Waltham, MN: High Radon Risk - Home Safety Score unavailable
1 ZIP code · 0 water systems · Updated
Data: EPA SDWIS
What You Should Know About Waltham Water
- Homes built before 1986: 89% - older plumbing may contain lead solder.
- Estimated remediation: $1,200 per household.
- CDC health risk index: 13.21 - above typical levels.
Overview
We track home safety data for 1 ZIP code in Waltham, Minnesota, covering 0 community water system serving approximately 523 people. The EPA snapshots used for this build directly map water systems to 0 of 1 ZIP codes.
EPA water-system violation data is unavailable in the dataset used for this page for the tracked ZIP codes in Waltham.
Lead & Copper
- Lead data: not yet available for Waltham
- Lead action-level status: not available
Radon Risk
Dominant radon zone: Zone 1 (High Risk)
The EPA recommends testing homes in Zone 1 and Zone 2 areas for radon.
All ZIP Codes in Waltham
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
Reporting periods vary by source. Missing data is shown as unavailable, not as zero.
Health Outcomes in Waltham
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 Waltham
With 89% 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 more than half a city's housing predates the 1986 federal ban on lead solder, plumbing-era lead risk becomes a citywide concern rather than an exception. Waltham's median build year of 1957 places it squarely in that category.
Over half of homes in Waltham 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 Waltham Homeowners
Because property values in Waltham comfortably exceed estimated remediation costs, the equity impact here is proportionally small.
Remediation costs in Waltham are relatively low compared to home values. The $800–$1,500 estimated range is a small fraction of median property value. Home values are 11% above the Minnesota average.
Lead Exposure Risk for Children in Waltham
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 89% pre-rule share in Waltham 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.
Deep Dive Reports
Detailed analysis for Waltham, MN