Coalition alleges safety rollbacks at Entergy Palisades, cites risk of vessel fracture, calls for permanent shutdown
A coalition of environmental groups and concerned local residents has intervened against Entergy Nuclear's License Amendment Application (LAR) to the U.S. Nuclear Regulatory Commission (NRC) at its Palisades atomic reactor on the Lake Michigan shore in southwest Michigan (see photo, left). The LAR seeks to apply an alternate reactor pressure vessel (RPV) fracture toughness rule (10CFR50.61a, instead of the current 10CFR50.61). If successful, the intervention could force the permanent shutdown of the 44-year-old nuclear power plant.
The coalition cites the risk of catastrophic release of hazardous radioactivity to the environment due to Pressurized Thermal Shock (PTS) fracturing the embrittled RPV, causing a Loss-of-Coolant-Accident (LOCA), core meltdown, and containment failure.
See the coalition's intervention filing here, including legal and technical arguments, as well as numerous examples of PTS regulatory rollbacks over the decades. See expert witness Arnie Gundersen's declaration and CV here. See eyewitness affidavits re: NRC's refusal to require metal samples to be analyzed here. See an extensive (yet still far from complete) compilation of Palisades' PTS-related documents here. See the coalition's press release here. See also a statement by Gail Snyder, President of the Board of Nuclear Energy Information Service of IL, and a local landowner near Palisades who has intervened against the LAR.
The coalition includes Beyond Nuclear, Don't Waste Michigan, Michigan Safe Energy Future, and Nuclear Energy Information Service (Chicago, IL). Arnie Gunderden, Chief Engineer of Fairewinds Associates, Inc., serves as the coalition's expert witness. Terry Lodge, Toledo-based attorney, serves as the coalition's legal counsel.
An environmental coalition, including Don't Waste MI and represented by Lodge, opposed Palisades' 20-year license extension from 2005-2007, citing PTS risk as its chief safety contention. However, NRC rubber-stamped its approval, allowing Palisades to operate from 2011 to 2031.