KO‘OLAU POKO WATERSHED MANAGEMENT PLAN PREPARED FOR: HONOLULU BOARD OF WATER SUPPLY PREPARED BY: TOWNSCAPE, INC. SEPTEMBER 2012 This page intentionally left blank. CITY COUNCIL ORDINANCE 12—30 ~ ~ BILL 48 (2012), CDI A BILL FOR AN ORDINANCE TO AMEND THE OAHU WATER MANAGEMENT PLAN. BE IT ORDAINED by the People of the City and County of Honolulu: SECTION 1. Purpose and Intent. The purpose of this ordinance is to amend a portion of the Oahu Water Management Plan (OWMP), enacted by Ordinance 90-62 and codified as Chapter 30, Articles 1, 2, 2A, 2B, and 3, Revised Ordinances of Honolulu (ROH) 1990, as amended, by adopting the Ko’olau Poko Watershed Management Plan. The Ko’olau Poko Watershed Management Plan provides a long-range 20-year plan for the preservation, restoration, and balanced management of ground water, surface water, and related watershed resources in the Ko’olau Poko District. The Ko’olau Poko Watershed Management Plan is one of several regional Watershed Management Plans that will, together with islandwide water management policies and strategies in Article 2 of ROH Chapter 30, form the updated Oahu Water Management Plan. SECTION 2. Chapter 30, ROH 1990, as amended, is amended by adding a new Article 2C to read as follows: ‘Article 2C. Ko’olau Poko Watershed Management Plan Sec. 30-2C1 Applicability. This article applies to the Ko’olau Poko district, which is described in the Ko’olau Poko watershed management plan. This article supplements Article 2 with respect to the Ko’olau Poko district. Sec. 30-2C.2 Adoption of the Ko’olau Poko watershed management plan. Pursuant to Hawaii Revised Statutes Chapter 174C, the plan entitled “Ko’olau Poko Watershed Management Plan,” dated February 2012, attached to this ordinance as Exhibit A, is hereby adopted and by reference is incorporated herein as a regional watershed management plan for Oahu. Exhibit A need not be included in this code. 0CS1070312103:46CT 1 12—30 ORDINANCE 12—30 CITY COUNCIL CITY AND COUNTY OF HONOLULU HONOLULU, HAWAII BILL 48 (2012). CDI A BILL FOR AN ORDINANCE Sec. 30-2C3 Conflicting provisions. Any provision contained in this article shall, with respect to the Ko’olau Poko district, prevail should there be any conflict with any other provisions of Article 1 or 2 of this chapter.” SECTION 3. This ordinance shall take effect upon its approval. INTRODUCED BY: Ernest Martin (BR) DATE OF INTRODUCTION: May 30, 2012 Honolulu, Hawaii Council members APPROVED AS TO FORM AND LEGALITY: Deputy Corporation Co nsel APPROVED this _____ day of _________ 20 p2— PE7’ER B. CP~RLISLE,Mayor City and County of Honolulu 2 12—30 CITY COUNCIL CITYAND COUNTY OF HONOLULU HONOLULU, HAWAII CE RT IF I CATE ORDINANCE 12—30 BILL 48 (2012), CDI Introduced: 05/30/12 By: ERNEST MARTIN (BR) Committee: ZONING AND PLANNING Title: A BILL FOR AN ORDINANCE TO AMEND THE OAHU WATER MANAGEMENT PLAN. L inks: BILL 48 (2012) BILL 48 (2012), CD1 CR-230 CR-269 Voting Legend: Y= Aye, Y* = Aye w/Reservations, N = No, A = Absent, ABN = Abstain COUNCIL 06/06/12 BILL PASSED FIRST READING AND REFERRED TO COMMITTEE ON ZONING AND PLANNING. ANDERSON Y BERG Y CACHOLA Y CHANG Y GABBARD Y GARCIA Y HARIMOTO Y KOBAYASHI Y MARTIN Y ZONING AND 06/28/12 CR-230 — BILL REPORTED OUT OF COMMITTEE FOR PASSAGE ON SECOND PLANNING READING AS AMENDED IN CD1 FORM AND SCHEDULING OF A PUBLIC HEARING. PUBLISH 06/30/12 PUBLIC HEARING NOTICE PUBLISHED IN THE HONOLULU STAR-ADVERTISER. COUNCIL/PUBLIC 07/11/12 CR-230 ADOPTED. BILL PASSED SECOND READING AS AMENDED, PUBLIC HEARING HEARING CLOSED AND REFERRED TO COMMITTEE ON ZONING AND PLANNING. ANDERSON A BERG Y CACHOLA Y CHANG Y GABBARD A GARCIA Y HARIMOTO Y KOBAYASHI Y MARTIN Y PUBLISH 07/21/12 SECOND READING NOTICE PUBLISHED IN THE HONOLULU STAR-ADVERTISER. ZONING AND 07/26/12 CR-269 — BILL REPORTED OUT OF COMMITTEE FOR PASSAGE ON THIRD READING. PLANNING COUNCIL 08/15/12 CR-269 ADOPTED AND BILL 48 (2012), CD1 PASSED THIRD READING. ANDERSON Y BERG Y CACHOLA Y CHANG Y GABBARD Y GARCIA Y HARIMOTO Y KOBAYASHI Y MARTIN Y I hereby certify th e above is a true record of action by the Council of the 12—30 This page intentionally left blank. KO‘OLAU POKO WATERSHED MANAGEMENT PLAN PREPARED FOR: HONOLULU BOARD OF WATER SUPPLY PREPARED BY: TOWNSCAPE, INC. SEPTEMBER 2012 THIS PUBLICATION IS DESIGNED TO PROVIDE GENERAL INFORMATION PREPARED BY PROFESSIONALS IN REGARD TO THE SUBJECT MATTER COVERED. IT IS PROVIDED WITH THE UNDERSTANDING THAT THE PUBLISHER, AUTHORS, AND EDITORS ARE NOT ENGAGED IN RENDERING LEGAL OR OTHER PROFESSIONAL SERVICE HEREIN. DUE TO THE RAPIDLY CHANGING NATURE OF THE LAW, INFORMATION CONTAINED IN THIS PUBLICATION MAY BECOME OUTDATED. ALTHOUGH PREPARED BY PROFESSIONALS, THIS PUBLICATION SHOULD NOT BE UTILIZED BY A LAWYER AS A SUBSTITUTE FOR HIS OR HER OWN RESEARCH. THE LAWYER IS SOLELY RESPONSIBLE FOR ANALYZING AND UPDATING THE INFORMATION TO ENSURE ACCURACY. THIS PUBLICATION SHOULD NOT BE USED BY NON-LAWYERS AS A SUBSTITUTE FOR PROFESSIONAL LEGAL OR OTHER ADVICE. IF LEGAL ADVICE OR OTHER EXPERT ASSISTANCE IS REQUIRED, THE SERVICES OF A PROFESSIONAL SHOULD BE SOUGHT. THE PUBLISHER, AUTHORS, AND EDITORS SPECIFICALLY DISCLAIM ANY LIABILITY, LOSS OR RISK INCURRED AS A RESULT OF THE USE AND APPLICATION, EITHER DIRECTLY OR INDIRECTLY, OF ANY INFORMATION CONTAINED IN THIS PUBLICATION, WHETHER OR NOT NEGLIGENTLY PROVIDED. ALL PROCEDURES AND FORMS ARE SUGGESTIONS ONLY, AND CHANGES MUST BE MADE DEPENDING ON THE SPECIFIC CIRCUMSTANCES IN EACH CASE. TABLE OF CONTENTS This page intentionally left blank. TABLE OF CONTENTS TABLE OF CONTENTS EXECUTIVE SUMMARY FOR THE PUBLIC REVIEW DRAFT ..................................... ES-1 ES.1 PURPOSE OF THE KOÿOLAU POKO WATERSHED MANAGEMENT PLAN ......................................................................... ES-1 ES.2 THE KPWMP AND THE KOÿOLAU POKO SUSTAINABLE COMMUNITIES PLAN .......................................................................... ES-2 ES.3 THE PLANNING PROCESS .................................................................. ES-3 ES.4 GOALS AND OBJECTIVES OF THE KPWMP ........................................ ES-4 ES.5 SUMMARY PROFILE OF THE DISTRICT .............................................. ES-4 ES.6 WATER USE AND PROJECTED DEMAND ............................................. ES-7 ES.7 PROJECTS AND STRATEGIES .............................................................. ES-8 ES.8 IMPLEMENTATION OF THE KPWMP ................................................ ES-15 1 OÿAHU WATER MANAGEMENT PLAN OVERVIEW ........................................ 1-1 1.1 AUTHORITY AND PURPOSE ................................................................ 1-1 1.2 OÿAHU WATER MANAGEMENT PLAN FRAMEWORK .......................... 1-6 1.3 OÿAHU WATER USE AND DEVELOPMENT PLAN UPDATE ................ 1-15 1.4 PLAN IMPLEMENTATION ................................................................... 1-50 2 KOÿOLAU POKO WATERSHED PROFILE ........................................................ 2-1 2.1 INTRODUCTION .................................................................................. 2-1 2.2 METHODOLOGY ................................................................................. 2-1 2.3 PHYSICAL SETTING ............................................................................. 2-2 2.4 WATER RESOURCES ........................................................................... 2-10 2.5 TERRESTRIAL ECOSYSTEM .................................................................. 2-49 2.6 TRADITIONAL PRACTICES AND CULTURAL RESOURCES ................. 2-52 2.7 SETTLEMENT HISTORY ....................................................................... 2-57 2.8 DEMOGRAPHIC CHARACTERISTICS ................................................... 2-64 2.9 LAND USE ........................................................................................... 2-66 2.10 PREVIOUS RELEVANT PLANS ............................................................. 2-73 2.11 STAKEHOLDER CONSULTATION ........................................................ 2-78 KOÿOLAU POKO WATERSHED MANAGEMENT PLAN -i- TABLE OF CONTENTS TABLE OF CONTENTS (continued) 3 WATER USE AND PROJECTED DEMAND ....................................................... 3-1 3.1 WATER AVAILABILITY AND USE IN THE KOÿOLAU POKO DISTRICT . 3-1 3.2 WATER SUPPLY SYSTEMS IN KO‘OLAU POKO ...................................... 3-9 3.3 PROJECTING FUTURE WATER DEMANDS ......................................... 3-26 3.4 SELECTED DEMAND SCENARIO .......................................................... 3-49 3.5 IMPLICATIONS FOR WATER SUPPLY PLANNING .............................. 3-50 4 PLAN OBJECTIVES, WATER SUPPLY AND WATERSHED MANAGEMENT PROJECTS AND STRATEGIES ........................................................................... 4-1 4.1 OVERALL GOAL, OBJECTIVES, AND SUBOBJECTIVES OF THE KPWMP 4-1 4.2 WATER SUPPLY AND WATERSHED MANAGEMENT PROJECTS AND PROGRAMS WITH “PROJECTS CHAMPIONS” ..................................... 4-6 4.3 WATERSHED MANAGEMENT STRATEGIES ...................................... 4-121 5 IMPLEMENTATION .......................................................................................... 5-1 5.1 INTRODUCTION ................................................................................... 5-1 5.2 WATER USE AND DEVELOPMENT PLAN ............................................. 5-2 5.3 PHASING AND FUNDING OF PROJECTS WITH CHAMPIONS .......... 5-14 5.4 WATERSHED MANAGEMENT – CRITICAL WATERSHEDS AND CATALYST PROJECTS ............................................................................................