Text

IP-RPT-16-00078, RAI CLI-16-07 SAMA Cost-Benefit Sensitivities, Rev. 0 (Jan. 4, 2017)
	ML17040A435
Person / Time
Site:	Indian Point
Issue date:	01/04/2017
From:	Potts L; Entergy Nuclear Northeast
To:	; Office of Nuclear Reactor Regulation
References
	NL-17-002 IP-RPT-16-00078, Rev 0
	Download: ML17040A435 (87)
	v • d • e

ENCLOSURE 2 TO NL-17-002 ENTERGY ENGINEERING REPORT NO. IP-RPT-16-00078, "INDIAN POINT RAI CLl-16-07 SAMA COST-BENEFIT SENSITIVITIES,"

REV. 0 (JAN. 4, 2017)

~-

- --*-*****************--------~

Engineering Report No.

ENTERGY NUCLEAR Engineering Report Cover Sheet Engineering Report

Title:

lP-RPT-16-00078 Rev 0

Page l

of 36 lndian Point RA.I CLC-16-07 SA.\\1A Cost-Benefit Sensitivities lPI D Ai.'101 o EC No. 68462 New

[g}

lP2 IZI AN02 D

[ngineering Report Type:

Revision D Cancelled D

Superseded D

1P3 IZI ECH D Superseded by:

Applicable Site(s)

JAF D GGNS D Report Origin:

PNPS D RBS D VY D WF3 D D Entergy (gl Vendor Vendor Document No.:~

Quality-Related:

D Yes WPO D PLP D Prepared by:

Lori Ann Potts I ~*

~<M:.J Responsible Engineer (Print Name/Sign)

Date:

1-4-2017 Date: ----

Design Verified: __________

N_/._I\\ ________ _

Design Verifier (if required) ( 0 r'J11Jt1~~

Date:

I 2017 A d S tt Andrew Spotts n rew po s oate: 2011.01 o4 Andrew J. Spotts I 10:14'.04-os*oo*

Reviewed by:

Date:~

P-RPT-16-00078, Rev. 0 Page 1 of 86

Indian Point RAI CLl-16-07 SAMA Cost-Benefit Sensitivities I P-RPT-16-00078 Revision O Page 2 of 84 Revision Number Description I Initial Issue IP-RPT-16-00078, Rev. 0 REVISION DESCRIPTION SHEET Pages and/or Sections Revised Page 2 of 86

Indian Point RAI CLl-16-07 SAMA Cost-Benefit Sensitivities TABLE OF CONTENTS

iP-RPT-16-00078 Revision 0 Page 3 of 84 1.0 Purpose........................................................................................... ~.......................................... 4 2.0 Summary of Results.................................................................................................................... 5 3.0 References.................................... :.............................................................................. :............ 15 4.0 Assumptions.............................................................. :............. *................................................. 16 5.0 Evaluation of Potentially Cost-Beneficial SAMAs for the Sensitivity Cases... :....,....................... 17 5.1 MACCS2 Sensitivity Cases......................................................................................... *........... 17 5.2 Sensitivity Case O - Original Baseline.................................................................................... 18 I

5.3 Sensitivity Case 4-Revised Baseline (Escaiated VALWNF and VNFRM)............................ 20 5.4 Sensitivity Case 5-Revised TIMDEC and CDNFRM (with Escalated VALWNF and VNFRM)................................................................................................................................ 22 5.5 Sensitivity Case 7 -Alternate Revised Baseline (Escalated VALWNF and VNFRM and revised VDEPOS)................................................................................................................. 23 5.6 Sensitivity Case 8 -Alternate Revised TIMDEC and CDNFRM (with Escalated VALWNF and VNFRM and revised VDEPOS)...................................... :........................................... *.... 25 6.0 Conclus.ions.............................................................................................................................. 26 - List of Electronic Files................................................................................................. 83 IP-RPT-16-00078, Rev. 0 Page 3 of 86

Indian Point RAI CLl-16-07 SAMA Cost-Benefit Sensitivities IP-RPT-16-00078 Revision O Page 4 of 84 1.0 Purpose This report documents a revised baseline SAMA cost-benefit analysis and SAMA cost-benefit.

sensitivity cases that were performed to support the response to an NRC Staff Request for Additional Information {RAI) pertaining to the NRC Commission Decision CLl-16-07 for Indian Point Energy Center (IPEC).

On May 4, 2016, the Commission issued a decision (CLl-16-07) in the Indian Point Nuclear Generating Unit Nos 2 and 3 (IP2 and IP3) license renewal proceeding, in which it directed the NRC staff to supplement the IP2 and IP3 Severe Accident Mitigation Alternatives (SAMA) analysis with additional sensitivity analyses. Specifically, the Commission held that documentation was lacking for two inputs -

decontamination time (TIM DEC) and cost to decontaminate non-farmland (CDNFRM) - used in the MELCOR Accident Consequence Code (MACCS) computer analyses, and that uncertainties in those input values could potentially affect the SAMA analysis cost-benefit conclusions. The Commission therefore directed the NRC staff to perform additional sensitivity analyses. (Reference 1)

In an RAI letter dated September 12, 2016, the NRC staff requested the following additional information (Reference 2):

1. Entergy Nuclear Operations, Inc. (Entergy) is requested to scale up the value of nonfarm wealth (VALWNF) input to the SAMA analysis'* base-year dollars (see pp. 41-42 of CLl-16-07),

and to re-run its base analyses using this corrected VALWNF input. Entergy is requested to evaluate how the change in VALWNF may affect its identification of potentially cost-beneficial SAMAs.

2. Using the revised baseline from Request 1, Entergy is requested to run supplemental sensitivity analyses using the input values specified in CLl-16-07. Specifically:

a. Apply the maximum values specified by the Commission and allowed by the MACCS code for TIMDEC and CDNFRM values (one year (365 days) and $100,000, respectively) for "heavy decontamination" (i.e., the decontamination/dose reduction factor of 15).

b. Exercise the additional option to explain, with sufficient justification, its rationale for choosing any additional values for the TIMDEC and CDNFRM inputs for its sensitivity analyses.

Entergy at a minimum should run its sensitivity analyses for the four worst release categories, as specified in CLl-16-07. Entergy is requested to evaluate how these sensitivity analyses may affect its identification of potentially cost-beneficial SAMAs.

3. Upon completing these additional analyses, Entergy is requested to submit the input and output files for the IP2 and IP3 MACCS code. Additionally, Entergy is requested to submit the spreadsheet (or equivalent table if another method is used) that conveys the population dose and off-site economic cost for each release category and integrates the results into a Population Dose Risk and an Offsite Economic Cost Risk for IP2 and IP3.

IP-RPT-16-00078, Rev. 0 Page 4 of 86

Indian Point RAI CLl-16-07 SAMA Cost-Benefit Sensitivities 2.0 Summary of Results IP-RPT-16-00078 Revision 0 Page 5 of 84 The results of this analysis provide the following information requested in the RAI letter dated September 12, 2016 (Reference 2).

Response to RAI 1:

Entergy Nuclear Operations, Inc. (Entergy) scaled up the value of nonfarm wealth (VALWNF) input to the SAMA analysis' base-year (2005) dollars (Reference 4). VALWNF is used in the CHRONC input file and represents an average value for the 50 mile region.

Original (without lost tourism/business) VALWNF = $163,631/person. This was develop~d using SECPOP2000 and its economic database from the 1997 Census of Agriculture.

Original VALWNF with lost tourism I business= $208,838/person. The lost tourism I business component.is based on 2004 data. The lost tourism/business component is $45,207/person.

Consumer Price Index Values (Series CUUROOOOSAO, All Urban Consumers) are used for escalation purposes:

Annual 1997 CPI = 160.5 Annual 2004 CPI = 188.9 Annual 2005 CPI = 195.3 Escalation Factor 1997-2005 = 1.22 Escalation Factor 2004-2005 = 1.03 2005 VALWNF is calculated as follows:

VALWNF without lost tourism/business= $163,631/person

1.22 = $199,630/person Lost tourism I business component= $45,207/person

1.03 = $46,563/person Total with lost tourism/ business (2005 dollars)= $246, 193/person, rounded up to

$24 7,000/person Entergy also scaled up the individual county average VNFRM values of nonfarm wealth used in the SITE input file. The same approach and CPI escalation values developed for the VALWNF calculation are applied at the county level data. The values for each county are shown in Table 1 (Reference 4).

IP-RPT-16-00078, Rev. 0 Page 5 of 86

Indian Point RAI CLl-16-07 SAMA Cost-Benefit Sensitivities Table 1-Original and Escalated VNFRM County-Level Values Basis Year for Dollar Values:

1997 1997,2004 Original Original No With I

Tourism Tourism I

Tourism VNFRM VNFRM Portion Region County

($)

1 FAIRFIELD 232659 287881 55222 2

BERGEN 205863 262186 56323 3

LITCHFIELD 148522 186016 I 37494 4

NEWHAVEN 144105 192427 48322 5

ESSEX 147351 197400 I 50049 6

DUTCHESS 129000 169417 I 40417 7

MORRIS 213389 277661 64272 1

8 PASSAIC 121880 161864 39984 9

SUSSEX 136197 165741 29544 10 UNION 160860 209708 I 48848 11 KINGS 104714 I

I I I I P-RPT-16-00078 Revision 0 Page 6 of 84 2005 With Tourism VNFRM

($)

340723 309166 219816 225580 231319 199010 326535 189877 196591 246563 147308 123701.L 18987 12 NASSAU 192755 239932 I

47177 283753 13 ORANGE 113976 I

148873 34897 174995 14 PUTNAM 154926 180274 25348 215118 15 QUEENS 1

i 169126 226728 57602 265664 16 ROCKLAND 163105 203359 40254 240450 17 SUFFOLK 149615 192471 42856 226672 18 SULLIVAN 104859 139374 34515 163478 19 ULSTER 104090 138739 34649 162678 20 WESTCHESTER 217278 263389 46111 312573 1 The Queens economic region comprises four very small counties within New York city (New York, Hudson, Queens, Bronx counties) combined as a weighted average to be certain that economic information pertaining to New York City was included in the analysis. (Reference 9)

IP-RPT-16-00078, Rev. 0 Page 6 of 86

Indian Point RAI CLl-16-07 SAMA Cost-Benefit Sensitivities IP-RPT-16-00078 Revision O Page 7 of 84 Entergy re-ran the baseline analyses using the VALWNF and VNFRM values escalated to 2005 dollar values. Table 2 and Table 3 show the resulting Population Dose Risk (PDR) and Offsite Economic Risk (OECR) for the revised baseline. Comparison of these results to the baseline results in the 2009 analysis (Reference 3) shows a modest OECR increase of approximately 9-10% and no appreciable change in the PDR.

Table 2 - IP2 Escalated VALWNF and VNFRM MACCS2 Results2 I

Off site Off site I

Population Population PDR

. Economic Economic Release Frequency Dose Dose Risk

%of Cost Cost Risk Category i (per yr)

(p-rem)

(p-rem/yr)

Total

($)

($/yr)

H/E 6.50E-07 6.51E+07 4.23E+Ol 48.44%

2.27E+ll 1.48E+05 H/L I

6.88E-07 1.63E+07 1.12E+Ol 12.84%

5.04E+l0 3.47E+04 M/E 4.23E-07 1.94E+07 8.21E+OO 9.39%

6.36E+10 2.69E+04 M/L 3.43E-06 6.87E+06 2.36E+Ol I 26.98%

6.59E+09 2.26E+04 L/E 1.llE-07 7.94E+06 8.81E-01 1.01%

6.93E+09 7.69E+02

~

L/L 6.43E-07 1.61E+06 1.04E+OO I 1.19%

7.15E+08 4.60E+02 LL/L 5.82E-08 1.38E+06 8.03E-02 I 0.09% I 6.10E+08 3.55E+Ol I

NCF 1.19E-05 4.75E+03 5.65E-02 I 0.06%

1.07E+05 1.27E+OO Total 1.79E-05 8.74E+Ol I 100% I 2.33E+05 Table 3 - IP3 Escalated VALWNF and VNFRM MACCS2 Results3 Population Release Frequency Dose Category (per yr)

(p-rem)

H/E 9.43E-07 5.09E+07 H/L 4.23E-07 1.63E+07 M/E 1.24E-06 2.00E+07 M/L 2.0lE-06 6.85E+06 L/E 1.46E-07 5.21E+06

~ -------

L/L 3.75E-07 1.61E+06 2 Table 2E in IP-RPT-16-00077 (Reference 4) 3 Table 3E in IP-RPT-16-00077 (Reference 4)

IP-RPT-16-00078, Rev. 0 I

Off site Population I PDR Economic Dose Risk,

%of Cost (p-rem/yr) i Total

($)

I 4.80E+Ol 50.55%

1.86E+ll 6.89E+OO 7.26%

5.00E+lO 2.48E+Ol 26.12%

6.0lE+lO 1.38E+Ol 14.50%

6.59E+09 7.61E-01 0.80%

3.87E+09

-.. ------------------**--*-*-- -------*-----------r----------

6.04E-01 0.64% i 7.14E+08 Page 7 of 86 Off site Economic Cost Risk

($/yr) 1.75E+05 2.12E+04 7.45E+04 1.32E+04 5.65E+02 2.68E+02 OECR

% of Total 63.33%

14.88%

11.55%

I 9.70%

0.33%

0.20%

0.02%

0.00%

100%

I OECR

%of Total 61.50%

7.42%

26.13%

4.64%

0.20%

0.09%

Indian Point RAI CLl-16-07 SAMA Cost-Benefit Sensitivities I P-RPT-16-00078 Revision O Page 8 of 84 Table 3 - IP3 Escalated VALWNF and VNFRM MACCS2 Results3 I Offsite Offsite Population Population PDR Economic Economic OECR Release Freql.!ency Dose Dose Risk

%of Cost Cost Risk

%of Category (per yr)

(p-rem)

(p-rem/yr)

Total

($)

($/yr)

Total LL/L 5.66E-08 1.38E+06 7.81E-02 I 0.08%

6.10E+08 3.45E+Ol 0.01%

NCF 6.30E-06

8.04E+03 5.07E-02 0.05%

3.17E+05 2.00E+OO I

0.00%

Total l.15E-05 9.50E+Ol i

100%

2.85E+05 I 100%

The revised baseline with escalation of VALWNF and VNFRM resulted in one additional potentially cost-beneficial SAMA as shown below.

Revised Revised Phase II Description Baseline Baseline Estimated Cost SAMA Benefit With (NL-14-143)

Benefit Uncertainty 021-Install additional pressure IP2-021 or leak monitoring 2,216,549 4,666,419 4,632,227 instrumentation for ISLOCAs.

IP-RPT-16-00078, Rev. 0 Page 8 of 86

Indian Point RAI CLl-16-07 SAMA Cost-Benefit Sensitivities Response to RAI 2.a:

IP-RPT-16-00078 Revision O Page 9 of 84 Using the revised baseline from RAI 1, Entergy ran supplemental sensitivity analyses using the input values specified in CLl-16-07. Specifically, the maximum values specified by the Commission and allowed by the MACCS2 code for TIMDEC and CDNFRM values (one year (365 days) and $100,000, respectively) for "heavy decontamination" (i.e., the decontamination/dose reduction factor of 15) were applied. The parameter value changes are applied to all release categories for consistency, (i.e., not just the four worst release categories as spe<;:ified in the RAI.)

Table 4 and Table 5 show the PDR and OECR results when the TIMDEC and CDNFRM values are increased to the maximum MACCS2 allowed values as stipulated in the RAI, with the revised baseline.

Comparison of these results to the baseline results in the 2009 analysis (Reference 3) shows that the OECR increases approximately 126-133%. Also, the PDR increase is much smaller, approximately 11-12%.

Table 4 - IP2 Increased TIMDEC and CDNFRM (with Escalated VALWNF and VNFRM) MACCS2 Sensitivity Results4 Release Category*

H/E H/L M/E M/L Frequency (per yr) 6.50E-07 6.88E-07 4.23E-07 3.43E-06 Population Dose (p-rem) 7.90E+07 1.69E+07 2.06E+07 6.97E+06 i

Population !

Dose Risk i (p-rem/yr) I 5.14E+Ol 1.16E+Ol 8.71E+OO 2.39E+Ol PDR

%of Total 52.57% I 11.90%

8.92%

24.48%

Offsite Economic Cost

($)

5.03E+ll 8.56E+l0 1.25E+ll 1.09E+10 L/E l.llE-07 8.03E+06 8.91E-01 I 0.91%

1.12E+10 Offsite I Economic Cost Risk I

($/yr) 3.27E+05 I 5.89E+04 5.29E+04 3.74E+04 1.24E+03 OECR

% of Total 68.35%

12.31%

11.05%

7.82%

0.26%

___ L_/~-------- -----~:~~~~!. _____,_ __.~:-~~=~~~*---* *---.. -~-~~~-~-~~~----~--~~?.~.----- ____ 1.::~~-=~~=-....... -----=.:~==~~-:...... _

.... _. __ ~:~-~~----

LL/L 5.82E-08 1.39E+06 8.09E-02 I 0.08%

1.24E+09 7.22E+Ol 0.02%

NCF 1.19E-05 4.75E+03 5.65E-02 I 0.06%

1.07E+05 1.27E+OO.

0.00%

Total 1.79E-05 9.77E+Ol I 100%

1' i

4.78E+05 100%

4 Table 2F in IP-RPT-16-00077 (Reference 4)

IP-RPT-16-00078, Rev. 0 Page 9 of 86

Indian Point RAI CLl-16-07 SAMA Cost-Benefit Sensitivities I P-RPT-16-00078 Revision 0 Page 10 of 84 Table 5 - IP3 Increased TIMDEC and CDNFRM (with Escalated VALWNF and VNFRM) MACCS2 Sensitivity Results5 Release I Frequency Off site Offsite Population Population PDR Economic Economic OECR Dose Dose Risk

%of Cost Cost Risk

% of Category (per yr)

(p-rem)

(p-rem/yr)

Total *

($)

($/yr)

Total I

I H/E I 9.43E-07 5.95E+07 5.61E+Ol 53.42%

4.51E+ll 4.25E+05 69.93%

H/L I

4.23E-07 1.69E+07 7.15E+OO 6.81%

8.52E+10 3.60E+04 5.93%

I I M/E I

1.24E-06 2.12E+07 2.63E+Ol 25.03%

9.95E+l0 1.23E+05 I 20.29%

I I M/L I

2.0lE-06 6.95E+06 1.40E+Ol I 13.30%

1.09E+l0 2.19E+04 I 3.60%

L/E I

1.46E-07 I 5.30E+06 i

7.74E-01 0.74%

6.15E+09 8.98E+02 I 0.15%

L/L I 3.75E-07 1.63E+06 6.llE-01 0.58%

1.45E+09 5.44E+02 0.09%

LL/L I 5.66E-08 1.39E+06 7.87E-02 0.07%

1.24E+09 7.02E+Ol I 0.01%

NCF I

6.30E-06 8.04E+03 5.07E-02 0.05%

3.17E+05 2.00E+OO I 0.00%

Total i

1.15E-05 1.05E+02 i

100% I 6.08E+05 100%

Increasing the TIMDEC and CDNFRM values to the maximum MACCS2 allowed values as stipulated in the RAI, with the revised baseline, resulted in one additional potentially cost-beneficial SAMA as shown below.

Phase II Sensitivity Estimated Cost Description (IP-RPT SAMA Benefit 00044) 057 - Provide backup cooling IP3-057 water source for the CON heat 118.434 109.000 exchangers.

5 Table 3F in IP-RPT-16-00077 (Reference 4)

IP-RPT-16-00078, Rev. 0 Page 10 of 86

Indian Point RAI CLl-16-07 SAMA Cost-Benefit Sensitivities Response to RAI 2.b:

I P-RPT-16-00078 Revision O Page 11of84 RAI 2.b gives Entergy the additional option to explain, with sufficient justification, its rationale for choosing any additional values for the TIMDEC and CDNFRM inputs for its sensitivity analyses.

Entergy does not propose additional values for the TIMDEC and CDNFRM inpµts. However, Entergy does propose an alternate value for variable VDEPOS, dry deposition velocity.

In Entergy's original SAMA analysis, the dry deposition velocity, VDEPOS, was set to 0.010 m/sec in the ATMOS input file. The recent NRC's State-of-the-Art Reactor Consequence Analyses (SOARCA)

Project fou.nd a value of 0.003m/sec to be the dominant or average value for use in SOARCA. Thus, 0.003m/sec is viewed as more representative than the value of 0.010m/sec used in the NUREG-1150 studies.

Entergy ran an alternative revised baseline using the VALWNF and VNFRM values escalated to 2005 dollar values, as described in the response to RAI 1, but with a VDEPOS value of 0.003m/sec (Reference 4). Table 6 and Table 7 show the resulting PDR and OECR for the alternative revised baseline. Comparison of these results to those in Table 2 and Table 3 shows that the lower deposition velocity more than offsets the increase associated with escalating the value of non-farm wealth to 2005 values. Comparison of these results to the baseline results in the 2009 analysis (Reterence 3) shows that the OECR decreases between 10-17% compared to the SAMA basecase. The PDR value changes a small amount (2.5% decrease for IP-2; 1.8% increase for IP-3).

Table 6 - IP2 Escalated VALWNF and VNFRM and Revised VDEPOS NiACCS2 Results6 Offsite Offsite

. Release Population Population PDR Economic Economic OECR Category Frequency Dose Dose Risk o/oof Cost Cost Risk

%of (per yr)

(p-rem)

(p-rem/yr)

Total

($)

($/yr)

Total H/E 6.50E-07 6.85E+07 4.45E+o1

52.30%

1.94E+ll 1.2GE+05 66.34%

H/L 6.88E-07 1.60E+07 1.lOE+Ol 12.93%

3.71E+10 2.55E+04 13.43%

M/E

. 4.23E-07 1.90E+01 8.04E+OO 9.44%

4.28E+10 1.81E+04 9.52%

M/L 3.43E-06.

5.80E+06 l.99E+Ol 23.37%

5.71E+09 1.96E+04 10.30%

L/E 1.llE-07 6.40E+06 7.lOE-01 0.83%

I 4.67E+09 5.l&E+02 0.27%

L/L 6.43E-07 l.33E+06 8.55E-01 1.00%

3.72E+08 2.39E+02 0.13%

LL/L 5.82E-08 1.12E+06 6.52E-02 0.08%

3.19E+08 1.86E+Ol 0.01%

NCF 1.19E-05 3.25E+03 3.87E-02 0.05%

4.00E+03 4.76E-02 0.00%

I Total 1.79E-05 8.51E+Ol 100%

1.90E+05 100%

I 6 Table 2H in IP-RPT-16-00077 (Reference 4)

IP-RPT-16-00078, Rev. 0 Page 11of86

Indian Point RAI CLl-16-07 SAMA Cost-Benefit Sensitivities IP-RPT-16-00078 Revision O Page 12 of 84 Table 7 - IP3 Escalated VALWNF and VNFRM and Revised VDEPOS MACCS2 Results7 Off site Off site Population Population PDR Economic Economic OECR Release Frequency Dose Dose Risk

%of Cost Cost Risk

% of Category (per yr)

(p-rem)

(p-rem/yr)

Total I

($)

($/yr)

Total H/E 9.43E-07 5.49E+07 5.18E+Ol 53.59%

l.45E+ll l.37E+05 I 62.57%

H/L 4.23E-07 l.60E+07 6.77E+OO 7.01% I 3.71E+10 1.57E+04 7.18%

l M/E l.24E-06 2.03E+07 2.52E+Ol I 26.06%

4.36E+l0 5.41E+04 24.74%

M/L 2.0lE-06 5.79E+06 l.16E+Ol

! 12.05%

5.71E+09 l.15E+04 5.25%

L/E l.46E-07 4.48E+06 6.54E-01 I 0.68%

2.85E+09 4.16E+02 0.19%

L/L 3.75E-07 l.33E+06 4.99E-01 I 0.52%

3.72E+08 l.40E+02 0.06%

LL/L 5.66E-08 l.12E+06 6.34E-02 I 0.07% I 3.19E+08 l.81E+Ol 0.01%

NCF 6.30E-06 5.54E+03 3.49E-02 0.04%

l.17E+04 7.37E-02 0.00%

Total 1.15E-05 9.66E+Ol i

100%

2.19E+05 100%

I The alternative baseline with the change to VDEPOS along with escalation of VALWNF and VNFRM did not result in additional potentially cost-beneficial SAMAs.

Using the alternative revised baseline (with escalated VALWNF and VNFRM and revised VDEPOS),

Entergy ran supplemental sensitivity analyses using the input values specified in CLl-16-07 (Reference 4). Specifically, the maximum values specified by the Commission and allowed by the MACCS code for TIMDEC and CDNFRM values (one year (365 days) and $100,000, respectively) for "heavy decontamination" (i.e., the decontamination/dose reduction factor of 15) were applied. The parameter value changes are applied to all release categories for consistency, (i.e., not just the four worst release categories as specified in the RAI.) Table 8 and Table 9 show the PDR and OECR results, when the TIMDEC and CDNFRM values are increased to the maximum MACCS2 allowed values as stipulated in the RAI, with the alternate revised baseline. Comparison of these results to the baseline results in the 2009 analysis (Reference 3) shows that the OECR increases approximately 82-91 %. The PDR increase is much smaller, approximately 7-10%.

7 Table 3H in IP-RPT-16-00077 (Reference 4)

IP-RPT-16-00078, Rev. 0 Page 12 of 86

Indian Point RAI CLl-16-07 SAMA Cost-Benefit Sensitivities IP-RPT-16-00078 Revision O Page 13 of 84 Table 8 - IP2 Increased TIMDEC and CDNFRM (with Escalated VALWNF and VNFRM and Revised VDEPOS) MACCS2 Sensitivity Results8 Off site Off site Population Population PDR Economic Economic OECR Release Frequency Dose Dose Risk

%of Cost Cost Risk

%of Category (per yr)

(p-rem)

(p-rem/yr)

Total

($)

($/yr)

Total H/E 6.SOE-07 7.90E+07 S.14E+Ol SS.

4.49E+ll 2.92E+OS I 72.0S%

I H/L 6.88E-07 1.66E+07 1.14E+Ol ! 12.28%

7.lOE+lO 4.88E+04 i 12.06%

i M/E 4.23E-07 1.99E+07 8.42E+OO 9.0S%

7.96E+l0 3.37E+04 8.31%

M/L I

i I

3.43E-06 S.87E+06 2.0lE+Ol I 21.6S%

I 8.S7E+09 2.94E+04 7.26%

L/E 1.llE-07 6.4SE+06 7.16E-01 I 0.77%

I 7.02E+09 7.79E+02 I 0.19%

I I

L/L 6.43E-07 1.33E+06 8.SSE-01 0.92%

7.21E+08 4.64E+02 i

0.11%

i I

LL/L S.82E-08 l.12E+06 6.S2E-02 I 0.07%

6.09E+08 3.S4E+Ol 0.01%

NCF 1.19E-OS 3.2SE+03 3.87E-02 I 0.04%

4.00E+03 4.76E-02 I 0.00%

Total 1.79E-OS 9.30E+Ol I !

100% I 4.0SE+OS I 100%

Table 9-IP3 Increased TIMDEC and CDNFRM (with Escalated VALWNF and VNFRM and Revised VDEPOS) MACCS2 Sensitivity Results9 i

I Off site Off site I

I PDR I

OECR Population Population I

! Economic Economic I

I Release Frequency Dose Dose Risk

%of I Cost Cost Risk

%of Category (per yr)

(p-rem)

(p-rem/yr) I Total I

($)

($/yr)

I Total H/E 9.43E-07 6.16E+07 S.81E+Ol SS.72% I 3.S9E+ll 3.39E+OS 71.22%

H/L 4.23E-07 1.6SE+07 6.98E+OO I 6.70%

7.lOE+lO 3.00E+04 6.32%

M/E 1.24E-06 2.11E+07 2.62E+Ol I 2S.10% I 7.lSE+lO 8.87E+04 i 18.6S%

M/L 2.0lE-06 S.8SE+06 1.18E+Ol I

11.28% I 8.S6E+09 1.72E+04 I 3.62%

I I

I L/E 1.46E-07 4.S2E+06 6.60E-01 0.63%

4.10E+09 S.99E+02 0.13%

L/L 3.7SE-07 1.33E+06 4.99E-01 0.48%

7.21E+08 2.70E+02 0.06%

LL/L S.66E-08 1.12E+06 6.34E-02 0.06% I 6.09E+08 3.4SE+Ol 0.01%

l NCF 6.30E-06 S.S4E+03 3.49E-02 0.03% I 1.17E+04 7.37E-02 0.00%

Total 1.lSE-OS 1.04E+02 I 100%

4.7SE+OS 100%

Increasing the TIMDEC and CDNFRM values to the maximum MACCS2 allowed values as stipulated in the RAI, with the alternative revised baseline, did not result in additional potentially cost-beneficial SAMAs.

IP-RPT-16-00078, Rev. 0 Page 13 of 86

Indian Point RAI CLl-16-07 SAMA Cost-Benefit Sensitivities Response to RAI 3:

IP-RPT-16-00078 Revision 0 Page 14 of 84 The input and output files for the IP2 and IP3 MACCS code are provided. Additionally_, the tables jn the prior responses convey the population dose and off-site economic cost for each release category and integrate the results into a Population Dose Risk and an Offsite Economic Cost Risk -for IP2 and lP3.

IP-RPT-16-00078, Rev. 0 Page 14 of 86

Indian Point RAI CLl-16-07 SAMA Cost-Benefit Sensitivities 3.0 References IP-RPT-16-00078 Revision 0 Page 15 of 84

1. ML16125A150, NRG Commission Memorandum and Order (CLl-16-07), May 4, 2016

2. ML16232A119, "Request for Additional Information Related to the Indian Point Nuclear Gener~ting Unit Nos. 2 and 3 License Renewal Application Environmental Review, Severe Accident Mitigation Alternatives", NRC, September 12, 2016

3. IP-RPT-09-00044, "Re-analysis of IP2 and IP3 Severe Accident Mitigation Alternatives (SAMAs),"

Rev. 0, December 2009

4. IP-RPT-16-00077, "Indian Point RAI CLl-16-07 MACCS2 Sensitivities," Rev. 0, December 2016

5. ML14337A042, Entergy letter NL-14-143, Reply to Request for Additional Information Regarding the License Renewal Application, Indian Point Nuclear Generating Unit Nos. 2 and 3, November 20,2014

6. IP-RPT-07-00007, "IP2 Cost-Benefit Analysis of Severe Accident Mitigation Alternatives," Rev. 0, April 2007

7. IP-RPT-07-00008, "IP3 Cost-Benefit Analysis of Severe Accident Mitigation Alternative," Rev. 0, April 2007

8. IPEC-CALC-09-00265, "Re-analysis of MACCS2 Models for IPEC," Rev. 0, December 2009

9. ENERCON, "Site-Specific MACCS2 Input Data for Indian Point Energy Center," Rev. 1, December 2009 IP-RPT-16-00078, Rev. 0 Page 15 of 86

Indian Point RAI CLl-16-07 SAMA Cost-Benefit Sensitivities 4.9 Assumptions I P-RPT-16-00078 Revision O Page 16 of 84 4.1.

Assumptions utilized in IP-RPT-09-00044 (Reference 3), the prior SAMA cost-benefit analysis of record, are carried forward to this calculation.

4.2.

Assumptions utilized in IP-RPT-16-00077 (Reference 4), the MACCS2 analysis of sensitivities for the RAI response, are carried forward to this calculation.

IP-RPT-16-00078, Rev. 0 Page 16 of 86

Indian Point RAI CLl-16-07 SAMA Cost-Benefit Sensitivities 5.0 Evaluation of Potentially Cost-Beneficial SAMAs for the Sensitivity Cases 5.1 MACCS2 Sensitivity Cases IP-RPT-16-00078 Revision O Page 17 of 84 In IP-RPT-16-00077 (Reference 4), a series of MACCS2 sensitivity cases are performed with adjustments to select MACCS2 parameter input values. For each sensitivity case, the MACCS2 results for total 50-mile offsite costs and 50-mile population dose for each release category are multiplied by the applicable release category frequency to calculate the SAMA metrics of Offsite Economic Cost Risk (OECR) and Population Dose Risk (PDR). The OECR and PDR of ttie various sensitivity cases are then compared against applicable reference cases to determine the impact of the revised parameters.

More MACCS2 cases are documented in IP-RPT-16-00077 than are str~ctly required to address the RAI response. To expedite the evaluation, these additional cases were not carried through the SAMA cost-benefit analysis. Thus, the evaluation of potentially cost-beneficial SAMAs was only performed for the following MACCS2 cases.

For each IPEC unit, the following MACCS2 sensitivity cases are evaluated.

Case O o

SAMA Base Case Check o

This case confirms that the results of IP-RPT-09-00044 (Reference 3) can be reproduced with the applicable MACCS2 files upon which the sensitivity cases are built.

Case 4 o

VALWNF & VNFRM (including lost tourism and business) are escalated to 2005 values. VALWNF is used in the CHRONC input file and represents an average value for the 50 mile region. VNFRM is used in the SITE input file and is calculated on a county basis. Calculation of these values is presented below.

o This case addresses Part 1 of the RAI (i.e., corrected VALWNF), and represents the "revised baseline" as specified in the RAI.

Case 5 o

TIMDEC is escalated to one year (365 days) and CDNFRM is escalated to

$100,000/person for DF=15 in the CHRONC input file.

o VALWNF & VNFRM (including lost tourism and business) are escalated to 2005 values in the CHRONC and SITE input files, respectively.

o This case addresses Part 2(a) of the RAI.

Case 7 o

VALWNF & VNFRM (including lost tourism and business) are escalated to 2005 values in the CHRONC and SITE input files, respectively.

IP-RPT-16-00078, Rev. 0 Page 17 of 86

Indian Point RAI CLl-16-07 SAMA Cost-Benefit Sensitivities IP-RPT-16-00078 Revision 0 Page 18 of 84 o

The dry deposition velocity, VDEPOS, is set to 0.003 m/sec in the ATMOS input file rather than the value of 0.01 O m/sec. The value of 0.003m/sec is documented by the recent N RC's State-of-the-Art Reactor Consequence Analyses (SOAR CA) Project to be the dominant or average value for use in SOAR CA and is viewed as more representative than the value of 0.010m/sec used in the NUREG-1150 studies.

o Similar to Case 4, Case 7 addresses Part 1 of the RAI (i.e., corrected VALWNF), and represents the "revised baseline" as specified in the RAI, except with an updated dry deposition velocity.

Case 8 o

TIMDEC is escalated to one year (365 days) and CDNFRM is escalated to

$100,000/person for DF=15 in the CHRONC input file.

o VALWNF & VNFRM (including lost tourism and business) are escalated to 2005 values in the CHRONC and SITE input files, respectively.

o The dry deposition velocity, VDEPOS, is set to 0.003 m/sec in the ATMOS input file rather than the value of 0.010 m/sec.

o Similar to Case 5, Case 8 addresses Part 2(a) of the RAI (i.e., corrected VALWNF, increased TIMDEC & CDNFRM), as specified in the RAI, except with an updated dry deposition velocity.

5.2 Sensitivity Case 0 - Original Baseline A. Base Case for the Majority of the SAMAs The SAMA cost-benefit analyses in IP-RPT-09-00044 (Reference 3) were performed using un-linked spreadsheets in which some data was inserted manually. See Attachment 1 for a list of the spreadsheets. To facilitate the evaluation of multiple sensitivity cases, a combined spreadsheet was created, named "Case 0 IPEC SAMA Sensitivities."

This spreadsheet contains a worksheet, "Spreadsheet Conversion," documenting the conversion from the 2009 vintage worksheets and confirming that the combined spreadsheet calculates the 2009 benefit value for each SAMA. For a limited number of SAMAs, the combined spreadsheet calculates a slightly different benefit value from that calculated in 2009. These instances occur because the combined spreadsheet rounds values consistently for all of the SAMAs, which was not the case in the un-linked spreadsheets.

The combined spreadsheet facilitates sensitivity evaluations for the majority of the SAMAs because the PDR and OECR values from the sensitivity cases in IP-RPT-16-00077 (Reference 4) can be placed in worksheets "IP2 MACCS2 Output" and "IP3 MACCS2 Output" and the benefit values are automatically re-calculated and populated in columns C and D of the "Case# (cost-benefit)"

worksheet for comparison with the implementation cost estimates. Columns G and H of the "Case

(cost-benefit)" worksheet contain the implementation cost estimates from IP-RPT-09-00044 (Reference 3) and NL-14-143 (Reference 5), respectively.

IP-RPT-16-00078, Rev. 0 Page 18 of 86

Indian Point RAI CLl-16-07 SAMA Cost-Benefit Sensitivities B. Base Case for SAMAs IP2-020 and IP3-018 IP-RPT-16-00078 Revision O Page 19 of 84 SAMA IP2-020, "Route the discharge from the main steam safety valves through a structure where a water spray would condense the steam and remove most of the fission products," does not use the same MACCS2 output as the other SAMAs. As described in Appendix B of IP-RPT-04-00007 (Reference 6), analysis case 16 was used to evaluate SAMA IP2-020. A bounding analysis was performed by reducing SGTR accident progression source terms by a factor of 2.

The source terms used for the IP2-020 analysis are contained in file "IP2 SAMA Radionuclide Release Results-Level2-20.xls." A comparison of the IP2-020 source terms with those in Table A-10 of IP-RPT-07-00007 shows that the only differences are the release fractions for the Early High (H-E), Early Medium (M-E), and Early Low (L-E) release cateigo,ries. This is reasonable, since SGTR accidents are bypass events, which contribute to early release categories.

Since the source term is different for this SAMA, the MACCS2 output is also different for this SAMA.

Therefore, the MACCS2 Case 0, Case 4, Case 5, Case 7, and Case 8 sensitivities were reevaluated with the IP2-020 source term information (Reference 4). An additional worksheet, "IP2-020 MACCS2 Output," was added to the combined spreadsheet, "Case O IPEC SAMA Sensitivities," to calculate the base case benefits and facilitate the sensitivity evaluations for IP2-020.

SAMA IP3-018, "Route the discharge from the main steam safety valves through a structure where a water spray would condense the steam and remove most of the fission products," does not use the same MACCS2 output as the other SAMAs. As described in Appendix B of IP-RPT-04-00008 (Reference 7), analysis case 14 was used to evaluate SAMA IP3-018. A bounding analysis was performed by reducing SGTR accident progression source terms by a factor of 2.

The source terms used for the IP3-018 analysis are contained in file "IP3 SAMA Radionuclide Release Results-Level2-18.xls." A comparison of the IP3-018 soµrce terms with those in Table A.10 of IP-RPT-07-00008 shows that the only differences are the release fractions for the Early High (H-E), Early Medium (M-E), and Early Low (L-E) release categories. This is reasonable, since SGTR accidents are bypass events, which contribute to early release categories.

Since the source term is different for this SAMA, the MACCS2 output is also different for this SAMA.

Therefore, the MACCS2 Case 0, Case 4, Case 5, Case 7, and Case 8 sensitivities were reevaluated with the IP2-020 source term information (Reference 4). An additional worksheet, "IP3-018 MACCS2 Output," was added to the combined spreadsheet, "Case 0 IPEC SAMA Sensitivities," to calculate the base case benefits and facilitate the sensitivity evaluations for IP3-018.

C. Altered Base Case for Tl-SGTR SAMAs Section 3.6 of IP-RPT-09-00044 (Reference 3) describes the analysis performed to evaluate the impact of more pessimistic assumptions regarding scenarios that involve the potential for a thermally induced steam generator tube rupture (Tl-SGTR). The NUREG-1570 full conditional induced SGTR value (0.25) for moderate tube degradation was applied to all high/dry sequences in the Level 2 model for each unit; in both station blackout and transient sequences.

IP-RPT-16-00078, Rev. 0 Page 19 of 86

Indian Point RAI CLl-16-07 SAMA Cost-:Senefit Sensitivities IP-.RPT-16-00078 Revision 0 Page 20 of 84 In the Tl-SGTR analysis, twenty seven IP2 SAMAs and twenty two IP3 SAMAs were identified as potentially impacted by the Tl-SGTR assumption.

IP2 SAMAs: 1, 6, 18, 19, 20, 25, 26, 27, 28, 29,30,31, 32, 35, 39, 40, 42, 44, 46, 52, 54, 59, 60,61,62,65,66 IP3SAMAs: 1, 16, 17, 18,23,24,25,26,27,28,29,30,33,38,40,42,43,55,56,58,61,62 Since IP2 SAMAs28, 44, 54, 60, 61, 62 and 65 and IP3 SAMAs 55, 61 and 62 were previously determined to be potentially cost beneficial, they were not re-evaluated. Of the remaining SAMAs, a detailed evaluation was performed for those for which the cost outweighed the benefit by less than a factor of five. This screening criterion was applied to facilitate.the re-evaluation by limiting it to those potentially impacted SAMA candidates with a realistic possibility of becoming cost-beneficial:

The unscreened IP2 SAMAs were SAMAs 1, 6, 25, 29, 40 and 52.

The unscreened IP3 SAMAs were SAMAs 1, 16, 18, 30, 40 and 43.

The source terms used for the IP2 Tl-SGTR analysis are contained in file "IP2 Radionuclide Release Results-Base-RAl#5.xls." The source terms used for the IP3 Tl-SGTR analysis are contained in file "IP3 Radionuclide Release Results-Base-RAl#5.xls." A comparison of the Tl-SGTR source terms with those in Table A-10 oflP-RPT-07-00007 and Table A.10 of IP-RPT 00008 shows that the only differences are the timing and release fractions for the Early High (H-E) release category. This is reasonable, since high/dry sequences would be expected to contribute to this release category.

Since the source term is different for these SAMAs, the MACCS2 output is also different for these SAMAs. Therefore, the MACCS2 Case 0, Case 4, Case 5, Case 7, and Case 8 sensitivities were reevaluated with the Tl-SGTR source term information (Reference 4). Additional worksheets (IP2 Tl-SGTR Base, IP2 Tl-SGTR MACCS2 Output, IP3 Tl-SGTR Base, IP3 Tl-SGTR MACCS2 Output, and individual Tl-SGTR SAMA worksheets) were added to the combined spreadsheet, "Case 0 IPEC SAMA Sensitivities," to calculate the base case benefits and facilitate the sensitivity evaluations for the Tl-SGTR SAMAs.

5.3 Sensitivity Case 4-Revised Baseline (Escalated VALWNF and VNFRM)

Case4 o

VALWNF & VNFRM (including lost tourism and business) are escalated to 2005 values. VALWNF is used in the CHRONC input file and represents an average value for the 50 mile region. VNFRM is used in the SITE input file and is calculated on a county basis.

o This case addresses Part 1 of the RAI (i.e., corrected VALWNF), and represents the "revised baseline" as specified in the RAI.

The following steps were performed to evaluate Sensitivity Case 4.

IP-RPT-16-00078, Rev. 0 Page 20 of 86

Indian Point RAI CLl-16-07 SAMA Cost-Benefit Sensitivities I P-RPT-16-00078 Revision 0 Page 21 of 84

1. Copied combined spreadsheet and renamed, "Case 4 IPEC SAMA Sensitivities.xlsx."

2. Renamed worksheet "Case O (cost-benefit)" to "Case 4 (cost-benefit)" and deleted columns J and K from this worksheet.

3. Copied PDR and OECR values from the sensitivity cases in IP-RPT-16-00077 into the appropriate worksheets in Case 4 IPEC SAMA Sensitivities.xlsx (see table below).

Worksheet in Case 4 IPEC SAMA Spreadsheet from IP-RPT-16-00077 Worksheet in IP-RPT-16-00077 Sensitivities.xlsx Spreadsheet IP2 MACCS2 Output IP2-020 MACCS2 Cutout U2 Results Detailed IP2 Tl-SGTR MACCS2 Output 2016 IPEC MACCS2 Sens-RevD.xlsx IP3 MACCS2 Outouf IP3-018 MACCS2 Output I

U3 Results Detailed IP3 Tl-SGTR MACCS2 Output

4. The benefit values were automatically re-calculated and populated in columns C and D of the "Case 4 (cost-benefit)" worksheet for comparison with the implementation cost estimates.

5. Since Case 4 is considered a "new baseline," the SAMAs potentially impacted by the Tl-SGTR assumption were re-screened consistent with the screening in IP-RPT-09-00044 and described in Section 5.2.C above.

In the Tl-SGTR analysis, twenty seven IP2 SAMAs and twenty two IP3 SAMAs were identified as potentially impacted by the Tl-SGTR assumption.

IP2 SAMAs: 1, 6, 18, 19, 20, 25, 26, 27, 28, 29,30,31, 32, 35, 39, 40, 42, 44, 46, 52, 54,59,60,61,62,65,66 IP3 SAM/\\s: 1, 16, 17, 18, 23, 24, 25, 26, 27, 28, 29, 30, 33, 38, 40, 42, 43, 55, 56, 58, 61,62 Since IP2 SAMAs 28, 44, 54, 60, 61, 62 and 65 and IP3 SAMAs 55, 61 and 62 were previously determined to be potentially cost beneficial, they were not re-evaluated. Of the remaining SAMAs, a detailed evaluation was performed for those for which the cost outweighed the benefit by less than a factor of five. [Column J of the "Case 4 (cost-benefit)"

worksheet was used for this screening.] This screening criterion was applied to facilitate the re-evaluation by limiting it to those potentially impacted SAMA candidates with a realistic possibility of becoming cost-beneficial.

In Case 0, the unscreened IP2 SAMAs were SAMAs 1, 6, 25, 29, 40 and 52.

In Case 4, the unscreened IP2 SAMAs are SAMAs 1, 25, 29, 40 and 52.

In Case 0, the unscreened IP3 SAMAs were SAMAs 1, 16, 18, 30, 40 and 43.

In Case 4, the unscreened IP3 SAMAs are SAMAs 1, 16, 17, 30, 40 and 43.

IP-RPT-16-00078, Rev. 0 Page 21of86

Indian Point RAI CLl-16-07 SAMA Cost-Benefit Sensitivities IP-RPT-16-00078 Revision O Page 22 of 84

6. As described in Section 5.2.C above for the other Tl-SGTR SAMAs, an additional worksheet.

was added to the Case 4 spreadsheet to evaluate the IP3-017 Tl-SGTR benefit. The "Case 4 (cost-benefit)" worksheet was adjusted accordingly.

7. SAMA IP2-006 does not meet the screening criterion in Case 4 due to rounding of the benefit values. However, the Tl-SGTR analysis for this SAMA was retained in the Case 4 spreadsheet.

8. SAMA IP3-018 does not meet the screening criterion in Case 4 due to the new implementation cost estimate reported in NL-14-143 (Reference 5). Nevertheless, the Tl-SGTR analysis for this SAMA was retained in the Case 4 spreadsheet. This SAMA does not become cost-beneficial in Case 4 or Case 5, so there is no impact from keeping the Tl-SGTR analysis.

5.4 Sensitivity Case 5-Revised TIMDEC and CDNFRM (with Escalated VALWNF and VNFRM)

Case 5 o

TIMDEC is escalated to one year (365 days) and CDNFRM is escalated to

$100,000/person for DF=15 in the CHRONC input file.

o VALWNF and VNFRM (including lost tourism and business) are escalated to 2005 values in the CHRONC and SITE input files, respectively.

o This case* addresses Part 2(a) of the RAI.

The following steps were performed to evaluate Sensitivity Case 5.

1. Copied Case 4 spreadsheet and renamed, "Case 5 IPEC SAMA Sensitivities.xlsx."

2. Renamed worksheet "Case 4 (cost-benefit)" to "Case 5 (cost-benefit)."

(

3. Cleared the contents of columns D and F and revised equations in column I to use the values in columns C and E for comparison. Since Case 5 is a sensitivity analysis on the revised baseline from Case 4, the 95th percentile uncertainty sensitivity does not also need to be calculated. Also, deleted column J since the Tl-SGTR screening was performed in Case 4.

4. Copied PDR and OECR values from the sensitivity cases in IP-RPT-16-00077 into the appropriate worksheets in Case 5 IPEC SAMA Sensitivities.xlsx (see table below).

Worksheet in Case 5 IPEC SAMA Spreadsheet from IP-RPT-16-00077 Worksheet in IP-RPT-16-00077 Sensitivities.xlsx Spreadsheet I P2 MACCS2 Output IP2-020 MACCS2 Output U2 Results Detailed IP2 Tl-SGTR MACCS2 Output 2016 IPEC MACCS2 Sens-RevD.xlsx I P3 MACCS2 Output IP3-018 MACCS2 Output U3 Results Detailed IP3 Tl-SGTR MACCS2 Output IP-RPT-16-00078, Rev. 0 Page 22 of 86

Indian Point RAI CLl-16-07 SAMA Cost-Benefit Sensitivities IP-RPT-16-00078 Revision O Page 23 of 84

5. The benefit values were automatically re-calculated and populated in columns C and E of the "Case 5 (cost-benefit)" worksheet for comparison with the implementation cost estimates.

6. A few of the IP2 SAMAs showed a negative benefit in the Case 5 results. This occurred because the SAMAs had no benefit and the release mode frequencies for the individual SAMAs carried more digits than the release mode frequ_encies for the IP2-Base Benefit.

The release mode frequencies from the IP2-Base Benefit worksheet were copied over the release mode frequencies in worksheets IP2-033, IP2-046, IP2-047, IP2-051, IP2-055, and IP2-058. This corrects the SAMA benefits in the Case 5 (Cost-Benefit) worksheet so that they are zero, rather than negative.

5.5 Sensitivity Case 7 - Alternate Revised Baseline (Escalated VALWNF and VNFRM and revised VDEPOS)

Case 7 o

VALWNF & VNFRM (including lost tourism and business) are escalated to 2005 values in the CHRONC and SITE input files, respectively.

o The dry deposition velocity, VDEPOS, is set to 0.003 m/sec in the ATMOS input file rather than the IP-CALC-09-00265 (Reference 8) value of 0.010 m/sec. The value of 0.003m/sec is documented by the recent NRC's State-of-the-Art Reactor Consequence Analyses (SOARCA) Project to be the dominant or average value for use in SOARCA and is viewed as more representative than the value of 0.010m/sec used in the NUREG-1150 studies.

o Similar to Case 4, Case 7 addresses Part 1 of the RAI (i.e., escalated VALWNF), and represents the "revised baseline" as specified in the RAI, except with an updated dry deposition velocity.

The following steps were performed to evaluate Sensitivity Case 7.

1. Copied combined spreadsheet and renamed, "Case 7 IPEC SAMA Sensitivities.xlsx."

2. Renamed worksheet "Case O (cost-benefit)" to "Case 7 (cost-benefit)" and deleted columns J and K from this worksheet.

3. Copied PDR and OECR values from the sensitivity cases in IP-RPT-16-00077 into the appropriate worksheets in Case 7 IPEC SAMA Sensitivities.xlsx (see table below).

. Worksheet in Case 4 IPEC SAMA Spreadsheet from IP-RPT-16-00077 Worksheet in IP-RPT-16-00077 Sensitivities.xlsx Spreadsheet I P2 MACCS2 Output IP2-020 MACCS2 Output U2 Results Detailed IP2 Tl-SGTR MACCS2 Output 2016 IPEC MACCS2 Sens - RevD.xlsx I P3 MACCS2 Output IP3-018 MACCS2 Output U3 Results Detailed IP3 Tl-SGTR MACCS2 Output IP-RPT-16-00078, Rev. 0 Page 23 of 86

Indian Point RAI CLl-16-07 SAMA Cost-Benefit Sensitivities IP-RPT-16-00078 Revision O Page 24 of 84

4. The benefit values were automatically re-calculated and populated in columns C and D of the "Case 7 (cost-benefit)" worksheet for comparison with the implementation cost estimates.

5. A few of the IP2 SAMAs showed a negative benefit in the Case 7 results. This occurred because the SAMAs had little or no benefit and the release mode frequencies for the individual SAMAs carried more digits than the release mode frequencies for the IP2-Base Benefit. The release mode frequencies from the IP2-Base Benefit worksheet were copied over the release mode frequencies in worksheets IP2-012, IP2-013, IP2-016, IP2-033, IP2-046, IP2-047, IP2-051, IP2-055, and IP2-058. Also, the IP2-Base Benefit release frequencies for the non-NCF release modes were copied over the release mode frequencies in worksheet IP2-067. This corrects the SAMA benefits in the Case 5 (Cost-Benefit) worksheet so that they are non-negative.

6. Since Case 7 is a proposed, alternate "new baseline," the SAMAs potentially impacted by the Tl-SGTR assumption were re-screened consistent with the screening in IP-RPT 00044 and described in Section 5.2.C above.

In the Tl-SGTR analysis, twenty seven IP2 SAMAs and twenty two IP3 SAMAs were identified as potentially impacted by the Tl-SGTR assumption.

IP2 SAMAs: 1, 6, 18, 19, 20, 25, 26, 27, 28, 29,30,31, 32, 35, 39, 40, 42, 44, 46, 52, 54,59,60,61,62,65,66 IP3 SAMAs: 1, 16, 17, 18, 23, 24, 25, 26, 27, 28, 29, 30, 33, 38, 40, 42, 43, 55, 56, 58, 61,62 Since IP2 SAMAs 28, 44, 54, 60, 61, and 65 and IP3 SAMAs 55, 61 and 62 were previously determined to be potentially cost beneficial, they were not re-evaluated. Of the remaining SAMAs, a detailed evaluation was performed for those for which the cost outweighed the benefit by less than a factor of five. [Column J of the "Case 7 (cost-benefit)" worksheet was used for this screening.] This screening criterion was applied to facilitate the re-evaluation by limiting it to those potentially impacted SAMA candidates with a realistic possibility of becoming cost-beneficial.

In Case 0, the unscreened IP2 SAMAs were SAMAs 1, 6, 25, 29, 40 and 52.

In Case 7, the unscreened IP2 SAMAs are SAMAs 1, 25, 40, 52, and 62.

In Case 0, the unscreened IP3 SAMAs were SAMAs 1, 16, 18, 30, 40 and 43.

In Case 7, the unscreened IP3 SAMAs are SAMAs 1, 16, 30, 40 and 43.

7. A'$ described in Section 5.2.C above for the other Tl-SGTR SAMAs, an additional worksheet was added to the Case 7 spreadsheet to evaluate the IP2-062 Tl-SGTR benefit. The "Case 7 (cost-benefit)" worksheet was adjusted accordingly. [IP2-062 was not evaluated for Tl-SGTR in Case* 0 because it was cost-beneficial in Case 0. However, IP2-062 is not cost-beneficial in Case 7, so it is included in the Tl-SGTR evaluation.]

IP-RPT-16-00078, Rev. 0 Page 24 of 86

Indian Point RAI CLl-16-07 SAMA Cost-Benefit Sensitivities IP-RPT-16-00078 Revision 0 Page 25of84

8. Similar to Case 4, SAMAs IP2-006, IP2-029, and IP3-018 do not meet the screening criterion in Case 7. However, the Tl-SGTR analyses for these SAMAs were retained in the Case 7 spreadsheet.

5.6 Sensitivity Case 8-Alternate Revised TIMDEC and CDNFRM (with Escalated VALWNF and VNFRM and revised VDEPOS)

Case 8 o

TIMDEC is escalated to one year (365 days) and CDNFRM is escalated to

$100,000/person for DF=15 in the CHRONC input file.

o VALWNF & VNFRM (including lost tourism and business) are escalated to 2005 values in the CHRONC and SITE input files, respectively.

o The dry deposition velocity, VDEPOS, is set to 0.003 m/sec in the ATMOS input file rather than the IP-CALC-09-00265 (Reference 8) value of 0.010 m/sec.

o Similar to Case 5, Case 8 addresses Part 2(a) of the RAI (i.e., corrected VALWNF, increased TIM DEC & CDNFRM), as specified in the RAI, except with an updated dry deposition velocity.

The following steps were performed to evaluate Sensitivity Case 8.

1. Copied Case 7 spreadsheet and renamed, "Case 8 IPEC SAMA Sensitivities.xlsx."

2. Renamed worksheet "Case 7 (cost-benefit)" to "Case 8 (cost-benefit)."

3. Cleared the contents of columns D and F and revised equations in column I to use the values in columns C and E for comparison. Since Case 8 is a sensitivity analysis on the alternate revised baseline in Case 7, the 95th percentile uncertainty sensitivity does not also need to be calculated. Also, deleted column J since the Tl-SGTR screening was performed in Case 7.

4. Copied PDR and OECR values from the sensitivity cases in IP-RPT-16-00077 into the appropriate worksheets in Case 8 IPEC SAMA Sensitivities.xlsx (see table below).

Worksheet in Case 5 IPEC SAMA Spreadsheet from IP-RPT-16-00077 Worksheet in IP-RPT-16-00077 Sensitivities.xlsx Soreadsheet IP2 MACCS2 Output IP2-020 MACCS2 Cutout U2 Results Detailed IP2 Tl-SGTR MACCS2 Cutout 2016 IPEC MACCS2 Sens-RevD.xlsx IP3 MACCS2 Cutout IP3-018 MACCS2 Cutout U3 Results Detailed IP3 Tl-SGTR MACCS2 Output

5. The benefit values were automatically re-calculated and populated in columns C and E of the "Case 8 (cost-benefit)" worksheet for comparison with the implementation cost estimates.

IP-RPT-16-00078, Rev. 0 Page 25 of 86

Indian Point RAI CLl-16-07 SAMA Cost-Benefit Sensitivities 6.0 Conclusions 6.1 Sensitivity Case 4 - Revised Baseline (Escalated VALWNF and VNFRM)

IP-RPT-16-00078 Revision O Page 26 of 84 The revised baseline with escalation of VALWNF and VNFRM resulted in one additional potentially cost-beneficial SAMA; IP2-021, "Install additional pressure or leak monitoring instrumentation for ISLOCAs."

Table 10 provides the Sensitivity Case 4 SAMA results.

6.2 Sensitivity Case 5-Revised TIMDEC and CDNFRM (with Escalated VALWNF and VNFRM)

Increasing TIMDEC and CDNFRM (with escalated VALWNF and VNFRM) resulted in one additional potentially cost-beneficial SAMA; SAMA IP3-057, "Provide backup cooling water source for the CCW -

heat exchangers."

Table 11 provides the Sensitivity Case 5 SAMA results.

6.3 Sensitivity Case 7-Alternate Revised Baseline (Escalated VALWNF and VNFRM and revised VDEPOS)

Sensitivity Case 7 shows that the change to VDEPOS along with escalation of VALWNF and VNFRM

did not result in additional potentially cost-beneficial SAMAs.

[In Case O, SAMA IP2-062 was cost beneficial without the Tl-SGTR evaluation. However, in Case 7, SAMA IP2-062 was not cost beneficial until after the Tl-SGTR evaluation. This has no bearing on the results of this analysis since SAMA IP2-062 was retained in Case O.]

Table 12 provides the Sensitivity Case 7 SAMA results.

6.4 Sensitivity Case 8-Alternate Revised TIMDEC and CDNFRM (with Escalated VALWNF and VNFRM and revised VDEPOS)

Increasing TIMDEC and CDNFRM (with escalated VALWNF and VNFRM and revised VDEPOS) did not result in additional potentially cost-beneficial SAMAs.

Table 13 provides the Sensitivity Case 8 SAMA results.

IP-RPT-16-00078, Rev. 0 Page 26 of 86

IP-RPT-16-00078 Indian Point RAI CLl-16-07 SAMA Cost-Benefit Sensitivities Revision 0 Page 27 of 84 Table 10- Case 4 Sensitivity SAMA Resultsl1I Tl-SGTR Tl-SGTR Estimated Estimated Phase II Description Baseline Benefit With Benefit Benefit With Cost (IP-Cost (NL-Conclusion SAMA Benefit Uncertainty Without Uncertainty RPT 14-143)

Uncertainty 00044)

IP2-001 001 - Create an independent RCP seal injection 374,757 788,963 374,757 788,963 1,137,000 n/a Not Beneficial system with a dedicated diesel.

IP2-002 002 - Create an independent RCP seal injection 350,396 737,676 n/a n/a 1,000,000 n/a Not Beneficial system without a dedicated diesel.

IP2-003 003 - Install an additional CCW pump.

0 0

n/a n/a 1,500,000 n/a Not Beneficial IP2-004 004 - Enhance procedural guidance for use of 48,723 102,574 n/a n/a 1,750,000 n/a Not Beneficial service water pumps.

005 - Improve ability to cool the RH R heat IP2-005 exchangers by allowing manual alignment of the 105,892 222,931 n/a n/a 565,000 n/a Not Beneficial fire protection system.

IP2-006 006 - Add a diesel building high temperature 24,361 51,287 32,541 68,508 274,000 n/ a Not Beneficial alarm.

IP2-007 007 - Install a filtered containment vent to 1,766,838 3,719,658 n/a n/a 5,700,000 n/a Not Beneficial provide fission product scrubbing.

008 - Create a large concrete crucible with heat IP2-008 removal potential under the base mat to contain 6,592,922 13,879,837 n/a n/a 108,000,000 n/a Not Beneficial molten core debris.

IP2..(109 009 - Create a reactor cavity flooding system.

6,592,922 13,879,837 n/a n/a 4,100,000 1,741,724 Retained IP2-010 010 - Create a core melt source reduction system.

6,592,922 13,879,837 n/a n/a 90,000,000 n/a Not Beneficial IP2-011 011 - Provide a means to inert containment.

3,296,461 6,939,918 n/a n/a 10,900,000 n/a Not Beneficial IP-RPT-16-00078, Rev. 0 Page 27 of 86

IP-RPT-16-00078 Indian Point RAI CLl-16-07 SAMA Cost-Benefit Sensitivities Revision 0 Page 28 of 84 Table 10 - Case 4 Sensitivity SAMA Results(1 J

Tl-SGTR Tl-SGTR Estimated Estimated Phase II Description Baseline Benefit With Benefit Benefit With Cost (IP-Cost (NL-Conclusion SAMA Benefit Uncertainty Without Uncertainty RPT 14-143)

Uncertainty 00044)

IP2-012 012 - Use the fire protection system as a backup 0

0 n/a n/a 565,000 n/a Not Beneficial source for the containment spray system.

IP2-013 013 - Install a passive containment spray system.

0 0

n/a n/a 2,000,000 n/a Not Beneficial 014 - Increase the depth of the concrete base IP2-014 mat or use an alternative concrete material to 1,194,251 2,514,214 n/a n/a 5,000,000 n/a Not Beneficial ensure melt-through does not occur.

IP2-015 015 - Construct a building connected to primary 6,208,472 13,070,466 n/a n/a 61,000,000 n/a Not Beneficial containment that is maintained at a vacuum.

IP2-016 016 - Install a redundant containment spray 0

0 n/a n/a 5,800,000 n/a Not Beneficial system.

017 - Erect a barrier that provides containment IP2-017 liner protection from ejected core debris at high 1,864,995 3,926,306 n/a n/a 5,500,000 n/a Not Beneficial pressure.

018 - Install a highly reliable steam generator IP2-018 shell-side heat removal system that relies on 73,618 154,986 n/a n/a 7,400,000 n/a Not Beneficial natural circulation and stored water sources.

019 - Increase secondary side pressure capacity IP2-019 such that a SGTR would not cause the relief 5,962,632 12,552,910 n/a n/a 100,000,000 n/a Not Beneficial valves to lift.

IP-RPT-16-00078, Rev. 0 Page 28 of 86

IP-RPT-16-00078 Indian Point RAI CLl-16-07 SAMA Cost-Benefit Sensitivities Revision 0 Page 29 of 84 Table 10- Case 4 Sensitivity SAMA Results111 Tl-SGTR Tl-SGTR Estimated Estimated Phase II Description Baseline Benefit With Benefit Benefit With Cost (IP-Cost (NL-Conclusion SAMA Benefit Uncertainty Without Uncertainty RPT 14-143)

Uncertainty 00044) 020 - Route the discharge from the main steam IP2-020 safety valves through a structure where a water 646,205 1,360,431 n/a n/a 9,700,000 n/a Not Beneficial spray would condense the steam and remove most of the fission products.

IP2-021 021-Install additional pressure or leak 2,216,549 4,666,419 n/a n/a 3,200,000 4,632,227 Retained monitoring instrumentation for ISLOCAs.

IP2-022 022 - Add redundant and diverse limit switches 1,112,364 2,341,820 n/a n/a 2,200,000 7,692,784 Not Beneficial to each containment isolation valve.

IP2-023 023 - Increase leak testing of valves in ISLOCA 1,112,364 2,341,820 n/a n/a 7,964,000 n/a Not Beneficial paths.

IP2-024 024 - Ensure all ISLOCA releases are scrubbed.

2,216,549 4,666,419 n/a n/a 9,700,000 n/a Not Beneficial IP2-025 025 - Improve MSIV design.

122,697 258,310 188,136 396,975 476,000 n/a Not Beneficial IP2-026 026 - Provide additional DC battery capacity.

48,723 102,574 n/a n/a 1,875,000 n/a Not Beneficial IP2-027 027 - Use fuel cells instead of lead-acid 48,723 102,574 n/a n/a 2,000,000 n/a Not Beneficial batteries.

IP2-028 028-Providet portable diesel-driven battery

%11,397,945 2,943,043 n/aw n/a 938,000

2,154Jt1 Ii Retained charger.

IP2-029 029 - Increase/ improve DC bus load shedding.

48,723 102,574 48,723 102,574 460,000 n/a Not Beneficial IP2-030 030 - Create AC power cross-tie capability with 56,813 119,607 n/a n/a 1,156,000 n/a Not Beneficial other unit.

IP-RPT-16-00078, Rev. 0 Page 29 of 86

IP-RPT-16-00078 Indian Point RAI CLl-16-07 SAMA Cost-Benefit Sensitivities Revision O Page 30 of 84 Table 10 - Case 4 Sensitivity SAMA Results(11 Tl-SGTR Tl-SGTR Estimated Estimated Phase II Description Baseline Benefit With Benefit Benefit With Cost (IP-Cost (NL-Conclusion SAMA Benefit Uncertainty Without Uncertainty RPT 14-143)

Uncertainty 00044)

IP2-031 031 - Create a backup source for diesel cooling 40,632 85,541 n/a n/a 1,700,000 n/a Not Beneficial (not from existing system).

IP2-032 032 - Use fire protection system as a backup 40,632 85,541 n/a n/a 497,000 n/a Not Beneficial source for diesel cooling.

033 - Convert under-voltage AFW and reactor IP2-033 protective system actuation signals from 2-out-0 0

n/a n/a 1,254,000 n/a Not Beneficial of-4 to 3-out-of-4 logic.

IP2-034 034 - Provide capability for diesel-driven, low 8,180 17,221 n/a n/a 632,000 n/a Not Beneficial pressure vessel makeup.

IP2-035 035 - Provide an additional high pressure 73,529 154,798 n/a n/a 5,000,000 n/a Not Beneficial injection pump with independent diesel.

IP2-036 036 - Create automatic swap-over to 138,344 291,251 n/a n/a 1,000,000 n/a Not Beneficial recirculation cooling upon RWST depletion.

IP2-037 037 - Provide capability for alternate injection 8,180 17,221 n/a n/a 750,000 n/a Not Beneficial via diesel-driven fire pump.

038 - Throttle low pressure injection pumps IP2-038 earlier in medium or large-break LOCAs to 16,271 34,254 n/a n/a 82,000 n/a Not Beneficial maintain reactor water storage tank inventory.

IP2-039 039 - Replace two of three motor-driven SI 73,529 154,798 n/a n/a 2,000,000 n/a Not Beneficial pumps with diesel-powered pumps.

IP-RPT-16-00078, Rev. 0 Page 30 of 86

IP-RPT-16-00078 Indian Point RAI CLl-16-07 SAMA Cost-Benefit Sensitivities Revision 0 Page 31 of 84 Table 10- Case 4 Sensitivity SAMA Results(11 Tl-SGTR Tl-SGTR Estimated Estimated Phase II Description Baseline Benefit With Benefit Benefit With Cost (IP-Cost (NL-Conclusion SAMA Benefit Uncertainty Without Uncertainty RPT 14-143)

Uncertainty 00044) 040 - Create/enhance a reactor coolant H

IP2-040 depressurization system.

613,307 1,291,173 613,307 1,291,173 2,000,000 n/a Not Beneficial IP2-041 041 - Install a digital feed water upgrade.

179,154 377,167 n/a n/a 900,000 n/a Not Beneficial IP2-042 042 - Provide automatic nitrogen backup to 16,360 34,441 n/a n/a 214,000 n/ a Not Beneficial steam generator atmospheric dump valves.

IP2-043 043 - Add a motor-driven feed water pump.

179,154 377,167 n/a n/ a 2,000,000 n/a Not Beneficial 044 - Use fire water system as backup for steam

,,r IP2-044 2,432,328 S,llQ,691 n/a frY~/a ~t l,656,000 3,073,130 Retained generator inventory.

~

§'

045 - Replace current pilot operated relief valves IP2-045 with larger ones such that only one is required 667,806 1,405,907 n/a n/a 2,700,000 n/ a Not Beneficial for successful feed and bleed.

046 - Modify emergency operating procedures IP2-046 for ability to align diesel power to more air -

0 0

n/a n/a 82,000 n/ a Not Beneficial compressors.

IP2-047 047 - Add an independent boron injection 0

0 n/a n/a 300,000 n/ a Not Beneficial system.

048 - Add a system of relief valves that prevent IP2-048 equipment damage from a pressure spike during 105,981 223,119 n/a n/a 615,000 n/a Not Beneficial an ATWS.

IP2-049 049 - Install motor generator set trip breakers in 32,541 68,508 n/a n/a 716,000 n/a Not Beneficial control room.

IP-RPT-16-00078, Rev. 0 Page 31 of 86

IP-RPT-16-00078 Indian Point RAI CLl-16-07 SAMA Cost-Benefit Sensitivities Revision 0 Page 32 of 84 Table 10- Case 4 Sensitivity SAMA Results(11 Tl-SGTR Tl-SGTR Estimated Estimated Phase II Description Baseline Benefit With Benefit Benefit With Cost (IP-Cost (NL-Conclusion SAMA Benefit Uncertainty Without Uncertainty RPT 14-143)

Uncertainty 00044)

IP2-050 050 - Provide capability to remove power from 32,541 68,508 n/a n/a 90,000 n/a Not Beneficial the bus powering the control rods.

IP2-051 051-Provide digital large break LOCA 0

0 n/a n/a 2,036,000 n/a Not Beneficial protection.

IP2-052 052 - Install secondary side guard pipes up to 335,283 705,859 457,980 964,168 1,100,000 n/a Not Beneficial the MSIVs.

IP2-053 053 - Keep both pressurizer PORV block valves open.

659, 715 1,388,873 n/a n/a 800,000 1,471,234 Not Beneficial IP2-o54 054 - Install flood alarm in the 480V switchgear room.

5,796,276 12,202,686 n/a n/a 200,000 458,843 Retained 055 - Perform a hardware modification to allow IP2-055 high-head recirculation from either RHR heat 0

0 n/a n/a 1,330,000 n/a Not Beneficial exchanger.

IP2-056 056 - Keep RHR heat exchanger discharge motor 48,723 102,574 n/a n/a 82,000 1,704,938 Not Beneficial operated valves (MOVs) normally open.

IP2-057 057 - Provide DC power backup for the PORVs.

89,800 189,052 n/a n/a 376,000 n/a Not Beneficial 058 - Provide procedural guidance to allow high-IP2-058 head recirculation from either RHR heat 0

0 n/a n/a 82,000 n/a Not Beneficial exchanger.

059 - Re-install the low pressure suction trip on IP2-059 the AFW pumps and enhance procedures to 24,450 51,474 n/a n/a 318,000 n/a Not Beneficial respond to loss of the normal suction path.

IP-RPT-16-00078, Rev. 0 Page 32 of 86

Indian Point RAI CLl-16-07 SAMA Cost-Benefit Sensitivities IP-RPT-16-00078 Revision O Page 33 of 84 Phase II SAMA IP2-061 IP2-062 IP2-063 IP2-064 IP2Jb6s IP2-066 IP2-067 IP2-068 Description 060 - Provide added protection against flood propagation from stairwell 4 intc!i' the 480V

$Witchgear r~.

lliii*

061 - Provide added protection against flogd propagation from the deluge room into the 480V switchgear r!)Om,i!

dell 062 - Provide a hard-wired a,nnection to ah SI pump from ASSS power supply.

063 - Provide a water-tight door for add itional protection of the RHR pumps against fl ooding.

064 - Provide backup cooling water source for the CCW heat exchangers.

065~ Upgrade the ASSS to allow timely restoration of seal injection and cooling.

>Sf' 066 - Harden the EOG building and fuel oil transfer pumps against tomados and high winds.

067 - Provide hardware connections to allow the primary water system to cool the charging pumps.

068 - Provide independent source of cooling for the recirculation pump motors.

IP-RPT-16-00078, Rev. 0 Table 10 - Case 4 Sensitivity SAMA Resultsl1l Baseline Benefit 1,316,236

~!1 2,&77,688 891,064 32,452 40,632

-<B+

5,796,276 l*ffe*

h:jl, 2,546,745 8,091 8,091 Benefit With Uncertainty 2,771,024 6,058,291 1,875,925 if;

¥ 68,320 85,541 12,202,686 5,361,568 17,033 17,033 Tl-SGTR Benefit Without Uncertainty n/a n/a n/a

&t n/a n/a n/a n/a n/a n/a Page 33 of 86 Tl-SGTR Benefit With Uncertainty n/a n/a n/a ii n/a n/a n/a n/a n/a n/a Estimated Cost (IP-RPT 00044) 216,000 192,000 1,500,000 324,000 710,000 560,000 1

33,500,000 576,000 710,000 Estimated Cost (NL-14-143) 721,303 Conclusion K

L.

{;;

Retained fi#~

'{~ti 943,792 Retained 1,662,692 n/a n/a

<¥ 1,859,587 n/a n/a n/a Retained Not Beneficial Not Beneficial

-o;i Retained Not Beneficial Not Beneficial Not Beneficial

IP-RPT-16-00078 Indian Point RAI CLl-16-07 SAMA Cost-Benefit Sensitivities Revision 0 Page 34 of 84 Table 10- Case 4 Sensitivity SAMA Results111 Tl-SGTR Tl-SGTR Estimated Estimated Phase II Description Baseline Benefit With Benefit Benefit With Cost (IP-Cost (NL-Conclusion SAMA Benefit Uncertainty Without Uncertainty RPT 14-143)

Uncertainty 00044)

Not numbered

Use a gagging device to dose a IP2-GAG stuck open main steam safety valve following a n/a 13,000,000 n/a n/a 50,000 453,745 Retained steam generator tube rupture.

IP3-001 001 - Create an independent RCP seal injection 236,610 342,913 296,021 429,016 1,137,000 n/a Not Beneficial system with a dedicated diesel.

IP3-002 002 - Create an independent RCP seal injection 213,104 308,847 n/a n/a 1,000,000 n/a Not Beneficial system without a dedicated diesel.

IP3-003 003 - Install an additional CCW pump.

0 0

n/a n/a 1,500,000 n/a Not Beneficial 004 - Improved ability to cool the RHR heat IP3-004 exchangers by allowing manual alignment of the 130,575 189,240 n/a n/a 565,000 n/a Not Beneficial fire protection system.

IP3-005 005 - Install a filtered containment vent to 1,556,574 2,255,904 n/a n/a 5,700,000 n/a Not Beneficial provide fission product scrubbing.

006 - Create a large concrete crucible with heat IP3-006 removal potential under the base mat to contain 5,275,716 7,645,965 n/a n/a 108,000,000 n/a Not Beneficial molten core debris.

+,

w IPS-007 007 - Create a reactor cavity flooding system.

5,275,716 7,645,965 n/a n/a 4,100,000 1,874,933 Retained f&

IP3-008 008 - Create a core melt source reduction system.

5,275,716 7,645,965 n/a n/a 90,000,000 n/a Not Beneficial IP-RPT-16-00078, Rev. 0 Page 34 of 86

IP-RPT-16-00078 Indian Point RAI CLl-16-07 SAMA Cost-Benefit Sensitivities Revision 0 Page 35 of 84 Table 10- Case 4 Sensitivity SAMA Results(11 Tl-SGTR Tl-SGTR Estimated Estimated Phase II Description Baseline Benefit With Benefit Benefit With Cost (IP-Cost (NL-Conclusion SAMA Benefit Uncertainty Without Uncertainty RPT 14-143)

Uncertainty 00044)

IP3-009 009 - Provide means to inert containment.

2,530,918 3,667,996 n/a n/a 10,900,000 n/a Not Beneficial IP3-010 010 - Use the fire protection system as a backup 0

0 n/a n/a 565,000 n/a Not Beneficial source for the containment spray system.

IP3-011 011 - Install a passive containment spray system.

0 0

n/a n/a 2,000,000 n/a Not Beneficial 012 - Increase the depth of the concrete base IP3-012 mat or use an alternative concrete material to 926,815 1,343,210 n/a n/a 5,000,000 n/a Not Beneficial ensure melt-through does not occur.

IP3-013 013 - Construct a building connected to primary 5,180,658 7,508,199 n/a n/a 61,000,000 n/a Not Beneficial containment that is maintained at a vacuum.

IP3-014 014 - Install a redundant containment spray system.

0 0

n/a n/a 5,800,000 n/a Not Beneficial 015 - Erect a barrier that provides containment IP3-015 liner protection from ejected core debris at high 1,259,518 1,825,388 n/a n/a 5,500,000 n/a Not Beneficial pressure.

016 - Install a highly reliable steam generator IP3-016 shell-side heat removal system that relies on 1,520,539 2,203,680 1,532,421 2,220,900 7,400,000 n/a Not Beneficial natural circulation and stored water sources.

017 - Increase secondary side pressure capacity IP3-017 such that an SGTR would not cause the relief 14,364,337 20,817,880 23,347,312 33,836,685 100,000,000 n/a Not Beneficial valves to lift.

IP-RPT-16-00078, Rev. 0 Page 35 of 86

IP-RPT-16-00078 Indian Point RAI CLl-16-07 SAMA Cost-Benefit Sensitivities Revision O Page 36 of 84 Table 10- Case 4 Sensitivity SAMA Results(1l Tl-SGTR Tl-SGTR Estimated Estimated Phase II Description Baseline Benefit With Benefit Benefit With Cost (IP-Cost (NL-Conclusion SAMA Benefit Uncertainty Without Uncertainty RPT 14-143)

Uncertainty 00044) 018 - Route the discharge from the main steam IP3-018 safety valves through a structure where a water 3,517,144 5,097,310 10,587,078 15,343,591 12,000,000 35,691,159 Not Beneficiat spray would condense the steam and remove most of the fission products.

IP3-019 019 - Install additional pressure or leak 2,316,779 3,357,650 n/a n/a 2,800,000 6,369,223 Not Beneficial monitoring instrumentation for ISLOCAs.

IP3-020 020 - Add redundant and diverse limit switches 1,128,684 1,635,773 n/a n/a 4,000,000 n/a Not Beneficial to each containment isolation valve.

IP3-021 021 - Increase leak testing of valves in ISLOCA 1,128,684 1,635,773 n/a n/a 10,604,000 n/a Not Beneficial paths.

IP3-022 022 - Ensure all ISLOCA releases are scrubbed.

2,316,779 3,357,650 n/a n/a 9,700,000 n/a Not Beneficial IP3-023 023 - Improve MSIV design.

0 0

n/a n/a 476,000 n/a Not Beneficial IP3-024 024 - Provide additional DC battery capacity.

47,141 68,320 n/a n/a 1,875,000 n/a Not Beneficial IP3-025 025 - Use fuel cells instead of lead-acid 47,141 68,320 n/a n/a 2,000,000 n/a Not Beneficial batteries.

IP3-026 026 - Increase/ improve DC bus load shedding.

47,141 68,320 n/a n/a 460,000 n/a Not Beneficial IP3-027 027 - Create AC power cross-tie capability with 70,647 102,387 n/a n/a 1,156,000 n/a Not Beneficial other unit.

IP3-028 028 - Create a backup source for diesel cooling 11,753 17,033 n/a n/a 1,700,000 n/a Not Beneficial (not from existing system).

IP-RPT-16-00078, Rev. 0 Page 36 of 86

IP-RPT-16-00078 Indian Point RAI CLl-16-07 SAMA Cost-Benefit Sensitivities Revision 0 Page 37 of 84 Table 10 - Case 4 Sensitivity SAMA Results(1l Tl-SGTR Tl-SGTR Estimated Estimated Phase II Description Baseline Benefit With Benefit Benefit With Cost (IP-Cost (NL-Conclusion SAMA Benefit Uncertainty Without Uncertainty RPT 14-143)

Uncertainty 00044)

IP3-029 029 - Use fire protection system as a backup 11,753 17,033 n/a n/a 497,000 n/a Not Beneficial source for diesel cooling.

IP3-030 030 - Provide a portable diesel-driven battery 284,656 412,546 296,539 429,766 938,000 n/a Not Beneficial charger.

031 - Convert under-voltage, AFW and reactor IP3-031 protective system actuation signals from 2-out-118,822 172,206 n/a n/a 1,254,000 n/a Not Beneficial of-4 to 3-out-of-4 logic.

IP3-032 032 - Provide capability for diesel-driven, low 23,764 34,441 n/a n/a 632,000 n/a Not Beneficial pressure vessel makeup.

IP3-033 033 - Provide an additional high pressure 118,693 172,019 n/a n/a 5,000,000 n/a Not Beneficial injection pump with independent diesel.

IP3-034 034 - Create automatic swap-over to 591,137 856,721 n/a n/a 1,000,000 n/a Not Beneficial recirculation upon RWST depletion.

IP3-035 035 - Provide capability for alternate injection 23,764 34,441 n/a n/a 750,000 n/a Not Beneficial via diesel-driven fire pump.

036 - Throttle low pressure injection pumps IP3-036 earlier in medium or large-break LOCAs to 11,753 17,033 n/a n/a 82,000 n/a Not Beneficial maintain reactor water storage tank inventory.

IP3-037 037 - Replace two of three motor-driven SI 118,693 172,019 n/a n/a 2,000,000 n/a Not Beneficial pumps with diesel-powered pumps.

IP3-038 038 - Create/enhance a reactor coolant 308,809 447,549 n/a n/a 4,600,000 n/a Not Beneficial depressurization system.

IP-RPT-16-00078, Rev. 0 Page 37 of 86

IP-RPT-16-00078 Indian Point RAI CLl-16-07 SAMA Cost-Benefit Sensitivities Revision 0 Page 38 of 84 Table 10- Case 4 Sensitivity SAMA Results(1)

Tl-SGTR Tl-SGTR Estimated Estimated Phase II Description Baseline Benefit With Benefit Benefit With Cost (IP-Cost (NL-Conclusion SAMA Benefit Uncertainty Without RPT Uncertainty Uncertainty 00044)14-143)

IP3-039 039 - Install a digital feed water upgrade.

330,892 479,554 n/a n/a 900,000 n/a Not Beneficial IP3-040 040 - Provide automatic nitrogen backup to 237,516 344,225 296,927 430,329 950,000 n/a Not Beneficial steam generator atmospheric dump valves.

IP3-041 041 - Add a motor-driven feedwater pump.

330,892 479,554 n/a n/a 2,000,000 n/a Not Beneficial 042 - Provide hookup for portable generators to IP3-042 power the turbine-driven AFW pump after 47,141 68,320 n/a n/a 1,072,000 n/a Not Beneficial station batteries are depleted.

IP3-043 043 - Use fire water system as backup for steam 450,490 652,885 509,902 738,988 1,656,000 n/a Not Beneficial generator inventory.

044 - Replace current pilot operated relief valves IP3-044 with larger ones such that only one is required 1,365,811 1,979,436 n/a n/a 2,700,000 n/a Not Beneficial for successful feed and bleed.

IP3-045 045 - Add an independent boron injection system.

0 0

n/a n/a 300,000 n/a Not Beneficial 046 - Add a system of relief valves that prevent IP3-046 equipment damage from a pressure spike during 283,622 411,046 n/a n/a 615,000 n/a Not Beneficial an ATWS.

IP3-047 047 - Install motor generator set trip breakers in 35,388 51,287 n/a n/a 716,000 n/a Not Beneficial control room.

IP3-048 048 - Provide capability to remove power from 35,388 51,287 n/a n/a 90,000 n/a Not Beneficial the bus powering the control rods.

IP-RPT-16-00078, Rev. 0 Page 38 of 86

IP-RPT-16-00078 Indian Point RAI CLl-16-07 SAMA Cost-Benefit Sensitivities Revision 0 Page 39 of 84 Table 10- Case 4 Sensitivity SAMA Results(1I Tl-SGTR Tl-SGTR Estimated Estimated Phase II Description Baseline Benefit With Benefit Benefit With Cost (IP-Cost (NL-Conclusion SAMA Benefit Uncertainty Without Uncertainty RPT 14-143)

Uncertainty 00044)

IP3-049 049 - Provide digital large break LOCA 0

0 protection.

n/ a n/a 2,036,000 n/a Not Beneficial IP3-050 050 - Install secondary side guard pipes up to 2,565,918 3,718,721 n/a n/a 9,671,000 n/ a Not Beneficial the MSIVs.

IP3-051 051 - Operator action: Align main feedwater for 23,635 34,254 n/a n/a 55,000 n/a Not Beneficial secondary heat removal.

IP3-052 052

Open dty water S:!APply valve for 308,809 "447'.549 n/a 1

n/aiii so:ooo 4'>ft.......

Retained alternative AFW pump suction.

iii)

'N.

b Mi M

R 053 - Install a.n excess flow valve to reduce the

' n/a n/a '

,);:

Retained IP3-0S3 risk associated with hydrogen explosions. **

486.913 705,671 228,000 344,599 x

jg Ri%

{!lii

!ifo iR IP3-054 054 - Provide DC power backup for the PORVs.

0 0

n/a n/a 376,000 n/a Not Beneficial 055

Provide\\flard-wired conne1'4lon to a SI or ii

'.fili\\:.

IP3-055 RHR pump fl'Qm the Appendix R bus (MCC 4,263,267 6,178,64&

n/a n/a.

1,288,000 y

1,60!,S~q

,:!!talned 312A).

'YfW IP3-056 056 - Install pneumatic controls and indication 47,141 68,320 n/a n/a 982,000 n/a Not Beneficial for the turbine-driven AFW pump.

IP3-057 057 - Provide backup cooling water source for 59,023 85,541 n/a n/a 109,000 n/a Not Beneficial the CCW heat exchangers.

IP3-058 058 - Provide automatic DC power backup.

94,282 136,640 n/a n/a 1,868,000 n/a Not Beneficial 059 - Provide hardware connections to allow the IP3-059 primary water system to cool the charging 0

0 n/a n/a 576,000 n/a Not Beneficial pumps.

IP-RPT-16-00078, Rev. 0 Page 39 of 86

Indian Point RAI CLl-16-07 SAMA Cost-Benefit Sensitivities IP-RPT-16-00078 Revision 0 Page 40 of 84 Table 10- Case 4 Sensitivity SAMA Results!1l Phase II SAMA IP3-060 IP3-061 IP3-062 IP3-GAG (1)

Leaend:

Description Baseline Benefit 060 - Provide independent source of cooling for 0

the recirculation pump motors.

061 - Upgrade the ASSS to allow timely 4,S36,430 restoration of seal injection and cooling.

062 - Install flood alarm In the 480 VAC 4,536,430 switchgear room.

Not numbered - Use a gagging device to dose a stuck open main steam safety valve following a n/a steam generator tube rupture.

green highlight= SAMAs retained in Case 0, baseline case.

lavender highlight = SAMAs evaluated for Tl-SGTR.

Benefit With Uncertainty 0

6,574,536 6,574,536 19,000,000 yellow highlight= SAMA newly retained in Case 4, revised baseline case red text= SAMAs with NL-14-143 estimated costs.

Tl-SGTR Benefit Without Uncertainty n/a n/a n/a n/a IP-RPT-16-00078, Rev. 0 Page 40 of 86 Tl-SGTR Benefit With Uncertainty n/a n/a n/a n/a Estimated Estimated Cost (IP-Cost (NL-Conclusion RPT 14-143) 00044) 710,000 n/a Not Beneficial 560,000 2,282,668 Retained 196,800 496,071 Retained 50,000 453,745 Retained

IP-RPT-1 6-00078 Indian Point RAI CLl-1 6-07 SAMA Cost-Benefit Sensitivities Revision O Page 41 of 84 Table 11 - Case 5 Sensitivity SAMA Results(1>

Phase Tl-SGTR Estimated II Description Baseline Benefit Estimated Cost (IP-Cost (NL-Conclusion Benefit Without RPT-09-00044)

SAMA Uncertainty 14-143)

IP2-001 001 - Create an independent RCP seal 456,555 497,454 1,137,000 n/a Not Beneficial injection system with a dedicated diesel.

IP2-002 002 - Create an independent RCP seal 440,374 n/a 1,000,000 n/a Not Beneficial injection system without a dedicated diesel.

IP2-003 003 - Install an additional CCW pump.

0 n/a 1,500,000 n/a Not Beneficial IP2-004 004 - Enhance procedural guidance for use of 48,723 n/a 1,750,000 n/a Not Beneficial service water pumps.

005 - Improve ability to cool the RHR heat IP2-005 exchangers by allowing manual alignment of 105,892 n/a 565,000 n/a Not Beneficial the fire protection system.

IP2-006 006 - Add a diesel building high temperature 24,361 24,361 274,000 n/a Not Beneficial alarm.

IP2-007 007 - Install a filtered containment vent to 2,110,390 n/a 5,700,000 n/a Not Beneficial provide fission product scrubbing.

008 - Create a large concrete crucible with IP2-008 heat removal potential under the base mat 9,414,955 n/ a 108,000,000 n/a Not Beneficial to contain molten core debris.

IP2..(J()9 009-Create a reactor cavity flooding system.

9,414,955 n/a 4,100,000 1,741,724 Retained IP-RPT-16-00078, Rev. 0 Page 41 of 86

IP-RPT-16-00078 Indian Point RAI CLl-16-07 SAMA Cost-Benefit Sensitivities Revision 0 Page 42 of 84 Table 11 - Case 5 Sensitivity SAMA Results<11 Phase Tl-SGTR Estimated II Description Baseline Benefit Estimated Cost (IP-Cost (NL-Conclusion Benefit Without RPT-09-00044)

SAMA Uncertainty 14-143)

IP2-010 010 - Create a core melt source reduction system.

9,414,955 n/a 90,000,000 n/ a Not Beneficial IP2-011 011 - Provide a means to inert containment.

5,259,614 n/a 10,900,000 n/ a Not Beneficial 012 - Use the fire protection system as a IP2-012 backup source for the containment spray 0

n/a 565,000 n/ a Not Beneficial system.

IP2-013 013 - Install a passive containment spray system.

0 n/a 2,000,000 n/a Not Beneficial 014 - Increase the depth of the concrete IP2-014 base mat or use an alternative concrete 1,456,005 n/a 5,000,000 n/a Not Beneficial material to ensure melt-through does not occur.

015 - Construct a building connected to IP2-015 primary containment that is maintained at a 9,349,516 n/a 61,000,000 n/a Not Beneficial vacuum.

IP2-016 016 - Install a redundant containment spray system.

0 n/a 5,800,000 n/a Not Beneficial 017 - Erect a barrier that provides IP2-017 containment liner protection from ejected 3,296,461 n/a 5,500,000 n/a Not Beneficial core debris at high pressure.

018 - Install a highly reliable steam generator IP2-018 shell-side heat removal system that relies on 114,517 n/a 7,400,000 n/ a Not Beneficial natural circulation and stored water sources.

IP-RPT-16-00078, Rev. 0 Page 42 of 86

Indian Point RAI CLl-16-07 SAMA Cost-Benefit Sensitivities IP-RPT-16-00078 Revision 0 Page 43 of 84 Table 11 - Case 5 Sensitivity SAMA Results(1>

Phase Tl-SGTR Estimated II Description Baseline Benefit Estimated Cost (IP-Cost (NL-SAMA Benefit Without RPT-09-00044)14-143)

Uncertainty 019 - Increase secondary side pressure IP2-019 capacity such that a SGTR would not cause 10,911,414 n/a 100,000,000 n/a the relief valves to lift.

020 - Route the discharge from the main steam safety valves through a structure IP2-020 where a water spray would condense the 1,300,589 n/a 9,700,000 n/a steam and remove most of the fission products.

IP2-021 021 - Install additional pressure or leak 4,106,084 n/a 3,200,000 4,632,227 monitoring instrumentation for ISLOCAs.

022 - Add redundant and diverse limit IP2-022 switches to each containment isolation 2,053,042 n/a 2,200,000 7,692,784 valve.

IP2-023 023 - Increase leak testing of valves in 2,053,042 n/a 7,964,000 n/a ISLOCA paths.

IP2-024 024 - Ensure all ISLOCA releases are 4,106,084 n/a 9,700,000 n/a scrubbed.

IP2-025 025 - Improve MSIV design.

212,675 319,012 476,000 n/a IP2-026 026 - Provide additional DC battery capacity.

48,723 n/a 1,875,000 n/a IP2-027 027 - Use fuel cells instead of lead-acid 48,723 n/a 2,000,000 n/a batteries.

IP2-C>28 028 - Provide a portable diesel-driven 1,921,453 n/a 938,000 2,154,767 battery charier.

IP2-029 029 - Increase/ improve DC bus load 48,723 48,723 460,000 n/a shedding.

IP-RPT-16-00078, Rev. 0 Page 43 of 86 Conclusion Not Beneficial Not Beneficial Not Beneficial Not Beneficial Not Beneficial Not Beneficial Not Beneficial Not Beneficial Not Beneficial Not Beneficial Not Beneficial

IP-RPT-16-00078 Indian Point RAI CLl-16-07 SAMA Cost-Benefit Sensitivities Revision 0 Page 44 of 84 Table 11 - Case 5 Sensitivity SAMA Results 11>

Phase Tl-SGTR Estimated II Description Baseline Benefit Estimated Cost (IP-Cost (NL-Conclusion SAMA Benefit Without RPT-09-00044)14-143)

Uncertainty IP2-030 030 - Create AC power cross-tie capability 56,813 n/a 1,156,000 n/a Not Beneficial with other unit.

IP2-031 031 - Create a backup source for diesel 32,452 n/a 1,700,000 n/a Not Beneficial cooling (not from existing system).

IP2-032 032 - Use fire protection system as a backup 32,452 n/a 497,000 n/a Not Beneficial source for diesel cooling.

033 - Convert under-voltage AFW and IP2-033 reactor protective system actuation signals 0

n/a 1,254,000 n/a Not Beneficial from 2-out-of-4 to 3-out-of-4 logic.

IP2-034 034 - Provide capability for diesel-driven, low 0

n/a 632,000 n/a Not Beneficial pressure vessel makeup.

IP2-035 035 - Provide an additional high pressure 73,529 n/a 5,000,000 n/a Not Beneficial injection pump with independent diesel.

IP2-036 036 - Create automatic swap-over to 138,344 n/a 1,000,000 n/a Not Beneficial recirculation cooling upon RW5T depletion.

IP2-037 037 - Provide capability for alternate 0

n/a 750,000 n/a Not Beneficial injection via diesel-driven fire pump.

038 - Throttle low pressure injection pumps IP2-038 earlier in medium or large-break LOCAs to 8,091 n/a 82,000 n/a Not Beneficial maintain reactor water storage tank inventory.

IP-RPT-16-00078, Rev. 0 Page 44 of 86

Indian Point RAI CLl-16-07 SAMA Cost-Benefit Sensitivities IP-RPT-16-00078 Revision 0 Page 45 of 84 Table 11 - Case 5 Sensitivity SAMA Results<1l Phase Tl-SGTR Estimated II Description Baseline Benefit Estimated Cost (IP-Cost (NL-SAMA Benefit Without RPT-09-00044)14-143)

Uncertainty IP2-039 039 - Replace two of three motor-driven SI 73,529 n/a 2,000,000 n/a pumps with diesel-powered pumps.

IP2-040 040 - Create/enhance a reactor coolant 956,859 956,859 2,000,000 n/a depressurization system.

IP2-041 041 - Install a digital feed water upgrade.

220,053 n/a 900,000 n/a IP2-042 042 - Provide automatic nitrogen backup to 57,259 n/a 214,000 n/a steam generator atmospheric dump valves.

IP2-043 043 - Add a motor-driven feed water pump.

220,053 n/a 2,000,000 n/a IP2-044 044 - Use fire water system as backup for 3,201,230 n/a 1,656,000 3,073,130 steam generator inventory.

045 - Replace current pilot operated relief IP2-045 valves with larger ones such that only one is 798,683 n/a 2,700,000 n/a required for successful feed and bleed.

046 - Modify emergency operating IP2-046 procedures for ability to align diesel power 0

n/a 82,000 n/a to more air compressors.

IP2-047 047 - Add an independent boron injection system.

0 n/a 300,000 n/a 048 - Add a system of relief valves that IP2-048 prevent equipment damage from a pressure 105,981 n/a 615,000 n/a spike during an ATWS.

IP-RPT-16-00078, Rev. 0 Page 45 of 86 Conclusion Not Beneficial Not Beneficial Not Beneficial Not Beneficial Not Beneficial Retained Not Beneficial Not Beneficial Not Beneficial Not Beneficial

Indian Point RAI CLl-16-07 SAMA Cost-Benefit Sensitivities IP-RPT-16-00078 Revision 0 Page 46 of 84 Table 11 - Case 5 Sensitivity SAMA Results(1I Phase Tl-SGTR Estimated II Description Baseline Benefit Estimated Cost (IP-Cost (NL-SAMA Benefit Without RPT-09-00044)14-143)

Uncertainty IP2-049 049 - Install motor generator set trip 32,541 n/a 716,000 n/a breakers in control room.

IP2-050 050 - Provide capability to remove power 32,541 n/a 90,000 n/a from the bus powering the control rods.

IP2-051 051-Provide digital large break LOCA 0

n/a 2,036,000 n/a protection.

IP2-052 052 - Install secondary side guard pipes up to 556,138 817,891 1,100,000 n/a the MSIVs.

IP2-053 053 - Keep both pressurizer PORV block n/a 800,000 1,471,234 valves open.

IP2-054

~/a 200,000 458,843 '

i</

055 - Perform a hardware modification to IP2-055 allow high-head recirculation from either 0

n/a 1,330,000 n/a RHR heat exchanger.

056 - Keep RHR heat exchanger discharge IP2-056 motor operated valves (MOVs) normally 48,723 n/a 82,000 1,704,938 open.

IP2-057 057 - Provide DC power backup for the 89,800 n/a 376,000 n/a PO RVs.

058 - Provide procedural guidance to allow IP2-058 high-head recirculation from either RHR heat 0

n/a 82,000 n/a exchanger.

IP-RPT-16-00078, Rev. 0 Page 46 of 86 Conclusion Not Beneficial Not Beneficial Not Beneficial Not Beneficial Not Beneficial Retained Not Beneficial Not Beneficial Not Beneficial Not Beneficial

Indian Point RAI CLl-16-07 SAMA Cost-Benefit Sensitivities IP-RPT-16-00078 Revision O Page 47 of 84 Table 11 - Case 5 Sensitivity SAMA Results<1l Phase Baseline Estimated Cost (IP-Estimated II Description Cost (NL-SAMA Benefit RPT-09-00044)14-143) 059 - Re-install the low pressure suction trip IP2-059 on the AFW pumps and enhance procedures 24,450 318,000 n/a to respond to loss of the normal suction path.

060 - Provide added protection against flood 1P2-060 propagation from stalrwell 4 into the 48QV 216,000 c721,303 switch..

~,ro9m.

061 - Provide added protection again5t flood 1P2'-061 propagation from the deluge room into the 192,000 943,792 480V switchgear room.

IP2-062 062 - Provide a hard.wired.connection to an 1,500,000 1,6~2,69~ii SI p1,1mp from ~SSS pewer supply.

063 - Provide a water-tight door for IP2-063 additional protection of the RHR pumps 32,452 324,000 n/a against flooding.

IP2-064 064 - Provide backup cooling water source 710,000 n/ a for the CON heat exchangers.

w ~4

'}§ IP2-06S 065 - Upgr.feihe,~

to allow timely 560,000 1,859,587 restoration* of $t!al injection and cooling.

w,*\\;,

066 - Harden the EDG building and fuel oil IP2-066 transfer pumps against tornados and high 3,070,252 33,500,000 n/a winds.

067 - Provide hardware connections to allow IP2-067 the primary water system to cool the 8,091 576,000 n/a charging pumps.

IP-RPT-16-00078, Rev. 0 Page 47 of 86 Conclusion Not Beneficial Retained Retained Not Beneficial Not Beneficial Not Beneficial Retained Not Beneficial Not Beneficial

Indian Point RAI CLl-16-07 SAMA Cost-Benefit Sensitivities IP-RPT-16-00078 Revision 0 Page 48 of 84 Table 11 - Case 5 Sensitivity SAMA Results11>

Phase Baseline Estimated Cost (IP-Estimated II Description Cost (NL-SAMA Benefit RPT-09-00044)14-143)

IP2-068 068 - Provide independent source of cooling 8,091 710,000 n/a for the recirculation pump motors.

Not numbered* Use a PUing devfce to lP2-GAG clo$e a stuclc open main steam safety 'J.!!IVe nta 50,000 453,745 followlng a steam generator tube rupture.

(See Roond 2 RAI 6 ln Reference 2.)

IP3-001 001 - Create an independent RCP seal 307,904 1,137,000 n/ a injection system with a dedicated diesel.

IP3-002 002 - Create an independent RCP seal 272,516 1,000,000 n/a injection system without a dedicated diesel.

IP3-003 003 - Install an additional CCW pump.

0 1,500,000 n/a 004 - Improved ability to cool the RHR heat IP3-004 exchangers by allowing manual alignment of 189,987 565,000 n/ a the fire protection system.

IP3-005 005 - Install a filtered containment vent to 1,924,923 5,700,000 n/ a provide fission product scrubbing.

006 - Create a large concrete crucible with IP3-006 heat removal potential under the base mat 7,521,459 108,000,000 n/a to contain molten core debris.

IP3-007 007 - Cr~te a reactor ~. flooding sy§.tem.

4,100,000 11lP4,933&.

IP-RPT-16-00078, Rev. 0 Page 48 of 86 Conclusion Not Beneficial Retained Not Beneficial Not Beneficial Not Beneficial Not Beneficial Not Beneficial Not Beneficial Retained

IP-RPT-16-00078 Indian Point RAI CLl-16-07 SAMA Cost-Benefit Sensitivities Revision O Page 49 of 84 Table 11 - Case 5 Sensitivity SAMA Results11>

Phase Tl-SGTR Estimated II Description Baseline Benefit Estimated Cost (IP-Cost (NL-Conclusion SAMA Benefit Without RPT-09-00044)14-143)

Uncertainty IP3-008 008 - Create a core melt source reduction system.

7,521,459 n/a 90,000,000 n/ a Not Beneficial IP3-009 009 - Provide means to inert containment.

4,028,080 n/a 10,900,000 n/a Not Beneficial 010 - Use the fire protection system as a IP3-010 backup source for the containment spray 0

n/a 565,000 n/ a Not Beneficial system.

IP3-011 011 - Install a passive containment spray 0

n/ a 2,000,000 n/a Not Beneficial system.

012 - Increase the depth of the concrete IP3-012 base mat or use an alternative concrete 1,116,931 n/a 5,000,000 n/a Not Beneficial material to ensure melt-through does not occur.

013 - Construct a building connected to IP3-013 primary containment that is maintained at a 7,675,928 n/a 61,000,000 n/a Not Beneficial vacuum.

IP3-014 014 - Install a redundant containment spray system.

0 n/a 5,800,000 n/a Not Beneficial 015 - Erect a barrier that provides IP3-015 containment liner protection from ejected 2,269,508 n/a 5,500,000 n/a Not Beneficial core debris at high pressure.

016 - Install a highly reliable steam generator IP3-016 shell-side heat removal system that relies on 2,162,180 2,090,887 7,400,000 n/ a Not Beneficial natural circulation and stored water sources.

IP-RPT-16-00078, Rev. 0 Page 49 of 86

Indian Point RAI CLl-16-07 SAMA Cost-Benefit Sensitivities IP-RPT-16-00078 Revision 0 Page 50 of 84 Table 11 - Case 5 Sensitivity SAMA Results(1l Phase Tl-SGTR Estimated II Description Baseline Benefit Estimated Cost (IP-Cost (NL-Benefit Without RPT-09-00044)

SAMA Uncertainty 14-143) 017 - Increase secondary side pressure IP3-017 capacity such that an SGTR would not cause 27,708,095 45,044,287 100,000,000 n/a the relief valves to lift.

018 - Route the discharge from the main steam safety valves through a structure IP3-018 where a water spray would condense the 5,905,474 20,710,748 12,000,000 35,691,159 steam and remove most of the fission products.

IP3-019 019 - Install additional pressure or leak 4,526,876 n/a 2,800,000 6,369,223 monitoring instrumentation for ISLOCAs.

020 - Add redundant and diverse limit IP3-020 switches to each containment isolation 2,269,379 n/a 4,000,000 n/a valve.

IP3-021 021 - Increase leak testing of valves in 2,269,379 n/a 10,604,000 n/a ISLOCA paths.

IP3-022 022 - Ensure all ISLOCA releases are 4,526,876 n/a 9,700,000 n/a scrubbed.

IP3-023 023 - Improve MSIV design.

0 n/a 476,000 n/a IP3-024 024 - Provide additional DC battery capacity.

47,141 n/a 1,875,000 n/a IP3-025 025 - Use fuel cells instead of lead-acid 47,141 n/a 2,000,000 n/a batteries.

IP3-026 026 - Increase/ improve DC bus load 47,141 n/a 460,000 n/a shedding.

IP3-027 027 - Create AC power cross-tie capability 82,529 n/a 1,156,000 n/a with other unit.

IP-RPT-16-00078, Rev. 0 Page 50 of 86 Conclusion Not Beneficial Not Beneficial Not Beneficial Not Beneficial Not Beneficial Not Beneficial Not Beneficial Not Beneficial Not Beneficial Not Beneficial Not Beneficial

Indian Point RAI CLl-16-07 SAMA Cost-Benefit Sensitivities IP-RPT-16-00078 Revision 0 Page 51of84 Table 11 - Case 5 Sensitivity SAMA Results11>

Phase Tl-SGTR Estimated II Description Baseline Benefit Estimated Cost (IP-Cost (NL-SAMA Benefit Without RPT-09-00044)14-143)

Uncertainty IP3-028 028 - Create a backup source for diesel 23,635 n/a 1,700,000 n/a cooling (not from existing system).

IP3-029 029 - Use fire protection system as a backup 23,635 n/a 497,000 n/a source for diesel cooling.

IP3-030 030 - Provide a portable diesel-driven 344,068 415,361 938,000 n/a battery charger.

031 - Convert under-voltage, AFW and IP3-031 reactor protective system actuation signals 178,234 n/a 1,254,000 n/a from 2-out-of-4 to 3-out-of-4 logic.

IP3-032 032 - Provide capability for diesel-driven, low 83,176 n/a 632,000 n/a pressure vessel makeup.

IP3-033 033 - Provide an additional high pressure 189,987 n/a 5,000,000 n/a injection pump with independent diesel.

IP3-034 034 - Create automatic swap-over to 721,842 n/a 1,000,000 n/a recirculation upon RWST depletion.

IP3-035 035 - Provide capability for alternate 83,176 n/a 750,000 n/a injection via diesel-driven fire pump.

036 - Throttle low pressure injection pumps IP3-036 earlier in medium or large-break LOCAs to 23,635 n/a 82,000 n/a maintain reactor water storage tank inventory.

IP3-037 037 - Replace two of three motor-driven 51 189,987 n/a 2,000,000 n/a pumps with diesel-powered pumps.

IP-RPT-16-00078, Rev. 0 Page 51 of 86 Conclusion Not Beneficial Not Beneficial Not Beneficial Not Beneficial Not Beneficial Not Beneficial Not Beneficial Not Beneficial Not Beneficial Not Beneficial

Indian Point RAI CLl-16-07 SAMA Cost-Benefit Sensitivities IP-RPT-16-00078 Revision 0 Page 52 of 84 Table 11 - Case 5 Sensitivity SAMA Results11>

Phase Tl-SGTR Estimated II Description Baseline Benefit Estimated Cost (IP-Cost (NL-SAMA Benefit Without RPT-09-00044)14-143)

Uncertainty IP3-038 038 - Create/enhance a reactor coolant 427,631 n/a 4,600,000 n/a depressurization system.

IP3-039 039 - Install a digital feed water upgrade.

390,303 n/a 900,000 n/a IP3-040 040 - Provide automatic nitrogen backup to 356,338 356,338 950,000 n/a steam generator atmospheric dump valves.

IP3-041 041 - Add a motor-driven feedwater pump.

390,303 n/a 2,000,000 n/a 042 - Provide hookup for portable IP3-042 generators to power the turbine-driven AFW 47,141 n/a 1,072,000 n/a pump after station batteries are depleted.

IP3-043 043 - Use fire water system as backup for 640,606 640,606 1,656,000 n/a steam generator inventory.

044 - Replace current pilot operated relief IP3-044 valves with larger ones such that only one is 1,876,748 n/a 2,700,000 n/a required for successful feed and bleed.

IP3-045 045 - Add an independent boron injection system.

11,882 n/a 300,000 n/a 046 - Add a system of relief valves that IP3-046 prevent equipment damage from a pressure 283,622 n/a 615,000 n/a spike during an ATW5.

IP3-047 047 - Install motor generator set trip 35,388 n/a 716,000 n/a breakers in control room.

IP-RPT-16-00078, Rev. 0 Page 52 of 86 Conclusion Not Beneficial Not Beneficial Not Beneficial Not Beneficial Not Beneficial Not Beneficial Not Beneficial Not Beneficial Not Beneficial Not Beneficial

IP-RPT-16-00078 Indian Point RAI CLl-16-07 SAMA Cost-Benefit Sensitivities Revision O Page 53 of 84 Table 11 - Case 5 Sensitivity SAMA Results(1l Phase Tl-SGTR Estimated II Description Baseline Benefit Estimated Cost (IP-Cost (NL-Conclusion SAMA Benefit Without RPT-09-00044)14-143)

Uncertainty IP3-048 048 - Provide capability to remove power 35,388 n/a 90,000 n/a Not Beneficial from the bus powering the control rods.

IP3-049 049 - Provide digital large break LOCA 0

n/ a 2,036,000 n/a Not Beneficial protection.

IP3-050 050 - Install secondary side guard pipes up to 3,647,202 n/a 9,671,000 n/a Not Beneficial the MSIVs.

IP3-051 051 - Operator action: Align main feedwater 23,635 n/a 55,000 n/a Not Beneficial for secondary heat removal.

IP3--052 052 - Open city water ~upply valve for 439,514 n/a 50,000 Retained altematlve AFW pump suction.

IP3-053 053 - Install ao excess flow valve to reduce

~77,029 n/a 228,000 Retained the risk associated With hydrogen expJosions.

IP3-054 054 - Provide DC power backup for the 11,882 n/a 376,000 n/a Not Beneficial PO RVs.

055 - Provide hard-wired connection to a SI IP3--0SS or RHR pomp from tfie Appendix R bus (MCC

.S,938,664 n/a 1,288,000 l,~1,888 Retained 312A).

IP3-056 056 - Install pneumatic controls and 47,141 n/a 982,000 n/a Not Beneficial indication for the turbine-driven AFW pump.

IP3-057 057 - Provide backup cooling water source 118,434 n/a 109,000 n/a Retained for the CCW heat exchangers.

IP3-058 058 - Provide automatic DC power backup.

165,575 n/ a 1,868,000 n/a Not Beneficial IP-RPT-16-00078, Rev. 0 Page 53 of 86

Indian Point RAI CLl-16-07 SAMA Cost-Benefit Sensitivities IP-RPT-16-00078 Revision 0 Page 54 of 84 Table 11 - Case 5 Sensitivity SAMA Results(1l Phase II SAMA IP3-059 IP3-060 IP3-061 IP3-062 IP3-GAG Description 059 - Provide hardware connections to allow the primary water system to cool the charging pumps.

060 - Provide independent source of cooling for the recirculation pump motors.

061 - Upgrade the ASS'S to allow timelK restor~ton Qf seal lnJectjon and cooling.

062 - lnstall flood alann in the 480 VAC switchgear room.

Not numbered

Use a gagging device to close a stuck open main steam safety valve following a steam generator tube rupture.

(~e Rou"~

.~ RAI 6 in Reference 2.)

Baseline Benefit 11,882 11,882 (1)

Legend: green highlight= SAMAs retained in Case 0, baseline case.

lavender highlight = SAMAs evaluated for Tl-SGTR.

yellow highlight= SAMA newly retained in Case 4, revised baseline case red text= SAMAs with NL-14-143 estimated costs.

IP-RPT-16-00078, Rev. 0 Page 54 of 86 Estimated Cost (IP-Estimated Cost (NL-RPT-09-00044)14-143) 576,000 n/a 710,000 n/a 560,000 196,800 50,000 453;745 Conclusion Not Beneficial Not Beneficial Retained Retained Retalned

Indian Point RAI CLl-1 6-07 SAMA Cost-Benefit Sensitivities IP-RPT-16-00078 Revision 0 Page 55 of 84 Table 12-Case 7 Sensitivity SAMA Results(1>

Tl-SGTR Tl-SGTR Phase II Description Baseline Benefit With Benefit Benefit With SAMA Benefit Uncertainty Without Uncertainty Uncertainty IP2-001 001 - Create an independent RCP seal injection 317,499 668,418 325,679 685,639 system with a dedicated diesel.

IP2-002 002 - Create an independent RCP seal injection 301,317 634,352 n/a n/a system without a dedicated diesel.

IP2-003 003 - Install an additional CCW pump.

0 0

n/a n/a IP2-004 004 - Enhance procedural guidance for use of 40,543 85,353 n/a n/a service water pumps.

005 - Improve ability to cool the RHR heat IP2-005 exchangers by allowing manual alignment of the 56,813 119,607 n/a n/a fire protection system.

IP2-006 006 - Add a diesel building high temperature 16,182 34,066 24,361 51,287 alarm.

IP2-007 007 - Install a filtered containment vent to 1,488,724 3,134,157 n/a n/a provide fission product scrubbing.

008 - Create a large concrete crucible with heat IP2-008 removal potential under the base mat to contain 5,635,885 11,865,022 n/a n/a molten core debris.

fr Ji if!,\\

1'r~

009

Cre~e ~ re~o~, cal(lty ft()Q{fing SY$te1T1.

5,635,aBS 11,865,022 nfa n/a IP2-010 010 - Create a core melt source reduction system.

5,635,885 11,865,022 n/a n/a IP2-0ll 011 - Provide a means to inert containment.

2,805,673 5,906,680 n/a n/a IP-RPT-16-00078, Rev, 0 Page 55 of 86 Estimated Estimated Cost (IP-Cost (NL-Conclusion RPT 00044)14-143) 1,137,000 n/a Not Beneficial 1,000,000 n/ a Not Beneficial 1,500,000 n/a Not Beneficial 1,750,000 n/ a Not Beneficial 565,000 n/ a Not Beneficial 274,000 n/ a Not Beneficial 5,700,000 n/ a Not Beneficial 108,000,000 n/a Not Beneficial 4,1-00,000 1,741,724 Retained 90,000,000 n/ a Not Beneficial 10,900,000 n/ a Not Beneficial

IP-RPT-16-00078 Indian Point RAI CLl-16-07 SAMA Cost-Benefit Sensitivities Revision 0 Page 56 of 84 Table 12-Case 7 Sensitivity SAMA Results(1l Tl-SGTR Tl-SGTR Estimated Estimated Phase II Description Baseline Benefit With Benefit Benefit With Cost (IP-Cost (NL-Conclusion SAMA Benefit Uncertainty Without Uncertainty RPT 14-143)

Uncertainty 00044)

IP2-012 012 - Use the fire protection system as a backup 0

0 n/a n/a 565,000 n/a Not Beneficial source for the containment spray system.

IP2-013 013 - Install a passive containment spray system.

0 0

n/a n/a 2,000,000 n/a Not Beneficial 014 - Increase the depth of the concrete base IP2-014 mat or use an alternative concrete material to 1,022,476 2,152,580 n/a n/a 5,000,000 n/a Not Beneficial ensure melt-through does not occur.

IP2-015 015 - Construct a building connected to primary 5,333,232 11,227,858 n/a n/a 61,000,000 n/a Not Beneficial containment that is maintained at a vacuum.

IP2-016 016 - Install a redundant containment spray 0

0 system.

n/a n/a 5,800,000 n/a Not Beneficial 017 - Erect a barrier that provides containment IP2-017 liner protection from ejected core debris at high 1,668,680 3,513,011 n/a n/a 5,500,000 n/a Not Beneficial pressure.

018 - Install a highly reliable steam generator IP2-018 shell-side heat removal system that relies on 65,438 137,765 n/a n/a 7,400,000 n/a Not Beneficial natural circulation and stored water sources.

019 - Increase secondary side pressure capacity IP2-019 such that a SGTR would not cause the relief 5,496,383 11,571,333 n/a n/a 100,000,000 n/a Not Beneficial valves to lift.

IP-RPT-16-00078, Rev. 0 Page 56 of 86

IP-RPT-16-00078 Indian Point RAI CLl-16-07 SAMA Cost-Benefit Sensitivities Revision 0 Page 57 of 84 Table 12-Case 7 Sensitivity SAMA Results(1l Tl-SGTR Tl-SGTR Estimated Estimated Phase II Description Baseline Benefit With Benefit Benefit With Cost (IP-Cost (NL-Conclusion SAMA Benefit Uncertainty Without Uncertainty RPT 14-143)

Uncertainty 00044) 020 - Route the discharge from the main steam IP2-020 safety valves through a structure where a water 556,227 1,171,004 n/a n/a 9,700,000 n/a Not Beneficial spray would condense the steam and remove most of the fission products.

IP2-021 021 - Install additional pressure or leak 2,052,953 4,322,006 n/a n/a 3,200,000 4,632,227 Not Beneficial monitoring instrumentation for ISLOCAs.

IP2-022 022 - Add redundant and diverse limit switches 1,038,746 2,186,834 n/a n/a 2,200,000 7,692,784 Not Beneficial to each containment isolation valve.

IP2-023 023 - Increase leak testing of valves in ISLOCA 1,038,746 2,186,834 n/a n/a 7,964,000 n/a Not Beneficial paths.

IP2-024 024 - Ensure all ISLOCA releases are scrubbed.

2,052,953 4,322,006 n/a n/a 9,700,000 n/a Not Beneficial IP2-025 025 - Improve MSIV design.

81,798 172,206 147,236 309,972 476,000 n/a Not Beneficial IP2-026 026 - Provide additional DC battery capacity.

40,543 85,353 n/a n/a 1,875,000 n/a Not Beneficial IP2-027 027 - Use fuel cells instead of lead-acid 40,543 85,353 n/a n/a 2,000,000 n/a Not Beneficial batteries.

IP2-o28 028 - Pro\\/ide a JIOt!lible

-driven battery 1,168,913.

2,460,865 n/a n/a 938,000 JJ.

Retained chaf8er~

ii 11 2,154;767 @1*

rn F

" ) 11%

v w

IP2-029 029 - Increase/ improve DC bus load shedding.

40,543 85,353 48,723 102,574 460,000 n/a

Not Beneficial IP2-030 030 - Create AC power cross-tie capability with 48,634 102,387 n/a n/a 1,156,000 n/a Not Beneficial other unit.

IP-RPT-16-00078, Rev. 0 Page 57 of 86

IP-RPT-16-00078 Indian Point RAI CLl-16-07 SAMA Cost-Benefit Sensitivities Revision O Page 58 of 84 Table 12-Case 7 Sensitivity SAMA Results!1l Tl-SGTR Tl-SGTR Estimated Estimated Phase II Description Baseline Benefit With Benefit Benefit With Cost (IP-Cost (NL-Conclusion SAMA Benefit Uncertainty Without Uncertainty RPT 14-143)

Uncertainty 00044)

IP2-031 031 - Create a backup source for diesel cooling 32,452 68,320 n/a n/a 1,700,000 n/a Not Beneficial (not from existing system).

IP2-032 032 - Use fire protection system as a backup 32,452 68,320 n/a n/a 497,000 n/a Not Beneficial source for diesel cooling.

033 - Convert under-voltage AFW and reactor IP2-033 protective system actuation signals from 2-out-0 0

n/a n/a 1,254,000 n/a Not Beneficial of-4 to 3-out-of-4 logic.

IP2-034 034 - Provide capability for diesel-driven, low 0

0 n/a n/a 632,000 n/a Not Beneficial pressure vessel makeup.

IP2-035 035 - Provide an additional high pressure 24,450 51,474 n/a n/a 5,000,000 n/a Not Beneficial injection pump with independent diesel.

IP2-036 036 - Create automatic swap-over to 89,266 187,927 n/a n/a 1,000,000 n/a Not Beneficial recirculation cooling upon RWST depletion.

IP2-037 037 - Provide capability for alternate injection 0

0 n/a n/a 750,000 n/a Not Beneficial via diesel-driven fire pump.

038 - Throttle low pressure injection pumps IP2-038 earlier in medium or large-break LOCAs to 8,091 17,033 n/a n/a 82,000 n/a Not Beneficial maintain reactor water storage tank inventory.

IP2-039 039 - Replace two of three motor-driven SI 24,450 51,474 n/a n/a 2,000,000 n/a Not Beneficial pumps with diesel-powered pumps.

IP-RPT-16-00078, Rev. 0 Page 58 of 86

IP-RPT-16-00078 Indian Point RAI CLl-16-07 SAMA Cost-Benefit Sensitivities Revision 0 Page 59 of 84 Table 12 - Case 7 Sensitivity SAMA Results<1>

Tl-SGTR Tl-SGTR Estimated Estimated Phase II Description Baseline Benefit With Benefit Benefit With Cost (IP-Cost (NL-Conclusion SAMA Benefit Uncertainty Without Uncertainty RPT 14-143)

Uncertainty 00044)

IP2-040 040 - Create/ enhance a reactor coolant 482,430 1,015,643 482,430 1,015,643 2,000,000 n/ a Not Beneficial depressurization system.

IP2-041 041 - Install a digital feed water upgrade.

162,795 342,726 n/a n/a 900,000 n/ a Not Beneficial IP2-042 042 - Provide automatic nitrogen backup to 8,180 17,221 n/a n/ a 214,000 n/a Not Beneficial steam generator atmospheric dump valves.

IP2-043 043 - Add a motor-driven feed water pump.

162,795 342,726 n/ a n/a 2,000,000 n/a Not Beneficial IP2-044 044 - Use fire water system as backup for steam 2,121,496 4,466,307 n/a n/a 1,656,000 3,073,130 Retained generator inventory.

045 - Replace current pilot operated relief valves IP2-045 with larger ones such that only one is required 594,187 1,250,921 n/a n/a 2,700,000 n/a Not Beneficial for successful feed and bleed.

046 - Modify emergency operating procedures IP2-046 for ability to align diesel power to more air 0

0 n/a n/a 82,000 n/a Not Beneficial compressors.

IP2-047 047 - Add an independent boron injection 0

0 n/a n/a 300,000 n/a Not Beneficial system.

048 - Add a system of relief valves that prevent IP2-048 equipment damage from a pressure spike during 56,902 119,795 n/a n/a 615,000 n/a Not Beneficial an ATWS.

IP2-049 049 - Install motor generator set trip breakers in 24,361 51,287 n/a n/a 716,000 n/a Not Beneficial control room.

IP-RPT-16-00078, Rev. 0 Page 59 of 86

IP-RPT-16-00078 Indian Point RAI CLl-16-07 SAMA Cost-Benefit Sensitivities Revision O Page 60 of 84 Table 12-Case 7 Sensitivity SAMA Results!1l Tl-SGTR Tl-SGTR Estimated Estimated Phase II Description Baseline Benefit With Benefit Benefit With Cost (IP-Cost (NL-Conclusion SAMA Benefit Uncertainty Without Uncertainty RPT 14-143)

Uncertainty 00044)

IP2-050 050 - Provide capability to remove power from 24,361 51,287 n/a n/a 90,000 n/a Not Beneficial the bus powering the control rods.

IP2-051 051-Provide digital large break LOCA 0

0 n/a n/a 2,036,000 n/a Not Beneficial protection.

IP2-052 052 - Install secondary side guard pipes up to 286,204 602,535 384,362 809,183 1,100,000 n/a Not Beneficial the MSIVs.

IP2-053 053 - Keep both pressurizer PORV block valves 586,097 1,233,888 n/a n/a 800,000 1,471,234 Not Beneficial open.

IP2-o54 054 - Install flood alarm in the 480V switchgear 4,970,116 10,463,401 n/a n/a 200,000 458,843 Retained room.

.@rt 055 - Perform a hardware modification to allow IP2-055 high-head recirculation from either RHR heat 0

0 n/a n/a 1,330,000 n/a Not Beneficial exchanger.

IP2-056 056 - Keep RHR heat exchanger discharge motor 40,543 85,353 n/a n/a 82,000 1,704,938 Not Beneficial operated valves (MOVs) normally open.

IP2-057 057 - Provide DC power backup for the PORVs.

40,721 85,728 n/a n/a 376,000 n/a Not Beneficial 058 - Provide procedural guidance to allow high-IP2-058 head recirculation from either RHR heat 0

0 n/a n/a 82,000 n/a Not Beneficial exchanger.

059 - Re-install the low pressure suction trip on IP2-059 the AFW pumps and enhance procedures to 16,271 34,254 n/a n/a 318,000 n/a Not Beneficial respond to loss of the normal suction path.

IP-RPT-16-00078, Rev. 0 Page 60 of 86

IP-RPT-16-00078 Indian Point RAI CLl-1 6-07 SAMA Cost-Benefit Sensitivities Revision 0 Page 61 of 84 Table 12-Case 7 Sensitivity SAMA Results(1l Tl-SGTR Tl-SGTR Estimated Estimated Phase II Description Baseline Benefit With Benefit Benefit With Cost (IP-Cost (NL-Conclusion SAMA Benefit Uncertainty Without Uncertainty RPT 14-143)

Uncertainty 00044) 060 - Prolllde added protection against flood IP2-060 propagation from stl!irwell 4 Into the 480V 1,128,101 2,374,949 n/a n/a 216,000 7211303 Retained switchgear room.

ff@!\\

~

061 - Pro\\lide added protection against flood IP2-061 propagation from the deluge room into the 2,468,698 5,197,259 n/a n/a 192,000 943,792 Retained 480V switchgear room.

IP2-062 062 - Provide a hard-wired connection to an SI 768,367 1,617,616 841,986 1,772,601 1,500,000 1,662,692 Retained

'/

pump fro power supply.in wiff'

'Wfffel' IP2-063 063 - Provide a water-tight door for additional 32,452 68,320 n/a n/a 324,000 n/a Not Beneficial protection of the RHR pumps against flooding.

IP2-064 064 - Provide backup cooling water source for 32,452 68,320 n/a n/a 710,000 n/ a Not Beneficial the CCW heat exchangers.

~*

'@JWJ)P 1$1 wm1m IP2-06S 065 - Upgrade the ASSS to allow timely 4,970,116 10,463,401 n/a n/a 560,000 1,859,587 Retained restoration of seal injection and cooling.

066 - Harden t he EDG building and fuel oil IP2-066 transfer pumps against tomados and high 2,350,429 4,948,273 n/a n/a 33,500,000 n/ a Not Beneficial winds.

067 - Provide hardware connections to allow the IP2-067 primary water system to cool the charging 8,091 17,033 n/a n/a 576,000 n/a Not Beneficial pumps.

IP2-068 068 - Provide independent source of cooling for 8,091 17,033 n/a n/a 710,000 n/a Not Beneficial the recirculation pump motors.

IP-RPT-16-00078, Rev. 0 Page 61 of 86

Indian Point RAI CLl-16-07 SAMA Cost-Benefit Sensitivities IP-RPT-16-00078 Revision 0 Page 62 of 84 Phase II SAMA IP3-001 IP3-002 IP3-003 IP3-004 IP3-005 IP3-006 Description 001 - Create an independent RCP seal injection system with a dedicated diesel.

002 - Create an independent RCP seal injection system without a dedicated diesel.

003 - Install an additional CCW pump.

004 - Improved ability to cool the RHR heat exchangers by allowing manual alignment of the fire protection system.

005 - Install a filtered containment vent to provide fission product scrubbing.

006 - Create a large concrete crucible with heat removal potential under the base mat to contain molten core debris.

IP-RPT-16-00078, Rev. 0 Table 12-Case 7 Sensitivity SAMA Results(1)

Baseline Benefit 224,728 129,929 0

118,693 1,318,929 4,491,488 Benefit With Uncertainty 325,693 188,302 0

172,019 1,911,491 6,509,402 Tl-SGTR Benefit Without Uncertainty n/a n/a n/a n/a n/a Page 62 of 86 Tl-SGTR Benefit With Uncertainty n/a n/a n/a n/a n/a Estimated Cost (IP-RPT 00044) 1,137,000 1,000,000 1,500,000 565,000 5,700,000 108,000,000 Estimated Cost (NL-14-143) n/a n/a n/a n/a n/ a n/a Conclusion Not Beneficial Not Beneficial Not Beneficial Not Beneficial Not Beneficial

IP-RPT-16-00078 Indian Point RAI CLl-16-07 SAMA Cost-Benefit Sensitivities Revision 0 Page 63 of 84 Table 12-Case 7 Sensitivity SAMA Results(1l Tl-SGTR Tl-SGTR Estimated Estimated Phase II Description Baseline Benefit With Benefit Benefit With Cost (IP-Cost (NL-Conclusion SAMA Benefit Uncertainty Without Uncertainty RPT 14-143)

Uncertainty 00044)

IP3-009 009 - Provide means to inert containment.

2,115,039 3,065,274 n/a n/a 10,900,000 n/a Not Beneficial IP3-010 010 - Use the fire protection system as a backup 0

0 n/a n/a 565,000 n/a Not Beneficial source for the containment spray system.

IP3-011 011 - Install a passive containment spray 0

0 n/a n/a 2,000,000 n/ a Not Beneficial system.

012 - Increase the depth of the concrete base IP3-012 mat or use an alternative concrete material to 772,346 1,119,342 n/a n/a 5,000,000 n/a Not Beneficial ensure melt-through does not occur.

IP3-013 013 - Construct a building connected to primary 4,372,665 6,337,196 n/a n/a 61,000,000 n/ a Not Beneficial containment that is maintained at a vacuum.

IP3-014 014 - Install a redundant containment spray system.

0 0

n/a n/a 5,800,000 n/a Not Beneficial 015 - Erect a barrier that provides containment IP3-015 liner protection from ejected core debris at high 1,093,166 1,584,299 n/a n/a 5,500,000 n/a Not Beneficial pressure.

016 - Install a highly reliable steam generator IP3-016 shell-side heat removal system that relies on 1,235,365 1,790,384 1,294,n6 1,876,487 7,400,000 n/a Not Beneficial natural circulation and stored water sources.

+

017 - Increase secondary side pressure capacity IP3-017 such that an SGTR would not cause the rel ief 12,641,412 18,320,887 n/a n/a 100,000,000 n/ a Not Beneficial valves to lift.

IP-RPT-16-00078, Rev. 0 Page 63 of 86

IP-RPT-16-00078 Indian Point RAI CLl-16-07 SAMA Cost-Benefit Sensitivities Revision O Page 64 of 84 Table 12-Case 7 Sensitivity SAMA Results<1>

Tl-SGTR Tl-SGTR Estimated Estimated Phase II Description Baseline Benefit With Benefit Benefit With Cost (IP-Cost (NL-Conclusion SAMA Benefit Uncertainty Without RPT Uncertainty Uncertainty 00044)14-143) 018 - Route the discharge from the main steam IP3-018 safety valves through a structure where a water 2,839,856 4,115,733 9,612,734 13,931,498 12,000,000 35,691,159 Not Beneficial spray would condense the steam and remove most of the fission products.

IP3-019 019 - Install additional pressure or leak 2,007,840 2,909,913 n/a n/a 2,800,000 6,369,223 Not Beneficial monitoring instrumentation for ISLOCAs.

IP3-020 020 - Add redundant and diverse limit switches 974,215 1,411,905 n/a n/a 4,000,000 n/a Not Beneficial to each containment isolation valve.

IP3-021 021 - Increase leak testing of valves in ISLOCA 974,215 1,411,905 n/a n/a 10,604,000 n/a Not Beneficial paths.

IP3-022 022 - Ensure all ISLOCA releases are scrubbed.

2,007,840 2,909,913 n/a n/a 9,700,000 n/a Not Beneficial IP3-023 023 - Improve MSIV design.

0 0

n/a n/a 476,000 n/a Not Beneficial IP3-024 024 - Provide additional DC battery capacity.

35,259 51,100 n/a n/a 1,875,000 n/a Not Beneficial IP3-025 025 - Use fuel cells instead of lead-acid 35,259 51,100 n/a n/a 2,000,000 n/a Not Beneficial batteries.

IP3-026 026 - Increase/ improve DC bus load shedding.

35,259 51,100 n/a n/a 460,000 n/a Not Beneficial IP3-027 027 - Create AC power cross-tie capability with 70,647 102,387 n/a n/a 1,156,000 n/a Not Beneficial other unit.

IP3-028 028 - Create a backup source for diesel cooling 11,753 17,033 n/a n/a 1,700,000 n/a Not Beneficial (not from existing system).

IP-RPT-16-00078, Rev. 0 Page 64 of 86

IP-RPT-16-00078 Indian Point RAI CLl-16-07 SAMA Cost-Benefit Sensitivities Revision O Page 65 of 84 Table 12-Case 7 Sensitivity SAMA Results(1)

Tl-SGTR Tl-SGTR Estimated Estimated Phase II Description Baseline Benefit With Benefit Benefit With Cost (IP-Cost (NL-Conclusion SAMA Benefit Uncertainty Without Uncertainty RPT 14-143)

Uncertainty 00044)

IP3-029 029 - Use fire protection system as a backup 11,753 17,033 n/a n/a 497,000 n/a Not Beneficial source for diesel cooling.

IP3-030 030 - Provide a portable diesel-driven battery 201,481 292,001 284,656 412,546 938,000 n/a Not Beneficial charger.

031 - Convert under-voltage, AFW and reactor IP3-031 protective system actuation signals from 2-out-106,940 154,986 n/a n/a 1,254,000 n/ a Not Beneficial of-4 to 3-out-of-4 logic.

IP3-032 032 - Provide capability for diesel-driven, low 11,882 17,221 n/a n/a 632,000 n/a Not Beneficial pressure vessel makeup.

IP3-033 033 - Provide an additional high pressure 59,282 85,916 n/a n/a 5,000,000 n/ a Not Beneficial injection pump with independent diesel.

IP3-034 034 - Create automatic swap-over to 519,844 753,397 n/ a n/a 1,000,000 n/a Not Beneficial recirculation upon RWST depletion.

IP3-035 035 - Provide capability for alternate injection 11,882 17,221 n/a n/a 750,000 n/a Not Beneficial via diesel-driven fire pump.

036 - Throttle low pressure injection pumps IP3-036 earlier in medium or large-break LOCAs to 11,753 17,033 n/a n/a 82,000 n/a Not Beneficial maintain reactor water storage tank inventory.

IP3-037 037 - Replace two of three motor-driven SI 59,282 85,916 n/a n/a 2,000,000 n/a Not Beneficial pumps with diesel-powered pumps.

IP3-038 038 - Create/enhance a reactor coolant 237,516 344,225 n/a n/a 4,600,000 n/ a Not Beneficial depressurization system.

IP-RPT-16-00078, Rev. 0 Page 65 of 86

IP-RPT-16-00078 Indian Point RAI CLl-16-07 SAMA Cost-Benefit Sensitivities Revision 0 Page 66 of 84 Table 12 - Case 7 Sensitivity SAMA Results(1)

Tl-SGTR Tl-SGTR Estimated Estimated Phase II Description Baseline Benefit With Benefit Benefit With Cost (IP-Cost (NL-Conclusion SAMA Benefit Uncertainty Without Uncertainty RPT 14-143)

Uncertainty 00044)

IP3-039 039 - Install a digital feed water upgrade.

247,716 359,009 n/a n/a 900,000 n/a Not Beneficial IP3-040 040 - Provide automatic nitrogen backup to 166,222 240,902 237,516 344,225 950,000 n/a Not Beneficial steam generator atmospheric dump valves.

IP3-041 041 - Add a motor-driven feedwater pump.

247,716 359,009 n/a n/a 2,000,000 n/a Not Beneficial 042 - Provide hookup for portable generators to IP3-042 power the turbine-driven AFW pump after 35,259 51,100 n/a n/a 1,072,000 n/a Not Beneficial station batteries are depleted.

IP3-043 043 - Use fire water system as backup for steam 379,197 549,561 438,608 635,664 1,656,000 n/a Not Beneficial generator inventory.

044 - Replace current pilot operated relief valves IP3-044 with larger ones such that only one is required 1,128,166 1,635,024 n/a n/a 2,700,000 n/a Not Beneficial for successful feed and bleed.

IP3-045 045 - Add an independent boron injection system.

0 0

n/a n/a 300,000 n/a Not Beneficial 046 - Add a system of relief valves that prevent IP3-046 equipment damage from a pressure spike during 200,446 290,501 n/a n/a 615,000 n/a Not Beneficial an ATWS.

IP3-047 047 - Install motor generator set trip breakers in 35,388 51,287 n/a n/a 716,000 n/a Not Beneficial control room.

IP3-048 048 - Provide capability to remove power from 35,388 51,287 n/a n/a 90,000 n/a Not Beneficial the bus powering the control rods.

IP-RPT-16-00078, Rev. 0 Page 66 of 86

IP-RPT-16-00078 Indian Point RAI CLl-16-07 SAMA Cost-Benefit Sensitivities Revision 0 Page 67 of 84 Table 12 - Case 7 Sensitivity SAMA Results(1)

Tl-SGTR Tl-SGTR Estimated Estimated Phase II Description Baseline Benefit With Benefit Benefit With Cost (IP-Cost (NL-Conclusion SAMA Benefit Uncertainty Without Uncertainty RPT 14-143)

Uncertainty 00044)

IP3-049 049 - Provide digital large break LOCA 0

0 n/a n/a 2,036,000 n/a Not Beneficial protection.

IP3-050 050 - Install secondary side guard pipes up to 2,161,921 3,133,219 n/a n/a 9,671,000 n/a Not Beneficial the M51Vs.

IP3-051 051 - Operator action: Align main feedwater for 11,753 17,033 n/a n/a 55,000 n/a Not Beneficial secondary heat removal.

IP3-0S2 052 *Open dty water supply valve for 249,398 361,446 n/a n/a 50,000 138,378 Retained alternative AFW pump suction.

IP3-0S3 053 - Install an excess flow valve to reduce the 415,620 602,348 n/a n/a 228,000 344,599 Retained risk associated with hydrogen explosions.

IP3-054 054 - Provide DC power backup for the PORVs.

0 0

n/a n/a 376,000 n/a Not Beneficial 055

Provide hard-wired connection to a SI or IP3-0SS RHR pump from the Appendix R bus (MCC 3,657,273 5,300,396 n/a n/a 1,288,000 1,601,888 Retained 312A).

IP3-056 056 - Install pneumatic controls and indication 35,259 51,100 n/a n/a 982,000 n/a Not Beneficial for the turbine-driven AFW pump.

IP3-057 057 - Provide backup cooling water source for 47,141 68,320 n/a n/a 109,000 n/a Not Beneficial the CCW heat exchangers.

IP3-058 058 - Provide automatic DC power backup.

94,282 136,640 n/a n/a 1,868,000 n/ a Not Beneficial 059 - Provide hardware connections to allow the IP3-059 primary water system to cool the charging 0

0 n/a n/a 576,000 n/ a Not Beneficial pumps.

IP-RPT-16-00078, Rev. 0 Page 67 of 86

Indian Point RAI CLl-1 6-07 SAMA Cost-Benefit Sensitivities IP-RPT-16-00078 Revision 0 Page 68 of 84 Table 12-Case 7 Sensitivity SAMA Results(1)

Phase II Description Baseline SAMA Benefit IP3-060 060 - Provide independent source of cooling for 0

the recirculation pump motors.

IP3-061 061 - Upgrade the ASSS to allow timely 3,859,142 restoration of seal injection and cooling.

IP3-062 062 - Install flood alarm in the 480 VAC 3,859,142 switchgear room.

Not numbered - Use a gagging device to dose a IP3-GAG stuck open main steam safety valve following a n/a steam generator tube rupture.

(1)

Legend: green highlight= SAMAs retained in Case 0, baseline case.

lavender highlight = SAMAs evaluated for Tl-SGTR.

red text= SAMAs with NL-14-143 estimated costs.

IP-RPT-16-00078, Rev. 0 Tl-SGTR Tl-SGTR Benefit With Benefit Benefit With Uncertainty Without Uncertainty Uncertainty 0

n/a n/a 5,592,959 n/a n/a 5,592,959 n/a n/a 19,000,000 n/a n/a Page 68 of 86 Estimated Estimated Cost (IP-Cost (NL-Conclusion RPT 14-143) 00044) 710,000 n/a Not Beneficial 560,000 2,282,668 Retained 196,800 496,071 Retained 50,000 453,745 Retained

IP-RPT-16-00078 Indian Point RAI CLl-16-07 SAMA Cost-Benefit Sensitivities Revision 0 Page 69 of 84 Table 13 - Case 8 Sensitivity SAMA Results111 Phase Tl-SGTR Estimated Estimated II Description Baseline Benefit Cost (IP-Cost (NL-Conclusion Benefit Without RPT SAMA Uncertainty 00044)14-143)

IP2-001 001 - Create an independent RCP seal 407,477 407,477 1,137,000 n/a Not Beneficial injection system with a dedicated diesel.

IP2-002 002 - Create an independent RCP seal 342,216 n/a 1,000,000 n/a Not Beneficial injection system without a dedicated diesel.

IP2-003 003 - Install an additional CCW pump.

0 n/a 1,500,000 n/a Not Beneficial IP2-004 004 - Enhance procedural guidance for use of 40,543 n/ a 1,750,000 n/a Not Beneficial service water pumps.

005 - Improve ability to cool the RHR heat IP2-005 exchangers by allowing manual alignment of 105,892 n/a 565,000 n/a Not Beneficial the fire protection system.

IP2-006 006 - Add a diesel building high temperature 24,361 65,260 274,000 n/a Not Beneficial alarm.

IP2-007 007 - Install a filtered containment vent to 1,750,478 n/a 5,700,000 n/a Not Beneficial provide fission product scrubbing.

008 - Create a large concrete crucible with IP2-008 heat removal potential under the base mat 8,098,006 n/a 108,000,000 n/a Not Beneficial to contain molten core debris.

IP2--009 009 - Create a reactor cavity flooding system.

n/a 4,100,000 1,741,724 Retalned IP2-010 010 - Create a core melt source reduction system.

n/a 90,000,000 n/a Not Beneficial IP-RPT-16-00078, Rev. 0 Page 69 of 86

IP-RPT-16-00078 Indian Point RAI CLl-16-07 SAMA Cost-Benefit Sensitivities Revision 0 Page 70 of 84 Table 13 - Case 8 Sensitivity SAMA Results<1>

Phase Tl-SGTR Estimated Estimated II Description Baseline Benefit Cost (IP-Cost (NL-Conclusion Benefit Without RPT SAMA Uncertainty 00044)14-143)

IP2-011 011 - Provide a means to inert containment.

4,629,769 n/a 10,900,000 n/a Not Beneficial 012 - Use the fire protection system as a IP2-012 backup source for the containment spray 0

n/a 565,000 n/a Not Beneficial system.

IP2-013 013 - Install a passive containment spray 0

n/a 2,000,000 n/a Not Beneficial system.

014 - Increase the depth of the concrete IP2-014 base mat or use an alternative concrete 1,194,251 n/a 5,000,000 n/a Not Beneficial material to ensure melt-through does not occur.

015 - Construct a building connected to IP2-015 primary containment that is maintained at a 8,114,366 n/a 61,000,000 n/a Not Beneficial vacuum.

IP2-016 016 - Install a redundant containment spray system.

0 n/a 5,800,000 n/a Not Beneficial 017 - Erect a barrier that provides IP2-017 containment liner protection from ejected 2,993,808 n/a 5,500,000 n/a Not Beneficial core debris at high pressure.

018 - Install a highly reliable steam generator IP2-018 shell-side heat removal system that relies on 106,337 n/a 7,400,000 n/a Not Beneficial natural circulation and stored water sources.

019 - Increase secondary side pressure IP2-019 capacity such that a SGTR would not cause 10,011,635 n/a 100,000,000 n/a Not Beneficial the relief valves to lift.

IP-RPT-16-00078, Rev. 0 Page 70 of 86

IP-RPT-16-00078 Indian Point RAI CLl-16-07 SAMA Cost-Benefit Sensitivities Revision 0 Page 71 of 84 Table 13 - Case 8 Sensitivity SAMA Results!1l Phase Estimated Estimated II Description Baseline Cost (IP-Cost (NL-Conclusion Benefit RPT SAMA 00044)14-143) 020 - Route the discharge from the main steam safety valves through a structure IP2-020 where a water spray would condense the 981,577 9,700,000 n/a Not Beneficial steam and remove most of the fission products.

IP2-021 021 - Install additional pressure or leak 3,778,892 3,200,000 4,632,227 Not Beneficial monitoring instrumentation for ISLOCAs.

022 - Add redundant and diverse limit IP2-022 switches to each containment isolation 1,889,446 2,200,000 7,692,784 Not Beneficial valve.

IP2-023 023 - Increase leak testing of valves in 1,889,446 7,964,000 n/a Not Beneficial ISLOCA paths.

IP2-024 024 - Ensure all ISLOCA releases are 3,778,892 9,700,000 n/ a Not Beneficial scrubbed.

IP2-025 025 - Improve MSIV design.

171,776 476,000 n/a

Not ~neflclal IP2-026 026 - Provide additional DC battery capacity.

40,543 1,875,000 n/a Not Beneficial IP2-027 027 - Use fuel cells instead of lead-acid 40,543 2,000,000 n/a Not Beneficial IP2-029 029 - Increase/ improve DC bus load 460,000 n/ a Not ~neficial shedding.

IP2-030 030 - Create AC power cross-tie capability 56,813 1,156,000 n/a Not Beneficial with other unit.

IP-RPT-16-00078, Rev. 0 Page 71 of 86

IP-RPT-16-00078 Indian Point RAI CLl-16-07 SAMA Cost-Benefit Sensitivities Revision 0 Page 72 of 84 Table 13-Case 8 Sensitivity SAMA Results(1l Phase Tl-SGTR Estimated Estimated II Description Baseline Benefit Cost (IP-Cost (NL-Conclusion Benefit Without RPT SAMA Uncertainty 00044)14-143)

IP2-031 031 - Create a backup source for diesel 32,452 n/a 1,700,000 n/ a Not Beneficial cooling (not from existing system).

IP2-032 032 - Use fire protection system as a backup 32,452 n/ a 497,000 n/ a Not Beneficial source for diesel cooling.

033 - Convert under-voltage AFW and IP2-033 reactor protective system actuation signals 0

n/a 1,254,000 n/ a Not Beneficial from 2-out-of-4 to 3-out-of-4 logic.

IP2-034 034 - Provide capability for diesel-driven, low 0

n/ a 632,000 n/a Not Beneficial pressure vessel makeup.

IP2-035 035 - Provide an additional high pressure 73,529 n/a 5,000,000 n/ a Not Beneficial injection pump with independent diesel.

IP2-036 036 - Create automatic swap-over to 130,165 n/a 1,000,000 n/ a Not Beneficial recirculation cooling upon RWST depletion.

IP2-037 037 - Provide capability for alternate 0

n/a 750,000 n/ a Not Beneficial injection via diesel-driven fire pump.

038 - Throttle low pressure injection pumps IP2-038 earlier in medium or large-break LOCAs to 8,091 n/ a 82,000 n/a Not Beneficial maintain reactor water storage tank inventory.

IP2-039 039 - Replace two of three motor-driven SI 73,529 n/a 2,000,000 n/a Not Beneficial pumps with diesel-powered pumps.

IP-RPT-16-00078, Rev. 0 Page 72 of 86

IP-RPT-16-00078 Indian Point RAI CLl-16-07 SAMA Cost-Benefit Sensitivities Revision O Page 73 of 84 Table 13 - Case 8 Sensitivity SAMA Results(1)

Phase Tl-SGTR Estimated Estimated II Description Baseline Benefit Cost (IP-Cost (NL-Conclusion Benefit Without RPT SAMA Uncertainty 00044)14-143)

IP2-040 040 - Create/ enhance a reactor coolant 695,105 736,004 2,000,000 n/ a Not Beneficial depressurization system.

IP2-041 041 - Install a digital feed water upgrade.

170,975 n/a 900,000 n/ a Not Beneficial IP2-042 042 - Provide automatic nitrogen backup to 8,180 n/a 214,000 n/a Not Beneficial steam generator atmospheric dump valves.

IP2-043 043 - Add a motor-driven feed water pump.

170,975 n/a 2,000,000 n/a Not Beneficial IP2--044 044 - Use fire water system as backup for 2,767,700 n/a 1,656,000 3,073,130 Not Beneficial steam generator inventory.

045 - Replace current pilot operated relief IP2-045 valves with larger ones such that only one is 725,064 n/a 2,700,000 n/ a Not Beneficial required for successful feed and bleed.

046 - Modify emergency operating IP2-046 procedures for ability to align diesel power 0

n/a 82,000 n/a Not Beneficial to more air compressors.

IP2-047 047 - Add an independent boron injection 0

n/a 300,000 n/a Not Beneficial system.

048 - Add a system of relief valves that IP2-048 prevent equipment damage from a pressure 97,801 n/a 615,000 n/a Not Beneficial spike during an ATW5.

IP2-049 049 - Install motor generator set trip 24,361 n/a 716,000 n/a Not Beneficial breakers in control room.

IP-RPT-16-00078, Rev. 0 Page 73 of 86

IP-RPT-16-00078 Indian Point RAI CLl-16-07 SAMA Cost-Benefit Sensitivities Revision O Page 74 of 84 Table 13 - Case 8 Sensitivity SAMA Results!1l Phase Tl-SGTR Estimated Estimated II Description Baseline Benefit Cost (IP-Cost (NL-Conclusion Benefit Without RPT SAMA Uncertainty 00044)14-143)

IP2-050 050 - Provide capability to remove power 24,361 n/a 90,000 n/a Not Beneficial from the bus powering the control rods.

IP2-051 051-Provide digital large break LOCA 0

n/a 2,036,000 n/ a Not Beneficial protection.

IP2-052 052 - Install secondary side guard pipes up to 515,239 727,914 1,100,000 n/a Not Beneficial the MSIVs.

IP2-053 053 - Keep both pressurizer PORV block 716,974 n/a 800,000 1,471,234 Not Beneficial valves open.

IP2--0S4 054-Install flood alarm in the 480V nta 200.000 458,843 Retained

$wltChgear< room.

055 - Perform a hardware modification to IP2-055 al low high-head recirculation from either 0

n/a 1,330,000 n/a Not Beneficial RHR heat exchanger.

056 - Keep RHR heat exchanger discharge IP2-056 motor operated valves (MOVs) normally 40,543 n/a 82,000 1,704,938 Not Beneficial open.

IP2-057 057 - Provide DC power backup for the 89,800 n/a 376,000 n/a Not Beneficial PO RVs.

058 - Provide procedural guidance to allow IP2-058 high-head recirculation from either RHR heat 0

n/a 82,000 n/a Not Beneficial exchanger.

059 - Re-install the low pressure suction trip IP2-059 on the AFW pumps and enhance procedures 16,271 n/a 318,000 n/a Not Beneficial to respond to loss of the normal suction path.

IP-RPT-16-00078, Rev. 0 Page 74 of 86

IP-RPT-16-00078 Indian Point RAI CLl-16-07 SAMA Cost-Benefit Sensitivities Revision 0 Page 75 of 84 Table 13 - Case 8 Sensitivity SAMA Results(1l Phase Estimated Estimated II Description Baseline Cost (IP-Cost (NL-Conclusion Benefit RPT SAMA 00044)14-143) o6o -Provide added protection against flood Retained IP2-()6()

propagation from stalrw~l 4 into the 480V switchgear room.

061 - Provide added protection against flood IP2-061 propagation from the deluge room into the 192,000 94'3,792 Retained 480V switchgear room.

IP2-062 062 - Provide a hard-wired connection to an 1,soo,000 1,6q2,692 Not Beneficial Sl pump from,ASSS powe~ supply.

063 - Provide a water-tight door for IP2-063 additional protection of the RHR pumps 32,452 324,000 n/ a Not Beneficial against flooding.

IP2-064 064 - Provide backup cooling water source 32,452 710,000 n/a Not Beneficial for the CON heat exchangers.

IP2-065 065 - llpgrade the ASSS to allow timely 6,957,808 560,000 1,859,587 Retained restoration of seal injfiction and cooling.

066 - Harden the EDG building and fuel oil IP2-066 transfer pumps against tornados and high 2,824,858 33,500,000 n/ a Not Beneficial winds.

067 - Provide hardware connections to allow IP2-067 the primary water system to cool the 8,091 576,000 n/a Not Beneficial charging pumps.

IP2-068 068 - Provide independent source of cooling 8,091 710,000 n/a Not Beneficial for the recirculation pump motors.

IP-RPT-16-00078, Rev. 0 Page 75 of 86

Indian Point RAI CLl-16-07 SAMA Cost-Benefit Sensitivities Table 13 - Case 8 Sensitivity SAMA Results(1)

Phase II SAMA IP2-GAG IP3-001 IP3-002 IP3-003 IP3-004 IP3-005 IP3-006 fP3'-007 IP3-008 Description Not,{~rft~J~ lJSe a gaping devi~ to close a stµct ol)eri main steam safefy valve followitifa ~eim 'generator tube ruptufe.

(See Roti~d '2 IW 6 in Reference 4.)

001 - Create an independent RCP seal injection system with a dedicated diesel.

002 - Create an independent RCP seal injection system without a dedicated diesel.

003 - Install an additional CCW pump.

004 - Improved ability to cool the RHR heat exchangers by allowing manual alignment of the fire protection system.

005 - Install a filtered containment vent to provide fission product scrubbing.

006 - Create a large concrete crucible with heat removal potential under the base mat to contain molten core debris.

system.

IP-RPT-16-00078, Rev. 0 Baseline Benefit n/a 296,021 201,222 0

130,575 1,568,456 6,357,000 Page 76 of 86 IP-RPT-16-00078 Revision 0 Page 76 of 84 Estimated Cost (IP-RPT 00044) 50,000 1,137,000 1,000,000 1,500,000 565,000 5,700,000 108,000,000 4,100,000 90,000,000 Estimated Cost (NL-14-143) 453,745 "

Ni n/a n/a n/a n/a n/a n/a 1,874,933 n/a Conclusion Retained Not Beneficial Not Beneficial Not Beneficial Not Beneficial Not Beneficial Not Beneficial Retained Not Beneficial

IP-RPT-16-00078 Indian Point RAI CLl-16-07 SAMA Cost-Benefit Sensitivities Revision 0 Page 77 of 84 Table 13 - Case 8 Sensitivity SAMA Results(1)

Phase Estimated Estimated II Description Baseline Cost (IP-Cost (NL-Conclusion Benefit RPT SAMA 00044)14-143)

IP3-009 009 - Provide means to inert containment.

3,422,086 10,900,000 n/ a Not Beneficial 010 - Use the fire protection system as a IP3-010 backup source for the containment spray 0

565,000 n/a Not Beneficial system.

IP3-011 011 - Install a passive containment spray 0

2,000,000 n/a Not Beneficial system.

012 - Increase the depth of the concrete IP3-012 base mat or use an alternative concrete 903,050 material to ensure melt-through does not 5,000,000 n/a Not Beneficial occur.

013 - Construct a building connected to IP3-013 primary containment that is maintained at a 6,428,293 61,000,000 n/a Not Beneficial vacuum.

IP3-014 014 - Install a redundant containment spray system.

0 5,800,000 n/a Not Beneficial 015 - Erect a barrier that provides IP3-015 containment liner protection from ejected 1,913,041 5,500,000 n/ a Not Beneficial core debris at high pressure.

016 - Install a highly reliable steam generator IP3-016 shell-side heat removal system that relies on 1,675,008 7,400,000 n/ a Not Beneficial natural circulation and stored water sources.

017 - Increase secondary side pressure IP3-017 capacity such that an SGTR would not cause 23,323,548 100,000,000 n/ a Not Beneficial the relief valves to lift.

IP-RPT-16-00078, Rev. 0 Page 77 of 86

IP-RPT-1 6-00078 Indian Point RAI CLl-16-07 SAMA Cost-Benefit Sensitivities Revision 0 Page 78 of 84 Table 13 - Case 8 Sensitivity SAMA Results!1l Phase Tl-SGTR Estimated Estimated II Description Baseline Benefit Cost (IP-Cost (NL-Conclusion Benefit Without RPT SAMA Uncertainty 00044)14-143) 018 - Route the discharge from the main steam safety valves through a structure IP3-018 where a water spray would condense the 5,145,011 18,037,244 12,000,000 35,691,159 Not Beneficial steam and remove most of the fission products.

IP3-019 019 - Install additional pressure or leak 3,790,177 n/a 2,800,000 6,369,223 Not Beneficial monitoring instrumentation for ISLOCAs.

020 - Add redundant and diverse limit IP3-020 switches to each containment isolation 1,924,794 n/a 4,000,000 n/a Not Beneficial valve.

IP3-021 021 - Increase leak testing of valves in 1,924,794 n/a 10,604,000 n/a Not Beneficial ISLOCA paths.

IP3-022 022 - Ensure all ISLOCA releases are 3,790,177 n/a 9,700,000 n/a Not Beneficial scrubbed.

IP3-023 023 - Improve MSIV design.

0 n/a 476,000 n/a Not Beneficial IP3-024 024 - Provide additional DC battery capacity.

47,141 n/a 1,875,000 n/a Not Beneficial IP3-025 025 - Use fuel cells instead of lead-acid 47,141 n/a 2,000,000 n/a Not Beneficial batteries.

IP3-026 026 - Increase/ improve DC bus load 47,141 n/a 460,000 n/a Not Beneficial shedding.

IP3-027 027 - Create AC power cross-tie capability 70,647 n/a 1,156,000 n/a Not Beneficial with other unit.

IP3-028 028 - Create a backup source for diesel 11,753 n/a 1,700,000 n/a Not Beneficial cooling (not from existing system).

IP-RPT-16-00078, Rev. 0 Page 78 of 86

IP-RPT-16-00078 Indian Point RAI CLl-16-07 SAMA Cost-Benefit Sensitivities Revision 0 Page 79 of 84 Table 13 - Case 8 Sensitivity SAMA Results(1l Phase Tl-SGTR Estimated Estimated II Description Baseline Benefit Cost (IP-Cost (NL-Conclusion Benefit Without RPT SAMA Uncertainty 00044)14-143)

IP3-029 029 - Use fire protection system as a backup 11,753 n/a 497,000 n/ a Not Beneficial source for diesel cooling.

IP3-030 030 - Provide a portable diesel-driven 272,774 403,479 938,000 n/ a Not Beneficial battery charger.

031 - Convert under-voltage, AFW and IP3-031 reactor protective system actuation signals 118,822 n/a 1,254,000 n/a Not Beneficial from 2-out-of-4 to 3-out-of-4 logic.

IP3-032 032 - Provide capability for diesel-driven, low 23,764 n/a 632,000 n/a Not Beneficial pressure vessel makeup.

IP3-033 033 - Provide an additional high pressure 118,693 n/a 5,000,000 n/a Not Beneficial injection pump with independent diesel.

IP3-034 034 - Create automatic swap-over to 591,137 n/a 1,000,000 n/ a Not Beneficial recirculation upon RWST depletion.

IP3-035 035 - Provide capability for alternate 23,764 n/a 750,000 n/a Not Beneficial injection via diesel-driven fire pump.

036 - Throttle low pressure injection pumps IP3-036 earlier in medium or large-break LOCAs to 11,753 n/a 82,000 n/a Not Beneficial maintain reactor water storage tank inventory.

IP3-037 037 - Replace two of three motor-driven SI 118,693 n/a 2,000,000 n/a Not Beneficial pumps with diesel-powered pumps.

IP3-038 038 - Create/enhance a reactor coolant 308,809 n/a 4,600,000 n/ a Not Beneficial depressurization system.

IP-RPT-16-00078, Rev. 0 Page 79 of 86

IP-RPT-16-00078 Indian Point RAI CLl-16-07 SAMA Cost-Benefit Sensitivities Revision 0 Page 80 of 84 Table 13 - Case 8 Sensitivity SAMA Results(1l Phase Tl-SGTR Estimated Estimated II Description Baseline Benefit Cost (IP-Cost (NL-Conclusion Benefit Without RPT SAMA Uncertainty 00044)14-143)

IP3-039 039 - Install a digital feed water upgrade.

319,010 n/a 900,000 n/a Not Beneficial IP3-040 040 - Provide automatic nitrogen backup to 296,927 296,927 950,000 n/ a Not Beneficial steam generator atmospheric dump valves.

IP3-041 041 - Add a motor-driven feedwater pump.

319,010 n/a 2,000,000 n/a Not Beneficial 042 - Provide hookup for portable IP3-042 generators to power the turbine-driven AFW 47,141 n/a 1,072,000 n/a Not Beneficial pump after station batteries are depleted.

IP3-043 043 - Use fire water system as backup for 509,902 569,313 1,656,000 n/ a Not Beneficial steam generator inventory.

044 - Replace current pilot operated relief IP3-044 valves with larger ones such that only one is 1,508,398 n/a 2,700,000 n/a Not Beneficial required for successful feed and bleed.

IP3-045 045 - Add an independent boron injection system.

0 n/a 300,000 n/a Not Beneficial 046 - Add a system of relief valves that IP3-046 prevent equipment damage from a pressure 271,739 n/a 615,000 n/a Not Beneficial spike during an ATWS.

IP3-047 04 7 - Install motor generator set trip 35,388 n/ a 716,000 n/a Not Beneficial breakers in control room.

IP3-048 048 - Provide capability to remove power 35,388 n/a 90,000 n/a Not Beneficial from the bus powering the control rods.

IP-RPT-16-00078, Rev. 0 Page 80 of 86

IP-RPT-16-00078 Indian Point RAI CLl-16-07 SAMA Cost-Benefit Sensitivities Revision O Page 81 of 84 Table 13 - Case 8 Sensitivity SAMA Results<1>

Phase Tl-SGTR Estimated Estimated II Description Baseline Benefit Cost (IP-Cost (NL-Conclusion Benefit Without RPT SAMA Uncertainty 00044)14-143)

IP3-049 049 - Provide digital large break LOCA 0

n/a 2,036,000 n/a Not Beneficial protection.

IP3-050 050 - Install secondary side guard pipes up to 2,922,385 n/a 9,671,000 n/a Not Beneficial the MSIVs.

IP3-051 051 - Operator action: Align main feedwater 23,635 n/a 55,000 n/a Not Beneficial for secondary heat removal.

IP3-052 OS2 - Open city water supply valve for n/a 50,000 Retafned alternative AFW pump suction.

};'.' *"1-

.;;,-;;:l{;ll

.,'fu' tP3-053 053 *Install an excess flow valve to reduce n/a 248,000 344,599 Retained the risk associated with hydrogen explosions.

IP3-054 054 - Provide DC power backup for the 0

n/a 376,000 n/a Not Beneficial PO RVs.

OSS - Pt'ovlde hard-wired connection to a SI IP3-055 qr RHR Pump from the Appendix R bus (MCC n/a 1,288,000 1,601,888; Retained 312A). 0 IP3-056 056 - Install pneumatic controls and 47,141 n/a 982,000 n/a Not Beneficial indication for the turbine-driven AFW pump.

IP3-057 057 - Provide backup cooling water source 59,023 n/a 109,000 n/a Not Beneficial for the CCW heat exchangers.

IP3-058 058 - Provide automatic DC power backup.

94,282 n/a 1,868,000 n/a Not Beneficial 059 - Provide hardware connections to allow IP3-059 the primary water system to cool the 0

n/a 576,000 n/a Not Beneficial charging pumps.

IP-RPT-16-00078, Rev. 0 Page 81 of 86

Indian Point RAI CLl-16-07 SAMA Cost-Benefit Sensitivities Table 13 - Case 8 Sensitivity SAMA Results(1J Phase II Description Baseline Benefit SAMA IP3-060 060 - Provide independent source of cooling 0

for the recirculation pump motors.

IP3-061 061 - Upgrade the ASSS to allow timely 5,415,716 restoration of seal injection and cooling.

IP3-062 062 - Install flood alarm in the 480 VAC 5,415,716 switchgear room.

Not numbered - Use a gagging device to IP3-GAG close a stuck open main steam safety valve n/a following a steam generator tube rupture.

(See Round 2 RAJ 6 In Reference 2.)

(1) Legend: green highlight = SAMAs retained in Case 0, baseline case.

lavender highlight = SAMAs evaluated for Tl-SGTR.

red text= SAMAs with NL-1 4-1 43 estimated costs.

IP-RPT-16-00078, Rev. 0 Tl-SGTR Benefit Without Uncertainty n/a n/a n/a n/a Page 82 of 86 IP-RPT-16-00078 Revision O Page 82 of 84 Estimated Estimated Cost (IP-Cost (NL-RPT 00044)14-143) 710,000 n/a 560,000 2,282,668 196,800 496,071 50,000 453,745 Conclusion Not Beneficial Retained Retained Retained

Indian Point RAI CLl-16-07 SAMA Cost-Benefit Sensitivities IP-RPT-16-00078 Revision O Page 83 of 84 - List of Electronic Files Input spreadsheets from IP-RPT-09-00044 (Reference 3):

File Name Unit Date Time Description sumi2NS-noE-R-NmetEC.xls IP2 11/19/2009 10:17AM PDR and OECR for SAMA analysis cases - baseline Cost-20-7-1 P2-NS-noE-R-NmetEC.xls IP2 11/19/2009 10:14AM Benefit calculations for SAMA analysis cases - baseline IP2 Radionudide Release Results-Base-IP2 04/30/2008 11 :03AM Source term for IP2 Tl-SGTR RAl#5.xls sensitivity sumi2NS-noE-R-NmetEC-RAl5.xls IP2 11/18/2009 09:44AM PDR and OECR for SAMA analysis cases - Tl-SGTR sensitivity Cost-20-7-IP2-NS-noE-R-NmetEC-RAl5.xls Benefit calculations for SAMA IP2 11/18/2009 1010AM analysis cases - Tl-SGTR sensitivity sumi3NS-noE-NmetEC-R-level 130a.xls IP3 11/19/2009 10:29AM PDR and OECR for SAMA analysis cases - baseline ER-Cost-20-7-IP3-NS-noE-NmetEC-R-nm8-IP3 11/19/2009 10:33AM Benefit calculations for SAMA level1-30a.xls analysis cases - baseline IP3 Radionudide Release Results-Base-IP3 04/30/2008 11:53AM Source term for IP3 Tl-SGTR RAl#5.xls sensitivity sumi3NS-noE-NmetEC-R-level 130a-IP3 11/18/2009 10:10AM PDR and OECR for SAMA analysis RAl5.xls cases - Tl-SGTR sensitivity ER-Cost-20-7 -I P3-NS-noE-NmetEC-R-nm8-Benefit calculations for SAMA level 1-30a-RAl5.xls IP3 11/18/2009 10:08AM analysis cases - Tl-SGTR sensitivity Input spreadsheet from IP-RPT-07-00007 (Reference 6):

File Name Unit Date Time Description IP2 SAMA Radionudide Release Results-IP2 01/29/2007 12:55PM Source Term for Analysis Case 16 Level1-20.xls

- Phase II SAMA IP2-020.

Input spreadsheet from IP-RPT-07-00008 (Reference 7):

File Name Unit Date Time Description IP3 SAMA Radionuclide Release Results-IP3 01/23/2007 06:36AM Source Term for Analysis Case 14 Level2-18.xls

- Phase II SAMA IP3-018.

Input spreadsheet from IP-RPT-16-00077 (Reference 4):

File Name Unit Date Time Description 2016 IPEC MACCS2 Sens - RevD.xlsx IP2 11/24/16 1:08PM MACCS2 results for RAI CLl-16-07 and sensitivity cases IP3 IP-RPT-16-00078, Rev. 0 Page 83 of 86

Indian Point RAI CLl-16-07 SAMA Cost-Benefit Sensitivities I P-RPT-16-00078 Revision O Page 84 of 84 - List of Electronic Files (cont.)

Output spreadsheets for IP-RPT-16-00078 (this report):

File Name Unit Date Time Description Case 0 IPEC SAMA Sensitivities.xlsx IP2 Case 0 spreadsheet to confirm and 11/26/16 3:41PM that the benefit results of IP-RPT-IP3 09-00044 can be reproduced.

Case 4 IPEC SAMA Sensitivities.xlsx IP2 Case 4 spreadsheet to evaluate and 12/3/16 9:18AM escalated VALWNF and VNFRM IP3 and support response to RAI #1.

Case 5 IPEC SAMA Sensitivities.xlsx IP2 Case 5 spreadsheet to evaluate and 12/23/16 11 :25AM increased TIMDEC and CDNFRM IP3 and support response to RAI #2.a.

Case 7 IPEC SAMA Sensitivities.xlsx IP2 Case 7 spreadsheet to evaluate and 12/3/16 10:32AM escalated VALWNF and VNFRM IP3 and revised VDEPOS.

Case 8 IPEC SAMA Sensitivities.xlsx IP2 Case 8 spreadsheet to evaluate and 12/23/16 11 :33AM increased TIMDEC and CDNFRM IP3 with revised VDEPOS.

IP-RPT-16-00078, Rev. 0 Page 84 of 86

Engineering Report

~Entergy Technical Review Comments and Resolutions Form Engineering I

IP-RPT-16-00078 Rev. 0 I Indian Point RAI CLI-I 6-07 SAMA Cost-Benefit Sensitivities Report Number Quality Related: LJ Yes 161 No Special Notes or Instructions:

Comment Section/ Page No.

Review Comment Response/Resolution Preparer's Number Accept Initials 1

2.a, page 4 It states $100k is the maximum CDNFRM value.

$100k is the maximum the MACCS2 code AJS However, the range for Indian Point is $71,255 to permits. The range in the order is merely 12/12/16

$112,856 (CLl-12-07 page 37). How is it the maximum if it a range of values proposed by the is middle of the site range? Is it the maximum the MACCS intervener in the license renewal legal code permits? I believe this is correct treatment and it proceeding for Indian Point.

may be more a comment on the CLl-12-07 report or RAI itself.

2

3. page 4 Consider defining Population Dose Risk (PDR) and an Yes, I did this just before Table 2, which is AJS Offsite Economic Cost Risk (OECR) acronyms. They are the first place I used the acronyms that 12/12/16 spelled out in the RAI text and used later but never wasn't in the text directly from the NRC formally defined.

RAI.

3 Table 1 Does table need units($)? Most other tables list units (p-Units added.

AJS rem, p-rem/yr, $/yr) but this table does not denote that it is 12/12/16 dollars ($) for the listed values.4 4

Page 6 - below It states the OECR increase of 9-10%. This information is Reworded all similar sentences.

AJS table 1 in Reference 4 tables A-1A/1 B but it is not clear how to get 12/12/16 these numbers from the content of this report as stated "as shown in Table 2 and Table 3" 5

Table 6 It states and shows the SAMAs that appear potentially In Section 6 of the report, I inserted the AJS cost beneficial. Is it worth showing the details on the ones full results (all SAMAs) for each of the 12/12/16 that are not?

sensitivity cases. In Table 6 and Table 11, I left just the new potentially cost-beneficial SAMAs since I believe that is all we want to tell the NRC. I reworded the intros to Tables 6 and 11 accordingly.

EN-DC-147 Rev 6 IP-RPT-16-00078, Rev. 0 Page 85 of 86

Engineering Report

~Entergy Technical Review Comments and Resolutions Form Engineering I

I P-RPT-16-00078 Rev. 0 I Indian Point RAI CLI-1 6-07 SAMA Cost-Benefit Sensitivities Report Number Quality Related: LJ Yes

~ No Special Notes or Instructions:

Comment Section/ Page No.

Review Comment Response/Resolution Preparer's Number Accept Initials 6

Page 15 and table Basically same as last comment. The wording states that See response to comment 5.

AJS 11 As shown in Table 11, when the TIMDEC and CDNFRM 12/12/16 values are increased to the maximum MACCS2 allowed values as stipulated in the RAJ, with the alternative revised baseline, none of the SAMA benefits are higher than the existing implementation cost estimate.

The table only shows 4 SAMAs - only the ones relevant to the next paragraph. Is it worth showing the details of the ones that are not cost beneficial? If not consider rewording the text.

Verified/Reviewed By:

I Andrew Spotts I Date I 12107116 Resolved By:

I Lori Ann Potts Site/Department:

I Entergy/PSA I Ph. 281.788.0583 I Date: 12/11/2016 I

EN-DC-147 Rev 6 IP-RPT-16-00078, Rev. 0 Page 86 of 86

ML17040A435

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