Public Water Partners

TUCSON, AZ · Pima County

CASITAS DE CASTILIAN Water System

Consumer Confidence Report status

CASITAS DE CASTILIAN 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 CASITAS DE CASTILIAN.

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)
AZ0420531
System type
Community Water System
Population served
167
Service connections
120
Ownership
public/private mix
Water source
groundwater (wells)

CASITAS DE CASTILIAN is one of 1,189 community water systems in Arizona in the 500 or fewer people size category, serving 167 people from groundwater.

As of August 1, 2026, its federal record holds 1 entry in 1980, all of which EPA lists as closed. Nothing has been added since 1980.

All 1 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 the Radionuclides and Revised Rad Rule.

Violation history

  • Monitoring, Regular

    —

    Gross Alpha, Excl. Radon and U

    July 1, 1980 – June 30, 1984

    Archived

Archived closed in EPA's records (typically due to age or a data correction)

Enforcement actions

No enforcement actions on record for this system.

Common questions

Is CASITAS DE CASTILIAN required to publish a Consumer Confidence Report?

Yes. CASITAS DE CASTILIAN 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 CASITAS DE CASTILIAN’s next Consumer Confidence Report due?

CASITAS DE CASTILIAN’s next Consumer Confidence Report is due by July 1, 2027. The report covers calendar year 2026.

Does CASITAS DE CASTILIAN have any open drinking water violations on record?

As of August 1, 2026, EPA's federal records show no open violations for CASITAS DE CASTILIAN.

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

ASSOCIA ARIZONA

520-742-5674

TUCSON, AZ 85704