Safe Drinking Water Information System (SDWIS) Federal Reporting Services

Your Drinking Water Query results from SDWIS Fed Reporting Services

PWS ID	090400104
PWS Name	Upper Moenkopi
PWS Type	Community water system
Owner Type	Tribal Government
Primary Source	Ground water
Primacy Type	Tribal
Is Wholesaler?	Yes
Population Served	1740
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 and Reporting (DBP)	Stage 1 Disinfectants and Disinfection Byproducts Rule	Chlorine	0400104270999102024	Known	01-OCT-2024	31-DEC-2024	No
MR	Monitoring and Reporting (DBP)	Stage 2 Disinfectants and Disinfection Byproducts Rule	Total Haloacetic Acids (HAA5)	040010427245612023	Known	01-JAN-2023	31-DEC-2023	No
MR	Monitoring and Reporting (DBP)	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	040010427295012023	Known	01-JAN-2023	31-DEC-2023	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Toluene	040010403299112016	Returned to Compliance	01-JAN-2016	31-MAR-2016	No
MR	Monitoring, Routine Minor (TCR)	Total Coliform Rule	Coliform (TCR)	040010424310082015	Returned to Compliance	01-AUG-2015	31-AUG-2015	No
MR	Monitoring, Regular	Radionuclides and Revised Rad Rule	Gross Beta Particle Activity	040010403410072015	Returned to Compliance	01-JUL-2015	30-SEP-2015	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Toluene	040010403299172015	Returned to Compliance	01-JUL-2015	30-SEP-2015	No
MR	Monitoring, Routine Major (TCR)	Total Coliform Rule	Coliform (TCR)	040010423310062015	Returned to Compliance	01-JUN-2015	30-JUN-2015	No
MR	Monitoring, Routine Major (TCR)	Total Coliform Rule	Coliform (TCR)	040010423310042015	Returned to Compliance	01-APR-2015	30-APR-2015	No
MR	Monitoring, Routine Major (TCR)	Total Coliform Rule	Coliform (TCR)	040010423310032015	Returned to Compliance	01-MAR-2015	31-MAR-2015	No
MR	Monitoring, Routine Major (TCR)	Total Coliform Rule	Coliform (TCR)	040010423310012015	Returned to Compliance	01-JAN-2015	31-JAN-2015	No
MR	Monitoring, Routine (IDSE)	Stage 2 Disinfectants and Disinfection Byproducts Rule	Total Haloacetic Acids (HAA5)	040010430245612015	Returned to Compliance	01-JAN-2015	31-DEC-2015	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Toluene	040010403299112015	Returned to Compliance	01-JAN-2015	31-MAR-2015	No
MR	Monitoring, Routine (IDSE)	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	040010430295012015	Returned to Compliance	01-JAN-2015	31-DEC-2015	No
MR	Monitoring, Regular	Radionuclides and Revised Rad Rule	Gross Beta Particle Activity	040010403410012015	Returned to Compliance	01-JAN-2015	31-MAR-2015	No
MR	Monitoring, Routine Major (TCR)	Total Coliform Rule	Coliform (TCR)	040010423310082014	Returned to Compliance	01-AUG-2014	31-AUG-2014	No
Other	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	Consumer Confidence Rule	040010471700072014	Returned to Compliance	01-JUL-2014	-	No
MR	Monitoring, Regular	Radionuclides and Revised Rad Rule	Gross Beta Particle Activity	040010403410072014	Returned to Compliance	01-JUL-2014	30-SEP-2014	No
MR	Monitoring, Regular	Radionuclides and Revised Rad Rule	Gross Beta Particle Activity	040010403410042014	Returned to Compliance	01-APR-2014	30-JUN-2014	No
MR	Monitoring, Routine Major (TCR)	Total Coliform Rule	Coliform (TCR)	040010423310032014	Returned to Compliance	01-MAR-2014	31-MAR-2014	No
MR	Monitoring, Regular	Volatile Organic Chemicals	CHLOROBENZENE	040010403298912014	Returned to Compliance	01-JAN-2014	31-DEC-2014	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Tetrachloroethylene	040010403298712014	Returned to Compliance	01-JAN-2014	31-DEC-2014	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,1,2-Trichloroethane	040010403298512014	Returned to Compliance	01-JAN-2014	31-DEC-2014	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Trichloroethylene	040010403298412014	Returned to Compliance	01-JAN-2014	31-DEC-2014	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,2-Dichloropropane	040010403298312014	Returned to Compliance	01-JAN-2014	31-DEC-2014	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,1,1-Trichloroethane	040010403298112014	Returned to Compliance	01-JAN-2014	31-DEC-2014	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,2-Dichloroethane	040010403298012014	Returned to Compliance	01-JAN-2014	31-DEC-2014	No
MR	Monitoring, Regular	Volatile Organic Chemicals	trans-1,2-Dichloroethylene	040010403297912014	Returned to Compliance	01-JAN-2014	31-DEC-2014	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,1-Dichloroethylene	040010403297712014	Returned to Compliance	01-JAN-2014	31-DEC-2014	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Vinyl chloride	040010403297612014	Returned to Compliance	01-JAN-2014	31-DEC-2014	No
MR	Monitoring, Regular	Volatile Organic Chemicals	p-Dichlorobenzene	040010403296912014	Returned to Compliance	01-JAN-2014	31-DEC-2014	No
MR	Monitoring, Regular	Volatile Organic Chemicals	o-Dichlorobenzene	040010403296812014	Returned to Compliance	01-JAN-2014	31-DEC-2014	No
MR	Monitoring, Regular	Volatile Organic Chemicals	DICHLOROMETHANE	040010403296412014	Returned to Compliance	01-JAN-2014	31-DEC-2014	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Xylenes, Total	040010403295512014	Returned to Compliance	01-JAN-2014	31-DEC-2014	No
MR	Monitoring, Regular	Volatile Organic Chemicals	cis-1,2-Dichloroethylene	040010403238012014	Returned to Compliance	01-JAN-2014	31-DEC-2014	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,2,4-Trichlorobenzene	040010403237812014	Returned to Compliance	01-JAN-2014	31-DEC-2014	No
MR	Monitoring, Regular	Nitrate Rule	Nitrate	040010403104012014	Returned to Compliance	01-JAN-2014	31-DEC-2014	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	2,3,7,8-TCDD	040010403206312014	Returned to Compliance	01-JAN-2014	31-DEC-2016	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Benzene	040010403299012014	Returned to Compliance	01-JAN-2014	31-DEC-2014	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Toluene	040010403299112014	Returned to Compliance	01-JAN-2014	31-DEC-2014	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Ethylbenzene	040010403299212014	Returned to Compliance	01-JAN-2014	31-DEC-2014	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Styrene	040010403299612014	Returned to Compliance	01-JAN-2014	31-DEC-2014	No
MR	Monitoring, Regular	Radionuclides and Revised Rad Rule	Gross Beta Particle Activity	040010403410012014	Returned to Compliance	01-JAN-2014	31-MAR-2014	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Carbon tetrachloride	040010403298212014	Returned to Compliance	01-JAN-2014	31-DEC-2014	No
MR	Monitoring, Routine Major (TCR)	Total Coliform Rule	Coliform (TCR)	040010423310092013	Returned to Compliance	01-SEP-2013	30-SEP-2013	No
MR	Monitoring, Routine Major (TCR)	Total Coliform Rule	Coliform (TCR)	040010423310082013	Returned to Compliance	01-AUG-2013	31-AUG-2013	No
Other	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	Consumer Confidence Rule	040010471700072013	Returned to Compliance	01-JUL-2013	-	No
MCL	Maximum Contaminant Level Violation, Single Sample	Radionuclides and Revised Rad Rule	Gross Beta Particle Activity	040010401410072013	Returned to Compliance	01-JUL-2013	30-SEP-2013	Yes
MR	Monitoring, Regular	Volatile Organic Chemicals	Benzene	040010403299012013	Returned to Compliance	01-JAN-2013	31-DEC-2013	No
MR	Monitoring, Regular	Volatile Organic Chemicals	CHLOROBENZENE	040010403298912013	Returned to Compliance	01-JAN-2013	31-DEC-2013	No

1 - 50 of 311

Enforcement Actions

Latest Enforcement ID	Associated To Violation ID	Enforcement Action Type Code	Enforcement Action Description	Enforcement Date	Originator Description	Enforcement Comment
0400104IA04032512081	0400104270999102024	EIA	Federal Violation/Reminder Notice	03-APR-2025	Region	Informal Violation Report, look for SDWIS-Fed compliance rate after this action to determine change in behavior.
0400104OX04241789737	040010403206312014	EOX	Federal Compliance achieved	24-APR-2017	Region	-
0400104OX11141686069	040010430245612015	EOX	Federal Compliance achieved	14-NOV-2016	Region	TTHMs and HAA5s sampled on 8/9/2016.
0400104OX11141686068	040010430295012015	EOX	Federal Compliance achieved	14-NOV-2016	Region	TTHMs and HAA5s sampled on 8/9/2016.
0400104OX05201684684	040010403299112016	EOX	Federal Compliance achieved	20-MAY-2016	Region	Toluene sampled March 31, 2016.
0400104OX01131682891	040010403299172015	EOX	Federal Compliance achieved	13-JAN-2016	Region	Sampled from EP001 (from N-Aquifer Wells) in November 2015.
0400104OX01131682889	040010403104012013	EOX	Federal Compliance achieved	13-JAN-2016	Region	Nitrate sampled at both Entry Points in November 2015.
0400104OX01131682892	040010424310082015	EOX	Federal Compliance achieved	13-JAN-2016	Region	Monthly sampling conducted in subsequent months.
0400104OX01131682890	040010403410072015	EOX	Federal Compliance achieved	13-JAN-2016	Region	Sampled from EP002 (from the C-Aquifer Well) in November 2015.
0400104OX11101581966	040010423310042015	EOX	Federal Compliance achieved	10-NOV-2015	Region	Coliform sampled in subsequent months.
0400104OX11101581965	040010403299112015	EOX	Federal Compliance achieved	10-NOV-2015	Region	Toluene sampled in June 2015 during the April through June 2015 quarter.
0400104OX11101581967	040010423310062015	EOX	Federal Compliance achieved	10-NOV-2015	Region	Coliform sampled in subsequent months.
0400104OX11101581964	040010403410012015	EOX	Federal Compliance achieved	10-NOV-2015	Region	Beta photon emitters sampled in June 2015 for the April through June 2015 quarter.
0400104OX06091579062	040010423310032015	EOX	Federal Compliance achieved	09-JUN-2015	Region	Subsequent sampling conducted in May 2015.
0400104OX05111578965	040010423310012015	EOX	Federal Compliance achieved	11-MAY-2015	Region	Subsequent monthly monitoring for coliforms conducted.
0400104OX04211578966	040010471700072014	EOX	Federal Compliance achieved	21-APR-2015	Region	2014 CCR posted on 4/21/15. USEPA received the 2014 CCR on 4/21/15.
0400104OX04151578378	040010403297712014	EOX	Federal Compliance achieved	15-APR-2015	Region	VOCs for EP001 to be sampled annually. 2014 sampling performed on 7/2/2014. Results received in 2015.
0400104OX04151578386	040010403297912014	EOX	Federal Compliance achieved	15-APR-2015	Region	VOCs for EP001 to be sampled annually. 2014 sampling performed on 7/2/2014. Results received in 2015.
0400104OX04151578375	040010403298012014	EOX	Federal Compliance achieved	15-APR-2015	Region	VOCs for EP001 to be sampled annually. 2014 sampling performed on 7/2/2014. Results received in 2015.
0400104OX04151578379	040010403298112014	EOX	Federal Compliance achieved	15-APR-2015	Region	VOCs for EP001 to be sampled annually. 2014 sampling performed on 7/2/2014. Results received in 2015.
0400104OX04151578374	040010403298212014	EOX	Federal Compliance achieved	15-APR-2015	Region	VOCs for EP001 to be sampled annually. 2014 sampling performed on 7/2/2014. Results received in 2015.
0400104OX04151578382	040010403298312014	EOX	Federal Compliance achieved	15-APR-2015	Region	VOCs for EP001 to be sampled annually. 2014 sampling performed on 7/2/2014. Results received in 2015.
0400104OX04151578376	040010403298412014	EOX	Federal Compliance achieved	15-APR-2015	Region	VOCs for EP001 to be sampled annually. 2014 sampling performed on 7/2/2014. Results received in 2015.
0400104OX04151578390	040010403298512014	EOX	Federal Compliance achieved	15-APR-2015	Region	VOCs for EP001 to be sampled annually. 2014 sampling performed on 7/2/2014. Results received in 2015.
0400104OX04151578385	040010403298712014	EOX	Federal Compliance achieved	15-APR-2015	Region	VOCs for EP001 to be sampled annually. 2014 sampling performed on 7/2/2014. Results received in 2015.
0400104OX04151578383	040010403298912014	EOX	Federal Compliance achieved	15-APR-2015	Region	VOCs for EP001 to be sampled annually. 2014 sampling performed on 7/2/2014. Results received in 2015.
0400104OX04151578364	040010403400012008	EOX	Federal Compliance achieved	15-APR-2015	Region	Sampled 7/2/2014.
0400104OX04151578363	040010403400612008	EOX	Federal Compliance achieved	15-APR-2015	Region	Sampled 7/2/2014.
0400104OX04151578362	040010403401012008	EOX	Federal Compliance achieved	15-APR-2015	Region	Sampled 7/2/2014.
0400104OX04151578371	040010403410042014	EOX	Federal Compliance achieved	15-APR-2015	Region	Beta/Photon Emitters collected on 11/19/2014.
0400104OX04151578372	040010403410072014	EOX	Federal Compliance achieved	15-APR-2015	Region	Beta/Photon Emitters collected on 11/19/2014.
0400104OX04151578370	040010403410012014	EOX	Federal Compliance achieved	15-APR-2015	Region	Beta/Photon Emitters collected on 11/19/2014.
0400104OX04151578355	040010403200512011	EOX	Federal Compliance achieved	15-APR-2015	Region	SOC violations for EP001. SOCs sampled 7/2/2014.
0400104OX04151578346	040010403201012011	EOX	Federal Compliance achieved	15-APR-2015	Region	SOC violations for EP001. SOCs sampled 7/2/2014.
0400104OX04151578347	040010403201512011	EOX	Federal Compliance achieved	15-APR-2015	Region	SOC violations for EP001. SOCs sampled 7/2/2014.
0400104OX04151578349	040010403202012011	EOX	Federal Compliance achieved	15-APR-2015	Region	SOC violations for EP001. SOCs sampled 7/2/2014.
0400104OX04151578353	040010403203212011	EOX	Federal Compliance achieved	15-APR-2015	Region	SOC violations for EP001. SOCs sampled 7/2/2014.
0400104OX04151578354	040010403203312011	EOX	Federal Compliance achieved	15-APR-2015	Region	SOC violations for EP001. SOCs sampled 7/2/2014.
0400104OX04151578351	040010403203512011	EOX	Federal Compliance achieved	15-APR-2015	Region	SOC violations for EP001. SOCs sampled 7/2/2014.
0400104OX04151578358	040010403203612011	EOX	Federal Compliance achieved	15-APR-2015	Region	SOC violations for EP001. SOCs sampled 7/2/2014.
0400104OX04151578359	040010403203712011	EOX	Federal Compliance achieved	15-APR-2015	Region	SOC violations for EP001. SOCs sampled 7/2/2014.
0400104OX04151578352	040010403203912011	EOX	Federal Compliance achieved	15-APR-2015	Region	SOC violations for EP001. SOCs sampled 7/2/2014.
0400104OX04151578357	040010403204212011	EOX	Federal Compliance achieved	15-APR-2015	Region	SOC violations for EP001. SOCs sampled 7/2/2014.
0400104OX04151578340	040010403204612011	EOX	Federal Compliance achieved	15-APR-2015	Region	SOC violations for EP001. SOCs sampled 7/2/2014.
0400104OX04151578339	040010403205012011	EOX	Federal Compliance achieved	15-APR-2015	Region	SOC violations for EP001. SOCs sampled 7/2/2014.
0400104OX04151578338	040010403205112011	EOX	Federal Compliance achieved	15-APR-2015	Region	SOC violations for EP001. SOCs sampled 7/2/2014.
0400104OX04151578360	040010403206312011	EOX	Federal Compliance achieved	15-APR-2015	Region	SOC violations for EP001. SOCs sampled 7/2/2014.
0400104OX04151578344	040010403206512011	EOX	Federal Compliance achieved	15-APR-2015	Region	SOC violations for EP001. SOCs sampled 7/2/2014.
0400104OX04151578345	040010403206712011	EOX	Federal Compliance achieved	15-APR-2015	Region	SOC violations for EP001. SOCs sampled 7/2/2014.
0400104OX04151578356	040010403227412011	EOX	Federal Compliance achieved	15-APR-2015	Region	SOC violations for EP001. SOCs sampled 7/2/2014.

1 - 50 of 309

All Facilities

Facility Name	Facility ID	Is Source	Facility Type Description	Water Type Description	Availability Description	Facility Activity Status
Well 3 (Middle Well)	0400104GW003	Yes	Well	Ground water	Other	Inactive
Well 2 (West Well)	0400104GW002	Yes	Well	Ground water	Permanent	Active
Well 1 (East Well)	0400104GW001	Yes	Well	Ground water	Permanent	Active
Well 4/C Aquifer Well	0400104GW004	Yes	Well	Ground water	Other	Inactive
Entry Point for TP001.	0400104EP001	No	Common Headers	-	-	Active
Entry Point for TP002.	0400104EP002	No	Common Headers	-	-	Inactive
PWS# 0400104 distribution system	0400104DS001	No	Distribution System/Zone	-	-	Active
Other Stage 2 Sampling Location	0400104DS002	No	Distribution System/Zone	-	-	Active
Storage Tank 2	0400104ST002	No	Storage	-	-	Active
Storage Tank 3	0400104ST003	No	Storage	-	-	Active
Storage Tank 1	0400104ST001	No	Storage	-	-	Inactive
Chlorination Unit for the 2 Wells	0400104TP001	No	Treatment Plant	-	-	Active
Treatment System for C-Aquifer Well (GW004)	0400104TP002	No	Treatment Plant	-	-	Inactive

1 - 13 of 13

Treatment Processes

Facility Name	Facility ID	Treatment Process	Treatment Objective
Chlorination Unit for the 2 Wells	0400104TP001	Hypochlorination, Pre	Disinfection
Treatment System for C-Aquifer Well (GW004)	0400104TP002	Filtration, Greensand	Iron removal
Treatment System for C-Aquifer Well (GW004)	0400104TP002	Filtration, Greensand	Manganese removal
Treatment System for C-Aquifer Well (GW004)	0400104TP002	Filtration, Cartridge	Particulate removal
Treatment System for C-Aquifer Well (GW004)	0400104TP002	Hypochlorination, Pre	Disinfection
Treatment System for C-Aquifer Well (GW004)	0400104TP002	Activated Carbon, Granular	De-chlorination
Treatment System for C-Aquifer Well (GW004)	0400104TP002	Reverse Osmosis	Inorganics removal
Treatment System for C-Aquifer Well (GW004)	0400104TP002	pH Adjustment, Pre	Softening (hardness removal)

1 - 8 of 8

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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