Performs difficult skilled technical and administrative work assisting with the management of the Water Supply & Treatment Division including the Raw Water Supply Facility Operations, Water Treatment Plant Operations, Distribution System Pumping Facilities, Residuals De-Watering Facility and Preventative Maintenance Management Program; does related work as required. Work is performed under the general direction of the Manager - Water Supply & Treatment Division (WS&T). Continuous supervision is exercised over assigned staff.