ML20217D327

Update of 1995 Decommissioning Evaluation for Rancho Seco Nuclear Generating Station

ML20217D327
Person / Time
Site:	Rancho Seco
Issue date:	07/30/1997
From:	TLG ENGINEERING, INC.
To:
Shared Package
ML20217D315	List: ML20217D310 ML20217D327
References
S11-1249-001, S11-1249-1, NUDOCS 9710030119
Download: ML20217D327 (26)

Text

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Update of the 1995 Decommissioning Evaluation for the Rancho Seco Nuclear Generating Station Prepared for Sacramento Municipal Utility District i

Prepared by TLG Services,Inc.

July,1997 l.

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hR:ncho S:ca Nucle:r Gen: rating Stati:n S11 12 0-001 1997 Cost Update Page 2 of 25 1997 UPDATE OF THE DECOMMISSIONING COST for the RANCHO SECO NUCLEAR GENERATING STATION DACKGROUND The Rancho Seco Nuclear Generating Station (RSNGS) is lo.ated approximately 25 miles southeast of Sacramento, California. The station is comprised of a single nuclear generating unit with supporting facilities. Sacramento Municipal Utility District (the District) owns, operated and currently maintains the station. The unit ceased operation in 1989 and is currently in Custodial SAFSTOR.

TLG Services, Inc. (TLG) last prepared a decommissioning cost evaluation for the District in August of 1995.

The study provided the District with the financial information, as well as the technical considerations, needed to assess the viability of accelerating the decommissioning process. The accelerated scenario was developed as an alternative to the SAFSTOR program delineated within the 1991 Decommissioning Plan (DP) for RSNGS. As part of the 1995 effort, the costs associated with implementation of the original SAFSTOR program were updated to reflect then current dollars and present day tecimology as well as incorporating the lessons learned over the four year period between the 1991 estimate. This report updates the 1995 SAFSTOR estimate, which remains the basis for funding the decommissioning of the nuclear unit.

The 1995 study evaluated a SAFSTOR alternative which included a safe storage period, deferred decontamination and dismantling, spent fuel storage and non-radiological site restoration. The 1995 study reflected the then current schedule for

1. he spent fuel to dry storage (by November 1997), and an updated work transfer t t

sequence based upon the more detailed inventory. It also included the actual costa expended through 1995 and budgeted costs to keep the plant in custodial SAFSTOR

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4 hRcnchs S:cs Nuclear Generating SI:ll:n 511120 001 1997 Cost Update Page 3 of 25 2

until the transfer of the spent fuel to dry storage could be completed. By comparison, the 1997 update includes actual costa expended through 1996 and projected budgets through 1999, and reflecta a revision to the 1995 spent fuel schedule.

As part of the projected budget through 1999 the District has approved an incremental decommissioining program aimed at removing the secondary side portion of the plant.

The budgeted costs for this program are delineated in the estimate. The Fuel Storage Building is assumed to remain active until 1999, when the last assembly 9 ould be moved into dry storage. The date for initiating deferred decommissioning remains the same (October 2008).

Once the fuel has been transferred to dry storage, the facility is " hardened" to minimize the on site commitment for the District. The facility will remain in this state of dormancy for approximately 9 years, after which the District will initiate deferred decontamination, i.e. removal of unacceptable levels of radioactivity. Upon conclusion of the decontaminat3on process the District, with NRC concurrence, can terminate the operating license and proceed with restoration of the site.

The cost projected for the SAFSTOR alternative in 1995 was estimated at approximatley $441 million (Part 50 license termination only). This represented a substantial increase from earlier estimates. A large percentage of the increase in cost was due to a doubling in the lowlevel radioactive waste volume projected to be generated from the decomndssioning process in the 1995 study. The increase in waste volume was due to the addition of systems and components not previously targeted for remediation/ disposition in earlier estimates. The inventory had been identified as a result of additional site characterization that has been performed in support of the Contaminated Asset Recovery Program. This along with a changing (more restrictive) regulatory climate led to an increase in the amount of material to be considered for controlled disposal. The inclusion of the additional inventory as low level radioactive waste, within the decommissioning model, increased the resulting disposal volume

hR:ncho Seca Nuch:r Generating SI:llon S1112 6 001 1997 Cost Update Page 4 of 25 by approximately 74,387 cubic feet and represents the single largest contributor to the increased estimated cost of decommissioning over earlier estimates.

This study is submitted as an update to the 1995 SAFS'IVR estimate of $440.8 million.

The assumptions and methodology employed in developing the 1995 estimate are documented in the " Decommissioning Evaluation ' for the Rancho Seco Nuclear Generating Station," published in August,1995. Tt a camparative cost (in 1997 dollars) is estimated at approximately $452.2 million. It should be noted that these costa reflect only those expenses necessary to terminate the Part 50 license. The awociated costa for site restoration and spent fuel storage are identified separately in Table 3, which is located at the end of this document. This method of reporting costa is consistent with that provided in 1995. A comparison, summarized in Table 1, identifies the differences in cost by activity and cost category. Major differences in the assumptions relied upon to update the costa are described in the following text.

INTRODUCTION -

In accordance with the District's need to maintain a current estimate of its decommissioning funding requirements TLG, under the direction of the District, has revised its 1995 decommissioning estimate for the SAFSTOR alternative. The timing of the update allowed TLG to incorporate current economic conditions within the estimate as well as an incremental decommissioning program. As such, the new estimate reDects, in many instances, escalation over a two year period.

- The current estimate, summarized in Table 1, for decommissioning RSNGS is approximately $452.2 million, in 1997 dollars. Based on a comparison of the cost reported in 1995 study, the current estimate representa an increase of 2.57%.

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,o hR:ncho Seco Nuclear Generating St: tion S1112 0 001 1997 Cont Update Page 5 of 25 METIIODOLOGY and APPROACH TLG relied upon the same methodology for updating the decommissioning costs to a base year of 1997 as it used in generating the original 1995 estimate. The following approach was used in preparing the 1997 estimate.

1.

The identical cost estimating software (version) was relied upon in developing the 1997 decommissioning cost estimate (as was used in developing the 1995 estimate). Revisions to the data files were limited to modifications compatible with the capabilities of the software.

2.

The decom=I=aioning organization, originally developed by the District for the 1995 study, was reused as a basis for updating program management costa.

Personnel salaries were updated from information provided by the District. The overhead costa were also revised and reflect the current level of both direct and indirect corporate expenditures.

3.

The schedule developed for the 1995 estimate included a SAFSTOR dormancy period until April 2007 followed by 18 months of preparation and 39.45 months of deferred decontamination and dismantling. These milestone dates and

)

durations are retained in the 1997 cost estimate. Completion of the transfer of the spent fuel to the onsite Independent Spent Fuel Storage Facility (ISFSI) was revised from November 1997 to November 1999, reflecting delays incurred in system component delivery.

4.

The spent fuel assemblies are assumed to be transferred from the ISFSI to a federal repository, as per the existing contract between the District and the Department of Energy, by the year 2027. This assumption remains consistent with the objective identified in the 1995 study. For purposes of this update,

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hR:ncho Seca Nucle:r Gen: rating Stati:n S11-12 0 001 1997 Cost Update Page 6 of 25 caretaking costs for interim spent fuel storage are considered a decommissioning expense until the termination of the Part 50 license. Caretaking and maintenance of the spent fuel subsequent to the termination of the Part 50 license (in an on site ISFSI), are reported in Table 3 as fuel costs."

5.

Updated wages and benefits for craft labor were provided by the District for use within this estimate.

6.

Equipment and material costs, used to develop unit costs for decontamination and removal activities, were updated using the 55th Edition, (1997) R.S. Means Building Construction Cost Data.

7.

Transportation costs were revised to reflect the latest published tariffs from Tri-State Motor Transport Company.

8.

A burial rate of $405 per cubic foot was used as a basis in estimating disposal costs for the lowlevel radioactive waste generated in the decommissioning of RSNGS. = The charge is identical to that used in the 1995 cost estimate. Waste classified as Greater than Class C was assumed to be disposed of along with the spent fuel, at an equivalent cost. This is consistent with the handling of this materialin the 1995 estimate.

9.

Costs were changed to reflect the current incremental decommissioning program as determined by the District.

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hR:ncho Seca Nucts:r Ge:: crating St: tion S11 12 3-001 1997 Cost Update Page 7 of 25 SPENT FUEL DISPOSITION The 1995 cost study addressed the post-operation activity of spent fuel storage as a potential constraint on the decommissioning process. Spent fuel assemblies were assumed to remain in the spent fuel pool until the end of 1997 during which time the assemblies wotid be transferred to an alternative storage location on site. In the 1997 estimate this milestone date is modified to November,1999. This modi 6 cation reflects

.the current schedule for completing this activity. The current costs and proposed budgets for the ISFSI program are also incorporated into this update.

It is still assumed that the transfer of spent fuel assemblies to an off site repository can be completed by 2027. The cost of spent fuel storage until 2027 is reported in Table 3.

The cost to monitor the fuel until that date have been updated to 1997 dollars, including cost increases in maintaining a Part 12 license with the NRC.

LOW TRVET RADIOACTIVE WASTE DISPOSAL The base disposal cost assumed for waste destined for the future Ward Valley facility was not changed from the value used in the 1995 analysis ($405 per cubic foot). While current projections for disposal within the Southwest Compact have exceeded $500 per cubic foot, the cost is expected to decrease over the planned operating life of the facility.

There is also the possibility that the California facility may not open. If so, the $405 value is more comparable to that which wmdd be incurred to send the waste to an available facility such as Barnwell.

Waste disposal projections for the regional facility being sited in California, as well as other states, are being driven by rising development costs, environmental and licensing issues, administrative expenses as well as the rate of return on investment, operating and perpetuity expenses. The ultimate cost of disposal will be passed through to the

i R R:ncho S:co Nucl::r Generating St:tlan S11 12 a 001 1997 Cost Update Page 8 of 25 generators, placing a significant fraction of the cost to remediate a waste generating site beyond the control of the licensee.

Waste generated from the incremental decommissioning is planned to be buried for $70 per cubic foot based on proposed rates received by the District from disposal facilities and decontamil.ation processors.

INCREABNTAL DECOMMISSIONING PROGRAM

'I. e District has approved and incremental decommissioning program for the years 199

• to 1999 aimed at removing a large portion of the secondary side of the plant that l', considered contaminated. This program is to be performed on a trial basis, aimed at minimizing costs associated with the Custodial SAFSTOR schedule increases due to the slippages in putting the fuelin dry storage. The costs budgeted to complete this program are delineated in the cost table 3.

1997 COST PROJECTION AND COMPARATIVE ANALYSIS The cost to decommission RSNGS (including safe storage, decontamination and dismantling), is estimated to be $452.2 million, in 1997 dollars. This compares to a 1

i 1995 estimate of $440.8 million,in 1995 dollars. Comparative costs are summarized in Table 1. Annual expenditures are provided in Table 2 for the current estimate, with the l

I detailed cost report provided as Table 3.

l The 2.57% increase in the total cost can be attributed to the escalation of costs in two areas, program management (i.e., utility and contractor staffing costs), and labor costs.

i As seen in Table 1, a comparison of the individual cost elements between the two estimates identifies only marginal increases in decontamination and removal.

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I R R:ncho S:co Nucl::r Gener:llng St:ti:n S11 1249-001

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1997 Cost Update Page 9 of 25 Packaging costa actually decreased between estimates due to changing in container pricing.

Transportation costs with the inclusion of the latest rates and tariffs. No change was made to either the disposal site destination or the shipping methods assumed in the 1995 estimate.

Staffing costa increased over the two year period between estimates as a result of increases in personnel salaries and corporate overhead. The organizations developed for the 1995 estimate were not inodified in the 1997 update. However, the District provided updated salaries and overhead expenses which were, in most cases, higher than those previoualy itsed. The increase in the cost for salaried positions reDects actual costs, and the site speciSc organization at RSNGS.

Total butial costa decreased due to the lower burial costa taken advantage by the incremental decommissioning program. The incremental decommissioning program is aimed at removing the approximately 73,221 cubic feet of contaminated material from the secondary side of the plant. Ward Valley is not projected to open during this program period and the current lower cates ($70 per cubic foot) were utilized in this study. Once the Ward Valley facility is operational the District is mandated by the Southwest Compact to utilize that facility.

But because Ward Valley is not yet operational the Districtis able e sffset other cost increases in the estimate.

SUMMARY

and CONCLUSIONS The costa reported in the following tables wera generated as an update to the 1995 decommissioning estimate for RSNGS. TLG employed the same software used in preparing the 1995 estimate and as such there is no difference in the cost estimating methodology between the two estimates. The resulting estimate, $452.2 million,

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R:ncho Seca Nucle:r Generating St:llon 511 12 #-001 1997 Cost Update Page 10 of 25 methodology between the two estimates. The resulting estimate, $452.2 million, represented an approximate 2.57% increase over that cost projected in 1995 for plant safe storage, deferred decontamination and dismantling, and interim spent fuel caretaking prior to the termination of the Part 50 license. Many of the costa increases were offset due to the lower burial disposal cost utilized by the incremental decommissioning program.

Uncertainties in both high and low level radioactive wastt disposal will continue to produce changes in the future funding requirements for decommissioning. Periodic reviews and evaluations provide a necessary monitoring function and should continue over the decommissioning period.

i R:ncho Seco Nucl=r Generating St: tion S11 12 0 001 1997 Cost Update Page 11 of 25 4

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I TABLEI 19961997 CONT COMPARISON (Thousands of Dollars) 1996 1997 RAF8 TOR BAF8 TOR

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Phases 1 through 6 Decontamination N888 581 621 Systems 385 385 Structures 2,422 2.447 Equipment & Materials 1,482 1,516 Waste Processing 691 714 Subtotal 5,561 5,683 Removal NS88 8,672 8,990 Systems

!!,705 12,505 Structures 2.972 3,142 Asbestos 1,051 2,066 Equipment & Materials 9,956 11,118 1 1 Other 845 912 Subtotal 30.103 38,735 Packering NSSS 6,101 0,128 Systems 1,779 1,754 Structures 215 211 Aslestos 470 524 Other 1,085 864 Subtotal 9,648 D,479 Transportation NSSS 1,258 1,261 Systems 653 662 Structures 79 80 Amlestos 10 10 i

Other 224 249 Subtotal 2,223 2,261 i

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R:ncho Seco Nuclear Generating St: tion S11 12 0 001 1997 Cost Update Pagt it of 25 TABLE 1 19961997 COST COMPARISON (Thousands of Dollars) 1996 1997 BAF8 TOR BAFSTOr.

Phases 1 through 8 Wasts Durial NSSS 20,102 20,102 Systems 81,710 67,188 Structures 9,021 9,021 Asbestos 9G8 968 Other 4.264 4.270 Subtotal 116,124 91,609 Stamng Previously Expended Staff Costs 30,449 54,957 Custodial SAFSTOR Costs to Phase 3 20,049 42,278 Tohl Site Staff. Phases 1 through 2 n/a n/a Phase 3 Stamng. Utility 11,441 0,522 Phase 4 Stamng. Utility 18,000 15,814 Phase 5 Stamng. Utility 3,996 4,325 Phase 5 Stamng. DOC 19,772 20,701 Phsee G Stamng Utility 8,740 9,460 Phase O Stamng. DOC 48,391 49,907 Security Support Costs 76 100 Fixed Overhand 2.479 2.249 Subtotal 170,29 [

206,373 Other Previously Expd. Capital Costs 4,879

- 4,879 Capital / Plant Costs to Phase 3 6,944 6,944 ISFSI Construction / support 18,873 21,131 Insurance-10,454 8,745 NRC/EP Fees 3,173 3044 Water Reclamation 170 122 Miscellaneous 5.082 5.107 Subtotal 49,575 49,972 Contingency 51,317 48,070 TOTAL 440,844 452,189

, Rcnghs Seca Nuclear Generating Stallon S11-1249-001

,1997 Ccst Update Page 13 of 25 TA!!!E a SUMM AkY OF 8Ar8 TOR l*COMMINsl0NING COMT8 LICI:NSE TTRMINATION COSTS (1%ewende of 1991Dellars)

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Cent Update Page 15of ts TABLES SAP 3 TOR NMT ESTEM 4TE IThesemedeof1997 DeaW LICENSE TERMINATION COSTS -SAFSTOR Acteeindes Deeee Reennee Ferk Ship 9ery Othee reegry

% Coese, Toast A CF RCF C CF er CF M Hee M Reue Fbase a U hl Cmse i Decem supphee 72 to 25%

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ans le Emergency P=-= Fees 33 8

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4 13 Water Rac =-- Fees Id 12 30 %

334 e

e Sabeusal Uedstrehused Chese Phase 3 tot 59 te5 1935 455 32%

1435 1P9 199 Tiss e

Ses5 Comes Utsbay Staff Case ES22 9'8 13%

7300 TOTAL FMASE 3 COST TO SAFSTOR teI 59 tes 7E24 1134 IS%

9938 999 399 2743 4

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TABLE 3 SAFSTOR COST ES (Thousands of 1997 LICENSE TERMINATION COSTS - SAFSTOR Activities Decon Rernove Pack Ship Bury

(

Decornmissioning Funds Previously Expended Phase 2: Custodlai SAFSTOR Custodial Safstor Costs 1997 IncrementalDecommissionin; 1997 CustodialSafstor Costs ;398 IncrementalDecommissioning 1998 Custodial Safstor Costs - 1999 Incremental Decommissioning - 1999 Total Phase 2: Custodial SAFSTOR - Incrernental Decommissionin g Disposal of Secondary Side Systems 1.1 Air Ejector System (AES) Clean 4

1.2 Air Ejecto-System (AES) Contaminated 13 1

0.47 8

1.3 Auxiliary Feedwater (AFW) 17 1.4 Auxiliary Steam (ASC) 405 61 24 439 1.5 Component Cooling Water (CCW) Clean 19 1.0 Component Cooling Water (CCW) Contam.

39 5

2 35 1.7 Containment Building Spray (CBS)-Clean 24 21 1.8 Demineralized Water System (DhfW) Clean 64 1.9 Demineralized Water System (DhfW) Cont.

40 4

1 29 1.10 Electrical (Clean) 225 1.11 Feedwater (FWS). (1) 387 99 39 732 1.12 Feedwater(FWS)-(2) 334 43 17 309 1.13 Fire Protection (FPS) Clean 6

1.14 Oland Steam and Condenser (GSC) 368 61 24 451 1.15 HVAC Turbine 44 1.16 Heater, Drain and Vents (HDV) Clean 79 1.17 Heater, Drain and Venta (HDV) Cont.

45 3

1 20 1.18 High Pressure Turbine (HPT) 426 48 18 33G 1.19 Hydrogen Gas (HGS). Clean 29 1.20 Hydrogen Gas (HGS). Contaminated 2

0,14 0.04 1

1.21 Instrument Air (IAS) Clean 22 1.22 low Pressure Turbine (LPT) 524 94 46 1842 L23 Lube Otl(LOS) 31 1.24 hiain Circulating Water (h!CW) 28 1.25 hiain Condensate and hiake-up (h! Chi)-Clean 191 1.2G hiain Condensate and blake up (h1 Chi) Cont.

182 48 14 241 1.27 h!ain Feedwater (h!FW) 18 L28 h1ain Steam (h1SS) 91 12 4

72 1.29 Nitrogen Gas (NGS) 22 28 1.30 Nuclear Raw Water (NRW) 39 1

= ~.

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7 S11-1249-001 P:g2 13 cf 25

'IMATE

)ollir:)

th r Catgey

% Catgey Total A Cl-B CF C CF

>C CF M-Hrs M Rem TG53 77653 4

ANSTEC

,356 1,,3, APERTURE 840 840 l'd

'I'd CARD 5908 5908 1300 1300 Aloo Availab!o on B222 49222 Aperturo Card 1

15%

4 113 5

24%

28 112 348 0.001 3

15%

20 491 221 24%

1151 6273 11047 0.04 3

15 %

21 527 19 24%

101 601 1073 0.02 17 38%

63 1093 10 15%

73 1804 18 24%

92 415 1081 0.005 34 15%

259 6207 296 24%

1553 10455 10897 0.05 168 24%

871 4413 9285 0.20 1

15%

7 175 214 24%

1119 6441 10194 0.04 7

15%

50 1169 12 15%

91 2283 17 24%

86 279 1229 0,00 198 24%

1026 4801 11719 0.10 4

15%

33 808 1

24%

3 12 48 0.0001 3

15%

25 613 608 24%

3114 26317 14539 0.0G 5

15%

35 860 4

15%

32 789 29 15%

220 5304 113 23%

598 3443 5073 0.02 3

15%

21 531 43 24%

221 1029 2480 0.01 18 3G%

69 1249 6

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45 1126 l

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.' Ntnch9 3ec: N:cis:r Gen: rating St tion C::t Upd:t2 TABLE 3 SAFS't'OR COST ES (Thousands of IH7 LICENSE TERMINATION COS's'S - SAFSTOR Activities Decon Remove Pack Ship Bury

(

Disposal of Secondary Side Systems (contmued) 1.31 Plant Communication (CSP) 0.2G 1.32 Plant Computer (PCS) 2 1.33 Plant Cooling Water (PCW) 3 1.34 Rad. Detect. and Monitoring (RDhi)-Clean 3

1.35 Seal Od (SOS) 31 1.3G Secondary Chemical Addition (SCA) 64 1.37 Semce Air (SAS). Clean 29 1.38 Turbine Plant Coohng Water (*1CW) 269 28 10 189 1.39 Turbine Plant Sample (TSS) 244 5G 22 422 1.40 Turbine Superv Irutruments (TSI) 2 1 Totalincremental Decommiasioning 4G 4370 564 225 5125 Phase 2 Incremental Decommissioning Undistributed Costs 1 Pipe Cutting Equipment 125 2 lleavy Equipment Rental 200 3 Auxiliary Support Equipment 60 4 Health Physica Supplies 220 Subtotal Incremental Decommissioning Undistnbuted Costa 605 TOTAL PilASE 2 46 4975 564 225 5125 Phase 3: liardened SAFSTOR Preparations 2 Prepare License Amendment for liardened SAFSTOR 3 Prepare liardened SAFSTOR Specifications 3.1 Decontaminate / secure structures and facilities 3.2 Facihty and site dormancy 4 Prepare Lay up Work Piucedures 4.1 Decontaminatelsecure structures and facihties 4.2 Facility closcout & dormancy 5 Complete transfer of spent fuel to dry storage G Drain Spent fuel pool 7 Harden / Secure Site Buildings and Facilities 7.1 Reactor Building 7.2 Auxiliary Building 7.3 FuelStorage Area 7.4 IOS Facdity 7.5 Turbine Building 8 Interim survey prior to dormancy 9 Prepare and submit interim report l

l

511-1249-001 Pag 2 14 tf 25 IMATE kallar: )

ANSTEC ber Catgey

% Catgey Total A CF B CF C CF

>C CF M-H rs M-Rem APERTURE 0.04 15%

0.30 7

CARD 0.31 15%

2 57 0.42 15%

3 81 0.47 15%

4 87 Also Availabi a

15 %

36 901 Aperture Card 10 15%

74 1792 4

15%

34 842 119 24%

615 2701 7381 0.03 175 24%

919 6029 6646 0.03 0.31 15%

2 60 2392 23 %

12722 73221 122007 1

19 15 %

144 30 15%

230 9

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69 55 25%

275 113 10%

718 1222 2605 4%

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a a

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• R:ncM Seca Nuctsar Generating St:ti:n Cxt Updat2 i

TABLE 3 SAFSTOR COST E (Thousands of 199' LICENSE TERMINATION COSTS -SAFSTOR Activities Decon Remove Pack Ship Bury Phase 3 Undistnbuted Costs 1 Decon supphes 72 2 Process liquid waste 29 15 3 Insurance 4 }{ealth physics supphes 24 5 Sman tool anowance 35 6 Disposal of Stored LSA Waste 81 7 Disposal of DAW generated 9

8 NRC ISFSI Fees 9 NRC Fees 10 Emergency Planning Fees 11 Fixed Utihty Overhead for Site 12 Security Support Costa 13 Water Reclamation Fees Subtotal Undistributed Costa Phase 3 101 59 105 Staff Costs Utility Staff Cost TOTAL PilASE 3 COST TO SAFSTOR 101 59 105 Phase 4: liardened SAFSTOR Dormancy (Annual M.intenance Costs) 1 Quarterly Inspection 2 Semi annual environmental survey 3 Prepare reports 4 Health physica supphes 5 Insurance 6 Disposal of contaminated solid waste 0.09 7 h!aintenance supphes 8 NRC ISFSI Fees 9 NRC Fees 10 Emergency Planning Fees 11 Ftxed Utihty Overhead for Site 12 Secunty Support Costa 13 Site maintenance staff Phase 4 Annualh!aintenance Totals 0.09 MAINTENANCE COST FOR 7.4142 YEARS DORMANCY:

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ld S11-1249-001 Pig 2 15ef 25 ANSTEC APERTURE TIMATE Dollars)

CARD I

Also Availablo ori Aperturo Card

>ther Catgey

% Catgey Total A CF B CF C CF

>C CF M Hrs M-Rem 18 25%

90 16 37 %

60 199 48 0.09 378 38 10%

416 6

25%

30 5

15%

40 8

10%

89 900 2448 6

1 10%

10 99 269 0.05 130 13 10%

143 278 28 10%

SOG 13 1

10%

14 89 9

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98 4

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4 122 12 10%

134 1015 150 12%

143G 999 199 2765 G

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7500 7536 1134 15%

893G 999 199 2765 6

a a

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55 662 GG 10%

729 0.01 10%

0.10 10 3

94 23 25 %

117 2G1 2G 10%

287 176 18 10%

193 2G 2.60 10%

29 177 18 10%

195 8

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8 2133 320 15 %

2453 3581 485 14%

40GG 10 3

$30,147,190 j

a i

' " R' nch Seca Nucl::r Gen:r ting St: tion C::t Updzt2 TABLE 3 SAFSTOR COST E l

(Thousands of 199 LICENSE TERMINATION COSTS -SAFSTOR Activities Decon Remove Pack Ship Bury Phase 6: Deferred DECON 1 Review plant dwgs & specs.

2 Perform detaded rad survey 3 End product description 4 Decailed by product inventory 5 Define major work sequence G Perform safet; analysis Activity Specifications 10.1 Re activate plant & temporary facilities 10.2 Plant systems 10.3 Reactor internals 10.4 Eeactor vessel 10.5 Biological shield 10.G Steam generators 10.7 Reinforced conente 10.8 Turbine & condenser 10.9 Plant structures & buildings 10.10 Waste management 10.11 Facihty & site closeout Planning & Site Preparations 11 Prepare dismantling sequence 12 Plant prep. & temp svees 13 Design water clean-up system 14 Rigging /CCEs/ tooling /etc.

15 Procure casks /hners & containers Detailed Work Procedures 16.1 Plant systems 16.2 Vessel head 16.3 Reactor internals 16.4 Remaining buildmgs 16.5 CRD cooling assembly 16.0 CRD housings & ICI tubes 10.7 incere instrumentation 10.8 Reactor vessel 16.9 Facihty closeout 16.10 Missile shields 16.11 Biological shield 10.12 Steam generators 16.13 Reinforced concrete 16.14 Turbine & condensers 16.15 Auuhary building 16.16 Reactor building l

w

S11-12 0-001 Page 16of 25 l

l l

MMATE kitars) bber Catscy

% Catgey Total A CF B CF C CF

>C CF M-Hrs M-Rem b

b b

ANSTEC APERTURE s

CARD b

I80 Available on b

b P*!tUre Card b

b b

b b

b b

240 36 15%

276-1805 271 15%

2076 140 21 15%

161 1528 229 15 %

1757-123 18 15 %

141 b

b b

b b

b b

b b

b b

b b.

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l

'Rhnchs Seco Nucimr Gener ting Stati:n

\\

Ccct Upd te TABLE 3 SAFSTOR COST FJ (Thousands of 1991 LICENSE TERMINATION COSTf,- SAFSTOR Activities Decon Remove Pack Ship Bury i

Phase 5 Additwnal Costs 17 Crane Refurbishment Completed in 1996 Subtotal Phase 5 Activity Costa Phase 5 Undistnbuted Costa 1 DOC staff relocation expenses 912 2 Insurance 3 Health physics supplies 245 4 Heavy equipment rental 4tiG 5 Disoosal of DAW generated 27 G NRC ISFSI Fees 7 NRC Fees 8 Emergency Planning Fees D Fixed Utility Overhead for Site 10 Secunty Support Costs Suhtotal Undistributed Costa Phase 5 1624 27 Staff Costa DOC Staff Cost Utility Staff Cost Total Phase 5 Cost 1624 27

/

em m

h S11-1249-001 Page 17of 25 IMATE ollars) her Ontfey t.Catfey Total A CF B CF C CF

>C CF M-Hrs M Rem g APERTURE G

575 15%

4412

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1049 Aperturo Card 996 100 10%

1096 G1 25 %

300 70 15 %

536 3

10%

29 295 803 0.16 392 39 10%

431 302 30 10%

333 37 4

10%

43 2GG 27 10%

293 12 1.16 10%

13 l007 471 13%

4129 295 803 0.16 l?G1 2805 14%

235G5 1325 G49 15 %

4974 929 4500 14?.

37080 295 803 0,16

)

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', 5tincho Sec2 Nuchar Gen; rating St:ti:n C:st Updzt2 TABLE 3 SAFSTT)R COST ES (Thousands of 1991 LICENSE TERMINATION COSTS -SAFSTOR Activi'.les Decon Remove Pack Ship Bury t

Phase 6: Deferred DECON 18 Remove spent fuelracks 258 45 57 14 5142 19 Disposalof11W from Phases 2 5 21 681 Nuclear Steam Supply System Removal 20.1 Reactor Coolant Piping G7 135 5

4 172 20.2 Pressurizer Relief Tank 12 69 4

3 184 20.3 Reactor Coolant Pumpa & Motors 103 59 39 14 4500 20.4 Pressurizer 21 40 5

6 821 20.5 Steam Generators 99 2154 5168 445 G064 20.6 CRDMs/ICis/ Service Structure Removal 92 55 8G 12 1430 20,7 Reactor Vessel!nternals 88 2071 323 54G 1212 20.8 ReactorVessel 138 440G 497 231 2706 20 Totals 621 8990 6128 1261 17000 Removal of Major Equipment 21 Main Turbine / Generator 98 G8 12 878 22 Main Condensers 273 23 Asbestos removalprogram 20GG

$24 10 968 Disposal of Plant Systems 24.1 Auxiliary Feedwater(AFW) 4 24.2 Auxiliary Steam (ASC) 45 7

3 282 24.3 Borated Water (BWS) 341 35 12 1521 24.4 Carbm Dioxide (COS) 15 24.5 Com> - Cooling Water (CCW) Clean 74

?4 6 Component Cooling Water (CCW) Contam, 223 29 11 1150 24.7 Containment Building Spray (CBS)-Clean G

5 24.8 Containment Building Spray (CBS) Contam.

27 2

0.50 80 l

24.9 Containment Electrical Penetration (CEP) 45 2

0.96 103 24.10 Control Rod Drive (CRD) 38 3

1 148 24.11 Core Flood (CFS) 390 30 10 1015 24.12 Decay Heat (DHS) 359 50 19 1986 24.13 Demineralized Water System (DMW). Clean 16 24.14 Demineralized Water System (DMW) Cont.

27 3

1 112 2415 Drainage and Sewerage (CDS) Clean 61 24.16 Drainage and Sewerage (CDS) Contam.

121 18 6

738 24.17 Electrical (Clean) 225 24.18 Electrical (Contaminated) 604 8G 3G 3926 24.19 Electrical (Decontaminated) 34 170 24.20 Electr& Hydraulic Otl(EHO) 19 21.21 Extraction Steam (ESS) 47 8

3 268 I

1 i

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~r w S11 1249-001 Pap 18cf 25 ANSTEC APERTURE utre CARD

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Also Avall0ble on A erture Card P

ier Catgey

?. Catgey Tot.1 A CF B CF C CF

>C CF M-H rs M-Re m 918 17%

6434 12696 6667 3

105 15%

807 94 25%

477 425 6214 1

52 19%

324 455 2166 0.60 747 16%

5463 11112 4446 1

145 16%

1040 2028 1581 0.34 2336 17 %

16266 14974 56545 14 285 17%

1961 3531 3658 1

1349 32%

5589 2902 168 19832 2

424:

53%

12211 4847 1834 22988 2

9241 27 %

43332 37371 1834 2992 116430 22 155 15%

1211 2147 2598 0.30 41 15%

314 7062 708 20%

4277 2390 56803 0.17 1

15%

5 123 55 16%

391 697 1227 0.005 319 17 %

2228 3756 9245 0.43 2

15%

17 431 11 15%

86 1984 233 16%

1646 2840 6078 0.12 4

33 %

15 273 19 17 %

128 197 716 0.00 27 18%

178 254 1261 0.01 32 17%

224 366 1046 0.10 254 18%

1699 2507 10574 0.70 395 1696 2809 4904 9871 2

2 1596 18 451 24 17%

166 277 720 0.003 9

15%

70 1693 144 16%

1027 1823 3290 0.02 34 1596 259 4138 754 16%

5406 9693 17106 0.09 43 21%

247 5572 3

15 %

22 529 53 16%

379 663 1292 0.00

/

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' Rinch: Seca Nucl::r Gen: rating St:ti:n C:st Upd t2 TABLE 3 SAFSTOR COST FJ (Thousands of 1991 LICENSE TERMINATION COSTS -SAFSTOR Activities Decon Remove Pack Ship Bury 4

Disposal of Plant Systems (contmued) 24 22 Feedwater(FWS) (1) 97 25 10 1059 24.23 Feedwater (FWS). (2) 37 5

2 199 24.24 Fire Protection (FPS). Clean 35 24.25 Fire Protection (FPS). Contaminated 15 1.01 0.34 36 24 26 Fuel Handhng (FIIS) 26 23 10 1056 24.27 IIVAC. Auxiliary (Clean) 76 24.28 HVAC. Auxiliary (Contaminated) 143 48 19 2212 24 29 IIVAC Fuel Area 14 24.30 IIVAC IOS 25 24.31 IIVAC. Reactor 374 223 91 10186 24.32 flydrogen Gas (IIGS). Contaminated 1

0.09 0.03 3

24.33 Instrument Air (IAS). Clean 22 24.34 Instrument Air (IAS). Decontaminated 3

3 24.35 Lube Oil (LOS) 31 24.36 Main Condensate and hiake up (MCh0-Cont.

45 12 3

349 24.37 Main Control Room (MCR) 7 24.38 Main Feedwater (M7W) 12 24.39 Mam Steam (MSS) 61 8

3 278 24.40 Nitrogen Gas (NGS) 22 28 24.41 Non. Nuclear Instrumentation (NNI) 23 24.42 Nuclear Instrumentation (NIS) 26 24.43 Nuclear Raw Water (NRW) 10 24.44 Nuclear Service Water (NSW). Clean 46 24.45 Nuclear Service Water (NSW) Contam.

122 12 5

487 24.46 Plant Communication (CSP) 5 24 47 Plant Computer (FCS) 2 24.48 Plant Coohng Water (PCW) 11 24.49 Plant Secunty (PSS) 9 24.50 Pressurizer Rehef Tank (PRT) 46 6

2 245 24.51 Purification and letdown (PIE) 244 28 9

1225 24.52 Rad. Detect. and Monitoring (RDM)-Clean 13 24.53 Rad. Detect. and Monitoring (RDh0 Cont.

1 0.05 0.02 2

24.54 Radwaste (RWS) 1275 251 DG 10858 24 55 Reactor Coolant Drain (RCD) 101 15 5

592 24.56 Reactor Protective (RPS) 16 24.57 Reactor Sample (RSS) 136 29 11 1285 24.58 Safety Features (SFS) 13 l

I

S11-1249-001 Pag 2 19 of 25 ANSTEC APERTURE CMQQ mMATE Dollars)

Also Available on Aperture Card

~)th r Catgey

% Catgey Total A CF B CF C CF

>C CF M-H rs M-Rem 187 16%

1377 2614 2724 0.01 40 16%

282 490 1032 0.02 5

15%

40 932 9

18%

62 88 420 0.00 169 15%

1284 2609 797 0.08 11 15%

87 20t10 375 15%

2798 5462 3591 0.02 2

15 %

16 381 4

15%

29 663 1657 15%

12531 25151 9797 0.05 1

18%

5 8

32 0.0001 3

15%

25 613 2

24%

8 150 5

15 %

35 573 65 16%

475 861 1268 0.01 0.98 15%

7 178 2

15%

14 354 58 17%

407 686 1654 0.01 15 30%

66 1249 3

15%

27 673 4

15%

30 756 1

?.5%

11 83 7

15%

53 1327 106 17 %

732 1203 3381 0.01 1

15 %

6 133 0.31 15%

2 46 1.69 15 %

13 272 1

15 %

10 230 49 16%

349 60G 1276 0.18 249 17 %

1755 3025 6617 0.68 2

15 %

14 350 0.65 19%

4 5

41 0.00 1987 16%

14466 26810 34862 7

116 16 %

329 1461 2744 0.55 2

15%

19 440 231 16%

1692 3172 3691 0.79 2

15%

15 348

,mm

_J

n --

R:nch2 Seca Nucl: r Gen: rating St:ti:n r

C::t Updat2 i

TABLE 3 SAFSTOR COST El (Thousands of 1991 LICENSE TERMINATION COSTS -SAFSTOR Activities Decon Remove Pack Ship Bury Disp %al of Plant Systems (continued) 24.59 Seallnjection and Make up (SIM) 83 28 12 1261 24.60 Service Air (SAS) Clean 29 24.61 Service Air (SAS). Decontaminated 16 20 24.62 Service Water (SWS) 35 24.63 Spent Fuel Cooling (SFC) 132 18 7

711 24.64 Steam Generator (SOS) 204 25 10 1015 24.65 Turbine Superv Instruments (TSI) 2 24.66 Waste Oas (WOS) 185 36 15 1654 24 Totals 81 6696 1065 412 46043 25 Erect scaffolding for systems removal 1023 Decontamination of Site Buildings 26.1 Reactor Building 986 47b 117 45 5075 26.2 Auxiliary Building 486 16 12 5

535 26.3 FuelStorage Area 289 277 13 27 3018 26.4 IOS Facility 196 15 9

4 385 26.5 Tank Farm & Chemical Addition 158 26.6 Turbine Building 331 0.20 0.08 9

26 Totals 2447 78G 211 80 9021 Demohtion of Site Buildings 27.1 Reactor Building 940 27.2 Auxiliary Building 970 27.3 Fuel Storage Area 405 27.4 Tank Farm & Chemical Addition 40 27 Total 2356 28 License termination survey 29 Terminate license Subtotal Phase 6 Activity Costa 3408 22334 8052 1811 70823 i

.., ~.

j S11-12 0-001 Page 20of 25 ANSTEC APERTURE nw nonaro CARD Also Available on Aperture Card ther Catgey

% Catgey Total A CF B CF C CF

>C CF M.H rs M Rem 214 15 %

1599 3115 2292 0.17 4

15%

34 842 11 37%

46 884 5

15 %

40 947 143 16%

1011 1756 3G11 0.69 207 17 %

14GO 2505 5647 0.68 0.3 15 %

2 GO 300 16%

2190 4084 4973 0.57 8679 16%

G2977 113687 182G17 15 153 15 %

1176 19G31 1

1385 21%

808G 12530 32829 5

329 31%

1383 1320 10193 1

6'i8 18%

43G1 1452 14599 2

161 2G%

769 950 4335 79 50%

237 3865 0.19 167 49%

508 22 GG79 2799 22%

15343 22274 72499 8

141 15 %

1081 16G32 14G 15%

1116 12830 G1 15%

4GG 7518 6

$5%

4G 777 353 15 %

2710 37764 268 40 15 %

309 a

268 23194 20%

138890-1905G5 1834 2992 502161 50 l

i f

f

'Aa

r.,,

., = =

's ' Rincho Seca Nucts:r Gen:roting St: tion i

Cost Upd:te TABLEI SAFSTOR COST E (Thousands of its LICENSE TERMINATION COSTS -SAF8 TOR Activities Decon Reneve Pack Ship Bury Phase 0 Undietributed Costa 1 Decon equipment 650 2 Decon supplies 794 311RW Processing Equipment 388 4 Process liquid waste 297 150 190 827 1

6 Insurance 6 Health phyenes supphes 2446 7 Ileavy equipment natal 6182 8 Small tool allowance 402-9 Pipe cutting equipment 714 10 Disposal of DAW generated 580 14 2700 11 NRC ISFSI Fees 12 NRC Fees 4

13 Emergency Planning Fees 14 Fiaed Utility Overhead for Site 15 Security Support Costa Subtotal Undietributed Costa Phane 6

-2130 9742 730 204 3587 StaK Costa DOC StaN Cost Utihty Stan Cost TOTAL PHASE e 5587 33076 8782 3014 88411 0700 Disposal 3072 TOTAL LICENSE TERM. COST TO DECOMMISSION 6686 38733 9479 stas 91608 I

Notes: a" Acthitica are to be performed by Utihty staN "b" Activitice are to be performed by DOC staK

"" Waste volumes generated in Phases 2 5 I

n

'4 M%

S11-1249-001 Page 21 of 25 ANSTEC

@',j APERTURE CARD Also Available on ger Catgey

'eCntgey Total A CF 11 CF C CF

>C CF M.llre M.Rhertur0 Card 98 15%

748 199 25 %

993 194 60%

682 316 22%

1781 2023 4G5 0.85 400 247 10%

2712 611 25%

3056 927 15%

7109 60 15%

402 107 15%

821 474 14%

3828 G815 17653 3

858 80 10%

943 810 83 10%

913 85 9

10%

94 582 68 10%

G40 25 3

10%

2S 140 3471 IG%

24710 6815 2023 18018 4

3 17 7480 15%

57393 4GO 1419 15%

10879 A81 35570 18'i 231871 197360 3867 2992 620179 64 768 25 %

3840 4G9 48076 12'4 452189 371970 4056 2992 168 648773 61 rm

" ~T ' R:ncho Sec2 Nucl::r G:n:rcting 5tzti:n 1

C:st Updzte TABLEa SAPSTOlt COST 11 (Thousands of 199 CLEAN COSTS - SAFSTOR Activities Decon Remove Pack Ship 11ury Phase or Deferred DECON Disposalof Plant Systems 1.1 Component Cooling Water (CCW). Clean 31 1.2 Drainage and Sewerage (CDS). Clean G1 1.3 Electncal(Clean; 450 1.4 Emergency Generator (EOS) 17 1.5 Fire Protection (FPS). Clean 22 1.6 !!VAC. Battery Building 7

1.7 IIVAC. Miscellaneoue 30 1.8 liVAC.1;SE Building 26 1.9 Lube Od (LOS)

G1 1.10 Plain Circulating Water (MCW)

G4 1.11 Nuclear Raw Water (NRW) 74 1.12 Nuclear Service Water (NSW). Clean 40 1.13 Plant Communication (CSP) 2 1.14 Plant Computer (PCS) 1 1.15 Plant Cooling Water (PCW) 42 1.16 Plant Security (PSS) 5 1.17 Service Watt. (SWS) 35 1 Total 976 Subtotal Phane G Activity Costa 976 Phase G Undistnbuted Costa 1 Ileavy equipment rental G87 2 Small tool allowance 45 Subtotal Undiatnbuted Costa Phase G 732 TOTAL PIIASE 6 1707 l

321 1249-001 Page !!of 25 ANSTEC APERTURE TIMATE Dollar:)

>ther Cntrey

'. Cntrey _

Total A CF 11 CF C CF

>CCF M-Ilre Mabo Availtiblo on r.perturo Card 5

15%

3G 1033 9

15%

70 IG93 68 15 %

$18 1G553 3

15%

20 5.0 3

15%

25 095 1

15%

8 199 4

15%

34 807 4

15%

30 716 9

15%

70 2293 10 15 %

74 2G30 11 15%

85 3104 7

15%

$3 1327 0.26 15%

2 49 0.21 15%

2 01 G

15%

49 1275 0.09 15%

5 124 5

15%

40 047 14G 15%

1122 34016 140 15%

1122 34016 103 15 %

790 7

15%

51 110 15 %

841 256 15*.

1963 34016 6

l l

-M 4=* Re,

'Rincho Secs Nucle:r Gen: rating St: tion Cost Upd:te TABLE 8 SAFSTOR COST El (Thousands of 1991 CLEAN COSTS -SAFSTOR Activities Decon Remove Pack Ship Bury PHASE 7: Site Restoration Demolition of Remahung Site Buddings 2.1 Reactor Budding 6328 2.2 Auxiliary Building 2911

- 2.3 Battery Budding 146 2.4 Chlorination Building 49 2 5 Control Panel 2

2.6 Cooling Towers 4135 2.7 Fire Equipment Enclosun 5

2.8 FuelStorage Area 945 2.9 Gasoline and Fuel Service Station 9

2.10 IOS Facihty 1234 2.11 bliscellaneous Yard Structures f *,d 2.12 h!ultiplex Buildings 63 2.13 Nuclear Service Electrical Bldg 1328 2.14 Nuclear Service Spray Ponds 100 2.15 Off Site Receiving and Inspection Fac.

59 2.16 Personnel Access Portal 268 2.17 Pipe Fabrication Building 62 2.18 Retention Basin 19 2.19 Tank Farm & Chemical Addition 364 2.20 Training and Records Buildins

!!32 2.21 Turbine Building 1919 2 22 Turbine Pedestal 672 2.23 Water Treatment Building 85 2 Totals 21173 L CJ

f S11.I249-001 Page 23 of 25 ANSTEC APERTURE

=rs Dollars)

CARD ther Ontrey

'sCntgey Total A CF B CF C CF

>C CF M.Ilrs bl.

AvailaNe on erturo Card 799 15%

6128 94249 437 15%

3348 38508 22 15%

168 2276 7

15%

57 1039 0.23 15%

2 33 620 15%

4755 83074 0.82 15%

6 58 142 15 %

1087 17543 1

15 %

10 141 185 15%

1419 g0344 51 15%

389

$cg9 9

15%

72 1381 199 15 %

1527 18164 15 15%

115 1210 9

15%

67 1053 40 15%

308 3461 9

15%

71 1238 3

15%

22 290 SJ 15%

418 6997 170 15%

1301 12599 288 15%

2207 36801 101 15%

773 9120 13 15%

97 Iggo 317G 15%

24348 35G953

/

/

i

/

]

I

a at:ncho Seca Nucl:rr Gen: rating St: tion i

i Cost Updst2

't 1

i TABLEC SAFSTOR COSTQ (Thousands of 199' CLEAN COSTS.SAFSTOR Activities Decom Remove Pack Sktp Bury Site Closeout Actmtwa 3 Remove Rubble 1440 4 Orade & landscape site 1494 Subtotal Phase 7 AetMty Costs 24107 Phase 7 Undietributed Coets

~

1 Heavy equipment rental 2138 2 Small tool allowance 289 3 Fixed Utility Overhead for Site 4 Security Support Coets 4

Subtotal Undistributed Costa Phase 7 2427 Staff Costs DOC Staff Cost Utility Staff Cost

)

TOTAL PHASE 7 34584

.1 TOTAL CLEAN COST TO DECOMMISSION 38341 i

4 l

g

S11-1249-001 Page 24 of 25 ANSTEC APERTURE 1 MATE CpQg

()ollare)

Also Available on ther Catgey

% Catgey Total A CF 11CF C CF

>C CF M llre M-Hem P9ftur8 Card 210 15%

1657 2791 224 15%

1718 6640 3610 15%

27723 30G384 321 15%

2459 43 15 %

333 73 7

10%

81 1.41 0.14 10%

2 75 372 15%

2874 9490 1423 15%

10913 745 112 15%

857 D309 6423 16*.

42367 366384 D309 6779 16 *.

44330 400400 f

/

s k

d

.a, c $ 'if=nchs Seca Nuclear Generating Stati:n Cc:t Updats TABLE 8 SAFSTOR COST l'>

(Thousands of 1991 FUEL COSTS. SAFSTOR Activitlen Decon Remove Pack Ship Bury 4

1 Decontamination ofISFSI Facihty 14 7

2 0.50 51 2 Demoht.on ofISFSI Facihty 430 3 Fmal Report to NRC/ License Termination Cost Fuel Undatnbuted Coote 1 Insurance 2 NRC ISFSI Fees 3 Emergency Planning Fees 4 Fixed Utdity Overhead for Site 5 Secuaty Support Costs Subtotal Undistnbuted Conte Fuel Staff Costa DOC Staff Cost Utility Staff Cost TOTAL FUEL COST 14 437 2

0.66 51 n.

b

.________u

.m_,-,

811 1249-001 P:g2 25cf 25 ANSTEC l'7,i APERTURE CARD c

ther Catgey

• . Catscy Total A CF 11 CF C CF

>C CF M.llre M Rem 6 U RM 17 22%

91 125 837 G5 15%

495 5345 166 23 15%

179 5179 318 10%

3496 4055 406 10%

4401 395 40 10%

435 712 71 10%

783 69 G

10%

G5 H401 d40 10%

9241 483 73 15%

SSG 0426 1414 15%

10840 5466 2431 13 *.

11401 126 6882 4

f

[

D c

l SACRAMENTO MUNICIPAL UTILITY DISTRICT Office Mesmorandum TO:

K. Miller Date:

July 18, 1997 FRON:

R. Jelicich

SUBJECT:

REVIEW OF DECONNISSIONING TRUST FUND AT 12/31/96 As requested, I am commenting on the adequacy of the Nuclear Decommissioning Trust Fund balance at December 31, 1996 relative to assumptions for inflation and rate of return on investments, calculation of fund bai==aaf

($000)

Balance per District 1996 balance sheet 118,497 Add accrued interest 1,328 Add unrealized losses 85 Balance at December 31, 1996 119.910 This balance exceeds the December 1996 expected balance of

$117,304 (calculated in 1994).

An unrealized gain or loss is the difference between the market value and cost of an investment.

An adjustment has been made above to eliminate the impact of unrealized gains or losses because we generally hold investments until maturity, thus not realizing an actual gain or loss.

The real rate of return on the portfolio wars 3.2% during 1996 (5.8% invertment return minus 2.6% 1996 increase in the producer price index or PPI).

This compares favorably with the 2.5% real rate of return that had been assumed for 1996.

In summary, the fund has performed in line with expectations, cci J. Tracy

_ _ _ _ _