Safe Drinking Water Information System (SDWIS) Federal Reporting Services

Your Drinking Water Query results from SDWIS Fed Reporting Services

PWS ID	NN0400181
PWS Name	Tsehootsooi Middle School
PWS Type	Community water system
Owner Type	Local government
Primary Source	Ground water purchased
Primacy Type	Tribal
Is Wholesaler?	No
Population Served	875
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
RPT	Report Sample Result/Fail Monitor (RTCR)	Revised Total Coliform Rule	Revised Total Coliform Rule	04001814B800082025	Returned to Compliance	01-AUG-2025	-	No
RPT	Report Sample Result/Fail Monitor (RTCR)	Revised Total Coliform Rule	Revised Total Coliform Rule	04001814B800072025	Returned to Compliance	01-JUL-2025	-	No
RPT	Report Sample Result/Fail Monitor (RTCR)	Revised Total Coliform Rule	Revised Total Coliform Rule	04001814B800062025	Returned to Compliance	01-JUN-2025	-	No
RPT	Report Sample Result/Fail Monitor (RTCR)	Revised Total Coliform Rule	Revised Total Coliform Rule	04001814B800052025	Returned to Compliance	01-MAY-2025	-	No
RPT	Report Sample Result/Fail Monitor (RTCR)	Revised Total Coliform Rule	Revised Total Coliform Rule	04001814B800042025	Returned to Compliance	01-APR-2025	-	No
MON	Monitoring, Routine (RTCR)	Revised Total Coliform Rule	Revised Total Coliform Rule	04001813A800032025	Returned to Compliance	01-MAR-2025	31-MAR-2025	No
Other	Public Notification Violation for NPDWR Violation	Public Notice Rule and Revised PN Rule	Public Notice	040018175750032025	Open	01-MAR-2025	-	No
MR	Monitoring and Reporting (DBP)	Stage 1 Disinfectants and Disinfection Byproducts Rule	Chlorine	040018127099912025	Returned to Compliance	01-JAN-2025	31-MAR-2025	No
RPT	Report Sample Result/Fail Monitor (RTCR)	Revised Total Coliform Rule	Revised Total Coliform Rule	04001814B8000112024	Returned to Compliance	01-NOV-2024	-	No
Other	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	Consumer Confidence Rule	040018171700072024	Returned to Compliance	01-JUL-2024	-	No
MR	Follow-up Or Routine LCR Tap M/R	Lead and Copper Rule	Lead and Copper Rule	040018152500072024	Returned to Compliance	01-JUL-2024	-	No
RPT	Report Sample Result/Fail Monitor (RTCR)	Revised Total Coliform Rule	Revised Total Coliform Rule	04001814B800062024	Returned to Compliance	01-JUN-2024	-	No
RPT	Report Sample Result/Fail Monitor (RTCR)	Revised Total Coliform Rule	Revised Total Coliform Rule	04001814B800052024	Returned to Compliance	01-MAY-2024	-	No
RPT	Report Sample Result/Fail Monitor (RTCR)	Revised Total Coliform Rule	Revised Total Coliform Rule	04001814B800042024	Returned to Compliance	01-APR-2024	-	No
Other	Public Notification Violation for NPDWR Violation	Public Notice Rule and Revised PN Rule	Public Notice	040018175750032024	Open	01-MAR-2024	-	No
MON	Monitoring, Routine (RTCR)	Revised Total Coliform Rule	Revised Total Coliform Rule	04001813A800032024	Returned to Compliance	01-MAR-2024	31-MAR-2024	No
Other	Public Notification Violation for NPDWR Violation	Public Notice Rule and Revised PN Rule	Public Notice	040018175750022024	Open	01-FEB-2024	-	No
MON	Monitoring, Routine (RTCR)	Revised Total Coliform Rule	Revised Total Coliform Rule	04001813A800022024	Returned to Compliance	01-FEB-2024	29-FEB-2024	No
MR	Follow-up Or Routine LCR Tap M/R	Lead and Copper Rule	Lead and Copper Rule	040018152500012024	Returned to Compliance	01-JAN-2024	-	No
MR	Monitoring and Reporting (DBP)	Stage 1 Disinfectants and Disinfection Byproducts Rule	Chlorine	040018127099912024	Returned to Compliance	01-JAN-2024	31-MAR-2024	No
Other	Public Notification Violation for NPDWR Violation	Public Notice Rule and Revised PN Rule	Public Notice	040018175750012024	Open	01-JAN-2024	-	No
MON	Monitoring, Routine (RTCR)	Revised Total Coliform Rule	Revised Total Coliform Rule	04001813A800012024	Returned to Compliance	01-JAN-2024	31-JAN-2024	No
MON	Monitoring, Routine (RTCR)	Revised Total Coliform Rule	Revised Total Coliform Rule	04001813A8000112023	Returned to Compliance	01-NOV-2023	30-NOV-2023	No
MON	Monitoring, Routine (RTCR)	Revised Total Coliform Rule	Revised Total Coliform Rule	04001813A8000102023	Returned to Compliance	01-OCT-2023	31-OCT-2023	No
MR	Monitoring and Reporting (DBP)	Stage 1 Disinfectants and Disinfection Byproducts Rule	Chlorine	0400181270999102023	Returned to Compliance	01-OCT-2023	31-DEC-2023	No
RPT	Report Sample Result/Fail Monitor (RTCR)	Revised Total Coliform Rule	Revised Total Coliform Rule	04001814B800082023	Returned to Compliance	01-AUG-2023	-	No
Other	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	Consumer Confidence Rule	040018171700072023	Returned to Compliance	01-JUL-2023	-	No
RPT	Report Sample Result/Fail Monitor (RTCR)	Revised Total Coliform Rule	Revised Total Coliform Rule	04001814B800052023	Returned to Compliance	01-MAY-2023	-	No
MR	Monitoring and Reporting (DBP)	Stage 1 Disinfectants and Disinfection Byproducts Rule	Chlorine	040018127099942023	Returned to Compliance	01-APR-2023	30-JUN-2023	No
RPT	Report Sample Result/Fail Monitor (RTCR)	Revised Total Coliform Rule	Revised Total Coliform Rule	04001814B800022023	Returned to Compliance	01-FEB-2023	-	No
MR	Monitoring and Reporting (DBP)	Stage 1 Disinfectants and Disinfection Byproducts Rule	Chlorine	040018127099912023	Returned to Compliance	01-JAN-2023	31-MAR-2023	No
RPT	Report Sample Result/Fail Monitor (RTCR)	Revised Total Coliform Rule	Revised Total Coliform Rule	04001814B800012023	Returned to Compliance	01-JAN-2023	-	No
MON	Monitoring, Routine (RTCR)	Revised Total Coliform Rule	Revised Total Coliform Rule	04001813A8000122022	Returned to Compliance	01-DEC-2022	31-DEC-2022	No
Other	Public Notification Violation for NPDWR Violation	Public Notice Rule and Revised PN Rule	Public Notice	0400181757500122022	Returned to Compliance	01-DEC-2022	-	No
MR	Monitoring and Reporting (DBP)	Stage 1 Disinfectants and Disinfection Byproducts Rule	Chlorine	0400181270999102022	Returned to Compliance	01-OCT-2022	31-DEC-2022	No
RPT	Report Sample Result/Fail Monitor (RTCR)	Revised Total Coliform Rule	Revised Total Coliform Rule	04001814B800082022	Returned to Compliance	01-AUG-2022	-	No
MR	Monitoring and Reporting (DBP)	Stage 1 Disinfectants and Disinfection Byproducts Rule	Chlorine	040018127099972022	Returned to Compliance	01-JUL-2022	30-SEP-2022	No
Other	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	Consumer Confidence Rule	040018171700072022	Returned to Compliance	01-JUL-2022	-	No
MON	Monitoring, Routine (RTCR)	Revised Total Coliform Rule	Revised Total Coliform Rule	04001813A800042022	Returned to Compliance	01-APR-2022	30-APR-2022	No
MR	Monitoring and Reporting (DBP)	Stage 1 Disinfectants and Disinfection Byproducts Rule	Chlorine	040018127099942022	Returned to Compliance	01-APR-2022	30-JUN-2022	No
Other	Public Notification Violation for NPDWR Violation	Public Notice Rule and Revised PN Rule	Public Notice	040018175750042022	Returned to Compliance	01-APR-2022	-	No
MR	Monitoring and Reporting (DBP)	Stage 1 Disinfectants and Disinfection Byproducts Rule	Chlorine	040018127099912022	Returned to Compliance	01-JAN-2022	31-MAR-2022	No
MON	Monitoring, Routine (RTCR)	Revised Total Coliform Rule	Revised Total Coliform Rule	04001813A800082021	Returned to Compliance	01-AUG-2021	31-AUG-2021	No
MON	Monitoring, Routine (RTCR)	Revised Total Coliform Rule	Revised Total Coliform Rule	04001813A8000122020	Returned to Compliance	01-DEC-2020	31-DEC-2020	No
MON	Monitoring, Routine (RTCR)	Revised Total Coliform Rule	Revised Total Coliform Rule	04001813A8000112020	Returned to Compliance	01-NOV-2020	30-NOV-2020	No
MON	Monitoring, Routine (RTCR)	Revised Total Coliform Rule	Revised Total Coliform Rule	04001813A800072020	Returned to Compliance	01-JUL-2020	31-JUL-2020	No
Other	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	Consumer Confidence Rule	040018171700072020	Returned to Compliance	01-JUL-2020	-	No
MON	Monitoring, Routine (RTCR)	Revised Total Coliform Rule	Revised Total Coliform Rule	04001813A800062020	Returned to Compliance	01-JUN-2020	30-JUN-2020	No
MON	Monitoring, Routine (RTCR)	Revised Total Coliform Rule	Revised Total Coliform Rule	04001813A800052020	Returned to Compliance	01-MAY-2020	31-MAY-2020	No
MR	Monitoring, Routine (IDSE)	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	040018130295012020	Returned to Compliance	01-JAN-2020	31-DEC-2020	No

1 - 50 of 184

Enforcement Actions

Latest Enforcement ID	Associated To Violation ID	Enforcement Action Type Code	Enforcement Action Description	Enforcement Date	Originator Description	Enforcement Comment
0400181OX12122543090	04001815A800042016	SOX	State Compliance achieved	12-DEC-2025	State	RTCR site sample plan submitted and approved.
0400181FJ12052543030	040018175750032025	SFJ	State Formal Notice of Violation issued	05-DEC-2025	State	NOV issued for failure to prepare and post a public notice for failure to collect a March 2025 bactee sample.
0400181OX09172542941	04001814B800062025	SOX	State Compliance achieved	17-SEP-2025	State	RTC, sample results received for 4/1/25, 5/13/25 and 6/4/25 bactee.
0400181OX09172542772	04001813A800032025	SOX	State Compliance achieved	17-SEP-2025	State	RTC, sample results received on 09/17/2025.
0400181OX09172542942	04001814B800042025	SOX	State Compliance achieved	17-SEP-2025	State	RTC, sample results received for 4/1/25, 5/13/25 and 6/4/25 bactee.
0400181OX09172542940	04001814B800052025	SOX	State Compliance achieved	17-SEP-2025	State	RTC, sample results received for 4/1/25, 5/13/25 and 6/4/25 bactee.
0400181OX09042543206	04001814B800082025	SOX	State Compliance achieved	04-SEP-2025	State	RTC, bactee samples for September were collected.
0400181OX09042543205	04001814B800072025	SOX	State Compliance achieved	04-SEP-2025	State	RTC, bactee samples for September were collected.
0400181FJ06262542570	040018127099912025	SFJ	State Formal Notice of Violation issued	26-JUN-2025	State	NOV, PN required.
0400181OX02202542548	040018152500012024	SOX	State Compliance achieved	20-FEB-2025	State	2024 January-June Lead/Copper Monitoring. Return To Compliance. Full sample set collected 02/20/2025.
0400181OX02202542547	040018152500072024	SOX	State Compliance achieved	20-FEB-2025	State	2024 July-December Lead/Copper Monitoring. Return To Compliance. Full sample set collected 02/20/2025.
0400181OX01102541821	04001814B8000112024	SOX	State Compliance achieved	10-JAN-2025	State	November 2024 RTCR Reporting. Return-To-Compliance. Lab results submitted LATE 01/10/2025.
0400181OX12162441651	0400181757500122022	SOX	State Compliance achieved	16-DEC-2024	State	CCR received in lieu of Tier 3 PN
0400181OX12162441647	040018171700072022	SOX	State Compliance achieved	16-DEC-2024	State	CCR received for 2021, 2022, 2023
0400181OX12162441648	040018171700072023	SOX	State Compliance achieved	16-DEC-2024	State	CCR received for 2021, 2022, 2023
0400181OX12162441649	040018171700072024	SOX	State Compliance achieved	16-DEC-2024	State	CCR received for 2021, 2022, 2023
0400181OX12162441650	040018175750042022	SOX	State Compliance achieved	16-DEC-2024	State	CCR received in lieu of Tier 3 PN
0400181FJ08282441952	040018175750022024	SFJ	State Formal Notice of Violation issued	28-AUG-2024	State	NOV issued for failure to prepare a Tier 2 PN for failure to collect a routine bacti sample February 2024.
0400181FJ08282441953	040018175750032024	SFJ	State Formal Notice of Violation issued	28-AUG-2024	State	NOV issued for failure to prepar a Tier 2 PN for failure to collect a March 2024 bacti sample.
0400181FJ08282441951	040018175750012024	SFJ	State Formal Notice of Violation issued	28-AUG-2024	State	NOV issued for failure to prepare a Tier 2 PN for failure to collect routine bactis for January 2024.
0400181OX08092441185	04001814B800052024	SOX	State Compliance achieved	09-AUG-2024	State	May 2024 RTCR Reporting. Return-To-Compliance. Lab results submitted LATE 08/09/2024.
0400181OX08082441181	04001813A800012024	SOX	State Compliance achieved	08-AUG-2024	State	January 2024 RTCR Monitoring. Return-To-Compliance. Lab results submitted LATE 08/08/2024.
0400181OX08082441182	04001813A800022024	SOX	State Compliance achieved	08-AUG-2024	State	February 2024 RTCR Monitoring. Return-To-Compliance. Lab results submitted LATE 08/08/2024.
0400181OX08082441187	040018127099912024	SOX	State Compliance achieved	08-AUG-2024	State	January, February, March 2024 Chlorine Monitoring. Return-To-Compliance. Lab results submitted LATE 08/08/2024.
0400181OX08082441183	04001813A800032024	SOX	State Compliance achieved	08-AUG-2024	State	March 2024 RTCR Monitoring. Return-To-Compliance. Lab results submitted LATE 08/08/2024.
0400181OX08082441184	04001814B800042024	SOX	State Compliance achieved	08-AUG-2024	State	April 2024 RTCR Reporting. Return-To-Compliance. Lab results submitted LATE 08/08/2024.
0400181OX08082441186	04001814B800062024	SOX	State Compliance achieved	08-AUG-2024	State	April 2024 RTCR Reporting. Return-To-Compliance. Lab results submitted LATE 08/08/2024.
0400181OX12132340775	0400181270999102023	SOX	State Compliance achieved	13-DEC-2023	State	October, November 2023 Chlorine Residual Monitoring. Return To Compliance. Full sample set collected 12/13/2023.
0400181OX12132340774	04001813A8000112023	SOX	State Compliance achieved	13-DEC-2023	State	November 2023 RTCR Monitoring. Return To Compliance. Full sample set collected 12/13/2023.
0400181OX12132340773	04001813A8000102023	SOX	State Compliance achieved	13-DEC-2023	State	October 2023 RTCR Monitoring. Return To Compliance. Full sample set collected 12/13/2023.
0400181OX09202340416	04001814B800082023	SOX	State Compliance achieved	20-SEP-2023	State	2023 August RTCR Reporting. Return-To-Compliance. Lab results submitted LATE 09/20/2023.
0400181OX08102340294	04001814B800052023	SOX	State Compliance achieved	10-AUG-2023	State	2023 May RTCR Reporting. Return-To-Compliance. Lab results submitted LATE 08/10/2023.
0400181FJ06272340250	040018127099912023	SFJ	State Formal Notice of Violation issued	27-JUN-2023	State	NOV issued for failure to collect and report a chlorine residual, and to provide a public notice for the failure to collect a December 2022 bactee sample.
0400181OX06072340254	040018127099942022	SOX	State Compliance achieved	07-JUN-2023	State	2022 Apr, May, June Chlorine Monitoring. Return-To-Compliance. Chlorine residual collected 06/07/2023.
0400181OX06072340256	0400181270999102022	SOX	State Compliance achieved	07-JUN-2023	State	2022 Oct, Nov, Dec Chlorine Monitoring. Return-To-Compliance. Chlorine residual collected 06/07/2023.
0400181OX06072340253	040018127099912022	SOX	State Compliance achieved	07-JUN-2023	State	2022 Jan, Feb, Mar Chlorine Monitoring. Return-To-Compliance. Chlorine residual collected 06/07/2023.
0400181OX06072340295	040018127099942023	SOX	State Compliance achieved	07-JUN-2023	State	2023 April, May Chlorine Monitoring. Return-To-Compliance. Chlorine residual collected 06/07/2023.
0400181OX06072340255	040018127099972022	SOX	State Compliance achieved	07-JUN-2023	State	2022 July, Aug, Sept Chlorine Monitoring. Return-To-Compliance. Chlorine residual collected 06/07/2023.
0400181FJ05082340133	04001813A8000122022	SFJ	State Formal Notice of Violation issued	08-MAY-2023	State	NOV issued for failure to collect a December 2022 month set of bactee samples. PN required.
0400181OX04102340183	04001814B800012023	SOX	State Compliance achieved	10-APR-2023	State	2023 January Reporting. Return-To-Compliance. Lab results submitted LATE 04/10/2023.
0400181OX04102340182	04001814B800022023	SOX	State Compliance achieved	10-APR-2023	State	2023 February Reporting. Return-To-Compliance. Lab results submitted LATE 04/10/2023.
0400181OX09162239678	04001814B800082022	SOX	State Compliance achieved	16-SEP-2022	State	2022 August RTCR. Return To Compliance. Lab results received LATE 09/16/2022.
0400181OX05022239520	04001813A800042022	SOX	State Compliance achieved	02-MAY-2022	State	2022 April RTCR Monitoring. Return-To-Compliance. Full sample set collected 05/02/2022.
0400181OX09022138964	04001813A800082021	SOX	State Compliance achieved	02-SEP-2021	State	2021 August RTCR M/R. Return To Compliance. Full sample set collected 09/02/2021.
0400181OX08302138925	040018130295012020	SOX	State Compliance achieved	30-AUG-2021	State	2020 TTHMs M/R. Return To Compliance. Full sample set collected 08/30/2021.
0400181OX08302138926	040018130245612020	SOX	State Compliance achieved	30-AUG-2021	State	2020 HAA5 M/R. Return To Compliance. Full sample set collected 08/30/2021.
0400181OX04192138624	040018171700072019	SOX	State Compliance achieved	19-APR-2021	State	CCR 2018. Combined 2018-2020 CCR submitted 04/19/2021.
0400181OX04192138625	040018171700072020	SOX	State Compliance achieved	19-APR-2021	State	CCR 2019. Combined 2018-2020 CCR submitted 04/19/2021.
0400181OX04192138626	040018175750012019	SOX	State Compliance achieved	19-APR-2021	State	CCR 2019. Combined 2018-2020 CCR submitted 04/19/2021.
0400181OX01042138105	04001813A8000112020	SOX	State Compliance achieved	04-JAN-2021	State	2020 November RTCR. Return To Compliance. Full sample set collected 01/04/2021.

1 - 50 of 107

All Facilities

Facility Name	Facility ID	Is Source	Facility Type Description	Water Type Description	Availability Description	Facility Activity Status
NN0403000 NTUA Ft Defiance CWS	0400181GW002	Yes	Consecutive Connection	Ground water	Permanent	Active
FT DEF SCH (Fort Defiance 1)	0400181GW001	Yes	Well	Ground water	Other	Inactive
NTUA Inter-Tie Entry Point (GW002)	0400181EP001	No	Common Headers	-	-	Active
NN0400181 Tsehootsooi Middle School Distr System	0400181DS001	No	Distribution System/Zone	-	-	Active
Tsehootsooi Middle School Storage Tank	0400181ST001	No	Storage	-	-	Active

1 - 5 of 5

Treatment Processes

No treatment process(es) found. EPA has no record of treatment process(es) reported by the primacy agency for this water system.

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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