Lillian (Highlands County)

Florida LAKEWATCH Water Chemistry Summary

Location: Latitude 27°37'50", Longitude 81°31'21"

Period of record: 65 sampling dates; April 25, 1994 to December 17, 1999

Surface area (LAKEWATCH): 32 acres / 13 hectacres     Bathymetric Map

Lake Region (Griffith et al. 1997): Southern Lake Wales Ridge

Geologic formation (Brooks 1981):

The geology is dominated by deeply weathered beach and dune sand with some clay lenses of the preglacial Pleistocene.

Physiographic region (Brooks 1981):

The water body lies in the Eastern Complex of the Central Ridge subdivision of the Lake Wales Ridge division of the Central Lake District.

Supplemental, unpublished water chemistry data, University of Florida.

Numbers reported below are the average for 1 month sampled:
 
pH
7.3
 Sulfate (mg/L)
24.3
Total alkalinity (mg/L as CaCO3)
21.0
 Calcium (mg/L)
10.7
Conductance (µS/cm @ 25 °C)
150
 Magnesium (mg/L)
3.8
Color (Pt-Co units)
6
 Sodium (mg/L)
6.1
Chloride (mg/L)
12.3
 Potassium (mg/L)
1.4
Silicon (mg/L)
0.8
    

Long-term Florida LAKEWATCH Data

Numbers reported below are the minimum, average, and maximum value for the 65 months sampled:

 
Minimum
Average
Maximum
Long-term total phosphorus concentrations (µg/L)
6
11
41
Long-term total nitrogen concentrations (µg/L)
310
610
1060
Long-term total chlorophyll concentrations (µg/L)
2.7
8.6
46.3
Long-term Secchi depth (ft)
2.8
8.6
15.5

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-29-99
16
870
15.3
4.5
Feb-26-99
15
890
9.0
8.1
Mar-26-99
13
710
11.3
4.7
Apr-23-99
9
660
5.7
8.3
May-19-99
9
590
6.0
9.1
Jun-29-99
9
590
7.0
6.4
Jul-29-99
7
560
5.7
10.5
Aug-27-99
6
350
8.0
7.9
Sep-24-99
9
510
7.0
11.3
Oct-29-99
13
800
11.7
7.8
Nov-19-99
13
990
13.7
7.6
Dec-17-99
14
1060
7.3
10.3
         
1999 Average
11
710
9.0
8.1

Lillian (Highlands County)

Florida LAKEWATCH Aquatic Plant Summary

Aquatic plant data collected on July 24, 1996

Percent area covered with aquatic vegetation (PAC, %)
10
Percent of lake's volume filled with vegetation (PVI, %)
1
Average emergent plant biomass (kg wet wt/m2)
3.3
Average floating-leaved plant biomass (kg wet wt/m2)
0.1
Average submersed plant biomass (kg wet wt/m2)
1.5
Average width of emergent and floating-leaved zone (ft.)
51
Average lake depth (m)
7

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

Common Name Plant Species
Frequency (%)
torpedograss Panicum repens
100
water primrose Ludwigia octovalvis
60
rush fuirena Fuirena scirpoidea
60
water-pennywort Hydrocotyle umbellata
50
slender spikerush Eleocharis baldwinii
30
dwarf arrowhead Sagittaria subulata
20
cone-spur bladderwort Utricularia gibba
20
willow Salix spp.
20
maidencane Panicum hemitomon
20
water spinach Ipomoea aquatica
10
red ludwigia Ludwigia repens
10
hydrilla Hydrilla verticillata
10
salt-bush Baccharis spp.
10
wax myrtle Myrica cerifera
10
soft stem bulrush Scirpus validus
10
musk-grass Chara spp.
10
green algae Chlorphyta
10
respuinata bladderwort Utricularia resupinata
10

Back to L lakes page