Public Water Partners

MARICOPA, AZ · Pima County

GW OCOTILLO WATER - CATALINA Water System

Consumer Confidence Report status

GW OCOTILLO WATER - CATALINA 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 GW OCOTILLO WATER - CATALINA.

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)
AZ0410171
System type
Community Water System
Population served
1,168
Service connections
417
Ownership
local government
Water source
groundwater (wells)

GW OCOTILLO WATER - CATALINA is one of 272 community water systems in Arizona in the 501 to 3,300 people size category, serving 1,168 people from groundwater.

As of August 1, 2026, its federal record holds 9 entries between 1985 and 2006, all of which EPA lists as closed. Nothing has been added since 2006.

All 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 and the Stage 1 Disinfectants and Disinfection Byproducts Rule.

Violation history

  • Monitoring and Reporting (DBP)

    —

    Total Haloacetic Acids (HAA5)

    January 1, 2006 – December 31, 2006

    Resolved

  • Monitoring, Regular

    —

    Nitrate

    July 1, 1988 – September 30, 1988

    Archived

  • Monitoring, Regular

    —

    Barium

    July 1, 1988 – September 30, 1988

    Archived

  • Monitoring, Regular

    —

    Cadmium

    July 1, 1988 – September 30, 1988

    Archived

  • Monitoring, Regular

    —

    Chromium

    July 1, 1988 – September 30, 1988

    Archived

  • Monitoring, Regular

    —

    Fluoride

    July 1, 1988 – September 30, 1988

    Archived

  • Monitoring, Regular

    —

    Mercury

    July 1, 1988 – September 30, 1988

    Archived

  • Monitoring, Regular

    —

    Selenium

    July 1, 1988 – September 30, 1988

    Archived

  • Monitoring, Regular

    —

    Arsenic

    August 10, 1985 – August 8, 1988

    Archived

Resolved addressed and confirmed by the stateArchived 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 GW OCOTILLO WATER - CATALINA required to publish a Consumer Confidence Report?

Yes. GW OCOTILLO WATER - CATALINA 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 GW OCOTILLO WATER - CATALINA’s next Consumer Confidence Report due?

GW OCOTILLO WATER - CATALINA’s next Consumer Confidence Report is due by July 1, 2027. The report covers calendar year 2026.

Does GW OCOTILLO WATER - CATALINA have any open drinking water violations on record?

As of August 1, 2026, EPA's federal records show no open violations for GW OCOTILLO WATER - CATALINA.

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

ARMIJO, SUSAN

480-328-9281

MARICOPA, AZ 85138