PDFWAC 173-548-020

Establishment of base flows.

(1) Base flows are established for stream management units with monitoring to take place at certain control points as follows:
STREAM MANAGEMENT UNIT INFORMATION
Stream Management Unit Name, Control Station Name and Number
 
Control Station Location by River Mile, Section, Township, Range
 
Affected Stream Reach (includes tributaries)
Lower Methow
Methow R. nr.
Pateros
(12.4499.50)
6.7
20-30-23E
Methow River confluence with Wells Pool to confluence with Twisp River.
Middle Methow
Methow R. nr.
Twisp
(12.4495.00)
40.0
17-33-22E
Methow River from confluence with
Twisp River to confluence with Chewack River.
Upper Methow
Methow R. nr.
Winthrop
(12.4473.89)
50.2
2-34-21E
Methow River from confluence with Chewack River to confluence with Little Boulder Creek and including Little Boulder Creek.
Methow Headwaters Methow R. at
Little Boulder Cr.
(12.4473.83)
65.3
25-36-19E
Methow River from confluence with Little Boulder Creek to headwaters.
Early Winters Creek
Early Winters Cr.
near Mazama
27-36-19E
Early Winters Creek from confluence with Methow River to headwaters.
Chewack River
Chewack R. nr.
Boulder Creek
(12.4475.00)
8.7
35-36-21E
Chewack River confluence with Methow River to headwaters.
Twisp River
Twisp R. nr.
Twisp
(12.4489.98)
0.3
7-33-22E
Twisp River from confluence with Methow River to headwaters.
(2) Base flows established for the stream management units in WAC 173-548-020(1) are as follows:
Base Flows in the Methow River
(All Figures in Cubic Feet Per Second)
[CODIFICATION NOTE: The graphic presentation of this table has been varied slightly in order that it would fall within the printing specification for the Washington Administrative Code. The following table was too wide to be accommodated in the width of the WAC column. The table as codified has been divided into two tables with Part 1 covering the Lower Methow, Middle Methow and Upper Methow and with Part 2 covering the Methow Headwaters, Early Winters Creek, Chewack River and Twisp River.]
PART 1
Month
Day
Lower
Methow
(12.4499.50)
Middle
Methow
(12.4495.00)
Upper
Methow
(12.4473.89)
Jan.
1
 
350
 
260
 
120
 
 
15
 
350
 
260
 
120
 
Feb.
1
 
350
 
260
 
120
 
 
15
 
350
 
260
 
120
 
Mar.
1
 
350
 
260
 
120
 
 
15
 
350
 
260
 
120
 
Apr.
1
 
590
 
430
 
199
 
 
15
 
860
 
650
 
300
 
May
1
 
1,300
 
1,000
 
480
 
 
15
 
1,940
 
1,500
 
690
 
Jun.
1
 
2,220
 
1,500
 
790
 
 
15
 
2,220
 
1,500
 
790
 
Jul.
1
 
2,150
 
1,500
 
694
 
 
15
 
800
 
500
 
240
 
Aug.
1
 
480
 
325
 
153
 
 
15
 
300
 
220
 
100
 
Sep.
1
 
300
 
220
 
100
 
 
15
 
300
 
220
 
100
 
Oct.
1
 
360
 
260
 
122
 
 
15
 
425
 
320
 
150
 
Nov.
1
 
425
 
320
 
150
 
 
15
 
425
 
320
 
150
 
Dec.
1
 
390
 
290
 
135
 
 
15
 
350
 
260
 
120
 
PART 2
Month
Day
Methow
Headwaters
(12.4473.83)
Early
Winters
Creek
Chewack
River
(12.4475.00)
Twisp
River
(12.4489.98)
Jan.
1
 
42
 
10
 
56
 
34
 
 
15
 
42
 
10
 
56
 
34
 
Feb.
1
 
42
 
10
 
56
 
34
 
 
15
 
42
 
10
 
56
 
34
 
Mar.
1
 
42
 
10
 
56
 
34
 
 
15
 
42
 
10
 
56
 
34
 
Apr.
1
 
64
 
14
 
90
 
60
 
 
15
 
90
 
23
 
140
 
100
 
May
1
 
130
 
32
 
215
 
170
 
 
15
 
430
 
108
 
290
 
300
 
Jun.
1
 
1,160
 
290
 
320
 
440
 
 
15
 
1,160
 
290
 
320
 
440
 
Jul.
1
 
500
 
125
 
292
 
390
 
 
15
 
180
 
45
 
110
 
130
 
Aug.
1
 
75
 
20
 
70
 
58
 
 
15
 
32
 
8
 
47
 
27
 
Sep.
1
 
32
 
8
 
47
 
27
 
 
15
 
32
 
8
 
47
 
27
 
Oct.
1
 
45
 
11
 
56
 
35
 
 
15
 
60
 
15
 
68
 
45
 
Nov.
1
 
60
 
15
 
68
 
45
 
 
15
 
60
 
15
 
68
 
45
 
Dec.
1
 
51
 
12
 
62
 
39
 
 
15
 
42
 
10
 
56
 
34
 
(3) Base flow hydrographs, as represented in Figure 1 in the document entitled "water resources management program, Methow River basin" dated 1976, shall be used for definition of base flows on those days not specifically identified in WAC 173-548-020(2) and 173-548-030.
(4) All rights hereafter established shall be subject to the base flows established in WAC 173-548-020 (1) through (3), except as provided under WAC 173-548-030 herein.
(5) Future appropriations of water which would conflict with base flows shall be authorized, by the director, only in those situations when it is clear that overriding considerations of the public interest will be served.
[Order DE 76-37, § 173-548-020, filed 12/28/76.]