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