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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 user interface only serves WQX2.2 profiles, which do NOT contain USGS data added after March 11, 2024.

WQP Home >  Providers >  STORET >  21IOWA_WQX >  21IOWA_WQX-10910002

North River near Norwalk (R57) (21IOWA_WQX-10910002) site data in the Water Quality Portal

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

This river/stream site, maintained by the Iowa DNR Surface Water Monitoring Data (identifier 21IOWA_WQX), has the name "North River near Norwalk (R57)" and has the identifier 21IOWA_WQX-10910002. This site is in the watershed defined by the 8 digit Hydrologic Unit Code (HUC)07100008.

This site is located in Warren County County, Iowa at 41.4578060000 degrees latitude and -93.6550210000 degrees longitude using the datum NAD83. No horizontal location accuracy metadata is available.

To download the metadata about this site along with water quality data, go to the Portal Page and enter "21IOWA_WQX-10910002" 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, Cyanobacteria 1999 - 2005
Biological, Algae, Phytoplankton 1999 - 2020
Biological, Photosynthetic Pigments 1999 - 2005
Information 2001 - 2006
Inorganics, Major, Metals 2014 - 2020
Inorganics, Major, Non-metals 1998 - 2020
Inorganics, Minor, Metals 1998 - 2020
Inorganics, Minor, Non-metals 1998 - 2020
Microbiological 1999 - 2020
Nutrient 1998 - 2020
Organics, Other 1999 - 2020
Organics, PCBs 1999 - 2003
Organics, Pesticide 1999 - 2020
Physical 1998 - 2020
*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 21IOWA_WQX
OrganizationFormalName Iowa DNR Surface Water Monitoring Data
MonitoringLocationIdentifier 21IOWA_WQX-10910002
MonitoringLocationName North River near Norwalk (R57)
MonitoringLocationTypeName River/Stream
MonitoringLocationDescriptionText County Road R57 bridge 1.75 miles SE of Norwalk
HUCEightDigitCode 07100008
LatitudeMeasure 41.4578060000
LongitudeMeasure -93.6550210000
SourceMapScaleNumeric 0
HorizontalCollectionMethodName Interpolation-Map
HorizontalCoordinateReferenceSystemDatumName NAD83
CountryCode US
StateCode 19
CountyCode 181
ProviderName STORET