← Wailuku, HI

Tap water quality report

ZIP 96732 — Wailuku, HI

EPA monitoring across the 1 water supplier serving ZIP 96732 in Wailuku, HI detected 21 contaminants. A detection doesn't automatically mean the water is unsafe — see the highest level found below, with the EPA limit for each.

1
water supplier
74,511
people served
21
contaminants found

What was found in ZIP 96732

The highest level seen across the suppliers serving this ZIP, the EPA limit for each, and where the figure comes from.

ContaminantLevel vs EPA limitSuppliersSource
Nitrate
3200 µg/L 32%
of the EPA limit 10000 µg/L
1/1 SYR4
Nitrate-Nitrite
3200 µg/L 32%
of the EPA limit 10000 µg/L
1/1 SYR4
Fluoride
480 µg/L 12%
of the EPA limit 4000 µg/L
1/1 SYR4
Copper
50 µg/L 3.8%
of the EPA limit 1300 µg/L
1/1 SYR4
TTHM
35 µg/L 44%
of the EPA limit 80 µg/L
1/1 SYR4
Bromoform
24 µg/L
No EPA limit set
1/1 SYR4
Chloroform
20 µg/L
No EPA limit set
1/1 SYR4
Total Haloacetic Acids (HAA5)
18 µg/L 30%
of the EPA limit 60 µg/L
1/1 SYR4
Barium
14 µg/L 0.7%
of the EPA limit 2000 µg/L
1/1 SYR4
Selenium
12 µg/L 24%
of the EPA limit 50 µg/L
1/1 SYR4
Dichloroacetic Acid
9.3 µg/L
No EPA limit set
1/1 SYR4
Dibromochloromethane
9.2 µg/L
No EPA limit set
1/1 SYR4
Bromodichloromethane
9 µg/L
No EPA limit set
1/1 SYR4
Trichloroacetic Acid
8.6 µg/L
No EPA limit set
1/1 SYR4
Lead
5.5 µg/L 37%
of the EPA limit 15 µg/L
1/1 SYR4
Chromium
4.7 µg/L 4.7%
of the EPA limit 100 µg/L
1/1 SYR4
Dibromoacetic Acid
3.9 µg/L
No EPA limit set
1/1 SYR4
Gross Beta Particle Activity
3.4 pCi/L
No EPA limit set
1/1 SYR4
Gross Alpha, Excl. Radon And U
2.9 pCi/L 19%
of the EPA limit 15 pCi/L
1/1 SYR4
Di(2-ethylhexyl) Phthalate
1.5 µg/L 25%
of the EPA limit 6 µg/L
1/1 SYR4
Lead
0.0 mg/L 0%
of the EPA limit 0.0150 mg/L
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 single worst sample on record — over 100% is worth reading, but is not by itself a violation. Formal violations are listed separately.

Water suppliers serving ZIP 96732

SupplierStatePopulation served
WAILUKU HI 74,511

Frequently asked questions about ZIP 96732 tap water

Is the tap water in ZIP 96732 safe to drink?

EPA testing detected 21 contaminants across the water suppliers serving ZIP 96732. 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 96732?

1 public water supplier report EPA drinking-water monitoring for ZIP 96732. Each is listed above with its population served.

What contaminants are in ZIP 96732's water?

EPA monitoring detected Nitrate, Nitrate-Nitrite, Fluoride, Copper, TTHM, and others across this ZIP's suppliers. The full list with levels and sources is above.