Community Water System · PWS TX0470015
Upper Leon River MWD
Operator location Comanche, Texas - 51% of 79 violations are health-based (upper-third health share (> 23%)); surface water source; 2,919 served per SDWIS.
- 2,919
- People served (this PWS)
- 79
- EPA violations (this PWS)
- 40
- Health-based (this PWS)
- Untested
- UCMR5 (this PWS)
Upper Leon River MWD standing, high SDWIS violation third
51% of 79 recorded violations are health-based - upper-third health share (> 23%). Corpus terciles use 29,740 systems serving 500+ (the sitemap cohort). Health-based share 51% is upper-third health share (> 23%). Population rank #10,864 of 29,740 among systems serving 500+.
The verdict
Upper Leon River MWD sits in the upper third of the sitemap cohort by violation count (79), so the tables below sample a dense compliance trail rather than a near-clean ledger. Population served is mid-pack at 2,919 (mid served population (≤ 3,309)). Health-based share is 51% - most of this ledger is MCL or treatment-technique exceedance. No UCMR5 PFAS test appears for this system in this extract.
- #10,864 of 29,740
- Population · /systems
- #1,312 of 3,040
- Population · TX
- 79
- Total EPA violations on record
- 51%
- 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
- 7,901
- County
- Comanche
- School/Daycare
- No
- MCL Violations
- 36
- Monitoring Violations
- 28
- Treatment Tech Violations
- 4
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| TTHM | MCL | 36 | 2024 |
| Interim Enhanced Surface Water Treatment Rule | MR | 19 | 2020 |
| Lead and Copper Rule | MR | 8 | 2021 |
| Public Notice | Other | 6 | 2024 |
| Interim Enhanced Surface Water Treatment Rule | TT | 4 | 2021 |
| Coliform (TCR) | MR | 1 | 1991 |
Violation Count vs. the National Corpus
Upper Leon River MWD has 79 recorded EPA violations, 68% of the 29,740 public water systems serving 500+ people nationwide carry fewer, and 32% carry more. 51% of this system's own violations are health-based (40 of 79), and it ranks #10,864 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)
79 Around the middle fewer violations than 32% 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 Upper Leon River MWD
40 health-based rows in the tables above map to MCL or treatment-technique exceedances, verify each contaminant code on the federal SDWIS report for TX0470015.
Sources: EPA SDWIS · Texas Commission on Environmental Quality (TCEQ) - Drinking Water Watch
Nationwide peers
79 violations · 2,919 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 near this population served
Nearest cross-state systems by EPA SDWIS population_served (same 500+ sitemap gate).
What to do with Upper Leon River MWD
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.