Skip to main content
U.S. flag

An official website of the United States government

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

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 >  NWIS >  USGS-CO >  USGS-372929105445401

NA03801134DDA1 EW-4U (USGS-372929105445401) site data in the Water Quality Portal

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

This well site, maintained by the USGS Colorado Water Science Center (identifier USGS-CO), has the name "NA03801134DDA1 EW-4U" and has the identifier USGS-372929105445401. This site is in the watershed defined by the 8 digit Hydrologic Unit Code (HUC)13010003. See more details of this site the the USGS NWIS Web page for this site.

This site is located in Alamosa County County, Colorado at 37.49139390000000 degrees latitude and -105.7489076000000 degrees longitude using the datum NAD83. The horizontal location collection method was "Interpolated from MAP." and the accuracy is 5 seconds. The source map scale is 1:24000. This site is at an elevation of 7519.40 feet and the accuracy of the elevation measurement, collected using the method "Level or other surveyed method." is 0.1 feet. The vertical coordinate reference system is NGVD29.

The aquifer is a Unconfined single aquifer type. The well was contructed on 19800626. The well depth is 29.5 ft. The well hole depth is 30.0 ft.

To download the metadata about this site along with water quality data, go to the Portal Page and enter "USGS-372929105445401" 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, Metals 1980 - 1980
Inorganics, Major, Non-metals 1980 - 1980
Inorganics, Minor, Metals 1980 - 1980
Nutrient 1980 - 1980
Physical 1980 - 1980
*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 USGS-CO
OrganizationFormalName USGS Colorado Water Science Center
MonitoringLocationIdentifier USGS-372929105445401
MonitoringLocationName NA03801134DDA1 EW-4U
MonitoringLocationTypeName Well
HUCEightDigitCode 13010003
LatitudeMeasure 37.49139390000000
LongitudeMeasure -105.7489076000000
SourceMapScaleNumeric 24000
HorizontalAccuracyMeasure/MeasureValue 5
HorizontalAccuracyMeasure/MeasureUnitCode seconds
HorizontalCollectionMethodName Interpolated from MAP.
HorizontalCoordinateReferenceSystemDatumName NAD83
VerticalMeasure/MeasureValue 7519.40
VerticalMeasure/MeasureUnitCode feet
VerticalAccuracyMeasure/MeasureValue 0.1
VerticalAccuracyMeasure/MeasureUnitCode feet
VerticalCollectionMethodName Level or other surveyed method.
VerticalCoordinateReferenceSystemDatumName NGVD29
CountryCode US
StateCode 08
CountyCode 003
AquiferTypeName Unconfined single aquifer
ConstructionDateText 19800626
WellDepthMeasure/MeasureValue 29.5
WellDepthMeasure/MeasureUnitCode ft
WellHoleDepthMeasure/MeasureValue 30.0
WellHoleDepthMeasure/MeasureUnitCode ft
ProviderName NWIS