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Rondout-West Branch Tunnel and Shaft Rehabilitation Project

The New York City Department of Environmental Protection (DEP) has issued a Revised Environmental Assessment Form (EAF) for the DEL-185 Tunnel and Shaft Rehabilitation Project in order to disclose to the public and public officials changes to the project that have occurred since the issuance of the original EAF in August 2006.  These changes include, for safety purposes, relocating the proposed new vehicle entrance and parking area at the Shaft No. 6 site in the Town of Wappinger, Dutchess County, New York.

DEP is pleased to announce the availability of the Revised Environmental Assessment for the Rondout-West Branch Tunnel and Shaft Rehabilitation Project. The Original and the Revised Environmental Assessment are both available for viewing below. If you have any questions, please contact Mark Page Jr. at (718) 595-4395.  If you wish to provide DEP with comments on the environmental assessment, please submit written comments to the address below by February 9, 2007.

Mark N. Page, Jr.
Executive Project Manager
New York City Department of Environmental Protection
Bureau of Environmental Planning and Analysis
59-17 Junction Boulevard, 11th Floor
Flushing, New York, 11373

Project Description

DEP is proposing to perform rehabilitation work at six shaft locations along the Rondout-West Branch Tunnel of the Delaware Aqueduct (Tunnel). The shafts are located in the Towns of Wawarsing, Gardiner, Newburgh, Wappinger and Putnam Valley. The Tunnel and Shaft Rehabilitation Project is being proposed in order to prepare the tunnel for maintenance and rehabilitation to extend the useable life of the Delaware Aqueduct and ensure the safe and reliable transmission of water from the watershed for years into the future. The Delaware Aqueduct is an 85-mile, concrete-lined, pressure conduit that is operated and maintained by the DEP. The Aqueduct consists of a series of tunnels connecting the Rondout, West Branch, Kensico, and Hillview Reservoirs. The Delaware Water System provides approximately 50 percent of the water supply to the City on an annual average basis. The Tunnel is a 45-mile segment of the Aqueduct constructed between 1937 and 1944. All water from the Delaware Water System flows through the Tunnel.

Negative Declaration (PDF)

Lead Agency Declaration and Notice of Intent (PDF)

Revised Environmental Assessment (PDF)

Environmental Assessment (PDF)

Reservoir Levels

Current: 95.6%

Normal: 87.0%