Jessamine (Orange County)
Florida LAKEWATCH Water Chemistry Summary
Location: Latitude 28°28'52", Longitude 81°23'10"
Period of record: 45 sampling dates; May 17, 1993 to September 18, 1999
Surface area (Shafer et al. 1986): 306 acres / 124 hectacres
Lake Region (Griffith et al. 1997): Orlando Ridge
Geologic formation (Brooks 1981):
The geology is dominated by phosphatic sand, silty sand, and clay of the Hawthorne Formation.
Physiographic region (Brooks 1981):
The water body lies in the Orlando Promontory division of the Central Lake District.
Supplemental, unpublished water chemistry data, University of Florida.
Numbers reported below are the average for 3 months sampled:
|
pH |
7.8 |
Sulfate (mg/L) |
17.8 |
|
Total alkalinity (mg/L as CaCO3) |
43.6 |
Calcium (mg/L) |
17.2 |
|
Conductance (µS/cm @ 25 °C) |
184 |
Magnesium (mg/L) |
21.7 |
|
Color (Pt-Co units) |
5 |
Sodium (mg/L) |
14.0 |
|
Chloride (mg/L) |
20.6 |
Potassium (mg/L) |
3.8 |
|
Silicon (mg/L) |
0.2 |
|
|
Long-term Florida LAKEWATCH Data
Numbers reported below are the minimum, average, and maximum value for the 45 months sampled:
|
|
Minimum |
Average |
Maximum |
|
Long-term total phosphorus concentrations (µg/L) |
13 |
18 |
25 |
|
Long-term total nitrogen concentrations (µg/L) |
570 |
880 |
1340 |
|
Long-term total chlorophyll concentrations (µg/L) |
4.3 |
19.5 |
37.0 |
|
Long-term Secchi depth (ft) |
1.6 |
4.1 |
8.7 |
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 |
|
Feb-18-99 |
15 |
570 |
10.0 |
5.0 |
|
Sep-18-99 |
17 |
1150 |
18.0 |
2.6 |
|
|
|
|
|
|
|
1999 Average |
16 |
860 |
14.0 |
3.8 |