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Hanawi Stream near Nahiku, Maui, Hawaii.

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Water Resources of the Pacific Islands

Aloha! Welcome to the USGS Web page for the water resources of Hawaii and the Pacific area. This is your direct link to water-resource information and products for the State of Hawaii, the U.S. Territories of Guam and American Samoa, the U.S. Commonwealth of the Northern Mariana Islands, the Republic of Palau, the Republic of the Marshall Islands, and the Federated States of Micronesia.


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sir 2015-5010 Scientific Investigations Report 2015-5010new
Spatially Distributed Groundwater Recharge for 2010 Land Cover Estimated Using a Water-Budget Model for the Island of O‘ahu, Hawai‘i.

sir 2014-5158 Scientific Investigations Report 2014-5158
Baseline Water-Quality Sampling to Infer Nutrient and Contaminant Sources at Kaloko-Honokōhau National Historical Park, Island of Hawai‘i, 2009.

sir 2014-5168 Scientific Investigations Report 2014-5168
Spatially Distributed Groundwater Recharge Estimated Using a Water-Budget Model for the Island of Maui, Hawai‘i, 1978–2007.

ofr 2014-1173 Open-File Report 2014-1173
Water-Chemistry Data Collected in and near Kaloko-Honokōhau National Historical Park, Hawai‘i, 2012–2014.

sir 2014-5087 Scientific Investigations Report 2014-5087
Low-Flow Characteristics of Streams in the Lahaina District, West Maui, Hawai‘i.

sir 2013-5216 Scientific Investigations Report 2013-5216
The Effects of Withdrawals and Drought on Groundwater Availability in the Northern Guam Lens Aquifer, Guam.

Circular 1312 Circular 1312
Ground Water on Tropical Pacific Islands—Understanding a Vital Resource.

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16620000: Flow=151cfs,Stage=2.53ft,2015-02-28 17:35,High,Honokohau Stream near Honokohau, Maui, HI 16618000: Flow=310cfs,Stage=2.34ft,2015-02-28 17:30,High,Kahakuloa Stream near Honokohau, Maui, HI 16238500: Flow=0.13cfs,Stage=1.53ft,2015-02-28 17:15,Low,Waihi Stream at Honolulu, Oahu, HI 16614000: Flow=282cfs,Stage=2.65ft,2015-02-28 17:00,>90,Waihee Rv abv Waihee Dtch intk nr Waihee, Maui, HI 16301050: Flow=45cfs,Stage=4.20ft,2015-02-28 17:00,>90,Punaluu Str abv Punaluu Ditch Intake, Oahu, HI 16097500: Flow=26cfs,Stage=1.61ft,2015-02-28 17:30,>90,Halaulani Str at alt 400 ft nr Kilauea, Kauai, HI 16244000: Flow=0.34cfs,Stage=0.88ft,2015-02-28 16:30,<10,Pukele Stream near Honolulu, Oahu, HI 16226200: Flow=0.00cfs,Stage=5.32ft,2015-02-28 17:15,<10,N. Halawa Str nr Honolulu, Oahu, HI 16208000: Flow=0.36cfs,Stage=1.13ft,2015-02-28 17:00,<10,SF Kaukonahua Str at E pump, nr Wahiawa, Oahu, HI 16019000: Flow=2.8cfs,Stage=0.85ft,2015-02-28 16:45,<10,Waialae Str at alt 3,820 ft nr Waimea, Kauai, HI 16010000: Flow=7.0cfs,Stage=2.14ft,2015-02-28 17:15,<10,Kawaikoi Stream nr Waimea, Kauai, HI 16071500: Flow=0.56cfs,Stage=0.77ft,2015-02-28 16:45,<10,Left Branch Opaekaa Str nr Kapaa, Kauai, HI 16068000: Flow=13cfs,Stage=0.90ft,2015-02-28 17:15,<10,EB of NF Wailua River nr Lihue, Kauai, HI 16604500: Flow=145cfs,Stage=2.02ft,2015-02-28 17:35,76-90,Iao Stream at Kepaniwai Park nr Wailuku, Maui, HI 16587000: Flow=11cfs,Stage=1.03ft,2015-02-28 16:30,76-90,Honopou Stream near Huelo, Maui, HI 16400000: Flow=67cfs,Stage=3.12ft,2015-02-28 17:15,76-90,Halawa Stream near Halawa, Molokai, HI 16330000: Flow=47cfs,Stage=2.83ft,2015-02-28 17:30,76-90,Kamananui Str at Maunawai, Oahu, HI 16211600: Flow=8.1cfs,Stage=1.45ft,2015-02-28 17:30,76-90,Makaha Str nr Makaha, Oahu, HI 16725000: Flow=0.49cfs,Stage=1.54ft,2015-02-28 17:00,10-24,Alakahi Stream near Kamuela, HI 16704000: Flow=13cfs,Stage=1.62ft,2015-02-28 16:45,10-24,Wailuku River at Piihonua, HI 16345000: Flow=1.5cfs,Stage=1.51ft,2015-02-28 16:45,10-24,Opaeula Str nr Wahiawa, Oahu, HI 16240500: Flow=2.0cfs,Stage=0.29ft,2015-02-28 17:15,10-24,Waiakeakua Str at Honolulu, Oahu, HI 16229000: Flow=1.4cfs,Stage=2.17ft,2015-02-28 17:15,10-24,Kalihi Str nr Honolulu, Oahu, HI 16213000: Flow=17cfs,Stage=1.98ft,2015-02-28 16:30,10-24,Waikele Str at Waipahu, Oahu, HI 16200000: Flow=0.78cfs,Stage=1.46ft,2015-02-28 17:15,10-24,NF Kaukonahua Str abv RB, nr Wahiawa, Oahu, HI 16108000: Flow=53cfs,Stage=1.41ft,2015-02-28 17:30,10-24,Wainiha River nr Hanalei, Kauai, HI 16060000: Flow=5.3cfs,Stage=1.64ft,2015-02-28 16:45,10-24,SF Wailua River nr Lihue, Kauai, HI 16720000: Flow=1.3cfs,Stage=1.26ft,2015-02-28 16:45,25-75,Kawainui Stream nr Kamuela, HI 16717000: Flow=26cfs,Stage=2.70ft,2015-02-28 16:45,25-75,Honolii Stream nr Papaikou, HI 16518000: Flow=34cfs,Stage=2.36ft,2015-02-28 17:15,25-75,West Wailuaiki Stream near Keanae, Maui, HI 16508000: Flow=5.4cfs,Stage=0.47ft,2015-02-28 17:30,25-75,Hanawi Stream near Nahiku, Maui, HI 16304200: Flow=2.0cfs,Stage=4.00ft,2015-02-28 17:15,25-75,Kaluanui Stream nr Punaluu, Oahu, HI 16296500: Flow=24cfs,Stage=1.31ft,2015-02-28 16:45,25-75,Kahana Str at alt 30 ft nr Kahana, Oahu, HI 16284200: Flow=5.9cfs,Stage=2.75ft,2015-02-28 16:30,25-75,Waihee Str nr Kahaluu, Oahu, HI 16275000: Flow=1.7cfs,Stage=1.63ft,2015-02-28 17:15,25-75,Heeia Stream at Haiku Valley nr Kaneohe, Oahu, HI 16254000: Flow=3.2cfs,Stage=5.75ft,2015-02-28 17:30,25-75,Makawao Str nr Kailua, Oahu, HI 220541159215901: Stage=332.13ft,2015-02-28 16:30,Not ranked,Upper Kapahi Reservoir near Kapaa, Kauai, HI 213308158035601: Stage=22.30ft,2015-02-28 16:45,Not ranked,Helemano 6 Reservoir, Oahu, HI 213259158035101: Stage=3.10ft,2015-02-28 16:45,Not ranked,Helemano 16 Reservoir, Oahu, HI 213133158014201: Stage=30.55ft,2015-02-28 16:45,Not ranked,Upper Helemano Reservoir near Wahiawa, Oahu, HI 16770500: Flow=0.00cfs,Stage=0.80ft,2015-02-28 17:30,Not ranked,Paauau Gulch at Pahala, HI 16599500: Flow=2.0cfs,2007-10-11 23:45,Not ranked,Opana Tunnel near Kailiili, Maui, HI 16552800: Flow=0.07cfs,Stage=0.63ft,2015-02-28 17:15,Not ranked,Waikamoi Str abv Kula Pl intake nr Olinda, Maui,HI 16501200: Flow=0.07cfs,Stage=0.65ft,2015-02-28 17:30,Not ranked,Oheo Gulch at dam near Kipahulu, Maui, HI 16414200: 2015-02-26 05:45:00,Not ranked,Rating being developed or revised,Kaunakakai Gulch at altitude 75 feet, Molokai, HI 16350100: Stage=0.76ft,2015-02-15 06:45,Not ranked,Opaeula Str at Joseph Leong Hwy, Haleiwa, Oahu, HI 16343100: Stage=-0.41ft,2015-02-28 16:45,Not ranked,Helemano Str at Joseph Leong Hwy, Haleiwa, Oahu,HI 16325000: Stage=1.51ft,2015-02-28 17:00,Not ranked,Kamananui Str at Pupukea Mil Rd, Oahu, HI 16303000: Flow=4.9cfs,2009-01-31 23:45,Not ranked,Punaluu Str nr Punaluu, Oahu, HI 16302000: Flow=3.2cfs,2008-12-30 23:45,Not ranked,Punaluu Ditch nr Punaluu, Oahu, HI 16295300: Flow=0.26cfs,2008-10-14 00:00,Not ranked,Hakipuu Stream near Waikane, Oahu, HI 16294900: Flow=4.4cfs,Stage=3.09ft,2015-02-28 16:30,Not ranked,Waikane Str at alt 75 ft at Waikane, Oahu, HI 16294100: Flow=29cfs,Stage=7.14ft,2015-02-28 16:30,Not ranked,Waiahole Stream above Kamehameha Hwy, Oahu, HI 16283200: Flow=1.6cfs,2015-01-22 13:30,Not ranked,Kahaluu Str nr Ahuimanu, Oahu, HI 16264600: Stage=4.67ft,2015-02-28 16:30,Not ranked,Kawainui Marsh nr levee sta 15+00, Oahu, HI 16247900: Not ranked,Rating being developed or revised,Kuliouou Valley at Kuliouou, Oahu, HI 16247100: Flow=3.3cfs,Stage=0.96ft,2015-02-28 17:00,Not ranked,Manoa-Palolo Drainage Canal at Moiliili, Oahu, HI 16246000: Flow=0.36cfs,2014-10-17 14:15,Not ranked,Waiomao Stream near Honolulu, Oahu, HI 16241600: Flow=2.0cfs,Stage=3.63ft,2015-02-28 17:15,Not ranked,Manoa Stream at Woodlawn Drive, Oahu, HI 16238000: Flow=0.35cfs,Stage=2.98ft,2015-02-28 16:45,Not ranked,Makiki Stream at King St. bridge, Oahu, HI 16227500: Flow=0.00cfs,Stage=1.87ft,2015-02-28 17:00,Not ranked,Moanalua Stream nr Kaneohe, Oahu, HI 16226400: Flow=0.00cfs,Stage=2.76ft,2015-02-28 17:15,Not ranked,N. Halawa Str nr Quar. Stn. at Halawa, Oahu, HI 16212490: Stage=5.08ft,2015-02-28 17:15,Not ranked,Honouliuli Str at H-1 Freeway nr Waipahu, Oahu, HI 16212480: Flow=0.00cfs,Stage=2.58ft,2015-02-28 16:30,Not ranked,Honouliuli Stream Tributary near Waipahu, Oahu, HI 16210500: Stage=15.56ft,2015-02-28 16:45,Not ranked,Kaukonahua Str at Waialua, Oahu, HI 16210200: Flow=0.12cfs,Stage=4.42ft,2015-02-28 16:45,Not ranked,Kaukonahua Stream blw Wahiawa Reservoir, Oahu, HI 16210100: Flow=7.7cfs,Stage=7.35ft,2015-02-28 16:45,Not ranked,Wahiawa Ditch at Wahiawa, Oahu, HI 16210000: Stage=68.86ft,2015-02-28 17:15,Not ranked,Wahiawa Reservoir at Spillway at Wahiawa, Oahu, HI 16208400: Stage=12.72ft,2015-02-28 16:45,Not ranked,Ku Tree Reservoir near Wahiawa, Oahu, HI 16103000: Flow=83cfs,Stage=1.94ft,2015-02-28 17:00,Not ranked,Hanalei River nr Hanalei, Kauai, HI 16094150: Stage=18.19ft,2015-02-28 16:45,Not ranked,Ka Loko Reservoir near Kilauea, Kauai, HI Go to WaterWatch (offsite) for a larger map with additional options