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WQP Home >  Providers >  STORET >  IL_EPA_WQX >  IL_EPA_WQX-RHZE

Arrowhead (IL_EPA_WQX-RHZE) site data in the Water Quality Portal

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

This lake site, maintained by the illinois epa (identifier IL_EPA_WQX), has the name "Arrowhead" and has the identifier IL_EPA_WQX-RHZE. This site is in the watershed defined by the 8 digit Hydrologic Unit Code (HUC)07120003.

This site is located in Cook County County, Illinois at 41.6515835532 degrees latitude and -87.7931158671 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 "IL_EPA_WQX-RHZE" 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 2011 - 2012
Biological, Aquatic Plants 2011 - 2011
Biological, Counts 2011 - 2011
Information 2011 - 2012
Inorganics, Minor, Metals 2017 - 2018
Not Assigned 2011 - 2011
Organics, Other 2004 - 2004
Organics, Pesticide 2004 - 2004
Physical 2011 - 2012
Physical, Habitat 2011 - 2011
Sediment 2011 - 2011
*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 IL_EPA_WQX
OrganizationFormalName illinois epa
MonitoringLocationIdentifier IL_EPA_WQX-RHZE
MonitoringLocationName Arrowhead
MonitoringLocationTypeName Lake
MonitoringLocationDescriptionText This site represents the entire lake, but not necessarily any specific location in the lake. The ArcGIS Central Points Coordinates tool was used, on lake-polygon features, to derive geographic coordinates.
HUCEightDigitCode 07120003
LatitudeMeasure 41.6515835532
LongitudeMeasure -87.7931158671
HorizontalCollectionMethodName Interpolation-Digital Map Source
HorizontalCoordinateReferenceSystemDatumName NAD83
CountryCode US
StateCode 17
CountyCode 031
ProviderName STORET