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

IJames Noggle

- Re: IP Dose Calculations ii iiiiiiiii i* .. . ii- iiiiiii~ii iii ,,P - age1I From: James Noggle To: Timothy Rice Date: 02/23/2007 1:26:07 PM

Subject:

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 ~ci H-3 O.MOE4OO 9MOE-O6' 9:OOE-06 j9.OOE-06' 9.OOE-06~ <9.OOE-06 ~9.00E-06 8.05E+05 Ni-63 1.~33E-03 9.20E-05~ 4.45E-05 T. OOE+OO0 O.OOE+00 ~O.OOE+OO0 1.92E-O5 ~6.72E+02 Sr-90 O.OOE+OO 2.40E03 O.OOE+OO

.9.79E-03 O.OOE+O. O.OOE+OO 2.82E-04 3.90E+02 Cs-i 37 W 1i 50E-04 I 1.03E-03 B 3.57E+02 6.72Est4 2OOnE+ar I3.57E-04 3.48E-04, I1.25E-0I4 totals 1 .19E-02 I 1.3E-031 3.1 3E-O3 I9.OOE-06 1.1 6Eto4 -3,30E-04 1r98Edr5 ~8.06,E+05 Storm Drain Water from Zone B, East/West Unit 2, near MH-2, going to river directly 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 GI-L H-3 I 0" 0 I 2.82E"081 2.82E..8 I 2.82E-08 I 2.82E:B-

• 8 0 I 2.8" I 2.82E-081 tic/'5 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 LIVER~ 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 ~33E-04 see above

%Annua

% LiMit 1 0.119 0.01*fW 0.104~ 1 0.0001 0.0036 0Ž.00212 10,00,3