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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-413120090262701

18N1W-26.4d1 (USGS-413120090262701) 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 "18N1W-26.4d1" and has the identifier USGS-413120090262701. This site is in the watershed defined by the 8 digit Hydrologic Unit Code (HUC)07080101. See more details of this site the the USGS NWIS Web page for this site.

This site is located in Rock Island County County, Illinois at 41.52222220000000 degrees latitude and -90.4408333000000 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 571.93 feet and the accuracy of the elevation measurement, collected using the method "Level or other surveyed method." is .1 feet. The vertical coordinate reference system is NGVD29.

This site is located in the "Silurian-Devonian aquifers" aquifer. The geologic formation type is Devonian System. The aquifer is a Unconfined single aquifer type. The well was contructed on 20000401. The well depth is 17 ft. The well hole depth is 17 ft.

To download the metadata about this site along with water quality data, go to the Portal Page and enter "USGS-413120090262701" 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 2000 - 2000
Inorganics, Minor, Metals 2000 - 2000
Inorganics, Minor, Non-metals 2000 - 2000
Physical 2000 - 2000
*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-413120090262701
MonitoringLocationName 18N1W-26.4d1
MonitoringLocationTypeName Well
HUCEightDigitCode 07080101
LatitudeMeasure 41.52222220000000
LongitudeMeasure -90.4408333000000
SourceMapScaleNumeric 24000
HorizontalAccuracyMeasure/MeasureValue 1
HorizontalAccuracyMeasure/MeasureUnitCode seconds
HorizontalCollectionMethodName Mapping grade GPS unit (handheld accuracy range 12 to 40 ft)
HorizontalCoordinateReferenceSystemDatumName NAD83
VerticalMeasure/MeasureValue 571.93
VerticalMeasure/MeasureUnitCode feet
VerticalAccuracyMeasure/MeasureValue .1
VerticalAccuracyMeasure/MeasureUnitCode feet
VerticalCollectionMethodName Level or other surveyed method.
VerticalCoordinateReferenceSystemDatumName NGVD29
CountryCode US
StateCode 17
CountyCode 161
AquiferName Silurian-Devonian aquifers
FormationTypeText Devonian System
AquiferTypeName Unconfined single aquifer
ConstructionDateText 20000401
WellDepthMeasure/MeasureValue 17
WellDepthMeasure/MeasureUnitCode ft
WellHoleDepthMeasure/MeasureValue 17
WellHoleDepthMeasure/MeasureUnitCode ft
ProviderName NWIS