What was found in ZIP 98857
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-Nitrite | 13744 µg/L 137% of the EPA limit, at the 95th percentile of samples — 10000 µg/L Main supplier: WARDEN CITY OF · 4,674 people · 2018 | 1/1 | SYR4 |
| Nitrate | 5120 µg/L 51% of the EPA limit 10000 µg/L Main supplier: WARDEN CITY OF · 4,674 people · 2019 | 1/1 | SYR4 |
| Fluoride | 826.75 µg/L 21% of the EPA limit 4000 µg/L Main supplier: WARDEN CITY OF · 4,674 people · 2018 | 1/1 | SYR4 |
| TTHM | 26.802 µg/L 34% of the EPA limit 80 µg/L Main supplier: WARDEN CITY OF · 4,674 people · 2019 | 1/1 | SYR4 |
| Barium | 23.75 µg/L 1.2% of the EPA limit 2000 µg/L Main supplier: WARDEN CITY OF · 4,674 people · 2018 | 1/1 | SYR4 |
| Bromoform | 13.61 µg/L No EPA limit set Main supplier: WARDEN CITY OF · 4,674 people · 2019 | 1/1 | SYR4 |
| Dibromochloromethane | 9.7605 µg/L No EPA limit set Main supplier: WARDEN CITY OF · 4,674 people · 2019 | 1/1 | SYR4 |
| Lithium | 9.3 µg/L No EPA limit set Main supplier: WARDEN CITY OF · 4,674 people · 2025 | 1/1 | UCMR-5 |
| Arsenic | 5.7475 µg/L 57% of the EPA limit 10 µg/L Main supplier: WARDEN CITY OF · 4,674 people · 2018 | 1/1 | SYR4 |
| Selenium | 4.81 µg/L 9.6% of the EPA limit 50 µg/L Main supplier: WARDEN CITY OF · 4,674 people · 2018 | 1/1 | SYR4 |
| Copper | 3.497 µg/L 0.3% of the EPA limit 1300 µg/L Main supplier: WARDEN CITY OF · 4,674 people · 2018 | 1/1 | SYR4 |
| Dibromoacetic Acid | 3.1145 µg/L No EPA limit set Main supplier: WARDEN CITY OF · 4,674 people · 2019 | 1/1 | SYR4 |
| Total Haloacetic Acids (HAA5) | 3.1145 µg/L 5.2% of the EPA limit 60 µg/L Main supplier: WARDEN CITY OF · 4,674 people · 2019 | 1/1 | SYR4 |
| Bromodichloromethane | 2.977 µg/L No EPA limit set Main supplier: WARDEN CITY OF · 4,674 people · 2019 | 1/1 | SYR4 |
| Chromium | 1.453 µg/L 1.5% of the EPA limit 100 µg/L Main supplier: WARDEN CITY OF · 4,674 people · 2018 | 1/1 | SYR4 |
| Chloroform | 0.7300 µg/L No EPA limit set Main supplier: WARDEN CITY OF · 4,674 people · 2019 | 1/1 | SYR4 |
| Trichloroethylene | 0.7040 µg/L 14% of the EPA limit 5 µg/L Main supplier: WARDEN CITY OF · 4,674 people · 2019 | 1/1 | SYR4 |
| Lead | 0.2920 µg/L 1.9% of the EPA limit 15 µg/L Main supplier: WARDEN CITY OF · 4,674 people · 2018 | 1/1 | SYR4 |
| Thallium, Total | 0.2745 µg/L 14% of the EPA limit 2 µg/L Main supplier: WARDEN CITY OF · 4,674 people · 2018 | 1/1 | SYR4 |
| Ethylene Dibromide | 0.1164 µg/L 233% of the EPA limit, at the 95th percentile of samples — 0.0500 µg/L Main supplier: WARDEN CITY OF · 4,674 people · 2016 | 1/1 | SYR4 |
| Lead | 0.0 mg/L 0% of the EPA limit 0.0150 mg/L Main supplier: WARDEN CITY OF · 4,674 people · 2024 | 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 98857
| Supplier | State | Population served |
|---|---|---|
| WARDEN CITY OF | WA | 4,674 |
Frequently asked questions about ZIP 98857 tap water
Is the tap water in ZIP 98857 safe to drink?
EPA testing detected 21 contaminants across the water suppliers serving ZIP 98857. 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 98857?
1 public water supplier report EPA drinking-water monitoring for ZIP 98857. Each is listed above with its population served.
What contaminants are in ZIP 98857's water?
EPA monitoring detected Nitrate-Nitrite, Nitrate, Fluoride, TTHM, Barium, and others across this ZIP's suppliers. The full list with levels and sources is above.