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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 >  21FLSJUD_WQX >  21FLSJUD_WQX-M-8

INTERCOASTAL WATERWAY AT CM35 (21FLSJUD_WQX-M-8) 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 ST. JOHNS COUNTY UTILITY DEPARTMENT (identifier 21FLSJUD_WQX), has the name "INTERCOASTAL WATERWAY AT CM35" and has the identifier 21FLSJUD_WQX-M-8. This site is in the watershed defined by the 8 digit Hydrologic Unit Code (HUC)03080201.

This site is located in St. Johns County County, Florida at 29.8112777670 degrees latitude and -81.2916666670 degrees longitude using the datum NAD83. The horizontal location collection method was "Interpolation-Photo" and the accuracy is Unknown seconds. The source map scale is 1:0.

To download the metadata about this site along with water quality data, go to the Portal Page and enter "21FLSJUD_WQX-M-8" 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, Phytoplankton 2023 - 2024
Inorganics, Major, Non-metals 2021 - 2024
Microbiological 2021 - 2024
Nutrient 2021 - 2024
Physical 2021 - 2025
*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 21FLSJUD_WQX
OrganizationFormalName ST. JOHNS COUNTY UTILITY DEPARTMENT
MonitoringLocationIdentifier 21FLSJUD_WQX-M-8
MonitoringLocationName INTERCOASTAL WATERWAY AT CM35
MonitoringLocationTypeName River/Stream
HUCEightDigitCode 03080201
LatitudeMeasure 29.8112777670
LongitudeMeasure -81.2916666670
SourceMapScaleNumeric 0
HorizontalAccuracyMeasure/MeasureValue Unknown
HorizontalAccuracyMeasure/MeasureUnitCode seconds
HorizontalCollectionMethodName Interpolation-Photo
HorizontalCoordinateReferenceSystemDatumName NAD83
CountryCode US
StateCode 12
CountyCode 109
ProviderName STORET