ML19209B590

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Emergency Procedure 1202-12,Revision 9, Excessive Radiation Levels.
ML19209B590
Person / Time
Site: Three Mile Island Constellation icon.png
Issue date: 07/07/1979
From:
METROPOLITAN EDISON CO.
To:
References
1202-12, NUDOCS 7910100196
Download: ML19209B590 (16)
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W i4 4 '- ' g]* UNIT #1 EMERGENCY PROCEDURE 1202-12 EXCESSIVE RADIATION LEVELS Table of Effective Pages . Pace Date Revision Pace Date Revision Pace Date Revision 1.0 07/07/79 9 26.0 51.0 2.0 07/n7/79 9 27.0 52.0 3.0 07/07/79 9 28.0 53.0 4.0 07/07/79 9 29.0 54.0 5.0 07/07/79 9 30.0 55.0 6.0 07/07/79 9 31.0 56.0 7.0 07/07/79 9 32.0 57.0 8.0 07/07/79 9 33.0 58.0 9.0 07/07/79 9 34.0 59.0 10.0 07/07/79 9 35.0 60.0 11.0 07/07/79 9 35.0 . 61.0 12.0 07/07/79 9 37.0 62.0 13.0 07/07/79 9 38.0 63.0 14.0 07/07/79 9 39.0 64.0 l15.0 07/07/79 9 40.0 65.0 16.0 41.0 66.0 17.0 42.0 67.0 18.0 43.0 68.0 19.0 44.0 69.0 20.0 45.0 70.0 21.0 ' 46.0 71.0 22.0 47.0 72.0 23.0 48.0 73.0 24.0 49.0 74.0 25.0 50.0 75.0 Unit 1 Staff Recommends Approval Unit 2 Staff Reco. mendt proval Approval Date Approval / 6 Date C;jnindt Ospl. Head CognizantDe6t. Hehd Unit 1 FORC Recommends Approvsl Unit 2 PORC Recommen's pproval ( E Il K Date 7'b7#/ 7i Date 

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T Chairman of P08J Chairmjn of AGAC/ I Unit 1 Superin8ndent Approval Unit 2 Superinten ent A r al Date 7/ / Date Manager Generation Quality Assurance Approval / 9 ate 7910I 00 / " " ""*"' 

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1202-12 Revision 9 07/07/79 THREE MILE ISLAND NUCLEAR STATION UNIT #1 EMERGENCY PROCEDURE 1202-12 EXCESSIVE RADIATION LEVELS 12.1 SYMPT 0MS - Symptoms of excessive or potentially excessive, radiation levels are as follows: Note that these conditions may occur under both planned and unplanned radioactive releases. Planned releases as, covered in HPP 1621 and 1622 are exemot from this Procedure,

a. RADIATION LEVEL HI alarm on Control Room annunciator AN, light box C-2-1.
b. Hi alarm (red indicator light) from any radiation monitor, located on Control Room panel PRF.
c. Radiation monitor rate meter indicates radiation level in excess of Hi Alarm set point NOTE: Alert and high alarm setpoints are listed in 1102-
       ,                          2.1.
d. Alert (yellow indicator light) alarm from any radiation monitor, located in Control Room panel PRF.
e. Radiation monitor rate meter indicates radiation level in excess of Alert Alarm set point.
f. Significant increases on atmospheric radiation monitors above background levels.

12.2 IMMEDIATE ACTION NOTE: When an alarm level is reached on an RMS ratemeter, the local alarm light will energize, and the Panalarm "Hi Radiation Level" will annunciate. The annunciator 1.0 1122 323 - U

1202-12 Revision 9 07/07/79 should then be acknowl' edged and cleared. If any other ratemeter reaches an alarm level, or if the same ratemeter reaches a higher degree alarm (i.e. High Alarm following Alert Alarm), the Panalarm will again annunciate immediately. However, if e alarm on a particular ratemeter occurs, then clears, and that same alarm on that same ratemeter occurs again in less than one minute, the Panalarm will not annunciate the second time. Therefore, if an alarm occurs and clears, observe the ratemeter closely for one minute to ensure that a recurrence of that alarm will not be missed. 12.2.1 Automatic Action

a. Receipt of an Alert Alarm.
b. Receipt of a Hi Alarm.
                               !!0TE:      Refer to Alarm Response for specific monitor alarming for details of automatic action, general actions only are given below. Automatic interlocks associated with gas and liquid high alarms are outlined in Enclosure I.

Isolate flow paths in affected systems. 12.2.2 Manual Action

a. If directed hy Shif t Supervisor / Shift Foreman, announce the following using the Intra Plant Communications Systems page channel: " Radiation, Hi Alarm, (Location and alarming monitor)"

2. 1122.524 . 

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 .      -                                                                                Revision 9 07/07/79
b. If applicable, direct personnel involved in maintenance, operation or sampling activities to immediately isolate the source of the radioactive . release per the step specified in the applicable special operating procedure.
c. Ensure that the appropriate control room charts (RMS and Meteorological) are marked with the date and time.

12.2.3 Follow-Up Action Objective: Provide steps to sample and analyze high radiation conditions.

a. Verify that automatic activa (if any) specified by Alarm Response has occurred.
b. Initiate the following action depending upon the
           ,                    type of monitor which is alarming and the type of alarm.

NOTE: Refer to specific Alarm Response for detailed manual action required. Below steps are generally applicable. (1) Atmospheric Monitor: NOTE: RESPIRATORY EQUIPMENT MUST BE WORN IN AREAS OF KN0'.IN AIRBORNE ACTIVITY UNLESS SAMPLES TAKEN INDICATE R25PIRATORY EQUIPMENT IS NOT REQUIRED. IF, FOR SOME REASON, PERSONNEL ARE REQUIRED TO ENTER AREAS OF KNONN AIRBORNE 

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1202-12 Revision 9 07/07/79 ACTIVITY WITHOUT PRIOR SURVEYS, THE 

                                ' BASIS FOR THE EllTRY AtlD THE REASO.'IS FOR HEARIrlG OP, fl0T WEARIt!G RESPIRATORY PROTECTIVE EQUIPMENT ".UST BE DOCUMEf1TED BY THE SHIFT SUPERVIEOR Oft ENCLOSURE II.

(a) Alert Alarm: Sample and analyze as specified in H.P.P. 1676 if required. NOTE: Velometer readings must be taken in the affected area and record d on Enclosure II, Step 11. Evacuate affected area (s) if analyses indicate activity in excess of limits for which an RWP is required (3 x 10-10 pCi/cc) Determine source of radiation. Take appropriate action to contain radioactivity and reduce levels. COMPLETE THE OPERATI0flS PLAtlNED/UtlPLANNED RELEASE REPORT (ENCLOSURE II), (b) Hi Alarm: Clear Affected area of all unnecessary personnel. Notify HP Dept. of problem and direct them as to which area (s) must be sampled and the type of samples required. 

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1202-12 Revision 9 07/07/79 Re-enter affected area using air breathing apparatus to obtain air samples. Analyze air samples in accordance with HP Procedure 1676. f10TE: Velometer readings must be taken in the affected area and recorded on Enclosure II, Step 11. If analyses equals greater than 3 x 10-10 pCi/cc, re-entry to area will be permitted only under RWP. Determine source of airborne contaraination. Take appropriate action to contain radioactivity and reduce levels. If RM-A5, PJ1-A8 and or RM-A9 go into the high alarm condition perform the following:

1. flotify the Health Physics Department.
2. Give wind direction and specify location of site Fence Survey.
3. Insure that the Health Physics Department collects a gas, particulate, iodine and B-y survey at the site of Fence location.
4. Clear affected area of all unneces.sary personnel.
5. Re-enter affected area using air breathing apparatus to obtain air samples.

1122 _U7 5.0 e mm

1202-12 Revision 9 07/07/79

6. Analyze air samples in accordance with H.P.P. 1676.
7. If analysis equals greater than 3'x 10-10 pCi/cc re-entry to area will be permitted only under RWP.
8. Determine source of airborne contamination.
9. Take appropriate action to contain radioactivity and reduce levels.

(c) Significant Increase: no alarm fiotify Health Physics Personnel to obtain the following samples and analyze in accordance with HPP 1676:

1. Particulate Increase: Remove and analyze the particulate filter from the appropriate monitor. (Filters from monitors showing greatest count rate increase should be analyzed first) .

fl0TE: For particulate increases which are not accompanied by gaseous increases, and when GeLi analysis indicates primarily Radium (RA) and/or thorium (TH) isotopes present, the increase is due to naturally occurring 

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1202-12 Revision 9 07/07/79 daughter products of these isotopes and unusual weather conditions. Only one filter indicating RA or TH is .onclusive, other filters need not be counted. Mark the RMS strip charts to indicate "RA-TH" activity. tio further action is necessary.

2. Iodine Increases: Remove and analyze the charcoal filter from the appropriate monitor.
3. Gaseous Increases: Take grab sample j
                                                          , .v-with a marinelli beaker and analyze.         '

Determine the cause of the increase. Take appropriate action to correct the cause of the increase. Complete the Operations Planned / Unplanned Release Report (Enclosure II). NOTE: Velometer readings must be taken in the affected area and recorded on Enclosure II, Step 11. 1122 329 7.0

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  • Revision 9 07/07/79 (2) Gamma Monitor:

(a) Alert Alarm: Survey affected area (s) using Eberline RAD-owl R0-1, 0-500 R/hr portable ion chamber, or equivalent, to verify alarm. Locate radiation source. Take appropriate action to reduce radiation levels. (b) Hi Alarm: Survey affected area (s) using Eberline RAD-owl R0-1, 0-500 R/hr portable ion chamber, or 

  ,                equivalent, to verify alarm.

If survey indicates radiation levels greater than 100mr/hr, permit entry to area to locate radiation source and take action to reduce radiation levels only under RWP. Take appropriate action to reduce radiation levels. (3) L_i_ quid Monitor: (a) Alert Alarm: Notify HP/ Chem Dept. Obtain sample from affected system and analyze and count sample in accordance with approved HP and Chem Procedures. l Take action as necessary to contain radioactive liquid. 8- _ 1122 33C

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 *    '                                                      Reyision 9 07/07/79 Take appropriate action to reduce activity level .

(b) H.i Alarm: - Notify HP/ Chem Dept. Obtain sample from affected system and analyze and count sample in accordance with appropriate HP and Chem procedures. If analysis indicated activity greater than alarm setpoint per 1101-2.1 for closed cooling water systems then isolate affected portion of system if possible. Obtain additional samples from same and/or additional locations and count as required. Take action as necessary to contain radioactive liquid. Take appropriate action to reduce activity level . (c) If source of radiation is a spill, refer to Health Physics Procedure 1670.1, Local Emergency Plan. (4) Complete the Operations Planned / Unplanned Release Report. (Enclosure II) NOTE: Circle " Planned" or " Unplanned" in title to denote type of release. Ensure that Personnel Exposures are recorded. Ensure that Personnel Film Badges /T.L.D. are processed, if needed. 9.0 2-59

1202-12 Revision 9 07/07/79 Ensure that the release point cubicle or room air velocity flow is taken. As soon as reasonably possible notify instrumentation to obtain these ' readings. Decontaminate as necessary. Ensure that the calculations for H.P.P.1676 Attachment A are completed. These calculations include ,10_ CFR 20.403 evaluation and airborne concentrations that personnel may have been exposed to. In addition these calculations:

a. Compute Peak & Avg. I 131 & Particulate release rate (if applicable).
b. Compute Peak & Avg. floble gas release rate.
c. Credit the quarterly & annual currie inventing released to the environment.
c. Complete the Operations Unplanned Release Report (Enclosure II) 1122 332
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1202-12 Revision 9 07/07/79 EtiCLOSURE I Interlocks Associated With Radiation Monitoring System Hi Alarms 1.0 Interlock functions actuated by Hi Alarms from specific atmospheric radiation monitors are as follows: 1.1 Control Room Air Monitor (gas channel), RM-A1.

a. The following fans shutdown if operating:
1. liormal Supply Fans (AH-E-17A, AH-E-178) .
2. Booster Fan (AH-E-95A, AH-E-958).
3. Controlled Access Area Exhaust Fan (AH-E-20A, AH-E-20B).
4. Kitchen Exhaust Fan (AH-E-21).
5. HotMachineShopAirHandlingUnit(AH-E-26).
6. Control Building Hallway Fans (AH-E-94A, AH-E-94B).
7. AH-E-93A, 93B.
b. The following dampers assume positions indicated:
1. Controlled Access Area Damper, AH-D-28, closes.
2. . Return Air Damper, AH-D-36, opens fully.
3. Outside Air Intake Damper, AH-D-37, closes.
4. Outside Air Relief Damper, AH-D-39, closes.
c. This action places the Control Building Ventilation System in readiness for recirculation operation. Operator action is required to start Emergency Supply Fan (AH-E-18 aor AH-E-14).

1.2 Fuel Handling Building Ventilation Duct Monitor (gas channel), RM-A4: Fuel Handling Building Supply Fan (AH-E-10) shutc down. I122 533 11.0 

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Revision 9 07/07/79 1.3 Auxiliary Building Ventilation Duct Monitor (sas channel), RM-A6: Auxiliary Building Supply Fan (AH-E-ll) shuts down. 1.4 Gas Waste Tank Discharge Monitor, RM-A7: . Waste Gas Release Valve, WDG-V47, closes. 1.5 Auxiliary and Fuel Handling Building Exhaust Duct (gas channel), PM-A8.

a. The following fans shutdown:
1. Fuel Handling Building Supply Fan (AH-E-10).
2. Auxiliary Building Supply Fan (AH-E-ll).
b. Waste Gas Release Valve, WDG-V47, closes.

1.6 Reactor Building Purge Duct (gas channel), RM-A9: The following valves close:

a. Outside Reactor Building Purge Exhaust, AH-V1A.
b. Inside Reactor Building Purge Exhaust, AH-VlB.
c. Inside Reactor Building Purge Supply, AH-VlC.
d. Outside Reactor Building Purge Supply, AH-VID.
e. Reactor Building Sump Outlet Isolation, WDL-V534.
f. Reactor Building Sump Outlet Isolation Valve, WDL-V535.

2.0 Interlock functions actuated by Hi Alarms from specific liquid radiation monitor are as follows: 2.1 Radioactive Waste Water Discharge Monitor, RM-L6. Mechanical Draft Cooling Tower Stop Valve, WDL-V257, closes. 2.2 Plant Discharge -Line Monitor, RM-L7. The following valves operate as indicated:

a. Mechanical Draft Cooling Tower Stop Valve, WDL-V257, closes.

1122 334 12.0

1202-12 Revision 9 07/07/79 2.3 14iscellaneous Sump Discharge ficnitor, Pfi-L8. fl0TE: RM-L8 has been rem'oved frora service UDL-V500 has been failed closed and WDL-V501 failed open to prevent any discharge to the river via FJi-L8 discharge path. Sump discharge is routed to the fiiscellaneous Waste Storage Tank. i 1122 335 13.0 G W 

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,.,.i*. 1202-12 ENCLOSURE II 1202-12 

      - -                                                                                Revision 9 (CIRCLE PLAriNED OR UNPLA!iNED)                     07/07/79 OPERATI0ils -PLAtitlED/Ut! PLANNED RELEASE REPORT (SHIFT SUPERVISOR:     Complete Sections #1 through #11)
1. DATE: 2. TIME:
3. RMS AND METER 0 LOGICAL CHARTS MARKED: Yes No
4. Radiation Protection Dispatched for Environmental Samples Yes fio
5. DESCRIPTION AND CAUSE:
          '. It01EDIATE CORRECTIVE ACTION:

7 TOTAL TIME OF RELEASE: 8 SAMPLE ANALYSIS:

a. Gas Samole Yes fio Location Resul ts:
b. Iodine Sample Yes No Location Results:
c. Particulate Sample Yes No location Results:
d. Radiation Survey Yes fio Location
e. Contamination Survey Yes No Location 4-1122 536
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      -,, 9 FERSONNEL EXPOSURE:       (List all personnel involved in ' incident) hj}h}f}}9 insure film Badges /TLD's are developed within 24 Bours EXPOSURi! RESULT 3      TIME Ill ARLA Or NAMES                        (MREM)           POTENTIAL RELEASE 10     PERSON!!EL CONTAMINATION:       Yes          No Names:
11. Air Flow-Velocity Determination Results C.F.M.

Location

12. REC 0tGlENDATIONS FOR CORRECTIVE ACTION
13. FORM COMPLETED BY:

Shift Supervisor (Forward the original form to the Unit Superintendent and copies to the Station Superintendent , Manager of Generation Operations, Supervisor of Operations and the Health Physics Supervisor) HP to include 20.403 and personnel exposure info. below per page 4.

14. ENGINEERING EVALUATI0ti:

COMPLETED BY:

15. REVIEWED BY:

(Forward the completed form to the Unit Superintendent) 15.0' jj'/2'jj/}}

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