The Emerald Coast Utilities Authority is conducting smoke testing for sewer system leak detection in the Cantonment area into next week. The testing areas include Booker Street to Muscogee Road east to International Paper, and Muscogee Road to Well Line Road to Highway 29. White smoke will be circulated into the sewer lines and manholes to locate broken pipes and other plumbing defects, and will exit from vent pipes on home roofs. The smoke is non-toxic, leaves no residue, and creates no fire hazard and will not enter the house unless there is defective plumbing present or the drain traps are dry.