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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 >  WA_ECOLOGY >  WA_ECOLOGY-48A140

METHOW RIVER AT TWISP (WA_ECOLOGY-48A140) 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 Washington Department Of Ecology (identifier WA_ECOLOGY), has the name "METHOW RIVER AT TWISP" and has the identifier WA_ECOLOGY-48A140. This site is in the watershed defined by the 8 digit Hydrologic Unit Code (HUC)17020008.

This site is located in Okanogan County County, Washington at 48.3479000000 degrees latitude and -120.1070000000 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 "WA_ECOLOGY-48A140" 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*
Microbiological 2009 - 2012
Nutrient 2009 - 2012
Organics, Other 2010 - 2011
Physical 2009 - 2012
*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 WA_ECOLOGY
OrganizationFormalName Washington Department Of Ecology
MonitoringLocationIdentifier WA_ECOLOGY-48A140
MonitoringLocationName METHOW RIVER AT TWISP
MonitoringLocationTypeName River/Stream
MonitoringLocationDescriptionText THE INTERSECTION WITH WAGNER RD (GAGE HOUSE .5 MILE UP WAGNER RD). THIS STATION WAS ACTIVATED 881001 IN LIEU OF STATION 48A130. THIS SITE WAS NOT USED PREVIOUSLY DUE TO A WARM OUTFALL FROM THE NOW DEFUNCT PINE MILL APPROXIMATELY 100-150 FEET UPSTREAM.
HUCEightDigitCode 17020008
LatitudeMeasure 48.3479000000
LongitudeMeasure -120.1070000000
SourceMapScaleNumeric 25000
HorizontalCollectionMethodName Interpolation-Map
HorizontalCoordinateReferenceSystemDatumName NAD83
CountryCode US
StateCode 53
CountyCode 047
ProviderName STORET