BH was a member of the design/build team for the upgrade of the Canal Road Water Treatment Plant from 60 to 80 MGD with 100 MGD hydraulic capability. As part of the team, BH provided the electrical power, PLC/SCADA system, and instrumentation design for the entire upgrade, as well as process mechanical design for improvements to the raw water pump station and intake. BH also performed an electrical coordination/short circuit study to establish the suitability of all equipment currently in the plant.
At the Raw Water Pump Station, BH added a new 700 HP, 4,160 V pump with VFD including all the necessary piping, valves, and instrumentation and controls. Two new intake screens were added to the raw water intake channels to improve intake capacity. BH also provided all required equipment to air backwash the new screens.
Our electrical design services included all power and instrumentation and control for two new flocculation/sedimentation basins and o-zone generating equipment, as well as the required granular media filter improvements. The finished water pump station was also modified to include an additional 1,500 HP, 4,160 V controlled pump, VFD, and related appurtenances. New motor control centers were designed along with a supervisory control and data acquisition system (SCADA) for both the new and the existing treatment equipment.
The expanded facility required an additional 4.5 MW of diesel-powered generating equipment for standby power along with paralleling switchgear and modifications to the existing electrical generators to integrate them into a single system. BH added two new 4.16 kV, 2.25 MW units to the two existing 1.5 MW generators and a new 5 kV medium voltage paralleling switchgear to control all four units with provisions to add two future generators.
The existing proprietary HMI software process control package was evaluated and subsequently replaced with a non-proprietary, Windows-based OPC compliant protocol SCADA system. The new SCADA system used the existing Allen-Bradley PLCs with new matching PLCs added for the new process equipment. An electrical generation system was integrated into the new SCADA system. The new SCADA system design was created similar to the look of the original system since the operators were familiar with the look and feel of the existing controls, operational displays, and reports.
Water Resources
