ML071310176

E-Mail from J. Noggle of USNRC to T. Rice of NYSDEC, Regarding IP Dose Calculations

ML071310176
Person / Time
Site:	Indian Point
Issue date:	02/23/2007
From:	Noggle J NRC/RGN-I/DRS/PSB2
To:	Rice T State of NY, Dept of Environmental Conservation
References
FOIA/PA-2007-0166
Download: ML071310176 (2)

Text

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Date:

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James Noggle Timothy Rice 02/23/2007 1:26:07 PM Re: IP Dose Calculations

Dear Tim,

The groundwater dose calculation was since revised in July and most recently, December 2006 to update the Sr-90 and Cs-137 well results. Current calculated doses are: 3.13E-3 mrem total body and 1.19E-2 mrem max organ (bone). Both are to an adult as the most limiting age group. I will fax you the summary page for your use.

Regards, Jim

>>> "Timothy Rice" <tbrice@gw.dec.state.ny.us> 02/23/2007 12:48 PM >>>

Hello Jim, Have you seen any revised dose calculations from Entergy since the April '06 submission?

I thought they had done some updates since then based on their better understanding of groundwater flow and conc.

Thanks, Tim

IPEC Summary for Storm & Ground Water releases (H-3, Ni-63, Sr-90, Cs-1 37)

Adult mrem (most limiting)

Sum of IPEC monitoring well calculations for units 1, 2, & 3 (Areas 2, 3a, & 3b)

Doses, in mrem ISOTOPE

>BONE ~ LI~VERU.

TOT~ BODY THYROID

~KIDNEY LUGI-I H-3 O.MOE4OO 9MOE-O6' 9:OOE-06 j9.OOE-06' 9.OOE-06~ <9.OOE-06

~9.00E-06 Ni-63 1.~33E-03 9.20E-05~ 4.45E-05 T. OOE+OO0 O.OOE+00

~O.OOE+OO0 1.92E-O5 Sr-90

.9.79E-03 O.OOE+OO 2.40E03 O.OOE+OO O.OOE+O.

O.OOE+OO 2.82E-04 Cs-i 37 1i W

50E-04 I 1.03E-03 B

6.72Est4 2OOnE+ar 3.48E-04, 1.1 6Eto 4 1r 98Edr 5 totals 1.19E-02 I 1.3E-031 3.1 3E-O3 I9.OOE-06 I3.57E-04 I1.25E-0I4

-3,30E-04 Storm Drain Water from Zone B, East/West Unit 2, near MH-2, going to river directly

~ci 8.05E+05

~6.72E+02 3.90E+02 3.57E+02

~8.06,E+05 I 6E0 Storm Drain Water from Zones C and D/E (Central U2 & U1/U3) to Discharge Canal Doses, in mrem_

ISOTOPEZ~~

[30 ULVE TOT BODY ITHYR~OID~ I KIDNEY I LUNG G I-L H-3 I 0" 0 I 2.82E"081 2.82E..8 I 2.82E-08 I 2.82E:B-0

• 8 I 2.8" I 2.82E-081 Totals:

Doses, in mrem H-3 only O.QOOE 9.1E 61 9.....E-

.I' 910E-06 I 9.19E-06 I 9.19E-6 1 9.19E-46 BONE L IVER~ T~O~TBODY flTHYROID

KIDNEY,

~LUNG _L_ )-LL all isotopes 1.19E-02 1.13E-0,3 3.13E-03

, 9.19E-06>

3.57E-047 1.25E-04

~3 3E-04

%Annua LiMit 1

0.119 0.01*fW 0.104~

1 0.0001 0.0036 0Ž.00212 10,00,3 tic/ '5 see above