Friesland, WI: 3 Violations — 82/100 (2026)
1 ZIP code · 1 water system · Updated 2026-06-03
Within Friesland, safety indicators for tap water remain above the WI median — documented violations are infrequent and the city's compliance record sits in the upper tier.
How Friesland Compares
Data: EPA SDWIS Last verified: 2026-06-03
Key Facts for Friesland Residents
- Your city's water systems recorded 3 violations in the past 5 years.
- Average lead level: 0.0008 mg/L.
- Homes built before 1986: 79% — older plumbing may contain lead solder.
- Estimated remediation: $400 per household.
- CDC health risk index: 12.72 — above typical levels.
Friesland's Water Providers
Friesland, WI draws its water from one primary utility across 1 tracked system.
Overview
We track water quality and home safety data for 1 ZIP code in Friesland, Wisconsin, covering 1 community water system serving approximately 269 people.
1 of 1 ZIP code (100%) have recorded EPA violations. All violations are monitoring/reporting type.
Home Safety Score
Average Home Safety Score for Friesland: B (82/100)
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
Friesland water systems draw from: Groundwater.
Lead & Copper
- Average lead level (90th percentile): 0.0008 mg/L (EPA action level: 0.015 mg/L)
- 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.
Top Contaminants
| Contaminant | Category | Violations | ZIPs Affected |
|---|---|---|---|
| Stage 1 DBP Rule | Treatment Technique | 2 | 1 |
| Lead and Copper Rule | Treatment Technique | 2 | 1 |
| Contaminant 0700 | Other | 2 | 1 |
Areas with Most Violations
| ZIP Code | Safety Score | Violations | Health-Based | System |
|---|---|---|---|---|
| 53935 | B | 3 | 0 | Friesland Waterworks |
All ZIP Codes in Friesland
- 53935 [B] — 3 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.
Friesland 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
What's in Friesland's Water?
Based on EPA violation records. Check your ZIP code report for system-specific contaminant data.
Friesland Infrastructure Age
With 79% 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, Friesland is predominantly an older city — a median build year of 1945 puts most of the residential inventory in the range where pre-1986 plumbing materials were the standard.
Over half of homes in Friesland 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 Friesland
Property equity in Friesland runs well ahead of estimated remediation costs — a cost-to-value ratio that sits in the low tier, meaning documented water and safety issues here are the kind homeowners can plan to address without treating the expense as a significant budget event relative to what their homes are worth.
Remediation costs in Friesland are relatively low compared to home values. The $0–$800 estimated range is a small fraction of median property value. Home values are 36% below the Wisconsin average.
Friesland: 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.
Practically, the structural drivers in Friesland — 79% pre-rule stock and citywide monitoring at or beyond the regulatory benchmark — make an in-home draw the practical way to translate aggregate averages into the specific conditions at one address.
Sources: EPA Lead and Copper Rule, U.S. Census Bureau ACS, CDC childhood lead poisoning prevention guidelines.
Deep Dive Reports
Detailed analysis for Friesland, WI