This document is the student manual for a self-study course on managerial principles as they relate to the water or wastewater treatment field. Each of the seven lessons is concerned with a segment of the management process and corresponds to reading material in the accompanying text. An objective and subjective test portion is included in each lesson. Topic areas are: introduction; responsibility toward delegation and motivation; problem-solving and communication skills; planning and organizing; staffing; responsibility in directing and controlling; and relations with the unions and employees. A management-audit format is provided in the appendix. (CS)