Pavement ants

I have a major infestation in 2 locations under my walkway and front steps in the form of pavement ants, how do I go about ridding myself of this issue. I do not have any pic at this time but I do know that 100% what they are. Please if u can any advice would be great. Vancouver, BC

The Utah state extension service has an excellent fact sheet on pavement ants, it can be seen at Pavement Ant Fact Sheet . Additional information can be found at Pavement Ants Self Help Control .