St. Andrew Bay (Bay County)
Florida LAKEWATCH Water Chemistry Summary
Location: Latitude 30°8'25", Longitude 85°41'37"
Period of record: 48 sampling dates; February 11, 1990 to December 12, 1999
Surface area : No data available.
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 Delta Plain and the Coastal Strip divisions of the Apalachicola Delta District.
Long-term Florida LAKEWATCH Data
Numbers reported below are the minimum, average, and maximum value for the 48 months sampled:
|
|
Minimum |
Average |
Maximum |
|
Long-term total phosphorus concentrations (µg/L) |
7 |
15 |
42 |
|
Long-term total nitrogen concentrations (µg/L) |
130 |
300 |
640 |
|
Long-term total chlorophyll concentrations (µg/L) |
1.1 |
3.4 |
16.7 |
|
Long-term Secchi depth (ft) |
4.0 |
12.5 |
19.1 |
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 |
|
Jun-13-99 |
23 |
340 |
3.7 |
7.2 |
|
Sep-12-99 |
29 |
390 |
6.3 |
5.8 |
|
Dec-12-99 |
16 |
410 |
3.0 |
. |
|
|
|
|
|
|
|
1999 Average |
22 |
380 |
4.3 |
6.5 |