Associate, Senior Hydrogeologist, Technical Specialist, Project Manager
GHD Services, Inc.
Walter is an Associate, Senior Hydrogeologist, Technical Specialist, and Project Manager with over 31 years of experience pertaining to environmental, geological, hydrogeological, and geophysical investigations. Walter has been with GHD for 29 years and specializes in the design, coordination, management, and implementation of large scale environmental investigations and remediation projects. He has extensive experience in completing soil and groundwater investigations at Sites where light and dense non aqueous phase liquids (NAPLs) are present. Walter has been the Project Manager, Geologist and/or Project Coordinator on over 35 Superfund projects across the country. Walter also has experience in the design/implementation of groundwater remediation systems, residential/industrial lead cleanups, decommissioning and demolition projects.
SESSION CHAIR - Getting Over It: Overcoming Site Challenges
PLATFORM PRESENTER - Getting Through Rehab: Injection/Extraction Wells
Installation and Maintenance Techniques to Ensure Long-Term Use of Monitoring Wells
Monitoring wells are used to characterize groundwater chemistry and obtain hydrogeological information. Proper installation and maintenance techniques are critical to ensure that quality/defendable data is collected over the life of the project, which may extend for decades. Best practice installation techniques should be employed during the monitoring well design/installation process to ensure the long-term collection of quality data. This presentation will identify some key but commonly overlooked installation steps to prolong the performance and longevity of monitoring wells.
Monitoring well inspection and maintenance requirements are required under most state and federal regulatory programs. Monitoring wells are subject to the elements, traffic, biologic stresses and subsurface conditions. At some time most monitoring wells will require some type of maintenance. Regular maintenance of monitoring wells, structurally and hydrologically, is required to preserve the performance and longevity of the well. This presentation will review several common monitoring well maintenance activities and discuss their advantages. The importance of regular monitoring well inspections will also be discussed.