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 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)
- AZ0407104
- System type
- Community Water System
- Population served
- 1,300
- Service connections
- 700
- Ownership
- federal government
- Water source
- groundwater (wells)
USAF-WILLIAMS is one of 272 community water systems in Arizona in the 501 to 3,300 people size category, formerly serving 1,300 people from groundwater.
EPA's federal records list this system as inactive in 1999; the record below is historical.
As of August 1, 2026, its federal record holds 9 entries between 1986 and 1989, all of which EPA lists as closed. Nothing has been added since 1989.
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 Radionuclides and Revised Rad Rule.
Violation history
Monitoring, Regular
—Nitrate
August 31, 1989 – August 30, 1992
ArchivedMonitoring, Regular
—Selenium
August 31, 1989 – August 30, 1992
ArchivedMonitoring, Regular
—Mercury
August 31, 1989 – August 30, 1992
ArchivedMonitoring, Regular
—Fluoride
August 31, 1989 – August 30, 1992
ArchivedMonitoring, Regular
—Chromium
August 31, 1989 – August 30, 1992
ArchivedMonitoring, Regular
—Cadmium
August 31, 1989 – August 30, 1992
ArchivedMonitoring, Regular
—Arsenic
August 31, 1989 – August 30, 1992
ArchivedMonitoring, Regular
—Barium
August 31, 1989 – August 30, 1992
ArchivedMonitoring, 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)
| Period | Violation | Contaminant / rule | Health-based | Status |
|---|---|---|---|---|
| August 31, 1989 – August 30, 1992 | Monitoring, Regular | Nitrate | — | Archived |
| August 31, 1989 – August 30, 1992 | Monitoring, Regular | Selenium | — | Archived |
| August 31, 1989 – August 30, 1992 | Monitoring, Regular | Mercury | — | Archived |
| August 31, 1989 – August 30, 1992 | Monitoring, Regular | Fluoride | — | Archived |
| August 31, 1989 – August 30, 1992 | Monitoring, Regular | Chromium | — | Archived |
| August 31, 1989 – August 30, 1992 | Monitoring, Regular | Cadmium | — | Archived |
| August 31, 1989 – August 30, 1992 | Monitoring, Regular | Arsenic | — | Archived |
| August 31, 1989 – August 30, 1992 | Monitoring, Regular | Barium | — | Archived |
| October 15, 1986 – October 14, 1990 | Monitoring, Regular | Gross Alpha, Excl. Radon and U | — | 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