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Sewer Line Smoke Testing, June 8 - July 31, 2020

The City of St. Peters has contracted with RJN Group Inc. to conduct smoke testing of the sanitary sewer lines in the areas of Four Winds, part of Timberbrook, Englewood, Sunny Hills and Deer Grove. Smoke testing locates defects in the sanitary sewer system. Information gained from the study will be used to improve the sewer system in keeping with state and federal regulations.


Notices will be placed on doors for the property owners in the area undergoing testing. The testing is scheduled to take place between June 8 and July 31, 2020, weather permitting. Testing will take a few days in each area tested.


Workers will be accessing manholes to “smoke test” sewers and locate defects in the system. The smoke is nontoxic, harmless, and does not create a fire hazard.



As we noted, smoke used for testing sanitary sewers is not harmful. The smoke should not enter your home or business unless you have defective plumbing or dried-up drain traps. If you have seldom used drains, please pour water in the drain to fill the trap, which should prevent smoke from entering. Drain traps should always be filled with water to prevent sewer gases or odors from entering the building. If the smoke does enter your home or business, the potential exists for sewer gases to also enter your home or business and you should consult your licensed plumber to fix the problem.


If smoke is found in the building, simply open some windows and the smoke will dissipate quickly. Also, please notify the testing personnel from RJN Group working in the neighborhood that smoke has been found.


We anticipate the smoke testing will require a few days in each area we test. Your cooperation is appreciated. The information gained from this study will be used to improve the sewer system in keeping with state and federal regulations.



If you need special assistance or would like more information concerning schedules or technical information, please contact: Burcin Akkaya, RJN Group, Project Manager, (314) 250-5127; Anthony Vitale, RJN Group, Field Technician, (314) 412-3219; or Lisa Johnson, City of St. Peters, Field Foreman, (636) 477-6600, ext. 1368.



We will post updates on this web page when there is news about which streets are scheduled for smoke testing. Subscribe to this web page below to receive notifications.


Sanitary Sewer Line Smoke Testing Schedule for RJN Crews*


    • Most North: Mexico Rd
    • Most East:  Devondale Pl
    • Most South: Goldeneye Ct
    • Most West: W Sunny Hill Blvd

    *All schedules are dependent on favorable weather.