Safe Drinking Water Information System (SDWIS) Federal Reporting Services

Your Drinking Water Query results from SDWIS Fed Reporting Services

PWS ID	NN0433016
PWS Name	Shonto Preparatory Boarding School BIA
PWS Type	Community water system
Owner Type	Federal government
Primary Source	Ground water
Primacy Type	Tribal
Is Wholesaler?	No
Population Served	664
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	04330164B800012024	Returned to Compliance	01-JAN-2024	-	No
RPT	Report Sample Result/Fail Monitor (RTCR)	Revised Total Coliform Rule	Revised Total Coliform Rule	04330164B8000102023	Returned to Compliance	01-OCT-2023	-	No
RPT	Report Sample Result/Fail Monitor (RTCR)	Revised Total Coliform Rule	Revised Total Coliform Rule	04330164B8000102022	Returned to Compliance	01-OCT-2022	-	No
RPT	Report Sample Result/Fail Monitor (RTCR)	Revised Total Coliform Rule	Revised Total Coliform Rule	04330164B800052020	Returned to Compliance	01-MAY-2020	-	No
MR	Monitoring, Source Water (GWR)	Ground Water Rule	E. COLI	043301634301422018	Returned to Compliance	01-FEB-2018	-	No
Other	Sample Siting Plan Errors (RTCR)	Revised Total Coliform Rule	Revised Total Coliform Rule	04330165A800042016	Returned to Compliance	01-APR-2016	-	No
MR	Monitoring, Routine Minor (TCR)	Total Coliform Rule	Coliform (TCR)	0433016243100112014	Returned to Compliance	01-NOV-2014	30-NOV-2014	No
MR	Failure Submit IDSE/Subpart V Plan Rpt	Stage 2 Disinfectants and Disinfection Byproducts Rule	Stage 2 Disinfectants and Disinfection Byproducts Rule	0433016350600102013	Returned to Compliance	01-OCT-2013	-	No
MR	Monitoring, Routine Major (TCR)	Total Coliform Rule	Coliform (TCR)	0433016233100122012	Returned to Compliance	01-DEC-2012	31-DEC-2012	No
MR	Monitoring and Reporting (DBP)	Stage 1 Disinfectants and Disinfection Byproducts Rule	Total Haloacetic Acids (HAA5)	043301627245612010	Returned to Compliance	01-JAN-2010	31-DEC-2010	No
MR	Monitoring and Reporting (DBP)	Stage 1 Disinfectants and Disinfection Byproducts Rule	TTHM	043301627295012010	Returned to Compliance	01-JAN-2010	31-DEC-2010	No
MR	Monitoring, Regular	Inorganic Chemicals	Cadmium	043301603101512008	Returned to Compliance	01-JAN-2008	31-DEC-2010	No
MR	Monitoring, Regular	Inorganic Chemicals	Barium	043301603101012008	Returned to Compliance	01-JAN-2008	31-DEC-2010	No
MR	Monitoring, Regular	Arsenic Rule	Arsenic	043301603100512008	Returned to Compliance	01-JAN-2008	31-DEC-2010	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	2,3,7,8-TCDD	043301603206312008	Returned to Compliance	01-JAN-2008	31-DEC-2010	No
MR	Monitoring, Regular	Inorganic Chemicals	Thallium, Total	043301603108512008	Returned to Compliance	01-JAN-2008	31-DEC-2010	No
MR	Monitoring, Regular	Inorganic Chemicals	Beryllium, Total	043301603107512008	Returned to Compliance	01-JAN-2008	31-DEC-2010	No
MR	Monitoring, Regular	Inorganic Chemicals	CYANIDE	043301603102412008	Returned to Compliance	01-JAN-2008	31-DEC-2010	No
MR	Monitoring, Regular	Inorganic Chemicals	Mercury	043301603103512008	Returned to Compliance	01-JAN-2008	31-DEC-2010	No
MR	Monitoring, Regular	Inorganic Chemicals	Selenium	043301603104512008	Returned to Compliance	01-JAN-2008	31-DEC-2010	No
MR	Monitoring, Regular	Inorganic Chemicals	Chromium	043301603102012008	Returned to Compliance	01-JAN-2008	31-DEC-2010	No
MR	Monitoring, Regular	Inorganic Chemicals	Antimony, Total	043301603107412008	Returned to Compliance	01-JAN-2008	31-DEC-2010	No
MR	Monitoring, Regular	Inorganic Chemicals	Fluoride	043301603102512008	Returned to Compliance	01-JAN-2008	31-DEC-2010	No
Other	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	Consumer Confidence Rule	043301671700072006	Returned to Compliance	01-JUL-2006	-	No
Other	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	Consumer Confidence Rule	043301671700072005	Returned to Compliance	01-JUL-2005	-	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	ETHYLENE DIBROMIDE	043301603294612004	Returned to Compliance	01-JAN-2004	31-DEC-2004	No
MR	Follow-up Or Routine LCR Tap M/R	Lead and Copper Rule	Lead and Copper Rule	043301652500012004	Returned to Compliance	01-JAN-2004	-	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Styrene	043301603299612004	Returned to Compliance	01-JAN-2004	31-DEC-2004	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Ethylbenzene	043301603299212004	Returned to Compliance	01-JAN-2004	31-DEC-2004	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Toluene	043301603299112004	Returned to Compliance	01-JAN-2004	31-DEC-2004	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Benzene	043301603299012004	Returned to Compliance	01-JAN-2004	31-DEC-2004	No
MR	Monitoring, Regular	Volatile Organic Chemicals	CHLOROBENZENE	043301603298912004	Returned to Compliance	01-JAN-2004	31-DEC-2004	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Tetrachloroethylene	043301603298712004	Returned to Compliance	01-JAN-2004	31-DEC-2004	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,1,2-Trichloroethane	043301603298512004	Returned to Compliance	01-JAN-2004	31-DEC-2004	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Trichloroethylene	043301603298412004	Returned to Compliance	01-JAN-2004	31-DEC-2004	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,2-Dichloropropane	043301603298312004	Returned to Compliance	01-JAN-2004	31-DEC-2004	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Carbon tetrachloride	043301603298212004	Returned to Compliance	01-JAN-2004	31-DEC-2004	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,1,1-Trichloroethane	043301603298112004	Returned to Compliance	01-JAN-2004	31-DEC-2004	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,2-Dichloroethane	043301603298012004	Returned to Compliance	01-JAN-2004	31-DEC-2004	No
MR	Monitoring, Regular	Volatile Organic Chemicals	trans-1,2-Dichloroethylene	043301603297912004	Returned to Compliance	01-JAN-2004	31-DEC-2004	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,1-Dichloroethylene	043301603297712004	Returned to Compliance	01-JAN-2004	31-DEC-2004	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Vinyl chloride	043301603297612004	Returned to Compliance	01-JAN-2004	31-DEC-2004	No
MR	Monitoring, Regular	Volatile Organic Chemicals	p-Dichlorobenzene	043301603296912004	Returned to Compliance	01-JAN-2004	31-DEC-2004	No
MR	Monitoring, Regular	Volatile Organic Chemicals	o-Dichlorobenzene	043301603296812004	Returned to Compliance	01-JAN-2004	31-DEC-2004	No
MR	Monitoring, Regular	Volatile Organic Chemicals	DICHLOROMETHANE	043301603296412004	Returned to Compliance	01-JAN-2004	31-DEC-2004	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Chlordane	043301603295912004	Returned to Compliance	01-JAN-2004	31-DEC-2004	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Xylenes, Total	043301603295512004	Returned to Compliance	01-JAN-2004	31-DEC-2004	No
MR	Monitoring, Regular	Volatile Organic Chemicals	cis-1,2-Dichloroethylene	043301603238012004	Returned to Compliance	01-JAN-2004	31-DEC-2004	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,2,4-Trichlorobenzene	043301603237812004	Returned to Compliance	01-JAN-2004	31-DEC-2004	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Pentachlorophenol	043301603232612004	Returned to Compliance	01-JAN-2004	31-DEC-2004	No

1 - 50 of 80

Enforcement Actions

Latest Enforcement ID	Associated To Violation ID	Enforcement Action Type Code	Enforcement Action Description	Enforcement Date	Originator Description	Enforcement Comment
0433016OX02202441037	04330164B800012024	SOX	State Compliance achieved	20-FEB-2024	State	January 2024 RTCR Reporting. Return To Compliance. Lab results submitted LATE 02/20/2024.
0433016OX11302340797	04330164B8000102023	SOX	State Compliance achieved	30-NOV-2023	State	October 2023 RTCR Reporting. Return To Compliance. Lab results submitted LATE 11/30/2023.
0433016OX11172239959	04330164B8000102022	SOX	State Compliance achieved	17-NOV-2022	State	2022 October RTCR Reporting. Return To Compliance. Lab results submitted LATE 11/17/2022.
0433016OX06192037792	04330164B800052020	SOX	State Compliance achieved	19-JUN-2020	State	2020 May RTCR. Return To Compliance. Lab results received LATE 06/19/2020.
0433016FJ05311834536	043301634301422018	SFJ	State Formal Notice of Violation issued	31-MAY-2018	State	NOV issued for failure to collect groundwater samples, as a result of reporting a positive bactee sample, not all gw samples were collected.
0433016OX12201734142	04330165A800042016	SOX	State Compliance achieved	20-DEC-2017	State	Site plan submitted and approved.
0433016OX12201736585	0433016350600102013	SOX	State Compliance achieved	20-DEC-2017	State	Plan submitted and approved.
0433016OX03051530399	0433016243100112014	SOX	State Compliance achieved	05-MAR-2015	State	RTC, public notification was received, system was sampled routinely during December 2014.
0433016OX01141323735	0433016233100122012	SOX	State Compliance achieved	14-JAN-2013	State	2012 Dec TCR M/R. RTC, received BIA TCR results on 01-14-2013.
0433016OX12191223224	043301603206312008	SOX	State Compliance achieved	19-DEC-2012	State	2008-2010 Dioxin M/R. Dioxin Sample rec'd on sampled on 11/26/12 and data rec'd in office on 12/19/12. RTC for this contaminant.
0433016OX11141116210	043301603100512008	SOX	State Compliance achieved	14-NOV-2011	State	RTC, samples collected 10/15/09.
0433016OX11141116211	043301603101012008	SOX	State Compliance achieved	14-NOV-2011	State	RTC, samples collected 10/15/09.
0433016OX11141116212	043301603101512008	SOX	State Compliance achieved	14-NOV-2011	State	RTC, samples collected 10/15/09.
0433016OX11141116213	043301603102012008	SOX	State Compliance achieved	14-NOV-2011	State	RTC, samples collected 10/15/09.
0433016OX11141116219	043301603102412008	SOX	State Compliance achieved	14-NOV-2011	State	RTC, samples collected 10/15/09.
0433016OX11141116214	043301603102512008	SOX	State Compliance achieved	14-NOV-2011	State	RTC, samples collected 10/15/09.
0433016OX11141116221	043301627295012010	SOX	State Compliance achieved	14-NOV-2011	State	RTC, samples collected for DBPs during 2008. Next set of samples are due prior to 9/30/2011.
0433016OX11141116216	043301603104512008	SOX	State Compliance achieved	14-NOV-2011	State	RTC, samples collected 10/15/09.
0433016OX11141116217	043301603107412008	SOX	State Compliance achieved	14-NOV-2011	State	RTC, samples collected 10/15/09.
0433016OX11141116218	043301603107512008	SOX	State Compliance achieved	14-NOV-2011	State	RTC, samples collected 10/15/09.
0433016OX11141116220	043301603108512008	SOX	State Compliance achieved	14-NOV-2011	State	RTC, samples collected 10/15/09.
0433016OX11141116222	043301627245612010	SOX	State Compliance achieved	14-NOV-2011	State	RTC, samples collected for DBPs during 2008. Next set of samples are due prior to 9/30/2011.
0433016OX11141116215	043301603103512008	SOX	State Compliance achieved	14-NOV-2011	State	RTC, samples collected 10/15/09.
0433016OX03/09/2007	043301671700072006	SOX	State Compliance achieved	09-MAR-2007	State	2004, 2005 and 2006 CCRs submitted.
0433016OX03/09/2007	043301671700072005	SOX	State Compliance achieved	09-MAR-2007	State	2004, 2005 and 2006 CCRs submitted.
0433016OX12/20/2005	043301652500012004	SOX	State Compliance achieved	20-DEC-2005	State	Samples collected on December 20, 2005.
0433016OX02/14/2005	043301603201512004	SOX	State Compliance achieved	14-FEB-2005	State	Samples collected on February 14, 2005.
0433016OX02/14/2005	043301603202012004	SOX	State Compliance achieved	14-FEB-2005	State	Samples collected on February 14, 2005.
0433016OX02/14/2005	043301603203112004	SOX	State Compliance achieved	14-FEB-2005	State	Samples collected on February 14, 2005.
0433016OX02/14/2005	043301603203212004	SOX	State Compliance achieved	14-FEB-2005	State	Samples collected on February 14, 2005.
0433016OX02/14/2005	043301603203312004	SOX	State Compliance achieved	14-FEB-2005	State	Samples collected on February 14, 2005.
0433016OX02/14/2005	043301603203412004	SOX	State Compliance achieved	14-FEB-2005	State	Samples collected on February 14, 2005.
0433016OX02/14/2005	043301603203512004	SOX	State Compliance achieved	14-FEB-2005	State	Samples collected on February 14, 2005.
0433016OX02/14/2005	043301603203612004	SOX	State Compliance achieved	14-FEB-2005	State	Samples collected on February 14, 2005.
0433016OX02/14/2005	043301603203712004	SOX	State Compliance achieved	14-FEB-2005	State	Samples collected on February 14, 2005.
0433016OX02/14/2005	043301603203912004	SOX	State Compliance achieved	14-FEB-2005	State	Samples collected on February 14, 2005.
0433016OX02/14/2005	043301603204012004	SOX	State Compliance achieved	14-FEB-2005	State	Samples collected on February 14, 2005.
0433016OX02/14/2005	043301603204112004	SOX	State Compliance achieved	14-FEB-2005	State	Samples collected on February 14, 2005.
0433016OX02/14/2005	043301603204212004	SOX	State Compliance achieved	14-FEB-2005	State	Samples collected on February 14, 2005.
0433016OX02/14/2005	043301603204312004	SOX	State Compliance achieved	14-FEB-2005	State	Samples collected on February 14, 2005.
0433016OX02/14/2005	043301603204412004	SOX	State Compliance achieved	14-FEB-2005	State	Samples collected on February 14, 2005.
0433016OX02/14/2005	043301603204612004	SOX	State Compliance achieved	14-FEB-2005	State	Samples collected on February 14, 2005.
0433016OX02/14/2005	043301603204712004	SOX	State Compliance achieved	14-FEB-2005	State	Samples collected on February 14, 2005.
0433016OX02/14/2005	043301603205012004	SOX	State Compliance achieved	14-FEB-2005	State	Samples collected on February 14, 2005.
0433016OX02/14/2005	043301603205112004	SOX	State Compliance achieved	14-FEB-2005	State	Samples collected on February 14, 2005.
0433016OX02/14/2005	043301603206312004	SOX	State Compliance achieved	14-FEB-2005	State	Samples collected on February 14, 2005.
0433016OX02/14/2005	043301603206512004	SOX	State Compliance achieved	14-FEB-2005	State	Samples collected on February 14, 2005.
0433016OX02/14/2005	043301603206712004	SOX	State Compliance achieved	14-FEB-2005	State	Samples collected on February 14, 2005.
0433016OX02/14/2005	043301603210512004	SOX	State Compliance achieved	14-FEB-2005	State	Samples collected on February 14, 2005.
0433016OX02/14/2005	043301603211012004	SOX	State Compliance achieved	14-FEB-2005	State	Samples collected on February 14, 2005.

1 - 50 of 80

All Facilities

Facility Name	Facility ID	Is Source	Facility Type Description	Water Type Description	Availability Description	Facility Activity Status
SHONTO PM2 (Well #1 ; west)	0433016GW001	Yes	Well	Ground water	Permanent	Active
SHONTO PM4 (Well #3 ; north)	0433016GW003	Yes	Well	Ground water	Permanent	Active
SHONTO PM3 (Well #2 ; south)	0433016GW002	Yes	Well	Ground water	Permanent	Active
Well #1 Entry Point (West ; SHONTO PM2)	0433016EP001	No	Common Headers	-	-	Active
Well #2 Entry Point (South ; SHONTO PM3)	0433016EP002	No	Common Headers	-	-	Active
Well #3 Entry Point (North ; SHONTO PM4)	0433016EP003	No	Common Headers	-	-	Active
Shonto School Distribution System	0433016DS001	No	Distribution System/Zone	-	-	Active
Shonto BIA #1 Storage Tank	0433016ST001	No	Storage	-	-	Active
Shonto BIA #2 Storage Tank	0433016ST002	No	Storage	-	-	Active
Shonto BIA #3 Storage Tank	0433016ST003	No	Storage	-	-	Active
SHONTO PM2 Treatment (Well #1 ; GW001)	0433016TP001	No	Treatment Plant	-	-	Active
SHONTO PM3 Treatment (Well #2 ; GW002)	0433016TP002	No	Treatment Plant	-	-	Active
SHONTO PM4 Treatment (Well #3 ; GW003)	0433016TP003	No	Treatment Plant	-	-	Active

1 - 13 of 13

Treatment Processes

Facility Name	Facility ID	Treatment Process	Treatment Objective
SHONTO PM2 Treatment (Well #1 ; GW001)	0433016TP001	Hypochlorination, Post	Disinfection
SHONTO PM2 Treatment (Well #1 ; GW001)	0433016TP001	Sequestration	Iron removal
SHONTO PM3 Treatment (Well #2 ; GW002)	0433016TP002	Hypochlorination, Post	Disinfection
SHONTO PM3 Treatment (Well #2 ; GW002)	0433016TP002	Sequestration	Iron removal
SHONTO PM4 Treatment (Well #3 ; GW003)	0433016TP003	Hypochlorination, Post	Disinfection
SHONTO PM4 Treatment (Well #3 ; GW003)	0433016TP003	Sequestration	Iron removal

1 - 6 of 6

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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