The Sutter Basin is a 264 sq mi (680 km2)[1] area of the Sacramento Valley in the U.S. state of California, and is part of the Feather Riverdrainage basin. The basin includes the Sutter Basin Fire Protection District of ~127 sq mi (330 km2)[2] and uses irrigation from the Thermalito Afterbay's Sutter-Butte Canal.[3] The Feather River and the Sutter By-Pass are the basin's east and southwest borders.
The bypass also receives similar Sacramento escapement flow from the Colusa Weir,[9] and the Snake River, Gilsizer Slough, Wadsworth Canal, and other west side watercourses of the Lower Feather Watershed also drain to the Feather River via the Sutter Bypass,[10] The bypass includes 3.24 sq mi (8.4 km2) of the Sutter National Wildlife Refuge,[11] which is part of California's ~5.00 sq mi (12.9 km2) Sutter Bypass Wildlife Area.[12]
^"Section 2: Proposed Action and Alternatives". Final Environmental Impact Statement for the Oroville Facilities Project. Federal Energy Regulatory Commission. p. 17. Retrieved 2010-09-15. NOTE: Pumpback returns Feather River water back to Lake Oroville during off-peak periods when external California Edison Company (SCE) power is inexpensive, allowing subsequent hydroelectric generation (6-7% of Hyatt total) during peak (higher price) periods.
^"9.6 Water Resources". TBD. CERES.CA.gov. Retrieved 2010-10-13. The Bypass starts north of Pass Road, westerly of the Sutter Buttes and generally goes in a south-southeast direction for about 27 miles
"Sutter National Wildlife Refuge". Areas of Interest. Retrieved 2010-10-07. Habitat: 2,591 acres comprised of seasonal marsh, permanent ponds, and uplands.