WELLTON, AZ · Yuma County

ANTELOPE WATER COMPANY Water System

Current status

No open violations on record as of July 4, 2026.

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): AZ0414001
System type: Community Water System
Population served: 163
Service connections: 65
Ownership: privately owned
Water source: surface water (rivers, lakes, or reservoirs)

Violation history

Monitoring and Reporting (DBP)
—
Total Haloacetic Acids (HAA5)
July 1, 2025 – September 30, 2025
Archived
Report Sample Result/Fail Monitor (RTCR)
—
Revised Total Coliform Rule
July 1, 2024 – August 20, 2024
Resolved
Monitoring and Reporting (DBP)
—
Chlorine
January 1, 2023 – March 31, 2023
Resolved
Monitoring, Turbidity (Enhanced SWTR)
—
Interim Enhanced Surface Water Treatment Rule
December 1, 2022 – December 31, 2022
Resolved
Monitoring of Treatment (SWTR-Filter)
—
Surface Water Treatment Rule
March 1, 2022 – March 31, 2022
Resolved
Monitoring and Reporting (DBP)
—
Chlorine
January 1, 2022 – March 31, 2022
Resolved
Monitoring and Reporting (DBP)
—
Chlorine
April 1, 2019 – June 30, 2019
Resolved
Monitoring, Source Water (LT2)
—
E. COLI
August 19, 2018 – September 19, 2018
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
November 1, 2013 – November 30, 2013
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
July 1, 2013 – July 31, 2013
Resolved
Monitoring and Reporting (DBP)
—
Chlorine
April 1, 2013 – June 30, 2013
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
April 1, 2013 – April 30, 2013
Resolved
Consumer Confidence Report Inadequate Reporting
—
Consumer Confidence Rule
October 1, 2010 – June 17, 2011
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
March 1, 2008 – March 31, 2008
Resolved
Monitoring, Regular
—
Chromium
May 31, 1991 – May 30, 1992
Archived
Monitoring, Regular
—
Mercury
May 31, 1991 – May 30, 1992
Archived
Monitoring, Regular
—
Fluoride
May 31, 1991 – May 30, 1992
Archived
Monitoring, Regular
—
Nitrate
May 31, 1991 – May 30, 1992
Archived
Monitoring, Regular
—
Arsenic
May 31, 1991 – May 30, 1992
Archived
Monitoring, Regular
—
Cadmium
May 31, 1991 – May 30, 1992
Archived
Monitoring, Regular
—
BHC-GAMMA
August 31, 1990 – August 30, 1993
Archived
Monitoring, Regular
—
Methoxychlor
August 31, 1990 – August 30, 1993
Archived
Monitoring, Regular
—
Toxaphene
August 31, 1990 – August 30, 1993
Archived
Monitoring, Regular
—
2,4,5-TP
August 31, 1990 – August 30, 1993
Archived
Monitoring, Regular
—
Endrin
August 31, 1990 – August 30, 1993
Archived
Monitoring, Regular
—
Cadmium
May 31, 1989 – May 30, 1990
Archived
Monitoring, Regular
—
Fluoride
May 31, 1989 – May 30, 1990
Archived
Monitoring, Regular
—
Nitrate
May 31, 1989 – May 30, 1990
Archived
Monitoring, Regular
—
Mercury
May 31, 1989 – May 30, 1990
Archived
Monitoring, Regular
—
Selenium
May 31, 1989 – May 30, 1990
Archived
Monitoring, Regular
—
Chromium
May 31, 1989 – May 30, 1990
Archived
Monitoring, Regular
—
Arsenic
May 31, 1989 – May 30, 1990
Archived
Monitoring, Regular
—
Barium
January 1, 1989 – March 31, 1989
Archived
Monitoring, Regular
—
Cadmium
January 1, 1989 – March 31, 1989
Archived
Monitoring, Regular
—
Chromium
January 1, 1989 – March 31, 1989
Archived
Monitoring, Regular
—
Fluoride
January 1, 1989 – March 31, 1989
Archived
Monitoring, Regular
—
Mercury
January 1, 1989 – March 31, 1989
Archived
Monitoring, Regular
—
Nitrate
January 1, 1989 – March 31, 1989
Archived
Monitoring, Regular
—
Selenium
January 1, 1989 – March 31, 1989
Archived
Monitoring, Regular
—
Arsenic
February 4, 1988 – February 2, 1989
Archived
Monitoring, Regular
—
Toxaphene
September 1, 1987 – August 30, 1990
Archived
Monitoring, Regular
—
2,4,5-TP
September 1, 1987 – August 30, 1990
Archived
Monitoring, Regular
—
Methoxychlor
September 1, 1987 – August 30, 1990
Archived
Monitoring, Regular
—
Endrin
September 1, 1987 – August 30, 1990
Archived
Monitoring, Regular
—
2,4-D
September 1, 1987 – August 30, 1990
Archived
Monitoring, Regular
—
Ethylbenzene
January 1, 1987 – January 1, 1992
Archived
Monitoring, Regular
—
Toluene
January 1, 1987 – January 1, 1992
Archived
Monitoring, Regular
—
CHLOROBENZENE
January 1, 1987 – January 1, 1992
Archived
Monitoring, Regular
—
Tetrachloroethylene
January 1, 1987 – January 1, 1992
Archived
Monitoring, Regular
—
Trichloroethylene
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
—
Selenium
June 25, 1984 – June 24, 1985
Archived
Monitoring, Regular
—
Fluoride
June 25, 1984 – June 24, 1985
Archived
Monitoring, Regular
—
Mercury
June 25, 1984 – June 24, 1985
Archived
Monitoring, Regular
—
Arsenic
June 25, 1984 – June 24, 1985
Archived
Monitoring, Regular
—
Barium
June 25, 1984 – June 24, 1985
Archived
Monitoring, Regular
—
Cadmium
June 25, 1984 – June 24, 1985
Archived
Monitoring, Regular
—
Nitrate
June 25, 1984 – June 24, 1985
Archived
Monitoring, Regular
—
Arsenic
June 25, 1982 – June 24, 1983
Archived
Monitoring, Regular
—
Mercury
June 25, 1982 – June 24, 1983
Archived
Monitoring, Regular
—
Cadmium
June 25, 1982 – June 24, 1983
Archived
Monitoring, Regular
—
Barium
June 25, 1982 – June 24, 1983
Archived
Monitoring, Regular
—
Nitrate
June 25, 1982 – June 24, 1983
Archived
Monitoring, Regular
—
Selenium
June 25, 1981 – June 24, 1982
Archived
Monitoring, Regular
—
Fluoride
June 25, 1981 – June 24, 1982
Archived
Monitoring, Regular
—
Barium
June 25, 1981 – June 24, 1982
Archived
Monitoring, Regular
—
Arsenic
June 25, 1981 – June 24, 1982
Archived
Monitoring, Regular
—
Gross Alpha, Excl. Radon and U
July 1, 1980 – June 30, 1984
Archived
Monitoring, Check/Repeat/Confirmation
—
Arsenic
June 24, 1980 – July 23, 1980
Archived
Monitoring, Check/Repeat/Confirmation
—
Fluoride
June 24, 1980 – July 23, 1980
Archived
Monitoring, Check/Repeat/Confirmation
—
Mercury
June 24, 1980 – July 23, 1980
Archived

Archived closed in EPA's records (typically due to age or a data correction)Resolved addressed and confirmed by the state

Period	Violation	Contaminant / rule	Health-based	Status
July 1, 2025 – September 30, 2025	Monitoring and Reporting (DBP)	Total Haloacetic Acids (HAA5)	—	Archived
July 1, 2024 – August 20, 2024	Report Sample Result/Fail Monitor (RTCR)	Revised Total Coliform Rule	—	Resolved
January 1, 2023 – March 31, 2023	Monitoring and Reporting (DBP)	Chlorine	—	Resolved
December 1, 2022 – December 31, 2022	Monitoring, Turbidity (Enhanced SWTR)	Interim Enhanced Surface Water Treatment Rule	—	Resolved
March 1, 2022 – March 31, 2022	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	—	Resolved
January 1, 2022 – March 31, 2022	Monitoring and Reporting (DBP)	Chlorine	—	Resolved
April 1, 2019 – June 30, 2019	Monitoring and Reporting (DBP)	Chlorine	—	Resolved
August 19, 2018 – September 19, 2018	Monitoring, Source Water (LT2)	E. COLI	—	Resolved
November 1, 2013 – November 30, 2013	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
July 1, 2013 – July 31, 2013	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
April 1, 2013 – June 30, 2013	Monitoring and Reporting (DBP)	Chlorine	—	Resolved
April 1, 2013 – April 30, 2013	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
October 1, 2010 – June 17, 2011	Consumer Confidence Report Inadequate Reporting	Consumer Confidence Rule	—	Resolved
March 1, 2008 – March 31, 2008	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
May 31, 1991 – May 30, 1992	Monitoring, Regular	Chromium	—	Archived
May 31, 1991 – May 30, 1992	Monitoring, Regular	Mercury	—	Archived
May 31, 1991 – May 30, 1992	Monitoring, Regular	Fluoride	—	Archived
May 31, 1991 – May 30, 1992	Monitoring, Regular	Nitrate	—	Archived
May 31, 1991 – May 30, 1992	Monitoring, Regular	Arsenic	—	Archived
May 31, 1991 – May 30, 1992	Monitoring, Regular	Cadmium	—	Archived
August 31, 1990 – August 30, 1993	Monitoring, Regular	BHC-GAMMA	—	Archived
August 31, 1990 – August 30, 1993	Monitoring, Regular	Methoxychlor	—	Archived
August 31, 1990 – August 30, 1993	Monitoring, Regular	Toxaphene	—	Archived
August 31, 1990 – August 30, 1993	Monitoring, Regular	2,4,5-TP	—	Archived
August 31, 1990 – August 30, 1993	Monitoring, Regular	Endrin	—	Archived
May 31, 1989 – May 30, 1990	Monitoring, Regular	Cadmium	—	Archived
May 31, 1989 – May 30, 1990	Monitoring, Regular	Fluoride	—	Archived
May 31, 1989 – May 30, 1990	Monitoring, Regular	Nitrate	—	Archived
May 31, 1989 – May 30, 1990	Monitoring, Regular	Mercury	—	Archived
May 31, 1989 – May 30, 1990	Monitoring, Regular	Selenium	—	Archived
May 31, 1989 – May 30, 1990	Monitoring, Regular	Chromium	—	Archived
May 31, 1989 – May 30, 1990	Monitoring, Regular	Arsenic	—	Archived
January 1, 1989 – March 31, 1989	Monitoring, Regular	Barium	—	Archived
January 1, 1989 – March 31, 1989	Monitoring, Regular	Cadmium	—	Archived
January 1, 1989 – March 31, 1989	Monitoring, Regular	Chromium	—	Archived
January 1, 1989 – March 31, 1989	Monitoring, Regular	Fluoride	—	Archived
January 1, 1989 – March 31, 1989	Monitoring, Regular	Mercury	—	Archived
January 1, 1989 – March 31, 1989	Monitoring, Regular	Nitrate	—	Archived
January 1, 1989 – March 31, 1989	Monitoring, Regular	Selenium	—	Archived
February 4, 1988 – February 2, 1989	Monitoring, Regular	Arsenic	—	Archived
September 1, 1987 – August 30, 1990	Monitoring, Regular	Toxaphene	—	Archived
September 1, 1987 – August 30, 1990	Monitoring, Regular	2,4,5-TP	—	Archived
September 1, 1987 – August 30, 1990	Monitoring, Regular	Methoxychlor	—	Archived
September 1, 1987 – August 30, 1990	Monitoring, Regular	Endrin	—	Archived
September 1, 1987 – August 30, 1990	Monitoring, Regular	2,4-D	—	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	CHLOROBENZENE	—	Archived
January 1, 1987 – January 1, 1992	Monitoring, Regular	Tetrachloroethylene	—	Archived
January 1, 1987 – January 1, 1992	Monitoring, Regular	Trichloroethylene	—	Archived
January 1, 1987 – January 1, 1992	Monitoring, Regular	Carbon tetrachloride	—	Archived
January 1, 1987 – January 1, 1992	Monitoring, Regular	Styrene	—	Archived
June 25, 1984 – June 24, 1985	Monitoring, Regular	Selenium	—	Archived
June 25, 1984 – June 24, 1985	Monitoring, Regular	Fluoride	—	Archived
June 25, 1984 – June 24, 1985	Monitoring, Regular	Mercury	—	Archived
June 25, 1984 – June 24, 1985	Monitoring, Regular	Arsenic	—	Archived
June 25, 1984 – June 24, 1985	Monitoring, Regular	Barium	—	Archived
June 25, 1984 – June 24, 1985	Monitoring, Regular	Cadmium	—	Archived
June 25, 1984 – June 24, 1985	Monitoring, Regular	Nitrate	—	Archived
June 25, 1982 – June 24, 1983	Monitoring, Regular	Arsenic	—	Archived
June 25, 1982 – June 24, 1983	Monitoring, Regular	Mercury	—	Archived
June 25, 1982 – June 24, 1983	Monitoring, Regular	Cadmium	—	Archived
June 25, 1982 – June 24, 1983	Monitoring, Regular	Barium	—	Archived
June 25, 1982 – June 24, 1983	Monitoring, Regular	Nitrate	—	Archived
June 25, 1981 – June 24, 1982	Monitoring, Regular	Selenium	—	Archived
June 25, 1981 – June 24, 1982	Monitoring, Regular	Fluoride	—	Archived
June 25, 1981 – June 24, 1982	Monitoring, Regular	Barium	—	Archived
June 25, 1981 – June 24, 1982	Monitoring, Regular	Arsenic	—	Archived
July 1, 1980 – June 30, 1984	Monitoring, Regular	Gross Alpha, Excl. Radon and U	—	Archived
June 24, 1980 – July 23, 1980	Monitoring, Check/Repeat/Confirmation	Arsenic	—	Archived
June 24, 1980 – July 23, 1980	Monitoring, Check/Repeat/Confirmation	Fluoride	—	Archived
June 24, 1980 – July 23, 1980	Monitoring, Check/Repeat/Confirmation	Mercury	—	Archived

Archived closed in EPA's records (typically due to age or a data correction)Resolved addressed and confirmed by the state

Enforcement actions

October 30, 2023State Violation/Reminder Notice17 linked violations
September 24, 1980State Othergeneral compliance action — not tied to a specific violation on record

Contact

BERNER, DOROTHY

928-920-8645

WELLTON, AZ 85356