Frenchtown, MT: High Radon Potential Area - Home Safety 67/100
1 ZIP code · 1 water system · Updated
ZipCheckup grade for Frenchtown: C.
A mixed picture - some signals here are worth your attention.
The C shown for Frenchtown, MT is an average of Home Safety Scores across the city's ZIP codes; that composite blends several data sources, so it can move for reasons unrelated to water, and it is not a measurement of what comes out of any tap in the city.
How Frenchtown Compares
Data: EPA SDWIS
What You Should Know About Frenchtown Water
- Average of reported 90th-percentile lead results: 0.001 mg/L.
- Homes built before 1986: 29% - older plumbing may contain lead solder.
- Health risk index (ZipCheckup composite of CDC data): 10.46.
Who Supplies Your Water in Frenchtown
One water system is listed below for Frenchtown, MT; federal data link 1 to the area overall.
- C
Overview
We track home safety data for 1 ZIP code in Frenchtown, Montana (population ~2,449), covering 1 community water system serving approximately 68,200 people region-wide. The EPA snapshots used for this build directly map water systems to 1 of 1 ZIP codes.
The available EPA record reports 0 violations for 1 ZIP code with a reported violation count.
Home Safety Score
Average Home Safety Score for Frenchtown: C (67/100)
Model 4.0.0 uses four measured components across three equally weighted domains. If a required domain is unavailable, no score is published:
| Factor | What It Measures |
|---|---|
| Water Quality | EPA violations and compliance history |
| PFAS MCL Screen | UCMR 5 testing against the covered federal MCLs |
| Radon Risk | EPA radon zone classification |
| Annual AQI | EPA AirData county-year median with at least 90 observed days |
Water Sources
Frenchtown water systems draw from: Groundwater.
Lead & Copper
- Average of reported 90th-percentile lead results: 0.0010 mg/L (EPA action level: 0.015 mg/L)
- 0 of 1 ZIP code with known status exceed the EPA lead action level
Radon Risk
1 of 1 ZIP records with known zones is in EPA Radon Zone 1.
The EPA recommends testing all homes regardless of radon zone. County radon zones cannot replace an in-home radon test.
Areas with No Violations
| ZIP Code | Safety Score | System | Population |
|---|---|---|---|
| 59834 | C | Missoula Water | 68,200 |
All ZIP Codes in Frenchtown
- 59834 [C]
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 Frenchtown
Source: CDC PLACES (County-level estimates). County health indicators are shown for context only and are not linked to this area's water records.
Compared to National Average
Vertical line = national average. ■ Above national · ■ Below national
Housing & Infrastructure in Frenchtown
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
Whether your home in Frenchtown was built before or after 1986 matters more than the citywide median of 1995, because the 1986 federal lead restrictions cover plumbing installed after that point.
Most homes in Frenchtown were built after 1986; lead exposure at a tap still depends on its service line and plumbing. Older homes should still be tested.
Source: U.S. Census Bureau ACS B25034.
Lead Exposure Risk for Children in Frenchtown
Why children are most at risk: The CDC states that no safe blood lead level in children has been identified. Children under 6 absorb lead more readily than adults, and even low levels can cause developmental delays, learning difficulties, and behavioral problems.
Averaged across Frenchtown ZIP codes, the 90th-percentile lead results reported by water systems come to less than 10 parts per billion. That is an area summary rather than a reading from any home, and EPA's health goal for lead in drinking water is zero; about 29% of local housing predates 1986.
Sources: EPA Lead and Copper Rule, U.S. Census Bureau ACS, CDC childhood lead poisoning prevention guidelines.
What You Can Do in Frenchtown
- Test your water at home. City-level data shows averages - your tap may differ. Check the certification, price and turnaround time of any water test kit or lab service.
- Install a certified water filter. Choose a pitcher or under-sink filter certified to reduce the specific contaminants of concern.
- Check your home's plumbing. Homes built before 1986 may have lead solder in pipes. A licensed plumber can assess your risk.
Deep Dive Reports
Detailed analysis for Frenchtown, MT