The ASTM D5092/D5092M-16R24 Standard Practice for Design and Installation of Groundwater Monitoring Wells is a standard practice that provides comprehensive guidance for the proper design and installation of groundwater monitoring wells. It outlines best practices to ensure that wells are constructed to accurately monitor groundwater quality and quantity while minimizing contamination risks. The standard covers site selection, well materials, drilling methods, well development, and installation procedures to achieve reliable, representative groundwater samples. By following these guidelines, practitioners can ensure long-term functionality and data integrity of monitoring wells used in environmental investigations, regulatory compliance, and remediation projects.