Seven families remain out of their homes on Monday because of a pipeline rupture that sprayed crude oil around a neighbourhood in Burnaby, B.C., last week.

This comes as Paul Huddleston, a spokesman for Kinder Morgan, the company that owns the pipeline, said 80 per cent of the spill has been cleaned up.

About 232,000 litres of oil spewed like a geyser for nearly half an hour on July 24 when a backhoe pierced the pipeline.

Kinder Morgan has not released the maps of the pipeline publicly and the contractor doing the sewer upgrade work has yet to make any comment about the accident.

About 40 homes were evacuated because oil covered parts of the houses or their backyards.

Park open for swimming

Meanwhile, North Vancouver's Cates Park has re-opened for swimming.

The park had to be closed last week after the massive oil spill in North Burnaby migrated across Burrard Inlet and began washing up on the north shore.

Gineen Bertina, a communications officer with the District of North Vancouver, told CBC News the park cleanup has been completed but officials are continuing to watch the shoreline.

"This morning at about 9 a.m. our staff went down and had a look at Cates Park just to make sure that it was cleaned up totally. And they're quite satisfied that all the cleanup did take place," she said.

With files from the Canadian Press