Avalon (Orange County)

Florida LAKEWATCH Water Chemistry Summary

Location: Latitude 28°30'38", Longitude 81°38'39"

Period of record: 22 sampling dates; September 1, 1992 to December 15, 1999

Surface area (Shafer et al. 1986): 162 acres / 66 hectacres

Lake Region (Griffith et al. 1997): Clermont Uplands

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 Gap subdivision of the Lake Wales Ridge division of the Central Lake District.

Supplemental, unpublished water chemistry data, University of Florida.

Numbers reported below are the average for 1 month sampled:
 

pH
6.4
 Sulfate (mg/L)
15.0
Total alkalinity (mg/L as CaCO3)
3.9
 Calcium (mg/L)
2.5
Conductance (µS/cm @ 25 °C)
129
 Magnesium (mg/L)
5.5
Color (Pt-Co units)
42
 Sodium (mg/L)
8.4
Chloride (mg/L)
25.8
 Potassium (mg/L)
4.9
Silicon (mg/L)
0.0
    

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)
8
12
17
Long-term total nitrogen concentrations (µg/L)
750
890
1030
Long-term total chlorophyll concentrations (µg/L)
3.3
7.2
10.0
Long-term Secchi depth (ft)
5.3
7.1
9.8

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-17-99
9
800
3.3
8.0
Feb-17-99
12
750
7.0
5.2
Mar-21-99
14
1020
5.7
8.0
Apr-25-99
17
970
8.3
5.8
May-16-99
17
960
8.0
7.0
Jun-20-99
13
840
8.3
6.2
Jul-11-99
15
820
9.3
9.2
Aug-15-99
12
820
5.0
7.5
Sep-11-99
14
870
7.3
6.8
Oct-24-99
14
950
9.0
5.8
Nov-14-99
13
940
10.0
7.2
Dec-15-99
13
1030
7.7
6.5
         
1999 Average
14
900
7.4
6.9

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