Sun Pacific Fish Screen and Pump Installation (Streambed Alteration Agreement No. 1600-2018-0073-R2)
NOD - Notice of Determination
Terry Schultz, Paramount Ranch Company
involve the installation of an electric-powered, turbine-style pump system and
associated fish screen on the Yuba River. The pump is a replacement for the previous owner's pump at a location approximately 100 yards upstream of the old pump structure. The previous pump site location was susceptible to sediment accumulation and flood damage. The pipe will be installed within a 30-inch conductor pipe that will be approximately 50-feet long. The conductor pipe will be mounted on twelve 8-
inch piles that will be driven 40 feet deep (or to refusal) using a crane suspended vibratory hammer. Appropriate noise attenuation methods will be used during the driving of the piles. The electric pump motor and controls will be on a 12’ x 12’ steel platform with handrails. The platform will be set on four 8- inch pipe piles. The footprint of the whole system will be approximately 70 feet long by 12 feet wide and
sit above ground at varying heights. The 18-inch discharge pipe will be installed 4 feet below current grade. A fish screen is proposed for the pump. The contractor (Intake Screens, Inc.) has proposed an ISI T30-36 cylindrical T screen with a hydraulically driven, self-cleaning brushing system. The screen will sit on a 70-foot long track and will be retrievable with an electric winch. The screen will be constructed with Type 304 stainless steel and 69V wedge wire with 1.75 mm slot widths. The screen is designed for approximately 47 square feet of screen surface area with 50% open area and a total flow rate of approximately 15.6 cubic feet per second (cfs) at an approach velocity of 0.33 feet per second. This Agreement also covers the diversion of 5,500 gallons per minute of water, during the time frame of February 15 to November 15, for the purposes of frost protection and irrigation. Diversion is authorized through a riparian water right, for immediate use. Minimum flow requirements are set by the Yuba River Accord, throughout the year.
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