What was found in Seabrook'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-Nitrite | 1490 µg/L 15% of the EPA limit 10000 µg/L Main supplier: CITY OF SEABROOK · 13,560 people · 2019 | 1/1 | SYR4 |
| Nitrate | 750 µg/L 7.5% of the EPA limit 10000 µg/L Main supplier: CITY OF SEABROOK · 13,560 people · 2019 | 1/1 | SYR4 |
| Fluoride | 737 µg/L 18% of the EPA limit 4000 µg/L Main supplier: CITY OF SEABROOK · 13,560 people · 2018 | 1/1 | SYR4 |
| Copper | 673.6 µg/L 52% of the EPA limit 1300 µg/L Main supplier: CITY OF SEABROOK · 13,560 people · 2017 | 1/1 | SYR4 |
| Nitrite | 630 µg/L 63% of the EPA limit 1000 µg/L Main supplier: CITY OF SEABROOK · 13,560 people · 2019 | 1/1 | SYR4 |
| Barium | 122.24 µg/L 6.1% of the EPA limit 2000 µg/L Main supplier: CITY OF SEABROOK · 13,560 people · 2018 | 1/1 | SYR4 |
| Cyanide | 67.5 µg/L 34% of the EPA limit 200 µg/L Main supplier: CITY OF SEABROOK · 13,560 people · 2018 | 1/1 | SYR4 |
| TTHM | 44 µg/L 55% of the EPA limit 80 µg/L Main supplier: CITY OF SEABROOK · 13,560 people · 2019 | 1/1 | SYR4 |
| Total Haloacetic Acids (HAA5) | 38.24 µg/L 64% of the EPA limit 60 µg/L Main supplier: CITY OF SEABROOK · 13,560 people · 2019 | 1/1 | SYR4 |
| Chloroform | 31.285 µg/L No EPA limit set Main supplier: CITY OF SEABROOK · 13,560 people · 2019 | 1/1 | SYR4 |
| Dichloroacetic Acid | 28.055 µg/L No EPA limit set Main supplier: CITY OF SEABROOK · 13,560 people · 2019 | 1/1 | SYR4 |
| Lithium | 19.8 µg/L No EPA limit set Main supplier: CITY OF SEABROOK · 13,560 people · 2023 | 1/1 | UCMR-5 |
| Bromodichloromethane | 11.4 µg/L No EPA limit set Main supplier: CITY OF SEABROOK · 13,560 people · 2019 | 1/1 | SYR4 |
| Monochloroacetic Acid | 10.375 µg/L No EPA limit set Main supplier: CITY OF SEABROOK · 13,560 people · 2019 | 1/1 | SYR4 |
| Trichloroacetic Acid | 8.555 µg/L No EPA limit set Main supplier: CITY OF SEABROOK · 13,560 people · 2019 | 1/1 | SYR4 |
| Bromoform | 7.48 µg/L No EPA limit set Main supplier: CITY OF SEABROOK · 13,560 people · 2019 | 1/1 | SYR4 |
| Lead | 6.279 µg/L 42% of the EPA limit 15 µg/L Main supplier: CITY OF SEABROOK · 13,560 people · 2017 | 1/1 | SYR4 |
| Dibromochloromethane | 4.815 µg/L No EPA limit set Main supplier: CITY OF SEABROOK · 13,560 people · 2019 | 1/1 | SYR4 |
| Dibromoacetic Acid | 2.9 µg/L No EPA limit set Main supplier: CITY OF SEABROOK · 13,560 people · 2019 | 1/1 | SYR4 |
| Di(2-ethylhexyl) Phthalate | 1.3 µg/L 22% of the EPA limit 6 µg/L Main supplier: CITY OF SEABROOK · 13,560 people · 2019 | 1/1 | SYR4 |
| Xylenes, Total | 0.7000 µg/L 0% of the EPA limit 10000 µg/L Main supplier: CITY OF SEABROOK · 13,560 people · 2019 | 1/1 | SYR4 |
| Atrazine | 0.3360 µg/L 11% of the EPA limit 3 µg/L Main supplier: CITY OF SEABROOK · 13,560 people · 2019 | 1/1 | SYR4 |
| Simazine | 0.1575 µg/L 3.9% of the EPA limit 4 µg/L Main supplier: CITY OF SEABROOK · 13,560 people · 2019 | 1/1 | SYR4 |
| Pfba | 0.0088 µg/L No EPA limit set Main supplier: CITY OF SEABROOK · 13,560 people · 2023 | 1/1 | UCMR-5 |
| Pfpea | 0.0079 µg/L No EPA limit set Main supplier: CITY OF SEABROOK · 13,560 people · 2023 | 1/1 | UCMR-5 |
| Pfhxa | 0.0070 µg/L No EPA limit set Main supplier: CITY OF SEABROOK · 13,560 people · 2023 | 1/1 | UCMR-5 |
| PFBS | 0.0042 µg/L No EPA limit set Main supplier: CITY OF SEABROOK · 13,560 people · 2023 | 1/1 | UCMR-5 |
| PFHXS | 0.0037 µg/L No EPA limit set Main supplier: CITY OF SEABROOK · 13,560 people · 2023 | 1/1 | UCMR-5 |
| Lead | 0.0 mg/L 0% of the EPA limit 0.0150 mg/L Main supplier: CITY OF SEABROOK · 13,560 people · 2023 | 1/1 | 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 Seabrook
| Supplier | Population served |
|---|---|
| CITY OF SEABROOK | 13,560 |
Frequently asked questions about Seabrook tap water
Is Seabrook tap water safe to drink?
EPA testing detected 29 contaminants in the water serving Seabrook. 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 Seabrook?
1 public water supplier report drinking-water monitoring for Seabrook, Texas to the EPA. Each is listed above with its population served.
What contaminants are in Seabrook's water?
The contaminants EPA monitoring detected in Seabrook include Nitrate-Nitrite, Nitrate, Fluoride, Copper, Nitrite. 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.