Duck (Leon County)
Florida LAKEWATCH Water Chemistry Summary
Location: Latitude 30°30'42", Longitude 84°21'26"
Period of record: 2 sampling dates; February 27, 1999 to March 17, 1999
Surface area : No data available.
Lake Region (Griffith et al. 1997): Tifton/Tallahassee Uplands
Geologic formation (Brooks 1981):
The geology is dominated by granular sand and clayey sand with some clay lenses of the Hawthorne Formation.
Physiographic region (Brooks 1981):
The water body lies in the Tallahassee Red Hills subdivision of the State Line Hills division of the Ocala Uplift District.
Supplemental, unpublished water chemistry data, University of Florida.
Numbers reported below are the average for 1 month sampled:
|
pH |
5.1 |
Total alkalinity (mg/L as CaCO3) |
0.4 |
|
Conductance (µS/cm @ 25 °C) |
32 |
Color (Pt-Co units) |
93 |
|
Chloride (mg/L) |
10.0 |
|
|
Long-term Florida LAKEWATCH Data
Numbers reported below are the minimum, average, and maximum value for the 2 months sampled:
|
|
Minimum |
Average |
Maximum |
|
Long-term total phosphorus concentrations (µg/L) |
29 |
40 |
50 |
|
Long-term total nitrogen concentrations (µg/L) |
610 |
830 |
1040 |
|
Long-term total chlorophyll concentrations (µg/L) |
12.3 |
15.8 |
19.3 |
|
Long-term Secchi depth (ft) |
1.8 |
2.5 |
3.2 |
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 |
|
Feb-27-99 |
29 |
610 |
12.3 |
3.1 |
|
Mar-17-99 |
50 |
1040 |
19.3 |
1.8 |
|
|
|
|
|
|
|
1999 Average |
40 |
830 |
15.8 |
2.5 |