Island of O‘ahu

The Commission’s efforts to develop instream flow standards on the Island of O‘ahu are captured here. Maui is divided into six regions: Ko‘olau Loa, Ko‘olau Poko, Honolulu, ‘Ewa, Wai‘anae, and Waialua. Each region is further divided into individual surface water hydrologic units. Each unit has it own unique, 4-digit surface water hydrologic unit (SWHU) code. The tables are organized by regions (click on each drop-down below) and SWHU Code, and contain links to the resource pages that provide further details and information on the development of instream flow standards for each unit. Some instream flow standards were developed administratively by the Commission and its staff, while others were arrived at by way of a contested case hearing.

This page is still under construction and will continue to be revised and updated.

Click to View Ko‘olau Loa Region Units

SWHU Code
Instream Flow Standard Resource Links
3001 Kalunawaikaala
3002 Pakulena
3003 Paumalu
3004 Kawela
3005 Oio
3006 Malaekahana
3007 Kahawainui
3008 Wailele
3009 Koloa
3010 Kaipapau
3011 Ma‘akua
3012 Waipuhi
3013 Kaluanui
3014 Papa‘akoko
3015 Haleha‘a
3016 Punalu‘u
3017

Kahana

3018 Makaua
3019 Ka‘a‘awa
3020 Kualoa

Click to View Honolulu Region Units

SWHU Code
Instream Flow Standard Development Resources
3037 Makapu‘u
3038 Koko Crater
3039 Hanauma
3040 Portlock
3041 Kamiloiki
3042 Kamilonui
3043 Hahaione
3044 Kuliouou
3045 Niu
3046 Wailupe
3047 Waialaenui
3048 Diamond Head
3049 Ala Wai
3050 Nu‘uanu
3051 Kapalama
3052 Kalihi
3053 Moanalua
3054 Ke‘ehi
3055 Manuwai
3056 Salt Lake

Click to View ‘Ewa Region Units

SWHU Code
Instream Flow Standard Development Resources
3057 Halawa
3058 Aiea
3059 Kalauao
3060 Waimalu
3061 Waiawa
3062 Waipio
3063 Kapakahi
3064 Waikele
3065 Honouliuli
3066 Kaloi
3067 Makaiwa

Click to View Wai‘anae Region Units

SWHU Code
Instream Flow Standard Development Resources
3068 Nanakuli
3069 Ulehawa
3070 Mailiili
3071 Kaupuni
3072 Kamaileunu
3073 Makaha
3074 Keaau
3075 Makua
3076 Kaluakauila

Click to View Waialua Region Units

SWHU Code
Instream Flow Standard Development Resources
3077 Manini
3078 Kawaiahapai
3079 Pahole
3080 Makaleha
3081 Waialua
3082 Ki‘iki‘i
3083 Paukauila
3084 Anahulu
3085 Loko Ea
3086 Keamanea
3087 Waimea