Island of Hawai‘i

The Commission’s efforts to develop instream flow standards on the Island of Hawai‘i are captured here. Hawai‘i is divided into five regions: Hamakua, Hilo, Ka‘u, Kona, and Kohala. 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 (if available) 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 determined by way of a contested case hearing.

NOTE: This page is still under development and individual hydrologic unit data is still being compiled.


Hāmākua Region Surface Water Hydrologic Units

[spoiler title=”CLICK TO VIEW HĀMĀKUA REGION UNITS” open=”no” style=”default” icon=”chevron” anchor_in_url=”no”]
SWHU Code
Instream Flow Standard Development Resources
8001 Kealahawa
8002 Huala
8003 Kumakua
8004 Kapua
8005 Ohanaula
8006 Hanaula
8007 Hapahapai
8008 Pali Akamoa
8009 Wainaia
8010 Halelua
8011 Hālawa
8012 ‘A‘amakāō
8013 Niuliʻi
8014 Waikama
8015 Pololū
8016 Honokāne Nui
8017 Honokāne Iki
8018 Ka‘ie‘ie
8019 Waipahi
8020 Honokea
8021 Kailikaula
8022 Honopue
8023 Kolealiilii
8024 Ohiahuea
8025 Nakooko
8026 Waiapuka
8027 Waikaloa
8028 Waimaile
8029 Kukui
8030 Paopao
8031 Waiaalala
8032 Punalulu
8033 Kaimū
8034 Pae
8035 Waimanu
8036 Pukoa
8037 Manuwaikaalio
8038 Nalue
8039 Kaho‘opu‘u
8040 Waipāhoehoe
8041 Wailoa
8042 Kaluahine Falls
8043 Waiulili
8044 Waikoekoe
8045 Waipunahoe
8046 Wai‘ale‘ale
8047 Waikoloa
8048 Kapulena
8049 Kawaikalia
8050 Malanahae
8051 Honokaia
8052 Kawela
8053 Keaakaukau
8054 Kainapahoa
8055 Ni‘eni‘e
8056 Papuaa
8057 Ouhi
8058 Kahaupu
8059 Kahawailiʻiliʻi
8060 Keahua
8061 Kalōpā
8062 Waika‘alulu
8063 Kukuilamalamahe‘e
8064 Aliipali
8065 Kaumō‘ali
8066 Pohakuhaku
8067 Waipunahina
8068 Waipunalau
8069 Paʻauilo
8070 Aamanu
8071 Koholalele
8072 Kalapāhāpu‘u
8073 Kūka‘iau
8074 Pu‘umaile
8075 Kekualele
8076 Ka‘ala
8077 Kealakaha
8078 Keehia
8079 Kupapaulua
8080 Kaiwiki
8081 Ka‘ula
[/spoiler]

Hilo Region Surface Water Hydrologic Units

[spoiler title=”CLICK TO VIEW HILO REGION UNITS” open=”no” style=”default” icon=”chevron” anchor_in_url=”no”]
SWHU Code
Instream Flow Standard Development Resources
8082 Kaohaoha
8083 Kaawalii
8084 Waipunalei
8085 Laupāhoehoe
8086 Kīlau
8087 Manowai‘ōpae
8088 Kuwaikahi
8089 Kihalani
8090 Kaiwilahilahi
8091 Ha‘akoa
8092 Pāhale
8093 Kapehu Camp
8094 Paeohe
8095 Maulua
8096 Pōhakupuka
8097 Kulanakiʻi
8098 Āhole
8099 Poupou
8100 Manoloa
8101 Nīnole
8102 Kaʻaheiki
8103 Waikolu
8104 Waikaumalo
8105 Waiehu
8106 Nānue
8107 ʻŌpeʻa
8108 Peleau
8109 Umauma
8110 Hakalau
8111 Kolekole
8112 Pāheʻeheʻe
8113 Honomū
8114 Laʻimi
8115 Kapehu
8116 Mākea
8117 Ālia
8118 Makahanaloa
8119 Waimaauou
8120 Waiʻaʻama
8121 Kawainui
8122 Onomea
8123 Alakahi
8124 Hanawī
8125 Kalaoa
8126 Aleamai
8127 Kaʻieʻie
8128 Puuokalepa
8129 Kaapoko
8130 Pāpaʻikou
8131 Kapue
8132 Pāhoehoe
8133 Paukaʻa
8134 Honoliʻi
8135 Māʻili
8136 Wainaku
8137 Pūkīhae
8138 Wailuku
8139 Wailoa
8140 Kaʻahakini
[/spoiler]

Ka‘ū Region Surface Water Hydrologic Units

[spoiler title=”CLICK TO VIEW KA‘Ū REGION UNITS” open=”no” style=”default” icon=”chevron” anchor_in_url=”no”]
SWHU Code
Instream Flow Standard Development Resources
8141 Kīlauea
8142 Keauhou Point
8143 Kīlauea Crater
8144 Kapāpala
8145 Pāhala
8146 Hīlea
8147 Na‘alehu
8148 Kiolaka‘a
8149 South Point
[/spoiler]

Kona Region Surface Water Hydrologic Units

[spoiler title=”CLICK TO VIEW KONA REGION UNITS” open=”no” style=”default” icon=”chevron” anchor_in_url=”no”]
SWHU Code
Instream Flow Standard Development Resources
8150 Kaunā
8151 Kiʻilae
8152 Kealakekua
8153 Waiʻaha
8154 Honokōhau
8155 Keāhole
8156 Kīholo
[/spoiler]

Kohala Region Surface Water Hydrologic Units

[spoiler title=”CLICK TO VIEW KOHALA REGION UNITS” open=”no” style=”default” icon=”chevron” anchor_in_url=”no”]
SWHU Code
Instream Flow Standard Development Resources
8157 Pōhakuloa
8158 Kamakoa
8159 Hāloa
8160 Lanimaumau
8161 Waikoloa
8162 Kawaihae
8163 Honokoa
8164 Keawanui
8165 Lapakahi
8166 Māhukona
[/spoiler]