Valrico (Hillsborough County)
Florida LAKEWATCH Water Chemistry Summary
Location: Latitude 27°57'18", Longitude 82°15'30"
Period of record: 9 sampling dates; December 7, 1998 to December 5, 1999
Surface area (Shafer et al. 1986): 127 acres / 51 hectacres
Lake Region (Griffith et al. 1997): Hillsborough Valley
Geologic formation (Brooks 1981):
The geology is dominated by dolomites, dolomitic clay and phosphorite sand and gravel of the Hawthorne Formation.
Physiographic region (Brooks 1981):
The water body lies in the Hillsborough Valley division of the Ocala Uplift District.
Long-term Florida LAKEWATCH Data
Numbers reported below are the minimum, average, and maximum value for the 9 months sampled:
|
|
Minimum |
Average |
Maximum |
|
Long-term total phosphorus concentrations (µg/L) |
41 |
67 |
116 |
|
Long-term total nitrogen concentrations (µg/L) |
540 |
750 |
910 |
|
Long-term total chlorophyll concentrations (µg/L) |
2.0 |
15.1 |
38.7 |
|
Long-term Secchi depth (ft) |
4.7 |
6.5 |
8.3 |
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-17-99 |
80 |
540 |
8.7 |
8.3 |
|
Feb-10-99 |
116 |
750 |
9.3 |
8.0 |
|
Mar-14-99 |
65 |
630 |
4.3 |
7.3 |
|
Aug-04-99 |
41 |
660 |
10.3 |
6.3 |
|
Sep-06-99 |
47 |
880 |
28.0 |
5.2 |
|
Oct-09-99 |
48 |
910 |
23.3 |
4.7 |
|
Nov-06-99 |
50 |
870 |
38.7 |
5.0 |
|
Dec-05-99 |
55 |
850 |
2.0 |
5.0
|
|
|
|
|
|
|
|
1999 Average |
63 |
760 |
15.6 |
6.2 |