DOW - Water Quality Information

Your water comes from ground water (underground) sources. Rain that falls in the mountain filters through the ground into formations called aquifers. Wells are drilled into these formations and the water is pumped out. These formations can also be found in the mountains (still considered ground water). Tunnels are constructed to tap these sources.

The quality of groundwater is very good and requires no treatment except for disinfection (as opposed to surface water sources that require filtration and stronger disinfection).

The water supply for the Kalaheo-Koloa water system comes from the following sources:

Kalaheo Area:

Kalaheo Deepwell A

Kalaheo Deepwell B

Lawa'i-Oma'o Area:

Lawa'i Well No. 1

Lawa'i Well No. 2

Piwai Wells No. 2 & 3

Koloa-Po'ipu Area:

Koloa Wells 16-A & 16-B

Koloa Wells C, D, E & F

All of the water is chlorinated and pumped into the distribution system or stored in the following tanks:

Kalaheo Area

Kalaheo Nursery

100,000 gallon tank

Kalaheo Clear Well Storage Tank

300,000 gallon tank

Kalaheo 908 Tank

500,000 gallon tank

Kukuilono #1

250,000 gallon tank

Kukuilono #2

            200,000 gallon tank

            Kakela Maikai
            200,000 gallon tank

Lawa'i-Oma'o Area:

Andrade Tank

30,000 gallon tank

Lawa'i

250,000 gallon tank

Piwai

100,000 gallon tank

Koloa-Po'ipu Area:

Koloa

1,000,000 gallon tank

Koloa (Pa'anao Tank)

250,000 gallon tank

Po'ipu

1,500,000 gallon tanks @ 2 each

Paanau No. 2

500,000 gallon tank

Oma'o Tank

500,000 gallon tank