Is City of Cedar Park Tap Water Safe? Quality Report

Water source: Surface water
Ownership: Local government
Counties served: Williamson

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.

health-based violations

violations on file

still open

Violation	Type	Status	Period
MCL	Health-based	Resolved	2015-01-01 → 2015-03-31
MCL	Health-based	Resolved	2015-01-01 → 2015-03-31
MCL	Health-based	Resolved	2015-01-01 → 2015-03-31
MCL	Health-based	Resolved	2015-01-01 → 2015-03-31
MCL	Health-based	Resolved	1997-01-01 → 1997-03-31
MCL	Health-based	Resolved	1996-10-01 → 1996-12-31
MCL	Health-based	Resolved	1996-07-01 → 1996-09-30
MCL	Health-based	Resolved	1996-04-01 → 1996-06-30
MCL	Health-based	Resolved	1996-01-01 → 1996-03-31
MCL	Health-based	Archived	1979-06-26 → 1979-07-25

PFAS detected

PFAS are industrial “forever chemicals”. These are the EPA's latest nationwide test results (2023–2025).

Contaminant	Max	Detection rate	Period
Pfba	0.0050 µg/L	1/8	2025

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.

Contaminant	Level vs EPA limit	Detection rate	Source	Period
Bromodichloromethane	25.015 µg/L No EPA limit set worst single sample: 34.8 µg/L	260/260	SYR4	2012–2019
Chloroform	27.1 µg/L No EPA limit set worst single sample: 38 µg/L	260/260	SYR4	2012–2019
Dibromochloromethane	22.225 µg/L No EPA limit set worst single sample: 29.3 µg/L	260/260	SYR4	2012–2019
Dichloroacetic Acid	13.735 µg/L No EPA limit set worst single sample: 16.7 µg/L	252/252	SYR4	2012–2019
TTHM	77.14 µg/L 96% of the EPA limit 80 µg/L worst single sample: 112 µg/L	252/253	SYR4	2012–2019
Total Haloacetic Acids (HAA5)	26.545 µg/L 44% of the EPA limit 60 µg/L worst single sample: 59.3 µg/L	252/252	SYR4	2012–2019
Dibromoacetic Acid	6.55 µg/L No EPA limit set worst single sample: 11 µg/L	251/252	SYR4	2012–2019
Trichloroacetic Acid	8.985 µg/L No EPA limit set worst single sample: 10.4 µg/L	244/252	SYR4	2012–2019
Bromoform	7.3 µg/L No EPA limit set worst single sample: 9.5 µg/L	233/260	SYR4	2012–2019
Copper	721 µg/L 55% of the EPA limit 1300 µg/L worst single sample: 1200 µg/L	187/189	SYR4	2013–2017
Lead	4.448 µg/L 30% of the EPA limit 15 µg/L worst single sample: 23 µg/L	115/189	SYR4	2013–2017
Nitrate	501.5 µg/L 5% of the EPA limit 10000 µg/L worst single sample: 510 µg/L	38/38	SYR4	2012–2019
Monobromoacetic Acid	3.76 µg/L No EPA limit set worst single sample: 4.2 µg/L	33/252	SYR4	2012–2019
Monochloroacetic Acid	7 µg/L No EPA limit set worst single sample: 36.1 µg/L	29/252	SYR4	2012–2019
Lead	0.0040 mg/L 26% of the EPA limit 0.0150 mg/L	17/17	LCR	2023
Fluoride	733 µg/L 18% of the EPA limit 4000 µg/L worst single sample: 740 µg/L	8/8	SYR4	2012–2019
Barium	67.61 µg/L 3.4% of the EPA limit 2000 µg/L worst single sample: 68.3 µg/L	7/7	SYR4	2013–2019
Cyanide	49.5 µg/L 25% of the EPA limit 200 µg/L worst single sample: 50 µg/L	2/6	SYR4	2014–2019
Arsenic	2.35 µg/L 24% of the EPA limit 10 µg/L	1/7	SYR4	2013–2019
Chromium	1.03 µg/L 1% of the EPA limit 100 µg/L	1/7	SYR4	2013–2019
Gross Beta Particle Activity	4.2 pCi/L No EPA limit set	1/1	SYR4	2017
Selenium	3.98 µg/L 8% of the EPA limit 50 µg/L	1/7	SYR4	2013–2019

84 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 DibromideEndrinEthylbenzeneGross Alpha, Excl. Radon And UHexachlorobenzeneHfpo-DaHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoMercuryMethoxychlorNetfosaaNfdhaNmefosaaNitriteOxamylPFBSPfdaPfdoaPfeesaPfhpaPfhpsPfhxaPFHXSPfmbaPfmpaPFNAPFOAPFOSPfpeaPfpesPftaPftrdaPfunaPentachlorophenolPicloramSimazineStyreneTetrachloroethyleneThallium, TotalTolueneToxapheneTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneLithiumO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact: PENNIMAN-MORIN, JIM
Phone: 512-923-4472
Email: [email protected]

Frequently asked questions about City of Cedar Park

Is City of Cedar Park tap water safe to drink?

EPA monitoring detected 23 contaminants in City of Cedar Park'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 Cedar Park'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 Cedar Park serve?

City of Cedar Park reports serving 86,939 people in Texas, per its EPA record.

Has City of Cedar Park had any water quality violations?

The EPA has 29 violations on file for City of Cedar Park, of which 10 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.