The ambient noise level in indoor swimming pools can be very high and become a health and safety problem for workers, regardless of whether they are supervisors, monitors or trainers. Indoor pools are places where communication is essential, not only for teaching or for disseminating safety instructions, but also for communication between supervisors in the event of accidents, for example. The authors measured the level of noise exposure of workers assigned to a few representative jobs in order to document the situation in a preliminary way. Ambient noise measurements were taken to complete the dosimetric results. Although of limited scope, this study’s preliminary results reveal the noise-related OHS problem in indoor pools.