Washington Administrative Code › Title 173 - Ecology, Department of (See also Titles 197, 317, 372, and 508) › Chapter 173-511 - Instream resources protection program - Nisqually River basin, water resource inventory area (WRIA) 11 › Section 173-511-030 - Establishment of instream flows

Current through Register Vol. 24-14, July 15, 2024
(1)
			 Stream management units and associated control stations are established as
			 follows:
STREAM MANAGEMENT UNIT
				INFORMATION
Control Station
No. Stream
Management
Unit Name
Control Station
Location, River
Mile and Section,
Township and Range
Affected Stream
Reach
New gage
Nisqually River
4.3
9, 18N, 1E
From influence of mean annual high tide at low base
							 flow levels to the outlet of the Centralia City Light Power Plant.
12-0895-00
Nisqually River
21.8
28, 17N, 2E
From outlet of the Centralia City Light Power Plant
							 at river mile 12.6 to Centralia City Light Power canal diversion at river mile
							 26.2, including all tributaries.
12-0884-00
Nisqually River
32.6
21, 16N, 3E
From the Centralia City Light Power canal diversion
							 at river mile 26.2 to gage 12-0865-00 near the La Grande Power Plant, including
							 all tributaries except the Mashel River.
12-0825-00
Nisqually River
57.8
29, 15N, 6E
From gage 12-0865-00 near the La Grande Power Plant
							 to the headwaters including all tributaries.
12-0870.00
Mashel River
3.25
11, 16N, 4E
From mouth upstream to the headwaters including all
							 tributaries.
(2) Instream
			 flows established for the stream management unit described in WAC
			 173-511-030(1) are as follows:
INSTREAM FLOWS IN THE NISQUALLY RIVER
				BASIN
(in Cubic Feet per Second)
Month
Day
Lower Reach
of the
Nisqually
River
USGS Gage
12-* RM 4.3
RM 4.3
Bypass Reach
of the
Nisqually
River
USGS Gage
12-0895-00
RM 21.8
Mid Reach
of the
Nisqually
River
USGS Gage
12-0884-00
RM 32.6-
January
1
900
600
900
15
900
600
900
February
1
900
600
900
15
900
600
900
March
1
900
600
900
15
900
600
900
April
1
900
600
900
15
900
600
900
May
1
900
600
900
15
900
600
900
June
1
900
500(closed)
800(closed)
15
850
450(closed)
800(closed)
July
1
800
400(closed)
800(closed)
15
800
400(closed)
800(closed)
August
1
800
370(closed)
800(closed)
15
800
370(closed)
650(closed)
September
1
600
370(closed)
600(closed)
15
600
370(closed)
600(closed)
October
1
700
550(closed)
700(closed)
15
700
550(closed)
700(closed)
November
1
700
600
700
15
700
600
700
December
1
800
600
800
15
900
600
900
*New gage to be established.
Month
Day
Upper Reach
of the
Nisqually River
USGS Gage
12-0825-00
RM 57.8
Mashel River
USGS Gage
12-0870-00
RM 3.25
January
1
450
100
15
450
100
February
1
450
100
15
450
100
March
1
450
100
15
450
100
April
1
450
100
15
450
100
May
1
450
100
15
450
80
June
1
600
80(closed)
15
650
70(closed)
July
1
550
50(closed)
15
500
40(closed)
August
1
450
30(closed)
15
400
30(closed)
September
1
350
20(closed)
15
300
20(closed)
October
1
300
20(closed)
15
300
20(closed)
November
1
350
40
15
400
70
December
1
450
100
15
450
100
(3) Instream flow
			 hydrographs, as represented in the document entitled "Nisqually River basin
			 instream resource protection program," shall be used for identification of
			 instream flows on those days not specifically identified in WAC
			 173-511-030(2).
Statutory Authority: Chapters 90.22 and
				  90.54 RCW. 81-04-028 (Order DE
				  80-42), § 173-511-030, filed
				  2/2/81.