Silver (Polk County)
Florida LAKEWATCH Water Chemistry Summary
Location: Latitude 28°1'53", Longitude 81°43'41"
Period of record: 31 sampling dates; August 9, 1991 to December 20, 1999
Surface area (Shafer et al. 1986): 52 acres / 21 hectacres
Lake Region (Griffith et al. 1997): Winter Haven/Lake Henry Ridges
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 Winter Haven Karst division of the Central Lake District.
Long-term Florida LAKEWATCH Data
Numbers reported below are the minimum, average, and maximum value for the 31 months sampled:
|
|
Minimum |
Average |
Maximum |
|
Long-term total phosphorus concentrations (µg/L) |
11 |
23 |
82 |
|
Long-term total nitrogen concentrations (µg/L) |
420 |
740 |
1940 |
|
Long-term total chlorophyll concentrations (µg/L) |
6.0 |
20.6 |
117.3 |
|
Long-term Secchi depth (ft) |
2.3 |
4.9 |
12.7 |
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-18-99 |
21 |
750 |
16.3 |
4.0 |
|
Feb-14-99 |
21 |
690 |
20.7 |
3.2 |
|
Mar-21-99 |
22 |
640 |
14.0 |
3.5 |
|
Apr-17-99 |
19 |
560 |
12.3 |
3.7 |
|
May-16-99 |
21 |
790 |
15.0 |
2.6 |
|
Jun-13-99 |
19 |
930 |
11.3 |
3.3 |
|
Jul-18-99 |
14 |
680 |
7.0 |
5.0 |
|
Aug-21-99 |
19 |
710 |
18.3 |
3.5 |
|
Oct-17-99 |
20 |
730 |
22.0 |
3.5 |
|
Nov-14-99 |
21 |
980 |
34.3 |
2.3 |
|
Dec-20-99 |
23 |
940 |
17.3 |
3.8 |
|
|
|
|
|
|
|
1999 Average |
20 |
760 |
17.2 |
3.5 |