ML19011A175
| ML19011A175 | |
| Person / Time | |
|---|---|
| Site: | Millstone, Surry, North Anna, 07200002, 07200055  |
| Issue date: | 01/04/2019 |
| From: | Dominion Energy Nuclear Connecticut, Virginia Electric & Power Co (VEPCO) |
| To: | Office of Nuclear Material Safety and Safeguards, Office of Nuclear Reactor Regulation |
| Shared Package | |
| ML19011A237 | List: |
| References | |
| 18-364 | |
| Download: ML19011A175 (23) | |
Text
Serial No.: 18-364 Docket Nos.: 50- 245/336/423/338/339/280/281 72-2/16/4 7 /55/56 ENCLOSURE 6 EMERGENCY ACTION LEVEL MATRICES Dominion Energy Nuclear Connecticut, Inc. (DENC)
Virginia Electric and Power Company (Dominion Energy Virginia)
ATTACHMENT 1 MPS1 EAL MATRIX Serial No.: 18-364 Docket No.: 50- 245 Dominion Energy Nuclear Connecticut, Inc. (DENC)
Millstone Power Station Unit 1
MPS UNIT 1 R
Abnormal Rad Levels/
Rad Effluent H
Hazards M
System Malfunct.
1 Rad Effluent 2
Area Radiation Levels 1
Hazardous Event Affecting Safety Systems 2
DSEO/
ADTS Judgment 1
Loss of Spent Fuel Cooling ALERT RA 1 Release of gaseous or liquid radioactivity resulting in offsite dose greater than 1 o mrem TEDE RA1.1 Reading on RM-SFPl-02 Unit 1 Spent Fuel Pool Island Monitor> 4.0E+1 µCi/cc for~ 15 min. (Notes 1, 2, 3, 4)
RA1.2 Dose assessment using actual meteorology indicates doses > 10 mrem TEDE at or beyond the SITE BOUNDARY (Note 4)
RA1.3 Analysis of a liquid effluent sample indicates a concentration or release rate that would result in doses
> 10 mrem TEDE at or beyond the SITE BOUNDARY for 60 min. of exposure (Notes 1, 2)
RA1.4 Field survey results indicate closed window dose rates
> 10 mR/hr expected to continue for~ 60 min. at or beyond the SITE BOUNDARY (Notes 1, 2)
RA2 UNPLANNED rise in plant radiation levels that IMPEDES plant access required to maintain spent fuel integrity RA2.1 UNPLANNED Area Radiation Monitor readings or survey results indicate a rise by 100 mR/hr over NORMAL LEVELS that IMPEDES access to areas of the Reactor Building needed to maintain control of radioactive material or operation of systems needed to maintain spent fuel integrity I
Table ~
Hazardous Events
- ==---*-
Seismic event (earthquake)
Internal or external FLOODING event High winds or tornado strike FIRE (refer to Unit 2/3 EALs for a fire within the Protected Area)
EXPLOSION Other events with similar hazard characteristics as determined by the Shift Manager i
HA2 Other conditions existing that in the judgment of the DSEO/ADTS warrant declaration of an Alert HA2.1 Other conditions exist which in the judgment of the DSEO/
ADTS indicate that events are in progress or have occurred which involve an actual or potential substantial degradation of the level of safety of the plant or a security event that involves probable life threatening risk to site personnel or damage to site equipment because of HOSTILE ACTION.
Any releases are expected to be limited to small fractions of the EPA Protective Action Guideline exposure levels UNUSUAL EVENT RU 1 Release of gaseous or liquid radioactivity greater than 2 times the allocated REMODCM limits for 60 minutes or longer RU1.1 Reading on RM-SFPl-02 Unit 1 Spent Fuel Pool Island Monitor > 1.1 E-2 µCi/cc for~ 60 min. (Notes 1, 2, 3)
RU1.2 Reading on RE-M6-110 Liquid Waste Effluent Discharge Monitor> 2 x the "alarm" setpoint established by a current radioactivity discharge permit for~ 60 min. (Notes 1, 2, 3)
RU1.3 Sample analysis for a liquid or gaseous release indicates a concentration or release rate > 2 x the allocated REMODCM limits for ~ 60 min. (Notes 1, 2)
RU2 UNPLANNED rise in plant radiation levels RU2.1 UNPLANNED water level drop in the SFP as indicated by any of the following:
- SPENT FUEL POOL LEVEL LOW alarm PLC-AL 101
- SPENT FUEL POOL LEVEL LOW-LOW alarm PLC-AL 100
- Report of dropping level in SFP
- Loss of SFP Cooling suction flow ANQ UNPLANNED rise in area radiation levels as indicated by any of the following radiation monitors:
- RM-SFPl-01 Channel 1 Refuel Floor West (Low Range)
- RM-SFPl-01 Channel 2 Refuel Floor East
- RM-SFPl-01 Channel 3 Refuel Floor West (High Range)
RU2.2 Area radiation monitor reading or survey result indicates an UNPLANNED rise of 25 mR/hr over NORMAL LEVELS HU1 Hazardous event affecting SAFETY SYSTEM equipment necessary for spent fuel cooling HU1.1 The occurrence of any Table H-1 hazardous event AND Event damage (excluding loss of offsite AC power) has caused indications of degraded performance of EITHER:
Spent Fuel Pool Cooling System Decay Heat Removal System HU2 Other conditions existing that in the judgment of the DSEO warrant declaration of an Unusual Event HU2.1 Other conditions exist which in the judgment of the DSEO indicate that events are in progress or have occurred which indicate a potential degradation of the level of safety of the plant or indicate a security threat to facility protection has been initiated. No releases of radioactive material requiring offsite response or monitoring are expected unless further degradation of SAFETY SYSTEMS occurs.
MU1 UNPLANNED spent fuel pool temperature rise MU1.1 UNPLANNED spent fuel pool temperature rise to> 140 'F NOTES Note 1: The DSEO/ADTS should declare the event promptly upon determining that the time limit has been exceeded, or will likely be exceeded.
Note 2: If an ongoing release is detected and the release start time is unknown, assume that the release duration has exceeded the specified time limit.
Note 3: If the effluent flow past an effluent monitor is known to have stopped due to actions to isolate the release path, then the effluent monitor reading is no longer VALID for classification purposes.
Note 4: The pre-calculated effluent monitor values presented in EAL RA 1.1 should be used for emergency classification assessments until the results from a dose assessment using actual meteorology are available.
~
Dominion
~
Energy MPS UNIT 1 Millstone Power Station Unit 1 Emergency Action Level Matrix Revision E3 Prepared for Domn,on Energy by Operation* Support Serllcu, Inc. 12-10-18
ATTACHMENT 2 Serial No.: 18-364 Docket Nos.: 50- 336; 72-47 MPS2 EAL MATRICES (Hot and Cold)
Dominion Energy Nuclear Connecticut, Inc. (DENC)
Millstone Power Station Unit 2 and ISFSI
ATTACHMENT 2A Serial No.: 18-364 Docket Nos.: 50- 336; 72-47 MPS2 EAL MATRIX - Hot Conditions (RCS >200 °F)
Dominion Energy Nuclear Connecticut, Inc. (DENC)
Millstone Power Station Unit 2 and ISFSI
ATTACHMENT 28 Serial No.: 18-364 Docket Nos.: 50- 336; 72-47 MPS2 EAL MATRIX - Cold Conditions (RCS ~200 °F)
Dominion Energy Nuclear Connecticut, Inc. (DENC)
Millstone Power Station Unit 2. and ISFSI
ATTACHMENT 3 Serial No.: 18-364 Docket Nos.: 50-423; 72-47 MPS3 EAL MATRICES (Hot and Cold)
I Dominion Energy Nuclear Connecticut, Inc. (DENC)
Millstone Power Station Unit 3 and ISFSI
ATTACHMENT 3A Serial No.: 18-364 Docket Nos.: 50-423; 72-47 MPS3 EAL MATRIX - Hot Conditions (RCS >200 °F)
Dominion Energy Nuclear Connecticut, Inc. (DENC)
Millsto.ne Power Station Unit 3
ATTACHMENT 38 Serial No.: 18-364 Docket Nos.: 50-423; 72-47 MPS3 EAL MATRIX - Cold Conditions (RCS ~200 °F)
Dominion Energy Nuclear Connecticut, Inc. (DENC)
Millstone Power Station Unit 3 and ISFSI
ATTACHMENT 4 Serial No.: 18-364 Docket Nos.: 50-338/339; 72-16/56 NAPS EAL MATRICES (Hot and Cold)
Virginia Electric and Power Company (Dominion Energy Virginia)
North Anna Power Station Units 1 and 2 and ISFSls
ATTACHMENT 4A Serial No.: 18-364 Docket Nos.: 50-338/339; 72-16/56 NAPS EAL MATRIX - Hot Conditions (RCS >200 °F)
Virginia Electric and Power Company (Dominion Energy Virginia)
North Anna Power Station Units 1 and 2
ATTACHMENT 48 Serial No.: 18-364 Docket Nos.: 50-338/339; 72-16/56 NAPS EAL MATRIX - Cold Conditions (RCS ~200 °F)
Virginia Electric and Power Company (Dominion Energy Virginia)
North Anna Power Station Units 1 and 2 and ISFSls
ATTACHMENT 5 Serial No.: 18-364 Docket Nqs.: 50-280/281; 72-2/55 SPS EAL MATRICES (Hot and Cold)
Virginia Electric and Power Company (Dominion Energy Virginia)
Surry Power Station Units 1 and 2 and ISFSls
ATTACHMENT SA Serial No.: 18-364 Docket Nos.: 50-280/281; 72-2/55 SPS EAL MATRIX - Hot Conditions (RCS >200 °F)
Virginia Electric and Power Company (Dominion Energy Virginia)
Surry Power Station Units 1 and 2 and ISFSls
ATTACHMENT 58 Serial No.: 18-364 Docket Nos.: 50-280/281; 72-2/55 SPS EAL MATRIX - Cold Conditions (RCS ~200 °F)
Virginia Electric and Power Company.
(Dominion Energy Virginia)
Surry Power Station Units 1 and 2 and ISFSls