Paul V. Rush, P.E., Deputy Commissioner, Bureau of Water Supply of the New York City Department of Environmental Protection will present the 2009 Freeman Lecture. Abstract: The water supply system operated by the New York City Department of Environmental Protection (NYCDEP) delivers approximately 1.2 billion gallons daily to nearly half the population of New York State. Roughly half of the supply is provided by the Delaware Water Supply System located west of the Hudson River. All of the water from the Delaware System must flow through the world's longest continuous tunnel, the Delaware Aqueduct, in order to reach the City's distribution system. Leaks have been identified at two locations along a 45-mile long portion of the Delaware Aqueduct known as the Rondout-West Branch Tunnel. The City's long term plan for sustainability, PlanNYC, highlights the need to repair the Delaware Aqueduct and NYCDEP is in the process of developing plans for the tunnel repair.

Reception at 6:00 pm, Lecture at 7:00 pm.
The John R. Freeman Lecture is co-sponsored by the Environmental and Water Resources Group of the Boston Society of Civil Engineers Section, the ASCE, and the MIT Department of Civil and Environmental Engineering.