STATE REPORT MN 6 ALERTS 65 HEALTH VIOLATIONS

Minnesota Water Quality & Safety Report

38 ZIP codes · 76 water systems · IPC plumbing code · Updated 2026-03-16

Data: EPA SDWIS, NWS, State plumbing boards, Rewiring America Last verified: 2026-03-16

ZIP Codes

Water Systems

ZIPs with Violations

Active Alerts

IPC

Plumbing Code

Overview

We track water quality, weather alerts, plumbing regulations, and energy rebates for 38 ZIP codes across Minnesota, covering 76 community water systems that serve approximately 1,158,270 people.

20 of 38 ZIP codes (53%) have recorded EPA violations. 65 health-based violations have been documented.

Active Weather Alerts

6 active alerts in Minnesota including 6 warnings. Severe weather can directly affect tap water quality — flooding, power outages, and infrastructure damage may lead to boil-water advisories.

Alert	Severity	Areas
Blizzard Warning	Extreme	Wabasha; Dodge; Olmsted; Winona; Mower; Fillmore; Houston…
Blizzard Warning	Extreme	Lincoln; Lyon; Murray; Cottonwood; Nobles; Jackson; Pipes…
Blizzard Warning	Extreme	Le Sueur; Rice; Steele
Blizzard Warning	Extreme	Martin; Faribault; Freeborn
Blizzard Warning	Extreme	Lac Qui Parle; Yellow Medicine; Redwood; Brown; Nicollet;…

View all Minnesota alerts →

Plumbing Regulations

Minnesota follows the Minnesota Plumbing Code (based on IPC) (2020 edition).

Plumbing code: IPC (2020)
Homeowner DIY: Licensed plumber required
Water heater permit: Required
Annual backflow test: Required

Full Minnesota regulations →

Areas with Most Violations

ZIP Code	City	Safety Score	Violations	Health-Based	System
56537	Fergus Falls	—	37	34	Fergus Falls
56501	Detroit Lakes	—	30	16	Detroit Lakes
56601	Bemidji	—	12	0	Bemidji
55362	Monticello	—	10	2	Monticello
55746	Hibbing	—	9	0	Hibbing
55076	Inver Grove Heights	—	8	7	Inver Grove Heights
55401	Minneapolis	—	7	0	Minneapolis
55018	Dennison	—	6	2	Dennison
55007	Brook Park	—	5	4	Brook Park
55901	Rochester	—	5	0	Rochester

Areas with No Violations

ZIP Code	City	Safety Score	System	Population
55006	Braham	—	Braham	1,789
55008	Cambridge	—	Cambridge	9,862
55009	Cannon Falls	—	Cannon Falls	4,237
55011	Cedar	—	Cedarwood Estates	406
55013	Chisago City	—	Chisago City	3,745
55014	Circle Pines	—	Circle Pines	5,075
55024	Farmington	—	Farmington	23,534
55078	Stacy	—	Stacy	1,593
55305	Hopkins	—	Hopkins	19,462
55306	Burnsville	—	Burnsville	61,747

Lead & Copper

0 ZIP codes exceed the EPA lead action level

Radon Risk

High risk (Zone 1): 0 ZIP codes (0%)
Moderate risk (Zone 2): 0 ZIP codes
Low risk (Zone 3): 0 ZIP codes

All 38 ZIP Codes in Minnesota

55003 (Bayport) — 3 violations
56601 (Bemidji) — 12 violations
55006 (Braham)
55007 (Brook Park) — 5 violations ⚠
55306 (Burnsville)
55008 (Cambridge)
55009 (Cannon Falls)
55011 (Cedar)
55012 (Center City) — 3 violations
55013 (Chisago City)
55014 (Circle Pines)
55016 (Cottage Grove) — 1 violation
55018 (Dennison) — 6 violations ⚠
56501 (Detroit Lakes) — 30 violations ⚠
55801 (Duluth)
55019 (Dundas) — 2 violations
55344 (Eden Prairie)
55021 (Faribault) — 2 violations
55024 (Farmington)
56537 (Fergus Falls) — 37 violations ⚠
55025 (Forest Lake) — 2 violations
55730 (Grand Rapids) — 3 violations
55746 (Hibbing) — 9 violations
55305 (Hopkins)
55349 (Howard Lake) — 3 violations
55076 (Inver Grove Heights) — 8 violations ⚠
55357 (Loretto)
56001 (Mankato) — 3 violations
55348 (Maple Plain)
55401 (Minneapolis) — 7 violations
55362 (Monticello) — 10 violations ⚠
56560 (Moorhead)
55311 (Osseo)
55901 (Rochester) — 5 violations
55078 (Stacy)
55082 (Stillwater) — 4 violations
55777 (Virginia)
56387 (Waite Park)

Data Sources

Water quality: EPA Safe Drinking Water Information System (SDWIS)
Weather alerts: National Weather Service (NWS)
Regulations: State plumbing boards, ICC, IAPMO
Rebates: Rewiring America

Updated daily.

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