What was found in ZIP 99016
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 |
|---|---|---|---|
| Nitrate | 2830 µg/L 28% of the EPA limit 10000 µg/L | 3/3 | SYR4 |
| Nitrate-Nitrite | 2650 µg/L 27% of the EPA limit 10000 µg/L | 3/3 | SYR4 |
| Barium | 71.7 µg/L 3.6% of the EPA limit 2000 µg/L | 3/3 | SYR4 |
| Copper | 11.5 µg/L 0.9% of the EPA limit 1300 µg/L | 2/3 | SYR4 |
| TTHM | 7.83 µg/L 9.8% of the EPA limit 80 µg/L | 1/3 | SYR4 |
| Arsenic | 5.3 µg/L 53% of the EPA limit 10 µg/L | 3/3 | SYR4 |
| Gross Beta Particle Activity | 4 pCi/L No EPA limit set | 1/3 | SYR4 |
| Dibromochloromethane | 3.17 µg/L No EPA limit set | 1/3 | SYR4 |
| Bromoform | 2.3 µg/L No EPA limit set | 1/3 | SYR4 |
| Bromodichloromethane | 2.1 µg/L No EPA limit set | 1/3 | SYR4 |
| Chloroform | 1.39 µg/L No EPA limit set | 1/3 | SYR4 |
| Chromium | 1 µg/L 1% of the EPA limit 100 µg/L | 1/3 | SYR4 |
| Lead | 0.0208 mg/L 139% above the EPA limit of 0.0150 mg/L | 3/3 | 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 99016
| Supplier | State | Population served |
|---|---|---|
| VERA WATER & POWER | WA | 24,692 |
| CONSOLIDATED IRRIG DIST 19 SYSTEM 2 | WA | 21,220 |
| CONSOLIDATED IRRIG DIST 19 SYSTEM 1 | WA | 9,434 |
Frequently asked questions about ZIP 99016 tap water
Is the tap water in ZIP 99016 safe to drink?
EPA testing detected 13 contaminants across the water suppliers serving ZIP 99016. 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 99016?
3 public water suppliers report EPA drinking-water monitoring for ZIP 99016. Each is listed above with its population served.
What contaminants are in ZIP 99016's water?
EPA monitoring detected Nitrate, Nitrate-Nitrite, Barium, Copper, TTHM, and others across this ZIP's suppliers. The full list with levels and sources is above.