Lopez Island Water Quality
Washington
According to EPA SDWIS, Lopez Island, Washington is served by 11 community water systems covering about 1,758 people. PlainEnviro's health-based extract shows zero health-based violation records for those systems. Counts are historical EPA registry rows, not a current compliance or drinkability score.
Drinking water in Lopez Island, Washington is delivered through 11 EPA-regulated community water systems serving an estimated 1,758 people. Each system is tracked in the EPA Safe Drinking Water Information System (SDWIS) under the Safe Drinking Water Act, which requires testing for regulated contaminants, consumer notification of violations, and publication of an annual Consumer Confidence Report.
PlainEnviro's health-based SDWIS extract shows 0 violation records across the 11 active community systems shown here. Monitoring and reporting records are not present in the extract. No contaminant code appears in the health-based records.
A past EPA health-based registry row does not describe water delivered today or current compliance status; utilities notify customers and remediate under state primacy oversight when required. For current water-quality status and treatment practices, review your local utility's most recent Consumer Confidence Report or contact the Washington drinking water program. All records above reflect federal EPA SDWIS data and are not independently verified against state databases.
Community Water Systems
| System Name | Pop. Served | Violations | Status |
|---|---|---|---|
| FISHERMAN BAY WATER ASSOCIATION | 1,195 | 0 | Clean |
| MacKaye Harbor Water District | 133 | 0 | Clean |
| NORTH LOPEZ SERVICE | 114 | 0 | Clean |
| HARBOR ON FISHERMAN BAY | 84 | 0 | Clean |
| ALECK BAY PARK WATER SYSTEM | 40 | 0 | Clean |
| HUMPHREY HEAD OWNERS ASSOC | 37 | 0 | Clean |
| Common Field Water System | 36 | 0 | Clean |
| SHOAL BAY & SWIFT BAY WATER ASSN. | 35 | 0 | Clean |
| Milagra Water System | 31 | 0 | Clean |
| SUNRISE BEACH ASSOCIATION | 27 | 0 | Clean |
| Salish Sea Water System | 26 | 0 | Clean |
Frequently Asked Questions
What does EPA SDWIS list for drinking water in Lopez Island, Washington? ▼
How many water violations does Lopez Island have in this EPA extract? ▼
How many water systems serve Lopez Island? ▼
Where does Lopez Island get its drinking water? ▼
How does Lopez Island compare in Washington?
Of the 365 Washington places with at least one community water system on file, Lopez Island ranks #42 by number of systems (11).
Either side of it: Snohomish (12), Kent (11), Maple Falls (11), Port Townsend (11)
About This Data
Figures here are the current EPA SDWIS extract joined to the 11 community water systems whose service area lists Lopez Island, ranked against the 365 Washington places with at least one system on file. Data current as of 2026-08-25.
Water system data comes from the EPA's Safe Drinking Water Information System (SDWIS). PlainEnviro's violation fetch is restricted upstream to records EPA flags as health-based and then joined to active community water systems. Monitoring and reporting violations are not included.
A health-based violation row in this extract is a historical EPA registry entry. It does not describe water delivered today or current compliance status. Many records are later resolved, and public water systems notify customers when required. For current conditions, contact your local water utility or the state drinking water program.
TRI facility data comes from the EPA Toxic Release Inventory. Facilities shown are those that self-report to the TRI program. PlainEnviro presents this data without advocacy framing.
Read our methodology - how this data is sourced, computed, and verified.