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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.

This gage was discontinued on Oct. 1, 2021 due to lack of funding. For questions or to support continued gage operations through funding, please use the "Questions or Comments" link at the bottom of the page.

Important Legacy real-time page

USGS Parameter Group Data Types Start Date End Date
Biological Water-quality 1995-09-25 1995-09-25
Information Water-quality 1995-09-25 1995-09-25
Inorganics, Major, Metals Water-quality 1995-09-25 1995-09-25
Inorganics, Major, Non-metals Water-quality 1995-09-25 1995-09-25
Inorganics, Minor, Non-metals Water-quality 1995-09-25 1995-09-25
Inorganics, Minor, metals Water-quality 1995-09-25 1995-09-25
Nutrient Water-quality 1995-09-25 1995-09-25
Organics, PCBs Water-quality 1995-09-25 1995-09-25
Organics, other Water-quality 1995-09-25 1995-09-25
Organics, pesticide Water-quality 1995-09-25 1995-09-25
Physical Daily Values, Unit Values, Water-quality 1945-07-01 2021-10-01
Radiochemistry Water-quality 1995-09-25 1995-09-25
Sediment Water-quality 1995-09-25 1995-09-25
n/a Peak Measurements 1946-01-07 2021-01-14
n/a Site Visits 1945-06-30 2021-10-18
n/a USGS Annual Water Data Reports Site 2006-01-01 2021-01-01
Water Data for the Nation inventory

Monitoring location 12118500 is associated with a Stream in King County, Washington. Water data back to 1945 are available online.

This gage was discontinued on Oct. 1, 2021 due to lack of funding. For questions or to support continued gage operations through funding, please use the "Questions or Comments" link at the bottom of the page.
Metadata Element Location Metadata Metadata Code
Agency
U.S. Geological Survey USGS
Site identification number
12118500 n/a
Site name
ROCK CREEK NEAR MAPLE VALLEY, WA n/a
Site type
Stream
ST
DMS latitude 472248 n/a
DMS longitude 1220058 n/a
Decimal latitude 47.3797969 n/a
Decimal longitude -122.0173172 n/a
Latitude-longitude method
Interpolated from MAP. M
Latitude-longitude accuracy
Accurate to + or - 1 sec. S
Latitude-longitude datum
North American Datum of 1927 NAD27
Decimal Latitude-longitude datum North American Datum of 1983 NAD83
District
Washington 53
State
Washington 53
County
King County 033
Country US n/a
Land net location description SENES22 T22N R06E W n/a
Name of location map n/a
Scale of location map n/a
Altitude of Gage/land surface 400.00 feet n/a
Method altitude determined Level or other surveyed method. L
Altitude accuracy 01 feet n/a
Altitude datum
North American Vertical Datum of 1988 NAVD88
Subbasin hydrologic unit
17110012
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
12.6 square miles n/a
Contributing drainage area n/a
Time Zone abbreviation PST n/a
Site honors Daylight Saving Time
Y n/a
Data reliability
n/a
Data-other GW files NNNNNNNN 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