Little Howell (Seminole County)
Florida LAKEWATCH Water Chemistry Summary
Location: Latitude 28°40'7", Longitude 81°16'52"
Period of record: 15 sampling dates; January 10, 1998 to September 17, 1999
Surface area (Shafer et al. 1986): 99 acres / 40 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 Casselberry-Oviedo-Geneva-Chuluota Hills division of the Central Lake District.
Long-term Florida LAKEWATCH Data
Numbers reported below are the minimum, average, and maximum value for the 15 months sampled:
|
|
Minimum |
Average |
Maximum |
|
Long-term total phosphorus concentrations (µg/L) |
14 |
20 |
28 |
|
Long-term total nitrogen concentrations (µg/L) |
510 |
570 |
650 |
|
Long-term total chlorophyll concentrations (µg/L) |
4.3 |
7.8 |
14.0 |
|
Long-term Secchi depth (ft) |
3.4 |
4.9 |
6.2 |
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 |
|
Jan-08-99 |
18 |
560 |
6.7 |
5.3 |
|
Feb-26-99 |
19 |
510 |
4.3 |
5.3 |
|
May-04-99 |
19 |
530 |
4.3 |
5.0 |
|
Jun-22-99 |
20 |
520 |
6.7 |
4.5 |
|
Sep-17-99 |
23 |
620 |
8.7 |
6.2 |
|
|
|
|
|
|
|
1999 Average |
20 |
550 |
6.1 |
5.3 |