What was found in ZIP 77494
The highest level seen across the suppliers serving this ZIP, the EPA limit for each, and where the figure comes from.
| Contaminant | Level vs EPA limit | Suppliers | Source |
|---|---|---|---|
| Copper | 2500 µg/L 192% of the EPA limit, in the worst sample — 1300 µg/L | 17/17 | SYR4 |
| Barium | 1000 µg/L 50% of the EPA limit 2000 µg/L | 10/17 | SYR4 |
| Nitrate | 870 µg/L 8.7% of the EPA limit 10000 µg/L | 7/17 | SYR4 |
| Nitrate-Nitrite | 870 µg/L 8.7% of the EPA limit 10000 µg/L | 8/17 | SYR4 |
| Fluoride | 620 µg/L 16% of the EPA limit 4000 µg/L | 10/17 | SYR4 |
| Cyanide | 170 µg/L 85% of the EPA limit 200 µg/L | 3/17 | SYR4 |
| TTHM | 106 µg/L 133% of the EPA limit, in the worst sample — 80 µg/L | 13/17 | SYR4 |
| Total Haloacetic Acids (HAA5) | 65.7 µg/L 110% of the EPA limit, in the worst sample — 60 µg/L | 12/17 | SYR4 |
| Lead | 56 µg/L 373% of the EPA limit, in the worst sample — 15 µg/L | 16/17 | SYR4 |
| Chloroform | 52.7 µg/L No EPA limit set | 11/17 | SYR4 |
| Dichloroacetic Acid | 40.4 µg/L No EPA limit set | 11/17 | SYR4 |
| Arsenic | 37 µg/L 370% of the EPA limit, in the worst sample — 10 µg/L | 8/17 | SYR4 |
| Lithium | 32.3 µg/L No EPA limit set | 17/17 | UCMR-5 |
| Bromodichloromethane | 32 µg/L No EPA limit set | 11/17 | SYR4 |
| Trichloroacetic Acid | 27 µg/L No EPA limit set | 11/17 | SYR4 |
| Dibromochloromethane | 17.5 µg/L No EPA limit set | 13/17 | SYR4 |
| Combined Uranium | 13.5 µg/L 45% of the EPA limit 30 µg/L | 6/17 | SYR4 |
| Bromoform | 12 µg/L No EPA limit set | 10/17 | SYR4 |
| Gross Alpha, Excl. Radon And U | 12 pCi/L 80% of the EPA limit 15 pCi/L | 5/17 | SYR4 |
| Dibromoacetic Acid | 10.2 µg/L No EPA limit set | 12/17 | SYR4 |
| Chromium | 10 µg/L 10% of the EPA limit 100 µg/L | 1/17 | SYR4 |
| Xylenes, Total | 9.7 µg/L 0.1% of the EPA limit 10000 µg/L | 1/17 | SYR4 |
| Monobromoacetic Acid | 8 µg/L No EPA limit set | 2/17 | SYR4 |
| Gross Beta Particle Activity | 7.8 pCi/L No EPA limit set | 9/17 | SYR4 |
| Selenium | 7.3 µg/L 15% of the EPA limit 50 µg/L | 3/17 | SYR4 |
| Monochloroacetic Acid | 6.9 µg/L No EPA limit set | 6/17 | SYR4 |
| Di(2-ethylhexyl) Phthalate | 3.37 µg/L 56% of the EPA limit 6 µg/L | 2/17 | SYR4 |
| Combined Radium (-226 And -228) | 2.7 pCi/L 54% of the EPA limit 5 pCi/L | 9/17 | SYR4 |
| Ethylbenzene | 1.5 µg/L 0.2% of the EPA limit 700 µg/L | 1/17 | SYR4 |
| Atrazine | 0.3300 µg/L 11% of the EPA limit 3 µg/L | 4/17 | SYR4 |
| Simazine | 0.3100 µg/L 7.8% of the EPA limit 4 µg/L | 3/17 | SYR4 |
| 2,4-D | 0.1000 µg/L 0.1% of the EPA limit 70 µg/L | 1/17 | SYR4 |
| Pfba | 0.0205 µg/L No EPA limit set | 6/17 | UCMR-5 |
| Pfhxa | 0.0091 µg/L No EPA limit set | 6/17 | UCMR-5 |
| Pfpea | 0.0088 µg/L No EPA limit set | 7/17 | UCMR-5 |
| 6:2 Fts | 0.0079 µg/L No EPA limit set | 1/17 | UCMR-5 |
| PFOS | 0.0042 µg/L No EPA limit set | 1/17 | UCMR-5 |
| Lead | 0.0042 mg/L 28% of the EPA limit 0.0150 mg/L | 17/17 | LCR |
| PFBS | 0.0040 µg/L No EPA limit set | 2/17 | UCMR-5 |
| PFHXS | 0.0038 µg/L No EPA limit set | 1/17 | UCMR-5 |
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 single worst sample on
record — over 100% is worth reading, but is not by itself a violation.
Formal violations are listed separately.
Water suppliers serving ZIP 77494
| Supplier | State | Population served |
|---|---|---|
| CITY OF KATY | TX | 25,253 |
| FORT BEND COUNTY MUD 142 | TX | 11,595 |
| FORT BEND COUNTY MUD 58 | TX | 10,629 |
| FORT BEND COUNTY MUD 151 | TX | 10,233 |
| HARRIS-FORT BEND COUNTIES MUD 3 | TX | 9,297 |
| FORT BEND COUNTY MUD 35 | TX | 6,297 |
| CINCO MUD 14 | TX | 6,192 |
| CINCO SOUTHWEST MUD 4 | TX | 6,093 |
| CINCO SOUTHWEST MUD 2 | TX | 5,496 |
| FORT BEND COUNTY MUD 34 | TX | 5,367 |
| FORT BEND COUNTY MUD 57 | TX | 5,335 |
| CINCO SOUTHWEST MUD 3 DAYCARE | TX | 5,187 |
| HARRIS FORT BEND COUNTIES MUD 5 | TX | 4,641 |
| UNITED WATER SYSTEM | LA | 4,446 |
| CINCO MUD 9 | TX | 3,828 |
| HARRIS FORT BEND COUNTIES MUD 1 | TX | 3,812 |
| FORT BEND COUNTY MUD 124 | TX | 2,544 |
Frequently asked questions about ZIP 77494 tap water
Is the tap water in ZIP 77494 safe to drink?
EPA testing detected 40 contaminants across the water suppliers serving ZIP 77494. 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 77494?
17 public water suppliers report EPA drinking-water monitoring for ZIP 77494. Each is listed above with its population served.
What contaminants are in ZIP 77494's water?
EPA monitoring detected Copper, Barium, Nitrate, Nitrate-Nitrite, Fluoride, and others across this ZIP's suppliers. The full list with levels and sources is above.