ML070230432
| ML070230432 | |
| Person / Time | |
|---|---|
| Site: | Yankee Rowe |
| Issue date: | 11/09/2005 |
| From: | Yankee Atomic Electric Co |
| To: | NRC/FSME |
| References | |
| Download: ML070230432 (3) | |
Text
ALARA Analysis Worksheet I Survey Area: SVC-01 Survey Unit: 18 I A. Estimation of Total Cost (CostT) work (CostR) (assume 3-staff crew for 1 day@average $60 per hour; cost for heavy equipment not included)
- 2. Cost of waste disposal (CostwD) = (2.a) (2.b)
- a. estimated waste volume: 1 m3
- b. cost of waste disposal: $670/m3
- 3. Cost of workplace accident (CostAcc) = $3,000,000 person'1.4.2x10-' h-' (3.a)
- a. time to perform remediation action: 30 person-hours
- 4. Cost of traffic fatality (CostTF) =
{$3,000,000. 3.8~10" km-I (2.a). (4.a))/(4.b)
- a. total distance traveled per shipment: 4 100 km
- b. waste volume per shipment: 13.6 m3, if unknown, use 13.6m3 as a default value
- 5. Cost of worker dose (CostwD,,,) = $2,000 per person-rem. (5.a) (5.b)
- a. worker TEDE:
r emih
- b. remediation exposure time person-hour I B. Survey Unit Radiological Information Radionuclide Average Concentration Relative Fractiona Half-Life (y)
- 1. Co-60
- a. 6622 dpd100cm2
- b. 1
- c. 5.271
- 2.
- a.
- b.
- c.
- 8.
- a.
- b.
- c.
Total Concentration:
" Relative fraction = average concentration divided by the total concentration.
Decay constant = 0.693 divided by half-life.
Decay constantb (y-')
- d. 0.13
- d.
- d.
DPF-8867.1 Page 1 of 3
I C. Calculation of ALARA Action Level (AL)
- 1. Removable fiaction for remediation action being evaluated: 1.0
- 2. Monetary discount rate: 0.03 v1
- 3. Number of years over which the collective dose is calculated: 1000 y
- 4. Population density for the critical group: 0.0004 ~eople/m~
- 5. Area being evaluated: 100 m2
- 6. AL for each radionuclide-of-interest:
- a. AL = {C0st~/($2000. C.4 0.025 C. 1. C.5)) ((C.2 + B. 1.d)/(l-e-(C.2+B.1..d)
' C'3 ) (B.1.b) = 1356
- b. AL = f C0st~/($2000 C.4. 0.025 C. 1. C.5)). ((C.2 + ~.2.d)/(l
-e-(C'2+B.2d)
C'3 > (B.2.b) =
- c. AL = {Costr/($2000 C.4 0.025 C.l C.5)). f(C.2 + ~.3.d)/(l-e-(~.~'~.~~~~)'~~~
(B.3.b) =
- d. AL = {COS~~/($($~OOO
. C.4 0.025. C.1. C.5)) ((C.2 + ~.4.d)/(l-e'(~"+~.~..~)'~.~
> fB.4.b) =
- e. AL = f C0st~/($2000. C.4. 0.025 C. 1. C.5)) f(C.2 + ~.5.d)/(l-e-(~.~+~.~..~)'
C'3. (B.5.b) =
- f. AL = (C0st~/($2000 C.4. 0.025
- C. 1. C.5)) ((C.2 + ~.6.d)/(l
-e-(C.2'B.6.'d)
' C.3 (B.6.b) =
- g. AL = {C0st~/($2000 C.4
- 0.025. C.l C.5)). f(C.2 + ~.7.d)/(l-e-(~.~'~.~..~)'~.~
(B.7.b) =
- h. AL = fC0~t~/($2000 C.4. 0.025. C.l C.5)) f(C.2 + ~.8.d)/(l-e-(~.~+~.~~.~)'~.~
). (B.8.b) =
7 Sum ofALs (= ALARA AL) = 1356 E D.
Evaluation Radionuclide DCGL DCGL Fractiona 9........................................................................... Sum of DCGL Fractions = 1.O I a DCGL fiaction = average residual concentration in survey unit (fiom Section B) divided by the DCGL.
DPF-8867.1 Page 2 of 3
Check one: Sum of the DCGL Fractions < ALARA AL J
Sum of the DCGL Fractions > ALARA AL
- 12. Decision Criteria: If the sum of the DCGL fractions < AL, then additional remediation is not cost beneficial. If the sum of the DCGL fractions > AL, then additional remediation is cost beneficial.
Check one:
Additional remediation IS NOT cost beneficial J
Additional remediation IS cost beneficial Prepared by 9. /QrLPrZ Date 11-777 FSS Radiological Engineer Reviewed by d ' ' m/&
FSS project Manager DPF-8867.1 Page 3 of 3