What is the FMS action level for bacteria in product water exiting the RO?

The FMS action level for bacteria in product water exiting the reverse osmosis (RO) system is established at 20 cfu/ml. This level is significant because it serves as a threshold that prompts further investigation or corrective actions to ensure water quality and patient safety. It reflects a balance between maintaining a high standard of microbial control while recognizing the limits of detection and variability in water treatment processes.

Maintaining bacteria levels below this threshold is crucial for preventing contamination that could potentially jeopardize patient health, particularly in clinical settings such as dialysis. When levels approach or exceed this action level, it indicates a need for immediate attention, whether that be increased monitoring, system maintenance, or operational changes to the RO process. Therefore, knowing this action level is essential for ensuring compliance with safety standards and best practices in water treatment.