HEATHERLOCH MUD
PWS ID: TX1010548 · HOUSTON, Texas 77046-0900
PFAS Detected
5 PFAS "forever chemicals" detected in testing under EPA's UCMR5 monitoring program.
Population Served
6,612
Total Violations
31
Health-Based Violations
5
Water Source
Surface Water
System Details
- System Type
- Community
- Owner Type
- Local
- Connections
- 2,204
- County
- Harris
- School/Daycare
- No
- MCL Violations
- 5
- Monitoring Violations
- 19
- Treatment Tech Violations
- 0
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Coliform (TCR) | MR | 17 | 2016 |
| Coliform (TCR) | MCL | 5 | 2009 |
| Public Notice | Other | 5 | 2016 |
| Lead and Copper Rule | MR | 2 | 2010 |
| Consumer Confidence Rule | Other | 2 | 2017 |
PFAS Testing Results (UCMR5)
Results from EPA's Fifth Unregulated Contaminant Monitoring Rule. 9 of 120 samples detected PFAS.
| Contaminant | Date | Result | MRL | Status |
|---|---|---|---|---|
| NEtFOSAA | 9/18/2023 | <0.005 µg/L | 0.005 µg/L | Not Detected |
| lithium | 9/18/2023 | <9 µg/L | 9 µg/L | Not Detected |
| PFTrDA | 9/18/2023 | <0.007 µg/L | 0.007 µg/L | Not Detected |
| NMeFOSAA | 9/18/2023 | <0.006 µg/L | 0.006 µg/L | Not Detected |
| PFTA | 9/18/2023 | <0.008 µg/L | 0.008 µg/L | Not Detected |
| PFDA | 8/29/2023 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFOA | 8/29/2023 | <0.004 µg/L | 0.004 µg/L | Not Detected |
| PFOS | 8/29/2023 | <0.004 µg/L | 0.004 µg/L | Not Detected |
| PFNA | 8/29/2023 | <0.004 µg/L | 0.004 µg/L | Not Detected |
| PFHxS | 8/29/2023 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFBS | 8/29/2023 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFPeA | 8/29/2023 | 0.0072 µg/L | 0.003 µg/L | Detected |
| PFDoA | 8/29/2023 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFHpA | 8/29/2023 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFMPA | 8/29/2023 | <0.004 µg/L | 0.004 µg/L | Not Detected |
| PFHpS | 8/29/2023 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFPeS | 8/29/2023 | <0.004 µg/L | 0.004 µg/L | Not Detected |
| NFDHA | 8/29/2023 | <0.02 µg/L | 0.02 µg/L | Not Detected |
| 8:2 FTS | 8/29/2023 | <0.005 µg/L | 0.005 µg/L | Not Detected |
| PFMBA | 8/29/2023 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFHxA | 8/29/2023 | 0.0045 µg/L | 0.003 µg/L | Detected |
| 4:2 FTS | 8/29/2023 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| 6:2 FTS | 8/29/2023 | 0.0063 µg/L | 0.005 µg/L | Detected |
| PFBA | 8/29/2023 | 0.0069 µg/L | 0.005 µg/L | Detected |
| HFPO-DA | 8/29/2023 | <0.005 µg/L | 0.005 µg/L | Not Detected |
| ADONA | 8/29/2023 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| 9Cl-PF3ONS | 8/29/2023 | <0.002 µg/L | 0.002 µg/L | Not Detected |
| 11Cl-PF3OUdS | 8/29/2023 | <0.005 µg/L | 0.005 µg/L | Not Detected |
| PFUnA | 8/29/2023 | <0.002 µg/L | 0.002 µg/L | Not Detected |
| PFEESA | 8/29/2023 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| NMeFOSAA | 6/13/2023 | <0.006 µg/L | 0.006 µg/L | Not Detected |
| lithium | 6/13/2023 | <9 µg/L | 9 µg/L | Not Detected |
| NEtFOSAA | 6/13/2023 | <0.005 µg/L | 0.005 µg/L | Not Detected |
| PFTA | 6/13/2023 | <0.008 µg/L | 0.008 µg/L | Not Detected |
| PFTrDA | 6/13/2023 | <0.007 µg/L | 0.007 µg/L | Not Detected |
| PFTA | 3/14/2023 | <0.008 µg/L | 0.008 µg/L | Not Detected |
| PFNA | 3/14/2023 | <0.004 µg/L | 0.004 µg/L | Not Detected |
| PFHxS | 3/14/2023 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFBS | 3/14/2023 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| NFDHA | 3/14/2023 | <0.02 µg/L | 0.02 µg/L | Not Detected |
| PFEESA | 3/14/2023 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFMBA | 3/14/2023 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFOS | 3/14/2023 | <0.004 µg/L | 0.004 µg/L | Not Detected |
| PFMPA | 3/14/2023 | <0.004 µg/L | 0.004 µg/L | Not Detected |
| PFHpA | 3/14/2023 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFTrDA | 3/14/2023 | <0.007 µg/L | 0.007 µg/L | Not Detected |
| NEtFOSAA | 3/14/2023 | <0.005 µg/L | 0.005 µg/L | Not Detected |
| NMeFOSAA | 3/14/2023 | <0.006 µg/L | 0.006 µg/L | Not Detected |
| PFPeA | 3/14/2023 | <0.003 µg/L | 0.003 µg/L | Not Detected |
| PFBA | 3/14/2023 | <0.005 µg/L | 0.005 µg/L | Not Detected |
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025.
PFAS data from EPA UCMR5 monitoring program (2023-2025).
This data is provided for informational purposes only.