Water Quality: Ferndale, WA
19 water systems • 21,726 people served
Multiple Health ViolationsWater Quality Summary
Ferndale is served by 19 public water systems with a combined service population of 21,726 people, and has 502 EPA Safe Drinking Water Act violations on record. Critically, 22 of those are health-based violations, meaning one or more contaminants were detected above EPA-established safe levels — a serious public health concern. Ferndale's violation count is 210% above the national average for Washington. Contaminants associated with violations include E. coli, Selenium, TTHM.
Contaminants Found
Causes gastrointestinal illness; certain strains (e.g., O157:H7) can cause severe kidney failure and death.
Common source: Fecal contamination from humans or animals entering the water supply
EPA limit: Zero (no E. coli permitted in drinking water)
Hair loss, nail brittleness, and nervous system damage at elevated concentrations.
Common source: Natural geological deposits, mining discharges, oil refinery waste
EPA limit: 0.05 mg/L (50 ppb)
Total trihalomethanes are linked to increased risk of bladder cancer and adverse reproductive outcomes.
Common source: Reaction of chlorine disinfectants with naturally occurring organic matter in water
EPA limit: 0.080 mg/L (80 ppb)
Water Systems Serving Ferndale
| System Name | PWSID | Source | Population | Violations |
|---|---|---|---|---|
| FERNDALE | WA5324850 | Groundwater | 19,305 | 4 |
| RATHBONE PARK WATER ASSOC | WA5371290 | Groundwater | 240 | 12 |
| BELFERN WATER ASSOCIATION | WA5305370 | Groundwater | 228 | 4 |
| NEPTUNE BEACH WATER ASSOC | WA5358950 | Groundwater | 200 | 2 |
| PARADISE PARK WATER SYSTEM | WA5366116 | Groundwater | 200 | 1 |
| ENTERPRISE ESTATES WATER ASSOC. | WA5323480 | Groundwater | 184 | 1 |
| EVERGREEN MOBILE PARK & SALES | WA5324151 | Groundwater | 180 | 1 |
| WILLEYS LAKE TERRACE WATER ASSN | WA5397110 | Groundwater | 180 | 4 |
| ORCHARD WATER ASSOC | WA5364150 | Groundwater | 165 | 22 |
| NORTH STAR WATER ASSOC | WA5361350 | Groundwater | 140 | 4 |
| MANTHEYS COUNTRY MOBILE PARK | WA5350900 | Groundwater | 120 | 5 |
| TALL CEDARS ESTATES WATER ASSOC. | WA5387120 | Groundwater | 100 | 53 |
| ENTERPRISE TERRACE WATER ASSN. | WA5323485 | Groundwater | 95 | 8 |
| FERNDALE ESTATES LLC | WA5324840 | Groundwater | 85 | 25 |
| GEORGIA MANOR WATER ASSOC | WA5327450 | Groundwater | 81 | 3 |
| PLEASANT VALLEY WATER SYSTEM | WA5367900 | Groundwater | 73 | 22 |
| DOUBLE L MOBILE HOME PARK | WA5319890 | Groundwater | 58 | 40 |
| THORNTON WATER ASSOCIATION | WA5388050 | Groundwater | 55 | 0 |
| ROYAL COACHMAN MOBIL EST | WA5374705 | Groundwater | 37 | 291 |
Concerned About Your Water?
A home water filter can remove common contaminants. NSF-certified filters are tested against EPA standards.
Consider a reverse osmosis system for comprehensive filtration or a carbon filter for basic improvement.
Other Cities in Washington
Data Sources
Drinking water violation data from the EPA Safe Drinking Water Information System (SDWIS). Data includes all recorded violations for active community water systems.