Lett (Gadsden County)
Florida LAKEWATCH Water Chemistry Summary
Location: Latitude 30°30'31", Longitude 84°25'37"
Period of record: 4 sampling dates; September 28, 1999 to December 20, 1999
Surface area : No data available.
Lake Region (Griffith et al. 1997): Tifton/Tallahassee Uplands
Geologic formation (Brooks 1981):
The geology is dominated by clayey sand and clay with sandy to clayey limestone of the Hawthorne Formation.
Physiographic region (Brooks 1981):
The water body lies in the Quincy Hills division of the Tifton Uplands District.
Supplemental, unpublished water chemistry data, University of Florida.
Numbers reported below are the average for 1 month sampled:
|
pH |
6.8 |
Total alkalinity (mg/L as CaCO3) |
12.0 |
|
Conductance (µS/cm @ 25 °C) |
50 |
Color (Pt-Co units) |
20 |
|
Chloride (mg/L) |
6.5 |
|
|
Long-term Florida LAKEWATCH Data
Numbers reported below are the minimum, average, and maximum value for the 4 months sampled:
|
|
Minimum |
Average |
Maximum |
|
Long-term total phosphorus concentrations (µg/L) |
21 |
41 |
69 |
|
Long-term total nitrogen concentrations (µg/L) |
510 |
570 |
750 |
|
Long-term total chlorophyll concentrations (µg/L) |
6.0 |
10.3 |
16.7 |
|
Long-term Secchi depth (ft) |
5.3 |
5.4 |
5.5 |
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 |
|
Sep-28-99 |
35 |
520 |
16.7 |
5.3 |
|
Oct-13-99 |
21 |
520 |
6.0 |
5.3 |
|
Nov-24-99 |
38 |
510 |
9.0 |
5.5 |
|
Dec-20-99 |
69 |
750 |
9.3 |
5.3 |
|
|
|
|
|
|
|
1999 Average |
41 |
570 |
10.2 |
5.4 |