GWRS Groundwater Replenishment System, FOUNTAIN VALLEY, CA
KDC Systems provided electrical, instrumentation and control system engineering and installation expertise to automate the Orange County Water District Groundwater Replenishment System (GWRS) in Fountain Valley, CA. The process control system hardware and software was Emerson DeltaV with I/O devices by Allen-Bradley and Phoenix Contact, and the project used specialty subvendors for the Microfiltration and Ultraviolet Disinfection systems. The Reverse Osmosis system and balance of plant were automated by KDC; and KDC was in the unique position of combining the other subvendor controls work to establish one integrated control system. KDC produced about (30) main control panels, and another (70) panels for instrumentation, local control, etc. There are around (60) DeltaV controllers for this project, many of them redundant. KDC performed all control wire terminations and instrument calibrations.
The overall project I/O count of 8,000 points was substantially implemented using Foundation Fieldbus and DeviceNet, and there were about 15,000 historized points. About half of the points were KDC’s direct responsibility, while the balance was indirectly our responsibility as overall system integrator. KDC held workshops with the owner and developed software detailed designs, test plans, and a complete software library which we administrated among the other subvendors. Unwitnessed and witnessed testing was conducted at our facility, and was repeated in the field on actual equipment with water to commission the system.