ML19224B117
| ML19224B117 | |
| Person / Time | |
|---|---|
| Site: | Crane  |
| Issue date: | 11/09/1978 |
| From: | Metropolitan Edison Co |
| To: | Mullinix W NRC/IE |
| References | |
| 2105-1.12, TM-0165, TM-165, NUDOCS 7906140065 | |
| Download: ML19224B117 (79) | |
Text
s a
y TMI DOCUMENTS _
DOCUMENT NO:
COPY MADE ON OF DOCUMENT PROVIDED BY METROPOLITAN EDISON COMPANY.
Wilda R. Mullinix, NRC 7906140065 5i 187 082 6
2105-1.12 t
s Revision 6 PO;.
W i. ! ;.,.
11/09/78 CEN & i.d THREE MILE ;3 LAND NUCLEAR STATION UNIT #2 OPERATING PROCEDURE 2105-1.12
\\RADIATIONMONIORINGSYSTEMSETPOINTS h
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Unit 1 Staff Recommerids Approval Unit 2 Staff Recommends Approval Approval
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Date ~
Approval Date Ccgnizant Dept. Head Cognizant Dept. Head Unit 1 PORC Recommends Approval Unit 2 RC Recommends Approval
/
L te Date //
Chairman of FORC J/// Chailrnan of PORC
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fi Unit 1 Superintendent Approval Unit 2 e eri te dent pproval Date // 9!?tf
^
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Date
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Mayer Generat en Quality Assurance Approva' D: Ib/
UOJ l
TMi 55 A R ow 8/ 7 7
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2105-1.12 d
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THREE MILE ISLAtt0 flUCLEl.R STATI0:1 i
I UNIT #2 OlERATIllG PROCEDURE 2105-1.12 n
\\
Radiation Monitoring System Setpoints t
1.
PURPOSE The intent of this procedure is to provide a list of current Radiation
\\
Monitoring System alert and hi-alann setpoints, the basis for the setpoint and the calculations used to determine the setpoint.
2.0 DESCRIPTIO1 The Radiation Mcnitoring System alert and hi-alarm setpoints are intended to be both a means of informing control room personnel of abnomal radiatica contamination levels and of initiating automatic l
action to reduce the consequences of these abncmal radiation
(
levels. This document describes these setpoints but coes not detail automatic or manual responses to any alarm.
This document should be used in conjunction with the following:
1.
TMI-2 Final Safety Analysis Report.
i 2.
TMI-2 Technical Specifications.
3.
Emergency Prn~ ^.e 2207-1.7; Excessive Radi ation Levels.
i 4.
Resperse to Alarm procedure 2204-12.
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I87 084 i
2105-1.12 Revision 5 06/20/78 AREA MONITORS MONITOR ALERT ALARM HIGH ALARM HP-R-201 0.7 MR/hr 1.4 MR/hr HP-R-202 0.7 MR/hr 1.4 MR/hr HP-R-204 1.0 MR/hr 2.0 MR/hr HP-R-205 1.0 MR/hr 2.0 MR/hr HP-R-206 10.0 MR/hr 20.0 MR/hr HP-R-207 1.0 MR/hr 2.0 MR/hr HP-R-209 (Modes 1,2,3,4 & 5) 2.0 R/hr 5.0 R/hr (Mode 6) 100.0 MR/hr 1.0 R/hr HP-R-210 (Modes 1,2,3,4 & 5) 2.0 R/hr 5.0 R/hr (Mode 6) 100.0 MR/hr 1.0 R/hr HP-R-211 25.0 MR/hr 50.0 MR/hr HP-R-212 25.0 MR/hr 50.0 M3/hr i
HP-R-213 25.0 MR/hr 53.0 '<R/hr HP-R-214 25.0 MR/hr 8.0 R/hr HP-R-215 10.C MR/hr 20.0 MR/hr HP-R-218 25.0 MR/hr 50.0 MR/hr HP-R-231 500.0 MR/hr 1.0 R/hr HP-R-232 1.2 MR/hr 2.0 MR/hr HP-R-233 1.0 MR/hr 2.0 MR/hr HP-R-P3A 1.0 MR/hr 2.0 MR/hr HP-R-3236 10.0 MR/hr 20.0 MR/hr HP-R-3238 10.0 MR/hr 20.0 MR/hr
=
HP-R-3240 10.0 MR/hr 20.0 MR/hr 187 085 2.0 5
~
2105-1.12 Revision 5 06/20/78 ATMOSPHERIC PONITOR MONITOR ALERT ALARM HIGH ALARM HP-R-219 (P) 6.5 X 10+2 CPM 1.3 X 10+3 CPM HP-R-219 (I) 7.9 X 10+ CPM 1.58 X 10+5 CPM HP-R-219 (G) 5.0 X 10+3 CPM l.0 X 10*4 CPM HP-R-220 (P) 150 CPM 200 CPM HP-R-220 (I) 100,000 CPM 200,000 CPM HP-R-220 (G) 130 CPM 260 CPM HP-R-221A (P) 4000 CPM 8000 CPM HP-R-221A (I) 125,000 CPM 250,000 CPM HP-R-221A (G) 20,000 CPM 40.000 CPM HP-R-221B (P) 3500 CPM 7000 CPM HP-R-2218 (I) 100,000 CPM 200,000 CPM HP-R-2218 (G) 15,000 CPM 30,000 CPM HP-R-222 (P) 2500 CPM 5000 CPM HP-R-222 (I) 75,000 CPM 150,000 CPM HP-R-222 (G) 10,000 CPM 20,000 CPM HP-R-223 (P) 5.5 X 10+2 CPM 1.1 X 10+3 HP-R-223 (I) 1.15 X 10+5 CPM 2.3 X 10+5 CPM HP-R-223 (G) 130 CPM 260 CPM HP-R-224 (P) 5.5 X 10+2 CPM 1.1 X 10+3 CPM HP-R-224 (I) 1.15 X 10+5 CPM 2.3 X 10+5 CPM HP-R-224 (G) 130 CPM 260 CPM HP-R-225 (o) 5000 CPM 10,000 CPM i
HP-R-225 (I) 100,000 CPM 200,000 CPM
~e
?
HP-R-225 (G) 40,000 CPM 80,000 CPM 187 086
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3.0 f
2105-1.12 2
e Revision 5 06/20/78 ATMOSPHERIC MONITOR (cont'd) e MONITOR ALERT ALARM HIGH ALARM HP-R-226 (P) 5000 CPM 10,000 CPM HP-R-226 (I) 100,000 CPM 200,000 CPM HP-R-226 (G) 40,000 CPM 80,000 CPM HP-R-227(P) 25,000 CPM 50,000 CPM HP-R-227 (I) 2000 CPM 5000 CPM HP-R-227 (G) 10,000 CPM 20,000 CPM HP-R-228 (P) 2000 CPM 4000 CPM HP-R-228 (I) 50,000 CPM 100,000 CPM HP-R-228 (G) 10,000 CPM 20,000 CPM HP-R-229 (P) 80,000 CPM 160,000 CPM HP-R-229 (I) 200,000 CPM 400,000 CPM HP-R-229 (G) 60,000 CPM 120,000 CPM WDG-R-1480 (G) 200,000 CPM 400,000 CPM WCG-R-1485 (G) 150,000 CPM 300,000 CPM WCG-R-1485 (G) 150,000 CPM 200,000 CPM VA-R-748 (G) 1000 CPM 2000 CPM 4.0 187 087 e
o
2105-1.12 Revision 6 11/09/78 LIQUID MONITC15 MONITOR ALERT ALARM HIGH ALARM MU-R-720 (Gross) 2.5 X 10+5 CPM 5.0 X 10+5 CPM MU-R-720 (Analyze) 2.5 X 10+5 CPM 5.0 X 10
- 1800 CPM 9000 CPM DC-R-3399 400 CPM 2000 CPM DC-R-3400 400 CPM 2000 CPM ES-R-3401 400 CPM 2000 CPM SF-R-3402 4000 CPM 10,000 CPM WT-R-3394 1000 CPM 2000 CPM WT-R-3895 750 CPM 1500 CPM
- Curing Release see HPP 1621.2 Releasing Radioactive Liquid Waste, for 1
determination of setpoint, since the setpoint will vary depending on 9
concentration to be released.
l g
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9
't U
187 088 (j
5.0 m
2105-1.12 Revision 5 06/20/78
~
i HP-R-201_
Control Room Location:
HIGH ALARM SETPOINT_:
1.4 mR/hr The Control Rocm is designed for continuous Basis:
occupancy at a maximum of 3 RB4 in 90 days.
3 3 x 10 mg (90 Days)(24 hous/ day)-
1.4 mR/hr Calculation:
ALERT SETPOINT_:
0.7 mR/hr 50% of high alarm setpoint.
Basis:
t
- i 5'
187 089 2
2105-1.12 Revision 5 06/20/78 HP-R-202 Location:
Cable Room HIGH ALARM SETPOINT:
1.4 mR/hr Basis:
The Control Roo:n is designed for continuous occupancy at a maximum of 3 REM in 90 days.
3 Calculation:
3 x 10 mR
= 1*4 mR/hr (90 Days)(24 hous/ day)
ALERT SETPOINT:
0.7 mR/hr Basis:
50% of high alarm setpoint t
1 187 090 i
s.2 i
2105-1.12 Revision 2 04/21/77 HP-R-204 Location:
Auxiliary Building 281' Elevation - Reactor Building Emergency Cooling Booster Pump Area.
HIGH ALAPfi SETPOINT:
2.0 MR/hr Basis:
2.5 MR/hr is the design value for accessible areas in the Auxiliary Building during normal operations. Choosing the nearest lower meter graduation, the setpoint is 2.0 MR/hr.
Reference:
TMI Unit #2 FSAR; Section 12.1.
ALERT ALARM SETPOINT:
1.0 MR/hr Basis:
50% of the High Alarm Setpoint.
- i 6.0 187 091 f
2105-1.12 Revision 2 04/21/77 HP-R-205 f
Location:
Auxiliary Building 281' elevation - Reactor Coolant Evaporator Control Panel Area.
H!GH ALARM SEIPOINT:
2.0 MR/hr Basis:
2.5 MR/hr is the design value for accessible areas in the Auxiliary Building during normal operations.
Choosing the nearest icwer meter graduation, the setpoint is 2.0 MR/hr.
Ref:
TMI-2 FSAR: Section 12.1.
ALERT SETPOINT:
1.0 MR/hr Basis:
50% of the High Alarm Setpoint 0
Y 7.0 187 092
.e.---e
- - ~
2105-1.12 Revision 2 04/21/77 HP-R-205 Location:
Auxiliary Building - 281' elevation - Make-Up Tank Area.
HIGH ALARM SETPOINT:
20.0 MR/hr Basis:
25.0 MR/hr is tne design value for the corridor betweer, the Make-Up Tank Cubicle and the Make-Up Demineralizer Cubicle.
Choosing the nearest lower meter graduation, the setpoint is 20.0 MR/hr.
Ref:
TMI-2 FSAR; Section 12.1.
ALERT SETPOINT:
10.0 MR/hr Easis:
50% of the High Alarm Setpoint.
.i 187 093 8.0 9
--.-_-====e-
2105-1.12 Revision 2 04/21/77 HP-R-207 Location:
Auxiliary Building 305' Elevation - Intermediate Cooling Pump Area.
HIGH ALARM SETPOINT:
2.0 MR/hr.
Basis:
2.5 MR/hr is the design value for accessible areas in the Auxiliary Building during normal operations.
Choosing the nearest lower meter graduation, the setpoint is 2.0 MR/hr.
Reference:
TMI Unit #2 FSAR; Section 12.1.
ALERT ALARM SETPOINT:
1.0 MR/hr Basis:
50% of the High Alarm Setpoint.
- i 187 094 9.0 x
1
__-a.
_i
2105-1.12 HP-R-2C9 hkh$fy) location:
Reactor Building - Fuel Hand;ing Bridge -
~
North.
HIGH ALARM SETPOINT:
Modes 1, 2, 3, 4, 5:
5 R/hr Basis:
5 X
Background:
Background is anticipated to be approximately 1 R/hr on the fuel handling bridges during normal operations.
ALERT SETPOINT:
Modes 1, 2, 3, 4, 5:
2 R/hr.
Basis:
2 X
Background:
Backgroung = 1 R/hr.
HIGH ALARM SETPOINT:
Mode 6:
1 R/hr Basis:
1 R/hr is indica ive of radiation levels at the bridge due to accidents involving spent fuel, but above those levels which may be attributable to other sources.
ALERT SETPOINT:
100 MR/hr.
Basis:
100 MR/hr will alert the operator to notify the HP Dept of the need to control the area as a "High Radiation Area".
Ref:
10CFR20.202(bl(31 i
10.0 187 095 3.
f
P105-1.12
.<evision 2 04/21/77 HP-R-210 Location:
Reactor Building - Fuel Handling Bridge - Scuth HIGH ALARM SETPOINT:
Modes 1, 2, 3, 4, 5:
5 R/hr.
Basis:
5 X
Background:
Background is anticipated to be approximately 1 R/hr on the fuel handling bridges during normal operations.
ALERT SETPOINT:
Modes 1, 2, 3, 4, 5:
2 R/hr.
Basis:
2 X
Background:
Background = 1 R/hr.
HIGH ALARM SETPOINT:
Mode 6:
1 R/hr.
Basis:
1 R/hr is indicative of radiation levels at the bridge due to accidents involving spent fuel, but above those levels which may be attributable to other sources.
I ALERT SETPOINT:
100 MR/hr.
Basis:
100 MR/hr will alert the operator to notify the i
HP Dept of the need to control th.- area as a "High Radiation Area".
Ref:
1CCFR 20.202(blL31
?
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11.0 i
137 096
. ~ - =. -
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2105-1.12 Revision 2 04/21/77 HP-R-211 Location:
Reactor Building 305' elev. - Personnel Access Hatch Area.
HIGH ALARM SETPOINT:
50 MR/hr.
Basis:
2 times the design value (25 MR/hr) for the 305' elevation of the Reactor Building outside the secondary shield in the vicinity of the Personnel Access Hatch.
Ref:
TMI-2 FSAR; Section 12.1.
ALERT SETPOINT:
25 MR/hr, Basis 50% of the High Alarm Setpoint.
}
187 097 I
,.0 9
2105-1.12 R? vision 2 04/21/77
'k HP-R-212 Location:
Reactor Building 305' elev. - Equipment Access Hatch Area.
'HIGh ALARM SETPOINT:
50 MR/hr.
Basts:
2 times the design value (25 MR/hr) for the 305' elevation of the Reactor Building outside the sr 2ndary shield in the vicinity of the Equipment Access Hatch.
Ref:
TMI-2 FSAR; Section 12.1.
ALERT SETPOIliT:
25 MR/hr.
Basis:
50% of the High Alarm Setpoint.
0
'h 13.0 187 098 \\
\\
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9105-1.12 Revision 2 04/21/77 HP-R-213 Reactor Building 305' elev. - In-Core Instrument Location:
Panel Area.
HIGH ALAPR SETPOINT:
50 MR/hr.
2 times the design value (2d MR/hr) for the Basis:
305' elevation of the Reactor Building outside the secondary shield in the vicinity of the In-Core Instrument Panel Area.
Ref:
TMI-2 FSAR; Section 12.1.
ALERT SETPOINT_:
25 MR/hr.
50% of the High Alarm Setpoint.
Basis:
1 14.0 187 099 6
2105-1.12 Revision 2 04/21/77 HP-R-214 Location:
Reactor Building Dome HIGH ALARM SETPOINT:
8 R/hr.
Basis:
Due to the attenuation rating of the ion-9 chamber lead shielded containment (10 MR/hr to 10 MR/hr), 8 R/hr is equivalent to 800 P/hr in the Reactor Building - a level indicative of a LOCA.
ALERT ALARM SETPOINT:
25 MR/hr.
Basis:
While the Reactor is operating, HP-R-214 is not relied 'upon for personnel protection.
- However, it may be used as preliminary indication of radiation conditions in the Reactor Building prior to any entry.
4 4
~
"E 187 100 15.0
-}
2105-1.12 Revision 4 05/04/78 HP-R-215 Location:
Spent Fuel Pool fuel Handling Bridge - Fuel Handling Building.
HIGH ALARM SETP0lf4T:
20 MR/hr Basis:
TMI Unit #2 Technical Sr.ecification, Ta bl e 3. 3-6.1.
ALERT ALARM SETPOI!iT:
10 MR/hr.
Basis:
50% of High Alarm Setpoint
- t
~5 16.0 187 101 O
_____m
~..
2105-1.12 Revision 2 04/21/77 HP-R-218 Location:
Auxiliary Building 281' Elevation - Waste Disposal Storage Area.
HIGH ALARM SETPOINT:
50 MR/hr.
Basis:
2 times the design value (25 MR/hr) for the Waste Disposal Storage Area.
Reference:
TMI Unit #2 FSAR, Section 12.1.
ALERT ALARM SETPOINT:
25 MR/hr.
Basis:
50% of the High Alarm Setpoint.
- i 17.0 G
G
2105-1.12 Revision 2
~
04/21/77 HP-R-231 Auxiliary Building 280' Elevation - Auxiliary Location:
Building Sump Tank Filter Room.
HIGH ALARM SETPOINT:
1 R/hr.
1 R/hr requires the area to be maintained Basis:
locked and is indicative of a severe radiological hazard.
Reference:
ALERT ALARM SETPOINT_:
500 MR/hr.
50% of the High Alarm Setpoint.
Basis:
i 18.0 187 103 -
- wo._,r.
_ mmm~m_,e e-ham.
2105-1.12 Revision 5 06/20/78 111 232 Location; Auxiliary Building J15'-6" Elevation - Mezzanine Area above Reactor Building Sump Filters.
HIGH ALARM SETPOINT:
2.0 MR/hr.
Basis:
2.5 MR/hr is the design value for accessible areas in the Auxiliary Building during normal operations.
Choosing the nearest lower meter graduation, the setpoint is '.0 MR/hr.
Reference:
TMI Unit #2 FSAR; Section 12.1.
ALERT ALARM SETPOINT:
1.2 MR/hr.
% 50% of the design value for accessible areas Basis:
in the Auxiliary Building.
187 104 19.0 e
f
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2105-1.12 Revision 2 04/21/77 t
HP-R-233 Location:
Auxiliary Building 315'-6" Elevation - Mezzanine Area above Spent Fuel Cooling Filters HIGH ALARM SETPOINT:
2.0 MR/hr.
Basis:
2.5 MR/hr is the design value for accessible areas in the Auxiliary Building during normal operations.
Choosing the nearest icwer meter graduation, the setpoint is 2.0 MR/hr.
Reference:
TMI Unit i2 FSAR; Section 12.1.
ALERT ALARM SETPOINT:
1.0 MR/hr.
Basis:
50% of the High Alarm Setpoint.
ti
!87 l05 20.0 6
.. _.., + - - - - <
2105-1.12 Revision 2 04/21/77 HP-R-234 Location:
Service Building 281' Elevation - Contaminated Drain Tank Roca Area.
HIGH ALARM SETPOINT:
2.0 MR/hr.
Basis:
2.5 MR/hr is the design value for accessible areas in the Auxiliary Building curing normal operations.
Choosing the nearest lower meter graduation, the setpoint is 2.0 MR/hr.
Reference:
TMI Unit #2 FSAR; Section 12.1.
ALERT ALARM SETPOINT:
1.0 MR/hr.
Basis:
50% of the High Alarm Setpoint.
?
i I87 106 21.
e
--.--m 4
- = = -
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~
2105-1.12 Revision 2 04/21/77 HP-R-3236_
Auxiliary Building 328' Elevation - Reactor Location:
Building Purge Air Exhaust Unit Area.
HIGH ALARM SETPOI?tT:
20.0 MR/hr.
25.0 MR/hr is the design value for the Reactor Basis:
Building Purge Air Exhaust Unit Area.
Choosing the nearest lower meter graduation, the setpoint is 20.0 MR/hr.
Ref:
TMI-2 FSAR; tion 12.1.
ALERT SETPOINT:
10.0 MR/hr.
50% of the High Alarm Setpoint.
Basis:
- i 187 107 22.
2105-1.12
.~
Revision 2 04/21/77 HP-R-3238_
Auxiliary Building 328' Elevation - Auxiliary Location:
Building Exhaust Unit Area.
20.0 MR/hr.
HICH ALARM SETPOINT_:
25.0 MR/hr is the design value for the Auxiliary Basis:
Choosing the Building Exhaust Unit Area.
nearest lower meter graduation, the setpoint is 20.0 MR/hr.
Ref: TMI-2 FSAR; Section 12.1.
ALERT SETPOINT:
10.0 MR/hr.
50% of the High ?,larm Setpoint.
Basis:
1 23.0 187 108
-=
i
2105-1.12 Revision 2 04/21/77 HP-R-3240 Location:
Auxiliary Building 328' Elevation - Fuel Handling Building Exhaust Unit Area.
HIGH ALARM SETPOINT:
20.0 MR/hr.
Basis:
25.0 MR/hr is the design value for the Fuel Handling Building Exhaust Unit Area.
Chcosing the nearest lcwer meter graduation, the setpoint is 20.0 MR/hr.
Ref:
TMI-2 FSAR; Section 12.1.
ALERT SETPOINT:
10.0 MR/hr.
Basis:
50% of the High Alarm Setpoint.
1 187 109 W
-e-*
-- * ~~
- * * * * - * ~ *
- ' * ~ ~
2105-1.12 5
Rcvision 4 HP-R-219 (Particulate)
Location:
Station Vent.
~
Sensitivity:
5.3 X 10+11 CPM / Ci/cc (Sr-90) 0 8.5 SCFM,1 in/hr.
HIGH ALARM SETPOINT:
1,300 CPM i
Basis:
Alarm will activata if 50% of the Tech Spec release rate limit of 0.03 uCi/sec and a meter error factor of 75%.
Ref:
TMI-2 Technical Speci ficatiers, Appendix G, Specificatica 2.3.2.b.
Case:
7 1.) Assumed ficwrate thru duct of 147,695 CFM (6.97 X 10 cc/sec)
- Normal flow.
/sec)(5.3 X 10+11 CPM / Ci/cc)(0.75) / (6.97 X D
(0.5)(0.63 3
10+7 cc/sec) = 1.7964 X 10 CPM.
2.) Assumed flowrate thru duct of 197,695 CFM (9.33 X10+7' cc/sec)
- Reactor Building Purge in operation + normal flowrate.
(0.5)(0.63 uCi/sec)(5.3 X 10+11 CPM / Ci/cc)(0.75) / (9.33 X 3
10+7 cc/sec) = 1.342 X 10 CPM.
Choosing the most conservative case the setpoint would be 1.342 X 3
10 CPM, however, since there is no meter graduation at this point, adjust the setpoint to 1.3 X 10 CPM.
ALERT ALARM SETPOINT:
6.5 X 10+2 CPM.
Basis:
50% of High Alarm Setpoint.
h 3
'5 (1.3 X 10 CPM)(0.5) = 650 CPM 25.0 I
e 187 110
~
2105-1.12 Revision 4
/04/78 HP-R-219 (Iodine)
Location:
Station Vent.
Sensitivity:
5.83 X 10+11 CPM / Min./uCi/cc (I-131) assuming a 90% collection efficiency at 1.0 SCFM after 3 hours3.472222e-5 days <br />8.333333e-4 hours <br />4.960317e-6 weeks <br />1.1415e-6 months <br />.
HIGH Al ARM SETPOINT:
60,000 CPM Basis:
Alarm will activate if 50% of the Tech Spec release rate limit of 0.30 uCi/ ec is exceeded for 7 days assuming a _+ 8.0", error due to flow variations and a meter error factor of 75%.
Ref:
TMI-2 Tecnnical Specifications, l
Appendix B, Specification 2.3.2.b.
Case:
7 1.) Assumed flowrate thru duct of 147,695 CFM (6.97 X 10 cc/sec) 1
- Normal flow.
(0.5)(0.30 uCi/sec)(5.83 X 10+11 CPM /uCi/cc)(0.75-0.08)(2 hours2.314815e-5 days <br />5.555556e-4 hours <br />3.306878e-6 weeks <br />7.61e-7 months <br />) 7 (60 min /hr) / (6.97 X 10 cc/sec) = 100,800 CPM.
2.) Assumed flowrate thru duct of 197,695 CFM (9.33 X10+7 cc/sec)
- Reactor Building Purge (Both) in addition to normal flowrate.
(0.5)(0.30 uCi/sec)(4.83 X 10+II
/ Min /uCi/cc)(0.75-0.08)(2 hours2.314815e-5 days <br />5.555556e-4 hours <br />3.306878e-6 weeks <br />7.61e-7 months <br />)
EM (60 min /hr) / (9.33 X 10+7 cc/sec) = 75,300 CPM.
Choosing the most conservative case the setpoint would be 75,300 CPM, however, since there is no meter graduation at this point, adjust the setpoint to 6.0 X 10+4 CPM.
~
'5 ALERT ALARM SETPOINT:
30,000 CPM.
Basis:
50% of High Alarm Setpoint.
(6.0 X 10+4 CPM) (0.5) = 3.0 X 10+4
\\
26.0
\\
187 11\\
^
\\
1 _.
2105-1.12 i
H P-R- 21_9_
(Gas) 5 04/78 Location:
Station Vent.
7 Sensitivity:
3.55 X 10 CPM /uCi/cc. (Xe-133)
HIGH ALARM SETPOINT:
10,000 CPM 3
5M Rasis:
Tech Spec limit of 1.2 X 10
/sec for gross gasous activity and a meter error factor of 75%. Xe - 133 MPC is 3 X 10-7 pCi/cc.
Ref: ICCFR Part 20, Appendix B TMI-2 Technical Specifications, Appendix B, F.aecification 2.3.2.a.
Cases:
1.) Assumed flowrate thru duct of 147,695 CFM (69.7 " /sec) formal flow.
3 (1.2 X 10
/sec)(3.0 X 10-7 uCi/cc) (3.55 X 10/uCi/cc)(0.75) 5M CPM 3
(69.7 M /sec 4
= 1.3751 X 10 CPM.
2.) Assumed flowrate thru duct of 197,695 CFM (93.3 " /sec) Reactor Building Purge (Both) in operation + normal flowrate.
3
-7 uCi (1.2 X 10+5 M /sec)(3.0 X 10
/cc)(3.55 X 10+7 CPM /uCi/cc)(0.75) 3 (93.3 M /sec) 4
= 1.0273 X 10 CPM.
Choosir.g the most conservative case the setpoint would be 1.0273 X 10 CPM, however, since there is no meter graduation at this point, 4
adjust the setpoint to 1.0 A 10 CPM.
f ALERT ALARM SETPOINT:
5000 CPM Basis:
50% of High Alarm Setpoint.
4 3
(1.0 X 10 CPfi)(0.5) = 0.5 X 10 CPM.
27.0 187 112
2105-1.12 l
Revision 4 05/04/78 HP-R-220 (Particulate)
Location:
Control Room _ Intake Duct Sensi tivi ty:
5.3 X 10+11 CPM / Ci/cc (Sr-90) at 1 in/Hr filter movement and 8.5 SCFM.
HIGH ALARM SETPOINT:
300 CPM
-9 Basis:
MPC f r restricted areas of 1 X 10 pCi/cc a
for Sr-90 assuming a + 8.0% error due to flow variations and a 75% meter error factor.
Ref:
10CFR Part 20, Appendix B Calciculations:
(1 X 10- pCi/cc)(5.3 X 10+II CPM /pCi/cc)
(0.75 - 0.08) = 355.1 NOTE:
Since there is no meter graduation i
at this point, adjust the setpoint to the next lower meter graduation, 300 CPM.
ALERT ALARM SETPOINT:
150 CPM Basis:
50% of high alarm setpoint.
Calculation:
-i i
l 187
'fji i
28.0 e = = - -.
2105-1.12
{
~
Revision 4 05/04/78 HP-R-220 (Iodine) location:
Control Room Intake Duct.
~
Sensitivity:
3.895 X 10+
"/ min /uCi/cc (I-131) assuming a 77% collection efficiency of 8.55 CFM after 8 hoars.
HIGH ALARM SETFOItiT:
200,000 CPM Basis:
MPC for restricted areas of 9 X 10 pCi/cc 3
for I-131, alarm will activate in 10 minutes with MPC conditions assuming a + 8.0% error a
due to flow variations and a 75% meter error factor.
Ref:
10 CFR Part 20, Appendix B Calculations:
(9 X 10 uCi/cc)(3.895 X 10+12 CPM / min./uCi/cc)
-9 (10 min)(0.75-0.08) = 2.349 X 10+5 CPM 6
fiOTE:
Since there is no meter graduation at this point, round setpoint to next. lower ten-thousands CPM, 5
2.0 X 10 CPM.
ALERT ALARM SETPOIrlT:
100,000 CPM Sasis:
50% of high alarm setpoint.
5 5
Calculation:
(2.0 X 10 CPM)(0.5) = 1.0 X 10 CPM.
7i 29.0 187 114 6
-e e.
- m-
^ ~ - -. - - - - -
2105-1.12
{
Revision 4 05/04/78
~
HP-R-220(Gas)
Location:
Control Room Intake Duct Sensitivity:
- 3. 55 X 10+7
"/uCi/cc (XE-133)
HIGH ALARM SETPOINT:
260 CPM Basis:
MPC for unrestricted areas of 1 X 10-5 pCi/cc a
for XE-133.
Assumes meter error factor of 75%.
Ref:
Calculation:
(1 X10 Ci/cc)(3.55 X 10+7
"/ uCi/cc)(0.75)
-5
= 266.25 CPM.
NOTE:
Since there is no meter graduation at this point the setpoint to the next lower tens CPM, 260 CPM.
ALERT ALARM SETPOINT:
130 CPM Basis:
50% of high alarm setpoir'.
Calculation:
'5 30.0 187 115 7
2105-1.12 Revision 5 06/20/78 HP-R-221A (Particulate)
Fuel Handli m Building Exhaust Duct Upstream Location:
of Filter 5.3 X 10+11 CPM / Ci/cc (SR-90) 0 8.5 SCFM, 1 in/hr.
Sensitivity:
i HIGH ALARM SETPOIrlT:
8000 CPM Alarm will activate if 50% of the Tech Spec Sasis:
release rate limit of 0.63 uCi/sec at an exhaust flowrate of 38,000 CPM and a meter In order to maintain isokinetic factor of 75%.
sampling, the sampler flowrate will be maintained For this calculation we will use a at 5.5 scfm.
90% overall collection efficiency for the filter.
uCi/Sec)(5.3 X 10+11 CPM /uci/cc)(0.75)(8.5 scf Calculation:
(0.50)(0.63 scfm.
(2.66 X 10+7 Ci/Sec)(0.90)(5.5 scfm)
Since there is no meter graduation at this NOTE:
point, adjust the setpoint to 8.0 X 10+3 CPM.
ALERT ALARM SETPOINT_:
4000 CPM 50% of high alarm setpoint Basis:
(8.0 X 10+3 CPM)(0.5) = 4.0 X 10+3 CPM.
Calculation:
7i
}h[ ]l6 31.0 e
e m
-o--
m-e.-
,-~m m -
-m-mm
2105-1.12 Revision 5 06/20/78 HP-R-221A_(Iodine)
Location:
Fuel Handling Building Exhaust Duct Upstream of Filter.
3.895 X 10+12 G M/ min /uCi/cc (I-131) assuming Sensi tivity :
a 77% collection efficiency after 8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br /> at 8.5 SCFM.
I HIGH ALARM SETP0IllT:
250,000 CPM Basis:
Alarm will activate in 10 minutes if 50%
of the Tech Spec release rate limit of 0.30 uCi/sec is exceeded for 7 days assuming a
+ 8.0% error due (-8.0% most conservative) to flow variations and a meter error factor of 75%. In order to maintain isokinetic sampling, the sampler flowrate will be maintained at 5.5 scfm For this calculation we will use a 90% overall collection efficiency for the filter.
Calculation:
(0.5)(0.30 uCi/sec)(3.895 X 10+I t.PM/ min /uCi/cc)/J.75-0.08)(10 min)(8.5 scfr (2.66 X 10+7 cc/sec) (0.90)(5.5 scfm) 2.5 X 10+5 CPM
=
t;0TE:
Since there is no meter graduation at this point adjust the setpoint to 2.5 X 10+5 CPM.
sLERT ALARM SETPOIt1T:
125,000 CPM Basis:
50% of high alarm setpoint j
Calculation:
(2.5 X 10+5 CPM) (0.5) = 1.25 X 10+5 CPM 187 117 6
'e 6-me h
ew ee
41U3-l.14 Revision 4
_~
05/04/78 HP-R-221A (Gas) i Location:
Fuel Handling Building Exhaust D".t Upstream i
of Filter.
j Sensi tivity:
3.55 X 10+7 CPM / Ci/cc (Xe-133)
I HIGH ALARM SETPOINT:
40,000 CPM Basis:
Alarm will activate if the Tech Spec limit of 1.2 X 10+5 3
3 /sec for gross gaseous activity and a meter error factor of 75%.
-7 3 X 10 pCi/cc.
For this calculation we will use a 90% overr.ll collection efficiency for the filter.
Ref:
TMI - Unit 2 Tech Specifications, i
Appendix B, Section 2.3.2.
Calculation:
(1.2 X 10+5 g /sec)(3.0 X 10-7 uCi/cc)(3.55 X 10+7 CPM /uCi/cc)(0.75) 3 (2.66 X 10+l M /sec)(0.90) 3
= 4.0 X 10+4 CPM ALERT ALAPli SETPOINT:
20,000 CPM Basis:
50% of high alarm setpoint.
Calcula tion :
(4.0 X 10+4 CPM) (0.5) = 2.0 X 10+4 CPM 7
'5 33.0 187 118
. _. 7
+ - - - -
w--.
"5
2105-1.12 Revision 5 06/20/78 HP-R-2218 (Particulate)
Location:
Fuel Handling Building Exhaust Duct Downstream of Filter
- ensitivity
5.3 X 10+11 CPM / Ci/cc (SR-90) 0 8.5 SCFM, I in/hr.
HIGH ALARM SETPOINT:
7000 CPM Basis:
Alarm will activate if 50% of the Tech Spec release rate limit of 0.63 uCi/Sec at an exhaust flowrate of 38,000 CPM and a meter factor of 75%.
In order to maintain isokinetic
. sampling, the sampler flowrate will be maintained at 5.5 scfm.
Calculation:
(0.50)(0.63 uCi/Sec)(5.3 X 10+11 CPM /uci/cc)(0.75)(8.5 scf (2.66 X10+7 Ci/Sec)(5.5 scfm)
NOTE:
Since there is no meter gradua' tion at this point, adjust the setpoint to 7.0 X 10+3 CPM.
ALERT ALARM SETPOINT:
3500 CPM Basis:
50% of high alarm setpoint Calculation:
(7.0 X 10+3 CPM)(0.5) = 3.5 X 10+3 CPM.
7i 187 119
.=
34.0
~
- - ~
4
=
2105-1.12 Revision 5
{
06/20/78 HP-R-221B_(Iodine)
Location:
Fuel Handling Building Exhaust Duct Downstream of Filter.
Sensitivity:
3.895 X 10+12 CPM / min /pci/cc (I-131) assuming a 77% collection efficiency after 8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br /> at 8.5 SCFM.
M H ALAF.M SETPOINT:
200,000 CPM Basis:
Alarm will activate in 10 minutes if 50%
of the Tech Spec release rate limit of 0.30 uCi/sec is exceeded for 7 days assuming a
+ 8.0% error due (-8.0% most conservative) to flow variations and a meter error factor of 75%.
Ref:
TMI-2 Tech Spec, Appendix B.
Calculation:
(0.5)(0.30 uCi/sec)(3.895 X 10+12 CPM / min /uCi/cc)(0.75-0.08)(10 min)(8 5 (2.66 X 10+7 cc/sec) (5.5 scfm)
= 2.27 X 10+5 CPM NOTE:
Since there is no meter graduation at this pcint adjust the setpoint to 2.0 X 10+5 CPM.
ALERT ALARM SETPOINT:
100,000 CPM Basis:
50% of high alarm setpoint Calculation:
(2.0 X 10+5 CPM) (0.5) = 1.0 X 10+5CPM 7i 35.0 187 120
,m.
e,~,
2105-1.12 Revision 4 05/04/78 HP-R-221B (Gas)
Location:
Fuel Handling Building Exhaust Dust Downstream of Filter.
Sensitivity:
3.55 X 10+7 CPM / Ci/cc (Xe-133)
HIGH ALAR'i SETPOIf4T:
30,000 CPM Basis:
Alarm will activate if the Tech Spec limit of 1.2 X 10+5 3
g /sec for gross gaseous activity and a meter error factor of 75%.
-7 3 X 10 Ci/cc.
Ref:
Appendix B, Section 2.3.2.
Calculation:
(1.2 X 10+5 g /sec)(3.0 X 10 uCi/cc)(3.55 X 10+7 CPM /uCi/cc)(0.75) 3
~7 (2.66 X 10*I M /sec) 3
= 3.60 X 10+4 CPM T10TE:
Since there is no meter graduation at this point adjust the setpoint to 3.0 X 10+4 CPM.
ALERT ALARM SETPOINT:
15,000 CPM Sasis:
50% of high alarm setpoint.
Calculation:
(0.5)(3.0 X 10+4) = 1.5 X 10+4 CPM.
36.0 3i 187 121
2105-1.12 Revision 5 06/20/78 HP-R-222 (Particulate)
Location:
Auxiliary Building Purge Air Exhaust Upstream of Filter Sensitivity:
5.3 X 10+11 CPM /uci/cc (Sr-90) @ 8.5 SCFM,1 in/hr.
HIGH ALARM SETPO M :
5,000 CPM Basis:
Alarm will activate if 50% of the Tech Spec release rate limit of 0.63 pCi/sec at an exhaust flowrate of 50,715 CFM and a meter error factor of 75%.
For this calculation we wili use a 90%
overall collection efficiency for the filter.
In order to maintain isokinetic sampling when AH-V177 is selected CPEft, the sampler flowrate will be maintained at 6.0 scfm.
Calculation:
(0.50)(0.63 uCi/sec)(5.3 X 10+11 CPM /uCi/cc)(0.75)(8.5 scfm)
= 5053 CPM (3.9 X 10+7 cc/sec) (0.90)(6.0 scfm) 310TE:
Since there is no meter graduation at this point, adjust the setpoint to the next lower meter graduation, 5.0 X 10+3 CPM.
ALERT ALARM SETPOIflT:
2500 CPM Basis:
50% of High Alarm Setpoint Calculation:
5.0 X 10+3 CPM) (0.5) = 2.5 X 10+3 CPM 7i
\\
\\
\\.,
37.0-lg [
l,_
}
2105-1.12 Revision 5 06/20/78 HP-R-222 (Iodine)
Location:
Auxiliary Building Purge Air Exhaust Upstream of Filter 3.895 X 10+12 CPM / min /pCi/cc (I-131) assuming Sensitivity:
a 77% collection efficiency af ter 8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br /> at 8.5 SCFM.
HIGH ALARM SETPOINT:
150,000 CPM Alarm will activate in 10 minutes if 50% of Basis:
the Tech Spec release rate limit of 0.30 pCi/sec i
is exceeded for 7 days assuming a + 8.0% error due (-8.0% most conservative) to flow variations and a meter error factor of 75%.
For this calculation we will use a 90% overall collection efficiency for the filter.
In order to maintain isokinetic sampling when AH-V177 is selected, CPEN, the sampler flowrate will be maintained at 6.0 scfm.
Ref:
TMI-2 Tech Spec, Appendix B.
Calculation:
(0.5)(0.3 uCi/sec)(3.895 X 10+12 CPM / min /uci/cc)(0.
3.9 X 10+7 cc/sec (0.9)(6.0 scfm) 5
= 1.57 X 10 CPM ALERT ALARM SETPOINT:
75,000 CPM Basis:
50% of High Alarm Setpoint Calculation:
(1.5 X 10+5 CPM)(0.5) = 7.5 X 10+4 CPM Ii 0f l 38.0 ~ .e
2105-1.12 Revision 4 05/04/78 hP-R-222 (Gas) Auxiliary Building Purge Air Exhaust Upstream Location: of Filter N 3.55 X 10*7 /uCi/cc (Xe-133) Sensitivity: HIGH ALARM SETPOINT: 20,000 CPM Alarm will activate if the Tech Spec limit of Basis: 3 1.2 X 10+5 g /sec for gross gaseous activity and a meter error factor of 75%. Xe-133 MPC is 3 X 10 Ci/cc. For this calculation we will -7 use a 90% overall collection ef ficiency for the filter. Ref: 10 CFR Part 20, Appendix B. TMI-2 Tech Spec, Appendix B, Section 2.3.2. Calculation: uCi/cc)(3.55 X 10+7 CPM /uCi/cc)(0.751 3 -7 (1.2 X 10+5 M /sec)(3.0 X 10 3 (3.9 X 10 M /sec) (0.90) = 2.72 X 10+4 CPM tiOTE: S '. 1ce there is no meter graduation at this point, adjust the setpoint to 2.0 X 10*4 CPM. ALERT ALARM SETPOItiT: Ba sis: 50% of High Alarm Setpoint. (0.5) (2.0 X 10+4) = 1.0 X 10+4 CPM). Calculation: =l 39.0 187 124 ^ N***N ,e 2
2105-1.12 i Revision 4 05/04/78 HP-R-223 (Particulate) ~ Location: Spent Fuel Area (Moveable Monitor) I Sensitivity: 5.3 x 10 CPM /pCi/cc at 1 in/Hr filter movement and 8.5 SCFM (SR-90) High Alarm Setooint: 1,100 CPM -9 Basis: MFC for restricted areas of 3 x 10 pCi/cc for a unknown mixture of isotopes. Alarm will activate with MPC condition, assuming 75% meter error factor. a Ref: 10CFR Part 20, Appendix B. Calculation: 3 x 10-9 pCi/cc x 5.3 x 10' CPM /uCi/cc x.75 = 1192.5 CPM. Since there is no meter graduation at this point, adjust setpoint to 1000 CPM. Alert Setooint: 500 CPM Basis: 50% of high alarm setpoint. 8 7 i 40.0 187 125 O
2105-1.12 Revision 4 5 05/04/78 HP-R-223 (Iodine) s' Location: Spent Fuel Area (Moveable Monitor) Sensitivity: 3.895 X 10+I2 P"/ min uCi/cc (I-131) assuming a 77% collection efficiency at 8.5 SCFM after 8 hours. HIGH ALARM SETPOINT: 230,000 CPM ~9 Easis: MPC for restricted areas of 9 X 1C pCi/cc for I-131 alarm will activate in 10 minutes with MPCa condition assuming a + 8.0% error due to flow variations and a 75% meter error factor. Ref: 10 CFR Part 20, Appendix B. Calculation: (9 X 10-9 pCi/cc)(3.895 X 10+12 UM/ min pCi/cc)(10 min)(0.75-0.08) = 2.349 X 10+5 CPM NOTE: Since there is no meter graduation at this point, adjust the setpoint to 2.3 X 10+5 CPM. ALERT ALARM SETPOINT: 115,000 CPM Basis: 50% of High Alarm Setpoint 5 5 Calculation: (2.3 X 10 CPM)(0.5) = 1.15 X 10 CPM. 41.0 [g
2105-1.12 5 Revision 4 05/04/78 HP-R-223 (Gas) Location: Spent Fuel Area (Moveable Monitor). Sensjtivity: 3.55 x 107 CPM /uti/cc (Xe-133). High Alarm Setcoint: 260 CPM Basis: MPCa for unrestricted areas of 1 x 10-5 Ci/cc for Xe-133. Assumes meter error factor of 75%. Calculation: (1 x 10-5 Ci/cc) (3.55 x 10 CPM /uCi/cc) (.75) = 7 266.25 CPM. Since there is no meter graduation at this point, adjust setpoint to next lower tens CPM, 260 CPM. Alert Setooint: 130 CPM. Basis: 50% of high alarm setpoint. 7 1 42.0 137 127 <= e**- =
- m
2105-1.12 i Revision 4 05/04/78 HP-R-224 (Particulate) Location: Auxiliary Building (Moveable Monitor) Sensitivi ty: 5.3 x 10+IICPM/uCi/cc at 1 in/Hr filter movement and 8.5 SCFM (SR-90) High Alarm Setcoint: 1100 CPM -9 Basis: MPC for restricted areas of 3 x 10 pCi/cc for a unknown mixture of isotopes. Alarm will activate with MPC condition, assuming 75% meter error factor. a Ref: 10CFR Part 20, *ppendix B. -9 II Calculation: (3 x 10 pCi/cc) (5.3 x 10 CPM /uCi/cc) (.75) = 1192.5 CPM. Since there is no meter graduation at this point, adjust setpoint to next lower hundreds CPM, 1100 CPM. Alert Setcoint: 550 CPM Basis: 50% of high alarm setpoint. i 43.0 187 123 e .=*m =. -. = w ' - =
- ** *"""~*
- hhNh*
2105-1.12 Revision 4 05/04/78 HP-R-224 (Iodine) l Location: Auxiliary Bu.ilding (Moveable Monitor) Sensitivity: 3.895 X 10+12 CPM / min pCi/cc (I-131) assuming a 77% collection efficiency at 8.5 SCFM after 8 hours. HIGH ALARM SETPOINT: 230,000 CPM -9 Basis: MPC for restricted areas of 9 X 10 pCi/cc for 3 I-131 alarm will activate in 10 minutes with MPC a condition assuming a i 8.0*.' error due to flow variations and a 75% meter error factor. Ref: 10 CFR Part 20, Appendix B. Calculation: (9 X 10 pCi/cc)(3.89:5 X 10+12 CPM / min pCi/cc)(10 min)(0.75-0.08) -9 = 2.349 X 10+5 CPM NOTE: Since there is no meter graduation at this point, adjust the setpoint to 2.3 X 10+5 CPM. ALERT ALARM SETPOINT: 115,000 CPM Basis: 50% of High Alarm Setpoint 5 5 Calculation: (2.3 X 10 CPM)(0.5) = 1.15 X 10 gpg, 7i l87 129
~ 2105 1.12 Revision 4 05/04/78 HP-R-224 (Gas) Location: Auxiliary Building (Moveable Moritor). 7 Sensitivity: 3.55 x 10 CPM /pci/cc (Xe-133). High Alarm Setooint: 260 CPM MPCa for unrestricted areas of 1 x 10-5 uCi/cc for Basis: Xe-133. Assumes meter error factor of 75%. -5 Calculation: (1 x 10 uCi/cc) (3.5 x 10 CPM /uCi/cc) (.75) = 262.5 CPM. Since there is no neter graduation at this point, round setpoint to next lower tens CPM, 260. Alert Setcoint: 130 CPM. Basis: 50% of high alarm setpoint. 7i 45.0 f]Q 6 e ._w,- -m-. - ~ ~ -
.~ 2105-1.12 Revision 4 05/04/78 HP-R-225 (Particulate) Location: Reactor Building Purge Exhaust A Sensitivity: 5l3 X 10+11 CPM /uCi/cc (SR-90 0 8.5 SCFM,1 in/hr. HIGH ALARM SETPOINT: 10,000 CPM Basis: Alarm will activate if 50% of the Tech Spec release rate limit of 0.53 pCi/sec at an exhaust flowrate of 25,000 CFM and a meter error factor of 75%. Calculation: (0.50)(0.63 uCi/cc)(5 3 X 10+11 CPM /uci/cc)(0.75) = 10,600.0 CPM (1.18 X 10*7 cc/sec) NOTE: Since there is no meter graduation at this point, i adjus.t the setpoint to the next lower meter graduation, 1.0 X 10+4 CPM. ALERT ALARM SETPOINT: S000 CPM Basis: 50% of High Alarm Setpoint Calculation: (1.0 X 10+4 CPM)(0.5) = 5.0 X 10+3CPM 46.0 187 137 .1.
2105-1.12 Revision 4 05/04/78 HP-R-225 (Iodine) location: Reactor Building Purge Exhaust A ~ . Sensitivity: 3.895 X 10+12 CPM / min-pCi/cc (I-131) assuming a 77% collection efficiency after 8 hours at 8.5 SCFM. HIGH ALARM SETPOINT: 200,000 CPM Basis: Alarm will activate in 10 minutes if 50% of the Tech Spec release rate limit of 0.3 pCi/sec is exceeded for 7 days assuming a + 8.0 % error due (-8.0% most conservative) to flow variations and a meter error factor of 75%. Ref: TMI-2 Tech Spec, Appendix B. Calculation: (0.5)(0.3 uCi/sec)(3.895 X 10+12 UM/ min-uCi/cc)(0.75-0.08)(10 min) 1.18 X 10+7cc/sec 3.3 X 10+5 CPM = NOTE: Since there is no meter graduation at this point, adjust the setpoint to 2.0 X 10+5 CPM. ALERT ALARM SETPOINT: 100,000 CPM Basis: 50% of High Alarm Setpoint Calculation: (2.0 X 10+5 CPM)(0.5) = 1.0 X 10+5 CPM 7i 47.0 187 13p ~
2105-1.12 Revision 4 05/04/78 I HP-R-225 (Gas) Location: Reactor Building Purge Exhaust A 3.55 X 10+7 CPM /uCi/cc (Xe-133) Sensitivity: HIGH ALARM SETPOIrlT: 80,000 CPM Alarm will activate if the Tech Spec limit of Basis: 1.2 X 10+5 3 3 /sec for gross gaseous activity and a meter error factor of 75% Xe-133 MPC is -7 3 X 10 uCi/cc. Ref: 10 CFR Part 20, Appendix B. TMI-2 Tech Specs, Appendix B, Section 2.3.E.a. Calculation: uCi/cc)(3.55 X 10+7 CP:i/uci/cc)(0.75) 3 -7 (1.2 X 10+5 g,'sec)(3.0 X 10 1.18 X 10 M /sec)
- 4 8.12 X 10 CPM
= Since there is no meter graduation at this point, fiOTE: adjust the setpoint to 8.0 X 10+' CPM. ALERT ALARM SETPOINT: 40,000 50'.' of High Alarm Setpoint Basis: (0,5)(8.0 X 10*4) = 4.0 X 10+I4 CPM Calculation: 7 Y 48.0 187_133 ~
- =
5
2105-1.12 Revision 4 05/04/78 ~ HP-R-226 (Particulate) Location: Reactor Building Purge Exhaust B Sensitivity: 5.3 X 10+11 CPM / Ci/cc (SR-90 0 8.5 SCFM, 1 in/hr. HIGH ALARM SETPOINT: 10,000 CPM Basis: Alarm will activate if 50% of the Tech Spec release rate limit of 0.63 pCi/sec at an exhaust flowrate of 56,450 CFM and a meter error factor of 75%. Calculation: (0.50)(0.63 uCi/cc)(5.3 X 10+11 CPM /uCi/cc)(0.75) = 10,600.0 CPM (1.18 X 10+7 cc/sec) NOTE: Since there is no meter graduation at this point, i adjust the setpoint to the next lower meter graduation, 1.0 X 10+4 CPM. ALERT ALARM SETPOINT: 5000 CPM Basis: 50% of High Alarm Setpoint Calculation: (1.0 X 10+4 CPM)(0.5) = 5.0 X 10+3 CPM 7 1 49.0 187 134
2105-1.12 Revision 4 05/04/78 HP-R-226 (Iodine) Lccation: Reactor Building Purge Exhaust B Sensitivity: 3.895 X 10+12 W/ min-uCi/cc (I-131) assuming a 77% collection efficie ny after 8 hours at 8.5 SCFM. HIGH ALARM SETPOIt4T: 200,000 CPM Basis: Alarm will activate in 10 minutes if 50% of the Tech Spec release rate limit of 0.3 pCi/sec is exceeded for 7 days assuming a + 8.0 % error due (-8.0% most conservative) to flow variations and a meter error factor of 75%. Ref: TMI-2 Tech Spec, Appendix B. Calculation: (0.5)(0.3 uCi/sec)(3.895 X 10+I2 / min-uCi/cc)(0.75-0.08)(l'0 min) 1.18 X 10*7cc/sec 3.3 X 10+5 CPM = NOTE: Since there is no meter graduation at this point, adjust the setpoint to 2.0 X 10+5 CPM. ALERT ALARM SETPOINT: 100,000 CPM Basis: 50% of High Alarm Setpoint Calculation: (2.0 X 10+5 CPM)(0.5) = 1.0 X 10+5 CPM r 7 'i 50.0 187 135 j '--~ __._
~ 2105-1.12 i Revision 4 05/04/78 ~ HP-R-226 (Gas) Location: Reac. tor Building Purge Exhaust B Sensitivity: 3.55 X 10+7 CPM /uCi/cc (Xe-133) HIGH ALARM SETPOINT: 80,000 CPM Sasis: Alarm will activate if the Tech Spec limit of 1.2 X 10+5 3 g /sec for gross gaseous activity and a meter error factor of 75% Xe-133 MPC is -7 3 X 10 Ci/cc. Ref: 10 CFR Part 20, Appendix B. TMI-2 Tech Specs, Appendix B, Section 2.3.2.a. Calculation: (1. 2 X 10+5 g /sec)(3.0 X 10 uCi/cc)(3.55 X 10+7 CPM /uCi/cc)(0.75) 3 ~7 3 1.18 X 10*l M /sec) 8.12 X 10+4 CPM = NOTE: Since there is no meter graduation at this point, adjust the setpoint to 8.0 X 10+4 CPM. ALERT ALARM SETPOINT: 40,000 Basis: 50% of High Alarm Setpoint (0.5)(8.0 X 10+4) = 4.0 X 10+I4CPM Calculation: i 51.0 I87 y3g
~ 2105-1.12 { Revision 4 05/04/78 HP-R-227 (Particulate) location: Reactor Building Sensitivity: 5.3 X 10+11 CPM /uCi/cc (Sr190) 0 8.5 SCTM,1 in/hr HIGH ALARM SETPOINT_: 5 X 504 CPM Basis: Alarm will activate at 25% of the equilibrium concentration of Kr-83 and Rb-88 in the Reactor Building due to a 1 gpm reactor coolant leak at 0.1% failed fuel. Reactor Building Volume: 10 5.95 X 10 , Reactor Coolant Kr-88 activity:.28 pCi/cc. Kr-88 half-life: 2.8 hours. Fraction of Rb-88 filterables: 10% (due to unknown particle size). Calculation: Production rate of Kr-88 at equilibrium: 4 1 gal / min X 63.3 cc/sec_ X 2.8 pCi/cc X 3.7 X 10 atoms /sec/pCi gal / min 9 X 2.8 hours X 3600 sec/hr = 9. 54 X 10 atoms /sec .693 At equilibrium production of Kr-88 = decay of Kr-88 = production of Rb decay of Rb-88. 9 4 5 9.54 X 10 atoms /sec + 3.7 X 10 atoms /sec/uCi = 2.58 X 10 pCu 10 -6 2.58 X.10! pCi-/E.95 X 10 cc = 4.336 X 10 Ci/cc -6 -6 25% of 1.08 X 10 Ci/cc = 1.08 X 10 pCi/cc 10% of 1.08 X 10-6 Ci/cc = 1.08. X 10-7 pCi/cc 4 1.08 X 10-7 pCi/cc X 5.3 X 10+11 CPM /pCi/cc = 5.274 X 10 CPM. NOTE: Since there is no meter graduation at this point, 4 j adjust setpoint to 5.0 X 10 CPM. 4 j ALERT SETPOINT: 2.5 X 10 CPM Basis: 50% of High Alarm Setpoint (Changing next lower meter graduation. 0f f}l 52.0 ?
2105-1.12 ~ Revision 4 05/04/78 HP-R-227 (Iodine) location: Reactor Building Sensitivity: 5.83 X 10 / min-pCi/cc' (I-131) a 98", collection CPM efficiency at 8.5 SCFM after 8 hours. 3 HIGH ALARM SETPOINT: 5 X 10 CPM Basis: Alarm will activate within four hours after the start of a 2 GPM reactor coolant leak rate with 0.1% 10 failed fuel. Reactor Building Volume: 5.95 X 10 cc. Reactor Coolant Iodine Activity: .33 uCi/cc. Fract' ion of Iodine available for collection: 82% Iodine Collection Efficiency: 78% Average Concentration: 50% of Maximum Concentration. Meter error factor: 75%. Ref: TMI-l FSAR, Section II I Calculation: 3 2 gal / min X 3.8 X 10 cc/ gal X 1 min X.33 pCi/cc X.75 X.78 ll 10 X.82 X.50 X 1 min X 5.83 X 10 CPM / min /uCi/cc/5.95 X 10 cc = 5894 CPM. 3 Choosing next lower meter graduation: 5 X 10 CPM. 3 ALERT SETPOINT: 2.0 X 10 CPM Basis: 1/2 of High Alarm Setpoint (choosing next lower meter graduation. 4 1 53.0 l l l 187 13g i
2105-1.12 Revision 4 05/04/78 HP-R-227 (Os) location: Reactor Building 7 Sensitivity: 3.55 X 10 CP.1/uCi/cc (Xe-133) 4 HIGH ALARM SETPOINT: 2 X 10 CPM Basis: Alarm will activate within four hours after the start of a 2 GPM reactor coolant leak, assuming 0.1% 10 failed fuel. Volume of Reactor Building: 5.95 X 10 cc. Reactor Coolant Xe-133 activity: 26 uCi/cc. Meter error factor: 75%. Ref: TMI-l FSAR, Section II. Calculation: 3 2 gal /mi, X 3.8 X 10 cc/ gal X 240 min X 26 uCi/cc X 75% X 3.55 7 10 4 X 10 CF s/uCi/cc + 5.95 X 10 cc = 2.12 X 10 CPM Choosing next lower meter graduation: 2 X 10 CPM. 4 ALERT SETPOINT: 1 X 10 CPM Basis: 50% of High Alarm Setpoint m M 7 54.0 \\ \\ t 139_...i 187
2105-1.12 Revision 5 06/20/78 HP-R-228 (Particulate) Location: Auxiliary Building Furge Air Exhaust Downstream of Filter 5.3 X 10+11 CPM /uCi/cc (Sr-90) 0 8.5 SCFM, 1 in/hr. Sensitivity: HIGH ALARM SETPOINT: 4000 CPM Alarm will activate if 50% of the Tech Spec Sasis: release rate limit of 0.63 uCi/sec at an exhaust flowcate of 67,000 CFM and a meter error factor of 755. In order to maintain isckinetic sampling sampler flowrate will be maintained at 6.5 scfm. Calculation: (0.50)(0.63 uCi/sec)(5.3 X 10+11 CPM /uCi/cc)(0.75)(8.5scfm), 4198 (3.9 X 10+7 cc/sec)(6.5 scfm) NOTE: Since there is no meter graduation at this point, adjust the setpoint to 4.0 X 10+3 CFM. ALERT ALARM SETPOINT_: 2000 CPM Easis: 50% of High Alarm Setpoint l 3 Calculation (4.0 X 10+3 CPM) (0.5) = 2.0 X 10 gpg 7i 187 14g 55.0 O
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2105-1.12 Revision 5 C6/20/78 HP-R-228_(Iodine) Reactor Building Purge Exhaust Location: 3.895 X 10+12 CPM / in/uCi/cc (I-131) assuming Sensitivi ty: a 77% collection efficiency after 8 hours at 8.5 SCFM. HIGH ALARM SETPOINT_: 100,000 CPM Alarm will activate in 10 minutes if 50% of Basis: the Tech Spec release rate limit of 0.30 uCi/sec is exceeded for 7 days assuming a + 8.0% error due (-8.0% most conservative) to ficw variations and a meter error factor of 75%. In order to main-tain isokinetic sampling, the sampler flowrate will be maintained at 6.5 scfm. Ref: TMI-2 Tech Spec, Appendix B. Calculation: (0.5)(0.3 uCi/sec)(3.895 X 10+12 CPM / min /uCi/cc)(0.75-0.03)(1 I (3.9 X 10+7 cc/sec)(6.5 scfm) = 1. 3 X 10+5 CPM ALERT ALARM SETPOINT: 50,000 CPM Basis: 50% of High Alarm Setpoint
- 4 (1.0 X 10+5 CPM)(0.5) = 5 X 10 CPM Calculation:
i f 56.0 - ~ " e -~ -e--
2105-1.12 i Revision 4 05/04/78 I _ i HP-R-228 (Gas) location: Reactor Building Purge Exh5ust Sensitivity: 3.55 X 10+7 CPM /uCi/cc (Xe-133) HIGH ALARM SETP0ItiT-20.000 CPM Basis: Alarm will activate if the Tech Spec limit of 1.2 X 10+5 3g /sec for gross gaseous activity and a meter error factor of 75%. Xe-133 MPC is 3 X 10-7 uCi/cc. Ref: 10 CFR Part 20, Appendix B. TMI-2 Tech Spec, Appendix B, Section 2.3.2. Calculation: ,1.2 X 10+5 M /sec)(3.0 X 10 uCi/cc)(3.55 X 10+7 CPM /uCi/cc)(0.75) 3 ~7 ( i 3 (3.9 X 10+I fi/sec) = 2.45 X 10+4 CPM t:0TE: Since there is no meter graduation at this point, adjust the setpoint to 2.0 X 10+4 CPM. ALERT ALARM SETPOItlT: Basis: 50". of High Alarm Setpoint. Calculation: (0.5) (2.0 X 10+4) = 1.0 X 10+4 t.'M ). 7 57.0 187 in
2105-1.12 Revision 4 05/04/78 I HP-R-229 (Particulate) Location: Reactor Building Hydrogen Purge Exhaust +11 CPM Sensi tivity: 5.3 X 10 /uCi/cc (SR-90) 0 8.5 SCFM, 1 in/hr. HIGH ALARM SETPOINT: 160,000 CFM Basis: Alam will activate if 50% of the Tech Spec release rate limit of 0.63 pCi/Sec at an exhaust ficwrate of 150 CFM and a meter factor of 75%. Calculation: (0.50)(0.63 uCi/Sec)(5.3 X 10+11 CFM/uCi/cc)(0.75) = 1.768 X 10+5 C (7.08 X 10*4 cc/sec) NOTE: Since there is no meter gracuation at this point, i adjust the setpoint to the next meter graduation, 1.6 X 10+5 CPM. ALERT ALARM SETPOINT: 80,C00 CPM Basis: 50% of high alarm setpoint Calculation: (1.6 X 10+5 CPM)(0.5) = 8 X 10+4 CPM. 7 '5 \\ 0 lk] 58.0 ~ \\ ____i__..-_
~ 2105-1.12 Revision 4 ~ 05/04/78 HP-R-229 (Iodine) Location: Reactor Building Hydrogen Purge Exhaust Sensitivity: 3.895 X 10+12 CPM / min /uCi/cc (I-131) assuming a 77'.' collection efficiency after 8 hours at 8.5 SCFM. HIGH ALARM SETPOIflT: 400,000 CPM Basis: Alarm will activate in 1 minute if 0.5% of the Tech Spec release rate limit of 0.30 pCi/sec is exceeded for 7 days assuming a + 8.0% error due (-8.0% most conservative) co flow variations ard a meter error factor of 75%. Ref: TMI-2 Tech Spec, Appendix B, Section 2.3.2.b Calculation: (0.005)(0.30 uCi/sec)(3.895 X 10+I2 CPM / min /uci/cc)(0.75-0.08)(1 min) 7.08 X 10*4 cc/sec = 5.5 X 10+5 CPM t10TE: Since there is no meter graduation at this point adjust the setpoint to 4.0 X 10+5 CPM. ALERT ALARM SETPOIitT: 200,000 CPM Basis: 50% of high alarm setpoint Calculation: (4.0 X 10+5 CPM)(0.5) = 2.0 X 10+4CPM 7 '5 59.0 187 144 ~
~ 2105-1.12 ReJision 4 b5/04/78 HP-R-229 (Gas) Location: Reactor Building Hydrogen. Purge Exhaust Sensitivity: 3.55 X 10+7 CPM / Ci/cc (Xe-133) HIGH ALARM SETPOIt1T: 120,000 CPM Basis: Alarm will activate if 1% of the Tech Spec limit of 1.2 X 10+5 g /sec for gross gaseous activity and 3 a meter error factor cf 75%. Xe-133 MPC is -7 3 X 10 uCi/cc. Ref: 10 CFR Part 20, Appendix B. TMI-2 Tech Spec, Appendix a, Section 2.3.2.a Calculation: (0.01 )(1. 2 X 10+5 M /sec)(3.0 X 10 uCi/cc)(3.55 X 10+7 CPM /uCi/cc)(0.75) 3 -7 -2 3 (7.08 X 10 M /sec) = 1.35 X 10+5 CPM tiOTE: Since there is no meter graduation at this point adjust the setpoint to 1.2 X 10+5 CPM. ALERT ALARM SETPOIrlT: 60,000 CPM Basis: 50% of high alarm setpoint. Calculation: (0.5)(1.2 X 10+5 CPM) = 6.0 X 10+5 CPM. 7i 60.0 187 145 4 9
2105-1.12 E Revision 4 05/04/78 ~ I WDG-R-1480_(Gas) Location: Waste Gas Discharge Sensitivity: 3.55 X 10+7 CPM /uCi/cc (Xe-133) HIGH ALARM SET"~LijE: 4.0 X 10+5 CPM 3 Tech Spec Release Rate Limit of 2.4 X 10*3 M /sec Sasis: for gas decay tanks with less than 45 days hold up time. "aximum design flow rate of 100 SCFM -2 3 (4.72 X 10 g /sec) is assumed. A meter error factor of 75% is assumed, and the MPC or e-133 a -7 is 3 X 10 pCi/cc. Ref: 10 CRF Part 20, Appendix B TMI-2 Tech Spec, Appendix B, 1 Specification 2.3.2.e Calculation: 3 /sec)(3.0 X 10-7 uCi/cc)(3.55 X 10+7 CPM /uCi/cc)(0.75) 3 (2.4 X 10+3 -2 3 (4.72 X 10 g /sec) 5 = 4.06 X 10 CPM NOTE: Since there is no meter graduation at this point, adjust the setpoint to the next lower meter graduation, 4.0 X 10 CPM. 5 ALERT ALARM SETPOINT: 2.0 X 10 CPM Basis: 50% of High Alarm Setpoint 1 b 61.0 i 187 146 I e e . _ - - - - - - -. - ~ ~ _,.....- --**.w.w.
~ 2105-1.12 Revision 3 05/04/78 WDG-R-1485 (Gas) Location: Waste Gas Decay Tank 1A Discharge Sensitivity: 3.55 X 10+7 CPM /uCi/cc (Xe-133) 5 HIGH ALARM SETPOINT: 3.0 X 10 CPM. Basis: The Waste Gas Filter, WDG-F-1 has a collection efficiency of 99.87% for particles larger than 0.3 micron and 99.9% for radioactive iodine in air. For this calculation we will use a 90% overall collection efficiency for the filter. The Tech Spec Release Rate Limit of 2.4 X 10+3 3 M /sec for gas decay tanks with less than 45 days holdup time. Maximum design ficw rate of -100 SCFM (4.72 X 10-2 M /sec is assumed. A meter 3 error factor of 75% is assumed and the MPC for 3 Xe-133 is 3.0 X 10-7 pCi/cc. Ref: 10 CFR'Part 20, Appendix B. TMI-2 Tech Specs, Appendix B, Specification 2.3.2.e Basis of WDG-R-1480 setpoint Calculation: (2.4 X 10+ M /sec)(3.0 X 10-7uCi/cc) (3.55 X 10+7 CPM /uCi/cc)(0.75)(0.9) 3 (4.72 X 10-2 g /sec) 3 = 3.65 X 10+5 CPM NOTE: Since there is no meter graduation at this point, adjust 5 lower meter graduation at 3.0 X 10 CPM. 5 5 ALERT ALARM SETPOINT: 1.5 X 10 CPM Basis: 50% of High Alarm Setpoint 5 5 Calculation: (3.0 X 10 CPM)(0.50) = 1.5 X 10 CPM 187 147 67.0 _ _ ~
~ 2105-1.12 Revision 4 05/04/78 WCG-R-1486 (Gas) Waste Gas Decay Tank 1B Discharge Location: 3.55 X 10+7 CPM / Ci/cc (Xe-133) Sensitivity: 5 HIGH ALAPJ4 SETPOIt4T: 3.0 X 10 CFM. The Waste Gas Filter, WD3-F-1 has a collection Basis: efficiency of 99.87% for particles larger than 0.3 micron and 99.9% for radioactive iodine in For this calculation we will use a 90% air. i overall collection efficiency for the filter. The Tech Spec Release Rate Limit of 2.4 X 10+3 M /sec for gas decay tanks with less than 45 days 3 Maximum design flow rate of 100 holdup time. -2 3 SCFM (4.72 X 10 3 /sec is assumed. A meter I" error factor of 75% is assumed and the MPC a -7 Xe-133 is 3.0 X 10 Ci/cc. Ref: 10 CFR Part 20, Appendix B. TMI-2 Tech Specs, Appendix B, Specification 2.3.2.e Basis of WDG-R-1480 setpoint Calculation: 3 /sec)(3.0 X 10~7uci/cc) (3.55 X 10+7 CPM /uCi/cc)(0.7 3 _(2.4 X 10+3 -2 3 (4.72 X 10 g/sec) = 3.65 X 10+5 CPM Since there is no meter graduation at this pi nt, adjust tiOTE: 5 CPM. lower meter graduation at 3.0 X 10 7 5 ALERT ALARM SETP01i1T: 1.5 X 10 CPM 50% of High Alarm Setpoint Basis: 5 5 Calculation: (3.0 X 10 CPM)(0.50) = 1.5 X 10 CPM 137 143 63.0 f
2105-1.12 5 Revision 4 05/04/78 VA-R-748 (Gas) Location: Condenser Vacuum Pump Exhaust
- 3. 55 X 10+
"/pCi/cc (Xe-133) Sensitivity: i HIGH ALARM SETPOINT_: 2000 CPM Alarm will activate at a release rate of 0.024 Basis: pCi/sec of I-131 (Quarterly average Tech Spec Limit requiring a 30 day letter to the "RC). Xe-133 to I-131 ratio with failed fuel assumed to be 80, vacuum pump flow rate is 1.83 X 10 cc/sec and a neter error factor of 75% is included. Ref: TMI-2 Tech Spec, Appendix B, Specification 2.3.2.h. Calculation: (0.024 uCi/sec)(80)(3.55 X 10+7 CPM /uCi/cc)(0.75) 4 (1.88 X 10 cc/sec) = 2719 CPM NOTE: Since there is no meter graduation at this point, adjust the setpoint to the next lo ser meter graduation, 2000 CPM. ALERT ALARM SETPOINT: 1000 CPM Basis: 50% of High Alarm Setpoint T 5 64.0 I87 149 =
2105-1.12 { Revision 4 05/04/78 MU-R-720_ Primary Coolant Letdown (Gross) Location: Makeup Tank Corridor 8 CPM Sensitivity: 1.02 X 10 / Ci/cc 5 HIGH ALARM SETPOINT: 5.0 X 10 CPM Basis: Total activity of primary coolant at 1% failed fuel is 360 uCi/cc. 8 10 Calculation: (360 pCi/cc)(1.02 X 10 CPM /uCi/cc) = 3.67 X 10 CPM ETE_: Since this is above the range of the r.cnitor, conservatively set the setpoint 5 at 5.0 X 10 gpg, 5 ALERT ALARM SETPOINT: 2.5 X 10 CPM. ~ Basis: Based on Tech Spec Limit of 130 E ui/cc which will insure that a whole body <cee of les ti,aa 0.5 REM will occur at the site boundary should a steam generator tube rupture accident occur (assuming E = 1 Mev) 8 CPM 10 Calculation: { ISO uCi/cc)(1.02 X 10 /uCi/cc) = 1.32 X 10 CPM NOTE: Since this 's above the range of the monitor, conservatively set the setpoint 5 at 2.5 X 10 CPM. 7 i 187 159 65.0 '~~ ** ..e ~, ? we... . -. _.. _ _ = _,. **^.. ____=*j.
2105-1.12 ~ Revision 4 05/04/78 i MU-R-720 Primary Coolant Letdown (Analyze) l Location: Makeup Tank Corridor 5 CFM Sensitivity: 8.2 X 10 / Ci/a f 5 HIGH ALARM SETPOINT: 5.0 X 10 CPM Basis: Total activity of primary coolant at 1% failed fuel is 360 pCi/cc. 5 Calcul a tion: (360 pCi/cc)(8.2 X 10 CFM/pCi/cc) = 2.95 X 10+8 CFM NOTE: Since this is above the range of the i monitor. conservativelv set the setcoint l 5 at 5.0 X 10 CPM. ALERT ALARM SETPOIND 2.5 X 105.;pg, l Basis: Based on Tech Spec Limit of 130 I pCi/cc which will insure tnat a whole body dose of less than 0.5 ROi will cccu: at the site boundary shou'ld a steam generator tube rupture accident occur (assuming E = 1 Mev) 5 CPM 3 Calculation: (130 pCi/cc)(8.2 X 10 /uCi/cc) = 1.06 X 10 CPM NOTE: Since this is above the range of the monitor, conservatively set the setpoint 5 at 2.5 X 10 CPM. 7 ~5 87 E 66.0 e
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2105-1.12 f.evision 4 05/04/78 IC-R-1091 Location: Intermediate Cooling Water Letdown Cooler MU-C-18. Sensitivity: 9.03x 10+7 CPM /(uCi/cc) (Csl37) HIGH ALARM SETPOItiT: 5000 CPM Basis: 10 times t,ackground to provide positive identification of leakage. (Background = 500 CPM) Calculation: (10) (500 CPM) = 5000 CPM .53 x 10 pCi/cc = Alarm Concentration: 9.03 x 10+7 CPM /( Ci/cc) ALERT ALARM SETPOIrlT: 1000 CPM Basis: 2 times background to provide early detection of leakage. Calculation (2) (500 CPM = 1000 CPM) 1000 CPM = 1.107 x 10-5 uCi/cc Alara Concentration: 9.03 x 17 CPM /( Ci/cc)
- i 67.0 187 Jgp
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2105-1.12 Revision 4 05/04/78 IC-R-1092 Location: Intermediate' Cooling Water Letdown Cool 3r MU-C-1 A Sensitivity:
- 9. 03 x 10+7 CPM /(aci/cc)
(Csl37) l HIH ALARM SETPOINT: 5000 CPM Basis: 10 times background to provide positive ider.tification of leakage. (Background = 500 CPM). Calculation: (10) (500 CPM) = 5000 CPM 5 CPM = 5.53 x 10-5 pCi/cc Alarm Concentration: 9.03 x 10*7 CPM /(pC/cc) ALERT ALARM SETPOINT: 1000 CPM Basis: 2 times background to provide early detection of leakage. Calculation: (2) (500 CPM) = 1000 CPM 1000 CPM 17 CPM /(uCi/ci) = 1.107 x 10-5 Alarm Concentration: Ci/cc 9.03 x 10 I e 1 g 7 '5 68.0 153: e
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~ 2105-1.12 Revision 4 05/04/78 IC-P-1093 location: Intermediate icoling Water Cooler Outlet 157) 9.03 x 10+7 CPM / ( Ci/cc) (Cs Sensitivity: HIGH ALARM SETPOINT: 2000 CPM Basis: 10 times background to provide positive identification of leakage. (Background = 200 CPM). Calculation: (10) (200 CPM) = 2000 CPM = 2.215 x 10-5 uCi/cc 2000 CPM Alarm Concentration: 9.03 x 10+7 CPM /(pCi/cc) ALERT ALARM SETPOINT: 4000 CPM Basis: 2 times background to provice early detection of leakage. Calculation: (2) (200 CPM) = 400 CPM = 4.429 x 10-6 Ci/cc 4000 CPM Alara Concentration: 4.03 x 10-7 CPM /( Ci/cc) t t 7 i 69.0 1 i i 187 154 i l i e. .me --w-esw.w
2105-1.12 Revision 4 05/04/78 WDL-R-1311 Location: Liquid Effluent Plant tio. 2. ~ 7 137 Sensitivity: 9.23 x 10 CPM /p c/cc. ( Based on Cs) During Release see H.P.P.1621.2 Releasing Radioactive Liquid Waste, for determination of setpoints. tiOTE: Setpoint will vary depending on conentrations to be discharged. During Periods of t;on-Release. HIGH ALARM SETPOIt1T: 9000 CPM -7 Basis: MPC for Iodine-131, 3 x 10 u Ci/cc minimum dilution factor of 50 GPM release rate 17100 GPM MDCT flow. Calculation: 3 x 10-7 uCi/u x 9.23 x 10+7 CPM 17100 GPM = 9469 CPM x pCi/cc 50 GPM Since there is no meter graduation at 9469 CPM 9000 CPM is the setpoint. ALERT SETPOIllT: 1800 CPM ~ Basis: Maximum allowable count rate due to contamination before decontaimination is necessary. 7 ~5 70.0 187 155 m~
~ 2105-1.12 Revision 4 05/C4/78 DO-R-3399 Location: Decay Heat Closed Cooling Water Loop A. 9.03x 10+7 CPM /(pCi/cc) (Csl37) Sensitivity: HIGH ALARM SETPOINT: 2000 CPM 10 times background to provide positive identification of Sasis: leakage. (Background = 200 CPM) Calculation: (10) (200 CPM) = 2000 CPM 2000 CPM = 2.215 x 10-5 uCi/cc Alarm Concentration: 9.03 x 10+7 CPM /(uCi/cc) A,LERT ALARM SETPOINT: 400 CPM 2 times background to provide ea..y detection of leakage. Basis: Calculation (2) (200 CPM = 400 CPM) 400 CPM -6 = 4.429 x 10 uCi/cc Alarm Concentration: 17 CPM /( Ci/Ci) 9.03 x 7 1 71.0 \\ 187 155
2105-1.12 Revision 4 05/04/78 DC-R-3400 Location: Decay Heat Closed Cooling Water Loop B. Sensitivity: 9.03x 10+7 CPM /(uCi/cc) (Csl37) HIGH ALARM SETPOINT: 2000 CPM Basis: 10 times background to provide positive identification of leakage. (Background = 200 CPM) Calculation: (10) (200 CPM) = 5000 CPM 2000 CPM , ;. 215x 10-5 uCi/cc Alarm Concentration 9.03 x 10+7 CPM /(uCi/cc) ALERT ALARM SETPOIX : 400 CPM Basis: 2 times background to provide early detection of leakage. i Calculation (2) (200 CPM = 400 CPM) 400 CPM -6 Alarm Concentration: = 4.429 x 10 uCi/cc I7 9.03 x M/(uCi/cc) Ii 72.0 0/ lJ/ C7 O
2105-1.12 i Revisio, 4 l 0a/04/78 t;S-R-3401 Location: Nuclear Services Closed Cooling Water. Sensitivity: 9.03x 10*7 CPM /(uCi/cc) (Csl37) HIGH ALARM SETPOI!1T: 2000 CPM Basis: 10 times background to provide positive identification of leakage. (Background = 500 CPM) Calculation: (10) (200 CPM) = 2000 CPM = 2.215 x 10 pCi/cc Alarm Concentration: 9.03x10+7CPMisCi/cc) ALERT ALARM SETPOINT: 400 CPM Basis: 2 times background to provide early detection of leakage. Calculation (2) (200 CPM = 400 CPM) 400 CPM -6 Alarm Concentration: = 4.429 x 10 Ci/cc 9.03 x #7 CPM (uCi/Ci) 7 'h f0f l}g 73.0
2105-1.12 Revision 4 ~ 05/04/78 SF-R-3402 (Spent Fuel Cooling) Location: Spent Fuel Cooling Room Se.'s i t ivi ty: 1.05 X 10+9CFM/uCi/cc ~ 4 ' IGH stARM SETPOINT: 1.0 X 10 Basis: 5 times background to provide positive identification of leakage (Backgound 2000) f 4 Calculatio.: 5 X 2000 CFM = 1.0 X 13 CPM 4 1.0 X 10 CPM 9 CPM =9.52 X 10 pCi/cc 1.05 X 10 / Cf/cc ALERT ALARM SETPOINT: 4.0 X 10+3 Bas's: 2 times background to provide positive identification of leakage (Background 2000 CPM). Calculation: 2 X 2000 = 4.0 X 10+" CFM 4.0 X 10+3 CPM = 3.8 X 9 1.05 X 10 CPM /uci/cc 7i 74.0 187 159 ~ .m +.%.
- = - - -
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[> i 2105-1.12 Revision 4 05/04/78 WT-R-3294 Location: Water Treatment and Condensate Polishing Sensitivity: 1.05 x 10+8 CPM /pCi/cc (I-131) HIGH ALARM SETPOINT: 2000 CPM Basic 10 times background to provide positive identification of lea: ige. (Background = 200 CPM) Calculation: (200 CPM) (10) = 2000 CPM 2000 CPM nlarm Concentration: = 1. 9 x 10-5 Ci/cc 1.05 x 10+8 CPM /(uti/cc) ALERT ALARM SETPOINT: 1000 CPM Basis: 50% of High Alarm Setpoint. Calculation: (2000 CPM) (0.5) = 1000 CPM 1000 CPM 9.52 x 10-6 uCi/cc = Alarm Concentration: 1.05 x 10+8 CPM /( Ci/cc)
- i 75.0
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~ 2l05-1.12 Revision 4 C1/04/78 WT-R-3395 Location: 'Ater Treatment and Condensate Polishing. Sensitivity: 1.05 x 10+8 CPM /pCi/cc (I-131) HIGH ALAR'i SETPOINT: 1500 CPM -7 Basis: MP0 water for I-131 ( 3 x 10 pCi/cc) assuming a maximum discharge (400 gpm) and minimum MDCT (17, 100 gpm) flow plus background. (Background = 200 cpm)
Reference:
10 CFR 20, Appendix B, Taule II. Calculation: (3 x 10-7 Ci/cc) ((17,100 gpm)/(400 gpm)} = 1.28 x 10-5 Ci/cc (1.28 x 10-5 uCi/cc) (1.05 x 10+8 CPM /pci/cc) = 1344 CPM 3 1344 CPM + 200 CPM = 1544 CPM = 1.544 x 10 CPM Alarm Concentration: Since the meter can not be graduated to the calculated setpoint, the high alarm will be set at 1500 CPM, which is more conservative. 1500 CPM = 1.43 x 10-5 Ci/cc 1.05 x 10+8 CPM /pci/cc ALERT ALAPf4 SETPOINT: 750 CPM Basis: 50% of High Alarm Setpoint. Calculation: (1500 CPM) (0.5) = 750 CPM h b 750 CPM -6 = 7.143. x 10 Ci/cc Alarm Concentation: 1.05 x 10+8 CPM /(uCi/cc) !b.7 }6l 76.0 -....-.-.-..---------l .-}}