What was found in Kenai's water
The level at the city's main supplier, the highest level anywhere in the city, the EPA limit for each, and where every figure comes from.
| Contaminant | Level vs EPA limit | Suppliers | Source |
|---|---|---|---|
| Copper | 58.16 µg/L 4.5% of the EPA limit 1300 µg/L Main supplier: KENAI WATER SYSTEM · 5,700 people · 2013
Highest in the city: 1308.6 µg/L — BEACHSIDE ESTATES · 60 people · 2018 | 4/4 | SYR4 |
| Nitrate | 600 µg/L 6% of the EPA limit 10000 µg/L Highest in the city: BEACHSIDE ESTATES · 60 people · 2018 | 2/4 | SYR4 |
| Fluoride | 455.25 µg/L 11% of the EPA limit 4000 µg/L Main supplier: KENAI WATER SYSTEM · 5,700 people · 2019 | 1/4 | SYR4 |
| Toluene | 65.789 µg/L 6.6% of the EPA limit 1000 µg/L Main supplier: KENAI WATER SYSTEM · 5,700 people · 2019 | 1/4 | SYR4 |
| TTHM | 43.175 µg/L 54% of the EPA limit 80 µg/L Main supplier: KENAI WATER SYSTEM · 5,700 people · 2019 | 1/4 | SYR4 |
| Chloroform | 38.475 µg/L No EPA limit set Main supplier: KENAI WATER SYSTEM · 5,700 people · 2019 | 1/4 | SYR4 |
| Arsenic | 28.9 µg/L 289% of the EPA limit, at the 95th percentile of samples — 10 µg/L Main supplier: KENAI WATER SYSTEM · 5,700 people · 2019 | 2/4 | SYR4 |
| Lead | 2.3015 µg/L 15% of the EPA limit 15 µg/L Main supplier: KENAI WATER SYSTEM · 5,700 people · 2013
Highest in the city: 26.56 µg/L — BEACHSIDE ESTATES · 60 people · 2018 | 4/4 | SYR4 |
| Barium | 22.6 µg/L 1.1% of the EPA limit 2000 µg/L Main supplier: KENAI WATER SYSTEM · 5,700 people · 2019 | 2/4 | SYR4 |
| Total Haloacetic Acids (HAA5) | 22.4 µg/L 37% of the EPA limit 60 µg/L Main supplier: KENAI WATER SYSTEM · 5,700 people · 2019 | 1/4 | SYR4 |
| Dichloroacetic Acid | 11.46 µg/L No EPA limit set Main supplier: KENAI WATER SYSTEM · 5,700 people · 2019 | 1/4 | SYR4 |
| Trichloroacetic Acid | 10.43 µg/L No EPA limit set Main supplier: KENAI WATER SYSTEM · 5,700 people · 2019 | 1/4 | SYR4 |
| Gross Beta Particle Activity | 5.95 pCi/L No EPA limit set Main supplier: KENAI WATER SYSTEM · 5,700 people · 2015 | 1/4 | SYR4 |
| Bromodichloromethane | 4.05 µg/L No EPA limit set Main supplier: KENAI WATER SYSTEM · 5,700 people · 2019 | 1/4 | SYR4 |
| Monochloroacetic Acid | 2.4 µg/L No EPA limit set Main supplier: KENAI WATER SYSTEM · 5,700 people · 2019 | 1/4 | SYR4 |
| Benzene | 1.8 µg/L 36% of the EPA limit 5 µg/L Main supplier: KENAI WATER SYSTEM · 5,700 people · 2019 | 1/4 | SYR4 |
| Styrene | 1.24 µg/L 1.2% of the EPA limit 100 µg/L Highest in the city: GREATLAND VILLAGE PARK · 30 people · 2019 | 1/4 | SYR4 |
| Combined Radium (-226 And -228) | 0.9100 pCi/L 18% of the EPA limit 5 pCi/L Main supplier: KENAI WATER SYSTEM · 5,700 people · 2016
Highest in the city: 1.2 pCi/L — BEACHSIDE ESTATES · 60 people · 2019 | 3/4 | SYR4 |
| Xylenes, Total | 1.2 µg/L 0% of the EPA limit 10000 µg/L Main supplier: KENAI WATER SYSTEM · 5,700 people · 2019 | 1/4 | SYR4 |
| Tetrachloroethylene | 1 µg/L 20% of the EPA limit 5 µg/L Main supplier: KENAI WATER SYSTEM · 5,700 people · 2019 | 1/4 | SYR4 |
| Vinyl Chloride | 0.8000 µg/L 40% of the EPA limit 2 µg/L Main supplier: KENAI WATER SYSTEM · 5,700 people · 2019 | 1/4 | SYR4 |
| Dibromochloromethane | 0.5095 µg/L No EPA limit set Main supplier: KENAI WATER SYSTEM · 5,700 people · 2019 | 1/4 | SYR4 |
| Lead | 0.0 mg/L 0% of the EPA limit 0.0150 mg/L Main supplier: KENAI WATER SYSTEM · 5,700 people · 2023
Highest in the city: 0.0027 mg/L — BEACHSIDE ESTATES · 60 people · 2025 | 4/4 | 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.
These are the utilities' own EPA-reported results, not a city-wide
average. A detection means the lab measured the
substance — it isn't the same as exceeding a legal limit. Hover a source
tag to see the EPA program and years behind each figure.
Water suppliers serving Kenai
| Supplier | Population served |
|---|---|
| KENAI WATER SYSTEM | 5,700 |
| WILLOWBROOK NORTH | 150 |
| BEACHSIDE ESTATES | 60 |
| GREATLAND VILLAGE PARK | 30 |
Frequently asked questions about Kenai tap water
Is Kenai tap water safe to drink?
EPA testing detected 23 contaminants in the water serving Kenai. A detection isn't the same as a violation — most detected levels are within federal limits. Check the level and source for each contaminant above, and your utility's annual Consumer Confidence Report for the official compliance status.
How many water suppliers serve Kenai?
4 public water suppliers report drinking-water monitoring for Kenai, Alaska to the EPA. Each is listed above with its population served.
What contaminants are in Kenai's water?
The contaminants EPA monitoring detected in Kenai include Copper, Nitrate, Fluoride, Toluene, TTHM. The full list, with the level at the main supplier and the data source, is in the table above.
Where does this data come from?
Every figure is official EPA drinking-water monitoring — the Lead & Copper Rule, the UCMR-5 nationwide testing program, and the EPA Six-Year Review — not our own testing. Each number is labelled with its source and period.