ML18040A887
| ML18040A887 | |
| Person / Time | |
|---|---|
| Site: | Susquehanna  |
| Issue date: | 05/12/1988 |
| From: | Butler W Office of Nuclear Reactor Regulation |
| To: | |
| Shared Package | |
| ML18040A888 | List: |
| References | |
| NUDOCS 8805190040 | |
| Download: ML18040A887 (11) | |
Text
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UNITED STATES NUCLEAR REGULATORY COMMISSION PENNSYLVANIA POWER 8
LIGHT COMPANY POCKET NO. 50-388 ENVIRONMENTAL ASSESSMENT AND FINDING OF NO SIGNIFICANT IMPACT The U.
S. Nuclear Regulatory Commission (the Commission) is considering issuance of an amendment to Facility Operating License No. NPF-22, issued to Pennsylvania Power and Light Company, (the licensee),
for operation of the Susquehanna Steam Electric Station, Unit 2, located in Luzerne County, Pennsylvania.
ENVIRONMENTAL ASSESSMENT Identification of Pro osed Action:
The proposed amendment would revise the provisions in the Technical Specifications (TS) to support the Residual Heat Removal System (RHR) modifications intended to reduce the potential of waterhammer when RHR system is required to switchover from Suppression Pool Cooling (SPC) mode of operation to Low Pressure Coolant Iniection (LPCI) mode of operation.
The proposed action is in accordance with the licensee's application for amendment dated December 23,
- 1987, as supplemented by its letters dated March 11 and 24, 1988.
The Need for the Pro osed Action:
f The proposed change to the TS is required in order to permit the licensee to incorporate modifications to install RHR system bypass capability which would reduce the potential of waterhaomer when RHR system switches over from SPC mode to LPCI mode of operation.
Environmental Im acts of the Pro osed Action:
The Commission has completed its evaluation of the proposed revision to Technical Specifications.
The proposed modification will be made to install bypass lines across valves HV-25IF028 AKB.
These bypass flow paths will be used for normal suppression pool cooling.
The new piping will also include fast closing valves HV-25129 AAB, which will isolate upon RHR pump trip or LPCI initiation signal.
The closing time is selected to allow RHR piping to remain water filled, thereby reducing the potential of a waterhammer.
The modification wi 11 neither affect the present valves used for suppression pool cooling, nor will it adversely affect LPCI injection, since the new valves being installed close faster than the current valves.
Therefore, both RHR mode and LPCI mode of operation will be unaffected.
Therefore, the proposed changes do not increase the probability or consequences of accidents, no changes are being made in the types of any effluents that may be released offsite, and there is no significant increase in the allowable individual or cumulative occupational radiation exposure.
Accordingly, the Commission concludes that this proposed action would result in no significant radiological environmental impact.
Mith regard to potential non-radiological
- impacts, the proposed change to the TS involves systems located within the restricted area as defined in 10 CFR Part 20.
It does not affect non-radiological plant effluents and has no other environmental impact.
Therefore, the Commission concludes that there are no significant non-radiological environmental impacts associated with the proposed amendment.
The Notice of Consideration of Issuance of Amendment and Opportunity for Hearing in connection. with this action was published in the Federa1
~ge ister on March 11, 1988 (53 FR 7995).
No request for hearing or petition for leave to intervene was filed following this notice.
Alternative to the Pro osed Action:
Sirce the Commission concluded that there are no sianificant environmental effects that would result from the proposed action, any alternatives with equal or greater environmental impacts need not be evaluated.
The principal alternative would be to deny the requested amendment.
This would not reduce environmental impacts of plant operation and would result in reduced operational flexibility.
Alternative Use of Resources:
This action does not involve the use of any resources not previously considered in the Final Environmental Statement for the Susquehanna Steam Electric Station, Unit 1 and 2, dated June 1981.
A encies and Persons Consulted:
The NRC staff reviewed the licensee's request and did not consult other agencies or persons.
FINDING OF NO SIGNIFICANT IMPACT The Commission has determined not to prepare an environmental impact statement for the proposed license amendment.
Hased upon the foregoing environmental assessment, we conclude that the proposed action will not have a significant effect on the quality of the human environment.
4 For further details with respect to this action, see the application for amendment dated December 23, 1987 and supplements dated March 11 and 24, 1988 which are available for public inspection at the Commission's Public Document
- Room,
'717 H Street, N.W., Washington, D.C.
and at the Oster hout Free Library, Reference Department, 71 South Franklin Street, Wilkes-Barre, Pennsylvania 18701.
Dated at Rockville, Maryland, this 12th day of May 1988.
FOR THE NUCLEAR REGULATORY COMMISSION Walter Butler, Director Project Directorate I-2 Division of Reactor Projects I/II Office of Nuclear Reactor Regulation
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UNITED STATES NUCLEAR REGULATORY COMMISSION PENNSYLVANIA POWER It LIGHT COMPANY DOCKET NO. 50-388
-.ENVIRONMENTAL ASSESSMENT AND FINDING OF NO SIGNIFICANT IMPACT The U. S. Nuclear Regulatory Commission (the Commission) is considering issuance of an amendment to Facility Operating License No. NPF-22, issued to Pennsylvania Power and Light Company, (the licensee),
for operation of the Susquehanna Steam Electric Station, Unit 2, located in Luzerne County, Pennsylvania.
ENVIRONMENTAL ASSESSMENT Identification of Pro osed Action:
The proposed amendment would revise the provisions in the Technical Specifications (TS) to support the Residual Heat Removal System (RHR) modifications intended to reduce the potential of waterhammer when RHR system is required to switchover from Suppression Pool Cooling (SPC) mode of operation to Low Pressure Coolant Iniection (LPCI) mode of operation.
The proposed action is in accordance with the licensee's application for amendment dated December 23,
- 1987, as supplemented by its letters dated March ll and 24, 1988.
The Need for the Pro osed Action:
'he proposed change to the TS is required in order to permit the licensee to incorporate modifications to install RHR system bypass capability which would reduce the potential of waterhammer when RHR system switches over from SPC mode to LPCI mode of operation.
8805190040 5000388 880512 AopCK 0
~(>g Fo4~1 Environmental Im acts of the Pro osed Action:
The Commission,has completed its evaluation of the proposed revision to Technical Specifications.
The proposed modification will be made to install bypass lines across valves HV-251F028 A8B.
These bypass flow paths will be used for normal suppression pool cooling.
The new piping will also include fast closing valves HV-25129 ASB, which will isolate upon RHR pump trip or LPCI initiation signal.
The closing time is selected to allow RHR piping to remain water filled, thereby reducing the potential of a waterhammer The modification wi 11 neither affect the present valves used for suppression pool cooling, nor will it adversely affect LPCI injection, since the new valves being installed close faster than the current valves.
Therefore, both RHR mode and LPCI mode of operation will be unaffected.
Therefore, the proposed changes do not increase the probability or consequences of accidents, no changes are being made in the types of any effluents that may be released offsite, and there is no significant increase in the allowable individual or cumulative occupational radiation exposure.
Accordingly, the Commission concludes that this proposed action would result in no significant radiological environmental impact.
With regard to potential non-radiological
- impacts, the proposed change to the TS involves systems located within the restricted area as defined in 10 CFR Part 20. It does not affect non-radiological plant effluents and has no I
other environmental impact.
Therefore, the Commission concludes that there are no significant non-radiological environmental impacts associated with the proposed amendment.
The Notice of Consideration of Issuance of Amendment and Opportunity for Hearing in connection with this action was published in the Federai
~Re ister on March 11, 1988 (53 FR 7995).
No request for hearing or petition for leave to intervene was filed following this notice.
Alternative to the Pro osed Action:
Since the Commission concluded that there are no significant environmental effects that would result from the proposed action, any alternatives with equal or greater environmental impacts need not be evaluated.
The principal alternative would be to deny the requested amendment.
This would not reduce environmental impacts of plant operation and would result in reduced operational flexibility.
Alternative Use of Resources:
This action does not involve the use of any resources not previously considered in the Final Environmental Statement for tht, Susquehanna Steam Electric Station, Unit I and 2, dated June 1981.
A encies and Persons Consulted:
The NRC staff reviewed the licensee's request and did not consult other agencies or persons.
FINDING OF NO SIGNIFICANT IMPACT The Commission has determined not to prepare an environmental impact statement for the proposed license amendment.
Rased upon the foregoing environmental assessment, we conclude that the proposed action will not have a significant effect on the quality of the human environment.
J
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For further details with respect to this action, see the application for amendment dated December 23, 1987 and supplements dated March ll and 24, 1988 which are available for public inspection at the Commission's Public Document
- Room, 1717 H Street, N.W., Washington, D.C.
and at the Osterhout Free Library, Reference Department,'l South 'Franklin Street, Wilkes-Barre, Pennsylvania 18701.
Dated at Rockvi lie, Maryland, this 12th day of May 1988.
FOR THE NUCLEAR REGULATORY COMMISSION Walter Butler, Director Project Directorate I-2'ivision of Reactor Projects I/II Office of Nuclear Reactor Regulation
Docket File 50-,387/388 PDI-2 Reading MThadani/jfi'scher MO'Brien OOCKETNO. +
May 12. l988 Rules and Procedures Branch Division of Rules and Records Office of Administration FROM:
SUBJECT:
Office of Nuclear Reactor Regulation SUSQUEHANNA STEAM ELECTRIC STATION UNITS 1 AND 2 PENNSYLVANIA POMER AND LINT COMPANY One signed original of the Federal Register Notice identifled below is enclosed for your transmittal to the Office of the Federal Register for publication. Additional conformed copies (
5
) of the Notice are enclosed for your use.
Notice of Receipt of Application for Construction Permit(s) and Operating License(s).
Notice of Receipt of Partial Application for Construction Permit(s) and Facility License(s): Time for Submission of Views on Antitrust Matters.
Notice of ConsideratIon of Issuance of Amendment to Facility Operating License.
Notice of Receipt of Application for Facility License(s); Notice of Availability of Applicant's Environmental Report; and Notice of Consideration of Issuance of Facility License(s) and Notice of Opportunity for Hearing.
Notice of Availabilityof NRC Draft/Final Environmental Statement.
Notice of Limited Work Authoriiation.
Notice of Availabilityof Safety Evaluation Report.
Notice of Issuance of Construction Permit(s).
Noticeof Issuanceof FacllityOperatlng License(s)orAmendment(s). '-
Order.
Exemption.
Notice of Granting Exemption.
K Environmental Assessment.
Notice of Preparation of Environmental Assessment.'theh Office of Nuclear Reactor Regulation
Enclosure:
As stated contact: M 0 Bl'ken Phone:
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."5 88 Rc FORM 31e 110/eo> NRCM 0240 OffIClAL RECORD COPY