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Important Inventory Page

USGS Parameter Group Data Types Start Date End Date
Information Water-quality 1975-07-15 1980-10-23
Inorganics, Major, Metals Water-quality 1975-07-15 1980-10-23
Inorganics, Major, Non-metals Water-quality 1975-07-15 1980-10-23
Inorganics, Minor, Non-metals Water-quality 1980-07-24 1980-10-23
Inorganics, Minor, metals Water-quality 1980-07-24 1980-10-23
Nutrient Water-quality 1980-07-24 1980-10-23
Organics, other Water-quality 1980-07-24 1980-10-23
Physical Water-quality 1975-07-15 1980-10-23
Water Data for the Nation inventory

Monitoring location 451604121442600 is associated with a Lake, Reservoir, Impoundment in Clackamas County, Oregon. Water data back to 1975 are available online.

Metadata Element Location Metadata Metadata Code
Agency
U.S. Geological Survey USGS
Site identification number
451604121442600 n/a
Site name
TRILLIUM LAKE (CLACKAMAS COUNTY) OREG. n/a
Site type
Lake, Reservoir, Impoundment
LK
DMS latitude 451604 n/a
DMS longitude 1214426 n/a
Decimal latitude 45.26761837 n/a
Decimal longitude -121.7417442 n/a
Latitude-longitude method
Interpolated from MAP. M
Latitude-longitude accuracy
Unknown or unspecified. U
Latitude-longitude datum
North American Datum of 1927 NAD27
Decimal Latitude-longitude datum North American Datum of 1983 NAD83
District
Oregon 41
State
Oregon 41
County
Clackamas County 005
Country US n/a
Land net location description n/a
Name of location map n/a
Scale of location map n/a
Altitude of Gage/land surface n/a
Method altitude determined n/a
Altitude accuracy n/a
Altitude datum
n/a
Subbasin hydrologic unit
17080001
Drainage basin
n/a
Topographic setting
n/a
Flags for instruments at site NNNNNNNNNNNNNNNNNNNNNNNNNNNNNN 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 PST n/a
Site honors Daylight Saving Time
Y n/a
Data reliability
Data have been checked by the reporting agency. C
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