Johnson Pond (Alachua County)
Florida LAKEWATCH Water Chemistry Summary
Location: Latitude 29°43'19", Longitude 82°21'4"
Period of record: 8 sampling dates; July 20, 1992 to May 13, 1994
Surface area (Shafer et al. 1986): 5 acres / 2 hectacres
Lake Region (Griffith et al. 1997): Central Valley
Geologic formation (Brooks 1981):
The geology is dominated by phosphatic sand, clayey fine sand, and clay of the Bone Valley Formation.
Physiographic region (Brooks 1981):
The water body lies in the High Flatwoods division of the Sea Island District.
Long-term Florida LAKEWATCH Data
Numbers reported below are the minimum, average, and maximum value for the 8 months sampled:
|
|
Minimum |
Average |
Maximum |
|
Long-term total phosphorus concentrations (µg/L) |
68 |
188 |
436 |
|
Long-term total nitrogen concentrations (µg/L) |
730 |
1840 |
4290 |
|
Long-term total chlorophyll concentrations (µg/L) |
30.3 |
201.2 |
402.0 |
|
Long-term Secchi depth (ft) |
0.8 |
2.5 |
3.6 |
Florida LAKEWATCH data were not collected in 1999.