ML20129E821

Provides Fourteen Day Notification Prior to Implementing Addl Minor Decommissioning Activities at Plant

ML20129E821
Person / Time
Site:	Yankee Rowe
Issue date:	09/30/1996
From:	Mellor R YANKEE ATOMIC ELECTRIC CO.
To:	Fairtile M NRC (Affiliation Not Assigned), NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
BYR-96-048, BYR-96-48, NUDOCS 9610030298
Download: ML20129E821 (6)

Text

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. YANKEE ATOMICELECTRIC COMPANY "'C"No".gfo7e*;"l" IN 580 Main Street, Bolton, Massachusetts 01740-1398

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'm r ~DE September 30,1996 BYR 96 - 048 l

U.S. Nuclear Regulatory Commission Document Control Desk Washington, D.C. 20555 i l

Attention: Mr. Morton B. Fairtile Senior Project Manager Non-Power Reactors and Decommissioning Project Directorate Division of Operating Reactors

References:

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

(b) USNRC Letter to YAEC, dated May 31,1996 (c) Director's Decisions DD-96-01 and DD-96-02 i (d) CLI-96-06, dated April 1,1996 (e) USNRC Letter to J. Block, dated February 22,1996 (f) Letters, K. Jaffe, Swindler & Berlin to L. Cashell, Federal Energy Regulatory Commission, Docket No. ER95-835-000, dated December 29,1995

Subject:

Pre-Notification of New Planned Activities

Dear Mr. Fairtile,

In accordance with Reference (d), this letter provides fourteen day notification prior to implementing additional minor decommissioning activities at YNPS. The scope of these activities, described in Er .:losure A, was developed to maintain the trained and experienced staff engaged in decommissioning activities at Yankee without performing any major decomnussioning activities. Yankee's staff has developed significant expertise in decommissioning, achieving an impressive radiological and occupational safety record including i greater than 750,000 hours0 days <br />0 hours <br />0 weeks <br />0 months <br /> without a lost time accident. Regrettably, Yankee has already experienced a reduction of trained and experienced staff as a result of the completion of many of the previously noticed minor decommissioning activities. Regardless of further legal proceedings in this matter, proceeding with these minor activities is necessary to avoid a further reduction in staff and the attendant consequences.

Yankee has determined that the activities described in Enclosure A are " minor" i

decommissioning activities, consistent with established criteria, and do not foreclose the ability to place the remainin'g plant into a safe storage (i.e., SAFSTOR) condition. Furthermore, these activities are bounded by the types of activities previously considered permissible by NRC under a Possession-Only License (POL) prior to decommissioning plan approval [see Reference (e)

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c U.S. Nuclear Regulatory Commission Page 2 describing activities conducted at Fort St. Vrain and Shoreham]. These activities do not constitute major decommissioning activities since removal and/or implementation collectively represent a very small fraction of the remaining estimated occupational exposure. Enclosure A contains information previously requested by the NRC staff regarding the estimated curies to be removed, estimated occupational exposure, and cost.

None of the equipment or material being removed is required to support safe storage of spent fuel, future dismantlemen', or safe storage of those portions of the facility which remain. These activities also do not increase the costs of decommissioning as these costs are already accounted for in the decommissioning cost estimate as filed and settled by FERC and collected in accordance with the FERC settlement [ Reference (f)]. l Should you have any questions regarding this information, please contact us.

Sincerely, YANKEE ATOMI ELECTRIC COMPANY g k. =

Russe t . Mellor Decommissioning Manager and i Manager of Operations cc: USNRC Document Control Desk Mort Fairtile, NRR J. White, NRC Region I I

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l Attachment A- Description of Planned Activities I 1

l The following provides descriptions of activities expected to commence between October 15,  !

1996 and November 15,1996:  !

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1. Removal ofMotor Control Center (MCC) 4 l i

This activity is bounded by the types of activities previously stated as permissible by NRC under a POL prior to decommissioning plan approval (see Reference (e) describing activities ,

conducted at Fort St. Vrain and Shoreham). This activity does not constitute a major decommissioning activity since the removal involves only a small portion of the dose required to  !

complete decommissioning. The total estimated dose associated with this activity is approximately 0.1 person-rem. The quantity of radioactivity has been estimated at less than 0.000002 Ci.

This activity removes a de-energized motor control center, MCC 4, located in the Primary Auxiliary Building (PAB), and includes the necessary electrical determinations and removal of associated electrical cable and conduit. MCC-4 was de-energized during the installation of the i construction grade power system and is not required to suppeti spent fuel pool cooling operation, l l

This activity does not increase the costs of decommissioning as its cost is already accounted )

for in the decommissioning cost estimate as filed and settled by FERC and collected m '

accordance with the FERC settlement (Reference (f)). j l

Anticipated start date: October 15,1996. l l

2. Removal ofAsbestos Insulation in the RCA This activity is bounded by the types of activities previously stated as permissible by NRC

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under a POL prior to decommissioning plan approval (see Reference (e) describing activities conducted at Fort St. Vrain and Shoreham). This activity involves removal of asbestos insulation from the waste evaporator, certain building heating lines, and other miscellaneous equipment.

This activity does not constitute a major decommissioning activity since the removal involves ,

only a small portion of the dose required to complete decommissioning. The total estimated dose l associated with this activity is approximately 3 person-rem. The amount of radioactivity has j been estimated at less than 0.02 Ci.  !

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O Attachment A - Description of Planned Activities (continued)

This activity does not increase the costs of decommissioning as its cost is already accounted for in the decommissioning cost estimate as filed and settled by FERC and collected in accordance with the FERC settlement (Reference (f)).

Anticipated start date: October 15,1996.

3. RemovalofMiscellaneous PAB Comvonents i

This activity is bounded by the types of activities previously stated as permissible by NRC under a POL prior to decommissioning plan approval (see Reference (e) describing activities  :

conducted at Fort St. Vrain and Shoreham). This activity invalves removal of miscellaneous small bore piping, electrical equipment, cable and conduit,:niscellaneous steel, instrumentation, concrete block and concrete decontamination. This activit) does not constitute a major.

decommissioning activity since the removal involves only a small portion of the dose required to complete decommissioning. The total estimated dose associated with this activity is approximately 2 person-rem. The amount of radioactivity has been estimated at approximately 1.3 curies.

This activity does not increase the costs of decommissioning as its cost is already accounted for in the decommissioning cost estimate as filed and settled by FERC and collected in ,

accordance with the FERC settlement (Reference (f)).

Anticipated start date: October 15,1996.

4. Removal ofMiscellaneous Waste Disposal Building Components This activity is bounded by the types of activities previously stated as permissible by NRC under a POL prior to decommissioning plan approval (see Reference (e) describing activities conducted at Fort St. Vrain and Shoreham). This activity does not constitute a major decommissioning activity since the removal involves only a small portion of the dose required to l complete decommissioning. The total estimated dose associated with this activity is approximately 3 person-rem. The amount of radioactivity has been estimated at less than 0.3 Ci.

This activity involves removal of the obsolete evaporator and associated equipment, small bore piping, electrical equipment, cable and conduit, miscellaneous steel, instrumentation and concrete decontamination. This evaporator is redundant to the installed new temporary waste I evaporator and is not required to support operation of the spent fuel pool cooling system.

This activity does not increase the costs of decommissioning as its cost is already accounted CAMAnARUSS2.LTR A-2

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l Attachment A - Description of Planned Activities

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l for in the decommissioning cost estimate as filed and settled by FEPC and collected in accordance with the FERC settlement (Reference (f)).

l l Anticipated start date: November 4,1996. I

5. Removalofthe Waste Hold-up and Test Tanks This activity is bounded by the types of activities previously stated as permissible by NRC under a POL prior to decommissioning plan approval (see Reference (e) describing activities conducted at Fort St. Vrain and Shoreham). This activity does not constitute a major decommissioning activity since the removal involves only a small portion of the dose required to complete decommissioning. The total estimated dose associated with this activity is approximately one person-rem. The amount of radioactivity has been estimated at less than one curie. )

This activity involves removal of the obsolete waste hold-up tank and test tanks and concrete decontamination. These tanks are redundant to the installed new temporary waste 4 evaporator system and waste water storage tanks and are not required to support operation of the i spent fuel pool cooling system. j i This activity does not increase the costs of decommissioning as its cost is already accounted j l for in the decommissioning cost estimate as filed and settled by FERC and collected m  !

l accordance with the FERC settlement (Reference (f)).

l Anticipated start date: October 15,1996.

6. Decontamination of the Saferv iniection Buildine Concrete Surfatn l

This activity is a decontamination activity. Decontamination is a specifically allowed activity by the 1988 decommissioning rule (Statements of Consideration) and NRC letter i transmitting the YNPS POL. The interior building surfaces and structural steel will be decontaminated. Concrete encased drain lines which cannot be decontaminated and verified clean will be removed. Decontamination does not materially and demonstrably affect the methods or options available for decommissioning because decontamination does not preclude safe storage or dismantlement.

This activity involves removal of a very small quantity of radioactivity, estimated at less l than 0.001 curies. The total estimated dose associated with these activities is approximately 0.3

! person-rem.

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Attachment A-Description of Planned Activities '

(continued)

This activity does not increase the costs of decommissioning as its cost is already accounted l for in the decommissioning cost estimate as filed and settled by FERC and collected in accordance with the FERC settlement (Reference (f)).

Anticipated start date: November 4,1996 Summan* l l These activities are " minor" decommissioning activities, consistent with established criteria, and collectively represent a small fraction of the remaining estimated exposure for the L

decommissioning of the plant. The conduct of these activities has no impact on the ability of the

! remaining plant to achieve a SAFSTOR configuration should such an option be desired or required in the future for the remaining portion of the facility.

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i l Planned Activities l 1 i l

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l Activity Description Radioactivity Dose Cost (Ci) (person-rem) (S) l MCC 4 Removal MCC determinations, <0.000002 0.1 93,000 i MCC removal, cable / conduit I removal Primary Side Waste evaporator, <0.02 3 342,000 ACM Removal heating lines, & mise components i

PAB Clean out Remove misc small 1.3 2 301,000 J bore piping, electrical conduit & cable, miscellaneous steel, i concrete block, and instrumentation Waste Disposal Remove obsolete 0.3 3 205,000 Building Clean evaporator, small out bore piping, electrical cable and conduit, miscellaneous steel, I

concrete block, and instrumentation ,

i Waste llold-up Remove the obsolete <1 1 $186,000 Tank and Test waste hold-up tank Tank Removal and test tanks (2) and decontaminate the retaining moat walls Safety injection Decontaminate the <0.001 0.3 $125,000 ,

Building interior building,  !

Decontamination structural steel, and roof surfaces l

Total <2.6 9.4 $1,252,000 C:\ Mall \RUSS2.LTR A-5 l

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