What was found in ZIP 98640
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 | 130 µg/L 1.3% of the EPA limit 10000 µg/L Main supplier: NORTH BEACH WATER · 8,093 people · 2019 | 1/1 | SYR4 |
| Nitrate-Nitrite | 130 µg/L 1.3% of the EPA limit 10000 µg/L Main supplier: NORTH BEACH WATER · 8,093 people · 2018 | 1/1 | SYR4 |
| Arsenic | 16 µg/L 160% of the EPA limit, at the 95th percentile of samples — 10 µg/L Main supplier: NORTH BEACH WATER · 8,093 people · 2018 | 1/1 | SYR4 |
| Lithium | 10.9 µg/L No EPA limit set Main supplier: NORTH BEACH WATER · 8,093 people · 2023 | 1/1 | UCMR-5 |
| Gross Beta Particle Activity | 8.75 pCi/L No EPA limit set Main supplier: NORTH BEACH WATER · 8,093 people · 2017 | 1/1 | SYR4 |
| Selenium | 5 µg/L 10% of the EPA limit 50 µg/L Main supplier: NORTH BEACH WATER · 8,093 people · 2018 | 1/1 | SYR4 |
| TTHM | 4.36 µg/L 5.5% of the EPA limit 80 µg/L Main supplier: NORTH BEACH WATER · 8,093 people · 2016 | 1/1 | SYR4 |
| Chloroform | 1.75 µg/L No EPA limit set Main supplier: NORTH BEACH WATER · 8,093 people · 2018 | 1/1 | SYR4 |
| Dichloroacetic Acid | 1.6 µg/L No EPA limit set Main supplier: NORTH BEACH WATER · 8,093 people · 2014 | 1/1 | SYR4 |
| Total Haloacetic Acids (HAA5) | 1.6 µg/L 2.7% of the EPA limit 60 µg/L Main supplier: NORTH BEACH WATER · 8,093 people · 2014 | 1/1 | SYR4 |
| Bromodichloromethane | 1.5 µg/L No EPA limit set Main supplier: NORTH BEACH WATER · 8,093 people · 2018 | 1/1 | SYR4 |
| Dibromochloromethane | 1.4 µg/L No EPA limit set Main supplier: NORTH BEACH WATER · 8,093 people · 2018 | 1/1 | SYR4 |
| Chromium | 1 µg/L 1% of the EPA limit 100 µg/L Main supplier: NORTH BEACH WATER · 8,093 people · 2018 | 1/1 | SYR4 |
| Lead | 0.0200 mg/L 133% above the EPA limit of 0.0150 mg/L Main supplier: NORTH BEACH WATER · 8,093 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 98640
| Supplier | State | Population served |
|---|---|---|
| NORTH BEACH WATER | WA | 8,093 |
Frequently asked questions about ZIP 98640 tap water
Is the tap water in ZIP 98640 safe to drink?
EPA testing detected 14 contaminants across the water suppliers serving ZIP 98640. 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 98640?
1 public water supplier report EPA drinking-water monitoring for ZIP 98640. Each is listed above with its population served.
What contaminants are in ZIP 98640's water?
EPA monitoring detected Nitrate, Nitrate-Nitrite, Arsenic, Lithium, Gross Beta Particle Activity, and others across this ZIP's suppliers. The full list with levels and sources is above.