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Tap water quality report

Lake Mud

EPA monitoring tested this supplier for 44 contaminants and detected 17. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

44
contaminants tested
17
detected
6,048
people served
4
health-based violations
Water source
SWP
Ownership
Local government
Counties served
Harris

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.

4
health-based violations
6
violations on file
0
still open
ViolationTypeStatusPeriod
MCL Health-based Resolved 2004-06-01 → 2004-06-30
MCL Health-based Resolved 2004-06-01 → 2004-06-30
MCL Health-based Resolved 2004-06-01 → 2004-06-30
MCL Health-based Resolved 2004-06-01 → 2004-06-30
MR Monitoring Resolved 2013-12-30
MR Monitoring Resolved 2013-10-01

PFAS detected

PFAS are industrial “forever chemicals”. These are the EPA's latest nationwide test results (2023–2025).
ContaminantMaxDetection ratePeriod
Pfba 0.0073 µg/L 2/2 2025
PFBS 0.0033 µg/L 2/2 2025
Pfhxa 0.0048 µg/L 2/2 2025
Pfpea 0.0050 µg/L 1/2 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.
ContaminantLevel vs EPA limitDetection rateSourcePeriod
Bromodichloromethane
19.32 µg/L
No EPA limit set
worst single sample: 23 µg/L
59/59 SYR4 2012–2019
Chloroform
35.88 µg/L
No EPA limit set
worst single sample: 44.5 µg/L
59/59 SYR4 2012–2019
Dichloroacetic Acid
34.32 µg/L
No EPA limit set
worst single sample: 41.2 µg/L
59/59 SYR4 2012–2019
TTHM
57.17 µg/L 71%
of the EPA limit 80 µg/L
worst single sample: 64.4 µg/L
59/59 SYR4 2012–2019
Total Haloacetic Acids (HAA5)
48.23 µg/L 80%
of the EPA limit 60 µg/L
worst single sample: 68 µg/L
59/59 SYR4 2012–2019
Trichloroacetic Acid
14.24 µg/L
No EPA limit set
worst single sample: 15.9 µg/L
59/59 SYR4 2012–2019
Dibromochloromethane
8.36 µg/L
No EPA limit set
worst single sample: 9.6 µg/L
57/59 SYR4 2012–2019
Copper
428.825 µg/L 33%
of the EPA limit 1300 µg/L
worst single sample: 538.8 µg/L
56/63 SYR4 2013–2017
Dibromoacetic Acid
8.08 µg/L
No EPA limit set
worst single sample: 12.2 µg/L
48/59 SYR4 2012–2019
Lead
4.945 µg/L 33%
of the EPA limit 15 µg/L
worst single sample: 5.73 µg/L
26/63 SYR4 2013–2017
Lead
0.0 mg/L 0%
of the EPA limit 0.0150 mg/L
12/12 LCR 2023
Bromoform
1.96 µg/L
No EPA limit set
worst single sample: 2 µg/L
9/59 SYR4 2012–2019
Monochloroacetic Acid
6.06 µg/L
No EPA limit set
worst single sample: 6.3 µg/L
9/59 SYR4 2012–2019
27 contaminants tested, none detected
11Cl-PF3OUdS4:2 Fts6:2 Fts8:2 Fts9Cl-PF3ONSAdonaHfpo-DaMonobromoacetic AcidNetfosaaNfdhaNmefosaaPfdaPfdoaPfeesaPfhpaPfhpsPFHXSPfmbaPfmpaPFNAPFOAPFOSPfpesPftaPftrdaPfunaLithium

Utility contact

Contact
WITKOWSKI, KATHY
Phone
713-739-1060

Frequently asked questions about Lake Mud

Is Lake Mud tap water safe to drink?

EPA monitoring detected 17 contaminants in Lake Mud'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 Lake Mud's water?

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

How many people does Lake Mud serve?

Lake Mud reports serving 6,048 people in Texas, per its EPA record.

Has Lake Mud had any water quality violations?

The EPA has 6 violations on file for Lake Mud, of which 4 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.