Safe Drinking Water Information System (SDWIS) Federal Reporting Services

Your Drinking Water Query results from SDWIS Fed Reporting Services

PWS ID	NN0403047
PWS Name	Lukachukai NTUA
PWS Type	Community water system
Owner Type	Tribal Government
Primary Source	Ground water
Primacy Type	Tribal
Is Wholesaler?	No
Population Served	1659
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)	040304730245612020	Returned to Compliance	01-JAN-2020	31-DEC-2020	No
MR	Monitoring, Routine (IDSE)	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	040304730295012020	Returned to Compliance	01-JAN-2020	31-DEC-2020	No
Other	Sample Siting Plan Errors (RTCR)	Revised Total Coliform Rule	Revised Total Coliform Rule	04030475A800042016	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	0403047350600102013	Open	01-OCT-2013	-	No
MR	Monitoring, Routine Major (TCR)	Total Coliform Rule	Coliform (TCR)	0403047233100122012	Returned to Compliance	01-DEC-2012	31-DEC-2012	No
MR	Monitoring, Routine Major (TCR)	Total Coliform Rule	Coliform (TCR)	0403047233100112012	Returned to Compliance	01-NOV-2012	30-NOV-2012	No
MCL	Maximum Contaminant Level Violation, Average	Arsenic Rule	Arsenic	0403047021005102012	Returned to Compliance	01-OCT-2012	31-DEC-2012	Yes
MCL	Maximum Contaminant Level Violation, Average	Arsenic Rule	Arsenic	040304702100572012	Returned to Compliance	01-JUL-2012	30-SEP-2012	Yes
MR	Monitoring, Regular	Arsenic Rule	Arsenic	040304703100542012	Returned to Compliance	01-APR-2012	30-JUN-2012	No
MCL	Maximum Contaminant Level Violation, Average	Arsenic Rule	Arsenic	040304702100542012	Returned to Compliance	01-APR-2012	30-JUN-2012	Yes
MCL	Maximum Contaminant Level Violation, Average	Arsenic Rule	Arsenic	040304702100512012	Returned to Compliance	01-JAN-2012	31-MAR-2012	Yes
MR	Monitoring, Regular	Nitrate Rule	Nitrite	040304703104112010	Returned to Compliance	01-JAN-2010	31-DEC-2010	No
MR	Monitoring, Routine Minor (TCR)	Total Coliform Rule	Coliform (TCR)	040304724310012009	Returned to Compliance	01-JAN-2009	31-JAN-2009	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,1-Dichloroethylene	040304703297712005	Returned to Compliance	01-JAN-2005	31-DEC-2010	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Vinyl chloride	040304703297612005	Returned to Compliance	01-JAN-2005	31-DEC-2010	No
MR	Monitoring, Regular	Volatile Organic Chemicals	p-Dichlorobenzene	040304703296912005	Returned to Compliance	01-JAN-2005	31-DEC-2010	No
MR	Monitoring, Regular	Volatile Organic Chemicals	o-Dichlorobenzene	040304703296812005	Returned to Compliance	01-JAN-2005	31-DEC-2010	No
MR	Monitoring, Regular	Volatile Organic Chemicals	DICHLOROMETHANE	040304703296412005	Returned to Compliance	01-JAN-2005	31-DEC-2010	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Xylenes, Total	040304703295512005	Returned to Compliance	01-JAN-2005	31-DEC-2010	No
MR	Monitoring, Regular	Volatile Organic Chemicals	cis-1,2-Dichloroethylene	040304703238012005	Returned to Compliance	01-JAN-2005	31-DEC-2010	No
MR	Monitoring, Regular	Volatile Organic Chemicals	trans-1,2-Dichloroethylene	040304703297912005	Returned to Compliance	01-JAN-2005	31-DEC-2010	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,2-Dichloroethane	040304703298012005	Returned to Compliance	01-JAN-2005	31-DEC-2010	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,1,1-Trichloroethane	040304703298112005	Returned to Compliance	01-JAN-2005	31-DEC-2010	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Carbon tetrachloride	040304703298212005	Returned to Compliance	01-JAN-2005	31-DEC-2010	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,2-Dichloropropane	040304703298312005	Returned to Compliance	01-JAN-2005	31-DEC-2010	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Trichloroethylene	040304703298412005	Returned to Compliance	01-JAN-2005	31-DEC-2010	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,1,2-Trichloroethane	040304703298512005	Returned to Compliance	01-JAN-2005	31-DEC-2010	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Tetrachloroethylene	040304703298712005	Returned to Compliance	01-JAN-2005	31-DEC-2010	No
MR	Monitoring, Regular	Volatile Organic Chemicals	CHLOROBENZENE	040304703298912005	Returned to Compliance	01-JAN-2005	31-DEC-2010	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Toluene	040304703299112005	Returned to Compliance	01-JAN-2005	31-DEC-2010	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Ethylbenzene	040304703299212005	Returned to Compliance	01-JAN-2005	31-DEC-2010	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Styrene	040304703299612005	Returned to Compliance	01-JAN-2005	31-DEC-2010	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,2,4-Trichlorobenzene	040304703237812005	Returned to Compliance	01-JAN-2005	31-DEC-2010	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Benzene	040304703299012005	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
0403047OX02102541656	04030475A800042016	SOX	State Compliance achieved	10-FEB-2025	State	RTCR Site Sample Plan submitted and approved.
0403047OX07122138944	040304730295012020	SOX	State Compliance achieved	12-JUL-2021	State	2020 DBPs Stage 2 M/R. Return To Compliance. Full sample sets collected 07/12/2021.
0403047OX07122138945	040304730245612020	SOX	State Compliance achieved	12-JUL-2021	State	2020 DBPs Stage 2 M/R. Return To Compliance. Full sample sets collected 07/12/2021.
0403047FJ08251733385	0403047350600102013	SFJ	State Formal Notice of Violation issued	25-AUG-2017	State	NOV issued for failure to submit a DBP site sampling plan.
0403047IF02101426548	040304702100572012	SIF	State Public Notification received	10-FEB-2014	State	PN received for arsenic exceedance beginning February 2011 to October 2013.
0403047IF02101426558	0403047021005102012	SIF	State Public Notification received	10-FEB-2014	State	PN received for arsenic exceedances beginning February2011 to October2013.
0403047IF02101426549	040304702100512012	SIF	State Public Notification received	10-FEB-2014	State	PN received for arsenic exceedance beginning February 2011 to October 2013.
0403047IF02101426557	040304702100542012	SIF	State Public Notification received	10-FEB-2014	State	PN received for arsenic exceedances beginning February2011 to October2013.
0403047OX05161324150	040304703100542012	SOX	State Compliance achieved	16-MAY-2013	State	2012 Q2 Arsenic M/R. RTC, sampled 05-12-2012.
0403047OX01111323591	0403047233100122012	SOX	State Compliance achieved	11-JAN-2013	State	2012 Dec TCR M/R. RTC, received NTUA TCR results on 01-11-2013.
0403047OX12111223673	0403047233100112012	SOX	State Compliance achieved	11-DEC-2012	State	2012 Nov TCR M/R. RTC, received NTUA TCR results on 12-11-2012.
0403047OX02211218807	040304703298312005	SOX	State Compliance achieved	21-FEB-2012	State	RTC, VOC waiver granted. The next set of samples are due during 2011-2013.
0403047OX02211218801	040304703298412005	SOX	State Compliance achieved	21-FEB-2012	State	RTC, VOC waiver granted. The next set of samples are due during 2011-2013.
0403047OX02211218818	040304703298512005	SOX	State Compliance achieved	21-FEB-2012	State	RTC, VOC waiver granted. The next set of samples are due during 2011-2013.
0403047OX02211218812	040304703298712005	SOX	State Compliance achieved	21-FEB-2012	State	RTC, VOC waiver granted. The next set of samples are due during 2011-2013.
0403047OX02211218809	040304703298912005	SOX	State Compliance achieved	21-FEB-2012	State	RTC, VOC waiver granted. The next set of samples are due during 2011-2013.
0403047OX02211218819	040304703299012005	SOX	State Compliance achieved	21-FEB-2012	State	RTC, VOC waiver granted. The next set of samples are due during 2011-2013.
0403047OX02211218813	040304703299112005	SOX	State Compliance achieved	21-FEB-2012	State	RTC, VOC waiver granted. The next set of samples are due during 2011-2013.
0403047OX02211218808	040304703299212005	SOX	State Compliance achieved	21-FEB-2012	State	RTC, VOC waiver granted. The next set of samples are due during 2011-2013.
0403047OX02211218811	040304703299612005	SOX	State Compliance achieved	21-FEB-2012	State	RTC, VOC waiver granted. The next set of samples are due during 2011-2013.
0403047OX02211218799	040304703298212005	SOX	State Compliance achieved	21-FEB-2012	State	RTC, VOC waiver granted. The next set of samples are due during 2011-2013.
0403047OX02211218804	040304703298112005	SOX	State Compliance achieved	21-FEB-2012	State	RTC, VOC waiver granted. The next set of samples are due during 2011-2013.
0403047OX02211218814	040304703297912005	SOX	State Compliance achieved	21-FEB-2012	State	RTC, VOC waiver granted. The next set of samples are due during 2011-2013.
0403047OX02211218803	040304703297712005	SOX	State Compliance achieved	21-FEB-2012	State	RTC, VOC waiver granted. The next set of samples are due during 2011-2013.
0403047OX02211218805	040304703297612005	SOX	State Compliance achieved	21-FEB-2012	State	RTC, VOC waiver granted. The next set of samples are due during 2011-2013.
0403047OX02211218802	040304703296912005	SOX	State Compliance achieved	21-FEB-2012	State	RTC, VOC waiver granted. The next set of samples are due during 2011-2013.
0403047OX02211218810	040304703296812005	SOX	State Compliance achieved	21-FEB-2012	State	RTC, VOC waiver granted. The next set of samples are due during 2011-2013.
0403047OX02211218816	040304703296412005	SOX	State Compliance achieved	21-FEB-2012	State	RTC, VOC waiver granted. The next set of samples are due during 2011-2013.
0403047OX02211218815	040304703295512005	SOX	State Compliance achieved	21-FEB-2012	State	RTC, VOC waiver granted. The next set of samples are due during 2011-2013.
0403047OX02211218806	040304703238012005	SOX	State Compliance achieved	21-FEB-2012	State	RTC, VOC waiver granted. The next set of samples are due during 2011-2013.
0403047OX02211218817	040304703237812005	SOX	State Compliance achieved	21-FEB-2012	State	RTC, VOC waiver granted. The next set of samples are due during 2011-2013.
0403047OX02211218800	040304703298012005	SOX	State Compliance achieved	21-FEB-2012	State	RTC, VOC waiver granted. The next set of samples are due during 2011-2013.
0403047OX10211112819	040304703104112010	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.
0403047IE0604099053	040304724310012009	SIE	State Public Notification requested	04-JUN-2009	State	NOV, PN requested

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All Facilities

Facility Name	Facility ID	Is Source	Facility Type Description	Water Type Description	Availability Description	Facility Activity Status
11T-502 (Lukachukai 1)	0403047GW001	Yes	Well	Ground water	Other	Inactive
NN0403005 NTUA Tsaile CWS	0403047GW004	Yes	Well	Ground water	Permanent	Active
11-0600 (Lukachukai 2, Infiltration Gallery)	0403047GW003	Yes	Well	Ground water	Other	Inactive
11-0601 (Lukachukai 3)	0403047GW002	Yes	Well	Ground water	Other	Inactive
NN0403047 Entry Point from NTUA Tsaile Intertie	0403047EP004	No	Common Headers	-	-	Active
11T-502 Entry Point (Lukachukai 1)	0403047EP001	No	Common Headers	-	-	Inactive
11-0601 Entry Point (Lukachukai 3)	0403047EP002	No	Common Headers	-	-	Inactive
NN0403047 Lukachukai distribution system	0403047DS001	No	Distribution System/Zone	-	-	Active
Lukachukai #1	0403047ST001	No	Storage	-	-	Active
Lukachukai #2	0403047ST002	No	Storage	-	-	Active
11T-502 Treatment (Lukachukai 1)	0403047TP001	No	Treatment Plant	-	-	Inactive
11-0601 Treatment (Lukachukai 3)	0403047TP002	No	Treatment Plant	-	-	Inactive

1 - 12 of 12

Treatment Processes

Facility Name	Facility ID	Treatment Process	Treatment Objective
11T-502 Treatment (Lukachukai 1)	0403047TP001	Hypochlorination, Post	Disinfection
11T-502 Treatment (Lukachukai 1)	0403047TP001	Fluoridation	Other
11-0601 Treatment (Lukachukai 3)	0403047TP002	Gaseous Chlorination, Post	Disinfection
11-0601 Treatment (Lukachukai 3)	0403047TP002	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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