ML100740265

Attachment 3 Pre-Dive Checklist

ML100740265
Person / Time
Site:	Oyster Creek
Issue date:	05/19/2009
From:	- No Known Affiliation
To:	NRC Region 1
References
FOIA/PA-2009-0214, RP-AA-461, Rev 2
Download: ML100740265 (7)

Text

RP-AA-461 Revision 2 Page 20 of 23 ATTACHMENT 3 Pre-Dive Checklist Page 1 of 1 (USED FOR SUBSEQUENT DIVES AFTER CREW'S INITIAL BRIEF. MAY BE PERFORMED IN ANY ORDER)

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1. Complete a pre-job briefing (discussion to include dive area boundanes, dose rate information and task(s)).

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2.

Verify two underwater survey instruments are in calibration and source checked and are available.

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3. Verify water clarity and underwater lighting adequate.

4.

Verify dive site survey is performed (historical survey available for initial dive) and methodology by RP Supervision approved.

5. Verify dive suit is wet prior to diving.

6.

Verify diver's suit(s) is surveyed and meets the requirements of step 4.3.5

7.

Verify helmet dosimetry attached with wire/plastic ties, when applicable. Do not use material, such as plastic bags or tape, which could block diver's exhalation valve.

8.

Verify diver dosimetry in proper location (e.g., EDs, TLDs, Extremity, etc.).

9.

Verify remote dosimetry equipment is operational.

10. Verify two-way voice communications are available and operational.

11. Verify approved method of visual contact is available.

12. Verify survey instrumentation used by diver is operable.

13. Verify in-leakage test of diver suit has been performed.

14. Verify that breathing air is monitored.

15. Evaluate the need for vacuuming and shielding.

16. Ensure all prerequisites of RP-AA-461 are met prior to dive operations.

17. Discuss immediate actions for each the following: CO alarm, High Red alarm, CAM alarm, diver disorientation, diver signaled to leave, failure of underwater survey instrumentation, diver reaches pre-established dose limits, radiological aspects of dive can NOT be maintained or are suspect

18. Discuss when the dive operations shall be suspended as per step 4.4.7..

19. Verify with Diver Supervisor that Ops Shift Supervision has been notified prior to start of dive evolutions.

20. Ensure appropriate controls are in place for dive evolutions in a high dose rate gradient area.

21. Ensure water are within limits. (<95-F unless approved by Dive Supervisor and prior to notifiation to RP/Safety)

22. Discuss approved dose levels with divers.

23. When meeting the requirements of step 3.3.11, ensure a documented plan exists with the appropriate approvals when evaluating diver safety.

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RP) echnician~signed)

RP tuervsi~~eiw (signed) 6- /e' Da e

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RP-AA-461 Revision 2 Page 21 of 23 ATTACHMENT 4 Dive Checklist Page I of 1 (Used for subsequent dives after crew's initial brief. May be performed in any order)

PRE-DIVE CHECKLIST (COMPLETE BEFORE EACH DIVE)

Date:

Diver's Name:

RWP #

Approved Dose Level:,-

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mrem Current Exposure:

____mrem Maximum Stay Time:

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Minutes Dive Suit Survey Complete (including discrete radioactive particles).

Hose Off Diver Decon Diver's Suit / Post Decon Survey documented Electronic Dosimeter readings recorded Multiple Dosimetry TLDs stored Primary TLD retumed to diver I/Usiy 9 A-','liar*

'.,./A Exposure investigation required?

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RP Technician (signed)

Date Date RP Supervision Review (signed)

RP-AA-461 Revision 2 Page 22 of 23 ATTACHMENT 5 Diver Surveys In and Out of Water Page 1 of I If Discrete Radioactive Particle(s) <10 mtradhr. then RPT to survey diver suit approximately every 1 - 2 hr (based ov evolutions and work epvirorment), perform detailed w/o & w/c survey, attempt to decon and allow diver to return to water.

it Discrete Radioactive Particle >10 mrodlhr and <500 mrttdthr, then RPT to survey diver suit aproximateoly every 112 to, pedonr mdetailed sdrvey, collect particles and 8llow diver to return to water.

if Discrete Radioactive Particle >5G0 mrad/hr, then immediately remove diver from suit, perform detailed survey of uit, characterize particles and Initiate dose assessment.

RPTech ician (signed)

RP SuperviSion Review (signed)

Date Date

RP-AA-461 Revision 2 Page 23 of 23 ATTACHMENT 6 Diver-Performed Survey Verifications Page I of 1 DIVER'S NAME:

O DATE OF DIVE:

GENERAL DIVE LCATION:

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Date RP Sdpe'rTsion (signed)

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1. B#=P1 111 P Beta /30cm V-AIl dose rates In mrern/hr unless otherwise noted -

0 No Beta Detected Unless Otherwise Noted 0kNo Beta Readings Taken Remarks:'