Salmon Arm water treatment plant in Canoe to replace outdated parts – Salmon Arm Observer

The Salmon Arm water treatment plant in Canoe is undergoing an upgrade.

City staff reported to council on March 14 that the ultraviolet disinfection process is accomplished using two Trojan UV reactors. The UV units have been in operation since the plant was commissioned in May 2009, 13 years ago.

A staff report explained that the plant treats raw water from Shuswap Lake to meet the requirements of the Drinking Water Protection Act. It uses a direct filtration process followed by ultraviolet and chlorine disinfection before distributing water for consumption.

Staff reported that the system control center uses programmable logic controllers (PLCs) which are now obsolete and need to be upgraded. API functions include monitoring, control, and communications to share data across networks.

Staff said the replacements are necessary to ensure the UV disinfection process continues to meet regulations.

Along with new PLCs, programming software updates will be required. The total price with hardware, programming and testing is around $23,000. The cost includes an estimated $1,000 airfare to fly a programmer to the factory for installation and programming.

A budget of $25,000 has already been approved in the 2022 city budget for the upgrade. The board voted unanimously to approve the expenses.

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