Seminole County Water Atlas


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Howell Creek Watershed

Howell Creek 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 2020 908 ug/l 340.0 ug/l 55 ug/l 0.03 mg/l 2 3
OCT-DEC 2019 991 ug/l 282.1 ug/l 45 ug/l 0.02 mg/l 13 19
JUL-SEP 2019 828 ug/l 145.4 ug/l 48 ug/l 0.02 mg/l 13 19
APR-JUN 2019 1,149 ug/l 282.1 ug/l 63 ug/l 0.03 mg/l 12 17
JAN-MAR 2019 743 ug/l 123.8 ug/l 45 ug/l 0.03 mg/l 15 25
OCT-DEC 2018 768 ug/l 100.5 ug/l 56 ug/l 0.04 mg/l 15 25
JUL-SEP 2018 746 ug/l 107.1 ug/l 64 ug/l 0.04 mg/l 14 25
APR-JUN 2018 1,084 ug/l 144.6 ug/l 71 ug/l 0.04 mg/l 14 20
JAN-MAR 2018 765 ug/l 174.5 ug/l 58 ug/l 0.04 mg/l 15 22
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, Orange County Surface Water Quality, 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
JAN-MAR 2020 3,184 ug/l 99.1 ug/l 30 ug/l 0.01 mg/l 11 12
OCT-DEC 2019 880 ug/l 133.3 ug/l 31 ug/l 0.01 mg/l 11 11
JUL-SEP 2019 830 ug/l 61.2 ug/l 16 ug/l 0.01 mg/l 11 12
APR-JUN 2019 839 ug/l 68.1 ug/l 22 ug/l 0.01 mg/l 13 18
JAN-MAR 2019 558 ug/l 16.5 ug/l 21 ug/l 0.01 mg/l 12 15
OCT-DEC 2018 725 ug/l 40.2 ug/l 23 ug/l 0.01 mg/l 14 16
JUL-SEP 2018 717 ug/l 5.9 ug/l 68 ug/l 0.01 mg/l 12 15
APR-JUN 2018 820 ug/l 8.5 ug/l 27 ug/l 0.01 mg/l 12 14
JAN-MAR 2018 802 ug/l 44.8 ug/l 24 ug/l 0.01 mg/l 14 17
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, FDEP - Central Regional Operations Center, FDEP Watershed Monitoring Section

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    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
    down Average water levels are lower than they have been historically.

    Source(s): Orange County, Orange County, Orange County, Seminole County Government, St. Johns River Water Management District, St Johns River Water Management District, USGS National Water Information System, City of Winter Park

    Source(s): Not Available
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