Hillsborough County Water Atlas


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Little Manatee River Watershed

Little Manatee 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
JAN-MAR 2022 817 ug/l No Data Available 298 ug/l 0.35 mg/l 19 38
OCT-DEC 2021 925 ug/l No Data Available 352 ug/l 0.3 mg/l 20 38
JUL-SEP 2021 1,151 ug/l No Data Available 434 ug/l 0.36 mg/l 20 38
APR-JUN 2021 1,121 ug/l No Data Available 363 ug/l 0.28 mg/l 21 33
JAN-MAR 2021 1,073 ug/l No Data Available 320 ug/l 0.28 mg/l 19 39
OCT-DEC 2020 1,088 ug/l No Data Available 333 ug/l 0.28 mg/l 18 30
JUL-SEP 2020 999 ug/l No Data Available 481 ug/l 0.38 mg/l 20 35
APR-JUN 2020 959 ug/l No Data Available 495 ug/l 0.45 mg/l 18 24
JAN-MAR 2020 754 ug/l No Data Available 262 ug/l 0.17 mg/l 10 25
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, Hillsborough County Lake Assessments, EPC Water Quality Data, EPC Water Quality data gathered from reports, Hillsborough County Environmental Management Division, LAKEWATCH Volunteer Water Quality Monitoring, FDEP Historic Data from Legacy STORET, FDEP Watershed Monitoring Section, IMC Agrico (Florida), Manatee County Environmental Management Sampling Data, SWFWMD Water Quality Sampling Data, 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, Hillsborough County Environmental Services Division, Environmental Protection Commission of Hillsborough County, Manatee County Environmental Management Sampling Data, 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
No Data Available
Five Year Seasonal Graph No Data Available No Data Available No Data Available No Data Available
Five Year Graph of All Samples No Data Available 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, FDEP Watershed Monitoring Section, SWFWMD Water Quality Sampling Data, SWFWMD Water Quality Sampling Data (Ken Romie), SWFWMD Water Quality Monitoring Program Data, Florida LAKEWATCH

  • 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 Little Manatee River Watershed. Learn More about Stream Flow »

    River Flows Whole River Range Flows Data by Segment Levels Whole River Range Levels Data By Segment
    Little Manatee River In the past 30 days
    down Average river flow is slower than it has been historically.
    In the past 30 days
    NO DATA
    Recent water level data is unavailable.
      No data table or graph available
    Little Manatee River - South Fork In the past 30 days
    down Average river flow is slower than it has been historically.
    In the past 30 days
    NO DATA
    Recent water level data is unavailable.
      No data table or graph available
    Gamble Creek In the past 30 days
    down Average river flow is slower than it has been historically.
    In the past 30 days
    NO DATA
    Recent water level data is unavailable.
      No data table or graph available

    Source(s): Not Available

    Source(s): Not Available
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