In 2017, Preski became President of Pennsylvania Water Specialties Company (PAWSC) and National Water Specialties Company (NAWSC). These companies are leaders in the field of Cross-Connection Control (CCC) and Backflow Prevention (BFP) administration services to water authorities, utilities and private entities. Preski carries Series 5000 ASSE certifications as a CCC and BFP Administrator, Surveyor, Installer, Repairer and Tester. He also holds ASSE Series 12080 certification for Legionella and Water Borne Pathogens. He currently serves on the ASSE Committees on Cross-Connection Control and Legionella. Preski has a long history of state government service as Chief of Staff for the Speaker of the PA House of Representatives, Chief of Staff to the Majority Leader and Chief Counsel to the Committee on the Judiciary. Preski has been involved in every piece of water, wastewater and municipal authority legislation enacted in PA from 1995 through 2007. He also served as an assistant district attorney in Philadelphia. He is a graduate of Widener University School of Law (J.D., 1992) and St. Joseph's University (B.A., 1987). Preski is not engaged in the practice of law nor is he entitled to practice law.