Community Water System · PWS TX1740012
Libby WSC
Operator location Martinsville, Texas - 59% of 90 violations are health-based (upper-third health share (> 23%)); groundwater source; 519 served per SDWIS.
- 519
- People served (this PWS)
- 90
- EPA violations (this PWS)
- 53
- Health-based (this PWS)
- Untested
- UCMR5 (this PWS)
Libby WSC standing, high SDWIS violation third
59% of 90 recorded violations are health-based - upper-third health share (> 23%). Corpus terciles use 29,740 systems serving 500+ (the sitemap cohort). Health-based share 59% is upper-third health share (> 23%). Population rank #28,193 of 29,740 among systems serving 500+.
The verdict
Libby WSC sits in the upper third of the sitemap cohort by violation count (90), so the tables below sample a dense compliance trail rather than a near-clean ledger. Population served is smaller (519; smaller served population (≤ 999)), so each violation row represents a compact service footprint. Health-based share is 59% - most of this ledger is MCL or treatment-technique exceedance. No UCMR5 PFAS test appears for this system in this extract.
- #28,193 of 29,740
- Population · /systems
- #2,967 of 3,040
- Population · TX
- 90
- Total EPA violations on record
- 59%
- 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
- 210
- County
- Nacogdoches
- School/Daycare
- No
- MCL Violations
- 49
- Monitoring Violations
- 15
- Treatment Tech Violations
- 4
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| TTHM | MCL | 49 | 2009 |
| Lead and Copper Rule | MR | 8 | 2020 |
| Public Notice | Other | 4 | 2025 |
| LEAD AND COPPER RULE REVISIONS | RPT | 4 | 2024 |
| LEAD AND COPPER RULE REVISIONS | TT | 4 | 2024 |
| E. COLI | MR | 4 | 2017 |
| Chlorine | MR | 3 | 2008 |
Violation Count vs. the National Corpus
Libby WSC has 90 recorded EPA violations, 71% of the 29,740 public water systems serving 500+ people nationwide carry fewer, and 29% carry more. 59% of this system's own violations are health-based (53 of 90), and it ranks #28,193 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)
90 Around the middle fewer violations than 29% 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 Libby WSC
53 health-based rows in the tables above map to MCL or treatment-technique exceedances, verify each contaminant code on the federal SDWIS report for TX1740012.
Sources: EPA SDWIS · Texas Commission on Environmental Quality (TCEQ) - Drinking Water Watch
Nationwide peers
90 violations · 519 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 Libby WSC
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.