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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-401238088444201

20N 4E-9.1f (USGS-401238088444201) 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 "20N 4E-9.1f" and has the identifier USGS-401238088444201. This site is in the watershed defined by the 8 digit Hydrologic Unit Code (HUC)07130009. See more details of this site the the USGS NWIS Web page for this site.

This site is located in Dewitt County County, Illinois at 40.21061110000000 degrees latitude and -88.7453888900000 degrees longitude using the datum NAD83. The horizontal location collection method was "Mapping grade GPS unit (handheld accuracy range 12 to 40 ft)" and the accuracy is .1 seconds. The source map scale is 1:24000. This site is at an elevation of 750 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 aquifer is a Confined multiple aquifers type. The well was contructed on 19920925. The well depth is 200 ft. The well hole depth is 200 ft.

To download the metadata about this site along with water quality data, go to the Portal Page and enter "USGS-401238088444201" 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 1996 - 2008
Inorganics, Major, Metals 1996 - 2007
Inorganics, Major, Non-metals 1996 - 2007
Inorganics, Minor, Metals 1996 - 2007
Inorganics, Minor, Non-metals 1996 - 2007
Nutrient 1996 - 2007
Organics, Other 1996 - 2007
Organics, Pesticide 1996 - 2007
Physical 1996 - 2007
Radiochemical 1996 - 2007
Stable Isotopes 1996 - 2007
*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-401238088444201
MonitoringLocationName 20N 4E-9.1f
MonitoringLocationTypeName Well
HUCEightDigitCode 07130009
LatitudeMeasure 40.21061110000000
LongitudeMeasure -88.7453888900000
SourceMapScaleNumeric 24000
HorizontalAccuracyMeasure/MeasureValue .1
HorizontalAccuracyMeasure/MeasureUnitCode seconds
HorizontalCollectionMethodName Mapping grade GPS unit (handheld accuracy range 12 to 40 ft)
HorizontalCoordinateReferenceSystemDatumName NAD83
VerticalMeasure/MeasureValue 750
VerticalMeasure/MeasureUnitCode feet
VerticalAccuracyMeasure/MeasureValue 5
VerticalAccuracyMeasure/MeasureUnitCode feet
VerticalCollectionMethodName Interpolated from topographic map.
VerticalCoordinateReferenceSystemDatumName NGVD29
CountryCode US
StateCode 17
CountyCode 039
AquiferName Sand and gravel aquifers (glaciated regions)
FormationTypeText Quaternary System
AquiferTypeName Confined multiple aquifers
ConstructionDateText 19920925
WellDepthMeasure/MeasureValue 200
WellDepthMeasure/MeasureUnitCode ft
WellHoleDepthMeasure/MeasureValue 200
WellHoleDepthMeasure/MeasureUnitCode ft
ProviderName NWIS