Jeffrey City, WY: 1 Health Violation — 65/100 (2026)
1 ZIP code · 1 water system · Updated 2026-06-03
Across water systems in Jeffrey City, safety results are uneven — a portion carry active or recent violations, while others meet federal standards without incident, placing the city in the middle tier for WY.
How Jeffrey City Compares
Data: EPA SDWIS Last verified: 2026-06-03
What You Should Know About Jeffrey City Water
- Your city's water systems recorded 9 violations in the past 5 years.
- Average lead level: 0.001 mg/L.
- Homes built before 1986: 89% — older plumbing may contain lead solder.
- Estimated remediation: $1,500 per household.
- CDC health risk index: 13.62 — above typical levels.
Who Supplies Your Water in Jeffrey City
Most residential addresses in Jeffrey City, WY are served by a single water utility — the dominant system among the 1 provider tracked in federal data.
Overview
We track water quality and home safety data for 1 ZIP code in Jeffrey City, Wyoming, covering 1 community water system serving approximately 40 people.
1 of 1 ZIP code (100%) have recorded EPA violations. 1 health-based violation documented.
Home Safety Score
Average Home Safety Score for Jeffrey City: C (65/100)
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
Jeffrey City water systems draw from: Groundwater.
Lead & Copper
- Average lead level (90th percentile): 0.0010 mg/L (EPA action level: 0.015 mg/L)
- 0 ZIP codes exceed the EPA lead action level
Radon Risk
Dominant radon zone: Zone 1 (High Risk)
The EPA recommends testing homes in Zone 1 and Zone 2 areas for radon.
Top Contaminants
| Contaminant | Category | Violations | ZIPs Affected |
|---|---|---|---|
| Revised Total Coliform Rule | Microbiological | 6 | 1 |
| Stage 1 DBP Rule | Treatment Technique | 4 | 1 |
| Total Organic Carbon | Disinfection Byproducts | 2 | 1 |
| Radium-228 | Radionuclides | 2 | 1 |
| Consumer Confidence Report Rule | Reporting | 2 | 1 |
Areas with Most Violations
| ZIP Code | Safety Score | Violations | Health-Based | System |
|---|---|---|---|---|
| 82310 | C | 9 | 1 | Jeffrey City Water & Sewer District |
All ZIP Codes in Jeffrey City
- 82310 [C] — 9 violations ⚠
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 Jeffrey City
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
Top Contaminants in Jeffrey City Water
Based on EPA violation records. Check your ZIP code report for system-specific contaminant data.
Housing & Infrastructure in Jeffrey City
With 89% 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
Viewed through the lens of construction era, Jeffrey City is predominantly an older city — a median build year of 1963 puts most of the residential inventory in the range where pre-1986 plumbing materials were the standard.
Over half of homes in Jeffrey City 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.
Lead Exposure Risk for Children in Jeffrey City
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.
Pulling a tap sample fills the gap that utility data cannot close, particularly here where 89% of housing dates from the pre-rule era and citywide monitoring sits at or above the regulatory mark in Jeffrey City.
Sources: EPA Lead and Copper Rule, U.S. Census Bureau ACS, CDC childhood lead poisoning prevention guidelines.
What You Can Do in Jeffrey City
- 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. Filters rated for Revised Total Coliform Rule can reduce the most common contaminant found in Jeffrey City's water.
- Check your home's plumbing. With 89% of homes built before 1986, lead solder is a real possibility.
Deep Dive Reports
Detailed analysis for Jeffrey City, WY