Pinellas County Water Atlas


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Narrows Watershed

Narrows 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 2023 955 ug/l No Data Available 175 ug/l No Data Available 2 4
APR-JUN 2023 648 ug/l No Data Available 298 ug/l No Data Available 2 4
JAN-MAR 2023 820 ug/l No Data Available 153 ug/l No Data Available 2 4
OCT-DEC 2022 887 ug/l No Data Available 87 ug/l No Data Available 4 8
JUL-SEP 2022 1,014 ug/l No Data Available 116 ug/l No Data Available 4 7
APR-JUN 2022 796 ug/l No Data Available 98 ug/l No Data Available 4 7
JAN-MAR 2022 1,233 ug/l No Data Available 197 ug/l No Data Available 5 5
Five Year Seasonal Graph No Data Available No Data Available
Five Year Graph of All Samples No Data Available No Data Available

Source(s): Legacy Pinellas Water Quality Data, PINELLAS Water Quality Data, FDEP Watershed Monitoring Section, FDEP Southwest Regional Operations Center, USGS National Water Information System, Pinellas County Department of Environmental Management, 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 2023 900 ug/l No Data Available 20 ug/l No Data Available 1 1
JAN-MAR 2023 530 ug/l No Data Available 10 ug/l No Data Available 1 1
OCT-DEC 2022 560 ug/l No Data Available 10 ug/l No Data Available 1 2
JUL-SEP 2022 630 ug/l No Data Available 20 ug/l No Data Available 1 2
APR-JUN 2022 645 ug/l No Data Available 20 ug/l No Data Available 1 2
JAN-MAR 2022 690 ug/l No Data Available 20 ug/l No Data Available 1 1
Five Year Seasonal Graph No Data Available No Data Available
Five Year Graph of All Samples No Data Available No Data Available

Source(s): LAKEWATCH Volunteer Water Quality Monitoring, Legacy Pinellas Water Quality Data, PINELLAS Water Quality Data, FDEP Watershed Monitoring Section, SWFWMD Water Quality Sampling Data, FDEP Southwest Regional Operations Center, SWFWMD Water Quality Monitoring Program Data, Pinellas County Department of Environmental Management

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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 Narrows Watershed. Learn More about Stream Flow »

      River Flows Whole River Range Flows Data by Segment Levels Whole River Range Levels Data By Segment
      Mckay 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.

      Source(s): Not Available

      Source(s): Not Available
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