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Tap water quality report

Ninole, HI

EPA monitoring detected 12 contaminants across the 1 water supplier serving Ninole. A detection doesn't automatically mean the water is unsafe — see the level at the main supplier for each below, with its EPA source and period.

1
water supplier
151
people served
12
contaminants found
Hawaii rankings Lead in Hawaii PFAS in Hawaii

What was found in Ninole'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.

ContaminantLevel vs EPA limitSuppliersSource
Copper
349.6 µg/L 27%
of the EPA limit 1300 µg/L
Main supplier: NINOLE · 151 people · 2019
1/1 SYR4
Lead
69.6 µg/L 464%
of the EPA limit, at the 95th percentile of samples — 15 µg/L
Main supplier: NINOLE · 151 people · 2019
1/1 SYR4
TTHM
7.16 µg/L 9%
of the EPA limit 80 µg/L
Main supplier: NINOLE · 151 people · 2019
1/1 SYR4
Gross Alpha, Excl. Radon And U
4.9 pCi/L 33%
of the EPA limit 15 pCi/L
Main supplier: NINOLE · 151 people · 2016
1/1 SYR4
Gross Beta Particle Activity
3.2 pCi/L
No EPA limit set
Main supplier: NINOLE · 151 people · 2016
1/1 SYR4
Bromodichloromethane
2.62 µg/L
No EPA limit set
Main supplier: NINOLE · 151 people · 2019
1/1 SYR4
Chloroform
2.31 µg/L
No EPA limit set
Main supplier: NINOLE · 151 people · 2019
1/1 SYR4
Dibromochloromethane
2.23 µg/L
No EPA limit set
Main supplier: NINOLE · 151 people · 2019
1/1 SYR4
Total Haloacetic Acids (HAA5)
1.7 µg/L 2.8%
of the EPA limit 60 µg/L
Main supplier: NINOLE · 151 people · 2019
1/1 SYR4
Trichloroacetic Acid
1.7 µg/L
No EPA limit set
Main supplier: NINOLE · 151 people · 2019
1/1 SYR4
Atrazine
0.1650 µg/L 5.5%
of the EPA limit 3 µg/L
Main supplier: NINOLE · 151 people · 2019
1/1 SYR4
Lead
0.0 mg/L 0%
of the EPA limit 0.0150 mg/L
Main supplier: NINOLE · 151 people · 2022
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. 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 Ninole

SupplierPopulation served
NINOLE 151

Frequently asked questions about Ninole tap water

Is Ninole tap water safe to drink?

EPA testing detected 12 contaminants in the water serving Ninole. 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 Ninole?

1 public water supplier report drinking-water monitoring for Ninole, Hawaii to the EPA. Each is listed above with its population served.

What contaminants are in Ninole's water?

The contaminants EPA monitoring detected in Ninole include Copper, Lead, TTHM, Gross Alpha, Excl. Radon And U, Gross Beta Particle Activity. 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.