Is Flagstaff tap water safe to drink?

Yes with good quality

Flagstaff'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
5.6 GPG
Hardness
Not detected
PFAS

1 Issue Detected in Flagstaff

Arsenic Approaching Limit (0.3 mg/L)

EPA limit is 0.010 mg/L.

Arsenic info for Flagstaff
Arizona

860,018,600,486,011 · Groundwater and surface water

Flagstaff, AZ Water Quality Report

Low Risk Updated March 2026 75,038 residents
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85
Purity Score

Contaminant Levels

PFAS
ND
Lead
1.2 ppb
Nitrate
0.4 mg/L
Arsenic
0.3 mg/L
Hardness
5.6 gpg

Health Insights

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

Score

85 /100
Excellent
"Good" threshold (70)

Flagstaff tap water is sourced from Groundwater and surface water and treated by City of Flagstaff Water Services. Overall purity score: 85/100 (Excellent). Updated for 2026.

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Flagstaff Water FAQ

Is Flagstaff AZ tap water safe to drink in 2026?
Flagstaff 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 Flagstaff AZ use chlorine or chloramine for disinfection?
Flagstaff uses chlorine as the primary disinfectant with a residual level of 1.0 ppm. Standard activated carbon filters including pitcher filters are effective at removing free chlorine taste and odor.
How hard is Flagstaff AZ water and what is the TDS level?
Flagstaff water hardness is 5.6 grains per gallon (moderate) with a TDS of 210 ppm (fair). This level is unlikely to cause significant scale buildup in household plumbing.
Has PFAS been found in Flagstaff AZ drinking water?
Based on available EPA UCMR5 monitoring data as of 2026 PFAS have not been detected above EPA advisory levels in Flagstaff drinking water.
What is the best water filter for Flagstaff?
Based on Flagstaff's water profile, we recommend the Clearly Filtered Water Pitcher. Flagstaff water scores well overall. A pitcher filter provides extra precaution and improves taste for drinking and cooking.

Nearby Reports

GlendaleArizona — 73/100PhoenixArizona — 73/100MesaArizona — 73/100YumaArizona — 73/100PeoriaArizona — 73/100SurpriseArizona — 73/100

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Data Sources

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

PurityMap compiles public data. Updated March 2026.

© 2026 PurityMap. For informational purposes only.

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