ML20063L334
| ML20063L334 | |
| Person / Time | |
|---|---|
| Site: | Monticello  |
| Issue date: | 12/31/1993 |
| From: | Richard Anderson NORTHERN STATES POWER CO. |
| To: | NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM) |
| References | |
| NUDOCS 9403040228 | |
| Download: ML20063L334 (7) | |
Text
.
Northern States Power Company 414 Nicollet Maff Minneapolis, Minnesota 55401 1927' Telephane (612) 330-5500 February 11, 1994 10CFR 20.407 and Monticello Technical Specification Sections 6.7.A.2 & 6.7.A.6 US Nuclear Regulatory Commission Attn: Document Control Desk Washington, D.C. 20555 MONTICELIA NUCLEAR CENERATING PLANT Docket No. 50-263 License No. DPR-22 Annual Report of Occupational Radiation Exposure and Safety Relief Valve Challences - January 1 throuch December 31. 1993 Attached are three reports for 1993:
1)
Annual Report of Personnel Whole Body Exposure (Required by 10 CFR Part 20, Section 20.407(a)(1) and Section 20.407(b))
2)
Annual Report of Occupational Exposure (Required by Technical Specification 6.7.A.2) 3)
Annual Report of Safety and Relief Valve Failures and Challenges (Required by Technical Specification 6.7.A.6 and NUREG 0737, Item II.K.3.3)
This letter contains no new NRC commitments, nor does it modify any prior commitments.
Please contact Marv Engen at (612) 295-1291 if you require additional information concerning these reports.
/fA Ro er 0 Anderson Director Licensing and Management Issues cc: Director, Office of Nuclear Regulatory Research Regional Administrator-III, NRC NRR Project Manager, NRC Resident Inspector, NRC State of Minnesota, Attn: Kris Sanda 90 ann-l 9403040228 931231
/
PDR ADDCK 05000265
[
[
R PDR
}
USNRC NORTHERN STATES POWER COMPANY
, February 11, 1994 Page 2 Attachments: - Personnel Whole Body Exposure Report - Annual Report of Occupationa} Radiation Exposure + Annual Report of Safety / Relief Valve Failures and Challenges i
i
l' l
i I
ATTACHMENT 1 License:
DPR-22 PERSONNEL WHOLE BODY EXPOSURE REPORT FOR (ALENDAR YEAR 1993 ANNUAL DOSE RANGES NUMBER OF INDIVIDUALS IN EACH RANGE REM 1
446 No measurable exposure 274
<0.100 146 0.100 - 0.249 148 0.250 - 0.499 96 0.500 - 0.749 105 0.750 - 0.999 181 1.000 - 1.999 4
2.000 - 3.000 0
>3.000 TOTAL NUMBER OF INDIVIDUALS REPORTED 1402 TOTAL PERSON-REM 493.966 The information submitted is for the total number of individuals for whom personnel monitoring was required during the calendar year.
. _._......... _ __. =._. _ =_._., _.. _ _ _ ___
m
}-
I r
i ATTACHMENT 2 i
' e MONTICELLO NUCLEAR GENERATING PIANT ANNUAL REPORT OF OCCUPATIONAL RADIATION EXPOSURE 1993 e
a J
Y 9
1 1
i
~l i
i e
1 i
r t
i 2
s 4
'I w
9 5
i i
4 1
a i
L j
J l
j
Number of Personnel and Man-Rem by' Work and Job Function (1993)
Number of Persons >.100 Total Man-Rem Work & Job Function Station Utility Contract Station Utility Contract.
t Rx Ops & Surv Operations 45 0
0 30.052 0.0 0.0 Maintenance 40 93 3
9.378 28.287 2.421 Supv & Engr 40 3
10 21.642 1.165 3.887 Health Physics 23 0
18 10.573 0.0 4.416-Instr & Control 8
0 0
4.868 0.0 0.0 Security 0
0 0
0.0 0.0 1.320 Routine Maintenance Operators 10 0
0 3.208 0.0 0.0 Maintenence 45 240 29 25.831 81.861 8.049 Supv & Engr 6
0 11 2.158 0.339 3.669 l
Health Physics 10 0
16 2.906-0.0 4.434 Instr & Control 0
0 0
0.245 0.0 0.0 Security 0
0 0
0.0 0.0 0.0 Special Maintenance Operators 34 0
0 11.260 0.0 0.0 Maintenance 26 144 29 12.633 88.667 9.018 i
Supv & Engr 19 2
15 6.405 1.057 4.226 i
Health Physics 10 0
21 5.876 0.0 10.078 Instr & Control 8
0 0
4.885 0.0 0.0 i
Security 0
0 0
0.0 0.0 0.0 Waste Processing Operators 0
0 0
0.188 0.0 0.0.
Maintenance 0
8 0
0.218 2.785 0.059 Supv & Engr 1
0 8
0.241 0.010 2.529 Health Physics 0
0 2
0.073 0.0 0.605 Instr & Control 0
0 0
0.005 0.0 0.0 security 0
0 0
0.0 0.0 0.0 Refueling Operators 48 0
0 14.503 0.0 0.0 Maintenance 9
30 0
2.238 7.293 0.0 l
Supv & Engr 2
0 5
0.594 0.143 1.159 I
Health Physics 3
0 3
1.257 0.0 1.256 l
Instr & Control 0
0 0
0.071 0.0 0.0 Security 0
0 0
0.0 0.0 0.014 inservice Inspection Operators 0
0 0
0.341 0.0
. 0. 0 t
Maintenance 1
45 20 0.254 15.791 13.233 s
Supv & Engr 1
0 32 0.320 0.122 23.045 l
Health Physics 2
0 3
0.444 0.0 1.017 i
Instr &-Control 0
0 0
'0.026 0.0 0.0 Security 0
0 0
0.0 0.0 0.0 Unassigned Exposure
-0.682 0.0 0.0
[
Page 1
- ^
- Sub Totals Operators 137 0
0 59.552 0.0 0.0 Maintenance 121 560 81 50.552 224.684 32.780 Supv & Engr 69 5
81 31.360 2.836 38.515 Health Physics 48 0
63 21.129 0.0 21.806 Instr & Control 16 0
0 10.100 0.0 0.0 Security 0
0 0
0.0 0.0
- 1.334 Unassigned
-0.682 0.0 0.0 Grand Totals 391 565 225-172.011-227.520 94.435 Special Maintenance Items: 1) Plant Painting
- 2) Hard Pipe Drywell Vent Project
- 3) Refueling Outage
- INDIVIDUALS MAY BE LISTED UNDER MORE THAN ONE WORK AND JOB FUNCTION Page 2
ATTACHMENT 3 MONTICELID NUCLEAR GENERATING PLANT ANNUAL REPORT OF SAFETY / RELIEF VALVE FAILURES AND CHALLENGES 1993 This report is made in accordance with NUREG-0737 Item II.K.3.3 and Monticello Technical Specification 6.7. A.6 and covers the period from ' January 1 through December 31, 1993.
Failures 03/25/93 The topworks (pilot and second stage assembly) associated with safety / relief valve RV-2-71B was changed out due to excessive pilot /second stage leakage.
The topworks associated with safety / relief valve RV-2-71H was changed out due to a suspected small leak on the pilot stage bellows.
Challenges 03/23/93 Safety / relief valve RV-2-71H lifted automatically once at a reactor pressure of 1052 psig following a reactor scram during plant startup.
The lift was initiated by the valve's low-low set' logic.
The valve lift setpoint under this logic scheme is.1052 psig.
The self actuation setpoint of the' valve is 1109 psig.
This safety relief valve challenge was previously reported in Monticello Licensee Event Report 93-006.