1. (a) All three-phase motors must have phase failure protection.
2. (b) Instrumentation and monitoring equipment must have power surge protection.
3. (c) A facility must conduct fault monitoring and reporting on high wet well, power interruption, disinfection failure, blower failure, and return sludge pumping failure.
4. (d) For a facility not staffed 24 hours a day, a telemetry with battery back-up or supervisory control and data acquisition system with battery backup must be able to notify an operator of a malfunction at any time.

Source Note:The provisions of this §217.161 adopted to be effective August 28, 2008, 33 TexReg 6843.