Ephraim, WI: High Radon Potential Area - Home Safety Score unavailable
1 ZIP code · 1 water system · Updated
Data: EPA SDWIS
Key Facts for Ephraim Residents
- Average of reported 90th-percentile lead results: 0.0061 mg/L.
- Homes built before 1986: 82% - older plumbing may contain lead solder.
- Health risk index (ZipCheckup composite of CDC data): 14.01.
Ephraim's Water Providers
One water system is listed below for Ephraim, WI; federal data link 1 to the area overall.
Overview
We track home safety data for 1 ZIP code in Ephraim, Wisconsin (population ~341), covering 1 community water system serving approximately 1,000 people region-wide. The EPA snapshots used for this build directly map water systems to 1 of 1 ZIP codes.
The available EPA record reports 0 violations for 1 ZIP code with a reported violation count.
Water Sources
Ephraim water systems draw from: Groundwater.
Lead & Copper
- Average of reported 90th-percentile lead results: 0.0061 mg/L (EPA action level: 0.015 mg/L)
- 0 of 1 ZIP code with known status exceed the EPA lead action level
Radon Risk
1 of 1 ZIP records with known zones is in EPA Radon Zone 1.
The EPA recommends testing all homes regardless of radon zone. County radon zones cannot replace an in-home radon test.
Areas with No Violations
| ZIP Code | Safety Score | System | Population |
|---|---|---|---|
| 54211 | — | Sister Bay Waterworks | 1,000 |
All ZIP Codes in Ephraim
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
Reporting periods vary by source. Missing data is shown as unavailable, not as zero.
Ephraim Community Health Snapshot
Source: CDC PLACES (County-level estimates). County health indicators are shown for context only and are not linked to this area's water records.
Compared to National Average
Vertical line = national average. ■ Above national · ■ Below national
Ephraim Infrastructure Age
With 82% of homes built before 1986, lead solder in plumbing is a potential concern. Federal law banned lead solder in drinking-water plumbing in 1986, but many older homes retain original plumbing.
Source: U.S. Census Bureau American Community Survey (ACS).
Housing Age Profile
Median construction year in Ephraim: 1953, set against the 1986 federal lead limits for new plumbing.
Over half of homes in Ephraim were built before 1986, when federal law began restricting lead solder in drinking-water plumbing. Older plumbing may leach lead into drinking water, especially with corrosive water chemistry.
Source: U.S. Census Bureau ACS B25034.
Ephraim: Lead Risk & Vulnerable Populations
Why children are most at risk: The CDC states that no safe blood lead level in children has been identified. Children under 6 absorb lead more readily than adults, and even low levels can cause developmental delays, learning difficulties, and behavioral problems.
If you have young children or are pregnant, consider testing your home's water - especially if your home was built before 1986.
Sources: EPA Lead and Copper Rule, U.S. Census Bureau ACS, CDC childhood lead poisoning prevention guidelines.
Deep Dive Reports
Detailed analysis for Ephraim, WI