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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-05453100

Iowa River at Marengo, IA (USGS-05453100) 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 "Iowa River at Marengo, IA" and has the identifier USGS-05453100. This site is in the watershed defined by the 8 digit Hydrologic Unit Code (HUC)07080208. See more details of this site the the USGS NWIS Web page for this site. This site has a drainage area of 2794 sq mi.

This site is located in Iowa County County, Iowa at 41.81272566000000 degrees latitude and -92.0647920000000 degrees longitude using the datum NAD83. The horizontal location collection method was "Interpolated from MAP." and the accuracy is 1 seconds. The source map scale is 1:24000. This site is at an elevation of 720.45 feet and the accuracy of the elevation measurement, collected using the method "GNSS2 - Level 2 Quality Survey Grade Global Navigation Satellite System" is .12 feet. The vertical coordinate reference system is NAVD88.

To download the metadata about this site along with water quality data, go to the Portal Page and enter "USGS-05453100" 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 2009 - 2012
Biological, Fish 2009 - 2012
Information 1995 - 2012
Inorganics, Major, Metals 1974 - 1998
Inorganics, Major, Non-metals 1974 - 2012
Inorganics, Minor, Metals 1974 - 1998
Inorganics, Minor, Non-metals 1975 - 1996
Microbiological 1985 - 2008
Nutrient 1974 - 2012
Organics, Other 1985 - 2012
Organics, PCBs 1995 - 2008
Organics, Pesticide 1984 - 2008
Physical 1968 - 2012
Radiochemical 1995 - 1996
Sediment 1975 - 2010
*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-05453100
MonitoringLocationName Iowa River at Marengo, IA
MonitoringLocationTypeName Stream
HUCEightDigitCode 07080208
DrainageAreaMeasure/MeasureValue 2794
DrainageAreaMeasure/MeasureUnitCode sq mi
LatitudeMeasure 41.81272566000000
LongitudeMeasure -92.0647920000000
SourceMapScaleNumeric 24000
HorizontalAccuracyMeasure/MeasureValue 1
HorizontalAccuracyMeasure/MeasureUnitCode seconds
HorizontalCollectionMethodName Interpolated from MAP.
HorizontalCoordinateReferenceSystemDatumName NAD83
VerticalMeasure/MeasureValue 720.45
VerticalMeasure/MeasureUnitCode feet
VerticalAccuracyMeasure/MeasureValue .12
VerticalAccuracyMeasure/MeasureUnitCode feet
VerticalCollectionMethodName GNSS2 - Level 2 Quality Survey Grade Global Navigation Satellite System
VerticalCoordinateReferenceSystemDatumName NAVD88
CountryCode US
StateCode 19
CountyCode 095
ProviderName NWIS