NEAR INNISFAIL, Alta. -- Residents impacted by a massive oil spill in a central Alberta water way will be compensated, vows the company that owns the ruptured pipeline.

Plains Midstream Canada told media at the Dickson dam near Innisfail Tuesday that water samples are well within provincial guidelines for drinking water and cleanup efforts have almost been completed.

"With containment largely in place, our emphasis has turned to cleanup and consultation with landowners, and trying to get everyone as aware as possible as to what the potential impacts are and what our cleanup strategies have been," said Stephen Bart, vice president of crude oil operations.

On June 7, up to 475,000 litres of oil flooded into a river popular with sport fishers near Sundre, about 130 km northwest of Calgary, spreading into a nearby lake.

The company has since been monitoring 18 locations on the Red Deer River and Glennifer Lake twice a day while continuing to contain the spill with booms.

Bart confirmed there was little environmental damage done and so far there has been only one report of a goose covered in oil.

The Energy Resources Conservation Board, an independent government agency, is investigating the cause of the spill.

"ERCB is on site to ensure the appropriate measures to contain and clean up the spill are in place," said the board's spokeswoman Cara Tobin.

Bart said the company is now entering into a series of consultations with affected residents to discuss compensation.

He confirmed his company will compensate anyone affected.