Is Treasure Island Mud Tap Water Safe? Quality Report

Water source: SWP
Ownership: Local government
Counties served: Brazoria

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.

190

health-based violations

296

violations on file

still open

Violation	Type	Status	Period
MCL	Health-based	Resolved	2025-07-01 → 2025-09-30
MCL	Health-based	Resolved	2025-07-01 → 2025-09-30
MCL	Health-based	Resolved	2025-07-01 → 2025-09-30
MCL	Health-based	Resolved	2025-07-01 → 2025-09-30
MCL	Health-based	Resolved	2025-04-01 → 2025-06-30
MCL	Health-based	Resolved	2025-04-01 → 2025-06-30
MCL	Health-based	Resolved	2025-04-01 → 2025-06-30
MCL	Health-based	Resolved	2025-04-01 → 2025-06-30
MCL	Health-based	Resolved	2023-04-01 → 2023-06-30
MCL	Health-based	Resolved	2023-04-01 → 2023-06-30

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	43.5 µg/L No EPA limit set worst single sample: 49.2 µg/L	56/56	SYR4	2012–2019
Chloroform	71.525 µg/L No EPA limit set worst single sample: 136 µg/L	56/56	SYR4	2012–2019
Dibromochloromethane	39.4 µg/L No EPA limit set worst single sample: 47.6 µg/L	56/56	SYR4	2012–2019
TTHM	151.5 µg/L 189% of the EPA limit, at the 95th percentile of samples — 80 µg/L worst single sample: 190 µg/L	56/56	SYR4	2012–2019
Total Haloacetic Acids (HAA5)	68.35 µg/L 114% of the EPA limit, at the 95th percentile of samples — 60 µg/L worst single sample: 88 µg/L	56/56	SYR4	2012–2019
Bromoform	24.37 µg/L No EPA limit set worst single sample: 29.4 µg/L	55/56	SYR4	2012–2019
Dibromoacetic Acid	14.275 µg/L No EPA limit set worst single sample: 16 µg/L	54/56	SYR4	2012–2019
Dichloroacetic Acid	26.38 µg/L No EPA limit set worst single sample: 46.7 µg/L	53/56	SYR4	2012–2019
Trichloroacetic Acid	29.15 µg/L No EPA limit set worst single sample: 67.6 µg/L	51/56	SYR4	2012–2019
Copper	82.275 µg/L 6.3% of the EPA limit 1300 µg/L worst single sample: 120 µg/L	26/30	SYR4	2012–2019
Lead	6.32 µg/L 42% of the EPA limit 15 µg/L worst single sample: 7.6 µg/L	17/30	SYR4	2012–2019
Monobromoacetic Acid	3.86 µg/L No EPA limit set worst single sample: 5 µg/L	13/56	SYR4	2012–2019
Monochloroacetic Acid	3.955 µg/L No EPA limit set worst single sample: 4 µg/L	10/56	SYR4	2012–2019
Lead	0.00054 mg/L 3.6% of the EPA limit 0.0150 mg/L	2/2	LCR	2023

Utility contact

Contact: LAWLER, RICK
Phone: 979-239-4198
Email: treasureislandmud3@gmail.com

Frequently asked questions about Treasure Island Mud

Is Treasure Island Mud tap water safe to drink?

EPA monitoring detected 14 contaminants in Treasure Island 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 Treasure Island Mud'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 Treasure Island Mud serve?

Treasure Island Mud reports serving 951 people in Texas, per its EPA record.

Has Treasure Island Mud had any water quality violations?

The EPA has 296 violations on file for Treasure Island Mud, of which 190 are health-based (a contaminant limit or required treatment was breached) and 1 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.