Safe Drinking Water Information System (SDWIS) Federal Reporting Services

Your Drinking Water Query results from SDWIS Fed Reporting Services

PWS ID	NN0403811
PWS Name	Hard Rock NTUA
PWS Type	Community water system
Owner Type	Tribal Government
Primary Source	Ground water
Primacy Type	Tribal
Is Wholesaler?	No
Population Served	982
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	TTHM	040381130295012020	Returned to Compliance	01-JAN-2020	31-DEC-2020	No
MR	Monitoring, Routine (IDSE)	Stage 2 Disinfectants and Disinfection Byproducts Rule	Total Haloacetic Acids (HAA5)	040381130245612020	Returned to Compliance	01-JAN-2020	31-DEC-2020	No
MR	Failure Submit IDSE/Subpart V Plan Rpt	Stage 2 Disinfectants and Disinfection Byproducts Rule	Stage 2 Disinfectants and Disinfection Byproducts Rule	0403811350600102013	Returned to Compliance	01-OCT-2013	-	No
MR	Monitoring, Routine Major (TCR)	Total Coliform Rule	Coliform (TCR)	0403811233100122012	Returned to Compliance	01-DEC-2012	31-DEC-2012	No
MR	Monitoring, Routine Major (TCR)	Total Coliform Rule	Coliform (TCR)	0403811233100112012	Returned to Compliance	01-NOV-2012	30-NOV-2012	No
MR	Monitoring, Regular	Nitrate Rule	Nitrite	040381103104112010	Returned to Compliance	01-JAN-2010	31-DEC-2010	No
MR	Monitoring, Regular	Inorganic Chemicals	Fluoride	040381103102512008	Returned to Compliance	01-JAN-2008	31-DEC-2010	No
MR	Monitoring, Regular	Inorganic Chemicals	Mercury	040381103103512008	Returned to Compliance	01-JAN-2008	31-DEC-2010	No
MR	Monitoring, Regular	Inorganic Chemicals	Antimony, Total	040381103107412008	Returned to Compliance	01-JAN-2008	31-DEC-2010	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Styrene	040381103299612008	Returned to Compliance	01-JAN-2008	31-DEC-2010	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Ethylbenzene	040381103299212008	Returned to Compliance	01-JAN-2008	31-DEC-2010	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Toluene	040381103299112008	Returned to Compliance	01-JAN-2008	31-DEC-2010	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Benzene	040381103299012008	Returned to Compliance	01-JAN-2008	31-DEC-2010	No
MR	Monitoring, Regular	Volatile Organic Chemicals	CHLOROBENZENE	040381103298912008	Returned to Compliance	01-JAN-2008	31-DEC-2010	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Tetrachloroethylene	040381103298712008	Returned to Compliance	01-JAN-2008	31-DEC-2010	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,1,2-Trichloroethane	040381103298512008	Returned to Compliance	01-JAN-2008	31-DEC-2010	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Trichloroethylene	040381103298412008	Returned to Compliance	01-JAN-2008	31-DEC-2010	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,2-Dichloropropane	040381103298312008	Returned to Compliance	01-JAN-2008	31-DEC-2010	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Carbon tetrachloride	040381103298212008	Returned to Compliance	01-JAN-2008	31-DEC-2010	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,1,1-Trichloroethane	040381103298112008	Returned to Compliance	01-JAN-2008	31-DEC-2010	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,2-Dichloroethane	040381103298012008	Returned to Compliance	01-JAN-2008	31-DEC-2010	No
MR	Monitoring, Regular	Volatile Organic Chemicals	trans-1,2-Dichloroethylene	040381103297912008	Returned to Compliance	01-JAN-2008	31-DEC-2010	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,1-Dichloroethylene	040381103297712008	Returned to Compliance	01-JAN-2008	31-DEC-2010	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Vinyl chloride	040381103297612008	Returned to Compliance	01-JAN-2008	31-DEC-2010	No
MR	Monitoring, Regular	Volatile Organic Chemicals	p-Dichlorobenzene	040381103296912008	Returned to Compliance	01-JAN-2008	31-DEC-2010	No
MR	Monitoring, Regular	Volatile Organic Chemicals	o-Dichlorobenzene	040381103296812008	Returned to Compliance	01-JAN-2008	31-DEC-2010	No
MR	Monitoring, Regular	Volatile Organic Chemicals	DICHLOROMETHANE	040381103296412008	Returned to Compliance	01-JAN-2008	31-DEC-2010	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Xylenes, Total	040381103295512008	Returned to Compliance	01-JAN-2008	31-DEC-2010	No
MR	Monitoring, Regular	Inorganic Chemicals	Chromium	040381103102012008	Returned to Compliance	01-JAN-2008	31-DEC-2010	No
MR	Monitoring, Regular	Volatile Organic Chemicals	cis-1,2-Dichloroethylene	040381103238012008	Returned to Compliance	01-JAN-2008	31-DEC-2010	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,2,4-Trichlorobenzene	040381103237812008	Returned to Compliance	01-JAN-2008	31-DEC-2010	No
MR	Monitoring, Regular	Inorganic Chemicals	Selenium	040381103104512008	Returned to Compliance	01-JAN-2008	31-DEC-2010	No
MR	Monitoring, Regular	Inorganic Chemicals	Beryllium, Total	040381103107512008	Returned to Compliance	01-JAN-2008	31-DEC-2010	No
MR	Monitoring, Regular	Inorganic Chemicals	Thallium, Total	040381103108512008	Returned to Compliance	01-JAN-2008	31-DEC-2010	No
MR	Monitoring, Regular	Arsenic Rule	Arsenic	040381103100512008	Returned to Compliance	01-JAN-2008	31-DEC-2010	No
MR	Monitoring, Regular	Inorganic Chemicals	Barium	040381103101012008	Returned to Compliance	01-JAN-2008	31-DEC-2010	No
MR	Monitoring, Regular	Inorganic Chemicals	Cadmium	040381103101512008	Returned to Compliance	01-JAN-2008	31-DEC-2010	No
MR	Monitoring, Regular	Inorganic Chemicals	CYANIDE	040381103102412008	Returned to Compliance	01-JAN-2008	31-DEC-2010	No
MR	Monitoring, Regular	Nitrate Rule	Nitrate	040381103104012006	Returned to Compliance	01-JAN-2006	31-DEC-2006	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Ethylbenzene	040381103299212005	Returned to Compliance	01-JAN-2005	31-DEC-2010	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Styrene	040381103299612005	Returned to Compliance	01-JAN-2005	31-DEC-2010	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,2,4-Trichlorobenzene	040381103237812005	Returned to Compliance	01-JAN-2005	31-DEC-2010	No
MR	Monitoring, Regular	Volatile Organic Chemicals	cis-1,2-Dichloroethylene	040381103238012005	Returned to Compliance	01-JAN-2005	31-DEC-2010	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Xylenes, Total	040381103295512005	Returned to Compliance	01-JAN-2005	31-DEC-2010	No
MR	Monitoring, Regular	Volatile Organic Chemicals	DICHLOROMETHANE	040381103296412005	Returned to Compliance	01-JAN-2005	31-DEC-2010	No
MR	Monitoring, Regular	Volatile Organic Chemicals	o-Dichlorobenzene	040381103296812005	Returned to Compliance	01-JAN-2005	31-DEC-2010	No
MR	Monitoring, Regular	Volatile Organic Chemicals	p-Dichlorobenzene	040381103296912005	Returned to Compliance	01-JAN-2005	31-DEC-2010	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Vinyl chloride	040381103297612005	Returned to Compliance	01-JAN-2005	31-DEC-2010	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,1-Dichloroethylene	040381103297712005	Returned to Compliance	01-JAN-2005	31-DEC-2010	No
MR	Monitoring, Regular	Volatile Organic Chemicals	trans-1,2-Dichloroethylene	040381103297912005	Returned to Compliance	01-JAN-2005	31-DEC-2010	No

1 - 50 of 62

Enforcement Actions

Latest Enforcement ID	Associated To Violation ID	Enforcement Action Type Code	Enforcement Action Description	Enforcement Date	Originator Description	Enforcement Comment
0403811OX03062542549	0403811350600102013	SOX	State Compliance achieved	06-MAR-2025	State	DBP Stage 2 Site Sample Plan submitted and approved.
0403811OX07132138872	040381130295012020	SOX	State Compliance achieved	13-JUL-2021	State	2020 DBPs Stage 2 M/R. Return To Compliance. Full sample sets collected 07/13/2021.
0403811OX07132138873	040381130245612020	SOX	State Compliance achieved	13-JUL-2021	State	2020 DBPs Stage 2 M/R. Return To Compliance. Full sample sets collected 07/13/2021.
0403811OX01111323597	0403811233100122012	SOX	State Compliance achieved	11-JAN-2013	State	2012 Dec TCR M/R. RTC, received NTUA TCR results on 01-11-2013.
0403811OX12111223679	0403811233100112012	SOX	State Compliance achieved	11-DEC-2012	State	2012 Nov TCR M/R. RTC, received NTUA TCR results on 12-11-2012.
0403811OX02211218961	040381103102512008	SOX	State Compliance achieved	21-FEB-2012	State	RTC, IOC and VOC waivers granted. The next set of samples are due during 2011-2013.
0403811OX02211218962	040381103103512008	SOX	State Compliance achieved	21-FEB-2012	State	RTC, IOC and VOC waivers granted. The next set of samples are due during 2011-2013.
0403811OX02211218963	040381103104512008	SOX	State Compliance achieved	21-FEB-2012	State	RTC, IOC and VOC waivers granted. The next set of samples are due during 2011-2013.
0403811OX02211218964	040381103107412008	SOX	State Compliance achieved	21-FEB-2012	State	RTC, IOC and VOC waivers granted. The next set of samples are due during 2011-2013.
0403811OX02211218965	040381103107512008	SOX	State Compliance achieved	21-FEB-2012	State	RTC, IOC and VOC waivers granted. The next set of samples are due during 2011-2013.
0403811OX02211218967	040381103108512008	SOX	State Compliance achieved	21-FEB-2012	State	RTC, IOC and VOC waivers granted. The next set of samples are due during 2011-2013.
0403811OX02211219006	040381103237812005	SOX	State Compliance achieved	21-FEB-2012	State	RTC, IOC and VOC waivers granted. The next set of samples are due during 2011-2013.
0403811OX02211219007	040381103237812008	SOX	State Compliance achieved	21-FEB-2012	State	RTC, IOC and VOC waivers granted. The next set of samples are due during 2011-2013.
0403811OX02211218984	040381103238012005	SOX	State Compliance achieved	21-FEB-2012	State	RTC, IOC and VOC waivers granted. The next set of samples are due during 2011-2013.
0403811OX02211218985	040381103238012008	SOX	State Compliance achieved	21-FEB-2012	State	RTC, IOC and VOC waivers granted. The next set of samples are due during 2011-2013.
0403811OX02211219002	040381103295512005	SOX	State Compliance achieved	21-FEB-2012	State	RTC, IOC and VOC waivers granted. The next set of samples are due during 2011-2013.
0403811OX02211219003	040381103295512008	SOX	State Compliance achieved	21-FEB-2012	State	RTC, IOC and VOC waivers granted. The next set of samples are due during 2011-2013.
0403811OX02211219004	040381103296412005	SOX	State Compliance achieved	21-FEB-2012	State	RTC, IOC and VOC waivers granted. The next set of samples are due during 2011-2013.
0403811OX02211219005	040381103296412008	SOX	State Compliance achieved	21-FEB-2012	State	RTC, IOC and VOC waivers granted. The next set of samples are due during 2011-2013.
0403811OX02211218992	040381103296812005	SOX	State Compliance achieved	21-FEB-2012	State	RTC, IOC and VOC waivers granted. The next set of samples are due during 2011-2013.
0403811OX02211218993	040381103296812008	SOX	State Compliance achieved	21-FEB-2012	State	RTC, IOC and VOC waivers granted. The next set of samples are due during 2011-2013.
0403811OX02211218976	040381103296912005	SOX	State Compliance achieved	21-FEB-2012	State	RTC, IOC and VOC waivers granted. The next set of samples are due during 2011-2013.
0403811OX02211218977	040381103296912008	SOX	State Compliance achieved	21-FEB-2012	State	RTC, IOC and VOC waivers granted. The next set of samples are due during 2011-2013.
0403811OX02211218982	040381103297612005	SOX	State Compliance achieved	21-FEB-2012	State	RTC, IOC and VOC waivers granted. The next set of samples are due during 2011-2013.
0403811OX02211218983	040381103297612008	SOX	State Compliance achieved	21-FEB-2012	State	RTC, IOC and VOC waivers granted. The next set of samples are due during 2011-2013.
0403811OX02211218978	040381103297712005	SOX	State Compliance achieved	21-FEB-2012	State	RTC, IOC and VOC waivers granted. The next set of samples are due during 2011-2013.
0403811OX02211218979	040381103297712008	SOX	State Compliance achieved	21-FEB-2012	State	RTC, IOC and VOC waivers granted. The next set of samples are due during 2011-2013.
0403811OX02211219001	040381103297912008	SOX	State Compliance achieved	21-FEB-2012	State	RTC, IOC and VOC waivers granted. The next set of samples are due during 2011-2013.
0403811OX02211218972	040381103298012005	SOX	State Compliance achieved	21-FEB-2012	State	RTC, IOC and VOC waivers granted. The next set of samples are due during 2011-2013.
0403811OX02211218973	040381103298012008	SOX	State Compliance achieved	21-FEB-2012	State	RTC, IOC and VOC waivers granted. The next set of samples are due during 2011-2013.
0403811OX02211218980	040381103298112005	SOX	State Compliance achieved	21-FEB-2012	State	RTC, IOC and VOC waivers granted. The next set of samples are due during 2011-2013.
0403811OX02211218981	040381103298112008	SOX	State Compliance achieved	21-FEB-2012	State	RTC, IOC and VOC waivers granted. The next set of samples are due during 2011-2013.
0403811OX02211218970	040381103298212005	SOX	State Compliance achieved	21-FEB-2012	State	RTC, IOC and VOC waivers granted. The next set of samples are due during 2011-2013.
0403811OX02211218971	040381103298212008	SOX	State Compliance achieved	21-FEB-2012	State	RTC, IOC and VOC waivers granted. The next set of samples are due during 2011-2013.
0403811OX02211218986	040381103298312005	SOX	State Compliance achieved	21-FEB-2012	State	RTC, IOC and VOC waivers granted. The next set of samples are due during 2011-2013.
0403811OX02211218987	040381103298312008	SOX	State Compliance achieved	21-FEB-2012	State	RTC, IOC and VOC waivers granted. The next set of samples are due during 2011-2013.
0403811OX02211218974	040381103298412005	SOX	State Compliance achieved	21-FEB-2012	State	RTC, IOC and VOC waivers granted. The next set of samples are due during 2011-2013.
0403811OX02211218975	040381103298412008	SOX	State Compliance achieved	21-FEB-2012	State	RTC, IOC and VOC waivers granted. The next set of samples are due during 2011-2013.
0403811OX02211219008	040381103298512005	SOX	State Compliance achieved	21-FEB-2012	State	RTC, IOC and VOC waivers granted. The next set of samples are due during 2011-2013.
0403811OX02211219009	040381103298512008	SOX	State Compliance achieved	21-FEB-2012	State	RTC, IOC and VOC waivers granted. The next set of samples are due during 2011-2013.
0403811OX02211218996	040381103298712005	SOX	State Compliance achieved	21-FEB-2012	State	RTC, IOC and VOC waivers granted. The next set of samples are due during 2011-2013.
0403811OX02211218997	040381103298712008	SOX	State Compliance achieved	21-FEB-2012	State	RTC, IOC and VOC waivers granted. The next set of samples are due during 2011-2013.
0403811OX02211218990	040381103298912005	SOX	State Compliance achieved	21-FEB-2012	State	RTC, IOC and VOC waivers granted. The next set of samples are due during 2011-2013.
0403811OX02211218991	040381103298912008	SOX	State Compliance achieved	21-FEB-2012	State	RTC, IOC and VOC waivers granted. The next set of samples are due during 2011-2013.
0403811OX02211218968	040381103299012005	SOX	State Compliance achieved	21-FEB-2012	State	RTC, IOC and VOC waivers granted. The next set of samples are due during 2011-2013.
0403811OX02211218969	040381103299012008	SOX	State Compliance achieved	21-FEB-2012	State	RTC, IOC and VOC waivers granted. The next set of samples are due during 2011-2013.
0403811OX02211218998	040381103299112005	SOX	State Compliance achieved	21-FEB-2012	State	RTC, IOC and VOC waivers granted. The next set of samples are due during 2011-2013.
0403811OX02211218999	040381103299112008	SOX	State Compliance achieved	21-FEB-2012	State	RTC, IOC and VOC waivers granted. The next set of samples are due during 2011-2013.
0403811OX02211218988	040381103299212005	SOX	State Compliance achieved	21-FEB-2012	State	RTC, IOC and VOC waivers granted. The next set of samples are due during 2011-2013.
0403811OX02211218989	040381103299212008	SOX	State Compliance achieved	21-FEB-2012	State	RTC, IOC and VOC waivers granted. The next set of samples are due during 2011-2013.

1 - 50 of 61

All Facilities

Facility Name	Facility ID	Is Source	Facility Type Description	Water Type Description	Availability Description	Facility Activity Status
NN0403004 NTUA Pinon CWS	0403811GW003	Yes	Well	Ground water	Emergency	Active
04-0580 (Hardrock 2)	0403811GW002	Yes	Well	Ground water	Permanent	Active
04T-551 (Hardrock 1)	0403811GW001	Yes	Well	Ground water	Permanent	Active
04T-551 Entry Point (Hardrock 1)	0403811EP001	No	Common Headers	-	-	Active
04-0580 Entry Point (Hardrock 2)	0403811EP002	No	Common Headers	-	-	Active
NN0403811 NTUA Hard Rock Distribution System	0403811DS001	No	Distribution System/Zone	-	-	Active
Many Bobcats Hill Storage Tank	0403811ST001	No	Storage	-	-	Active
Rocky Ridge/Dinnebito Storage Tank	0403811ST002	No	Storage	-	-	Active
Little Black Spot Storage Tank	0403811ST003	No	Storage	-	-	Active
04T-551 Treatment (Hardrock 1 ; GW001)	0403811TP001	No	Treatment Plant	-	-	Active
04-0580 Treatment (Hardrock 2 ; GW002)	0403811TP002	No	Treatment Plant	-	-	Active

1 - 11 of 11

Treatment Processes

Facility Name	Facility ID	Treatment Process	Treatment Objective
04T-551 Treatment (Hardrock 1 ; GW001)	0403811TP001	Gaseous Chlorination, Post	Disinfection
04-0580 Treatment (Hardrock 2 ; GW002)	0403811TP002	Gaseous Chlorination, Post	Disinfection

1 - 2 of 2

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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