WELLTON, AZ · Yuma County

WELLTON TOWN OF Water System

Current status

1 item on record is open and awaiting resolution as of July 4, 2026. None are health-based violations — open items of this kind are most often monitoring or reporting requirements, not water-safety findings. Full details are in the violation history below.

This system's next federally required Consumer Confidence Report is due July 1, 2027, under the EPA's revised reporting rule.

Data sourced from the EPA ECHO database (SDWA bulk download), last refreshed July 4, 2026. This is a record-keeping and public-information tool — it does not replace Arizona’s official records. Always confirm current status with Arizona before making decisions based on this information.

System facts

System ID (PWSID): AZ0414022
System type: Community Water System
Population served: 3,000
Service connections: 1,573
Ownership: local government
Water source: surface water (rivers, lakes, or reservoirs)

Violation history

Failure Submit IDSE/Subpart V Plan Rpt
—
TTHM
December 30, 2025
Addressed
Public Notification Violation for NPDWR Violation
—
Public Notice
November 23, 2025 – September 24, 2025
Resolved
Monitoring, Regular
—
Gross Alpha, Excl. Radon and U
October 1, 2025 – December 31, 2025
Archived
Monitoring, Regular
—
Arsenic
October 1, 2025 – December 31, 2025
Archived
Treatment Technique Precursor Removal
Health-based
CARBON, TOTAL
October 1, 2025 – December 31, 2025
Archived
Monitoring and Reporting (DBP)
—
Total Haloacetic Acids (HAA5)
July 1, 2025 – September 30, 2025
Resolved
LSL Reporting
—
LEAD AND COPPER RULE REVISIONS
October 17, 2024 – March 11, 2025
Resolved
Maximum Contaminant Level Violation, Average
Health-based
TTHM
October 1, 2024 – December 31, 2024
Archived
Monthly Turbidity Exceed (Enhanced SWTR)
Health-based
Interim Enhanced Surface Water Treatment Rule
September 1, 2024 – September 30, 2024
Resolved
Monitoring, Turbidity (Enhanced SWTR)
—
Interim Enhanced Surface Water Treatment Rule
September 1, 2024 – September 30, 2024
Resolved
Monthly Turbidity Exceed (Enhanced SWTR)
Health-based
Interim Enhanced Surface Water Treatment Rule
July 1, 2024 – July 31, 2024
Resolved
Monthly Turbidity Exceed (Enhanced SWTR)
Health-based
Interim Enhanced Surface Water Treatment Rule
June 1, 2024 – June 30, 2024
Resolved
Public Notification Violation for NPDWR Violation
—
Public Notice
May 31, 2024 – July 10, 2024
Resolved
Monitoring, Turbidity (Enhanced SWTR)
—
Interim Enhanced Surface Water Treatment Rule
November 1, 2023 – November 30, 2023
Resolved
Report Sample Result/Fail Monitor (RTCR)
—
Revised Total Coliform Rule
November 1, 2023 – December 18, 2023
Resolved
Monitoring and Reporting (DBP)
—
CARBON, TOTAL
October 1, 2023 – December 31, 2023
Resolved
Maximum Contaminant Level Violation, Average
Health-based
TTHM
October 1, 2023 – December 31, 2023
Archived
Maximum Contaminant Level Violation, Average
Health-based
TTHM
July 1, 2023 – September 30, 2023
Archived
Monitoring of Treatment (SWTR-Filter)
—
Surface Water Treatment Rule
July 1, 2023 – July 31, 2023
Resolved
Monitoring, Turbidity (Enhanced SWTR)
—
Interim Enhanced Surface Water Treatment Rule
June 1, 2023 – June 30, 2023
Resolved
Monitoring of Treatment (SWTR-Filter)
—
Surface Water Treatment Rule
June 1, 2023 – June 30, 2023
Resolved
Monitoring, Turbidity (Enhanced SWTR)
—
Interim Enhanced Surface Water Treatment Rule
May 1, 2023 – May 31, 2023
Resolved
Maximum Contaminant Level Violation, Average
Health-based
TTHM
April 1, 2023 – June 30, 2023
Archived
Public Notification Violation for NPDWR Violation
—
Public Notice
May 29, 2022 – July 1, 2022
Resolved
Monitoring, Regular
—
Arsenic
April 1, 2022 – June 30, 2022
Resolved
Report Sample Result/Fail Monitor (RTCR)
—
Revised Total Coliform Rule
January 1, 2022 – February 25, 2022
Resolved
Monitoring, Routine (RTCR)
—
Revised Total Coliform Rule
November 1, 2019 – November 30, 2019
Resolved
Monitoring of Treatment (SWTR-Filter)
—
Surface Water Treatment Rule
November 1, 2019 – November 30, 2019
Resolved
Public Notification Violation for NPDWR Violation
—
Public Notice
May 1, 2019 – July 10, 2024
Resolved
Monitoring and Reporting (DBP)
—
CARBON, TOTAL
April 1, 2019 – June 30, 2019
Archived
Monitoring of Treatment (SWTR-Filter)
—
Surface Water Treatment Rule
March 1, 2019 – March 31, 2019
Resolved
Monitoring and Reporting (DBP)
—
CARBON, TOTAL
April 1, 2018 – June 30, 2018
Archived
Monitoring, Turbidity (Enhanced SWTR)
—
Interim Enhanced Surface Water Treatment Rule
February 1, 2018 – February 28, 2018
Resolved
Treatment Technique Precursor Removal
Health-based
CARBON, TOTAL
January 1, 2018 – March 31, 2018
Resolved
Monitoring, Source Water (LT2)
—
E. COLI
December 24, 2017 – January 24, 2018
Resolved
Consumer Confidence Report Inadequate Reporting
—
Consumer Confidence Rule
October 1, 2017 – December 6, 2017
Resolved
Monitoring and Reporting (DBP)
—
CARBON, TOTAL
July 1, 2017 – September 30, 2017
Archived
Report Sample Result/Fail Monitor (RTCR)
—
Revised Total Coliform Rule
May 1, 2017 – June 14, 2017
Resolved
Maximum Contaminant Level Violation, Average
Health-based
TTHM
October 1, 2016 – December 31, 2016
Archived
Monitoring, Routine (RTCR)
—
Revised Total Coliform Rule
September 1, 2016 – September 30, 2016
Resolved
Consumer Confidence Report Complete Failure to Report
—
Consumer Confidence Rule
July 1, 2015 – July 15, 2015
Resolved
Monitoring and Reporting (DBP)
—
Total Haloacetic Acids (HAA5)
April 1, 2013 – June 30, 2013
Resolved
Monitoring and Reporting (DBP)
—
Chlorine
April 1, 2010 – June 30, 2010
Resolved
Monitoring, Regular
—
Selenium
September 30, 1990 – September 29, 1991
Archived
Monitoring, Regular
—
Arsenic
September 30, 1990 – September 29, 1991
Archived
Monitoring, Regular
—
Barium
September 30, 1990 – September 29, 1991
Archived
Monitoring, Regular
—
Cadmium
September 30, 1990 – September 29, 1991
Archived
Monitoring, Regular
—
Chromium
September 30, 1990 – September 29, 1991
Archived
Monitoring, Regular
—
Fluoride
September 30, 1990 – September 29, 1991
Archived
Monitoring, Regular
—
Mercury
September 30, 1990 – September 29, 1991
Archived
Monitoring, Regular
—
Toxaphene
January 1, 1988 – March 31, 1988
Archived
Monitoring, Regular
—
Fluoride
July 1, 1987 – September 30, 1987
Archived
Monitoring, Regular
—
Chromium
July 1, 1987 – September 30, 1987
Archived
Monitoring, Regular
—
Mercury
July 1, 1987 – September 30, 1987
Archived
Monitoring, Regular
—
Selenium
July 1, 1987 – September 30, 1987
Archived
Monitoring, Regular
—
Nitrate
July 1, 1987 – September 30, 1987
Archived
Monitoring, Regular
—
CHLOROBENZENE
January 1, 1987 – January 1, 1992
Archived
Monitoring, Regular
—
Tetrachloroethylene
January 1, 1987 – January 1, 1992
Archived
Monitoring, Regular
—
1,1,1-Trichloroethane
January 1, 1987 – January 1, 1992
Archived
Monitoring, Regular
—
cis-1,2-Dichloroethylene
January 1, 1987 – January 1, 1992
Archived
Monitoring, Regular
—
1,2-Dichloroethane
January 1, 1987 – January 1, 1992
Archived
Monitoring, Regular
—
trans-1,2-Dichloroethylene
January 1, 1987 – January 1, 1992
Archived
Monitoring, Regular
—
DICHLOROMETHANE
January 1, 1987 – January 1, 1992
Archived
Monitoring, Regular
—
1,1,2-Trichloroethane
January 1, 1987 – January 1, 1992
Archived
Monitoring, Regular
—
Trichloroethylene
January 1, 1987 – January 1, 1992
Archived
Monitoring, Regular
—
1,2-Dichloropropane
January 1, 1987 – January 1, 1992
Archived
Monitoring, Regular
—
Carbon tetrachloride
January 1, 1987 – January 1, 1992
Archived
Monitoring, Regular
—
Styrene
January 1, 1987 – January 1, 1992
Archived
Monitoring, Regular
—
Ethylbenzene
January 1, 1987 – January 1, 1992
Archived
Monitoring, Regular
—
Toluene
January 1, 1987 – January 1, 1992
Archived
Monitoring, Regular
—
Benzene
January 1, 1987 – January 1, 1992
Archived
Monitoring, Regular
—
Arsenic
September 24, 1986 – September 23, 1987
Archived
Monitoring, Regular
—
Nitrate
June 25, 1983 – June 24, 1984
Archived
Monitoring, Regular
—
Selenium
June 25, 1983 – June 24, 1984
Archived
Monitoring, Regular
—
Chromium
June 25, 1983 – June 24, 1984
Archived
Monitoring, Regular
—
Arsenic
June 25, 1983 – June 24, 1984
Archived
Monitoring, Regular
—
Selenium
June 25, 1982 – June 24, 1983
Archived
Monitoring, Regular
—
Arsenic
June 25, 1982 – June 24, 1983
Archived
Monitoring, Regular
—
Cadmium
June 25, 1982 – June 24, 1983
Archived
Monitoring, Regular
—
Mercury
June 25, 1982 – June 24, 1983
Archived
Monitoring, Regular
—
Fluoride
June 25, 1982 – June 24, 1983
Archived
Monitoring, Regular
—
Chromium
June 25, 1982 – June 24, 1983
Archived
Monitoring, Regular
—
Fluoride
June 25, 1981 – June 24, 1982
Archived
Monitoring, Regular
—
Selenium
June 25, 1981 – June 24, 1982
Archived
Monitoring, Regular
—
Mercury
June 25, 1981 – June 24, 1982
Archived
Monitoring, Regular
—
Nitrate
June 25, 1981 – June 24, 1982
Archived
Monitoring, Regular
—
Cadmium
June 25, 1981 – June 24, 1982
Archived
Monitoring, Regular
—
Arsenic
June 25, 1981 – June 24, 1982
Archived
Monitoring, Regular
—
Endrin
June 24, 1981 – June 23, 1984
Archived
Monitoring, Regular
—
Toxaphene
June 24, 1981 – June 23, 1984
Archived
Monitoring, Regular
—
BHC-GAMMA
June 24, 1981 – June 23, 1984
Archived
Monitoring, Regular
—
2,4,5-TP
June 24, 1981 – June 23, 1984
Archived

Addressed corrective action reported, pending final confirmationResolved addressed and confirmed by the stateArchived closed in EPA's records (typically due to age or a data correction)

Period	Violation	Contaminant / rule	Health-based	Status
December 30, 2025	Failure Submit IDSE/Subpart V Plan Rpt	TTHM	—	Addressed
November 23, 2025 – September 24, 2025	Public Notification Violation for NPDWR Violation	Public Notice	—	Resolved
October 1, 2025 – December 31, 2025	Monitoring, Regular	Gross Alpha, Excl. Radon and U	—	Archived
October 1, 2025 – December 31, 2025	Monitoring, Regular	Arsenic	—	Archived
October 1, 2025 – December 31, 2025	Treatment Technique Precursor Removal	CARBON, TOTAL	Health-based	Archived
July 1, 2025 – September 30, 2025	Monitoring and Reporting (DBP)	Total Haloacetic Acids (HAA5)	—	Resolved
October 17, 2024 – March 11, 2025	LSL Reporting	LEAD AND COPPER RULE REVISIONS	—	Resolved
October 1, 2024 – December 31, 2024	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Archived
September 1, 2024 – September 30, 2024	Monthly Turbidity Exceed (Enhanced SWTR)	Interim Enhanced Surface Water Treatment Rule	Health-based	Resolved
September 1, 2024 – September 30, 2024	Monitoring, Turbidity (Enhanced SWTR)	Interim Enhanced Surface Water Treatment Rule	—	Resolved
July 1, 2024 – July 31, 2024	Monthly Turbidity Exceed (Enhanced SWTR)	Interim Enhanced Surface Water Treatment Rule	Health-based	Resolved
June 1, 2024 – June 30, 2024	Monthly Turbidity Exceed (Enhanced SWTR)	Interim Enhanced Surface Water Treatment Rule	Health-based	Resolved
May 31, 2024 – July 10, 2024	Public Notification Violation for NPDWR Violation	Public Notice	—	Resolved
November 1, 2023 – November 30, 2023	Monitoring, Turbidity (Enhanced SWTR)	Interim Enhanced Surface Water Treatment Rule	—	Resolved
November 1, 2023 – December 18, 2023	Report Sample Result/Fail Monitor (RTCR)	Revised Total Coliform Rule	—	Resolved
October 1, 2023 – December 31, 2023	Monitoring and Reporting (DBP)	CARBON, TOTAL	—	Resolved
October 1, 2023 – December 31, 2023	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Archived
July 1, 2023 – September 30, 2023	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Archived
July 1, 2023 – July 31, 2023	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	—	Resolved
June 1, 2023 – June 30, 2023	Monitoring, Turbidity (Enhanced SWTR)	Interim Enhanced Surface Water Treatment Rule	—	Resolved
June 1, 2023 – June 30, 2023	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	—	Resolved
May 1, 2023 – May 31, 2023	Monitoring, Turbidity (Enhanced SWTR)	Interim Enhanced Surface Water Treatment Rule	—	Resolved
April 1, 2023 – June 30, 2023	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Archived
May 29, 2022 – July 1, 2022	Public Notification Violation for NPDWR Violation	Public Notice	—	Resolved
April 1, 2022 – June 30, 2022	Monitoring, Regular	Arsenic	—	Resolved
January 1, 2022 – February 25, 2022	Report Sample Result/Fail Monitor (RTCR)	Revised Total Coliform Rule	—	Resolved
November 1, 2019 – November 30, 2019	Monitoring, Routine (RTCR)	Revised Total Coliform Rule	—	Resolved
November 1, 2019 – November 30, 2019	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	—	Resolved
May 1, 2019 – July 10, 2024	Public Notification Violation for NPDWR Violation	Public Notice	—	Resolved
April 1, 2019 – June 30, 2019	Monitoring and Reporting (DBP)	CARBON, TOTAL	—	Archived
March 1, 2019 – March 31, 2019	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	—	Resolved
April 1, 2018 – June 30, 2018	Monitoring and Reporting (DBP)	CARBON, TOTAL	—	Archived
February 1, 2018 – February 28, 2018	Monitoring, Turbidity (Enhanced SWTR)	Interim Enhanced Surface Water Treatment Rule	—	Resolved
January 1, 2018 – March 31, 2018	Treatment Technique Precursor Removal	CARBON, TOTAL	Health-based	Resolved
December 24, 2017 – January 24, 2018	Monitoring, Source Water (LT2)	E. COLI	—	Resolved
October 1, 2017 – December 6, 2017	Consumer Confidence Report Inadequate Reporting	Consumer Confidence Rule	—	Resolved
July 1, 2017 – September 30, 2017	Monitoring and Reporting (DBP)	CARBON, TOTAL	—	Archived
May 1, 2017 – June 14, 2017	Report Sample Result/Fail Monitor (RTCR)	Revised Total Coliform Rule	—	Resolved
October 1, 2016 – December 31, 2016	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Archived
September 1, 2016 – September 30, 2016	Monitoring, Routine (RTCR)	Revised Total Coliform Rule	—	Resolved
July 1, 2015 – July 15, 2015	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	—	Resolved
April 1, 2013 – June 30, 2013	Monitoring and Reporting (DBP)	Total Haloacetic Acids (HAA5)	—	Resolved
April 1, 2010 – June 30, 2010	Monitoring and Reporting (DBP)	Chlorine	—	Resolved
September 30, 1990 – September 29, 1991	Monitoring, Regular	Selenium	—	Archived
September 30, 1990 – September 29, 1991	Monitoring, Regular	Arsenic	—	Archived
September 30, 1990 – September 29, 1991	Monitoring, Regular	Barium	—	Archived
September 30, 1990 – September 29, 1991	Monitoring, Regular	Cadmium	—	Archived
September 30, 1990 – September 29, 1991	Monitoring, Regular	Chromium	—	Archived
September 30, 1990 – September 29, 1991	Monitoring, Regular	Fluoride	—	Archived
September 30, 1990 – September 29, 1991	Monitoring, Regular	Mercury	—	Archived
January 1, 1988 – March 31, 1988	Monitoring, Regular	Toxaphene	—	Archived
July 1, 1987 – September 30, 1987	Monitoring, Regular	Fluoride	—	Archived
July 1, 1987 – September 30, 1987	Monitoring, Regular	Chromium	—	Archived
July 1, 1987 – September 30, 1987	Monitoring, Regular	Mercury	—	Archived
July 1, 1987 – September 30, 1987	Monitoring, Regular	Selenium	—	Archived
July 1, 1987 – September 30, 1987	Monitoring, Regular	Nitrate	—	Archived
January 1, 1987 – January 1, 1992	Monitoring, Regular	CHLOROBENZENE	—	Archived
January 1, 1987 – January 1, 1992	Monitoring, Regular	Tetrachloroethylene	—	Archived
January 1, 1987 – January 1, 1992	Monitoring, Regular	1,1,1-Trichloroethane	—	Archived
January 1, 1987 – January 1, 1992	Monitoring, Regular	cis-1,2-Dichloroethylene	—	Archived
January 1, 1987 – January 1, 1992	Monitoring, Regular	1,2-Dichloroethane	—	Archived
January 1, 1987 – January 1, 1992	Monitoring, Regular	trans-1,2-Dichloroethylene	—	Archived
January 1, 1987 – January 1, 1992	Monitoring, Regular	DICHLOROMETHANE	—	Archived
January 1, 1987 – January 1, 1992	Monitoring, Regular	1,1,2-Trichloroethane	—	Archived
January 1, 1987 – January 1, 1992	Monitoring, Regular	Trichloroethylene	—	Archived
January 1, 1987 – January 1, 1992	Monitoring, Regular	1,2-Dichloropropane	—	Archived
January 1, 1987 – January 1, 1992	Monitoring, Regular	Carbon tetrachloride	—	Archived
January 1, 1987 – January 1, 1992	Monitoring, Regular	Styrene	—	Archived
January 1, 1987 – January 1, 1992	Monitoring, Regular	Ethylbenzene	—	Archived
January 1, 1987 – January 1, 1992	Monitoring, Regular	Toluene	—	Archived
January 1, 1987 – January 1, 1992	Monitoring, Regular	Benzene	—	Archived
September 24, 1986 – September 23, 1987	Monitoring, Regular	Arsenic	—	Archived
June 25, 1983 – June 24, 1984	Monitoring, Regular	Nitrate	—	Archived
June 25, 1983 – June 24, 1984	Monitoring, Regular	Selenium	—	Archived
June 25, 1983 – June 24, 1984	Monitoring, Regular	Chromium	—	Archived
June 25, 1983 – June 24, 1984	Monitoring, Regular	Arsenic	—	Archived
June 25, 1982 – June 24, 1983	Monitoring, Regular	Selenium	—	Archived
June 25, 1982 – June 24, 1983	Monitoring, Regular	Arsenic	—	Archived
June 25, 1982 – June 24, 1983	Monitoring, Regular	Cadmium	—	Archived
June 25, 1982 – June 24, 1983	Monitoring, Regular	Mercury	—	Archived
June 25, 1982 – June 24, 1983	Monitoring, Regular	Fluoride	—	Archived
June 25, 1982 – June 24, 1983	Monitoring, Regular	Chromium	—	Archived
June 25, 1981 – June 24, 1982	Monitoring, Regular	Fluoride	—	Archived
June 25, 1981 – June 24, 1982	Monitoring, Regular	Selenium	—	Archived
June 25, 1981 – June 24, 1982	Monitoring, Regular	Mercury	—	Archived
June 25, 1981 – June 24, 1982	Monitoring, Regular	Nitrate	—	Archived
June 25, 1981 – June 24, 1982	Monitoring, Regular	Cadmium	—	Archived
June 25, 1981 – June 24, 1982	Monitoring, Regular	Arsenic	—	Archived
June 24, 1981 – June 23, 1984	Monitoring, Regular	Endrin	—	Archived
June 24, 1981 – June 23, 1984	Monitoring, Regular	Toxaphene	—	Archived
June 24, 1981 – June 23, 1984	Monitoring, Regular	BHC-GAMMA	—	Archived
June 24, 1981 – June 23, 1984	Monitoring, Regular	2,4,5-TP	—	Archived

Addressed corrective action reported, pending final confirmationResolved addressed and confirmed by the stateArchived closed in EPA's records (typically due to age or a data correction)

Enforcement actions

October 6, 2025State Public Notification requested13 linked violations
July 10, 2025State Public Notification received22 linked violations
November 22, 2024State Public Notification received16 linked violations
October 10, 2024State Compliance achieved17 linked violations
October 8, 2024State Public Notification received56 linked violations
June 24, 2024State Public Notification received52 linked violations
March 5, 2024State Public Notification requested62 linked violations
June 22, 2023State Public Notification requested34 linked violations
February 24, 2023State Compliance achieved172 linked violations
May 19, 2022State Compliance achieved33 linked violations
December 3, 2014State Violation/Reminder Notice81 linked violations

Contact

MIRANDA, MARY

928-785-3348

WELLTON, AZ 85356