What was found in ZIP 77474
The level at this ZIP's main supplier, the highest level anywhere in it, the EPA limit for each, and where the figure comes from.
| Contaminant | Level vs EPA limit | Suppliers | Source |
|---|---|---|---|
| Fluoride | 197.5 µg/L 4.9% of the EPA limit 4000 µg/L Main supplier: CITY OF SEALY · 6,839 people · 2017
Highest in the ZIP: 559 µg/L — AUSTIN COUNTY WSC 4 · 681 people · 2018 | 2/2 | SYR4 |
| Nitrate | 500 µg/L 5% of the EPA limit 10000 µg/L Main supplier: CITY OF SEALY · 6,839 people · 2019 | 2/2 | SYR4 |
| Nitrate-Nitrite | 500 µg/L 5% of the EPA limit 10000 µg/L Main supplier: CITY OF SEALY · 6,839 people · 2019 | 2/2 | SYR4 |
| Copper | 222.8499999999999 µg/L 17% of the EPA limit 1300 µg/L Main supplier: CITY OF SEALY · 6,839 people · 2019
Highest in the ZIP: 252 µg/L — AUSTIN COUNTY WSC 4 · 681 people · 2017 | 2/2 | 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 ZIP: 212.85 µg/L — AUSTIN COUNTY WSC 4 · 681 people · 2018 | 2/2 | SYR4 |
| Lithium | 13.5 µg/L No EPA limit set Main supplier: CITY OF SEALY · 6,839 people · 2023
Highest in the ZIP: 47.8 µg/L — AUSTIN COUNTY WSC 4 · 681 people · 2023 | 2/2 | UCMR-5 |
| 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 ZIP: 18.41 µg/L — AUSTIN COUNTY WSC 4 · 681 people · 2019 | 2/2 | SYR4 |
| Lead | 12.579999999999984 µg/L 84% of the EPA limit 15 µg/L Main supplier: CITY OF SEALY · 6,839 people · 2019 | 2/2 | SYR4 |
| Bromoform | 1.1 µg/L No EPA limit set Main supplier: CITY OF SEALY · 6,839 people · 2019
Highest in the ZIP: 8.559999999999999 µg/L — AUSTIN COUNTY WSC 4 · 681 people · 2019 | 2/2 | SYR4 |
| Total Haloacetic Acids (HAA5) | 6.425 µg/L 11% of the EPA limit 60 µg/L Highest in the ZIP: AUSTIN COUNTY WSC 4 · 681 people · 2019 | 1/2 | 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
Highest in the ZIP: 6.16 pCi/L — AUSTIN COUNTY WSC 4 · 681 people · 2018 | 2/2 | SYR4 |
| Dibromochloromethane | 1.39 µg/L No EPA limit set Main supplier: CITY OF SEALY · 6,839 people · 2019
Highest in the ZIP: 4.379999999999999 µg/L — AUSTIN COUNTY WSC 4 · 681 people · 2019 | 2/2 | SYR4 |
| Gross Beta Particle Activity | 4.2 pCi/L No EPA limit set Highest in the ZIP: AUSTIN COUNTY WSC 4 · 681 people · 2018 | 1/2 | 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 ZIP: 3.8 µg/L — AUSTIN COUNTY WSC 4 · 681 people · 2018 | 2/2 | SYR4 |
| Dichloroacetic Acid | 3.26 µg/L No EPA limit set Highest in the ZIP: AUSTIN COUNTY WSC 4 · 681 people · 2019 | 1/2 | SYR4 |
| Chloroform | 3.25 µg/L No EPA limit set Highest in the ZIP: AUSTIN COUNTY WSC 4 · 681 people · 2019 | 1/2 | 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 ZIP: 3.1929999999999996 pCi/L — AUSTIN COUNTY WSC 4 · 681 people · 2018 | 2/2 | SYR4 |
| Arsenic | 2.485 µg/L 25% of the EPA limit 10 µg/L Main supplier: CITY OF SEALY · 6,839 people · 2019 | 1/2 | SYR4 |
| Bromodichloromethane | 1.1 µg/L No EPA limit set Main supplier: CITY OF SEALY · 6,839 people · 2019
Highest in the ZIP: 2.375 µg/L — AUSTIN COUNTY WSC 4 · 681 people · 2019 | 2/2 | SYR4 |
| Trichloroacetic Acid | 2.2 µg/L No EPA limit set Highest in the ZIP: AUSTIN COUNTY WSC 4 · 681 people · 2019 | 1/2 | SYR4 |
| Dibromoacetic Acid | 2.075 µg/L No EPA limit set Highest in the ZIP: AUSTIN COUNTY WSC 4 · 681 people · 2019 | 1/2 | SYR4 |
| Toluene | 1 µg/L 0.1% of the EPA limit 1000 µg/L Highest in the ZIP: AUSTIN COUNTY WSC 4 · 681 people · 2019 | 1/2 | SYR4 |
| Xylenes, Total | 0.6900 µg/L 0% of the EPA limit 10000 µg/L Main supplier: CITY OF SEALY · 6,839 people · 2019 | 1/2 | SYR4 |
| Lead | 0.0 mg/L 0% of the EPA limit 0.0150 mg/L Main supplier: CITY OF SEALY · 6,839 people · 2024 | 2/2 | 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.
Water suppliers serving ZIP 77474
| Supplier | State | Population served |
|---|---|---|
| CITY OF SEALY | TX | 6,839 |
| AUSTIN COUNTY WSC 4 | TX | 681 |
Frequently asked questions about ZIP 77474 tap water
Is the tap water in ZIP 77474 safe to drink?
EPA testing detected 24 contaminants across the water suppliers serving ZIP 77474. A detection isn't the same as a violation — most levels are within federal limits. See each level and source above, and your utility's annual Consumer Confidence Report for the official status.
Which water suppliers serve ZIP 77474?
2 public water suppliers report EPA drinking-water monitoring for ZIP 77474. Each is listed above with its population served.
What contaminants are in ZIP 77474's water?
EPA monitoring detected Fluoride, Nitrate, Nitrate-Nitrite, Copper, Barium, and others across this ZIP's suppliers. The full list with levels and sources is above.