Swatara (Lake County)

Swatara (Lake County)

Florida LAKEWATCH Water Chemistry Summary

Location: Latitude 28°51'57", Longitude 81°38'37"

Period of record: 5 sampling dates; October 16, 1992 to June 8, 1993

Surface area (Shafer et al. 1986): 74 acres / 30 hectacres

Lake Region (Griffith et al. 1997): Apopka Upland

Geologic formation (Brooks 1981):

The geology is dominated by quartz sand and quartzite gravel with sandy clay beds of the Hawthorne Formation.

Physiographic region (Brooks 1981):

The water body lies in the Mount Dora Ridge subdivision of the Apopka Upland division of the Central Lake District.

Supplemental, unpublished water chemistry data, University of Florida.

Numbers reported below are the average for 1 month sampled:

Long-term Florida LAKEWATCH Data

Numbers reported below are the minimum, average, and maximum value for the 5 months sampled:

	Minimum	Average	Maximum
Long-term total phosphorus concentrations (µg/L)	10	14	16
Long-term total nitrogen concentrations (µg/L)	480	580	630
Long-term total chlorophyll concentrations (µg/L)	5.0	11.6	21.7
Long-term Secchi depth (ft)	5.4	8.1	11.2

Florida LAKEWATCH data were not collected in 1999.

Swatara (Lake County)

Florida LAKEWATCH Aquatic Plant Summary

Aquatic plant data collected on June 8, 1993

Percent area covered with aquatic vegetation (PAC, %)	56
Percent of lake's volume filled with vegetation (PVI, %)	4
Average emergent plant biomass (kg wet wt/m2)	2.3
Average floating-leaved plant biomass (kg wet wt/m2)	0.4
Average submersed plant biomass (kg wet wt/m2)	4.1
Average width of emergent and floating-leaved zone (ft.)	49
Average lake depth (m)	4

Frequency that plant species occur in 10 evenly spaced transects around the lake.