ML20043D090
| ML20043D090 | |
| Person / Time | |
|---|---|
| Site: | Fort Calhoun  |
| Issue date: | 05/18/1990 |
| From: | Hebdon F Office of Nuclear Reactor Regulation |
| To: | |
| Shared Package | |
| ML20043D086 | List: |
| References | |
| NUDOCS 9006070118 | |
| Download: ML20043D090 (10) | |
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UNITED STATES NUCLEAR REGULATORY COMMISSION
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OMAHA PUBLIC POWER DISTRICT DOCKET NO. 50-285 EORT CALHOUN STATION. UNIT NO. 1 AMENDMENT TO FACILITY OPERATING LICENSE Amendment No.131 License No. DPR-40 1.
The Nuclear Rtgulatory Comis sion (the Comission) has found that:
A.
The application for amenohrd by the Omaha Public Power District (thelicensee)datedDecember 20, 1989 as suppleniented January 24, April 23, April 25 May 1, and May 9, 1990, complies with the standards and requirements of the Atomic Energy Act of 1954, as amended (the Act), and the Comission's rules and regulations set forth in 10 CFR Chapter it B.
The facility will operate in conformity with the application, as amended, the provisions of the Act, and the rules and regulations of the Commission; C.
There is reasonable assurance:
(1)thattheactivitiesauthorized i
by this anendment can be conducted without endangering the health and safety of the public, and (ii) that such activities will be conducted in con.pliance with the Comission's regulations; l
D.
The issuance of this license amendment will net be inimical tr the l
comon 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 Comission's regulations and all applicable requirements have l
been satisfied.
a l
i P
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l 2.-
Accordingly, facility Operating License No. DPR-40 is amended by changes to the Technical Specifications as indicated in the attachment to this
)
license amendment, and paragraph 3.B. of facility Operating License No.
1 DPR-40 is hereby amended to read as follows:
B.
M njcal Specifications t
The Technical Specifications contained in Appendix A, as i
revised through Amendment No.131, are hereby incorporated i
in the license. The licensee shall operate the facility in accordance with the Technical Specifications.
3.
The license amendment is effective as of its date of issuance.
FOR THE NUCLEAR REGULATORY COMMIS$10N h.hW Frederick J. Hb6 don, Director Project Directorate IV Division of Reactor Projects - !!!,
IV, V and Special Projects Office of Nuclear Reactor Regulation
Attachment:
Cheriges to the Technical Specifications Date of Issuance: May 18, 1990 m
ATTACHMENT TO LICENSE AMENDMENT NO.131 FACILITY OPERATING LICENSE NO. DPR-40 DOCKETNO.,}0-2 Revise Appendix "A" Technical Specifications as in';1cated below. The revised pages are identified by anendment number and con *,ein vertical lines indicating the area of change. Remove Pages Insert Pages viii viii 2-17 2-17 2-18 2-18 2-19 2-19 3-11 3-11 Figure 2-11 Figure 2-12 l i i l l 8 I i l \\ 1
l i TECHNICAL SPECIFICATIONS - FIGURES TABLE OF CONTENTS PA3? WHICH J E1EER[ DESCRIPTION FIGU E FOLLOWS 1-1 TMLP Safety Limits 4 Pump Operations.......... 1-3 12 Axial Power Distribution LS$$ for 4 Pump Operation... 1-3 l3 TMLP LSSS 4 Pump Operation............... 1-3 21A RCS Press-Temp Limits Heatup.............. 26 21B RCS Press Temp Limits Cooldown............. 2-6 23 Predicted Radiation Induced NDTT Shift......... 26 2-11 MIN BAST Level vs Stored BAST Concentration...... 2 19 l 2 12 Boric Acid Solubility in Water............. 2 19 l 2 10 Spent Fuel Pool Region 2 Storage Criteria....... 2-38 2 PDIL,-......................... 2 53 25 Allowable Peak Linear Heat Rate vs Burnup....... 2 53 t l 26 LCO for Excore Monitoring of LHR............ 2-53 s 27 LCO for DMB Monitoring................. 2-53 28 Flux Peaking Augmentation Factors........... 2-53 1 29 FTR'fX Y and Core Power Limitations.......... 2 53 1 s I l 1 viii Amendment No. JJE,J26,131 0 6 m
2.0 LIMITING CONDITIONS FOR OPERjd.l.QN l. 2.2 Chemical and Volume Control System Anolicability Applies to the operational status of the chemical and volume control system. Obiective To define those conditions of the chemical and volume control system necessary to assure safe reactor operation. Snecifications (1) When fuel is in the reactor and the reactor is suberitical, there l shall be at least one flow path to the core for boric acid injection. This flow path may be from the SIRW tank, with at least 10,000 gals, available at refueling boron concentration or from a BAST which meets the requirements of Figure 2 11 for a SIRW tank boron concentration at the technical specification limit. (2) The reactor shall not be made critical unless all the following minimum requirements are met: a. At least two charging pumps shall be operable, b. One boric acid transfer pump shall be operable, c. The minimum volume of borated water contained in the boric acid storage tank (s) (BAST) is dependent on the BAST and SIRW tank boron concentrations. The minimum required volume curve is shown in Figure 2 11. Depending on the flow paths available, this volume of borated water can be either the combined volume of the two BASTS, or can be contained in a specific BAST. The BAST is defined as the tank, gravity feed valve, pump and associated piping. The ambient temperature of the boric acid tank solution CH llA and CH llB shall meet the temperature requirements of Figure 2 12. d. System piping and valves shkil be operable such that one of the following four conditions will be satisfied. If piping or valves become inoperable and a condition change is required, six (6) hours are allowed when changing from one condition listed below to another condition listed below. In the event that the condition change cannot be completed within the six (6) hours allowed, the unit shall be placed in at least HOT SHUTDOWN within six (6) hours, in at least subcritical and <300'F within the next six (6) hours and in at least COLD SHUTDOWN within the following 30 hours unless corrective measures are completed. 2-17 Amendment No. 131 f 1
L 1 L L l 2.0 LIMITING C_0_NDITIONS FOR 0FfjMIj g 2.2 Chemical and Volume Controi System (Continued) dl. L. The required BAST volume of Figure 2-11 can be combined between CH IIA and CH llB when both tanks are operable. J d2. When LCV 218 3 is inoperable or the $1RW tank volume is below Technical Specification 2.2(1) minimum, then each BAST must be operable and contain the required volume of Figure 211 corresponding to the requirements of the SIRW tank Technical Specification boron concentration. d3. When BAST CH llB is inoperable, then BAST CH llA must be operable and contain the required volume of Figure 211 and LCV-218 3 must be operable. t d4. When BAST CH 11A is inoperable, then BAST CH llB must be operable and contain the required volume of Figure 211 and LCV-218-3 must be operable. Level instruments on the inservice BAST shall be operable. e. (3) Modification of Minimum Requirements t During power operation, the minimum requirements may be modified to allow any one of the following conditions to exist at any one time. If~the system is not restored to meet the minimum requirements within the time period specified, the reactor shall be placed in the hot shutdown condition in 4 hours and in the cold shutdown condition 4 -within an additional 48 hours. a. One of the operable charging pumps may be removed from service provided two charging pumps are operable within 24 hours. b. Both boric acid pumps may be out of service for 24 hours provided that both BASTS meet the requirements of Figure 2 11. One level instrument channel on each inservice concentrated boric c. acid tank may be out of service for 24 hours. d. One BAST may be removed from service for 72 hours provided that either of the conditions of 2.2(2)d3 or 2.2(2)d4 above is met. Allh The chemical and volume contro1gstem provides control of the reactor coolant system boron inventory. This is normally accomplished by using any one of. the three charging pumps in series with one of the two boric acid pumps..An alternate method of boration will be to use the charging pumps directly from the SIRW storage tank. A third method will be to depressurize and use the safety injection pumps. There are two sources of borated water available for injection through three different paths. Amendment No. f), JS),131 2-18 i i L - -. - -,,. - ~ ~ ~ - - + -
~ 2.0 LIMITING CONDIT10NS FOR OPERATION 2.2 Chemical and VoSume Control system (Continued) (1) The boric acid pumps can deliver the BAST contents (2.5-4.5 weight percent concentration of boric acid) to the charging pumps. The tanks are located above the charging pumps so that the boric acid will flow by gravity without being pumped. (2) The safety injection pumps can take suction from the $1RW tank which maintains a boric acid concentration greater than the required refueling concentration. (3) The charging pumps can take their suctions by gravity from either the boric acid tanks or the SIRW tank. Each concentrated boric acid tank containing 2.5 4,5 weight percent boric acid has sufficient boron to bring the plant to a cold shutdown condition. Boric acid pumps are each of sufficient capacity to feed all three charging i pumps at their maximum capacity. The concentrated boric teid storage tank is sized for 2.5-4.5 weight percent boric acid solution and is capable of storing solution up to 4.5 weight percent solution. All components of the system are capable of maintaining 4.5 weight percent solution. The elevation of the concentrated boric acid tank is sufficiently above the charging pump suction so as to provide adequate gravity flow to the charging pumps. Figure 2-12 contains a 10'F bias to account for temperature measurement uncertainty. An administrative procedure to monitor the temperature of the BASTS and boric acid system piping in the Auxiliary Building ensures that the temperature requirements of Figure 2 12 are met. Should the system L temperature be unacceptable for operation at the current boric acid j concentration, immediate steps will be taken to reduce the boric acid concentration or raise the temperature of the system such that the L l-concentration is within the acceptable range of Figure 2-12. The SIRW tank contents are sufficient to borate the reactor coolant in order to reach cold shutdown at any time during core life. The limits on component operability and the time periods for inoperability l were selected on the basis of the redundancy indicated above and engineering judgment. References (1) USAR, Section 9.2 l Amendment No.131 2 19 r i
i l 100 ^ 90 - 80 70 60 5 \\ s0 s y 40 N 3 N N \\ E 30 '\\ '\\ N Nh N 20 \\ %QN, N. 10 0 2.5 2.7 2.9 3.1 3.3 3.5 3.7 3.9 4.1 4.3 4.5 STORED BAST CONC (WT % BORIC ACID) 1 A 1800 PPM e 1900 PPM + 2000 PPM
- 2150 PPM
+ 2300 PPM IN SIRWT IN SIRWT IN SIRWT IN SIRM IN SIRWT FORT CALHOUN MIN BAST LEVEL OMAHA PUBUC POWER DISTRICT FIGURE vs STORED BAST CONCENTRATION FORT CALHOUN STATION UNIT 1 2 11 Amendment No.131
) 11 10 / 9 / g / NOT ACCEPTABLE / m / I 6 n / N 5 / 4 / ACCEPTABLE / 2 l 1 0 30 40 50 60 70 80 90 100 110 120 130 140 TEMPERATURE (DEGREES F) BORIC ACIO SOLUBluTY IN WATER OMAHA PUBLIC POWER DISTRICT FIGURE FORT CALHOUN STATION UNIT 1 2 12 Amendment No.131
A TABEE 3-2 (contirant) MINIMM FRBDUJNCIES ftR nar*S. Chi 2IEWI:1_OIS_MED amum 0F DIGINEDED_SAFEIT FEXItNES. 6_N NED OWIEDIE ~~ i camel _tjes_cr_lption s_urveillance nurtion 'iniguergy sLorveil1_ance Method 14. (continued) b. Calibrate R b. Known pr==ame and differential pressure agplied to pressure and level sensors. 15. Boric Acid Tank level a. deck D a. l ampere two independent sensors. i b. "Its'. R b. i nap tank below lone-level alata poir:t to verify switd cperation. c. Calibrate R c. Known differential pressure agplied to level At least three points in ladicator sensors. i range will be obtained-high, midfle-of-raruje, w i b 16. and low (near alaru set-point). i Boric Acid Tank T e ot.=ie a. Oeck D a. Irvlication Otserve tesperature devlees for sw -l tv.edings. l 17. Steam Generator low Pressure t a. Oeck S a. Signal (SGIS) Ocupare four 1rdspendent pressure it:11 cations. i kk { b. Test M(2) b. Sissilated signal. EA .a n-gi c. Calibrate R c. Fnown pressure agplied to sensors to verify ~ trip poirsts, logic operation, biedt j =oN permissive, auto reset and valve closures. hM i -g { i h \\ .}}