PDFWAC 173-522-020

Establishment of base flows.

(1) Base flows are established for stream management units with monitoring to take place at certain control stations as follows:
STREAM MANAGEMENT UNIT INFORMATION
Control Station No.
Stream Management
Unit Name
Control Station by
River Mile and Section,
Township and Range
Affected Stream
Reach Including
Tributaries
12.0200.00
Chehalis River
Conf. w/Elk Creek
101.8
14-13-5W
From confluence with Elk Creek to headwaters except Elk Cr.
12.0205.00
Elk Creek
2.5
18-13-5W
From confluence with Chehalis River to headwaters.
12.0216.30
So. Fork
Chehalis R.
0.3
24-13-4W
From mouth to headwaters.
12.0235.00
Chehalis River
77.6
2-13-3W
From confluence with Newaukum River to confluence with Elk Cr., excluding Elk Creek, and Newaukum Rivers.
12.0240.00
S. Fork
Newaukum R.
22.8
28-13-1E
From confluence with Lost Creek to headwaters, excluding Lost Creek.
12.0245.00
N. Fork Newaukum
River
6.6
35-14-1W
From mouth to headwaters.
12.0250.00
Newaukum River
4.1
9-13-2W
From mouth to confluence with Lost Cr. on S. Fork Newaukum River, excluding N. Fork Newaukum River.
12.0253.00
Salzer Creek
3.8
22-14-2W
From mouth to headwaters.
12.0264.00
Skookumchuck River
6.4
12-15-2W
From mouth to headwaters.
12.0275.00
Chehalis River at
Grand Mound
59.9
22-15-3W
From confluence with Newaukum River to confluence with Prairie Creek.
12.0292.00
Black River
4.1
33-16-4W
From mouth to headwaters.
12.0305.00
Cedar Creek
1.1
14-16-5W
From mouth to headwaters.
12.0309.00
Porter Creek
1.3
22-17-5W
From mouth to headwaters.
12.0310.00
Chehalis River at Porter
33.3
28-17-5W
From confluence with Prairie Creek near Grand Mound to confluence with Porter Creek including Prairie Creek.
12.0325.00
Cloquallum Creek
1.9
36-18-6W
From mouth to headwaters.
12.0342.00
East Fk. Satsop R.
15.9
15-19-6W
From confluence with Dry Run Cr. to headwaters excluding Dry Run Cr.
12.0343.00
Decker Creek
0.3
31-19-6W
From mouth to headwaters.
12.0345.00
Middle Fk.
Satsop R.
0.4
36-19-7W
From mouth to headwaters.
12.0350.00
Satsop River
2.3
36-18-7W
From mouth to confl. with Dry Run Cr. on East Fk. Satsop R.
12.0350.02
Chehalis R. below
confl. w/Satsop R.
20.0
7-17-6W
From confluence with Porter Ck. to just below confl. with Satsop River.
12.0374.00
Wynoochee River
5.9
27-18-8W
From mouth to headwaters.
12.0380.00
Wishkah River
16.2
22-19-9W
.
From influence of mean annual high tide at low base flow levels to headwaters.
Excluding E. Fk. Wishkah River.
12.0382.90
E. Fk., Wishkah R.
0.9
36-19-9W
From mouth to headwaters.
12.0385.00
W. Fk. Hoquiam
River
9.4
14-18-10W
From mouth to headwaters.
12.0385.80
Middle Fk.
Hoquiam R.
1.6
4-18-10W
From mouth to headwaters.
12.0386.60
East Fork Hoquiam
7.1
8-18-9W
From mouth to headwaters.
12.0390.00
Humptulips River
24.8
17-20-10W
From influence of mean annual high tide at low base flow levels to headwaters.
12.0174.00
Elk River
3.0
3-16-11W
From influence of mean annual high tide at low base flow levels to headwaters.
12.0175.00
Johns River
6.0
21-16-10W
From influence of mean annual high tide at low base flow levels to headwaters.
12.0180.00
Newskah Creek
3.5
32-17-9W
From influence of mean annual high tide at low base flow levels to headwaters.
12.0185.00
Charley Creek
2.0
21-17-9W
From influence of mean annual high tide at low base flow levels to headwaters.
(2) Base flows established for the stream management units in WAC 173-522-020(1) are as follows:
BASE FLOWS IN THE CHEHALIS RIVER BASIN
(In Cubic Feet per Second)
Month
Day
12.0200.00
Chehalis R.
nr. Elk Cr.
12.0205.00
Elk Cr.
12.0216.30
So. Fk.
Chehalis R.
12.0235.00
Chehalis R.
Jan.
1
 
260
 
100
 
200
 
700
 
 
15
 
260
 
100
 
200
 
700
 
Feb.
1
 
260
 
100
 
200
 
700
 
 
15
 
260
 
100
 
200
 
700
 
Mar.
1
 
260
 
100
 
200
 
700
 
 
15
 
260
 
100
 
200
 
700
 
Apr.
1
 
260
 
100
 
200
 
700
 
 
15
 
260
 
100
 
200
 
700
 
May
1
 
195
 
76
 
145
 
525
 
 
15
 
146
 
57
 
105
 
400
 
June
1
 
108
 
43
 
75
 
300
 
 
15
 
82
 
32
 
55
 
230
 
July
1
 
62
 
25
 
40
 
175
 
 
15
 
46
 
19
 
29
 
130
 
Aug.
1
 
37
 
16
 
21
 
98
 
 
15
 
31
 
14
 
15
 
75
 
Sep.
1
 
31
 
14
 
15
 
75
 
 
15
 
31
 
14
 
15
 
75
 
Oct.
1
 
39
 
15
 
21
 
92
 
 
15
 
49
 
17
 
28
 
115
 
Nov.
1
 
88
 
31
 
56
 
215
 
 
15
 
150
 
56
 
105
 
390
 
Dec.
1
 
260
 
100
 
200
 
700
 
 
15
 
260
 
100
 
200
 
700
 
Month
Day
12.0240.00
Newaukum R.
S. Fork
12.0245.00
Newaukum R.
N. Fork
12.0250.00
Newaukum R.
12.0253.00
Salzer Cr.
Jan.
1
 
125
 
 
62
250
 
 
11
 
 
15
 
125
 
 
62
250
 
 
11
 
Feb.
1
 
125
 
 
62
250
 
 
11
 
 
15
 
125
 
 
62
250
 
 
11
 
Mar.
1
 
125
 
 
62
250
 
 
11
 
 
15
 
125
 
 
62
250
 
 
11
 
Apr.
1
 
125
 
 
62
250
 
 
11
 
 
15
 
125
 
 
62
250
 
 
11
 
May
1
 
110
 
 
47
210
 
 
5.8
 
 
15
 
88
 
 
36
160
 
 
2.8
 
June
1
 
70
 
 
27
118
 
 
1.4
 
 
15
 
56
 
 
21
90
 
 
.73
 
July
1
 
45
 
 
16
68
 
 
.38
 
 
15
 
36
 
 
12
52
 
 
.20
 
Aug.
1
 
29
 
 
9
38
 
 
.10
 
 
15
 
27
 
 
7
35
 
 
.05
 
Sep.
1
 
27
 
 
7
35
 
 
.05
 
 
15
 
27
 
 
7
35
 
 
.05
 
Oct.
1
 
33
 
 
8.4
43
 
 
.14
 
 
15
 
40
 
 
10
54
 
 
.40
 
Nov.
1
 
58
 
 
19
91
 
 
1.35
 
 
15
 
85
 
 
34
150
 
 
3.9
 
Dec.
1
 
125
 
 
62
250
 
 
11
 
 
15
 
125
 
 
62
250
 
 
11
 
Month
Day
12.0264.00
Skookumchuck River
12.0275.00
Chehalis R. at Grand M.
12.0292.00
Black R.
12.0305.00
Cedar Cr.
Jan.
1
 
160
 
1300
 
200
 
 
90
 
 
15
 
160
 
1300
 
200
 
 
90
 
Feb.
1
 
160
 
1300
 
200
 
 
90
 
 
15
 
160
 
1300
 
200
 
 
90
 
Mar.
1
 
160
 
1300
 
200
 
 
90
 
 
15
 
160
 
1300
 
200
 
 
90
 
Apr.
1
 
160
 
1300
 
200
 
 
90
 
 
15
 
160
 
1300
 
200
 
 
90
 
May
1
 
160
 
1000
 
170
 
 
70
 
 
15
 
130
 
780
 
145
 
 
54
 
June
1
 
103
 
600
 
120
 
 
40
 
 
15
 
83
 
460
 
104
 
 
31
 
July
1
 
67
 
355
 
88
 
 
24
 
 
15
 
54
 
275
 
75
 
 
19
 
Aug.
1
 
43
 
210
 
70
 
 
14
 
 
15
 
35
 
165
 
66
 
 
11
 
Sep.
1
 
35
 
165
 
66
 
 
11
 
 
15
 
35
 
165
 
66
 
 
11
 
Oct.
1
 
35
 
200
 
68
 
 
13.8
 
 
15
 
35
 
250
 
70
 
 
17
 
Nov.
1
 
59
 
440
 
100
 
 
30
 
 
15
 
96
 
760
 
140
 
 
52
 
Dec.
1
 
160
 
1300
 
200
 
 
90
 
 
15
 
160
 
1300
 
200
 
 
90
 
Month
Day
12.0309.00
Porter Cr.
12.0310.00
Chehalis R. at Porter
12.0325.00
Cloquallum Creek
12.0342.00
Satsop R.
E. Fork
Jan.
1
 
 
90
2500
 
150
 
280
 
 
15
 
 
90
2500
 
150
 
280
 
Feb.
1
 
 
90
2500
 
150
 
280
 
 
15
 
 
90
2500
 
150
 
280
 
Mar.
1
 
 
90
2500
 
150
 
280
 
 
15
 
 
90
2500
 
150
 
280
 
Apr.
1
 
 
90
2500
 
150
 
280
 
 
15
 
 
90
2500
 
150
 
280
 
May
1
 
 
56
1900
 
118
 
240
 
 
15
 
 
35
1420
 
92
 
210
 
June
1
 
 
29
1060
 
70
 
175
 
 
15
 
 
24
800
 
55
 
152
 
July
1
 
 
21
610
 
43
 
130
 
 
15
 
 
17
460
 
34
 
112
 
Aug.
1
 
 
14.2
340
 
29
 
104
 
 
15
 
 
12
260
 
24
 
95
 
Sep.
1
 
 
12
260
 
24
 
86
 
 
15
 
 
12
260
 
24
 
80
 
Oct.
1
 
 
13.3
320
 
27
 
80
 
 
15
 
 
15
400
 
30
 
80
 
Nov.
1
 
 
28
760
 
52
 
125
 
 
15
 
 
50
1380
 
88
 
185
 
Dec.
1
 
 
90
2500
 
150
 
280
 
 
15
 
 
90
2500
 
150
 
280
 
Month
Day
12.0343.00
Decker Cr.
12.0345.00
Satsop R.
M. Fork
12.0350.00
Satsop R.
nr.
12.0350.02
Chehalis R.
Satsop
Jan.
1
 
130
 
260
 
1100
 
3800
 
 
15
 
130
 
260
 
1100
 
3800
 
Feb.
1
 
130
 
260
 
1100
 
3800
 
 
15
 
130
 
260
 
1100
 
3800
 
Mar.
1
 
130
 
260
 
1100
 
3800
 
 
15
 
130
 
260
 
1100
 
3800
 
Apr.
1
 
130
 
260
 
1100
 
3800
 
 
15
 
130
 
260
 
1100
 
3800
 
May
1
 
115
 
203
 
910
 
2910
 
 
15
 
103
 
160
 
750
 
2300
 
June
1
 
91
 
125
 
600
 
1750
 
 
15
 
81
 
98
 
500
 
1360
 
July
1
 
72
 
78
 
425
 
1085
 
 
15
 
64
 
61
 
360
 
860
 
Aug.
1
 
56
 
48
 
300
 
680
 
 
15
 
50
 
38
 
260
 
550
 
Sep.
1
 
50
 
38
 
260
 
550
 
 
15
 
50
 
38
 
260
 
550
 
Oct.
1
 
54
 
41
 
280
 
640
 
 
15
 
58
 
45
 
300
 
750
 
Nov.
1
 
77
 
83
 
475
 
1305
 
 
15
 
100
 
145
 
720
 
2220
 
Dec.
1
 
130
 
260
 
1100
 
3800
 
 
15
 
130
 
260
 
1100
 
3800
 
Month
Day
12-0374.00
Wynoochee
River
12-0380.00
Wishkah R.
12-0382.90
Wishkah R.
E. Fk.
12-0385.00
Hoquiam R.
W. Fk.
Jan.
1
 
560
 
135
 
 
33
 
32
 
15
 
560
 
135
 
 
33
 
32
Feb.
1
 
560
 
135
 
 
33
 
32
 
15
 
560
 
135
 
 
33
 
32
Mar.
1
 
560
 
135
 
 
33
 
32
 
15
 
560
 
135
 
 
33
 
32
Apr.
1
 
560
 
135
 
 
33
 
32
 
15
 
560
 
135
 
 
33
 
32
May
1
 
560
 
135
 
 
33
 
32
 
15
 
560
 
113
 
 
27
 
26
June
1
 
450
 
95
 
 
21
 
20
 
15
 
360
 
80
 
 
17
 
16
July
1
 
290
 
68
 
 
14
 
12.8
 
15
 
230
 
57
 
 
11.3
 
10
Aug.
1
 
185
 
47
 
 
9
 
8
 
15
 
150
 
47
 
 
9
 
8
Sep.
1
 
150
 
47
 
 
9
 
8
 
15
 
150
 
47
 
 
9
 
8
Oct.
1
 
150
 
53
 
 
10.4
 
9.4
 
15
 
230
 
60
 
 
12
 
11
Nov.
1
 
360
 
91
 
 
20
 
19
 
15
 
560
 
135
 
 
33
 
32
Dec.
1
 
560
 
135
 
 
33
 
32
 
15
 
560
 
135
 
 
33
 
32
Month
Day
12-0385.80
Hoquiam R.
M. Fk.
12-0386.60
Hoquiam R.
E. Fk.
12-0390.00
Humptulips
River
12-0174.00
Elk River
Jan.
1
 
27
 
44
 
600
 
50
 
 
15
 
27
 
44
 
600
 
50
 
Feb.
1
 
27
 
44
 
600
 
50
 
 
15
 
27
 
44
 
600
 
50
 
Mar.
1
 
27
 
44
 
600
 
50
 
 
15
 
27
 
44
 
600
 
50
 
Apr.
1
 
27
 
44
 
600
 
50
 
 
15
 
27
 
44
 
600
 
50
 
May
1
 
27
 
44
 
600
 
43
 
 
15
 
21
 
38
 
500
 
37
 
June
1
 
16
 
33
 
400
 
31
 
 
15
 
12.2
 
29
 
325
 
26
 
July
1
 
9.5
 
25
 
265
 
22
 
 
15
 
7.4
 
22
 
215
 
19
 
Aug.
1
 
5.6
 
19
 
170
 
16
 
 
15
 
5.6
 
19
 
170
 
16
 
Sep.
1
 
5.6
 
19
 
170
 
16
 
 
15
 
5.6
 
19
 
170
 
16
 
Oct.
1
 
6.7
 
19
 
205
 
20
 
 
15
 
8.0
 
25
 
250
 
25
 
Nov.
1
 
15
 
34
 
390
 
32
 
 
15
 
27
 
44
 
600
 
40
 
Dec.
1
 
27
 
44
 
600
 
50
 
 
15
 
27
 
44
 
600
 
50
 
Month
Day
12-0175.00
Johns River
12-0180.00
Newskah
Creek
12-0185.00
Charley
Creek
Jan.
1
 
70
 
 
17
 
14
 
15
 
70
 
 
17
 
14
Feb.
1
 
70
 
 
17
 
14
 
15
 
70
 
 
17
 
14
Mar.
1
 
70
 
 
17
 
14
 
15
 
70
 
 
17
 
14
Apr.
1
 
70
 
 
17
 
14
 
15
 
50
 
 
17
 
14
May
1
 
50
 
 
13.4
 
11
 
15
 
42
 
 
10.7
 
8.6
June
1
 
35
 
 
8.3
 
6.7
 
15
 
29
 
 
6.5
 
5.4
July
1
 
24
 
 
5.2
 
4.2
 
15
 
21
 
 
4.1
 
3.3
Aug.
1
 
17
 
 
3.2
 
2.5
 
15
 
17
 
 
2.5
 
2
Sep.
1
 
17
 
 
2.5
 
2
 
15
 
17
 
 
2.5
 
2
Oct.
1
 
17
 
 
3.2
 
2.6
 
15
 
24
 
 
4
 
3.5
Nov.
1
 
35
 
 
8.4
 
7.1
 
15
 
49
 
 
17
 
14
Dec.
1
 
70
 
 
17
 
14
 
15
 
70
 
 
17
 
14
(3) Base flow hydrographs, Appendix 1, pages 19-23 in the document entitled "water resources management program in the Chehalis River basin" dated November, 1975 shall be used for definition of base flows on those days not specifically identified in WAC 173-522-020(2).
(4) All rights hereafter established shall be expressly subject to the base flows established in WAC 173-522-020 (1) through (3).
(5) At such time as the departments of fisheries and/or wildlife provide specific information substantiating the need for flows higher than the flows set forth in WAC 173-522-020(2), the department of ecology agrees to proceed with setting minimum flows as provided under chapter 90.22 RCW within one year from the time of said request, unless agreement to another time frame is reached between parties.
[Statutory Authority: Chapters 43.21B, 43.27A, 90.22 and 90.54 RCW. WSR 88-13-037 (Order 88-11), § 173-522-020, filed 6/9/88; Order 75-31, § 173-522-020, filed 3/10/76.]