Sewer Line Smoke Testing

Smoke Testing Sewer Lines September 9th – 12th 8:00 AM to 3:00 PM

The City of Bath will be conducting sanitary sewer surveys that will involve smoke testing of the sewer pipes in your neighborhood the week of September 9-12

HOW THIS AFFECTS YOU: Most of the work will be performed on public property, usually in the street right-of-way. However, some of these activities may involve personnel to walk across residential yards etc. within the right-of-way, and we would greatly appreciate your cooperation in this effort. Activities that require property owner involvement are detailed below.

SMOKE TESTING: A "SMOKE TEST" survey will assist our inspection crews in locating breaks and defects in your sewer system. The work includes blowing non-toxic smoke into the sewer collection system through the manholes. You may see smoke coming from the vent stacks and downspouts on houses, from holes in the ground, or from catch basins and drains. The smoke is NON-TOXIC, NON-STAINING, HAS NO ODOR, IS WHITE TO GRAY IN COLOR AND CREATES NO FIRE HAZARD. The smoke should not enter your home unless you have defective plumbing or dried-up drainpipes. We recommend that you pour a gallon of water into each drain prior to our testing.


If smoke enters your home or business during the testing, this is a good indicator that sewer gases may also be entering your home or business. Please notify our work crews on site or the City at (207) 443-8357.

IMPORTANT! If there is any individual in your home or business who has respiratory problems or is immobile, please notify the Public Works Department at (207) 443-8357 prior to testing.

 All field personnel will have fluorescent safety vests with the words “City of Bath” on the back of the vest in large print. If you would like to verify the identification of personnel in the field, please contact Chris Wallace with the City of Bath at (207) 443-8357 ext. 6120.