Neilton, WA: 1 Violation — 99/100 (2026)
1 ZIP code · 1 water system · Updated 2026-06-03
Neilton's tap water quality puts it in WA's upper tier — health-based violations are rare and the compliance record is consistently above average.
How Neilton Compares
Data: EPA SDWIS Last verified: 2026-06-03
Neilton Water: The Quick Version
- Your city's water systems recorded 1 violation in the past 5 years.
- Average lead level: 0.0025 mg/L.
- Homes built before 1986: 83% — older plumbing may contain lead solder.
- CDC health risk index: 14.51 — above typical levels.
Water Systems Serving Neilton
Federal drinking water records identify 1 system operating in Neilton, WA. One of those systems serves the overwhelming majority of residential addresses, concentrating infrastructure management, rate authority, and EPA compliance reporting within a single organization.
Overview
We track water quality and home safety data for 1 ZIP code in Neilton, Washington, covering 1 community water system serving approximately 281 people.
1 of 1 ZIP code (100%) have recorded EPA violations. All violations are monitoring/reporting type.
Home Safety Score
Average Home Safety Score for Neilton: A (99/100)
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
Neilton water systems draw from: Groundwater.
Lead & Copper
- Average lead level (90th percentile): 0.0025 mg/L (EPA action level: 0.015 mg/L)
- 0 ZIP codes exceed the EPA lead action level
Radon Risk
Dominant radon zone: Zone 3 (Low Risk)
Top Contaminants
| Contaminant | Category | Violations | ZIPs Affected |
|---|---|---|---|
| Surface Water Treatment Rule | Treatment Technique | 2 | 1 |
Areas with Most Violations
| ZIP Code | Safety Score | Violations | Health-Based | System |
|---|---|---|---|---|
| 98566 | A | 1 | 0 | Neilton Meadowland Water District 8 a |
All ZIP Codes in Neilton
- 98566 [A] — 1 violation
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.
CDC Health Data for Neilton
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
Key Contaminants Detected in Neilton
Based on EPA violation records. Check your ZIP code report for system-specific contaminant data.
How Old Is Neilton's Housing Stock?
With 83% of homes built before 1986, lead solder in plumbing is a potential concern. The EPA banned lead solder in 1986, but many older homes retain original plumbing.
Source: U.S. Census Bureau American Community Survey (ACS).
Housing Age Profile
When more than half a city's housing predates the 1986 federal ban on lead solder, plumbing-era lead risk becomes a citywide concern rather than an exception. Neilton's median build year of 1978 places it squarely in that category.
Over half of homes in Neilton were built before 1986, when lead solder was banned. Older plumbing may leach lead into drinking water, especially with corrosive water chemistry.
Source: U.S. Census Bureau ACS B25034.
Protecting Children from Lead in Neilton
Why children are most at risk: The CDC states there is no safe level of lead exposure for children. Children under 6 absorb lead more readily than adults, and even low levels can cause developmental delays, learning difficulties, and behavioral problems.
Even where utility-side monitoring meets Lead and Copper Rule requirements, the 83% pre-rule share in Neilton keeps interior-plumbing variation as a household-level question that aggregate data cannot resolve.
Sources: EPA Lead and Copper Rule, U.S. Census Bureau ACS, CDC childhood lead poisoning prevention guidelines.
Deep Dive Reports
Detailed analysis for Neilton, WA