

  • PEM Slope/Flats Acres Enhancement Acres / Credits Ratio: 7.25:1 (Mitigation Divider)
  • PEM Slope/Flats Acres Restored Acres / Credits Ratio: 1:1 (Mitigation Divider)

  • Released Credits: 4.87
  • Withdrawn Credits: 1.14
  • Currently Available Credits: 3.73

  • ODOT 2015 Greenhill Mitigation Bank Instrument
  • ODOT 2015 Greenhill Mitigation Bank Deed Restriction

  • ODOT 2017 Greenhill Mitigation Bank Annual Monitoring Report
  • ODOT 2018 Greenhill Mitigation Bank Annual Monitoring Report
  • ODOT 2019 Greenhill Mitigation Bank Annual Monitoring Report

  • 24/ 35
    One Horse Slough Wetland Mitigation Bank - Sold Out

  • Approved December 12, 2006/ Last Transaction: April 18, 2022
  • Recorded Permanent Conservation Easement in the National Conservation Easement Database: NO
  • Mitigation Bank Age Calculator

  • One Horse Slough Wetland Mitigation Bank
  • Contact: Ray Fiori - Oregon Wetlands LLC
  • 6001 NW Gilmour Ln.
  • Albany, OR 97321
  • Email: rayf@oregon-wetlands.com
  • Phone: (541) 760-1777

  • Credit Ledger Summary - ***ATTENTION*** Credit reservations and pending transactions are NOT reflected in the Available Credits total. Potential purchasers MUST contact the Sponsor to verify credit availability. No guarantee is given to the accuracy or completeness of these data. Data are updated on a periodic basis without notice.

  • Potential Credits: 66.905
  • Total Site Acres: 130.48
  • Acres Enhancement: 118.67
  • Acres Created: 11.81

  • Enhancement Acres / Credits Ratio: 2:1 (Mitigation Divider)
  • Created Acres / Credits Ratio: 1.5:1 (Mitigation Divider)

  • Released Credits: 68.16
  • Withdrawn Credits: 68.16
  • Currently Available Credits: 0

  • One Horse Mitigation Bank Instrument
  • One Horse Mitigation Bank Final Long Term Management Plan
  • One Horse Mitigation Bank Recorded Conservation Easement

  • One Horse Slough Wetland Mitigation Bank 2009 Monitoring Report
  • One Horse Slough Wetland Mitigation Bank 2010 Monitoring Report
  • One Horse Slough Wetland Mitigation Bank 2011 Monitoring Report
  • One Horse Slough Wetland Mitigation Bank 2012 Monitoring Report
  • One Horse Slough Wetland Mitigation Bank 2013 Monitoring Report
  • One Horse Slough Wetland Mitigation Bank 2014 Monitoring Report
  • One Horse Slough Wetland Mitigation Bank 2015 Monitoring Report
  • One Horse Slough Wetland Mitigation Bank 2016 Monitoring Report
  • One Horse Slough Wetland Mitigation Bank 2017 Monitoring Report
  • One Horse Slough Wetland Mitigation Bank 2018 Monitoring Report

  • 25/ 35
    Oregon Trail Heritage Wetland Mitigation Bank - Inactive

  • Approved: July 2010 / Last Transaction: Unknown
  • Recorded Permanent Conservation Easement in the National Conservation Easement Database: NO
  • Mitigation Bank Age Calculator

  • Oregon Trail Heritage Wetland Mitigation Bank
  • Contact: Barbara Coon
  • 26681 High Pass Road
  • Junction City, OR 97448
  • Email: unknown
  • Phone: (541) 914-2241

  • Credit Ledger Summary - ***ATTENTION*** Credit reservations and pending transactions are NOT reflected in the Available Credits total. Potential purchasers MUST contact the Sponsor to verify credit availability. No guarantee is given to the accuracy or completeness of these data. Data are updated on a periodic basis without notice.

  • Potential Credits: 39.28
  • Total Site Acres: 107.40
  • Enhance Prior Converted Wetland Acres: 70.20
  • Create Wetland Acres: 0.90
  • Enhance Wetland Buffer Acres: 14.30

  • Enhance Prior Converted Wetland Acres / Credits Ratio: 2:1 (Mitigation Divider)
  • Create Wetland Acres / Credits Ratio: 1.5:1 (Mitigation Divider)
  • Enhance Wetland Buffer Acres / Credits Ratio: 4:1 (Mitigation Divider)

  • Released Credits: unknown
  • Withdrawn Credits: unknown
  • Currently Available Credits: No longer active

  • Mitigation Bank Instrument

  • 26/ 35
    PGE Harborton Portland Harbor Mitigation Bank - Superfund (CERCLA) Credits Only

  • Approved September 8, 2021/ Last Transaction: April 5, 2023
  • Recorded Permanent Conservation Easement in the National Conservation Easement Database: NO
  • Mitigation Bank Age Calculator

  • PGE Harborton Portland Harbor Mitigation Bank
  • Contact: Chris Bozzini - Sales Senior Manager Environmental Services
  • 121 SW Salmon St
  • Portland, OR 97204
  • Email: Chris.bozzini@pgn.com
  • Phone: (503) 464-7853
  • Cell Phone: (704) 819-6827

  • Credit Ledger Summary - ***ATTENTION*** Credit reservations and pending transactions are NOT reflected in the Available Credits total. Potential purchasers MUST contact the Sponsor to verify credit availability. No guarantee is given to the accuracy or completeness of these data. Data are updated on a periodic basis without notice.

  • Potential Credits: 586.5
  • Total Site Acres: 54.00

  • Acres / Credits Ratio: 0.092: 1 (Mitigation Divider)
  • Credits / Acres Ratio: 10.881: 1 (Possible Development / Pollution Site Multiplier)
  • Released Credits: 293.25
  • Withdrawn Credits: 54.75
  • Currently Available Credits: 238.50

  • PGE Harborton Mitigation Bank Biological Opinion
  • PGE Harborton Final 2021 Habitat Development Plan

  • PGE Harborton Final Revised 2021 Monitoring Report

  • 27/ 35
    Rinearson Creek Portland Harbor Mitigation Bank - Superfund (CERCLA) Credits Only

  • Sponsor Appoved: June 30, 2021 / Last Transaction: June 25, 2019
  • Recorded Permanent Conservation Easement in the National Conservation Easement Database: NO
  • Mitigation Bank Age Calculator

  • Recovery Actions: 1. Removing an earthen dam that blocked salmon, lamprey, and other fish from swimming up Rinearson Creek, 2. Reducing the size of the pond to cool water temperatures while maintaining habitat for western pond turtles, 3. Planting thousands of native plants and removing invasive vegetation throughout the project area, 4. Placing large wood in the stream for small fish to hide, rock piles in the uplands for mink to den, and snags for bald eagles and other birds to perch and hunt, 5. Protecting the site from human disturbance by only allowing recreational access on defined trails

  • Contact: Evan B. Ocheltree - Columbia Restoration Group / Falling Springs
  • 1100 Boulders Parkway, Suite 101
  • Richmond, VA 23225
  • Email: sales@fallingspringsllc.com
  • Phone: (804) 330-8090
  • Cell Phone: (843) 860-5417

  • Credit Ledger Summary - ***ATTENTION*** Credit reservations and pending transactions are NOT reflected in the Available Credits total. Potential purchasers MUST contact the Sponsor to verify credit availability. No guarantee is given to the accuracy or completeness of these data. Data are updated on a periodic basis without notice.

  • Potential Credits: 320.7
  • Site Acres: 34.156

  • Acres / Credits Ratio: 0.103: 1 (Mitigation Divider)
  • Credits / Acres Ratio: 9.672: 1 (Possible Development / Pollution Site Multiplier)

  • Released Credits: 160.35
  • Withdrawn Credits: 100
  • Currently Available Credits: 60.35

  • Rinearson Creek Natural Area Habitat Development Plan
  • Rinearson Creek Mitigation Bank Baseline Monitoring Report

  • Rinearson Creek Mitigation Bank 2019 Monitoring Report
  • Rinearson Creek Mitigation Bank 2019-2020 Monitoring Report
  • Rinearson Creek Mitigation Bank 2020 Monitoring Report
  • Rinearson Creek Mitigation Bank Revised 2020 Monitoring Report
  • Rinearson Creek Mitigation Bank 2021 Monitoring Report

  • 28/ 35
    Riverbend North Wetland Mitigation Bank - Inactive

    29/ 35
    Santiam River ODOT Wetland Mitigation Bank - Inactive

    30/ 35
    South Santiam River Wetland Mitigation Bank

  • Approved May 29, 2020/ Last Transaction: October 20, 2023
  • Recorded Permanent Conservation Easement in the National Conservation Easement Database: NO
  • Mitigation Bank Age Calculator

  • South Santiam River Wetland Mitigation Bank
  • Contact: Ray Fiori - Oregon Wetlands LLC
  • 6001 NW Gilmour Road
  • Albany, OR 97321
  • Email: rayf@oregon-wetlands.com
  • Phone: (541) 760-1777

  • Credit Ledger Summary - ***ATTENTION*** Credit reservations and pending transactions are NOT reflected in the Available Credits total. Potential purchasers MUST contact the Sponsor to verify credit availability. No guarantee is given to the accuracy or completeness of these data. Data are updated on a periodic basis without notice.

  • Potential Credits: 50.49
  • Total Site Acres: 100.10
  • Acres Restoration: 2.38
  • Acres Enhancement: 92.02
  • Acres Creation: 2.70
  • Acres Upland Buffer: 3.00

  • Restoration Acres / Credits Ratio: 1:1 (Mitigation Divider)
  • Enhancement Acres / Credits Ratio: 2:1 (Mitigation Divider)
  • Created Acres / Credits Ratio: 1.5:1 (Mitigation Divider)
  • Upland Buffer Acres / Credits Ratio: 10:1 (Mitigation Divider)

  • Released Credits: 35.391
  • Withdrawn Credits: 17.913
  • Currently Available Credits: 17.478

  • Mitigation Bank Instrument
  • South Santiam River Wetland Mitigation Bank As-Built Reort

  • South Santiam River Wetland Mitigation Bank 2020 Monitoring Report

  • 31/ 35
    Tualatin Valley Wetland Mitigation Bank

  • Approved May 31, 2011/ Last Transaction: August 4, 2023
  • Recorded Permanent Conservation Easement in the National Conservation Easement Database: NO
  • Mitigation Bank Age Calculator

  • Tualatin Valley Wetland Mitigation Bank
  • Contact: C. Jonas Moiel - Consultant Senior Ecologist Green Banks, LLC
  • 14200 SE McLoughlin Blvd, Suite A
  • Milwaukee, OR 97267
  • Email: jonas@greenbanksllc.com
  • Phone: (503) 477-5391

  • Credit Ledger Summary - ***ATTENTION*** Credit reservations and pending transactions are NOT reflected in the Available Credits total. Potential purchasers MUST contact the Sponsor to verify credit availability. No guarantee is given to the accuracy or completeness of these data. Data are updated on a periodic basis without notice.

  • Potential Credits: 31.13
  • Total Site Acres: 105.95
  • Acres Restoration: 4.11
  • Acres Enhancement: 33.29
  • Acres Creation: 18.21
  • Acres Upland Buffer: 36.70

  • Restoration Acres / Credits Ratio: 1:1 (Mitigation Divider)
  • Enhancement Acres / Credits Ratio: 3:1 (Mitigation Divider)
  • Created Acres / Credits Ratio: 1.5:1 (Mitigation Divider)
  • Upland Buffer Acres / Credits Ratio: 10:1 (Mitigation Divider)

  • Released Credits: 31.129
  • Withdrawn Credits: 30.4109
  • Currently Available Credits: 0.7181

  • Mitigation Bank Instrument

  • Tualatin Valley Wetland Mitigation Bank 2012 Monitoring Report
  • Tualatin Valley Wetland Mitigation Bank 2013 Monitoring Report
  • Tualatin Valley Wetland Mitigation Bank 2014 Monitoring Report
  • Tualatin Valley Wetland Mitigation Bank 2015 Monitoring Report
  • Tualatin Valley Wetland Mitigation Bank 2016 Monitoring Report
  • Tualatin Valley Wetland Mitigation Bank 2017 Monitoring Report
  • Tualatin Valley Wetland Mitigation Bank 2018 Monitoring Report
  • Tualatin Valley Wetland Mitigation Bank 2019 Monitoring Report

  • 32/ 35
    Weathers Wetland Mitigation Bank - Sold Out

  • Approved: March 2008 / Last Transaction: Unknown
  • Recorded Permanent Conservation Easement in the National Conservation Easement Database: NO
  • Mitigation Bank Age Calculator

  • Weathers Wetland Mitigation Bank
  • Contact: Harley and Emilie Weathers
  • 391 Waconda Road NE
  • Gervais, OR 97026
  • Email: unknown
  • Phone: (503) 391-0188

  • Credit Ledger Summary - ***ATTENTION*** Credit reservations and pending transactions are NOT reflected in the Available Credits total. Potential purchasers MUST contact the Sponsor to verify credit availability. No guarantee is given to the accuracy or completeness of these data. Data are updated on a periodic basis without notice.

  • Potential Credits: 11.67
  • Total Site Acres: 13.69
  • Restoration Wetland Acres: 7.63
  • Create Wetland Acres: 6.06

  • Restoration Wetland Acres / Credits Ratio: 1:1 (Mitigation Divider)
  • Create Wetland Acres / Credits Ratio: 1.5:1 (Mitigation Divider)

  • Released Credits: unknown - presumed 11.67
  • Withdrawn Credits: unknown - presumed 11.67
  • Currently Available Credits: No longer active - presumed sold out

  • Mitigation Bank Instrument

  • Weathers Wetland Mitigation Bank 2008 Monitoring Report
  • Weathers Wetland Mitigation Bank 2009 Monitoring Report

  • 33/ 35
    West Eugene Area Wetland Mitigation Bank

  • Approved: 1995 / Last Transaction: Unknown
  • Recorded Permanent Conservation Easement in the National Conservation Easement Database: YES - Partial
  • Mitigation Bank Age Calculator

  • West Eugene Area Wetland Mitigation Bank
  • Contact: Paul Gordon - Mitigation Bank Coordinator
  • City of Eugene Parks & Open Space
  • 1820 Roosevelt Blvd.
  • Eugene, OR 97402
  • Email: paul.gordon@ci.eugene.or.us
  • Phone: (541) 682-4800

  • Credit Ledger Summary - ***ATTENTION*** Credit reservations and pending transactions are NOT reflected in the Available Credits total. Potential purchasers MUST contact the Sponsor to verify credit availability. No guarantee is given to the accuracy or completeness of these data. Data are updated on a periodic basis without notice.

  • Research is in progress for documenting this long and significantly complicated wetland mitigation banking credit / debit history and the current status. More information is available at: City of Eugene Wetland Mitigation Banking Program

  • West Eugene Wetland Mitigation Bank 1995 Memorandum of Agreement

  • West Eugene Wetland Mitigation Bank 2002 Annual Report
  • West Eugene Wetland Mitigation Bank 2003 Annual Report
  • West Eugene Wetland Mitigation Bank 2004 Annual Report
  • West Eugene Wetland Mitigation Bank 2005 Annual Report
  • West Eugene Wetland Mitigation Bank 2005 Annual Monitoring Report

  • 34/ 35
    Amazon Prairie Wetland Mitigation Bank

  • Approved: February 9, 2022 / Last Transaction: June 29, 2023
  • Recorded Permanent Conservation Easement in the National Conservation Easement Database: NO
  • Mitigation Bank Age Calculator

  • Contact: Shelly Miller - Ecological Services Team and GIS Team Supervisor
  • City of Eugene Parks & Open Space
  • 1820 Roosevelt Blvd.
  • Eugene, OR 97402
  • Email: smiller@eugene-or.gov
  • Phone: (541) 682-4888

  • Credit Ledger Summary - ***ATTENTION*** Credit reservations and pending transactions are NOT reflected in the Available Credits total. Potential purchasers MUST contact the Sponsor to verify credit availability. No guarantee is given to the accuracy or completeness of these data. Data are updated on a periodic basis without notice.

  • Potential Credits: 92.81
  • Total Site Acres: 317.34
  • Acres Restoration: 0.25
  • Acres Enhancement: 295.41
  • Acres Creation: 21.68

  • Released Credits: 16.54
  • Withdrawn Credits: 5.985
  • Currently Available Credits: 10.555

  • Amazon Prairie Wetland Mitigation Bank 2021 Mitigation Bank Instrument

  • 35/ 35
    Salem Stream Mitigation Bank

  • Approved: February 18, 2016 / Last Transaction: November 26, 2021
  • Recorded Permanent Conservation Easement in the National Conservation Easement Database: NO
  • Mitigation Bank Age Calculator

  • Contact: Jennifer Mongolo - Senior Natural Resource Planner
  • City of Salem
  • 555 Liberty Street, Rm 325
  • Salem, OR 97301
  • Email: jmongolo@cityofsalem.net
  • Phone: (503) 588-6211

  • Credit Ledger Summary - ***ATTENTION*** Credit reservations and pending transactions are NOT reflected in the Available Credits total. Potential purchasers MUST contact the Sponsor to verify credit availability. No guarantee is given to the accuracy or completeness of these data. Data are updated on a periodic basis without notice.

  • Potential Stream Credits: 10741
  • Total Site Acres: 60

  • Released Stream Credits: 10741
  • Withdrawn Stream Credits: 58.00
  • Currently Available Stream Credits: 10683

  • Salem Stream Mitigation Bank 2014 Mitigation Bank Instrument
  • Salem Stream Mitigation Bank As-Built Report 1
  • Salem Stream Mitigation Bank Service Area

  • Salem Stream Mitigation Bank 2013 Monitoring Report
  • Salem Stream Mitigation Bank 2014 Monitoring Report
  • Salem Stream Mitigation Bank 2015 Monitoring Report
  • Salem Stream Mitigation Bank 2016 Monitoring Report
  • Salem Stream Mitigation Bank 2017 Monitoring Report
  • Salem Stream Mitigation Bank 2018 Monitoring Report
  • Salem Stream Mitigation Bank 2020 Monitoring Report
  • Salem Stream Mitigation Bank 2021 Monitoring Report
  • Salem Stream Mitigation Bank 2022 Monitoring Report

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    Development Debit and Compensatory Mitigation Credit Transactions

    To determine net mitigation credit remaining and its credit dollar value from a debit/credit transaction, enter the information requested in each of the boxes below and press the calculate button.

    Debit / Credit Transactions
    Development Acres:
    Mitigation Acres:
    Development Multiplier:
    Mitigation Divider:
    Price Per Credit:


    Calculator Interpretation
    Sample Credit / Debit Calculation Worksheet for Mitigation Banks

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


    Development Acres

    This is the amount of acreage of a given natural resource type (e.g., frequent emergent wetland, wetgrass prairie, vernal pool, snowy plover breeding habitat, etc.) that will be converted to alternative uses (e.g., housing sub-divisions, shopping malls, highway interchanges, etc).

    Mitigation Acres

    This is the amount of acreage of a given parcel of land (often degraded farm land or open space) that will be converted to alternative uses (e.g., frequent emergent wetland, wetgrass prairie, vernal pool, snowy plover breeding habitat, etc.) to off-set the loss of the same or similar resources somewhere else.

    Development Multiplier

    This is an assigned number often representing the relative importance of a particular resource type. Resources assigned high importance values are assumed to require a proportionally greater number of acres to compensate for their loss. Factors that can affect the assignment of resource value include but are not limited to: 1) scarcity in the landscape relative to historical extent, 2) time periods required to reach a fully functioning condition, 3) importance to focal concerns (e.g., imperiled species, watershed TMDLs, aesthetic and recreational opportunity, 4) the relative capability of a habitat unit to provide life-cycle requirements for a species, etc.). The acreage of a given development site multiplied by its assigned development multiplier equals the amount of debit accrued by the development action and the amount of credit needed from the mitigation site to off-set the debit.

    Development Multiplier Values
    High: 4 Medium-High: 3 Medium: 2 Low: 1
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    If the development site is equal to 10-acres and the Development Multiplier is 2, then the number of debits is 20 (10 x 2).

    It should be noted here that mitigation "ratios" are often derived directly from ranking comparisons between development sites and compensatory mitigation sites.

    For example if the relative value of the development site is 3 and the relative value of the mitigation site is 2, then the ratio applied to the mitigation action is 3/2 or 1.5:1. Under this principle it is also possible (and hopefully probable) that the development site may be lower value than the mitigation site after the mitigation action is complete and meeting its performance objectives. For example, if the relative value of the development site is 2 and the relative value of the mitigation site is 3, then the ratio aplied to the mitigation action is 2/3 or 0.67:1. Since ratios of < 1 result in a net loss of natural resource acres, many regulatory agencies have taken the option of imposing a minimum compensatory mitigation ratio of 1 (also represented as 1:1).

    It is my intent that future versions of this web site will be connected to a relational database management system (RDMS), possibly Microsoft SQL Server, that will contain data, run queries, and generate reports that reflect known field conditions measured against both performance standard criteria and functional assessment criteria and which will in turn be used to inform compensatory mitigation ratios and to model compensatory mitigation outcomes.

    Mitigation Divider

    This is an assigned number often representing the relative likelihood of mitigation success depending on the compensatory mitigation method(s) employed. Methods that have a low track record of failure are generally assigned low mitigation dividers and those with a demonstrated high risk of failure are typically given higher mitigation dividers. Also compensatory mitigation methods that result in 100% loss of resource acreage are often assigned higher mitigation dividers. The acreage of a given mitigation site divided by its assigned mitigation divider equals the amount of credit available at that mitigation site.

    Mitigation Divider Values
    High: 4 Medium-High: 3 Medium: 2 Low: 1

    If the mitigation site is equal to 10-acres and the mitigation divider is 2, then the number of credits available is 5 (10 / 2).

    Price Per Credit

    The "price per credit" is generally a free-market determined decision often based on the sale prices of credits in the general area being "serviced" by a mitigation site. Factors such as the monetary cost of producing a credit (e.g., costs of land acquisition, site-preparation, maintenance, long-term endowments, etc.) combined with the prices of credits from competing mitigation providers have a relatively large influence on the price a credit is sold for. These prices tend to vary temporally and spatially depending on such factors as supply and demand, the strength of the economy, and proximity to major metropolitan areas.

    Service Area

    The geographic area (e.g., species recovery unit or watershed) surrounding a conservation or mitigation bank where species and/or regulated aquatic resource debits (i.e., development actions) may be accrued against the credits generated by the conservation or mitigation bank

    View Willamette Valley Ecoregion Mitigation Banks

    Note: A good way to use this web map application is to first make sure the area of interest within the Willamette Valley Ecoregion is included in the extent (top to bottom and sides) of the map area you are viewing and that you have opened the attribute table (tab at bottom middle of map view window). Then click on the tab of the bank you are interested in and highlight it by clicking on the gray bar left of the far left column. Next, double click on the record to zoom into the bank boundaries. Repeat these steps for the service areas (SA) of the respective banks of interest. You may want to clear your selections before moving on to the next bank of interest. If you want to see where a proposed project is located in relation to a given bank and / or its Service Area, just type in the project address or coordinates in the serarch box and select the search icon. Be aware that attribute table records are only enabled if their related spatial data are inside the extent you are zoomed to in the map view window. No guarantee is given as to the accuracy or completeness of these data. The data are updated without notice on a periodic basis.

    Willamette Valley Ecoregion Fish Use Data

    Note: Within the Willamette Valley Ecoregion, fish use data become visible roughly at scales where 1-inch equals 1.5-miles. Attribute data can be viewed by left clicking your cursor on the data of interest to execute the opening of a pop-up window and scrolling through the layers using the arrows at the top of the pop-up window container. You can also view the attribute tables and peruse tabs for the data currently in your map view by selecting the attribute icon on the top left corner of the map viewer. The options drop-down arrow at the upper left corner of the attribute table allows you to export the data currently in the map view for each tab as a CSV file. The print icon in the upper left corner of the map viewer allows you to customize and print out a hard copy map of the spatail data currently in your map viewer window. No guarantee is given as to the accuracy or completeness of these data. The data are updated without notice on a periodic basis.

    Willamette Valley Fish Field Guide

    Willamette Valley Focal Species - Work in Progress


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    Other Resources

    Code partially adapted from Marc Goodman's homework assignments and suggestions in 2012 Winter Term CIS 122 Software Design Class at Portland Community College and Lhoucine Zerrouki's 2015 Fall Term CSI-145 Web Design Course at Renton Technical College.


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    Crystal Springs Apartments Grounds

    Image1 Image2 Image3

    John Marshall
    Crystal Springs Apartments
    2215 SE Miller Street Apartment 11
    Portland, Oregon 97202
    jl.marshall@comcast.net
    503.913.1695
    Map
    Image3

    Note: Execution of the above hyperlink requires that you have Google Earth downloaded onto your computer or cell phone