11/12/2015 11:39 EST | Updated 11/12/2016 00:12 EST

Montreal Mayor Denis Coderre heads underground to inspect sewer repair work

Montreal Mayor Denis Coderre is heading below ground to inspect sewer repair work that has made it necessary to discharge of eight billion litres of raw sewage into the St. Lawrence River.

Coderre is heading down to get a closer look at today as city crews are into their second day of work.

Sewers started diverting raw sewage on Wednesday morning away from the aging interceptor and directly into the river.

Coderre said the discharge will last one week as city workers conduct significant underground infrastructure repairs and relocate a snow chute below an expressway.

Scientists concluded as long as the discharge occurred before the winter months the long-term effects on water quality and animal life in the river will be limited.

The first water quality tests are expected in the next 48 hours.

The Canadian Press