What was found in ZIP 98563
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 |
|---|---|---|---|
| Fluoride | 1731.5 µg/L 43% of the EPA limit 4000 µg/L Main supplier: MONTESANO CITY OF · 6,204 people · 2019 | 1/2 | SYR4 |
| Nitrate | 1465 µg/L 15% of the EPA limit 10000 µg/L Main supplier: MONTESANO CITY OF · 6,204 people · 2019 | 1/2 | SYR4 |
| Nitrate-Nitrite | 1400 µg/L 14% of the EPA limit 10000 µg/L Main supplier: MONTESANO CITY OF · 6,204 people · 2019 | 1/2 | SYR4 |
| Copper | 50 µg/L 3.8% of the EPA limit 1300 µg/L Main supplier: MONTESANO CITY OF · 6,204 people · 2019
Highest in the ZIP: 310 µg/L — GRAYS HARBOR CO WATER DIST 2 · 5,112 people · 2017 | 2/2 | SYR4 |
| Lead | 1.95 µg/L 13% of the EPA limit 15 µg/L Main supplier: MONTESANO CITY OF · 6,204 people · 2019
Highest in the ZIP: 13 µg/L — GRAYS HARBOR CO WATER DIST 2 · 5,112 people · 2017 | 2/2 | SYR4 |
| TTHM | 2.174 µg/L 2.7% of the EPA limit 80 µg/L Main supplier: MONTESANO CITY OF · 6,204 people · 2019 | 2/2 | SYR4 |
| Bromoform | 1.4 µg/L No EPA limit set Main supplier: MONTESANO CITY OF · 6,204 people · 2019 | 1/2 | SYR4 |
| Mercury | 1 µg/L 50% of the EPA limit 2 µg/L Highest in the ZIP: GRAYS HARBOR CO WATER DIST 2 · 5,112 people · 2017 | 1/2 | SYR4 |
| Dibromochloromethane | 0.8610 µg/L No EPA limit set Main supplier: MONTESANO CITY OF · 6,204 people · 2019 | 2/2 | SYR4 |
| Bromodichloromethane | 0.5700 µg/L No EPA limit set Main supplier: MONTESANO CITY OF · 6,204 people · 2019 | 2/2 | SYR4 |
| Chloroform | 0.4000 µg/L No EPA limit set Main supplier: MONTESANO CITY OF · 6,204 people · 2019 | 2/2 | SYR4 |
| Lead | 0.0036 mg/L 24% of the EPA limit 0.0150 mg/L Main supplier: MONTESANO CITY OF · 6,204 people · 2025
Highest in the ZIP: 0.0064 mg/L — GRAYS HARBOR CO WATER DIST 2 · 5,112 people · 2025 | 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 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 98563
| Supplier | State | Population served |
|---|---|---|
| MONTESANO CITY OF | WA | 6,204 |
| GRAYS HARBOR CO WATER DIST 2 | WA | 5,112 |
Frequently asked questions about ZIP 98563 tap water
Is the tap water in ZIP 98563 safe to drink?
EPA testing detected 12 contaminants across the water suppliers serving ZIP 98563. 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 98563?
2 public water suppliers report EPA drinking-water monitoring for ZIP 98563. Each is listed above with its population served.
What contaminants are in ZIP 98563's water?
EPA monitoring detected Fluoride, Nitrate, Nitrate-Nitrite, Copper, Lead, and others across this ZIP's suppliers. The full list with levels and sources is above.