Ada (Seminole County)
Florida LAKEWATCH Water Chemistry Summary
Location: Latitude 28°46'10", Longitude 81°17'5"
Period of record: 18 sampling dates; December 19, 1997 to September 30, 1999
Surface area (LAKEWATCH): 53 acres / 21 hectacres (Go to Bathymetric Map)
Lake Region (Griffith et al. 1997): Crescent City/DeLand Ridges
Geologic formation (Brooks 1981):
The geology is dominated by coastal sand and shelly silty sand of the preglacial Pleistocene.
Physiographic region (Brooks 1981):
The water body lies in the Casselberry-Oviedo-Geneva-Chuluota Hills 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Supplemental, unpublished water chemistry data, University of Florida.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 |
7.1 |
Total alkalinity (mg/L as CaCO3) |
32.0 |
|
Conductance (µS/cm @ 25 °C) |
177 |
Color (Pt-Co units) |
20 |
|
Chloride (mg/L) |
30.0 |
|
|
Long-term Florida LAKEWATCH Data
Numbers reported below are the minimum, average, and maximum value for the 18 months sampled:
|
|
Minimum |
Average |
Maximum |
|
Long-term total phosphorus concentrations (µg/L) |
13 |
17 |
22 |
|
Long-term total nitrogen concentrations (µg/L) |
480 |
540 |
630 |
|
Long-term total chlorophyll concentrations (µg/L) |
3.0 |
5.3 |
8.0 |
|
Long-term Secchi depth (ft) |
7.2 |
8.6 |
12.5 |
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-05-99 |
16 |
510 |
6.0 |
10.5 |
|
Mar-02-99 |
19 |
540 |
6.0 |
7.2 |
|
May-30-99 |
20 |
580 |
4.3 |
7.2 |
|
Jun-30-99 |
15 |
480 |
4.3 |
9.7 |
|
Jul-31-99 |
16 |
580 |
3.7 |
8.8 |
|
Aug-31-99 |
17 |
540 |
4.7 |
8.2 |
|
Sep-30-99 |
21 |
630 |
5.3 |
8.3 |
|
|
|
|
|
|
|
1999 Average |
18 |
550 |
4.9 |
8.6 |
Ada (Seminole County)
Florida LAKEWATCH Aquatic Plant Summary
Aquatic plant data collected on September 14, 1998
|
Percent area covered with aquatic vegetation (PAC, %) |
26 |
|
Percent of lake's volume filled with vegetation (PVI, %) |
2 |
|
Average emergent plant biomass (kg wet wt/m2) |
4.6 |
|
Average floating-leaved plant biomass (kg wet wt/m2) |
1.9 |
|
Average submersed plant biomass (kg wet wt/m2) |
6.8 |
|
Average width of emergent and floating-leaved zone (ft.) |
37 |
|
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 |
|
spatterdock |
Nuphar luteum |
90 |
|
pickerelweed |
Pontederia cordata |
90 |
|
stonewort |
Nitella spp. |
90 |
|
buttonbush |
Cephalanthus occidentalis |
80 |
|
willow |
Salix spp. |
80 |
|
sawgrass |
Cladium jamaicense |
70 |
|
cat-tail |
Typha spp. |
60 |
|
wax myrtle |
Myrica cerifera |
60 |
|
water primrose |
Ludwigia octovalvis |
60 |
|
cone-spur bladderwort |
Utricularia gibba |
30 |
|
rush fuirena |
Fuirena scirpoidea |
30 |
|
red maple |
Acer rubrum |
30 |
|
banana-lily |
Nymphoides aquatica |
20 |
|
baby-tears |
Micranthemum umbrosum |
20 |
|
St. John's wort |
Hypericum spp. |
20 |
|
red ludwigia |
Ludwigia repens |
10 |
|
water-pennywort |
Hydrocotyle umbellata |
10 |
|
hydrilla |
Hydrilla verticillata |
10 |
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