What was found in ZIP 98383
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 | 2640 µg/L 26% of the EPA limit 10000 µg/L Main supplier: SILVERDALE WATER DIST 16 · 35,163 people · 2019 | 1/1 | SYR4 |
| Nitrate-Nitrite | 1733.9999999999998 µg/L 17% of the EPA limit 10000 µg/L Main supplier: SILVERDALE WATER DIST 16 · 35,163 people · 2019 | 1/1 | SYR4 |
| TTHM | 11.475 µg/L 14% of the EPA limit 80 µg/L Main supplier: SILVERDALE WATER DIST 16 · 35,163 people · 2019 | 1/1 | SYR4 |
| Chromium | 9.85 µg/L 9.9% of the EPA limit 100 µg/L Main supplier: SILVERDALE WATER DIST 16 · 35,163 people · 2019 | 1/1 | SYR4 |
| Arsenic | 7.339999999999999 µg/L 73% of the EPA limit 10 µg/L Main supplier: SILVERDALE WATER DIST 16 · 35,163 people · 2019 | 1/1 | SYR4 |
| Chloroform | 7.060000000000002 µg/L No EPA limit set Main supplier: SILVERDALE WATER DIST 16 · 35,163 people · 2019 | 1/1 | SYR4 |
| Total Haloacetic Acids (HAA5) | 5.699999999999998 µg/L 9.5% of the EPA limit 60 µg/L Main supplier: SILVERDALE WATER DIST 16 · 35,163 people · 2018 | 1/1 | SYR4 |
| Bromodichloromethane | 3.3299999999999996 µg/L No EPA limit set Main supplier: SILVERDALE WATER DIST 16 · 35,163 people · 2019 | 1/1 | SYR4 |
| Trichloroacetic Acid | 3.3 µg/L No EPA limit set Main supplier: SILVERDALE WATER DIST 16 · 35,163 people · 2019 | 1/1 | SYR4 |
| Dichloroacetic Acid | 2.6 µg/L No EPA limit set Main supplier: SILVERDALE WATER DIST 16 · 35,163 people · 2019 | 1/1 | SYR4 |
| Dibromochloromethane | 2 µg/L No EPA limit set Main supplier: SILVERDALE WATER DIST 16 · 35,163 people · 2019 | 1/1 | SYR4 |
| Dibromoacetic Acid | 1 µg/L No EPA limit set Main supplier: SILVERDALE WATER DIST 16 · 35,163 people · 2019 | 1/1 | SYR4 |
| Bromoform | 0.9000 µg/L No EPA limit set Main supplier: SILVERDALE WATER DIST 16 · 35,163 people · 2019 | 1/1 | SYR4 |
| Lead | 0.0020 mg/L 13% of the EPA limit 0.0150 mg/L Main supplier: SILVERDALE WATER DIST 16 · 35,163 people · 2025 | 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 98383
| Supplier | State | Population served |
|---|---|---|
| SILVERDALE WATER DIST 16 | WA | 35,163 |
Frequently asked questions about ZIP 98383 tap water
Is the tap water in ZIP 98383 safe to drink?
EPA testing detected 14 contaminants across the water suppliers serving ZIP 98383. 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 98383?
1 public water supplier report EPA drinking-water monitoring for ZIP 98383. Each is listed above with its population served.
What contaminants are in ZIP 98383's water?
EPA monitoring detected Nitrate, Nitrate-Nitrite, TTHM, Chromium, Arsenic, and others across this ZIP's suppliers. The full list with levels and sources is above.