Woodward (Lake County)
Florida LAKEWATCH Water Chemistry Summary
Location: Latitude 28°49'22", Longitude 81°40'33"
Period of record: 37 sampling dates; December 8, 1989 to October 25, 1993
Surface area : 90 acres / 36 hectacres
Lake Region (Griffith et al. 1997): Mount Dora Ridge
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 Central Lakes 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Supplemental, unpublished water chemistry data, University of Florida.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 |
7.0 |
Sulfate (mg/L) |
31.0 |
|
Total alkalinity (mg/L as CaCO3) |
18.8 |
Calcium (mg/L) |
12.8 |
|
Conductance (µS/cm @ 25 °C) |
178 |
Magnesium (mg/L) |
4.2 |
|
Color (Pt-Co units) |
7 |
Sodium (mg/L) |
10.0 |
|
Chloride (mg/L) |
16.5 |
Potassium (mg/L) |
6.8 |
|
Silicon (mg/L) |
0.5 |
|
|
Long-term Florida LAKEWATCH Data
Numbers reported below are the minimum, average, and maximum value for the 37 months sampled:
|
|
Minimum |
Average |
Maximum |
|
Long-term total phosphorus concentrations (µg/L) |
3 |
10 |
15 |
|
Long-term total nitrogen concentrations (µg/L) |
350 |
500 |
810 |
|
Long-term total chlorophyll concentrations (µg/L) |
2.0 |
5.9 |
21.7 |
|
Long-term Secchi depth (ft) |
5.7 |
8.2 |
11.7 |
Florida LAKEWATCH data were not collected in 1999.
Woodward (Lake County)
Florida LAKEWATCH Aquatic Plant Summary
Aquatic plant data collected on June 2, 1992
|
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) |
4.2 |
|
Average floating-leaved plant biomass (kg wet wt/m2) |
0.8 |
|
Average submersed plant biomass (kg wet wt/m2) |
0.2 |
|
Average width of emergent and floating-leaved zone (ft.) |
24 |
|
Average lake depth (m) |
6 |
Frequency that plant species occur in 10 evenly spaced transects around the lake.
|
Common Name |
Plant Species |
Frequency (%) |
|
cat-tail |
Typha spp. |
60 |
|
maidencane |
Panicum hemitomon |
60 |
|
water primrose |
Ludwigia octovalvis |
50 |
|
willow |
Salix spp. |
50 |
|
red ludwigia |
Ludwigia repens |
40 |
|
buttonbush |
Cephalanthus occidentalis |
40 |
|
duck-potato |
Sagittaria lancifolia |
30 |
|
spatterdock |
Nuphar luteum |
30 |
|
torpedograss |
Panicum repens |
30 |
|
rush fuirena |
Fuirena scirpoidea |
30 |
|
slender spikerush |
Eleocharis baldwinii |
20 |
|
fragrant water-lily |
Nymphaea odorata |
20 |
|
pickerelweed |
Pontederia cordata |
20 |
|
red root |
Lachnanthes caroliniana |
20 |
|
water-pennywort |
Hydrocotyle umbellata |
10 |
|
cone-spur bladderwort |
Utricularia gibba |
10 |
|
sawgrass |
Cladium jamaicense |
10 |
|
flat-sedge |
Cyperus odoratus |
10 |
|
soft rush |
Juncus effusus |
10 |
|
musk-grass |
Chara spp. |
10 |
|
pipewort |
Eriocaulon spp. |
10 |
|
jointed flat sedge |
Cyperus haspan |
10 |