Tapcensus

All water systems in North Dakota

388 systems

SystemServesStatusRules violated, 3 yrUnresolved
Fargo City of
Fargo · Cass County 		120,762 0 0
Bismarck City of
Bismarck · Burleigh County 		72,417 0 0
Grand Forks Regional Wtp
Grand Forks · Grand Forks County 		57,339 0 0
Minot City of
Minot · Ward County 		48,743 0 0
West Fargo City of
West Fargo · Cass County 		34,858 0 0
Williston City of
Williston · Williams County 		26,426 0 0
Dickinson City of
Dickinson · Stark County 		25,679 0 0
Mandan City of
Mandan · Morton County 		21,769 0 0
Jamestown City of
Jamestown · Stutsman County 		15,427 0 0
Belcourt-Turtle Mtn Rural Water System
County 		13,500 4 0
South Central Rwd North Burleigh
Burleigh County 		10,400 0 0
Southwest Water Authority
Dickinson · Stark County 		8,537 1 0
Wahpeton City of
Wahpeton · Richland County 		7,766 0 0
North Prairie Rwd-System 1&2
Ward County 		7,748 1 1
Devils Lake City of
Devils Lake · Ramsey County 		7,141 0 0
Valley City City of
Valley City · Barnes County 		6,585 0 0
Watford City City of
Watford City · McKenzie County 		6,390 0 0
East Central Regional Wd-Gf
Grand Forks County 		5,995 0 0
Stutsman Rural Water District
Stutsman County 		5,550 0 0
Greater Ramsey Water District
Ramsey County 		5,280 0 0
Northwest Rural Water District
Williams County 		5,102 1 0
Barnes Rural Water District
Valley City · Barnes County 		4,938 0 0
Spirit Lake Water Management Rws
County 		4,400 2 0
Missouri West Water System
Morton County 		4,303 0 0
Grafton City of
Grafton · Walsh County 		4,284 0 0
Lincoln City of
Lincoln · Burleigh County 		4,257 0 0
Cass Rural Water District Fargo
Cass County 		4,242 0 0
Southeast Wud (east)
Abercrombie, Wahpeton · Richland County 		4,225 0 0
Omnd Water Treatment Plant
Mercer County 		4,168 0 0
McKenzie County Wrd
McKenzie County 		3,895 1 1
South Central Regional Water District
Burleigh County 		3,700 0 0
Cass Rural Water District-Phase I
Cass County 		3,658 0 0
South Central Rwd-Emmons
Emmons County 		3,650 0 0
Central Plains Water District
Wells County 		3,504 0 0
Agassiz Water Users District
Grand Forks County 		3,438 1 1
Northeast Rwd North Valley Branch
Pembina County 		3,422 0 0
Beulah City of
Beulah · Mercer County 		3,058 0 0
Walsh Rural Water District
Walsh County 		3,000 0 0
Rugby City of
Rugby · Pierce County 		2,876 0 0
East Central Regional Wd-Traill
Hillsboro · Traill County 		2,800 2 0
North Prairie Rwd-System III
Ward County 		2,742 0 0
New Town, City of
County 		2,528 1 0
Casselton City of
Casselton · Cass County 		2,513 0 0
Tri-County Water District
Lakota · Nelson County 		2,501 0 0
Northeast Rwd-Langdon Branch
Langdon · Cavalier County 		2,450 1 0
Hazen City of
Hazen · Mercer County 		2,411 0 0
Dakota Magic Casino
County 		2,360 7 0
Bottineau City of
Bottineau · Bottineau County 		2,211 1 0
Tioga City of
Tioga · Williams County 		2,202 0 0
Lisbon City of
Lisbon · Ransom County 		2,154 0 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.