Eastern (Walton County)
Florida LAKEWATCH Water Chemistry Summary
Location: Latitude 30°18'36", Longitude 86°5'36"
Period of record: 23 sampling dates; January 13, 1997 to October 22, 1999
Surface area (Shafer et al. 1986): 90 acres / 36 hectacres
Lake Region (Griffith et al. 1997): Gulf Coast Lowlands
Geologic formation (Brooks 1981):
The geology is dominated by beach and dune sand with silty sand, silt, and clay of the Biloxi Formation.
Physiographic region (Brooks 1981):
The water body lies in the Coastal Strip division of the Apalachicola Delta District.
Supplemental, unpublished water chemistry data, University of Florida.
Numbers reported below are the average for 1 month sampled:
|
pH |
7.3 |
Sulfate (mg/L) |
500.7 |
|
Total alkalinity (mg/L as CaCO3) |
27.0 |
Conductance (µS/cm @ 25 °C) |
11704 |
|
Color (Pt-Co units) |
199 |
Chloride (mg/L) |
3787.7 |
|
Silicon (mg/L) |
1.3 |
|
|
Long-term Florida LAKEWATCH Data
Numbers reported below are the minimum, average, and maximum value for the 23 months sampled:
|
|
Minimum |
Average |
Maximum |
|
Long-term total phosphorus concentrations (µg/L) |
6 |
10 |
18 |
|
Long-term total nitrogen concentrations (µg/L) |
180 |
250 |
530 |
|
Long-term total chlorophyll concentrations (µg/L) |
1.0 |
3.4 |
19.7 |
|
Long-term Secchi depth (ft) |
1.5 |
5.6 |
8.0 |
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-16-99 |
6 |
240 |
. |
. |
|
Feb-07-99 |
7 |
230 |
1.0 |
4.0 |
|
Aug-21-99 |
13 |
260 |
2.3 |
6.1 |
|
Sep-15-99 |
14 |
210 |
3.0 |
6.6 |
|
Oct-22-99 |
12 |
220 |
3.0 |
7.1 |
|
|
|
|
|
|
|
1999 Average |
11 |
230 |
2.3 |
5.9 |