City and town drinking water records

Water systems serving Sequim, WA

4 community water systems have a mapped service area in Sequim, WA. City of Sequim covers 77% of the area inside Sequim's Census boundary and reports serving 14,293 people in all.

None of them had a health-based violation in the last 10 years.

4 rely mainly on groundwater, counting water bought from other systems.

3 systems filed a lead service line inventory listing 0 lead lines, 0 galvanized lines that must be replaced and 305 lines of unknown material.

2 more systems are placed in Sequim by EPA's town record because they have no service area map that lines up with their own records, so they are listed apart and not counted here.

Community water systems: 4
Systems with a health-based violation, last 10 years: 0
Systems with one unresolved: 0
Lead service lines in inventories: 0

Water systems serving Sequim

4 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	Lead lines
City of Sequim	Covers 77% of Sequim	14,293	Groundwater	0
Evergreen Clallam County PUD 1	Covers 11% of Sequim	1,694	Groundwater	0
Resort and Marina	Covers 6% of Sequim	409	Groundwater	No inventory
Peterson-Whittaker	Mapped area inside Sequim	26	Groundwater	0

Systems placed by EPA's town record in Sequim

2 systems

The service area maps EPA has for these systems do not line up with their own records. They are placed by EPA's town record (EPA lists them serving this town), and without a map they are not counted in the figures above.

System	Area	People served	Main source	Health-based violations, 10 years	Unresolved	Lead lines
Mt. Vista - Dungeness Golf Course	Town on record	517	Groundwater	0	0	0
Beach	Town on record	45	Groundwater	0	0	0

Other cities and towns in Clallam County

10 places

Back to Clallam 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