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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.

Current streamflow conditions in Hawaii

Current streamflow conditions in Pacific Islands; click to go to a live map.
Map legend showing percentile class groups.

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Recent Hydrologic Conditions

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Flow statistics for USGS stream-gages, Hawaii

Pearl Harbor Area, Oahu

Water Resources of Guam

Streamflow Measurements to Identify Gaining and Losing Stream Reaches

Oahu and Kauai Flood, December 2008

Ka Loko Reservoir Flood, Kauai

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Featured Publications

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OFR 2010-1161 Open File Report 2010-1161
Rainfall, Discharge, and Water-Quality Data During Stormwater Monitoring, H-1 Storm Drain, Oahu, Hawaii, July 1, 2009, to June 30, 2010
SIR 2010-5035 Scientific Investigations Report 2010-5035
Flood-Frequency Estimates for Streams on Kaua'i, O'ahu, Moloka'i, Maui, and Hawai'i, State of Hawai'i.
SIR 2010-5011 Scientific Investigations Report 2010-5011
Effects of Surface-Water Diversion on Streamflow, Recharge, Physical Habitat, and Temperature, Nā Wai 'Ehā, Maui, Hawai'i
SIR 2009-5253 Scientific Investigations Report 2009-5253
A Multitracer Approach to Detecting Wastewater Plumes from Municipal Injection Wells in Nearshore Marine Waters at Kihei and Lahaina, Maui, Hawaii
SIR 2009-5249 Scientific Investigations Report 2009-5249
Reconnaissance Assessment of the Potential for Roadside Dry Wells to Affect Water Quality on the Island of Hawai'i
SIR 2009-5229-1 Scientific Investigations Report 2009-5229
Ecological Assessment of Wadeable Streams on O'ahu, Hawai'i, 2006-2007; A Pilot Study
Circular 1312 Circular 1312
Ground Water on Tropical Pacific Islands—Understanding a Vital Resource
SIR 2008-5236 Scientific Investigations Report 2008-5236
Ground-Water Availability in the Wailuku Area, Maui, Hawai'i
SIR 2006-5283 Scientific Investigations Report 2006-5283
Ground-Water Nutrient Flux to Coastal Waters and Numerical Simulation of Wastewater Injection at Kihei, Maui, Hawaii

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Page Last Modified: Wednesday, 11-Aug-2010 14:07:51 EDT

16704000: Flow=8.4cfs,Stage=1.45ft,2010-09-08 19:45,<10,Wailuku River at Piihonua, HI 16587000: Flow=0.44cfs,Stage=0.49ft,2010-09-08 19:30,<10,Honopou Stream near Huelo, Maui, HI 16508000: Flow=1.9cfs,Stage=0.16ft,2010-09-08 19:30,<10,Hanawi Stream near Nahiku, Maui, HI 16296500: Flow=13cfs,Stage=1.13ft,2010-09-08 19:45,<10,Kahana Str at alt 30 ft nr Kahana, Oahu, HI 16725000: Flow=0.80cfs,Stage=1.76ft,2010-09-08 19:00,10-24,Alakahi Stream near Kamuela, HI 16717000: Flow=11cfs,Stage=2.33ft,2010-09-08 19:45,10-24,Honolii Stream nr Papaikou, HI 16620000: Flow=13cfs,Stage=1.44ft,2010-09-08 18:45,10-24,Honokohau Stream near Honokohau, Maui, HI 16618000: Flow=4.5cfs,Stage=2.03ft,2010-09-08 19:30,10-24,Kahakuloa Stream near Honokohau, Maui, HI 16518000: Flow=4.2cfs,Stage=0.84ft,2010-09-08 19:15,10-24,West Wailuaiki Stream near Keanae, Maui, HI 16240500: Flow=2.0cfs,Stage=0.28ft,2010-09-08 19:15,10-24,Waiakeakua Str at Honolulu, Oahu, HI 16229000: Flow=0.75cfs,Stage=2.10ft,2010-09-08 19:15,10-24,Kalihi Str nr Honolulu, Oahu, HI 16213000: Flow=12cfs,Stage=1.85ft,2010-09-08 19:30,10-24,Waikele Str at Waipahu, Oahu, HI 16097500: Flow=4.8cfs,Stage=0.87ft,2010-09-08 19:30,10-24,Halaulani Str at alt 400 ft nr Kilauea, Kauai, HI 16071500: Flow=0.54cfs,Stage=0.76ft,2010-09-08 19:45,10-24,Left Branch Opaekaa Str nr Kapaa, Kauai, HI 16758000: Flow=4.5cfs,Stage=1.68ft,2010-09-08 19:45,25-75,Waikoloa Str at Marine Dam nr Kamuela, HI 16720000: Flow=2.7cfs,Stage=1.34ft,2010-09-08 19:45,25-75,Kawainui Stream nr Kamuela, HI 16400000: Flow=7.1cfs,Stage=1.85ft,2010-09-08 19:15,25-75,Halawa Stream near Halawa, Molokai, HI 16345000: Flow=4.4cfs,Stage=1.75ft,2010-09-08 20:00,25-75,Opaeula Str nr Wahiawa, Oahu, HI 16330000: Flow=1.5cfs,Stage=1.86ft,2010-09-08 19:30,25-75,Kamananui Str at Maunawai, Oahu, HI 16304200: Flow=1.3cfs,Stage=4.88ft,2010-09-08 19:15,25-75,Kaluanui Stream nr Punaluu, Oahu, HI 16294900: Flow=4.0cfs,2010-09-08 20:00,Stage=1.51ft,2010-09-08 19:45:00,25-75,Waikane Str at alt 75 ft at Waikane, Oahu, HI 16254000: Flow=1.6cfs,Stage=5.47ft,2010-09-08 19:30,25-75,Makawao Str nr Kailua, Oahu, HI 16212800: Flow=2.5cfs,Stage=2.05ft,2010-09-08 19:45,25-75,Kipapa Str nr Wahiawa, Oahu, HI 16208000: Flow=11cfs,Stage=1.66ft,2010-09-08 19:30,25-75,SF Kaukonahua Str at E pump, nr Wahiawa, Oahu, HI 16200000: Flow=4.3cfs,Stage=1.84ft,2010-09-08 19:15,25-75,NF Kaukonahua Str abv RB, nr Wahiawa, Oahu, HI 16108000: Flow=62cfs,Stage=1.48ft,2010-09-08 19:30,25-75,Wainiha River nr Hanalei, Kauai, HI 16103000: Flow=88cfs,Stage=1.80ft,2010-09-08 19:00,25-75,Hanalei River nr Hanalei, Kauai, HI 16068000: Flow=20cfs,Stage=1.25ft,2010-09-08 19:15,25-75,EB of NF Wailua River nr Lihue, Kauai, HI 16060000: Flow=92cfs,Stage=2.87ft,2010-09-08 19:45,25-75,SF Wailua River nr Lihue, Kauai, HI 16019000: Flow=5.5cfs,Stage=0.95ft,2010-09-08 19:45,25-75,Waialae Str at alt 3,820 ft nr Waimea, Kauai, HI 16010000: Flow=8.6cfs,Stage=2.21ft,2010-09-08 19:15,25-75,Kawaikoi Stream nr Waimea, Kauai, HI 213407158033201: Stage=17.57ft,2010-09-08 19:45:00,Not ranked,Helemano 11 Reservoir, Oahu, HI 213308158035601: Stage=23.43ft,2010-09-08 19:45:00,Not ranked,Helemano 6 Reservoir, Oahu, HI 213259158035101: Stage=3.09ft,2010-09-08 19:45:00,Not ranked,Helemano 16 Reservoir, Oahu, HI 212604158012700: Flow=0.03cfs,Stage=3.47ft,2010-09-08 19:45,Not ranked,Mililani Storm Drain A at Mililani, Oahu, HI 212134157543901: Stage=-7.30ft,2010-09-08 19:30:00,Not ranked,AMR A-A2 nr Aiea, Oahu, HI 211722157485601: Flow=0.01cfs,Stage=1.17ft,2010-09-08 19:15,Not ranked,H-1 storm drain at Kapiolani Ave, Oahu, HI 16770500: Flow=0.00cfs,Stage=0.80ft,2010-09-08 19:30,Not ranked,Paauau Gulch at Pahala, HI 16756100: Flow=2.8cfs,Stage=1.83ft,2010-09-08 19:45,Not ranked,Kohakohau Stream above DWS Intake, nr Kamuela, HI 16700600: Stage=1.43ft,2010-09-08 19:45:00,Not ranked,Waiakea Stream at Hoaka Road, HI 16614000: Flow=33cfs,Stage=1.55ft,2010-09-08 19:00,Not ranked,Waihee Rv abv Waihee Dtch intk nr Waihee, Maui, HI 16604500: Flow=50cfs,Stage=1.20ft,2010-09-08 18:45,Not ranked,Iao Stream at Kepaniwai Park nr Wailuku, Maui, HI 16595200: Flow=0.20cfs,Stage=1.26ft,2010-09-08 19:30,Not ranked,Honopou Stream blw. div. ditch nr Huelo, Maui, HI 16595100: Flow=0.58cfs,Stage=1.06ft,2010-09-08 19:30,Not ranked,Div. Ditch at intake, Honopou Str nr Huelo,Maui,HI 16552800: Flow=0.05cfs,Stage=0.60ft,2010-09-08 19:15,Not ranked,Waikamoi Str abv Kula Pl intake nr Olinda, Maui,HI 16521300: Flow=1.6cfs,Stage=2.07ft,2010-09-08 19:45,Not ranked,Waiokamilo Stream at Dam 3 near Keanae, Maui, HI 16501200: Flow=0.49cfs,Stage=0.75ft,2010-09-08 19:30,Not ranked,Oheo Gulch at dam near Kipahulu, Maui, HI 16415600: Flow=0.00cfs,Stage=7.57ft,2010-09-08 19:30,Not ranked,Kawela Gulch near Moku, Molokai, HI 16414200: Flow=0.00cfs,Stage=2.85ft,2010-09-08 19:45,Not ranked,Kaunakakai Gulch at altitude 75 feet, Molokai, HI 16350100: Stage=-0.72ft,2010-09-08 19:45:00,Not ranked,Opaeula Str at Joseph Leong Hwy, Haleiwa, Oahu, HI 16343100: Stage=-0.77ft,2010-09-08 20:00:00,Not ranked,Helemano Str at Joseph Leong Hwy, Haleiwa, Oahu,HI 16301050: Flow=12cfs,Stage=3.80ft,2010-09-08 19:00,Not ranked,Punaluu Str abv Punaluu Ditch Intake, Oahu, HI 16294100: Flow=14cfs,Stage=6.58ft,2010-09-08 19:15,Not ranked,Waiahole Stream above Kamehameha Hwy, Oahu, HI 16284200: Flow=4.6cfs,Stage=2.72ft,2010-09-08 05:30,Not ranked,Waihee Str nr Kahaluu, Oahu, HI 16264600: Stage=3.31ft,2010-09-08 19:30:00,Not ranked,Kawainui Marsh nr levee sta 15+00, Oahu, HI 16247900: Flow=0.008cfs,Stage=23.40ft,2010-09-08 19:45,Not ranked,Kuliouou Valley at Kuliouou, Oahu, HI 16247550: Flow=0.00cfs,Stage=9.75ft,2010-09-08 20:00,Not ranked,Wailupe Gulch at E. Hind Dr. Bridge, Oahu, HI 16247150: 0000-00-00 00:00,Stage=17.52ft,2010-09-08 19:00:00,Not ranked,Makiki Stream at Aarohie Baker Park, Oahu, HI 16247100: Stage=1.07ft,2010-09-08 20:00:00,Not ranked,Manoa-Palolo Drainage Canal at Moiliili, Oahu, HI 16244000: Stage=0.88ft,2010-09-08 19:30:00,Not ranked,Pukele Stream near Honolulu, Oahu, HI 16242500: Flow=5.5cfs,Stage=8.95ft,2010-09-08 20:00,Not ranked,Manoa Str at Kanewai Field, Honolulu, Oahu, HI 16238000: Stage=3.01ft,2010-09-08 20:00:00,Not ranked,Makiki Stream at King St. bridge, Oahu, HI 16226400: Flow=0.00cfs,Stage=2.82ft,2010-09-08 19:15,Not ranked,N. Halawa Str nr Quar. Stn. at Halawa, Oahu, HI 16226200: Flow=0.00cfs,2010-09-08 20:00,Stage=5.75ft,2010-09-08 19:30:00,Not ranked,N. Halawa Str nr Honolulu, Oahu, HI 16212601: Stage=4.87ft,2010-09-08 19:45:00,Not ranked,Waikele Str at Wheeler Field, Oahu, HI 16211600: Flow=0.00cfs,Stage=0.51ft,2010-09-08 19:30,Not ranked,Makaha Str nr Makaha, Oahu, HI 16210000: Stage=68.78ft,2010-09-08 19:15:00,Not ranked,Wahiawa Reservoir at Spillway at Wahiawa, Oahu, HI 16208400: Stage=12.74ft,2010-09-08 19:45:00,Not ranked,Ku Tree Reservoir near Wahiawa, Oahu, HI 16094150: Stage=20.23ft,2010-09-08 19:45:00,Not ranked,Ka Loko Reservoir near Kilauea, Kauai, HI 16051500: Stage=70.05ft,2010-09-08 19:15:00,Not ranked,Alexander Reservoir near Kalaheo, Kauai, HI Go to WaterWatch (offsite) for a larger map with additional options