The City of St. Louis will be conducting smoke testing of the sanitary sewer in the 100 and 200 block of N. Mill St on August 17, 2021. 
The City of St. Louis will be conducting smoke testing of the sanitary sewer in the 100 and 200 block of N. Mill St on August 17, 2021.
Smoke testing involves blowing smoke through the sanitary sewers to find potential areas of inflow and infiltration of stormwater in the sanitary sewer system. You may see smoke coming from vent stacks on buildings or holes in the ground. The smoke varies in color from white to gray depending on density and lighting. It is NON-TOXIC, NON-STAINING, HAS A SLIGHTLY SWEET ODOR AND CREATES NO FIRE HAZARD. The smoke should not enter your home or business unless the plumbing is not functioning properly. If you have any seldom-used drains, please pour water in the drain to fill the trap prior to the test to prevent smoke from entering the building.
Homeowners or business owners do not need to be present during the investigation, which will be conducted during normal business hours. Workers will not be inside your home. However, you MUST POUR WATER DOWN SELDOM USED DRAINS PRIOR TO THE TESTING; especially floor drains in your home or business. This should prevent smoke from entering your home and setting off smoke alarms unnecessarily.
Smoke testing will be conducted by OHM Advisors. Crews will be in marked vehicles and have identification. Your cooperation is greatly appreciated.
Questions may be directed to:
Nancy Russell
OHM – Project Engineer
(313) 481-1250
Keith Risdon
City of St. Louis – Public Services Director
(989) 681-2137 ext. 101
Address/Location
Saint Louis, MI Police Department
300 N Mill St
Saint Louis, MI 48880
Contact
Emergency: 9-1-1
Non-emergencies: 989-681-5285
