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Tap water quality report

ZIP 96734 — Honolulu-Windward-Pearlharbor, HI

EPA monitoring across the 2 water suppliers serving ZIP 96734 in Honolulu-Windward-Pearlharbor, HI detected 25 contaminants. A detection doesn't automatically mean the water is unsafe — see the highest level found below, with the EPA limit for each.

2
water suppliers
647,689
people served
25
contaminants found

What was found in ZIP 96734

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
2400 µg/L 24%
of the EPA limit 10000 µg/L
 1/2 SYR4
Nitrate-Nitrite
2400 µg/L 24%
of the EPA limit 10000 µg/L
 1/2 SYR4
Copper
1298 µg/L 100%
of the EPA limit 1300 µg/L
 2/2 SYR4
Lead
126.4 µg/L 843%
of the EPA limit, in the worst sample — 15 µg/L
 2/2 SYR4
Fluoride
84 µg/L 2.1%
of the EPA limit 4000 µg/L
 1/2 SYR4
Barium
20 µg/L 1%
of the EPA limit 2000 µg/L
 1/2 SYR4
Bromoform
17 µg/L
No EPA limit set
 2/2 SYR4
TTHM
17 µg/L 21%
of the EPA limit 80 µg/L
 2/2 SYR4
Selenium
8 µg/L 16%
of the EPA limit 50 µg/L
 1/2 SYR4
Chromium
6.1 µg/L 6.1%
of the EPA limit 100 µg/L
 1/2 SYR4
Gross Alpha, Excl. Radon And U
5.4 pCi/L 36%
of the EPA limit 15 pCi/L
 1/2 SYR4
Gross Beta Particle Activity
5.4 pCi/L
No EPA limit set
 1/2 SYR4
Di(2-ethylhexyl) Phthalate
3.8 µg/L 63%
of the EPA limit 6 µg/L
 1/2 SYR4
Combined Uranium
2.086 µg/L 7%
of the EPA limit 30 µg/L
 1/2 SYR4
Arsenic
1.8 µg/L 18%
of the EPA limit 10 µg/L
 1/2 SYR4
Dibromochloromethane
1.6 µg/L
No EPA limit set
 2/2 SYR4
Antimony, Total
1.5 µg/L 25%
of the EPA limit 6 µg/L
 1/2 SYR4
Dibromoacetic Acid
1.5 µg/L
No EPA limit set
 2/2 SYR4
Dichloroacetic Acid
1.3 µg/L
No EPA limit set
 1/2 SYR4
Total Haloacetic Acids (HAA5)
1.2 µg/L 2%
of the EPA limit 60 µg/L
 1/2 SYR4
Trichloroacetic Acid
1.2 µg/L
No EPA limit set
 1/2 SYR4
Chlordane
0.6000 µg/L 30%
of the EPA limit 2 µg/L
 1/2 SYR4
Heptachlor Epoxide
0.0280 µg/L 14%
of the EPA limit 0.2000 µg/L
 1/2 SYR4
PFHXS
0.0030 µg/L
No EPA limit set
 1/2 UCMR-5
Lead
0.0 mg/L 0%
of the EPA limit 0.0150 mg/L
 2/2 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 96734

SupplierStatePopulation served
HNL-WINDWARD-PEARL HARBOR HI 631,389
MARINE CORPS BASE HAWAII HI 16,300

Frequently asked questions about ZIP 96734 tap water

Is the tap water in ZIP 96734 safe to drink?

EPA testing detected 25 contaminants across the water suppliers serving ZIP 96734. 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 96734?

2 public water suppliers report EPA drinking-water monitoring for ZIP 96734. Each is listed above with its population served.

What contaminants are in ZIP 96734's water?

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