Community Water System · PWS TX2050015
City of Aransas Pass
Operator location Aransas Pass, Texas - larger served population (> 3,309) at 8,088 people served; 93 SDWIS violations on record from surface water sources.
- 8,088
- People served (this PWS)
- 93
- EPA violations (this PWS)
- 10
- Health-based (this PWS)
- 3 PFAS
- UCMR5 (this PWS)
City of Aransas Pass standing, high SDWIS violation third
8,088 people served (SDWIS) - larger served population (> 3,309). Corpus terciles use 29,740 systems serving 500+ (the sitemap cohort). Health-based share 11% is middle-third health share (≤ 23%). UCMR5: middle-third PFAS panel (≤ 4 compounds). Population rank #5,571 of 29,740 among systems serving 500+.
The verdict
City of Aransas Pass sits in the upper third of the sitemap cohort by violation count (93), so the tables below sample a dense compliance trail rather than a near-clean ledger. Population served is large (8,088; larger served population (> 3,309)), so household exposure scale sits behind the violation mix. Health-based share is 11% (middle-third health share (≤ 23%)). UCMR5 detected 3 PFAS compounds (middle-third PFAS panel (≤ 4 compounds)).
- #5,571 of 29,740
- Population · /systems
- #510 of 3,040
- Population · TX
- 93
- Total EPA violations on record
- 11%
- Health-based (MCL / treatment failure)
Population ordinals match the sitemap cohort (systems serving 500+, population_served DESC). See methodology · corpus placement.
3 PFAS "forever chemicals" detected in testing under EPA's UCMR5 monitoring program.
System Details
- System Type
- Community
- Owner Type
- Local
- Connections
- 4,734
- County
- San Patricio
- School/Daycare
- No
- MCL Violations
- 7
- Monitoring Violations
- 70
- Treatment Tech Violations
- 3
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Chlorine | MR | 55 | 2016 |
| Public Notice | Other | 8 | 2025 |
| Coliform (TCR) | MCL | 7 | 2011 |
| Lead and Copper Rule | MR | 6 | 2016 |
| Coliform (TCR) | MR | 5 | 2005 |
| Revised Total Coliform Rule | MON | 4 | 2017 |
| LEAD AND COPPER RULE REVISIONS | TT | 3 | 2024 |
| LEAD AND COPPER RULE REVISIONS | RPT | 3 | 2024 |
Violation Count vs. the National Corpus
City of Aransas Pass has 93 recorded EPA violations, 72% of the 29,740 public water systems serving 500+ people nationwide carry fewer, and 28% carry more. 11% of this system's own violations are health-based (10 of 93), and it ranks #5,571 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)
93 Around the middle fewer violations than 28% 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. 6 of 58 samples detected PFAS.
| Contaminant | Date | Result | MRL | Status |
|---|---|---|---|---|
| PFPeS | 7/15/2025 | <4.00 ppt | 4.00 ppt | Not Detected |
| PFPeA | 7/15/2025 | 5.20 ppt | 3.00 ppt | Detected |
| PFHpS | 7/15/2025 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFOA | 7/15/2025 | <4.00 ppt | 4.00 ppt | Not Detected |
| PFBS | 7/15/2025 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFHpA | 7/15/2025 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFHxS | 7/15/2025 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFNA | 7/15/2025 | <4.00 ppt | 4.00 ppt | Not Detected |
| PFEESA | 7/15/2025 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFOS | 7/15/2025 | <4.00 ppt | 4.00 ppt | Not Detected |
| NFDHA | 7/15/2025 | <20.00 ppt | 20.00 ppt | Not Detected |
| PFDA | 7/15/2025 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFDoA | 7/15/2025 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFHxA | 7/15/2025 | 3.40 ppt | 3.00 ppt | Detected |
| PFUnA | 7/15/2025 | <2.00 ppt | 2.00 ppt | Not Detected |
| 8:2 FTS | 7/15/2025 | <5.00 ppt | 5.00 ppt | Not Detected |
| 11Cl-PF3OUdS | 7/15/2025 | <5.00 ppt | 5.00 ppt | Not Detected |
| PFMPA | 7/15/2025 | <4.00 ppt | 4.00 ppt | Not Detected |
| PFMBA | 7/15/2025 | <3.00 ppt | 3.00 ppt | Not Detected |
| 4:2 FTS | 7/15/2025 | <3.00 ppt | 3.00 ppt | Not Detected |
| 6:2 FTS | 7/15/2025 | <5.00 ppt | 5.00 ppt | Not Detected |
| PFBA | 7/15/2025 | 11.00 ppt | 5.00 ppt | Detected |
| HFPO-DA | 7/15/2025 | <5.00 ppt | 5.00 ppt | Not Detected |
| ADONA | 7/15/2025 | <3.00 ppt | 3.00 ppt | Not Detected |
| 9Cl-PF3ONS | 7/15/2025 | <2.00 ppt | 2.00 ppt | Not Detected |
| NMeFOSAA | 4/14/2025 | <6.00 ppt | 6.00 ppt | Not Detected |
| NEtFOSAA | 4/14/2025 | <5.00 ppt | 5.00 ppt | Not Detected |
| PFTrDA | 4/14/2025 | <7.00 ppt | 7.00 ppt | Not Detected |
| PFTA | 4/14/2025 | <8.00 ppt | 8.00 ppt | Not Detected |
| PFTrDA | 1/27/2025 | <7.00 ppt | 7.00 ppt | Not Detected |
| NMeFOSAA | 1/27/2025 | <6.00 ppt | 6.00 ppt | Not Detected |
| PFOS | 1/27/2025 | <4.00 ppt | 4.00 ppt | Not Detected |
| PFOA | 1/27/2025 | <4.00 ppt | 4.00 ppt | Not Detected |
| PFBS | 1/27/2025 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFTA | 1/27/2025 | <8.00 ppt | 8.00 ppt | Not Detected |
| PFHpA | 1/27/2025 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFHxS | 1/27/2025 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFNA | 1/27/2025 | <4.00 ppt | 4.00 ppt | Not Detected |
| PFDoA | 1/27/2025 | <3.00 ppt | 3.00 ppt | Not Detected |
| PFHxA | 1/27/2025 | 3.20 ppt | 3.00 ppt | Detected |
| PFUnA | 1/27/2025 | <2.00 ppt | 2.00 ppt | Not Detected |
| PFDA | 1/27/2025 | <3.00 ppt | 3.00 ppt | Not Detected |
| 8:2 FTS | 1/27/2025 | <5.00 ppt | 5.00 ppt | Not Detected |
| 9Cl-PF3ONS | 1/27/2025 | <2.00 ppt | 2.00 ppt | Not Detected |
| ADONA | 1/27/2025 | <3.00 ppt | 3.00 ppt | Not Detected |
| HFPO-DA | 1/27/2025 | <5.00 ppt | 5.00 ppt | Not Detected |
| PFBA | 1/27/2025 | 7.00 ppt | 5.00 ppt | Detected |
| NEtFOSAA | 1/27/2025 | <5.00 ppt | 5.00 ppt | Not Detected |
| 4:2 FTS | 1/27/2025 | <3.00 ppt | 3.00 ppt | Not Detected |
| 11Cl-PF3OUdS | 1/27/2025 | <5.00 ppt | 5.00 ppt | Not Detected |
Population served record for City of Aransas Pass
EPA SDWIS lists 8,088 people served and 4,734 connections for this PWS, confirm the service-area footprint on the federal report before comparing to municipal census totals.
Sources: EPA SDWIS · Texas Commission on Environmental Quality (TCEQ) - Drinking Water Watch
Nationwide peers
93 violations · 8,088 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 Aransas Pass
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.