Imperial Oil Limited - Environmental Compliance Approval (sewage)

Instrument type: Environmental Compliance Approval (sewage)

ERO number
026-0209
Ministry reference number
5850-DR6KG4
Notice type
Instrument
Act
Environmental Protection Act, R.S.O. 1990
Posted by
Ministry of the Environment, Conservation and Parks
Notice stage
Proposal
Proposal posted
Comment period
February 25, 2026 - April 11, 2026 (45 days) Open
Last updated

This consultation closes at 11:59 p.m. on:
April 11, 2026

Proposal summary

This proposal is for an amendment to the Environmental Compliance Approval No. 8277-ABTHF4 (industrial sewage) for Imperial Oil Limited.

Location details

Site address

602 Christina Street South
Sarnia, ON
Canada

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Proponent(s)

Imperial Oil Limited
602 Christina Street South
P.O. Box 3004
Sarnia, ON
N7T 7M5
Canada

Proposal details

This proposal is for an amendment to the Environmental Compliance Approval No. 8277-ABTHF4 (industrial sewage) for Imperial Oil Limited. This amendment application is to establish sewage works for the collection, treatment and disposal of up to 0.219 million cubic metres of process water per year at 602 Christina Street South, Sarnia, Ontario.

The proposed sewage works consist of adding treated effluent discharge (containing sodium sulphate) from a new wet gas scrubber (WGS) purge treatment unit (PTU) and revising the existing discharge criteria for the downstream outfall. The sewage will ultimately discharge to the St. Clair River.

Supporting materials

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Client Services and Permissions Branch
Address

135 St. Clair Avenue West
Floor 1
Toronto, ON
M4V 1P5
Canada

Office phone number

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