Safe Drinking Water Information System (SDWIS) Federal Reporting Services

Your Drinking Water Query results from SDWIS Fed Reporting Services

PWS ID	AZ0412004
PWS Name	NOGALES CITY OF
PWS Type	Community water system
Owner Type	Local government
Primary Source	Ground water
Primacy Type	State
Is Wholesaler?	No
Population Served	22000
County Served	Santa Cruz

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, Regular	Arsenic Rule	Arsenic	35840	Known	01-OCT-2025	31-DEC-2025	No
MR	Monitoring, Regular	Nitrate Rule	Nitrate	35839	Known	01-JUL-2025	30-SEP-2025	No
MR	Monitoring, Regular	Arsenic Rule	Arsenic	35838	Known	01-JUL-2025	30-SEP-2025	No
MR	Monitoring and Reporting (DBP)	Stage 1 Disinfectants and Disinfection Byproducts Rule	Chlorine	35835	Known	01-JUL-2025	31-JUL-2025	No
Other	Public Notification Violation for NPDWR Violation	Public Notice Rule and Revised PN Rule	Public Notice	35830	Returned to Compliance	20-DEC-2024	-	No
TT	LSL Inventory	Lead and Copper Rule Revisions	LEAD AND COPPER RULE REVISIONS	35828	Open	17-OCT-2024	-	Yes
RPT	LSL Reporting	Lead and Copper Rule Revisions	LEAD AND COPPER RULE REVISIONS	35827	Open	17-OCT-2024	-	No
MR	Monitoring and Reporting (DBP)	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	35831	Returned to Compliance	01-OCT-2024	31-DEC-2024	No
MR	Monitoring, Regular	Arsenic Rule	Arsenic	35833	Returned to Compliance	01-OCT-2024	31-DEC-2024	No
MR	Monitoring and Reporting (DBP)	Stage 2 Disinfectants and Disinfection Byproducts Rule	Total Haloacetic Acids (HAA5)	35832	Returned to Compliance	01-OCT-2024	31-DEC-2024	No
Other	Public Notification Violation for NPDWR Violation	Public Notice Rule and Revised PN Rule	Public Notice	35826	Returned to Compliance	28-APR-2024	-	No
MR	Monitoring and Reporting (DBP)	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	35821	Returned to Compliance	01-OCT-2023	31-DEC-2023	No
MR	Monitoring, Regular	Arsenic Rule	Arsenic	35825	Returned to Compliance	01-OCT-2023	31-DEC-2023	No
MR	Monitoring and Reporting (DBP)	Stage 2 Disinfectants and Disinfection Byproducts Rule	Total Haloacetic Acids (HAA5)	35822	Returned to Compliance	01-OCT-2023	31-DEC-2023	No
RPT	Report Sample Result/Fail Monitor (RTCR)	Revised Total Coliform Rule	Revised Total Coliform Rule	35819	Returned to Compliance	01-JUL-2023	-	No
MR	Monitoring, Regular	Arsenic Rule	Arsenic	35820	Returned to Compliance	01-JUL-2023	30-SEP-2023	No
MR	Monitoring and Reporting (DBP)	Stage 1 Disinfectants and Disinfection Byproducts Rule	Chlorine	35816	Returned to Compliance	01-APR-2023	30-JUN-2023	No
MR	Monitoring, Regular	Arsenic Rule	Arsenic	35815	Returned to Compliance	01-JAN-2023	31-MAR-2023	No
MR	Monitoring, Regular	Nitrate Rule	Nitrate	35823	Returned to Compliance	01-JAN-2023	31-DEC-2023	No
MR	Monitoring, Regular	Nitrate Rule	Nitrate	35824	Returned to Compliance	01-JAN-2023	31-DEC-2023	No
TT	Failure To Address Deficiency	Ground Water Rule	Groundwater Rule	35829	Returned to Compliance	15-NOV-2021	-	Yes
Other	Public Notification Violation for NPDWR Violation	Public Notice Rule and Revised PN Rule	Public Notice	35630	Returned to Compliance	13-FEB-2020	-	No
RPT	Report Sample Result/Fail Monitor (RTCR)	Revised Total Coliform Rule	Revised Total Coliform Rule	35628	Returned to Compliance	01-JAN-2020	-	No
MR	Monitoring and Reporting (DBP)	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	35625	Returned to Compliance	01-AUG-2019	31-OCT-2019	No
MR	Monitoring and Reporting (DBP)	Stage 2 Disinfectants and Disinfection Byproducts Rule	Total Haloacetic Acids (HAA5)	35626	Returned to Compliance	01-AUG-2019	31-OCT-2019	No
MR	Monitoring, Regular	Arsenic Rule	Arsenic	35624	Returned to Compliance	01-APR-2019	30-JUN-2019	No
MR	Monitoring and Reporting (DBP)	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	35622	Returned to Compliance	01-AUG-2018	31-OCT-2018	No
MR	Monitoring and Reporting (DBP)	Stage 2 Disinfectants and Disinfection Byproducts Rule	Total Haloacetic Acids (HAA5)	35623	Returned to Compliance	01-AUG-2018	31-OCT-2018	No
MR	Monitoring, Regular	Arsenic Rule	Arsenic	35704	Returned to Compliance	01-JUL-2018	30-SEP-2018	No
Other	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	Consumer Confidence Rule	35618	Returned to Compliance	01-JUL-2018	-	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Methoxychlor	35707	Returned to Compliance	01-JAN-2018	31-DEC-2020	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Methoxychlor	35645	Returned to Compliance	01-JAN-2018	31-DEC-2020	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	BHC-GAMMA	35770	Returned to Compliance	01-JAN-2018	31-DEC-2020	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	BHC-GAMMA	35644	Returned to Compliance	01-JAN-2018	31-DEC-2020	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	BHC-GAMMA	35706	Returned to Compliance	01-JAN-2018	31-DEC-2020	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Endrin	35769	Returned to Compliance	01-JAN-2018	31-DEC-2020	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Endrin	35643	Returned to Compliance	01-JAN-2018	31-DEC-2020	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Endrin	35705	Returned to Compliance	01-JAN-2018	31-DEC-2020	No
MR	Monitoring, Regular	Inorganic Chemicals	Thallium, Total	35766	Returned to Compliance	01-JAN-2018	31-DEC-2020	No
MR	Monitoring, Regular	Inorganic Chemicals	Thallium, Total	35755	Returned to Compliance	01-JAN-2018	31-DEC-2020	No
MR	Monitoring, Regular	Inorganic Chemicals	Thallium, Total	35810	Returned to Compliance	01-JAN-2018	31-DEC-2020	No
MR	Monitoring, Regular	Inorganic Chemicals	Beryllium, Total	35745	Returned to Compliance	01-JAN-2018	31-DEC-2020	No
MR	Monitoring, Regular	Inorganic Chemicals	Beryllium, Total	35811	Returned to Compliance	01-JAN-2018	31-DEC-2020	No
MR	Monitoring, Regular	Inorganic Chemicals	Beryllium, Total	35806	Returned to Compliance	01-JAN-2018	31-DEC-2020	No
MR	Monitoring, Regular	Inorganic Chemicals	Antimony, Total	35809	Returned to Compliance	01-JAN-2018	31-DEC-2020	No
MR	Monitoring, Regular	Inorganic Chemicals	Antimony, Total	35680	Returned to Compliance	01-JAN-2018	31-DEC-2020	No
MR	Monitoring, Regular	Inorganic Chemicals	Antimony, Total	35754	Returned to Compliance	01-JAN-2018	31-DEC-2020	No
MR	Monitoring, Regular	Radionuclides and Revised Rad Rule	Radium-228	35639	Returned to Compliance	01-JAN-2018	31-DEC-2020	No
MR	Monitoring, Regular	Radionuclides and Revised Rad Rule	Radium-226	35638	Returned to Compliance	01-JAN-2018	31-DEC-2020	No
MR	Monitoring, Regular	Radionuclides and Revised Rad Rule	Combined Radium (-226 and -228)	35637	Returned to Compliance	01-JAN-2018	31-DEC-2020	No

1 - 50 of 1,229

Enforcement Actions

Latest Enforcement ID	Associated To Violation ID	Enforcement Action Type Code	Enforcement Action Description	Enforcement Date	Originator Description	Enforcement Comment
12216	35835	SIE	State Public Notification requested	24-OCT-2025	State	-
9999900000000000001	35827	EFL	Federal Final Administrative Order issued	17-OCT-2025	ODSWeb	Submitted by Kaleb Lee - ADMINISTRATIVE ORDER Docket No. PWS-AO-2026-004
9999900000000000001	35828	EFL	Federal Final Administrative Order issued	17-OCT-2025	ODSWeb	Submitted by Kaleb Lee - ADMINISTRATIVE ORDER Docket No. PWS-AO-2026-004
12214	35831	SIF	State Public Notification received	10-JUL-2025	State	-
12214	35832	SIF	State Public Notification received	10-JUL-2025	State	-
12209	35830	SOX	State Compliance achieved	06-FEB-2025	State	System submitted PN and certificate of distribution on 2/7/2025. LW8 2/7/2025
12208	35833	SOX	State Compliance achieved	27-JAN-2025	State	System submitted data late on 1/27/2025 LW8 1/28/2025.
12199	35829	SIF	State Public Notification received	03-JAN-2025	State	-
12187	35815	SIF	State Public Notification received	25-JUN-2024	State	-
12212	35821	SIF	State Public Notification received	25-JUN-2024	State	-
12212	35822	SIF	State Public Notification received	25-JUN-2024	State	-
12185	35823	SIF	State Public Notification received	25-JUN-2024	State	-
12184	35824	SIF	State Public Notification received	25-JUN-2024	State	-
12186	35826	SOX	State Compliance achieved	19-JUN-2024	State	System submitted on their 2023 CCR. LW8 6/25/2024
12183	35820	SOX	State Compliance achieved	08-MAY-2024	State	SYSTEM SUBMITTED CORRECT DATA ON 11/6/2023. LW8 5/8/2024
12180	35825	SOX	State Compliance achieved	05-MAR-2024	State	SYSTEM SUBMITTED DATA LATE REC'D 2/29/2024 LW8 5/8/2024
12162	35819	SOX	State Compliance achieved	18-AUG-2023	State	SYSTEM SUBMITTED MISSING RTCR017 ON 8/17/2023 LW8 8/18/2023
12151	35816	SIA	State Violation/Reminder Notice	13-JUL-2023	State	-
12146	35813	SOX	State Compliance achieved	21-DEC-2021	State	-
12142	35630	SOX	State Compliance achieved	23-FEB-2021	State	System submitted late PN on 2/23/2021 HML 2/24/2021
12117	35782	SIA	State Violation/Reminder Notice	08-FEB-2021	State	-
12117	35783	SIA	State Violation/Reminder Notice	08-FEB-2021	State	-
12117	35784	SIA	State Violation/Reminder Notice	08-FEB-2021	State	-
12117	35785	SIA	State Violation/Reminder Notice	08-FEB-2021	State	-
12117	35786	SIA	State Violation/Reminder Notice	08-FEB-2021	State	-
12117	35787	SIA	State Violation/Reminder Notice	08-FEB-2021	State	-
12117	35788	SIA	State Violation/Reminder Notice	08-FEB-2021	State	-
12117	35789	SIA	State Violation/Reminder Notice	08-FEB-2021	State	-
12117	35790	SIA	State Violation/Reminder Notice	08-FEB-2021	State	-
12117	35791	SIA	State Violation/Reminder Notice	08-FEB-2021	State	-
12117	35792	SIA	State Violation/Reminder Notice	08-FEB-2021	State	-
12117	35793	SIA	State Violation/Reminder Notice	08-FEB-2021	State	-
12117	35794	SIA	State Violation/Reminder Notice	08-FEB-2021	State	-
12117	35802	SIA	State Violation/Reminder Notice	08-FEB-2021	State	-
12117	35803	SIA	State Violation/Reminder Notice	08-FEB-2021	State	-
12117	35804	SIA	State Violation/Reminder Notice	08-FEB-2021	State	-
12119	35805	SIA	State Violation/Reminder Notice	08-FEB-2021	State	-
12121	35806	SIA	State Violation/Reminder Notice	08-FEB-2021	State	-
12125	35807	SIA	State Violation/Reminder Notice	08-FEB-2021	State	-
12127	35808	SIA	State Violation/Reminder Notice	08-FEB-2021	State	-
12129	35809	SIA	State Violation/Reminder Notice	08-FEB-2021	State	-
12136	35810	SIA	State Violation/Reminder Notice	08-FEB-2021	State	-
12131	35811	SIA	State Violation/Reminder Notice	08-FEB-2021	State	-
12134	35812	SIA	State Violation/Reminder Notice	08-FEB-2021	State	-
12077	35705	SIA	State Violation/Reminder Notice	08-FEB-2021	State	-
12077	35706	SIA	State Violation/Reminder Notice	08-FEB-2021	State	-
12077	35707	SIA	State Violation/Reminder Notice	08-FEB-2021	State	-
12077	35708	SIA	State Violation/Reminder Notice	08-FEB-2021	State	-
12077	35709	SIA	State Violation/Reminder Notice	08-FEB-2021	State	-
12077	35710	SIA	State Violation/Reminder Notice	08-FEB-2021	State	-

1 - 50 of 1,217

All Facilities

Facility Name	Facility ID	Is Source	Facility Type Description	Water Type Description	Availability Description	Facility Activity Status
WL-55-625343 - KINO SPRINGS 3	20005	Yes	Well	Ground water	Emergency	Active
XWL-55-603439 - PROTO PUMP	5247	Yes	Well	Ground water	Permanent	Inactive
XWL-55-508341 - MEADOW HILLS 4	2582	Yes	Well	Ground water	Permanent	Inactive
XWL-55-603395 - PROTO PUMP 2	2532	Yes	Well	Ground water	Permanent	Inactive
XWL-55-603436 - CITY HALL	2530	Yes	Well	Ground water	Permanent	Inactive
XWL-55-603396 - HOSPITAL	2529	Yes	Well	Ground water	Permanent	Inactive
XWL-55-625342 - KINO SPRINGS 5	20004	Yes	Well	Ground water	Permanent	Inactive
XWL-1291	17135	Yes	Well	Ground water	Permanent	Inactive
WL-55-589024 - CORONADO 6	8279	Yes	Well	Ground water	Permanent	Active
WL-55-625344 - SANTA CRUZ 4	7577	Yes	Well	Ground water	Permanent	Active
WL-55-619171 - MEADOWS HILLS 3	7565	Yes	Well	Ground water	Permanent	Active
WL-55-574907 - G2	5897	Yes	Well	Ground water	Permanent	Active
WL-55-603432 - MEADOW HILLS 2	5248	Yes	Well	Ground water	Permanent	Active
WL-55-603392 - SANTA CRUZ 3	5246	Yes	Well	Ground water	Permanent	Active
WL-55-603397 - MEADOW HILLS 1	5245	Yes	Well	Ground water	Permanent	Active
WL-55-603394 - SANTA CRUZ 1	2583	Yes	Well	Ground water	Permanent	Active
WL-55-603393 - SANTA CRUZ 2	2547	Yes	Well	Ground water	Permanent	Active
WL-55-574906 - G1	2531	Yes	Well	Ground water	Permanent	Active
DISTRIBUTION SYSTEM	12931	No	Distribution System/Zone	-	-	Active
EPDS002	10293	No	Sampling Station	-	-	Active
EPDS006	10297	No	Sampling Station	-	-	Active
EPDS001	295	No	Sampling Station	-	-	Active
XEPDS003	10294	No	Sampling Station	-	-	Inactive
XEPDS004	10295	No	Sampling Station	-	-	Inactive
XEPDS005	10296	No	Sampling Station	-	-	Inactive
XEPHIS	17806	No	Sampling Station	-	-	Inactive
XEPDS007	20002	No	Sampling Station	-	-	Inactive
XEPDS008	20711	No	Sampling Station	-	-	Inactive
STORAGE TANK 001 - 300,000	20620	No	Storage	-	-	Active
STORAGE TANK 002 - 1,200,000	20621	No	Storage	-	-	Active
STORAGE TANK 003 - 1,000,000	20622	No	Storage	-	-	Active
STORAGE TANK 004 - 1,000,000	20623	No	Storage	-	-	Active
STORAGE TANK 005 - 2,000,000	20624	No	Storage	-	-	Active
STORAGE TANK 006 - 1,000,000	20625	No	Storage	-	-	Active
STORAGE TANK 007 - 60,000	20626	No	Storage	-	-	Active
STORAGE TANK 008 (600,000 GALLONS)	26042	No	Storage	-	-	Active
TP002 - CL2, AS	16066	No	Treatment Plant	-	-	Active
TP005 - CL2, AS	16069	No	Treatment Plant	-	-	Active
TP006 - CL2, AS	16070	No	Treatment Plant	-	-	Active
TP001 - CL2	1770	No	Treatment Plant	-	-	Active
XTP003 - CL2	16067	No	Treatment Plant	-	-	Inactive
XTP004 - CL2	16068	No	Treatment Plant	-	-	Inactive
XTP007 - CL2	20003	No	Treatment Plant	-	-	Inactive
XTP008 - CL2	20712	No	Treatment Plant	-	-	Inactive

1 - 44 of 44

Treatment Processes

Facility Name	Facility ID	Treatment Process	Treatment Objective
TP002 - CL2, AS	16066	Chlorination (FRDS-1.5)	Disinfection
TP002 - CL2, AS	16066	Filtered	Inorganics removal
XTP003 - CL2	16067	Gaseous Chlorination, Post	Disinfection
XTP004 - CL2	16068	Gaseous Chlorination, Post	Disinfection
TP005 - CL2, AS	16069	Gaseous Chlorination, Post	Disinfection
TP005 - CL2, AS	16069	Filtered	Inorganics removal
TP006 - CL2, AS	16070	Gaseous Chlorination, Post	Disinfection
TP006 - CL2, AS	16070	Filtered	Inorganics removal
TP001 - CL2	1770	Gaseous Chlorination, Post	Disinfection
XTP007 - CL2	20003	Gaseous Chlorination, Post	Disinfection
XTP008 - CL2	20712	Hypochlorination, Post	Disinfection

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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