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Peter Mangarella

Environmental Impact Studies

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For more than 40 years, strict adherence to guidelines under the National Environmental Policy Act requires all federal agencies to consider the environmental impacts of a broad scope of proposed actions and decisions as well as to consider any reasonable alternatives to those actions. Geosyntec's engineers and scientists offer clients decades of experience in the development of comprehensive environmental impact statements (EIS) for actions requiring federal authorization or that are otherwise subject to federal control. We also prepare EIS as required by regulations at the state and regional level around the country. Our practitioners across multiple disciplines lead the development of EIS for clients within the U.S. Department of Defense, U.S. Customs and Border Protection, the Federal Bureau of Prisons, the U.S. Air Force, and the U.S. Army Corps of Engineers, to name just a few. Impact statements are submitted for public comment periods throughout the development process. In addition, we guide clients through the review and comment by officials with the U.S. Environmental Protection Agency before a final EIS and record of decision can be infused into a program or action. As we develop an EIS, we ensure our detailed analysis provides a discussion of any significant environmental impacts affecting a project as well as the purpose of and need for proposed actions. We then review reasonable alternatives, including a No Action alternative, which would allow agency officials to avoid or minimize adverse impacts or enhance the quality of the human environment. These full disclosure documents detail the process through which a federal project was developed and demonstrates compliance with other applicable environmental laws and executive orders.

Constructed Wetland Treatment Systems

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Constructed wetlands have shown great promise treating a variety of constituents in wastewater and groundwater impacted by ammonia, BOD, COD, iron, phosphorous, volatiles, and other contaminants. Geosyntec has significant experience in conducting a wide variety of wetlands-related projects. For example, Geosyntec has partnered in the design and implementation of innovative vertical-flow constructed wetlands systems and adapted this technology for the effective treatment of wastewater. The features of this technology include a small footprint, a modular design, and the system's operational stability throughout the year. Geosyntec has also designed constructed wetlands for treatment of stormwater runoff and in other applications of implementing best management practices (BMPs) for many years. We have further used innovative approaches involving constructed wetlands for treatment of metals and petroleum-related compounds, and we are involved in several treatability and pilot-scale studies to evaluate the use of constructed wetlands to treat a variety of contaminants in groundwater. Goals of these projects have included treatment, as well as to create and restore habitat for aquatic and terrestrial vegetation and wildlife, stabilize shorelines and prevent erosion and sedimentation, and improve water quality by attenuation of nutrient, pollutant, and sediment loads. Project goals have also included providing educational and recreational opportunities.

Overview of Water and Natural Resources

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Geosyntec's water and natural resources practice is a collaborative group of nationally recognized scientists and engineers dedicated to balancing built and natural environments. Their practice specialties represent many disciplines, including geomorphology, ecology, biology, statistics, construction management, computer science, and engineering. Our practitioners are at the forefront of policy analyses, regulatory compliance, and technology applications that promote sustainable water resources management and ecosystem restoration.

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