GW OCOTILLO WATER - CATALINA
Arizona — Community Water System — PWSID: AZ0410171
System Information
| PWSID | AZ0410171 |
| System Name | GW OCOTILLO WATER - CATALINA |
| System Type | Community Water System |
| Water Source | Ground Water |
| Activity Status | Active |
| Owner Type | Local |
| EPA Region | 09 |
| Serves School | No |
| Wholesaler | No |
| First Reported | Oct 5, 1979 |
| Last Reported | Nov 17, 2025 |
Location & Contact
| State | Arizona |
| City | MARICOPA |
| ZIP Code | 85138 |
| Address | — |
| Organization | ARMIJO, SUSAN |
| Phone | 480-328-9281 |
Population & Service
| Population Served | 1,168 |
| Service Connections | 417 |
Drinking Water Violations (22)
This water system has 22 violations recorded in the EPA SDWIS database.
| Begin Date | End Date | Contaminant | Category | Health-Based | Major | Measured | Federal MCL | State MCL | Status | Return to Compliance | Rule |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Jul 1, 2008 | — | Consumer Confidence Rule | Other | No | No | — | — | — | Resolved | Jul 10, 2008 | Consumer Confidence Rule |
| Oct 1, 2006 | — | Lead and Copper Rule | MR | No | No | — | TT | — | Resolved | Apr 7, 2008 | Lead and Copper Rule |
| Jul 1, 2006 | — | Consumer Confidence Rule | Other | No | No | — | — | — | Resolved | Jul 13, 2006 | Consumer Confidence Rule |
| Feb 1, 2006 | Feb 28, 2006 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Resolved | Feb 28, 2006 | Total Coliform Rule |
| Jan 1, 2006 | Dec 31, 2006 | Total Haloacetic Acids (HAA5) | MR | No | Yes | — | 0.060 mg/L | — | Resolved | Dec 31, 2006 | Stage 1 Disinfectants and Disinfection Byproducts Rule |
| Jan 1, 2006 | Dec 31, 2006 | TTHM | MR | No | Yes | — | 0.080 mg/L | — | Resolved | Dec 31, 2006 | Stage 1 Disinfectants and Disinfection Byproducts Rule |
| Jul 1, 2005 | — | Consumer Confidence Rule | Other | No | No | — | — | — | Resolved | Dec 31, 2005 | Consumer Confidence Rule |
| Jan 1, 2005 | Dec 31, 2005 | TTHM | MR | No | Yes | — | 0.080 mg/L | — | Resolved | Dec 31, 2005 | Stage 1 Disinfectants and Disinfection Byproducts Rule |
| Jan 1, 2005 | Dec 31, 2005 | Total Haloacetic Acids (HAA5) | MR | No | Yes | — | 0.060 mg/L | — | Resolved | Dec 31, 2005 | Stage 1 Disinfectants and Disinfection Byproducts Rule |
| Jan 1, 2004 | Dec 31, 2004 | TTHM | MR | No | Yes | — | 0.080 mg/L | — | Resolved | Dec 31, 2004 | Stage 1 Disinfectants and Disinfection Byproducts Rule |
| Jan 1, 2004 | Dec 31, 2004 | Total Haloacetic Acids (HAA5) | MR | No | Yes | — | 0.060 mg/L | — | Resolved | Dec 31, 2004 | Stage 1 Disinfectants and Disinfection Byproducts Rule |
| Jul 1, 2003 | — | Consumer Confidence Rule | Other | No | No | — | — | — | Resolved | Jul 14, 2003 | Consumer Confidence Rule |
| Jan 1, 2001 | Dec 31, 2003 | CYANIDE | MR | No | Yes | — | 0.2 mg/L | — | Resolved | Dec 31, 2003 | Inorganic Chemicals |
| Jan 1, 1995 | Dec 31, 2003 | CYANIDE | MR | No | Yes | — | 0.2 mg/L | — | Resolved | Dec 31, 2003 | Inorganic Chemicals |
| Jul 1, 1988 | Sep 30, 1988 | Fluoride | MR | No | Yes | — | 4.0 mg/L | — | Archived | Sep 30, 1988 | Inorganic Chemicals |
| Jul 1, 1988 | Sep 30, 1988 | Barium | MR | No | Yes | — | 2 mg/L | — | Archived | Sep 30, 1988 | Inorganic Chemicals |
| Jul 1, 1988 | Sep 30, 1988 | Mercury | MR | No | Yes | — | 0.002 mg/L | — | Archived | Sep 30, 1988 | Inorganic Chemicals |
| Jul 1, 1988 | Sep 30, 1988 | Cadmium | MR | No | Yes | — | 0.005 mg/L | — | Archived | Sep 30, 1988 | Inorganic Chemicals |
| Jul 1, 1988 | Sep 30, 1988 | Chromium | MR | No | Yes | — | 0.1 mg/L | — | Archived | Sep 30, 1988 | Inorganic Chemicals |
| Jul 1, 1988 | Sep 30, 1988 | Nitrate | MR | No | Yes | — | 10 mg/L | — | Archived | Sep 30, 1988 | Nitrate Rule |
| Jul 1, 1988 | Sep 30, 1988 | Selenium | MR | No | Yes | — | 0.05 mg/L | — | Archived | Sep 30, 1988 | Inorganic Chemicals |
| Aug 10, 1985 | Aug 8, 1988 | Arsenic | MR | No | Yes | — | 0.010 mg/L | — | Archived | Aug 8, 1988 | Arsenic Rule |
About This Water System
Public water system data comes from the EPA Safe Drinking Water Information System (SDWIS). Systems with violations must notify customers. Contact your water utility for the latest annual water quality report.