Atco gas was in my neighbourhood doing some work. They had a loud white red truck working with them. The company on the truck said Hydrodig Edmonton. The workers were sitting in the truck smoming marijuana and i could smell it in my backyard. I peaked over the fence and seen the smoke blow out the window of the drivers seat My daughtet was playing in the back yard at the time and the smoke even entered my house thru the kitchen window. I should have called the police, but they left quickly after that.