Text

Radiation Emergency Procedure 1670.4 Revision 4, Radiological Dose Calculations. Radiological Ref 167
	ML19254B020
Person / Time
Site:	Crane
Issue date:	11/22/1978
From:	Wealand J; METROPOLITAN EDISON CO.
To:	;
References
	1670.4, TM-0892, TM-892, NUDOCS 7909170683
	Download: ML19254B020 (23)
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TMI DOCUMENIS

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COPY MADE ON OF DOCUMENI PROVIDED BY METROPOLITAN EDISON COMPANY..

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RADIOLOGICAL REF.#

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{N THREE MILE ISLAND NUCLEAR STATION STATION RADIATION EMERGENCY PROCEDURE 1670.4 RADIOLOGICAL DOSE CALCULATIONS MASTER COPY Table of. Effective Pages Pcce Date Revision Page Date Revision Pace Date Revision 1.0 01/16/78 2

25.0 01/16/78 2

2.0 01/16/78 2

3.0 01/16/78 2

4.0 02/15/78 3

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21.0 11/22/78 4

21.1 11/22/78 4

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24.0 01/16/78 2

Unit 1 Staff Reco me : pproval Unit 2 Staff Reco. me s pproval

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Approval

//l Date Approval

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Date Cognihntisht. Asad Cogdizant 0lpt. Nead

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Unit 1 PORC Recommends Approval Unit 2 PORC Recommends Approval

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Date U

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Date l'!>*!)8

' Chairrnan of PORC

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V-Chairman of PORC Unit 1 S eri nde Approval Uriif2 Superintend nt Approval Date ff$72 lQ

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Date //

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Manager Generation Quality Assurance Approval Date i 55. A Row 8/7 7 p.j't 1 -

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1670.4 v-Revision 2

- q 1/16/78 THREE MILE ISLAND NUCLEAR STATION

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RADIATION EMERGENCY PROCEDURE 1670.4 l

RADIOLOGICAL 00SE CALCULATIONS 1.0 PURPOSE The primary purpose of this procedure is to supply early information needed to decide what action must be taken to limit radiation exposure to the general public in the event of a site or general emergency.

2.0 REFERENCES

2.1 Emergency Procedure Section 1670.2 and 1670.3 2.2 10 CFR 20 2.3 Unit 1. Unit 2 FSAR 3.0 EQUIPMENT 3.1 TMI Area Map

')

3.2 Isopleth curves for stable, neutral, unstable conditions s.-

3.3 Caiculation Sheets and Projected Dose Curves 4.0 OPERATING INSTRUCTIONS Confirm that either RM-A8, RM-A9, HP-R-219 or RM-L7 is alarming and 4.1 that there is in fact a release in progress.

(If the above monitors

~ are not alarming, obtain the current readings.)

Obtain Meterological conditions (wind speed, direction and range) 4.2 from Control Room.

- ~ ~

~ - -"4.3-Selection of Overlay (Isopleths)

Read the average wind speed over a ten minute period on wind 4.3.1 speed and direction recorder chart in the contrpi room.

Read the wind direction for the pIevious ten minute period.-

4.372 The average of the center of the direction trace is satisfactory

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3,.

for the direction from which the wind is blowing.

1.0

> 4,j fi y 2

1670.4 Revision 2

.y 1/16/78 Measure the average extremes of the wind direction range for 4.3.3 the previous 20 minute period.

(NOTE: Do not consider single

\\

Each chart line represents 10 peaks in determing range.)

degrees. The total of wind direction extremes over the 20 minutes period is termed wind range.

If the direction trace occurs both at the right and NOTE:

lef t hand margins, the left average extreme in degrees to obtain the wind range.

Corresponding Overlay Wind Ranoe_

STABLE less than 45

.e NEUTRAL between 45 and 75 UNSTABLE greater than 75 If the recorder in the control room beccmes inoperative, the.. _._.

4.3.4

..following steps will be followed for ' purposes of determing the

%)

proper overlay:

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Determine vertical temperature difference from recorder and

4. 3.4.1 determine diffusion group from the following table:

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Vertical Temperature Difference

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Diffusign Group _

- - (as measured between 150' & 50')

UNSTABLE Less than - 1.0 F 3

NEUTRAL Between - 1.0 & 0.3

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Greater than - 0.3 STABLE 0

Use of Map Overlay Selected _

4.4 Determine downwind direction from wind direction recorder 4.4.1 trace.

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to determin'. ownwind 0

U If the wind direction < 180, add 180...

4.4.1.1 direction.

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m wewe 74.4.1.73

1670.4 Revision 2 1/16/78 0 to determine If the wind direction is > 180, subtract 180 4.4.1.2 s

downwind direction.

Put origin point of overlay over Reactor Building on map of 4.4.2 TMI and surrounding area.

Align centerline of overlay with downwind direction to indicate 4.4.3 plume location.

Read f values from overlay at points of interest (i.e., Exclusion 4.4.4 Area, LPZ, Monitoring Points, Nearest Residents, and points recomended by the ECS.

^

4.5 Determination of On-Site Release Rates Estimates of Release Rates are obtained by using the Source 4.5.1 Release Term Calculation Sheet (Enclosure 1 for Unit 1, for Unit 2.) Obtain CPM or CPM /m for RM-A8, A9, and A5 for Unit I and HP-R-219 for Unit 2 and record on calculatio sheet.

Obtain flow of stack monitors by using data from FR 151 or FR 4.5.2 148 for Unit 1 and record.

For Unit 2, sum the flows of the flow recorders listed on the calculation sheet.

Perfonn calculations and obtain total source release terms for 4.5.3 Iodine and Noble gas (Ci/sec).

Obtain Radiation Level Readings from RM-G8 or HP-R-214 and by 4.5.4 using the table from Data Sheets, extrapolate the source release terms (Ci/sec).

Sum the source release terms and record the date and time.

4.5.5 4.6 Calculation of Off-site Ooses

. r.

_ Transfer the source release terms sum to the dose calculation 4.6.1 sheet (Enclosure 3).

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7.i. 't,tj'.1 3.0

1670.4 Revision 3 02/15/78 Obtain the Wind Direction, Range, Speed, and record them on 4.6.2.

3 Obtain the X/Q from the isooleth and record (sec/m ).

4.6.3 Perform the calculations to determine the radiciodine Plot'the noble gas concentration 4.6.4 noble gas concentrations (pCi/cc).

i Figure 1 with the projected whole body by interpolation us ng Plot the radiciodine concentration with the I

(Enclosure 6).

h id projected exposure time and determine the projected t yro These dose by inte' polation using Figure 2 (Enclosure 7).

d as projected whole body doses and thyroid doses will be use tual the basis for emergency protective actions, however, as ac d

field measurements are made the dose assessme to reflect measured values.

Report this, data to the Radiation Protection Supervisor.

4.6.5 1

Recalculation for True Source Tenq

[

4.7 Transfer predicted Iodine concentration and noble gas R/hr 4.7.1

' data to Section 1 on True Source Term Calculati 4).

When information is received from off-site monitoring team fo 4.7.2 i

2.

the specific location calculated, record this in Sect on Determine the Source Term Correction factor by dividing the 4.7.3 This correction factor actual data by the predicted data.

h multiplied by the original source release term determines t e i

corrected source release term for use in further ca of estimated dose at various points of interest'by use of f

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4.0 7'ildt.176

1670.4 Revision 3 02/15/78 Report the corrected source term to the Supervisor of Radiation 4.7.4 Protection and await instructions for next location.

4.8 Radioactive Liouid Release Should a major accidental release of radioactive liquids to 4.8.1 the river occur, it is essential to know the expected concentrations at various downstream points, when the radioactive flume will pass those points, and if the MPC for unrestricted areas has been exceeded.

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4.1 74117c

Revision 2 1/16/78

'1 i

Water samples will be collected at the following locat ons:

4.8.2 Discharge monitoring point a.

b.

York Haven Dam City of Columbia Other points as designated by the Radiation Protection c.

d.

Supervisor.

f ed Calculations to determine downstream concentrations are pe 5).

If 4.8.3 on the Liquid Release Calculations Sheet (Enclosure

-6 pCi/cc, downstream concentrations are expected to exceed 1x10 downstream users, (Table 2, Enclosure 9), must be notified If the concentration exceeds 5000 times MPC curtail intake.

(from 10 CFR 20, Appendix B, Table II) immediate notif If the concentration of NRC is required as per 10 CFR 20.403(a). h NRC is exceeds 500, times the MPC, 24 hour2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months notification of t e required as per 10 CFR 20.403(b).

River Flow and River Velocity are determined by NOTE:

The river level (Column using Table I (Enclosure 8).

A) may be obtained by calling the River Forecast Center in Harrisburg:

782-3488 or 782-2256 (unlisted), or by noting the level at the River Water Intake Structure of Un j

(columnB).

i Emercency Dose Calculations - Contincency These procedures are to be used if the radiation monitors 4.9 NOTE:

t normally used to monitor the. containment and/or plan

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vent are out of service or off-scale high.

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16 Revision 2 1/16/78 Case I LOCA (Reference Unit 2 FSAR,15.1.14.3) 4.9.1 A LOCA assuming severe core damage - fuel melting no core ble cooling (Regulatory Guide 1.4 assumptions) 100% of the no med gases and 25% of the iodines contained in the core are assu The containment initially leaks released to the containment.

at the maximum design leak rate.

15.1.14-3)

Case II LOCA (reference Unit 2 FSAR, Table LOCA assuming fuel damage but no core melting - core coo 4.9.2 Primary coolant leaks at a rate fast enough to maintained.

increase the temperature of the core to the point where there For this case it is assumed that is damage to the fuel rods.

fuel and all the gap activity (the gases contained between the The containment is.-.

fuel rod) is released to the containment.

In, assumed to initially leak at the maximum desing leak rate.

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this accident it is up to the Station Superintendent Unit Suoerintendent Supervisor to assure that there has been.

If there is any question, a Case I LOCA_

no fuel melting.

should be assumed _.

1 17)

Case III Gas Decay Tank Rupture _ (Reference Unit 2 FSAR This procedure is used only if actual radiological monitoring 4.9.3 ut equipment is unavailable for release evaluation (monitors o of service, read off scale, etc.).

1 21 )

Case IV Fuel Handlino Accident _ (Reference Unit 2 FSAR,1 Any activity occurring as a result of a fuel handling accid 4.9.4 ilation is normally drawn into the Fuel Handling Building Vent Process System and vented to the Plant vent for release. ld monitors are used to monitor these releases; however, shou 6'

744178

1670.4 Revision 2 1/16/78 these monitors be out of service or off scale, this technique is used to evaluate off site doses.

4.9.5 Case V Steam Generator Tube Rupture (Reference Unit 2 FSAR, 15.1.18)

Assume that all fission products leaking from reactor coolant system go directly to the secondary system.

Some of the radio-noble gases and iodines would be released to the atmosphere through the condensor air removal system :nd the steam line safety valves.

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1/16/78 P/b#IO:1 El'.EP' E!!CY PP.0CE0cI1E 1G70.4

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> Calculation of Phole Body and Thyroid Coses N 4.10 4.10.1.. Case I LOCA - Mhole Sody Dose X/0 at the downwind exclusion area houndary and at the IA. Calculate the Lo.t Population Zone. toundary. (Frca meteorological data and isopleths 3

sec/n

Ocwnwind Exclusion Area Coundary x/n T1E) 3

__ sec/n *.

Downwind LPZ Coundary X/4 (1Ab)

Tc calculate the whole body dose at the exclusion area boundary, IB.

multiply tne dispersion factor (IAa) by the dose release factor to l

obtain a reading in aren/ hour (for first 2 hour2.314815e-5 days 5.555556e-4 hours 3.306878e-6 weeks 7.61e-7 months dose only).

!at exclusion v ea boundarv mren nrem/ hour 5

=

3.6x10, h_

x T

To calculate the whole body dose at the L'PZ boundary, multiply IC.

in percion factor (IAb) by the dose release factor to obtain a read mrcr/ hour.

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'at LPZ boun g aren mrein/ hour 5 IEul

=

x.3.6x10 (1Ab X/T[J sec_

m3 To calculate the whole body dose at any other location of interest, 10.

cultiply the dispersion factor (X/n) by the dose release factor 5m

) to obtain a reading in mrem / hour.

(3.6x10 ec sec/m3 for the site

If X/0 cannot be rapidly deternined, use 6.1x10-4 bou AP.)

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1670.4

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Revision 2

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RADIATIO:1 E:1EP.C.EMCY PP.0CEDUPE 1570.4 1/}6/78 4.10.2 Ease I LOCA - Thyroid (Iodine) Dose 7

i

'1A.

To calculate the thyroid (Iodine) dose at the exclusion area boundary, t

nultiply the dispersion factor (IAa) by the dose release factor to obtain a vaadinq in mremfhour.

"at exclusion area boundarv mrem mren/ hour x 9.1x107 EuF

=

"TIha X/dT*

sec m3

13. To calculate the thyroid (Iodine) dose at the LPZ boundary, multiply the dispersion factor (IAb) by the dose release factor to obtain a readino in nrem/ hour.

at the LPZ boundary mrem

~ ~ - '

~x 9.1x107 hour

~

_ mrea/ hour

=

(1Ab X/ T* -

m3 M

sec

[

^

s IC. To calculate the thyroid (Iodine) dose at any other. location. of

' interest, nultiply the dispersion factor (x/9) by the dose release 3

facto,r (9.1x107 mrem /hr/sec/m ) to obtain a reading in mrem / hour.

from step. 4. TIT.1.l A 4-

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}670.4 Revision 2 1/16/78

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RADIATIO:t EllEPrEtiCY PP0CEDURE 1G70.4

'4.10.3 ' Case II LOCA - t? hole Body Dose To calculate the whole body dose at the exclusion area boundary, 1A.

multiply the dispersion factor (1Aa) by the dose release factor l~

to obtain a readino in nrem/ hour (for the first 2 hourt).

'at exclusion area coundary mrem / hour mrem x

2.6*.04 hour4.62963e-5 days 0.00111 hours 6.613757e-6 weeks 1.522e-6 months

=

-(TAa x/qT*

sec_

m3 To calculate the whole body dose at the LPZ boundary, multiply 18.

the. dispersion factor (IAb) by the dose release factor to obtain a reading in' ~ mrem / hour.

'at LPZ boundary _

. -.. 2.6x10" mr_em.

_.. -.._..__ mrem / hour Four

=

x T1 6 x/W *. _

sec m3 3 calculate the whole body dose at any other location of interest, IC.

' multiply the dispersion factor (x/0) by the dose release factor ~

4 (2.6x'10 "ec

"" ) to obtain a reading in mrem / hour.

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from Step 4.10'. l.1 A

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167).4 Revision 2

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1/16/78 RADIATIO t EltEP/IEt:CY PP.0CEDt:RE 1G70.4 s

4.10.4

. C_ase II LOCA - Thyroid (Iodine) Onse To calculate the thyroid (Iodine) dose at the exclusion area boundary, IA.

factor to nultiply the dispersion factor (IAa) 'oy the dose release obtain a readinq in mrem / hour.

at exclusion area boundary _

mren mrea/ hour x 9.0x 10 5 Tio~ui

=

T Aa x707*

sec m3 To calculate the thyroid (Iedine) dose at the LPZ boundary, multiply 10.

the dispersion factor (IAb) by the dose release factor to obtain a readinq in nrem/ hour.

at the LP7 houndary_

mrem mrem / hour 5 hour5.787037e-5 days 0.00139 hours 8.267196e-6 weeks 1.9025e-6 months x 9.0x 10

=

/

sec (1Ab X/q)*

W IC. To calculate the thyroid (Iodine) ~ dose at any other location of interest, multiply the dispersion factor (X/0) by the dose release 5

factor (9.0x10. mrem /hr)' to obtain a reading in mrem / hour.

sec/mJ T

s

from step-4.10.1.l A l

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1670.4 Revision 2

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1/16/78 I

RACi ATIO!! EllERGEllCY PROCEDURE 1670.4 g

4.10.5, Case III Gas Decay Tank Ruoture - Phole Body Case 1A. To calculate the whole body dose at the exclusion area boundary, multiply the dispersion-factor (1Aa) by the dose release factor to obtain a reading in mrem / hour.

lat exclusion area boundary, mrem mrem / hour x 3.0x 105 hour0.00122 days 0.0292 hours 1.736111e-4 weeks 3.99525e-5 months

=

~

-(TAa x/qT*

sec m3 IB. To calculate the whole body dose at the LPZ boundary, multiply the dispersion factor (IAb) by the dose release factor to obtain a reading in mrem / hour..

it LPZ houndary miem p

-.x 3.0x id liouF mrem / hour

=

-'e c-

~TIAbx/0)*

s n3 1C. To calculate the whole body dose at any other location of. interest,

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multiply the dispersion facter (x/q) by the dose release factor 6 m (3.0x10

) to obtain a reading in mrem / hour.

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from Step-4.10.1.l A,

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1670.4

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Revision 2

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1/16/78 Rt.DIATION EllEnr.ENCY PROCEDURE 1670.4 4.10.6 Jase IV Fuel Handlino Accident - 1.' hole Rody Dose IA. To calculate the whole body dose at the exclusion area boundary, trultiply the dispersion factor (IAa) by the dose release factor to ebtain a reading in mrem / hour.

h exclusion area boundary _

mrem mrem / hour x 2.5x106 hour

=

~(TAa X/0)*

sec m3 1B.

To calculate the whole body dose at the LPZ houndary, multiply the dispersion factor (IAb) by the dose release factor to obtain a reading in mrem / hour.

fat,LPZ boundary I

mrem 6 hour6.944444e-5 days 0.00167 hours 9.920635e-6 weeks 2.283e-6 months crem/ hour x 2.5x 10

=

T1'Ab x/0)

sec A3 IC. To calculate the whole body dose at any other location of interest,.

multiply the dispersion factor (x/0) by the dose release : factor 2.5 x 106 mrem / hour.to obtain a reading in mrem / hour.

sec./m3

from. step 4.10.1.l A,

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13.0

3 1670.4 Revisfor 2

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1/16/78 RADIAT10:1 EttEP.GEf CY PP.0CEDilRE 1070.4 4.10.7

Case IV Fuel Irandlin _Sccident - Thyroid (Iodine) Dose 1A. To calculate the thyroid (Iodint) dose at the exclusion area boundary, nultiply the dispersion factor (IAa) by the dose release factor to obtain a reading in mrom/ hour.

at exclusion area boundary mrem x 1.9x 107 Itcur mrcm/ hour

=

T.h x/0T*

se_c n3

18. To calculate the thyroid (Iodine) dose at the LPZ boundary, multiply the dispersion factor (IAb) by the dose release factor to obtain a reading in mrcm/ hour.

at the LPZ boundary mrem

~~

~x 1.9x 107 hour0.00124 days 0.0297 hours 1.76918e-4 weeks 4.07135e-5 months mrem / hour

=

/

~(IAb x/W*

sec

~~

s-m3 IC. To calculate the thyroid (Iodine) dose at any other location of

' interest, multiply the dispersion factor (x/Q) by the dose release factor.l.g x 107 mrem / hour to cbtain a reading arem/ hour.

sec./m"

from step 4.10.1.lA M]fM f

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Revision 2 1/16/70 i

RADIAT!0:1 EltEP.'iE!:CY PP.CCEttlRE IG70.4 l

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4.10.8. Case V Stean Generator Tube Ruoture

" hole Sody Dose l

y v

1A. To calculate the thyroid (Iodine) dose at the exclusion area boundary, nultiply the dispersion f. actor (IAa) by the dose release factor to cbtc.in a readinq in. mrem / hour (for the first two hours).

at exclusion area boundarv mrem mrem / hour x 4.2x 10s

},_ ur

,T

=

"TFAa x/0T*

sec m3

18. To calculate the thyroid (Iodine) dose at the LPZ boundary, multiply the dispersion factor (IAb) by the dose release factor to obtain a reading in mrem / hour.

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at the LPZ boundary

- -- - mrem f

x 4.2x105 hour

=

_ mrem / hour 1

(1Ab X/n)*

sec V

m3 IC. To calculate the thyroid (Iodine) dose at any other location of interest, multiply the dispersion factor (x/0) by the dose release factor 4.2 x 105 mrem / hour to obtain a reading in mrem / hour.

sec./m3

from stea 4.10.1.l A I

j

).

=

_mn.-m.

m.

t 15.0 t

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741187

1670.4' Revision 2 1/16/78 RADIATIO:1 EllERGENCY PROCED'JRE 1670.4

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.' 4.10.9 T_ Case V Stcan Generator Tube Runture - Thvroid (Iodine) Cose To calculate the whole body dose at the ev.ciision area boundary, 1A.

multiply the dispersion factor (IAa) by the dose release factor to obtain a reading in mrem / hour, tat exclusio_n area boundary crem mrem / hour x 5.6x105 hour

=

TI'Aa x/Q)*

s e,c,c m3 To calculate the whole body dose at the LPZ boundary, multiply IB.

the dispersion factor (IAb) by the dose release factor to obtain a reading in crem/ hour.

'at LPZ boundary

..mrcm/ hour miem 5 hour5.787037e-5 days 0.00139 hours 8.267196e-6 weeks 1.9025e-6 months x 5.6x10

=

c 1

TIE x/0)*

s_ec s

m3 To calculate the whole body dose at any other location of interest, 1C.

5

' multiply the dispersion factor (x/q) by the dose release factor 5.6 x 10 mrem / hour _ to'obtain a. reading mrem / hour.

'sec./m3

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from Step 1A, 4.10.1.1A

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EMCLOSURE 1 1670.4 Revision 2

+-

SOURCE RELEASE TERM CALCULATIONS UNIT 1 1/16/78

, Aux & FH Iodine Noble Gas Rx Bldg.

Iodine _

Noble Gas l

1.

RM-A8

.c/m/m c/m 1.

RM-A9 c/m/m c/m 2.

FR 151 CFM 2.

FR 148 CFM CFM 3.

Constant 3.62x10-7 N~

3.

Constant 3.36x10-7 yc

-5 3.

Constant X 1.27x10-5

3. Constant X 3 1.21x10 uCi uCi uCi uCi 4.

Mult 1x2x3=

4.

Mult 1x2x3=

ec sec

ec

ec 4

4 Ci/sec Ci/Jac Ci/sec Ci/sec 5.

=

5.

=

6 5

.10

/

10 Secondary - Condenser Off Gas Containment Leak Rate 0.25/24 hr 1.

RM-A5 c/m RM-GS*

Iodine Ci/sec Noble Gas Cf/sec METER 2.

Constant 1.75x10-10 READING 3

M /sec 2R/hr

.0006 8.5 3.

Mult 1x2=

Ci/sec 4R/hr _- -. 0011

__ _..17.5 6R/hr

.0017 26 8R/hr

,.0022 35 10R/hr

.0028 44 12R/hr

.0033 53 TOTAL SOURCE TERM

RM-G8 is shielded.

Reactor Building radiation level is 100 times RM-GS Iodine l Noble Gas meter readings.

However, the numbers specified in this table are meter readincs 1.

FJi-A8 5 2.

RM-A9 5 3.

RM-A5 3 4.

RM-G8 5.

Add 1+2+3+4=

Ci/sec Time Date Calculations by Sheet #1 a--

l 17-744169

e ENCLOSURE 2 1670.4 Revision 2 '

SOURCE RELEASE TERM CALCULATIO.;S UilIT 2

^

1/16/78 Flow Iodine Noble 3as g

, Vent Monitor 1.

HP-R-219 c/m/m c/m 1.

AH-FR-5720 CFM (I' vice Bldg) 2.

Flcet CFM CFM 2.

AH-FR-5284 CFM (Aux. Bldg)

Constant 4.5x10-6 X

3.

AH-FR-5286 CFM 3.

(Aux. Bldg) 3.

Constant [

1.35x10-5 h

{

4.

AH-FR-5659 CFM 4.

Mult. lx2x3 (F.H. tilds) 5.

4/10 Ci/sec Ci/sec 5.

AH-FR-5063 CFM 6

(Rx. Bldg) 6.

AH-FR-5075 CFM (Rx. Bldg) 7.

Total 1 thru 6 CFM (Max.= 275,500)

A HP-R-214 Containment Leak Rate i

HP-R-214*

Iodine Noble Gas Meter Reading (Ci/sec)

(Ci/sec)

Total Sou"ce Tem 2 R/hr

.0006 8.5 Iodine Noble Gas 4 R/hr

.0011 17.5 1.

HP-R-219 6 R/hr

.0017 26 8 R/hr

.0022 35 2.

HP-R-214 3.

Add 1 & 2 Ci/sec Ci/sec 10 R/hr

.0028

.44 12 R/hr

.0033 53

HP-R-214 Is shielded.

Rx. bldg radiation level is 100 times HP-R-214 meter reading.

The numbers specified in.this Table are Meter Readings Date Calculations by

) Time Data Sheet fla

~

- - b' 10.0 i

't' ENCLOSURE 3 1670.4 Revision 2 1/16/78 0FF-SITE DOSE CALCULATION SHEET Time Location Wind Direction

+180 MPH Wind Speed Wind Range Stability Class:

Stable; Neutral ;

Unstable O

IODINE N0BLE GAS 1.

Source Term Sheet #1 Ci/sec Ci/sec

~

3 3

2.

X/Q Sec/M Sec/M 3.

Mult 1 x 2 =

uCi/cc uCi/cc Wind Speed MPH MPH

/ m 4.

(

5.

Divide 3/4 uCi/cc uti/cc 6.

Dose Rate (From Figure 1670.4-1)

R/hr 7.

Expected Duration of. Release Hours Hours 8.

Expected Dose to Child Thyroid Rem Rem (From Figure 1670.4-2)

.o Time Date Calculations by Sheet #2

.7'11131.

19.9

$inil

'I s

. f- [

l'

~

m~8 G y N a EA

. n O,. o 3

52 t

"h eN=

t e

e h

4>

S a,.

{r c

T yo n

4 o

i t

a,

'P l

E u

T c

l E

a C

C R,

U O

S LA l

l I

G I

R O

e 2_

t a

l D

0' I

T CA g"

wF.

E RR O

pU(

C Tj 0

(

0 rL L

]n )) 9 AU Eij cT j fU(

nI C

f' A

p j

p [} {[@

7 fj E

B {'

M cy I

T DET C

1I D

E R

P j

N

(.

'}

e e

e_

e e

e

r. ~

eT eF.

ene n

ne ne ne eT

[.

n e n

n T

iT i

l i 1 i1 iT t_

iWo 1 il n

i dbs db s d b :a d5s d5s 6

s i3 d1S a

oaa d

s dbs oEa

! C, oW G nd d5s o

o5 a os a c

L I

a T n,i o

oB a I t o e a-l c

I f; G ITc i

i I

I IRG IhG I

1 Ii G-l O

3_I 8b I

T A. 'If0 A

6

~

1670.4 Revision 4 11/22/78 I

ENCLOSURE 5 DATA SHEET 4

-m k

Liouid Release Calculations Expected Average Expected Maximum Concentration at Concentration at Downstream Points Downstream Points 1.a. Avg. Rdg. RML-7 CPM 1.a. Max. Reading RM-L7 CPM 1.b. Constant 7.16 x 10+7 1.b. Constant 7.16 x 10+7

l.c a + b uCi

l.c a + b uCi mi ml Avg. Conc. at uti Max. Conc. at uCi Discharge ml Discharge ml (From RM-L7)

(From RM-L7) 2.

Effluent Flow GPM 2.

Effluent Flow

- GPM (From FR-146)

(From FR-146)

Constant 2.33 x 10-3 3.

Constant 2.33 x 10-3 4.

Multiply lx2x3 4.

Multiply 1x2x3 River Flow CFS 5.

River Flow CFS

) 5.

(From Table I)

L

6.

Divide 4 + 5 uCi

6.

D',1de 4 + 5 uCi mi ml

A General Emergency will be declared if > 6.8 x 10-3 uCi ml

If downstream concentrations are greater than 1 x 10-6 uCf downstream users must be notified to curtail.

ml Time for Flume To Reach 24 Hour Average Concentration Downstream Users Unrestricted Areas 1.

Point Location 1.

Avg. Conc. ~

uCi Discharged ml (RM-L7) 2.

Distance to Point miles miles 2.

Duration of min (See Table II)

Release 3.

River Velocity mph mph 3.

Constar.t 6.95 x 10-4 (See Table I)

.. t 4.

Divide 2 + 3 hrs hrs 4.

Multiply 1x2x3 e

1670.4 Revision 4 11/22/78 ENCLOSURE 5

-]

s(

DATA SHEET 4 (continued) 5.

MPC **

uCi g

m' 6.

Divide 4 + 5

- Weighted MPC for isotopes released.

If unknown, use 3 x 10-8 uCi g

ml

- - If 6 exceeds 5000, imediate notification of NRC is required.

If 6, exceeds 500, 24-hour notification of NRC is required.

e r b i

m me w

=m O

. ?..

1 r-21.1 v4.113a W4-

NOBLE GA3 ENCLOSURE 6 Revision 3 s

02/15/78

't CcO.M9

~j&

e 6

s

"?

l s

x 6

g

,,i..r.:

I e

f 73,gg7pg g g 5

T4 QN"/o g 6 t 6;e a

4 jl gggggg g

PLOT THE potnt SEp ts:g gyi t,;

)

3 Q

G AMM A RA 0!P.71c.') Ext'c ugg

I lll l

RARE (mR/hr) AND PRCJECTED

, 2.

4 y

4 TIME CF EX?Q5tLRE (HCURS)

A

-,\\N g% l !

ecov oc:s sacu resa cusvss gic.d-I x x.

i E*.TIMATE THE PP.OJECTED WMCL2

,y o.,

leep:co,

--pp Aeove 4No est.ow Tae ecint i i,

,,,.T 4q g

,4

..,,,i, e

x.

-s s.

s x.

,,,,,,3

.xi x.. x

,.. i

.is NI.N N iN!ii.T '

i i i I f il i

I r i li t r+

j

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I a

l 1 li;ir

'K l'klN IW 'A'k l i

I lil!"

II.' k V s

N INIiq'+ys.g.isN g

g.,,

x y

, _x

.s s.

2 m

\\*

,, 'y-

....' v

/

\\

- G s.

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.x Ni.iv-

.x.x i :s.,,,,, s. x,

,,,,,,.-4 i N I N, ! t i i %.i y N 1%_! i l g h, j l t,g!i,-3

.[.

3

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I

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<- mo s

_ '"~ T f,:

s S

6 u

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) g.

(

l

j

\\

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i...,,

.x;

, x,,,.. s.

,s.

y,,,

,,..s I

I I lI i 'ii t

i\\ I e\\1 8 I i e\\ 3 N JNi {N: }

'1 y

4 i

l i l iI!Il 1 1 N. I N I i l l NI ' C N i ::1 f

a 3

l l lI!

l l

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2

\\l3,\\

\\

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.. v-g res so, s<

-y

'a

-c

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. x:. >

s I

e ii: : ii a

i t

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ig,,,q 4 4

i i l I i IiII I

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NJ.g.2 l:

3 l l lllll fI

]

]9; 2

l

\\

A

$n l

-1x1C 2

3 4 56749

-~

O.1 2.0 20 cO 1

3 4 5 6 7C PCCAECTED TIMG l'EAIOD CF EXPC5u AE 04c4Jasy-

- = -

- - - =

e 0*}a

/

D v

og 3r p o

u"UJ A m dSSLa 22.0

('t'k '-',

Revisien 3 ENCLOSURE 7

~ '. -

to" p

6 02/15/78

;=

=,,

s.,

x x

o. i,

i

n i,

_i

, ' N.cf L I

I'I i !l dl I

/

r J.!

'g J/o e

I l !i l i l l~ !!

.I j.

I' E

c qi, g#

S N

x.,

o IN

Ne jiO Y.,

Ii i i 11 p

I ji t, -3 2

y ! y,, g y, g, ;

. \\ PiellN,1 ! I H

lIl j,'

-l r -

2o ps s

u.

s i $.

x x

v og.

x 8,

w f.. N.

AG, 's N W :

'a

.N Ye%'-

P';,N

% O'"~iie

_,1, N

.r.

Ni.

' N ' Y(y e

a i

e l ?%

b '!

I I e i \\l l \\i 1i C ihl l.IN i l i IN, \\

I X I i $9 d 2

R N f" Olt'i l}'g:,8.f"d Il o #

i l

l I 7 S - N.N U %!

iNii'.%IiMI-

!Il

'2#_5 r

.i.

12 @

1.i\\ N_ J.h;

! IX ' R I N I l i

2 3

4s

.m s sys s

s u

girx x

j cw N

x.

x-x tH u

a s

s.,

,x

. w.

u. 3 x

x 6

, s.

,,g x

...N u,.

]

o

,g,,

,g

,, g iiixi x i,x,ii\\i u N. i

'j g

,1 g

5

iN i

1

.N l.1 N l i l l N 'N i i ti l i i A. ' -N 1 2 8

.x; l

.N, g..,.

x n.

gi i.. N x

j t

~

A i x1 I NJ t t

Ni

x ' i

.\\ : I N, 9,\\' ! 11 i

,. g,

, y g io-s g 2, \\,

y ;. ;,g e

s j

lN FI N ilhs l ll b # 3 lI N I D 3' 3at s

u\\ ;.,e,-. A N.g x

s s

s

!q e

a x

it H_.,

g3 x

x.

x

..x

.x

=

No i.\\1

. K1 g-o.

6 i i i i

,\\. i N-

.N t

g g

j;.. 9 -Ic o l. !- N3 t i l\\

l J

Ni-

-j o

is.=isl+1:.1 : hi iM I:-Ni l l\\,1 i i i N e

P'

'i hN-h; '

4 2.

o d.

iN, i N9 i

.N i

.N

_l 5

.i

.4 4.

g-:.

-!: p l t i h iiN :

6N r i i N.*i!-

rNI_

j E

..-h s t [ : j. f Itl Fl. \\ ' l\\ f,i i hl::71# l \\ dt0-5 i

A

_h

. ! -li

!.I:;

i.

F.

6

~

Dl Io US TdIS GRAPH-s rapresan:in; h', % i-x.

6"-~

N%

-t 6

Plot the point

.x s

7the g'- a dose rata and i i \\t i : I - N.

Nexposure01:

2, and estinc:e i.l-l l N j: N' J2 I"7 the projected thy oid dose i

i,,..A

,N

,j

' by interpelatica frc: tha i ! 11 i'i N I A_

. l-F curves above and belev the jj

! j j _. l

- t,4

. Poin t.

2*:iP'rT"T"'m'ITG" + l__T F.

~s

.J 6 x 10 -8

\\

10 0.1

.2.

.3

.6 2 1.0 2.

41 6 6 10 20 30 Projected Epssura ~ ice (Rours)

/

oe D

r D

O x..

[D) I lIh 23.0 o l m j JJUb vulas s--.

1670.4 ENCLOSURE 8 Revision 2 Table 1 1/16/78 A

B C

D Gauge Reading River Elevation River Flow River (f 3 Market Street at TMI (Cubic Feet Velocity 8 ridge, Harrisburg (FeetAbove perSecond)

(MPH)

(Feet)

Sea '_evel) 3.0 3300 3.5 8300 4.0 15000 4.3 278.7 20,000

.9 5.3 279.5 40,0J0 1.4 6.2 280.1 60,000 1.7 7.1 280.7 80,000 2.0 8.1 281.3 100,000 2.3 10.4 282.5 150,000 2.6 12.5 283.6 200,000 3.1

~

14.3 284.9 250,000 3.3 16.1 285.8 300,000 3.5 17.9 287.0 350,000 3.7 19.5 288.1 400,000 3.9

[

21.2 289.7 450,000 4.1 22.7 291.0 500,000 4.3

~

24.3 292.6 550,000 4.5 25.6 294.0 600,000 4.7 26.9 295.2 650,000 4.9 28.1 296.1 700,000 5.1 29.3 297.1 750,000 5.3 30.4 298.1 800,000 5.5 31.3 299.1 850,000 5.7 32.0 300.1 900,000 5.9 33.1

~

302.0 1,000,000

~~

~

6.3 m

. r.

bQ 24.0

m.197

..ae.

s.

~ ' - -

1670.4 ENCLOSURE 9 Revision 2 1/16/78 gw w

TABLE II Downstream Users of the Susquehanna River Consul t. 1670.14 for appropriate telephone nu-ters:

Potential downstream users of the Susquehanna include the following

-treatment facilities:

Brunner Island Steam Electric Station; west bank; 5 miles downstream.

Wrightsville Water Supply Compaily; west bank; 16.25 miles downstream.

Borough of Columbia; east bank; 16.75 miles dcwnstream.

City of Lancaster; east bank; 16.75 miles dcunstream.

Safe Harbor Water and power Corporation; east bank; 27.25 miles downstream.

'Noltuoed Reservoir; east bank; 34.75 mile's' downstream.

,f-Chester Water Authority; east bank; 43 miles downstream.

? ;-

City of Baltimore; west bank; 49 miles downstream.

-~

O O

. e:

/

v I

2s.0

.,'g ', n q e'.. &.;.y3t.,

.

ML19254B020

Text

2.0 REFERENCES

=

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