Elbert (Polk County)
Florida LAKEWATCH Water Chemistry Summary
Location: Latitude 28°1'35", Longitude 81°42'33"
Period of record: 16 sampling dates; September 2, 1991 to July 19, 1994
Surface area (Shafer et al. 1986): 173 acres / 70 hectacres
Lake Region (Griffith et al. 1997): Winter Haven/Lake Henry Ridges
Geologic formation (Brooks 1981):
The geology is dominated by deeply weathered clayey sand and granular sand of the Hawthorne Formation.
Physiographic region (Brooks 1981):
The water body lies in the Winter Haven Karst 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Supplemental, unpublished water chemistry data, University of Florida.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 |
7.9 |
Sulfate (mg/L) |
23.3 |
|
Total alkalinity (mg/L as CaCO3) |
33.0 |
Conductance (µS/cm @ 25 °C) |
182 |
|
Color (Pt-Co units) |
9 |
Chloride (mg/L) |
15.0 |
Long-term Florida LAKEWATCH Data
Numbers reported below are the minimum, average, and maximum value for the 16 months sampled:
|
|
Minimum |
Average |
Maximum |
|
Long-term total phosphorus concentrations (µg/L) |
11 |
17 |
24 |
|
Long-term total nitrogen concentrations (µg/L) |
440 |
550 |
710 |
|
Long-term total chlorophyll concentrations (µg/L) |
3.3 |
7.3 |
16.0 |
|
Long-term Secchi depth (ft) |
6.0 |
8.1 |
11.0 |
Florida LAKEWATCH data were not collected in 1999.
Elbert (Polk County)
Florida LAKEWATCH Aquatic Plant Summary
Aquatic plant data collected on May 18, 1993
|
Percent area covered with aquatic vegetation (PAC, %) |
62 |
|
Percent of lake's volume filled with vegetation (PVI, %) |
4 |
|
Average emergent plant biomass (kg wet wt/m2) |
6.8 |
|
Average floating-leaved plant biomass (kg wet wt/m2) |
2.7 |
|
Average submersed plant biomass (kg wet wt/m2) |
5.9 |
|
Average width of emergent and floating-leaved zone (ft.) |
94 |
|
Average lake depth (m) |
5 |
Frequency that plant species occur in 10 evenly spaced transects around the lake.
|
Common Name |
Plant Species |
Frequency (%) |
|
cat-tail |
Typha spp. |
90 |
|
torpedograss |
Panicum repens |
90 |
|
duck-potato |
Sagittaria lancifolia |
80 |
|
water-pennywort |
Hydrocotyle umbellata |
70 |
|
Illinois pondweed |
Potamogeton illinoensis |
70 |
|
tapegrass |
Vallisneria americana |
60 |
|
water primrose |
Ludwigia octovalvis |
60 |
|
spatterdock |
Nuphar luteum |
50 |
|
fragrant water-lily |
Nymphaea odorata |
50 |
|
willow |
Salix spp. |
40 |
|
giant bulrush |
Scirpus californicus |
30 |
|
pickerelweed |
Pontederia cordata |
20 |
|
southern naiad |
Najas guadalupensis |
20 |
|
rush fuirena |
Fuirena scirpoidea |
20 |
|
bald cypress |
Taxodium distichum |
20 |
|
. |
Nitella prolonga |
20 |
|
floating water-hyacinth |
Eichhornia crassipes |
10 |
|
common salvinia |
Salvinia rotundifolia |
10 |
|
smartweed |
Polygonum hydropiperoides |
10 |
|
baby-tears |
Micranthemum umbrosum |
10 |
|
hydrilla |
Hydrilla verticillata |
10 |
|
cone-spur bladderwort |
Utricularia gibba |
10 |
|
wax myrtle |
Myrica cerifera |
10 |
|
sawgrass |
Cladium jamaicense |
10 |
|
maidencane |
Panicum hemitomon |
10 |
|
musk-grass |
Chara spp. |
10 |
|
bladderwort |
Utricularia foliosa |
10 |
|
club-rush |
Eleocharis cellulosa |
10 |
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