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
