ML20196H457

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Proposed Tech Specs 3/4.8.J, Safe Shutdown Makeup Pump, Reducing Current AOT from 67 Days to 14 Days
ML20196H457
Person / Time
Site: Quad Cities  Constellation icon.png
Issue date: 11/30/1998
From:
COMMONWEALTH EDISON CO.
To:
Shared Package
ML20196H454 List:
References
NUDOCS 9812090080
Download: ML20196H457 (6)
v • d • e


Text

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ATTACHMENT B

,' MARKED-UP PAGES FOR PROPOSED CIIANGES ~

SVP-98-355 Page1 of1 i

REVISED PAGES -

LICENSES DPR-29 and DPR-30 l

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l 3 /4.8-24 3/4.8-24 B 3/4.8-5 B 3/4.8-5 l

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9812090080 PDR 981130 f' P

ADOCK 05000254:

PDR t;

,' PLANT SYSTEMS SSMP 3/4.8.J 3.8 LIMITING CONDITIONS FOR OPERATION 4.8 - SURVEILLANCE REQUIREMENTS

l APPLICABILITY: 1. At least once per 31 days by:

OPERATIONAL MODE (s) 1,2 and 3 with a. Verifying that each valve, manual, reactor steam dome pressure greater than power operated or automatic in the  ;

150 psig. flow path that is not locked, sealed l or otherwise secured in position, is

! ACTION: in its correct position. -

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1. With the SSMP system inoper b. Verifying that the pump flow

! restore the inoperable S -

ystem to controller is in the correct position.

OPERABLE status withi [kfays, or be in at least HOT SHUTDO N within the 2. At least once per 92 days by verifying next 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br /> and in COLD that the SSMP develops a flow of l SHUTDOWN within the following 24 greater than or equal to 400 gpm l hours. against a system head corresponding to l raactor vessel pressure of greater than i 1120 psig. I

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QUAD CITIES - UNITS 1 & 2 Amendment Nos. 171 8 167 l 3/4.8 24 l

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PLANT SYSTEMS B 3/4.8 BASES i

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l header. The flow rate of the SSMP system is approximately equal to the reactor water boil-off rate 15 minutes after shutdown. l l

The SSMP system is re o be OPERABLE when either Unit 1 or Unit 2 is in OPERATIONAL i l MODE (s) 1, 2 or 3 actor steam dome pressure greater than 150 psig. With the SSMP I system inoperable, ay allowable out-of service (AOT) is provided to restore the inoperable  ;

system to OPERABL st tus before the Unit (s) must be shut down. '"r'r----- "- " r'--"r- l

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The surveillance requirements provide adequate assurance that the SSMP system will be OPERABLE when required. A design flow test can be performed during plant operation using a full l flow test return line to the CCST. (

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1 QUAD CITIES - UNITS 1 & 2 B 3/4.8-5 Amendment Nos. 171 & 167

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ATTACHMENT C l l

, SIGNIFICANT II AZARDS CONSIDERATION l SVP-98-355 Page 1 of 2

i l SIGNIFICANT IIAZARDS CONSIDERATION i

! i Comed has evaluated this proposed amendment and determined that it involves no significant

! hazards consideration. According to 10 CFR 50.92(c), a proposed amendment to an operating  !

license involves no significant hazards consideration if operation of the facility in accordance with the proposed amendment would not:

Involve a significant increase in the probability of occurrence or consequences of an accident  ;

previously evaluated; l

Create the possibility of a new or different kind of accident from any accident previously l evaluated; or j l

l Involve a significant reduction in a margin of safety.

Comed proposes to amend Appendix A, Technical Specification (TS), of Facility Operating Licenses DPR-29 and DPR-30. The proposed amendment requests a change to Technical Specification (TS) 3/4.8.J, Safe Shutdown Makeup Pump (SSMP), to reduce the current Allowed Outage Time (AOT) from 67 days to 14 days.

The determination that the criteria set forth in 10 CFR 50.92 are met for this amendment request is indicated below: ,

Does the change involve a significant increase in the probability or consequences of an accident previously evaluated?

The change does not involve a significant increase in the probability or consequences of an accident previously evaluated. The proposed change to the Technical Specification Allowed Outage Time is conservative with respect to current requirements. This change is being proposed to establish an AOT for the SSMP that is equivalent to that for the reactor core isolation cooling (RCIC) pump (14 day AOT) in order to enhance system performance by assuring maximum SSMP pump availability to a level consistent with RCIC. This is necessary since, pursuant to Paragraph III.G.3 of 10 CFR 50, Appendix R, the SSMP is an alternate system to the RCIC system. By ensuring equipment availability, the probability or consequences of an accident previously evaluated are not increased. In addition, the proposed change has no impact on any accident initiators or initial condition assumptions for accident scenarios. Onsite or offsite dose consequences resulting from an event previously l evaluated are not affected by this proposed amendment request.

} Therefore, this proposed amendment does not involve a significant increase in the probability or consequences of an accident previously evaluated.

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ATTACllMENT C

. SIGNIFICANT liAZARDS CONSIDERATION SVP-98-355 Page 2 of 2 Does the change create the possibility of a new or different kind of accident from any accident previously evaluated?

The proposed amendment does not create the possibility of a new or different kind of accident from any accident previously evaluated. The proposed license amendment provides ,

l a reduction to a Technical Specification Allowed Outage Time to enhance system performance by assuring maximum SSMP pump availability to a level consistent with RCIC.

The proposed change is conservative with respect to the current requirements. The proposed amendment does not involve any plant physical changes that would create the possibility of a

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new or different kind of accident from any accident previously evaluated.

Therefore, the proposed change does not create the possibility of a new or difTerent kind of accident from any accident previously evaluated.

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Does the change involve a significant reduction in a margin of safety?

The proposed change does not involve a significant reduction in a margin of safety. The i proposed change enhances system performance by assuring maximum SSMP pump availability to a level consistent with RCIC. Since this is a conservative change that will enhance the I performance of the SSMP system, it does not involve a significant reduction in the margin of safety.

Therefore, this change does not involve a significant reduction in a margin of safety.

Based on the above evaluation, Comed has concluded that these changes involve no significant hazards consideration.

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' ATTACHMENT D '

. ENVIRONMENTAL ASSESSMENT SVP-98-355 Page1of1 ENVIRONMENTAL ASSESSMENT Comed has evaluated this proposed operating license amendment request against the criteria for identification oflicensing and regulatory actions requiring environmental assessment in accordance with 10 CFR 51.21. Comed has determined that this proposed license amendment request meets the criteria for a categorical exclusion set forth in 10 CFR 51.22(c)(9) and as such, has determined that no irreversible consequences exist in accordance with 10 CFR 50.92(b). This determination is based on the fact that this change is being proposed as an amendment to a license issued pursuant to 10 CFR 50 that changes a requirement with respect to installation or use of a facility component located within the restricted area, as defined in 10 CFR 20, or that changes an inspection or a surveillance requirement, and the amendment meets the following specific criteria:

(i) the amendment involves no significant hazards consideration.

As demonstrated in Attachment C, this proposed amendment does not involve any significant hazards consideration.

(ii) there is no significant change in the types or significant increase in the amounts of any effluent that may be released offsite.

1 The proposed changes will not result in changes in the operation or configuration of l

the facility. There will be no change in the level of controls or methodology used for l processim; of radioactive ellluents or handling of solid radioactive waste. i (iii) there is no significant increase in individual or cumulative occupational radiation exposure. '

The proposed changes will not result in changes in the operation or configuration of l the facility. The proposed changes will not result in any change in the normal l radiation levels within the plant. Therefore, there will be no increase in individual or ,

cumulative occupational radiation exposure resulting from this change.

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