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-MT >  USGS-481856105103901

30N50E35ABAC01 (USGS-481856105103901) 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 Montana Water Science Center (identifier USGS-MT), has the name "30N50E35ABAC01" and has the identifier USGS-481856105103901. This site is in the watershed defined by the 8 digit Hydrologic Unit Code (HUC)10060003. See more details of this site the the USGS NWIS Web page for this site.

This site is located in Roosevelt County County, Montana at 48.31557590000000 degrees latitude and -105.1780368000000 degrees longitude using the datum NAD83. The horizontal location collection method was "Interpolated from MAP." and the accuracy is 1 seconds. The source map scale is 1:24000. This site is at an elevation of 2430 feet and the accuracy of the elevation measurement, collected using the method "Interpolated from topographic map." is 10 feet. The vertical coordinate reference system is NGVD29.

The geologic formation type is Flaxville Formation. The well was contructed on 19750612. The well depth is 230 ft. The well hole depth is 230 ft.

To download the metadata about this site along with water quality data, go to the Portal Page and enter "USGS-481856105103901" 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 1983 - 1983
Inorganics, Major, Non-metals 1983 - 1983
Inorganics, Minor, Metals 1983 - 1983
Nutrient 1983 - 1983
Physical 1983 - 1983
*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-MT
OrganizationFormalName USGS Montana Water Science Center
MonitoringLocationIdentifier USGS-481856105103901
MonitoringLocationName 30N50E35ABAC01
MonitoringLocationTypeName Well
HUCEightDigitCode 10060003
LatitudeMeasure 48.31557590000000
LongitudeMeasure -105.1780368000000
SourceMapScaleNumeric 24000
HorizontalAccuracyMeasure/MeasureValue 1
HorizontalAccuracyMeasure/MeasureUnitCode seconds
HorizontalCollectionMethodName Interpolated from MAP.
HorizontalCoordinateReferenceSystemDatumName NAD83
VerticalMeasure/MeasureValue 2430
VerticalMeasure/MeasureUnitCode feet
VerticalAccuracyMeasure/MeasureValue 10
VerticalAccuracyMeasure/MeasureUnitCode feet
VerticalCollectionMethodName Interpolated from topographic map.
VerticalCoordinateReferenceSystemDatumName NGVD29
CountryCode US
StateCode 30
CountyCode 085
FormationTypeText Flaxville Formation
ConstructionDateText 19750612
WellDepthMeasure/MeasureValue 230
WellDepthMeasure/MeasureUnitCode ft
WellHoleDepthMeasure/MeasureValue 230
WellHoleDepthMeasure/MeasureUnitCode ft
ProviderName NWIS