Water Health Check Report
Austin, TX
City Of Austin Water & Wastewater · Surface water source · Colorado River (Lake Austin and Lady Bird Lake)
Concerning — with 6 concerns
City Of Austin Water & Wastewater has 1 contaminant above EPA legal limits and 5 above EWG health guidelines. Lead levels within limits at treatment plant
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Contaminants tested
38 total · 5 above EWG guideline| Contaminant | Level | Status |
|---|---|---|
PFOS (perfluorooctane sulfonate) CAS 1763-23-1 | 4.8 ppt | Above EPA limit |
Total trihalomethanes (TTHMs) CAS Various | 41.7 ppb | Above guideline |
Haloacetic acids (HAA5) CAS Various | 26.1 ppb | Above guideline |
PFHxS (perfluorohexane sulfonic acid) CAS 355-46-4 | 4.8 ppt | Above guideline |
PFBA (perfluorobutanoic acid) CAS 375-22-4 | 6.8 ppt | Above guideline |
PFPeA (perfluoropentanoic acid) CAS 2706-90-3 | 3.5 ppt | Above guideline |
Radium 226+228 CAS Various | 0.80 pCi/L | Within limits |
Nitrate CAS 14797-55-8 | 0.43 ppm | Within limits |
Chromium-6 (hexavalent chromium) CAS 18540-29-9 | 0.06 ppb | Within limits |
Arsenic CAS 7440-38-2 | 0.30 ppb | Within limits |
PFBS (perfluorobutane sulfonic acid) CAS 375-73-5 | 4.3 ppt | Within limits |
PFHxA (perfluorohexanoic acid) CAS 307-24-4 | 3.1 ppt | Within limits |
Chlorine (residual) CAS 7782-50-5 | 2.4 ppm | Within limits |
0.08 NTU | Within limits | |
Copper CAS 7440-50-8 | 0.11 ppm | Within limits |
Fluoride CAS 16984-48-8 | 0.09 ppm | Within limits |
Atrazine CAS 1912-24-9 | ND | Not detected |
Lead CAS 7439-92-1 | ND | Not detected |
HFPO-DA / GenX (hexafluoropropylene oxide dimer acid) CAS 13252-13-6 | ND | Not detected |
ADONA (4,8-dioxa-3H-perfluorononanoic acid) CAS 919005-14-4 | ND | Not detected |
6:2 FTS (6:2 fluorotelomer sulfonic acid) CAS 27619-97-2 | ND | Not detected |
4:2 FTS (4:2 fluorotelomer sulfonic acid) CAS 757124-72-4 | ND | Not detected |
8:2 FTS (8:2 fluorotelomer sulfonic acid) CAS 39108-34-4 | ND | Not detected |
PFPeS (perfluoropentane sulfonic acid) CAS 2706-91-4 | ND | Not detected |
PFHpS (perfluoroheptane sulfonic acid) CAS 375-92-8 | ND | Not detected |
PFHpA (perfluoroheptanoic acid) CAS 375-85-9 | ND | Not detected |
ND | Not detected | |
ND | Not detected | |
ND | Not detected | |
PFDoA (perfluorododecanoic acid) CAS 307-55-1 | ND | Not detected |
PFUnA (perfluoroundecanoic acid) CAS 2058-94-8 | ND | Not detected |
PFDA (perfluorodecanoic acid) CAS 335-76-2 | ND | Not detected |
PFTrDA (perfluorotridecanoic acid) CAS 72629-94-8 | ND | Not detected |
PFOA (perfluorooctanoic acid) CAS 335-67-1 | ND | Not detected |
Lithium CAS 7439-93-2 | ND | Not detected |
ND | Not detected | |
PFNA (perfluorononanoic acid) CAS 375-95-1 | ND | Not detected |
PFTA (perfluorotetradecanoic acid) CAS 376-06-7 | ND | Not detected |
Filter recommendation
6 contaminants above guidelines. Here's what removes them.
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Data sources
Status flags compare detected levels against both EPA legal limits and EWG health-based guidelines—which are stricter and science-derived, independent of political feasibility.