Georges (Putnam County)
Florida LAKEWATCH Water Chemistry Summary
Location: Latitude 29°47'15", Longitude 81°51'2"
Period of record: 42 sampling dates; April 1, 1990 to September 17, 1994
Surface area (Shafer et al. 1986): 816 acres / 330 hectacres
Lake Region (Griffith et al. 1997): Trail Ridge
Geologic formation (Brooks 1981):
The geology is dominated by undifferentiated sand with humate zones and concentrations of heavy minerals of the Pliocene.
Physiographic region (Brooks 1981):
The water body lies in the Trail Ridge division of the Sea Island District.
Supplemental, unpublished water chemistry data, University of Florida.
Numbers reported below are the average for 2 months sampled:
|
pH |
4.6 |
Sulfate (mg/L) |
7.8 |
|
Total alkalinity (mg/L as CaCO3) |
0.0 |
Calcium (mg/L) |
2.0 |
|
Conductance (µS/cm @ 25 °C) |
57 |
Magnesium (mg/L) |
1.0 |
|
Color (Pt-Co units) |
7 |
Sodium (mg/L) |
5.0 |
|
Chloride (mg/L) |
9.8 |
Potassium (mg/L) |
0.2 |
|
Silicon (mg/L) |
0.4 |
|
|
Long-term Florida LAKEWATCH Data
Numbers reported below are the minimum, average, and maximum value for the 42 months sampled:
|
|
Minimum |
Average |
Maximum |
|
Long-term total phosphorus concentrations (µg/L) |
3 |
12 |
23 |
|
Long-term total nitrogen concentrations (µg/L) |
60 |
150 |
310 |
|
Long-term total chlorophyll concentrations (µg/L) |
1.0 |
3.1 |
8.3 |
|
Long-term Secchi depth (ft) |
3.0 |
5.5 |
10.7 |
Florida LAKEWATCH data were not collected in 1999.
Georges (Putnam County)
Florida LAKEWATCH Aquatic Plant Summary
Aquatic plant data collected on June 5, 1991
|
Percent area covered with aquatic vegetation (PAC, %) |
16 |
|
Percent of lake's volume filled with vegetation (PVI, %) |
3 |
|
Average emergent plant biomass (kg wet wt/m2) |
4.8 |
|
Average floating-leaved plant biomass (kg wet wt/m2) |
2.5 |
|
Average submersed plant biomass (kg wet wt/m2) |
1.9 |
|
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 (%) |
|
slender spikerush |
Eleocharis baldwinii |
100 |
|
maidencane |
Panicum hemitomon |
100 |
|
spatterdock |
Nuphar luteum |
90 |
|
water-moss |
Fontinalis spp. |
80 |
|
bladderwort |
Utricularia foliosa |
60 |
|
water-pennywort |
Hydrocotyle umbellata |
40 |
|
floating water-hyacinth |
Eichhornia crassipes |
20 |
|
common salvinia |
Salvinia rotundifolia |
20 |
|
water primrose |
Ludwigia octovalvis |
20 |
|
spider-lily |
Hymenocallis spp. |
20 |
|
duck-potato |
Sagittaria lancifolia |
10 |
|
alligator-weed |
Alternanthera philoxeroides |
10 |
|
frog's-bit |
Limnobium spongia |
10 |
|
pickerelweed |
Pontederia cordata |
10 |
|
cat-tail |
Typha spp. |
10 |
|
dwarf arrowhead |
Sagittaria subulata |
10 |
|
bog-moss |
Mayaca fluviatilis |
10 |
|
buttonbush |
Cephalanthus occidentalis |
10 |
|
willow |
Salix spp. |
10 |
|
sawgrass |
Cladium jamaicense |
10 |
|
rush fuirena |
Fuirena scirpoidea |
10 |
|
yellow-eyed grass |
Xyris spp. |
10 |