Planning and Research, Office of
(Office of Planning and Research)
Rancho Temescal Diversion Pumps
NOE - Notice of Exemption
The Applicant intends to alter the streambed by operating two surface water diversion pumps. Each pump consists of a diesel operated pump with spark arrestor, placed in a secondary containment "spillguard" berm, an intake (fish-friendly) screen, plastic suction hose and aluminum discharge piping. The screen has opening of 2.0 millimeter and the screen dace has an approach velocity of less than 0.33 feet per second. The sprillguard berm and pump are always located outside of the water covered portions of the creek. Pump #1 is located upstream of the confluence of the Lime Canyon and Pump #2 is located downstream at a diversion pond operated by Piru Mutual Water Company. Both pumps are moved to accommodate the seasonal flows released from the upstream Lake Piru reservoir. Each pump is capable of diverting 1,000 gallons per minute. Water is stored temporarily in holding tanks, which are located outside of the creek. The Applicant hold Riparian Water Rights under the State Water Resources Control Board (recognized by Statement Numbers SO15514 and SO15515).
Class 4 consists of minor public, or private alterations in the condition of land, water, and/or vegetation which do not involve removal of healthy, mature, scenic trees except for forestry and agricultural purposes.