Community Water System · PWS TX0030030
City of Zavalla
Operator location Zavalla, Texas - 56% of 467 violations are health-based (upper-third health share (> 23%)); surface water source; 880 served per SDWIS.
- 880
- People served (this PWS)
- 467
- EPA violations (this PWS)
- 261
- Health-based (this PWS)
- Untested
- UCMR5 (this PWS)
City of Zavalla standing, high SDWIS violation third
56% of 467 recorded violations are health-based - upper-third health share (> 23%). Corpus terciles use 29,740 systems serving 500+ (the sitemap cohort). Health-based share 56% is upper-third health share (> 23%). Population rank #21,421 of 29,740 among systems serving 500+.
The verdict
City of Zavalla sits in the upper third of the sitemap cohort by violation count (467), so the tables below sample a dense compliance trail rather than a near-clean ledger. Population served is smaller (880; smaller served population (≤ 999)), so each violation row represents a compact service footprint. Health-based share is 56% - most of this ledger is MCL or treatment-technique exceedance. No UCMR5 PFAS test appears for this system in this extract.
- #21,421 of 29,740
- Population · /systems
- #2,413 of 3,040
- Population · TX
- 467
- Total EPA violations on record
- 56%
- Health-based (MCL / treatment failure)
Population ordinals match the sitemap cohort (systems serving 500+, population_served DESC). See methodology · corpus placement.
System Details
- System Type
- Community
- Owner Type
- Local
- Connections
- 691
- County
- Angelina
- School/Daycare
- No
- MCL Violations
- 165
- Monitoring Violations
- 143
- Treatment Tech Violations
- 96
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| TTHM | MCL | 157 | 2023 |
| Interim Enhanced Surface Water Treatment Rule | MR | 58 | 2025 |
| Surface Water Treatment Rule | MR | 49 | 2024 |
| Interim Enhanced Surface Water Treatment Rule | TT | 49 | 2023 |
| Public Notice | Other | 36 | 2025 |
| Long Term 2 Enhanced Surface Water Treatment Rule | TT | 25 | 2022 |
| Surface Water Treatment Rule | TT | 20 | 2023 |
| Lead and Copper Rule | MR | 12 | 2025 |
| Revised Total Coliform Rule | MON | 12 | 2025 |
| Total Haloacetic Acids (HAA5) | MCL | 8 | 2023 |
| Consumer Confidence Rule | Other | 5 | 2022 |
| TTHM | MR | 4 | 2022 |
| Total Haloacetic Acids (HAA5) | MR | 4 | 2022 |
| Chlorine | MR | 4 | 2008 |
| LEAD AND COPPER RULE REVISIONS | TT | 2 | 2024 |
| LEAD AND COPPER RULE REVISIONS | RPT | 2 | 2024 |
Violation Count vs. the National Corpus
City of Zavalla has 467 recorded EPA violations, 95% of the 29,740 public water systems serving 500+ people nationwide carry fewer, and 5% carry more. 56% of this system's own violations are health-based (261 of 467), and it ranks #21,421 of 29,740 by population served among that same cohort.
EPA violations vs. the national water-system corpus
Public water systems serving 500+ people (EPA SDWIS)
467 Higher than most more violations than 95% of 29,740 water systems
the national water-system corpus, bucketed by value
Each bar is a band; taller bars hold more water systems. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count and share, and where it sits relative to this entry.
Source EPA SDWIS · 2026-05-15
Health-based violations on City of Zavalla
261 health-based rows in the tables above map to MCL or treatment-technique exceedances, verify each contaminant code on the federal SDWIS report for TX0030030.
Sources: EPA SDWIS · Texas Commission on Environmental Quality (TCEQ) - Drinking Water Watch
Nationwide peers
467 violations · 880 served: nearest cross-state SDWIS matches.
Cross-state systems with comparable violation load
Nearest cross-state community systems (500+ served) by total SDWIS violations on record.
Cross-state systems with smaller service footprints
Nearest cross-state systems by EPA SDWIS population_served (same 500+ sitemap gate).
What to do with City of Zavalla
Use this system's EPA-reported record as a starting filter, not a final verdict.
- See how every tracked system in Texas compares on the same EPA violation measures. Texas systems
- Check whether PFAS was detected at this system under UCMR5 testing. PFAS guide
- Find and compare another public water system by name or PWSID. Search systems
EPA SDWIS and UCMR5 figures are informational only, not a substitute for a certified lab test of your own tap water.