Is EPCOR - WILLOW VALLEY/KING STREET required to publish a Consumer Confidence Report?

Yes. EPCOR - WILLOW VALLEY/KING STREET 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 EPCOR - WILLOW VALLEY/KING STREET’s next Consumer Confidence Report due?

EPCOR - WILLOW VALLEY/KING STREET’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.

EL MIRAGE, AZ · Mohave County

EPCOR - WILLOW VALLEY/KING STREET Water System

Consumer Confidence Report status

EPCOR - WILLOW VALLEY/KING STREET 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 EPCOR - WILLOW VALLEY/KING STREET.

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): AZ0408040
System type: Community Water System
Population served: 3,408
Service connections: 1,421
Ownership: privately owned
Water source: groundwater (wells)

EPCOR - WILLOW VALLEY/KING STREET is one of 84 community water systems in Arizona in the 3,301 to 10,000 people size category, serving 3,408 people from groundwater.

As of August 1, 2026, its federal record holds 10 entries between 1988 and 2021, all of which EPA lists as closed. Nothing has been added since 2021.

Of the 10, 9 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, the Stage 2 Disinfectants and Disinfection Byproducts Rule, and the Consumer Confidence Rule.

Violation history

Monitoring and Reporting (DBP)
—
TTHM
October 1, 2021 – December 31, 2021
Resolved
Consumer Confidence Report Complete Failure to Report
—
Consumer Confidence Rule
July 1, 2015 – July 24, 2015
Resolved
Monitoring, Regular
—
Selenium
January 31, 1988 – January 30, 1991
Archived
Monitoring, Regular
—
Cadmium
January 31, 1988 – January 30, 1991
Archived
Monitoring, Regular
—
Mercury
January 31, 1988 – January 30, 1991
Archived
Monitoring, Regular
—
Barium
January 31, 1988 – January 30, 1991
Archived
Monitoring, Regular
—
Arsenic
January 31, 1988 – January 30, 1991
Archived
Monitoring, Regular
—
Nitrate
January 31, 1988 – January 30, 1991
Archived
Monitoring, Regular
—
Fluoride
January 31, 1988 – January 30, 1991
Archived
Monitoring, Regular
—
Chromium
January 31, 1988 – January 30, 1991
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, 2021 – December 31, 2021	Monitoring and Reporting (DBP)	TTHM	—	Resolved
July 1, 2015 – July 24, 2015	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	—	Resolved
January 31, 1988 – January 30, 1991	Monitoring, Regular	Selenium	—	Archived
January 31, 1988 – January 30, 1991	Monitoring, Regular	Cadmium	—	Archived
January 31, 1988 – January 30, 1991	Monitoring, Regular	Mercury	—	Archived
January 31, 1988 – January 30, 1991	Monitoring, Regular	Barium	—	Archived
January 31, 1988 – January 30, 1991	Monitoring, Regular	Arsenic	—	Archived
January 31, 1988 – January 30, 1991	Monitoring, Regular	Nitrate	—	Archived
January 31, 1988 – January 30, 1991	Monitoring, Regular	Fluoride	—	Archived
January 31, 1988 – January 30, 1991	Monitoring, Regular	Chromium	—	Archived

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

Enforcement actions

January 30, 1980State Civil Case filed in State courtgeneral compliance action — not tied to a specific violation on record

Common questions

Is EPCOR - WILLOW VALLEY/KING STREET required to publish a Consumer Confidence Report?: Yes. EPCOR - WILLOW VALLEY/KING STREET 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 EPCOR - WILLOW VALLEY/KING STREET’s next Consumer Confidence Report due?: EPCOR - WILLOW VALLEY/KING STREET’s next Consumer Confidence Report is due by July 1, 2027. The report covers calendar year 2026.
Does EPCOR - WILLOW VALLEY/KING STREET have any open drinking water violations on record?: As of August 1, 2026, EPA's federal records show no open violations for EPCOR - WILLOW VALLEY/KING STREET.
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

DIDOMIZIO, TOM

623-445-2431

EL MIRAGE, AZ 85335