ML15034A588

UHS Calculation/Lscs Design Analysis L-002457, Revision 8. Part 1 of 2

ML15034A588
Person / Time
Site:	LaSalle
Issue date:	01/23/2015
From:	Exelon Generation Co
To:	Office of Nuclear Reactor Regulation
Shared Package
ML15035A091	List: ML15034A588 ML15034A590 RS-15-009, Additional Response to Request for Additional Information Regarding Request to Withhold Information Related to the License Amendment Request to Revise Ultimate Heat Sink Temperature Limits
References
L-002457, Rev. 8
Download: ML15034A588 (471)

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{{#Wiki_filter:ATTACHMENT 2 UHS Calculation LSCS Design Analysis L-002457, Revision 8 October 2, 2013 (Non-Proprietary) 1,237 pages follow

CC-AA-103-1003 Revision 9 Page 7 of 11 ATTACHMENT 2 Owner's Acceptance Review Checklist for External Design Analyses Page la Design Analysis No.: L-002457 Rev: 8 No Question Instructions and Guidance Ye2 I No N/A 1 Do assumptions have All Assumptions should be stated in clear terms with enough YJ [Li sufficient documented justification to confirm that the assumption is conservative. rationale? For example, 1) the exact value of a particular parameter may not be known or that parameter may be known to vary over the range of conditions covered by the Calculation. It is appropriate to represent or bound the parameter with an assumed value. 2) The predicted performance of a specific piece of equipment in lieu of actual test data. It is appropriate to use the documented opinion/position of a recognized expert on that equipment to represent predicted equipment performance. Consideration should also be given as to any qualification testing that may be needed to validate the Assumptions. Ask yourself, would you provide more justification if you were performing this analysis? If yes, the rationale is likely incomplete. Are assumptions Ensure the documentation for source and rationale for the 2 compatible with the assumption supports the way the plant is currently or will be way the plant is operated post change and they are not in conflict with any operated and with the design parameters. If the Analysis purpose is to establish a licensing basis? new licensing basis, this question can be answered yes, if the assumption supports that new basis. 3 Do all unverified If there are unverified assumptions without a tracking El E-1 assumptions have a mechanism indicated, then create the tracking item either tracking and closure through an ATI or a work order attached to the implementing mechanism in place? WO. Due dates for these actions need to support verification prior to the analysis becoming operational or the resultant plant change being op authorized. 4 Do the design inputs The origin of the input, or the source should be identified and ,L El 0 have sufficient be readily retrievable within Exelon's documentation system. rationale? If not, then the source should be attached to the analysis. Ask yourself, would you provide more justification if you were performing this analysis? If yes, the rationale is likely incomplete. 5 Are design inputs The expectation is that an Exelon Engineer should be able to Z El correct and reasonable clearly understand which input parameters are critical to the with critical parameters outcome of the analysis. That is, what is the impact of a identified, if change in the parameter to the results of the analysis? If the appropriate? impact is large, then that parameter is critical. 6 Are design inputs Ensure the documentation for source and rationale for the 7] E compatible with the inputs supports the way the plant is currently or will be way the plant is operated post change and they are not in conflict with any - o operated and with the design parameters. licensing basis? I

CC-AA-309-1001 Revision 8 ATTACHMENT 1 Design Analysis Cover Sheet Paae I of I Design Analysis Last Page No. - Attachment P, Page P58 Analysis No.: L-002457 Revision: 8 Major [ Minor M

Title:

I LaSalle County Station Ultimate Heat Sink Analysis EC/ECR No.: 389270 Revision: 1 0 Station(s): 7 LaSalle County Station Component(s): Unit No.: 1 1, 2 Discipline: MEDC Descrip. Code/Keyword: ° M03 Safety/QA Class: Safety-Related System Code: 12 ZZ Structure: 13 N/A CONTROLLED DOCUMENT REFERENCES 5 Document No.: From/To Document No.: FromlTo L-001581 From L-002456 From L-001584 From L-001355 To 4 L-002 53 From / To Is this Design Analysis Safeguards Information? 11 Yes [E No o If yes, see SY-AA-101-106 Does this Design Analysis contain Unverified Assumptions? " Yes [] No M If yes, ATI/AR#: This Design Analysis SUPERCEDES: '° N/A in its entirety. Description of Revision (list changed pages when all pages of original analysis were not changed): 19 Revision 8 adds evaluation of the UHS transient analyses with an allowable plant intake temperature of 107°F at a power level of 3559 MWt. This calculation considers weather selection methodology from Rev. 2 of Regulatory Guide 1.27 and a more realistic heat load rejected to the UHS. Pages Added: J33-40, N19-20, 01-042. P1-P58 Pages Revised: 1-10, 13-35,16, J18, N1-N2, N4-N8, N11-N12, N16-N18 Pages Removed: None Main Body (62 total pages) + Att. A (22) + Att. B (358) + Att. C (16) + Aft. D (12) + Att. E (57) + Att. F (31) + Aft. G (72) + Att. H (344) + Aft. 1(22) + Aft. J (40) + Att. K (6) + Att. L (58) + Att. M (17) + Att. N (20) + Att. 0 (42) + Aft. P (58) = 1,237 total pages Preparer: Daniel W. Nevill (S&L) 6).* .t't 0o ouze Print Name Snqn Name Date Method of Review: 'Detailed Review E Alternate Calculat' ns (attached) Testing [] Reviewer: Paul J. Szymiczek (S&L) JL lO/,0joi05 10.."* Pant Name 1 aaData Review Notes: Independent review [ Peer review E - (Mo EaternalAnaya ny) External Approver: 2, Pawel Kut (S&L) _,._____--,_.O__ Pant Nam Sign Name Date Exelon Reviewer: &*s g _-_ 10/2,6  :ý Prnt Name SU tIignfNare Date Independent 3 rd Party Review Reqd? 1 Yes El No [ Exelon Approver: SLLv.-j_ i, I_, 3 Pant Name Sign Name Date

CC-AA-103-1003 Revision 9 Page 8 of 11 ATTACHMENT 2 Owner's Acceptance Review Checklist for External Design Analyses Page lb Design Analysis No.: L-002457 Rev: 8 No Question Instructions and Guidance YeI N /A 7 Are Engineering See Section 2.13 in CC-AA-309 for the attributes that are Li i Judgments clearly sufficient to justify Engineering Judgment. Ask yourself, documented and would you provide more justification if you were performing justified? this analysis? If yes, the rationale is likely incomplete. 8 Are Engineering Ensure the justification for the engineering judgment Judgments compatible supports the way the plant is currently or will be operated with the way the plant is post change and is not in conflict with any design operated and with the parameters. If the Analysis purpose is to establish a new licensing basis? licensing basis, then this question can be answered yes, if the judgment supports that new basis. 9 Do the results and Why was the analysis being performed? Does the stated Cz" [] El conclusions satisfy the purpose match the expectation from Exelon on the proposed purpose and objective of application of the results? If yes, then the analysis meets the Design Analysis? the needs of the contract. / 10 Are the results and Make sure that the results support the UFSAR defined conclusions compatible system design and operating conditions, or they support a with the way the plant is proposed change to those conditions. If the analysis operated and with the supports a change, are all of the other changing documents licensing basis? included on the cover sheet as impacted documents? 11 Have any limitations on Does the analysis support a temporary condition or / [ l the use of the results procedure change? Make sure that any other documents been identified and needing to be updated are included and clearly delineated in transmitted to the the design analysis. Make sure that the cover sheet appropriate includes the other documents where the results of this organizations? analysis provide the input. 12 Have margin impacts Make sure that the impacts to margin are clearly shown been identified and within the body of the analysis. If the analysis results in documented reduced margins ensure that this has been appropriately appropriately for any dispositioned in the EC being used to issue the analysis. negative impacts (Reference ER-AA-2007)? 13 Does the Design Are there sufficient documents included to support the E El Analysis include the sources of input, and other reference material that is not applicable design basis readily retrievable in Exelon controlled Documents? documentation? 14 Have all affected design Determine if sufficient searches have been performed to E" 0 analyses been identify any related analyses that need to be revised along documented on the with the base analysis. It may be necessary to perform Affected Documents List some basic searches to validate this. (ADL) for the associated Configuration Change? , 15 Do the sources of inputs Compare any referenced codes and standards to the current and analysis design basis and ensure that any differences are reconciled. methodology used meet If the input sources or analysis methodology are based on committed technical and an out-of-date methodology or code, additional reconciliation regulatory may be required if the site has since committed to a more requirements? recent code

CC-AA-103-1003 Revision 9 Page 9 of 11 ATTACHMENT 2 Owner's Acceptance Review Checklist for External Design Analyses Page Ic Design Analysis No.: L-002457 Rev: 8 No Question Instructions and Guidance Yes3,/No / N/A 16 Have vendor supporting Based on the risk assessment performed during the pre-job [] [] technical documents brief for the analysis (per HU-AA-1212), ensure that and references sufficient reviews of any supporting documents not provided (including GE DRFs) with the final analysis are performed. been reviewed when necessary? 17 Do operational limits Ensure the Tech Specs, Operating Procedures, etc. contain support assumptions operational limits that support the analysis assumptions and and inputs? inputs. Create an SFMS entry as required by CC-AA-4008. SFMS Number: '4 I2.. NOTE 1: LSCS IS CURRENTLY COMMITTED TO REV. 1 OF REGULATORY GUIDE (RG) 1.27 PER UFSAR REV. 19, APPENDIX B. PER LAR RAI DATED JUNE 27, 2013, THE NRC DEEMED USE OF REV. 2 TO RG 1.27 AS ESSENTIAL. EXELON REVIEWER: ("_--.*Ar'7& i*"2 10 ZZ/1 -3 DATE:_____ DATE: U

I CALCULATION NO. L-002457 REVISION NO. 8 PAGE NO. 2 1 CALCULATION TABLE OF CONTENTS SECTION: I PAGE NO. SUB-PAGE NO. COVER PAGE 1 OAR CHECKLIST la-ic TABLE OF CONTENTS 2 1.0 PURPOSE / OBJECTIVE 4 2.0 METHODOLOGY AND ACCEPTANCE CRITERIA 8 2.4 IDENTIFICATION OF COMPUTER PROGRAMS 16 3.0 ASSUMPTIONS / ENGINEERING JUDGEMENTS 17 4.0 DESIGN INPUTS 20

5.0 REFERENCES

22 6.0 NUMERIC ANALYSIS 24 7.0 RESULTS AND CONCLUSIONS 28 (Page 59 - FINAL PAGE of Main Body) ATTACHMENTS PAGES Attachment A - UHSAVG Files Al -A22 Attachment B - LAKET-PC Output BI -1B358 Attachment C - EXCEL Formulas CI -C16 Attachment D - Attached References D1 -D12 Attachment E - UHS Historical Operability El - E57 Attachment F - LAKET-PC Plot Data F1 - F31 Attachment G - LAKET-PC Analysis with Revised Decay Heat G 1 - G72 Ratios and Increased Initial Lake Temperature Attachment H - LAKET-PC Analysis with Increased Plant Inlet HI - H344 Temperature Requirement Attachment I - LAKET-PC Analysis for MUR PU and EPU 11-122 PROJECT NO. 11333-297 1

REVISION NO. 8 I CALCULATION NO. L-002457 PAGENO.3I Attachment J - UHS Flow Path Analysis J -J40 Attachment K - Preparation of Hourly Meteorological Data K1-K6 Attachment L - Plant Temperature Rise L1-L58 Attachment M - Weather File Creation M1-M17 Attachment N - LAKET Validation Nl-N20 Attachment 0 - LAKET-PC Analysis for Rev. 2 of Reg. Guide 1.27 01-042 Attachment P - Plant Temperature Rise for Rev. 8 P1-P58 i a I PROJECT NO. 11333-2971

CALCULATION NO. L-002457 REVISION NO. 8 PAGE NO.4 1.0 PURPOSE/OBJECTIVE The purpose of this calculation is to analyze the performance of the LaSalle County Station Ultimate Heat Sink (UHS). The calculation determines the design basis UHS performance for 30 days following an accident. The lake dike is assumed to have failed, Unit I is postulated to undergo a loss of coolant accident (LOCA) with loss of off-site power (LOOP), while Unit 2 undergoes normal shutdown. Worst-case weather conditions apply and no makeup water is credited. The S&L LAKET-PC computer program was utilized to determine the combined impact of power uprate and allowable sediment accumulation in the UHS. It was also used to perform analysis of maximum allowable initial UHS temperature to meet required UHS outlet temperatures. 1.1 Historical Analyses This calculation has undergone a number of revisions to address various issues as they have arisen. Certain information from previous revisions has been retained for information or convenience. Some of this information is historical but no longer represents design information. The assembly of the calculation writeup is as follows:

    "    Main Body - The main body of the calculation was essentially re-written and formatted in Rev. 5 issue, The main body of Rev. 5 is revised in Rev. 6 to add new cases for 12" sediment level. For Rev. 7, the main body is revised to include new cases for extended power uprate (EPU) at a maximum plant intake temperature of 104'F and 107'F and the latest weather data. In Rev. 8, the main body is revised to incorporate new analysis for a more realistic heat load rejected to the UHS and Rev. 2 of Reg. Guide 1.27.
    " Attachment A - This attachment provides results of computer analysis of the approximately 50 years of weather data used in the analysis. The computer program UHS-AVG is used to select limiting weather periods for peak lake temperature and maximum evaporation. The method of selecting the limiting data and actual data is common to all revisions of the calculation up to Rev. 6. Selection of weather data for Rev. 7 is documented in Attachment M. Selection of weather data for Rev. 8 is documented in Attachment 0.
    " Attachment B - This attachment provides LAKET analysis results for the Rev. 3 issue of the calculation. This analysis supports limiting UHS temperatures of I00°F.

• Attachment C - This attachment provides Excel spreadsheets and formulas used in computing (a)

UHS area and volumes, and (b) CSCS temperature rise across the plant for the Rev. 3 calculation. The CSCS temperature rise across the plant is revised in Rev. 7 and documented in Attachment L. The CSCS temperature rise across the plant is further revised in Rev. 8 and documented in Attachment P.

• Attachment D - This attachment provides attached references.
• Attachment E - This attachment provides an operability evaluation performed as a part of the Rev. 2 calculation.
• Attachment F - This attachment provides LAKET plot data used in Rev. 3.
• Attachment G - This attachment provides LAKET analysis of Rev. 4. This analysis supports limiting UHS temperature of 102 OF.

PROJECT NO. 11333-297

CALCULATION NO. L-002457 REVISION NO. 8 PAGE NO. 5

• Attachment H - This attachment provides the LAKET analysis of Rev. 5. This analysis supports limiting UHS temperatures of 104 'F. Attachment H is revised in Rev. 6 to support 3 additional cases for 12" sediment level.

    "    Attachment I - This attachment provides the LAKET analysis of Rev. 7. This analysis supports limiting UHS temperatures of 107'F at Measurement Uncertainty Recapture Power Uprate (MUR PU) (3559 MW,) and EPU (4067 MW,) using Rev. 1 of Reg. Guide 1.27. Please note that the EPU cases do not represent current design basis since EPU was cancelled.

• Attachment J - This attachment is added in Rev. 7 to document the determination of the effective area and effective volume of the UHS. Rev. 8 includes additional information.
• Attachment K - This attachment is added in Rev. 7 to document the preparation of a new set of weather data using data from LaSalle Station and Peoria, IL from 1/1/1995 to 9/30/20 10.

    "    Attachtnent L - This attachment is added in Rev. 7 to document calculation of the plant temperature rise at MUR PU and EPU power levels. Please note that the EPU cases do not represent current design basis since EPU was cancelled.
    "    Attachment M - This attachment is added in Rev. 7 to document creation of the worst weather and worst net evaporation LAKET weather files.
    "    Attachment N - This attachment is added in Rev. 7 to document validation of the LAKET computer program through comparison to NUREG-0693. In Rev. 8, analysis of the UHS stratification is added to this attachment.

• Attachment 0 - This attachment provides the LAKET analysis of Rev. 8. This analysis incorporates more realistic heat loads rejected to the UHS as developed in Rev. 4 of L-002453 [Ref. 5.8d] and supports limiting UHS temperatures of 107 0 F at MUR PU (3559 MW,) using Rev. 2 of Regulatory Guide 1.27.
• Attachment P - This attachment is added in Rev. 8 to document calculation of the plant temperature rise at MUR PU (3559 MW,) power levels using the more realistic heat loads developed in Rev. 4 of L-002453 [Ref. 5.8d].

Most of the information in these appendices represents historical analysis and no longer serves as the design basis, However, some information, such as the geometry for the UHS (area and volume versus siltation) is still retained as design input for the current analysis. 1.2 Design Analysis for 102'F Inlet Temperature Limit In the Rev. 4 calculation, two issues were addressed:

    "    The allowable maximum plant inlet temperature was raised to 102 0F and maximum initial UHS temperatures were determined based on the new limit.
    "    Core decay heat was increased to include contributions for additional actinides and activation products as documented in a separate calculation [Ref. 5.8].

The supporting analysis for these changes is documented in Appendix G. PROJECT NO. 11333-297I

CALCULATION NO. L-002457 REVISION NO. 8 PAGE NO. 6 1.3 Design Analysis for 104'F Inlet Temperature Limit The Rev. 5 calculation addresses:

    " An increase in the allowable maximum plant inlet temperature to 104'F

• Attachment H documents this analysis and determines the maximum initial UHS temperature for a plant inlet temperature limit of 104'F. Several different test case scenarios were evaluated and the maximum initial UHS temperature allowed was determined for each. In addition, Appendix H also documents the following:
• The Attachment H analyses use a new version of the LAKET software, although the underlying algorithms are unchanged. Test cases were run with the new code to confirm matching results from the previous version.
• In addition, a new evaporation case was run with the new limiting initial temperature to confirm there is adequate inventory.
• Finally, it was confirmed and documented that the previous design basis for CSCS heat load includes a conservative modeling of pump heat and single failure assumptions.

The Rev. 6 calculation addresses: Incorporation of minor Rev. 5A into the main body of the report. In Rev 5A, the UHS requirement for use of fire water during accident and transient conditions was revised from 132,000 gals to 440,400 gals. This was incorporated into Assumption 3.7, UHS Inventory for Fire-Fighting. The addition of three (3) new cases to evaluate the maximum initial lake temperature and evaporation based on 12 inches of sedimentation to the cases presented in Rev. 5 based on existing maximum plant inlet temperature of 104'F. The main body and Attachment H are revised to support the analyses of these new cases. 1.4 Design Analysis for 1041F and 1071F Inlet Temperature Limit Using Latest Weather Data up to September 2010 The Rev. 7 calculation addresses:

• An allowable maximum plant inlet temperature of 104'F and an increase in the allowable maximum plant inlet temperature to 107'F for both MUR PU and EPU.
• Addition of new weather data from LaSalle Station from January 1, 1995 to September 30, 2010.

    " New determination of effective area and effective volume as a percentage of the total UHS area and total UHS volume.
    " Incorporation of the UHS requirement for use of fire water during accident and transient conditions of 440,400 gallons. In previous revisions, this had been deemed insignificant in an assumption. For this revision the assumption has been removed, and the 440,400 gallons is removed immediately following the postulated accident.

• Increased core decay heat as a result of EPU.

    " Incorporation of spent fuel pool makeup flow from the UHS (600 gpm).

PROJECT NO. 11333-297

I CALCULATION NO. L-002457 REVISION NO. 8 PAGE NO. 7 1 I 1.5 Design Analysis for 107'F Inlet Temperature using Revised Rejected Heat Load to the UHS The Rev. 8 calculation addresses:

• A revised plant temperature rise calculation (see Attaclunent P) based on more realistic heat loads rejected to the UHS as developed in L-002453 [Ref. 5.8d].
• A revised methodology for selection of weather data based on Rev. 2 of Regulatory Guide 1.27 [Ref.

5.2].

• Removal of spent fuel pool makeup flow from the UHS (600 gpm).

1.6 Classification, etc. This calculation is safety related. This mechanical calculation provides an unsteady thermal model that is used to determine the capacity of the LaSalle Station ultimate heat sink (UHS), a safety related structure. Description Code: M03 (mechanical system capacity calculation) System Code: ZZ I PROJECT NO. 11333-297 1I

CALCULATION NO. L-002457 REVISION NO. 8 PAGE NO. 8 2.0 METHODOLOGY AND ACCEPTANCE CRITERIA This calculation determines the maximum allowable initial lake temperature that would support the 107 0F CSCS maximum intake temperature limit for response to a postulated LOCA concurrent with the failure of the lake dike. The maximum allowable lake temperature is determined for average sediment accumulations of 0, 6, 12, and 18 inches. (Other analyses supporting lower CSCS maximum intake temperatures are also documented as described in Section 1). 2.1 Methodology The method of analysis used in this calculation conforms to the position described in U.S. Atomic Energy Commission Regulatory Guide 1.27, "Ultimate Heat Sink for Nuclear Power Plants", Revision 1 [Ref. 5.2]. The LaSalle Station is licensed to this version of the Reg. Guide. The USNRC has also issued a revision to this Reg. Guide (Rev. 2) to address Ultimate Heat Sinks with different configurations than the base configuration inherently assumed in the approach to modeling weather data per the Rev. 1 guide. In particular, the Rev. 2 guide addresses UHS designs with larger inventories with a transit time on the order of five days. The LaSalle UHS has a transit time of approximately one to two days. Analysis to Rev. 2 of the Reg. Guide [Ref. 5.2] was added in Rev. 5 and Rev. 6 of this calculation to conservatively supplement the design analysis per Rev. 1. Rev. 7 analysis only considers the methodology given in Rev. 1 of the Reg. Guide [Ref. 5.2]. Rev. 8 analysis uses the methodology of Rev. 2 of the Reg. Guide [Ref. 5.2] by considering the worst weather periods corresponding to the transit time of the UHS when selecting weather data. Using this guidance, the worst synthetic weather period is assembled and used to analyze the transient temperature performance of the UHS using the LAKET computer program. For the selected time periods, the weather data is comprised of dry bulb temperature, humidity, wind speed, cloud cover, rainfall, and solar radiation variables that give rise to maximum water temperatures. Similarly, the consecutive 30-day maximum evaporation weather period is also evaluated to determine the impact of water inventory loss on UHS performance. 2.1.1 Selection of Weather Data following R.G. 1.27, Rev. 1 (Peak Temperature) Up to Revision 6 - R.G. 1.27, Rev. I guidance requires synthesis of the worst 31 day (worst 1-day + worst 30 consecutive days) weather period. The UHSAVG program [Ref. 5.7] is used to determine the worst I day and 30 day temperature periods. The weather data file contains weather station data from Peoria, IL and Springfield, IL for the dates between July 4, 1948 through June 30, 1996. The binary weather data file (pslsw-2.bin) for this historical worst weather period is documented in Appendix A of calculation L-001581, Rev. 0 [Ref. 5.4]. From the new, expanded weather data set, the worst single day is now July 15 to 16, 1995 while the worst thirty day period is from July 10, 1983 to August 9, 1983. Revision 7 - The methodology used to determine the worst 1 day and 30 day temperature periods is documented in Attachment M. The worst weather is determined from two different weather files. The first weather data file considered is the one used in previous revisions of this calculation including weather station data from Peoria, IL and Springfield, IL for the dates between July 4, 1948 through June 30, 1996. The second weather data file contains weather station data from LaSalle Station and Peoria, IL from January 1, 1995 to September 30, 2010. The worst single day is determined to be July 24, 2001 7:00AM to PROJECT NO. 11333-297

CALCULATION NO. L-002457 REVISION NO. 8 PAGE NO. 9 July 25, 2001 6:00AM while the worst thirty day period is from July 21, 1995 4:00PM to August 20, 1995 3:00PM. Revision 8 - Weather data selection following R.G. 1.27, Rev. 1 is not considered in this revision. 2.1.2 Selection of Weather Data following R.G. 1.27, Rev. 2 (Peak Temperature) Up to Revision 7 - Selection of weather data following Reg. Guide (R.G.) 1.27, Rev. 2 is used for Rev. 5 and Rev. 6 of this calc. New selection of weather data for this Reg. Guide was not done for Rev. 7. The UHSAVG program [Ref. 5.7] is used to determine the worst 5 consecutive days, worst 1 day, and worst 30 consecutive days temperature period. The weather data file contains weather station data from Peoria, IL and Springfield, IL for the dates between July 4, 1948 through June 30, 1996. The worst 36-day period is documented in Attachment A of this calculation. The worst five day period is from July 12, 1995 to July 17, 1995. The worst one day and thirty day periods are the same as identified in Section 2.1.1. Revision 8 - R.G. 1.27 Rev. 2 requires weather data selected based on the worst weather over the UHS transit time, the worst one day weather, and the worst 30 day weather. Alternatively, the worst consecutive day weather over a time period equal to the UHS transit time plus one day plus 30 days may be considered. This revision considers both alternatives. The selection of weather data from LaSalle Station and Peoria, IL from January 1, 1995 to September 30, 2010 based on the R.G. 1.27 Rev 2 methodology is documented in Section 06.4 of Attachment 0. 2.1.3 Selection of Weather Data following R.G. 1.27, Rev. I (Peak Evanoration) Guidance for selecting weather data for use in computing peak UHS evaporation over a thirty day period is based on R.G. 1.27, Rev. 1, although requirements from Rev. 2 are virtually the same. The limiting evaporation period is from June 18, 1954 to July 18, 1954. Additional information is provided in Attachment A of this calculation. Following the addition of the new weather data (LaSalle Station and Peoria, IL weather data from 1/1/1995 to 9/30/2010) it was confirmed that the limiting evaporation period from June 18, 1954 to July 18, 1954 remains the limiting evaporation period. See Attachment M for documentation of this analysis. 2.1.4 Plant Heat Load to the UHS The heat load to the UHS is documented in a separate calculation [Ref. 5.8]. This data is interpolated to fit the one-hour (three-hour up to Rev. 6) time increments required by LAKET. The CSCS temperature rise data for each one-hour (three-hour up to Rev. 6) increment is based on this heat load and computed and listed in Attachment P of this calculation. Attachment L calculated the CSCS temperature rise for EPU based on previous revision of the plant heat load calculation, L-002453 [Ref. 5.8]. It is not used in Rev. 8, but is kept for historical purposes. 2.1.5 UHS Surface and Volume Data The approximate surface area and volume of the UHS for different postulated sediment accumulations is determined using the methodology documented in Appendix B of calculation L-001581, Rev. 0 [Ref. 5.4]. The UHS surface area and volume are provided in Table 7.1. The effective area and effective volume of the UHS are determined in Attachment J. I PROJECT NO. 11333-297 1I

I CALCULATION NO. L-002457 REVISION NO. 8 PAGE NO. 10 1 1 2.1.6 CSCS Temperature Rise The temperature rise through the plant is used in LAKET-PC to compute the rise in water temperature caused by the heat rejected to the UHS during the postulated accident. It is determined by the following: AT = Q/ (cp x m) where: AT = plant temperature rise, [OF] Q = heat rejection to the UHS, [Btu/hr] co =specific heat of water, [Btu/(lb-0 F)] m = mass flow rate of water, [lb/hr] The mass flow rate is determined from the CSCS volumetric flow rate in cfs: m = 86.0 ft3/sec x 3600 sec/hr x 62.02 lb/ft3 = 19,201,392 ibm/hr (Up to Rev. 6) in = 86.0 ft3/sec x 3600 sec/hr x 62.00 lb/ft3 = 19,195,200 Ibm/hr (Rev. 7 and 8) m = 65.3 ft3/sec x 3600 sec/hr x 62.00 lb/ft3 = 14,574,960 ibm/hr (Rev. 8) The time increment for much of the weather data is three hours (one hour for Revisions 7 and 8). Since the temperature of the UHS does not change significantly over a three hour (or one hour) time period, it is sufficiently accurate to apply this time increment to calculate the average temperature rise for each time step. 2.1.7 UHS Analysis for a 102`F Plant Inlet Temperature Linit Attachment G evaluates the ability of the UHS to maintain the plant inlet temperature below 102'F for the worst 31-day transient and worst 36-day transient analyses. The following cases are run as part of Attachment G: Revision 4 (seeAttachment G) Start Weather Sediment Case Time Level (in.) Methodology Design Criteria Data Tssme niLevelS empinI0°F 1 09:00 1/30 0 Reg. Guide 1.27, Rev. 1 Assume Initial UHS Temp = 100*F; Verify Plant Inlet Temp*_ 102.0°F Assume Initial UHS Temp = 100°F; 2 09:00 5/1/30 6 Reg. Guide 1.27. Rev. 2 Verify Plant Inlet Temp _ 102.0°F 3 Assume Initial Ine UHSTemp Temp == 0 100°F; 18 Reg. Guide 1.27, Rev. 1 V e Pnt 100 F 3 09:00 1/30 sVerfy Plant Inlet Temp _ 102.0°F 4 06:00 1/30 18 Reg. Guide 1.27, Rev. 1 Verify Plant Inlet Temp = 102.0°F 2.1.8 UHS Analysis for a 104°F Plant Inlet Temperature Limit Attachment H evaluates the ability of the UHS to maintain the plant inlet temperature below 104'F for the worst 31-day transient, worst 36-day transient, and also documents the worst 30-day evaporation period analyses. There are total 9 cases in Rev. 5 and 3 cases in Rev. 6. All 12 cases are included as part of I PROJECT NO. 11333-297 II

I CALCULATION NO. L-002457 REVISION NO. 8 PAGE NO. 11 11 O 1 1 IICLUAINN.L025 EIINN.8PG Attachment H and summarized below: Revision 5 (see Attachment H)_ [ Case r Weather Data Sediment Level (in.) Methodology Design Criteria Ica 09:00 Si 1130 r 1[ 0 JReg. Guide 1.27, Rev. 1]j ~Requires Maximize Plant UHS Temp; Initial Inlet Temp; 0.O Temp *14. 2a 09:00 1/30 6 Reg. Guide 1.27, Rev. 1 Requires Plant Inlet Temp

• 104.00F 3a 09:00 1/30 18 Reg. Guide 1.27, Rev. 1 Maximize Initial UHS Temp; lb . - Requires Plant Inlet Temp _ 104.0°F a09:00 1 /1/30 0d 18 1 Maximize Initial UHS Temp; Requires Plant Inlet Temp _ 104.0°F 09:00 6 Reg. Guide 1.27. Rev. 2 Maximize Initial UHS Temp; IJ 2blb_ 09:00 511130_ _ 0 Reg.___

Guide__ 1.27._R. _ Requires Plant Inlet Temp < 104.0°F Maximize Initial UHS Temp; 3b 09:00 1 5/1/30 18 Reg. Guide 1.27. Rev. 2 Requires Plant Inlet Temp < 104.0°F Worst 30-day 0 Reg. Guide 1.27. Rev. 1 Use limiting initial temperature from Evaporation 0 Case la or lb Worst 30-day Use limiting initial temperature from 6 Reg. Guide 1.27. Rev. 1 Evaporation Case 2a or 2b Worst 30-day Use limiting initial temperature from Evaporation 18 Reg. Guide 1.27. Rev. 1 Case l a t u fo LAKET-PC [Ref. 5.1d] and UHSAVG [Ref. 5.7] are filed and documented in the Sargent & Lundy Computer Software Library. UHS model runs were performed on PC Nos. 5121 and 5407 via network server SNLI for Rev. 5. Revision 6 - Revision 6 of this calculation utilizes the same methodology Rev. 5 and is presented in Attachment H. Additional cases 4a, 4b and 4c were run to find the maximum initial UHS temperature for a sediment level of 12 inches. Revision6 see Attachment -t_ Case Start Weather Data Sediment Methodology Design Criteria Time Level (In.) Maximize Initial UHS Temp; 4a 09:00 1/30 12 Reg. Guide 1.27, Rev. 1 Require Inlet Temp; I Requires Plant Inlet Temp _< 104.0°F Maximize Initial UHS Temp; Temp; 4b 09:00 5/1/30 12 Reg. Guide 1.27. Rev. 2 Require Inlet Requires Plant Inlet Temp _<104.0°F 4c 09:00 Worstion 12 Reg. Guide 1.27. R U se limiting initial temperature from Evaporation 12 Rg ud .7 e.ICase 4a or 4b. LAKET-PC [Ref. 5.1 d] is filed and documented in the Sargent & Lundy Computer Software Library. UHS model runs were performed on PC No. ZL4578 for Rev. 6. PROJECT NO. 11333-297

REVISION NO. 8 PAGE NO. 12 1 i CALCULATION NO. L-002457 2.1.9 UHS Analysis for a 104'F and 107'F Plant Inlet Temperature Limit at MUR PU and EPU Attachment I evaluates the ability of the UHS to maintain the plant inlet temperature below 104'F or 107'F for the worst 3 1-day transient and also documents the worst 30-day evaporation period analyses. The cases are run for both MUR PU and EPU power levels, and all cases use the Reg. Guide 1.27, Rev. I methodology. All cases are included as part of Attachment I and summarized below: Revision '7 (see Attachment Case ta Weather D Power Level Sediment Design Criteria Time __WeatherData (MW') Level (in.) DesignCriteria

                                                                                             , Maximize Initial UHS Temp; la            6:00                 1/30           4067 (EPU)             0      Requires Plant Inlet Temp *_ 107.0°F la 104F          6:00                 1/30           4067 (EPU)             0      Maximize Initial UHS Temp; (EU)Requires                     Plant Inlet Temp _ 104.0°F Maximize Initial UHS Temp; la_MUR           6:00                 1/30      1 3559 (MUR PU)             0      Maxime       InlUH Temp;

_Requires Plant Inlet Temp:* 107.0 0 F

                                                                                             , Maximize Initial UHS Temp; laMUR_104F           6:00                 1/30        3559 (MUR PU)             0      Requires Plant Inlet Temp _<104.0°F 2a            6:00

__________ 1/0Maximize 1/30___ 4067 (EPU) , 6 Requires Plant UHSTemp Initial Inlet Temp;< 107.0°F 2a 6:00 1/30 4067 (EPU) 6 Maximize Initial UHS

               -4                      I                                       IRequires Plant Inlet Temp _ 104.0°F

____+ 2Maximize__- -- __ ------ Initial UHS Temp; 2aMUR 6:00 1/30 3559 (MUR PU) 6 Requires Plant Inlet Temp _ 104.0°F Maximize Initial UHS Temp; 2a_3MUR104F 6:00 1/30 3559 (MUR PU) 6 Maximize Initial UHS Temp; 2a-MR 6:01/0 359 (UR P) 6 107.01F Requires Plant Inlet Temp *_ 104.0°F Maximize Initial UHS Temp; 3a_12am 0:00 1/30 4067 (EPU) 18 Requires Plant Inlet Temp

• 107.01F Requires Plant Inlet Temp _<107.0°F 3a_3am 9:00 1/30 4067 (EPU) 18 Mxmz nta UHS ep H Temp; Maximize Initial Requires Plant Inlet Temp _ 107.0°F Maximize Initial UHS Temp; 3a..~pm 12:0 130 467 EPU 18 Requires Plant Inlet Temp !* 107.0 0 F 3a_3pm 15:00 1/30 4067 (EPU) 18 Maximize Initial UHS Temp; Requires Plant Inlet Temp _ 107.0°F Maximize Initial UHS Temp; Requires Plant Inlet Temp _<107.0°F Maximize Initial UHS Temp; Requires Plant Inlet Temp _ 107.0°F 3a_1 04F 6:00 1/30 4067 (EPU) 18 Maximize Initial UHS Temp;

_104.0°F Requires Plant Inlet Temp PROJECT NO. 11333-297

I CALCULATION NO. L-002457 REVISION NO. 8 PAGE NO. 13 II I Start Power Level Sediment Time (MWt) Level (in.) Design Criteria 3aMUR 6:00 1/30 3559 (MUR PU) 18 Maximize Initial UHS Temp; Requires Plant Inlet Temp _107.0°F 3a_MUR_104F 6:00 1/30 3559 (MUR PU) 18 Maximize Initial UHS Temp; Requires Plant Inlet Temp _ 104.0°F 4 Maximize Initial UHS Temp: 4a 6:00 1/30 4067 (EPU) 12 Requires Plant Inlet Temp _ 107.00 F Maximize Initial UHS Temp; 4a_104F 1 6:00 1/30 4067 (EPU) 12 Requires Plant Inlet Temp _<104.0°F 4aMUR 6:00 1/30 12 Maximize Initial UHS Temp; 0 3559(MUR PU) Requires Plant Inlet Temp* 107.0°F 4a 104F 6:00 19 P 12 Maximize Initial UHS Temp; 1/30 3559 (MUR Requires Plant Inlet Temp _ 104.0 0F Maximi0:00nWorstUH30-day 1 C;:0 ort Evaporation 406 (EPU) 4067 ,EU 0 Use limiting LAKET input initial temperature from Case 1la 2c 0:0i Worst 30-day 4067 (EPU) 6 Use limiting LAKET input initial ________ ____ Eaoaio 0Evaporation _____ temperature from Case 2a ____________________1 3c 0:00 I Worst 30-day 4067 (EPU) 18 Use limiting LAKET input initial

                             -        Evaporation                                           temperature from Case 3a Wort 0-ayUse                                                limiting LAKET input initial 4c:0:00     Worst
                                  *4067    30-day(EU Evaporation               (EPU)           12        IUsliiigLKTiptntal!

temperature from Case 4a Worst 30-day Use limiting LAKET input initial Evaporation temperature from Case 1a_104F l_MUR 0:00 Worst 30dy 30-day 3559 (MUR PU) 0 Use limiting LAKET ael tmeauefo U input initial Evaporation temperature from Case laMUR 1cMUR_104F 0:00 Worst 30-day 3559 (MUR PU) 0 Use limiting LAKET input initial Evaporation temperature from Case laMUR_104F 2.1.10 UHS Analysis for a 107 0 F Plant Inlet Temperature Limit at MUR PU Attachment 0 evaluates the ability of the UHS to maintain the plant inlet temperature below 107 0 F for the worst 33 consecutive day transient and also documents the worst 30-day evaporation period analyses. The cases are run for MUR PU power levels, and all cases use the Reg. Guide 1.27, Rev. 2 methodology. All cases are included as part of Attachment 0 and summarized below: Revision 8 (see Attachment 0)_ Power Level Sediment Case Weather Data (MW) Level (in.) Design Criteria Case la1 2AM 33 3559 (MUR PU) 0 Initial UHS Temp equal to TS Limit; s aRequires Plant Inlet Temp _<107.0°F s 1Initial UHS Temp equal to TS Limit; Case Ia_3AM 33 3559 (MUR PU) 0 Requires Plant Inlet Temp < 107.0°F IPROJECT NO. 11333-297 1I

I CALCULATION NO. L-002457 REVISION NO. 8 PAGE NO. 14 1 Power Level Sediment Case We ather Data Design Criteria (MWt) Level (in.) Case I a_6AM 33 ___________Requires 13559 (MUR PU) 0 Initial UHS Temp equal to TS Limit; Plant Inlet Temp:* 107.00 F Case la_6AM 33 3559 Initial UHS Temp equal to TS Limit; Requires Plant Inlet Temp _ 107.0°F SCase la_12PM I 33 3559 (MUR PU) 0 1Initial UHS Temp equal to TS Limit; Requires Plant Inlet Temp _ 107.00 F Case a_3PM 33 3559 (MUR PU) 0 Initial UHS Temp equal to TS Limit; Case 1a_6PM 33 3559 (MUR PU) 0 Initial UHS Temp equal to TS Limit; _ Requires Plant Inlet Temp < 107.0-F Case la_3PM 33 (MUR _3Requires PU) _3559 0 Initial UHS Temp equal to TS Limit; Plant Inlet Temp < 107.0°F I Initial UHS Temp equal to TS Limit; Casela_12AM 1 33 3559 (MUR PU) 6 Requires Plant Inlet Temp < 107.0°F Cae 2 Initial UHS Temp equal to TS Limit; Case2a_3AM 33 3559 (MUR PU) 6

                                                ,                                   Requires Plant Inlet Temp < 107.0°F aInitial                                    UHS Temp equal to TS Limit;
       ~Case   2a6M      t           33~           3559    ___R            6 C Requires Plant Inlet Temp < 107.0°F Initial UHS Temp equal to TS Limit; Case 2a_9AM                 33            3559 (MUR PU)           6        Requires Plant Inlet Temp < 107.0°F Case 2a_9APM                33         I3559 (MUR PU)             6        Initial UHS Temp equal to TS Limit; C3Requires                                       Plant Inlet Temp _ 107.0°F Case 2a_12PM                33            3559 (MUR PU)           6 Initial UHS Temp equal to TS Limit; Requires Plant Inlet Temp < 107.0°F Initial UHS Temp equal to TS Limit; Case 2a_PM                  33            3559 (MUR PU)           6        Requires Plant Inlet Temp 107.F Case 2a_9PM                 33            3559 (MUR PU)           6        Initial UHS Temp equal to TS Limit; Requires Plant Inlet Temp < 107.0°F Initial UHS Temp equal to TS Limit; Case2a_6PAM                 33            3559 (MUR PU)          18        Requires Plant Inlet Temp < 107.0°F Initial UHS Temp equal to TS Limit; Requires Plant Inlet Temp _ 107.0°F Case  3a_9AM                33            3559 (MUR PU)          18        Initial UHS Temp equal to TS100F ReursPatIltTm                     Limit; IRequires PlantPlant Inlet Inlet Temp:

CaseRequires Temp _<107.(F 107.0°F Initial UHS Temp equal to TS Limit; Initial UHS Temp equal to TS Limit; Requires Plant Inlet Temp _ 107.0°F Initial UHS Temp equal to TS Limit; 3 Requires Plant Inlet Temp _ 107.0°F PROJECT NO. 11333-297I

I CALCULATION NO. L-002457 REVISION NO. 8 PAGE NO. 15 1 Power Level Sediment r Case Weather Data (MWt) Level (in.) Design Criteria Case 3a6P3M 33 3559 (MUR PU) 18 Initial UHS Temp equal to TS Limit; Requires Plant Inlet Temp _ 107.0°F UHS Temp equal to TS100FLimit; Case 3a_9PM 33 3559 (MUR PU) 18 Initial ReursPatIltTm case 4a-AM 33 3 (MUR P) 12 Requires Plant Inlet Tempo 107.0Lmt _ 9 IDInitial UHS Temp equal to TS Limit-e 4a Cae4_3A 33 33559 (MUR PU) j 12 Requires Plant Inlet Requires Plant Inlet Temp Temp <-0.° _ 107.0°F Case 4a 6AM 33 I 3559 (MUR PU) t 12 Initial UHS Temp equal to TS Limit; Initial UHSPlant equal TempInlet to TS Limit Requires Temp < 107.00F

                                      !II                                _      _        Requires Plant Inlet Temp *1070 F 33            3559 (MUR PU)           12          Initial UHS Temp equal to TS Limit; Case 4a_12PM Case     4a3MRequires                                                                    Plant Inlet Temp _ 107.0°F Case 4a 313MCeM            33            3559 (MUR PU)P2         12          Initial UHS Temp equal to TS Limit;
         '      __-_                                                     _          _    Requires Plant Inlet Temp < 107.0°F Cas4a6M Case4aSPM           t      333            55 (MURMRP  pu)        12          Initial RequiresUHSPlant Temp    equal to TS Limit; Inlet Temp _<107.0°F
                            ',I   ase4a3 9M          355 (MR PU        !      2       ,InitialLUHS   Temp equal to TS Limit;
                       -4          . 33        ' 3559                      12                           Inle Tem 107.0 0F I __________________      jRequires                     Plant Inlet Temp!*

2.2 Acceptance Criteria This calculation assumes an initial UHS temperature and demonstrates that peak temperature acceptance criteria 2.2.1 and 2.2.2 are met. The maximum initial UHS temperature is the maximum allowable lake temperature during normal operation. 2.2.1 Acceptance Criterion #1 - Peak Temperature - For the worst Reg. Guide 1.27, Rev. 1 composite 31-day and Rev. 2 composite 36-day weather periods (up to Rev. 6), the maximum allowable plant water intake temperature from the UHS is variously 100'F (Rev. 3), 102'F (Rev. 4), 104'F (Rev. 5 through Rev. 7), or 107'F (Rev. 7, 3 1-day weather period only). For Rev. 8, the peak temperature of the UHS shall not exceed the maximum allowable UHS temperature of 107 0F. 2.2.2 Acceptance Criterion #2 - UHS Inventory - There are no specific acceptance criteria for maximum UHS lake drawdown. However, for the worst 30-day evaporation period, the maximum lake drawdown is determined for input to calculation L-001355 [Ref. 5.13]. I PROJECT NO. 11333-297 I

CALCULATION NO. L-002457 REVISION NO. 8 PAGE NO. 16 2.3 Limitations The results of this calculation are limited by the accuracy of the LAKET-PC program and models inherent in the code (see Ref. 5.14, for a comparison of the predictions of the LAKET program against lake intake temperatures observed in August 1989 at the LaSalle Station). In addition, see Attachment N for additional validation of LAKET. 2.4 Identification of Computer Programs An updated version of LAKET-PC [Ref. 5.1c] was used when performing calculations for Revision 4 (see Attachment G). Unlike its previous version, the weather files are in text format instead of binary. It was therefore necessary to use the Bin to Txt application included in LAKET-PC program number 03.7.292-2.0 [Ref. 5.1 ] to convert previously used binary weather files into text files. After the Rev. 4 issue of this calculation, LAKET-PC [Ref. 5.1 d] was updated further to improve flexibility in modeling. This update did not change the basic modeling algorithms as demonstrated by re-running the Attachment G analyses. This latest version was used in the Rev. 5, Rev. 6, Rev. 7, and Rev. 8 of this calculation. With each update that was made, verification calculations with previous calculations were made to ensure the newer, updated version of the software obtained results that matched its predecessor. For verification purposes, Case 0009 from the main body was recalculated prior to beginning Revision 4 calculations. Results were within 0.03'F of each other. Several previous cases were recalculated prior to conducting tests for Revision 5 for verification of results for the additional update. Since Revisions 6 through 8 utilize the same version of LAKET as Revision 5, no formal verification was necessary. I PROJECT NO. 11333-297

CALCULATION NO. L-002457 REVISION NO. 8 PAGE NO. 17 3.0 ASSUMPTIONS / ENGINEERING JUDGEMENTS 3.1 Makeup, Blowdown, Runoff, etc. - Consistent with previous calculations [Ref. 5.4], it is assumed that there is no makeup, blowdown, runoff, or dam spill in the UHS. 3.2 Initial Natural Lake Temperature - Up to Revision 6, the initial natural UHS temperature is assumed to be 4.57F lower than the initial forced UHS temperature. Higher initial natural temperatures produce higher peak UHS temperatures, if the peak temperature occurs in the first few days of the UHS transient. A previous calculation, L-002456 [Ref. 5.6a], analyzed the cooling lake for two units in full power operation (post-power uprate configuration) during the worst day and the worst five days in the weather history (July 15, 1995 and July 12 - 17, 1995). It found that the minimum difference between forced and natural lake temperatures during this peak lake temperature period is 4.5°F. The LOCA transient begins with a cooling lake dike failure and both units operating at full power. Although L-002456 [Ref. 5.6b] was revised for MUR PU and found an increase in maximum lake temperature by approximately 0.1°F, the minimum difference between forced and natural lake temperatures during the peak lake period of 4.5°F remains bounding. Therefore, this assumption remains conservative. Revision 7 - The initial natural UHS temperature is conservatively assumed to be equal to the initial forced UHS temperature. Revision 8 - The initial natural temperature is set to the natural temperature of the UHS at the initial time of each case. This is determined from the results of the worst weather determination cases

    'WorstWeather_1 10.dat' and 'WorstWeather_120.dat' (see Attachment 0).

3.3 Sensible Heat Load from RCS - Up to Revision 6, it is conservatively assumed that all of the sensible heat from the reactor and the primary system is dissipated to the UHS within six hours. One-half of the heat is assumed to be rejected in the first 3-hour time step and the other half is rejected in the second 3-hour time step. This is based on the assumption that the temperature within the reactor will be at 100°F within 6 hours. Peak calculated temperatures are not sensitive to the timing of the introduction of sensible heat within the first two time steps of the analysis. Note that the minimum time step for LAKET is three hours which is short relative to the transit time of the lake given by the UHS volume divided by the volumetric flow rate of CSCS flows or: ttan.,it = V / Q = (341.4 acre-ft)( 43,560 ft2/acre) / (86.0 cfs) ttransit = 172,923 sec = - 48 hours Where the UHS volume is taken from Table 7.3 and Q is taken from Assumption 3.5. Thus the time step (3 hours) is small relative to the transit time (48 hours). Revision 7 - It is still assumed that all of the sensible heat from the reactor and the primary system is dissipated to the UHS within six hours. However, since LAKET is run using one hour time steps, one-sixth of the heat is assumed to be rejected in each of the first six hours. Also, with the new effective volume factor calculated in Attachment J and lake volume following removal of water for fire-fighting in Attachment I, the transit time of the UHS is changed. The new UHS transit time is: ttrsit = Wtotal * (Effective Vol. Factor) / Q = (340.0 acre-ft)*(0.634)*(43,560 ft2/acre) / (86.0 cfs) PROJECT NO. 11333-297

CALCULATION NO. L-002457 REVISION NO. 8 PAGE NO. 18 tnsit = 109,184 sec = 30.3 hours (for 18-in of sedimentation) The time step (one hour) is small relative to the transit time (30.3 hours). Revision 8 - The dissipation of sensible heat to the UHS is considered in sections D6.1.1 and D6.2.1 of L-002453 [Ref. 5.8d]. Due to a change in the UHS flow rate the transit time has changed. This calculation is documented in Section 06.3 of Attachment 0. ttransit = 123,063 sec = - 34.2 hours (for 18-in of sedimentation) 3.4 UHS Surface and Volume - The effective surface area and volume are assumed to be 90% of the total surface area and volume. This is in accordance with Reference 5.14, which compares the predictions of the LAKET program against lake intake temperatures observed in August 1989 at the LaSalle Station. Revision 7 and 8 - An effective area percentage of 57.9% of the total UHS area and an effective volume percentage of 63.4% of the total UHS volume are determined in Attachment J. This was determined for the 18-in of sedimentation case. The use of maximum silting reduces the UHS volume, and therefore the residence time. This reduces the effectiveness of the UHS and is thus conservative. 3.5 CSCS Flow - The total plant flow during the UHS analysis is assumed to be 38,600 gpm (86.0 cfs). The total flow is based upon the cumulative flow contribution from thirteen CSCS pumps operating at design flow conditions (eight RHR-SW pumps, 4,000 gpm each; three DG pumps, two at 1300 gpm and one at 2,000 gpm; and two HPCS DG pumps, 1000 gpm each) [Ref.'s 5.11, 5.12]. Revision 7 - It is noted that the fuel pool emergency makeup flow rate is not included, as this flow does not return to the UHS (See Assumption 13.1). Revision 8 - Due to an RHR pump and two RHR service water pumps being aligned for spent fuel pool cooling services, the total plant flow is 29,300 gpm (65.3 cfs) for the first 16 hours following the UHS event and is 38,600 gpm (86.0 cfs) following the first 16 hours [Ref. 05.11]. More detail is provided in Design Input 04.6. Additionally, the UHS no longer provides fuel pool emergency makeup flow. 3.6 Water Properties - Up to Revision 6, the density and specific heat of water in the UHS are assumed to be 62.02 lb/ft3 and I Btu/lb-°F, respectively [Ref. 5.10]. This corresponds to an assumed average temperature of 98.5'F. Revision 7 and 8 - The density and specific heat of water in the UHS are assumed to be 62.00 lb/ft3 and 0.998 Btu/lb-0 F, respectively [Ref. 5.10]. This corresponds to an assumed average temperature of 100°F. 3.7 UHS Inventory used for Fire Fighting - As stated in minor Revision 5A, the UHS requirement for use of fire water during accident and transient conditions was revised from 132,000 gals to 440,400 gals (See UFSAR Change Package LUCR #96. UFSAR section 9.2.6.3.a was updated by UFSAR Change Package LUCR #96). Assumption 3.7 is adjusted to account for the new UHS requirement for fire fighting in 3.7B. A. Up to Revision 5 - The use of UHS inventory for fire fighting is insignificant. UFSAR Section 9.2.6.3 [Ref. 5.3] states that 132,000 gallons of water from the UHS must be available for fire fighting following an accident. Fire fighting could consume up to 0.41 acre-ft (132,000 gal x 0.1337 ft3/gal / 43,560 ft2/acre). The volume and surface area of the UHS at its maximum drawdown of 1.5 ft (El. I PROJECT NO. 11333-297 1I

I CALCULATION NO. L-002457 REVISION NO. 8 PAGE NO. 19 1 688.5 ft) are 341 acre-ft and 81.3 acres, respectively. Thus, fire water consumption would decrease the UHS heat capacitance by only 0.1% (0.41 acre-ft/341 acre-ft) and increase the maximum UHS drawdown by only 0.005 ft (0.41 acre-ft/81.3 acres). B. Revisions 5 and 6 - The use of UHS inventory for fire fighting is insignificant. UFSAR Section 9.2.6.3 [Ref. 5.3] states that 440,400 gallons of water from the UHS must be available for fire fighting following an accident. Fire fighting could consume up to 1.352 acre-ft (440,400 gal x 0.1337 ft3/gal / 43,560 ft 2/acre). The volume and surface area of the UHS at its maximum drawdown of 1.5 ft (El. 688.5 ft) are 341 acre-ft and 81.3 acres, respectively. Thus, fire water consumption would decrease the UHS heat capacitance by only 0.396% (1.352 acre-ft/341 acre-ft) and increase the maximum UHS drawdown by only 0.0 166 ft (1.352 acre-ft/81.3 acres). This is less than 0.2 inches of drawdown. C. Revision 7 and 8 - The use of UHS inventory for fire fighting is accounted for in the LAKET evaluations. It is assumed that all UHS inventory for fire fighting (440,400 gallons [Ref. 5.3]) is used immediately following an accident (See Assumption 13.2 in Attachment I). This is conservative as it decreases the volume of water in the UHS. 3.8 Modeling of Precipitation - Up to Revision 6, in the UHS analysis for power uprate no credit is taken for precipitation. The worst UHS temperature and evaporation periods for the updated weather history were selected assuming there is no precipitation. The UHS maximum temperature and maximum evaporation cases were analyzed assuming there is no precipitation. Revision 7 and 8 - The worst UHS temperature and evaporation periods for the updated weather history were selected with precipitation included. Following selection of the worst periods, precipitation is conservatively removed, and analysis of the UHS maximum temperature and maximum evaporation cases were analyzed assuming there is no precipitation. I PROJECT NO. 11333-297 1

I CALCULATION NO. L-002457 REVISION NO. 8 PAGE NO. 20

                                                                                                                          !0 4.0 DESIGN INPUTS 4.1 UHS Geometry - According to calculation L-001584 [Ref. 5.5], the surface area and volume profile for the UHS with no sediment accumulation can be represented as a series of fifteen, one-foot thick frustums, as follows (volume adjustments account for segments that are not frustums):

Segment Bottom ] Top Volume No Elevation I Surface Area Surface Area Adjustment 3 3 (acre-ft) (Mt) __(ft ) (acres) __(ft ) (acres) 15 675-676 332 0.0076 2786 0.064 14 676-677 2786 0.064 I 8091 0.186 13 677-678 8091 0.186 14,215 0.326 12 678-679 14,215 0.326 1 224,302 5.15 +2.27+1.66* 11 679-680 224,302 5.15 1 275,605 6.33 10 680-681_ 275,605 353,588 8.12 9 681-682 353,588 8.12 1 423,844 9.73 8 682-683 423,844 9.73 526,454 12.09 7 683-684 526,454 12.0 642,512 14.75 6 684-685 642,512 14.75 1,293,664 29.70 -0.84* 5 685-686 1,293,664 29.70 1,293,664** 29.70** +21.67+19.54* 4 686-687 3,368,632 77.33 3,439,517 78.96 - 3 687-688 3,439,517 78.96 3,508,668 80.55 - 2 688-689 3,508,668 80.55 3,578,525 82.15 - 1 689-690 3,578,525 82.15 3,651,620 83.83 -

• Adjustments to the frustum volumes account for the UHS bottom contour, localized hills and pockets S*Segment 5 is modeled as a cylinder with major adjustments to account for the UHS bottom contour According to Reference 5.5, the UHS volume for zero sediment deposition is 465 acre-ft. The surface area and volume profile data from Reference 5.5 are based on the latest lake survey performed in 1997.

According to UFSAR Section 9.2.6 [Ref. 5.3], the UHS volume for zero sediment deposition is 460 acre-ft. The volume from 1997 lake survey data is only 1% greater than the volume cited in the UFSAR. Because of this and because the lake survey provides the best available volume and lake contour data, the lake survey data will be used in the UHS analysis. 4.2 Weather Periods 31 Day Synthetic Weather Period (R.G. 1.27, Rev. 1) - The worst combined 31-day historical weather period is based on weather data from July 4, 1948 through June 30, 1996 and is synthetically assembled in a data file (File Name: worstday-9am.txt) and is documented in Attachment H [see Attachment A and Ref. 5.4]. I PROJECT NO. 11333-297 II

I CALCULATION NO. L-002457 REVISION NO. 8 PAGE NO. 21 11 Revision 7 - The worst combined 31-day historical weather periods is based on weather data from July 4, 1948 through June 30, 1996 used in the previous revisions and weather data from January 1, 1995 through September 30, 2010 from LaSalle Station (with unavailable data from Peoria, IL). Selection of the worst weather day and worst weather 30 days and a synthetically assembled data file of these days are documented in Attachment M. Revision 8 - The combined 3 1-day historical weather period is not used in this revision. 36 Day Synthetic Weather Period (R.G. 1.27, Rev. 2) - The worst combined 36-day historical weather period is based on weather data from July 4, 1948 through June 30, 1996 and is synthetically assembled in a data file (File Name: 5-1-30days9am.txt) and is documented in Attachment H [see Attachment A and Ref. 5.4]. Revision 7 and 8 - The worst combined 36-day historical weather period is not used in this revision. 30 Day Weather Period (R.G. 1.27, Rev. 1) - The worst 30-day historical weather period for evaporative losses is based on weather data from the summer of 1954 as contained in a data file (File Name: 30dayevap.txt) and documented in Attachment H. Revision 7 and 8 - The worst 30-day historical weather period for evaporative losses based on weather data from the summer of 1954 was determined to remain limiting when compared to worst 30-day weather period for evaporative losses from the LaSalle Station weather data from January 1, 1995 to September 30, 2010. This is documented in Attachment M. Revision 8 - Weather file creation for this revision is documented in Section 06.4 in Attachment 0. Weather files are created for several time periods including: 1) the worst 33, 39, 42, or 45 hours followed by the next consecutive 31 days at various starting times and 2) synthetic weather files of the worst 33 hours, worst 24 hours, and worst 30 days at various start times. 4.3 Seepage Rate 0.2 cfs [Ref. 5.4] 4.4 CSCS Pond Length 5500 ft [Ref. 5.4] 4.5 UHS Heat Load Appendices L9.1 and L9.3 in Attachment L (Rev. 7) [Ref. 5.8] Appendix P9.1 in Attachment P (Rev. 8) [Ref. 5.8] 4.6 Current T.S. Allowable Sediment Accumulation in the UHS 1.5 feet (average) [Ref. 5.9] 4.7 Maximum Allowable CSCS Intake Temperature Case Specific 4.8 Other - See Attachment G for additional Revision 4 Design Inputs, Attachment H for additional Revision 5 and 6 Design Inputs, Attachment I for additional Revision 7 Design Inputs, and Attachment 0 for additional Revision 8 Design Inputs. I PROJECT NO. 11333-297 11

CALCULATION NO. L-002457 REVISION NO. 8 PAGE NO. 22

5.0 REFERENCES

5.1 a) LAKET-PC Computer Prog., Version 1.0, S&L Program No. 03.7.292-1.0, October 1997. b) LAKET-PC Plot Prog., Version 1.2, S&L Program No. 03.7.292-1.2, Nov. 1999 c) LAKET-PC Computer Prog., Version 2.0, S&L Program No. 03.7.292-2.0, Aug. 2004 (Rev. 4). d) LAKET-PC Computer Prog., Version 2.2, S&L Program No.03.7.292-2.2, Dec. 2004 (Rev. 5, 6, 7, and 8). 5.2 "Ultimate Heat Sink for Nuclear Power Plants," U.S. Atomic Energy Commission, Regulatory Guide 1.27, Rev. 1, March 1974 and Rev. 2, January 1976. 5.3 "Ultimate Heat Sink," LSCS-UFSAR, 9.2.6, Rev. 19.

• 5.4 "Sensitivity Study for Ultimate Heat Sink Sizing," Calculation L-001581, Rev. 0, December 23, 1997.

5.5 "Volume of the Ultimate Heat Sink (UHS)," Calculation L-001584, Rev. 1, March 25, 1998. 5.6 a) "LaSalle County Station Cooling Lake Performance," Calculation L-002456, Rev. 1. b) "LaSalle County Station Cooling Lake Performance," Calculation L-002456, Rev. Ia. 5.7 UHSAVG Computer Program, S&L Program No. 03.7.642-1.0, August 1997. 5.8 a) "UHS Heat Load," Calculation L-002453, Rev. 1, December 1999. b) "UHS Heat Load," Calculation L-002453, Rev. 2, April 2002. c) "UHS Heat Load," Calculation L-002453, Rev. 3, June 2012. d) "UHS Heat Load," Calculation L-002453, Rev. 4. 5.9 LaSalle Technical Specifications, SR 3.7.3.2, Surveillance Requirements, Amendment 206/193. 5.10 STMFUNC Computer Program, S&L Program Number STM 03.7.598-2.0, May 2003. 5.11 LaSalle CSCS Pump Curves, Crane-Deming, (Attachment D): a) T-5669, "Pump Performance Curve for 2E 12-C300A," Rev. 1. b) T-5670, "Pump Performance Curve for 2E12-C300B," Rev. I. c) T-567 1, "Pump Performance Curve for 2E 12-C300C," Rev. 1. d) T-5672, "Pump Performance Curve for 2E12-C300D," Rev. 1. e) T-5695, "Pump Performance Curve for 2E12-C300A," Rev. 1. f) T-5706, "Pump Performance Curve for 1E12-C300B," Rev. 1. g) T-5707, "Pump Performance Curve for 1E12-C300C," Rev. 1. h) 1821-2, "Pump Performance Curve for 1E12-C300D," Rev. 1. i) 1940-2, "Pump Performance Curve for ODGO123P," Rev. A. j) 19516, "Pump Performance Curve for IDGOIP & 2DGOIP," Rev. 1. PROJECT NO. 11333-297

REVISION NO. 8 PAGE NO. 23 1 I CALCULATION NO. L-002457 PAGE NO. 23 ~ I CALCULATION NO. L-002457 REVISION NO. 8 5.12 VPF 3275-048, "Pump Performance Curve," Union Pump Co. HPCS DG Pump IE22-C002 and HPCS DG Pump 2E22-C002, Rev. 2 (Attachment D). 5.13 L-00 1355, "LaSalle County Station CSCS Hydraulic Model," Rev. 005A. 5.14 S&L's January 5, 1990 Study, "Comparison of Cooling Lake Temperature Predictions from the LAKET Computer Model with Observed Lake Temperatures for the Summer of 1989," in file WIN 0858 (provided as an Attachment to Reference 5.6, "LaSalle County Station Cooling Lake Performance," Calculation L-002456, Rev. 1, December 13, 1999). 5.15 Marks' Standard Handbook for Mechanical Engineers, 9h Edition, Edited by Avallone and Baumeister, McGraw-Hill, 1987 5.16 Letter from Mike Peters, Lasalle Station to Manuel Vega, S&L.

Subject:

Requested Input for L-002457 Revision 5. (See pp. H23) Email from Paul Derezotes, S&L to Michael Duffy, S&L, "Uhsavg Program Capabilities Summary for 5.17 Lasalle." (See pp. H24) 5.18 GE Letter SC06-01, dated 1/19/2006, "Plants with GE Containment Design or Analysis (Attachment 1)" I PROJECT NO. 11333-297 1I

I REVISION NO. 8 PAGE NO. 24 1 I CALCULATION NO. L-002457 I 6.0 NUMERIC ANALYSIS 6.1 Calculation of Plant Temperature Rise, AT The CSCS temperature rise across the plant is computed per the method described in Section 2.1.6. Table G7.1 contains the average temperature rise for each time step for the Rev. 4, 5, and 6 analyses. The average temperature rise for MUR PU and EPU is calculated in Attachment L for the Rev. 7 analysis. The plant heat load calculation [Ref. 5.8d] was revised to incorporate more realistic heat loads. The plant temperature rise based on the revised heat loads are calculated in Attachment P for the Rev. 8 analysis. (Note that the heat load data for the Rev. 3 analyses for each three-hour increment is listed in Table 7.2 and Figure 7.14 of this calculation). The EXCEL formulas and interpolation macro for the temperature rise up to Rev. 6 are printed in Attachments C and G. The interpolation is verified by inspection. The tables are produced using EXCEL Version 97SR-1. Formulas for determining the CSCS temperature rise across the plant in Rev. 7 are shown in Attachment L. Formulas for determining the CSCS temperature rise across the plant hi Rev. 8 are shown in Attachment P. 6.2 UHS Area and Capacity The area-capacity profile of the UHS is determined for three sediment accumulation levels: 0, 0.5, and 1.5 feet for Rev. 5 and 1 foot for Rev. 6. The existing technical specification limit on minimum UHS volume is an average sediment accumulation of 1.5 feet. The 0.5-foot and 1-foot sediment accumulation cases were selected as an intermediate level of volume degradation that could potentially serve as a new technical specification limit. (As can be seen in the Table 6.1 computation of UHS volume, an average sediment accumulation of 0.5 ft corresponds to a UHS volume of 423.5 acre-ft.) The area-capacity profile of the UHS is computed using the inputs of calculation L-001584 [Ref. 5.5] and the methodology of calculation L-001581 [Ref. 5.4]. The UHS is modeled as a series of one-foot thick horizontal slices, each in the shape of a frustum. The survey data summarized in Design Input 4.1 provides the surface areas of the top, A,, and the bottom, Ab, of each of these segments (of depth, d). The volume of each of these frustums is (At + Ab + [(At)(Ab)f] )(d/3) [Ref. 5.15]. Deviations from the frustum shape within each of the segments are accounted for by the volume adjustments identified in Design Input 4.1. Because a somewhat simpler methodology was used, the results of the area-volume profile calculation are slightly different than those of calculation L-001584 [Ref. 5.5]. The area-capacity profiles are computed in the Excel spreadsheet shown in Table 6.1 and Appendix C (EXCEL Version 97SR-1). Sediment is assumed to deposit in a layer of uniform vertical thickness along the bottom and sloped sides of the UHS. A one-foot sediment accumulation results in a one-foot translation upward of the UHS geometry, which is modeled as a reassignment of the dimensions of each segment to the next highest neighboring segment. Fractional-foot sediment accumulation is modeled as the fractional reassignment of the dimensions of each segment to higher segments. Each one-foot thick segment is then composed of fractional-foot thicknesses of two neighboring frustums. For the 0, 0.5, 1, and 1.5-foot sediment cases, area and capacity were computed at elevation 690 ft and at one-foot intervals down to elevation 685 ft. The areas, incremental volume and total volume for these elevations are shown in bold type in Table 6.1. The LAKET-PC runs use the area and volume for only these first six elevations. For the 0, 0.5, 1, and 1.5-foot cases below elevation 685 ft, area and volume are I PROJECT NO. 11333-297 1I

CALCULATION NO. L-002457 REVISION NO. 8 PAGE NO. 25 computed only at intermediate elevations such as 683.5 and 684.5 ft. Data from the Table 6.1 spreadsheet that is used as LAKET-PC input is listed in Table 7.1. For Revision 7, the UHS volume and area input to LAKET are revised to incorporate the effects of removing water for fire-fighting. See Attachment I for further documentation of the changes to UHS volume and area. In addition, the effective area and effective volume of the UHS are changed as a result of the analysis in Attachtnent J. See Attachment I for further documentation of the changes to UHS volume and area. Revision 8 uses the same UHS volume and area input as developed in Revision 7. 6.3 Maximum Allowable Lake Temperature 6.3.1 UHS Temperature Limit of I00°F - Rev. 3 Analysis The UHS analysis is performed using the LAKET-PC computer program. For postulated safe shutdown and design basis accident events, the peak UHS temperature must be kept within the CSCS intake temperature limit of 100l. The analysis determines the maximum lake intake temperature that can be allowed during normal operation, consistent with the 100°F temperature limit. Three sediment depths are modeled for the worst 36-day composite temperature period. A no sediment case, a 0.5-foot sediment case, and a 1.5-foot sediment case are run for the updated weather data conditions. The 0.5-foot sediment case corresponds to a potentially new technical specification limit of 423.5 acre-ft on UHS volume. The 1.5-foot case corresponds to the current technical specification limit on average UHS sediment deposition. In assuming the initial UHS temperature is equal to the maximum allowable temperature of the cooling water supply to the plant from the lake, one is assuming conditions more severe than occur in the weather history. Because of this, the peak temperature occurs in the first day of these UHS transients and the time of day at which the transient is assumed to begin becomes critical. To account for the time of day at which the UIHS transient may start, eight start times (00:00, 03:00, 06:00, 09:00, 12:00, 15:00, 18:00 and 21:00) are used for each of the three sediment depths being analyzed. Limiting initial UHS temperatures are found for the 24 combinations of start time and sediment depth for:

1. the first day of the UHS transient is worst day in the weather history (July 15, 1995), and

2. the first day in the UHS transient is the first of the worst five days in the weather history (July 12 -

17, 1995). The limiting initial UIHS temperatures found by these two tests are listed in Table 7.3, plotted in Figure 7.1 and documented in Attachment B. Table 7.3 indicates which of the two tests, the one-day or the five-day test, produced the most restrictive temperature limit for each case. Three of the post-LOCA temperature transients are shown in Figures 7.2, 7.6, and 7.10. The corresponding post-LOCA drawdowns are shown in Figures 7.3, 7.7 and 7.11. (The LAKET-PC data used to generate these plots is provided in Attachment F.) The three cases selected for these plots are the sediment depths of 0, 0.5 and 1.5 ft, the start time of 09:00, and the worst 36-day composite weather history (consistent with R.G. 1.27, Rev. 2). The limiting initial UHS temperatures are consistent with a peak CSCS intake temperature of I00°F. In addition to determining the post-LOCA temperature response of the UHS to the worst 36-day temperature period, the maximum UHS drawdown was determined for the worst 30-day evaporation period (in accordance with R.G. 1.97, Rev. 2). A 0-foot , a 0.5-foot and a 1.5-foot sediment case are run with the PROJECT NO. 11333-297

CALCULATION NO. L-002457 REVISION NO. 8 PAGE NO. 26 updated weather data. The 0.5-foot sediment case corresponds to a potentially new technical specification limit on UHS volume of 423.5 acre-ft and the 1.5-foot sediment case is the existing technical specification limit. UHSAVG selected the time of day at which the drawdown transient begins. LAKET-PC output for the 30-day evaporation cases is documented in Attachment B. The post-LOCA temperature transients are shown in Figures 7.4, 7.8 and 7.12 and the post-LOCA drawdowns are shown in Figures 7.5, 7.9 and 7.13. (The LAKET-PC data used to generate these plots is provided in Attachment F.) Initial UHS temperatures were selected to produce a peak CSCS intake temperature of 100°F. 6.3.2 UHS Temperature Limit of 102'F - Rev. 4 Analysis For this analysis, the limiting plant intake temperature is increased to 102'F. Limiting weather data is unchanged from the Rev. 3 analysis. Further, the limiting start time for the transient is based on the parametric analysis per Rev. 3. Thus 09:00 hrs (9 AM) is taken as the most limiting start time. The limiting initial UHS temperature obtained for this start time can be conservatively applied as a maximum operating lake temperature for any time during the day. Analysis and results are documented in Attachment G. 6.3.3 UHS Temperature Limit of 104'F - Rev. 5 and 6 Analyses For this analysis, the limiting plant intake temperature is increased to 104'F. Limiting weather data is unchanged from the Rev. 3 analysis. Further, the limiting start time for the transient is based on the parametric analysis per Rev. 3. Thus 09:00 hrs (9 AM) is taken as the most limiting start time. The limiting initial UHS temperature obtained for this start time can be conservatively applied as a maximum operating lake temperature for any time during the day. Rev. 6 utilizes the same methodology as Rev. 5 for additional cases to analyze the maximum initial UHS temperatures for 1 ft of sediment. Analysis and results are documented in Attachment H. 6.3.4 UHS Temperature Limit of 104'F and 107'F for EPU and MUR PU - Rev. 7 Analysis For this analysis, the limiting intake temperature is 104'F and 107'F. The limiting weather data is updated from the previous revisions, as documented in Attachment M. The limiting time of day at which the UHS starts is determined by running Case 3a (107°F intake temperature, 18-in sediment level, EPU power level) at eight different start times (00:00, 03:00, 06:00, 09:00, 12:00, 15:00, 18:00 and 21:00) and determined to be 6:00AM. The limiting initial UHS temperature obtained for this start time can be conservatively applied as a maximum operating lake temperature for any time during the day. Analysis and results are documented in Attachment I. 6.3.5 UHS Temperature Limit of 107'F for MUR PU - Rev. 8 Analysis For this analysis, the limiting intake temperature is 107'F. The limiting weather data is updated from the previous revisions, as documented in Section 06.4 of Attachment 0 in order to conform to Rev. 2 of R.G. 1.27 [Ref. 5.2]. Cases are run for eight different start times (00:00, 03:00, 06:00, 09:00, 12:00, 15:00, 18:00 and 21:00) at four different sedimentation levels (0 in, 6 in, 12 in, and 18 in). Analysis and results are documented in Attachment 0. 6.4 30-Day Evaporation Up to Revision 6 - The limiting initial temperature for the various amounts of siltation (see Section 7.1.3) is used as the starting point for the 30-day evaporation case to demonstrate negligible impact on previous results. Results documented in Attachment H demonstrate that the UHS evaporative losses are less than I PROJECT NO. 11333-297 1I

REVISION NO. 8 PAGE NO. 27 I CALCULATION NO. L-002457 i - 1.5-ft for the worst 30-day evaporative period. Revision 7 - The limiting initial temperature for the various amounts of siltation (see Section 7.1.3) is used as the starting point for the 30-day evaporation case to determine the maximum amount of UHS drawdown. For the 107 0 F limiting intake temperature and EPU power level, the limiting sediment level is determined to be 0-in. For other cases (i.e. 104'F or MUR PU) only the limiting sediment level case (0-in) is run. Results are documented in Attachment I. Revision 8 - Worst 30-day net evaporation cases are run for the four levels of sedimentation. Results are documented in Attachment 0. I PROJECT NO. 11333-297 1I

CALCULATION NO. L-002457 REVISION NO. 8 PAGE NO. 28 7.0 RESULTS AND CONCLUSIONS 7.1 Summary 7.1.1 Historical Results - Rev. 3 and Earlier The inclusion of weather conditions from 1982 to 1996 significantly increases the severity of the UHS design basis temperature transient. The worst 36-day composite weather period was developed from July 1948 through June 1996 weather history for the area. The UHSAVG program determined the worst 36-day (worst 5-day + worst 1-day + worst 30 consecutive day) period to be: 09:00, July 12, 1995 through 06:00, July 17, 1995; 12:00, July 15, 1995 through 09:00, July 16, 1995; and 15:00, July 10, 1983 through 12:00, August 9, 1983 (see Appendix A for details). In analyzing the effect of beginning the UHS temperature transient at the maximum allowable cooling lake temperature, one is assuming conditions more severe than those that have occurred in the weather history. Because of this the peak UHS temperature occurs in the first day of the LOCA transient. The results of the LAKET-PC analysis for the each of the UHS transient start times are summarized in Table 7.3 and Fig. 7.1. The maximum design intake temperature for the CSCS system is 1007F [Rev. 3 analysis]. To meet this requirement, the daily high temperature of the cooling water supply to the plant from the lake would have to be limited to 97.57F. This limit is consistent with the 96.50 F limit at 9:00 am for 1.5-foot silt depth (341.4 acre-ft volume) in the UHS (see Sec. 7.5 for justification). According to Calculation L-002456, Rev. 1 [Ref. 5.6], the 09:00 temperature of the cooling water supply to the plant from the lake on the worst day of the weather history is 95.47F. As can be seen in Figure 7.1, the I.1°F margin between the historically hottest day and the initial UHS temperature limit is the smallest margin that exists for any starting time of the UHS design temperature transient. This margin provides an assurance that there is little risk that the most restrictive temperature limits on cooling lake temperature will be exceeded in the future. If the minimum allowable UHS volume were changed to 423.5 acre-ft (0.5 ft average sediment depth), temperature of the cooling water supply to the plant from the lake would have to be limited to 97.57F at 9:00. The maximum drawdown for power uprate under the maximum evaporation conditions is approximately 1.5 feet (El. 688.5 feet). The UHSAVG program determined the worst 30-day evaporation period to be 12:00, June 18, 1954 through 09:00, July 18, 1954. The worst 30-day evaporation period shifted 31/2 days from the period identified in the UFSAR Sec. 9.2.6.3.1 prior to power uprate. This shift was caused by four minor changes in the modeling of the worst evaporating period that were made when UHSAVG was converted from a mainframe to a PC-based program:

1. The solar radiation model was improved.

2. The method for synthesizing missing weather data was improved.

3. The UHS surface area and volume were updated to reflect lake survey data.

4. The average daily heat load was updated for power uprate.

I PROJECT NO. 11333-297 1I

REVISION NO. 8 PAGE NO. 29 11 I CALCULATION NO. L-002457 AEN.2 I CACLTO O -047RVSO O 7.1.2 UHS Temperature Limit of 102TF - Rev. 4 Analyses Maximum Initial UHS Temperatures - Revision 4 (see Attachment G) SWeather Sediment Limiting Initial UHS aseData Level (in.) Methodology Temperature 1 09:00 1/30 0 i Reg. Guide 1.27, Rev. 1 U >1000F 21 09:00 5/1/30 6 Reg. Guide1.27. Rev. 2 >100°F i 3 00 10 18 Reg. Guide 1.27, Rev. 1I 99.35°F 4 06:00 1/30 18 LReg. Guide 1.27, Rev. 1 >1000 F 7.1.3 UHS Temperature Limit of 104'F - Rev. 5 and Rev. 6 Analyses Maximum Initial UHS Temperatures - Revision 5 (see Attachment H) _ ,seStart jWeather Sediment Mh l Limiting Initial UHS I Time Data Level (in.) Metodloy } Temperature. la 09:00 I 1/30 0 Reg. Guide 1.27, Rev. 1I 103.0°F 2a !09:00, 1/30 6 Reg. Guide 1.27, Rev. 1 102"9°F 3a 09:00 1/30 18 1Reg. Guide 1.27, Rev. 1 102.3 0 F l1b 09:00 5/1/30 0 Reg. Guide 1.27. Rev. 2 103.6"F 2b t09:00 ,5/1/30 6 Reg. Guide 1.27. Rev. 2 103.5 0 F 5/1/30 5.3b 18 Reg. Guide 1.27. Rev. 2 102.90F Maximum Initial UHS Temperatures - Revision 6 (see Attachment H)_ Case Start Weather Leve men. M . tngntial UHS Time Data Level(in.) Methodology Temperature 4a] 09:00--T 1/30 12 Reg. Guide 1.27, Rev. 1 j, 102.7 4b 09:00 5/1/30- 12 Reg Guide 1.27. Rev. 2 103.0 The values above are rounded to the nearest 0.10 " and do not include margin. 7.1.4 UHS Temperature Limit of 104'F and 107'F at MUR PU and EPU - Rev. 7 Analyses The inclusion of weather conditions from January 1995 to September 2010 from LaSalle Station (with unavailable weather parameters from LaSalle Station taken from Peoria, IL, see Attachment K) further increases the severity of the UHS design basis temperature transient. The limiting initial UHS temperatures at the sediment levels analyzed for a plant intake limit of 104 0 F or 107'F at MUJR PU and EPU power levels are shown in the table below (See Attachment I for further documentation). I PROJECT NO. 11333-2971

REVISION NO. 8 PAGE NO. 30 I CALCULATION NO. L-002457 AEN.3 I CACLTO O -047RVSO O MIUR PU Maximum Initial UHS Temperatures - Revision 7 (see Attachment I) Start Weather Sediment M Limiting Initial UHS Case Time Data Level (in.) Methodology Temperature laMUR 06:00 1/30 IL 0 Reg. Guide 1.27, Rev. 1 103.63 2a_MUR 1106:00 11 1/30 6 ýjReg. Guide 1.27, Rev. 1 Ii 103.32 3aMUR O600f 1/30 18 Reg. Guide 1.27, Rev. 1 102.46 4aMU 4_MUR__ 06001

3. 0 If 1/30 12 e. 1 Reg. Guide 1.27, Rev. 102.93G 102.93 laMUR 104F 0600 1/30 0 Reg. Guide 1.27, Rev. 1 100.30 3a 2aMUR_104F 06:00 1/30 6 Reg. Guide 1.27, Rev. 1 99.95 I 3aMUR_104F 06:00 ; 1/30 18 Reg. Guide 1.27, Rev. 1 91.68 4 UR-0 06:00 12 Reg. Guide 1.27, Rev. 1 89.54 EPU Maximum Initial UHS Temperatures - Revision 7 (see Attachment I)

Start Weather Sediment Limiting Initial UHS Ca Time Data Level (in.) Methodology Temperature la 06:00 1/30 0 Reg. Guide 1.27, Rev. 1 !i 103.63 2a 06:00 1/30 6 Reg. Guide 1.27, Rev. 1 103.32 3a-12am 00:00 1/30 18 Reg. Guide 1.27, Rev. 1 104.95 3a .3am 03:00 1/30 18 Reg. Guide 1.27, Rev. 1 103.14 3a 6am 06:00 1/30 18 Reg. Guide 1.27, Rev. 1 102.42 3a_9am 09:00 1/30 18 Reg. Guide 1.27, Rev. 1 103.61 3a_12pm 12:00 1/30 jf 18 lReg. Guide 1.27, Rev. 1 105.80 3a_3pm 15:00 1130jf[ 18 Reg. Guide 1.27, Rev. 1 106.97 3a_6pm 3a9pm 18:00 U 1/30 i 21:00t ~130 18 18 Reg. Guide 1.27, Rev. 1 Reg. Guide 1.27, Rev. 1 RJ 107.00 107.00 4a 06:00 1/30 R12 eg. Guide 1.27, Rev. II 102.93 a104F J 06:00 1/30 0 Reg. Guide 1.27, Rev. 1 100.30 2a 104F 06:00 1/30 6 Reg. Guide 1.27, Rev. 1 96.80 3a_104F 06:00 1/30 18 11Reg. Guide 1.27, Rev. 1 87.01 4a_104F I 06:00 130 12 1 eg. Guide 1.27, Rev. 1 85.47 7.1.5 UHS Temperature Limit of 1071F - Rev. 8 Analyses Revision 8 incorporates the weather conditions from January 1995 to September 2010 from LaSalle Station and analyses the UHS design basis temperature transient based on a more realistic MUR PU (3559 MWt) heat load rejected to the UHS and weather selection based on R.G. 1.27, Rev. 2 [Ref. 5.2]. The LAKET-PC [Ref. 5.1] cases are run using the TS limiting temperatures as the initial temperature, and the results are compared to the UHS temperature limit of 107'F. The results of this analysis are shown below (See Attachment 0 for further documentation). I PROJECT NO. 11333-297 ii

I I CALCULATION NO. L-002457 REVISION NO. 8 PAGE NO-. 3111 1 I CACLTO O -047REIINN.8PG O31 UHS T~emperatures at Maximum Allowable Initial Temperature - Revision 8 (see Attachment 0) Start Weather Sediment Initial UHS Maximum UHS Case Time Data Level (in.) Methodology Temperature Temperature DLe(vF) ((F) Case 1a 12am 000 33 0 Reg. Guide 1.27. Rev. 2 i- 104.53 104.53 case a 3am 03:00 0_Reg. Guide Rev. 102.7 102. 1a 6am 00Case 060. 33 0 Reg. Guide 1.27. Rev. 2 102.00 103.12 i, Case la_9am 09:00 .! 33 0 Reg. Guide 1.27. Rev. 2 103.19 104.33 Case 1a_12pm 12:00 !1 33 0 Reg. Guide 1.27. Rev. 2 104.75 104.97 Case 1a_3pm 3 015:00 eg. Guide 1.2 75 __ 104.75 Case 1a_6pm 18:00 33 _ Reg. Guide 1.27. Rev. 2 104.75 104.75 Case ia 9pm ii 21:00 33 0 Reg. Guide 1.27. Rev. 2 104.75 104.75 Caes9p 1 0 uie1.7 Rev 2 047 104.75 Case 2a 12am 00:00 33 6 Reg. Guide 1.27. Rev.2 104.53 105.21 Case 2a 3am 03:00 33 - 6 Reg. Guide 1.27. Rev. 2 102.72 104.54 Case 2a 6am 06:00 33 6 Reg. Guide 1.27. Rev. 2 102.00 SGuide ~1.27Re"v 21 0.0 , 103.21 Case 2a 9am 09:00 33 6 Reg. Guide 1.27. Rev. 2 103.19 104.42 Case 2a_12pm 12:00 33 6 Reg. Guide 1.27. Rev. 2 104.75 , 104.99 Case 2a_3pm 15:00 33 6 Reg. Guide 1.27. Rev. 2 104.75 104.75 Case 2a_6pm 18:00 3 6 Reg. Guide 1.27. Rev. 2 i104.75 104.75 Case 2a9pm il 21:00 33 6 Reg. Guide 1.27. Rev. 2 104.75 104.75 Case 3a_12am 00:00 33 18 Reg. Guide 1.27. Rev. 2 104.53 104.53 Case 3a_3am 03:00 33 18 Reg. Guide 1.27. Rev. 2 102.72 105.75 Case 3a 6am _i 06:00 j 33 18 11Reg. Guide 1.27. Rev. 2 102.00 4 106.15 Case 3a_9am 409:00 33 f 18 Reg. Guide 1.27. Rev. 2 IL 103.19 j 105.31 Case 3a 12pm 12:00 33 18 Reg. Guide 1.27. Rev. 2 104.75 105.05 Case 3a_3pm 1' 5:00 33311 18 1 Reg. Guide 1.27. Rev.2if 104.75 104.75 Case 3a_6pm 18:00 33 18 Reg. Guide 1.27. Rev. 2 1 104.75 l 104.75 Case 3a_9pm 21:-.00 33 18 Reg. Guide 1.27. Rev.21I 104.75 4 104.75 Case 4a_12am 4 00:00 4 33 4 12 Reg. Guide 1.27. Rev. 2 104.53 4 105.86 Case 4a_3am 4 03:00 4 33 4 12 4 Reg. Guide 1.27. Rev. 2 102.72 105.97 Case 4a_6am _ 06:00 33 4 12 _ Reg. Guide 1.27. Rev. 2 102.00 4 105.33 Case 4a 9am 0900 33 12 ' Reg. Guide 1.27. Rev. 2 103.19 104.54 Case4a12pnm . 12:00 4 33 12 Reg. Guide 1.27. Rev. 2 104.75 4[ 105.01 ICase 4a3pm i15-00 33 12 Reg. Guide 1.27. Rev. 2 104.75 104.75 Case 4a6pm 18:00 -33 12 Reg. Guide 1.27. Rev. 2 104.75 104.75 Case 4a_9pm -21:00 4 33 4 12 Reg. Guide 1.27. Rev. 2 104.75 41 104.75 I PROJECT NO. 11333-297 11I

CALCULATION NO. L-002457 REVISION NO. 8 PAGE NO. 32 7.1.6 UHS Drawdown for Temperature Limit of 104'F - Rev. 5 and 6 Analyses Computed drawdown for the UHS is <1.5-ft for the limiting case analysis. 7.1.7 UHS Drawdown for Temperature Limit of 104'F/1 07'F at MUR PU and EPU - Rev. 7 Analysis The computed drawdown for the UHS for a temperature limit of 104'F or 107'F at MUR PU and EPU power levels are shown below (See Attachment I for further documentation). MUR PU Maximum Lake Drawdown - Revision 7 (see Attachment I) Case Weather Data ediment Maximum Lake Drawdown V Level (in.) (ft) ic MUR Worst Net Evap. 0 2.24 i _MUR 104F Worst Net Evap 0 2.22

1) Determined from initial lake elevation of 689.98-ft.

EPU Maximum Lake Drawdown - Revision 7 (see Attachment I)

                        "Sediment
                        ;i                                        Maximum Lake1 Drawdown Case           Weather Data       ' Level (In.)               (ft) 1c          Worst Net Evap.            00                   2.27     -

2c Worst Net Evap. 6 2.25 3c Worst Net Evap. 18 2.20 4c Worst Net Evap. 12 2.23 1c_104F li Worst Net Evap. 0 2.26

1) Determined from initial lake elevation of 689.98-ft.

7.1.8 UHS Drawdown for Temperature Limit of 107 0F - Rev. 8 Analysis The computed drawdown for the UHS for a temperature limit of 107 0 F for the new heat loads developed in L-002453 [Ref. 5.2d] are shown below (See Attachment 0 for further documentation). Maximum Lake Drawdown - Revision 8 (see Attachment 0) Case CaseIWeathe Data Level Sediment(in.)(f) Maximum Lake Drawdown 1c Worst Net Evap. 0 1.42 2c Worst Net Evap. 6 1.42 3c Worst Net Evap. 18 1.42 4c !11Worst Net Evap. 0 1.42 Worst Net Evap., NetEvap_0.1 Wind Power Law 18 1.47 Exponent = 0.1 Worst Net Evap., NetEvap_0.2 Wind Power Law 18 1.45 Exponent = 0.2

1) Determined from initial lake elevation of 689.98-ft.

I PROJECT NO. 11333-297

CALCULATION NO. L-002457 REVISION NO. 8 PAGE NO. 33 7.2 Compliance with Acceptance Criteria 7.2.1 Acceptance Criterion #1 - Peak Temperature - Acceptance Criterion #1 is met provided the plant is operated and monitored and maintain UHS temperatures below the applicable limits per the results listed in Section 7.1.2 (Rev. 4), Section 7.1.3 (Rev. 5 and 6), or Section 7.1.4 (Rev. 7). For Rev. 8, Acceptance Criterion #1 is met as the UHS temperature remains below 107'F for all worst weather cases as shown in Section 7.1.5. 7.2.2 Acceptance Criterion #2 - UHS Inventory - The maximum expected lake drawdown, with no loss of inventory due to spent fuel pool makeup, is given in Section 7.1.8. This will be used in calculation L-001355 [Ref. 5.13]. 7.2.3 Other The following table lists the cases that were run with the updated software prior to performing calculations for Revision 5. This was done to verify the results that were obtained in the original calculations were obtained again with the updated software. LAKET output for the verification cases is provided in Attachment H. Verification Original Calculation Results with Most Case I Revision Results Current Software _ (Plant Inlet Temp, OF) (Plant Inlet Temp, OF) COOe iRevision 3 99.95 99.95

C06e Revson3 99.97 99.96 C1c8e Revision 3 99.97 99.96 C0609 1Revision 4. 99.94.I 99.98 Note: Revisions 6 through 8 utilized the same version of LAKET [Ref. 5.1d] as Revision 5.

7.3 Tables

• Table 6.1: Determination of UHS Area-Capacity Profiles
• Table 7.1: UHS Area-Capacity Inputs for LAKET-PC

       #    Table 7.2: Plant Temperature Rise 4    Table 7.3: Maximum Allowable Initial Lake Temperatures

• Table G7.1: Plant Temperature Rise 4 Table G7.2: Cumulative Summary for Case 1 - 0" Sediment, 09:00 start time
• Table G7.3: Cumulative Summary for Case 2 - 6" Sediment, 09:00 start time 0 Table G7.4: Cumulative Summary for Case 3 - 18" Sediment, 09:00 start time
• Table G7.5: Cumulative Summary for Case 4 - 18" Sediment, 06:00 start time
• Table H7.0: Overall Summary of Cases and Results

       #    Table H7. 1: Cumulative Summary for Case l a - 0" Sediment, 09:00 Start, 1/30 Weather Data 4    Table H7.2: Cumulative Summary for Case lb - 0" Sediment, 09:00 Start, 5/1/30 Weather Data 4    Table H7.3: Cumulative Summary for Case lc - 0" Sediment, 12:00 Start, Worst 30-day Evap. Data
       #    Table H7.4: Cumulative Summary for Case 2a - 6" Sediment, 09:00 Start, 1/30 Weather Data I                                               PROJECT NO. 11333-297                                                1I

CALCULATION NO. L-002457 REVISION NO. 8 PAGE NO. 34 4 Table H7.5: Cumulative Summary for Case 2b - 6" Sediment, 09:00 Start, 5/1/30 Weather Data

      #  Table H7.6: Cumulative Summary for Case 2c - 6" Sediment, 12:00 Start, Worst 30-day Evap. Data
      #  Table H7.7: Cumulative Summary for Case 3a - 18" Sediment, 09:00 Start, 1/30 Weather Data

• Table H7.8: Cumulative Summary for Case 3b - 18" Sediment, 09:00 Start, 5/1/30 Weather Data 0 Table H7.9: Cumulative Summary for Case 3c - 18" Sediment, 12:00 Start, Worst 30-day Evap. Data
• Table H7.10: Cumulative Summary for Case 4a - 12" Sediment, 09:00 Start, 1/30 Weather Data

      +  Table H7. 11: Cumulative Summary for Case 4b - 12" Sediment, 09:00 Start, 5/1/30 Weather Data

• Table H7.12: Cumulative Summary for Case 4c - 12" Sediment, 12:00 Start, Worst 30-day Evap.

Data

• Table H7.13: Table of Outlet Files Revision 7
• Table 12.1: Initial Lake Level
• Table 12.2: List of LAKET Cases
• Table 16.1: LAKET Files
• Table 17. la: MUR PU (3559 MW) Overall Summary for Maximum Temperature
• Table 17. 1b: EPU (4067 MWt) Overall Summary for Maximum Temperature
• Table 17.2a: MUR PU Overall Summary for Maximum Evaporation

      # Table 17.2b: EPU Overall Summary for Maximum Evaporation Revision 8

• Table N6-4: Calculation of Upper Layer Depth
• Table 02-1: Initial Lake Level
• Table 02-2: List of LAKET Cases
• Table 04-1: Proposed TS Limits
• Table 06-1: UHS Transit Time Calculation

      # Table 06-2: Worst Weather Periods - 110°F Initial Temperature

• Table 06-3: Worst Weather Periods - 120'F Initial Temperature

      # Table 06-4: Worst Weather - 9 Hour and 12 Hour Period
      # Table 06-5: Worst Weather Files
      # Table 06-6: Worst Weather Comparison

• Table 06-7: 33-24-30 Case Weather Files
• Table 06-8: 33-24-30 Case Comparison
• Table 06-9: Worst Temperature Cases
• Table 06-10: Worst Net Evaporation Cases

      # Table 06-11: Wind Sensitivity Runs

• Table 06-12: UHS Drawdown Curves for Mixing Zone Sensitivity Runs 4 Table 06-13: UHS Mixing Sensitivity Runs 7.4 Figures
• Figure 7.1: Limiting Lake Temperatures vs. Time of Day
• Figure 7.2: Case 0009: UHS LOCA Temperature Transient, Updated Worst 36-Day Temperature Period
• Figure 7.3: Case 0009: UHS LOCA Drawdown, First 30 Days of Updated Worst 36-Day Temp. Period
• Figure 7.4: Case 00e: UHS LOCA Temperature Transient, Updated Worst 30-Day Evaporation Period
• Figure 7.5: Case 00e: UHS LOCA Drawdown, Updated Worst 30-Day Evaporation Period
• Figure 7.6: Case 0609: UHS LOCA Temperature Transient, Updated Worst 36-Day Temperature Period
• Figure 7.7: Case 0609: UHS LOCA Drawdown, First 30 Days of Updated Worst 36-Day Temp. Period I PROJECT NO. 11333-297 11

CALCULATION NO. L-002457 REVISION NO. 8 PAGE NO. 3]5

• Figure 7.8: Case 06e: UHS LOCA Temperature Transient, Updated Worst 30-Day Evaporation Period

      #   Figure 7.9: Case06e: UHS LOCA Drawdown Updated Worst 30 Day Evaporation Period 4   Figure 7.10: Case 1809: UHS LOCA Temperature Transient, Updated Worst 36-Day Temperature Period

• Figure 7.11: Case 1809: UHS LOCA Drawdown, First 30 Days of Updated Worst 36-Day Temp. Period 0 Figure 7.12: Case 18e: UHS LOCA Temperature Transient, Updated Worst 30-Day Evaporation Period

      #    Figure 7.13: Case 18e: UHS LOCA Drawdown, Updated Worst 30-Day Evaporation Period
      #   Figure 7.14: UHS Heat Load Following LOCA

• Figure G7. 1: UHS Outlet Temperature vs. Days After SCRAM 0 Figure G7.2: UHS Inlet Temperature vs. Days After SCRAM 4 Figure G7.3: Limiting Lake Temperatures vs. Time of Day - Recreation of Figure 7.1 from main body of calculation 4 Figure H7.1: 1/30 Plant Inlet Temperature vs. Day
• Figure H7.2: 1/30 Plant Outlet Temperature vs. Day
• Figure H7.3: 5/1/30 Plant Inlet Temperature vs. Day
• Figure H7.4 5/1/30 Plant Outlet Temperature vs. Day
• Figure H7.5: Case 3a: UHS LOCA Temperature Transient, Worst 31-Day Temperature Period
• Figure H7.6: Case 3b: UHS LOCA Temperature Transient, Worst 36-Day Temperature Period
• Figure H7.7: Case 3c: UHS LOCA Drawdown, Worst 30-Day Evaporation Weather Period Revision 7 SFigure 17.1: Plant Outlet Temperature (MUR PU)

      # Figure    17.2: Plant Outlet Temperature (EPU)
      + Figure    17.3: Plant Inlet Temperature (MUR PU)

• Figure 17.4: Plant Outlet Temperature (EPU)
• Figure 17.5: Case 3aMUR: UHS LOCA Temperature Transient, Worst 31-Day Temperature Period 4 Figure 17.6: Case 4aMUR: UHS LOCA Temperature Transient, Worst 31-Day Temperature Period

      # Figure    17.7: Case 3a: UHS LOCA Temperature Transient, Worst 31-Day Temperature Period

• Figure 17.8: Case 4a: UHS LOCA Temperature Transient, Worst 31-Day Temperature Period
• Figure 17.9: Case Ic_MUR: UHS LOCA Drawdown, Worst 30-Day Evaporation Weather Period SFigure 17. 10: Case Ic: UHS LOCA Drawdown, Worst 30-Day Evaporation Weather Period Revision 8
• Figure 02.1: Existing UHS Model
• Figure 02.2: Modified UHS Model for Mixing Effects
• Figure 02.3: MIT Report 161 [Ref. 05.7] Two Stage Pond
• Figure 07.1: Case 3a_6AM: UHS LOCA Temperature Transient, Worst 33-Day Temperature Period
• Figure 07.2: Case Ic: UHS LOCA Drawdown, Worst 30 Day Evaporation Weather Period

      # Figure 08.2-1: Five Day Temperature Profile for the 10% Mixing Case
      # Figure 08.2-2: Five Day Temperature Profile for the 20% Mixing Case
      # Figure 08.2-3: Plant Inlet Temperature for 6AM Cases

• Figure 08.2-4: Case Mixing - 10% - 9AM Results 4 Figure 08.2-5: Case Mixing - 20% - 12PM Results 7.5 Recommendations None.

I PROJECT NO. 11333-297 1I

CALCULATION NO. L-002457 REVISION NO. 8 PAGE NO. 36 Table 6.1: Determination of UHS Area- Capacity Profiles (1 of 2) with No Sediment with 0.5 feet of Sediment Surface Incrementae Total Surface Incremental Total Elevation Slice Area Volume Volume Elevation Slice Area Volume Volume (feet Number (acres) (acre-feet) (acre-feet) (feet) Number (acres) (acre-feet) (acre-feet) f_

t0.5000

_ 0,5000 675 0.0076 - 675.500 0.0076 15 0.03 15 0.03 676 0.0640 0.03- 676.500 0.0640 0.0a 14 0.12 1 14 0.12 677 "' 0.1857 0.15 1677.500 0.1857 0.15 13 0.26 13 0.25 678 0.3263 0.40 678.500 0.326 0.40 12 0.33 12 0.33 12 (Ad0) 3.4397 2.27 . -- "" 12 (Ad)) 3.44 .2.27 12 (AdJ) 1.66 12 (Adj) 1.66 679 .61493 4.66 679.500 5.15 4.66 __ _ _5.73 11 "__.73 680 6.3270 10.39 1680.500 6.33 10.39 10 7.20 10 7.20 681 8.1173 17.59 681.500 8.12 17.59 9 _ _8.91 9 8.9l 682 9.7301 26.50 682.500 9.73 26.50 8 10.89 T' 10.89 683 12.0857 37.39 683.500 12.09 37.39 7 13.40 7 13.40 684 14.7500 50.79 684.500 14.75 50.79 6 21.79 6 21.79 6 (Adj) 0.84 6 fA) .- -0.84 685 29.6984 71.74 (0.5)(6) " 9.18 5 29.70 685.000 22.22 59.07 76 5 (Adj) 32.33 21.67 _,_,'86 " 27.78 5 (Adj) 19.54 685.500 29.70 71.74 688 77.3331 142.64 5 29.70 4 78.15 5 (AdJ) 32.34 21.87 687 78.9604 220.79 5 (AMj) 19.54 3 79.75 686.000 29.70 102.18 688 80.5479 300.54 a48 63.72 2 81.35 686.500 77.33 142.64 689 82.1516 381.89 4 78.15 1 82.99 687.000 78.18 181.84 690 83.8297 464.88 3M4 78.96 687.500 78.96 220.79

                                                                                 '3                           79.75 688.000

____ 283 79.75 80.55 260.79 688.500 2_3 80.55 _0.__ 300.54 2 81.35 1 689.000 8 81.35 .... 341.34 1&2 82.16 1689.500 82.15 381.89 1 82.99 1690.000 82.99 423.50

                                                            -_6_90.500         __            83.83                      1 464.88 PROJECT NO. 11333-297

CALCULATION NO. L-002457 REVISION NO. 8 PAGE NO. 37 Table 6.1: Determination of URS Area- Capacity Profiles (2 of 2) 1... fee of Seiment with 1 feet of Sediment t 1.5 feet of Sediment Total Surface Incremental Total Surface Incremental Total Elevation Sfice Area Volume Volume Elevton Slice Area Volume Volume (feet) Number (acres) (acre-feet) (acre-feet) (feet) Number (acres) (acre-feet) (acre-feet) 0.5000 0.5000 .. 676 - 0.0076 .03 676.500 0.0076 0 .03 s 0.03 15 0 '.03 677 144 0.0640 o.12 0.12 0.03 _____14 677.500 0.0640 0.12 0.03 678 0.1857 0.15 678.500 0.1857 0.25 S13 0.25 _____ ____ 13 0.25 _____ 679 0.3263 0.40 679.500 0.3263 0.40 12 0.33 12 0.33

   -           12 (AdJ)        3.4397                2.27                                     12 (AdD         3.4397              2.27 12 (Adj)                              1.66                                   - 12 (Adj)                             1.66             4.66 68 0 11 5 .14 9 3                 5 .73 5.73 4 .66      6 8 0 .5 0 0                   5 .149 3                                604.

_____ _____11 _____ 5.73 ____

    '     1681    10          6.3270 7.20
                                                      .20          10.39 681.500

____ 10 ____ 6.3270 7.20 10.39 682 8.1173 17.60 682.500 8.1173 We_ 17.59 9 8.91 " .91 09 683 9.7301 -' 26.51 683.500 9.7301 26.50 8 10.89 8o 10.80 884 12.0857 37.39 684.500 12.0857 37.39 7 13.40 7 13.40 685 14.7500 50.79 (0.6)(71 .0.37 8 21.79 685.000 13.42 43.76 6 (Adj) -0.84 667 '16.22 686 29.6984 71.74 685.500 14.7500 .50.70 5 29.70 5 21.79 ____-.8 5 (Ad) 32.3376 21.67 6 (Ad) -0.84 667 5 (Adj) 77.3331 ____ 19.54 142.65 686.000 ___ 68.6 22.22 27.78 69.98 4 78.15 88.500 29.6984 71.74 688 78.9604 220.79 5 20.70 3 79.75 5 (AdJ) 32.34 21.67 689 80.5479 300.55 5 (Ad)) 19.54 2 81.35 687.000 29.70 102.19 6 90 8____ 2 .1 5 16 38 1.89 _____ 687.500 ___ 4 &5 7 7 .33 3 1 77.3331 _____ 53 .72 1 4 2 .64 142.64 4 78.15 _6.000 78.15 1811.8 _34 78.96 688.500 78.9604 220.79 ___________ ______ _____ _____ 3 70.765 ____ 689.000 3 79.785 7_.76 260.81 2&3 80.55 689.500 80.5479 300.54 ___ ___2 6"1.35 ' 690.000 81.35 341.36 690.500 82.1516 "" 381.89 I.______________+__ PROJECT NO. 11333-297

CALCULATION NO. L-002457 REVISION NO. 8 PAGE NO. 38 Table 7.1 - UHS Area-Capacity Inputs for LAKET-PC II I I I i fWith No Sediment I With 0.5 feet of Sediment With 1.0 feet of Sediment With 1.5 feet of Sediment Elevation Surface Area Volume - Surface Area Volume Su-ae-Aea Volum Surface *eal Volume (feet) (acres) (acre-feet) (acres acre- (acres) (aace-feete (acres) acre-685 _ 97 172.260.0 1 14.75 - 50.8 13.4 1 3. 686 _ 77.33 142.6 29.70 102.2 29.70 71.7 22.22] 60.0 687 78.96 220.8 78.15 181.8 77.33 142.6 29.70 102.2 688 80.55 300.5 79.75 260.8 78.96 220.8 78.15 1 181.9 689 82.15 381.9 81.35 341.4 80.55 300.5 79.75 1 260.8 690 83.83 464.9 82.99 423.5 82.15 381.9 81.35 ] 341.4 PROJECT NO. 11333-297

CALCULATION NO. L-002457 REVISION NO. 8 PAGE NO. 39 Table 7.2 - Plant Temperature Rise (1 of 6) CSCS Flowrate 86 cfs Mass Flow 19,201,392 Ibmlhr Density 62.02 Ibm/ft3 Cp I BtuIbmi/F Starting Ending Temperature Heat Rate Heat Added Total Heat Generated Sensible Time Time Rase per Timestep in Timestep Added Heat Added Heat Added (hr) (hr) (Deg F) (BTU/hr) (BTU) (BTU) (BTU) (BTU) 0 3 35.26 6.77E408 2.03E*09 2.03E+09 1.42E+09 6.09E+08 3 6 28.79 5.53E408 1.66E-09 3.69E+09 2.47E+09 1.22E+09 6 9 16.68 3.20E+08 9.61E+08 4.65E+09 3.43E÷09 1.22E+09 9 12 16.28 3.13E408 9.38E*08 5.59E*09 4.37E+09 1.22E+09 12 15 15.32 2.94E+08 8.83E+08 6.47E+09 5.25E+09 1"22E+09 15 18 14.97 2.67E408 8.62E+08 7.33E409 6.11 E+09 1.22E+09 18 21 14.53 2.79E+08 8.37E+08 8.17E+09 6.95E+09 1.22E+09 21 24 14.29 2.74E+08 8.23E+08 8.99E609 7.77E+09 1.22E+09 24 27 13.88 2.67E*08 8.00E+08 9.79E+09 8.57E+09 1.22E+09 27 30 13.45 2.58E÷08 7.75E+08 1.06E+10 9.35E.09 .22E+09 30 33 13.30 2.55E+08 7.66E+08 1.13E410 1.01 E10 11.22E+09 33 36 13.30 2.55E+08 7.66E+08 1.21E+10 1.09E+10 1.22E+09 36 39 13.30 2.55E-+08 7.66E+08 1.29E410 1.16E+10 1.22E+09 39 42 13.24 2.54E+08 7.62E*08 1.36E+10 1.24E610 1.22E+09 42 45 12.73 2.44E608 7.33E*08 1.44E.+10 1.31 E÷10 1.22E+09 45 48 12.73 2.44E+08 7.33E+08 1.51E*10 1.39E+10 1.22E+09 48 51 12.57 2.41E+08 7.24E+08 1.58E+10 1.46E÷10 1.22E+09 51 54 12.43 2.39E+08 7.16E+08 1.65E+10 1.53E÷10 1.22E+09 54 57 12.24 2.35E+08 7.05E408 1.72E+10 1.60E+10 1.22E+09 57 60 12.02 2.31E+08 6.93E+08 1.79E410 1.67E+10 I.22E+09 60 63 12.02 2.31E+08 6.93E+08 1.86E+10 1.74E+10 1.22E+09 63 66 12.02 2.31E+08 6.93E+08 1.93E*10 1.81 E410 1.22E+09 66 69 12.02 2.31E+08 6.93E+08 2.OOE410 1.88E+10 1.22E÷09 69 72 12.01 2.31E+08 6.92E+08 2.07E+10 1.95E+10 1.22E+09 72 75 11.49 2.21 E+08 6.62E+08 2.14E+10 2.01 E+10 1.22E+09 75 78 11.49 2.21E+08 6.62E+08 2.20E+10 2.08E+10 1.22E+09 78 81 11.49 2.21 E+08 6.62E*08 2.27E÷10 2.15E+10 1.22E÷09 81 84...- 11.48 2.21E+08 6.62E+08 2.33E+10 2.21 E÷10 1.22E+09 84 87 11.49 221E÷08 6.62E+08 2.40E+10 2.28E+10 1.22E÷09 87 90 11.49 221 E+08 6.62E+08 2.47E+10 2.35E+10 1.22E609 90 93 11.49 2.21E*08 6.62E+08 2.53E410 2.41 E+10 1.22E+09 93 96 11.49 221E+08 6.62E+08 2.60E+10 2.48E+10 1.22E+09 96 99 11.09 2.13E+08 6.39E+08 2.66E+10 2.54E+10 122E+09 99 102 11.07 2.13E+08 6.38E+08 2.73E410 2.61 E+ 10 1.22E+09 102 105 11.07 2.13E608 6.38E+08 2.79E÷10 2.67E÷10 1.22E÷09 105 108 11.07 2.13E+08 6.38E+08 2.85E+10 2.73E+10 1.22E+09 108 111 11.07 2.13E408 6.38E.08 2.92E+10 2.80E+10 1.22E+09 111 114 10.87 2.09E*08 6.26E+08 2.98E+10 2.86E+10 1.22E+09 114 117 10.86 2.09E.08 626E+08 3.04E+10 2.92E+10 1.22E409 117 120 10.86 2.09E+08 6.26E+08 3.11E+10 2.98Ee10 1.22E,09 120 123 10.50 2.02E+08 6.0)5E08 3.17E+10 3.04E410 1.22E+09 123 126 10.50 2.02E608 6.05E+08 3.23Ea10 3.11 E+10 1.22E÷09 126 129 10.50 2.02E+08 6.05E+08 3.29E+10 3.17E+10 1.22E409 129 132 10.50 2.02E+08 6.05E+08 3.35E+10 3.23E÷10 1.22E÷09 132 135 10.50 2.02E+08 6.05E+08 3.41E+10 3.29E+10 1.22E+09 135 138 10.50 2.02E408 6.05E+08 3.47E+10 3.35E+10 1.22E+09 138 141 10.50 2.02E+08 6.05E+08 3.53E+10 3.41 E+10 1.22E+09 Note Th-- table represents historical input for the Rev. 3 analysis and earlier. Rev. 4 and Rev. 5 analyses are based on plant temperature rise data presented in Attachment G.

CALCULATION NO. L-002457 REVISION NO. 8 PAGE NO. 40 Table 7.2 - Plant Temperature Kise (2 of 6) Starting Ending Plant Heat Rate Heat Added Total Heat Generated Sensible Time Time Temperature per Timestep in Timestep Added Heat Added Heat Added (hr) (hr) (Deg F) (BTUihr) (BTU) (BTU) (BTU) (BTU) 141 144 10.50 2.02E+08 6.05E+08 3.59E+10 3.47E÷10 1.22E+09 144 147 10.50 2.02E+08 6.05E408 3.65E+10 3.53E410 1122E+09. 147 150 10.50 2.02E+08 6.05E+08 3.71E+10 3.59E+10 1.22E(09 I50 153 10.50 2.02E+08 6.05E+08 3.77E+10 3.65E+10 1.22E+09 153 156 10.50 2.02E+08 6.05E+08 3.83E*10 3.71 E+10 1.22E+09 156 159 10.50 2.02E+08 6.05E408 3.89E+10 3.77E+10 1.22E+09 159 162 10.50 2.02E+08 6.05E+08 3.95E+10 3.83E+10 1.22E+09 162 165 10.50 2.02E+08 6.05E+08 4.01E+10 3.89E+10 1.22E+09 165 168 10.27 1.97E+08 5.92E+08 4.07E+10 3.95E+10 1.22E+09 168 171 9.99 1.92E*08 5.75E+08 4.13E+10 4.01 E+10 1.22E+09 171 174 9.99 1.92E+08 5.75E+08 4.19E+10 4.07E+10 1.22E+09 174 177 9.99 1.92E*08 5.75E+08 4.25E+10 4.12E+10 1.22E+09 177 180 9.99 1.92E+08 5.75E+08 4.30E+10 4.18E+10 1.22E+09 180 183 9.99 1.92E+08 5.75E*08 4.36E+10 4.24E+10 1.22E+09 183 186 9.99 1.92E+08 5.75E+08 4.42E410 4.30E÷10 1.22E+09 186 189 9.99 1.92E+08 5.75E+08 4.48E+10 4.35E+10 1.22E+09 189 192 9.99 1.92E+08 5.75E+08 4.53E+10 4.41 E+IO 1.22E+09 192 195 9.99 1.92E+08 5.75E+08 4.59E+10 4.47E÷10 1.22E+09 195 198 9.99 1.92E+08 5.75E+08 4.65E+10 4.53E+10 1.22E+09 198 201 9.99 1.92E+08 5.75E+08 4.71E+10 4.58E+10 1.22E+09 201 204 9.99 1.92E+08 5.75E+08 4.76E+10 4.64E+10 1.22E+09 204 207 9.99 1.92E+08 5.75E+08 4.82E,'10 4.70E+10 1.22E409 207 210 9.99 1.92E+08 5.75E+08 4.88E+10 4.76E+10 1.22E+09 210 213 9.99 1.92E+08 5.75E+08 4.94E+10 4.81 E÷10 1.22E+09 213 216 9.99 1.92E+08 5.75E+08 4.99E+10 4.87E+10 1.22E+09 216 219 9.99 1.92E+08 5.75E+08 5.05E+10 4.93E+10 1.22E+09 219 222 9.99 1.92E+08 5.75E+08 5.11E+10 4.99E+10 1.22E+09 222 225 9.72 1.87E+08 5.60E+08 5.16E+10 5.04E+10 1.22E+09 225 228 9.70 1.86E+08 5.59E+03 5.22E+10 5.10E+10 1.22E+09 228 231 9.70 1.86E+08 5.59E408 5.28E+10 5.15E+10 1.22E+09 231 234 9.70 1.86E+08 5.59E+08 5.33E+ 10 5.21 E+IO 1.22E÷09 234 237 9.70 1.86E+08 5.59E+08 5.39E+ 10 5.27E+10 1.22E+09 237 240 9.70 1.86E+08 5.59E+08 5.44E+10 5.32E+10 1.22E+09 240 243 9.54 1.83E+08 5.50E+08 5.50E+10 5.383E+10 1.22E+09 243 246 9.54 1.83E+08 5.50E+08 5.55E+10 5.43E+10 1.22E+09 246 249 9.54 1.83E+08 5.50E+08 5.61E+10 5.49E+10 1.22E+09 249 252 9.54 1.83E÷08 5.506E08 5.66E6 10 5.54E+10 1.22E609 252 255 9.54 1.83E+08 5.50E+08 5.72E+10 5.60E610 1.22E+09 255 258 9.54 1.83E+08 5.50E+08 5.77E÷10 5.65E+10 1.22E+09 258 261 9.54 1.83E+08 5.5OE408 5.83E+10 5.71 E610 1.22E+09 261 264 9.54 1.83E+08 5.50E+08 5.88E+10 5.76E+10 1.22E+09 264 267 9.54 1.83E+08 5.50E+08 5.94E+10 5.82E+10 1.22E+09 267 270 9.54 1.83E+08 5.50E+08 5.99E+10 5.87E410 1.22E+09 270 273 9.54 1.83E408 5.50E+08 6.05E+10 5.93E+10 1.22E+09 273 276 9.54 1.83E+08 5.50E+08 6.10E+10 5.98E+10 1.22E+09 276 279 9.40 1.80E+08 5.41E+08 6.16E+10 6.04E+10 1.22E+09 279 282 9.19 1.76E+08 5.29E+08 6.21 E+10 6.09E+10 1.22E+09 282 285 9.19 1.76E+08 I 5.29E+08 6.26E+10 6.14E+10 1.22E+09 285 288 9.19 1,76E+08 5.29E-08 6.32E+10 6.19E+10 1.22E+09 Note: This table represents historical input for the Rev. 3 analysis and earlier. Rev. 4 and Rev. 5 analyses are based on plant temperature rise data presented in Attachment G.

CALCULATION NO. L-002457 REVISION NO. 8 PAGE NO. 41 Table 7.2 - Plant Temperature Rise (3 of 6) Starting Ending Heat Rate Heat Added Total Heat Generated Sensible trime Time Temperature per Timestep in Timestep Added Heat Added Heat Added (hr) (hr) s(Deg

                                         )          (BTU/ht)            (BTU)          (BTU)         (B'TU)         (BTU) 288           291              9.19            1.76E+08           5.29E+08       6.37E+10      6.25E'+10      1.22E+09 291           294              9.19            1.76E+08           5.29E+08       6.42E-'10     6.30E÷10       1.22E+09 294           297              9.19            1.76E.08          5.29E+08        6.48E410      6.35E+10       1.22E409
   .297           300              9.19            1.76E408          5.29E÷08        6.53E+10      6.41 E410      1.22E+09 300           303              9.19            1.76E+08          5.29E+08        6.58E+10      6.46E+10       1.22E+09 303           306              9.19            1.76E+08          5.29E+08        6.63E+10      6.51 E+10      1.22E+09 306           309              9.19            1.76E+08          5.29E+08       6.69E+10       6.57 E+10      1.22E+09 309           312              9.19            1.76E+08          5.29E+08       6.74E+10       6.62E+10       1.22E+09 312            315              9.19            1.76E+08          5.29E+08       6.79E+10       6.67E+10       1.22E+09 315            318              9.19            1.76E+08          5.29E+08       6.85E+10       6.72E+10       1.22E+09 318            321              9.19            1.76E+08          5.29E+08       6.90E410       6.78E+10       122E+09 321            324              9.19            1.76E+08          529E+08        6.95E+10       6.83E+10       1.22E+09 324            327              9.19            1.76E+08          5.29E+08       7.00E-10       6.88E+10       1.22E+09 327            330              9.19            1.76E+08          5.29E+08       7.06E+10      6.94E+10        1.22E+09 330            333              9.19            1.76E+08          5.29E+08       7.11E+10      6.99E+10        1.22E+09 333            336              9.19            1.76E+08          5.29E÷08       7.16E+10       7.04 E' 10     1.22E+09 336            339              9.19            1.76E-08          5.29E+06       7.22E+10      7.09E+10       122E*09 339            342              9.19            1.76E+08          529E+08        7.27E+10      7.15E+10       122E+09 342            345              9.19            1.76E+06          5.29E408       7.32E-10      7.20E+10       1.22E.-09 345            348              9.19           1.76E+08           5.29E+08       7.37E410      7.25E+10       1.22E*09 348            351              9.19           1.76E+08          5.29E-+08       7.43E.+10     7.31 E+10      1.22E+09 351            354             9.19            1.76E+08          5.29E*08        7.48E410      7.36E+10       1.22E.09 354             357             9.19            1.76E+08          5.29E+08        7.53E,10      7.41 E+10      1.22E409 357             360             9.19            1.76E+08          5.29E'08        7.59E+10      7.46E+10       1.22E+09 360             363             9.19            1.76E+08          5.29E+08        7.64E#10      7.52E÷10       1.22E+09 363            366              9.19            1.76E+08          5.29E+08        7.69E+10      7.57E+10       122E+09 366             369             9.19            1.76E-08          5.29E+08        7.75E÷10      7.62E+10       122E+09 369            372              9.19            1.76E+08          529E+08        7.80E+10       7.68E+10       122E+09 372            375              9.19            1.76E+08          529E*08        7.85E+10       7.73E+10       122E+09 375            378              9.19            1.76E+08          529E-+08       7.90E*10       7.78E+10       122E+09 378            381              9.19            1.76E+08          5.29E406       7.96E+10       7.84E+10       1.22E+09 381            384              9.19            1.76E+08          529E+06        8.01El10       7.89E÷10       1.22E+09 384            387              9.19            1.76E+08          5.29E+08       8.06E÷10       7.94E÷10       1.22E+09 387            390              9.19            1.76E+06          5.29E+08       8.12E+10       7.99E+10       1.22E-09 390            393              9.19            1.76E+08          5.29E+08       8.17E+ 10      8.05E+10      1.22E+09 393            396              9.19            1.76E+08          5.29E408       8.22E+10      8.1OE+10       1.22E+09 396            399              9.19            1.76E+08          5.29E+08       8.27E+10       8.15E+10      1.22E+09 399            402              9.19            1.76E+08          529E+08        8.33E.10      8.21 E+10      1.22E+09 402            405              9.19            1.76E+08          5.29E+08       8.38E+10      8.26E+10       1.22E+09 405            408              9.19           1.76E+08           5.29E+08       8.43E+10      8.31 E+10      1.22E+09 408            411              9.19           1.76E+08           5.29E+08       8.49E+10      8.36E+10       1.22E+09 411            414             9.19            1.76E+08           5.29E.08       8.54E'10      8.42E+10       1.22E+09 414            417             9.15            1.76E.08           5.27E+08       8.59E÷10      8.47E.+10      1.22E+09 417            420             8.85            1.70E+08          5.10E÷08        8.64E+10      8.52E÷10       1.22E+09 420            423             8.85            1.70E+08          5.10E+08        8.69E+10      8.57E+10       1.22E+09 423            426              8.85            1.70E+08          5.10E+08       8.74E+10       8.62E÷10       1.22E+09 426            429              8.85            1.70E÷08          5.10E+08       8.80E+10       8.67E÷10       1.22E+09 429            432              8.85            1.70E008          5.1 OE.08      8.85E.10       8.72E+10       1.22E.+09 432            435              8.85            1.70E+08 I5.10E08                8.90E+10       8.78E÷10       1.22E'09 Note: This table represents historical input for the Rev. 3 analysis and earlier. Rev. 4 and Rev. 5 analyses are based on plant temperature rise data presented in Attachment G.

CALCULATION NO. L-002457 REVISION NO. 8 PAGE NO. 42 Table 7.2 - Plant Temperature Rise (4 of 6) Starting Ending Plant Heat Rate Heat Added Total Heal Generated Sensible Time Time TimeRise Time Temperature per Timestep In Timestep Added Heat Added Heat Added (hr) (hr) (Deg F) (BTU/hr) (BTU) (BTU) (BTU) (BTU) 435 438 8.85 1.70E+08 5.10E408 8.95E-10 8.83E+10 1.22E+09 438 441 8.85 1.70E+08 5.10E408 9.00E410 8.88E÷10 1.22E÷09 441 444 8.85 1.70E+08 5.1OE.08 9.05E+10 8.93E+10 1.22E+09 444 447 8.85 1.70E+08 5.10E+08 9.10E+10 8.98E+10 122E+09 447 450 8.85 1.70E÷08 5.10E408 9.15E+10 9.03E+10 1.22E+09 450 453 8.85 1.70E+08 5.1OE+08 9.20E+10 9.08E+10 1.22E+09 453 456 8.85 1.70E÷08 5.10E5+08 9.25E+10 9.13E+10 1.22E*09 456 459 8.85 1.70E+08 5.10E+08 9.31E+10 9.18E+10 1.22E+09 459 462 8.85 1.70E408 5.10E408 9.36E+10 9.23E+10 1.22E+09 462 465 8.85 1.70E+08 5.10E+08 9.41E+10 929E+10 1.22E+09 465 468 8.85 1.70E+08 5.10E+08 9.46E+10 9.34E+10 1.22E+09 468 471 8.85 1.70E+08 5.1OE+08 9.51E+10 9.39E,10 1.22E+09 471 474 8.85 1.70E+08 5.10E+08 9.56E+10 9.44E+10 1.22E+09 474 477 8.85 1.70E+08 5.10E+08 9.61E-+10 9.49E+10 1.22E+09 477 480 8.85 1.70E+08 5.10E+08 9.66E+10 9.54E+10 1.22E÷09 480 483 8.72 1.68E+08 5.03E+08 9.71E+10 9.59E+10 I1.22E409 483 486 8.70 1.67E+08 5.01E+08 9.76E+10 9.64 E, 10 1.22E+09 486 489 8.70 1.67E+08 5.01E+08 9.81E+10 9.69E.10 1.22E+09 489 492 8.70 1.67E408 5.01E+08 9.86E510 9.74E+10 1.22E+09 492 495 8.70 1.67E-08 5.01E+08 9.91E÷10 9.79E+10 1.22E+09 495 498 8.70 1.67E+08 5.015E08 9.96E. 10 9.84E+10 1.22E+09 498 501 8.70 1.67E+08 5.01E+08 1.00E+11 9.89E÷10 1.22E+09 501 504 8.70 1.67E*08 5.01E+08 1.01E511 9.94E+10 1.22E+09 504 507 8.70 1.67E+08 5.01E408 1.01 E 11 9.99E'10 1.22*+09 507 510 8.70 1.67E+08 5.01E+08 1.02E+11 1.00E+11 1.22E+09 510 513 8.70 1.67E+08 5.01E+08 1.02E+11 1.011E+11 1.22E+09 513 516 8.70 1.67E+08 5.01E+08 1.03E+11 1.01E+11 1.22E+09 516 519 8.70 1.67E+08 5.01E.08 1.03E+11 1.02E+11 1.22E+09 519 522 8.70 1.67E+08 5.01E+08 1.04E+11 1.02E+11 1.22E109 522 525 8.70 1.67E÷08 5,01E408 1.04E+11 1.031E+11 1.22E+09 525 528 8.70 1.67E÷08 5.01E+08 1.05E411 1.03E-11 1.22E*09 528 531 8.70 1.67E508 5.01 E08 1.05E+11 1.04E+11 1.22E+09 531 534 8.70 1.67E÷08 5.01E+08 1.06E+11 1.04E+11 1.22E+09 534 537 8.70 1.67E+08 5.01 E408 1.06E411 1.051E+11 1.22E+09 537 540 8.70 1.67E+08 5.015E4 08 1.07E5#11 1.05E+11 1.22E+09 540 543 8.70 1.67E+08 5.01 E+08 1.07E+11 1.061E11 1.22E+09 543 546 8.70 1.67E÷08 5.01E+08 1.08E411 1.06E+11 1.22E+09 546 549 8.70 1.67E+08 5.01E408 1.08E411 1.07E+11 1.22E+09 549 552 8.70 1.67E+08 5.01E408 1.09E+11 1.07E+11 1.22E509 552 555 8.70 1.67E+08 5.01E5(08 1.09E511 1.08E+11 1.22E+09 555 558 8.52 1.64E÷08 4.91E+08 1.10E+11 1.08E÷11 1.22E+09 558 561 8.49 1.63E+08 4.89E.08 1.10E-+11 i.09E+11 1.22E+09 561 564 8.49 1.63E+08 4.89E.08 1.11E-11 1.09E+11 1.22E+09 564 567 8.49 1.63E+08 4.89E*08 1.11E+11 1.10E÷11 1.22E+09 567 570 8.49 1.63E+08 4.89E+08 1.12E+11 1.10E+11 1.22E÷09 570 573 8.49 1.63E+08 4.89E-08 1.12E-+11 1.11 E+1I 1.22E+09 573 576 8.49 1.63E+08 4.89E.08 1.13E-+11 1.11 E+11 1.22E+09 576 579 8.49 1.63E408 4.89E'08 1.13E+11 1.12E+11 122E+09 579 582 8.49 1.63E408 4.89E-+08 1.14E+11 1.12E+11 1.22E+09 Note: This table represents historical input for ihe Rev. 3 analysis and earlier. Rev. 4 and Rev. 5 analyses are based on plant temperature rise data presented in Attachment G.

CALCULATION NO. L-002457 REVISION NO. 8 PAGE NO. 43 Table 7.2 - Plant Temperature Rise (5 of 6) Starting Ending Plant Heat Rate Heat Added Total Heat Generated Sensible Time Time Temperature per Timestep in Timestep Added Heat Added Heat Added (hr) (Deg F) (BTU/hr) (BTU) (BTU) (BTU) (BTU) 582 585 8.49 1.63E+08 4.89E+08 1.14E+11 1.13E+11 1.22E+09 585 588 8.49 1.63E+08 4.89E+08 1.15E+11 1.13E+11 122E+09 588 591 8.49 1.63E.08 4.89E+08 1.115E11 1.14E+11 1.22E+09 591 594 8.49 1.63E*08 4.89E+08 1.16E-11 1.14E+11 1222E+09 594 597 8.49 1.63E+08 4.89E-+08 1.16E+11 1.15E+11 1.22E+09 597 600 8.49 1.63E408 4.89E208 1.16E+11 1.15E+11 1.22E+09 600 603 8.49 1.63E+08 4.89E÷08 1.17E1*1 1.16E11 I1.22E+09 603 606 8.49 t.63E.08 4.89E+08 1.17E+11 1.16E+11 1.22E+09 606 609 8.49 1.63E+08 4.89E+08 1.18E411 1.17E.11 1.22E+09 609 612 8.49 1.63E+08 4.89E+08 1.18E+11 I.17E+11 1.22E+09 612 615 8.49 1.63E+08 4.89E+08 1.19E+11 1.18E+11 1.22E+09 615 618 8.49 1.63E+08 4.89E+08 1.19E+11 1.18E+11 12.2E+09 618 621 8.49 1.63E*08 4.89E+08 1.20E+11 1.19E1'1 1.22E+09 621 624 8.49 1.63E+08 4.89E208 1.20E+11 I1.19E+11 1.22E+09 624 627 8.49 1.63E+08 4.89E+08 1.21E.11 1.20E+11 1.22E+09 627 630 8.49 1.63E+08 4.89E+08 121E211 1.20E+11 1.22E+09 630 633 8.49 1.63E+08 4.892+08 1.22E-+11 1.21 E+ 11 1.22E+09 633 636 8.49 1.63E+08 4.89E+08 1.222E+ 11 1.21 E+11 1.22E+09 636 639 8.49 1.63E+08 4.89E208 1.23E211 1.22E+II 1.22E+09 639 642 8.49 1.63E+08 4.89E+08 1.23E2 11 1.22E+11 1.22E+09 642 645 8.49 1.63E+08 4.89E208 1.24E+11 1.23E+11 1.22E+09 645 648 8.49 1.63E+08 4.89E+08 1.24E+11 1.23E+11 1.22E+09 648 651 8.49 1.63E+08 4.89E208 1.25E+11 1.24E+11 1.22E+09 651 654 8.49 1.63E+08 4.89E+08 1.25E+11 1.24E+11 1.22E+09 654 657 8.49 1.63E208 4.89E+08 1.26E-+11 1.25E+11 I1.22E-+09 657 660 8.49 1.63E+08 4.89E+08 1.26E+11 1.25E+11 1.22E+09 660 663 8.49 1.63E+08 4.892+08 1.272E11 1.26E+11 1.22E+09 663 666 8.49 1.63E-+08 4.89E+08 1.27E+11 1.26E+11 1.22E+09 666 669 8.49 1.63E408 4.89E+08 1282*11 1i27E+11 1.22E+09 669 672 8.49 1.63E208 4.89E*08 1.28E+11 1.27 E+1 I 1.22E+09 672 675 8.49 1.63E208 4.89E408 129E+111 127E÷11 1.22E209 675 678 8.49 1.63E*08 4.89E+08 1i29E+11 1.28E+lI 122E+09 678 681 8.49 1.63E408 4.89E+08 1.30E.11 1.28E+1I 1.22E*09 681 684 8.49 1.63E+08 4.89E+08 1.30E+11 1.29E+l I 122E+09 684 687 8.49 1.63E+08 4.89E+08 1.31 E+11 1.29E+1I 1.22E+09 687 690 8.49 1.63E+08 4.89E+08 1.31 E411 1.30E+11 1.22E+09 690 693 8.49 1.63E+08 4.89E+08 1.32E+11 1.30E+11 122E+09 693 696 8.49 1.63E+08 4.89E*08 1.32E2 11 1.31 E+1I 1.22E+09 696 699 8.49 1.63E+08 4.89E+08 1.33E+11 1.31E+11 1.22E-09 69a 702. 8.49 1.63E#08 4.89E+08 1.33E+11 1.32E+11 _ 1.22E+09 702 705 8.49 1.63E208 4.89E+08 1.34E+11 1.32E+11 1.22E+09 705 708 8.49 1.63E+08 4.89E+08 1.34E+11 1.33E+11 1.22E-+09 708 711 8.49 1.63E+08 4.89E+08 1.35E+11 1.33E+11 1,22E+09 711 714 8.49 1.63E+08 4.89E+08 1.35E+11 1.34E+11 1.22E+09 714 717 8.49 1.63E+08 4.89E.+08 1.36E+11 1.34E+11 1.22E+09 717 720 8.44 1.62E408 4.86E.+08 1.36E.011 1.35E11I 1.22E+09 720 723 8.22 1.58E+08 4.73E+08 1.37E+11 1.35+1 I 1.22E+09 723 726 8.22 1.58E.+08 4.73E+08 1.37E+111 1.36E+1I 1.22E+09 726 729 8.22 1.58E208 4.73E+08 1.37E211 I 1.36E411 1.22E+09 Note: This table represents historical input for the Rev. 3 analysis and earlier. Rev. 4 and Rev. 5 analyses are based on plant temperature rise data presented in Attachment G.

CALCULATION NO. L-002457 REVISION NO. 8 PAGE NO. 44 Table 7.2 - Plant Temperature Rise (6 of 6) Starting Ending Plant Heat Rate Heat Added Total Heat Generated Sensible Time Time Temperatuie per Timestep InTimestep Added Heat Added Heat Added (hr) (hr) (Deg F) (BTU/hr) (BTU) (BTU) (BTU) (BTU) 729 732 8.22 1,58E*08 4.73E*08 1.38E+11 1.37E+11 1.22E+09 732 735 8.22 1.58E+08 4.73E+08 1.38E+11 1.37E÷11 1.22E+09 735 738 8.22 1.58E+08 4.73E408 1.39E+11 1.38E+11 1.22E+09 738 741 8.22 1.58E+08 *4.73E+08 1.39E+11 1.38E+11 1.22E+09 741 744 8.22 1.58E+08 4.73E+08 1.40E*11 1.39E+11 122E+09 744 747 8.22 1.58E+08 4.73E+08 1.40E+11 1.39E+11 122E*09 747 750 8.22 1.58E+08 4.73E+08 1.41E+11 1.40E+11 1.22E+09 750 753 8.22 1.58E+08 4.73E+08 1.41E+11 1.40E+11 122E409 753 756 8.22 1.58E-08 4.73E+08 1.42E+11 1.40E+11 1.22E+09 756 759 8.22 1.58E*08 4.73E+08 1.42E411 1.41E÷11 1.22E+09 759 762 8.22 1.58E408 4.73E+08 1.43E*11 1.41 E+11 1.22E+09 762 765 8.22 1.58E+08 4.73E.08 1.43E+11 1.42E+11 1.22E+09 765 768 8.22 1.58E+08 4.73E+08 1.44E+11 1.42E+11 1.22E+09 768 771 8.22 1.58E+08 4.73E+08 1.44E411 1.43E÷11 1.22E+09 771 774 8.22 1.58E408 4.73E+08 1.45E-+11 1.43E+11 1.22E+09 774 777 8.22 1.68E+08 4.73E*08 1.45E-+11 1.44E+11 1.22E+09 777 780 8.22 1.58E+08 4.73E+08 1.46E+ 11 1.44E+11 1.22E+09 780 783 8.22 1.58E+08 4.73E+08 1.46E+11 1.45E-11 1.22E+09 783 786 8.22 1.58E+08 4.73E+08 1.46E*11 1.45E+1I 1.22E+09 786 789 8.22 1.58E+08 4.73E+08 1.47E*11 1.46E+11 1.22E+09 789 792 8.22 1.58E+08 4.73E+08 1.47E*11 1.46E÷11 1.22E+09 792 795 8.22 1.58E÷08 4.73E+08 1.48E.1I 1.47E+11 1.22E+09 795 798 8.22 1.58E.08 4.73E+08 1.48E411 1.47E+11 1.22E+09 798 801 8.22 1.58E408 4.73E+08 1.49E+11 1.48E-11 1.22E409 801 804 8.22 1.58E+08 4.73E+08 1.49E+11 1.48E+1 I 1.22E+09 804 807 8.22 1.58E+08 4.73E+08 1.50E+11 1.49E+1 I 1.22E+09 807 810 822 1.58E+08 4.73E÷08 1.50E.11 1.49E411 1.22E+09 810 813 8.22 1.58E*08 4.73E+08 1.51E.11 1.49E+1I 1.22E+09 813 816 8.22 1.58E*08 4.73E÷08 1.51E+11 1.50E+11 I1.22E+09

 .816            819              8.22            IE58.+08.         4.73E÷08       1.52E+11       1.50E+11      1.22E+09 819            822              8.22            1.58E+08          4.73E+08       1.52E+11       1.51 E+1 1    1.22E*09 822            825              8.22            1.58E*08          4.73E+08       1.53E+11       1.51 E411     1.22E+09 825            828              8.22            1.58E+08          4.73E+08       1.53E+11       1.52E+11      1.22E+09 828            831             8.22             1.58E+08          4.73E+08       1.54E411       1.52E+11      1.22E+09 831            834              8.22             1.58E408         4.73E+08        1.54E+11       1.53E+1 I     122E+09 834            837              822              1.58E.08         4.73E+08        1.54E+11       1.53E+1I      1.22E+09 837            840              8.22             1.58E.08         4.73E+08        1.55E+11 I1.54E+11           1.22E+09 840            843              8.22             1.58E+08         4.73E408        1.55E+11       1.54E+11      1.22E+09 843            846              8.22            1.58E*08          4.73E+08        1.56E+11       1.55E+11      1.22E+09 846            849              8.22            1.58E+08          4.73E+08        1.56E+11       1.55E+11      1.22E.09 849            852              8.22            1.58E408          4.73E408        1.57E+11       1.56E+11      12.2E+09 852            855              8.22            1.58E+08          4.73E÷+08      1.57E+11       1.56E+11       1.22E*09 855            858              8.22            1.58E+08          4.73E+08       1.58E+111       1.57E+11      1.22E+09 858            861              8.22            1.58E÷08          4.73E+08       1.58E+11       1.57E+11       1.22E+09 861            864              8.22            1.58E+08          4.73E408       1.59Ei+11      1.58E÷11       1.22E+09 36 Day Average Heat Load             1.84E+08 Note: This table represents historical input for the Rev. 3 analysis and earlier. Rev. 4 and Rev. 5 analyses are based on plant temperature rise data presented in Attachment 0.

REVISION NO. 8 PAGE NO. 45 CALCULATION NO. L-002457 Table 7.3: Maximum Allowable Initial Lake Temperatures Maximum Maximum Sediment Time of Day Allowable Initial Peak 30-Day Case Umiting Weather Condition Accumulation Start Time Temperalure Temperature Drawdown 0000 _ _ __ 0.0 ft 0:00 100.0 OF 100.00 OF 0003 worst day temperature 0.0 ft 3:00 99.3 OF 99.94 OF 0006 worst day temperature 0.0 ft 6:00 98.6 OF 99.98 OF 0009 worst day temperature 0.0 ft 9:00 98.0 OF 100.00 OF 0009 worst 5/11/30 day temperatures 0.0 ft 9:00 98.0 OF 99.94 OF 1.35 ft 0012 worst 5/1/30 day temperatures 0.0 It 12:00 98.5 "F 99.99 OF 1.35 ft 0015 worst 5/1/30 day temperatures 0.0 ft 15:00 99.5 OF 99.94 OF 1.35 ft 0018 -_0.0 ft 18:00 100.0 OF 100.00"F - 0021 -_0.0 ft 21:00 100.0 OF 100.00 OF 0600 - 0.5 ft 0:00 100.0 OF 100.00 OF 0603 worst day temperature 0.5 ft 3:00 99.2 OF 99.96 OF 0606 worst day temperature 0.5 ft 6:00 97.9 OF 99.98 OF - 0609 worst 5/1/30 day temperatures 0.5 ft 9:00 97.5 "F 99.98 OF 1.35 ft 0612 worst 5/1130 day temperatures 0.5 ft 12:00 98.3 OF 99.96 OF 1.35 ft 0615 worst 511/30 day temperatures 0.5 ft 15:00 99.5 OF 99.97 OF 1.36 ft 0618 0.5 ft 18:00 100.0 OF 100.00 F - 0621 - 0.5 ft 21:00 100.06F 100.00 OF 1800 -11.5 I 0:00 100.0O°F 100.O0 OF 1803 worst day temperature 1.5 ft 3:00 98.8 OF 99.96 OF 1806 worst day temperature 1.5 ft 6:00 97.2 OF 99.98 OF - 1809 worst day temperature 1.5ft 9:00 96.5OF 99.98 OF - 1809 1812 worst 5/1/30 day worst 5/1/0 day temperatures 1.5 ft 1.5 9:00 12:00 96.5 OF 97.5 ... 99.80 "FOF 1.35 ft ft 1812 worst li3day temperatures 1.5 ff 12:00 97. "F Q9).§8'F .. . 35ff 1815 worst 5/1/30 day tempe ratures 1.5ft 15:00 99.4 F 99.97 OF 1.36 ft 1818 -_1.5 ft 18:00 100.0 OF 100.00"F - 1821 1.5 ft 21:00 100.00F 100.00 OF - 00e worst 30 day evaporation 0.0 ft 12:00 97.8 OF 99.95 "F 1.46 ft 0Be worst 30 day evaporation 0.5 ft 12:00 97.4 OF 99.97 OF 1.48 ft 18e worst 30 day evaporatIon 1.5 ft 12:00 96.8 "F 99.97 OF 1.46 It Note: The tables and figures here represent historical analysis results for the Rev. 3 calculation. Current design analysis is based on results reported in Attachment G for a 102°F plant intake temperature limit, and Attachment H for a 1047F plant intake temperature limit. These results do, however, provide the basis for the controlling time for the start of the limiting transient, 9 AM.

CALCULATION NO. L-002457 REVISION NO. 8 PAGE NO. 46 Fig. 7.1: Um"tn Lake Temperatures vs. Time of Day 101 I II A 0 z C I 0) 0 300 1200 1600 1800 2100 2400

                                                                    'Tb. of Day (h*)

Note: This table represents historical results for the Rev. 3 analysis. Rev. 4 and Rev. 5 analyses results are presented in Attachmuents G and H, respectively.

REVISION NO. 8 PAGE NO. 47 CALCULATION NO. L-002457 Fig. 7.2, Case 0009: UHS LOCA Temperature Transient Updated Worst 36-Day Temperature Period (d - 0 In, t = 0900 hba, Ti c 9&.OF) 130 110. V

• 100 i 70 9 10 1 2 13 14 i5 M6 V 18 19 20 21 212 23 24 25 25 2"1 28 20 30 31 32 33 34 35- 36 0 1 2 3 4 5 8 7 9 0sysafteSCRAM Note: The tables and figures here represent historical analysis results for the Rev. 3 calculation. Current design analysis is based on results reported in Attachment G for a 102*F plant intake temperature limit, and Attachment H for a i04OF plant intake temperature limit. These results do, however, provide the basis for the controlling time for the start of the limiting transient, 9 AM.

REVISION NO. 8 PAGE NO. 48 CALCULATION NO. L-002457 Fig. 7.3, Case 0009: UHS LOCA Drawdown First 30 Days of Updated Worst 36-Day Temperature Period (d

• 0 iN,t a 0900 hrs, Ti - 98.0F) 690.00.*

689.75 8.00Z M.25 686.75. W88.25 . 0 1 2 3 4 5 6 7 8 9 10 I1 12 13 14 15 16 17 18 19 2D 21 22 23 24 25 2e 27 28 29 30 Days itar SCRAM Note: The tables and figures here represent historical analysis results for the Rev. 3 calculation. Current design analysis is based on results reported in Attachment G for a 102*F plant intake temperature limit, and Attachment H for a 104OF plant intake temperature limit. These results do, however, provide the basis for the controlling time for the start of the limiting transient, 9 AM.

CALCULATION NO. L-002457 REVISION NO. 8 PAGE NO. 49 Fig. 7A, Case 00e: UHS LOCA Temperature Transient Updated Worst 30-Day Evaporation Period (d a 0 In, t a 1200 hrs, T1 = 97.6F) 110 I IL Days after SCRAM Note: The tables and figures here represent historical analysis results for the Rev. 3 calculation. Current design analysis is based on results reported in Attachment G for a 1027F plant intake temperature limit, and Attachment H for a 104'F plant intake temperature limit. These results do, however, provide the basis for the controlling time for the start of the limiting transient, 9 AM.

r.,*l A r'*. r" ku* * .,"l CALCULATION NO. L-002457 REVISION NO. 8 riAu PAu. oPU FMo. 7.5, Case Ofe: UNS LOCA Drawdown Updated Worst 30-Day Evaporation Period (d 0 In, t = 1200 hrs, Ti 97.6F) 690.00 6W9.75 60.50-I M.00 N8.75 0 1 2 3 4 S 6 7 8 9 18 0 11 12 13 14 15 16 17 19 20 21 22 23 24 .25 2 27 2S 2g. 30 DaYs ardr SCRAM Note: The tables and figures here represent historical analysis results for the Rev. 3 calculation. Current design analysis is based on results reported in Attachment G for a 1020 F plant intake temperature limit, and Attachment H for a 104OF plant intake temperature limit. These results do, however, provide the basis for the controlling time for the start of the limiting transient, 9 AM.

REVISION NO. 8 PAGE NO. 51 CALCULATION NO. L-002457 Fig. ?.6, Case 0609: UKS LOCA Temperature Transient Updated Worst 36-Day Temperature Period (d a 6 In, t a 0900 hrs, Ti = 97.5F) I I. I-U I C 0 1 2 3 4 5 6 7 8 9 1 11 12 13 14 15 16 17 18 19 2D 21 22 23 24 5 2s 27 28 20 30 31 32 33 34 35 36 Dya aftir SCRAM Note: The tables and figures here represent historical analysis results for the Rev. 3 calculation. Current design analysis is based on results reported in Attachment G for a 1027 plant intake temperature limit, and Attachment H for a 104OF plant intake temperature limit. These results do, however, provide the basis for the controiling time for the start of the limiting transient, 9 AM.

CALCULATION NO. L-002457 REVISION NO. 8 PAGE NO. 52 Fig. 7.7, Case 0609: UHS LOCA Drawdown First 30 Days of Updated Worst 36-Day Temperature Period (d = 6 in,

• 0900 haM,TI = 97.5F) 89025 eM8825 eGM.oo a88.75 888.50 0 1 (s~

2 3 4 5 6 1 8 0 10 11 12 13Da. 14 15 10 17 18 19) 2D 21 22 23 24 2s 26. 27 28 20 30 I.SCA Dey aner WA Note: The tables and figures here represent historical analysis results for the Rev. 3 calculation. Current design analysis is based on results reported in Attachment G for a 102OF plant intake temperature limit, and Attachment H for a 104'F plant intake temperature limit. These results do, however, provide the basis for the controlling time for the start of the limiting transient, 9 AM.

DMAr-_I kiC* R1 CALCULATION NO. L-002457 REVISION NO. 8 Fig. 7.8, Case 06e: UHS LOCA Temperature Transient Updated Worst 30-Day Evaporation Period (d =6 in, t 1200 hrs, T1 = 97.4F) 130 120

              *100AA KV s.o                                                                     A 8D                   *V                                                                  v 70 0    f   2   3   4    5    8 7      8   9 10     11 12 13 14 IS 16 17 18 19 20 21 22 23 24 25 25 27 25 29 30 Ds aMW SCRAM Note: The tables and figures here represent historical analysis results for the Rev. 3 calculation. Current design analysis is based on results reported in Attachment G for a 1020F plant intake temperature limit, and Attachment H for a 104.°F plant intake temperature limit These results do, however, provide the basis for the controlling time for the start of the limiting transient, 9 AM.

REVISION NO. 8 PAGE NO. 54 CALCULATION NO. L-002457 Fig. 7.9, Case 06e; UHS LOCA Drawdown Updated Worst 30-Day Evaporation Period (d - 6 In, t " 1200 hms, Ti = 97AF) 69025 660.00 688.75 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 2B 27 28 20 30 Days ael SCPAM Note: The tables and figures here represent historical analysis results for the Rev. 3 calculation. Current design analysis is based on results reported in Attachment G for a 102*F plant intake temperature limit, and Attachment H for a 104OF plant intake temperature limit. These results do, however, provide the basis for the controlling time for the start of the limiting transient, 9 AM.

CALCULATION NO. L-002457 REVISION NO. 8 PAGE NO. 55 Note: The tables and figures here represent historical analysis results for the Rev. 3 calculation. Current design analysis is based on results reported in Attachment G for a 102°F plant intake temperature limit, and Attachment H for a 104°F plant intake temperature limit. These results do, however, provide the basis for the controlling time for the start of the limiting transient, 9 AM.

REVISION NO. 8 PAGE NO. 56 CALCULATION NO. L-002457 Fig. 7.11, Case 18D9; UNS LOCA Drawdown First 30 Days of Updated Worst 36-Day Temperature Period (d a 18 in, t a 0900 hrs, TI = 96.5F) u002S I

    .3 01 2     3   4   5    0    7    8   9    10   1 12 13 14 t5 .6 17 18 19 2D 21 22 '23 24 25 28 27 2S 29 30 Days altr SCRAM Note: The tables and figures here represent historical analysis. results for the Rev. 3 calculation. Current design analysis is based on results reported in Attachment G for a 1027F plant intake temperature limit, and Attachment H for a 104*F plant intake temperature limit. These results do, however, provide the basis for the controlling time for the start of the limiting transient, 9 AM.

REVISION NO. 8 PAGE NO. 57 CALCULATION NO. L-002457 Fig. 7.t2, Case 1IB: UNS LOCA Temperature Transient Updated Worst 30-Day Evaporation Period (d a 18 In, t = 1200 hrs, Ti = 96.8F)

           .1 I

U

            .8 I

0 t 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 2D 21 22 23 24 25 25 27 28 29 30 Note: The tables and figures here represent historical analysis results for the Rev. 3 calculation. Current design analysis is based on results reported in Attachment G for a 102'F plant intake temperature limit, and Attachment H for a 104*F plant intake temperature limiL These results do. however, provide the basis for'the controlling time for the start of the limiting transient, 9 AM.

PAGE NO. 58 REVISION NO. 8 CALCULATION NO. L-002457 Fig. 7.13, Case 1IBe: UHS LOCA Drawdown Updated Worst 30-Day Evaporation Period (dm 18 in, ta1200 his, Ti = 96.8F) 69025 W Mpafsuter SCRAM Note: The tables and figures here represent historical analysis results for the Rev. 3 calculation. Current design analysis is based on results reported in Attachment G for a i 02'F plant intake temperature limit, and Attachment H for a 104*F plant intake temperature limit. These results do, however, provide the basis for the controlling time for the start of the limiting transient, 9 AM.

REVISION NO. 8 PAGE NO. 59 CALCULATION NO. L-002457 LAST PAGE OF MAIN BODY Figure 7.14 UHS Heat Load Following LOCA 900.0 800.0 700.0. VI 50. 300.0 200.0 100.0-on.~ 0 1 2 3 4 5 6 T 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 28 27 28 20 30 31 32 33 34 35 38 Ms alt SCRAM Note: The tables and figures here represent historical analysis results for the Rev. 3 calculation. Current design analysis is based on results reported in Attachment G for a 102IF plant intake temperature limit, and Attachment H for a 1047F plant intake temperature limit. These results do, however, provide the basis for the controlling time for the start of the limiting transient, 9 AM. FINAL PAGE

ATTACHMENT A PAGE Al OF A22 REVISION NO. 8 CALCULATION NO. L-002457 Attachment A UHSAV(; Files Program No. 03.7.642-1.0 1.0 - Sargent & Lundy 2000 Time: 15:05:48 UHSAVG10 Version Tuesday, March 7, User 0J2069 on PC5121 Controlled Files: SYS3: \ Drive V: = SNL1 V is SYS3 Volume in drive 08-11-1997 19:56 08-11-1997 19:55 [Base] \MAXDAT. EXE 08-20-1997 10:45 EXE [Base] \UHSAVG2. 10-06-1997 16:29 [Base] \WRITE.EXE BAT [Base] \UHSAVG$. 26,080,178 12-08-97 4:12p ps489661 bin 141 03-07-00 2 : 3 5p uhsavgO inp 142 03-07-00 2:35p uhsavgl8 inp 2:35p 141 03-07-00 uhsavg6 inp 4,553 03-07-00 3: 03p msgo sym 3: 08p sym 4,553 03-07-00 msgl8 3:06p

   .msg6       sym             4,553 03-07-00 w0000     inp                301 03-02-00      11:10a w0300     inp                301 03-02-00      11: 06a w0600     inp                301 03-02-00      11: 11a w0900      inp               301    03-02-00   11:05a w1200      inp               301    03-02-00   11:00a w1200e     inp               312    03-08-00   10:31a w1500      inp               301    03-02-00   11: 09a W1800      inp               301    03-02-00   11: 10a w2100      inp               301    03-02-00   11:10a PROJECT NO. 11333-297

ATTACHMENT A CALCULATION NO. L-002457 REVISION NO. 8 PAGE A2 OF A22 MSGO -SYM 0 1 3 1 19480705. 17526 184 .EO6 86.0 40 8 240 240 288 0 0 83.83 97. 464 .9 C: \COMED\LASALLE\WEATHER\PS489661.BIN PROJECT NO. 11333-297

ATTACHMENT A CALCULATION NO. L-002457 REVISION NO. 8 PAGE A3 OF A22 MSG6.SYM 0 1 3 1 19480705. 17526 184.E06 86.0 40 8 240 240 288 0 0 82.99 97. 423.5 C:\COMED\LASALLE\WEATHER\PS489661.BIN PROJECT NO. 11333-297

ATTACHMENT A CALCULATION NO. L-002457 REVISION NO. 8 PAGE A4 OF A22 MSG18. SYM 0 1 3 1 19480705. 17526 184.EO6 86.0 40 8 240 240 288 0 0 81.35 97. 341.4 C:\COMED\LASALLE\WEATHER\PS489661.BIN PROJECT NO. 11333-297

ATTACHMENT A CALCULATION NO. L-002457 REVISION NO. 8 PAGE A5 OF A22 SARGENT & LUNDY LLC UHSAVG PROGRAM ULTIMATE HEAT SINK ANALYSIS DETERMINATION OF DESIGN TEMPERATURE AND WATER LOSS PERIODS INPUT DATA COMMON TO BOTH TOWER AND POND: VALIDATION OPTION (CREATE AN OUTPUT FILE WITH TEMPERATURE (OF POND OR TOWER AIR), AND WATER LOSS VALUES, WRITTEN ONCE PER 3-HOUR PERIOD); NO=0, YES=1 = 0 IUHS (SELECTION OPTION; 1=POND, 2=TOWER) = I NUMPER (NUMBER OF SUB-PERIODS WITHIN THE 36-DAY COMBINED TEMPERATURE PERIOD - SHOULD ALWAYS BE=3) 3 4 LPLIM (NUMBER OF 3-HR PERIODS OVER WHICH DATA IS AVERAGED - SHOULD ALWAYS BE SET TO 1) 1 SDATE (STARTING DATE FOR THE UHSAVG PROCESSING - 6 DIGITS COMBINING YEAR, MONTH, AND DAY) = 19480705. IDYLIM (THE TOTAL NUMBER OF DAYS TO BE PROCESSED) = 17526 QLOAD (HEAT REJECTED BY THE POWER STATION - AVERAGE OVER THE PERIOD SPECIFIED IN REG. GUIDE 1.27 - BTU/HR) = 184000000.00 FLOW (POWER STATION ESSENTIAL SERVICE WATER FLOW, PLUS ANY ADDITIONAL FLOW - CFS) - 86.00 12LIM (THE NUMBER OF 3-HR INTERVALS IN EACH OF 5 DIFFERENT SUB-PERIODS THAT ARE IDENTIFIED - 40 8 240 240 288 INPUT DATA SPECIFIC TO PONDS ONLY: IPCP (OPTION FOR INCLUSION OF PRECIP IN WATER LOSS CALCULATIONS (0=NO, 1=YES)) = 0 EXTRA (EXTRA RUNOFF AREA FOR INCLUSION OF PRECIP IN WATER LOSS PROJECT NO. 11333-297

ATTACHMENT A CALCULATION NO. L-002457 REVISION NO. 8 PAGE A6 OF A22 A (AREA OY POND UHS - ACRhSJ = 1$ . J TI (INITIAL POND TEMPERATURE SET BY THE USER - DEG F) = 97.00 VI (INITIAL POND VOLUME SET BY THE USER - ACRE-FT) = 464.90 NAMES OF EXTERNAL FILES USED FOR THIS RUN OF UHSAVG: INPUT TEXT FILE WITH USER OPTION INPUT: INPUT BINARY FILE WITH WEATHER DATA: C:\COMED\LASALLE\WEATHER\PS489661.BIN OUTPUT TEXT FILE WITH RESULTS: MSGO.SYM OUTPUT TEXT FILE WITH VALIDATION DATA: OUnOOOwDOOOOOODOODDOOUDOUDDOOOODEDOnOOflr] STARTING DATE WAS FOUND AND PROCESSING WAS STARTED. PROCESSING WAS COMPLETED, AND DESIGN WEATHER PERIODS WERE SELECTED. THESE PERIODS ARE LISTED BELOW, AFTER THE DEFINITIONS. DEFINITION OF "AVERAGE TEMPERATURE": FOR A POND, THE "AVERAGE TEMPERATURE" FOR THE PERIOD REFERS TO THE AVERAGE BULK TEMP OF THE POND WATER, WHICH IS ASSUMED TO BE THOROUGHLY MIXED. FOR A TOWER, THE "AVERAGE TEMPERATURE" FOR THE PERIOD REFERS TO THE AVERAGE WET BULB TEMPERATURE. DEFINITION OF "AVERAGE EVAPORATION":

        "AVERAGE EVAPORATION" IN THE CASE OF EITHER A POND OR A TOWER REFERS TO THE AVERAGE EVAPORATIVE WATER LOSS FROM THE COOLING SYSTEM DURING THE PERIOD.

DEFINITION OF THE DECIMAL PORTION OF THE START AND END DATES FOR EACH SELECTED WORST-CASE PERIOD: THE DECIMAL PORTION IDENTIFIES ONE OF THE EIGHT 3-HOUR PERIODS OF THAT DAY. FOR EXAMPLE, "I" IS THE FIRST 3-HOUR PERIOD, AND "8" IS THE LAST 3-HR PERIOD PROJECT NO. 11333-297

ATTACHMENT A CALCULATION NO. L-002457 REVISION NO. 8 PAGE A7 OF A22 THE LENGTH OF THE FIRST COMPONENT OF THE COMBINED TEMPERATURE PERIOD WAS: 5.000 DAYS AVERAGE TEMPERATURE WAS: 93.413 DEG F PERIOD STARTS ON 19950712.4 PERIOD FINISHES ON 19950717.3 THE LENGTH OF THE SECOND COMPONENT OF THE COMBINED TEMPERATURE PERIOD WAS: 1.000 DAYS AVERAGE TEMPERATURE WAS: 94.699 DEG F PERIOD STARTS ON 19950715.5 PERIOD FINISHES ON 19950716.4 THE LENGTH OF THE THIRD COMPONENT OF THE COMBINED TEMPERATURE PERIOD WAS: 30.000 DAYS AVERAGE TEMPERATURE WAS: 89.138 DEG F PERIOD STARTS ON 19830710.6 PERIOD FINISHES ON 19830809.5 THE LENGTH OF THE EVAPORATION PERIOD WAS: 30.000 DAYS AVERAGE EVAPORATION WAS: 1.859 CFS PERIOD STARTS ON 19540618.5 PERIOD FINISHES ON 19540718.4 THE LENGTH OF THE WORST-CASE CONSECUTIVE TEMPERATURE PERIOD WAS: 36.000 DAYS AVERAGE TEMPERATURE WAS: 89.060 DEG F PERIOD STARTS ON 19950726.7 PERIOD FINISHES ON 19950831.6 PROJECT NO. 11333-297

ATTACHMENT A CALCULATION NO. L-002457 REVISION NO. 8 PAGE A8 OF A22 File: MSG6.SYM SARGENT & LUNDY LLC UHSAVG PROGRAM ULTIMATE HEAT SINK ANALYSIS DETERMINATION OF DESIGN TEMPERATURE AND WATER LOSS PERIODS INPUT DATA COMMON TO BOTH TOWER AND POND: VALIDATION OPTION (CREATE AN OUTPUT FILE WITH TEMPERATURE (OF POND OR TOWER AIR), AND WATER LOSS VALUES, WRITTEN ONCE PER 3-HOUR PERIOD); NO=0, YES=1 = 0 IURS (SELECTION OPTION; 1=POND, 2=TOWER) = 1 NUMPER (NUMBER OF SUB-PERIODS WITHIN THE 36-DAY COMBINED TEMPERATURE PERIOD - SHOULD ALWAYS BE=3) 3 LPLIM (NUMBER OF 3-HR PERIODS OVER WHICH DATA IS AVERAGED - SHOULD ALWAYS BE SET TO 1) 1 SDATE (STARTING DATE FOR THE UHSAVG PROCESSING - 6 DIGITS COMBINING YEAR, MONTH, AND DAY) = 19480705. IDYLIM (THE TOTAL NUMBER OF DAYS TO BE PROCESSED) = 17526 QLOAD (HEAT REJECTED BY THE POWER STATION - AVERAGE OVER THE PERIOD SPECIFIED IN REG. GUIDE 1.27 - BTU/HR) = 184000000.00 FLOW (POWER STATION ESSENTIAL SERVICE WATER FLOW, PLUS ANY ADDITIONAL FLOW - CFS) = 86.00 I2LIM (THE NUMBER OF 3-HR INTERVALS IN EACH OF 5 DIFFERENT SUB-PERIODS THAT ARE IDENTIFIED - 40 8 240 240 288 INPUT DATA SPECIFIC TO PONDS ONLY: IPCP (OPTION FOR INCLUSION OF PRECIP IN WATER LOSS CALCULATIONS (0=NO, 1=YES)) = 0 EXTRA (EXTRA RUNOFF AREA FOR INCLUSION PROJECT NO. 11333-297

ATTACHMENT A CALCULATION NO. L-002457 REVISION NO. 8 PAGE A9 OF A22 OF PRECIP IN WATER LOSS CALCULATIONS - (ACRES)) = .00 A (AREA OF POND UHS - ACRES) = 82.99 TI (INITIAL POND TEMPERATURE SET BY THE USER - DEG F) = 97.00 VI (INITIAL POND VOLUME SET BY THE USER - ACRE-FT) = 423.50 NAMES OF EXTERNAL FILES USED FOR THIS RUN OF UHSAVG: INPUT TEXT FILE WITH USER OPTION INPUT: INPUT BINARY FILE WITH WEATHER DATA: C: \COMED\LASALLE\WEATHER\PS489661 .BIN OUTPUT TEXT FILE WITH RESULTS: MSG6.SYM OUTPUT TEXT FILE WITH VALIDATION DATA: STARTING DATE WAS FOUND AND PROCESSING WAS STARTED. PROCESSING WAS COMPLETED, AND DESIGN WEATHER PERIODS WERE SELECTED. THESE PERIODS ARE LISTED BELOW, AFTER THE DEFINITIONS. DEFINITION OF "AVERAGE TEMPERATURE": FOR A POND, THE "AVERAGE TEMPERATURE" FOR THE PERIOD REFERS TO THE AVERAGE BULK TEMP OF THE POND WATER, WHICH IS ASSUMED TO BE THOROUGHLY MIXED. FOR A TOWER, THE "AVERAGE TEMPERATURE" FOR THE PERIOD REFERS TO THE AVERAGE WET BULB TEMPERATURE. DEFINITION OF "AVERAGE EVAPORATION":

        "AVERAGE EVAPORATION" IN THE CASE OF EITHER A POND OR A TOWER REFERS TO THE AVERAGE EVAPORATIVE WATER LOSS FROM THE COOLING SYSTEM DURING THE PERIOD.

DEFINITION OF THE DECIMAL PORTION OF THE START AND END DATES FOR EACH SELECTED WORST-CASE PERIOD: THE DECIMAL PORTION IDENTIFIES ONE OF THE EIGHT 3-HOUR PERIODS OF THAT DAY. FOR EXAMPLE, "1" IS THE FIRST 3-HOUR PROJECT NO. 11333-297

ATTACHMENT A CALCULATION NO. L-002457 REVISION NO. 8 PAGE Al0 OF A22 OF THE DAY. THE LENGTH OF THE FIRST COMPONENT OF THE COMBINED TEMPERATURE PERIOD WAS: 5.000 DAYS AVERAGE TEMPERATURE WAS: 93.565 DEG F PERIOD STARTS ON 19950712.2 PERIOD FINISHES ON 19950717.1 THE LENGTH OF THE SECOND COMPONENT OF THE COMBINED TEMPERATURE PERIOD WAS: 1.000 DAYS AVERAGE TEMPERATURE WAS: 94.791 DEG F PERIOD STARTS ON 19950715.5 PERIOD FINISHES ON 19950716.4 THE LENGTH OF THE THIRD COMPONENT OF THE COMBINED TEMPERATURE PERIOD WAS: 30.000 DAYS AVERAGE TEMPERATURE WAS: 89.208 DEG F PERIOD STARTS ON 19830710.5 PERIOD FINISHES ON 19830809.4 THE LENGTH OF THE EVAPORATION PERIOD WAS: 30.000 DAYS AVERAGE EVAPORATION WAS: 1.845 CFS PERIOD STARTS ON 19540618.5 PERIOD FINISHES ON 19540718.4 THE LENGTH OF THE WORST-CASE CONSECUTIVE TEMPERATURE PERIOD WAS: 36.000 DAYS AVERAGE TEMPERATURE WAS: 89.104 DEG F PERIOD STARTS ON 19950726.7 PERIOD FINISHES ON 19950831.6 PROJECT NO. 11333-297

ATTACHMENT A CALCULATION NO. L-002457 REVISION NO. 8 PAGE All OF A22 File: MSGIS.SYm SARGENT & LUNDY LLC UHSAVG PROGRAM ULTIMATE HEAT SINK ANALYSIS DETERMINATION OF DESIGN TEMPERATURE AND WATER LOSS PERIODS INPUT DATA COMMON TO BOTH TOWER AND POND: VALIDATION OPTION (CREATE AN OUTPUT FILE WITH TEMPERATURE (OF POND OR TOWER AIR), AND WATER LOSS VALUES, WRITTEN ONCE PER 3-HOUR PERIOD); NO=0, YES=1 0 IUHS (SELECTION OPTION; 1=POND, 2=TOWER) = 1 NUMPER (NUMBER OF SUB-PERIODS WITHIN THE 36-DAY COMBINED TEMPERATURE PERIOD - SHOULD ALWAYS BE=3) LPLIM (NUMBER OF 3-HR PERIODS OVER WHICH DATA IS AVERAGED - SHOULD ALWAYS BE SET TO 1) SDATE (STARTING DATE FOR THE UHSAVG PROCESSING - 6 DIGITS COMBINING YEAR, MONTH, AND DAY) 19480705. IDYLIM (THE TOTAL NUMBER OF DAYS TO BE PROCESSED) 17526 QLOAD (HEAT REJECTED BY THE POWER STATION - AVERAGE OVER THE PERIOD SPECIFIED IN REG. GUIDE 1.27 - BTU/HR) 184000000.00 FLOW (POWER STATION ESSENTIAL SERVICE WATER FLOW, PLUS ANY ADDITIONAL FLOW - CFS) 86.00 I2LIM (THE NUMBER OF 3-HR INTERVALS IN EACH OF 5 DIFFERENT SUB-PERIODS THAT ARE IDENTIFIED 40 8 240 240 288 INPUT DATA SPECIFIC TO PONDS ONLY: IPCP (OPTION FOR INCLUSION OF PRECIP IN WATER LOSS CALCULATIONS (0=NO, I=YES)) = 0 EXTRA (EXTRA RUNOFF AREA FOR INCLUSION OF PRECIP IN WATER LOSS PROJECT NO. 11333-297

ATTACHMENT A CALCULATION NO. L-002457 REVISION NO. 8 PAGE A12 OF A22 A (AREA OF POND UHS - ACRES) = 81.35 TI (INITIAL POND TEMPERATURE SET BY THE USER - DEG F) = 97.00 VI (INITIAL POND VOLUME SET BY THE USER - ACRE-FT) = 341.40 NAMES OF EXTERNAL FILES USED FOR THIS RUN OF UHSAVG: INPUT TEXT FILE WITH USER OPTION INPUT: INPUT BINARY FILE WITH WEATHER DATA: C:\COMED\LASALLE\WEATHER\PS489661.BIN OUTPUT TEXT FILE WITH RESULTS: MSG18.SYM OUTPUT TEXT FILE WITH VALIDATION DATA: STARTING DATE WAS FOUND AND PROCESSING WAS STARTED. PROCESSING WAS COMPLETED, AND DESIGN WEATHER PERIODS WERE SELECTED. THESE PERIODS ARE LISTED BELOW, AFTER THE DEFINITIONS. DEFINITION OF "AVERAGE TEMPERATURE": FOR A POND, THE "AVERAGE TEMPERATURE" FOR THE PERIOD REFERS TO THE AVERAGE BULK TEMP OF THE POND WATER, WHICH IS ASSUMED TO BE THOROUGHLY MIXED. FOR A TOWER, THE "AVERAGE TEMPERATURE" FOR THE PERIOD REFERS TO THE AVERAGE WET BULB TEMPERATURE. DEFINITION OF "AVERAGE EVAPORATION":

        "AVERAGE EVAPORATION" IN THE CASE OF EITHER A POND OR A TOWER REFERS TO THE AVERAGE EVAPORATIVE WATER LOSS FROM THE COOLING SYSTEM DURING THE PERIOD.

DEFINITION OF THE DECIMAL PORTION OF THE START AND END DATES FOR EACH SELECTED WORST-CASE PERIOD: THE DECIMAL PORTION IDENTIFIES ONE OF THE EIGHT 3-HOUR PERIODS OF THAT DAY. FOR EXAMPLE, "1" IS THE FIRST 3-HOUR PERIOD, AND "8" IS THE LAST 3-HR PERIOD PROJECT NO. 11333-297

ATTACHMENT A CALCULATION NO. L-002457 REVISION NO. 8 PAGE A13 OF A22 THE LENGTH OF THE FIRST COMPONENT OF THE COMBINED TEMPERATURE PERIOD WAS: 5.000 DAYS AVERAGE TEMPERATURE WAS: 93.865 DEG F PERIOD STARTS ON. 19950712.1 PERIOD FINISHES ON 19950716.8 THE LENGTH OF THE SECOND COMPONENT OF THE COMBINED TEMPERATURE PERIOD WAS: 1.000 DAYS AVERAGE TEMPERATURE WAS: 94.935 DEG F PERIOD STARTS ON 19950715.5 PERIOD FINISHES ON 19950716.4 THE LENGTH OF THE THIRD COMPONENT OF THE COMBINED TEMPERATURE PERIOD WAS: 30.000 DAYS AVERAGE TEMPERATURE WAS: 89.334 DEG F PERIOD STARTS ON 19830710.5 PERIOD FINISHES ON 19830809.4 THE LENGTH OF THE EVAPORATION PERIOD WAS: 30.000 DAYS AVERAGE EVAPORATION WAS: 1.820 CFS PERIOD STARTS ON 19540618.5 PERIOD FINISHES ON 19540718.4 THE LENGTH OF THE WORST-CASE CONSECUTIVE TEMPERATURE PERIOD WAS: 36.000 DAYS AVERAGE TEMPERATURE WAS: 89.191 DEG F PERIOD STARTS ON 19950726.5 PERIOD FINISHES ON 19950831.4 PROJECT NO. 11333-297

ATTACHMENT A CALCULATION NO. L-002457 REVISION NO. 8 PAGE A14 OF A22 0 MSG-WRIT. SYM C:\WAKELAND\LASALLE\PS489661.BIN TCOMOO.BIN TOO.BIN E30.BIN TEXT.TXT 1995 7 12 1 1995 7 16 8 1995 7 15 5 1995 7 16 4 1983 7 10 6 1983 8 9 5 1995 7 15 1 1995 8 19 8 1954 6 18 4 1954 7 18 3 0 PROJECT NO. 11333-297

ATTACHMENT A CALCULATION NO. L-002457 REVISION NO. 8 PAGE A15 OF A22 MSG-WRIT.SYM C:\WAKELAND\LASALLE\PS489661.BIN TCOM03.BIN T03.BIN E30.BIN TEXT.TXT 1995 7 12 2 1995 7 17 1 1995 7 15 5 1995 7 16 4 1983 7 10 6 1983 8 9 5 1995 7 15 2 1995 8 20 1 1954 6 18 4 1954 7 18 3 PROJECT NO. 11333-297

ATTACHMENT A CALCULATION NO. L-002457 REVISION NO. 8 PAGE A16 OF A22 0 MSG-WRIT.SYM C:\WAKELAND\LASALLE\PS489661.BIN TCOM06.BIN T06.BIN E30.BIN TEXT.TXT 1995 7 12 3 1995 7 17 2 1995 7 15 5 1995 7 16 4 1983 7 10 6 1983 8 9 5 1995 7 15 3 1995 8 20 2 1954 6 18 4 1954 7 18 3 PROJECT NO. 11333-297

ATTACHMENT A CALCULATION NO. L-002457 REVISION NO. 8 PAGE A17 OF A22 0 MSG-WRIT.SYM C:\WAKELAND\LASALLE\PS489661.BIN TCOM09.BIN T09.BIN 830.BIN TEXT.TXT 1995 7 12 4 1995 7 17 3 1995 7 15 5 1995 7 16 4 1983 7 10 6 1983 8 9 5 1995 7 15 4 1995 8 20 3 1954 6 18 4 1954 7 18 3 PROJECT NO. 11333-297

ATTACHMENT A CALCULATION NO. L-002457 REVISION NO. 8 PAGE A18 OF A22 0 MSG-WRIT.SYM C: \WAICEL A ND\LASALLE\PS489661.BIN TCOM12.BIN T12.BIN E30 .BIN TEXT.TXT 1995 7 12 5 1995 7 17 4 1995 7 15 5 1995 7 16 4 1983 7 10 6 1983 8 9 5 1995 7 15 5 1995 8 20 4 1954 6 18 4 1954 7 18 3 PROJECT NO. 11333-297

ATTACHMENT A CALCULATION NO. L-002457 REVISION NO. 8 PAGE A19 OF A22 0 MSG-WRIT.SYM C:\WAKELAND\LASALLE\PS489661.BIN TCOM15.BIN T15.BIN E30.BIN TEXT.TXT 1995 7 12 6 1995 7 17 5 1995 7 15 5 1995 7 16 4 1983 7 10 6 1983 8 9 5 1995 7 15 6 1995 8 20 5 1954 6 18 4 1954 7 18 3 PROJECT NO. 11333-297

ATTACHMENT A CALCULATION NO. L-002457 REVISION NO. 8 PAGE A20 OF A22 0 MSG-WRIT. SYM C:\WAKELAND\LASALLE\PS489661.BIN TCOM18.BIN T18.BIN E30.BIN TEXT.TXT 1995 7 12 7 1995 7 17 6 1995 7 15 5 1995 7 16 4 1983 7 10 6 1983 8 9 5 1995 7 15 7 1995 8 20 6 1954 6 18 4 1954 7 18 3 PROJECT NO. 11333-297

ATTACHMENT A CALCULATION NO. L-002457 REVISION NO. 8 PAGE A21 OF A22 0 MSG-WRIT.SYM C:\WAKELAND\LASALLE\PS48 9661.BIN TCOM21.BIN T21.BIN E30.BIN TEXT.TXT 1995 7 12 8 1995 7 17 7 1995 7 15 5 1995 7 16 4 1983 7 10 6 1983 8 9 5 1995 7 15 8 1995 8 20 7 1954 6 18 4 1954 7 18 3 PROJECT NO. 11333-297

ATTACHMENT A CALCULATION NO. L-002457 REVISION NO. 8 PAGE A22 OF A22 MSGWRT.SYM C:\COMED\LASALLE\WEATHER\PS489661.BIN TCOMUAVG.BIN T36UAVG.BIN E3012.BIN TEXT.TXT 1995 7 12 2 1995 7 17 1 1995 7 15 5 1995 7 16 4 1983 7 10 6 1983 8 9 5 1995 7 26 7 1995 8 31 6 1954 6 18 5 1954 7 18 4 PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE B1 OF B358 Attachment B LAXRT-PC Output LAKETl0 Version 1.0 - Sargent & Lundy Program No. 03.7.292-1.0 User 0H9449 on PC5407 Wednesday, February 23, 2000 Time: 14:12:20 User 0J2069 on PC5121 Controlled Files: Drive V: = SNLISYS3: \ Volume in drive V is SYS3 [Base]\PIA8586.BIN 03-31-1992 16:04 (Base]\LPRINT.EXE 08-03-1995 11:42 [Base]\BRAUHS3A.BIN 08-01-1995 21:06 [Base]\LAKET$.BAT 07-02-1996 11:49 [Base]\BRAUHS3A.DAT 08-02-1995 16:57 [Base]\LAKET.EXE 10-27-1997 08:45 [Base]\TEST.DAT 11-23-1992 14:00 [Base]\LAKETRUN.BAT 10-24-1997 13 :27 LAKET Plot Program - Sargent & Lundy Program No. 03.7.292-1.2 User 0H9449 on PC5407 Wednesday, February 23, 2000 User 0J2069 on PC5121 Directory of C:\WAKELAND\UASALLE c0000 dat 2,323 03-03-00 2 :08p 3 C0003 dat 2,321 03-03-00 2: 1p c0006 dat 2,322 03-03-00 2:54p c0009 dat 2,322 03-03-00 2:09p comO009 dat 2,326 03-07-00 5:29p "comO012 dat 2,326 03-06-00 11: 19a comOO15 dat 2,326 03-06-00 1: alp c0018 dat 2,323 03-03-00 2: 10p c0021 dat 2,323 03-03-00 2: lip c0600 dat 2,887 03-03-00 2: 14p c0603 dat 2,885 03-03-00 2:35p c06O6 dat 2,886 03-03-00 2:59p com0609 dat 2,889 03-06-00 10: 24a com0612 dat 2,890 03-06-00 11:21a com0615 dat 2,890 03-06-00 11:23a c0618 dat 2,887 03-03-00 2: lip c0621 dat 2,887 03-03-00 2: lip c1800 dat 2,929 03-03-00 2: iSp 4 c1803 dat 2,927 03-03-00 2 : 6p c1806 dat 2,928 03-03-00 3 :0Op c1809 dat 2,928 03-03-00 3: 13p 3 com1809 dat 2,932 03-07-00 5: 4p com1812 dat 2,931 03-06-00 l1:21a com1815 dat 2,932 03-06-00 1:09p C1818 dat 2,929 03-03-00 2: 17p c1821 dat 2,929 03-03-00 2: l7p cOOe dat 2,595 03-08-00 10:45a c06e dat 2,597 03-08-00 10:53a cl8e dat 2,640 03-08-00 11: 15a PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE B2 OF B358 Directory of C:\WAKELAND\LASALLE e3012 bin 44,642 03-08-00 10: 38a too bin 53,570 03-02-00 1:44p t03 bin 53,570 03-02-00 1:45p t06 bin 53,570 03-02-00 1:46p t09 bin 53,570 03-02-00 l:47p t12 bin 53,570 03-02-00 1:49p t15 bin 53,570 03-02-00 1: 5Op tU8 bin 53,570 03-02-00 1: 52p 3 t21 bin 53,570 03-02-00 1: 5 p tcom0o bin 53,570 03-02-00 1:44p tcom03 bin 53,570 03-02-00 1:45p tcom06 bin 53,570 03-02-00 1:46p tcom09 bin 53,570 03-02-00 1:47p tcoml2 bin 53,570 03-02-00 1:49p tcoml5 bin 53,570 03-02-00 1: SOp tcoml8 bin 53,570 03-02-00 1: 52p tcom2l bin 53,570 03-02-00 1: 5 3 p PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE B3 OF B358 Program  : LAKET-PC Page : 1 Number 03.7.292-1.0 0 Date : 03/03/2000 Created :Mon Oct 27 08:45:58 1997 Time : 14:18:14.18 Case 0000: LaSalle UHS (Updated Worst 36-Day Temp.; Ti=100.0F @ 0000; power upra 1 2 070100 080500 1 1 3 1 20 4 1 0.2 5500. 0 5 690. 690. 1. 6 83.83 464.9 75.45 418.4 82.15 381.9 73.94 343.7 80.55 300.5 72.50 270.S 78.96 220.8 71.06 198.7 77.33 142.6 69.60 128.4 29.70 71.7 26.73 65.6 7 1 0 8 100.0 95.5 999 FPLANT R/I 86.0 TPRISE S/I 35.26 28.79 16.68 16.28 15.32 14 .97 14.53 14.29 13.88 13.45 13.30 13.30 13.30 13.24 12.73 12.73 12.57 12.43 12.24 12.02 12.02 12.02 12.02 12.01 11.49 11.49 11.49 11.49 11.49 11.49 11.49 11.49 11.09 11.07 PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE B4 OF B358 Number  : 03.7.292-1.0 0 Date : 03/03/2000 Created :Mon Oct 27 08:45:58 1997 Time 14:18:14.18 11.07 11.07 11.07 10.87 10.86 10.86 10.50 10.50 10.50 10.50 10.50 10.50 10.50 10.50 10.50 10.50 10.50 10.50 10.50 10.50 10.50 10.27 9.99 9.99 9.99 9.99 9.99 9.99 9.99 9.99 9.99 9.99 9.99 9.99 9.99 9.99 9.99 9.99 9.99 9.99 9.72 9.70 9.70 9.70 9.70 9.70 9.54 9.54 9,54 9.54 9.54 PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE B5 OF B358 Number  : 03.7.292-1.0 0 Date : 03/03/2000 Created :Mon Oct 27 08:45:58 1997 Time : 14:18:14.18 9.54 9.54 9.54 9.54 9.54 9.54 9.54 9.40 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19

9. 19 9.19 PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE B6 OF B358 Number 03.7.292-1.0 0 Date : 03/03/2000 Created :Mon Oct 27 08:45:58 1997 Time 14:18:14.24 9.19 9.19 9.15 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.72 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.52 8.49 PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE B7 OF B358 Number 03.7.292-1.0 0 Date 03/03/2000 Created Mon Oct 27 08:45:58 1997 Time 14:18:14.24 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE B8 OF B358 Number 03.7.292-1.0 0 Date : 03/03/2000 Created :Mon Oct 27 08:45:58 1997 Time : 14:18:14.29 8.49 8.44 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 END PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE B9 OF B358 Number 03.7.292-1.0 0 Date : 03/03/2000 Created Mon Oct 27 08:45:58 1997 Time : 14:18:14.79 Case 0000: LaSalle UHS (Updated Worst 36-Day Temp.; Ti=100.OF @ 000o; power upra RUN 36 DAYS FROM 70100 TO 80500 PLOT FILE OPTION : 1 CYCLE FLAG: 1 WEATHER FILE OPTION: 1 ANEMOMETER HEIGHT 20 .00 DENSITY: 62.40 SEEPAGE: .20 LAKE LENG' TH: 5500.00 INITIAL LAKE ELEVATION = 690.00 DRAWDOWN CURVE ELEVATION TOTAL AREA TOTAL VOLUME EPP AREA EPP VOLUME 690.000 83.830 464.900 75.450 418.400 689.000 82.150 381.900 73.940 343.700 688.000 80.550 300.500 72.500 270.500 687.000 78.960 220.800 71.060 198.700 686.000 77.330 142.600 69.600 128.400 685.000 29.700 71.700 26.730 65.600 PLOT FILE FREQ 1 INCREMENTS AT 0 HOURS INITIAL FORCED/NATURAL LAKE TEMPS. = 100.00 95.50 WEATHER STATION ID 0. PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE B10 OF B358 Number 03.7.292-1.0 0 Date : 03/03/2000 Created Mon Oct 27 08:45:58 1997 Time : 14:18:14.79 Case 0000: LaSalle UHS (Updated Worst 36-Day Temp.; Ti=100.OF @ 0000; power upra FPLANT 70100 - 80500 R/I 86.000 TPRISE 70100 - 80500 s/I 35.260 28.790 16.680 16.280 15.320 14.970 14.530 14.290 13.880 13.450 13.300 13.300 13.300 13.240 12.730 12.730 12.570 12.430 12.240 12.020 12.020 12.020 12.020 12.010 11.490 11.490 11.490 11.490 11.490 11.490 11.490 11.490 11.090 11.070 11.070 11.070 11.070 10.870 10.860 10.860 10.500 10.500 10.500 10.500 10.500 10.500 10.500 10.500 10.500 10.S00 10.500 10.500 10.500 10.500 10.500 10.270 9.990 9.990 9.990 9.990 9.990 9.990 9.990 9.990

9. 990 9.990 9.990 9.990

9. 990 9.990 9.990 9.990 9.990 9.990 9.720 9.700 9.700 9.700 9.700 9.700 9.540 9.540 9.540 9.540 9.540 9.540 9.540 9.540 9.540 9.540 9.540 9.540 9.400 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.150 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8.720 8.700 8.700 8.700 8.700 8.700 8.700 8.700 8.700 8.700 8.700 8.700 8.700 8.700 8.700 8.700 8.700 8.700 8.700 8.700 PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE Bll OF B358 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8,490 8.490 8.490 8.490 8.490 8.490 8.490 8 .490 8.490 8.490 8.490 8.440 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8 .220 8.220 PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE B12 OF B358 Number  : 03.7.292-1.0 0 Date : 03/03/2000 Created Mon Oct 27 08:45:58 1997 Time : 14:18:15.12 Case 0000: LaSalle UHS (Updated Worst 36-Day Temp.; Ti=100.OF @ 0000; power upra SEASONAL

SUMMARY

FOR SUMMER ( 6/1900 - 8/1900 ) QUANTITY MONTHLY AVERAGES AVERAGE JUN JUL AUG VALUE LAKE SEEPAGE (CFS) .00 -. 18 -. 16 -. 18 TOTAL EVAP (CFS) .00 -1.39 -1.24 -1.37 NATURAL EVAP (CFS) .00 -. 76 -. 69 -. 75 FORCED EVAP (CFS) .00 -. 63 -. 55 -. 62 PRECIPITATION (CFS) .00 .00 .00 .00 MAKEUP (CFS) .00 .00 .00 .00 ELOWDOWN (CFS) .00 .00 .00 .00 RUNOFF (CFS) .00 .00 .00 .00 DAM SPILL (CFS) .00 .00 .00 .00 LAKE ELEVATION (FEET) .00 689.36 688.75 689.28 DISSOLVED SOLIDS (PPM) .00 .00 .00 .00 NATURAL LAKE TEMP (F) .00 88.82 92.57 89.34 LAKE INLET TEMP (F) .00 99.72 101.75 100.01 LAKE OUTLET TEMP (F) .00 89.96 93.55 90.46 TEMPERATURE FREQUENCY OF OCCURENCES 1% 5% 50% NATURAL LAKE TEMP (F) 97.0 95.3 89.1 LAKE INLET TEMP (F) 126.0 109.0 99.3 LAKE OUTLET TEMP (F) 98.8 96.8 90.2 PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE B13 OF B358 Number 03.7.292-1.0 0 Date  : 03/03/2000 Created :Mon Oct 27 08:45:58 1997 Time  : 14:18:15.12 Case 0000: LaSalle UHS (Updated Worst 36-Day Temp.; Ti=100.0F @ 0000; power upra CUMULATIVE SEASONAL

SUMMARY

SUMMER QUANTITY MONTHLY AVERAGES AVERAGE JUN JUL AUG VALUE LAKE SEEPAGE (CFS) .00 -. 18 -. 16 -. 18 TOTAL EVAP (CFS) .00 -1.39 -1.24 -1.37 NATURAL EVAP (CFS) .00 -. 76 -. 69 -.75 FORCED EVAP (CFS) .00 -. 63 -. 55 -. 62 PRECIPITATION (CFS) .00 .00 .00 .00 MAKEUP (CFS) .00 .00 .00 .00 BLOWDOWN (CFS) .00 .00 .00 .00 RUNOFF (CFS) .00 .00 .00 .00 DAM SPILL (CFS) .00 .00 .00 .00 LAKE ELEVATION (FEET) .00 689.36 688.75 689.28 DISSOLVED SOLIDS (PPM) .00 .00 .00 .00 NATURAL LAKE TEMP (F) .00 88.82 92.57 89.34 LAKE INLET TEMP (F) .00 99.72 101.75 100.01 LAKE OUTLET TEMP (F) .00 89.96 93.55 90.46 TEMPERATURE FREQUENCY OF OCCURENCES 1% 5% 50%

NATURAL LAKE TEMP (F) 97.0 95.3 89.1 LAKE INLET TEMP (F) 126.0 109.0 99.3 LAKE OUTLET TEMP (F) 98.8 96.8 90.2 PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE B14 OF B358 Number  : 03.7.292-1.0 0 Date  : 03/03/2000 CreatedC Mon Oct 27 08:45:58 1997 Time 14:18:15.12 Case 0000: LaSalle UHS (Updated Worst 36-Day Temp.; Ti=100.OF @ 0000; power upra TOTAL CUMULATIVE

SUMMARY

QUANTITY MAXIMUM MINIMUM AVERAGE TOTAL FLOW VALUE ( DATE ) VALUE ( DATE ) VALUE (ACRE-FEET) LAKE SEEPAGE (CFS) -. 16 8051900) -. 20 7011900) -. 18 -1.26223E+01 TOTAL EVAP (CFS) -. 25 8041900) -4.54 7031900) -1.37 -9.78239E+01 NATURAL EVAP (CFS) .00 7011900) -3.55 7031900) -. 75 -5.38859E+01 FORCED EVAP (CFS) -. 25 8041900) -1.67 7021900) -. 62 -4.39380E+01 PRECIPITATION (CFS) .00 7011900) .00 7011900) .00 O.OOOOOE+00 MAKEUP (CFS) .00 7011900) .00 7011900) .00 0.00000E+00 ELOWDOWN (CFS) .00 7011900) .00 7011900) .00 0.OOOOOE+00 RUNOFF (CFS) .00 7011900) .00 7011900) .00 0.00000E+00 DAM SPILL (CFS) .00 7011900) .00 7011900) .00 0.00000E+00 LAKE ELEVATION (FEET) 689.99 7011900) 688.66 8051900) 689.28 4.92180E+04 DISSOLVED SOLIDS (PPM) .00 7011900) .00 7011900) .00 0.OOOOOE+00 NATURAL LAKE TEMP (F) 97.62 7011900) 82.69 7071900) 89.34 6.37916E+03 LAKE INLET TEMP (F) 133.76 7011900) 93.35 7261900) 100.01 7.14096E+03 LAKE OUTLET TEMP (F) 99.39 7011900) 84.26 7071900) 90.46 6.45926E+03 TEMPERATURE FREQUENCY OF OCCURENCES 1% 5% 50% NATURAL LAKE TEMP (F) 97.0 95.3 89.1 LAKE INLET TEMP (F) 126.0 109.0 99.3 LAKE OUTLET TEMP (F) 98.8 96.8 90.2 PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE B15 OF B358 Number 03.7.292-1.0 0 Date  : 03/03/2000 Created :Mon Oct 27 08:45:58 1997 Time  : 14:31:48.34 Case 0003: LaSalle UHS (Updated Worst 36-Day Temp.; Ti=99.3F @ 0300; power uprat 1 2 070100 080500 1 1 3 1 20 4 1 0.2 5500. 0 S 690 90 1.. 83.83 464.9 75.45 418.4 82.15 381.9 73.94 343.7 80.55 300.5 72.50 270.5 78.96 220.8 71.06 198.7 77.33 142.6 69.60 128.4 29.70 71.7 26.73 65.6 7 1 0 8 99.3 94.8 999 FPLANT R/h 86.0 TPRISE S/I 35.26 28.79 16.68 16.28 15.32 14.97 14.53 14.29 13.88 13.45 13.30 13.30 13.30 13.24 12.73 12.73 12.57 12.43 12.24 12.02 12.02 12.02 12.02 12.01 11.49 11.49 11.49 11.49 11.49 11.49 11.49 11.49 11.09 11.07 PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE B16 OF B358 Date 03/03/2000 Number 03.7.292-1.0 0 Time 14:31:48.40 Created Mon Oct 27 08:45:58 1997 11.07 11.07 11.07 10.87 10.86 10.86 10.50 10.50 10.50 10.50 10.50 10.50 10.50 10.50 10.50 10.50 10.50 10.50 10.50 10.50 10.50 10.27 9.99 9.99 9.99 9.99 9.99 9.99 9.99 9.99 9.99 9.99 9.99 9.99 9.99 9.99 9.99 9.99 9.99 9.99 9.72 9.70 9.70 9.70 9.70 9.70 9.54 9.54 9.54 9.54 9.54 PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE B17 OF B358 Date 03/03/2000 Number  : 03.7.292-1.0 0 Time 14:31:48.40 Created Mon Oct 27 08:45:58 1997 9.54 9.54 9.54 9.54 9.54 9.54 9.54 9.40 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE B18 OF B358 Number  : 03.7.292-1.0 0 Date 03/03/2000 Created :Mon Oct 27 08:45:58 1997 Time 14:31:48.40 9.19 9.19 9.15 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.72 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.52 8.49 PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE B19 OF B358 Number 03.7.292-1.0 0 Date 03/03/2000 Created :Mon Oct 27 08:45:58 1997 Time : 14:31:48.40 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE B20 OF B358 Number  : 03.7.292-1.0 0 Date : 03/03/2000 Created Mon Oct 27 08:45:58 1997 Time : 14:31:48.45 8.49 8.44 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 END PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE B21 OF B358 Number  : 03.7.292-1.0 0 Date : 03/03/2000 Created Mon Oct 27 08:45:58 1997 Time 14:31:48.73 Case 0003: LaSalle UHS (Updated Worst 36-Day Temp.; Ti=99.3F 0 0300; power uprat RUN 36 DAYS FROM 70100 TO 80500 PLOT FILE OPTION : 1 CYCLE FLAG: 1 WEATHER FILE OPTION: 1 ANEMOMETER HEIGHT 20.00 DENSITY: 62.40 SEEPAGE: .20 LAKE LENGTH: 5500.00 INITIAL LAKE ELEVATION 690.00 DRAWDOWN CURVE ELEVATION TOTAL AREA TOTAL VOLUME EFF AREA EFF VOLUME 690.000 83.830 464.900 75.450 418.400 689.000 82.150 381.900 73.940 343.700 688.000 80.550 300.500 72.500 270.500 687.000 78.960 220.800 71.060 198.700 686.000 77.330 142.600 69.600 128.400 685.000 29.700 71.700 26.730 65.600 PLOT FILE FREQ 1 INCREMENTS AT 0 HOURS INITIAL FORCED/NATURAL LAKE TEMPS. = 99.30 94.80 WEATHER STATION ID 0. PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE B22 OF B358 Number 03.7.292-1.0 0 Date : 03/03/2000 Created Mon Oct 27 08:45:58 1997 Time 14:31:48.73 Case 0003: LaSalle UHS (Updated Worst 36-Day Temp.; Ti=99.3F @ 0300; power uprat FPLAANT 70100 - 80500 R/I 86.000 TPRISE 70100 - 80500 S/I 35.260 28.790 16.680 16.280 15.320 14.970 14.530 14.290 13.880 13.450 13.300 13.300 13.300 13.240 12.730 12.730 12.570 12.430 12.240 12.020 12.020 12.020 12.020 12.010 11.490 11.490 11.490 11.490 11.490 11.490 11.490 11.490 11.090 11.070 11.070 11.070 11.070 10.870 10.860 10.860 10.500 10.500 10.500 10.500 10.500 10.500 10.500 10.500 10.500 10.500 10.500 10.500 10.500 10.500 10.500 10.270 9.990 9.990 9.990 9.990 9.990 9.990 9.990 9.990 9.990 9.990 9.990 9.990 9.990 9.990 9.990 9.990 9.990 9.990 9.720 9.700 9.700 9.700 9.700 9.700 9.540 9.540 9.540 9.540 9.540 9.540 9.540 9.540 9.540 9.540 9.540 9.540 9.400 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.150 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8.720 8.700 8.700 8.700 8.700 8.700 8.700 8.700 8.700 8.700 8.700 8.700 8.700 8.700 8.700 8.700 8.700 8.700 8.700 8.700 PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE B23 OF B358 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.440 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE 824 OF B358 Number  : 03.7.292-1.0 0 Date : 03/03/2000 Created  : Mon Oct 27 08:45:58 1997 Time 14:31:48.89 Case 0003: LaSalle UHS (Updated Worst 36-Day Temp.; Ti=99.3F 0 0300; power uprat SEASONAL

SUMMARY

FOR SUMMER ( 6/1900 - 8/1900 ) QUANTITY MONTHLY AVERAGES AVERAGE JUN JUL AUG VALUE LAKE SEEPAGE (CFS) .00 -. 18 -. 16 -. 18 TOTAL EVAP (CFS) .00 -1.39 -1.27 -1.37 NATURAL EVAP (CFS) .00 -. 76 -. 71 -. 76 FORCED EVAP (CFS) .00 -. 63 -. 55 -. 62 PRECIPITATION (CFS) .00 .00 .00 .00 MAKEUP (CFS) .00 .00 .00 .00 BLOWDOWN (CFS) .00 .00 .00 .00 RUNOFF (CPS) .00 .00 .00 .00 DAM SPILL (CFS) .00 .00 .00 .00 LAKE ELEVATION (FEET) .00 689.36 688.75 689.28 DISSOLVED SOLIDS (PPM) .00 .00 .00 .00 NATURAL LAKE TEMP (F) .00 88.80 92.61 89.33 LAKE INLET TEMP (F) .00 99.71 101.84 100.01 LAKE OUTLET TEMP (F) .00 89.95 93.64 90.46 TEMPERATURE FREQUENCY OF OCCURENCES 1% 5% 50% NATURAL LAKE TEMP (F) 97.0 95.3 89.1 LAKE INLET TEMP (F) 125.0 109.0 99.3 LAKE OUTLET TEMP (F) 99.0 96.8 90.2 PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE B25 OF B358 Number  : 03.7.292-1.0 0 Date : 03/03/2000 Created  : Mon Oct 27 08:45:58 1997 Time : 14:31:48.89 Case 0003: LaSalle UHS (Updated Worst 36-Day Temp.; Ti=99.3F @ 0300; power uprat CUMULATIVE SEASONAL

SUMMARY

SUMMER QUANTITY MONTHLY AVERAGES AVERAGE JUN JUL AUG VALUE LAKE SEEPAGE (CFS) .00 -. 18 -. 16 -. 18 TOTAL EVAP (CFS) .00 -1.39 -1.27 -1.37 NATURAL EVAP (CFS) .00 -. 76 -. 71 -. 76 FORCED EVAP (CFS) .00 -. 63 -. 55 -. 62 PRECIPITATION (CFS) .00 .00 .00 .00 MAKEUP (CFS) .00 .00 .00 .00 BLOWDOWN (CFS) .00 .00 .00 .00 RUNOFF (CFS) .00 .00 .00 .00 DAM SPILL (CFS) .00 .00 .00 .00 LAKE ELEVATION (FEET) .00 689.36 688.75 689.28 DISSOLVED SOLIDS (PPM) .00 .00 .00 .00 NATURAL LAKE TEMP (F) .00 88.80 92.61 89.33 LAKE INLET TEMP (F) .00 99.71 101.84 100.01 LAKE OUTLET TEMP (F) .00 89.95 93.64 90.46 TEMPERATURE FREQUENCY OF OCCURENCES 1% 5% 50%

NATURAL LAKE TEMP (F) 97.0 95.3 89.1 LAKE INLET TEMP (F) 125.0 109.0 99.3 LAKE OUTLET TEMP (F) 99.0 96.8 90.2 PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE B26 OF B358 Number 03.7.292-1.0 0 Date 03/03/2000 Created Mon Oct 27 08:45:58 1997 Time  : 14:31:48.89 Case 0003: LaSalle UHS (Updated Worst 36-Day Temp.; Ti=99.3F @ 0300; power uprat TOTAL CUMULATIVE

SUMMARY

QUANTITY MAXIMUM MINIMUM AVERAGE TOTAL FLOW VALUE ( DATE ) VALUE ( DATE ) VALUE (ACRE-FEET) LAKE SEEPAGE (CFS) -. 16 8051900) -. 20 7011900) - .18 -1.26209E+01 TOTAL EVAP (CFS) -. 25 8041900) -4.51 7031900) -1.37 -9.7B949E+01 NATURAL EVAP (CFS) .00 7011900) -3.55 7031900) -. 76 -5.39557E+01 FORCED EVAP (CFS) -. 25 8041900) -1.70 7021900) -. 62 -4.39392E+01 PRECIPITATION (CFS) .00 7011900) .00 7011900) .00 0.OOOOOE+00 MAKEUP (CFS) .00 7011900) .00 7011900) .00 0.OOOOOE+00 BLOWDOWN (CFS) .00 7011900) .00 7011900) .00 0.OOOOOE+00 RUNOFF (CFS) .00 7011900) .00 7011900) .00 0.OOOOOE+00 DAM SPILL (CFS) .00 7011900) .00 7011900) .00 0.OOOOOE+00 LAKE ELEVATION (FEET) 690.00 7011900) 688.66 8051900) 689.28 4..92179E+04 DISSOLVED SOLIDS (PPM) .00 7011900) .00 7011900) .00 0.OOOOOE+00 NATURAL LAKE TEMP (F) 97.60 7011900) 82.69 7071900) 89.33 6.37839E+03 LAKE INLET TEMP (F) 133.32 7011900) 93.57 7261900) 100.01 7.14110E+03 LAKE OUTLET TEMP (F) 99.94 7011900) 84.10 7071900) 90.46 6.45933E+03 TEMPERATURE FREQUENCY OF OCCURENCES 1% 5% 50% NATURAL LAKE TEMP (F) 97.0 95.3 89.1 LAKE INLET TEMP (F) 125.0 109.0 99.3 LAKE OUTLET TEMP (F) 99.0 96.8 90.2 PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE B27 OF B358 Number  : 03.7.292-1.0 0 Date 03/03/2000 Created :Mon Oct 27 08:45:58 1997 Time : 14:54:23.63 Case 0006: LaSalle UHS (Updated Worst 36-Day Temp.; Ti=98.6F @ 0600; power uprat 1 2 070100 080500 1 1 3 1 20 4 1 0.2 5500. 0 5 690. 690. 1. 6 83.83 464.9 75.45 418.4 82.15 381.9 73 .94 343.7 80.55 300.5 72.50 270.5 78.96 220.8 71.06 198. 7 77.33 142.6 69.60 128.4 29.70 71.7 26 .73 65.6 7 1 0 8 98.6 94.1 999 FPLANT R/I 86.0 TPRISE s/I 35.26 28.79 16.68 16.28 15.32 14.97 14.53 14.29 13.88 13.45 13.30 13.30 13.30 13.24 12.73 12.73 12.57 12.43 12.24 12.02 12.02 12.02 12.02 12.01 11.49 11.49 11.49 11.49 11.49 11.49 11.49 11.49 11.09 11.07 PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE B28 OF B358 Number 03.7.292-1.0 0 Date 03/03/2000 Created Mon Oct 27 08:45:58 1997 Time 14:54:23.68 11.07 11.07 11.07 10.87 10.86 10.86 10.50 10.50 10.50 10.50 10.50 10.50 10 .50 10.50 10.50 10.50 10.50 10.50 10 .50 10.50 10.50 10.27 9.99 9.99 9.99 9.99 9.99 9.99 9.99 9.99 9.99 9.99 9.99 9.99 9.99 9.99 9.99 9.99 9.99 9.99 9.72 9.70 9.70 9.70

9. 70 9.70 9.54 9.54 9.54 9.54 9.54 PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE B29 OF B358 Number  : 03.7.292-1.0 0 Date  : 03/03/2000 Created : Mon Oct 27 08:45:58 1997 Time 14:54:23.68 9.54 9.54 9.54 9.54 9.54 9.54 9.54 9.40 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE B30 OF B358 Number 03.7.292-1.0 0 Date : 03/03/2000 Created Mon Oct 27 08:45:58 1997 Time : 14:54:23.68 9.19 9.19 9.15 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.72 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.52 8.49 PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE B31 OF B358 Number  : 03.7.292-1.0 0 Date  : 03/03/2000 Created :Mon Oct 27 08:45:58 1997 Time 14:54:23.68 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE B32 OF B358 Number  : 03.7.292-1.0 0 Date : 03/03/2000 Created :Mon Oct 27 08:45:58 1997 Time : 14:54:23.79 8.49 8.44 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 END PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE B33 OF B358 Number 03.7.292-1.0 0 Date : 03/03/2000 Created  : Mon Oct 27 08:45:58 1997 Time : 14:54:24.23 Case 0006: LaSalle UHS (Updated Worst 36-Day Temp.; Ti=98.6F @ 0600; power uprat RUN 36 DAYS FROM 70100 TO 80500 PLOT FILE OPTION : 1 CYCLE FLAG: 1 WEATHER FILE OPTION: 1 ANEMOMETER HEIGHT 20.00 DENSITY: 62.40 SEEPAGE: .20 LAKE LENGTH: 5500.00 INITIAL LAKE ELEVATION = 690.00 DRAWDOWN CURVE ELEVATION TOTAL AREA TOTAL VOLUME EFF AREA EFF VOLUME 690.000 83.830 464.900 75.450 418.400 689.000 82.150 381.900 73.940 343.700 688.000 80.550 300.500 72.500 270.500 687.000 78.960 220.800 71.060 198.700 686.000 77.330 142.600 69.600 128.400 685.000 29.700 71.700 26.730 65.600 PLOT FILE FREQ 1 INCREMENTS AT 0 HOURS INITIAL FORCED/NATURAL LAKE TEMPS. 98.60 94.10 WEATHER STATION ID 0. PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE B34 OF B358 Number 03.7.292-1.0 0 Date  : 03/03/2000 Created Mon Oct 27 08:45:58 1997 Time 14:54:24.23 Case 0006: LaSalle UHS (Updated Worst 36-Day Temp.; Ti=98.6F @ 0600; power uprat FPLANT 70100 - 80500 R/I 86.000 TPRISE 70100 - 80500 S/I 35.260 28.790 16.680 16.280 15.320 14.970 14.530 14.290

13. 880 13.450 13.300 13.300 13.300 13.240 12.730 12.730 12.570 12.430 12.240 12.020 12.020 12.020 12.020 12.010 11.490 11.490 11.490 11.490 11.490 11.490 11.490 11.490 11.090 11.070 11.070 11.070 11.070 10.870 10.860 10.860 10.500 10.500 10.500 10.500 10.500 10.500 10.500 10.500 10.500 10.500 10.500 10.500 10.500 10.500 10.500 10.270 9,990 9.990 9.990 9.990 9.990 9.990 9.990 9.990 9.990 9.990 9.990 9.990 9.990 9.990 9.990 9.990 9.990 9.990 9.720 9.700 9.700 9.700 9.700 9.700 9.540 9.540 9.540 9.540 9.540 9.540 9.540 9.540 9.540 9.540 9.540 9.540 9.400 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.150 8.850 8.8S0 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8 850 8.850 8.850 8.850 8 850 8.850 8.850 8.850 8 850 8.850 8.720 8,700 8.700 8.700 8.700 8.700 8.700 8.700 8.700 8.700 8.700 8.700 8.700 8.700 8.700 8.700 8.700 8.700 8.700 8.700 PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE B35 OF B358 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.440 8 220 8.220 8.220 8.220 8 .220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8 .220 8.220 8.220 8.220 8 .220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE B36 OF B358 Number  : 03.7.292-1.0 0 Date : 03/03/2000 Created :Mon Oct 27 08:45:58 1997 Time : 14:54:24.40 Case 0006: LaSalle UHS (Updated Worst 36-Day Temp.; Ti=98.6F S 0600; power uprat SEASONAL

SUMMARY

FOR SUMMER ( 6/1900 - 8/1900 ) QUANTITY MONTHLY AVERAGES AVERAGE JUN JUL AUG VALUE LAKE SEEPAGE (CFS) .00 -. 18 -. 16 -. 18 TOTAL EVAP (CFS) .00 -1.39 -1.29 -1.38 NATURAL EVAP (CFS) .00 -. 76 -. 74 -. 76 FORCED EVAP (CFS) .00 -. 63 -. 55 -. 62 PRECIPITATION (CFS) .00 .00 .00 .00 MAKEUP (CFS) .00 .00 .00 .00 BLOWDOWN (CFS) .00 .00 .00 .00 RUNOFF (CFS) .00 .00 .00 .00 DAM SPILL (CFS) .00 .00 .00 .00 LAKE ELEVATION (FEET) .00 689.36 688.75 689.28 DISSOLVED SOLIDS (PPM) .00 .00 .00 .00 NATURAL LAKE TEMP (F) .00 88.75 92.63 89.29 LAKE INLET TEMP (F) .00 99.67 101.81 99.97 LAKE OUTLET TEMP (F) .00 89.91 93.61 90.42 TEMPERATURE FREQUENCY OF OCCURENCES 1% 5% 50% NATURAL LAKE TEMP (F) 96.8 95.2 89.0 LAKE INLET TEMP (F) 127.0 108.0 99.3 LAKE OUTLET TEMP (F) 99.0 96.5 90.2 PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE B37 OF B358 Number  : 03.7.292-1.0 0 Date 03/03/2000 Created : Mon Oct 27 08:45:58 1997 Time : 14:54:24.40 Case 0006: LaSalle UHS (Updated Worst 36-Day Temp,; Ti=98.6F @ 0600; power uprat CUMULATIVE SEASONAL

SUMMARY

SUMMER QUANTITY MONTHLY AVERAGES AVERAGE JUN JUL AUG VALUE LAKE SEEPAGE (CFS) .00 -. 18 -. 16 -. 18 TOTAL EVAP (CFS) .00 -1.39 -1.29 -1.38 NATURAL EVAP (CFS) .00 -. 76 -. 74 -. 76 FORCED EVAP (CFS) .00 -. 63 -. 55 -. 62 PRECIPITATION (CFS) .00 .00 .00 .00 MAKEUP (CFS) .00 .00 .00 .00 BLOWDOWN (CFS) .00 .00 .00 .00 RUNOFF (CFS) .00 .00 .00 .00 DAM SPILL (CFS) .00 .00 .00 .00 LAKE ELEVATION (FEET) .00 689.36 688.75 689.28 DISSOLVED SOLIDS (PPM) .00 .00 .00 .00 NATURAL LAKE TEMP (F) .00 88.75 92.63 89.29 LAKE INLET TEMP (F) .00 99.67 101.81 99.97 LAKE OUTLET TEMP (F) .00 89.91 93.61 90.42 TEMPERATURE FREQUENCY OF OCCURENCES 1% 5% 50%

NATURAL LAKE TEMP (F) 96.8 95.2 89.0 LAKE INLET TEMP (F) 127.0 108.0 99.3 LAKE OUTLET TEMP (F) 99.0 96.5 90.2 PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE B38 OF B358 Number 03.7,292-1.0 0 Date : 03/03/2000 Created Mon Oct 27 08:45:58 1997 Time 14:54:24.45 Case 0006: LaSalle UHS (Updated Worst 36-Day Temp.; Ti=98.6F @ 0600; power uprat TOTAL CUMULATIVE

SUMMARY

QUANTITY MAXIMUM MINIMUM AVERAGE TOTAL FLOW VALUE ( DATE ) VALUE ( DATE ) VALUE (ACRE-FEET) LAKE SEEPAGE (CFS) -. 16 8051900) -. 20 7011900) -. 18 -1.26178E+01 TOTAL EVAP (CFS) - .25 8041900) -4.51 7031900) -1.38 -9.81999E+01 NATURAL EVAP (CFS) .00 7011900) -3.53 7031900) -. 76 -5.42259E+01 FORCED EVAP (CFS) -. 25 8041900) -1.62 7011900) -. 62 -4.39740E+01 PRECIPITATION (CFS) .00 7011900) .00 7011900) .00 0.OOOOOE+00 MAKEUP (CFS) .00 7011900) .00 7011900) .00 0.OOOOOE+00 BLOWDOWN (CFS) .00 7011900) .00 7011900) .00 0.OOOOOE+00 RUNOFF (CFS) .00 7011900) .00 7011900) .00 0.OOOOOE+00 DAM SPILL (CFS) .00 7011900) .00 7011900) .00 0.OOOOOE+00 LAKE ELEVATION (FEET) 689.99 7011900) 688.66 8051900) 689.28 4.92179E+04 DISSOLVED SOLIDS (PPM) .00 7011900) .00 7011900) .00 0.OOOOOE+00 NATURAL LAKE TEMP (F) 97.34 7011900) 82.67 7071900) 89.29 6.37598E+03 LAKE INLET TEMP (F) 132.80 7011900) 93.42 7261900) 99.97 7.13817E+03 LAKE OUTLET TEMP (F) 99.98 7011900) 84.00 7071900) 90.42 6.45642E+03 TEMPERATURE FREQUENCY OF OCCURENCES 1% 5% 50% NATURAL LAKE TEMP (F) 96.8 95.2 89.0 LAKE INLET TEMP (F) 127.0 108.0 99.3 LAKE OUTLET TEMP (F) 99.0 96.5 90.2 PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE B39 OF B358 Created : Mon Oct 27 08:45:58 1997 Time : 15:10:29.38 Case 0009: LaSalle UHS (Updated Worst 36-Day Temp.; Ti=98.OF @ 0900; power uprat 1 2 070100 080500 1 1 3 1 20 4 1 0.2 5500. 0 5 690. 690. 1. 6 83.83 464 .9 75.45 418.4 82.15 381.9 73.94 343.7 80.55 300.5 72.50 270.5 78.96 220.8 71.06 198.7 77.33 142.6 69.60 128.4 29.70 71.7 26.73 65.6 7 1 0 8 98.0 93.5 999 PPLANT R/I 86.0 TPRISE S/I 35.26 28.79 16.68 16.28 15.32 14.97 14.53 14.29 13.88 13.45 13.30 13.30 13.30 13.24 12.73 12.73 12.57 12.43 12.24 12.02 12 .02 12.02 12.02 12.01 11.49 11.49 11.49 11.49 11.49 11.49 11.49 11.49 11.09 11.07 PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE B40 OF B358 Number 03.7.292-1.0 0 Date 03/03/2000 1997 Time 15:10:29.38 Created Mon Oct 27 08:45:58 11.07 11.07 11.07 10.87 10.86 10.86 10.50 10.50 10.50 10.50 10.50 10.50 10.50 10.50 10.50 10.50 10.50 10.50 10.50 10.50 10.SO 10 .27 9.99 9.99 9.99 9.99 9.99 9.99 9.99 9.99 9.99 9.99 9.99 9.99 9.99 9.99 9.99 9.99 9.99 9.99 9.72 9.70 9.70 9.70 9.70 9.70 9.54 9.54 9.54 9.54 9.54 PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE B41 OF B358 Number 03.7.292-1.0 0 Date 03/03/2000 Created :Mon Oct 27 08:45:58 1997 Time : 15:10:29.38 9.54 9.54 9.54 9.54 9.54 9.54 9.54 9.40 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE B42 OF B358 Number  : 03.7.292-1.0 0 Date 03/03/2000 Created Mon Oct 27 08:45:58 1997 Time : 15:10:29.38 9.19 9.19 9.15 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.72 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.52 8.49 PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE B43 OF B358 Number 03.7.292-1.0 0 Date  : 03/03/2000 Time 15:10:29.38 Created Mon Oct 27 08:45:58 1997 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE B44 OF B358 Number  : 03.7.292-1.0 0 Date 03/03/2000 1997 Time  : 15:10:29.49 Created : Mon Oct 27 08:45:58 8.49 8.44 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8 .22 8 .22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 END PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE B45 OF B358 Number  : 03.7.292-1.0 0 Date : 03/03/2000 Created :Mon Oct 27 08:45:58 1997 Time : 15:10:29.99 Case 0009: LaSalle UHS (Updated Worst 36-Day Temp.; Ti=98.OF @ 0900; power uprat RUN 36 DAYS FROM 70100 TO 80500 PLOT FILE OPTION : 1 CYCLE FLAG: 1 WEATHER FILE OPTION: 1 ANEMOMETER HEIGHT 20.00 DENSITY: 62.40 SEEPAGE: .20 LAKE LENGTH: 5500.00 INITIAL LAKE ELEVATION = 690.00 DRAWDOWN CURVE ELEVATION TOTAL AREA TOTAL VOLUME EFF AREA EFF VOLUME 690.000 83.830 464.900 75.450 418.400 689.000 82.150 381.900 73.940 343.700 688.000 80.550 300.500 72.500 270.500 687.000 78.960 220.800 71.060 198.700 686.000 77.330 142.600 69.600 128.400 685.000 29.700 71.700 26.730 65.600 PLOT FILE FREQ I INCREMENTS AT 0 HOURS INITIAL FORCED/NATURAL LAKE TEMPS. = 98.00 93.50 WEATHER STATION ID 0. PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE B46 OF B358 Number 03.7.292-1.0 0 Date 03/03/2000 Created Mon Oct 27 08:45:58 1997 Time : 15:10:29.99 Case 0009: LaSalle UHS (Updated Worst 36-Day Temp.; Ti=98.0F @ 0900; power uprat FPLANT 70100 - 80500 R/I 86.000 TPRISE 70100 - 8osoo s/I 35.260 28.790 16.680 16.280 15.320 14.970 14.530 14.290 13.880 13.450 13.300 13.300 13.300 13.240 12.730 12.730 12.570 12.430 12.240 12.020 12.020 12.020 12.020 12.010 11.490 11.490 11.490 11.490 11.490 11,490 11.490 11.490 11.090 11.070 11.070 11.070 11.070 10.870 10.860 10.860 10.500 10.500 10.500 10.500 10.500 10.500 10.500 10.500 10.500 10.500 10.500 10.500 10.500 10.500 10.500 10.270 9.990 9.990 9.990 9.990 9.990 9.990 9.990 9.990 9.990 9.990 9.990 9.990 9.990 9.990 9.990 9.990 9.990 9.990 9.720 9.700 9.700 9.700 9.700 9.700 9.540 9.540 9.540 9.540 9.540 9.540 9.540 9.540 9.540 9.540 9.540 9.540 9.400 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9 .190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.150 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8,850 8.850 8.850 8.850 8.850 8.850 8.850 8.720 8.700 8.700 8.700 8.700 8.700 8.700 8.700 8.700 8.700 8.700 8.700 8.700 8.700 8.700 8.700 8.700 8.700 8.700 8.700 PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE B47 OF B358 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8 .490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.440 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE B48 OF B358 Number 03.7.292-1.0 0 Date  : 03/03/2000 Created :Mon Oct 27 08:45:58 1997 Time 15:10:30.26 Case 0009: LaSalle UHS (Updated Worst 36-Day Temp.; Ti=98.0F @ 0900; power uprat SEASONAL

SUMMARY

FOR SUMMER ( 6/1900 - 8/1900 ) QUANTITY MONTHLY AVERAGES AVERAGE JUN JUL AUG VALUE LAKE SEEPAGE (CFS) .00 -. 18 -. 16 -. 18 TOTAL EVAP (CFS) .00 -1.39 -1.31 -1.38 NATURAL EVAP (CrS) .00 -. 76 -. 76 -. 76 FORCED EVAP (CFS) .00 -. 63 -. 55 -. 62 PRECIPITATION (CFS) .00 .00 .00 .00 MAKEUP (CFS) .00 .00 .00 .00 BLOWDOWN (CFS) .00 .00 .. 00 .00 RUNOFF (CFS) .00 .00 .00 .00 DAM SPILL (CFS) .00 .00 .00 .00 LAKE ELEVATION (FEET) .00 689.36 688.75 689.28 DISSOLVED SOLIDS (PPM) .00 .00 .00 .00 NATURAL LAKE TEMP (F) .00 88.71 92.63 89.26 LAKE INLET TEMP (F) .00 99.63 101.80 99. 93 LAKE OUTLET TEMP (F) .00 89.86 93.60 90.38 TEMPERATURE FREQUENCY OF OCCURENCES 1% 5% 50% NATURAL LAKE TEMP (F) 96.8 95.0 89.0 LAKE INLET TEMP (F) 128.0 107.0 99.3 LAKE OUTLET TEMP (F) 99.0 96.4 90.1 PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE B49 OF B358 Number 03.7.292-1.0 0 Date : 03/03/2000 Created Mon Oct 27 08:45:58 1997 Time : 15:10:30.26 Case 0009: LaSalle UHS (Updated Worst 36-Day Temp.; Ti=98.0F @ 0900; power uprat CUMULATIVE SEASONAL

SUMMARY

SUMMER QUANTITY MONTHLY AVERAGES AVERAGE JUN JUL AUG VALUE LAKE SEEPAGE (CFS) .00 -. 18 -. 16 -. 18 TOTAL EVAP (CFS) .00 -1.39 -1.31 -1.38 NATURAL EVAP (CFS) .00 -. 76 -. 76 -. 76 FORCED EVAP (CPS) .00 -. 63 -. 55 -. 62 PRECIPITATION (CFS) .00 .00 .00 .00 MAKEUP (CFS) .00 .00 .00 .00 BLOWDOWN (CFS) .00 .00 .00 .00 RUNOFF (CFS) .00 .00 .00 .00 DAM SPILL (CFS) .00 .00 .00 .00 LAKE ELEVATION (FEET) .00 689.36 688.75 689.28 DISSOLVED SOLIDS (PPM) .00 .00 .00 .00 NATURAL LAKE TEMP (F) .00 88.71 92.63 89.26 LAKE INLET TEMP (F) .00 99.63 101.80 99.93 LAKE OUTLET TEMP (F) .00 89.86 93.60 90.38 TEMPERATURE FREQUENCY OF OCCURENCES 1% 5% 50%

NATURAL LAKE TEMP (F) 96.8 95.0 89.0 LAKE INLET TEMP (F) 128.0 107.0 99.3 LAKE OUTLET TEMP (F) 99.0 96.4 90.1 PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE B50 OF B358 Program LAKET-PC Page : 11 Number  : 03.7.292-1.0 0 Date 03/03/2000 Created :Mon Oct 27 08:45:58 1997 Time 15:10:30.26 Case 0009: LaSalle UHS (Updated Worst 36-Day Temp.; Ti=98.OF @ 0900; power uprat TOTAL CUMULATIVE

SUMMARY

QUANTITY MAXIMUM MINIMUM AVERAGE TOTAL FLOW VALUE ( DATE ) VALUE ( DATE VALUE (ACRE-FEET) LAKE SEEPAGE (CFS) -. 16 8051900) -. 20 7011900) -. 18 -1.26189E+01 TOTAL EVAP (CFS) -. 25 8041900) -4.60 7031900) -1.38 -9.83474E+01 NATURAL EVAP (CFS) .00 7011900) -3.51 7031900) -. 76 -5.43582E+01 FORCED EVAP (CFS) -. 25 8041900) -1.63 7011900) -62 -4.39893E+01 PRECIPITATION (CFS) .00 7011900) .00 7011900) .00 0.OOOOOE+00 MAKEUP (CFS) .00 7011900) .00 7011900) .00 0.OOOOOE+00 BLOWDOWN (CFS) .00 7011900) .00 7011900) .00 0.OOOOOE+00 RUNOFF (CFS) .00 7011900) .00 7011900) .00 0.OOOOOE+00 DAM SPILL (CFS) .00 7011900) .00 7011900) .00 0.OOOOOE+00 LAKE ELEVATION (FEET) 689.99 7011900) 688.66 8051900) 689.28 4.92179E+04 DISSOLVED SOLIDS (PPM) .00 7011900) .00 7011900) .00 0.OOOOOE+00 NATURAL LAKE TEMP (F) 97.06 7011900) 82.65 7061900) 89.26 6.37326E+03 LAKE INLET TEMP (F) 133.90 7011900) 93.50 7251900) 99.93 7.13538E+03 LAKE OUTLET TEMP (F) 100.00 7011900) 84.00 7061900) 90.38 6.45365E+03 TEMPERATURE FREQUENCY OF OCCURENCES 1% 5% 50% NATURAL LAKE TEMP (F) 96.8 95.0 89.0 LAKE INLET TEMP (F) 128.0 107.0 99.3 LAKE OUTLET TEMP (F) 99.0 96.4 90.1 PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE B51 OF B358 Program LAKET-PC Page : 1 Number 03.7.292-1.0 0 Date : 03/07/2000 Created Mon Oct 27 08:45:58 1997 Time : 17:30:51.66 Case 0009: LaSalle UHS (Updated Worst 5/1/30-Day Temp.; Ti=98.0F a 0900; power u 1 2 070100 080500 1 1 3 1 20 4 1 0.2 5500. 0 5 690. 690. 1. 6 83.83 464.9 75.45 418.4 82.15 381.9 73.94 343.7 80.55 300.5 72.50 270.5 78.96 220.8 71.06 198.7 77.33 142 . 6 69.60 128.4 29.70 71.7 26.73 65.6 7 1 0 8 98.0 93 .5 999 FPLANT R/I 86.0 TPRISE S/I 35.26 28.79 16.68 16.28 15.32 14.97 14.53 14.29 13.88 13.45 13.30 13.30 13.30 13.24 12.73 12.73 12.57 12.43 12.24 12.02 12.02 12.02 12.02 12.01 11.49 11.49 11.49 11.49 11.49 11.49 11.49 11.49 11.09 11.07 PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE B52 OF B358 Program LAKET-PC Page : 2 Number 03.7.292-1.0 0 Date 03/07/2000 Created Mon Oct 27 08:45:58 1997 Time 17:30:51.71 11.07 11.07 11.07 10.87 10.86 10 .86 10.50 10.50 10.50 10.50 10.50 10.50 10.50 10 .50 10 .50 10.50 10.50 10 .50 10.50 10.50 10.50 10.27 9.99 9.99 9.99 9.99 9.99 9.99 9.99 9.99 9.99 9.99 9.99 9.99 9.99 9.99 9.99 9.99 9.99 9.99 9 .72 9.70 9.70 9.70 9.70 9.70 9.54 9.54 9.54 9.54 9.54 PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE B53 OF B358 Program : LAKET-PC Page : 3 Number  : 03.7.292-1.0 0 Date : 03/07/2000 Created :Mon Oct 27 08:45:58 1997 Time : 17:30:51.71 9.54 9.54 9.54 9.54 9.54 9.54 9.54 9.40 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE B54 OF B358 Program LAKET-PC Page : 4 Number 03.7.292-1.0 0 Date : 03/07/2000 Created Mon Oct 27 08:45:58 1997 Time : 17:30:51.71 9.19 9.19 9.15 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.72 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.52 8.49 PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE B55 OF B358 Program : LAKET-PC Page : 5 Number 03.7.292-1.0 0 Date : 03/07/2000 Created Mon Oct 27 08:45:58 1997 Time : 17:30:51.71 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE B56 OF B358 Program : LAKET-PC Page : 6 Number  : 03.7.292-1.0 0 Date 03/07/2000 Created :Mon Oct 27 08:45:58 1997 Time : 17:30:51.82 8.49 8.44 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 END PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE B57 OF B358 Program  : LAKET-PC Page: 7 Number  : 03.7.292-1.0 0 Date 03/07/2000 Created Mon Oct 27 08:45:58 1997 Time : 17:30:52.21 Case 0009: LaSalle UHS (Updated Worst 5/1/30-Day Temp.; Ti=98.OF @ 0900; power u RUN 36 DAYS FROM 70100 TO 80500 PLOT FILE OPTION : 1 CYCLE FLAG: 1 WEATHER FILE OPTION: 1 ANEMOMETER HEIGHT 20.00 DENSITY: 62.40 SEEPAGE: .20 LAKE LENGTH: 5500.00 INITIAL LAKE ELEVATION = 690.00 DRAWDOWN CURVE ELEVATION TOTAL AREA TOTAL VOLUME EFF AREA EFF VOLUME 690.000 83.830 464.900 75.450 418.400 689.000 82.150 381.900 73.940 343.700 688.000 80.550 300.500 72.500 270.500 687.000 78.960 220.800 71.060 198.700 686.000 77.330 142.600 69.600 128.400 685.000 29.700 71.700 26.730 65.600 PLOT FILE FREQ 1 INCREMENTS AT 0 HOURS INITIAL FORCED/NATURAL LAKE TEMPS. = 98.00 93.50 WEATHER STATION ID 0. PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE B58 OF B358 Program : LAKET-PC Page : 8 Number 03.7.292-1.0 0 Date : 03/07/2000 Created :Mon Oct 27 08:45:58 1997 Time : 17:30:52.21 Case 0009: LaSalle UHS (Updated Worst 5/1/30-Day Temp.; Ti=98.0F @ 0900; power u FPLANT 70100 - 80500 R/I 86.000 TPRISE 70100 - 80500 S/I 35.260 28.790 16.680 16.280 15.320 14.970 14.530 14.290 13.880 13.450 13.300 13.300 13.300 13.240 12.730 12.730 12.570 12.430 12.240 12.020 12.020 12.020 12.020 12.010 11.490 11.490 11.490 11.490 11.490 11.490 11.490 11.490 11.090 11.070 11.070 11.070 11.070 10.870 10.860 10.860 10.500 10.500 10.500 10.500 10.500 10.500 10.500 10.500 10.500 10.500 10.500 10.500 10.500 10.500 10.500 10.270 9.990 9.990 9.990 9.990 9.990 9.990 9.990 9.990 9.990 9.990 9.990 9.990 9.990 9.990 9.990 9.990 9.990 9.990 9.720 9.700 9.700 9.700 9.700 9.700 9.540 9.540 9.540 9.540 9.540 9.540 9.540 9.540 9.540 9.540 9.540 9 .540 9.400 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9 .190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9 .190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.1S0 8.850 8.850 8.850 8.850 8.850 8.850 8.8S0 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8 .850 8.850 8 .720 8.700 8.700 8.700 8.700 8.700 8.700 8.700 8 .700 8.700 8.700 8.700 8.700 8.700 8.700 8.700 PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE B59 OF B358 8700

                        ;*7 o 'ov  8.520              8.490 8.490 8.490      8.490              8.490 8.490 8.490      8.490              8.490 8.490 8.490      8.490              8.490 8.490 8.490      8.490              8.490 8.490 8.490      8.490              8.490 8.490 8.490      8.490              8.490 8.490 8.490      8.490              8.490 8.490 8.490      8.490              8.490 8.490 8.490      8.490              8.490 8.490 8.490      8.490              8.490 8.490 8.490      8.490              8.490 8.490 8.490      8.490              8.490 8.490 8.490      8.490              8.490 8.440 8.220      8.220              8.220 8.220 8.220      8.220              8.220 8.220 8.220      8.220              8.220 8.220 8.220      8.220              8.220 8.220 8.220      8.220              8.220 8.220 8.220      8.220              8.220 8.220 8.220      8.220              8.220 8.220 8.220      8.220              8.220 8.220 8.220      8.220              8.220 8.220 8.220      8.220              8.220 8.220 8.220      8.220              8.220 8.220 8.220      8.220              8.220 8.220 PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE B60 OF B358 Program LAKET-PC Page 9 NUmber 03.7.292-1.0 0 Date 03/07/2000 Created Mon Oct 27 08:45:58 1997 Time 17:30:52.54 Case 0009: LaSalle uH-S (Updated Worst 5/1/30-Day Temp.; Ti=98.OF @ 0900; power u SEASONAL

SUMMARY

FOR SUMMER ( 6/1900 - 8/1900 ) QUANTITY MONTHLY AVERAGES AVERAGE JUN JUL AUG VALUE LAKE SEEPAGE (CFS) .00 -. 18 -. 15 -. 17 TOTAL EVAP (CFS) .00 -1.63 -1.32 -1.59 NATURAL EVAP (CFS) .00 -. 99 -. 77 -. 96 FORCED EVAP (CFS) .00 -. 65 -. 55 -. 63 PRECIPITATION (CFS) .00 .00 .00 .00 MAKEUP (CFS) .00 .00 .00 .00 BLOWDOWN (CFS) .00 .00 .00 .00 RUNOFF (CFS) .00 .00 .00 .00 DAM SPILL (CFS) .00 .00 .00 .00 LAKE ELEVATION (FEET) .00 689.29 688.57 689.19 DISSOLVED SOLIDS (PPM) .00 .00 .00 .00 NATURAL LAKE TEMP (F) .00 90.87 89.48 90.67 LAKE INLET TEMP (F) .00 101.56 98.70 101.16 LAKE OUTLET TEMP (F) .00 91.80 90.52 91.62 TEMPERATURE FREQUENCY OF OCCURENCES 1% 5% 50% NATURAL LAKE TEMP (F) 97.0 95.8 90.8 LAKE INLET TEMP (F) 128.0 109.3 100.8 LAKE OUTLET TEMP (F) 99.0 97.1 91.8 PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE B61 OF B358 Program  : LAKET-PC Page : 10 Number  : 03.7.292-1.0 0 Date : 03/07/2000 Created :Mon Oct 27 08:45:58 1997 Time : 17:30:52.54 Case 0009: LaSalle UHS (Updated Worst 5/1/30-Day Temp.; Ti=98.OF 0 0900; power u CUMULATIVE SEASONAL

SUMMARY

SUMMER QUANTITY MONTHLY AVERAGES AVERAGE JUN JUL AUG VALUE LAKE SEEPAGE (CFS) .00 -. 18 -. 15 -. 17 TOTAL EVAP (CFS) .00 -1.63 -1.32 -1.59 NATURAL EVAP (CFS) .00 -. 99 -.77 -. 96 FORCED EVAP (CFS) .00 -. 65 -. 55 -. 63 PRECIPITATION (CFS) .00 .00 .00 .00 MAKEUP (CFS) .00 .00 .00 .00 BLOWDOWN (CFS) .00 .00 00 .00 RUNOFF (CFS) .00 .00 .00 .00 DAM SPILL (CFS) .00 .00 .00 .00 LAKE ELEVATION (FEET) .00 689.29 688.57 689.19 DISSOLVED SOLIDS (PPM) .00 .00 .00 .00 NATURAL LAKE TEMP (F) .00 90.87 89.48 90.67 LAKE INLET TEMP (F) .00 101.56 98.70 101.16 LAKE OUTLET TEMP (F) .00 91.80 90.52 91.62 TEMPERATURE FREQUENCY OF OCCURENCES 1% 5% 50%

NATURAL LAKE TEMP (F) 97.0 95.8 90.8 LAKE INLET TEMP (F) 128.0 109.3 100.8 LAKE OUTLET TEMP (F) 99.0 97.1 91.8 PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE B62 OF B358 Program LAKET-PC Page : 11 Number  : 03.7.292-1.0 0 Date 03/07/2000 Created :Mon Oct 27 08:45:58 1997 Time 17:30:52.54 Case 0009: LaSalle UHS (Updated Worst 5/1/30-Day Temp.; Ti=98.OF @ 0900; power u TOTAL CUMULATIVE

SUMMARY

QUANTITY MAXIMUM MINIMUM AVERAGE TOTAL FLOW VALUE ( DATE ) VALUE ( DATE ) VALUE (ACRE-FEET) LAKE SEEPAGE (CFS) -. 15 8051900) -. 20 7011900) -. 17 -1.24192E+01 TOTAL EVAP (CFS) -. 28 8051900) -3.97 7051900) -1.59 -1.13531E+02 NATURAL EVAP (CFS) .00 7031900) -2.68 7051900) -. 96 -6.83140E+01 FORCED EVAP (CFS) -26 7311900) -1.52 7011900) -. 63 -4.52166E+01 PRECIPITATION (CFS) .00 7011900) .00 7011900) .00 0.OOOOOE+00 MAKEUP (CFS) .00 7011900) .00 7011900) .00 0.OOOOOE+00 BLOWDOWN (CFS) .00 7011900) .00 7011900) .00 0.OOOOOE+00 RUNOFF (CFS) .00 7011900) .00 7011900) .00 0.OOOOOE+00 DAM SPILL (CFS) .00 7011900) .00 7011900) .00 0.OOOOOE+00 LAKE ELEVATION (FEET) 689.99 7011900) 688.47 8051900) 689.19 4.92118E+04 DISSOLVED SOLIDS (PPM) .00 7011900) .00 7011900) .00 0.OOOOOE+00 NATURAL LAKE TEMP (F) 97.57 7041900) 82.25 7241900) 90.67 6.47458E+03 LAKE INLET TEMP (F) 133.38 7011900) 91.65 7241900) 101.16 7.22337E+03 LAKE OUTLET TEMP (F) 99.94 7011900) 83.16 7241900) 91.62 6.54203E+03 TEMPERATURE FREQUENCY OF OCCURENCES 1% 5% 50% NATURAL LAKE TEMP (F) 97.0 95.8 90.8 LAKE INLET TEMP (F) 128.0 109.3 100.8 LAKE OUTLET TEMP (F) 99.0 97.1 91.8 PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE B63 OF B358 Program : LAKET-PC Page : 1 Number  : 03.7.292-1.0 0 Date 03/06/2000 Created Mon Oct 27 08:45:58 1997 Time 11:12:17.94 Case 0012: LaSalle UHS (Updated Worst 5/1/30-Day Temp.; Ti=98.5F @ 1200; power uprat 1 2 070100 080500 1 1 3 1 20 4 1 0.2 5500. 0 5 690. 690. 1. 6 83.83 464 .9 75.45 418.4 82.15 381.9 73.94 343.7 80.55 300.5 72.50 270.5 78.96 220.8 71.06 198.7 77.33 142 .6 69.60 128.4 29.70 71.7 26.73 65.6 7 1 0 8 98.5 94.0 999 FPLANT R/I 86.0 TPRISE S/I 35.26 28.79 16.68 16.28 15.32 14.97 14.53 14.29 13.88 13.45 13.30 13.30 13.30 13.24 12.73 12.73 12.57 12.43 12.24 12.02 12.02 12.02 12.02 12.01 11.49 11.49 11.49 11.49 11.49 11.49 11.49 11.49 11.09 11.07 PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE B64 OF B358 Program : LAKET-PC Page 2 Number  : 03.7.292-1.0 0 Date 03/06/2000 Created Mon Oct 27 08:45:58 1997 Time 11:12:17.99 11.07 11.07 11.07 10.87 10.86 10.86 10.50 10.50 10.50 10.50 10.50 10.50 10.50 10.50 10.50 10.50 10.50 10.50 10.50 10.50 10.50 10.27 9.99 9.99 9.99 9.99 9.99 9.99 9.99 9.99 9.99 9.99 9.99 9.99 9.99 9.99 9.99 9.99 9.99 9.99 9.72 9.70 9.70 9.70 9.70 9.70 9.54 9.54 9.54 9.54 9.54 PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE B65 OF B358 Program : LAKET-PC Page : 3 Number  : 03.7.292-1.0 0 Date : 03/06/2000 Created Mon Oct 27 08:45:58 1997 Time : 11:12:18.05 9.54 9.54 9.54 9.54 9.54 9.54 9.54 9.40 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE B66 OF B358 Program LAKET-PC Page : 4 Date 03/06/2000 Number 03.7.292-1.0 0 Time 11:12:18.05 Created Mon Oct 27 08:45:58 1997 9.19 9.19 9.15 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8 .72 8 .70 8 .70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.52 8.49 PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE B67 OF B358 Program : LAKET-PC Page : 5 Number 03.7.292-1.0 0 Date : 03/06/2000 Created Mon Oct 27 08:45:58 1997 Time : 11:12:18.05 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE B68 OF B358 Program LAKET-PC Page : 6 Date : 03/06/2000 Number  : 03.7.292-1.0 0 Time : 11:12:18.05 Created Mon Oct 27 08:45:58 1997 8.49 8.44 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 END PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE B69 OF B358 Program : LAKET-PC Page : 7 Number  : 03.7.292-1.0 0 Date : 03/06/2000 Created :Mon Oct 27 08:45:58 1997 Time : 11:12:18.43 Case 0012: LaSalle UHS (Updated Worst 5/1/30-Day Temp.; Ti=98.5F 0 1200; power uprat RUN 36 DAYS FROM 70100 TO 80500 PLOT FILE OPTION : 1 CYCLE FLAG: 1 WEATHER FILE OPTION: I ANEMOMETER HEIGHT 20 . 00 DENSITY: 62.40 SEEPAGE: .20 LAKE LENGTH: 5500.00 INITIAL LAKE ELEVATION = 690.00 DRAWDOWN CURVE ELEVATION TOTAL AREA TOTAL VOLUME EFF AREA EFF VOLUME 690.000 83.830 464.900 75.450 418.400 689.000 82.150 381.900 73.940 343.700 688.000 80.550 300.500 72.500 270.500 687.000 78.960 220.800 71.060 198.700 686.000 77.330 142.600 69.600 128.400 685.000 29.700 71.700 26.730 65.600 PLOT FILE FREQ 1 INCREMENTS AT 0 HOURS INITIAL FORCED/NATURAL LAKE TEMPS. = 98.50 94.00 WEATHER STATION ID 0. PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE B70 OF B358 Program LAKET-PC Page : 8 Number  : 03.7.292-1.0 0 Date : 03/06/2000 Created Mon Oct 27 08:45:58 1997 Time 11:12:18.43 Case 0012: LaSalle UHS (Updated Worst 5/1/30-Day Temp.; Ti=98.SF 0 1200; power uprat FPLANT 70100 - 80500 R/I 86.000 TPRISS 70100 - 80500 S/I 35.260 28.790 16.680 16.280 15.320 14.970 14.530 14.290 13.880 13.450 13.300 13.300 13.300 13.240 12.730 12.730 12.570 12.430 12.240 12.020 12.020 12.020 12.020 12.010 11.490 11.490 11.490 11.490 11.490 11.490 11.490 11.490 11.090 11.070 11.070 11.070 11.070 10.870 10.860 10.860 10.500 10.500 10.500 10.500 10.500 10.500 10.500 10.500 10.500 10.500 10.500 10.500 10.500 10.500 10.500 10.270 9.990 9.990 9.990 9.990 9.990 9.990 9.990 9.990 9.990 9.990 9.990 9.990 9.990 9.990 9.990 9.990 9.990 9.990 9.720 9.700 9.700 9.700 9.700 9.700 9.540 9.540 9.540 9.540 9.540 9. 540 9.540 9.540 9.540 9.540 9.540 9.540 9.400 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190

9. 190 9.190 9.190 9.190

9. 190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.150 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8.720 8.700 8.700 8.700 8.700 8.700 8.700 8.700 8.700 8.700 8.700 8.700 8.700 8.700 8.700 8.700 a ýnn PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE B71 OF B358 8.700 8.520 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8,490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8,490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.440 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE B72 OF B358 Program LAKET-PC Page 9 Number 03.7.292-1.0 0 Date 03/06/2000 Created Mon Oct 27 08:45:58 1997 Time 11:12:18.76 Case 0012: LaSalle UHS (Updated Worst 5/1/30-Day Temp.; Ti=98.5F @ 1200; power uprat SEASONAL

SUMMARY

FOR SUMMER ( 6/1900 - 8/1900 ) QUANTITY MONTHLY AVERAGES AVERAGE JUN JUL AUG VALUE LAKE SEEPAGE (CFS) .00 -. 18 -. 15 -. 17 TOTAL EVAP (CFS) .00 -1.64 -1.32 -1.59 NATURAL EVAP (CFS) .00 -. 99 -. 77 -. 96 FORCED EVAP (CFS) .00 -. 65 -. 55 -. 63 PRECIPITATION (CFS) .00 .00 .00 .00 MAKEUP (CFS) .00 .00 .00 .00 BLOWDOWN (CFS) .00 .00 .00 .00 RUNOFF (CFS) .00 .00 .00 .00 DAM SPILL (CFS) .00 .00 .00 .00 LAKE ELEVATION (FEET) .00 689.29 688.57 689.19 DISSOLVED SOLIDS (PPM) .00 .00 .00 .00 NATURAL LAKE TEMP (F) .00 90.88 89.48 90.68 LAKE INLET TEMP (F) .00 101.58 98.69 101.18 LAKE OUTLET TEMP (F) .00 91.81 90.51 91.63 TEMPERATURE FREQUENCY OF OCCURENCES 1% 5% 50% NATURAL LAKE TEMP (F) 97.0 95.8 90.9 LAKE INLET TEMP (F) 128.0 109.2 101.0 LAKE OUTLET TEMP (F) 99.0 96.9 91.8 PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE B73 OF B358 Program : LAKET-PC Page 10 Number  : 03.7.292-1.0 0 Date : 03/06/2000 Created :Mon Oct 27 08:45:58 1997 Time 11:12:18.76 Case 0012: LaSalle UHS (Updated Worst 5/1/30-Day Temp.; Ti=98.SF @ 1200; power uprat CUMULATIVE SEASONAL

SUMMARY

SUMMER QUANTITY MONTHLY AVERAGES AVERAGE JUN JUL AUG VALUE LAKE SEEPAGE (CFS) .00 -. 18 -. 15 -. 17 TOTAL EVAP (CFS) .00 -1.64 -1.32 -1.59 NATURAL EVAP (CFS) .00 -. 99 -. 77 -. 96 FORCED EVAP (CFS) .00 -. 65 -. 55 -. 63 PRECIPITATION (CFS) .00 .00 .00 .00 MAKEUP (CFS) .00 .00 .00 .00 BLOWDOWN (CFS) .00 .00 .00 .00 RUNOFF (CFS) .00 .00 .00 .00 DAN SPILL (CFS) .00 .00 .00 .00 LAKE ELEVATION (FEET) .00 689.29 688.57 689.19 DISSOLVED SOLIDS (PPM) .00 .00 .00 .00 NATURAL LAKE TEMP (F) .00 90.88 89.48 90.68 LAKE INLET TEMP (F) .00 101.58 98.69 101.18 LAKE OUTLET TEMP (F) .00 91.81 90.51 91.63 TEMPERATURE FREQUENCY OF OCCURENCES 1% 5% 50%

NATURAL LAKE TEMP (F) 97.0 95.8 90.9 LAKE INLET TEMP (F) 128.0 109.2 101.0 LAKE OUTLET TEMP (F) 99.0 96.9 91.8 PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE B74 OF B358 Program : LAKET-PC Page : 11 Number 03.7.292-1.0 0 Date 03/06/2000 Created Mon Oct 27 08:45:58 1997 Time 11:12:18.76 Case 0012: LaSalle UHS (Updated Worst 5/1/30-Day Temp.; Ti=98.SF @ 1200; power uprat TOTAL CUMULATIVE

SUMMARY

QUANTITY MAXIMUM MINIMUM AVERAGE TOTAL FLOW VALUE ( DATE ) VALUE ( DATE ) VALUE (ACRE-FEET) LAKE SEEPAGE (CFS) -. 15 8051900) -. 20 7011900) - .17 -1.24163E+01 TOTAL EVAP (CFS) -. 28 8051900) -3.86 7051900) -1.59 -1.13675E+02 NATURAL EVAP (CFS) .00 7031900) -2.67 7051900) -. 96 -6.84598E+01 FORCED EVAP (CFS) -. 26 7311900) -1.54 7011900) -. 63 -4.52152E+01 PRECIPITATION (CFS) .00 7011900) .00 7011900) .00 0.OOOOOE+00 MAKEUP (CFS) .00 7011900) .00 7011900) .00 0.OOOOOE+00 SLOWDOWN (CFS) .00 7011900) .00 7011900) .00 0.OOOOOE+00 RUNOFF (CFS) .00 7011900) .00 7011900) .00 0.OOOOOE+00 DAM SPILL (CFS) .00 7011900) .00 7011900) .00 0.OOOOOE+00 LAKE ELEVATION (FEET) 689.99 7011900) 688.47 8051900) 689.19 4.92117E+04 DISSOLVED SOLIDS (PPM) .00 7011900) .00 7011900) .00 O.O0000E+00 NATURAL LAKE TEMP (F) 97.50 7041900) 82.24 7241900) 90.68 6.47533E+03 LAKE INLET TEMP (F) 134.83 7011900) 91.65 7241900) 101.18 7.22482E+03 LAKE OUTLET TEMP (F) 99.99 7011900) 83.16 7241900) 91.63 6.54307E+03 TEMPERATURE FREQUENCY OF OCCURENCES 1% 5% 50% NATURAL LAKE TEMP (F) 97.0 95.8 90.9 LAKE INLET TEMP (F) 128.0 109.2 101.0 LAKE OUTLET TEMP (F) 99.0 96.9 91.8 PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE B75 OF B358 Program : LAXET-PC Page : 1 Number  : 03.7.292-1.0 0 Date : 03/06/2000 Created :Mon Oct 27 08:45:58 1997 Time : 13:02:19.27 Case 0015: LaSalle UHS (Updated Worst 5/1/30-Day Temp.; Ti=99.5F @ 1500; power u 1 2 070100 080500 1 1 3 1 20 4 1 0.2 5500. 0 5 690. 690. 1. 6 83.83 464.9 75.45 418.4 82.15 381.9 73.94 343.7 80.55 300.5 72.50 270.5 78.96 220.8 71.06 198.7 77.33 142.6 69.60 128.4 29.70 71.7 26.73 65.6 7 1 0 8 99.5 95.0 999 FPLANT R/I 86.0 TPRISE s/i 35.26 28.79 16.68 16.28 15.32 14.97 14.53 14.29 13.88 13.45 13.30 13.30 13.30 13.24 12.73 12.73 12.57 12.43 12.24 12.02 12.02 12.02 12.02 12.01 11.49 11.49 11.49 11.49 11.49 11.49 11.49 11.49 11.09 11.07 PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE B76 OF B358 Program .LAKET-PC Page : 2 Number 03.7.292-1.0 0 Date : 03/06/2000 Created Mon Oct 27 08:45:58 1997 Time 13:02:19.27 11.07 11.07 11.07 10.87 10.86 10.86 10.50 10.50 10.50 10.50 10.50 10.50 10.50 10.50 10.50 10.50 10.50 10.50 10.50 10.50 10.50 10.27 9.99 9.99 9.99 9.99 9.99 9.99 9.99 9.99 9.99 9.99 9.99 9.99 9.99 9.99 9.99 9.99 9.99 9.99 9.72 9.70 9.70 9.70 9.70 9.70 9.54 9.54 9.54 9.54 9.54 PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE B77 OF B358 Program LAKET-PC Page : 3 Number  : 03.7.292-1.0 0 Date 03/06/2000 Created Mon Oct 27 08:45:58 1997 Time : 13:02:19.27 9.54 9.54 9.54 9.54 9.54 9.54 9.54 9.40 9.19 9.19 9.19 9.39 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE B78 OF B358 Program LAKET-PC Page : 4 Humber 03.7.292-1.0 0 Date 03/06/2000 Created Mon Oct 27 08:45:58 1997 Time 13:02:19.27 9.19 9.19 9.15 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.72 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.52 8.49 PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE B79 OF B358 Program LAKET-PC Page : 5 Number 03.7.292-1.0 0 Date : 03/06/2000 Created Mon Oct 27 08:45:58 1997 Time 13:02:19.27 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE B80 OF B358 Page : 6 Program LAKET-PC Date : 03/06/2000 Number  : 03,7.292-1.0 0 Time : 13:02:19.38 Created : Mon Oct 27 08:45:58 1997 8.49 8.44 8.22 8.22 8 .22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8 .22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8 .22 8.22 8.22 8.22 8.22 8 .22 8 .22 8.22 END PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE B81 OF B358 Program LAKET-PC Page 7 Number  : 03.7.292-1.0 0 Date : 03/06/2000 Created :Mon Oct 27 08:45:58 1997 Time : 13:02:19.87 Case 0015: LaSalle UHS (Updated Worst 5/1/30-Day Temp.; Ti=99.SF @ 1500; power u RUN 36 DAYS FROM 70100 TO 80500 PLOT FILE OPTION : 1 CYCLE FLAG: 1 WEATHER FILE OPTION: 1 ANEMOMETER HEIGHT 20.00 DENSITY: 62.40 SEEPAGE: .20 LAKE LENGTH: 5500.00 INITIAL LAKE ELEVATION = 690.00 DRAWDOWN CURVE ELEVATION TOTAL AREA TOTAL VOLUME EFF AREA EFF VOLUME 690.000 83.830 464.900 75.450 418.400 689.000 82.150 381.900 73.940 343.700 688.000 80.550 300.500 72.500 270.500 687.000 78.960 220.800 71.060 198.700 686.000 77.330 142.600 69.600 128.400 685.000 29.700 71.700 26.730 65.600 PLOT FILE FREQ 1 INCREMENTS AT 0 HOURS INITIAL FORCED/NATURAL LAKE TEMPS. = 99.50 95.00 WEATHER STATION ID 0. PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE B82 OF B358 Program LAKET-PC Page 8 Number 03.7.292-1.0 0 Date 03/06/2000 Created :Mon Oct 27 08:45:58 1997 Time : 13:02:19.87 Case 0015: LaSalle UHS (Updated Worst 5/1/30-Day Temp.; Ti=99.SF @ 1500; power u FPLANT 70100 - 80500 R/r: 86.000 TPRISE 70100 - 80500 s/I 35.260 28.790 16.680 16.280 15.320 14.970 14.530 14.290 13.880 13.450 13.300 13.300 13.300 13.240 12.730 12.730 12.570 12.430 12.240 12.020 12.020 12.020 12.020 12.010 11.490 11.490 11.490 11.490 11.490 11.490 11.490 11.490 11.090 11.070 11.070 11.070 11.070 10.870 10.860 10.860 10.500 10.500 10.500 10.500 10.500 10.500 10.500 10.500 10.500 10.500 10.500 10.500 10.500 10.500 10.500 10.270 9.990 9.990 9.990 9.990 9.990 9.990 9.990 9.990 9.990 9.990 9.990 9.990 9.990 9.990 9.990 9.990 9.990 9.990 9.720 9.700 9.700 9.700 9.700 9.700 9.540 9.540 9.540 9.540 9.540 9.540 9.540 9.540 9.540 9.540 9.540 9.540 9.400 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9,190 9.190 9.190 9.190 9,190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.150 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8.720 8.700 8.700 8.700 8.700 8.700 8.700 8.700 8.700 8.700 8.700 8.700 8.700 8.700 8.700 8.700 C 7nn PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE B83 OF B358 8.700 8.520 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.440 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE B84 OF B358 Program  : LAKET-PC Page: 9 Number 03.7.292-1.0 0 Date 03/06/2000 Created :Mon Oct 27 08:45:58 1997 Time 13:02:19.98 Case 0015: LaSalle UHS (Updated Worst 5/1/30-Day Temp.; Ti=99.SF @ 1500; power u SEASONAL

SUMMARY

FOR SUMMER ( 6/1900 - 8/1900 ) QUANTITY MONTHLY AVERAGES AVERAGE JUN JUL AUG VALUE LAKE SEEPAGE (CFS) .00 -. 18 -. 15 -. 17 TOTAL EVAP (CFS) .00 -1.64 -1.32 -1.60 NATURAL EVAP (CFS) .00 -1.00 -. 77 -.96 FORCED EVAP (CFS) .00 -. 65 -. 55 -. 63 PRECIPITATION (CFS) .00 .00 .00 .00 MAKEUP (CFS) .00 .00 .00 .00 BLOWDOWN (CFS) .00 .00 .00 .00 RUNOFF (CFS) .00 .00 .00 .00 DAM SPILL (CFS) .00 .00 .00 .00 LAKE ELEVATION (FEET) .00 689.29 688.56 689.19 DISSOLVED SOLIDS (PPM) .00 .00 .00 .00 NATURAL LAKE TEMP (F) .00 90.84 89.49 90.65 LAKE INLET TEMP (F) .00 101.54 98.70 101.14 LAKE OUTLET TEMP (F) .00 91.77 90.51 91.59 TEMPERATURE FREQUENCY OF OCCURENCES 1% 5% 50% NATURAL LAKE TEMP (F) 96.8 95.6 90.9 LAKE INLET TEMP (F) 127.0 109.3 101.0 LAKE OUTLET TEMP (F) 98.8 96.9 91.8 PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE B85 OF B358 Program : LAKET-PC Page 10 Number 03.7.292-1.0 0 Date : 03/06/2000 Created :Mon Oct 27 08:45:58 1997 Time 13:02:20.04 Case 0015: LaSalle UHS (Updated Worst 5/1/30-Day Temp.; Ti=99.5F @ 1500; power u CUMULATIVE SEASONAL

SUMMARY

SUMMER QUANTITY MONTHLY AVERAGES AVERAGE JUN JUL AUG VALUE LAKE SEEPAGE (CFS) .00 -. 18 -. 15 -. 17 TOTAL EVAP (CFS) .00 -1.64 -1.32 -1.60 NATURAL EVAP (CFS) .00 -1.00 -. 77 -. 96 FORCED EVAP (CFS) .00 -. 65 -. 55 -. 63 PRECIPITATION (CFS) .00 .00 .00 .00 MAKEUP (CFS) .00 .00 .00 .00 SLOWDOWN (CFS) .00 .00 .00 .00 RUNOFF (CFS) .00 .00 .00 .00 DAM SPILL (CFS) .00 .00 .00 .00 LAKE ELEVATION (FEET) .00 689.29 688.56 689.19 DISSOLVED SOLIDS (PPM) .00 .00 .00 .00 NATURAL LAKE TEMP (F) .00 90.84 89.49 90.65 LAKE INLET TEMP (F) .00 101.54 98.70 101.14 LAKE OUTLET TEMP (F) .00 91.77 90.51 91.59 TEMPERATURE FREQUENCY OF OCCURENCES 1% 5% 50%

NATURAL LAKE TEMP (F) 96.8 95.6 90.9 LAKE INLET TEMP (F) 127.0 109.3 101.0 LAKE OUTLET TEMP (F) 98.8 96.9 91.8 PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE B86 OF B358 Program LAKET-PC Page : 11 Number 03.7.292-1.0 0 Date : 03/06/2000 Created Mon Oct 27 08:45:58 1997 Time : 13:02:20.04 Case 0015: LaSalle UHS (Updated Worst 5/1/30-Day Temp.; Ti=99.SF @ 1500; power u TOTAL CUMULATIVE

SUMMARY

QUANTITY MAXIMUM MINIMUM AVERAGE TOTAL FLOW VALUE ( DATE ) VALUE ( DATE ) VALUE (ACRE-FEET) LAKE SEEPAGE (CFS) -. 15 8051900) -. 20 7011900) -. 17 -1.24086E+01 TOTAL EVAP (CFS) -. 28 8051900) -4.09 7051900) -1.60 -1.14028E+02 NATURAL EVAP (CFS) .00 7031900) -3.27 7051900) -. 96 -6.88232E+01 FORCED EVAP (CFS) -. 26 7311900) -1.58 7011900) -. 63 -4.52052E+01 PRECIPITATION (CFS) .00 7011900) .00 7011900) .00 0.OOOOOE+00 MAKEUP (CFS) .00 7011900) .00 7011900) .00 O.OOOOOE+00 BLOWDOWN (CFS) .00 7011900) .00 7011900) .00 O.OOOOOE+00 RUNOFF (CFS) .00 7011900) .00 7011900) .00 O.OOOOOE+00 DAN SPILL (CFS) .00 7011900) .00 7011900) .00 0.OOOOOE+00 LAKE ELEVATION (FEET) 689.99 7011900) 688.47 8051900) 689.19 4.92115E+04 DISSOLVED SOLIDS (PPM) .00 7011900) .00 7011900) .00 0.OOOOOE+00 NATURAL LAKE TEMP (F) 97.35 7041900) 82.24 7241900) 90.65 6.47283E+03 LAKE INLET TEMP (F) 135.20 7011900) 91.54 7241900) 101.14 7.22206E+03 LAKE OUTLET TEMP (F) 99.94 7011900) 83.05 7241900) 91.59 6.54024E+03 TEMPERATURE FREQUENCY OF OCCURENCES 1% 5% 50% NATURAL LAKE TEMP (F) 96.8 95.6 90.9 LAKE INLET TEMP (F) 127.0 109.3 101.0 LAKE OUTLET TEMP (F) 98.8 96.9 91.8 PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE B87 OF B358 Number 03.7.292-1.0 0 Date : 03/03/2000 Created Mon Oct 27 08:45:58 1997 Time : 16:32:04.07 Case 0018: LaSalle UHS (Updated Worst 36-Day Temp.; Ti=l00.OF 0 1800; power upra 1 2 070100 080500 1 1 3 1 20 4 1 0.2 5500. 0 5 690. 690. I. 6 83.83 464.9 75.45 418.4 82.15 381.9 73.94 343.7 80.55 300.5 72.50 270.5 78.96 220.8 71.06 198.7 77.33 142.6 69.60 128.4 29.70 71.7 26.73 65.6 7 1 0 8 100.0 95.5 999 FPLANT R/I 86.0 TPRISE S/I 35.26 28.79 16.68 16.28 15.32 14.97 14.53 14.29 13.88 13.45 13.30 13.30 13.30 13.24 12.73 12.73 12.57 12.43 12.24 12.02 12.02 12.02 12.02 12.01 11.49 11.49 11.49 11.49 11.49 11.49 11.49 11.49 11.09 11.07 PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE B88 OF B358 Program : LAKET-PC Page : 2 Number 03.7.292-1.0 0 Date : 03/03/2000 Created :Mon Oct 27 08:45:58 1997 Time : 16:32:04.13 11.07 11.07 11.07 10.87 10.86 10.86 10.50 10.SO 10.50 10.50 10.50 10.SO 10.S0 10.S0 10.50 10.50 10.50 10.50 10.S0 10.50 10.50 10.27 9.99 9.99 9.99 9.99 9.99 9.99 9.99 9.99 9.99 9.99 9.99 9.99 9.99 9.99 9.99 9.99 9.99 9.99 9.72 9.70 9.70 9.70 9.70 9.70 9.54 9.54 9.54 9.54 9.54 PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE B89 OF B358 Program LAKET-PC Page : 3 Number 03.7.292-1.0 0 Date 03/03/2000 Created Mon Oct 27 08:45:58 1997 Time 16:32:04.13 9.54 9.54 9.54 9.54 9.54 9.54 9.54 9.40 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE B90 OF B358 Program LAKET-PC Page : 4 Number 03.7.292-1.0 0 Date : 03/03/2000 Created Mon Oct 27 08:45:58 1997 Time : 16:32:04.13 9,19 9.19 9.15 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.72 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.52 8.49 PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE B91 OF B358 Program : LAKET-PC Page : 5 Number 03.7.292-1.0 0 Date 03/03/2000 Created :Mon Oct 27 08:45:58 1997 Time 16:32:04.13 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE B92 OF B358 Program : LAKET-PC Page : 6 Number 03.7.292-1.0 0 Date : 03/03/2000 Created :Mon Oct 27 08:45:58 1997 Time : 16:32:04.23 8.49 8.44 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 END PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE B93 OF B358 Program  : LAKET-PC Page: 7 Number  : 03.7.292-1.0 0 Date : 03/03/2000 Created :Mon Oct 27 08:45:58 1997 Time : 16:32:04.67 Case 0018: LaSalle UHS (Updated Worst 36-Day Temp.; Ti=100.OF @ 1800; power upra RUN 36 DAYS FROM 70100 TO 80500 PLOT FILE OPTION : 1 CYCLE FLAG: 1 WEATHER FILE OPTION: 1 ANEMOMETER HEIGHT 20.00 DENSITY: 62.40 SEEPAGE: .20 LAKE LENGTH: 5500.00 INITIAL LAKE ELEVATION = 690.00 DRAWDOWN CURVE ELEVATION TOTAL AREA TOTAL VOLUME EFF AREA EFF VOLUME 690.000 83.830 464.900 75.450 418.400 689.000 82.150 381.900 73.940 343.700 688.000 80.550 300.500 72.500 270.500 687.000 78.960 220.800 71.060 198.700 686.000 77.330 142.600 69.600 128.400 685.000 29.700 71.700 26.730 65.600 PLOT FILE FREQ 1 INCREMENTS AT 0 HOURS INITIAL FORCED/NATURAL LAKE TEMPS. = 100.00 95.50 WEATHER STATION ID 0. PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE B94 OF B358 Program LAKET-PC Page : 8 Number 03.7.292-1.0 0 Date : 03/03/2000 Created Mon Oct 27 08:45:58 1997 Time 16:32:04.67 Case 0018: LaSalle UHS (Updated Worst 36-Day Temp.; Ti=1OO.OF @ 1800; power upra FPLANT 70100 - 80500 R/I 86.000 TPRISE 70100 - 80500 S/I 35.260 28.790 16.680 16.280 15.320 14.970 14 . 530 14.290 13.880 13.450 13.300 13.300 13.300 13.240 12.730 12.730 12.570 12.430 12.240 12.020 12.020 12.020 12.020 12.010 11.490 11.490 11.490 11.490 11.490 11.490 11.490 11.490 11.090 11.070 11.070 11.070 11.070 10. 870 10.860 10.860 10.500 10 . 500 10.500 10.500 10.500 10.500 10.500 10.500 10.500 10.500 10.500 10.500 10.500 10.500 10.500 10.270 9.990 9.990 9.990 9.990 9.990 9.990 9.990 9.990 9.990 9.990 9.990 9.990 9.990 9.990 9.990 9.990 9.990 9.990 9.720 9.700 9.700 9.700 9.700 9.700 9.540 9.540 9.540 9.540 9.S40 9.540 9.540 9.540 9.540 9.540 9.540 9.540 9.400 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9,190 9.190 9.150 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8.720 8.700 8.700 8.700 8.700 8.700 8. 700 8.700 8.700 8.700 8.700 8.700 8.700 8.700 8.700 8.700 0 7nnf PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE B95 OF B358 o . Iuu 8 .700 8.520 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8 .490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.440 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE B96 OF B358 Program LAKET-PC Page : 9 Number 03.7.292-1.0 0 Date 03/03/2000 Created :Mon Oct 27 08:45:58 1997 Time : 16:32:04.95 Case 0018: LaSalle UHS (Updated Worst 36-Day Temp.; Ti=I00.OF @ 1800; power upra SEASONAL

SUMMARY

FOR SUMMER ( 6/1900 - 8/1900 ) QUANTITY MONTHLY AVERAGES AVERAGE JUN JUL AUG VALUE LAKE SEEPAGE (CFS) .00 -. 18 -. 16 -. 18 TOTAL EVAP (CFS) .00 -1.37 -1.34 -1.37 NATURAL EVAP (CFS) .00 -. 75 -. 79 -. 76 FORCED EVAP (CFS) .00 -. 62 -. 55 -. 61 PRECIPITATION (CFS) .00 .00 .00 .00 MAKEUP (CFS) .00 .00 .00 .00 BLOWDOWN (CFS) .00 .00 .00 .00 RUNOFF (CFS) .00 .00 .00 .00 DAM SPILL (CFS) .00 .00 .00 .00 LAKE ELEVATION (FEET) .00 689.37 688.76 689.29 DISSOLVED SOLIDS (PPM) .00 .00 .00 .00 NATURAL LAKE TEMP (F) .00 88.54 92.57 89.10 LAKE INLET TEMP (F) .00 99.46 101.72 99.77 LAKE OUTLET TEMP (F) .00 89.70 93.51 90.23 TEMPERATURE FREQUENCY OF OCCURENCES 1% 5% 50% NATURAL LAKE TEMP (F) 95.8 94.4 88.9 LAKE INLET TEMP (F) 126.0 105.5 99.3 LAKE OUTLET TEMP (F) 97.5 95.7 90.0 PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE B97 OF B358 Program LAKET-PC Page 10 Number 03.7.292-1.0 0 Date : 03/03/2000 Created :Mon Oct 27 08:45:58 1997 Time : 16:32:04.95 Case 0018: LaSalle UHS (Updated Worst 36-Day Temp.; Ti=I00.0F 0 1800; power upra CUMULATIVE SEASONAL

SUMMARY

SUMMER QUANTITY MONTHLY AVERAGES AVERAGE JUN JUL AUG VALUE LAKE SEEPAGE (CFS) .00 -. 18 -. 16 -. 18 TOTAL EVAP (CFS) .00 -1.37 -1.34 -1.37 NATURAL EVAP (CFS) .00 -. 75 -. 79 -. 76 FORCED EVAP (CFS) .00 -. 62 -. 55 -. 61 PRECIPITATION (CFS) .00 .00 .00 .00 MAKEUP (CPS) .00 .00 .00 .00 BLOWDOWN (CFS) .00 .00 .00 .00 RUNOFF (CFS) .00 .00 .00 .00 DAM SPILL (CPS) .00 .00 .00 .00 LAKE ELEVATION (FEET) .00 689,37 688.76 689.29 DISSOLVED SOLIDS (PPM) .00 .00 .00 .00 NATURAL LAKE TEMP (F) ,00 88.54 92.57 89.10 LAKE INLET TEMP (F) .00 99.46 101.72 99.77 LAKE OUTLET TEMP (F) ,00 89.70 93.51 90.23 TEMPERATURE FREQUENCY OF OCCURENCES 1% 5% 50%

NATURAL LAKE TEMP (F) 95.8 94.4 88.9 LAKE INLET TEMP (F) 126.0 105.5 99.3 LAKE OUTLET TEMP (F) 97.S 95.7 90.0 PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE B98 OF B358 Program LAKET-PC Page : 11 Number 03.7.292-1.0 0 Date 03/03/2000 Created Mon Oct 27 08:45:58 1997 Time : 16:32:04.95 Case 0018: LaSalle UHS (Updated Worst 36-Day Temp.; Ti=100.OF 0 1800; power upra TOTAL CUMULATIVE

SUMMARY

QUANTITY MAXIMUM MINIMUM AVERAGE TOTAL FLOW VALUE ( DATE ) VALUE ( DATE ) VALUE (ACRE-FEET) LAKE SEEPAGE (CFS) -. 16 8051900) -. 20 7011900) -. 18 -1.26427E+01 TOTAL EVAP (CFS) -. 25 8031900) -4.62 7021900) -1.37 -9.78120E+01 NATURAL EVAP (CFS) .00 7011900) -3.41 7021900) -. 76 -5.39938E+01 FORCED EVAP (CFS) -. 25 8031900) -1.38 7011900) -. 61 -4.38182E+01 PRECIPITATION (CFS) .00 7011900) .00 7011900) .00 0.OOOOOE+00 MAKEUP (CFS) .00 7011900) .00 7011900) .00 0.OOOOOE+00 BLOWDOWN (CFS) .00 7011900) .00 7011900) .00 0.OOOOOE+00 RUNOFF (CFS) .00 7011900) .00 7011900) .00 0.OOOOOE+00 DAM SPILL (CFS) .00 7011900) .00 7011900) .00 0.OOOOOE+00 LAKE ELEVATION (FEET) 689.99 7011900) 688.66 8051900) 689.29 4.92186E+04 DISSOLVED SOLIDS (PPM) .00 7011900) .00 7011900) .00 0.OOOOOE+00 NATURAL LAKE TEMP (F) 96.38 8031900) 82.53 7061900) 89.10 6.36231E+03 LAKE INLET TEMP (F) 133.93 7011900) 93.44 7251900) 99.77 7.12436E+03 LAKE OUTLET TEMP (F) 98.67 7011900) 83.86 7061900) 90.23 6.44259E+03 TEMPERATURE FREQUENCY OF OCCURENCES 1% 5% 50% NATURAL LAKE TEMP (F) 95.8 94.4 88.9 LAKE INLET TEMP (F) 126.0 105.5 99.3 LAKE OUTLET TEMP (F) 97.5 95.7 90.0 PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE B99 OF B358 Program : LAKET-PC Page : 1 Number  : 03.7.292-1.0 0 Date 03/03/2000 Created :Mon Oct 27 08:45:58 1997 Time : 16:39:49.73 Case 0021: LaSalle UHS (Updated Worst 36-Day Temp.; Ti=100.0F @ 2100; power upra 1 2 070100 080500 1 1 3 1 20 4 1 0.2 5500. 0 5 690. 690. 1. 6 83.83 464.9 75.45 418.4 82.15 381.9 73.94 343.7 80.55 300.5 72.50 270.5 78.96 220.8 71.06 198.7 77.33 142.6 69.60 128.4 29.70 71.7 26.73 65.6 7 1 0 8 100.0 95.5 999 FPLANT R/I 86.0 TPRISE S/I 35.26 28.79 16.68 16.28 15.32 14.97 14.53 14.29 13.88 13.45 13.30 13.30 13.30 13.24 12.73 12.73 12.57 12.43 12.24 12.02 12.02 12.02 12.02 12.01 11.49 11.49 11.49 11.49 11.49 11.49 11.49 11.49 11.09 11.07 PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE B100 OF B358 vrogram Ldu~s-w Date : 03/03/2000 Number 03.7.292-1.0 0 Time 16:39:49.78 Created Mon Oct 27 08:45:58 1997 11.07 11.07 11.07 10.87 10.86 10.86 10.50 10.50 10.50 10.50 10.50 10.50 10.50 10.50 10.50 10.50 10.50 10.50 10.50 10.50 10.50 10.27 9.99 9.99 9.99 9.99 9.99 9.99 9.99 9.99 9.99 9.99 9.99 9.99 9.99 9.99 9.99 9.99 9.99 9.99 9.72 9.70 9.70 9.70 9.70 9.70 9.54 9.54 9.54 9.54 9.54 PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE B101 OF B358 Program : LAKET-PC Page : 3 Number 03.7.292-1.0 0 Date : 03/03/2000 Created :Mon Oct 27 08:45:58 1997 Time : 16:39:49.78 9.54 9.54 9.54 9.54 9.54 9.54 9.54 9.40 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE B102 OF B358 Program LAKET-PC Page : 4 Number 03.7.292-1.0 0 Date : 03/03/2000 Created :Mon Oct 27 08:45:58 1997 Time : 16:39:49.78 9.19 9.19 9.15 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.72 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.52 8.49 PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE B103 OF B358 Page : 5 Program LAKET-PC 03.7.292-1.0 0 Date : 03/03/2000 Number Time : 16:39:49.78 Created Mon Oct 27 08:45:58 1997 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE B104 OF B358 Program LAKET-PC Page : 6 Number  : 03.7.292-1.0 0 Date 03/03/2000 1997 Time 16:39:49.89 Created :Mon Oct 27 08:45:58 8.49 8.44 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 END PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE B105 OF B358 Program LAKET-PC Page : 7 Number 03.7.292-1.0 0 Date : 03/03/2000 Created Mon Oct 27 08:45:58 1997 Time 16:39:50.00 Case 0021: LaSalle UHS (Updated Worst 36-Day Temp.; Ti=100.0F & 2100; power upra RUN 36 DAYS FROM 70100 TO 80500 PLOT FILE OPTION : 1 CYCLE FLAG: 1 WEATHER FILE OPTION: 1 ANEMOMETER HEIGHT 20.00 DENSITY: 62.40 SEEPAGE: .20 LAKE LENGTH: 5500.00 INITIAL LAKE ELEVATION = 690.00 DRAWDOWN CURVE ELEVATION TOTAL AREA TOTAL VOLUME EFF AREA EFF VOLUME 690.000 83.830 464.900 75.450 418.400 689.000 82.150 381.900 73.940 343.700 688.000 80.550 300.500 72.500 270.500 687.000 78.960 220.800 71.060 198.700 686.000 77.330 142.600 69.600 128.400 685.000 29.700 71.700 26.730 65.600 PLOT FILE FREQ 1 INCREMENTS AT 0 HOURS INITIAL FORCED/NATURAL LAKE TEMPS. = 100.00 95.50 WEATHER STATION ID 0. PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE B106 OF B358 Program LAKET-PC Page : 8 Number  : 03.7.292-1.0 0 Date 03/03/2000 Created Mon Oct 27 08:45:58 1997 Time : 16:39:50.28 Case 0021: LaSalle UHS (Updated Worst 36-Day Temp.; Ti=100.0F @ 2100; power upra FPLANT 70100 - 80500 R/I 86.000 TPRISE 70100 - 80500 s/I 35.260 28.790 16.680 16.280 15.320 14.970 14.530 14.290 13.880 13.450 13.300 13.300 13.300 13.240 12.730 12.730 12.570 12.430 12.240 12.020 12.020 12.020 12.020 12.010 11.490 11.490 11.490 11.490 11.490 11.490 11.490 11.490 11.090 11.070 11.070 11.070 11.070 10.870 10.860 10.860 10.500 10.500 10.500 10.500 10.500 10.500 10.500 10.500 10.500 10.500 10.500 10.500 10.500 10.500 10.500 10.270 9.990 9.990 9.990 9.990 9.990 9.990 9.990 9.990 9.990 9.990 9.990 9.990 9.990 9.990 9.990 9.990 9.990 9.990 9.720 9.700 9.700 9.700 9.700 9.700 9.540 9.540 9.540 9.540 9.540 9.540 9.540 9.540 9.540 9.540 9.540 9.540 9.400 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.150 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8.720 8.700 8.700 8.700 8.700 8.700 8.700 8.700 8.700 8.700 8.700 8.700 8.700 8.700 8.700 8.700 PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE B107 OF B358 8.700 8.700 8.700 8.700 8.700 8.520 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.440 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE B108 OF B358 Program : LAKET-PC Page: 9 Number  : 03.7.292-1.0 0 Date : 03/03/2000 Created Mon Oct 27 08:45:58 1997 Time 16:39:50.55 Case 0021: LaSalle UHS (Updated Worst 36-Day Temp.; Ti=100.OF 0 2100; power upra SEASONAL

SUMMARY

FOR SUMMER ( 6/1900 - 8/1900 ) QUANTITY MONTHLY AVERAGES AVERAGE JUN JUL AUG VALUE LAKE SEEPAGE (CFS) .00 -. 18 -. 16 -. 18 TOTAL EVAP (CFS) .00 -1.38 -1.37 -1.37 NATURAL EVAP (CFS) .00 -. 75 -. 82 -. 76 FORCED EVAP (CFS) .00 -. 62 -. 55 - .61 PRECIPITATION (CFS) .00 .00 .00 .00 MAKEUP (CFS) .00 .00 .00 .00 BLOWDOWN (CFS) .00 .00 .00 .00 RUNOFF (CFS) .00 .00 .00 .00 DAM SPILL (CFS) .00 .00 .00 .00 LAKE ELEVATION (FEET) .00 689.37 688.76 689.29 DISSOLVED SOLIDS (PPM) .00 .00 .00 00 NATURAL LAKE TEMP (F) .00 88.57 92.54 89.12 LAKE INLET TEMP (F) .00 99.50 101.66 99.80 LAKE OUTLET TEMP (F) .00 89.74 93.46 90.25 TEMPERATURE FREQUENCY OF OCCURENCES 1% 5% 50% NATURAL LAKE TEMP (F) 96.0 94.4 88.9 LAKE INLET TEMP (F) 126.0 105.3 99.3 LAKE OUTLET TEMP (F) 97.7 95.7 90.1 PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE B109 OF B358 Program LAKET-PC Page : 10 Number 03.7.292-1.0 0 Date : 03/03/2000 Created Mon Oct 27 08:45:58 1997 Time : 16:39:50.55 Case 0021: LaSalle UHS (Updated Worst 36-Day Temp.; Ti=100.OF a 2100; power upra CUMULATIVE SEASONAL

SUMMARY

SUMMER QUANTITY MONTHLY AVERAGES AVERAGE JUN JUL AUG VALUE LAKE SEEPAGE (CFS) .00 -. 18 -. 16 -. 18 TOTAL EVAP (CFS) .00 -1.38 -1.37 -1.37 NATURAL EVAP (CFS) .00 -. 75 -. 82 -. 76 FORCED EVAP (CFS) .00 -. 62 -. 55 -. 61 PRECIPITATION (CFS) .00 .00 .00 .00 MAKEUP (CFS) .00 .00 .00 .00 BLOWDOWN (CFS) .00 .00 .00 .00 RUNOFF (CFS) .00 .00 .00 .00 DAM SPILL (CFS) .00 .00 .00 .00 LAKE ELEVATION (FEET) .00 689.37 688.76 689.29 DISSOLVED SOLIDS (PPM) .00 .00 .00 .00 NATURAL LAKE TEMP (F) .00 88.57 92.54 89.12 LAKE INLET TEMP (F) .00 99.50 101.66 99.80 LAKE OUTLET TEMP (F) .00 89.74 93.46 90.25 TEMPERATURE FREQUENCY OF OCCURENCES 1% 5% 50%

NATURAL LAKE TEMP (F) 96.0 94.4 88.9 LAKE INLET TEMP (F) 126.0 105.3 99.3 LAKE OUTLET TEMP (F) 97.7 95.7 90.1 PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE B110 OF B358 Program LAKET-PC Page  : 11 Number  : 03.7.292-1.0 0 Date 03/03/2000 Created :Mon Oct 27 08:45:58 1997 Time 16:39:50.55 Case 0021: LaSalle UHS (Updated Worst 36-Day Temp.; Ti=100.OF @ 2100; power upra TOTAL CUMULATIVE

SUMMARY

QUANTITY MAXIMUM MINIMUM AVERAGE TOTAL FLOW VALUE ( DATE VALUE ( DATE ) VALUE (ACRE-FEET) LAKE SEEPAGE (CFS) -. 16 8051900) -. 20 7011900) -. 18 -1.26421E+01 TOTAL EVAP (CFS) -. 25 8031900) -4.66 7021900) -1.37 -9. 80903E+01 NATURAL EVAP (CFS) .00 7011900) -3.45 7021900) -. 76 -5 .42381E+01 FORCED EVAP (CFS) -. 25 8031900) -1.76 7011900) -. 61 -4 .38522E+01 PRECIPITATION (CFS) .00 7011900) .00 7011900) .00 0. 00000E+00 MAKEUP (CFS) .00 7011900) .00 7011900) .00 0.00000E+00 BLOWDOWN (CFS) .00 7011900) .00 7011900) .00 0 OOOOOE+00 RUNOFF (CFS) .00 7011900) .00 7011900) .00 0. 00000E+00 DAM SPILL (CFS) .00 7011900) .00 7011900) .00 0. 00000E+00 LAKE ELEVATION (FEET) 689.99 7011900) 688.66 8051900) 689.29 4. 92186E+04 DISSOLVED SOLIDS (PPM) .00 7011900) .00 7011900) .00 0 OOOOOE+00 NATURAL LAKE TEMP (F) 96.38 8031900) 82.59 7061900) 89.12 6 .36379E+03 LAKE INLET TEMP (F) 133.75 7011900) 93.38 7251900) 99.80 7. 12633E+03 LAKE OUTLET TEMP (F) 98.49 7011900) 84.08 7061900) 90.25 6.44461E+03 TEMPERATURE FREQUENCY OF OCCURENCES 1% 5% 50% NATURAL LAKE TEMP (F) 96.0 94.4 88.9 LAKE INLET TEMP (F) 126.0 105.3 99.3 LAKE OUTLET TEMP (F) 97.7 95.7 90.1 PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE B111 OF B358 Program LAKET-PC Page : 1 Number  : 03.7.292-1.0 0 Date 03/03/2000 Created :Mon Oct 27 08:45:58 1997 Time : 14:20:11.83 Case 0600: LaSalle UHS (Updated Worst 36-Day Temp; Ti=100.0F @0000; power uprat 1 2 070100 080500 1 1 3 1 20 4 1 0.2 5500. 0 5 690. 690. 1. 6 82.99 423.5 74.69 381.2 81.35 341.4 73.21 307.2 79.75 260.8 71.78 234.7 78.15 181.9 70.34 163.7 29.70 102.2 26.73 92.0 22.22 60.0 20.00 54.0 7 1 0 8 100.0 95.5 999 FPLANT R/I 86.0 TPRISE S/I 35.26 28.79 16.68 16.28 15.32 14 . 97 14.53 14.29 13.88 13.45 13.30 13.30 13.30 13.24 12.73 12.73 12.57 12.43 12.24 12.02 12.02 12.02 12.02 12 .01 11.49 11.49 11.49 11.49 11.49 11.49 11.49 11.49 11.09 PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE B112 OF B358 Program LAKET-PC Page : 2 Number 03.7.292-1.0 0 Date 03/03/2000 Created Mon Oct 27 08:45:58 1997 Time : 14:20:11.83 11.07 11.07 11.07 11.07 10.87 10.86 10.86 10.50 10.50 10 .50 10 .50 10 .50 10 50 10.50 10.50 10 .50 10.50 10.50 10.50 10.50 10.50 10.50 10.27 9.99 9.99 9.99 9.99 9.99 9.99 9.99 9.99 9.99 9.99 9.99 9.99 9.99 9.99 9.99 9.99 9.99 9.99 9.72 9.70 9.70 9.70 9.70 9.70 9.54 9.54 9.54 9.54 PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE B113 OF B358 Program : LAKET-PC Page : 3 Number  : 03.7.292-1.0 0 Date : 03/03/2000 Created Mon Oct 27 08:45:58 1997 Time 14:20:11.89 9.54 9.54 9.54 9.54 9.54 9.54 9.54 9.54 9.40 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE B1 14 OF B358

LAKET-PC Page  : 4 Program Date 03/03/2000 Number 03.7.292-1.0 0 Time 14:20:11.89 Created :Mon Oct 27 08:45:58 1997 9.19 9.19 9.19 9.15 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8 .85 8.85 8.85 8.85 8.85 8.72 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 R.S2 PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE B115 OF B358 Program : LAKET-PC Page 5 Number  : 03.7.292-1.0 0 Date 03/03/2000 Created :Mon Oct 27 08:45:58 1997 Time 14:20:11.89 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE B116 OF B358 Page : 6 Program : LAKET-PC Date : 03/03/2000 Number  : 03.7.292-1.0 0 Time : 14:20:12.00 created : Mon Oct 27 08:45:58 1997 8.49 8.49 8.44 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 a 11 PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE B117 OF B358 Program LAKET-PC Page  : 7 Number 03.7.292-1.0 0 Date 03/03/2000 Created Mon Oct 27 08:45:58 1997 Time 14:20:12.05 END PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE B118 OF B358 Program LAKET-PC Page: 8 Number  : 03.7.292-1.0 0 Date : 03/03/2000 Created : Mon Oct 27 08:45:58 1997 Time : 14:20:12.44 Case 0600: LaSalle UHS (Updated Worst 36-Day Temp; Ti=l00.OF @0000; power uprat RUN 36 DAYS FROM 70100 TO 80500 PLOT FILE OPTION : 1 CYCLE FLAG: 1 WEATHER FILE OPTION: 1 ANEMOMETER HEIGHT 20.00 DENSITY: 62.40 SEEPAGE: .20 LAKE LENGTH: 5500.00 INITIAL LAKE ELEVATION = 690.00 DRAWDOWN CURVE ELEVATION TOTAL AREA TOTAL VOLUME EFF AREA EFF VOLUME 690.000 82.990 423.500 74.690 381.200 689.000 81.350 341.400 73.210 307.200 688.000 79.750 260.800 71.780 234.700 687.000 78.150 181.900 70,340 163.700 686.000 29.700 102.200 26.730 92.000 685.000 22.220 60.000 20.000 54.000 PLOT FILE FREQ 1 INCREMENTS AT 0 HOURS INITIAL FORCED/NATURAL LAKE TEMPS. = 100.00 95.50 WEATHER STATION ID 0. PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE B119 OF B358 Program LAKET-PC Page : 9 Number 03.7.292-1.0 0 Date 03/03/2000 Created :Mon Oct 27 08:45:58 1997 Time 14:20:12.44 Case 0600: LaSalle UHS (Updated Worst 36-Day Temp; Ti=100.OF @0000; power uprat FPLANT 70100 - 80500 R/I 86.000 TPRISE 70100 - 80500 S/I 35.260 28.790 16.680 16.280 15.320 14.970 14.530 14.290 13.880 13.4S0 13.300 13.300 13.300 13.240 12.730 12.730 12.570 12.430 12.240 12.020 12.020 12.020 12.020 12.010 11.490 11.490 11.490 11.490 11.490 11.490 11.490 11.490 11.090 11.070 11.070 11.070 11.070 10.870 10.860 10.860 10.500 10.500 10.500 10.500 10.500 10.500 10.500 10.500 10.500 10.500 10.S00 10.500 10.500 10.500 10.500 10.270 9.990 9.990 9.990 9.990 9.990 9.990 9.990 9.990 9.990 9.990 9.990 9.990 9.990 9.990 9.990 9.990 9.990 9.990 9.720 9.700 9.700 9.700 9.700 9.700 9.540 9.540 9.540 9.540 9.540 9.540 9.540 9.540 9.540 9.540 9.540 9.S40 9.400 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.150 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8-850 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8.720 8.700 8.700 8.700 8.700 8.700 8.700 8.700 8.700 8.700 8.700 8.700 8.700 8.700 8.700 8.700 PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE B120 OF B358 8.700 8.700 8.700 8.700 8.700 8.520 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8 .490 8.490 8.490 8.490 8 .490 8.490 8.490 8.490 8.490 8.440 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE B121 OF B358 Program LAKET-PC Page : 10 Number 03.7.292-1.0 0 Date 03/03/2000 Created :Mon Oct 27 08:45:58 1997 Time 14:20:12.60 Case 0600: LaSalle UHS (Updated Worst 36-Day Temp; Ti=100.OF 00000; power uprat SEASONAL

SUMMARY

FOR SUMMER ( 6/1900 - 8/1900 ) QUANTITY MONTHLY AVERAGES AVERAGE JUN JUL AUG VALUE LAKE SEEPAGE (CFS) .00 -. 18 -. 16 -. 17 TOTAL EVAP (CFS) .00 -1.38 -1.25 -1.36 NATURAL EVAP (CFS) .00 -. 76 -. 70 -. 75 FORCED EVAP (CFS) .00 -. 63 -. 55 -. 62 PRECIPITATION (CFS) .00 .00 .00 .00 MAKEUP (CFS) .00 .00 .00 .00 BLOWDOWN (CFS) .00 .00 DO .00 RUNOFF (CFS) .00 .00 .00 .00 DAM SPILL (CFS) .00 .00 .00 .00 LAKE ELEVATION (FEET) .00 689.36 688.75 689.28 DISSOLVED SOLIDS (PPM) .00 .00 .00 .00 NATURAL LAKE TEMP (F) .00 88.75 92.74 89.31 LAKE INLET TEMP (F) .00 99.59 101.78 99.89 LAKE OUTLET TEMP (F) .00 89.82 93.59 90.35 TEMPERATURE FREQUENCY OF OCCURENCES 1% 5% 50% NATURAL LAKE TEMP (F) 97.5 95.5 89.0 LAKE INLET TEMP (F) 125.0 109.0 99.3 LAKE OUTLET TEMP (F) 98.8 96.7 90.1 PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE B122 OF B358 Program : LAKET-PC Page  : 11 Number  : 03.7.292-1.0 0 Date 03/03/2000 Created :Mon Oct 27 08:45:58 1997 Time  : 14:20:12.60 Case 0600: LaSalle UHS (Updated Worst 36-Day Temp; Ti=100.OF @0000; power uprat CUMULATIVE SEASONAL

SUMMARY

SUMMER QUANTITY MONTHLY AVERAGES AVERAGE JUN JUL AUG VALUE LAKE SEEPAGE (CPS) .00 -. 18 -. 16 -. 17 TOTAL EVAP (CFS) .00 -1.38 -1.25 -1.36 NATURAL EVAP (CFS) .00 -. 76 -. 70 -. 75 FORCED EVAP (CFS) .00 -. 63 -. 55 -. 62 PRECIPITATION (CFS) .00 .00 .00 .00 MAKEUP (CPS) .00 .00 .00 .00 BLOWDOWN (CFS) .00 .00 .00 .00 RUNOFF (CFS) .00 .00 .00 .00 DAM SPILL (CFS) .00 .00 .00 .00 LAKE ELEVATION (FEET) .00 689.36 688.75 689.28 DISSOLVED SOLIDS (PPM) .00 .00 .00 .00 NATURAL LAKE TEMP (F) .00 88.75 92.74 89.31 LAKE INLET TEMP (F) .00 99.59 101.78 99.89 LAKE OUTLET TEMP (F) .00 89.82 93.59 90.35 TEMPERATURE FREQUENCY OF OCCURENCES 1% 5% 50%

NATURAL LAKE TEMP (F) 97.5 95.5 89.0 LAKE INLET TEMP (F) 125.0 109.0 99.3 LAKE OUTLET TEMP (F) 98.8 96.7 90.1 PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE B123 OF B358 Program LAKET-PC Page : 12 Number  : 03.7.292-1.0 0 Date : 03/03/2000 Created :Mon Oct 27 08:45:58 1997 Time : 14:20:12.60 Case 0600: LaSalle UHS (Updated Worst 36-Day Temp; Ti=100.OF @0000; power uprat TOTAL CUMULATIVE

SUMMARY

QUANTITY MAXIMUM MINIMUM AVERAGE TOTAL FLOW VALUE ( DATE ) VALUE ( DATE ) VALUE (ACRE-FEET) LAKE SEEPAGE (CFS) -. 15 8051900) -. 20 7011900) -. 17 -1.24523E+01 TOTAL EVAP (CFS) -. 22 8041900) -4.45 7031900) -1.36 -9.73128E+01 NATURAL EVAP (CFS) .00 7011900) -3.49 7031900) -. 75 -5.33378E+01 FORCED EVAP (CFS) -. 22 8041900) -1.65 7021900) -. 62 -4.39751E+01 PRECIPITATION (CFS) .00 7011900) .00 7011900) .00 0.OOOOOE+00 MAKEUP (CFS) .00 7011900) .00 7011900) .00 0.OOOOOE+00 BLOWDOWN (CFS) .00 7011900) .00 7011900) .00 0.OOOOOE+00 RUNOFF (CFS) .00 7011900) .00 7011900) .00 0.OOOOOE+00 DAM SPILL (CFS) .00 7011900) .00 7011900) .00 0.OOOOOE+00 LAKE ELEVATION (FEET) 689.99 7011900) 688.66 8051900) 689.28 4.92178E+04 DISSOLVED SOLIDS (PPM) .00 7011900) .00 7011900) .00 0.OOOOOE+00 NATURAL LAKE TEMP (F) 97.81 7011900) 82.19 7071900) 89.31 6.37696E+03 LAKE INLET TEMP (F) 133.63 7011900) 92.93 7261900) 99.89 7.13288E+03 LAKE OUTLET TEMP (F) 99.40 7011900) 83.36 7071900) 90.35 6.45117E+03 TEMPERATURE FREQUENCY OF OCCURENCES 1% 5% 50% NATURAL LAKE TEMP (F) 97.5 95.5 89.0 LAKE INLET TEMP (F) 125.0 109.0 99.3 LAKE OUTLET TEMP (F) 98.8 96.7 90.1 PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE B124 OF B358 Program  : LAKET-PC Page : 1 Number  : 03.7.292-1.0 0 Date : 03/03/2000 Created  : Mon Oct 27 08:45:58 1997 Time 14:36:07.37 Case 0603: LaSalle UHS (Updated Worst 36-Day Temp; Ti=99.2F @0300; power uprate 1 2 070100 080500 1 1 3 1 20 4 1 0.2 5500. 0 5 690. 690. 1. 6 82.99 423.5 74.69 381.2 81.35 341.4 73.21 307.2 79.75 260.8 71.78 234.7 78.15 181.9 70.34 163.7 29.70 102.2 26.73 92.0 22.22 60.0 20.00 54.0 7 1 0 8 99.2 94.7 999 PPLANT R/I 86.0 TPRISE s/I 35.26 28.79 16.68 16.28 15.32 14.97 14 .53 14.29 13.88 13.45 13.30 13.30 13.30 13.24 12.73 12.73 12.57 12.43 12.24 12.02 12.02 12.02 12.02 12 .01 11.49 11.49 11.49 11.49 11.49 11.49 11.49 11.49 11.09 PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE B125 OF B358 Program : LAKET-PC Page ; 2 Number 03.7.292-1.0 0 Date 03/03/2000 Created Mon Oct 27 08:45:58 1997 Time 14:36:07.43 11.07 11.07 11.07 11.07 10.87 10.86 10.86 10.50 10.50 10.50 10.50 10.50 10.50 10.50 10.50 10.50 10.50 10 .50 10 .50 10.50 10 .50 10.50 10.27 9.99 9.99 9.99 9.99 9.99 9.99 9.99 9.99 9.99 9.99 9.99 9.99 9.99 9.99 9.99 9.99 9.99 9.99 9.72 9.70 9.70 9.70 9.70 9.70 9.54 9.54 9.54 9.54 PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE B126 OF B358 Program : LAKET-PC Page  : 3 Number 03.7.292-1.0 0 Date 03/03/2000 Time  : 14:36:07.43 Created :Mon Oct 27 08:45:58 1997 9.54 9.54 9.54 9.54 9.54 9.54 9.54 9.54 9.40 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE B127 OF B358 LAKET-PC Page : 4 Program Date : 03/03/2000 Number 03.7.292-1.0 0 Mon Oct 27 08:45:58 1997 Time : 14:36:07.43 Created 9.19 9.19 9.19 9.15 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.72 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 A -- 2 PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE B128 OF B358 Program LAKET-PC Page  : 5 Number 03.7.292-1.0 0 Date 03/03/2000 Created Mon Oct 27 08:45:58 1997 Time 14:36:07.43 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE B129 OF B358 Program : LAKET-PC Page : 6 Number 03.7.292-1.0 0 Date : 03/03/2000 Created :Mon Oct 27 08:45:S8 1997 Time 14:36:07.48 8.49 8.49 8.44 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE B130 OF B358 Program LAKET-PC Page  : 7 Date  : 03/03/2000 Number  : 03.7.292-1.0 0 Time 14:36:07.54 Created :Mon Oct 27 08:45:58 1997 PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE B131 OF B358 Program  : LAKET-PC Page  : 8 Number  : 03.7.292-1.0 0 Date  : 03/03/2000 Created :Mon Oct 27 08:45:58 1997 Time  : 14:36:07.81 Case 0603: LaSalle UHS (Updated Worst 36-Day Temp; Ti=.99.2F @0300; power uprate RUN 36 DAYS FROM 70100 TO 80500 PLOT FILE OPTION : 1 CYCLE FLAG: 1 WEATHER FILE OPTION: 1 ANEMOMETER HEIGHT 20.00 DENSITY: 62.40 SEEPAGE: .20 LAKE LENGTH: 5500.00 INITIAL LAKE ELEVATION = 690.00 DRAWDOWN CURVE ELEVATION TOTAL AREA TOTAL VOLUME EFI AREA EFF VOLUME 690.000 82.990 423.500 74.690 381.200 689.000 81.350 341.400 73.210 307.200 688.000 79.750 260.800 771.780 234.700 687.000 78.150 181.900 70.340 163.700 686.000 29.700 102.200 2.6.730 92.000 685.000 22.220 60.000 2.0,000 54.000 PLOT FILE FREQ 1 INCREMENTS AT 0 HOURS INITIAL FORCED/NATURAL LAKE TEMPS. = 99.20 94. 70 WEATHER STATION ID 0. PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE B132 OF B358 Program : LAKET-PC Page : 9 Number  : 03.7.292-1.0 0 Date : 03/03/2000 Created Mon Oct 27 08:45:58 1997 Time : 14:36:07.81 Case 0603: LaSalle UHS (Updated Worst 36-Day Temp; Ti=99.2F @0300; power uprate FPLANT 70100 - 80500 R/I 86.000 TPRISE 70100 - 80500 s/I 35.260 28.790 16.680 16.280 15.320 14.970 14.530 14.290 13.880 13.450 13.300 13.300 13.300 13.240 12.730 12.730 12.570 12.430 12.240 12.020 12.020 12.020 12.020 12.010 11.490 11.490 11.490 11.490 11.490 11.490 11.490 11.490 11.090 11.070 11.070 11.070 11.070 10.870 10.860 10.860 10.500 10.500 10.500 10.500 10.500 10.500 10.500 10.500 10.500 10.500 10.500 10.500 10.500 10.500 10.500 10.270 9.990 9.990 9.990 9.990 9.990 9.990 9.990 9.990 9.990 9.990 9.990 9.990 9.990 9.990 9.990 9.990 9.990 9.990 9.720 9.700 9.700 9.700 9.700 9.700 9.540 9.540 9.540 9.540 9.540 9.540 9.540 9.540 9.540 9.540 9.540 9. 540 9.400 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9. 190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.150 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8.720 8.700 8.700 8.700 8.700 8.700 8.700 8.700 8.700 8.700 8.700 8.700 8.700 8.700 8.700 8.700 PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE B133 OF B358 8.700 8.700 8.700 8.700 8.700 8.520 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8,490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8,440 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE B134 OF B358 Program : LAKET-PC Page  : 10 Number  : 03.7.292-1.0 0 Date 03/03/2000 Created Mon Oct 27 08:45:58 1997 Time  : 14:36:07.98 Case 0603: LaSalle UHS (Updated Worst 36-Day Temp; Ti=99.2F @0300; power uprate SEASONAL

SUMMARY

FOR SUMMER ( 6/1900 - 8/1900 ) QUANTITY MONTHLY AVERAGES AVERAGE JUN JUL AUG VALUE LAKE SEEPAGE (CFS) .00 -. 18 -. 16 -. 17 TOTAL EVAP (CFS) .00 -1.38 -1.27 -1.36 NATURAL EVAP (CFS) .00 -. 75 -. 72 - 75 FORCED EVAP (CFS) .00 -. 63 -. 56 -. 62 PRECIPITATION (CFS) .00 .00 .00 .00 MAKEUP (CFS) .00 .00 .00 .00 BLOWDOWN (CFS) .00 .00 .00 .00 RUNOFF (CFS) .00 .00 .00 .00 DAM SPILL (CFS) .00 .00 .00 .00 LAKE ELEVATION (FEET) .00 689.36 688.75 689.28 DISSOLVED SOLIDS (PPM) .00 .00 .00 .00 NATURAL LAKE TEMP (F) .00 88.73 92.77 89.29 LAKE INLET TEMP (F) .00 99.58 101.81 99.89 LAKE OUTLET TEMP (F) .00 89.82 93.62 90.35 TEMPERATURE FREQUENCY OF OCCURENCES 1% 5% 50% NATURAL LAKE TEMP (F) 97.3 95.5 89.0 LAKE INLET TEMP (F) 125.0 109.0 99.3 LAKE OUTLET TEMP (F) 99.0 96.7 90.1 PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE B135 OF B358 Program  : LAKET-PC Page 11 Number  : 03.7.292-1.0 0 Date  : 03/03/2000 Created  : Mon Oct 27 08:45:58 1997 Time 14:36:07.98 Case 0603: LaSalle UHS (Updated Worst 36-Day Temp; Ti=99.2F @0300; power uprate CUMULATIVE SEASONAL

SUMMARY

SUMMER QUANTITY MONTHLY AVERAGES AVERAGE JUN JUL AUG VALUE LAKE SEEPAGE (CFS) .00 -. 18 -. 16 -. 17 TOTAL EVAP (CFS) .00 -1.38 -1.27 -1.36 NATURAL EVAP (CFS) .00 -. 75 -. 72 -. 75 FORCED EVAP (CFS) .00 -. 63 -. 56 -. 62 PRECIPITATION (CFS) .00 .00 .00 .00 MAKEUP (CFS) .00 .00 .00 .00 BLOWDOWN (CFS) .00 .00 .00 .00 RUNOFF (CFS) .00 .00 .00 .00 DAM SPILL (CFS) .00 .00 .00 .00 LAKE ELEVATION (FEET) .00 689.36 688.75 689.28 DISSOLVED SOLIDS (PPM) .00 .00 .00 .00 NATURAL LAKE TEMP (F) .00 88.73 92.77 89.29 LAKE INLET TEMP (F) .00 99.58 101.81 99.89 LAKE OUTLET TEMP (F) .00 89.82 93.62 90.35 TEMPERATURE FREQUENCY OF OCCURENCES 1% 5% 50%

NATURAL LAKE TEMP (F) 97.3 95.5 89.0 LAKE INLET TEMP (F) 125.0 109.0 99.3 LAKE OUTLET TEMP (F) 99.0 96.7 90.1 PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE B136 OF B358 Program LAKET-PC Page 12 Number 03.7.292-1.0 0 Date : 03/03/2000 Created  : Mon Oct 27 08:45:58 1997 Time 14:36:07.98 Case 0603: LaSalle UHS (Updated Worst 36-Day Temp; Ti=99.2F @0300; power uprate TOTAL CUMULATIVE

SUMMARY

QUANTITY MAXIMUM MINIMUM AVERAGE TOTAL FLOW VALUE ( DATE ) VALUE ( DATE ) VALUE (ACRE-FEET) LAKE SEEPAGE (CFS) -. 15 8051900) -. 20 7011900) -. 17 -1.24511E+01 TOTAL EVAP (CFS) -. 22 8041900) -4.47 7031900) -1.36 -9.73689E+01 NATURAL EVAP (CFS) .00 7011900) -3.48 7031900) -. 75 -5.33954E+01 FORCED EVAP (CFS) -. 22 8041900) -1.67 7021900) -. 62 -4.39735E+01 PRECIPITATION (CFS) .00 7011900) .00 7011900) .00 0.OOOOOE+00 MAKEUP (CFS) .00 7011900) .00 7011900) .00 0.OOOOOE+00 BLOWDOWN (CFS) .00 7011900) .00 T011900) .00 0.OOOOOE+00 RUNOFF (CFS) .00 7011900) .00 7011900) .00 0.000O0E+00 DAM SPILL (CFS) .00 7011900) .00 7011900) .00 0.OOOOOE+00 LAKE ELEVATION (FEET) 690.00 7011900) 688.66 8051900) 689.28 4.92178E+04 DISSOLVED SOLIDS (PPM) .00 7011900) .00 7011900) .00 0.OOOOOE+00 NATURAL LAKE TEMP (F) 97.76 7011900) 82.20 7071900) 89.29 6.37599E+03 LAKE INLET TEMP (F) 133.12 7011900) 92.94 7261900) 99.89 7.13237E+03 LAKE OUTLET TEMP (F) 99.96 7011900) 83.73 7071900) 90.35 6.45128E+03 TEMPERATURE FREQUENCY OF OCCURENCES 1i 5% 50% NATURAL LAKE TEMP (F) 97.3 95.5 89.0 LAKE INLET TEMP (F) 125.0 109.0 99.3 LAKE OUTLET TEMP (F) 99.0 96.7 90.1 PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE B137 OF B358 Program : LAKET-PC Page  : 1 Number  : 03.7.292-1.0 0 Date  : 03/03/2000 Created :Mon Oct 27 08:45:58 1997 Time  : 14:59:24.73 Case 0606: LaSalle UHS (Updated Worst 36-Day Temp; Ti=97.9F @0600; power uprate 1 2 070100 080500 1 1 3 1 20 4 1 0.2 5500. 0 5 690. 690. 1. 6 82.99 423.5 74 .69 381.2 81.35 341.4 73.21 307.2 79.75 260.8 71.78 234.7 78.15 181.9 70.34 163.7 29.70 102.2 26.73 92.0 22.22 60.0 20.00 54.0 7 1 0 8 97.9 93.4 999 FPLANT R/I 86.0 TPRISE S/I 35.26 28.79 16.68 16.28 15.32 14.97 14.53 14.29 13.88 13.45 13.30 13.30 13.30 13.24 12.73 12.73 12.57 12.43 12.24 12.02 12.02 12.02 12.02 12.01 11.49 11.49 11.49 11.49 11.49 11.49 11.49 11.49 11.09 PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE B138 OF B358 Program : LAKET-PC Page : 2 Number 03.7.292-1.0 0 Date 03/03/2000 Created :Mon Oct 27 08:45:58 1997 Time 14:59:24.73 11.07 11.07 11.07 11.07 10.87 10.86 10.86 10.50 10.50 10.50 10.50 10.50 10.50 10.50 10.50 10.50 10.50 10.50 10.50 10.50 10.50 10.50 10.27 9.99 9.99 9.99 9.99 9.99 9.99 9.99 9.99 9.99 9.99 9.99 9.99 9.99 9.99 9.99 9.99 9.99 9.99 9.72 9.70 9.70 9.70 9.70 9.70 9.54 9.54 9.54 9.54 PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE B139 OF B358 Program : LAKET-PC Page : 3 Date : 03/03/2000 Number  : 03.7.292-1.0 0 Time i 14:59:24.73 Created :Mon Oct 27 08:45:58 1997 9.54 9 .54 9 .54 9 .54

9. 54 9.54 9 .54 9.54 9.40 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE B140 OF B358 Program LAKET-PC Page : 4 Number  : 03.7.292-1.0 0 Date : 03/03/2000 Created Mon Oct 27 08:45:58 1997 Time 14:59:24.73 9.19 9.19 9.19 9.15 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.72 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.52 PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE B141 OF B358 Program : LAKET-PC Page : 5 Number  : 03.7.292-1.0 0 Date : 03/03/2000 Created Mon Oct 27 08:45:58 1997 Time : 14:59:24.79 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 PROJECT NO. 11333-297

ATTACHMENT B REVISION NO. 8 PAGE B142 OF B358 CALCULATION NO. L-002457 Page  : 6 Program : LAKET-PC Date  : 03/03/2000 Number  : 03.7.292-1.0 0 Time  : 14:59:24.84 Created Mon Oct 27 08:45:58 1997 8.49 8.49 8.44 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 PROJECT NO. 11333-297

ATTACHMENT B REVISION NO. 8 PAGE B143 OF B358 CALCULATION NO. L-002457 Page : 7 Program LAKET-PC Date 03/03/2000 Number  : 03.7.292-1.0 0 Time : 14:59:24.95 Created : Mon Oct 27 08:45:58 1997 END PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE B144 OF B358 Program LAKET-PC Page: 8 Number 03.7.292-1.0 0 Date : 03/03/2000 Created Mon Oct 27 08:45:58 1997 Time : 14:59:25.23 Case 0606: LaSalle UHS (Updated Worst 36-Day Temp; Ti=97.9F @0600; power uprate RUN 36 DAYS FROM 70100 TO 80500 PLOT FILE OPTION : 1 CYCLE FLAG: 1 WEATHER FILE OPTION: 1 ANEMOMETER HEIGHT 20.00 DENSITY: 62.40 SEEPAGE: .20 LAKE LENGTH: 5500.00 INITIAL LAKE ELEVATION = 690.00 DRAWDOWN CURVE ELEVATION TOTAL AREA TOTAL VOLUME EFF AREA EFF VOLUME 690.000 82.990 423.500 74.690 381.200 689.000 81.350 341.400 73.210 307.200 688.000 79.750 260.800 71.780 234.700 687.000 78.150 181.900 70.340 163.700 686.000 29.700 102.200 26.730 92.000 685.000 22.220 60.000 20.000 54.000 PLOT FILE FREQ 1 INCREMENTS AT 0 HOURS INITIAL FORCED/NATURAL LAKE TEMPS. 97.90 93.40 WEATHER STATION ID 0. PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE B145 OF B358 Program LAKET-PC Page : 9 Number 03.7.292-1.0 0 Date 03/03/2000 Created Mon Oct 27 08:45:58 1997 Time : 14:59:25.23 Case 0606: LaSalle UHS (Updated Worst 36-Day Temp; Ti=97.9F 00600; power uprate FPLANT 70100 - 80500 R/I 86.000 TPRISE 70100 - 80500 S/I 35.260 28.790 16.680 16.280 15.320 14.970 14.530 14.290 13.880 13.450 13.300 13.300 13.300 13.240 12.730 12.730 12.570 12.430 12.240 12.020 12.020 12.020 12.020 12.010 11.490 11.490 11.490 11.490 11.490 11.490 11.490 11.490 11.090 11.070 11.070 11.070 11.070 10.870 10.860 10.860 10.500 10.500 10.500 10.500 10.500 10.500 10.500 10.500 10.500 10.500 10.500 10.500 10.500 10.500 10.500 10.270 9.990 9.990 9.990 9.990 9.990 9.990 9.990 9.990 9.990 9.990 9.990 9.990 9.990 9.990 9.990 9.990 9.990 9.990 9.720 9.700 9.700 9.700 9.700 9.700 9.540 9.540 9.540 9.540 9.540 9.540 9.540 9.540 9.540 9.540 9.540 9.540 9.400 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.150 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8.720 8.700 8.700 8.700 8.700 8.700 8.700 8.700 8.700 8.700 8.700 8.700 8.700 8.700 8.700 8.700 PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE B146 OF B358 8.700 8.700 8.700 8.700 8.700 8.520 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.440 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8,220 8.220 8.220 8.220 PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE B147 OF B358 Program LAKET-PC Page :10 Number 03.7.292-1.0 0 Date 03/03/2000 Created :Mon Oct 27 08:45:58 1997 Time 14:59:25.39 Case 0606: LaSalle UHS (Updated Worst 36-Day Temp; Ti=97.9F @0600; power uprate SEASONAL

SUMMARY

FOR SUMMER ( 6/1900 - 8/1900 ) QUANTITY MONTHLY AVERAGES AVERAGE JUN JUL AUG VALUE LAKE SEEPAGE (CFS) .00 -. 18 -. 16 -. 17 TOTAL EVAP (CFS) .00 -1.38 -1.29 -1.37 NATURAL EVAP (CFS) .00 -. 75 -. 74 -. 75 FORCED EVAP (CFS) .00 -. 63 -. 55 -. 62 PRECIPITATION (CFS) .00 .00 .00 .00 MAKEUP (CFS) .00 .00 .00 .00 BLOWDOWN (CFS) .00 .00 .00 .00 RUNOFF (CFS) .00 .00 .00 .00 DAM SPILL (CFS) .00 .00 .00 .00 LAKE ELEVATION (FEET) .00 689.36 688.75 689.28 DISSOLVED SOLIDS (PPM) .00 .00 .00 .00 NATURAL LAKE TEMP (F) .00 88.66 92.78 89.23 LAKE INLET TEMP (F) .00 99.51 101.81 99.83 LAKE OUTLET TEMP (F) .00 89.75 93.62 90.29 TEMPERATURE FREQUENCY OF OCCURENCES 1% 5% 50% NATURAL LAKE TEMP (F) 96.8 95.3 89.0 LAKE INLET TEMP (F) 126.0 108.0 99.3 LAKE OUTLET TEMP (F) 99.0 96.5 90.1 PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE B148 OF B358 Program LAKET-PC Page : 11 Number  : 03.7.292-1.0 0 Date : 03/03/2000 Created :Mon Oct 27 08:45:58 1997 Time : 14:59:25.39 Case 0606: LaSalle UHS (Updated Worst 36-Day Temp; Ti=97.9F @0600; power uprate CUMULATIVE SEASONAL

SUMMARY

SUMMER QUANTITY MONTHLY AVERAGES AVERAGE JUN JUL AUG VALUE LAKE SEEPAGE (CFS) .00 -. 18 -. 16 -. 17 TOTAL EVAP. (CFS) .00 -1,38 -1.29 -1.37 NATURAL EVAP (CFS) .00 -. 75 -. 74 -. 75 FORCED EVAP (CFS) .00 -. 63 -.55 -. 62 PRECIPITATION (CFS) .00 .00 .00 .00 MAKEUP (CFS) .00 .00 .00 .00 BLOWDOWN (CFS) .00 .00 .00 .00 RUNOFF (CFS) .00 .00 .00 .00 DAM SPILL (CPS) .00 .00 .00 .00 LAKE ELEVATION (FEET) .00 689.36 688.75 689.28 DISSOLVED SOLIDS (PPM) .00 .00 .00 .00 NATURAL LAKE TEMP (F) .00 88.66 92.78 89.23 LAKE INLET TEMP (F) .00 99.51 101.81 99.83 LAKE OUTLET TEMP (F) .00 89.75 93.62 90.29 TEMPERATURE FREQUENCY OF OCCURENCES 1% 5% 50%

NATURAL LAKE TEMP (F) 96.8 95.3 89.0 LAKE INLET TEMP (F) 126.0 108.0 99.3 LAKE OUTLET TEMP (F) 99.0 96.5 90.1 PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE B149 OF B358 Program LAKET-PC Page : 12 Number  : 03.7.292-1.0 0 Date 03/03/2000 Created Mon Oct 27 08:45:58 1997 Time 14:59:25.39 Case 0606: LaSalle UHS (Updated Worst 36-Day Temp; Ti=97.9F @0600; power uprate TOTAL CUMULATIVE

SUMMARY

QUANTITY MAXIMUM MINIMUM AVERAGE TOTAL FLOW VALUE ( DATE ) VALUE ( DATE ) VALUE (ACRE-FEET) LAKE SEEPAGE (CFS) -. 15 8051900) -. 20 7011900) -. 17 -1.24532E+01 TOTAL EVAP (CFS) -. 22 8041900) -4.46 7031900) -1.37 -9.74773E+01 NATURAL EVAP (CFS) .00 7011900) -3.44 7031900) -. 75 -5.35152E+01 FORCED EVAP (CFS) -. 22 8041900) -1.65 7011900) -. 62 -4.39622E+01 PRECIPITATION (CFS) .00 7011900) .00 7011900) .00 0.OOOOOE+00 MAKEUP (CFS) .00 7011900) .00 7011900) .00 0 OOOOOE+00 SLOWDOWN (CFS) .00 7011900) .00 7011900) .00 0 OOOOOE+00 RUNOFF (CFS) .00 7011900) .00 7011900) .00 0 OOOOOE+00 DAM SPILL (CFS) .00 7011900) .00 7011900) .00 0 OOOOOE+00 LAKE ELEVATION (FEET) 690.00 7011900) 688.65 8051900) 689.28 4. 92179E+04 DISSOLVED SOLIDS (PPM) .00 7011900) .00 7011900) .00 0 OOOOOE+00 NATURAL LAKE TEMP (F) 97.06 7011900) 82.15 7071900) 89.23 6. 37134E+03 LAKE INLET TEMP (F) 132.08 7011900) 92.96 7261900) 99.83 7. 12853E+03 LAKE OUTLET TEMP (F) 99.98 7011900) 83.38 7071900) 90.29 6.44715E+03 TEMPERATURE FREQUENCY OF OCCURENCES 1% 5% 50% NATURAL LAKE TEMP (F) 96.8 95.3 89.0 LAKE INLET TEMP (F) 126.0 108.0 99.3 LAKE OUTLET TEMP (F) 99.0 96.5 90.1 PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE B150 OF B358 Program LAKET-PC Page : 1 Number  : 03.7.292-1.0 0 Date : 03/06/2000 Created :Mon Oct 27 08:45:58 1997 Time : 10:28:47.11 Case 0609: LaSalle UHS (Updated Worst 5/1/30-Day Temp; Ti=97.SF @0900; power up 070100 080500 1 1 3 1 20 4 1 0.2 5500. 0 5 690. 690. I. 6 82.99 423.5 74 .69 381.2 81.35 341.4 73.21 307.2 79.75 260.8 71.78 234.7 78.15 181.9 70.34 163.7 29.70 102.2 26.73 92.0 22.22 60.0 20.00 54.0 1 0 97.5 93.0 999 EPLANT R/I 86.0 TPRISE S/I 35.26 28.79 16.68 16.28 15.32 14.97 14.53 14.29 13.88 13.45 13.30 13.30 13.30 13.24 12.73 12 .73 12.57 12.43 12.24 12.02 12.02 12.02 12.02 12.01 11.49 11.49 11.49 11.49 11.49 11.49 11.49 11.49 11.09 PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE B151 OF B358 Program LAKET-PC Page  : 2 Number  : 03.7.292-1.0 0 Date 03/06/2000 Created Mon Oct 27 08:45:58 1997 Time : 10:28:47.11 11.07 11.07 11.07 11.07 10.87 10.86 10.86 10.50 10.50 10.50 10.50 10.50 10.50 10.50 10.50 10.50 10.50 10.50 10.50 10.50 10.50 10.50 10.27 9.99 9.99 9.99 9.99 9.99 9.99 9.99 9.99 9.99 9.99 9.99 9.99 9.99 9.99 9.99 9.99 9.99 9.99 9.72 9.70 9.70 9.70 9.70 9.70 9.54 9.54 9.54 9.54 PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE B152 OF B358 Program : LAKET-PC Page : 3 Number  : 03.7.292-1.0 0 Date : 03/06/2000 Created :Mon Oct 27 08:45:58 1997 Time 10:28:47.16 9.54 9.54 9.54 9.54 9.54 9.54 9.54 9.54 9.40 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE B153 OF B358 Program LAKET-PC Page : 4 Number 03.7.292-1.0 0 Date 03/06/2000 Created Mon Oct 27 08:45:58 1997 Time 10:28:47.16 9.19 9.19 9.19 9.15 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.72 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.52 PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE B154 OF B358 Program : LAKET-PC Page : 5 Number 03.7.292-1.0 0 Date 03/06/2000 Created Mon Oct 27 08:45:58 1997 Time 10:28:47.16 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE B155 OF B358 Program : LAKET-PC Page : 6 Number  : 03.7.292-1.0 0 Date : 03/06/2000 Created :Mon Oct 27 08:45:58 1997 Time : 10:28:47.22 8.49 8.49 8.44 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8 .22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE B156 OF B358 Program LAKET-PC Page ; 7 Number  : 03.7.292-1.0 0 Date : 03/06/2000 Created :Mon Oct 27 08:45:58 1997 Time 10:28:47.33 END PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE B157 OF B358 Program  : LAKET-PC Page 8 Number  : 03.7.292-1.0 0 Date : 03/06/2000 Created Mon Oct 27 08:45:58 1997 Time : 10:28:47.71 Case 0609: LaSalle UHS (Updated Worst 5/1/30-Day Temp; Ti=97.SF @0900; power up RUN 36 DAYS FROM 70100 TO 80500 PLOT FILE OPTION : 1 CYCLE FLAG: 1 WEATHER FILE OPTION: 1 ANEMOMETER HEIGHT 20.00 DENSITY: 62.40 SEEPAGE: .20 LAKE LENGTH: 5500.00 INITIAL LAKE ELEVATION = 690.00 DRAWDOWN CURVE ELEVATION TOTAL AREA TOTAL VOLUME EFF AREA EFF VOLUME 690.000 82.990 423.500 74.690 381.200 689.000 81.350 341.400 73.210 307.200 688.000 79.750 260.800 71.780 234.700 687.000 78.150 181.900 70.340 163.700 686.000 29.700 102.200 26.730 92.000 685.000 22.220 60.000 20.000 54.000 PLOT FILE FREQ 1 INCREMENTS AT 0 HOURS INITIAL FORCED/NATURAL LAKE TEMPS. = 97.50 93.00 WEATHER STATION ID 0. PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE B158 OF B358 Program LAKET-PC Page : 9 Number 03.7.292-1.0 0 Date : 03/06/2000 Created Mon Oct 27 08:45:58 1997 Time : 10:28:47.71 Case 0609: LaSalle UHS (Updated Worst 5/1/30-Day Temp; Ti=97.5F 90900; power up FPLANT 70100 - 80500 R/I 86.000 TPRISE 70100 - 80500 S/I 35.260 28.790 16.680 16.280 15.320 14.970 14.530 14.290 13.880 13.450 13.300 13.300 13.300 13.240 12.730 12.730 12.570 12.430 12.240 12.020 12.020 12.020 12.020 12.010 11.490 11.490 11.490 11.490 11.490 11.490 11.490 11.490 11.090 11.070 11.070 11.070 11.070 10.870 10.860 10.860 10.500 10.500 10.500 10.500 10.500 10.500 10.500 10.500 10.500 10.500 10.500 10.500 10.500 10.500 10.500 10.270 9.990 9.990 9.990 9.990 9.990 9.990 9.990 9.990 9.990 9.990 9.990 9.990 9.990 9.990 9.990 9.990 9.990 9.990 9.720 9.700 9.700 9.700 9.700 9.700 9.540 9.540 9.540 9.540 9.540 9.540 9.540 9.540 9.540 9.540 9.540 9.540 9.400 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9 .190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.150 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8.720 8.700 8.700 8.700 8.700 8.700 8.700 8.700 8.700 8.700 8.700 8.700 8.700 8.700 8.700 8.700 8.700 8.700 8.700 8.700 PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE B159 OF B358 8.700 8.700 8.700 8.700 8.700 8.520 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 .8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.440 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8,220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE B160 OF B358 Program LAKET-PC Page 1.0 Number 03.7.292-1.0 0 Date : 03/06/2000 Created Mon Oct 27 08:45:58 1997 Time 210:28:47.99 Case 0609: LaSalle UHS (Updated Worst 5/1/30-Day Temp; Ti=97.5F @0900; power up SEASONAL

SUMMARY

FOR SUMMER ( 6/1900 - 8/1900 ) QUANTITY MONTHLY AVERAGES AVERAGE JUN JUL AUG VALUE LAKE SEEPAGE (CFS) .00 -. 17 -. 15 -. 17 TOTAL EVAP (CFS) .00 -1.62 -1.32 -1.58 NATURAL EVAP (CFS) .00 -. 97 -. 77 -. 94 FORCED EVAP (CFS) .00 -. 65 -. 55 -. 63 PRECIPITATION (CFS) .00 .00 .00 .00 MAKEUP (CFS) .00 .00 .00 .00 BLOWDOWN (CFS) .00 .00 .00 .00 RUNOFF (CFS) .00 .00 .00 -00 DAM SPILL (CFS) .00 .00 .00 .00 LAKE ELEVATION (FEET) .00 689.29 688.57 689.19 DISSOLVED SOLIDS (PPM) .00 .00 .00 .00 NATURAL LAKE TEMP (F) .00 90.79 89.62 90.63 LAKE INLET TEMP (F) .00 101.45 98.76 101.08 LAKE OUTLET TEMP (F) .00 91.70 90.58 91.55 TEMPERATURE FREQUENCY OF OCCURENCES 1% 5% 50% NATURAL LAKE TEMP (F) 97.0 95.9 90.9 LAKE INLET TEMP (F) 128.0 109.4 100.9 LAKE OUTLET TEMP (F) 99.0 97.1 91.9 PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE B161 OF B358 Program LAKET-PC Page 11 Number 03.7.292-1.0 0 Date : 03/06/2000 Created Mon Oct 27 08:45:58 1997 Time :10:28:48.04 Case 0609: LaSalle UHS (Updated Worst 5/1/30-Day Temp; Ti=97.SF 00900; power up CUMULATIVE SEASONAL

SUMMARY

SUMMER QUANTITY MONTHLY AVERAGES AVERAGE JUN JUL AUG VALUE LAKE SEEPAGE (CFS) .00 -. 17 -. 15 -. 17 TOTAL EVAP (CFS) .00 -1.62 -1.32 -1.58 NATURAL EVAP (CFS) .00 -. 97 -. 77 -. 94 FORCED EVAP (CFS) .00 -. 65 -. 55 -. 63 PRECIPITATION (CFS) .00 .00 .00 .00 MAKEUP (CFS) .00 .00 .00 .00 BLOWDOWN (CFS) .00 .00 .00 .00 RUNOFF (CFS) .00 .00 .00 .00 DAM SPILL (CFS) .00 .00 .00 .00 LAKE ELEVATION (FEET) .00 689.29 688.57 689.19 DISSOLVED SOLIDS (PPM) .00 .00 .00 .00 NATURAL LAKE TEMP (F) .00 90.79 89.62 90.63 LAKE INLET TEMP (F) .00 101.45 98.76 101.08 LAKE OUTLET TEMP (F) .00 91.70 90.58 91.55 TEMPERATURE FREQUENCY OF OCCURENCES 1% 5% 50%

NATURAL LAKE TEMP (F) 97.0 95.9 90.9 LAKE INLET TEMP (F) 128.0 109.4 100.9 LAKE OUTLET TEMP (F) 99.0 97.1 91.9 PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE B162 OF B358 Program LAKET-PC Page 12 Number 03.7.292-1.0 0 Date 03/06/2000 Created Mon Oct 27 08:45:58 1997 Time 10:28:48.04 Case 0609: LaSalle UHS (Updated Worst 5/1/30-Day Temp; Ti=97.SF @0900; power up TOTAL CUMULATIVE

SUMMARY

QUANTITY MAXIMUM MINIMUM AVERAGE TOTAL FLOW VALUE ( DATE ) VALUE ( DATE ) VALUE (ACRE-FEETV LAKE SEEPAGE (CFS) -. 15 8051900) -. 20 7011900) -. 17 -1.22325E+01 TOTAL EVAP (CFS) -. 32 8051900) -4.06 7051900) -1.S8 -1.12591E+02 NATURAL EVAP (CFS) .00 7031900) -2.67 7051900) -. 94 -6.74198E+01 FORCED EVAP (CFS) -. 26 7311900) -1.53 7011900) -. 63 -4.51712E+01 PRECIPITATION (CFS) .00 7011900) .00 7011900) .00 0.OOOOOE+00 MAKEUP (CFS) .00 7011900) .00 7011900) .00 0.OOOOOE+00 BLOWDOWN (CFS) .00 7011900) .00 7011900) .00 0.OOOOOE+00 RUNOFF (CFS) .00 7011900) .00 7011900) .00 0.OOOOOE+00 DAM SPILL (CFS) .00 7011900) .00 7011900) .00 0.00000E+00 LAKE ELEVATION (FEET) 689.99 7011900) 688.47 8051900) 689.19 4.92117E+04 DISSOLVED SOLIDS (PPM) .00 7011900) .00 7011900) .00 0.OOOOOE+00 NATURAL LAKE TEMP (F) 97.72 7041900) 81.74 7241900) 90.63 6.47137E+03 LAKE INLET TEMP (F) 132.95 7011900) 90.99 7241900) 101.08 7.21761E+03 LAKE OUTLET TEMP (F) 99.98 7011900) 82.50 7241900) 91.55 6.53681E+03 TEMPERATURE FREQUENCY OF OCCURENCES 1% 5% SO% NATURAL LAKE TEMP (F) 97.0 95.9 90.9 LAKE INLET TEMP (F) 128.0 109.4 100.9 LAKE OUTLET TEMP (F) 99.0 97.1 91.9 PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE B163 OF B358 Program LAKET-PC Page : 1 Number 03.7.292-1.0 0 Date : 03/06/2000 Created Mon Oct 27 08:45:58 1997 Time 11:24:37.23 Case 0612: LaSalle UHS (Updated worst 5/1/30-Day Temp; Ti=98.34F @1200; power u 1 2 070100 080500 1 1 3 1 20 4 1 0.2 5500. 0 S 690. 690. 1. 6 82.99 423.5 74.69 381.2 81.35 341.4 73.21 307.2 79.75 260.8 71.78 234.7 78.15 181.9 70.34 163.7 29.70 102.2 26.73 92.0 22.22 60.0 20.00 54.0 7 1 0 8 98.3 93.8 999 FPLANT R/I 86.0 TPRISE S/I 35.26 28.79 16.68 16.28 15.32 14.97 14 .53 14.29 13 .88 13.45 13 .30 13 .30 13.30 13 .24 12.73 12.73 12.57 12.43 12.24 12.02 12.02 12.02 12.02 12.01 11.49 11.49 11.49 11.49 11.49 11.49 11.49 11.49 11.09 PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE B164 OF B358 Program LAKET-PC Pag e 2 Number 03.7.292-1.0 0 Dat e 03/06/2000 Created Mon Oct 27 08:45:58 1997 Timee 11:24:37.23 11.07 11.07 11.07 11.07 10 .87 10.86 10.86 10.50 10.50 10.50 10.50 10 .50 10.50 10.50 10.50 10.50 10.50 10.50 10.50 10.50 10.50 10.50 10.27 9.99 9.99 9.99 9.99 9.99 9.99 9.99 9.99 9.99 9.99 9.99 9.99 9.99 9.99 9.99 9.99 9.99 9.99 9.72 9.70 9.70 9.70 9.70 9.70 9.54 9.54 9.54 9.54 PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE B165 OF B358 Program : LAKET-PC Pag e- 3 Number  : 03.7.292-1.0 0 Datee : 03/06/2000 Created :Mon Oct 27 08:45:58 1997 Timn- : 11:24:37.23 9.54 9.54 9.54 9.54 9.54 9.54 9.54 9.54 9.40 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE B166 OF B358 Program LAKET-PC Page  : 4 Date : 03/06/2000 Number 03.7.292-1.0 0 Time : 11:24:37.23 Created Mon Oct 27 08:45:58 1997 9.19 9.19 9.19 9.15 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.72 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.52 PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE B167 OF B358 Program LAKET-PC Page  : 5 Number 03.7.292-1.0 0 Date  : 03/06/2000 Created : Mon Oct 27 08:45:58 1997 Time  : 11:24:37.29 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8,49 8.49 8.49 8.49 8,49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE B168 OF B358 Program : LAKET-PC Page : 6 Number 03.7.292-1.0 0 Date 03/06/2000 Created Mon Oct 27 08:45:58 1997 Time : 11:24:37.34 8.49 8.49 8.44 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE B169 OF B358 Page : 7 Program LAKET-PC Date : 03/06/2000 Number 03.7.292-1.0 0 Time 11:24:37.45 Created Mon Oct 27 08:45:58 1997 END PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE B170 OF B358 Program  : LAKET-PC Page : 8 Number  : 03.7.292-1.0 0 Date : 03/06/2000 Created :Mon Oct 27 08:45:58 1997 Time 11:24:37.73 Case 0612: LaSalle UHS (Updated Worst 5/1/30-Day Temp; Ti=98.34F @1200; power u RUN 36 DAYS FROM 70100 TO 80500 PLOT FILE OPTION : 1 CYCLE FLAG: 1 WEATHER FILE OPTION: 1 ANEMOMETER HEIGHT 20.00 DENSITY: 62.40 SEEPAGE: .20 LAKE LENGTH: 5500.00 INITIAL LAKE ELEVATION = 690.00 DRAWDOWN CURVE ELEVATION TOTAL AREA TOTAL VOLUME EFF AREA EFF VOLUME 690.000 82.990 423.500 74.690 381.200 689.000 81.350 341.400 73.210 307.200 688.000 79.750 260.800 71.780 234.700 687.000 78.150 181.900 70.340 163.700 686.000 29.700 102.200 26.730 92.000 685.000 22.220 60.000 20.000 54.000 PLOT FILE FREQ 1 INCREMENTS AlT 0 HOURS INITIAL FORCED/NATURAL LAKE TEMPS. = 98.30 93.80 WEATHER STATION ID 0. PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE B171 OF B358 Program LAKET-PC Page : 9 Number 03.7.292-1.0 0 Date : 03/06/2000 Created Mon Oct 27 08:45:58 1997 Time : 11:24:37.73 Case 0612: LaSalle UHS (Updated worst 5/1/30-Day Temp; Ti=98.34F @1200; power u FPLANT 70100 - 80500 R/I 86.000 TPRISE 70100 - 80500 S/I 35.260 28.790 16.680 16.280 15.320 14.970 14.530 14.290 13.880 13.450 13.300 13.300 13.300 13.240 12.730 12.730 12.570 12.430 12.240 12.020 12.020 12.020 12.020 12.010 11.490 11.490 11.490 11.490 11.490 11.490 11.490 11.490 11.090 11.070 11.070 11.070 11.070 10.870 10.860 10.860 10.500 10.500 10,500 10.500 10.500 10.500 10.500 10.500 10.500 10.500 10.500 10.500 10.500 10.500 10.500 10.270 9.990 9.990 9.990 9.990 9.990 9.990 9.990 9.990 9.990 9.990 9.990 9.990 9.990 9.990 9.990 9.990 9.990 9.990 9.720 9.700 9.700 9.700 9.700 9.700 9.540 9.540 9.540 9.540

9. 540 9.540 9.540 9.540 9.540 9.540 9.540 9.540 9.400 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9 .190 9.190 9.190 9.190 9 .190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.150 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8. 850 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8.720 8.700 B.700 8.700 8.700 8.700 8.700 8.700 8.700 8.700 8.700 8.700 8.700 8.700 8.700 8.700 8 .700 8.700 8.700 8.700 PROJECT NO. 11333-297

ATTACHMENT B PAGE B172 OF B358 CALCULATION NO. L-002457 REVISION NO. 8 8.700 8.700 8.700 8.700 8.520 8.490 8.490 8.700 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.440 8.490 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE B173 OF B358 Program : LAKET-PC Page 10 Number 03.7.292-1.0 0 Date 03/06/2000 Created :Mon Oct 27 08:45:58 1997 Time 11:24:37.89 Case 0612: LaSalle UHS (Updated Worst 5/1/30-Day Temp; Ti=98.34F @1200; power u SEASONAL

SUMMARY

FOR SUMMER ( 6/1900 - 8/1900 ) QUANTITY MONTHLY AVERAGES AVERAGE JUN JUL AUG VALUE LAKE SEEPAGE (CFS) .00 -. 17 -. 15 -. 17 TOTAL EVAP (CFS) .00 -1.62 -1.32 -1.58 NATURAL EVAP (CFS) .00 -. 98 -. 77 -. 95 FORCED EVAP (CFS) .00 -. 65 -. 55 -. 63 PRECIPITATION (CFS) .00 .00 .00 .00 MAKEUP (CFS) .00 .00 .00 .00 BLOWDOWN (CFS) .00 .00 .00 .00 RUNOFF (CPS) .00 .00 .00 .00 DAM SPILL (CFS) .00 .00 .00 .00 LAKE ELEVATION (FEET) .00 689.29 688.56 689.19 DISSOLVED SOLIDS (PPM) .00 .00 .00 .00 NATURAL LAKE TEMP (F) .00 90.82 89.62 90.65 LAKE INLET TEMP (F) .00 101.47 98.76 101.10 LAKE OUTLET TEMP (F) .00 91.72 90.58 91.56 TEMPERATURE FREQUENCY OF OCCURENCES 1% 5% 50% NATURAL LAKE TEMP (F) 97.0 95.8 90.9 LAKE INLET TEMP (F) 128.0 109.5 100.9 LAKE OUTLET TEMP (F) 99.3 96.9 91.9 PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE B174 OF B358 Program LAKET-PC Page : 11 Number 03.7.292-1.0 0 Date 03/06/2000 Created Mon Oct 27 08:45:58 1997 Time : 11:24:37.89 Case 0612: LaSalle UHS (Updated Worst 5/1/30-Day Temp; Ti=98.34F @1200; power u CUMULATIVE SEASONAL

SUMMARY

SUMMER QUANTITY MONTHLY AVERAGES AVERAGE JUN JUL AUG VALUE LAKE SEEPAGE (CFS) .00 -. 17 -. 15 -. 17 TOTAL EVAP (CPS) .00 -1.62 -1.32 -1.58 NATURAL EVAP (CFS) .00 -. 98 -. 77 -. 95 FORCED EVAP (CFS) .00 -. 65 -. 55 -. 63 PRECIPITATION (CFS) .00 .00 .00 .00 MAKEUP (CFS) .00 .00 .00 .00 BLOWDOWN (CFS) .00 .00 .00 .00 RUNOFF (CFS) .00 .00 .00 .00 DAM SPILL (CFS) .00 .00 .00 .00 LAKE ELEVATION (FEET) .00 689.29 688.56 689.19 DISSOLVED SOLIDS (PPM) .00 .00 .00 .00 NATURAL LAKE TEMP (F) .00 90.82 89.62 90.65 LAKE INLET TEMP (F) .00 101.47 98.76 101.10 LAKE OUTLET TEMP (F) .00 91.72 90.58 91.56 TEMPERATURE FREQUENCY OF OCCURENCES 1% 5% 50%

NATURAL LAKE TEMP (F) 97.0 95.8 90.9 LAKE INLET TEMP (F) 128.0 109.5 100.9 LAKE OUTLET TEMP (F) 99.3 96.9 91.9 PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE B175 OF B358 Program LAKET-PC Page 12 Number 03.7.292-1.0 0 Date : 03/06/2000 Created Mon Oct 27 08:45:58 1997 Time 11:24:37.89 Case 0612: LaSalle UHS (Updated Worst 5/1/30-Day Temp; Ti=98.34F @1200; power u TOTAL CUMULATIVE

SUMMARY

QUANTITY MAXIMUM MINIMUM AVERAGE TOTAL FLOW VALUE ( DATE ) VALUE ( DATE ) VALUE (ACRE-FEET) LAKE SEEPAGE (CFS) -. 15 8051900) -. 20 7011900) -. 17 -1.22264E+01 TOTAL EVAP (CFS) -. 32 8051900) -3.97 7051900) -1.58 -1.12836E+02 NATURAL EVAP (CFS) .00 7031900) -2.66 7051900) -. 95 -6.76335E+01 FORCED EVAP (CFS) -. 26 7311900) -1.55 7011900) -. 63 -4.52026E+01 PRECIPITATION (CFS) .00 7011900) .00 7011900) .00 0.OOOOOE+00 MAKEUP (CFS) .00 7011900) .00 7011900) .00 0.OOOOOE+00 BLOWDOWN (CFS) .00 7011900) .00 7011900) .00 0.OOOOOE+00 RUNOFF (CPS) .00 7011900) .00 7011900) .00 0.OOOOOE+00 DAM SPILL (CFS) .00 7011900) .00 7011900) .00 0.OOOOOE+00 LAKE ELEVATION (FEET) 689.99 7011900) 688.47 8051900) 689.19 4.92116E+04 DISSOLVED SOLIDS (PPM) .00 7011900) .00 7011900) .00 0.OOOOOE+00 NATURAL LAKE TEMP (F) 97.70 7041900) 81.73 7241900) 90.65 6.47304E+03 LAKE INLET TEMP (F) 134.74 7011900) 90.99 7241900) 101.10 7.21878E+03 LAKE OUTLET TEMP (F) 99.96 7011900) 82.50 7241900) 91.56 6.53794E+03 TEMPERATURE FREQUENCY OF OCCURENCES 14 5% 50% NATURAL LAKE TEMP (F) 97.0 95.8 90.9 LAKE INLET TEMP (F) 128.0 109.5 100.9 LAKE OUTLET TEMP (F) 99.3 96.9 91.9 PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE B176 OF B358 Program LAKET-PC Page : 1 Number 03.7.292-1.0 0 Date : 03/06/2000 Created Mon Oct 27 08:45:58 1997 Time : 13:05:14.75 Case 0615: LaSalle UHS (Updated Worst 5/1/30-Day Temp; Ti=99.5F @1500; power up 1 2 070100 080500 1 1 3 1 20 4 1 0.2 5500. 0 5 690. 690. 1. 6 82.99 423.5 74.69 381.2 81.35 341.4 73.21 307.2 79.75 260.8 71.78 234.7 78.15 181. 9 70.34 163.7 29.70 102.2 26.73 92.0 22.22 60.0 20.00 54.0 7 1 0 8 99.5 95.0 999 FPLANT R/I 86.0 TPRISE S/i 35.26 28.79 16.68 16.28 15 .32 14 .97 14.53 14 .29 13 .88 13.45 13.30 13.30 13.30 13.24 12.73 12.73 12.57 12.43 12.24 12.02 12.02 12.02 12.02 12.01 11.49 11.49 11.49 11.49 11.49 11.49 11.49 11.49 11.09 PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE B177 OF B358 Program : LAKET-PC Page : 2 Number  : 03.7.292-1.0 0 Date : 03/06/2000 Created Mon Oct 27 08:45:58 1997 Time : 13:05:14.75 11.07 11.07 11.07 11.07 10.87 10.86 10.86 10.50 10.50 10.50 10.50 10.50 10.50 10.50 10 .50 10 .50 10 .50 10.50 10 .50 10 .50 10 .50 10.50 10.27 9.99 9.99 9.99 9.99 9.99 9.99 9.99 9.99 9.99 9.99 9.99 9.99 9.99 9.99 9.99 9.99 9.99 9.99 9.72 9.70 9.70 9.70 9.70 9.70 9.54 9.54 9.54 9.54 PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE B178 OF B358 Program : LAKET-PC Page : 3 Number 03.7.292-1.0 0 Date : 03/06/2000 Created Mon Oct 27 08:45:58 1997 Time : 13:05:14.75 9.54 9.54 9.54 9.54 9.54 9.54 9.54 9.54 9.40 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE B179 OF B358 Program : LAKET-PC Page : 4 Number  : 03.7.292-1.0 0 Date : 03/06/2000 Created Mon Oct 27 08:45:58 1997 Time 13:05:14.75 9.19 9.19 9.19 9.15 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.72 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.52 PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE B180 OF B358 Program LAKET-PC Page : 5 Number 03.7.292-1.0 0 Date 03/06/2000 Created :Mon Oct 27 08:45:58 1997 Time : 13:05:14.81 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE B181 OF B358 Program : LAKET-PC Page  : 6 Number  : 03.7.292-1.0 0 Date  : 03/06/2000 Created :Mon Oct 27 08:45:58 1997 Time  : 13:05:14.86 8.49 8.49 8.44 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE B182 OF B358 Program LAKET-PC Page : 7 Number : 03.7.292-1.0 0 Date : 03/06/2000 Created :Mon Oct 27 08:45:58 1997 Time : 13:05:14.97 END PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE B183 OF B358 Program LAKET-PC Page : 8 Number  : 03.7.292-1.0 0 Date 03/06/2000 Created Mon Oct 27 08:45:58 1997 Time : 13:05:15.36 Case 0615: LaSalle UHS (Updated Worst 5/1/30-Day Temp; Ti=99.5F @1500; power up RUN 36 DAYS FROM 70100 TO 80500 PLOT FILE OPTION : 1 CYCLE FLAG: 1 WEATHER FILE OPTION: 1 ANEMOMETER HEIGHT 20.00 DENSITY: 62.40 SEEPAGE: .20 LAKE LENGTH: 5500.00 INITIAL LAKE ELEVATION = 690.00 DRAWDOWN CURVE ELEVATION TOTAL AREA TOTAL VOLUME EFF AREA EFF VOLUME 690.000 82.990 423.500 74.690 381.200 689.000 81.350 341.400 73.210 307.200 688.000 79.750 260.800 71.780 234.700 687.000 78.150 181.900 70.340 163.700 686.000 29.700 102.200 26.730 92.000 685.000 22.220 60.000 20.000 54.000 PLOT FILE FREQ 1 INCREMENTS AT 0 HOURS INITIAL FORCED/NATURAL LAKE TEMPS. 99.50 95.00 WEATHER STATION ID 0. PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE B184 OF B358 Program : LAKET-PC Page : 9 Number  : 03.7.292-1.0 0 Date : 03/06/2000 Created : Mon Oct 27 08:45:58 1997 Time : 13:05:15.36 Case 0615: LaSalle UHS (Updated Worst 5/1/30-Day Temp; Ti=99.5F @1500; power up FPLANT 70100 - 80500 R/I 86.000 TPRISE 70100 - 80500 S/I 35.260 28.790 16.680 16.280 15.320 14.970 14.530 14.290 13.880 13.450 13.300 13.300 13.300 13.240 12.730 12.730 12.570 12.430 12.240 12.020 12.020 12.020 12.020 12.010 11.490 11.490 11.490 11.490 11.490 11.490 11.490 11.490 11.090 11.070 11.070 11.070 11.070 10.870 10.860 10.860 10.500 10.500 10.500 10.500 10.500 10.500 10.500 10.500 10.500 10.500 10,500 10.500 10.500 10.500 10.500 10.270 9.990 9.990 9.990 9.990 9.990 9.990 9.990 9.990 9.990 9.990 9.990 9.990 9.990 9.990 9.990 9.990 9.990 9.990 9.720 9.700 9.700 9.700 9.700 9.700 9.540 9.540 9.540 9.540 9.540 9.540 9.540 9.540 9.540 9.540 9.540 9.540 9.400 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.150 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8.720 8.700 8.700 8.700 8.700 8.700 8.700 8.700 8.700 8.700 8.700 8.700 8.700 8.700 8.700 8.700 8.700 8.700 8.700 8.700 PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE B185 OF B358 8.700 8.700 8.700 8.700 8.700 8.520 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.440 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE B186 OF B358 Program  : LAKET-PC Page 10 Number 03.7.292-1.0 0 Date 03/06/2000 Created :Mon Oct 27 08:45:58 1997 Time 13:05:15.52 Case 0615: LaSalle UHS (Updated Worst 5/1/30-Day Temp; Ti=99.5F @1500; power up SEASONAL

SUMMARY

FOR SUMMER ( 6/1900 - 8/1900 ) QUANTITY MONTHLY AVERAGES AVERAGE JUN JUL AUG VALUE LAKE SEEPAGE (CFS) .00 -. 17 -. 15 -. 17 TOTAL EVAP (CFS) .00 -1.63 -1.32 -1.59 NATURAL EVAP (CFS) .00 -. 98 -. 77 -. 95 FORCED EVAP (CFS) .00 -. 65 -. 55 -. 63 PRECIPITATION (CFS) .00 .00 .00 .00 MAKEUP (CFS) .00 .00 .00 .00 BLOWDOWN (CFS) .00 .00 .00 .00 RUNOFF (CFS) .00 .00 .00 .00 DAM SPILL (CFS) .00 .00 .00 .00 LAKE ELEVATION (FEET) .00 689.29 688.56 689.19 DISSOLVED SOLIDS (PPM) .00 .00 .00 .00 NATURAL LAKE TEMP (F) .00 90.79 89.62 90.62 LAKE INLET TEMP (F) .00 101.43 98.77 101.06 LAKE OUTLET TEMP (F) .00 91.67 90.59 91.52 TEMPERATURE FREQUENCY OF OCCURENCES 1% 5% 50% NATURAL LAKE TEMP (F) 97.0 95.8 90.9 LAKE INLET TEMP (F) 127.0 109.0 100.9 LAKE OUTLET TEMP (F) 98.8 96.8 91.9 PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE B187 OF B358 Program : LAKET-PC Page : 11 Number  : 03.7.292-1.0 0 Date : 03/06/2000 Created :Mon Oct 27 08:45:58 1997 Time 13:05:15.52 Case 0615: LaSalle UHS (Updated Worst 5/1/30-Day Temp; Ti=99.SF @1500; power up CUMULATIVE SEASONAL

SUMMARY

SUMMER QUANTITY MONTHLY AVERAGES AVERAGE JUN JUL AUG VALUE LAKE SEEPAGE (CFS) .00 -. 17 -. 15 -. 17 TOTAL EVAP (CFS) .00 -1.63 -1.32 -1.59 NATURAL EVAP (CFS) .00 -. 98 -. 77 -. 95 FORCED EVAP (CFS) .00 -. 65 -. 55 -. 63 PRECIPITATION (CFS) .00 .00 .00 .00 MAKEUP (CFS) .00 .00 .00 .00 BLOWDOWN (CFS) .00 .00 .00 .00 RUNOFF (CFS) .00 .00 .00 .00 DAM SPILL (CFS) .00 .00 .00 .00 LAKE ELEVATION (FEET) .00 689.29 688.56 689.19 DISSOLVED SOLIDS (PPM) .00 .00 .00 .00 NATURAL LAKE TEMP (F) .00 90.79 89.62 90.62 LAKE INLET TEMP (F) .00 101.43 98.77 101.06 LAKE OUTLET TEMP (F) .00 91.67 90.59 91.52 TEMPERATURE FREQUENCY OF OCCURENCES 1% 5% 50%

NATURAL LAKE TEMP (F) 97.0 95.8 90.9 LAKE INLET TEMP (F) 127.0 109.0 100.9 LAKE OUTLET TEMP (F) 98.8 96.8 91.9 PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE B188 OF B358 Program LAKET-PC Page  : 12 Number 03.7.292-1.0 0 Date : 03/06/2000 Created Mon Oct 27 08:45:58 1997 Time 213:05:15.52 Case 0615: LaSalle UHS (Updated Worst 5/1/30-Day Temp; Ti=99.SF 01500; power up TOTAL CUMULATIVE

SUMMARY

......................                                                           A........UM......MI.....IMUM........AVERAGE............TOTA..........FLO......

QUANTITY MAXIMUM MINIMUM AVERAGE TOTAL FLOW VALUE ( DATE ) VALUE ( DATE ) VALUE (ACRE-FEET) LAKE SEEPAGE (CFS) -. 15 8051900) -. 20 7011900) -. 17 -1.22170E+01 TOTAL EVAP (CFS) -. 32 8051900) -4.00 7051900) -1.59 -1.13212E+02 NATURAL EVAP (CFS) .00 7031900) -3.20 7051900) -. 95 -6.80232E+01 FORCED EVAP (CFS) -. 26 7311900) -1.59 7011900) -. 63 -4.51890E+01 PRECIPITATION (CFS) .00 7011900) .00 7011900) .00 0.OOOOOE+00 MAKEUP (CFS) .00 7011900) .00 7011900) .00 0.OOOOOE+00 BLOWDOWN (CFS) .00 7011900) .00 7011900) .00 0.OOOOOE+00 RUNOFF (CFS) .00 7011900) .00 7011900) .00 0.OOOOOE+00 DAM SPILL (CFS) .00 7011900) .00 7011900) .00 0.OOOOOE+00 LAKE ELEVATION (FEET) 689.99 7011900) 688.46 8051900) 689.19 4.92113E+04 DISSOLVED SOLIDS (PPM) .00 7011900) .00 7011900) .00 0.OOOOOE+00 NATURAL LAKE TEMP (F) 97.57 7041900) 81.73 7241900) 90.62 6.47104E+03 LAKE INLET TEMP (F) 135.23 7011900) 91.15 7241900) 101.06 7.21610E+03 LAKE OUTLET TEMP (F) 99.97 7011900) 82.66 7241900) 91.52 6.53520E+03 TEMPERATURE FREQUENCY OF OCCURENCES 1% 5% - 50% NATURAL LAKE TEMP (F) 97.0 95.8 90.9 LAKE INLET TEMP (F) 127.0 109.0 100.9 LAKE OUTLET TEMP (F) 98.8 96.8 91.9 PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE B189 OF B358 Program : LAKET-PC Page : 1 Number  : 03.7.292-1.0 0 Date : 03/03/2000 Created :Mon Oct 27 08:45:58 1997 Time 16:34:23.31 Case 0618: LaSalle t-HS (Updated Worst 36-Day Temp; Ti=100.OF @1800; power uprat 1 2 070100 080500 1 3 1 20 4 1 0.2 5500. 0 5 690. 690. 1. 6 82.99 423.5 74.69 381.2 81.35 341.4 73.21 307.2 79.75 260.8 71.78 234.7 78.15 181.9 70.34 163.7 29.70 102.2 26.73 92.0 22.22 60.0 20.00 54.0 7 1 0 8 100.0 95.5 999 FPLANT R/x 86.0 TPRISE S/I 35.26 28.79 16.68 16.28 15.32 14.97 14.53 14.29 13.88 13.45 13.30 13 .30 13 .30 13 .24 12.73 12.73 12 .57 12.43 12.24 12 .02 12 .02 12.02 12.02 12.01 11.49 11.49 11.49 11.49 11.49 11.49 11.49 11.49 11.09 PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE B190 OF B358 Program : LAKET-PC Page : 2 Number  : 03.7.292-1.0 0 Date : 03/03/2000 Created Mon Oct 27 08:45:58 1997 Time 16:34:23.36 11.07 11.07 11.07 11.07 10.87 10.86 10.86 10.50 10.50 10.50 10.50 10.50 10.50 10.50 10.50 10.50 10.50 10.50 10.50 10.50 10.50 10,50 10.27 9.99 9.99 9.99 9.99 9.99 9.99 9.99 9.99 9.99 9.99 9.99 9.99 9.99 9.99 9.99 9.99 9.99 9.99 9.72 9.70 9.70 9.70 9.70 9.70 9.54 9.54 9.54 9.54 PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE B191 OF B358 Page  : 3 Program : LAKET-PC Date  : 03/03/2000 Number  : 03.7.292-1.0 0 Time  : 16:34:23.36 created :Mon Oct 27 08:45:58 1997 9.54 9.54 9.84 9.54 9.54 9.54 9.54 9 .54 9.40 9 .19 9 .19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE B192 OF B358 Program LAKET-PC Page : 4 Number  : 03.7.292-1.0 0 Date 03/03/2000 Mon Oct 27 08:45:58 1997 Time : 16:34:23.36 Created 9.19 9.19 9.19 9.15 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.72 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.52 PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE B193 OF B358 Program : LAKET-PC Page  : 5 Number 03.7.292-1.0 0 Date  : 03/03/2000 Created Mon Oct 27 08:45:58 1997 Time 16:34:23.42 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE B194 OF B358 Program LAKET-PC Page : 6 Number  : 03.7.292-1.0 0 Date : 03/03/2000 Created :Mon Oct 27 08:45:58 1997 Time : 16:34:23.47 8.49 8.49 8.44 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE B195 OF B358 Program LAKET-PC Page : 7 Number 03.7.292-1.0 0 Date  : 03/03/2000 Created :Mon Oct 27 08:45:58 1997 Time 16:34:23.58 END PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE B196 OF B358 Program : LAKET-PC Page  : 8 Number 03.7.292-1.0 0 Date 03/03/2000 Created : Mon Oct 27 08:45:58 1997 Time  : 16:34:23.97 Case 0618: LaSalle UHS (Updated Worst 36-Day Temp; Ti=100.OF @1800; power uprat RUN 36 DAYS FROM 70100 TO 80500 PLOT FILE OPTION : 1 CYCLE FLAG: 1 WEATHER FILE OPTION: 1 ANEMOMETER HEIGHT 20.00 DENSITY: 62.40 SEEPAGE: ,20 LAKE LENGTH: 5500.00 INITIAL LAKE ELEVATION = 690.00 DRAWDOWN CURVE ELEVATION TOTAL AREA TOTAL VOLUME EFF AREA EFF VOLUME 690.000 82.990 423.500 74.690 381.200 689.000 81.350 341.400 73.210 307.200 688.000 79.750 260.800 71.780 234.700 687.000 78.150 181.900 70.340 163.700 686.000 29.700 102.200 26.730 92.000 685.000 22.220 60.000 20.000 54.000 PLOT FILE FREQ 1 INCREMENTS Al 0 HOURS INITIAL FORCED/NATURAL LAKE TEMPS. = 100.00 95.SO WEATHER STATION ID 0. PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE B197 OF B358 Program LAKET-PC Page : 9 Number  : 03.7.292-1.0 0 Date 03/03/2000 Created :Mon Oct 27 08:45:58 1997 Time 16:34:23.97 Case 0618: LaSalle UHS (Updated Worst 36-Day Temp; Ti=100.OF @1800; power uprat FPLANT 70100 - 80500 R/I 86.000 TPRISE 70100 - 80500 S/I 35.260 28.790 16.680 16.280 15.320 14.970 14.530 14.290 13.880 13.450 13.300 13.300 13.300 13.240 12.730 12.730 12.570 12.430 12.240 12.020 12.020 12.020 12.020 12.010 11.490 11.490 11.490 11.490 11.490 11.490 11.490 11.490 11.090 11.070 11.070 11.070 11.070 10.870 10.860 10.860 10.500 10.500 10.500 10.500 10.500 10.500 10.500 10.500 10.500 10.500 10.500 10.500 10.500 10.500 10.500 10.270 9.990 9.990 9.990 9.990 9.990 9.990 9.990 9.990 9.990 9.990 9.990 9.990 9.990 9.990 9.990 9.990 9.990 9.990 9.720 9.700 9.700 9 .700 9.700 9.700 9.540 9.540 9.540 9.540 9.540 9.540 9.540 9.540 9.540 9.540 9.540 9.540 9.400 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.150 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8.720 8.700 8.700 8.700 8.700 8.700 8.700 8.700 8.700 8.700 8.700 8.700 8.700 8.700 8.700 8.700 8.700 8.700 8.700 8.700 PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE B198 OF B358 8.700 8.700 8.700 8.700 8.700 8.520 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.440 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE B199 OF B358 Program LAKET-PC Page  : 10 Number 03.7.292-1.0 0 Date 03/03/2000 Created :Mon Oct 27 08:45:58 1997 Time 16:34:24.13 Case 0618: LaSalle UHS (Updated Worst 36-Day Temp; Ti=100.OF @1800; power uprat SEASONAL

SUMMARY

FOR SUMMER ( 6/1900 - 8/1900 ) QUANTITY MONTHLY AVERAGES AVERAGE JUN JUL AUG VALUE LAKE SEEPAGE (CFS) .00 -. 18 -. 16 -. 17 TOTAL EVAP (CFS) .00 -1.37 -1.33 -1.36 NATURAL EVAP (CFS) .00 -. 74 -. 79 -. 75 FORCED EVAP (CFS) .00 -. 62 -. 55 -. 61 PRECIPITATION (CFS) .00 00 .00 .00 MAKEUP (CFS) .00 .00 00 .00 BLOWDOWN (CFS) .00 .00 .00 .00 RUNOFF (CFS) .00 .00 .00 .00 DAM SPILL (CFS) .00 .00 .00 .00 LAKE ELEVATION (FEET) .00 689.37 688.76 689.29 DISSOLVED SOLIDS (PPM) .00 .00 .00 .00 NATURAL LAKE TEMP (F) .00 88.48 92.68 89.07 LAKE INLET TEMP (F) .00 99.36 101.66 99.68 LAKE OUTLET TEMP (F) .00 89.60 93.49 90.14 TEMPERATURE FREQUENCY OF OCCURENCES 1% 5% 50% NATURAL LAKE TEMP (F) 96.3 94.6 88.9 LAKE INLET TEMP (F) 125.0 105.6 99.3 LAKE OUTLET TEMP (F) 97.7 95.7 90.1 PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE B200 OF B358 Program LAKET-PC Page  : 11 Number 03.7.292-1.0 0 Date 03/03/2000 Created :Mon Oct 27 08:45:58 1997 Time  : 16:34:24.13 Case 0618: LaSalle UHS (Updated Worst 36-Day Temp; Ti=100.OF @1800; power uprat CUMULATIVE SEASONAL

SUMMARY

SUMMER QUANTITY MONTHLY AVERAGES AVERAGE JUN JUL AUG VALUE LAKE SEEPAGE (CFS) .00 -. 18 -. 16 -. 17 TOTAL EVAP {CFS) .00 -1.37 -1.33 -1.36 NATURAL EVAP (CFS) .00 -. 74 -. 79 -. 75 FORCED EVAP (CFS) .00 -. 62 -. 55 -. 61 PRECIPITATION (CFS) .00 .00 .00 .00 MAKEUP (CFS) .00 .00 .00 .00 ELOWDOWN (CFS) .00 .00 .00 .00 RUNOFF (CFS) .00 .00 .00 .00 DAM SPILL (CFS) .00 .00 .00 .00 LAKE ELEVATION (FEET) .00 689.37 688.76 689.29 DISSOLVED SOLIDS (PPM) .00 .00 .00 .00 NATURAL LAKE TEMP (F) .00 88.48 92.68 89.07 LAKE INLET TEMP (F) .00 99.36 101.66 99.68 LAKE OUTLET TEMP (F) .00 89.60 93.49 90.14 TEMPERATURE FREQUENCY OF OCCURENCES 1% 5% 50%

NATURAL LAKE TEMP (F) 96.3 94.6 88.9 LAKE INLET TEMP (F) 125.0 105.6 99.3 LAKE OUTLET TEMP (F) 97.7 95.7 90.1 PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE B201 OF B358 Program : LAKET-PC Page 12 Number 03.7.292-1.0 0 Date 03/03/2000 Created Mon Oct 27 08:45:58 1997 Time 16:34:24.13 Case 0618: LaSalle UHS (Updated Worst 36-Day Temp; Ti=J00.OF @1800; power uprat TOTAL CUMULATIVE

SUMMARY

QUANTITY MAXIMUM MINIMUM AVERAGE TOTAL FLOW VALUE ( DATE ) VALUE ( DATE ) VALUE (ACRE-FEET) LAKE SEEPAGE (CFS) -. 15 8051900) -. 20 7011900) -. 17 -1.24752E+01 TOTAL EVAP (CFS) -. 22 8031900) -4.54 7021900) -1.36 -9.72176E+01 NATURAL EVAP (CFS) .00 7011900) -3.35 7021900) -. 75 -5. 34099E+01 FORCED EVAP (CFS) -. 22 8031900) -1.77 7011900) -. 61 -4. 38076E+01 PRECIPITATION (CFS) .00 7011900) .00 7011900) .00 0 OOOOOE+00 MAKEUP (CFS) .00 7011900) .00 7011900) .00 0. 00000E+00 BLOWDOWN (CFS) .00 7011900) .00 7011900) .00 0 OOOOOE+00 RUNOFF (CFS) .00 7011900) .00 7011900) .00 0 OOOOOE+00 DAM SPILL (CFS) .00 7011900) .00 7011900) .00 0.00000E+00 LAKE ELEVATION (FEET) 689.99 7011900) 688.66 8051900) 689.29 4.92185E+04 DISSOLVED SOLIDS (PPM) .00 7011900) .00 7011900) .00 0.00000E+00 NATURAL LAKE TEMP (F) 96.90 8031900) 82.07 7061900) 89.07 6.35974E+03 LAKE INLET TEMP (F) 133.82 7011900) 93.08 7251900) 99.68 7.11789E+03 LAKE OUTLET TEMP (F) 98.56 7011900) 83.55 7061900) 90.14 6.43622E+03 TEMPERATURE FREQUENCY OF OCCURENCES 1% 5% 50% NATURAL LAKE TEMP (F) 96.3 94.6 88.9 LAKE INLET TEMP (F) 125.0 105.6 99.3 LAKE OUTLET TEMP (F) 97.7 95.7 90.1 PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE B202 OF B358 Program : LAKET-PC Page : 1 Number  : 03.7.292-1.0 0 Date : 03/03/2000 Created :Mon Oct 27 08:45:58 1997 Time : 16:40:56.46 Case 0621: LaSalle UHS (Updated Worst 36-Day Temp; Ti=100.OF @2100; power uprat 1 2 070100 080500 1 1 3 1 20 4 1 0.2 5500. 0 5 690. 690. 1. 6 82.99 423.5 74.69 381.2 81.35 341.4 73.21 307.2 79.75 260.8 71.78 234.7 78.15 181.9 70.34 163.7 29.70 102.2 26.73 92.0 22.22 60.0 20.00 54.0 7 1 0 8 100.0 95.5 999 FPLANT R/I 86.0 TPRISE S/I 35.26 28.79 16.68 16.28 15.32 14.97 14.53 14.29 13.88 13.45 13.30 13.30 13 '30 13.24 12.73 12.73 12.57 12.43 12.24 12.02 12.02 12.02 12.02 12.01 11.49 11.49 11 .49 11.49 11.49 11.49 11.49 11.49 11.09 PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE B203 OF B358 Program L:AKET-PC Page : 2 Number 03.7.292-1.0 0 Date 03/03/2000 Created Mon Oct 27 08:45:S5 1997 Time 16:40:56.46 11.07 11.07 11.07 11.07 10.87 10.86 10.86 10.50 10.50 10.50 10.50 10.50 10.50 10.50 10.50 10.50 10.50 10.50 10.50 10.50 10.50 10.50 10.27 9.99 9.99 9.99 9.99 9.99 9.99 9.99 9.99 9.99 9.99 9.99 9.99 9.99 9,99 9.99 9.99 9.99 9.99 9.72 9.70 9.70 9.70 9.70 9.70 9.54 9.54 9.54 9.54 PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE B204 OF B358 Program LAKET-PC Page  : 3 Number 03.7.292-1.0 0 Date 03/03/2000 Created Mon Oct 27 08:45:58 1997 Time 16:40:56.46 9.54 9.54 9.54 9.54 9.54 9.54 9.54 9.54 9.40 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9 .19 9 .19 9.19 9.19 9.19 9.19 9.19

9. 19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE B205 OF B358 Program LAKET-PC Page: 4 Number 03.7.292-1.0 0 Date 03/03/2000 Created :Mon Oct 27 08:45:58 1997 Time : 16:40:56.46 9.19 9.19 9.19 9.15 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.72 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.52 PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE B206 OF B358 Program LAKET-PC Page : 5 Number 03.7.292-1.0 0 Date 03/03/2000 Created Mon Oct 27 08:45:56 1997 Time : 16:40:56.52 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE B207 OF B358 Program :LAKET-PC Page : 6 Number 03.7.292-1.0 0 Date 03/03/2000 Created : Mon Oct 27 08:45:58 1997 Time 16:40:56.57 8.49 8 .49 8.44 8.22 8.22 8.22 8.22 8.22 8.22 8 .22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8 .22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8 .22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE B208 OF B358 Program : LAKET-PC Page : 7 Number : 03.7.292-1.0 0 Date : 03/03/2000 Created : Mon Oct 27 08:45:58 1997 Time : 16:40:56.68 END PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE B209 OF B358 Program : LAKET-PC Page : 8 Number  : 03.7.292-1.0 0 Date : 03/03/2000 Created Mon Oct 27 08:45:58 1997 Time 16:40:57.07 Case 0621: LaSalle UHS (Updated Worst 36-Day Temp; Ti:=100.OF 02100; power uprat RUN 36 DAYS FROM 70100 TO 80500 PLOT FILE OPTION : I CYCLE FLAG: 1 WEATHER FILE OPTION: 1 ANEMOMETER HEIGHT 20.00 DENSITY: 62.40 SEEPAGE: .20 LAKE LENGTH: 5500.00 INITIAL LAKE ELEVATION = 690.00 DRAWDOWN CURVE ELEVATION TOTAL AREA TOTAL VOLUME EF F AREA EFF VOLUME 690.000 82.990 423.500 74.690 381.200 689.000 81.350 341.400 73.210 307.200 688.000 79.750 260.800 71.780 234 .700 687.000 78.150 181.900 70.340 163.700 686.000 29.700 102.200 26.730 92.000 685.000 22.220 60.000 20.000 54 .000 PLOT FILE FREQ 1 INCREMENTS AT 0 HOURS INITIAL FORCED/NATURAL LAKE TEMPS. = 100.00 95 .50 WEATHER STATION ID 0. PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE B210 OF B358 Program LAKET-PC Page  : 9 Number 03.7.292-1.0 0 Date : 03/03/2000 Created Mon Oct 27 08:45:58 1997 Time 16:40:57.07 Case 0621: LaSalle UHS (Updated Worst 36-Day Temp; Ti=100.OF 02100; power uprat FPLANT 70100 - 80500 R/I 86.000 TPRISE 70100 - 80500 S/I 35.260 28.790 16.680 16.280 15.320 14.970 14.530 14.290 13.880 13.450 13.300 13.300 13.300 13.240 12.730 12.730 12.570 12.430 12.240 12.020 12.020 12.020 12.020 12.010 11.490 11.490 11.490 11.490 11.490 11.490 11.490 11.490 11.090 11.070 11.070 11.070 11.070 10.870 10.860 10.860 10.500 10.500 10.500 10.500 10.500 10.500 10.500 10.500 10.500 10.500 10.500 10.500 10.500 10.500 10.500 10.270 9.990 9.990 9.990 9.990 9.990 9.990 9.990 9.990 9.990 9.990 9.990 9.990 9.990 9.990 9.990 9.990 9.990 9.990 9.720 9.700 9.700 9.700 9.700 9.700 9.540 9.540 9.540 9.540 9.540 9.540 9.540 9.540 9.540 9.540 9.540 9.540 9.400 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.150 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8.720 8.700 8.700 8.700 8.700 8.700 8.700 8.700 8.700 8.700 8.700 8.700 8.700 8.700 8.700 8.700 8.700 8.700 8.700 8.700 PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE B211 OF B358 8.700 8.700 8.700 8.700 8.700 8.520 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8,490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.440 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE B212 OF B358 Program  : LAKET-PC Page 10 Number  : 03.7.292-1.0 0 Date 03/03/2000 Created Mon Oct 27 08:45:58 1997 Time 16:40:57.23 Case 0621: LaSalle UHS (Updated Worst 36-Day Temp; Ti=100.0F @2100; power uprat SEASONAL

SUMMARY

FOR SUMMER ( 6/1900 - 8/1900 ) QUANTITY MONTHLY AVERAGES AVERAGE JUN JUL AUG VALUE LAKE SEEPAGE (CFS) .00 -. 18 -. 16 -. 17 TOTAL EVAP (CFS) .00 -1.37 -1.36 -1.37 NATURAL EVAP (CFS) .00 -. 74 -. 81 -. 75 FORCED EVAP (CFS) .00 -. 62 -. 55 -. 61 PRECIPITATION (CrS) .00 .00 .00 .00 MAKEUP (CFS) .00 .00 .00 .00 BLOWDOWN (CFS) .00 .00 .00 .00 RUNOFF (CFS) .00 .00 .00 .00 DAM SPILL (CFS) .00 .00 .00 .00 LAKE ELEVATION (FEET) .00 689.37 688.76 689.29 DISSOLVED SOLIDS (PPM) .00 .00 .00 .00 NATURAL LAKE TEMP (F) .00 88.51 92.64 89.09 LAKE INLET TEMP (F) .00 99.37 101.59 99.68 LAKE OUTLET TEMP (F) .00 89.61 93.40 90.13 TEMPERATURE FREQUENCY OF OCCURENCES 1% 5% 50% NATURAL LAKE TEMP (F) 96.5 94.7 88.9 LAKE INLET TEMP (F) 125.0 105.5 99.3 LAKE OUTLET TEMP (F) 97.7 95.8 90.1 PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE B213 OF B358 Program LAKET-PC Page : 11 Number  : 03.7.292-1.0 0 Date : 03/03/2000 Created :Mon Oct 27 08:45:58 1997 Time : 16:40:57.23 Case 0621: LaSalle UHS (Updated Worst 36-Day Temp; Ti=100.OF @2100; power uprat CUMULATIVE SEASONAL

SUMMARY

SUMMER QUANTITY MONTHLY AVERAGES AVERAGE JUN JUL AUG VALUE LAKE SEEPAGE (CFS) .00 -. 18 -. 16 -. 17 TOTAL EVAP (CFS) .00 -1.37 -1.36 -1.37 NATURAL EVAP (CFS) .00 -. 74 -. 81 -. 75 FORCED EVAP (CFS) .00 -. 62 -. 55 -. 61 PRECIPITATION (CFS) .00 .00 .00 .00 MAKEUP (CFS) .00 .00 .00 .00 BLOWDOWN (CFS) .00 .00 .00 .00 RUNOFF (CFS) .00 .00 .00 .00 DAM SPILL (CFS) .00 .00 .00 .00 LAKE ELEVATION (FEET) .00 689.37 688.76 689.29 DISSOLVED SOLIDS (PPM) .00 .00 .00 .00 NATURAL LAKE TEMP (F) .00 88.51 92.64 89.09 LAKE INLET TEMP (F) .00 99.37 101.59 99.68 LAKE OUTLET TEMP (F) .00 89.61 93.40 90.13 TEMPERATURE FREQUENCY OF OCCURENCES 1% 5% 50%

NATURAL LAKE TEMP (F) 96.5 94.7 88.9 LAKE INLET TEMP (F) 125.0 105.5 99.3 LAKE OUTLET TEMP (F) 97.7 95.8 90.1 PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE B214 OF B358 Program LAKET-PC Page : 12 Number 03.7.292-1.0 0 Date 03/03/2000 Created Mon Oct 27 08:45:58 1997 Time 16:40:57.23 Case 0621; LaSalle UHS (Updated Worst 36-Day Temp; Ti=100.OF @2100; power uprat TOTAL CUMULATIVE

SUMMARY

QUANTITY MAXIMUM MINIMUM AVERAGE TOTAL FLOW VALUE ( DATE ) VALUE ( DATE ) VALUE (ACRE-FEET) LAKE SEEPAGE (CFS) -. 15 8051900) -. 20 7011900) -. 17 -1.24743E+01 TOTAL EVAP (CFS) -. 22 8031900) -4.59 7021900) -1.37 -9.74854E+01 NATURAL EVAP (CFS) .00 7011900) -3.39 7021900) -. 75 -5.36504E+01 FORCED EVAP (CFS) -. 22 8031900) -1.76 7011900) -. 61 -4.38350E+01 PRECIPITATION (CFS) .00 7011900) .00 7011900) .00 O.OOOOOE+00 MAKEUP (CFS) .00 7011900) .00 7011900) .00 0.OOOOOE+00 BLOWDOWN {CFS) .00 7011900) .00 7011900) .00 0.00000E+00 RUNOFF (CFS) .00 7011900) .00 7011900) .00 0.OOOOOE+00 DAM SPILL (CFS) .00 7011900) .00 7011900) .00 0.OOOOOE+00 LAKE ELEVATION (FEET) 689.99 7011900) 688.65 8051900) 689.29 4..92185E+04 DISSOLVED SOLIDS (PPM) .00 7011900) .00 7011900) .00 0.OOOOOE+00 NATURAL LAKE TEMP (F) 96.89 8031900) 82.12 7061900) 89.09 6.36119E+03 LAKE INLET TEMP (F) 133.61 7011900) 92.99 7251900) 99.68 7.11760E+03 LAKE OUTLET TEMP (F) 98.35 7011900) 83.60 7061900) 90.13 6.43604E+03 TEMPERATURE FREQUENCY OF OCCURENCES 1% 5% 50% NATURAL LAKE TEMP (F) 96.5 94.7 88.9 LAKE INLET TEMP (F) 125.0 105.5 99.3 LAKE OUTLET TEMP (F) 97.7 95.8 90.1 PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE B215 OF B358 Program : LAKET-PC Page  : 1 Number  : 03.7.292-1.0 0 Date  : 03/03/2000 Created :Mon Oct 27 08:45:58 1997 Time  : 14:22:34.64 Case 1800: LaSalle UHS (Updated Worst 36-Day Temp; Ti=100.0F @ 0000; power upra 1 2 070100 080500 1 1 3 1 20 4 1 0.2 5500. 0 5 690. 690. 1. 6 81.35 341.4 73.21 307.2 79.75 260.8 71.78 234.7 78.15 181.9 70.34 163.7 29.70 102.2 26.73 92.0 22.22 60.0 20.00 54 .0 13.42 43.8 12.08 39.4 7 1 0 8 100.0 95.5 999 FPLANT R/I 86.0 TPRISE S/I 35.26 28.79 16.68 16.28 15.32 14.97 14.53 14.29 13.88 13.45 13.30 13.30 13.30 13.24 12.73 12.73 12.57 12.43 12.24 12.02 12.02 12.02 12.02 12.01 11.49 11.49 11.49 11.49 11.49 11.49 11.49 11.49 11.09 11.07 PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE B216 OF B358 Page : 2 Program LAKET-PC Date 03/03/2000 Number 03.7.292-1.0 0 Time 14:22:34.64 Created DMonOct 27 08:45:58 1997 11.07 11.07 11.07 10.87 10.86 10.86 10.50 10.50 10.50 10.50 10 .50 10.50 10.50 10.50 10.50 10.50 10.50 10.50 10.50 10.50 10.50 10.27 9.99 9.99 9.99 9.99 9.99 9.99 9.99 9.99 9.99 9.99 9.99 9.99 9.99 9.99 9.99 9.99 9.99 9.99 9.72 9.70 9.70 9.70 9.70 9.70 9.54 9.54 9.54 9.54 9.54 PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE B217 OF B358 Program LAKET-PC Page : 3 Number  : 03.7.292-1.0 0 Date 03/03/2000 Created Mon Oct 27 08:45:58 1997 Time : 14:22:34.64 9.54 9.54 9.54 9.54 9.54 9.54 9.54 9.40 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE B218 OF B358 Program LAKET-PC Page : 4 Date 03/03/2000 Number 03.7.292-1.0 0 Time 14:22:34.64 Created Mon Oct 27 08:45:58 1997 9.19 9.19 9.15 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.72

8. 70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.52 8.49 PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE B219 OF B358 Page : 5 Program LAKET-PC Date 03/03/2000 Number  : 03.7.292-1.0 0 Time  : 14:22:34.69 Created : Mon Oct 27 08:45:58 1997 8.49 8.49 8.49 8.49 8.49 8.49 8.49 .8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE 8220 OF 8358 Program : LAKET-PC Page : 6 Number  : 03.7.292-1.0 0 Date : 03/03/2000 Created : Mom Oct 27 08:45:58 1997 Time : 14:22:34.75 8.49 8.44 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8 .22 8.22 8.22 8.22 END PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE B221 OF B358 Program : LAKET-PC Page  : 7 Number  : 03.7.292-1.0 0 Date 03/03/2000 Created :Mon Oct 27 08:45:58 1997 Time  : 14:22:35.19 Case 1800: LaSalle UHS (Updated Worst 36-Day Temp; Ti=100.OF @ 0000; power upra RUN 36 DAYS FROM 70100 TO 80500 PLOT FILE OPTION : 1 CYCLE FLAG: 1 WEATHER FILE OPTION: 1 ANEMOMETER HEIGHT 20.00 DENSITY: 62.40 SEEPAGE: .20 LAKE LENGTH: 5500.00 INITIAL LAKE ELEVATION = 690.00 DRAWDOWN CURVE ELEVATION TOTAL AREA TOTAL VOLUME EFF AREA EFF VOLUME 690.000 81.350 341.400 73.210 307.200 689.000 79.750 260.800 71,780 234.700 688.000 78.150 181.900 70.340 163.700 687.000 29,700 102.200 26.730 92.000 686.000 22.220 60.000 20.000 54.000 685.000 13.420 43.800 12.080 39.400 PLOT FILE FREQ 1 INCREMENTS AT 0 HOURS INITIAL FORCED/NATURAL LAKE TEMPS. = 100.00 95.50 WEATHER STATION ID 0. PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE B222 OF B358 Program : LAKET-PC Page  : 8 Number  : 03.7.292-1.0 0 Date  : 03/03/2000 Created Mon Oct 27 08:45:58 1997 Time 14:22:35.19 Case 1800: LaSalle UHS (Updated Worst 36-Day Temp; Ti=100.OF @ 0000; power upra FPLANT 70100 - 80500 R/I 86.000 TPRISE 70100 - 80500 s/I 35.260 28.790 16.680 16.280 15.320 14.970 14.530 14.290 13.880 13.450 13.300 13.300 13.300 13.240 12.730 12.730 12.570 12.430 12.240 12.020 12.020 12.020 12.020 12.010 11.490 11.490 11.490 11.490 11.490 11.490 11.490 11.490 11.090 11.070 11.070 11.070 11.070 10.870 10.860 10.860 10.500 10.500 10.500 10.500 10 500 10.500 10.500 10.500 1 .500 10.500 10.500 10.500 10 .500 10.500 10.500 10.270 9.990 9.990 9.990 9.990 9.990 9.990 9.990 9.990 9.990 9.990 9.990 9.990 9.990 9.990 9.990 9.990 9.990 9.990 9.720 9.700 9.700 9.700 9.700 9.700 9.540 9.540 9.540 9.540 9.540 9.540 9.540 9.540 9.540 9.540 9.540 9.540 9.400 9 .190 9.190 9.190 9.190 9 .190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.150 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8.720 8.700 8.700 8.700 8.700 8.700 8.700 8.700 8.700 8.700 8.700 8.700 8.700 8.700 8.700 8.700 8.700 8.700 8.700 8.700 PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE B223 OF B358 8.700 8.700 8.700 8 .700 8.700 8.520 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8,490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.440 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8 .220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8 .220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE B224 OF B358 Program  : LAKET-PC Page: 9 Number  : 03.7.292-1.0 0 Date : 03/03/2000 Created :Mon Oct 27 08:45:58 1997 Time : 14:22:35.35 Case 1800: LaSalle UHS (Updated Worst 36-Day Temp; Ti=100.OF Q 0000; power upra SEASONAL

SUMMARY

FOR SUMMER ( 6/1900 - 8/1900 ) QUANTITY MONTHLY AVERAGES AVERAGE JUN JUL AUG VALUE LAKE SEEPAGE (CFS) .00 -. 17 -. 14 -. 17 TOTAL EVAP (CFS) .00 -1.36 -1.26 -1.35 NATURAL EVAP (CFS) .00 -. 74 -. 70 -. 73 FORCED EVAP (CFS) .00 -. 63 -. 56 -. 62 PRECIPITATION (CFS) .00 .00 .00 .00 MAKEUP (CFS) .00 .00 .00 .00 SLOWDOWN (CFS) .00 .00 .00 .00 RUNOFF (CFS) .00 .00 .00 .00 DAM SPILL (CFS) .00 .00 .00 .00 LAKE ELEVATION (FEET) .00 689.36 688.74 689.28 DISSOLVED SOLIDS (PPM) .00 .00 .00 .00 NATURAL LAKE TEMP (F) .00 88.61 93.07 89.23 LAKE INLET TEMP (F) .00 99.28 101.79 99.63 LAKE OUTLET TEMP (F) .00 89.54 93.60 90.11 TEMPERATURE FREQUENCY OF OCCURENCES 1% 5% 50% NATURAL LAKE TEMP (F) 98.0 95.9 89.0 LAKE INLET TEMP (F) 125.0 109.3 99.2 LAKE OUTLET TEMP (F) 98.8 96.8 89.9 PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE B225 OF B358 Program  : LAKET-PC Page 10 Number 03.7.292-1.0 0 Date : 03/03/2000 Created  : Mon Oct 27 08:45:58 1997 Time 14:22:35.35 Case 1800: LaSalle UHS (Updated Worst 36-Day Temp; Ti=100.0F @ 0000; power upra CUMULATIVE SEASONAL

SUMMARY

SUMMER QUANTITY MONTHLY AVERAGES AVERAGE JUN JUL AUG VALUE LAKE SEEPAGE (CFS) .00 -. 17 -. 14 -. 17 TOTAL EVAP (CFS) .00 -1.36 -1.26 -1.35 NATURAL EVAP (CFS) .00 -. 74 -. 70 -. 73 FORCED EVAP (CFS) .00 -. 63 -. 56 -. 62 PRECIPITATION (CFS) .00 .00 .00 .00 MAKEUP (CFS) .00 .00 .00 .00 BLOWDOWN (CFS) .00 .00 .00 .00 RUNOFF (CFS) .00 .00 .00 .00 DAM SPILL (CFS) .00 .00 .00 .00 LAKE ELEVATION (FEET) .00 689.36 688.74 689.28 DISSOLVED SOLIDS (PPM) .00 .00 .00 .00 NATURAL LAKE TEMP (F) .00 88.61 93.07 89.23 LAKE INLET TEMP (F) .00 99.28 101.79 99.63 LAKE OUTLET TEMP (F) .00 89.54 93.60 90.11 TEMPERATURE FREQUENCY OF OCCURENCES 1% 5% 50%

NATURAL LAKE TEMP (F) 98.0 95.9 89.0 LAKE INLET TEMP (F) 125.0 109.3 99.2 LAKE OUTLET TEMP (F) 98.8 96.8 89.9 PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE B226 OF B358 Program  : LAKET-PC Page  : 11 Number 03.7.292-1.0 0 Date : 03/03/2000 Created Mon Oct 27 08:45:58 1997 Time  : 14:22:35.35 Case 1800: LaSalle UHS (Updated Worst 36-Day Temp; Ti=100.OF & 0000; power upra TOTAL CUMULATIVE

SUMMARY

QUANTITY MAXIMUM MINIMUM AVERAGE TOTAL FLOW VALUE f DATE ) VALUE ( DATE ) VALUE (ACRE-FEET) LAKE SEEPAGE (CFS) -. 14 8051900) -. 20 7011900) -. 17 -1.20057E+01 TOTAL EVAP (CFS) -. 19 8041900) -4.29 7021900) -1.35 -9.63174E+01 NATURAL EVAP (CFS) .00 7011900) -3.34 7031900) -. 73 -5.23042E+01 FORCED EVAP (CFS) -. 19 8041900) -1.61 7021900) -. 62 -4.40131E+01 PRECIPITATION (CFS) .00 7011900) .00 7011900) .00 0.00000E+00 MAKEUP (CFS) .00 7011900) .00 7011900) .00 0.OOOOOE+00 BLOWDOWN (CFS) .00 7011900) .00 7011900) .00 0.OOOOOE+00 RUNOFF (CFS) .00 7011900) .00 7011900) .00 0.OOOOOE+00 DAM SPILL (CFS) .00 7011900) .00 7011900) .00 0.OOOOOE+00 LAKE ELEVATION (FEET) 689.99 7011900) 688.65 8051900) 689.28 4.92177E+04 DISSOLVED SOLIDS (PPM) .00 7011900) .00 7011900) .00 0.OOOOOE+00 NATURAL LAKE TEMP (F) 98.33 8041900) 81.06 7071900) 89.23 6.37166E+03 LAKE INLET TEMP (F) 133.28 7011900) 91.90 7261900) 99.63 7.11400E+03 LAKE OUTLET TEMP (F) 99.47 7011900) 82.11 7071900) 90.11 6.43400E+03 TEMPERATURE FREQUENCY OF OCCURENCES 1% 5% 50% NATURAL LAKE TEMP (F) 98.0 95.9 89.0 LAKE INLET TEMP (F) 125.0 109.3 99.2 LAKE OUTLET TEMP (F) 98.8 96.8 89.9 PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE B227 OF B358 Program  : LAKET-PC Page : 1 Number  : 03.7.292-1.0 0 Date : 03/03/2000 Created  : Mon Oct 27 08:45:58 1997 Time 14:47:03.57 Case 1803: LaSalle UHS (Updated Worst 36-Day Temp; Ti=98.8F @ 0300; power uprat 1 2 070100 080500 1 1 3 1 20 4 1 0.2 5500. 0 5 690. 690. 1. 6 81.35 341.4 73.21 307.2 79.75 260.8 71.78 234.7 78.15 181.9 70.34 163.7 29.70 102.2 26.73 92.0 22.22 60.0 20.00 54.0 13.42 43.8 12.08 39.4 7 1 0 8 98.8 94.3 999 PPLANT R/I 86.0 TPRISE S/I 35.26 28.79 16.68 16.28 15.32 14.97 14.53 14.29 13.88 13.45 13.30 13.30 13.30 13.24 12.73 12 .73 12 .57 12.43 12.24 12.02 12.02 12.02 12.02 12.01 11.49 11.49 11.49 11.49 11.49 11.49 11.49 11.49 11.09 11.07 PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE B228 OF B358 Program LAKET-PC Page : 2 Number 03.7.292-1.0 0 Date 03/03/2000 Created :Mon Oct 27 08:45:58 1997 Time 14:47:03.57 11.07 11.07 11.07 10.87 10.86 10.86 10.50 10.50 10.50 10.50 10.50 10.50 10.50 10.50 10.50 10.50 10.50 10.50 10.50 10.50 10.50 10.27 9.99 9.99 9.99 9.99 9.99 9.99 9.99 9.99 9.99 9.99 9.99 9.99 9.99 9.99 9.99 9.99 9.99 9.99 9.72 9.70 9.70 9.70 9.70 9.70 9.54 9.54 9.54 9.54 9.54 PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE B229 OF B358 Program : LAKET-PC Page : 3 Number  : 03.7.292-1.0 0 Date : 03/03/2000 Created :Mon Oct 27 08:45:58 1997 Time 14:47:03.62 9.54 9.54 9.54 9.54 9.54 9.54 9.54 9.40 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9 .19 9.19 9.19 9.19 9.19 9.19 9.19 9 .19 9 .19 9 .19 9 .19 9 .19 9.19 9.19 9.19 9.19 9.19 PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE B230 OF B358 Program LAKET-PC Page : 4 Number 03.7.292-1.0 0 Date : 03/03/2000 Created :Mon Oct 27 08:45:58 1997 Time 14:47:03.62 9.19 9.19 9.15 8.85 8.85 8.85 8 .85 8.85 8.85 8.85. 8.85 8 .85 8.85 8.85 8.85 8.85 8.85 8.85 8 .85 8 .85 8.85 8.85 8.85 8.85 8 .72 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.52 8.49 PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE B231 OF B358 Program LAKET-PC Page  : 5 Date  : 03/03/2000 Number  : 03.7.292-1.0 0 Time 14:47:03.62 Created :Mon Oct 27 08:45:58 1997 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE B232 OF B358 Program : LAKET-PC Page : 6 Number  : 03.7.292-1.0 0 Date 03/03/2000 Created :Mon Oct 27 08:45:58 1997 Time 14:47:03.73 8.49 8.44 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 END PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE B233 OF B358 Program : LAKET-PC Page  : 7 Number 03.7.292-1.0 0 Date  : 03/03/2000 Created :Mon Oct 27 08:45:58 1997 Time  : 14:47:04.06 Case 1803: LaSalle UHS (Updated Worst 36-Day Temp; Ti=98.8F @ 0300; power uprat RUN 36 DAYS FROM 70100 TO 80500 PLOT FILE OPTION : I CYCLE FLAG: 1 WEATHER FILE OPTION: 1 ANEMOMETER HEIGHT 20.00 DENSITY: 62.40 SEEPAGE: .20 LAKE LENGTH: 5500.00 INITIAL LAKE ELEVATION = 690.00 DRAWDOWN CURVE ELEVATION TOTAL AREA TOTAL VOLUME EFF AREA EFF VOLUME 690.000 81.350 341.400 73.210 307.200 689.000 79.750 260.800 71.780 234.700 688.000 78.150 181.900 70.340 163.700 687.000 29.700 102.200 26.730 92.000 686.000 22.220 60.000 20.000 54.000 685.000 13.420 43.800 12.080 39.400 PLOT FILE FREQ 1 INCREMENTS AT 0 HOURS INITIAL FORCED/NATURAL LAKE TEMPS. = 98.80 94.30 WEATHER STATION ID 0. PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE B234 OF B358 Program LAKET-PC Page : 8 Number 03.7.292-1.0 0 Date : 03/03/2000 Created Mon Oct 27 08:45:58 1997 Time : 14:47:04.12 Case 1803: LaSalle UHS (Updated Worst 36-Day Temp; Ti=98.8F @ 0300; power uprat FPLANT 70100 - 80500 R/I 86.000 TPRISE 70100 - 80500 S/I 35.260 28.790 16.680 16.280 15.320 14.970 14.530 14.290 13.880 13.450 13.300 13.300 13.300 13.240 12.730 12.730 12.570 12.430 12.240 12.020 12.020 12.020 12.020 12.010 11.490 11.490 11.490 11.490 11.490 11.490 11.490 11.490 11.090 11.070 11.070 11.070 11.070 10.870 10.860 10.860 10.500 10.500 10.500 10.500 10.500 10.500 10.500 10.500 10.500 10.500 10.500 10.500 10.500 10.S00 10.500 10.270 9.990 9.990 9.990 9.990 9.990 9.990 9.990 9.990 9.990 9.990 9.990 9.990 9.990 9.990 9.990 9.990 9.990 9.990 9.720 9.700 9.700 9.700 9.700 9.700 9.540 9.540 9.540 9.S40 9.540 9.540 9.S40 9.540 9.540 9.540 9.540 9.540 9.400 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.150 8.850 8.850 8.850 8.8S0 8.850 8.850 8.850 8.850 8. 8S0 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8.720 8.700 8.700 8.700 8.700 8.700 8.700 8.700 8.700 8,700 8.700 8.700 8.700 8.700 8.700 8.700 8.700 8.700 8.700 8.700 PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE B235 OF B358 8.700 8 .700 8.700 8.700 8.700 8.520 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8,490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.440 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8,220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE B236 OF B358 Program  : LAKET-PC Page  : 9 Number  : 03.7.292-1.0 0 Date 03/03/2000 Created  : Mon Oct 27 08:45:58 1997 Time  : 14:47:04.23 Case 1803: LaSalle UHS (Updated Worst 36-Day Temp; Ti=98.8F @ 0300; power uprat SEASONAL

SUMMARY

FOR SUMMER ( 6/1900 - 8/1900 ) QUANTITY MONTHLY AVERAGES AVERAGE JUN JUL AUG VALUE LAKE SEEPAGE (CFS) .00 -. 17 -. 14 -. 17 TOTAL EVAP (CFS) .00 -1.36 -1.28 -1.35 NATURAL EVAP (CPS) .00 -. 73 -. 72 -. 73 FORCED EVAP (CFS) .00 -. 63 -. 56 -. 62 PRECIPITATION (CFS) .00 .00 .00 .00 MAKEUP (CFS) .00 .00 .00 .00 BLOWDOWN (CFS) .00 .00 .00 .00 RUNOFF (CFS) .00 .00 .00 .00 DAM SPILL (CFS) .00 .00 .00 .00 LAKE ELEVATION (FEET) .00 689.36 688.74 689.28 DISSOLVED SOLIDS (PPM) .00 .00 .00 .00 NATURAL LAKE TEMP (F) .00 88.58 93.08 89.21 LAKE INLET TEMP (F) .00 99.26 101.77 99.61 LAKE OUTLET TEMP (F) .00 89.52 93.57 90.08 TEMPERATURE FREQUENCY OF OCCURENCES 1% 5% 50% NATURAL LAKE TEMP (F) 98.0 95.8 89.0 LAKE INLET TEMP (F) 124.0 109.0 99.1 LAKE OUTLET TEMP (F) 99.0 96.8 89.9 PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE B237 OF B358 Program  : LAKET-PC Page  : 10 Number  : 03.7.292-1.0 0 Date  : 03/03/2000 Created Mon Oct 27 08:45:58 1997 Time  : 14:47:04.23 Case 1803: LaSalle UHS (Updated Worst 36-Day Temp; Ti=98.8F @ 0300; power uprat CUMULATIVE SEASONAL

SUMMARY

SUMMER QUANTITY MONTHLY AVERAGES AVERAGE JUN JUL AUG VALUE LAKE SEEPAGE (CFS) .00 -. 17 -. 14 -. 17 TOTAL EVAP (CFS) .00 -1.36 -1.28 -1.35 NATURAL EVAP (CFS) .00 -. 73 -. 72 -. 73 FORCED EVAP (CFS) .00 -. 63 -. 56 -. 62 PRECIPITATION (CFS) .00 .00 .00 .00 MAKEUP (CFS) .00 .00 .00 .00 BLOWDOWN (CFS) .00 .00 .00 .00 RUNOFF (CFS) .00 .00 .00 .00 DAM SPILL (CFS) .00 .00 .00 .00 LAKE ELEVATION (FEET) .00 689.36 688.74 689.28 DISSOLVED SOLIDS (PPM) .00 .00 .00 .00 NATURAL LAKE TEMP (F) .00 88.58 93.08 89.21 LAKE INLET TEMP (F) .00 99.26 101.77 99.61 LAKE OUTLET TEMP (F) .00 89.52 93.57 90.08 TEMPERATURE FREQUENCY OF OCCURENCES 1% 5% 50%

NATURAL LAKE TEMP (F) 98.0 95.8 89.0 LAKE INLET TEMP (F) 124.0 109.0 99.1 LAKE OUTLET TEMP (F) 99.0 96.8 89.9 PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE B238 OF B358 Program : LAKET-PC Page : 11 Number  : 03.7.292-1.0 0 Date : 03/03/2000 Created :Mon Oct 27 08:45:58 1997 Time 14:47:04.23 Case 1803: LaSalle UHS (Updated Worst 36-Day Temp; Ti=98.8F @ 0300; power uprat TOTAL CUMULATIVE

SUMMARY

QUANTITY MAXIMUM MINIMUM AVERAGE TOTAL FLOW VALUE ( DATE ) VALUE ( DATE ) VALUE (ACRE-FEET) LAKE SEEPAGE (CFS) -. 14 8051900) -. 20 7011900) -. 17 -1.20063E+01 TOTAL EVAP (CFS) -. 19 8041900) -4.28 7031900) -1.35 -9.63009E+01 NATURAL EVAP (CFS) .00 7011900) -3.33 7031900) -. 73 -5.23063E+01 FORCED EVAP (CFS) -. 19 8041900) -1.64 7011900) -. 62 -4.39946E+01 PRECIPITATION (CFS) .00 7011900) .00 7011900) .00 0.0O000E+00 MAKEUP (CFS) .00 7011900) .00 7011900) .00 0.OOOOOE+00 BLOWDOWN (CFS) .00 7011900) .00 7011900) .00 O.OOOOOE+00 RUNOFF (CFS) .00 7011900) .00 7011900) .00 0.OOOOOE+00 DAM SPILL (CFS) .00 7011900) .00 7011900) .00 0.OOOOOE+00 LAKE ELEVATION (FEET) 690.00 7011900) 688.65 8051900) 689.28 4.92177E+04 DISSOLVED SOLIDS (PPM) .00 7011900) .00 7011900) .00 0.00000E+00 NATURAL LAKE TEMP (F) 98.32 8041900) 81.06 7071900) 89.21 6.36976E+03 LAKE INLET TEMP (F) 132.46 7011900) 91.91 7261900) 99.61 7.11241E+03 LAKE OUTLET TEMP (F) 99.95 7011900) 82.24 7071900) 90.08 6.432S1E+03 TEMPERATURE FREQUENCY OF OCCURENCES 1% S% 50% NATURAL LAKE TEMP (F) 98.0 95.8 89.0 LAKE INLET TEMP (F) 124.0 109.0 99.1 LAKE OUTLET TEMP (F) 99.0 96.8 89.9 PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE B239 OF B358 Program LAKET-PC Page : 1 Number 03.7,292-1,0 0 Date : 03/03/2000 Created Mon Oct 27 08:45:58 1997 Time : 15:04:24.35 Case 1806: LaSalle UHS (Updated Worst 36-Day Temp; Ti=97.2F @ 0600; power uprat 1 2 070100 080500 1 1 3 1 20 4 1 0.2 5500. 0 5 690. 690. 1. 6 81.35 341.4 73.21 307.2

       *79.75   260.8    71.78   234.7 78.15    181.9    70.34   163.7 29.70    102.2    26.73   92.0 22.22    60.0     20.00   54.0 13.42    43.8     12.08   39.4 7       1        0 8       97.2     92.7 999 FPLANT  R/I      86.0 TPRISE S/I 35.26 28.79 16.68 16.28 15.32 14,97 14.53 14.29 13 .88 13.45 13.30 13.30 13.30 13.24

12. 73 12.73 12 .57 12.43 12.24 12.02 12 .02 12.02 12.02 12.01 11.49 11.49 11.49 11.49 11.49 11.49 11.49 11.49 11.09 11.07 PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE B240 OF B358 Program +/- LAKET-PC Page  : 2 Number 03.7.292-1.0 0 Date  : 03/03/2000 Created Mon Oct 27 08:45:58 1997 Time 15:04:24.40 11.07 11.07 11.07 10.87 10.86 10.86 10.50 10.50 10.50 10.50 10.50 10.50 10.50 10.50 10.50 10.50 10.50 10.50 10.50 10.50 10.50 10.27 9.99 9.99 9.99 9.99 9.99 9.99 9.99 9.99 9.99 9.99 9.99 9.99 9.99 9.99 9.99 9.99 9.99 9.99 9.72 9.70 9.70 9.70 9.70 9.70 9.54 9.54 9.54 9.54 9.54 PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE B241 OF B358 Program : LAKET-PC Page : 3 Number  : 03.7.292-1.0 0 Date 03/03/2000 Created Mon Oct 27 08:45:58 1997 Time  : 15:04:24.40 9.54 9.54 9.54 9.54 9.54 9.54 9.54 9.40 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE B242 OF B358 Program LAKET-PC Page  : 4 Number 03.7.292-1.0 0 Date 03/03/2000 Created Mon Oct 27 08:45:58 1997 Time 15:04:24.40 9.19 9.19 9.15 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.72 8.70 8.70 8.70

8. 70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.52 8.49 PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE B243 OF B358 Page : 5 Program LAKET-PC Date : 03/03/2000 Number 03.7.292-1.0 0 Time : 15:04:24.46 Created Mon Oct 27 08:45:58 1997 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE B244 OF B358 Page : 6 Program : LAKET-PC Date 03/03/2000 Number 03.7.292-1.0 0 Time : 15:04:24.51 Created : Mon Oct 27 08:45:58 1997 8.49 8.44 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8 .22 8 .22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 END PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE B245 OF B358 Program LAKET-PC Page : 7 Number  : 03.7.292-1.0 0 Date : 03/03/2000 Created :Mon Oct 27 08:45:58 1997 Time 15:04:24.73 Case 1806: LaSalle UHS (Updated Worst 36-Day Temp; Ti=97.2F @ 0600; power uprat RUN 36 DAYS FROM 70100 TO 80500 PLOT FILE OPTION : 1 CYCLE FLAG: 1 WEATHER FILE OPTION; 1 ANEMOMETER HEIGHT 20.00 DENSITY: 62.40 SEEPAGE: .20 LAKE LENGTH: 5500.00 INITIAL LAKE ELEVATION = 690.00 DRAWDOWN CURVE ELEVATION TOTAL AREA TOTAL VOLUME EFF AREA EFF VOLUME 690.000 81.350 341.400 73.210 307.200 689.000 79.750 260.800 71.780 234.700 688.000 78.150 181.900 70.340 163.700 687.000 29.700 102.200 26.730 92.000 686.000 22.220 60.000 20.000 54.000 685.000 13.420 43.800 12.080 39.400 PLOT FILE FREQ 1 INCREMENTS AT 0 HOURS INITIAL FORCED/NATURAL LAKE TEMPS. 97.20 92.70 WEATHER STATION ID 0. PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE B246 OF B358 Program LAKET-PC Page : 8 Number 03.7.292-1.0 0 Date 03/03/2000 Created :Mon Oct 27 08:45:58 1997 Time : 15:04:24.73 Case 1806: LaSalle UHS (Updated Worst 36-Day Temp; Ti=97.2F @ 0600; power uprat PPLANT 70100 - 80500 R/I 86.000 TPRISE 70100 - 80500 S/I 35.260 28.790 16.680 16.280 15.320 14.970 14.530 14.290 13.880 13.450 13.300 13.300 13 .300 13.240 12.730 12.730 12.570 12.430 12.240 12.020 12.020 12.020 12.020 12.010 11.490 11.490 11.490 11.490 11.490 11.490 11.490 11.490 11.090 11.070 11.070 11.070 11.070 10.870 10.860 10.860 10.500 10.500 10.500 10.500 10.500 10.500 10.500 10.500 10.500 10.500 10.500 10.500 10.500 10.500 10.500 10.270 9.990 9.990 9.990 9.990 9.990 9.990 9.990 9.990 9.990 9.990 9.990 9.990 9.990 9.990 9.990 9.990 9.990 9.990 9.720 9.700 9.700 9.700 9.700 9.700 9.540 9.540 9. 540 9.540 9.540 9.540 9. 540 9.540 9.540 9. 540 9.540 9.540 9.400 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9. 190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9 .190 9.190 9.190 9.190 9.190 9 .190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9 .190 9.190 9.190 9.190 9.190 9.150 8.850 8.850 8.850 8,850 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8,850 8.850 8.850 8.850 8.850 8.850 8 .850 8.850 8.850 8.850 8 .720 8.700 8.700 8.700 8.700 8.700 8.700 8.700 8 .700 8.700 8.700 8.700 8.700 8. 700 8.700 8.700 8.700 8.700 8.700 8.700 PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE B247 OF B358

8. 700 8.700 8.700 8.700 8.1700 8.520 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.440 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE B248 OF B358 Program  : LAKET-PC Page : 9 Number 03.7.292-1.0 0 Date : 03/03/2000 Created Mon Oct 27 08:45:58 1997 Time 15:04:24.90 Case 1806: LaSalle UHS (Updated Worst 36-Day Temp; Ti=97.2F @ 0600; power uprat SEASONAL

SUMMARY

FOR SUMMER ( 6/1900 - 8/1900 ) QUANTITY MONTHLY AVERAGES AVERAGE JUN JUL AUG VALUE LAKE SEEPAGE (CFS) .00 -. 17 -. 14 -. 17 TOTAL EVAP (CPS) .00 -1.36 -1.30 -1.35 NATURAL EVAP (CFS) .00 -. 73 -. 74 -. 73 FORCED EVAP (CFS) .00 -. 63 -. 55 -. 62 PRECIPITATION (CFS) .00 .00 .00 .00 MAKEUP (CFS) .00 .00 .00 .00 BLOWDOWN (CFS) .00 .00 .00 .00 RUNOFF (CFS) .00 .00 .00 .00 DAM SPILL (CFS) .00 .00 .00 LAKE ELEVATION (FEET) .00 689.36 688.74 689.28 DISSOLVED SOLIDS (PPM) .00 .00 .00 .00 NATURAL LAKE TEMP (F) .00 88.50 93.07 89.14 LAKE INLET TEMP (F) .00 99.19 101.74 99.54 LAKE OUTLET TEMP (F) .00 89.45 93.54 90.02 TEMPERATURE FREQUENCY OF OCCURENCES 1% 5% 50% NATURAL LAKE TEMP (F) 97.5 95.7 89.0 LAKE INLET TEMP (F) 126.0 107.0 99.1 LAKE OUTLET TEMP (F) 99.0 96.6 89.9 PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE B249 OF B358 Program : LAKET-PC Page 10 Number  : 03.7.292-1.0 0 Date 03/03/2000 Created :Mon Oct 27 08:45:58 1997 Time 15:04:24.90 Case 1806: LaSalle UHS (Updated Worst 36-Day Temp; Ti=97.2F @ 0600; power uprat CUMULATIVE SEASONAL

SUMMARY

SUMMER QUANTITY MONTHLY AVERAGES AVERAGE JUN JUL AUG VALUE LAKE SEEPAGE (CFS) .00 -. 17 -. 14 -. 17 TOTAL EVAP (CFS) .00 -1.36 -1.30 -1.35 NATURAL EVAP (CFS) .00 -. 73 -. 74 -. 73 FORCED EVAP (CFS) .00 -. 63 -. 55 -. 62 PRECIPITATION (CFS) .00 .00 .00 .00 MAKEUP (CFS) .00 .00 .00 .00 BLOWDOWN (CFS) .00 .00 .00 .00 RUNOFF (CFS) .00 .00 .00 .00 DAM SPILL (CFS) .00 .00 .00 .00 LAKE ELEVATION (FEET) .00 689.36 688.74 689.28 DISSOLVED SOLIDS (PPM) .00 .00 .00 .00 NATURAL LAKE TEMP (F) .00 88.50 93.07 89.14 LAKE INLET TEMP (F) .00 99.19 101.74 99.54 LAKE OUTLET TEMP (F) .00 89.45 93.54 90.02 TEMPERATURE FREQUENCY OF OCCURENCES 1% 5% 50%

NATURAL LAKE TEMP (F) 97.5 95.7 89.0 LAKE INLET TEMP (F) 126.0 107.0 99.1 LAKE OUTLET TEMP (F) 99.0 96.6 89.9 PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE B250 OF B358 Program LAKET-PC Page : 11 Number  : 03.7.292-1.0 0 Date : 03/03/2000 Created Mon Oct 27 08:4S:58 1997 Time : 15:04:24.90 Case 1806: LaSalle UHS (Updated Worst 36-Day Temp; Ti=97.2F @ 0600; power uprat TOTAL CUMULATIVE

SUMMARY

QUANTITY MAXIMUM MINIMUM AVERAGE TOTAL FLOW VALUE ( DATE ) VALUE ( DATE ) VALUE (ACRE-FEET) LAKE SEEPAGE (CFS) -. 14 8051900) -. 20 7011900) -. 17 -1.20089E+01 TOTAL EVAP (CFS) -. 19 8041900) -4.25 7031900) -1.35 -9.63718E+01 NATURAL EVAP (CFS) .00 7011900) -3.29 7031900) -. 73 -5.24012E+01 FORCED EVAP (CFS) -. 19 8041900) -1.69 7011900) -. 62 -4.39706E+01 PRECIPITATION (CPS) .00 7011900) .00 7011900) .00 0.OOOOOE+00 MAKEUP (CPS) .00 (7011900) .00 7011900) .00 0.OOOOOE+00 BLOWDOWN (CFS) .00 7011900) .00 7011900) .00 0.OOOOOE+00 RUNOFF (CPS) .00 7011900) .00 7011900) .00 0.00000E+00 DAM SPILL (CFS) .00 7011900) .00 7011900) .00 0.OOOOOE+00 LAKE ELEVATION (FEET) 690.00 7011900) 688.65 8051900) 689.28 4.92178E+04 DISSOLVED SOLIDS (PPM) .00 7011900) .00 7011900) .00 0.OOOOOE+00 NATURAL LAKE TEMP (F) 98.31 8041900) 81.03 7071900) 89.14 6.36490E+03 LAKE INLET TEMP (F) 131.22 7011900) 91.93 7261900) 99.54 7.10792E+03 LAKE OUTLET TEMP (F) 99.94 7011900) 82.08 7071900) 90.02 6.42803E+03 TEMPERATURE FREQUENCY OF OCCURENCES 1% 5% 50% NATURAL LAKE TEMP (F) 97.5 95.7 89.0 LAKE INLET TEMP (F) 126.0 107.0 99.1 LAKE OUTLET TEMP (F) 99.0 96.6 89.9 PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE B251 OF B358 Program : LAKET-PC Page  : 1 Number 03.7.292-1.0 0 Date  : 03/03/2000 Created :Mon Oct 27 08:45:58 1997 Time 15:18:40.69 Case 1809: LaSalle UHS (Updated Worst 36-Day Temp; Ti=96.SF @ 0900; power uprat 1 2 070100 080500 1 1 3 1 20 4 1 0.2 5500. 0 690. 690. I. 6 5 81.35 341.4 73.21 307.2 79.75 260.8 71.78 234.7 78.15 181.9 70.34 163.7 29.70 102.2 26.73 92.0 22.22 60.0 20.00 54.0 13.42 43.8 12.08 39.4 7 1 0 8 96.5 92.0 999 FPLANT R/I 86.0 TPRISE S/I 35.26 28.79 16.68 16.28 15.32 14.97 14.53 14.29 13.88 13.45 13.30 13.30 13.30 13.24 12.73 12.73 12.57 12.43 12.24 12.02 12.02 12.02 12.02 12.01 11.49 11.49 11.49 11.49 11.49 11.49 11.49 11.49 11.09 11.07 PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE B252 OF B358 Program :LAKET-PC Page : 2 Number 03.7.292-1.0 0 Date : 03/03/2000 Created Mon Oct 27 08:45:58 1997 Time : 15:18:40.69 11.07

11. 07 11.07 10.87 10.86 10.86 10.50 10.50 10.50 10.50 10.50 10.50 10.50 10.50 10.50 10.50 10 .50 10 .50 10 .50 10.50 10.50 10.27 9.99 9.99 9.99 9.99 9.99 9.99 9.99 9.99 9.99 9.99 9.99 9.99 9.99 9.99 9.99 9.99 9.99 9.99 9.72 9.70 9.70 9.70 9.70 9.70 9.54 9.54 9.54 9.54 9.54 PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE B253 OF B358 Program LAKET-PC Page: 3 Date : 03/03/2000 Number 03.7.292-1.0 0 Time : 15:18:40.69 Created Mon Oct 27 08:45:58 1997 9.54 9.54 9.54 9.54 9.54 9.54 9.54 9.40 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9 .19 9.19 9.19 9.19 9.19 9 .19 9.19 9.19 9.19 9.19 PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE B254 OF B358 Program LAKET-PC Page : 4 Number 03.7.292-1.0 0 Date 03/03/2000 Created :mon Oct 27 08:45:58 1997 Time 15:18:40.69 9.19 9.19 9.15 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.72 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.52 8.49 PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE B255 OF B358 Program LAKET-PC Page : 5 Number 03.7.292-1.0 0 Date 03/03/2000 Created Mon Oct 27 08:45:58 1997 Time : 15:18:40.75 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE B256 OF B358 Program LAKET-PC Page : 6 Number 03.7.292-1.0 0 Date : 03/03/2000 Created Mon Oct 27 08:45:58 1997 Time 15:18:40.80 8.49 8.44 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8 .22 8.22 8 .22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 END PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE B257 OF B358 Program : LAKET-PC Page  : 7 Number  : 03.7.292-1.0 0 Date : 03/03/2000 Created Mon Oct 27 08:45:58 1997 Time  : 15:18:41.30 Case 1809: LaSalle UHS (Updated Worst 36-Day Temp; Ti=96.SF @ 0900; power uprat RUN 36 DAYS FROM 70100 TO 80500 PLOT FILE OPTION : 1 CYCLE FLAG: 1 WEATHER FILE OPTION: 1 ANEMOMETER HEIGHT 20.00 DENSITY: 62.40 SEEPAGE: .20 LAKE LENGTH: 5500.00 INITIAL LAKE ELEVATION = 690.00 DRAWDOWN CURVE ELEVATION TOTAL AREA TOTAL VOLUME EFF AREA EFF VOLUME 690.000 81.350 341.400 73.210 307.200 689.000 79.750 260.800 71.780 234.700 688.000 78.150 181.900 70.340 163.700 687.000 29.700 102.200 26.730 92.000 686.000 22.220 60.000 20.000 54.000 685.000 13.420 43.800 12.080 39.400 PLOT FILE FREQ 1 INCREMENTS AT 0 HOURS INITIAL FORCED/NATURAL LAKE TEMPS. = 96.50 92.00 WEATHER STATION ID 0. PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE B258 OF B358 Program LAKET-PC Page : 8 NUmber 03.7.292-1.0 0 Date : 03/03/2000 Created Mon Oct 27 08:45:58 1997 Time 15:18:41.30 Case 1809: LaSalle UHS (Updated Worst 36-Day Temp; Ti=96.5F @ 0900; power uprat FPLANT 70100 - 80500 R/I 86.000 TPRISE 70100 - 80500 S/1 35.260 28.790 16.680 16.280 15.320 14.970 14.530 14.290 13.880 13.450 13.300 13.300 13.300 13.240 12.730 12.730 12.570 12.430 12.240 12.020 12.020 12.020 12.020 12.010 11.490 11.490 11.490 11.490 11.490 11,490 11.490 11.490 11.090 11.070 11.070 11.070 11.070 10.870 10.860 10.860 10.500 10.500 10.500 10.500 10.500 10.500 10.500 10.500 10.500 10.500 10.500 10.500 10.500 10.500 10.500 10.270 9.990 9.990 9.990 9.990 9.990 9.990 9.990 9.990 9.990 9.990 9.990 9.990 9.990 9.990 9.990 9.990 9.990 9.990 9.720 9.700 9.700 9.700 9.700 9.700 9.540 9.540 9.540 9.540 9.540 9.540 9.540 9.540 9.540 9.540 9.540 9.540 9.400 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9 .190 9.190 9.190 9.190 9.190 9.190 9.190 9.190

9. 190 9.190 9,190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9,190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.150 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8.720 8.700 8.700 8.700 8.700 8.700 8.700 8.700 8.700 8.700 8.700 8.700 8.700 8.700 8.700 8.700 8.700 8.700 8.700 8.700 PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE B259 OF B358 8.700 8.700 8. 700 8.700 8.700 8.520 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.440 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE B260 OF B358 Program LAKET-PC Page : 9 Number  : 03.7.292-1.0 0 Date : 03/03/2000 Created Mon Oct 27 08:45:58 1997 Time : 15:18:41.46 Case 1809: LaSalle UHS (Updated Worst 36-Day Temp; Ti=96.5F @ 0900; power uprat SEASONAL

SUMMARY

FOR SUMMER ( 6/1900 - 8/1900 1 QUANTITY MONTHLY AVERAGES AVERAGE JUN JUL AUG VALUE LAKE SEEPAGE (CFS) .00 -. 17 -. 14 -. 17 TOTAL EVAP (CFS) .00 -1.36 -1.31 -1.35 NATURAL EVAP (CFS) .00 -. 73 -. 76 -. 74 FORCED EVAP (CFS) .00 -. 63 -. 55 -. 62 PRECIPITATION (CFS) .00 .00 .00 .00 MAKEUP (CFS) .00 .00 .00 .00 BLOWDOWN (CFS) .00 .00 .00 .00 RUNOFF (CFS) .00 .00 .00 .00 DAM SPILL (CFS) .00 .00 .00 .00 LAKE ELEVATION (FEET) .00 689.36 688.74 689.28 DISSOLVED SOLIDS (PPM) .00 .00 .00 .00 NATURAL LAKE TEMP (F) .00 88.47 93.03 89.10 LAKE INLET TEMP (F) .00 99.16 101.68 99.51 LAKE OUTLET TEMP (F) .00 89.43 93.49 89.99 TEMPERATURE FREQUENCY OF OCCURENCES 1% 5% 50% NATURAL LAKE TEMP (F) 97.0 95.6 88.9 LAKE INLET TEMP (F) 128.0 106.7 99.1 LAKE OUTLET TEMP (F) 99.0 96.6 89.8 PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE B261 OF B358 Program  : LAKET-PC Page : 10 Number 03.7.292-1.0 0 Date 03/03/2000 Created :Mon Oct 27 08:45:58 1997 Time : 15:18:41.46 Case 1809: LaSalle UHS (Updated Worst 362Day Temp; Ti=96.SF @ 0900; power uprat CUMULATIVE SEASONAL

SUMMARY

SUMMER QUANTITY MONTHLY AVERAGES AVERAGE JUN JUL AUG VALUE LAKE SEEPAGE (CFS) .00 -. 17 -. 14 -. 17 TOTAL EVAP (CFS) .00 -1.36 -1.31 -1.35 NATURAL EVAP (CFS) .00 -. 73 -. 76 -. 74 FORCED EVAP (CFS) .00 -. 63 -. 55 -. 62 PRECIPITATION (CFS) .00 .00 .00 .00 MAKEUP (CFS) .00 .00 .00 .00 BLOWDOWN (CFS) .00 .00 .00 .00 RUNOFF (CFS) .00 .00 .00 .00 DAM SPILL (CFS) .00 .00 .00 .00 LAKE ELEVATION (FEET) .00 689.36 688.74 689.28 DISSOLVED SOLIDS (PPM) .00 .00 .00 .00 NATURAL LAKE TEMP (F) .00 88.47 93.03 89.10 LAKE INLET TEMP (F) .00 99.16 101.68 99.51 LAKE OUTLET TEMP (F) .00 89.43 93.49 89.99 TEMPERATURE FREQUENCY OF OCCURENCES 1% 5% 50%

NATURAL LAKE TEMP (F) 97.0 95.6 88.9 LAKE INLET TEMP (F) 128.0 106.7 99.1 LAKE OUTLET TEMP (F) 99.0 96.6 89.8 PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE B262 OF B358 Program LAKET-PC Page  : 11 Number 03.7.292-1.0 0 Date 03/03/2000 Created Mon Oct 27 08:45:58 1997 Time  : 15:18:41.46 Case 1809: LaSalle UHS (Updated Worst 36-Day Temp; Ti=96.5F @ 0900; power uprat TOTAL CUMULATIVE

SUMMARY

QUANTITY MAXIMUM MINIMUM AVERAGE TOTAL FLOW VALUE ( DATE ) VALUE ( DATE ) VALUE (ACRE-FEET) LAKE SEEPAGE (CFS) -. 14 8051900) -. 20 7011900) -. 17 -1.20097E+01 TOTAL EVAP (CFS) -. 19 8041900) -4.29 7031900) -1.35 -9.64773E+01 NATURAL EVAP (CFS) .00 7011900) -3.28 7031900) -. 74 -5.25177E+01 FORCED EVAP (CFS) -. 19 8041900) -1.71 7011900) -. 62 -4.39596E+01 PRECIPITATION (CFS) .00 7011900) .00 7011900) .00 0.OOOOOE+00 MAKEUP (CFS) .00 7011900) .00 7011900) .00 O.OOOOOE+00 BLOWDOWN (CFS) .00 7011900) .00 7011900) .00 0.OOOOOE+00 RUNOFF (CFS) .00 7011900) .00 7011900) .00 0.OOOOOE+00 DAM SPILL (CFS) .00 7011900) .00 7011900) .00 0.OOOOOE+00 LAKE ELEVATION (FEET) 690.00 7011900) 688.65 8051900) 689.28 4.92178E+04 DISSOLVED SOLIDS (PPM) .00 7011900) .00 7011900) .00 0.OOOOOE+00 NATURAL LAKE TEMP (F) 98.30 8041900) 81.03 7061900) 89.10 6.36216E+03 LAKE INLET TEMP (F) 132.78 7011900) 91.95 7251900) 99.51 7.10574E+03 LAKE OUTLET TEMP (F) 99.98 7011900) 82.15 7061900) 89.99 6.42586E+03 TEMPERATURE FREQUENCY OF OCCURENCES 1% 5% 50% NATURAL LAKE TEMP (F) 97.0 95.6 88.9 LAKE INLET TEMP (F) 128.0 106.7 99.1 LAKE OUTLET TEMP (F) 99.0 96.6 89.8 PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE B263 OF B358 Program LAKET-PC Page : 1 Number 03.7.292-1.0 0 Date : 03/07/2000 Created Mon Oct 27 08:45:58 1997 Time : 17:35:13.43 Case 1809: LaSalle UHS (Updated worst 5/1/30-Day Temp; Ti=96.5F @ 0900; power u 1 2 070100 080500 1 1 3 1 20 4 1 0.2 5500. 0 5 690. 690. 1. 6 81.35 341.4 73.21 307.2 79.75 260.8 71.78 234.7 78.15 181.9 70.34 163.7 29.70 102.2 26.73 92.0 22.22 60.0 20.00 54.0 13.42 43.8 12.08 39.4 7 1 0 8 96.5 92.0 999 FPLANT R/I 86.0 TPRISE S/I 35.26 28.79 16.68 16.28 15.32 14 .97 14.53 14.29 13.88 13.45 13 .30 13 .30 13 .30 13 .24 12.73 12.73 12 .57 12.43 12.24 12.02 12.02 12.02 12 .02 12 .01 11.49 11.49 11.49 11.49 11.49 11.49 11.49 11.49 11.09 11.07 PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE B264 OF B358 Program LAKET-PC Page  : 2 Date 03/07/2000 Number 03.7.292-1.0 0 Time  : 17:35:13.49 Created Mon Oct 27 08:45:58 1997 11.07 11.07 11.07 10.87 10.86 10.86 10.50 10.50 10.50 10.50 10.50 10.50 10.50 10.50 10.50 10.50 10.50 10.50 10.50 10.50 10.50 10.27 9.99 9.99 9.99 9.99 9.99 9.99 9.99 9.99 9.99 9.99 9.99 9.99 9.99 9.99 9.99 9.99 9.99 9.99 9.72 9.70 9.70 9.70 9.70 9.70 9.54 9.54 9.54 9.54 9.54 PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE B265 OF B358 Program LAKET-PC Page : 3 Number 03.7.292-1.0 0 Date 03/07/2000 Created Mon Oct 27 08:45:58 1997 Time 17:35:13.49 9.54 9.54 9.54 9.54 9.54 9.54 9.54 9.40 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE B266 OF B358 Program : LAKET-PC Page  : 4 Date 03/07/2000 Number  : 03.7.292-1.0 0 Mon Oct 27 08:45:58 1997 Time 17:35:13.49 Created 9.19 9.19 9.15 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8 .72 8.70 8 .70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.52 8.49 PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE B267 OF B358 Program : LAKET-PC Page  : 5 Number  : 03.7.292-1.0 0 Date  : 03/07/2000 Created Mon Oct 27 08:45:58 1997 Time  : 17:35:13.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE B268 OF B358 Program : LAKET-PC Page 6 Number  : 03.7.292-1.0 0 Date  : 03/07/2000 Created :Mon Oct 27 08:45:58 1997 Time  : 17:35:13.54 8.49 8 .44 8 .22 8 .22 8.22 8.22 8 .22 8 .22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8 .22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8 .22 8 .22 8.22 8.22 8 .22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 END PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE B269 OF B358 Program LAKET-PC Page 7 Number  : 03.7.292-1.0 0 Date : 03/07/2000 Created :Mon Oct 27 08:45:58 1997 Time : 17:35:14.04 Case 1809: LaSalle UHS (Updated Worst 5/1/30-Day Temp; Ti=96.SF 0 0900; power u RUN 36 DAYS FROM 70100 TO 80500 PLOT FILE OPTION : 1 CYCLE FLAG: 1 WEATHER FILE OPTION: 1 ANEMOMETER HEIGHT 20.00 DENSITY: 62.40 SEEPAGE: .20 LAKE LENGTH: 5500.00 INITIAL LAKE ELEVATION = 690.00 DRAWDOWN CURVE ELEVATION TOTAL AREA TOTAL VOLUME EFF AREA EFF VOLUME 690.000 81.350 341.400 73.210 307.200 689.000 79.750 260.800 71.780 234.700 688.000 78.150 181.900 70.340 163.700 687.000 29.700 102.200 26.730 92.000 686.000 22.220 60.000 20.000 54,000 685.000 13.420 43.800 12.080 39.400 PLOT FILE FREQ 1 INCREMENTS AT 0 HOURS INITIAL FORCED/NATURAL LAKE TEMPS. = 96.50 92.00 WEATHER STATION ID 0. PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE B270 OF B358 Program : LAKET-PC Page : 8 N*umber  : 03.7.292-1.0 0 Date 03/07/2000 Created Mon Oct 27 08:45:58 1997 Time : 17:35:14.04 Case 1809: LaSalle UHS (Updated Worst 5/1/30-Day Temp; Ti=96.5F @ 0900; power u PPLANT 70100 - 80500 R/I 86.000 TPRISE 70100 - 80500 S/I 35.260 28.790 16.680 16.280 15.320 14.970 14.530 14.290 13.880 13.450 13.300 13.300 13.300 13.240 12.730 12.730 12.570 12.430 12.240 12.020 12.020 12.020 12.020 12.010 11.490 11.490 11.490 11.490 11.490 11.490 11.490 11.490 11.090 11.070 11.070 11.070 11.070 10.870 10.860 10.860 10.500 10.500 10.500 10.500 10.500 10.500 10.500 10.500 10 .500 10.500 10.500 10.500 10.500 10.500 10.500 10.270 9.990 9.990 9.990 9.990 9.990 9.990 9.990 9.990 9.990 9.990 9.990 9.990 9.990 9.990 9.990 9.990 9.990 9.990 9.720 9.700 9.700 9.700 9.700 9.700 9.540 9.540 9.540 9.540 9.540 9.540 9.540 9.540 9.540 9.540 9.540 9.540 9.400 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9 .190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.150 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8 .850 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8.720 8.700 8.700 8.700 8.700 8.700 8.700 8.700 8.700 8.700 8.700 8.700 8 700 8.700 8.700 8.700 8.700 8.700 8.700 8.700 PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE B271 OF B358 8.700 8.700 8.700 8.700 8.700 8.520 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.440 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8 .220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE B272 OF 8358 Program  : LAKET-PC Page : 9 Number  : 03.7.292-1.0 0 Date 03/07/2000 Created Mon Oct 27 08:45:58 1997 Time : 17:35:14.20 Case 1809: LaSalle UHS (Updated Worst 5/1/30-Day Temp; Ti=96.SF @ 0900; power u SEASONAL

SUMMARY

FOR SUMMER ( 6/1900 - 8/1900 ) QUANTITY MONTHLY AVERAGES AVERAGE JUN JUL AUG VALUE LAKE SEEPAGE (CFS) .00 -. 17 -. 14 -. 16 TOTAL EVAP (CFS) .00 -1.59 -1.32 -1.55 NATURAL EVAP (CFS) .00 -. 95 -. 76 -. 92 FORCED EVAP (CFS) .00 -. 65 -. 56 -. 63 PRECIPITATION (CFS) .00 .00 .00 .00 MAKEUP (CFS) .00 .00 .00 .00 BLOWDOWN (CFS) .00 .00 .00 .00 RUNOFF (CPS) .00 .00 .00 .00 DAM SPILL (CPS) .00 .00 .00 .00 LAKE ELEVATION (FEET) .00 689.29 688.56 689.19 DISSOLVED SOLIDS (PPM) .00 .00 .00 .00 NATURAL LAKE TEMP (F) .00 90.65 89.93 90.55 LAKE INLET TEMP (F) .00 101.11 98.69 100.77 LAKE OUTLET TEMP (F) .00 91.37 90.65 91.27 TEMPERATURE FREQUENCY OF OCCURENCES 1% 5% 50% NATURAL LAKE TEMP (F) 97.8 96.2 90.8 LAKE INLET TEMP (F) 127.0 109.3 100.7 LAKE OUTLET TEMP (F) 99.0 97.3 91.5 PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE B273 OF B358 Program  : LAKET-PC Page 10 Number  : 03.7.292-1.0 0 Date  : 03/07/2000 Created Mon Oct 27 08:45:58 1997 Time  : 17:35:14.20 Case 1809: LaSalle UHS (Updated Worst 5/1/30-Day Temp; Ti=96.5F @ 0900; power u CUMULATIVE SEASONAL

SUMMARY

SUMMER QUANTITY MONTHLY AVERAGES AVERAGE JUN JUL AUG VALUE LAKE SEEPAGE (CPS) .00 -. 17 -. 14 -. 16 TOTAL EVAP (CFS) .00 -1.59 -1.32 -1.55 NATURAL EVAP (CPS) .00 -. 95 -. 76 -. 92 FORCED EVAP (CPS) .00 -. 65 -. 56 -. 63 PRECIPITATION (CrS) .00 .00 .00 .00 MAKEUP (CFS) .00 .00 .00 .00 BLOWDOWN (CrS) .00 .00 .00 .00 RUNOFF (CFS) .00 .00 .00 .00 DAM SPILL (CrS) .00 .00 .00 .00 LAKE ELEVATION (FEET) .00 689.29 688.56 689.19 DISSOLVED SOLIDS (PPM) .00 .00 .00 .00 NATURAL LAKE TEMP (F) .00 90.65 89.93 90.55 LAKE INLET TEMP (F) .00 101.11 98.69 100.77 LAKE OUTLET TEMP (F) .00 91.37 90.65 91.27 TEMPERATURE FREQUENCY OF OCCURENCES 1% 5% 50%

NATURAL LAKE TEMP (F) 97.8 96.2 90.8 LAKE INLET TEMP (F) 127.0 109.3 100.7 LAKE OUTLET TEMP (F) 99.0 97.3 91.5 PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE B274 OF B358 Program LAKET-PC Page : 11 Number 03.7.292-1.0 0 Date : 03/07/2000 Created : Mon Oct 27 08:45:58 1997 Time : 17:35:14.20 Case 1809: LaSalle UHS (Updated Worst 5/1/30-Day Temp; Ti=96.5F 0 0900; power u TOTAL CUMULATIVE

SUMMARY

.....................                      MAXI........

UM.....M......I...... M....AVERA.........E...TOTAL............ LOW... QUANTITY MAXIMUM MINIMUM AVERAGE TOTAL FLOW VALUE ( DATE ) VALUE ( DATE ) VALUE (ACRE-FEET) LAKE SEEPAGE (CFS) .13 8051900) -. 20 7011900) -. 16 -1.17357E+01 TOTAL EVAP (CFS) .24 8051900) -4.05 7051900) -1.55 -1.10956E+02 NATURAL EVAP (CFS) .00 7031900) -2.67 7051900) -. 92 -6.57451E+01 FORCED EVAP (CFS) .23 7311900) -1.56 7011900) -63 -4.52110E+01 PRECIPITATION (CFS) .00 7011900) .00 7011900) .00 0.OOOOOE+00 MAKEUP (CFS) .00 7011900) .00 7011900) .00 O.OOOOOE+00 BLOWDOWN (CFS) .00 7011900) .00 7011900) .00 O.OOOOOE+00 RUNOFF (CFS) .00 7011900) .00 7011900) .00 0.OOOOOE+00 DAM SPILL (CFS) .00 7011900) .00 7011900) .00 O.OOOOOE+00 LAKE ELEVATION (FEET) 689.99 7011900) 688.47 8051900) 689.19 4.92117E+04 DISSOLVED SOLIDS (PPM) .00 7011900) .00 7011900) .00 0.OOOOOE+00 NATURAL LAKE TEMP (F) 98.25 7041900) 80.47 7241900) 90.55 6.46545E+03 LAKE INLET TEMP (F) 132.14 7011900) 89.64 7241900) 100.77 7.19565E+03 LAKE OUTLET TEMP (F) 99.79 7011900) 81.38 7241900) 91.27 6.51731E+03 TEMPERATURE FREQUENCY OF OCCURENCES 1% 5% 50% NATURAL LAKE TEMP (F) 97.8 96.2 90.8 LAKE INLET TEMP (F) 127.0 109.3 100.7 LAKE OUTLET TEMP (F) 99.0 97.3 91.5 PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE B275 OF B358 Program :LAKET-PC Page : 1 Number  : 03.7.292-1.0 0 Date : 03/06/2000 Created :Mon Oct 27 08:45:58 1997 Time : 11:31:44.61 Case 1812: LaSalle UHS (Updated Worst 5/1/30-Day Temp; Ti=97.SF @ 1200; power u 1 2 070100 080500 1 1 3 1 20 4 1 0.2 5500. 0 5 690. 690. 1. 6 81.35 341.4 73.21 307.2 79.75 260.8 71.78 234.7 78.15 181.9 70.34 163.7 29.70 102.2 26 .73 92.0 22.22 60.0 20.00 54.0 13.42 43.8 12 .08 39.4 7 1 0 8 97.5 93.0 999 FPLAWT R/I 86.0 TPRISE s/I 35.26 28.79 16.68 16.28 15.32 14.97 14.53 14.29 13.88 13.45 13.30 13.30 13.30 13.24 12.73 12.73 12.57 12.43 12.24 12.02 12.02 12.02 12.02 12.01 11.49 11.49 11.49 11.49 11.49 11.49 11.49 11.49 11.09 11.07 PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE B276 OF B358 Program LAKET-PC Page : 2 Number  : 03.7.292-1.0 0 Date : 03/06/2000 Created :Mon Oct 27 08:45:58 1997 Time : 11:31:44.61 11.07 11.07 11.07 10.87 10.86 10,86 10.50 10.50 10.50 10.50 10.50 10.50 10.50 10.50 10.50 10.50 10.50 10.50 10.50 10.50 10.50 10.27 9.99 9.99 9.99 9.99 9.99 9.99 9.99 9.99 9.99 9.99 9.99 9.99 9.99 9.99 9.99 9.99 9.99 9.99 9.72 9.70 9.70 9.70 9.70 9.70 9.54 9.54 9.54 9.54 9.54 PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE B277 OF B358 Program : LAKET-PC Page  : 3 Date  : 03/06/2000 Number  : 03.7.292-1.0 0 Time  : 11:31:44.61 Created Mon Oct 27 08:45:58 1997 9.54 9.54 9.54 9.54 9.54 9.54 9.54 9.40 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE B278 OF B358 Program : LAKET-PC Page : 4 Date 03/06/2000 Number 03.7.292-1.0 0 1997 Time 11:31:44.61 Created Mon Oct 27 08:45:58 9.19 9.19 9.15 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.72 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.52 8.49 PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE B279 OF B358 Program : LAKET-PC Page : 5 03.7.292-1.0 0 Date : 03/06/2000 Number Created mon Oct 27 08:45:58 1997 Time 11:31:44.61 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE B280 OF B358 Program LAKET-PC Page : 6 Number 03.7.292-1.0 0 Date : 03/06/2000 Created :Mon Oct 27 08:45:58 1997 Time : 11:31:44.66 8.49 8.44 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 END PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE B281 OF B358 Program  : LAKET-PC Page : 7 Number  : 03.7.292-1.0 0 Date : 03/06/2000 Created :Mon Oct 27 08:45:58 1997 Time 11:31:44.94 Case 1812: LaSalle UHS (Updated Worst 5/1/30-Day Temp; Ti=97.SF 0 1200; power u RUN 36 DAYS FROM 70100 TO 80500 PLOT FILE OPTION : 1 CYCLE FLAG: 1 WEATHER FILE OPTION: 1 ANEMOMETER HEIGHT 20.00 DENSITY: 62.40 SEEPAGE: .20 LAKE LENGTH: 5500.00 INITIAL LAKE ELEVATION = 690.00 DRAWDOWN CURVE ELEVATION TOTAL AREA TOTAL VOLUME EFF AREA EFF VOLUME 690.000 81.350 341.400 73.210 307.200 689.000 79.750 260.800 71.780 234.700 688.000 78.150 181.900 70.340 163.700 687.000 29.700 102.200 26.730 92.000 686.000 22.220 60.000 20.000 54.000 685.000 13.420 43.800 12.080 39.400 PLOT FILE FREQ 1 INCREMENTS AT 0 HOURS INITIAL FORCED/NATURAL LAKE TEMPS. = 97.50 93.00 WEATHER STATION ID 0. PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE B282 OF B358 Program : LAKET-PC Page : 8 Number  : 03.7.292-1.0 0 Date 03/06/2000 Created :Mon Oct 27 08:45:58 1997 Time 11:31:44.94 Case 1812: LaSalle UHS (Updated Worst 5/1/30-Day Temp; Ti=97.5F @ 1200; power u FPLANT 70100 - 80500 R/I 86.000 TPRISE 70100 - 80500 s/I 35.260 28.790 16.680 16.280 15.320 14.970 14.530 14.290 13.880 13.450 13.300 13.300 13.300 13.240 12.730 12.730 12.570 12.430 12.240 12.020 12.020 12.020 12.020 12.010 11.490 11.490 11.490 11.490 11.490 11.490 11.490 11.490 11.090 11.070 11.070 11.070 11.070 10.870 10.860 10.860 10.500 10.500 10.500 10.500 10.500 10.500 10.500 10.500 10.500 10.500 10.500 10.500 10.500 10.500 10.500 10.270 9.990 9.990 9.990 9.990 9.990 9.990 9.990 9.990 9.990 9.990 9.990 9.990 9.990 9.990 9.990 9.990 9.990 9.990 9.720 9.700 9.700 9.700 9.700 9.700 9.540 9.540 9.540 9.540 9.540 9.540 9.540 9.540 9.540 9.540 9.540 9.540 9.400 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.150 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8.720 8.700 8.700 8.700 8.700 8.700 8.700 8.700 8.700 8.700 8.700 8.700 8.700 8.700 8.700 8.700 8.700 8.700 8.700 8.700 PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE B283 OF B358 8.700 8.700 8.700 8.700 8.700 8.520 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.440 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE B284 OF B358 Program : LAKET-PC Page: 9 Number  : 03.7.292-1.0 0 Date : 03/06/2000 Created :Mon Oct 27 08:45:58 1997 Time : 11:31:45.10 Case 1812: LaSalle UHS (Updated Worst 5/1/30-Day Temp; Ti=97.SF @ 1200; power u SEASONAL

SUMMARY

FOR SUMMER ( 6/1900 - 8/1900 ) QUANTITY MONTHLY AVERAGES AVERAGE JUN JUL AUG VALUE LAKE SEEPAGE (CFS) .00 -. 17 -. 14 -. 16 TOTAL EVAP (CFS) .00 -1.60 -1.32 -1.56 NATURAL EVAP (CFS) .00 -. 95 -. 76 -. 92 FORCED EVAP (CFS) .00 -. 65 -. 56 -. 63 PRECIPITATION (CFS) .00 .00 .00 .00 MAKEUP (CFS) .00 .00 .00 .00 BLOWDOWN (CFS) .00 .00 .00 .00 RUNOFF (CFS) .00 .00 .00 .00 DAM SPILL (CFS) .00 .00 .00 .00 LAKE ELEVATION (FEET) .00 689.29 688.56 689.19 DISSOLVED SOLIDS (PPM) .00 .00 .00 .00 NATURAL LAKE TEMP (F) .00 90.68 89.93 90.57 LAKE INLET TEMP (F) .00 101.14 98.69 100.80 LAKE OUTLET TEMP (F) .00 91.40 90.65 91.29 TEMPERATURE FREQUENCY OF OCCURENCES 1% 5% 50% NATURAL LAKE TEMP (F) 97.8 96.0 90.9 LAKE INLET TEMP (F) 128.0 109.1 100.7 LAKE OUTLET TEMP (F) 99.3 97.3 91.5 PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE B285 OF B358 Program : LAKET-PC Page  : 10 Number  : 03.7.292-1.0 0 Date 03/06/2000 Created :Mon Oct 27 08:45:58 1997 Time  : 11:31:45.10 Case 1812: LaSalle UHS (Updated Worst 5/1/30-Day Temp; Ti=97.SF @ 1200; power u CUMULATIVE SEASONAL

SUMMARY

SUMMER QUANTITY MONTHLY AVERAGES AVERAGE JUN JUL AUG VALUE LAKE SEEPAGE (CFS) .00 -. 17 -. 14 -. 16 TOTAL EVAP (CFS) .00 -1.60 -1.32 -1.56 NATURAL EVAP (CFS) .00 -. 95 -. 76 -. 92 FORCED EVAP (CFS) .00 -. 65 -. 56 -. 63 PRECIPITATION (CFS) .00 .00 .00 .00 MAKEUP (CFS) .00 .00 .00 .00 BLOWDOWN )CFS) .00 .00 .00 .00 RUNOFF (CFS)" .00 .00 .00 .00 DAM SPILL (CFS) .00 .00 .00 .00 LAKE ELEVATION (FEET) .00 689.29 688.56 689.19 DISSOLVED SOLIDS (PPM) .00 .00 .00 .00 NATURAL LAKE TEMP (F) .00 90.68 89.93 90.57 LAKE INLET TEMP (F) .00 101.14 98.69 100.80 LAKE OUTLET TEMP (F) .00 91.40 90.65 91.29 TEMPERATURE FREQUENCY OF OCCURENCES 1% 5% 50%

NATURAL LAKE TEMP (F) 97.8 96.0 90.9 LAKE INLET TEMP (F) 128.0 109.1 100.7 LAKE OUTLET TEMP (F) 99.3 97.3 91.5 PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE 8286 OF B358 Program LAKET-PC Page : 11 Number  : 03.7.292-1.0 0 Date 03/06/2000 Created Mon Oct 27 08:45:58 1997 Time 11:31:45.10 Case 1812: LaSalle UHS (Updated Worst 5/1/30-Day Temp; Ti=97.SF @ 1200; power u TOTAL CUMULATIVE

SUMMARY

QUANTITY MAXIMUM MINIMUM AVERAGE TOTAL FLOW VALUE ( DATE ) VALUE ( DATE ) VALUE (ACRE-FEET) LAKE SEEPAGE (CFS) -. 13 8051900) -. 20 7011900) -. 16 -1.17287E+01 TOTAL EVAP (CFS) -. 24 8051900) -4.04 7051900) -1.56 -1.11183E+02 NATURAL EVAP (CFS) .00 7031900) -2.66 7051900) -. 92 -6.S9592E+01 FORCED EVAP (CFS) -. 23 7311900) -1.67 7011900) -. 63 -4.52236E+01 PRECIPITATION (CFS) .00 7011900) .00 7011900) .00 0.00000E+00 MAKEUP (CFS) .00 7011900) .00 7011900) .00 0.OOOOOE+00 BLOWDOWN (CFS) .00 7011900) .00 7011900) .00 0.OOOOOE+00 RUNOFF (CFS) .00 7011900) .00 7011900) .00 0.OOOOOE+00 DAM SPILL (CFS) .00 7011900) .00 7011900) .00 0.OOOOOE+00 LAKE ELEVATION (FEET) 689.99 7011900) 688.46 8051900) 689.19 4.92115E+04 DISSOLVED SOLIDS (PPM) .00 7011900) .00 7011900) .00 0.OOOOOE+00 NATURAL LAKE TEMP (F) 98.22 7041900) 80.47 7241900) 90.57 6.46728E+03 LAKE INLET TEMP (F) 134.65 7011900) 89.64 7241900) 100.80 7.19739E+03 LAKE OUTLET TEMP (F) 99.98 7011900) 81.37 7241900) 91.29 6.51890E+03 TEMPERATURE FREQUENCY OF OCCURENCES 1% 5% 50% NATURAL LAKE TEMP (F) 97.8 96.0 90.9 LAKE INLET TEMP (F) 128.0 109.1 100.7 LAKE OUTLET TEMP (F) 99.3 97.3 91.5 PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE B287 OF B358 Program LAKET-PC Page : 1 Number 03.7.292-1.0 0 Date : 03/06/2000 Created Mon Oct 27 08:45:58 1997 Time : 13:09:44.55 Case i8 15: LaSalle UHS (Updated Worst 5/1/30-Day Temp; Ti=99.4F @ 1500; power u 1 2 070100 080500 1 1 3 1 20 4 1 0.2 5500. 0 5 690. 690. 1. 6 81.35 341.4 73.21 307.2 79.75 260.8 71.78 234.7 78.15 181.9 70.34 163.7 29.70 102. 2 26.73 92.0 22.22 60.0 20.00 54.0 13.42 43.8 12.08 39.4 7 1 0 8 99.4 94.9 999 FPLANT R/I 86.0 TPRISE S/I 35.26 28.79 16.68 16.28 15.32 14.97 14.53 14.29 13.88 13.45 13.30 13.30 13.30 13.24 12.73 12.73 12.57 12.43 12.24 12.02 12.02 12.02 12.02 12.01 11.49 11.49 11.49 11.49 11.49 11.49 11.49 11.49 11.09 11.07 PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE B288 OF B358 Program LAKET-PC Page : 2 Number 03.7.292-1.0 0 Date : 03/06/2000 Created Mon Oct 27 08:45:58 1997 Time : 13:09:44.55 11.07 11.07 11.07 10.87 10.86 10.86 10.50 10.50 10.50 10.50 10.50 10.50 10.50 10.50 10.50 10.50 10.50 10.50 10.50 10.50 10.50 10.27 9.99 9.99 9.99 9.99 9.99 9.99 9.99 9.99 9.99 9.99 9.99 9.99 9.99 9.99 9.99 9.99 9.99 9.99 9 .72 9.70 9.70 9.70 9.70 9.70 9.54 9.54 9.54 9.54 9.54 PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE B289 OF B358 Program LAKET-PC Page  : 3 Number 03.7.292-1.0 0 Date 03/06/2000 Created :Mon Oct 2? 08:45:58 1997 Time 13:09:44.55 9.54 9.54 9.54 9.54 9.54 9.54 9.54 9.40 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE B290 OF B358 Program LAKET-PC Page 4 Number 03.7.292-1.0 0 Date  : 03/06/2000 Created :Mon Oct 27 08:45:58 1997 Time  : 13:09:44.55 9.19 9.19 9.15 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.72 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.52 8.49 PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE B291 OF B358 Program LAKET-PC Page : 5 Number  : 03.7.292-1.0 0 Date : 03/06/2000 Created :Mon Oct 27 08:45:58 1997 Time : 13:09:44.55 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8 .49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE 8292 OF B358 Program : LAKET-PC Page : 6 Number  : 03.7.292-1.0 0 Date : 03/06/2000 Created :Mon Oct 27 08:45:58 1997 Time 13:09:44.66 8.49 8.44 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8 .22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 END PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE B293 OF B358 Program  : LAKET-PC Page 7 Number  : 03.7.292-1.0 0 Date : 03/06/2000 Created :Mon Oct 27 08:45:58 1997 Time : 13:09:45.10 Case 1815: LaSalle U13S (Updated Worst 5/1/30-Day Temp; Ti=99.4F @ 1500; power u RUN 36 DAYS FROM 70100 TO 80500 PLOT FILE OPTION : 1 CYCLE FLAG: 1 WEATHER FILE OPTION: 1 ANEMOMETER HEIGHT 20.00 DENSITY: 62.40 SEEPAGE: .20 LAKE LENGTH: 5500.00 INITIAL LAKE ELEVATION = 690.00 DRAWDOWN CURVE ELEVATION TOTAL AREA TOTAL VOLUME EFF AREA EFF VOLUME 690.000 81.350 341.400 73.210 307.200 689.000 79.750 260.800 71.780 234.700 688.000 78.150 181.900 70.340 163.700 687.000 29.700 102.200 26.730 92.000 686.000 22.220 60.000 20.000 54.000 685.000 13.420 43.800 12.080 39.400 PLOT FILE FREQ 1 INCREMENTS AT 0 HOURS INITIAL FORCED/NATURAL LAKE TEMPS. = 99.40 94.90 WEATHER STATION ID 0. PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE B294 OF B358 Program LAKET-PC Page : 8 Number 03.7.292-1.0 0 Date 03/06/2000 Created Mon Oct 27 08:45:58 1997 Time : 13:09:45.10 Case 1815: LaSalle UHS (Updated Worst 5/1/30-Day Temp; Ti=99.4F @ 1500; power u FPLANT 70100 - 80500 R/I 84.000 TPRISE 70100 - 80500 S/I 35.260 28.790 16.680 16.280 15.320 14.970 14.530 14.290 13.880 13.450 13.300 13.300 13.300 13.240 12.730 12.730 12.570 12.430 12.240 12.020 12.020 12.020 12.020 12.010 11.490 11.490 11.490 11.490 11.490 11.490 11.490 11.490 11.090 11.070 11.070 11.070 11.070 10.870 10.860 10.860 10.500 10.500 10.500 10.500 10.500 10.500 10.500 10.500 10.500 10.500 10.500 10.500 10.500 10.500 10.500 10.270 9.990 9.990 9.990 9.990 9.990 9.990 9.990 9.990 9.990 9.990 9.990 9.990 9.990 9.990 9.990 9.990 9.990 9.990 9.720 9.700 9.700 9.700 9.700 9.700 9.540 9.540 9.540 9.540 9.540 9.540 9.540 9.540 9.540 9.540 9.540 9.540 9.400 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.150 8.850 8.850 8.850 8.850 8.850 8.850 8,850 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8.720 8.700 8.700 8.700 8.700 8.700 8.700 8.700 8.700 8.700 8.700 8.700 8.700 8.700 8.700 8.700 8.700 8.700 8.700 8.700 PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE B295 OF B358 8.700 8.700 8.700 8.700 8.700 8.520 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.440 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE B296 OF B358 Program LAKET-PC Page : 9 Number  : 03.7.292-1.0 0 Date : 03/06/2000 Created Mon Oct 27 08:45:58 1997 Time : 13:09:45.26 Case 1815: LaSalle UHS (Updated Worst 5/1/30-Day Temp; Ti=99.4F @ 1500; power u SEASONAL

SUMMARY

FOR SUMMER ( 6/1900 - 8/1900 ) QUANTITY MONTHLY AVERAGES AVERAGE JUN JUL AUG VALUE LAKE SEEPAGE (CFS) .00 -. 17 -. 14 -. 16 TOTAL EVAP (CFS) .00 -1.60 -1.32 -1.56 NATURAL EVAP (CFS) .00 -. 96 -. 76 -. 93 FORCED EVAP (CFS) .00 -. 65 -. 56 -. 63 PRECIPITATION (CFS) .00 .00 .00 .00 MAKEUP (CFS) .00 .00 .00 .00 BLOWDOWN (CFS) .00 .00 .00 .00 RUNOFF (CFS) .00 .00 .00 .00 DAM SPILL (CFS) .00 .00 .00 .00 LAKE ELEVATION (FEET) .00 689.28 688.56 689.18 DISSOLVED SOLIDS (PPM) .00 .00 .00 .00 NATURAL LAKE TEMP (F) .00 90.67 89.93 90.56 LAKE INLET TEMP (F) .00 101.10 98.68 100.77 LAKE OUTLET TEMP (F) .00 91.37 90.64 91.27 TEMPERATURE FREQUENCY OF OCCURENCES 1% 5% 50% NATURAL LAKE TEMP (F) 97.8 96.0 90.9 LAKE INLET TEMP (F) 127.0 109.0 100.7 LAKE OUTLET TEMP (F) 99.0 97.1 91.6 PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE B297 OF B358 Program  : LAKET-PC Page : 10 Number 03.7.292-1.0 0 Date : 03/06/2000 Created  : Mon Oct 27 08:45:58 1997 Time 13:09:45.26 Case 1815: LaSalle UHS (Updated Worst 5/1/30-Day Temp; Ti=99.4F @ 1500; power u CUMULATIVE SEASONAL

SUMMARY

SUMMER QUANTITY MONTHLY AVERAGES AVERAGE JUN JUL AUG VALUE LAKE SEEPAGE (CFS) .00 -. 17 -. 14 -. 16 TOTAL EVAP (CFS) .00 -1.60 -1.32 -1.56 NATURAL EVAP (CFS) .00 -. 96 -. 76 -. 93 FORCED EVAP (CFS) .00 -. 65 -. 56 -. 63 PRECIPITATION (CFS) .00 .00 .00 .00 MAKEUP (CFS) .00 .00 .00 .00 BLOWDOWN (CFS) .00 .00 .00 .00 RUNOFF (CFS) .00 .00 .00 .00 DAM SPILL (CFS) .00 .00 .00 .00 LAKE ELEVATION (FEET) ,00 689.28 688.56 689.18 DISSOLVED SOLIDS (PPM) .00 .00 .00 .00 NATURAL LAKE TEMP (F) .00 90.67 89.93 90.56 LAKE INLET TEMP (F) .00 101.10 98.68 100.77 LAKE OUTLET TEMP (F) .00 91.37 90.64 91.27 TEMPERATURE FREQUENCY OF OCCURENCES 1% 5% 50%

NATURAL LAKE TEMP (F) 97.8 96.0 90.9 LAKE INLET TEMP (F) 127.0 109.0 100.7 LAKE OUTLET TEMP (F) 99.0 97.1 91.6 PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE B298 OF B358 Program LAKET-PC Page : 1i Number 03.7,292-1.0 0 Date : 03/06/2000 Created Mon Oct 27 08:45:58 1997 Time z 13:09:45.26 Case 1815: LaSalle UHS (Updated Worst 5/1/30-Day Temp; Ti=99.4F 0 i500; power u TOTAL CUMULATIVE

SUMMARY

QUANTITY MAXIMUM MINIMUM AVERAGE TOTAL FLOW VALUE ( DATE VALUE ( DATE VALUE (ACRE-FEET) LAKE SEEPAGE (CFS) -. 13 8051900) -. 20 7011900) -. 16 -1.17127E+01 TOTAL EVAP (CFS) -. 24 8051900) -4.05 7051900) -1.56 -1.11671E+02 NATURAL EVAP (CFS) .00 7031900) -3.03 7051900) -. 93 -6.64355E+01 FORCED EVAP (CFS) -. 23 7311900) -1.61 7011900) -. 63 -4.52352E+01 PRECIPITATION (CFS) .00 7011900) .00 7011900) .00 0.OOOOOE+00 MAKEUP (CFS) .00 7011900) .00 7011900) .00 0.OOOOOE+00 BLOWDOWN (CFS) .00 7011900) .00 7011900) .00 0.0OOOOE+00 RUNOFF (CFS) .00 7011900) .00 7011900) .00 0.OOOOOE+00 DAM SPILL (CFS) .00 7011900) .00 7011900) .00 0.OOOOOE+00 LAKE ELEVATION (FEET) 689.99 7011900) 688.46 8051900) 689.18 4.92111E+04 DISSOLVED SOLIDS (PPM) .00 7011900) .00 7011900) .00 0.OOOOOE+00 NATURAL LAKE TEMP (F) 98.16 7041900) 80.46 7241900) 90.56 6.46670E+03 LAKE INLET TEMP (F) 135.25 7011900) 89 .62 7241900) 100.77 7.19S28E+03 LAKE OUTLET TEMP (F) 99.99 7011900) 81.36 7241900) 91.27 6.51694E+03 TEMPERATURE FREQUENCY OF OCCURENCES 1% 5% 50% NATURAL LAKE TEMP (F) 97.8 96.0 90.9 LAKE INLET TEMP (F) 127.0 109.0 100.7 LAKE OUTLET TEMP (F) 99,0 97.1 91.6 PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE B299 OF B358 Program : LAKET-PC Page  : 1 Number 03.7.292-1.0 0 Date 03/03/2000 Created Mon Oct 27 08:45:58 1997 Time  : 16:37:36.31 Case 1818: LaSalle UHS (Updated Worst 36-Day Temp; Ti=O00.OF 0 1800; power upra 1 2 070100 080500 1 1 3 1 20 4 1 0.2 5500. 0 5 690. 690. 1. 6 81.35 341.4 73.21 307.2 79.75 260.8 71.78 234.7 78.15 181.9 70.34 163.7 29.70 102.2 26.73 92.0 22.22 60.0 20.00 54.0 13.42 43.8 12.08 39.4 7 1 0 8 100.0 95.5 999 FPLANT R/I 86.0 TPRISE S/I 35.26 28.79 16.68 16.28 15.32 14.97 14.53 14.29 13 .88 13.45 13.30 13.30 13.30 13.24 12.73 12.73 12.57 12.43 12.24 12.02 12.02 12.02 12.02 12.01 11.49 11.49 11.49 11.49 11.49 11.49 11.49 11.49 11.09 11.07 PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE B300 OF B358 Program : LAKET-PC Page  : 2 Number  : 03.7.292-1.0 0 Date 03/03/2000 Time 16:37:36.31 Created Mon Oct 27 08:45:58 1997 11.07 11.07 11.07 10.87 10.86 10.86 10.50 10.50 10.50 10.50 10.50 10.50 10.50 10.50 10.50 10.50 10.50 10.50 10.50 10.50 10.50 10.27 9.99 9.99 9.99 9.99 9.99 9.99 9.99 9.99 9.99 9.99 9.99 9.99 9.99 9.99 9.99 9.99 9.99 9,99 9,72 9,70 9,70 9,70 9,70 9,70 9,54 9,54 9,54 9,54 9,54 PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE B301 OF B358 Program LAKET-PC Page  : 3 Number  : 03.7.292-1.0 0 Date  : 03/03/2000 Created Mon Oct 27 08:45:58 1997 Time 16:37:36.37 9.54 9.54 9.54 9.54 9.54 9.54 9.54 9.40 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE B302 OF B358 Program LAKET-PC Page : 4 Number  : 03.7.292-1.0 0 Date 03/03/2000 Created Mon Oct 27 08:45:58 1997 Time 16:37:36.37 9.19 9.19 9.15 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.72 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8 .70 8.52 8.49 PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE B303 OF B358 Program : LAKET-PC Page  : 5 Date 03/03/2000 Number  : 03.7.292-1.0 0 Time  : 16:37:36.37 Created :Mon Oct 27 08:45:58 1997 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE B304 OF B358 Program LAKET-PC Page : 6 Number  : 03.7.292-1.0 0 Date : 03/03/2000 Created Mon Oct 27 08:45:58 1997 Time 16:37:36.42 8.49 8.44 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 END PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE B305 OF B358 Program LAKET-PC Page : 7 Number  : 03.7.292-1.0 0 Date : 03/03/2000 Created Mon Oct 27 08:45:58 1997 Time : 16:37:36.92 Case 1818: LaSalle UHS (Updated Worst 36-Day Temp; Ti=100.OF @ 1800; power upra RUN 36 DAYS FROM 70100 TO 80500 PLOT FILE OPTION : 1 CYCLE FLAG: 1 WEATHER FILE OPTION: 1 ANEMOMETER HEIGHT 20.00 DENSITY: 62.40 SEEPAGE: .20 LAKE LENGTH: 5500.00 INITIAL LAKE ELEVATION = 690.00 DRAWDOWN CURVE ELEVATION TOTAL AREA TOTAL VOLUME EFF AREA EFF VOLUME 690.000 81.350 341.400 73.210 307.200 689.000 79.750 260.800 71.780 234.700 688.000 78.150 181.900 70.340 163.700 687.000 29.700 102.200 26.730 92.000 686.000 22.220 60.000 20.000 54.000 685.000 13.420 43.800 12.080 39.400 PLOT FILE FREQ 1 INCREMENTS AT 0 HOURS INITIAL FORCED/NATURAL LAKE TEMPS. = 100.00 95.50 WEATHER STATION ID 0. PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE B306 OF B358 Program LAKET-PC Page : 8 Number  : 03.7.292-1.0 0 Date 03/03/2000 Created :Mon Oct 27 08:45:58 1997 Time 16:37:36.92 Case 1818: LaSalle UHS (Updated Worst 36-Day Temp; Ti=I00.OF @ 1800; power upra FPLANT 70100 - 80500 R/I 86.000 TPRISE 70100 - 80500 S/I 35.260 28.790 16.680 16.280 15.320 14.970 14.530 14.290 13 .880 13.450 13.300 13.300 13.300 13.240 12.730 12.730 12.570 12.430 12.240 12.020 12.020 12.020 12.020 12.010 11.490 11A490 11.490 11.490 11.490 11.490 11.490 11.490 11.090 11.070 11.070 11.070 11.070 10.870 10.860 10.860 10.500 10.500 10.500 10.500 10.500 10.500 10.500 10.500 10.500 10.500 10.500 10.500 10.500 10.500 10.500 10.270 9.990 9.990 9.990 9.990 9.990 9.990 9.990 9.990 9.990 9.990 9.990 9.990 9.990 9.990 9.990 9.990 9.990 9.990 9.720 9.700 9.700 9.700 9.700 9.700 9.540 9.540 9.540 9.540 9.540 9.540 9.540 9.540 9.540 9.540 9.540 9.540 9.400 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9 .190 9.190 9.190 9.190 9.150 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8.720 8.700 8 .700 8.700 8.700 8.700 8.700 8.700 8.700 8.700 8.700 8.700 8.700 8.700 8.700 8.700 8.700 8.700 8.700 8.700 PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE B307 OF B358 8.700 8.700 8.700 8.700 8.700 8.520 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.496 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.440 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE B308 OF B358 Program  : LAKET-PC Page : 9 Number  : 03.7.292-1.0 0 Date : 03/03/2000 Created :Mon Oct 27 08:45:58 1997 Time 16:37:37.08 Case 1818: LaSalle UHs (Updated Worst 36-Day Temp; Ti=100.OF § 1800; power upra SEASONAL

SUMMARY

FOR SUMMER ( 6/1900 - 8/1900 QUANTITY MONTHLY AVERAGES AVERAGE JUN JUL AUG VALUE LAKE SEEPAGE (CFS) .00 -. 17 -. 14 -. 17 TOTAL EVAP (CFS) .00 -1.35 -1.32 -1.34 NATURAL EVAP (CFS) .00 -. 72 -. 78 -. 73 FORCED EVAP (CFS) .00 -. 62 -. 54 -. 61 PRECIPITATION (CFS) .00 .00 .00 .00 MAKEUP (CFS) .00 .00 .00 .00 BLOWDOWN (CFS) .00 .00 .00 .00 RUNOFF (CFS) .00 .00 .00 .00 DAM SPILL (CFS) .00 .00 .00 .00 LAKE ELEVATION (FEET) .00 689.37 688.75 689.29 DISSOLVED SOLIDS (PPM) .00 .00 .00 .00 NATURAL LAKE TEMP (F) .00 88.35 92.85 88.98 LAKE INLET TEMP (F) .00 99.05 101.50 99.39 LAKE OUTLET TEMP (F) .00 89.31 93.30 89.87 TEMPERATURE FREQUENCY OF OCCURENCES 1% 5% 50% NATURAL LAKE TEMP (F) 97.0 95.0 88.9 LAKE INLET TEMP (F) 125.0 105.8 99.1 LAKE OUTLET TEMP (F) 98.0 96.0 89.8 PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE B309 OF B358 Program LAKET-PC Page 10 Number 03.7.292-1.0 0 Date 03/03/2000 Created Mon Oct 27 08:45:58 1997 Time : 16:37:37.08 Case 1818: LaSalle UHS (Updated Worst 36-Day Temp; Ti=100.OF @ 1800; power upra CUMULATIVE SEASONAL

SUMMARY

SUMMER QUANTITY MONTHLY AVERAGES AVERAGE JUN JUL AUG VALUE LAKE SEEPAGE (CFS) .00 -. 17 -. 14 -. 17 TOTAL EVAP (CFS) .00 -1.35 -1.32 -1.34 NATURAL EVAP (CFS) .00 -. 72 -. 78 -. 73 FORCED EVAP (CFS) .00 -. 62 -. 54 -. 61 PRECIPITATION (CFS) .00 .00 .00 .00 MAKEUP (CFS) .00 .00 .00 .00 BLOWDOWN (CFS) .00 .00 .00 .00 RUNOFF (CFS) .00 .00 .00 .00 DAM SPILL (CFS) .00 .00 .00 .00 LAKE ELEVATION (FEET) .00 689.37 688.75 689.29 DISSOLVED SOLIDS (PPM) .00 .00 .00 .00 NATURAL LAKE TEMP (F) .00 88.35 92.85 88.98 LAKE INLET TEMP (F) .00 99.05 101.50 99.39 LAKE OUTLET TEMP (F) .00 89.31 93.30 89.87 TEMPERATURE FREQUENCY OF OCCURENCES 1% 5% 50%

NATURAL LAKE TEMP (F) 97.0 95.0 88.9 LAKE INLET TEMP (F) 125.0 105.8 99.1 LAKE OUTLET TEMP (F) 98.0 96.0 89.8 PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE B310 OF B358 Program LAKET-PC Page : 11 Number 03.7.292-1.0 0 Date : 03/03/2000 Created  : Mon Oct 27 08:45:58 1997 Time 16:37:37.08 Case 1818: LaSalle UHS (Updated Worst 36-Day Temp; Ti=100.0F @ 1800; power upra TOTAL CUMULATIVE

SUMMARY

QUANTITY MAXIMUM MINIMUM AVERAGE TOTAL FLOW VALUE ( DATE VALUE ( DATE ) VALUE (ACRE-FEET) LAKE SEEPAGE (CFS) -. 14 8051900) -.20 7011900) -. 17 -1.20347E+01 TOTAL EVAP (CFS) -. 19 8031900) -4.28 7021900) -1.34 -9.60339E+01 NATURAL EVAP (CFS) .00 7011900) -3.21 7021900) -. 73 -5.22645E+01 FORCED EVAP (CFS) -. 19 8031900) -1.77 7011900) -. 61 -4.37694E+01 PRECIPITATION (CFS) .00 7011900) .00 7011900) .00 0.00000E+00 MAKEUP (CFS) .00 7011900) .00 7011900) .00 0.OOOOOE+00 BLOWDOWN (CFS) .00 7011900) .00 7011900) .00 0.00000E+00 RUNOFF (CFS) .00 7011900) .00 7011900) .00 0.OOOOOE+00 DAM SPILL (CFS) .00 7011900) .00 7011900) .00 0.OOOOOE+00 LAKE ELEVATION (FEET) 689.99 7011900) 688.65 8051900) 689.29 4.92184E+04 DISSOLVED SOLIDS (PPM) .00 7011900) .00 7011900) .00 0.OOOOOE+00 NATURAL LAKE TEMP (F) 98.27 8031900) 81.00 7061900) 88.98 6.35326E+03 LAKE INLET TEMP (F) 133.50 7011900) 92.05 7251900) 99.39 7.09704E+03 LAKE OUTLET TEMP (F) 98.57 8031900) 82.24 7061900) 89.87 6.41702E+03 TEMPERATURE FREQUENCY OF OCCURENCES 1% 5% 50% NATURAL LAKE TEMP (F) 97.0 95.0 88.9 LAKE INLET TEMP (F) 125.0 105.8 99.1 LAKE OUTLET TEMP (F) 98.0 96.0 89.8 PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE B311 OF B358 Program LAKET-PC Page : 1 Number 03.7.292-1.0 0 Date : 03/03/2000 Created Mon Oct 27 08:45:58 1997 Time : 16:42:04.08 Case 1821: LaSalle UHS (updated Worst 36-Day Temp; Ti=100.0F @ 2100; power upra 1 2 070100 080500 1 1 3 1 20 4 1 0.2 5500. 0 5 690. 690. 1. 6 81.35 341.4 73.21 307.2 79.75 260.8 71.78 234.7 78.15 181.9 70.34 163.7 29.70 102.2 26.73 92.0 22.22 60.0 20.00 54.0 13.42 43.8 12.08 39.4 7 1 0 8 100.0 95.5 999 FPLANT R/I 86.0 TPRISE S/I 35.26 28.79 16.68 16.28 15.32

14. 97 14.53 14 .29 13 .88 13.45 13.30 13.30 13 .30 13.24 12 .73 12.73 12.57 12.43 12.24 12.02 12.02 12.02 12.02 12.01 11.49 11.49 11.49 11.49 11.49 11.49 11.49 11.49 11.09 11.07 PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE B312 OF B358 Program : LAKET-PC Page : 2 Number 03.7.292-1.0 0 Date 03/03/2000 Created Mon Oct 27 08:4S:58 1997 Time : 16:42:04.08 11.07 11.07 11.07 10.87 10.86 10.86 10.50 10.50 10.50 10.50 10.50 10.50 10.50 10.50 10.50 10.50 10.50 10.50 10.50 10.50 10.50 10.27 9.99 9.99 9.99 9.99 9.99 9.99 9.99 9.99 9.99 9.99 9.99 9.99 9.99 9.99 9.99 9.99 9.99 9.99 9.72 9.70 9.70 9.70 9.70 9.70 9.54 9.54 9.54 9.54 9.54 PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE 6313 OF B358 Program ILAKET-PC Page  : 3 Number 03.7.292-1.0 0 Date  : 03/03/2000 Created Mon Oct 27 08:45:58 1997 Time  : 16:42:04.13 9.54 9.54 9.54 9.54 9.54 9.54 9.54 9.40 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9 .19 9 .19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE B314 OF B358 Program : LAKET-PC Page : 4 Number 03.7.292-1.0 0 Date : 03/03/2000 Created :Mon Oct 27 08:45:58 1997 Time : 16:42:04.13 9.19 9.19 9.15 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8 .85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.72 8.70 8.70 8.70 8.70 8.70 8.70 8 .70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.52 8.49 PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE B315 OF B358 Program : LAKET-PC Page  : 5 Date : 03/03/2000 Number 03.7.292-1.0 0 Time : 16:42:04.13 Created :Mon Oct 27 08:45:58 1997 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE B316 OF B358 Program : LAKET-PC Page : 6 Number 03.7.292-1.0 0 Date : 03/03/2000 Created :Mon Oct 27 08:45:58 1997 Time : 16:42:04.19 8.49 8.44 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 8.22 END PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE B317 OF B358 Program : LAKET-PC Page: 7 Number 03.7.292-1.0 0 Date : 03/03/2000 Created :Mon Oct 27 08:45:58 1997 Time  : 16:42:04.68 Case 1821: LaSalle UHS (Updated Worst 36-Day Temp; Ti=l00.OF @ 2100; power upra RUN 36 DAYS FROM 70100 TO 80500 PLOT FILE OPTION : 1 CYCLE FLAG: 1 WEATHER FILE OPTION: 1 ANEMOMETER HEIGHT 20.00 DENSITY: 62.40 SEEPAGE: .20 LAKE LENGTH: 5500.00 INITIAL LAKE ELEVATION = 690.00 DRAWDOWN CURVE ELEVATION TOTAL AREA TOTAL VOLUME EFF AREA EFF VOLUME 690.000 81.350 341.400 73.210 307.200 689.000 79.750 260.800 71.780 234.700 688.000 78.150 181.900 70.340 163.700 687.000 29.700 102.200 26.730 92.000 686.000 22.220 60.000 20.000 54.000 685.000 13.420 43.800 12.080 39.400 PLOT FILE FREQ 1 INCREMENTS AT 0 HOURS INITIAL FORCED/NATURAL LAKE TEMPS. = 100.00 95.50 WEATHER STATION ID 0. PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE B318 OF B358 Program  : LAKET-PC Page  : 8 Number 03.7.292-1.0 0 Date 03/03/2000 Created Mon Oct 27 08:45:58 1997 Time  : 16:42:04.68 Case 1821: LaSalle UHS (Updated Worst 36-Day Temp; Ti=100.0F @ 2100; power upra FPLANT 70100 - 80500 R/I 86.000 TPRISE 70100 - 80500 S/I 35.260 28.790 16.680 16.280 15.320 14.970 14.530 14.290 13.880 13.450 13.300 13.300 13.300 13 . 240 12.730 12.730 12.570 12.430 12.240 12.020 12.020 12.020 12.020 12.010 11.490 11.490 11.490 11.490 11.490 11.490 11.490 11.490 11.090 11.070 11.070 11.070 11.070 10.870 10.860 10.860 10.500 10.500 10.500 10.500 10.500 10.500 10.500 10.500 10.500 10.500 10.500 10.500 10.500 10.500 10.500 10.270 9.990 9.990 9.990 9.990 9.990 9.990 9.990 9.990 9.990 9.990 9.990 9.990 9.990 9.990 9.990 9.990 9.990 9.990 9.720 9.700 9.700 9.700 9.700 9.700 9.540 9.540 9.540 9.540 9.540 9.540 9.540 9.540 9.540 9.540 9.540 9.540 9.400 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.150 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8.720 8.700 8.700 8.700 8.700 8.700 8.700 8.700 8.700 8.700 8.700 8.700 8.700 8.700 8.700 8.700 8.700 8.700 8.700 8.700 PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE B319 OF B358 8.700 8.700 8.700 8.700 8.700 8.520 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.440 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 8.220 PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE B320 OF B358 Program : LAKET-PC Page : 9 Number  : 03.7.292-1.0 0 Date 03/03/2000 Created :Mon Oct 27 08:45:58 1997 Time : 16:42:04.85 Case 1821: LaSalle UHS (Updated Worst 36-Day Temp; Ti=100.OF @ 2100; power upra SEASONAL

SUMMARY

FOR SUMMER ( 6/1900 - 8/1900 QUANTITY MONTHLY AVERAGES AVERAGE JUN JUL AUG VALUE LAKE SEEPAGE (CFS) .00 -. 17 -. 14 -. 17 TOTAL EVAP (CFS) .00 -1.35 -1.35 -1.35 NATURAL EVAP (CFS) .00 -. 72 -. 80 -. 74 FORCED EVAP (CFS) .00 -. 62 -. 54 -. 61 PRECIPITATION (CFS) .00 .00 .00 .00 MAKEUP (CFS) .00 .00 00 .00 BLOWDOWN (CFS) .00 .00 .00 .00 RUNOFF (CFS) .00 .00 .00 .00 DAM SPILL (CFS) .00 .00 .00 .00 LAKE ELEVATION (FEET) .00 689.37 688.75 689.28 DISSOLVED SOLIDS (PPM) .00 .00 .00 .00 NATURAL LAKE TEMP (F) .00 88.38 92.79 88.99 LAKE INLET TEMP (F) .00 99.07 101.42 99.40 LAKE OUTLET TEMP (F) .00 89.33 93.25 89.87 TEMPERATURE FREQUENCY OF OCCURENCES 1% 5% 50% NATURAL LAKE TEMP (F) 97.0 9S.0 88.9 LAKE INLET TEMP (F) 125.0 105.6 99.1 LAKE OUTLET TEMP (F) 97.8 96.0 89.8 PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE B321 OF B358 Program  : LAKET-PC Page 10 Number  : 03.7.292-1.0 0 Date : 03/03/2000 Created  : Mon Oct 27 08:45:58 1997 Time : 16:42:04.85 Case 1821: LaSalle UHS (Updated Worst 36-Day Temp; Ti=100.OF Q 2100; power upra CUMULATIVE SEASONAL

SUMMARY

SUMMER QUANTITY MONTHLY AVERAGES AVERAGE JUN JUL AUG VALUE LAKE SEEPAGE (CFS) .00 -. 17 -. 14 -. 17 TOTAL EVAP (CFS) .00 -1.35 -1.35 -1.35 NATURAL EVAP (CFS) .00 -. 72 -. 80 -. 74 FORCED EVAP (CFS) .00 -. 62 -. 54 -. 61 PRECIPITATION (CFS) .00 .00 .00 .00 MAKEUP (CFS) .00 .00 .00 .00 BLOWDOWN (CFS) .00 .00 .00 .00 RUNOFF (CFS) .00 .00 .00 .00 DAM SPILL (CFS) .00 .00 .00 .00 LAKE ELEVATION (FEET) .00 689.37 688.75 689.28 DISSOLVED SOLIDS (PPM) .00 .00 .00 .00 NATURAL LAKE TEMP (F) .00 88.38 92.79 88.99 LAKE INLET TEMP (F) .00 99.07 101.42 99.40 LAKE OUTLET TEMP (F) .00 89.33 93.25 89.87 TEMPERATURE FREQUENCY OF OCCURENCES 1% 5% 50%

NATURAL LAKE TEMP (F) 97.0 95.0 88.9 LAKE INLET TEMP (F) 125.0 105.6 99.1 LAKE OUTLET TEMP (F) 97.8 96.0 89.8 PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE B322 OF B358 Program : LAKET-PC Page : 11 Number  : 03.7.292-1.0 0 Date 03/03/2000 Created Mon Oct 27 08:45:58 1997 Time : 16:42:04.85 Case 1821: LaSalle UHS (Updated Worst 36-Day Temp; Ti=I00.0F @ 2100; power upra TOTAL CUMULATIVE

SUMMARY

QUANTITY MAXIMUM MINIMUM AVERAGE TOTAL FLOW VALUE ( DATE ) VALUE ( DATE ) VALUE (ACRE-FEET) LAKE SEEPAGE (CFS) -. 14 8051900) -. 20 7011900) -. 17 -1.20338E+01 TOTAL EVAP (CFS) -. 19 8031900) -4.38 7021900) -1.35 -9.63046E+01 NATURAL EVAP (CFS) .00 7011900) -3.25 7021900) -. 74 -5.24969E+01 FORCED EVAP (CPS) -. 19 8031900) -1.77 7011900) -. 61 -4.38077E+01 PRECIPITATION (CFS) .00 7011900) .00 7011900) .00 0.00000E+00 MAKEUP (CFS) .00 7011900) .00 7011900) .00 0.00000E+00 BLOWDOWN (CFS) .00 7011900) .00 7011900) .00 0.00000E+00 RUNOFF (CFS) .00 7011900) .00 7011900) .00 0.00000E+00 DAM SPILL (CPS) .00 7011900) .00 7011900) .00 0.00000E+00 LAKE ELEVATION (FEET) 689.99 7011900) 688.65 8051900) 689.28 4.92184E+04 DISSOLVED SOLIDS (PPM) .00 7011900) .00 7011900) .00 0.00000E+00 NATURAL LAKE TEMP (F) 98.26 8031900) 81.04 7061900) 88.99 6.35459E+03 LAKE INLET TEMP (F) 133.26 7011900) 92.04 7251900) 99.40 7.09739E+03 LAKE OUTLET TEMP (F) 98.57 8031900) 82.27 7061900) 89.87 6.41749E+03 TEMPERATURE FREQUENCY OF OCCURENCES 1% 5% 50% NATURAL LAKE TEMP (F) 97.0 95.0 88.9 LAKE INLET TEMP (F) 125.0 105.6 99.1 LAKE OUTLET TEMP (F) 97.8 96.0 89.8 PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE B323 OF B358 Program LAKET-PC Page : 1 Number  : 03.7.292-1.0 0 Date : 03/08/2000 Created Mon Oct 27 08:45:58 1997 Time : 10:45:12.20 Case 0Cle: LaSalle UHS (Updated Worst 30-Day Evap; Ti=97.6F @ 1200; power uprate 1 2 070100 073000 3 1 20 4 1 0.2 5500. 0 5 690. 690. 1. 6 83.83 464.9 75.45 418.4 82.15 381.9 73.94 343.7 80.55 300.5 72.50 270.5 78.96 220.8 71.06 198.7 77.33 142.6 69.60 128.4 29.70 71.7 26.73 65.6 7 1 0 8 97.6 93.1 999 FPLANT R/I 86.0 TPRISE S/I 35.26 28.79 16.68 16.28 15.32 14 .97 14.53 14 .29 13 .88 13 .45 13.30 13.30 13.30 13.24 12.73 12.73 12.57 12.43 12.24 12.02 12.02 12.02 12.02 12.01 11.49 11.49 11.49 11.49 11.49 11.49 11.49 11.49 11.09 11.07 PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE B324 OF B358 Program : LAKET-PC Page: 2 Number  : 03.7.292-1.0 0 Date : 03/08/2000 Created Mon Oct 27 08:45:58 1997 Time 10:45:12.25 11.07 11.07 11.07 10.87 10.86 10.86 10.50 10.50 10.50 10.50 10.50 10.50 10.50 10.50 10.50 10.50 10.50 10.50 10.50 10.50 10.50 10.27 9.99 9.99 9.99 9.99 9.99 9.99 9.99 9.99 9.99 9.99 9.99 9.99 9.99 9.99 9.99 9.99 9.99 9.99 9.72 9.70 9.70 9.70 9.70 9.70 9.54 9.54 9.54 9.54 9.54 PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE B325 OF B358 Program : LAKET-PC Page 3 Number  : 03.7.292-1.0 0 Date  : 03/08/2000 Created :Mon Oct 27 08:45:58 1997 Time  : 10:45:12.25 9.54 9.54 9.54 9.54 9.54 9.54 9.54 9.40 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE B326 OF B358 Program LAKET-PC Page : 4 Number  : 03.7.292-1.0 0 Date : 03/08/2000 Created :Mon Oct 27 08:45:58 1997 Time : 10:45:12.25 9.19 9.19 9.15 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.72 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8 .70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.52 8.49 PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE B327 OF B358 Program LAKET-PC Page : S Date : 03/08/2000 Number 03.7.292-1.0 0 Time 10:45:12.31 Created Mon Oct 27 08:45:S8 1997 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE B328 OF B358 Page : 6 Program : LAKET-PC Date 03/08/2000 Number  : 03.7.292-1.0 0 Time 10:45:12.36 Created :Mon Oct 27 08:45:58 1997 8.49 8.44 END PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE B329 OF B358 Program LAKET-PC Page : 7 Number  : 03.7.292-1,0 0 Date 03/08/2000 Created Mon Oct 27 08:45:58 1997 Time : 10:45:12.75 Case 00e: LaSalle UHS (Updated Worst 30-Day Evap; Ti=97.6F 0 1200; power uprate RUN 30 DAYS FROM 70100 TO 73000 PLOT FILE OPTION : 1 CYCLE FLAG: 1 WEATHER FILE OPTION: 1 ANEMOMETER HEIGHT 20.00 DENSITY: 62.40 SEEPAGE: .20 LAKE LENGTH: 5500.00 INITIAL LAKE ELEVATION = 690.00 DRAWDOWN CURVE ELEVATION TOTAL AREA TOTAL VOLUME EFF AREA EFF VOLUME 690.000 83.830 464.900 75.450 418.400 689.000 82.1S0 381.900 73.940 343.700 688.000 80.550 300.500 72.500 270.500 687.000 78.960 220.800 71.060 198.700 686.000 77.330 142.600 69.600 128.400 685.000 29.700 71.700 26.730 65.600 PLOT FILE FREQ 1 INCREMENTS AT 0 HOURS INITIAL FORCED/NATURAL LAKE TEMPS. = 97.60 93.10 WEATHER STATION ID 0. PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE B330 OF B358 Program LAKET-PC Page : 8 Number 03.7.292-1.0 0 Date : 03/08/2000 Created Mon Oct 27 08:45:58 1997 Time 10:45:12.75 Case 00e: LaSalle UHS (Updated Worst 30-Day Evap; Ti=97.6F @ 1200; power uprate FPLANT 70100 - 73000 R/I 86.000 TPRISE 70100 - 73000 S/I 35.260 28.790 16.680 16.280 15.320 14.970 14.530 14.290 13.880 13.450 13.300 13.300 13.300 13.240 12.730 12.730 12.570 12.430 12.240 12.020 12.020 12.020 12.020 12.010 11.490 11.490 11.490 11.490 11,490 11.490 11.490 11.490 11.090 11.070 11.070 11.070 11.070 10.870 10.860 10.860 10.500 10.500 10.500 10.500 10.500 10.500 10.500 10.500 10.500 10.500 10.500 10.500 10.500 10.500 10.500 10.270 9.990 9.990 9.990 9.990 9.990 9.990 9.990 9.990 9.990 9.990 9.990 9.990 9.990 9.990 9.990 9.990 9.990 9.990 9.720 9.700 9.700 9.700 9.700 9.700 9.540 9.540 9.540 9.540 9.540 9.540 9.540 9.540 9.540 9.540 9.540 9.540 9.400 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.150 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8.720 8.700 8.700 8.700 8.700 8.700 8.700 8.700 8.700 8.700 8.700 8.700 8.700 8.700 8.700 8.700 8.700 8.700 8.700 8.700 PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE B331 OF B358 8.700 8.700 8.700 8.700 8.700 8.520 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.440 PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE B332 OF B358 Program LAKET-PC Page 9 Number 03.7.292-1.0 0 Date 03/08/2000 Created Mon Oct 27 08:45:58 1997 Time : 10:45:12.86 Case 00e: LaSalle UHS (Updated Worst 30-Day Evap; Ti=97.6F @ 1200; power uprate SEASONAL

SUMMARY

FOR SUMMER ( 6/1900 - 8/1900 ) QUANTITY MONTHLY AVERAGES AVERAGE JUN JUL AUG VALUE LAKE SEEPAGE (CFS) .00 -. 18 .00 -. 18 TOTAL EVAP (CFS) .00 -1.85 .00 -1.85 NATURAL EVAP (CFS) .00 -1.23 .00 -1.23 FORCED EVAP (CFS) .00 -. 63 .00 -. 63 PRECIPITATION (CFS) .00 .00 .00 .00 MAKEUP (CFS) .00 .00 .00 .00 BLOWDOWN (CFS) .00 .00 .00 .00 RUNOFF (CFS) .00 .00 .00 .00 DAM SPILL (CFS) .00 .00 .00 .00 LAKE ELEVATION (FEET) .00 689.23 .00 689.23 DISSOLVED SOLIDS (PPM) .00 .00 .00 .00 NATURAL LAKE TEMP (F) .00 84.56 .00 84.56 LAKE INLET TEMP (F) .00 95.49 .00 95.49 LAKE OUTLET TEMP (F) .00 85.69 .00 85.69 TEMPERATURE FREQUENCY OF OCCURENCES 1% 5% 50% NATURAL LAKE TEMP (F) 95.8 92.2 84.1 LAKE INLET TEMP (F) 128.0 106.5 94.6 LAKE OUTLET TEMP (F) 99.0 92.7 85.2 PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE B333 OF B358 Program  : LAKET-PC Page : 10 Number  : 03.7.292-1.0 0 Date : 03/08/2000 Created :Mon Oct 27 08:45:58 1997 Time 10:45:12.86 Case 00e: LaSalle UHS (Updated Worst 30-Day Evap; Ti=97.6F @ 1200; power uprate CUMULATIVE SEASONAL

SUMMARY

SUMMER QUANTITY MONTHLY AVERAGES AVERAGE JUN JUL AUG VALUE LAKE SEEPAGE (CFS) .00 -. 18 .00 -. 18 TOTAL EVAP (CFS) .00 -1.85 .00 -1.85 NATURAL EVAP (CFS) .00 -1.23 .00 -1.23 FORCED EVAP (CFS) .00 -. 63 .00 -. 63 PRECIPITATION (CFS) .00 .00 .00 .00 MAKEUP (CFS) .00 .00 .00 .00 BLOWDOWN (CFS) .00 .00 .00 .00 RUNOFF (CFS) .00 .00 .00 .00 DAM SPILL (CFS) .00 .00 .00 .00 LAKE ELEVATION (FEET) .00 689.23 .00 689.23 DISSOLVED SOLIDS (PPM) .00 .00 .00 .00 NATURAL LAKE TEMP (F) .00 84.56 .00 84.56 LAKE INLET TEMP (F) .00 95.49 .00 95.49 LAKE OUTLET TEMP (F) .00 85.69 .00 85.69 TEMPERATURE FREQUENCY OF OCCURENCES 1% 5% 50%

NATURAL LAKE TEMP (F) 95.8 92.2 84.1 LAKE INLET TEMP (F) 128.0 106.5 94.6 LAKE OUTLET TEMP (F) 99.0 92.7 85.2 PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE B334 OF B358 Program LAKET-PC Page : 11 Number 03.7.292-1.0 0 Date 03/08/2000 Created Mon Oct 27 08:45:58 1997 Time : 10:45:12.86 Case 00e: LaSalle UHS (Updated Worst 30-Day Evap; Ti=97.6F @ 1200; power uprate TOTAL CUMULATIVE

SUMMARY

QUANTITY MAXIMUM MINIMUM AVERAGE TOTAL FLOW VALUE ( DATE ) VALUE ( DATE ) VALUE (ACRE-FEET) LAKE SEEPAGE (CFS) -. 15 7301900) -. 20 7011900) -. 18 -1.04198E+01 TOTAL EVAP (CFS) *55 7121900) -5.34 7101900) -1.85 -1.10111E+02 NATURAL EVAP (CFS) .28 7051900) -4.08 7101900) -1.23 -7.29136E+01 FORCED EVAP (CFS) .15 7011900) -1.92 7011900) -. 63 -3.71974E+01 PRECIPITATION (CFS) .00 7011900) .00 7011900) .00 0.00000E+00 MAKEUP (CFS) .00 7011900) .00 7011900) .00 0.00000E+00 BLOWDOWN (CFS) .00 7011900) .00 7011900) .00 0.00000E+00 RUNOFF (CFS) .00 7011900) .00 7011900) .00 0.OOOOOE+00 DAM SPILL (CFS) .00 7011900) .00 7011900) .00 0.00000E+00 LAKE ELEVATION (FEET) 690.00 7011900) 688.54 7301900) 689.23 4.10120E+04 DISSOLVED SOLIDS (PPM) .00 7011900) .00 7011900) .00 0.00000E+00 NATURAL LAKE TEMP (F) 96.31 7011900) 76.28 7201900) 84.56 5.03142E+03 LAKE INLET TEMP (F) 134.81 7011900) 85.75 7201900) 95.49 5.68204E+03 LAKE OUTLET TEMP (F) 99.95 7011900) 76.90 7201900) 85.69 5.09892E+03 TEMPERATURE FREQUENCY OF OCCURENCES 1% 5% 50% NATURAL LAKE TEMP (F) 95.8 92.2 84.1 LAKE INLET TEMP (F) 128.0 106.5 94.6 LAKE OUTLET TEMP (F) 99.0 92.7 85.2 PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE B335 OF B358 Program : LAKET-PC Page : 1 Number  : 03.7.292-1.0 0 Date : 03/08/2000 Created :Mon Oct 27 08:45:58 1997 Time 10:54:07.45 Case 06e: LaSalle UHS (Updated Worst 30-Day Evap; Ti=97.4F @1200; power uprate; 1 2 070100 073000 1 1 3 1 20 4 1 0.2 5500. 0 5 690. 690. 1. 6 82.99 423.5 74.69 381.2 81.35 341.4 73.21 307.2 79.75 260.8 71.78 234.7 78.15 181.9 70.34 163.7 29.70 102.2 26.73 92.0 22.22 60.0 20.00 54.0 7 1 0 8 97.4 92.9 999 FPLANT R/I 86.0 TPRISE S/I 35.26 28.79 16.68 16.28 15.32 14.97 14.53 14.29 13.88 13.45 13.30 13.30 13.30 13 .24 12.73 12.73 12.57 12.43 12 .24 12 .02 12.02 12 .02 12.02 12 .01 11.49 11.49 11.49 11.49 11.49 11.49 11.49 11.49 11.09 PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE B336 OF B358 Program LAKET-PC Page : 2 Number 03.7.292-1.0 0 Date : 03/08/2000 Created :Mon Oct 27 08:45:58 1997 Time 10:54:07.50 11.07 11.07 11.07 11.07 10.87 10.86 10.86 10.50 10.50 10.50 10.50 10.50 10.50 10.50 10.50 10.50 10.50 10.50 10.50 10.50 10.50 10.50 10.27 9.99 9.99 .9.99 9.99 9.99 9.99 9.99 9.99 9.99 9.99 9.99 9.99 9.99 9.99 9.99 9.99 9.99 9.99 9.72 9.70 9.70 9.70 9.70 9.70 9.54 9.54 9.54 9.54 PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE B337 OF B358 Program : LAKET-PC Page : 3 Number  : 03.7.292-1.0 0 Date : 03/08/2000 Created Mon Oct 27 08:45:58 1997 Time 10:54:07.50 9.54 9.54 9.54 9.54 9.54 9.54 9.54 9.54 9.40 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE B338 OF B358 Program LAKET-PC Pag e: 4 Number 03.7.292-1.0 0 Dat e 03/08/2000 Created Mon Oct 27 08:45:58 1997 Tim e 10:54:07.50 9.19 9.19 9.19 9.15 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.72 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.52 PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE B339 OF B358 Program :LAKET-PC Page  : 5 Number  : 03.7.292-1.0 0 Date : 03/08/2000 Created Mon Oct 27 08:45:58 1997 Time  : 10:54:07.50 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE B340 OF B358 Page : 6 Program LAKET-PC Date 03/08/2000 Number 03.7.292-1.0 0 Time 10:54:07.56 Created :Mon Oct 27 08:45:58 1997 8.49 8.49 8.44 END PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE B341 OF B358 Program  : LAKET-PC Page : 7 Number 03.7.292-1.0 0 Date : 03/08/2000 Created :Mon Oct 27 08:45:58 1997 Time : 10:54:07.94 Case 06e: LaSalle UHS (Updated Worst 30-Day Evap; Ti=97,4F @1200; power uprate; RUN 30 DAYS FROM 70100 TO 73000 PLOT FILE OPTION : 1 CYCLE FLAG: 1 WEATHER FILE OPTION: 1 ANEMOMETER HEIGHT 20.00 DENSITY: 62.40 SEEPAGE: .20 LAKE LENGTH: 5500.00 INITIAL LAKE ELEVATION = 690.00 DRAWDOWN CURVE ELEVATION TOTAL AREA TOTAL VOLUME EFF AREA EFF VOLUME 690.000 82.990 423.500 74.690 381.200 689.000 81.350 341.400 73.210 307.200 688.000 79.750 260.800 71.780 234.700 687.000 78.150 181.900 70.340 163.700 686.000 29.700 102.200 26.730 92.000 685.000 22.220 60.000 20.000 54.000 PLOT FILE FREQ 1 INCREMENTS AT 0 HOURS INITIAL FORCED/NATURAL LAKE TEMPS. = 97.40 92.90 WEATHER STATION ID 0. PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE B342 OF B358 Program LAKET-PC Page : 8 Number 03.7.292-1.0 0 Date : 03/08/2000 Created Mon Oct 27 08:45:58 1997 Time : 10:54:07.94 Case 06e: LaSalle UHS (Updated Worst 30-Day Evap; Ti=97.4F @1200; power uprate; FPLANT 70100 - 73000 R/I 86.000 TPRISE 70100 - 73000 S/I 35.260 28.790 16.680 16.280 15.320 14.970 14.530 14.290 13.880 13.450 13.300 13.300 13.300 13.240 12.730 12.730 12.570 12.430 12.240 12.020 12.020 12.020 12.020 12.010 11.490 11.490 11.490 11.490 11.490 11.490 11.490 11.490 11.090 11.070 11.070 11.070 11.070 10.870 10.860 10.860 10.500 10.500 10.500 10.500 10.500 10.500 10.500 10.500 10.500 10.500 10.500 10.500 10.500 10.500 10.500 10.270 9.990 9.990 9.990 9.990 9.990 9.990 9.990 9.990 9.990 9.990 9.990 9.990 9.990 9.990 9.990 9.990 9.990 9.990 9.720 9.700 9.700 9.700 9.700 9.700 9.540 9.540 9.540 9.540 9.540 9.540 9.540 9.540 9.540 9.540 9.540 9.540 9.400 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.150 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8.720 8.700 8.700 8.700 8.700 8.700 8.700 8.700 8.700 8.700 8.700 8.700 8.700 8.700 8.700 8.700 8.700 8.700 8.700 8.700 PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE B343 OF B358 8 .700 8.700 8.700 8.700 8.700 8.520 8 .490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.440 PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE B344 OF B358 Program : LAKET-PC Page 9 Number  : 03.7.292-1.0 0 Date : 03/08/2000 Created Mon Oct 27 08:45:58 1997 Time : 10:54:08.10 Case 06e: LaSalle UHS (Updated Worst 30-Day Evap; Ti=97.4F @1200; power uprate; SEASONAL

SUMMARY

FOR SUMMER ( 6/1900 - 8/1900 1 QUANTITY MONTHLY AVERAGES AVERAGE JUN JUL AUG VALUE LAKE SEEPAGE (CFS) .00 -. 17 .00 -. 17 TOTAL EVAP (CFS) .00 -1.83 .00 -1.83 NATURAL EVAP (CFS) .00 -1.21 .00 -1.21 FORCED EVAP (CFS) .00 -. 63 .00 -. 63 PRECIPITATION (CFS) .00 .00 .00 .00 MAKEUP (CFS) .00 .00 .00 .00 BLOWDOWN (CFS) .00 .00 .00 .00 RUNOFF (CFS) .00 .00 .00 .00 DAM SPILL (CFS) .00 .00 .00 .00 LAKE ELEVATION (FEET) .00 689.23 .00 689.23 DISSOLVED SOLIDS (PPM) .00 .00 .00 .00 NATURAL LAKE TEMP (F) .00 84.48 .00 84.48 LAKE INLET TEMP (F) .00 95.36 .00 95.36 LAKE OUTLET TEMP (F) .00 85.57 .00 85.57 TEMPERATURE FREQUENCY OF OCCURENCES 1% 5% 50% NATURAL LAKE TEMP (F) 95.8 92.2 84.0 LAKE INLET TEMP (F) 128.0 106.0 94.4 LAKE OUTLET TEMP (F) 99.0 92.5 85.1 PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE B345 OF B358 Program LAKET-PC Page 10 Number 03.7.292-1.0 0 Date : 03/08/2000 Created Mon Oct 27 08:45:58 1997 Time 10:54:08.10 Case 06e: LaSalle UHS (Updated Worst 30-Day Evap; Ti=97.4F 61200; power uprate; CUMULATIVE SEASONAL

SUMMARY

SUMMER QUANTITY MONTHLY AVERAGES AVERAGE JUN JUL AUG VALUE LAKE SEEPAGE (CFS) .00 -. 17 .00 -. 17 TOTAL EVAP (CFS) .00 -1.83 .00 -1.83 NATURAL EVAP (CFS) .00 -1.21 .00 -1.21 FORCED EVAP (CFS) .00 -. 63 .00 -. 63 PRECIPITATION (CFS) .00 .00 .00 .00 MAKEUP (CFS) .00 .00 .00 .00 BLOWDOWN (CFS) .00 .00 .00 .00 RUNOFF (CFS) .00 .00 .00 .00 DAM SPILL (CFS) .00 .00 .00 .00 LAKE ELEVATION (FEET) .00 689.23 .00 689.23 DISSOLVED SOLIDS (PPM) .00 .00 .00 .00 NATURAL LAKE TEMP (F) .00 84.48 .00 84.48 LAKE INLET TEMP (F) .00 95.36 .00 95.36 LAKE OUTLET TEMP (F) .00 85.57 .00 85.57 TEMPERATURE FREQUENCY OF OCCURENCES 1% 5% 50%

NATURAL LAKE TEMP (F) 95.8 92.2 84.0 LAKE INLET TEMP (F) 128.0 106.0 94.4 LAKE OUTLET TEMP (F) 99.0 92.5 85.1 PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE 8346 OF B358 Program LAKET-PC Page 11 Number 03.7,292-1.0 0 Date 03/08/2000 Created Mon Oct 27 08:45;58 1997 Time 10:54:08.10 Case 06e: LaSalle UHS (Updated Worst 30-Day Evap; Ti=97.4F @1200; power uprate; TOTAL CUMULATIVE

SUMMARY

QUANTITY MAXIMUM MINIMUM AVERAGE TOTAL FLOW VALUE ( DATE ) VALUE ( DATE ) VALUE (ACRE-FEET) LAKE SEEPAGE (CFS) -. 15 7301900) -. 20 7011900) -. 17 -1.02724E+01 TOTAL EVAP (CFS) -. 52 7121900) -5.34 7101900) -1.83 -1.09123E+02 NATURAL EVAP (CFS) -. 27 7051900) -4.09 7101900) -1.21 -7.19232E+01 FORCED EVAP (CFS) -. 14 7011900) -1.97 7011900) -. 63 -3.71999E+01 PRECIPITATION (CFS) .00 7011900) .00 7011900) .00 0.OOOOOE+00 MAKEUP (CFS) .00 7011900) .00 7011900) .00 0.OOOOOE+00 BLOWDOWN (CFS) .00 7011900) .00 7011900) .00 0.OOOOOE+00 RUNOFF (CFS) .00 7011900) .00 7011900) .00 0.OOOOOE+00 DAM SPILL (CFS) .00 7011900) .00 7011900) .00 0.OOOOOE+00 LAKE ELEVATION (FEET) 690.00 7011900) 688.54 7301900) 689.23 4.10120E+04 DISSOLVED SOLIDS (PPM) .00 7011900) .00 7011900) .00 0.OOOOOE+00 NATURAL LAKE TEMP (F) 96.39 7011900) 75.49 7201900) 84.48 5.02675E+03 LAKE INLET TEMP (F) 134.78 7011900) 84.71 7201900) 95.36 5.67428E+03 LAKE OUTLET TEMP (F) 99.97 7011900) 76.02 7201900) 85.57 5.09204E+03 TEMPERATURE FREQUENCY OF OCCURENCES 1% 5% 50% NATURAL LAKE TEMP (F) 95.8 92.2 84.0 LAKE INLET TEMP (F) 128.0 106.0 94.4 LAKE OUTLET TEMP (F) 99.0 92.5 85.1 PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE B347 OF B358 Program LAKET-PC Page : 1 Number 03.7.292-1.0 0 Date : 03/08/2000 Created Mon Oct 27 08:45:58 1997 Time : 11:15:45.39 Case iBe: LaSalle UHS (Updated Worst 30-Day Evap; Ti=96.8 F @ 1200; power uprat 1 2 070100 073000 1 1 3 1 20 4 1 0.2 5500. 0 5 690. 690. 1. 6 81.35 341.4 73.21 307.2 79.75 260.8 71.78 234.7 78.15 181.9 70.34 163.7 29.70 102.2 26.73 92.0 22.22 60.0 20.00 54.0 13.42 43.8 12.08 39.4 7 1 0 8 96.8 92.3 999 FPLANT R/I 86.0 TPRISE s/I 35.26 28.79 16.68 16.28 15.32 14.97 14.53 14.29 13.88 13.45 13.30 13.30 13.30 13.24 12.73 12.73 12.57 12.43 12.24 12.02 12.02 12.02 12.02 12.01 11.49 11.49 11.49 11.49 11.49 11.49 11.49 11.49' 11.09 11.07 PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE B348 OF B358 Program : LAKET-PC Page : 2 Number 03.7.292-1.0 0 Date 03/08/2000 Created Mon Oct 27 08:45:58 1997 Time : 11:15:45.44 11,07 11.07 11.07 10.87 10.86 10.86 10.50 10.50 10.50 10.50 10.50 10.50 10.50 10.50 10.50 10.50 10.50 10.50 10.50 10.50 10.50 10.27 9.99 9.99 9.99 9.99 9.99 9.99 9.99 9.99 9.99 9.99 9.99 9.99 9.99 9.99 9.99 9.99 9.99 9.99 9.72 9.70 9.70 9.70 9.70 9.70 9.54 9.54 9.54 9.54 9.54 PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE B349 OF B358 Program LAKET-PC Pag e : 3 Number 03.7.292-1.0 0 Dat e : 03/08/2000 Created Mon Oct 27 08:45:58 1997 Time : 11:15:45.44 9.54 9.54 9.54 9.54 9.54 9.54 9.54 9.40 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 9.19 PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE B350 OF B358 Page : 4 Program : LAKET-PC Date 03/08/2000 Number 03.7.292-1.0 0 Time : 11:15:45.44 Created Mon Oct 27 08:4S:58 1997 9.19 9.19 9.15 8.85 8.8S 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.85 8.72 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.70 8.S2 8.49 PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE B351 OF B358 Program LAKET-PC Page 5 Number 03.7.292-1.0 0 Date 03/08/2000 Created Mon Oct 27 08:45:58 1997 Time 11:15:45.50 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 8.49 PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE B352 OF B358 Program LAKET-PC Page : 6 Date : 03/08/2000 Number  : 03.7.292-1.0 0 Time 11:15:45.50 Created Mon Oct 27 08:45:58 1997 8.49 8.44 END PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE B353 OF B358 Program : LAKET-PC Page : 7 Number  : 03.7.292-1.0 0 Date : 03/08/2000 Created : Mon Oct 27 08:4S:58 1997 Time : 11:15:45.83 Case 18e: LaSalle UHS (Updated Worst 30-Day Evap; Ti=96.8 F @ 1200; power uprat RUN 30 DAYS FROM 70100 TO 73000 PLOT FILE OPTION : 1 CYCLE FLAG: 1 WEATHER FILE OPTION: 1 ANEMOMETER HEIGHT 20.00 DENSITY: 62.40 SEEPAGE: .20 LAKE LENGTH: 5500.00 INITIAL LAKE ELEVATION 690.00 DRAWDOW1N CURVE ELEVATION TOTAL AREA TOTAL VOLUME EFF AREA EFF VOLUME 690.000 81.350 341,400 73.210 307.200 689.000 79.750 260.800 71.780 234.700 688.000 78.150 181.900 70.340 163.700 687.000 29.700 102.200 26.730 92.000 686.000 22.220 60.000 20.000 54.000 685.000 13.420 43.800 12.080 39.400 PLOT FILE FREQ 1 INCREMENTS AT 0 HOURS INITIAL FORCED/NATURAL LAKE TEMPS. = 96.80 92.30 WEATHER STATION ID 0. PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE B354 OF B358 Program LAKCET-PC Page : 8 Number 03.7.292-1.0 0 Date : 03/08/2000 Created Mon Oct 27 08:45:58 1997 Time 11:15:45.83 Case 18e: LaSalle UHS (Updated Worst 30-Day Evap; Ti=96.8 F @ 1200; power uprat FPLANT 70100 - 73000 R/I 86.000 TPRISE 70100 - 73000 S/I 35.260 28.790 16.680 16.280 15.320 14.970 14.530 14.290 13.880 13.450 13.300 13.300 13.300 13.240 12.730 12.730 12.570 12.430 12.240 12.020 12.020 12.020 12.020 12.010 11.490 11.490 11.490 11.490 11.490 11.490 11.490 11.490 11.090 11.070 11.070 11.070 11.070 10.870 10.860 10.860 10.500 10.S00 10.500 10.500 10.500 10.500 10.500 10.500 10.500 10.500 10.500 10.500 10.500 10.500 10.500 10.270 9.990 9.990 9.990 9.990 9.990 9.990 9.990 9.990 9.990 9.990 9.990 9.990 9.990 9.990 9.990 9.990 9.990 9.990 9.720 9.700 9.700 9.700 9.700 9.700

9. 540 9.540 9.540 9.540 9.540 9.540 9.540 9.540 9.540 9.540 9.540 9.540 9.400 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9 .190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.190 9.150 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8.850 8.720 8.700 8.700 8.700 8.700 8.700 8.700 8.700 8.700 8.700 8.700 8.700 8.700 8.700 8.700 8.700 8.700 8.700 8.700 8.700 PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE B355 OF B358 8.700 8.700 8.700 8.700 8.700 8.520 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.490 8.440 PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE B356 OF B358 Program LAKET-PC Page : 9 Number 03.7.292-1.0 0 Date 03/08/2000 Created Mon Oct 27 08:45:58 1997 Time : 11:15:45.94 Case 18e: LaSalle UHS (Updated Worst 30-Day Evap; Ti=96.8 F @ 1200; power uprat SEASONAL

SUMMARY

FOR SUMMER ( 6/1900 - 8/1900 ) QUANTITY MONTHLY AVERAGES AVERAGE JUN JUL AUG VALUE LAKE SEEPAGE (CFS) .00 -. 17 .00 -. 17 TOTAL EVAP (CFS) .00 -1.80 .00 -1.80 NATURAL EVAP (CFS) .00 -1.18 .00 -1.18 FORCED EVAP (CFS) .00 -. 63 .00 -. 63 PRECIPITATION (CFS) .00 .00 .00 .00 MAKEUP (CFS) .00 .00 .00 .00 SLOWDOWN (CFS) .00 .00 .00 .00 RUNOFF (CFS) .00 .00 .00 .00 DAM SPILL (CFS) .00 .00 .00 .00 LAKE ELEVATION (FEET) .00 689.23 .00 689.23 DISSOLVED SOLIDS (PPM) .00 .00 .00 .00 NATURAL LAKE TEMP (F) .00 84.30 .00 84.30 LAKE INLET TEMP (F) .00 95.11 .00 95.11 LAKE OUTLET TEMP (F) .00 85.36 .00 85.36 TEMPERATURE FREQUENCY OF OCCURENCES 1% 5% so% NATURAL LAKE TEMP (F) 96.0 91.7 84.1 LAKE INLET TEMP (F) 128.0 105.7 94.4 LAKE OUTLET TEMP (F) 99.0 92.6 8S.2 PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE B357 OF B358 Program LAKET-PC Page  : 10 Number 03.7.292-1.0 0 Date 03/08/2000 Created Mon Oct 27 08:45:58 1997 Time 11:15:45.94 Case 18e: LaSalle UHS (Updated Worst 30-Day Evap; Ti=96.8 F @ 1200; power uprat CUMULATIVE SEASONAL

SUMMARY

SUMMER QUANTITY MONTHLY AVERAGES AVERAGE JUN JUL AUG VALUE LAKE SEEPAGE (CFS) .00 -. 17 .00 -. 17 TOTAL EVAP (CFS) .00 -1.80 .00 -1.80 NATURAL EVAP (CFS) .00 -1.18 .00 -1.18 FORCED EVAP (CPS) .00 -. 63 .00 -. 63 PRECIPITATION (CFS) .00 .00 .00 .00 MAKEUP (CFS) .00 .00 .00 .00 BLOWDOWN (CFS) .00 .00 .00 .00 RUNOFF (CFS) .00 .00 .00 .00 DAM SPILL (CFS) .00 .00 .00 .00 LAKE ELEVATION (FEET) .00 689.23 .00 689.23 DISSOLVED SOLIDS (PPM) .00 .00 .00 .00 NATURAL LAKE TEMP (F) .00 84.30 .00 84 .30 LAKE INLET TEMP (F) .00 95.11 .00 95.11 LAKE OUTLET TEMP (F) .00 85.36 .00 85.36 TEMPERATURE FREQUENCY OF OCCURENCES 1% 5% 50%

NATURAL LAKE TEMP (F) 96.0 91.7 84.1 LAKE INLET TEMP (F) 128.0 105.7 94.4 LAKE OUTLET TEMP (F) 99.0 92.6 8S.2 PROJECT NO. 11333-297

ATTACHMENT B CALCULATION NO. L-002457 REVISION NO. 8 PAGE B358 OF B358 Program LAKET-PC Page : 11 Number 03.7.292-1.0 0 Date 03/08/2000 Created Mon Oct 27 08:45:58 1997 Time 11:15:45.94 Case 18e: LaSalle UHS (Updated Worst 30-Day Evap; Ti=96.8 F @ 1200; power uprat TOTAL CUMULATIVE

SUMMARY

QUANTITY MAXIMUM MINIMUM AVERAGE TOTAL FLOW VALUE ( DATE ) VALUE ( DATE ) VALUE (ACRE-FEET) LAKE SEEPAGE (CFS) -. 14 7301900) -. 20 7011900) -. 17 -9.88611E+00 TOTAL EVAP (CFS) -. 48 7121900) -5.39 7101900) -1.80 -1.07149E+02 NATURAL EVAP (CFS) -24 7121900) -4.15 7101900) -1.18 -6.99473E+01 FORCED EVAP (CFS) -. 14 7011900) -2.08 7011900) -. 63 -3.72013E+01 PRECIPITATION (CFS) .00 7011900) .00 7011900) .00 0.00000E+00 MAKEUP (CFS) .00 7011900) .00 7011900) .00 0.OOOOOE+00 BLOWDOWN (CFS) .00 7011900) .00 7011900) .00 0.OOOOOE+00 RUNOFF (CFS) .00 7011900) ,00 7011900) .00 0.OOOOOE+00 DAM SPILL (CFS) .00 7011900) .00 7011900) .00 0.OOOOOE+00 LAKE ELEVATION (FEET) 690.00 7011900) 688.S4 7301900) 689.23 4.10121E+04 DISSOLVED SOLIDS (PPM) .00 7011900) .00 7011900) .00 0.0OOOOE+00 NATURAL LAKE TEMP (F) 96.58 7011900) 73.46 7201900) 84.30 5.01606E+03 LAKE INLET TEMP (F) 134 .67 7011900) 82.35 7201900) 95.11 5.6S925E+03 LAKE OUTLET TEMP (F) 99.97 7011900) 73.54 7201900) 85 .36 5.07904E+03 TEMPERATURE FREQUENCY OF OCCURENCES 1% 5% 50% NATURAL LAKE TEMP (F) 96.0 91.7 84.1 LAKE INLET TEMP (F) 128.0 105.7 94.4 LAKE OUTLET TEMP (F) 99.0 92.6 85.2 PROJECT NO. 11333-297

ATTACHMENT C CALCULATION NO. L-002457 REVISION NO. 8 PAGE C1 OF C16 Attachment C EXCEL Formulas PROJECT NO. 11333-297

ATTACHMENT C CALCULATION NO. L-002457 REVISION NO. 8 PAGE C2 OF C16 EXCEL Formulas for Table 6.1 Determination of UHS Area-Capacity Profiles 2 IF G H with No Sediment IK 3 Surface Incremental Total 4 Elevation Slice Area Volume Volume f(eet) Number (acres) (acre'eet) (acre-feet) 7 8 675 0.00768 9 15 ,..=(HS+H_10+SQRT(H8*H13 10 =F8+1 0.064 =19 111 14 =(H10+H12+SQRT('10H12))/3 12 =F10+1 0.1857 ZJ10+111 13 13 =(H12+H14+SQRT(H12*H14)/3 14 =F12+1 0.3263 =J12+113 15 12 =H14 16 12 (Adj) 3.4397 =H160I.66 17 12 (Adj) 1.66 18 =F14+1 5.1493 =J14+115+116+117 19 11 =(H18+H20+SQRT(H18*H20))/3 20 =F18+1 6.327 =J18+119 21 10 =(H20+H22+SQRT(H20*H22))13 22 -F20+1 8.1173 =J20+121 23 9 =(H22+H24+SQRT(H22*H24))/3 T4 =F22+1 9.7301 - =J22+123 25 T8 =(H24+H26+SQRT(H24*H26))13 26 =F24+1 12.0857 =J24+125 27 17 =(H26+H28+SQRT(H268H25))i3 28 =126+1 14.75 =J26+127 29 .....8 =(H28+H31+SQRT(H28"H31))/3 30 6 (AdJ) -0.84 31 =F28+1 29.6984 =J28+129+130 32 5 =1-131 33 5 (Adj) 32.3376 =H33"0.67 34 5(Adj) 19.54 35 =F31+1 77.3331 =J31+132+133+134 36 4 =(H35+H37+SQRT(H35"H37))/3 37 =F35+1 78.9604 -J35+136 38 3 =(H37+H39+SQRT(H37*H39))/3 39 -F37+1 80.5479 =J37+138 40 2 =QH39+H41+SQRT(,39NH41))/3 41 =F39+1 82.1516 =J39+140 42 11 =(H41 +H43+SQRT(H41*H43))/3 43 -F41+1 83.8297 1J41+142 441 45 46 49 50 51 53 57 PROJECT NO. 11333-297

ATTACHMENT C CALCULATION NO. L-002457 REVISION NO. 8 PAGE C3 OF C16 EXCEL Formulas for Table 6.1 Determination of UHS Area-Capacity Profiles L M N 0 P 2 1___ ____ with 0.5 feet of Sediment 3 _______ Suifece Incremental Total 4 Elevation Slice Area Volume Volume geet) Number (acres) (acre-feet) (acrefeet) 7 0.5 =1-1-7 8 67.5 _____0.0076 9 15 =(Ng+NlO+SQRT(NB8Nl0))13 10 l=L8+1 10.064 0 11 14 -(Nl()+N12+SQRT(NIG*Nl?) L/3 12 1=1-O+1 _____0.1857 =P10+O1 1 313 13 =(N12+N14+SQRT(N12*N1j))/3 14 =11.12+1 _____0.3263 =P12+013 1512 =N14 16 12 (Adj) 3.4397 -N16*0.66 17 12 (Aj) 1.66 18~ L14+1 5.1493 ___________________________________=P14+015+016+017 19 ____11 =(N18-.N20.SQRT(N18*N20))/3 20 =1-18+1 6.327 -1318+019 21 10 = N20+N22'-S RT N20*N22))/3 22 =L.20+1 8.1173 =P20+021

    -f             9                                      =(N22+N24+SQlTl(N22*N24))/3 24 -1.22+1                         9.7301                                                                                          =P22+023 25        __    8                                      -(N24+N26.SQRTQ'124*N26))/3 29 =-L2-4e-                        12.0857                                                                                         =P24+025 27- ___            7                                      =(N26+N2&.SoRT(N26¶N28))/3 =-2 6 +1                       14.75                                                                                           =P26+4027 26             6                                      =(N28I-N34+SQftT(N28-N34))13 30                      6(AdD                             -0.84 31 ____                (0.8MB)                            -(N28.N32.SQRT(N28-N32))-(L324-28)I3 32686                __        __=N20+(N34-N2eyr(L32-L28)  ______________________________=P25+031

____ &6 .=(N32+N24.SQRT(N321434))*fL34-L32)I3+N34(L34.L34) 34 =L28+1 29.6984 -P28+029+030 3-5 __ 5 =N34 316 5 (AdI) 32.3376 =N36'0.67 37 ____ (AdJ) 19.54 3 =L32+1 _____=N34 =P32e033+030.0.2537*006+.0P07 39 ____ 45 =N3VL40-L38).(N40.N42.SQRT(N40W42))'f 142-140)/S 40 =1.34+1 ____77.3331 =P34+035+036+037 T ___ 4=(N40+N44+SQRT(N40*N4))/3 _____________ 42 =L38+1 _____N40+(N44-N40)f(L42-L40) =Pa8,O39+0 7463*aOas5o*037 431 1__ 3&4 =(N44,N46.SoRT(N44-NS~r(u8.U4)I34(N42.N44+SQRT(N42*N44)r(L44-LA2)I3 44 =1-40+1 I___ 78.9604 =P40+041 451 13 (N44+N4&.SORT(N44*N45))13 46 =L42+1 I=N44+(N48-N44N(LA8-L44) =P42.043 w __ 2&3 =(N48iNUO#SQRT(N48NBO)rNL6O-L48)13.(N46+N48.SQRT(N46-44)r1L48-4A6)3 4W =L4-41 ____ 80.5479 =P44+045 4W 2 .(48.N51.S0RT(N48*NS1))/3 fftZ46+1 _____=j48+(N51-N48)(L50-4A8) =P46+047 -g =481 ____ 82.1516 =P48+049 PROJECT NO. 11333-297

ATTACHMENT C CALCULATION NO. L-002457 REVISION NO. 8 PAGE C4 OF C16 EXCEL Formulas for Table 6.1 Determination of UHS Area-Capacity Profiles 1 0 1 R I S T U ( v 2 with 1 feet of Sediment 3 Surface Incremental Total 4 Elevation Slice Area Volume Volume (feet) Number (acres) (acr-feete) (acre-feet) 7 676 6 0.0076 9 15 .-(SB+S10+SQRT(S8*S10))/3 0 =Q8+1 1 0.064 =T9 11 14 =(S10+S12+SQRT(S10"312))/3 12 =010+1 0.1857 =UI*+T11 13 13 =(S12+S14+SQRT($12*814))/3 14 =012+1 0.3263 =U12+T13 1 12 0.33 16 12 (AdD 3.4397 =S16"0.66 17 12 (AdD 1.66 18 =014+1 5.1493 =U14+T15+T16+T17 19 11 =(S18+S20+SQRT(SI8320))/3 20 =018+1 6.327 =UI8+T19 21 10 =(S20+S22+SQRT(S20"S22))/3 22 =;020+1 8.1173 =U20+T21 9 =(S22+S24+SQRT(S22*S24))/3 24 =022+1 9.7301 =U22+T23 25 8a=(S24+S26+SQRT(S24*S26))/3 26 =024+1 12.0857 wu24+'r25 27 7 =(S26+S28+SQRT(S26*S28))13 28 =26+1 14.75 =U26+T27 29 16 =(S28+S31+SQRT(S28S31))/3 30 6 (Adj) 1-0.84 31 29.6984 =U28+T29+T30 32 =028+1 5 29.7 -W 5 (Adj) 32.3376 =S33-0.67 ,_, 31 =032+1 5 (Adj) 19.54 35 77.3331 =U31+T32+T33+T34 36 =034+1 4 =(S35+S37+SQRT(S35*S37))/3 37 78.9604 nU35+T36 381=036+1 3 =(S37+S39+SQRT(S37*S39))/3 , 39 80.5479 =U37+T38 40 2 =(S39+S41+SQRT(S39*S41))/3 41 82.1516 =U39+T40 421 431 441 451 46 47 48 49 51 52 54 57 PROJECT NO. 11333-297

ATTACHMENT C CALCULATION NO. L-002457 REVISION NO. 8 PAGE C5 OF C16 EXCEL Formulas for Table 6.1 Determination of UHS Area-Capacity Profiles w x Y z AA 2 with 1.5 feet of Sediment 3 Surface Incremental Total 4 Elevation Slice Area Volume Volume I (feet) Number (acres) (acre-feet) (acre-feet) 7 0.5 =1-W7 " 8 676.5 0.0076 9 15 =(YS+Y10+SQRT(Y$"YI0))I3 1'0 =W8+1 0.064 =z9 11 14 =(V10+Y12+SQRT(Y10"Y12))/3 12 =WI0+1 0.1857 =AA10+Z1 1 31 _ 13 m(Y12+Y14+SQRT(Y12"Y14))/3 14 =W12+1 0.3263 =AA12+Z13 15 12 =Y14 16 12 (AdD 3.4397 =Y16*0.66 17 12 (AdD 1.66 18 =W14+1 1 5.1493 =AA14+Z1S+Z16+Z17 19 11 =(Y18+Y20+SQRT(Y18"Y20))/3 2-0 =W18+1 6.327 =AA18+Z19 21 10 =(h20+Y22+SQRT(Y20*Y22)),3 22 =W20+1 8.1173 =AA20+Z21 273 9 =(Y22+Y24+SQRT(V22*Y24))/3 24 -W22+1 9.7301 =AA22+Z23 2 8 =(Y24+Y26+SQRT(Y24*Y26))A3 26 =W24+1 12.0857 =AA24+Z25 27 7 =(Y26+Y31+SQRT(Y26*Y31))/3 28 (0.5)7) _ (Y26÷Y29+SQRT(Y2W"Y29)}*(W29-W26Y3 29 685 =Y2$4(Y31-Y26)r(W29-W26) -AA26+Z28 30 6&7 =(Y29+Y$1.SQRT(Y29*Y31))*(W31-W29)f3,(Y31+Y34+SQRT(Y31Y34))"(W34-W31)I3 31 -W26+1 14.75 =AA26+Z27 32 6 =(Y31+Y36+SQRT(Y31*Y36))/3 _3 __ 6(Adj) -0.84 34 .W29+1 _____=Y31÷+Y36-Y3I)*(W34-W'I) =AA29.Z30 35 1 _ _ 8 =(Y34÷y36.SQRT(Y34WY36))-(WS6-W34+Y35W(W40-W36) 36 =W31+1 29.6984 =AA31+Z32+Z33 37 5 =Y36 38 5 (AdWp32.3376 =Y38"0.67 39 5 (Adj') 19.64 40 --W34+1 5Y36 =AA34+Z35÷Z33+O.2637Z38.O.6*Z39 41 4&5 =Y40*(W42-W40)+(Y42+Yd4*SQRT(Y42Y44)r(W44.-W42 )3 42 =W36+1 77.3331 =AA36+Z37+Z38+Z39 43 4 1 .(Y42+Y46+SQRT(Y42-Y46))/3 4=W40+11 :Y424(Y46-Y42)"(W44-W42) -AA40+Z4l+0.7483Z38÷O.5"Z3S 451 3 _,4 =(Y46+Y48.SQRT(Y48*Y48))*(W48-W46)/3+ff4+Y4S.SQRT(Y44*Y46))(W46-W44)/3 46 =W42+1 78.9604 =AA42+Z43 47 3 =(Y46+Y5O+SQRTYf468YS0))/3 48 -W44+1 =Y46+(Y50-Y46*(W48-W46) =AA44+Z45 4,9 2&3 (Y60+Y62.SQRT(Y5O*YE2))r(W52-W6O)I3.Y48+Y50SQRT(Y48.YS0))WSO-W48Y3 -W =W46+1 80.5479 =AA46+Z47 51 - 2 =(YS0_+Y53+SQRT(Y50Y53))/3 52 =W48+1 I =Y60'aY63-YsOr(W62-W50) =AA48+Z49 53 =W1o50+1 12.1516 =AAO+Z51 54 56 57 PROJECT NO. 11333-297

ATTACHMENT C CALCULATION NO. L-002457 REVISION NO. 8 PAGE C6 OF C16 Excel Formulas for Table 7.2 Plant Temperature Rise A I a 0 E .. G H I S Fbwrate 46 _________ ot asFlow -C1C23600 lbW~h Starthn Erti" VTep Hed at et HestAdded TOtaHeot Geerfts8m989 This Thime e: per Thirrstep inmisstep Added Heat Added Heat Added (hr). (hr) Rbe (BU-Eu

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D70+/- NO 3+/-58S3),B65]_ - 16 69 .860 1_-865+3 - -066/051/02 .ERBAS - .6-65GB - .6601m6_ I-tw~Totrral 18+/-8731,.0+/-7rR0WsSaS=s$73),SW8 -W6 167866 I_.8683 15P"4wA002 - FS7.M __-070167 __ 2 jf l T oteI'rcb,'SZ73' .'D73*.ROWS(52873 S 67 - .466-M 66 -867 .6743 1__ -DSWJ.066/05/052 . -POS-Fe - .068068 __ h*r ~Toter.-LtoteF.8z87 '0+/-73',ROWf3MWs5+/-8731 B6) 116 69 I-866S -0868+3 .069/051/05 .- BO869-885 -PS969-SI .069.4189 __ kp~rT ro'Tter'8 D0+/-07?R0W8(S583873).SS9) -14 1-704" I-ON -9693 -D.70M/M5/5 - -El70-870,= ___F70-M6 .070+17 __!LA -re tar,-azB?3-,'07? ,R0MS$Z$557)7)- 16 711.970 .803 071M051/752 171 I___P7- -G.71171_ TeteF'087 '00?N~CSs3).8701) I- 57 72 871 -- 97143 -Li V=205/5

• 8272-A7___ *72-F71 .021 =+_ r __* 2 9 -'trTotiraSgr'0B3'+/-7-M M M 3a+/-SS).872).147 73 .972 - .07/05105 -E373-A73 F73.F72 -. -0730173 __ T ,eTtr.'828az73" '0+/-7?gffl .0S55+/-9773) 1-M7 4an3__872+3

_ -973.3 -D-74/051/052 .374/874-74) .p74p73 0740174 Sbm-s Ter-rbsa3-DDrowMa ToteI-H 75 ;.B74-76 .B76

                       .74+3
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B,'0+/-07? ROWS(5855853)876) I-H074 01H75 -it7-76 1-81164 -1.77/051/52 _-377 6877-A77) .-1-/-FT6 .0770177 - 8k 'jP~~dflToter.8+/-73.o+/-0 SMI(GM557)67) -147

              .87_ 8743                    .0781051/05                    A6778-8.76)                                             07.178 -vhftnte3U
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     ;B7087            -198643             .079MIAM05               -37 8KM791                        -P79-PF78 .0790179                            1- "2-orrt-B!p0P38                            .'0+/-73? NOWS(585+/-5853)87                    01H78 60 -M7                 -879+3              w_  0601051/05
                                                     =I

• J .1-0-7 .060080 -a.s otrrTotar.82B73 '0+/-07?, BSU IB -M.47 it mg3 _ 8.90+3 -DUG1/01/0M C8fl88.A51) .- 861-F&0 .0810181 "hfrp Tcfter, r~ter'87Y' '02p7 NO5(8+/-553)81O)- a-82 .861 .81+3

                      -8              - 082i051/M5                 -EM82A2                            .FS8I-8                - .82+4182       __                    I),TotgrL76ZB73-0Z! R0WS/S85+/-5S3j862) -H081 83 48S2                 -88243

• 1/05 - E83/186383] uP63-M8 .0634463 -
• p~-*WTotaF' Tte-8+/-7?'0+/-0Z7? NOWS(585+/-59573)883) -H--82 84 -88 .53+3 M6 -owosI0s2 _ -F84-4%S 1384.144 ___ * -Totercr., Tddrr8+/-83'0o7.r, ftW W(85S673B4) -48 Las5 __ -94+M105L -EW94865,455) - P64.05445__ !foer-____ 18 PROJECT NO. 11333-297

ATTACHMENT C CALCULATION NO. L-002457 REVISION NO. 8 PAGE C7 OF C16 Excel Formulas for Table 7.2 Plant Temperature Rise i C 15____ _ 1 E_ I _ _ _ _ _ _ _ _ __ _ _ _ _ _ _ _ _ rq "*at Ribs Tom Hoat HeatAdded Generated Twnpeature per Thuseep ITkne Tkne Rbes in Thetebp Added HettAdded HodaAdded j(1hr) (11, (Ola) I (81W~r (eTU) (STU) 6 w86* !FBs.F85 EHSS I-Bw I-888+3

                                                                   ,F91.Fg0      I-G91.H91 1-88,1.3                                                    1 1-994+3 A'                                            ,149S T2:r
                                                                                   -G1011+H101 I-WTnurPlTotar,'T       82:73"- )2R 1-a101      J-410t+3                                                                                                             HE.1
                                                                   . F10w1=      1-0106+Ht06
                                                                                                                                                           -1H107
                 -B108+3
                                                                                                                                                                   -HO I-EMKI(11A111)       i~d~1-Fi F10    I-G111 01 1-8113      1-B113+3                                                                                                                                        .1
                                                                                                                                                            -H4114
                                                                                  -G118+H116                                                                 -1416
    -8118                                                                                                                                                          -Nc
                 -0118+3                                                  P1
   -8119                                                                  -F
                                            -E121A(B121-A121)    I-FI21-F120      -,                                                                       -H4120
    -8121                                                                                                                                                          -Hl iNi
   -8122                                                                                                                                                      -4121-111
                                                                                                                                                           .1H122
   .8123        -8123+3                                                                                 -3hty~fT~h,-ab,-ZB73,                                       N
   -8124                                                                                        !!~tX1ct ,Toter, 2:873",                                   -14123
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   -0125                                               3-A126. IF126-Fi                                                                                          -Hl
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   -8125                                               T.A12"/    -I
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   -8131
   -8132                                                                                                                                                   -14131
   -B0133                                                                                                                                                    -H132
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   -8135                                                                                                                                                   7-1134
   -8136
   .8137                                                                                                                                                    -HI37
   -8138                  -Dl3eIG1Q~lK                           IF139-F138     1-013981139
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M-A142) I-F142-F141 1-, -H1424

                                                        -Ai431   RR4ý"U2          -ýl                                                                       -H144 4-A144)   Is14-,    14       61-44+144
                                                                                                                                                            -H144 I-844       I-B144*3
                                                                                                                                                             -144 I-F147-F148      ,,-147+H147
                -614743                                                                                                                                     -H1474
                                                                                                                                                            -H144
                                                                                  ,,504+H150                                                                -H144 1-H144 q1 J-H151
  -8152                                                          I-F1
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                                                                                                                                                             -14156 F-F18.157 I  .,158          l-5168+3$                                                                                                                                   .14158 I,,4:16-Ft60   1,1 4=151                                                                                                                             0.2:
                                                                  -F164-F163                                                        el:.
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p IB1.61684 ttl PROJECT NO. 11333-297

ATTACHMENT C CALCULATION NO. L-002457 REVISION NO. 8 PAGE C8 OF C16 Excel Formulas for Table 7.2 Plant Temperature Rise IA a I .I DE F G I 1.aAdded I Endba . Heat PAWe Total Heat Geneeatd SuuR"

       - (h)         Timn          Ri~e perThaemp       I bin    etp         Added                               Heat Added             Heat Added (hr)                           (8Trumhr)           Or"              (BTU)

(Bill) (Dog F) 1-S169 L, -H169 L.AM7) I-NI73 i=9174+3 4 -H 174 1 pTtr.1'obfr,-sz73.,i

                           -D178,S$110,2                           -Ft78-F177 sm~r  Twr,-arctar,-a2B73-.Ct "hfm2(Tetar.-Totr,-BzB73¶
                                                                                                   -a                                                 ~H175
                                                                                                   -a
     ~-58     1-1382+

1-8195 1.8186+3

                                                                                                                                                    .HI18M PD1181011102      I-51888BiWA188)     1-F188-Fia                                                                 ).B188) 1,B190+3                                                                                                                               -H190
                                                                                                                                                     .IH191
                                                                       '193-F192                                                                     WHM9 1g4-FI93                                                                      -H4193
                           -019531/2                                   r195-Flg4    -G1095+H-95                                                     -H194
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                                                                                                   -e                                                *1196 119a             ,B197+3                                                                                                                            -H197 I91t8+3 199+3                                                 0-F199                                                                      .H199 I-P202J201
                                                                                                                                                      .H=0 1.-8204                                                                                                                                            .HM0
                                                                                                                                                    -K206
                           ,D207G$ltG$2       -i
                                                                                                                                                    .H206 19                                                  -14207 I8210 1-8211     1-8211+3                                                                                                                              -14211 mH212
                                              -E2141(8214,A2141                    IG214+H214
                                                                                                                                                    -1H215 I.8216                                                                                                                                           -H4216 7   i                                                                                                                                     &H4217 3  l-6218-3                                                              I'i                                                              -H1218
                                                                                                                                                    -14219 A=0
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                                                                                                                                                    -14227
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u~u D2C -=H231 D2I~

    -8233                                                                                                                                            =H1232
    -8234                                                                                                                        D2.C               -H4233 D2:D 18238                                                                                                                                           -H1236
    .B237       .8238+3.ý                                                    238 1-0239+4239                                     D2I~
                -829403-                                                                                                         02C
                -8241+3~                                                   F241                                                  D2:~
                                                                           $242                                                                        14242 "243                                                                      -1W243
    -B244      -2W44+3                                                     $2" 12481-9245                                                                                                                        02~

02C fl21 I I-F'5-F=26 PROJECT NO. 11333-297

CALCULATION NO. L-002457 ATTACHMENT C REVISION NO. 8 PAGE C9 OF C16 Excel Formulas for Table 7.2 Plant Temperature Rise A B c 0 E I F 9 H Sbuftig Endft Pl1anteNe Ref HedAdt d Total Heat 089Mated senil TsPer Rhos Thmedep InTisstep Added Hoag Added Hest Added (lit)g Elit (TUfl (MMV (SMU (STU) (7J

    ;52543            BM-85+3 0206W1/06              8254/ 264              -F254M          -. 1254+-NMtrTtl.+/-B3"+/-7.~PlS8+/-~7)86/                                                          H5
    .8254 __ .254+3          - .255/061/012

• 4256.P264 .02864*425 rb"Ttl.873"."o+/-7ViROWNSMOM567),9613 4*254

    .256
    ;OR             .8255+3 - .260162-MM82682                                *P5-8256 .0266+4425            .alntero~ter."Toter."B+/-873¶"02:073".ROWYS(1M862               73).B25)      *H1255 2671-825       6

_8256+3 ""05 WSW101 I-027 8257,AZ6 -F25?-F=-- -0267?+142 -elftrite orr@otar.82+/-873'""0+/-W.ROW8(6862S86731,82 1"C566 2581.B257 _ =827+3 -02581051102 I-= 252558M .P88F2 - 026+45 - MCbfr-vr,-Bol""2.87T3" -. 0twS(63szuv4)82681 - 415

            =858__=255+3      =0259/061/06       -E2=      8259,A28         -F259-P258      =026+46             __      T~cotal".Totel"."82.83"."0+/-073"ROW 862:8173.8259)             -      _
            .85 =29+            02600$/6 Ml60dj25                                           'M6.P5 -020260          -alntem roatarfter.*BZ.                007"RW(8S613.26)=45 1.9260 __.88+3-06/OI/6                          461         14281        -F261+F6        -0231+H6           e        rorl""8+/-73 '0+/-073" RW(82S6361)-                                   H260 282 .11261 -13.26143 06GSitM                       -Z86A)-22-I-22H6                                                     Totel""To,"8BZB3= "0+/-073 ROWS482:63)862                         a=8
    .am5            -026243            S0268/061/062263f                                    ý                             hel.oel.8+/-7 P.       r4*4253.-0+/-7"           OS68+/-8S3.2631                      -W
     -1263._ 1.533+3 -02641GSI/12-~B6-2$)                                    *-*-           -G04H           3"                 ,T0!ear"TBtF.8+/-73""0+/-073 R08666s3)86 -+45 265.8B254 __ =2643 .0799/9$                            MB26-A2                              -Go65+             elnte+2
                                                                                                           .TMprgroeP."873".DZi~7'                          ,AW(8+/-87)82651 - -4M4 268-BM26 _ 5 265+3 =02660031/M6                                        .526 825               G65=26266+6 I-nw~         rtel 1 'Tatel'B2:973".0+/-073"ROWS(3sS+/-68673)           88268SO)- 4*2B65 2.18266 __-8286+3            WD2027/MMU01        -4 /(267A                -P267-F26       -0267+M267      *          ~toMUtal-LToftrP"B28-07     3
                                                                                                                                                *,Z0 ROWS66573.27                       .msmi -"

• 2681-826 .9=6+3 282684M) 106/6I62=28 =P266-P267 -G268446 elfta oa" 2832P!ROS8+/-87)86)--46 How 268 81 8 _ 8284 -0289M161062 = 265-426 .P268P268 .9260+446 -elnter TotlTtaal". eu R SUMSM6873.889 1-442
• 27=826

__ 2663 .079/01/02 =827 8278-4270 -270+-"6 G07.47 .8 Totacl

• Tot 9+/-873 "3 A ROSIS2:853.87)

M2 - 142 2711-18270 .270+3

                    -_        -02711051103         .8271 8271-4271          -F271+7270      =0271444271     -ektrte Tot~r'val".Tot!     "273 A 02:07 !RgMS(BS2:6863).Bz71)                420-
                                                                                                                                                                                          =

2718271 D_=213.2721GIG6/M =87/2247 97"2127272.422 elAt rTottrl."Tztel""82:8730+/-7?ROWS(SB6667)B72 =47 27314272 I-B=272+3 -02731GS1/G12 =8273f(8273&A273) -P273-6972 =073+27 =ltms TotiN.Ir*tS! 2:73

• 20 ROWVS(IS6687).8273) I14272 274=8273 .8733 -027401032/ .8274/ 8274-42741 1- F4-P273 .0274+ 477 " ~e""oe 8:7 DD3R/'866663.24 12 176.8274 -1=8274+3 0D276/M101 E27187A275 -P276+P274 =0275+H4275 smrT0%rMWteP8287- .-0+/-073.!RcWS(S6iS3.27M-=47 2761-8275 1-8276+3 .0276M06lM6 =82L" U7.47 -f76.P276 =0276+.427. .a .c 0+/-073.R0WfS(8SZ- 71.276) - =U26

                                                                                                                                                 .87
                                                                                                                                                 .oe 27718276 __ =82643                       JIMhS106  -82771       277          -P277P6 .-0277+H77= I-                    2Tatel¶=Toter "+/-83* 0+/-07        ,'D3 ROWS(68+/-88S3).8277           I- 27 278.8277 _1277+3                02W0101   278/G~                8 )7-A7     -F7-P2WF7       =078428                      amtal¶Tote!             .fl +/-073 ROWS(SU6+/-856$73).8278) -=11277~

27gi=8278 =874

                    -or         0279/06/96        .8279/279.427             -F2MP-278 =0279.44279                       ror,-rofter "73          .0+/-073 ,'ROW8(6862:686731.827) - =427 2801S=879B_=279+3              .028651/G3          .8280/ 280A280              PF280+M-27 =0280.126          -Bintbp                   I,"+/-7"-+/-7~OS66663.20   R.14s2H79 28114280             .820+     .2816/2   I         .8281 8281-4281           =P261.F28       -G81281+1      I-a er~ Total"Trte! "8+/-7?. 0+/-D~,07f3             .R     W8S6:687381          I-=28 289.8281              8=821+3 =02821961102 .82821 282!-A28 =P282-M8                         -0282+14282      =ette orrtel". Toter "8873".0733ýOr .O8sun687L8).                         -=1,1281 2831-822 _ -8282+3                       V0830812                           .283-F282
                                                                           -21`883483       .08328383       -e                   Tta' 8+/-73". 0+/-Dr,073 nTtabl'.                              (    SW)813 -MMo~

284.283 __B=283+3 =08/8/3 F284-1`293 =0G284141284

                                                                          .88/-8448                         -e               r.ortar,*Bote2:B7W3"[M        '.1R0W/862:883).B284) -H1283
    -828M4 -_      .284.3     .0286/01062            82&W182*A5)48         -F285.F -          G24.261285+H  .aln ow~-To~,rta,' B2:8k73=.-0+/-0743 0a48(= S:3U3"28).                     - H284 2 82805__ 28+3 =28/96S02                        .8Wj286826-AM             -288 40 -G95=288+14288 IP8                 .ll            rTote! "8+/-873".007 .ROW3R9S6873.86                          =42
    =82886_1 428543 7-0287/06/06                  -E287 B287-8             -M28-P288       =028741287

• hM~ Toal"To.! "8+/-'B873". 0+/-073.RaW3(S86+/-6867).8287) :H=286 2 82W7 __ 827+3" =F8/ 428a,8801)6

                                                                           .2MF287         =0M+288.14288                LrTerrote! "82:873!". 00773 RONS($B6673).828) - .1287 JIG=/6103            8               F289.P288 .028944428
                                                                           -29                                 x1fWr~FTdfr "8Z9.                    +/-7 3 ,Z~rR086S8732)               - HM8 2a=88 _            826W.
    =-8289_132819#3 - 09/6/6                                20               FI90-P28      -0290004201     *o!autr      Totar. T                 2 e2!"6Z73,z"A          -NV[$8$ZBMB            -H=28
                   =880. _ -. 021/01102 -=821 291=820                                       291 421)       =F291+'O-P2    0=        H029421-eu)Ta          rotl."Totel."8B73 A PD2!0        .RaWS(S86+/-686738291) -K=149 29,                        aos Hea01=t La                     409______________________

PROJECT NO. 11333-297

ATTACHMENT C CALCULATION NO. L-002457 REVISION NO. 8 PAGE C10 OF C16 Excel Formulas for Table 7.2 Plant Temperature Rise A B C D E F Combined Integrated Sensible Total Time Time Generated Generated Heat Heat Available Heat Available (seconds) (hours) Heat Load (Btu) (Btu) (Btu) (Btuhr)( 2 0 0 2.44E+1 0 0.OOE+00 1.22E+09 1.22E+09 3 1.00E-01 2.78E-05 2.42E+10 6.75E+05. 1.22E+09 1.22E+09 4 1.50E-01 4.1 7E-05 2.35E+10 1.0iE+06 1.22E+09 1.22E+09 5 2.OOE-01 5.56E-05 2.28E+10 1.33E+06 1.22E+09 1.22E+09 6 4.OOE-01 1.11 E-04 1.83E+10 2.47E+08 1.22E+09 1.22E+09 7 6.00E-01 1.67E-04 1.45E+10 3.38E+06 1.22E+09 1.22E+09 8 8.00E-01 2.22E-04 1.21E+10 4.12E+06 1.22E+09 1.22E+09 9 1.OOE+00 2.78E-04 8.35E+09 4.68E+06 1.22E+09 I1.22E+09 10 1.50E+00 4.17E-04 6.11E+09 5.69E+06 1.22E+09 1.22E+09 11 2.00E+00 5.56E-04 3.88E+09 6.38E+06 1.22E+09 1.23E+09 12 4.OOE+00 1.11E-03 1.91E+09 7.99E+06 1.22E+09 1.23E+09 13 6.OOE+00 1.67E-03 1.60E+09 8.97E+06 1.22E+09 1.23E+09 14 8.00E+00 2.22E-03 1.50E+09 9.83E+06 1.22E+09 1.23E+09 15 1.00E+01 2.78E-03 1.40E+09 1.06E+07 1.22E+09 1.23E+09 16 1.50E+01 4.17E-03 1.30E+09 1.25E+07 1.22E+09 1.23E+09 17 2.OOE+01 5.56E-03 1.23E+09 1.43E+07 1.22E+09 1.23E+09 18 4.00E+01 1.11E-02 1.09E+09 2.07E+07 1.22E+09 1.24E+09 19 6.OOE+01 1.67E-02 1.02E+09 2.66E+07 1.22E+09 1.25E+09 20 8.OOE+01 2.22E-02 9.66E+08 3.21E+07 1.22E+09 1.25E+09 21 1.001E+02 2.78E-02 9.45E+08 3.74E+07 1.22E+09 .1.26E+09 22 1.50E+02 4.17E-02 8.71E+08 5.OOE+07 1.22E+09 1.27E+09 23 2.OOE+02 5.56E-02 8.31E+08 6.18E+07 1.22E+09 1.28E+09 24 4.OOE+02 1.11E-01 7.44E+08 1.06E+08 1.22E+09 1.32E+09 25 6.00E+02 1.67E-01 6.95E+08 1.46E+08 1.22E+09 1.36E+09 26 8.00E+02 2.22E-01 6.59E+08 1.83E+08 1.22E+09 1.40E+09 27 1.00E+03 2.78E-O1 6.30E+08 2.19E+08 1.22E+09 1.44E'1+09 28 1.50E+03 4.17E-01 5.77E+08 3.03E+08 1.22E+09 1.52E+09 29 2.00E+03 5.56E-01 5.39E+08 3.80E+08 1.22E+09 1.60E+09 30 4.00E+03 1.11 E+00 4.57E+08 6.57E+08 1.22E+09 1.88E+09 31 6.OOE+03 1.67E+00 4.18E+08 9.00E+08 1.22E+09 2.12E+09 32 8.OOE+03 2.22E+00 3.95E+08 1.13E+09 1.22E+09 2.34E+09 33 1.00E+04 2.78E+00 3.79E+08 1.34E+09 1.22E+09 2.56E+09 34 1.50E+04 4.17E+00 3.53E+08 1.85E+09 1.22E+09 3.07E+09 35 2.00E+04 5.58E+00 3.37E+08 2.33E+09 1.22E+09 3.55E+09 36 4.00E+04 1.11 E+01 3.03E+08 4.11 E+09 1.22E+09 5.33E+09 37 6.00E+04 1.67E+01 2.85E+08 5.74E+09 1.22E+09 6.96E+09 38 8.OOE+04 2.22E+01 2.73E+08 7.29E+09 1.22E+09 8.51 E+09 39 8.64E+04 2.40E+01 2.70E+08 7.77E+09 1.22E+09 8.99E+09 40 1.001E+05 2.78E+01 2.64E+08 8.78E+09 1.22E+09 1.00E+10 41 1.50E+05 4.17E+01 2.47E+08 1.23E+10 1.22E+09 1.35E+10 42 1.78E+05 4.94E+01 2.42E+08 1.42E+10 1.22E+09 1.54E+10 43 2.OOE+05 5.56E+01 2.36E+08 1.57E+10 1.22E+09 1.69E+10 44 2.59E+05 7.19E+01 2.26E+08 1.95E+10 1.22E+09 2.07E+10 45 3.46E+05 9.61E+01 2.15E+08 2.48E+10 1.22E+09 2.60E+10 46 4.00E+051 1.11E+02 2.10E+08 2.80E+10 1.22E+09 2.92E+10 PROJECT NO. 11333-297

CALCULATION NO. L-002457 ATTACHMENT C REVISION NO. 8 PAGE Cll OF C16 Excel Formulas for Table 7.2 Plant Temperature Rise A B C D E F Combined Integrated Sensible Total Time Time Generated Generated Heat Heat Available Heat Available (seconds) (hours) Heat Load (Btu) (Btu) (Btu) 1 (Btu/hr) 47 4.32E+05 1.20E+02 2.07E+08 2.98E+10 1.22E+09 3.11E+10 48 6.00E+05 1.67E+02 1.96E+08 3.93E+10 1.22E+09 4.05E+10 49 8.OOE+05 2.22E+02 1.87E+08 4.99E+10 1.22E+09 5.11E+10 50 8.64E+05 2.40E+02 1.85E+08 5.32E+10 1.22E+09 5.44E+10 51 1.00E+06 2.78E+02 1.81E+08 6.01E+10 1.22E+09 6.14E+10 52 1.50E+06 4.17E+02 1.72E+08 8.46E+10 1.22E+09 8.59E+10 53 1.73E+06 4.81E+02 1.68E+08 9.55E+10 1.22E+09 9.67E+10 54 2.OOE+06 5.56E+02 1.65E+08 1.0.8E+11 1.22E+09 1.09E+11 55 2.59E+06 7.19E+02 1.60E+08 1.35E+11 1.22E+09 1.3"6E+11 56 3.46E+06 9.61 E+02 1.55E+08 1.73E+1 I 1.22E+09 1.74E+1 I 57 4.OOE+06 1.11E+03 1.53E+08 1.96E+11 1.22E+09 1.97E+11 58 4.32E+06 1.20E+03 1.52E+08 2.09E+11 1.22E+09 2.11E+1i 59 6.OOE+068 1.67E+03 1.47E+08 2.79E+1 1 1.22E+09 2.80E+1 I 60 8.00E+06 2.22E+03 1.43E+08 3.60E+1 I 1.22E+09 3.61 E+1 1 61 1.OOE+07 2.78E+03 1.41E+08 4.38E+11 1.22E+09 4.40E+1 I 62 1.50E+07 4.17E+03 1.36E+08 6.30E+11 1.22E+09 6.32E+11 63 2.OOE+07 5.56E+03 1.33E+08 8.18E+1 1.22E+09 8.19E+11 64 4.OOE+07 1.11E+04 1.28E+08 1.54E+12 1.22E+09 1.54E+12 65 6.00E+07 1.67E+04 1.26E+08 2.25E+12 1.22E+09 2.25E+12 66 8.OOE+07 2.22E+04 1.24E+08 2.94E+12 1.22E+09 2.94E+12 67 1.00E+08 2.78E+04 1.23E+08 3.63E+12 1.22E+09 3.63E+12 68 1.50E+08 4.17E+04 1.22E+08 5.33E+12 1.22E-09 5.33E+12 69 2.00E+08 5.56E+04 1.21E+08 7.01E+12 1.22E+09 7.01E+12' 70 4.00E+08 1.11E+05 1.20E+08 1.37E+13 1.22E+09 1.37E+13 71 6.OOE+08 1.67E+05 1.20E+08 2.04E+13 1.22E+09 2.04E+13 72 8.00E+08 2.22E+05 1.20E+08 2.71E+13 1.22E+09 2.71E+13 73 1.00E+09 2.78E+05 1.20E+08 3.38E+13 PROJECT NO. 11333-297

ATTACHMENT C CALCULATION NO. L-002457 REVISION NO. 8 PAGE C12 OF C16 Excel Formulas for Table 7.2 Plant Temperature Rise Interpolation - 1 Function sinterp(XSHEET, YSHEET, XRANGE, YRANGE, XYLEN, X) Set XARRAY = Worksheets(XSHEET).Range(XRANGE) Set YARRAY = Worksheets(YSHEET).Range(YRANGE) Check to ensure that the x value is within the data range. If X < XARRAY(O) Or X > XARRAY(XYLEN) Then sinterp = "x value out of range" End If The following code finds the bounding x values. i=0 Found = False If X = XARRAY(XYLEN) Then xrow = XYLEN - 1 Found = True End If Do Until Found = True If X >= XARRAY(i) And X < XARRAY(i + 1) Then xrow = i Found = True End If i=i+1 Loop The following expression finds the ratio of the x value inputs to the bounding values from the data array. xratio = (X - XARRAY(xrow)) / (XARRAY(xrow + 1) - XARRAY(xrow)) The following expression interpolates the y value data based on the 'x value input. sinterp = YARRAY(xrow) + xratio * (YARRAY(xrow + 1) - YARRAY(xrow)) End Function SINTERA2. A% PROJECT NO. 11333-297

ATTACHMENT C CALCULATION NO. L-002457 REVISION NO. 8 PAGE C13 OF C16 Equations for UHS Heat Load Plot IA B c D I EE 24500 F 1 'O I- - F

                            =((Fl+F2)*(E2-E1)+(F2+F3)*(E3-E2) +(F3+F4)*(E4-E3)i.(F4+F5)(ES-E4) +(F5+F6)(E6-ES)+(F6+F7)*(E7-E6) +(F7+F5)(E8-E7)+(F8+F9r*(E9-E8) +(F8+F9)*(E9,-                             I 2    1   I=B1+3                                                                                            !=2/3             0.0000277777777778          24300 "3- 1--2=B2+3 4
                            !LF9+F10yý/2                                                              - =0313                0.00027777777778            8560
                            =((Fl0+Fl I)*(E1 1-E10I+(F1 1+Fl2)'(El2-E1 1W2                                 I=C4/3            0.000555555555556          4080 5 11       =B4+3            =(F12+F13)*3/2                                                                 I=5/3             0.002777777778              1600                                   .    .......
            -~     -      F                                                                     -~

6 1i =15+3 =[F13+F14*3/2 I=C6/3 .10.027777777778 II - 1150 3  !=C713 1_2777777777B 833 711  !=B+  !=(Fl4+Fl6)*3/2 ____ =G7/31- ____ I=C813 2.7777777778 583 9J =B8+3 =(F16+F17)13/2 1 0/3 3

                                                                                              ... .. .... I=C9/3                                -..... =F8-(F8- FI0)(E9-E B)I(Ei10-E 8) 10 2                         =(F17+F18)*312                                                                                   6                           568 1ý122       =B10+3           =((FlB+F19)*(El9-El8)+(Flg.F20y*(E20-El9))/2                                    =C01/3           6.01                        365 1212        =B11+3           =(F20+F21 )3/2                                                                  =C12/3           9                           =F$1 I-(F$1 1-F$19)(El2-E$l IY(E$19-E$ 1) 13 2J__=B12t+ j=F2ý1+F221 /2                                -_______                                         =C13/3           =E12+3                      =F$1 1-(F$11-F$19)1(El3-E$11Y(E$19-E$1 1) 1442 =B13+3                1(2 +F231~32                                                                      =C14/3           =E13+3                      =F$1 1-(F$11-F$19)*(E14-E$1 1Y)(E$19-E$I 1) 15 12 =B14+3                 =fF23+F241*3/2                                                                  =C15/3           =E14+3                      =F$11-(FS1 1-F$19)*(E15-E$1 1)1E$19-E$11) 16 Tj        816+ý3          =(F24+F25r-3/2                                               ___                =C16/3           =E15+3                      =FS1 1-(FS1 1-F$19P*(E16-ES1 IY(E$19-E$11) 1712        =816+3           =(F25+F26r3/2                                                                   =C17/3           =E16+3                      =FS1 1-IPSI I-F$l9r(E17-ES1 1WESiO-E~lI1 1861-=817+3 193 1=B18+3                                                                                                  =;0 1/37 =E17                                =F$1 I -FSl 1-F$I9(E 18-E$1 1WES 19-E$111
                            =(F26+F27r3/2
                                                                                                            =014/3           27.777777778
                     ..         .F 2     . . .       . .           .        .          .     .                                                                F$19-(
            =19+3 --1((r28+F29Y'(E29-E28)+(2+3)E3-2)t                                                       =C20/3           =E18+3                                                 )-E$19Y(E$L9-E$ 19)
           =820+3           =(F30+F31 )3/2                                                                  =C21/3           =E20+3                       :F$19--(                  I-E$19)/(E$29-E$1 9) 2213 I=B21+3                 =(F31 +F32)*3/2                                                                 =C22/3           =E21+3                      =F$19-{F$19-F$29)*(E22-E$19Y(E$29-ES19) 23 3 2413 25 3
           =B22+3
           =B23+3
           =824+3
                            =(F32+F33)'3/2
                            =(F33+F34)*3/2
                            =(F34+F35)3/2
                                                                                                            =C23/3
                                                                                                            =C24/3
                                                                                                            =C25/3 j=E22+3 j=E23+3
                                                                                                                            ~=E24+3 I=F$19-(F$19-F$29)'(E2
                                                                                                                                                         =F$19-(F$19-F$29)y(E23.E$19)/(E$29-ES19)

____J=F$19-(F$1 9-F$29)*(E25-E$19y1( $29-E_$19) 26 4 =825+3 =(F35+F36)3/2 =C26/3 =F$19-(F$19-F$29)*(E26-E$19)/(E$29- E$19) - 1=2+ _____ 27 4 =B26+3 =(F.36F37)3/2 24 _=827+3 =(F37+F38)*3/2 =C2713 1=028/3 =522+3

                                                                                                                             =E27+3                      =F$19-F$
                                                                                                                                                          =F$19A(F$19.F$29)*(E28.E$1R /E$29-ESI9)      9) -

Q-$9~E7E19/E§29-E$1 29 4 =828+3 =(F38+F39)*3/2 =029/3 55.5555555556 236 30 4 1=829+3 =(F39+F40 *3/2 - - =C30/3 =E28+3 =F$29-(F$29-F$67r*(E30-E$29Y(E$67-E$29)- - 31 4_=830+3 =(F40+F41 3/2 IL03/ =E30L+3. _F$29-(F$29-F$q67)(E31.E529)/(E$67-_$29) - - 4 3 3 32 j=B 1+ =(F41+F42)Y312 ..!=032/3 =E31+3 =F$29-( F$29-F$67yE3-Egýýf$29)/(E$67-E$29) -

                                                                                                                  -    033-=E32+3                   _=F$29-(F$29-F$ 71(~E33-ES9M/EW6-E29) -.. -

34 5 1=833+3 =LF4F443/2. =31 =E33=F$29-(F$29-F$67)lpE34.ES29)/(E$E67-E$29) - 35 5. =3+ TF4+F45r*3.2__ ...--=C035/-3 E4 =F$294F$29-F$67)1E35E2)(E6-S2) - 36 5 '=835+3 a(F45+* 3/2 .. -- __-:C - 3/3 I=E35+3 =F$29-(F$29-FjqL)jEL6-Eý$291/(E$67-E$29) -- 37 5 -=B36+3 1=_F46+F47r3.2 I E36+3 037/3 =~F$29-(F$29-F$67)*(E3-591E6-$9 38 5 ._=837+3 =(F47+F48)3/2 0=38/3 =E37+3 =$9F2-67(37-Et29YjE6-$9 3_95 i=838+3 =(F48+F49)3/2

                                                                                                                             =E8+                         =F2-F2-$7(3-59($
                                                                                                                                                                -391                               E$29)-

40 5 1=B39+3 i=(F49+F50)*3/2 =E40+3 ___=F$2%(SF$29-F$67Y*(E40-E$_29YtE$67-E$29)_

                                                                                                                                                               .4I04/3                                                             -

1 5 =840+3 =(F50+F51)'3/2 I=C413

                                                                                                                             =40+3=F$29                             F$29-F$67)*(E0-1-ý2j (E$67-E$29) 416 =841+3 1=(F51+F52)*3/2 421 0=42/3        =E41+3                       =F$29-(F$29-F$67Y(E42-E$29)/(E67-E$29) 043/3       =E42+3 ____-=F$29-(F$29-F$67)*(E43-E$29JLEý$67-E$29) 6     =)3/2
           =43              =(F53+F 04!=4/13            43+3                   =F$29-(F$29-F$67)*{E45-E$29)/E$6-E$9..
         .L=44+3            =(F54+F55)-32
                                                                                                             =C046/3 _J=E45+3                             =f$ 9($29-F$§a              5.9YA 67-E$2)
                                                                                                                                                                                      -E 6 !=845+3               -f56+arL/2
                             -_4                                             ...
                                                                         ......---                      --        47/3         8=45+3                 -F$29-(F$29-F$67          t47-E$29y/(E$67-E$29)              .

6 847+3 =-j/F57+F58 2 =E7+ =F$29-(F$29$67)'4-S9/E$7E2) - 6--]45- 3 -(F57+F593/2-1 ..... .................- 04/ _47+3 __ _:!__ -(F$09-f_ 7(E48-W59Y(E$67-E$29)____ 0C49/3 8E48+3 __ =F$29-(F$29 F$67r(E4!)7E$29M/ELW7-E$9) 7 .=t849+3 =(F59+F60T3/2 . =050/3 =E49+3 =LF$29-(F$29-FL67r E50-$29)/(E567-E$29) - .

           =B0+             *-.=.F60+F613                                    -...                            =C051/3          =E50+3 --                 i=F$29-(~.F$296$7J(Eý51:E$29)!(E$6ý7-E$29) 7 i=B51+3              =(F61+F62)*3/2                                                                   =C05213         =E51+3                       =$9($9F6)(5-~                         q-$9 1523 =F62+F63)*3/2                                                                      =C-- 53/3 1' 852+3                           =Fý9($9E                     E$?Yf6-$ý 7     =B53+3           =(F63+F64)*3/2                                                                                  054/

E533 ,F§2 -(F$29_F$67r(Eý54-E$29)/(ES67-E$29). -- 7 ,I*B54,+3 -=(F64+F65)'3/2 05/3 E54+3 =F2-F2-37(E55-E$29Y(E367-E$29)

                                                                                                                                                                -~
                                                                                                             =--- 56/3        =E55+3                   J=F$29-(F$29-F$67r(E5B-E$29yL(E$67-E$29).

8__ =3...___ .. F.68+.F6_9 )"3/2 Y2 =C5 =Eh~ 56+3 1=$29-(F$29-F$67)(Eý57-E$29Y(E$67-ES2 ....

        ---- 856+3 _=((F66tF67 (E6T-E66)!(F67+F68y'(Ef68- 67))                                                =058/3         =E57+3                      I=E$29-(F$29-F$U7)(q5ý8-E$29Y(E$67-E$29)
           =B-57+3          =(F6*.+F7o9/2                                                                                                                                                                              -

8_=859+3 . -(Ft0F71_32- 05 =3E58+3 ~ =$22- F$29-F$q -(E59 ES1/(ES6-E$29) . 06/3 E59+3 =F$29-(F$29-F$67y'(E60O-E$29)Y(ES67-E$29). - 8 A=860+3 =(F71+F72)*3/2 =G1/ =E60+3 =FSi29 (F$29-F$6 r(E61-E$29 /EL$67-E$29) -.. 862+3--=(F72+F73)3/2 . . . =C:i/3 E6 jkF2-(ff$29-F$67r(E62-E$2s)/LE67-E$29) .. 8 i=862+3 =(F73+F74)3/2. =C3/ =E62+3 PS9($9 $7c63E2Xý67-E$29) ..- a =B63+3 =(F74+F75)*3/2 . =C64/3 I=E63+3 I=F$29-(FS29-F$671)(E64.E329)/LES6-E$29) .-- 8 864+3 (FL* * .......................... --065/3 I=E64+3 =F$29JE$29 F$67)-(E65-E$29)/(E567.-E$29) 9 =865+3 - F76+F77.3/2 - =066/3 I=865+3 =F 29-(F$29.-F$67)-(E66-ES2ý9)/(ES6.$(ý-ý2X _.

                                                                                                              =C6~7/3        [166.66666667                19-6 9          6=B7+3=t(F7+F82)*3/2                                                                                8/3 C6-..~       J=E66+3                        F$67-(F$67- F105r(E68-E7)($5E6)
            ;66844'+3 (F73+F4)'3/2                            .                                                              !=E68+3                           S-=069/3
                                                                                                                                                           =F$67    ($67-E$105)(E69-gL67y(E 105-E$67L_
                                                                                                              =070/3 I=E69+3                               =F$67-(F$67-F$1105)(E70-!$E$67)/(E$105-E$ 67) 9 =B73+3               =(F81+F82)r312                                                                    = 1/3 I=E70+3                              I=F$67-(F$67-F$105sY(E71.-E!$67)/(E$105.E$674__

S-.-C 9 SL8+3_.j=F2+Bf/

           =872+3           =(F53+F86)3/
                                                                                                                   =023
                                                                                                                 =03/3
                                                                                                                              =:E71+3
                                                                                                                              =E72+3
                                                                                                                                                         !=F$67-(F$67- FO)*(E72.E$67)/(E$105-E$67)

I F$67-(F$67-F$105)'(E73-E$67)/( E5105-$7 10 =873+3 =(F84+F85)3/2 J=F$67-(F$67-F$105r(E74-$7(10E67

                                                                                                              =074/3 I=E73+3  =4+3                       j=F$67-ýF$67-F$105r(                    $0-E6
                                                                                                                                                                                         $.E67)/(E 10 =874+3              =(F85+F86)*3/2                                                                       =05/3 10                                                                                                      =076/3           =E75+3                        F$7(57F$105)-(E76 E$6L)/(E$105-E$67)_--

875+3 1 -(6+F8 7)~/N 1087+3 =(867;F88r312 - ,077/ =E7+3 $67-(F$67-F$1 05)*(E77-E$67)/(E$1 05-E$67) PROJECT NO. 11333-297

ATTACHMENT C CALCULATION NO. L-002457 REVISION NO. 8 PAGE C14 OF C16 Equations for UHS Heat Load Plot AI B c D I E F 78110 =877+3 =(FB+__9)_3_ 2 _=C78/3 i=E77+3 _ =F$67-F$67-F$105)r(E78-E$67Y(E$105-E$67) 79 10 =B78+3 =(FB9+F90)*3/2 -=C79/3 F=E78+3 3=F$67-(F$67-F$105)*(E79-E$67y(E$105-E$67) 10"-B79+3 =(F90+F91)*3/2 _ _ =080/3 I=E79+3 1-F$67-(F$67-F$105)*(E80-E$67Y(E$105-E$67) 114=B80+3 =(F91+F92)3/2 . .....- ,=C81/3-=E80+3_________ =F$67-(F$67-F$1 05)(E81 -E67y(E$105-E$67) 83 11 =881+3 =(F92+F93)*3/2 =C82/3 =E81+3 =F$67-(F$67-F$105r(E82-E$67y(E$105-E$67)

                      =(F93+F94)3/2                                                   =C83/3     !=E82+3            =F$67-(F $67-F$105)*(E83-E567Y(E$105-E$67) 84 1.11 =B83+3        =(F94+F95)*3/2                                                  =C84/3     !=E83+3            =F$67-(F*$67-F$105)*(E84-E$67y(E$105-E$67) 85,11     =B84+3      =(F95+F96)*3/2                                                  =C85/.3 -=E84+3               =F567-(F*$67-F$1051*(E85-E567Y(E$105-E$67) 86111     =885+3      =(F96+F97)3/2                                                   ='86/3 J=         -85.3       =F$67-(F*$67-FS105)'(E86-E567V)(ES105-E567) 87 11     =886+3      =(F97+F98)*3/2                                               -I            7=586+3            =FS67-(F1 4-(E$105-E$67) 88 -11                                                                            -4 T17 -~
          =B87+3      =(F98+F99)3/2                                                   =C88/3     j=E87+3            =1                               7)/(E$105-E567) 89 11     =B88+3      =(F99+F100)*3/2                                                 =C89/3      l=E88+3           =F$67-(F567-F$105)*(E89-E567y(E$105-E567) 9-0 2=B89+3       =(F100+F101)*3/2              - .........-                      =C90/3       =E89+3           =F$67-(F$67-F$105)*(E90-E$67Y(E$105-E$67)
          =B90+3      =(F101+F102)*3/2                                                =C91/3       =590+3           =F$67-(F$67.F$105)*(E91-E$67y(E$105-E$67) 92112     =891+3      =(F102+F103)*3/2            .......                             =C92/3       =E91+3           =F$67-(F$67-F51 05)'(E92-E$67)/(E$105-5567) 93112     =-92+3      =(F103+F104)*3/2                                                =69313       =E92+3           =F$67-(F$67-F$105)*(E93-E$67y(E$105-E$67)
                      =((F104+F105)*(E105-E104)+(F105+F106)*(E106-94112 1=B93+3         E105 )2                                                         =C94/3       =E93+3           =FS67-(F$67-F$105)*(E94-E$67 V(E5105-E867) 951 12    =B94+3                                                                                                                                     7V(ES105-E867)

_______ =&DA 1 t=E94+3 96 112 =895+ I=C96/3 I=E95+3 ___ 97 2 B96j =C97/3 =E96+3 =F$67-(F$67-F1 98 13 =897+3 =(F1O9+F110)"3/2 =C98/3 =E97+3 =F$67-(F$57-FN 99113 =883 =(F110+F111)*3/2 =C99/3 1=E98+3 =F$67-(F$67-F$105)*(E99-E$67Y(E$105-E$67) 100 13 =B99+3 [=(FI11 +Fl12)*3/2 =C100/3 =899+3 =F$67-(F$67-F$105Y(E1 00-E$67y(5$105-E$67) 101 131I=8100+3 1=(F112+F113r*3/2 =C101/3 =2100+3 =F$67-(F$67-F$105)*(E 01 -E$67)/(E$105-567 ) 102113 1=8101+3 1=(F113+F114)3/2 =C102/3 =E101+3 =F567-(F$67-F$105)(E 102-E567)/(E$105-E$67 ) 103 13j 104 13 p=102+3

        =B103+3
                      =(F114+F115'3/2
                      =(F1 15+F1 16)*3/2
                                                                                          =C0/
                                                                                      =C1U4/3
                                                                                                  !=E02
                                                                                                   =E1U03+3
                                                                                                                    =F$67-(F$67-F$105))(E 103-E$67)/(E$105-E$67)
                                                                                                                    =F$67-(F$67-F$105)*( 104-E               05-E$67) 1051 14  )=8104+3      =,F116+F117)*3/2                                                =C105/3      277.77777778     181 106114    [=8105+3 I=(F117+Fl1_83/2_                                                 10106/3 I~0107/3      [=E104+3         =F$105-(F$105-F$199)(E106-E$105)1(E$199-E$105) 107114     =8106+3 I=(F118+F119)'312                                                                t=E106+3         =F$105-(F$105-F$199)*(E107-E$105_/(E$199-E$!05) 108 14     =8107+3                                                                     =0108/3        E107+3         =F$105-(F$105-F$199)*(E108-E$105Y(E$199-E5105) 109 14     =8108+3 =!f120+F121 )3/2                                                 -j:ClOp91       =2108+3          =F$105- F$105-F$199)*(E109-E$105)/YE$199-55105) 110 14     =B109+3 =(F121+F122Y3/21                                                                 =E109+3          =F$105-(Fý$10_5-F$199(E15 1.O-2ý$1_.(-199-E$105) 1=0110/3 111 14     =8110+3 =L(P22+F123)3/2                                                                  =E110+3                      .=C111/3 ).1-E$2
                                                                                                                    =FS105-fS105-                        5(Ej$.99-_$105)

T12 14 =6111+3 =(Fl23F124)*3/2 =E-11+3 =F$5105-F$105-F$199)*(E1 12-E$105Y($__99-E$1O5) 113 14 =8112+3 =(F124+F125)*3/2 ... =E2112+3 =F$105-(F51 05-F$199)*JEI 3-E5105)/(E$1 99-E$L.5)_

                                                                                     !=C113/3 114 15                 =(F125+F126)*3/2                                                            PI i+3   3        =F$105-(F$105-F$19_9)..E 14-E$105)/(E$199-E$105) 115        =4114+3; (F126.+.F.1..7.......                                         I=C115/3     -=114+3          =F.105-(F$105-F5199_I)-(E 11.5-E$105 )/(E$199-55105)
                                                                                                   =5115+3          _=F$105-(F$105-F$199)-(E. 6E$10_5)/(E$199-.E$105) 116115 J=B115+31                                                                      1=Cl16/3 117 15     =B116+3    t=(F128+F129r-.312                                               =C117/3     -=1   16+3        =F$105-(F$105-F$199)*(E 117-E_105y(55199-E$105 118 15     =B117+3     =(F12 +FiLo /.....      "                                     1=C118/3       =E117+3          =F$105-(F5105-F$199)°(E2118-E5105Y(E$199-E$105) 119 15 =B118+3         =(F130_F1j32-                    -2                             =C119/3 =E118+3               =F$105-(F$105-F$199)'(E_1 19-E$105)/(E$199-$105) 120 15 =B119+3         =E 1_+_F13 2)3/2                                                =C120/3 =E119+3            _. =F$105-(F$105-F$199)*(E120-E$105y_(E$1_9          105 121 15 =B120+3         =(F1           13_.)'3/2                                  --- =C12113 - =E120+3               =F$105 F$105-F$199)*(E121-E.105 )(E$1              0 122 16 =B121+3         =(F133+F134)3/2 .           .-                                  =C122/3 =E121+3               =F$105-(F$105-F$199)(E 122-E$105y(55199-E$105) 123 16 =B122+3         =(/2_4.........                                                 =C123/3 =E122+3               =F$105-(F$105-F$199)*(5123-E$105)/(E$199-E$105 124 16 =B123+3         =(F135+F136)*3/2                                                =C124/3 =E123+3               =F$105-(F$105-F$199).(E.124"5105)/(E$199-E$I05) 125 16 =8124+3         =(F136+F137!3/2                                               T=C125/3 =E124+3                =F$105-(F$105-F$199)**E.125-E$105)/(5$199-E5105) 12.761..6_=8125+3      =*F137+F138)3/2                                                I=C126/3 =E125+3               =F$105-(F$105-F$199(.E.26-$$105)/(E$199-_$105) 127 16 =B126+3         =(F138+F139)312 .....                                           =C127/3 .=E126+3              =F$105-(F$105-F$199 )E127-_E$050*E.$199-E$1_05.

128 16 =B127+3 =(F139+F140r3/2 =C128/3 ]=E127+3 =F$105-(F$105-F$19)(28-E$1005Y(E$1_99-E$105) 129 16 =B128+3 =_(F140.O+F141)*3/2 C=129/3 =5128+3 =F$105-(F$105-F$199)(E1_29"-E5105)/)E$199-55105) 130 17 =8129+3 =F141 42)3/2 I=C130/3 =E129+3 =F$105-( F$105-F$199)"(E130_-E$105)/(E$199-E5105) 131 17 =8130+3 =(F._2......312 =C0131/3 =E130+3 =F$105-(F$105-F$199)(5131-E$105)1(E5199-E5105 132 17 .=8131+3 =(F143+F144*32 . j=C132/ =131 +3 -F$105F$105-F$1991(E132-E$105)/.E$199-E$105) 133 17 =8132+3 =(F144+F145)3/2  ;=C133/3 =E132+3 =F$105-(F$105-F$199_)(E133-E$105)/(E$199-E$105) 134 17 =8133+3 =(F145+F146)*3/2 =C134/3 =E133+3 =F$105-(F$105-F$199)lE134-E$105_Y(E$199-E$105. 135 17 -=B134+3 =(Fl46+FI47r3/2_ '=C135/3 =E134+3 =F$105-(F$105-F$199)*(E135-E$105y(E$199-55105._ 136 17 =B135+3 =(Fl47+F148)3/2 =C1136/i =E135+3 = F$105-(F$105-F$199)*(E 136-E$105 y(E$199-E$105)

                                                                                      =C137/3 13717 .=B136+3 =(F148+F149)_3/2                                                                       E136+3         =F$105-(F$105-F$199)*(E 137-E$105)/(E$199-E5105_

138 18 =B137+3 =(F149+F15o°3/2 =C13813 =E137+3 =F$105-(F$105-F$199)(E 138-E$105y(E5199-E5105j 13918 =8138+3 1 '=C139/3 =E138+3 =F$105-(F$105-F$199)(E139.E$105y(55199-E$105) 140 18 =B139+3 =(F151+F152)3/2 =C140/3 =E139+3 =F5105-(F5105-F$199)hE140.E$105)/(E$199-E$105) 141 18 =8140+3 (FI2+53)*3/2 =C141/3 E=140+3 =F$105-(F$105-F$199)*(E141-E$105y(E$199-E5105)

                                                                                                    =E141+3          =F$105-(F$105-F'$199 )(*E 142..E..$105)/tE$199-55105) 142 18 =8141+3 =F15.3+F154)3/2                                                         =C142/3 143 18 =8142+3 =(F154+F155)3/2                                                         =C143/3       =E142+3         =F$105-LF$105-Fs199)'(E143 -2510(E$199-E5105) 144 18 =8143+3 =(F155+F156)3/2                                    .....     .     .=C144/3           =E143+3         =F$105-(F5105-F$1_99r(E 144-E105_y(E199-5105 145 18 =8144+3_. =.5                      °3/2                        --------          =C145/3
                                                                                      =C146/3       =E144+3         =F$105-(F$105-F$199)*(E145-E$105)y(E$199-E$105) 146 19 =B145+3         --SF157+F158)3/2                                                           _ =E145+3          =F$105-(F$105-F$199.)(E146-E5105Y(E$199-_E$1-)
                                                                                      =C147/3 147 19 =8146+3                8         9)3/2                                                        =E146+3          =F$105-(F$105-F$199).(E147-E$ 05)/(tE199-$105) 148 19 =8147+3         =f159+           03_2                                           L_=C148/3     =E147+3         =F$105-(F$105-F$199)"(E148-E5105 Y(E$199-E$105) 49 f9 =81468+3 =(F160+F161r3/2 ..                                                    I=C149/3 =E148+3              =F$105-(F5105-F$199)-(E 149-E$105)/(E$199-E$105) 150 19 =8149+3 =(F161+F162)312                                                       .=C150/3        =E149+3         =F$105-(F$105-F$199)(E150-E$105YE$199-E$105) 151 19 =8150+3 =.Fl62+Fl63)*3/                                                         =C151/3      =E150+3         =F$105 JF.105-F$199)r(E151-E$105Y(E_         99-E$105) 15219 =1*51+3          =(F163+F164)-312                                                              =E151+3          =F$105-(F$105-F$199.(EI52-E$105Y(E$199-E$105) 153 19 =8152+3 =(F164+F165)*3/2                                                                  * =E152+3           =f$15- F51F$199)_E_ 53-E $51055192:gS105L 1.420 .=B153+3 =F165+F166r3/2                                                                        =E8153+3         =F$105-(F$105-F1_9_9 )154-E5105V(E$199-E$105) 550    =B154+3 L=F166+F-1673*3*2                                                      =C155/3 =E154+3              =F$105oCF$105-F$199)I(E 155-E$105_YE$199-E$105) 156120 =B155+3         =(F167+F168)3/2                                                 :9=C15613     =E155+3         =F$105-(F$105-F$199)1(E156-E$1l05-y(E$199-E$105)

PROJECT NO. 11333-297

ATTACHMENT C CALCULATION NO. L-002457 REVISION NO. 8 PAGE C15 OF C16 Equations for UHS Heat Load Plot A I B [ D E F 157 20 6=B156+3 =(F168+FI69)*3f2 )____=0157/3 J=6156ý+3 I=F$105-(FS105-F$199YI(E1 57 ES105 VIEM199-61105) Sk-6157+3 =(F169+F170)'3/2 [=0158/3 J=6157 +3 I=FS1 05-(F$i 05-FSi 99)(E1 58-E1105w(ES199-E11051 159 20 I=B158+3 =jF1Zq0+F171)-3/2 [__=0159/3 1E15 +3 -- JF$105-(F$10 0-F$199)'(6159-E$105)/(E$199-E$1 05) 20 =B6159+3 =(F171+F1721P3/2 10160/ I=El59 ;.3 I=F$105-(F$105-F$199)'(EI60-E$1 05)(E$199-E$105) 161 2o Ii.B._160+3 =(F172+F173*3/2 =C161/3 =E160+3 I=F$105-(F$105-F$199)'(El6l-E$IOSY(E$199- $105)

                            -tcIflJ4~A~*Op)                                                      ~                       1 .-

T...r~,.. 162 21 jB161+3 I=F$105-(F$105-F$lggr(El62-E$iOSY(E$199-E$105)

         *-L-*-- --                                                                              [=016ý3/3
                                                                                                                    =F316+3
                                                                                                                       .... 2-v                      I=F$105-(F$l o5-F$199r(E1 63-E$1 OS)(E$199-E$1 05)
                           =1F174+P1511
                                                                                                   =C164/3          =E163+3                          =F$l 05-(F1105-F$199)(E164-E$1OSy(E$199-E$105) 165 21           _164+3     =(F176+F177)'3/2                                                        =C165/3          =E164+3                          =F$105-(F$105-F$199)(E 16-E$ 05/(199-E$105) 16_621 I_6-65+3             =(F177+F178)*3/2                                                        =C166/3          =E165+3                             =F105-(F$105-F$199r(El66-ES1 OSVfE$199-ES105) 167 21 =166+3               =(M18F79*/                                                                     571673 1=6166+3                            =F11054(FS105-F1199 t .       ....

rE t * ... 167-ESIOS1/(ES199-ES

                                                                                                                                                                                            ..    . r* .......

105). 21 1=B167+3 =1F179+F1801'3/2 C18/3 5 1=r=167+3 =F$105-(F$105-F$l 99)'(E1 68-E$1 OS Y(61199-E $105)

 '   21     =B168+3        '=(;- l8g+l-181r""312                                                   =C169/3          =E168+3                          =F$1 05-(F$105-F$199)'(E169-E$105)/(E$199.61105)
    ?--L=6170+3            =(F181+F182)'3/2                                                        =C170/3          =E169+3                          =F$105-(F$105.F$199)*(E1 T0-E$1Q§K/E$199.E15 22 L7-l7+3            =(F182+F1831*3/2                                               -        =0171/3          =E170+3                          =F$105.(F$105-F$199)'(6171 -E$108)/(E1199E$105) 172                          =(I183+F184"3/2                                                          =r0172/3       =P171+3                          =F$105-(F$105-F$1 99)*(E1 72-Eli 05)/(E$199-E$105) 73 22 =B172+3 -I- (F1;4+F1851*3/2-                                                                    =C":17313       =E172+3  +                       =F{1DR4F£;105.Ft1**IF173.F$IORVIF.*1*.q-I={105I 5-(F$105-F$199)'(El73-E$106Y(E$199-E$105) 174                           -l'- 184+F1851'3/9 175 22 i=E                    tF 8E6+F17-/                                                         L=C175/3         I=El4+3-                         !=F:$105.(F$105-F$199)'(E175-E11085Y(E$199-E$105)
                                    =(18      318832                                             [=gI~              ~      7+                        =F$105-(F$105-F$199r'(E I76-E$105)/(E$199-E$105)
                      +3    =(F188+F189)*3/2                                                         =C177/3        =E176+3                          =FS 105-(F$105-F$199)-(E 177-E$1 0SWES            6599-611 05) 178123 J=B177+3              =(F189+F190)*3/2                                                         =C178/3        =E177+3                          =F1105-(F$105-FI1 99)(E1 78-E6105V(E$199-ES105) 23 =B178+3 I=(F190+F191)*312                                                                    =G179/3        =E178+3                          =F1105-(FS 105-Fl 199 )(E 179-E1105VwES199-E1105) 23 Fjý7§';ý- L=F191+F192)*3/2                                                                    =C180/3        =E179+3                          =F%I 05-(F$105-Fli 99W' E I 80-ESl' 05WES i 99-ESI 05) 23 =B160+3=1(F192+F193r312                                                                                                                       =FS i 05-IFII 05-FSi99WE( 18 1 -E$105/(SWF99ES 105) 23      =8181+3 j=(F193+F194)13/2                                       _____I.082/3                          I =6181+3           _____          =611105-(F$105-F$199)'(EI82-E$108)/(E$199-E$105) 23       8182U+3 I(F194+F195)*3/2                                                               =C183/3 =E182+3                                 =F$ 105-(F$  105-F$199)*(El183-E$105)/(6$199-E$ 105)

____ 84/ 7I+=CI 23 -B183+3 -=(F195+F196)E32 _____--I-I

                                                                                                     =C184/3 A-=E184÷3                            'F$105-(F$105-FII 99)*(E184-E$105)/(E$1 99-E$105) 23n     -184+3         =(F196+F197)3/2                                                          =C185/3         =E 185+3
                                                                                                                     =6184+3                          =F$1105-(F$105-FI 199)'(E 185-El 105)/(E$199-E$105) 24 .. !61B85+3         =(F197+F198)*3/2                                                         =C186/3         =E185+3 _                       4=61105.(F$105-F$19 )'(E186-E$105 E$6199-E$105)

I , =((F198+F199Y(E199-E198) +(F199+F200)*(E 200-24 i=B186+3 E199))/2 =C187/3 =E186+3 =FS105.(FS105-F$19ý9)*(El87-F$10,,VIF*iq.q-ESIOSI 24 6=B187+3 1=(F2O0+F201)*3/2 .-0188/3 i=E187+3

                                                                                                                                                      =F$105-(F$105-F$199)*(EI89-E$105)/(E11I9ý9-E11 054
     .24 I-=_68+3           =(F201+F202)*3/2                                                ....-C=189/3             =E188+3.
                                                                                                     =01 90/3        _--618_9+*3. ....         .      =F$105-(F$IO5-F1199 (E 90-E105y(E$199-E$105 24 =B189+3             =(F202.+F2O3_312
                                                                                      ..... =Cl191/3_. =E6190+*3..                        ....        =F$105-F15F$9yE9-E$105)/(6$199-E$105j 24            4190+3 =(F203+F_2          .3/2 .        ..

24 !=191+3 (F2_O4+F205r3/2 ...... ....... ._ .19 61*91+3_. ...... . =F$105:(ff105-F$199rjE1:?26$105)/(E$9$61051 __ I - - -- =_(_ 24 O_.F_2 )_.2

                                                  ?=!._z3.                                           =C193/3         =192+3 24 692+3                           6r/2 ------                                               =0194/3             193+      ....                 =$105HFI$105-P1199) E193-E$105)/(E 199-E$105) 25 =B193+3 .. F206+F20*3i2                                                                      =C195/3         =6194+3                         =F$105-(F$l05.F1199)'(E194-E$105)/(E$199.$1i05 25       6=B194+3j.-F20T+F208)*312                                                    . =C19. .1=E195+3                                         =F$105-(F$105-F$199r(E195-E$105Y(E$199-E$105) 25' "195+'3-(F208+F209r*3/2 25-l=B196+3- (F209+F210)*3/2                                   ....    -------------------------------       1_=6.196_+_3.......                 =F$105-(F1105-F$199r(E196-E$105/61$199-E$105)
                                                                                      .....

• 983. = 197*3 25 =*197+3 =(F210+F211)33/2 99 3 =F$105-(F$105 _19)698E105y(E$199-E15

                                                                                                     =C1 /          5555555556 25 B198+    I          =(F21 1+F212)312                                                          . =2003 =E198+3                                 165 25"I99+3             I=(F212+F213)312                                                           =C201/3 I=200+3                                  =F$199ý(F$199-F$       04   *(E200:E19(E34E$19               9 2.--=6200+3     o      =(F213+F214)13/2                                                          =C202/3 1E20153                                  =F$19{F$199-F$304r(E201 -E$1 99y(E$304-E$199) 26 =B201+3 1=(F21 +F215)93/2                                                                    =C203/3         =E202+3                          =F$199-(FII99-F$304rLE202-E61i99i$1304- $199) 26 =B3202+31=(F215+F216)'3/2                                                                    =C204/3 j=6203+3
                                                                                                                                                       =F$199 6F1199-F104)(623VEiýY16394-ýE$199)
                                                                                                     =C205/3         =204+3                              $ gg9-(F$199-F34 624619)                          $304.E$199) 26 =B204+3             =(F216+F212)3/2                                                          =C2063           6205+3                                F1199-F199-134)*(E205-E!199)/(_E$04-E$199) 26 =B205+3 =                         13/2                                                         0C207/3 -- 2~0~6~+3E2                          I=1199fF$199-FS304)'(L2p6-g$19!9)1( $3DL-_E$199)

E~jjj204+3 1F$199-/F1199-FS304 WE207-E$199WE36134-ES199) 2- 6206+3 =(F2129+F220)*3/2

                                                                                     .....           =C208/3 J=E207÷3_.                         _

26 2+3 =(F220+F221*)3/2 =F$199-(F1199-F$304)(6208-E$199y(613 _- ýL991 26 J 20+ =(F221 +F222)*312 .=C209/1 J=E2"098+3 =F$199-(F$199-F$304rL(E209-619)(134E19 I=C210/3 .209+3 =F$199-(F$199-F$304)*(E210-E$199)/(E1304-E5199) 27 293 =(F.22+F22_).3/.2 . _______ =C211/3 I=E210+3 =F$199-(F119610)(2 i6199)/(E$304-E$199) 27 6-_210+3 =c225 f224)*322 =C212J3 621 1+3 =F1199ý(F$199-F$304)*(E212-E 19!?/(E 304-E$199)

                                                                                     ...               021**-3--3=6212+3 27        6-211+3.           2+F227)3/2                                                         =C214/3 =E213+3                                  =F$199-(F$199-F$304)'(E213-E$ý199y$304-_9-$199) 27     L=B213+3 f.R22TYf 27 !=B214+3                           8
                            =(F227+F228)3/2. L..                                                                                                  =F$199-(F$199-F$304(24.19Y(E134E19
                                                                                                                                                           =6199(F199F104y'(E214-E1199y(630-61199) 0.E2153 =214+3
     .27 =B215+3 ,=-(F228+F229**3/2                                                                    0:.--*-c216/3   6E215+3.....                   =F1199-(F$199-F$304)(6E216-E$199y{6334-E$199) 27 =214+3-6                                r                 -
                                                                                                     =C217/3 I=E216+3                                               99F30)

F1199-(F 4r 217-6$1E9L)(6$04-E$199) H2 62ý1 3 !=fI 239+ F23 0)2 3/ 6+ 28-=821--*+---F231+F2* 7 .. =C21 9 =E217+3 =F$199-(-F1199-F1304r(E2i8-EWi99yEk304-!6$199)

                                                                                                                                                                                                      -E$199)/E3419)
                                                                                                                                                      =F$199-(F199-6104(61
                                                                                                     =C219/3         =E218+3 28                     =--=B219+3             .=(F232+F233).3/2                                   0=C220/3 -6E219+3                               =F$199-(F$199-F$304)'(E220-E11 99)(61304-61199) 28     =6220+3        =(..33+F.          3/2                    ...                            !=C221/3         =E220+3                          =F$199-(F$199-F$304)(221-Eýi99)/(ES304-.91199) 28 -=621ý3             =(F234+F23532    '3..                                                    =C222/3 =E221+3 28- ;=B222+3          =(F235+F2361*3/2                                                          =C2233* =E222+3                                 =F$199-(F$199-F$304)*(E223-E 19 Y( $04:619 224128 1=223+3             1=(F236+F237V3/2                                                          !=C224/3 =E223+3 225 zu -=224+3               =(F237+F238r*3/2                                                         =C225/3         =E224+3                          =F$1 99-(F$199-F$304r(E224-E$19y/(E3 4-E$199) 226 29 -B225+3                  =(F3+F239)3/2k-                                                       =C226/3         =E225+3                          =F$1199-(F$199-F$304)*(Eý227ý-E11 99)(6130o4-6199) 227 29 =B226+3                                                                                       [=c227/3 _=E226+3                                       F119~1119~F304)*(E226-E$199)/(E$304-E$199[
                                    =(23+6403..... .......

228 29 =B227+3 ....... =C228/3 =E227+3 =F$199-(F$199-F$304 (E227-E3199)/AE$304j-KE199

                            =(F241 +F242)3/

229 29 =B228+3 =C229/3 =E228+3 =F$199-(F$199..F$304r(E2230.61199X(E.$304-E$199) 230 29 =B229+3 =(F242+F243)*3-/2.--,. -. =C230/3 =E229+3 =F$190 fF$199-F$304)(E231 -61199)1(61304-61199) 2-31 39 =B230+3 f(F243+F244Y3/2 .j=C231/3 =E230+3 =F$199-(F$199-F$304flE232-6,ý$i99)/E$304-E$199) 232 29 =B231+3 =(F244+F245)*3/2 1=C232/3 ?631+3 233 29 =8232+3 =(F245+F246)*3/2 [;Z233/3 =E232+3 =F$19H-F$199-F$304nE232-E$199 /E$304-E$199) 234 30 =8233+3 =(F246+F247)3/2 =C234/3 =F$199-(F$199-F1304)*(E234-E$199)/(E$304-Eý$1 9L

             =B234+3                                                      .                             C235/ - =E233+3 235         i               =(F247+F248r3/2
    .30                                                                                                  =r735/3     -E234 PROJECT NO. 11333-297

ATTACHMENT C CALCULATION NO. L-002457 REVISION NO. 8 PAGE C16 OF C16 Equations for UHS Heat Load Plot A I B Ic D E F 2-3630 J=8235+3__=(F248+F249)3/2 ________=C23613 =E235+-3 =F$199-(F$199-F$304)'(E236-E$1 99y(E$304-E$199) 237 30 8--ý236+3i =(F249+F250 '3/2 ___________=C237/3 =E236+3 =F$199-(F$l 99-F$304)-(E237-E$199)/(E$304-E$199) 38___=B237+3 rjE259+F251)*3/2 =C238/3 =E237+;3 ._!FIF599(f5199-FS304)(E238-E$199Y(E$304-E$199) 239 30 =B238+3F.=(F2514-F252)'3/2 =C239/3 =E238+3 I=F$199 (F$199-F$304r(E239-E 199)/(E$304-E$199) 2T4030 =B239+3 [=(F252+F253)*3/2 =C24013 =E239+3 =F$199 F$199-F$304r(E240-E$199Y E$304-E$199) 241130 -=B240+3 IýF?§ý23+F254j3/2 =C241/3 =E240+3 ..LF$199-(F$199-F$304)'(E241 -E$199)/(E$304-E$199) 242 31_ =8241+F3 I=F2!4+F255)'3/2=243=243 _ =$9-F19F0y(4-E9)/$0-$9) 243 31 =223 =F5+2)3 =C243/3 =8242;N3 -. _F$199-(F$199-F$304)*(E242-E$199Y(E$304-E$199) 243 =B243+3 =(F255+F25rz)r3t2 =C243/3 =E242+3 =F$1 99-(F$199-F$304)*(E243-E$1 99Y/(E$304-E$199) 244531 =8;244+3 1=(F256+F257r312 =C244/3 =E243+3 =-F$1 99-(F$199-F$304)*(E244-E$1 99)/(E$304-E$199) 246 35ý1=8B245+3 257!F258r3/2 =C245/3 =E244+3 =F$199-(F$199-F$304r(E245-E$199Y(E$304-E$199) 24? 31 =8Y245+3j. =(F258+F259)3/2 =263=S9-F19F34(27E19Y E$348199)

                                                                                                                                                                                                               -____________=273 248      1 =247-3
                            = F60+261312=C246/3                                                                            =82-457+3                       =F$199-(F$199-F$304)'(E246-E$199Y(E$304-E19
                            .~F26+F22 24931          8244.3 '12=C247/3                                                                   =E246+3                         =F$199-(F$199-F$304)*(E247-E$199)/(E$304-E$199) 25-0 32 =8;B249+3. +/-=F262+F263)*3/2                     ____________                                      =C250/3            =E249+3                        =F$199-(F$199-F$304)'(E250-E$199)/($304E19 2-5132=250+3 j=(F263+F264t3/2                                                                             =C25113           =E250+3                         =F$199-(F$1 99-F$304r,(E25i-E$1 99)/(E$304-E$199) 252 32 =8-B251+ I=(r264+F265 '312                       ______________                                    =C25213           =E251+3                         =F$199-{F$199-F$304)'(E252-E$199)/(E$304-E$199)

Zbd *Z =BZbZ÷3 =(F265+F266)3/2 =C253/3 =E252+3 =F$199-(F$199-F$304)'(E253-E$199Y/(E$304-E$199)- 7 532 432 13252+3 ' kF266+F267Y3/2

           =B253+3        '                          -                                                                      =E252+3
                                                                                                                          '=E253+3                          ~F$1  99-(F$199-F$304)'(E254-E-$199)LC8$304-E$199) 5 225532 Z                                                                                                        !=C254/3 I=C265/3          I=E254+3                         =F$1 99-(F$199-FS304)y(E255-E$1 99)/(E$304-E$199)
   -       =8254+3               267+F268Y3/2                                                             =C256/3            =E25+3                        =F5$1gg(Fs199-F5$3o4A*(F25R-F1p9v(Fs$3n4-*Ftg1m 256323     =B255+3                                                                                                          =E25+                          =F$199-(F19F$07TE5-$99                          $04E19 257 32      =B256;3 =fF2694-F2701*3/2 I
                                                                                                          =C257/3           =E256+3                          ~F$199-(F$199-F$304)(E257-E$1         99)/(E$304-E$199)
     ý33   =-257+3 -32                                                                                   =C258/3            =E267+3                        =F$1 99-(F$199-F$304)'(E258-E$1 99)(E$304-E$1 99) 33   =8258+3 =(F271+F272)'3/2                                                                       =C259/3         l=E258+3                         =F$1 99-(F$199-F$304)*(E259-E$1 99)/(85304-85199) 33  -c259+3 "-(F272+F273)*312                                                                       =C260/3           =E259+3                        '=F$199-(F$199-F$3043'(E260-ES1993/(E5304-ES1 99) 2-61 33     =B260+3 ']_**+F274_r)/2                                                                        =C261/3           =E260+3                        =F$1 99-(F$199-F$3043N(E261 -E$199)/(E$304-ESI 99(

262 =B261+3 _I=(F274+F275)*312 =F$1 99-(F$199-F$304 3'(E262-E$1 99 WE$304-ES1 993

;zý 33                                                                                                                                                     =F$1 99-(F5199-F53043'(E263-E$199V)(E$304-E$1 991 33   =8262+3 *jF275+F276L/2
           =B263+3 4 (F276+F277)'3/2
                                                                                                          =C263/3
                                                                                                          =C26413        ]=E8262+3 I=E263+3
                                                                                                                                                             -F$199-{F$199.F$3043'(E264-E$199)/185304-ES1993 33                                                                                                                                                       -      i  -      . -  / *         =    f ..    ...   . f i

33 =B264+3 I=(F277+F278)*32 -- =C265/3 *ý_E264+3 . =F$199-(F$199-F$304)'(E265-E$ I99)/(E$304-E$199) t-34 =B265+3 "_-F_78+F279)*3/2 =266/3U =E265+3 F$1 9-($19-F$34)(2668$l99)/(E$304-E$199) 34 =B266+3 j=f2-79-2+F280,32 -"_=C267/3 t=§6.6*3 zF$1 99-(F$1 99-F$304y(E267-E$1 99)/(E$304-8$199D 34 =B267+3_=.!280+F281)3/2 =0268/3 =E267+3 =F$199-(F$199-F$304)y(E268-E$1 99)/(E$304-E$199) 34 =82683 '-(F.2.8l+F282r32_ ............ =063 E26.83... 3"-B269+3 i=f282+F283)'3/2 C=270/3 =E269+3 1.F5 199-(F51 99-F$304)r~270-E$1 99)/(E$304-E$1 99)

           =8-1-270+"3   " , AF283+F284)23/2                                                                   7013-27Qt3
                                                                                                          =C272-3        T=E271_                      j -.

34 ]=8271+3F*E*- 8-M_ j=F1 99-(F$199.F$304)'(E22-§$199)/E$0-E$1 99)

                                                                                                          =C27313          i=E272+3-          .      . F   =F$1 99-(FS1 99-F$304F(8E273-E$199 V(E$304-ES1 993 35-         -'"*         F285+F286)312 T5 _I=B273+3 ;=( F2_____-+--2.=C274/3                                                                                i=E273+3                      IFFl199.F$199-FS3043'(E274-ES199V(E$304-FS1993 35 =B274+3 t_=F287+ F288)*3/2                                                                       =C275/3
                                                                                                          =   0276/3        =E7+3                                F5 9-(F$199-F$304)'(E275-E$1 99Y)$304-8$199j
             =82 5+3 35 ==E275+3               F288+F289) "                      .

j*_E276+3 F1 9-(F$199-F$304r'(E276-E$199)'(E$32L-k$199

                                                                                                          =0277/3 35 =276+3               -jF289+F290)*3/2                                                                                                                 =199-(F$199-F$304)(27-1                )/E04E19 35 _=B277T+3 "*f,29-0+:tF291-312                                              _=C278/3                                =E277+3              .       I=F$199-(F$199-F$304)*(E278-E$199/(E$.304-E$1991_

35 =8278+3 L (Fý291+F292)*3/2 ______ 1=C279/3 1=8278+3 i=S1 99.(F$199-F$304)Y(E279-E$1 99)1(E$304-E$199 3ý51=B279+3 I=IF292+F293 -3/2 -- 79+3-._ I=F5199-{F$199-F$304)'(E280-E$199Y(E$304-E$1 99) 35 =F8280+3"i=(F293+F294)'3/21 =C281/3 LE280+3 I=F$199-(F$199-F 3,6 =281-3-I=F294+F295)*3/2 I-282/8;3 "-8-2"1+3  !=F$199-(F$199-F 36 =B282+3-2" 93 -02833 =8282.3 zF$1 99-(FS 199-F$304)-(E283-81 99)1(E304-E§199) 36 =82833 --.C284 I=E283+3 99) W$9-Fi 29-E5304)'(E284-8$199y(E$304-E$1 36 I=284+3 =(.F297.F98 3/2 IF=0285/3 8=E28453 =F$199_(F 19F3043'(E2B5-E$1993/1ES304-ES 1991 _ 36 =B285+3 (F298+F299)*3/2 i=C28613 =E285+3 287/3 8I286+3 I F$199- F$1 99-F5$3,0,4)'E,2,8,6-$199)/($304-E$199) 36 =2883 =F299F30)'32_____________ 36 =B287+ -(F300*F301)32 _2 =C28813 -8287+3"... - ()4r(F2R7-E$199)ý(E$304-r-$IggI

                                                                                                                                                               $S199JF$199-F$304)-(E288-E$199Y(E$304-85199) 36     B2.88.3I...F301.+F302)*3/2                                                       -           =C289/3 -E;=288+3                                              =F$99-F599-$34)'E29-81 9)/E$04-ES1 9a_
                                   -..-.....                                 t       ..                                      =E289+3                        ýF19F$199 9-F$304)*(E290-E$1 99Y(E$304-E81                   L.

F=F$1 -F199-F$304)'(E291-E$1 99)/(E$304-E$199).

                                                                                                                                                            =F$199-(F$199-F$304r(E292-E$1 99Y($304-85199j
                                                                                                         -...             -I=E292+3                         =F$199-F$199.F5304)'(E293-E$199 (E$304-85lý199
                                                                                                                                                            =F$199-(F$199-F$304)'(E294-E$199Y(8$304-E$5199).
            ....         +           -                                                                                       =E294+3
                                                                                                                           * =E293+3                        =FSI 99-(F$199-F$304)*(E295-E$199)/(E$304-F 199)

S_--1=E297+3

                                                                                                                                                            =F$199-(F$199-F$304)*(E296-E$199)/(E$304-E$199)
                                                                                                                            !=E298+3                        =F$199-{F8199-F$304)'(E297-E$1 99Y(85304l-8$199)-
                                                                                                                                                            =F$199-fF&l 99-F$304)-(E299-E 199V(E330d-FS1993)

_7- .I.-..__"_..._T=E298÷3 ..... ..... _9+3 . . . . . ..

                 . .. .. ._-...                          __.-.E.29                                                                                                =F899-F519-F304)'(3000-E$1 99)/(EV904-E
                         - ............                 -----------                   ---                                           +-                      =F$199-(F$1 99-F$34'80 -81 9yE04-E$1ý99
                                                                                                                            !=E302+3                        =F$19 (59-$0)302-E$199)/(E$304-E$199)
                                                                                                                                                            =F$199-(F$199-F$30L4J(E3O3-E$199)(Eý$304-E$1 99j
                                        -- - -- !........                                                   . . .. ...!=E 302+                               147 1 ~
                                  ~ ll7__1277L.7Z77778
                                                                                                .. [        .   ----          6.6..6.666667 j140                           7--.--

PROJECT NO. 11333-297

ATTACHMENT D CALCULATION NO. L-002457 REVISION NO. 8 PAGE Dl OF D12 Attachment D Attached References

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ATTACHMENT D CALCULATION NO. L-002457 REVISION NO. 8 PAGE D2 OF D12

ATTACHMENT D CALCULATION NO. L-002457 REVISION NO. 8 PAGE D3 OF D12

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ATTACHMENT D CALCULATION NO. L-002457 REVISION NO. 8 PAGE D12 OF D12}}