ML071580362

Calculation H21C-101, Rev 00, U2 MSLB, AST Methodology.

ML071580362
Person / Time
Site:	Nine Mile Point
Issue date:	05/29/2007
From:	Berg M, Pustulka H, Stinson G Engineering Services Co
To:	Office of Nuclear Reactor Regulation
References
H21C-101, Rev 00
Download: ML071580362 (25)

Text

{{#Wiki_filter:Nine Mile Point Unit 2 Alternative Source Term Calculation H21C-101"U2 MSLB, AST Methodology" Engineering Services'age 1 (Next 2 .)otal 24 ast Attachment 2 NINE MILE POINT NUCLEAR STATION Computer Output/Microfilm separately filed? (Yes/No/N/A) -No- Safety Class: (*SR/NSR/Qxx): SR* If SR, attach or reference the associated Design Verification Report.Superseded Document(s): ,)/Ap Document Cross Reference(s) -For additional references see page(s) 5 Output provided? 4 If yes, group(s)(Y/N)Ref No.Ref No.Document No.Type Index Sheet Rev Document No.Type Index Sheet Rev General

References:

Remarks: Confirmation Required (Yes/No): 1Oc Final Issue Status Turnover See Page(s): I A Req'd (Yes/N/A): iz 10 CFR50.59 Evaluation Number(s): Component ID(s)(As shown in MEL): Copy of Applicability Determination4 Attached? Yes. No*E] 1l/N/A 0 *If 'No", location of AD/Screen? Key Words: Main Steam Line Break, MSLB, Design Basis, Dose, Accident ENGINEERING SERVICES CALCULATION CONTINUATION SHEET Page -2 1 (Next 3__ J Project: Nine Mile Point Nuclear Station Unit: 2 Disposition: __Originator/Date Reviewer/Date Calculation No. Revision M. Berg 5/29/07 H. Pustulka 5/29/07 H21C-101 0 Ref IList of Effective Pages Page Latest Page Latest Page Latest Page Latest Page Latest Page Latest No. Rev. No. Rev. No. Rev. No. Rev. No. Rev. No. Rev.1 0 Al-A5 0 2 0 Attach 1 0 3 0 Attach 2 0 4 0 5 0 6 0 7 0 8 0 9 0 11 0 12 0 13 0 14 0 15 0 16 0 17 0 Total Number of Calculation Pages 24 ENGINEERING SERVICES CALCULATION CONTINUATION SHEET Page 3 (Next 4 .)Project- Nine Mile Point Nuclear Station Unit: _2- Disposition: Originator/Date Reviewer/Date Calculation No. Revision M. Berg 5/29/07 H. Pustulka 5/29/07 H21C-101 0 Ref.Table of Contents CALCULATION COVER SHEET .................................................................................................................. 1 List of Effective Pages .................................................................................................................................... 2 Table of Contents ........................................................................................................................................... 3 P u rp o s e .................................................................................................................................. ........................ 4 Summary of Results ....................................................................................................................................... 4 M e tho d o lo g y .................................................................................................................................................. 4 A ss u m p tio n s .................................................................................................................................................. 5 R e fe re n ce s ..................................................................................................................................................... 5 D e s ig n In p u ts ................................................................................................................................................. 6 Calculation ..................................................................................................................................................... 9 C o n c lu s io n s .................................... ............................................................................................................ 17 Appendix A: A Spreadsheet for the Calculation of Offsite and Control Room Doses (5 pages)Attachment 1: Design Verification Report (1 Page)Attachment 2: Design Verification Checklist (1 Page) ENGINEERING SERVICES CALCULATION CONTINUATION SHEET Page 4 (Next 5)Project" Nine Mile Point Nuclear Station Unit: _2_ Disposition: Originator/Date Reviewer/Date Calculation No. Revision M. Berg 5/29/07 H. Pustulka 5/29/07 H21C-101 0 Ref.Purpose This calculation analyzes the Main Steam Line Break (MSLB) Accident for Nine Mile Point for both offsite and Control Room doses.Summary of Results Table 1 -MSLB Summary of Dose Results 4 gCi/gm 1131 DE TEDE (rem)Ul MSLB/U2 Control Room 2.32E-01 U2 MSLB/U1 Control Room 3.81 E-01 U2 MSLB/U2 Control Room 2.96E+00 U2 MSLB EAB 3.92E-01 U2 MSLB LPZ 5.34E-02 The offsite cases meet all of the applicable TEDE limits (2.5 rem EAB/LPZ at the normal coolant activity of 0.2 gCi/gm DE 1131 per the Proposed Technical Specification [Ref 4, Item 1.9] and 25 rem EAB/LPZ at the pre-incident spike coolant activity of 4.0 p.Ci/gm, or iodine spiking factor of 20*0.2 .tCi/gm [Ref 4., Item 1.10]). The Control Room meets the TEDE limit of 5 rem for either coolant activity or for the normal proposed Tech Spec coolant activity.This dose analysis fully complies with NRC Regulatory Guide 1.183 [Ref 1].Methodology The MSLB accident is initiated from hot stand-by conditions in order to conservatively maximize the mass of coolant released from the break and thus maximizing the activity released. Following accident initiation, the radionuclide inventory from the released coolant is assumed to reach the environment instantaneously. The TEDE values obtained for these analyses are compared with the 2.5/25 rem for offsite doses and the 5 rem TEDE limit for the Control Room [Ref 1]. The 2.5 rem offsite value is for the 0.2 uCi/g 1-131 limit and the 25 rem value corresponds to the 4 uCi/g 1-131 limit caused by an iodine spiking factor of 20.For the control room analyses, there are three cases: Unit 1 MSLB to Unit 2 control room, Unit 2 MSLB to Unit 1 control room, and Unit 2 MSLB to Unit 2 control room. ENGINEERING SERVICES CALCULATION CONTINUATION SHEET Page -5 7(Next 6)Project: Nine Mile Point Nuclear Station Unit: Disposition: __Originator/Date Reviewer/Date Calculation No. Revision M. Berg 5/29/07 H. Pustulka 5/29/07 H21C-101 0Assumptions Assumption 1: There is no holdup in the Reactor Building.Justification: Per Reference 1, there should be no holdup credited.Assumption 2: In the calculation of the activity release, the entire released coolant mass is conservatively used as per Reference 1 (rather than just the liquid mass).Justification: Reference 4 for Unit I and Reference 5 for unit 2 Assumption 3: There is no fuel damage for a Unit I or Unit 2 MSLB. Therefore, there is no impact of Extended Power Uprate or AST on the dose analysis other than the use of TEDE as the dose measure.Justification: Reference

4. Since there is no fuel damage, AST has no impact on the activity released.

Extended Power Uprate has no impact because the analysis is conducted at zero power hot standby.Assumption 4: An infinite exchange rate between the Control Room and the environment is assumed.Justification: Conservative References

1. "Alternative Radiological Source Terms for Evaluating Design Basis Accidents at Nuclear Power Reactors", US NRC Regulatory Guide 1.183, Revision 0, July 2000 2. J.V. Ramsdell Jr., et al., "Atmospheric Relative Concentrations in Building Wakes", NUREG/CR-6331 Revisionl (PNNL-10521 Revision 1), May 1997 3. "Atmospheric Relative Concentrations for Control Room Radiological Habitability Assessments at Nuclear Power Plants", US NRC Regulatory Guide 1.194, Revision 0 June 2003 4. PSAT 4026CF.QA.03, "Design Database For the Application of the Revised DBA Source Term to Nine Mile Point U 1", Revision 1 5. PSAT 3101CF.QA.03, "Design Database For the Application of the Revised DBA Source Term to Nine Mile Point U2", Revision 0 ENGINEERING SERVICES CALCULATION CONTINUATION SHEET Page -6 (Next 7 ]Project: Nine Mile Point Nuclear Station Unit: Disposition:

__Originator/Date Reviewer/Date Calculaton No. Revision M. Berg 5/29/07 H. Pustulka 5/29/07 H21C-101 0 Ret.Design Inputs Design Input Data (Reference 4 for Unit 1 with item numbers given in brackets, Reference 5 for Unit 2 with item numbers given in double brackets)Control Room Free Volume: Ul: 1.35E+05 ft 3 , [3.9]Control Room Free Volume: U2: 3.81E+05 ft 3*0.529 occupied fraction = 2.0235E+05 ft 33.2,3.3 X/Q values in sec/m 3 *: U1 MSLB EAB: U1 MSLB LPZ: U2 MSLB EAB: U2 MSLB LPZ: Ul MSLB to U2 CR U2 MSLB to U1 CR U2 MSLB to U2 CR 1.90E-04 (ground-level) 1.63E-05 (ground level)1.19E-04 (ground-level) 1.62E-05 (ground level)1.3 1E-04 (ground-level) 1.90E-04 (ground-level) 1.47E-03 (ground-level) [5.1][5.2]5.15.25.55.35.5*This analysis qualifies as a puff release as per defined in Reference 3 [ie release lasts less then 1 minute], so the use of ground level and puff X/Q's are justified. Breathing Rate in m 3/s (from start of release for CR): 3.5E-4[5.4], 5.6Total mass of coolant released:Ul MSLB: 1.0715E+05 lbm, U2: 7.10E6 gm steam +1.58E7 gm flashed liquid +2.56E7 liquid [1.8], 1.8Reactor Steam: Ul MSLB: 24.5% of total mass of coolant, U2: 14.6%(=7. 10E6/(7. 10E6+l.58E7+2.56E7) Coolant DE-I-131 Activity per Unit Mass (microCurie/gram): 0.2 ý+/-Ci/gm Spiking Multiplier for Coolant DE 1-131 Activity: 20[1.8], 1.8[1.9], 1.9[1.910, [1.10]]1131 DCF: 3.29E+04 Rem/C29.2 ENGINEERING SERVICES CALCULATION CONTINUATION SHEET Page -7 (Next 8 Project: Nine Mile Point Nuclear Station Unit: 2 Disposition: Originator/Date Reviewer/Date Calculation No. Revision M. Berg 5/29/07 H. Pustulka 5/29/07 H21 C-101 0ýef.Activity Releases: Unit 1[1.11 & 1.12]~REACTOR COOLANT AND MAINSTEAM, RADIONUCLIDE CONCENTRATIONS~ (.~i I Qm)~[A) 1151 (01 ISOT<OPE IREACTOR MAIN______COOLANT STEAM:KR-855 KR-89 KR-~90 KR-9~2 KR9~KR~-94~KR-'95 KR-97 NOBLE'EXIST ONLY IN 9,1E-04 1 6E-,oS 3.4E- 02 2.4E- 02 5.9-03 5.5E-04 I? .. ...I, VAPOR STATE, REACTOR COOLANT AND MAIN STEAM RADIONUCLIDE CONCENTRATION~S (Ui I qm)I ISOTOPE JIB]REACTOR COOLANT PU MAiN STEAM XE- 131 M XE-1V33M XE- 133 XE- 135M XE- 13~XE- 137 ,E- 141 XE-. 142~XEA 143 XE- 144 SO, THERE ARE NO NOBLE GAS COOLANT VCONCEN-TRATIONS, 7.5E~-05 2.1E-03 7.CE~-Q3 6,OE-03, 23E-211I 8.OE-6Q2 68SE-02 3.2E-03 1 ZE-041 BR 83 1,6E~-03 25E-05 819-84 2,2E-03. 3. E -05 BR -85 , 9.9E-04. 1.7E-05 I1-132, 1,6E-02 Z 4E -04ý3,~ ~ ~ I-E0 ,E-04~ZGE-02 5,8E-04-1-135, 1.2E-02 ~2,OE-04~CSB-834 1.6E-03 E 8s CS 3 Z-0 ,E0 CS-136 3.7E-~06 37E-09 CS -137~ 1.E-05 1,5E-~08~CS-13B 3AaE-03 3AE-06 {ENGINEERING SERVICES CALCULATION CONTINUATION SHEET Page -8 (Next 9 Project: Nine Mile Point Nuclear Station Unit: 2 Disposition: __Originator/Date Reviewer/Date Calculation No. Revision M. Berg 5/29/07 H. Pustulka 5/29/07 H21C-101 0 Ref. 1- -Unit 2[[1.1111 DESIGN DESIGN DESIGN DESIGN COOLANT STEAM COOLANT STEAM ACTIVITY ACTIVITY ACTIVITY ACTIVITY (RCi/gm) (4Ci/gm) (4Ci/gm) 1-131 1.3E-2 2.6E-4 KR-83M NONE 6.4E-3 1-132 2.2E-1 3.3E-3 KR-85M NONE 1.1E-2 1-133 1.6E-1 2.6E-3 KR-85 NONE 3.5E-5 1-134 4.OE-1 7.8E-3 KR-87 NONE 3.9E-2 1-135 1.7E-1 2.8E-3 KR-88 NONE 3.9E-2 CS-134 8.5E-5 8.5E-8 XE-131M NONE 2.8E-5 CS-136 5.5E-5 5.5E-8 XE-133M NONE 5.3E-4 CS-137 2.2E-4 2.2E-7 XE-133 NONE 1.5E-2 CS-138 1.6E-1 1.6E-4 XE-135M NONE 5.OE-2 XE-135 NONE 4.2E-2 XE-138 NONE 1.6E-1 ENGINEERING SERVICES CALCULATION CONTINUATION SHEET I Page 9 (Next 10 Project.- Nine Mile Point Nuclear Station Unit: Disposition: __Originator/Date Reviewer/Date Calculabon No. Revision M. Berg 5/29/07 H. Pustulka 5/29/07 H21C-101 0 Ref.Calculation Offsite and control room doses were calculated using the spreadsheet methodology outlined in Appendix A.Calculation of the Source (Column 1 of Annendix A srnreadsheet) Calculation of the Source (Column I of nnendix spreadsheet) The reactor coolant at the equilibrium level was analyzed for 0.2 gCi/gm 1-131 dose equivalent. The spike concentration of 20 is used as scaling factor in the spreadsheet to report doses as 4 gCi/gm I-131 dose equivalent. The 1-131 dose conversion factor is 3.29E+04 Rem/Ci [Ref 4]. Therefore, 0.2 p.Ci/gm 1-131 equivalent is 0.2

• 3.29E+04 Rem/Ci = 6.58 mRem/gm. For a MSLB the expected iodine activity has to be adjusted to yield 6.58 mRem/gm. This adjustment is performed in the table below where the iodine activity (RCi/gm) that is equivalent to 0.2 RCi/gm is calculated:

Table 2a: Unit 1 Calculated Dose Equivalents (Iodine)(0.2 uCi/gm 1131 DE)Nuclide Expected Converted Expected Adjusted uCi/gm Rem/Ci mRemruCi mRem/gm uCi/gm 1 131 8.60E-04 3.29E+04 3.29E+01 2.831E-02 4.60E-02 1132 1.60E-02 3.81E+02 3.81E-01 6.1OE-03 8.55E-01 1133 1.20E-02 5.85E+03 5.85E+00 7.02E-02 6.41E-01 1134 2.90E-02 1.31E+02 1.31E-01 3.80E-03 1.55E+00 1135 1.20E-02 1.23E+03 1.23E+00 1.48E-02 6.41E-01 Total 6.99E-02 1.23E-01 3.73E+00[Ref4, Item 1.12] [Ref4, Item 9.2] C3/1000 C2*C4 C2*(6.58/1.23E-01) The remaining isotope activities must are adjusted by the same factor (0.2 ýICi/gm Unit 1 case: 6.5786/0.1231) as the iodine. ENGINEERING SERVIES CALCULATION CONTINUATION SHEET Page .10.(Next )Project: Nine Mile Point Nuclear Station Unit: _2_ Disposition: Originator/Date Reviewer/Date Calculation No. Revision M. Berg 5/29/07 H. Pustulka 5/29/07 H21C-101 0:Fef.I I Table 2b: Unit 2 Calculated Dose Equivalents (Iodine)(.2 uCi/gm 1131 DE)Nuclide Expected Converted Expected Adjusted uCi/gm Rem/Ci mRem/uCi mRemr/gm _ Uci/gm 1131 1.30E-02 3.29E+04 3.29E+01 4.28E-01 5.01E-02 1132 2.20E-01 3.811 E+02 3.81E-0I 8.38E-02 8.47E-0_1 1133 1.60E-01 5.85E+03 5.85E+00 9.36E-01 6.16E-01 1134 4.OOE-01 1.31E+02 1.31E-01 5.24E-02 1.54E+00 1135 1.70E-01 1.23E+03 1.23E+00 2.09E-01 6.55E-01 Total 9.63E-01 1.71E+00 3.71E+00[Ref4, Item 1.12] [Ref4, Item 9.2] C3/1000 C2*C4 C2*(6.58/1.23E-01) The remaining isotope activities must are adjusted by the same factor (0.2 pCi/gm Unit 2 case: 6.5786/1.71) as the iodine. ENGINEERING SERVICES CALCULATION CONTINUATION SHEET Page -11 (Next 12 Project., Nine Mile Point Nuclear Station Unit: _2_ Disposition:__ Originator/Date Reviewer/Date Calculation No. Revision M. Berg 5/29/07 H. Pustulka 5/29/07 H21C-101 Ref. I Table 3a: Unit 1 Isotope 0.2 uCi/gm 1131 DE Expected Reactor Coolant (uCi/gm)Expected Main Steam (uCi/gm)(0.2 uCi/Lm 1131 DE)Reactor Coolant (uCi/gm)Main Steam (uCi/gm)Weighted Average*(uCi/gm)Isotope 1131 8.60E-04 1.40E-05 4.60E-02 7.49E-04 3.49E-02 1132 1.60E-02 2.40E-04 8.56E-01 1.28E-02 6.49E-01 1133 1.20E-02 1.90E-04 6.42E-01 1.02E-02 4.87E-01 1134 2.90E-02 5.80E-04 1.55E+00 3.10E-02 1.18E+00 1135 1.20E-02 2.OOE-04 6.42E-01 1.07E-02 4.87E-01 Cs134 5.60E-06 5.60E-09 3.OOE-04 3.OOE-07 2.26E-04 Cs136 3.70E-06 3.70E-09 1.98E-04 1.98E-07 1.49E-04 Cs137 1.50E-05 1.50E-08 8.02E-04 8.02E-07 6.06E-04 Cs138 3.1OE-03 3.1OE-06 1.66E-01 1.66E-04 1.25E-01 Kr83m O.OOE+00 9.1OE-04 O.OOE+00 4.87E-02 1.19E-02 Kr85m O.OOE+00 1.60E-03 0.OOE+00 8.56E-02 2.1OE-02 Kr85 0.00E+00 5.OOE-06 O.OOE+00 2.67E-04 6.55E-05 Kr87 O.OOE+00 5.50E-03 O.OOE+00 2.94E-01 7.21E-02 Kr88 O.OOE+00 5.50E-03 0.OOE+00 2.94E-01 7.21E-02 Xel3lm O.OOE+00 3.90E-06 O.OOE+00 2.09E-04 5.11E-05 Xel33m 0.OOE+00 7.50E-05 0.OOE+00 4.01E-03 9.83E-04 Xe133 O.OOE+00 2.1OE-03 O.OOE+00 1.12E-01 2.75E-02 Xe135m 0.OOE+00 7.OOE-03 0.OOE+00 3.74E-01 9.17E-02 Xe135 O.OOE+00 6.OOE-03 0.OOE+00 3.21E-01 7.86E-02 X138 O.OOE+00 2.30E-02 O.OOE+00 1.23E+00 3.01E-01*Weighted average values were calculated using the following: [(1-0.245)*( uCi/gm)Reactor Coolant] + [(0.245)*( uCi/gm)Man Steam] ENGINEERING SERVICES CALCULATION CONTINUATION SHEET Page 12 ](Next 13-)Project.' Nine Mile Point Nuclear Station Unit: 2- Disposition: __Originator/Date Reviewer/Date Calculation No. Revision M. Berg 5/29/07 H. Pustulka 5/29/07 H21C-101 0 ief.Table 3b: Unit 2 Isotope 0.2 uCi/gm 1131 DE Expected Reactor Coolant (uCi/em)Expected Main Steam (uCi/em)(0.2 uCi/gm 1131 DE)Reactor Coolant (uCi/Lym)Main Steam (uCi/Emm)Weighted Average*(uCi/em)IsotoDe 1131 1.30E-02 2.60E-04 5.OOE-02 1.OOE-03 4.29E-02 1132 2.20E-01 3.30E-03 8.46E-01 1.27E-02 7.25E-01 1133 1.60E-01 2.60E-03 6.16E-01 1.OOE-02 5.27E-01 1134 4.OOE-01 7.80E-03 1.54E+00 3.OOE-02 1.32E+00 1135 1.70E-01 2.80E-03 6.54E-01 1.08E-02 5.60E-01 Cs134 8.50E-05 8.50E-08 3.27E-04 3.27E-07 2.79E-04 Cs136 5.50E-05 5.50E-08 2.12E-04 2.12E-07 1.81E-04 Cs137 2.20E-04 2.20E-07 8.46E-04 8.46E-07 7.23E-04 Csl38 1.60E-01 1.60E-04 6.16E-01 6.16E-04 5.26E-01 Kr83m 0.OOE+00 6.40E-03 O.OOE+00 2.46E-02 3.59E-03 Kr85m 0.00E+00 1.10E-02 O.OOE+00 4.23E-02 6.18E-03 Kr85 0.OOE+00 3.50E-05 O.OOE+00 1.35E-04 1.97E-05 Kr87 O.OOE+00 3.90E-02 O.OOE+00 1.50E-01 2.19E-02 Kr88 0.OOE+00 3.90E-02 0.OOE+00 1.50E-01 2.19E-02 Xel3lm 0.00E+00 2.80E-05 O.OOE+00 *1.08E-04 1.57E-05 Xel33m O.OOE+00 5.30E-04 0.OOE+00 2.04E-03 2.98E-04 Xe133 0.OOE+00 1.50E-02 0.OOE+00 5.77E-02 8.43E-03 Xel35m O.OOE+00 5.00E-02 O.OOE+00 1.92E-01 2.81E-02 Xe135 O.OOE+00 4-20E-02 O.OOE+00 1.62E-01 2.36E-02 X138 O.OOE+00 1.60E-01 O.OOE+00 6.16E-01 8.99E-02*Weighted average values were calculated using the following: [(1-0.146)*( uCi/gm)Reactor Coolan] + [(0.146)*( uCi/gm)Main Steam] ENGJNEERINGSERVICES CALCULATION CONTINUATION SHEET Page 13 (Next 14 _)Project: Nine Mile Point Nuclear Station Unit: 2 N Disposition: -Originator/Date Reviewer/Date Calculation No. Revision M. Berg 5/29/07 H. Pustulka 5/29/07 H21C-101 0 Ref.Table 4a through 4c are the MSLB specific spreadsheet using the methodology in Appendix A to determine doses at the offsite and control room locations. The spreadsheet inputs are described below.Scaling Factors (Rows 4, 5 & 6): Scaling Factor 1 is the mass of coolant in grams, used to convert the core inventory concentration to total activity. Scaling Factor 2 is the multiplier on the coolant DE 1131 activity, (It should be noted that using a multiplying factor of 20, the dose results are for 4 gCi/gm 1131 DE), and Scaling Factor 3 is the conversion between Ci and uCi.DF (Row 7)The DF's are set to unity for this analysis.Source in Ci/MW(t) (column 2): The weighted average uCi/gm values from Table 3 were used.The negligible amounts of Rb86, Kr89, Organic Iodine, and Xe137 were set to zero in this table.Nuclide Specific Scaling Factor (column 3): The Nuclide Specific Scaling Factor for noble gases in this calculation are set to 0.05. This value compensates for the short term spiking multiplier of 20, (scaling factor 2) which noble gas is not subject to. All other nuclide specific scaling factors are set to unity. ENGINEERING SERVICES CALCULATION CONTINUATION SHEET Page 14 (Next 15 .)Project: Nine Mile Point Nuclear Station Unit: 2 Disposition: __OriginatodDate Reviewer/Date Calculation No. Revision M. Berg 5/29/07 H. Pustulka 5/29/07 H21C-101 0 Ref.Table 4a: U1 MSLB to U2 Control Room Dose Calculation NMP1 MSLB/U2 CR EAB LPZ CR Dispersion (X/Qs) = 1.90E-04 1.63E-05 1.31E-04 sec/m3 CR Vol = 2.02E+05 ft3 w/ finite volume gamma correction = 0.052955 Scaling Factor 1 = 4.86E+07 Mass of Coolant in Grams Scaling Factor 2 = 20 Multiplier on Tech Spec Activity Scaling Factor 3 = 1.00E-06 Ci/uCi DF for Alkali Metals DF for Elemental I = 1 = I Nuclide- WB CEDE TEDE CR EAB LPZ CR Source: Specific DCF DCF DCF DCF TEDE TEDE TEDE Units >> uCi/g Scaling rem-m3 rem/Ci rem-m3 rem-m3 rem rem rem Nuclide Factor Ci-sec Ci-sec Ci-sec Kr83m 0.011927 0.05 5.55E-06 0 5.55E-06 2.94E-07 6.11E-10 5.24E-11 2.23E-11 Kr85m 0.02097 0.05 0.0277 0 0.0277 0.001467 5.36E-06 4.60E-07 1.96E-07 Kr85 6.55E-05 0.05 0.00044 0 0.00044 2.33E-05 2.66E-10 2.28E-11 9.72E-12 Kr87 0.072086 0.05 0.152 0 0.152 0.008049 1.01E-04 8.68E-06 3.69E-06 Kr88 0.072086 0.05 0.501 8.36E+01 0.53026 0.055791 3.53E-04 3.03E-05 2.56E-05 Kr89 0 0.05 0.323 0 0.323 0.017105 0.OOE+00 0.OOE+00 0.OOE+00 Xel3lm 5.11E-05 0.05 0.00144 0 0.00144 7.63E-05 6.79E-10 5.83E-11 2.48E-11 Xel33m 0.000983 0.05 0.00507 0 0.00507 0.000268 4.60E-08 3.95E-09 1.68E-09 Xe133 0.027524 0.05 0.00577 0 0.00577 0.000306 1.47E-06 1.26E-07 5.35E-08 Xel35m 0.091746 0.05 0.0755 0 0.0755 0.003998 6.39E-05 5.48E-06 2.33E-06 Xe135 0.078639 0.05 0.044 0 0.044 0.00233 3.19E-05 2.74E-06 1.17E-06 Xe137 0 0.05 0.0303 0 0.0303 0.001605 0.OOE+00 0,OOE+00 0.OOE+00 Xe138 0.30145 0.05 0.213 0 0.213 0.01128 5.93E-04 5.08E-05 2.16E-05 I131Org 0 1 0.0673 3.29E+04 11.5823 11.51856 0.OOE+00 0,OOE+00 0.OOE+00 11320rg 0 1 0.414 3.81E+02 0.54735 0.155274 0.OOE+00 0.OOE+00 0.OOE+00 I1330rg 0 1 0.109 5.85E+03 2.1565 2.053272 0.OOE+00 0.OOE+00 0.00E+00 11 3 4 0rg 0 1 0.481 1.3 1E+02 5.27E-01 0.071322 0.OOE+00 0.OOE+00 0.OOE+00 I135Org 0 1 0.307 1.23E+03 0.7375 0.446757 0.OOE+00 0.OOE+00 0.OOE+00 I131Elem 0.034883 1 0.0673 3.29E+04 11.5823 11.51856 7.46E-02 6.40E-03 5.11E-02 I132Elem 0.648711 1 0.414 3.81E+02 0.54735 0.155274 6.55E-02 5.62E-03 1.28E-02 I133Elem 0.486664 1 0.109 5.85E+03 2.1565 2.053272 1.94E-01 1.66E-02 1.27E-01 I134Elem 1.177687 1 0.481 1.31E+02 0.52685 0.071322 1.15E-01 9.83E-03 1.07E-02 I135Elem 0.486795 1 0.307 1.23E+03 7.38E-01 0.446757 6.63E-02 5.69E-03 2.77E-02 Rb86 0 1 0.0178 6.62E+03 2.3348 2.317943 0.OOE+00 0.OOE+00 0.OOE+00 Cs134 0.000226 1 0.28 4.63E+04 16.485 16.21983 6.88E-04 5.90E-05 4.67E-04 Cs136 0.000149 1 0.392 7.33E+03 2.9575 2.586259 8.15E-05 6.99E-06 4.92E-05 Cs!37 0.000605 1 0.101 3.19E+04 11.266 11.17035 1.26E-03 1.08E-04 8.61E-04 Cs138 0.12512 1 0.4255 1.15E+02 0.465904 0.062937 1.08E-02 9.23E-04 1.00E-03 Tot TEDE = 5.29E-01 4.53E-02 2.32E-01 ENGINEERING SERVICES CALCULATION CONTINUATION SHEET Page 15 (Next 16-)Project. Nine Mile Point Nuclear Station Unit: _2_ Disposition: Originator/Date Reviewer/Date T Calculatbon No. Revision M. Berg 5/29/07 H. Pustulka 5/29/07 H21C-101 0 rTable 4b: U2 MSLB to U1 Control Room Dose Calculation NMP2 MSLB/U1 CR EAB LPZ CR Dispersion (X/Qs) = 1.19E-04 1.62E-05 1.90E-04 sec/m3 CR Vol = 135000 ft3 w/ finite volume gamma correction = 0.046212 Scaling Factor 1 = 4.85E+07 Mass of Coolant in Grams Scaling Factor 2 = 20 Multiplier on Tech Spec Activity Scaling Factor 3 = .00E-06 Ci/uCi DF for Alkali Metals DF for Elemental I = 1 = 1 Source: Units >> uCi/g Nuclide Kr83m 0.003595 Kr85m 0.006178 Kr85 1.97E-05 Kr87 0.021906 Kr88 0.021906 Kr89 0 Xel3lm 1.57E-05 Xel33m 0.000298 Xel33 0.008425 Xel35m 0.028084 Xe135 0.023591 Xe137 0 Xe138 0.089869 I131Org 0 I1320rg 0 11330rg 0 11340rg 0 I135Org 0 I131Elem 0.042857 132Elem 0.724653 I133Elem 0.527133 I134Elem 1.318562 I135Elem 0.5601 Rb86 0 Cs134 0.000279 Cs136 0.000181 Cs137 0.000723 Cs138 0.525762 Nuclide-Specific Scaling Factor 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 1 WB DCF rem-m3 Ci-sec 5.55E-06 0.0277 0.00044 0.152 0.501 0.323 0.00144 0.00507 0.00577 0.0755 0.044 0.0303 0.213 0.0673 0.414 0.109 0.481 0.307 0.0673 0.414 0.109 0.481 0.307 0.0178 0.28 0.392 0.101 0.4255 CEDE DCF rem/Ci 0 0 0 0 8.36E+01 0 0 0 0 0 0 0 0 3.29E+04 3.8 1E+02 5.85E+03 1.31E+02 1.23E+03 3.29E+04 3.81E+02 5.85E+03 1.3 1E+02 1.23E+03 6.62E+03 4.63E+04 7.33E+03 3.19E+04 1.15E+02 TEDE DCF rem-m3 Ci-sec 5.55E-06 0.0277 0.00044 0.152 0.53026 0.323 0.00144 0.00507 0.00577 0.0755 0.044 0.0303 0.213 11.5823 0.54735 2.1565 5.27E-01 0.7375 11.5823 0.54735 2.1565 0.52685 7.38E-01 2.3348 16.485 2.9575 11.266 0.465904 CR DCF rem-m3 Ci-sec 2.56E-07 0.00128 2.03E-05 0.007024 0.052412 0.014926 6.65E-05 0.000234 0.000267 0.003489 0.002033 0.0014 0.009843 11.51811 0.152482 2.052537 0.068078 0.444687 11.51811 0.152482 2.052537 0.068078 0.444687 2.317823 16.21794 2.583615 11.16967 0.060067 Tot TEDE =EAB TEDE rem 1.15E-10 9.88E-07 4.99E- 11 1.92E-05 6.70E-05 0.OOE+00 1.31E-10 8.71E-09 2.8 1E-07 1.22E-05 5.99E-06 0.OOE+00 1.1OE-04 0.OOE+00 0.OOE+00 0.OOE+00 0.OOE+00 0.OOE+00 5.73E-02 4.58E-02 1.3 IE-O1 8.02E-02 4.77E-02 0.OOE+00 5.3 1E-04 6.17E-05 9.40E-04 2.83E-02 3.92E-01 LPZ TEDE rem 1.57E-11 1.34E-07 6.80E-12 2.62E-06 9.13E-06 0.OOE+00 1.78E-11 1.19E-09 3.82E-08 1.67E-06 8.16E-07 0.OOE+00 1.50E-05 0.00E+00 0.00E+00 0.OOE+00 0.OOE+00 0.OOE+00 7.80E-03 6.23E-03 1.79E-02 1.09E-02 6.49E-03 0.OOE+00 7.24E-05 8.40E-06 1.28E-04 3.85E-03 5.34E-02 CR TEDE rem 8.50E-12 7.29E-08 3.68E-12 1.42E-06 1.06E-05 0.OOE+00 9.64E-12 6.43E-10 2.07E-08 9.03E-07 4.42E-07 0.OOE+00 8.15E-06 0.OOE+00 0.OOE+00 0.OOE+00 0.OOE+00 0.OOE+00 9.1OE-02 2.04E-02 1.99E-01 1.65E-02 4.59E-02 0.OOE+00 8.35E-04 8.61E-05 1.49E-03 5.82E-03 3.8 1E-01 ENGINEERING SERVICES CALCULATION CONTINUATION SHEET Page 16 (Next 17-)Project: Nine Mile Point Nuclear Station Unit: 2 Disposition: Originator/Date Reviewer/Date Calculation No. Revision M. Berg 5/29/07 H. Pustulka 5/29/07 H21 C-1 01 0 Ref.Table 4c: U2 MSLB to U2 Control Room Dose Calculation NMP2 MSLBIU2 CR EAB LPZ CR Dispersion (X/Qs) = 1.1 9E-04 1.62E-05 1.47E-03 sec/m3 CR Vol = 2.02E+05 ft3 w/ finite volume gamma correction = 0.052955 Scaling Factor 1 = 4.85E+07 Mass of Coolant in Grams Scaling Factor 2 = 20 Multiplier on Tech Spec Activity Scaling Factor 3 = 1.OOE-06 Ci/uCi DF for Alkali Metals DF for ElementalI I = I1 Source: Units >> uCi/g Nuclide Kr83m 0.00359 Kr85m 0.00618 Kr85 2E-05 Kr87 0.02191 Kr88 0.02191 Kr89 0 Xel3lm 1.6E-05 Xel33m 0.0003 Xe133 0.00843 Xel35m 0.02808 Xel35 0.02359 Xe137 0 Xe138 0.08987 I131Org 0 11320rg 0 I1330rg 0 11340rg 0 l135Org 0 I131Elem 0.04286 I132Elem 0.72465 I133Elem 0.52713 I134Elem 1.31856 I135Elem 0.5601 Rb86 0 Cs134 0.00028 Cs136 0.00018 Cs137 0.00072 Cs138 0.52576 Nuclide-Specific Scaling Factor 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 1 1 1 WB DCF rem-m3 Ci-sec 5.55E-06 0.0277 0.00044 0.152 0.501 0.323 0.00144 0.00507 0.00577 0.0755 0.044 0.0303 0.213 0.0673 0.414 0.109 0.481 0.307 0.0673 0.414 0.109 0.481 0.307 0.0178 0.28 0.392 0.101 0.4255 CEDE DCF rem/Ci 0 0 0 0 8.36E+01 0 0 0 0 0 0 0 0 3.29E+04 3.8 1E+02 5.85E+03 1.31 E+02 1.23E+03 3.29E+04 3.8 1E+02 5.85E+03 1.3 1E+02 1.23E+03 6.62E+03 4.63E+04 7.33E+03 3.19E+04 1.15E+02 TEDE DCF rem-m3 Ci-sec 5.55E-06 0.0277 0.00044 0.152 0.53026 0.323 0.00144 0.00507 0.00577 0.0755 0.044 0.0303 0.213 11.5823 0.54735 2.1565 5.27E-01 0.7375 11.5823 0.54735 2.1565 0.52685 7.38E-01 2.3348 16.485 2.9575 11.266 0.465904 CR DCF rem-m3 Ci-sec 2.94E-07 0.001467 2.33E-05 0.008049 0.055791 0.017105 7.63E-05 0.000268 0.000306 0.003998 0.00233 0.001605 0.01128 11.51856 0.155274 S2.053272 0.071322 0.446757 11.51856 0.155274 2.053272 0.071322 0.446757 2.317943 16.21983 2.586259 11.17035 0.062937 Tot TEDE =EAB TEDE rem 1.15E-10 9.88E-07 4.99E- 1I 1.92E-05 6.70E-05 0.OOE+00 1.31E-10 8.71E-09 2.81E-07 1.22E-05 5.99E-06 0.OOE+00 1. 1 OE-04 0.OOE+00 0.OOE+00 0.OOE+00 0.OOE+00 0.OOE+00 5.73E-02 4.58E-02 1.31E-01 8.02E-02 4.77E-02 0.OOE+00 5.3 1E-04 6.17E-05 9.40E-04 2.83E-02 3.92E-01 LPZ TEDE rem 1.57E-1 1 1.34E-07 6.80E-12 2.62E-06 9.13E-06 0.OOE+00 1.78E- 11 1.19E-09 3.82E-08 1.67E-06 8.16E-07 0.OOE+00 1.50E-05 0.OOE+00 0.OOE+00 0.OOE+00 0.OOE+00 0.OOE+00 7.80E-03 6.23E-03 1.79E-02 1.09E-02 6.49E-03 0.OOE+00 7.24E-05 8.40E-06 1.28E-04 3.85E-03 5.34E-02 CR TEDE rem 7.53E-1 I 6.46E-07 3.27E-I 1 1.26E-05 8.71E-05 0.OOE+00 8.55E- 11 5.70E-09 1.84E-07 8.01E-06 3.92E-06 0.OOE+00 7.23E-05 0.OOE+00 0.OOE+00 0.OOE+00 0.OOE+00 0.OOE+00 7.04E-01 1.60E-01 1.54E+00 1.34E-01 3.57E-01 0.OOE+00 6.46E-03 6.66E-04 1.15E-02 4.72E-02 2.96E+00 ENGINEERING SERVICES CALCULATION CONTINUATION SHEET Page (Next -Al)Project: Nine Mile Point Nuclear Station Unit: Disposition: Orginator/Date Reviewer/Date Calculation No. Revision M. Berg 5/29/07 H. Pustulka 5/29/07 H21C-101 0 Ref.Conclusions The TEDE doses resulting from a design basis Main Steam Line Break (MSLB) at Nine Mile Point Unit 2 analyzed using the alternative source term assumptions as given in Regulatory Guide 1.183 [Ref 1] are found to be well below the accepted limit. The limiting Control Room dose is the Unit 2 MSLB affecting the Unit 2 Control Room. ia ENGINEERING SERVICES CALCULATION CONTINUATION SHEET Page Al (Next A2)Project. Nine Mile Point Nuclear Station Unit: 2 Disposition: __Originator/Date Reviewer/Date Calculation No. Revision M. Berg 5/29/07 ,H. Pustulka 5/29/07 H21C-101 0 Ref.Appendix A A Spreadsheet for the Calculation of Offsite and Control Room Doses BackgroundlMethodology It is desirable for simplicity in many cases to calculate a bounding radiation dose for a given accident using several basic assumptions. These are as follows: o It is assumed that the release of activity may be defined at the outset (i.e., there are no time-dependent mechanisms that modify the amount of activity that's released; e.g., no delayed filtration or holdup).o It is assumed that the release is instantaneous and complete, and the transport to the receptor is instantaneous, as well. Therefore, no radioactive decay needs to be considered. Note that the activity release, A, may, in fact, occur over a given time duration, t, at a rate A/t. As long as the exposure time is equal to duration of the release, time cancels out of the integrated dose analysis.o It is assumed that the release is limited to coolant and/or gap activity (i.e., only a limited number of radionuclides are included in the sheet).o It is assumed that the chemical/physical form of the iodine as it is released is limited to organic and elemental. o No credit for control room emergency ventilation (i.e., filtration) is assumed.o It is assumed that the atmospheric dispersion for the duration of the release may be characterized by a single value of X/Q for each location (EAB, LPZ, and control room).o It is assumed that the exchange rate of the control room with the environment is infinite so that the concentration of activity inside the control room is equal to that in the atmosphere. o It is assumed that the breathing rate of exposed individuals is a constant 3.5E-4 m 3/sec.Effectively, this means the release actually must occur over a period of no more than eight hours in order for the LPZ dose not to be overstated. o It is assumed that the control room occupancy factor is unity.In addition, for the spreadsheet to be consistent with Reference 1, Dose Conversion Factors (DCFs)based on References 2 and 3 must be used. These are taken from the default TID.INP and FGR60.INP default files of Reference

4. Breathing rates and occupancy factors are taken from Reference 1.The following section describes the development of such an Excel spreadsheet.

191 ENGINEERING SERVICES CALCULATION CONTINUATION SHEET Page A2 (Next A3)Project.- Nine Mile Point Nuclear Station Unit: 2 Disposition: Originator/Date Reviewer/Date Calculation No. Revision M. Berg 5/29/07 H. Pustulka 5/29/07 H21C-101 0 Ref.Spreadsheet Development The spreadsheet is displayed at the end of this section, just before the references. At the top of the spreadsheet (in the first row) is the title. An example might be "NMP1 MSLB". In the second row may be found the EAB, LPZ, and control room X/Qs in units of seconds/m 3.The control room volume in ft 3 is given in the third column. It is included to provide the basis for the finite volume correction factor for gamma shine dose provided by Reference 1 (calculated to the right of the control room volume).The next three rows provide scaling factors that apply equally to all of the radionuclides listed and to all of the calculated doses (EAB, LPZ, and control room). For example, in an FHA analysis, if the core-wide activity available for release is expressed as Ci/MWt, one scaling factor may be the power of the core, a second may be the peaking factor to account for the fact that the specific activity in the affected fuel bundles may be greater than the core average, and the third may be the fraction of the core's activity that is released from the damaged bundles (i.e., the fraction of the core activity assumed to be in the gap multiplied by the fraction of the core fuel bundles that are damaged by the drop). Space is available next to each scaling factor to annotate what each value represents. DFs are specifically provided in the next row after the scaling factors. One DF is provided for elemental iodine and one for alkali metals (i.e., Cs and Rb).The "Source" column (i.e., the second column) has already been mentioned. One space is provided under "Source" to identify the units of "Source". For each of the coolant and/or gap release radionuclides identified in the first column, a "Source" entry may be made.In the third column, there is a place for scaling factors unique to individual radionuclides. For example, gap fractions that differ from the general gap fraction may be accommodated using these radionuclide-specific scaling factors. If the 1-131 gap fraction is 8% vs. the general value of 5%, then the "Source" for 1-131 would have to be increased by a factor of 1.6 to account for that difference. That factor may be entered in the third column.In the fourth column, the DCFs for immersion dose are provided. As noted previously, these are taken from Reference 4 TID.INP and FGR60.INP with the multiplication of "Cloudshine-Effective" by 3.7E12 to convert Sv-m 3/Bq-sec to rem-m 3/Ci-sec. In the fifth column, the "Inhaled-Chronic-Effective" values from FGR60.INP have been multiplied by the same 3.7E 12 to convert Sv/Bq to rem/Ci. Note that these DCFs include short-lived decay daughters as long as (1) the daughter has a half-life less than 90 minutes and (2) the daughter has a half-life less than 0.1 times the parent. One exception has been made to this rule. Because of its importance as a decay daughter, the DCFs for Rb-88 have been added to those for Kr-88 even though the half-life of Rb-88 (17.8 minutes) is slightly greater than 10% of its parent Kr-88 (170.4 minutes). ENGINEERING SERVICES CALCULATION CONTINUATION SHEET Page A3 1 (Next _A4-)Project: Nine Mile Point Nuclear Station Unit: 2 Disposition: Originator/Date Reviewer/Date Calculation No. Revision M. Berg 5/29/07 H. Pustulka 5/29/07 H21C-101 0 Ref.In the sixth column, a TEDE DCF is prepared which is the sum of the immersion DCF and the inhalation DCF times the assumed breathing rate of 3.5E-4 m 3/sec.In the seventh column, a control room DCF is defined which is similar to the TEDE DCF. However, the immersion DSF is diminished by the finite volume correction factor defined as the following in Reference 1: DDE.07.1 DDEffnite = 17 For a control room volume of 135,000 ft3, for example, the factor is 0.0462. Note that this factor appears next to the control room volume at the top of the spreadsheet. It is -unity for a control room volume of 1.2E9 ft 3.The eighth column is the EAB dose, the product of Columns 2, 3, and 6, the three general scaling factors, and the EAB X/Q. Note that if a release of the activity, A, in Column 2 occurs over time, t, the release rate is A/t assuming a unit scaling factor in Column 3. When multiplied by the X/Q, the product is the concentration present at the X/Q location for the time, t (i.e., for the duration of the release). When multiplied by the DCF (Column 6) in units of rem-volume/Ci-time, the result is a dose rate for the duration, t. As long as it is assumed that the exposure duration, t', is the same as release duration, t, then the immersion + inhalation dose is simply the product as just described. In the last row of Column 8, the EAB dose is summed for all radionuclides in Column 1. Note that in calculating the EAB dose, the elemental iodine dose is reduced by the DF for elemental iodine and the alkali metal dose is reduced by the DF for alkali metals.In Column 9, the Column 8 results are adjusted by the ratio of the LPZ X/Q to the EAB X/Q to obtain the LPZ dose.Finally, in Column 10, the Column 8 results are adjusted by the ratio of the control room X/Q to the EAB X/Q and by the ratio of the control room DCF to the TEDE DCF to obtain the control room dose contribution for each radionuclide. As with the EAB and the LPZ doses, these are summed at the bottom of column to obtain the total control room TEDE. {ENGINEERING SER .VICES CALCULATION CONTINUATION SHEET Page A4 (Next A5_)Project: Nine Mile Point Nuclear Station Unit: 2 Disposition: __Originator/Date Reviewer/Date Calculation No. Revision M. Berg 5/29/07 H. Pustulka 5/29/07 H21C-101 0 ef.Spreadsheet for Simplified Dose Evaluation TITLE EAB LPZ CR Dispersion (X/Qs) x.xxE-xx x.xxE-xx x.xxE-xx sec/m3 CR Vol = 1.20E+09 ft3 w/ finite volume gamma correction = 0.999 Scaling Factor 1 = 1 Scaling Factor 2 = 1 Scaling Factor 3 = 1 DF for Elemental I = I DF for Alkali Metals -Nuclide- WB CEDE TEDE CR EAB LPZ CR Source: Specific DCF DCF DCF DCF TEDE TEDE TEDE Units >> Scaling rem-m3 rem/Ci rem-m3 rem-m3 rem rem rem Nuclide Factor Ci-sec Ci-sec Ci-sec Kr83m 0 1 5.55E-06 0 5.55E-06 5.54E-06 0.00E+00 0.OOE+00 0.OOE+00 Kr85m 0 1 0.0277 0 0.0277 0.027666 0.OOE+00 0.OOE+00 0.00E+00 Kr85 0 1 0.00044 0 0.00044 0.000439 0.OOE+00 0.OOE+00 0.OOE+00 Kr87 0 1 0.152 0 0.152 0.151813 0.OOE+00 0.OOE+00 0.OOE+00 Kr88 0 1 0.501 8.36E+01 0.53026 0.529643 0.OOE+00 0.OOE+00 0.OOE+00 Kr89 0 1 0.323 0 0.323 0.322603 0.OOE+00 0.OOE+00 0.OOE+00 Xel3lm 0 1 0.00144 0 0.00144 0.001438 0.00E+00 0.OOE+00 0.OOE+00 Xe133m 0 1 0.00507 0 0.00507 0.005064 0.OOE+00 0.OOE+00 0.OOE+00 Xel33 0 1 0.00577 0 0.00577 0.005763 0.00E+00 0.OOE+00 0.OOE+00 Xe135m 0 1 0.0755 0 0.0755 0.075407 0.OOE+00 0,OOE+00 0.OOE+00 Xe135 0 1 0.044 0 0.044 0.043946 0.OOE+00 0.OOE+00 0.OOE+00 Xel37 0 1 0.0303 0 0.0303 0.030263 0.OOE+00 0.OOE+00 0.00E+00 Xe138 0 1 0.213 0 0.213 0.212738 0.OOE+00 0.OOE+00 0.OOE+00 I131Org 0 1 0.0673 3.29E+04 11.5823 11.58222 0.OOE+00 0.OOE+00 0.OOE+00 11320rg 0 1 0.414 3.81E+02 0.54735 0.546841 0.00E+00 0.OOE+00 0.OOE+00 11330rg 0 1 0.109 5.85E+03 2.1565 2.156366 0.00E+00 0.OOE+00 0.OOE+00 11340rg 0 1 0.481 1.31E+02 5.27E-01 0.526258 0.OOE+00 0.00E+00 0.OOE+00 11350rg 0 1 0.307 1.23E+03 0.7375 0.737122 0.OOE+00 0.OOE+00 0.OOE+00 1131EElem 0 1 0.0673 3.29E+04 11.5823 11.58222 0.OOE+00 0.OOE+00 0.00E+00 II32Elem 0 1 0.414 3.81E+02 0.54735 0.546841 0.00E+00 0.OOE+00 0.OOE+00 1133Elem 0 1 0.109 5.85E+03 2.1565 2.156366 0.OOE+00 0.OOE+00 0.OOE+00 l134Elem 0 1 0,481 1.31E+02 0.52685 0.526258 0.OOE+00 0.OOE+00 0.OOE+00 I135Elem 0 1 0.307 1.23E+03 7.38E-01 0.737122 0.OOE+00 0.OOE+00 0.OOE+00 Rb86 0 1 0.0178 6.62E+03 2.3348 2.334778 0.00E+00 0.OOE+00 0.OOE+00 Cs134 0 1 0.28 4.63E+04 16.485 16.48466 0.OOE+00 0.OOE+00 0.OOE+00 Cs136 0 1 0.392 7.33E+03 2.9575 2.957018 0.OOE+00 0.OOE+00 0.OOE+00 Cs137 0 1 0.101 3.19E+04 11.266 11.26588 0.OOE+00 0.OOE+00 0.OOE+00 Cs138 0 1 0.4255 1.15E+02 0.465904 0.46538 0.OOE+00 0,O0E+00 0,O0E+00 Total TEDE 0.OOE+00 O.OOE+00 O.OOE+00 ENGINEERING SERVICES CALCULATION CONTINUATION SHEET Page __A5-(Next: Attachment 1)Project: Nine Mile Point Nuclear Station Unit: 2 Disposition: Originator/Date Reviewer/Date Calculation No. Revision M. Berg 5/29/07 H. Pustulka 5/29/07 H21C-101 0 Ref.References A-I Regulatory Guide 1.183, "Alternative Radiological Source Terms for Evaluating Design Basis Accidents at Nuclear Power Reactors", July 2000 A-2 K.F. Eckerman et al., "Limiting Values of Radionuclide Intake and Air Concentration and Dose Conversion Factors for Inhalation, Submersion, and Ingestion," Federal Guidance Report 11, EPA-520/1-88-020, Environmental Protection Agency, 1988.A-3 K.F. Eckerman and J.C. Ryman, "External Exposure to Radionuclides in Air, Water, and Soil," Federal Guidance Report 12, EPA-402-R-93-081, Environmental Protection Agency, 1993 A-4 NUREG/CR-6604, "RADTRAD: A Simplified Model for RADionuclide Transport and Removal And Dose Estimation", December 1997 Hjkc- ( (ý ýSATTAHMEN 1: 1 N bWERiEICtAIfld4kt~bk Document being design-verified: LI DCP [X]Calc CI Spec E3 NER [] DBD LI Other Doc#, Rev and Title: H21C-I01, Revision 0: U2 MSLB, AST Methodology Extent of Design Verification (Briefly describe): This calculation was design verified by 1) validating all input with respect to the input database makinq sure the appropriate input values were used: 2) validating that all assumptions are conservative and conform to RG 1.183 AST requirements:

3) validating the calculation methodology and calculation tools (i.e. spreadsheet) as being acceptable for the task; and 4) validating final results to make sure that they are as expected.

Additional check calculations were also performed. Method of Design Verification: [] Design Review LI Qualification Testing L Alternate Calculations LI Applicability of Proven Design Results of Design Verification: [] Fully acceptable with no issues identified LI Fully acceptable based on the following issues identified and resolved: All inputs used were found to be appropriate and assumptions were sound. No further assumptions were necessary. The use of a spreadsheet methodology was appropriate for this calculation. Resulting values conform to the expected results. Conservatism was built into this calculation (no credit for filters, infinite exchange between the Control Room and the environment, etc). Minor concerns were commented on and addressed before the final draft of the calculation was issued.LI Continuation Page Follows L-&'-4R NTAHMNT 1DSG VER~~IFIAION CHECLS The following questions are required to be addressed based on the Nine Mile Point commitment to NQA-1 (1983)for design verification activities. This checklist is intended to assist when using the Design Review method of design verification to ensure relevant items are addressed in the verification effort. Each "No" answer will require correction or resolution by the originator of the document being verified prior to full acceptance by the design verifier(s). Doc #: H21C-101 Lead Design Verifiers H. Pustulka Name: Items Addressed with Basis of Review Answer Revew CheckA-¥e~iiYes No N:IA/1. Were the inputs correctly selected ?x 2. Are assumptions necessary to perform the design activity adequately described and reasonable ? Where necessary, are the assumptions identified for subsequent re-verifications when the detailed activities are completed ?3. Was an appropriate design method used?x 4. Were the design inputs correctly incorporated into the design ?x 5. Is the design output reasonable compared to design inputs ?x 6. Are the necessary design input and verification requirements for interfacing organizations specified in the design documents or in supporting procedures or instructions? X}}