Public Water Partners

CHANDLER, AZ · Maricopa County

THIRD ESTATE CO-OP Water System

Inactive system

This water system is marked inactive in EPA’s federal records as of May 1, 1998. 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)
AZ0407449
System type
Community Water System
Population served
50
Service connections
11
Ownership
privately owned
Water source
groundwater (wells)

THIRD ESTATE CO-OP is one of 1,189 community water systems in Arizona in the 500 or fewer people size category, formerly serving 50 people from groundwater.

EPA's federal records list this system as inactive in 1998; the record below is historical.

As of August 1, 2026, its federal record holds 16 entries between 1987 and 1989, all of which EPA lists as closed. Nothing has been added since 1989.

All 16 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 and inorganic chemicals.

Violation history

  • Monitoring, Check/Repeat/Confirmation

    —

    Cadmium

    November 30, 1989 – November 29, 1992

    Archived

  • Monitoring, Check/Repeat/Confirmation

    —

    Nitrate

    November 30, 1989 – November 29, 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

    —

    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

    —

    cis-1,2-Dichloroethylene

    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

    —

    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

    —

    1,1,2-Trichloroethane

    January 1, 1987 – January 1, 1992

    Archived

  • Monitoring, Regular

    —

    DICHLOROMETHANE

    January 1, 1987 – January 1, 1992

    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 85248