CITY OF LA GRULLA
PWS ID: TX2140006 · LA GRULLA, Texas 78548-0197
PFAS Detected
1 PFAS "forever chemicals" detected in testing under EPA's UCMR5 monitoring program.
Population Served
9,500
Total Violations
222
Health-Based Violations
41
Water Source
Surface Water
System Details
- System Type
- Community
- Owner Type
- Local
- Connections
- 4,000
- County
- Starr
- School/Daycare
- No
- MCL Violations
- 0
- Monitoring Violations
- 127
- Treatment Tech Violations
- 41
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Interim Enhanced Surface Water Treatment Rule | MR | 27 | 2023 |
| Public Notice | Other | 25 | 2025 |
| Lead and Copper Rule | MR | 25 | 2025 |
| Interim Enhanced Surface Water Treatment Rule | TT | 24 | 2024 |
| Coliform (TCR) | MR | 13 | 2010 |
| Consumer Confidence Rule | Other | 12 | 2024 |
| Revised Total Coliform Rule | TT | 12 | 2025 |
| Revised Total Coliform Rule | MON | 8 | 2022 |
| CARBON, TOTAL | MR | 4 | 2021 |
| Surface Water Treatment Rule | TT | 3 | 2004 |
| TTHM | MR | 3 | 2025 |
| E. COLI | MR | 3 | 2009 |
| LEAD AND COPPER RULE REVISIONS | RPT | 2 | 2024 |
| LEAD AND COPPER RULE REVISIONS | TT | 2 | 2024 |
| Total Haloacetic Acids (HAA5) | MR | 2 | 2013 |
| Arsenic | MR | 1 | 2013 |
| Barium | MR | 1 | 2013 |
| Cadmium | MR | 1 | 2013 |
| Chromium | MR | 1 | 2013 |
| Antimony, Total | MR | 1 | 2013 |
| Beryllium, Total | MR | 1 | 2013 |
| Thallium, Total | MR | 1 | 2013 |
| Selenium | MR | 1 | 2013 |
| Xylenes, Total | MR | 1 | 2013 |
| o-Dichlorobenzene | MR | 1 | 2013 |
| p-Dichlorobenzene | MR | 1 | 2013 |
| Vinyl chloride | MR | 1 | 2013 |
| trans-1,2-Dichloroethylene | MR | 1 | 2013 |
| 1,1,1-Trichloroethane | MR | 1 | 2013 |
| Carbon tetrachloride | MR | 1 | 2013 |
PFAS Testing Results (UCMR5)
Results from EPA's Fifth Unregulated Contaminant Monitoring Rule. 2 of 10 samples detected PFAS.
| Contaminant | Date | Result | MRL | Status |
|---|---|---|---|---|
| lithium | 7/9/2025 | 40.0000 µg/L | 9 µg/L | Detected |
| NMeFOSAA | 7/9/2025 | <0.006 µg/L | 0.006 µg/L | Not Detected |
| NEtFOSAA | 7/9/2025 | <0.005 µg/L | 0.005 µg/L | Not Detected |
| PFTA | 7/9/2025 | <0.008 µg/L | 0.008 µg/L | Not Detected |
| PFTrDA | 7/9/2025 | <0.007 µg/L | 0.007 µg/L | Not Detected |
| PFTA | 5/6/2025 | <0.008 µg/L | 0.008 µg/L | Not Detected |
| PFTrDA | 5/6/2025 | <0.007 µg/L | 0.007 µg/L | Not Detected |
| NEtFOSAA | 5/6/2025 | <0.005 µg/L | 0.005 µg/L | Not Detected |
| NMeFOSAA | 5/6/2025 | <0.006 µg/L | 0.006 µg/L | Not Detected |
| lithium | 3/17/2025 | 35.0000 µg/L | 9 µg/L | Detected |
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025.
PFAS data from EPA UCMR5 monitoring program (2023-2025).
This data is provided for informational purposes only.