Spring Garden (Volusia County)
Florida LAKEWATCH Water Chemistry Summary
Location: Latitude 29°7'24", Longitude 81°22'21"
Period of record: 83 sampling dates; April 15, 1992 to November 27, 1999
Surface area (Shafer et al. 1986): 521 acres / 211 hectacres
Lake Region (Griffith et al. 1997): Eastern Flatlands
Geologic formation (Brooks 1981):
The geology is a mixture of two major types dominated by dune sand and shell with silty sand, silt, and clay of the Princess Ann Formation and coastal sand and shelly silty sand of the preglacial Pleistocene.
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Supplemental, unpublished water chemistry data, University of Florida.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 1 month sampled:
|
pH |
8.4 |
Sulfate (mg/L) |
25.7 |
|
Total alkalinity (mg/L as CaCO3) |
120.0 |
Conductance (µS/cm @ 25 °C) |
763 |
|
Color (Pt-Co units) |
5 |
Chloride (mg/L) |
161.3 |
Long-term Florida LAKEWATCH Data
Numbers reported below are the minimum, average, and maximum value for the 83 months sampled:
|
|
Minimum |
Average |
Maximum |
|
Long-term total phosphorus concentrations (µg/L) |
25 |
51 |
85 |
|
Long-term total nitrogen concentrations (µg/L) |
430 |
770 |
1150 |
|
Long-term total chlorophyll concentrations (µg/L) |
1.3 |
21.1 |
66.3 |
|
Long-term Secchi depth (ft) |
2.7 |
3.9 |
5.9 |
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-29-99 |
54 |
670 |
13.0 |
3.8 |
|
Mar-03-99 |
44 |
740 |
7.7 |
. |
|
Mar-24-99 |
46 |
640 |
6.0 |
. |
|
May-27-99 |
58 |
630 |
14.3 |
. |
|
Jun-14-99 |
47 |
530 |
23.0 |
. |
|
Jul-07-99 |
47 |
550 |
27.0 |
. |
|
Aug-10-99 |
63 |
740 |
24.7 |
. |
|
Sep-08-99 |
48 |
770 |
19.5 |
. |
|
Oct-22-99 |
55 |
770 |
27.7 |
3.2 |
|
Nov-27-99 |
71 |
1010 |
56.3 |
. |
|
|
|
|
|
|
|
1999 Average |
53 |
710 |
21.9 |
3.5 |
Spring Garden (Volusia County)
Florida LAKEWATCH Aquatic Plant Summary
Aquatic plant data collected on July 15, 1993
|
Percent area covered with aquatic vegetation (PAC, %) |
88 |
|
Percent of lake's volume filled with vegetation (PVI, %) |
54 |
|
Average emergent plant biomass (kg wet wt/m2) |
3.9 |
|
Average floating-leaved plant biomass (kg wet wt/m2) |
6.7 |
|
Average submersed plant biomass (kg wet wt/m2) |
1.6 |
|
Average width of emergent and floating-leaved zone (ft.) |
58 |
|
Average lake depth (m) |
0 |
Frequency that plant species occur in 10 evenly spaced transects around the lake.
|
Common Name |
Plant Species |
Frequency (%) |
|
water-lettuce |
Pistia stratiotes |
100 |
|
floating water-hyacinth |
Eichhornia crassipes |
100 |
|
pickerelweed |
Pontederia cordata |
100 |
|
frog's-bit |
Limnobium spongia |
90 |
|
cat-tail |
Typha spp. |
90 |
|
hydrilla |
Hydrilla verticillata |
90 |
|
common duckweed |
Lemna minor |
80 |
|
water-pennywort |
Hydrocotyle umbellata |
80 |
|
green algae |
Chlorphyta |
70 |
|
fragrant water-lily |
Nymphaea odorata |
60 |
|
para grass |
Brachiaria mutica |
60 |
|
coontail |
Ceratophyllum demersum |
50 |
|
wax myrtle |
Myrica cerifera |
50 |
|
willow |
Salix spp. |
50 |
|
common salvinia |
Salvinia rotundifolia |
40 |
|
spatterdock |
Nuphar luteum |
40 |
|
alligator-weed |
Alternanthera philoxeroides |
30 |
|
red ludwigia |
Ludwigia repens |
30 |
|
tapegrass |
Vallisneria americana |
30 |
|
bald cypress |
Taxodium distichum |
30 |
|
water hemlock |
Cicuta mexicana |
30 |
|
duck-potato |
Sagittaria lancifolia |
20 |
|
sawgrass |
Cladium jamaicense |
20 |
|
salt-bush |
Baccharis spp. |
10 |
|
buttonbush |
Cephalanthus occidentalis |
10 |
|
giant bulrush |
Scirpus californicus |
10 |
|
wild rice |
Zizania aquatica |
10 |