Umatilla (Lake County)
Florida LAKEWATCH Water Chemistry Summary
Location: Latitude 28°55'14", Longitude 81°39'57"
Period of record: 6 sampling dates; July 6, 1995 to May 18, 1996
Surface area (Shafer et al. 1986): 161 acres / 65 hectacres
Lake Region (Griffith et al. 1997): Apopka Upland
Geologic formation (Brooks 1981):
The geology is dominated by deeply weathered clayey sand and granular sand of the Hawthorne Formation.
Physiographic region (Brooks 1981):
The water body lies in the Central Lakes 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Supplemental, unpublished water chemistry data, University of Florida.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 |
7.6 |
Sulfate (mg/L) |
26.7 |
|
Total alkalinity (mg/L as CaCO3) |
43.0 |
Calcium (mg/L) |
17.0 |
|
Conductance (µS/cm @ 25 °C) |
231 |
Magnesium (mg/L) |
7.8 |
|
Color (Pt-Co units) |
21 |
Sodium (mg/L) |
10.0 |
|
Chloride (mg/L) |
23.3 |
Potassium (mg/L) |
6.9 |
|
Silicon (mg/L) |
0.7 |
|
|
Long-term Florida LAKEWATCH Data
Numbers reported below are the minimum, average, and maximum value for the 6 months sampled:
|
|
Minimum |
Average |
Maximum |
|
Long-term total phosphorus concentrations (µg/L) |
18 |
28 |
37 |
|
Long-term total nitrogen concentrations (µg/L) |
620 |
970 |
1190 |
|
Long-term total chlorophyll concentrations (µg/L) |
5.0 |
24.3 |
53.3 |
|
Long-term Secchi depth (ft) |
2.0 |
3.7 |
5.7 |
Florida LAKEWATCH data were not collected in 1999.