Drinking Water Compliance OS

AUSTIN, AZ · Maricopa County

USAF-WILLIAMS Water System

Inactive system

This water system is marked inactive in EPA’s federal records as of November 1, 1999. It is no longer an operating public water system under this PWSID, and no compliance deadlines — including the 2027 Consumer Confidence Report rule — apply to it.

If you are a resident looking for your current water provider, see water systems in Maricopa County, AZ.

Data sourced from the EPA ECHO database (SDWA bulk download), last refreshed July 4, 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)
AZ0407104
System type
Community Water System
Population served
1,300
Service connections
700
Ownership
federal government
Water source
groundwater (wells)

Violation history

  • Monitoring, Regular

    Nitrate

    August 31, 1989 – August 30, 1992

    Archived
  • Monitoring, Regular

    Selenium

    August 31, 1989 – August 30, 1992

    Archived
  • Monitoring, Regular

    Mercury

    August 31, 1989 – August 30, 1992

    Archived
  • Monitoring, Regular

    Fluoride

    August 31, 1989 – August 30, 1992

    Archived
  • Monitoring, Regular

    Chromium

    August 31, 1989 – August 30, 1992

    Archived
  • Monitoring, Regular

    Cadmium

    August 31, 1989 – August 30, 1992

    Archived
  • Monitoring, Regular

    Arsenic

    August 31, 1989 – August 30, 1992

    Archived
  • Monitoring, Regular

    Barium

    August 31, 1989 – August 30, 1992

    Archived
  • Monitoring, Regular

    Gross Alpha, Excl. Radon and U

    October 15, 1986 – October 14, 1990

    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.

Last known contact on file (system is inactive)

Not on record

Phone not on record

AUSTIN, TX 78719