- June 27th, 2011
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Worth reading in today’s news:
Population density around nuke plants soars
(AP) BUCHANAN, N.Y. — As America’s nuclear power plants have aged, the once-rural areas around them have become far more crowded and much more difficult to evacuate. Yet government and industry have paid little heed, even as plants are running at higher power and posing more danger in the event of an accident, an Associated Press investigation has found.
Populations around the facilities have swelled as much as 4½ times since 1980, a computer-assisted population analysis shows.
But some estimates of evacuation times have not been updated in decades, even as the population has increased more than ever imagined. Emergency plans would direct residents to flee on antiquated, two-lane roads that clog hopelessly at rush hour.
U.S. nuke regulators weaken safety rules
(AP)LACEY TOWNSHIP, N.J. — Federal regulators have been working closely with the nuclear power industry to keep the nation’s aging reactors operating within safety standards by repeatedly weakening those standards, or simply failing to enforce them, an investigation by The Associated Press has found.
Time after time, officials at the U.S. Nuclear Regulatory Commission have decided that original regulations were too strict, arguing that safety margins could be eased without peril, according to records and interviews.
The result? Rising fears that these accommodations by the NRC are significantly undermining safety — and inching the reactors closer to an accident that could harm the public and jeopardize the future of nuclear power in the United States.
Examples abound. When valves leaked, more leakage was allowed — up to 20 times the original limit. When rampant cracking caused radioactive leaks from steam generator tubing, an easier test of the tubes was devised, so plants could meet standards.
Radioactive leaks found at 75% of US nuke sites
(AP) BRACEVILLE, Ill. – Radioactive tritium has leaked from three-quarters of U.S. commercial nuclear power sites, often into groundwater from corroded, buried piping, an Associated Press investigation shows.
The number and severity of the leaks has been escalating, even as federal regulators extend the licenses of more and more reactors across the nation.
Tritium, which is a radioactive form of hydrogen, has leaked from at least 48 of 65 sites, according to U.S. Nuclear Regulatory Commission records reviewed as part of the AP’s yearlong examination of safety issues at aging nuclear power plants. Leaks from at least 37 of those facilities contained concentrations exceeding the federal drinking water standard — sometimes at hundreds of times the limit.
While most leaks have been found within plant boundaries, some have migrated offsite. But none is known to have reached public water supplies.
High radiation prompts evac at Ohio nuke plant
(AP) CLEVELAND – High radiation levels recorded at a nuclear reactor in northeast Ohio have prompted a special inspection by the U.S. Nuclear Regulatory Commission.
The NRC says workers at the Perry Nuclear Power Plant immediately evacuated it April 22 when radiation levels rose while it was shutting down for a refueling outage. The commission says the plant is safe and officials don’t believe workers were exposed to radiation levels “in excess of NRC limits.”