The City of Grande Prairie is winding down remediation activities following the petroleum hydrocarbon release reported in the Bear River on July 24.

Crews have continued cleanup and remediation work in the affected area between Maskwoteh Park and the Grande Prairie Museum & Heritage Village.

While there is no immediate risk to the public, residents are asked to continue avoiding recreation in the affected area and keep children and pets out of the water until final laboratory results are received and the containment booms have been removed. 

Preliminary analysis indicates the substance was weathered diesel or hydraulic oil. 

The exact source and volume of the release remain unknown. Most stormwater in Grande Prairie flows untreated from streets and properties into storm ponds or local waterways, meaning substances entering catch basins and roadside drains can quickly reach the Bear River.

The City thanks the resident who reported the release. Their prompt call allowed crews to act quickly, fully contain the substance within approximately two hours and reduce potential environmental impacts.

The City’s Drainage Bylaw C-1443 prohibits fuels, oils, chemicals and other harmful substances from entering the stormwater system.

Spills and environmental concerns can be reported during business hours by calling 311, emailing info@cityofgp.com or submitting a request through AccessGP. Call 911 when a spill presents an immediate risk to public safety or requires an emergency response.

Learn more about Grande Prairie’s drainage and stormwater system at cityofgp.com/roads-transportation/drainage.