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Important for you to know:

  • New to WDFN: see current water conditions throughout the state using the new State Pages. Filter by continuous data type and age of data, view latest values, and link to graphing options to explore the data further. To learn more, read our announcement on the Water Data for the Nation blog.
Important Legacy real-time page

USGS Parameter Group Data Types Start Date End Date
Information Water-quality 1968-01-23 2022-07-01
Inorganics, Major, Metals Water-quality 1959-07-15 1970-09-09
Inorganics, Major, Non-metals Water-quality 1959-07-15 1980-06-10
Inorganics, Minor, Non-metals Water-quality 1959-11-19 1968-12-04
Inorganics, Minor, metals Water-quality 1959-08-20 1969-12-10
Microbiological Water-quality 1959-10-21 1970-09-09
Nutrient Water-quality 1959-07-15 1980-06-10
Physical Daily Values, Unit Values, Water-quality 1943-09-01 2024-11-19
Sediment Water-quality 2022-03-01 2022-07-01
n/a Peak Measurements 1943-12-03 2022-12-26
n/a Site Visits 1983-08-09 2024-10-02
n/a USGS Annual Water Data Reports Site 2006-01-01 2024-01-01
Water Data for the Nation inventory

Monitoring location 12181000 is associated with a Stream in Skagit County, Washington. Current conditions of Discharge, Gage height, and Temperature are available. Water data back to 1943 are available online.

The datum of the gage has been determined to be 308.64 ft above NAVD 1988. To obtain stream water-surface elevation values in NAVD 1988, add 308.64 ft to gage height values.
Metadata Element Location Metadata Metadata Code
Agency
U.S. Geological Survey USGS
Site identification number
12181000 n/a
Site name
SKAGIT RIVER AT MARBLEMOUNT, WA n/a
Site type
Stream
ST
DMS latitude 483202 n/a
DMS longitude 1212543 n/a
Decimal latitude 48.5337306 n/a
Decimal longitude -121.4298499 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
Skagit County 057
Country US n/a
Land net location description NESWS07 T35N R11E W n/a
Name of location map n/a
Scale of location map n/a
Altitude of Gage/land surface 308.64 feet n/a
Method altitude determined Level or other surveyed method. L
Altitude accuracy .03 feet n/a
Altitude datum
North American Vertical Datum of 1988 NAVD88
Subbasin hydrologic unit
17110005
Drainage basin
n/a
Topographic setting
n/a
Flags for instruments at site YNNNYNNNNNNNNNNNNNNNNNNNNNNNNN n/a
Date of first construction
n/a
Date site established or inventoried n/a
Drainage area
1381 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

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