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Located in Haddam Neck, Connecticut, the Connecticut Yankee (CY) nuclear power plant began commercial operation in 1968 and produced more than 110 billion kilowatt-hours of electricity during its 28-year operating history.

In 1996, the CY Board of Directors voted to permanently close and decommission the power plant. After two years of planning and preparation, actual decommissioning began in 1998 and was completed successfully in 2007 with all plant structures removed and the site restored to stringent state and federal clean-up standards.

In October 2007, the Connecticut Department of Energy and Environmental Protection approved a stewardship permit for the CY site, indicating that remediation of non-radioactive contaminants is complete, and that the only remaining activity is groundwater monitoring, which is scheduled to conclude in the fall of 2014.

Remaining at the CY site is the Independent Spent Fuel Storage Installation (ISFSI) consisting of 43 dry storage casks licensed by the U.S. Nuclear Regulatory Commission for storage and transport. 40 casks contain spent nuclear fuel used during the years of plant operation and 3 contain sections of the reactor vessel internals classified as high-level radioactive waste (Greater than Class C waste). The spent nuclear fuel and GTCC waste will remain at the CY site until the federal government fulfills its commitment to remove this material as required by the Standard Contract between Connecticut Yankee and the U.S. Department of Energy and the Nuclear Waste Policy Act. The spent nuclear fuel and GTCC waste is stored in compliance with NRC regulations. For more information please go to Spent Fuel Storage and Removal.

The ISFSI is located on approximately 5 acres of the 525 acre CY site. Most of the site is fields and woods, home to many species of animals as shown in the photos below including a bobcat at night in a tree and a Great Egret photographed by Pierre Faber of Middle Haddam.

Hawk

Deer

Fawn

Mallards

Mallards

Bobcat

Eagle

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