Hawaiian Springs is bottled at the source. The well system (designated as Well #3802-6) was built in 1981 and is equipped with a 10" inside diameter casing. The well system is 251.22 feet deep and the pump intake is at a depth of 241'. An engineering report was prepared by Akinaka & Associates of Honolulu, Hawaii and Island Resources of Kamuela, Hawaii.

The site is located on the slopes of Mauna Loa and Kilauea Volcanoes. Because both of them are active, the geologic time interval between lava flows is quite short and lasting tens of thousands of years. The short time span between flows precludes significant weathering and soil formation.

Rainfall at Kea'au averages 143 inches or about 3,000,000 gallons per acre, per year. There are no perennial streams nor defined stream channels within miles of Kea'au. The extremely thin, permeable igneous rock underlying the area precludes the formation of streams in spite of the significant rainfall. These unique conditions are found only within the State of Hawaii on the Big Island and to a large degree, are the result of relatively frequent inundation by lava flows.
          
Our source is a large ground water body between the village of Pahoa to the south, and the city of Hilo to the north of Kea'au. This aquifer lies near sea level and is described as a basal lens. The absence of surface streams indicates that the rainfall not consumed by evapotranspiration, freely percolates downward to recharge the aquifer.