Redwater (Putnam County)
Florida LAKEWATCH Water Chemistry Summary
Location: Latitude 29°33'50", Longitude 82°1'4"
Period of record: 98 sampling dates; April 12, 1990 to December 20, 1998
Surface area (LAKEWATCH): 284 acres / 115 hectacres
Lake Region (Griffith et al. 1997): Central Valley
Geologic formation (Brooks 1981):
The geology is a mixture of two major types dominated by deeply weathered clayey sand and granular sand and quartz sand and quartzite gravel with sandy clay beds of the Hawthorne Formation.
Physiographic region (Brooks 1981):
The water body lies in the St. JohnÕs Offset division of the Central Lake District.
Supplemental, unpublished water chemistry data, University of Florida.
Numbers reported below are the average for 3 months sampled:
|
pH |
6.2 |
Sulfate (mg/L) |
4.0 |
|
Total alkalinity (mg/L as CaCO3) |
3.4 |
Calcium (mg/L) |
3.0 |
|
Conductance (µS/cm @ 25 °C) |
64 |
Magnesium (mg/L) |
1.0 |
|
Color (Pt-Co units) |
64 |
Sodium (mg/L) |
6.2 |
|
Chloride (mg/L) |
13.0 |
Potassium (mg/L) |
2.0 |
|
Silicon (mg/L) |
0.3 |
|
|
Long-term Florida LAKEWATCH Data
Numbers reported below are the minimum, average, and maximum value for the 98 months sampled:
|
|
Minimum |
Average |
Maximum |
|
Long-term total phosphorus concentrations (µg/L) |
16 |
99 |
300 |
|
Long-term total nitrogen concentrations (µg/L) |
680 |
1200 |
1950 |
|
Long-term total chlorophyll concentrations (µg/L) |
4.0 |
23.4 |
102.7 |
|
Long-term Secchi depth (ft) |
1.3 |
2.6 |
4.7 |
Florida LAKEWATCH data were not collected in 1999.
Redwater (Putnam County)
Florida LAKEWATCH Aquatic Plant Summary
Aquatic plant data collected on August 13, 1991
|
Percent area covered with aquatic vegetation (PAC, %) |
2 |
|
Percent of lake's volume filled with vegetation (PVI, %) |
1 |
|
Average emergent plant biomass (kg wet wt/m2) |
2.1 |
|
Average floating-leaved plant biomass (kg wet wt/m2) |
4.8 |
|
Average submersed plant biomass (kg wet wt/m2) |
0.9 |
|
Average width of emergent and floating-leaved zone (ft.) |
12 |
|
Average lake depth (m) |
3 |
Frequency that plant species occur in 10 evenly spaced transects around the lake.
|
Common Name |
Plant Species |
Frequency (%) |
|
maidencane |
Panicum hemitomon |
100 |
|
alligator-weed |
Alternanthera philoxeroides |
90 |
|
bald cypress |
Taxodium distichum |
80 |
|
water-pennywort |
Hydrocotyle umbellata |
70 |
|
floating water-hyacinth |
Eichhornia crassipes |
40 |
|
slender spikerush |
Eleocharis baldwinii |
40 |
|
common duckweed |
Lemna minor |
10 |
|
smartweed |
Polygonum hydropiperoides |
10 |
|
baby-tears |
Micranthemum umbrosum |
10 |
|
flat-sedge |
Cyperus odoratus |
10 |
Redwater (Putnam County)
Florida LAKEWATCH Aquatic Plant Summary
Aquatic plant data collected on July 28, 1999
|
Percent area covered with aquatic vegetation (PAC, %) |
10 |
|
Percent of lake's volume filled with vegetation (PVI, %) |
4 |
|
Average emergent plant biomass (kg wet wt/m2) |
10.8 |
|
Average floating-leaved plant biomass (kg wet wt/m2) |
6.8 |
|
Average submersed plant biomass (kg wet wt/m2) |
0.0 |
|
Average width of emergent and floating-leaved zone (ft.) |
21 |
|
Average lake depth (m) |
2 |
Frequency that plant species occur in 10 evenly spaced transects around the lake.
|
Common Name |
Plant Species |
Frequency (%) |
|
maidencane |
Panicum hemitomon |
100 |
|
bald cypress |
Taxodium distichum |
100 |
|
water-pennywort |
Hydrocotyle umbellata |
90 |
|
para grass |
Brachiaria mutica |
90 |
|
alligator-weed |
Alternanthera philoxeroides |
80 |
|
wax myrtle |
Myrica cerifera |
70 |
|
buttonbush |
Cephalanthus occidentalis |
70 |
|
slender spikerush |
Eleocharis baldwinii |
60 |
|
floating water-hyacinth |
Eichhornia crassipes |
50 |
|
water primrose |
Ludwigia octovalvis |
40 |
|
smartweed |
Polygonum hydropiperoides |
30 |
|
water tupelo |
Nyssa aquatica |
30 |
|
common duckweed |
Lemna minor |
20 |
|
willow |
Salix spp. |
20 |
|
red maple |
Acer rubrum |
20 |
|
duck-potato |
Sagittaria lancifolia |
10 |
|
spatterdock |
Nuphar luteum |
10 |
|
pickerelweed |
Pontederia cordata |
10 |
|
cat-tail |
Typha spp. |
10 |
|
sawgrass |
Cladium jamaicense |
10 |
|
southern water-grass |
Hydrochloa caroliniensis |
10 |
|
elderberry |
Sambucus canadensis |
10 |