Tapcensus

All water systems in North Dakota

388 systems

SystemServesStatusRules violated, 3 yrUnresolved
Carrington City of
Carrington · Foster County 		2,065 1 0
Langdon City of
Langdon · Cavalier County 		1,878 0 0
Mayville City of
Mayville · Traill County 		1,858 0 0
Oakes City of
Oakes · Dickey County 		1,856 1 0
Garrison Rural Water District
McLean County 		1,805 0 0
McLean-Sheridan Water District-System 1
McLean County 		1,800 0 0
Harvey City of
Harvey · Wells County 		1,783 0 0
Cass Rural Water District-Phase II
Cass County 		1,700 0 0
Cass Rural Water District-Phase III
Cass County 		1,682 0 0
Southeast Wud (central-Lisbon)
Ransom County 		1,675 1 0
Horace City of
Horace · Cass County 		1,641 4 2
Hillsboro City of
Hillsboro · Traill County 		1,603 0 0
Little Shell
County 		1,500 0 0
Bowman City of
Bowman · Bowman County 		1,470 0 0
Garrison City of
Garrison · McLean County 		1,453 1 1
Crosby City of
Crosby · Divide County 		1,406 0 0
Park River City of
Park River · Walsh County 		1,403 0 0
Ellendale City of
Ellendale · Dickey County 		1,394 1 0
New Rockford City of
New Rockford · Eddy County 		1,391 1 0
Surrey City of
Surrey · Ward County 		1,365 2 0
Larimore City of
Larimore · Grand Forks County 		1,346 0 0
Alexander City of
Alexander · McKenzie County 		1,335 0 0
Mapleton City of
Mapleton · Cass County 		1,320 0 0
Cavalier City of
Cavalier · Pembina County 		1,302 1 0
Upper Souris Water District-System I
Ward County 		1,296 1 0
Rolla City of
Rolla · Rolette County 		1,280 1 0
Southeast Wud (west)
Dickey County 		1,275 0 0
Washburn City of
Washburn · McLean County 		1,246 0 0
Hettinger City of
Hettinger · Adams County 		1,226 0 0
Four Bears Water System
County 		1,200 0 0
Stanley City of
Stanley · Mountrail County 		1,138 1 1
Dakota Rural Water District South
Griggs County 		1,135 0 0
Cando City of
Cando · Towner County 		1,115 0 0
Linton City of
Linton · Emmons County 		1,097 0 0
Velva City of
Velva · McHenry County 		1,084 1 1
All Seasons Wd-System V
Pierce County 		1,075 0 0
Dakota Rural Water District North
Sharon · Griggs County 		1,070 0 0
Burlington City of
Burlington · Ward County 		1,060 1 1
Mandaree Water Plant
County 		1,034 0 0
Belfield City of
Belfield · Stark County 		1,013 1 0
R & T Water System
Ray, Tioga · Williams County 		1,003 0 0
Walhalla City of
Walhalla · Pembina County 		996 0 0
Cooperstown City of
Cooperstown · Griggs County 		984 0 0
Beach City of
Beach · Golden Valley County 		981 2 0
Kenmare City of
Kenmare · Ward County 		961 3 3
White Shield Water Treatment Plant
County 		952 0 0
Wishek City of
Wishek · McIntosh County 		952 0 0
Ray City of
Ray · Williams County 		950 0 0
New Salem City of
New Salem · Morton County 		946 0 0
Northwood City of
Northwood · Grand Forks County 		945 3 0
About this data

Rules violated counts the rules a system was in violation of in the past three years, including monitoring and reporting lapses; one rule can carry several violations. Unresolved is the number of those rules still in violation at EPA's latest data refresh.

Source: the U.S. EPA's Enforcement and Compliance History Online system (ECHO), which publishes the federal Safe Drinking Water Information System. EPA's terms and values are shown as published. The North Dakota records are from EPA's data refresh of Oct 7, 2026; EPA refreshes this data quarterly, and states report to EPA with a lag of three to six months, so the newest violations may not appear yet. Retrieved from ECHO on Oct 11, 2026.