Flora (Polk County)
Florida LAKEWATCH Water Chemistry Summary
Location: Latitude 27°52'27", Longitude 81°51'0"
Period of record: 100 sampling dates; July 5, 1991 to December 14, 1999
Surface area (Shafer et al. 1986): 26 acres / 11 hectacres
Lake Region (Griffith et al. 1997): Lakeland/Bone Valley Upland
Geologic formation (Brooks 1981):
The geology is dominated by phosphatic sand, clayey fine sand, and clay of the Bone Valley Formation.
Physiographic region (Brooks 1981):
The water body lies in the Bartow Embayment 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Supplemental, unpublished water chemistry data, University of Florida.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 |
9.1 |
Sulfate (mg/L) |
5.0 |
|
Total alkalinity (mg/L as CaCO3) |
24.0 |
Conductance (µS/cm @ 25 °C) |
151 |
|
Color (Pt-Co units) |
23 |
Chloride (mg/L) |
23.0 |
Long-term Florida LAKEWATCH Data
Numbers reported below are the minimum, average, and maximum value for the 100 months sampled:
|
|
Minimum |
Average |
Maximum |
|
Long-term total phosphorus concentrations (µg/L) |
166 |
299 |
452 |
|
Long-term total nitrogen concentrations (µg/L) |
1390 |
1970 |
3200 |
|
Long-term total chlorophyll concentrations (µg/L) |
31.3 |
102.9 |
214.0 |
|
Long-term Secchi depth (ft) |
1.0 |
1.9 |
3.5 |
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-12-99 |
250 |
2020 |
124.0 |
1.5 |
|
Feb-11-99 |
208 |
1570 |
71.0 |
2.0 |
|
Mar-11-99 |
255 |
2360 |
154.3 |
1.5 |
|
Apr-13-99 |
301 |
2130 |
90.0 |
1.5 |
|
May-10-99 |
276 |
2300 |
121.3 |
1.5 |
|
Jun-09-99 |
299 |
2610 |
179.3 |
1.5 |
|
Jul-21-99 |
215 |
1920 |
62.3 |
1.5 |
|
Aug-18-99 |
291 |
2530 |
119.0 |
1.5 |
|
Sep-07-99 |
267 |
2330 |
84.7 |
1.5 |
|
Oct-14-99 |
228 |
1900 |
102.0 |
1.5 |
|
Nov-16-99 |
316 |
2050 |
121.7 |
1.5 |
|
Dec-14-99 |
267 |
1940 |
128.0 |
2.0 |
|
|
|
|
|
|
|
1999 Average |
264 |
2140 |
113.1 |
1.6 |
Flora (Polk County)
Florida LAKEWATCH Aquatic Plant Summary
Aquatic plant data collected on May 25, 1993
|
Percent area covered with aquatic vegetation (PAC, %) |
40 |
|
Percent of lake's volume filled with vegetation (PVI, %) |
5 |
|
Average emergent plant biomass (kg wet wt/m2) |
5.5 |
|
Average floating-leaved plant biomass (kg wet wt/m2) |
0.8 |
|
Average submersed plant biomass (kg wet wt/m2) |
0.0 |
|
Average width of emergent and floating-leaved zone (ft.) |
9 |
|
Average lake depth (m) |
3 |
Frequency that plant species occur in 10 evenly spaced transects around the lake.
|
Common Name |
Plant Species |
Frequency (%) |
|
water-pennywort |
Hydrocotyle umbellata |
70 |
|
cat-tail |
Typha spp. |
60 |
|
water primrose |
Ludwigia octovalvis |
60 |
|
willow |
Salix spp. |
60 |
|
torpedograss |
Panicum repens |
50 |
|
alligator-weed |
Alternanthera philoxeroides |
20 |
|
wax myrtle |
Myrica cerifera |
10 |
|
para grass |
Brachiaria mutica |
10 |