Duluthlikely match
City water report · 2026

Is Duluth Tap Water Safe? 2026 Water Quality Report

Short answer: No measured result is above a legal limit. Duluth serves 86,859 residents.

Likely match, check your bill

Duluth serves Duluth

Your water bill or annual water quality report names your actual supplier.

Source
Surface water
Lead service lines
5,382 lead, 251 galvanized, 2,609 unknown
  • DuluthThis report
    MN1690011 · 86,859 served

Your water utility

City of Duluth: contact and record

Every detected result

One detected result

Duluth (EPA PWSID MN1690011) delivers surface water to 86,859 residents. This report reflects 29 individual PFAS result(s) from the source UCMR5 observations and the latest Lead & Copper Rule 90th-percentile result. Water hardness and disinfectant type are pending the utility's own annual report.

  • Lead (90th percentile)EPA SDWIS (Lead & Copper Rule) · 2023
    15 µg/L federal action level
    8µg/L
    Within reference
30 other contaminants tested, none detected
  • 11Cl-PF3OUdS
  • 4:2 FTS
  • 6:2 FTS
  • 8:2 FTS
  • 9Cl-PF3ONS
  • ADONA
  • HFPO-DA (GenX)
  • NEtFOSAA
  • NFDHA
  • NMeFOSAA
  • PFBA
  • PFBS
  • PFDA
  • PFDoA
  • PFEESA
  • PFHpA
  • PFHpS
  • PFHxA
  • PFHxS
  • PFMBA
  • PFMPA
  • PFNA
  • PFOA
  • PFOS
  • PFPeA
  • PFPeS
  • PFTA
  • PFTrDA
  • PFUnA
  • Lithium

Coverage by group

31 results on record
  • PFAS (forever chemicals)29 not detected
  • Metals & lead1 detected
  • Disinfection by-productsNot monitored
  • Other1 not detected
Track record

1health-based violation in the last 10 years

From EPA SDWIS. Counted once per contaminant per year, as in the Track record score.

Not in this recordDisinfection by-products weren't monitored in this dataset

No result is not a pass. Your utility's annual water quality report may list them, and a certified lab test covers your own tap.

Health-based violations, last 10 years

Every filing is listed; the Track record score counts at most one per contaminant per year.

Filings 2008–2017
  • Interim Enhanced Surface Water Treatment Rule

Resolved

  1. Interim Enhanced Surface Water Treatment RuleTT

    to Resolved

    EPA status: ResolvedSDWIS ID 54749

Test your own tap

Screening tells you if something is worth a closer look; a lab result is the number you can act on.

As an Amazon Associate, PurityMap earns from qualifying purchases. Affiliate disclosure.

  • Screening: quick check, not lab-grade

    Safe Home DIY Lead in Drinking Water Combo Test Kit

    Safe Home (EnviroTestKits)

    Lead, read as one of three ranges: 0–4, 5–15 or 15+ ppb

    • Turnaround: 5 minutes

    What it can't tell you: It shows a lead range, not an exact level, and tests nothing else unless you pay extra for the optional lab test.

  • Lab-certified results

    ETR Labs Basic Water Quality Test Kit

    ETR Laboratories

    50+ substances, including lead, copper, arsenic, nitrate, hardness and coliform bacteria

    What it can't tell you: It does not test PFAS, and not every result on the panel falls under the lab's accredited scope.

Commercial

Certified for a concern found here

Each card names which Duluth findings its current certification covers, and which it doesn't.

As an Amazon Associate, PurityMap earns from qualifying purchases. A product appears here only when a current certification record covers at least one identified concern; every concern stays listed. The retail offer is looked up afterwards and never changes which products appear or their order. Affiliate disclosure.

Under-Sink Filter

Aquasana Claryum 3-Stage Max Flow Under-Sink Filter (AQ-6300M)

  • Lead: eligible, evidence match
Not suitable for (5)
  • Treating every tap in the home
  • A whole-home hard-water or scale problem
  • All PFAS: its evidence covers only the compounds it names
  • Anyone who can't plumb, drill or hire an installer
  • Renters who can't modify plumbing
Countertop System

Aquasana Clean Water Machine Countertop Filter (AQ-CWM2)

  • Lead: eligible, evidence match
Not suitable for (3)
  • Treating every tap in the home
  • A whole-home hard-water or scale problem
  • All PFAS: its evidence covers only the compounds it names
See all 9 products certified for a Duluth concern →
Countertop System

AquaTru Classic Countertop Reverse-Osmosis Purifier (AT2000)

  • Lead: eligible, evidence match
Not suitable for (3)
  • Treating every tap in the home
  • A whole-home hard-water or scale problem
  • All PFAS: its evidence covers only the compounds it names
Water Pitcher

Culligan ZeroWater 10-Cup Pitcher (ZEROP10)

  • Lead: eligible, evidence match
Not suitable for (3)
  • Treating every tap in the home
  • A whole-home hard-water or scale problem
  • All PFAS: its evidence covers only the compounds it names
Faucet Attachment

Faucet-Mount Filter

  • Lead: eligible, evidence match
Not suitable for (3)
  • Treating every tap in the home
  • A whole-home hard-water or scale problem
  • All PFAS: its evidence covers only the compounds it names
Under-Sink Filter

Under-Sink Carbon Block Filter

  • Lead: eligible, evidence match
Not suitable for (4)
  • Treating every tap in the home
  • A whole-home hard-water or scale problem
  • All PFAS: its evidence covers only the compounds it names
  • Anyone who can't plumb, drill or hire an installer
Under-Sink Filter

Under-Sink Reverse-Osmosis System

  • Lead: eligible, evidence match
Not suitable for (5)
  • Treating every tap in the home
  • A whole-home hard-water or scale problem
  • All PFAS: its evidence covers only the compounds it names
  • Anyone who can't plumb, drill or hire an installer
  • Renters who can't modify plumbing
Under-Sink Filter

Waterdrop G3P600 Tankless Reverse-Osmosis System

  • Lead: eligible, evidence match
Not suitable for (5)
  • Treating every tap in the home
  • A whole-home hard-water or scale problem
  • All PFAS: its evidence covers only the compounds it names
  • Anyone who can't plumb, drill or hire an installer
  • Renters who can't modify plumbing
Refrigerator Filter

Whirlpool Filter 3 Refrigerator Water Filter (WHR3RXD1)

  • Lead: eligible, evidence match
Not suitable for (3)
  • Treating every tap in the home
  • A whole-home hard-water or scale problem
  • All PFAS: its evidence covers only the compounds it names
Questions

Frequently asked questions

Is Duluth tap water safe to drink?

PurityMap does not give a safe/unsafe verdict; it shows what the public records measured. For Duluth, no regulated PFAS were detected in EPA's 2024 testing; the lead 90th-percentile result was 8 µg/L against the 15 µg/L action level. Duluth (PWSID MN1690011) has a Purity Score of 90/100 (confidence: moderate), assessed at the water-system level and computed only from contaminants that were measured. Water can change in your own pipes, so a certified test is the only way to know what comes out of your tap.

Who provides tap water in Duluth?

Duluth (PWS ID MN1690011) is the public water system on record for Duluth, Minnesota, serving about 86,859 people. Confirm the utility on your water bill before acting on a specific finding.

Where does Duluth get its drinking water?

Surface water (primary source of record in EPA SDWIS).

Are PFAS "forever chemicals" in Duluth's water?

None of the 29 PFAS in EPA's UCMR 5 testing (2024-06-20 to 2025-03-12) was detected. "Not detected" means below the lab's reporting limit, not proven zero.

Is there lead in Duluth's tap water?

Duluth's most recent lead 90th-percentile result (2023–2025) was 8 µg/L, below the 15 µg/L action level. That figure comes from sampled homes; lead usually enters from a building's own pipes and fixtures, so only a test at your tap tells you what you drink.

What does the latest Duluth water report show?

PurityMap's current record for Duluth holds 31 findings: 1 detected within the reference and 30 not detected. Each finding links to its dated public record; a parameter that was never monitored is shown as pending, not as a pass.

Follow this water

Follow Duluth's water

One email when a new sampling round is published, a result moves above or below its reference, or the system's score changes.

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Sources and dataAll 31 records and their sourcesEPA UCMR 5 · EPA SDWIS (Lead & Copper Rule)
ContaminantResultBenchmarkSampledSource
Lead (90th percentile)8 µg/L15 µg/L federal action level2023–2025 monitoring periodLead & Copper Rule 90th-percentile: Duluth (MN1690011)
30 other contaminants tested — none detected
ContaminantResultBenchmarkSampledSource
11-Chloroeicosafluoro-3-oxaundecane-1-sulfonic acid (11Cl-PF3OUdS)< 5 ng/LNo federal or state limit; shown for transparency2024-06-20 to 2025-03-12UCMR5 Analytical Results: Duluth (MN1690011)
1H, 1H, 2H, 2H-perfluorodecane sulfonic acid (8:2 FTS)< 5 ng/LNo federal or state limit; shown for transparency2024-06-20 to 2025-03-12UCMR5 Analytical Results: Duluth (MN1690011)
1H, 1H, 2H, 2H-perfluorohexane sulfonic acid (4:2 FTS)< 3 ng/LNo federal or state limit; shown for transparency2024-06-20 to 2025-03-12UCMR5 Analytical Results: Duluth (MN1690011)
1H, 1H, 2H, 2H-perfluorooctane sulfonic acid (6:2 FTS)< 5 ng/LNo federal or state limit; shown for transparency2024-06-20 to 2025-03-12UCMR5 Analytical Results: Duluth (MN1690011)
4,8-Dioxa-3H-perfluorononanoic acid (ADONA)< 3 ng/LNo federal or state limit; shown for transparency2024-06-20 to 2025-03-12UCMR5 Analytical Results: Duluth (MN1690011)
9-Chlorohexadecafluoro-3-oxanone-1-sulfonic acid (9Cl-PF3ONS)< 2 ng/LNo federal or state limit; shown for transparency2024-06-20 to 2025-03-12UCMR5 Analytical Results: Duluth (MN1690011)
Hexafluoropropylene oxide dimer acid (HFPO-DA) (GenX chemicals)< 5 ng/L10 ng/L federal MCL (2024)2024-06-20 to 2025-03-12UCMR5 Analytical Results: Duluth (MN1690011)
Lithium< 9 µg/L10 µg/L EPA health reference level (screening, not a legal limit)Screening level, not a legal limit2024-06-20 to 2025-03-12UCMR5 Analytical Results: Duluth (MN1690011)
N-ethyl perfluorooctanesulfonamidoacetic acid (NEtFOSAA)< 5 ng/LNo federal or state limit; shown for transparency2024-06-20 to 2025-03-12UCMR5 Analytical Results: Duluth (MN1690011)
N-methyl perfluorooctanesulfonamidoacetic acid (NMeFOSAA)< 6 ng/LNo federal or state limit; shown for transparency2024-06-20 to 2025-03-12UCMR5 Analytical Results: Duluth (MN1690011)
Nonafluoro-3,6-dioxaheptanoic acid (NFDHA)< 20 ng/LNo federal or state limit; shown for transparency2024-06-20 to 2025-03-12UCMR5 Analytical Results: Duluth (MN1690011)
Perfluoro (2-ethoxyethane) sulfonic acid (PFEESA)< 3 ng/LNo federal or state limit; shown for transparency2024-06-20 to 2025-03-12UCMR5 Analytical Results: Duluth (MN1690011)
Perfluoro-3-methoxypropanoic acid (PFMPA)< 4 ng/LNo federal or state limit; shown for transparency2024-06-20 to 2025-03-12UCMR5 Analytical Results: Duluth (MN1690011)
Perfluoro-4-methoxybutanoic acid (PFMBA)< 3 ng/LNo federal or state limit; shown for transparency2024-06-20 to 2025-03-12UCMR5 Analytical Results: Duluth (MN1690011)
Perfluorobutanesulfonic acid (PFBS)< 3 ng/L2,000 ng/L EPA health advisory (screening, not a legal limit)Screening level, not a legal limit2024-06-20 to 2025-03-12UCMR5 Analytical Results: Duluth (MN1690011)
Perfluorobutanoic acid (PFBA)< 5 ng/LNo federal or state limit; shown for transparency2024-06-20 to 2025-03-12UCMR5 Analytical Results: Duluth (MN1690011)
Perfluorodecanoic acid (PFDA)< 3 ng/LNo federal or state limit; shown for transparency2024-06-20 to 2025-03-12UCMR5 Analytical Results: Duluth (MN1690011)
Perfluorododecanoic acid (PFDoA)< 3 ng/LNo federal or state limit; shown for transparency2024-06-20 to 2025-03-12UCMR5 Analytical Results: Duluth (MN1690011)
Perfluoroheptanesulfonic acid (PFHpS)< 3 ng/LNo federal or state limit; shown for transparency2024-06-20 to 2025-03-12UCMR5 Analytical Results: Duluth (MN1690011)
Perfluoroheptanoic acid (PFHpA)< 3 ng/LNo federal or state limit; shown for transparency2024-06-20 to 2025-03-12UCMR5 Analytical Results: Duluth (MN1690011)
Perfluorohexanesulfonic acid (PFHxS)< 3 ng/L10 ng/L federal MCL (2024)2024-06-20 to 2025-03-12UCMR5 Analytical Results: Duluth (MN1690011)
Perfluorohexanoic acid (PFHxA)< 3 ng/L400,000 ng/L Michigan EGLE state MCL (strictest US state)2024-06-20 to 2025-03-12UCMR5 Analytical Results: Duluth (MN1690011)
Perfluorononanoic acid (PFNA)< 4 ng/L10 ng/L federal MCL (2024)2024-06-20 to 2025-03-12UCMR5 Analytical Results: Duluth (MN1690011)
Perfluorooctanesulfonic acid (PFOS)< 4 ng/L4.0 ng/L federal MCL (2024)2024-06-20 to 2025-03-12UCMR5 Analytical Results: Duluth (MN1690011)
Perfluorooctanoic acid (PFOA)< 4 ng/L4.0 ng/L federal MCL (2024)2024-06-20 to 2025-03-12UCMR5 Analytical Results: Duluth (MN1690011)
Perfluoropentanesulfonic acid (PFPeS)< 4 ng/LNo federal or state limit; shown for transparency2024-06-20 to 2025-03-12UCMR5 Analytical Results: Duluth (MN1690011)
Perfluoropentanoic acid (PFPeA)< 3 ng/LNo federal or state limit; shown for transparency2024-06-20 to 2025-03-12UCMR5 Analytical Results: Duluth (MN1690011)
Perfluorotetradecanoic acid (PFTA)< 8 ng/LNo federal or state limit; shown for transparency2024-06-20 to 2025-03-12UCMR5 Analytical Results: Duluth (MN1690011)
Perfluorotridecanoic acid (PFTrDA)< 7 ng/LNo federal or state limit; shown for transparency2024-06-20 to 2025-03-12UCMR5 Analytical Results: Duluth (MN1690011)
Perfluoroundecanoic acid (PFUnA)< 2 ng/LNo federal or state limit; shown for transparency2024-06-20 to 2025-03-12UCMR5 Analytical Results: Duluth (MN1690011)

Lead (90th percentile)

Result
8 µg/L
Benchmark
15 µg/L federal action level
Sampled
2023–2025 monitoring period
30 other contaminants tested — none detected

11-Chloroeicosafluoro-3-oxaundecane-1-sulfonic acid (11Cl-PF3OUdS)

Result
< 5 ng/L
Benchmark
No federal or state limit; shown for transparency
Sampled
2024-06-20 to 2025-03-12

1H, 1H, 2H, 2H-perfluorodecane sulfonic acid (8:2 FTS)

Result
< 5 ng/L
Benchmark
No federal or state limit; shown for transparency
Sampled
2024-06-20 to 2025-03-12

1H, 1H, 2H, 2H-perfluorohexane sulfonic acid (4:2 FTS)

Result
< 3 ng/L
Benchmark
No federal or state limit; shown for transparency
Sampled
2024-06-20 to 2025-03-12

1H, 1H, 2H, 2H-perfluorooctane sulfonic acid (6:2 FTS)

Result
< 5 ng/L
Benchmark
No federal or state limit; shown for transparency
Sampled
2024-06-20 to 2025-03-12

4,8-Dioxa-3H-perfluorononanoic acid (ADONA)

Result
< 3 ng/L
Benchmark
No federal or state limit; shown for transparency
Sampled
2024-06-20 to 2025-03-12

9-Chlorohexadecafluoro-3-oxanone-1-sulfonic acid (9Cl-PF3ONS)

Result
< 2 ng/L
Benchmark
No federal or state limit; shown for transparency
Sampled
2024-06-20 to 2025-03-12

Hexafluoropropylene oxide dimer acid (HFPO-DA) (GenX chemicals)

Result
< 5 ng/L
Benchmark
10 ng/L federal MCL (2024)
Sampled
2024-06-20 to 2025-03-12

Lithium

Result
< 9 µg/L
Benchmark
10 µg/L EPA health reference level (screening, not a legal limit)Screening level, not a legal limit
Sampled
2024-06-20 to 2025-03-12

N-ethyl perfluorooctanesulfonamidoacetic acid (NEtFOSAA)

Result
< 5 ng/L
Benchmark
No federal or state limit; shown for transparency
Sampled
2024-06-20 to 2025-03-12

N-methyl perfluorooctanesulfonamidoacetic acid (NMeFOSAA)

Result
< 6 ng/L
Benchmark
No federal or state limit; shown for transparency
Sampled
2024-06-20 to 2025-03-12

Nonafluoro-3,6-dioxaheptanoic acid (NFDHA)

Result
< 20 ng/L
Benchmark
No federal or state limit; shown for transparency
Sampled
2024-06-20 to 2025-03-12

Perfluoro (2-ethoxyethane) sulfonic acid (PFEESA)

Result
< 3 ng/L
Benchmark
No federal or state limit; shown for transparency
Sampled
2024-06-20 to 2025-03-12

Perfluoro-3-methoxypropanoic acid (PFMPA)

Result
< 4 ng/L
Benchmark
No federal or state limit; shown for transparency
Sampled
2024-06-20 to 2025-03-12

Perfluoro-4-methoxybutanoic acid (PFMBA)

Result
< 3 ng/L
Benchmark
No federal or state limit; shown for transparency
Sampled
2024-06-20 to 2025-03-12

Perfluorobutanesulfonic acid (PFBS)

Result
< 3 ng/L
Benchmark
2,000 ng/L EPA health advisory (screening, not a legal limit)Screening level, not a legal limit
Sampled
2024-06-20 to 2025-03-12

Perfluorobutanoic acid (PFBA)

Result
< 5 ng/L
Benchmark
No federal or state limit; shown for transparency
Sampled
2024-06-20 to 2025-03-12

Perfluorodecanoic acid (PFDA)

Result
< 3 ng/L
Benchmark
No federal or state limit; shown for transparency
Sampled
2024-06-20 to 2025-03-12

Perfluorododecanoic acid (PFDoA)

Result
< 3 ng/L
Benchmark
No federal or state limit; shown for transparency
Sampled
2024-06-20 to 2025-03-12

Perfluoroheptanesulfonic acid (PFHpS)

Result
< 3 ng/L
Benchmark
No federal or state limit; shown for transparency
Sampled
2024-06-20 to 2025-03-12

Perfluoroheptanoic acid (PFHpA)

Result
< 3 ng/L
Benchmark
No federal or state limit; shown for transparency
Sampled
2024-06-20 to 2025-03-12

Perfluorohexanesulfonic acid (PFHxS)

Result
< 3 ng/L
Benchmark
10 ng/L federal MCL (2024)
Sampled
2024-06-20 to 2025-03-12

Perfluorohexanoic acid (PFHxA)

Result
< 3 ng/L
Benchmark
400,000 ng/L Michigan EGLE state MCL (strictest US state)
Sampled
2024-06-20 to 2025-03-12

Perfluorononanoic acid (PFNA)

Result
< 4 ng/L
Benchmark
10 ng/L federal MCL (2024)
Sampled
2024-06-20 to 2025-03-12

Perfluorooctanesulfonic acid (PFOS)

Result
< 4 ng/L
Benchmark
4.0 ng/L federal MCL (2024)
Sampled
2024-06-20 to 2025-03-12

Perfluorooctanoic acid (PFOA)

Result
< 4 ng/L
Benchmark
4.0 ng/L federal MCL (2024)
Sampled
2024-06-20 to 2025-03-12

Perfluoropentanesulfonic acid (PFPeS)

Result
< 4 ng/L
Benchmark
No federal or state limit; shown for transparency
Sampled
2024-06-20 to 2025-03-12

Perfluoropentanoic acid (PFPeA)

Result
< 3 ng/L
Benchmark
No federal or state limit; shown for transparency
Sampled
2024-06-20 to 2025-03-12

Perfluorotetradecanoic acid (PFTA)

Result
< 8 ng/L
Benchmark
No federal or state limit; shown for transparency
Sampled
2024-06-20 to 2025-03-12

Perfluorotridecanoic acid (PFTrDA)

Result
< 7 ng/L
Benchmark
No federal or state limit; shown for transparency
Sampled
2024-06-20 to 2025-03-12

Perfluoroundecanoic acid (PFUnA)

Result
< 2 ng/L
Benchmark
No federal or state limit; shown for transparency
Sampled
2024-06-20 to 2025-03-12

Every value is the published result from the cited public record. A reporting limit is the lowest level the method could reliably quantify; a non-detect is not a guarantee of zero.

  • UCMR5 Analytical Results

    UCMR5 Analytical Results: Duluth (MN1690011)

    US EPA

    Published
    2026-01-15
    Newest sample
    2025-03-12
    Findings here
    30
  • State SDWIS Compliance Record

    Lead & Copper Rule 90th-percentile: Duluth (MN1690011)

    US EPA SDWIS

    Published
    2026-07-09
    Newest sample
    2025
    Findings here
    1

Methodology: how we analyze water. Prepared with AI assistance and reviewed by the PurityMap Editorial Team before publication.