Kerosene was dumped into a manhole in the Gorge Waterway last month, according to the Township of Esquimalt.
The township conducted an investigation after crews noticed the spill on the waterway on Nov. 30. The substance has been identified as kerosene and was traced back to Colville Road and Carrie Street.
The spill was a one-time illegal discharge into a manhole.
Engineering and public works crews have containd the spill at the mouth of the creek at the end of Sioux Place, west of Gorge Park.
The township is reminding residents to dispose of such substances in a “responsible and legal manner,” and are encouraged to call the public works department if they notice anyone pouring a liquid into a manhole.