Waianae Watershed Management Plan

The Board of Water Supply (BWS) and Department of Planning and Permitting (DPP), City and County of Honolulu, have completed the Waianae Watershed Management Plan (WWMP), which will be used to meet the requirement of the State Water Code and City Ordinance to prepare a county water use and development plan. Waianae is one of eight district plans that together will comprise the Oahu Water Management Plan.

Plan Final


To formulate an environmentally holistic, community-based, and economically viable watershed management plan that will provide a balance between:

  • the preservation and restoration of Oahu's watersheds, and
  • sustainable ground water and surface water use and development to serve present users and future generations.

waianae planning process

Plan Area

Waianae District, from Nanakuli to Kaena Point

District Size

38,089 acres; approximately 45,000 people


Nanakuli, Lualualei, Waianae, Makaha, Keaau, Ohikilolo, Makua, Kahanahaiki, Keawaula

waianae district

Community Meetings

The project team held several public “working group” meetings and other forms of consultations with community leaders, community groups and organizations, land owners, and public agencies. To see presentation material or notes from various public meetings, please email the BWS Communications Office at contactus@hbws.org.

For More Information

townscape logo

Townscape, Inc.

Contact: Bruce Tsuchida
Phone: (808) 536-6999
Email: bruce@townscapeinc.com

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Honolulu Board of Water Supply

Contact: Barry Usagawa
Phone: (808) 748-5900
Email: busagawa@hbws.org