Know the risks of cross bores before you attempt to clear a blocked sewer line.

Natural gas lines can sometimes intersect with sewer lines beyond the outside wall of your home or building. In these cases, clearing a blocked sewer line with motorized or water jetting equipment could damage the natural gas line and lead to a gas leak, creating an immediate safety risk for you and others. When left undisturbed, cross bores do NOT pose a safety hazard to anyone.

Before clearing a blocked sewer line, call Ontario One Call at 1-800-400-2255 to schedule a free sewer safety inspection.