Is Sealy, TX Tap Water Safe? Quality & Contaminants

What was found in Sealy's water

The level at the city's main supplier, the highest level anywhere in the city, the EPA limit for each, and where every figure comes from.

Contaminant	Level vs EPA limit	Suppliers	Source
Nitrate	500 µg/L 5% of the EPA limit 10000 µg/L Main supplier: CITY OF SEALY · 6,839 people · 2019	3/3	SYR4
Nitrate-Nitrite	500 µg/L 5% of the EPA limit 10000 µg/L Main supplier: CITY OF SEALY · 6,839 people · 2019	3/3	SYR4
Copper	222.8499999999999 µg/L 17% of the EPA limit 1300 µg/L Main supplier: CITY OF SEALY · 6,839 people · 2019	3/3	SYR4
Barium	150 µg/L 7.5% of the EPA limit 2000 µg/L Main supplier: CITY OF SEALY · 6,839 people · 2019 Highest in the city: 206.15 µg/L — CITY OF BRAZOS COUNTRY · 579 people · 2018	3/3	SYR4
Fluoride	197.5 µg/L 4.9% of the EPA limit 4000 µg/L Main supplier: CITY OF SEALY · 6,839 people · 2017	3/3	SYR4
Lithium	13.5 µg/L No EPA limit set Main supplier: CITY OF SEALY · 6,839 people · 2023	1/3	UCMR-5
Lead	12.579999999999984 µg/L 84% of the EPA limit 15 µg/L Main supplier: CITY OF SEALY · 6,839 people · 2019	3/3	SYR4
TTHM	2.25 µg/L 2.8% of the EPA limit 80 µg/L Main supplier: CITY OF SEALY · 6,839 people · 2019 Highest in the city: 12.5 µg/L — CITY OF BRAZOS COUNTRY · 579 people · 2019	2/3	SYR4
Dibromochloromethane	1.39 µg/L No EPA limit set Main supplier: CITY OF SEALY · 6,839 people · 2019 Highest in the city: 4.4 µg/L — CITY OF BRAZOS COUNTRY · 579 people · 2019	2/3	SYR4
Selenium	3.1 µg/L 6.2% of the EPA limit 50 µg/L Main supplier: CITY OF SEALY · 6,839 people · 2019 Highest in the city: 4.4 µg/L — CITY OF BRAZOS COUNTRY · 579 people · 2018	3/3	SYR4
Bromoform	1.1 µg/L No EPA limit set Main supplier: CITY OF SEALY · 6,839 people · 2019 Highest in the city: 4 µg/L — CITY OF BRAZOS COUNTRY · 579 people · 2019	2/3	SYR4
Arsenic	2.485 µg/L 25% of the EPA limit 10 µg/L Main supplier: CITY OF SEALY · 6,839 people · 2019 Highest in the city: 3.95 µg/L — GREEN MEADOWS WSC · 84 people · 2019	3/3	SYR4
Combined Radium (-226 And -228)	2.8499999999999996 pCi/L 57% of the EPA limit 5 pCi/L Main supplier: CITY OF SEALY · 6,839 people · 2016 Highest in the city: 3.8 pCi/L — CITY OF BRAZOS COUNTRY · 579 people · 2015	3/3	SYR4
Gross Alpha, Excl. Radon And U	3 pCi/L 20% of the EPA limit 15 pCi/L Main supplier: CITY OF SEALY · 6,839 people · 2016	2/3	SYR4
Bromodichloromethane	1.1 µg/L No EPA limit set Main supplier: CITY OF SEALY · 6,839 people · 2019 Highest in the city: 2.7 µg/L — CITY OF BRAZOS COUNTRY · 579 people · 2019	2/3	SYR4
Chloroform	1.4 µg/L No EPA limit set Highest in the city: CITY OF BRAZOS COUNTRY · 579 people · 2019	1/3	SYR4
Combined Uranium	1.4 µg/L 4.7% of the EPA limit 30 µg/L Highest in the city: CITY OF BRAZOS COUNTRY · 579 people · 2015	1/3	SYR4
Xylenes, Total	0.6900 µg/L 0% of the EPA limit 10000 µg/L Main supplier: CITY OF SEALY · 6,839 people · 2019	1/3	SYR4
Lead	0.0 mg/L 0% of the EPA limit 0.0150 mg/L Main supplier: CITY OF SEALY · 6,839 people · 2024 Highest in the city: 0.00080 mg/L — CITY OF BRAZOS COUNTRY · 579 people · 2025	3/3	LCR

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 the system's samples — over 100% is worth reading, but is not by itself a violation. Formal violations are listed separately. These are the utilities' own EPA-reported results, not a city-wide average. A detection means the lab measured the substance — it isn't the same as exceeding a legal limit. Hover a source tag to see the EPA program and years behind each figure.

Water suppliers serving Sealy

Supplier	Population served
CITY OF SEALY	6,839
CITY OF BRAZOS COUNTRY	579
GREEN MEADOWS WSC	84

Frequently asked questions about Sealy tap water

Is Sealy tap water safe to drink?

EPA testing detected 19 contaminants in the water serving Sealy. A detection isn't the same as a violation — most detected levels are within federal limits. Check the level and source for each contaminant above, and your utility's annual Consumer Confidence Report for the official compliance status.

How many water suppliers serve Sealy?

3 public water suppliers report drinking-water monitoring for Sealy, Texas to the EPA. Each is listed above with its population served.

What contaminants are in Sealy's water?

The contaminants EPA monitoring detected in Sealy include Nitrate, Nitrate-Nitrite, Copper, Barium, Fluoride. The full list, with the level at the main supplier and the data source, is in the table above.

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.