The Alliance for Water Efficiency assessed five representative industries within the Great Lakes watershed that are supplied with treated drinking water and that discharge to a local wastewater utility. The assessments that were conducted focused on four factors: Potential water conservation opportunities; Benefits and costs from the water user s perspective; The environmental benefits of undertaking those conservation opportunities; and A strategy for providing funding assistance to industries. The effort found significant opportunities for water savings in each of the industrial sites assessed. In these five sites alone, 66 million gallons per year could be saved, most of which would also reduce wastewater flows in a roughly equal amount. The payback time for these improvements ranged from .2 years to 5.8 years, averaging 1.2 years. The average simple return on investment across the full project was 84%.