The city may consider dredging Mill Lake to reduce flood risk and increase water quality.

The city may consider dredging Mill Lake to reduce flood risk and increase water quality.

Mill Lake poses flood risk, dredging may be considered

City may consider storm sewer filters to improve water quality in lake

Mill Lake could flood nearby homes in the event of a significant flood, a new city report says.

That will lead staff to consider dredging the lake – a move that could both reduce flooding risk during the winter and improve its “somewhat poor” water quality.

In the event of a major once-in-100-year storm, “the potential of flooding is widespread” across the Willband Creek watershed that drains most of central Abbotsford, according to a research report completed for the city as it embarks on work to create a new stormwater management plan for the area.

Dredging Mill Lake would help increase the water body’s storage. It would also provide cooler water and increase oxygen levels.

But, first, the city would likely need to sample the sediments at the bottom of the lake to find out how polluted they are and how easy it would be to dispose of any muck that is dug out.

Locals once swam in Mill Lake, but its water quality is considered compromised, in part because of insufficient water circulation and stratification. The city report also suggests exploring the possibility of installing mechanical aerators.

The city could also take a simpler step to improve the water quality, by catching oil and grit that currently runs from storm sewers into the lake.

Such oil/grit separators are commonly used but require frequent maintenance and cleaning to stop them from clogging. The report suggests more sophisticated treatment options exist, but would cost more.

Do you have something to add to this story, or something else we should report on? Email:
tolsen@abbynews.com


@ty_olsen
Like us on Facebook and follow us on Twitter

Get local stories you won't find anywhere else right to your inbox.
Sign up here

Just Posted

Two teens were sent to hospital after being stabbed Saturday evening. (Shane MacKichan photo)
Two teens stabbed in Abbotsford

20-year-old man has been detained

The annual Make a Difference Sale in Abbotsford is moving online for 2021. (File photo)
Make a Difference Sale in Abbotsford goes virtual for 2021

Annual auction raises money for world hunger through Canadian Foodgrains Bank

The Bug Girl, written by seven-year-old Sophia Spencer, is being given to 500 B.C. classrooms as part of Canadian Agriculture Literacy Month. (Submitted photos)
Reading challenges part of Canadian Agriculture Literacy Month

Abbotsford-based BC Agriculture in the Classroom participates in 10th annual event

B.C. Supreme Court in Vancouver on Tuesday December 11, 2018. THE CANADIAN PRESS/Darryl Dyck
B.C.’s compromise on in-person worship at three churches called ‘absolutely unacceptable’

Would allow outdoor services of 25 or less by Langley, Abbotsford and Chilliwack churches

Police tape is shown in Toronto Tuesday, May 2, 2017. (Graeme Roy/The Canadian Press)
CRIME STOPPERS: ‘Most wanted’ for the week of Feb. 28

Crime Stoppers’ weekly list based on information provided by police investigators

A health worker holds a vial of AstraZeneca vaccine to be administered to members of the police at a COVID-19 vaccination center in Mainz, Germany, Thursday, Feb. 25, 2021. The federal state of Rhineland-Palatinate, start with the vaccination of police officers in internal police vaccination centers. (Andreas Arnold/dpa via AP)
B.C. officials to unveil new details of COVID vaccination plan Monday

Seniors and health-care workers who haven’t gotten their shot are next on the list

An investigation is underway after a man was shot and killed by Tofino RCMP in Opitsaht. (Black Press Media file photo)
Man shot and killed by RCMP near Tofino, police watchdog investigating

Investigation underway by Independent Investigations Office of British Columbia.

Baldy Mountain Resort was shut down on Saturday after a fatal workplace accident. (Baldy Mountain picture)
Jasmine and Gwen Donaldson are part of the CAT team working to reduce stigma for marginalized groups in Campbell River. Photo by Marc Kitteringham, Campbell River Mirror
Jasmine’s story: Stigma can be the hardest hurdle for those overcoming addiction

Recovering B.C. addict says welcome, connection and community key for rebuilding after drug habit

A Vancouver restaurant owner was found guilty of violating B.C.’s Human Rights Code by discriminating against customers on the basis of their race. (Pixabay)
Vancouver restaurant owner ordered to pay $4,000 to customers after racist remark

Referring to patrons as ‘you Arabs’ constitutes discrimination under B.C.’s Human Rights Code, ruling deems

Approximate location of the vehicle incident. (Google Maps)
Vehicle incident blocking Coquihalla traffic in both directions

Both directions of traffic stopped due to vehicle incident

Cannabis bought in British Columbia (Ashley Wadhwani/Black Press Media)
Is it time to start thinking about greener ways to package cannabis?

Packaging suppliers are still figuring eco-friendly and affordable packaging options that fit the mandates of Cannabis Regulations

Judith Uwamahoro is Black, approximately 4’7″ tall, 80 pounds and has short black hair and brown eyes. (Surrey RCMP handout)
UPDATED: Lower Mainland 9-year-old located after police make public plea

Judith Uwamahoro went missing Friday at around 4 p.m. in Surrey

Most Read