Is Duluth tap water safe to drink?

Yes with good quality

Duluth'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
0.8 GPG
Hardness
Not detected
PFAS

1 Issue Detected in Duluth

Arsenic Approaching Limit (0.1 mg/L)

EPA limit is 0.010 mg/L.

Arsenic info for Duluth
Minnesota

558,015,580,255,803 · Lake Superior

Duluth Water Quality Report (2026)

Low Risk Updated March 2026 89,337 residents
See Best Filters for Duluth
85
Purity Score

Residents of Duluth draw from Lake Superior infrastructure managed by City of Duluth Water and Gas. This 2026 analysis evaluates safety, identifies any concerns, and recommends the best home filtration options.

Contaminant Levels

PFAS
ND
Lead
1.2 ppb
Nitrate
0.2 mg/L
Arsenic
0.1 mg/L
Hardness
0.8 gpg

Health Insights

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

Score

85 /100
Excellent
"Good" threshold (70)

Duluth tap water is sourced from Lake Superior and treated by City of Duluth Water and Gas. Overall purity score: 85/100 (Excellent). Updated for 2026.

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Best filters matched to Duluth's 1 issue.

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Duluth Water FAQ

Is Duluth MN tap water safe to drink in 2026?
Duluth 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 Duluth MN use chlorine or chloramine for disinfection?
Duluth uses chloramine as the primary disinfectant with a residual level of 1.0 ppm. Chloramine is harder to remove than free chlorine and requires a catalytic carbon or reverse osmosis filter. Standard Brita-style pitchers will NOT remove chloramine.
How hard is Duluth MN water and what is the TDS level?
Duluth water hardness is 0.8 grains per gallon (soft) with a TDS of 25 ppm (excellent). This level is unlikely to cause significant scale buildup in household plumbing.
Has PFAS been found in Duluth MN drinking water?
Based on available EPA UCMR5 monitoring data as of 2026 PFAS have not been detected above EPA advisory levels in Duluth drinking water.
What is the best water filter for Duluth?
Based on Duluth's water profile, we recommend the Clearly Filtered Water Pitcher. Duluth water scores well overall. A pitcher filter provides extra precaution and improves taste for drinking and cooking.

Nearby Reports

RochesterMinnesota — 73/100PlymouthMinnesota — 73/100MinneapolisMinnesota — 79/100Saint PaulMinnesota — 79/100BloomingtonMinnesota — 79/100Brooklyn ParkMinnesota — 79/100

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Data Sources

  • EPA SDWIS
  • EWG Tap Water Database
  • City of Duluth Water and Gas CCR
  • USGS monitoring data

PurityMap compiles public data. Updated March 2026.

© 2026 PurityMap. For informational purposes only.

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