ML17059C250
| ML17059C250 | |
| Person / Time | |
|---|---|
| Site: | Nine Mile Point  |
| Issue date: | 09/18/1998 |
| From: | Bajwa S NRC (Affiliation Not Assigned) |
| To: | |
| Shared Package | |
| ML17059C249 | List: |
| References | |
| NUDOCS 9809230190 | |
| Download: ML17059C250 (14) | |
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UNITED STATES NUCLEAR REGULATORY COMMISSION WASHINGTON, D.c. 2055&0001 NIAGARAMOHAWKPOWER CORPORATION DOCKET NO. 50-220 NINE MILE POINT NUCLEAR STATION UNIT 1 AMENDMENTTO FACILITYOPERATING LICENSE Amendment No. 163 License No. DPR-63
- 1. The Nuclear Regulatory'Commission (the Commission) has found that:
A.
The application for amendment by Niagara Mohawk Power Corporation (the licensee) dated July 16, 1998, as supplemented by letter dated September 3, 1998, complies with the standards and requirements of the Atomic Energy Act of 1954, as amended (the Act) and the Commission's rules and regulations set forth in 10 CFR Chapter 1; B.
The facilitywilloperate in conformity with the application, the provisions of the Act, and the rules and regulations of the Commission; C.
There is reasonable assurance (I) that the activities authorized by this amendment can be conducted without endangering the health and safety of the public, and (ii) that such activities willbe conducted in compliance with the Commission's regulations; D.
The issuance of this amendment will not be inimical to the common defense and security or to the health and safety of the public; and E.
The issuance of this amendment is in accordance with 10 CFR Part 51 of the Commission's regulations and all applicable requirements have been satisfied.
2.
Accordingly, the license is amended by changes to the Technical Specifications as indicated in the attachment to this license amendment, and paragraph 2.C.(2) of Facility Operating License No. NPF-69 is hereby amended to read as follows:
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(2)
Technical S ecifications and Environmental Protection Plan The Technical Specifications contained in Appendix A and the Environmental Protection Plan contained in Appendix B, both of which are attached hereto, as revised through Amendment No.163 are hereby incorporated into this license.
Niagara Mohawk Power Corporation shall operate the facility in accordance with the Technical Specifications and the Environmental Protection Plan.
3.
This license amendment is effective as of the date of its issuance to be implemented within 30 days.
FOR THE NUCLEAR REGULATORYCOMMISSION S. Singh Bajwa, Director'roject Directorate I-1 Division of Reactor Projects - I/II Office of Nuclear Reactor Regulation
Attachment:
Changes to the Technical Specifications Date of Issuance:
September 18, 1998
ATTACHMENTTO LICENSE AMENDMENTNO.1 6 3 TO FACILITYOPERATING LICENSE NO. DPR-63 DOCKET NO. 50-220 Replace the following page of the Appendix A Technical Specifications with the attached page.
Remove 96 97 98 Insert 96 97 97a (new) 98
LIMITINGCONDITION FOR OPERATION SURVEILLANCEREQUIREINENT.
3.2.3 LANT HEMI TRY 4.2.3 LANT HEMI TR Ii a ili Applies to the reactor coolant system chemical requirements.
Applies to the periodic testing requirements of the
. reactor coolant chemistry.
gljgg~iv:
QQQi~lv To assure the chemical purity of the reactor coolant water.
To determine the chemical purity of the reactor coolant water.
a.
The reactor coolant water shall not exceed the following limits for >24 hours with the coolant temperature a200 degrees F and reactor thermal power <10%, or a shutdown shall be initiated within 1 hour1.157407e-5 days <br />2.777778e-4 hours <br />1.653439e-6 weeks <br />3.805e-7 months <br /> and the reactor. shall be shutdown and reactor coolant temperature be reduced to (200.degrees F within 10 hours1.157407e-4 days <br />0.00278 hours <br />1.653439e-5 weeks <br />3.805e-6 months <br />.
Samples shall be taken and analyzed for conductivity, chloride and sulfate ion content daily. In addition, if the conductivity becomes abnormal (other.than short term spikes) as indicated by the continuous conductivity monitor, samples shall be taken and analyzed within 8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br />.
Conductivity Chloride ion Sulfate ion 1 pmho/cm 100 ppb 100 ppb When the continuous conductivity monitor is inoperable, a reactor coolant sample shall be taken and analyzed for conductivity, chloride and sulfate ion I content at least once per 8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br />.
AMENDMENTNO. iQE 163 96
LIIVllTINGCONDITION FOR OPERATION SURVEILLANCEREQUIREMENT b.
The reactor coolant water shall not exceed the following limits for >24 hours with reactor thermal power >10%, or a shutdown shall be initiated within 1 hour1.157407e-5 days <br />2.777778e-4 hours <br />1.653439e-6 weeks <br />3.805e-7 months <br /> and the reactor shall. be shutdown and reactor coolant temperature be reduced to <200 degrees F within 10 hours1.157407e-4 days <br />0.00278 hours <br />1.653439e-5 weeks <br />3.805e-6 months <br />.
Conductivity Chloride ion Sulfate ion 1 gnnho/cm 20 ppb 20 ppb c.
In no case shall the reactor coolant exceed the following limits at the specified conditions or, a shutdown shall be initiated within 1 hour1.157407e-5 days <br />2.777778e-4 hours <br />1.653439e-6 weeks <br />3.805e-7 months <br /> and the reactor shall be shutdown and reactor coofant temperature be reduced to <200 degrees F
within 10 hours1.157407e-4 days <br />0.00278 hours <br />1.653439e-5 weeks <br />3.805e-6 months <br />.
With reactor coolant temperature a 200 degrees F, the conductivity has a maximum limitof Symho/cm, or 2.
With reactor coolant temperature a 200 degrees F and reactor thermal power a 10%, the maximum limitof chloride or sulfate ion concentration is 200 ppb, or 3.
With reactor thermal power >10%, the maximum limit of chloride or sulfate ion concentration is 100 ppb.
AMENDMENTNO. gg 163 97
LIMITINGCONDITION FOR OPERATION d.
Ifthe continuous conductivity monitor is inoperable for more than seven days, a shutdown shall be initiated within 1 hour1.157407e-5 days <br />2.777778e-4 hours <br />1.653439e-6 weeks <br />3.805e-7 months <br /> and the reactor shall be shutdown and reactor coolant.
temperature be reduced to <200 degrees F
within 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br />.
SURVEILLANCEREQUIREINENT AMENDMENTNO. 163 97a
0 N
BASES FOR 3.2.3 AND 4.2.3 COOLANT CHEMISTRY ln its May 8, 1997 letter, the NRC required that NMPC submit an application for amendment to address the differences between the current TS conductivity limits for reactor coolant chemistry and the analysis assumptions for the core shroud crack growth evaluations.
The purpose of this specification is to limitintergranular stress corrosion cracking (IGSCC) crack growth rates through the control of reactor coolant chemistry.
The LCO values ensure that transient conditions are acted on to restore reactor coolant chemistry values to normal in a reasonable time frame.
Under transient conditions, potential crack growth rates could exceed analytical assumptions, however, the duration will be limited so that any effect on potential crack growth is minimized and the design basis assumptions are maintained.
The plant is normally operated such that the average coolant chemistry for the operating cycle is maintained at the conservative values of < 0.19 pmho/cm for conductivity and < 5 ppb for chloride ions and < 5 ppb for sulfate ions. This willensure that the crack growth rate is bounded by the core shroud analysis assumptions.
Since these are average values, there are no specific LCO actions to be taken if these values are exceeded at a specific point in time. The EPRI "BWR Water Chemistry Guidelines-1996 Revision" (EPRI TR-103515-R1, BWRVIP-
~
- 29) action level 1 guidelines suggest that if conductivity is above 0.3 pS/cm, or chloride or sulfate ions exceed 5 ppb, that corrective a~n be initiated as soon as possible and to restore levels below level 1 within 96 hours0.00111 days <br />0.0267 hours <br />1.587302e-4 weeks <br />3.6528e-5 months <br />.
If the parameters are not reduced to below these l~s within 96 hours0.00111 days <br />0.0267 hours <br />1.587302e-4 weeks <br />3.6528e-5 months <br />, complete a review and implement a program and schedule for implementing corrective measures.
Specifications 3.2.3a, b, and c are consistent with NMPC's commitment to Table 4 4 of the BWR water chemistry guidelines.
The 24 hour2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> action time period for exceeding the coolant chemistry limits described in 3.2.3a and b ensures that prompt action is taken to restore coolant chemistry to normal operating levels. The requirement to commence a shutdown within 1 hour1.157407e-5 days <br />2.777778e-4 hours <br />1.653439e-6 weeks <br />3.805e-7 months <br />, and to be shutdown and reactor coolant temperature be reduced to < 200 degrees F within 10 hours1.157407e-4 days <br />0.00278 hours <br />1.653439e-5 weeks <br />3.805e-6 months <br /> minimizes the potential for IGSCC crack growth.
Reactor water samples are analyzed daily to ensure that reactor water quality remains within the BWR water chemistry guidelines.
These samples are analyzed and compared to action level 1 values.
The conductivity of the reactor coolant is continuously monitored.
The continuous conductivity monitor is visually checked shiftly in accordance with procedures.
The monitor alarms at the local panel.
The recorder, which is located in the Control Room, alarms in the Control Room.
The samples of the coolant which are analyzed for conductivity daily'illserve as a comparison with the continuous conductivity monitor. The primary sample point for the reactor water conductivity samples is the non-regenerative heat exchanger in the reactor water cleanup system.
An alternate sample point is the ¹11 recirculation loop. The reactor coolant samples willalso be used to determine the chloride and sulfate concentrations.
Therefore, the sampling frequency is considered adequate to detect long-term changes in the chloride and sulfate ion content.
However, ifthe conductivity becomes abnormal (> 0.19 pmho/cm), other than short term spik~
chloride and sulfate measurements will be made within 8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br /> to assure that the normal limits (< 5 ppb of chloride or sulfate ions) are~
maintained.
A short term spike is defined as a rise in conductivity (> 0.19 pmho/cm) such as that which could arise from injection of additional feedwater flow for a duration of approximately 30 minutes in time. These actions'will minimize the potential for IGSCC crack growth.
AMENDMENTNO. Qf 163 98