Commiston (Hillsborough County)
Florida LAKEWATCH Water Chemistry Summary
Location: Latitude 28°8'51", Longitude 82°27'17"
Period of record: 26 sampling dates; November 11, 1997 to December 11, 1999
Surface area : No data available.
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Supplemental, unpublished water chemistry data, University of Florida.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 |
6.4 |
Sulfate (mg/L) |
14.0 |
|
Total alkalinity (mg/L as CaCO3) |
4.8 |
Calcium (mg/L) |
5.7 |
|
Conductance (µS/cm @ 25 °C) |
129 |
Magnesium (mg/L) |
2.5 |
|
Color (Pt-Co units) |
72 |
Sodium (mg/L) |
13.0 |
|
Chloride (mg/L) |
29.0 |
Potassium (mg/L) |
2.9 |
|
Silicon (mg/L) |
0.5 |
|
|
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) |
12 |
24 |
35 |
|
Long-term total nitrogen concentrations (µg/L) |
730 |
860 |
1050 |
|
Long-term total chlorophyll concentrations (µg/L) |
2.3 |
13.3 |
66.0 |
|
Long-term Secchi depth (ft) |
3.8 |
5.9 |
7.3 |
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-12-99 |
18 |
780 |
7.0 |
5.3 |
|
Feb-13-99 |
21 |
900 |
12.0 |
6.7 |
|
Mar-12-99 |
19 |
850 |
9.7 |
6.4 |
|
Apr-11-99 |
17 |
780 |
5.0 |
5.9 |
|
May-16-99 |
12 |
800 |
2.3 |
6.7 |
|
Jun-10-99 |
19 |
760 |
10.0 |
6.3 |
|
Jul-07-99 |
22 |
740 |
5.0 |
5.8 |
|
Aug-14-99 |
21 |
730 |
8.0 |
5.9 |
|
Sep-13-99 |
21 |
880 |
11.3 |
4.2 |
|
Oct-09-99 |
23 |
940 |
16.7 |
5.3 |
|
Nov-07-99 |
18 |
1000 |
9.0 |
6.9 |
|
Dec-11-99 |
25 |
920 |
8.3 |
4.7 |
|
|
|
|
|
|
|
1999 Average |
20 |
840 |
8.7 |
5.8 |