Client: San Diego County Water Authority
Location: San Marcos, CA
Lopez Engineering, Inc. (LEI) was contracted by the San Diego County Water Authority to design the electrical and controls portions of the new Vallecitos Flow Control Facility, replacing the existing facility. LEI reviewed the design provided by the San Diego County Water Authority and corrected it to comply with the California Electrical Code (CEC) and fulfill SDCWA criteria.
The project included revising the power and communication lines routing, lighting, power, and SCADA controls to serve a new vault constructed near a deteriorating facility. Grounding utilized both ground rods and UFER grounding. Lighting incorporated sealed and gasketed fluorescent fixtures to withstand the anticipated abuse and isolated harsh environment. Lighting, communication and control cabinets and SCADA devices and cabinets were served via electrical branch circuits.
Power and controls were also provided for the sump pump and ventilation blower. Control design followed the SDCWA existing SCADA system requirements. Monitoring, measuring and control points included: pressure, flow, motor run, valve position, setpoint, HOA position, UPS power failure and intrusion alarm points. For this facility, the biggest control item was a manual 36” plug value. Design included 1-line diagrams, lighting plans, power plans, conduit/wire/panel schedules, details, a P&ID drawing, and control panel RTU wiring diagrams. Lopez Engineering completed the design for substantially less than the agreed-upon budget.