Skip to main content
U.S. flag

An official website of the United States government

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

WQP Home >  Providers >  STORET >  OREGONDEQ >  OREGONDEQ-35332-ORDEQ

Columbia R at McNary Dam 0.5 Mi US Channel Marker 1 St Mi 294 (OREGONDEQ-35332-ORDEQ) site data in the Water Quality Portal

Data Provider: STORET (Learn more about Water Quality Portal Data Providers)

This reservoir site, maintained by the State of Oregon Dept. of Environmental Quality (identifier OREGONDEQ), has the name "Columbia R at McNary Dam 0.5 Mi US Channel Marker 1 St Mi 294" and has the identifier OREGONDEQ-35332-ORDEQ. This site is in the watershed defined by the 8 digit Hydrologic Unit Code (HUC)17070101.

This site is located in Umatilla County County, Oregon at 45.9380925400 degrees latitude and -119.2682605000 degrees longitude using the datum NAD83. No horizontal location accuracy metadata is available.

To download the metadata about this site along with water quality data, go to the Portal Page and enter "OREGONDEQ-35332-ORDEQ" into the "Site ID" box under Site Parameters

What other monitoring locations are upstream or downstream from this one?

Upstream and downstream locations

This map shows all Water Quality Portal stations that are 10 miles upstream (dashed dark blue) and 10 miles downstream (solid light blue) of this monitoring location (indicated by the large blue circle). The upstream and downstream functionality is provided by the Network Linked Data Index.

When were data collected at this location?

Periods of record for data characteristic groups

For a more detailed breakdown of data, go to the Monitoring Report at the EPA How's My Waterway Application
Characteristic Group Date Range*
Biological, Algae, Cyanobacteria 2009 - 2009
Biological, Algae, Phytoplankton, Photosynthetic Pigments 2009 - 2009
Information 2009 - 2009
Inorganics, Major, Metals 2009 - 2009
Inorganics, Major, Non-metals 2009 - 2009
Inorganics, Minor, Metals 2009 - 2009
Inorganics, Minor, Non-metals 2009 - 2009
Microbiological 2009 - 2009
Not Assigned 2009 - 2009
Nutrient 2009 - 2009
Organics, BDEs 2009 - 2009
Organics, Other 2009 - 2009
Organics, PCBs 2009 - 2009
Organics, Pesticide 2009 - 2009
Physical 2009 - 2009
Radiochemical 2009 - 2009
*Date ranges may contain gap years

What other information is available for this location?

Detailed Metadata

For the definitions of the metadata elements, please go to the Water Quality Portal user guide

Location Metadata Value
OrganizationIdentifier OREGONDEQ
OrganizationFormalName State of Oregon Dept. of Environmental Quality
MonitoringLocationIdentifier OREGONDEQ-35332-ORDEQ
MonitoringLocationName Columbia R at McNary Dam 0.5 Mi US Channel Marker 1 St Mi 294
MonitoringLocationTypeName Reservoir
HUCEightDigitCode 17070101
LatitudeMeasure 45.9380925400
LongitudeMeasure -119.2682605000
SourceMapScaleNumeric 24000
HorizontalCollectionMethodName Interpolation-Digital Map Source
HorizontalCoordinateReferenceSystemDatumName NAD83
CountryCode US
StateCode 41
CountyCode 059
ProviderName STORET