Safe Drinking Water Information System (SDWIS) Federal Reporting Services

Your Drinking Water Query results from SDWIS Fed Reporting Services

PWS ID	AZ0407121
PWS Name	EPCOR- RIO VERDE
PWS Type	Community water system
Owner Type	Public/Private
Primary Source	Ground water
Primacy Type	State
Is Wholesaler?	No
Population Served	5330
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 and Reporting (DBP)	Stage 1 Disinfectants and Disinfection Byproducts Rule	Chlorine	2320	Returned to Compliance	01-APR-2025	30-APR-2025	No
MR	Lead Consumer Notice	Lead and Copper Rule	Lead and Copper Rule	2318	Returned to Compliance	01-JAN-2024	-	No
MON	Monitoring, Routine (RTCR)	Revised Total Coliform Rule	Revised Total Coliform Rule	2313	Returned to Compliance	01-JUL-2022	31-JUL-2022	No
MR	Monitoring and Reporting (DBP)	Stage 1 Disinfectants and Disinfection Byproducts Rule	Chlorine	2311	Returned to Compliance	01-OCT-2018	31-DEC-2018	No
MR	Monitoring and Reporting (DBP)	Stage 1 Disinfectants and Disinfection Byproducts Rule	Chlorine	2305	Returned to Compliance	01-APR-2018	30-JUN-2018	No
RPT	Report Sample Result/Fail Monitor (RTCR)	Revised Total Coliform Rule	Revised Total Coliform Rule	2298	Returned to Compliance	01-JAN-2018	-	No
MR	Monitoring and Reporting (DBP)	Stage 1 Disinfectants and Disinfection Byproducts Rule	Chlorine	2302	Returned to Compliance	01-JAN-2018	31-MAR-2018	No
RPT	Report Sample Result/Fail Monitor (RTCR)	Revised Total Coliform Rule	Revised Total Coliform Rule	2295	Returned to Compliance	01-OCT-2017	-	No
MR	Monitoring and Reporting (DBP)	Stage 1 Disinfectants and Disinfection Byproducts Rule	Chlorine	2299	Returned to Compliance	01-OCT-2017	31-DEC-2017	No
MR	Monitoring and Reporting (DBP)	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	2308	Returned to Compliance	01-AUG-2017	31-JUL-2018	No
MR	Monitoring and Reporting (DBP)	Stage 2 Disinfectants and Disinfection Byproducts Rule	Total Haloacetic Acids (HAA5)	2309	Returned to Compliance	01-AUG-2017	31-JUL-2018	No
MR	Monitoring and Reporting (DBP)	Stage 1 Disinfectants and Disinfection Byproducts Rule	Chlorine	2291	Returned to Compliance	01-JUL-2017	30-SEP-2017	No
MR	Monitoring and Reporting (DBP)	Stage 1 Disinfectants and Disinfection Byproducts Rule	Chlorine	2287	Returned to Compliance	01-APR-2017	30-JUN-2017	No
MR	Monitoring and Reporting (DBP)	Stage 1 Disinfectants and Disinfection Byproducts Rule	Chlorine	2282	Returned to Compliance	01-JAN-2017	31-MAR-2017	No
Other	Consumer Confidence Report Inadequate Reporting	Consumer Confidence Rule	Consumer Confidence Rule	2275	Returned to Compliance	01-OCT-2016	-	No
MR	Monitoring and Reporting (DBP)	Stage 1 Disinfectants and Disinfection Byproducts Rule	Chlorine	2276	Returned to Compliance	01-OCT-2016	31-DEC-2016	No
MR	Monitoring and Reporting (DBP)	Stage 2 Disinfectants and Disinfection Byproducts Rule	Total Haloacetic Acids (HAA5)	2293	Returned to Compliance	01-AUG-2016	31-JUL-2017	No
MR	Monitoring and Reporting (DBP)	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	2292	Returned to Compliance	01-AUG-2016	31-JUL-2017	No
Other	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	Consumer Confidence Rule	2274	Returned to Compliance	01-JUL-2016	-	No
MR	Monitoring, Routine Major (TCR)	Total Coliform Rule	Coliform (TCR)	2268	Returned to Compliance	01-FEB-2016	29-FEB-2016	No
MR	Monitoring and Reporting (DBP)	Stage 1 Disinfectants and Disinfection Byproducts Rule	Chlorine	2271	Returned to Compliance	01-JAN-2016	31-MAR-2016	No
Other	Consumer Confidence Report Inadequate Reporting	Consumer Confidence Rule	Consumer Confidence Rule	2266	Returned to Compliance	01-OCT-2015	-	No
MR	Monitoring and Reporting (DBP)	Stage 1 Disinfectants and Disinfection Byproducts Rule	Chlorine	2263	Returned to Compliance	01-JUL-2015	30-SEP-2015	No
Other	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	Consumer Confidence Rule	2267	Returned to Compliance	01-JUL-2015	-	No
MR	Monitoring and Reporting (DBP)	Stage 1 Disinfectants and Disinfection Byproducts Rule	Chlorine	2262	Returned to Compliance	01-APR-2015	30-JUN-2015	No
MR	Monitoring and Reporting (DBP)	Stage 1 Disinfectants and Disinfection Byproducts Rule	Chlorine	2257	Returned to Compliance	01-JAN-2015	31-MAR-2015	No
MR	Monitoring and Reporting (DBP)	Stage 1 Disinfectants and Disinfection Byproducts Rule	Chlorine	2229	Returned to Compliance	01-OCT-2014	31-DEC-2014	No
Other	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	Consumer Confidence Rule	2208	Returned to Compliance	01-JUL-2014	-	No
MR	Monitoring and Reporting (DBP)	Stage 1 Disinfectants and Disinfection Byproducts Rule	Chlorine	2253	Returned to Compliance	01-APR-2014	30-JUN-2014	No
MR	Monitoring and Reporting (DBP)	Stage 1 Disinfectants and Disinfection Byproducts Rule	Chlorine	2250	Returned to Compliance	01-JAN-2014	31-MAR-2014	No
MR	Monitoring and Reporting (DBP)	Stage 1 Disinfectants and Disinfection Byproducts Rule	Chlorine	2244	Returned to Compliance	01-JUL-2013	30-SEP-2013	No
MR	Monitoring, Routine Minor (TCR)	Total Coliform Rule	Coliform (TCR)	2173	Returned to Compliance	01-JUN-2013	30-JUN-2013	No
MR	Monitoring, Routine Major (TCR)	Total Coliform Rule	Coliform (TCR)	2168	Returned to Compliance	01-FEB-2013	28-FEB-2013	No
MR	Monitoring, Routine Major (TCR)	Total Coliform Rule	Coliform (TCR)	2167	Returned to Compliance	01-JAN-2013	31-JAN-2013	No
Other	Consumer Confidence Report Inadequate Reporting	Consumer Confidence Rule	Consumer Confidence Rule	2166	Returned to Compliance	01-OCT-2012	-	No
MR	Monitoring and Reporting (DBP)	Stage 1 Disinfectants and Disinfection Byproducts Rule	Chlorine	2235	Returned to Compliance	01-OCT-2012	31-DEC-2012	No
Other	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	Consumer Confidence Rule	2165	Returned to Compliance	01-JUL-2012	-	No
MR	Monitoring and Reporting (DBP)	Stage 1 Disinfectants and Disinfection Byproducts Rule	Chlorine	2225	Returned to Compliance	01-APR-2012	30-JUN-2012	No
MR	Monitoring and Reporting (DBP)	Stage 1 Disinfectants and Disinfection Byproducts Rule	Total Haloacetic Acids (HAA5)	2170	Returned to Compliance	01-JAN-2012	31-DEC-2012	No
MR	Monitoring and Reporting (DBP)	Stage 1 Disinfectants and Disinfection Byproducts Rule	TTHM	2169	Returned to Compliance	01-JAN-2012	31-DEC-2012	No
MR	Monitoring, Routine Major (TCR)	Total Coliform Rule	Coliform (TCR)	2162	Returned to Compliance	01-DEC-2011	31-DEC-2011	No
Other	Consumer Confidence Report Inadequate Reporting	Consumer Confidence Rule	Consumer Confidence Rule	2177	Returned to Compliance	01-OCT-2011	-	No
Other	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	Consumer Confidence Rule	2176	Returned to Compliance	01-JUL-2011	-	No
MR	Monitoring, Routine Major (TCR)	Total Coliform Rule	Coliform (TCR)	2159	Returned to Compliance	01-MAY-2011	31-MAY-2011	No
MR	Monitoring, Routine Major (TCR)	Total Coliform Rule	Coliform (TCR)	2158	Returned to Compliance	01-APR-2011	30-APR-2011	No
MR	Monitoring and Reporting (DBP)	Stage 1 Disinfectants and Disinfection Byproducts Rule	Chlorine	2214	Returned to Compliance	01-APR-2011	30-JUN-2011	No
MR	Monitoring and Reporting (DBP)	Stage 1 Disinfectants and Disinfection Byproducts Rule	Chlorine	2217	Returned to Compliance	01-JAN-2011	31-MAR-2011	No
MR	Monitoring, Routine Major (TCR)	Total Coliform Rule	Coliform (TCR)	2156	Returned to Compliance	01-JAN-2011	31-JAN-2011	No
MR	Monitoring, Routine Minor (TCR)	Total Coliform Rule	Coliform (TCR)	2157	Returned to Compliance	01-JUL-2010	31-JUL-2010	No
MR	Monitoring, Routine Major (TCR)	Total Coliform Rule	Coliform (TCR)	2155	Returned to Compliance	01-JUL-2010	31-JUL-2010	No

1 - 50 of 96

Enforcement Actions

Latest Enforcement ID	Associated To Violation ID	Enforcement Action Type Code	Enforcement Action Description	Enforcement Date	Originator Description	Enforcement Comment
363	2320	SOX	State Compliance achieved	01-DEC-2025	State	-
352	2318	SIA	State Violation/Reminder Notice	21-FEB-2024	State	-
349	2313	SOX	State Compliance achieved	08-SEP-2022	State	Correct number of August 2022 RTCR results submitted 9/8/22
343	2311	SIA	State Violation/Reminder Notice	07-FEB-2019	State	-
338	2309	SOX	State Compliance achieved	30-NOV-2018	State	PWS submitted late DBP2 results on 10/30/2018 - TH5 11/07/2018
338	2308	SOX	State Compliance achieved	30-NOV-2018	State	PWS submitted late DBP2 results on 10/30/2018 - TH5 11/07/2018
335	2305	SOX	State Compliance achieved	13-JUL-2018	State	-
332	2302	SIA	State Violation/Reminder Notice	03-MAY-2018	State	-
326	2298	SOX	State Compliance achieved	14-FEB-2018	State	PWS submitted the results late on 2/14/18. The 3A violation is being rejected and replaced with a 4B violation. DML 2/14/18
327	2299	SOX	State Compliance achieved	16-JAN-2018	State	Data received late on 1/16/18. DML 2/15/18
324	2293	SOX	State Compliance achieved	27-NOV-2017	State	PWS submitted the report on 11/27/17. DML 11/27/17
324	2292	SOX	State Compliance achieved	27-NOV-2017	State	PWS submitted the report on 11/27/17. DML 11/27/17
325	2295	SOX	State Compliance achieved	20-NOV-2017	State	ADEQ received the data on 11/20/17. The 3A violation is being rejected and a 4B violation is being given instead. DML 11/28/17
323	2291	SOX	State Compliance achieved	16-OCT-2017	State	The 3Q17 MRDL data was received on 10/16/17. DML 11/7/17
322	2287	SOX	State Compliance achieved	01-AUG-2017	State	The data was received on 8/2/17. DML 8/2/17
320	2282	SIA	State Violation/Reminder Notice	09-MAY-2017	State	-
311	2276	SIA	State Violation/Reminder Notice	08-MAR-2017	State	-
313	2275	SOX	State Compliance achieved	06-MAR-2017	State	-
314	2274	SOX	State Compliance achieved	06-MAR-2017	State	-
308	2271	SOX	State Compliance achieved	28-JUN-2016	State	MRDL Data submitted 6/28/2016 LT 7/25/2016
305	2268	SOX	State Compliance achieved	15-APR-2016	State	-
303	2263	SOX	State Compliance achieved	05-JAN-2016	State	-
304	2266	SOX	State Compliance achieved	04-DEC-2015	State	-
304	2267	SOX	State Compliance achieved	04-DEC-2015	State	-
298	2262	SOX	State Compliance achieved	11-AUG-2015	State	-
294	2257	SOX	State Compliance achieved	06-MAY-2015	State	-
290	2229	SOX	State Compliance achieved	26-MAR-2015	State	-
281	2208	SOX	State Compliance achieved	30-SEP-2014	State	-
289	2253	SOX	State Compliance achieved	07-AUG-2014	State	-
288	2250	SOX	State Compliance achieved	06-MAY-2014	State	-
276	2141	SOX	State Compliance achieved	11-MAR-2014	State	-
276	2142	SOX	State Compliance achieved	11-MAR-2014	State	-
276	2160	SOX	State Compliance achieved	11-MAR-2014	State	-
276	2161	SOX	State Compliance achieved	11-MAR-2014	State	-
276	2163	SOX	State Compliance achieved	11-MAR-2014	State	-
276	2164	SOX	State Compliance achieved	11-MAR-2014	State	-
276	2169	SOX	State Compliance achieved	11-MAR-2014	State	-
276	2170	SOX	State Compliance achieved	11-MAR-2014	State	-
276	2127	SOX	State Compliance achieved	11-MAR-2014	State	-
276	2126	SOX	State Compliance achieved	11-MAR-2014	State	-
276	2114	SOX	State Compliance achieved	11-MAR-2014	State	-
276	2115	SOX	State Compliance achieved	11-MAR-2014	State	-
284	2244	SOX	State Compliance achieved	05-NOV-2013	State	-
272	2173	SOX	State Compliance achieved	12-SEP-2013	State	-
274	2166	SOX	State Compliance achieved	28-JUN-2013	State	-
274	2177	SOX	State Compliance achieved	28-JUN-2013	State	-
274	2176	SOX	State Compliance achieved	28-JUN-2013	State	-
274	2165	SOX	State Compliance achieved	28-JUN-2013	State	-
267	2167	SOX	State Compliance achieved	18-APR-2013	State	-
267	2168	SOX	State Compliance achieved	18-APR-2013	State	-

1 - 50 of 90

All Facilities

Facility Name	Facility ID	Is Source	Facility Type Description	Water Type Description	Availability Description	Facility Activity Status
XWL-55-510881 - 5	6872	Yes	Well	Ground water	Other	Inactive
WL-55-578746 - 9	7826	Yes	Well	Ground water	Permanent	Active
WL-55-511320 - 6	6157	Yes	Well	Ground water	Permanent	Active
WL-55-606808 - 4	6156	Yes	Well	Ground water	Permanent	Active
WL-55-606073 - 1	5979	Yes	Well	Ground water	Permanent	Active
WL-55-606071 - 2	5503	Yes	Well	Ground water	Permanent	Active
XWL-55-606072 - 3	7149	Yes	Well	Ground water	Other	Inactive
DISTRIBUTION SYSTEM	14053	No	Distribution System/Zone	-	-	Active
EPDS001	136	No	Sampling Station	-	-	Active
XEPHIS	17502	No	Sampling Station	-	-	Inactive
TP001 - CL2	1356	No	Treatment Plant	-	-	Active

1 - 11 of 11

Treatment Processes

Facility Name	Facility ID	Treatment Process	Treatment Objective
TP001 - CL2	1356	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.

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