DUNCAN, AZ · Greenlee County

DUNCAN TOWN OF 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): AZ0406001
System type: Community Water System
Population served: 605
Service connections: 300
Ownership: local government
Water source: groundwater (wells)

Violation history

Monitoring, Regular
—
1,1,2-Trichloroethane
July 1, 2024 – September 30, 2024
Resolved
Monitoring and Reporting (DBP)
—
Chlorine
July 1, 2018 – September 30, 2018
Resolved
Monitoring and Reporting (DBP)
—
Total Haloacetic Acids (HAA5)
January 1, 2016 – September 30, 2018
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
June 1, 2014 – June 30, 2014
Resolved
Monitoring and Reporting (DBP)
—
Chlorine
January 1, 2013 – March 31, 2013
Resolved
Monitoring and Reporting (DBP)
—
Chlorine
April 1, 2012 – June 30, 2012
Resolved
Consumer Confidence Report Inadequate Reporting
—
Consumer Confidence Rule
October 1, 2010 – July 9, 2012
Resolved
Monitoring, Check/Repeat/Confirmation
—
Nitrate
January 31, 1990 – January 30, 1993
Archived
Monitoring, Regular
—
1,1,1-Trichloroethane
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
—
1,1,2-Trichloroethane
January 1, 1987 – January 1, 1992
Archived
Monitoring, Regular
—
Tetrachloroethylene
January 1, 1987 – January 1, 1992
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
—
Carbon tetrachloride
January 1, 1987 – January 1, 1992
Archived
Monitoring, Regular
—
cis-1,2-Dichloroethylene
January 1, 1987 – January 1, 1992
Archived
Monitoring, Regular
—
DICHLOROMETHANE
January 1, 1987 – January 1, 1992
Archived
Monitoring, Regular
—
o-Dichlorobenzene
January 1, 1987 – January 1, 1992
Archived
Monitoring, Regular
—
p-Dichlorobenzene
January 1, 1987 – January 1, 1992
Archived
Monitoring, Regular
—
1,1-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, Check/Repeat/Confirmation
—
Fluoride
June 24, 1979 – July 23, 1979
Archived
Monitoring, Check/Repeat/Confirmation
—
Fluoride
June 24, 1979 – July 23, 1979
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
July 1, 2024 – September 30, 2024	Monitoring, Regular	1,1,2-Trichloroethane	—	Resolved
July 1, 2018 – September 30, 2018	Monitoring and Reporting (DBP)	Chlorine	—	Resolved
January 1, 2016 – September 30, 2018	Monitoring and Reporting (DBP)	Total Haloacetic Acids (HAA5)	—	Resolved
June 1, 2014 – June 30, 2014	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
January 1, 2013 – March 31, 2013	Monitoring and Reporting (DBP)	Chlorine	—	Resolved
April 1, 2012 – June 30, 2012	Monitoring and Reporting (DBP)	Chlorine	—	Resolved
October 1, 2010 – July 9, 2012	Consumer Confidence Report Inadequate Reporting	Consumer Confidence Rule	—	Resolved
January 31, 1990 – January 30, 1993	Monitoring, Check/Repeat/Confirmation	Nitrate	—	Archived
January 1, 1987 – January 1, 1992	Monitoring, Regular	1,1,1-Trichloroethane	—	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	1,1,2-Trichloroethane	—	Archived
January 1, 1987 – January 1, 1992	Monitoring, Regular	Tetrachloroethylene	—	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	Carbon tetrachloride	—	Archived
January 1, 1987 – January 1, 1992	Monitoring, Regular	cis-1,2-Dichloroethylene	—	Archived
January 1, 1987 – January 1, 1992	Monitoring, Regular	DICHLOROMETHANE	—	Archived
January 1, 1987 – January 1, 1992	Monitoring, Regular	o-Dichlorobenzene	—	Archived
January 1, 1987 – January 1, 1992	Monitoring, Regular	p-Dichlorobenzene	—	Archived
January 1, 1987 – January 1, 1992	Monitoring, Regular	1,1-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
June 24, 1979 – July 23, 1979	Monitoring, Check/Repeat/Confirmation	Fluoride	—	Archived
June 24, 1979 – July 23, 1979	Monitoring, Check/Repeat/Confirmation	Fluoride	—	Archived

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

Enforcement actions

August 1, 2024State Public Notification requested206 linked violations
July 10, 2019State Violation/Reminder Notice156 linked violations
March 27, 2014State Violation/Reminder Notice132 linked violations
March 12, 2008State Compliance achieved302 linked violations
December 20, 1999State Compliance achieved173 linked violations
September 30, 1980State Othergeneral compliance action — not tied to a specific violation on record

Contact

DUNCAN TOWN OF

928-359-2791

DUNCAN, AZ 85534