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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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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 723 ug/l No Data Available 259 ug/l No Data Available 18 48
OCT-DEC 2021 1,056 ug/l No Data Available 317 ug/l No Data Available 21 50
JUL-SEP 2021 1,113 ug/l No Data Available 325 ug/l No Data Available 22 51
APR-JUN 2021 744 ug/l No Data Available 340 ug/l No Data Available 21 26
JAN-MAR 2021 789 ug/l No Data Available 242 ug/l No Data Available 22 61
OCT-DEC 2020 1,057 ug/l No Data Available 316 ug/l No Data Available 21 27
JUL-SEP 2020 1,039 ug/l No Data Available 260 ug/l No Data Available 25 47
APR-JUN 2020 883 ug/l No Data Available 275 ug/l No Data Available 26 62
JAN-MAR 2020 692 ug/l No Data Available 271 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
JAN-MAR 2022 792 ug/l No Data Available 180 ug/l No Data Available 2 6
OCT-DEC 2021 983 ug/l No Data Available 155 ug/l No Data Available 5 9
JUL-SEP 2021 1,058 ug/l No Data Available 226 ug/l No Data Available 5 8
APR-JUN 2021 1,002 ug/l No Data Available 176 ug/l No Data Available 5 5
JAN-MAR 2021 800 ug/l No Data Available 191 ug/l No Data Available 2 6
OCT-DEC 2020 1,036 ug/l No Data Available 234 ug/l No Data Available 4 5
JUL-SEP 2020 1,030 ug/l No Data Available 229 ug/l No Data Available 5 7
APR-JUN 2020 811 ug/l No Data Available 157 ug/l No Data Available 5 9
JAN-MAR 2020 808 ug/l No Data Available 207 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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