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Tampa Bay Water Atlas


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Hillsborough Bay Watershed

Hillsborough 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
JAN-MAR 2020 818 ug/l No Data Available 258 ug/l No Data Available 4 4
OCT-DEC 2019 1,674 ug/l No Data Available 559 ug/l 0.46 mg/l 14 20
JUL-SEP 2019 1,768 ug/l No Data Available 470 ug/l 0.25 mg/l 7 17
APR-JUN 2019 1,244 ug/l No Data Available 418 ug/l 0.33 mg/l 65 75
JAN-MAR 2019 1,048 ug/l 349.4 ug/l 455 ug/l 0.32 mg/l 92 200
OCT-DEC 2018 1,165 ug/l 462.2 ug/l 478 ug/l 0.34 mg/l 88 184
JUL-SEP 2018 1,039 ug/l No Data Available 555 ug/l 0.47 mg/l 76 160
APR-JUN 2018 965 ug/l 292.0 ug/l 527 ug/l 0.42 mg/l 83 178
JAN-MAR 2018 1,046 ug/l 466.7 ug/l 402 ug/l 0.33 mg/l 81 170
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, Hillsborough County Water Quality, LAKEWATCH Volunteer Water Quality Monitoring, FDEP Historic Data from Legacy STORET, Biological Research Associates , FDEP Watershed Monitoring Section, IMC Agrico (Florida), SWFWMD Water Quality Sampling Data, Tampa Bay Water, FDEP Southwest Regional Operations Center, FDEP, Water Quality Standards and Special Projects (Florida), Stream Waterwatch Water Quality Data, Volunteer , USGS National Water Information System, FDEP Watershed Monitoring Section, Pasco County Stormwater Management Division, Southwest Florida Water Management District, Tampa Bay Water, FDEP - Southwest Regional Operations Center

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
JAN-MAR 2020 1,367 ug/l No Data Available 88 ug/l No Data Available 3 3
OCT-DEC 2019 1,461 ug/l No Data Available 106 ug/l 0 mg/l 5 7
JUL-SEP 2019 1,252 ug/l No Data Available 82 ug/l 0 mg/l 9 9
APR-JUN 2019 1,514 ug/l No Data Available 122 ug/l 0.04 mg/l 19 19
JAN-MAR 2019 1,000 ug/l No Data Available 166 ug/l 0.08 mg/l 10 15
OCT-DEC 2018 1,111 ug/l No Data Available 89 ug/l 0.05 mg/l 32 56
OCT-DEC 2018 1,634 ug/l No Data Available 86 ug/l No Data Available 2 5
JUL-SEP 2018 1,192 ug/l No Data Available 77 ug/l No Data Available 2 5
JUL-SEP 2018 815 ug/l No Data Available 141 ug/l 0.19 mg/l 25 58
APR-JUN 2018 1,020 ug/l No Data Available 233 ug/l 0.26 mg/l 24 56
APR-JUN 2018 1,196 ug/l No Data Available 78 ug/l No Data Available 2 5
JAN-MAR 2018 818 ug/l No Data Available 65 ug/l No Data Available 2 4
JAN-MAR 2018 901 ug/l No Data Available 92 ug/l 0.16 mg/l 21 47
Five Year Seasonal Graph No Data Available
Five Year Graph of All Samples No Data Available

Source(s): EPC Monthly Routine Water Monitoring, Hillsborough County Lake Assessments, EPC Water Quality Data, EPC Water Quality data gathered from reports, Hillsborough County Water Quality, Water quality data collected by the City of Lakeland, LAKEWATCH Supplemental Water Quality Sampling, LAKEWATCH Volunteer Water Quality Monitoring, FDEP Historic Data from Legacy STORET, Florida Fish and Wildlife Conservation Commission Water Quality Data, FDEP Watershed Monitoring Section, SWFWMD Water Quality Sampling Data, FDEP Southwest Regional Operations Center, 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, FDEP Watershed Monitoring Section, FDEP - Southwest Regional Operations Center

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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 Hillsborough Bay Watershed. Learn More about Stream Flow »

      River Flows Whole River Range Flows Data by Segment Levels Whole River Range Levels Data By Segment
      Alafia River In the past 30 days
      down Average river flow is slower than it has been historically.
      In the past 30 days
      up Average water levels are higher than they have been historically.
      Alafia River - North Prong In the past 30 days
      down Average river flow is slower than it has been historically.
      In the past 30 days
      up Average water levels are higher than they have been historically.
      Alafia River - South Prong In the past 30 days
      down Average river flow is slower than it has been historically.
      In the past 30 days
      up Average water levels are higher than they have been historically.
      Archie Creek In the past 30 days
      up Average river flow is faster than it has been historically.
      In the past 30 days
      up Average water levels are higher than they have been historically.
      Baker Creek 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.
      Blackwater Creek In the past 30 days
      down Average river flow is slower than it has been historically.
      In the past 30 days
      up Average water levels are higher than they have been historically.
      Bullfrog Creek In the past 30 days
      up Average river flow is faster than it has been historically.
      In the past 30 days
      up Average water levels are higher than they have been historically.
      Delaney Creek In the past 30 days
      up Average river flow is faster than it has been historically.
      In the past 30 days
      up Average water levels are higher than they have been historically.
      Delaney Creek Popoff Canal In the past 30 days
      same Average river flow is the same as it has been historically.
      In the past 30 days
      same Average water levels are the same as they have been historically.
      Hillsborough River In the past 30 days
      down Average river flow is slower than it has been historically.
      In the past 30 days
      up Average water levels are higher than they have been historically.
      Thirtymile Creek 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.
      Trout Creek In the past 30 days
      up Average river flow is faster than it has been historically.
      In the past 30 days
      up Average water levels are higher than they have been historically.
      Bellows Lake Outlet In the past 30 days
      same Average river flow is the same as it has been historically.
      In the past 30 days
      up Average water levels are higher than they have been historically.
      Cypress Creek In the past 30 days
      down Average river flow is slower than it has been historically.
      In the past 30 days
      up Average water levels are higher than they have been historically.
      Curiosity Creek In the past 30 days
      up Average river flow is faster than it has been historically.
      In the past 30 days
      down Average water levels are lower than they have been historically.
      North Archie Creek In the past 30 days
      same Average river flow is the same as it has been historically.
      In the past 30 days
      down Average water levels are lower than they have been historically.
      Fivemile Creek 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.
      Fox Branch In the past 30 days
      up Average river flow is faster than it has been historically.
      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, Sarasota County , Hillsborough County Stream Waterwatch, Southwest Florida Water Management District, Southwest Florida Water Management District, USGS National Water Information System, Southwest Florida Water Management District

      Source(s): Not Available
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