What was found in Wahiawa'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 |
|---|---|---|---|
| Nitrate | 920 µg/L 9.2% of the EPA limit 10000 µg/L Main supplier: NCTAMS EASTPAC · 6,470 people · 2019
Highest in the city: 1400 µg/L — KUNIA VILLAGE · 650 people · 2019 | 3/4 | SYR4 |
| Nitrate-Nitrite | 891 µg/L 8.9% of the EPA limit 10000 µg/L Main supplier: NCTAMS EASTPAC · 6,470 people · 2018
Highest in the city: 1370 µg/L — KUNIA VILLAGE · 650 people · 2019 | 3/4 | SYR4 |
| Copper | 248.5 µg/L 19% of the EPA limit 1300 µg/L Main supplier: NCTAMS EASTPAC · 6,470 people · 2018
Highest in the city: 1013 µg/L — POAMOHO · 25 people · 2018 | 3/4 | SYR4 |
| Fluoride | 798 µg/L 20% of the EPA limit 4000 µg/L Main supplier: NCTAMS EASTPAC · 6,470 people · 2019 | 1/4 | SYR4 |
| Lead | 11 µg/L 73% of the EPA limit 15 µg/L Highest in the city: POAMOHO · 25 people · 2018 | 2/4 | SYR4 |
| TTHM | 3.47 µg/L 4.3% of the EPA limit 80 µg/L Main supplier: NCTAMS EASTPAC · 6,470 people · 2019
Highest in the city: 6.46 µg/L — KUNIA VILLAGE · 650 people · 2019 | 3/4 | SYR4 |
| Bromoform | 1.76 µg/L No EPA limit set Main supplier: NCTAMS EASTPAC · 6,470 people · 2019
Highest in the city: 4.13 µg/L — KUNIA VILLAGE · 650 people · 2019 | 3/4 | SYR4 |
| Barium | 2.8 µg/L 0.1% of the EPA limit 2000 µg/L Main supplier: NCTAMS EASTPAC · 6,470 people · 2017 | 1/4 | SYR4 |
| Dibromochloromethane | 1.75 µg/L No EPA limit set Main supplier: NCTAMS EASTPAC · 6,470 people · 2019
Highest in the city: 2.45 µg/L — KUNIA VILLAGE · 650 people · 2019 | 3/4 | SYR4 |
| Chromium | 2.3355 µg/L 2.3% of the EPA limit 100 µg/L Highest in the city: POAMOHO · 25 people · 2017 | 1/4 | SYR4 |
| Monobromoacetic Acid | 1.5 µg/L No EPA limit set Highest in the city: KUNIA VILLAGE · 650 people · 2019 | 2/4 | SYR4 |
| Total Haloacetic Acids (HAA5) | 1.5 µg/L 2.5% of the EPA limit 60 µg/L Highest in the city: CAMP STOVER · 595 people · 2019 | 2/4 | SYR4 |
| Bromodichloromethane | 1.3 µg/L No EPA limit set Highest in the city: KUNIA VILLAGE · 650 people · 2019 | 1/4 | SYR4 |
| Dibromoacetic Acid | 1 µg/L No EPA limit set Highest in the city: KUNIA VILLAGE · 650 people · 2019 | 1/4 | SYR4 |
| 1,2-DIBROMO-3-CHLOROPROPANE | 0.0110 µg/L 5.5% of the EPA limit 0.2000 µg/L Highest in the city: KUNIA VILLAGE · 650 people · 2019 | 1/4 | SYR4 |
| Lead | 0.0 mg/L 0% of the EPA limit 0.0150 mg/L Main supplier: NCTAMS EASTPAC · 6,470 people · 2021 | 4/4 | LCR |
Water suppliers serving Wahiawa
| Supplier | Population served |
|---|---|
| NCTAMS EASTPAC | 6,470 |
| KUNIA VILLAGE | 650 |
| CAMP STOVER | 595 |
| POAMOHO | 25 |
Frequently asked questions about Wahiawa tap water
Is Wahiawa tap water safe to drink?
EPA testing detected 16 contaminants in the water serving Wahiawa. 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 Wahiawa?
4 public water suppliers report drinking-water monitoring for Wahiawa, Hawaii to the EPA. Each is listed above with its population served.
What contaminants are in Wahiawa's water?
The contaminants EPA monitoring detected in Wahiawa include Nitrate, Nitrate-Nitrite, Copper, Fluoride, Lead. 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.