Porter (Orange County)
Florida LAKEWATCH Water Chemistry Summary
Location: Latitude 28°30'43", Longitude 81°19'24"
Period of record: 70 sampling dates; August 16, 1991 to February 24, 1999
Surface area (Shafer et al. 1986): 32 acres / 13 hectacres
Lake Region (Griffith et al. 1997): Orlando Ridge
Geologic formation (Brooks 1981):
The geology is dominated by phosphatic sand, silty sand, and clay of the Hawthorne Formation.
Physiographic region (Brooks 1981):
The water body lies in the Orlando Promontory division of the Central Lake District.
Long-term Florida LAKEWATCH Data
Numbers reported below are the minimum, average, and maximum value for the 70 months sampled:
|
|
Minimum |
Average |
Maximum |
|
Long-term total phosphorus concentrations (µg/L) |
7 |
15 |
38 |
|
Long-term total nitrogen concentrations (µg/L) |
270 |
500 |
870 |
|
Long-term total chlorophyll concentrations (µg/L) |
2.3 |
9.2 |
22.3 |
|
Long-term Secchi depth (ft) |
4.0 |
7.4 |
14.0 |
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 |
|
Feb-24-99 |
17 |
570 |
11.3 |
7.1 |
|
|
|
|
|
|
|
1999 Average |
17 |
570 |
11.3 |
7.1 |