Basic course in millwright theory for operators of water and wastewater treatment plants. Covers knowledge most applicable to plant equipment maintenance: pumps, valves, motors and alignment, seals and bearings, bolts and fasteners, and plant safety concepts including cutting, welding, and material handling and rigging. A final module provides hands-on experience with a pilot drinking water treatment plant, where students produce water and learn major components, treatment process steps, and common problems and solutions.