HANKINSON, 08

DAKOTA MAGIC CASINO Water System

Current status

No open violations on record as of July 4, 2026.

This system's next federally required Consumer Confidence Report is due July 1, 2027, under the EPA's revised reporting rule.

Data sourced from the EPA ECHO database (SDWA bulk download), last refreshed July 4, 2026. This is a record-keeping and public-information tool — it does not replace EPA Region 8’s official records. Always confirm current status with EPA Region 8 before making decisions based on this information.

System facts

System ID (PWSID): 083890026
System type: Community Water System
Population served: 2,360
Service connections: 6
Ownership: Native American tribal
Water source: groundwater (wells)

Violation history

Monitoring, Regular
—
Combined Uranium
April 1, 2025 – June 30, 2025
Resolved
Monitoring, Regular
—
Vinyl chloride
January 1, 2025 – March 31, 2025
Resolved
Monitoring, Regular
—
trans-1,2-Dichloroethylene
January 1, 2025 – March 31, 2025
Resolved
Monitoring, Regular
—
1,2-Dichloroethane
January 1, 2025 – March 31, 2025
Resolved
Monitoring, Regular
—
1,1-Dichloroethylene
January 1, 2025 – March 31, 2025
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Arsenic
January 1, 2025 – March 31, 2025
Resolved
Monitoring, Regular
—
p-Dichlorobenzene
January 1, 2025 – March 31, 2025
Resolved
Monitoring, Regular
—
o-Dichlorobenzene
January 1, 2025 – March 31, 2025
Resolved
Monitoring, Regular
—
1,1,2-Trichloroethane
January 1, 2025 – March 31, 2025
Resolved
Monitoring, Regular
—
DICHLOROMETHANE
January 1, 2025 – March 31, 2025
Resolved
Monitoring, Regular
—
Xylenes, Total
January 1, 2025 – March 31, 2025
Resolved
Monitoring, Regular
—
cis-1,2-Dichloroethylene
January 1, 2025 – March 31, 2025
Resolved
Monitoring, Regular
—
1,2,4-Trichlorobenzene
January 1, 2025 – March 31, 2025
Resolved
Monitoring, Regular
—
Radium-226
January 1, 2025 – March 31, 2025
Resolved
Monitoring, Regular
—
Toluene
January 1, 2025 – March 31, 2025
Resolved
Monitoring, Regular
—
Ethylbenzene
January 1, 2025 – March 31, 2025
Resolved
Monitoring, Regular
—
Styrene
January 1, 2025 – March 31, 2025
Resolved
Monitoring, Regular
—
1,1,1-Trichloroethane
January 1, 2025 – March 31, 2025
Resolved
Monitoring, Regular
—
Combined Radium (-226 and -228)
January 1, 2025 – March 31, 2025
Resolved
Monitoring, Regular
—
Gross Alpha, Excl. Radon and U
January 1, 2025 – March 31, 2025
Resolved
Monitoring, Regular
—
Combined Radium (-226 and -228)
October 1, 2024 – December 31, 2024
Resolved
Monitoring, Regular
—
Radium-226
October 1, 2024 – December 31, 2024
Resolved
Monitoring, Regular
—
Heptachlor
July 1, 2024 – September 30, 2024
Resolved
Monitoring, Regular
—
Radium-228
July 1, 2024 – September 30, 2024
Resolved
Monitoring, Regular
—
Radium-226
July 1, 2024 – September 30, 2024
Resolved
Monitoring, Regular
—
Combined Radium (-226 and -228)
July 1, 2024 – September 30, 2024
Resolved
Monitoring, Regular
—
Combined Uranium
July 1, 2024 – September 30, 2024
Resolved
Monitoring, Regular
—
Chlordane
July 1, 2024 – September 30, 2024
Resolved
Monitoring, Regular
—
ETHYLENE DIBROMIDE
July 1, 2024 – September 30, 2024
Resolved
Monitoring, Regular
—
1,2-DIBROMO-3-CHLOROPROPANE
July 1, 2024 – September 30, 2024
Resolved
Monitoring, Regular
—
2,4,5-TP
July 1, 2024 – September 30, 2024
Resolved
Monitoring, Regular
—
Heptachlor epoxide
July 1, 2024 – September 30, 2024
Resolved
Monitoring, Regular
—
Atrazine
July 1, 2024 – September 30, 2024
Resolved
Monitoring, Regular
—
Carbofuran
July 1, 2024 – September 30, 2024
Resolved
Monitoring, Regular
—
Dinoseb
July 1, 2024 – September 30, 2024
Resolved
Monitoring, Regular
—
Di(2-ethylhexyl) phthalate
July 1, 2024 – September 30, 2024
Resolved
Monitoring, Regular
—
Simazine
July 1, 2024 – September 30, 2024
Resolved
Monitoring, Regular
—
CYANIDE
July 1, 2024 – September 30, 2024
Resolved
Monitoring, Routine (RTCR)
—
Revised Total Coliform Rule
June 1, 2024 – June 30, 2024
Resolved
Monitoring, Regular
—
Ethylbenzene
April 1, 2024 – June 30, 2024
Resolved
Monitoring, Regular
—
Tetrachloroethylene
April 1, 2024 – June 30, 2024
Resolved
Monitoring, Regular
—
1,1,1-Trichloroethane
April 1, 2024 – June 30, 2024
Resolved
Monitoring, Regular
—
trans-1,2-Dichloroethylene
April 1, 2024 – June 30, 2024
Resolved
Monitoring, Regular
—
Vinyl chloride
April 1, 2024 – June 30, 2024
Resolved
Monitoring, Regular
—
Xylenes, Total
April 1, 2024 – June 30, 2024
Resolved
Monitoring, Regular
—
Chlordane
April 1, 2024 – June 30, 2024
Resolved
Monitoring, Regular
—
Total Polychlorinated Biphenyls (PCB)
April 1, 2024 – June 30, 2024
Resolved
Monitoring, Regular
—
Pentachlorophenol
April 1, 2024 – June 30, 2024
Resolved
Monitoring, Regular
—
HEXACHLOROBENZENE
April 1, 2024 – June 30, 2024
Resolved
Monitoring, Regular
—
2,4,5-TP
April 1, 2024 – June 30, 2024
Resolved
Monitoring, Regular
—
Heptachlor epoxide
April 1, 2024 – June 30, 2024
Resolved
Monitoring, Regular
—
Endothall
April 1, 2024 – June 30, 2024
Resolved
Monitoring, Regular
—
LASSO
April 1, 2024 – June 30, 2024
Resolved
Monitoring, Regular
—
Atrazine
April 1, 2024 – June 30, 2024
Resolved
Monitoring, Regular
—
Carbofuran
April 1, 2024 – June 30, 2024
Resolved
Monitoring, Regular
—
Dinoseb
April 1, 2024 – June 30, 2024
Resolved
Monitoring, Regular
—
Simazine
April 1, 2024 – June 30, 2024
Resolved
Monitoring, Regular
—
OXAMYL
April 1, 2024 – June 30, 2024
Resolved
Monitoring, Regular
—
Di(2-ethylhexyl) adipate
April 1, 2024 – June 30, 2024
Resolved
Monitoring, Regular
—
Diquat
April 1, 2024 – June 30, 2024
Resolved
Monitoring, Regular
—
Glyphosate
April 1, 2024 – June 30, 2024
Resolved
Monitoring, Regular
—
Dalapon
April 1, 2024 – June 30, 2024
Resolved
Monitoring, Regular
—
Toxaphene
April 1, 2024 – June 30, 2024
Resolved
Monitoring, Regular
—
Endrin
April 1, 2024 – June 30, 2024
Resolved
Monitoring, Regular
—
Heptachlor
April 1, 2024 – June 30, 2024
Resolved
Monitoring, Regular
—
OXAMYL
January 1, 2024 – March 31, 2024
Resolved
Monitoring, Regular
—
Gross Alpha, Excl. Radon and U
January 1, 2024 – March 31, 2024
Resolved
Monitoring, Regular
—
Combined Uranium
January 1, 2024 – March 31, 2024
Resolved
Monitoring, Regular
—
Combined Radium (-226 and -228)
January 1, 2024 – March 31, 2024
Resolved
Monitoring, Regular
—
Radium-226
January 1, 2024 – March 31, 2024
Resolved
Monitoring, Regular
—
Radium-228
January 1, 2024 – March 31, 2024
Resolved
Monitoring, Regular
—
cis-1,2-Dichloroethylene
January 1, 2024 – March 31, 2024
Resolved
Monitoring, Regular
—
DICHLOROMETHANE
January 1, 2024 – March 31, 2024
Resolved
Monitoring, Regular
—
p-Dichlorobenzene
January 1, 2024 – March 31, 2024
Resolved
Monitoring, Regular
—
Vinyl chloride
January 1, 2024 – March 31, 2024
Resolved
Monitoring, Regular
—
1,1-Dichloroethylene
January 1, 2024 – March 31, 2024
Resolved
Monitoring, Regular
—
trans-1,2-Dichloroethylene
January 1, 2024 – March 31, 2024
Resolved
Monitoring, Regular
—
1,2-Dichloroethane
January 1, 2024 – March 31, 2024
Resolved
Monitoring, Regular
—
Di(2-ethylhexyl) phthalate
January 1, 2024 – March 31, 2024
Resolved
Monitoring, Regular
—
Hexachlorocyclopentadiene
January 1, 2024 – March 31, 2024
Resolved
Monitoring, Regular
—
2,4-D
January 1, 2024 – March 31, 2024
Resolved
Monitoring, Regular
—
Total Polychlorinated Biphenyls (PCB)
January 1, 2024 – March 31, 2024
Resolved
Monitoring, Regular
—
1,2-DIBROMO-3-CHLOROPROPANE
January 1, 2024 – March 31, 2024
Resolved
Monitoring, Regular
—
Beryllium, Total
October 1, 2023 – December 31, 2023
Resolved
Monitoring, Regular
—
Cadmium
October 1, 2023 – December 31, 2023
Resolved
Monitoring, Regular
—
Thallium, Total
October 1, 2023 – December 31, 2023
Resolved
Monitoring, Regular
—
Selenium
October 1, 2023 – December 31, 2023
Resolved
Monitoring, Regular
—
Antimony, Total
October 1, 2023 – December 31, 2023
Resolved
Monitoring, Regular
—
Mercury
October 1, 2023 – December 31, 2023
Resolved
Monitoring, Regular
—
Radium-226
October 1, 2023 – December 31, 2023
Resolved
Monitoring, Regular
—
Combined Radium (-226 and -228)
October 1, 2023 – December 31, 2023
Resolved
Monitoring, Regular
—
Combined Uranium
October 1, 2023 – December 31, 2023
Resolved
Monitoring, Regular
—
Gross Alpha, Excl. Radon and U
October 1, 2023 – December 31, 2023
Resolved
Monitoring, Regular
—
Chromium
October 1, 2023 – December 31, 2023
Resolved
Monitoring, Regular
—
Nickel
October 1, 2023 – December 31, 2023
Resolved
Monitoring, Regular
—
Radium-228
October 1, 2023 – December 31, 2023
Resolved
Monitoring, Regular
—
Barium
October 1, 2023 – December 31, 2023
Resolved
Monitoring, Regular
—
Fluoride
October 1, 2023 – December 31, 2023
Resolved
Monitoring, Regular
—
CYANIDE
October 1, 2023 – December 31, 2023
Resolved
Monitoring and Reporting (DBP)
—
Chlorine
January 1, 2023 – March 31, 2023
Resolved
Monitoring, Regular
—
Arsenic
October 1, 2022 – December 31, 2022
Resolved
Lead Consumer Notice
—
Lead and Copper Rule
September 29, 2022 – October 26, 2022
Resolved
Monitoring, Regular
—
Nitrate-Nitrite
January 1, 2022 – December 31, 2022
Resolved
Monitoring, Routine (RTCR)
—
Revised Total Coliform Rule
October 1, 2020 – October 31, 2020
Resolved
Monitoring and Reporting (DBP)
—
TTHM
September 1, 2020 – August 31, 2023
Archived
Monitoring and Reporting (DBP)
—
Total Haloacetic Acids (HAA5)
September 1, 2020 – August 31, 2023
Archived
Monitoring, Regular
—
1,2,4-Trichlorobenzene
January 1, 2020 – December 31, 2022
Resolved
Monitoring, Regular
—
Beryllium, Total
January 1, 2020 – December 31, 2022
Resolved
Monitoring, Regular
—
Cadmium
January 1, 2020 – December 31, 2022
Resolved
Monitoring, Regular
—
Thallium, Total
January 1, 2020 – December 31, 2022
Resolved
Monitoring, Regular
—
Selenium
January 1, 2020 – December 31, 2022
Resolved
Monitoring, Regular
—
Antimony, Total
January 1, 2020 – December 31, 2022
Resolved
Monitoring, Regular
—
Mercury
January 1, 2020 – December 31, 2022
Resolved
Monitoring, Regular
—
Styrene
January 1, 2020 – December 31, 2022
Resolved
Monitoring, Regular
—
Ethylbenzene
January 1, 2020 – December 31, 2022
Resolved
Monitoring, Regular
—
Benzene
January 1, 2020 – December 31, 2022
Resolved
Monitoring, Regular
—
CHLOROBENZENE
January 1, 2020 – December 31, 2022
Resolved
Monitoring, Regular
—
Tetrachloroethylene
January 1, 2020 – December 31, 2022
Resolved
Monitoring, Regular
—
1,1,2-Trichloroethane
January 1, 2020 – December 31, 2022
Resolved
Monitoring, Regular
—
Trichloroethylene
January 1, 2020 – December 31, 2022
Resolved
Monitoring, Regular
—
1,2-Dichloropropane
January 1, 2020 – December 31, 2022
Resolved
Monitoring, Regular
—
Vinyl chloride
January 1, 2020 – December 31, 2022
Resolved
Monitoring, Regular
—
p-Dichlorobenzene
January 1, 2020 – December 31, 2022
Resolved
Monitoring, Regular
—
o-Dichlorobenzene
January 1, 2020 – December 31, 2022
Resolved
Monitoring, Regular
—
DICHLOROMETHANE
January 1, 2020 – December 31, 2022
Resolved
Monitoring, Regular
—
Xylenes, Total
January 1, 2020 – December 31, 2022
Resolved
Monitoring, Regular
—
Combined Radium (-226 and -228)
January 1, 2017 – March 31, 2017
Resolved
Monitoring, Regular
—
Combined Uranium
January 1, 2017 – March 31, 2017
Resolved
Monitoring, Regular
—
Gross Alpha, Excl. Radon and U
October 1, 2016 – December 31, 2016
Resolved
Monitoring, Regular
—
Radium-226
October 1, 2016 – December 31, 2016
Resolved
Monitoring, Regular
—
Combined Radium (-226 and -228)
July 1, 2016 – September 30, 2016
Resolved
Monitoring, Regular
—
Combined Uranium
July 1, 2016 – September 30, 2016
Resolved
Monitoring, Regular
—
Gross Alpha, Excl. Radon and U
July 1, 2016 – September 30, 2016
Resolved
Monitoring, Regular
—
Radium-228
July 1, 2016 – September 30, 2016
Resolved
Monitoring, Regular
—
Radium-226
July 1, 2016 – September 30, 2016
Resolved
Monitoring, Regular
—
Combined Uranium
April 1, 2016 – June 30, 2016
Resolved
Monitoring, Regular
—
Gross Alpha, Excl. Radon and U
April 1, 2016 – June 30, 2016
Resolved
Monitoring, Regular
—
Radium-226
April 1, 2016 – June 30, 2016
Resolved
Monitoring, Regular
—
Radium-228
January 1, 2016 – March 31, 2016
Resolved
Monitoring, Regular
—
Gross Alpha, Excl. Radon and U
January 1, 2015 – March 31, 2015
Resolved
Monitoring, Regular
—
Radium-226
January 1, 2015 – March 31, 2015
Resolved
Monitoring, Regular
—
Radium-228
January 1, 2015 – March 31, 2015
Resolved
Monitoring, Regular
—
CYANIDE
January 1, 2014 – December 31, 2016
Resolved
Monitoring, Regular
—
Fluoride
January 1, 2011 – December 31, 2019
Resolved

Resolved addressed and confirmed by the stateArchived closed in EPA's records (typically due to age or a data correction)

Period	Violation	Contaminant / rule	Health-based	Status
April 1, 2025 – June 30, 2025	Monitoring, Regular	Combined Uranium	—	Resolved
January 1, 2025 – March 31, 2025	Monitoring, Regular	Vinyl chloride	—	Resolved
January 1, 2025 – March 31, 2025	Monitoring, Regular	trans-1,2-Dichloroethylene	—	Resolved
January 1, 2025 – March 31, 2025	Monitoring, Regular	1,2-Dichloroethane	—	Resolved
January 1, 2025 – March 31, 2025	Monitoring, Regular	1,1-Dichloroethylene	—	Resolved
January 1, 2025 – March 31, 2025	Maximum Contaminant Level Violation, Average	Arsenic	Health-based	Resolved
January 1, 2025 – March 31, 2025	Monitoring, Regular	p-Dichlorobenzene	—	Resolved
January 1, 2025 – March 31, 2025	Monitoring, Regular	o-Dichlorobenzene	—	Resolved
January 1, 2025 – March 31, 2025	Monitoring, Regular	1,1,2-Trichloroethane	—	Resolved
January 1, 2025 – March 31, 2025	Monitoring, Regular	DICHLOROMETHANE	—	Resolved
January 1, 2025 – March 31, 2025	Monitoring, Regular	Xylenes, Total	—	Resolved
January 1, 2025 – March 31, 2025	Monitoring, Regular	cis-1,2-Dichloroethylene	—	Resolved
January 1, 2025 – March 31, 2025	Monitoring, Regular	1,2,4-Trichlorobenzene	—	Resolved
January 1, 2025 – March 31, 2025	Monitoring, Regular	Radium-226	—	Resolved
January 1, 2025 – March 31, 2025	Monitoring, Regular	Toluene	—	Resolved
January 1, 2025 – March 31, 2025	Monitoring, Regular	Ethylbenzene	—	Resolved
January 1, 2025 – March 31, 2025	Monitoring, Regular	Styrene	—	Resolved
January 1, 2025 – March 31, 2025	Monitoring, Regular	1,1,1-Trichloroethane	—	Resolved
January 1, 2025 – March 31, 2025	Monitoring, Regular	Combined Radium (-226 and -228)	—	Resolved
January 1, 2025 – March 31, 2025	Monitoring, Regular	Gross Alpha, Excl. Radon and U	—	Resolved
October 1, 2024 – December 31, 2024	Monitoring, Regular	Combined Radium (-226 and -228)	—	Resolved
October 1, 2024 – December 31, 2024	Monitoring, Regular	Radium-226	—	Resolved
July 1, 2024 – September 30, 2024	Monitoring, Regular	Heptachlor	—	Resolved
July 1, 2024 – September 30, 2024	Monitoring, Regular	Radium-228	—	Resolved
July 1, 2024 – September 30, 2024	Monitoring, Regular	Radium-226	—	Resolved
July 1, 2024 – September 30, 2024	Monitoring, Regular	Combined Radium (-226 and -228)	—	Resolved
July 1, 2024 – September 30, 2024	Monitoring, Regular	Combined Uranium	—	Resolved
July 1, 2024 – September 30, 2024	Monitoring, Regular	Chlordane	—	Resolved
July 1, 2024 – September 30, 2024	Monitoring, Regular	ETHYLENE DIBROMIDE	—	Resolved
July 1, 2024 – September 30, 2024	Monitoring, Regular	1,2-DIBROMO-3-CHLOROPROPANE	—	Resolved
July 1, 2024 – September 30, 2024	Monitoring, Regular	2,4,5-TP	—	Resolved
July 1, 2024 – September 30, 2024	Monitoring, Regular	Heptachlor epoxide	—	Resolved
July 1, 2024 – September 30, 2024	Monitoring, Regular	Atrazine	—	Resolved
July 1, 2024 – September 30, 2024	Monitoring, Regular	Carbofuran	—	Resolved
July 1, 2024 – September 30, 2024	Monitoring, Regular	Dinoseb	—	Resolved
July 1, 2024 – September 30, 2024	Monitoring, Regular	Di(2-ethylhexyl) phthalate	—	Resolved
July 1, 2024 – September 30, 2024	Monitoring, Regular	Simazine	—	Resolved
July 1, 2024 – September 30, 2024	Monitoring, Regular	CYANIDE	—	Resolved
June 1, 2024 – June 30, 2024	Monitoring, Routine (RTCR)	Revised Total Coliform Rule	—	Resolved
April 1, 2024 – June 30, 2024	Monitoring, Regular	Ethylbenzene	—	Resolved
April 1, 2024 – June 30, 2024	Monitoring, Regular	Tetrachloroethylene	—	Resolved
April 1, 2024 – June 30, 2024	Monitoring, Regular	1,1,1-Trichloroethane	—	Resolved
April 1, 2024 – June 30, 2024	Monitoring, Regular	trans-1,2-Dichloroethylene	—	Resolved
April 1, 2024 – June 30, 2024	Monitoring, Regular	Vinyl chloride	—	Resolved
April 1, 2024 – June 30, 2024	Monitoring, Regular	Xylenes, Total	—	Resolved
April 1, 2024 – June 30, 2024	Monitoring, Regular	Chlordane	—	Resolved
April 1, 2024 – June 30, 2024	Monitoring, Regular	Total Polychlorinated Biphenyls (PCB)	—	Resolved
April 1, 2024 – June 30, 2024	Monitoring, Regular	Pentachlorophenol	—	Resolved
April 1, 2024 – June 30, 2024	Monitoring, Regular	HEXACHLOROBENZENE	—	Resolved
April 1, 2024 – June 30, 2024	Monitoring, Regular	2,4,5-TP	—	Resolved
April 1, 2024 – June 30, 2024	Monitoring, Regular	Heptachlor epoxide	—	Resolved
April 1, 2024 – June 30, 2024	Monitoring, Regular	Endothall	—	Resolved
April 1, 2024 – June 30, 2024	Monitoring, Regular	LASSO	—	Resolved
April 1, 2024 – June 30, 2024	Monitoring, Regular	Atrazine	—	Resolved
April 1, 2024 – June 30, 2024	Monitoring, Regular	Carbofuran	—	Resolved
April 1, 2024 – June 30, 2024	Monitoring, Regular	Dinoseb	—	Resolved
April 1, 2024 – June 30, 2024	Monitoring, Regular	Simazine	—	Resolved
April 1, 2024 – June 30, 2024	Monitoring, Regular	OXAMYL	—	Resolved
April 1, 2024 – June 30, 2024	Monitoring, Regular	Di(2-ethylhexyl) adipate	—	Resolved
April 1, 2024 – June 30, 2024	Monitoring, Regular	Diquat	—	Resolved
April 1, 2024 – June 30, 2024	Monitoring, Regular	Glyphosate	—	Resolved
April 1, 2024 – June 30, 2024	Monitoring, Regular	Dalapon	—	Resolved
April 1, 2024 – June 30, 2024	Monitoring, Regular	Toxaphene	—	Resolved
April 1, 2024 – June 30, 2024	Monitoring, Regular	Endrin	—	Resolved
April 1, 2024 – June 30, 2024	Monitoring, Regular	Heptachlor	—	Resolved
January 1, 2024 – March 31, 2024	Monitoring, Regular	OXAMYL	—	Resolved
January 1, 2024 – March 31, 2024	Monitoring, Regular	Gross Alpha, Excl. Radon and U	—	Resolved
January 1, 2024 – March 31, 2024	Monitoring, Regular	Combined Uranium	—	Resolved
January 1, 2024 – March 31, 2024	Monitoring, Regular	Combined Radium (-226 and -228)	—	Resolved
January 1, 2024 – March 31, 2024	Monitoring, Regular	Radium-226	—	Resolved
January 1, 2024 – March 31, 2024	Monitoring, Regular	Radium-228	—	Resolved
January 1, 2024 – March 31, 2024	Monitoring, Regular	cis-1,2-Dichloroethylene	—	Resolved
January 1, 2024 – March 31, 2024	Monitoring, Regular	DICHLOROMETHANE	—	Resolved
January 1, 2024 – March 31, 2024	Monitoring, Regular	p-Dichlorobenzene	—	Resolved
January 1, 2024 – March 31, 2024	Monitoring, Regular	Vinyl chloride	—	Resolved
January 1, 2024 – March 31, 2024	Monitoring, Regular	1,1-Dichloroethylene	—	Resolved
January 1, 2024 – March 31, 2024	Monitoring, Regular	trans-1,2-Dichloroethylene	—	Resolved
January 1, 2024 – March 31, 2024	Monitoring, Regular	1,2-Dichloroethane	—	Resolved
January 1, 2024 – March 31, 2024	Monitoring, Regular	Di(2-ethylhexyl) phthalate	—	Resolved
January 1, 2024 – March 31, 2024	Monitoring, Regular	Hexachlorocyclopentadiene	—	Resolved
January 1, 2024 – March 31, 2024	Monitoring, Regular	2,4-D	—	Resolved
January 1, 2024 – March 31, 2024	Monitoring, Regular	Total Polychlorinated Biphenyls (PCB)	—	Resolved
January 1, 2024 – March 31, 2024	Monitoring, Regular	1,2-DIBROMO-3-CHLOROPROPANE	—	Resolved
October 1, 2023 – December 31, 2023	Monitoring, Regular	Beryllium, Total	—	Resolved
October 1, 2023 – December 31, 2023	Monitoring, Regular	Cadmium	—	Resolved
October 1, 2023 – December 31, 2023	Monitoring, Regular	Thallium, Total	—	Resolved
October 1, 2023 – December 31, 2023	Monitoring, Regular	Selenium	—	Resolved
October 1, 2023 – December 31, 2023	Monitoring, Regular	Antimony, Total	—	Resolved
October 1, 2023 – December 31, 2023	Monitoring, Regular	Mercury	—	Resolved
October 1, 2023 – December 31, 2023	Monitoring, Regular	Radium-226	—	Resolved
October 1, 2023 – December 31, 2023	Monitoring, Regular	Combined Radium (-226 and -228)	—	Resolved
October 1, 2023 – December 31, 2023	Monitoring, Regular	Combined Uranium	—	Resolved
October 1, 2023 – December 31, 2023	Monitoring, Regular	Gross Alpha, Excl. Radon and U	—	Resolved
October 1, 2023 – December 31, 2023	Monitoring, Regular	Chromium	—	Resolved
October 1, 2023 – December 31, 2023	Monitoring, Regular	Nickel	—	Resolved
October 1, 2023 – December 31, 2023	Monitoring, Regular	Radium-228	—	Resolved
October 1, 2023 – December 31, 2023	Monitoring, Regular	Barium	—	Resolved
October 1, 2023 – December 31, 2023	Monitoring, Regular	Fluoride	—	Resolved
October 1, 2023 – December 31, 2023	Monitoring, Regular	CYANIDE	—	Resolved
January 1, 2023 – March 31, 2023	Monitoring and Reporting (DBP)	Chlorine	—	Resolved
October 1, 2022 – December 31, 2022	Monitoring, Regular	Arsenic	—	Resolved
September 29, 2022 – October 26, 2022	Lead Consumer Notice	Lead and Copper Rule	—	Resolved
January 1, 2022 – December 31, 2022	Monitoring, Regular	Nitrate-Nitrite	—	Resolved
October 1, 2020 – October 31, 2020	Monitoring, Routine (RTCR)	Revised Total Coliform Rule	—	Resolved
September 1, 2020 – August 31, 2023	Monitoring and Reporting (DBP)	TTHM	—	Archived
September 1, 2020 – August 31, 2023	Monitoring and Reporting (DBP)	Total Haloacetic Acids (HAA5)	—	Archived
January 1, 2020 – December 31, 2022	Monitoring, Regular	1,2,4-Trichlorobenzene	—	Resolved
January 1, 2020 – December 31, 2022	Monitoring, Regular	Beryllium, Total	—	Resolved
January 1, 2020 – December 31, 2022	Monitoring, Regular	Cadmium	—	Resolved
January 1, 2020 – December 31, 2022	Monitoring, Regular	Thallium, Total	—	Resolved
January 1, 2020 – December 31, 2022	Monitoring, Regular	Selenium	—	Resolved
January 1, 2020 – December 31, 2022	Monitoring, Regular	Antimony, Total	—	Resolved
January 1, 2020 – December 31, 2022	Monitoring, Regular	Mercury	—	Resolved
January 1, 2020 – December 31, 2022	Monitoring, Regular	Styrene	—	Resolved
January 1, 2020 – December 31, 2022	Monitoring, Regular	Ethylbenzene	—	Resolved
January 1, 2020 – December 31, 2022	Monitoring, Regular	Benzene	—	Resolved
January 1, 2020 – December 31, 2022	Monitoring, Regular	CHLOROBENZENE	—	Resolved
January 1, 2020 – December 31, 2022	Monitoring, Regular	Tetrachloroethylene	—	Resolved
January 1, 2020 – December 31, 2022	Monitoring, Regular	1,1,2-Trichloroethane	—	Resolved
January 1, 2020 – December 31, 2022	Monitoring, Regular	Trichloroethylene	—	Resolved
January 1, 2020 – December 31, 2022	Monitoring, Regular	1,2-Dichloropropane	—	Resolved
January 1, 2020 – December 31, 2022	Monitoring, Regular	Vinyl chloride	—	Resolved
January 1, 2020 – December 31, 2022	Monitoring, Regular	p-Dichlorobenzene	—	Resolved
January 1, 2020 – December 31, 2022	Monitoring, Regular	o-Dichlorobenzene	—	Resolved
January 1, 2020 – December 31, 2022	Monitoring, Regular	DICHLOROMETHANE	—	Resolved
January 1, 2020 – December 31, 2022	Monitoring, Regular	Xylenes, Total	—	Resolved
January 1, 2017 – March 31, 2017	Monitoring, Regular	Combined Radium (-226 and -228)	—	Resolved
January 1, 2017 – March 31, 2017	Monitoring, Regular	Combined Uranium	—	Resolved
October 1, 2016 – December 31, 2016	Monitoring, Regular	Gross Alpha, Excl. Radon and U	—	Resolved
October 1, 2016 – December 31, 2016	Monitoring, Regular	Radium-226	—	Resolved
July 1, 2016 – September 30, 2016	Monitoring, Regular	Combined Radium (-226 and -228)	—	Resolved
July 1, 2016 – September 30, 2016	Monitoring, Regular	Combined Uranium	—	Resolved
July 1, 2016 – September 30, 2016	Monitoring, Regular	Gross Alpha, Excl. Radon and U	—	Resolved
July 1, 2016 – September 30, 2016	Monitoring, Regular	Radium-228	—	Resolved
July 1, 2016 – September 30, 2016	Monitoring, Regular	Radium-226	—	Resolved
April 1, 2016 – June 30, 2016	Monitoring, Regular	Combined Uranium	—	Resolved
April 1, 2016 – June 30, 2016	Monitoring, Regular	Gross Alpha, Excl. Radon and U	—	Resolved
April 1, 2016 – June 30, 2016	Monitoring, Regular	Radium-226	—	Resolved
January 1, 2016 – March 31, 2016	Monitoring, Regular	Radium-228	—	Resolved
January 1, 2015 – March 31, 2015	Monitoring, Regular	Gross Alpha, Excl. Radon and U	—	Resolved
January 1, 2015 – March 31, 2015	Monitoring, Regular	Radium-226	—	Resolved
January 1, 2015 – March 31, 2015	Monitoring, Regular	Radium-228	—	Resolved
January 1, 2014 – December 31, 2016	Monitoring, Regular	CYANIDE	—	Resolved
January 1, 2011 – December 31, 2019	Monitoring, Regular	Fluoride	—	Resolved

Resolved addressed and confirmed by the stateArchived closed in EPA's records (typically due to age or a data correction)

Enforcement actions

August 22, 2025State Compliance achieved14 linked violations
January 30, 2025State Compliance achieved12 linked violations
July 9, 2024State Compliance achieved6 linked violations
May 9, 2024State Public Notification received1 linked violation
February 26, 2024State Compliance achieved2 linked violations
January 23, 2024State Public Notification received3 linked violations
June 21, 2023State Compliance achieved22 linked violations
October 26, 2022State Compliance achieved7 linked violations
January 27, 2021State Public Notification received3 linked violations
August 11, 2017State Compliance achieved10 linked violations
November 9, 2016State Compliance achieved10 linked violations
June 30, 2015State Compliance achieved27 linked violations
July 9, 2002State Violation/Reminder Notice93 linked violations

Contact

THOMPSON, KA-TINA

701-634-3000

HANKINSON, ND 58041