Blue Heron (Leon County)
Florida LAKEWATCH Water Chemistry Summary
Location: Latitude 30°36'2", Longitude 84°14'15"
Period of record: 73 sampling dates; February 27, 1993 to December 26, 1999
Surface area : No data available.
Lake Region (Griffith et al. 1997): Tifton/Tallahassee Uplands
Geologic formation (Brooks 1981):
The geology is dominated by granular sand and clayey sand with some clay lenses of the Hawthorne Formation.
Physiographic region (Brooks 1981):
The water body lies in the Tallahassee Red Hills subdivision of the State Line Hills division of the Ocala Uplift District.
Supplemental, unpublished water chemistry data, University of Florida.
Numbers reported below are the average for 1 month sampled:
|
pH |
7.4 |
Sulfate (mg/L) |
0.7 |
|
Total alkalinity (mg/L as CaCO3) |
20.0 |
Calcium (mg/L) |
4.6 |
|
Conductance (µS/cm @ 25 °C) |
57 |
Magnesium (mg/L) |
2.3 |
|
Color (Pt-Co units) |
15 |
Sodium (mg/L) |
2.8 |
|
Potassium (mg/L) |
0.9 |
|
|
Long-term Florida LAKEWATCH Data
Numbers reported below are the minimum, average, and maximum value for the 73 months sampled:
|
|
Minimum |
Average |
Maximum |
|
Long-term total phosphorus concentrations (µg/L) |
19 |
50 |
115 |
|
Long-term total nitrogen concentrations (µg/L) |
280 |
720 |
1950 |
|
Long-term total chlorophyll concentrations (µg/L) |
1.0 |
28.2 |
170.0 |
|
Long-term Secchi depth (ft) |
0.7 |
2.9 |
5.0 |
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-17-99 |
42 |
630 |
25.0 |
3.0 |
|
Feb-21-99 |
52 |
770 |
35.7 |
2.3 |
|
Mar-21-99 |
88 |
810 |
35.7 |
2.0 |
|
Apr-18-99 |
68 |
750 |
29.0 |
2.5 |
|
May-09-99 |
82 |
1200 |
52.3 |
1.5 |
|
Jun-13-99 |
71 |
1770 |
103.0 |
1.0 |
|
Jul-25-99 |
64 |
1060 |
34.3 |
2.3 |
|
Aug-22-99 |
60 |
950 |
38.0 |
2.8 |
|
Sep-26-99 |
68 |
780 |
58.0 |
2.5 |
|
Oct-18-99 |
66 |
780 |
49.7 |
3.0 |
|
Nov-13-99 |
64 |
710 |
38.3 |
2.5 |
|
Dec-26-99 |
49 |
610 |
21.3 |
3.0 |
|
|
|
|
|
|
|
1999 Average |
65 |
900 |
43.4 |
2.4 |
Blue Heron (Leon County)
Florida LAKEWATCH Aquatic Plant Summary
Aquatic plant data collected on June 3, 1993
|
Percent area covered with aquatic vegetation (PAC, %) |
98 |
|
Percent of lake's volume filled with vegetation (PVI, %) |
20 |
|
Average emergent plant biomass (kg wet wt/m2) |
5.0 |
|
Average floating-leaved plant biomass (kg wet wt/m2) |
0.1 |
|
Average submersed plant biomass (kg wet wt/m2) |
1.3 |
|
Average width of emergent and floating-leaved zone (ft.) |
14 |
|
Average lake depth (m) |
1 |
Frequency that plant species occur in 10 evenly spaced transects around the lake.
|
Common Name |
Plant Species |
Frequency (%) |
|
maidencane |
Panicum hemitomon |
100 |
|
southern naiad |
Najas guadalupensis |
90 |
|
. |
Juncus coriaceous |
70 |
|
smartweed |
Polygonum hydropiperoides |
60 |
|
water-pennywort |
Hydrocotyle umbellata |
60 |
|
path rush |
Juncus tenuis |
60 |
|
. |
Cyperus virens |
60 |
|
wax myrtle |
Myrica cerifera |
50 |
|
willow |
Salix spp. |
50 |
|
American lotus |
Nelumbo lutea |
40 |
|
soft rush |
Juncus effusus |
40 |
|
lemon bacopa |
Bacopa caroliniana |
30 |
|
hop sedge |
Carex lupulina |
30 |
|
red ludwigia |
Ludwigia repens |
20 |
|
lizard's-tail |
Saururus cernuus |
20 |
|
para grass |
Brachiaria mutica |
20 |
|
jointed flat sedge |
Cyperus haspan |
20 |
|
common duckweed |
Lemna minor |
10 |
|
slender spikerush |
Eleocharis baldwinii |
10 |
|
fragrant water-lily |
Nymphaea odorata |
10 |
|
cat-tail |
Typha spp. |
10 |
|
tapegrass |
Vallisneria americana |
10 |
|
water primrose |
Ludwigia octovalvis |
10 |