Safe Drinking Water Information System (SDWIS) Federal Reporting Services

Your Drinking Water Query results from SDWIS Fed Reporting Services

PWS ID	AZ0407017
PWS Name	EPCOR - CHAPARRAL CITY
PWS Type	Community water system
Owner Type	Private
Primary Source	Surface water
Primacy Type	State
Is Wholesaler?	No
Population Served	26026
County Served	Maricopa

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 of Treatment (SWTR-Filter)	Surface Water Treatment Rule	Surface Water Treatment Rule	14900	Returned to Compliance	01-AUG-2024	31-AUG-2024	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	2,4-D	14892	Returned to Compliance	01-JUL-2023	30-SEP-2023	No
MR	Monitoring, Regular	Arsenic Rule	Arsenic	14891	Returned to Compliance	01-APR-2023	30-JUN-2023	No
MR	Monitoring, Regular	Arsenic Rule	Arsenic	14890	Returned to Compliance	01-APR-2023	30-JUN-2023	No
MCL	Maximum Contaminant Level Violation, Single Sample	Arsenic Rule	Arsenic	14883	Returned to Compliance	01-JAN-2019	31-DEC-2019	Yes
MR	Monitoring, Regular	Inorganic Chemicals	Fluoride	14885	Returned to Compliance	01-JAN-2019	31-DEC-2019	No
MR	Monitoring and Reporting (DBP)	Stage 1 Disinfectants and Disinfection Byproducts Rule	CARBON, TOTAL	14881	Known	01-JAN-2019	31-MAR-2019	No
MR	Monitoring, Source Water (LT2)	Long Term 2 Enhanced Surface Water Treatment Rule	Turbidity	14872	Returned to Compliance	01-APR-2018	30-APR-2018	No
MR	Monitoring, Source Water (LT2)	Long Term 2 Enhanced Surface Water Treatment Rule	Cryptosporidium	14873	Returned to Compliance	01-APR-2018	30-APR-2018	No
MR	Monitoring, Source Water (LT2)	Long Term 2 Enhanced Surface Water Treatment Rule	E. COLI	14874	Returned to Compliance	01-APR-2018	30-APR-2018	No
MR	Monitoring, Regular	Inorganic Chemicals	Antimony, Total	14878	Returned to Compliance	01-JAN-2018	31-DEC-2018	No
MR	Monitoring, Regular	Inorganic Chemicals	Fluoride	14879	Returned to Compliance	01-JAN-2018	31-DEC-2018	No
MR	Monitoring, Regular	Inorganic Chemicals	Antimony, Total	14877	Returned to Compliance	01-JAN-2018	31-DEC-2018	No
MR	Monitoring, Regular	Nitrate Rule	Nitrate	14855	Returned to Compliance	01-JAN-2016	31-DEC-2016	No
MCL	Maximum Contaminant Level Violation, Average	Stage 1 Disinfectants and Disinfection Byproducts Rule	TTHM	14698	Returned to Compliance	01-APR-2012	30-JUN-2012	Yes
Other	Consumer Confidence Report Inadequate Reporting	Consumer Confidence Rule	Consumer Confidence Rule	14708	Returned to Compliance	01-OCT-2011	-	No
Other	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	Consumer Confidence Rule	14707	Returned to Compliance	01-JUL-2011	-	No
MCL	Maximum Contaminant Level Violation, Monthly (TCR)	Total Coliform Rule	Coliform (TCR)	14678	Returned to Compliance	01-JUN-2011	30-JUN-2011	Yes
Other	Consumer Confidence Report Inadequate Reporting	Consumer Confidence Rule	Consumer Confidence Rule	14706	Returned to Compliance	01-OCT-2010	-	No
Other	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	Consumer Confidence Rule	14705	Returned to Compliance	01-JUL-2010	-	No
MR	Monitoring, Regular	Inorganic Chemicals	Antimony, Total	14683	Returned to Compliance	01-JAN-2009	31-DEC-2011	No
MR	Monitoring, Regular	Inorganic Chemicals	Chromium	14684	Returned to Compliance	01-JAN-2009	31-DEC-2011	No
MR	Monitoring, Regular	Inorganic Chemicals	Selenium	14688	Returned to Compliance	01-JAN-2009	31-DEC-2011	No
MR	Monitoring, Regular	Inorganic Chemicals	Mercury	14689	Returned to Compliance	01-JAN-2009	31-DEC-2011	No
MR	Monitoring, Regular	Inorganic Chemicals	Beryllium, Total	14687	Returned to Compliance	01-JAN-2009	31-DEC-2011	No
MR	Monitoring, Regular	Inorganic Chemicals	Barium	14690	Returned to Compliance	01-JAN-2009	31-DEC-2011	No
MR	Monitoring and Reporting (DBP)	Stage 1 Disinfectants and Disinfection Byproducts Rule	Chlorine	14651	Returned to Compliance	01-JAN-2009	31-MAR-2009	No
MR	Monitoring, Regular	Inorganic Chemicals	Thallium, Total	14686	Returned to Compliance	01-JAN-2009	31-DEC-2011	No
MR	Monitoring, Regular	Inorganic Chemicals	Cadmium	14685	Returned to Compliance	01-JAN-2009	31-DEC-2011	No
MR	Monitoring, Repeat Major (TCR)	Total Coliform Rule	Coliform (TCR)	14441	Returned to Compliance	01-OCT-2008	31-OCT-2008	No
MR	Monitoring, Routine Minor (TCR)	Total Coliform Rule	Coliform (TCR)	14439	Returned to Compliance	01-JUL-2008	31-JUL-2008	No
Other	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	Consumer Confidence Rule	14704	Returned to Compliance	01-JUL-2008	-	No
MR	Monitoring and Reporting (DBP)	Stage 1 Disinfectants and Disinfection Byproducts Rule	Chlorine	14438	Returned to Compliance	01-APR-2008	30-JUN-2008	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Benzene	14501	Returned to Compliance	01-JAN-2008	31-DEC-2008	No
MR	Monitoring, Regular	Volatile Organic Chemicals	CHLOROBENZENE	14500	Returned to Compliance	01-JAN-2008	31-DEC-2008	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Tetrachloroethylene	14499	Returned to Compliance	01-JAN-2008	31-DEC-2008	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,1,2-Trichloroethane	14498	Returned to Compliance	01-JAN-2008	31-DEC-2008	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Trichloroethylene	14497	Returned to Compliance	01-JAN-2008	31-DEC-2008	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,2-Dichloropropane	14496	Returned to Compliance	01-JAN-2008	31-DEC-2008	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Carbon tetrachloride	14495	Returned to Compliance	01-JAN-2008	31-DEC-2008	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,1,1-Trichloroethane	14494	Returned to Compliance	01-JAN-2008	31-DEC-2008	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,2-Dichloroethane	14493	Returned to Compliance	01-JAN-2008	31-DEC-2008	No
MR	Monitoring, Regular	Volatile Organic Chemicals	trans-1,2-Dichloroethylene	14492	Returned to Compliance	01-JAN-2008	31-DEC-2008	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,1-Dichloroethylene	14491	Returned to Compliance	01-JAN-2008	31-DEC-2008	No
MR	Monitoring, Regular	Volatile Organic Chemicals	p-Dichlorobenzene	14489	Returned to Compliance	01-JAN-2008	31-DEC-2008	No
MR	Monitoring, Regular	Volatile Organic Chemicals	o-Dichlorobenzene	14488	Returned to Compliance	01-JAN-2008	31-DEC-2008	No
MR	Monitoring, Regular	Volatile Organic Chemicals	DICHLOROMETHANE	14487	Returned to Compliance	01-JAN-2008	31-DEC-2008	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Xylenes, Total	14486	Returned to Compliance	01-JAN-2008	31-DEC-2008	No
MR	Monitoring, Regular	Inorganic Chemicals	Chromium	14532	Returned to Compliance	01-JAN-2008	31-DEC-2008	No
MR	Monitoring, Regular	Volatile Organic Chemicals	cis-1,2-Dichloroethylene	14485	Returned to Compliance	01-JAN-2008	31-DEC-2008	No

1 - 50 of 415

Enforcement Actions

Latest Enforcement ID	Associated To Violation ID	Enforcement Action Type Code	Enforcement Action Description	Enforcement Date	Originator Description	Enforcement Comment
5996	14900	SOX	State Compliance achieved	02-OCT-2024	State	-
5970	14892	SOX	State Compliance achieved	01-NOV-2023	State	-
5965	14890	SOX	State Compliance achieved	09-AUG-2023	State	Valid submitted late but needs entered in J Drive Per CH16 08/09/2023
5965	14891	SOX	State Compliance achieved	09-AUG-2023	State	Valid submitted late but needs entered in J Drive Per CH16 08/09/2023
5942	14883	SOX	State Compliance achieved	29-OCT-2020	State	MCL VIOLATION RTC (RAA = 7.6 PPB) ON 10/29/2020 - TH5 11/16/2020
5938	14885	SIE	State Public Notification requested	19-FEB-2020	State	-
5921	14881	SIE	State Public Notification requested	19-APR-2019	State	-
5915	14878	SOX	State Compliance achieved	01-MAR-2019	State	-
5915	14879	SOX	State Compliance achieved	01-MAR-2019	State	-
5915	14877	SOX	State Compliance achieved	01-MAR-2019	State	-
5900	14872	SIA	State Violation/Reminder Notice	27-JUN-2018	State	-
5900	14874	SIA	State Violation/Reminder Notice	27-JUN-2018	State	-
5900	14873	SIA	State Violation/Reminder Notice	27-JUN-2018	State	-
5897	14855	SOX	State Compliance achieved	22-FEB-2017	State	-
5894	9904	SOX	State Compliance achieved	08-AUG-2014	State	-
5881	14364	SOX	State Compliance achieved	17-OCT-2012	State	-
5881	14315	SOX	State Compliance achieved	17-OCT-2012	State	-
5881	14698	SOX	State Compliance achieved	17-OCT-2012	State	-
5889	14708	SOX	State Compliance achieved	12-JUL-2012	State	-
5877	14678	SOX	State Compliance achieved	06-JUL-2012	State	-
5888	14707	SOX	State Compliance achieved	30-JUN-2012	State	-
5868	14690	SOX	State Compliance achieved	19-MAR-2012	State	-
5868	14688	SOX	State Compliance achieved	19-MAR-2012	State	-
5868	14687	SOX	State Compliance achieved	19-MAR-2012	State	-
5868	14686	SOX	State Compliance achieved	19-MAR-2012	State	-
5868	14685	SOX	State Compliance achieved	19-MAR-2012	State	-
5868	14684	SOX	State Compliance achieved	19-MAR-2012	State	-
5868	14683	SOX	State Compliance achieved	19-MAR-2012	State	-
5868	14689	SOX	State Compliance achieved	19-MAR-2012	State	-
5886	14705	SOX	State Compliance achieved	31-DEC-2010	State	-
5886	14706	SOX	State Compliance achieved	31-DEC-2010	State	-
5866	11705	SOX	State Compliance achieved	20-DEC-2010	State	-
5866	11905	SOX	State Compliance achieved	20-DEC-2010	State	-
5860	14441	SOX	State Compliance achieved	08-OCT-2009	State	-
5850	14522	SOX	State Compliance achieved	20-JUL-2009	State	-
5850	14517	SOX	State Compliance achieved	20-JUL-2009	State	-
5850	14515	SOX	State Compliance achieved	20-JUL-2009	State	-
5850	14528	SOX	State Compliance achieved	20-JUL-2009	State	-
5850	14509	SOX	State Compliance achieved	20-JUL-2009	State	-
5850	14506	SOX	State Compliance achieved	20-JUL-2009	State	-
5850	14505	SOX	State Compliance achieved	20-JUL-2009	State	-
5850	14523	SOX	State Compliance achieved	20-JUL-2009	State	-
5850	14512	SOX	State Compliance achieved	20-JUL-2009	State	-
5839	14398	SO0	State no longer subject to Rule	11-MAY-2009	State	-
5839	14400	SO0	State no longer subject to Rule	11-MAY-2009	State	-
5839	14401	SO0	State no longer subject to Rule	11-MAY-2009	State	-
5839	14403	SO0	State no longer subject to Rule	11-MAY-2009	State	-
5839	14405	SO0	State no longer subject to Rule	11-MAY-2009	State	-
5839	14407	SO0	State no longer subject to Rule	11-MAY-2009	State	-
5839	14409	SO0	State no longer subject to Rule	11-MAY-2009	State	-

1 - 50 of 410

All Facilities

Facility Name	Facility ID	Is Source	Facility Type Description	Water Type Description	Availability Description	Facility Activity Status
IN-U070170SI - CAP	11027	Yes	Intake	Surface water	Permanent	Active
XWL-55-604785 - 9	4329	Yes	Well	Ground water	Permanent	Inactive
WL-55-604787 - 11	6702	Yes	Well	Ground water	Permanent	Active
WL-55-604786 - 10	4330	Yes	Well	Ground water	Permanent	Active
XIN-U070171SI	11106	Yes	Intake	Surface water	Permanent	Inactive
EPDS005	8448	No	Clear Well	-	-	Active
XEPDS001	8447	No	Clear Well	-	-	Inactive
DISTRIBUTION SYSTEM	13349	No	Distribution System/Zone	-	-	Active
EPDS003	9089	No	Sampling Station	-	-	Active
EPDS004	9090	No	Sampling Station	-	-	Active
XEPDS002	16483	No	Sampling Station	-	-	Inactive
XEPHIS	17454	No	Sampling Station	-	-	Inactive
TP003 - CL2, AS	17065	No	Treatment Plant	-	-	Active
TP005	780	No	Treatment Plant	-	-	Active
XTP004 - CL2	781	No	Treatment Plant	-	-	Inactive

1 - 15 of 15

Treatment Processes

Facility Name	Facility ID	Treatment Process	Treatment Objective
TP003 - CL2, AS	17065	Hypochlorination, Post	Disinfection
TP003 - CL2, AS	17065	Ion Exchange	Inorganics removal
TP003 - CL2, AS	17065	Innovative	Inorganics removal
TP005	780	Rapid Mix	Particulate removal
TP005	780	Gaseous Chlorination, Pre	Disinfection
TP005	780	Permanganate	Taste / odor control
TP005	780	Coagulation	Particulate removal
XTP004 - CL2	781	Rapid Mix	Particulate removal
XTP004 - CL2	781	Gaseous Chlorination, Pre	Disinfection
XTP004 - CL2	781	Permanganate	Taste / odor control
XTP004 - CL2	781	Coagulation	Particulate removal

1 - 11 of 11

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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