Is Travis County Mud 4 Tap Water Safe? Quality Report

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.

health-based violations

violations on file

still open

Violation	Type	Status	Period
MR	Monitoring	Resolved	2025-09-29
MR	Monitoring	Resolved	2025-09-29
MR	Monitoring	Resolved	2025-04-01
MR	Monitoring	Resolved	2025-04-01
MR	Monitoring	Resolved	2024-07-01 → 2024-12-31
MR	Monitoring	Resolved	2024-07-01 → 2024-12-31
MR	Monitoring	Resolved	2024-07-01 → 2024-12-31
MR	Monitoring	Resolved	2024-07-01 → 2024-12-31
MON	Monitoring	Resolved	2024-05-01 → 2024-05-31
MON	Monitoring	Resolved	2024-05-01 → 2024-05-31

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	26.32 µg/L No EPA limit set worst single sample: 29.8 µg/L	45/45	SYR4	2012–2019
Chloroform	32.56 µg/L No EPA limit set worst single sample: 38.2 µg/L	45/45	SYR4	2012–2019
Dibromochloromethane	18.92 µg/L No EPA limit set worst single sample: 29.8 µg/L	33/45	SYR4	2012–2019
Dichloroacetic Acid	16.655 µg/L No EPA limit set worst single sample: 24.2 µg/L	30/30	SYR4	2012–2019
TTHM	73.85 µg/L 92% of the EPA limit 80 µg/L worst single sample: 83.8 µg/L	30/31	SYR4	2012–2019
Total Haloacetic Acids (HAA5)	36.49 µg/L 61% of the EPA limit 60 µg/L worst single sample: 52.6 µg/L	30/30	SYR4	2012–2019
Nitrate	841.5 µg/L 8.4% of the EPA limit 10000 µg/L worst single sample: 950 µg/L	28/28	SYR4	2012–2019
Trichloroacetic Acid	14.75 µg/L No EPA limit set worst single sample: 23.3 µg/L	20/30	SYR4	2012–2019
Dibromoacetic Acid	5.16 µg/L No EPA limit set worst single sample: 6.6 µg/L	19/30	SYR4	2012–2019
Bromoform	5.66 µg/L No EPA limit set worst single sample: 6.3 µg/L	17/45	SYR4	2012–2019
Copper	324.8 µg/L 25% of the EPA limit 1300 µg/L worst single sample: 344 µg/L	17/24	SYR4	2012–2018
Barium	70.88 µg/L 3.5% of the EPA limit 2000 µg/L worst single sample: 74.3 µg/L	13/13	SYR4	2012–2019
Fluoride	244 µg/L 6.1% of the EPA limit 4000 µg/L worst single sample: 250 µg/L	13/13	SYR4	2012–2019
Cyanide	116.5 µg/L 58% of the EPA limit 200 µg/L worst single sample: 120 µg/L	8/11	SYR4	2014–2019
Lead	13.046 µg/L 87% of the EPA limit 15 µg/L worst single sample: 17.9 µg/L	7/24	SYR4	2012–2018
Monochloroacetic Acid	5.38 µg/L No EPA limit set worst single sample: 5.8 µg/L	4/30	SYR4	2012–2019
Di(2-ethylhexyl) Phthalate	2.181 µg/L 36% of the EPA limit 6 µg/L worst single sample: 2.19 µg/L	3/17	SYR4	2012–2019
Lead	0.0 mg/L 0% of the EPA limit 0.0150 mg/L	3/3	LCR	2025
Arsenic	2.1855 µg/L 22% of the EPA limit 10 µg/L worst single sample: 2.19 µg/L	2/13	SYR4	2012–2019
Atrazine	0.1480 µg/L 4.9% of the EPA limit 3 µg/L worst single sample: 0.1500 µg/L	2/17	SYR4	2012–2019
Monobromoacetic Acid	1.38 µg/L No EPA limit set worst single sample: 1.4 µg/L	2/30	SYR4	2012–2019
Chromium	0.6360 µg/L 0.6% of the EPA limit 100 µg/L	1/13	SYR4	2012–2019
Gross Beta Particle Activity	5.2 pCi/L No EPA limit set	1/3	SYR4	2015–2018
Selenium	3.79 µg/L 7.6% of the EPA limit 50 µg/L	1/13	SYR4	2012–2019
Simazine	0.0500 µg/L 1.3% of the EPA limit 4 µg/L	1/17	SYR4	2012–2019
Xylenes, Total	0.6000 µg/L 0% of the EPA limit 10000 µg/L	1/15	SYR4	2012–2019

51 contaminants tested, none detected

1,1,1-Trichloroethane1,1,2-Trichloroethane1,1-Dichloroethylene1,2,4-Trichlorobenzene1,2-DIBROMO-3-CHLOROPROPANE1,2-Dichloroethane1,2-Dichloropropane2,4,5-TP2,4-DAntimony, TotalAsbestosBhc-GammaBenzeneBenzo(A)PyreneBeryllium, TotalChlorobenzeneCadmiumCarbofuranCarbon TetrachlorideChlordaneCombined UraniumDichloromethaneDalaponDi(2-ethylhexyl) AdipateDinosebEthylene DibromideEndrinEthylbenzeneGross Alpha, Excl. Radon And UHexachlorobenzeneHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoMercuryMethoxychlorNitriteOxamylPentachlorophenolPicloramStyreneTetrachloroethyleneThallium, TotalTolueneToxapheneTrichloroethyleneVinyl Chloridecis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact: CONNOLLY, DOUG
Phone: 512-423-6771

Frequently asked questions about Travis County Mud 4

Is Travis County Mud 4 tap water safe to drink?

EPA monitoring detected 26 contaminants in Travis County Mud 4'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 Travis County Mud 4'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 Travis County Mud 4 serve?

Travis County Mud 4 reports serving 6,816 people in Texas, per its EPA record.

Has Travis County Mud 4 had any water quality violations?

The EPA has 14 violations on file for Travis County Mud 4, of which 0 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.