Pinellas County Water Atlas


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Lower Tampa Bay Watershed

Lower 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 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 2023 766 ug/l No Data Available 69 ug/l No Data Available 4 8
APR-JUN 2023 551 ug/l No Data Available 108 ug/l No Data Available 4 8
JAN-MAR 2023 825 ug/l No Data Available 86 ug/l No Data Available 4 4
OCT-DEC 2022 1,025 ug/l No Data Available 104 ug/l No Data Available 7 14
JUL-SEP 2022 1,103 ug/l No Data Available 109 ug/l No Data Available 7 13
APR-JUN 2022 1,003 ug/l No Data Available 179 ug/l No Data Available 7 15
JAN-MAR 2022 731 ug/l No Data Available 111 ug/l No Data Available 4 8
Five Year Seasonal Graph No Data Available No Data Available
Five Year Graph of All Samples No Data Available

Source(s): Legacy Pinellas Water Quality Data, PINELLAS Water Quality Data, FDEP Watershed Monitoring Section, FDEP Southwest Regional Operations Center, USGS National Water Information System, City of St. Petersburg, Florida LAKEWATCH

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 2022 1,284 ug/l No Data Available 68 ug/l No Data Available 3 6
JUL-SEP 2022 1,478 ug/l No Data Available 55 ug/l No Data Available 3 6
APR-JUN 2022 1,444 ug/l No Data Available 44 ug/l No Data Available 3 3
Five Year Seasonal Graph No Data Available No Data Available
Five Year Graph of All Samples No Data Available No Data Available

Source(s): LAKEWATCH Volunteer Water Quality Monitoring, FDEP Watershed Monitoring Section, SWFWMD Water Quality Sampling Data, SWFWMD Water Quality Monitoring Program Data, USGS National Water Information System, City of St. Petersburg

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    Groundwater Quantity: Aquifer Resource Indicator

    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 Lower Tampa Bay Watershed. Learn More about Stream Flow »

      River Flows Whole River Range Flows Data by Segment Levels Whole River Range Levels Data By Segment
      NO DATA

      Source(s): Not Available

      Source(s): Not Available
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