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Tampa Bay Water Atlas


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Middle Tampa Bay Watershed

Middle Tampa Bay 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 Sites
Hydrology Sampling Sites
Other Sampling Sites
 

Water Quality

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
OCT-DEC 2017 913 ug/l No Data Available 314 ug/l 0.25 mg/l 13 19
JUL-SEP 2017 1,278 ug/l No Data Available 412 ug/l 0.34 mg/l 22 42
APR-JUN 2017 1,034 ug/l No Data Available 294 ug/l 0.17 mg/l 23 46
JAN-MAR 2017 880 ug/l No Data Available 279 ug/l 0.19 mg/l 19 41
OCT-DEC 2016 1,219 ug/l No Data Available 274 ug/l 0.22 mg/l 24 49
JUL-SEP 2016 1,176 ug/l No Data Available 370 ug/l 0.28 mg/l 23 42
APR-JUN 2016 1,108 ug/l No Data Available 342 ug/l 0.28 mg/l 25 47
JAN-MAR 2016 1,087 ug/l No Data Available 286 ug/l 0.22 mg/l 23 48
Five Year Seasonal Graph
Five Year Graph of All Samples

Source(s): Quarterly Routine Water Monitoring, EPC Monthly Routine Water Monitoring, Hillsborough County Lake Assessments, EPC Water Quality Data, EPC Water Quality data gathered from reports, LAKEWATCH Volunteer Water Quality Monitoring, Legacy Pinellas Water Quality Data, FDEP Historic Data from Legacy STORET, PINELLAS Water Quality Data, City of St. Petersburg, FDEP Ambient Monitoring Sampling Data, IMC Agrico (Florida), Florida LAKEWATCH, Manatee County Environmental Management Sampling Data, SWFWMD Water Quality Sampling Data (STORET), FDEP Southwest District Sampling Data, FDEP, Water Quality Standards and Special Projects (Florida), Stream Waterwatch Water Quality Data, Volunteer , USGS National Water Information System

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
OCT-DEC 2017 1,540 ug/l No Data Available 97 ug/l 0.01 mg/l 5 5
JUL-SEP 2017 1,474 ug/l No Data Available 65 ug/l 0.01 mg/l 5 5
APR-JUN 2017 1,216 ug/l No Data Available 59 ug/l 0.01 mg/l 5 10
JAN-MAR 2017 822 ug/l No Data Available 60 ug/l 0.01 mg/l 5 5
OCT-DEC 2016 959 ug/l No Data Available 89 ug/l 0.01 mg/l 7 14
JUL-SEP 2016 647 ug/l No Data Available 46 ug/l 0.01 mg/l 6 7
APR-JUN 2016 687 ug/l No Data Available 72 ug/l 0.01 mg/l 6 11
JAN-MAR 2016 632 ug/l No Data Available 102 ug/l 0.01 mg/l 6 11
Five Year Seasonal Graph No Data Available
Five Year Graph of All Samples No Data Available

Source(s): EPC Water Quality data gathered from reports, LAKEWATCH Supplemental Water Quality Sampling, LAKEWATCH Volunteer Water Quality Monitoring, FDEP Historic Data from Legacy STORET, PINELLAS Water Quality Data, City of St. Petersburg, FDEP Ambient Monitoring Sampling Data, SWFWMD Water Quality Sampling Data (STORET), FDEP Southwest District Sampling Data, FDEP, Water Quality Standards and Special Projects (Florida), SWFWMD Water Quality Sampling Data (Ken Romie), SWFWMD Water Quality Monitoring Program Data, USGS National Water Information System

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    Groundwater Quantity: Aquifer Resource Indicator

    Groundwater Quantity

    Southwest Florida Water Management District calculates the Aquifer Resource Indicator (ARI) for their three groundwater regions each month. The ARI was created to provide the public with a gauge of groundwater levels in their area, so they can develop an understanding of the severity and cycles of drought and recovery. The three regions include: North (Citrus, Hernando, Lake, Levy, Marion, and Sumter counties), Central (Hillsborough, Pasco, Pinellas, and Polk counties), and South (Charlotte, DeSoto, Hardee, Highlands, Manatee, and Sarasota counties). Learn More about the Aquifer Resource Indicator >>

    To determine the ARI for a region, each well is compared weekly to its respective low-normal value and the difference is calculated. The weekly differences are reduced to a monthly value for all monitoring wells within a region, and the resulting ARI value represents how far water levels in the aquifer must rise or fall to reach their respective low-normal values.

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    Source: SWFWMD Hydrologic Data Section Data


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      Stream Flow and Levels

      Stream level and flow data for the Middle Tampa Bay Watershed. 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
      Sawgrass Lake East Outfall Canal In the past 30 days
      NO DATA
      Recent river flow data is unavailable.
        No data table or graph available
      In the past 30 days
      up Average water levels are higher than they have been historically.

      Source(s): Hillsborough County Environmental Protection Commission, Manatee County Department of Environmental Management, Hillsborough County Stream Waterwatch, Southwest Florida Water Management District, Southwest Florida Water Management 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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