stream monitoring of selected sub-watersheds of conesus lake
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Stream Monitoring of Selected Sub-watersheds of Conesus
Lake
North McMillanLong Point
Control Watersheds
Sutton Point
Graywood Sand Point
Experimental Watersheds
Cottonwood Southwest
Stream Monitoring Overview
• Discharge
• Water Chemistry
Combine Discharge and Chemistry to get Mass Losses from each Watershed
to Conesus Lake
Stream Monitoring Overview• Discharge
– Continually monitor stream level• combined with velocity and cross-sectional area
to calculate continuous discharge
• Water Chemistry– Phosphorus, Nitrogen, Suspended Solids, and
Sodium– Non-event conditions - weekly– Event conditions - as they occur
Cottonwood Cross Sectional Area Curve
y = 0.001523976x + 0.000001893R2 = 0.999999946
0.00
0.05
0.10
0.15
0.20
0.25
0.30
0.35
0 50 100 150 200 250
Level (mm)
Cro
ss S
ecti
on
al A
rea
(m2)
Cottonw ood Velocity Curve
y = 0.0045811x - 0.0925259R2 = 0.6909606
-0.2
0
0.2
0.4
0.6
0.8
1
1.2
1.4
0 50 100 150 200 250
Level (mm)
Vel
oci
ty (
m2/
s)
Cottonwood Raw Rating Curve
y = 0.000011x2 - 0.000755x + 0.018975R2 = 0.853220
0
0.05
0.1
0.15
0.2
0.25
0.3
0.35
0.4
0.45
0 50 100 150 200 250
Level (mm)
Dis
charg
e (
m3/
s)
Cottonwood Rating Curve
y = 0.000006985x2 - 0.000141730x + 0.000033697R2 = 0.999999744
0
0.05
0.1
0.15
0.2
0.25
0.3
0 50 100 150 200 250
Level (mm)
Reg
ressed
Dis
ch
arg
e (
m3/s
)
Overview to date:
• 16 months of continuous discharge, weekly baseline sampling on 7 streams
• 21 events sampled automatically• 714 Water samples delivered to the
laboratory• 4246 Water quality analyses completed• Data continuously disseminated via web
site
Year 1 ResultsAugust 2002 to August 2003
0%
25%
50%
75%
100%
Sou
thw
est
Long
Pt.
San
d P
t.
Cot
tonw
ood
Gra
ywoo
d
Nor
thM
cMill
an
Sut
ton
Discharge
Winter
Fall
Summer
Spring
Discharge
0
20,000
40,000
60,000
80,000
100,000
120,000
Long
Pt.
N.
McM
illan
Sut
ton
Sou
thw
est
San
d P
t.
Cot
tonw
ood
Gra
ywoo
d
m3/
d
Discharge
0
10
20
30
40
50
60
Long
Pt.
N.
McM
illan
Sut
ton
Sou
thw
est
San
d P
t.
Cot
tonw
ood
Gra
ywoo
d
m3/
ha/
d
Discharge
0
25
50
75
100Lo
ng P
t.
N.M
cMill
an
Sut
ton
Sou
thw
est
San
d P
t.
Cot
tonw
ood
Gra
ywoo
d
Per
cen
t
Baseline
Event
0
200
400
600
800
1000
1200
1400
Long
Poi
nt
Sut
ton
N.
McM
illan
Gra
ywoo
d
San
d P
t.
Cot
tonw
ood
Sou
thw
est
TP
(µ
g P
/L)
Baseline
Event
0
2
4
6
8
10
12
14
16
Long
Poi
nt
Sut
ton
N.
McM
illan
Gra
ywoo
d
San
d P
t.
Cot
tonw
ood
Sou
thw
est
Nit
rate
(m
g N
/L)
Baseline
Event
0
500
1000
1500
2000
2500
3000
3500
4000
4500
Long
Poi
nt
Sut
ton
N.
McM
illan
Gra
ywoo
d
San
d P
t.
Cot
tonw
ood
Sou
thw
est
TK
N (
µg
N/L
)
Baseline
Event
0
100
200
300
400
500
600
700
800
900
Long
Poi
nt
Sut
ton
N.
McM
illan
Gra
ywoo
d
San
d P
t.
Cot
tonw
ood
Sou
thw
est
TS
S (
mg
/L)
Baseline
Event
0.00
0.10
0.20
0.30
0.40
0.500.60
0.70
0.80
0.90
1.00
Long
Pt.
N.
McM
illan
Sut
ton
Sou
thw
est
San
d P
t.
Cot
tonw
ood
Gra
ywoo
d
g/h
a/d TP
SRP
0
100
200
300
400
500
600
700
Long
Pt.
N.
McM
illan
Sut
ton
Sou
thw
est
San
d P
t.
Cot
tonw
ood
Gra
ywoo
d
kg/d TP
SRP
Nitrate
0.00
10.00
20.00
30.00
40.00
50.00
60.00
70.00
Long
Pt.
N.
McM
illan
Sut
ton
Sou
thw
est
San
d P
t.
Cot
tonw
ood
Gra
ywoo
d
g/h
a/d
TKN
0.00
1.00
2.00
3.00
4.00
5.00
6.00
7.00
8.00
Long
Pt.
N.
McM
illan
Sut
ton
Sou
thw
est
San
d P
t.
Cot
tonw
ood
Gra
ywoo
d
g/h
a/d
TSS
0100200300400500600700800900
1000
Long
Pt.
N.
McM
illan
Sut
ton
Sou
thw
est
San
d P
t.
Cot
tonw
ood
Gra
ywoo
d
g/h
a/d
Graywood Baseline Chemistry
0
100
200
300
400
500
600
700
800
900
TP NO3 TSS TKN Na SRP
2002
2003
N. McMillan Baseline Chemistry
0
50
100
150
200
250
300
TP NO3 TSS TKN Na SRP
2002
2003
Initial attempts at BMP EvaluationsSeptember to December for each year
Graywood Baseline
0
200
400
600
800
1000
1200
1400
1600
5/24/2002 9/1/2002 12/10/2002 3/20/2003 6/28/2003 10/6/2003 1/14/2004 4/23/2004
TP
(µ
g P
/L)
Graywood Baseline
0
500
1000
1500
2000
2500
5/24/2002 9/1/2002 12/10/2002 3/20/2003 6/28/2003 10/6/2003 1/14/2004 4/23/2004
TK
N (
µg
N/L
)
Graywood Events
0102030405060708090
100
0 5000 10000 15000 20000 25000 30000
Discharge (m3)
TP
(kg
)
Year 1
Year2
Graywood Events
0
10
20
30
40
50
60
70
0 5000 10000 15000 20000 25000 30000
Discharge (m3)
TK
N (
kg)
Year 1
Year2
Graywood Events
0
2
4
6
8
10
12
0 5000 10000 15000 20000 25000 30000
Discharge (m3)
SR
P (
kg)
Year 1
Year2
Graywood Events
0
50
100
150
200
250
300
350
400
450
0 5000 10000 15000 20000 25000 30000
Discharge (m3)
Nit
rate
(kg
) Year 1
Year2
Linear (Year 1)
Linear (Year2)
Graywood events
0.0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
9/1/2002 10/21/2002 12/10/2002 1/29/2003 3/20/2003 5/9/2003 6/28/2003 8/17/2003 10/6/2003 11/25/2003 1/14/2004
TP
(kg
/m3
x 10
00)
Graywood events
0.0
5.0
10.0
15.0
20.0
25.0
30.0
35.0
40.0
9/1/2002 10/21/2002 12/10/2002 1/29/2003 3/20/2003 5/9/2003 6/28/2003 8/17/2003 10/6/2003 11/25/2003 1/14/2004
Nit
rate
(k
g/m
3 x
10
00
)
Graywood events
0.0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
9/1/2002 10/21/2002 12/10/2002 1/29/2003 3/20/2003 5/9/2003 6/28/2003 8/17/2003 10/6/2003 11/25/2003 1/14/2004
SR
P (
kg
/m3
x 1
00
0)
Conclusions
• Rating curves in place for the 7 streams• Year 1 discharge and loading summarized• Stream monitoring to continue• The year 1 data is low – may be troublesome• Begin to build tools to evaluate the impact of the
implementation of BMP’s• More data / time is needed to evaluate the success
of the BMP’s
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