Mr. Van Riessen serves as Geotechnical Services Manager for Kruger Technologies, Inc. His responsibilities include quality assurance of technical reports, providing technical expertise, directing management and design for a variety of geotechnical and environmental projects. Specific areas of expertise include technical evaluation and design of deep and shallow foundation systems, earth retaining structures, embankments and dams.

Mr. Van Riessen has recently served as Vice President and engineering technical director for Geotechnical Services, Inc. He prepared foundation system analyses, project design manuals, geotechnical investigations and reports, and technical specifications for construction contracts. Prior to joining GSI, Mr. Van Riessen was associated with two regional geotechnical firms, where he functioned within the roles of office manager and senior engineer. From 1979 to 1994, Mr. Van Riessen was employed by Black & Veatch, a large national consulting engineering firm, as the geotechnical engineering supervisor for the Power Division’s Structural Engineering Department. Prior to his engagement with Black & Veatch, Mr. Van Riessen served as a staff geotechnical /civil engineer with Burns and McDonnell Engineers-Architects from 1975-1979. He has co-authored technical paper on the evaluation of large-scale footing load tests on structural fill and the performance of power station foundations founded on a structural fill in Utah.

He also served on the Geotechnical Activities Committee of the Kansas City Section of ASCE. His thesis addressed the evaluation of the elastic modulus of soils by means of field and laboratory tests.

Mr. Bettinger has 14 years of experience and currently serves as environmental services manager for KTI. His duties include marketing of environmental services, proposal submittal and report preparation. Mr. Bettinger has performed more than 700 Phase I environmental assessments on sites ranging from undeveloped, agricultural/pastureland to manufacturing and industrial facilities.

Mr. Bettinger has completed a number of underground storage tank closures in Missouri and Kansas. Phase II investigations have included hydrocarbon plume delineation, monitoring well installation, groundwater sampling, and asbestos surveys and sampling. He served as project manager for a multi-year, hazardous waste investigation and remediation project at the United States Federal Penitentiary in Leavenworth, Kansas. Other projects include Land of Oz Development (preliminaries), WaterTower 2000 for the City of Manhattan, Kansas; Performing Arts Center, Kauffman family Preliminaries, Kansas City, Missouri; as well as numerous plants, office buildings and industrial parks.