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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-AR >  USGS-07194790

MUDDY FORK ILLINOIS RIVER NEAR SAVOY, ARK. (USGS-07194790) site data in the Water Quality Portal

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

This stream site, maintained by the USGS Arkansas Water Science Center (identifier USGS-AR), has the name "MUDDY FORK ILLINOIS RIVER NEAR SAVOY, ARK." and has the identifier USGS-07194790. This site is in the watershed defined by the 8 digit Hydrologic Unit Code (HUC)11110103. See more details of this site the the USGS NWIS Web page for this site. This site has a drainage area of 73.5 sq mi.

This site is located in Washington County County, Arkansas at 36.07008046000000 degrees latitude and -94.3485446000000 degrees longitude using the datum NAD83. The horizontal location collection method was "Interpolated from MAP." and the accuracy is 10 seconds. The source map scale is 1:24000.

To download the metadata about this site along with water quality data, go to the Portal Page and enter "USGS-07194790" 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*
Biological, Algae, Phytoplankton, Cyanobacteria, Periphyton 1981 - 1981
Biological, Algae, Phytoplankton, Photosynthetic Pigments 1981 - 1981
Biological, Photosynthetic Pigments 1981 - 1981
Inorganics, Major, Non-metals 1978 - 1981
Microbiological 1978 - 1979
Nutrient 1978 - 1979
Physical 1978 - 1988
*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-AR
OrganizationFormalName USGS Arkansas Water Science Center
MonitoringLocationIdentifier USGS-07194790
MonitoringLocationName MUDDY FORK ILLINOIS RIVER NEAR SAVOY, ARK.
MonitoringLocationTypeName Stream
HUCEightDigitCode 11110103
DrainageAreaMeasure/MeasureValue 73.5
DrainageAreaMeasure/MeasureUnitCode sq mi
LatitudeMeasure 36.07008046000000
LongitudeMeasure -94.3485446000000
SourceMapScaleNumeric 24000
HorizontalAccuracyMeasure/MeasureValue 10
HorizontalAccuracyMeasure/MeasureUnitCode seconds
HorizontalCollectionMethodName Interpolated from MAP.
HorizontalCoordinateReferenceSystemDatumName NAD83
CountryCode US
StateCode 05
CountyCode 143
ProviderName NWIS