ML20205P667

Responds to NRC Re Violations Noted in Insp Rept 50-029/88-19.Corrective Actions:Instructions Will Be Provided for Cask Preparation Prior to Submersion,Methods of Decontamination & Determining Cask Leachability Rates

ML20205P667
Person / Time
Site:	Yankee Rowe
Issue date:	10/31/1988
From:	Drawbridge B YANKEE ATOMIC ELECTRIC CO.
To:	NRC OFFICE OF ADMINISTRATION & RESOURCES MANAGEMENT (ARM)
References
FYR-88-143, NUDOCS 8811080254
Download: ML20205P667 (2)

Text

- _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ . - -

4

• Tettphons 1617) 672-s100 TWh 710 380-7619 YANKEE ATOMIC ELECTRIC COMPANY 6

1671 Worcester Road, Frammgham, Me sachusotts 01701 fv-October 31, 1988 i FYR 88-143 United States Nuclear Regulatory Commission Document Control Desk Washington, DC 20555 <

References:

(a) License No. DPR-3 (Docket No. 50-29)

(b) USNRC Letter to Yankee, dated September 30, 1988 Subjecct Response to Inspection No. 50-29/88-19 In Reference (b), you requested that Yankee review the circumstances surrounding two August 1988 shipments of radioactive waste from t.s Yankee Nuclear Power Stetion to the burial site at Barnwell, South Carolina and review our procedures to ensure reguletory limits on contamination levels are not exceeded during transport. Based upon our review of the transport of the two submersible Type B shipping containers Yankee has implemented procedural changes which will strengthen the control of this process.

These procedural modifications require the contractor supplying the cask to providen 1

a. instructions for cask preparation prior to submersion which will minimize the contamination of the cask outer surfaces,

b. instructions which detail methods of cask decontamination including chemical and physical methods as well as acceptance criteria, and

c. a method of determining cask contamination leachability rates and an acceptance criteris established to ensure that external non-fixed radioactive contamination limits will not be exceeded during transportation.

Each of these instructions or methods will, when provided by the contractor, be submitted for review and approval recommendation by the Plant Operation Review Conm!ttee prior to implementation.

In addition, the burial contractor will be required to receive the shipments upon arrival within the time frames established in 10 CFR 20.205c and to notifyYankeewithintwohoursofthecomplejicnofthesurveys. Should the initial results exceed 15,000 dpm/100 cm on any extended external surface a =acar efficiency determination will be performed using guidance from Information Notice 85-46, "Clarification of Several Aspects of Removable Radioactive Surface Contamination Limits for Transport Ratings".

8811090254 881031 PDR ADOCK 05000029 I \

G PNU 1 I i

_ i

r s  ?%

a United States Nuclear Regulatory Commission October 31, 1988 Page 2 FYR 88-143 All procedure revisions have been completed and reviewed by the Plant Operations Review Committee. The contractor used to prepare the casks for shipment and bury the casks has been informed of these changes.

If you have any questions or require additional inforuation, please contact us.

Sincerely, -

YANKEE ATOMIC ELECT IC COMPANY f .

Bruce L. Drawbridg Vice President and Manager of Operations BLD/mts cc USNRC Region I USNRC, Resident Inspector YNPS l

l l

- - _ _ _ _ _ _ _ _ - - _ - _ _ _ - _ _ _ - - _ _ _ _ _ _ _ _ _ _ _ _ - _ _ _ _ - - _ ___-