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Important for you to know:

  • New to WDFN: see current water conditions throughout the state using the new State Pages. Visit the Louisiana page for an example. Filter by continuous data type and age of data, view latest values, and link to graphing options to explore the data further. You can update the state name in the URL to visit your State Page or read our announcement on the Water Data for the Nation blog to find links to all the state and territory pages.
Important Legacy real-time page

USGS Parameter Group Data Types Start Date End Date
Physical Daily Values, Unit Values 2022-12-14 2024-12-03
n/a USGS Annual Water Data Reports Site 2023-01-01 2023-01-01
Water Data for the Nation inventory

Monitoring location 16206600 is associated with a Lake, Reservoir, Impoundment in Honolulu County, Hawaii. Current conditions of Gage height are available. Water data back to 2022 are available online.

Metadata Element Location Metadata Metadata Code
Agency
U.S. Geological Survey USGS
Site identification number
16206600 n/a
Site name
Koolau Reservoir near Wahiawa, Oahu, HI n/a
Site type
Lake, Reservoir, Impoundment
LK
DMS latitude 212931.4 n/a
DMS longitude 1575812.7 n/a
Decimal latitude 21.49205556 n/a
Decimal longitude -157.9701944 n/a
Latitude-longitude method
Mapping grade GPS unit (handheld accuracy range 12 to 40 ft) G
Latitude-longitude accuracy
Accurate to + or - 1 sec. S
Latitude-longitude datum
North American Datum of 1983 NAD83
Decimal Latitude-longitude datum North American Datum of 1983 NAD83
District
Hawaii 15
State
Hawaii 15
County
Honolulu County 003
Country US n/a
Land net location description n/a
Name of location map WAIPAHU, HI n/a
Scale of location map 24000 n/a
Altitude of Gage/land surface 1032 feet n/a
Method altitude determined Interpolated from Digital Elevation Model N
Altitude accuracy 20 feet n/a
Altitude datum
Local Mean Sea Level LMSL
Subbasin hydrologic unit
20060000
Drainage basin
n/a
Topographic setting
n/a
Flags for instruments at site NNNNYNNNNNNNNNNNNNNNNNNNNNNNNN n/a
Date of first construction
n/a
Date site established or inventoried n/a
Drainage area
n/a
Contributing drainage area n/a
Time Zone abbreviation HST n/a
Site honors Daylight Saving Time
N n/a
Data reliability
n/a
Data-other GW files n/a
National aquifer n/a
Local aquifer n/a
Local aquifer type
n/a
Well depth n/a
Hole depth
n/a
Source of depth data n/a
Project number n/a