Concord (Seminole County)

Location: Latitude 28°40'27", Longitude 81°20'7"

Period of record: 17 sampling dates; May 30, 1996 to December 28, 1998

Surface area (Shafer et al. 1986): 20 acres / 8 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 lake lies in the Casselberry-Oviedo-Geneva-Chuluota Hills division of the Central Lake District.

Other LAKEWATCH data available: No additional data available.

Long-term Florida LAKEWATCH Data

Numbers reported below are the minimum, average and maximum value for the 17 months sampled:

 
Minimum
Average
Maximum
Long-term total phosphorus concentrations (µg/L)
26
39
56
Long-term total nitrogen concentrations (µg/L)
400
710
1470
Long-term total chlorophyll concentrations (µg/L)
7.0
29.1
80.3
Long-term Secchi depth (ft)
2.0
4.0
5.3

1998 Florida LAKEWATCH Data

Numbers reported below are monthly averages calculated from 3 mid-lake stations for total phosphorus (TP, µg/L

                             total nitrogen (TN, µg/L), chlorophyll (CHL, µg/L) and Secchi depth (SECCHI, ft) during 1998:
Date
TP (µg/L)
TN (µg/L)
CHL (µg/L)
SECCHI (ft)
Jan-20-98
26
560
25.7
5.0
Apr-10-98
38
560
14.3
4.3
Aug-20-98
35
600
15.0
4.0
Oct-14-98
55
1470
80.3
2.7
Nov-09-98
54
1300
59.3
2.0
Dec-28-98
48
900
48.0
3.8
         
1998 Average
43
900
40.4
3.6