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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 >  NARS >  NARS-WWAP99-0515

WILLAPA RIVER (NARS-WWAP99-0515) 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 National Aquatic Resource Survey Data (identifier NARS), has the name "WILLAPA RIVER" and has the identifier NARS-WWAP99-0515. This site is in the watershed defined by the 8 digit Hydrologic Unit Code (HUC)17100106.

This site is located in Pacific County County, Washington at 46.5700000 degrees latitude and -123.6100000 degrees longitude using the datum NAD27. No horizontal location accuracy metadata is available. This site is at an elevation of 36 m 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 "NARS-WWAP99-0515" 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 2000 - 2000
Inorganics, Major, Metals 2000 - 2000
Inorganics, Major, Non-metals 2000 - 2000
Inorganics, Minor, Metals 2000 - 2000
Inorganics, Minor, Non-metals 2000 - 2000
Nutrient 2000 - 2000
Organics, Other 2000 - 2000
Physical 2000 - 2000
Sediment 2000 - 2000
*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 NARS
OrganizationFormalName EPA National Aquatic Resource Survey Data
MonitoringLocationIdentifier NARS-WWAP99-0515
MonitoringLocationName WILLAPA RIVER
MonitoringLocationTypeName River/Stream
MonitoringLocationDescriptionText FLOW is PARTIAL WADEABLE/SITE TYPE is EMAPPROB/Strahler Stream Order is 4/WATERSHED AREA is 221.4068km^2/Station Weight (km): 803.4067/IBI Score: 60.231/OE Taxa Loss: 0.873
HUCEightDigitCode 17100106
LatitudeMeasure 46.5700000
LongitudeMeasure -123.6100000
HorizontalCollectionMethodName Interpolation-Digital Map Source (Tiger)
HorizontalCoordinateReferenceSystemDatumName NAD27
VerticalMeasure/MeasureValue 36
VerticalMeasure/MeasureUnitCode m
VerticalCollectionMethodName Photogrammetric
VerticalCoordinateReferenceSystemDatumName NAVD88
CountryCode US
StateCode 53
CountyCode 049
ProviderName STORET