Principal and Chief Operating Officer

• Oct 2019 - Present

The Lexis Group, LLC (Lexis) is a Pennsylvania-based Woman-Owned Business Enterprise (WBE) specializing in Subsurface Utility Engineering (SUE), Site Planning/Design, and Survey Services for public and private sector clients. Established in 2009 and led by Alexis Isenberg, PE, the corporate headquarters is located in the Harrisburg, Pennsylvania area. Lexis’ focus on quality, client communication, responsiveness, professional development, and passion for technology sets us apart from competitors. Technological advances will continue to improve data acquisition speed, while reducing errors in the field and increasing production. Lexis is committed to being on the forefront of new technology. Mr. Teschke manages Lexis’ SUE practice and utility services across the Commonwealth. His background in geophysics is key to the successful application of SUE to transportation, land development, construction, and environmental projects. He is currently involved with bridge replacement, full-depth reconstruction, signalization, drainage, underground storage tank, and other design work. Mr. Teschke was involved in the Federal Highway Administration’s implementation of the Strategic Highway Research Program R01B for advancing technology used for the detection of underground utilities. Throughout his career, Mr. Teschke has performed work from coast to coast bringing a wide array of experience home to Pennsylvania.

Branch Manager, Technical Principal-Geophysics/UES

• May 2018 - Oct 2019

Cardno, Inc. is a recognized leader in Subsurface Utility Engineering (S.U.E.) and Utility Coordination (U.C.). Utility offices across the country provide services to Departments of Transportation, Port Authorities, Oil and Gas Industry, Municipalities, Architects, Universities, Hospitals, and others. Our team continues to lead the industry with the technical expertise and focus to exceed client expectations.I was the branch manager for Cardno's S.U.E. and U.C. office located just outside of Pittsburgh, PA. Some of my responsibilities included business development, branch financials, scheduling, and project oversight. I am a registered Professional Geologist in Pennsylvania and a licensed Professional Geophysicist in California.I specialize in near-surface geophysical applications, specifically focusing on subsurface utility engineering and have conducted utility investigations for both the public and private sectors including transportation, hospitals, universities, site developments, and fueling stations. Most recent geophysical projects include multi-channel ground penetrating radar (MCGPR), high-frequency ground penetrating radar for concrete inspections (including bridge decks), as well as time- and frequency-domain electromagnetics. In my role as Principal for Geophysics, I support other Cardno offices across the country for advanced geophysical applications.

Branch Manager

• May 2014 - Oct 2019

Geophysicist/Project Manager

• May 2007 - May 2014

I am a state registered Professional Geologist in Pennsylvania working for a near-surface geophysics company. I specialized in the collection and interpretation of geophysical data including bedrock studies, void detection, fracture delineation, contaminant plume identification, seismic studies, and underground storage tank and utility locating, I led field crews throughout the United States and Canada for 7 years to collect geophysical data related to the engineering and environmental fields. I was involved in bidding potential projects, directing field crews, collecting and interpreting geophysical data, and writing geophysical reports.

Geophysical Field Technician Intern

• Jan 2007 - May 2007

I assisted senior staff in the collection of seismic and electromagnetic surveys. I was introduced to seismic data interpretation from data collected in Lancaster, PA. This experience sparked my interest in the field of geophysics and ultimately led me to a position at THG Geophysics, Ltd. upon graduation. I assisted senior staff in the collection of seismic and electromagnetic surveys. I was introduced to seismic data interpretation from data collected in Lancaster, PA. This experience sparked my interest in the field of geophysics and ultimately led me to a position at THG Geophysics, Ltd. upon graduation.

Engineering Technician

• May 2006 - Aug 2006

I conducted QA/QC for construction sites in Pittsburgh, PA and Erie, PA including on-site concrete, soil, and asphalt tests. I analyzed field samples in the laboratory including concrete compressive strength testing as well as soil proctors and gradations. I reported daily completed tasks to management and utilized site maps to locate test locations. I conducted QA/QC for construction sites in Pittsburgh, PA and Erie, PA including on-site concrete, soil, and asphalt tests. I analyzed field samples in the laboratory including concrete compressive strength testing as well as soil proctors and gradations. I reported daily completed tasks to management and utilized site maps to locate test locations.