WAC 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. 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 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 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.