Public Water Partners

TUCSON, AZ · Pima County

SUMMIT WATER COOP Water System

Consumer Confidence Report status

SUMMIT WATER COOP 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 SUMMIT WATER COOP.

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)
AZ0420595
System type
Community Water System
Population served
53
Service connections
21
Ownership
public/private mix
Water source
groundwater (wells)

SUMMIT WATER COOP is one of 1,189 community water systems in Arizona in the 500 or fewer people size category, serving 53 people from groundwater.

As of August 1, 2026, its federal record holds 42 entries between 1982 and 2018, all of which EPA lists as closed. Nothing has been added since 2018.

All 42 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 volatile organic chemicals, inorganic chemicals, and the Total Coliform Rules.

Violation history

  • Monitoring, Routine (RTCR)

    —

    Revised Total Coliform Rule

    August 1, 2018 – August 31, 2018

    Resolved

  • Monitoring, Routine Major (TCR)

    —

    Coliform (TCR)

    February 1, 2010 – February 28, 2010

    Resolved

  • Monitoring, Routine Major (TCR)

    —

    Coliform (TCR)

    November 1, 2009 – November 30, 2009

    Resolved

  • Monitoring, Routine Major (TCR)

    —

    Coliform (TCR)

    March 1, 2008 – March 31, 2008

    Resolved

  • Monitoring, Routine Major (TCR)

    —

    Coliform (TCR)

    July 1, 2007 – July 31, 2007

    Resolved

  • Monitoring, Regular

    —

    Heptachlor epoxide

    January 1, 1998 – December 31, 2000

    Resolved

  • Monitoring, Regular

    —

    Barium

    December 31, 1989 – December 30, 1992

    Archived

  • Monitoring, Regular

    —

    Nitrate

    December 31, 1989 – December 30, 1992

    Archived

  • Monitoring, Regular

    —

    Arsenic

    December 31, 1989 – December 30, 1992

    Archived

  • Monitoring, Regular

    —

    Selenium

    December 31, 1989 – December 30, 1992

    Archived

  • Monitoring, Regular

    —

    Mercury

    December 31, 1989 – December 30, 1992

    Archived

  • Monitoring, Regular

    —

    Fluoride

    December 31, 1989 – December 30, 1992

    Archived

  • Monitoring, Regular

    —

    Chromium

    December 31, 1989 – December 30, 1992

    Archived

  • Monitoring, Regular

    —

    Cadmium

    December 31, 1989 – December 30, 1992

    Archived

  • Monitoring, Regular

    —

    Gross Alpha, Excl. Radon and U

    February 18, 1987 – February 17, 1991

    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, Regular

    —

    1,1,1-Trichloroethane

    January 1, 1987 – January 1, 1992

    Archived

  • Monitoring, Regular

    —

    Carbon tetrachloride

    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

    —

    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

    —

    o-Dichlorobenzene

    January 1, 1987 – January 1, 1992

    Archived

  • Monitoring, Regular

    —

    DICHLOROMETHANE

    January 1, 1987 – January 1, 1992

    Archived

  • Monitoring, Regular

    —

    cis-1,2-Dichloroethylene

    January 1, 1987 – January 1, 1992

    Archived

  • Monitoring, Regular

    —

    Gross Alpha, Excl. Radon and U

    April 1, 1982 – March 31, 1983

    Archived

  • Monitoring, Regular

    —

    Arsenic

    February 1, 1982 – January 31, 1984

    Archived

  • Monitoring, Regular

    —

    Barium

    February 1, 1982 – January 31, 1984

    Archived

  • Monitoring, Regular

    —

    Cadmium

    February 1, 1982 – January 31, 1984

    Archived

  • Monitoring, Regular

    —

    Chromium

    February 1, 1982 – January 31, 1984

    Archived

  • Monitoring, Regular

    —

    Fluoride

    February 1, 1982 – January 31, 1984

    Archived

  • Monitoring, Regular

    —

    Mercury

    February 1, 1982 – January 31, 1984

    Archived

  • Monitoring, Regular

    —

    Nitrate

    February 1, 1982 – January 31, 1984

    Archived

  • Monitoring, Regular

    —

    Gross Alpha, Excl. Radon and U

    February 1, 1982 – December 31, 1988

    Archived

  • Monitoring, Regular

    —

    Selenium

    February 1, 1982 – January 31, 1984

    Archived

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

Enforcement actions

Common questions

Is SUMMIT WATER COOP required to publish a Consumer Confidence Report?

Yes. SUMMIT WATER COOP 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 SUMMIT WATER COOP’s next Consumer Confidence Report due?

SUMMIT WATER COOP’s next Consumer Confidence Report is due by July 1, 2027. The report covers calendar year 2026.

Does SUMMIT WATER COOP have any open drinking water violations on record?

As of August 1, 2026, EPA's federal records show no open violations for SUMMIT WATER COOP.

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

SUMMIT WATER COOP

520-409-2057

TUCSON, AZ 85756