What was found in ZIP 99101
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 | 546 µg/L 5.5% of the EPA limit 10000 µg/L Main supplier: STEVENS CO PUD - VALLEY · 550 people · 2019 | 1/1 | SYR4 |
| Nitrate-Nitrite | 467 µg/L 4.7% of the EPA limit 10000 µg/L Main supplier: STEVENS CO PUD - VALLEY · 550 people · 2019 | 1/1 | SYR4 |
| Barium | 213 µg/L 11% of the EPA limit 2000 µg/L Main supplier: STEVENS CO PUD - VALLEY · 550 people · 2019 | 1/1 | SYR4 |
| Fluoride | 109 µg/L 2.7% of the EPA limit 4000 µg/L Main supplier: STEVENS CO PUD - VALLEY · 550 people · 2019 | 1/1 | SYR4 |
| TTHM | 4.5905 µg/L 5.7% of the EPA limit 80 µg/L Main supplier: STEVENS CO PUD - VALLEY · 550 people · 2016 | 1/1 | SYR4 |
| Dibromochloromethane | 1.7855 µg/L No EPA limit set Main supplier: STEVENS CO PUD - VALLEY · 550 people · 2019 | 1/1 | SYR4 |
| Bromodichloromethane | 1.317 µg/L No EPA limit set Main supplier: STEVENS CO PUD - VALLEY · 550 people · 2019 | 1/1 | SYR4 |
| Arsenic | 1.11 µg/L 11% of the EPA limit 10 µg/L Main supplier: STEVENS CO PUD - VALLEY · 550 people · 2019 | 1/1 | SYR4 |
| Bromoform | 0.8270 µg/L No EPA limit set Main supplier: STEVENS CO PUD - VALLEY · 550 people · 2019 | 1/1 | SYR4 |
| Chloroform | 0.7870 µg/L No EPA limit set Main supplier: STEVENS CO PUD - VALLEY · 550 people · 2019 | 1/1 | SYR4 |
| Lead | 0.0 mg/L 0% of the EPA limit 0.0150 mg/L Main supplier: STEVENS CO PUD - VALLEY · 550 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 99101
| Supplier | State | Population served |
|---|---|---|
| STEVENS CO PUD - VALLEY | WA | 550 |
Frequently asked questions about ZIP 99101 tap water
Is the tap water in ZIP 99101 safe to drink?
EPA testing detected 11 contaminants across the water suppliers serving ZIP 99101. 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 99101?
1 public water supplier report EPA drinking-water monitoring for ZIP 99101. Each is listed above with its population served.
What contaminants are in ZIP 99101's water?
EPA monitoring detected Nitrate, Nitrate-Nitrite, Barium, Fluoride, TTHM, and others across this ZIP's suppliers. The full list with levels and sources is above.