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Conrad G. Leszkiewicz, PhD, PE, PG
Civil Engineer and Geologist


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PDHonline Course Provider Biography

Dr. Leszkiewicz graduated from the University of New Hampshire (UNH) in 1973 with a Bachelor of Science degree in Hydrology. He served as an officer in the United States Army for over 7 years before he obtained his Master of Science degree in Civil Engineering, and subsequently his Doctoral degree in Civil Engineering from UNH. He is a registered Professional Engineer in Massachusetts, Connecticut, New Hampshire, and Georgia, and a Professional Geologist in New Hampshire. He has more than 30 years of experience in the fields of civil engineering and geohydrology through his work on a variety of projects of different scope and sizes, including commercial, industrial and Superfund sites. He has led and directed teams of engineers and geologists and he has also successfully worked as an independent consultant. In this capacity, he has often taught and instructed engineers and geologists a variety of subjects and technical skills.

Dr. Leszkiewicz’s work experience includes a broad array of groundwater investigations, hydrologic and hydraulic analyses, and modeling. It includes the design and implementation of complex geohydrological investigations to support delineation of contaminant plumes in groundwater in a range of aquifer settings, including unconsolidated and fractured bedrock environments. He has also conducted detailed analyses assessing and modeling the transport and fate of contaminants in groundwater. In conjunction with those activities, he has designed and implemented remedial systems to capture and remove contaminated groundwater for treatment. Additionally, he has conducted investigations and studies into aquifers for water-supply development which includes conducting aquifer testing for sustained yield; delineation of wellhead protection areas through modeling; and identification of aquifer boundaries and recharge zones.


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Course No. Courses Provided by Conrad G. Leszkiewicz, PhD, PE, PG PDH Units Current Price Buy Quiz
C691 Groundwater Engineering for Water Supplies - Geohydrology Fundamentals 10 $249 Buy Quiz
C692 Groundwater Engineering for Water Supplies - Aquifer Tests and Analyses 12 $299 Buy Quiz
C693 Groundwater Engineering for Water Supplies - Design, Construction, and Operation of Water Supply Wells 10 $249 Buy Quiz
C699 Groundwater Engineering for Water Supplies - Groundwater Availability in the United States 4 $119 Buy Quiz
C700 Groundwater Engineering for Water Supplies - Principal Aquifers of the United States 4 $119 Buy Quiz
C701 Groundwater Engineering for Water Supplies - The High Plains (Ogallala) Aquifer 6 $149 Buy Quiz
C702 Groundwater Engineering for Water Supplies - The California Central Valley Aquifer System 7 $169 Buy Quiz
C703 Groundwater Engineering for Water Supplies - Geohydrology Case Study: An Unconfined Aquifer System 5 $129 Buy Quiz
C704 Groundwater Engineering for Water Supplies - Geohydrology Case Study: A Confined Aquifer System 5 $129 Buy Quiz
C712 Groundwater Engineering for Water Supplies - The Mississippi Embayment Aquifer System 6 $149 Buy Quiz
C713 Groundwater Engineering for Water Supplies - The Basin and Range Basin-Fill Aquifer System 7 $169 Buy Quiz
C714 Groundwater Engineering for Water Supplies - The Floridan Aquifer System 5 $129 Buy Quiz
C917 Groundwater Engineering for Water Supplies Contaminant Fate and Transport in Groundwater 7 $179 Buy Quiz
C918 Groundwater Engineering for Water Supplies Delineating Wellhead Protection Areas 7 $179 Buy Quiz
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