Alford Arm (Leon County)

Florida LAKEWATCH Water Chemistry Summary

Location: Latitude 30°26'41", Longitude 84°9'7"

Period of record: 9 sampling dates; March 20, 1999 to December 19, 1999

Surface area : No data available.

Lake Region (Griffith et al. 1997): Tifton/Tallahassee Uplands

Geologic formation (Brooks 1981):

The geology is dominated by phosphatic sand, silty sand, and clay of the Hawthorne Formation.

Physiographic region (Brooks 1981):

The water body lies in the Tallahassee Red Hills subdivision of the State Line Hills division of the Ocala Uplift District.

 

Long-term Florida LAKEWATCH Data

Numbers reported below are the minimum, average, and maximum value for the 9 months sampled:

 

Minimum

Average

Maximum

Long-term total phosphorus concentrations (µg/L)

24

45

74

Long-term total nitrogen concentrations (µg/L)

550

850

1280

Long-term total chlorophyll concentrations (µg/L)

8.7

31.0

93.7

Long-term Secchi depth (ft)

1.8

2.9

4.0

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

Mar-20-99

25

640

8.7

4.0

Apr-25-99

26

680

9.0

3.0

Jun-05-99

24

620

11.7

.

Jul-07-99

26

550

10.3

3.3

Aug-21-99

68

1150

30.3

1.8

Sep-18-99

55

940

76.0

.

Oct-25-99

61

1090

93.7

.

Nov-27-99

74

710

10.3

.

Dec-19-99

44

1280

29.3

2.2

 

 

 

 

 

1999 Average

45

850

31.0

2.9

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