Black Creek (Walton County)
Florida LAKEWATCH Water Chemistry Summary
Location: Latitude 30°26'52", Longitude 86°4'46"
Period of record: 5 sampling dates; July 21, 1999 to December 15, 1999
Surface area : No data available.
Lake Region (Griffith et al. 1997): Gulf Coast Lowlands
Geologic formation (Brooks 1981):
The geology is dominated by fine sand and silt with lenses of gravel and clay of the Apalachicola paleo-cuspate delta and alluvial plain.
Physiographic region (Brooks 1981):
The water body lies in the Delta Plain 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Supplemental, unpublished water chemistry data, University of Florida.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 |
5.1 |
Total alkalinity (mg/L as CaCO3) |
0.0 |
|
Conductance (µS/cm @ 25 °C) |
36 |
Color (Pt-Co units |
173 |
|
Chloride (mg/L) |
12.0 |
|
|
Long-term Florida LAKEWATCH Data
Numbers reported below are the minimum, average, and maximum value for the 5 months sampled:
|
|
Minimum |
Average |
Maximum |
|
Long-term total phosphorus concentrations (µg/L) |
8 |
12 |
22 |
|
Long-term total nitrogen concentrations (µg/L) |
190 |
310 |
410 |
|
Long-term total chlorophyll concentrations (µg/L) |
1.0 |
4.8 |
10.7 |
|
Long-term Secchi depth (ft) |
2.4 |
4.2 |
6.3 |
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 |
|
Jul-21-99 |
14 |
410 |
3.7 |
2.4 |
|
Aug-10-99 |
22 |
410 |
10.7 |
3.0 |
|
Sep-19-99 |
9 |
260 |
6.0 |
4.0 |
|
Nov-21-99 |
8 |
190 |
1.0 |
5.3 |
|
Dec-15-99 |
9 |
250 |
2.7 |
6.3 |
|
|
|
|
|
|
|
1999 Average |
12 |
310 |
4.8 |
4.2 |