Wastewater plant work prompts deferral of three capital projects.
Council approved the replacement of both the ultraviolet (UV) system and tertiary sand filters at the plant during its June 19 meeting.
The former carries a $255,200 bill to replace the current and no longer supported Trojan UV3000 system to an upgraded Trojan UV3000B.
The cost overruns with the latter, however, will mean the deferral of three capital projects expected to have been completed by public works in 2017.
Karen Dunlop, director of public works, spoke about both projects in-depth at the June 5 committee of the whole session.
The UV system is in place at the plant which disinfects the effluent water before it is discharged into the Rideau River.
She noted that the municipality was notified in March 2014 that the UV3000 line was being retired.
“It was determined at that time by staff that the UV3000B proposal was the most economical option due to the cost of the UV system upgrade …” In 2016, council approved $300,000 toward the upgrade and in 2017, the municipality hired RV Anderson Associates Ltd. as the engineering consultant to confirm the UV3000B system would meet the specifications of the water pollution control plant.
Dunlop said North Grenville was also in talks with the Town of Smiths Falls to work together on bulk pricing opportunities, but “at this point in time, the co-ordination has not occurred.” She was seeking council approval for the $255,200 purchase of the new system from Trojan, but stressed, “this does not include the installation and removal of the existing system, which would be under separate contract.” Deputy Mayor Barb Tobin questioned if the removal of the old unit and the replacement of the new one would be seamless.
Dunlop explained that the UV3000 system is no longer supported.