Best Practices for Reuse Systems and Water Reduction Strategies

Are there any "best practice" resources for manufacturing regarding reuse systems (cooling towers) and water reduction strategies? We are thinking about creating a water re-use and conservation knowledge hub in Southwest US. Would like to learn more about what is available in the open market for "best practices" that manufacturing companies and others can consider to reduce water usage (and save money). We are also interested in landscaping water monitoring and reduction.