ML050880061

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Licensee Procedure HPIP 4.40 TEDE ALARA Evaluation, Revision 0
ML050880061
Person / Time
Site: Point Beach  NextEra Energy icon.png
Issue date: 02/06/2002
From:
- No Known Affiliation
To:
Office of Nuclear Reactor Regulation
References
FOIA/PA-2004-0282 HPIP 4.40, Rev 0
Download: ML050880061 (13)
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Text

HPIP 4.40 TEDE ALARA EVALUATION DOCUMENT TYPE: Administrative REVISION: 0 EFFECTIVE DATE: February 6, 2002 APPROVAL AUTHORITY: Department Manager PROCEDURE OWNER (title): Radiological Engineer OWNER GROUP: Radiation Protection

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POINT BEACH NUCLEAR PLANT HPIP 4.40 HEALTH PHYSICS IMPLEMENTING PROCEDURES Revision 0 February 6, 2002 TEDE ALARA EVALUATION TABLE OF CONTENTS SECTION TITLE PAGE 1.0 PURPOSE ............... 3 2.0 DISCUSSION ............... 3 3.0 RESPONSIBILITIES ............... 4 4.0 PROCEDURE ............... 4

5.0 REFERENCES

............... 5 6.0 BASES ............... 5 Page 2 of 13 INFORMATION USE

POINT BEACH NUCLEAR PLANT HPIP 4.40 HEALTH PHYSICS IMPLEMENTING PROCEDURES Revision 0 February 6, 2002 TEDE ALARA EVALUATION 1.0 PURPOSE 1.1 This procedure establishes the methods and practices to be used to perform a TEDE ALARA evaluation.

1.2 This procedure applies to all plant activities that generate airborne radioactivity.

2.0 DISCUSSION 2.1 Radiation protection practices have long emphasized avoiding unnecessary exposures.

This principle, now referred to as ALARA, means making every effort to maintain radiation dose as low as reasonably achievable. As a licensee of the NRC, we are required to implement a radiation protection program consisting of procedures and engineering controls to achieve occupational radiation dose that is ALARA.

2.2 When a specific ALARA evaluation is performed to justify the use or nonuse of respirators, the evaluation should consider the following:

2.2.1 The use of process and engineering controls, filtered ventilation systems and decontamination before the use of respiratory protection equipment; 2.2.2 Control of access, limitation of exposure time and the use of other types of exposure controls before the use of respiratory protection equipment; 2.2.3 The estimated benefit. The evaluation should show that the TEDE for the job will be ALARA, i.e., the internal dose avoided by using the respiratory protection equipment is likely to be greater than any additional external dose that may result from the use of respiratory protection equipment from respirator-induced inefficiency and other factors.

2.3 When application of engineering controls to keep radioactive material in air below values that constitute an Airborne Radioactivity Area is NOT practical, then other controls shall be implemented to maintain the total effective dose equivalent (TEDE) ALARA. The use of a respiratory device with a lower protection factor (PF) than the peak concentration may be selected to be consistent with TEDE ALARA 2.4 When the TEDE ALARA evaluation results do not show a clear, obvious indication of whether or not the use of a respirator is ALARA, professional judgment may be used as to whether or not to assign a respirator.

2.5 Terms used in this procedure:

ALARA - The operating principle of radiological protection that states that measures are to be implemented to keep radiation dose and intakes "as low as reasonably achievable."

Page 3 of 13 INFORMATION USE

POINT BEACH NUCLEAR PLANT HPIP 4.40 HEALTH PHYSICS IMPLEMENTING PROCEDURES Revision 0 February 6, 2002 TEDE ALARA EVALUATION Total Effective Dose Equivalent, TEDE - The sum of the deep-dose equivalent (for external exposures) and the Committed Effective Dose Equivalent (for internal exposures).

Deep-Dose Equivalent, DDE - The dose equivalent at a tissue depth of 1 cm (1000 mg/cm2 ).

Dervived Air Concentration, DAC - The concentration of a given radionuclide in air, which, if breathed by the reference man for a working year of 2,000 hours0 days <br />0 hours <br />0 weeks <br />0 months <br /> under conditions of light work, results in an intake of one ALI.

3.0 RESPONSIBILITIES None 4.0 PROCEDURE 4.1 A TEDE ALARA evaluation shall be done whenever the use of respiratory protection equipment is considered for the protection of personnel against airborne radioactive material or when the airborne contamination concentration will exceed 25 percent of a DAC. The evaluation should be documented using PBF-4230a.

NOTE: A TEDE ALARA evaluation does not need to be done before requiring the use of respiratory protection equipment as a precautionary measure when there is a large uncertainty about the magnitude of the projected concentrations of airborne radioactive material to which workers will be exposed (e.g., a new job with significant airborne contamination potential, but with no history of previous similar jobs). This is regardless of the magnitude of the projected external and internal dose.

4.2 To do the evaluation perform the following using PBF-4230a:

NOTE: For unknown mixtures of radionuclides, the PBNP specific DAC values, as given in HPIP 3.52, shall be used.

4.2.1 Describe the work to be performed. Highlight the work activities that may disturb contaminated surfaces and the manner by which the surfaces are disturbed. Include the time that the maximum exposed individual is expected to be in the area of concern. List expected dose rates, contamination levels and average ambient concentration of radioactive material in work place air (or the estimated average). The air concentration values should be expressed as fraction or percent of DAC. The values should be based on historical data or may be estimated using Tables 1 through 4 for beta/gamma contamination and Tables 5 through 8 for alpha contamination.

4.2.2 Describe the environmental conditions including elevated temperature and noise conditions and impacts on personnel safety.

Page 4 of 13 INFORMATION USE

POINT BEACH NUCLEAR PLANT HPIP 4.40 HEALTH PHYSICS IMPLEMENTING PROCEDURES Revision 0 February 6, 2002 TEDE ALARA EVALUATION 4.2.3 Describe the process and engineering controls that will be used.

4.2.4 Describe the protective equipment and clothing, including the respirator, to be used and their effects on worker efficiency. Describe the comfort level of the worker regarding the use of the respirator.

4.2.5 Describe potential post-work negative impacts. Include the effects of personnel contaminations and skin dose assessments, portal monitor alarms, etc.

4.2.6 Calculate the dose that will be received not using respiratory protection equipment.

4.2.7 Calculate the dose that will be received using respiratory protection equipment. Respirator protection factors are listed in the legend at the bottom of Tables 1 through 8. If the impact of respirator protection equipment use on worker productivity is not known, assume that work time is increased by fifteen percent~l).

4.2.8 If the total dose using a respirator is less than or equal to the total dose not using a respirator, then the use of respiratory protection equipment is warranted. For instances where the above condition is not met, respirator use may still be warranted due to the benefits provided by nonradiological factors.

An example is the benefit of an air-supplied suit that provides cooling.

4.2.9 Complete the TEDE ALARA form and submit to RP Supervision for review.

4.3 Voluntary Use Respirators If the TEDE ALARA evaluation determines respiratory protection is not warranted, but the workers want some device, a dust mask (or filtering facepiece) may be used by the individual(s). Dust masks can be obtained at Ready Stores for this purpose.

5.0 REFERENCES

5.1 PBF-4230a, TEDE ALARA Evaluation 5.2 NP 4.2.1, ALARA Program 5.3 HPIP 4.57, Respirator Selection 6.0 BASES B-i Regulatory Guide 8.15, Acceptable Programs for Respiratory Protection, Revision 1, October 1999.

Page 5 of 13 INFORMATION USE

POINT BEACH NUCLEAR PLANT HPIP 4.40 HEALTH PHYSICS IMPLEMENTING PROCEDURES Revision 0 February 6, 2002 TEDE ALARA EVALUATION TABLE 1 Inspection Only - No Ongoing Work (walk-thru and/or visual examination only)

Potential Beta/Gamma Airborne Hazard as a Function of Working Environment Loose Surface Contamination (LSC) Effective DAC Fraction (dprn/100 sq. cm.) (mrad/h) Confined Area Normal Vent Neg. Flow Glovebox l.OOE+02 I1.OOE-03 0.000 0.000 0.000 0.000 2.50E+02 2.50E-03 0.000 0.000 0.000 0.000 5.OOE+02 5.OOE-03 0.000 0.000 0.000 0.000 I .OOE+03 I .OOE-02 0.000 0.000 0.000 0.000 2.50E+03 2.50E-02 0.001 0.000 0.000 0.000 5.OOE+03 5.OOE-02 0.001 0.000 0.000 0.000 1.00E+04 I.OOE-0 0.002 0.000 0.000 0.000 2.50E+04 2.50E-01 0.006 0.001 0.000 0.000 5.00E+04 5.00E-01 0.011 0.001 0.000 0.000 7.50E+04 7.50E-01 0.017 0.002 0.000 0.000 1.00E+05 I.00E+00 0.023 0.002 0.000 0.000 1.50E+05 1.50E+00 0.034 0.003 0.000 0.000 2.00E+05 2.00E+00 0.045 0.005 0.000 0.000 2.50E+05 2.50E+00 0.056 0.006 0.001 0.000 3.OOE+05 3.00E+00 0.068 0.007 0.001 0.000 4.00E+05 4.OOE+00 0.090 0.009 0.001 0.000 5.OOE+05 5.00E+00 0.113 0.011 0.001 0.000 7.50E+05 7.50E+00 0.169 0.017 0.002 0.000 1.00E+06 I .OOE+0 0.225 0.023 0.002 0.000 2.00E+06 2.OOE+01 0.450 0.045 0.005 0.000 3.OOE+06 3.OOE+01 0.675 0.068 0.007 0.001 5.00E+06 5.OOE+01 1.125 0.113 0.011 0.001 7.50E+06 7.50E+01 1.688 0.169 0.017 0.002 I .00E+07 I .OOE+02 2.250 0.225 0.023 0.002 2.00E+07 2.OOE+02 4.500 0.450 0.045 0.005 4.00E+07 4.OOE+02 9.000 0.900 0.090 0.009 6.00E+07 6.OOE+02 13.500 1.350 0.135 0.014 8.OOE+07 8.OOE+02 18.000 1.800 0.180 0.018 I.00E+08 1.OOE+03 22.500 2.250 0.225 0.023 2.OOE+08 2.OOE+03 45.000 4.500 0.450 0.045 Legend: < I DAC

> 1 DAC and < 50 DAC (PF Neg. Press. RespJPAPR = 50)

' -' "' ! is"', j';

-":- I,-...~ > 50 DAC and < 1000 DAC (PF Airline/Hood = 1000)

> lOOODACand< IOO00DAC(PFSCBA= 10000)

,--, -, . " - - :- '. . -,- .. :1 P > 10000 DAC (>PF of Resp. Protection; Special Considerations)

Page 6 of 13 INFORMATION USE

POINT BEACH NUCLEAR PLANT HPIP 4.40 HEALTH PHYSICS IMPLEMENTING PROCEDURES Revision 0 February 6, 2002 TEDE ALARA EVALUATION TABLE 2 Wet Decon/Routine Maintenance (wet surface wipedown, routine maintenance)

Potential Beta/Gamma Airborne Hazard as a Function of Working Environment Loose Surface Contamination (LSC) Effective DAC Fraction (dpm/100 sq. cm.) (mrad/h) Confined Area Normal Vent Neg. Flow Glovebox l.OOE+02 I.00-03 0.000 0.000 0.000 0.000 2.50E+02 2.50E-03 0.001 0.000 0.000 0.000 5.OOE+02 5.OOE-03 0.001 0.000 0.000 0.000 I.00E+03 1.00-02 0.002 0.000 0.000 0.000 2.50E+03 2.50E-02 0.006 0.001 0.000 0.000 5.OOE+03 5.00E-02 0.011 0.001 0.000 0.000 I.OOE+04 1.OOE-01 0.023 0.002 0.000 0.000 2.50E+04 2.50E-01 0.056 0.006 0.001 0.000 5.OOE+04 5.00E-01 0.113 0.011 0.001 0.000 7.50E+04 7.50E-01 0.169 0.017 0.002 0.000 I.00E+05 1.00E+00 0.225 0.023 0.002 0.000 1.SOE+05 I.SOE+00 0.338 0.034 0.003 0.000 2.OOE+05 2.00E+00 0.450 0.045 0.005 0.000 2.50E+05 2.50E+00 0.563 0.056 0.006 0.001 3.OOE+05 3.OOE+00 0.675 0.068 0.007 0.001 4.00E+05 4.00E+00 0.900 0.090 0.009 0.001 5.OOE+05 5.00E+00 1.125 0.113 0.011 0.001 7.50E+05 7.50E+00 1.688 0.169 0.017 0.002 I.OOE+06 1.00E+01 2.250 0.225 0.023 0.002 2.00E+06 2.00E+01 4.500 0.450 0.045 0.005 3.OOE+06 3.OOE+01 6.750 0.675 0.068 0.007 5.OOE+06 5.00E+01 11.250 1.125 0.113 0.011 7.50E+06 7.50E+01 16.875 1.688 0.169 0.017 I.00E+07 1.OOE+02 22.500 2.250 0.225 0.023 2.00E+07 2.00E+02 45.000 4.500 0.450 0.045 4.00E+07 4.00E+02 .!Ye/-90.000)l- 9.000 0.900 0.090 6.OOE+07 6.00E+02 st§gl35.000t',Jil 13.500 1.350 0.135 8.00E+07 8.00E+02 -5180.000 q io 18.000 1.800 0.180 1.00O+08 1.00E+03 225.000

,.& S 22.500 2.250 0.225 2.00E+08 2.00E+03 QA.4500000 ' 45.000 4.500 0.450 Legend: < I DAC

> I DAC and < 50 DAC (PF Neg. Press. RespJPAPR = 50)

-.' -, <. .=- - Y .3i,;,.

> 50 DAC and < 1000 DAC (PF Airline/Hood = 1000)

.¢ l.1 :,Ie

> 1000 DAC and < 10000 DAC (PF SCBA = 10000)

> 10000 DAC (>PF of Resp. Protection; Special Considerations)

Page 7 of 13 INFORMATION USE

POINT BEACH NUCLEAR PLANT HPIP 4.40 HEALTH PHYSICS IMPLEMENTING PROCEDURES Revision 0 February 6, 2002 TEDE ALARA EVALUATION TABLE 3 Abrasive or Dry Surface Decon (sweeping, scrubbing)

Potential Beta/Gamma Airborne Hazard as a Function of Working Environment Loose Surface Contamination (LSC) Effective DAC Fraction (dpm/100 sq. cm.) (mradlh) Confined Area Normal Vent Neg. Flow Glovebox 1.OOE+02 I.OOE-03 0.002 0.000 0.000 0.000 2.50E+02 2.50E-03 0.006 0.001 0.000 0.000 5.OOE+02 5.OOE-03 0.011 0.001 0.000 0.000 1.00E+03 I .OOE-02 0.023 0.002 0.000 0.000 2.50E+03 2.50E-02 0.056 0.006 0.001 0.000 5.OOE+03 5.00E-02 0.113 0.011 0.001 0.000 I .OOE+04 1.OOE-01 0.225 0.023 0.002 0.000 2.50E+04 2.50E-01 0.563 0.056 0.006 0.001 5.00E+04 5.00E-01 1.125 0.113 0.011 0.001 7.50E+04 7.50E-01 1.688 0.169 0.017 0.002 1.00E+05 1.OOE+00 2.250 0.225 0.023 0.002 1.50E+05 1.50E+00 3.375 0.338 0.034 0.003 2.00E+05 2.00E+00 4.500 0.450 0.045 0.005 2.50E+05 2.50E1+00 5.625 0.563 0.056 0.006 3.00E+05 3.00E+00 6.750 0.675 0.068 0.007 4.00E+05 4.00E+00 9.000 0.900 0.090 0.009 5.00E+05 5.00E+00 11.250 1.125 0.113 0.011 7.50E+05 7.50E+00 16.875 1.688 0.169 0.017 1.00E+06 1.OOE+01 22.500 2.250 0.225 0.023 2.00E+06 2.00E+01 45.000 4.500 0.450 0.045 3.00E+06 3.00E+01 rg67:500>, A> 6.750 0.675 0.068 5.00E+06 5.00E+01 t~U12t,0Q-4, 11.250 1.125 0.113 7.50E+06 7.50E+01l t 8*750j*' 16.875 1.688 0.169 1.OOE+07 .OOE+02 25.000 22.500 2.250 0.225 2.00E+07 2.00E+02 f :#*5.,000.°'* 45.000 4.500 0.450 4.OOE+07 4.00E+02 .00.0001, A 90.000 , 9.000 0.900 6.OOE+07 6.OOE+02 - '.1350.000 '135.000 , 13.500 1.350 8.OOE+07 8.OOE+02 1800.000 - J80.000 18.000 1.800 11.OOE+08 1.00E+03 :2250.000 ,.-225.000O, -' 22.500 2.250 2.00E+08 2.00E+03 '4500.000 , i/450.000!P' 45.000 4.500 Legend: < 1 DAC

> I DAC and < 50 DAC (PF Neg. Press. Resp./PAPR = 50)

> 50 DAC and < 1000 DAC (PF Airline/Hood = 1000)

> 1000 DAC and < 10000 DAC (PF SCBA = 10000)

> 10000 DAC (>PF of Resp. Protection; Special Considerations) i -

Page 8 of 13 INFORMATION USE

POINT BEACH NUCLEAR PLANT HPIP 4.40 HEALTH PHYSICS IMPLEMENTING PROCEDURES Revision 0 February 6, 2002 TEDE ALARA EVALUATION TABLE 4 Grinding/Welding (aggressive mechanical disturbance)

Potential Beta/Gamma Airborne Hazard as a Function of Working Enironment Loose Surface Contamination (LSC) Effective DAC Fraction (dpm/100 sq. cm.) (mrad/h) Confined Area Normal Vent Neg. Flow Glovebox 1.OOE+02 I1.OOE-03 0.225 0.023 0.002 0.000 2.50E+02 2.50E-03 0.563 0.056 0.006 0.001 5.OOE+02 5.00E-03 1.125 0.113 0.011 0.001 I1.OOE+03 I.OOE-02 2.250 0.225 0.023 0.002 2.50E+03 2.50E-02 5.625 0.563 0.056 0.006 5.00E+03 5.00E-02 11.250 1.125 0.113 0.011 I.OOE+04 I.00E-0 22.500 2.250 0.225 0.023 2.50E+04 2.50E-0 1 56.250: 'A, 5.625 0.563 0.056 5.00E+04 5.00E-01 . 12. 500'. 11.250 1.125 0.113 7.50E+04 7.50E-01 -168.750?:... 16.875 1.688 0.169 I.00E+05 I.00OE+00  :,25 22.500 2.250 0.225 1.50OE+05 1.50E3+00 33.750 3.375 0.338 2.00E+05 2.00E+00 .i

- - 45.000 4.500 0.450 2.50E+05 2.50E+00 i456230 X p 56 25QA': 5.625 0.563 3.00E+05 3.00E+00 IL-67550ttivA T 6.750 0.675 4.00E+05 4.00E+00 94900'QQ0,'7' 90000i t 9.000 0.900 5.00E+05 5.00E3+00 1125 '...112.500.' 11.250

. 1.125 7.50E+05 7.50E+00 -'1687.5 . -168350Qt23`iI 16.875 1.688 1.OOE+06 1.00E+01 - 2250":  ;. 225:000k-Kt. 22.500 2.250 2.00E+06 2.00E+01 4500' .: 450:J 45.000 4.500 3.00E+06 3.OOE+01  :.6750 '. '675:000'f- -67;500,,*;2, 6.750 5.OOE+06 5.OOE+01 12Sjaii . 1125' - 1I2e5O0dg 11.250 7.50E+06 7.501E+01 6~~5~ 1687.5 ' ~1.7 1.OOE+07 I.00E+02 .  % - 2250 . ' 225;000,. 22.500 2.00E+07 2.00E+02 - 4500 . . 450.000t,

'00090 45.000 4.00E+07 4.00E+02 ^,,90000  :,-  ;: 9000 - ' -: ^900.000Et 2Tv90000.oo-6.00E+07 6.00E+02 .. 3500 jJ 1350  : 35.00!-..,

1/2.4135000$¢ 8.00E+07 8.00E+02 x180000,;.:; "-180009>-- 1800 _1 8 0.0001._._,

I.OOE+08 1.OOE+03 ,,-,y-225000;t. rj 22500,;. 2250 .; f225.000js 2.00E+08 2.OOE+03 -'450000'"z, ^i' 45000 T.. 4500 - 450.000 S.

Legend: < I DAC

> I DAC and < 50 DAC (PF Neg. Press. Resp./PAPR = 50)

-. - '), , I.,-4,  ;-.-, .1-

"". , -!. . , > 50 DAC and < 1000 DAC (PF Airline/Hood = 1000)

> 1000 DAC and < I0000 DAC (PF SCBA = 10000)

> 10000 DAC (>PF of Resp. Protection; Special Considerations)

Page 9 of 13 INFORMATION USE

POINT BEACH NUCLEAR PLANT HPIP 4.40 HEALTH PHYSICS IMPLEMENTING PROCEDURES Revision 0 February 6, 2002 TEDE ALARA EVALUATION TABLES Inspection Only - No Ongoing Work (walk-thru and/or visual examination only)

Potential Alpha Airborne Hazard as a Function or Working Environment Loose Surface Contamination (LSC) Effective DAC Fraction (dpm/IOO sq. cm.) (mrad/h) Confined Area Normal Vent Neg. Flow Glovebox l.00E+02 L.OOE-03 0.015 0.002 0.000 0.000 2.50E+02 2.50E-03 0.038 0.004 0.000 0.000 5.OOE+02 5.OOE-03 0.075 0.008 0.001 0.000 1.OOE+03 L.OOE-02 0.150 0.015 0.002 0.000 2.50E+03 2.50E-02 0.375 0.038 0.004 0.000 5.OOE+03 5.OOE-02 0.750 0.075 0.008 0.001 1.OOE+04 L.OOE-01 1.500 0.150 0.015 0.002 2.50E+04 2.50E-01 3.750 0.375 0.038 0.004 5.OOE+04 5.OOE-01 7.500 0.750 0.075 0.008 7.50E+04 7.50E-01 11.25 1.125 0.113 0.011 1.00E+05 1.OOE+00 15 1.500 0.150 0.015 1.50E+05 1.50E+00 23 2.250 0.225 0.023 2.00E+05 2.OOE+00 30 3.000 0.300 0.030 2.50E+05 2.50E+00 38 3.750 0.375 0.038 3.OOE+05 3.OOE+00 45 4.500 0.450 0.045 4.00E+05 4.OOE+00 6.000 0.600 0.060 5.OOE+05 5.OOE+00 7.500 0.750 0.075 7.50E+05 7.50E+OO 11.25 1.125 0.113 1.00E+06 1.00E+01 _ _ 15 _ _ 1.500 0.150 2.00E+06 2.00E+01 30 3.000 0.300 3.OOE+06 3.OOE+01 Q45 4.500 0.450 5.OOE+06 5.OOE+01 , 7.500 0.750 7.50E+06 7.50E+01 1125:. -, iS~'I .}. 11.25 1.125 1.OOE+07 I.00E+02 - .1500 '-'- 15 1.500 2.OOE+07 2.OOE+02 ,3000 -*.300'. 1 $W: 30 3.3 4.00E+07 4.00E+02  : SSl60Qi~rs A60~, 666000 6.OOE+07 6.OOE+02 ' 9000 - ' .900 , $: '- .. 9QS . 9 8.OOE+07 8.OOE+02 120000 W§.' 1200 120Jii-i 12 l.OOE+08 1.00E+03 13000- 1500  : 8 '15 2.00E+08 2.00E+03 k;0000 iZ 3000 - - 300) -:1 30 Legend: < 1 DAC

> I DAC and < 50 DAC (PF Neg. Press. Resp./PAPR = 50)

> 50 DAC and < 1000 DAC (PF Airline/Hood = 1000)

> 1000 DAC and < I0000 DAC (PF SCBA = 10000)

--V. > 10000 DAC (>PF of Resp. Protection; Special Considerations)

Page IOof 13 INFORMATION USE

POINT BEACH NUCLEAR PLANT HPIP 4.40 HEALTH PHYSICS IMPLEMENTING PROCEDURES Revision 0 February 6, 2002 TEDE ALARA EVALUATION TABLE 6 Wet Decon/Routine Maintenance (wet surface wipedown, routine maintenance)

Potential Alpha Airborne Hazard as a Function of Working Environment Loose Surface Contamination (LSC) Effective DAC Fraction (dpm/100 sq. cm.) (mradlh) Confined Area Normal Vent Neg. Flow Glovebox 1.OOE+02 I.OOE-03 0.150 0.015 0.002 0.000 2.50E+02 2.50E-03 0.375 0.038 0.004 0.000 5.OOE+02 5.OOE-03 0.750 0.075 0.008 0.001 1.OOE+03 I.OOE-02 1.500 0.150 0.015 0.002 2.50E+03 2.50E-02 3.750 0.375 0.038 0.004 5.OOE+03 5.OOE-02 7.500 0.750 0.075 0.008 1.OOE+04 l.OOE-01 15 1.500 0.150 0.015 2.50E+04 2.50E-01 38 3.750 0.375 0.038 5.00E+04 5.00E-01 t:s~751;U- 7.500 0.750 0.075 7.50E+04 7.50E-01 13 11.25 1.125 0.113 l.00E+05 1.OOE+00 ____________ 15 1.500 0.150 l.50E+05 l.50E+OO W-259 W 23 2.250 0.225 2.00E+05 2.00E+OO ____MM 30 3.000 0.300 2.50E+05 2.50E+00 _____________ 38 3.750 0.375 3.OOE+05 3.OOE+00 8lIjI50 45 4.500 0.450 4.OOE+05 4.00E+00 " fi.y60 K; 6.000 0.600 5.OOE+05 5.OOE+00 Q50$X i 975I2 '> 7.500 0.750 7.50E+05 7.50E+00 - 1125 . r'j13w 11.25 1.125 1.00E+06 1.00E+0 -`i1500 '515ff< 15 1.500 2.00E+06 2.OOE+01 - 3000 - 30(f 30 3.000 3.00E+06 3.OOE+01 4500 ' t 45p- 9 45 4.500 5.00E+06 5.0oE+01 '7500 > :5iW:?. 7.500 7.50E+06 7.50E+01 #1tJJap 25Q 1125, ' 1i3.23 11.25 1.00E+07 l_.OOE+02

___-_.__ _ l ', '- 1500 'i.50.*i>pZ 15 2.00E+07 2.OOE+02 , 3000 ' 30 4.00E+07 4.00E+02 _ 600, 1607 0-

6.00E+07 6.00E+02 .00< it: 9000  ; 9 &y, 90 8.00E+07 8.00E+02 . MPi20, 1200Q 1,

-1200 120 1.00E+08 1.OOE+03 £0 it15000'4 0 < 1500 150 2.00E+08 2.00E+03 ' 0040 3000 C'

'300W

  • Legend: < I DAC

> I DAC and < 50 DAC (PF Neg. Press. Resp./PAPR = 50)

I -Ze n'.-. ". ,i f t- ,

> 50 DAC and < 1000 DAC (PF Airline/Hood = 1000)

> 1000DACand < 10000 DAC(PFSCBA = 10000)

> 10000 DAC (>PF of Resp. Protection; Special Considerations)

Page I I of 13 INFORMATION USE

POINT BEACH NUCLEAR PLANT HPIP 4.40 HEALTH PHYSICS IMPLEMENTING PROCEDURES Revision 0 February 6, 2002 TEDE ALARA EVALUATION TABLE 7 Abrasive or Dry Surface Decon (sweeping, scrubbing)

Potential Alpha Airborne Hazard as a Function of Working Environment Loose Surface Contamination (LSC) Effective DAC Fraction (dpm/100 sq. cm.) (mrad/lh) Confined Area Normal Vent Neg. Flow Glovebox 1.OOE+02 EOOE-03 1.500 0.150 0.015 0.002 2.50E+02 2.50E-03 3.750 0.375 0.038 0.004 5.OOE+02 5.OOE-03 7.500 0.750 0.075 0.008 1.OOE+03 EOOE-02 15 1.500 0.150 0.015 2.50E+03 2.50E-02 37 3.750 0.375 0.038 5.OOE+03 5.OOE-02  ; '75 4" 7 500 0.750 0.075 1.OOE+04 I.OOE-01  :?Is ^'150 15 1.500 0.150 2.50E+04 2.50E-01 38 3.750 0375 35375 5.OOE+04 5.OOE-.01 ' 750'4 ' '>;'.75>5 g I 7.500 0.750 7.50E+04 7.50E-01 ' 1125 J:Ž'113,A#2i 11.250 1.125 1.OOE+05 1.00E+00 -I;_1500-  ;. if 0 15 1.500 1.50E+05 1.50E+00  : -. 2250 t 25, *i 23 2.250 2.OOE+05 2.00E+00 3000 .- 900L-r t 30 3.000 2.50E+05 2.50E+00 . -3750 , 3J5 M, 38 3.750 3.OOE+05 3.00E+00 '. l4500 t.-%50 45 4.500 4.00E+05 4.00E+00 6000 . g  ;*

.i S Q60.AY> 6.000 5.OOE+05 5.00E+00  ;-7500 - 750k1 3.  :'~75C5< ; 7.500 7.50E+05 7.50E+00 1125,. 1 11.250 1.OOE+06 1.00E+01 :1500

-j.Q00t2' ;150),' 15 2.OOE+06 2.OOE+01 'Z;t sO0QO-' - 3000 ;2-}300 n&.§ 30 3.OOE+06 3.00E+01 .4500 .(45Q00.  :- 45 5.OOE+06 5.00E+01 *A 05-Q0' . 7500 - .75O,?$.si: ('.5J.:;,

7.50E+06 7.50E+01 :s5afgcotFXXi

-1125 --uzrr.gB~.,

ttS§ ........

1.OOE+07 1.00E+02 50000, 'i'1&000 ' - 1500 ' 50022t 2.OOE+07 2.00E+02 1 O00,000 -3P03000

' -300<.S-4.00E+07 4.00E+02 ' 00000i3.1x, ':6O3 ' 6000 '600 ,t, 6.OOE+07 6.00E+02 ' 00000P:K. 900 00' . l 9000 __________; __

8.OOE+07 8.OOE+02 1t200000

'120000!,. 12000Y.i j4i'.b 1200 1.00E+08 1.00E+03 ' 500000:+>iZ- 150000 A?~ 1500 2.00E+08 2.00E+03 j,.30Q00 '$3000'OO, . 3)Q M'. 3000 Legend: <1 DAC

> I DAC and < 50 DAC (PF Neg. Press. Resp./PAPR = 50)

r. , " . '- .;. ., r ' .' ,4 1;-' ' .' ' : . .- I.' . 4'-
t. , , -, -"IIi' >50 DAC and < 1000 DAC (PFAirline/Hood = 1000)

> IOOODAC and < I0000 DAC (PF SCBA= I0000)

> 10000 DAC (>PF of Resp. Protection; Special Considerations)

Page 12 of 13 INFORMATION USE

POINT BEACH NUCLEAR PLANT HPIP 4.40 HEALTH PHYSICS IMPLEMENTING PROCEDURES Revision 0 February 6, 2002 TEDE ALARA EVALUATION TABLE 8 Grinding/Welding (aggressive mechanical disturbance)

Potential Alpha Airborne Hazard as a Function of Working Environment Loose Surface Contamination (LSC) Effective DAC Fraction (dpm/100 sq. cm.) (mrad/h) Confined Area Normal Vent Neg. Flow Glovebox 1.00E+02 I .OOE-03 iJX:50 91 5 2 0 2.50E+02 2.50E-03 -Ž:375A.2s; 38 4 0 5.OOE+02 5.OOE-03 ;j'75O,.2 . 7 . 8 1 1.00E+03 l .OOE-02 1500 5 hO;-. - , .. 1500 2 2.5013+03 2.50E_

___750____38 2 1.0013+04 1.0023-01 K 150O.;'j'15 1500  : 15 2.50E+04 2.50E-01  :  : '375'; v 383750 5.OOE+04 5.OOE-01 41 - 7500 . £i 0,s750 " ' -75 ty 7.50E+04 7.50E-01 I 125 ->X1 00-1I.OOE+OS IE l - ;,5 1.50E+05 I.SOE+O" 2.00E+05 2.OOE+00 -3000.

2.50E+05 2.50E+00 IM250 3750 -

3.00E+05 3.00E+00 ,Q ) . 4500 4.OOE+05 4.00E+00 - S- 6000 --600. *-'-6()0.

5.00E+05 5.00E+OO w A.5QOO 7500 :

7.50E+05 7.50E2+00 z } 50t3 1125-1.00E+06 1.OOE+01 j05Q93MAN W915QD)00J  ; :- -1500 2.OOE+06 2.00E+01 A9IP0 A3Q09 ; 3000 M30XQ 3.00E+06 3.00E+01 t 45Q _0)W a' W45W)0Qf -l 50Q0 4500.-

5.00E+06 5.00E+01 50Qi 75-07 R 755X0. -7500 -

7.50E+06 7.50E+01 M1I5Q

.L100 "25AQ)OM K112509,0, 1.00E+07 1.00E+02 W1550w00OOJR fo 50 a0 u i00 -:150 'O 2.00E+07 2.00E+02 3000:

O'01 NW - -ooOO; 4.00E+07 4.00E+02 .* ;, 60000Q00Q)V4 t'6OO00014 0 k :60COOO  : 600009ke .

6.00E+07 6.00E+02 .N'-9..00o000'.2 900oO -900000' . 900000 s .o§,

8.00E+07 8.00E+02 -. 1 i 112000000f.!1 120000000WiW. t':j: 120000 5 1.00E+08 1.00E+03 EN 5000000QL 2 ;1500Q00TO -r,15 J ) : i)50000, -r 2.00E+08 2.OOE+03  ?; 30000000(O eF7 300000OO " '3000000% , ij.300000*..

Legend: I DAC

>I DAC and < 50 DAC (PF Neg. Press. Resp./PAPR = 50)

I - " 1- -,, -',.,

'Tt": - ",

- ..j , " > 50 DAC and < 1000 DAC (PF Airline/Hood = 1000)

> 000 DAC and< I0000 DAC (PFSCBA= 10000) 1.:,I V i -, , . " " -C4 > 10000 DAC (>PF of Resp. Protection; Special Considerations)

Page 13 of 13 INFORMATION USE

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