Safe Drinking Water Information System (SDWIS) Federal Reporting Services

Your Drinking Water Query results from SDWIS Fed Reporting Services

PWS ID	NN0433001
PWS Name	Tuba City Boarding School BIA
PWS Type	Community water system
Owner Type	Federal government
Primary Source	Ground water
Primacy Type	Tribal
Is Wholesaler?	No
Population Served	2040
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 and Reporting (DBP)	Stage 1 Disinfectants and Disinfection Byproducts Rule	Chlorine	043300127099972025	Known	01-JUL-2025	30-SEP-2025	No
MR	Monitoring and Reporting (DBP)	Stage 1 Disinfectants and Disinfection Byproducts Rule	Chlorine	043300127099942025	Known	01-APR-2025	30-JUN-2025	No
MR	Monitoring and Reporting (DBP)	Stage 1 Disinfectants and Disinfection Byproducts Rule	Chlorine	043300127099912025	Known	01-JAN-2025	31-MAR-2025	No
MR	Monitoring and Reporting (DBP)	Stage 1 Disinfectants and Disinfection Byproducts Rule	Chlorine	0433001270999102024	Known	01-OCT-2024	31-DEC-2024	No
MR	Monitoring and Reporting (DBP)	Stage 1 Disinfectants and Disinfection Byproducts Rule	Chlorine	043300127099972024	Known	01-JUL-2024	30-SEP-2024	No
MR	Monitoring and Reporting (DBP)	Stage 1 Disinfectants and Disinfection Byproducts Rule	Chlorine	043300127099942024	Known	01-APR-2024	30-JUN-2024	No
RPT	Report Sample Result/Fail Monitor (RTCR)	Revised Total Coliform Rule	Revised Total Coliform Rule	04330014B800012024	Returned to Compliance	01-JAN-2024	-	No
MON	Monitoring, Routine (RTCR)	Revised Total Coliform Rule	Revised Total Coliform Rule	04330013A8000102023	Returned to Compliance	01-OCT-2023	31-OCT-2023	No
MR	Monitoring and Reporting (DBP)	Stage 1 Disinfectants and Disinfection Byproducts Rule	Chlorine	0433001270999102023	Returned to Compliance	01-OCT-2023	31-DEC-2023	No
MON	Monitoring, Routine (RTCR)	Revised Total Coliform Rule	Revised Total Coliform Rule	04330013A800092023	Returned to Compliance	01-SEP-2023	30-SEP-2023	No
MR	Monitoring and Reporting (DBP)	Stage 1 Disinfectants and Disinfection Byproducts Rule	Chlorine	043300127099972023	Returned to Compliance	01-JUL-2023	30-SEP-2023	No
RPT	Report Sample Result/Fail Monitor (RTCR)	Revised Total Coliform Rule	Revised Total Coliform Rule	04330014B8000102022	Returned to Compliance	01-OCT-2022	-	No
MR	Monitoring and Reporting (DBP)	Stage 1 Disinfectants and Disinfection Byproducts Rule	Chlorine	043300127099912022	Returned to Compliance	01-JAN-2022	31-MAR-2022	No
RPT	Report Sample Result/Fail Monitor (RTCR)	Revised Total Coliform Rule	Revised Total Coliform Rule	04330014B800052020	Returned to Compliance	01-MAY-2020	-	No
MR	Monitoring, Regular	Inorganic Chemicals	Fluoride	043300103102512008	Returned to Compliance	01-JAN-2008	31-DEC-2010	No
Other	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	Consumer Confidence Rule	043300171700072006	Returned to Compliance	01-JUL-2006	-	No
Other	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	Consumer Confidence Rule	043300171700072005	Returned to Compliance	01-JUL-2005	-	No
MR	Monitoring, Routine Minor (TCR)	Total Coliform Rule	Coliform (TCR)	0433001243100112004	Returned to Compliance	01-NOV-2004	30-NOV-2004	No
MCL	Maximum Contaminant Level Violation, Monthly (TCR)	Total Coliform Rule	Coliform (TCR)	0433001223100102004	Returned to Compliance	01-OCT-2004	31-OCT-2004	Yes
MR	Monitoring, Routine Minor (TCR)	Total Coliform Rule	Coliform (TCR)	043300124310042004	Returned to Compliance	01-APR-2004	30-APR-2004	No
MR	Monitoring, Routine Major (TCR)	Total Coliform Rule	Coliform (TCR)	043300123310092002	Returned to Compliance	01-SEP-2002	30-SEP-2002	No
Other	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	Consumer Confidence Rule	043300171700072002	Returned to Compliance	01-JUL-2002	-	No
MR	Monitoring, Routine Major (TCR)	Total Coliform Rule	Coliform (TCR)	043300123310032002	Returned to Compliance	01-MAR-2002	31-MAR-2002	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Picloram	043300103204012001	Returned to Compliance	01-JAN-2001	31-DEC-2001	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	OXAMYL	043300103203612001	Returned to Compliance	01-JAN-2001	31-DEC-2001	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Glyphosate	043300103203412001	Returned to Compliance	01-JAN-2001	31-DEC-2001	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Dalapon	043300103203112001	Returned to Compliance	01-JAN-2001	31-DEC-2001	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	ETHYLENE DIBROMIDE	043300103294612001	Returned to Compliance	01-JAN-2001	31-DEC-2001	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	1,2-DIBROMO-3-CHLOROPROPANE	043300103293112001	Returned to Compliance	01-JAN-2001	31-DEC-2001	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	2,4,5-TP	043300103211012001	Returned to Compliance	01-JAN-2001	31-DEC-2001	No
MR	Monitoring, Regular	Inorganic Chemicals	CYANIDE	043300103102412001	Returned to Compliance	01-JAN-2001	31-DEC-2001	No
MR	Monitoring, Regular	Inorganic Chemicals	Fluoride	043300103102512001	Returned to Compliance	01-JAN-2001	31-DEC-2001	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	2,4-D	043300103210512001	Returned to Compliance	01-JAN-2001	31-DEC-2001	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	2,3,7,8-TCDD	043300103206312001	Returned to Compliance	01-JAN-2001	31-DEC-2001	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Carbofuran	043300103204612001	Returned to Compliance	01-JAN-2001	31-DEC-2001	No
Other	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	Consumer Confidence Rule	043300171700072000	Returned to Compliance	01-JUL-2000	-	No
MR	Monitoring, Repeat Major (TCR)	Total Coliform Rule	Coliform (TCR)	043300125310071996	Returned to Compliance	10-JUL-1996	09-AUG-1996	No

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Enforcement Actions

Latest Enforcement ID	Associated To Violation ID	Enforcement Action Type Code	Enforcement Action Description	Enforcement Date	Originator Description	Enforcement Comment
0433001FJ12052543032	043300127099942025	SFJ	State Formal Notice of Violation issued	05-DEC-2025	State	NOV issued for failure to collect an April to June chlorine residual.
0433001FJ04212542135	0433001270999102024	SFJ	State Formal Notice of Violation issued	21-APR-2025	State	NOV issued for failure to collect and report a chlorine residual.
0433001FJ03072542117	043300127099972024	SFJ	State Formal Notice of Violation issued	07-MAR-2025	State	NOV issued for failure to collect a chlorine residual during the 3rd Qtr 2024.
0433001FJ08282441426	043300127099942024	SFJ	State Formal Notice of Violation issued	28-AUG-2024	State	NOV issued for failure to collect routine chlorine residuals readings for the quarter (April to June 2024).
0433001OX02202441027	04330014B800012024	SOX	State Compliance achieved	20-FEB-2024	State	January 2024 RTCR Reporting. Return To Compliance. Lab results submitted LATE 02/20/2024.
0433001OX11132340787	043300127099972023	SOX	State Compliance achieved	13-NOV-2023	State	September 2023 Chlorine Residual Monitoring. Return To Compliance. Full sample set collected 11/13/2023.
0433001OX11132340788	0433001270999102023	SOX	State Compliance achieved	13-NOV-2023	State	October 2023 Chlorine Residual Monitoring. Return To Compliance. Full sample set collected 11/13/2023.
0433001OX11132340785	04330013A800092023	SOX	State Compliance achieved	13-NOV-2023	State	September 2023 RTCR Monitoring. Return To Compliance. Full sample set collected 11/13/2023.
0433001OX11132340786	04330013A8000102023	SOX	State Compliance achieved	13-NOV-2023	State	October 2023 RTCR Monitoring. Return To Compliance. Full sample set collected 11/13/2023.
0433001OX11172239951	04330014B8000102022	SOX	State Compliance achieved	17-NOV-2022	State	2022 October RTCR Reporting. Return To Compliance. Lab results submitted LATE 11/17/2022.
0433001OX02282239439	043300127099912022	SOX	State Compliance achieved	28-FEB-2022	State	2022 January Chlorine Residual M/R. Return To Compliance. Full sample set collected 02/28/2022.
0433001OX06192037782	04330014B800052020	SOX	State Compliance achieved	19-JUN-2020	State	2020 May RTCR. Return To Compliance. Lab results received LATE 06/19/2020.
0433001OX02131335085	043300103102512008	SOX	State Compliance achieved	13-FEB-2013	State	Fluoride sample collected on 11/28/2012.
0433001OX4/13/2007	043300124310042004	SOX	State Compliance achieved	13-APR-2007	State	hostoric rtcs
0433001OX4/13/2007	043300171700072000	SOX	State Compliance achieved	13-APR-2007	State	hostoric rtcs
0433001OX4/13/2007	0433001223100102004	SOX	State Compliance achieved	13-APR-2007	State	hostoric rtcs
0433001OX4/13/2007	0433001243100112004	SOX	State Compliance achieved	13-APR-2007	State	hostoric rtcs
0433001OX4/13/2007	043300125310071996	SOX	State Compliance achieved	13-APR-2007	State	hostoric rtcs
0433001OX4/13/2007	043300123310092002	SOX	State Compliance achieved	13-APR-2007	State	hostoric rtcs
0433001OX4/13/2007	043300123310032002	SOX	State Compliance achieved	13-APR-2007	State	hostoric rtcs
0433001OX3/16/2007	043300171700072006	SOX	State Compliance achieved	16-MAR-2007	State	-
0433001OX3/16/2007	043300171700072005	SOX	State Compliance achieved	16-MAR-2007	State	-
0433001OX12/14/2004	043300103294612001	SOX	State Compliance achieved	14-DEC-2004	State	-
0433001OX12/14/2004	043300103293112001	SOX	State Compliance achieved	14-DEC-2004	State	-
0433001OX12/14/2004	043300103211012001	SOX	State Compliance achieved	14-DEC-2004	State	-
0433001OX12/14/2004	043300103210512001	SOX	State Compliance achieved	14-DEC-2004	State	-
0433001OX12/14/2004	043300103206312001	SOX	State Compliance achieved	14-DEC-2004	State	-
0433001OX12/14/2004	043300103204612001	SOX	State Compliance achieved	14-DEC-2004	State	-
0433001OX12/14/2004	043300103203612001	SOX	State Compliance achieved	14-DEC-2004	State	-
0433001OX12/14/2004	043300103204012001	SOX	State Compliance achieved	14-DEC-2004	State	-
0433001OX12/14/2004	043300103102412001	SOX	State Compliance achieved	14-DEC-2004	State	-
0433001OX12/14/2004	043300103203412001	SOX	State Compliance achieved	14-DEC-2004	State	-
0433001OX12/14/2004	043300103203112001	SOX	State Compliance achieved	14-DEC-2004	State	-
0592214	043300171700072002	SOX	State Compliance achieved	04-AUG-2003	State	CCR received for violation year with proof of publication and acceptable quality.
0433001OX8/13/2002	043300103102512001	SOX	State Compliance achieved	13-AUG-2002	State	-

1 - 35 of 35

All Facilities

Facility Name	Facility ID	Is Source	Facility Type Description	Water Type Description	Availability Description	Facility Activity Status
Charley Day Spring	0433001GW006	Yes	Well	Ground water	Other	Inactive
Big Dodson Spring - Building 419	0433001GW005	Yes	Well	Ground water	Permanent	Active
Little Dodson Spring - Building 418	0433001GW004	Yes	Well	Ground water	Permanent	Active
Well #5 - Building 422	0433001GW003	Yes	Well	Ground water	Permanent	Active
Well #4 - Building 409	0433001GW002	Yes	Well	Ground water	Permanent	Active
Well #6- Building 423	0433001GW001	Yes	Well	Ground water	Permanent	Active
Entry Point to for TP001	0433001EP001	No	Common Headers	-	-	Active
PWS# 0433001 distribution system	0433001DS001	No	Distribution System/Zone	-	-	Active
Booster Pumps (2)	0433001PF001	No	Pump Facility	-	-	Active
Elevated Storage Tank 1	0433001ST001	No	Storage	-	-	Active
Elevated Storage Tank 2	0433001ST002	No	Storage	-	-	Active
Ground Storage Tank	0433001ST003	No	Storage	-	-	Active
Treatment plant for all sources.	0433001TP001	No	Treatment Plant	-	-	Active

1 - 13 of 13

Treatment Processes

Facility Name	Facility ID	Treatment Process	Treatment Objective
Treatment plant for all sources.	0433001TP001	Hypochlorination, Pre	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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