ML20236T636

Forwards Addl Info in Response to NRC Request Re 870320 Application for Amend to License NPF-5,revising Tech Specs to Allow Performance of Hydrogen Injection Testing.Radiation Levels Experienced During Hydrogen Test Addressed

ML20236T636
Person / Time
Site:	Hatch
Issue date:	11/23/1987
From:	Gucwa L GEORGIA POWER CO.
To:	NRC OFFICE OF ADMINISTRATION & RESOURCES MANAGEMENT (ARM)
References
SL-3596C, NUDOCS 8712010415
Download: ML20236T636 (20)

Text

Georgia Power Company 333 Piedmont Avenue Atlanta, Georgia 30308 l

Telephone 404 526-6526 Maikog Address:

Post Office Box 4545 Atlanta, Georgia 30302 M

l Georgia Power L T. Gucwa toe southem eiettoc system Manager Nuclear Safety SL-3596c and Licensing X7GJ17-H600 November 23, 1987 U. S. Nuclear Regulatory Commission ATTN:

Document Control Desk Hashington, D. C.

20555 PLANT HATCH - UNIT 2 NRC DOCKET 50-366 OPERATING LICENSE NPF-5 HYDROGEN HATER CHEMISTRY MINI TEST Gentlemen:

Georgia Power Company's letter of March 20, 1987, proposed Technical Specification changes for Plant Hatch Unit 2 to allow performance of hydrogen injection testing.

The following additional information is provided in regard to that submittal, pursuant to scesequent verbal requests from NRC.

1.

The cover letter for the proposed change incorrectly referenced Technical Specifications Table 3.2.1-1 as being affected.

The correct reference is Table 2.2.1-1.

The proposed changed Technical Specification pages provided with the submittal are correct.

2.

Information regarding radiation levels experienced during the ongoing Unit I hydrogen injection test is provided as an Enclosure.

The enclosed information is preliminary and subject to verification.

3.

EPRI NP-4947-SR-LD, "BWR Hydrogen Water Chemistry Guidelines:

1987 Revision", dated March 13, 1987, have been followed for the test installation.

If you have any questions in this regard, please contact this office at any time.

Sincerely, 8712010415 871123-PDR ADOCK 05000366 7

y^ ' -

P PDR L. T. Gucwa i

Ck D

REB /lc

Enclosure:

Radiation Survey Data for HNP-1 Test i\\

c:

(see next page)

1 k

GeorgiaPower L I

I U. S. Nuclear Regulatory Commission November 23, 1987 Page Two l

c: Georaia Power Comoany

.I Mr. J. P. O'Reilly, Sr. Vice President - Nuclear Operations l

Mr. J. T. Beckham, Jr., Vice President - Plant Hatch GO-NORMS U. S. Nuclear Regulatory Commission. Washinaton. D. C.

Mr. L. P. Crocker, Licensing Project Manager - Hatch U. S. Nuclear Regulatory Commission. Reaion 11 Dr. J. N. Grace, Regional Administrator Mr. P. Holmes-Ray, Senior Resident Inspector - Hatch 1792C 700775

l l

g Georgia Power m.

ENCLOSURE PLANT HATCH - UNIT 2.

.NRC DOCKET 50-366 OPERATING LICENSE NPF-5 RADIATION SURVEYS INTRODUCTION:

The primary' source of radioactivity in the BHR steam is 7.13 sec N-16 from the 0-16 (n,p) reaction.

The N-16 is ' formed in the liquid' phase within the reactor core and is then partitioned between the reactor water l

and steam during the phase separation.

With standard BWR water chemistry, the bulk of the N-16 formed is quickly converted to relatively N0'3 Only a small i

non-volatile anionic species, 'primarily NO2 or amount of the N-16 goes into the steam.

As the oxidizing potential of the coolant is reduced by hydrogen, the proportion of the N-16 converted to more volatile

species, such as NH,

N, or N0,

markedly 3

2 2

increases and the fraction released to the steam rises commensurately.

One of the objectives of the mini-test is to evaluate this partitioning l

effect and the resulting dose rate changes in the plant and in the surrounding environs.

These data should help to answer questions on.

changes in local and overall ALARA, shielding requirements, and boundary dose rates.

MEASUREMENTS:

The Plant Hatch Unit 1 radiation measurements were made in four different distance location sets, and with three different instrument types.

The location sets were determined on the basis of geography and expected radiation levels.

The procedures and locations used for the L

measurements were documented in Hydrogen Water Test Procedure number 42P-060186-0S-1-IS.

1.

Steam Line Monitors (A. B. C. and D) located in the steam tunnel.

The normal steam line monitors have a continuous readout in the control room.

The dose rates measured by these ion chambers were recorded at each hydrogen addition sequence.

Figure 1 of the l

Enclosure shows the normalized MSLRH for six plants including Hatch Unit 1 during Hydrogen Water Mini-Tests.

1792C E-1 11/23/87 SL-3596C 7""5

r r

Georgia Power d L

l ENCLOSURE (Continued)

RADIATION SURVEYS The data are shown in Table 1 as a ratio of dose rate at a level of hydrogen injection to normal operation dose rates.

2.

Interior radiation survev coints in the olant.

administration buildina. shoos and vendor buildinas.

The plant measurements were taken in normally occupied areas, potential maintenance areas, and areas needed to estimate the source term dose rates of the turbine.

The dose rates were measured with two types of instruments, an air ion chamber, and. an Eberline pR meter.

Area measurements and contact readings were obtained.

The same instruments were used in each measurement sequence at the same locations to eliminate calibration and response bias from baseline valves.

The measured data are shown in Tables 2 to 5 and are plotted in Figures 2 to 7.

i 3.

Area Radiation Monitors located throuahout the olant.

The installed 1

area monitoring system detector outputs read out in the main control room.

A list of the locations and the collected data are shown in Table 6 and Figures 8 and 9.

4.

Exterior of Plant and buildinas (inside and outside the orotected Arla).

These measurements were made with an Eberline pR Meter.

A total of 27 fixed locations was measured throughout the test sequences.

Tables 7 and 8 show the measured values and Figures 10 to 13 show the plotted data.

1792C E-2 11/23/87 SL-3596C

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.s== =.e.=sa.

=

=s.

. :',*..!10:4 50'.;TH 7 g C

.suss ass== =ssa 4

. 03'.!!!! T8ti.'TE t2::!EER A C

. 2 9.!!D' A'.-at D 4 FAIRWAY C

4.'t!T G ;C D A L *it ETAEi EATIP.!

65

. ". 02tE*Fj hie L.S. An CO?.

30 no 110 i49 240 lA 290 lt?

C u 0::!!!!! 4e!!.'I GTF QF 74 25.A

• ., ADF MMMD TA!! nit

' U ME' T! W ! M 61 REMEiJIE C f

ex 700 1:00

son mo 236

en

50e

?. ! E Li NORTF bili SH!!LD 000R y

too 110 120 210 30 490 6W goo de 10.KIAF.W$d!1Tt[Wa0FP05:TE600vEW5?

C 6

e sasssssasssasa a n sesstesasssamassasssaes.sassaesas.a.semasssassassassssas as 4

q assa.a.assa.esa.yses asssestwa taartsassasasas :sesamas i{

r

~

J j

'h

, )

)

v : ' \\. 8

\\

l

)

,c c

i s

\\

v

.i *I i

l y,

3 5

0

Table 4 Du!N 1.' MTtil Igl!T 1 RIN! TEST MTA REV.2 7-11-06 MIELIMIMRY DATA: SIEJECT TO E YER1FICATI E MTA WT DTDG = c aAlbr M ust nuesured 07 02 07-03 01 43 07-03 07-04 07-05 07-04 07-04 07-05 07-05 TIM:

t&22

!?3 2132 M10

!aff 1715 2055 1920

'1900 E0lENCE W:-

BABELIE 1 - 11 2. IC if.D 2C-il.B E-il.B 7-10.5 E 48.8 6C-N1.3 94 93 APMist!nATE HYDROED SCFn 0.0 0.0

!.0 12.0 '

18.0 20.0 27.0

!&.0 48.0 60.0 APMt0!!mTE HYMOED PP!t:

0.M

0. 00 0.22 -

0.2 0.39 0.67

0. 95 1.3 1.61 2.02 1

Tunsts AOoF

1. NORTH A M i W U T

'2 g

2. NORTH A M t EAIT C

2 2

2 2

. R3 2 2

2 2

2 4

l 4.R0W: WEST 2

3 6

9 12 15 10 I,

11 10 10 20 27 42 48 06 6!

'l

5. ROK 3 DST 4

l.a.F.DW4 3

3 6

9 14 16 2

10 10 10 18 26 40 46 6e

7. R$ ! ufl1 E. ROL 5 IAST 8

0 9

16 20 30 74 60 ei-2 2

2 4

4 10 10 6

9. !:L'Th R0W e rHT

'2

10. 500th R0k 6 EAST 2

3 4

4

'2 s

2 2

3 10 4

RIA TOE EUILt!s6 130' un.=.w= s.-

_. =

1. ! Lik DCORWi !"!M HASE

. = =.

C

?

.. OE.W.AL AFIA SOUTH ! TEM CHA!!

C

. tim.AL AREA 3 L'TH IAST REA: TOR C

2.

I?,Ti.A; AFla CETH IA37 RIA; TOR C

!. O.!!!!! !TIA* CHASI NORTH 1

4. fit.03 P0r.!!DP. Ai liiAl: L!h!!

600 700 700 13) 1250 2200 3000 3000 30M 2

2 I-3s2..

i j

(

t

.I I

f

/

I I,

s

p

(

Table 5

DNIN !. MTCN WIT 1 RINITEIT MTA KY.2 7-!!-06 PRELINIMRY 8ATA: SUBJECT TO E YS!FICAT! k MTA WT STREI. C et/hr R Not neasured 07-52. 07-03 4743 0743 87-04 07-05 07-04 07-04 07-05 07-05 718E2 1622 19 3 21:2 0010 idt 1715 2055 18 0 1900 ERENCE W:

BASELINE 1-RIL 1C-if 3 3-tLS X-il.3 7 -18.3 SC-ifJ 6C-HLD 94 fg APPR0!!M TE NY9 ROE D $CFM:

0. 0 0.0 6.0 12.0 18.0 20.0 27.0 24.0 48.0 60.0 APP 90!!MTE iffDR000 PPM:

0.00 0.00 0.22 0.38 0.59 0.67 0.?5 1.25 1.61 0.02 UNIT 2 SERY13 It!!LDIE ANNEI

1. NOR G t!5T C M ! M 0.017 6.0!!

0.017 0.017 0.02 0.0!?

0.02 0.024 t.Ch3 l

2. 2NTE C3Rl!DR 0.016

3. EE OF CDRR!!DP AT CDM8.R30M t 015 0.015 0.015 0.02 0.02 0.02 0.03 0.0:4 0.017 0.016 0.0:7 C.017 0.022 0.0!7 0.017 0.03 0.03

4. CE R!!DR AT 0: 000R 0.016 h014 0.017 0.016 0.0:2 0.017 0.018 0.0:4 0.024

• CDRR!!DR 003U7$1D! D UIP. R30n 0.016 C.016 0.016 0.016 0.021 0.016 0.017 0.023 0.004

==

=

SE!3 !U!'!!E 120'

_= %

- = = = = =,

m. --

==----.m.--

1. CDP *.!!2.5 AT MO TOOL R005

_a

==

0.016

'.t15

$0!s h0!!

0.01B 0.017 0.0!!

0.0!7-0.02

. CMF!!3 A* P.A!ETHAK3 SHO*

0.017

' !:t 0.0 '

O.017

(.01B h0!7 0.0:2 h017 h0:1

• St31*.! ki UF13 LC16 t.0 '

(.0:5 0.017 0.0!!

0.017 0.017

( 017 t.02:

4. CC E!!:f AT 21;h R 2 t.017

.:17 v.0!?

0.012 0.0:9 LO2; 0.0:3 LCM 0.0;t E. !!$ 5::: Eh!!*.J 0.014 C.014 C.0:5 0.017 LO:7 0.0:!

h019

?.0!8

=s.=m==.=============,=_

05*RO. It':;.!!Ni 10'

_,,= =,,,,,-

sum.====.==..======..=.u.-==

. H M A! F08.5.9Af F*!*.I

(.0 '

(.::*

t.0:5

(.0:5 C.0!S 0.01e

(.0!7 0.01t 0.(17

___._---===.===us=====.

• 5 9 '.A!

0.03 0.;h 0.003 LO 0.03 0.03 0.027 0.0h 0.0M

!. t:31G R22 0.0:2 0.0::

LO!!

0.013 0.013 0.0:3 0.0;3 0.01:

4. !::l*h IC NF FT!3 0.C

.. 24 0.0

• 0.000 0,0:2 0.00 LO2 0.0; C.019

1. AT MAC/FDDI 3NTERS 0.014

..!!3 0.014 0.0:5 0.017 0.01:

0.0:5 0.01n h0!t e,. COU; 5 t.Ci!

' (:

c 0:7 0.017 0.018 0.01t 0.001 0.016 0.02:

• 13FDM liDF F*!!5HT ELEV.

0.012

0. 014 0.0!6 0.016 0.015 0.01 LC!5 0.0:7 E. D WAi 35713 70 00!.TED' ItDE.

0.014

'07 0.016 0.017 0.017 0.016 0.015 0.0:6 0.017 fT.3 3333.a3 33.g33333.y.33 3 33333333 3333 33 33333 33 3333313 3333m- * " -

.3323 33.E5E35 32 3333333333333r3333 333 333333 e

h 7

E

[; '

o--

I Table 6

DWIN 1. MTtN WIT 1 NIMITEST MTA REV.2 7-11-96 PRELINIMARY BATA: IWJECT TO E VERIFICATION _

C:,TA ST DT99. (2 st/hr N Not Nessured 07-02 07-03 07-03 GT-03 07-04 07-05 07-04 07-04 07-05 07-05 TIE:

1&22 19 3

-2152 0010 1659 1715 2055 1820 1900 EstENCE 5:-

BAIELIE l-SH L ~(C-ilLB 2C 45.3 R-133 7 43,3 3C-#g.3 g-gp 94 93 l'

APPR0!!M TE Nf9R00EN SCFN 0.0 0.0 6.0 12.0 18.0 20.0 27.0 34.0 40.0 60.0 GPP901: M TE NYOR08 0 PPR: ~

0.00 0.00 0.22 0.38' O.59 0.67~

0. 95 1.25 1.61 2.02 l'

AREA RADIATI N NON! TORS

~l

6. T!P AREA REACTOR BUILDINE 2

4 3

4 5

3 4

4 4

7. 130' N.E. WORK AREA / REACTOR BLDS 2

1 2

3 3

2 2

2 3.5 8.130' S.N. NORK AREA / REACTOR BLD6 i

9. 150' WRK AREA / REACTOR BLDE 4

2 3

3

.3 2

' 10. 158' RI WATR SAMPLE N000 AREA /R8 -

4 5

3 4

4 to 4

4 4

7 23.CONTROLR00n/TI 0.M 0.025 0.035 0.04 0.035 0.04 0.045 0.045 0.035

24. CONTROL ROtr./Tl 0.02 0.02 0.02 0.02 0.015 0.02 0.02 0.02 0.02

25. OPHATINS FLODR NORTHEND M

0.6 06 0.7 0.7 0.8 1

1 1

26. OPERATIN6 FLODR NORTHEN0/TB 0.2 0.2 0.2 0.2 0.2

- 0.2 0.2 0.2

27. FEEDWATS AREA /T3 3

3 3

3 3

4 4

4 3

32. RECOR$!NER ILDS OPERATOR AREA /RC8 2

2.5 2.5 2

2 2

2.5 2.5 2

23. RC3 ILDE. N W ttEAT E! CHANGE AREA

~

0.4 0.5 0.5 0.45 0.5 0.5

~ 0. 5 0.5 0.5

} 35. WAITE TREATMENT BLD6.0PERATOR AREA /W6T 0.2 0.2 0.

0.3 0.2 0.2 0.

nua

..==- -

=

n====

unn nu 5===w

- - en.w = 2.unnu.

l l

l l

I i

I l.

t l

15 a

p t

p Table 7

EDNIN 1. MitH WIT 1 MINITEST DATA REV.2 7-!! M PRELIMINARY DATA: 5WJECT TO E YERIFICAT!M L';TA NOT DTEPS C mR/hr R Not Measured 0742 07-03 0743 0743 0744 07-05 07-04 0744 07-05 07-05 7

TIME:

1622 19:5 21:2 0010 1659 1715 2055

!!20 1900 SEDUENE NO:

BASELINE l-SUIL (C-a.J 2C-MLB 3C-MLD 7-HLD SC-MLB 6C-HLD

. 94 98 APPRDIIMATE HYDRDE D SCFM 0.0 0.0 6.0 12.0 18.0 20.0 27.0

!a.0 42.0 60.0 APPR0!! MATE HYDRD6 B PPR:

0.00 0.00 0.22 0 :8 0.59 0.67 0.95 1.25 1.61 2.02 a

'=n

-=.-

8LANT SITE (IN!!!! FRGTECT U AREA)

_==n==.

=1

, = =.. - -

1. SECURITY tu!L!lh5 EAST (2

0.06 0.06 0.08 0.06 0.12 0.16 0.24 0.24-

2. ROADWAt AT WARENCUSE (2

0.06 0.06 0.08 0.1 0.14 0.16 0.16 0.1t

3. WEST :DTER OF TUGINE ILDG G

0.05 0.04 0.07 0.1 0.11 0.14 0.4 0.4

4. NORTH EK! TURE!E BLDS C

0.04 0.04 0.04 0.04 0.06 0.02 0.06 0.0c

" N3 fH END D1!!EL PLDE C

0.03 0.05 0.04 0.04 0.06 0.06 0.07 047

6. GNTTiAL AREA NORTH DF RADWA!TE C

0.04 0.0:~

0.04 0.04

0. 0c 0.08 0.02 0.0$

7. h5 ti 00:7 Ai RADEASTE C

C.07 0.07 0.08 0.1

'J.14 0.15 0.!!

0.:!

6.n*3'0* CST C

0.04

0. 04 0.05

0. 06 0.06

(.07 0.06 C.01

9. K*RTF WEIT C3NIE D'1Ai! SUP50RT t.DEC 0.04 0.04 0.04

?.05 0.05 0.06 0.J6

0. h J

10. 30'Jih UN!* 2 Rt.DWA.!TE DOC).

C t.06 C.0c 0.0:

0.06 0.05 0.06 C.07 C.'"

!!. !KTRA.' D'*Ci!TE UNIT 2 TURF!E ELDS C

t.03 0.03 0.0; 0.37 0.04 0J4 0.09 0.0*

12. NM Tn 5!!! SERY!2 ktI6

!!. NC AT C3TRO.1 TU?.BINE !L!3 ?ONDRY 0.2:

0.3 0.6 0.6 0.7 C.!

14.' Of. ROAD !!Th!Es EEC"R!TY L WAREHO"i!

0.2 0.22

0. 4 0.c

(.c D.12 0.16

'2

(.2 320E(338123883333333 84..s.33333333333 3333333333333333.3g3333333333333333333333.

333333 2333 5.a33333 r.33333333333333333333333333333 l~

l l

I I

I l

I I

I I

l l

l 18 1

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