WAC 173-555-030

WAC 173-555-030. Establishment of base flows

Last amended: 1976Year: 2026Length: 637 wordsOfficial source
(1) Base flows are established for stream management units with monitoring to take place at certain control points as follows: Stream Management Unit Information Control Station Number, Stream Management Unit Name Control Station Location by River Mile and Section, Township Range Affected Stream Reach No. 12-4270.00 Little Spokane River Elk 34.6 Sec. 8, T.29N., R.43 E.W.M. From confluence with Dry Creek to the headwaters including tributaries except Dry Creek. No. 12-4295.00 Little Spokane River Chattaroy 23.05 Sec. 34, T.28N., R.43 E.W.M. From confluence with Deer Creek to confluence with Dry Creek including tributaries except Deer Creek. No. 12-4310.00 Little Spokane River Dartford 10.8 Sec. 6, T.26N., R.43 E.W.M. From confluence with Little Creek to confluence with Deer Creek including tributaries except Little Creek. No. 12-4315.00 Little Spokane River Confluence 3.9 Sec. 3, T.26N., R.42 E.W.M. From mouth to confluence with Little Creek including tributaries. Control Station Number, Stream Management Unit Name Control Station Location by River Mile and Section, Township Range Affected Stream Reach No. 12-4270.00 Little Spokane River Elk 34.6 Sec. 8, T.29N., R.43 E.W.M. From confluence with Dry Creek to the headwaters including tributaries except Dry Creek. No. 12-4295.00 Little Spokane River Chattaroy 23.05 Sec. 34, T.28N., R.43 E.W.M. From confluence with Deer Creek to confluence with Dry Creek including tributaries except Deer Creek. No. 12-4310.00 Little Spokane River Dartford 10.8 Sec. 6, T.26N., R.43 E.W.M. From confluence with Little Creek to confluence with Deer Creek including tributaries except Little Creek. No. 12-4315.00 Little Spokane River Confluence 3.9 Sec. 3, T.26N., R.42 E.W.M. From mouth to confluence with Little Creek including tributaries. (2) Base flows established for the stream management units in WAC 173-555-030(1) are as follows: Base Flows in the Little Spokane River Basin (in Cubic Feet Per Second) Month Day 12-4270.00 Elk 12-4295.00 Chattaroy 12-4310.00 Dartford 12-4315.00 Confluence Jan. 1 40 86 150 400 15 40 86 150 400 Feb. 1 40 86 150 400 15 43 104 170 420 Mar. 1 46 122 190 435 15 50 143 218 460 Apr. 1 54 165 250 490 15 52 143 218 460 May 1 49 124 192 440 15 47 104 170 420 Jun. 1 45 83 148 395 15 43 69 130 385 Jul. 1 41.5 57 115 375 15 39.5 57 115 375 Aug. 1 38 57 115 375 15 38 57 115 375 Sept. 1 38 57 115 375 15 38 63 123 380 Oct. 1 38 70 130 385 15 39 77 140 390 Nov. 1 40 86 150 400 15 40 86 150 400 Dec. 1 40 86 150 400 15 40 86 150 400 Month Day 12-4270.00 Elk 12-4295.00 Chattaroy 12-4310.00 Dartford 12-4315.00 Confluence Jan. 1 40 86 150 400 15 40 86 150 400 Feb. 1 40 86 150 400 15 43 104 170 420 Mar. 1 46 122 190 435 15 50 143 218 460 Apr. 1 54 165 250 490 15 52 143 218 460 May 1 49 124 192 440 15 47 104 170 420 Jun. 1 45 83 148 395 15 43 69 130 385 Jul. 1 41.5 57 115 375 15 39.5 57 115 375 Aug. 1 38 57 115 375 15 38 57 115 375 Sept. 1 38 57 115 375 15 38 63 123 380 Oct. 1 38 70 130 385 15 39 77 140 390 Nov. 1 40 86 150 400 15 40 86 150 400 Dec. 1 40 86 150 400 15 40 86 150 400 (3) Base Flow hydrographs, Figure II-1 in the document entitled "water resources management program in the Little Spokane River Basin" dated August, 1975 shall be used for definition of base flows on those days not specifically identified in WAC 173-555-030(2). (4) All rights hereafter established shall be expressly subject to the base flows established in sections WAC 173-555-030 (1) through (3).
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