Is Missoula tap water safe to drink?

Yes with good quality

Missoula's tap water meets all EPA standards and scores well on our analysis. It is generally safe to drink though filtration can improve taste and provide extra precaution.

85/100
Purity Score
1
Issues Found
3.2 GPG
Hardness
Not detected
PFAS

1 Issue Detected in Missoula

Arsenic Approaching Limit (0.1 mg/L)

EPA limit is 0.010 mg/L.

Arsenic info for Missoula
Montana

598,015,980,259,803 · Rattlesnake Creek and Clark Fork River

Missoula Water Safety and Contaminant Report

Low Risk Updated March 2026 74,428 residents
See Best Filters for Missoula
85
Purity Score

Residents of Missoula draw from Rattlesnake Creek and Clark Fork River infrastructure managed by City of Missoula Water. This 2026 analysis evaluates safety, identifies any concerns, and recommends the best home filtration options.

Contaminant Levels

PFAS
ND
Lead
0.8 ppb
Nitrate
0.3 mg/L
Arsenic
0.1 mg/L
Hardness
3.2 gpg

Health Insights

  • 1
    Missoula's water meets current EPA standards. Filtration can improve taste and provide extra safety.

Score

85 /100
Excellent
"Good" threshold (70)

Missoula tap water is sourced from Rattlesnake Creek and Clark Fork River and treated by City of Missoula Water. Overall purity score: 85/100 (Excellent). Updated for 2026.

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Best filters matched to Missoula's 1 issue.

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Explore Missoula Water Data

Forever Chemicals in MissoulaPFAS water report
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Missoula Water FAQ

Is Missoula MT tap water safe to drink in 2026?
Missoula tap water meets EPA federal drinking water standards and scores 85/100 (Excellent) on PurityMap for 2026. For most healthy adults the water is considered safe but point-of-use filtration adds an important layer of protection.
Does Missoula MT use chlorine or chloramine for disinfection?
Missoula uses chlorine as the primary disinfectant with a residual level of 0.6 ppm. Standard activated carbon filters including pitcher filters are effective at removing free chlorine taste and odor.
How hard is Missoula MT water and what is the TDS level?
Missoula water hardness is 3.2 grains per gallon (soft) with a TDS of 95 ppm (good). This level is unlikely to cause significant scale buildup in household plumbing.
Has PFAS been found in Missoula MT drinking water?
Based on available EPA UCMR5 monitoring data as of 2026 PFAS have not been detected above EPA advisory levels in Missoula drinking water.
What is the best water filter for Missoula?
Based on Missoula's water profile, we recommend the Clearly Filtered Water Pitcher. Missoula water scores well overall. A pitcher filter provides extra precaution and improves taste for drinking and cooking.

Nearby Reports

BillingsMontana — 85/100Great FallsMontana — 85/100HelenaMontana — 85/100BozemanMontana — 85/100

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Data Sources

  • EPA SDWIS
  • EWG Tap Water Database
  • City of Missoula Water CCR
  • USGS monitoring data

PurityMap compiles public data. Updated March 2026.

© 2026 PurityMap. For informational purposes only.

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