ML112520047

Summary of Meeting with PSEG Nuclear LLC to Discuss Proposed License Amendment Regarding Reactor Coolant System Activity for Salem Nuclear Generating Station, Unit Nos. 1 and 2

ML112520047
Person / Time
Site:	Salem
Issue date:	09/19/2011
From:	Public Service Enterprise Group
To:	Division of Operating Reactor Licensing
Ennis R, NRR/DORL, 415-1420
Shared Package
ML112520029	List: ML112520047
References
LAR S11-02, TAC ME6895, TAC ME6896
Download: ML112520047 (6)

Text

LAR S11-02, Deletion of E Bar Definition and Revision to RCS Specific Activity Technical Specification Salem Units 1 and 2 Pre-Application Meeting September 8, 2011 Enclosure 2

Overview of Proposed Change

• Reactor Coolant System Specific Activity Replace the current Tech Spec limits on - Average Disintegration Energy with limits on noble gas activity.

The noble gas activity would be based on DOSE EQUIVALENT XE-133 and would take into account the noble gas activity in the primary coolant.

• License Li Amendment A d t Request R t (LAR) Submittal S b itt l Strategy St t The technical basis for the proposed change will be plant specific and consistent with the approach provided in TSTF 490, Rev. 1 However, PSEG does not plan to reference the TSTF in the LAR.

The LAR will maintain consistency with industry precedent.

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Current Licensing Basis TS Definitions 1.10 Dose Equivalent I-131 1.11 - Average Disintegration Energy Reactor Coolant System Specific Activity LCO 3.4.8 (S1) & LCO 3.4.9 (S2)

• Defines limits for specific activity of primary coolant to be:

- 1.0 Ci/gm DOSE EQUIVALENT I-131

>> Or less than the limit line as shown on Figure 3.4-1 for specific power levels

- 100 / Ci/gm

• Applicable in Modes 1, 2, 3, 4, and 5 SR 4.4.8 (S1) & SR 4.4.9 (S2)

• Provides Table 4.4-4 for sampling requirement frequencies to determine if the specific activity of the primary coolants is within allowable limits 3

Proposed Licensing Basis

• TS 1.10 (S1 & S2)

Minor text changes to explicitly identify the source for the dose conversion factors (DCFs) to be used to calculate Dose Equivalent I-131

• DCFs shall be the Thyroid Committed Dose Equivalent (CDE) inhalation dose conversion factors from Table 2.1 of Federal Guidance Report No. 11 (FGR-11), Limiting Values of Radionuclide Intake and Air Concentration and Dose Conversion Factors for Inhalation, Submersion, and Ingestion, 1988.

• TS 1.11 (S1 & S2)

Delete - Average Disintegration Energy definition and replace with definition for Dose Equivalent Xe-133

• DCFs shall be the air submersion Effective dose conversion factors from Table III.1 of Federal Guidance Report No. 12, (FGR-12) External Exposure to Radionuclides in Air, Water, and Soil, EPA, 1993.

• TS Figure 3.4-1 (S1 & S2)

Delete figure

• LCO 3.4.8 (S1) & LCO 3.4.9 (S2)

Revise text to remove reference to Figure 3.4-1, and to replace it with a DEI primary coolant specific activity level of 60 Ci/gm Replace 100/E Bar specific activity limit for primary coolant nuclides other than iodine with a dose equivalent Xe-133 specific activity limit of 601 Ci/gm Change applicability requirements to Modes 1, 2, 3, and 4

• SR 4.4.8 (S1) & SR 4.4.9 (S2)

Revised based on industry precedent 4

Effect on Safety

• Limits on specific activity of the reactor coolant ensure that the offsite and control room doses are appropriately limited during analyzed transients and accidents.

• This change will implement a LCO that is consistent with the whole body radiological consequence analyses which are sensitive to the noble gas activity in the primary coolant.

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Conclusion

• No significant hazards consideration No physical or plant operational changes Proposed change ensures consistency with assumptions in the safety analyses Proposed change will ensure the monitored values are b d d bby th bounded the iinitial iti l assumptions ti iin th the safety f t analyses l

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