ML20205B773

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Pages 23-34 of Rev 6 to Emergency Plan Procedure EPP-309, Offsite Radiological Monitoring
ML20205B773
Person / Time
Site: Comanche Peak  
Issue date: 06/10/1986
From:
TEXAS UTILITIES ELECTRIC CO. (TU ELECTRIC)
To:
Shared Package
ML20205B769 List:
References
EPP-309, NUDOCS 8608120141
Download: ML20205B773 (12)


Text

CPSES ISSUE DATE PROCEDURE NO.

EPP-309 EMERGENCY PLAN MANUAL JtJN 10 m

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0FFSITE RADIOLOGICAL MONITORING REVISION NO. 6 PAGE 23 OF 34 ATTACHMENT 3 PAGE 1 0F 2 LOCATIONS OF SIREN STATIONS Only four (4) siren locations are described in this Procedure because most of the sirens are highly visible, and their locations are shown on the detailed 10-mile EPZ map in each offsite monitoring kit.

To determine the locations of the sirens not listed below use the detailed 10-mile EPZ map located in each offsite monitoring kit.

Siren Number Location Description 26 This siren is located on private property at Tarrant Baptist Camp. Personnel shall conduct their business in a professional manner. The location of this siren can easily be determined from the detailed 10-mile EPZ map located in each offsite monitoring kit.

31 This siren is located on private property at the Pecan Plantation. Personnel shall conduct their business in a e

professional manner. The location of this siren can easily be determined from the detailed 10-mile EPZ map located in each offsite monitoring kit.

32 Take Road 56 South from plant to the intersection with Highway 67 at Glen Rose. Turn left onto Highway 67 and drive to the intersection with Highway 144 North. Turn left on Highway 144 North and drive 8.5 miles to the second intersection of Highway 144 and Farm Road 2425.

(Highway 144 intersects Farm Road 2425 twice; the second or northern intersection is 2.5 miles past the first.)

Proceed straight ahead 1.9 miles until you are on F.M.

3210 (F.M. 2425 turns off to the right). Go 1.5 miles then turn left onto Hood County Road 312 and proceed toward "Kelley's Corner" Store. Follow H.C.R. 312 1.5 miles. You will see two gates on the right, followed by a bridge. The first gate is unlocked. Pass through it and follow the dirt road. At the end of the road is a cemetery on the left and the siren off to the right.

54 Take road 56 south from plant to the intersection with Highway 67 at Glen Rose. Turn left en Highway 67 and drive to the intersection with Highway 144 north. Turn j

left onto Highway 144 and drive 11.8 miles until f

intersecting Hood County Road 310. Turn right onto Hood

/O County Road 310 and drive approximately 0.8 of a mile to V

the " Ports O' Call" sign. Turn lef t and drive 1.2 miles to the siren.

8608120141 860306 DR ADOCK 05000445 PDR

I CPSES ISSUE DATE PROCEDURE NO.

EMERGENCY PLAN MANUAL JUN10 m EPP-309 l

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OFFSITE RADIOLOGICAL MONITORING REVISION NO. 6 PAGE 24 0F 34 ATTACHMENT 3 FAGE 2 0F 2 LOCATIONS OF SIREN STATIONS Siren Number Location Description

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55 Take road 56 south from planc to the intersection with Highway 67 at Glen Rose. Turn lef t on Highway 67 at Glen Rose. Turn left on Highway 67 and drive to the l

intersection with Highway 144 North. Turn lef t onto Highway 144 and drive 12.5 miles until intersecting Hood County Road 230.

(Hood County Road 230 is the same as

" Heritage Trail", which is located at the entrance of

" Heritage Heights".) Turn left onto Hood County Road 230 and drive approximately 0.7 of a mile to the siren.

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CPSES ISSUE DATE PROCEDURE NO.

EMERGENCY PLAN MANUAL JUN 10 M EPP-309 OFFSITE RADIOLOGICAL MONITORING REVISION NO. 6 PAGE 25 0F 34

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ATTACHMENT 4 PAGE 1 OF 5 METHODS FOR OFFSITE RADIOLOGICAL SURVEYS Dose Rate Measurement Procedure 1.

With the dose rate meter held at waist level (approximately three (3) feet above the ground), take window-open and window-closed measurements.

2.

Record the result on Form EPP-309-3 along with the other required information, listed on this sheet.

NOTE: Direct contact with the plume is indicated if the measured beta radiation is significant, i.e.,

if a significant difference is observed between the window-open and window-closed meter readings. Conversely, the absence of beta radiation is indica-tive of exposure to " sky shine radiation" (gamma radiation from plume overhead).

Air Sample Collection 1.

Mark an "X" on the coarse (air inlet) side of a clean 47 mm particulate filter. Assemble the particulate filter (marked side out) and silver zeolite cartridge in the sampling head with the flow arrow pointing in.

NOTE: The silver zeolite (AgX) cartridge also has a lip on it which prevents it from being inserted into the filter head in the wrong air flow direction.

2.

Place the filter head on the sampler.

CAUTION: Ensure sampler is off and the flow adjust is set to minimum value prior to plugging it into the inverter.

3.

Plug the sampler into the inverter.

4.

Start the vehicle's engine and turn on the sampler, noting the time on Form EPP-309-la and slowly adjust the flow rate to 2 CFM.

NOTE: Sampler flow rates greater than 2 CFM will overload the inverter.

5.

Allow the sampler to run until at least 10 ft' of air is collected.

The preferred volume is 30 ft ; however, the actual volume desired is dependent upon the time available and the dose rate levels experienced p

I at the monitoring location.

CPSES ISSUE DATE PROCEDURE NO, EMERGENCY PLAN MANUAL JUN101!B6 EPP-309 OFFSITE RADIOLOGICAL MONITORING REVISI7d NO. 6 PAGE 26 0F 34

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ATTACHMENT 4 PAGE 2 0F 5 METHODS FOR OFFSITE RADIOLOGICAL SURVEYS 6.

Stop the sampler, remove the particulate filter and iodine cartridge being careful not to cross-contaminate the filter cartridge or filter h ead. Bag and label the filter and cartridge with the sampling time and volume collected on Form EPP-309-la.

Gross Iodine Activity Determination 1.

Take a background measurement using the countrate instrument and record the value.

NOTE:

If a high background is present, the team should proceed to a low background area to count the sample cartridge.

2.

Place the probe directly adjacent to the inlet side of the cartridge

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and measure the count rate. Record this value.

3.

Bag and label the cartridge in accordance with labeling instructions in subsection 4.1.11.

J 4.

Calculate the gross iodine concentration as follows:

(1.59 X 10-11) (gross count rate - bkg count rate)

(E ) (E ) (sample volume, f t.')

y where:

E = Counting efficiency factor for probe 7

0.1 counts / dis

=

E = Collection ef ficiency for iodine cartridge C

0.8 (assumed)

=

Gross Particulate Activity Determination 1.

Take a background measurement using the count rate instrument and record the value.

NOTE: If a high background is present, the team should proceed to a low background area to count the filter sample.

2.

Place the probe directly adjacent to the inlet side of the particulate filter (side marked with "X") and measure the count rate. Record this f-value.

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CPSES ISSUE DATE PROCEDURE NO.

EPP-309 EMERGENCY PLAN MANUAL M 10 m

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OFFSITE RADIOLOGICAL MONITORING REVISION NO. 6 PAGE 27 0F 34 ATTACHMENT 4 PAGE 3 0F 5 METHODS FOR OFFSITE RADIOLOGICAL SURVEYS 3.

Bag and label the filter in accordance with labeling instructions in subsection 4.1.11.

4.

Calculate the gross particulate concentration as follows:

(1.59 X 10

) (gross count rate - bkg count rate)

(E ) (E ) (sample volume, ft')

g p

where:

E = Counting efficiency for probe g

0.1 counts / dis

=

E = Collection ef ficiency for particulate filter F

0.9 (assumed)

=

Ground Survey (Direct Scan) 1.

The ground measurement should be made in an undisturbed, open area away from vehicles, buildings, roads, excavated areas or piled gravel or soil.

2.

Take a radiation measur e nt with the count rate instrument while holding the probe not more than two (2) inches above the ground surface with the probe window facing down.

If there is an indication of the plume passing at the time of this measurement, do not perform a direct scan ground survey but take a smear ground survey using the instructions given below.

If there is no indicatien of the plume, continue with these instructions.

NOTE: Care shall be exercised to prevent puncture of the mylar window or contamination of the probe.

3.

Calculate the ground deposition as follows:

uC1/m

= (E ) (gr ss count rate - 30 CPM) 2 2

where:

E = Counting efficiency factor for a pancake probe 2

2

= 0.0028 uCi/m / CPM 30 CPM = Background count rate (assumed)

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4.

Record this data on Form EPP-309-lb.

CPSES ISSUE DATE PROCEDURE NO.

EPP-309 EMERGENCY PLAN MANUAL M 10 m

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OFFSITE RADIOLOGICAL MONITORING REVISION NO. 6 PAGE 28 0F 34 ATTACHMENT 4 PAGE 4 0F 5 METHODS FOR OFFSITE RADIOLOGICAL SURVEYS Ground Survey (Smear) 2 1.

Using a two (2)-inch smear pad, swipe a 100 cm area.

NOTE: The area to be swiped should be a flat, smooth area (e.g., a car hood other than that of the team vehicle).

2.

Take a background measurement using the count rate instrument and record this value.

NOTE: If a high background is present, the team should proceed to a low background area to count the smear sample.

3.

Take a count rate measurement holding the GM probe d'rectly adjacent to the smear pad while taking care not to contaminate the probe.

Record this value.

4.

Bag and label the smear pad in accordance with labeling instructions G

in subsection 4.1.11.

5.

Calculate the smearable concamination as follows:

(gross count rate - bkg count rate) 2 DPM/100 cm (E )j where:

E = Counting efficiency factor for a pancake probe 3

0.1 counts / dis

=

Soil Sample Collection 1.

Soil samples are used to evaluate the consequences of any food chain contamination or direct radiation hazard following an airborne release. Normally, soil samples are collected after the plume has passed and evaluated at a laboratory facility.

2.

To collect a soil sample, remove only the top surface of the soil (to 2 area. The soil sample should be a depth of 1/4" or less) from a 1 m collected from a clear area which is free of vegetation.

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3.

Place the soil sample in a bag, and seal and label the sample bag in (m,/

accordance with labeling instructions in subsection 4.1.11.

CPSES ISSUE DATE PROCEDURE NO.

" #-3 '

EMERCENCY PLAN MANUAL 10 M 0FFSITE RADIOLOGICAL MONITORING REVISION NO. 6 PAGE 29 0F 34

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ATTACHMENT 4 PAGE 5 0F 5 METHODS FOR OFFSITE RADIOLOGICAL SURVEYS Vegetation Sample Collection 1.

Vegetation samples are used to evaluate the consequences of any food chain contamination following an airborne release. Normally, vegetation samples are collected after the plume has passed and evaluated at a laboratory facility.

2.

To collect a vegetation sample, cut the vegetation at a height of 1 to 2 centimeters above ground level to approximate what a grazing animal 2

would consume. Remove the vegetation from an approximately 1 m area, using caution not to shake off any deposited contamination.

3.

Place the vegetation in a bag, and seal and label the sample bag in accordance with labeling instructions in subsection 4.1.11.

Liquid Sample Collection 1.

Liquid samples are used to evaluate the consequences of any food chain 9

and water supply contamination following an airborne release.

Normally, liquid samples are collected after the plume has passed and are evaluated at a laboratory facility.

NOTE: Sources of water to be sampled should normally be undisturbed, stationary bodies, such as ponds or cattle troughs.

2.

To collect a liquid sample, L1merse a one (1)-liter, poly bottle in the water source and completely fill the bottle. Care should be taken to avoid getting the potentially contaminated water on the skin.

3.

Place the bottled liquid sample in a bag, and seal and label the bag in accordance with labeling instructions in subsection 4.1.11.

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CPSES ISSUE DATE PROCEDURE NOe EMERGENCY PLAN MANUAL JUN 10 m EPP-309 0FFSITE RADIOLOGICAL MONITORING REVISION NO 6 PAGE 30 0F 34 ATTACHMENT 5 PAGE 1 0F 3 RADIOLOGICAL MONITORING DATA SHEET Texas Utilities Generating Company Comanche Peak Steam Electric Station RADIOLOGCAL MONITORING DATA SHEET Page: 1 of 3 Bote:

When tranesitting survey data g those "Bozed" itees en this fetu will actually be transmitted.

Team No.

Leader Member Time of survey hrs Date Survey Location l l

1 Pau i

..ta - D.

ta,e,u -ev, Instrument Model No.

Instrument Serial No.

Cal. Due Date Beta )

l t/hr Window Closed (y) l l 'aR/hr Windov l

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Onlyi Opea (8+y)1 laA/hr Ia Pan 2 Air sampler Datar Air Sampler Used Stop Duration Flow late Sample Volume Start Time (min)

(C7M)

Time s

It I

Airborne Radiciodine Concentratteer Instrument Model No.

Instrument Serial No.

Cal. Dua Date Probe O

Skg*

Bet Sample Vol.

Cross CFM CFM (ft )

s CFM l

l,ggj,,

x 2 t-10

=

G

. Cs..

...ro d.t t _ t

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CPSES ISSUE DATE PROCEDURE NO.

EMERGENCY PLAN MANUAL EPP-309 M 10 m OFFSITE RADIOLOGICAL MONITORING REVISION NO. 6 PAGE 31 0F 34 ATTACHMENT 5 PAGE 2 0F 3 RADIOLOGICAL MONITORING DATA SHEET Texas Utilities Generating Company Comanche Peak Steam Electric Station RADIOLOGICAL MONITORING DATA SHEET Page:

2 or 3 f

Part 6 Airborne Particulate Concentrattoes Instrument Medal No.

Instrument Serial No.

Cal. Due Date Fr2e O

O Gross

~

Skg*

set Sample 7o1.

s CFM CFM CFM (ft y l

l,cgfe, s 1. M E-M

=

l

  • Use actual background at counting 1ccation.

Part 5 cround Surve, (direct scan):

In.trument Model No.

Instrument Serial No.

Cal. Due Date Probe Skg*

Net Counting Groe.s CFM CFM Eff.

=

CFP yCi/s' Part 6 Cround Surve, (saear):

i lastrument Model No.

Instrument Serial No.

Cal. Due Date Probe G

Gross Skg*

Bet CFM CFM CFM b

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l 0.1 I

IDFM/100 en*

e Cse actual background at counting locattoa.

O EPP-200-1b 07090s i

CPSES ISSUE DATE PROCEDURE N0s EMERGENCY PLAN MANUAL Jim 101986 EPP-309 0FFSITE RADIOLOGICAL MONITORING REVISION NO. 6 PAGE 32 0F 34 ATTACHMENT 5 PAGE 3 0F 3 RADIOLOGICAL MONITORING DATA SHEET Texas Utilities Generating Company Comanche Peak Steam Electric Station RADOLOGICAL MONITORING DATA SHEET Page: 3 of 3 Part ?

Environment TLD:

Requested TES/NO Removed TLD 5o.

TLD tesults at Date/ Time:

E:

Of f site monitoring teams shall collect environmental TLD's d when directed to by the Offsite Radiological Assessment Coordinator. Onsite Radiological Assessment Coordinator, er the taergency Coordinator.

Part 8 Other Data or Renarks*t

  • Transmit important data or remarka only; do not transmit casual notes.

Transmitted by:

Name - Print and Sign Date/ Time 0

070946 EPP-300-1c l

CPSES ISSUE DATE PROCEDURE NOe EPP-309 EMERGENCY PLAN MANUAL M 10 W 0FFSITE RADIOLOGICAL MONITC?ING REVISION NO. 6 PAGE 33 0F 34

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ATTACHMENT 6 PAGE 1 0F 1 COMMUNICATOR'S RADIATION MONITORING DATA SHEET Texas Utilities Generating Company Comanche Peak Steam Electric Station Communicator's Radiological Monitoring Data Sheet Survey Location Team No.

Time of Survey Date PART 1: Bet a-Camma Dose Rate Survey Window Window Seta Open (B+Y) aR/hr Closed (Y) mR/hr only mR/hr PART 2: Air Sample volume Sample volume ft3 PART 3: Airborne Radiciodine Concentration Concentration uCi/cc PART a: Airborne Particulate Concentration Concentration pCi/cc PART 5: Creund survey (direct scan)

Cround Contamination uCi/s2 PART 6: Ground Survey 'b,wg Smearable Contamination DPM/100 cm2 FART 7: Environmental TLD Requested TES/MO TLD NO.

TLD Results mA Date/ Time i

PART 8: Other Data or Remarks Received by:

Date/ Time m

(Prtat and Sign)

(N E P P-S G9-t MV.04330s

CPSES ISSUE DATE PROCEDURE NO.

EMERGENCY PLAN MANUAL JW10 m EPP-309

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0FFSITE RADIOLOGICAL MONITORING REVISION NO. 6 PAGE 34 0F 34 ATIACHMENT 7 PAGE 1 0F 1 DOSE RATE MEASUREMENTS DATA SHEET Texas Utilities Generating Company Comanche Peak Steam Electric Station Dose Rate Measurements Data Sheet Date Team No.

Team Member Signatures Instrument Serial No.

Battery Check OK YES/NO Zero Adjust OK YES/NO Sector Meter Reading (mR/hr)

Team or Specific

  • Window
  • Window
  • Beta Dosimetry j

1 Time Elevation location Open (B+y), Closed (y)

Only Check Ccaments

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  • transmit this data only to communicator j

EPP-399-8 mEv.04ases l

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