ML19254B012
| ML19254B012 | |
| Person / Time | |
|---|---|
| Site: | Crane  |
| Issue date: | 02/15/1978 |
| From: | Seelinger J METROPOLITAN EDISON CO. |
| To: | |
| Shared Package | |
| ML19254B010 | List: |
| References | |
| 1670.7, TM-0901, TM-901, NUDOCS 7909170674 | |
| Download: ML19254B012 (5) | |
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Revisit.n 2 1/16/78 THREE MILE ISLAND NUCLEAR STATION i
STATION HEALTH PHYSICS PROCEDURE 1670.6 0FF-SITE RADIOLOGICAL MONITORING 1.0 DISCUSSION During a Radiation Emergency (Site or General) where an accidental release of radioactive material, an off-site monitoring team will provide radiological assessment data and iaformation.
Conditions at the time of an occurrence will dictate specific areas where radiological efforts will be required.
Since emergency situations are expected to produce hign radiation levels for a relatively short period of time, initial radiological assessment data is required as soon as possible.
2.0 RADIOLOGICAL MONITORING
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2.1 Off-Site Radiation Monitoring Team - Airborne Release 2.1.1 An Off-Site Radiation Monitoring Team (RMT) shall be assigned at the Emergency Control Station end dispatched to the security E
ech facility by the Radiation Protection Supervisor to obtain emergency monitoring equipment.
2.1.2 Communications will be established via walkie-talkie with the Emergency Control Station (ECS).
2.1.3 The RMT shall have the emergency monitoring kits, air sampler, powerverter and walkie-talkie and proceed to location as directed by the ECS.
(Refer to monitoring map.)
2.1.4 At the location designated, perform a dose rate survey of the general area.
Recordar.drelaygatainformationtotheRadiation Protection Supervisor at the ECS. Wait for further instructions from the ECS.
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2.1.5 If directed by the ECS to collect an air sample and detennine a radiciodine airborne activity concentration continue with the following:
2.1.6 Install the powerverter (DC/AC Converter) by connecting the positive (+) and negat' fe (-) terminals to their respective posts on the vehiries 12V DC battery.
2.1.7 Set the main circuit breake. switch and the selector switch to "on".
(Red Neon Pilot Light indicates proper operation set-up).
2.1.8 Using the Radeco High Volume Air Sampler with a radiciodine sampler cartridge, connect to the powerverter.
2.1.9 Set selector switer.' to " variable" and adjust flow to indicate 3
3 5
5ft / minute and sample for 3 minutes to yield 15 ft or 5x10 3
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cc sampled air.
(If 5 ft / minute cannot be obtained adjust flow as high as possible and sample air long enough to yield 3
15 ft ).
Record sample time and contact ECS for location outside of plume for sample counting.
2.1.10
__ The Eberline SAM-2/RD-19 Detector System (Dual-Single Channel Ana' yzer) will be used for counting the cartridge.
2.1.11 The_ SAM-2 will be powered by use of the battery pack which connects to the rear panel. Adjacent to this connection is the power switch and stabilizer switch 'to "on".
BATT OK Light-on fmnt panel should be ON.
If the light flickers or does not light, the AC power cord will be substituted for 'he
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battery pack.
The instrument is,then connected to the powerverter for AC power.
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Revision 2 1/16/78 2.1.12 Control Circuitry should be set as follows:
a.
Ratemeter switch to " CHI" and selector switch to appropriate range.
(i.e. X1, X10, etc).
b.
Scaler display switch to "0N" with count mode switches at 5, X1, timed.
c.
The windows, thresholds, and HV adjust controls should be checked for correct settings as indicated on the calibration
- sticker, d.
Threshold switches to "IN", window switches CHI "+", CH2 "Off".
e.
With the detector probe connected to front panel, push count reset - start switch for counting sequence.
2.1.13 Radioiodine Airborne Activity Concentration is calculated by:
C Net Counts / Minute 6
(Eff) (Volume) (2.2x10 )
Efficiency is posted on the SAM-2 Analyzer.
2.1.14 The concentration data should be relayed to the ECS as soon as possible, and wait for further instructions.
2.1.15 The ECS may direct the monitoring team to do the following:
a.
If a continuous air monitor is located in the designated area, replace charcoal and particulate filters with clean filters and make gross radioactivity determinations from dirty filters.
Retain dirty filters for precise laboratory
- analysis, b.
If TLD station is nearby, co.llect TLD and return it to 3
the ECS for evaluation.
Replace it with a new TLD.
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Report results to Radiation Protection Supervisor.
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d.
Place sufficient TLD's at either the continucas air monitor or at a convenient, representative location in the designated area to pennit reading TLD's every four hours during the emergency.
e.
Collect additional samples as specifically directed.
2.2' Off-Site Radiation Monitoring Team - Liquid Release 5
2.2.1 When a reading of 6.8x10-3 Ci/ml (4.8x10 CPM) is indicated, a radiation monitoring team will be dispatched by the Radiation-Protection Supervisor.
2.2.2 Water samples will be obtained at the following locations:
a.
Discharge Monitoring Point b.
York Haven Dam c.
City of Columbia
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Other points as designated by the Radiation Protection Supervisor 2.2.3 Samples will be analyzed to determine activity concentration.
2.3 Washdown Area Monitor 2.3.1 Decontamination of vehicles will be supervised by a Rad / Chem Technician at each of the washdown areas.
(North Washdown Area -two miles north of the North Gate on Route 441 (Kiwanis Field adjacent to Swatara Creek).
South Washdown Area - 3 miles south on Route 441 (Collins Substation).
2.3.2 Vehicles will be monitored prior to and following the washdown.
The vehicle will be released if the radiation level is less
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i than 0.5 mR/hr.
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THREE MILE ISLAND NUCLEAR STATION 02/15/78 VOLUME 1EMERGENCYPi.ANSANDPROCEDURES100{
STATICN HEALTH PHYSICS PROCEDURE 1670.7
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EMERGENCY ASSEMBLY, ACCOUNTA8ILITY AND gCA N
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Table of Effective Pages 8
Pace Date Revision h
Date Revision Page Date Revision 1.0 01/16/78 2
26.0 51.0 2.0 01/16/78 2
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,ppreval Unit 2 Staff Recom e proval Approval I7 Date ~
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Date Cognijant (Te/t. Head CognfantD'egl Hoad Unit 1 PORC Recommends Approval Unit 2 PORC Recommends Approval A
Date 2 3
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/ Chairman of PORC
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y Chairman of PORC Unit 1 Superintend nt Ap royal Unit 2 Superintendent Approval s
Date2.l St$)f A A 4Mby Date
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Manager Generation Quality Assurance Approval
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Revision 2 1/16/78 THREE MILE ISLAND NUCLEAR STATION STATION HEALTH PHYSICS PROCEDURE 1670.7 EMERGENCY ASSEMBLY, ACCOUNTABILITY AND EVACUATION 1.0 ASSEMBLY OF PERSONNEL l.1 Upon notification of an emergency or upon hearing the Radiation Emergency Alarm, all nonessential personnel located outside the controlled area of Unit One (1) report to the North Assembly Area.
All nonessential personnel located outside the controlled area of Unit Two (2) report to the South Assembly Area.
NOTE:
North Assembly Area is the Service Building Auditorium north of the Unit One (1) Service Building. South Assembly Area is the west end of the Unit Two (2) Turbine Building 305' elevation.
l.2 Upon notification of an emergency or upon hearing the Radiation Emergency Alarm, all nonessential personnel within the confines of the controlled areas of Unit One (1) and Unit Two (2) report to the Emergency Control Station (ECS) located on the 306' elevation of the Unit One (1) control tower.
1.3 Upon hearing the Reactor Building evacuation alarm, all personnel will leave the Reactor Building immediately and assemble at the ECS.
1.4 All personnel located in the controlled area will follow the red
" Radiation Emergency Route" arrows to the ECS.
1.5 All personnel outside the controlled area follow the blue " Evacuation Route" arrows to the north assembly area for Unit One (1) and to the south assembly area of Unit Two ( ).
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Revision 2 1/16/78 2.0 Accountability of Personnel 2.1 A site protection officer will compile a list of all personnel that have mustered at the ECS, North Assembly Area, South Assembly Area and the Control Rooms.
Personnel rolls taken of the ECS, Control Room and South Assembly Area, will be forwarded to the site protection officer at the North Assembly Area.
2.2 The site protection officer will compile the roll counts from the ECS, Control Room, South Assembly Area and North Assembly Area, into a master list of names and badge numbers of all site personnel.
The master list will contain the names and badge numbers of all personnel.
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2.3 Upon actuation of the Radiation Emergency Alarm, the site protection officer will be dispatched to the North Gate to obtain a list of all personnel who gained entrance to the Island from the North C.
'~i Gate.
2.4 The North Gate Guard will be notified to prohibit entrance and exit to and from the Island to all personnel except those authorized by the Radiation Protection Supervisor.
2.5 A comparison between the master list, compiled by a site protection officer.an_d the North Gate list will be made by the site protection sergeant (or his alternate). Any discrepancies between the two (2)
-lists will-be noted.
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2.6 The names and badge numbers of personnel not accounted for will be reported to the Radiation Protection Supervisor.
2.7-The Radiation Protection Supervisor will send out search and rescue teams for any personnel not accounted for.
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1670.7 Revision 2 1/16/78 2.8 During this time an attempt should be made to contact the missing
,m personnel at home.
2.9 the search and rescue team, with appropriate protective clothing and monitoring devices as detennined by the Radiation Protection Supervisor, will conduct a systematic search of the station area.
2.10 The search should begin at the most probable location as determined by the latest work assignment, and continue until the station has been covered.
2.11 The result of the search will be reported by the search team to the Radiation Protection Supervisor at the ECS.
If all efforts are unsuccessful, the Supervisor of Radiation Protection and Chemistry will contact the Station / Unit Superintendent to request that the effort be suspended.
3.0 SITE EVACUATION ~
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3.1 In the event that the site is to be evacuated, all personnel will be directed by the Station / Unit Superintendent to exit the island.
Site Security will provide traffic control.
3.2 All personnel and vehicles that are or potentially are found to have contamination levels greater than 0.5 mr/hr will be instructed to report to the appropriate washdown area.
4.0 EVACUATION OF GENERAL POPULATION FROM THE LOW POPULATION ZONE (LPZ) 4.1 If data reported by the Emergency Off-Site Monitoring team exceeds Radiation Protection Guides recomended by the Cornmealth of Pennsylvania, evacuation of the general population will be initiated.
These guides are listed in Section 4 of the Three Mi.le Island Plan.
4.2 The Commonwealth of Pennsylvania has hie ultimate responsibility 3.0 74.1132
1670.7 Revision 3 02/15/78 for evacuation, provided the appropriate department within the Commonwealth (Bureau of Radiological Health) can be contacted at the time and the situation permits.
If the situation requires immediate protective action for the local population, Met-Ed will recommend to the County Civil Defense, to initiate the evacuation of the affected area.
4.3 If the decision is made to evacuate the section of the LPZ in the downwind direction, each resident of the affected area will be notified and instructed to report to specified Civil Defense shelters.
It may be necessary for the State Police to erect certain road blocks at roadways.
4.4 The U.S. Coast Guard will be responsible for notifying swirmers and small craft in areas adjacent to the site to evacuate.
The Coast
____7 Guard will be notified by the Civil Defense.
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