Griffin North (Lake County)
Florida LAKEWATCH Water Chemistry Summary
Location: Latitude 28°54'9", Longitude 81°50'31"
Period of record: 25 sampling dates; May 18, 1995 to December 24, 1999
Surface area (Shafer et al. 1986): No data available.
Lake Region (Griffith et al. 1997): Central Valley
Geologic formation (Brooks 1981):
The geology is dominated by deeply weathered clayey sand and granular sand of the Hawthorne Formation.
Physiographic region (Brooks 1981):
The water body lies in the Central Lakes division of the Central Lake District.
Long-term Florida LAKEWATCH Data
Numbers reported below are the minimum, average, and maximum value for the 25 months sampled:
|
|
Minimum |
Average |
Maximum |
|
Long-term total phosphorus concentrations (µg/L) |
43 |
95 |
134 |
|
Long-term total nitrogen concentrations (µg/L) |
2160 |
3650 |
4960 |
|
Long-term total chlorophyll concentrations (µg/L) |
31.0 |
230.0 |
401.3 |
|
Long-term Secchi depth (ft) |
0.6 |
1.1 |
2.9 |
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-12-99 |
100 |
3860 |
238.0 |
0.8 |
|
Feb-11-99 |
114 |
4080 |
320.7 |
0.8 |
|
Mar-07-99 |
119 |
4490 |
285.3 |
0.8 |
|
Apr-12-99 |
125 |
4960 |
380.3 |
0.8 |
|
May-30-99 |
128 |
4870 |
401.3 |
0.6 |
|
Jun-10-99 |
112 |
4550 |
367.3 |
0.8 |
|
Jul-05-99 |
72 |
3810 |
230.7 |
1.4 |
|
Aug-10-99 |
82 |
4780 |
303.3 |
0.8 |
|
Sep-25-99 |
73 |
4100 |
223.3 |
0.8 |
|
Oct-19-99 |
82 |
4190 |
242.3 |
0.8 |
|
Nov-08-99 |
77 |
3850 |
211.0 |
0.8 |
|
Dec-24-99 |
134 |
3350 |
219.0 |
0.8 |
|
|
|
|
|
|
|
1999 Average |
101 |
4240 |
285.2 |
0.8 |