Is TONTO HILLS DWID required to publish a Consumer Confidence Report?

Yes. TONTO HILLS DWID is a community water system, and federal rules (40 CFR 141 Subpart O) require every community water system to publish a Consumer Confidence Report each year.

When is TONTO HILLS DWID’s next Consumer Confidence Report due?

TONTO HILLS DWID’s next Consumer Confidence Report is due by July 1, 2027. The report covers calendar year 2026.

What is a Consumer Confidence Report?

A Consumer Confidence Report (CCR) is the annual drinking water quality report that community water systems must provide to the people they serve. It lists the contaminants detected in the system’s water during the year, where the water comes from, and how the results compare with federal limits. EPA’s revised CCR rule takes effect January 1, 2027, and the first reports in the new format are due July 1, 2027.

CAVE CREEK, AZ · Maricopa County

TONTO HILLS DWID Water System

Consumer Confidence Report status

TONTO HILLS DWID must publish a Consumer Confidence Report — the annual drinking water quality report covering calendar year 2026 — by July 1, 2027.

As of August 1, 2026, EPA's federal records show no open violations for TONTO HILLS DWID.

Data sourced from the EPA ECHO database (SDWA bulk download), last refreshed August 1, 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): AZ0407076
System type: Community Water System
Population served: 350
Service connections: 150
Ownership: privately owned
Water source: surface water (rivers, lakes, or reservoirs)

TONTO HILLS DWID is one of 1,189 community water systems in Arizona in the 500 or fewer people size category, serving 350 people from surface water.

As of August 1, 2026, its federal record holds 20 entries between 1978 and 2021, all of which EPA lists as closed. Nothing has been added since 2021.

Of the 20, 19 are monitoring and reporting requirements — the category that accounts for about four in five of all violations in EPA's national dataset — rather than findings about the water itself. The record involves inorganic chemicals, volatile organic chemicals, and the Stage 1 Disinfectants and Disinfection Byproducts Rule.

Violation history

Monitoring and Reporting (DBP)
—
Chlorine
July 1, 2021 – September 30, 2021
Resolved
Monitoring and Reporting (DBP)
—
Chlorine
October 1, 2006 – December 31, 2006
Resolved
Monitoring and Reporting (DBP)
—
Chlorine
January 1, 2006 – March 31, 2006
Resolved
Monitoring, Regular
—
Fluoride
July 1, 1989 – September 30, 1989
Archived
Monitoring, Regular
—
Nitrate
July 1, 1989 – September 30, 1989
Archived
Monitoring, Regular
—
Selenium
July 1, 1989 – September 30, 1989
Archived
Monitoring, Regular
—
Barium
July 1, 1989 – September 30, 1989
Archived
Monitoring, Regular
—
Cadmium
July 1, 1989 – September 30, 1989
Archived
Monitoring, Regular
—
Toluene
January 1, 1987 – January 1, 1992
Archived
Monitoring, Regular
—
Styrene
January 1, 1987 – January 1, 1992
Archived
Monitoring, Regular
—
trans-1,2-Dichloroethylene
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
—
1,2-Dichloropropane
January 1, 1987 – January 1, 1992
Archived
Monitoring, Regular
—
1,1,2-Trichloroethane
January 1, 1987 – January 1, 1992
Archived
Monitoring, Regular
—
Arsenic
August 31, 1986 – August 29, 1989
Archived
Maximum Contaminant Level Violation, Single Sample
Health-based
Fluoride
April 8, 1981 – June 7, 1981
Archived
Monitoring, Regular
—
Gross Alpha, Excl. Radon and U
July 1, 1979 – June 30, 1983
Archived
Monitoring, Regular
—
Barium
May 1, 1978 – April 30, 1980
Archived
Monitoring, Regular
—
Fluoride
May 1, 1978 – April 30, 1980
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, 2021 – September 30, 2021	Monitoring and Reporting (DBP)	Chlorine	—	Resolved
October 1, 2006 – December 31, 2006	Monitoring and Reporting (DBP)	Chlorine	—	Resolved
January 1, 2006 – March 31, 2006	Monitoring and Reporting (DBP)	Chlorine	—	Resolved
July 1, 1989 – September 30, 1989	Monitoring, Regular	Fluoride	—	Archived
July 1, 1989 – September 30, 1989	Monitoring, Regular	Nitrate	—	Archived
July 1, 1989 – September 30, 1989	Monitoring, Regular	Selenium	—	Archived
July 1, 1989 – September 30, 1989	Monitoring, Regular	Barium	—	Archived
July 1, 1989 – September 30, 1989	Monitoring, Regular	Cadmium	—	Archived
January 1, 1987 – January 1, 1992	Monitoring, Regular	Toluene	—	Archived
January 1, 1987 – January 1, 1992	Monitoring, Regular	Styrene	—	Archived
January 1, 1987 – January 1, 1992	Monitoring, Regular	trans-1,2-Dichloroethylene	—	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	1,2-Dichloropropane	—	Archived
January 1, 1987 – January 1, 1992	Monitoring, Regular	1,1,2-Trichloroethane	—	Archived
August 31, 1986 – August 29, 1989	Monitoring, Regular	Arsenic	—	Archived
April 8, 1981 – June 7, 1981	Maximum Contaminant Level Violation, Single Sample	Fluoride	Health-based	Archived
July 1, 1979 – June 30, 1983	Monitoring, Regular	Gross Alpha, Excl. Radon and U	—	Archived
May 1, 1978 – April 30, 1980	Monitoring, Regular	Barium	—	Archived
May 1, 1978 – April 30, 1980	Monitoring, Regular	Fluoride	—	Archived

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

Enforcement actions

April 18, 2016State Compliance achieved134 linked violations
April 30, 1981State Consent Decree/Judgement1 linked violation
March 21, 1980State Other3 linked violations
February 16, 1979State Civil Case filed in State courtgeneral compliance action — not tied to a specific violation on record

Common questions

Is TONTO HILLS DWID required to publish a Consumer Confidence Report?: Yes. TONTO HILLS DWID is a community water system, and federal rules (40 CFR 141 Subpart O) require every community water system to publish a Consumer Confidence Report each year.
When is TONTO HILLS DWID’s next Consumer Confidence Report due?: TONTO HILLS DWID’s next Consumer Confidence Report is due by July 1, 2027. The report covers calendar year 2026.
Does TONTO HILLS DWID have any open drinking water violations on record?: As of August 1, 2026, EPA's federal records show no open violations for TONTO HILLS DWID.
What is a Consumer Confidence Report?: A Consumer Confidence Report (CCR) is the annual drinking water quality report that community water systems must provide to the people they serve. It lists the contaminants detected in the system’s water during the year, where the water comes from, and how the results compare with federal limits. EPA’s revised CCR rule takes effect January 1, 2027, and the first reports in the new format are due July 1, 2027.

Contact

TONTO HILLS DWID

480-595-0128

CAVE CREEK, AZ 85331