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David A. Cline, Jr.
Emory H. Hull
Robert D. Bartholomew, P.E.
Gary H. Roberts, P.E.
Frank P. Roma, P.E.
John W. Siegmund
Ewa Labuda, Ph.D.
Kathleen O. Orrson
Dania J. Thompson
Strati Yorgiadis, P.E.
William E Chesney, P.E.

The Partnership arrangement established in 1958 continues to serve as the basis for the management and organizational structure of Sheppard T. Powell Associates, LLC. The Associates are assisted by a staff of Senior Engineers, Metallurgical Director and Staff Consultants (retired Partners) plus graphic design and clerical personnel. Analytical services are provided by our Metallurgical Director, Senior Chemists and Laboratory Technicians. Sheppard T. Powell Associates, LLC is an independent consulting and laboratory services organization.

The unique qualifications, capabilities and experience of our technical staff are outlined in our company brochure (see Contact Us). The Associates and Senior Engineers of Sheppard T. Powell Associates, LLC come from a number of educational backgrounds - including chemical engineering, sanitary engineering, civil engineering, environmental engineering, material science, chemistry and biology. Technical personnel have previous work experience with other companies which include engineering firms, private industry, and government. Staff members are active also in a number of professional societies which sponsor committee work involving water treatment and corrosion. As a group, the staff offers a broad background. Their disciplines are carefully considered when selecting individuals for specific work assignments. Most important is our hands-on experience developed during provision of service to our clients.

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		David A. Cline, Jr. Managing Associate dac@stpa.com Loyola College - B.S. Chemistry Taft Center (USEPA/OHIO) - Special Courses in Wastewater Treatment Joined STPA in 1971
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		Emory H. Hull Associate ehh@stpa.com The Johns Hopkins University - B.E.S. Environmental Engineering Joined STPA in 1980
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		Robert D. Bartholomew, P.E. Associate rdb@stpa.com Bucknell University - B.S. Chemical Engineering Joined STPA in 1986
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		Gary H. Roberts, P.E. Senior Engineer ghr@stpa.com Marietta College - B.S. Chemistry Joined STPA in 2001
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		Frank P. Roma, P.E. Staff Consultant fpr@stpa.com Clarkson University - B.S. Chemical Engineering Joined STPA in 2008
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		John W. Siegmund, P.E. Staff Consultant jws@stpa.com The Johns Hopkins University - B.E. Chemical Engineering Joined STPA in 1947
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		Ewa Labuda, Ph.D. Metallurgical Director el@stpa.com The Academy of Mining and Metallurgy, Cracow, Poland - M.S in Materials Catholic University of America - M.S. in Chemistry Catholic University of America - Ph.D in Chemistry Joined STPA in 1998
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		Kathleen O. Orrson Senior Chemist koo@stpa.com University of Maryland, College Park - B.S. in Chemistry. MDE - Certified for the Collection of Drinking Water Samples. Joined STPA in 1998
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		Dania J. Thompson Senior Chemist djt@stpa.com Loyola College - B.S. in Biology University of Delaware, School of Marine Science - Graduate Studies Joined STPA in 1978
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		Strati Yorgiadis, P.E. Staff Consultant Robert College (Turkey) - B.S. Civil Engineering The John Hopkins University- M.S.Sanitary Engineering University Of Iowa - Graduate Studies Department of Hydraulics
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		William E Chesney, P.E. Staff Consultant University Of Maryland- B.S. Biological Science The John Hopkins University- Graduate studies Sanitary Engineering

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