Seminole County Water Atlas


Home Explore Howell Creek Watershed

Howell Creek Watershed

Howell Creek Watershed

Map

Description

Explore general as well as scientific information about the movement, chemistry and biology of area surface and ground water environments.

Loading interactive map...

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
APR-JUN 2022 858 ug/l No Data Available 58 ug/l 0.01 mg/l 3 7
JAN-MAR 2022 783 ug/l 100.0 ug/l 53 ug/l 0.03 mg/l 5 9
OCT-DEC 2021 870 ug/l 164.2 ug/l 57 ug/l 0.03 mg/l 14 22
JUL-SEP 2021 912 ug/l 109.6 ug/l 74 ug/l 0.03 mg/l 14 23
APR-JUN 2021 822 ug/l 218.3 ug/l 94 ug/l 0.04 mg/l 13 19
JAN-MAR 2021 736 ug/l 150.2 ug/l 53 ug/l 0.03 mg/l 14 22
OCT-DEC 2020 750 ug/l 177.1 ug/l 60 ug/l 0.03 mg/l 14 22
JUL-SEP 2020 823 ug/l 86.4 ug/l 63 ug/l 0.03 mg/l 14 24
APR-JUN 2020 959 ug/l 223.1 ug/l 82 ug/l 0.04 mg/l 13 27
JAN-MAR 2020 880 ug/l 261.3 ug/l 72 ug/l 0.02 mg/l 5 9
Five Year Seasonal Graph
Five Year Graph of All Samples

Source(s): FDEP Historic Data from Legacy STORET, Seminole County Legacy Storet Data, Legacy Orange County Surface Water Quality, Seminole County Water Quality Data, SJRWMD Water Quality Data, FDEP Central Regional Operations Center, FDEP Watershed Monitoring Section, Orange County Surface Water Quality, FDEP, Water Quality Standards and Special Projects (Florida), USGS National Water Information System, FDEP - Central Regional Operations Center, FDEP Watershed Monitoring Section, Orange County Environmental Protection Division, St. Johns River Water Management District

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
APR-JUN 2022 977 ug/l No Data Available 45 ug/l No Data Available 5 5
JAN-MAR 2022 752 ug/l 81.9 ug/l 27 ug/l 0.02 mg/l 13 16
OCT-DEC 2021 716 ug/l 37.4 ug/l 20 ug/l 0 mg/l 13 15
JUL-SEP 2021 754 ug/l 25.0 ug/l 56 ug/l 0 mg/l 13 17
APR-JUN 2021 944 ug/l 29.1 ug/l 30 ug/l 0 mg/l 15 18
JAN-MAR 2021 780 ug/l 49.0 ug/l 32 ug/l 0 mg/l 16 19
OCT-DEC 2020 666 ug/l 36.6 ug/l 31 ug/l 0 mg/l 16 16
JUL-SEP 2020 746 ug/l 22.3 ug/l 35 ug/l 0.01 mg/l 16 20
APR-JUN 2020 717 ug/l 23.6 ug/l 24 ug/l 0.01 mg/l 12 12
JAN-MAR 2020 867 ug/l 99.1 ug/l 33 ug/l 0.01 mg/l 15 22
Five Year Seasonal Graph
Five Year Graph of All Samples

Source(s): LAKEWATCH Supplemental Water Quality Sampling, LAKEWATCH Volunteer Water Quality Monitoring, FDEP Historic Data from Legacy STORET, Seminole County Legacy Storet Data, Legacy Orange County Surface Water Quality, Seminole County Water Quality Data, SJRWMD Water Quality Data, FDEP Central Regional Operations Center, FDEP Watershed Monitoring Section, Orange County Surface Water Quality, FDEP, Water Quality Standards and Special Projects (Florida), USGS National Water Information System, City of Casselberry, FDEP - Central Regional Operations Center, FDEP Watershed Monitoring Section, Florida LAKEWATCH

    Return to Top

    Stream Flow and Levels

    Stream level and flow data for the Howell Creek Watershed. Learn More about Stream Flow »

    River Flows Whole River Range Flows Data by Segment Levels Whole River Range Levels Data By Segment
    Howell Creek 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
      Return to Top
       

      Advanced Data Features

       

       
      Mapping
      Analysis
      Learn
      Participate
      An Edition of wateratlas.org
      Connect With Us

      The USF Water Institute is committed to ensuring that our websites conform with Accessibility Support guidelines for people who need to use assistive technologies. We are continually improving the user experience for everyone, and applying the relevant accessibility standards. View our Accessibility Statement for more information.