Toronto Water is responsible for cutting grass next to watercourses that are not parks, in all Districts (this includes the Westview Greenbelt).
Grass is cut approximately once a month, and litter is collected prior to the cut (May - September)
Redbank Greenbelt is maintained by the City's Parks, Forestry & Recreation division. Please see the following links:
Note: In 2012, many TW watercourses are being naturalized, no maintenance (grass cutting)