SCADA Systems

Associated Engineering was the consultant for one of Nason Contracting Group's largest SCADA upgrade. The upgrade involved five sites including Flatbush, Smith, Canyon Creek, Mitsue and the districts main administration building. In Flatbush and Mitsue the existing control hardware was replaced with current PLC technology and SCADA application software. The Canyon Creek site was a unique challenge, incorporating a main plant PLC, two remote PLC racks over Data Highway + and communication to a third party PLC controlling a membrane filtration plant. This configuration saved the Municipal District time and money, utilizing existing control panels for the remote PLC hardware.

Any site can be accessed by any other site via the internet and remote access software. Reporting information and operator daily logs are retrieved from the remote sites and stored at the districts administration building.

Nason Contracting Group Ltd. was selected by ISL engineering to provide a cost effective SCADA network for Mackenzie County. The project included a controls upgrade to the Fort Vermillion WTP plant with an updated alarming system. The Fort Vermillion Liftstation had the existing relay control panel replaced with a modern PLC control system and local HMI for operator control. Sites including LaCrete, Zama City and Fort Vermillion will be polled for reporting data that will be populated in structured reports for Alberta Environment.

The operators now have the ability to access any of the sites within the County from anywhere in the world via Internet. This access will allow the operators to remotely troubleshoot alarms and conditions of the plants, drastically reducing travel time associated with maintaining these remote locations.

Nason Contracting Group was selected by Associated Engineering to perform the Electric and Instrumentation upgrades at various sites around the Town of Stony Plain. The work included the replacement of outdated switchgear and the addition of modern VFD technology. The VFD technology allows the pumping stations to use only the electricity required to maintain the distribution system pressure.

The various sewage liftstations and potable water pumping stations were linked to a main site utilizing spread spectrum Ethernet/IP based radios. The operator is now able to monitor such things as flows, pressures and alarms from one central site.

Nason Contracting Group was awarded the contract to upgrade three sewage liftstations for the Waskasoo Regional Services Board, which pump sewage from the towns of Penhold and Springbrook and parts of Red Deer County for treatment in the City of Red Deer.

The project generally consisted of the replacement of sewage lift pumps, channel grinders and process piping, upgrading of motor control to Variable Frequency Drives, and upgrading of the control systems and instrumentation.

Nason Contracting Group was awarded the contract to upgrade the control systems of two existing Water Treatment Plants for Yellowhead County.

The project generally consisted of the upgrading of instrumentation and replacement control panels with new PLC based control systems, including PC based Supervisory Control and Data Acquisition software at each site. In addition, a dedicated computer was installed in the Yellowhead County administration building to allow for centralized monitoring, report data acquisition, and generation of centralized alarm call out for all of the County's water treatment facilities.