Safe Drinking Water Information System (SDWIS) Federal Reporting Services

Your Drinking Water Query results from SDWIS Fed Reporting Services

PWS ID	093200168
PWS Name	Nixon
PWS Type	Community water system
Owner Type	Tribal Government
Primary Source	Ground water
Primacy Type	Tribal
Is Wholesaler?	No
Population Served	800
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
MON	Monitoring, Routine (RTCR)	Revised Total Coliform Rule	Revised Total Coliform Rule	32001683A800072025	Returned to Compliance	01-JUL-2025	31-JUL-2025	No
MR	Monitoring and Reporting (DBP)	Stage 1 Disinfectants and Disinfection Byproducts Rule	Chlorine	320016827099972025	Returned to Compliance	01-JUL-2025	30-SEP-2025	No
MR	Monitoring, Regular	Nitrate Rule	Nitrate	320016803104012025	Known	01-JAN-2025	31-DEC-2025	No
MR	Monitoring and Reporting (DBP)	Stage 1 Disinfectants and Disinfection Byproducts Rule	Chlorine	320016827099912025	Returned to Compliance	01-JAN-2025	31-MAR-2025	No
RPT	Notification, Known or Potential LSL	Lead and Copper Rule Revisions	LEAD AND COPPER RULE REVISIONS	32001684H5200112024	Open	16-NOV-2024	-	No
MR	Monitoring and Reporting (DBP)	Stage 1 Disinfectants and Disinfection Byproducts Rule	Chlorine	3200168270999102024	Returned to Compliance	01-OCT-2024	31-DEC-2024	No
MR	Monitoring and Reporting (DBP)	Stage 1 Disinfectants and Disinfection Byproducts Rule	Chlorine	320016827099972024	Returned to Compliance	01-JUL-2024	30-SEP-2024	No
MR	Monitoring and Reporting (DBP)	Stage 1 Disinfectants and Disinfection Byproducts Rule	Chlorine	320016827099942024	Returned to Compliance	01-APR-2024	30-JUN-2024	No
Other	Public Notification Violation for NPDWR Violation	Public Notice Rule and Revised PN Rule	Public Notice	320016875750012024	Returned to Compliance	01-JAN-2024	-	No
MR	Monitoring and Reporting (DBP)	Stage 1 Disinfectants and Disinfection Byproducts Rule	Chlorine	320016827099912024	Returned to Compliance	01-JAN-2024	31-MAR-2024	No
MON	Monitoring, Routine (RTCR)	Revised Total Coliform Rule	Revised Total Coliform Rule	32001683A800012024	Returned to Compliance	01-JAN-2024	31-JAN-2024	No
Other	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	Consumer Confidence Rule	320016871700072023	Returned to Compliance	01-JUL-2023	-	No
MR	Monitoring and Reporting (DBP)	Stage 1 Disinfectants and Disinfection Byproducts Rule	Chlorine	320016827099942023	Returned to Compliance	01-APR-2023	30-JUN-2023	No
Other	Public Notification Violation for NPDWR Violation	Public Notice Rule and Revised PN Rule	Public Notice	320016875750042023	Returned to Compliance	01-APR-2023	-	No
MON	Monitoring, Routine (RTCR)	Revised Total Coliform Rule	Revised Total Coliform Rule	32001683A800042023	Returned to Compliance	01-APR-2023	30-APR-2023	No
MR	Monitoring and Reporting (DBP)	Stage 2 Disinfectants and Disinfection Byproducts Rule	Total Haloacetic Acids (HAA5)	320016827245612023	Returned to Compliance	01-JAN-2023	31-DEC-2023	No
MR	Monitoring and Reporting (DBP)	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	320016827295012023	Returned to Compliance	01-JAN-2023	31-DEC-2023	No
MON	Monitoring, Routine (RTCR)	Revised Total Coliform Rule	Revised Total Coliform Rule	32001683A8000112022	Returned to Compliance	01-NOV-2022	30-NOV-2022	No
MR	Monitoring and Reporting (DBP)	Stage 1 Disinfectants and Disinfection Byproducts Rule	Chlorine	3200168270999102022	Returned to Compliance	01-OCT-2022	31-DEC-2022	No
Other	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	Consumer Confidence Rule	320016871700072022	Returned to Compliance	01-JUL-2022	-	No
MR	Monitoring, Routine (IDSE)	Stage 2 Disinfectants and Disinfection Byproducts Rule	Total Haloacetic Acids (HAA5)	320016830245612022	Returned to Compliance	01-JAN-2022	31-DEC-2022	No
MR	Monitoring, Routine (IDSE)	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	320016830295012022	Returned to Compliance	01-JAN-2022	31-DEC-2022	No
Other	Public Notification Violation for NPDWR Violation	Public Notice Rule and Revised PN Rule	Public Notice	32001687575001220210	Returned to Compliance	17-DEC-2021	-	No
TT	Failure To Address Deficiency	Ground Water Rule	Groundwater Rule	32001684507001220210	Returned to Compliance	17-DEC-2021	-	Yes
TT	Failure To Address Deficiency	Ground Water Rule	Groundwater Rule	32001684507001220211	Open	17-DEC-2021	-	Yes
Other	Public Notification Violation for NPDWR Violation	Public Notice Rule and Revised PN Rule	Public Notice	32001687575001220211	Returned to Compliance	17-DEC-2021	-	No
Other	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	Consumer Confidence Rule	320016871700072021	Returned to Compliance	01-JUL-2021	-	No
MON	Monitoring, Routine (RTCR)	Revised Total Coliform Rule	Revised Total Coliform Rule	32001683A800042021	Returned to Compliance	01-APR-2021	30-APR-2021	No
Other	Public Notification Violation for NPDWR Violation	Public Notice Rule and Revised PN Rule	Public Notice	320016875750042021	Returned to Compliance	01-APR-2021	-	No
MR	Monitoring and Reporting (DBP)	Stage 1 Disinfectants and Disinfection Byproducts Rule	Chlorine	320016827099942021	Returned to Compliance	01-APR-2021	30-JUN-2021	No
Other	Public Notification Violation for NPDWR Violation	Public Notice Rule and Revised PN Rule	Public Notice	320016875750032021	Returned to Compliance	01-MAR-2021	-	No
MON	Monitoring, Routine (RTCR)	Revised Total Coliform Rule	Revised Total Coliform Rule	32001683A800032021	Returned to Compliance	01-MAR-2021	31-MAR-2021	No
MR	Monitoring, Routine (IDSE)	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	320016830295012021	Returned to Compliance	01-JAN-2021	31-DEC-2021	No
MR	Monitoring, Regular	Nitrate Rule	Nitrate	320016803104012021	Returned to Compliance	01-JAN-2021	31-DEC-2021	No
MR	Monitoring, Routine (IDSE)	Stage 2 Disinfectants and Disinfection Byproducts Rule	Total Haloacetic Acids (HAA5)	320016830245612021	Returned to Compliance	01-JAN-2021	31-DEC-2021	No
MR	Monitoring, Regular	Radionuclides and Revised Rad Rule	Gross Alpha, Excl. Radon and U	320016803400012020	Known	01-JAN-2020	31-DEC-2025	No
MR	Monitoring, Regular	Radionuclides and Revised Rad Rule	Combined Radium (-226 and -228)	320016803401012020	Known	01-JAN-2020	31-DEC-2025	No
MR	Monitoring, Regular	Radionuclides and Revised Rad Rule	Combined Uranium	320016803400612020	Known	01-JAN-2020	31-DEC-2025	No
MR	Follow-up Or Routine LCR Tap M/R	Lead and Copper Rule	Lead and Copper Rule	320016852500012020	Returned to Compliance	01-JAN-2020	-	No
MR	Monitoring, Regular	Radionuclides and Revised Rad Rule	Gross Alpha, Excl. Radon and U	320016803400012017	Returned to Compliance	01-JAN-2017	31-DEC-2022	No
MR	Monitoring, Regular	Radionuclides and Revised Rad Rule	Combined Uranium	320016803400612017	Returned to Compliance	01-JAN-2017	31-DEC-2022	No
MR	Monitoring, Regular	Radionuclides and Revised Rad Rule	Combined Radium (-226 and -228)	320016803401012017	Returned to Compliance	01-JAN-2017	31-DEC-2022	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,2,4-Trichlorobenzene	320016803237812014	Returned to Compliance	01-JAN-2014	31-DEC-2019	No
MR	Monitoring, Regular	Volatile Organic Chemicals	cis-1,2-Dichloroethylene	320016803238012014	Returned to Compliance	01-JAN-2014	31-DEC-2019	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Styrene	320016803299612014	Returned to Compliance	01-JAN-2014	31-DEC-2019	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Ethylbenzene	320016803299212014	Returned to Compliance	01-JAN-2014	31-DEC-2019	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Toluene	320016803299112014	Returned to Compliance	01-JAN-2014	31-DEC-2019	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Benzene	320016803299012014	Returned to Compliance	01-JAN-2014	31-DEC-2019	No
MR	Monitoring, Regular	Volatile Organic Chemicals	CHLOROBENZENE	320016803298912014	Returned to Compliance	01-JAN-2014	31-DEC-2019	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Tetrachloroethylene	320016803298712014	Returned to Compliance	01-JAN-2014	31-DEC-2019	No

1 - 50 of 149

Enforcement Actions

Latest Enforcement ID	Associated To Violation ID	Enforcement Action Type Code	Enforcement Action Description	Enforcement Date	Originator Description	Enforcement Comment
3200168IA12022512321	32001683A800072025	EIA	Federal Violation/Reminder Notice	02-DEC-2025	Region	Informal Violation Report, look for SDWIS-Fed compliance rate after this action to determine change in behavior.
3200168OX08282512289	320016827099972025	EOX	Federal Compliance achieved	28-AUG-2025	Region	Subsequent reporting of required results.
3200168OX06262512200	320016875750042021	EOX	Federal Compliance achieved	26-JUN-2025	Region	Distributed 2020 - 2024 CCR.
3200168OX06262512200	320016875750032021	EOX	Federal Compliance achieved	26-JUN-2025	Region	Distributed 2020 - 2024 CCR.
3200168OX06262512200	320016875750012024	EOX	Federal Compliance achieved	26-JUN-2025	Region	Distributed 2020 - 2024 CCR.
3200168OX06262512200	320016871700072023	EOX	Federal Compliance achieved	26-JUN-2025	Region	Distributed 2020 - 2024 CCR.
3200168OX06262512200	320016871700072022	EOX	Federal Compliance achieved	26-JUN-2025	Region	Distributed 2020 - 2024 CCR.
3200168OX06262512200	320016871700072021	EOX	Federal Compliance achieved	26-JUN-2025	Region	Distributed 2020 - 2024 CCR.
3200168IA06112512166	320016827099912025	EIA	Federal Violation/Reminder Notice	11-JUN-2025	Region	Informal Violation Report, look for SDWIS-Fed compliance rate after this action to determine change in behavior.
3200168OX04302512198	3200168270999102024	EOX	Federal Compliance achieved	30-APR-2025	Region	Resumed reporting chlorine residual.
3200168OX10222411952	320016827099972024	EOX	Federal Compliance achieved	22-OCT-2024	Region	Resumed chlorine residual monitoring.
3200168OX08302411924	320016827099912024	EOX	Federal Compliance achieved	30-AUG-2024	Region	Took chlorine residual in August.
3200168OX08302411923	320016827099942024	EOX	Federal Compliance achieved	30-AUG-2024	Region	Took chlorine residual in August.
3200168OX08162411953	320016827245612023	EOX	Federal Compliance achieved	16-AUG-2024	Region	DBPs taken 8/16/2024.
3200168OX08162411952	320016830295012022	EOX	Federal Compliance achieved	16-AUG-2024	Region	DBPs taken 8/16/2024.
3200168OX08162411952	320016830245612022	EOX	Federal Compliance achieved	16-AUG-2024	Region	DBPs taken 8/16/2024.
3200168OX08162411953	320016827295012023	EOX	Federal Compliance achieved	16-AUG-2024	Region	DBPs taken 8/16/2024.
3200168OX07292411952	320016852500012020	EOX	Federal Compliance achieved	29-JUL-2024	Region	Lead and copper samples taken
3200168OX07112411952	320016830245612021	EOX	Federal Compliance achieved	11-JUL-2024	Region	Violations posted on 2023 CCR.
3200168OX07112411952	32001687575001220211	EOX	Federal Compliance achieved	11-JUL-2024	Region	Violations posted on 2023 CCR.
3200168OX07112411952	32001687575001220210	EOX	Federal Compliance achieved	11-JUL-2024	Region	Violations posted on 2023 CCR.
3200168OX07112411952	320016875750042023	EOX	Federal Compliance achieved	11-JUL-2024	Region	Violations posted on 2023 CCR.
3200168OX07112411952	320016830295012021	EOX	Federal Compliance achieved	11-JUL-2024	Region	Violations posted on 2023 CCR.
3200168OX02292411731	32001683A800012024	EOX	Federal Compliance achieved	29-FEB-2024	Region	Subsequent reporting of required results.
3200168OX06012311516	32001683A800042023	EOX	Federal Compliance achieved	01-JUN-2023	Region	Subsequent reporting of required results.
3200168OX06012311516	320016827099942023	EOX	Federal Compliance achieved	01-JUN-2023	Region	Subsequent reporting of required results.
3200168OX12122211401	32001683A8000112022	EOX	Federal Compliance achieved	12-DEC-2022	Region	Subsequent reporting of required results.
3200168OX12122211400	3200168270999102022	EOX	Federal Compliance achieved	12-DEC-2022	Region	Subsequent reporting of required results.
3200168OX11182211318	320016803104012021	EOX	Federal Compliance achieved	18-NOV-2022	Region	Subsequent reporting of required results.
3200168OX06172212133	32001684507001220210	EOX	Federal Compliance achieved	17-JUN-2022	Region	System obtained certified operator
3200168OX07142110896	320016827099942021	EOX	Federal Compliance achieved	14-JUL-2021	Region	Subsequent reporting of required results.
3200168OX05132110896	32001683A800042021	EOX	Federal Compliance achieved	13-MAY-2021	Region	Subsequent reporting of required results.
3200168OX05132110594	32001683A800032021	EOX	Federal Compliance achieved	13-MAY-2021	Region	Subsequent reporting of required results.
3200168OX04162098894	320016803237812014	EOX	Federal Compliance achieved	16-APR-2020	Region	Subsequent reporting of required results.
3200168OX04162098883	320016803238012014	EOX	Federal Compliance achieved	16-APR-2020	Region	Subsequent reporting of required results.
3200168OX04162098892	320016803295512014	EOX	Federal Compliance achieved	16-APR-2020	Region	Subsequent reporting of required results.
3200168OX04162098893	320016803296412014	EOX	Federal Compliance achieved	16-APR-2020	Region	Subsequent reporting of required results.
3200168OX04162098887	320016803296812014	EOX	Federal Compliance achieved	16-APR-2020	Region	Subsequent reporting of required results.
3200168OX04162098879	320016803296912014	EOX	Federal Compliance achieved	16-APR-2020	Region	Subsequent reporting of required results.
3200168OX04162098882	320016803297612014	EOX	Federal Compliance achieved	16-APR-2020	Region	Subsequent reporting of required results.
3200168OX04162098880	320016803297712014	EOX	Federal Compliance achieved	16-APR-2020	Region	Subsequent reporting of required results.
3200168OX04162098891	320016803297912014	EOX	Federal Compliance achieved	16-APR-2020	Region	Subsequent reporting of required results.
3200168OX04162098877	320016803298012014	EOX	Federal Compliance achieved	16-APR-2020	Region	Subsequent reporting of required results.
3200168OX04162098881	320016803298112014	EOX	Federal Compliance achieved	16-APR-2020	Region	Subsequent reporting of required results.
3200168OX04162098876	320016803298212014	EOX	Federal Compliance achieved	16-APR-2020	Region	Subsequent reporting of required results.
3200168OX04162098884	320016803298312014	EOX	Federal Compliance achieved	16-APR-2020	Region	Subsequent reporting of required results.
3200168OX04162098878	320016803298412014	EOX	Federal Compliance achieved	16-APR-2020	Region	Subsequent reporting of required results.
3200168OX04162098895	320016803298512014	EOX	Federal Compliance achieved	16-APR-2020	Region	Subsequent reporting of required results.
3200168OX04162098889	320016803298712014	EOX	Federal Compliance achieved	16-APR-2020	Region	Subsequent reporting of required results.
3200168OX04162098886	320016803298912014	EOX	Federal Compliance achieved	16-APR-2020	Region	Subsequent reporting of required results.

1 - 50 of 143

All Facilities

Facility Name	Facility ID	Is Source	Facility Type Description	Water Type Description	Availability Description	Facility Activity Status
North Well	3200168GW001	Yes	Well	Ground water	Permanent	Active
New South Well 2	3200168GW003	Yes	Well	Ground water	Permanent	Active
South Well	3200168GW002	Yes	Well	Ground water	Permanent	Active
Entry Point for North Well	3200168EP001	No	Common Headers	-	-	Active
Entry Point for South Well	3200168EP002	No	Common Headers	-	-	Active
PWS# 3200168 distribution system	3200168DS001	No	Distribution System/Zone	-	-	Active
Water Storage Tank	3200168ST001	No	Storage	-	-	Active
North Pumphouse	3200168TP001	No	Treatment Plant	-	-	Active
South Pumphouse	3200168TP002	No	Treatment Plant	-	-	Active

1 - 9 of 9

Treatment Processes

Facility Name	Facility ID	Treatment Process	Treatment Objective
North Pumphouse	3200168TP001	Hypochlorination, Post	Disinfection
South Pumphouse	3200168TP002	Hypochlorination, Post	Disinfection

1 - 2 of 2

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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