Spokane River Basin Monitoring

Spokane Basin Monitoring

Ecology River and Stream Water Quality Monitoring

• http://www.ecy.wa.gov/programs/eap/fw_riv/rv_main.html

Ecology’s EIM database:https://fortress.wa.gov/ecy/eimreporting/Search.asp?Type=StudyName

Major Tributaries Total Phosphorus

Hangman Creek Little Spokane River

Feb-May June July-Oct0

0.05

0.1

0.15

0.2

0.25

1973-20012002-2011target concentration

mg/

L Pho

spho

rus

Feb-May June July-Oct0

0.01

0.02

0.03

0.04

0.05

0.06

1973-20012002-2011target concentration

mg/

L Pho

spho

rus

Hangman Creek flows 2001 v 2011

2001 2011

Little Spokane River Flows 2001 v 2011

20012011

2010 Flow Weighted Phosphorus

Feb Mar Apr May Jun Jul Aug Sep0

0.005

0.01

0.015

0.02

0.025

0.03

0.035

0.04

0.045

flow weighted TP

Benchmark

mg/

L Pho

spho

rus

Flow weighted average of Spokane River@ 9 Mileand Little Spokane River @ mouth

Spokane River Flow May 2010- Oct 2012

2010 Lake Spokane Profiles @ LL0

June 1 August 300 20 40 60 80 100 120

10.0 30.0 50.0 70.0 90.0 110.0

0

5

10

15

20

25

30

35

40

45

0

5

10

15

20

25

30

35

40

45

TemppHDO (raw)Winkler DOCond

Temp. Deg C, pH, DO mg/L

Dept

h, m

Conductivity, us/cm

0 50 100 150 200 250

0 50 100 150 200 250

0

5

10

15

20

25

30

35

40

45

50

0

5

10

15

20

25

30

35

40

45

50

temppHDOWinkler DOCond

Temp. deg C, pH, DO mg/L

Conductivity, us/cm

2011 Lake Spokane Profiles @ LL0

June 6 August 22

5 7 9 11 13 15 17 19 21 23 25

0 20 40 60 80 100 120

0

10

20

30

40

50

60

0

2

4

6

8

10

12

TemppHDOWinkler DOCond

Temp. deg C, pH, DO mg/L

Conductivity, us/cm

0 50 100 150 200 250

0 50 100 150 200 250

0

5

10

15

20

25

30

35

40

45

50

0

5

10

15

20

25

30

35

40

45

50

TemppHDOWinkler DOCond

Temp. deg C, pH, DO mg/L

Conductivity, us/cm