Crystal (Hillsborough County)
Florida LAKEWATCH Water Chemistry Summary
Location: Latitude 28°8'1", Longitude 82°28'36"
Period of record: 21 sampling dates; January 28, 1998 to December 29, 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Supplemental, unpublished water chemistry data, University of Florida.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 |
7.0 |
Sulfate (mg/L) |
25.0 |
|
Total alkalinity (mg/L as CaCO3) |
12.0 |
Calcium (mg/L) |
13.0 |
|
Conductance (µS/cm @ 25 °C) |
177 |
Magnesium (mg/L) |
3.0 |
|
Color (Pt-Co units) |
47 |
Sodium (mg/L) |
12.0 |
|
Chloride (mg/L) |
27.0 |
Potassium (mg/L) |
4.0 |
|
Silicon (mg/L) |
0.4 |
|
|
Long-term Florida LAKEWATCH Data
Numbers reported below are the minimum, average, and maximum value for the 21 months sampled:
|
|
Minimum |
Average |
Maximum |
|
Long-term total phosphorus concentrations (µg/L) |
12 |
18 |
27 |
|
Long-term total nitrogen concentrations (µg/L) |
730 |
860 |
1090 |
|
Long-term total chlorophyll concentrations (µg/L) |
3.3 |
7.3 |
13.3 |
|
Long-term Secchi depth (ft) |
4.0 |
6.6 |
8.2 |
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-28-99 |
20 |
880 |
9.3 |
6.3 |
|
Feb-27-99 |
20 |
900 |
5.3 |
7.8 |
|
Mar-30-99 |
21 |
850 |
4.7 |
8.2 |
|
Apr-28-99 |
18 |
810 |
4.0 |
6.5 |
|
May-24-99 |
16 |
910 |
4.3 |
7.5 |
|
Jun-30-99 |
15 |
820 |
5.7 |
6.8 |
|
Jul-31-99 |
12 |
840 |
5.7 |
8.0 |
|
Aug-31-99 |
16 |
870 |
10.7 |
7.7 |
|
Sep-30-99 |
14 |
930 |
11.3 |
6.3 |
|
Oct-30-99 |
17 |
920 |
. |
. |
|
Nov-30-99 |
19 |
810 |
6.0 |
6.3 |
|
Dec-29-99 |
15 |
1090 |
9.3 |
6.3 |
|
|
|
|
|
|
|
1999 Average |
17 |
890 |
6.9 |
7.1 |