Regulations 

• 2022-23 Mitigation Fee Schedule 
• Ordinance 16217 Approving Mitigation Fee (11/2022)
• Ordinance 16216 Approving Code Changes (11/2022)

Environmental Impact Statement 

• EIS Determination of Significance
• EIS Checklist
• Draft EIS & Appendices
• Final EIS and Appendices

HCP Economic Analysis 

• Executive Summary
• HCP Economic Study (full)

Public Participation 

• Public Participation Plan
• Public Comments

Habitat Conservation Plan 

• Habitat Conservation Plan - submitted to USFWS February 2022 with Appendices

• Quick Facts 
• Overview 
• Permit Process
• Projects Excluded from Review
• Habitat Calculation Tool
• Species and Habitat Conservation 
• About the Environmental Impact Statement 

• Presentation to OMB 8/25/2022
• Presentation to MLSA 6/14/2022
• Presentation about Conservation Program
• Presentation about the USFWS Review of the County's HCP
• Presentation about the Oregon Spotted Frog
• ​Presentation to Washington Dept. of Fish & Wildlife 

Documents Related to HCP Planning & the Federal ITP Permit (PDFs)

• 2011 Thurston County Regional Planning Council Profile (statistics, trends, analyses, and comparisons for Thurston County and its individual jurisdictions) 
• 2012 Thurston County Regional Planning Council Population & Employment Land Supply Assumptions
• 2012 Ecology Calculating Credits and Debits for Compensatory Mitigation in Wetlands of Western Washington
• 2014 USFWS, WDFW & TC Selection of areas in Thurston County for long-term conservation and recovery of the Mazama pocket gopher (MPG) 
• 2019 Thurston County Regional Planning Council Population & Employment Land Supply Assumptions
• 2022 USFWS Findings and Recommendations Regarding the Proposed Issuance of Incedental Take Permit for Thurston County's HCP 
• 2020 Climate Change Adaptation Approach for HCPs

Endangered Species Act Listings & Petition (PDFs)

• 2013 USFWS Federal Register Listing for Taylor's checkerspot butterfly
• 2014 USFWS Federal Register Listing for Mazama pocket gopher
• 2016 USFWS Federal Register Listing for Oregon spotted frog
• 2017 American Bird Conservancy Petition to List Oregon Vesper Sparrow under the Endangered Species Act
• 2018 USFWS Federal Register Listing for Oregon vesper sparrow

Species & Habitat Science (PDFs)
 

General 

• 1990 Soil Survey from Washington State Department of Natural Resources and Washington State University Agriculture Research Center, United States Department of Agriculture
• 2011 Northwest Scientific Association Climate Change Impacts on Western Pacific Northwest Prairies & Savannas
   

Bird (Oregon Vesper Sparrow & Streaked Horned Lark) 

• 2005 WDFW Status Report for Mazama Pocket Gopher, Streaked horned lark, and Taylor's checkerspot butterfly 
• 2013 USFWS Designation of Critical Habitat for Taylor's checkerspot butterfly and Streaked horned lark
• 2021 WDFW Status Report for Oregon Vesper Sparrow
   

Butterfly (Taylor's checkerspot) 

• 2005 WDFW Status Report for Mazama Pocket Gopher, Streaked horned lark, and Taylor's checkerspot butterfly 
• 2013 USFWS Designation of Critical Habitat for Taylor's checkerspot butterfly and Streaked horned lark
• 2013 WDFW Progress Report for Taylor's checkerspot Captive Rearing and Translocation 
• 2014 WDFW Progress Report for Taylor's checkerspot Captive Rearing and Translocation 
• 2016 WDFW Status Report for Taylor’s Checkerspot Butterfly
• 2019 WDFW Progress Report for Taylor's checkerspot Captive Rearing and Translocation 
   

Frog (Oregon spotted)

• 2013 WDFW Oregon Spotted Frog Recovery Plan
• 2016 USFWS Designation of Critical Habitat for Oregon Spotted Frog

Gopher (Mazama Pocket Gopher subspecies)

• 2005 WDFW Status Report for Mazama Pocket Gopher, Streaked horned lark, and Taylor's checkerspot butterfly 
• 2013 WDFW Status Report for Mazama Pocket Gopher
• 2014 USFWS Designation of Critical Habitat for Mazama Pocket Gopher
• 2014 USFWS & WDFW Reserves for Mazama Pocket Gopher Considerations for Thurston County HCP
• 2015 USFWS Memo for Mazama pocket gopher Conservation Strategy and Mitigation Guidance
• 2015 USFWS Results Report of the Mazama Pocket Gopher Screening in Thurston County
• 2016 USFWS Results Report of the Mazama Pocket Gopher Screening in Thurston County
• 2017 USFWS Memo Mazama Pocket Gopher Service Areas Revised 
• 2017 USFWS Results Report of the Mazama Pocket Gopher Screening in Thurston County
• 2018 USFWS Screening Protocol for Mazama Pocket Gopher 
• 2020 WDFW Status Report for Mazama Pocket Gopher

Important Notice: The reports, memos and documents on this page do not constitute the full body of knowledge and supporting science used to develop the Thurston County Habitat Conservation Plan (HCP), the Environmental Impact Statement for the HCP, or related documents. A fuller list can be found by revewing the references cited in the documents on this page.