Capitol Lake Reports
Capitol Lake - Deschutes Estuary Long-Term Management Planning Reports
Phase 2 Reports
All reports and information on the current Capitol Lake – Deschutes Estuary Long-Term Management Project Environmental Impact Statement (EIS) can be found on the Project Website.
Phase 1 Report
In January, 2016 the Department of Enterprise Services convened a work group to complete the first of three phases in an overall plan to manage the lake. The community, tribal and local governmental representatives, and coordinating state agencies participated in the Phase 1 planning effort. A completed report was submitted to the Legislature on Dec. 30, 2016.
All files below are Adobe PDF format unless otherwise specified.
Phase 1 report budget proviso
The 2015 Legislature included language in the capital budget for the 2015-17 biennium (page 55, section 1095) directing Enterprise Services to make progress on reaching an agreement about the long-term management of Capitol Lake, building on the recommendations from the 2014 Ruckelshaus Center Situation Assessment report and other past work.
The proviso directed Enterprise Services to prepare a report to submit to the Legislature by Jan. 1, 2017. The report summarizes work group efforts, including the following issues identified in the proviso:
- Identification of common goals for the future management of Capitol Lake.
- Identification of management alternatives, including hybrid approaches of a lake or estuary in which- freshwater from the Deschutes River would mix with the saltwater of Puget Sound.
- Best available science concerning water quality and habitat.
- A sustainable funding plan for future management alternatives.
- A shared governance structure to manage implementation of an immediate plan and oversee the water body over the long-term.
- Other related activities including sediment management and flood mitigation.
2016 Phase I Meeting Documents
Documents from the 2016 Phase I Executive Work Group, Technical Committee, Funding & Governance Committee and Community Input meetings.
2016 Phase I Information Submitted by the Public
The Department of Enterprise Services has posted these submissions for informational purposes only. The opinions and conclusions expressed in these submissions are those of the authors and do not reflect the official policy or position of Enterprise Services or the state of Washington.
Enterprise Services cannot guarantee the accuracy, adequacy, completeness, legality, reliability or usefulness of any information included in these submissions. Enterprise Services has edited the information to remove contact details in order to respect individuals’ privacy.
- Community submitted options for long-term management
- Stakeholder provided information relevant to Capitol Lake
- Ruckelshaus Center Situation Assessment Report on Capitol Lake Management
- Presentation made by the Ruckelshaus Center to the State Capitol Committee and Capitol Campus Design Advisory Committee December 11, 2014
- Video of presentation made by the Ruckelshaus Center to the State Capitol Committee and Capitol Campus Design Advisory Committee on December 11, 2014
- Capitol Lake Dredge Permitting Analysis and Bathymetric Survey Report June 2013
Deschutes Estuary Feasibility Study (DEFS) - Technical Reports
- EPA Deschutes River TMDLs
- Deschutes Estuary Feasibility Study Final Report June 2008
- DEFS - Independent Technical Review October 2007
- DEFS Net Social and Economic Benefit Analysis June 2007
- DEFS - Engineering Design and Cost Estimates February 2007
- Addendum to the DEFS Restoration Study Biological Conditions Report January 2007
- DEFS - Hydrodynamics and Sediment Transport Modeling October 2006
- DEFS Restoration Study Biological Conditions Report September 2006
- DEFS - Net Benefit Analysis - Stakeholder Involvement June 2006
- US Geological Survey (USGS) collected bathymetry data in Capital Lake 2004
CLAMP - Alternatives Analysis
- Capitol Lake Alternatives Analysis Final Report July 2009
- Community Economic Values for the Capitol Lake Basin May 2009
- Capitol Lake Alternatives Analysis - Dredging and Disposal Addendum March 2009
- Study of Cultural & Spiritual Values Associated with Future Alternatives for Capitol Lake Basin 2009
- Capitol Lake Alternatives Analysis: Incorporation of Fine-Grained Sediment Erodability Measurements Into Sediment 2008
- Capitol Lake Alternative Analysis - Hydraulic Modeling November 2008
- Capitol Lake Alternative Analysis - Low Lying Infrastructure November 2008
- Capitol Lake Dam Condition Assessment And Life Expectancy October 2008
- Capitol Lake Dam Condition Assessment And Life Expectancy Appendices A- E October 2008
- Implications of Capitol Lake Management for Fish and Wildlife September 2008
- Capitol Lake Alternative Analysis - Dredging and Disposal August 2008
Long-Term Management Recommendation for the Capitol Lake Basin
- House Capital Budget Committee Presentation March 24, 2011
- Steering Committee Recommendation September 2009
- Capitol Lake Alternatives Analysis – Public Involvement Summary Part A August 2009
- Capitol Lake Alternatives Analysis – Public Involvement Summary Part B August 2009
CLAMP Fact Sheets
- Fact Sheet 9 – Advisory Committee Recommendation 2009
- Fact Sheet 8 - Alternatives Analysis 2008
- Fact Sheet 7 - Creation of Capitol Lake 2007
- Fact Sheet 6 - Net Social and Economic Benefit Analysis 2007
- Fact Sheet 5 - Engineering Design and Cost Estimate Report 2007
- Fact Sheet 4 - Hydrodynamics and Sediment Transport Modeling Report 2006
- Fact Sheet 3 - Reference Estuary and Biological Conditions Report 2006
- Fact Sheet 2 - Deschutes Estuary Feasibility Study 2006
- Fact Sheet 1 - 10-Year Action Plan 2006
- Capitol Lake Weed Management Report 2020
- Capitol Lake Weed Management Report 2019
- Capitol Lake Weed Management Report 2018
- Capitol Lake Weed Management Report 2017
- Capitol Lake Weed Management Report 2016
- Capitol Lake Weed Management Report 2015
- WDFW 2015 New Zealand Mudsnail (NZMS) Statewide Action Summary
- Capitol Lake New Zealand Mudsnail Management Options
- Background information about the New Zealand mudsnail
- Background information about Nutria
Technical Reports by Others
- Deschutes River, Percival Creek, and Budd Inlet Tributaries Temperature, Fecal Coliform Bacteria, Dissolved Oxygen, pH, and Fine Sediment TMDL: Water Quality Improvement Report and Implementation Plan Phase 1 December 2015
- Deschutes River, Capitol Lake, and Budd Inlet Total Maximum Daily Load Study: Supplemental Modeling Scenarios September 2015
- Focus on: Understanding the scientific process used for the Budd Inlet, Capitol Lake, and Deschutes River water cleanup plan - September 2015
- Thurston County Water Quality Report - 2014
- Thurston County Water Quality Report - 2013
- Department of Ecology’s TMDL Technical Report June 2012
- Puget Sound Nearshore Ecosystem Restoration Project (PSNERP) Strategic Restoration Conceptual Engineering Design Report May 2012
- Puget Sound Nearshore Ecosystem Restoration Project (PSNERP) Potential Restoration Site Deschutes River Estuary Summary May 2012
- Thurston County Water Quality Report - 2012
- Thurston County Water Quality Report - 2011
- Other earlier Thurston County Water Quality Reports
- Thurston County Environmental Health and the Thurston County Storm and Surface Water Program
- Sediment Characterization Study - Budd Inlet March 2008
Capitol Lake Adaptive Management Plan
- Vision for the Next Ten Years, 2003 – 2013 October 2002
- Final Environmental Impact Study May 1999
- Capitol Lake Adaptive Management Plan 1999 – 2001 May 1999