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. 24-06, March 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.
