Arsenic Removal Water Treatment Plant

City of Corcoran, 
California

Arsenic Removal Water Treatment Plant

Service Type: 
Corcoran Tank
Carollo, in cooperation with another firm, designed the new Arsenic Water Treatment Plant for the City of Corcoran, California. Carollo Systems was selected to program the new plant control system. Prior to the project, the City of Corcoran's existing water supply system consisted of eight groundwater wells delivering water to the city storage system with minimal filtration through a sand filter and chemical disinfection. The existing control system consisted of RTUs at each well and pump station communicating through a radio network to a National Instrument's Lookout SCADA program at the public works facility. In addition to the process upgrades, declining factory support for the existing SCADA software prompted the replacement of the existing SCADA control system with an implementation of GE Proficy iFIX® 4.0 SCADA/HMI software. Plant control is now handled through a pair of Allen-Bradley SLC5/05 processors. Carollo's efforts on this project included:
  • Duplication of existing well and pump station controls in new SCADA/HMI system
  • Programming of control and operator interface for all plant processes (with exception of OEM filtration system)
  • Integration of communications with OEM filtration system into plant SCADA system
  • System startup and commissioning
  • Provision of thoroughly documented control system for the City
  • Operations personnel training
  • Process report development
  • Automated alarm paging system
  • Remote site access