EL LLANO MDWCA
New Mexico — Community Water System — PWSID: NM3501621
System Information
| PWSID | NM3501621 |
| System Name | EL LLANO MDWCA |
| System Type | Community Water System |
| Water Source | Ground Water |
| Activity Status | Non-Inventory |
| Owner Type | Local |
| EPA Region | 06 |
| Serves School | No |
| Wholesaler | No |
| First Reported | Mar 12, 1980 |
| Last Reported | Mar 31, 2026 |
Location & Contact
| State | New Mexico |
| City | SANTA CRUZ |
| ZIP Code | 87567 |
| Address | — |
| Organization | MARQUEZ, JOHN |
| Phone | 505-753-9869 |
Population & Service
| Population Served | 105 |
| Service Connections | 53 |
Drinking Water Violations (124)
This water system has 124 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, 2012 | Sep 30, 2012 | MCL | Yes | No | 38 UG/L | 30 ug/L | 30 | Archived | Sep 30, 2012 | — | |
| Jul 1, 2012 | Sep 30, 2012 | MCL | Yes | No | 38 UG/L | 30 ug/L | 30 | Archived | Sep 30, 2012 | — | |
| Jul 1, 2012 | Sep 30, 2012 | MCL | Yes | No | 38 UG/L | 30 ug/L | 30 | Archived | Sep 30, 2012 | — | |
| Jul 1, 2012 | — | Other | No | No | — | — | — | Resolved | Aug 7, 2012 | — | |
| Jul 1, 2012 | — | Other | No | No | — | — | — | Resolved | Aug 7, 2012 | — | |
| May 18, 2012 | — | Other | No | No | — | — | — | Resolved | Aug 14, 2012 | — | |
| Apr 1, 2012 | Jun 30, 2012 | MCL | Yes | No | 37 UG/L | 30 ug/L | 30 | Archived | Jun 30, 2012 | — | |
| Apr 1, 2012 | Jun 30, 2012 | MR | No | Yes | — | 4.0 mg/L | — | Archived | Jun 30, 2012 | — | |
| Apr 1, 2012 | Jun 30, 2012 | MR | No | Yes | — | 4.0 mg/L | — | Archived | Jun 30, 2012 | — | |
| Apr 1, 2012 | Jun 30, 2012 | MR | No | Yes | — | 4.0 mg/L | — | Archived | Jun 30, 2012 | — | |
| Apr 1, 2012 | Jun 30, 2012 | MCL | Yes | No | 37 UG/L | 30 ug/L | 30 | Archived | Jun 30, 2012 | — | |
| Apr 1, 2012 | Jun 30, 2012 | MCL | Yes | No | 37 UG/L | 30 ug/L | 30 | Archived | Jun 30, 2012 | — | |
| Mar 11, 2012 | — | Other | No | No | — | — | — | Resolved | Mar 13, 2012 | — | |
| Jan 8, 2012 | — | Other | No | No | — | — | — | Resolved | Mar 13, 2012 | — | |
| Jan 1, 2012 | Mar 31, 2012 | MCL | Yes | No | 36 UG/L | 30 ug/L | 30 | Archived | Mar 31, 2012 | — | |
| Jan 1, 2012 | Mar 31, 2012 | MCL | Yes | No | 36 UG/L | 30 ug/L | 30 | Archived | Mar 31, 2012 | — | |
| Jan 1, 2012 | Mar 31, 2012 | MCL | Yes | No | 36 UG/L | 30 ug/L | 30 | Archived | Mar 31, 2012 | — | |
| Jan 1, 2012 | Mar 31, 2012 | MCL | Yes | No | 36 UG/L | 30 ug/L | 30 | Archived | Mar 31, 2012 | — | |
| Jan 1, 2012 | Mar 31, 2012 | MR | No | Yes | — | 4.0 mg/L | — | Archived | Mar 31, 2012 | — | |
| Jan 1, 2012 | Mar 31, 2012 | MR | No | Yes | — | 4.0 mg/L | — | Archived | Mar 31, 2012 | — | |
| Jan 1, 2012 | Mar 31, 2012 | MR | No | Yes | — | 4.0 mg/L | — | Archived | Mar 31, 2012 | — | |
| Oct 1, 2011 | Dec 31, 2011 | MCL | Yes | No | 35 UG/L | 30 ug/L | 30 | Archived | Dec 31, 2011 | — | |
| Oct 1, 2011 | Dec 31, 2011 | MCL | Yes | No | 35 UG/L | 30 ug/L | 30 | Archived | Dec 31, 2011 | — | |
| Oct 1, 2011 | Dec 31, 2011 | MCL | Yes | No | 35 UG/L | 30 ug/L | 30 | Archived | Dec 31, 2011 | — | |
| Oct 1, 2011 | Dec 31, 2011 | MCL | Yes | No | 35 UG/L | 30 ug/L | 30 | Archived | Dec 31, 2011 | — | |
| Aug 1, 2011 | Aug 31, 2011 | MR | No | No | — | 5% of samples | — | Resolved | Aug 31, 2011 | — | |
| Aug 1, 2011 | Aug 31, 2011 | MR | No | No | — | 5% of samples | — | Resolved | Aug 31, 2011 | — | |
| Aug 1, 2011 | Aug 31, 2011 | MR | No | No | — | 5% of samples | — | Resolved | Aug 31, 2011 | — | |
| Jul 1, 2011 | — | Other | No | No | — | — | — | Resolved | Jul 29, 2011 | — | |
| Jul 1, 2011 | — | Other | No | No | — | — | — | Resolved | Jul 29, 2011 | — | |
| Jul 1, 2011 | Sep 30, 2011 | MCL | Yes | No | 35 UG/L | 30 ug/L | 30 | Archived | Sep 30, 2011 | — | |
| Jul 1, 2011 | Sep 30, 2011 | MCL | Yes | No | 35 UG/L | 30 ug/L | 30 | Archived | Sep 30, 2011 | — | |
| Jul 1, 2011 | Sep 30, 2011 | MCL | Yes | No | 35 UG/L | 30 ug/L | 30 | Archived | Sep 30, 2011 | — | |
| Jul 1, 2011 | Sep 30, 2011 | MCL | Yes | No | 35 UG/L | 30 ug/L | 30 | Archived | Sep 30, 2011 | — | |
| Apr 1, 2011 | Jun 30, 2011 | MCL | Yes | No | 36 UG/L | 30 ug/L | 30 | Archived | Jun 30, 2011 | — | |
| Apr 1, 2011 | Jun 30, 2011 | MCL | Yes | No | 36 UG/L | 30 ug/L | 30 | Archived | Jun 30, 2011 | — | |
| Apr 1, 2011 | Jun 30, 2011 | MCL | Yes | No | 36 UG/L | 30 ug/L | 30 | Archived | Jun 30, 2011 | — | |
| Apr 1, 2011 | Jun 30, 2011 | MCL | Yes | No | 36 UG/L | 30 ug/L | 30 | Archived | Jun 30, 2011 | — | |
| Mar 12, 2011 | — | Other | No | No | — | — | — | Resolved | Dec 16, 2010 | — | |
| Mar 12, 2011 | — | Other | No | No | — | — | — | Resolved | Dec 16, 2010 | — | |
| Oct 1, 2010 | Dec 31, 2010 | MCL | Yes | No | 35 UG/L | 30 ug/L | 30 | Archived | Dec 31, 2010 | — | |
| Oct 1, 2010 | Dec 31, 2010 | MR | No | Yes | — | 30 ug/L | — | Archived | Dec 31, 2010 | — | |
| Oct 1, 2010 | Dec 31, 2010 | MCL | Yes | No | 35 UG/L | 30 ug/L | 30 | Archived | Dec 31, 2010 | — | |
| Jul 1, 2010 | Sep 30, 2010 | MCL | Yes | No | 35 UG/L | 30 ug/L | 30 | Archived | Sep 30, 2010 | — | |
| Jul 1, 2010 | Sep 30, 2010 | MCL | Yes | No | 35 UG/L | 30 ug/L | 30 | Archived | Sep 30, 2010 | — | |
| Jul 1, 2010 | Sep 30, 2010 | MCL | Yes | No | 35 UG/L | 30 ug/L | 30 | Archived | Sep 30, 2010 | — | |
| Jul 1, 2010 | Sep 30, 2010 | MCL | Yes | No | 35 UG/L | 30 ug/L | 30 | Archived | Sep 30, 2010 | — | |
| Apr 1, 2010 | Jun 30, 2010 | MCL | Yes | No | 36 UG/L | 30 ug/L | 30 | Archived | Jun 30, 2010 | — | |
| Apr 1, 2010 | Jun 30, 2010 | MCL | Yes | No | 36 UG/L | 30 ug/L | 30 | Archived | Jun 30, 2010 | — | |
| Apr 1, 2010 | Jun 30, 2010 | MCL | Yes | No | 36 UG/L | 30 ug/L | 30 | Archived | Jun 30, 2010 | — |
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.