INSTREAM FLOWS IN THE SNOHOMISH RIVER BASIN (in Cubic Feet per Second) | |||||
Month | Day | 12.1330.00 So. Fk. Skykomish | 12.1411.00 Skykomish | 12.1430.00 No. Fk.* Snoqualmie | No. Fk.** Snoqualmie |
Jan. | 1 | 900 | 2200 | 260 | 200 |
15 | 900 | 2200 | 260 | 200 | |
Feb. | 1 | 900 | 2200 | 260 | 200 |
15 | 900 | 2200 | 260 | 200 | |
Mar. | 1 | 900 | 2200 | 260 | 200 |
15 | 900 | 2200 | 300 | 200 | |
Apr. | 1 | 1100 | 2650 | 300 | 200 |
15 | 1250 | 3250 | 300 | 200 | |
May | 1 | 1250 | 4000 | 300 | 200 |
15 | 1250 | 4900 | 300 | 200 | |
June | 1 | 1250 | 4900 | 300 | 200 |
15 | 1250 | 4900 | 300 | 200 | |
July | 1 | 1250 | 3250 | 300 | 200 |
15 | 950 | 2170 | 195 | 140 | |
Aug. | 1 | 650 | 1450 | 130 | 100 |
15 | 450 | 1000 | 130 | 100 | |
Sept. | 1 | 450 | 1000 | 130 | 100 |
15 | 450 | 1000 | 130 | 100 | |
Oct. | 1 | 550 | 1300 | 130 | 130 |
15 | 700 | 1700 | 165 | 165 | |
Nov. | 1 | 900 | 2200 | 210 | 200 |
15 | 900 | 2200 | 260 | 200 | |
Dec. | 1 | 900 | 2200 | 260 | 200 |
15 | 900 | 2200 | 260 | 200 | |
- - - - |
* | Normal year flows must be maintained at all times unless a critical condition is declared by the director. The director, or his designee, may authorize, in consultation with the state departments of fisheries and wildlife, a reduction in instream flows during a critical condition period. At no time are diversions subject to this regulation permitted for any reason when flows fall below the following critical year flows, except where a declaration of overriding considerations of public interest is made by the director. |
** | Critical year flows represent flows below which the department believes substantial damage to instream values will occur. |
Month | Day | 12.1381.50 Sulton | 12.1445.00 Snoqualmie (above Falls) | 12.1485.50 Tolt River* | Tolt River** |
Jan. | 1 | 1550 | 280 | 190 | |
15 | 1550 | 280 | 190 | ||
Feb. | 1 | 1550 | 280 | 190 | |
15 | 1550 | 280 | 190 | ||
Mar. | 1 | 1550 | 280 | 190 | |
15 | 1550 | 280 | 190 | ||
Apr. | 1 | 1550 | 280 | 190 | |
15 | 1550 | 280 | 190 | ||
May | 1 | 1550 | 280 | 190 | |
15 | 1550 | 280 | 190 | ||
June | 1 | 1550 | 280 | 190 | |
15 | 1550 | 280 | 165 | ||
July | 1 | 1550 | 280 | 140 | |
15 | 1100 | 240 | 120 | ||
Aug. | 1 | 770 | 170 | 120 | |
15 | 600 | 120 | 120 | ||
Sept. | 1 | 600 | 120 | 120 | |
15 | 600 | 120 | 120 | ||
Oct. | 1 | 820 | 190 | 185 | |
15 | 1100 | 280 | 190 | ||
Nov. | 1 | 1550 | 280 | 190 | |
15 | 1550 | 280 | 190 | ||
Dec. | 1 | 1550 | 280 | 190 | |
15 | 1550 | 280 | 190 | ||
- - - - |
* | Normal year flows must be maintained at all times unless a critical condition is declared by the director. The director, or his designee, may authorize, in consultation with the state departments of fisheries and wildlife, a reduction in instream flows during a critical condition period. At no time are diversions subject to this regulation permitted for any reason when flows fall below the following critical year flows, except where a declaration of overriding considerations of public interest is made by the director. |
** | Critical year flows represent flows below which the department believes substantial damage to instream values will occur. |
Month | Day | 12.1490.00 Snoqualmie (Carnation) | 12. Snoqualmie (mouth) | 12.1554.00 Pilchuck R. | 12.1508.00 Snohomish R. |
Jan. | 1 | 2500 | 2800 | 300 | 6000 |
15 | 2500 | 2800 | 300 | 6000 | |
Feb. | 1 | 2500 | 2800 | 300 | 6000 |
15 | 2500 | 2800 | 300 | 6000 | |
Mar. | 1 | 2500 | 2800 | 300 | 6000 |
15 | 2500 | 2800 | 300 | 6000 | |
Apr. | 1 | 2500 | 2800 | 300 | 6000 |
15 | 2500 | 2800 | 300 | 6500 | |
May | 1 | 2500 | 2800 | 300 | 7200 |
15 | 2500 | 2800 | 300 | 8000 | |
June | 1 | 2500 | 2800 | 300 | 8000 |
15 | 2500 | 2800 | 300 | 8000 | |
July | 1 | 1850 | 2180 | 220 | 5700 |
15 | 1300 | 1550 | 160 | 4000 | |
Aug. | 1 | 950 | 1080 | 120 | 2800 |
15 | 700 | 800 | 85 | 2000 | |
Sept. | 1 | 700 | 800 | 85 | 2000 |
15 | 700 | 800 | 85 | 2000 | |
Oct. | 1 | 1050 | 1200 | 130 | 2900 |
15 | 1650 | 1850 | 200 | 4000 | |
Nov. | 1 | 2500 | 2800 | 300 | 6000 |
15 | 2500 | 2800 | 300 | 6000 | |
Dec. | 1 | 2500 | 2800 | 300 | 6000 |
15 | 2500 | 2800 | 300 | 6000 |