Georgia (Orange County)
Florida LAKEWATCH Water Chemistry Summary
Location: Latitude 28°36'23", Longitude 81°14'47"
Period of record: 127 sampling dates; March 21, 1989 to December 12, 1999
Surface area (Shafer et al. 1986): 82 acres / 33 hectacres
Lake Region (Griffith et al. 1997): Orlando Ridge
Geologic formation (Brooks 1981):
The geology is dominated by coastal sand and shelly silty sand of the preglacial Pleistocene.
Physiographic region (Brooks 1981):
The water body lies in the Casselberry-Oviedo-Geneva-Chuluota Hills 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Supplemental, unpublished water chemistry data, University of Florida.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 |
6.3 |
Sulfate (mg/L) |
15.2 |
|
Total alkalinity (mg/L as CaCO3) |
2.3 |
Calcium (mg/L) |
4.5 |
|
Conductance (µS/cm @ 25 °C) |
191 |
Magnesium (mg/L) |
2.8 |
|
Color (Pt-Co units) |
15 |
Sodium (mg/L) |
25.7 |
|
Chloride (mg/L) |
43.0 |
Potassium (mg/L) |
1.0 |
|
Silicon (mg/L) |
0.2 |
|
|
Long-term Florida LAKEWATCH Data
Numbers reported below are the minimum, average, and maximum value for the 127 months sampled:
|
|
Minimum |
Average |
Maximum |
|
Long-term total phosphorus concentrations (µg/L) |
4 |
10 |
34 |
|
Long-term total nitrogen concentrations (µg/L) |
350 |
610 |
1230 |
|
Long-term total chlorophyll concentrations (µg/L) |
0.0 |
5.1 |
28.3 |
|
Long-term Secchi depth (ft) |
4.3 |
8.9 |
17.0 |
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-14-99 |
12 |
610 |
8.0 |
6.2 |
|
Feb-15-99 |
13 |
810 |
7.3 |
5.2 |
|
Mar-16-99 |
13 |
600 |
6.3 |
5.8 |
|
Apr-20-99 |
14 |
650 |
7.0 |
6.5 |
|
May-17-99 |
11 |
580 |
5.7 |
6.3 |
|
Jul-18-99 |
9 |
540 |
6.3 |
5.9 |
|
Aug-14-99 |
8 |
520 |
5.7 |
5.8 |
|
Sep-16-99 |
11 |
660 |
11.3 |
6.2 |
|
Oct-17-99 |
11 |
510 |
9.3 |
6.7 |
|
Nov-16-99 |
11 |
510 |
3.7 |
11.0 |
|
Dec-12-99 |
8 |
490 |
2.3 |
9.8 |
|
|
|
|
|
|
|
1999 Average |
11 |
590 |
6.6 |
6.9 |
Georgia (Orange County)
Florida LAKEWATCH Aquatic Plant Summary
Aquatic plant data collected on May 27, 1992
|
Percent area covered with aquatic vegetation (PAC, %) |
90 |
|
Percent of lake's volume filled with vegetation (PVI, %) |
33 |
|
Average emergent plant biomass (kg wet wt/m2) |
3.9 |
|
Average floating-leaved plant biomass (kg wet wt/m2) |
2.4 |
|
Average submersed plant biomass (kg wet wt/m2) |
4.9 |
|
Average width of emergent and floating-leaved zone (ft.) |
92 |
|
Average lake depth (m) |
3 |
Frequency that plant species occur in 10 evenly spaced transects around the lake.
|
Common Name |
Plant Species |
Frequency (%) |
|
fragrant water-lily |
Nymphaea odorata |
100 |
|
variable-leaf milfoil |
Myriophyllum heterophyllum |
100 |
|
rush fuirena |
Fuirena scirpoidea |
100 |
|
Florida bladderwort |
Utricularia floridana |
100 |
|
pickerelweed |
Pontederia cordata |
90 |
|
purple bladderwort |
Utricularia purpurea |
90 |
|
bladderwort |
Utricularia foliosa |
90 |
|
torpedograss |
Panicum repens |
80 |
|
slender spikerush |
Eleocharis baldwinii |
70 |
|
banana-lily |
Nymphoides aquatica |
60 |
|
maidencane |
Panicum hemitomon |
50 |
|
water-pennywort |
Hydrocotyle umbellata |
40 |
|
water primrose |
Ludwigia octovalvis |
30 |
|
spatterdock |
Nuphar luteum |
20 |
|
red ludwigia |
Ludwigia repens |
20 |
|
smartweed |
Polygonum hydropiperoides |
10 |