Safe Drinking Water Information System (SDWIS) Federal Reporting Services

Your Drinking Water Query results from SDWIS Fed Reporting Services

PWS ID	083890003
PWS Name	TWIN BUTTES WATER PLANT
PWS Type	Community water system
Owner Type	Federal government
Primary Source	Surface water
Primacy Type	Tribal
Is Wholesaler?	No
Population Served	792
County Served

The tables below list all violations that the state reported to EPA for this water system. Health-based violations are listed first, followed by treatment technique, MRDL, monitoring, reporting, and other violations.

Health-based	Violations of maximum contaminant levels (MCLs) or maximum residual disinfectant levels (MRDLs), which specify the highest concentrations of contaminants or disinfectants, respectively, allowed in drinking water; or of treatment technique (TT) rules, which specify required processes intended to reduce the amounts of contaminants in drinking water. MCLs, MRDLs, and treatment technique rules are all health-based drinking water standards.
Maximum Contaminant Level or MCL	The highest level of a contaminant that is allowed in drinking water. MCLs are set as close to the MCLGs as feasible using the best available treatment technology.
Treatment Technique	A required process intended to reduce the level of a contaminant in drinking water.
Maximum residual disinfectant level or MRDL	The highest level of a disinfectant allowed in drinking water. There is convincing evidence that addition of a disinfectant is necessary for control of microbial contaminants.
Monitoring & reporting	Failure to conduct regular monitoring of drinking water quality, as required by SDWA, or to submit monitoring results in a timely fashion to the primacy agency or EPA.
Public notification & other	Failure to provide notification to the public as required by the Violations of Public Notification Rule and the Consumer Confidence Report Rule, and violations of other requirements such as those violations related to variances and exemptions.

Violations

Violation Category Code	Violation Type Description	Rule Name	Contaminant Name	Violation ID	Compliance Status Description	Compliance Period Begin Date	Compliance Period End Date	Is Health Based Ind
MR	Monitoring, Regular	Radionuclides and Revised Rad Rule	Combined Radium (-226 and -228)	53302	Returned to Compliance	01-OCT-2021	31-DEC-2021	No
MR	Monitoring, Regular	Radionuclides and Revised Rad Rule	Combined Uranium	53301	Returned to Compliance	01-OCT-2021	31-DEC-2021	No
MR	Monitoring, Regular	Radionuclides and Revised Rad Rule	Gross Alpha, Excl. Radon and U	53300	Returned to Compliance	01-OCT-2021	31-DEC-2021	No
MR	Monitoring, Regular	Radionuclides and Revised Rad Rule	Radium-228	53304	Returned to Compliance	01-OCT-2021	31-DEC-2021	No
MR	Monitoring, Regular	Radionuclides and Revised Rad Rule	Radium-226	53303	Returned to Compliance	01-OCT-2021	31-DEC-2021	No
MR	Monitoring, Regular	Radionuclides and Revised Rad Rule	Gross Alpha, Excl. Radon and U	53295	Returned to Compliance	01-JUL-2021	30-SEP-2021	No
MR	Monitoring, Regular	Radionuclides and Revised Rad Rule	Radium-226	53298	Returned to Compliance	01-JUL-2021	30-SEP-2021	No
MR	Monitoring, Regular	Radionuclides and Revised Rad Rule	Combined Radium (-226 and -228)	53297	Returned to Compliance	01-JUL-2021	30-SEP-2021	No
MR	Monitoring, Regular	Radionuclides and Revised Rad Rule	Combined Uranium	53296	Returned to Compliance	01-JUL-2021	30-SEP-2021	No
MR	Monitoring, Regular	Radionuclides and Revised Rad Rule	Radium-228	53299	Returned to Compliance	01-JUL-2021	30-SEP-2021	No
MCL	Maximum Contaminant Level Violation, Average	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	53292	Returned to Compliance	01-APR-2021	30-JUN-2021	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	53281	Returned to Compliance	01-JAN-2021	31-MAR-2021	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	53282	Returned to Compliance	01-JAN-2021	31-MAR-2021	Yes
MR	Monitoring, Regular	Radionuclides and Revised Rad Rule	Combined Uranium	53286	Returned to Compliance	01-JAN-2021	31-MAR-2021	No
MR	Monitoring, Regular	Radionuclides and Revised Rad Rule	Combined Radium (-226 and -228)	53287	Returned to Compliance	01-JAN-2021	31-MAR-2021	No
MR	Monitoring, Regular	Radionuclides and Revised Rad Rule	Radium-226	53288	Returned to Compliance	01-JAN-2021	31-MAR-2021	No
MR	Monitoring, Regular	Radionuclides and Revised Rad Rule	Radium-228	53289	Returned to Compliance	01-JAN-2021	31-MAR-2021	No
MR	Monitoring, Regular	Radionuclides and Revised Rad Rule	Gross Alpha, Excl. Radon and U	53285	Returned to Compliance	01-JAN-2021	31-MAR-2021	No
MCL	Maximum Contaminant Level Violation, Average	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	53280	Returned to Compliance	01-OCT-2020	31-DEC-2020	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	53279	Returned to Compliance	01-OCT-2020	31-DEC-2020	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	53277	Returned to Compliance	01-JUL-2020	30-SEP-2020	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	53278	Returned to Compliance	01-JUL-2020	30-SEP-2020	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	53270	Returned to Compliance	01-APR-2020	30-JUN-2020	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	53271	Returned to Compliance	01-APR-2020	30-JUN-2020	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	53266	Returned to Compliance	01-JAN-2020	31-MAR-2020	Yes
MR	Monitoring and Reporting (DBP)	Stage 2 Disinfectants and Disinfection Byproducts Rule	Total Haloacetic Acids (HAA5)	53212	Returned to Compliance	01-JUL-2015	30-SEP-2015	No
MR	Monitoring and Reporting (DBP)	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	53211	Returned to Compliance	01-JUL-2015	30-SEP-2015	No
MCL	Maximum Contaminant Level Violation, Average	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	53210	Returned to Compliance	01-APR-2015	30-JUN-2015	Yes
MR	Monitoring, Routine Major (TCR)	Total Coliform Rule	Coliform (TCR)	53207	Returned to Compliance	01-FEB-2013	28-FEB-2013	No
MCL	Maximum Contaminant Level Violation, Average	Stage 1 Disinfectants and Disinfection Byproducts Rule	TTHM	53208	Returned to Compliance	01-JAN-2013	31-MAR-2013	Yes
MR	Follow-up Or Routine LCR Tap M/R	Lead and Copper Rule	Lead and Copper Rule	53209	Returned to Compliance	01-JAN-2010	-	No
MR	Monitoring, Routine Major (TCR)	Total Coliform Rule	Coliform (TCR)	199	Known	01-APR-1999	30-APR-1999	No
MR	Monitoring, Regular	Inorganic Chemicals	Antimony, Total	20100	Known	01-JAN-1999	31-DEC-1999	No
MR	Monitoring, Regular	Nitrate Rule	Nitrate	10000	Known	01-JAN-1999	31-DEC-1999	No
MR	Monitoring, Regular	Inorganic Chemicals	Nickel	21000	Known	01-JAN-1999	31-DEC-1999	No
MR	Monitoring, Regular	Inorganic Chemicals	CYANIDE	20700	Known	01-JAN-1999	31-DEC-1999	No
MR	Monitoring, Regular	Inorganic Chemicals	Thallium, Total	21300	Known	01-JAN-1999	31-DEC-1999	No
MR	Monitoring, Regular	Inorganic Chemicals	Beryllium, Total	20400	Known	01-JAN-1999	31-DEC-1999	No
MR	Monitoring, Routine Major (TCR)	Total Coliform Rule	Coliform (TCR)	598	Known	01-JUL-1998	31-JUL-1998	No
MR	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	Surface Water Treatment Rule	498	Known	01-MAY-1998	31-MAY-1998	No
MR	Monitoring, Routine Major (TCR)	Total Coliform Rule	Coliform (TCR)	898	Known	01-SEP-1997	30-SEP-1997	No
MR	Monitoring, Routine Major (TCR)	Total Coliform Rule	Coliform (TCR)	597	Known	01-JUN-1997	30-JUN-1997	No
MR	Monitoring, Routine Major (TCR)	Total Coliform Rule	Coliform (TCR)	1596	Known	01-JUN-1996	30-JUN-1996	No
MR	Monitoring, Routine Major (TCR)	Total Coliform Rule	Coliform (TCR)	1396	Known	01-MAY-1996	31-MAY-1996	No
MR	Monitoring, Routine Major (TCR)	Total Coliform Rule	Coliform (TCR)	1296	Known	01-APR-1996	30-APR-1996	No
MR	Monitoring, Routine Major (TCR)	Total Coliform Rule	Coliform (TCR)	696	Known	01-MAR-1996	31-MAR-1996	No
MR	Monitoring, Routine Major (TCR)	Total Coliform Rule	Coliform (TCR)	596	Known	01-FEB-1996	29-FEB-1996	No
MR	Monitoring, Routine Major (TCR)	Total Coliform Rule	Coliform (TCR)	496	Known	01-JAN-1996	31-JAN-1996	No
MR	Monitoring, Regular	Inorganic Chemicals	Chromium	20699	Known	01-JAN-1996	31-DEC-1998	No
MR	Monitoring, Regular	Inorganic Chemicals	Selenium	21199	Known	01-JAN-1996	31-DEC-1998	No

1 - 50 of 109

Enforcement Actions

Latest Enforcement ID	Associated To Violation ID	Enforcement Action Type Code	Enforcement Action Description	Enforcement Date	Originator Description	Enforcement Comment
14755	53299	SOX	State Compliance achieved	14-JUN-2022	Region	For 3Q2021. Data was in. kl
14755	53295	SOX	State Compliance achieved	14-JUN-2022	Region	For 3Q2021. Data was in. kl
14755	53296	SOX	State Compliance achieved	14-JUN-2022	Region	For 3Q2021. Data was in. kl
14755	53297	SOX	State Compliance achieved	14-JUN-2022	Region	For 3Q2021. Data was in. kl
14755	53298	SOX	State Compliance achieved	14-JUN-2022	Region	For 3Q2021. Data was in. kl
14754	53300	SOX	State Compliance achieved	27-JAN-2022	Region	data for 4Q21 is in 1/27/2022.kl
14754	53302	SOX	State Compliance achieved	27-JAN-2022	Region	data for 4Q21 is in 1/27/2022.kl
14754	53301	SOX	State Compliance achieved	27-JAN-2022	Region	data for 4Q21 is in 1/27/2022.kl
14754	53303	SOX	State Compliance achieved	27-JAN-2022	Region	data for 4Q21 is in 1/27/2022.kl
14754	53304	SOX	State Compliance achieved	27-JAN-2022	Region	data for 4Q21 is in 1/27/2022.kl
14751	53288	SOX	State Compliance achieved	26-JAN-2022	Region	Data was in. KL
14751	53289	SOX	State Compliance achieved	26-JAN-2022	Region	Data was in. KL
14751	53287	SOX	State Compliance achieved	26-JAN-2022	Region	Data was in. KL
14751	53286	SOX	State Compliance achieved	26-JAN-2022	Region	Data was in. KL
14751	53285	SOX	State Compliance achieved	26-JAN-2022	Region	Data was in. KL
14750	53282	SOX	State Compliance achieved	07-JAN-2022	Region	-
14750	53281	SOX	State Compliance achieved	07-JAN-2022	Region	-
14750	53280	SOX	State Compliance achieved	07-JAN-2022	Region	-
14750	53279	SOX	State Compliance achieved	07-JAN-2022	Region	-
14750	53278	SOX	State Compliance achieved	07-JAN-2022	Region	-
14750	53277	SOX	State Compliance achieved	07-JAN-2022	Region	-
14750	53271	SOX	State Compliance achieved	07-JAN-2022	Region	-
14750	53270	SOX	State Compliance achieved	07-JAN-2022	Region	-
14750	53266	SOX	State Compliance achieved	07-JAN-2022	Region	-
14750	53292	SOX	State Compliance achieved	07-JAN-2022	Region	-
14719	53209	SOX	State Compliance achieved	21-FEB-2017	Region	-
14716	53212	SOX	State Compliance achieved	09-MAR-2016	Region	-
14716	53211	SOX	State Compliance achieved	09-MAR-2016	Region	-
14716	53210	SOX	State Compliance achieved	09-MAR-2016	Region	-
14711	53208	SOX	State Compliance achieved	05-NOV-2013	Region	-
14708	53207	SOX	State Compliance achieved	05-MAR-2013	Region	-

1 - 31 of 31

All Facilities

Facility Name	Facility ID	Is Source	Facility Type Description	Water Type Description	Availability Description	Facility Activity Status
LAKE SAKAKAWEA (MISSOURI RVR)	10809	Yes	Intake	Surface water	Permanent	Active
TWIN BUTTES WATER SYSTEM	11095	No	Distribution System/Zone	-	-	Active
TWIN BUTTES WATER SYSTEM	11225	No	Other	-	-	Inactive
STEEL STANDPIPE STORAGE TANK (206K)	12457	No	Storage	-	-	Active
CONTACT BASIN	13099	No	Storage	-	-	Active
CLEARWELL	13100	No	Storage	-	-	Active
WATER TOWER, TANK #1	12091	No	Storage	-	-	Inactive
UNDERGROUND TANK #2	12092	No	Storage	-	-	Inactive
UNDERGROUND TANK #3	12093	No	Storage	-	-	Inactive
TWIN BUTTES TREATMENT	12900	No	Treatment Plant	-	-	Active
TWIN BUTTES TREATMENT	11329	No	Treatment Plant	-	-	Inactive

1 - 11 of 11

Treatment Processes

Facility Name	Facility ID	Treatment Process	Treatment Objective
TWIN BUTTES TREATMENT	11329	Filtration, Rapid Sand	Particulate removal
TWIN BUTTES TREATMENT	11329	Hypochlorination, Post	Disinfection
TWIN BUTTES TREATMENT	11329	Flocculation	Particulate removal
TWIN BUTTES TREATMENT	11329	Sedimentation	Particulate removal
TWIN BUTTES TREATMENT	11329	Coagulation	Particulate removal
TWIN BUTTES TREATMENT	12900	Hypochlorination, Post	Disinfection
TWIN BUTTES TREATMENT	12900	Flocculation	Particulate removal
TWIN BUTTES TREATMENT	12900	Coagulation	Particulate removal
TWIN BUTTES TREATMENT	12900	Filtration, Ultrafiltration	Particulate removal

1 - 9 of 9

For more information on a Water System:
Ask the operators of your water system, contact your primacy agency or file a Freedom of Information Act (FOIA) request.
Drinking water in general: Find out more about your drinking water web site or call the Safe Drinking Water Hotline (1-800-426-4791). EPA has also prepared a table about various regulated drinking water contaminants.
Tools for accessing EPA drinking water data: Safe Drinking Water Information System (SDWIS) Federal Reporting Services and Drinking Water Performance and Results Report.
Research Data: As well as monitoring the levels of drinking water contaminants for which EPA has set standards, EPA, states, and water systems also carry out studies of contaminants that may need to be regulated in the future. For more information about these contaminants, please see the National Contaminant Occurrence Database.

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