Everyone thinks it will end with mass radiation causalities...I say it will more end in a event like this?
Power Reactor | Event Number: 51253 |
Facility: CALLAWAY
Region: 4 State: MO
Unit: [1] [ ] [ ]
RX Type: [1] W-4-LP
NRC Notified By: WALTER GRUER
HQ OPS Officer: JEFF HERRERA | Notification Date: 07/23/2015
Notification Time: 04:21 [ET]
Event Date: 07/23/2015
Event Time: 01:15 [CDT]
Last Update Date: 07/23/2015 |
Emergency Class: NON EMERGENCY
10 CFR Section:
50.72(b)(2)(i) - PLANT S/D REQD BY TS | Person (Organization):
HEATHER GEPFORD (R4DO)
SCOTT MORRIS (NRR)
JEFFERY GRANT (IRD) |
Unit | SCRAM Code | RX CRIT | Initial PWR | Initial RX Mode | Current PWR | Current RX Mode |
1 | N | Y | 100 | Power Operation | 0 | Cold Shutdown |
Event Text
INITIATION OF PLANT SHUTDOWN DUE TO RCS LEAKAGE
"On July 23, 2015 at 0115 [CDT], Callaway Plant initiated a shutdown required by Technical Specifications (TS). At 2139 [CDT] on July 22, 2015, TS 3.4.13 Condition A was entered due to unidentified RCS leakage being in excess of the 1 gpm TS limit. The leak was indicated by an increase in containment radiation readings, increasing sump levels, and decreasing levels in the Volume Control tank (VCT).
"A containment entry identified a steam plume; due to personnel safety the exact location of the leak inside the containment building could not be determined.
"At this time radiation levels inside [the] containment are stable and slightly above normal. There have been no releases from the plant above normal levels.
"The [NRC] Senior Resident Inspector was notified." |
JIM SALTER, Associated Press
Originally published July 23, 2015 at 1:19 p.m., updated July 23, 2015 at 4:36 p.m.
The Ameren Corp. nuclear power plant in central Missouri was shut down for the second time in eight months Thursday after a "non-emergency" leak was found in the reaction control system.
The shutdown occurred at 1:15 a.m. at the plant near Fulton. Jeff Trammel, a spokesman for St. Louis-based Ameren, called it a "minor steam leak." He said no one was hurt and there was no risk to the public.
Ameren officials are investigating the cause. Trammel said it was unclear when the plant would restart.
The U.S. Nuclear Regulatory Commission was advised of the leak and inspectors are at the plant, spokeswoman Lara Uselding said.
"The plant is in a safe shutdown condition and there is no risk to public health and safety or the environment," Uselding said.
The Callaway plant also shut down in December, due to an electrical equipment failure. That shutdown was the first in more than two years. No one was hurt and the public was not threatened in that leak, Ameren said.
An NRC report on the latest incident classified it as a "non-emergency." The report said the shutdown was initiated after a reaction control system leak was detected at the plant that sits about 100 miles west of St. Louis.
"A containment entry identified a steam plume; due to personnel safety the exact location of the leak inside the containment building could not be determined," the NRC report said.
The NRC report said radiation levels were "slightly above normal," but stable inside the containment building, and there were no releases from the plant "above normal levels."
Ed Smith of the Missouri Coalition for the Environment said the shutdown raises concerns for the plant, which turned 30 last year.
"As the Callaway nuclear reactor ages, I think we're going to see more incidents like this," Smith said.
Ameren, based in St. Louis, provides electrical power to customers in Missouri and Illinois. Trammel said customers will see no impact from the shutdown. The Callaway plant generates about 20 percent of electricity for Ameren's 1.2 million Missouri customers.
Earlier coverage:
Ameren Missouri's Callaway Nuclear plant was shut down today by a "minor steam leak."
The company said the incident occurred in the plant's containment area, and "poses no threats to the health and safety of the public or Callaway employees."
Company officials are trying to determine the cause of the problem, which they said "has been contained."
No "return to service date" has been set, but service to customers "has not been affected."
Ameren provides electricity to more than 1 million customers in Central and Eastern Missouri
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