Aquifer testing estimates groundwater-flow rates and storage volumes that control contaminant transport, water supplies, and dewatering. These important quantities cannot be measured directly and are estimated indirectly from aquifer-test results. Transmissivity and storage coefficient are principal results that define behavior of groundwater system in response to pumping. Volume of water displaced or rate of water pumped are the principal controls that allow estimation of transmissivity and storage coefficient by fitting analytical or numerical solutions to observed water-level changes.
The 1-hour, webinar will cover fundamental concepts of aquifer-system responses to pumping and slugging wells. Material will emphasize practical aspects of analyzing and interpreting slug test and single-well pumping aquifer tests. Field conditions and limitations will be considered for measuring water-level and discharge data. Methods for detecting small drawdowns (<0.1 ft) during multiple-well aquifer tests will be presented. Guidance and expectations for aquifer-test reporting will be discussed.