MEDINA VALLEY HIGH SCHOOL
Texas — Non-Transient Non-Community — PWSID: TX1630012
System Information
| PWSID | TX1630012 |
| System Name | MEDINA VALLEY HIGH SCHOOL |
| System Type | Non-Transient Non-Community |
| Water Source | Ground Water |
| Activity Status | Active |
| Owner Type | Local |
| EPA Region | 06 |
| Serves School | Yes |
| Wholesaler | No |
| First Reported | Mar 14, 1980 |
| Last Reported | Jan 6, 2026 |
Location & Contact
| State | Texas |
| City | CASTROVILLE |
| ZIP Code | 78009-5313 |
| Address | 8449 FM 471 S |
| Organization | CALOSS, SCOTT |
| Phone | 830-931-2243 |
Population & Service
| Population Served | 2,501 |
| Service Connections | 27 |
Drinking Water Violations (39)
This water system has 39 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Sep 29, 2025 | — | Lead and Copper Rule | MR | No | No | — | TT | — | Unaddressed | — | Lead and Copper Rule |
| May 1, 2025 | — | Public Notice | Other | No | No | — | — | — | Unaddressed | — | Public Notice Rule and Revised PN Rule |
| Jan 1, 2025 | — | Lead and Copper Rule | MR | No | No | — | TT | — | Resolved | May 15, 2025 | Lead and Copper Rule |
| Jan 1, 2025 | — | Lead and Copper Rule | MR | No | No | — | TT | — | Resolved | May 15, 2025 | Lead and Copper Rule |
| Jan 1, 2025 | — | Lead and Copper Rule | MR | No | No | — | TT | — | Resolved | May 15, 2025 | Lead and Copper Rule |
| Oct 17, 2024 | — | LEAD AND COPPER RULE REVISIONS | RPT | No | No | — | — | — | Unaddressed | — | Lead and Copper Rule Revisions |
| Oct 17, 2024 | — | LEAD AND COPPER RULE REVISIONS | RPT | No | No | — | — | — | Unaddressed | — | Lead and Copper Rule Revisions |
| Oct 17, 2024 | — | LEAD AND COPPER RULE REVISIONS | TT | Yes | No | — | — | — | Unaddressed | — | Lead and Copper Rule Revisions |
| Oct 17, 2024 | — | LEAD AND COPPER RULE REVISIONS | TT | Yes | No | — | — | — | Unaddressed | — | Lead and Copper Rule Revisions |
| Oct 1, 2024 | Dec 31, 2024 | Chlorine | MR | No | Yes | — | 4.0 mg/L | — | Resolved | Dec 31, 2024 | Stage 1 Disinfectants and Disinfection Byproducts Rule |
| Oct 1, 2024 | Dec 31, 2024 | Chlorine | MR | No | Yes | — | 4.0 mg/L | — | Resolved | Dec 31, 2024 | Stage 1 Disinfectants and Disinfection Byproducts Rule |
| Oct 1, 2024 | Dec 31, 2024 | Chlorine | MR | No | Yes | — | 4.0 mg/L | — | Resolved | Dec 31, 2024 | Stage 1 Disinfectants and Disinfection Byproducts Rule |
| Sep 29, 2024 | — | Lead and Copper Rule | MR | No | No | — | TT | — | Resolved | Jan 10, 2025 | Lead and Copper Rule |
| Sep 29, 2024 | — | Lead and Copper Rule | MR | No | No | — | TT | — | Resolved | Jan 10, 2025 | Lead and Copper Rule |
| Sep 29, 2024 | — | Lead and Copper Rule | MR | No | No | — | TT | — | Resolved | Jan 10, 2025 | Lead and Copper Rule |
| Oct 1, 2023 | — | Lead and Copper Rule | MR | No | No | — | TT | — | Resolved | Feb 27, 2024 | Lead and Copper Rule |
| Oct 1, 2023 | — | Lead and Copper Rule | MR | No | No | — | TT | — | Resolved | Feb 27, 2024 | Lead and Copper Rule |
| Oct 1, 2023 | — | Lead and Copper Rule | MR | No | No | — | TT | — | Resolved | Feb 27, 2024 | Lead and Copper Rule |
| Oct 1, 2023 | — | Lead and Copper Rule | MR | No | No | — | TT | — | Resolved | Feb 27, 2024 | Lead and Copper Rule |
| Mar 1, 2016 | Mar 31, 2016 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Resolved | Mar 31, 2016 | Total Coliform Rule |
| Mar 1, 2016 | Mar 31, 2016 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Resolved | Mar 31, 2016 | Total Coliform Rule |
| Mar 1, 2016 | Mar 31, 2016 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Resolved | Mar 31, 2016 | Total Coliform Rule |
| Mar 1, 2016 | Mar 31, 2016 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Resolved | Mar 31, 2016 | Total Coliform Rule |
| Feb 1, 2016 | — | E. COLI | MR | No | Yes | — | — | — | Resolved | Sep 30, 2016 | Ground Water Rule |
| Feb 1, 2016 | — | E. COLI | MR | No | Yes | — | — | — | Resolved | Sep 30, 2016 | Ground Water Rule |
| Nov 13, 2014 | — | Public Notice | Other | No | No | — | — | — | Resolved | Nov 13, 2014 | Public Notice Rule and Revised PN Rule |
| Nov 13, 2014 | — | Public Notice | Other | No | No | — | — | — | Resolved | Nov 13, 2014 | Public Notice Rule and Revised PN Rule |
| Oct 1, 2014 | Oct 31, 2014 | Coliform (TCR) | MCL | Yes | No | — | 5% of samples | — | Resolved | Oct 31, 2014 | Total Coliform Rule |
| Oct 1, 2014 | — | E. COLI | MR | No | Yes | — | — | — | Resolved | Mar 31, 2016 | Ground Water Rule |
| Oct 1, 2014 | — | E. COLI | MR | No | Yes | — | — | — | Resolved | Mar 31, 2016 | Ground Water Rule |
| Oct 1, 2014 | — | E. COLI | MR | No | Yes | — | — | — | Resolved | Mar 31, 2016 | Ground Water Rule |
| Oct 1, 2014 | Oct 31, 2014 | Coliform (TCR) | MCL | Yes | No | — | 5% of samples | — | Resolved | Oct 31, 2014 | Total Coliform Rule |
| Oct 1, 2014 | Oct 31, 2014 | Coliform (TCR) | MCL | Yes | No | — | 5% of samples | — | Resolved | Oct 31, 2014 | Total Coliform Rule |
| Oct 1, 2014 | Oct 31, 2014 | Coliform (TCR) | MCL | Yes | No | — | 5% of samples | — | Resolved | Oct 31, 2014 | Total Coliform Rule |
| Jul 1, 2010 | Sep 30, 2010 | Chlorine | MR | No | Yes | — | 4.0 mg/L | — | Resolved | Sep 30, 2010 | Stage 1 Disinfectants and Disinfection Byproducts Rule |
| — | — | — | No | No | — | — | — | — | — | — | |
| — | — | — | No | No | — | — | — | — | — | — | |
| — | — | — | No | No | — | — | — | — | — | — | |
| — | — | — | 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.