MARICOPA, AZ · Pinal County

ANTELOPE PEAK DWID 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): AZ0411712
System type: Community Water System
Population served: 150
Service connections: 60
Ownership: public/private mix
Water source: groundwater (wells)

Violation history

Monitoring, Regular
—
Fluoride
October 1, 2016 – August 9, 2016
Resolved
Monitoring, Regular
—
Radium-228
April 1, 2016 – June 30, 2016
Resolved
Maximum Contaminant Level Violation, Single Sample
Health-based
Nitrate
January 1, 2015 – December 31, 2015
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Fluoride
April 1, 2014 – June 30, 2014
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Arsenic
January 1, 2011 – March 31, 2011
Resolved
Monitoring, Regular
—
cis-1,2-Dichloroethylene
January 1, 2011 – December 31, 2011
Resolved
Monitoring, Regular
—
Carbon tetrachloride
January 1, 2011 – December 31, 2011
Resolved
Monitoring, Regular
—
1,1,2-Trichloroethane
January 1, 2011 – December 31, 2011
Resolved
Monitoring, Regular
—
Styrene
January 1, 2011 – December 31, 2011
Resolved
Monitoring, Regular
—
Combined Radium (-226 and -228)
October 1, 2010 – December 31, 2010
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Fluoride
October 1, 2010 – December 31, 2010
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Arsenic
April 1, 2010 – June 30, 2010
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Fluoride
January 1, 2010 – March 31, 2010
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Arsenic
October 1, 2009 – December 31, 2009
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
October 1, 2008 – October 31, 2008
Resolved
Monitoring, Regular
—
DICHLOROMETHANE
January 1, 2007 – December 31, 2007
Resolved
Monitoring, Regular
—
Combined Uranium
January 1, 2004 – December 31, 2007
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
December 1, 1991 – December 31, 1991
Archived
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
November 1, 1991 – November 30, 1991
Archived
Maximum Contaminant Level Violation, Single Sample
Health-based
Gross Alpha, Excl. Radon and U
June 15, 1991 – June 14, 1995
Archived
Monitoring, Check/Repeat/Confirmation
—
Fluoride
June 30, 1990 – June 29, 1993
Archived
Monitoring, Regular
—
Chromium
June 30, 1987 – June 29, 1990
Archived
Monitoring, Regular
—
Selenium
June 30, 1987 – June 29, 1990
Archived
Monitoring, Regular
—
Barium
June 30, 1987 – June 29, 1990
Archived
Monitoring, Regular
—
Mercury
June 30, 1987 – June 29, 1990
Archived
Monitoring, Regular
—
Cadmium
June 30, 1987 – June 29, 1990
Archived
Monitoring, Regular
—
Fluoride
June 30, 1987 – June 29, 1990
Archived
Monitoring, Regular
—
Arsenic
June 30, 1987 – June 29, 1990
Archived
Monitoring, Regular
—
Nitrate
June 30, 1987 – June 29, 1990
Archived
Monitoring, Regular
—
Gross Alpha, Excl. Radon and U
June 15, 1987 – June 14, 1991
Archived
Monitoring, Regular
—
CHLOROBENZENE
January 1, 1987 – January 1, 1992
Archived
Monitoring, Regular
—
Benzene
January 1, 1987 – January 1, 1992
Archived
Monitoring, Regular
—
Toluene
January 1, 1987 – January 1, 1992
Archived
Monitoring, Regular
—
Ethylbenzene
January 1, 1987 – January 1, 1992
Archived
Monitoring, Regular
—
Styrene
January 1, 1987 – January 1, 1992
Archived
Monitoring, Regular
—
1,1-Dichloroethylene
January 1, 1987 – January 1, 1992
Archived
Monitoring, Regular
—
p-Dichlorobenzene
January 1, 1987 – January 1, 1992
Archived
Monitoring, Regular
—
o-Dichlorobenzene
January 1, 1987 – January 1, 1992
Archived
Monitoring, Regular
—
DICHLOROMETHANE
January 1, 1987 – January 1, 1992
Archived
Monitoring, Regular
—
cis-1,2-Dichloroethylene
January 1, 1987 – January 1, 1992
Archived
Monitoring, Regular
—
trans-1,2-Dichloroethylene
January 1, 1987 – January 1, 1992
Archived
Monitoring, Regular
—
1,2-Dichloroethane
January 1, 1987 – January 1, 1992
Archived
Monitoring, Regular
—
1,1,1-Trichloroethane
January 1, 1987 – January 1, 1992
Archived
Monitoring, Regular
—
Carbon tetrachloride
January 1, 1987 – January 1, 1992
Archived
Monitoring, Regular
—
1,2-Dichloropropane
January 1, 1987 – January 1, 1992
Archived
Monitoring, Regular
—
Trichloroethylene
January 1, 1987 – January 1, 1992
Archived
Monitoring, Regular
—
Tetrachloroethylene
January 1, 1987 – January 1, 1992
Archived
Monitoring, Regular
—
1,1,2-Trichloroethane
January 1, 1987 – January 1, 1992
Archived

Resolved 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
October 1, 2016 – August 9, 2016	Monitoring, Regular	Fluoride	—	Resolved
April 1, 2016 – June 30, 2016	Monitoring, Regular	Radium-228	—	Resolved
January 1, 2015 – December 31, 2015	Maximum Contaminant Level Violation, Single Sample	Nitrate	Health-based	Resolved
April 1, 2014 – June 30, 2014	Maximum Contaminant Level Violation, Average	Fluoride	Health-based	Resolved
January 1, 2011 – March 31, 2011	Maximum Contaminant Level Violation, Average	Arsenic	Health-based	Resolved
January 1, 2011 – December 31, 2011	Monitoring, Regular	cis-1,2-Dichloroethylene	—	Resolved
January 1, 2011 – December 31, 2011	Monitoring, Regular	Carbon tetrachloride	—	Resolved
January 1, 2011 – December 31, 2011	Monitoring, Regular	1,1,2-Trichloroethane	—	Resolved
January 1, 2011 – December 31, 2011	Monitoring, Regular	Styrene	—	Resolved
October 1, 2010 – December 31, 2010	Monitoring, Regular	Combined Radium (-226 and -228)	—	Resolved
October 1, 2010 – December 31, 2010	Maximum Contaminant Level Violation, Average	Fluoride	Health-based	Resolved
April 1, 2010 – June 30, 2010	Maximum Contaminant Level Violation, Average	Arsenic	Health-based	Resolved
January 1, 2010 – March 31, 2010	Maximum Contaminant Level Violation, Average	Fluoride	Health-based	Resolved
October 1, 2009 – December 31, 2009	Maximum Contaminant Level Violation, Average	Arsenic	Health-based	Resolved
October 1, 2008 – October 31, 2008	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
January 1, 2007 – December 31, 2007	Monitoring, Regular	DICHLOROMETHANE	—	Resolved
January 1, 2004 – December 31, 2007	Monitoring, Regular	Combined Uranium	—	Resolved
December 1, 1991 – December 31, 1991	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Archived
November 1, 1991 – November 30, 1991	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Archived
June 15, 1991 – June 14, 1995	Maximum Contaminant Level Violation, Single Sample	Gross Alpha, Excl. Radon and U	Health-based	Archived
June 30, 1990 – June 29, 1993	Monitoring, Check/Repeat/Confirmation	Fluoride	—	Archived
June 30, 1987 – June 29, 1990	Monitoring, Regular	Chromium	—	Archived
June 30, 1987 – June 29, 1990	Monitoring, Regular	Selenium	—	Archived
June 30, 1987 – June 29, 1990	Monitoring, Regular	Barium	—	Archived
June 30, 1987 – June 29, 1990	Monitoring, Regular	Mercury	—	Archived
June 30, 1987 – June 29, 1990	Monitoring, Regular	Cadmium	—	Archived
June 30, 1987 – June 29, 1990	Monitoring, Regular	Fluoride	—	Archived
June 30, 1987 – June 29, 1990	Monitoring, Regular	Arsenic	—	Archived
June 30, 1987 – June 29, 1990	Monitoring, Regular	Nitrate	—	Archived
June 15, 1987 – June 14, 1991	Monitoring, Regular	Gross Alpha, Excl. Radon and U	—	Archived
January 1, 1987 – January 1, 1992	Monitoring, Regular	CHLOROBENZENE	—	Archived
January 1, 1987 – January 1, 1992	Monitoring, Regular	Benzene	—	Archived
January 1, 1987 – January 1, 1992	Monitoring, Regular	Toluene	—	Archived
January 1, 1987 – January 1, 1992	Monitoring, Regular	Ethylbenzene	—	Archived
January 1, 1987 – January 1, 1992	Monitoring, Regular	Styrene	—	Archived
January 1, 1987 – January 1, 1992	Monitoring, Regular	1,1-Dichloroethylene	—	Archived
January 1, 1987 – January 1, 1992	Monitoring, Regular	p-Dichlorobenzene	—	Archived
January 1, 1987 – January 1, 1992	Monitoring, Regular	o-Dichlorobenzene	—	Archived
January 1, 1987 – January 1, 1992	Monitoring, Regular	DICHLOROMETHANE	—	Archived
January 1, 1987 – January 1, 1992	Monitoring, Regular	cis-1,2-Dichloroethylene	—	Archived
January 1, 1987 – January 1, 1992	Monitoring, Regular	trans-1,2-Dichloroethylene	—	Archived
January 1, 1987 – January 1, 1992	Monitoring, Regular	1,2-Dichloroethane	—	Archived
January 1, 1987 – January 1, 1992	Monitoring, Regular	1,1,1-Trichloroethane	—	Archived
January 1, 1987 – January 1, 1992	Monitoring, Regular	Carbon tetrachloride	—	Archived
January 1, 1987 – January 1, 1992	Monitoring, Regular	1,2-Dichloropropane	—	Archived
January 1, 1987 – January 1, 1992	Monitoring, Regular	Trichloroethylene	—	Archived
January 1, 1987 – January 1, 1992	Monitoring, Regular	Tetrachloroethylene	—	Archived
January 1, 1987 – January 1, 1992	Monitoring, Regular	1,1,2-Trichloroethane	—	Archived

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

Enforcement actions

September 8, 2023State Compliance achieved31 linked violations
August 9, 2016State Compliance achieved32 linked violations
May 8, 2015State Compliance achieved13 linked violations
May 23, 2013State Violation/Reminder Notice26 linked violations
August 12, 2011State Compliance achieved94 linked violations
January 9, 2011State Compliance achieved124 linked violations
October 29, 2010State Violation/Reminder Notice57 linked violations
July 28, 2009State Violation/Reminder Notice53 linked violations

Contact

CARROLL, SARA

520-705-4298

MARICOPA, AZ 85139