Hillsborough County Water Atlas


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Lower Hillsborough River Watershed

Lower Hillsborough River 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 2022 626 ug/l No Data Available 113 ug/l 0.08 mg/l 8 8
APR-JUN 2022 485 ug/l No Data Available 103 ug/l 0.12 mg/l 8 24
JAN-MAR 2022 332 ug/l No Data Available 85 ug/l 0.11 mg/l 8 24
OCT-DEC 2021 641 ug/l No Data Available 135 ug/l 0.1 mg/l 8 24
JUL-SEP 2021 819 ug/l No Data Available 225 ug/l 0.14 mg/l 8 24
APR-JUN 2021 428 ug/l No Data Available 214 ug/l 0.12 mg/l 9 26
JAN-MAR 2021 402 ug/l No Data Available 129 ug/l 0.1 mg/l 9 27
OCT-DEC 2020 550 ug/l No Data Available 260 ug/l 0.19 mg/l 8 24
JUL-SEP 2020 483 ug/l No Data Available 207 ug/l 0.16 mg/l 8 24
APR-JUN 2020 406 ug/l No Data Available 226 ug/l 0.08 mg/l 8 8
JAN-MAR 2020 574 ug/l No Data Available 337 ug/l 0.08 mg/l 8 16
Five Year Seasonal Graph No Data Available
Five Year Graph of All Samples No Data Available

Source(s): Quarterly Routine Water Monitoring, EPC Monthly Routine Water Monitoring, EPC Water Quality Data, EPC Water Quality data gathered from reports, LAKEWATCH Volunteer Water Quality Monitoring, FDEP Historic Data from Legacy STORET, FDEP Watershed Monitoring Section, Tampa Bay Water, FDEP Southwest Regional Operations Center, Stream Waterwatch Water Quality Data, Volunteer , USGS National Water Information System, FDEP Watershed Monitoring Section, Environmental Protection Commission of Hillsborough County, Southwest Florida Water Management District, 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
JUL-SEP 2022 1,328 ug/l No Data Available 98 ug/l 0.02 mg/l 1 1
APR-JUN 2022 988 ug/l No Data Available 77 ug/l 0.04 mg/l 1 3
JAN-MAR 2022 1,642 ug/l No Data Available 176 ug/l 0.1 mg/l 1 3
OCT-DEC 2021 1,163 ug/l No Data Available 132 ug/l 0.04 mg/l 1 3
JUL-SEP 2021 594 ug/l No Data Available 116 ug/l 0.04 mg/l 1 3
APR-JUN 2021 2,094 ug/l No Data Available 248 ug/l 0.04 mg/l 1 3
JAN-MAR 2021 870 ug/l No Data Available 116 ug/l 0.02 mg/l 1 3
OCT-DEC 2020 716 ug/l No Data Available 132 ug/l 0.02 mg/l 1 3
JUL-SEP 2020 653 ug/l No Data Available 117 ug/l 0.06 mg/l 1 3
APR-JUN 2020 300 ug/l No Data Available 129 ug/l 0.02 mg/l 1 1
JAN-MAR 2020 624 ug/l No Data Available 116 ug/l 0.01 mg/l 1 2
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 Watershed Monitoring Section, SWFWMD Water Quality Sampling Data (Ken Romie), SWFWMD Water Quality Monitoring Program Data, USGS National Water Information System, Environmental Protection Commission of Hillsborough County

  • Water Quality Sampling Locations - View a map showing the point locations of water quality monitoring stations which collect data being presented on the Water Atlas.
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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 Hillsborough River Watershed. Learn More about Stream Flow »

    River Flows Whole River Range Flows Data by Segment Levels Whole River Range Levels Data By Segment
    Hillsborough River 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): Not Available

    Source(s): Not Available
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