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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-11340001

Shell Rock River at Rockford (68) (21IOWA_WQX-11340001) 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 "Shell Rock River at Rockford (68)" and has the identifier 21IOWA_WQX-11340001. This site is in the watershed defined by the 8 digit Hydrologic Unit Code (HUC)07080202.

This site is located in Floyd County County, Iowa at 43.0522490000 degrees latitude and -92.9432260000 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-11340001" 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 2002 - 2004
Biological, Algae, Phytoplankton 2002 - 2004
Biological, Photosynthetic Pigments 2002 - 2004
Inorganics, Major, Non-metals 2002 - 2004
Microbiological 2001 - 2004
Nutrient 2001 - 2004
Physical 2001 - 2004
*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-11340001
MonitoringLocationName Shell Rock River at Rockford (68)
MonitoringLocationTypeName River/Stream
MonitoringLocationDescriptionText Bridge at Highway 147 T95N, R18W, Section 11 (SW 1/4) 2001 TMDL monitoring site
HUCEightDigitCode 07080202
LatitudeMeasure 43.0522490000
LongitudeMeasure -92.9432260000
SourceMapScaleNumeric 0
HorizontalCollectionMethodName Interpolation-Map
HorizontalCoordinateReferenceSystemDatumName NAD83
CountryCode US
StateCode 19
CountyCode 067
ProviderName STORET