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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 >  NWIS >  USGS-IL >  USGS-401754090032001

21N 8W- 6.8e (USGS-401754090032001) 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 Illinois Water Science Center (identifier USGS-IL), has the name "21N 8W- 6.8e" and has the identifier USGS-401754090032001. This site is in the watershed defined by the 8 digit Hydrologic Unit Code (HUC)07130003. See more details of this site the the USGS NWIS Web page for this site.

This site is located in Mason County County, Illinois at 40.29837609000000 degrees latitude and -90.0556727000000 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 470.00 feet and the accuracy of the elevation measurement, collected using the method "Interpolated from topographic map." is 5 feet. The vertical coordinate reference system is NGVD29.

This site is located in the "Sand and gravel aquifers (glaciated regions)" aquifer. The geologic formation type is Quaternary System. The well was contructed on 197409. The well depth is 96 ft. The well hole depth is 96.5 ft.

To download the metadata about this site along with water quality data, go to the Portal Page and enter "USGS-401754090032001" 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 1984 - 1985
Inorganics, Major, Metals 1984 - 1992
Inorganics, Major, Non-metals 1984 - 1992
Inorganics, Minor, Metals 1984 - 2013
Inorganics, Minor, Non-metals 1984 - 1992
Nutrient 1984 - 1992
Organics, Other 1984 - 2001
Organics, PCBs 1990 - 1992
Organics, Pesticide 1985 - 2001
Physical 1984 - 2013
Radiochemical 1985 - 1992
*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-IL
OrganizationFormalName USGS Illinois Water Science Center
MonitoringLocationIdentifier USGS-401754090032001
MonitoringLocationName 21N 8W- 6.8e
MonitoringLocationTypeName Well
HUCEightDigitCode 07130003
LatitudeMeasure 40.29837609000000
LongitudeMeasure -90.0556727000000
SourceMapScaleNumeric 24000
HorizontalAccuracyMeasure/MeasureValue 5
HorizontalAccuracyMeasure/MeasureUnitCode seconds
HorizontalCollectionMethodName Interpolated from MAP.
HorizontalCoordinateReferenceSystemDatumName NAD83
VerticalMeasure/MeasureValue 470.00
VerticalMeasure/MeasureUnitCode feet
VerticalAccuracyMeasure/MeasureValue 5
VerticalAccuracyMeasure/MeasureUnitCode feet
VerticalCollectionMethodName Interpolated from topographic map.
VerticalCoordinateReferenceSystemDatumName NGVD29
CountryCode US
StateCode 17
CountyCode 125
AquiferName Sand and gravel aquifers (glaciated regions)
FormationTypeText Quaternary System
ConstructionDateText 197409
WellDepthMeasure/MeasureValue 96
WellDepthMeasure/MeasureUnitCode ft
WellHoleDepthMeasure/MeasureValue 96.5
WellHoleDepthMeasure/MeasureUnitCode ft
ProviderName NWIS