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Category:MONTHLY OPERATING ANALYSIS REPORT
MONTHYEARML20217D5441999-09-30030 September 1999 Monthly Operating Rept for Sept 1999 for Davis-Besse Nuclear Power Station.With ML20211R0811999-08-31031 August 1999 Monthly Operating Rept for Aug 1999 for Davis-Besse Nuclear Power Station,Unit 1.With ML20210Q8541999-07-31031 July 1999 Monthly Operating Rept for July 1999 for Davis-Besse Nuclear Power Station,Unit 1.With ML20209E6231999-06-30030 June 1999 Monthly Operating Rept for June 1999 for Davis-Besse Nuclear Power Station,Unit 1.With ML20195F4871999-05-31031 May 1999 Monthly Operating Rept for May 1999 for Davis-Besse Nuclear Power Station,Unit 1.With ML20206M6341999-04-30030 April 1999 Monthly Operating Rept for Apr 1999 for Davis-Besse Nuclear Station,Unit 1.With ML20205M2931999-03-31031 March 1999 Monthly Operating Rept for Mar 1999 for Davis-Besse Nuclear Power Station.With ML20207J1461999-02-28028 February 1999 Monthly Operating Rept for Feb 1999 for Davis-Besse Nuclear Power Station,Unit 1.With ML20199E2501998-12-31031 December 1998 Monthly Operating Rept for Dec 1998 for Davis-Besse Nuclear Power Station,Unit 1.With ML20197J3441998-11-30030 November 1998 Monthly Operating Rept for Nov 1998 for Davis-Besse Nuclear Power Station,Unit 1.With ML20195D0001998-10-31031 October 1998 Monthly Operating Rept for Oct 1998 for Davis-Besse Nuclear Power Station,Unit 1.With ML20154H5801998-09-30030 September 1998 Monthly Operating Rept for Sept 1998 for Davis-Besse Nuclear Power Station,Unit 1.With ML20151W1611998-08-31031 August 1998 Monthly Operating Rept for Aug 1998 for Dbnps.With ML20237B1681998-07-31031 July 1998 Monthly Operating Rept for July 1998 for Davis-Besse Nuclear Power Station,Unit 1 ML20236N7451998-06-30030 June 1998 Monthly Operating Rept for June 1998 for Davis-Besse Nuclear Power Station,Unit 1 ML20249A4121998-05-31031 May 1998 Monthly Operating Rept for May 1998 for Davis-Besse Nuclear Power Station,Unit 1 ML20236N7501998-04-30030 April 1998 Rev 2 to Monthly Operating Rept for Apr 1998 for Davis-Besse Nuclear Power Station,Unit ML20247F6721998-04-30030 April 1998 Monthly Operating Rept for Apr 1998 for Davis-Bess Nuclear Power Station,Unit 1 ML20249A4141998-04-30030 April 1998 Revised Monthly Operating Rept for Apr 1998 for Davis-Besse Nuclear Power Station,Unit 1 ML20216B4041998-03-31031 March 1998 Monthly Operating Rept for Mar 1998 for Davis-Besse Nuclear Power Station,Unit 1 ML20216C5131998-02-28028 February 1998 Monthly Operating Rept for Feb 1998 for Davis-Besse Nuclear Power Station,Unit 1 ML20202D3721998-01-31031 January 1998 Monthly Operating Rept for Jan 1998 for Davis-Besse Nuclear Power Station,Unit 1 ML20198K7931997-12-31031 December 1997 Monthly Operating Rept for Dec 1997 for Davis-Besse Nuclear Power Station,Unit 1 ML20203A3931997-11-30030 November 1997 Monthly Operating Rept for Nov 1997 for Davis-Besse Nuclear Power Plant,Unit 1 ML20198S5371997-10-31031 October 1997 Monthly Operating Rept for Oct 1997 for Davis-Besse Nuclear Power Station ML20217H7701997-09-30030 September 1997 Monthly Operating Rept for Sept 1997 for Davis-Besse Nuclear Power Station,Unit 1 ML20216H3261997-08-31031 August 1997 Monthly Operating Rept for August 1997 for DBNPS ML20217K0241997-07-31031 July 1997 Monthly Operating Rept for Jul 1997 for Davis Besse Nuclear Power Station,Unit 1 ML20140H0441997-05-31031 May 1997 Monthly Operating Rept for May 1997 for Davis-Besse Nuclear Power Station Unit 1 ML20141B9521997-04-30030 April 1997 Monthly Operating Rept for Apr 1997 for Davis-Beese Nuclear Power Station Unit 1 ML20137T5271997-03-31031 March 1997 Monthly Operating Rept for Mar 1997 for Davis-Besse Nuclear Power Station,Unit 1 ML20136G7221997-02-28028 February 1997 Monthly Operating Rept for Feb 1997 for Davis-Besse Nuclear Station Unit 1 ML20134L9831997-01-31031 January 1997 Monthly Operating Rept for Jan 1997 for Dbnps,Unit 1. W/Undated Ltr ML20133G0161996-12-31031 December 1996 Monthly Operating Rept for Dec 1996 for Davis-Besse Nuclear Power Station,Unit 1 ML20149M4071996-11-30030 November 1996 Monthly Operating Rept for Nov 1996 for Davis-Besse Nuclear Power Station Unit 1 ML20134P9821996-10-31031 October 1996 Monthly Operating Rept for Oct 1996 for Davis-Besse Nuclear Power Station,Unit 1 ML20128Q0611996-09-30030 September 1996 Monthly Operating Rept for Sept 1996 for Davis-Besse NPP, Unit 1 ML20117D5341996-07-31031 July 1996 Monthly Operating Rept for July 1996 for Davis-Besse Nuclear Power Station,Unit 1 ML20117D5411996-06-30030 June 1996 Revised MOR for June 1996 for Davis-Besse Nuclear Power Station,Unit 1 ML20116E0161996-06-30030 June 1996 Monthly Operating Rept for June 1996 for Davis-Besse Nuclear Station Unit 1 ML20113B9111996-05-31031 May 1996 Monthly Operating Rept for May 1996 for Davis-Beese Nuclear Power Station Unit 1 ML20117H7231996-04-30030 April 1996 Monthly Operating Rept for Apr 1996 for Davis-Besse Unit 1 ML20112E6061996-03-31031 March 1996 Monthly Operating Rept for Mar 1996 for David-Besse Nuclear Power Station,Unit 1 ML20101G5251996-02-29029 February 1996 Monthly Operating Rept for Feb 1996 for DBNPS Unit 1 ML20149K7711996-01-31031 January 1996 Monthly Operating Rept for Jan 1996 for Davis-Besse Nuclear Power Station.W/Undated Ltr ML20096C7971995-12-31031 December 1995 Monthly Operating Rept for Dec 1995 for Davis-Besse Nuclear Power Station Unit 1 ML20095H3761995-11-30030 November 1995 Monthly Operating Rept for Nov 1995 for Davis-Besse Nuclear Power Station Unit 1 ML20094L1041995-10-31031 October 1995 Monthly Operating Rept for Oct 1995 for Davis-Besse Nuclear Power Station Unit 1 ML20093J2341995-09-30030 September 1995 Monthly Operating Rept for Sept 1995 for Davis-Besse Nuclear Power Station ML20098A2651995-08-31031 August 1995 Monthly Operating Rept for Aug 1995 for Davis-Besse Nuclear Power Station,Unit 1 1999-09-30
[Table view] Category:TEXT-SAFETY REPORT
MONTHYEARML20217K1231999-10-14014 October 1999 Revised Positions for DBNPS & Pnpp QA Program ML20217D5441999-09-30030 September 1999 Monthly Operating Rept for Sept 1999 for Davis-Besse Nuclear Power Station.With ML20211R0811999-08-31031 August 1999 Monthly Operating Rept for Aug 1999 for Davis-Besse Nuclear Power Station,Unit 1.With ML20211B0271999-08-13013 August 1999 SER Accepting Second 10-year Interval Inservice Insp Requests for Relief RR-A16,RR-A17 & RR-B9 for Plant, Unit 1 ML20210Q8541999-07-31031 July 1999 Monthly Operating Rept for July 1999 for Davis-Besse Nuclear Power Station,Unit 1.With ML20209E6231999-06-30030 June 1999 Monthly Operating Rept for June 1999 for Davis-Besse Nuclear Power Station,Unit 1.With ML20195K2871999-06-16016 June 1999 Safety Evaluation Accepting Licensee Response to GL 95-07, Pressure Locking & Thermal Binding of Safety-Related Power-Operated Gate Valves ML20195F4871999-05-31031 May 1999 Monthly Operating Rept for May 1999 for Davis-Besse Nuclear Power Station,Unit 1.With ML20207E8011999-05-19019 May 1999 Non-proprietary Rev 2 to HI-981933, Design & Licensing Rept DBNPS Unit 1 Cask Pit Rack Installation Project ML20207F4351999-05-0404 May 1999 Rev 1 to DBNPS Emergency Preparedness Evaluated Exercise Manual 990504 ML20206M6341999-04-30030 April 1999 Monthly Operating Rept for Apr 1999 for Davis-Besse Nuclear Station,Unit 1.With ML20205M2931999-03-31031 March 1999 Monthly Operating Rept for Mar 1999 for Davis-Besse Nuclear Power Station.With ML20207J1461999-02-28028 February 1999 Monthly Operating Rept for Feb 1999 for Davis-Besse Nuclear Power Station,Unit 1.With ML20199H5931999-01-20020 January 1999 Safety Evaluation Accepting Thermo-Lag Re Ampacity Derating Issues for Plant ML20204J6751998-12-31031 December 1998 1998 Annual Rept for Dbnps,Unit 1,PNPP,Unit 1 & BVPS Units 1 & 2 ML20199E2501998-12-31031 December 1998 Monthly Operating Rept for Dec 1998 for Davis-Besse Nuclear Power Station,Unit 1.With ML20206B0101998-12-31031 December 1998 1998 Annual Rept for Firstenergy Corp, for Perry Nuclear Power Plant & Davis-Besse Nuclear Power Station.Form 10-K Annual Rept to Us Securities & Exchange Commission for Fiscal Yr Ending 981231,encl ML20205K5781998-12-31031 December 1998 Waterhammer Phenomena in Containment Air Cooler Swss ML20197J3441998-11-30030 November 1998 Monthly Operating Rept for Nov 1998 for Davis-Besse Nuclear Power Station,Unit 1.With ML20195D0001998-10-31031 October 1998 Monthly Operating Rept for Oct 1998 for Davis-Besse Nuclear Power Station,Unit 1.With ML20155B6781998-10-28028 October 1998 Safety Evaluation Accepting Proposed Reduction in Commitment Changes in QA Program Matl Receipt Insp Process ML20154H5801998-09-30030 September 1998 Monthly Operating Rept for Sept 1998 for Davis-Besse Nuclear Power Station,Unit 1.With ML20151W1611998-08-31031 August 1998 Monthly Operating Rept for Aug 1998 for Dbnps.With ML20237E3171998-08-21021 August 1998 ISI Summary Rept of Eleventh Refueling Outage Activities for Davis-Besse Nuclear Power Station ML20237B1681998-07-31031 July 1998 Monthly Operating Rept for July 1998 for Davis-Besse Nuclear Power Station,Unit 1 ML20236U5011998-07-23023 July 1998 Special Rept:On 980624,Unit 1 Site Damaged by Tornado & High Winds.Alert Declared by DBNPS Staff,Dbnps Emergency Response Facilities Activiated & Special Insp Team Deployed to Site by Nrc,As Result of Event ML20236R1441998-07-15015 July 1998 SER Related to Quality Assurance Program Description Changes for Davis-Besse Nuclear Power Station,Unit 1 ML20236N7451998-06-30030 June 1998 Monthly Operating Rept for June 1998 for Davis-Besse Nuclear Power Station,Unit 1 ML20236K3981998-06-30030 June 1998 SER Accepting in Part & Denying in Part Relief Requests from Some of ASME Section XI Requirements as Endorsed by 10CFR50.55a for Containment Insp for Davis-Besse Nuclear Power Station,Unit 1 ML20236K5131998-06-29029 June 1998 Safety Evaluation Accepting Proposed Alternate Emergency Operations Facility Location for Davis-Besse Nuclear Power Station,Unit 1 ML20248F7441998-05-31031 May 1998 Reactor Vessel Working Group,Response to RAI Regarding Reactor Pressure Vessel Integrity ML20249A4121998-05-31031 May 1998 Monthly Operating Rept for May 1998 for Davis-Besse Nuclear Power Station,Unit 1 ML20196B5221998-05-23023 May 1998 10CFR50.59 Summary Rept of Facility Changes,Tests & Experiments Dbnps,Unit 1 for 960602-980523 ML20236E7581998-05-19019 May 1998 Rev 0 to Davis-Besse Unit 1 Cycle 12 Colr ML20236N7501998-04-30030 April 1998 Rev 2 to Monthly Operating Rept for Apr 1998 for Davis-Besse Nuclear Power Station,Unit ML20247F6721998-04-30030 April 1998 Monthly Operating Rept for Apr 1998 for Davis-Bess Nuclear Power Station,Unit 1 ML20249A4141998-04-30030 April 1998 Revised Monthly Operating Rept for Apr 1998 for Davis-Besse Nuclear Power Station,Unit 1 ML20217P8041998-04-0707 April 1998 11RFO OTSG ECT Insp Scope ML20216B4041998-03-31031 March 1998 Monthly Operating Rept for Mar 1998 for Davis-Besse Nuclear Power Station,Unit 1 ML20216C5131998-02-28028 February 1998 Monthly Operating Rept for Feb 1998 for Davis-Besse Nuclear Power Station,Unit 1 ML20202D3721998-01-31031 January 1998 Monthly Operating Rept for Jan 1998 for Davis-Besse Nuclear Power Station,Unit 1 ML20199G6321998-01-26026 January 1998 Rev 1 to Davis-Besse Unit 1,Cycle 11,COLR ML20198R4771998-01-13013 January 1998 SER Approving Second 10-year Interval Inservice Inspection Program Plan Requests for Relief for Davis-Besse Nuclear Power Station,Unit 1 ML20198K7931997-12-31031 December 1997 Monthly Operating Rept for Dec 1997 for Davis-Besse Nuclear Power Station,Unit 1 ML20217K6401997-12-31031 December 1997 1997 Annual Rept First Energy ML20203A3931997-11-30030 November 1997 Monthly Operating Rept for Nov 1997 for Davis-Besse Nuclear Power Plant,Unit 1 ML20198S5371997-10-31031 October 1997 Monthly Operating Rept for Oct 1997 for Davis-Besse Nuclear Power Station ML20217H7701997-09-30030 September 1997 Monthly Operating Rept for Sept 1997 for Davis-Besse Nuclear Power Station,Unit 1 ML20216H3261997-08-31031 August 1997 Monthly Operating Rept for August 1997 for DBNPS ML20217K0241997-07-31031 July 1997 Monthly Operating Rept for Jul 1997 for Davis Besse Nuclear Power Station,Unit 1 1999-09-30
[Table view] |
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AVERAGE DAILY UNIT POWER LEVEL O -
DOCKET NO. 50-346 UNIT Davis-Besse Unit 1 DATE COMPLETED BY Bilal Sarsour TELEPHONE (419) 259-5000, Ext. 251 MONTH May, 1980
. DAY AVERAGE DAILY POWER LEVEL '
DAY AVERAGE DAILY POWER LEVEL (MWe-Net) (MWe-Net i 0 g7 0
1 0 i 0
2 18 0 g9 0 3 !
M 0 )
4 .
0 21 O l 5
0 22 0
6 0
, 0 v 0 4 o 8
0 25 0 9
0 26 0 10 0 27 0-l1 0 0 12 28 0
0 13 29 0 0 14 30 0 33 0
15 16 0
4 INSTRUCTIONS On this format. list the aserage daily unit power level in MWe-Net for each day in the ieporting month. Compute to the nearest whole megawatt. ,
(9/77)
"oosiso 2.W .,
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OPERATING DATA REPORT DOCKET NO. 50-346 DATE June 9, 1980 COMPLETED BY Bilal Sarsour TELEPHONE (419) 259-5000
' Ext. 251 OPERATING STATUS Davis-Besse Unit 1 Notes
- 1. Unit Name:
- 2. Reporting Period: May, 1980
- 3. Licensed Thermal Pow er (MWr): 2772
- 4. Nameplate Rating (Gross MWe): 925
- 5. Design Electrical Rating (Net MWe): 906
- 6. Maximum Dependable Capacity (Gross MWe): 934
- 7. Maximum Dependable Capacity (Net MWe): 890
- 8. If Changes Occur in Capacity Ratings (Items Number 3 Through 7) Since Last Report. Give Reasons:
- 9. Power Level To Which Restricted. If Any (Net MWe):
- 10. Reasons For Restrictions. If Any.
1his Month Yr.-to-Date * ~ Cumulative
- 11. Hours in Reporting Period 744 3,647 24,172
- 12. Number Of Hours Reactor Was Critical 0 2,078 13,042
- 13. Reactor Reserve Shutdown Hours 0 0 -28,758
- 14. Hours Generator On Line 0 2,008.7 11,gg3,g
- 15. Unit Reserve Shutdown Hours 0 0 1.728
- 16. Gross Thermal Energy Generated (MWH) 0 -4,687,305 24.886.812 -
- 17. Gross Electrical Energy Generated (MWH) 0 . _ . 1.583.559 8.307.070
- 18. Net Electrical Energy Generated (MWH) 0 1,483,787 7,654,365
- 19. Unit Service Factor 0 55,1 50.4
- 20. Unit Availability Factor 0 55.1 58.2
- 21. Unit Capacity Factor (Using MDC Net) .
O _ 45.7 38.3 44.9
- 22. Unit Capacity Factor (Using DER Net) 0 37.6
- 23. Unit Forced Outage Rate 0 14.3 25.6
- 24. Shutdowns Scheduled Over Next 6 Months (Type. Date,and Duration of Each): ,
- 25. If Shut Down At End Of Report Period. Estimated Date of Startup: August 1, 1980
- 26. Units In Test Status (Prior to Commercial Operation): Forecast , Achieved INITIAL CRITICALITY INITIA L ELECTRICITY COMMERCIAL OPERATION .
(9/77)
"
t DOCKET NO.
50-346' .
UNITSHUTDOWNS ANDIOWER REDUCTIONS ~ '
UNIT NAME Davis-Besse 17 nit 1 DATE June 9. 1980 COMPLETED BY Bilal Sarsour REPORT MONTil
- May, 1980 TELEPil0NE (419) 259-5000 Ext. 251 l
- E E
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g
,5?
3g 3
(
$.E5 Licensee Event Ev, gg h
91 Cause & Corrective Action to No. Date .s s s H
fE $ j g, g Rep.>rt a mV yb Prevent Recurrence 5
4 80 04 7 S 744 C 4 . NA NA NA Unit outage which beg:In on April 7, 1980 was still.in progress through the end o'f May, 1980.
(See operational summary for further details). .
i 2 3* 4 -
1 F: Forced Reason: Method: Exhibit G-Instructions S: Schedu!ed A Equipment Failure (Explain) I Manual for Preparation of Data B-Maintenance of Test 2 Manual Scram. Entry Sheets for Licensee C Refueling 1-Automatic Scram. Event Repor (LER) Fife (NUREG-D Regulatory Restriction 4 Continuation 0161)
E-Operator Training & License Examination 5-Reduction 5
F Administrative '9-Other Exhibit I Same Source G-Oper itional Enror (Explain)
(9/77) Il Other (Explain)
_O_________-_________________ _ _ _ - _ _ _ _ _ _ __ _ _ _ _ _ __ __
OPERATIONAL
SUMMARY
MAY, 1980 5/1/80 - 5/31/80 The unit outage which began on April 7,1980, was still in pro-gress through the end of May, 1980.
The following are the more significant outage activities per-formed during the month of May:
- 1. Replacement of reactor coolant pump seals for Reactor Coolant Pumps 1-1 and 2-2.
- 2. Overhaul of many station pumps and valves.
- 3. Performance of electrical preventive maintenance.
- 4. The turbine work is approximately 75% completed. The high pressure turbine and main feed pump turbine 1-1 are re-assembled, and the low pressure turbine is being reassembled.
- 5. The modificacions to the moisture separator reheater are 70%
completed.
- 6. The majority of the circulating water canal work is completed.
- 7. The modifications to the fuel transfer system were completed.
Fuel shuffle was commenced and was completed'95 hours0.0011 days <br />0.0264 hours <br />1.570767e-4 weeks <br />3.61475e-5 months <br /> later.
- 8. A holddown spring on assembly C-3 was discovered to be broken. The subsequent video investigation of fuel assemblies in the core and spent fuel pool revealed definite spring prob-lems.
l Irradiated springs have been sent to Babcock and Wilcox Lynch-burg Research Center for analyses.
l
DATE: May, 1980 REFUELINGINFOP5ATION
- 1. Name of facility: Davis-3 esse nuclear Power Station Unit 1
- 2. Scheduled date for next refueling shutdown: April, 1980
- 3. Scheduled date for restart following refueling: August, 1980
- 4. Will refueling or resumption of operation thereaf ter require a technical l specification change or other license amendment? If answer is yes, what, l in general, will these be? If answer is no, has the reload fuel design i and core configuration been reviewed by your Plant Safety Review Committee to determine whether any unreviewed safety questions are associated with the core reload (Ref.10 CFR Section 50.59)?
Yes, see attached
- 5. Scheduled date(s) for submitting proposed licensing action and supporting !
information. , February, 1980 (revision submittal expected) l I
- 6. Important licensing considerations associated with refueling, e.g., new or different fuel design or supplier, unreviewed design or performance analysis methods, significant changes in fuel design, new operating procedures.
- 7. The number of fuel assemblies (a) in the core and (b) in the spent fuel storage pool.
44 - Spent Fuel Assemblies (a) 177 (b) 8 - New Fuel Assemblies
- 8. The present licensed spent fuel pool storage capacity and the size of any increase in licensed storage capacity that has been requested or is planned, in number of fuel assemblies.
Present 735 Increase size by 0 (zero) 1
- 9. The projected date of the last refueling that can be discharged to the spent l fuel pool assuming the present licensed capacity. . l Date 1989 (assuming ability to unload the entire core into the spent fuel pool is maintained and the unit goes to an is month reIueling cycle)
REFUELING INFORMATION Continued Page 2 of 2
- 4. The following Technical Specifications (Part A) will require revision:
2.1.1 & 2.1.2 - Reactor Core Safety Limits (and Bases) 2.2.1 - Reactor Protection System Instrumentation Setpoints (and Bases) 3.1.3.6 - Regulating Rod Insertion Limits 3.1.3.7 - Rod Program 3.2.1 - Axial Power Imbalance (and Bases)
The following Technical Specifications (Part A) may also require revision:
3.1.2.8 & 3.1.2.9 - Borated Water Sources (and Bases) 3.2.4 - Quadrant Power Tilt (and Bases)
- 3.2.5 - DNB Parameters (and Bases) 4 0
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- q
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COMPLETED FACILITY CHANGE REQUESTS FCR NO.78-315 3' STEM: Safety Features Actuation System (SFAS)
COMPONENT: SFAS wiring for valve CC1407B CHANGE, TEST, OR EXPERIMENT: On April 26, 1980, FCR 78-315 was closed out. FCR 78-315 was written on June 26, 1978 to document work performed on SFAS Channels 2 and 4 on that date with the verbal approval of Toledo Edison Power Engineering.
The modification involved making wiring changes in two SFAS cabinets such that the white wire on pin "K" of connectors J208 and J408 was moved to pin "C" of each connector which was a spare.
REASON FOR THE CHANCE: The wire running between the two cabinets via pin "K" in connectors J208 and J408 was broken which prevented actuation of valve CC1407B (component cooling water outlet isolation valve from containment). Substituting the spare conductor restored the ability of the SFAS to operate this valve. See Licensee Event Report NP-33-78-88 for further details.
SAFETY EVALUATION: This FCR provides for changing internal cabinet connection wires in channels 2 and 4 of the SFAS in connectors J208 and J408. Presently, these wires show a discontinuity which prevents actuation of valve CC1407B (compon-ent cooling outlet isolation valve from containment) on SFAS logic L422B/L424B.
The wires would be replaced by good wires which would' enable actuation of the above valve as required by the SFAS.
Replacing of defective wires by good wires does not constitute an unreviewed safety question.
l 1
i
'l l
e I
Pib
COMPLETED FACILITY CHANGE REQUEST FCR NO.78-511 SYSTEM: Solid Raduaste '
COMPONENT: Radwaste Solidication System 3 CHANGE, TEST, OR EXPERIMENT: On April 10,1980, the 10CFR50.59 review requested j by FCR 78-511 was completed. The purpose of this review was to comply with the j NRC requirement that such a review be undertaken when a utility utilizes a Chem- {
Nuclear Systems, INC. , mobile radwaste solidification system. System Procedure SP 1104.28, " Solid Radioactive Waste Disposal", was modified to reflect the use of the Chem-Nuclear system.
REASON FOR THE CHANGE: The Chem-Nuclear system is being utilized because the plant's ,
installed solidification system is inoperable. '
SAFETY EVALUATION: Liquid radwaste at Davis-Besse is being solidified using a Chem-Nuclear mobile solidification system. The system is located in the fuel handling area of the auxiliary building on elevation 585', near the existing radwaste drumming station area. This evaluation is based on the skid and liners for the mobile solidi-fication system remaining in their present location in the fuel handling area. The solidified product meets all current NRC and DOT requirements for shipping and burial.
The procedures used to transfer radwaste to the liners and the procedures used for the solidication system (SP 1104.28) have been approved b the Station Review Board.
Liquid radwaste (2003ft / liner is transferred to a 300 ft liner in the fuel handling crea where it will be solidified by a Chem-Nuclear operator utilizing their mobile colidification system. Once liquid has been placed in a liner, the liner is not moved until it has been solidified, thus eliminating the hazard of spilling due to mishandl-ing. Should a liquid filled liner leak, or the waste supply line to the liner develop a leak, the liquid would flow into the drains in the fuel handling area or the radwaste drumming area drains which are all routed to a sump in the auxiliary building and then into the miscellaneous liquid radwaste system. The drains and the sumps are adequate to handle this material and contain it within the auxiliary building. Normal fuel handling ventilation filtration consists of prefilters and HPEA filters. On high radiation in the fuel handling area, the normal ventilation cystem is actuated for the area to ensure radiation limits at the site boundaries are well within the 10CFR Part 100 guidelines. Therefore, the ventilation systems are adequate to handle the solidification activities in the area. An unreviewed safety question is NOT involved with this activity for the following reasons:
- 1. The probability of occurrence or the consequences of an accident or malfunc-tion of equipment important to safety previously evaluated in the final safety analysis report is NOT increased.
- 2. A possibility for an accident or malfunction of a different type than any evaluated previously in the final safety analysis report is NOT created.
- 3. The margin of safety as defined in the bases for any technical specification is P27 reduced.
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