KIHEI EFFLUENT REUSE SYSTEM
County of Maui
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New improvements included in the Core System project were designed to operate in concert with the existing facilities, and are also capable of functioning under expanded operating conditions as the plant capacity is increased in the future. The new improvements include a 1.0 million gallon reinforced concrete reservoir constructed with an aluminum geodesic dome cover, and an 18-inch ductile iron pipeline to connect the reservoir to the reclamation facility.

1.0 Million Gallon Concrete Reservoir

The dome cover eliminated the need for interior columns and footings within the reservoir, and the resulting cost savings allowed for the installation of a high quality tank lining system. The storage and transmission system is also equipped with remote pressure and flow sensors and level controls that communicate with the Kihei WWRF control station. Due to the reservoir’s remote location, level sensors at the tank utilize solar powered radio transmitters to communicate with the WWRF control station, thus eliminating the need for conventional power and communication lines. The telemetry system enables system operation and status checks through the plant’s Supervisory Control and Data Acquisition (SCADA) System.

 

The Core System was put into operation prior to being fully completed so that it could continue to serve Monsanto Corporation’s seed corn operations and the Elleair Golf Course. Cooperation between effluent consumers, the County and the Contractor, Hawaiian Dredging Construction Company, allowed virtually uninterrupted service during the construction period. The total project construction cost for the Kihei Effluent Reuse Core System was $3.2 million. Total project construction time was 12 months with the project substantially completed in April 1998.

Monsanto Corporation seed corn field

 

Kihei Effluent Reuse Distribution System, Phase I Community interest in utilizing reclaimed effluent and the surplus funding available from the initial project prompted the County to extend the effluent distribution capability of the Kihei Effluent Reuse Core System. The Kihei Effluent Distribution System, Phase I was initiated during the construction phase of the Core System. Planning, design and bidding of the project was accomplished prior to the completion of construction for the Effluent Reuse Core Project. One of the goals of the project was to complete construction of the distribution system before to the completion of the Kihei Community Center, allowing the effluent to be used for the establishment of the playfields being constructed at the Center.

Kihei Community Center Playfield

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