BSM_logo_pms By Bill Marczewski, PE|2018-05-22T22:04:48-07:00May 22nd, 2018| Share This Story, Choose Your Platform! FacebookTwitterRedditLinkedInTumblrPinterestVkEmail About the Author: Bill Marczewski, PE President, CEO of civil, structural and geotechnical engineering firm providing services for building, bridge and marine project market sectors. Specialists in seismic and deep foundations with dynamic testing capabilities with PDA.