Safe Drinking Water Information System (SDWIS) Federal Reporting Services

Your Drinking Water Query results from SDWIS Fed Reporting Services

PWS ID	NN3503012
PWS Name	Crystal NTUA
PWS Type	Community water system
Owner Type	Tribal Government
Primary Source	Ground water
Primacy Type	Tribal
Is Wholesaler?	No
Population Served	715
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, Routine (IDSE)	Stage 2 Disinfectants and Disinfection Byproducts Rule	Total Haloacetic Acids (HAA5)	350301230245612020	Returned to Compliance	01-JAN-2020	31-DEC-2020	No
MR	Monitoring, Routine (IDSE)	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	350301230295012020	Returned to Compliance	01-JAN-2020	31-DEC-2020	No
Other	Sample Siting Plan Errors (RTCR)	Revised Total Coliform Rule	Revised Total Coliform Rule	35030125A800042016	Returned to Compliance	01-APR-2016	-	No
MR	Failure Submit IDSE/Subpart V Plan Rpt	Stage 2 Disinfectants and Disinfection Byproducts Rule	Stage 2 Disinfectants and Disinfection Byproducts Rule	3503012350600102013	Returned to Compliance	01-OCT-2013	-	No
MR	Monitoring, Routine Major (TCR)	Total Coliform Rule	Coliform (TCR)	3503012233100122012	Returned to Compliance	01-DEC-2012	31-DEC-2012	No
MR	Monitoring, Routine Major (TCR)	Total Coliform Rule	Coliform (TCR)	3503012233100112012	Returned to Compliance	01-NOV-2012	30-NOV-2012	No
MR	Monitoring, Regular	Nitrate Rule	Nitrite	350301203104112010	Returned to Compliance	01-JAN-2010	31-DEC-2010	No
MR	Monitoring, Routine Major (TCR)	Total Coliform Rule	Coliform (TCR)	350301223310012006	Returned to Compliance	01-JAN-2006	31-JAN-2006	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Trichloroethylene	350301203298412005	Returned to Compliance	01-JAN-2005	31-DEC-2010	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,2-Dichloropropane	350301203298312005	Returned to Compliance	01-JAN-2005	31-DEC-2010	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Carbon tetrachloride	350301203298212005	Returned to Compliance	01-JAN-2005	31-DEC-2010	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,1,1-Trichloroethane	350301203298112005	Returned to Compliance	01-JAN-2005	31-DEC-2010	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,2-Dichloroethane	350301203298012005	Returned to Compliance	01-JAN-2005	31-DEC-2010	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,1-Dichloroethylene	350301203297712005	Returned to Compliance	01-JAN-2005	31-DEC-2010	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Vinyl chloride	350301203297612005	Returned to Compliance	01-JAN-2005	31-DEC-2010	No
MR	Monitoring, Regular	Volatile Organic Chemicals	p-Dichlorobenzene	350301203296912005	Returned to Compliance	01-JAN-2005	31-DEC-2010	No
MR	Monitoring, Regular	Volatile Organic Chemicals	o-Dichlorobenzene	350301203296812005	Returned to Compliance	01-JAN-2005	31-DEC-2010	No
MR	Monitoring, Regular	Volatile Organic Chemicals	DICHLOROMETHANE	350301203296412005	Returned to Compliance	01-JAN-2005	31-DEC-2010	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Xylenes, Total	350301203295512005	Returned to Compliance	01-JAN-2005	31-DEC-2010	No
MR	Monitoring, Regular	Volatile Organic Chemicals	cis-1,2-Dichloroethylene	350301203238012005	Returned to Compliance	01-JAN-2005	31-DEC-2010	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,1,2-Trichloroethane	350301203298512005	Returned to Compliance	01-JAN-2005	31-DEC-2010	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Tetrachloroethylene	350301203298712005	Returned to Compliance	01-JAN-2005	31-DEC-2010	No
MR	Monitoring, Regular	Volatile Organic Chemicals	CHLOROBENZENE	350301203298912005	Returned to Compliance	01-JAN-2005	31-DEC-2010	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Benzene	350301203299012005	Returned to Compliance	01-JAN-2005	31-DEC-2010	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Toluene	350301203299112005	Returned to Compliance	01-JAN-2005	31-DEC-2010	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Ethylbenzene	350301203299212005	Returned to Compliance	01-JAN-2005	31-DEC-2010	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Styrene	350301203299612005	Returned to Compliance	01-JAN-2005	31-DEC-2010	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,2,4-Trichlorobenzene	350301203237812005	Returned to Compliance	01-JAN-2005	31-DEC-2010	No
MR	Monitoring, Regular	Volatile Organic Chemicals	trans-1,2-Dichloroethylene	350301203297912005	Returned to Compliance	01-JAN-2005	31-DEC-2010	No
MR	Monitoring, Regular	Inorganic Chemicals	Chromium	350301203102012004	Returned to Compliance	01-JAN-2004	31-DEC-2004	No
MR	Monitoring, Regular	Inorganic Chemicals	Selenium	350301203104512004	Returned to Compliance	01-JAN-2004	31-DEC-2004	No
MR	Monitoring, Regular	Nitrate Rule	Nitrate-Nitrite	350301203103812004	Returned to Compliance	01-JAN-2004	31-DEC-2004	No
MR	Monitoring, Regular	Inorganic Chemicals	Mercury	350301203103512004	Returned to Compliance	01-JAN-2004	31-DEC-2004	No
MR	Monitoring, Regular	Inorganic Chemicals	CYANIDE	350301203102412004	Returned to Compliance	01-JAN-2004	31-DEC-2004	No
MR	Monitoring, Regular	Inorganic Chemicals	Cadmium	350301203101512004	Returned to Compliance	01-JAN-2004	31-DEC-2004	No
MR	Monitoring, Regular	Inorganic Chemicals	Antimony, Total	350301203107412004	Returned to Compliance	01-JAN-2004	31-DEC-2004	No
MR	Monitoring, Regular	Arsenic Rule	Arsenic	350301203100512004	Returned to Compliance	01-JAN-2004	31-DEC-2004	No
MR	Monitoring, Regular	Inorganic Chemicals	Thallium, Total	350301203108512004	Returned to Compliance	01-JAN-2004	31-DEC-2004	No
MR	Monitoring, Regular	Inorganic Chemicals	Beryllium, Total	350301203107512004	Returned to Compliance	01-JAN-2004	31-DEC-2004	No
MR	Monitoring, Regular	Inorganic Chemicals	Barium	350301203101012004	Returned to Compliance	01-JAN-2004	31-DEC-2004	No
MR	Monitoring, Routine Major (TCR)	Total Coliform Rule	Coliform (TCR)	3503012233100102002	Returned to Compliance	01-OCT-2002	31-OCT-2002	No
MR	Monitoring, Routine Major (TCR)	Total Coliform Rule	Coliform (TCR)	0350050	Known	01-OCT-2002	31-OCT-2002	No

1 - 42 of 42

Enforcement Actions

Latest Enforcement ID	Associated To Violation ID	Enforcement Action Type Code	Enforcement Action Description	Enforcement Date	Originator Description	Enforcement Comment
3503012OX09302542925	35030125A800042016	SOX	State Compliance achieved	30-SEP-2025	State	RTCR Sample Site Plan received and approved.
3503012OX02182541662	3503012350600102013	SOX	State Compliance achieved	18-FEB-2025	State	DBP Site sample plan submitted and approved.
3503012OX07062138888	350301230295012020	SOX	State Compliance achieved	06-JUL-2021	State	2020 DBPs Stage 2 M/R. Return To Compliance. Full sample sets collected 07/06/2021.
3503012OX07062138889	350301230245612020	SOX	State Compliance achieved	06-JUL-2021	State	2020 DBPs Stage 2 M/R. Return To Compliance. Full sample sets collected 07/06/2021.
3503012OX01111323617	3503012233100122012	SOX	State Compliance achieved	11-JAN-2013	State	2012 Dec TCR M/R. RTC, received NTUA TCR results on 01-11-2013.
3503012OX12111223699	3503012233100112012	SOX	State Compliance achieved	11-DEC-2012	State	2012 Nov TCR M/R. RTC, received NTUA TCR results on 12-11-2012.
3503012OX02211219375	350301203297612005	SOX	State Compliance achieved	21-FEB-2012	State	RTC, VOC waiver granted. The next set of samples are due during 2011-2013.
3503012OX02211219381	350301203299612005	SOX	State Compliance achieved	21-FEB-2012	State	RTC, VOC waiver granted. The next set of samples are due during 2011-2013.
3503012OX02211219378	350301203299212005	SOX	State Compliance achieved	21-FEB-2012	State	RTC, VOC waiver granted. The next set of samples are due during 2011-2013.
3503012OX02211219383	350301203299112005	SOX	State Compliance achieved	21-FEB-2012	State	RTC, VOC waiver granted. The next set of samples are due during 2011-2013.
3503012OX02211219368	350301203299012005	SOX	State Compliance achieved	21-FEB-2012	State	RTC, VOC waiver granted. The next set of samples are due during 2011-2013.
3503012OX02211219379	350301203298912005	SOX	State Compliance achieved	21-FEB-2012	State	RTC, VOC waiver granted. The next set of samples are due during 2011-2013.
3503012OX02211219382	350301203298712005	SOX	State Compliance achieved	21-FEB-2012	State	RTC, VOC waiver granted. The next set of samples are due during 2011-2013.
3503012OX02211219388	350301203298512005	SOX	State Compliance achieved	21-FEB-2012	State	RTC, VOC waiver granted. The next set of samples are due during 2011-2013.
3503012OX02211219371	350301203298412005	SOX	State Compliance achieved	21-FEB-2012	State	RTC, VOC waiver granted. The next set of samples are due during 2011-2013.
3503012OX02211219377	350301203298312005	SOX	State Compliance achieved	21-FEB-2012	State	RTC, VOC waiver granted. The next set of samples are due during 2011-2013.
3503012OX02211219369	350301203298212005	SOX	State Compliance achieved	21-FEB-2012	State	RTC, VOC waiver granted. The next set of samples are due during 2011-2013.
3503012OX02211219374	350301203298112005	SOX	State Compliance achieved	21-FEB-2012	State	RTC, VOC waiver granted. The next set of samples are due during 2011-2013.
3503012OX02211219370	350301203298012005	SOX	State Compliance achieved	21-FEB-2012	State	RTC, VOC waiver granted. The next set of samples are due during 2011-2013.
3503012OX02211219384	350301203297912005	SOX	State Compliance achieved	21-FEB-2012	State	RTC, VOC waiver granted. The next set of samples are due during 2011-2013.
3503012OX02211219387	350301203237812005	SOX	State Compliance achieved	21-FEB-2012	State	RTC, VOC waiver granted. The next set of samples are due during 2011-2013.
3503012OX02211219376	350301203238012005	SOX	State Compliance achieved	21-FEB-2012	State	RTC, VOC waiver granted. The next set of samples are due during 2011-2013.
3503012OX02211219385	350301203295512005	SOX	State Compliance achieved	21-FEB-2012	State	RTC, VOC waiver granted. The next set of samples are due during 2011-2013.
3503012OX02211219386	350301203296412005	SOX	State Compliance achieved	21-FEB-2012	State	RTC, VOC waiver granted. The next set of samples are due during 2011-2013.
3503012OX02211219380	350301203296812005	SOX	State Compliance achieved	21-FEB-2012	State	RTC, VOC waiver granted. The next set of samples are due during 2011-2013.
3503012OX02211219372	350301203296912005	SOX	State Compliance achieved	21-FEB-2012	State	RTC, VOC waiver granted. The next set of samples are due during 2011-2013.
3503012OX02211219373	350301203297712005	SOX	State Compliance achieved	21-FEB-2012	State	RTC, VOC waiver granted. The next set of samples are due during 2011-2013.
3503012OX10211112842	350301203104112010	SOX	State Compliance achieved	21-OCT-2011	State	RTC, NTUA had issues with their analyzer. They have changed out the columns and had the equipment calibrated. PWSSP invalidated results. Pursuant to Section 408 (A)(1), the sampling frequency is specified by the Director.
3503012FJ03/22/2007	3503012233100102002	SFJ	State Formal Notice of Violation issued	22-MAR-2007	State	NOV for failure to collect a routine monthly bactee sample and failure to issue a public notice.
3503012OX03/20/2007	350301223310012006	SOX	State Compliance achieved	20-MAR-2007	State	Results received. Sampled 3/31/2003 (sample #06A55).
3503012OX5/18/2005	350301203100512004	SOX	State Compliance achieved	18-MAY-2005	State	RTC, chemical waiver for IOCs issued.
3503012OX5/18/2005	350301203101012004	SOX	State Compliance achieved	18-MAY-2005	State	RTC, chemical waiver for IOCs issued.
3503012OX5/18/2005	350301203102012004	SOX	State Compliance achieved	18-MAY-2005	State	RTC, chemical waiver for IOCs issued.
3503012OX5/18/2005	350301203102412004	SOX	State Compliance achieved	18-MAY-2005	State	RTC, chemical waiver for IOCs issued.
3503012OX5/18/2005	350301203101512004	SOX	State Compliance achieved	18-MAY-2005	State	RTC, chemical waiver for IOCs issued.
3503012OX5/18/2005	350301203108512004	SOX	State Compliance achieved	18-MAY-2005	State	RTC, chemical waiver for IOCs issued.
3503012OX5/18/2005	350301203107512004	SOX	State Compliance achieved	18-MAY-2005	State	RTC, chemical waiver for IOCs issued.
3503012OX5/18/2005	350301203107412004	SOX	State Compliance achieved	18-MAY-2005	State	RTC, chemical waiver for IOCs issued.
3503012OX5/18/2005	350301203104512004	SOX	State Compliance achieved	18-MAY-2005	State	RTC, chemical waiver for IOCs issued.
3503012OX5/18/2005	350301203103512004	SOX	State Compliance achieved	18-MAY-2005	State	RTC, chemical waiver for IOCs issued.
3503012OX10/4/2004	350301203103812004	SOX	State Compliance achieved	04-OCT-2004	State	RTC, sample results received 10/04/2004.

1 - 41 of 41

All Facilities

Facility Name	Facility ID	Is Source	Facility Type Description	Water Type Description	Availability Description	Facility Activity Status
18T-531 (CRYSTAL INFILTRATION GALLERY)	3503012GW002	Yes	Well	Ground water	Other	Inactive
18-0660 (CRYSTAL 1)	3503012GW001	Yes	Well	Ground water	Permanent	Active
18-0660 Entry Point (Crystal 1)	3503012EP001	No	Common Headers	-	-	Active
NN3503012 NTUA Crystal Distribution System	3503012DS001	No	Distribution System/Zone	-	-	Active
Yazzie Booster Station	3503012PF001	No	Pump Facility	-	-	Active
Crystal Tank Booster #3	3503012PF002	No	Pump Facility	-	-	Active
Crystal #1 West Tank	3503012ST001	No	Storage	-	-	Active
Crystal #2 East Tank	3503012ST002	No	Storage	-	-	Active
Crystal #3 (Yazzie Springs) Tank	3503012ST003	No	Storage	-	-	Active
Crystal #4 North Tank	3503012ST004	No	Storage	-	-	Active
18-0660 Treatment (Crystal 1)	3503012TP001	No	Treatment Plant	-	-	Active

1 - 11 of 11

Treatment Processes

Facility Name	Facility ID	Treatment Process	Treatment Objective
18-0660 Treatment (Crystal 1)	3503012TP001	Hypochlorination, Post	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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