COSTILLA MDWCA
New Mexico - Community Water System - PWSID: NM3505929
System Information
| PWSID | NM3505929 |
| System Name | COSTILLA MDWCA |
| 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 | COSTILLA |
| ZIP Code | 87524 |
| Address | - |
| Organization | RIVERA, RICHARD |
| Phone | 505-586-1271 |
Population & Service
| Population Served | 244 |
| Service Connections | 100 |
Drinking Water Violations (249)
This water system has 249 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, 2025 | - | Other | No | No | - | - | - | Resolved | Aug 1, 2025 | - | |
| Jul 1, 2025 | - | Other | No | No | - | - | - | Resolved | Aug 1, 2025 | - | |
| Oct 17, 2024 | - | TT | Yes | No | - | - | - | Unaddressed | - | - | |
| Oct 17, 2024 | - | RPT | No | No | - | - | - | Unaddressed | - | - | |
| Oct 17, 2024 | - | RPT | No | No | - | - | - | Unaddressed | - | - | |
| Oct 17, 2024 | - | TT | Yes | No | - | - | - | Unaddressed | - | - | |
| Jul 3, 2024 | - | TT | Yes | No | - | - | - | Unaddressed | - | - | |
| Jul 3, 2024 | - | TT | Yes | No | - | - | - | Unaddressed | - | - | |
| Jul 3, 2024 | - | TT | Yes | No | - | - | - | Unaddressed | - | - | |
| Jul 3, 2024 | - | TT | Yes | No | - | - | - | Unaddressed | - | - | |
| Apr 7, 2024 | - | Other | No | No | - | - | - | Unaddressed | - | - | |
| Apr 7, 2024 | - | Other | No | No | - | - | - | Unaddressed | - | - | |
| Oct 1, 2023 | - | Other | No | No | - | - | - | Resolved | Nov 27, 2023 | - | |
| Oct 1, 2023 | - | Other | No | No | - | - | - | Resolved | Nov 27, 2023 | - | |
| Jul 1, 2023 | - | Other | No | No | - | - | - | Resolved | Nov 27, 2023 | - | |
| Jul 1, 2023 | - | Other | No | No | - | - | - | Resolved | Nov 27, 2023 | - | |
| Dec 31, 2021 | - | Other | No | No | - | - | - | Resolved | Mar 2, 2022 | - | |
| Dec 19, 2021 | - | Other | No | No | - | - | - | Resolved | Mar 2, 2022 | - | |
| Oct 24, 2021 | - | Other | No | No | - | - | - | Resolved | Mar 2, 2022 | - | |
| Oct 6, 2021 | - | Other | No | No | - | - | - | Resolved | Dec 1, 2025 | - | |
| Oct 1, 2021 | - | Other | No | No | - | - | - | Resolved | Mar 2, 2022 | - | |
| Oct 1, 2021 | - | Other | No | No | - | - | - | Resolved | Mar 2, 2022 | - | |
| Jul 1, 2021 | - | Other | No | No | - | - | - | Resolved | Feb 22, 2022 | - | |
| Jul 1, 2021 | - | Other | No | No | - | - | - | Resolved | Feb 22, 2022 | - | |
| Jan 1, 2021 | Mar 31, 2021 | MR | No | Yes | - | 4.0 mg/L | - | Resolved | Mar 31, 2021 | - | |
| Jan 1, 2021 | Mar 31, 2021 | MR | No | Yes | - | 4.0 mg/L | - | Resolved | Mar 31, 2021 | - | |
| Jan 1, 2021 | Mar 31, 2021 | MR | No | Yes | - | 4.0 mg/L | - | Resolved | Mar 31, 2021 | - | |
| Nov 1, 2020 | Nov 30, 2020 | MON | No | Yes | - | - | - | Resolved | Nov 30, 2020 | - | |
| Nov 1, 2020 | Nov 30, 2020 | MON | No | Yes | - | - | - | Resolved | Nov 30, 2020 | - | |
| Nov 1, 2020 | Nov 30, 2020 | MON | No | Yes | - | - | - | Resolved | Nov 30, 2020 | - | |
| Nov 1, 2020 | Nov 30, 2020 | MON | No | Yes | - | - | - | Resolved | Nov 30, 2020 | - | |
| Oct 1, 2020 | Oct 31, 2020 | MON | No | Yes | - | - | - | Resolved | Oct 31, 2020 | - | |
| Oct 1, 2020 | Oct 31, 2020 | MON | No | Yes | - | - | - | Resolved | Oct 31, 2020 | - | |
| Oct 1, 2020 | Dec 31, 2020 | MR | No | Yes | - | 4.0 mg/L | - | Resolved | Dec 31, 2020 | - | |
| Oct 1, 2020 | Dec 31, 2020 | MR | No | Yes | - | 4.0 mg/L | - | Resolved | Dec 31, 2020 | - | |
| Oct 1, 2020 | Oct 31, 2020 | MON | No | Yes | - | - | - | Resolved | Oct 31, 2020 | - | |
| Oct 1, 2020 | Oct 31, 2020 | MON | No | Yes | - | - | - | Resolved | Oct 31, 2020 | - | |
| Oct 1, 2020 | Dec 31, 2020 | MR | No | Yes | - | 4.0 mg/L | - | Resolved | Dec 31, 2020 | - | |
| Oct 1, 2020 | Dec 31, 2020 | MR | No | Yes | - | 4.0 mg/L | - | Resolved | Dec 31, 2020 | - | |
| Sep 1, 2020 | Sep 30, 2020 | MON | No | Yes | - | - | - | Resolved | Sep 30, 2020 | - | |
| Sep 1, 2020 | Sep 30, 2020 | MON | No | Yes | - | - | - | Resolved | Sep 30, 2020 | - | |
| Sep 1, 2020 | Sep 30, 2020 | MON | No | Yes | - | - | - | Resolved | Sep 30, 2020 | - | |
| Sep 1, 2020 | Sep 30, 2020 | MON | No | Yes | - | - | - | Resolved | Sep 30, 2020 | - | |
| Jul 1, 2020 | Sep 30, 2020 | MR | No | Yes | - | 4.0 mg/L | - | Resolved | Sep 30, 2020 | - | |
| Jul 1, 2020 | Sep 30, 2020 | MR | No | Yes | - | 4.0 mg/L | - | Resolved | Sep 30, 2020 | - | |
| Jul 1, 2020 | Sep 30, 2020 | MR | No | Yes | - | 4.0 mg/L | - | Resolved | Sep 30, 2020 | - | |
| Jul 1, 2020 | Sep 30, 2020 | MR | No | Yes | - | 4.0 mg/L | - | Resolved | Sep 30, 2020 | - | |
| Feb 16, 2020 | - | Other | No | No | - | - | - | Resolved | Jul 1, 2020 | - | |
| Oct 1, 2019 | - | MR | No | No | - | TT | - | Resolved | Sep 21, 2021 | - | |
| Oct 1, 2019 | - | MR | No | No | - | TT | - | Resolved | Sep 21, 2021 | - |
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.