Church (Hillsborough County)
Florida LAKEWATCH Water Chemistry Summary
Location: Latitude 28°6'12", Longitude 82°35'59"
Period of record: 46 sampling dates; November 17, 1990 to November 30, 1998
Surface area (Shafer et al. 1986): 68 acres / 28 hectacres
Lake Region (Griffith et al. 1997): Keystone 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 Land-O-Lakes 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Supplemental, unpublished water chemistry data, University of Florida.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 2 months sampled:
|
pH |
6.8 |
Sulfate (mg/L) |
31.8 |
|
Total alkalinity (mg/L as CaCO3) |
6.7 |
Calcium (mg/L) |
11.0 |
|
Conductance (µS/cm @ 25 °C) |
182 |
Magnesium (mg/L) |
4.8 |
|
Color (Pt-Co units) |
13 |
Sodium (mg/L) |
9.5 |
|
Chloride (mg/L) |
21.0 |
Potassium (mg/L) |
4.5 |
|
Silicon (mg/L) |
0.4 |
|
|
Long-term Florida LAKEWATCH Data
Numbers reported below are the minimum, average, and maximum value for the 46 months sampled:
|
|
Minimum |
Average |
Maximum |
|
Long-term total phosphorus concentrations (µg/L) |
10 |
15 |
21 |
|
Long-term total nitrogen concentrations (µg/L) |
530 |
640 |
860 |
|
Long-term total chlorophyll concentrations (µg/L) |
1.0 |
4.6 |
13.3 |
|
Long-term Secchi depth (ft) |
5.0 |
8.4 |
12.4 |
Florida LAKEWATCH data were not collected in 1999.
Church (Hillsborough County)
Florida LAKEWATCH Aquatic Plant Summary
Aquatic plant data collected on May 26, 1992
|
Percent area covered with aquatic vegetation (PAC, %) |
74 |
|
Percent of lake's volume filled with vegetation (PVI, %) |
8 |
|
Average emergent plant biomass (kg wet wt/m2) |
4.4 |
|
Average floating-leaved plant biomass (kg wet wt/m2) |
0.8 |
|
Average submersed plant biomass (kg wet wt/m2) |
1.6 |
|
Average width of emergent and floating-leaved zone (ft.) |
37 |
|
Average lake depth (m) |
2 |
Frequency that plant species occur in 10 evenly spaced transects around the lake.
|
Common Name |
Plant Species |
Frequency (%) |
|
cat-tail |
Typha spp. |
90 |
|
hydrilla |
Hydrilla verticillata |
90 |
|
bladderwort |
Utricularia foliosa |
70 |
|
fragrant water-lily |
Nymphaea odorata |
60 |
|
torpedograss |
Panicum repens |
40 |
|
water-pennywort |
Hydrocotyle umbellata |
30 |
|
maidencane |
Panicum hemitomon |
30 |
|
spatterdock |
Nuphar luteum |
10 |
|
pickerelweed |
Pontederia cordata |
10 |
|
purple fanwort |
Cabomba pulcherrima |
10 |
|
variableleaf pondweed |
Potamogeton diversifolius |
10 |
|
musk-grass |
Chara spp. |
10 |