AZ STATE PKS PATAGONIA LAKE
Arizona — Transient Non-Community — PWSID: AZ0412302
System Information
| PWSID | AZ0412302 |
| System Name | AZ STATE PKS PATAGONIA LAKE |
| System Type | Transient Non-Community |
| Water Source | Ground Water |
| Activity Status | Active |
| Owner Type | State |
| EPA Region | 09 |
| Serves School | No |
| Wholesaler | No |
| First Reported | Oct 5, 1979 |
| Last Reported | Mar 12, 2026 |
Location & Contact
| State | Arizona |
| City | NOGALES |
| ZIP Code | 85621 |
| Address | 400 Patagonia Lake |
| Organization | ALFORD, COLT |
| Phone | 520-287-6965 |
Population & Service
| Population Served | 564 |
| Service Connections | 140 |
Drinking Water Violations (31)
This water system has 31 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Jun 1, 2020 | — | RPT | No | No | — | — | — | Resolved | Jul 21, 2020 | — | |
| Jun 1, 2020 | — | RPT | No | No | — | — | — | Resolved | Jul 21, 2020 | — | |
| Jan 1, 2013 | Dec 31, 2013 | MR | No | Yes | — | 10 mg/L | — | Resolved | Dec 31, 2013 | — | |
| Jan 1, 2013 | Dec 31, 2013 | MR | No | Yes | — | 10 mg/L | — | Resolved | Dec 31, 2013 | — | |
| Oct 1, 2010 | Oct 31, 2010 | MR | No | No | — | 5% of samples | — | Resolved | Oct 31, 2010 | — | |
| Oct 1, 2010 | Oct 31, 2010 | MR | No | No | — | 5% of samples | — | Resolved | Oct 31, 2010 | — | |
| Jan 1, 2009 | Dec 31, 2009 | MR | No | Yes | — | 10 mg/L | — | Resolved | Dec 31, 2009 | — | |
| Jan 1, 2009 | Dec 31, 2009 | MR | No | Yes | — | 10 mg/L | — | Resolved | Dec 31, 2009 | — | |
| May 1, 2007 | May 31, 2007 | MR | No | No | — | 5% of samples | — | Resolved | May 31, 2007 | — | |
| Mar 1, 2007 | Mar 31, 2007 | MR | No | No | — | 5% of samples | — | Resolved | Mar 31, 2007 | — | |
| Aug 1, 2006 | Aug 31, 2006 | MR | No | No | — | 5% of samples | — | Resolved | Aug 31, 2006 | — | |
| Aug 1, 2006 | Aug 31, 2006 | MCL | Yes | No | — | 5% of samples | — | Resolved | Aug 31, 2006 | — | |
| Mar 1, 2006 | Mar 31, 2006 | MR | No | No | — | 5% of samples | — | Resolved | Mar 31, 2006 | — | |
| Jan 1, 2006 | Dec 31, 2006 | MR | No | Yes | — | 10 mg/L | — | Resolved | Dec 31, 2006 | — | |
| Oct 1, 2004 | Oct 31, 2004 | MR | No | No | — | 5% of samples | — | Resolved | Oct 31, 2004 | — | |
| Oct 1, 2004 | Oct 31, 2004 | MR | No | No | — | 5% of samples | — | Resolved | Oct 31, 2004 | — | |
| Mar 1, 2004 | Mar 31, 2004 | MR | No | No | — | 5% of samples | — | Resolved | Mar 31, 2004 | — | |
| Jan 1, 2001 | Dec 31, 2001 | MR | No | Yes | — | 10 mg/L | — | Resolved | Dec 31, 2001 | — | |
| Jan 1, 2000 | Dec 31, 2000 | MR | No | Yes | — | 10 mg/L | — | Resolved | Dec 31, 2000 | — | |
| Sep 1, 1999 | Sep 30, 1999 | MR | No | No | — | 5% of samples | — | Resolved | Sep 30, 1999 | — | |
| Jun 1, 1999 | Jun 30, 1999 | MR | No | No | — | 5% of samples | — | Resolved | Jun 30, 1999 | — | |
| Sep 1, 1998 | Sep 30, 1998 | MR | No | No | — | 5% of samples | — | Resolved | Sep 30, 1998 | — | |
| Jan 1, 1988 | Mar 31, 1988 | MR | No | Yes | — | 0.05 mg/L | — | Archived | Mar 31, 1988 | — | |
| Jan 1, 1988 | Mar 31, 1988 | MR | No | Yes | — | 0.005 mg/L | — | Archived | Mar 31, 1988 | — | |
| Jan 1, 1988 | Mar 31, 1988 | MR | No | Yes | — | 4.0 mg/L | — | Archived | Mar 31, 1988 | — | |
| Jan 1, 1988 | Mar 31, 1988 | MR | No | Yes | — | 10 mg/L | — | Archived | Mar 31, 1988 | — | |
| Jan 1, 1988 | Mar 31, 1988 | MR | No | Yes | — | 0.1 mg/L | — | Archived | Mar 31, 1988 | — | |
| Jan 1, 1988 | Mar 31, 1988 | MR | No | Yes | — | 0.002 mg/L | — | Archived | Mar 31, 1988 | — | |
| Jan 1, 1988 | Mar 31, 1988 | MR | No | Yes | — | 2 mg/L | — | Archived | Mar 31, 1988 | — | |
| Mar 19, 1985 | Mar 17, 1988 | MR | No | Yes | — | 0.010 mg/L | — | Archived | Mar 17, 1988 | — | |
| — | — | — | No | No | — | — | — | — | — | — |
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.