Safe Drinking Water Information System (SDWIS) Federal Reporting Services

Your Drinking Water Query results from SDWIS Fed Reporting Services

PWS ID	NN0400296
PWS Name	Dennehotso NTUA
PWS Type	Community water system
Owner Type	Tribal Government
Primary Source	Ground water
Primacy Type	Tribal
Is Wholesaler?	No
Population Served	1040
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
MON	Monitoring, Routine (RTCR)	Revised Total Coliform Rule	Revised Total Coliform Rule	04002963A800042017	Returned to Compliance	01-APR-2017	30-APR-2017	No
MON	Monitoring, Routine (RTCR)	Revised Total Coliform Rule	Revised Total Coliform Rule	04002963A800032017	Returned to Compliance	01-MAR-2017	31-MAR-2017	No
MON	Monitoring, Routine (RTCR)	Revised Total Coliform Rule	Revised Total Coliform Rule	04002963A800022017	Returned to Compliance	01-FEB-2017	28-FEB-2017	No
MR	Monitoring, Routine (IDSE)	Stage 2 Disinfectants and Disinfection Byproducts Rule	Total Haloacetic Acids (HAA5)	040029630245612017	Returned to Compliance	01-JAN-2017	31-DEC-2017	No
MR	Monitoring, Routine (IDSE)	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	040029630295012017	Returned to Compliance	01-JAN-2017	31-DEC-2017	No
MON	Monitoring, Routine (RTCR)	Revised Total Coliform Rule	Revised Total Coliform Rule	04002963A800012017	Returned to Compliance	01-JAN-2017	31-JAN-2017	No
MON	Monitoring, Routine (RTCR)	Revised Total Coliform Rule	Revised Total Coliform Rule	04002963A800062016	Returned to Compliance	01-JUN-2016	30-JUN-2016	No
MR	Failure Submit IDSE/Subpart V Plan Rpt	Stage 2 Disinfectants and Disinfection Byproducts Rule	Stage 2 Disinfectants and Disinfection Byproducts Rule	0400296350600102013	Returned to Compliance	01-OCT-2013	-	No
MR	Monitoring, Routine Major (TCR)	Total Coliform Rule	Coliform (TCR)	0400296233100122012	Returned to Compliance	01-DEC-2012	31-DEC-2012	No
MR	Monitoring, Routine Major (TCR)	Total Coliform Rule	Coliform (TCR)	0400296233100112012	Returned to Compliance	01-NOV-2012	30-NOV-2012	No
MR	Monitoring, Regular	Nitrate Rule	Nitrite	040029603104112010	Returned to Compliance	01-JAN-2010	31-DEC-2010	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,1,1-Trichloroethane	040029603298112005	Returned to Compliance	01-JAN-2005	31-DEC-2010	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Carbon tetrachloride	040029603298212005	Returned to Compliance	01-JAN-2005	31-DEC-2010	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,2-Dichloropropane	040029603298312005	Returned to Compliance	01-JAN-2005	31-DEC-2010	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Trichloroethylene	040029603298412005	Returned to Compliance	01-JAN-2005	31-DEC-2010	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,1,2-Trichloroethane	040029603298512005	Returned to Compliance	01-JAN-2005	31-DEC-2010	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Tetrachloroethylene	040029603298712005	Returned to Compliance	01-JAN-2005	31-DEC-2010	No
MR	Monitoring, Regular	Volatile Organic Chemicals	CHLOROBENZENE	040029603298912005	Returned to Compliance	01-JAN-2005	31-DEC-2010	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Benzene	040029603299012005	Returned to Compliance	01-JAN-2005	31-DEC-2010	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Toluene	040029603299112005	Returned to Compliance	01-JAN-2005	31-DEC-2010	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Ethylbenzene	040029603299212005	Returned to Compliance	01-JAN-2005	31-DEC-2010	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,2-Dichloroethane	040029603298012005	Returned to Compliance	01-JAN-2005	31-DEC-2010	No
MR	Monitoring, Regular	Volatile Organic Chemicals	trans-1,2-Dichloroethylene	040029603297912005	Returned to Compliance	01-JAN-2005	31-DEC-2010	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,1-Dichloroethylene	040029603297712005	Returned to Compliance	01-JAN-2005	31-DEC-2010	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Vinyl chloride	040029603297612005	Returned to Compliance	01-JAN-2005	31-DEC-2010	No
MR	Monitoring, Regular	Volatile Organic Chemicals	p-Dichlorobenzene	040029603296912005	Returned to Compliance	01-JAN-2005	31-DEC-2010	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Styrene	040029603299612005	Returned to Compliance	01-JAN-2005	31-DEC-2010	No
MR	Monitoring, Regular	Volatile Organic Chemicals	DICHLOROMETHANE	040029603296412005	Returned to Compliance	01-JAN-2005	31-DEC-2010	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Xylenes, Total	040029603295512005	Returned to Compliance	01-JAN-2005	31-DEC-2010	No
MR	Monitoring, Regular	Volatile Organic Chemicals	cis-1,2-Dichloroethylene	040029603238012005	Returned to Compliance	01-JAN-2005	31-DEC-2010	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,2,4-Trichlorobenzene	040029603237812005	Returned to Compliance	01-JAN-2005	31-DEC-2010	No
MR	Monitoring, Regular	Nitrate Rule	Nitrate	040029603104012005	Returned to Compliance	01-JAN-2005	31-DEC-2005	No
MR	Monitoring, Regular	Volatile Organic Chemicals	o-Dichlorobenzene	040029603296812005	Returned to Compliance	01-JAN-2005	31-DEC-2010	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
0400296OX11281839908	0400296350600102013	SOX	State Compliance achieved	28-NOV-2018	State	RTC, DBP site sampling plan received.
0400296OX08271836477	040029630245612017	SOX	State Compliance achieved	27-AUG-2018	State	RTC, sample results received for samples collected on 08/27/2018.
0400296OX08271836476	040029630295012017	SOX	State Compliance achieved	27-AUG-2018	State	RTC, sample results received for samples collected on 08/27/2018.
0400296OX11131733841	04002963A800042017	SOX	State Compliance achieved	13-NOV-2017	State	RTC. PN posted 11/13/2017. Full rTCR collected 05/30/2017. Failure to collect appropriate numbers of monthly bactees during January, February, March, and April 2017.
0400296OX11131733838	04002963A800032017	SOX	State Compliance achieved	13-NOV-2017	State	RTC. PN posted 11/13/2017. Full rTCR collected 05/30/2017. Failure to collect appropriate numbers of monthly bactees during January, February, March, and April 2017.
0400296OX11131733840	04002963A800022017	SOX	State Compliance achieved	13-NOV-2017	State	RTC. PN posted 11/13/2017. Full rTCR collected 05/30/2017. Failure to collect appropriate numbers of monthly bactees during January, February, March, and April 2017.
0400296OX11131733839	04002963A800012017	SOX	State Compliance achieved	13-NOV-2017	State	RTC. PN posted 11/13/2017. Full rTCR collected 05/30/2017. Failure to collect appropriate numbers of monthly bactees during January, February, March, and April 2017.
0400296FJ08311632593	04002963A800062016	SFJ	State Formal Notice of Violation issued	31-AUG-2016	State	NOV issued for failure to collect samples at the appropriate site.
0400296OX01111323567	0400296233100122012	SOX	State Compliance achieved	11-JAN-2013	State	2012 Dec TCR M/R. RTC, received NTUA TCR results on 01-11-2013.
0400296OX12111223649	0400296233100112012	SOX	State Compliance achieved	11-DEC-2012	State	2012 Nov TCR M/R. RTC, received NTUA TCR results on 12-11-2012.
0400296OX10211112798	040029603104112010	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.
0400296OX10171112633	040029603298212005	SOX	State Compliance achieved	17-OCT-2011	State	RTC, chemical monitoring waiver allowed, last sample 05-17-04. The next sample is due prior to 12-31-11.
0400296OX10171112641	040029603298312005	SOX	State Compliance achieved	17-OCT-2011	State	RTC, chemical monitoring waiver allowed, last sample 05-17-04. The next sample is due prior to 12-31-11.
0400296OX10171112635	040029603298412005	SOX	State Compliance achieved	17-OCT-2011	State	RTC, chemical monitoring waiver allowed, last sample 05-17-04. The next sample is due prior to 12-31-11.
0400296OX10171112646	040029603298712005	SOX	State Compliance achieved	17-OCT-2011	State	RTC, chemical monitoring waiver allowed, last sample 05-17-04. The next sample is due prior to 12-31-11.
0400296OX10171112643	040029603298912005	SOX	State Compliance achieved	17-OCT-2011	State	RTC, chemical monitoring waiver allowed, last sample 05-17-04. The next sample is due prior to 12-31-11.
0400296OX10171112632	040029603299012005	SOX	State Compliance achieved	17-OCT-2011	State	RTC, chemical monitoring waiver allowed, last sample 05-17-04. The next sample is due prior to 12-31-11.
0400296OX10171112647	040029603299112005	SOX	State Compliance achieved	17-OCT-2011	State	RTC, chemical monitoring waiver allowed, last sample 05-17-04. The next sample is due prior to 12-31-11.
0400296OX10171112642	040029603299212005	SOX	State Compliance achieved	17-OCT-2011	State	RTC, chemical monitoring waiver allowed, last sample 05-17-04. The next sample is due prior to 12-31-11.
0400296OX10171112645	040029603299612005	SOX	State Compliance achieved	17-OCT-2011	State	RTC, chemical monitoring waiver allowed, last sample 05-17-04. The next sample is due prior to 12-31-11.
0400296OX10171112638	040029603298112005	SOX	State Compliance achieved	17-OCT-2011	State	RTC, chemical monitoring waiver allowed, last sample 05-17-04. The next sample is due prior to 12-31-11.
0400296OX10171112634	040029603298012005	SOX	State Compliance achieved	17-OCT-2011	State	RTC, chemical monitoring waiver allowed, last sample 05-17-04. The next sample is due prior to 12-31-11.
0400296OX10171112648	040029603297912005	SOX	State Compliance achieved	17-OCT-2011	State	RTC, chemical monitoring waiver allowed, last sample 05-17-04. The next sample is due prior to 12-31-11.
0400296OX10171112637	040029603297712005	SOX	State Compliance achieved	17-OCT-2011	State	RTC, chemical monitoring waiver allowed, last sample 05-17-04. The next sample is due prior to 12-31-11.
0400296OX10171112639	040029603297612005	SOX	State Compliance achieved	17-OCT-2011	State	RTC, chemical monitoring waiver allowed, last sample 05-17-04. The next sample is due prior to 12-31-11.
0400296OX10171112636	040029603296912005	SOX	State Compliance achieved	17-OCT-2011	State	RTC, chemical monitoring waiver allowed, last sample 05-17-04. The next sample is due prior to 12-31-11.
0400296OX10171112644	040029603296812005	SOX	State Compliance achieved	17-OCT-2011	State	RTC, chemical monitoring waiver allowed, last sample 05-17-04. The next sample is due prior to 12-31-11.
0400296OX10171112650	040029603296412005	SOX	State Compliance achieved	17-OCT-2011	State	RTC, chemical monitoring waiver allowed, last sample 05-17-04. The next sample is due prior to 12-31-11.
0400296OX10171112649	040029603295512005	SOX	State Compliance achieved	17-OCT-2011	State	RTC, chemical monitoring waiver allowed, last sample 05-17-04. The next sample is due prior to 12-31-11.
0400296OX10171112640	040029603238012005	SOX	State Compliance achieved	17-OCT-2011	State	RTC, chemical monitoring waiver allowed, last sample 05-17-04. The next sample is due prior to 12-31-11.
0400296OX10171112651	040029603237812005	SOX	State Compliance achieved	17-OCT-2011	State	RTC, chemical monitoring waiver allowed, last sample 05-17-04. The next sample is due prior to 12-31-11.
0400296OX10171112652	040029603298512005	SOX	State Compliance achieved	17-OCT-2011	State	RTC, chemical monitoring waiver allowed, last sample 05-17-04. The next sample is due prior to 12-31-11.
0400296OX03/06/2006	040029603104012005	SOX	State Compliance achieved	06-MAR-2006	State	NTUA submitted nitrate/nitrite results on 3/3/2006 (Lab#05-N62 and N63) and results were below the MCL.

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All Facilities

Facility Name	Facility ID	Is Source	Facility Type Description	Water Type Description	Availability Description	Facility Activity Status
08T-505 (Dennehotso 1)	0400296GW001	Yes	Well	Ground water	Permanent	Active
08-0607 (Dennehotso 2)	0400296GW002	Yes	Well	Ground water	Permanent	Active
08T-505 Entry Point (Dennehotso 1)	0400296EP001	No	Common Headers	-	-	Active
08-0607 Entry Point (Dennehotso 2)	0400296EP002	No	Common Headers	-	-	Active
NN0400296 NTUA Dennehotso Distribution System	0400296DS001	No	Distribution System/Zone	-	-	Active
Dennehotso Storage Tank	0400296ST001	No	Storage	-	-	Active
08T-505 Treatment Plant (Dennehotso 1 ; GW001)	0400296TP001	No	Treatment Plant	-	-	Active
08-0607 Treatment Plant (Dennehotso 2 ; GW002)	0400296TP002	No	Treatment Plant	-	-	Active

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Treatment Processes

Facility Name	Facility ID	Treatment Process	Treatment Objective
08T-505 Treatment Plant (Dennehotso 1 ; GW001)	0400296TP001	Gaseous Chlorination, Post	Disinfection
08T-505 Treatment Plant (Dennehotso 1 ; GW001)	0400296TP001	Fluoridation	Other
08-0607 Treatment Plant (Dennehotso 2 ; GW002)	0400296TP002	Gaseous Chlorination, Post	Disinfection
08-0607 Treatment Plant (Dennehotso 2 ; GW002)	0400296TP002	Fluoridation	Other

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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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