View source for HBL-11-003, Decommissioning Funding Report

{{Adams
| number = ML110910149
| issue date = 03/31/2011
| title = Decommissioning Funding Report
| author name = Conway J
| author affiliation = Pacific Gas &amp; Electric Co
| addressee name = 
| addressee affiliation = NRC/FSME, NRC/Document Control Desk
| docket = 05000133
| license number = DPR-007
| contact person = 
| case reference number = HBL-11-003, OP-DPR-07
| document type = Financial Assurance Document, Letter type:HBL, Decommissioning Funding Plan DKTs 30, 40, 50, 70
| page count = 33
}}

=Text=
{{#Wiki_filter:Pacific Gas and Electric Company John T. Conway                        77 Beale Street Senior Vice President-Energy Supply & Mail Code B32 Chief Nuclear Officer                 San Francisco, CA 94105 March 31,2011                                                                           415.973.3336 Internal: 223.3336 Fax: 415.973.2313 PG&E Letter HBL-11-003                                10 CFR 50.75                      Alternate Address Diablo Canyon Power Plant
: p. O. Box 56 U.S. Nuclear Regulatory Commission                                                      Avila Beach, CA 93424 ATTN: Document Control Desk                                                             805.545.3333 Fax: 805.545.4884 Washington, DC 20555-0001 Docket No. 50-133, OP-DPR-7 Humboldt Bay Power Plant Unit 3 Decommissioning Funding Report for Humboldt Bay Power Plant Unit 3

==Dear Commissioners and Staff:==

PG&E is submitting the decommissioning funding report for Humboldt Bay Power Plant (HBPP) Unit 3, pursuant to the requirements of 10 CFR 50.75(f).
Humboldt Bay Unit 3 At the end of calendar year 2010, the market value of the HBPP Unit 3 (220 MWt) decommissioning trust funds was $313.8 million. PG&E estimates an additional
$69.15 million (future nominal dollars) will need to be collected over three years beginning in 2011 based on a site-specific decommissioning cost estimate prepared by TLG Services, Inc., and approved by the California Public Utilities Commission (CPU C) per Decision 0.10-07-047. The CPUC Application is based on an Independent Spent Fuel Storage Installation (ISFSI) that would be in operation until 2020 when all fuel would be removed from HBPP by the Department of Energy (DOE).
The market value of the HBPP trust, plus actual incurred costs through 2010, is lower than the minimum amount of the NRC decommissioning estimate of
 $619.0 million (2011 dollars) that was calculated pursuant to the requirements specified in 10 CFR 50.75(c), which is based on a minimum 1200 MWt plant.
PG&E is confident the HBPP trust, with the noted additional contributions, will be sufficient to ensure successful decommissioning and maintaining the spent fuel in an ISFS"I at HBPP until 2020 based on a site-specific decommissioning cost estimate prepared by TLG Services, Inc., and approved by the CPUC Decision 0.10-07-047.
Supporting Cost Estimates Based on a site-specific cost estimate prepared by TLG Services, Inc., PG&E has estimated that the decommissioning costs are approximately $555.9 million (including
 $127.0 million disbursed from the Trust(s) through December 2010 and $317.6 million future radiological removal costs) for HBPP Unit 3 in 2010 dollars. These costs do not include site restoration of the facilities ($2.0 million), nor spent fuel management until 2020 ($109.3 million).

Document Control Desk                                           PG&E Letter HBL-11-003 March 31,2011 Page 2 To assure that sufficient funds will be available for decommissioning, PG&E has established external sinking trust fund accounts for HBPP Unit 3.
Supporting Enclosures Supporting documentation for this report is included as Enclosures 1 through 4. provides decommissioning funding status information in a format suggested by Nuclear Energy Institute (NEI) and the NRC. provides information on the escalation of the required decommissioning funding amounts from 1986 dollars to 2010 dollars. As required by 10 CFR 50.75(c)(2),
and using NUREG-1577, "Standard Review Plan on Power Reactor Licensee Financial Qualifications and Decommissioning Funding Assurance," Revision 1, and NUREG-1307, "Report on Waste Burial Charges," Revision 14, the information includes escalation factors for energy, labor, and waste burial costs. is Appendix D from the TLG Services, Inc. decommissioning cost estimate report prepared in March 2009 for PG&E for HBPP Unit 3. The TLG Services, Inc. cost estimate has then been adjusted to reflect the costs in 2011 dollars per the CPUC Decision D.1 0-07 -04 7. The report provides cost estimates for decommissioning of nuclear, non-nuclear facilities, and spent fuel management, including operation of the ISFSI. is a cash flow of the total decommissioning of HBPP that identifies the monies for NRC scope (removal of radiological contamination), site restoration (including the nonradiological work), and the spent fuel management.
There are no regulatory commitments in this letter.
Should you have any questions in regard to this document please feel free to call Mr. Bob Kapus at (707) 444-0810.
Sincerely,
  ~
                /.
Joh T. Conway Senior Vice President - Energy Supply and Chief Nuclear Officer Enclosures cc/enc: Elmo E. Collins, NRC Region IV John B. Hickman, NRC Project Manager INPO HBPP Humboldt Distribution

Enclosure 1 PG&E Letter HBL-11-003 NRC Decommissioning Funding Status Report Humboldt Bay Power Plant - Unit 3 (220 MWt)
(2 pages)

Enclosure 1 PG&E Letter HBL-11-003 Page 1 of 2 NRC Decommissioning Funding Status Report Humboldt Bay Power Plant - Unit 3 (220 MWt)
As provided in 10 CFR 50. 75(f)(1), each power reactor licensee is required to report to the NRC on a calendar year basis, beginning March 31, 1999, and annually thereafter, on the status of its decommissioning funding for each reactor that it owns and has already closed.
                                                                                           $ in Millions
: 1. The minimum decommissioning fund estimate, pursuant to 10 CFR 50.75(b) and (C).1 January 2011 dollars                                                $619.0 (HBPP is a shutdown unit with a Site Specific Cost Study; therefore, the minimum decommissioning fund estimate is based on the Site Specific Cost Study shown in item 8 of this enclosure.)
: 2. The amount accumulated at the end of the calendar year preceding the date of the report for items included in 10 CFR 50.75(b) and (c). (Alternatively, the total amount accumulated at the end of the calendar year preceding the date of the report can be reported here if the cover letter transmitting the report provides the total estimate and indicates what portion of that estimate is for items not included in 10 CFR 50.75(b) and (c)).
Market Value (December 201 0 dollars)                               $313.8
: 3. A schedule of the annual amounts remaining to be collected for items in 10 CFR 50.75(b) and (c). (Alternatively, the annual amounts remaining to be collected can include items beyond those required in 10 CFR 50.75(b) and (c) if the cover letter transmitting the report provides a total cost estimate and indicates what portion of that estimate is for items that are not included in 10 CFR 50.75(b) and (c)). All values below are from 2009 Nuclear Decommissioning Cost Triennial Proceeding (NDCTP) filing, Final Decision D.10-07-047.
Amount remaining                                                      $69.15 Number of years to collect beginning in 2010                          3 years Annual amount to be collected                                         $23.05 1
* The NRC formulas in section 10 CFR 50.75(c) include only those decommissioning costs incurred by licensees to remove a facility or site safely from service and reduce residual radioactivity to levels that permit: (1) release of the property for unrestricted use and termination of the license; or (2) release of the property under restricted conditions and termination of the license. The cost of dismantling or demolishing nonradiological systems and structures is not included in the NRC decommissioning cost estimates. The costs of managing and storing spent fuel on site until transfers to Department of Energy are not included in the cost formulas.

Enclosure 1 PG&E Letter HBL-11-003 Page 2 of 2
: 4. The assumptions used regarding escalation in decommissioning cost, rates of earnings on decommissioning funds (assumes trust will be gradually converted to a more conservative, all fixed income portfolio after 2010), and rates of other factors used in funding projections (all values below are from the2009 NDCTP filing).
Escalation in decommissioning costs Rate of Return on Qualified Trust 2011                             3.76 percent Rate of Return on Qualified Trust 2012                             3.34 percent Rate of Return on Qualified Trust 2013                             2.95 percent Rate of Return on Qualified Trust (2014-2020)                      2.95 percent Rate of Return  on  Nonqualified Trust 2011                        2.95 percent Rate  of Return on  Nonqualified Trust 2012                        2.95 percent Rate  of Return on  Nonqualified Trust 2013                        2.95 percent Rate  of Return on  Nonqualified Trust (2014-2020)                 2.95 percent
: 5. Any contracts upon which the licensee is relying pursuant to 10 CFR 50.75(e)(1 )(v).
NONE
: 6. Any modifications to a licensee's current method providing financial assurance occurring since the last submitted report.
NONE
: 7. Any material changes to trust agreements.
NONE
: 8. California Public Utilities Commission (CPUC) Submittal in 2011 dollars in millions:
Total Project (Decommission 2011)                                  $559.9 Scope Excluded from NRC calculations                             $ 2.0 Scope of ISFSI from Licensing to Decommissioning in 2020         $109.3 Scope Decommissioned and disbursed from Trust(s)                 $127.0 Total NRC Decommissioning Remaining Scope                          $317.6

Enclosure 2 PG&E Letter HBL-11-003
* 2011 Decommissioning Estimate (1 page)
* Composite Escalation (1 page)
* Development of B Component (1 page)
* Development of E Component (7 pages)
* Development of L Component (7 pages)

Enclosure 2 PG&E Letter HBL-11-003 2011 Decommissioning Estimate Nuclear Regulatory Commission Estimate of Decommission Costs for Boiling Water Reactor (BWR) in 2011 HBPP BWR
($ in Millions)
January 1986 Estimate $114.8 Escalated to 1999       $128.9     (Table 2.1 in NUREG 1307, Revision 12, has no value for 1999 Burial)
Escalated to 2000       $400.2     ($360.9 in 2000 Submittal)
Escalated to 2001       $354.1     ($425.3 in 2001 Submittal)
Escalated to 2002       $357.4     ($445.6 in 2002 Submittal)
Escalated to 2003       $373.8     ($430.1 in 2003 Submittal)
Escalated to 2004       $388.0     ($439.6 in 2004 Submittal)
Escalated to 2005       $416.8     ($453.2 in 2005 Submittal)
Escalated to 2006       $519.2     ($494.3 in 2006 Submittal)
Escalated to 2007       $549.8     ($548.6 in 2007 Submittal)
Escalated to 2008       $565.6     ($590.9 in 2008 Submittal)
Escalated to 2009       $574.4     ($573.8 in 2009 Submittal)
Escalated to 2010       $596.8     ($596.6 in 2010 Submittal)
Escalated to 2011       $619.0 January 1986: based on 10 CFR 50.75(c) Table of Minimum Amounts.
BWR based on minimum 1200 MWt = ($104 + (.009xMWt>> million per unit where BWR less than 1200 MWt use P=1200 MWt, HBPP 220 MWt

Enclosure 2 PG&E Letter HBL-11-003 Composite Escalation Calculating Overall Escalation Rate BWR           Jan-86       Jan-99       Jan-OO      Jan-01     Jan-02      Jan-03      Jan-04      Jan-05     Jan-06     Jan-07  Jan-08  Jan-09  Jan-10   Jan-11 Weight (1 )
L (Labor)                  1.0000       1.5624      1.6370     0.9365      0.9733      1.0122      1.0612     1.0958     2.0724  2.1465  2.2207  2.2639   2.2928   2.3299    0.65 E (Energy)                 1.0000       0.8257      1.0220     1.1841      0.9715      1.2003      1.2131     1.4810     1.8656  1.8226  2.3961  1.7963   2.1190   2.3659    0.13 B (Burial)                 1.0000       0.0000    10.4061    10.5540     10.7015      11.0993     11.5119    12.3889    13.3331 14.3491 14.4164 14.9931  15.6028  16.2269    0.22 (1) From NUREG-1307, Revision 14, Report on Waste Burial Charges, Section 2 Summary, Page 3 ... where A, B, and C are the fractions of the total 1986 dollar costs that are attributable to labor (0.65), energy (0.13), and burial (0.22), respectively, and sum to 1.0.
(2) Jan-01, Jan-03, Jan-05, Jan-07, and Jan-08 B (Burial) value in this table see calculation notes in Development of B Component spreadsheet BWR Combined Escalation Rate for:
Jan-86       Jan-99      Jan-OO       Jan-01     Jan-02      Jan-03      Jan-04      Jan-05     Jan-06     Jan-07  Jan-08  Jan-09  Jan-10   Jan-11 1.0000      1.1229      3.4862       3.0846     3.1133      3.2558      3.3801      3.6303     4.5229     4.7890  4.9265  5.0035  5.1984   5.3919

Development of B Component                                        Enclosure 2 PG&E Letter HBL-11-003 Development of Burial Escalation Developed from NUREG-1307, Revision 14 Table 2.1 "VALUES OF B SUB-X AS A FUNCTION OF LLW BURIAL SITE, WASTE VENDOR, AND YEAR" (Summary for non-Atlantic Compact).
Revised to Bx Values for Generic LLW Disposal Site (Assumed to be same as that provided for the Atlantic Compact for lack of a better alternative at this time).
BWR                             BWR Burial Costs                    Restated to (South Carolina}                  1986 = 100 1986               1.561                             1.0000 1987 1988               1.831                             1.1730 1989 1990 1991               2.361                             1.5125 1992 1993               9.434                             6.0436 1994               9.794                             6.2742 1995               10.42                             6.6752 1996              10.379                             6.6489 1997              13.837                             8.8642 1998              13.948                             8.9353 1999                                                 0.0000 2000              16.244                           10.4061 2001              16.474                           10.5535 2002              16.705                           10.7015 2003              17.326                           11.0993 2004              17.970                           11.5119 2005              19.339                           12.3889 2006              20.813                           13.3331 2007              22.399                           14.3491 2008              25.231                           16.1634 2009              26.240                           16.8099 2010              27.292                           17.4837 2011              28.384                           18.1830 Table 2.1 Note ('c) From 7/1/95 through 6/30/2000 access was allowed for all states except North Carolina. Effective 7/1/2000 rates are based on whether a waste generator is or is not a member of the Atlantic Compact.
2001 has no information in NUREG-1307 Rev 12. 2001 is an estimate that is calculated by applying the average percent change between 2000 and 2002, and adding to the 2000 base 2003 has no information in NUREG-1307 Rev 12. 2003 is an estimate that is calculated by applying the average percent change between 2002 and 2004, and adding to the 2002 base 2005 has no information in NUREG-1307 Rev 12. 2005 is an estimate that is calculated by applying the average percent change between 2004 and 2006, and adding to the 2004 base.
2007 has no information in NUREG-1307 Rev 12. 2007 is an estimate that is calculated by applying the average percent change between 2004 and 2006, and adding to the 2006 base.
2008 has no information in NUREG-1307 Rev 12. 2008 is an estimate that is calculated by applying the average percent change between 2004 and 2006, and adding to the 2007 base.
2009 has no information in NUREG-1307 Rev 13. 2009 is an estimate that is calculated by applying the average percent change between 2006 and 2008, and adding to the 2008 base.
2010 has no information in NUREG-1307 Rev 13. 2010 is an estimate that is calculated by applying the average percent change between 2006 and 2008, and adding to the 2008 base 2011 is an estimate that is calculated by applying the historical estimated escallation of 1.04 percent of previous year and adding to the 2010 base

Enclosure 2 PG&E Letter HBL-11-003 Page 1 of 7 Development of E Component Calculation of Energy Escalation Factor - Reference NUREG-1307, Revision 14, Section 3.2 Using Regional Indices SERIES ID: WPU0573 Light Fuel Oils (as of 03/06/09) and WPU0543 Industrial Electric Power (as of 03/06/09)
REBASED TO 1986 = 100 PPI for Fuels &                 PPI for Light                    PPI for Fuels &                  PPI for Light         Energy Escalation Related Products                Fuel Oils                        Related Products                 Fuel Oils              Factor (E)
(1982 = 100)                    (1982=100)                       (1986 = 100)                     (1986=100)            forBWR (P) =Industrial Energy Power    (F) = Light Fuel Oils            (P) =Industrial Energy Power     (F) = Light Fuel Oils (Humboldt)
BWR wt= 0.54                     BWR wt = 0.46 Jan-86                   114.2                            82.0                           1.0000                           1.0000               1.0000 Feb-86                   115.0                            62.4                           1.0070                           0.7610               0.8938 Mar-86                   114.4                            51.3                           1.0018                           0.6256               0.8287 Apr-86                   113.7                            49.8                           0.9956                           0.6073               0.8170 May-86                   114.1                            47.0                           0.9991                           0.5732               0.8032 Jun-86                   115.3                            44.7                           1.0096                           0.5451               0.7960 Jul-86                  116.2                            36.4                           1.0175                           0.4439               0.7537 Aug-86                   116.3                            40.1                           1.0184                           0.4890               0.7749 Sep-86                   116.3                            46.3                           1.0184                           0.5646               0.8097 Oct-86                   113.0                            43.1                           0.9895                           0.5256               0.7761 Nov-86                   112.7                            43.5                           0.9869                           0.5305               0.7769 Dec-86                   112.3                            45.6                           0.9834                           0.5561               0.7868 Jan-87                   110.3                             51.4                          0.9658                           0.6268               0.8099 Feb-87                   109.8                            53.1                           0.9615                           0.6476               0.8171 Mar-87                   110.2                            49.7                           0.9650                           0.6061               0.7999 Apr-87                   109.9                             52.0                          0.9623                           0.6341               0.8114 May-87                   111.8                             53.3                          0.9790                           0.6500               0.8277 Jun-87                   113.9                            55.1                           0.9974                           0.6720               0.8477 Jul-87                  116.2                             56.3                          1.0175                           0.6866               0.8653 Aug-87                   115.7                             59.4                          1.0131                           0.7244               0.8803 Sep-87                   115.5                             56.8                          1.0114                           0.6927               0.8648 Oct-87                   111.0                             59.3                          0.9720                           0.7232               0.8575 Nov-87                   109.2                             61.2                          0.9562                           0.7463               0.8597 Dec-87                   109.6                             58.1                          0.9597                           0.7085               0.8442 Jan-88                   108.8                             54.8                          0.9527                           0.6683               0.8219 Feb-88                   109.0                             51.5                          0.9545                           0.6280               0.8043 Mar-88                   109.0                             49.7                          0.9545                           0.6061               0.7942 Apr-88                   109.1                             53.3                          0.9553                           0.6500               0.8149 May-88                   108.9                             54.3                          0.9536                           0.6622               0.8195 Jun-88                   117.2                             50.6                          1.0263                           0.6171               0.8380 Jul-88                  118.2                             46.9                          1.0350                           0.5720               0.8220 Aug-88                   118.3                            46.8                           1.0359                           0.5707               0.8219 Sep-88                   118.5                            45.9                           1.0377                           0.5598               0.8178 Oct-88                   114.2                            42.3                           1.0000                           0.5159               0.7773 Nov-88                   109.2                            47.2                           0.9562                           0.5756               0.7811 Dec-88                   110.5                             50.6                          0.9676                           0.6171               0.8064 Jan-89                   112.0                             54.9                          0.9807                           0.6695               0.8376 Feb-89                   112.0                            54.0                           0.9807                           0.6585               0.8325 Mar-89                   112.3                             57.3                          0.9834                           0.6988               0.8525 Apr-89                   112.4                             61.5                          0.9842                           0.7500               0.8765 May-89                   113.6                             57.5                          0.9947                           0.7012               0.8597 Jun-89                   119.8                             53.3                          1.0490                           0.6500               0.8655 Jul-89                  122.2                             52.7                          1.0701                           0.6427               0.8735 Aug-89                   122.4                             53.5                          1.0718                           0.6524               0.8789 Sep-89                   122.5                            59.3                           1.0727                           0.7232               0.9119 Oct-89                   117.2                             64.0                          1.0263                           0.7805               0.9132 Nov-89                   113.5                             64.4                          0.9939                           0.7854               0.8980 Dec-89                   114.2                            68.1                           1.0000                           0.8305               0.9220 Jan-90                   114.9                            85.3                           1.0061                           1.0402               1.0218 Feb-90                   115.0                             59.4                          1.0070                           0.7244               0.8770 Mar-90                   115.4                            60.4                           1.0105                           0.7366               0.8845

Enclosure 2 PG&E Letter HBL-11-003 Page 2 of?
Development of E Component Calculation of Energy Escalation Factor - Reference NUREG-1307, Revision 14, Section 3.2 Using Regional Indices SERIES ID: WPU0573 Light Fuel Oils (as of 03/06/09) and WPU0543 Industrial Electric Power (as of 03/06/09)
REBASED TO 1986 = 100 PPI for Fuels &                 PPI for Light                    PPI for Fuels &                  PPI for Light         Energy Escalation Related Products                Fuel Oils                        Related Products                 Fuel Oils              Factor (E)
(1982 = 100)                    (1982=100)                       (1986 = 100)                     (1986=100)            forBWR (P) =Industrial Energy Power    (F) = Light Fuel Oils            (P) =Industrial Energy Power     (F) = Light Fuel Oils (Humboldt)
BWR wt = 0.54                    BWR wt= 0.46 Apr-90                   115.1                            61.0                           1.0079                           0.7439               0.8865 May-90                   117.0                            58.4                           1.0245                           0.7122               0.8808 Jun-90                   123.9                            53.0                           1.0849                           0.6463               0.8832 Jul-90                  124.4                            51.6                           1.0893                           0.6293               0.8777 Aug-90                   124.6                            72.3                           1.0911                           0.8817               0.9948 Sep-90                   125.0                            87.3                           1.0946                           1.0646               1.0808 Oct-90                   121.2                           104.8                           1.0613                           1.2780               1.1610 Nov-90                   120.2                            98.9                           1.0525                           1.2061               1.1232 Dec-90                   118.9                            89.3                           1.0412                           1.0890               1.0632 Jan-91                   124.2                            82.9                           1.0876                           1.0110               1.0523 Feb-91                   124.3                             74.3                          1.0884                           0.9061               1.0046 Mar-91                   124.3                             61.6                          1.0884                           0.7512               0.9333 Apr-91                   124.7                            60.0                           1.0919                           0.7317               0.9262 May-91                   128.2                            59.6                           1.1226                           0.7268               0.9405 Jun-91                   132.6                             57.6                          1.1611                           0.7024               0.9501 Jul-91                  134.5                             58.1                          1.1778                           0.7085               0.9619 Aug-91                   133.8                             62.1                          1.1716                           0.7573               0.9810 Sep-91                   133.8                            65.4                           1.1716                           0.7976               0.9996 Oct-91                   128.3                             67.6                          1.1235                           0.8244               0.9859 Nov-91                   123.1                             71.0                          1.0779                           0.8659               0.9804 Dec-91                   125.1                             62.2                          1.0954                           0.7585               0.9405 Jan-92                   125.9                            54.4                           1.1025                           0.6634               0.9005 Feb-92                   125.3                             57.3                          1.0972                           0.6988               0.9139 Mar-92                   125.8                             56.0                          1.1016                           0.6829               0.9090 Apr-92                   124.8                             59.0                          1.0928                           0.7195               0.9211 May-92                   128.5                             62.1                          1.1252                           0.7573               0.9560 Jun-92                   134.8                             65.4                          1.1804                           0.7976                1.0043 Jul-92                  135.6                             64.6                          1.1874                           0.7878                1.0036 Aug-92                   135.1                             63.3                          1.1830                           0.7720               0.9939 Sep-92                   135.9                             65.6                          1.1900                           0.8000               1.0106 Oct-92                   131.2                             68.2                          1.1489                           0.8317                1.0030 Nov-92                   125.5                             64.2                          1.0989                           0.7829               0.9536 Dec-92                   126.7                             59.4                          1.1095                           0.7244               0.9323 Jan-93                   127.1                             59.0                          1.1130                           0.7195               0.9320 Feb-93                   126.4                             60.4                          1.1068                           0.7366               0.9365 Mar-93                   126.7                             63.2                          1.1095                           0.7707               0.9536 Apr-93                   126.8                             62.4                          1.1103                           0.7610               0.9496 May-93                   127.5                             62.6                          1.1165                           0.7634               0.9541 Jun-93                   136.9                             60.8                          1.1988                           0.7415               0.9884 Jul-93                  137.1                             57.0                          1.2005                           0.6951               0.9680 Aug-93                   137.2                             54.4                          1.2014                           0.6634               0.9539 Sep-93                   137.6                             59.3                          1.2049                           0.7232               0.9833 Oct-93                   131.9                             65.4                          1.1550                           0.7976               0.9906 Nov-93                   126.3                             61.6                          1.1060                           0.7512               0.9428 Dec-93                   126.0                             51.4                          1.1033                           0.6268               0.8841 Jan-94                   126.2                             51.5                          1.1051                           0.6280               0.8856 Feb-94                   125.9                             57.5                          1.1025                           0.7012               0.9179 Mar-94                   125.8                             56.2                          1.1016                           0.6854               0.9101 Apr-94                   125.4                             54.7                          1.0981                           0.6671               0.8998 May-94                   126.0                             54.7                          1.1033                           0.6671               0.9027 Jun-94                   133.5                             54.1                          1.1690                           0.6598               0.9347

Enclosure 2 PG&E Letter HBL-11-003 Page 3 of?
Development of E Component Calculation of Energy Escalation Factor - Reference NUREG-1307, Revision 14, Section 3.2 Using Regional Indices SERIES 10: WPU0573 Light Fuel Oils (as of 03/06/09) and WPU0543 Industrial Electric Power (as of 03/06/09)
REBASEO TO 1986 = 100 PPI for Fuels &                 PPI for Light                    PPI for Fuels &                  PPI for Light         Energy Escalation Related Products                Fuel Oils                        Related Products                 Fuel Oils              Factor (E)
(1982 = 100)                    (1982=100)                       (1986 = 100)                     (1986=100)            forBWR (P) =Industrial Energy Power    (F) = Light Fuel Oils            (P) =Industrial Energy Power     (F) = Light Fuel Oils (Humboldt)
BWR wt= 0.54                     BWR wt= 0.46 Jul-94                  134.5                            56.3                           1.1778                           0.6866               0.9518 Aug-94                   134.5                            57.5                           1.1778                           0.7012               0.9586 Sep-94                   134.9                            57.7                           1.1813                           0.7037               0.9616 Oct-94                   129.1                            57.7                           1.1305                           0.7037               0.9341 Nov-94                   127.0                            58.8                           1.1121                           0.7171               0.9304 Oec-94                   127.4                            54.7                           1.1156                           0.6671               0.9093 Jan-95                   127.6                            54.7                           1.1173                           0.6671               0.9102 Feb-95                   128.0                            53.3                           1.1208                           0.6500               0.9043 Mar-95                   128.3                            54.3                           1.1235                           0.6622               0.9113 Apr-95                   126.4                            57.1                           1.1068                           0.6963               0.9180 May-95                   130.2                            59.1                           1.1401                           0.7207               0.9472 Jun-95                   135.3                            55.8                           1.1848                           0.6805               0.9528 Jul-95                  136.6                            53.5                           1.1961                           0.6524               0.9460 Aug-95                   136.5                            55.6                           1.1953                           0.6780               0.9573 Sep-95                   133.7                             58.2                          1.1708                           0.7098               0.9587 Oct-95                   131.4                             57.8                          1.1506                           0.7049               0.9456 Nov-95                   127.6                            59.5                           1.1173                           0.7256               0.9371 Oec-95                   127.7                            60.6                           1.1182                           0.7390               0.9438 Jan-96                   127.9                             62.6                          1.1200                           0.7634               0.9560 Feb-96                   127.1                             59.7                          1.1130                           0.7280               0.9359 Mar-96                   127.8                             63.5                          1.1191                           0.7744               0.9605 Apr-96                   129.1                             74.7                          1.1305                           0.9110               1.0295 May-96                   135.0                             72.0                          1.1821                           0.8780               1.0423 Jun-96                   137.5                             62.8                          1.2040                           0.7659               1.0025 Jul-96                  136.0                             64.3                          1.1909                           0.7841               1.0038 Aug-96                   136.2                            66.5                           1.1926                           0.8110               1.0171 Sep-96                   136.2                             73.4                          1.1926                           0.8951               1.0558 Oct-96                   131.2                             79.7                          1.1489                           0.9720               1.0675 Nov-96                   127.1                             76.5                          1.1130                           0.9329               1.0301 Oec-96                   127.7                             76.1                          1.1182                           0.9280               1.0307 Jan-97                   128.3                             73.7                          1.1235                           0.8988               1.0201 Feb-97                   128.1                             72.3                          1.1217                           0.8817               1.0113 Mar-97                   128.2                             65.2                          1.1226                           0.7951               0.9720 Apr-97                   127.3                             65.3                          1.1147                           0.7963               0.9683 May-97                   129.7                             64.2                          1.1357                           0.7829               0.9734 Jun-97                   135.1                             60.8                          1.1830                           0.7415               0.9799 Jul-97                  135.9                             57.8                          1.1900                           0.7049               0.9669 Aug-97                   134.7                             61.5                          1.1795                           0.7500               0.9819 Sep-97                   136.0                             60.4                          1.1909                           0.7366               0.9819 Oct-97                   130.1                             64.8                          1.1392                           0.7902               0.9787 Nov-97                   127.9                             65.8                          1.1200                           0.8024               0.9739 Oec-97                   128.3                             59.4                          1.1235                           0.7244               0.9399 Jan-98                   127.4                             54.1                          1.1156                           0.6598               0.9059 Feb-98                   127.2                             52.0                          1.1138                           0.6341               0.8932 Mar-98                   126.7                            48.3                           1.1095                           0.5890               0.8701 Apr-98                   126.4                             50.2                          1.1068                           0.6122               0.8793 May-98                   129.2                             50.0                          1.1313                           0.6098               0.8914 Jun-98                   133.8                            46.3                           1.1716                           0.5646               0.8924 Jul-98                  134.8                            45.0                           1.1804                           0.5488               0.8898 Aug-98                   135.2                             44.0                          1.1839                           0.5366               0.8861 Sep-98                   135.2                            48.3                           1.1839                           0.5890               0.9103

Enclosure 2 PG&E Letter HBL-11-003 Page 4 of?
Development of E Component Calculation of Energy Escalation Factor - Reference NUREG-1307, Revision 14, Section 3.2 Using Regional Indices SERIES ID: WPU0573 Light Fuel Oils (as of 03/06/09) and WPU0543 Industrial Electric Power (as of 03/06/09)
REBASED TO 1986 = 100 PPI for Fuels &                 PPI for Light                    PPI for Fuels &                  PPI for Light         Energy Escalation Related Products                Fuel Oils                        Related Products                 Fuel Oils              Factor (E)
(1982 = 100)                    (1982=100)                       (1986 = 100)                     (1986=100)            forBWR (P) =Industrial Energy Power    (F) = Light Fuel Oils            (P) =Industrial Energy Power     (F) = Light Fuel Oils (Humboldt)
BWR wt= 0.54                     BWR wt= 0.46 Oct-98                   130.4                            47.4                           1.1419                           0.5780               0.8825 Nov-98                   127.6                            46.2                           1.1173                           0.5634               0.8625 Dec-98                   126.6                            38.8                           1.1086                           0.4732               0.8163 Jan-99                   126.1                            40.9                           1.1042                           0.4988               0.8257 Feb-99                   125.5                            38.2                           1.0989                           0.4659               0.8077 Mar-99                   125.5                            42.8                           1.0989                           0.5220               0.8335 Apr-99                   125.2                            52.5                           1.0963                           0.6402               0.8865 May-99                   127.4                            52.6                           1.1156                           0.6415               0.8975 Jun-99                   131.0                            52.4                           1.1471                           0.6390               0.9134 Jul-99                  133.9                            58.7                           1.1725                           0.7159               0.9624 Aug-99                   133.9                               63                          1.1725                           0.7683               0.9866 Sep-99                   134.1                            67.6                           1.1743                           0.8244               1.0133 Oct-99                   129.5                            65.5                           1.1340                           0.7988               0.9798 Nov-99                   127.5                            71.3                           1.1165                           0.8695               1.0029 Dec-99                   126.5                             72.9                          1.1077                           0.8890               1.0071 Jan-OO                   126.8                             75.3                          1.1103                           0.9183               1.0220 Feb-OO                   126.7                             87.9                          1.1095                           1.0720               1.0922 Mar-OO                   126.7                            89.7                           1.1095                           1.0939               1.1023 Apr-OO                   126.8                             83.1                          1.1103                           1.0134                1.0658 May-OO                   128.6                             82.9                          1.1261                           1.0110               1.0731 Jun-OO                   133.6                             86.2                          1.1699                           1.0512               1.1153 Jul-OO                  136.2                            88.7                           1.1926                           1.0817               1.1416 Aug-OO                   137.4                             91.6                          1.2032                           1.1171                1.1636 Sep-OO                   137.8                           110.1                           1.2067                           1.3427                1.2692 Oct-OO                   134.1                           108.6                           1.1743                           1.3244                1.2433 Nov-OO                   130.9                           108.4                           1.1462                           1.3220               1.2271 Dec-OO                   132.7                           100.6                           1.1620                           1.2268                1.1918 Jan-01                   136.4                             96.1                          1.1944                           1.1720                1.1841 Feb-01                   136.4                             91.6                          1.1944                           1.1171               1.1588 Mar-01                   136.5                             83.1                          1.1953                           1.0134               1.1116 Apr-01                   135.1                             86.2                          1.1830                           1.0512                1.1224 May-01                   136.2                             94.2                          1.1926                           1.1488                1.1725 Jun-01                   148.4                             90.2                          1.2995                           1.1000                1.2077 Jul-01                  149.5                             81.3                          1.3091                           0.9915                1.1630 Aug-01                   148.9                             83.2                          1.3039                           1.0146                1.1708 Sep-01                   148.2                               93                          1.2977                           1.1341                1.2225 Oct-01                   143.8                             76.8                          1.2592                           0.9366                1.1108 Nov-01                   137.3                             70.5                          1.2023                           0.8598               1.0447 Dec-01                   136.9                             56.6                          1.1988                           0.6902               0.9649 Jan-02                   136.3                             58.3                          1.1935                           0.7110               0.9715 Feb-02                   135.4                             59.6                          1.1856                           0.7268               0.9746 Mar-02                   135.7                             69.1                          1.1883                           0.8427                1.0293 Apr-02                  135.4                             76.4                          1.1856                           0.9317                1.0688 May-02                   137.9                               75                          1.2075                           0.9146                1.0728 Jun-02                   143.6                             71.4                          1.2574                           0.8707                1.0796 Jul-02                  144.9                             75.5                          1.2688                           0.9207                1.1087 Aug-02                   145.0                             77.9                          1.2697                           0.9500                1.1226 Sep-02                   145.8                             89.5                          1.2767                           1.0915                1.1915 Oct-02                   140.0                             95.1                          1.2259                           1.1598                1.1955 Nov-02                   139.5                             82.8                          1.2215                           1.0098                1.1241 Dec-02                   139.6                             84.6                          1.2224                           1.0317                1.1347

Enclosure 2 PG&E Letter HBL-11-003 Page 5 of?
Development of E Component Calculation of Energy Escalation Factor - Reference NUREG-1307, Revision 14, Section 3.2 Using Regional Indices SERIES ID: WPU0573 Light Fuel Oils (as of 03/06/09) and WPU0543 Industrial Electric Power (as of 03/06/09)
REBASED TO 1986 = 100 PPI for Fuels &                 PPI for Light                    PPI for Fuels &                  PPI for Light         Energy Escalation Related Products                Fuel Oils                        Related Products                 Fuel Oils              Factor (E)
(1982 = 100)                    (1982=100)                       (1986 = 100)                     (1986=100)            forBWR (P) =Industrial Energy Power    (F) = Light Fuel Oils            (P) =Industrial Energy Power     (F) = Light Fuel Oils (Humboldt)
BWR wt= 0.54                     BWR wt= 0.46 Jan-03                   140.3                            95.7                           1.2285                           1.1671               1.2003 Feb-03                   140.6                           120.4                           1.2312                           1.4683               1.3402 Mar-03                   143.3                           128.9                           1.2548                           1.5720               1.4007 Apr-03                   144.3                            98.3                           1.2636                           1.1988               1.2338 May-03                   145.1                            85.5                           1.2706                           1.0427               1.1657 Jun-03                   148.3                            87.2                           1.2986                           1.0634               1.1904 Jul-03                  151.6                            90.1                           1.3275                           1.0988               1.2223 Aug-03                   151.3                            94.1                           1.3249                           1.1476               1.2433 Sep-03                   152.0                            88.2                           1.3310                           1.0756               1.2135 Oct-03                   147.4                            97.8                           1.2907                           1.1927               1.2456 Nov-03                   142.7                            93.0                           1.2496                           1.1341               1.1965 Dec-03                   142.9                            95.8                           1.2513                           1.1683               1.2131 Jan-04                   143.1                           106.8                           1.2531                           1.3024               1.2758 Feb-04                   143.1                           100.8                           1.2531                           1.2293               1.2421 Mar-04                   143.1                           107.8                           1.2531                           1.3146               1.2814 Apr-04                   143.1                           115.2                           1.2531                           1.4049               1.3229 May-04                   144.2                             116                           1.2627                          '1.4146               1.3326 Jun-04                   152.4                           111.5                           1.3345                           1.3598               1.3461 Jul-04                  152.2                           119.3                           1.3327                           1.4549               1.3889 Aug-04                   154.0                           131.1                           1.3485                           1.5988               1.4636 Sep-04                   154.0                           136.8                           1.3485                           1.6683               1.4956 Oct-04                   145.8                           161.7                           1.2767                           1.9720               1.5965 Nov-04                   144.9                           153.6                           1.2688                           1.8732               1.5468 Dec-04                   146.2                           133.8                           1.2802                           1.6317               1.4419 Jan-05                   148.9                           138.5                           1.3039                           1.6890               1.4810 Feb-05                   148.0                             146                           1.2960                           1.7805               1.5188 Mar-05                   148.1                           169.4                           1.2968                           2.0659               1.6506 Apr-05                   148.7                           170.9                           1.3021                           2.0841               1.6618 May-05                   151.1                           165.3                           1.3231                           2.0159               1.6418 Jun-05                   159.7                           180.6                           1.3984                           2.2024               1.7683 Jul-05                  162.1                           186.2                           1.4194                           2.2707               1.8110 Aug-05                   162.5                           194.5                           1.4229                           2.3720               1.8595 Sep-05                   162.8                           209.9                           1.4256                           2.5598               1.9473 Oct-05                   159.5                           252.0                           1.3967                           3.0732               2.1679 Nov-05                   161.1                           199.1                           1.4107                           2.4280               1.8787 Dec-05                   161.4                           193.6                           1.4133                           2.3610               1.8492 Jan-06                   167.0                           191.8                           1.4623                           2.3390               1.8656 Feb-06                   168.6                           190.0                           1.4764                           2.3171               1.8631 Mar-06                   167.4                           199.2                           1.4658                           2.4293               1.9090 Apr-06                   169.6                           221.9                           1.4851                           2.7061               2.0468 May-06                   170.8                           231.4                           1.4956                           2.8220               2.1057 Jun-06                   181.2                           238.1                           1.5867                           2.9037               2.1925 Jul-06                  181.9                           231.6                           1.5928                           2.8244               2.1593 Aug-06                   180.2                           241.4                           1.5779                           2.9439               2.2063 Sep-06                   181.0                           203.1                           1.5849                           2.4768               1.9952 Oct-06                   171.2                           198.1                           1.4991                           2.4159               1.9208 Nov-06                   167.2                           198.2                           1.4641                           2.4171               1.9025 Dec-06                   167.8                           200.4                           1.4694                           2.4439               1.9176 Jan-07                   171.9                           180.0                           1.5053                           2.1951               1.8226 Feb-07                   175.7                           191.5                           1.5385                           2.3354               1.9051 Mar-07                   172.1                           215.1                           1.5070                           2.6232               2.0204

Enclosure 2 PG&E Letter HBL-11-003 Page 6 of7 Development of E Component Calculation of Energy Escalation Factor - Reference NUREG-1307, Revision 14, Section 3.2 Using Regional Indices SERIES 10: WPU0573 Light Fuel Oils (as of 03/06/09) and WPU0543 Industrial Electric Power (as of 03/06/09)
REBASED TO 1986 = 100 PPI for Fuels &                 PPI for Light                    PPI for Fuels &                  PPI for Light         Energy Escalation Related Products                Fuel Oils                        Related Products                 Fuel Oils              Factor (E)
(1982 = 100)                    (1982=100)                       (1986 = 100)                     (1986=100)            forBWR (P) =Industrial Energy Power    (F) = Light Fuel Oils            (P) =Industrial Energy Power     (F) = Light Fuel Oils (Humboldt)
BWR wt= 0.54                     BWR wt = 0.46 Apr-07                   173.1                           231.8                           1.5158                           2.8268               2.1189 May-07                    179.2                           225.3                           1.5692                           2.7476               2.1112 Jun-07                   186.7                           222.4                           1.6349                           2.7122               2.1304 Jul-07                  187.0                           237.8                           1.6375                           2.9000               2.2182 Aug-07                   187.6                           225.5                           1.6427                           2.7500               2.1521 Sep-07                   188.4                           238.9                           1.6497                           2.9134               2.2310 Oct-07                   182.7                           243.3                           1.5998                           2.9671               2.2288 Nov-07                   180.3                           288.2                           1.5788                           3.5146               2.4693 Dec-07                   180.0                           266.7                           1.5762                           3.2524               2.3473 Jan-08                   181.9                           273.8                           1.5928                           3.3390               2.3961 Feb-08                   180.0                           280.2                           1.5762                           3.4171               2.4230 Mar-08                   183.1                           339.6                           1.6033                           4.1415               2.7709 Apr-08                   185.2                           352.5                           1.6217                           4.2988               2.8532 May-08                    189.5                           384.9                           1.6594                           4.6939               3.0553 Jun-08                   191.9                           410.5                           1.6804                           5.0061               3.2102 Jul-08                  196.1                           423.8                           1.7172                           5.1683               3.3047 Aug-08                   197.1                           343.9                           1.7259                           4.1939               2.8612 Sep-08                   195.9                           335.1                           1.7154                           4.0866               2.8062 Oct-08                   193.0                           279.0                           1.6900                           3.4024               2.4777 Nov-08                   187.7                           218.2                           1.6436                           2.6610               2.1116 Dec-08                   188.3                           163.0                           1.6489                           1.9878               1.8048 Jan-09                   190.3                           159.8                           1.6664                           1.9488               1.7963 Feb-09                   190.3                           145.6                           1.6664                           1.7756               1.7166 Mar-09                   187.6                           136.8                           1.6427                           1.6683               1.6545 Apr-09                   186.9                           159.9                           1.6366                           1.9500               1.7808 May-09                    190.5                           158.6                           1.6681                           1.9341               1.7905 Jun-09                   193.3                           183.7                           1.6926                           2.2402               1.9445 Jul-09                  196.2                           165.2                           1.7180                           2.0146               1.8545 Aug-09                   194.7                           196.1                           1.7049                           2.3915               2.0207 Sep-09                   194.9                           186.6                           1.7067                           2.2756               1.9684 Oct-09                   189.9                           193.3                           1.6629                           2.3573               1.9823 Nov-09                   186.0                           207.8                           1.6287                           2.5341               2.0452 Dec-09                   186.0                           197.5                           1.6287                           2.4085               1.9874 Jan-10                   186.3                           220.7                           1.6313                           2.6915               2.1190 Feb-10                   186.1                           200.2                           1.6296                           2.4415               2.0031 Mar-10                   189.0                           217.0                           1.6550                           2.6463               2.1110 Apr-10                   188.8                           231.5                           1.6532                           2.8232               2.1914 May-10                   192.0                           226.0                           1.6813                           2.7561               2.1757 Jun-10                   197.8                           212.4                           1.7320                           2.5902               2.1268 Jul-10                  199.8                           209.3                           1.7496                           2.5524               2.1189 Aug-10                   200.8                           221.4                           1.7583                           2.7000               2.1915 Sep-10                   200.0                           220.0                           1.7513                           2.6829               2.1799 Oct-10                   194.7                           236.0                           1.7049                           2.8780               2.2446 Nov-10                   192.9                           245.5                           1.6891                           2.9939               2.2893 Dec-10                   191.3                           252.1                           1.6751                           3.0744               2.3188 Jan-11                   191.9                           260.0                           1.6804                           3.1707               2.3659

Enclosure 2 PG&E Letter HBL-11-003 Page? of?
Development of E Component Calculation of Energy Escalation Factor - Reference NUREG-1307, Revision 14, Section 3.2 Using Regional Indices SERIES ID: WPU0573 Light Fuel Oils (as of 03/06/09) and WPU0543 Industrial Electric Power (as of 03/06/09)
REBASED TO 1986 = 100 PPI for Fuels &                 PPI for Light                    PPI for Fuels &                  PPI for Light         Energy Escalation Related Products                 Fuel Oils                        Related Products                 Fuel Oils              Factor (E)
(1982 = 100)                     (1982=100)                       (1986 = 100)                     (1986=100)            forBWR (P) =Industrial Energy Power     (F) = Light Fuel Oils            (P) =Industrial Energy Power     (F) = Light Fuel Oils (Humboldt)
BWR wt = 0.54                    BWR wt = 0.46 Oct 10 through Jan 11 are Preliminary Values from PPllndices

Enclosure 2 PG&E Letter HBL-11-003 Page 1 of 7 Development of L Component Calculation of Labor Escalation Factor - Reference NUREG-1307, Revision 14, Section 3.1 Using Regional Indices SERIES ID: CIU20100000002401 (as of 03/06/09)
Jan '86 adjusted to reflect NUREG 1307, Revision 14, Scaling Factorfor West Labor (Pg 7)
Note 1: The Base Labor factor was reindexed in December 2005, at which time the index was reset to 100.
Employment Cost Indust West Region               Labor Private Industry         Escalation (1989=100)              Factor Jan-86                     89.8              1.00000 Feb-86 Mar-86 Apr-86                     90.8              1.01114 May-86 Jun-86 Jul-86                    91.2              1.01559 Aug-86 Sep-86 Oct-86                     91.6              1.02004 Nov-86 Dec-86 Jan-87                     92.5              1.03007 Feb-87 Mar-87 Apr-87                     92.6              1.03118 May-87 Jun-87 Jul-87                    93.7              1.04343 Aug-87 Sep-87 Oct-87                     94.1              1.04788 Nov-87 Dec-87 Jan-88                     95.4              1.06236 Feb-88 Mar-88 Apr-88                     96.3             1.07238 May-88 Jun-88 Jul-88                      97             1.08018 Aug-88 Sep-88 Oct-88                     97.7             1.08797 Nov-88 Dec-88 Jan-89                     98.8             1.10022 Feb-89 Mar-89 Apr-89                      100             1.11359 May-89 Jun-89 Jul-89                     101             1.12472 Aug-89 Sep-89 Oct-89                    101.8             1.13363 Nov-89 Dec-89

Enclosure 2 PG&E Letter HBL-11-003 Page 2 of 7 Development of L Component Calculation of Labor Escalation Factor - Reference NUREG-1307, Revision 14, Section 3.1 Using Regional Indices SERIES 10: CIU20100000002401 (as of 03/06/09)
Jan '86 adjusted to reflect NUREG 1307, Revision 14, Scaling Factor for West Labor (Pg 7)
Note 1: The Base Labor factor was reindexed in December 2005, at which time the index was reset to 100.
Employment Cost Indust West Region               Labor Private Industry         Escalation (1989=100)              Factor Jan-90                    103.3              1.15033 Feb-90 Mar-90 Apr-90                    104.5              1.16370 May-90 Jun-90 Jul-90                   105.6              1.17595 Aug-90 Sep-90 Oct-90                    106.3              1.18374 Nov-90 Dec-90 Jan-91                    107.5              1.19710 Feb-91 Mar-91 Apr-91                    108.9              1.21269 May-91 Jun-91 Jul-91                     110              1.22494 Aug-91 Sep-91 Oct-91                    110.9              1.23497 Nov-91 Dec-91 Jan-92                    111.9              1.24610 Feb-92 Mar-92 Apr-92                    112.9              1.25724 May-92 Jun-92 JUI-92                   114.1              1.27060 Aug-92 Sep-92 Oct-92                    114.9              1.27951 Nov-92 Dec-92 Jan-93                    116.2              1.29399 Feb-93 Mar-93 Apr-93                    116.4              1.29621 May-93 Jun-93 Jul-93                   117.8              1.31180 Aug-93 Sep-93 Oct-93                    118.1              1.31514 Nov-93 Dec-93

Enclosure 2 PG&E Letter HBL-11-003 Page 3 of?
Development of L Component Calculation of Labor Escalation Factor- Reference NUREG-1307, Revision 14, Section 3.1 Using Regional Indices SERIES 10: CIU201 00000002401 (as of 03/06/09)
Jan '86 adjusted to reflect NUREG 1307, Revision 14, Scaling Factor for West Labor (Pg 7)
Note 1: The Base Labor factor was reindexed in December 2005, at which time the index was reset to 100.
Employment Cost Indust West Region              Labor Private Industry        Escalation (1989=100)             Factor Jan-94                    119.4             1.32962 Feb-94 Mar-94 Apr-94                    120.5             1.34187 May-94 Jun-94 JUI-94                   121.3             1.35078 Aug-94 Sep-94 Oct-94                    121.7             1.35523 Nov-94 Dec-94 Jan-95                    122.6             1.36526 Feb-95 Mar-95 Apr-95                    123.4             1.37416 May-95 Jun-95 Jul-95                   123.9             1.37973 Aug-95 Sep-95 Oct-95                      125             1.39198 Nov-95 Dec-95 Jan-96                    125.9             1.40200 Feb-96 Mar-96 Apr-96                    127.3             1.41759 May-96 Jun-96 Jul-96                   128.3             1.42873 Aug-96 Sep-96 Oct-96                    128.9             1.43541 Nov-96 Dec-96 Jan-97                    130.3             1.45100 Feb-97 Mar-97 Apr-97                    131.4             1.46325 May-97 Jun-97 JUI-97                   132.5             1.47550 Aug-97 Sep-97 Oct-97                    133.4             1.48552 Nov-97 Dec-97

Enclosure 2 PG&E Letter HBL-11-003 Page 4 of 7 Development of L Component Calculation of Labor Escalation Factor - Reference NUREG-1307, Revision 14, Section 3.1 Using Regional Indices SERIES ID: CIU20100000002401 (as of 03/06/09)
Jan '86 adjusted to reflect NUREG 1307, Revision 14, Scaling Factor for West Labor (Pg 7)
Note 1: The Base Labor factor was reindexed in December 2005, at which time the index was reset to 100.
Employment Cost Indust West Region               Labor Private Industry         Escalation (1989=100)               Factor Jan-98                    135.2              1.50557 Feb-98 Mar-98 Apr-98                    136.6              1.52116 May-98 Jun-98 Jul-98                   138.5              1.54232 Aug-98 Sep-98 Oct-98                      140              1.55902 Nov-98 Dec-98 Jan-99                    140.3              1.56236 Feb-99 Mar-99 Apr-99                    142.1              1.58241 May-99 Jun-99 JUI-99                   143.3              1.59577 Aug-99 Sep-99 Oct-99                    144.7              1.61136 Nov-99 Dec-99 Jan-OO                      147              1.63697 Feb-OO Mar-OO Apr-OO                    148.8              1.65702 May-OO Jun-OO Jul-OO                   150.8              1.67929 Aug-OO Sep-OO Oct-OO                    151.8              1.69042 Nov-OO Dec-OO Jan-01                     84.1             0.93653 Feb-01 Mar-01 Apr-01                       85             0.94655 May-01 Jun-01 Jul-01                    85.9             0.95657 Aug-01 Sep-01 Oct-01                     86.9             0.96771 Nov-01 Dec-01

Enclosure 2 PG&E Letter HBL-11-003 Page 5 of 7 Development of L Component Calculation of Labor Escalation Factor - Reference NUREG-1307, Revision 14, Section 3.1 Using Regional Indices SERIES 10: CIU201 00000002401 (as of 03/06/09)
Jan '86 adjusted to reflect NUREG 1307, Revision 14, Scaling Factor for West Labor (Pg 7)
Note 1: The Base Labor factor was reindexed in December 2005, at which time the index was reset to 100.
Employment Cost Indust West Region               Labor Private Industry         Escalation (1989=100)              Factor Jan-02                     87.4              0.97327 Feb-02 Feb-02 Mar-02 Apr-02                     88.5             0.98552 May-02 Jun-02 Jul-02                    89.1             0.99220 Aug-02 Sep-02 Oct-02                     89.8              1.00000 Nov-02 Dec-02 Jan-03                     90.9              1.01225 Feb-03 Mar-03 Apr-03                       92              1.02450 May-03 Jun-03 Jul-03                    93.2              1.03786 Aug-03 Sep-03 Oct-03                     93.8              1.04454 Nov-03 Dec-03 Jan-04                     95.3              1.06125 Feb-04 Mar-04 Apr-04                     96.2              1.07127 May-04 Jun-04 Jul-04                    96.9              1.07906 Aug-04 Sep-04 Oct-04                     97.4             1.08463 Nov-04 Dec-04 Jan-05                     98.4             1.09577 Feb-05 Mar-05 Apr-05                     99.3             1.10579 May-05 Jun-05 Jul-05                    99.7             1.11024 Aug-05 Sep-05 Oct-05 (Note 1)             100             2.06000 Nov-05

Enclosure 2 PG&E Letter HBL-11-003 Page 6 of?
Development of L Component Calculation of Labor Escalation Factor - Reference NUREG-1307, Revision 14, Section 3.1 Using Regional Indices SERIES ID: CIU201 00000002401 (as of 03/06/09)
Jan '86 adjusted to reflect NUREG 1307, Revision 14, Scaling Factor for West Labor (Pg 7)
Note 1: The Base Labor factor was reindexed in December 2005, at which time the index was reset to 100.
Employment Cost Indust West Region               Labor Private Industry         Escalation (1989=100)              Factor Dec-05 Jan-06                    100.6             2.07236 Feb-06 Mar-06 Apr-06                    101.8             2.09708 May-06 Jun-06 Jul-06                   102.5              2.11150 Aug-06 Sep-06 Oct-06                      103             2.12180 Nov-06 Dec-06 Jan-07                    104.2             2.14652 Feb-07 Mar-07 Apr-07                    104.9             2.16094 May-07 Jun-07 Jul-07                   105.7             2.17742 Aug-07 Sep-07 Oct-07                    106.5             2.19390 Nov-07 Dec-07 Jan-08                    107.8             2.22068 Feb-08 Mar-08 Apr-08                    108.4             2.23304 May-08 Jun-08 Jul-08                   109.3             2.25158 Aug-08 Sep-08 Oct-08                    109.4             2.25364 Nov-08 Dec-08 Jan-09                    109.9             2.26394 Feb-09 Mar-09 Apr-09                      110             2.26600 May-09 Jun-09 Jul-09                   110.3             2.27218 Aug-09 Sep-09 Oct-09                    110.6             2.27836 Nov-09

Enclosure 2 PG&E Letter HBL-11-003 Page 7 of 7 Development of L Component Calculation of Labor Escalation Factor - Reference NUREG-1307, Revision 14, Section 3.1 Using Regional Indices SERIES ID: CIU20100000002401 (as of 03/06/09)
Jan '86 adjusted to reflect NUREG 1307, Revision 14, Scaling Factor for West Labor (Pg 7)
Note 1: The Base Labor factor was reindexed in December 2005, at which time the index was reset to 100.
Employment Cost Indust West Region               Labor Private Industry         Escalation (1989=100)               Factor Dec-09 Jan-10                    111.3              2.29278 Feb-10 Mar-10 Apr-10                    111.7              2.30102 May-10 Jun-10 Jul-10                   112.3              2.31338 Aug-10 Sep-10 Oct-10                    112.5              2.31750 Nov-10 Dec-10 Jan-11                    113.1              2.32986 Jan-11 is an estimate based on cyclical differences between 0409-0110 and 0408-0109; roughly .6.

Enclosure 3 PG&E Letter HBL-11-003 Humboldt Bay Power Plant, Unit 3 Decommissioning Cost Study Area-By-Area Estimate (7 pages)

Humboldt Bay Power Plant Unit 3                                                                                                                              Humboldt Bay Power Plant, Unit 3                                                                                                                                                Enclosure 3 Decommissioning Cost Study                                                                                                                                                                                                                                                                                                   PG&E Letter HBL-11-003 TLG Services, Inc., Appendix D AREA-BY -AREA ESTIMATE                                                                                                                                                       Page 1 of 7 Thousands of 2008 Dollars                                                                                                            Thousands of 2011 Dollars Off-Site     LLRW                                                                                                                   Off-Site     LLRW                                        Burial/               Utility and Activity                                                                     Decon   Removal Packaging  Transport   Processing   Disposal   Other        Total        Total Class A   Class B  ClassC    GTCC    Decon  Removal   Packaging  Transport  Processing   Disposal    Other       Total      Total    Processed     Craft    Contractor Index                                Activity Description                    Cost    Cost     Costs      Costs       Costs       Costs     Costs     Contingency    Costs  Cu. Feet  Cu. Feet Cu. Feet Cu. Feet Cost    Cost       Costs      Costs      Costs       Costs      Costs    Contingency   Costs     Wt., Lb$. Manhours  Manhours I
PERIOD 2 - SAFSTOR Dormancy ISFSI Completed Projects ISFSI   Design & Licensing 1998-2000                                                                                          -   5,362                  5.362         -                  -        -      -                                                       -    5,362             -    5.362             -
ISFSI   Design & Licensing 2001                                                                                               -     398                    398         -                  -        -      -                              -                        -      398             -      398             -         -
ISFSI   Design & Licensing 2002                                                                                               -     114                    114         -                  -               -                              -                        -      114             -      114             -
ISFSI   Design & Licensing 2003                                                                                               -   2,539                  2.539         -         -                 -      -                              -            -           -    2,539             -    2,539             -
ISFSI   Design & Licensing 2004                                                                                   -           -   1,445                  1,445         -         -        -        -      -                              -                        -    1,445             -    1,445             -
ISFSI   Design & Licensing 2005                                                                      -            -           -   1,672                  1,672         -                  -        -      -        -                     -                        -    1,672             -    1,672             -
ISFSI   Design & Licensing 2006                                                                      -            -           -   3,547                  3,547         -         -        -               -        -                     -                             3,547                  3,547             -
ISFSI   Design/Licensing/Construction 2007                                                           -            -               9,509                  9,509         -         -        -        -               -          -                                        9,509                  9,509             -                      -
ISFSI   Design/Licensing/Construction 2008                                                           -            -             29,200                  29,200                   -        -        -      -        -          -                       -              29,200                  29,200             -
ISFSI   Design/Licensing/Construction 2009                                                           -                              500                    500                   -        -               -        -           -                      -           -      500                    500             -
HBPP Unit #3 1996 - 2008 Completed Projects Dismantlement of Ventilation Stack                                                                  -            -           -   5,740                  5,740         -         -        -                                                           -           -    5,740                  5,740             -         -
Caisson In-Leakage Repair                                                               -           -                        -   1,528                  1,528         -         -                        -                   -          -            -           -    1,528              -   1,528             -
Suppression Chamber/Remove Baffling & Floor Plates                                      -           -            -               7,931                  7,931                   -        -               -                                                            7,931                  7,931             -                      -
Site Characterization for Dismantlement                                                 -           -            -               1,150                  1,150                                     -               -                     -                             1,150                  1,150             -                      -
Miscellaneous Dismantlement Activities                                                  -           -            -                 300                    300                                     -      -                              -                               300              -     300             -         -            -
Planning Decommissioning Activity/Misc Dismantlement Activities                                     -            -                 864                    864                                     -      -                    -         -            -           -      864              -     864             -         -            -
Remove & Dispose Asbestos                                                               -           -            -           -     800                    800                   -                 -      -        -           -                                         800                    800             -         -            -
Radiological Characterization Plant Systems                                                                      -                 732                    732                                            -        -           -                      -                  732                    732             -
Irradiated Hardware Spent Fuel Pool Cleanout and Disposal                                                        -               2,676                  2,676                                     -      -        -           -                      -           -    2,676              -   2,676             -         -            -
Removal & Disposal Energy Absorber                                                                  -            -                 122                    122         -         -        -               -        -           -                      -           -      122              -     122             -         -            -
Removal & Disposal Control Rod Drive Hydraulic Pump Equipment                                       -            -                 201                    201                                                     -                                              -      201                    201             -                      -
Removal & Disposal Service Water Heat Exchanger Equipment                               -           -            -                  66                     66         -                  -        -      -                    -                      -           -       66                     66             -                      -
Removal & Disposal Reactor Water Cleanup Demineralizer Resin Tank                                                -                  37                     37         -         -        -               -                              -                        -       37                     37             -                      -
Removal/Disposal Class A Radioactive Waste Material                                                                              1,045                  1,045                                                                           -            -           -    1,045                  1,045             -
Removal/Disposal Class B & C Materials inel Resin                                                                -               4,822                  4,822         -         -        -                                              -            -           -    4,822                  4,822             -                      -
PERIOD 2 TOTALS                                                                                                                   -           - 82,301                - 82,301         -         -        -        -      -        -                                                  82,301              -                     -
I PERIOD 3b - Planning and Preparation I
Period 3b Additional Costs 3b.2.1          Additional Support Facilities - Radiological Protection                                                           -           -   1,385            267   1,652                            -        -      -        -           -                      -           -    1,465           282    1,747             -
3b.2.2          Additional Support Facilities - Access, Fencing, Laydown Areas                                                                -     378             73     451                   -        -        -      -        -           -         -            -           -      400            77      477             -         -
3b.2.3          Personnel & Material Access RB Access Shaft                                              -                        -           -     520            100     620         -         -        -        -      -                    -                      -           -      564           109      672             -         -
3b.2.4          Cross Contamination Plan                                                                                                            720            180     900                            -        -                                     -            -           -      762           190      952             -
3b.2.5          Replacement of Rad Protection Access Software System                                                                          -     480            120     600                            -                        -                     -            -           -      508           127      635             -         -
3b.2.6          Employee Emergency Notification System                                                                -           -                 320             80     400                            -                        -                     -                        -      338            85      423             -         -
3b.2.7          Infrastructure for Facility Modifications                                                             -                             720            180     900                            -                                              -                               762           190      952             -
3b.2.8          Mixed Waste Disposal                                                                     3          7             -         61                      21      92       126                  -        -      -        -          4          8                      70          -           23      104       18,395          -
3b.2.9          Rebuild Refueling Building Crane                                                                      -           -               1,418            273   1,691         -                  -               -        -           -         -                             1,500           289    1,789             -                      -
3b.2.10         Sr-90 Groundwater Program                                                                             -           -                 454             87     541         -                  -        -      -        -           -         -            -           -      480            93      573             -
3b.2.11         Package Legacy Class B & C Waste                                                                                  -           -   1,535            296   1,831         -         -        -        -      -        -           -         -                             1,666           321    1,987             -                      -
3b.2.12         Procure Initial Inventory of Tools and Equipment                                                      -           -               2,100            405   2,505         -         -        -        -      -                    -                      -                2,221           428    2,650             -                      -
3b.2            Subtotal Period 3b Additional Costs                                                      3          7             -         61   10,030          2,083  12,183       126         -        -        -      -                   4          8            -         70    10,609         2,203   12,894       18,395                       -
Period 3b Collateral Costs 3b.3.1          Decon equipment                                                    954                                                        -                    613   1,568         -                  -           1,010                               -           -           -         -          649    1,658                       -            -
3b.3.2          DOC staff relocation expenses                                          -       -         -                                    -   1,436            277   1,713         -                  -                                    -          -                       -    1,519           293    1,812                       -
3b.3.3          Pipe cutting equipment                                                 -   1,000                                  -           -        -           321   1,321         -                  -                   1,058            -          -                                            340    1,398                       -            -
3b.3            Subtotal Period 3b Collateral Costs                                954     1,000                                              -   1,436          1,211   4,602         -                  -           1,010   1,058            -          -                            1,519         1,281    4,868             -
Period 3b Period-Dependent Costs 3b.4.1          Decon supplies                                                      14         -                      -           -                                  5      19         -         -        -        -     15        -           -          -                       -                      5       20             -                      -
Period 3b Period-Dependent Costs (continued)                                                                                                                                                                              -        -           -                       -          -         -             -        -
3b.4.2          Insurance                                                              -                 -            -           -                  20              3      23          -                 -        -               -           -                      -           -       21             3       24             -                      -
3b.4.3          Property taxes                                                         -                              -           -                    -              -       -        -         -        -        -               -           -          -                       -         -                                                          -
3b.4.4          Health physics supplies                                                -     146          -           -           -                                 47     192         -                  -        -             154           -          -                                             49      203             -                      -
3bA.5           Heavy equipment rental                                                 -      74                      -                       -        -            24      97         -                  -                       78           -          -                                             25      103             -
3b.4.6          Disposal of DAW generated                                              -       -         0          0             -         29         -             9      39       116                  -        -               -          0          0                       34                     10       44         2,318        1 3b.4.7          Plant energy budget                                                            -          -           -           -           -      45              9      53          -                 -                         -          -                                          47             9       56             -
3b.4.8          NRC Fees                                                                       -         -            -           -           -      61              8      69          -                 -        -      -        -           -                       -          -        65            8       73                                    -
3b.4.9          Emergency Planning Fees                                                                  -            -           -           -      25              3      28          -                 -        -      -                    -                       -                   26            3       30 3bA.10          Environmental/ Engineering Support                                             -          -           -           -                 999            192   1,191          -        -        -        -      -         -          -                       -          -    1,056           204    1,260             -
3b.4.11         ISFSI Operating Costs                                                          -         -            -           -                  21              4      25          -        -        -        -      -                    -                                           22            4       26 3b.4.12         Security Staff Cost                                                    -       -         -            -           -           -     897            173   1,070          -        -        -        -      -                    -          -                              949           183    1,132             -                16,457 3bA.13          DOC Staff Cost                                                         -                  -           -           -               2,151            415   2,566          -                          -                           -          -                            2,276           439    2,714             -                25,113 3b.4.14         Utility Staff Cost                                                     -       -         -            -           -           -   1,246            240   1,486          -        -        -        -      -         -          -          -                        -   1,318           254    1,572             -                19,713 3b.4            Subtotal Period 3b Period-Dependent Costs                           14       219         0          0             -         29    5,465          1,131   6,B60       116                                 15      232          0          0                       34    5,781         1,196    7,259         2,318         1      61,2B2 3b.0            TOTAL PERIOD 3b COST                                               969     1,219         4          7             -         90   16,931          4,425  23,645       242                              1,025    1,290          4          8                     104    17,909         4,681   25,021       20,713          1      61,282

Humboldt Bay Power Plant Unit 3                                                                                                                     Humboldt Bay Power Plant, Unit 3                                                                                                                                                       Enclosure 3 Decommissioning Cost Study                                                                                                                                                                                                                                                                                                PG&E Letter HBL-11-003 TLG Services, Inc., Appendix D AREA-BY-AREA ESTIMATE                                                                                                                                                               Page 2 of7 Thousands of 2008 Dollars                                                                                                                 Thousands of 2011 Dollars Off*Site     LLRW                                                                                                                         Off*Site      LLRW                                       Burial I               Utility and Activity                                                           Decon  Removal  Packaging   Transport   Processing   Disposal   Other        Total        Total Class A    Class B  Class C   GTCC    Decon   Removal    Packaging    Transport   Processing    Disposal  Other       Total      Total     Processed     Craft     Contractor Index                               Activity Description          Cost    Cost      Costs       Costs       Costs       Costs     Costs     Contingency    Costs  Cu. Feet   Cu. Feet Cu. Feet Cu. Feet  Cost    Cost        Costs        Costs       Costs        Costs    Costs    Contingency   Costs      Wt., Lbs. Manhours   Manhours PERIOD 3 TOTALS                                                          969    1,219           4           7                      90  16,931           4,425  23,645       242          .                    1,025     1,290            4            8             .       104  17,909          4,681   25,021        20,713          1       61,282 PERIOD 4a
* Systems Removal Period 4a Direct Decommissioning Activities Removal of Major Equipment 4a.1.1           Main Turbine!Generator                                    -      555         70         102                   1,469         -            679   2,875     5,850          -                                587           74         127              -     1,825         -          718    3,331      488,000       3,392             -
4a.1.2           Main Condensers                                           -      496        914           41                  3,047         -          1,264   5,762   12,135           -        -        -              525         966           52              -     3,786         -        1,337    6,665      247,000       1,984             -
4a.1.3           Remove Spent Fuel Racks                                  55       11          23          21                    510         -            210     830     2,025          -        -        -     58        11          24           26              -       634         -          222      976        34,700        211             -
4a.1.4           Fuel Pool Cleanup                                                                                                   -     415             80     495                    -                 -      -          -            -                         -          -     439             85     524              -       750             -
Disposal of Plant Systems 4a.1.5.1         RB2-1                                                     -      119         20            6             -       169                      96     410       868          -                 -      -       129          21             7             -       210         -          104      472        32,917      2,012             -
4a.1.5.2         RB2-2                                                            124          25           7             -      233                      119     509     1,089                            -      -       134           27            9             -       290         -          129      590        41,259      2,071             -
4a.1.5.3         RB2-3                                                            205           9           2             -        20                      74     310       322                                    -      222           10            3             -        25         -            80     340        12,297      3,538             -
4a.1.5.4         RB2-4                                                     -       48           3           1             -         8        -             18      78       123          -                        -        52            3            1                      10                      20       86        4,686        820             -
4a.1.5.5         RB2-5                                                     -      284          54          10             -        96        -            131     575     1,551          -                                308           59           12                     119                    142      641        59,756      4,801             -
4a.1.5.6         RB2-6                                                            367          24           7                      63        -            143     604     1,024          -                                398           26            8                      79         -          155      666        38,844      6,263             -
4a.1.5.7         RB3-1                                                      -      95          14           3             -        64                      53     229       407          -        -               -       103           15            3                      79         -            58     259        15,696      1,654             -
4a.1.5.8         RB4-1                                                            148          30           9             -      213                      121     520     1,354                            -      -       160           33           11                     264         -          132      599        51,348      2,506             -
4a.1.5.9         TB1-1                                                            283        122           41             -    1,620                      635   2,702     6,430                                   -       308         133            51             -     2,013                    689    3,193       242,716      4,932             -
4a.1.5.10        TB1-2                                                              4                                     -          -                      1       5          -                                   -         4            -                         -                                 1        5             -        68             -
4a.1.5.11        TB1-3                                                     -       16                                                -                      5      21          -                                           18             -                         -                                 6       23             -       291             -
4a.1.5.12        TB2-1                                                          1,149        117           34             -    1,341         -            822   3,462     5,321                                    -    1,247         127           42              -     1,666                    891    3,973      201,577      19,280             -
4a.1.5.13        TB2-2                                                             38                                     -          -                     12      51          -                                           42             -            -            -                                13       55             -       692             -
4a.1.5.14        TB3*1                                                     -      509          85          23             -      429          -           316   1,361     3,601                            -              552           92          28              -       532         -          343    1,548       134,937      8,633             -
4a.1.5.15        TB3-2                                                      -       6                                     -          -        -             2       8          -                  -        -       -         7            -            -            -                   -             2        9             -       113             -
4a.1.5.16        TB3-3 clean area                                          -       10           -                         -          -       -              3      14          -                  -        -       -       11             -            -                       -        -             4       15             -       188             -
4a.1.5.17        TB4-1                                                     -      117          20           6             -       167        -             95     404       950                   -        -       -      126           21            7                     208         -          103      466        35,935      1,857             -
4a.1.5.18        TB4-2                                                     -      697          62          17                    458         -            382   1,615     2,602                   -        -       -      756           67          21                      569         -          415    1,827        98,837     11,710             -
4a.1.5.19        TB5-1                                                     -      153          12           3                     141         -            97     406       560                   -        -       -      166           13            4             -       175         -          105      464        20,574      2,617             -
4a.1.5.20        TB5-2                                                     -       92          13           3             -       107        -             66     280       498          -        -                -      100           14            4                     132                      72     322        18,961      1,543             -
4a.1.5.21        TB6-1                                                     -      109          19           5             -       131                      80     344       742          -        -                -      119           20            6                     162                      87     394        28,239      1,832             -
4a.1.5.22        TB6-2                                                      -     128          26           7             -      202          -           111     474     1,148          -        -                -      139           28            9                     251                    120      547        43,543      2,166             -
4a.1.5.23        YARD                                                      -        2                        -                               -              1       2                                              -         2            -                         -          -        -             1        2             -        31             -
4a.1.5.24        YD1-1 clean area                                          -       15                        -                               -              5      20                    -                         -       17             -                         -                   -             5       22             -       278             -
4a.1.5           Totals                                                     -   4,719        654         182                   5,462          -         3,390  14,406   28,591           -                              5,121         710          226                    6,785                  3,678   16,519    1,082,122      79,898             -
4a.1.6           Scaffolding in support of decommissioning                 -      151           4           0           10          6         -            53     225         20                                          164            4            0            13         8         -            58     247         5,967        825             -
4a.1             Subtotal Period 4a Activity Costs                        55    5,932      1,664         346            10    10,495       415          5,675  24,593   48,622           -                 -     60     6,437       1,806          430             13    13,037      451         6,158   28,392    1,857,788      87,060             -
Period 4a Additional Costs 4a.2.1           Modifications Supporting Access for Equipment Removal               -                                    -          -     170             33     203          -                           -       -                                                           -     184             36     220              -          -            -
4a.2.2           Activation Analysis of Reactor                            -         -          -            -            -          -      80             20     100          -         -                 -       -         -                         -            -          -      87             22     109              -          -            -
Subtotal Period 4a Additional Costs                                                                      -          -     250             53     303          -                           -       -                      -                                          271             57     328              -          -            -
Period 4a Collateral Costs 4a.3.1           Process liquid waste                                     15         -          8          34             -        26                      26     108       104          -                       17          -           8           42                      33                      28     127         6,251         27             -
4a.3.2           Small tool allowance                                      -       93                                     -                   -            30     123          -         -                                101             -            -            -          -        -            33     134              -          -            -
4a.3             Subtotal Period 4a Collateral Costs                      15       93           8          34             -        26         -            56     232       104          -        -              17       101            8           42                      33         -            60     261         6,251         27             -
Period 4a Period-Dependent Costs 4a.4.1           Decon supplies                                          117                                                         -        -            37     154          -                           -    127           -           -                         -                                41      167             -          -            -
4a.4.2           Insurance                                                  -                                -                       -     162             21     183          -                           -       -                                                                 176             23      199             -          -            -
4a.4.3           Property taxes                                             -        -           -           -                       -        -              -       -         -         -        -        -       -          -           -                         -                                           -            -          -            -
4a.4.4           Health physics supplies                                    -   2,385            -           -                       -        -           766   3,152          -         -        -        -            2,588             -            -            -                   -          832    3,420              -          -            -
4a.4.5           Heavy equipment rental                                         1,268                                                -        -           407   1,675          -                  -                     1,376                                       -                              442    1,818              -                       -
4a.4.6           Disposal of DAW generated                                                      8           3             -       844         -           273   1,128     3,349          -        -                -                     9            4             -     1,048         -          296    1,358        66,974         22             -
4a.4.7           Plant energy budget                                                                                      -          -     459             89     548                    -        -        -                                           -            -          -     498             96     595              -                       -
4a.4.8           NRC Fees                                                                                                                1,316            169   1,485                             -                                                                            -   1,428            184   1,612              -          -            -
4a.4.9           Emergency Planning Fees                                    -                                                              202             26     228          -                  -                -          -            -                        -                219             28     247              -                       -
4a.4.10          Environmental! Engineering Support                         -                                                        -   7,273          1,402   8,675           -                 -        -       -          -            -                        -              7,892         1,521    9,413              -                       -
4a.4.11          ISFSI Operating Costs                                                                                                     170             33     203           -                 -        -                  -            -                        -                184             36     220              -          -
4a.4.12          Security Staff Cost                                        -                                -                       -   7,182          1,384   8,567          -                  -        -                  -                                                    7,794         1,502    9,296              -          -    133,486 4a.4.13          DOC Staff Cost                                             -        -                                               -  21,109          4,069  25,177          -         -        -        -                                           -            -             22,905         4,415   27,320                         -    251,787 4a.4.14          Utility Staff Cost                                                  -                                               -  12,325          2,376  14,700           -                 -        -       -                                                 -         -  13,374         2,578   15,951                         -    213,619 4a.4             Subtotal Period 4a Period-Dependent Costs               117    3,653           8            3            -       844   50,198         11,052  65,875     3,349                   -             127     3,964            9            4              -    1,048   54,471        11,992   71,616        66,974         22     598,892 4a.0             TOTAL PERIOD 4a COST                                    187    9,679      1,680         383             10   11,365    50,863         16,835  91,003    52,075                   -             203    10,503        1,823         476             13    14,118   55,193        18,268  100,597     1,931,014     87,108     598,892 PERIOD 4b - Reactor Vessel Removal Period 4b Direct Decommissioning Activities                                                                                                                                                                                   -            -           -                       -                                -
Nuclear Steam Supply System Removal 4b.1.1.1         CRDMs & Nls Removal                                       4       31        104           20                     202                      95     456       913                   -        -      5         33         113           25                     251                     103      530       24,050        628             -
4b.1.1.2        IReactor Vessel Internals                                 13    1,774      1,656         384              -     1,497      119          3,358   8,802        506                470              14     1,925        1,797         477                    1,859      129         3,644    9,846        60,589     13,200           660

Humboldt Bay Power Plant Unit 3                                                                                                           Humboldt Bay Power Plant, Unit 3                                                                                                                                                      Enclosure 3 Decommissioning Cost Study                                                                                                                                                                                                                                                                                    PG&E Letter HBL-11-003 TLG Services, Inc., Appendix D AREA-BY-AREA ESTIMATE                                                                                                                                                               Page 3 of 7 Thousands of 2008 Dollars                                                                                                                Thousands of 2011 Dollars Off-Site     LLRW                                                                                                                        Off-Site     LLRW                                      Burial I                 Utility and Activity                                                Decon  Removal   Packaging   Transport   Processing   Disposal   Other       Total        Total Class A   Class B   Class C    GTCC    Decon   Removal    Packaging   Transport   Processing   Disposal   Other       Total     Total    Processed       Craft     Contractor Index                             Activity Description Cost    Cost       Costs       Costs       Costs       Costs     Costs    Contingency    Costs  Cu. Feet  Cu. Feet  Cu. Feet  Cu. Feet Cost     Cost        Costs       Costs       Costs       Costs     Costs    Contingency  Costs     Wt., Lbs. Manhours    Manhours 4b.l.l.3        Reactor Vessel                                  2     4,098        536         132                   7,966       119         9.306  22.158       381    2,699          -         -      2     4,447         581         164              -    9.896       129        10,098 25.317      298.310       13.200           660 4b.l.l          Totals                                         20     5,903      2,296         536             -     9.664       238        12.759  31.416     1.800    2,699        470         -    21      6,406       2,491         666              -   12.006       258        13.845 35.693       382.950      27.028         1.320 Disposal of Plant Systems 4b.l.2.1        RB2-7                                                   306         28            6            -       108                     138     585       904                   -         -      -       332           30           7             -      134         -           149     653       34,459       5.136 4b.l.2.2        RB2-8                                         115       269         62           21            -       203                     237     906     3.267         -         -         -   125        291           67         26              -      252         -           257   1.018      123.326       6.053 4b.l.2.3        RB2-9                                         115       267          59          20            -       192                     233     886     3.104                   -         -   125        290           64         24              -      239                     253     994      117.173       6.249 4b.l.2.4        RW1-1                                                   265         27            7                    283                     181     764     1.124                             -      -       288           30           9             -      352                     196     875       42,705       4.503 4b.l.2.5        RWl-2                                                   269          54          16            -       161                     148     648     2.604                             -      -       292           59         19              -      201                     161     731       92.757       4.611              -
4b.l.2.6        RWl-3                                                     5           1           0            -          8                      4      19        34                             -      -          6           1           0             -       10                       5      21         1.303          87             -
4b.l.2.7        RWl-4                                                   122          15           4            -       173                      98     412       741         -                   -      -       133           16           5             -      214                     106     475       26.242       2.124              -
4b.1.2.8        RWl-5                                                   108          11           3                    140                      82     343       554         -                   -      -       117           12           4             -      173                      88     395       19,650       1.875              -
4b.l.2.9        RWl-6                                                    49          14           4            -         44                     32     144       708         -         -         -      -        53           15           6             -       55         -            35     164       26.687         784              -
4b.l.2.10       RWl-7                                                    19           5           1                      11         -           10      47       172         -         -         -      -        21            5           1             -       13                      11      52         6.568        295 4b.l.2.11       RWl-8                                                     5           1           0                       2                      3      11        34                             -      -          6           1           0             -         3        -             3      12         1.311          83 4b.l.2.12       RWl-9                                            -        4           0           0            -          1                      2       7        17         -         -         -      -          4           0           0             -         1        -             2        8          626          69 4b.l.2.13       RWP                                              -      178                                    -           -                    57     235          -        -         -         -      -       193                                      -                  -            62     255              -     3.080 4b.l.2          Totals                                        230     1.867        277           83            -     1.325                   1.225   5.006   13.264                              -   249      2.026         300         103              -    1.646         -         1.329   5.653      492.806      34,951              -
4b.l.3          Scaffolding in support of decommissioning        -      189           5           0           13          8                     66     281        25                             -      -       205            5           0           16        10         -            72     309         7,458      1,031              -
4b.l            Subtotal Period 4b Activity Costs             249     7,959      2.577         619            13    10.998       238        14,050  36,703   15.089      2,699       470         -   271      8,637       2.797         769            16    13.662       258        15.246 41.655       883,214      63.010         1.320 Period 4b Additional Costs 4b.2.1          Discharge Piping                               50        21           9          36            -       144          -           94     354     2,361                   -         -    55         23           10         45              -      179         -           102     413      165.240         811              -
4b.2.2          Asbestos Removal                                                                               -           -     285            55     340          -                  -         -      -           -          -           -             -         -      309            60     369                          -
4b.2.3          Expand Waste Packaging Laydown Area                                    -           -           -           -     136            26     162          -        -         -         -      -           -                      -             -         -      147            28     176                          -
4b.2            Subtotal Period 4b Additional Costs            50        21           9          36                    144       421           175     856     2,361                             -    55         23           10         45              -      179       457           190     957      165,240         811 Period 4b Collateral Costs 4b.3.1          Process liquid waste                           31          -         15          68            -         53         -           52     218       210                   -         -    33            -         16          84             -       66         -            56     256       12,581           55 4b.3.2          Small tool allowance                             -       73                        -           -           -        -           23      96          -                  -         -      -        79                                      -         -        -            25     104              -           -
4b.3            Subtotal Period 4b Collateral Costs            31        73          15          68                      53         -           75     314       210                             -    33         79           16          84             -       66          -           81     360       12,581           55             -
Period 4b Period-Dependent Costs 4b.4.1          Decon supplies                                475          -                                                        -          153     628          -                            -   516            -           -          -             -         -         -          166     681              -           -
4b.4.2          Insurance                                                                                                        122            16     138          -        -                   -       -          -           -          -             -         -      132            17     150              -           -
4b.4.3          Property taxes                                   -         -                                   -                    -             -       -         -                            -      -           -           -          -             -         -         -                                   -           -
4b.4.4          Health physics supplies                          -    1,822                                    -                    -          585   2,407          -        -                   -      -     1,977             -          -                       -         -          635   2.612              -           -
4b.4.5          Heavy equipment rental                           -    2,261                                                         -          726   2,988          -        -                   -      -     2,454             -          -             -         -         -          788   3.242              -           -
4b.4.6          Disposal of DAW generated                                             6           3                    652          -          211     872     2,587                             -       -          -          7           3                    810          -          229   1,049       51,732           17 4b.4.7          Plant energy budget                                                                -           -                 273            53     325          -        -                   -       -          -           -          -             -         -      296            57     353              -           -            -
4b.4.8          NRC Fees                                         -                     -                       -           -     990           127   1,117          -        -         -         -       -          -           -                                  -    1.074           138   1.212              -           -            -
4b.4.9          Emergency Planning Fees                          -         -           -                                         152            20     171          -                            -      -           -           -                                  -      165            21     186              -           -
4b.4.10         Environmental I Engineering Support                                    -                       -           -   4.225           814   5,039          -                   -        -       -          -           -                                  -    4,584           884   5,468              -           -            -
4b.4.11         Radwaste Processing Equipment/Services                                 -                       -           -     564           109     673          -                   -        -       -          -           -          -             -         -      612           118     730              -           -            -
4b.4.12         ISFSI Operating Costs                                                  -                       -           -     128            25     152          -                   -        -       -          -           -           -                      -      139            27     165              -           -            -
4b.4.13         Security Staff Cost                                                    -           -                       -   5.387         1,038   6,425          -                   -        -       -          -           -                                   -   5,846         1,127   6.972              -           -    100.389 4b.4.14         DOC Staff Cost                                   -                                             -              14.641         2.822  17,463          -                            -       -          -           -           -                       -  15.887         3.062  18.949              -           -    177.845 4b.4.15         Utility Staff Cost                                                                             -               9,835         1,896  11,731          -                            -                  -           -           -                      -   10,673         2.057  12.730              -           -    168.370 4b.4            Subtotal Period 4b Period-Dependent Costs     475     4,083           6           3            -       652   36,316          8,594  50,129     2,587                    -        -   516      4,430            7           3                    810    39,407         9,325  54,499       51,732           17     446.604 4b.0            TOTAL PERIOD 4b COST                          806    12,136      2,608         725            13    11.847   36.975         22,894  88.003    20.246     2.699       470         -   874     13.169       2.830         900             16   14,717    40.122        24.843  97,471    1.112.768      63.892      447.924 PERIOD 4c - Prepare Buildings for Demolition Period 4c Direct Decommissioning Activities Disposal of Plant Systems 4c.1.1.1        HMS1-l                                                   36           8           3            -         34         -           24     105       419                    -                -       39            9           3                     42          -           26     119       15.816         601 4c.l.1.2        HMSl-2                                                    5           3           1            -          9         -            5      24       152                    -        -       -         6           3           1                     12          -            6      28         5.726          96 4c.1.1.3        HMSP                                                      6           1           0            -          2                      3      12        34                    -                          7           1           0                       3         -            3      13         1.275          99 4c.l.l.4        OTS-l                                                     6                                    -                    -            2       7          -                   -                          6            -           -                       -        -            2        8             -       101              -
4c.l.l.5        OTS-2                                                     6                                    -                    -            2       8          -         -         -                          6            -           -                       -        -            2        8             -       102 4c.l.l.6        OTS-3                                                     7                                    -                    -            2      10          -                   -                          8            -           -                       -        -            3       11             -       132              -
4c.l.l.7        OTS-4                                            -        6                                    -           -        -            2       8          -                   -        -       -         6            -                        -          -        -            2        8             -       103              -
4c.l.1.8        OTS-5                                            -       25           3           1            -         21         -           15      65        84          -         -                -       27            3           1                     26          -           17      74         3.217        418              -
4c.l.l.9        OTS-6                                            -        1                                    -           -                     0        1         -                   -        -       -         1            -                                   -        -            0        1             -         13             -
4c.l.l.10       RB1-l                                                    88           8           2             -        91                     59     248       361                                             95            9           3                    113          -           64     284        13.723      1.508 4c.l.1.11       RBl-2                                                    32           3           1            -         29         -           20      85       116                    -        -       -       35            3           1                      36         -           22      97         4,417        544              -
4c.l.1.12       RBl-3                                            -       21           2           1            -          7         -            9      40       106                    -                        23            2           1                       8         -           10      44         4.001        368              -
4c.l.1.13       RBl-4                                                   116          14           4             -        50         -           56     239       611                    -        -              126           16           5                     61          -           60     268       23.199       1.990 4c.1.1.14       RBl-5                                                   127          16           4            -         44         -           58     249       711                    -                       138           17           5                      55         -           63     277       26.146       2.170              -
4c.l.1.15       RBl-6                                          52       211          20           6            -       228          -          178     695       907          -         -              57       229           22           7                    284          -          193     791       34.362       4.245 4c.1.1.16       RB3-2                                            -       15           3           1            -         22         -           12      53        93          -         -                -        16           3           1                      27         -           13      61         3,566        265 4c.l.l.17       RB4-2                                                    62           7           2             -        76         -           46     193       325                    -        -               68            7           2             -        94         -           50     221        11.592      1.082 4c.l.1.18       RB5-1                                            -       23           3           1             -         9         -           11      47       148          -         -        -       -        25           3           1                      11         -           12      53         5.513        381 4c.l.l.19       RB5-1 (HVAC Scope)                               -       22           9            3            -        29                     18      80       467                    -        -               23           10           4                      36         -           19      92        17,640        319

Humboldt Bay Power Plant Unit 3                                                                                                           Humboldt Bay Power Plant, Unit 3                                                                                                                                                       Enclosure 3 Decommissioning Cost Study                                                                                                                                                                                                                                                                                     PG&E Letter HBL-11-003 TLG Services, Inc., Appendix D AREA-BY-AREA ESTIMATE                                                                                                                                                                Page 4 of 7 Thousands of 2008 Dollars                                                                                                             Thousands of 2011 Dollars Off*Site     LLRW                                                                                                                      Off*Site     LLRW                                         Burial!                 Utility and Activity                                                  Decon  Removal  Packaging   Transport   Processing   Disposal   Other      Total        Total Class A   Class B  Class C   GTCC    Decon  Removal    Packaging    Transport    Processing   Disposal   Other       Total      Total     Processed       Craft     Contractor Index                              Activity Description  Cost    Cost      Costs       Costs       Costs       Costs     Costs   Contingency    Costs  Cu. Feet  Cu. Feet Cu. Feet Cu. Feet Cost    Cost        Costs        Costs        Costs       Costs     Costs    Contingency   Costs      WI., Lbs. Manhours    Manhours 4c.1.1.20       RBP                                              23      199           2           2                       8                    82     315       135         .        -        -    25       215            2            2             -        10         -            89      344          9,465      2,710 4c.1.1.21       TB7-1                                              -      59                                                                    19      78          -                 -              -        64             -           -             -          -        -            21        85             -      1,067 4c.1.1.22       TB7*2                                                      9            -                       -           -                    3      13          -                 -        -     -        10             -                         -          -                       3       14             -        171 4c.1.1.23       TB7*3                                                     11           4           1            -         13                     9      38       209                  -        -     -        12            4            2             -        16         -              9       43         7,906        161 4c.1.1.24       TB7-4                                                     13                       0            -          3        -                             28                  -        -     -        14            1                          -         3         -              5       23         1,040        227 4c.1.1.25       TB7-5                                                     27 1
8           2            -         11        -
5 13 21 61       348                  -        -     -        29            8            &deg; 3             -        13                      15        68       13,169         427 4c.1.1.26       TB7-6                                                     39          10           3            -       100         -           47     199       514                  -              -        42           11            4             -       125         -            51      233        19,435         587 Disposal of Plant Systems (continued)                                                                                                                                                                -          -                         -            -          -        -              -         -
4c.1.1.27       TB7-7                                                     13                                                -       -            4      18          -                 -              -        14                                       -          -                       5       19                      240 4c.1.1.28       TBP                                                    1,000                                                -       -          321   1,322          -                 -                    1,086             -            -            -          -                    349    1,434                    17,317 4c.1.1.29       YD1-2                                              -       7           2           1            -         31        -           13      55       124         -        -                        8            3            1             -        39                      14        64         4,692        104              -
4c.1.1.30       YD1-5                                                      9           2           1            -          7        -            6      25       114         -        -                       10            2            1             -         9                        6       28         4,272        138 4c.1.1.31       YD2*1                                              -      56           4           1            -         14        -           23      98       168         -        -                       61            5            1             -        17                      25      108          6,375        947 4c.1.1.32       YD2-2                                                     19           3           1            -          8        -            9      40       133                  -                       20            3            1             -        10                      10        45         5,024        302              -
4c.1.1.33       YD2-3                                                      8           2          .1            -          9                     6      26       111                  -                        9            3            1             -        11                        6       29         4,197        125              -
4c.1.1.34       YD2-4                                              -     116         30            8            -       351         -          156     661     1,394                  -                      126           32           10             -       436                     169      774        49,592       1,994 4c.1.1.35       YD2-5                                              -     253         46           15            -       585         -          278   1,176     2,320                  -              -       275           50           18             -       726                     302    1,371        87,642       4,102 4c.1.1.36       YD2-6                                                    185         28            9            -       350         -          177     750     1,390                  -               -      201           30           11             -       435                     193      870        52,552       2,693              -
4c.1.1.37       YDP                                                      178          17           5            -         54        -           78     331       864                  -        -      -      193           18            6             -        67                      84      369        31,068       1,875              -
4c.1.1          Totals                                           76    3,016        258           78            -     2,195         -        1,771   7,393    12,387         -        -             82     3,273         280           97              -     2,726         -         1,921    8,380       466,620      49,727              -
4c.1.2          Scaffolding in support of decommissioning          -      38           1                        3                   -           13      56         5                  -               -       41            1                          3         2                      14        62         1,492        206              -
                                                                                                       &deg;                       2
                                                                                                                                                                                                                                             &deg; Decontamination of Site Buildings 4c.1.3.1        HMS                                                       57           6           4            -         18        -           25     110       281         -        -        -              62            6            5             -        22                      28      122        19,674         821              -
4c.1.3.2        Hot Machine Shop & Calibration                             3           1                        -          9        -            4      18        48                  -        -               4            1                          -        11         -              5       21         2,015          55             -
4c.1.3.3        RBi                                              91    1,748        542         180&deg;            -     3,807         -        1,948   8,317    18,660                  -        -    99     1.897         589          224&deg;             -     4,730         -         2,113    9,652       989,526      29,415              -
4c.1.3.4        RB2                                                -   3,120        207           49            -     1,693         -        1,582   6,651     6,249                  -        -           3,385         225           61              -     2,103         -         1,717    7,491       280,809      54,462              -
4c.1.3.5        RB3                                                       99           7           3            -         54        -           51     214       328                  -               -      108            7            4             -        67         -            55      241        17,949       1,484              -
4c.1.3.6        RB4                                                       81           7           3            -         54        -           45     191       336                  -                       88            7            4             -        68         -            49      216        18,543       1,206              -
4c.1.3.7        RB5-1 (Refuel Bldg Roof)                                  19           4           3                      12        -           11      47       190                  -                       20            4            3             -        15         -            12        54       13,290         254 4c.1.3.8        RW1                                                -     534        166           44            -     1,289                    616   2,649     5,192                  -                      580         180            55             -     1,601         -           668    3,084       247,927       7,988 4c.1.3.9        Refueling                                          -       3           4           1            -         46                    16      70       190                  -               -        3            4            1             -        57         -            18        83         5,487          53 4c.1.3.10       TB1                                                       93           8           5                      46                    47     198       417                  -                      101            9            6              -       57         -            50      223        26,269       1,356 4c.1.3.11       TB2                                                -     122          11           7                      47        -           57     244       538                  -        -      -      133           12            8              -       58         -            62      273        35,623       1,775 4c.1.3.12       TB3                                                       30           6           4                      25        -           19      84       293                  -               -       33            6            5              -       31         -            21        96       19,550         423 4c.1.3.13       TB4                                                -     203          11           6            -         73                    91     385       565         -        -               -      221           12            8              -       90         -            99      430        33,971       3,005              -
4c.1.3.14       TB5                                                       87           4           3                      13        -           33     140       209                  -        -      -       94            5            3              -       16         -            36      154        14,628       1,270 4c.1.3.15       TB6                                                       76           4           3                      12        -           29     124       196                  -        -      -       82            4            3              -       15         -            32      136        13,698       1,106 4c.1.3.16       TB7                                                -      31           6           4            -         20                    18      79       313                  -        -      -       33            7            5              -       24         -            19        89       21,936         423 4c.1.3.17       Turbine                                            -       4           4           1            -         54                    20      83       223                  -        -      -        5            5            1              -       67         -            21        99         6,442          76 4c.1.3.18       YD1                                                       24           3           2                       8                    11      47       129         -        -        -      -       26            3            2              -       10         -            12        53         9,054        343              -
4c.1.3.19       YD2                                                -      98          12           8                      36        -           46     200       582         -        -        -             107           13           10              -       45         -            50      224        40,746       1,403 4c.1.3          Totals                                           91    6,434      1,012         330                   7,315                  4,669  19,851    34,940                  -        -    99     6,981       1,098          410               -    9,088         -         5,066  22,742      1,817,136     106,919 4c.1 Activity Costs                                             166    9,487      1,271         409             3     9,511                  6,453  27,300    47,332                  -            181    10,295       1,379          508              3    11,816         -         7,002   31,184     2,285,247     156,852 Period 4c Additional Costs 4c.2.1          Contaminated Soil Removal                                211        663       2,567                  14,035                  5,157  22,633   169,154                                                                                                                                   11,840,787       2,684 4c.2.2          Replacement of Drains and Catch Basins             -      75                                                        -           24      99          -                 -               -       82                          -                       -        -            26      108                       687              -
4c.2.3          Caisson Mixed Waste Removal                        -     159          10          40            -     1,175                    438   1,822     2,433                  -               -      173           11           50              -    1,459         -           475    2,168       170,284       2,117              -
4c.2.4          Site work supporting spent fuel pool removal       -                                                             990           191   1,180          -        -        -        -      -         -                         -             -         -    1,074           207    1,281                       507 4c.2.5          Removal of 3 spent fuel pool walls                 -     704          68        418             -     3,479         -        1,433   6,101    24,120         -        -                      764           73         519                    4,322         -         1,555    7,233     2,210,400      49,551 4c.2.6          Removal of Yard Pipe Tunnel                        -     647          14        205             -     2,561         -        1,072   4,498    10,162         -                        -      702           15         254               -    3,181         -         1,163    5,315     1,219,420      24,962 4c.2.7          Contaminated Soil & Concrete Storage Facility      -        -                       -           -                436            84     520          -        -                 -      -                      -                                    -      473            91      564                       476              -
4c.2            Total                                                  1,796        754       3,230                  21,250    1,425         8,398  36,854  205,$69                                        1,949         819        4,012                   26,399     1,547         9,113   43,838    15,440,890      80,983 Period 4c Collateral Costs 4c.3.1          Process liquid waste                             28         -         14          61            -         48                    47     197       189                                30          -          15           76              -       59         -            51      231         11,354          49 4c.3.2          Small tool allowance                                     179            -                       -           -       -           58     237                            -               -      195             -            -             -         -        -            62      257               -
4c.3.3          Decommissioning Equipment Disposition                       -       206            7          540       335                    240   1,328     1,058                  -               -                  224             8           671       417         -           260    1,580       309,936         123 4c.3            Subtotal Period 4c Collateral Costs              28      179        220           68          540       383                    344   1,762     1,247                  -             30       195         239            84           671       476         -           373    2,068       321,290         173 Period 4c Period.Dependent Costs 4c.4.1          Decon supplies                                   58         -                                                                   19      77          -        -                      63                       -            -             -                               20        84              -                        -
4c.4.2          Insurance                                          -                                -                             72             9      81          -        -                                  -            -            -             -                 78            10        88              -
4c.4.3          Property taxes                                     -                                                        -       -             -       -         -        -        -                         -                         -                       -                                 -             -
4c.4.4          Health physics supplies                            -     624            -           -                       -       -          200     824          -                                        677             -            -             -         -        -           218      895               -
4c.4.5          Heavy equipment rental                             -   1,503                        -           -                   -          290   1,793          -                                      1,631                                                                       314    1,946 Period 4c Period*Dependent Costs (continued) 4c.4.6          Disposal of DAW generated                                   -          1            1           -       134         -           43     179       533                  -               -                      1            1             -      167          -           47      216         10,651           3 4c.4.7          Plant energy budget                                                                             -                 97            19     115                            -                                                                                  105            20       125                                       -
4c.4.8          NRC Fees                                                    -                                               -    658            85     743                   -        -               -                       -                                   -      714            92      806               -
4c.4.9          Emergency Planning Fees                            -        -                                   -           -    101            13     114                            -        -      -                       -           -             -         -      110            14       124              -
4c.4.10         Environmental I Engineering Support                         -                                   -              2,648           510   3,159                   -                        -                       -                                        2,874           554    3,428 4c.4.11         Radwaste Processing Equipment/Services             -                                                        -    375            72     447          -                 -                          -            -            -                      -      407            78      485 4c.4.12          ISFSI Operating Costs                             -        -                                   -                 85            16     101          -                                 -          -            -            -                              92             18      110                          -
4c.4.13         Security Staff Cost                                -                                                           3,591           692   4,283          -                                            -            -            -                           3,897           751    4,648                                  66,743 4c.4.14         DOC Staff Cost                                     -        -                                   -              9,559         1,843  11,402          -                 -               -          -            -                                       10,373         1,999   12,372                                 119,282 4c.4.15         Utility Staff Cost                                                                               -             6,662         1,284   7,946          -        -        -                          -            -            -                       -   7,229         1,393    8,622               -           -     115,757

Humboldt Bay Power Plant Unit 3                                                                                                                                                                                                                                                                                                          Enclosure 3 Humboldt Bay Power Plant, Unit 3 Decommissioning Cost Study                                                                                                                                                                                                                                                                                              PG&E Letter HBL-11-003 TLG Services, Inc., Appendix D                                                                                                                             AREA-BY-AREA ESTIMATE Page 5 of 7 Thousands of 2008 Dollars                                                                                                             Thousands of 2011 Dollars Off-Site     LLRW                                                                                                                    Off-Site     LLRW                                       Burial!                Utility and Activity                                                              Decon  Removal  Packaging   Transport   Processing    Disposal   Other       Total         Total Class A  Class B  Class C   GTCC    Decon   Removal   Packaging   Transport  Processing   Disposal   Other       Total       Total   Processed     Craft     Contractor Index                                Activity Description            Cost    Cost      Costs       Costs       Costs        Costs     Costs    Contingency     Costs  Cu. Feet Cu. Feet Cu. Feet Cu. Feet  Cost    Cost       Costs       Costs      Costs       Costs     Costs    Contingency   Costs     Wt..Lbs. Manhours    Manhours 4cA               Subtotal Period 4c Period-Dependent Costs                   58   2,127           1           1                     134    23,848         5,096   31,265       533                 -        -     63     2,308           1          1                     167   25,878         5,529   33,948      10,651           3     301,782 4c.O             TOTAL PERIOD 4c COST                                        252  13,590      2,247       3,707            543    31,279    25,274        20,290   97,181  254,980                  -            274     14,747      2,438       4,605         674     38,858    27,425        22,017  111,038  18,058,079   238,011       301,782 PERIOD 4d - Building Demolition, Yard Work, Soil Remediation Demolition of Site Buildings 4d.1.1            Contaminated Equipment Storage                                       7          10          42                     174                      44      278     2,842                 -               -         8          11         52            -        216                     48      335     198,936          90 4d.1.2            Gas Stack                                                    -      33         82          331             -     1,381          -          347    2,175    22,563                 -               -        36          89        412            -     1,715                     377    2,629   1,579,419        184              -
4d.1.3            Hot Machine Shop & Calibration                               -      20         24           95             -       394          -          101      634     6,445                 -               -        22         26         118                     490                    110      765     451,120        252 4d.1A             New Off Gas Vault                                                   80        189          759             -     3,163          -          796    4,987    51,687                 -               -        87        205         943                  3,930                     863    6,028   3,618,076        460              -
4d.1.5            Radwaste Treatment                                           -     145        149          597             -     2,490                     642    4,023    40,680                 -               -       157        161         742            -     3,093          -          697    4,850   2,847,575      1,322              -
4d.1.6            Refueling                                                    -   1,099        310       1,247              -     5,196                   1,494    9,346    84,907        -        -        -      -     1,192        337       1,549                  6,455          -        1,621   11,154   5,943,511      3,112 4d.1.7            Solid Waste Vault                                            -       4           6          23             -         96                     24      153     1,572                 -        -      -         4           6         29            -        120         -           27      185     110,067          30 4d.1.8           Turbine                                                       -     243        389       1,565              -     6,522                   1,656   10,375   106,576                 -               -       263        422       1,944                  8,103          -        1,797   12,530   7,460,292      1,674 4d.1.9           Yard Structures                                               -      57         36          143             -       598          -          158      992     9,765                 -               -        62          39        178            -        742         -          172    1,193     683,540        647 4d.l            ITotals                                                        -   1,687      1,195       4,803              -    20,015          -        5,262   32,962   327,036                                 -     1,831      1,296       5,967            -    24,864          -        5,710   39,668  22,892,536      7,770 I
Period 4d Additional Costs 4d.2.1            Backfill of Structures and Site                              -   1,460                                     -          -         -          281    1,741         -                                       1,584                                              -         -          305    1,890            -
4d.2            I Subtotal Period 4c Additional Costs                          -   1,460                                     -          -         -          281    1,741                           -        -      -     1,584            -         -                       -         -          305    1,890            -
Period 4d Collateral Costs 4d.3.1            Small Tool Allowance                                                 9                                     -                    -            2       11 ISubtotal Period 4d Collateral Costs                           -       9                                     -          -         -            2       11                           -                        10            -                      -          -         -            2       11            -                        -
Period 4d Period-Dependent Costs 4dA.l             Insurance                                                    -        -          -                         -          -      138            18      155         -                 -        -      -          -                     -            -                 149            19      168            -          -             -
4dA.2             Property taxes                                               -        -                                    -          -         -                               -                 -                                                                                                                     -                        -
4dA.3             Health phYSics supplies                                      -     441                                     -                    -          142      582                           -        -              478            -                      -                    -          154      632            -                        -
4dAA              Heavy equipment rental                                       -     925           -                         -          -         -          178    1,104                  -        -        -            1,004            -                      -          -         -          194    1,198            -                        -
4dA.5             Disposal of DAW generated                                    -        -          1           0             -         98         -           32      131       390                 -                          -          1          0                     122                     34      158        7,793          3             -
4dA.6             Plant energy budget                                          -        -                                    -          -      150            29      179                           -               -          -           -         -                              163            31      194            -                        -
4dA.7             NRC Fees                                                     -                                             -          -      350            45      395         -                 -        -      -          -           -                                        380            49      429            -          -             -
4d.4.8            Emergency Planning Fees                                      -                                             -                 194            25      218                                    -                             -                                        210            27      237            -                        -
4dA.9             Environmental/Engineering Support                            -        -                       -            -          -    3,137           605    3,742         -                 -        -                             -                      -      -        3,405           656    4,061            -          -             -
4dA.l0            Radwaste Processing Equipment/Services                       -        -                                    -          -      719           139      858         -                          -                 -           -         -                              781           150      931            -                        -
4dA.11            ISFSI Operating Costs                                                                                      -          -      163            31      194                           -        -      -          -           -                                        177            34      211            -                        -
4dA.12            Security Staff Cost                                          -                                             -          -    6,079         1,172    7,251                           -        -                             -                      -          -    6,596         1,271    7,868            -                116,520 4dA.13            DOC Staff Cost                                               -                                -            -          -   14,518         2,798   17,316                           -        -      -          -           -                                     15,754         3,037   18,790            -                194,800 4dA.14            Utility Staff Cost                                           -        -                                    -          -   10,603         2,044   12,647         -                 -        -      -                      -                                     11,505         2,218   13,723            -                176,920 Subtotal Period 4d Period-Dependent Costs                    -   1,366           1           0             -         98   36,051         7,257   44,773       390                 -        -            1,482           1          0                     122   39,119         7,874   48,599        7,793          3     488,240 4d.0              TOTAL PERIOD 4d COST                                         -   4,522      1,196       4,803              -    20,113    36,051        12,802   79,486  327,426                  -        -            4,907      1,298       5,967                 24,986    39,119        13,892   90,169  22,900,330      7,773      488,240 PERIOD 4e - License Termination Period 4e Direct Decommissioning Activities 4e.1.1            ORISE confirmatory survey                                    -                                             -          -      151            29      180         -                 -        -       -                     -          -                      -      164            32      195            -          -             -
4e.l.2            Terminate license                                            -                                             -          -         -             -                 -                 -        -      -          -           -          -           -          -                                -           -          -             -
4e.l              Subtotal Period 4e Activity Costs                            -                    -           -            -          -      151            29      180         -                 -               -                                 -           -          -      164            32      195            -          -             -
Period 4e Additional Costs 4e.2.1          ILicense Termination Survey (sample analysis & equipment)                          -            -                       -      725           279    1,004         -        -        -        -      -                      -          -                             787           303    1,090            -          -             -
4e.2              Subtotal Period 4e Additional Costs                                              -            -                       -      725           279    1,004         -        -        -        -       -                     -                                        787           303    1,090            -          -             -
Period 4e Collateral Costs 4e.3.1          IDOC staff relocation expenses                                 -                                -            -          -    1,436           277    1,713         -        -        -                          -           -                                      1,559           300    1,859            -          -             -
4e.3              Subtotal Period 4e Collateral Costs                                                                        -          -    1,436           277    1,713         -        -        -                          -           -          -                           1,559           300    1,859            -          -             -
Period 4e Period-Dependent Costs 4eA.1             Insurance                                                                                                                     24             3       27                           -                -         -           -          -                      -       26             3       29            -                        -
4e.4.2            Property taxes                                                        -          -                         -           -        -                      -                          -        -                 -                      -           -          -                       -        -           -                        -
4eA.3             Health physics supplies                                            192                                     -           -        -           62      254         -                 -        -              209            -          -           -          -                     67      276            -
4eAA              Disposal of DAW generated                                             -          0           0                       38         -           12       51       152                 -        -                 -          0          0            -         48                     13       62        3,036          1 4eA.5             Plant energy budget                                          -        -                                    -           -      16             3       19         -                 -        -                             -          -                      -       18             3       21            -
4eA.6             NRC Fees                                                                                                   -           -     236            30      266         -                 -        -       -                     -          -                             256            33      289            -
4eA.7             Emergency Planning Fees                                      -        -                                                       34             4       38         -        -        -        -       -                     -                                         37             5       41            -                        -
4eA.8             Environmental/Engineering Support                            -        -           -           -            -           -     443            85      528         -                 -        -       -                     -                                        481            93      573            -
4eA.9             ISFSI Operating Costs                                        -                    -                        -                  28             5       34         -        -        -                -         -           -                                         31             6       37            -
4eA.10            Security Staff Cost                                          -                                                               948           183    1,131         -        -        -        -       -                     -          -                       -   1,029           198    1,227            -                  18,126 4eA.l1            DOC Staff Cost                                               -                    -           -            -           -   2,128           410    2,538         -        -        -                -                                -                           2,309           445    2,754            -                  28,757 4eA.12            Utility Staff Cost                                           -                    -           -                        -   1,457           281    1,737         -                 -                -         -           -          -                       -   1,581           305    1,885            -                  22,831 4eA               Subtotal Period 4e Period-Dependent Costs                          192           0           0                       38    5,314         1,080    6,624       152        -        -        -       -      209           0          0            -         48    5,766         1,171    7,194        3,036          1       69,714 4e.0              TOTAL PERIOD 4e COST                                         -     192           0           0                       38    7,626         1,665    9,522       152                 -        -       -      209           0          0            -         48    8,275         1,807   10,339        3,036          1       69,714 PERIOD 4 TOTALS                                                            1,246  40,119      7,731        9,618           566    74,641   156,788        74,487  365,195   654,879    2,699      470        -  1,352    43,534      8,389      11,948          703    92,727   170,134        80,827  409,613  44,005,225    396,785    1,906,552

Humboldt Bay Power Plant Unit 3                                                                                                             Humboldt Bay Power Plant, Unit 3                                                                                                                                                          Enclosure 3 Decommissioning Cost Study                                                                                                                                                                                                                                                                                           PG&E Letter HBL-11-003 AREA-BY-AREA ESTIMATE                                                                                                                                                                  Page 6 of 7 TLG Services, Inc., Appendix D Thousands of 2008 Dollars                                                                                                                  Thousands of 2011 Dollars Off-Site     LLRW                                                                                                                          Off-Site     LLRW                                         Burial I                Utility and Activity                                                  Decon    Removal  Packaging   Transport   Processing   Disposal  Other        Total         Total  Class A   Class B   ClassC     GTCC     Decon    Removal  Packaging   Transport   Processing   Disposal  Other        Total      Total      Processed      Craft     Contractor Index                               Activity Description  Cost     Cost      Costs       Costs       Costs       Costs    Costs     Contingency     Costs   Cu. Feet  Cu. Feet  Cu. Feet  Cu. Feet   Cost     Cost      Costs       Costs       Costs       Costs    Costs     Contingency   Costs       Wt., Lbs. Manhours   Manhours I
PERIOD 5b - Site Restoration Period 5b Direct Decommissioning Activities Site Closeout Activities 5b.1.1           Grade & landscape site                            -       41                                     -                   -            13        55         -         -         -         -       -       45            -          -             -         -         -            14        59                      105 5b.1.2           Final report to NRC                               -                                              -          -     195             38      233          -         -         -         -       -                                              -         -      212             41      252                          -         1,560 5b.1             Subtotal Period 5b Activity Costs                  -      41                        -            -          -     195             51      287          -                                      -      45            -          -             -         -      212             55      312                       105          1,560 Period 5b Additional Costs 5b.2.1           Disposal of Asphalt Roadways                       -                                -            -                 63             12        75                                                                                              -         -       68             13        81 5b.2.2           Disposal of Legacy Class B & C Waste              -                              148                   1,400         -           478    2,026          -       384        96         -                 -           -        183             -     1,739         -           519    2,441         14,050           -             -
5b.2.3           Disposal of Intermodal Containers                 -                                 -                       -     975            188    1,163                                                          -           -                        -         -    1,058            204    1,262 5b.2             Subtotal Period 5b Additional Costs                -        -                    148                   1,400    1,038            678    3,264                  384       96          -        -        -           -        183             -     1,739    1,126            736    3,785         14,050           -             -
Period 5b Collateral Costs 5b.3.1         ISmail tool allowance                                -        0                                               -                      0         0         -         -         -         -        -        0           -          -             -         -         -              0         0                        -             -
5b.3             Subtotal Period 5b Collateral Costs               -         0                                    -          -                      0         0         -         -                   -       -         0           -          -             -         -         -              0         0             -          -             -
I Period 5b Period-Dependent Costs 5bA.1            Insurance                                          -        -           -                        -          -      36              5        40         -         -         -                  -        -           -                                  -        39              5       44              -          -             -
5bA.2            Property taxes                                              -           -                        -          -                       -         -        -         -         -         -        -                    -          -             -                   -              -                       -          -             -
5bA.3            Plant energy budget                                -        -                                    -          -      12              2        14         -         -                   -        -                    -          -             -                  13              3       16              -          -             -
5bAA             NRC ISFSI Fees                                    -         -                                    -          -      98             13      111          -         -                            -        -           -          -             -                106             14      120               -          -             -
5bA.5            Emergency Planning Fees                           -         -                                    -          -      50              6        57         -                             -        -        -           -                        -         -        55              7       62              -          -             -
5b.4.6           ISFSI Operating Costs                                                                                       -      42              8        50         -         -                            -        -           -                        -         -        46              9       55              -          -             -
5bA.7            Security Staff Cost                                         -           -                                   -   1,422            274    1,696          -         -         -         -        -        -           -                        -              1,543            297    1,840               -          -       27,040 5bA.8            DOC Staff Cost                                    -         -           -                                   -     127             24      152          -         -         -         -        -        -           -          -             -                138             27      164               -          -         1,300 Period 5b Period-Dependent Costs (continued)                                                                                                                                                                   -        -           -          -             -                   -              -
5bA.9            Utility Staff Cost                                -         -                                               -     428             83      511          -         -                   -        -        -           -                        -                465             90      554               -          -         7,540 5bA               Subtotal Period 5b Period-Dependent Costs                  -           -                        -          -   2,215            415    2,631           -        -                   -        -        -           -                        -         -    2,404            451    2,855               -                  35,880 5b.0             TOTAL PERIOD 5b COST                               -      41                     148                   1,400    3,448          1,144    6,182           -      384        96                  -       45           -        183             -     1,739    3,742          1,242    6,951         14,050        105        37,440 PERIOD 5c - Fuel Storage Operations Period 5c Period-Dependent Costs 5cA.1             Insurance                                         -        -                                               -     251             32      284           -        -          -        -        -        -                                    -         -      273             35      308               -                        -
5cA.2             Property taxes                                    -        -           -                        -          -        -              -         -         -        -          -                 -        -                                    -                                  -                       -                        -
5cA.3             Plant energy budget                                        -                                               -                                 -         -        -                                     -           -                        -                   -              -                       -                        -
5cAA              NRC ISFSI Fees                                    -         -          -                                   -     709             91      801           -                            -        -         -          -                        -                770             99      869               -                         -
5c.4.5            Emergency Planning Fees                           -         -                       -                      -     354             45       399          -        -                   -        -         -                                   -                384             49      433               -          -              -
5cA.6             ISFSI Operating Costs                             -                                                        -     297             57       355          -        -          -                           -                                   -                323             62      385               -                         -
5cA.7             Security Staff Cost                               -         -                                              -   9,998          1,927   11,925           -         -                                     -          -                        -             10,849          2,091   12,941               -                 190,023 5cA.8             DOC Staff Cost                                    -         -          -                        -          -     198             38      236           -                   -        -                  -          -                        -                215             41      257               -                    1,827 5cA.9             Utility Staff Cost                                -         -                       -                      -   1,087            210    1,297           -                                     -         -          -           -            -         -    1,180            227    1,407               -                   14,617 5cA               Subtotal Period 5c Period-Dependent Costs         -         -                                              -  12,896          2,401   15,297           -        -          -                                      -                                  -   13,993          2,606   16,599               -                206,467 5c.0             TOTAL PERIOD 5c COST                               -         -                                              -  12,896          2,401   15,297           -                   -                                                                                                                                     -     206,467 PERIOD 5d - Spent Fuel and GTCC shipping Period 5d Direct Decommissioning Activities Nuclear Steam Supply System Removal 5d.1.1.1          Vessel & Internals GTCC Disposal                  -                   95                        -       346         -            79       519          -                   -       17        -         -       103                                 429                      86      618           3,228                         -
5d.1              Subtotal Period 5d Activity Costs                 -                   95                        -       346         -            79       519          -                   -       17        -         -       103                         -       429                      86      618           3,228                         -
Period 5d Collateral Costs 5d.3.1          ITransfer Spent Fuel to DOE                         -         -                       -           -          -     462             89       551          -         -         -                                                                                                                          -                         -
5d.3.1            Subtotal Period 5d Collateral Costs               -                                 -                            462             89       551          -                   -
I Period 5d Period-Dependent Costs 5dA.1             Insurance                                         -         -                       -                             36               7       43          -                   -                           -           -          -                       -       39              8       47 5dA.2             Property taxes                                    -         -          -            -                      -        -               -        -         -                   -                  -        -          -                         -
5dA.3             Plant energy budget                                         -          -            -                      -        -               -        -         -         -         -                           -           -          -             -                   -                        -
5dAA              NRC ISFSI Fees                                              -           -           -                      -      99             13       111          -                   -                           -           -                                        107              14      121                          -
5dA.5             Emergency Planning Fees                           -         -          -            -                      -      51               7       57          -                   -                           -           -                        -                 55              7       62               -                        -
5dA.6             ISFSI Operating Costs                                                  -            -                      -      43               8       51          -                   -                           -           -                        -                 46              9        55              -          -
5dA.7             Security Staff Cost                                         -           -           -            -         -   1,430            276     1,705          -                   -         -                 -           -                                      1,551            299    1,850                           -
5d.4.8            DOC Staff Cost                                    -                    -            -                             28               5       34          -                   -         -        -        -           -                        -         -       31              6        37                         -
5dA.9             Utility Staff Cost                                                     -            -                      -     156             30       186          -                   -                  -        -           -                                  -      169             33      201               -                   2,091 5dA.              Subtotal Period 5d Period-Dependent Costs         -                     -           -                          1,841            345    2,187           -                   -                  -        -           -          -             -             1,998            375    2,373                                    2,091 5d.0              TOTAL PERIOD 5d COST                               -                  95            -           -        346   2,303            513    3,257           -         -                 17         -        -        103            -                   429    2,499            557    3,588           3,228           -        2,091 PERIOD 5e - ISFSI Decontamination

Humboldt Bay Power Plant Unit 3                                                                                                                     Humboldt Bay Power Plant, Unit 3                                                                                                                                                Enclosure 3 Decommissioning Cost Study                                                                                                                                                                                                                                                                                         PG&E Letter HBL-11-003 TLG Services, Inc., Appendix D AREA-BY -AREA ESTIMATE                                                                                                                                                        Page 7 of 7 Thousands of 2008 Dollars                                                                                                          Thousands of 2011 Dollars Off-Site     LLRW                                                                                                                 Off-Site     LLRW                                        Burial I               Utility and Activity                                                          Decon   Removal   Packaging   Transport   Processing   Disposal  Other       Total         Total Class A  Class B  Class C   GTCC    Decon   Removal   Packaging Transport  Processing   Disposal   Other       Total       Total    Processed      Craft    Contractor Index                             Activity Description           Cost    Cost       Costs       Costs       Costs       Costs    Costs    Contingency     Costs  Cu. Feet Cu. Feet Cu. Feet Cu. Feet  Cost    Cost       Costs     Costs      Costs       Costs     Costs    Contingency   Costs      Wt., lbs. Manhours   Manhours I
Period 5e Additional Costs Se.2.1           ISFSI Decontamination                                     -         S           0           2            -         10   1,169           231    1,417       116        -        -        -      -         6          0         2            -         13    1,268           250    1,539        10,376      1,270         2,S60 Se.2             Subtotal Period 5e Additional Costs                       -         S           0           2                      10   1,169           231    1,417       116        -        -        -      -         6          0         2            -         13    1,268           2S0    1,539        10,376      1,270         2,S60 Period 5e Collateral Costs Se.3.1         ISmail tool allowance                                       -         0                                    -          -                     0        0         -        -        -        -      -         0          -         -            -           -       -             0         0                       -
Se.3             Subtotal Period 5e Collateral Costs                       -         0                                               -                     0        0         -        -        -        -      -         0          -         -            -           -       -             0         0                       -
I Period 5e Period-Dependent Costs Se.4.1           Insurance                                                           -                                    -          -      23             3       26         -        -        -        -      -         -          -         -            -           -      2S             3       29              -         -
Se.4.2           Property taxes                                            -         -                       -            -          -        -             -        -                 -        -        -      -         -          -         -            -           -       -             -                       -         -             -
Se.4.3           Heavy equipment rental                                    -       118                                    -          -        -           23      141                  -        -        -      -       128          -         -            -           -       -            25      153              -         -             -
5e.4.4           Plant energy budget                                       -         -                                    -          -        -                      -        -        -        -        -      -         -          -         -            -           -       -             -                       -         -             -
5e.4.5           Security Staff Cost                                       -         -                       -            -                877           169    1,046                  -        -        -      -         -                    -            -           -     9S2           183    1,135              -         -       17,680 Se.4.6           DOC Staff Cost                                            -         -                       -                       -      17             3       21                           -        -      -         -          -                      -           -      19             4       22                        -           170 Se.4.7           Utility Staff Cost                                        -         -                       -            -                 95            18      114                  -        -        -      -         -          -         -            -           -     103            20      123                        -         1,360 Se.4.            Subtotal Period 5e Period-Dependent Costs                         118                                    -          -   1,013           216    1,347                  -        -        -      -       128          -         -            -           -   1,099           235    1,462                        -       19,210 Se.O             TOTAL PERIOD Se COST                                      -       124           0           2            -         10   2,181           447    2,764       116        -        -        -      -       134          0         2            -         13    2,367           485    3,001        10,376      1,270       21,770 PERIOD 5f -ISFSI Site Restoration Period 5f Additional Costs 5f.2.1         IiSFSI Demolition                                                   270                                                      48            61      380         -        -                 -       -      293                                 -           -      52            67      412              -     2,643           160 Sf.2             Subtotal Period 5f Additional Costs                        -      270                        -           -          -      48            61      380         -        -        -        -      -       293                                 -           -      S2            67      412                    2,643           160 Period 5f Collateral Costs 5f.3.1         ISmail tool allowance                                        -        3           -            -                      -        -            1        3         -        -        -        -      -         3                                 -           -        -            1         4             -         -             -
5f.3             Subtotal Period Sf Collateral Costs                        -        3           -            -           -                                1        3         -        -        -        -      -         3                    -            -           -        -            1         4             -         -             -
I Period 5f Period-Dependent Costs 5f.4.1           Insurance                                                  -         -                       -           -          -        -             -        -        -        -        -        -      -          -         -         -            -           -        -             -                      -          -             -
5f.4.2           Property taxes                                                       -          -            -                      -                      -        -                 -        -        -       -         -                   -            -           -        -                       -                       -             -
5f.4.3           Heavy equipment rental                                             61           -            -                                           12       73         -        -        -        -      -        66                    -            -           -        -           13       79                         -
Sf.4.4           Plant energy budget                                        -                                                                               -        -        -        -        -        -                 -                                -           -        -             -                                -              -
Sf.4.S           Security Staff Cost                                        -                                 -           -          -     492            9S      S87         -        -        -        -       -         -         -         -            -           -     S34           103      637                         -        9,360 Sf.4.6           DOC Staff Cost                                                                                                      -      10             2       12         -        -                 -      -                              -            -           -      11             2       13              -          -           90 Sf.4.7           Utility Staff Cost                                                   -                       -                             S4            10       64                  -        -        -      -          -                   -            -           -      58            11       69                         -          720 Sf.4             Subtotal Period 5f Period-Dependent Costs                          61                        -                            S55           119      735                  -                 -       -       66                    -            -           -     603           129      798                                10,170 Sf.O             TOTAL PERIOD Sf COST                                              334           -                                   -     604           181    1,119         -        -                 -      -       363                    -            -           -     655           196    1,214              -     2,643       10,330 PERIOD 5 TOTALS                                                             -      499          95         149                  1,756   21,432         4,686   28,618       116      384       96       17       -      542        103       185            -      2,181   23,256         5,085   31,353        27,654      4,019     278,099 TOTAL COST TO DECOMMISSION                                             2,214    41,837      7,830        9,774          566    76,487  277,452        83,598  499,759   655,237    3,083      566       17  2,403    45,399      8,496    12,142          703    95,020   301,069        90,714  555,946   44,053,592     400,805   2,245,933 TOTAL COST TO DECOMMISSION WITH 25% CONTINGENCY:                                         499,759   thousands of 2008 dollars TOTAL NRC LICENSE TERMINATION COST IS 84.3% OR                                           421,241    thousands of 2008 dollars SPENT FUEL MANAGEMENT COST IS 15.3% OR:                                                   76,647    thousands of 2008 dollars NON-NUCLEAR DEMOLITION COST IS 0.4% OR:                                                   1,871    thousands of 2008 dollars TOTAL Class A RADWASTE VOLUME BURIED:                                                    655,237    Cubic Feet TOTAL Class B & C RADWASTE VOLUME BURIED:                                                  3,648    Cubic Feet TOTAL GREATER THAN CLASS C RADWASTE VOLUME GENERATED:                                          17   Cubic Feet TOTAL CRAFT LABOR REQUIREMENTS:                                                         400,805    Man-hours End Notes:
nfa - indicates that this activity not charged as decommissioning expense.
a - indicates that this activity performed by decommissioning staff.
0- indicates that this value is less than 0.5 but is non-zero.
A cell containing" - " indicates a zero value.

Enclosure 4 PG&E Letter HBL-11-003 Humboldt Bay Power Plant Decommissioning Cash Flow (Estimated in 2011 Dollars)
(1 page)

Humboldt Bay Power Plant Unit 3                                                            Enclosure 4 Decommissioning Cash Flow (Note 1)                                               PG&E Letter HBL-11-003 (Estimated in 2011 Dollars)
ISFSI EngrlLicense Construction                                  Cummulative          Trust Account NRC Scope            Non-NRC Scope             Operation                                   Decommission             Funding (Radiological)        (Nonradiological)          (Note 1)                 Total                Estimate              (Note 2)
Year 1996           $1,678,452                                                           $1,678,452             $1,678,452 1997           $8,663,216                                                           $8,663,216           $10,341,669 1998           $5,573,757                                      $344,408             $5,918,165           $16,259,834 1999             $723,490                                    $2,281,454             $3,004,944           $19,264,778 2000               $85,241                                   $2,736,091             $2,821,331           $22,086,109 2001               $89,543                                     $398,012               $487,555           $22,573,664 2002             $994,127                                      $113,704             $1,107,831           $23,681,495 2003             $494,838                                    $2,539,476             $3,034,313           $26,715,809 2004             $491,070                                    $1,444,628             $1,935,698           $28,651,506 2005             $161,506                                    $1,671,769             $1,833,274           $30,484,781 2006           $1,073,612                                    $3,546,617             $4,620,229           $35,105,009 2007           $4,474,247                                    $9,240,172            $13,714,418           $48,819,428 2008          $12,590,383                                  $28,485,988             $41,076,371           $89,895,799 2009          $32,901,391                                    $3,179,956            $36,081,347          $125,977,145 2010          $56,957,494                                    $5,734,776            $62,692,270          $188,669,415          $188,669,415 2011          $76,343,508                                    $5,156,500            $81,500,008          $270,169,423 2012          $73,123,800                                    $4,776,200            $77,900,000          $348,069,423 2013         $81,958,000                $945,300             $4,776,200            $87,679,500          $435,748,923 2014          $41 ,272,700              $945,300             $4,776,200            $46,994,200          $482,743,123          $502,451,875 2015         $36,892,300                $140,600             $4,776,200            $41,809,100          $524,552,223 2016           $4,484,500                                    $4,776,200             $9,260,700          $533,812,923 2017                    $0                                   $4,776,200             $4,776,200          $538,589,123          $536,954,618 2018                     $0                                   $4,776,200             $4,776,200          $543,365,323 2019                    $0                                   $4,776,200             $4,776,200          $548,141 ,523 2020            $3,564,900                                    $4,239,100             $7,804,000          $555,945,523 TOTAL         $444,592,074              $2,031,200          $109,322,249           $555,945,523 Notes:
: 1. Cash Flow is based on construction of the Independent Spent Fuel Storage Installation (ISFSI) and Fuel removed from HBPP in 2020 (Assumes Department of Energy Used Fuel Repository opens 2020 allowing Humboldt Bay Power Plant (HBPP) Fuel to be shipped duri
: 2. Trust Account Value of $348.3 million is Expense Equivalent Liquidation Value (Includes Tax Break)
Market Value of Trust as of 12/2010 was $313.8 million, actual expended as of 12/2010 was $188.7 million.}}