C (Orange County)
Florida LAKEWATCH Water Chemistry Summary
Location: Latitude 28°31'52", Longitude 81°19'10"
Period of record: 72 sampling dates; November 18, 1990 to December 14, 1999
Surface area : No data available.
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Supplemental, unpublished water chemistry data, University of Florida.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 2 months sampled:
|
pH |
7.0 |
Sulfate (mg/L) |
24.0 |
|
Total alkalinity (mg/L as CaCO3) |
45.0 |
Calcium (mg/L) |
22.5 |
|
Conductance (µS/cm @ 25 °C) |
215 |
Magnesium (mg/L) |
3.5 |
|
Color (Pt-Co units) |
28 |
Sodium (mg/L) |
8.5 |
|
Chloride (mg/L) |
17.2 |
Potassium (mg/L) |
5.0 |
|
Silicon (mg/L) |
3.0 |
|
|
Long-term Florida LAKEWATCH Data
Numbers reported below are the minimum, average, and maximum value for the 72 months sampled:
|
|
Minimum |
Average |
Maximum |
|
Long-term total phosphorus concentrations (µg/L) |
23 |
51 |
154 |
|
Long-term total nitrogen concentrations (µg/L) |
460 |
790 |
1530 |
|
Long-term total chlorophyll concentrations (µg/L) |
1.0 |
67.1 |
759.0 |
|
Long-term Secchi depth (ft) |
2.0 |
3.5 |
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-20-99 |
43 |
510 |
17.3 |
4.7 |
|
Feb-25-99 |
46 |
760 |
19.7 |
4.3 |
|
Mar-21-99 |
59 |
780 |
27.0 |
3.8 |
|
Apr-19-99 |
90 |
1000 |
52.0 |
3.0 |
|
May-16-99 |
65 |
840 |
44.0 |
3.5 |
|
Jun-28-99 |
154 |
1530 |
759.0 |
2.2 |
|
Jul-22-99 |
45 |
690 |
47.7 |
3.0 |
|
Aug-16-99 |
61 |
790 |
65.7 |
3.0 |
|
Sep-22-99 |
72 |
1120 |
89.3 |
3.3 |
|
Oct-22-99 |
54 |
960 |
83.7 |
3.0 |
|
Nov-23-99 |
48 |
700 |
68.3 |
3.2 |
|
Dec-14-99 |
42 |
690 |
56.0 |
3.0 |
|
|
|
|
|
|
|
1999 Average |
65 |
860 |
110.8 |
3.3 |