Safe Drinking Water Information System (SDWIS) Federal Reporting Services

Your Drinking Water Query results from SDWIS Fed Reporting Services

PWS ID	NN3503029
PWS Name	Standing Rock NTUA
PWS Type	Community water system
Owner Type	Tribal Government
Primary Source	Ground water
Primacy Type	Tribal
Is Wholesaler?	Yes
Population Served	739
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, Source Water (GWR)	Ground Water Rule	E. COLI	350302934301482023	Returned to Compliance	01-AUG-2023	-	No
MR	Monitoring, Routine (IDSE)	Stage 2 Disinfectants and Disinfection Byproducts Rule	Total Haloacetic Acids (HAA5)	350302930245612020	Returned to Compliance	01-JAN-2020	31-DEC-2020	No
MR	Monitoring, Routine (IDSE)	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	350302930295012020	Returned to Compliance	01-JAN-2020	31-DEC-2020	No
Other	Sample Siting Plan Errors (RTCR)	Revised Total Coliform Rule	Revised Total Coliform Rule	35030295A800042016	Open	01-APR-2016	-	No
MR	Failure Submit IDSE/Subpart V Plan Rpt	Stage 2 Disinfectants and Disinfection Byproducts Rule	Stage 2 Disinfectants and Disinfection Byproducts Rule	3503029350600102013	Open	01-OCT-2013	-	No
MR	Monitoring, Routine Major (TCR)	Total Coliform Rule	Coliform (TCR)	3503029233100122012	Returned to Compliance	01-DEC-2012	31-DEC-2012	No
MR	Monitoring, Routine Major (TCR)	Total Coliform Rule	Coliform (TCR)	3503029233100112012	Returned to Compliance	01-NOV-2012	30-NOV-2012	No
MR	Monitoring, Routine Major (TCR)	Total Coliform Rule	Coliform (TCR)	350302923310062010	Returned to Compliance	01-JUN-2010	30-JUN-2010	No
MR	Monitoring, Regular	Nitrate Rule	Nitrite	350302903104112010	Returned to Compliance	01-JAN-2010	31-DEC-2010	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	ETHYLENE DIBROMIDE	350302903294612008	Returned to Compliance	01-JAN-2008	31-DEC-2010	No
MR	Monitoring, Regular	Inorganic Chemicals	Antimony, Total	350302903107412008	Returned to Compliance	01-JAN-2008	31-DEC-2010	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Styrene	350302903299612008	Returned to Compliance	01-JAN-2008	31-DEC-2010	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Ethylbenzene	350302903299212008	Returned to Compliance	01-JAN-2008	31-DEC-2010	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Toluene	350302903299112008	Returned to Compliance	01-JAN-2008	31-DEC-2010	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Benzene	350302903299012008	Returned to Compliance	01-JAN-2008	31-DEC-2010	No
MR	Monitoring, Regular	Volatile Organic Chemicals	CHLOROBENZENE	350302903298912008	Returned to Compliance	01-JAN-2008	31-DEC-2010	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Tetrachloroethylene	350302903298712008	Returned to Compliance	01-JAN-2008	31-DEC-2010	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,1,2-Trichloroethane	350302903298512008	Returned to Compliance	01-JAN-2008	31-DEC-2010	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Trichloroethylene	350302903298412008	Returned to Compliance	01-JAN-2008	31-DEC-2010	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,2-Dichloropropane	350302903298312008	Returned to Compliance	01-JAN-2008	31-DEC-2010	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Carbon tetrachloride	350302903298212008	Returned to Compliance	01-JAN-2008	31-DEC-2010	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,1,1-Trichloroethane	350302903298112008	Returned to Compliance	01-JAN-2008	31-DEC-2010	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,2-Dichloroethane	350302903298012008	Returned to Compliance	01-JAN-2008	31-DEC-2010	No
MR	Monitoring, Regular	Volatile Organic Chemicals	trans-1,2-Dichloroethylene	350302903297912008	Returned to Compliance	01-JAN-2008	31-DEC-2010	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,1-Dichloroethylene	350302903297712008	Returned to Compliance	01-JAN-2008	31-DEC-2010	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Vinyl chloride	350302903297612008	Returned to Compliance	01-JAN-2008	31-DEC-2010	No
MR	Monitoring, Regular	Volatile Organic Chemicals	p-Dichlorobenzene	350302903296912008	Returned to Compliance	01-JAN-2008	31-DEC-2010	No
MR	Monitoring, Regular	Volatile Organic Chemicals	o-Dichlorobenzene	350302903296812008	Returned to Compliance	01-JAN-2008	31-DEC-2010	No
MR	Monitoring, Regular	Volatile Organic Chemicals	DICHLOROMETHANE	350302903296412008	Returned to Compliance	01-JAN-2008	31-DEC-2010	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Chlordane	350302903295912008	Returned to Compliance	01-JAN-2008	31-DEC-2010	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Xylenes, Total	350302903295512008	Returned to Compliance	01-JAN-2008	31-DEC-2010	No
MR	Monitoring, Regular	Inorganic Chemicals	Chromium	350302903102012008	Returned to Compliance	01-JAN-2008	31-DEC-2010	No
MR	Monitoring, Regular	Volatile Organic Chemicals	cis-1,2-Dichloroethylene	350302903238012008	Returned to Compliance	01-JAN-2008	31-DEC-2010	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,2,4-Trichlorobenzene	350302903237812008	Returned to Compliance	01-JAN-2008	31-DEC-2010	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Pentachlorophenol	350302903232612008	Returned to Compliance	01-JAN-2008	31-DEC-2010	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Benzo(a)pyrene	350302903230612008	Returned to Compliance	01-JAN-2008	31-DEC-2010	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	HEXACHLOROBENZENE	350302903227412008	Returned to Compliance	01-JAN-2008	31-DEC-2010	No
MR	Monitoring, Regular	Inorganic Chemicals	Selenium	350302903104512008	Returned to Compliance	01-JAN-2008	31-DEC-2010	No
MR	Monitoring, Regular	Inorganic Chemicals	Mercury	350302903103512008	Returned to Compliance	01-JAN-2008	31-DEC-2010	No
MR	Monitoring, Regular	Inorganic Chemicals	Fluoride	350302903102512008	Returned to Compliance	01-JAN-2008	31-DEC-2010	No
MR	Monitoring, Regular	Inorganic Chemicals	CYANIDE	350302903102412008	Returned to Compliance	01-JAN-2008	31-DEC-2010	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	2,4,5-TP	350302903211012008	Returned to Compliance	01-JAN-2008	31-DEC-2010	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	2,4-D	350302903210512008	Returned to Compliance	01-JAN-2008	31-DEC-2010	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Total Polychlorinated Biphenyls (PCB)	350302903238312008	Returned to Compliance	01-JAN-2008	31-DEC-2010	No
MR	Monitoring, Regular	Inorganic Chemicals	Cadmium	350302903101512008	Returned to Compliance	01-JAN-2008	31-DEC-2010	No
MR	Monitoring, Regular	Inorganic Chemicals	Barium	350302903101012008	Returned to Compliance	01-JAN-2008	31-DEC-2010	No
MR	Monitoring, Regular	Arsenic Rule	Arsenic	350302903100512008	Returned to Compliance	01-JAN-2008	31-DEC-2010	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Heptachlor epoxide	350302903206712008	Returned to Compliance	01-JAN-2008	31-DEC-2010	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Heptachlor	350302903206512008	Returned to Compliance	01-JAN-2008	31-DEC-2010	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	2,3,7,8-TCDD	350302903206312008	Returned to Compliance	01-JAN-2008	31-DEC-2010	No

1 - 50 of 76

Enforcement Actions

Latest Enforcement ID	Associated To Violation ID	Enforcement Action Type Code	Enforcement Action Description	Enforcement Date	Originator Description	Enforcement Comment
3503029FJ08282441513	35030295A800042016	SFJ	State Formal Notice of Violation issued	28-AUG-2024	State	NOV issued for failure to prepare a site sampling plan for total coliform.
3503029OX03142440857	350302934301482023	SOX	State Compliance achieved	14-MAR-2024	State	2023 August GWR Monitoring. Return To Compliance. Source sample collected 03/14/2024.
3503029OX08252138862	350302930295012020	SOX	State Compliance achieved	25-AUG-2021	State	2020 DBPs Stage 2 M/R. Return To Compliance. Full sample sets collected 08/25/2021.
3503029OX08252138863	350302930245612020	SOX	State Compliance achieved	25-AUG-2021	State	2020 DBPs Stage 2 M/R. Return To Compliance. Full sample sets collected 08/25/2021.
3503029FJ08281733449	3503029350600102013	SFJ	State Formal Notice of Violation issued	28-AUG-2017	State	NOV issued for failure to submit a DBP site sampling plan.
3503029OX01111323620	3503029233100122012	SOX	State Compliance achieved	11-JAN-2013	State	2012 Dec TCR M/R. RTC, received NTUA TCR results on 01-11-2013.
3503029OX12111223702	3503029233100112012	SOX	State Compliance achieved	11-DEC-2012	State	2012 Nov TCR M/R. RTC, received NTUA TCR results on 12-11-2012.
3503029OX02211219473	350302903101512008	SOX	State Compliance achieved	21-FEB-2012	State	RTC, IOC, VOC, SOC waivers granted. The next set of samples are due during 2011-2013.
3503029OX02211219474	350302903102012008	SOX	State Compliance achieved	21-FEB-2012	State	RTC, IOC, VOC, SOC waivers granted. The next set of samples are due during 2011-2013.
3503029OX02211219480	350302903102412008	SOX	State Compliance achieved	21-FEB-2012	State	RTC, IOC, VOC, SOC waivers granted. The next set of samples are due during 2011-2013.
3503029OX02211219475	350302903102512008	SOX	State Compliance achieved	21-FEB-2012	State	RTC, IOC, VOC, SOC waivers granted. The next set of samples are due during 2011-2013.
3503029OX02211219476	350302903103512008	SOX	State Compliance achieved	21-FEB-2012	State	RTC, IOC, VOC, SOC waivers granted. The next set of samples are due during 2011-2013.
3503029OX02211219477	350302903104512008	SOX	State Compliance achieved	21-FEB-2012	State	RTC, IOC, VOC, SOC waivers granted. The next set of samples are due during 2011-2013.
3503029OX02211219478	350302903107412008	SOX	State Compliance achieved	21-FEB-2012	State	RTC, IOC, VOC, SOC waivers granted. The next set of samples are due during 2011-2013.
3503029OX02211219479	350302903107512008	SOX	State Compliance achieved	21-FEB-2012	State	RTC, IOC, VOC, SOC waivers granted. The next set of samples are due during 2011-2013.
3503029OX02211219481	350302903108512008	SOX	State Compliance achieved	21-FEB-2012	State	RTC, IOC, VOC, SOC waivers granted. The next set of samples are due during 2011-2013.
3503029OX02211219525	350302903200512008	SOX	State Compliance achieved	21-FEB-2012	State	RTC, IOC, VOC, SOC waivers granted. The next set of samples are due during 2011-2013.
3503029OX02211219512	350302903201012008	SOX	State Compliance achieved	21-FEB-2012	State	RTC, IOC, VOC, SOC waivers granted. The next set of samples are due during 2011-2013.
3503029OX02211219513	350302903201512008	SOX	State Compliance achieved	21-FEB-2012	State	RTC, IOC, VOC, SOC waivers granted. The next set of samples are due during 2011-2013.
3503029OX02211219516	350302903202012008	SOX	State Compliance achieved	21-FEB-2012	State	RTC, IOC, VOC, SOC waivers granted. The next set of samples are due during 2011-2013.
3503029OX02211219519	350302903203112008	SOX	State Compliance achieved	21-FEB-2012	State	RTC, IOC, VOC, SOC waivers granted. The next set of samples are due during 2011-2013.
3503029OX02211219523	350302903203212008	SOX	State Compliance achieved	21-FEB-2012	State	RTC, IOC, VOC, SOC waivers granted. The next set of samples are due during 2011-2013.
3503029OX02211219524	350302903203312008	SOX	State Compliance achieved	21-FEB-2012	State	RTC, IOC, VOC, SOC waivers granted. The next set of samples are due during 2011-2013.
3503029OX02211219526	350302903203412008	SOX	State Compliance achieved	21-FEB-2012	State	RTC, IOC, VOC, SOC waivers granted. The next set of samples are due during 2011-2013.
3503029OX02211219520	350302903203512008	SOX	State Compliance achieved	21-FEB-2012	State	RTC, IOC, VOC, SOC waivers granted. The next set of samples are due during 2011-2013.
3503029OX02211219529	350302903203612008	SOX	State Compliance achieved	21-FEB-2012	State	RTC, IOC, VOC, SOC waivers granted. The next set of samples are due during 2011-2013.
3503029OX02211219531	350302903203712008	SOX	State Compliance achieved	21-FEB-2012	State	RTC, IOC, VOC, SOC waivers granted. The next set of samples are due during 2011-2013.
3503029OX02211219521	350302903203912008	SOX	State Compliance achieved	21-FEB-2012	State	RTC, IOC, VOC, SOC waivers granted. The next set of samples are due during 2011-2013.
3503029OX02211219530	350302903204012008	SOX	State Compliance achieved	21-FEB-2012	State	RTC, IOC, VOC, SOC waivers granted. The next set of samples are due during 2011-2013.
3503029OX02211219522	350302903204112008	SOX	State Compliance achieved	21-FEB-2012	State	RTC, IOC, VOC, SOC waivers granted. The next set of samples are due during 2011-2013.
3503029OX02211219528	350302903204212008	SOX	State Compliance achieved	21-FEB-2012	State	RTC, IOC, VOC, SOC waivers granted. The next set of samples are due during 2011-2013.
3503029OX02211219505	350302903204612008	SOX	State Compliance achieved	21-FEB-2012	State	RTC, IOC, VOC, SOC waivers granted. The next set of samples are due during 2011-2013.
3503029OX02211219504	350302903205012008	SOX	State Compliance achieved	21-FEB-2012	State	RTC, IOC, VOC, SOC waivers granted. The next set of samples are due during 2011-2013.
3503029OX02211219503	350302903205112008	SOX	State Compliance achieved	21-FEB-2012	State	RTC, IOC, VOC, SOC waivers granted. The next set of samples are due during 2011-2013.
3503029OX02211219532	350302903206312008	SOX	State Compliance achieved	21-FEB-2012	State	RTC, IOC, VOC, SOC waivers granted. The next set of samples are due during 2011-2013.
3503029OX02211219510	350302903206512008	SOX	State Compliance achieved	21-FEB-2012	State	RTC, IOC, VOC, SOC waivers granted. The next set of samples are due during 2011-2013.
3503029OX02211219511	350302903206712008	SOX	State Compliance achieved	21-FEB-2012	State	RTC, IOC, VOC, SOC waivers granted. The next set of samples are due during 2011-2013.
3503029OX02211219508	350302903210512008	SOX	State Compliance achieved	21-FEB-2012	State	RTC, IOC, VOC, SOC waivers granted. The next set of samples are due during 2011-2013.
3503029OX02211219517	350302903211012008	SOX	State Compliance achieved	21-FEB-2012	State	RTC, IOC, VOC, SOC waivers granted. The next set of samples are due during 2011-2013.
3503029OX02211219527	350302903227412008	SOX	State Compliance achieved	21-FEB-2012	State	RTC, IOC, VOC, SOC waivers granted. The next set of samples are due during 2011-2013.
3503029OX02211219518	350302903230612008	SOX	State Compliance achieved	21-FEB-2012	State	RTC, IOC, VOC, SOC waivers granted. The next set of samples are due during 2011-2013.
3503029OX02211219515	350302903232612008	SOX	State Compliance achieved	21-FEB-2012	State	RTC, IOC, VOC, SOC waivers granted. The next set of samples are due during 2011-2013.
3503029OX02211219501	350302903237812008	SOX	State Compliance achieved	21-FEB-2012	State	RTC, IOC, VOC, SOC waivers granted. The next set of samples are due during 2011-2013.
3503029OX02211219490	350302903238012008	SOX	State Compliance achieved	21-FEB-2012	State	RTC, IOC, VOC, SOC waivers granted. The next set of samples are due during 2011-2013.
3503029OX02211219514	350302903238312008	SOX	State Compliance achieved	21-FEB-2012	State	RTC, IOC, VOC, SOC waivers granted. The next set of samples are due during 2011-2013.
3503029OX02211219507	350302903293112008	SOX	State Compliance achieved	21-FEB-2012	State	RTC, IOC, VOC, SOC waivers granted. The next set of samples are due during 2011-2013.
3503029OX02211219509	350302903294612008	SOX	State Compliance achieved	21-FEB-2012	State	RTC, IOC, VOC, SOC waivers granted. The next set of samples are due during 2011-2013.
3503029OX02211219499	350302903295512008	SOX	State Compliance achieved	21-FEB-2012	State	RTC, IOC, VOC, SOC waivers granted. The next set of samples are due during 2011-2013.
3503029OX02211219506	350302903295912008	SOX	State Compliance achieved	21-FEB-2012	State	RTC, IOC, VOC, SOC waivers granted. The next set of samples are due during 2011-2013.
3503029OX02211219500	350302903296412008	SOX	State Compliance achieved	21-FEB-2012	State	RTC, IOC, VOC, SOC waivers granted. The next set of samples are due during 2011-2013.

1 - 50 of 75

All Facilities

Facility Name	Facility ID	Is Source	Facility Type Description	Water Type Description	Availability Description	Facility Activity Status
15-0586 (STANDING ROCK 1)	3503029GW001	Yes	Well	Ground water	Permanent	Active
15-0586 Entry Point (Standing Rock 1)	3503029EP001	No	Common Headers	-	-	Active
NN3503029 NTUA Standing Rock Distribution System	3503029DS001	No	Distribution System/Zone	-	-	Active
Standing Rock North	3503029ST001	No	Storage	-	-	Active
Standing Rock HUD (1A)	3503029ST002	No	Storage	-	-	Active
Standing Rock South	3503029ST003	No	Storage	-	-	Active
15-0586 Treatment (Standing Rock 1)	3503029TP001	No	Treatment Plant	-	-	Active

1 - 7 of 7

Treatment Processes

Facility Name	Facility ID	Treatment Process	Treatment Objective
15-0586 Treatment (Standing Rock 1)	3503029TP001	Gaseous Chlorination, Post	Disinfection

1 - 1 of 1

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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