Gaviota Water and Wastewater Upgrade Design Project
Gaviota Water and Wastewater Upgrade Design Project
Client: Caltrans via North Star
Location: Highway 101 North of Santa Barbara, CA
Lopez Engineering, Inc. (LEI) served as a sub-contractor to NorthStar Engineering, which had the prime contract with Caltrans. This task order is part of the IDIQ that NorthStar with LEI as a sub-consultant has with Caltrans. Key LEI personnel J. Lopez, PE, Neil Sherer, Bela Wouters, Donald Crawford, and Wesley Breckenridge designed the electrical and SCADA systems for the Gaviota SRRA on US101 north of both Santa Barbara, CA and the Gaviota CA State Park.
The water system consists of replacing the existing storage tank, replacing the existing pump house, replacing two (2) five (5) HP pumps with two (2) three (3) HP pumps to fill the tank, a by-pass line for when supply pressure water is sufficient to not require the fill pumps, installing two new five (5) HP booster pumps, a new pressure tank with air compressor (hydro tank), two (2) water meters (one for northbound SRRA and one for southbound SRRA, a bladder tank on the southbound SRRA, and controls.
Crew Building and Pump Station are being designed by Caltrans. The pump station will be replaced on the Northbound SRRA with the electrical, lighting, and controls designed by Lopez Engineering. The Crew Building is being designed by Caltrans with Lopez Engineering designing the electrical, lighting, and controls.
System Control and Data Acquisition (SCADA) acquires data from and/or controls level sensors, float switches, pressure switches, scum/sludge sensor, liquid meters, valves with valve actuators, pump electrical current sensors, calendar, run time meters, and starters.
Electrical System: SCE provides the Gaviota SRRA with 240-volt, single phase power with separate feeds to the Northbound SRRA, the Southbound SRRA, and the leach field. Three phase power extension to the site was investigated and ruled as not cost effective.