Egypt (Hillsborough County)
Florida LAKEWATCH Water Chemistry Summary
Location: Latitude 28°0'40", Longitude 82°29'31"
Period of record: 29 sampling dates; August 23, 1993 to December 13, 1999
Surface area (Shafer et al. 1986): 67 acres / 27 hectacres
Lake Region (Griffith et al. 1997): Land-O-Lakes
Geologic formation (Brooks 1981):
The geology is dominated by argillaceous to sandy impure limestone of the Tampa Formation.
Physiographic region (Brooks 1981):
The water body lies in The water body Tarpon Basin subdivision of the Tampa Plain 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Supplemental, unpublished water chemistry data, University of Florida.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 |
7.6 |
Sulfate (mg/L) |
24.3 |
|
Total alkalinity (mg/L as CaCO3) |
62.7 |
Conductance (µS/cm @ 25 °C) |
257 |
|
Color (Pt-Co units) |
12 |
Chloride (mg/L) |
20.3 |
Long-term Florida LAKEWATCH Data
Numbers reported below are the minimum, average, and maximum value for the 29 months sampled:
|
|
Minimum |
Average |
Maximum |
|
Long-term total phosphorus concentrations (µg/L) |
12 |
27 |
132 |
|
Long-term total nitrogen concentrations (µg/L) |
520 |
740 |
970 |
|
Long-term total chlorophyll concentrations (µg/L) |
4.7 |
16.9 |
38.7 |
|
Long-term Secchi depth (ft) |
3.5 |
5.3 |
10.0 |
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 |
|
Sep-27-99 |
132 |
930 |
. |
4.8 |
|
Dec-13-99 |
41 |
930 |
17.7 |
5.0 |
|
|
|
|
|
|
|
1999 Average |
87 |
930 |
17.7 |
4.9 |
Egypt (Hillsborough County)
Florida LAKEWATCH Aquatic Plant Summary
Aquatic plant data collected on September 29, 1993
|
Percent area covered with aquatic vegetation (PAC, %) |
10 |
|
Percent of lake's volume filled with vegetation (PVI, %) |
1 |
|
Average emergent plant biomass (kg wet wt/m2) |
0.0 |
|
Average floating-leaved plant biomass (kg wet wt/m2) |
0.2 |
|
Average submersed plant biomass (kg wet wt/m2) |
4.4 |
|
Average width of emergent and floating-leaved zone (ft.) |
2 |
|
Average lake depth (m) |
5 |
Frequency that plant species occur in 10 evenly spaced transects around the lake.
|
Common Name |
Plant Species |
Frequency (%) |
|
tapegrass |
Vallisneria americana |
70 |
|
water-pennywort |
Hydrocotyle umbellata |
40 |
|
musk-grass |
Chara spp. |
30 |
|
stonewort |
Nitella spp. |
30 |
|
cat-tail |
Typha spp. |
20 |
|
water primrose |
Ludwigia octovalvis |
20 |
|
fragrant water-lily |
Nymphaea odorata |
10 |
|
baby-tears |
Micranthemum umbrosum |
10 |
|
wax myrtle |
Myrica cerifera |
10 |
|
torpedograss |
Panicum repens |
10 |