The Oak Ridge Public Works Department continues to use state-of-the-art technology to perform inspections of the city’s sewer system, a press release said.

This technology employs a sonar machine that emits a repeating series of tones, similar to a musical scale. In open areas, it can be heard over long distances. While harmless, the tones emitted by the machine are low enough in frequency that residents nearby may be able to feel and, in some instances, hear them.

Testing is ongoing, but it will be concentrated to certain areas depending upon weather constraints and other factors. This area includes Georgia Avenue to West Outer Drive north of Oak Ridge Turnpike and Cumberland View to Fairbanks Road south of the Turnpike. Residents will notice signs posted on main roads stating “Acoustic Sewer Inspection in Area” while crews are working in their neighborhoods.

Questions can be directed to the Public Works information line at (865) 425-3619 or by email to PubWorksDis@oakridgetn.gov.

More specific information may also be found on the city’s website at SewerProject.OakRidgeTN.gov/work-activities.