Bozeman Tap Water Quality: Safety, Hardness & Lead - 2026

Is Bozeman Tap Water Safe to Drink?

Bozeman tap water meets EPA health standards, but the water utility has administrative compliance issues.

Lead — Lead (1.8 ppb) is at 12% of the EPA action level of 15 ppb.

The data below shows test results from 32 water utilities serving 69K people in the Bozeman area.

Based on publicly available data from EPA Water Quality Portal (Various). Water quality can vary by location, building plumbing, and over time. This assessment reflects compliance with federal EPA standards and is not medical advice.

Do I Need a Water Filter?

With hard water (135 ppm), a water softener can reduce scale buildup in pipes, appliances, and water heaters.

How Hard is Bozeman Water?

SoftVery Hard

060120180300+

135 ppm

7.9 grains per gallon

Hard

Hard water can cause scale buildup in pipes and appliances. A water softener may be beneficial.

Impact on Your Home

Shower

May dry out skin & hair

Kitchen

Spots on dishes

Laundry

Clothes may feel stiff

Appliances

Scale buildup

Regional Comparison

Bozeman

135

Montana

165

US Average

100

Values in ppm (mg/L as CaCO₃)

Do I Need a Water Softener?

At 135 ppm, Bozeman has hard water. You may notice white spots on dishes, dry skin after showering, and mineral buildup on fixtures. A water softener can help reduce these effects. Hard water is generally not a health concern according to the WHO.

Want to verify your home's exact hardness level? See our best water hardness test kits.

Based on 905 water samples from Gallatin County

Your pipes tell a different story

The data above shows what leaves the treatment plant—not what comes out of your faucet. Old pipes, lead solder, and building plumbing can add contaminants the city never tests for. Know exactly what's in your Bozeman tap water.

Test Your Water See top-rated kits →

Home test kits detect lead, bacteria, pesticides, and 100+ other contaminants. Results in 5-10 business days from certified labs.

Lead & Contaminants

Understanding lead levels and water quality violations in Bozeman

Lead Test Results

90th Percentile Lead Level

1.8 ppb

Below EPA Action Level

0EPA Limit (15)30+

Bozeman lead levels are well below the EPA action level.

Regular testing is still recommended, as lead can enter water through household plumbing.

Last sampled: 2026-12-31

About Lead in Drinking Water

What is Lead in Water?

According to the EPA, lead is a toxic metal that can dissolve into drinking water from older pipes, solder, and fixtures. It's invisible, tasteless, and odorless, making testing the only way to detect it. The EPA has set an action level of 15 ppb and states there is no safe level of lead exposure.

Potential Health Effects

Children

According to the CDC: developmental delays, learning difficulties, lower IQ, behavioral issues

Adults

According to the EPA: high blood pressure, kidney damage, reproductive issues

How to Reduce Exposure

•Run water for 30 seconds to 2 minutes before drinking, especially in the morning
•Use cold water for cooking and drinking (hot water dissolves more lead)
•Install a NSF-certified filter designed to remove lead
•Test your water, especially if your home was built before 1986

EPA Compliance History

Active Violations

Administrative issues pending

Current violations are administrative or monitoring-related. Water quality is not immediately affected, but stay informed about utility updates.

3-Year Violation Summary

Total Violations

Health-Related

Administrative

Active violations pending resolution

Health-Related Violations

Contaminant exceeded EPA maximum contaminant levels. The EPA recommends considering certified filtration.

Administrative Violations

Missed testing deadlines or reporting. Does not indicate water quality issues.

View Full EPA Compliance Report for Bozeman

Who Provides Bozeman's Water?

Utility Name

BOZEMAN CITY OF

EPA System ID (PWSID)

MT0000161

Primary Water Source

Groundwater

Population Served

69K

View Full EPA Report

Frequently Asked Questions

Common questions about Bozeman tap water quality

Based on available data, Bozeman tap water meets current EPA drinking water standards with minor compliance issues. While there may be some monitoring violations, there are no significant health-based concerns.

Bozeman has hard water with a hardness of 135 ppm (7.9 grains per gallon). Hard water can cause scale buildup in pipes and appliances. A water softener may be beneficial.

Lead levels (1.8 ppb) are below the EPA action level of 15 ppb.

Bozeman's tap water is provided by BOZEMAN CITY OF. The EPA system ID (PWSID) is MT0000161. The primary water source is Groundwater. You can find official water quality reports and contact information through your local utility.

With hard water (135 ppm), a water softener can reduce scale buildup in pipes, appliances, and water heaters.

Bozeman's water utility has had 25 violations in the past 3 years. Of these, 0 were health-based and 25 were monitoring/reporting related.

Bozeman's water utility uses chlorine or chloramine to disinfect the water supply. This is a standard practice required by the EPA to prevent waterborne illness. The taste is usually more noticeable in warm weather or near treatment facilities. To reduce chlorine taste, let water sit in an open pitcher for 30 minutes, use a refrigerator filter, or install a carbon filter on your tap.

Bozeman's tap water primarily comes from groundwater sources. The water undergoes treatment at local facilities before being distributed through the municipal water system. The water is provided by BOZEMAN CITY OF.

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