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Thomas J. Matisko

President, Operations Manager
Materials Testing, Geotechnical Investigations, & Construction Overisght

Somerset Office (814) 266-6402
tmatisko@earthtechinc.net

Experience:
Geotechnical field services and construction inspection/testing
Formerly WACEL Concrete Certification Level I & Level II, Soils Level I & II, Structural Inspection Level I
Troxler Nuclear Gauge Certification

Ryan D. Stairs, P.G. (PA)

Vice President, Operations Manager
Geology & Mine Permitting/Planning

Somerset Office (814) 266-6402
Uniontown Office (724) 439-1313
rstairs@earthtechinc.net

Experience:
Hydrology and mining geology
Mineral reserve studies
Wetland delineations
Groundwater well design and installation
Geotechnical investigations
PennDOT Level 1 Drilling Inspector

Lou Pierce, P.G. (PA)

Treasurer, Project Manager
Geology and Mining Permitting/Planning, 3D UAV Mapping

Somerset Office: (814) 266-6402
lpierce@earthtechinc.net

Experience:
Hydrology and mining geology
Mineral reserve studies
Groundwater well design and installation
Geotechnical investigations
FAA Licensed UAV Pilot

Brian Verwelst, P.E. (PA, WV)

Secretary, Project Manager
Uniontown Office (724) 439-1313
bverwelst@earthtechinc.net

Experience:
Mining and civil engineering – Coal & Non-coal (stone & aggregate)
Engineering and mining design and operations
Erosion and sedimentation control BMP design
Construction Oversight
Township engineering
AutoCad, Carlson Civil/Survey