Orienta 1 (Seminole County)
Florida LAKEWATCH Water Chemistry Summary
Location: Latitude 28°39'15", Longitude 81°22'40"
Period of record: 27 sampling dates; June 17, 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 27 months sampled:
|
|
Minimum |
Average |
Maximum |
|
Long-term total phosphorus concentrations (µg/L) |
37 |
51 |
84 |
|
Long-term total nitrogen concentrations (µg/L) |
660 |
1370 |
2620 |
|
Long-term total chlorophyll concentrations (µg/L) |
23.0 |
63.8 |
174.0 |
|
Long-term Secchi depth (ft) |
1.0 |
2.2 |
5.0 |
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-18-99 |
50 |
1400 |
64.0 |
2.0 |
|
Feb-18-99 |
64 |
1900 |
61.0 |
2.5 |
|
Mar-20-99 |
69 |
1860 |
114.0 |
1.0 |
|
Apr-20-99 |
84 |
2240 |
174.0 |
2.0 |
|
May-19-99 |
76 |
2620 |
108.0 |
1.3 |
|
Jun-09-99 |
55 |
2300 |
91.0 |
1.0 |
|
Jul-21-99 |
47 |
1530 |
57.3 |
1.0 |
|
Aug-20-99 |
51 |
1960 |
89.3 |
1.0 |
|
Sep-28-99 |
45 |
1630 |
61.0 |
2.0 |
|
Oct-28-99 |
41 |
1270 |
65.7 |
1.6 |
|
Nov-30-99 |
42 |
1220 |
60.3 |
1.0 |
|
Dec-30-99 |
44 |
1220 |
39.3 |
1.8 |
|
|
|
|
|
|
|
1999 Average |
56 |
1760 |
82.1 |
1.5 |