Maclay (Leon County)
Florida LAKEWATCH Water Chemistry Summary
Location: Latitude 30°30'57", Longitude 84°14'47"
Period of record: 86 sampling dates; February 6, 1990 to December 31, 1999
Surface area (LAKEWATCH): 173 acres / 70 hectacres
Lake Region (Griffith et al. 1997): Tifton/Tallahassee Uplands
Geologic formation (Brooks 1981):
The geology is a mixture of two major types dominated by granular sand and clayey sand with some clay lenses of the Hawthorne Formation and gravel, sand and clay of the Citronelle 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Supplemental, unpublished water chemistry data, University of Florida.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 |
6.7 |
Sulfate (mg/L) |
4.0 |
|
Total alkalinity (mg/L as CaCO3) |
3.5 |
Calcium (mg/L) |
1.5 |
|
Conductance (µS/cm @ 25 °C) |
27 |
Magnesium (mg/L) |
0.6 |
|
Color (Pt-Co units) |
6 |
Sodium (mg/L) |
2.0 |
|
Chloride (mg/L) |
5.1 |
Potassium (mg/L) |
0.2 |
|
Silicon (mg/L) |
0.0 |
|
|
Long-term Florida LAKEWATCH Data
Numbers reported below are the minimum, average, and maximum value for the 86 months sampled:
|
|
Minimum |
Average |
Maximum |
|
Long-term total phosphorus concentrations (µg/L) |
7 |
14 |
64 |
|
Long-term total nitrogen concentrations (µg/L) |
210 |
340 |
740 |
|
Long-term total chlorophyll concentrations (µg/L) |
1.0 |
5.5 |
70.5 |
|
Long-term Secchi depth (ft) |
10.0 |
15.6 |
22.0 |
1999 Florida LAKEWATCH Data
Numbers reported below are monthly averages calculated from 2 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-21-99 |
14 |
270 |
2.0 |
17.0 |
|
Feb-22-99 |
14 |
440 |
2.5 |
16.5 |
|
Mar-11-99 |
12 |
390 |
3.0 |
14.0 |
|
Apr-14-99 |
12 |
470 |
2.0 |
16.5 |
|
May-24-99 |
10 |
350 |
1.0 |
18.5 |
|
Jun-24-99 |
14 |
420 |
6.5 |
14.0 |
|
Jul-28-99 |
9 |
300 |
2.0 |
16.5 |
|
Aug-23-99 |
14 |
350 |
3.5 |
12.0 |
|
Sep-23-99 |
18 |
620 |
11.0 |
10.0 |
|
Oct-28-99 |
17 |
410 |
8.0 |
11.5 |
|
Nov-15-99 |
18 |
410 |
5.0 |
12.5 |
|
Dec-31-99 |
17 |
320 |
6.5 |
11.5 |
|
|
|
|
|
|
|
1999 Average |
14 |
390 |
4.4 |
14.2 |
Maclay (Leon County)
Florida LAKEWATCH Aquatic Plant Summary
Aquatic plant data collected on June 25, 1996
|
Percent area covered with aquatic vegetation (PAC, %) |
86 |
|
Percent of lake's volume filled with vegetation (PVI, %) |
14 |
|
Average emergent plant biomass (kg wet wt/m2) |
0.9 |
|
Average floating-leaved plant biomass (kg wet wt/m2) |
2.2 |
|
Average submersed plant biomass (kg wet wt/m2) |
5.3 |
|
Average width of emergent and floating-leaved zone (ft.) |
72 |
|
Average lake depth (m) |
6 |
Frequency that plant species occur in 4 evenly spaced transects around the lake.
|
Common Name |
Plant Species |
Frequency (%) |
|
slender spikerush |
Eleocharis baldwinii |
100 |
|
water-shield |
Brasenia schreberi |
100 |
|
strap-leaf sag |
Sagittaria kurziana |
100 |
|
bog-moss |
Mayaca fluviatilis |
100 |
|
banana-lily |
Nymphoides aquatica |
75 |
|
southern naiad |
Najas guadalupensis |
75 |
|
buttonbush |
Cephalanthus occidentalis |
75 |
|
maidencane |
Panicum hemitomon |
75 |
|
American lotus |
Nelumbo lutea |
50 |
|
fragrant water-lily |
Nymphaea odorata |
50 |
|
red ludwigia |
Ludwigia repens |
50 |
|
smartweed |
Polygonum hydropiperoides |
50 |
|
pickerelweed |
Pontederia cordata |
50 |
|
lemon bacopa |
Bacopa caroliniana |
50 |
|
coontail |
Ceratophyllum demersum |
50 |
|
variable-leaf milfoil |
Myriophyllum heterophyllum |
50 |
|
purple fanwort |
Cabomba pulcherrima |
50 |
|
water-pennywort |
Hydrocotyle umbellata |
25 |
Maclay (Leon County)
Florida LAKEWATCH Aquatic Plant Summary
Aquatic plant data collected on June 25, 1997
|
Percent area covered with aquatic vegetation (PAC, %) |
80 |
|
Percent of lake's volume filled with vegetation (PVI, %) |
18 |
|
Average emergent plant biomass (kg wet wt/m2) |
3.7 |
|
Average floating-leaved plant biomass (kg wet wt/m2) |
2.0 |
|
Average submersed plant biomass (kg wet wt/m2) |
4.6 |
|
Average width of emergent and floating-leaved zone (ft.) |
42 |
|
Average lake depth (m) |
6 |
Frequency that plant species occur in 5 evenly spaced transects around the lake.
|
Common Name |
Plant Species |
Frequency (%) |
|
banana-lily |
Nymphoides aquatica |
100 |
|
strap-leaf sag |
Sagittaria kurziana |
100 |
|
maidencane |
Panicum hemitomon |
100 |
|
red ludwigia |
Ludwigia repens |
80 |
|
purple fanwort |
Cabomba pulcherrima |
80 |
|
water-shield |
Brasenia schreberi |
60 |
|
fragrant water-lily |
Nymphaea odorata |
60 |
|
pickerelweed |
Pontederia cordata |
60 |
|
coontail |
Ceratophyllum demersum |
60 |
|
bog-moss |
Mayaca fluviatilis |
60 |
|
southern naiad |
Najas guadalupensis |
60 |
|
buttonbush |
Cephalanthus occidentalis |
60 |
|
floating water-hyacinth |
Eichhornia crassipes |
40 |
|
alligator-weed |
Alternanthera philoxeroides |
40 |
|
slender spikerush |
Eleocharis baldwinii |
40 |
|
American lotus |
Nelumbo lutea |
40 |
|
bacopa |
Bacopa monnieri |
40 |
|
wax myrtle |
Myrica cerifera |
40 |
|
common salvinia |
Salvinia rotundifolia |
20 |
|
morning-glory family |
Convolvulaceae |
20 |
|
smartweed |
Polygonum hydropiperoides |
20 |
|
water-pennywort |
Hydrocotyle umbellata |
20 |
|
variable-leaf milfoil |
Myriophyllum heterophyllum |
20 |
|
variableleaf pondweed |
Potamogeton diversifolius |
20 |
|
para grass |
Brachiaria mutica |
20 |
|
southern cutgrass |
Leersia hexandra |
20 |