What was found in ZIP 98257
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 | 820 µg/L 21% of the EPA limit 4000 µg/L Main supplier: ANACORTES CITY OF · 25,109 people · 2019 | 1/2 | SYR4 |
| TTHM | 29.42 µg/L 37% of the EPA limit 80 µg/L Main supplier: ANACORTES CITY OF · 25,109 people · 2019 | 2/2 | SYR4 |
| Chloroform | 28.34 µg/L No EPA limit set Main supplier: ANACORTES CITY OF · 25,109 people · 2019 | 2/2 | SYR4 |
| Total Haloacetic Acids (HAA5) | 26.9 µg/L 45% of the EPA limit 60 µg/L Main supplier: ANACORTES CITY OF · 25,109 people · 2019 | 2/2 | SYR4 |
| Trichloroacetic Acid | 17.2 µg/L No EPA limit set Main supplier: ANACORTES CITY OF · 25,109 people · 2019 | 2/2 | SYR4 |
| Barium | 13.6 µg/L 0.7% of the EPA limit 2000 µg/L Main supplier: ANACORTES CITY OF · 25,109 people · 2019 | 1/2 | SYR4 |
| Dichloroacetic Acid | 12.14 µg/L No EPA limit set Main supplier: ANACORTES CITY OF · 25,109 people · 2019 | 2/2 | SYR4 |
| Copper | 12 µg/L 0.9% of the EPA limit 1300 µg/L Main supplier: ANACORTES CITY OF · 25,109 people · 2019 | 1/2 | SYR4 |
| Monochloroacetic Acid | 1.57 µg/L No EPA limit set Highest in the ZIP: SHELTER BAY COMMUNITY INC · 2,212 people · 2019 | 1/2 | SYR4 |
| Bromodichloromethane | 1.3 µg/L No EPA limit set Main supplier: ANACORTES CITY OF · 25,109 people · 2019
Highest in the ZIP: 1.54 µg/L — SHELTER BAY COMMUNITY INC · 2,212 people · 2019 | 2/2 | SYR4 |
| Di(2-ethylhexyl) Phthalate | 0.7200 µg/L 12% of the EPA limit 6 µg/L Main supplier: ANACORTES CITY OF · 25,109 people · 2019 | 1/2 | SYR4 |
| Thallium, Total | 0.1700 µg/L 8.5% of the EPA limit 2 µg/L Main supplier: ANACORTES CITY OF · 25,109 people · 2019 | 1/2 | SYR4 |
| Lead | 0.0011 mg/L 7.3% of the EPA limit 0.0150 mg/L Main supplier: ANACORTES CITY OF · 25,109 people · 2022
Highest in the ZIP: 0.0016 mg/L — SHELTER BAY COMMUNITY INC · 2,212 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 98257
| Supplier | State | Population served |
|---|---|---|
| ANACORTES CITY OF | WA | 25,109 |
| SHELTER BAY COMMUNITY INC | WA | 2,212 |
Frequently asked questions about ZIP 98257 tap water
Is the tap water in ZIP 98257 safe to drink?
EPA testing detected 13 contaminants across the water suppliers serving ZIP 98257. 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 98257?
2 public water suppliers report EPA drinking-water monitoring for ZIP 98257. Each is listed above with its population served.
What contaminants are in ZIP 98257's water?
EPA monitoring detected Fluoride, TTHM, Chloroform, Total Haloacetic Acids (HAA5), Trichloroacetic Acid, and others across this ZIP's suppliers. The full list with levels and sources is above.