PUMPING TESTS FOR AQUIFER EVALUATION, PART 4:
Foundations of Pumping Test Interpretation:
2. Interpretation of Pumping Tests in Real Aquifers
Discover and learn the most up-to-date information about
aquifer pumping test techniques from some of the most
recognized authorities in ground water.
Aquifer Pumping Tests are a key element to site characterization, water resources assessment and remediation system design. Even when you are confident of the geologic conditions, you may have difficulty designing effective aquifer tests, running field equipment or selecting the best available model to analyze the test data. Where do you turn for help with aquifer testing?
Midwest GeoSciences Group & In-Situ, Inc. can help! We have designed a powerful six-module webinar series about pumping test design, field methods and data analysis techniques.This course will highlight key steps for modernizing your aquifer testing from beginning to end.
MODULE FOUR teaches the considerations for selecting the most appropriate analysis strategy along with strategies for deciphering pumping test data in heterogeneous aquifers.
A key assumption underlying almost all solutions used to match drawdown data is that the aquifer is homogeneous. However, a visit to any outcrop of soil or rock should be enough to convince any hydrogeologist that the subsurface is complex.
Real aquifers are heterogeneous. Realistic aquifer heterogeneity generally gives rise to responses at individual observation wells that are variable. Inferences of aquifer properties that are drawn from analyses of the responses at individual monitoring wells are frequently inconsistent. When different estimates of aquifer properties are obtained the only definitive finding is that the conceptual model underlying the analysis is violated. In these cases, none of the individual estimates of transmissivity may be reliable.
This course module presents a possible approach that makes it possible to look beyond the variations in the responses of individual wells to estimate the representative average transmissivity of heterogeneous aquifers. The interpretation of pumping tests in heterogeneous aquifers is illustrated with case studies.
Outline:
- The challenge of heterogeneity
- An approach for interpreting pumping tests in heterogeneous aquifers
- The interpretation of pumping tests in heterogeneous aquifers: The statistically homogeneous case
- The interpretation of pumping tests in heterogeneous aquifers: Aquifers with distinct zones of different transmissivity
- The significance of the composite plot
- Summary of key points
- References
Proficiency Test:
Confirm your knowledge after the course module with a self-test.
Register now for this unique online-offline course
that presents key insights about aquifer pumping tests
that are found nowhere else online.
Whether you want to apply aquifer pumping tests to hydrogeologic characterization, water supply development or remediation design, this Online-Offline Course will provide attendees with information that is not available elsewhere on the web.
Instructors Bio
Christopher J. Neville, M.Sc., P.Eng.
Mr. Neville is Chief Hydrogeologist with S.S. Papadopulos & Associates, Inc. He has over thirty years of experience in solving groundwater problems. His specialization is in the interpretation of hydrogeologic data, and the development and application of analytical and numerical techniques to analyze groundwater problems in complex granular and fractured porous media. Mr. Neville received his Bachelor of Engineering degree (Civil) in 1985 from McGill University and his Master of Science degree (Earth Sciences) from the University of Waterloo in 1992.
