Orienta East (Seminole County)
Florida LAKEWATCH Water Chemistry Summary
Location: Latitude 28°39'34", Longitude 81°22'12"
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) |
21 |
40 |
58 |
|
Long-term total nitrogen concentrations (µg/L) |
670 |
1330 |
2490 |
|
Long-term total chlorophyll concentrations (µg/L) |
14.7 |
65.8 |
114.7 |
|
Long-term Secchi depth (ft) |
1.2 |
2.3 |
5.2 |
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-06-99 |
53 |
1380 |
75.7 |
2.0 |
|
Feb-09-99 |
48 |
1360 |
63.0 |
2.0 |
|
Mar-16-99 |
58 |
1580 |
91.7 |
1.5 |
|
Apr-19-99 |
54 |
2490 |
114.7 |
1.5 |
|
Jun-22-99 |
42 |
1680 |
61.7 |
2.0 |
|
Jul-22-99 |
34 |
1410 |
40.3 |
1.7 |
|
Aug-24-99 |
39 |
1720 |
78.7 |
1.5 |
|
Sep-29-99 |
42 |
1670 |
81.7 |
2.0 |
|
Oct-28-99 |
40 |
1490 |
82.7 |
1.9 |
|
Nov-30-99 |
47 |
1440 |
75.0 |
1.2 |
|
Dec-30-99 |
46 |
1210 |
54.3 |
2.0 |
|
|
|
|
|
|
|
1999 Average |
46 |
1590 |
74.5 |
1.7 |