Comox Valley boil water notice expected to last days

People in British Columbia's Comox Valley will likely have to boil their water until at least the end of the week.

The ComoxValley Regional District says water quality was affected by recent heavy rainfall, which sent silt and other surface contaminants into ComoxLake and the Puntledge River.

"We're recommending to get your water to a rolling boil for a minute," said Mike Herschmiller, manager of water services for the CVRD. "That will kill any potential pathogens."

About 45,000 people are affectedin Courtenay and Comox, along with people livingin theComox Valley, Arden, Marsden/Camco, Greaves Crescentand England Road service areas.

Herschmillersays it's unclear how much longer the boil water notice will last.

"We're expecting two more days of rainstorms tomorrow and Wednesday. So this one could potentially last a week, or longer."

Ongoing problem

It's not the first time the CVRDhas dealt with this type of contamination in the water supply.

"This is our tenth turbidity-related notice since October 2014," Herschmiller said.

Herschmiller says a major storm that year, which flooded parts of Courtenay,drew attention to the problem.

"We found there's a lot of turbidity coming into [Comox] Lake more than we ever realized," he said.

TheComoxValley doesn't currently meet provincial guidelines for surface water treatment.

Herschmillersays the districtuses chlorination as itssingle method of disinfection, while B.C.guidelines require two forms of disinfection.

The regional district is working on plansto upgrade its water treatment system.

New water treatment system coming

The CVRDis developing both a short-term and a long-term solution to its water disinfectionwoes.

Constructionis expected to begin next month on aUV treatment system, which is expected to be ready by February.

The UV system will later be incorporated into a major filtration and water conveyance system, scheduled to be built by 2020 or 2021.The project is estimated to cost $110.6 million.

Herschmiller says the large scale of the project has kept the CVRDfrom moving forward more quickly.

"When you're dealing with a hundred-plus million dollar project, you do not want to stick your shovel into the wrong spot," he said. "There's a lot of studies and a lot of work that needs to go into it.

"It is truly pedal to the metal. We are moving forward as fast as we can. But unfortunately, it is not a quick process."