CITY REPORT MT

Butte, MT: 3 Violations - Home Safety 66/100

5 ZIP codes · 1 water system · Updated

ZipCheckup grade for Butte: C.

A mixed picture - some signals here are worth your attention.

Butte shows moderate tap water quality for MT - some areas carry documented EPA violations while others meet standards without issues.

How Butte Compares

Butte66/100
Montana avg65/100
National avg73/100

Data: EPA SDWIS

5
ZIP Codes
1
Water Systems
2
ZIPs with Violations
C · 66
Avg Safety Score
Zone 1
Radon Risk (High)
$488K
Median Home Value
$1,440
Est. Remediation (0.3% of home value)

Butte Water: The Quick Version

  • Your city's water systems recorded 3 violations in the past 5 years.
  • Average lead level: 0.002 mg/L.
  • Estimated remediation: $1,440 per household.
  • CDC health risk index: 12.65 - above typical levels.

Water Systems Serving Butte

As of current federal records, Butte, MT is served primarily by one water utility among 1 tracked system. That single provider handles infrastructure investment, rate adjustments, and regulatory reporting under EPA oversight.

Overview

We track home safety data for 5 ZIP codes in Butte, Montana, covering 1 community water system serving approximately 34,653 people. The EPA snapshots used for this build directly map water systems to 2 of 5 ZIP codes.

2 of 2 ZIP codes with a reported violation count in the available EPA record (100%) have recorded EPA violations. The available record reports no health-based violations for this measured scope.

Home Safety Score

Average Home Safety Score for Butte: C (66/100)

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

Butte water systems draw from: Surface water.

Lead & Copper

  • Average lead level (90th percentile): 0.0020 mg/L (EPA action level: 0.015 mg/L)
  • 0 of 2 ZIP codes with known status exceed the EPA lead action level

Radon Risk

Dominant radon zone: Zone 1 (High Risk)

  • Zone 1 (High): 5 ZIP codes
  • Zone 2 (Moderate): 0 ZIP codes
  • Zone 3 (Low): 0 ZIP codes

The EPA recommends testing homes in Zone 1 and Zone 2 areas for radon.

Top Contaminants

Contaminant Category Violations ZIPs Affected
Total Trihalomethanes (TTHM) Disinfection Byproducts 3 2
Haloacetic Acids (HAA5) Disinfection Byproducts 3 2
Surface Water Treatment Rule Treatment Technique 3 2

Areas with Most Violations

ZIP Code Safety Score Violations Health-Based System
59701 C 3 0 Butte Silverbow Water Department
59750 3 0 Butte Silverbow Water Department

All ZIP Codes in Butte

Data Sources

Reporting periods vary by source. Missing data is shown as unavailable, not as zero.

CDC Health Data for Butte

11.1%
Asthma (US: 9.8%)
10.2%
Diabetes (US: 10.4%)
18.5%
Poor Mental Health (US: 14.8%)

Source: CDC PLACES (County-level estimates). Water contamination can correlate with respiratory and chronic health conditions.

Compared to National Average

Asthma 11.1% ↑
Diabetes 10.2% ↓
Mental Health 18.5% ↑

Vertical line = national average. Above national · Below national

Key Contaminants Detected in Butte

Total Trihalomethanes (TTHM) 3 violations
Disinfection Byproducts · EPA limit: 0.08 mg/L
Increased cancer risk with long-term exposure
Haloacetic Acids (HAA5) 3 violations
Disinfection Byproducts · EPA limit: 0.06 mg/L
Increased cancer risk with long-term exposure
Surface Water Treatment Rule 3 violations
Treatment Technique
Pathogens may not be adequately removed

Based on EPA violation records. Check your ZIP code report for system-specific contaminant data.

Butte: Remediation Cost in Perspective

While no remediation project is entirely without cost, the relationship between estimated remediation and property values in Butte is notably favorable - the equity share is small enough that the household financial perspective is one of proportionality rather than pressure, and most homeowners can treat it as routine planning rather than a significant financial event.

Median Home Value
$487,500
Est. Remediation
$1,440
Remediation as % of home value 0.3%

Remediation costs in Butte are relatively low compared to home values. The $960–$1,860 estimated range is a small fraction of median property value. Home values are 65% above the Montana average.

Protecting Children from Lead in Butte

0.002
mg/L Avg Lead (Limit: 0.015)

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.

Lead risk in Butte appears low overall, but individual homes may differ. Testing is the only way to confirm your water's lead content.

Sources: EPA Lead and Copper Rule, U.S. Census Bureau ACS, CDC childhood lead poisoning prevention guidelines.

Historical Flood-Claim Evidence for Butte

9
Total FEMA Flood Claims
$1,649
Avg Reported Sum With Payment Data
100%
A/V Share of Claim-Record ZIPs

Historical NFIP data for Butte contains 9 flood insurance claims. Among claims with payment data, the average reported building, contents, and ICC component sum is $1,649. Among ZIP codes with claim records, 100% have an A- or V-family dominant rated zone recorded in those historical claims. This is not a complete current FEMA property-map inventory.

How flooding affects water quality: Flood events can introduce sewage, agricultural runoff, and industrial chemicals into water supplies. Even after floodwaters recede, contamination can persist in wells and aging infrastructure. The <strong>$1,440</strong> remediation estimate shown here excludes flood insurance and is not derived from NFIP claim count.

Claim count does not establish current property risk. Check the exact address in FEMA's current map and obtain a property-specific insurance quote when relevant.

Source: historical FEMA National Flood Insurance Program (NFIP) claim records. No current FEMA property-map designation is asserted.

What You Can Do in Butte

  1. 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.
  2. Install a certified water filter. Filters rated for Total Trihalomethanes (TTHM) can reduce the most common contaminant found in Butte's water.
  3. Check your home's plumbing. Homes built before 1986 may have lead solder in pipes. A licensed plumber can assess your risk.

Frequently Asked Questions

What does the Home Safety Score mean for Butte, MT?
Butte has an average Home Safety Score of 66/100 (Grade C) under model 4.0.0. The score combines EPA SDWIS identity plus accepted ECHO SDWA lifecycle-based water compliance, the PFAS MCL screen, EPA radon zone, and annual EPA AQI, and is published only when all required domains are observed. 3 EPA violations have been recorded. Check individual ZIP code reports for component details.
How many water violations does Butte have?
Butte water systems have a total of 3 EPA violations. Violations are tracked across 5 ZIP codes.
Does Butte water have lead?
The average 90th-percentile lead level in Butte is 0.002 mg/L. This is below the EPA action level of 0.015 mg/L. Lead levels can vary by home - testing is recommended especially in older properties.
How does Butte compare to Montana average?
Butte has an average Home Safety Score of 66/100, which is above the Montana state average of 65/100 for the same model series.
How many water systems serve Butte?
Butte is served by 1 public water system across 5 ZIP codes, serving approximately 34,653 people.
How much does it cost to fix water issues in Butte?
Estimated remediation costs in Butte average $1,440 per household, ranging from $960 to $1,860. Costs include filtration, pipe replacement, radon mitigation, and flood protection.
HomeCitiesMontana → Butte, MT

How to cite this page

APA ZipCheckup. (2026). Butte, MT: 3 Violations - Home Safety 66/100. https://zipcheckup.com/cities/mt/butte/
BibTeX
@misc{zipcheckup-cities-mt-butte,
  author = {{ZipCheckup}},
  title  = {{Butte, MT: 3 Violations - Home Safety 66/100}},
  year   = {2026},
  url    = {https://zipcheckup.com/cities/mt/butte/}
}

Page version: August 2026.

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