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Books & Study Guides Explore WEF's peer-reviewed standards and publications—trusted resources that empower water quality professionals with proven technical practices, practical procedures, and career-advancing insights...

A comprehensive, practical reference bringing together WEF's trusted Operator Essentials articles on treatment processes, equipment, maintenance, and safety. TheOperator Essentials: What Every Operator Needs to...

Practical, field-tested guidance for safely operating, maintaining, and managing biogas and renewable natural gas (RNG) facilities at water resource recovery facilities. Guidelines for the Safe...

Practical, authoritative guidance for evaluating, treating, reusing, and disposing of complex industrial and hazardous wastewater, updated with current practices, emerging technologies, and regulatory considerations. Industrial...

A study guide with updated Need-to-Know Criteria, sample exam questions, and practical test-taking tips to help collection system operators prepare with confidence for certification. WEF/WPI/C2EP...

This map showcases real-world case studies from around the globe demonstrating circular water economy practices. Each point represents a project categorized under one of the...

Member Associations WEF Member Associations offer global members technical conferences, operator training, certification, legislative updates, and educational programs to advance water quality expertise. WEF’s Member...

2026 WEF Award Winners WEF is honored to annually recognize and congratulate those who make a lasting impact within the water community in many ways....

Ralph ExtonExecutive Director John IkedaChief Mission Officer Karen PowderlyChief Financial Officer Joe CarneyManaging Director, IT & Digital Experience Steve DyeManaging Director, Government Affairs Steve HamaiSenior...