Glass (Hillsborough County)
Florida LAKEWATCH Water Chemistry Summary
Location: Latitude 28°5'50", Longitude 82°37'8"
Period of record: 20 sampling dates; November 4, 1996 to July 17, 1998
Surface area (Shafer et al. 1986): 18 acres / 7 hectacres
Lake Region (Griffith et al. 1997): Keystone Lakes
Geologic formation (Brooks 1981):
The geology is dominated by argillaceous to sandy impure limestone of the Tampa Formation.
Physiographic region (Brooks 1981):
The water body lies in the Land-O-Lakes subdivision of the Tampa Plain division of the Ocala Uplift District.
Supplemental, unpublished water chemistry data, University of Florida.
Numbers reported below are the average for 1 month sampled:
|
pH |
4.6 |
Sulfate (mg/L) |
7.3 |
|
Total alkalinity (mg/L as CaCO3) |
0.0 |
Calcium (mg/L) |
1.7 |
|
Conductance (µS/cm @ 25 °C) |
79 |
Magnesium (mg/L) |
1.1 |
|
Color (Pt-Co units) |
10 |
Sodium (mg/L) |
8.5 |
|
Chloride (mg/L) |
15.8 |
Potassium (mg/L) |
0.9 |
|
Silicon (mg/L) |
0.1 |
|
|
Long-term Florida LAKEWATCH Data
Numbers reported below are the minimum, average, and maximum value for the 20 months sampled:
|
|
Minimum |
Average |
Maximum |
|
Long-term total phosphorus concentrations (µg/L) |
4 |
8 |
11 |
|
Long-term total nitrogen concentrations (µg/L) |
190 |
370 |
580 |
|
Long-term total chlorophyll concentrations (µg/L) |
1.0 |
2.7 |
6.0 |
|
Long-term Secchi depth (ft) |
5.3 |
8.5 |
11.3 |
Florida LAKEWATCH data were not collected in 1999.