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Sea Level Rise Buffer Zone proposed in update to King County Comprehensive Plan Update: Comment period ends July 31, 2019

Vashon-Maury Island sea level rise buffer map locator
View sea level rise maps

The update to the King County Comprehensive Plan proposes, among many things, to establish policy and regulatory changes to prepare for sea level rise impacts; these affect bluff setbacks, wellhead protection, home elevation and bulkheads. Draft Sea Level Rise Buffer Zone maps are available for review as well as answers to frequently asked questions about sea level rise on Vashon-Maury Island.

The 2020 Public Review Draft was released on July 1 and comments will be accepted through the end of July 2019 at public meetings or by email to:

Read answers to frequently asked comments about sea level rise on Vashon-Maury Island .

Vashon-Maury Island page provides environmental information and services from King County and its partners related specifically to the island. For more information about Vashon-Maury Island or to get involved in Water and Land activities, please call Greg Rabourn, Vashon/Maury Island Watershed Steward, at 206-477-4805. Related information can be found for the Central Puget Sound Watershed, of which Vashon-Maury Island is a part.

Basin Steward Program
Find out what Water and Land Resources' Basin Steward Program does and how to contact Basin Stewards.

Current projects

Dockton Shoreline Restoration Project
Project is planned for summer 2012, restoring the shoreline and a salt marsh at Dockton, WA on Vashon/Maury Island.  Includes Determination of Non-Significance under the State Environmental Policy Act (SEPA).

Vashon Habitat Stewardship Whirlwind event
Presentation videos covering a variety of wildlife habitat topics related to Vashon and Maury Islands. Presented January, 2013 at McMurray Middle School.

Salmon recovery

WRIA 9 Salmon Recovery (includes Vashon-Maury Island)
For the purposes of salmon conservation planning, Vashon-Maury Island was transferred from WRIA 15 (Kitsap County) to WRIA 9, the Green/Duwamish and Central Puget Sound drainage area. The salmon recovery site provides status and actions about the recovery of threatened salmon species in WRIA 9, including an overview of the planning process, scientific information, and meeting records. We welcome your participation.

Surface water, groundwater, and drinking water

Introduction to watersheds

Report problems: drainage and water quality

Protecting Our Liquid Assets - informational mailer describing Vashon-Maury Island's valuable water resources.

Vashon-Maury Island Watershed Plan
Plan assessing the water resources on Vashon and Maury Islands and to help resolve surface water issues.

Pollution monitoring
Ongoing water quality sampling in Vashon-Maury Island streams. Water quality data are available online for:

Vashon-Maury Island Rapid Rural Reconnaissance - Draft Report
Inventory of the island's surface water needs. This report lists priority drainage and water quality projects, acquisitions, studies and programs that would receive funding through surface water management fees.

King County's surface water management fee for unincorporated King County & Vashon Island
Provides a history of King County's surface water management program, its services and fees, and contacts for more information.

Vashon - Maury Island Water Resources Evaluation
Read about this long-term project to understand what affects the quality and quantity of the island's groundwater, and update it's drinking water budget based on new knowledge.

Vashon-Maury Island Groundwater Management Area
Read the groundwater sampling and analysis plan, an interactive map, and learn about the area's groundwater protection committee..

Vashon-Maury Island stream mouth assessment (external link)
(2001) Vashon Island stream habitat health including fish barriers; intended to protect streams, support informed land-use decisions, and guide restoration efforts. King County is proud to have supported this grassroots effort, co-funded by the Vashon-Maury Island Audubon, Trout and Salmon Foundation and Washington Trout. About the project.

Rain barrel information and sources for the Pacific Northwest
How to design a rain barrel or cistern system and where to buy them.

Wastewater treatment

Vashon wastewater treatment plant
Learn about this treatment plant including details about a project to upgrade it. This page provides notices of public meetings, news releases, contact information and a map showing where the plant is located.

Beaches, nearshore and marine environment

Vashon-Maury Island nearby tide graphs, courtesy of NOAA

Marine monitoring data

Marine Shoreline Inventory Report
Inventory of selected shoreline habitat features that support juvenile salmonids, presented in part using high-resolution aerial photos with overlays that classify habitat types.

Quartermaster Harbor Nitrogen Management Study
This study will evaluate the role of nitrogen in the risk of lethal, low-level dissolved oxygen events in Quartermaster Harbor, a sensitive marine embayment of Vashon-Maury Island in Puget Sound.

Juvenile Salmonid Composition, Timing, Distribution, and Diet in Marine Nearshore Waters of Central Puget Sound in 2001-2002
Scientific report essential to protect and recover Puget Sound salmon stocks.

Prioritization of Marine Shorelines of WRIA 9 for Juvenile Salmonid Habitat Protection and Restoration (2006)
Identifies Puget Sound shoreline habitats in southern King County that should be preserved or restored to help salmon.

Puget Sound Shoreline Stewardship Guidebook
Provides info and contacts for residents of beach and bluff shorelines to learn about natural shoreline protection, manage runoff, use native plants, control aggressive non-native plants, and maintain septic systems in an ecologically friendly way.

Hermicen - Marine InvertebratePuget Sound marine life photos
A photo collection of Puget Sound fish, invertebrates, and algae to aid the identification of marine species.

Puget Sound Nearshore Environment

Small stream mouth

The Puget Sound Nearshore Environment. An illustrated presentation.

Go to

Beyond the Beach:
Learn about the Nearshore Environment and what you can do to help protect it from damage.

image of report cover
State of the Nearshore Report

Summary and assessment of the state of our current knowledge of ecological processes and conditions, natural resources, and ecosystem health in nearshore portions of Central Puget Sound. Intended to provide a foundation for future environmental work and decision making.

Recreation and appreciation

Vashon–Maury Island parks & natural lands map and guide
Places for residents and visitors to get outside across Vashon-Maury Island.

Island Center Forest
363-acre working forest and ecological lands in the middle of Vashon Island.

Island Center Forest recreation map

Maury Island Marine Park recreation map

Dockton Forest recreation map


Noxious weed infestation map
Interactive map showing location of regulated noxious weed infestations.

Agriculture in King County, Washington

Quality assurance project plan for regulatory effectiveness monitoring for developing rural areas
Framework to monitor and evaluate land use regulations to help ensure their effectiveness, using indicators for hydrology, water quality, biology, and stream complexity.

Maury Island Ecological Economic Evaluation
Report describing the island's ecological assets and estimating their economic value to help inform decisions related to resource conservation, land use planning and sustainable practices.

Forestry services and information

Map locator - Vashon-Maury Island Proposed Sea Level Rise Buffer Map 1: Vashon-Maury Island Proposed Sea Level Rise Buffer Map 2: Vashon-Maury Island Proposed Sea Level Rise Buffer Map 3: Vashon-Maury Island Proposed Sea Level Rise Buffer Map 4: Vashon-Maury Island Proposed Sea Level Rise Buffer Map 5: Vashon-Maury Island Proposed Sea Level Rise Buffer Map 6: Vashon-Maury Island Proposed Sea Level Rise Buffer Map 7: Vashon-Maury Island Proposed Sea Level Rise Buffer Map 8: Vashon-Maury Island Proposed Sea Level Rise Buffer Map 9: Vashon-Maury Island Proposed Sea Level Rise Buffer