Broken Arrow (Volusia County)
Florida LAKEWATCH Water Chemistry Summary
Location: Latitude 28°51'56", Longitude 81°13'24"
Period of record: 120 sampling dates; January 15, 1988 to December 1, 1999
Surface area : No data available.
Lake Region (Griffith et al. 1997): Crescent City/DeLand Ridges
Geologic formation (Brooks 1981):
The geology is a mixture of two major types dominated by dune sand and shell with silty sand, silt, and clay of the Princess Ann Formation and coastal sand and shelly silty sand of the preglacial Pleistocene.
Physiographic region (Brooks 1981):
The water body lies in the St. John’s Offset division of the Central Lake District.
Long-term Florida LAKEWATCH Data
Numbers reported below are the minimum, average, and maximum value for the 120 months sampled:
|
|
Minimum |
Average |
Maximum |
|
Long-term total phosphorus concentrations (µg/L) |
1 |
6 |
12 |
|
Long-term total nitrogen concentrations (µg/L) |
70 |
280 |
500 |
|
Long-term total chlorophyll concentrations (µg/L) |
0.0 |
2.5 |
17.3 |
|
Long-term Secchi depth (ft) |
. |
. |
. |
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-05-99 |
8 |
310 |
3.0 |
. |
|
Feb-05-99 |
8 |
330 |
4.7 |
. |
|
Mar-01-99 |
10 |
320 |
6.0 |
. |
|
Apr-01-99 |
8 |
500 |
1.3 |
. |
|
May-01-99 |
7 |
490 |
2.3 |
. |
|
Jun-01-99 |
8 |
440 |
3.3 |
. |
|
Jul-01-99 |
6 |
420 |
3.3 |
. |
|
Aug-01-99 |
7 |
440 |
6.0 |
. |
|
Sep-02-99 |
9 |
500 |
6.0 |
. |
|
Oct-01-99 |
9 |
410 |
6.3 |
. |
|
Nov-01-99 |
10 |
470 |
5.0 |
. |
|
Dec-01-99 |
11 |
500 |
17.3 |
. |
|
|
|
|
|
|
|
1999 Average |
8 |
430 |
5.4 |
. |