Martha (Orange County)
Florida LAKEWATCH Water Chemistry Summary
Location: Latitude 28°36'30", Longitude 81°16'22"
Period of record: 13 sampling dates; November 30, 1994 to May 23, 1996
Surface area (Shafer et al. 1986): 30 acres / 12 hectacres
Lake Region (Griffith et al. 1997): Orlando Ridge
Geologic formation (Brooks 1981):
The geology is dominated by coastal sand and shelly silty sand of the preglacial Pleistocene.
Physiographic region (Brooks 1981):
The water body lies in the Holopaw-Indian Town Ridges and Swales division of the Eastern Flatwoods District.
Long-term Florida LAKEWATCH Data
Numbers reported below are the minimum, average, and maximum value for the 13 months sampled:
|
|
Minimum |
Average |
Maximum |
|
Long-term total phosphorus concentrations (µg/L) |
15 |
24 |
31 |
|
Long-term total nitrogen concentrations (µg/L) |
490 |
610 |
760 |
|
Long-term total chlorophyll concentrations (µg/L) |
6.7 |
14.8 |
21.7 |
|
Long-term Secchi depth (ft) |
2.8 |
5.1 |
7.0 |
Florida LAKEWATCH data were not collected in 1999.