retrospective power curve nrc license termination ...c0403 alpha phoswich data 256.5, 1.00 0.00 0.20...

37
Retrospective Power Curve Igloo C0203 NRC License Termination Seneca Army Depot Activity ALPHA PHOSWICH BETA PHOSWICH Based on the number of measurements and the observed standard deviation, a survey unit with a median measurement equal to the background median plus the LBGR (16.3) will have a 0.30 probability that the survey unit will correctly fail (i.e., the null hypothesis that the difference between the survey unit median and the background median is less than the LBGR [i.e., the survey unit is indistinguishable from background] is rejected). Based on the number of measurements and the observed standard deviation, a survey unit with a median measurement equal to the background median plus the LBGR (256.5) will have a 1.0 probability that the survey unit will correctly fail (i.e., the null hypothesis that the difference between the survey unit median and the background median is less than the LBGR [i.e., the survey unit is indistinguishable from background] is rejected). 16.3, 0.30 0.00 0.20 0.40 0.60 0.80 1.00 1.20 0 5 10 15 20 25 30 Alpha Measurement (cpm) Power (Probability of Survey Unit Failing) C0203 Alpha Phoswich Data 256.5, 1.00 0.00 0.20 0.40 0.60 0.80 1.00 1.20 0 200 400 600 800 1000 1200 1400 Beta Measurement (cpm) Power (Probability of Survey Unit Failing) C0203 Beta Phoswich Data

Upload: others

Post on 09-Oct-2020

0 views

Category:

Documents


0 download

TRANSCRIPT

Page 1: Retrospective Power Curve NRC License Termination ...C0403 Alpha Phoswich Data 256.5, 1.00 0.00 0.20 0.40 0.60 0.80 1.00 1.20 0 200 400 600 800 1000 1200 1400 Beta Measurement (cpm)

Retrospective Power CurveIgloo C0203

NRC License TerminationSeneca Army Depot Activity

ALPHA PHOSWICH

BETA PHOSWICH

Based on the number of measurements and the observed standard deviation, a survey unit with a median measurement equal to the background median plus the LBGR (16.3) will have a 0.30 probability that the survey unit will correctly fail (i.e., the null hypothesis that the difference between the survey unit median and the background median is less than the LBGR [i.e., the survey unit is indistinguishable from background] is rejected).

Based on the number of measurements and the observed standard deviation, a survey unit with a median measurement equal to the background median plus the LBGR (256.5) will have a 1.0 probability that the survey unit will correctly fail (i.e., the null hypothesis that the difference between the survey unit median and the background median is less than the LBGR [i.e., the survey unit is indistinguishable from background] is rejected).

16.3, 0.30

0.00

0.20

0.40

0.60

0.80

1.00

1.20

0 5 10 15 20 25 30

Alpha Measurement (cpm)

Pow

er (P

roba

bilit

y of

Sur

vey

Uni

t Fai

ling)

C0203 Alpha PhoswichData

256.5, 1.00

0.00

0.20

0.40

0.60

0.80

1.00

1.20

0 200 400 600 800 1000 1200 1400

Beta Measurement (cpm)

Pow

er (P

roba

bilit

y of

Sur

vey

Uni

t Fai

ling)

C0203 Beta PhoswichData

Page 2: Retrospective Power Curve NRC License Termination ...C0403 Alpha Phoswich Data 256.5, 1.00 0.00 0.20 0.40 0.60 0.80 1.00 1.20 0 200 400 600 800 1000 1200 1400 Beta Measurement (cpm)

Retrospective Power CurveIgloo C0303

NRC License TerminationSeneca Army Depot Activity

ALPHA PHOSWICH

BETA PHOSWICH

Based on the number of measurements and the observed standard deviation, a survey unit with a median measurement equal to the background median plus the LBGR (16.3) will have a 0.16 probability that the survey unit will correctly fail (i.e., the null hypothesis that the difference between the survey unit median and the background median is less than the LBGR [i.e., the survey unit is indistinguishable from background] is rejected).

Based on the number of measurements and the observed standard deviation, a survey unit with a median measurement equal to the background median plus the LBGR (256.5) will have a 1.0 probability that the survey unit will correctly fail (i.e., the null hypothesis that the difference between the survey unit median and the background median is less than the LBGR [i.e., the survey unit is indistinguishable from background] is rejected).

16.3, 0.16

0.00

0.10

0.20

0.30

0.40

0.50

0.60

0.70

0.80

0.90

1.00

0 5 10 15 20 25 30

Alpha Measurement (cpm)

Pow

er (P

roba

bilit

y of

Sur

vey

Uni

t Fai

ling)

C0303 Alpha PhoswichData

256.5, 1.00

0.00

0.20

0.40

0.60

0.80

1.00

1.20

0 200 400 600 800 1000 1200 1400

Beta Measurement (cpm)

Pow

er (P

roba

bilit

y of

Sur

vey

Uni

t Fai

ling)

C0303 Beta PhoswichData

Page 3: Retrospective Power Curve NRC License Termination ...C0403 Alpha Phoswich Data 256.5, 1.00 0.00 0.20 0.40 0.60 0.80 1.00 1.20 0 200 400 600 800 1000 1200 1400 Beta Measurement (cpm)

Retrospective Power CurveIgloo C0307

NRC License TerminationSeneca Army Depot Activity

ALPHA PHOSWICH

BETA PHOSWICH

Based on the number of measurements and the observed standard deviation, a survey unit with a median measurement equal to the background median plus the LBGR (16.3) will have a 0.16 probability that the survey unit will correctly fail (i.e., the null hypothesis that the difference between the survey unit median and the background median is less than the LBGR [i.e., the survey unit is indistinguishable from background] is rejected).

Based on the number of measurements and the observed standard deviation, a survey unit with a median measurement equal to the background median plus the LBGR (256.5) will have a 1.0 probability that the survey unit will correctly fail (i.e., the null hypothesis that the difference between the survey unit median and the background median is less than the LBGR [i.e., the survey unit is indistinguishable from background] is rejected).

16.3, 0.16

0.00

0.10

0.20

0.30

0.40

0.50

0.60

0.70

0.80

0.90

1.00

0 5 10 15 20 25 30

Alpha Measurement (cpm)

Pow

er (P

roba

bilit

y of

Sur

vey

Uni

t Fai

ling)

C0307 Alpha PhoswichData

256.5, 1.00

0.00

0.20

0.40

0.60

0.80

1.00

1.20

0 200 400 600 800 1000 1200 1400

Beta Measurement (cpm)

Pow

er (P

roba

bilit

y of

Sur

vey

Uni

t Fai

ling)

C0307 Beta PhoswichData

Page 4: Retrospective Power Curve NRC License Termination ...C0403 Alpha Phoswich Data 256.5, 1.00 0.00 0.20 0.40 0.60 0.80 1.00 1.20 0 200 400 600 800 1000 1200 1400 Beta Measurement (cpm)

Retrospective Power CurveIgloo C0308

NRC License TerminationSeneca Army Depot Activity

ALPHA PHOSWICH

BETA PHOSWICH

Based on the number of measurements and the observed standard deviation, a survey unit with a median measurement equal to the background median plus the LBGR (16.3) will have a 0.16 probability that the survey unit will correctly fail (i.e., the null hypothesis that the difference between the survey unit median and the background median is less than the LBGR [i.e., the survey unit is indistinguishable from background] is rejected).

Based on the number of measurements and the observed standard deviation, a survey unit with a median measurement equal to the background median plus the LBGR (256.5) will have a 1.0 probability that the survey unit will correctly fail (i.e., the null hypothesis that the difference between the survey unit median and the background median is less than the LBGR [i.e., the survey unit is indistinguishable from background] is rejected).

16.3, 0.16

0.00

0.10

0.20

0.30

0.40

0.50

0.60

0.70

0.80

0.90

1.00

0 5 10 15 20 25 30

Alpha Measurement (cpm)

Pow

er (P

roba

bilit

y of

Sur

vey

Uni

t Fai

ling)

C0308 Alpha PhoswichData

256.5, 1.00

0.00

0.20

0.40

0.60

0.80

1.00

1.20

0 200 400 600 800 1000 1200 1400

Beta Measurement (cpm)

Pow

er (P

roba

bilit

y of

Sur

vey

Uni

t Fai

ling)

C0308 Beta PhoswichData

Page 5: Retrospective Power Curve NRC License Termination ...C0403 Alpha Phoswich Data 256.5, 1.00 0.00 0.20 0.40 0.60 0.80 1.00 1.20 0 200 400 600 800 1000 1200 1400 Beta Measurement (cpm)

Retrospective Power CurveIgloo C0401

NRC License TerminationSeneca Army Depot Activity

ALPHA PHOSWICH

BETA PHOSWICH

Based on the number of measurements and the observed standard deviation, a survey unit with a median measurement equal to the background median plus the LBGR (16.3) will have a 0.16 probability that the survey unit will correctly fail (i.e., the null hypothesis that the difference between the survey unit median and the background median is less than the LBGR [i.e., the survey unit is indistinguishable from background] is rejected).

Based on the number of measurements and the observed standard deviation, a survey unit with a median measurement equal to the background median plus the LBGR (256.5) will have a 1.0 probability that the survey unit will correctly fail (i.e., the null hypothesis that the difference between the survey unit median and the background median is less than the LBGR [i.e., the survey unit is indistinguishable from background] is rejected).

16.3, 0.16

0.00

0.20

0.40

0.60

0.80

1.00

1.20

0 5 10 15 20 25 30

Alpha Measurement (cpm)

Pow

er (P

roba

bilit

y of

Sur

vey

Uni

t Fai

ling)

C0401 Alpha PhoswichData

256.5, 1.00

0.00

0.20

0.40

0.60

0.80

1.00

1.20

0 200 400 600 800 1000 1200 1400

Beta Measurement (cpm)

Pow

er (P

roba

bilit

y of

Sur

vey

Uni

t Fai

ling)

C0401 Beta PhoswichData

Page 6: Retrospective Power Curve NRC License Termination ...C0403 Alpha Phoswich Data 256.5, 1.00 0.00 0.20 0.40 0.60 0.80 1.00 1.20 0 200 400 600 800 1000 1200 1400 Beta Measurement (cpm)

Retrospective Power CurveIgloo C0403

NRC License TerminationSeneca Army Depot Activity

ALPHA PHOSWICH

BETA PHOSWICH

Based on the number of measurements and the observed standard deviation, a survey unit with a median measurement equal to the background median plus the LBGR (16.3) will have a 0.30 probability that the survey unit will correctly fail (i.e., the null hypothesis that the difference between the survey unit median and the background median is less than the LBGR [i.e., the survey unit is indistinguishable from background] is rejected).

Based on the number of measurements and the observed standard deviation, a survey unit with a median measurement equal to the background median plus the LBGR (256.5) will have a 1.0 probability that the survey unit will correctly fail (i.e., the null hypothesis that the difference between the survey unit median and the background median is less than the LBGR [i.e., the survey unit is indistinguishable from background] is rejected).

16.3, 0.305

0.000

0.200

0.400

0.600

0.800

1.000

1.200

0 5 10 15 20 25 30

Alpha Measurement (cpm)

Pow

er (P

roba

bilit

y of

Sur

vey

Uni

t Fai

ling)

C0403 Alpha PhoswichData

256.5, 1.00

0.00

0.20

0.40

0.60

0.80

1.00

1.20

0 200 400 600 800 1000 1200 1400

Beta Measurement (cpm)

Pow

er (P

roba

bilit

y of

Sur

vey

Uni

t Fai

ling)

C0403 Beta PhoswichData

Page 7: Retrospective Power Curve NRC License Termination ...C0403 Alpha Phoswich Data 256.5, 1.00 0.00 0.20 0.40 0.60 0.80 1.00 1.20 0 200 400 600 800 1000 1200 1400 Beta Measurement (cpm)

Retrospective Power CurveIgloo C0405

NRC License TerminationSeneca Army Depot Activity

ALPHA PHOSWICH

BETA PHOSWICH

Based on the number of measurements and the observed standard deviation, a survey unit with a median measurement equal to the background median plus the LBGR (16.3) will have a 0.30 probability that the survey unit will correctly fail (i.e., the null hypothesis that the difference between the survey unit median and the background median is less than the LBGR [i.e., the survey unit is indistinguishable from background] is rejected).

Based on the number of measurements and the observed standard deviation, a survey unit with a median measurement equal to the background median plus the LBGR (256.5) will have a 1.0 probability that the survey unit will correctly fail (i.e., the null hypothesis that the difference between the survey unit median and the background median is less than the LBGR [i.e., the survey unit is indistinguishable from background] is rejected).

16.3, 0.30

0.00

0.20

0.40

0.60

0.80

1.00

1.20

0 5 10 15 20 25 30

Alpha Measurement (cpm)

Pow

er (P

roba

bilit

y of

Sur

vey

Uni

t Fai

ling)

C0405 Alpha PhoswichData

256.5, 1.00

0.00

0.20

0.40

0.60

0.80

1.00

1.20

0 200 400 600 800 1000 1200 1400

Beta Measurement (cpm)

Pow

er (P

roba

bilit

y of

Sur

vey

Uni

t Fai

ling)

C0405 Beta PhoswichData

Page 8: Retrospective Power Curve NRC License Termination ...C0403 Alpha Phoswich Data 256.5, 1.00 0.00 0.20 0.40 0.60 0.80 1.00 1.20 0 200 400 600 800 1000 1200 1400 Beta Measurement (cpm)

Retrospective Power CurveIgloo C0406

NRC License TerminationSeneca Army Depot Activity

ALPHA PHOSWICH

BETA PHOSWICH

Based on the number of measurements and the observed standard deviation, a survey unit with a median measurement equal to the background median plus the LBGR (16.3) will have a 0.16 probability that the survey unit will correctly fail (i.e., the null hypothesis that the difference between the survey unit median and the background median is less than the LBGR [i.e., the survey unit is indistinguishable from background] is rejected).

Based on the number of measurements and the observed standard deviation, a survey unit with a median measurement equal to the background median plus the LBGR (256.5) will have a 1.0 probability that the survey unit will correctly fail (i.e., the null hypothesis that the difference between the survey unit median and the background median is less than the LBGR [i.e., the survey unit is indistinguishable from background] is rejected).

16.3, 0.16

0.00

0.20

0.40

0.60

0.80

1.00

1.20

0 5 10 15 20 25 30

Alpha Measurement (cpm)

Pow

er (P

roba

bilit

y of

Sur

vey

Uni

t Fai

ling)

C0406 Alpha PhoswichData

256.5, 1.00

0.00

0.20

0.40

0.60

0.80

1.00

1.20

0 200 400 600 800 1000 1200 1400

Beta Measurement (cpm)

Pow

er (P

roba

bilit

y of

Sur

vey

Uni

t Fai

ling)

C0406 Beta PhoswichData

Page 9: Retrospective Power Curve NRC License Termination ...C0403 Alpha Phoswich Data 256.5, 1.00 0.00 0.20 0.40 0.60 0.80 1.00 1.20 0 200 400 600 800 1000 1200 1400 Beta Measurement (cpm)

Retrospective Power CurveIgloo C0408

NRC License TerminationSeneca Army Depot Activity

ALPHA PHOSWICH

BETA PHOSWICH

Based on the number of measurements and the observed standard deviation, a survey unit with a median measurement equal to the background median plus the LBGR (16.3) will have a 0.30 probability that the survey unit will correctly fail (i.e., the null hypothesis that the difference between the survey unit median and the background median is less than the LBGR [i.e., the survey unit is indistinguishable from background] is rejected).

Based on the number of measurements and the observed standard deviation, a survey unit with a median measurement equal to the background median plus the LBGR (256.5) will have a 1.0 probability that the survey unit will correctly fail (i.e., the null hypothesis that the difference between the survey unit median and the background median is less than the LBGR [i.e., the survey unit is indistinguishable from background] is rejected).

16.3, 0.30

0.00

0.20

0.40

0.60

0.80

1.00

1.20

0 5 10 15 20 25 30

Alpha Measurement (cpm)

Pow

er (P

roba

bilit

y of

Sur

vey

Uni

t Fai

ling)

C0408 Alpha PhoswichData

256.5, 1.00

0.00

0.20

0.40

0.60

0.80

1.00

1.20

0 200 400 600 800 1000 1200 1400

Beta Measurement (cpm)

Pow

er (P

roba

bilit

y of

Sur

vey

Uni

t Fai

ling)

C0408 Beta PhoswichData

Page 10: Retrospective Power Curve NRC License Termination ...C0403 Alpha Phoswich Data 256.5, 1.00 0.00 0.20 0.40 0.60 0.80 1.00 1.20 0 200 400 600 800 1000 1200 1400 Beta Measurement (cpm)

Retrospective Power CurveIgloo C0407

NRC License TerminationSeneca Army Depot Activity

ALPHA PHOSWICH

BETA PHOSWICH

Based on the number of measurements and the observed standard deviation, a survey unit with a median measurement equal to the background median plus the LBGR (16.3) will have a 0.30 probability that the survey unit will correctly fail (i.e., the null hypothesis that the difference between the survey unit median and the background median is less than the LBGR [i.e., the survey unit is indistinguishable from background] is rejected).

Based on the number of measurements and the observed standard deviation, a survey unit with a median measurement equal to the background median plus the LBGR (256.5) will have a 1.0 probability that the survey unit will correctly fail (i.e., the null hypothesis that the difference between the survey unit median and the background median is less than the LBGR [i.e., the survey unit is indistinguishable from background] is rejected).

16.3, 0.30

0.00

0.20

0.40

0.60

0.80

1.00

1.20

0 5 10 15 20 25 30

Alpha Measurement (cpm)

Pow

er (P

roba

bilit

y of

Sur

vey

Uni

t Fai

ling)

C0407 Alpha PhoswichData

256.5, 1.00

0.00

0.20

0.40

0.60

0.80

1.00

1.20

0 200 400 600 800 1000 1200 1400

Beta Measurement (cpm)

Pow

er (P

roba

bilit

y of

Sur

vey

Uni

t Fai

ling)

C0407 Beta PhoswichData

Page 11: Retrospective Power Curve NRC License Termination ...C0403 Alpha Phoswich Data 256.5, 1.00 0.00 0.20 0.40 0.60 0.80 1.00 1.20 0 200 400 600 800 1000 1200 1400 Beta Measurement (cpm)

Retrospective Power CurveIgloo C0501

NRC License TerminationSeneca Army Depot Activity

ALPHA PHOSWICH

BETA PHOSWICH

Based on the number of measurements and the observed standard deviation, a survey unit with a median measurement equal to the background median plus the LBGR (16.3) will have a 0.30 probability that the survey unit will correctly fail (i.e., the null hypothesis that the difference between the survey unit median and the background median is less than the LBGR [i.e., the survey unit is indistinguishable from background] is rejected).

Based on the number of measurements and the observed standard deviation, a survey unit with a median measurement equal to the background median plus the LBGR (256.5) will have a 1.0 probability that the survey unit will correctly fail (i.e., the null hypothesis that the difference between the survey unit median and the background median is less than the LBGR [i.e., the survey unit is indistinguishable from background] is rejected).

16.3, 0.30

0.00

0.20

0.40

0.60

0.80

1.00

1.20

0 5 10 15 20 25 30

Alpha Measurement (cpm)

Pow

er (P

roba

bilit

y of

Sur

vey

Uni

t Fai

ling)

C0501 Alpha PhoswichData

256.5, 1.00

0.00

0.20

0.40

0.60

0.80

1.00

1.20

0 200 400 600 800 1000 1200 1400

Beta Measurement (cpm)

Pow

er (P

roba

bilit

y of

Sur

vey

Uni

t Fai

ling)

C0501 Beta PhoswichData

Page 12: Retrospective Power Curve NRC License Termination ...C0403 Alpha Phoswich Data 256.5, 1.00 0.00 0.20 0.40 0.60 0.80 1.00 1.20 0 200 400 600 800 1000 1200 1400 Beta Measurement (cpm)

Retrospective Power CurveIgloo C0503

NRC License TerminationSeneca Army Depot Activity

ALPHA PHOSWICH

BETA PHOSWICH

Based on the number of measurements and the observed standard deviation, a survey unit with a median measurement equal to the background median plus the LBGR (16.3) will have a 0.30 probability that the survey unit will correctly fail (i.e., the null hypothesis that the difference between the survey unit median and the background median is less than the LBGR [i.e., the survey unit is indistinguishable from background] is rejected).

Based on the number of measurements and the observed standard deviation, a survey unit with a median measurement equal to the background median plus the LBGR (256.5) will have a 1.0 probability that the survey unit will correctly fail (i.e., the null hypothesis that the difference between the survey unit median and the background median is less than the LBGR [i.e., the survey unit is indistinguishable from background] is rejected).

16.3, 0.30

0.00

0.20

0.40

0.60

0.80

1.00

1.20

0 5 10 15 20 25 30

Alpha Measurement (cpm)

Pow

er (P

roba

bilit

y of

Sur

vey

Uni

t Fai

ling)

C0503 Alpha PhoswichData

256.5, 1.00

0.00

0.20

0.40

0.60

0.80

1.00

1.20

0 200 400 600 800 1000 1200 1400

Beta Measurement (cpm)

Pow

er (P

roba

bilit

y of

Sur

vey

Uni

t Fai

ling)

C0503 Beta PhoswichData

Page 13: Retrospective Power Curve NRC License Termination ...C0403 Alpha Phoswich Data 256.5, 1.00 0.00 0.20 0.40 0.60 0.80 1.00 1.20 0 200 400 600 800 1000 1200 1400 Beta Measurement (cpm)

Retrospective Power CurveIgloo C0504

NRC License TerminationSeneca Army Depot Activity

ALPHA PHOSWICH

BETA PHOSWICH

Based on the number of measurements and the observed standard deviation, a survey unit with a median measurement equal to the background median plus the LBGR (16.3) will have a 0.30 probability that the survey unit will correctly fail (i.e., the null hypothesis that the difference between the survey unit median and the background median is less than the LBGR [i.e., the survey unit is indistinguishable from background] is rejected).

Based on the number of measurements and the observed standard deviation, a survey unit with a median measurement equal to the background median plus the LBGR (256.5) will have a 1.0 probability that the survey unit will correctly fail (i.e., the null hypothesis that the difference between the survey unit median and the background median is less than the LBGR [i.e., the survey unit is indistinguishable from background] is rejected).

16.3, 0.30

0.00

0.20

0.40

0.60

0.80

1.00

1.20

0 5 10 15 20 25 30

Alpha Measurement (cpm)

Pow

er (P

roba

bilit

y of

Sur

vey

Uni

t Fai

ling)

C0504 Alpha PhoswichData

256.5, 1.00

0.00

0.20

0.40

0.60

0.80

1.00

1.20

0 200 400 600 800 1000 1200 1400

Beta Measurement (cpm)

Pow

er (P

roba

bilit

y of

Sur

vey

Uni

t Fai

ling)

C0504 Beta PhoswichData

Page 14: Retrospective Power Curve NRC License Termination ...C0403 Alpha Phoswich Data 256.5, 1.00 0.00 0.20 0.40 0.60 0.80 1.00 1.20 0 200 400 600 800 1000 1200 1400 Beta Measurement (cpm)

Retrospective Power CurveIgloo C0505

NRC License TerminationSeneca Army Depot Activity

ALPHA PHOSWICH

BETA PHOSWICH

Based on the number of measurements and the observed standard deviation, a survey unit with a median measurement equal to the background median plus the LBGR (16.3) will have a 0.16 probability that the survey unit will correctly fail (i.e., the null hypothesis that the difference between the survey unit median and the background median is less than the LBGR [i.e., the survey unit is indistinguishable from background] is rejected).

Based on the number of measurements and the observed standard deviation, a survey unit with a median measurement equal to the background median plus the LBGR (256.5) will have a 1.0 probability that the survey unit will correctly fail (i.e., the null hypothesis that the difference between the survey unit median and the background median is less than the LBGR [i.e., the survey unit is indistinguishable from background] is rejected).

16.3, 0.16

0.00

0.20

0.40

0.60

0.80

1.00

1.20

0 5 10 15 20 25 30

Alpha Measurement (cpm)

Pow

er (P

roba

bilit

y of

Sur

vey

Uni

t Fai

ling)

C0505 Alpha PhoswichData

256.5, 1.00

0.00

0.20

0.40

0.60

0.80

1.00

1.20

0 200 400 600 800 1000 1200 1400

Beta Measurement (cpm)

Pow

er (P

roba

bilit

y of

Sur

vey

Uni

t Fai

ling)

C0505 Beta PhoswichData

Page 15: Retrospective Power Curve NRC License Termination ...C0403 Alpha Phoswich Data 256.5, 1.00 0.00 0.20 0.40 0.60 0.80 1.00 1.20 0 200 400 600 800 1000 1200 1400 Beta Measurement (cpm)

Retrospective Power CurveIgloo C0508

NRC License TerminationSeneca Army Depot Activity

ALPHA PHOSWICH

BETA PHOSWICH

Based on the number of measurements and the observed standard deviation, a survey unit with a median measurement equal to the background median plus the LBGR (16.3) will have a 0.30 probability that the survey unit will correctly fail (i.e., the null hypothesis that the difference between the survey unit median and the background median is less than the LBGR [i.e., the survey unit is indistinguishable from background] is rejected).

Based on the number of measurements and the observed standard deviation, a survey unit with a median measurement equal to the background median plus the LBGR (256.5) will have a 1.0 probability that the survey unit will correctly fail (i.e., the null hypothesis that the difference between the survey unit median and the background median is less than the LBGR [i.e., the survey unit is indistinguishable from background] is rejected).

16.3, 0.30

0.00

0.20

0.40

0.60

0.80

1.00

1.20

0 5 10 15 20 25 30

Alpha Measurement (cpm)

Pow

er (P

roba

bilit

y of

Sur

vey

Uni

t Fai

ling)

C0508 Alpha PhoswichData

256.5, 1.00

0.00

0.20

0.40

0.60

0.80

1.00

1.20

0 200 400 600 800 1000 1200 1400

Beta Measurement (cpm)

Pow

er (P

roba

bilit

y of

Sur

vey

Uni

t Fai

ling)

C0508 Beta PhoswichData

Page 16: Retrospective Power Curve NRC License Termination ...C0403 Alpha Phoswich Data 256.5, 1.00 0.00 0.20 0.40 0.60 0.80 1.00 1.20 0 200 400 600 800 1000 1200 1400 Beta Measurement (cpm)

Retrospective Power CurveIgloo C0510

NRC License TerminationSeneca Army Depot Activity

ALPHA PHOSWICH

BETA PHOSWICH

Based on the number of measurements and the observed standard deviation, a survey unit with a median measurement equal to the background median plus the LBGR (16.3) will have a 0.30 probability that the survey unit will correctly fail (i.e., the null hypothesis that the difference between the survey unit median and the background median is less than the LBGR [i.e., the survey unit is indistinguishable from background] is rejected).

Based on the number of measurements and the observed standard deviation, a survey unit with a median measurement equal to the background median plus the LBGR (256.5) will have a 1.0 probability that the survey unit will correctly fail (i.e., the null hypothesis that the difference between the survey unit median and the background median is less than the LBGR [i.e., the survey unit is indistinguishable from background] is rejected).

16.3, 0.30

0.00

0.20

0.40

0.60

0.80

1.00

1.20

0 5 10 15 20 25 30

Alpha Measurement (cpm)

Pow

er (P

roba

bilit

y of

Sur

vey

Uni

t Fai

ling)

C0510 Alpha PhoswichData

256.5, 1.00

0.00

0.20

0.40

0.60

0.80

1.00

1.20

0 200 400 600 800 1000 1200 1400

Beta Measurement (cpm)

Pow

er (P

roba

bilit

y of

Sur

vey

Uni

t Fai

ling)

C0510 Beta PhoswichData

Page 17: Retrospective Power Curve NRC License Termination ...C0403 Alpha Phoswich Data 256.5, 1.00 0.00 0.20 0.40 0.60 0.80 1.00 1.20 0 200 400 600 800 1000 1200 1400 Beta Measurement (cpm)

Retrospective Power CurveIgloo C0511

NRC License TerminationSeneca Army Depot Activity

ALPHA PHOSWICH

BETA PHOSWICH

Based on the number of measurements and the observed standard deviation, a survey unit with a median measurement equal to the background median plus the LBGR (16.3) will have a 0.30 probability that the survey unit will correctly fail (i.e., the null hypothesis that the difference between the survey unit median and the background median is less than the LBGR [i.e., the survey unit is indistinguishable from background] is rejected).

Based on the number of measurements and the observed standard deviation, a survey unit with a median measurement equal to the background median plus the LBGR (256.5) will have a 1.0 probability that the survey unit will correctly fail (i.e., the null hypothesis that the difference between the survey unit median and the background median is less than the LBGR [i.e., the survey unit is indistinguishable from background] is rejected).

16.3, 0.30

0.00

0.20

0.40

0.60

0.80

1.00

1.20

0 5 10 15 20 25 30

Alpha Measurement (cpm)

Pow

er (P

roba

bilit

y of

Sur

vey

Uni

t Fai

ling)

C0511 Alpha PhoswichData

256.5, 1.00

0.00

0.20

0.40

0.60

0.80

1.00

1.20

0 200 400 600 800 1000 1200 1400

Beta Measurement (cpm)

Pow

er (P

roba

bilit

y of

Sur

vey

Uni

t Fai

ling)

C0511 Beta PhoswichData

Page 18: Retrospective Power Curve NRC License Termination ...C0403 Alpha Phoswich Data 256.5, 1.00 0.00 0.20 0.40 0.60 0.80 1.00 1.20 0 200 400 600 800 1000 1200 1400 Beta Measurement (cpm)

Retrospective Power CurveIgloo C0513

NRC License TerminationSeneca Army Depot Activity

ALPHA PHOSWICH

BETA PHOSWICH

Based on the number of measurements and the observed standard deviation, a survey unit with a median measurement equal to the background median plus the LBGR (16.3) will have a 0.30 probability that the survey unit will correctly fail (i.e., the null hypothesis that the difference between the survey unit median and the background median is less than the LBGR [i.e., the survey unit is indistinguishable from background] is rejected).

Based on the number of measurements and the observed standard deviation, a survey unit with a median measurement equal to the background median plus the LBGR (256.5) will have a 1.0 probability that the survey unit will correctly fail (i.e., the null hypothesis that the difference between the survey unit median and the background median is less than the LBGR [i.e., the survey unit is indistinguishable from background] is rejected).

16.3, 0.30

0.00

0.20

0.40

0.60

0.80

1.00

1.20

0 5 10 15 20 25 30

Alpha Measurement (cpm)

Pow

er (P

roba

bilit

y of

Sur

vey

Uni

t Fai

ling)

C0513 Alpha PhoswichData

256.5, 1.00

0.00

0.20

0.40

0.60

0.80

1.00

1.20

0 200 400 600 800 1000 1200 1400

Beta Measurement (cpm)

Pow

er (P

roba

bilit

y of

Sur

vey

Uni

t Fai

ling)

C0513 Beta PhoswichData

Page 19: Retrospective Power Curve NRC License Termination ...C0403 Alpha Phoswich Data 256.5, 1.00 0.00 0.20 0.40 0.60 0.80 1.00 1.20 0 200 400 600 800 1000 1200 1400 Beta Measurement (cpm)

Retrospective Power CurveIgloo C0603

NRC License TerminationSeneca Army Depot Activity

ALPHA PHOSWICH

BETA PHOSWICH

Based on the number of measurements and the observed standard deviation, a survey unit with a median measurement equal to the background median plus the LBGR (16.3) will have a 0.072 probability that the survey unit will correctly fail (i.e., the null hypothesis that the difference between the survey unit median and the background median is less than the LBGR [i.e., the survey unit is indistinguishable from background] is rejected).

Based on the number of measurements and the observed standard deviation, a survey unit with a median measurement equal to the background median plus the LBGR (256.5) will have a 1.0 probability that the survey unit will correctly fail (i.e., the null hypothesis that the difference between the survey unit median and the background median is less than the LBGR [i.e., the survey unit is indistinguishable from background] is rejected).

16.3, 0.072

0.000

0.100

0.200

0.300

0.400

0.500

0.600

0.700

0.800

0 5 10 15 20 25 30

Alpha Measurement (cpm)

Pow

er (P

roba

bilit

y of

Sur

vey

Uni

t Fai

ling)

C0603 Alpha PhoswichData

256.5, 1.00

0.00

0.20

0.40

0.60

0.80

1.00

1.20

0 200 400 600 800 1000 1200 1400

Beta Measurement (cpm)

Pow

er (P

roba

bilit

y of

Sur

vey

Uni

t Fai

ling)

C0603 Beta PhoswichData

Page 20: Retrospective Power Curve NRC License Termination ...C0403 Alpha Phoswich Data 256.5, 1.00 0.00 0.20 0.40 0.60 0.80 1.00 1.20 0 200 400 600 800 1000 1200 1400 Beta Measurement (cpm)

Retrospective Power CurveIgloo C0604

NRC License TerminationSeneca Army Depot Activity

ALPHA PHOSWICH

BETA PHOSWICH

Based on the number of measurements and the observed standard deviation, a survey unit with a median measurement equal to the background median plus the LBGR (16.3) will have a 0.30 probability that the survey unit will correctly fail (i.e., the null hypothesis that the difference between the survey unit median and the background median is less than the LBGR [i.e., the survey unit is indistinguishable from background] is rejected).

Based on the number of measurements and the observed standard deviation, a survey unit with a median measurement equal to the background median plus the LBGR (256.5) will have a 1.0 probability that the survey unit will correctly fail (i.e., the null hypothesis that the difference between the survey unit median and the background median is less than the LBGR [i.e., the survey unit is indistinguishable from background] is rejected).

16.3, 0.30

0.00

0.20

0.40

0.60

0.80

1.00

1.20

0 5 10 15 20 25 30

Alpha Measurement (cpm)

Pow

er (P

roba

bilit

y of

Sur

vey

Uni

t Fai

ling)

C0604 Alpha PhoswichData

256.5, 1.00

0.00

0.20

0.40

0.60

0.80

1.00

1.20

0 200 400 600 800 1000 1200 1400

Beta Measurement (cpm)

Pow

er (P

roba

bilit

y of

Sur

vey

Uni

t Fai

ling)

C0604 Beta PhoswichData

Page 21: Retrospective Power Curve NRC License Termination ...C0403 Alpha Phoswich Data 256.5, 1.00 0.00 0.20 0.40 0.60 0.80 1.00 1.20 0 200 400 600 800 1000 1200 1400 Beta Measurement (cpm)

Retrospective Power CurveIgloo C0605

NRC License TerminationSeneca Army Depot Activity

ALPHA PHOSWICH

BETA PHOSWICH

Based on the number of measurements and the observed standard deviation, a survey unit with a median measurement equal to the background median plus the LBGR (16.3) will have a 0.30 probability that the survey unit will correctly fail (i.e., the null hypothesis that the difference between the survey unit median and the background median is less than the LBGR [i.e., the survey unit is indistinguishable from background] is rejected).

Based on the number of measurements and the observed standard deviation, a survey unit with a median measurement equal to the background median plus the LBGR (256.5) will have a 1.0 probability that the survey unit will correctly fail (i.e., the null hypothesis that the difference between the survey unit median and the background median is less than the LBGR [i.e., the survey unit is indistinguishable from background] is rejected).

16.3, 0.30

0.00

0.20

0.40

0.60

0.80

1.00

1.20

0 5 10 15 20 25 30

Alpha Measurement (cpm)

Pow

er (P

roba

bilit

y of

Sur

vey

Uni

t Fai

ling)

C0605 Alpha PhoswichData

256.5, 1.00

0.00

0.20

0.40

0.60

0.80

1.00

1.20

0 200 400 600 800 1000 1200 1400

Beta Measurement (cpm)

Pow

er (P

roba

bilit

y of

Sur

vey

Uni

t Fai

ling)

C0605 Beta PhoswichData

Page 22: Retrospective Power Curve NRC License Termination ...C0403 Alpha Phoswich Data 256.5, 1.00 0.00 0.20 0.40 0.60 0.80 1.00 1.20 0 200 400 600 800 1000 1200 1400 Beta Measurement (cpm)

Retrospective Power CurveIgloo C0606

NRC License TerminationSeneca Army Depot Activity

ALPHA PHOSWICH

BETA PHOSWICH

Based on the number of measurements and the observed standard deviation, a survey unit with a median measurement equal to the background median plus the LBGR (16.3) will have a 0.30 probability that the survey unit will correctly fail (i.e., the null hypothesis that the difference between the survey unit median and the background median is less than the LBGR [i.e., the survey unit is indistinguishable from background] is rejected).

Based on the number of measurements and the observed standard deviation, a survey unit with a median measurement equal to the background median plus the LBGR (256.5) will have a 1.0 probability that the survey unit will correctly fail (i.e., the null hypothesis that the difference between the survey unit median and the background median is less than the LBGR [i.e., the survey unit is indistinguishable from background] is rejected).

16.3, 0.30

0.00

0.20

0.40

0.60

0.80

1.00

1.20

0 5 10 15 20 25 30

Alpha Measurement (cpm)

Pow

er (P

roba

bilit

y of

Sur

vey

Uni

t Fai

ling)

C0606 Alpha PhoswichData

256.5, 1.00

0.00

0.20

0.40

0.60

0.80

1.00

1.20

0 200 400 600 800 1000 1200 1400

Beta Measurement (cpm)

Pow

er (P

roba

bilit

y of

Sur

vey

Uni

t Fai

ling)

C0606 Beta PhoswichData

Page 23: Retrospective Power Curve NRC License Termination ...C0403 Alpha Phoswich Data 256.5, 1.00 0.00 0.20 0.40 0.60 0.80 1.00 1.20 0 200 400 600 800 1000 1200 1400 Beta Measurement (cpm)

Retrospective Power CurveIgloo C0608

NRC License TerminationSeneca Army Depot Activity

ALPHA PHOSWICH

BETA PHOSWICH

Based on the number of measurements and the observed standard deviation, a survey unit with a median measurement equal to the background median plus the LBGR (16.3) will have a 0.30 probability that the survey unit will correctly fail (i.e., the null hypothesis that the difference between the survey unit median and the background median is less than the LBGR [i.e., the survey unit is indistinguishable from background] is rejected).

Based on the number of measurements and the observed standard deviation, a survey unit with a median measurement equal to the background median plus the LBGR (256.5) will have a 1.0 probability that the survey unit will correctly fail (i.e., the null hypothesis that the difference between the survey unit median and the background median is less than the LBGR [i.e., the survey unit is indistinguishable from background] is rejected).

16.3, 0.30

0.00

0.20

0.40

0.60

0.80

1.00

1.20

0 5 10 15 20 25 30

Alpha Measurement (cpm)

Pow

er (P

roba

bilit

y of

Sur

vey

Uni

t Fai

ling)

C0608 Alpha PhoswichData

256.5, 1.00

0.00

0.20

0.40

0.60

0.80

1.00

1.20

0 200 400 600 800 1000 1200 1400

Beta Measurement (cpm)

Pow

er (P

roba

bilit

y of

Sur

vey

Uni

t Fai

ling)

C0608 Beta PhoswichData

Page 24: Retrospective Power Curve NRC License Termination ...C0403 Alpha Phoswich Data 256.5, 1.00 0.00 0.20 0.40 0.60 0.80 1.00 1.20 0 200 400 600 800 1000 1200 1400 Beta Measurement (cpm)

Retrospective Power CurveIgloo C0701

NRC License TerminationSeneca Army Depot Activity

ALPHA PHOSWICH

BETA PHOSWICH

Based on the number of measurements and the observed standard deviation, a survey unit with a median measurement equal to the background median plus the LBGR (16.3) will have a 0.30 probability that the survey unit will correctly fail (i.e., the null hypothesis that the difference between the survey unit median and the background median is less than the LBGR [i.e., the survey unit is indistinguishable from background] is rejected).

Based on the number of measurements and the observed standard deviation, a survey unit with a median measurement equal to the background median plus the LBGR (256.5) will have a 1.0 probability that the survey unit will correctly fail (i.e., the null hypothesis that the difference between the survey unit median and the background median is less than the LBGR [i.e., the survey unit is indistinguishable from background] is rejected).

16.3, 0.30

0.00

0.20

0.40

0.60

0.80

1.00

1.20

0 5 10 15 20 25 30

Alpha Measurement (cpm)

Pow

er (P

roba

bilit

y of

Sur

vey

Uni

t Fai

ling)

C0701 Alpha PhoswichData

256.5, 1.00

0.00

0.20

0.40

0.60

0.80

1.00

1.20

0 200 400 600 800 1000 1200 1400

Beta Measurement (cpm)

Pow

er (P

roba

bilit

y of

Sur

vey

Uni

t Fai

ling)

C0701 Beta PhoswichData

Page 25: Retrospective Power Curve NRC License Termination ...C0403 Alpha Phoswich Data 256.5, 1.00 0.00 0.20 0.40 0.60 0.80 1.00 1.20 0 200 400 600 800 1000 1200 1400 Beta Measurement (cpm)

Retrospective Power CurveIgloo C0706

NRC License TerminationSeneca Army Depot Activity

ALPHA PHOSWICH

BETA PHOSWICH

Based on the number of measurements and the observed standard deviation, a survey unit with a median measurement equal to the background median plus the LBGR (16.3) will have a 0.16 probability that the survey unit will correctly fail (i.e., the null hypothesis that the difference between the survey unit median and the background median is less than the LBGR [i.e., the survey unit is indistinguishable from background] is rejected).

Based on the number of measurements and the observed standard deviation, a survey unit with a median measurement equal to the background median plus the LBGR (256.5) will have a 1.0 probability that the survey unit will correctly fail (i.e., the null hypothesis that the difference between the survey unit median and the background median is less than the LBGR [i.e., the survey unit is indistinguishable from background] is rejected).

16.3, 0.16

0.00

0.10

0.20

0.30

0.40

0.50

0.60

0.70

0.80

0.90

1.00

0 5 10 15 20 25 30

Alpha Measurement (cpm)

Pow

er (P

roba

bilit

y of

Sur

vey

Uni

t Fai

ling)

C0706 Alpha PhoswichData

256.5, 1.00

0.00

0.20

0.40

0.60

0.80

1.00

1.20

0 200 400 600 800 1000 1200 1400

Beta Measurement (cpm)

Pow

er (P

roba

bilit

y of

Sur

vey

Uni

t Fai

ling)

C0706 Beta PhoswichData

Page 26: Retrospective Power Curve NRC License Termination ...C0403 Alpha Phoswich Data 256.5, 1.00 0.00 0.20 0.40 0.60 0.80 1.00 1.20 0 200 400 600 800 1000 1200 1400 Beta Measurement (cpm)

Retrospective Power CurveIgloo C0707

NRC License TerminationSeneca Army Depot Activity

ALPHA PHOSWICH

BETA PHOSWICH

Based on the number of measurements and the observed standard deviation, a survey unit with a median measurement equal to the background median plus the LBGR (16.3) will have a 0.30 probability that the survey unit will correctly fail (i.e., the null hypothesis that the difference between the survey unit median and the background median is less than the LBGR [i.e., the survey unit is indistinguishable from background] is rejected).

Based on the number of measurements and the observed standard deviation, a survey unit with a median measurement equal to the background median plus the LBGR (256.5) will have a 1.0 probability that the survey unit will correctly fail (i.e., the null hypothesis that the difference between the survey unit median and the background median is less than the LBGR [i.e., the survey unit is indistinguishable from background] is rejected).

16.3, 0.30

0.00

0.20

0.40

0.60

0.80

1.00

1.20

0 5 10 15 20 25 30

Alpha Measurement (cpm)

Pow

er (P

roba

bilit

y of

Sur

vey

Uni

t Fai

ling)

C0707 Alpha PhoswichData

256.5, 1.00

0.00

0.20

0.40

0.60

0.80

1.00

1.20

0 200 400 600 800 1000 1200 1400

Beta Measurement (cpm)

Pow

er (P

roba

bilit

y of

Sur

vey

Uni

t Fai

ling)

C0707 Beta PhoswichData

Page 27: Retrospective Power Curve NRC License Termination ...C0403 Alpha Phoswich Data 256.5, 1.00 0.00 0.20 0.40 0.60 0.80 1.00 1.20 0 200 400 600 800 1000 1200 1400 Beta Measurement (cpm)

Retrospective Power CurveIgloo C0708

NRC License TerminationSeneca Army Depot Activity

ALPHA PHOSWICH

BETA PHOSWICH

Based on the number of measurements and the observed standard deviation, a survey unit with a median measurement equal to the background median plus the LBGR (16.3) will have a 0.30 probability that the survey unit will correctly fail (i.e., the null hypothesis that the difference between the survey unit median and the background median is less than the LBGR [i.e., the survey unit is indistinguishable from background] is rejected).

Based on the number of measurements and the observed standard deviation, a survey unit with a median measurement equal to the background median plus the LBGR (256.5) will have a 1.0 probability that the survey unit will correctly fail (i.e., the null hypothesis that the difference between the survey unit median and the background median is less than the LBGR [i.e., the survey unit is indistinguishable from background] is rejected).

16.3, 0.30

0.00

0.20

0.40

0.60

0.80

1.00

1.20

0 5 10 15 20 25 30

Alpha Measurement (cpm)

Pow

er (P

roba

bilit

y of

Sur

vey

Uni

t Fai

ling)

C0708 Alpha PhoswichData

256.5, 1.00

0.00

0.20

0.40

0.60

0.80

1.00

1.20

0 200 400 600 800 1000 1200 1400

Beta Measurement (cpm)

Pow

er (P

roba

bilit

y of

Sur

vey

Uni

t Fai

ling)

C0708 Beta PhoswichData

Page 28: Retrospective Power Curve NRC License Termination ...C0403 Alpha Phoswich Data 256.5, 1.00 0.00 0.20 0.40 0.60 0.80 1.00 1.20 0 200 400 600 800 1000 1200 1400 Beta Measurement (cpm)

Retrospective Power CurveIgloo C0801

NRC License TerminationSeneca Army Depot Activity

ALPHA PHOSWICH

BETA PHOSWICH

Based on the number of measurements and the observed standard deviation, a survey unit with a median measurement equal to the background median plus the LBGR (16.3) will have a 0.30 probability that the survey unit will correctly fail (i.e., the null hypothesis that the difference between the survey unit median and the background median is less than the LBGR [i.e., the survey unit is indistinguishable from background] is rejected).

Based on the number of measurements and the observed standard deviation, a survey unit with a median measurement equal to the background median plus the LBGR (256.5) will have a 1.0 probability that the survey unit will correctly fail (i.e., the null hypothesis that the difference between the survey unit median and the background median is less than the LBGR [i.e., the survey unit is indistinguishable from background] is rejected).

16.3, 0.30

0.00

0.20

0.40

0.60

0.80

1.00

1.20

0 5 10 15 20 25 30

Alpha Measurement (cpm)

Pow

er (P

roba

bilit

y of

Sur

vey

Uni

t Fai

ling)

C0801 Alpha PhoswichData

256.5, 1.00

0.00

0.20

0.40

0.60

0.80

1.00

1.20

0 200 400 600 800 1000 1200 1400

Beta Measurement (cpm)

Pow

er (P

roba

bilit

y of

Sur

vey

Uni

t Fai

ling)

C0801 Beta PhoswichData

Page 29: Retrospective Power Curve NRC License Termination ...C0403 Alpha Phoswich Data 256.5, 1.00 0.00 0.20 0.40 0.60 0.80 1.00 1.20 0 200 400 600 800 1000 1200 1400 Beta Measurement (cpm)

Retrospective Power CurveIgloo C0803

NRC License TerminationSeneca Army Depot Activity

ALPHA PHOSWICH

BETA PHOSWICH

Based on the number of measurements and the observed standard deviation, a survey unit with a median measurement equal to the background median plus the LBGR (16.3) will have a 0.30 probability that the survey unit will correctly fail (i.e., the null hypothesis that the difference between the survey unit median and the background median is less than the LBGR [i.e., the survey unit is indistinguishable from background] is rejected).

16.3, 0.30

0.00

0.20

0.40

0.60

0.80

1.00

1.20

0 5 10 15 20 25 30

Alpha Measurement (cpm)

Pow

er (P

roba

bilit

y of

Sur

vey

Uni

t Fai

ling)

C0803 Alpha PhoswichData

256.5, 1.00

0.00

0.20

0.40

0.60

0.80

1.00

1.20

0 200 400 600 800 1000 1200 1400

Beta Measurement (cpm)

Pow

er (P

roba

bilit

y of

Sur

vey

Uni

t Fai

ling)

C0803 Beta PhoswichData

Page 30: Retrospective Power Curve NRC License Termination ...C0403 Alpha Phoswich Data 256.5, 1.00 0.00 0.20 0.40 0.60 0.80 1.00 1.20 0 200 400 600 800 1000 1200 1400 Beta Measurement (cpm)

Retrospective Power CurveIgloo C0807

NRC License TerminationSeneca Army Depot Activity

ALPHA PHOSWICH

BETA PHOSWICH

Based on the number of measurements and the observed standard deviation, a survey unit with a median measurement equal to the background median plus the LBGR (16.3) will have a 0.30 probability that the survey unit will correctly fail (i.e., the null hypothesis that the difference between the survey unit median and the background median is less than the LBGR [i.e., the survey unit is indistinguishable from background] is rejected).

Based on the number of measurements and the observed standard deviation, a survey unit with a median measurement equal to the background median plus the LBGR (256.5) will have a 1.0 probability that the survey unit will correctly fail (i.e., the null hypothesis that the difference between the survey unit median and the background median is less than the LBGR [i.e., the survey unit is indistinguishable from background] is rejected).

16.3, 0.30

0.00

0.20

0.40

0.60

0.80

1.00

1.20

0 5 10 15 20 25 30

Alpha Measurement (cpm)

Pow

er (P

roba

bilit

y of

Sur

vey

Uni

t Fai

ling)

C0807 Alpha PhoswichData

256.5, 1.00

0.00

0.20

0.40

0.60

0.80

1.00

1.20

0 200 400 600 800 1000 1200 1400

Beta Measurement (cpm)

Pow

er (P

roba

bilit

y of

Sur

vey

Uni

t Fai

ling)

C0807 Beta PhoswichData

Page 31: Retrospective Power Curve NRC License Termination ...C0403 Alpha Phoswich Data 256.5, 1.00 0.00 0.20 0.40 0.60 0.80 1.00 1.20 0 200 400 600 800 1000 1200 1400 Beta Measurement (cpm)

Retrospective Power CurveIgloo C0809

NRC License TerminationSeneca Army Depot Activity

ALPHA PHOSWICH

BETA PHOSWICH

Based on the number of measurements and the observed standard deviation, a survey unit with a median measurement equal to the background median plus the LBGR (16.3) will have a 0.30 probability that the survey unit will correctly fail (i.e., the null hypothesis that the difference between the survey unit median and the background median is less than the LBGR [i.e., the survey unit is indistinguishable from background] is rejected).

Based on the number of measurements and the observed standard deviation, a survey unit with a median measurement equal to the background median plus the LBGR (256.5) will have a 1.0 probability that the survey unit will correctly fail (i.e., the null hypothesis that the difference between the survey unit median and the background median is less than the LBGR [i.e., the survey unit is indistinguishable from background] is rejected).

16.3, 0.30

0.00

0.20

0.40

0.60

0.80

1.00

1.20

0 5 10 15 20 25 30

Alpha Measurement (cpm)

Pow

er (P

roba

bilit

y of

Sur

vey

Uni

t Fai

ling)

C0809 Alpha PhoswichData

256.5, 1.00

0.00

0.20

0.40

0.60

0.80

1.00

1.20

0 200 400 600 800 1000 1200 1400

Beta Measurement (cpm)

Pow

er (P

roba

bilit

y of

Sur

vey

Uni

t Fai

ling)

C0809 Beta PhoswichData

Page 32: Retrospective Power Curve NRC License Termination ...C0403 Alpha Phoswich Data 256.5, 1.00 0.00 0.20 0.40 0.60 0.80 1.00 1.20 0 200 400 600 800 1000 1200 1400 Beta Measurement (cpm)

Retrospective Power CurveIgloo C0901

NRC License TerminationSeneca Army Depot Activity

ALPHA PHOSWICH

BETA PHOSWICH

Based on the number of measurements and the observed standard deviation, a survey unit with a median measurement equal to the background median plus the LBGR (16.3) will have a 0.30 probability that the survey unit will correctly fail (i.e., the null hypothesis that the difference between the survey unit median and the background median is less than the LBGR [i.e., the survey unit is indistinguishable from background] is rejected).

Based on the number of measurements and the observed standard deviation, a survey unit with a median measurement equal to the background median plus the LBGR (256.5) will have a 1.0 probability that the survey unit will correctly fail (i.e., the null hypothesis that the difference between the survey unit median and the background median is less than the LBGR [i.e., the survey unit is indistinguishable from background] is rejected).

16.3, 0.30

0.00

0.20

0.40

0.60

0.80

1.00

1.20

0 5 10 15 20 25 30

Alpha Measurement (cpm)

Pow

er (P

roba

bilit

y of

Sur

vey

Uni

t Fai

ling)

C0901 Alpha PhoswichData

256.5, 1.00

0.00

0.20

0.40

0.60

0.80

1.00

1.20

0 200 400 600 800 1000 1200 1400

Beta Measurement (cpm)

Pow

er (P

roba

bilit

y of

Sur

vey

Uni

t Fai

ling)

C0901 Beta PhoswichData

Page 33: Retrospective Power Curve NRC License Termination ...C0403 Alpha Phoswich Data 256.5, 1.00 0.00 0.20 0.40 0.60 0.80 1.00 1.20 0 200 400 600 800 1000 1200 1400 Beta Measurement (cpm)

Retrospective Power CurveIgloo C0902

NRC License TerminationSeneca Army Depot Activity

ALPHA PHOSWICH

BETA PHOSWICH

Based on the number of measurements and the observed standard deviation, a survey unit with a median measurement equal to the background median plus the LBGR (16.3) will have a 0.30 probability that the survey unit will correctly fail (i.e., the null hypothesis that the difference between the survey unit median and the background median is less than the LBGR [i.e., the survey unit is indistinguishable from background] is rejected).

Based on the number of measurements and the observed standard deviation, a survey unit with a median measurement equal to the background median plus the LBGR (256.5) will have a 1.0 probability that the survey unit will correctly fail (i.e., the null hypothesis that the difference between the survey unit median and the background median is less than the LBGR [i.e., the survey unit is indistinguishable from background] is rejected).

16.3, 0.30

0.00

0.20

0.40

0.60

0.80

1.00

1.20

0 5 10 15 20 25 30

Alpha Measurement (cpm)

Pow

er (P

roba

bilit

y of

Sur

vey

Uni

t Fai

ling)

C0902 Alpha PhoswichData

256.5, 1.00

0.00

0.20

0.40

0.60

0.80

1.00

1.20

0 200 400 600 800 1000 1200 1400

Beta Measurement (cpm)

Pow

er (P

roba

bilit

y of

Sur

vey

Uni

t Fai

ling)

C0902 Beta PhoswichData

Page 34: Retrospective Power Curve NRC License Termination ...C0403 Alpha Phoswich Data 256.5, 1.00 0.00 0.20 0.40 0.60 0.80 1.00 1.20 0 200 400 600 800 1000 1200 1400 Beta Measurement (cpm)

Retrospective Power CurveIgloo C0906

NRC License TerminationSeneca Army Depot Activity

ALPHA PHOSWICH

BETA PHOSWICH

Based on the number of measurements and the observed standard deviation, a survey unit with a median measurement equal to the background median plus the LBGR (16.3) will have a 0.072 probability that the survey unit will correctly fail (i.e., the null hypothesis that the difference between the survey unit median and the background median is less than the LBGR [i.e., the survey unit is indistinguishable from background] is rejected).

Based on the number of measurements and the observed standard deviation, a survey unit with a median measurement equal to the background median plus the LBGR (256.5) will have a 1.0 probability that the survey unit will correctly fail (i.e., the null hypothesis that the difference between the survey unit median and the background median is less than the LBGR [i.e., the survey unit is indistinguishable from background] is rejected).

16.3, 0.072

0.00

0.10

0.20

0.30

0.40

0.50

0.60

0.70

0.80

0.90

0 5 10 15 20 25 30

Alpha Measurement (cpm)

Pow

er (P

roba

bilit

y of

Sur

vey

Uni

t Fai

ling)

C0906 Alpha PhoswichData

256.5, 1.00

0.00

0.20

0.40

0.60

0.80

1.00

1.20

0 200 400 600 800 1000 1200 1400

Beta Measurement (cpm)

Pow

er (P

roba

bilit

y of

Sur

vey

Uni

t Fai

ling)

C0906 Beta PhoswichData

Page 35: Retrospective Power Curve NRC License Termination ...C0403 Alpha Phoswich Data 256.5, 1.00 0.00 0.20 0.40 0.60 0.80 1.00 1.20 0 200 400 600 800 1000 1200 1400 Beta Measurement (cpm)

Retrospective Power CurveIgloo C0907

NRC License TerminationSeneca Army Depot Activity

ALPHA PHOSWICH

BETA PHOSWICH

Based on the number of measurements and the observed standard deviation, a survey unit with a median measurement equal to the background median plus the LBGR (16.3) will have a 0.30 probability that the survey unit will correctly fail (i.e., the null hypothesis that the difference between the survey unit median and the background median is less than the LBGR [i.e., the survey unit is indistinguishable from background] is rejected).

Based on the number of measurements and the observed standard deviation, a survey unit with a median measurement equal to the background median plus the LBGR (256.5) will have a 1.0 probability that the survey unit will correctly fail (i.e., the null hypothesis that the difference between the survey unit median and the background median is less than the LBGR [i.e., the survey unit is indistinguishable from background] is rejected).

16.3, 0.30

0.00

0.20

0.40

0.60

0.80

1.00

1.20

0 5 10 15 20 25 30

Alpha Measurement (cpm)

Pow

er (P

roba

bilit

y of

Sur

vey

Uni

t Fai

ling)

C0907 Alpha PhoswichData

256.5, 1.00

0.00

0.20

0.40

0.60

0.80

1.00

1.20

0 200 400 600 800 1000 1200 1400

Beta Measurement (cpm)

Pow

er (P

roba

bilit

y of

Sur

vey

Uni

t Fai

ling)

C0907 Beta PhoswichData

Page 36: Retrospective Power Curve NRC License Termination ...C0403 Alpha Phoswich Data 256.5, 1.00 0.00 0.20 0.40 0.60 0.80 1.00 1.20 0 200 400 600 800 1000 1200 1400 Beta Measurement (cpm)

Retrospective Power CurveIgloo C0908

NRC License TerminationSeneca Army Depot Activity

ALPHA PHOSWICH

BETA PHOSWICH

Based on the number of measurements and the observed standard deviation, a survey unit with a median measurement equal to the background median plus the LBGR (16.3) will have a 0.30 probability that the survey unit will correctly fail (i.e., the null hypothesis that the difference between the survey unit median and the background median is less than the LBGR [i.e., the survey unit is indistinguishable from background] is rejected).

Based on the number of measurements and the observed standard deviation, a survey unit with a median measurement equal to the background median plus the LBGR (256.5) will have a 1.0 probability that the survey unit will correctly fail (i.e., the null hypothesis that the difference between the survey unit median and the background median is less than the LBGR [i.e., the survey unit is indistinguishable from background] is rejected).

16.3, 0.30

0.00

0.20

0.40

0.60

0.80

1.00

1.20

0 5 10 15 20 25 30

Alpha Measurement (cpm)

Pow

er (P

roba

bilit

y of

Sur

vey

Uni

t Fai

ling)

C0908 Alpha PhoswichData

256.5, 1.00

0.00

0.20

0.40

0.60

0.80

1.00

1.20

0 200 400 600 800 1000 1200 1400

Beta Measurement (cpm)

Pow

er (P

roba

bilit

y of

Sur

vey

Uni

t Fai

ling)

C0908 Beta PhoswichData

Page 37: Retrospective Power Curve NRC License Termination ...C0403 Alpha Phoswich Data 256.5, 1.00 0.00 0.20 0.40 0.60 0.80 1.00 1.20 0 200 400 600 800 1000 1200 1400 Beta Measurement (cpm)

Retrospective Power CurveIgloo C0909

NRC License TerminationSeneca Army Depot Activity

ALPHA PHOSWICH

BETA PHOSWICH

Based on the number of measurements and the observed standard deviation, a survey unit with a median measurement equal to the background median plus the LBGR (16.3) will have a 0.30 probability that the survey unit will correctly fail (i.e., the null hypothesis that the difference between the survey unit median and the background median is less than the LBGR [i.e., the survey unit is indistinguishable from background] is rejected).

Based on the number of measurements and the observed standard deviation, a survey unit with a median measurement equal to the background median plus the LBGR (256.5) will have a 1.0 probability that the survey unit will correctly fail (i.e., the null hypothesis that the difference between the survey unit median and the background median is less than the LBGR [i.e., the survey unit is indistinguishable from background] is rejected).

16.3, 0.30

0.00

0.20

0.40

0.60

0.80

1.00

1.20

0 5 10 15 20 25 30

Alpha Measurement (cpm)

Pow

er (P

roba

bilit

y of

Sur

vey

Uni

t Fai

ling)

C0909 Alpha PhoswichData

256.5, 1.00

0.00

0.20

0.40

0.60

0.80

1.00

1.20

0 200 400 600 800 1000 1200 1400

Beta Measurement (cpm)

Pow

er (P

roba

bilit

y of

Sur

vey

Uni

t Fai

ling)

C0909 Beta PhoswichData