Rules for managing water use on Oahu

(a) This section sets forth the policies for water use and development within each development plan area. These are established in recognition of the vital role of water in supporting land use activities on the island of Oahu. Potable groundwater is the premium water resource on Oahu because over the long term, it is the most economical to develop and requires no treatment, but this resource is finite in nature and the limit of feasibly developed potable water sources is rapidly being approached. (b) These policies shall apply to all city agencies in the performance of their powers, duties, and functions as related to both public and private development. (c) In addition, all city actions in regard to the use and commitment of water resources to meet existing or projected demands on the public water system on the island of Oahu shall be guided by the board of water supply’s Oahu water plan. (1) Policy one. Facilities for the provision of water shall be based on the general plan population projections and the land use policies contained in the development plans and depicted on the development plan land use maps. (2) Policy two. System flexibility shall be maintained to facilitate the provision of an adequate supply of water consistent with planned land uses. The municipal water system shall be developed and operated substantially as an integrated islandwide water system. (3) Policy three. Close coordination shall be maintained between federal, State, and county agencies which are involved in the provision or management of water to ensure optimal distribution of the available water supply. (4) Policy four. The quality and integrity of the water supply shall be maintained by providing for the monitoring and protection of the water supply in accordance with the requirements of the State water code. (5) Policy five. The development and use of nonpotable water sources shall be maximized in a manner consistent with the protection of the groundwater quality. (6) Policy six. Water conservation shall be strongly encouraged. (7) Policy seven. Alternative water sources shall be developed wherever feasible to ensure an adequate supply of water for planned uses on Oahu.