Orienta North (Seminole County)
Florida LAKEWATCH Water Chemistry Summary
Location: Latitude 28°39'42", Longitude 81°22'9"
Period of record: 22 sampling dates; July 20, 1995 to December 30, 1999
Surface area (Shafer et al. 1986): 129 acres / 52 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 22 months sampled:
|
|
Minimum |
Average |
Maximum |
|
Long-term total phosphorus concentrations (µg/L) |
18 |
34 |
55 |
|
Long-term total nitrogen concentrations (µg/L) |
510 |
1030 |
1830 |
|
Long-term total chlorophyll concentrations (µg/L) |
20.7 |
46.5 |
77.0 |
|
Long-term Secchi depth (ft) |
1.0 |
2.8 |
7.0 |
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 |
|
Jan-06-99 |
49 |
1050 |
51.3 |
2.5 |
|
Feb-09-99 |
40 |
1030 |
33.7 |
2.5 |
|
Mar-16-99 |
48 |
1180 |
49.0 |
2.0 |
|
Apr-19-99 |
53 |
1830 |
77.0 |
1.5 |
|
Jun-22-99 |
33 |
1020 |
26.0 |
3.0 |
|
Jul-22-99 |
26 |
910 |
20.7 |
1.0 |
|
Aug-24-99 |
29 |
1130 |
38.0 |
2.0 |
|
Sep-29-99 |
34 |
1390 |
72.3 |
2.0 |
|
Oct-28-99 |
38 |
1290 |
66.3 |
2.2 |
|
Nov-30-99 |
52 |
1330 |
72.3 |
1.5 |
|
Dec-30-99 |
55 |
1280 |
56.3 |
2.0 |
|
|
|
|
|
|
|
1999 Average |
41 |
1220 |
51.2 |
2.0 |