What was found in ZIP 77478
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 |
|---|---|---|---|
| Nitrate | 2310 µg/L 23% of the EPA limit 10000 µg/L Main supplier: CITY OF SUGAR LAND · 90,909 people · 2019 | 1/1 | SYR4 |
| Nitrate-Nitrite | 1648 µg/L 16% of the EPA limit 10000 µg/L Main supplier: CITY OF SUGAR LAND · 90,909 people · 2015 | 1/1 | SYR4 |
| Chlorite | 669.6 µg/L 67% of the EPA limit 1000 µg/L Main supplier: CITY OF SUGAR LAND · 90,909 people · 2019 | 1/1 | SYR4 |
| Copper | 539.675 µg/L 42% of the EPA limit 1300 µg/L Main supplier: CITY OF SUGAR LAND · 90,909 people · 2017 | 1/1 | SYR4 |
| Fluoride | 397 µg/L 9.9% of the EPA limit 4000 µg/L Main supplier: CITY OF SUGAR LAND · 90,909 people · 2019 | 1/1 | SYR4 |
| Barium | 233.15 µg/L 12% of the EPA limit 2000 µg/L Main supplier: CITY OF SUGAR LAND · 90,909 people · 2019 | 1/1 | SYR4 |
| Cyanide | 160 µg/L 80% of the EPA limit 200 µg/L Main supplier: CITY OF SUGAR LAND · 90,909 people · 2019 | 1/1 | SYR4 |
| Lithium | 32.2 µg/L No EPA limit set Main supplier: CITY OF SUGAR LAND · 90,909 people · 2023 | 1/1 | UCMR-5 |
| Gross Alpha, Excl. Radon And U | 17.5 pCi/L 117% of the EPA limit, at the 95th percentile of samples — 15 pCi/L Main supplier: CITY OF SUGAR LAND · 90,909 people · 2019 | 1/1 | SYR4 |
| Selenium | 10.125 µg/L 20% of the EPA limit 50 µg/L Main supplier: CITY OF SUGAR LAND · 90,909 people · 2019 | 1/1 | SYR4 |
| Total Haloacetic Acids (HAA5) | 8.64 µg/L 14% of the EPA limit 60 µg/L Main supplier: CITY OF SUGAR LAND · 90,909 people · 2019 | 1/1 | SYR4 |
| Gross Beta Particle Activity | 8.1 pCi/L No EPA limit set Main supplier: CITY OF SUGAR LAND · 90,909 people · 2019 | 1/1 | SYR4 |
| TTHM | 8.07 µg/L 10% of the EPA limit 80 µg/L Main supplier: CITY OF SUGAR LAND · 90,909 people · 2019 | 1/1 | SYR4 |
| Lead | 8.02 µg/L 53% of the EPA limit 15 µg/L Main supplier: CITY OF SUGAR LAND · 90,909 people · 2017 | 1/1 | SYR4 |
| Combined Uranium | 7.4 µg/L 25% of the EPA limit 30 µg/L Main supplier: CITY OF SUGAR LAND · 90,909 people · 2019 | 1/1 | SYR4 |
| Xylenes, Total | 6.895 µg/L 0.1% of the EPA limit 10000 µg/L Main supplier: CITY OF SUGAR LAND · 90,909 people · 2019 | 1/1 | SYR4 |
| Dichloroacetic Acid | 5.77 µg/L No EPA limit set Main supplier: CITY OF SUGAR LAND · 90,909 people · 2019 | 1/1 | SYR4 |
| Monochloroacetic Acid | 4.095 µg/L No EPA limit set Main supplier: CITY OF SUGAR LAND · 90,909 people · 2019 | 1/1 | SYR4 |
| Dibromoacetic Acid | 4 µg/L No EPA limit set Main supplier: CITY OF SUGAR LAND · 90,909 people · 2019 | 1/1 | SYR4 |
| Combined Radium (-226 And -228) | 3.8625 pCi/L 77% of the EPA limit 5 pCi/L Main supplier: CITY OF SUGAR LAND · 90,909 people · 2017 | 1/1 | SYR4 |
| Bromoform | 3.6 µg/L No EPA limit set Main supplier: CITY OF SUGAR LAND · 90,909 people · 2019 | 1/1 | SYR4 |
| Arsenic | 3.57 µg/L 36% of the EPA limit 10 µg/L Main supplier: CITY OF SUGAR LAND · 90,909 people · 2019 | 1/1 | SYR4 |
| Dibromochloromethane | 3.54 µg/L No EPA limit set Main supplier: CITY OF SUGAR LAND · 90,909 people · 2019 | 1/1 | SYR4 |
| Chloroform | 3.005 µg/L No EPA limit set Main supplier: CITY OF SUGAR LAND · 90,909 people · 2019 | 1/1 | SYR4 |
| Trichloroacetic Acid | 2.53 µg/L No EPA limit set Main supplier: CITY OF SUGAR LAND · 90,909 people · 2019 | 1/1 | SYR4 |
| Bromodichloromethane | 2.145 µg/L No EPA limit set Main supplier: CITY OF SUGAR LAND · 90,909 people · 2019 | 1/1 | SYR4 |
| Monobromoacetic Acid | 1.5 µg/L No EPA limit set Main supplier: CITY OF SUGAR LAND · 90,909 people · 2019 | 1/1 | SYR4 |
| Ethylbenzene | 1.4 µg/L 0.2% of the EPA limit 700 µg/L Main supplier: CITY OF SUGAR LAND · 90,909 people · 2019 | 1/1 | SYR4 |
| Toluene | 1.4 µg/L 0.1% of the EPA limit 1000 µg/L Main supplier: CITY OF SUGAR LAND · 90,909 people · 2019 | 1/1 | SYR4 |
| Simazine | 0.7800 µg/L 20% of the EPA limit 4 µg/L Main supplier: CITY OF SUGAR LAND · 90,909 people · 2019 | 1/1 | SYR4 |
| 6:2 Fts | 0.6720 µg/L No EPA limit set Main supplier: CITY OF SUGAR LAND · 90,909 people · 2023 | 1/1 | UCMR-5 |
| Atrazine | 0.4305 µg/L 14% of the EPA limit 3 µg/L Main supplier: CITY OF SUGAR LAND · 90,909 people · 2019 | 1/1 | SYR4 |
| Pfpea | 0.3580 µg/L No EPA limit set Main supplier: CITY OF SUGAR LAND · 90,909 people · 2023 | 1/1 | UCMR-5 |
| Pfba | 0.0748 µg/L No EPA limit set Main supplier: CITY OF SUGAR LAND · 90,909 people · 2023 | 1/1 | UCMR-5 |
| Pfhxa | 0.0129 µg/L No EPA limit set Main supplier: CITY OF SUGAR LAND · 90,909 people · 2023 | 1/1 | UCMR-5 |
| PFBS | 0.0058 µg/L No EPA limit set Main supplier: CITY OF SUGAR LAND · 90,909 people · 2023 | 1/1 | UCMR-5 |
| PFOA | 0.0041 µg/L No EPA limit set Main supplier: CITY OF SUGAR LAND · 90,909 people · 2023 | 1/1 | UCMR-5 |
| Pfhpa | 0.0036 µg/L No EPA limit set Main supplier: CITY OF SUGAR LAND · 90,909 people · 2023 | 1/1 | UCMR-5 |
| Adona | 0.0034 µg/L No EPA limit set Main supplier: CITY OF SUGAR LAND · 90,909 people · 2023 | 1/1 | UCMR-5 |
| Lead | 0.0025 mg/L 17% of the EPA limit 0.0150 mg/L Main supplier: CITY OF SUGAR LAND · 90,909 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.
Water suppliers serving ZIP 77478
| Supplier | State | Population served |
|---|---|---|
| CITY OF SUGAR LAND | TX | 90,909 |
Frequently asked questions about ZIP 77478 tap water
Is the tap water in ZIP 77478 safe to drink?
EPA testing detected 40 contaminants across the water suppliers serving ZIP 77478. 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 77478?
1 public water supplier report EPA drinking-water monitoring for ZIP 77478. Each is listed above with its population served.
What contaminants are in ZIP 77478's water?
EPA monitoring detected Nitrate, Nitrate-Nitrite, Chlorite, Copper, Fluoride, and others across this ZIP's suppliers. The full list with levels and sources is above.