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State file — ND

Underground storage tanks in North Dakota

3,620 registered facilities · 2,564 tanks in service · 1,047 leak records · 57 open cleanup cases (EPA UST Finder snapshot, 2018–2021 state data).

3,620UST facilities
2,564tanks in service
8,288closed tanks
1,047leak records
57open cases
92%cases closed / NFA

North Dakota runs 32.3 tanks in service per 10,000 residents (population 793,399). 959 of its 1,047 reported releases have reached No Further Action. The regulator of record is the North Dakota DEQ UST Program, which holds the live registration and case files.

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By county

CountyFacilitiesTanks in serviceLeak recordsOpen cases
Adams County18830
Barnes County9653330
Benson County5311143
Billings County15340
Bottineau County5152141
Bowman County313470
Burke County362491
Burleigh County231196644
Cass County3993931734
Cavalier County651580
Dickey County392480
Divide County2425193
Dunn County4315170
Eddy County121220
Emmons County221660
Foster County3722120
Golden Valley County181260
Grand Forks County196177541
Grant County241570
Griggs County341091
Hettinger County192320
Kidder County221470
LaMoure County439120
Logan County17470
McHenry County6639152
McIntosh County201240
McKenzie County7654193
McLean County11994323
Mercer County4641112
Morton County11087462
Mountrail County119120232
Nelson County681950
Oliver County9140
Pembina County4627110
Pierce County272530
Ramsey County10136160
Ransom County392590
Renville County362380
Richland County7359272
Rolette County5935184
Sargent County241190
Sheridan County19730
Sioux County4538120
Slope County6010
Stark County164123524
Steele County411170
Stutsman County15169390
Towner County251530
Traill County4245170
Walsh County9348150
Ward County2662038110
Wells County382391
Williams County147107514

Frequently asked questions

How many underground storage tanks are in North Dakota?

The EPA UST Finder snapshot lists 3,620 registered UST facilities in North Dakota, with 2,564 tanks in service and 8,288 closed or removed tanks across 53 countys.

How many tank leaks have been reported in North Dakota?

1,047 releases are on record statewide. 959 (92%) were closed with No Further Action; 57 cleanup cases remained open in the snapshot.

Which North Dakota county has the most underground storage tanks?

By facility count: Cass (399), Ward (266), Burleigh (231), Grand Forks (196), Stark (164). Use the county pages for tank and leak detail, or screen any specific address free at https://tankcheckusa.site/.