CHANDLER, AZ · Maricopa County
CHANDLER-RE-DE NO 4 Water System
Inactive system
This water system is marked inactive in EPA’s federal records as of April 1, 1993. 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)
- AZ0407134
- System type
- Community Water System
- Population served
- 225
- Service connections
- 71
- Ownership
- local government
- Water source
- groundwater (wells)
CHANDLER-RE-DE NO 4 is one of 1,189 community water systems in Arizona in the 500 or fewer people size category, formerly serving 225 people from groundwater.
EPA's federal records list this system as inactive in 1993; the record below is historical.
As of August 1, 2026, its federal record holds 8 entries between 1980 and 1989, all of which EPA lists as closed. Nothing has been added since 1989.
All 8 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
—Selenium
July 31, 1989 – July 30, 1992
ArchivedMonitoring, Regular
—Nitrate
July 31, 1989 – July 30, 1992
ArchivedMonitoring, Regular
—Arsenic
July 31, 1989 – July 30, 1992
ArchivedMonitoring, Regular
—Barium
July 31, 1989 – July 30, 1992
ArchivedMonitoring, Regular
—Cadmium
July 31, 1989 – July 30, 1992
ArchivedMonitoring, Regular
—Fluoride
July 31, 1989 – July 30, 1992
ArchivedMonitoring, Regular
—Mercury
July 31, 1989 – July 30, 1992
ArchivedMonitoring, Regular
—Gross Alpha, Excl. Radon and U
July 1, 1980 – June 30, 1984
Archived
Archived closed in EPA's records (typically due to age or a data correction)
| Period | Violation | Contaminant / rule | Health-based | Status |
|---|---|---|---|---|
| July 31, 1989 – July 30, 1992 | Monitoring, Regular | Selenium | — | Archived |
| July 31, 1989 – July 30, 1992 | Monitoring, Regular | Nitrate | — | Archived |
| July 31, 1989 – July 30, 1992 | Monitoring, Regular | Arsenic | — | Archived |
| July 31, 1989 – July 30, 1992 | Monitoring, Regular | Barium | — | Archived |
| July 31, 1989 – July 30, 1992 | Monitoring, Regular | Cadmium | — | Archived |
| July 31, 1989 – July 30, 1992 | Monitoring, Regular | Fluoride | — | Archived |
| July 31, 1989 – July 30, 1992 | Monitoring, Regular | Mercury | — | Archived |
| July 1, 1980 – June 30, 1984 | 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
CHANDLER, AZ 85225