Seminole County Water Atlas


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Saint Johns Watershed

Saint Johns Watershed

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Description

Explore general as well as scientific information about the movement, chemistry and biology of area surface and ground water environments.

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Map Legend

Water Quality sampling site
Hydrology sampling site
Closest Rainfall site
Rainfall sampling site
Multi-type sampling site
Other sampling site
 

Water Quality

The following data are summarized as seasonal average values for lake and river sampling locations located within the watershed. While these data are useful to serve as a general picture of watershed health, these data must be viewed with caution because these samples have been taken from ecologically different water resources.

Rivers:
Samples from most rivers located in this watershed are averaged as part of these data summaries.
Season Total Nitrogen Nitrate (NO3) Total Phosphorus Orthophosphate Number of Sample Stations Number of Samples
JUL-SEP 2020 1,387 ug/l No Data Available 88 ug/l No Data Available 1 3
APR-JUN 2020 1,258 ug/l No Data Available 83 ug/l No Data Available 3 5
JAN-MAR 2020 1,356 ug/l No Data Available 70 ug/l No Data Available 3 7
OCT-DEC 2019 1,466 ug/l No Data Available 83 ug/l No Data Available 4 10
JUL-SEP 2019 1,537 ug/l No Data Available 117 ug/l No Data Available 3 9
APR-JUN 2019 1,036 ug/l No Data Available 52 ug/l No Data Available 4 10
JAN-MAR 2019 1,013 ug/l No Data Available 47 ug/l No Data Available 4 10
Five Year Seasonal Graph No Data Available No Data Available
Five Year Graph of All Samples No Data Available No Data Available

Source(s): FDEP Historic Data from Legacy STORET, Seminole County Legacy Storet Data, Volusia County Water Quality Data, SJRWMD Water Quality Data, FDEP Central Regional Operations Center, FDEP Watershed Monitoring Section, SJRWMD Water Quality Sampling Data, FDEP - Central Regional Operations Center, FDEP Watershed Monitoring Section, St. Johns River Water Management District

Lakes:
Samples from most lakes located in this watershed are averaged as part of these data summaries.
Season Total Nitrogen Nitrate (NO3) Total Phosphorus Orthophosphate Number of Sample Stations Number of Samples
No Data Available
Five Year Seasonal Graph No Data Available No Data Available No Data Available No Data Available
Five Year Graph of All Samples No Data Available No Data Available No Data Available No Data Available

Source(s): LAKEWATCH Volunteer Water Quality Monitoring, Seminole County Legacy Storet Data, Seminole County Water Quality Data, Florida LAKEWATCH

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    Stream Flow and Levels

    Stream level and flow data for the Saint Johns Watershed. Learn More about Stream Flow »

    River Flows Whole River Range Flows Data by Segment Levels Whole River Range Levels Data By Segment
    Saint Johns River In the past 30 days
    down Average river flow is slower than it has been historically.
    In the past 30 days
    down Average water levels are lower than they have been historically.

    Source(s): Orange County, Orange County, Orange County, Seminole County Government, St. Johns River Water Management District, USGS National Water Information System, City of Winter Park

    Source(s): Not Available
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