Olympia (Orange County)

Florida LAKEWATCH Water Chemistry Summary

Location: Latitude 28°34'7", Longitude 81°31'25"

Period of record: 75 sampling dates; July 28, 1992 to December 8, 1999

Surface area (LAKEWATCH): 153 acres / 62 hectacres     Bathymetric Map

Lake Region (Griffith et al. 1997): Apopka Upland

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 Apopka Hills subdivision of the Apopka Upland division of the Central Lake District.
 
 

Long-term Florida LAKEWATCH Data

Numbers reported below are the minimum, average, and maximum value for the 75 months sampled:

 
Minimum
Average
Maximum
Long-term total phosphorus concentrations (µg/L)
5
10
16
Long-term total nitrogen concentrations (µg/L)
420
620
950
Long-term total chlorophyll concentrations (µg/L)
1.0
5.7
22.0
Long-term Secchi depth (ft)
4.0
9.2
16.0

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
Mar-16-99
9
460
4.7
12.0
Apr-13-99
11
550
3.0
11.7
May-13-99
10
520
3.0
7.0
Jul-28-99
10
490
3.0
7.0
Aug-03-99
10
530
11.0
7.0
Nov-09-99
13
610
4.3
7.0
Dec-08-99
13
560
7.3
7.0
         
1999 Average
11
530
5.2
8.4

Olympia (Orange County)

Florida LAKEWATCH Aquatic Plant Summary

Aquatic plant data collected on May 18, 1994

Percent area covered with aquatic vegetation (PAC, %)
0
Percent of lake's volume filled with vegetation (PVI, %)
0
Average emergent plant biomass (kg wet wt/m2)
1.3
Average floating-leaved plant biomass (kg wet wt/m2)
0.1
Average submersed plant biomass (kg wet wt/m2)
3.0
Average width of emergent and floating-leaved zone (ft.)
26
Average lake depth (m)
3

Frequency that plant species occur in 10 evenly spaced transects around the lake.

Common Name Plant Species
Frequency (%)
respuinata bladderwort Utricularia resupinata
100
baby-tears Micranthemum umbrosum
70
torpedograss Panicum repens
60
rush fuirena Fuirena scirpoidea
60
maidencane Panicum hemitomon
40
musk-grass Chara spp.
30
cat-tail Typha spp.
20
spatterdock Nuphar luteum
10
water-pennywort Hydrocotyle umbellata
10
willow Salix spp.
10
St. John's wort Hypericum spp.
10

Olympia (Orange County)

Florida LAKEWATCH Aquatic Plant Summary

Aquatic plant data collected on June 17, 1999

Percent area covered with aquatic vegetation (PAC, %)
24
Percent of lake's volume filled with vegetation (PVI, %)
5
Average emergent plant biomass (kg wet wt/m2)
5.7
Average floating-leaved plant biomass (kg wet wt/m2)
3.1
Average submersed plant biomass (kg wet wt/m2)
1.5
Average width of emergent and floating-leaved zone (ft.)
94
Average lake depth (m)
4

Frequency that plant species occur in 10 evenly spaced transects around the lake.

Common Name Plant Species
Frequency (%)
torpedograss Panicum repens
90
rush fuirena Fuirena scirpoidea
80
fragrant water-lily Nymphaea odorata
70
baby-tears Micranthemum umbrosum
70
cone-spur bladderwort Utricularia gibba
60
water primrose Ludwigia octovalvis
60
spatterdock Nuphar luteum
50
musk-grass Chara spp.
50
cat-tail Typha spp.
40
willow Salix spp.
40
maidencane Panicum hemitomon
30
St. John's wort Hypericum spp.
20
red ludwigia Ludwigia repens
10
water-pennywort Hydrocotyle umbellata
10
bog-moss Mayaca fluviatilis
10
southern naiad Najas guadalupensis
10
wax myrtle Myrica cerifera
10
stonewort Nitella spp.
10
jointed flat sedge Cyperus haspan
10

Back to O lakes page