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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 >  WASIT >  WASIT-063

Main Stilly (WASIT-063) site data in the Water Quality Portal

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

This facility other site, maintained by the Stillaguamish Tribe of Indians of Washington (Tribal) (identifier WASIT), has the name "Main Stilly" and has the identifier WASIT-063. This site is in the watershed defined by the 8 digit Hydrologic Unit Code (HUC)17110008.

This site is located in Snohomish County County, Washington at 48.1845000000 degrees latitude and -122.1940000000 degrees longitude using the datum WGS84. 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 "WASIT-063" 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 1998 - 1998
Microbiological 1996 - 2001
Physical 1996 - 2001
*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 WASIT
OrganizationFormalName Stillaguamish Tribe of Indians of Washington (Tribal)
MonitoringLocationIdentifier WASIT-063
MonitoringLocationName Main Stilly
MonitoringLocationTypeName Facility Other
MonitoringLocationDescriptionText Portage Cr @Tulalip PC3; old Pacific Hwy.
HUCEightDigitCode 17110008
LatitudeMeasure 48.1845000000
LongitudeMeasure -122.1940000000
SourceMapScaleNumeric 25
HorizontalCollectionMethodName Interpolation-Map
HorizontalCoordinateReferenceSystemDatumName WGS84
CountryCode US
StateCode 53
CountyCode 061
ProviderName STORET