County · Minnesota

St. Louis County, Minnesota: drinking water records

Name: Drinking water records for St. Louis County, Minnesota
Creator: U.S. Environmental Protection Agency
License: https://www.usa.gov/government-works

Explore EPA records for 31 community water systems across 42 ZIP codes in St. Louis County, then find water-testing resources and available recent monitoring-station readings.

In focus31Community water systems

Public records. Clearer context.

Data as of EPA UCMR 5 final release, August 2026 (file dated Aug 28, 2026) · EPA SDWIS 2026Q2 (file dated Jul 9, 2026). How we build these pages

Drinking-water records

EPA survey and compliance records are historical reports. UCMR 5 results are available for 8 of the 31 listed systems in this snapshot. A system with no reported PFAS detection is not a test of every tap or every contaminant.

systems in EPA's PFAS survey

systems where PFAS was found

systems at or above the PFOA or PFOS limit, on the yearly-average basis EPA uses

systems that have reached the lead action level

systems with a health-based violation since 2016

System population figures are summed from EPA registry records and can overlap where wholesalers and retail systems serve the same people. They are not a Census county-population estimate.

Water systems in this county

All 31 active community systems in the available county records, sorted by record completeness. Scroll the table to explore more systems.

Water system	People served	PFAS survey results	PFAS found	Health-based violations	Lead, 9 in 10 homes at or below
Duluth MN1690011	86,859	120	0	1	8 ppbbelow the action level
Eveleth MN1690018	3,770	120	1	3	3 ppbbelow the action level
Ely MN1690014	3,258	120	0	3	5 ppbbelow the action level
Hibbing MN1690022	16,028	120	0	0	32 ppbat or above the action level
Virginia MN1690046	8,361	120	0	0	0 ppbbelow the action level
Hermantown MN1690043	7,215	120	0	0	0 ppbbelow the action level
Chisholm MN1690007	4,940	120	0	0	4 ppbbelow the action level
Biwabik MN1690004	975	0	0	2	0 ppbbelow the action level
Floodwood MN1690048	501	60	0	0	0 ppbbelow the action level
Meadowlands MN1690034	135	0	0	1	0 ppbbelow the action level
Proctor MN1690042	3,099	0	0	0	2 ppbbelow the action level
Mountain Iron MN1690035	2,880	0	0	0	0 ppbbelow the action level
Hoyt Lakes MN1690028	2,020	0	0	0	0 ppbbelow the action level
Gilbert MN1690020	1,829	0	0	0	0 ppbbelow the action level
Aurora MN1690002	1,764	0	0	0	0 ppbbelow the action level
White Township MN1690001	1,559	0	0	0	0 ppbbelow the action level
Babbitt MN1690003	1,379	0	0	0	0 ppbbelow the action level
Rice Lake MN1690049	1,085	0	0	0	0 ppbbelow the action level
Buhl MN1690006	1,000	0	0	0	0 ppbbelow the action level
Cook MN1690009	574	0	0	0	0 ppbbelow the action level
Fayal Township MN1690058	565	0	0	0	0 ppbbelow the action level
Breitung MN1690045	446	0	0	0	3 ppbbelow the action level
Tower MN1690051	426	0	0	0	0 ppbbelow the action level
Orr MN1690038	249	0	0	0	2 ppbbelow the action level
Winton MN1690057	173	0	0	0	3 ppbbelow the action level
Kinney MN1690031	154	0	0	0	0 ppbbelow the action level
Mckinley MN1690033	110	0	0	0	2 ppbbelow the action level
Iron Junction MN1690029	87	0	0	0	2 ppbbelow the action level
Forbes Mobile Home Park MN1690008	70	0	0	0	0 ppbbelow the action level
Iron Bowl MHP MN1690030	44	0	0	0	0 ppbbelow the action level
Lakeland Terrace Mobile Home Park MN1690063	42	0	0	0	0 ppbbelow the action level

Shaded rows report lead at or above the 15 ppb action level in their latest monitoring period. EPA sets that level for the value 9 in 10 sampled homes fall at or below; reaching it requires the utility to act, and it is not a measurement of any single tap. One system in this table is at or above it. What an action level means

USGS · Monitoring stations

The water, more recently.

Available station readings in St. Louis County, Minnesota. Each measurement keeps its time, unit and original source.

These readings describe water at a monitoring station. They do not test your tap, measure PFAS or lead, or determine whether water is safe to drink or swim in.

Recent observations load when this section comes into view.

How these readings update

We check for updates every 10 minutes while this section is visible and show supported observations from the last 48 hours. The time beside a reading is when USGS measured it; the checked time is when our service retrieved the response. We mark a reading more than 6 hours old as older. Provisional observations can change after USGS review. A missing reading does not mean zero or clean water.

Temperature, pH, dissolved oxygen, turbidity, conductivity, streamflow and water level are shown only where a station reports them. Different measurements have different units and sampling intervals. USGS data and documentation.

Your next step

Water testing, reports & local help.

Use these official directories to find your drinking-water agency, a certified laboratory and public water records. We have not yet added an individually reviewed local resource list for this county.

Official national directories

Water testing

Find your state’s private-well program

EPA’s state directory points well owners to local program information. Services and eligibility vary by state and county.

U.S. Environmental Protection Agency
Source reviewed 2026-09-15 · Source updated 2026-08-05

Water testing

Find a certified drinking-water laboratory

Use EPA’s directory to reach your state’s laboratory certification program. EPA does not provide on-request testing of residential drinking water.

U.S. Environmental Protection Agency
Source reviewed 2026-09-15 · Source updated 2026-08-11

Public records

Find your utility’s Consumer Confidence Report

EPA links to community water-system reports and explains how to read them. Look for your actual supplier rather than assuming every address in a county shares one system.

U.S. Environmental Protection Agency
Source reviewed 2026-09-15 · Source updated 2026-09-09

Public records

Explore USGS water observations

Find current and historical observations from USGS monitoring locations, including available stream, lake, and groundwater data. Measurements vary by station and do not replace a test of your household water.

U.S. Geological Survey
Source reviewed 2026-09-15

A county overview cannot identify every property’s water provider. If you use a public water system, confirm its name on your bill and request its annual Consumer Confidence Report. Private wells need their own testing; public-system records do not describe a private well.

Understand water testing and laboratory reports

Resource descriptions are compiled by Tap Water Lookup. Review dates describe our source check, not a new water sample. How we review sources · Suggest a correction

Explore your area

Local coverage in St. Louis County

42ZIP areas in this overview

Explore the water-system records, recent station readings and testing resources on this county page. They describe the systems and stations identified in each section; they are not a separate water test for every community.

Towns and communities

Babbitt
Biwabik
Brookston
Buhl
Chisholm
Cook
Duluth
Eveleth
Floodwood
Gilbert
Hermantown
Hibbing
Hoyt Lakes
Kinney
Meadowlands
Mountain Iron
Nett Lake
Rice Lake
Soudan
Tower
Virginia

Explore water-system records Find water-testing resources

View ZIP areas and understand coverage

55602
55702
55703
55705Biwabik
55706Babbitt
55708Biwabik
55710Mountain Iron
55711Brookston
55713Buhl
55717
55719Chisholm
55723Cook
55724
55725
55732Babbitt
55734Eveleth
55736Floodwood
55738
55741Gilbert
55746Hibbing
55750Hoyt Lakes
55751Mountain Iron
55758Kinney
55763
55765Meadowlands
55768Mountain Iron
55771Nett Lake
55779
55782Soudan
55790Tower
55792Virginia
55802Duluth
55803Rice Lake
55804Duluth
55805Duluth
55806Duluth
55807Duluth
55808Duluth
55810Hermantown
55811Hermantown
55812Duluth
55814Hermantown

These Census ZIP Code Tabulation Areas are grouped here by their largest county overlap. A ZIP area can cross county lines and contain several water suppliers or private wells. Place labels reflect Census geography, not verified postal city names or utility service boundaries.

Records for these areas are currently presented in this county overview rather than individual ZIP reports. An unpublished report does not mean there are no water records. Confirm your supplier on your water bill; if you use a private well, testing your own well is the relevant next step.

Beyond this county page

Keep reading. Compare nearby.

PFASChoosing a PFAS filterPFAS was found in 1 of the 8 systems EPA surveyed here. See how to check a filter’s certified PFAS reduction.LeadChoosing a lead filter7 systems here have reached the lead action level. See how to check a filter’s lead-reduction certification.Your utilityFind your annual water reportConfirm the supplier on your bill, then read its Consumer Confidence Report for local results.

Counties near St. Louis County

All Minnesota counties

Sources and scope

EPA UCMR 5 occurrence data, samples collected 2023-01-03 – 2026-06-17, final release, August 2026 (file dated Aug 28, 2026); EPA SDWIS via ECHO, 2026Q2 extract (file dated Jul 9, 2026); EPA service-area boundaries v3.0; Census 2020 ZCTAs. Database prepared 2026-09-03.

Counts cover the systems that report this county to EPA. A water system may cross county lines. "Found" means at least one result at or above the laboratory reporting level; it is not a compliance finding.

Compiled by Tap Water Lookup from the sources identified on this page. Read the methodology and review process.