Engineering & Surveying

Donald O. Stevenson

Chief Executive Officer

Mr. Stevenson founded PennCore Consulting LLC in 2019 and has extensive experience working in the Appalachian Basin.

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Ryan K. Frenya, P.E., CFM

V.P./Director of Engineering and Environmental

Mr. Frenya is a Civil & Water Resource Engineer with over 18 years of design and construction related experience.

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Brian Schultz, P.E., CFM

Professional Engineer

Mr. Schultz is a licensed Professional Engineer (PE), and Certified Floodplain Manager (CFM) with over 9 years of experience in the Civil & Water Resources field.

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Brian Siperko

Survey Crew Chief

Mr. Siperko is a Survey Crew Chief with 20 years’ experience in the land surveying profession.

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Tyler Shadle

Survey Technician

Mr. Shadle is a Land Surveyor with nearly 2 years field experience and 2 years college experience.

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Lillian Stutzman

Survey Technician

Ms. Stutzman is a Land Surveyor with over 2 years of field and office experience.

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