| Vashon-Maury
Island is an island that lies in the Puget Lowland within the boundaries
of King County. This island encompasses about thirty-seven square
mile area of which 29.7 square miles is Vashon Island and 7.0 square
miles is Maury Island. The two islands are linked by a narrow isthmus
and are not therefore, two truly independent islands. The island
is bordered on the west by Colvos Passage (across from the Kitsap
Peninsula), on the south by Dalco Passage (from Tacoma), on the
east by Puget Sound and King County, and on the north by Puget Sound.
Vashon Island is about 13 miles long (north to south)
and 4 miles across (east to west) in the widest areas. Maury Island
is about 5 miles long (northeast to southwest) and about 1 mile
across (northwest to southeast).
Vashon-Maury Island ground and surface waters provide all of the water
needed for residential, commercial and agricultural needs. Water quality
on Vashon-Maury Island is generally excellent. All drinking water
sources on the island (springs, surface water, and groundwater) are
supplied by local precipitation. Vashon-Maury Island was designated
a Sole Source Aquifer by the United States Environmental Protection
Agency in June 1994. The majority of the residents of Vashon-Maury
Island get their drinking water from public water systems.
Vashon-Maury Island
Groundwater Protection Committee
Groundwater
interactive map and searchable database of groundwater data
Note: this link will open a new browser
window
Vashon-Maury Island Groundwater Maps
Vashon-Maury Island Groundwater Reports
Vashon-Maury Island Watershed Plan
The watershed plan describing many aspects of Vashon-Maury Island, published June, 2005.
Ongoing Groundwater Studies
Vashon-Maury Island Water Resources Evaluation
The Vashon-Maury Island Water Resources Evaluation is a project
designed to describe and assess the water resources of the island.
This project will provide a better understanding of how different
activities can adversely affect the island's water quality and quantity
and lead to an updated, more accurate water supply budget for the
island.
Latest Report
Water Suppliers on Vashon-Maury Island
This Groundwater Management Area has 22 Group
A and 106
Group B Public Water Systems. The majority of the residents
in this GWMA are serviced by the following
Water Utility Service areas:
| Burton |
KC Water District 19 |
| Dockton |
Maury Mutual |
| Gold Beach |
Westside |
| Heights |
|
This page is produced by the King County Groundwater Protection
Program. To learn more about this group and its responsibilities,
please read about the Groundwater
Protection Program. |