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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-IA >  USGS-05451070

South Fork Iowa River Headwaters nr Blairsburg, IA (USGS-05451070) 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 Iowa Water Science Center (identifier USGS-IA), has the name "South Fork Iowa River Headwaters nr Blairsburg, IA" and has the identifier USGS-05451070. This site is in the watershed defined by the 8 digit Hydrologic Unit Code (HUC)07080207. See more details of this site the the USGS NWIS Web page for this site. This site has a drainage area of 2.7 sq mi.

This site is located in Hamilton County County, Iowa at 42.50386110000000 degrees latitude and -93.6369722000000 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 1202.21 feet and the accuracy of the elevation measurement, collected using the method "Interpolated from Digital Elevation Model" is .01 feet. The vertical coordinate reference system is NGVD29.

To download the metadata about this site along with water quality data, go to the Portal Page and enter "USGS-05451070" 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 2006 - 2008
Biological, Fish 2006 - 2008
Information 2006 - 2008
Inorganics, Major, Metals 2006 - 2008
Inorganics, Major, Non-metals 2006 - 2008
Inorganics, Minor, Metals 2006 - 2008
Nutrient 2006 - 2008
Organics, Other 2006 - 2008
Organics, PCBs 2006 - 2006
Organics, Pesticide 2006 - 2008
Physical 2006 - 2008
Sediment 2006 - 2008
Stable Isotopes 2007 - 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-IA
OrganizationFormalName USGS Iowa Water Science Center
MonitoringLocationIdentifier USGS-05451070
MonitoringLocationName South Fork Iowa River Headwaters nr Blairsburg, IA
MonitoringLocationTypeName Stream
HUCEightDigitCode 07080207
DrainageAreaMeasure/MeasureValue 2.7
DrainageAreaMeasure/MeasureUnitCode sq mi
LatitudeMeasure 42.50386110000000
LongitudeMeasure -93.6369722000000
SourceMapScaleNumeric 24000
HorizontalAccuracyMeasure/MeasureValue .1
HorizontalAccuracyMeasure/MeasureUnitCode seconds
HorizontalCollectionMethodName Mapping grade GPS unit (handheld accuracy range 12 to 40 ft)
HorizontalCoordinateReferenceSystemDatumName NAD83
VerticalMeasure/MeasureValue 1202.21
VerticalMeasure/MeasureUnitCode feet
VerticalAccuracyMeasure/MeasureValue .01
VerticalAccuracyMeasure/MeasureUnitCode feet
VerticalCollectionMethodName Interpolated from Digital Elevation Model
VerticalCoordinateReferenceSystemDatumName NGVD29
CountryCode US
StateCode 19
CountyCode 079
ProviderName NWIS