What was found in ZIP 99901
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 |
|---|---|---|---|
| Copper | 298.1 µg/L 23% of the EPA limit 1300 µg/L Main supplier: KETCHIKAN PUBLIC UTILITIES · 8,937 people · 2018 | 1/1 | SYR4 |
| Total Haloacetic Acids (HAA5) | 146.7 µg/L 244% of the EPA limit, at the 95th percentile of samples — 60 µg/L Main supplier: KETCHIKAN PUBLIC UTILITIES · 8,937 people · 2019 | 1/1 | SYR4 |
| Nitrate-Nitrite | 114 µg/L 1.1% of the EPA limit 10000 µg/L Main supplier: KETCHIKAN PUBLIC UTILITIES · 8,937 people · 2018 | 1/1 | SYR4 |
| Trichloroacetic Acid | 92.49 µg/L No EPA limit set Main supplier: KETCHIKAN PUBLIC UTILITIES · 8,937 people · 2019 | 1/1 | SYR4 |
| TTHM | 87.07 µg/L 109% of the EPA limit, at the 95th percentile of samples — 80 µg/L Main supplier: KETCHIKAN PUBLIC UTILITIES · 8,937 people · 2019 | 1/1 | SYR4 |
| Chloroform | 83.485 µg/L No EPA limit set Main supplier: KETCHIKAN PUBLIC UTILITIES · 8,937 people · 2019 | 1/1 | SYR4 |
| Dichloroacetic Acid | 51.775 µg/L No EPA limit set Main supplier: KETCHIKAN PUBLIC UTILITIES · 8,937 people · 2019 | 1/1 | SYR4 |
| Lead | 9.335 µg/L 62% of the EPA limit 15 µg/L Main supplier: KETCHIKAN PUBLIC UTILITIES · 8,937 people · 2018 | 1/1 | SYR4 |
| Monochloroacetic Acid | 5.34 µg/L No EPA limit set Main supplier: KETCHIKAN PUBLIC UTILITIES · 8,937 people · 2019 | 1/1 | SYR4 |
| Monobromoacetic Acid | 3.045 µg/L No EPA limit set Main supplier: KETCHIKAN PUBLIC UTILITIES · 8,937 people · 2019 | 1/1 | SYR4 |
| Bromodichloromethane | 1.8 µg/L No EPA limit set Main supplier: KETCHIKAN PUBLIC UTILITIES · 8,937 people · 2019 | 1/1 | SYR4 |
| Gross Beta Particle Activity | 0.4800 pCi/L No EPA limit set Main supplier: KETCHIKAN PUBLIC UTILITIES · 8,937 people · 2016 | 1/1 | SYR4 |
| Lead | 0.0025 mg/L 17% of the EPA limit 0.0150 mg/L Main supplier: KETCHIKAN PUBLIC UTILITIES · 8,937 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 99901
| Supplier | State | Population served |
|---|---|---|
| KETCHIKAN PUBLIC UTILITIES | AK | 8,937 |
Frequently asked questions about ZIP 99901 tap water
Is the tap water in ZIP 99901 safe to drink?
EPA testing detected 13 contaminants across the water suppliers serving ZIP 99901. 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 99901?
1 public water supplier report EPA drinking-water monitoring for ZIP 99901. Each is listed above with its population served.
What contaminants are in ZIP 99901's water?
EPA monitoring detected Copper, Total Haloacetic Acids (HAA5), Nitrate-Nitrite, Trichloroacetic Acid, TTHM, and others across this ZIP's suppliers. The full list with levels and sources is above.