ML060960638
| ML060960638 | |
| Person / Time | |
|---|---|
| Site: | Braidwood  |
| Issue date: | 11/03/2005 |
| From: | Exelon Nuclear |
| To: | Office of Nuclear Reactor Regulation |
| References | |
| FOIA/PA-2006-0115 | |
| Download: ML060960638 (19) | |
Text
.I Work Order:
00769127 01 A X
Date: 11/03/05 Page:
1
-cility:
BRW BRAIDWOOD GENERATING STATION MASTER lit 00 Project :
Work Ordnr Plekagn r1/O Type:
PM Priority:
C W10 DspIn:
OP Planner : BRWCJ CHOJNICKI J
00769127.
01 W/O Title CIRC WATER BLOWDOWN & MAKEUP VACUUM BREAKER ANNUAL INSPECTIO W/O Task
Title:
OP PERFORM ANNUAL PM ON CW M/U AND B/D VACUUM RELIEF VALVES Written To Task Dspin OP Due Date:
11/09/05 Date: 11/03/05 Late Date:
02/08/06 1111111111Jll 1111 EEEExel
- 01n, Work Ordvr Tmsk Writtafn To PMRQ
- 00098197 01 PM Cat Cd:
PMNS Facility : BRW Unit
- 00 Op Sys :
Division :
Area Sys/CIs:
CW Equipment :
Component:
Work Item : OBWOS CW-A1 Eqt. List:
Ops Review Reqd:
Equip. Tag:
Alt:
UTC Tbl/Brkdwn:
(Past 12 mo)
Catalog ID:
Job Type : PM UCR:NJ Client/Act:
--ication Shift Authorization to start work :
9
_ls_ 07+
Work Started
&- rxX
//17 -r, Work Stopped k
/I-I-O 14ag Supv Review of Work Completion QC Review of work ANI Review of Code work Post Maintenance Test Complete Shift Approval for Completion QC Review of work package ANI Review of work package
- Nov it__.____0_
Work Order Th&k Ingntrunttlnn' l
PERFORM OBWOS CW-A1 X(
SIGN OFF PMTS FOR W0 S 820879 AND 757898.
i
Work Order:
00769127 01 Date: 11/03/05 Page:
2
'tfwclparInformatLan xWP Required N
Contain Closure Doc Pkg A Mode:
Contain Integrity:
Q Group QA Grade:
Train Status NCR TS/SLC Related Tech Spec Action:
Maintenance Rel. :
SCO Tech Spec Date:
Detection Symptom Failure/Date:
Discovery Status :
Plant Effect:
Sys Effect Ctrl Rm Comm Reqd:
Safety Class:
NS i
Work Order:
00769127 01 Date: 11/03/05 Page:
3 Found IAR I cft ContIonc Surv Found Within Acceptance Criteria:
X Surv Left Within Acceptance Criteria :
L Update Predefine (circle one of owing):
Complete/SAT -
Cmplte/Porion T
Partial Failed DESCRIBE AS FOUND EQUIPMENT CONDITIONS (Cir (A)Better than Expctd (C)As-Expctd (D)Wor e than ctd (F)Failed (N)N/A r-ammanL-
"I,.{
A 1
l I
I E ND O F R E POR T
OBwOS CW-p 6
Revision 2 B/V Continuous Use UNIT COMMON CIRCULATING WATER SYSTEM BLOWDOWN AND MAKEUP VACUUM BREAKER VALVE INSPECTION A.
STATEMENT OF APPLICABILITY This procedure provides the steps necessary to visually inspect & manually cycle CW Blowdown and Makeup Vacuum Breaker/Butterfly Isolation Valves to increase reliability.
This procedure to be performed per a predefined program during all modes of operation.
B.
REFERENCES
- 1.
Station Procedures:
- a.
BwOP CW-M2, CW System Valve Lineup.
- b.
BwOP CW-9, Circulating Water Makeup System Startup.
- c.
BwOP CW-10, Circulating Water Makeup Pump/System Shutdown.
- d.
BwOP CW-12, Circulating Water Blowdown System Fill, Startup, Operation, and Shutdown.
- 2.
Station Drawing:
M44, Sheet 3A, CW Makeup System.
- 3.
ODCM Radioactive Effluent Technical Standards (RETS):
- a.
12.2.1.a.
- b.
12.3.1.a.
- 4.
CR A2000-04281, Blowdown Vacuum Breaker Failure Root Cause Report.
1
OBwOS CW-AI Revision 2 Continuous Use C.
PREREQUISITES
<6 Circulating Water Blowdown must be in operation to perform Blowdown Vacuum Breaker Valve portion of this surveillance.
d?
Circulating Water Makeup must be in operation to perform Makeup Vacuum Breaker Valve portion of this surveillance.
X~
A suitable operator extension bar/wrench is required to perform butterfly Isolation valve actuations from outside the valve pit.
J.
A suitable pry bar is required to remove valve pit manhole covers.
X A -10 foot tape measure is required for taking valve pit water levels.
- 4.
A radio should be carried along, if available.
An electronic navigation device, (GPS) may be required.
D.
PRECAUTIONS
- d.
INFORM Shift Manager before starting, and after completing surveillance.
41 If a blowdown line inspection is required per BwOP CW-12, or initiating BwARs, the Blowdown Vacuum Breaker Valve portion of this surveillance need only be performed (with the exception steps F.3 & G.3 do not apply). The associated predefine shall only be credited as a partial surveillance.
E.
LIMITATIONS AND ACTIONS e{
To preclude entry into confined space, all inspectionsivalve manipulations to be performed without personnel entry into the valve pit.
£ Leaking CW Blowdown Vacuum Breakers shall be treated as possible NPDES violation and potentially contaminated (water/soil).
K?
If any leak is discovered in the Blowdown system, CONTACT the Shift Manager immediately; generate an Issue Report (IR).
4?
CONTACT Radiation Protection immediately if any leaks are discovered in the CW Blowdown system.
X NOTIFY the licensed Wastewater Treatment Operator (Via Chemistry Department) if any leaks are discovered in the CW Blowdown system I'
I 2
OBwOS CW-Al Revision 2 Continuous Use If a large leak (ie; water running off general area) is discovered in the Makeup system, CONTACT the Shift Manager immediately, generate an Issue Report (IR).
NOTIFY the licensed Wastewater Treatment Operator (Via Chemistry Department) if large leaks (le; water running off general area) are discovered in CW makeup system.
IF, during the surveillance performance, debris is discovered on a valve which could interfere with valve operation and/or excessive corrosion build up Is present on external valve assembly components (le; bolting, air release piping, etc.), GENERATE a Work Request (WR) to have the valve repaired.
IF, during the surveillance performance, the butterfly Isolation valve being cycled will not operate, or appears to be too difficult to operate, GENERATE an Issue Report (IR).
l 3
i
OBwOS CW-Al Revision 2 Continuous Use F.
MAIN BODY NOTE To preclude entry Into confined space, all inspections/valve 64f manipulations to be performed without personnel entry into the valve pit.
NOTE Perform Steps I through 6 for each of the valves listed on the blowdown or makeup data sheets.
REMOVE the manhole cover for the associated valve pit.
- 2.
PERFORM a visual Inspection of the Vacuum Breaker valve and its associated Air Release valve. Specific items to look for are listed below:
Af Water leaking from top of Vacuum Breaker valve.
I.
Water leaking from the vent of Air Release valve.
4$
Debris on valve which could interfere with valve operation.
6 Excessive corrosion build up on external valve assembly components (ie; bolting, air release piping, etc.).
&ge High water level around base Vacuum Breaker valve.
4(
IF vacuum Breaker butterfly isolation valve to be stroked in the next step has a locking device, THEN remove the locking device (otherwise N/A).
4 OPERATE Vacuum Breaker butterfly isolation through a full cycle of operation.
f IF locking device was removed in Step F.3, THEN replace the locking device (otherwise N/A).
- 4.
REPLACE the manhole cover for the associated valve pit.
i PERFORM Steps 1 through 6 for each of the valves listed on Blowdown and/or Makeup data sheets.
ti?
GENERATE an Issue Report (IR) for any valves w/ UNSAT conditions on the data sheet(s).
4
OBwOS CW-Al Revision 2 Continuous Use F.
GENERATE an Issue Report (IR) for any of the following conditions: 1) any blowdown valves with leakage, 2) any makeup valves with large leakage (ie; water running off general area), and/or 3) Isolation valves which cycled UNSAT.
4 FORWARD a copy of data sheets to System Engineering for trending purposes.
G.
ACCEPTANCE CRITERIA NOTE e5 Generate an Issue Report (IR) for any Acceptance Criteria not met.
I No visible sign of water leakage from vacuum breaker valve assemblies listed on the data sheet. Applicable to blowdown vacuum breakers only.
6 No large leakage (ie; water running off general area) from vacuum breaker valve assemblies listed on the data sheet. Applicable to makeup vacuum breakers
- ^
only.
Each Isolation valve on the data sheet(s) has been operated through a full cycle of operation.
(Final) 5
OBwOS CW-Al Revision 2 Continuous Use CW BLOWDOWN VACUUM BREAKER VALVE ANNUAL INSPECTION DATA SHEET NOTE Contact Radiation Protection Immediately if any leaks are discovered C in the CW Blowdown system.
NOTE Vacuum breaker valves are listed on data sheet starting at the River Screen House and working back to the plant.
NOTE
,(
Generate a Work Request (WR) for any valves with UNSAT.
conditions. Generate an Issue Report (IR) for any Blowdown Valves with UNSAY leakage and/or Isolation Valves, which cycled UNSAT.
I 0CW078.
Location:
0 0.1 mile north of Smiley Rd. & 50' west of Hwy 113. Gain access from Hwy 113.
0 N 410 15.046' W 880 08.276'
¢
- 1.
Valve assembly leak-free:
AT UNSAT (Circle appropri
- 2.
Debris present on valve:
UNSAT (Circle appropriz
- 3.
Excessive external corrosion:
i)
UNSAT (Circle appropri;
- 4.
Water present in valve pit:
0 YES_ inches (Circle appropri.
¢
- 5.
0CW077 Isolation Valve cycled: rSAT)
UNSAT (Circle appropri.
ate) ate) ate) ate) ate)
I1.
Comments:
/ I-71J-or Initial Date D-2
)
OBwOS CW-Al Revision 2 Continuous Use CW BLOWDOWN VACUUM BREAKER VALVE ANNUAL INSPECTION DATA SHEET (Contd)
OCW075 Location:
0 0.2 mile north of Smiley Rd. & 0.1 mile west of West River Rd (22400 West). Gain access from Smiley Rd. near visible natural gas pipe crossing sign.
0 N 410 15.023' W 880 09.166'
- 1.
Valve assembly leak-free:
(LI UNSAT (Circle appropr
- 2.
Debris present on valve:
UNSAT (Circle appropr
- 3.
Excessive external corrosion:
(
UNSAT (Circle appropr
- 4.
Water present In valve pit:
N YES_ Inches (Circle appropr
- 5.
OCW074 Isolation Valve cycled:
UNSAT (Circle appropri Comments:
-late) late) late) iate) late) 6
/
lI-1-tm OCW144 Location:
Initial Date 0
0.2 mile north of Smiley Rd. & 0.5 mile west of West River Rd (22400 West). Gain access from Smiley Rd. near visible natural gas pipe crossing sign (same starting point as OCW075 vIv).
o N 41015.017' W 88° 09.575'
- 1.
Valve assembly leak-free:
- 2.
Debris present on valve:
- 3.
Excessive external corrosion:
- 4.
Water present in valve pit:
¢
- 5.
OCWI43 Isolation Valve cycled:
(Ssp 0
0 UNSAT (Circle appropriate)
UNSAT (Circle appropriate)
UNSAT (Circle appropriate)
YES_ inches (Circle appropriate)
UNSAT (Circle appropriate)
Comments:
,!f
/ I //~
Initial Date D-3
N)
OBwOS CW-AI Revision 2 Continuous Use CW BLOWDOWN VACUUM BREAKER VALVE ANNUAL INSPECTION DATA SHEET (Contd)
OCW069 Location:
0 0.2 mile North of Smiley Rd. & 1.2 mile west of West River Rd. (22400 West). Gain access from Smiley Rd. on east side of farmer fence row at steel gate.
0 N41015.001' W 880 10.384'
- 1.
Valve assembly leak-free:
JUNSAT (Circle appropriate
- 2.
Debris present on valve:
UNSAT (Circle appropriate
- 3.
Excessive external corrosion:
UNSAT (Circle appropriate
- 4.
Water present in valve pit:
YES_ inches (Circle appropriate
- 5.
OCW068 Isolation Valve cycled: ET UNSAT (Circle appropriate Comments:
I)
)
I ni ia
/ 1D a 1 Initial Date 1/'
OCW066 Location:
0 0.2 mile north of Smiley Rd. & 0.5 mile east of Essex Rd. Gain access from Essex Rd. near cemetery.
0 N 41014.998' W 880 10.726'
- 1.
Valve assembly leak-free:
(DA UNSAT (Circle appropri;
- 2.
Debris present on valve:
UNSAT (Circle approprhc
- 3.
Excessive external corrosion:
UNSAT (Circle appropri,
- 4.
Water present in valve pit:
YES_ inches (Circle appropric
- 5.
OCW065 Isolation Valve cycled:
UNSAT (Circle appropriz Comments:
3te) ite) ite) ate) ate)
I Ct a
/ D ate-s Initial Date t--
D-4
OBwOS CW-Al Revision 2 Continuous Use CW BLOWDOWN VACUUM BREAKER VALVE ANNUAL INSPECTION DATA SHEET (Contd)
J OCW140 Location:
0 0.2 mile north of Smiley Rd. & 0.2 mile east of Essex Rd. Gain access from Essex Rd. near cemetery (same starting point as 0CW066).
0 N 410 14.994' W 88° 11.005'
- 1.
Valve assembly leak-free:
SA UNSAT (Circle appropriate)
- 2.
Debris present on valve:
UNSAT (Circle appropriate)
- 3.
Excessive external corrosion:
A UNSAT (Circle appropriate)
- 4.
Water present in valve pit:
0 YES_ inches (Circle appropriate)
- 5.
OCW139 Isolation Valve cycled:
UNSAT (Circle appropriate)
Comments:
(2
/ 1// q. 05 iVWi Date 0CW063 Location:
0 0.2 mile north of Smiley Rd. & 0.1 mile west of Essex Rd. Gain access from Smiley Rd. near forest preserve property drive.
o N 41°14.969' o
W880 11.494'
- 1.
Valve assembly leak-free:
UNSAT (Circle approprik
- 2.
Debris present on valve:
UNSAT (Circle approprie
- 3.
Excessive external corrosion:
UNSAT (Circle approprie
- 4.
Water present in valve pit:
i YES_ Inches (Circle appropria
- 5.
0CW062 Isolation Valve cycled:
i)
UNSAT (Circle appropria Comments:
I ate) ate) ate) ite) ate) 4
/ It--1i-or Ipitial Date D-5
OBwOS CW-A1 Revision 2 Continuous Use CW BLOWDOWN VACUUM BREAKER VALVE ANNUAL INSPECTION DATA SHEET (Contd)
OCW138 Location:
0 0.2 mile north of Smiley Rd. & 0.7 mile west of Essex Rd. Gain access from Smiley Rd. at Braidwood Dunes & Savanna Nature Preserve sign.
o N 41014.962' o
W 880 12.097'
- 1.
Valve assembly leak-free:
SA UNSAT (Circle appropria
- 2.
Debris present on valve:
SAT UNSAT (Circle appropria,
- 3.
Excessive external corrosion:
SAT UNSAT (Circle approprial
- 4.
Water present in valve pit:
YES_ inches (Circle approprial
- 5.
.0CW1 37 Isolation Valve cycled:
UNSAT (Circle approprial Comments:
- 1 te) te) te) te) te) 6-I Initial Date OCW060 Location:
0 0.2 mile due north of Braidwood holding pond. Gain access from holding pond at demineralizer makeup pump house.
o N 41°14.681' o
W880 12.641'
- 1.
Valve assembly leak-free:
S UNSAT (Circle appropriate
- 2.
Debris present on valve:
UNSAT (Circle appropriate
- 3.
Excessive external corrosion:
UNSAT (Circle appropriate
- 4.
Water present in valve pit:
YES_ inches (Circle appropriate
- 5.
0CW059 Isolation Valve cycled:
UNSAT (Circle appropriate Comments:
I e) 6//-
F, I iial Date D6
OBwOS CW-A1 Revision 2 Continuous Use CW BLOWDOWN VACUUM BREAKER VALVE ANNUAL INSPECTION DATA SHEET (Contd)
OCW136 Location:
0 0.2 mile north of holding pond & 0.1 mile west of OCW060 valve. Gain access from holding pond at demineralizer makeup pump house (same starting point as OCW06D).
o N 410 14.618' o
W88° 12.834'
- 1.
Valve assembly leak-free:
A UNSAT (Circle appropria
- 2.
Debris present on valve:
UNSAT (Circle appropria
- 3.
Excessive external corrosion:
UNSAT (Circle appropria
- 4.
Water present in valve pit:
YES_ inches (Circle appropriai
- 5.
OCW1 35 Isolation Valve cycled:
UNSAT (Circle approprial Comments:
I te) te) te) te) te)
Iflitial Date OCW058 V13-1 Location:
0 50' due south of switch yard. Gain access from gravel road just south of switch yard.
o N 410 14.567' o
W88° 13.482' 0
- 1.
Valve assembly leak-free:
SAT (
3 (Circle appropriate)
- 2.
Debris present on valve:
U UNSAT (Circle appropriate)
- 3.
Excessive external corrosion:
to UNSAT (Circle appropriate)
- 4.
Water present in valve pit:
YES_ inches (Circle appropriate)
¢
- 5.
0CW057 Isolation Valve cycled:
UNSAT (Circle appropriate)
Comments:
0i'tfJ oAir CA(Ou52
/*
70 A
6E K.
I
.0 Initial Date D-7
.j OBwOS CW-AI Revision 2 1
Continuous Use CW MAKEUP VACUUM BREAKER VALVE ANNUAL INSPECTION DATA SHEET NOTE Vacuum breaker valves are listed on data sheet starting at the River C? Screen H ouse and working back to the plant.
NOTE Generate a Work Request (WR) for any valves with UNSAT conditions. Generate an Issue Report (IR) for any Makeup Valves with large leakage (i.e., water running off general area) andlor Isolation Valves which cycled UNSAT.
I OCW146 Location:
0 0.1 mile north of Smiley Rd. & 50' west of Hwy 113. Gain access from Hwy 113.'
0 N 41° 15.045' W 88 0 08.277'
- 1.
Valve assembly leak-free:
UNSAT (Circle appropri
- 2.
Debris present on valve:
(§)
UNSAT (Circle approprii
- 3.
Excessive external corrosion:
()
UNSAT (Circle appropri,
- 4.
Water present in valve pit:
YES_ inches (Circle appropri.
- 5.
OCW031 Isolation Valve cycled:
UNSAT (Circle appropri, Comments:
ate) ate) ate) ate) ate)
,.q 0 -1/
P V
Initial Date
OBwOS CW-Al Revision 2 Continuous Use CW MAKEUP VACUUM BREAKER VALVE ANNUAL INSPECTION DATA SHEET (Contd) 0CW036 Location:
0 0.2 mile north of Smiley Rd. & 0.1 mile west of West River Rd. (22400 West). Gain access from Smiley Rd. near visible natural gas pipe crossing sign.
0 N 410 15.019' W 880 09.159' l
- 1.
Valve assembly leak-free:
UNSAT (Circle appropriate)
- 2.
Debris present on valve:
UNSAT (Circle appropriate)
- 3.
Excessive external corrosion:
UNSAT (Circle appropriate)
- 4.
Water present in valve pit:
)
YES_ inches (Circle appropriate)
- 5.
0CW035 Isolation Valve cycled:
C)
UNSAT (Circle appropriate)
Comments:
Initial Date OCW1 24 Location:
0 0.2 mile north of Smiley Rd. & 0.5 mile west of West River Rd. (22400 West). Gain access from Smiley Rd. near visible natural gas pipe crossing sign (same starting point as 0CW036 vIv).
o N 41015.017' W 880 09.576' 0
- 1.
Valve assembly leak-free:
SAT (Circle appropriate)
- 2.
Debris present on valve:
(i UNSAT (Circle appropriate)
- 3.
Excessive external corrosion:
UNSAT (Circle appropriate)
- 4.
Water present in valve pit:
NO YES_ inches (Circle appropriate) 0
- 5.
0CW123 Isolation Valve cycled: E ) UNSAT (Circle appropriate)
Comments:
Alit gts5lAoSL go IS L6Ascing Co'-$vAJygosLya OCptJ'4 15 c(.AsX
- 6fr Jazz 6 tl-/I-61 Initial Date D-9
)
41-I OBwOS CW-Al Revision 2 Continuous Use CW MAKEUP VACUUM BREAKER VALVE ANNUAL INSPECTION DATA SHEET (Contd)
OCW039 Location:
0 0.2 mile north of Smiley Rd. & 1.2 mile west of West River Rd. (22400 West). Gain access from Smiley Rd. on east side of farmer fence at steel gate.
0 N 41° 15.000' W 88° 10.385' 0
- 1.
Valve assembly leak-free:
UNSAT (Circle appropriate)
- 2.
Debris present on valve:
UNSAT (Circle appropriate)
- 3.
Excessive external corrosion:
UNSAT (Circle appropriate)
- 4.
Water present in valve pit:
YES___ inches (Circle appropriate)
¢
- 5.
OCWO38 Isolation Valve cycled: (i)
UNSAT (Circle appropriate)
Comments:
I OCW128 Location:
c' I,-,/-
Initial Date 0
0.2 mile north of Smiley Rd. & 0.5 mile east of Essex Rd. Gain access from Essex Rd. near cemetery.
o N 41014.997' W880 10.726'
-06
¢
- 1.
Valve assembly leak-free:
- 2.
Debris present on valve:
- 3.
Excessive external corrosion:
- 4.
Water present in valve pit:
¢
- 5.
OCW127 Isolation Valve cycled:
Comments:
SA A.
UNSAT UNSAT UNSAT YES inches UNSAT (Circle appropriate)
(Circle appropriate)
(Circle appropriate)
(Circle appropriate)
(Circle appropriate)
Initial Date 10 D-10
Y OBwOS CW-Al Revision 2 Continuous Use CW MAKEUP VACUUM BREAKER VALVE ANNUAL INSPECTION DATA SHEET (Contd)
OCW130 Location:
0 0.2 mile north of Smiley Rd. & 0.2 mile east of Essex Rd. Gain access from Essex Rd. near cemetery (same starting point as OCW128).
0 N 41° 14.989' W880 11.007'
- 1.
Valve assembly leak-free:
A UNSAT (Circle appropria
- 2.
Debris present on valve:
A UNSAT (Circle approprie
- 3.
Excessive external corrosion:
UNSAT (Circle appropriz
- 4.
Water present In valve pit:
YES_ inches (Circle appropriz
- 5.
OCW129 Isolation Valve cycled:
UNSAT (Circle appropria Comments:
ite) ite) ate) ite) ate) ni/
//-tal D
Initial Date OCW132 Location:
0 0.2 mile north of Smiley Rd. & 0.1 mile west of Essex Rd. Gain access from Smiley Rd. near forest preserve property drive.
o N 41014.969' o
W 880 11.494'
- 1.
Valve assembly leak-free:
DAT UNSAT (Circle appropria
- 2.
Debris present on valve:
@)
UNSAT (Circle approprik
- 3.
Excessive external corrosion:
UNSAT (Circle approprii
- 4.
Water present in valve pit:
YES inches (Circle approprie
- 5.
OCW131 Isolation Valve cycled:
UNSAT (Circle approprie Comments:
I ate) ate) ite) ate) ite) 4I
/ I;I'-w Initial Date D-11
t1 OBwOS CW-Al Revision 2 Continuous Use CW MAKEUP VACUUM BREAKER VALVE ANNUAL INSPECTION DATA SHEET (Contd)
OCW134 Location:
0 0.2 mile north of Smiley Rd. & 0.7 mile west of Essex Rd. Gain access from Smiley Rd. at Braidwood Dunes & Savanna Nature Preserve sign.
o N 41° 14.962' o
W 880 12.097'
- 1.
Valve assembly leak-free:
SAT UNSAT (Circle appropria
- 2.
Debris present on valve:
SA UNSAT (Circle appropria
- 3.
Excessive external corrosion:
(9)
UNSAT (Circle appropria
- 4.
Water present in valve pit:
!)
YES_ inches (Circle approprial
- 5.
OCW133 Isolation Valve cycled: (B)
UNSAT (Circle approprial Comments:
I te) te) te) te) te)
)
Cf' I / /- //-of-Initial Date (Final)
D-12