SAN YSIDRO WATER SUPPLY SYSTEM
New Mexico — Community Water System — PWSID: NM3509723
System Information
| PWSID | NM3509723 |
| System Name | SAN YSIDRO WATER SUPPLY SYSTEM |
| System Type | Community Water System |
| Water Source | Ground Water |
| Activity Status | Active |
| 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 | SAN YSIDRO |
| ZIP Code | 87053 |
| Address | — |
| Organization | MARTINEZ, SHAWNASI |
| Phone | 575-834-7398 |
Population & Service
| Population Served | 166 |
| Service Connections | 96 |
Drinking Water Violations (431)
This water system has 431 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 12, 2025 | — | TT | Yes | No | — | — | — | Unaddressed | — | — | |
| Jul 12, 2025 | — | TT | Yes | No | — | — | — | Unaddressed | — | — | |
| Jul 12, 2025 | — | TT | Yes | No | — | — | — | Unaddressed | — | — | |
| Jul 12, 2025 | — | TT | Yes | No | — | — | — | Unaddressed | — | — | |
| Jul 12, 2025 | — | TT | Yes | No | — | — | — | Unaddressed | — | — | |
| Jul 12, 2025 | — | TT | Yes | No | — | — | — | Unaddressed | — | — | |
| Oct 17, 2024 | — | TT | Yes | No | — | — | — | Unaddressed | — | — | |
| Oct 17, 2024 | — | TT | Yes | No | — | — | — | Unaddressed | — | — | |
| Oct 17, 2024 | — | RPT | No | No | — | — | — | Unaddressed | — | — | |
| Oct 17, 2024 | — | TT | Yes | No | — | — | — | Unaddressed | — | — | |
| Oct 17, 2024 | — | RPT | No | No | — | — | — | Unaddressed | — | — | |
| Oct 17, 2024 | — | RPT | No | No | — | — | — | Unaddressed | — | — | |
| Jul 1, 2024 | Sep 30, 2024 | MCL | Yes | No | 5 MG/L | 4.0 mg/L | 4 | Resolved | Sep 30, 2024 | — | |
| Jul 1, 2024 | Sep 30, 2024 | MCL | Yes | No | 5 MG/L | 4.0 mg/L | 4 | Resolved | Sep 30, 2024 | — | |
| Jul 1, 2024 | Sep 30, 2024 | MCL | Yes | No | 5 MG/L | 4.0 mg/L | 4 | Resolved | Sep 30, 2024 | — | |
| Jul 1, 2024 | Sep 30, 2024 | MCL | Yes | No | 5 MG/L | 4.0 mg/L | 4 | Resolved | Sep 30, 2024 | — | |
| Apr 1, 2024 | Jun 30, 2024 | MCL | Yes | No | 5.2 MG/L | 4.0 mg/L | 4 | Resolved | Jun 30, 2024 | — | |
| Apr 1, 2024 | Jun 30, 2024 | MCL | Yes | No | 5.2 MG/L | 4.0 mg/L | 4 | Resolved | Jun 30, 2024 | — | |
| Apr 1, 2024 | Jun 30, 2024 | MCL | Yes | No | 5.2 MG/L | 4.0 mg/L | 4 | Resolved | Jun 30, 2024 | — | |
| Apr 1, 2024 | Jun 30, 2024 | MCL | Yes | No | 5.2 MG/L | 4.0 mg/L | 4 | Resolved | Jun 30, 2024 | — | |
| Apr 1, 2024 | Jun 30, 2024 | MCL | Yes | No | 5.2 MG/L | 4.0 mg/L | 4 | Resolved | Jun 30, 2024 | — | |
| Jan 1, 2024 | Mar 31, 2024 | MCL | Yes | No | 5 MG/L | 4.0 mg/L | 4 | Resolved | Mar 31, 2024 | — | |
| Jan 1, 2024 | Mar 31, 2024 | MCL | Yes | No | 5 MG/L | 4.0 mg/L | 4 | Resolved | Mar 31, 2024 | — | |
| Jan 1, 2024 | Mar 31, 2024 | MCL | Yes | No | 5 MG/L | 4.0 mg/L | 4 | Resolved | Mar 31, 2024 | — | |
| Jan 1, 2024 | Mar 31, 2024 | MCL | Yes | No | 5 MG/L | 4.0 mg/L | 4 | Resolved | Mar 31, 2024 | — | |
| Jan 1, 2024 | Mar 31, 2024 | MCL | Yes | No | 5 MG/L | 4.0 mg/L | 4 | Resolved | Mar 31, 2024 | — | |
| Nov 1, 2023 | Jan 31, 2024 | MR | No | Yes | — | 0.060 mg/L | — | Resolved | Jan 31, 2024 | — | |
| Nov 1, 2023 | Jan 31, 2024 | MR | No | Yes | — | 0.080 mg/L | — | Resolved | Jan 31, 2024 | — | |
| Nov 1, 2023 | Jan 31, 2024 | MR | No | Yes | — | 0.060 mg/L | — | Resolved | Jan 31, 2024 | — | |
| Nov 1, 2023 | Jan 31, 2024 | MR | No | Yes | — | 0.080 mg/L | — | Resolved | Jan 31, 2024 | — | |
| Nov 1, 2023 | Jan 31, 2024 | MR | No | Yes | — | 0.080 mg/L | — | Resolved | Jan 31, 2024 | — | |
| Nov 1, 2023 | Jan 31, 2024 | MR | No | Yes | — | 0.080 mg/L | — | Resolved | Jan 31, 2024 | — | |
| Nov 1, 2023 | Jan 31, 2024 | MR | No | Yes | — | 0.060 mg/L | — | Resolved | Jan 31, 2024 | — | |
| Nov 1, 2023 | Jan 31, 2024 | MR | No | Yes | — | 0.060 mg/L | — | Resolved | Jan 31, 2024 | — | |
| Oct 1, 2023 | Dec 31, 2023 | MCL | Yes | No | 4.8 MG/L | 4.0 mg/L | 4 | Resolved | Dec 31, 2023 | — | |
| Oct 1, 2023 | Dec 31, 2023 | MR | No | Yes | — | 0.060 mg/L | — | Resolved | Dec 31, 2023 | — | |
| Oct 1, 2023 | Dec 31, 2023 | MR | No | Yes | — | 0.080 mg/L | — | Resolved | Dec 31, 2023 | — | |
| Oct 1, 2023 | Dec 31, 2023 | MR | No | Yes | — | 0.060 mg/L | — | Resolved | Dec 31, 2023 | — | |
| Oct 1, 2023 | Dec 31, 2023 | MCL | Yes | No | 4.8 MG/L | 4.0 mg/L | 4 | Resolved | Dec 31, 2023 | — | |
| Oct 1, 2023 | Dec 31, 2023 | MCL | Yes | No | 4.8 MG/L | 4.0 mg/L | 4 | Resolved | Dec 31, 2023 | — | |
| Oct 1, 2023 | Dec 31, 2023 | MR | No | Yes | — | 0.080 mg/L | — | Resolved | Dec 31, 2023 | — | |
| Oct 1, 2023 | Dec 31, 2023 | MR | No | Yes | — | 0.060 mg/L | — | Resolved | Dec 31, 2023 | — | |
| Oct 1, 2023 | Dec 31, 2023 | MR | No | Yes | — | 0.080 mg/L | — | Resolved | Dec 31, 2023 | — | |
| Oct 1, 2023 | Dec 31, 2023 | MR | No | Yes | — | 0.060 mg/L | — | Resolved | Dec 31, 2023 | — | |
| Oct 1, 2023 | Dec 31, 2023 | MCL | Yes | No | 4.8 MG/L | 4.0 mg/L | 4 | Resolved | Dec 31, 2023 | — | |
| Oct 1, 2023 | Dec 31, 2023 | MCL | Yes | No | 4.8 MG/L | 4.0 mg/L | 4 | Resolved | Dec 31, 2023 | — | |
| Oct 1, 2023 | Dec 31, 2023 | MR | No | Yes | — | 0.080 mg/L | — | Resolved | Dec 31, 2023 | — | |
| Jul 1, 2023 | Sep 30, 2023 | MCL | Yes | No | 4.5 MG/L | 4.0 mg/L | 4 | Resolved | Sep 30, 2023 | — | |
| Jul 1, 2023 | Sep 30, 2023 | MCL | Yes | No | 4.5 MG/L | 4.0 mg/L | 4 | Resolved | Sep 30, 2023 | — | |
| Jul 1, 2023 | Sep 30, 2023 | MCL | Yes | No | 4.5 MG/L | 4.0 mg/L | 4 | Resolved | Sep 30, 2023 | — |
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.