Public Water Partners

TUCSON, AZ · Santa Cruz County

SONOITA VALLEY (SOUTH) WATER COMPANY Water System

Consumer Confidence Report status

SONOITA VALLEY (SOUTH) WATER COMPANY 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 1 open health-based violation for SONOITA VALLEY (SOUTH) WATER COMPANY.

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)
AZ0412005
System type
Community Water System
Population served
169
Service connections
59
Ownership
privately owned
Water source
groundwater (wells)

SONOITA VALLEY (SOUTH) WATER COMPANY is one of 1,189 community water systems in Arizona in the 500 or fewer people size category, serving 169 people from groundwater.

As of August 1, 2026, its federal record holds 29 entries between 1985 and 2024, of which 1 health-based item remains open.

Of the 29, 28 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 Lead and Copper Rule.

Violation history

  • LSL Reporting

    —

    LEAD AND COPPER RULE REVISIONS

    October 17, 2024 – December 17, 2025

    Resolved

  • Treatment Technique, Level 1 Assessment (RTCR)

    Health-based

    Revised Total Coliform Rule

    July 7, 2019

    Unaddressed

  • Monitoring, Regular

    —

    Cadmium

    April 1, 1988 – June 30, 1988

    Archived

  • Monitoring, Regular

    —

    Chromium

    April 1, 1988 – June 30, 1988

    Archived

  • Monitoring, Regular

    —

    Fluoride

    April 1, 1988 – June 30, 1988

    Archived

  • Monitoring, Regular

    —

    Mercury

    April 1, 1988 – June 30, 1988

    Archived

  • Monitoring, Regular

    —

    Nitrate

    April 1, 1988 – June 30, 1988

    Archived

  • Monitoring, Regular

    —

    Gross Alpha, Excl. Radon and U

    April 1, 1988 – June 30, 1988

    Archived

  • Monitoring, Regular

    —

    Selenium

    April 1, 1988 – June 30, 1988

    Archived

  • Monitoring, Regular

    —

    Barium

    April 1, 1988 – June 30, 1988

    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

    —

    Tetrachloroethylene

    January 1, 1987 – January 1, 1992

    Archived

  • Monitoring, Regular

    —

    CHLOROBENZENE

    January 1, 1987 – January 1, 1992

    Archived

  • Monitoring, Regular

    —

    cis-1,2-Dichloroethylene

    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

    —

    Benzene

    January 1, 1987 – January 1, 1992

    Archived

  • Monitoring, Regular

    —

    DICHLOROMETHANE

    January 1, 1987 – January 1, 1992

    Archived

  • Monitoring, Regular

    —

    o-Dichlorobenzene

    January 1, 1987 – January 1, 1992

    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

    —

    Arsenic

    April 5, 1985 – April 3, 1988

    Archived

Resolved addressed and confirmed by the stateUnaddressed no corrective action on record yetArchived closed in EPA's records (typically due to age or a data correction)

Enforcement actions

Common questions

Is SONOITA VALLEY (SOUTH) WATER COMPANY required to publish a Consumer Confidence Report?

Yes. SONOITA VALLEY (SOUTH) WATER COMPANY 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 SONOITA VALLEY (SOUTH) WATER COMPANY’s next Consumer Confidence Report due?

SONOITA VALLEY (SOUTH) WATER COMPANY’s next Consumer Confidence Report is due by July 1, 2027. The report covers calendar year 2026.

Does SONOITA VALLEY (SOUTH) WATER COMPANY have any open drinking water violations on record?

As of August 1, 2026, EPA's federal records show 1 open health-based violation for SONOITA VALLEY (SOUTH) WATER COMPANY.

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

SONOITA VALLEY WATER COMPANY

520-624-1460

TUCSON, AZ 85754