Hopkins Prairie (Marion County)
Florida LAKEWATCH Water Chemistry Summary
Location: Latitude 29°16'39", Longitude 81°42'29"
Period of record: 12 sampling dates; January 31, 1990 to December 31, 1990
Surface area (Shafer et al. 1986): 116 acres / 47 hectacres
Lake Region (Griffith et al. 1997): Ocala Scrub
Geologic formation (Brooks 1981):
The geology is dominated by sand dunes and well sorted fine sand of the Pleistocene.
Physiographic region (Brooks 1981):
The water body lies in the Ocala Scrub division of the Central Lake District.
Supplemental, unpublished water chemistry data, University of Florida.
Numbers reported below are the average for 1 month sampled:
|
pH |
4.7 |
Sulfate (mg/L) |
3.3 |
|
Total alkalinity (mg/L as CaCO3) |
1.8 |
Calcium (mg/L) |
1.4 |
|
Conductance (µS/cm @ 25 °C) |
45 |
Magnesium (mg/L) |
0.9 |
|
Color (Pt-Co units) |
160 |
Sodium (mg/L) |
4.2 |
|
Chloride (mg/L) |
8.8 |
Potassium (mg/L) |
0.2 |
Long-term Florida LAKEWATCH Data
Numbers reported below are the minimum, average, and maximum value for the 12 months sampled:
|
|
Minimum |
Average |
Maximum |
|
Long-term total phosphorus concentrations (µg/L) |
5 |
8 |
10 |
|
Long-term total nitrogen concentrations (µg/L) |
720 |
1020 |
1270 |
|
Long-term total chlorophyll concentrations (µg/L) |
1.7 |
3.0 |
5.0 |
|
Long-term Secchi depth (ft) |
. |
. |
. |
Florida LAKEWATCH data were not collected in 1999.