NRC Addresses Post Fukushima Issues At Specific Reactors

The NRC has been busy sending out letters related to their post-Fukushima safety changes. What was interesting is that not all nuclear plants received a letter and certain letters only went out to a select group of plants.

  • Spent fuel pool instrumentation letters only went out to a select group of GE Mark 1 BWR reactors. and ONE GE Mark III reactor (Perry). Why Perry is singled out is not clear.
  • Hardened venting letters only went out to a small list of GE Mark 1 BWR reactors and ONE GE Mark III reactor (Perry). Why Perry is singled out is not clear.
  • Broader letters about design basis, seismic and flooding risk went out to a similar list of BWR Mark 1  units (and Perry) plus a group of PWR units that were constructed in the 1960’s to early 1970’s.

 

Issuance of Order to Modify Licensees with Regard to Requirements for Mitigation Strategies for Beyond-Design-Basis External Events
To all licensees

Request for information Pursuant to Title 10 of the Code of Federal Regulations 50.54(f) Regarding Recommendations 2.1, 2.3, and 9.3, of the Near-Term Task Force Review of Insights From the Fukushima Dai-Ichi Accident (Seismic, Flooding, Emergencies)

Kewanee – PWR late 1960’s
Braidwood – PWR 1976
Brunswick – BWR 1960’s
Cooper – BWR 1968
Browns Ferry – BWR 1966
Quad Cities – BWR late 1960’s
North Anna – PWR 1971
Duane Arnold – BWR 1970
Perry – BWR Mark III 1977
Prairie Island – PWR late 1960’s
Watts Bar – PWR 1973
Ft. Calhoun – PWR 1966
Nine Mile Pt. – BWR mid 1960’s
Surry – PWR late 1960’s
Limerick – BWR 1974
Calvert Cliffs – PWR 1975
Peach Bottom – BWR late 1960’s
Dresden – BWR late 1960’s
Point Beach – PWR late 1960’s
Indian Pt. – PWR late 1960’s
Vermont Yankee – BWR late 1960’s
Wolf Creek – PWR late 1970’s
Monticello – BWR 1966
Turkey Point – PWR late 1960’s
Oyster Creek – BWR 1965
Three Mile Island – PWR 1968

R MITIGATION STRATEGIES FOR BEYOND-DESIGN-BASIS EXTERNAL EVENTS
Braidwood – PWR 1976 (westinghouse)
Ft. Calhoun – PWR 1966 (CE)
Browns Ferry – BWR 1966
Monticello – BWR 1966
Brunswick – BWR 1960’s
North Anna – PWR 1971 (westinghouse)
Cooper – BWR 1968
Limerick – BWR 1974
Oyster Creek – BWR 1965
Peach Bottom – BWR late 1960’s
Calvert Cliffs – PWR 1975 (CE 2 loop)
Prairie Island – PWR late 1960’s (westinghouse)
Pilgrim – BWR late 1960’s
Indian Pt – PWR late 1960’s (westinghouse)
Nine Mile Pt. – BWR mid 1960’s
Turkey Pt.- PWR late 1960’s (westinghouse)
Surry – PWR late 1960’s (westinghouse)
Duane Arnold – BWR 1970
Kewanee – PWR late 1960’s (westinghouse)
Point Beach – PWR late 1960’s (westinghouse)
Dresden – BWR late 1960’s
Wolf Creek – PWR late 1970’s (westinghouse)
Perry – BWR Mark III 1977
Vermont Yankee – BWR late 1960’s
Three Mile Island – PWR 1968 (B&W)
Quad Cities – BWR late 1960’s
Watts Barr – PWR 1973 (westinghouse)

Reliable Spent Fuel Pool Instrumentation
Browns Ferry – BWR 1966
Cooper BWR 1968
Dresden – BWR late 1960’s
Duane Arnold – BWR 1970
Limerick – BWR 1974
Monticello – BWR 1966
Nine Mile Pt. – BWR mid 1960’s
Oyster Creek – BWR 1965
Peach Bottom – BWR late 1960’s
Perry – BWR Mark III 1977
Pilgrim – BWR late 1960’s
Quad Cities – BWR late 1960’s
Vermont Yankee – BWR late 1960’s

Hardened Vents
Browns Ferry – BWR 1966
Brunswick –BWR 1960’s
Cooper BWR 1968
Dresden – BWR late 1960’s
Duane Arnold – BWR 1970
Limerick – BWR 1974
Monticello – BWR 1966
Nine Mile Pt. – BWR mid 1960’s
Oyster Creek – BWR 1965
Peach Bottom – BWR late 1960’s
Perry – BWR Mark III 1977
Pilgrim – BWR late 1960’s
Quad Cities – BWR late 1960’s
Vermont Yankee – BWR late 1960’s

Fire compliance
Browns Ferry
*Nuclear watchdog groups have been trying to get the NRC to make Browns Ferry (and other reactors) be in compliance with fire regulations for years. NIRS from 2007. Pro_Publica on NRC lax fire safety at reactors. Beyond Nuclear on decades of un-enforced fire regulations.

BWR reactors http://en.wikipedia.org/wiki/List_of_boiling_water_reactors
Not all Mark 1 units received letters, Perry (Mark 3) was flagged while other Mark 2 & 3 plants were not.
PWR reactors http://en.wikipedia.org/wiki/List_of_PWR_reactors
Most of the PWR reactors listed were constructed in the 1960’s or early 1970’s.

 

 

 

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