About

With a total of 33 years of experience (20 as a manager) working within the Chesapeake Bay watershed, Mr. Der is currently executive principal of Andrew T. Der and Associates, LLC practicing in the water resources consulting and contracting industry regionally and nationally since 2013. Before that and since 2000, he was Director of Environmental Services for two civil engineering firms in the Washington DC/Baltimore, MD metro region. Previously, he completed 18 years of service at the Maryland Department of the Environment leaving as a manager. Specialties include regulation and compliance; assessment; watershed studies; advocacy; permitting; feasibility studies; nonpoint source pollution; wetland and stream mitigation; water quality; and Clean Water Act and NEPA, as well as various federal and state pollution and waste programs. He is an Academy of Board Certified Environmental Professionals (ABCEP) Certified Environmental Professional (CEP) by eminence, and also teaches seminars, publishes industry-related and natural resources articles, a member of industry and advisory committees, recipient of numerous awards of recognition, and provides expert testimony and media interviews.