This document provides an introduction and overview for a training on wastewater management and protecting drinking water sources. The objectives of the training are outlined, including understanding threats from wastewater like septic systems, wastewater treatment options, project planning activities, and attracting stakeholders. The training overview lists topics that will be covered such as wastewater treatment, onsite wastewater systems, advanced treatment options, and characterization of problems. Additional resources are also listed to supplement the training. Tips are provided for effective training delivery, including knowing the audience, using examples and exercises, and making the content locally relevant. Potential audience types for the training are also outlined.