STATE REPORT ND 1 HEALTH VIOLATIONS

North Dakota Water Quality & Safety Report

33 ZIP codes · 61 water systems · IPC plumbing code · Updated 2026-03-16

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

33
ZIP Codes
61
Water Systems
16
ZIPs with Violations
IPC
Plumbing Code

Overview

We track water quality, weather alerts, plumbing regulations, and energy rebates for 33 ZIP codes across North Dakota, covering 61 community water systems that serve approximately 395,412 people.

16 of 33 ZIP codes (48%) have recorded EPA violations. 1 health-based violations have been documented.

Plumbing Regulations

North Dakota follows the International Plumbing Code (2018 edition).

  • Plumbing code: IPC (2018)
  • Homeowner DIY: Allowed with permit
  • Water heater permit: Required
  • Annual backflow test: Required

Full North Dakota regulations →

Areas with Most Violations

ZIP CodeCitySafety ScoreViolationsHealth-BasedSystem
58801Williston—120WILLISTON CITY OF
58032Forman—110FORMAN CITY OF
58001Abercrombie—100ABERCROMBIE CITY OF
58004Amenia—90AMENIA CITY OF
58030Fairmount—80FAIRMOUNT CITY OF
58038Grandin—80GRANDIN CITY OF
58045Hillsboro—70EAST CENTRAL REGIONAL WD-TRAILL
58011Buffalo—60BUFFALO CITY OF
58021Davenport—41DAVENPORT CITY OF
58036Gardner—40GARDNER CITY OF

Areas with No Violations

ZIP CodeCitySafety ScoreSystemPopulation
58005Argusville—ARGUSVILLE CITY OF475
58006Arthur—ARTHUR CITY OF337
58008Barney—BARNEY CITY OF52
58012Casselton—CASSELTON CITY OF2,513
58018Colfax—COLFAX CITY OF121
58027Enderlin—ENDERLIN CITY OF886
58040Gwinner—GWINNER CITY OF753
58041Hankinson—HANKINSON CITY OF919
58046Hope—HOPE CITY OF258
58051Kindred—CASS RURAL WATER DISTRICT FARGO4,242

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 33 ZIP Codes in North Dakota

Data Sources

Updated daily.

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