Silver (Hillsborough County)
Florida LAKEWATCH Water Chemistry Summary
Location: Latitude 28°1'24", Longitude 82°29'39"
Period of record: 26 sampling dates; November 30, 1996 to October 31, 1999
Surface area (Shafer et al. 1986): 17 acres / 7 hectacres
Lake Region (Griffith et al. 1997): Land-O-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Supplemental, unpublished water chemistry data, University of Florida.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 |
9.8 |
Sulfate (mg/L) |
15.3 |
|
Total alkalinity (mg/L as CaCO3) |
56.3 |
Calcium (mg/L) |
27.0 |
|
Conductance (µS/cm @ 25 °C) |
231 |
Magnesium (mg/L) |
1.9 |
|
Color (Pt-Co units) |
22 |
Sodium (mg/L) |
13.0 |
|
Chloride (mg/L) |
25.3 |
Potassium (mg/L) |
3.8 |
|
Silicon (mg/L) |
1.5 |
|
|
Long-term Florida LAKEWATCH Data
Numbers reported below are the minimum, average, and maximum value for the 26 months sampled:
|
|
Minimum |
Average |
Maximum |
|
Long-term total phosphorus concentrations (µg/L) |
26 |
43 |
117 |
|
Long-term total nitrogen concentrations (µg/L) |
660 |
1150 |
3450 |
|
Long-term total chlorophyll concentrations (µg/L) |
8.0 |
49.0 |
314.0 |
|
Long-term Secchi depth (ft) |
1.3 |
3.8 |
6.2 |
1999 Florida LAKEWATCH Data
Numbers reported below are monthly averages calculated from 3 stations for total phosphorus (TP, µg/L), total nitrogen (TN, µg/L), chlorophyll (CHL, µg/L) and Secchi depth (SECCHI, ft) during 1999:
|
Date |
TP (µg/L) |
TN (µg/L) |
CHL (µg/L) |
SECCHI (ft |
|
Jan-31-99 |
37 |
800 |
28.0 |
5.0 |
|
Feb-28-99 |
41 |
1310 |
41.7 |
3.0 |
|
Mar-28-99 |
32 |
930 |
20.3 |
3.0 |
|
Apr-25-99 |
33 |
660 |
8.0 |
6.0 |
|
May-31-99 |
28 |
690 |
16.0 |
6.2 |
|
Jul-15-99 |
35 |
860 |
23.0 |
4.0 |
|
Aug-15-99 |
26 |
850 |
22.0 |
4.3 |
|
Sep-28-99 |
34 |
790 |
25.0 |
4.2 |
|
Oct-31-99 |
30 |
910 |
27.3 |
3.4 |
|
|
|
|
|
|
|
1999 Average |
33 |
870 |
23.5 |
4.3 |