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New WQX 3.0 profiles are available at waterqualitydata.us/beta/. These profiles will contain recent USGS data added since March 11, 2024, which marks the beginning of limited accessibility for USGS data. Read more about the 3.0 profiles and associated changes here. This user interface only serves WQX2.2 profiles, which do NOT contain USGS data added after March 11, 2024.

WQP Home >  Providers >  STORET >  OREGONDEQ >  OREGONDEQ-10801-ORDEQ

Swan Island Channel Midpoint (OREGONDEQ-10801-ORDEQ) site data in the Water Quality Portal

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

This river/stream site, maintained by the State of Oregon Dept. of Environmental Quality (identifier OREGONDEQ), has the name "Swan Island Channel Midpoint" and has the identifier OREGONDEQ-10801-ORDEQ. This site is in the watershed defined by the 8 digit Hydrologic Unit Code (HUC)17090012.

This site is located in Multnomah County County, Oregon at 45.5658632500 degrees latitude and -122.7142955000 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-10801-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 1991 - 2025
Biological, Algae, Phytoplankton 1991 - 2025
Cyanotoxins, Phytotoxins 2017 - 2017
Inorganics, Major, Metals 1991 - 2024
Inorganics, Major, Non-metals 1996 - 2015
Inorganics, Minor, Metals 1988 - 2024
Inorganics, Minor, Non-metals 1988 - 2015
Microbiological 1991 - 2025
Not Assigned 1988 - 1988
Nutrient 1991 - 2025
Organics, BDEs 1988 - 1988
Organics, Other 1988 - 2025
Organics, PCBs 1988 - 1988
Organics, Pesticide 1988 - 1996
Physical 1991 - 2025
Radiochemical 2008 - 2010
Stable Isotopes 1988 - 1988
*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-10801-ORDEQ
MonitoringLocationName Swan Island Channel Midpoint
MonitoringLocationTypeName River/Stream
HUCEightDigitCode 17090012
LatitudeMeasure 45.5658632500
LongitudeMeasure -122.7142955000
SourceMapScaleNumeric 24000
HorizontalCollectionMethodName Interpolation-Digital Map Source
HorizontalCoordinateReferenceSystemDatumName NAD83
CountryCode US
StateCode 41
CountyCode 051
ProviderName STORET