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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-11230009

Rock Creek at Hwy 30 (63) (21IOWA_WQX-11230009) 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 "Rock Creek at Hwy 30 (63)" and has the identifier 21IOWA_WQX-11230009. This site is in the watershed defined by the 8 digit Hydrologic Unit Code (HUC)07080101.

This site is located in Clinton County County, Iowa at 41.8160010000 degrees latitude and -90.3513320000 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-11230009" 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*
Nutrient 2001 - 2001
Physical 2001 - 2001
*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-11230009
MonitoringLocationName Rock Creek at Hwy 30 (63)
MonitoringLocationTypeName River/Stream
MonitoringLocationDescriptionText Rock Creek at Headquarters on North Side of Hwy 30, Section 14, T81N, R5E. 2001 TMDL Monitoring Site (collected by UHL).
HUCEightDigitCode 07080101
LatitudeMeasure 41.8160010000
LongitudeMeasure -90.3513320000
SourceMapScaleNumeric 0
HorizontalCollectionMethodName Interpolation-Map
HorizontalCoordinateReferenceSystemDatumName NAD83
CountryCode US
StateCode 19
CountyCode 045
ProviderName STORET