Performance Indicators Clarifying Notes
Arkansas 1
None
Arkansas 2
None
Beaver Valley 1
None
Beaver Valley 2
None
Braidwood 1
None
Braidwood 2
None
Brown Ferry 2
None
Browns Ferry 3
None
Brunswick 1
None
Brunswick 2
None
Byron 1
None
Byron 2
None
Callaway
None
Calvert Cliffs 1
None
Calvert Cliffs 2
None
Catawba 1
None
Catawba 2
None
Clinton
None
Comanche Peak 1
None
Comanche Peak 2
None
Cooper
None
Crystal River 3
None
Davis-Besse
Alert & Notification System
NRC Comments: Discrepant Performance Indicator, Inspection Procedure 71150 Implemented
The NRC has implemented Inspection Procedure 71150, "Discrepant or Unreported Performance Indicator Data," for the Davis-Besse Alert and Notification System performance indicator. The NRC has inspected the Alert and Notification System performance indicator data and determined that the indicator is "white." Once the root cause(s) of the discrepant PI data have been identified and corrected, and the NRC has verified that the PI data can be collected and reported accurately, oversight of the PI reporting will return to normal inspection per Inspection Procedure 71151.
Diablo Canyon 1
None
Diablo Canyon 2
None
Dresden 2
None
Dresden 3
None
Duane Arnold
None
Farley 1
None
Farley 2
None
Fermi 2
None
FitzPatrick
None
Fort Calhoun
None
Ginna
None
Grand Gulf 1
None
Harris 1
None
Hatch 1
None
Hatch 2
None
Hope Creek 1
None
Indian Point 2
None
Indian Point 3
None
Kewaunee
Alert and Notification System
The ANS Reliability PI for Kewaunee is based on siren data from about half of the emergency planning zone. The ANS Reliability PI for the neighboring Point Beach site is based on siren data from the rest of the emergency planning zone. The ANS Reliability PI from the two sites may be combined to provide an indication of the reliability of all sirens in the shared emergency planning zone.
La Salle 1
None
La Salle 2
None
Limerick 1
None
Limerick 2
None
McGuire 1
None
McGuire 2
None
Millstone 2
None
Millstone 3
None
Monticello
None
Nine Mile Point 1
None
Nine Mile Point 2
None
North Anna 1
None
North Anna 2
None
Oconee 1
None
Oconee 2
None
Oconee 3
None
Oyster Creek
None
Palisades
None
Palo Verde 1
None
Palo Verde 2
None
Palo Verde 3
None
Peach Bottom 2
None
Peach Bottom 3
None
Perry 1
None
Pilgrim 1
None
Point Beach 1
Alert and Notification System
The ANS Reliability PI for Point Beach is based on siren data from about half of the emergency planning zone. The ANS Reliability PI for the neighboring Kewaunee site is based on siren data from the rest of the emergency planning zone. The ANS Reliability PI from the two sites may be combined to provide an indication of the reliability of all sirens in the shared emergency planning zone.
Point Beach 2
Alert and Notification System
The ANS Reliability PI for Point Beach is based on siren data from about half of the emergency planning zone. The ANS Reliability PI for the neighboring Kewaunee site is based on siren data from the rest of the emergency planning zone. The ANS Reliability PI from the two sites may be combined to provide an indication of the reliability of all sirens in the shared emergency planning zone.
Prairie Island 1
None
Prairie Island 2
None
Quad Cities 1
None
Quad Cities 2
None
River Bend 1
None
Robinson 2
None
Saint Lucie 1
None
Saint Lucie 2
None
Salem 1
None
Salem 2
None
San Onofre 2
None
San Onofre 3
None
Seabrook 1
None
Sequoyah 1
None
Sequoyah 2
None
South Texas 1
None
South Texas 2
None
Summer
None
Surry 1
None
Surry 2
None
Susquehanna 1
None
Susquehanna 2
None
Three Mile Island 1
None
Turkey Point 3
None
Turkey Point 4
None
Vermont Yankee
None
Vogtle 1
None
Vogtle 2
None
Waterford 3
None
Watts Bar 1
None
WNP2
None
Wolf Creek 1
None

Page Last Reviewed/Updated Tuesday, March 09, 2021