This course is intended to provide students with basics of hydraulics as applicable to the operation of water and wastewater systems. The basic concepts in flow, detention time, pressure, energy, head and power are discussed first. Based on this students are introduced to the use of continuity and energy concepts. The application of continuity and energy equation is illustrated by numerical problems from the areas of water and wastewater. The main objective of the course is to lay a sound foundation in hydraulics concepts as required to understand and apply to the operation of water and wastewater systems. This will allow students to get ready for hydraulic component in various levels of operator certification examinations of the Ontario Ministry of Environment.