rice creek chain of lakes tmdl. peltier lake total phosphorus monitoring data
TRANSCRIPT
RICE CREEK CHAIN OF RICE CREEK CHAIN OF LAKES TMDLLAKES TMDLRICE CREEK CHAIN OF RICE CREEK CHAIN OF LAKES TMDLLAKES TMDL
PELTIER LAKE TOTAL PELTIER LAKE TOTAL PHOSPHORUS MONITORING PHOSPHORUS MONITORING DATADATA
PELTIER LAKE TOTAL PELTIER LAKE TOTAL PHOSPHORUS MONITORING PHOSPHORUS MONITORING DATADATA
19
90
19
91
19
94
19
95
19
96
19
97
19
98
19
99
20
00
20
01
20
02
20
04
20
06Year
-100
0
100
200
300
400
500
600
700
800
900
GS
M s
urfa
ce
TP
(μ
g/l)
Mean Mean +/- 95% Conf. Inte rva l
Nutrien t C rite ria = 60 μg /l
PELTIER LAKE TOTAL PELTIER LAKE TOTAL PHOSPHORUS MONITORING PHOSPHORUS MONITORING DATA, 2006 outlier removedDATA, 2006 outlier removed
PELTIER LAKE TOTAL PELTIER LAKE TOTAL PHOSPHORUS MONITORING PHOSPHORUS MONITORING DATA, 2006 outlier removedDATA, 2006 outlier removed
19
90
19
91
19
94
19
95
19
96
19
97
19
98
19
99
20
00
20
01
20
02
20
04
20
06Year
-50
0
50
100
150
200
250
300
350
400
GS
M s
urfa
ce
TP
(μ
g/l)
Mean Mean +/- 95% Conf. Inte rva l
Nutrien t C rite ria = 60 μg /l
PELTIER LAKE CHOLORPHYLL PELTIER LAKE CHOLORPHYLL MONITORING DATAMONITORING DATAPELTIER LAKE CHOLORPHYLL PELTIER LAKE CHOLORPHYLL MONITORING DATAMONITORING DATA
1990 1991 1994 1995 1996 1997 1998 1999 2000 2001 2002 2004 2006
Year
-20
0
20
40
60
80
100
120
140
160
180
200
220
240
GS
M s
urfa
ce
ch
lor-a
(μ
g/l)
Mean Mean +/- 95% Conf. Inte rva l
Nutrien t C rite ria = 20 μg /l
PELTIER LAKE SECCHI DEPTH PELTIER LAKE SECCHI DEPTH MONITORING DATAMONITORING DATAPELTIER LAKE SECCHI DEPTH PELTIER LAKE SECCHI DEPTH MONITORING DATAMONITORING DATA
1990 1991 1994 1995 1996 1997 1998 1999 2000 2001 2002 2004 2006
Year
0 .0
0 .2
0 .4
0 .6
0 .8
1 .0
1 .2
1 .4
1 .6
1 .8
2 .0
2 .2
2 .4
2 .6G
SM
Se
cch
i de
pth
(m)
Mean Mean +/- 95% Conf. Inte rva l
Nutrien t C rite ria = 1 .0 m
PELTIER LAKEPELTIER LAKEPELTIER LAKEPELTIER LAKE
1991 – 2006, growing season
0 200 400 600 800 1000 1200 1400 1600 1800
Total Phosphorus (μg/l)
0
100
200
300
400
500
600
Ch
loro
ph
yll-a
(μ
g/l)
0 100 200 300 400 500 600
Chlorophyll-a (μg/l)
0 .0
0 .5
1 .0
1 .5
2 .0
2 .5
3 .0
Se
cch
i De
pth
(m)
PELTIER LAKE DISSOLVED PELTIER LAKE DISSOLVED OXYGENOXYGENPELTIER LAKE DISSOLVED PELTIER LAKE DISSOLVED OXYGENOXYGEN
D issolvedoxygen (mg/L):
12 11 10 9 8 7 6 5
19
-Ap
r-90
30
-Ma
y-90
25
-Jun
-90
27
-Jul-9
0
22
-Au
g-9
0
26
-Se
p-9
0
15
-No
v-90
21
-Jan
-91
13
-Ma
r-91
Date
0 .0
0 .5
1 .0
1 .5
2 .0
2 .5
3 .0
3 .5
4 .0
4 .5
De
pth
(m)
PELTIER LAKE TOTAL PELTIER LAKE TOTAL PHOSPHORUS - SURFACE VS PHOSPHORUS - SURFACE VS BOTTOMBOTTOM
PELTIER LAKE TOTAL PELTIER LAKE TOTAL PHOSPHORUS - SURFACE VS PHOSPHORUS - SURFACE VS BOTTOMBOTTOM
DateT
P (
μg
/l)
4 /13 /065 /3 /06
5 /23 /066 /12 /06
7 /2 /067 /22 /06
8 /11 /068 /31 /06
9 /20 /0610 /10 /06
0
200
400
600
800
1000
1200
1400
1600
1800
Surface (0 .5 m)Bottom (4 m)
CENTERVILLE LAKE TOTAL CENTERVILLE LAKE TOTAL PHOSPHORUS MONITORING PHOSPHORUS MONITORING DATADATA
CENTERVILLE LAKE TOTAL CENTERVILLE LAKE TOTAL PHOSPHORUS MONITORING PHOSPHORUS MONITORING DATADATA
2000 2001 2003 2004 2006
Year
20
30
40
50
60
70
80
90
100
110
GS
M s
urfa
ce
TP
(μ
g/l)
Mean Mean +/- 95% Conf. Inte rva l
Nutrien t C rite ria = 40 μ g /l
CENTERVILLE LAKE CENTERVILLE LAKE CHOLORPHYLL MONITORING CHOLORPHYLL MONITORING DATADATA
CENTERVILLE LAKE CENTERVILLE LAKE CHOLORPHYLL MONITORING CHOLORPHYLL MONITORING DATADATA
2000 2001 2003 2004 2006
Year
10
20
30
40
50
60
70
80
90
GS
M s
urfa
ce
ch
lor-a
(μ
g/l)
Mean Mean +/- 95% Conf. Inte rva l
Nutrien t C rite ria = 14 μ g /l
CENTERVILLE LAKE SECCHI CENTERVILLE LAKE SECCHI DEPTH MONITORING DATADEPTH MONITORING DATACENTERVILLE LAKE SECCHI CENTERVILLE LAKE SECCHI DEPTH MONITORING DATADEPTH MONITORING DATA
2000 2001 2003 2004 2006
Year
0 .2
0 .4
0 .6
0 .8
1 .0
1 .2
1 .4
1 .6
1 .8
2 .0
2 .2G
SM
Se
cch
i de
pth
(m)
Mean Mean +/- 95% Conf. Inte rva l
Nutrien t C rite ria = 1 .4 m
CENTERVILLE LAKECENTERVILLE LAKECENTERVILLE LAKECENTERVILLE LAKE
2000 – 2006, growing season
0 20 40 60 80 100 120 140 160 180
Total Phosphorus (μg/l)
0
10
20
30
40
50
60
70
80
90
100
Ch
loro
ph
yll-a
(μ
g/l)
0 10 20 30 40 50 60 70 80 90 100
Chlorophyll-a (μg/l)
0 .0
0 .5
1 .0
1 .5
2 .0
2 .5
3 .0
Se
cc
hi
De
pth
(m
)
CENTERVILLE LAKE DISSOLVED CENTERVILLE LAKE DISSOLVED OXYGENOXYGENCENTERVILLE LAKE DISSOLVED CENTERVILLE LAKE DISSOLVED OXYGENOXYGEN
12 10 8 6 4
2-M
ay-0
1
17
-Ma
y-01
29
-Ma
y-01
7-Ju
n-0
1
25
-Jun
-01
12
-Jul-0
1
23
-Jul-0
1
8-A
ug
-01
15
-Au
g-0
1
28
-Au
g-0
1
11
-Se
p-0
1
27
-Se
p-0
1
17
-Oct-0
1
Date
0
1
2
3
4
5
De
pth
(m)
CENTERVILLE LAKE TOTAL CENTERVILLE LAKE TOTAL PHOSPHORUS - SURFACE VS PHOSPHORUS - SURFACE VS BOTTOMBOTTOM
CENTERVILLE LAKE TOTAL CENTERVILLE LAKE TOTAL PHOSPHORUS - SURFACE VS PHOSPHORUS - SURFACE VS BOTTOMBOTTOM
DateT
P (
μg
/l)
13-Apr-063-M ay-06
23-M ay-0612-Jun-06
2-Ju l-0622-Jul-06
11-Aug-0631-Aug-06
20-Sep-0610-O ct-06
0
20
40
60
80
100
120
Surface (0 .5 m)Bottom (4 m)
IN-LAKE MODELINGIN-LAKE MODELINGIN-LAKE MODELINGIN-LAKE MODELING
Bathtub: Reservoir water quality model developed by Bathtub: Reservoir water quality model developed by the U.S. Army Corps of Engineersthe U.S. Army Corps of Engineers
Includes models for TP, chlorophyll-a, and Secchi Includes models for TP, chlorophyll-a, and Secchi transparencytransparency
Steady-state water and nutrient balance calculations in Steady-state water and nutrient balance calculations in a spatially segmented hydraulic network; accounts for a spatially segmented hydraulic network; accounts for advective and diffusive transport and nutrient advective and diffusive transport and nutrient sedimentationsedimentation
MODEL STRUCTUREMODEL STRUCTUREMODEL STRUCTUREMODEL STRUCTURE
Peltier LakeCenterville Lake
Upper Rice Creek
ClearwaterCreek
Peltier direct drainage
HardwoodCreek
Centerville direct drainageDirect
precip
Directprecip
Internal
Internal
PRECIPITATIONPRECIPITATIONPRECIPITATIONPRECIPITATION
0
5
10
15
20
25
30
35
40
45
1998 1999 2000 2001 2002 2003 2004 2005 2006 2007
Year
Pre
cip
(in
)
Jun - Sept
Annual
MODEL SELECTIONMODEL SELECTIONMODEL SELECTIONMODEL SELECTION
Phosphorus: Canfield & Bachman, lakes (option 8)Phosphorus: Canfield & Bachman, lakes (option 8)
Chlorophyll-a: P, light, T (option 2)Chlorophyll-a: P, light, T (option 2)
Secchi transparency: vs. Chl-a and turbidity (option 1) Secchi transparency: vs. Chl-a and turbidity (option 1)
MODEL CALIBRATIONMODEL CALIBRATIONMODEL CALIBRATIONMODEL CALIBRATION
Phosphorus calibration coefficient - adjusted from 1.0 Phosphorus calibration coefficient - adjusted from 1.0 to 0.6 for Peltier Laketo 0.6 for Peltier Lake
Chlorophyll-a calibration coefficient - adjusted from 1.0 Chlorophyll-a calibration coefficient - adjusted from 1.0 to 1.5 for both Peltier and Centerville Lakes to 1.5 for both Peltier and Centerville Lakes
Internal loading rate adjusted to further calibrate modelInternal loading rate adjusted to further calibrate model
INTERNAL LOADINGINTERNAL LOADINGINTERNAL LOADINGINTERNAL LOADING
Sediment dataSediment data
CALIBRATION - 2001CALIBRATION - 2001CALIBRATION - 2001CALIBRATION - 2001
0
50
100
150
200
250
300
350
400
Centerville Peltier
TP
(µ
g/L
) +
/- S
E
Observed Predicted
0
50
100
150
200
250
Centerville Peltier
Ch
l-a
(µ
g/L
) +
/- S
E
Observed Predicted
0.00.20.40.60.81.01.21.41.61.8
Centerville Peltier
Se
cc
hi (
m)
+/-
SE
Observed Predicted
VALIDATION - 2004VALIDATION - 2004VALIDATION - 2004VALIDATION - 2004
0
50
100
150
200
250
300
350
400
Centerville Peltier
TP
(µ
g/L
) +
/- S
E
Observed Predicted
0
20
40
60
80
100
120
140
160
Centerville Peltier
Ch
l-a
(µ
g/L
) +
/- S
E
Observed Predicted
0.0
0.2
0.4
0.6
0.8
1.0
1.2
1.4
Centerville Peltier
Se
cc
hi (
m)
+/-
SE
Observed Predicted
PELTIER LAKE TP LOADSPELTIER LAKE TP LOADSPELTIER LAKE TP LOADSPELTIER LAKE TP LOADS
Up
pe
r R
ice
Cre
ek
Ha
rdw
oo
d C
ree
k
Cle
arw
ate
r C
ree
k
Ce
nte
rvill
e
Dir
ect
dra
ina
ge
Pre
cip
itatio
n
Inte
rna
l0
200
400
600
800
1 ,000
1 ,200
1 ,400
1 ,600
1 ,800
2 ,000
2 ,200
2 ,400
2 ,600
TP
Lo
ad
, 2
001
/200
4 A
ve
rag
eG
row
ing
Sea
so
n (
kg
)
0%
10%
20%
30%
40%
50%
TP
Lo
ad
Pe
rce
nt
Co
ntr
ibu
tio
n (
%)
Watershed loads represent 48% of total load
CENTERVILLE LAKE TP LOADSCENTERVILLE LAKE TP LOADSCENTERVILLE LAKE TP LOADSCENTERVILLE LAKE TP LOADS
W atershed Prec ipita tion Inte rna l0
10
20
30
40
50
60
70
80
TP
Lo
ad,
20
01/2
004
Av
era
ge
Gro
win
g S
eas
on
(kg
)
0%
10%
20%
30%
40%
50%
60%
70%
TP
Lo
ad P
erc
en
t C
on
trib
uti
on
(%
)