City and town drinking water records

Water systems serving Vashon, WA

12 community water systems have a mapped service area in Vashon, WA. Water District 19 covers 17% of the area inside Vashon's Census boundary and reports serving 3,723 people in all.

1 of them (8%) had at least one health-based violation in the last 10 years. 5 systems still have one unresolved.

11 rely mainly on groundwater and 1 on surface water, counting water bought from other systems.

7 systems filed a lead service line inventory listing 0 lead lines, 2 galvanized lines that must be replaced and 1,614 lines of unknown material.

Community water systems: 12
Systems with a health-based violation, last 10 years: 1
Systems with one unresolved: 5
Lead service lines in inventories: 0

Water systems serving Vashon

12 systems

People served is each system's own figure for its whole service area. Violation counts cover the last 10 years of EPA records.

System	Area	People served	Main source	Health-based violations, 10 years	Unresolved	Lead lines
Water District 19	Covers 17% of Vashon	3,723	Surface water	2	0	0
Heights Water	Covers 9% of Vashon	2,051	Groundwater	0	0	0
Westside Water Assn	Covers 8% of Vashon	562	Groundwater	0	1	No inventory
Dockton Water Association	Covers 7% of Vashon	992	Groundwater	0	0	0
Maury Mutual Water Co	Mapped area inside Vashon	233	Groundwater	0	1	0
Sunnyslope Mutual Water System	Mapped area inside Vashon	85	Groundwater	0	1	No inventory
Burton Water Cooperative	Mapped area inside Vashon	964	Groundwater	0	1	No inventory
Prospect Point Beach Club	Mapped area inside Vashon	85	Groundwater	0	0	0
Marine Estates Mutual Water Assn	Mapped area inside Vashon	38	Groundwater	0	1	No inventory
Beulah Park Community	Mapped area inside Vashon	106	Groundwater	0	0	0
Gold Beach Water Company	Mapped area inside Vashon	390	Groundwater	0	0	0
Shawnee Hill Condominium WS	Mapped area inside Vashon	44	Groundwater	0	0	No inventory

Other cities and towns in King County

61 places

Back to King County, WA

Counties come from the counties EPA lists each system serving, matched to 2024 Census counties; where EPA lists none, from the county coded in the system's ID, its service area map, or its mailing address. A county holding at least a fifth of a system's service area map is added when at least a fifth of that map lies in those counties. Towns are the ones EPA lists and the Census places such a map covers, always inside those counties. In New England, where EPA's town names a whole Town, it is not matched to the village of the same name. A system is not listed in a county holding less than a fifth of its map, or in a county or town its map reaches when the map lies mostly outside the counties EPA lists, so a page can leave out a system that serves part of the area. Methodology and limitations