Mount Horeb, WI: High Radon Risk - Home Safety 67/100
1 ZIP code · 2 water systems · Updated
ZipCheckup grade for Mount Horeb: C.
A mixed picture - some signals here are worth your attention.
Compared to top-scoring cities in WI, Mount Horeb lands in the middle tier - some water systems meet standards cleanly, others carry documented violations, and performance can vary significantly across service areas.
How Mount Horeb Compares
Data: EPA SDWIS
Mount Horeb Water: The Quick Version
- Average lead level: 0.003 mg/L.
- Homes built before 1986: 47% - older plumbing may contain lead solder.
- Estimated remediation: $2,900 per household.
- CDC health risk index: 10.18.
Water Systems Serving Mount Horeb
Multiple utilities divide Mount Horeb, WI's water service - 2 leading providers among 2 on the federal register.
- C
- C
Overview
We track home safety data for 1 ZIP code in Mount Horeb, Wisconsin, covering 2 community water systems serving approximately 10,441 people. 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.
Home Safety Score
Average Home Safety Score for Mount Horeb: C (67/100)
Model 4.0.0 uses four measured components across three equally weighted domains. If a required domain is unavailable, no score is published:
| Factor | What It Measures |
|---|---|
| Water Quality | EPA violations and compliance history |
| PFAS MCL Screen | UCMR 5 testing against the covered federal MCLs |
| Radon Risk | EPA radon zone classification |
| Annual AQI | EPA AirData county-year median with at least 90 observed days |
Water Sources
Mount Horeb water systems draw from: Groundwater.
Lead & Copper
- Average lead level (90th percentile): 0.0030 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
Dominant radon zone: Zone 1 (High 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 |
|---|---|---|---|
| 53572 | C | Mt Horeb Waterworks | 7,756 |
All ZIP Codes in Mount Horeb
- 53572 [C]
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.
CDC Health Data for Mount Horeb
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
How Old Is Mount Horeb's Housing Stock?
With 47% 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
Because Mount Horeb's housing stock spans a wide range of construction eras, the median build year of 1981 lands in a zone where two distinct risk populations share the same residential market. Homes built before 1986 may have lead-soldered copper plumbing joints - that practice was federally prohibited in 1986 but remained standard until then. The fraction built before 1970 face an additional risk: lead pipes used for service line connections were common before that decade, meaning both the pipe and the solder may be lead-containing in the oldest structures. Residents in mid-century or earlier homes face a different risk environment than neighbors in houses built after 1986, even if they drink from the same utility's supply - and that property-level divergence is what makes the age distribution above more diagnostic than the city-wide median alone.
Most homes in Mount Horeb were built after 1986, reducing the risk of lead contamination from plumbing. Older homes should still be tested.
Source: U.S. Census Bureau ACS B25034.
Mount Horeb: Remediation Cost in Perspective
At current valuations, Mount Horeb sits in the low remediation-share tier - the equity impact of fixing documented issues is proportionally minor.
Remediation costs in Mount Horeb are relatively low compared to home values. The $1,900–$4,100 estimated range is a small fraction of median property value. Home values are 65% above the Wisconsin average.
Protecting Children from Lead in Mount Horeb
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.
Confirming what arrives at a specific faucet is something utility-side averages cannot do. With 47% of Mount Horeb stock built before the lead-solder ban and citywide monitoring at or beyond the regulatory mark, a tap-level kit fits the standard diligence picture.
Sources: EPA Lead and Copper Rule, U.S. Census Bureau ACS, CDC childhood lead poisoning prevention guidelines.
Historical Flood-Claim Evidence for Mount Horeb
Historical NFIP data for Mount Horeb contains 1 flood insurance claim. Among claims with payment data, the average reported building, contents, and ICC component sum is $5,598. Among ZIP codes with claim records, 100% have an A- or V-family dominant rated zone recorded in those historical claims. This is not a complete current FEMA property-map inventory.
How flooding affects water quality: Flood events can introduce sewage, agricultural runoff, and industrial chemicals into water supplies. Even after floodwaters recede, contamination can persist in wells and aging infrastructure. The <strong>$2,900</strong> remediation estimate shown here excludes flood insurance and is not derived from NFIP claim count.
Claim count does not establish current property risk. Check the exact address in FEMA's current map and obtain a property-specific insurance quote when relevant.
Source: historical FEMA National Flood Insurance Program (NFIP) claim records. No current FEMA property-map designation is asserted.
What You Can Do in Mount Horeb
- 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. With 47% of homes built before 1986, lead solder is a real possibility.
Deep Dive Reports
Detailed analysis for Mount Horeb, WI