SIESTA SHORES WCID
PWS ID: TX2530004 · ZAPATA, Texas 78076-0321
Population Served
1,842
Total Violations
258
Health-Based Violations
69
Water Source
Surface Water
System Details
- System Type
- Community
- Owner Type
- Local
- Connections
- 614
- County
- Zapata
- School/Daycare
- No
- MCL Violations
- 44
- Monitoring Violations
- 115
- Treatment Tech Violations
- 25
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Public Notice | Other | 51 | 2022 |
| Interim Enhanced Surface Water Treatment Rule | MR | 37 | 2018 |
| TTHM | MCL | 32 | 2020 |
| Lead and Copper Rule | MR | 26 | 2024 |
| Interim Enhanced Surface Water Treatment Rule | TT | 25 | 2018 |
| TTHM | MR | 19 | 2024 |
| CARBON, TOTAL | MR | 12 | 2018 |
| Total Haloacetic Acids (HAA5) | MCL | 12 | 2018 |
| Coliform (TCR) | MR | 8 | 2015 |
| Total Haloacetic Acids (HAA5) | MR | 8 | 2018 |
| Revised Total Coliform Rule | MON | 4 | 2023 |
| Surface Water Treatment Rule | MR | 1 | 2003 |
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025.
This data is provided for informational purposes only.