John C. Hall, the founder and president of Hall & Associates, focuses on innovative solutions for modification of and compliance with environmental mandates under the water, air, and hazardous waste programs. Mr. Hall is an expert on water quality criteria and standards, NPDES permitting, compliance issues, and coalition building. He represents industries, municipalities, and associations throughout the country and has substantial experience in environmental permitting, site-specific standards development, dispute resolution, regulatory impacts analysis, watershed planning, nutrient trading, legislative drafting, mathematical modeling of water quality standards, and treatment plant performance.

Mr. Hall received his B.A. degree in mathematics from St. John's University in 1978 and his M.S. degree in environmental engineering from Manhattan College in 1980. He obtained his law degree from George Washington University in 1984.
William T. Hall is an environmental engineer with diverse engineering and permitting experience in water quality, wastewater treatment, NPDES permitting, and mathematical modeling since completing his Master’s Degree. He has extensive experience in evaluating water quality-based effluent limitations, water quality criteria compliance, nutrient criteria development, and TMDLs for municipal and industrial clients. He is primarily responsible for the preparation of technical reports to support the firm’s legal positions on these matters. Most of his recent work focuses on evaluating nutrient criteria development and implementation in TMDLs. He also is an active participant in state committees attempting to develop scientifically defensible numeric criteria for nutrients.

Mr. Hall received his B.S. degree in biology from the City College of New York in 1976 and his M.S. degree in Environmental Engineering from Manhattan College in 1982.
Gary B. Cohen has been involved in the practice of environmental law for nearly twenty years. He represents clients throughout the country on Clean Water Act-related issues including NPDES permit negotiation, NPDES permit appeals, defense of enforcement actions, pretreatment program review and development, multi-jurisdictional agreements, industrial user contracts, development of enforcement response plans, and development of permits for industrial users. In addition, his expertise includes NPDES and pretreatment litigation defense, regulatory counseling, Section 404 wetlands permitting, underground injection, solid waste and sludge regulation, facility siting and hazardous waste counseling and litigation.

Mr. Cohen received his law degree from the State University of New York (Buffalo). Mr. Cohen is a member of the New York, California, and Washington, D.C. bar associations.