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Montreal

Montreal sewage dump starts tonight at midnight

Mayor Denis Coderre announces that Montreal will proceed tonight with its controversial plan to dump eight billion litres of raw sewage into the St. Lawrence River.

8 billion litres of sewage to go into St. Lawrence River, as new minister OK's plan with some limits

St. Lawrence sewage dump at midnight

9 years ago
Duration 1:47
Montreal to release 8 billion litres of raw sewage into water after getting OK from province

Mayor Denis Coderre has announcedthat Montreal will go ahead with its controversial sewage dump at midnight tonight.

The city has metconditions imposed by the new federal government for the city to proceed with its plan to dump eight billion litres of raw sewage into the St. Lawrence River.

Coderreand other city officials held a news conference to talk about the plan Tuesday morning at Montreal's city hall.

"If we could have avoided this choice, we would have done it," Coderre said.

He reiterated that the project is needed so the citycan complete essential infrastructure work, including repairs toa keysewer interceptor.

Quebec mayors blast Montreal,Environment Canada

A group of Quebec mayors held their own press conference Tuesday morning to express their dismay with thedecision, saying the City of Montreal did not consult enough with other municipalities.

"It's the best of the worst situations," said Bcancour'sJean-Guy Dubois.

The five mayors from Quebec regions asked that Ottawa appoint someone to oversee the St. Lawrence River. They also said theirmunicipalities should be financially compensated if the sewage dump has negative consequences.

City to monitor closely

If the work is not done, the interceptor will continue todeteriorateand eventually break, the mayor said.

"Know that this decision, as unpopular as it is was taken in a responsible manner," he said.

Montreal will perform frequent tests of the water before, during and after the seven-day sewage dump.

The city will also monitor 156 industrial companies and implement measures to reducetheir discharge.

During the dump, there will be a cleaning crew thatwill be there the entire time.

The measures willcost the city close to $2 million, said Coderre.

On Monday, federal Environment Minister Catherine McKenna said the city could proceed with its planonce it meets the federal conditions formonitoring and minimizingthe environmental impact.

What residents are asked to do

The city is also asking residents in affected areas to reduce their water consumption over the next week.

Precautionary measures also include not flushing items such as cigarettes, condoms and medication.

Any activity that involves direct contact with water will be prohibited from inMontreal's Southwest borough for nine days.The same restriction applies to the King Edward Quay sector for an undetermined amount of time.

Environment Canada conditions

Calling the city's plan "far from ideal," she agreed with the findings of an independent panel of scientists that the city's planned release this fall was preferable toan accidental release of wastewater caused by Montreal'sdecaying sewer system.

McKennasaid Montreal could proceed with the dump under these conditions,up until Dec. 5:

  • Improvements to the city's emergency management plan for the dump.
  • Improvedvisual surveillance of the discharge plume.
  • A more comprehensive cleanupplan foraffected areas.
  • Monitoring of the discharge's impact on the river's ecosystembefore, during and after the discharge.
  • A comprehensive review of the process leading up to the city's decision to dump the raw sewage.

The decision came down after an independent panel said the city should only proceed if it looks further into the environmental impact.

On Monday,Coderresaid heagreed with the conditions, and was confident city planners could meet them and proceed with the dump.

Why the sewage dump?

The cityannounced plans to dumpthe untreated wastewater into theSt. Lawrence River earlier this fall, as a part of construction work on theBonaventure Expressway.
The city has asked residents to reduce their water consumption during the sewage dump. (Charles Contant/CBC)

Montreal says it needs to shut down an interceptor a major sewer that collects the effluentfrom a network of other sewer lines on its waytothe watertreatment plant for maintenance and to link it toa new snow dump site.

Raw sewagethat would normally flow into the interceptor will be diverted directly into the St.Lawrence River as a result.

Both Coderre and Quebec PremierPhilippe Couillard have supported the plan since earlier this fall, calling it the best option available.

What areas are affected?

The wastewater from seven different Montreal boroughs and four towns that are directly linked to the interceptor will flow freely into the river.

The boroughs include Lachine, LaSalle, Verdun, the South West, Ville-Marie, Outremont andMercierHochelaga-Maisonneuve.

Montreal West, Cote-St-Luc, Mount Royal and Westmount are also directly linked to the interceptor.

The sewage dump also partially affects five other boroughs and three towns.

Hover over borough or city to see what percentage of thesewage from each is to be diverted.

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