Bonterra oil spill has passed Edmonton, utility says, but regulator records show this isn’t the first incident  Toronto StarEDMONTON—Days after a pipeline leak that spilled about 40,000 litres of saltwater and oil into a creek leading to Edmonton …

Cleanup of central Alberta oil spill expected to take 3 weeks  Global NewsBonterra Energy Corp. says it has 70 workers cleaning up the site of an oil emulsion leak from a pipeline into a creek that feeds the North Saskatchewan River in ... Read m …