lake okeechobee status lake okeechobee wrac committee david unsell, pe march 28, 2007
TRANSCRIPT
Lake Okeechobee Lake Okeechobee StatusStatus
Lake OkeechobeeLake OkeechobeeWRAC CommitteeWRAC Committee
Lake Okeechobee Lake Okeechobee StatusStatus
Lake OkeechobeeLake OkeechobeeWRAC CommitteeWRAC Committee
David Unsell, PEDavid Unsell, PE
March 28, 2007March 28, 2007
Water Quality – Total Suspended Water Quality – Total Suspended SolidsSolids
Lake Okeechobee Mean TSS
131
112
42
24
31
39
1913
7
22
3933 35
24
0
20
40
60
80
100
120
140
Jan
06
Feb
06
Mar
06
Ap
r 06
May 0
6
Ju
n 0
6
Ju
l 06
Au
g 0
6
Sep
06
Oct 06
No
v 0
6
Dec 0
6
Jan
07
Feb
07
month
mg
/L
Water Quality – Total PhosphorusWater Quality – Total PhosphorusLake Okeechobee Mean TPO4
305
292
207
170
188196
148
95102
140
165158 157
136
0
50
100
150
200
250
300
350Jan
06
Feb
06
Mar
06
Ap
r 06
May 0
6
Ju
n 0
6
Ju
l 06
Au
g 0
6
Sep
06
Oct 06
No
v 0
6
Dec 0
6
Jan
07
Feb
07
month
pp
b
Algal Blooms and ToxinsAlgal Blooms and Toxins
0
5
10
15
20
25
30M
ay
04
Ju
l 04
Se
p 0
4
No
v 0
4
Ja
n 0
5
Ma
r 0
5
Ma
y 0
5
Ju
l 05
Se
p 0
5
No
v 0
5
Ja
n 0
6
Ma
r 0
6
Ma
y 0
6
Ju
l 06
Se
p 0
6
No
v 0
6
Ja
n 0
7
Ma
r 0
7
Mic
roc
ys
tin
(u
g/L
)
0.0
10.0
20.0
30.0
40.0
50.0
60.0
Pre
vio
us m
on
ths C
hl a
(u
g/L
)
Hurricanes Frances and Jeanne
HurricaneWilma
Submerged Aquatic VegetationSubmerged Aquatic Vegetation
Monthly Submerged Aquatic Monthly Submerged Aquatic Vegetation Transect SamplingVegetation Transect Sampling
OBJECTIVES:OBJECTIVES:
To understand changes in To understand changes in SAV communities as they SAV communities as they relate to changes in water relate to changes in water level and transparencylevel and transparency
Submerged Aquatic VegetationSubmerged Aquatic VegetationTransect Sites
Number of Sites with Plants
6
1
0
1 1
0 0
1
13
15 15
3
10
7
4
0
2
4
6
8
10
12
14
16
Ja
n 0
6
Feb
06
Mar
06
Ap
r 06
May 0
6
Ju
n 0
6
Ju
l 06
Au
g 0
6
Se
p 0
6
Oct
06
No
v 0
6
Dec
06
Ja
n 0
7
Feb
07
Mar
07
Date
Nu
mb
er 5 Dry
Sites
3 Dry Sites
5 Dry Sites
Submerged Aquatic VegetationSubmerged Aquatic VegetationTransect Sites
Average Biomass
0
5
10
15
20
25
30
35
40Ja
n 0
4
Mar
04
May 0
4
Ju
l 04
Se
p 0
4
No
v 0
4
Ja
n 0
5
Mar
05
May 0
5
Ju
l 05
Se
p 0
5
No
v 0
5
Ja
n 0
6
Mar
06
May 0
6
Ju
l 06
Se
p 0
6
No
v 0
6
Ja
n 0
7
Mar0
7
Date
Bio
ma
ss
(g
dw
/m2
)
Hurricanes Francesand Jeanne
Hurricane Wilma
NS NSNS NS NSNSNS
< 0.02
Submerged Aquatic VegetationSubmerged Aquatic VegetationTransect Sites
SD:TD
0
00
00
10
13
27
32
12
18
14
2023
29
0
5
10
15
20
25
30
35
40
45
50
Jan
06
Feb
06
Mar
06
Ap
r 06
May 0
6
Ju
n 0
6
Ju
l 06
Au
g 0
6
Sep
06
Oct
06
No
v 0
6
Dec
06
Jan
07
Feb
07
Mar
07
Month
Nu
mb
er
of
SA
V S
ite
s V
isit
ed
SD:TD < 0.5 SD:TD > = 0.5
Dry Conditions Dry Conditions January 07
February 07
March 07
Exotic Vegetation Management Exotic Vegetation Management
In-Lake Restoration ProjectsIn-Lake Restoration Projects Provided cost share funds of $450,000 to the Provided cost share funds of $450,000 to the
City of Pahokee for Pahokee Harbor. City of Pahokee for Pahokee Harbor. Selected sites in and around the Clewiston lock Selected sites in and around the Clewiston lock
to plant native pond apple and cypress along the to plant native pond apple and cypress along the pass and rim canal spoil islands while pass and rim canal spoil islands while water levels are low. water levels are low.
Developed a Cooperative Agreement with the Developed a Cooperative Agreement with the Florida Freshwater Fish and Game Commission Florida Freshwater Fish and Game Commission to conduct sediment removal in the Cody's Cove to conduct sediment removal in the Cody's Cove area of the remnant organic berm on the NW area of the remnant organic berm on the NW marsh shoreline. marsh shoreline.
In discussions with the City of Belle Glade In discussions with the City of Belle Glade for navigational dredging and boat ramp for navigational dredging and boat ramp extensions in the Belle Glade marina extensions in the Belle Glade marina
Temporary Forward PumpsTemporary Forward Pumps
Notice to Proceed with installation was Notice to Proceed with installation was issued to Lucas Marine Construction on issued to Lucas Marine Construction on March 21, 2007March 21, 2007
April 4 the S351 pumps are ready to April 4 the S351 pumps are ready to operateoperate
April 11 the S354 pumps are ready to April 11 the S354 pumps are ready to operate operate
April 18 the S352 pumps are ready to April 18 the S352 pumps are ready to operate operate
Temporary Forward PumpsTemporary Forward Pumps
Denise Arrieta, Construction Project Denise Arrieta, Construction Project Manager, 561-719-7572.Manager, 561-719-7572.
Tim Carter, Construction Division Director, Tim Carter, Construction Division Director, 561-951-2543. 561-951-2543.
Cled Weldon, Engineering Department Cled Weldon, Engineering Department Director, 561-719-7573Director, 561-719-7573