British Columbia's Environment Assessment Office has fined Coastal GasLink Pipeline Ltd. $590,000 for "deficiencies" in the construction of its pipeline crossing the province.

The office says in a statement that 10 administrative penalties have been levied against the company for non-compliance with requirements of its environmental assessment certificate.

It says the fines come after problems with erosion and sediment control measures were identified by enforcement officers along the pipeline route across northern B.C. in April and May 2023.

The office says that the latest financial penalties reflect its escalation of enforcement due to repeated non-compliance of its requirements.

Four previous penalties have been issued for failing to control erosion and sediment valued at almost $800,000, while a fifth fine of $6,000 was handed out for providing false or misleading information.

The office says it prioritized its inspections along the 670-kilometre route by air and ground as a result of the continued concerns, leading to 59 warnings and 13 stop-work orders along the pipeline that has now been completed.