ML20042B124

Public Version of Revision 2 to Emergency Plan Implementing Procedure OP-3310, Evaluation of Radiological Data

ML20042B124
Person / Time
Site:	Yankee Rowe
Issue date:	03/10/1982
From:	YANKEE ATOMIC ELECTRIC CO.
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NUDOCS 8203240590
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i CHANGE 8 TO THE YANKEE R0WE EMERGENCY PLAN - IMPLEMENTING PROCEDURES 1.

Following the tab " TABLE OF CONTENTS" remove existing table of 1

contents and insert attached table of contents dated March 10, 1982, Revision 8.

2.

Following the tab " EVALUATION OF RADIOLOGICAL DATA" remove existing procedure and insert attached procedure, Revision 2, along with' the attached DOCUMENT NOTICE OF REVISION IN PROGRESS dated 2.25.82.

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7 March 10,1982 Rev. 8 '

YANKEE NUCLEAR POWER STATION IMPLEMENTING PROCEDURES TO THE EMERGENCY PLAN TABLE OF CONTENTS TABLE OF CONTENTS Rev. 0 I

CONTACT LIST Rev. 1 i

IMPLEMENTING PROCEDURES 1

Classification of Emergencies -

OP-3300 Rev. 0 -

Unusual Event OP-3301 Rev. 2 j

I Alert OP-3302 Rev. '3 j

Site Area Emergency OP-3303 Rev. 3 General Emergency OP-3304 Rev. 1 l Evaluation of Radiological Data OP-3310 Rev. 2 Emergency Off-Site Radiation Monitoring OP-3311 Rev. 1 Emergency Deescalation Procedure OP-3321 Rev. 0

)

Emergency Radiation Exposure Control OP-3330 Rev. 1 i

Emergency Medical Procedure OP-3305 Rev. O i

Security Force Actions Under Emergency l

Conditions OP-3344 Rev. 1 r

Release of Public Information IJnder Emer-

)

i gency Conditions OP-3343 Rev. O Coordination' and Communications During an Emergency OP-3345 Rev. 0 7

Vital Computer System Operation Under Emergency Condidons OP-3346 Rev. 0 1

F i

SUPPLEMENTAL PROCEDURES t

Emergency Plan Training OP-3340 Rev. O i

Emergency Preparedness Exercises & Drills OP-3341 Rev. 0 Emergency Equipment Readiness Check OP-3305 Rev.1 J

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Proc. No.

OP-3310 Rev. No.

2 Date 82/03 EVALUATION OF RADIOLOGICAL DATA SCOPE To assess the of f-site radiological hazards due to an abnormal release of radioactive material by evaluating information received from within the plant' at effluent points, the off-site radiation monitoring teams,

.and the environmental monitoring stations, so that appropriate pro-tective actions may be recommended.

ENCLOSURES l

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OP-3310 - Pgs. 1 Rev. 2 Appendix A - Pgs. 1 Rev. 2 OPF-3310.1 - Original OPF-3310.2 - Pgs. 1 Rev. 2

-Appendix B - Pgs. 1 Rev. 2 OPF-3310.3 - Pgs. 1 Rev. 1 l

OPF-3310.3 - Pg. 3 - Rev. 2 j

OPF-3310.4 - Rev. 1 Appendix C - Pgs. 1 Rev. 2 OPF-3310.5

.8 - Rev. I k

OPF-3310.9 - Pg. 1 - Rev.-2 OPF-3310.9 - Pgs. 2 Rev. 1 Appendix D - Pg. 1 - Rev. 2 OPF-3310.10 - Rev. 1 l

Attachment A - Pgs. 1 Rev. 1 Appendix E - Pgs. 1 Rev. 2 OPF-3310.11 - Pg. 1 - Rev. 2 OPF-3310.12 - Pg. 1 - Rev. 2 e

REFERENCES:

.I Yankee Rowe Nuclear Power Station Emergency Plan.

3 DISCUSSION Radiological assessment is made to the extent of projecting doses / dose rates to the public from each source of information. The dose rate projections produced by this procedure represent the best estimate possible for each method.

If projections from in-plant paramenters are

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significantly different than those measured in the environment, it may be due to meteorological modeling and/or due to inaccuracies in release rate estimates. The results obtained from this precedure should be carefully analyzed since these may form the basis for protective action recommenda-tions to the public.

There are two areas from which information will be available for the analysis of radiological hazards; in plant (stack effluent monitor, containment source term, or steam line effluent) and off-site field

-~

__ monitoring surveys of off-site whole body and thyroid dose rates.

In 7 order to categorize the-different techniques used to evaluate the rajio-logical hazards, the procedure has been divided into several appendices listed as follows.

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. OP-3310 Rev. 2 APPENDIX TITLE A

Whole body dose rate projections at 1/2 mile from the use of in plant parameters.

B Evaluation of Off-Site Particulate and Iodine Concen-trations C

Radiological Conditions Projection To Other Distance's Of Interest D

Evaluations of Environmental Station samples, and other environmental sample media.

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E Protective Action Recommendations for the Public.

These appendices should be used in the order that they appear since.they are arranged in the order of priority. A brief description of the appendices and the interpretation of the results is given below. Each appendix uses the current meteorology conditions and therefore these-parameters should be periodically monitored for significant changes.

NOTE:

Responsibility for performing each appendix is addressed. However, any of these appendices may be performed by the Emergency Coordinator, Tech-nical Support Center (TSC) Coordinator or the Emergency Director interchangeably with the assistance of whoever they designate (qualified individual).

Interpretation of Appendix A results is initally the 'irect respon-l sibility of the Emergency Director. The Shift RP Technician will be assigned to assist the Emergency Director in the evaluation of Appendix A. Appendix A is used to obtain an estimate of the offsite whole body dose rate at 1/2 mile due to a high level stack release, containment release or steam line effluent release during a loss of coolant accident (LOCA). To initiate Appendix A it must first be determined if a release is occurring. This is accomplished in the Control Room through observa-tions of various plant parameters and process monitoring systems.

This appendix uses the Emergency Offsite Dose Nomogram which requires the following inputs: ' time af ter shutdown, turbine hall accident area radi-l ation monitor dose rate, _ (wind speed, delta temperature) (for atmospheric stability class), and the high range noble gas monitor response. The information obtained from the Nomogram is Total Noble Gas Release Rate and Of fsite Whole Body Dose Rate at 1/2 mile.

It must be acknowledged that information obtained from the Containment Leakage Nomogram is very conservative since it assumes a containment leakage of 0.1% per day which is the maximum allowed design basis leakage at peak containment pressure.

Correction for actual' containment pressure is included in this appendix.

NOTE:

There may be more than one release pathway in progress.

If se a summation of release rates and off-site dose projection must be done. This

" sum" is to be used in final evaluatid~n as in-dicated on Data Reduction Sheet A.

• OP-3310 Rev. 2 Appendix B is separated into two sections. The first describes the method by which the air samples at the stack should be analyzed and evaluated to obtain concentrations at 1/2 mile.

This section is the responsibility of the TSC Coordinator. The TSC Coordinator may call upon Chemistry and/or RP personnel located in..

the OSC to assist in this section. From this result, the " Field Sample Thyroid Dose Nomogram" may be used to obtain adult and newborn thyroid dose estimates per unit inhalation time and air sample concen-

'trations, The second section describes the methods to be used to evaluate the y

l results reported by the offsite survey teams from the air sample field counting and to analyze the charcoal cartridge at the EOF for more accurate radiological estimates. This section is the responsibility of j

the Radiological Evaluation Assistant. These results are also used in conjunction with the field sample thyroid dose Nomogram to obtain adult and newborn thyroid doses per unit inhalation time.

Appendix C will be the responsibility of the Radiological Evaluation j

Assistant. Appendix C describes the method to be used to project the in-plant estimates of whole body and thyroid dose rate to distances greater than 1/2 mile. The results of these projections should be compared to the field sample measurement performed by the Offsite Survey Teams.

In the l

event that these measurements are significantly different, it may indicate one of the following:

a)

Errors in release rate estimates.

b)

Meteorological conditions have changed rapidly, or c)

Actual plume dispersion. disagrees with model.

Appendix D calls attention to the use of the environmental station's samples, soil and other environmental sample media to be used for dose assessment to the public during the later stages of the accident. The analysis of these samples will be made by the Yankee Environmental Lab.

This section describes sample collection and labelling techniques that should be employed.

Appendix E covers the determination of public protective actions. This section is performed by the Radiological Evaluation Assistant (REA). The Emergency Coordinator approves and makes the final recommendations to the States.

PRECAUTIONS 1.

Meteorological conditions are subject to change and must be closely monitored during the potential radiological hazard.

2.

Results of the different dose projection methods must be carefully compat for a complete evaluation of the radio-logical offstte conditions.

• OP-3310

-Rev. 2 PROCEDURE:

NOTE:

At each stage of the procedure, pass the appropriate information to the Emergency Coordinator or Director whichever is the cognizant individual so that appropriate i

protective actions may be recommended.

1.

Upon notification of an Emergency condition, complete the steps in Appendix A to determine the offsite whole body dose rate at 1/2 mile.

2.

Once the PVS a-r samples have been analyzed or offsite air samples have -been collected, determine the 1/2 mile offsite projected thyroid dose per unit inhalation time and evaluate the particulate concentra-tion as described in Appendix B.

If this sample has not been taken proceed to Step 3.

3.

After the 1/2 mile projected dose rates have been determined, go to Appendix C and calculate projected dose rates as other locations of interest.

4.

Under the direction of the Emergency Coordinator, or a designa-ted representative make provisions to collect the air samples at the environmental ~ sample stations and other environmental samples (soil, water vegetations, milk, etc.) as outlined ir; Appendix D.

5.

Once the EOF is staffed the REA determines protective action re-commendations per Appendix E.

The Emergency Coordinator approves and transmits the recommendation to the States.

6.

As updated information beccmes available, repeat the steps in each l

Appendix as appropriate.

FINAL CONDITIONS l

1.

The Radiological hazard associated with the plume exposure pathway I

has been defined by the best means available.

2.

All calculated and measured parameters have been logged on the appropriate data reduction forms.

3.

All information and data forms have been given to the Emergency Coordirator, TSC Coordinator or Emergency Director as appro-priate for Protective Action Reccmmendations.

Environmental Sampkes have been collected and analyzed for more j

4 refined dose assessment determinations.

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%p APPENDIX A OP-3310 Rev. 2 Appendix A Whole Body Dose Rate Projections At 1/2 Mile from In-Plant Parameters A.I. Determine the value of the following parameters and log-them on Data Reduction Sheet A.

A.1.1 Time after shutdown, t (ERS)

(If reactor is operating, set t = 0 HRS)

A.I.2 Turbine hall accident area radiation moniter D AARM (R/hr)

(If applicable)

A.I.3 liigh range noble gas stack monitor respoi.se, Ds (mr/hr)

(If applicable)

NOTE:

If this monitor is less than 1 mr/hr then negligible offsite dose rates will result.

I (Go to next step)

A.1.4 Steam line radiation levels (if applicable).

1.

Affected steam line 2.

Steam line radiation level, Dgg (mr/hr)

A.1.5 Wind Speed (previous 15 minute average), u (mph)

NOTE:

If the meteorological data available for wind speed is in units of meters /sec., then convert this unit to miles per hour (mph) as follows:

p (mph) = p (m sec)(2.237)

A. I.6 '

Met Tower Delta Temperature, AT ( F) l A.I.7 Wind Direction (see OPF-3310.2, Page 3)

A.I.8 Number of Primary Vent Stack (PVS) Fans Operating A.1.9 Containment Pressure, Pc (PSIG)

A.2 From the following table and the value of AT, determine the atmos-pheric Stability Class and log it on Data Reduction Sheet A.

DELTA TEMPERATURE PASQUILL ATMOSPHERIC AT ( F)

STABILITY CLASS

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<aT 5 - 1.71 A

-1.71 <ST 5 - 1.53 B

-1.53 <aT 5 - 1.35 C

-1.35 <aT 5 - 0.45 D

-0.45 <aT 5 + 1.35 E

+1.35 <aT 5 + 3.60 F

+3.60 <aT.

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--2 OP-3310 Appendix A Rev. 2 A.3 From the turbine hall accident area radiation monitor (AARM), re-sponse, determine the LOCA designation from the following table and log it on Data Reduction Sheet A.

TURBINE HALL ACCIDENT AREA LOCA TYPE RADIATION MONITOR RESP.D AARM DESIGNATION OF LOCA O < D AARM < 0.1 R/hr MC Leakage Large Primary Coolant Leak 0.1 R/hr < D AARM < 102 R/hr II Gap Release LOCA D AARM > 102 R/hr III Fuel Melt LOCA A.4 If the turbine hall accident radiation. monitor (AARM) response is.

2 greater-than 10 R/hr, then determine the total noble gas release f

rate and the 1/2 mile whole body dose rate using the Containment i

Leakage Nomogram as described below. Log these results on Data Reduction Sheet A.

If this monitor is less than 102 R/hr, go to i;

Step 5 since offsite dose will be negligible; A.4.1 Locate the " Time af ter shutdown" axis, at the appro'priate value of t(hrs), draw a vertical line through the curves of parameters

'f' and

'J'.

A.4.2 At the intersections of this vertical line witb the appro-priate LOCA designation curves of parameters 'i' ard

'J',

draw a horizontal line to the right, through the appro-priate diagonal lines of " Release Rate" and AARM.

A.4,3 From the parameter J horizontal line locate the intersection the appropriate AARM response and proceed vertically 7

downward and read the value of the " Noble Gase Release Rate, Q(pC1/sec)". Record this value on Data Reduction. Sheet A.

A.4.4 From the parameter ' f' horizontal line, locate the inter-section of the appropriate " Release Rate" diagonal lines (as determined in Step A.4.3), proceed vertically upward.

At the intersection of the appropriate " ATMOSPHERIC STA-BILITY CLASS", proceed horizontally to the right. At the appropriate wind speed intersection, proceed verti-cally upward and read the value of the "0FFSITE DOSE RATE"

@ 1/2 Mile, mr/hr.

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NOTE:

This release rate and dose rate is assumed to be for 0.1%/ day leakage at a containment pressure of 34 psig.

A.4.5 To correct for actual. containment pressure, multiply the I

release rate and off-site 1/2 mile dose rate by Pc (PSIC) 34 PSIG 6

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I A.5 If the PVS normal range noble gas monitor response is off scale i

high,' then determine the total noble gas release rate and the 1/2 mile whole oody rate using the STACK RELEASE NOMOGRAM as i

described below. Log these results on Data Reduction Sheet A.,

If the high range PVS monitor is off scale low and the normal i

range PVS is OFF SCALE high, assume a reading of 1 mr/hr for the high range PVS monitor.

j A.5.1 Locate the " Time Af ter Shutdown" axis, at the appropriate value of t(KRS), proceed vertically upward.

s A.S.2 At the intersection of the appropriate LOCA designation curve of parameter J, draw a horizontal line to the right, through the "PVS High Range Monitor" diagonal lines.

4 A.S.2 At the intersection of the horizontal line from parameter J i

with the appropriate.value of the "PVS High Range Monitor" response,. proceed vertically downward and read the 'alue of v

the appropriete " Noble Gas Release Rate, Q(pCi/sec)" fr 1 or 2 PVS fans operating.

Record this value on Data Re-duction Sheet A.

A.5.4 At the intersection of the horizontal line from parameter J with the appropriate value of the "PVS High Range Moni-tor" response, proceed upward parallel with these lines to the end of the lines. At this point proceed vertically upward to the appropriate " Atmospheric Stability Class" lines. At the intersection with the appropriate " Wind Speed" line, proceed vertically upward and read the value of the "0FFSITE DOSE RATE @ 1/2 Mile, mr/hr" for 1 or 2 i

PVS fans operating. Record this value on Data Reduction Sheet A.

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Rev. 2 A.6 If the safety relief valves or the atmospheric steam dumps have i

been operated and a steam generator tube rupture has occurred refer to OP-8741, " Determination of Noble Gas Release Rates From Main Steam Lines Under Accident Conditions" and calculate the total noble gas release rates.

NOTE:

Release Rates:

1.

Safety Relief Valve, Q(s/r)

Q(s/r) = (2.52 x 10 5)(X mr/hr) 2.

Atmospheric Steam Dump Valve, Q(ASD) 3 Q(ASD) = -(7.02 x,10 )(X mr/hr) 3.

Total Release Rate, Q Q = Q(ASD) + Q(s/r) t i

Using the Containment Leakage Nomogram, determine the Off-Site Dose Rate at 1/2 mile, as follows:

A.6.1 Locate the " TIME AFTER SHUTDOWN" axis correspo'nding to the parameter "f" curves.

A.6.2 From the appropriate value of " TIME AFTER SHUTDOWN" proceed upwards to the intersection of the appro-priate "LOCA" type.

A.6.3 At this intersection, proceed to the right-to the intersection of the value of the release rate-(pCi/sec) determined above.

A.6.4 At this inter'section, proceed vertically upward and read the value of'the "0FFSITE DOSE RATE at 1/2 Mile".

Record this value on the Data Reduction Sheet A.

A.7 Refer all data to the Emergency Director. The Emergency Director will make appropriate notification per OP-3303 and OP-3304, Site, Area and General Emergencies.

l A.8 The Emergency Director shall transmit this information to the EOF as soon asrpossible for protective action recommendations.

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DATA REDUCTION SHEET A

- Whole Body Projected Dose / Dose Rate at 1/2 Mile-I.

Required Input Information:

Date/ Time Calculation //

1 2

3 4

5 A.

Time After Shutdown, t(hr)

B.

AAR1, D AARM (R/hr)

C.

High Range Stack Mon. Ds (mr/hr)

D.1 Affected Steam Line #

D.2 Steamline Dose Rate, Ds1 (mr/hr)

I E.

Wind Speed, p (mph)

F.

AT ( F)

G.

Wind Direction (OPF-3310.2, Page 3)

H.

1. of Stack Fans I.

Containment Pressure, Pc (PSIG)

J.

Stability Class (choose one)

A, B, C, D, E, F or G K.

LOCA Designation (choose one)

MC Leak, II or III L.

Release Path (choose one)

(VC, PVS or Steam Line [SL])

I M.

Release Rate Q from containment (p Curies /Second) j t

i N.

Offsite Whcle Body Dose Rate I

I at 1/2 Mile (mR/hr) from con-tainment 0.

Release Rate trem PV9 l

i (pCi/sec)

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OPF-3310.2 Rev. 2 Page I l

DATA REDUCTION SHEET A

- Whole Body Projected Dose / Dose Rate at 1/2 Mile-Calculation r/

1 2

3 4

5 P.

1/2 Mile W.B. Rate from PVS (pCi/sec)

Q.

Release Rate from SL (pCi/sec)

R.

1/2 Mile W.B. Rate f-om SL (Mr/hr)

S.

Total Release Rate (All Sources) (pCi/sec) l 1

T.

Total 1/2 Mile W.B.

Dose Rate (Mr/hr)

OPF-3310.2 Rev. 2 Page 2

PROCEDURE FOR PROJECTING PLUME TRAJECTORIES BEYOND THE YANKEE PLANT'S EXCLUSION AREA BOUNDARY A.

Atmospheric Stability:

A, B, C, D (aT5 -0.45 F) 1.

Wind Sensors a.

Prima ry Vent Release:

use 60 m wind speed and direction b.

All other release points:

use 10 m wind speed and direction 2.

Plume Trajectory a.

Wind from 350 clockwise through 79 (N through ENE):

Assume downstream trejectory b.

Wind from 80 clockwise through 169 (E through SSE):

Assume cross valley trajectory towards the W-NNW c.

Wind from 170* clockwise through 259 (S through WSW):

Assume upstream trajectory d.

Wind from 260* clockwise through 349 (W through NNW):

Assume cross valley trajectory towards the E-SSE B.

Atmospheric Stability:

E, F, G (aT>-0.45 F) 1.

Wind sensors a.

Prima ry Vent Release: use 60 m wind speed and direction b.

Allotherreleasepo{ggs:

use 10 m wind speed and 60 m Nind direction 2.

Plume Trajectory a.

Wind from 301* clockwise through 120 :

Assume downstream trajectory b.

Wind from 121 clockwise through 300*:

Assume upstream trajectory (a)

TFe 10 m wind direction sensors are of ten affected by localized drainage wind.s flowing down the East slope of the river valley during stable, nighttime hours; however, the plume should remain within the valley under these conditions.

As such, the 60 m wind direction sensor shoul/ be used to determine if an upvalley or downvalley flow prevails.

OPF-3310.2

. Rev. 2 Page 3 g**

APPENDIX B OP-3310 Rev. 2 Appendix B EVALUATION OF OFF-SITE PARTICULATE AND IODINE CONDITIONS B.1 Inplant Analysis of PVS Air Samples.

NOTE:

Proceed to "Section 2 of Appendix B" if PVS sample has not been taken.

B.1.1 Obtain sample according to procedures, OP-8740 and OP-9450.

B.I.2 Once the PVS air samples has been analyzed, on the plant GeLi, (if available) or the SAM II (if plant GeLi is not available) proceed as follows:

B.1.2.1 If counted on the plant GeLi, the primary desired output information is the activity of I-131 (C1) and other particulates. Log this result on Data Reduction Sheet B.

B.1.2.2 If the charcoal cartridge is counted on the SAM II, calculate the activity on the cartridge using OP-8701 and log on Data Sheet B or proceed as follows:

Obtain the net count rate from the sample and the instrument efficiency. Log these results on Data Sheet B.

Determine the sample activity using the lower left quandrant of the " Field Sample Thyroid Dose Nomogram" by locating the I-131 Count Rate (cpm)" axis, proceed toward the right to the appro-priate counting efficiency (%), then proceed down and read the " SAMPLE ACTIVITY", pCi (I-131).

Re-cord this result on Data Reduction Sheet B.

B.1.2.3 If the particulate filter is counted on the RM-14/HP 210 probe, repeat the Steps in B.2 using a counting efficiency of 10% for mixed particulates. Record this i

result on Data Sheet B.

B.I.3.

Determine the concentrations of iodines and particulates at 1/2 mile as follows:

B.I.3.1 Determine the stack release factors,

'X' and

'Y',

and log on Data Sheet B.

X=f*7 (sec 1) and Y = 2.22 - (Y

)

p(mpn.)

(see m 3]

Q NOTE:

If the available meterological data for wind speed is in ~ units of meters /sec, then eliminste the 2.22 conversion factor from the above equation defining parameter Y m ~ -

. OP-3310 Appendix B Rev. 2 Where:

Ts = PVS flow rate (CFM)

For 1 Fan, Fs = 20,500 CFM

^

For 2 Fans, Fs = 40,000 CFM i

t = Time since beginning of release that cartridge.

was in sample stream, sec.

Fg = Flow rate through PVS air samples,.CFM

{

p = 15 min. average wind speed (mph)

{

pX/Q = 1/2 mile elevated release concentration diffusion factor from OPF-3310.7 B.1.3.2 Calculate the release rates and the 1/2 mile concentrations of iodine and particulates as indicated below, then log the results i-on Data Sheet B.

2

• Release Rate, Q (Ci Sec.

1) 5 Q (Ci Sec.

1) = A, (Ci)

• X Where A = Activity of the PVS air sample (Ci) g l

• Concentration, C(pCicm 3), at 1/2 mile; l

C (pCicm 3) = Q(Ci Sec 1)

.Y B.I.4.

Determine the Projected Adult and Newborn Thyroid Dose as follows:

1 Using the " Field Sample Thyroid Dose Nomogram" determine the appropriate Projected Dose Rates as follows:

B.I.4.1 Locate the "I-131 air concentration, pCi/ce" axis.

B.1.4.2 From the appropriate concentration value,' proceed vertically upward to the one hour inhalation time value.

B.1.4.3 From this intersection proceed horizontally to the right and read the value of the Adult and Newborn Thyroid Dose. The dose rate estimate is the thyroid dose for every hour of inhalation.

Log these results on Data Sheet B.

B.1.5.

Report projected thyroid dose rates and the particulate concentra-l-

tions to the Emergency Coordinator.

~

I i

i g}

f 4

w.-e,

~_..

. OP-3310 Appendix B Rev. 2 B.2 Analysis of Jffsite Air Sample Results e

B.2.1 Obtain the following survey team sample results, sample location code, sample flow ' ate (CFM), sample collection r

t,ime and sample count results.

Log them on Data Sheet B.

NOTE:

If significant positive net counts-are reported from offsite monitoring teams, have the iodine sample analyzed on the SAM II per OP-8701 or on the in-plant GeLi system.

B.2.2 Using the " Field Sample Thyroid Dose Nomogram" and the above information, determine the Adult and Newborn Thyroid Dose Rate as follows:

B.2.2.1 Locate the "I-131 Count Rate (cpm)" axis (lower left quadrant).

B.2.2.2 From the appropriate epm value, proceed to the 4

right to the I-131 counting efficiency line.

NOTE:

. RM-14 efficiency is 0.24%

. SAM-2 efficiency must be obtained from the top of the instrument.

. For Gel'i analysis, obtain sample activity (pCi) and enter N6mogram at the " Sample Activity, pCi (I-131)"

axis.

B.2.2.3 From this point, proceed vertically upwards to the appropriate " Sampling Flow Rate" line.

B.2.2.4 Proceed horizontally to the right to the value of the sample collection time.

B.2.2.5 From the point proceed vertically downward to the estimate of the " Inhalation Time (hours)" line.

B.2.2.6 From this line, proceed horizontally to the right and read the value of the Adult and Newborn Thyroid Dose Estimate.

Log these results on Data Sheet B.

B.2.2.7 Report projected do.e rate results to the Emergency Coordinator.

B.2.2.8 Update Status Board.

B.2.3 By using the " Field Sample Thyroid Dose Nomogram" and the survey team particulate filter sample results, determine the particule airborne conce.itretion as follows:

B.2.3.1 Locate the " Particulate Sample" count rate (CPM) using the "l-131 Count Rate" axis.

B.2.3.2 From the appropriate CPM value, proceed to the rignt until you intersect the 10% counting effi-ciency line.

. OP-3310 Appendix B Rev. 2 B.2.3.3 From this point, proceed vertically upwards until you intersect the appropriate " Sampling Flcw Rate" line.

B.2.3.4 From this point, proceed horizontally to the right to the appropriate value of the sample collection time.

B.2.3.5 From this point, proceed vertically downard until you intersect the "I-131 Air Concentration" line.

This value read at the intersection point will correspond to the gross (,y) particulate air con-centration for the sample.

Report this result to the Emergency Coordinator.

t t

t e==

6 D

f t

9

l -

DATA REDUCTION SHEET B l

EVALUATION OF 0FF-SITE PARTICULATE AND IODINE CONDITIONS I,,

PVS AIR SAMPLES - ANALYSIS A.

Collect the following information:

Date/ Time.

Date/ Time Stack Flow Sample Sampling (pX/Q)

PVS Sample Sample Sample Rate Flow Time 1/2 mile Number Off Count CFM Rate (CFM) t (sec)

B.*

Calculate Release Rates PVS PVS Sample Activities, A,(Ci)

Release Factors Release Rate, Q (Ci Sec) r x Sample Part.

Iodine - 131 X

Y Part.

Iodine-131

'r/

(sec 1) (Sec m 3) l i

i z.

h I

i C. Calculate Concentrations and Thyroid Dose Rate P

l i

PVS 1/2 Mile Conc., pCi/cc Thyroid Dose Rate, Rem /hr, I-131 Sample Part.

1-131 Adult Newborn il OPF-3310.3

~

~

Appendix B

"-~

Rev. 1

.Page 1

1 I

DATA REDUCTION SHEET B b EVALUATION OF OFF-SITE PARTICULATE AND IODINE CONDITIONS i

II. ANALYSIS OF OFF-SITE AIR SAMPLES h

A. ~ Field Analysis Sample Sample Time Sampling Particulate Filter IIodine Cartridee l

Location Flow Rate Sample-Duration RM-14 Part.

RM-14 Thyroid Dose (rem /hr) j Code (CFM)

On/Date (min)

CPM (pCi/ce)

CPM Adult Newborn

[

l 1

i

/

l l-1 B.

. EOF Analysis of Iodine Cartridge (SAM II) l I

l Sample Sampic Time Sampling Particulate Filter Iodine Cartridge Location Flow Rate Sample Duration RM-14 Part.

RM-14 Thyroid Dose (rem /hr) l 1

Code (CFM)

On/Date (min)

CPM (pCi/ce)

CPM Adult Newborn 1

t v;

j l,'

I v

f e

f s

i i

l 4,

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j OPF-3310.3

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s

DATA REDUCTION SHEET B Thyroid Dose Assessment From Inplant and Offsite Measurements I.

Inplant Measurements (PVS Release)

B PVS Sample 1/2 Mile I-131 X/Q.3)

Concentration Sample Activity PVS I-131 1/2 Mile p

2 (aci/cc)

//

Ci (I-131)

Q (Ci/sec) p X/Q, M (p/sec)

(see m 1

2 3

4 5

C.

Projected Thyroid Doses (from " Field Sample...." Nonogram) 1-131 Conc.

Projected Thyroid Dose Rate Sample

@ 1/2 Mile (From Above)

Adult Newborn 1

2 3

4 5

IT Of fsite Samole Analysis SAM II ANALYSIS Sample Sample Flow Collection Thyroid Dose Rate Location Rate Time CPM Adult Newborn l

I i

t C

OPF-3310.4 Rev. I

APPENDIX C OP-3310 Appendix C Rev. 2 Page 1 RADIOLOGICAL CONDITION PROJECTIONS TO OTHER DISTANCE OF INTEREST NOTE:

Record all data on the Data Reduction Sheet C as this Appendix is performed.

C.1 Whole body dose / dose rate projections NOTE:

Whole body doses / dose rates may be projected from

, to any other distance, Xt whether any distance, X,is measured by off-site teams or the value at X calculated from Appendix A.

C.1.1 Obtain the value of whole body dose / dose rate at any distance from the site, Xo (radial distance).

l C.1.2 Determine the present stability class (see OPF-3310.9, Page 1)

C.I.3 From the above sta'aility class, determine the value of the EFFECTIVE GAMMA DOSE DIFFUSION FACTORS, (pX/Q)Y, for the distance Xo and desired distance, X, for the appropriate

~

release height on OPF-3310.5 or OPF-3310.6. Log these values on Data Reduction Sheet C.

NOTE:

O_NLY A STACK RELEASE IS CONSIDERED AS ELEVATED C.I.4 Determine the whole body dose / dose rate at distance X, as follows and log on Data Sheet C.

(p X/Q)Ty D

=D xt xo (p X/Q)T Xo t

e W

4*

' OP-3310 Appendix C Rev. 2 C.2 Thyroid Dose or Air Concentration Projections NOTE:

Thyroid dose or air concentrations may be projected from any distance, Xo to any other distance, X, t whether the value at Xo is reasured by off-site teams or calculated from Appendix A.

C.2.1 Obtain the value of thyroid dose or air concentration at any distance from the site, Xo (radial distance).

C.2.2 Determine present stability class (see OPF-3310.9, Page 2)

C.2.3 From the above stability class, determine the value of the CONCENTRATION DIFFUSION FACTORS (pX/Q)", for the distance, Xo, and the desired distance, X1 for the appropriate release height on OPF-3310.7 or OPF-3310.8.

(p X/Q)CX i D

=D Xg Xo (p X/Q) yo NOTE:

ONLY A STACK RELEASE IS CONSIDERED AS ELEVATED C.2.4 Determine the thryoid dose or air concentrations at distance X, as follove and log on Data Sheet C.

l C.3 Particulate Concentration Projections C.3.1 Perform the same procedure as for lodine (C.2) using OPF-3310.9', Page 3 and dealing only with concentrations.

YANKEE ROWE ljFI'ECTIVE GAtt?!A DOSE DIFFUSION FACTORS pX Y*M2 EI.EVVIED I.EVEI. REl.FASE Q

(All values shoulit be multiplied by 10 6)

Stability Category llownwfu<l __

Pa sspo i l l B Pas (luill C Pasquill D Pas <1uill E Pasquill F Pasquill G llistance Pas. pill A 0.5 miIes 7.9 16.0 19.0 19.0 18.0.

17.0 17.0 1.0 miles 1.2 4.1 8.0 9.9 9.7 8.9 8.6 2.0 miles 0.62 0.67 2.9 4.6 4.9 4.8 4.4 3.0 mi1es 0.42 0.42 1.5 2.8 3.2 3.3 3.0 4.0 miles 0.31 0.31 0.93 1.9 2.3 2.5 2.3 5.0 mi1es 0.25 0.25 0.64 1.4 1.8 2.0 1.9 6.0 miIes 0.21 0.21 0.47 1.1 1.4 1.6 1.6 7.0 miles 0.18 0.18 0.36 0.91 1.2 1.4 1.4 8.0 miles O.16 0.16 0.29 0.77 1.0 1.2 1.2 9.0 miIes 0.14 0.14 0.24 0.66 0.89*

1.1 1.1 10.0 mi1es 0.12 0.12 0.20 0.57 0.78 0.97 0.97 OPF-3310.5 i

Itev. I

YANKEE Rok'E EFFECTIVE GAMi!A DOSE DIFFilSION FACTORS pX Y. gg 2

~

GitOllND LEVEL HEl. EASE Q

(All values should be multiplied by 10~ C' )

Downwin.1

. _ _ _ _Pasquill A P.s s.;u i ll B Pasquill C Pasquill D Pasquill E Pasquill F Pasquill G Stability Category 11i s tance 0.5 miles 8.3 19.0 26.0 34.0 37.0 41.0 47.0 1.0 miIes 1.3 4.3 9.5 14.0 16.0 18.0 20.0 2.0 miles 0.63 0.68 3.1 5.7 6.9 8.3 9.4 3.0 miles 0.42 0.42.;

1.6 3.3 4.2 5.2 6.0 4.0 mi1es 0.31 0.31 0.93 1.9 2.3 2.5 2.3 5.0 miIes 0.25 0.25 0.66 1.6 2.2 2.9 3.4 f>.0 miIes 0.21 0.21 0.49 1.3 1.7 2.3 2.8 7.0 miles 0.18 0.18 0.37 1.0 1.4 2.0 2.4 8.0 mi1es 0.16 0.16 0.30 0.85 1.2 1.7 2.0 9.0 miles 0.14 0.14 0.24 0.72 1.0 1.5 1.8 10.0 mi1es 0.13 0.13 0.20 0.62 0.92 i.3 1.6 9

.f Rev. I

YANKEE ROWE l'I.IltlE CENTERLINE EFFLUENT CONCENTRATION DIFFUSION FACTORS pX c,32 ELEVATED LEVEL RELEASE Q

(All values sliould be multiplied by 10 6)

Downwiuil _

Stability Category Distance P.isquill A Pasquill H Pasquill C Pasquill D Pasquill E Pasquill F Pasquill G O.5 miles 6.3 23.0 40.0 23.0 9.5 0.03 0.00 1.0 miles 1.4 4.9 17.0 32.0 31.0 5.8 0.04

.2.0 miles 0.77 1.1 5.7 17.0 24.0 20.0 2.2 3.0 miles 0.55 0.73,

2.9 10.0 17.0 20.0 5.9 1

4.0 miles.

0.43 0.56 1.8 6.9 12.0 18.0 8.5' 4

5.0 miles

' 36 0.46 1.2 5.1 9.8 15.0 9.2 6.0 mi1es 0.31 0.40 0.92 4.0 8.0 13.0 9.5 7.0 miles 0.26 0.35 0.72 3.3 6.8 12.0 9.5 8.0 miIes 0.23 0.32 0.58 2.8 5.9 11.0 9.4 9.0 miles 0.21 0.29 0.49 2.4 5.1 9.6 9.1 10.0 mi1es 0.19 0.26 0.42 2.1 4.5 8.8 8.7 t

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1. W1101.F.. it0DY' DOSI:/ DOSE ItATE l'ROJECTIONS A. Determine Staliility Class from the following table:

,_ _ _AT_(*F)

STABILITY CLASS

<AT5 - 1.71 A

-1.71 <6f5 - 1.53 B

-1.53 <AT5 - 1.35 C

-1.35 <605 - 0.45 D

-0.45 <ATS t 1.35 E

tl.35 <ATS t 3.60 F

+3.60 <AT5 G

H.k l>roject Deise/ Disse Rates

'A 11 C

D E

F G

11 I

Distas:e _

Dist.ance Stab (pX/Q)Y (pX/Q)Y (E)+(D)

WB Dose /

(G) X (F), W.B.

Date/ Time of at X (mi) Class X,

X Dose Rate Dose / Dose Rate Projection at X,,(mi) i 3

a t X, at X g

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III. l'AltTIClit. ATE (AIRIl0RNE) CONCENTRATION PROJECTIONS A. Determine Stability Class from the following table:

11 '~

~~AT ( F)

STABII.ITY CLASS

<AT5 - 1.71-A

-1.71 <AT5 - 1.53 B

-1.53 <ATS - 1.35 C

-1.35 <ATS - 0.45 D

-0.45 <AT5 + 1.35 E

ti.35 <AT5 + 3.60 F

t5.60 <ATS G

11.* Project l'a i t i c til a te (airborn9) Concentrations A

11 C

D E

F G

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llistance Dist.ance Stab (pX/Q)Y (pyfq)Y (E)+(D)

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(G) X (F), W.B.

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3 at. X, at X 3

i OPF-3310.9 Aipenilix C l

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OP-3310 Appendix D Rev. 2

(

APPENDIX D Collection of Environmental Samples i

D.1 Equipment and supplies at Emergency Operations Facility (EOF)

D.1.1 Thermoluminercent Dosimeters (TLD) reader.

D.I.2 TLD annealing oven.

D.I.3 Spare TLD's and TLD holders.

D.I.4 A. supply of charcoal cartridges (a minimum of 50) impregnated with triethylindiamine (T.E.D.A.)

D.1.5 A supply of 2\\ x 4\\ inches manila envelopes.

D.1.6 A supply of one (1) gallon containers (approximately 50)

D.1.7 A supply of one (1) liter, wide mouth poly bottles (approx. ~50)

D.1.8 A supply of 12" x 12" zip-lock bags (approximately 200)

D.I.9 Keys to the Air Sample Stations.

D.1.10 Copies of OP-4802, " Radiological Environmental Sample Collec-tion" and DP-4S17, " Operation of The Teledyne Isotopes Thermo-luminescent Dosimetry System" D.2 Actions D.2.1 Immediately upon arrival at EOF, turn on the TLD annealing oven (set main dial on LOW and small dial at 52) e D.2.2 At the direction of the Emergency Coordinator co'llect s'amples according to OP-4802. Refer to the map on OPF-3310.15 for sampler locations.

D.2.3 Insure that all samples are properly labeled with location, date and time and collector.

D.2.4 Transport all samples except TLD's to the Yankee mobil van or to the Westboro Environmental lab as directed by the Emergency Coordinator.

D.2.5 Return TLD's to the EOF for analysis per DP-4817.

D.2.6 For each air sample collected, complete Data Sheet D.

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1 DATA SHEET D OP-3310 Rev. 1 PLUME DATA SHEET ~

Air Sample Station ID:

Distance.and Azimuth km

'l Date Sample Removed:

Time Sample Removed:

2 Total Sample Time hours,

Estimated Plume Immersion time:

hours.

Plume Radioactivity Concentration Factor = Total Sample Time (hours)

Estimated Plume Immersion Time (hours)

Multiply the activity concentration on the air. particulate filter and charcoal cartridge by the above factor to obtain plume con-centration.

1?

i 1 From Table I 2 From OPF-4802.1 e

r OPF-3310.10.

Rev. 1 i

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l ATTACHNENT A OP-3310 Att. A Rev. 1 l

TABLE I AIR SAMPLE LOCATIONS i

LOCATION DISTANCE FROM VC (miles)

AZIMUTH l

A-1 Furlon House

.5 232 l

A-2 Harriman Station 2.0 359*

l A-3 Ford' Hill Road 1.7 152*

l A-4 Observation Stand

.3 313*

A-5 Williamstown 13.8 265*

A-6 Heartwellville 7.8 333*

A-7 Monroe Bridge

.7 236 Sample Frequency: Continuous AP = Filter CF = Charcoal TABLE II i'

WATER SAMPLE LOCATIONS 7 LOCATION DISTANCE FROM VC (miles)

AZIMUTH WR-1 Harriman Reservoir 6.3 Upriver WR-2 Sherman Pond

.06 349*

WR-3 Bear Swamp Lower Reservoir 3.9 Downriver WF-1 Plant Potable On-Site Well WF-2 Sherman Spring

.12 304*

WW-1 East Storm Drain

.06 6*

WW-2 West Storm Drain

.06 280*

l Sample Frequency: WR-1 thru WR-3 Monthly (Quarterly Composite)

WF-1 and WF-2 Quarterly WW-1 and WW-2 Monthly (In-House)

TABLE III t

SOIL SAMPLE LOCATIONS l

LOCATION DISTANCE FROM VC (miles)

AZINUTH TS-1 Ford Hill Road 1.7 152 TS-2 Monroe Bridge

.7 236*

TS-3 Observation Stand

.3 313*

TS-4 Harriman Station 2.0 359 TS-5 Dunbar Brook 2.0 211 TS-6 West Cemetary 2.0 150 TS-7 Crossroad 2.3 83 TS-8 Whitingham Line 2.2 32 TS-9 Adams Hi-Line 1.3 289*

TS-10 Heartwellville 7.8 333*

TS-11 Williamstown 13.8 265 Sample Frequency: Once per three years-r TABLE IV VEGETATION SAMPLE LOCATIONS LOCATION DISTANCE FROM VC (miles)

AZIMUTH TG-1 Monroe Bridge

.7 236 TG-2 Harriman Station 2.0 359 TG-3 Ford Hill Road 1.7 152 TG-4 Observation Stand

.3 313 TG-5 Williamstown 13.S 265 TG-6 Heartwellville 7.6 333*

Sample Frequency. Once per 92 days April thru December g *e

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. OP-3310 Att. A Rev. 1 TABLE V RIVER SEDIMENT SAMPLE LOCATIONS LOCATION DISTANCE FROM VC (miles)

AZIMUTH SE-1 Harriman Reservoir 6.3 Upriver SE-2 Sherman Pond

.06 332*

SE-3 #5 Station Pond

.6 Downriver SE-4 #4 Station Pond 22.5 Downriver SE-5 Griswoldville Pond 3.1*

Uprive r*

From confluence of Deerfield and North River Sample Frequency:

Semi-Annually TABLE VI MILK SAMPLE LOCATION LOCATION DISTANCE FROM VC (miles)

AZIMUTH TM-1 Lively Farm (Heath, MA) 3.6 100 TM-2 King Farm (Readsboro, VT) 3.8 354*

TM-3 Mt. Williams Dairy (Williamstown, MA) 13.0 258*

Sample Frequency: Monthly TABLE VII FISH AND AQUATIC PLANT SAMPLE LOCATIONS LOCATION DISTANCE FROM VC (miles)

AZIMUTH FH-1 Harriman Reservoir 6.3 Upriver FH-2 Sherman Pond

.9 FH-3 #4 Station Pond 22.5 Downriver Sample Frequency: Semi-Annual TABLE VIII FOOD SAMPLE LOCATIONS 1.*

Monroe Bridge, Readsboro or Rowe; specify location, distance from plant and Azimuth.

2.*

Williamstown; specify location, distance from plant and Azimuth.

Sample Frequency:

Annual (harvest time)

Use Code TV if sample is green leafy vegetable, otherwise use Code TF

=

1. we

. OP-3310 Att. A Rev. 1 TABLE IX GA.T!A MONITORING LOCATIONS LOCATION DISTANCE FROM VC (miles)

AZIMUTH GM-1 Furlon House

.5 232 GM-2 Observation Stand

.3 313*

GM-3 Ford Hill Road 1.7 152*

GM-4 Harriman Station 2.0 359*

GM-5 Monroe Bridge

.7 236*

GM-6 Readsboro Road Barrier

.8 355*

GM-7 Whitingham Line 2.3 32*

GM-8 Monroe Hill Barrier 1.1 177*

GM-9 Dunbar Brook 2.0 211*

GM-10 Cross Road 2.3 83*

GM-11 Adams Hi-Line 1.3 289*

GM-12 Readsboro, VT.

3.4 344*

GM-13 Restricted Area Fence

.05 255*

GM-14 Restricted Area Gence

.07 300 GM-15 Restricted Area Fence

.05 345*

GM-16 Restricted Area Fence

.08 30 GM-17 Restricted Area Fence

.087 70 GM-18 Restricted Area Fence

.087 115 GM-19 Restricted Area Fence

.1 140 GM-20 Restricted Area Fence

.1 160 GM-21 Restricted Area Fence

.07 225 GM-22 Heartwellville 7.8 333*

GM-23 Williamstown 13.8 265

ATTACIDIENT E OP-3310 Rev. 2 Appendix E Page 1 PROTECTIV3 ACTION RECOTIENDATIONS FOR THE PUBLIC DISCUSSION:

This section is the responsibility of the Radiological Evaluation i'ssistant (REA) who reports to the Emergency Coordinaeor. The Emergency Coordinator has the final responsibility and authority to act on the recommendation of the Radiological Evaluation Assistant and communicate the recommendation to the State authorities.

The REA gathers the appropriate information concerning projected and ceasured dose rates. The population at risk is determined based on the meteorological data. An exposure time is determined based on the best available information. The projected dose is calculated by multiplying the do'se rate and the exposure time. The protective action is determin.'d from the EPA guidance.

If the EPA levels are reached, the Emergency Coordinator communicates the recommendation, the projected dose, the plume direction, the plume arrival time, and the plume duration.

It should be emphasized to the State that no compensation in the recom-mendation was made for the plume trav'l time, duration, o-the time to implement and complete protective actions.

For an accident involving loss of all core cooling capability, explicit protective action recommendations are contained in OPF-3310.11.

PROCEDURE E.1 Using OPF-3310.12 or a similar form document the information recorded as the procedure is performed. For LOSS OF ALL CORE COOLING CAPABILITY go directly to OPF-3310.11.

E.2 Obtain the current wind direction.

E.3 Detednine the location o' concern (population at risk) see OPF-3310.11.

E.4 Obtain the latest dose rates at the location of concern from any of the following:

a.

In plant 1/2 mile projections (OP-3310, Appendix A) b.

Off-site monitoring results (OP-3310, Appendix B) c.

Projections to other distances (OP-3310, Appendix C)

E.5 Determine the plume duration.

If better information is not avail-able, a value of 8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br /> shall be used.

E.6 Calculate the projected doses.

...-_ _._~

2-OP-3310 i

Att. E Rev. 2 E.7 If the projected doses DO NOT exceed the EPA levels on OPF-3310.11, forward this information to the Emergency Coordinator with no re-commendation for protective action. The Emergency Coordinator or the Radiological Evaluation Assistant shall communicate this infor-mation to the States.

E.8 If the projected dose reaches the EPA levels in OPF-3310.11, deter-mine the appropriate protective action recommendation and forward this to the Emergency Coordinator.

2 E.9 The Emergency Coordinator should evaluate the recommendation and 1

transmit it to-the States.

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1 PROTECTIVE ACTION RECOMMENDATION GUIDELIhTS A.

EPA PROTECTIVE ACTION GUIDES l

l Whole Body Thyroid Protective Action

<1 rem

<5 rem No Action 1 to

<5 rem 5 to <25 rem Seek shelter, await further instructions 25 rem 225 rem EVACUATION B.

POPULATION AT RISK 1.

For wind direction from NORTH the population at risk is to South only.

2.

For wind direction from SOUTH any recommendation made shall include the Town of Monroe Bridge.

C.

LOSS OF ALL CORE COOLING CAPABILITY the protective action recommen-dations are as follows:

1.

For wind direction from North or cross flow:

~

Monroe Bridge - Evacuation Readsboro - Take shelter, await instructions 2.

For wind direction from South:

' ~ ~

Monroe Bridge - Evacuation Readsboro - Evacuation ey W

OPF-3310.11 Rev.'2

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PUBLIC PROTECTIVE ACTION RECOMMENDATION WORK SHEET 4

DATE:

Wind' Direction:

O Fro noata O rro=.SOUTu Location:

Dose Rate:

REM /hr (whole body):

REM /hr (thyroid)

Plume Duration:

hours Projected Dose:

REM (Whole Body)

REM (thyroid)

EPA PAG EXCEEDED:

W YES

] NO 1.

Protective Action Recommendation: (If EPA PAG is exceeded)

SIELTER b EVACUATE 2.

Projected Dose:

REM (Whole Body)

REM (thyroid) 3.

Wind Direction:

] From NORTH

[ From SOUTH 4.

Location:

5.

Plume Arrival Time:

hours (Time of Day)

.6.

Plume Duration:

hours I

7.

Name of person making recommendation:

a.

R.E.A.

b.

E.C.

8.

Name of per: son receiving reccmmendation:

NAME:

STATE:

TIME:

NAPI:

STATE:

T!!E:

i OPF-3310.12 i

Rev. 2

-.