Rainbow (Hillsborough County)
Florida LAKEWATCH Water Chemistry Summary
Location: Latitude 28°6'56", Longitude 82°35'38"
Period of record: 53 sampling dates; June 2, 1991 to December 24, 1999
Surface area (Shafer et al. 1986): 47 acres / 19 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.
Long-term Florida LAKEWATCH Data
Numbers reported below are the minimum, average, and maximum value for the 53 months sampled:
|
|
Minimum |
Average |
Maximum |
|
Long-term total phosphorus concentrations (µg/L) |
5 |
11 |
30 |
|
Long-term total nitrogen concentrations (µg/L) |
170 |
450 |
890 |
|
Long-term total chlorophyll concentrations (µg/L) |
0.5 |
4.0 |
20.0 |
|
Long-term Secchi depth (ft) |
4.6 |
7.9 |
11.5 |
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-09-99 |
15 |
710 |
5.7 |
8.2 |
|
Feb-14-99 |
19 |
780 |
5.3 |
9.3 |
|
Mar-21-99 |
20 |
660 |
5.0 |
8.8 |
|
Apr-30-99 |
21 |
690 |
9.7 |
7.0 |
|
May-23-99 |
19 |
720 |
5.3 |
7.1 |
|
Jun-27-99 |
18 |
770 |
7.0 |
7.3 |
|
Jul-25-99 |
11 |
650 |
6.0 |
7.9 |
|
Aug-29-99 |
15 |
760 |
7.0 |
8.4 |
|
Sep-18-99 |
19 |
780 |
12.0 |
6.7 |
|
Oct-30-99 |
20 |
800 |
10.3 |
7.1 |
|
Nov-29-99 |
18 |
770 |
7.3 |
8.2 |
|
Dec-24-99 |
30 |
890 |
5.7 |
7.5 |
|
|
|
|
|
|
|
1999 Average |
19 |
750 |
7.2 |
7.8 |