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Tap water quality report

Wells Branch Mud 1

EPA monitoring tested this supplier for 44 contaminants and detected 15. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

44
contaminants tested
15
detected
18,015
people served
10
health-based violations
Water source
SWP
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.

10
health-based violations
17
violations on file
0
still open
ViolationTypeStatusPeriod
MCL Health-based Resolved 2014-08-01 → 2014-08-31
MCL Health-based Resolved 2014-08-01 → 2014-08-31
MCL Health-based Resolved 2014-08-01 → 2014-08-31
MCL Health-based Resolved 2014-08-01 → 2014-08-31
MCL Health-based Resolved 2008-08-01 → 2008-08-31
MCL Health-based Resolved 2008-08-01 → 2008-08-31
MCL Health-based Resolved 2008-08-01 → 2008-08-31
MCL Health-based Resolved 2008-05-01 → 2008-05-31
MCL Health-based Resolved 2008-05-01 → 2008-05-31
MCL Health-based Resolved 2008-05-01 → 2008-05-31

PFAS detected

PFAS are industrial “forever chemicals”. These are the EPA's latest nationwide test results (2023–2025).
ContaminantMaxDetection ratePeriod
Pfba 0.0054 µg/L 1/4 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 single worst sample on record — over 100% is worth reading, but is not by itself a violation. Formal violations are listed separately.
ContaminantLevel vs EPA limitDetection rateSourcePeriod
Bromodichloromethane
20.3 µg/L
No EPA limit set
125/125 SYR4 2012–2019
Chloroform
60.2 µg/L
No EPA limit set
125/125 SYR4 2012–2019
Dibromochloromethane
19.4 µg/L
No EPA limit set
125/125 SYR4 2012–2019
TTHM
85.1 µg/L 106%
of the EPA limit, in the worst sample — 80 µg/L
125/125 SYR4 2012–2019
Total Haloacetic Acids (HAA5)
38.6 µg/L 64%
of the EPA limit 60 µg/L
125/125 SYR4 2012–2019
Dichloroacetic Acid
24.4 µg/L
No EPA limit set
124/125 SYR4 2012–2019
Trichloroacetic Acid
14.2 µg/L
No EPA limit set
124/125 SYR4 2012–2019
Dibromoacetic Acid
8.1 µg/L
No EPA limit set
104/125 SYR4 2012–2019
Bromoform
4.4 µg/L
No EPA limit set
88/125 SYR4 2012–2019
Copper
37.9 µg/L 2.9%
of the EPA limit 1300 µg/L
56/90 SYR4 2013–2019
Monochloroacetic Acid
3.3 µg/L
No EPA limit set
23/125 SYR4 2012–2019
Lead
2.7 µg/L 18%
of the EPA limit 15 µg/L
14/90 SYR4 2013–2019
Lead
0.0 mg/L 0%
of the EPA limit 0.0150 mg/L
13/13 LCR 2025
Monobromoacetic Acid
1 µg/L
No EPA limit set
1/125 SYR4 2012–2019
29 contaminants tested, none detected
11Cl-PF3OUdS4:2 Fts6:2 Fts8:2 Fts9Cl-PF3ONSAdonaHfpo-DaNetfosaaNfdhaNmefosaaPFBSPfdaPfdoaPfeesaPfhpaPfhpsPfhxaPFHXSPfmbaPfmpaPFNAPFOAPFOSPfpeaPfpesPftaPftrdaPfunaLithium

Utility contact

Contact
ROSS, SHIRLEY
Phone
512-310-4127
Email
sross@wellsbranchmud.com

Frequently asked questions about Wells Branch Mud 1

Is Wells Branch Mud 1 tap water safe to drink?

EPA monitoring detected 15 contaminants in Wells Branch Mud 1'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 Wells Branch Mud 1's water?

EPA monitoring detected Bromodichloromethane, Chloroform, Dibromochloromethane, TTHM, Total Haloacetic Acids (HAA5), and others. The full list with the level and data source for each is above.

How many people does Wells Branch Mud 1 serve?

Wells Branch Mud 1 reports serving 18,015 people in Texas, per its EPA record.

Has Wells Branch Mud 1 had any water quality violations?

The EPA has 17 violations on file for Wells Branch Mud 1, 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.