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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 >  STORET >  21FLCEN_WQX >  21FLCEN_WQX-20020012

OKLRIVREF (21FLCEN_WQX-20020012) 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 Fl Dept. of Environmental Protection, Central District (identifier 21FLCEN_WQX), has the name "OKLRIVREF" and has the identifier 21FLCEN_WQX-20020012. This site is in the watershed defined by the 8 digit Hydrologic Unit Code (HUC)03080102.

This site is located in Marion County County, Florida at 29.3734200000 degrees latitude and -81.9017600000 degrees longitude using the datum UNKWN. 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 "21FLCEN_WQX-20020012" 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 2009 - 2010
Biological, Algae, Cyanobacteria 1999 - 2010
Biological, Algae, Phytoplankton 1999 - 1999
Biological, Algae, Phytoplankton, Cyanobacteria, Periphyton 2008 - 2008
Biological, Algae, Phytoplankton, Photosynthetic Pigments 1999 - 2010
Information 1999 - 2011
Inorganics, Major, Metals 2009 - 2010
Inorganics, Major, Non-metals 2000 - 2010
Inorganics, Minor, Metals 2009 - 2011
Inorganics, Minor, Non-metals 2009 - 2010
Microbiological 2000 - 2002
Nutrient 1999 - 2010
Organics, Other 1999 - 2010
Physical 1999 - 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 21FLCEN_WQX
OrganizationFormalName Fl Dept. of Environmental Protection, Central District
MonitoringLocationIdentifier 21FLCEN_WQX-20020012
MonitoringLocationName OKLRIVREF
MonitoringLocationTypeName River/Stream
MonitoringLocationDescriptionText OKLAWAHA RIVER AT SR 316
HUCEightDigitCode 03080102
LatitudeMeasure 29.3734200000
LongitudeMeasure -81.9017600000
HorizontalCollectionMethodName Unknown
HorizontalCoordinateReferenceSystemDatumName UNKWN
CountryCode US
StateCode 12
CountyCode 083
ProviderName STORET