Asbury North (Clay County)
Florida LAKEWATCH Water Chemistry Summary
Location: Latitude 30°3'29", Longitude 81°49'8"
Period of record: 68 sampling dates; May 26, 1993 to October 10, 1999
Surface area : No data available.
Lake Region (Griffith et al. 1997): Eastern Flatlands
Geologic formation (Brooks 1981):
The geology is dominated by Jacksonville Limestone, sandy to clayey nonphosphatic, soft to very hard limestone, moldic where fossil beds are associated with medium to coarse sand.
Physiographic region (Brooks 1981):
The water body lies in the Black Creek Basin subdivision of the Duval Upland division of the Sea Island District.
Supplemental, unpublished water chemistry data, University of Florida.
Numbers reported below are the average for 1 month sampled:
Long-term Florida LAKEWATCH Data
Numbers reported below are the minimum, average, and maximum value for the 68 months sampled:
|
|
Minimum |
Average |
Maximum |
|
Long-term total phosphorus concentrations (µg/L) |
7 |
16 |
26 |
|
Long-term total nitrogen concentrations (µg/L) |
260 |
410 |
660 |
|
Long-term total chlorophyll concentrations (µg/L) |
1.0 |
4.9 |
28.0 |
|
Long-term Secchi depth (ft) |
5.3 |
9.0 |
14.7 |
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-09-99 |
17 |
500 |
2.3 |
12.0 |
|
Feb-07-99 |
22 |
460 |
3.3 |
10.0 |
|
Apr-11-99 |
19 |
410 |
2.3 |
10.0 |
|
May-16-99 |
17 |
260 |
2.7 |
11.0 |
|
Jun-10-99 |
16 |
320 |
3.3 |
11.0 |
|
Jul-11-99 |
18 |
420 |
5.0 |
9.0 |
|
Aug-07-99 |
19 |
470 |
4.7 |
11.0 |
|
Sep-19-99 |
25 |
380 |
. |
7.0 |
|
Oct-10-99 |
26 |
470 |
6.7 |
7.0 |
|
|
|
|
|
|
|
1999 Average |
20 |
410 |
3.8 |
9.8 |
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