Community Water System · PWS TX1140002
City of Coahoma
Operator location Coahoma, Texas - 74% of 366 violations are health-based (upper-third health share (> 23%)); surface water source; 3,552 served per SDWIS.
- 3,552
- People served (this PWS)
- 366
- EPA violations (this PWS)
- 272
- Health-based (this PWS)
- 2 PFAS
- UCMR5 (this PWS)
City of Coahoma standing, high SDWIS violation third
74% of 366 recorded violations are health-based - upper-third health share (> 23%). Corpus terciles use 29,740 systems serving 500+ (the sitemap cohort). Health-based share 74% is upper-third health share (> 23%). UCMR5: lower-third PFAS panel (≤ 2 compounds). Population rank #9,519 of 29,740 among systems serving 500+.
The verdict
City of Coahoma sits in the upper third of the sitemap cohort by violation count (366), so the tables below sample a dense compliance trail rather than a near-clean ledger. Population served is large (3,552; larger served population (> 3,309)), so household exposure scale sits behind the violation mix. Health-based share is 74% - most of this ledger is MCL or treatment-technique exceedance. UCMR5 detected 2 PFAS compounds (lower-third PFAS panel (≤ 2 compounds)).
- #9,519 of 29,740
- Population · /systems
- #1,133 of 3,040
- Population · TX
- 366
- Total EPA violations on record
- 74%
- Health-based (MCL / treatment failure)
Population ordinals match the sitemap cohort (systems serving 500+, population_served DESC). See methodology · corpus placement.
2 PFAS "forever chemicals" detected in testing under EPA's UCMR5 monitoring program.
System Details
- System Type
- Community
- Owner Type
- Local
- Connections
- 1,387
- County
- Howard
- School/Daycare
- No
- MCL Violations
- 272
- Monitoring Violations
- 59
- Treatment Tech Violations
- 0
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| TTHM | MCL | 271 | 2023 |
| Chlorine | MR | 41 | 2010 |
| Public Notice | Other | 14 | 2023 |
| Lead and Copper Rule | MR | 13 | 2019 |
| Consumer Confidence Rule | Other | 9 | 2023 |
| Revised Total Coliform Rule | MON | 4 | 2019 |
| Coliform (TCR) | Other | 1 | 1993 |
| Coliform (TCR) | MCL | 1 | 1992 |
| Coliform (TCR) | MR | 1 | 1993 |
Violation Count vs. the National Corpus
City of Coahoma has 366 recorded EPA violations, 93% of the 29,740 public water systems serving 500+ people nationwide carry fewer, and 7% carry more. 74% of this system's own violations are health-based (272 of 366), and it ranks #9,519 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)
366 Higher than most more violations than 93% 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
PFAS Testing Results (UCMR5)
Results from EPA's Fifth Unregulated Contaminant Monitoring Rule. 5 of 87 samples detected PFAS.
| Contaminant | Date | Result | MRL | Status |
|---|---|---|---|---|
| PFEESA | 7/22/2025 | <3.00 ppt | 3.00 ppt | Not Detected |
| NEtFOSAA | 7/22/2025 | <5.00 ppt | 5.00 ppt | Not Detected |
| PFTrDA | 7/22/2025 | <7.00 ppt | 7.00 ppt | Not Detected |
| PFTA | 7/22/2025 | <8.00 ppt | 8.00 ppt | Not Detected |
| PFBA | 7/22/2025 | 5.40 ppt | 5.00 ppt | Detected |
| ADONA | 7/22/2025 | <3.00 ppt | 3.00 ppt | Not Detected |
| 11Cl-PF3OUdS | 7/22/2025 | <5.00 ppt | 5.00 ppt | Not Detected |
| PFUnA | 7/22/2025 | <2.00 ppt | 2.00 ppt | Not Detected |
| PFHxA | 7/22/2025 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFDoA | 7/22/2025 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFDA | 7/22/2025 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFHpS | 7/22/2025 | <3.00 ppt | 3.00 ppt | Not Detected |
| NMeFOSAA | 7/22/2025 | <6.00 ppt | 6.00 ppt | Not Detected |
| NFDHA | 7/22/2025 | <20.00 ppt | 20.00 ppt | Not Detected |
| HFPO-DA | 7/22/2025 | <5.00 ppt | 5.00 ppt | Not Detected |
| PFMBA | 7/22/2025 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFPeA | 7/22/2025 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFMPA | 7/22/2025 | <4.00 ppt | 4.00 ppt | Not Detected |
| 8:2 FTS | 7/22/2025 | <5.00 ppt | 5.00 ppt | Not Detected |
| 4:2 FTS | 7/22/2025 | <3.00 ppt | 3.00 ppt | Not Detected |
| 6:2 FTS | 7/22/2025 | <5.00 ppt | 5.00 ppt | Not Detected |
| PFOA | 7/22/2025 | <4.00 ppt | 4.00 ppt | Not Detected |
| PFOS | 7/22/2025 | <4.00 ppt | 4.00 ppt | Not Detected |
| PFNA | 7/22/2025 | <4.00 ppt | 4.00 ppt | Not Detected |
| PFHxS | 7/22/2025 | 3.80 ppt | 3.00 ppt | Detected |
| PFHpA | 7/22/2025 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFBS | 7/22/2025 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFPeS | 7/22/2025 | <4.00 ppt | 4.00 ppt | Not Detected |
| 9Cl-PF3ONS | 7/22/2025 | <2.00 ppt | 2.00 ppt | Not Detected |
| PFPeA | 5/6/2025 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFDA | 5/6/2025 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFDoA | 5/6/2025 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFUnA | 5/6/2025 | <2.00 ppt | 2.00 ppt | Not Detected |
| 9Cl-PF3ONS | 5/6/2025 | <2.00 ppt | 2.00 ppt | Not Detected |
| ADONA | 5/6/2025 | <3.00 ppt | 3.00 ppt | Not Detected |
| HFPO-DA | 5/6/2025 | <5.00 ppt | 5.00 ppt | Not Detected |
| PFBA | 5/6/2025 | 5.20 ppt | 5.00 ppt | Detected |
| 6:2 FTS | 5/6/2025 | <5.00 ppt | 5.00 ppt | Not Detected |
| 4:2 FTS | 5/6/2025 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFOA | 5/6/2025 | <4.00 ppt | 4.00 ppt | Not Detected |
| PFMPA | 5/6/2025 | <4.00 ppt | 4.00 ppt | Not Detected |
| PFHxA | 5/6/2025 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFMBA | 5/6/2025 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFEESA | 5/6/2025 | <3.00 ppt | 3.00 ppt | Not Detected |
| NFDHA | 5/6/2025 | <20.00 ppt | 20.00 ppt | Not Detected |
| PFPeS | 5/6/2025 | <4.00 ppt | 4.00 ppt | Not Detected |
| PFHpS | 5/6/2025 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFOS | 5/6/2025 | <4.00 ppt | 4.00 ppt | Not Detected |
| PFNA | 5/6/2025 | <4.00 ppt | 4.00 ppt | Not Detected |
| PFHxS | 5/6/2025 | <3.00 ppt | 3.00 ppt | Not Detected |
Health-based violations on City of Coahoma
272 health-based rows in the tables above map to MCL or treatment-technique exceedances, verify each contaminant code on the federal SDWIS report for TX1140002.
Sources: EPA SDWIS · Texas Commission on Environmental Quality (TCEQ) - Drinking Water Watch
Nationwide peers
366 violations · 3,552 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 similar served population
Nearest cross-state systems by EPA SDWIS population_served (same 500+ sitemap gate).
What to do with City of Coahoma
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.