ML20238A505

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Rev 9 to Document 4170002, Shoreham Nuclear Power Station - Unit 1 Offsite Dose Calculation Manual
ML20238A505
Person / Time
Site: Shoreham File:Long Island Lighting Company icon.png
Issue date: 05/22/1987
From: Beer M
LONG ISLAND LIGHTING CO.
To:
Shared Package
ML20238A498 List:
References
4170002, NUDOCS 8708310104
Download: ML20238A505 (15)
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Text

._ .

i f"FLt*O " *' " Document No. 4170002 Eff. Da t e 5/en/M Rev. No. 9 l

. i Prepared By Date Reviewed By Date fakg/' /$e S/2//19' /0 5 /.n f8 7 l

APPROVALS Title / Dept. Signature Date En.J1Ja ua fmd.,A, kkah $nA2P . Y lAre / S s W O f/Db4 Rol of,waa / saps '._ ..

~n40I Q we n ov7 s/22/s7 TITLE OF D0CUMENT Shoreham Nuclear Power Station - Unit 1 Offsite Dose Calculation Manual f

8708310104 870828 PDR ADOCK 05000322 R PDR N0ll. B

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I l

LONG ISLAND LIGHTING COMPANY OFFSITE DOSE CALCULATION MANUAL i

1 1

l i

Revision 9 - May 1987

OFFSITE DOSE CALCULATION MANUAL b Revision 9 - May 1987 Insertion Instructions Remove Old Page(s) Insert New Page(s)

Title Page Title Page Signature Page Signature Page 3.3-5 thru 3.3-8 3.3-5 thru 3.3-8 3.4-3 thru 3.4-5 3.4-3 thru 3.4-5 3.5-11 thru 3.5-13 3.5-11 thru 3.5-13

i l'l '

l' OFFSITE DOSE CALCULATION. MANUAL List of Effective Pages I

1' i

Page. Table (T),. Revision or Figure (F) Number EP-1. 9 EP-2 9 ,

i 3 iii thru iv 3 y thru vii 4 viii 1-1-1 8 2.1-1 8 ,

-2.1-2 2 2.1-3 8 2.1-4 8 2.1-5 8 2.1-6 thru 2.1-7 8 F2.1-1 thru F2.1-4.. 3 2.2-1 1 2.2-2 thru 2.2-5 3 2.2-6 thru 2.2-8 6 T2.2 1 F2.2-1 3 F2.2-2 thru F2.2-4 1 F2.2-5 thru F2.2-6 7 3.0-1 4 i 3.1-1 8 3.1-2 8 1

3.1-3 thru 3.1-5 8 3.1-6 1 T3.1-1 , 3 T3.1 ', t . 3 F3;1-1 thru F3.1-2 j 1 3.2-1 1 1

F3.2-1 4

3.3-l' 3.3-2 thru 3.3-4 3 3.3-5 thru 3.3-8 9 1

F3.3-1 4

3.4 1 ,

3.4-2 3 3.4-3 thru 3.4-5 9 T3.4-1 1 3.5-1 4 3.5-2 thru 3.5-6 3 3.5-7 4 3.5-8 thru 3.5-9 3 4

3.5-10 3.5-11 thru 3.5-13 9 EP-1 Revision 9 - May 1987

)

r OFFSITE DOSE CALCULATION M91UAL List of Effective Pages (Cont'd.)  !

g Page,'. Table'(T). Revision 'I or Figure (F) Number ,

T3.5-1 1

'T3.5-2 1 T3.5-3 1 T3.5-4 1 T3.5-5 3 T3.5-6 1 T3.5-7 1 T3.5-8 4 T3.5-9 3 T3.5-10 3 T3.5 3 T3.5-12 3 T3.5-13 3 i T3.5-14 3  !

T3.5-15 3 T3.5-16 3  !

i T3.5-17 ,

4 3.6-1 1 F3.6-1 1 3.7-1. 2 4-1 8 4-2 thru 4-3 4 T4-1 4 T4-2 4 5-1 1 TS-1 4 T5-2 4 T5-3 3 T5-4 4 T5-5 6

'. F5-1 3 6

F5-2 6-1 3 A-1 3 B-1 3 EP-2 Revision 9 - May 1987

_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ - _ _ _a

SNPS-1 ODCM 3.3.2 Method 2: (Backup Method) 3.3.2.I' Noble Gas Total Body Dose Rate M, = 0.7

  • X/Qg *{(DFBi *(Cgg *V g -C 12

~

' 2 13 3 ,a

+ 0.7

  • V
  • X/0 *{(DFBg *C 12 I 2 2

+ 0./

  • V3* X/03 * { [Dn g* Cg3] (ares /yr)

During periods of no intermittent releases such as no main condenser air removal pump operation and no containment drywell purge the above formula reduces to the following:

M ,= D.7

  • Vg
  • X/Q g * { bn *g Cgg)

If main condenser air removal is performed by the mechanical vacuum pump and the sampling is performed at the Station Vent, the fol. lowing equation should be used:

(mrem /yd DT, =' 0.7*Vy*X/Q2*{(DFB g*Cgy) where:

DT,

= total bot.y dose rate from all radionuclides releases (mrem /yr).

DFB g =thetotalbodydoseratefactorduetogammaemissiogsforeach identified noble gas radionuclides (arem/yr per pCi/m )

(Table 2.2-1).,

. C = the station ventilation exhaust duct release concentration of

  • I radionuclides, i. (pCi/cc) (from the isotopic analyses performed on the gaseous sample taken from the station ventilation exhaust monitor),

Cg = the air removal pump ventilation exhaust duct release concentration of radionuclides, i, (pCi/cc) (from the isotopic analyses performed on the gaseous sample taken from the air removal pump discharge monitor),

C = the c ntainment drywell purge ventilation exhaust concentration of i 13 radionuclides, i, (pCi/cc) obtained from a sample taken during a l filtered release or from the containment drywell atmosphere monitor with the purge lines bypassing the primary containment purge filter (The concentration is obtained from the isotopic analyses performed on the gaseous sample taken.),

3.3-5 Revision 9 - May 1987 BN1-11600-02-92

t ..

SNPS-1 ODCM V = 1.73E+08 cc/sec (3.66E+05 cfm), station ventilation exhaust duct 3

ventilation exhaust flow rate, V = 5.70E+05 cc/sec (1200 cfa), air removal pump exhaust duct j 2

ventilation exhaust flow rate, i V = 5.70E+05 cc/sec (1200 cfm), containment drywell purge ventilation 3 exhaust flow rate,

  • X/Q 3 = annual average X/Q at 366 meters NNE due to relegse vis the station ventilation exhaust point (6.6E-07 sec/m ),

r X/Q 2

= short term via the y/Q at station 366 meters ventilation NNE due exhaust to air point removal (3.6E-06 pump 3)elease sec/m ,

)

X/Q 3 = via short term X/Q ventilation st 366 meters NNE due to (3.6h-06 contaimaent drywg)il purge the station exhaust point sec/m .

0.70 = shielding factor that accounts for dose reduction due to shielding i from residential structures. )

3.3.2.2 Noble Gas Skin Dose Rate Ds,* x/0 * { (Ed *IC11 * 'l ~C12 * '2 ~C15 * '3N

+V C

  • */02
  • k (Esi 12 + '3
  • XIO 3 * [ {Est *Cg3)(ares /yr) 2 During periods of no intermittent releases such ar no main condenser air removal pump operation and no containment drywell purge the above formula

. reduces to the following:

Ds,* Vg

  • X/Qg * { [K,g
  • Cgg) (ares /yr)

If main condenser air removal is performed by the mechanical vacuum pump and the

- sampling is performed at the Station Vent, the following equation should be used:

DS, = Vy *x/Q*k(Xsi *Cgy) bremM 2

where:

DS,

= skin dose rate from all radionuclides released (arem/yr),

B!:1-11600.02-92 3.3-6 Revision 9 - May 1987

SNPS-1 ODCM K sg = the skin dose factor due to bets and gamma emissions 3for each

. - identified noble gas radior.uclide (arem/yr per pCi/m ) from Table 2.2-1, C = the station ventilation exhaust duct release concentration of I

radionuclides, 1. (pCi/ce) (from isotopic analyses perf*ormed on the gaseous sample taken from the station ventilation exhaust

  • monitor),

C = the air removal pump ventilation exhaus': duct release 12 concentration of radionuclides, i, (pCi/uc) (from the isotopic analyses performed on the gaseous sample taken from the air removal pump discharge monitor),

C g3 = the containment drywell purge ventilitjon exhaust concentration of radionuclides, i, (pCi/cc) obtained i m'. a sample taken during a filtered release or from the containment drywell atmosphere monitor with the purge lines bypassing the primary containment purge filter (The concentration is obtained from the isotopic analyses performed on the gaseous sample taken.).

V = 1.73E+08 cc/sec (3.66E+05 cfm), station ventilation exhaust duct 3

ventilation exhaust flow rate, V = 5.70E+05 cc/sec (1200 cfm), air removal pump exhaust duct 2

ventilation exhaust flow rate, V = 5.70E+05 cc/sec (1200 cfm), containment drywell purge ventilation 3

exhaust flow rate, XQ/ 3 = annual average x/Q at 366 meters NNE due to relegse via the station ventilation exhaust point (6.6E-07 sec/m ),

X/Q 2

= short via theterm y/Q at station 366 meters ventilation NNE due exhaust to air point removalsec/m (3.6E-06 pump 3*)*1****

. X/Q 3 = short term x/Q at 366 meters NNE due ;o containment drywgli purge via the station ventilation exhaust point (3.6E-06 sec/m ).

3.3.2.3 Organ Dose Rate (Particulate Releases) 6 -C 12 2 ~

Vg D,3 = I [10 *R,*P g *X / Qg *(C g 13 3 6

+ V2 *I [10 *R,*Pg ) @ 2 12 i

+ V3

  • I ( 106 *R, *Pg ) MQ3 *Cg3) (area /yd During periods of no' intermittent releases, such as no main condenser air i removal pump operation and no containment drywell purge, the above formula reduces to the following:

D,) = Vg

  • I 10
  • R,
  • P )g
  • X/Qg *Cgg Mem@

BN1-11600.02-92 3.3-7 Revision 9 - May 1987

J

r _ _ .-

SNPS-1 ODCM i If main condenser air removal is performed by the mechanical vacuum pump and the' sampling is performe.d at the Station Vent, the following equation should be used:

6 (mrem /yr)

D g = 10 *Vy *R,*x/Q*{(P 7 g *C gy) ,

where: -

D,). = total dose rate to organ, j, mrem /yr.

= the inhalation dose conversion factor, for radionuclides other P'$ than noble gases, 1, and organ, j, in arem per pCi from Table 3.5-3.

The dose factor P is based on the critical individual organ for theChildgroup,Michismostrestrictive. Inhalafion dose factors i for.other age groups are given in Tables 3.5-!, 3.5-2, and 3.5-4.

R, = inhalation rate (m /yr), from Table 3.5-5.

Cg = the station ventilation exhaust duct release concentration of radionuclides,1,(pC1/cc) (f rom the isotopic analyses performed on the filter paper and charcoal cartridge taken from the station ventilation exhaust monitor),

C 12

= the air removal pump ventilation exhaust duct release concentration of radionuclides, 1, (pci/ce) (from the isotopic analyses performed on the iodine and particulate filters taken from the air removal pump discharge monitor),

C g3 = the containment drywell purge ventilation exhaust concentration of radionuclides, i, (PC1/cc) obtained from the iodione and particulate filters during a filtered release or from the containment dr:rwell  ;

atmosphere monitor w th the purge lines bypassing the primary  ;

containment purge filter (The concentration is obtained from the i isotopic analyses performed on the iodine and particulate filters.),

V - 1.70E+08 cc/sec (3.60E+05 cfm), station ventilation exhaust duct 3

ventilation exhaust flow rate, v2 = 5.70E+05 cc/sec (1200 cfm), air removal pump exhaust duct  !

ventilation exhaust flow rate.

V = 5.70E+05 cc/sec (1200 cfm), containment drywell purge ventilation 3

exhaust flow rate, X/Q 3

= annual station average y/Qexhaust ventilation at 2478point meters ESE duesec/m (1.54E-07 to releg)ses via the y/Q = short term y/Q at 2478 meters ESE due to condenser air removal 2

pumpgeleaseviathestationventilationexhaustpoint (4.22E-07 sec/m ),

I X/Q 3 = short via theterm X/Q ventilation station at 2478 meters exhaust ESE point due to(4.22E-07 containment drywg)li purge sec/m .

BN1-11600.02-92 3.3-8 Revision 9 - May 1987

SNPS-1 ODCM 3.4.2 Method 2: (Backup Method) 3.4.2.1 Noble Gas Gamma Air Dose The general equation is:

~ ~

Dg

  • i il 1 1 12 2 2 13 1

s

+ 3.17E-08 *V 2 *"2 *x/02 *k("1 *C12] ,

+ 3.17E 48 *V3 *t*x/0*[%g*cg3] . (arad) 3 3 ,

During periods of no intermittent releases, such as no main condenser air removal pump operation and no containment drywell purge, the above formula reduces to the following:

Dg = 3.17E-08 *vg *c 3 *x/0 g*I[M g g

  • Cg3) GraO If main condenser air removal is performed by the mechanical vacuum pump and the sampling is perfonned at the Station Vent, the following equation should be used:

.1 10 b y *t * *C gy) @@

'D C

=

2 22 *k i s

where:

Dg = the total gamma air dose from the releases (mrad),

3.17E-08 = the inverse of number of seconds in a year, Mg = the air dose factor due to gamma emissions for each 3 identified noble gas radionuclides (mrad /yr per ICi/m )

from Table 3.4-1, t

= 7.68E+06 see for quarterly dose calculation.

y

- 3.15E+07 see for yearly dose calculation t = release Period (sec) for condenser air removal pump 2

t = release period (sec) for containment drywell purge 3

exhaust C = the station ventilation exhaust duct release il concentration of radionuclides, i. (pCi/cc) (from the isotopic analyses performed on the gaseous sample taken ,

f rom the s.tation ventilation exhaust monitor),

Cg" ., = the air removal pump ventilation exhaust duct release concentration of radionuclides, i. (LCi/ce) (f rom the isotopic analyses performed on the gaseous sample taken from the air removal pump discharge monitor),

3.4-3 Revision 9 - May 1987 BN1-11600.02-92

SNPS-1 ODCM C g3 = the containment drywell purge ventilation exhaust concentration of radionuclides, i, (LCi/cc) obtained from n sample taken during a filtered release or from the containment drywell atmosphere monitor with the purge lines bypassing the primary containment purge filter (The concentration is obtained from the isotopic analyses performed'on the gaseous sample taken.), .

V = 1.73E+08 cc/sec (3.66E+05 cfm), station ventilation 3

exhaust duct ventilation exhaust flow rate, V = 5.70E+05 cc/sec (1200 cfm), air removal pump exhaust duct 2 ventilation exhaust flow rate, V = 5.70E+05 cc/sec (1200 cfm), containment drywell purge 3 ventilation exhaust flow rate, X/Q 3 =annualaveragex/Qat457metersESEduetoreleasevja the station ventilation exhaust point (8.44E-07 sec/m ),

XQ/ 2 = short term x/Q at 457 meters ESE due to condenser air removalpumprelease31athestationventilationexhaust point (1.83E-06 sec/m ),

X/Q 3 = short term x/Q at 457 meters ESC due to containment.

drywell purge release via the station ventilation exhaust release point (1.83E-06 sec/m'3).

3.4.2.2 Noble Gas Beta Air Dose l

The general equation is:

D 3

s

= 3.17E-08 *x/Q 3 t

  • { bg *(C g3 Vt 33

-C i2 2 *2 -C g3 V3 3t C

, + 3.17E-08 *X/Q 2 *Y 2 **2 *f[H 1

i

  • C i2]

+ 3.17E-08

  • X/Q 3 W 3 t3 *{Ng *C g3]

(arad) 1 Euring priods of no intermittent releases, such as no main condenser air removal pump operation and no containment drywell purge, the above formula reduces to the following:

D = 3.17E-08 *X/Q3 W 3 *t *C g3] (mrad) 3 s

3 t{ [N g If main condenser air removal is nerformed by the mechanical vacuum pump and the sampling is performed at the Station Vent, the following equation should be used:

1 D

3

= 3.17*10 N 3

  • t 2 X 92 *k 1 11}

BN1-11600.02-92 3.4-4 Revision 9 - May 1987

SNPS-1 ODCM where D = beta air dose fro all radionuclides released (mrad),

3 l

N'

= the air dose factor due to beta emissions for each l identified noble gas radionuclides'(mrad /yr pe'r pC1/m )

from Table 3.4-1, ,

3.17E-08 = the inverse of number of seconds in a year, 1

t g

= 7.88E+06 see for quarterly dose calculation.

= 3.15E+07 sec for yearly dose calculation, t = release period (sec) for condenser air removal pump, 2

t = release period (sec) for containment drywell purge 3

exhaust, C = the station ventilation exhaust duct release II concentration of radionuclides, 1, (VCi/cc) (from the isotopic analyses performed on the gaseous sample taken from the station ventilation exhaust monitor),

C

= the air removal pump ventilation exhaust duct release 12 concentration of radionuclides,1, (VCi/cc) (from the isotopic analyses performed on the gaseous sample taken from the air removal pump discharge monitor),

C = the containment drywell purge ventilation exhaust 13 concentration of radionuclides,1, (ici/cc) obtained from a sample taken during a filtered release or from the containment drywell atmosphere monitor with the purge lines bypassing the primary containment purge filter (The concentration is obtained from the isotopic analyses performed on the gaseous sample taken.).

- Vg = 1.73E+08 cc/sec (3.66E+05 cfe), station ventilation

- exhaust duct ventilation exhaust flow rate, V - 5.70E+05 cc/sec (1200 cfm), air removal pump exhaust duct 2 ventilation exhaust flow rate, V = 5.70E+05 cc/sec (1200 cfm), containment drywell purge 3 ventilation exhaust flow rate,

)(/Q 3 = annual average y/Q at 457 meters ESE due to release vja the station ventilation exhaust point (8.44E-07 sec/m ),

y/Q = short term y/Q at 457 meters ESE due to condenser air 2 removal pump release 3 via the station ventilation exhaust point (1.83-06 sec/m ), and y/Q = short term y/Q at 457 meters ESE due to containment 3 drywell purge release3 via the station ventilation exhaust point (1.83E-06 sec/m ).

l BN1-11600.02-92 3.4-5 Revision 9 - May 1987

SNPS-1 ODCM 3.5.2 Method 2: (Backup Method) 3.5.2.1 Organ Doses:

6

  • D j =3.17E-08*f[(10*R 1 a
  • P..

13 *x/Q1 + Pc13 .. *D/Q1 )* .

(Cgg* V) *ty -C gy *V 2 *'2 ~U i3 *I 3

  • t 3D

+ 3.17E-08* V2 *t 2

  • I[(106 *R a *P.,*x/Q2 13

+ Potj

.. *D/Q2)*C.2]2 l

j g

+ 3.17E-08 *V 3 *t 3

  • [(106, a *#i j *XIN3*Poij *DIQ 3)*Cg3] (mrem) f (3.5.2-1) l

{

During periods of no intermittent releases, such as no main condenser air j removal pump operation and no containment drywell purge, the above formula reduces to the following: l Dj = 3.17E-08 *V 3 (mrem)

  • t 3 [(100 *R,*Pg *x/Q3 + P,g) *D/Q 3)*Cgg]

(3.5.2-2)

If main condenser air removal is performed by the mechanical pump and the sampling is performed at the Station Vent, the following equation should be used:

~ 6 D= 3.17*10 *V y *t

  • 2{[(10*R,*P *X/Q g ~

3 ogj *D/Q (mrem) 2 )*Cg]

P (3.5.2-3) where:

= total dose to organ j (mrem),

D)

P

= the inhalation dose conversion factor for radionuclides, i, (other ij than noble gases, tritium, carbon-14), and organ j, (mrem per pCi inhaled) from Table 3.5-3. For tritium and carbon-14 P includes the contribution from ingestion of leafy and stbhed vegetables and from inhalation pathways and is listed in Table 3.5-15.

P values listed in Tables 3.5-16 and 3.5-17 are the dose rate cb$versionfactorsfortritiumandcarbon-14fromingestionof goat's milk.

S 3.5-11 Revision 9 - May 1987 BN1-11600.02-112

\ _ _ _ _ _ _ -

l l

SNPS-1 ODCM Note: For short term releases such as from condenser air removal pump or containment drywell purge P for C-14 must be adjusted (seenoteinTables3.5-15N3.5-16and3.5-17).

R, = inhalStion rate (m /yr) from Table 3.5-5, ,

= the dose conversion factor for radionuclides, other than noble P 'd gases,1, and organ j, for the leafy vegetables, ptored vegetables, and contaminated ground pathways in m (mrem /yr per pCi/sec) respectively, from Table 3.5-9.

The dose factors P P are based on the critical individual organforthechilbg,ro0hsincethisgroupismostrestrictive.

ty = 7.88E+06 sec for quarterly dose calculation

= 3.15E+07 see for yearly dose calculation, t = release period (sec) for condenser air removal pump, 2

t = release period (sec) for containment drywell purge exhaust, 3

C il

= the station ventilation exhaust duct release concentration of radionuclides, i, (pCi/cc) (from the isotopic analyses performed on the iodine and filter cartridge taken from the station ventilation exhaust monitor),

Cg = the air removal pump ventilation exhaust duct release concentration of radionuclides, i, (tfi/cc) (from the isotopic  ;

analyses performed on the iodine and particulate filters taken from the air removal pump discharge monitor),

C g3 = the containment drywell purge ventilation exhaust concentration of radionuclides, i, (pci/cc) obtained from the iodine and particulate filters during a filtered release or from the containment drywell  ;

atmosphere monitor with the purge lines bypassing the primary ,

containment purge filter (The concentration is obtained from the

. isotopic analyses performed en the iodine and particulate filters.), j Vy = 1.73E+08 cc/see (3.66E+05 cfm), station ventilation exhaust duct ventilation exhaust flov rate, v = 5.70E+05 ec/sec (1200 cfm), air removal pump exhaust duct 2 ventilation exhaust flow rate, V = 5.70E+05 cc/sec (1200 cfm), containment drywell purge ventilation 3 exhaust flow rate, y/Q y

= annual station average y/Qexhaust ventilation at 2478point meters ESE duesec/m (1.54E-07 to releg)ses via the I

y/Q = short term y/Q at 2478 meters ESE due to condenser air re.voval ]

2 pump 3elease via the station ventilation exhaust point (4.22E-07 sec/m ), ,

1 j

BN1-11600.02-112 3.5-12 Revision 9 - May 1987 4

1

  • - SNPS-1 ODCM X/Q3 = sh rt term /Q st 2478 meters ESE due to containment drywgli purge via the station ventilation exhaust point (4.22E-07 sec/m ),

D/Q 3 = annual average D/Q deposition factor at 2478 meters ESE due t releases via the station ventilation exhaust point (3.08E-09 m 2),

l.

D/Q 2 = short term D/Q deposition factor at 2478 meters ESE due *to r

condenser exhaust poletair (8.47E-09 removalmpump 2)eleases via the station ventilation D/Q 3 = short term D/Q deposition factor ac 2478 meters ESE due to containment drywell purge,gxhaust via the station ventilation exhaust point (8.47E-09 m ).

3.17E-08 = inverse of 3.15E+07 sec/yr, and NOTE _:

If the land use census (see Table 3.5-8) changes, the critical location, i.e.,

the location where an individual would be exposed to the highest dose, must be reevaluated using Equation 3.5.2-1 for each of the following locations:

1. nearest residence,
2. nearest vegetable garden, and
3. nearest milk cow or goat.

P used in Equation 3.5.2-1 will include the values in Tables 3.5-10 through 3 N14, if those pathways exist.

At each location, the following pathways must be considered and dose (dose rates) reevaluated if any actual pathway exists:

1. inhalation,
2. leafy vegetables (fresh),
3. stored vegetables, 4 goat's or cow's milk (if both exist choose the one resulting in a

.. higher dose), and

5. deposition on ground. I Since a person will always be present, pathways 1 and 5 must always be evaluated. .

Once the location of the critical individual is determined and found to be other than the one at 2478 meters ESE, the values of '(/Q and D/Q at the updated critical location must be used.

BN1-11600.02-112 3.5-13 Revision 9 - May 1987

_ ________ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ -_ -

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