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Tap water quality report

City of Austin Water & Wastewater

EPA monitoring tested this supplier for 110 contaminants and detected 29. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

110
contaminants tested
29
detected
1,115,323
people served
22
health-based violations
Texas rankingsLead in TexasPFAS in Texas
Water source
Surface water
Ownership
Local government
Counties served
Travis

Compliance record

Formal violations the EPA has on file for this supplier. A health-based violation means a contaminant limit or a required treatment was breached; the rest are monitoring or reporting failures — still violations, but not a measured health risk.

22
health-based violations
26
violations on file
0
still open
ViolationTypeStatusPeriod
TT Health-based Resolved 2022-02-01 → 2022-02-28
TT Health-based Resolved 2022-02-01 → 2022-02-28
TT Health-based Resolved 2022-02-01 → 2022-02-28
TT Health-based Resolved 2022-02-01 → 2022-02-28
TT Health-based Resolved 2022-02-01 → 2022-02-28
TT Health-based Resolved 2018-10-01 → 2018-10-31
TT Health-based Resolved 2018-10-01 → 2018-10-31
TT Health-based Resolved 2018-10-01 → 2018-10-31
TT Health-based Resolved 2018-10-01 → 2018-10-31
TT Health-based Resolved 2018-10-01 → 2018-10-31

PFAS detected

PFAS are industrial “forever chemicals”. These are the EPA's latest nationwide test results (2023–2025).
ContaminantMaxDetection ratePeriod
PFHXS 0.0062 µg/L 6/12 2024
Pfba 0.0084 µg/L 4/12 2024
PFBS 0.0051 µg/L 4/12 2024
Pfpea 0.0041 µg/L 4/12 2024
Pfhxa 0.0033 µg/L 2/12 2024
PFOS 0.0048 µg/L 2/12 2024

Other contaminants detected

Each bar shows the measured level as a share of the EPA limit: green is well under, amber is close to it, red is over. For lead and copper the limit applies to exactly the 90th-percentile figure shown, so red there means a real exceedance. For everything else the limit applies to a running annual average while the figure is the 95th percentile of this system's samples — over 100% is worth reading, but is not by itself a violation. Where a single sample came in higher than that percentile, it is noted under the bar. Formal violations are listed separately.
ContaminantLevel vs EPA limitDetection rateSourcePeriod
Bromodichloromethane
18.885 µg/L
No EPA limit set
worst single sample: 23.2 µg/L
244/244 SYR4 2012–2019
Chloroform
30.285 µg/L
No EPA limit set
worst single sample: 78.1 µg/L
244/244 SYR4 2012–2019
Dibromochloromethane
12.985 µg/L
No EPA limit set
worst single sample: 21.4 µg/L
244/244 SYR4 2012–2019
Dichloroacetic Acid
15.41 µg/L
No EPA limit set
worst single sample: 27.8 µg/L
220/220 SYR4 2012–2019
TTHM
59.045 µg/L 74%
of the EPA limit 80 µg/L
worst single sample: 101 µg/L
220/222 SYR4 2012–2019
Total Haloacetic Acids (HAA5)
23.91 µg/L 40%
of the EPA limit 60 µg/L
worst single sample: 44.7 µg/L
220/220 SYR4 2012–2019
Trichloroacetic Acid
7.07 µg/L
No EPA limit set
worst single sample: 18.7 µg/L
219/220 SYR4 2012–2019
Dibromoacetic Acid
4.1 µg/L
No EPA limit set
worst single sample: 7.7 µg/L
193/220 SYR4 2012–2019
Bromoform
3.355 µg/L
No EPA limit set
worst single sample: 5.7 µg/L
130/244 SYR4 2012–2019
Copper
9.6 µg/L 0.7%
of the EPA limit 1300 µg/L
worst single sample: 15.7 µg/L
95/163 SYR4 2012–2018
Nitrate
560 µg/L 5.6%
of the EPA limit 10000 µg/L
worst single sample: 570 µg/L
46/46 SYR4 2012–2019
Monochloroacetic Acid
3.525 µg/L
No EPA limit set
worst single sample: 4.2 µg/L
36/220 SYR4 2012–2019
Fluoride
820 µg/L 21%
of the EPA limit 4000 µg/L
worst single sample: 840 µg/L
21/21 SYR4 2012–2019
Barium
11.91 µg/L 0.6%
of the EPA limit 2000 µg/L
worst single sample: 12 µg/L
19/19 SYR4 2013–2019
Cyanide
132.5 µg/L 66%
of the EPA limit 200 µg/L
worst single sample: 140 µg/L
16/17 SYR4 2014–2019
Lead
0.0 mg/L 0%
of the EPA limit 0.0150 mg/L
 16/16 LCR 2024
Lead
3.923 µg/L 26%
of the EPA limit 15 µg/L
worst single sample: 3.93 µg/L
8/163 SYR4 2012–2018
Monobromoacetic Acid
1.43 µg/L
No EPA limit set
worst single sample: 1.5 µg/L
8/220 SYR4 2012–2019
Chromium
0.4283 µg/L 0.4%
of the EPA limit 100 µg/L
worst single sample: 0.4290 µg/L
2/19 SYR4 2013–2019
Diquat
4.03 µg/L 20%
of the EPA limit 20 µg/L
worst single sample: 4.2 µg/L
2/7 SYR4 2015–2019
Simazine
0.0800 µg/L 2%
of the EPA limit 4 µg/L
 2/24 SYR4 2012–2019
Arsenic
0.9340 µg/L 9.3%
of the EPA limit 10 µg/L
 1/19 SYR4 2013–2019
Gross Beta Particle Activity
4.8 pCi/L
No EPA limit set
 1/4 SYR4 2015–2018
81 contaminants tested, none detected
1,1,1-Trichloroethane1,1,2-Trichloroethane1,1-Dichloroethylene1,2,4-Trichlorobenzene1,2-DIBROMO-3-CHLOROPROPANE1,2-Dichloroethane1,2-Dichloropropane11Cl-PF3OUdS2,4,5-TP2,4-D4:2 Fts6:2 Fts8:2 Fts9Cl-PF3ONSAdonaAntimony, TotalAsbestosAtrazineBhc-GammaBenzeneBenzo(A)PyreneBeryllium, TotalChlorobenzeneCadmiumCarbofuranCarbon TetrachlorideChlordaneCombined UraniumDichloromethaneDalaponDi(2-ethylhexyl) AdipateDi(2-ethylhexyl) PhthalateDinosebEthylene DibromideEndothallEndrinEthylbenzeneGlyphosateGross Alpha, Excl. Radon And UHexachlorobenzeneHfpo-DaHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoMercuryMethoxychlorNetfosaaNfdhaNmefosaaNitriteOxamylPfdaPfdoaPfeesaPfhpaPfhpsPfmbaPfmpaPFNAPFOAPfpesPftaPftrdaPfunaPentachlorophenolPicloramSeleniumStyreneTetrachloroethyleneThallium, TotalTolueneToxapheneTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneLithiumO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact
WATSON, KIRK
Phone
512-972-0108

Frequently asked questions about City of Austin Water & Wastewater

Is City of Austin Water & Wastewater tap water safe to drink?

EPA monitoring detected 29 contaminants in City of Austin Water & Wastewater's water. A detection isn't the same as a violation — most levels are within federal limits. See each level and source above, and the utility's annual Consumer Confidence Report for its official compliance status.

What contaminants were detected in City of Austin Water & Wastewater's water?

EPA monitoring detected Bromodichloromethane, Chloroform, Dibromochloromethane, Dichloroacetic Acid, TTHM, and others. The full list with the level and data source for each is above.

How many people does City of Austin Water & Wastewater serve?

City of Austin Water & Wastewater reports serving 1,115,323 people in Texas, per its EPA record.

Has City of Austin Water & Wastewater had any water quality violations?

The EPA has 26 violations on file for City of Austin Water & Wastewater, of which 22 are health-based (a contaminant limit or required treatment was breached) and 0 remain open. The rest are monitoring or reporting failures.

Where does this data come from?

Every figure is official EPA drinking-water monitoring — the Lead & Copper Rule, the UCMR-5 nationwide testing program, and the EPA Six-Year Review — not our own testing. Each number is labelled with its source and period.