Maple Falls Water Quality
Washington
According to EPA SDWIS, Maple Falls, Washington is served by 11 community water systems covering about 4,647 people. The same extract lists 8 health-based violation records, most recently coded 1005 in 2025. Counts are historical EPA registry rows, not a current compliance or drinkability score.
Drinking water in Maple Falls, Washington is delivered through 11 EPA-regulated community water systems serving an estimated 4,647 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 8 violation records across the 11 active community systems shown here. Monitoring and reporting records are not present in the extract. The records carry 1 distinct EPA contaminant code: Arsenic.
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 |
|---|---|---|---|
| Columbia Valley Water District | 2,648 | 0 | Clean |
| WHATCOM COUNTY WATER DIST 13 | 795 | 0 | Clean |
| HAMILTON WATER DEPARTMENT | 540 | 0 | Clean |
| MAPLE FALLS WATER COOP | 222 | 0 | Clean |
| ISLE AIRE BEACH ASSOCIATION | 125 | 8 | Health |
| PRAIRIE ACRES WATER SYSTEM | 90 | 0 | Clean |
| RIVER LANE COMMUNITY CLUB | 72 | 0 | Clean |
| WILDLIFE ACRES WATER ASSOCIATION | 46 | 0 | Clean |
| CALMAN JAMES L. | 40 | 0 | Clean |
| PRAIRIE ESTATES WATER SYSTEM | 39 | 0 | Clean |
| RIVER RD WATER ASSOCIATION | 30 | 0 | Clean |
Does this city have health-based water violations?
These health-based records can represent Maximum Contaminant Level (MCL), Treatment Technique (TT), or Maximum Residual Disinfectant Level (MRDL) categories. A historical record does not establish that water is currently unsafe.
| Water system | Contaminant | Begin Date |
|---|---|---|
| ISLE AIRE BEACH ASSOCIATION | Arsenic | 2025-01-01 |
| ISLE AIRE BEACH ASSOCIATION | Arsenic | 2024-10-01 |
| ISLE AIRE BEACH ASSOCIATION | Arsenic | 2024-10-01 |
| ISLE AIRE BEACH ASSOCIATION | Arsenic | 2024-07-01 |
| ISLE AIRE BEACH ASSOCIATION | Arsenic | 2024-07-01 |
| ISLE AIRE BEACH ASSOCIATION | Arsenic | 2024-07-01 |
| ISLE AIRE BEACH ASSOCIATION | Arsenic | 2024-04-01 |
| ISLE AIRE BEACH ASSOCIATION | Arsenic | 2024-04-01 |
What are Maple Falls's health-based records for?
Every health-based violation record in Maple Falls carries one EPA contaminant or rule code. Counts are records on file in the EPA SDWIS extract, not current test results.
| Contaminant | Records | Systems |
|---|---|---|
| Arsenic | 8 | 1 |
Frequently Asked Questions
What does EPA SDWIS list for drinking water in Maple Falls, Washington? ▼
How many water violations does Maple Falls have in this EPA extract? ▼
What contaminants were found in Maple Falls water? ▼
How many water systems serve Maple Falls? ▼
Where does Maple Falls get its drinking water? ▼
How does Maple Falls compare in Washington?
Of the 365 Washington places with at least one community water system on file, Maple Falls ranks #43 by number of systems (11).
Either side of it: Kent (11), Lopez Island (11), Port Townsend (11), Silverdale (11)
About This Data
Figures here are the current EPA SDWIS extract joined to the 11 community water systems whose service area lists Maple Falls, 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.