Zapata Water Quality
Texas
According to EPA SDWIS, Zapata, Texas is served by 4 community water systems covering about 17,126 people. The same extract lists 72 health-based violation records, most recently coded 5200 in 2024. Counts are historical EPA registry rows, not a current compliance or drinkability score.
Drinking water in Zapata, Texas is delivered through 4 EPA-regulated community water systems serving an estimated 17,126 people. Each system is tracked in the EPA Safe Drinking Water Information System (SDWIS) under the Safe Drinking Water Act, which requires testing for regulated contaminants, consumer notification of violations, and publication of an annual Consumer Confidence Report.
PlainEnviro's health-based SDWIS extract shows 72 violation records across the 4 active community systems shown here. Monitoring and reporting records are not present in the extract. The records carry 5 distinct EPA contaminant codes: LEAD AND COPPER RULE REVISIONS, TTHM, Interim Enhanced Surface Water Treatment Rule, Revised Total Coliform Rule, Total Haloacetic Acids (HAA5).
A past EPA health-based registry row does not describe water delivered today or current compliance status; utilities notify customers and remediate under state primacy oversight when required. For current water-quality status and treatment practices, review your local utility's most recent Consumer Confidence Report or contact the Texas drinking water program. All records above reflect federal EPA SDWIS data and are not independently verified against state databases.
Community Water Systems
| System Name | Pop. Served | Violations | Status |
|---|---|---|---|
| ZAPATA COUNTY WATERWORKS SWTP | 13,736 | 4 | Health |
| SIESTA SHORES WCID | 1,893 | 16 | Health |
| ZAPATA COUNTY SAN YGNACIO AND RAMIRENO | 1,254 | 51 | Health |
| ZAPATA COUNTY WCID HWY 16 EAST | 243 | 1 | Health |
Does this city have health-based water violations?
These health-based records can represent Maximum Contaminant Level (MCL), Treatment Technique (TT), or Maximum Residual Disinfectant Level (MRDL) categories. A historical record does not establish that water is currently unsafe.
| Water system | Contaminant | Begin Date |
|---|---|---|
| ZAPATA COUNTY WCID HWY 16 EAST | LEAD AND COPPER RULE REVISIONS | 2024-10-17 |
| ZAPATA COUNTY SAN YGNACIO AND RAMIRENO | LEAD AND COPPER RULE REVISIONS | 2024-10-17 |
| ZAPATA COUNTY SAN YGNACIO AND RAMIRENO | TTHM | 2023-07-01 |
| ZAPATA COUNTY SAN YGNACIO AND RAMIRENO | TTHM | 2023-07-01 |
| ZAPATA COUNTY SAN YGNACIO AND RAMIRENO | TTHM | 2023-07-01 |
| ZAPATA COUNTY SAN YGNACIO AND RAMIRENO | Interim Enhanced Surface Water Treatment Rule | 2023-07-01 |
| ZAPATA COUNTY SAN YGNACIO AND RAMIRENO | Interim Enhanced Surface Water Treatment Rule | 2023-07-01 |
| ZAPATA COUNTY SAN YGNACIO AND RAMIRENO | Interim Enhanced Surface Water Treatment Rule | 2023-07-01 |
| ZAPATA COUNTY WATERWORKS SWTP | Revised Total Coliform Rule | 2023-06-01 |
| ZAPATA COUNTY WATERWORKS SWTP | Revised Total Coliform Rule | 2023-06-01 |
| ZAPATA COUNTY WATERWORKS SWTP | Revised Total Coliform Rule | 2023-06-01 |
| ZAPATA COUNTY WATERWORKS SWTP | Revised Total Coliform Rule | 2023-06-01 |
| ZAPATA COUNTY SAN YGNACIO AND RAMIRENO | TTHM | 2023-04-01 |
| ZAPATA COUNTY SAN YGNACIO AND RAMIRENO | TTHM | 2023-04-01 |
| ZAPATA COUNTY SAN YGNACIO AND RAMIRENO | TTHM | 2023-04-01 |
| ZAPATA COUNTY SAN YGNACIO AND RAMIRENO | TTHM | 2023-04-01 |
| ZAPATA COUNTY SAN YGNACIO AND RAMIRENO | TTHM | 2023-01-01 |
| ZAPATA COUNTY SAN YGNACIO AND RAMIRENO | TTHM | 2023-01-01 |
| ZAPATA COUNTY SAN YGNACIO AND RAMIRENO | TTHM | 2023-01-01 |
| ZAPATA COUNTY SAN YGNACIO AND RAMIRENO | TTHM | 2023-01-01 |
| ZAPATA COUNTY SAN YGNACIO AND RAMIRENO | TTHM | 2022-10-01 |
| ZAPATA COUNTY SAN YGNACIO AND RAMIRENO | TTHM | 2022-10-01 |
| ZAPATA COUNTY SAN YGNACIO AND RAMIRENO | TTHM | 2022-10-01 |
| ZAPATA COUNTY SAN YGNACIO AND RAMIRENO | TTHM | 2022-10-01 |
| ZAPATA COUNTY SAN YGNACIO AND RAMIRENO | Interim Enhanced Surface Water Treatment Rule | 2022-10-01 |
| ZAPATA COUNTY SAN YGNACIO AND RAMIRENO | Interim Enhanced Surface Water Treatment Rule | 2022-10-01 |
| ZAPATA COUNTY SAN YGNACIO AND RAMIRENO | Interim Enhanced Surface Water Treatment Rule | 2022-10-01 |
| ZAPATA COUNTY SAN YGNACIO AND RAMIRENO | Interim Enhanced Surface Water Treatment Rule | 2022-10-01 |
| ZAPATA COUNTY SAN YGNACIO AND RAMIRENO | Interim Enhanced Surface Water Treatment Rule | 2022-09-01 |
| ZAPATA COUNTY SAN YGNACIO AND RAMIRENO | Interim Enhanced Surface Water Treatment Rule | 2022-09-01 |
| ZAPATA COUNTY SAN YGNACIO AND RAMIRENO | Interim Enhanced Surface Water Treatment Rule | 2022-09-01 |
| ZAPATA COUNTY SAN YGNACIO AND RAMIRENO | Interim Enhanced Surface Water Treatment Rule | 2022-09-01 |
| ZAPATA COUNTY SAN YGNACIO AND RAMIRENO | Interim Enhanced Surface Water Treatment Rule | 2022-09-01 |
| ZAPATA COUNTY SAN YGNACIO AND RAMIRENO | Interim Enhanced Surface Water Treatment Rule | 2022-09-01 |
| ZAPATA COUNTY SAN YGNACIO AND RAMIRENO | Interim Enhanced Surface Water Treatment Rule | 2022-09-01 |
| ZAPATA COUNTY SAN YGNACIO AND RAMIRENO | Interim Enhanced Surface Water Treatment Rule | 2022-09-01 |
| ZAPATA COUNTY SAN YGNACIO AND RAMIRENO | Interim Enhanced Surface Water Treatment Rule | 2022-06-01 |
| ZAPATA COUNTY SAN YGNACIO AND RAMIRENO | Interim Enhanced Surface Water Treatment Rule | 2022-06-01 |
| ZAPATA COUNTY SAN YGNACIO AND RAMIRENO | Interim Enhanced Surface Water Treatment Rule | 2022-06-01 |
| ZAPATA COUNTY SAN YGNACIO AND RAMIRENO | Interim Enhanced Surface Water Treatment Rule | 2022-06-01 |
| ZAPATA COUNTY SAN YGNACIO AND RAMIRENO | Interim Enhanced Surface Water Treatment Rule | 2022-06-01 |
| ZAPATA COUNTY SAN YGNACIO AND RAMIRENO | Interim Enhanced Surface Water Treatment Rule | 2022-06-01 |
| ZAPATA COUNTY SAN YGNACIO AND RAMIRENO | Interim Enhanced Surface Water Treatment Rule | 2022-06-01 |
| ZAPATA COUNTY SAN YGNACIO AND RAMIRENO | Interim Enhanced Surface Water Treatment Rule | 2022-06-01 |
| ZAPATA COUNTY SAN YGNACIO AND RAMIRENO | Interim Enhanced Surface Water Treatment Rule | 2022-05-01 |
| ZAPATA COUNTY SAN YGNACIO AND RAMIRENO | Interim Enhanced Surface Water Treatment Rule | 2022-05-01 |
| ZAPATA COUNTY SAN YGNACIO AND RAMIRENO | Interim Enhanced Surface Water Treatment Rule | 2022-05-01 |
| ZAPATA COUNTY SAN YGNACIO AND RAMIRENO | Interim Enhanced Surface Water Treatment Rule | 2022-05-01 |
| ZAPATA COUNTY SAN YGNACIO AND RAMIRENO | Interim Enhanced Surface Water Treatment Rule | 2022-05-01 |
| ZAPATA COUNTY SAN YGNACIO AND RAMIRENO | Interim Enhanced Surface Water Treatment Rule | 2022-05-01 |
What are Zapata's health-based records for?
Zapata's health-based violation records carry 5 distinct EPA codes: some name a substance, others the drinking-water rule that was breached. Counts are records on file in the EPA SDWIS extract, not current test results.
| Contaminant | Records | Systems |
|---|---|---|
| Interim Enhanced Surface Water Treatment Rule | 40 | 2 |
| Tthm | 23 | 2 |
| Revised Total Coliform Rule | 4 | 1 |
| Total Haloacetic Acids (HAA5) | 3 | 1 |
| Lead and Copper Rule Revisions | 2 | 2 |
Frequently Asked Questions
What does EPA SDWIS list for drinking water in Zapata, Texas? ▼
How many water violations does Zapata have in this EPA extract? ▼
What contaminants were found in Zapata water? ▼
How many water systems serve Zapata? ▼
Where does Zapata get its drinking water? ▼
How does Zapata compare in Texas?
Of the 1,232 Texas places with at least one community water system on file, Zapata ranks #196 by number of systems (4).
Either side of it: Wills Point (4), Woodville (4), Zavalla (4), Alba (3)
About This Data
Figures here are the current EPA SDWIS extract joined to the 4 community water systems whose service area lists Zapata, ranked against the 1,232 Texas places with at least one system on file. Data current as of 2026-08-25.
Water system data comes from the EPA's Safe Drinking Water Information System (SDWIS). PlainEnviro's violation fetch is restricted upstream to records EPA flags as health-based and then joined to active community water systems. Monitoring and reporting violations are not included.
A health-based violation row in this extract is a historical EPA registry entry. It does not describe water delivered today or current compliance status. Many records are later resolved, and public water systems notify customers when required. For current conditions, contact your local water utility or the state drinking water program.
TRI facility data comes from the EPA Toxic Release Inventory. Facilities shown are those that self-report to the TRI program. PlainEnviro presents this data without advocacy framing.
Read our methodology - how this data is sourced, computed, and verified.