Wash. Admin. Code § 173-522-020

Current through Register Vol. 24-21, November 1, 2024

Section 173-522-020 - Establishment of base flows

(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.

Wash. Admin. Code § 173-522-020

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.