Long Lake, WI Water Safety: 53/100 (2026)
1 ZIP code · 1 water system · Updated 2026-06-03
Water monitoring data from Long Lake, WI tells a below-average story — health violations are present and system-level detail is worth reviewing before drawing conclusions.
How Long Lake Compares
Data: EPA SDWIS Last verified: 2026-06-03
Long Lake Water: The Quick Version
- Homes built before 1986: 53% — older plumbing may contain lead solder.
- Estimated remediation: $400 per household.
- CDC health risk index: 14.86 — above typical levels.
Water Systems Serving Long Lake
A single dominant system supplies most of Long Lake, 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 Long Lake, Wisconsin (population ~615), covering 1 community water system serving approximately 1,250 people region-wide.
No EPA violations recorded across any ZIP codes in Long Lake — an excellent indicator of water quality.
Home Safety Score
Average Home Safety Score for Long Lake: 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
Long Lake water systems draw from: Groundwater.
Lead & Copper
- Lead data: not yet available for Long Lake
- 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 |
|---|---|---|---|
| 54542 | D | FLORENCE UTILITY COMMISSION | 1,250 |
All ZIP Codes in Long Lake
- 54542 [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.
CDC Health Data for Long Lake
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 Long Lake's Housing Stock?
With 53% 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 the majority of Long Lake's housing predates 1986, when lead solder was banned from new plumbing, the median build year of 1986 reflects a city where lead-era plumbing materials are common rather than exceptional.
Over half of homes in Long Lake 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.
Long Lake: Remediation Cost in Perspective
In Long Lake, the equity impact of remediation is proportionally small — not the kind of financial commitment that rises to the level of a genuine planning constraint, but a minor share of what most properties here are worth.
Remediation costs in Long Lake are relatively low compared to home values. The $0–$800 estimated range is a small fraction of median property value. Home values are 32% below the Wisconsin average.
Protecting Children from Lead in Long Lake
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.
When older housing represents 53% of the local inventory or aggregate readings approach the federal action level, an in-home check becomes the standard way to translate citywide averages into the specific reality of an individual Long Lake address.
Sources: EPA Lead and Copper Rule, U.S. Census Bureau ACS, CDC childhood lead poisoning prevention guidelines.
What You Can Do in Long Lake
- 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 53% 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 Long Lake, WI