Washington Administrative Code › Title 173 - Ecology, Department of (See also Titles 197, 317, 372, and 508) › Chapter 173-522 - Water resources program in the Chehalis River basin, WRIA-22 and 23 › Section 173-522-020 - Establishment of base flows

Current through Register Vol. 24-14, July 15, 2024
(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. 88-13-037 (Order 88-11),
				  § 173-522-020, filed 6/9/88; Order 75-31, § 173-522-020, filed
				  3/10/76.