Temporary UV Treatment

The Comox Valley Regional District board has approved the purchase and installation of ultraviolet (UV) treatment for the Comox Valley Water System, to be installed at the existing chlorination station.  This temporary system will be operational in February 2018 and is expected to reduce boil water notices by approximately 80%.

The UV treatment is considered an interim measure until the new water treatment plant is built. Once the plant is operational in 2021, turbidity related boil water notices will be eliminated completely.

Read the press release here.

Quick Facts:

  • By adding UV treatment at the existing facility, the threshold for boil-water notices is increased from 1.0 nephelometric turbidity unit (NTU) to 3.0 NTU.

  • In recent years, around 80% of boil water notices have been within this range – these will be eliminated with the new treatment.

  • The UV treatment system and installation are estimated to cost under $1 million.

  • The equipment can be moved to the new water treatment facility, once it is constructed, for additional cost savings.

  • The new treatment will offer interim relief to boil water notices, but is not a long-term solution. A new water treatment system is still required to address reliable, safe water supply issues in the long-term.

For more information about the Comox Valley Water Treatment Project please see the following documents: