Seminole County Water Atlas

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St. Johns River

St. Johns River

St. Johns River


located within the following watersheds: Yankee Lake Watershed, Lake Monroe (L-S Canal) Watershed, Sanford Watershed, Midway Watershed, Lake Jesup Watershed, Saint Johns Watershed, Lake Harney Watershed, Puzzle Lake Watershed, Big Econlockhatchee Watershed

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

The data on this page indicate how fast the water is moving and how deep the water is on this water resource.

Click the Learn More links to explore each parameter and how it indicates Hydrology.

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Water Quality Sampling Sites
Hydrology Sampling Sites
Other Sampling Sites

Water Levels

Water levels typically follow rainfall patterns during periods of wet weather and drought. From these data, one can get a picture of how recent flood or drought events compare to historical data. Learn more about river water levels »

Water Levels NAVD88
Latest Value 0.82 ft. 1/29/2018 Source: SEMCO_PWHYDRO
Historic Norm for Month 2.22 ft. 1921 - 2018
Historic Range -1.0 - 10.9 ft. 1/1/1921 - 1/29/2018 432 samples
FEMA Levels No Data
Graphs and Data View 10-Year Graph Download Data
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Stream Flow and Levels

Stream level and flow data for St. Johns River. Learn More about Stream Flow »

Stream Flow and Levels
River Flows Whole River Range Flows Data by Segment Levels Whole River Range Levels Data By Segment
St. Johns River In the past 30 days
Recent river flow data is unavailable.
    No data table or graph available
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, St Johns River Water Mgmt. District, USGS National Water Information System

Source(s): Not Available
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    Advanced Data Features

    Files Graphs

    Data Download and Advanced Graphing Tool
    Download and/or graph water quality, hydrology, and rainfall trends using the data presented on the Atlas for use in your own analyses and reports.

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