ISLAND SUSTÊ»ÄINABILITY: WATER BUDGET STUDY FOR MOKU-O-LOE (COCONUT ISLAND)
Lelemia Irvine, Oceana P. Francis.
University of Hawaiâ€™i at MÄnoa, Honolulu, HI.
Island SustÊ»Äinability is a conscious movement within the Hawaiâ€™ian Isles to find human, environmental, and cultural harmony. There are many islets off the coast of OÊ»ahu, only 2 of which are inhabitable. Moku-o-Loe is the proper Hawaiian name for a 28-acre island off the coast of KÄneÊ»ohe Bay, OÊ»ahu that houses a premier marine biology institute. The institute envisions Moku-o-Loe to be an independent island and model of sustÊ»Äinability in water, waste, and energy. A water budget study pertaining to island potable and non-potable uses will be presented. An initial site visit found 26 buildings as potential sites for rainwater harvesting. Later site visits evaluated roof catchment area (62,096.28 ft2 of available roof space) and roofing materials for the potential for rainwater harvesting. This information combined with available island rainfall data and water supply/demand evaluations were used to estimate tank size and treatment needs. Recommendations and cost/benefit analysis will be presented on best available sustainable island engineering and management practices in rainwater harvesting and catchment systems to meet the instituteâ€™s water needs. Moku-o-Loe hopes to serve as a model to mainland OÊ»ahu in water resources sustÊ»Äinability and innovation.