ML061320136

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E-mail from D. Croulet of Entergy to Various, Regarding Effluent Dose Assessments
ML061320136
Person / Time
Site: Indian Point  Entergy icon.png
Issue date: 01/16/2006
From: Croulet D
Entergy Nuclear Operations
To: Noggle J
NRC/FSME
References
FOIA/PA-2006-0140
Download: ML061320136 (23)
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Text

lJames Noggle - FW: EHffluent dose assessments Page 1 From: "Croulet, Donald" <dcroule~entergy.com>

To: "Conroy, Pat" <PConroy~entergy.com>, "Cox, Mark R" <mcox9O~entergy.com>,

"Bowman, Greg " <GBowm90 ©cc--exsO3.prod.entergy.com>, "Janicki, John" <JJanick@entergy.com>,

"'James Noggle"' <JDN~nrc.gov>, "'Timothy Rice"' <tbrice@gw.dec.state.ny.us>,

"'bolivei a@amnucins.com"' <boliveira @amnucins.com>, "PRICE, ERNEST JR"

<EPRICE2@entergy.com>

Date: 1/16/06 9:22AM

Subject:

FW: Effluent dose assessments Dose assessments attached.

From: Sandike, Steven Sent: Monday, January 16, 2006 8:07 AM To: Croulet, Donald

Subject:

Effluent dose assessments Don,

1) My work with Hamawi on the bedrock pathway. ,-

<<Final Bedrock DoseCalcs.pdf>>

2) My assessment of the U2 storm drains only.

<<Tritium in Storm Drains.pdf>>>

Steve Sandike Effluents/ RMS ENN Indian Point Energy Center Buchanan, NY 10511-0308 phone: 914-736-8455 fax: 914-734-6010 email: ssandik entergy.com <mailto:ssandik entergy.com>

I

I aes Noggle - FW: i effluent dose assessments Page 1 IJa.mes Noggle - FW: Effluent dose assessments Page 1 From: "Croulet, Donald" <dcroule entergy.com>

To: 'James Noggle"' <JDN@nrc.gov>

Date: 1/16/06 9:29AM

Subject:

FW: Effluent dose assessments Jim, I believe this is information that addresses the Special Inspection Charter objective #3.

From: Sandike, Steven Sent: MDnday, January 16, 2006 8:07 AM To: Croulet, Donald

Subject:

Effluent dose assessments Don,

1) My work with Hamawi on the bedrock pathway.

<<Final Bedrock DoseCalcs.pdf>>

2) My assessment of the U2 storm drains only,-i

<<Tritium in Storm Drains.pdf>>

Steve Sandike Effluents / RMS ENN Indian Point Energy Center Buchanan, NY 10511-0308 phone: 914-736-8455 fax: 914-734-6010 email: ssandik © entergy.com <mailto:ssandik @entergy.com>

Ad Entergy Indian Point NPP Dec 13, 2005 IPEC-CHM*-05-042 MEMORANDUM TO: R. LAVERA - Sr. HP/Chem Specialist FROM: S. SANDIKE - Sr. HP/Chem Specialist

SUBJECT:

UPDATE TO INITIAL MONITORING WELL OFFSITE DOSE CALCULATION Chemistry memorandum IPEC-CHM-05-034 identified a technique and a dilution volume estimate for

-,,determining a bounding calculation for the Tritium and other isotopes leaving the unit 2 SFP and being released to the river via the bedrock (under the discharge canal and the normal dilution pathway). This earlier memo applied standard Reg Guide 1.109 modeling with the dilution volume consistent with the effected cross-sectional area of the Hudson, under which the H-3 was expected to escape to the river from the sediment. The basis for this early modeling was derived from original ODCM basis information, specifically, "Radio-ecological Studies of the Hudson River", from NYU and Dr. Paul Linsalata (1987).

Subsequent to issuance of the earlier memo, additional evaluations were conducted on site, and independently by Dr. John Hamawi of Entech Engineering. Dr. Hamawi was asked to perform two tasks:

1) Re-evaluate a more appropriate dilution term for this calculation, and 2) Independently perform a bounding olTsite dose calculation, using this dilution factor. In his report, Dr. Hamawi identified an earlier official calculation and reference to the FSAR to determine the volume of water equivalent to the volume of water passing by the plant (a typical 6-hour half-tidal cycle), during the same release interval identified in the Reg Guide 1.109 modeled release calculation. His report states:

The activity released during the entire quarter is further assumed to get released into the river during a single 6-hour half-tidal cycle, and to mix uniformly with the average water mass that traverses the Indian Point site during the same time interval. This dilution volume is equal to 5.495E+07 m3 (1.45E+010 gal) when there is no fresh-water inflow from the estuaries (from Calckulation IP3-CALC-RAD-00016, pg 45, based on the UFSAR). The scenario is equivalent to a slug of water, equal to 5.49E+07 m3, moving back and forth by the Indian Point site carrying the same concentration listed above for an entire quarter, without additional dilution.

Dr. Hamawi's dilution volume, then, for a bounding calculation of a release over a quarter was 1.45E+1 0 gallons. He! then applied this dilution to an original and approved code (AQUADOS) to determine the potential offsite dose. Site specific dose factors, source term, and exposure interval were supplied from the site Chemistry group. His findings attached are summarized below:

Case I (without the drinking-water pathway): 2.50E-05 mrem/quarter, adult total body 4.15E-05 mrem/quarter, child bone.

Case 2 (with the drinking-water pathway): 3.77E-05 mrem/quarter, adult total body 6.94E-05 mrem/quarter, child bone.

Page 1

The Chemistry group conducted an independent review of Dr. Hamawi's calculations using the sil:e's ODCM and implementing software. Once the dilution term had been decided, the dose calculaticn progressed according to standard Reg Guide 1.109 modeling, as follows:

Release Rate I 10000 ml/day or 2.64E+00 gpd or 0.001834728 gpm Duration o Release, in days 911 Waste vol released = 2.40E+02 gal Dilution flow l1.11 E+05 Gpm Dilution vol released = 1.45E+10 gal Dil Factor 1.65E-08 (from John Hamawi's dilution determination) l Activity IOCFR20 PRE POST POST MICRO-l ISOTOjPE Released EC*10 DILUTION DILUTION DILUTION CURIES CONCIMP uCi/ml conc limit C uCi/mI CONC/MPC RELEASED

  • ue!eIrH-3 2.20E-02 1.OOE-02 2.20E+00 3.64E-10 3.64E-08 i2.OOE+04 MN-54 3.OOE-04 O.OOE+0O O.OOE+00 O.OOE+00 6.00E+00 FE-55 1.OOE-03 O.OOE+00 O.OOE+0O O.OOE+0O O.OOE+00 CO-53 2.OOE-04 O.OOE+0 O.OOE+00 O.OOE+00 O.OOE+OO CO-60 1.70E-07 3.OOE-05 5.67E-03 2.81 E-15 9.37E-11 1.55E-01 NI-62= 4.1OE-07 1.OOE-03 4.1 OE-04 6.78E-15 6.78E-12 3.73E-01 SR-90 5.40E-07 5.OOE-06 1.08E-01 8.93E-15 1.79E-09 4.91 E-01 SB-125 3.OOE-04 O.OOE+0O O.OOE+00 O.OOE+0O O.OOE+00 CS-134 6.80E-07 9.OOE-06 7.56E-02 1.12E-14 1.25E-09 6.19E-01 CS-137 1.14E-05 1.OOE-05 1.14E+00 1.88E-13 1.88E-08 1.04E+01 CO-57 6.OOE-04 O.OOE+0O O.OOE+O0 O.OOE+0O O.OOE+OO TOTAL 2.20E-02 n/a 3.53E+00 3.64E-1 0 5.83E-08 2.OOE+04 NUREG 0133 "Applicable Factor" for Near Field Dilution = I 1.OOE+O0 l (not applicable)

Adult Total Body mrem ISOTOPE BONE LIVER TOT BODY THYROID KIDNEY LUNG GI-LLI H-3 O.OOE+00 2.24E-07 2.24E-07 2.24E-07 2.24E-07 2.24E-07 2.24E-07 MN-54 O.OOE+00 O.OOE+0O O.OOE+0 O.OOE+00 O.OOE+0O O.OOE+00 O.OOE+00 FE-55 O.OOE+00 O.OOE+0O O.OOE+00 O.OOE+00 O.OOE+00 O.OOE+00 O.OOE+00 C0-58 O.OOE+00 O.OOE+0O O.OOE+00 O.OOE+00 O.OOE+OO O.OOE+00 O.OOE+OO CO-60 O.OOE+0O 9.08E-09 2.OOE-08 O.OOE+0O O.OOE+0O O.OOE+00 1.71 E-07 NI-63 7.36E-07 5.11 E-08 2.47E-08 O.OOE+00 O.OOE+0O O.OOE+O0 1.06E-08 SR-9( 1.23E-05 O.OOE+00 3.02E-06 O.OOE+0O O.OOE+00 O.OOE+OO 3.55E-07 SB-1 25 O.OOE+0 O.OOE+0O O.OOE+0O O.OOE+OO O.OOE+0O O.OOE+0O O.OOE+00 CS-134 1.02E-06 2.42E-06 1.97E-06 O.OOE+OO 7.81 E-07 2.60E-07 4.22E-08 CS-137 2.18E-05 2.98E-05 1.95E-05 O.OOE+OO 1.01 E-05 3.37E-06 5.76E-07 CO-57 O.OOE+0O O.OOE+O0 O.OOE+0O O.OOE+OO O.OOE+00 O.OOE+00 O.OOE+0O TOTAL 3.59E-05 3.25E-05 2.48E-05 2.24E-07 1.11E-05 3.85E-06 I 1.38E-06 Page 2

The IPEC ODCM dose calculations above do NOT include added dose for the non-existent potable water pathway. Dr. Hamawi provided dose calculations both with and without this term for evaluation purposes, in light of the highly publicized potable water concern.

The independent dose comparison was nearly identical, as summarized below:

Dr. Hamawi Calculation Site ODCM Calculation mrern/quarter, adult total body 2.50E-05 2.48E-05 mrern/quarter, adult bone 3.61E-05 3.59E-05 mrern/quarter, child bone 4.15E-05 4.13E-05 Dr. Hamawi's work was officially provided to ABS consulting for inclusion in their formal report.

These effoits will serve as a starting point to bound the offsite dose as a result of the loss of inventory from the Spent Fuel Pool, or the identified activity in site Monitoring Wells. These calculations were performed and verified to bound the offsite dose in communications to the NRC and the general public.

Since they define a worst-case scenario, use a conservative absence of routine dilution flow, and use an actual-s'u'rcdeterm from the Spent Fuel Pool itself, further determinations may be performied"!tio~imre accurately quantify the release for the annual effluent report.

Attachment - RADIOLOGICAL IMPACT EVALUATION OF WATER LEAK AT INDIAN POINT UNIT 2 Dr. John Hamawi, Entech Engineering (Not an official copy of this work)

SS/ss cc: W. Axe Ison D. Wilson D. Quinn D. Mayer D. Leach Page 3

RADIOLOGICAL IMPACT EVALUATION OF WATER LEAK AT INDIAN POINT UNIT 2

1.0 DESCRIPTION

This report documents a preliminary evaluation of the potential radiation doses to offsite receptors resulting from tha3 leakage of contaminated water from Indian Point Unit 2 (IP2) to the Hudson river. The exposure pathways considered are the ingestion of contaminated fresh-water fish and of salt-water invertebrates. It is noted that the drinking-water pathway is not included in the Indian Point Land Use Census or in the Offsite Dose Calculation Manual (ODCM). Nonetheless, for informational purposes, results are also presented for a scenario where the drinking of contaminated water is an additional exposure pathway.

2.0 INPUT VARIABLES AND ASSUMPTIONS The present analysis was based on ENTECH's AQUADOS computer code, which makes use of the models and dala in Regulatory Guide 1.109, with one exception. In the present application, and in line with the IP2 ODCM, the AQUADOS data base was modified to make use of the site-specific (Indian Point) fish bioaccumulation factor for Cs; this is equal to [224 (pCi/kg) per pCi/liter of water)], about an order of magnitude lower than the regulatory value of 2000.

The basic assumptions and input variables employed in the analysis were as follows:

(a) ,_ The source of the water contamination identified in the on-site monitoring wells was

-i " a'9s med to be the spent fuel pool (SFP). iL (b) The radionuclide concentration in the leaking water to the river was assumed to be the same as the worst-case measured value in the water collected from the cracks in the SFP concrete wall, as shown in Table 1 below.

(c) The contaminated-water leakage rate to the river was assumed to be 10 liters/day.

(d) The exposure interval of the offsite receptor was assumed to be 91 days (1 quarter).

(e) The entire activity in the leaking water during the quarter was assumed to enter the river without any in-transit decay. As such, the activity released into the river during one quarter is as follows:

Table 1 - Radionuclide Concentrations in Leak Water and Potential Activity Released to the River Radionuclide SFP Concentration Activity Released to River (PCi/ml) During I Calendar Quarter (C;)

H3 2.20E-02 2.OOE-02

  • CS134 6.80E-07 6.19E-07 CS137 1.14E-05 1.04E-05 C060 1.70E-07 1.55E-07 SR90 5.40E-07 4.91 E-07 N163 4.1 OE-07 3.73E-07
  • 2.20E-02 (pCi/ml) x 10,000 (ml/day)
  • 91 (days) x 1.OE-06 (Ci/pCi) = 2.OOE-02 (Ci)

(e) The activity released during the entire quarter is further assumed to get released into the river during a single 6-hour half-tidal cycle, and to mix uniformly with the average water mass that traverses the Indian Point site during the same time interval. This dilution volume is equal to 5.49E+07 m3 (1.45E+010 gal) when there is no fresh-water inflow from the estuaries (from Calculation IP3-CALC-RAD-00016, pg 45, based on the UFSAR). The scenario is equivalent to a slug of water, equal to 5.49E+07 m3, moving back and forth by Page I

the Indian Point site carrying the same concentration listed above for an entire quarter, without additional dilution. As an example, the tritium concentration in the river water, for an entire quarter, would be equal to [2.OOE-02 (Ci) / 5.49E+07 (m3)] x 0.001 (m3/liter) x 'I.OE12 (pCi/Ci) = 0.364 (pCi/liter). Refer to one of the AQUADOS computer outputs in Sec. 5 for the concentrations of the other radionuclides.

(f) Decay correction during the 91-day exposure interval was not accounted for. Due to the long half-lives of the radionuclides of interest, decay correction in the present application is insignificantly small.

(g) Doses were calculated by considering the following exposure pathways:

Case 1: Ingestion of contaminated fresh-water fish and salt-water invertebrate, and Case 2; Ingestion of contaminated fresh-water fish, salt-water invertebrate, and drinking water.

As noted above, the drinking-water pathway is not included in the Indian Point Land Use Census or in the ODCM. Nonetheless, Case 2 above was analyzed for informational purposes and/or use, should there be an interest or a need in assessing the potential radiological impact from the ingestion of contaminated water.

3.0 RESULTS '

The ACQUADOS computer outputs for the two cases analyzed are presented in Sec. 5. Refer to that section for complete details.

Summaries of the results are presented in Table 2 for the scenario without the drinking-water pathway (Case 1), and in Table 3 for the scenario with the drinking pathway included (Case 2). It is seen that the worst-case total body and critical organ doses are as follows:

Case 1 (without the drinking-water pathway): 2.50E-05 mrem/quarter, adult total body 4.15E-05 mrem/quarter, child bone.

Case 2 (with the drinking-water pathway): 3.77E-05 mrem/quarter, adult total body 6.94E-05 mrem/quarter, child bone.

For informational purposes and comparative analysis, Table 4 presents the annual doses from liquid releases from the entire site, for the calendar years 2000 to 2004. From this table, it is seen that the lbwest annual doses to the total body and critical organ are 3.4E-03 mrem and 1.06E-02 mrem, respectively, for 2004. The corresponding quarterly doses are 8.5E-04 and 2.65E-03 mrem/quarter. These are at least 30 times higher than the conservatively calculated doses (without the water-ingestion pathway) from the potential leakage of contaminated water to the river.

Table 2 - Upper-Bound Doses (mremlquarter) Resulting from the Postulated Leakage of Contaminated Water into the Hudson River, and the Ingestion of Contaminated Fresh-Water Fish and Salt-Water Invertebrates - Case 1 AGE GROUP BONE LIVER T. BODY THYROID KIDNEY LUNG GI-LLI ADULT 3.61E-05 3.28E-05 2.50E-05 2.25E-07 1.12E-05 3.88E-06 1.39E-06 TEENAGER 3.57E-05 3.40E-05 1.48E-05 1.73E-07 1.16E-05 4.61E-06 1.07E-06 CHILD 4.13E-05 3.08E-05 7.18E-06 1.44E-07 1.01E-05 3.72E-06 5.03E-07 Page 2

Table 3 - Upper-Bound Doses (mrem/quarter) Resulting from the Postulated Leakage of Contaminated Water into the Hudson River and the Ingestion of Contaminated Fresh-Water Fish, Salt-Water Invertebrates, and Drinking Water - Case 2 AGE GROUP BONE LIVER T. BODY THYROID KIDNEY LUNG GI-:ZL1 ADULT 5.15E-05 4.38E-05 3.77E-05 7.21E-06 1. 96E-05 1.13E-05 8 .83Z-06 TEENAGER 4.81E-05 4.28E-05 2.35E-05 5.10E-06 1.78E-05 1.OOE-05 6 .32I2-06 CHILD 6.94E-05 4.84E-05 2.28E-05 9.57E-06 2.22E-05 1.41E-05 1. 03M-05 INFANT 2.25E-05 1.95E-05 1.35E-05 9.26E-06 1.20E-05 1.04E-05 9.4 62-06 Table 4 - Liquid Effluent Doses from the Entire Indian Point Site (From Reg. Guide 1.21 Annual Reports)

Total Body Critical Organ Calendar Annual Dose Annual Dose Year (mrem) (mrem) 2000 6.18E-02 1.01E-01 2001 1.73E-02 2.79E-02 2002 1.21 E-02 4.18E-02 2003 5.32E-03 1.57E-02 2004 3.40E-03 1.06E-02

4.0 CONCLUSION

S Despite the overly conservative assumptions employed in the analysis, it is seen that the doses to any organ of an olfsite receptor, due to the potential leakage of contaminated water from IP2 to the river, are less than 1.0E-04 mrem/quarter, significantly lower than the ODCM quarterly limits of 1.5 mrem to the total body and 5 mrem to any organ. In.addition, these doses are at least 30 times lower than the doses from all liquid releases from the site. As such, an elaborate analysis utilizing a more refined river-dilution model is not warranled. It is also noted that the worst-case dose contributors are Sr-90 and Cs-137, which may not even get into the river because of their expected long transit time through the ground, from the site to the river.

Indeed, only tritium has been identified as a contaminant in the control wells at the site.

As a final remark, it is noted that scoping analyses based on the use of the Committed Effective Dose Equivalent (CEDE) dose conversion factors in Federal Guidance Report 11 for the ingestion pathway demonstrated that the CEDEs would be numerically very close to the whole body doses listed above. The same conclusion would also apply to the Total Effective Dose Equivalents (TEDEs) in the present applica:ion, since there is no external radiation exposure.

Paj;e 3

5.0 AQIJADOS OUTPUT AQUADOS CASE 1 (Excludes the water-drinking pathway)

AQUADOS (REG. GUIDE 1.109 - AQUATIC PATHWAY RADIATION EXPOSURES) NYPA / ENTECH ENGINEERING 2-Nov-OS PAGE 1 INPUT DATA LISTING - FILE 4 LINE 1 2 3 4 5 6 7 8 SEQ. 12345678901234567890123456789012345678901234567890123456789012345678901234567890 1 IP2 SFP LEAM; IQ RELEASE IN 6-NR TIDAL FLOW w/o FURTHER DILUTION; W/O WATER Path 2 1.0 6.0 3.934E-04 3.934E-04 0.0 3 2190.0 2190.0 0.0 0.0 4 0.0 0.0 0.0 0.0 0.0 5 H3 2.OOE-02 C060 1.55E-07 N163 3.73E-07 SR90 4.91E-07 6 CS134 6.19E-07 CS137 1.04E-05 7

IP2 SFP LEAK; 1Q RELEASE IN 6-HR TIDAL FLOW w/o FURTHER DILUTION; W/O WATER Path DISPERSION FACTOR - FISH INGESTION PATHWAY (sec/m3) 3. 934E-04 DISPER3ION FACTOR - DRINKING WATER PATHWAY (sec/m3) 3. 934E-04 DISPERSION FACTOR - SHORELINE DEPOSITS (sec/m3) .OOOE+00 TRANSIr/BIOACCUMULATION DECAY TIME (FISH INGESTION, hrs) .OOOE+00 TRANSIr TIME (DRINKING WATER PATHWAY, hrs) .OOOE+00 TRANSIr TIME (SHORELINE DEPOSITS, hrs) .OOOE+00 SHORELINE DEPOSIT PRE-EXPOSURE ACCUMULATION TIME (yrs) .OOOE+00 SHORELINE WIDTH FACTOR .OOOE+00 RELEASE DURATION (hrs) 6. OOOE+00 EXPOSURE INTERVALS (hrs)

FRESH WATER AQUATIC FOODS 2.190E+03 SALr WATER AQUATIC FOODS 2.190E+03 DR49KING WATER .OOOE+00 SHOXELINE DEPOSITS .OOOE+00 AGE-SPECIFIC USAGE FACTORS PATN AY ADULT TEENAGER CHILD INFANT FRUIrS & VECET. (kg/yr) 520.0 630.0 520.0 .0 LEAFf VEGETABLES (kg/yr) 64.0 42.0 26.0 .0 MILE (liters/yr) 310.0 400.0 330.0 330.0 MEAT AND POULTRY (kg/yr) 110.0 65.0 41.0 .0 FISH (kg/yr) 21.0 16.0 6.9 .0 OTHE1 SEAFOOD (kg/yr) 5.0 3.8 1.7 .0 DRINKING WATER (liters/yr) 730.0 510.0 510.0 330.0 SHORELINE RECREAT. (hr/yr) 12.0 67.0 14.0 .0 INHALATION (.3/yr) 8000.0 8000.0 3700.0 1400.0 IP2 STP LEAK; 1Q RELEASE IN 6-HR TIDAL FLOW w/o FURTHER DILUTION; W/O WATER Path RADIONUCLIDE RELEASE INVENTORY NUCLD)E REl. (Ci) NUCLIDE Rel. (Ci) NUCLIDE Rel. (Ci) NUCLIDE Rel. (Ci)

N3 2.000E-02

  • C14 .OOOE+00 NA24 .OOOE+00 P32 .OOOE+00 CRS1 .OOOE+00 MN54 .OOOE+00 MN56 .OOOE+00 FES5 .OOOE+00 FE59 .OOOE+00 C058 .OOOE+00 C060 1.55E-07
  • N163 3.730E-07 N165 .OOOE+00 CU64 .OOOE+00 ZN65 .OOOE+00 ZN69 .OOOE+00 BR83 .OOOE+00 BR84 .OOOE+00 HR85 .OOOE+O0 RB86 .OOOE+00 RB88 .OOOE+00 RB89 .OOOE+00 SR89 .OOOE+00 SR90 4.910E-07 SR91 .OOOE+0O SR92 .OOOE+00 Y90 .OOOE+00 Y91M .OOOE+00 Y91 .OOOE+00 Y92 .OOOE+00 Y93 .OOOE+O0 ZR95 .OOOE+O0 ZR97 .OOOE+00 NB95 .OOOE+00 MO99 .OOOE+00 TC99M .OOOE+00 TC101 .OOOE+00 RU103 .OOOE+00 RUOS .OOOE+00 RU106 .OOOE+O0 AG11M .OOOE+00 TE125H .OOOE+00 TE127M .OOOE+00 TE127 .OOOE+O0 TE12NM .OOOE+00 TE129 .OOOE+00 TE131M .OOOE+00 TE131 .OOOE+00 TE132 .OOOE+00 1130 .OOOE+00 1131 .OOOE+O0 1132 .OOOE+00 1133 .OOOE+00 1134 .OOOE+00 1135 .OOOE+00 CS134 6.190E-07 CS136 .OOOE+00 CS137 1.040E-05 CS138 .OOOE+00 BA139 .OOOE+00 BA14 .OOOE+00 BA141 .OOOE+00 BA142 .OOOE+00 LA140 .OOOE+00 LA142 .000E+00 CE141 .OOOE+00 CE143 .OOOE+00 CE144 .OOOE+00 PR143 .OOOE+O0 PR144 .OOOE+00 ND147 .OOOE+00 W187 .OOOE+00 NP233 .OOOE+O0 TOTAL 2.OO1E-02 Page 4

AQUADO.; (REG. GUIDE 1.109 - AQUATIC PATHWAY RADIATION EXPOSURES) NYPA / ENTECH ENGINEERING 2-Nov-05 PACE 4 IP2 SF? LEAK; 1Q RELEASE IN 6-HR TIDAL FLOW w/o FURTHER DILUTION: W/O WATER Path RADIONUCLIDE CONCENTRATIONS (pCi/liter) AT EXPOSURE SITE - AQUATIC FOOD INGESTION PATHWAY (RADIOACTIVE DECAY TIME (hrs) - .OOOE+001 NUCLI)E Concentr. NUCLIDE Concentr. NUCLIDE Concentr. NUCLIDE Conc-ntr.

H3 3.643E-O1 C14 .OOOE+00 NA24 .OOOE+00 P32 .OOOE+00 CR51 .OOOE+00 MN54 .OOOE+0O MN56 .OOOE+00 FE55 .OOOE+00 FE59 .OOOE+0O C058 .OOOE+00 C060 2.823E-06

  • N163 6.793E-06 **

N165 .OOOE+OO CU64 .OOOE+00 ZN65 .OOOE+00 2N69 .OOOE+00 BR83 .OOOE+00 BR84 .OOOE+00 BR85 .OOOE+00 RB86 .OOOE+00 RB88 .OOOE+OO RB89 .OOOE+00 SR89 .OOOE+00 SR90 8.943E-06 *-

SR91 .OOOE+00 SR92 .OOOE+O0 Y90 .OOOE+0O Y91M .OOOE+00 Y91 .OOOE+OO Y92 .OOOE+00 Y93 .OOOE+00 ZR95 .OOOE+00 ZR97 .OOOE+00 NB95 .OOOE+00 M099 .OOOE+00 TC99M .OOOE+00 TClOl .OOOE+00 RU103 .OOOE+OO RUOS .OOOE+00 RU206 .OOOE+0O AG113M .OOOE+O0 TE125M .OOOE+00 TE127M .OOOE+00 TE127 .OOOE+00 TE129M .OOOE+00 TE129 .OOOE+00 TE131M .OOOE+0O TE131 .OOOE+00 TE132 .OOOE+00 I130 .OOOE+00 1131 .OOOE+00 1132 .OOOE+OO 1133 .OOOE+00 I134 .OOOE+O0 1135 .OOOE+00 CS134 1.127E-05 **

CS13S .OOOE+00 CS137 1.894E-04 CS138 .OOOE+00 BA139 .OOOE+00 BA143 .OOOE+00 BA141 .OOOE+O0 BA142 .OOOE+00 LA140 .OOOE+00 LA142 .OOOE+00 CE141 .OOOE+O0 CE143 .OOOE+00 CE144 .OOOE+O0 PR143 .OOOE+00 PR144 .OOOE+O0 ND147 .OOOE+00 W187 .OOOE+00 NP23) .OOOE+00 TOTAL 3.645E-O1 AQUADO (REG. GUIDE 1.109 - AQUATIC PATHWAY RADIATION EXPOSURES) NYPA / ENTECH ENGINEERING 2-Nov-OS PAGE 5 IP2 SFP LEAK; 1Q RELEASE IN 6-HR TIDAL FLOW w/o FURTHER DILUTION: W/O WATER Path RADIi kTION EXPOSURE (mtra) DUE TO INGESTION OF CONTAMINATED FRESH WATER FISH (Exposure Interval (hrs)

  • 2.190E+031 NUCLID I BONE LIVER T. BODY THYROID KIDNEY LUNG GI-LLI AGE GR3UP: ADULT H3 .OOOE+00 1.807E-07 1.807E-07 1.807E-07 1.807E-07 1.807E-07 1.807E-07 C060 .OOOE+00 1.586E-09 3.498E-09 .OOOE+0O .OOOE+00 .OOOE+O0 2.979E-08 N163 4.637E-07 3.213E-08 1.555E-08 .OOOE+0O .OOOE+00 .OOOE+00 6.705E-09 SR90 1.068E-OS .OOOE+00 2.620E-06 .OOOE+00 .OOOE+00 .OOOE+OO 3.085E-07 CS134 8.246E-07 1.962E-06 1.604E-06 .OOOE+00 6.351E-07 2.10SE-07 3.434E-08 CS137 1.775E-05 2.428E-05 l.590E-0S .OOOE+00 8.242E-06 2.740E-06 4.700E-07 TOTAL 2.972E-05 2.646E-05 2.033E-05 1.807E-07 9.058E-06 3.131E-06 1.030E-06 AGE GR3UP: TEENAGER N3 .OOOE+00 1.390E-07 1.390E-07 1.390E-07 1.390E-07 1.390E-07 1.390E-07 C060 .OOOE+00 1.587E-09 3.574E-09 .000E+00 .OOOE+00 .OOOE+00 2.066E-08 NS 63 4.810E-07 3.397E-08 1.630E-08 .000+00 .OOOE+00 .OOOE+00 5.408E-09 SR90 8.907E-06 .000E+00 2.200E-06 .OOOE+00 .OOOE+00 .OOOE+00 2.500E-07 CS134 8.455E-07 l.990E-06 9.233E-07 .OOOE+00 6.323E-07 2.414E-07 2.475E-08 CS137 1.901E-05 2.529E-05 8.808E-06 .000E+00 8.605E-06 3.343E-06 3.598E-07 TOTAL 2.924E-05 2.745E-OS 1.209E-05 1.390E-07 9.376E-06 3.724E-06 7.997E-07 AGE GR)UP: ClHSILD H3 .OOOE+OO 1.148E-07 1.148E-07 1.148E-07 1.148E-07 1.148E-07 1.148E-07 C060 .OOOE+O0 1.288E-09 3.798E-09 .OOOE+00 .OOOE+O0 .OOOE+00 7.134E-09 NI63 6.305E-07 3.375E-08 2.14SE-08 .OOOE+00 .OOOE+00 .OOOE+00 2.273E-09 SR90 7.867E-06 .OOOE+00 1.995E-06 .OOOE+00 .OOOE+O0 .OOOE+00 1.060E-07 CS134 1.019E-06 1.673E-06 3.529E-07 .OOOE+00 5.184E-07 1.860E-07 9.017E-09 CS137 2.393E-OS 2.291E-05 3.381E-06 .OOOE+00 7.465E-06 2.686E-06 1.435E-07 TOTAL 3.345E-05 2.473E-OS 5.869E-06 1.148E-07 8.099E-06 2.987E-06 3.827E-07 Page 5

AQUADCS (REG. GUIDE 1.109 - AQUATIC PATHWAYRADIATION EXPOSURES) NYPA / ENTECH ENGINEERING 2-Nov-OS PAGE 6 IP2 SEP LEAK; 1Q RELEASE IN 6-NR TIDAL FLOWW/o FURTHER DILUTION: W/O WATER Path RADIATION EXPOSURE (mrxun) DUE TO INGESTION OF CONTAMINATED FRESH WATER FISH (Exposure interval (hrs) - 2.190E+031 NUCLIrE BONE LIVER T. BODY THYROID KIDNEY LUNG GI-LLI AGE GFOUP: INE'ANT H3 .OOOE+00 .OOOE+00 .OOOE+00 .OOOE+00 .OOOE+00 .OOOE+00 .OOOE+00 C060 .OOOE+00 .OOOE+00 .OOOE+00 .OOOE+00 .OOOE+00 .OOOE+00 .OOOE+00 NI63 .OOOE+00 .OOOE+00 .OOOE+00 .OOOE+00 .OOOE+00 .OOOE+00 .OOOE+00 SR90 .OOOE+00 .OOOE+00 .OOOE+00 .OOOE+00 .OOOE+00 .OOOE+00 .OOOE+00 CS134 .OOOE+00 .OOOE+00 .OOOE+00 .OOOE+00 .OOOE+00 .OOOE+00 .OOOE+00 CS137 .OOOE+00 .OOOE+00 .OOOE+00 .OOOE+00 .OOOE+00 .OOOE+00 .OOOE+00 TOTAL .OOOE+00 .OOOE+00 .OOOE+00 .OOOE+00 .OOOE+0O .OOOE+00 .OOOE+00 AQUADCS (REG. GUIDE 1.109 - AQUATIC PATHWAYRADIATION EXPOSURES) NYPA / ENTECH ENGINEERING 2-Nov-05 PAGE 7 IP2 SEP LEAK: 1Q RELEASE IN 6-NR TIDAL FLOWw/o FURTHER DILUTION: W/O WATER Path RADIATION EXPOSURE (mrem) DUE TO INGESTION OF CONTAMINATED FRESH WATER INVERTEBRATE

[Exposure interval (hrs) - 2.190E+031 NUCLIrE DONE LIVER T. BODY THYROID KIDNEY LUNG GI-LLI AGE GROUP: ADI ULT N3 .OOOE+00 .OOOE+00 .OOOE+00 .OOOE+00 .OOOE+00 .OOOE+00 .OOOE+00 C060 .OOOE+00 .OOOE+00 .OOOE+00 . IOOOE+00'- lxF.000E+00 .OOOE+00 .OOOE+00 NI 63 .OOOE+00 .OOOE+00 .OOOE+00 .OOOE+00 .OOOE+00 .OOOE+00 OOOE+00 SR90 .OOOE+00 .OOOE+00 .OOOE+00 .OOOE+00 .OOOE+00 .OOOE+00 OOOE+00 CS134 .OOOE+00 .OOOE+00 .OOOE+00 .OOOE+00 .OOOE+00 .OOOE+00 .OOOE+00 CS137 .OOOE+00 .OOOE+00 .OOOE+00 .OOOE+00 .OOOE+00 .OOOE+00 .OOOE+00 TOTAL .OOOE+00 .OOOE+00 .OOOE+00 .OOOE+00 .OOOE+00 .OOOE+00 .OOOE+00 AGE GROUP: TEI ENAGER H3 .OOOE+00 OOOE+00 .OOOE+00 OOOE+00 OOOE+00 OOOE+00 .OOOE+00 C060 .OOOE+00 .OOOE+00 .OOOE+00 .OOOE+00 .OOOE+00 .OOOE+00 .OOOE+00 NI 63 .OOOE+00 .OOOE+00 .OOOE+00 .OOOE+00 .OOOE+00 .OOOE+00 .OOOE+00 SR90 .OOOE+00 .OOOE+00 .OOOE+00 .OOOE+00 .OOOE+00 .OOOE+00 .OOOE+00 CS134 .OOOE+00 .OOOE+00 .OOOE+00 .OOOE+00 .OOOE+00 .OOOE+00 .OOOE+00 CS137 .OOOE+00 .OOOE+00 .OOOE+00 .OOOE+00 .OOOE+00 .OOOE+00 .OOOE+00 TOTAL .OOOE+00 .OOOE+00 .OOOE+00 .OOOE+00 .OOOE+00 .OOOE+00 .OOOE+00 AGE GROUP: CHI ILD H3 .OOOE+00 .OOOE+00 .OOOE+00 .OOOE+00 .OOOE+00 .OOOE+00 .OOOE+00 C060 .OOOE+00 .OOOE+00 .OOOE+00 .OOOE+00 .OOOE+00 .OOOE+00 .OOOE+00 NI 63 .OOOE+00 .OOOE+00 .OOOE+00 .OOOE+00 .OOOE+00 .OOOE+00 .OOOE+00 SR90 .OOOE+00 .OOOE+00 .OOOE+00 .OOOE+00 .OOOE+00 .OOOE+00 .OOOE+00 CS134 .OOOE+00 .OOOE+00 .OOOE+00 .OOOE+00 .OOOE+00 .OOOE+00 .OOOE+00 CS137 .OOO+00 .0001+00 .0001+00 .OOO0+00 .OOO0+00 .0001+00 .OOO0+00 TOTAL .OOOE+00 .OOOE+00 .OOOE+00 .OOOE+00 .OOOE+00 .000E+00 .OOOE+00 Page 6

AQUADOS (REG. GUIDE 1.109 - AQUATIC PATHWAY RADIATION EXPOSURES) NYPA / ENTECH ENGINEERING 2-Nov-05 PACE 8 IP2 SFP LEAK: IQ RELEASE IN 6-HR TIDAL FLOW w/o FURTHER DILUTION; W/O WATER Path RADIATION EXPOSURE (mrem) DUE TO INGESTION OF CONTAMINATED FRESH WATER INVERTEBRATE (Exposure interval (hrs) . 2.190E+03]

NUCLIDE BONE LIVER T. BODY THYROID KIDNEY LUNG GI-LLI AGE GROUP: INFANT H3 .000E+00 .OOOE+0O .OOOE+00 .OOOE+00 .OOOE+00 .OOOE+00 .OOOE+00 C060 .OOOE+oo .OOOE+OO .OOOE+Oo .OOOE+OO .OOOE+oo .OOOE+OO .OOOE+oo N163 .OOOE+OO .OOOE+OO .OOOE+O0 .OOOE+OO .OOOE+OO .OOOE+OO .OOOE+OO SR90 .OOOE+O0 .OOOE+OO .OOOE+OO .OOOE+OO .OOOE+OO .OOOE+OO .OOOE+OO CS134 .OOOE+OO .OOOE+OO .OOOE+OO .OOOE+oO .OOOE+OO .OOOE+OO .OOOE+OO CS137 .OOOE+oo .OOOE+OO .OOOE+Oo .OOOE+OO .OOOE+Oo .OOOE+oo .OOOE+oo TOTAL .OOOE+OO .OOOE+OO .OOOE+o0 .OOOE+OO .OOOE+OO .OOOE+OO .OOOE+oo AQUADCS (REQ. GUIDE 1.109 - AQUATIC PATHWAY RADIATION EXPOSURES) NYPA / ENTECH ENGINEERING 2-Nov-05 PAGE 9 IP2 SFP LEA;: IQ RELEASE IN 6-HR TIDAL FLOW w/o FURTHER DILUTION; W/O WATER Path RADII ATION EXPOSURE (mxem) DUE TO INGESTION OF CONTAMINATED SALT WATER FISH

[Exposure interval (hrs) - 2.190E+03)

NUCLIDE BONE LIVER T. BODY THYROID KIDNEY LUNG GI -LLI AGE GROUP: ADIULT N3 .OOOE+00 .OOOE+00 .000E+00 .OOOE+00 .OOOE-I00 .OOOE-00 OOO0E+00 C060 .OOOE+00 .OOOE+00 .OOOE+00 OO0OE+00~: 7.!'000E+G00 \..OOOE+00 OOO0E400 N163 .OOOE+00 .OOOE+00 OOO0E+00 .OOOE+00 1 000 .OOOE-I00 OOOE+00 SR90 .OOOE+00 .OOOE+00 .OOOE+00 .OOOE+00 .OOOE+00 .000E+00 OOO0E+00 CS134 .OOOE+00 .OOOE+00 O0OOE+00 .OOOE+00 .OOOE+00 .OOOE+00 .000E+00 CS137 .OOOE+00 OOO0E+00 .OOOE+00 .OOOE+00 .OOOE+00 .OOOE-f00 OOOE+00 TOTAL .OOOE+00 OOO0E+00 .OOOE+00 .OOOE+00 .OOOE+00 .OOOE+00 .OOOE+00 AGE GROUP: TEE.NAGER H3 .OOOE+00 .OOOE+00 .OOOE+00 .OOOE+00 .OOOE+00 .OOOE+00 .OOOE+00 C060 .OOOE+00 .OOOE+00 .OOOE+00 .OOOE+00 .OOOE+00 .OOOE+0O .OOOE+00 Nr63 .OOOE+0O .OOOE+O0 .OOOE+00 .OOOE+00 .OOOE+00 .OOOE+00 .OOOE+00 SR90 .OOOE+00 .OOOE+OO .OOOE+00 .OOOE+00 .OOOE+00 .OOOE+0O .OOOE+00 CS134 .OOOE+00 .OOOE+00 .OOOE+00 .OOOE+O0 .OOOE+00 .OOOE+0O .OOOE+OD CS137 .OOOE+00 .OOOE+00 .OOOE+00 .OOOE+O0 .OOOE+00 .OOOE+00 .OOOE+00 TOTAL .OOOE+0O .OOOE+00 .OOOE+00 .OOOE+O0 .000E+00 .OOOE+00 .OOOE+O0 AGE GROUP: CHILD H3 .OOOE+0o .OOOE+00 .OOOE+oo .OOOE+OO .O00E+OO .OOOE+0O .OOOE+OO C060 .OOOE+00 .OOOE+00 .OOOE+00 .OOOE+

00EOOO OOOE+00 .OOOE+O0 N163 .OOOE+00 .OOOE+00 .OOOE+OO .OOOE+OO .O 0E+O0 .OOOE+00 .OOOE+O0 SR90 .OOOE+00 .OOOE+0O .OOOE+0O .OOOE+00 .OOOE+O0 .OOOE+00 .OOOE+OO CS134 .OOOE+00 .OOOE+00 .OOOE+0O .OOOE+00 .OOOE+0o .OOOE+00 .OOOE+00 CS137 .OOOE+OO .OOOE+OO .OOOE+OO .OOOE+OO .OOOE+OO .OOOE+OO .OOOE+OO TOTAL .OOOE+00 .OOOE+00 .OOOE+0o .OOOE+0O .OOOE+00 .OOOE+00 .OOOE+O0 Page 7

AQUAD03 (REG. GUIDE 1.109 - AQUATIC PATHWAY RADIATION EXPOSURES) NYPA / ENTECH ENGINEERING 2-Nov-05 PACE 10 IP2 SF? LEAK; 1Q RELEASE IN 6-HR TIDAL FLOW w/o FURTHER DILUTION; W/O WATER Path RADIATION EXPOSURE (mrom) DUE TO INGESTION OF CONTAMINATED SALT WATER FISH

[Exposure interval (hrs) . 2.190E+031 NUCLIDE BONE LIVER T. BODY THYROID KIDNEY LUNG GI-LLI AGE GR3UP: INF FANT H3 .OOOE+OO .OOOE+OO .OOOE+OO .OOOE+OO .OOOEt*OO .OOOE+OO .OOOE+OO C060 .OOOE+OO .OOOE+OO .OOOE+OO .OOOE+OO .OOOE+OO .OOOE+0O .OOOE+OO N163 .OOOE+OO .OOOE+OO .OOOE+OO .OOOE+OO .OOOE+O0 .OOOE+0O .OOOE+OO SR90 .OOOE+OO .OOOE+OO .OOOE+O0 .OOOE+OO .OOOE+00 .OOOE+OO .OOOE+O0

.OOOE+OO .OOOE+O0 .OOOE+00 .OOOE+OO .OOOE+OO .OOOE+OO .OOOE+OO CS134 CS137 .OOOE+OO .OOOE+OO .OOOE+OO .OOOE+OO .OOOE+OO .OOOE+OO .OOOE+OO TOTAL .OOOE+O0 .OOOE+OO .OOOE+OO .OOOE+OO .OOOE+OO .OOOE+OO .OOOE+OO AQUADO; (REG. GUIDE 1.109 - AQUATIC PATNWAY RADIATION EXPOSURES) NYPA / ENTECH ENGINEERING 2-Nov-OS PAGE 11 IP2 SFP LEAK; 1Q RELEASE IN 6-HR TIDAL FLOW W/o FURTHER DILUTION; W/O WATER Path RADIATION EXPOSURE (mra.) DUE TO INGESTION OF CONTAMINATED SALT WATER INVERTEBRATE

[Exposure interval (hrs) . 2.190E+031 NUCLID I BONE LIVER T. BODY THYROID KIDNEY LUNG GI-LLI AGE GR3UP: ADULT R3 .OOOE+OO 4.446E-08 4.446E-08 4.446E-08 4.446E-08.Atr4:446E-O8 4.446E-08 C060 .OOOE+OO 7.552E-09 1.666E-08 .OOOE+OO .OOOE+O0, I.- ~-OOE+00 1.419E-07 NI63 2.760E-07 1.913E-08 9.256E-09 .OOOE+OO .OOOE+OO .OOOE+OO 3.991E-09 SR90 1.695E-06 .OOOE+OO 4.158E-07 .OOOE+OO .OOOE+OO .OOOE+OO 4.896E-08 CS134 1.963E-07 4.672E-07 3.820E-07 .OOOE+OO 1.512E-07 5.019E-08 8.176E-09 CS137 4.227E-06 5.781E-06 3.787E-06 .OOOE+OO 1.962E-06 6.523E-07 1.119E-07 TOTAL 6.394E-06 6.319E-06 4.655E-06 4.446E-08 2.158E-06 7.470E-07 3.594E-07 AGE GR3UP: TrENAGER N3 .OOOE+O0 3.411E-08 3.411E-08 3.411E-08 3.411E-08 3.411E-08 3.411E-08 0060 .OOOE+OO 7.536E-09 1.698E-08 .OOOE+OO .OOOE+OO .OOOE+OO 9.816E-08 N163 2.856E-07 2.017E-08 9.631E-09 .OOOE+00 .OOOE+O0 .OOOE+OO 3.211E-09 SR90 1.410E-06 .OOOE+OO 3.483E-07 .OOOE+00 EOOOE+00 .OOE+OO 3.959E-08 CS134 2.008E-07 4.726E-07 2.193E-07 .OOOE+OO 1.502E-07 5.734E-08 5.878E-09 CS137 4.514E-06 6.006E-06 2.092E-06 .OOOE+00 2.044E-06 7.941E-07 8.545E-08 TOTAL 6.411E-06 6.540E-06 2.720E-06 3.411E-08 2.228E-06 8.855E-07 2.664E-07 AGE GR3UP: C1:NILD N3 .OOOE+OO 2.923E-08 2.923E-08 2.923E-08 2.923E-08 2.923E-08 2.923E-08 C060 .OOOE+OO 6.347E-09 1.872E-08 .OOOE+00 .OOOE+OO .OOOE+0O 3.515E-08 NI63 3.883E-07 2.079E-08 1.321E-08 .OOOE+0O .OOOE+00 .OOOE+00 1.400E-09 SR90 1.292E-06 .000+00 3.276E-07 .OOOE+OO .OOOE+00 .OOOE+00 1.741E-08 CS134 2.5IlE-07 4.121E-07 8.693E-08 .OOOE+00 1.277E-07 4.583E-08 2.222E-09 CS137 5.897E-06 5.644E-06 8.331E-07 .000E+00 1.839E-06 6.618E-07 3.534E-08 TOTAL 7.828E-06 6.113E-06 1.309E-06 2.923E-08 1.996E-06 7.368E-07 1.208E-07 Page 8

AQUAD03 (REG. GUIDE 1.109 - AQUATIC PATHWAY RADIATION EXPOSURES) NYPA / ENTECH ENGINEERING 2-Nov-05 PACE 12 IP2 SFP LEAK; 1Q RELEASE IN 6-HR TIDAL FLOW w/o FURTHER DILUTION; W/O WATER Path RADIATION EXPOSURE (mrem) DUE TO INGESTION OF CONTAMINATED SALT WATER INVERTEBRATE (Exposure interval (hrs) - 2.190E+03]

NUCLIDE BOl ;NE LIVER T. BODY THYROID KIDNEY LUNG GI-LLI AGE GR3UP: INFANT H3 .00C)E+OO .OOOE+OO .OOOE+OO .OOOE+OO .OOOE+OO .OOOE+OO .OOOE+OO C060 .00C )E+OO .OOOE+OO .OOOE+OO .OOOE+OO .OOOE+OO .OOOE+OO .OOOE+OO N163 .00c)E+OO .OOOE+OO .OOOE+OO .OOOE+OO .OOOE+OO .OOOE+OO .OOOE+OO SR90 .00( )E+OO .OOOE+OO .OOOE+OO .OOOE+OO .OOOE+OO .OOOE+OO .OOOE+OO CS134 .00c)E+OO .OOOE+OO .OOOE+OO .OOOE+OO .OOOE+OO .OOOE+OO .OOOE+OO CS137 .0OC)E+OO .OOOE+O .OOOE+0O .OOOE+00 .OOOE+O0 .OOOE+00 .OOOE+00 TOTAL .0OCIE+OO .OOOE+OO .OOOE+OO .OOOE+OO .OOOE+OO .OOOE+OO .OOOE+OO AQUADOE (REG. GUIDE 1.109 - AQUATIC PATHWAY RADIATION EXPOSURES) NYPA / ENTECH ENGINEERING 2-Nov-OS PAGE 13 IP2 SF? LEAK; 1Q RELEASE IN 6-HR TIDAL FLO? w/o FURTHER DILUTION; W/O WATER Path

SUMMARY

OF RADIATION EXPOSURES (mrwm)

EICPOSURE PATNWAt TINE (hrs) BONE LIVER T. BODY THYROID KIDNEY LUNG GI-LLI SKIN AGE GR)UP: ADULT FRESI WATER FISN 2.19E+03 2.97E-05 2.65E-O5 2.03E-O5 1.BIE-O7.-.t9.O6E-06--4t'Sl3E-06 1.03E-06 FRES4 WATER INVERT. 2.19E+03 .OOE+OO .OOE+0O .OOE+OO .OOE+OO "'.OOE+OO.t'.'OOE+OO .OOE+OO SALT WATER FISN 2.19E+03 .OOE+OO .OOE+OO .OOE+OO .OOE+OO .OOE+OO - .OOE+OO .OOE+OO SALT WATER INVERT. 2.19E+03 6.39E-06 6.32E-06 4.65E-06 4.45E-08 2.16E-06 7.47E-07 3.59E-07 DRINCING WATER .OOE+OO .OOE+OO .OOE+O0 .OOE+OO .OOE+OO .OOE+OO .OOE+OO .OOE+OO SHORELINE DEPOSITS .OOE+OO .OOE+OO .OOE+OO .OOE+OO .OOE+OO .OOE+OO .OOE+OO .OOE+OO .OOE+OO TOTAL (ALL PATHS) 3.61E-OS 3.28E-05 2.50E-05 2.25E-07 1.12E-05 3.88E-06 1.39E-06 .OOE+OO AGE GR9UP: TEENAGER FRESI1 WATER FISH 2.19E+03 2.92E-05 2.75E-05 1.21E-05 1.39E-07 9.38E-06 3.72E-06 8.00E-07 FRESi WATER INVERT. 2.19E+03 .OOE+OO .OOE+OO .OOE+OO .OOE+OO .OOE+OO .OOE+OO .OOE+OO SALT WATER FISH 2.19E+03 .OOE+OO .OOE+OO .OOE+O0 .OOE+OO .OOE+OO .OOE+OO .OOE+OO SALT WATER INVERT. 2.19E+03 6.41E-06 6.54E-06 2.72E-06 3.41E-08 2.23E-06 8.86E-07 2.66E-07 DRINCING WATER .OOE+OO .OOE+OO .OOE+OO .OOE+OO .OOE+OO .OOE+OO .OOE+OO .OOE+OO SHORELINE DEPOSITS .OOE+OO .OOE+OO .OOE+OO .OOE+OO .OOE+OO .OOE+OO .OOE+OO .OOE+OO .OOE+OO TOTAL (ALL PATHS) 3.57E-05 3.40E-05 1.48E-05 1.73E-07 1.16E-05 4.61E-06 1.07E-06 .OOE+OO AGE GR)UP: CHILD FRESi WATER FISH 2.19E+03 3.35E-05 2.47E-05 5.87E-06 1.15E-07 8.10E-06 2.99E-06 3.83E-07 FRES i WATER INVERT. 2.19E+03 .OOE+OO .OOE+OO .OOE+OO .OOE+OO .OOE+OO .OOE+OO .OOE+OO SALT WATER FISH 2.19E+03 .OOE+OO .OOE+OO .OOE+OO .OOE+OO .OOE+OO .OOE+OO .OOE+OO SALT WATER INVERT. 2.19E+03 7.83E-06 6.11E-06 1.31E-06 2.92E-08 2.OOE-06 7.37E-07 1.21E-07 DRINCING WATER .OOE+OO .OOE+OO .OOE+OO .OOE+OO .OOE+OO .OOE+OO .OOE+OO .OOE+OO SNORELINE DEPOSITS .OOE+00 .OOE+0O .OOE+00 .OOE+00 .OOE+00 .OOE+00 .OOE+00 .OOE+0O .OOE+00 TOTAL (ALL PATHS) 4.13E-05 3.08E-0S 7.18E-06 1.44E-07 1.0E-05 3.72E-06 5.03E-01 .OOE+00 AGE GR)UP: INFANT FRES:( WATER FISH 2.19E+03 .OOE+OO .OOE+OO .OOE+OO .OOE+OO .OOE+OO .OOE+OO .OOE+OO FRES3 WATER INVERT. 2.19E+03 .OOE+OO .OOE+OO .OOE+OO .OOE+OO .OOE+O0 .OOE+OO .OOE+OO SALT WATER FISH 2.19E+03 .OOE+OO .OOE+OO .OOE+OO .OOE+OO .OOE+OO .OOE+OO .OOE+OO SALT WATER INVERT. 2.19E+03 .OOE+OO .OOE+OO .OOE+OO .OOE+OO .OOE+OO .OOE+OO .OOE+OO DRINCING WATER .OOE+OO .OOE+OO .OOE+OO .OOE+OO .OO+00 .OOE+OO .OOE+OO .OOE+OO SHORELINE DEPOSITS .OOE+OO .OOE+OO .OOE+OO .OOE+OO .OOE+OO .OOE+OO .OOE+OO .OOE+OO .OOE+OO TOTAL (ALL PATHS) .OOE+OO .OOE+OO .OOE+OO .OOE+OO .OOE+OO .OOE+OO .OOE+OO .OOE+OO

' . . .. END OF ANALYSIS . . . ..

Page 9

AQUADOS CASE 2 (Includes the water-drinking pathway)

AQUADO.; (REG. GUIDE 1.109 - AQUATIC PATHWAY RADIATION EXPOSURES) NYPA / ENTECH ENGINEERING 2-Nov-05 PAGE 1 INPUT DATA LISTING - FILE 4 LINE 1 2 3 4 5 6 7 8 SEQ. 12345678901234567890123456789012345678901234567890123456789012345678901234567890 1 IP2 SFP LEAK; 1Q RELEASE IN 6-HR TIDAL FLOW w/o FURTHER DILUTION: W/WATER Path 2 1.0 6.0 3.934E-04 3.934E-04 0.0 3 2190.0 2190.0 2190.0 0.0 4 0.0 0.0 0.0 0.0 0.0 5 H3 2.OE-02 C060 1.55E-07 N163 3.73E-07 SR90 4.91E-07 6 CS134 6.19E-07 CS137 1.04E-05 AQUADOS (REG. GUIDE 1.109 - AQUATIC PATHWAY RADIATION EXPOSURES) NYPA / ENTECH ENGINEERING 2-Nov-05 PAGE 2 IP2 SFP LEAK; 1Q RELEASE IN 6-HR TIDAL FLOW w/o FURTHER DILUTION; W/WATER Path DISPERSION FACTOR - FISH INGESTION PATHWAY (sec/m3) 3. 934E-04 DISPERSION FACTOR - DRINKING WATER PATHWAY (sec/m3) 3. 934E-04 DISPER;ION FACTOR - SHORELINE DEPOSITS (sec/m3) .OOOE+00 TRANSIr/BIOACCUM4ULATION DECAY TIME (FISH INGESTION, hrs) .OOOE+00 TRANSIT TIME (DRINKING WATER PATHWAY, Irs) .OOOE+00 TRANSIr TIME (SHORELINE DEPOSITS, hrs) .OOOE+00 SHORELINE DEPOSIT PRE-EXPOSURE ACCUMULATION TIME (yrs) .OOOE+00 SHORELINE WIDTH FACTOR .OOOE+00 RELEASE DURATION (hrs) 6. 00OE+00 I4C0Fji::1t!5 4-, -. .. :- } .,.,! IC .. I. t.:

. e .S++^

I,:-: EXPOSURE INTERVALS (hrs)

FRESH WATER AQUATIC FOODS 2. 190E+03 SALr WATER AQUATIC FOODS 2. 190E+03 DRI4KING WATER 2.190E+03 SHORELINE DEPOSITS .OOOE+00 AGE-SPECIFIC USAGE FACTORS PATHSAY ADULT TEENAGER CHILD INFANT FRUITS £ VEGET. (kg/yr) 520.0 630.0 520.0 .0 LEAFY VEGETABLES (kg/yr) 64.0 42.0 26.0 .0 MILK (liters/yr) 310.0 400.0 330.0 330.0 NEAT AND POULTRY (kg/yr) 110.0 65.0 41.0 .0 FISH (kg/yr) 21.0 16.0 6.9 .0 OTHER SEAFOOD (kg/yr) 5.0 3.8 2.7 .0 DRINKING WATER (liters/yr) 730.0 510.0 510.0 330.0 SHORELINE RECREAT. (hr/yr) 12.0 67.0 14.0 .0 INHALATION (m3/yr) 6000.0 8000.0 3700.0 1400.0 AQUADOS (REG. GUIDE 1.109 - AQUATIC PATHWAY RADIATION EXPOSURES) NYPA / ENTECH ENGINEERING 2-Nov-05 PAGE 3 IP2 SFP LEAK; 1Q RELEASE IN 6-HR TIDAL FLOW w/o FURTHER DILUTION; W/WATER Path RADIONuCLIDE RELEASE INVENTORY NUCLIDE Rol. (Ci) NUCLIDE Rol. (Ci) NUCLIDE Rol. (Ci) NUCLIDE Reo. (Ci)

N3 2.000E-02 ** C14 .000E+00 NA24 . OOOE+00 P32 .000E+00 CR51 .OOOE+00 MN54 .OOOE+00 MN56 .OOOE+00 FE55 .OOOE+00 FES9 .OOOE+00 C058 .OOOE+00 C060 1.550E-07 NI 63 3.730E-07 *-

NI65 .OOOE+00 CU64 .OOOE+00 ZN65 .OOOE+00 ZN69 .OOOE+00 BR83 .OOOE+00 BR84 .OOOE+00 BR8S .OOOE+00 RB86 .OOOE+00 RB88 .OOOE+00 RB99 .OOOE+00 SR89 .OOOE+00 SR90 4.910E-07 SR91 .OOOE+00 SR92 .OOOE+00 Y90 .OOOE+00 Y91M .OOOE+00 Y91 .OOOE+00 Y92 .OOOE+00 Y93 .OOOE+00 ZR95 .OOOE+00 ZR97 .OOOE+00 NB95 .OOOE+00 MO99 .OOOE+00 TC99M .OOOE+00 TC101 .OOOE+00 RU103 .OOOE+00 RU105 .000E+00 RU106 .OOOE+00 AGllOM .OOOE+00 TE125M .OOOE+00 TE127M .OOOE+00 TE127 .OOOE+00 TE129M .OOOE+00 TE129 .OOOE+00 TE131M .OOOE+00 TE131 .OOOE+00 TE132 .OOOE+00 1130 .OOOE+00 1131 .OOOE+00 1132 .000E+00 1133 .OOOE+00 1134 .OOOE+00 1135 .OOOE+00 CS134 6.190E-07 **

CS136 .OOOE+00 CS137 1.040E-05 ** CS138 .OOOE+00 BA139 .OOOE+00 BA140 .OOOE+00 BA141 .OOOE+00 BA142 .OOOE+00 LA140 .OOOE+00 LA142 .000E+00 CE141 .OOOE+00 CE143 .OOOE+00 CE144 .OOOE+00 PR143 .000E+00 PR144 .OOOE+00 ND147 .000E+00 W187 .000E+00 NP239 .OOOE+00 TOTAL 2.001E-02 Page I0

AQUADCS (REG. GUIDE 1.109 - AQUATIC PATHWAY RADIATION EXPOSURES) NYPA / ENTECH ENGINEERING 2-Nov-05 PAGE 4 IP2 SEP LEAK: 10 RELEASE IN 6-HR TIDAL FLOW w/o FURTHER DILUTION; W/WATER Path RADIONUCLIDE CONCENTRATIONS (pCi/liter) AT EXPOSURE SITE - AQUATIC FOOD INGESTION PATHWAY

[RADIOACTIVE DECAY TIME (brs) - ,OOOE+OO]

NUCLIDE Conc-ntr. NUCLIDE Concentr. NUCLIDE Concentr. NUCLIDE Concentr.

N3 3.643E-O1 ^- C14 .OOOE+OO NA24 .OOOE+OO P32 .OOOE+00 CR5S .OOOE+OO MN54 .OOOE+00 HN56 .OOOE+OO FESS .OOOE+OO FESS .OOOE+OO C058 .OOOE+00 C060 2.823E-06 N163 6.793E-06 **

NI6! .OOOE+OO CU64 .OOOE+OO ZN65 .OOOE+OO ZN69 .OOOE+00 BR83 .OOOE+OO DR84 .OOOE+00 BR85 .OOOE+OO RB86 .OOOE+00 R18E .OOOE+OO RB89 .OOOE+00 SR89 .OOOE+OO SR90 8.943E-06 **

SR91 .OOOE+OO SR92 .OOOE+00 Y90 .OOOE+00 Y91M .OOOE+00 Y91 .OOOE+OO Y92 .OOOE+OO Y93 .OOOE+00 ZR9S .OOOE+00 ZR9l .OOOE+OO NB95 .OOOE+00 999 .OOOE+O0 TC99M .OOOE+00 TC1C1 .OOOE+OO RU103 .OOOE+00 RU105 .OOOE+00 RU106 .OOOE+00 AG12OM .OOOE+0O TE125M .OOOE+00 TE127M .OOOE+O0 TE127 .OOOE+00 TE129M .OOOE+00 TE129 .OOOE+0O TE131H .OOOE+00 TE131 .OOOE+00 TE13 2 .OOOE+OO 1130 .OOOE+O0 1131 .OOOE+00 1132 .OOOE+O0 1133 .OOOE+OO 1134 .OOOE+0O 1135 .OOOE+00 CS134 1.127E-05 CS13 6 .OOOE+0O CS137 1.894E-04 ^^ CS138 .OOOE+00 BA139 .OOOE+00 BA140 .OOOE+0O BA141 .OOOE+OO BA142 .OOOE+00 LA140 .OOOE+00 LA14 2 .OOOE+00 CE141 .OOOE+0O CE143 .OOOE+O0 CE144 .OOOE+00 PR143 .OOOE+O0 PR144 .OOOE+0O ND147 .OOOE+00 WIB7 .OOOE+00 NP239 .OOOE+0O TOTAL 3. 645E-O1

-No. -O.. PAGE AQUADCS (REG. GUIDE 1.109 - AQUATIC PATHWAY RADIATION EXPOSURES) NYPA / ENTECH ENGINEERING 2-Nor-OS PAGE 5 IP2 SEP LEAK., 1Q RELEASE IN 6-HR TIDAL FLOW w/o FURTHER DILUTION; W/WATER Path RADIATION EXPOSURE (mrem) DUE TO INGESTION OF CONTAMINATED FRESH WATER FISH

[Exposure interval (hra) . 2.190E+031 NUCLIrE DONE LIVER T. BODY THYROID KIDNEY LUNG GI-LLI AGE GFOUP: Aa )ULT H3 .OOOE+O0 1.807E-07 1.807E-07 1.807E-07 1.807E-07 1.807E-07 1.807E-07 C060 .000E+00 1.586E-09 3.498E-09 .OOOE+00 .OOOE+00 .OOOE+00 2.979E-08 NI63 4.637E-07 3.213E-08 1.555E-08 .OOOE+00 .000E+00 .OOOE+00 6.705E-09 SR90 1.068E-05 .OOOE+00 2.620E-06 .OOOE+OO .OOOE+00 .OOOE+00 3.085E-07 CS134 8.246E-07 1.962E-06 1.604E-06 .OOOE+OO 6.351E-07 2.108E-07 3.434E-08 CS137 1.775E-05 2.428E-05 1.590E-05 .OOOE+00 8.242E-06 2.740E-06 4.700E-07 TOTAL 2.972E-05 2.646E-05 2.033E-05 1.807E-07 9.058E-06 3.131E-06 1.030E-06 AGE GPOUP: TI EENAGER H3 .OOOE+00 1.390E-07 1.390E-07 1.390E-07 1.390E-07 1.390E-07 1.390E-07 C060 .OOOE+00 1.587E-09 3.574E-09 .OOOE+00 .OOOE+00 .OOOE+00 2.066E-08 N163 4.B1OE-07 3.397E-08 1.630E-08 .OOOE+OO .OOOE+00 .OOOE+o0 5.40SE-09 SR9O 8.907E-06 .OOOE+00 2.200E-06 .OOOE+00 .OOOE+00 .OOOE+00 2.500E-07 CS134 8.455E-07 l.990E-06 9.233E-07 .OOOE+00 6.323E-07 2.414E-07 2.475E-08 CS137 1.901E-05 2.529E-05 8.808E-06 .OOOE+00 8.605E-06 3.343E-06 3.598E-07 TOTAL 2.924E-05 2.745E-05 1.209E-05 1.390E-07 9.376E-06 3.724E-06 7.997E-07 AGE GFOUP: C:NILD H3 .OOOE+00 1.148E-07 1.148E-07 1.148E-07 1.148E-07 1.148E-07 1.148E-07 C060 .OOOE+00 1.288E-09 3.798E-09 .OOOE+O0 .OOOE+00 .OOOE+00 7.134E-09 NI 63 6.305E-07 3.375E-08 2.145E-08 .OOOE+00 .OOOE+00 .OOOE+00 2.273E-09 SR90 7.867E-06 .OOOE+00 1.995E-06 .OOOE+00 .OOOE+00 .OOOE+00 1.060E-07 CS134 1.019E-06 1.673E-06 3.529E-07 .OOOE+00 5.184E-07 1.860E-07 9.017E-09 CS137 2.393E-05 2.291E-05 3.381E-06 .OOOE+00 7.465E-06 2.686E-06 1.435E-07 TOTAL 3.345E-05 2.473E-05 5.869E-06 1.148E-07 8.099E-06 2.987E-06 3.827E-07 Page 11

AQUADOS (REG. GUIDE 1.109 - AQUATIC PATHWAY RADIATION EXPOSURES) NYPA / ENTECH ENGINEERING 2-Nov-OS PAGE 6 IP2 SlP LEAK; 10 RELEASE IN 6-HR TIDAL FLOW w/o FURTHER DILUTION; W/WATER Path RADIATION EXPOSURE (mr}s) DUE TO INGESTION OF CONTAMINATED FRESH WATER FISH (Exposure interval (hrs) = 2.190E+031 NUCLtlIE BONE LIVER T. BODY THYROID lIDNEY LUNG GI-LLr AGE GROUP: INI FANT N3 .OOOE+00 .OOOE+00 .OOOE+00 .OOOE+00 .OOOE+00 .OOOE+00 .OOOE+00 C060 .Do OE+00 .OOOE+00 .OOOE+00 .OOOE+00 .OOOE+00 .OOOE+00 OOO0E+00 NI 63 .OOOE+00 .OOOE+00 .OOOE+00 .OOOE+00 .OOOE+00 .OOOE+00 .OOOE+00 SR90 .OOOE+00 .OOOE+00 .OOOE+00 .OOOE+00 .OOOE+00 .OOOE+00 .OOOE+00 CS134 .OOOE+00 .OOOE+00 .OOOE+00 .000E+00 .OOOE+00 .OOOE+00 .OOOE+00 CS137 .OOOE+00 OOO0E+00 .OOOE+00 .OOOE+00 .OOOE+00 .OOOE+00 .OOOE+00 TOTAL .OOOE+00 .OOOE+00 .OOOE+00 .OOOE+00 .OOOE+00 .OOOE+00 .OOOE+00 AQUADCOS (REG. GUIDE 1.109 - AQUATIC PATHWAY RADIATION EXPOSURES) NYPA / ENTECH ENGINEERING 2-Nov-05 PAGE 7 IP2 Sl'P LEAX: 1Q RELEASE IN 6-HR TIDAL FLOW w/o FURTHER DILUTION; W/WATER Path RADIATION EXPOSURE (Imr-m) DUE TO INGESTION OF CONTAMINATED FRESH WATER INVERTEBRATE (Exposure interval (hrs) - 2.190E+031 NUCLIDE DONE LIVER T. BODY THYROID KIDNEY LUNG GI-LLI AGE Gl OUP: ADULT N3,  :  : .OOOE+00 .OOOE+00 .OOOE+00 .OOOE+00 .OOOE+00 .OOOE+00 .000E+00 C060 .OOOE+00 .OOOE+00 .OOOE+00 .OOOE+00 .OOOE+00 .OOOE+00 .OOOE+00 N163 .OOOE+00 .OOOE+00 .OOOE+00 .OOOE+00 .OOOE+00 .OOOE+00 .OOOE+00 SR90 .OOOE+00 .OOOE+00 .OOOE+00 .OOOE+00 .OOOE+00 .OOOE+00 .OOOE+00 CS134 .OOOE+00 .OOOE+00 .OOOE+00 .OOOE+00 .OOOE+00 .OOOE+00 .OOOE+00 CS137 .000E+00 .OOOE+00 .OOOE+00 .OOOE+00 .OOOE+00 .OOOE+00 .OOOE+00 TOTAL .OOOE+00 .OOOE+00 .OOOE+OD .OOOE+00 .OOOE+00 .OOOE+00 .OOOE+00 AGE GIDUP: TEENAGER H3 .OOOE+00 .OOOE+00 .OOOE+00 .OOOE+00 .OOOE+00 .OOOE+00 .OOOE+00 C060 .OOOE+00 .OOOE+00 .OOOE+00 .OOOE+00 .OOOE+00 .OOOE+00 .OOOE+00 N163 .OOOE+00 .OOOE+00 .OOOE+0O .OOOE+00 .OOOE+00 .OOOE+00 .OOOE+00 SR90 .OOOE+00 .OOOE+00 .OOOE+00 .OOOE+0O .OOOE+00 .OOOE+00 .OOOE+00 CS134 .OOOE+00 .OOOE+00 .OOOE+00 .OOOE+00 .OOOE+00 .OOOE+00 .OOOE+00 CS137 .OOOE+00 .OOOE+00 OOE .OOOE+OO .OOOE+OO .OOOE+OO .OOOE+OO00 TOTAL .OOOE+00 .OOOE+00 .OOOE+00 .OOOE+00 .OOOE+00 .OOOE+00 .OOOE+00 AGE GEOUP: CHILD H3 .OOOE+00 .OOOE+00 .OOOE+00 .OOOE+00 .OOOE+00 .OOOE+00 .OOOE+00 C060 .OOOE+00 .OOOE+00 .OOOE+00 .OOOE+00 .OOOE+0O OOOE+00 .OOOE+00 N163 .OOOE+00 .OOOE+00 .OOOE+00 .OOOE+00 .OOOE+00 .OOOE+00 .OOOE+00 SR90 .OOOE+00 .OOOE+00 .OOOE+00 .OOOE+00 .OOOE+O0 .000E+00 .OOOE+00 CS134 .OOOE+00 .OOOE+00 .OOOE+00 .000E+0O .OOOE+00 .OOOE+0O .OOOE+00 CS137 .OOOE+00 .OOOE+00 .OOOE+0O .OOOE+00 .OOOE+00 .000E+00 .OOOE+00 TOTAL .OOOE+00 .OOOE+00 .OOOE+OO .OOOE+00 .OOOE+00 .OOOE+00 .OOOE+00 Page 12

AQUADCS (REG. GUIDE 1.109 - AQUATIC PATHWAY RADIATION EXPOSURES) NYPA / ENTECH ENGINEERING 2-Nov-OS PACE a IP2 SEP LEAK: 10 RELEASE IN 6-HR TIDAL FLOW w/o FURTHER DILUTION: W/WATER Path RADIATION EXPOSURE (mrem,) DUE TO INGESTION OF CONTAMINATED FRESH WATER INVERTEBRATE

[Exposure interval (hrs) - 2.190E+03]

NUCLIIE BONE LIVER T. BODY THYROID KIDNEY LUNG GI-LLI AGE GFOUP: INFANT H3 .OOOE+00 .OOOE+00 .OOOE+00 .OOOE+00 .OOOE+00 .OOOE+00 .OOOE+00 C060 .OOOE+00 .OOOE+00 .000E+00 .OOOE+00 .OOOE+00 .000E+00 .000E+00 N163 .OOOE+00 .OOOE+00 .OOOE+00 .OOOE+00 .OOOE+00 .OOOE+00 .OOOE+00 SR90 .OOOE+00 .OOOE+00 .OOOE+00 .OOOE+00 .OOOE+00 .OOOE+00 .OOOE+00 CS134 .OOOE+00 .OOOE+00 .OOOE+00 .OOOE+00 .OOOE+00 .OOOE+00 .OOOE+00 CS137 .000E+00 .OOOE+00 .OOOE+00 .OOOE+00 .OOOE+00 .OOOE+00 .OOOE+00 TOTAL .OOOE+00 OOOE+00 OOOE+00 OOOE+00 OOOE+00 .OOOE+00 OOOE+00 AQUADCS (REG. GUIDE 1.109 - AQUATIC PATHWAY RADIATION EXPOSURES) NYPA / ENTECH ENGINEERING 2-Nov-05 PAGE 9 IP2 SEP LEAK; 1Q RELEASE IN 6-HR TIDAL FLOW w/o FURTHER DILUTION: W/WATER Path RADIATION EXPOSURE (mrun,) DUE TO INGESTION OF CONTAMINATED SALT WATER FISH (Exposure interval (hrs) - 2.190E+031 NUCLICE BONE LIVER T. BODY THYROID KIDNEY LUNG GI-LLI AGE GROUP: ADULT N3 .1OOOE+00 .OOOE+00 .000E+00 .OOOE+00 .OOOE+00 .OOOE+00 .OOOE+00 C060 .OOOE+00 .OOOE+00 .000E+00 .OOOE+00 .OOOE+00 .OOOE+00 .OOOE+00 NI63 .OOOE+00 .OOOE+00 .OOOE+00 .OOOE+00 .OOOE+00 .OOOE+00 .OOOE+00 SR90 .OOOE+00 .OOOE+00 .OOOE+00 .OOOE+00 .OOOE+00 .OOOE+00 .OOOE+00 C5134 .OOOE+00 .OOOE+00 .OOOE+00 .OOOE+00 .OOOE+00 .000E+00 .OOOE+00 C5137 .OOOE+00 .OOOE+00 .OOOE+00 .OOOE+00 .OOOE+00 .OOOE+00 .OOOE+00 TOTAL .OOOE+00 .OOOE+00 .OOOE+00 .OOOE+00 .OOOE+00 .OOOE+00 .OOOE+00 AGE GROUP: TEENAGER H3 .OOOE+00 .OOOE+00 .000E+00 .OOOE+00 .OOOE+00 .OOOE+00 .OOOE+00 C060 .000E+00 .OOOE+00 .O0OE+00 .OOOE+00 .OOOE+00 .OOOE+00 .OOOE+00 N163 .OOOE+00 .OOOE+00 .030E+00 .OOOE+00 .OOOE+00 .OOOE+00 .OOOE+00 SR90 .OOOE+00 .OOOE+00 .000E+00 .OOOE+00 .OOOE+00 .OOOE+00 .OOOE+00 C5134 .OOOE+00 .OOOE+00 .OOOE+00 .OOOE+00 .OOOE+00 .OOOE+00 .OOOE+00 CS137 .OOOE+00 .OOOE+00 .OOOE+00 .OOOE+00 .OOOE+00 .OOOE+00 .OOOE+00 TOTAL .OOOE+00 .OOOE+00 .000E+00 .OOOE+00 .OOOE+00 .OOOE+00 .OOOE+00 AGE GROUP: CHILD H3 .OOOE+00 OOOE+00 OOOE+00 OOOE+00 OOOE+00 OOOE+00 OOOE+00 C060 .000E+00 .OOOE+00 .OOOE+00 .OOOE+00 .OOOE+00 .OOOE+00 .OOOE+00 N163 .OOOE+00 .OOOE+00 .OOOE+00 .OOOE+00 .OOOE+00 .OOOE+00 .OOOE+00 SR90 .OOOE+00 .OOOE+00 .OOOE+00 .OOOE+00 .OOOE+00 .OOOE+00 .OOOE+00 CS134 .000E+00 .OOOE+00 .OOOE+00 .O00E+00 .OOOE+00 .000E+00 .OOOE+00 C5137 .OOOE+00 .OOOE+00 .OOOE+00 .OOOE+00 .OOOE+00 .OOOE+00 .OOOE+00 TOTAL .OOOE+00 .OOOE+00 .OOOE+00 .OOOE+00 .OOOE+00 .OOOE+00 .OOOE+00 Page 13

AQUADCS (REG. GUIDE 1.109 - AQUATIC PATHWAY RADIATION EXPOSURES) NYPA / ENTECH ENGINEERING 2-Nov-05 PACE 10 IP2 SEP LEAX; 1Q RELEASE IN 6-HR TIDAL FLOW ./o FURTHER DILUTION: W/WATER Path RADIATION EXPOSURE (mrem) DUE TO INGESTION OF CONTAMINATED SALT WATER FISH

[Exposure interval (hrs) - 2.190E+031 NUCLICE BONE LIVER T. BODY THYROID KIDNEY LUNG GI-LLI AGE GFOUP: INI FANT H3 .OOOE+00 .OOOE+00 .OOOE+00 .OOOE+00 .OOOE+00 .OOOE+0O .OOOE+00 C060 .OOOE+00 .OOOE+00 .OOOE+O0 .OOOE+00 .OOOE+00 .OOOE+00 .OOOE+00 NI 63 .OOOE+00 .OOOE+00 .OOOE+00 .OOOE+00 .OOOE+0O .OOOE+00 .OOOE+00 SR90 .OOOE+00 .OOOE+00 .OOOE+00 .OOOE+00 .OOOE+00 .OOOE+00 .OOOE+00 CS134 .OOOE+00 .OOOE+00 .OOOE+00 .OOOE+00 .OOOE+00 .OOOE+00 .OOO+00 CS137 .OOOE+00 .OOOE+00 .OOOE+00 .OOOE+00 .OOOE+00 .OOOE+00 .000+00 TOTAL .OOOE+O0 .OOOE+00 .OOOE+00 .OOOE+00 .OOOE+00 .OOOE+00 .OOOE+00 AQUADCS (REG. GUIDE 1.109 - AQUATIC PATHWAY RADIATION EXPOSURES) NYPA / ENTECH ENGINEERING 2-Nov-OS PAGE 11 IP2 SEP LEAR; 1Q RELEASE IN 6-HR TIDAL FLOW w/o FURTHER DILUTION; W/WATER Path RADIATION EXPOSURE (mrnm) DUE TO INGESTION OF CONTAMINATED SALT WATER INVERTEBRATE

[Exposure interval (hrs) - 2.190E+03)

NUCLIDE DONE LIVER T. BODY THYROID KIDNEY LUNG GI-LLI AGE GROUP: Ai DULT H3 .000E+00 4.446E-08 4.446E-08 4.446E-08 4.446E-08 4.446E-08 4.446E-08 C060 .OOOE+00 .7.552E-09 1.666E-08 .OOOE+00 .OOOE+00 .OOOE+0O 1.419E-07 NI63 2.760E-07 1.913E-08 9.256E-09 .OOOE+00 .OOOE+00 .OOOE+00 3.991E-09 SR90 1.695E-06 .OOOE+00 4.158E-07 .OOOE+00 .OOOE+00 .OOOE+00 4.896E-08 CS134 1.963E-07 4.672E-07 3.820E-07 .OOOE+00 1.512E-07 5.019E-08 8.176E-09 CS137 4.227E-06 5.781E-06 3.797E-06 .OOOE+00 1.962E-06 6.523E-07 1.119E-07 TOTAL 6.394E-06 6.319E-06 4.655E-06 4.446E-08 2.158E-06 7.470E-07 3.594E-07 AGE GROUP: TI EENAGER H3 .OOOE+00 3.411E-08 3.411E-08 3.411E-08 3.411E-08 3.411E-08 3.411E-08 C060 .OOOE+00 7.536E-09 1.698E-08 .OOOE+00 .OOOE+00 .OOOE+00 9.816E-08 NI 63 2.856E-07 2.017E-08 9.681E-09 .OOOE+0O .OOOE+00 .OOOE+00 3.211E-09 SR90 1.410E-06 .OOOE+00 3.493E-07 .OOOE+00 .OOOE+00 .OOOE+00 3.959E-08 CS134 2.008E-07 4.726E-07 2.193E-07 .OOOE+00 1.502E-07 5.734E-08 5.878E-09 CS137 4.514E-06 6.006E-06 2.0)2E-06 .OOOE+00 2.044E-06 7.941E-07 8.545E-08 TOTAL 6.411E-06 6.540E-06 2.720E-06 3.411E-08 2.228E-06 8.855E-07 2.664E-07 AGE GR9UP: ClHILD H3 .OOOE+00 2.923E-08 2.923E-08 2.923E-08 2.923E-08 2.923E-08 2.923E-08 C060 .OOOE+00 6.347E-09 1.872E-08 .OOOE+00 .OOOE+00 .OOOE+00 3.515E-08 NI63 3.883E-07 2.079E-08 1.321E-08 .OOOE+00 .OOOE+O .OOOE+00 1.400E-09 SR90 1.292E-06 .OOOE+00 3.276E-07 .OOOE+00 .OOOE+00 .OOOE+00 1.741E-08 CS134 2.511-07 4.121E-07 8.6139-08 .OOOE+OO 1.277E-07 4.583E-08 2.222E-09 CS137 5.897E-06 5.644E-06 8.331E-07 .OOOE+00 1.839E-06 6.618E-07 3.534E-08 TOTAL 7.828E-06 6.113E-06 1.309E-06 2.923E-08 1.996E-06 7.368E-07 1.208E-07 AQUADO3 (REG. GUIDE 1.109 - AQUATIC PATHWAY RADIATION EXPOSURES) NYPA / ENTECH ENGINEERING 2-Nov-05 PAGE 12 IP2 SF? LEAR; 1Q RELEASE IN 6-HR TIDAL FLOW w/o FURTHER DILUTION; W/WATER Path RADIATION EXPOSURE (mre) DUE TO INGESTION OF CONTAMINATED SALT WATER INVERTEBRATE

[Exposure interval (hrs) - 2.190E+031 NUCLID 3 DONE LIVER T. BODY THYROID KIDNEY LUNG GI-LLI AGE GRJ)UP: INFANT H3 .OOOE+00 .OOOE+00 .OOOE+00 .OOOE+00 .OOOE+00 .OOOE+00 .OOOE+O0 C060 .OOOE+00 .000E+00 .OOOE+00 .OOOE+00 .OOOE+00 .OOOE+00 .OOOE+00 NI63 .OOOE+00 .OOOE+00 .OOOE+00 .OOOE+00 .OOOE+00 .OOOE+00 .OOOE+00 SR90 .OOOE+00 .OOOE+00 .OOOE+00 .OOOE+00 .OOOE+00 .OOOE+00 .OOOE+00 CS134 .OOOE+00 .OOOE+00 .OOOE+00 .OOOE+00 .OOOE+00 .OOOE+00 .OOOE+00 CS137 .OOOE+00 .OOOE+00 .OOOE+00 .OOOE+00 .OOOE+00 .000E+00 .OOOE+00 TOTAL .OOOE+00 .OOOE+00 OOOE+00 .OOOE+00 .OOOE+00 .OOOE+00 .OOOE+00 Page 14

AQUADOS (REG. GUIDE 1.109 - AQUATIC PATHWAY RADIATION EXPOSURES) NYPA / ENTECH ENGINEERING 2-Nov-OS PAGE 13 IP2 SIP LEAK: 1Q RELEASE IN 6-HR TIDAL FLOW w/o FURTHER DILUTION; W/WATER Path RADIONUCLIDE CONCENTRATIONS (pCi/liter) AT EXPOSURE SITE - DRINKING WATER PATHWAY CRADIOACTIVE DECAY TIME (hrs) - .OOOE+00j NUCLJDE Con centr. NUCLIDE Concentr. NUCLIDE Concentr. NUCLIEDE Concentr.

H3 3.6 43E-01 C14 .OOOE+00 NA24 .OOOE+00 P32 .OOOE+00 CR51 .0 IOOE+00 MN54 .OOOE+00 MN56 .OOOE+00 FE55 .OOOE+00 FESS .0 OOE+00 C058 .OOOE+00 C060 2.823E-06 - N163 6.793E-06 -

NI6!. .0 OOE+00 CU64 .OOOE+00 ZN65 .OOOE+00 ZN69 .OOOE+00 BR81 .0 OOE+00 BR84 .OOOE+00 BR85 .OOOE+00 RB86 .OOOE+00 RB8E .0 OOE+00 RB89 .OOOE+00 SR89 .OOOE+00 SR90 8.943E-06 **

SR91 .0 OOE+00 SR92 .OOOE+00 Y90 .OOOE+00 Y91M .OOOE+00 Y91 .0 OOE+00 Y92 .OOOE+00 Y93 .OOOE+00 ZR95 .OOOE+00 ZR91 .0OIOOE+00 NB95 .000E+00 MO99 .000E+00 TC99M . OOOE+00 TClCl .0( DOE+00 RU103 .OOOE+00 RU105 .OOOE+00 RU106 .OOOE+00 AG11OM .01 DOE+00 TE125M .OOOE+00 TE127M .OOOE+00 TE127 OOOE+00 TE1l9M .01 OOE+00 TE129 .OOOE+00 TE131M .OOOE+00 TE131 .OOOE+00 TE132 .01 OOE+00 1130 .OOOE+00 1131 .OOOE+00 1132 .OOOE+00 I133 .01 )OE+00 1134 .OOOE+00 I135 .OOOE+00 CS134 1.127E CS136 .01 OOE+00 CS137 1.894E-04

  • CS138 .OOOE+00 BA139 I.OOOE+00 BA140 .01 OOE+00 BA141 .OOOE+00 BA142 .OOOE+00 LA140 I.OOOE+00 LA142 .01 O0E+00 CE141 .OOOE+00 CE143 .OOOE+00 CE144 .OOOE+00 PR143 .01 OOE+00 PR144 .OOOE+00 ND147 .OOOE+00 W187 .OOOE+00 NP239 .01OOE+00 TOTAL 3.6t15E-01 U- AD, .P I O. E ) E AQUADCS (REG. GUIDE 1.109 - AQUATIC PATHWAY RADIATION EXtPOSURES) NtYTA / ENTECH ENGINEERING 2-Nov-05 PAGE 14 IP2 SP LEAK; 1Q RELEASE IN 6-HR TIDAL FLOW w/o FURTHER DILUTION; W/WATER Path RADIAATION EXPOSURE (em) DUE TO DRINKING OF CONTAMINATED WATER

[Exposure interval (hrs) - 2.190E+031 NUCLIDE BONE LIVER T. BODY THYROID KIDNEY LUNG GI-LLI AGE GROUP: A DULT H3 .OOOE+00 6.980E-06 6.930E-06 6.980E-06 6.980E-06 6.980E-06 6.980E-06 C060 .OOOE+00 1.103E-09 2.432E-09 .000E+00 .OOOE+00 .OOOE+00 2.071E-08 N163 1.612E-07 1.117E-08 5.486E-09 .OOOE+00 .OOOE+00 .OOOE+00 2.331E-09 SR90 1.237E-05 .OOOE+00 3.036E-06 .OOOE+00 .OOOE+00 .OOOE+00 3.574E-07 CS134 1.280E-07 3.045E-07 2.490E-07 .OOOE+00 9.855E-08 3.271E-08 5.329E-09 CS137 2.755E-06 3.768E-06 2.468E-06 .OOOE+00 1.279E-06 4.252E-07 7.294E-08 TOTAL 1.541E-05 1.106E-05 1.274E-05 6.980E-06 8.358E-06 7.438E-06 7.439E-06 AGE GR3UP: TEENAGER H3 .OOOE+00 4.923E-06 4.923E-06 4.923E-06 4.923E-06 4.923E-06 4.923E-06 COCO .OOOE+00 1.011E-09 2.278E-09 .OOOE+00 .OOOE+00 .OOOE+00 1.317E-08 N163 1.533E-07 1.083E-08 5.197E-09 .OOOE+00 .OOOE+00 .OOOE+00 1.724E-09 SR90 9.463E-06 .OOOE+00 2.337E-06 .000E+00 .OOOE+00 .OOOE+00 2.657E-07 CS134 1.203E-07 2.832E-07 1.314E-07 .OOOE+00 8.998E-08 3.435E-08 3.522E-09 CS137 2.705E-06 3.598E-06 1.253E-06 .OOOE+00 1.224E-06 4.758E-07 5.120E-08 TOTAL 1.244E-05 8.816E-06 8.653E-06 4.923E-06 6.237E-06 5.433E-06 5.258E-06 AGE GR'9UP: C1:ILD H3 .OOOE+00 9.428E-06 9.428E-06 9.428E-06 9.428E-06 9.428E-06 9.428E-06 C060 .OOOE+00 1.904E-09 5.615E-09 .OOOE+00 OOOE+00 OOOE+00 1.055E-08 N163 4.660E-07 2.495E-08 1.585E-08 .OOOE+00 .000E+00 .000E+00 1.680E-09 SR90 1.938E-05 .000E+00 4.914E-06 .OOOE+00 .OOOE+00 .OOOE+00 2.611E-07 CS134 3.364E-07 5.520E-07 1.164E-07 .OOOE+00 1.711E-07 6.138E-08 2.975E-09 CS137 7.897E-06 7.559E-06 1.116E-06 .OOOE+00 2.463E-06 8.863E-07 4.733E-08 TOTAL 2.808E-05 1.757E-05 1.560E-05 9.428E-06 1.206E-05 1.038E-05 9.752E-06 Page 15

AQUADCS (REG. GUIDE 1.109 - AQUATIC PATHWAYRADIATION EXPOSURES) NYPA / ENTECH ENGINEERING 2-Nov-05 PAGE 25 IP2 SEP LEAK; 1Q RELEASE IN 6-HR TIDAL FLOW w/o FURTHER DILUTION; W/WATER Path RADIATION EXPOSURE (mrem) DUE TO DRINKING OF CONTAMINATED WATER (Exposure interval (hrs) - 2.190E+03]

NUCLIDE BONE LIVER T. BODY THYROID KIDNEY LUNG GI-LLI AGE GROUP: INFANT H3 .OOOE+OO 9.256E-06 9.256E-06 9.256E-06 9.256E-06 9.256E-06 9.256E-06 C060 .OOOE+OO 2.515E-09 5.939E-09 .OOOE+00 .OOOE+O0 .OOOE+OO 5.985E-09 NI63 3.553E-07 2.197E-08 1.233E-08 .OOOE+OO .OOOE+OO .OOOE+OO 1.093E-09 SR90 1.36SE-05 .OOOE+OO 3.475E-06 .OOOE+OO .OOOE+OO .OOOE+OO 1.704E-07 CS134 3.506E-07 6.539E-07 6.604E-08 .OOOE+OO 1.683E-07 6.901E-08 1.776E-09 CS137 6.157E-06 9.548E-06 6.766E-07 .OOOEOO 2.563E-06 1.038E-06 2.985E-08 TOTAL 2.251E-05 1.948E-05 1.349E-05 9.256E-06 1.l99E-05 1.036E-05 9.465E-06 AQUADOS (REG. GUIDE 1.109 - AQUATIC PATHWAY RADIATION EXPOSURES) NYPA / ENTECH ENGINEERING 2-Nov-05 PAGE 16 IP2 SFP LEAK; 1Q RELEASE IN 6-HR TIDAL FLOW W/o FURTHER DILUTION; W/WATER Path

SUMMARY

OF RADIATION EXPOSURES (nrem)

EXPOSURE PATHWAY TIME (hrs) BONE LIVER T. BODY THYROID KIDNEY LUNG GI-LLI SKIN AGE GROUP: ADULT FRESH WATER FISH 2.19E+03 2.97E-05 2.65E-O5 2.03E-05 1.81E-07 9.06E-06 3.13E-06 1.03E-06 FRESH WATER INVERT. 2.19E+03 .OOE+OO.  :.OOE+OO .OOE+OO .OOE+OO .OOE+OO .OOE+OO .OOE+OO SALT WATER FISH 2.19E+03 .OOE+OO .OOE+OO .OOE+OO .OOE+OO .OOE+OO .OOE+OO .OOE+OO SALT WATER INVERT. 2.19E+03 6.39E-06 6.32E-06 4.65E-06 4.45E-08 2.16E-06 7.47E-07 3.59E-07 DRINKING WATER 2.19E+03 1.54E-OS 1.11E-O5 1.27E-OS 6.98E-06 8.36E-06 7.44E-06 7.44E-06 SHORELINE DEPOSITS .OOE+OO .OOE+OO .OOE+OO .OOE+OO .OOE+OO .OOE+OO .OOE+OO .OOE+OO .OOE+00 TOTAL (ALL PATHS) 5.15E-05 4.38E-05 3.77E-05 7.21E-06 1.96E-05 1.13E-05 E.83E-06 .OOE+OO AGE GROUP: TEENAGER FRES3 WATER FISH 2.19E+03 2.92E-05 2.75E-05 1.21E-05 1.39E-07 9.38E-06 3.72E-06 8.00E-07 FRES3 WATER INVERT. 2.19E+03 .OOE+OO .OOE+OO .OOE+OO .OOE+OO .OOE+OO .OOE+OO .OOE+OO SALT WATER FISH 2.19E+03 .OOE+OO .OOE+OO .OOE+OO .OOE+OO .OOE+OO .OOE+OO .OOE+OO SALT WATER INVERT. 2.19E+03 6.41E-06 6.54E-06 2.72E-06 3.41E-08 2.23E-06 8.86E-07 2.66E-07 DRINKING WATER 2.19E+03 1.24E-05 8.82E-06 8.65E-06 4.92E-06 6.24E-06 5.43E-06 5.26E-06 SHORELINE DEPOSITS .OOE+OO .OOE+OO .OOE+OO .OOE+OO .OOE+OO .OOE+OO .OOE+OO .OOE+OO .OOE+OO TOTAL (ALL PATHS) 4.81E-05 4.28E-05 2.35E-05 5.10E-06 1.78E-05 1.OOE-05 6.32E-06 .OOE+OO AGE GR9UP: CHILD FRES3 WATER FISH 2.19E+03 3.35E-05 2.47E-05 5.87E-06 1.15E-07 8.10E-06 2.99E-06 3.83E-07 FRES3 WATER INVERT. 2.19E+03 .OOE+OO .OOE+OO .OOE+OO .OOE+OO .OOE+0OO .OOE+OO .OOE+OO SALT WATER FISH 2.19E+03 .OOE+OO .OOE+OO .OOE+OO .OOE+OO .OOE+OO .OOE+OO .OOE+OO SALT WATER INVERT. 2.19E+03 7.83E-06 6.11E-06 1.31E-06 2.92E-08 2.00E-06 7.37E-07 1.21E-07 DRINKING WATER 2.19E+03 2.81E-05 1.76E-05 1.56E-05 9.43E-06 1.21E-05 1.04E-OS 9.75E-06 SHORELINE DEPOSITS .OOE+OO .OOE+OO .OOE+OO .OOE+OO .OOE+OO .OOE+OO .OOE+OO .OOE+OO .OOE+OO TOTAL (ALL PATHS) 6.94E-OS 4.84E-05 2.2eE-OS 9.57E-06 2.22E-OS 1.41E-OS 1.03K-OS .OOE+OO AGE GR UP: INFANT FRESN WATER FISH 2.19E+03 .OOE+DO .OOE+OO .OOE+OO .OOE+OO .OOE+OO .OOE+OO .OOE+OO FRESI WATER INVERT. 2.19E+03 .OOE+OO .OOE+OO .OOE+OO .OOE+OO .00E+OO .OOE+OO .OOE+OO SALT WATER FISH 2.19E+03 .OOE+OO .OOE+OO .OOE+00 .OOE+OO .OOE+00 .OOE+OO .OOE+OO SALT WATER INVERT. 2.19E+03 .OOE+00 .OOE+OO .OOE+O0 .OOE+OO .OOE+00 .OOE+O0 .OOE+OO DRINCING WATER 2.19E+03 2.25E-OS 1.95E-OS 1.35E-OS 9.26E-06 1.20E-OS 1.04E-05 9.46E-06 SHORELINE DEPOSITS .OOE+00 .OOE+O0 .OOE+OO .OOE+O0 .OOE+00 .OOE+O0 .OOE+O0 .OOE+O0 .OOE+OO TOTSA; (ALL PATHS) 2.25E-OS 1.95E-OS 1.35E-OS 9.26E-06 1.20E-OS 1.04E-05 9.46E-06 .00E+0O

  • . . . . END OF ANALYSIS . . . . .

Page 16

= Enterggy Indian Point NPP Dec 20, 2,305 IPEC-CHM-05-043 MEMORANDUM TO: D. MAYER - Director Special Projects FROM: S. SANDIKE - Sr. HP/Chem Specialist

SUBJECT:

INITIAL ASSESSMENT OF TRITIUM IN UNIT 2 STORM DRAINS Storm Drains are monitored at unit 2 as part~of the compliance commitments to Generic Letter 80-10. The sampling program includediatnnual samples of sediment and water for gamma activity as well as Tritium. Additionally, gamma counts were performed monthly on water from what was identified as key manholes (#3, 5, and 6). No gamma has been identified in Storm Drains since the Feb 2000 tube leak.

After confirmation that there was elevated Tritium in MW-I 11, Chemistry Supervisors and Staff suggested collection of additional storm drain samples in the area for Tritium. This suggestion stemmed from our operational history of potential communication between the storm drain systems and the ground water. Despite having no indication of elevated H-3 instorm drains as late as April, 2005, we felt that we should collect H-3 samples in these system prior to the next regularly scheduled annual test (summer 2006).

On Nov 10, 2005 we identified H-3 in MH-6 (approximately 80 feet from MW-1 1 location) at 51300 pCi/L, which was approximately 50 times higher than routine levels. This activity was verified on Dec 8, 2005 when another sample from MH-6 indicated 37100 pCi/L. While the downstrea m H-3 levels indicated only 2400 pCi/L or less, these levels suggested re-evaluating any potential effluent impact, should the system's final effluent point reach similar levels.

Because the discharge canal is the normal release point for all our liquid releases, dilution flow is much more easily identified than any potential release below the canal. Coupled with the REMP samples at the discharge of the canal, we felt that there would be sufficient evidence to demonstrate the effluent impact from such a release into the canal via the storm drains.

The attached calculation was therefore performed to verify that storm drain releases continue to be insignificant, and to bound a potential release into the canal, with routine dilution flow, worst case H-3 source term, and a best estimate of release flow rate from the storm drain over a quarter. Of course, this linear function can be extrapolated up or down to accommodate other flow rates into the canal, as we may later determine.

IPEC-CHM-05-043 Page I

Initial Effluent Assessment of Tritium in Storm Drains near MW-I I ec 20 Release Rate lI191EZI ml/day or 5.04E+04 gpd or 35.00 gpm Duration of Release, in days zIIz Waste vol released = 4.592+06 gal Dilutior flow [ 12E0 gpm Dilution vol released = 1.572+11 gal Dii Factor 2.92E-05 (35 gpm over a quarter for continuous Storm Drain flow is conservative )

=__Activity________ PRE POST POST MICRO-ISOT()PE Released EC^1 0 DILUTION DILUTION DILUTION CURIES i

____uCi/mi TOTAL 1.002-04 1.OOE-04 conc limit 1.002-02 nla CONC/MPC 1.OOE-02 1.OOE-02 12.922-09 uCi/mI 2.92E-09 4

J CONC/MPC 2.922-07 2.92E-07 RELEASED 1.742+06 1.74E+06 NURE(; 0133 "Applicable Factor" for Near Field Dilution = IZIoZ

___ ___ ___ _ _ ___ ___ ___ Adult Total Body mrem per quarter _ _ _ _ _ _

iSOTCOPE BONE LIVER TOT BODY THYROID KIDNEY LUNG GI-LLI

______ .002+00 3.592-07 3.592-07 3.592-07 3.592-07 3.592-07 3.9-07 Adult ibtal 0.OOE+00 3.592-07 3.592-07 3.592-07 3.592-07 I3.592-07 3.592-07 This dose calculation was performed according to our ODOM and standard Reg Guide 1.109 modeling. It indicates that despite the conservative inputs (including the use of 100,000 l)Ci/L Tritium source term, which is higher than anything yet identified), the observed levels of [1-3 in a release of this magnitude from the storm drain system do not result in any mathematically significant additional dose.

Since typical WB quarterly doses from liquid effluents at Unit 2 are approximately 5.OE-4 mrem or lower (<: 0.33% NRC limit), a calculated dose from this pathway of 3.6E-7 mrem is not significant and should not result in any necessary redefinition of our existing 80-10 program or trigger levels. However, these analyses provide sufficient evidence to temporarily increasYe the sampling periodicity to assist us in our attempts to map, identify, and eventually eliminate the source of Hq-3 into the local ground water. Analyses such as the bounding calculation above will be included in the annual effluent report (Reg Guide 1.21), with best measurements of all input parameters, to communicate this issue fully with the NRC.

S /55 cc: W. Axelson D. Wilson D. Quinn D. Mayer D. Leach I PEC- CHM-05 -04 Pae3 2 Page

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