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Manatee River Watershed

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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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
OCT-DEC 2023 1,300 ug/l No Data Available 310 ug/l No Data Available 1 1
JUL-SEP 2023 951 ug/l No Data Available 353 ug/l No Data Available 24 53
APR-JUN 2023 1,017 ug/l No Data Available 296 ug/l No Data Available 24 62
JAN-MAR 2023 780 ug/l No Data Available 263 ug/l No Data Available 23 61
OCT-DEC 2022 953 ug/l No Data Available 286 ug/l No Data Available 29 67
JUL-SEP 2022 1,081 ug/l No Data Available 376 ug/l No Data Available 3 5
APR-JUN 2022 870 ug/l No Data Available 341 ug/l No Data Available 22 48
JAN-MAR 2022 741 ug/l No Data Available 261 ug/l No Data Available 20 54
Five Year Seasonal Graph
Five Year Graph of All Samples

Source(s): FDEP Historic Data from Legacy STORET, Lower watershed program (LWP), FDEP Watershed Monitoring Section, Manatee County Environmental Management Sampling Data, SWFWMD Water Quality Sampling Data, FDEP Southwest Regional Operations Center, FDEP, Water Quality Standards and Special Projects (Florida), USGS National Water Information System, FDEP Watershed Monitoring Section, Florida LAKEWATCH, Manatee County Environmental Management Sampling Data, Enviro-Audit, Southwest Florida Water Management District, FDEP - Southwest Regional Operations Center, FDEP - Watershed Assessment Section

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 2023 1,102 ug/l No Data Available 291 ug/l No Data Available 2 5
APR-JUN 2023 824 ug/l No Data Available 185 ug/l No Data Available 2 6
JAN-MAR 2023 1,021 ug/l No Data Available 173 ug/l No Data Available 2 6
OCT-DEC 2022 1,027 ug/l No Data Available 263 ug/l No Data Available 2 6
APR-JUN 2022 783 ug/l No Data Available 178 ug/l No Data Available 2 6
JAN-MAR 2022 792 ug/l No Data Available 180 ug/l No Data Available 2 6
Five Year Seasonal Graph
Five Year Graph of All Samples

Source(s): Lower watershed program (LWP), FDEP Watershed Monitoring Section, Manatee County Environmental Management Sampling Data, USGS National Water Information System, FDEP Watershed Monitoring Section, Florida LAKEWATCH, Manatee County Environmental Management Sampling Data, FDEP - Watershed Assessment Section

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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 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
      Gamble 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.
      Upper Manatee 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.
      Braden River 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): Not Available

      Source(s): Not Available
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