Fuel has seeped into Sheldon Creek in Burlington after a tractor trailer rolled over Monday night, according to the Ontario Ministry of the Environment.

“Reports from the site indicate there is a sheen in the creek and some fuel in the catch basins which is being vacuumed out,” said ministry spokesperson Kate Jordan.

The ministry was called to the scene on Monday after the truck flipped on Harvester Road near Century Drive. Ministry workers placed containment booms in the creek to prevent any fuel from flowing downstream. Crews were on site Tuesday to clean up and assess the impact to the environment, Jordan said, adding the Oakville water treatment plant downstream has been notified. Police advised residents in the area to avoid the creek and keep their pets away from the water until the clean up process is complete.

There were no traces of fuel detected at the closest water treatment plant, according to Kiyoshi Oka, Halton region director of water services. He said the plant's intake is out in Lake Ontario at a depth of 17 metres, meaning even if some fuel had run downstream, it likely wouldn't have made it to the plant.

Police crews have righted and are in the process of removing the tractor trailer. Around 8:30 p.m. Monday, the truck driver misjudged a curve causing the truck to flip onto its side, according to Halton regional police Staff Sgt. Brett Wilkinson. The driver had minor injuries that were treated on site.

No other vehicles were involved, but the rollover spilled diesel and gasoline onto the roadway, which is close to Sheldon Creek.