
Collingwood Water Treatment Plant
Client: Tasman District Council
Completion Date: May 2021
Value: $516K
The Project
Process Flow Limited were contracted to upgrade the existing treatment plant at Collingwood to include UV disinfection. This allows the Tasman District Council to have a 3-log credit treatment system under the Drinking Water Standards of New Zealand (DWSNZ)
The following was provided as part of the project:
New Duty/Standby UV Disinfection
New Chlorine contact tank and associated pipework
Upgraded water quality monitoring systems
Key Points
The UV disinfection system is housed in a concrete modular building and was constructed and commissioned in Process Flow’s yard in Nelson.
Due to the remote location of the site, the project was ideally suited to a modular plant, and this resulted in less than 20 construction days on site.




