Ferndale Water Quality
Washington
According to EPA SDWIS, Ferndale, Washington is served by 19 community water systems covering about 21,726 people. The same extract lists 23 health-based violation records, most recently coded 1040 in 2025. Counts are historical EPA registry rows, not a current compliance or drinkability score.
Drinking water in Ferndale, Washington is delivered through 19 EPA-regulated community water systems serving an estimated 21,726 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 23 violation records across the 19 active community systems shown here. Monitoring and reporting records are not present in the extract. The records carry 3 distinct EPA contaminant codes: Nitrate, TTHM, Revised Total Coliform Rule. 6 TRI-reporting industrial facilities are also located within the city limits.
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 |
|---|---|---|---|
| FERNDALE | 19,305 | 0 | Clean |
| RATHBONE PARK WATER ASSOC | 240 | 9 | Health |
| BELFERN WATER ASSOCIATION | 228 | 0 | Clean |
| NEPTUNE BEACH WATER ASSOC | 200 | 0 | Clean |
| PARADISE PARK WATER SYSTEM | 200 | 0 | Clean |
| ENTERPRISE ESTATES WATER ASSOC. | 184 | 0 | Clean |
| EVERGREEN MOBILE PARK & SALES | 180 | 1 | Health |
| WILLEYS LAKE TERRACE WATER ASSN | 180 | 4 | Health |
| ORCHARD WATER ASSOC | 165 | 0 | Clean |
| NORTH STAR WATER ASSOC | 140 | 0 | Clean |
| MANTHEYS COUNTRY MOBILE PARK | 120 | 0 | Clean |
| TALL CEDARS ESTATES WATER ASSOC. | 100 | 0 | Clean |
| ENTERPRISE TERRACE WATER ASSN. | 95 | 1 | Health |
| FERNDALE ESTATES LLC | 85 | 6 | Health |
| GEORGIA MANOR WATER ASSOC | 81 | 0 | Clean |
| PLEASANT VALLEY WATER SYSTEM | 73 | 1 | Health |
| DOUBLE L MOBILE HOME PARK | 58 | 1 | Health |
| THORNTON WATER ASSOCIATION | 55 | 0 | Clean |
| ROYAL COACHMAN MOBIL EST | 37 | 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 |
|---|---|---|
| WILLEYS LAKE TERRACE WATER ASSN | Nitrate | 2025-04-01 |
| WILLEYS LAKE TERRACE WATER ASSN | Nitrate | 2024-01-01 |
| WILLEYS LAKE TERRACE WATER ASSN | Nitrate | 2024-01-01 |
| WILLEYS LAKE TERRACE WATER ASSN | Nitrate | 2024-01-01 |
| FERNDALE ESTATES LLC | TTHM | 2023-07-01 |
| FERNDALE ESTATES LLC | TTHM | 2023-07-01 |
| FERNDALE ESTATES LLC | TTHM | 2023-07-01 |
| FERNDALE ESTATES LLC | TTHM | 2023-04-01 |
| FERNDALE ESTATES LLC | TTHM | 2023-04-01 |
| FERNDALE ESTATES LLC | TTHM | 2023-04-01 |
| ENTERPRISE TERRACE WATER ASSN. | Revised Total Coliform Rule | 2018-10-01 |
| DOUBLE L MOBILE HOME PARK | Revised Total Coliform Rule | 2018-07-01 |
| RATHBONE PARK WATER ASSOC | Nitrate | 2017-07-01 |
| RATHBONE PARK WATER ASSOC | Nitrate | 2017-07-01 |
| RATHBONE PARK WATER ASSOC | Nitrate | 2017-07-01 |
| RATHBONE PARK WATER ASSOC | Nitrate | 2017-07-01 |
| PLEASANT VALLEY WATER SYSTEM | Revised Total Coliform Rule | 2017-07-01 |
| RATHBONE PARK WATER ASSOC | Nitrate | 2017-01-01 |
| RATHBONE PARK WATER ASSOC | Nitrate | 2017-01-01 |
| RATHBONE PARK WATER ASSOC | Nitrate | 2017-01-01 |
| RATHBONE PARK WATER ASSOC | Nitrate | 2017-01-01 |
| RATHBONE PARK WATER ASSOC | Nitrate | 2017-01-01 |
| EVERGREEN MOBILE PARK & SALES | Revised Total Coliform Rule | 2016-12-01 |
What are Ferndale's health-based records for?
Ferndale's health-based violation records carry 3 distinct EPA codes: some name a substance, others the drinking-water rule that was breached. Counts are records on file in the EPA SDWIS extract, not current test results.
| Contaminant | Records | Systems |
|---|---|---|
| Nitrate | 13 | 2 |
| Tthm | 6 | 1 |
| Revised Total Coliform Rule | 4 | 4 |
TRI Facilities in Ferndale
| Facility | Total Releases |
|---|---|
| Phillips 66 Ferndale Refinery | 1.5M lbs |
| Intalco Aluminum LLC | 795.1K lbs |
| Chemco Inc | 157.4K lbs |
| Linde Inc | 70.9K lbs |
| Pse Ferndale Generating Station | 65.0K lbs |
| Cargill Animal Nutrition | 0 lbs |
Frequently Asked Questions
What does EPA SDWIS list for drinking water in Ferndale, Washington? ▼
How many water violations does Ferndale have in this EPA extract? ▼
What contaminants were found in Ferndale water? ▼
How many water systems serve Ferndale? ▼
Where does Ferndale get its drinking water? ▼
Are there pollution sources near Ferndale? ▼
How does Ferndale compare in Washington?
Of the 365 Washington places with at least one community water system on file, Ferndale ranks #28 by number of systems (19).
Either side of it: Wenatchee (20), Bellingham (19), Vancouver (19), Friday Harbor (18)
About This Data
Figures here are the current EPA SDWIS extract joined to the 19 community water systems whose service area lists Ferndale, 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.