ML20215K686
| ML20215K686 | |
| Person / Time | |
|---|---|
| Site: | Hatch  |
| Issue date: | 05/01/1987 |
| From: | James O'Reilly GEORGIA POWER CO. |
| To: | NRC OFFICE OF ADMINISTRATION & RESOURCES MANAGEMENT (ARM) |
| Shared Package | |
| ML20215K689 | List: |
| References | |
| SL-2422, TAC-65244, TAC-65245, NUDOCS 8705110304 | |
| Download: ML20215K686 (9) | |
Text
n Georgia Power Cornpany
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' 333 Piednont Avenue Atfanta, Georgia 30308 Telephone 404 526 7851 s f 545 Atfanta, Georgia 30302 e
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Nuclear Operations SL-2422 1342C X7GJ17-H600 May 1, 1987 U. S. Nuclear Regulatory Commission ATTN: Document Control Desk Hashington, D. C.
20555 PLANT HATCH - UNITS 1, 2 NRC DOCKETS 50-321, 50-366 OPERATING LICENSES DPR-57, NPF-5 REQUEST TO REVISE TECHNICAL SPECIFICATIONS:
GASEOUS EFFLUENT RELEASE POINTS Gentlemen:
In accordance with the provisions of 10 CFR 50.90, as required by 10 CFR 50.59(c)(1), Georgia Power Company hereby proposes changes to the Plant Hatch Units I and 2 Technical Specifications, Appendix A to Operating Licenses DPR-57 and NPF-5.
The proposed changes would modify the Technical Specifications by adding additional monitored release points for gaseous effluents.
These release points would be used to augment existing ventilation systems on a temporary basis for temperature control and to reduce noble gas concentrations. provides a detailed description of the proposed changes and the basis for the changes. details the basis for our determination that the proposed changes do not involve a significant hazards consideration. provides page change instructions for incorporating the proposed changes into the Unit I and Unit 2 Technical Specifications.
The proposed changed Technical Specifications pages follow.
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U. S. Nuclear Regulatory Commission May 1, 1987 Page Two Payment of the filing fee in the amount of one hundred and fifty dollars is enclosed.
In order to allow time for procedure revision and orderly incorporation into copies of the Technical Specifications, we request that the proposed amendments, once approved by the NRC, be issued with an effective date to be no later than 60 days from the issuance of the amendment.
Pursuant to the requirements of 10 CFR 50.91, a copy of this letter and all applicable.cnclosures will be sent to Mr. J. L. Ledbetter of the Environmental Protection Division of the Georgia Department of Natural Resources.
Mr. James P.
O'Reilly states that he is Senior Vice President of Georgia Power Company and is authorized to execute this oath on behalf of Georgia Power Company, and that to the best of his knowledge and belief, the facts set forth in this letter and enclosures are true.
GEORGIA POWER COMPANY By:
o w a t O L9 b 1 James P. O'Reilly Sworn to and subscribed before me this 1 a of May 1987.
M YWAlb Notary Public mv na HjB/lc
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Enclosures:
1.
Basis for Proposed Change 2.
Significant Hazards Consideration 3.
Change Instructions 4.
Filing Fee - $150.00 c:
(see next page) 1342C
U. S. Nuclear Regulatory Commission
.May 1, 1987 Page Three c:
Georaia Power Company Mr. J. T. Beckham, Jr.
GO-NORMS U. S. Nuclear Reaulatory Commission. Washinaton Mr. L. P. Crocker, Licensing Project Manager - Hatch U. S. Nuclear Regulatory Commission. Reaion II
.Dr. J. N. Grace, Regional Administrator Mr. P. Holmes-Ray, Senior Resident Inspector - Hatch State of Georaia Mr. J. L. Ledbetter 4
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1342C i:
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ENCLOSURE 1 PLANT HATCH - UNITS 1, 2 NRC DOCKETS 50-321, 50-366 OPERATING LICENSES DPR-57, NPF-5 REQUEST TO REVISE TECHNICAL SPECIFICATIONS:
GASE0US EFFLUENT RELEASE POINTS BASIS FOR CHANGE RE00EST Backaround:
Plant Hatch has periodically experienced problems with temperature control and/or elevated (but not beyond regulatory limits) noble gas concentrations.
The first problem can cause accelerated worker fatigue and the second can cause excessive problems with contamination control.
Of the engineering options considered, augmenting existing ventilation systems through temporary monitored release points is the most effective solution to the combined problems.
In addition to improved temperature control, as noted above, the proposed change would provide for 'mproved control of noble gases.
Particular of these is Kr-88, which in turn decays to Rb-88.
Rubidium has a particular affinity for polyester material, which is popular in worker's clothing.
The Rb-88 is then detected as contamination when the workers exit the Radiation Control Area, resulting in an impact on productivity, and as a result, on schedules for work activities.
Procosed Changes:
The proposed changes to the Unit I and Unit 2 Technical Specifications would add a ' generic methodology to accommodate utilization of additional monitored gaseous effluent release points.
These additional release points could then be used periodically, on an as needed basis, to augment existing ventilation systems.
The wording of the proposed changes is generic so that it can be applied to all plant structures except for the reactor buildings.
The specific proposed changes are described below.
The proposed changes would add to Table 3.14.2-1 (Unit 1) and Table 3.3.6.10-1 (Unit 2)
Technical Specifications on Radioactive Gaseous Effluent Monitoring Instrumentation:
" Building Exhaust Monitor for Augmented Ventilation."
This radioactivity rate measurement would require a minimum of one operable channel during releases via that pathway.
Otherwise, ACTION STATEMENT 105 would apply.
Note that the channel is only required to be OPERABLE when releases are occurring via that pathway anA the equipment is installed.
Releases via that pathway without the monitoring equipment installed are not authorized.
If such a release were to occur, it would be treated as an unplanned, uncontrolled, 1342C El-1 5/1/87 SL-2422
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9 t
ENCLOSURE 1 REQUEST TO REVISE TECHNICAL SPECIFICATIONS:
GASE0US EFFLl!ENT RELEASE POINTS BASIS FOR CHANGE RE0UEST and unmonitored release to the environment.
The proposed - change would add to. Table 4.14.2-1_ (Unit 1) and Table 4.3.6.10-1 (Unit 2) Technical
' Specifications on Radioactive Gaseous Effluent Monitoring Instrumentation Surveillance Requirements: '" Building Exhaust Monitor for Augmented Ventilation."
This surveillance would require: ' daily channel checks, monthly. source
- checks, calibration every 18 months and quarterly functional test.
Note that the channel is only required to be OPERABLE when releases are occurring via that ~ pathway and the equipment is-
- installed.
The proposed changes would ' add -'to Table 4.14.2-1 (Unit - 1) and Table 4.3.6.10-1 (Unit 2) Technical Specifications on Radioactive Gaseous
, Effluent Monitoring Instrumentation Surveillance Requirements: " Building Exhaust Monitor for' Augmented Ventilation."
This ' surveillance would require: daily channel checks, monthly source checks, calibration every
~
18 months,. and quarterly functional test.
Note that the channel is only required.to be OPERABLE when releases are occurring via that pathway and the equipment is installed.
The proposed changes would add to Table 4.15.2-1 (Unit 1). and Table 4.11.2-1 (Unit 2) Technical Specifications on Radioactive Gaseous Haste Sampling and Analysis Program:
" Building Exhaust for Augmented l~
Ventilation."
This surveillance would require the same samples as currently exist 'for' the 'other Environmental Release Points.
Note that I
the sampling would only be required when releases are occurring via that pathway and the equipment is installed.
Changes to the Bases are also proposed to reflect the above items.
Basis for-Proposed Changes:
L The applicable regulatory criteria governing this subject are contained in 10 CFR 50 Appendix I, ' effluent release limits.
These dose based limits, stated simply, say that intentional release of gaseous effluents
' may occur as long.as the release pathway is monitored such that certain
' dose criteria are not exceeded. The proposed change would add additional
- release points for gaseous effluents while still maintaining releases t
within Appendix I limits as implemented by the ODCM.
When releases are being made, instrumentation will be installed and monitored to assure i.
that applicable limits are met.
The Limiting Conditions for Operation, Actions and Surveillance Requirements, consistent with those presently contained in the Technical Specifications for similar instrumentation,
~ 1342C El-2 5/1/87 SL-2422
S.
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ENCLOSURE 1 REQUEST TO REVISE TECHNICAL SPECIFICATIONS:
GASE0US EFFLUENT RELEASE POINTS BASIS FOR CHANGE REOUEST are proposed to assure that limits are met.
The radioactivity rate measurement instrumentation would be required to have a minimum of one operable channel during releases via that pathway otherwise ACTION STATEMENT 105 would apply.
The surveillances would require: daily channel checks, monthly source checks, calibration every 18 months, and quarterly functional test.
The surveillance would require the same samples as currently required for the other Environmental Release Points. The operability surveillances for the instrumentation would only be required while the equipment is installed and releases are being made via that pathway.
The instrumentation will be assigned a unique MPL number.
Calibration of the instrumentation will be performed in 11tu, i.e.,
in the installation where it is to be used; not calibrated in the shop and then installed without additional calibration.
The equipment will have continuous sampling capability for Iodine, principal gamma emitters, gross alpha, and Strontium.
It will also have local and/or remote alarm capability.
At least one alarm location for each additional release point will be at a constantly manned location, (e.g.,
an H.P.
control point), to enable termination of the release pathway on detection of elevated levels of gaseous effluent activity.
It is recognized that the proposed change may cause an increase in actual offsite releases, although still well within the limits of Appendix I.
The change in dose commitment is based on normal operations, not accident considerations.
It is estimated that dose commitment to a child thyroid, which is primarily through the iodine-grass-milk pathway, would typically be no more than 9% of the Appendix I annual limit.
Noble gas contributions to the public are estimated to also be small fractions of the annual Appendix I limits (typically approximately 4.5%). At the same
- time, the workers' dose will be lower.
The decreased dosage for radiation related, work is primarily the result of the reduced temperatures of the work environment, which means that the work can be performed more efficiently.
An additional benefit of the proposed change would be reduced heat stress due to improved temperature control.
This should result in higher productivi ty, and therefore improved work schedules.
When combined with the effect of reduced noble gas concentrations, the net result should be shorter, more efficient work activities and improved plant performance.
1342C El-3 5/1/87 SL-2422
ENCLOSURE 2 PLANT HATCH - UNITS 1 AND 2 NRC DOCKETS 50-321, 50-366 OPERATING LICENSE NOS. DPR-57, NPF-5 REQUEST TO REVISE TECHNICAL SPECIFICATIONS:
GASE0US EFFLUENT RELEASE POINTS 10 CFR 50.92 EVALUATION Pursuant to the requirements of 10 CFR 50.92, Georgia Power Company has evaluated the proposed amendments for Plant Hatch Units 1 and 2 and has determined that their adoption would not involve a significant hazards consideration.
The basis for this determination is as follows:
Prooosed Changes:
The proposed changes would add to Table 3.14.2-1 (Unit 1) and Table 3.3.6.10-1 (Unit 2) Technical S)ecifications on Radioactive Gaseous Effluent Monitoring Instrumentat4on:
" Building Exhaust Monitor for Augmented Ventilation."
This radioactivity rate measurement would require a minimum of one operable channel during releases via that pathway.
Otherwise, ACTION STATEMENT 105 would apply.
Note that the channel is only required to be OPERABLE when releases are occurring via that pathway and the equipment is installed.
Releases via that pathway without the monitoring equipment installed are not authorized.
If such a release were to occur, it would be treated as an unplanned, uncontrolled, and unmonitored release to the environment.
The proposed changes would add to Table 4.14.2-1 (Unit 1) and Table 4.3.6.10-1 (Unit 2) Technical Specifications on Radioactive Gaseous Effluent Monitoring Instrumentation Surveillance Requirements: " Building Exhaust Monitor for Augmented Ventilation."
This surveillance would require: daily channel checks, monthly source checks, calibration every 18 months, and quarterly functional test.
Note that the channel is only required to be OPERABLE when releases are occurring via that pathway and the equipment is installed.
The proposed chang'es would' add to Table 4.15.2-1 (Unit 1) and Table 4.11.2-1 (Unit 2) Technical Specifications on Radioactive Gaseous Haste Sampling and Analysis Program:
" Building Exhaust for Augmented Ventilation."
This surveillance would require the same samples as currently exist for the other Environmental Release Points.
Note that the sampling would only be required when releases are occurring via that pathway and the equipment is installed.
i Changes to the Bases to reflect the above items.
i 1342C E2-1 5/1/87 SL-2422
ENCLOSURE 2 REQUEST TO REVISE TECHNICAL SPECIFICATIONS:
GASEOUS EFFLUENT RELEASE POINTS 10 CFR 50.92 EVALUATION BA111:
The proposed change does not involve a significant increase in the probability or consequences of an accident because this change has no effect on the consequences of a postulated steam line break outside containment or a radwaste accident since the present analysis in the FSAR assumes that all releases are ground level and unfiltered.
The possibility of a different kind of accident from those analyzed previously is not created by these changes, since the design function of systems, as described in the FSAR, is not affected.
Margins of safety 'are not significantly reduced by the changes, because the applicable design basis accidents assume a ground level, unfiltered release.
The changes do not adversely affect this assumption because it only provides for additional, monitored release-pathways during normal operation.
1342C E2-2 5/1/87
'SL-2422
h ENCLOSURE 3 PLANT HATCH - UNITS 1 AND 2 NRC DOCKETS 50-321, 50-366 OPERATING LICENSE NOS. DPR-57, NPF-5 REQUEST TO REVISE TECHNICAL SPECIFICATIONS:
GASE0US EFFLUENT RELEASE POINTS PAGE CHANGE INSTRUCTIONS The proposed changes to the Technical Specifications (Appendix A to Operating License DPR-57 and NPF-5) would be incorporated as follows:
UNIT 1 Remove Pagg Insert Page 3.14-8 3.14-8 3.14-12 3.14-12 3.14-14 3.14-14
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3.15-10 3.15-10 1
3.15-23 3.15-23 I
UNIT 2 Remove Page Insert Pagg 3/4 3-60g 3/4 3-60g 3/4 3-60j 3/4 3-60j B 3/4 3-5 B 3/4 3-5 3/4 11-10 3/4 11-10 B 3/4 11-3 B 3/4 11-3 i
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1342C E3-1 5/1/87 SL-2422
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