What was found in ZIP 78617
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 |
|---|---|---|---|
| Fluoride | 950 µg/L 24% of the EPA limit 4000 µg/L | 2/2 | SYR4 |
| Copper | 577 µg/L 44% of the EPA limit 1300 µg/L | 2/2 | SYR4 |
| Nitrate | 570 µg/L 5.7% of the EPA limit 10000 µg/L | 2/2 | SYR4 |
| Nitrate-Nitrite | 200 µg/L 2% of the EPA limit 10000 µg/L | 1/2 | SYR4 |
| Barium | 160 µg/L 8% of the EPA limit 2000 µg/L | 2/2 | SYR4 |
| Cyanide | 140 µg/L 70% of the EPA limit 200 µg/L | 1/2 | SYR4 |
| TTHM | 101 µg/L 126% of the EPA limit, in the worst sample — 80 µg/L | 2/2 | SYR4 |
| Lithium | 83 µg/L No EPA limit set | 1/2 | UCMR-5 |
| Chloroform | 78.1 µg/L No EPA limit set | 2/2 | SYR4 |
| Bromoform | 57.6 µg/L No EPA limit set | 2/2 | SYR4 |
| Total Haloacetic Acids (HAA5) | 44.7 µg/L 75% of the EPA limit 60 µg/L | 2/2 | SYR4 |
| Dibromochloromethane | 33.1 µg/L No EPA limit set | 2/2 | SYR4 |
| Dichloroacetic Acid | 27.8 µg/L No EPA limit set | 2/2 | SYR4 |
| Lead | 27 µg/L 180% of the EPA limit, in the worst sample — 15 µg/L | 2/2 | SYR4 |
| Bromodichloromethane | 23.2 µg/L No EPA limit set | 2/2 | SYR4 |
| Trichloroacetic Acid | 18.7 µg/L No EPA limit set | 2/2 | SYR4 |
| Dibromoacetic Acid | 11.5 µg/L No EPA limit set | 2/2 | SYR4 |
| Gross Beta Particle Activity | 6.8 pCi/L No EPA limit set | 2/2 | SYR4 |
| Monochloroacetic Acid | 6.7 µg/L No EPA limit set | 2/2 | SYR4 |
| Combined Radium (-226 And -228) | 4.5 pCi/L 90% of the EPA limit 5 pCi/L | 1/2 | SYR4 |
| Diquat | 4.2 µg/L 21% of the EPA limit 20 µg/L | 1/2 | SYR4 |
| Selenium | 3.7 µg/L 7.4% of the EPA limit 50 µg/L | 1/2 | SYR4 |
| Gross Alpha, Excl. Radon And U | 2.8 pCi/L 19% of the EPA limit 15 pCi/L | 1/2 | SYR4 |
| Monobromoacetic Acid | 1.9 µg/L No EPA limit set | 2/2 | SYR4 |
| Arsenic | 0.9340 µg/L 9.3% of the EPA limit 10 µg/L | 1/2 | SYR4 |
| Vinyl Chloride | 0.9000 µg/L 45% of the EPA limit 2 µg/L | 1/2 | SYR4 |
| Di(2-ethylhexyl) Phthalate | 0.8100 µg/L 14% of the EPA limit 6 µg/L | 1/2 | SYR4 |
| Chromium | 0.4290 µg/L 0.4% of the EPA limit 100 µg/L | 1/2 | SYR4 |
| Simazine | 0.0800 µg/L 2% of the EPA limit 4 µg/L | 1/2 | SYR4 |
| Pfba | 0.0084 µg/L No EPA limit set | 1/2 | UCMR-5 |
| PFHXS | 0.0062 µg/L No EPA limit set | 1/2 | UCMR-5 |
| PFBS | 0.0051 µg/L No EPA limit set | 1/2 | UCMR-5 |
| PFOS | 0.0048 µg/L No EPA limit set | 1/2 | UCMR-5 |
| Pfpea | 0.0041 µg/L No EPA limit set | 1/2 | UCMR-5 |
| Pfhxa | 0.0033 µg/L No EPA limit set | 1/2 | UCMR-5 |
| Lead | 0.0014 mg/L 9.3% of the EPA limit 0.0150 mg/L | 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 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 78617
| Supplier | State | Population served |
|---|---|---|
| CITY OF AUSTIN WATER & WASTEWATER | TX | 1,115,323 |
| AQUA WSC | TX | 86,325 |
Frequently asked questions about ZIP 78617 tap water
Is the tap water in ZIP 78617 safe to drink?
EPA testing detected 36 contaminants across the water suppliers serving ZIP 78617. 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 78617?
2 public water suppliers report EPA drinking-water monitoring for ZIP 78617. Each is listed above with its population served.
What contaminants are in ZIP 78617's water?
EPA monitoring detected Fluoride, Copper, Nitrate, Nitrate-Nitrite, Barium, and others across this ZIP's suppliers. The full list with levels and sources is above.