Seminole County Water Atlas


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Howell Creek

Howell Creek

Howell Creek

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located within the following watersheds: Lake Jesup 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 water environments.

The data on this page are designed to give you a picture of the total health of this waterbody. Click the "Learn More" text to learn more about each parameter shown and how it indicates Water Quality.

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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 Index

Water Quality Index (WQI) is an average of 5 different parameters giving a river a good (0-45), fair (45-60), or poor (60+) rating. Learn more about the Water Quality Index »

 

Whole River Range

Data by River Segment

0 - 46
- Fair
Oct-Dec 2019

WQI Data Table and Graph

 

Nutrient Chemistry

Although present in all surface waters, nutrients are among the leading causes of degradation of Florida water resources. Learn more about nutrient chemistry »

Parameter Latest Value Historic Range Additional Information
Total Nitrogen (TN) 1,000.0 ug/l
9/26/2019 12:35:00 PM
Source: Seminole County Water Quality Data
4.0 - 16,400.0 ug/L
8/11/1965 - 9/26/2019
1,349 samples
Total Phosphorus (TP) 65.0 ug/L
9/26/2019 12:35:00 PM
Source: Seminole County Water Quality Data
0.0 - 21,780.0 ug/L
6/24/1966 - 9/26/2019
1,924 samples
Chlorophyll a,
uncorrected for
pheophytin help icon
4.2 ug/L
8/22/2019 9:50:00 AM
Source: FDEP - Central Regional Operations Center
0.0 - 1,600.0 ug/L
2/9/1970 - 8/22/2019
407 samples
Chlorophyll a,
corrected for
pheophytin help icon
2.5 ug/L
9/26/2019 12:35:00 PM
Source: Seminole County Water Quality Data
0.0 - 120.0 ug/L
3/15/1983 - 9/26/2019
572 samples

    Water Clarity

    Water clarity or turbidity measures the degree to which light is blocked because the water is cloudy or contains suspended particles, such as algae. Water clarity is one indicator of a waterbody's ability to sustain plants and wildlife. Learn more about water clarity »

     

    Whole River Range

    Data by River Segment

    As of 10/3/1988:

    up Average turbidity is higher than it has been historically.

    Clarity Data Table and Graph

     

      Bacteria

      The currently used bacterial indicators for recreational waters include total coliform, fecal coliform and enterococcus. Indicator organisms themselves are not necessarily pathogenic but their presence "indicates" or suggests recent contamination by human sewage or other waste which may result in human illness. Sources of contamination include storm water runoff, sewage overflows and feces from wild and domestic animals. Learn more about bacteria »

      Parameter Latest Value Historic Range Additional Information
      Fecal Coliform 782 CFU/100ml
      7/30/2015
      Source: Orange County Surface Water Quality
      0 - 6,000 CFU/100ml
      6/21/1972 - 7/30/2015
      415 samples
      Total Coliform 2,300 CFU/100ml
      3/28/2007
      Source: Orange County Surface Water Quality
      0 - 19,000 CFU/100ml
      9/13/1966 - 3/28/2007
      161 samples
      Enterococcus NO DATA NO DATA NO DATA
      E. coli 100 CFU/100ml
      8/22/2019 9:50:00 AM
      Source: FDEP - Central Regional Operations Center
      17 - 291 CFU/100ml
      11/7/2017 - 8/22/2019
      6 samples

        Dissolved Oxygen

        Dissolved Oxygen (DO) is one of the most important indicators of water quality. It is essential for the survival of fish and other aquatic organisms. Learn more about dissolved oxygen »

        Parameter Latest Value Historic Range Additional Information
        Dissolved Oxygen 6.2 mg/l
        10/28/2019
        Source: Seminole County Water Quality Data
        0.1 - 166.0 mg/l
        8/11/1965 - 10/28/2019
        1,555 samples

          Salinity

          Salinity measures the amount of salts dissolved in water. An estuary can exhibit a change in salinity throughout its length as fresh water entering from the tributaries mixes with seawater from the ocean. Learn more about salinity »
          Parameter Latest Value Historic Range Additional Information
          Salinity 0.1 ppt
          8/22/2019 9:50:00 AM
          Source: FDEP - Central Regional Operations Center
          0.1 - 0.2 ppt
          7/20/2016 - 8/22/2019
          41 samples

          Impaired Waters

          The Impaired Waters Data is the most recent available data from FDEP, but it may not reflect the current FDEP impaired list. These data are updated when and as soon as they are made available from FDEP.

          This waterbody is impaired according to the State of Florida's Impaired Waters Rule (IWR) Chapter 62-303 F.A.C. that governs the Total Maximum Daily Loads (TMDL) Program or according to the U.S. Environmental Protection Agency (EPA). Identification of Impaired Surface Waters (IWR) is a new scientific approach for guiding Florida Department of Environmental Protection process for identifying and prioritizing impaired surface waters in Florida. The rule evaluates whether waters meet their designated uses for a particular analyte, which include aquatic life use support, primary contact and recreation use support, fish and shellfish consumption use support, and drinking water use support. All water resources in this county are designated as Class III waters. Class III waters are considered recreational use waters, which means that the water should be fishable and swimmable. Class II waters are for shellfish propagation and harvesting. Class I waters are considered potable (drinkable) water supplies. As part of the terms of a court order related to the 1998 303(d) list of impaired waters, some waters are listed as impaired by EPA but not listed by the State of Florida. Learn more about impaired waters »

          Pollutants

          This waterbody has been associated with the following WBIDs deemed impaired by the Florida Department of Environmental Protection:

          WBID Basin Impairment(s)
          2997 HOWELL CREEK BELOW LAKE HOWELL FECAL COLIFORM
          2997A HOWELL CREEK FECAL COLIFORM

          Source(s): Florida Department of Environmental Protection


          This waterbody has been associated with the following WBIDs deemed impaired by the Environmental Protection Agency's 303(d) list:

          WBID Basin Impairment(s) EPA Details
          2997 HOWELL CREEK BELOW LAKE HOWELL FECAL COLIFORM View additional EPA information »
          2997A HOWELL CREEK DISSOLVED OXYGEN, FECAL COLIFORM View additional EPA information »

          Source(s): US Environmental Protection Agency

           

           

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