GW OCOTILLO WATER - DIAMOND BELL
Arizona — Community Water System — PWSID: AZ0410159
System Information
| PWSID | AZ0410159 |
| System Name | GW OCOTILLO WATER - DIAMOND BELL |
| 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 | 706 |
| Service Connections | 252 |
Drinking Water Violations (26)
This water system has 26 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Oct 1, 2014 | — | Consumer Confidence Rule | Other | No | No | — | — | — | Resolved | Jun 29, 2015 | Consumer Confidence Rule |
| Oct 1, 2014 | — | Consumer Confidence Rule | Other | No | No | — | — | — | Resolved | Jun 29, 2015 | Consumer Confidence Rule |
| Jan 1, 2013 | Mar 31, 2013 | Chlorine | MR | No | Yes | — | 4.0 mg/L | — | Resolved | Mar 31, 2013 | Stage 1 Disinfectants and Disinfection Byproducts 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 10, 2006 | Consumer Confidence 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 | Jul 22, 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 |
| Oct 1, 2004 | Dec 31, 2004 | Chlorine | MR | No | Yes | — | 4.0 mg/L | — | Resolved | Dec 31, 2004 | Stage 1 Disinfectants and Disinfection Byproducts Rule |
| Feb 1, 2004 | Feb 29, 2004 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Resolved | Feb 29, 2004 | Total Coliform 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 |
| Jan 1, 2004 | Jan 31, 2004 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Resolved | Jan 31, 2004 | Total Coliform Rule |
| Jan 1, 2004 | Jan 31, 2004 | Coliform (TCR) | MCL | Yes | No | — | 5% of samples | — | Resolved | Jan 31, 2004 | Total Coliform Rule |
| Jul 1, 2003 | — | Consumer Confidence Rule | Other | No | No | — | — | — | Resolved | Jul 14, 2003 | Consumer Confidence Rule |
| Jul 1, 2002 | — | Consumer Confidence Rule | Other | No | No | — | — | — | Resolved | Jul 14, 2003 | Consumer Confidence Rule |
| Sep 1, 1999 | Sep 30, 1999 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Resolved | Sep 30, 1999 | Total Coliform Rule |
| 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 | 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 | Fluoride | MR | No | Yes | — | 4.0 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 | Selenium | MR | No | Yes | — | 0.05 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 |
| Sep 18, 1985 | Sep 16, 1988 | Arsenic | MR | No | Yes | — | 0.010 mg/L | — | Archived | Sep 16, 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.