Boulder Junction, WI Water Safety: 53/100 (2026)
1 ZIP code · 1 water system · Updated 2026-06-03
For households across Boulder Junction, below-average water safety data and recurring compliance violations documented by WI EPA records make it worthwhile to verify the specific system serving your address — system-level detail is the most actionable reference point available.
How Boulder Junction Compares
Data: EPA SDWIS Last verified: 2026-06-03
What You Should Know About Boulder Junction Water
- Homes built before 1986: 59% — older plumbing may contain lead solder.
- Estimated remediation: $400 per household.
- CDC health risk index: 15.02 — above typical levels.
Who Supplies Your Water in Boulder Junction
Federal records list 1 water system serving Boulder Junction, WI. One provider accounts for the large majority of residential water connections in the area, concentrating infrastructure and compliance accountability.
Overview
We track water quality and home safety data for 1 ZIP code in Boulder Junction, Wisconsin, covering 1 community water system serving approximately 1,466 people.
No EPA violations recorded across any ZIP codes in Boulder Junction — an excellent indicator of water quality.
Home Safety Score
Average Home Safety Score for Boulder Junction: 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
Boulder Junction water systems draw from: Groundwater.
Lead & Copper
- Lead data: not yet available for Boulder Junction
- 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 |
|---|---|---|---|
| 54512 | D | LAND O LAKES SANITARY DIST | 450 |
All ZIP Codes in Boulder Junction
- 54512 [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.
Health Outcomes in Boulder Junction
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
Housing & Infrastructure in Boulder Junction
With 59% 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
The median home in Boulder Junction was built in 1970 — a figure that places most of the city's residential stock in the era when lead solder was still standard in copper plumbing. Homes built before 1986 may have lead-soldered joints; those built before 1970 face the additional possibility of lead pipes in the service line itself.
Over half of homes in Boulder Junction 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.
Cost Context: What Remediation Means for Boulder Junction Homeowners
For most homeowners in Boulder Junction, the estimated cost of water and safety remediation represents a proportionally modest share of what properties are worth — placing this area in the lower tier of the remediation share scale.
Remediation costs in Boulder Junction are relatively low compared to home values. The $0–$800 estimated range is a small fraction of median property value. Home values are 22% above the Wisconsin average.
Lead Exposure Risk for Children in Boulder Junction
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.
Older interior plumbing shapes the local picture: 59% of Boulder Junction homes predate the federal solder ban, and aggregate sampling either approaches or crosses the action benchmark. That mix makes a single-home draw a standard pre-purchase or pre-occupancy step.
Sources: EPA Lead and Copper Rule, U.S. Census Bureau ACS, CDC childhood lead poisoning prevention guidelines.
What You Can Do in Boulder Junction
- 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 59% 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 Boulder Junction, WI