Safe Drinking Water Information System (SDWIS) Federal Reporting Services

Your Drinking Water Query results from SDWIS Fed Reporting Services

PWS ID	AZ0408129
PWS Name	EPCOR - WILLOW VALLEY/LAKE CIMARRON
PWS Type	Community water system
Owner Type	Private
Primary Source	Ground water
Primacy Type	State
Is Wholesaler?	No
Population Served	596
County Served	Mohave

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	Chlorite	9729	Returned to Compliance	01-MAR-2023	31-MAR-2023	No
MR	Monitoring and Reporting (DBP)	Stage 1 Disinfectants and Disinfection Byproducts Rule	Chlorite	9728	Returned to Compliance	01-DEC-2022	31-DEC-2022	No
MR	Monitoring and Reporting (DBP)	Stage 2 Disinfectants and Disinfection Byproducts Rule	Total Haloacetic Acids (HAA5)	9727	Returned to Compliance	01-FEB-2022	30-APR-2022	No
MR	Monitoring and Reporting (DBP)	Stage 1 Disinfectants and Disinfection Byproducts Rule	Chlorine dioxide	9726	Returned to Compliance	01-JUL-2020	31-JUL-2020	No
MR	Monitoring and Reporting (DBP)	Stage 1 Disinfectants and Disinfection Byproducts Rule	Chlorite	9721	Returned to Compliance	01-JUL-2020	31-JUL-2020	No
MCL	Maximum Contaminant Level Violation, Average	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	9718	Returned to Compliance	01-JAN-2017	31-MAR-2017	Yes
MR	Monitoring and Reporting (DBP)	Stage 1 Disinfectants and Disinfection Byproducts Rule	Chlorine	9716	Returned to Compliance	01-OCT-2015	31-DEC-2015	No
Other	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	Consumer Confidence Rule	9713	Returned to Compliance	01-JUL-2015	-	No
MR	Monitoring and Reporting (DBP)	Stage 1 Disinfectants and Disinfection Byproducts Rule	Total Haloacetic Acids (HAA5)	9691	Returned to Compliance	01-JAN-2013	31-MAR-2013	No
MR	Monitoring and Reporting (DBP)	Stage 1 Disinfectants and Disinfection Byproducts Rule	TTHM	9690	Returned to Compliance	01-JAN-2013	31-MAR-2013	No
Other	Consumer Confidence Report Inadequate Reporting	Consumer Confidence Rule	Consumer Confidence Rule	9644	Returned to Compliance	01-OCT-2011	-	No
Other	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	Consumer Confidence Rule	9642	Returned to Compliance	01-JUL-2010	-	No
Other	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	Consumer Confidence Rule	9641	Returned to Compliance	01-JUL-2009	-	No
MR	Monitoring and Reporting (DBP)	Stage 1 Disinfectants and Disinfection Byproducts Rule	Total Haloacetic Acids (HAA5)	9633	Returned to Compliance	01-JUL-2008	30-SEP-2008	No
MR	Monitoring and Reporting (DBP)	Stage 1 Disinfectants and Disinfection Byproducts Rule	TTHM	9632	Returned to Compliance	01-JUL-2008	30-SEP-2008	No
MCL	Maximum Contaminant Level Violation, Monthly (TCR)	Total Coliform Rule	Coliform (TCR)	9628	Returned to Compliance	01-JUN-2008	30-JUN-2008	Yes
MR	Monitoring and Reporting (DBP)	Stage 1 Disinfectants and Disinfection Byproducts Rule	Total Haloacetic Acids (HAA5)	9630	Returned to Compliance	01-APR-2008	30-JUN-2008	No
MR	Monitoring and Reporting (DBP)	Stage 1 Disinfectants and Disinfection Byproducts Rule	Total Haloacetic Acids (HAA5)	9629	Returned to Compliance	01-JAN-2008	31-MAR-2008	No
Other	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	Consumer Confidence Rule	9616	Returned to Compliance	01-JUL-2007	-	No
MR	Monitoring, Routine Major (TCR)	Total Coliform Rule	Coliform (TCR)	9611	Returned to Compliance	01-NOV-2006	30-NOV-2006	No
MR	Monitoring and Reporting (DBP)	Stage 1 Disinfectants and Disinfection Byproducts Rule	Chlorine	9660	Returned to Compliance	01-OCT-2006	31-DEC-2006	No
MR	Monitoring and Reporting (DBP)	Stage 1 Disinfectants and Disinfection Byproducts Rule	Chlorine	9607	Returned to Compliance	01-JUL-2006	30-SEP-2006	No
Other	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	Consumer Confidence Rule	9610	Returned to Compliance	01-JUL-2006	-	No
MR	Monitoring and Reporting (DBP)	Stage 1 Disinfectants and Disinfection Byproducts Rule	TTHM	9614	Returned to Compliance	01-JAN-2006	31-DEC-2006	No
MR	Monitoring and Reporting (DBP)	Stage 1 Disinfectants and Disinfection Byproducts Rule	Chlorine	9406	Returned to Compliance	01-JAN-2006	31-MAR-2006	No
MR	Monitoring and Reporting (DBP)	Stage 1 Disinfectants and Disinfection Byproducts Rule	Total Haloacetic Acids (HAA5)	9615	Returned to Compliance	01-JAN-2006	31-DEC-2006	No
MR	Monitoring and Reporting (DBP)	Stage 1 Disinfectants and Disinfection Byproducts Rule	Chlorine	8906	Returned to Compliance	01-OCT-2005	31-DEC-2005	No
MR	Monitoring and Reporting (DBP)	Stage 1 Disinfectants and Disinfection Byproducts Rule	Chlorine	8405	Returned to Compliance	01-JUL-2005	30-SEP-2005	No
Other	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	Consumer Confidence Rule	8105	Returned to Compliance	01-JUL-2005	-	No
MR	Monitoring and Reporting (DBP)	Stage 1 Disinfectants and Disinfection Byproducts Rule	Chlorine	8005	Returned to Compliance	01-APR-2005	30-JUN-2005	No
MR	Monitoring and Reporting (DBP)	Stage 1 Disinfectants and Disinfection Byproducts Rule	TTHM	9206	Returned to Compliance	01-JAN-2005	31-DEC-2005	No
MR	Monitoring and Reporting (DBP)	Stage 1 Disinfectants and Disinfection Byproducts Rule	Total Haloacetic Acids (HAA5)	9306	Returned to Compliance	01-JAN-2005	31-DEC-2005	No
MR	Monitoring and Reporting (DBP)	Stage 1 Disinfectants and Disinfection Byproducts Rule	Chlorine	7305	Returned to Compliance	01-JAN-2005	31-MAR-2005	No
MR	Monitoring and Reporting (DBP)	Stage 1 Disinfectants and Disinfection Byproducts Rule	Chlorine	7005	Returned to Compliance	01-OCT-2004	31-DEC-2004	No
MCL	Maximum Contaminant Level Violation, Monthly (TCR)	Total Coliform Rule	Coliform (TCR)	6905	Returned to Compliance	01-SEP-2004	30-SEP-2004	Yes
MR	Monitoring, Routine Major (TCR)	Total Coliform Rule	Coliform (TCR)	6804	Returned to Compliance	01-JUL-2004	31-JUL-2004	No
MR	Monitoring and Reporting (DBP)	Stage 1 Disinfectants and Disinfection Byproducts Rule	Chlorine	9651	Returned to Compliance	01-APR-2004	30-JUN-2004	No
MR	Monitoring and Reporting (DBP)	Stage 1 Disinfectants and Disinfection Byproducts Rule	Total Haloacetic Acids (HAA5)	7705	Returned to Compliance	01-JAN-2004	31-DEC-2004	No
MR	Monitoring and Reporting (DBP)	Stage 1 Disinfectants and Disinfection Byproducts Rule	TTHM	7605	Returned to Compliance	01-JAN-2004	31-DEC-2004	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Xylenes, Total	2003	Returned to Compliance	01-JAN-2003	31-MAR-2003	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Xylenes, Total	1903	Returned to Compliance	01-JUL-2002	30-SEP-2002	No
Other	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	Consumer Confidence Rule	9640	Returned to Compliance	01-JUL-2002	-	No
MR	Monitoring, Repeat Major (TCR)	Total Coliform Rule	Coliform (TCR)	202	Returned to Compliance	01-JUN-2002	30-JUN-2002	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Xylenes, Total	1802	Returned to Compliance	01-APR-2002	30-JUN-2002	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Xylenes, Total	1702	Returned to Compliance	01-JAN-2002	31-MAR-2002	No
MR	Monitoring, Regular	Nitrate Rule	Nitrate	702	Returned to Compliance	01-JAN-2001	31-DEC-2001	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Xylenes, Total	1601	Returned to Compliance	01-OCT-2000	31-DEC-2000	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Xylenes, Total	1501	Returned to Compliance	01-JUL-2000	30-SEP-2000	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Xylenes, Total	1400	Returned to Compliance	01-APR-2000	30-JUN-2000	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Xylenes, Total	1300	Returned to Compliance	01-JAN-2000	31-MAR-2000	No

1 - 50 of 106

Enforcement Actions

Latest Enforcement ID	Associated To Violation ID	Enforcement Action Type Code	Enforcement Action Description	Enforcement Date	Originator Description	Enforcement Comment
6650	9729	SIA	State Violation/Reminder Notice	10-MAY-2023	State	-
6647	9728	SOX	State Compliance achieved	16-FEB-2023	State	Late data submitted 1/13/2023. Js26 2/16/2023
6646	9727	SOX	State Compliance achieved	16-AUG-2022	State	Late data submitted 7/21/2022. JS26 8/16/2022
6635	9721	SIA	State Violation/Reminder Notice	03-DEC-2020	State	-
6641	9726	SIA	State Violation/Reminder Notice	03-DEC-2020	State	-
6629	9718	SOX	State Compliance achieved	11-MAY-2017	State	Q2 2017 Data received on 5/11/17 brought the LRAA for 01-A and 02-A below the MCL limit without additional M&R or MCL violations. SOX'd AL2 5/17/17
6620	9716	SOX	State Compliance achieved	11-JAN-2016	State	-
6619	9713	SOX	State Compliance achieved	24-JUL-2015	State	-
6618	9691	SOX	State Compliance achieved	05-DEC-2014	State	-
6618	9690	SOX	State Compliance achieved	05-DEC-2014	State	-
6616	9644	SOX	State Compliance achieved	11-OCT-2011	State	-
6615	9642	SOX	State Compliance achieved	04-OCT-2010	State	-
6609	9629	SOX	State Compliance achieved	05-AUG-2009	State	-
6609	9630	SOX	State Compliance achieved	05-AUG-2009	State	-
6614	9641	SOX	State Compliance achieved	14-JUL-2009	State	-
6607	9628	SOX	State Compliance achieved	12-MAR-2009	State	-
6606	9633	SOX	State Compliance achieved	13-NOV-2008	State	-
6606	9632	SOX	State Compliance achieved	13-NOV-2008	State	-
6604	7605	SOX	State Compliance achieved	04-DEC-2007	State	-
6604	9614	SOX	State Compliance achieved	04-DEC-2007	State	-
6604	9306	SOX	State Compliance achieved	04-DEC-2007	State	-
6604	9206	SOX	State Compliance achieved	04-DEC-2007	State	-
6604	7705	SOX	State Compliance achieved	04-DEC-2007	State	-
6604	9615	SOX	State Compliance achieved	04-DEC-2007	State	-
6613	9616	SOX	State Compliance achieved	22-OCT-2007	State	-
6601	9660	SOX	State Compliance achieved	09-APR-2007	State	-
6601	9607	SOX	State Compliance achieved	09-APR-2007	State	-
6600	9610	SOX	State Compliance achieved	26-MAR-2007	State	-
6505	9611	SOX	State Compliance achieved	03-JAN-2007	State	-
6578	9406	SOX	State Compliance achieved	09-MAY-2006	State	-
6577	8405	SOX	State Compliance achieved	30-MAR-2006	State	-
6577	8906	SOX	State Compliance achieved	30-MAR-2006	State	-
6586	8105	SOX	State Compliance achieved	12-DEC-2005	State	-
6575	7005	SOX	State Compliance achieved	11-AUG-2005	State	-
6575	8005	SOX	State Compliance achieved	11-AUG-2005	State	-
6575	7305	SOX	State Compliance achieved	11-AUG-2005	State	-
6611	6804	SOX	State Compliance achieved	27-APR-2005	State	-
6611	6905	SOX	State Compliance achieved	27-APR-2005	State	-
6576	9651	SOX	State Compliance achieved	02-AUG-2004	State	-
2803	1903	SOX	State Compliance achieved	05-JUN-2003	State	AUTO RTC
1403	2003	SOX	State Compliance achieved	05-JUN-2003	State	AUTO RTC
6612	9640	SOX	State Compliance achieved	09-MAY-2003	State	-
2503	202	SOX	State Compliance achieved	09-APR-2003	State	AUTO RTC
2503	702	SOX	State Compliance achieved	09-APR-2003	State	AUTO RTC
1903	1100	SOX	State Compliance achieved	19-NOV-2002	State	AUTO RTC
2603	1702	SOX	State Compliance achieved	19-NOV-2002	State	AUTO RTC
2403	1601	SOX	State Compliance achieved	19-NOV-2002	State	AUTO RTC
2303	1501	SOX	State Compliance achieved	19-NOV-2002	State	AUTO RTC
3303	899	SOX	State Compliance achieved	19-NOV-2002	State	AUTO RTC
3403	999	SOX	State Compliance achieved	19-NOV-2002	State	AUTO RTC

1 - 50 of 106

All Facilities

Facility Name	Facility ID	Is Source	Facility Type Description	Water Type Description	Availability Description	Facility Activity Status
WL-55-604161 - SMALL WELL	6851	Yes	Well	Ground water	Emergency	Active
WL-55-604160 - LARGE WELL	6850	Yes	Well	Ground water	Permanent	Active
DISTRIBUTION SYSTEM	12440	No	Distribution System/Zone	-	-	Active
EPDS001	191	No	Sampling Station	-	-	Active
XEPHIS	17614	No	Sampling Station	-	-	Inactive
STORAGE TANK 001 - 250,000	22571	No	Storage	-	-	Active
TP001 - CL2, CLO2, FE, MN	575	No	Treatment Plant	-	-	Active

1 - 7 of 7

Treatment Processes

Facility Name	Facility ID	Treatment Process	Treatment Objective
TP001 - CL2, CLO2, FE, MN	575	Filtration, Pressure Sand	Particulate removal
TP001 - CL2, CLO2, FE, MN	575	Hypochlorination, Post	Disinfection
TP001 - CL2, CLO2, FE, MN	575	Chlorination (FRDS-1.5)	Disinfection
TP001 - CL2, CLO2, FE, MN	575	Chlorine Dioxide	Disinfection by-products control
TP001 - CL2, CLO2, FE, MN	575	Coagulation	Iron removal

1 - 5 of 5

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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