William C. Lauer is an internationally recognized authority on treatment methods, drinking water quality, distribution system operations, drinking water health effects, and water reuse. Authoring and editing more than 25 technical books and 70 articles on these subjects have established Mr. Lauer as a leader in the drinking water profession. He thus served as an expert advisor to the Environmental Protection Agency, the National Aeronautics and Space Administration (NASA) about drinking water reuse in the International Space Station; the National Academy of Science, and the Government of Singapore NeWater potable reuse program. Lauer was the Project Manager for the ten-year, $30 million Denver Direct Potable Water Reuse Demonstration Project. In this position he directed the Project to evaluate the feasibility of converting wastewater to drinking water to augment Denver's water supply.