Marshfield, WI: Lead Above EPA Limits — 36/100 (2026)
3 ZIP codes · 6 water systems · Updated 2026-06-03
Water systems serving Marshfield record elevated violation rates against WI benchmarks — residents in affected areas may want to check their local system's current compliance status.
How Marshfield Compares
Data: EPA SDWIS Last verified: 2026-06-03
Marshfield Water: The Quick Version
- Your city's water systems recorded 24 violations in the past 5 years.
- Average lead level: 0.027 mg/L — exceeds the EPA action level of 0.015 mg/L.
- Estimated remediation: $2,640 per household.
- CDC health risk index: 14.05 — above typical levels.
Water Systems Serving Marshfield
Federal records list 6 water systems tied to Marshfield, WI. Of those, 3 are the primary providers, meaning service conditions, rate structures, and compliance histories can differ depending on where a property sits.
Overview
We track water quality and home safety data for 3 ZIP codes in Marshfield, Wisconsin, covering 6 community water systems serving approximately 26,368 people.
3 of 3 ZIP codes (100%) have recorded EPA violations. 3 health-based violations documented.
Home Safety Score
Average Home Safety Score for Marshfield: F (36/100)
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
Marshfield water systems draw from: Groundwater.
Lead & Copper
- Average lead level (90th percentile): 0.0270 mg/L (exceeds EPA action level) (EPA action level: 0.015 mg/L)
- 3 ZIP codes exceed the EPA lead action level
Radon Risk
Dominant radon zone: Zone 1 (High Risk)
- Zone 1 (High): 3 ZIP codes
- Zone 2 (Moderate): 0 ZIP codes
- Zone 3 (Low): 0 ZIP codes
The EPA recommends testing homes in Zone 1 and Zone 2 areas for radon.
Top Contaminants
| Contaminant | Category | Violations | ZIPs Affected |
|---|---|---|---|
| Stage 1 DBP Rule | Treatment Technique | 12 | 3 |
| Consumer Confidence Report Rule | Reporting | 8 | 3 |
| Contaminant 0700 | Other | 8 | 3 |
| Stage 2 DBP Rule | Treatment Technique | 4 | 3 |
Areas with Most Violations
| ZIP Code | Safety Score | Violations | Health-Based | System |
|---|---|---|---|---|
| 54404 | F | 8 | 1 | Marshfield Utilities |
| 54449 | D | 8 | 1 | Marshfield Utilities |
| 54472 | F | 8 | 1 | Marshfield Utilities |
All ZIP Codes in Marshfield
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 Marshfield
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 Marshfield
Based on EPA violation records. Check your ZIP code report for system-specific contaminant data.
Marshfield: Remediation Cost in Perspective
Remediation costs in Marshfield represent a moderate share of typical home values — worth budgeting for carefully, though within reach for most homeowners who plan ahead.
Remediation costs are moderate relative to home values in Marshfield. The estimated $1,443–$4,053 range is manageable for most homeowners but still worth budgeting for. Home values are 16% below the Wisconsin average.
Protecting Children from Lead in Marshfield
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.
If you have young children or are pregnant, consider testing your home's water — especially if your home was built before 1986.
<strong>3 ZIP codes</strong> (100% of the city) exceed the EPA lead action level of 0.015 mg/L.
Sources: EPA Lead and Copper Rule, U.S. Census Bureau ACS, CDC childhood lead poisoning prevention guidelines.
Climate-Related Water Risk for Marshfield
How does Marshfield's flood record connect to local water quality? The NFIP documents 3 claims — enough to signal recurring events — and 33% of ZIP codes carry FEMA flood zone status. That combination places flooding in the category of factors that can periodically affect water infrastructure, even if the area isn't among the highest-exposure communities in the NFIP dataset.
Marshfield has a moderate flood history with 3 FEMA claims averaging $3,137 per payout. 33% of ZIP codes fall within FEMA flood zones. Flood events can contaminate drinking water and overwhelm treatment systems.
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. Flood damage can add significantly to the estimated <strong>$2,640</strong> remediation cost per household.
Residents in flood-prone areas should consider flood insurance even outside FEMA zones — over 25% of flood claims come from low-to-moderate risk areas. After any flood event, test your water before drinking.
Source: FEMA National Flood Insurance Program (NFIP) claims data, FEMA flood zone designations.
What You Can Do in Marshfield
- Test your water at home. City-level data shows averages — your tap may differ. Lead testing is especially recommended given the area's lead levels.
- Install a certified water filter. Filters rated for Stage 1 DBP Rule can reduce the most common contaminant found in Marshfield's water.
- Check your home's plumbing. Homes built before 1986 may have lead solder in pipes. A licensed plumber can assess your risk.
- 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 Marshfield, WI