Part-Time Administrative Assistant – Richland Township Municipal Authority. Location. Gibsonia, PA | ⏳. Hours. 12 per week (with flexibility for coverage). The. Richland Township Municipal Authority of Allegheny County (RTMAAC). is seeking a. Part-Time Administrative Assistant. to support daily operations. This role involves customer service, administrative tasks, and program management for meter replacement, backflow compliance, billing, and eme...