Hewitt, WI Water Safety: 53/100 (2026)
1 ZIP code · 1 water system · Updated 2026-06-03
Within Hewitt, water quality data indicates below-average safety by WI standards — independent testing is a reasonable precaution for residents whose systems show active violations.
How Hewitt Compares
Data: EPA SDWIS Last verified: 2026-06-03
Key Facts for Hewitt Residents
- Homes built before 1986: 51% — older plumbing may contain lead solder.
- Estimated remediation: $400 per household.
- CDC health risk index: 14.05 — above typical levels.
Hewitt's Water Providers
A single dominant system supplies most of Hewitt, WI. That utility controls infrastructure decisions, rate structures, and EPA compliance reporting for most residential addresses served across those 1 tracked system.
Overview
We track water quality and home safety data for 1 ZIP code in Hewitt, Wisconsin (population ~795), covering 1 community water system serving approximately 18,815 people region-wide.
No EPA violations recorded across any ZIP codes in Hewitt — an excellent indicator of water quality.
Home Safety Score
Average Home Safety Score for Hewitt: 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
Hewitt water systems draw from: Groundwater.
Lead & Copper
- Lead data: not yet available for Hewitt
- 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 |
|---|---|---|---|
| 54441 | D | MARSHFIELD UTILITIES | 18,815 |
All ZIP Codes in Hewitt
- 54441 [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.
Hewitt Community Health Snapshot
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
Hewitt Infrastructure Age
With 51% 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 a city's housing median build year is 1984, as in Hewitt, the implication for water quality research is straightforward: municipal-level data captures what leaves the treatment plant, but household plumbing from before 1986 determines what actually arrives at the tap. In cities where older housing predominates, that gap between system-level and household-level data is widest.
Over half of homes in Hewitt 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.
How Remediation Costs Compare in Hewitt
In Hewitt, property wealth outpaces what documented remediation typically demands — the equity burden lands well within the low tier.
Remediation costs in Hewitt are relatively low compared to home values. The $0–$800 estimated range is a small fraction of median property value. Home values are 11% below the Wisconsin average.
Hewitt: Lead Risk & Vulnerable Populations
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 51% pre-rule share in Hewitt 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.
What You Can Do in Hewitt
- 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 51% of homes built before 1986, lead solder is a real possibility.
- 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 Hewitt, WI