Is There PFAS in College Station Tap Water?
College Station, TX: PFBS 3.7 ng/L detected, below the 2,000 ng/L EPA health advisory, in 2024 testing.
4 of 29 PFAS detected
Each result is read against its own reference. None of the detected compounds has a federal limit. PFBA and PFPeA have no federal or state limit and are shown for transparency, not graded.
- PFBSEPA health advisoryPerfluorobutanesulfonic acid3.7ng/LDetected, below its EPA health advisory · sampled 2023-05-23 to 2023-11-02Evidence
- PFHxAState MCL · MichiganPerfluorohexanoic acid5.9ng/LDetected, below its state limit · sampled 2023-05-23 to 2023-11-02Evidence
- PFBANo limitPerfluorobutanoic acid8.9ng/L
No federal or state limit: shown for transparency, not graded.
Detected, no limit · sampled 2023-05-23 to 2023-11-02Evidence - PFPeANo limitPerfluoropentanoic acid5.6ng/L
No federal or state limit: shown for transparency, not graded.
Detected, no limit · sampled 2023-05-23 to 2023-11-02Evidence
- PFOAMCLNot detected
- PFOSMCLNot detected
- PFHxSMCLNot detected
- PFNAMCLNot detected
- HFPO-DA (GenX)MCLNot detected
- PFBS3.7 ng/L
- PFHxA5.9 ng/L
- PFBA8.9 ng/L
- PFPeA5.6 ng/L
- 11Cl-PF3OUdSNot detected
- 4:2 FTSNot detected
- 6:2 FTSNot detected
- 8:2 FTSNot detected
- 9Cl-PF3ONSNot detected
- ADONANot detected
- NEtFOSAANot detected
- NFDHANot detected
- NMeFOSAANot detected
- PFDANot detected
- PFDoANot detected
- PFEESANot detected
- PFHpANot detected
- PFHpSNot detected
- PFMBANot detected
- PFMPANot detected
- PFPeSNot detected
- PFTANot detected
- PFTrDANot detected
- PFUnANot detected
MCL marks the 5 PFAS given a federal limit in EPA's 2024 rule. EPA has proposed rescinding three of those limits; they apply until a final rule.
Results as a table29 results with limit, status, sample date and source
| Contaminant | Result | Limit | Status | Sampled | Source |
|---|---|---|---|---|---|
| Perfluorobutanesulfonic acid (PFBS) | 3.7 ng/L | 2,000 ng/L EPA health advisory (screening, not a legal limit)Screening level, not a legal limit | Within the referenced health-based guidance value | 2023-05-23 to 2023-11-02 | UCMR5 Analytical Results: CITY OF COLLEGE STATION (TX0210002) |
| Perfluorohexanoic acid (PFHxA) | 5.9 ng/L | 400,000 ng/L Michigan EGLE state MCL (strictest US state) | Within a historical reference; current applicability unverified | 2023-05-23 to 2023-11-02 | UCMR5 Analytical Results: CITY OF COLLEGE STATION (TX0210002) |
| Perfluorobutanoic acid (PFBA) | 8.9 ng/L | No federal or state limit; shown for transparency | Detected, no limit | 2023-05-23 to 2023-11-02 | UCMR5 Analytical Results: CITY OF COLLEGE STATION (TX0210002) |
| Perfluoropentanoic acid (PFPeA) | 5.6 ng/L | No federal or state limit; shown for transparency | Detected, no limit | 2023-05-23 to 2023-11-02 | UCMR5 Analytical Results: CITY OF COLLEGE STATION (TX0210002) |
| 11-Chloroeicosafluoro-3-oxaundecane-1-sulfonic acid (11Cl-PF3OUdS) | < 5 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-05-23 to 2023-11-02 | UCMR5 Analytical Results: CITY OF COLLEGE STATION (TX0210002) |
| 1H, 1H, 2H, 2H-perfluorodecane sulfonic acid (8:2 FTS) | < 5 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-05-23 to 2023-11-02 | UCMR5 Analytical Results: CITY OF COLLEGE STATION (TX0210002) |
| 1H, 1H, 2H, 2H-perfluorohexane sulfonic acid (4:2 FTS) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-05-23 to 2023-11-02 | UCMR5 Analytical Results: CITY OF COLLEGE STATION (TX0210002) |
| 1H, 1H, 2H, 2H-perfluorooctane sulfonic acid (6:2 FTS) | < 5 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-05-23 to 2023-11-02 | UCMR5 Analytical Results: CITY OF COLLEGE STATION (TX0210002) |
| 4,8-Dioxa-3H-perfluorononanoic acid (ADONA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-05-23 to 2023-11-02 | UCMR5 Analytical Results: CITY OF COLLEGE STATION (TX0210002) |
| 9-Chlorohexadecafluoro-3-oxanone-1-sulfonic acid (9Cl-PF3ONS) | < 2 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-05-23 to 2023-11-02 | UCMR5 Analytical Results: CITY OF COLLEGE STATION (TX0210002) |
| Hexafluoropropylene oxide dimer acid (HFPO-DA) (GenX chemicals) | < 5 ng/L | 10 ng/L federal MCL (2024) | Not detected above the reporting limit | 2023-05-23 to 2023-11-02 | UCMR5 Analytical Results: CITY OF COLLEGE STATION (TX0210002) |
| N-ethyl perfluorooctanesulfonamidoacetic acid (NEtFOSAA) | < 5 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-05-23 to 2023-11-02 | UCMR5 Analytical Results: CITY OF COLLEGE STATION (TX0210002) |
| N-methyl perfluorooctanesulfonamidoacetic acid (NMeFOSAA) | < 6 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-05-23 to 2023-11-02 | UCMR5 Analytical Results: CITY OF COLLEGE STATION (TX0210002) |
| Nonafluoro-3,6-dioxaheptanoic acid (NFDHA) | < 20 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-05-23 to 2023-11-02 | UCMR5 Analytical Results: CITY OF COLLEGE STATION (TX0210002) |
| Perfluoro (2-ethoxyethane) sulfonic acid (PFEESA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-05-23 to 2023-11-02 | UCMR5 Analytical Results: CITY OF COLLEGE STATION (TX0210002) |
| Perfluoro-3-methoxypropanoic acid (PFMPA) | < 4 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-05-23 to 2023-11-02 | UCMR5 Analytical Results: CITY OF COLLEGE STATION (TX0210002) |
| Perfluoro-4-methoxybutanoic acid (PFMBA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-05-23 to 2023-11-02 | UCMR5 Analytical Results: CITY OF COLLEGE STATION (TX0210002) |
| Perfluorodecanoic acid (PFDA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-05-23 to 2023-11-02 | UCMR5 Analytical Results: CITY OF COLLEGE STATION (TX0210002) |
| Perfluorododecanoic acid (PFDoA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-05-23 to 2023-11-02 | UCMR5 Analytical Results: CITY OF COLLEGE STATION (TX0210002) |
| Perfluoroheptanesulfonic acid (PFHpS) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-05-23 to 2023-11-02 | UCMR5 Analytical Results: CITY OF COLLEGE STATION (TX0210002) |
| Perfluoroheptanoic acid (PFHpA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-05-23 to 2023-11-02 | UCMR5 Analytical Results: CITY OF COLLEGE STATION (TX0210002) |
| Perfluorohexanesulfonic acid (PFHxS) | < 3 ng/L | 10 ng/L federal MCL (2024) | Not detected above the reporting limit | 2023-05-23 to 2023-11-02 | UCMR5 Analytical Results: CITY OF COLLEGE STATION (TX0210002) |
| Perfluorononanoic acid (PFNA) | < 4 ng/L | 10 ng/L federal MCL (2024) | Not detected above the reporting limit | 2023-05-23 to 2023-11-02 | UCMR5 Analytical Results: CITY OF COLLEGE STATION (TX0210002) |
| Perfluorooctanesulfonic acid (PFOS) | < 4 ng/L | 4.0 ng/L federal MCL (2024) | Not detected above the reporting limit | 2023-05-23 to 2023-11-02 | UCMR5 Analytical Results: CITY OF COLLEGE STATION (TX0210002) |
| Perfluorooctanoic acid (PFOA) | < 4 ng/L | 4.0 ng/L federal MCL (2024) | Not detected above the reporting limit | 2023-05-23 to 2023-11-02 | UCMR5 Analytical Results: CITY OF COLLEGE STATION (TX0210002) |
| Perfluoropentanesulfonic acid (PFPeS) | < 4 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-05-23 to 2023-11-02 | UCMR5 Analytical Results: CITY OF COLLEGE STATION (TX0210002) |
| Perfluorotetradecanoic acid (PFTA) | < 8 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-05-23 to 2023-11-02 | UCMR5 Analytical Results: CITY OF COLLEGE STATION (TX0210002) |
| Perfluorotridecanoic acid (PFTrDA) | < 7 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-05-23 to 2023-11-02 | UCMR5 Analytical Results: CITY OF COLLEGE STATION (TX0210002) |
| Perfluoroundecanoic acid (PFUnA) | < 2 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-05-23 to 2023-11-02 | UCMR5 Analytical Results: CITY OF COLLEGE STATION (TX0210002) |
PFOS across 764 cities with a detected value
3,396 more were below the lab's 4 ng/L reporting limit and aren't plotted, and 34 have no result on record. 66 cities above 25 ng/L are grouped in the last bar. A position here is not a verdict on the water.
- CITY OF COLLEGE STATION's water system as a whole, as reported to EPA UCMR 5.
- 29 PFAS compounds, each with its own result.
- Samples taken 2023-05-23 to 2023-11-02.
- The water at your tap. Building plumbing isn't in this record.
- PFAS not listed in the 29 above were not reported in these records.
- Levels since the last sample have not been published.
Test first, then match a certified method.
A tap test can confirm levels at your home before you choose treatment.
- PFBS · detected below the limit
- PFHxA · detected below the limit
- PFBA · detected, no federal or state limit
- PFPeA · detected, no federal or state limit
- Reverse osmosisOpen the method →
- Activated carbon (GAC)Open the method →
- Anion exchangeOpen the method →
Frequently asked
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Is there PFAS in College Station tap water?
In EPA's UCMR 5 testing of CITY OF COLLEGE STATION (2023-05-23 to 2023-11-02): PFBA 8.9 ng/L (no federal or state limit), PFBS 3.7 ng/L (EPA health advisory 2,000), PFHxA 5.9 ng/L (state limit 400,000), PFPeA 5.6 ng/L (no federal or state limit) and the other 25 PFAS tested not detected. "Not detected" means below the lab's reporting limit, not proven zero.
What are the federal PFAS limits?
EPA's 2024 drinking-water rule set maximum contaminant levels of 4.0 ng/L for PFOA and for PFOS, and 10 ng/L for PFHxS, PFNA and HFPO-DA (GenX). In May 2026 EPA proposed keeping the PFOA and PFOS limits, with the option of until 2031 to comply, and rescinding the other three. Until a final rule, all five limits apply. Results above them today are above the limits in force.
How do I remove PFAS from my tap water?
Reverse-osmosis systems and filters certified to NSF/ANSI 53 or 58 for PFOA/PFOS reduction are the proven options at the tap. Check the certifier's listing (NSF, WQA or IAPMO) for the exact model, and replace cartridges on schedule.
- UCMR5 Analytical ResultsUCMR5 Analytical Results: CITY OF COLLEGE STATION (TX0210002)US EPA · 2026-01-15View source ↗
- State SDWIS Compliance RecordLead & Copper Rule 90th-percentile: CITY OF COLLEGE STATION (TX0210002)US EPA SDWIS · 2026-07-09View source ↗