Is Seba Dalkai Boarding School BIA required to publish a Consumer Confidence Report?

Yes. Seba Dalkai Boarding School BIA is a community water system, and federal rules (40 CFR 141 Subpart O) require every community water system to publish a Consumer Confidence Report each year.

When is Seba Dalkai Boarding School BIA’s next Consumer Confidence Report due?

Seba Dalkai Boarding School BIA’s next Consumer Confidence Report is due by July 1, 2027. The report covers calendar year 2026.

What is a Consumer Confidence Report?

A Consumer Confidence Report (CCR) is the annual drinking water quality report that community water systems must provide to the people they serve. It lists the contaminants detected in the system’s water during the year, where the water comes from, and how the results compare with federal limits. EPA’s revised CCR rule takes effect January 1, 2027, and the first reports in the new format are due July 1, 2027.

Winslow, NN

Seba Dalkai Boarding School BIA Water System

Consumer Confidence Report status

Seba Dalkai Boarding School BIA must publish a Consumer Confidence Report — the annual drinking water quality report covering calendar year 2026 — by July 1, 2027.

As of August 1, 2026, EPA's federal records show 7 items for Seba Dalkai Boarding School BIA that are open and awaiting resolution. None are health-based violations — open items of this kind are most often monitoring or reporting requirements, not water-safety findings.

Data sourced from the EPA ECHO database (SDWA bulk download), last refreshed August 1, 2026. This is a record-keeping and public-information tool — it does not replace Navajo Nation’s official records. Always confirm current status with Navajo Nation before making decisions based on this information.

System facts

System ID (PWSID): NN0436019
System type: Community Water System
Population served: 250
Service connections: 20
Ownership: federal government
Water source: groundwater (wells)

Seba Dalkai Boarding School BIA is one of 125 community water systems in Navajo Nation in the 500 or fewer people size category, serving 250 people from groundwater.

As of August 1, 2026, its federal record holds 100 entries between 1996 and 2025, of which 7 remain open; none are health-based.

Of the 100, 34 are monitoring and reporting requirements — the category that accounts for about four in five of all violations in EPA's national dataset — rather than findings about the water itself. The record involves the Stage 2 Disinfectants and Disinfection Byproducts Rule, the Total Coliform Rules, and the Public Notice Rule and Revised PN Rule.

Violation history

Monitoring and Reporting (DBP)
—
Chlorine
April 1, 2025 – June 30, 2025
Archived
Report Sample Result/Fail Monitor (RTCR)
—
Revised Total Coliform Rule
April 1, 2025
Unaddressed
Monitoring, Routine (RTCR)
—
Revised Total Coliform Rule
February 1, 2025 – February 28, 2025
Resolved
Monitoring and Reporting (DBP)
—
Chlorine
January 1, 2025 – March 5, 2025
Resolved
Maximum Contaminant Level Violation, Average
Health-based
TTHM
April 1, 2024 – June 30, 2024
Resolved
Public Notification Violation for NPDWR Violation
—
Public Notice
April 1, 2024
Unaddressed
Public Notification Violation for NPDWR Violation
—
Public Notice
January 1, 2024
Unaddressed
Maximum Contaminant Level Violation, Average
Health-based
TTHM
January 1, 2024 – March 31, 2024
Resolved
Maximum Contaminant Level Violation, Average
Health-based
TTHM
October 1, 2023 – December 31, 2023
Resolved
Public Notification Violation for NPDWR Violation
—
Public Notice
October 1, 2023
Unaddressed
Report Sample Result/Fail Monitor (RTCR)
—
Revised Total Coliform Rule
October 1, 2023 – November 30, 2023
Resolved
Maximum Contaminant Level Violation, Average
Health-based
TTHM
July 1, 2023 – September 30, 2023
Resolved
Maximum Contaminant Level Violation, Average
Health-based
TTHM
April 1, 2023 – June 30, 2023
Resolved
Maximum Contaminant Level Violation, Average
Health-based
TTHM
January 1, 2023 – March 31, 2023
Resolved
Public Notification Violation for NPDWR Violation
—
Public Notice
January 1, 2023 – March 30, 2023
Resolved
Report Sample Result/Fail Monitor (RTCR)
—
Revised Total Coliform Rule
October 1, 2022 – November 17, 2022
Resolved
Maximum Contaminant Level Violation, Average
Health-based
TTHM
October 1, 2022 – December 31, 2022
Resolved
Public Notification Violation for NPDWR Violation
—
Public Notice
October 1, 2022 – October 1, 2022
Resolved
Public Notification Violation for NPDWR Violation
—
Public Notice
July 1, 2022 – October 20, 2022
Resolved
Maximum Contaminant Level Violation, Average
Health-based
TTHM
July 1, 2022 – September 30, 2022
Resolved
Monitoring, Routine (IDSE)
—
Total Haloacetic Acids (HAA5)
April 1, 2022 – May 31, 2022
Resolved
Maximum Contaminant Level Violation, Average
Health-based
TTHM
April 1, 2022 – June 30, 2022
Resolved
Monitoring, Routine (IDSE)
—
TTHM
April 1, 2022 – May 31, 2022
Resolved
Maximum Contaminant Level Violation, Average
Health-based
TTHM
January 1, 2022 – March 31, 2022
Resolved
Public Notification Violation for NPDWR Violation
—
Public Notice
October 1, 2021 – November 4, 2021
Resolved
Maximum Contaminant Level Violation, Average
Health-based
TTHM
October 1, 2021 – December 31, 2021
Resolved
Maximum Contaminant Level Violation, Average
Health-based
TTHM
July 1, 2021 – September 30, 2021
Resolved
Public Notification Violation for NPDWR Violation
—
Public Notice
April 1, 2021 – April 15, 2021
Resolved
Maximum Contaminant Level Violation, Average
Health-based
TTHM
April 1, 2021 – June 30, 2021
Resolved
Maximum Contaminant Level Violation, Average
Health-based
TTHM
January 1, 2021 – March 31, 2021
Resolved
Monitoring, Routine (RTCR)
—
Revised Total Coliform Rule
January 1, 2021 – January 31, 2021
Resolved
Maximum Contaminant Level Violation, Average
Health-based
TTHM
October 1, 2020 – December 31, 2020
Resolved
Public Notification Violation for NPDWR Violation
—
Public Notice
July 1, 2020
Unaddressed
Maximum Contaminant Level Violation, Average
Health-based
TTHM
July 1, 2020 – September 30, 2020
Resolved
Report Sample Result/Fail Monitor (RTCR)
—
Revised Total Coliform Rule
May 1, 2020 – June 19, 2020
Resolved
Maximum Contaminant Level Violation, Average
Health-based
TTHM
April 1, 2020 – June 30, 2020
Resolved
Maximum Contaminant Level Violation, Average
Health-based
TTHM
January 1, 2020 – March 31, 2020
Resolved
Public Notification Violation for NPDWR Violation
—
Public Notice
October 1, 2019
Unaddressed
Maximum Contaminant Level Violation, Average
Health-based
TTHM
October 1, 2019 – December 31, 2019
Resolved
Public Notification Violation for NPDWR Violation
—
Public Notice
July 1, 2019
Unaddressed
Maximum Contaminant Level Violation, Average
Health-based
TTHM
July 1, 2019 – September 30, 2019
Resolved
Maximum Contaminant Level Violation, Average
Health-based
TTHM
April 1, 2019 – June 30, 2019
Resolved
Public Notification Violation for NPDWR Violation
—
Public Notice
April 1, 2019 – April 12, 2019
Resolved
Maximum Contaminant Level Violation, Average
Health-based
TTHM
January 1, 2019 – March 31, 2019
Resolved
Monitoring, Routine (IDSE)
—
TTHM
October 1, 2018 – December 31, 2018
Resolved
Maximum Contaminant Level Violation, Average
Health-based
TTHM
October 1, 2018 – December 31, 2018
Resolved
Monitoring, Routine (IDSE)
—
Total Haloacetic Acids (HAA5)
October 1, 2018 – December 31, 2018
Resolved
Public Notification Violation for NPDWR Violation
—
Public Notice
October 1, 2018 – April 12, 2019
Resolved
Maximum Contaminant Level Violation, Average
Health-based
TTHM
July 1, 2018 – September 30, 2018
Resolved
Maximum Contaminant Level Violation, Average
Health-based
TTHM
April 1, 2018 – June 30, 2018
Resolved
Monitoring, Routine (IDSE)
—
TTHM
January 1, 2018 – March 31, 2018
Resolved
Maximum Contaminant Level Violation, Average
Health-based
TTHM
January 1, 2018 – March 31, 2018
Resolved
Monitoring, Routine (IDSE)
—
Total Haloacetic Acids (HAA5)
January 1, 2018 – March 31, 2018
Resolved
Maximum Contaminant Level Violation, Average
Health-based
TTHM
October 1, 2017 – December 31, 2017
Resolved
Maximum Contaminant Level Violation, Average
Health-based
TTHM
July 1, 2017 – September 30, 2017
Resolved
Maximum Contaminant Level Violation, Average
Health-based
TTHM
April 1, 2017 – June 30, 2017
Resolved
Public Notification Violation for NPDWR Violation
—
Public Notice
April 1, 2017 – June 20, 2017
Resolved
Maximum Contaminant Level Violation, Average
Health-based
TTHM
January 1, 2017 – March 31, 2017
Resolved
Maximum Contaminant Level Violation, Average
Health-based
TTHM
October 1, 2016 – December 19, 2016
Resolved
Maximum Contaminant Level Violation, Average
Health-based
TTHM
July 1, 2016 – September 30, 2016
Resolved
Maximum Contaminant Level Violation, Average
Health-based
TTHM
April 1, 2016 – June 30, 2016
Resolved
Sample Siting Plan Errors (RTCR)
—
Revised Total Coliform Rule
April 1, 2016 – July 12, 2019
Resolved
Monitoring, Routine (IDSE)
—
Total Haloacetic Acids (HAA5)
January 1, 2016 – March 31, 2016
Resolved
Monitoring, Routine (IDSE)
—
TTHM
January 1, 2016 – March 31, 2016
Resolved
Maximum Contaminant Level Violation, Average
Health-based
TTHM
January 1, 2016 – March 31, 2016
Resolved
Maximum Contaminant Level Violation, Average
Health-based
TTHM
October 1, 2015 – December 31, 2015
Resolved
Maximum Contaminant Level Violation, Average
Health-based
TTHM
July 1, 2015 – September 30, 2015
Resolved
Failure Submit IDSE/Subpart V Plan Rpt
—
Stage 2 Disinfectants and Disinfection Byproducts Rule
October 1, 2013 – February 23, 2023
Resolved
Maximum Contaminant Level Violation, Average
Health-based
TTHM
April 1, 2013 – June 30, 2013
Resolved
Maximum Contaminant Level Violation, Average
Health-based
TTHM
January 1, 2013 – March 20, 2013
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
December 1, 2012 – December 31, 2012
Resolved
Maximum Contaminant Level Violation, Average
Health-based
TTHM
October 1, 2012 – December 31, 2012
Resolved
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
August 1, 2012 – August 31, 2012
Resolved
Maximum Contaminant Level Violation, Average
Health-based
TTHM
April 1, 2012 – June 30, 2012
Resolved
Maximum Contaminant Level Violation, Average
Health-based
TTHM
January 1, 2012 – March 31, 2012
Resolved
Maximum Contaminant Level Violation, Average
Health-based
TTHM
October 1, 2010 – December 31, 2010
Resolved
Monitoring and Reporting (DBP)
—
Total Haloacetic Acids (HAA5)
January 1, 2010 – December 31, 2010
Resolved
Monitoring and Reporting (DBP)
—
TTHM
January 1, 2010 – December 31, 2010
Resolved
Follow-up Or Routine LCR Tap M/R
—
Lead and Copper Rule
January 1, 2008 – January 27, 2012
Resolved
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
August 1, 2007 – August 31, 2007
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
May 1, 2006 – May 31, 2006
Resolved
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
August 1, 2005 – August 31, 2005
Resolved
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
July 1, 2005 – July 29, 2005
Resolved
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
September 1, 2004 – September 30, 2004
Resolved
Monitoring, Repeat Major (TCR)
—
Coliform (TCR)
August 1, 2004 – August 31, 2004
Resolved
Follow-up Or Routine LCR Tap M/R
—
Lead and Copper Rule
January 1, 2004 – September 30, 2011
Resolved
Monitoring, Routine Minor (TCR)
—
Coliform (TCR)
October 1, 2003 – October 31, 2003
Resolved
Monitoring, Repeat Major (TCR)
—
Coliform (TCR)
September 1, 2003 – September 30, 2003
Resolved
Monitoring, Repeat Minor (TCR)
—
Coliform (TCR)
August 1, 2003 – August 31, 2003
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
November 1, 2002 – November 30, 2002
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
November 1, 2002 – November 30, 2002
Archived
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
July 1, 2002 – July 31, 2002
Archived
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
July 1, 2002 – July 31, 2002
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
May 1, 2002 – May 13, 2002
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
December 1, 2001 – December 31, 2001
Resolved
Monitoring, Repeat Major (TCR)
—
Coliform (TCR)
August 30, 1996 – September 29, 1996
Resolved
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
August 14, 1996 – September 13, 1996
Resolved
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
August 14, 1996 – September 13, 1996
Archived
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
April 30, 1996 – May 29, 1996
Archived
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
April 30, 1996 – May 29, 1996
Resolved

Archived closed in EPA's records (typically due to age or a data correction)Unaddressed no corrective action on record yetResolved addressed and confirmed by the state

Period	Violation	Contaminant / rule	Health-based	Status
April 1, 2025 – June 30, 2025	Monitoring and Reporting (DBP)	Chlorine	—	Archived
April 1, 2025	Report Sample Result/Fail Monitor (RTCR)	Revised Total Coliform Rule	—	Unaddressed
February 1, 2025 – February 28, 2025	Monitoring, Routine (RTCR)	Revised Total Coliform Rule	—	Resolved
January 1, 2025 – March 5, 2025	Monitoring and Reporting (DBP)	Chlorine	—	Resolved
April 1, 2024 – June 30, 2024	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Resolved
April 1, 2024	Public Notification Violation for NPDWR Violation	Public Notice	—	Unaddressed
January 1, 2024	Public Notification Violation for NPDWR Violation	Public Notice	—	Unaddressed
January 1, 2024 – March 31, 2024	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Resolved
October 1, 2023 – December 31, 2023	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Resolved
October 1, 2023	Public Notification Violation for NPDWR Violation	Public Notice	—	Unaddressed
October 1, 2023 – November 30, 2023	Report Sample Result/Fail Monitor (RTCR)	Revised Total Coliform Rule	—	Resolved
July 1, 2023 – September 30, 2023	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Resolved
April 1, 2023 – June 30, 2023	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Resolved
January 1, 2023 – March 31, 2023	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Resolved
January 1, 2023 – March 30, 2023	Public Notification Violation for NPDWR Violation	Public Notice	—	Resolved
October 1, 2022 – November 17, 2022	Report Sample Result/Fail Monitor (RTCR)	Revised Total Coliform Rule	—	Resolved
October 1, 2022 – December 31, 2022	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Resolved
October 1, 2022 – October 1, 2022	Public Notification Violation for NPDWR Violation	Public Notice	—	Resolved
July 1, 2022 – October 20, 2022	Public Notification Violation for NPDWR Violation	Public Notice	—	Resolved
July 1, 2022 – September 30, 2022	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Resolved
April 1, 2022 – May 31, 2022	Monitoring, Routine (IDSE)	Total Haloacetic Acids (HAA5)	—	Resolved
April 1, 2022 – June 30, 2022	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Resolved
April 1, 2022 – May 31, 2022	Monitoring, Routine (IDSE)	TTHM	—	Resolved
January 1, 2022 – March 31, 2022	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Resolved
October 1, 2021 – November 4, 2021	Public Notification Violation for NPDWR Violation	Public Notice	—	Resolved
October 1, 2021 – December 31, 2021	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Resolved
July 1, 2021 – September 30, 2021	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Resolved
April 1, 2021 – April 15, 2021	Public Notification Violation for NPDWR Violation	Public Notice	—	Resolved
April 1, 2021 – June 30, 2021	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Resolved
January 1, 2021 – March 31, 2021	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Resolved
January 1, 2021 – January 31, 2021	Monitoring, Routine (RTCR)	Revised Total Coliform Rule	—	Resolved
October 1, 2020 – December 31, 2020	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Resolved
July 1, 2020	Public Notification Violation for NPDWR Violation	Public Notice	—	Unaddressed
July 1, 2020 – September 30, 2020	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Resolved
May 1, 2020 – June 19, 2020	Report Sample Result/Fail Monitor (RTCR)	Revised Total Coliform Rule	—	Resolved
April 1, 2020 – June 30, 2020	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Resolved
January 1, 2020 – March 31, 2020	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Resolved
October 1, 2019	Public Notification Violation for NPDWR Violation	Public Notice	—	Unaddressed
October 1, 2019 – December 31, 2019	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Resolved
July 1, 2019	Public Notification Violation for NPDWR Violation	Public Notice	—	Unaddressed
July 1, 2019 – September 30, 2019	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Resolved
April 1, 2019 – June 30, 2019	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Resolved
April 1, 2019 – April 12, 2019	Public Notification Violation for NPDWR Violation	Public Notice	—	Resolved
January 1, 2019 – March 31, 2019	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Resolved
October 1, 2018 – December 31, 2018	Monitoring, Routine (IDSE)	TTHM	—	Resolved
October 1, 2018 – December 31, 2018	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Resolved
October 1, 2018 – December 31, 2018	Monitoring, Routine (IDSE)	Total Haloacetic Acids (HAA5)	—	Resolved
October 1, 2018 – April 12, 2019	Public Notification Violation for NPDWR Violation	Public Notice	—	Resolved
July 1, 2018 – September 30, 2018	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Resolved
April 1, 2018 – June 30, 2018	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Resolved
January 1, 2018 – March 31, 2018	Monitoring, Routine (IDSE)	TTHM	—	Resolved
January 1, 2018 – March 31, 2018	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Resolved
January 1, 2018 – March 31, 2018	Monitoring, Routine (IDSE)	Total Haloacetic Acids (HAA5)	—	Resolved
October 1, 2017 – December 31, 2017	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Resolved
July 1, 2017 – September 30, 2017	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Resolved
April 1, 2017 – June 30, 2017	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Resolved
April 1, 2017 – June 20, 2017	Public Notification Violation for NPDWR Violation	Public Notice	—	Resolved
January 1, 2017 – March 31, 2017	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Resolved
October 1, 2016 – December 19, 2016	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Resolved
July 1, 2016 – September 30, 2016	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Resolved
April 1, 2016 – June 30, 2016	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Resolved
April 1, 2016 – July 12, 2019	Sample Siting Plan Errors (RTCR)	Revised Total Coliform Rule	—	Resolved
January 1, 2016 – March 31, 2016	Monitoring, Routine (IDSE)	Total Haloacetic Acids (HAA5)	—	Resolved
January 1, 2016 – March 31, 2016	Monitoring, Routine (IDSE)	TTHM	—	Resolved
January 1, 2016 – March 31, 2016	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Resolved
October 1, 2015 – December 31, 2015	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Resolved
July 1, 2015 – September 30, 2015	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Resolved
October 1, 2013 – February 23, 2023	Failure Submit IDSE/Subpart V Plan Rpt	Stage 2 Disinfectants and Disinfection Byproducts Rule	—	Resolved
April 1, 2013 – June 30, 2013	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Resolved
January 1, 2013 – March 20, 2013	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Resolved
December 1, 2012 – December 31, 2012	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
October 1, 2012 – December 31, 2012	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Resolved
August 1, 2012 – August 31, 2012	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Resolved
April 1, 2012 – June 30, 2012	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Resolved
January 1, 2012 – March 31, 2012	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Resolved
October 1, 2010 – December 31, 2010	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Resolved
January 1, 2010 – December 31, 2010	Monitoring and Reporting (DBP)	Total Haloacetic Acids (HAA5)	—	Resolved
January 1, 2010 – December 31, 2010	Monitoring and Reporting (DBP)	TTHM	—	Resolved
January 1, 2008 – January 27, 2012	Follow-up Or Routine LCR Tap M/R	Lead and Copper Rule	—	Resolved
August 1, 2007 – August 31, 2007	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Resolved
May 1, 2006 – May 31, 2006	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
August 1, 2005 – August 31, 2005	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Resolved
July 1, 2005 – July 29, 2005	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Resolved
September 1, 2004 – September 30, 2004	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Resolved
August 1, 2004 – August 31, 2004	Monitoring, Repeat Major (TCR)	Coliform (TCR)	—	Resolved
January 1, 2004 – September 30, 2011	Follow-up Or Routine LCR Tap M/R	Lead and Copper Rule	—	Resolved
October 1, 2003 – October 31, 2003	Monitoring, Routine Minor (TCR)	Coliform (TCR)	—	Resolved
September 1, 2003 – September 30, 2003	Monitoring, Repeat Major (TCR)	Coliform (TCR)	—	Resolved
August 1, 2003 – August 31, 2003	Monitoring, Repeat Minor (TCR)	Coliform (TCR)	—	Resolved
November 1, 2002 – November 30, 2002	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
November 1, 2002 – November 30, 2002	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Archived
July 1, 2002 – July 31, 2002	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Archived
July 1, 2002 – July 31, 2002	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Resolved
May 1, 2002 – May 13, 2002	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
December 1, 2001 – December 31, 2001	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
August 30, 1996 – September 29, 1996	Monitoring, Repeat Major (TCR)	Coliform (TCR)	—	Resolved
August 14, 1996 – September 13, 1996	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Resolved
August 14, 1996 – September 13, 1996	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Archived
April 30, 1996 – May 29, 1996	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Archived
April 30, 1996 – May 29, 1996	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved

Archived closed in EPA's records (typically due to age or a data correction)Unaddressed no corrective action on record yetResolved addressed and confirmed by the state

Enforcement actions

December 5, 2025State Formal Notice of Violation issued1 linked violation
December 5, 2025State Formal Notice of Violation issued1 linked violation
December 5, 2025State Formal Notice of Violation issued1 linked violation
December 5, 2025State Formal Notice of Violation issued1 linked violation
March 7, 2025State Formal Notice of Violation issued1 linked violation
March 5, 2025State Compliance achieved1 linked violation
March 5, 2025State Compliance achieved1 linked violation
September 3, 2024State Compliance achieved1 linked violation
September 3, 2024State Compliance achieved1 linked violation
September 3, 2024State Compliance achieved1 linked violation
September 3, 2024State Compliance achieved1 linked violation
September 3, 2024State Compliance achieved1 linked violation
September 3, 2024State Compliance achieved1 linked violation
September 3, 2024State Compliance achieved1 linked violation
September 3, 2024State Compliance achieved1 linked violation
September 3, 2024State Compliance achieved1 linked violation
September 3, 2024State Compliance achieved1 linked violation
September 3, 2024State Compliance achieved1 linked violation
September 3, 2024State Compliance achieved1 linked violation
September 3, 2024State Compliance achieved1 linked violation
September 3, 2024State Compliance achieved1 linked violation
September 3, 2024State Compliance achieved1 linked violation
September 3, 2024State Compliance achieved1 linked violation
September 3, 2024State Compliance achieved1 linked violation
September 3, 2024State Compliance achieved1 linked violation
September 3, 2024State Compliance achieved1 linked violation
September 3, 2024State Compliance achieved1 linked violation
September 3, 2024State Compliance achieved1 linked violation
September 3, 2024State Compliance achieved1 linked violation
September 3, 2024State Compliance achieved1 linked violation
September 3, 2024State Compliance achieved1 linked violation
September 3, 2024State Compliance achieved1 linked violation
September 3, 2024State Compliance achieved1 linked violation
September 3, 2024State Compliance achieved1 linked violation
September 3, 2024State Compliance achieved1 linked violation
November 30, 2023State Compliance achieved1 linked violation
October 17, 2023State Formal Notice of Violation issued1 linked violation
March 30, 2023State Compliance achieved1 linked violation
February 23, 2023State Compliance achieved1 linked violation
November 17, 2022State Compliance achieved1 linked violation
October 20, 2022State Compliance achieved1 linked violation
October 1, 2022State Compliance achieved1 linked violation
September 30, 2022State Formal Notice of Violation issued1 linked violation
September 30, 2022State Formal Notice of Violation issued1 linked violation
May 31, 2022State Compliance achieved1 linked violation
May 31, 2022State Compliance achieved1 linked violation
November 4, 2021State Compliance achieved1 linked violation
April 15, 2021State Compliance achieved1 linked violation
March 31, 2021State Formal Notice of Violation issued1 linked violation
March 31, 2021State Public Notification issued1 linked violation
February 17, 2021State Compliance achieved1 linked violation
August 20, 2020State Formal Notice of Violation issued1 linked violation
August 20, 2020State Formal Notice of Violation issued1 linked violation
June 19, 2020State Compliance achieved1 linked violation
July 12, 2019State Administrative/Compliance Order without penalty issued1 linked violation
July 12, 2019State Compliance achieved1 linked violation
July 12, 2019State Administrative/Compliance Order without penalty issued1 linked violation
July 12, 2019State Administrative/Compliance Order without penalty issued1 linked violation
July 12, 2019State Administrative/Compliance Order without penalty issued1 linked violation
July 12, 2019State Administrative/Compliance Order without penalty issued1 linked violation
July 12, 2019State Administrative/Compliance Order without penalty issued1 linked violation
July 12, 2019State Administrative/Compliance Order without penalty issued1 linked violation
July 12, 2019State Administrative/Compliance Order without penalty issued1 linked violation
July 12, 2019State Administrative/Compliance Order without penalty issued1 linked violation
July 12, 2019State Administrative/Compliance Order without penalty issued1 linked violation
July 12, 2019State Administrative/Compliance Order without penalty issued1 linked violation
July 12, 2019State Administrative/Compliance Order without penalty issued1 linked violation
July 12, 2019State Administrative/Compliance Order without penalty issued1 linked violation
July 12, 2019State Administrative/Compliance Order without penalty issued1 linked violation
July 12, 2019State Administrative/Compliance Order without penalty issued1 linked violation
July 12, 2019State Administrative/Compliance Order without penalty issued1 linked violation
July 12, 2019State Administrative/Compliance Order without penalty issued1 linked violation
July 12, 2019State Administrative/Compliance Order without penalty issued1 linked violation
July 12, 2019State Administrative/Compliance Order without penalty issued1 linked violation
July 12, 2019State Administrative/Compliance Order without penalty issued1 linked violation
July 12, 2019State Administrative/Compliance Order without penalty issued1 linked violation
July 12, 2019State Administrative/Compliance Order without penalty issued1 linked violation
July 12, 2019State Administrative/Compliance Order without penalty issued1 linked violation
July 12, 2019State Administrative/Compliance Order without penalty issued1 linked violation
July 12, 2019State Administrative/Compliance Order without penalty issued1 linked violation
July 12, 2019State Administrative/Compliance Order without penalty issued1 linked violation
July 12, 2019State Administrative/Compliance Order without penalty issued1 linked violation
July 12, 2019State Administrative/Compliance Order without penalty issued1 linked violation
June 13, 2019State Formal Notice of Violation issued1 linked violation
April 12, 2019State Compliance achieved1 linked violation
April 12, 2019State Compliance achieved1 linked violation
March 26, 2019State Compliance achieved1 linked violation
March 26, 2019State Compliance achieved1 linked violation
March 5, 2019State Public Notification issued1 linked violation
March 5, 2019State Formal Notice of Violation issued1 linked violation
March 5, 2019State Formal Notice of Violation issued1 linked violation
March 5, 2019State Formal Notice of Violation issued1 linked violation
March 5, 2019State Public Notification issued1 linked violation
March 5, 2019State Public Notification issued1 linked violation
January 10, 2019State Formal Notice of Violation issued1 linked violation
August 31, 2018State Formal Notice of Violation issued1 linked violation
August 31, 2018State Public Notification issued1 linked violation
June 28, 2018State Compliance achieved1 linked violation
June 28, 2018State Compliance achieved1 linked violation
May 31, 2018State Formal Notice of Violation issued1 linked violation
May 31, 2018State Formal Notice of Violation issued1 linked violation
May 31, 2018State Public Notification issued1 linked violation
May 31, 2018State Public Notification issued1 linked violation
May 31, 2018State Public Notification issued1 linked violation
May 31, 2018State Formal Notice of Violation issued1 linked violation
March 5, 2018State Public Notification issued1 linked violation
March 5, 2018State Formal Notice of Violation issued1 linked violation
December 1, 2017State Formal Notice of Violation issued1 linked violation
December 1, 2017State Formal Notice of Violation issued1 linked violation
September 27, 2017State Compliance achieved1 linked violation
September 27, 2017State Compliance achieved1 linked violation
September 27, 2017State Compliance achieved1 linked violation
September 27, 2017State Compliance achieved1 linked violation
August 25, 2017State Public Notification issued1 linked violation
August 25, 2017State Public Notification issued1 linked violation
August 25, 2017State Public Notification issued1 linked violation
August 25, 2017State Formal Notice of Violation issued1 linked violation
August 25, 2017State Formal Notice of Violation issued1 linked violation
August 25, 2017State Formal Notice of Violation issued1 linked violation
June 30, 2017State Public Notification issued1 linked violation
June 30, 2017State Formal Notice of Violation issued1 linked violation
June 20, 2017State Compliance achieved1 linked violation
February 27, 2017State Formal Notice of Violation issued1 linked violation
February 27, 2017State Public Notification issued1 linked violation
December 19, 2016State Compliance achieved1 linked violation
December 8, 2016State Formal Notice of Violation issued1 linked violation
August 31, 2016State Public Notification issuedgeneral compliance action — not tied to a specific violation on record
August 31, 2016State Formal Notice of Violation issued1 linked violation
June 22, 2016State Compliance achieved1 linked violation
June 20, 2016State Compliance achieved1 linked violation
June 20, 2016State Compliance achieved1 linked violation
June 7, 2016State Public Notification received1 linked violation
June 7, 2016State Compliance achieved1 linked violation
June 7, 2016State Compliance achievedgeneral compliance action — not tied to a specific violation on record
June 7, 2016State Compliance achievedgeneral compliance action — not tied to a specific violation on record
May 31, 2016State Public Notification issued1 linked violation
May 31, 2016State Formal Notice of Violation issued1 linked violation
May 31, 2016State Public Notification issued1 linked violation
May 31, 2016State Public Notification issued1 linked violation
May 31, 2016State Formal Notice of Violation issued1 linked violation
May 31, 2016State Formal Notice of Violation issued1 linked violation
March 8, 2016State Public Notification issued1 linked violation
March 8, 2016State Formal Notice of Violation issued1 linked violation
December 29, 2015State Compliance achieved1 linked violation
December 15, 2015State Public Notification received1 linked violation
December 2, 2015State Formal Notice of Violation issued1 linked violation
August 6, 2013State Compliance achieved1 linked violation
March 20, 2013State Compliance achieved1 linked violation
March 20, 2013State Compliance achieved1 linked violation
March 13, 2013State Formal Notice of Violation issued1 linked violation
January 14, 2013State Compliance achieved1 linked violation
January 14, 2013State Formal Notice of Violation issued1 linked violation
December 19, 2012State Compliance achieved1 linked violation
November 20, 2012State Formal Notice of Violation issued1 linked violation
November 2, 2012State Violation/Reminder Noticegeneral compliance action — not tied to a specific violation on record
November 2, 2012State Violation/Reminder Noticegeneral compliance action — not tied to a specific violation on record
November 2, 2012State Violation/Reminder Noticegeneral compliance action — not tied to a specific violation on record
November 2, 2012State Violation/Reminder Noticegeneral compliance action — not tied to a specific violation on record
November 2, 2012State Violation/Reminder Noticegeneral compliance action — not tied to a specific violation on record
November 1, 2012State Compliance achieved1 linked violation
October 9, 2012State Public Notification receivedgeneral compliance action — not tied to a specific violation on record
September 12, 2012State Compliance achieved1 linked violation
August 23, 2012State Public Notification receivedgeneral compliance action — not tied to a specific violation on record
August 8, 2012State Public Notification receivedgeneral compliance action — not tied to a specific violation on record
July 6, 2012State Public Notification receivedgeneral compliance action — not tied to a specific violation on record
June 21, 2012State Compliance achieved1 linked violation
June 6, 2012State Public Notification received1 linked violation
February 14, 2012State Formal Notice of Violation issued1 linked violation
January 27, 2012State Compliance achieved1 linked violation
January 27, 2012State Compliance achieved1 linked violation
January 27, 2012State Compliance achieved1 linked violation
September 30, 2011State Compliance achieved1 linked violation
September 21, 2010State Formal Notice of Violation issued1 linked violation
September 21, 2010State Formal Notice of Violation issued1 linked violation
September 16, 2008State Public Notification receivedgeneral compliance action — not tied to a specific violation on record
May 16, 2008State Formal Notice of Violation issued1 linked violation
May 16, 2008State Formal Notice of Violation issued1 linked violation
May 16, 2008State Formal Notice of Violation issued1 linked violation
May 16, 2008State Formal Notice of Violation issued1 linked violation
May 16, 2008State Formal Notice of Violation issued1 linked violation
May 16, 2008State Formal Notice of Violation issued1 linked violation
September 26, 2007State Public Notification received1 linked violation
September 26, 2007State Compliance achieved1 linked violation
August 20, 2007State Public Notification requested2 linked violations
March 19, 2007State Compliance achieved1 linked violation
January 1, 2007State Compliance achieved8 linked violations
November 9, 2006State Violation/Reminder Noticegeneral compliance action — not tied to a specific violation on record
August 15, 2006State Formal Notice of Violation issued1 linked violation
August 15, 2006State Public Notification received1 linked violation
June 12, 2006State Compliance achieved1 linked violation
February 14, 2006State Violation/Reminder Noticegeneral compliance action — not tied to a specific violation on record
December 18, 2005State Compliance achieved1 linked violation
November 15, 2005State Othergeneral compliance action — not tied to a specific violation on record
July 29, 2005State Compliance achieved1 linked violation
September 28, 2004State Technical Assistance Visit1 linked violation
September 15, 2004State Public Notification received1 linked violation
August 23, 2004State Public Notification received1 linked violation
October 11, 2002State Public Notification receivedgeneral compliance action — not tied to a specific violation on record
July 8, 2002State Public Notification receivedgeneral compliance action — not tied to a specific violation on record
May 13, 2002State Compliance achieved1 linked violation
December 5, 2000State Compliance achieved3 linked violations

Common questions

Is Seba Dalkai Boarding School BIA required to publish a Consumer Confidence Report?: Yes. Seba Dalkai Boarding School BIA is a community water system, and federal rules (40 CFR 141 Subpart O) require every community water system to publish a Consumer Confidence Report each year.
When is Seba Dalkai Boarding School BIA’s next Consumer Confidence Report due?: Seba Dalkai Boarding School BIA’s next Consumer Confidence Report is due by July 1, 2027. The report covers calendar year 2026.
Does Seba Dalkai Boarding School BIA have any open drinking water violations on record?: As of August 1, 2026, EPA's federal records show 7 items for Seba Dalkai Boarding School BIA that are open and awaiting resolution. None are health-based violations — open items of this kind are most often monitoring or reporting requirements, not water-safety findings.
What is a Consumer Confidence Report?: A Consumer Confidence Report (CCR) is the annual drinking water quality report that community water systems must provide to the people they serve. It lists the contaminants detected in the system’s water during the year, where the water comes from, and how the results compare with federal limits. EPA’s revised CCR rule takes effect January 1, 2027, and the first reports in the new format are due July 1, 2027.

Contact

BIA Seba Dalkai Boarding School, Inc

9286573208

Winslow, AZ 86047