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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 legacy user interface will continue to function for several weeks. However, this user interface only serves WQX2.2 profiles, which do NOT contain USGS data added after March 11, 2024.

WQP Home >  Providers >  STORET >  R10PORTLANDHARBOR >  R10PORTLANDHARBOR-LW3-C635

C635 (R10PORTLANDHARBOR-LW3-C635) 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 EPA Region 10 Superfund Portland Harbor Site (identifier R10PORTLANDHARBOR), has the name "C635" and has the identifier R10PORTLANDHARBOR-LW3-C635. 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 45.5951428900 degrees latitude and -122.7750804000 degrees longitude using the datum NAD83. No horizontal location accuracy metadata is available. This site is at an elevation of -72 ft No vertical location accuracy metadata is available.

To download the metadata about this site along with water quality data, go to the Portal Page and enter "R10PORTLANDHARBOR-LW3-C635" 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*
Information 2007 - 2007
Inorganics, Minor, Metals 2007 - 2007
Inorganics, Minor, Non-metals 2007 - 2007
Not Assigned 2007 - 2007
Organics, Other 2007 - 2007
Organics, PCBs 2007 - 2007
Organics, Pesticide 2007 - 2007
Physical 2007 - 2007
Radiochemical 2007 - 2007
Stable Isotopes 2007 - 2007
*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 R10PORTLANDHARBOR
OrganizationFormalName EPA Region 10 Superfund Portland Harbor Site
MonitoringLocationIdentifier R10PORTLANDHARBOR-LW3-C635
MonitoringLocationName C635
MonitoringLocationTypeName River/Stream
MonitoringLocationDescriptionText Rivermile 4.9
HUCEightDigitCode 17090012
LatitudeMeasure 45.5951428900
LongitudeMeasure -122.7750804000
HorizontalCollectionMethodName GPS Code (Pseudo Range) Differential
HorizontalCoordinateReferenceSystemDatumName NAD83
VerticalMeasure/MeasureValue -72
VerticalMeasure/MeasureUnitCode ft
VerticalCollectionMethodName Other
VerticalCoordinateReferenceSystemDatumName NAVD88
CountryCode US
StateCode 41
CountyCode 051
ProviderName STORET