Nuclear Reactor in NYC Suburbs Back in Service A nuclear reactor in New York City's suburbs is back in service after an eight-day shutdown to repair a pump that was leaking slightly radioactive water. Plant owner Entergy Nuclear says the reactor in Buchanan went back online Wednesday. Indian Point 2 was shut down Jan. 10 to replace a seal inside a pump. Entergy officials say the pump normally leaks about 2 gallons a minute. Operators shut the reactor down for maintenance when they noticed an increased flow. The other reactor at the plant, Indian Point 3, continued operating at full power. Indian Point generates about 2,000 megawatts of electricity and is a major energy producer for New York City and Westchester County.