Big Arm, MT: High Radon Risk - Home Safety Score unavailable
1 ZIP code · 0 water systems · Updated
Data: EPA SDWIS
Big Arm Water: The Quick Version
- Homes built before 1986: 29% - older plumbing may contain lead solder.
- Estimated remediation: $1,200 per household.
- CDC health risk index: 14.03 - above typical levels.
Overview
We track home safety data for 1 ZIP code in Big Arm, Montana, covering 0 community water system serving approximately 605 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 Big Arm.
Lead & Copper
- Lead data: not yet available for Big Arm
- 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 Big Arm
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.
CDC Health Data for Big Arm
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 Big Arm's Housing Stock?
Housing age data helps assess potential lead pipe and infrastructure risks. Newer housing stock generally means lower plumbing-related contamination risk.
Source: U.S. Census Bureau American Community Survey (ACS).
Housing Age Profile
Congress banned lead solder in residential plumbing in 1986, drawing a clear line in housing risk by era. Big Arm's median build year of 1995 puts most of its residential stock on the newer side of that boundary - a profile that generally correlates with lower plumbing-sourced lead exposure across the city.
Most homes in Big Arm were built after 1986, reducing the risk of lead contamination from plumbing. Older homes should still be tested.
Source: U.S. Census Bureau ACS B25034.
Big Arm: Remediation Cost in Perspective
Because property values in Big Arm comfortably exceed estimated remediation costs, the equity impact here is proportionally small.
Remediation costs in Big Arm are relatively low compared to home values. The $800–$1,500 estimated range is a small fraction of median property value. Home values are 105% above the Montana average.
Protecting Children from Lead in Big Arm
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.
29% of housing in Big Arm predates the federal action against lead solder - a contained share - and aggregate readings stay beneath the regulatory benchmark. Lead therefore sits in a quiet position on the local water-quality picture, with single-home draws as the standard tool for confirming any 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 Big Arm, MT