Safe Drinking Water Information System (SDWIS) Federal Reporting Services

Your Drinking Water Query results from SDWIS Fed Reporting Services

PWS ID	NN3500335
PWS Name	Red Rock NTUA
PWS Type	Community water system
Owner Type	Tribal Government
Primary Source	Ground water
Primacy Type	Tribal
Is Wholesaler?	No
Population Served	1652
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	350033530295012020	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)	350033530245612020	Returned to Compliance	01-JAN-2020	31-DEC-2020	No
Other	Sample Siting Plan Errors (RTCR)	Revised Total Coliform Rule	Revised Total Coliform Rule	35003355A800042016	Open	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	3500335350600102013	Open	01-OCT-2013	-	No
MR	Monitoring, Routine Major (TCR)	Total Coliform Rule	Coliform (TCR)	3500335233100122012	Returned to Compliance	01-DEC-2012	31-DEC-2012	No
MR	Monitoring, Routine Major (TCR)	Total Coliform Rule	Coliform (TCR)	3500335233100112012	Returned to Compliance	01-NOV-2012	30-NOV-2012	No
MCL	Maximum Contaminant Level Violation, Average	Inorganic Chemicals	Antimony, Total	3500335021074102010	Returned to Compliance	01-OCT-2010	31-DEC-2010	Yes
MCL	Maximum Contaminant Level Violation, Average	Inorganic Chemicals	Thallium, Total	3500335021085102010	Returned to Compliance	01-OCT-2010	31-DEC-2010	Yes
MCL	Maximum Contaminant Level Violation, Monthly (TCR)	Total Coliform Rule	Coliform (TCR)	350033522310072010	Returned to Compliance	01-JUL-2010	31-JUL-2010	Yes
MR	Monitoring, Regular	Nitrate Rule	Nitrite	350033503104112010	Returned to Compliance	01-JAN-2010	31-DEC-2010	No
MCL	Maximum Contaminant Level Violation, Monthly (TCR)	Total Coliform Rule	Coliform (TCR)	350033522310092008	Returned to Compliance	01-SEP-2008	30-SEP-2008	Yes
MR	Monitoring, Regular	Inorganic Chemicals	Mercury	350033503103512008	Returned to Compliance	01-JAN-2008	31-DEC-2010	No
MR	Monitoring, Regular	Volatile Organic Chemicals	trans-1,2-Dichloroethylene	350033503297912005	Returned to Compliance	01-JAN-2005	31-DEC-2010	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,1-Dichloroethylene	350033503297712005	Returned to Compliance	01-JAN-2005	31-DEC-2010	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Vinyl chloride	350033503297612005	Returned to Compliance	01-JAN-2005	31-DEC-2010	No
MR	Monitoring, Regular	Volatile Organic Chemicals	p-Dichlorobenzene	350033503296912005	Returned to Compliance	01-JAN-2005	31-DEC-2010	No
MR	Monitoring, Regular	Volatile Organic Chemicals	o-Dichlorobenzene	350033503296812005	Returned to Compliance	01-JAN-2005	31-DEC-2010	No
MR	Monitoring, Regular	Volatile Organic Chemicals	DICHLOROMETHANE	350033503296412005	Returned to Compliance	01-JAN-2005	31-DEC-2010	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Xylenes, Total	350033503295512005	Returned to Compliance	01-JAN-2005	31-DEC-2010	No
MR	Monitoring, Regular	Volatile Organic Chemicals	cis-1,2-Dichloroethylene	350033503238012005	Returned to Compliance	01-JAN-2005	31-DEC-2010	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,2,4-Trichlorobenzene	350033503237812005	Returned to Compliance	01-JAN-2005	31-DEC-2010	No
MR	Monitoring, Regular	Radionuclides and Revised Rad Rule	Combined Radium (-226 and -228)	350033503401012005	Returned to Compliance	01-JAN-2005	31-DEC-2010	No
MR	Monitoring, Regular	Radionuclides and Revised Rad Rule	Combined Uranium	350033503400612005	Returned to Compliance	01-JAN-2005	31-DEC-2010	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,2-Dichloroethane	350033503298012005	Returned to Compliance	01-JAN-2005	31-DEC-2010	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,1,1-Trichloroethane	350033503298112005	Returned to Compliance	01-JAN-2005	31-DEC-2010	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Carbon tetrachloride	350033503298212005	Returned to Compliance	01-JAN-2005	31-DEC-2010	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,2-Dichloropropane	350033503298312005	Returned to Compliance	01-JAN-2005	31-DEC-2010	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Trichloroethylene	350033503298412005	Returned to Compliance	01-JAN-2005	31-DEC-2010	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Tetrachloroethylene	350033503298712005	Returned to Compliance	01-JAN-2005	31-DEC-2010	No
MR	Monitoring, Regular	Volatile Organic Chemicals	CHLOROBENZENE	350033503298912005	Returned to Compliance	01-JAN-2005	31-DEC-2010	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Benzene	350033503299012005	Returned to Compliance	01-JAN-2005	31-DEC-2010	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Toluene	350033503299112005	Returned to Compliance	01-JAN-2005	31-DEC-2010	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Ethylbenzene	350033503299212005	Returned to Compliance	01-JAN-2005	31-DEC-2010	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Styrene	350033503299612005	Returned to Compliance	01-JAN-2005	31-DEC-2010	No
MR	Monitoring, Regular	Radionuclides and Revised Rad Rule	Gross Alpha, Excl. Radon and U	350033503400012005	Returned to Compliance	01-JAN-2005	31-DEC-2010	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,1,2-Trichloroethane	350033503298512005	Returned to Compliance	01-JAN-2005	31-DEC-2010	No
MR	Monitoring, Regular	Radionuclides and Revised Rad Rule	Gross Alpha, Excl. Radon and U	350033503400012004	Returned to Compliance	01-JAN-2004	31-DEC-2004	No

1 - 37 of 37

Enforcement Actions

Latest Enforcement ID	Associated To Violation ID	Enforcement Action Type Code	Enforcement Action Description	Enforcement Date	Originator Description	Enforcement Comment
3500335FJ08282441511	35003355A800042016	SFJ	State Formal Notice of Violation issued	28-AUG-2024	State	NOV issued for failure to prepare a site sampling plan for total coliform.
3500335OX07202138857	350033530245612020	SOX	State Compliance achieved	20-JUL-2021	State	2020 DBPs Stage 2 M/R. Return To Compliance. Full sample sets collected 07/20/2021.
3500335OX07202138856	350033530295012020	SOX	State Compliance achieved	20-JUL-2021	State	2020 DBPs Stage 2 M/R. Return To Compliance. Full sample sets collected 07/20/2021.
3500335FJ08281733439	3500335350600102013	SFJ	State Formal Notice of Violation issued	28-AUG-2017	State	NOV issued for failure to submit a DBP site sampling plan.
3500335OX01111323616	3500335233100122012	SOX	State Compliance achieved	11-JAN-2013	State	2012 Dec TCR M/R. RTC, received NTUA TCR results on 01-11-2013.
3500335OX12111223698	3500335233100112012	SOX	State Compliance achieved	11-DEC-2012	State	2012 Nov TCR M/R. RTC, received NTUA TCR results on 12-11-2012.
3500335OX02211219362	350033503299112005	SOX	State Compliance achieved	21-FEB-2012	State	RTC, VOC waiver granted. The next set of samples are due during 2011-2013.
3500335OX02211219347	350033503299012005	SOX	State Compliance achieved	21-FEB-2012	State	RTC, VOC waiver granted. The next set of samples are due during 2011-2013.
3500335OX02211221607	3500335021074102010	SOX	State Compliance achieved	21-FEB-2012	State	Sample Invalided by Lab.
3500335OX02211221608	3500335021085102010	SOX	State Compliance achieved	21-FEB-2012	State	Sample Invalided by Lab.
3500335OX02211219366	350033503237812005	SOX	State Compliance achieved	21-FEB-2012	State	RTC, VOC waiver granted. The next set of samples are due during 2011-2013.
3500335OX02211219355	350033503238012005	SOX	State Compliance achieved	21-FEB-2012	State	RTC, VOC waiver granted. The next set of samples are due during 2011-2013.
3500335OX02211219364	350033503295512005	SOX	State Compliance achieved	21-FEB-2012	State	RTC, VOC waiver granted. The next set of samples are due during 2011-2013.
3500335OX02211219365	350033503296412005	SOX	State Compliance achieved	21-FEB-2012	State	RTC, VOC waiver granted. The next set of samples are due during 2011-2013.
3500335OX02211219358	350033503298912005	SOX	State Compliance achieved	21-FEB-2012	State	RTC, VOC waiver granted. The next set of samples are due during 2011-2013.
3500335OX02211219351	350033503296912005	SOX	State Compliance achieved	21-FEB-2012	State	RTC, VOC waiver granted. The next set of samples are due during 2011-2013.
3500335OX02211219354	350033503297612005	SOX	State Compliance achieved	21-FEB-2012	State	RTC, VOC waiver granted. The next set of samples are due during 2011-2013.
3500335OX02211219352	350033503297712005	SOX	State Compliance achieved	21-FEB-2012	State	RTC, VOC waiver granted. The next set of samples are due during 2011-2013.
3500335OX02211219363	350033503297912005	SOX	State Compliance achieved	21-FEB-2012	State	RTC, VOC waiver granted. The next set of samples are due during 2011-2013.
3500335OX02211219349	350033503298012005	SOX	State Compliance achieved	21-FEB-2012	State	RTC, VOC waiver granted. The next set of samples are due during 2011-2013.
3500335OX02211219353	350033503298112005	SOX	State Compliance achieved	21-FEB-2012	State	RTC, VOC waiver granted. The next set of samples are due during 2011-2013.
3500335OX02211219348	350033503298212005	SOX	State Compliance achieved	21-FEB-2012	State	RTC, VOC waiver granted. The next set of samples are due during 2011-2013.
3500335OX02211219356	350033503298312005	SOX	State Compliance achieved	21-FEB-2012	State	RTC, VOC waiver granted. The next set of samples are due during 2011-2013.
3500335OX02211219350	350033503298412005	SOX	State Compliance achieved	21-FEB-2012	State	RTC, VOC waiver granted. The next set of samples are due during 2011-2013.
3500335OX02211219367	350033503298512005	SOX	State Compliance achieved	21-FEB-2012	State	RTC, VOC waiver granted. The next set of samples are due during 2011-2013.
3500335OX02211219361	350033503298712005	SOX	State Compliance achieved	21-FEB-2012	State	RTC, VOC waiver granted. The next set of samples are due during 2011-2013.
3500335OX02211219357	350033503299212005	SOX	State Compliance achieved	21-FEB-2012	State	RTC, VOC waiver granted. The next set of samples are due during 2011-2013.
3500335OX02211219360	350033503299612005	SOX	State Compliance achieved	21-FEB-2012	State	RTC, VOC waiver granted. The next set of samples are due during 2011-2013.
3500335OX02211219359	350033503296812005	SOX	State Compliance achieved	21-FEB-2012	State	RTC, VOC waiver granted. The next set of samples are due during 2011-2013.
3500335FJ11181116792	350033503103512008	SFJ	State Formal Notice of Violation issued	18-NOV-2011	State	NOV issued for failure to collect a sample for mercury.
3500335OX10281114710	350033503400612005	SOX	State Compliance achieved	28-OCT-2011	State	RTC, six-year waiver was granted. Next sample is due prior to 12/31/12.
3500335OX10281114711	350033503400012005	SOX	State Compliance achieved	28-OCT-2011	State	RTC, six-year waiver was granted. Next sample is due prior to 12/31/12.
3500335OX10281114709	350033503401012005	SOX	State Compliance achieved	28-OCT-2011	State	RTC, six-year waiver was granted. Next sample is due prior to 12/31/12.
3500335OX10211112841	350033503104112010	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.
3500335OX01201111412	350033522310072010	SOX	State Compliance achieved	20-JAN-2011	State	RTC, repeat samples were received, sampled appropriately the following month.
3500335OX0915108924	350033522310092008	SOX	State Compliance achieved	15-SEP-2010	State	RTC, PN received 10/14/2008
3500335OX03/22/2007	350033503400012004	SOX	State Compliance achieved	22-MAR-2007	State	Quarterly sampling during 2006.

1 - 37 of 37

All Facilities

Facility Name	Facility ID	Is Source	Facility Type Description	Water Type Description	Availability Description	Facility Activity Status
16T-609 (RED ROCK 1)	3500335GW001	Yes	Well	Ground water	Permanent	Active
16T-609 Entry Point (Red Rock 1)	3500335EP001	No	Common Headers	-	-	Active
NN3500335 NTUA Red Rock Distribution System	3500335DS001	No	Distribution System/Zone	-	-	Active
Red Rock Booster Station	3500335PF001	No	Pump Facility	-	-	Active
Red Rock Tank	3500335ST001	No	Storage	-	-	Active
Twin Buttes Tank	3500335ST002	No	Storage	-	-	Active
16T-609 Treatment (RED ROCK 1)	3500335TP001	No	Treatment Plant	-	-	Active

1 - 7 of 7

Treatment Processes

Facility Name	Facility ID	Treatment Process	Treatment Objective
16T-609 Treatment (RED ROCK 1)	3500335TP001	Gaseous Chlorination, 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.

Safe Drinking Water Information System (SDWIS) Federal Reporting Services

Nav Menu

Your Drinking Water Query results from SDWIS Fed Reporting Services

Note

PWS Violation

Violations

Column Actions

Enforcement Actions

Enforcement Actions

Column Actions

PWS Facilities

All Facilities

Column Actions

PWS Treatment Processes

Treatment Processes

Column Actions