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WQP Home >  Providers >  STORET >  21COL001 >  21COL001-9480

ARRASTA GULCH @ RD. 21 (21COL001-9480) 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 Colorado Dept. of Public Health & Environment (identifier 21COL001), has the name "ARRASTA GULCH @ RD. 21" and has the identifier 21COL001-9480. This site is in the watershed defined by the 8 digit Hydrologic Unit Code (HUC)14080104.

This site is located in San Juan County County, Colorado at 37.8266000 degrees latitude and -107.6248000 degrees longitude using the datum NAD27. No horizontal location accuracy metadata is available. This site is at an elevation of 9540 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 "21COL001-9480" 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*
Inorganics, Major, Non-metals 2004 - 2005
Inorganics, Minor, Metals 2004 - 2005
Inorganics, Minor, Non-metals 2004 - 2005
Microbiological 2005 - 2005
Nutrient 2004 - 2005
Physical 2004 - 2005
Radiochemical 2004 - 2004
*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 21COL001
OrganizationFormalName Colorado Dept. of Public Health & Environment
MonitoringLocationIdentifier 21COL001-9480
MonitoringLocationName ARRASTA GULCH @ RD. 21
MonitoringLocationTypeName River/Stream
MonitoringLocationDescriptionText From Silverton, take Rd. 2 until Rd. 21. Take a right and follow. Continue right and cross over bridge. Continue about 0.1 miles to where Rd. 21 crosses gulch.
HUCEightDigitCode 14080104
LatitudeMeasure 37.8266000
LongitudeMeasure -107.6248000
HorizontalCollectionMethodName GPS Code (Pseudo Range) Standard Position (SA Off)
HorizontalCoordinateReferenceSystemDatumName NAD27
VerticalMeasure/MeasureValue 9540
VerticalMeasure/MeasureUnitCode ft
VerticalCollectionMethodName GPS Code (Pseudo Range) Standard Position (SA Off)
VerticalCoordinateReferenceSystemDatumName NGVD29
CountryCode US
StateCode 08
CountyCode 111
ProviderName STORET