Water System Source

Koloa-Poipu

Where does my water come from?

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 Koloa & Poipu water system comes from the following sources:

            Koloa Well 16-A                            Koloa Well D

            Koloa Well 16-B                            Koloa Well E

            Koloa Well C

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

            Koloa

1,000,000 gallon tank

            Koloa (Paanao)

            250,000 gallon tank

            Omao

            200,000 gallon tank

            Poipu

            1,500,000 gallon tank