Gleason (Volusia County)
Florida LAKEWATCH Water Chemistry Summary
Location: Latitude 28°53'37", Longitude 81°15'57"
Period of record: 5 sampling dates; August 11, 1991 to July 19, 1992
Surface area (Shafer et al. 1986): 91 acres / 37 hectacres
Lake Region (Griffith et al. 1997): Crescent City/DeLand Ridges
Geologic formation (Brooks 1981):
The geology is a mixture of two major types dominated by dune sand and shell with silty sand, silt, and clay of the Princess Ann Formation and coastal sand and shelly silty sand of the preglacial Pleistocene.
Physiographic region (Brooks 1981):
The water body lies in the St. John’s Offset and Crescent City-Deland Ridge divisions of the Central Lake District.
Supplemental, unpublished water chemistry data, University of Florida.
Numbers reported below are the average for 1 month sampled:
|
pH |
7.2 |
Sulfate (mg/L) |
3.8 |
|
Total alkalinity (mg/L as CaCO3) |
38.3 |
Calcium (mg/L) |
16.3 |
|
Conductance (µS/cm @ 25 °C) |
157 |
Magnesium (mg/L) |
1.7 |
|
Color (Pt-Co units) |
33 |
Sodium (mg/L) |
9.9 |
|
Chloride (mg/L) |
22.7 |
Potassium (mg/L) |
2.4 |
|
Silicon (mg/L) |
0.1 |
|
|
Long-term Florida LAKEWATCH Data
Numbers reported below are the minimum, average, and maximum value for the 5 months sampled:
|
|
Minimum |
Average |
Maximum |
|
Long-term total phosphorus concentrations (µg/L) |
7 |
10 |
13 |
|
Long-term total nitrogen concentrations (µg/L) |
850 |
890 |
920 |
|
Long-term total chlorophyll concentrations (µg/L) |
2.3 |
3.4 |
4.3 |
|
Long-term Secchi depth (ft) |
. |
. |
. |
Florida LAKEWATCH data were not collected in 1999.