About 2,000 liters of radioactive water leaked at the Czech Republic's Temelin nuclear power plant, but did not contaminate the environment, an official said today. The water leaked early Tuesday at the plant's first unit, which is currently shut down for fuel replacement, The Associated Press quoted plant spokesman Milan Nebesar as saying. «The water went to a special tank through a special sewage system and none of it leaked to the environment,» Nebesar said. He said that an open valve caused the leak. The plant's second unit was running at full capacity. Nebesar said the plant's management has informed Czech and Austrian authorities about the leak.