Belmont, WA Water Safety: 53/100 (2026)
1 ZIP code · 1 water system · Updated 2026-06-03
Drinking water quality in Belmont has lagged behind WA benchmarks — documented violations keep the safety grade low.
How Belmont Compares
Data: EPA SDWIS Last verified: 2026-06-03
What You Should Know About Belmont Water
- Estimated remediation: $400 per household.
- CDC health risk index: 9.94.
Who Supplies Your Water in Belmont
As of current federal records, Belmont, WA is served primarily by one water utility among 1 tracked system. That single provider handles infrastructure investment, rate adjustments, and regulatory reporting under EPA oversight.
Overview
We track water quality and home safety data for 1 ZIP code in Belmont, Washington, covering 1 community water system serving approximately 165 people.
No EPA violations recorded across any ZIP codes in Belmont — an excellent indicator of water quality.
Home Safety Score
Average Home Safety Score for Belmont: D (53/100)
The score combines three factors:
| Factor | What It Measures |
|---|---|
| Water Quality | EPA violations and compliance history |
| Lead Levels | 90th percentile lead concentration vs EPA action level |
| Radon Risk | EPA radon zone classification |
Water Sources
Belmont water systems draw from: Groundwater.
Lead & Copper
- Lead data: not yet available for Belmont
- 0 ZIP codes exceed the EPA lead action level
Radon Risk
Dominant radon zone: Zone 2 (Moderate Risk)
The EPA recommends testing homes in Zone 1 and Zone 2 areas for radon.
Areas with No Violations
| ZIP Code | Safety Score | System | Population |
|---|---|---|---|
| 99104 | D | FARMINGTON WATER DEPT | 165 |
All ZIP Codes in Belmont
- 99104 [D]
Data Sources
- Water quality: EPA Safe Drinking Water Information System (SDWIS)
- Lead/copper: EPA Lead and Copper Rule sampling data
- Radon: EPA Map of Radon Zones
Updated daily.
Health Outcomes in Belmont
Source: CDC PLACES (County-level estimates). Water contamination can correlate with respiratory and chronic health conditions.
Compared to National Average
Vertical line = national average. ■ Above national · ■ Below national
What You Can Do in Belmont
- Test your water at home. City-level data shows averages — your tap may differ. NSF-certified test kits cost $20-40 and give results in days.
- Install a certified water filter. An NSF-certified pitcher or under-sink filter removes most common contaminants.
- Check your home's plumbing. Homes built before 1986 may have lead solder in pipes. A licensed plumber can assess your risk.
- Review your water system's CCR. Your utility publishes an annual Consumer Confidence Report with detailed test results. Request it or find it online.
Deep Dive Reports
Detailed analysis for Belmont, WA