L-2004-203, Request for Additional Information Alternate Source Term License Amendment

Request for Additional Information Alternate Source Term License Amendment

ML042680405
Person / Time
Site:	Saint Lucie
Issue date:	09/21/2004
From:	Jefferson W Florida Power & Light Co
To:	Document Control Desk, Office of Nuclear Reactor Regulation
References
L-2004-203
Download: ML042680405 (185)

Text

Florida Power & Light Company, 6501 S.Ocean Drive, Jensen Beach, FL 34957 September21, 2004 L-2004-203 FPL 10 CFR 50.90 U. S. Nuclear Regulatory Commission ATTN: Document Control Desk Washington, D.C. 20555 RE: St. Lucie Units 1 and 2 Docket Nos. 50-335 and 50-389 Request for Additional Information Alternate Source Term License Amendment On September 18, 2003, Florida Power and Light Company (FPL) submitted the St. Lucie Unit I and Unit 2 Alternate Source Term (AST) license amendment requests via FPL letters L-2003-220 and L-2003-224. As a result of the FPL submittals and a teleconference with the NRC staff on June 28, 2004, the NRC requested additional information to assist in their review of the proposed amendments via NRC letter dated July 9, 2004. An additional NRC question was provided to FPL via an NRC (Arroyo) to FPL (Madden) e-mail dated August 2, 2004. The attachments provide the additional information requested.

The original license amendment request for St. Lucie Unit 2 did not take credit for the Unit 2 emergency core cooling system (ECCS) area ventilation system charcoal filters. However, FPL's response to question 7.b in Attachment 1 requires that credit must be taken for the Unit 2 ECCS area ventilation system charcoal filters. This development requires a change to the previously proposed St. Lucie Unit 2 Technical Specifications for the ECCS area ventilation system. Although the need for the required Technical Specification changes are acknowledged in the attached response, the Technical Specification change description and justification will be docketed after FPL's internal review process is complete. Except for the charcoal filter credit for St. Lucie Unit 2 described above, the original determination of No Significant Hazards Consideration bounds the information provided in this letter.

Attachments 2, 3, 4, and 5 are the calculation summaries that FPL is sending for the information requested by the NRC in question 2 of Attachment 1. The electronic RADTRAD input files are provided on CD. Attachment 6 provides the MicroShield case file inputs and output referenced in the FPL response 7.h of Attachment 1.

In accordance with 10 CFR 50.91 (b)(1), a copy is being forwarded to the State Designee for the State of Florida. Please contact us if there are any questions about this submittal.

Very truly your William J on, Jr.

Vice President St. Lucie Plant WJ/KWF Attachments cc: Mr. W. A. Passetti, Florida Department of Health an FPL Group company

St. Lucie Units 1 and 2 L-2004-203 Docket Nos. 50-335 and 50-389 Page 2 of 2 Request for Additional Information Alternate Source Term License Amendment STATE OF FLORIDA )

)ss.

COUNTY OF ST. LUCIE )

William Jefferson, Jr. being first duly sworn, deposes and says:

That he is Vice President, St. Lucie Plant, of Florida Power and Light Company, the Licensee herein; That he has executed the foregoing document; that the statements made in this document are true and correct to the best of his knowledge, information and belief, and that he is authorized to execute the document on behalf of said Licensee.

W jr. Weff STATE OF FLORIDA COUNTY OF ST. LUCIE Subscribed and sworn to before me this XLILday of 2004.

_,_ rj, Lesrie 1 Whtwell

.;: MYCOMMISSIONt DD020212 EXPIRES May 1Z 2005 BONDD THRUTROYFAININSUNW1C1 IC me of Notary Public (Type o Print)

William Jefferson, Jr. is personally known to me.

St. Lucie Units 1 and 2 L-2004-203 Docket Nos 50-335 and 50-389 Attachment 1 Page 1 of 36 NRC Questions for Unit 1 and Unit 2 NRC Question 1: What design bases parameters, assumptions or methodologies (other than those provided in the September 18, 2003, submittal) were changed in the radiological design basis accident analyses as a result of the proposed change? If there are many changes it would be helpful to compare and contrast them in a table. Also, please provide ajustification for any changes.

FPL Response to NRC Question 1: The design bases parameters, assumptions and methodologies utilized for the alternative source term radiological analyses are included in the submitted information (i.e., Enclosure 1 to FPL letter L-2003-220 and Enclosure 1 to FPL letter L-2003-224), except for the additional shielding information provided below in response to NRC Question 7.h.

NRC Question 2: Based upon a preliminary review of the proposed amendment the reviewer is unable to match the calculated doses for the accident analyses. It would be helpful if the licensee would provide their design bases accident calculations. If the calculations are provided, answers to questions provided in this request for additional information may reference the calculation. If the calculation is referenced, please provide the section or page number where the information is located.

FPL Response to NRC Question 2: During the 6/28/04 telecon it was agreed that FPL would provide the AST calculations for the limiting analyzed events (i.e., LOCA and MSLB). Since then, FPL decided it would be more beneficial to provide LOCA and MSLB model inputs, along with a summary of the models used, including discussion of key model assumptions and methods. This type of submittal proved to be valuable in the NRC's review of the Seabrook AST submittal. The following are provided:

Unit 1 LOCA models summary of calculation NAI-1 101-033, Rev. 1 - provided as Attachment 2 Unit 1 MSLB models summary of calculation NAI1101-034, Rev. 0 - provided as Attachment 3 Unit 2 LOCA models summary of calculation NAI-1 101-017, Rev. 2 - provided as Attachment 4 Unit 2 MSLB models summary of calculation NA-1I 101-020, Rev. 1 - provided as Attachment 5 The electronic RADTRAD input files on CD NRC Question 3: Regarding the proposed technical specification change in the definition of "dose equivalent 1-131, " Florida Power and Light (FPL) uses the thyroid dose as the basis of the proposed change. This definition finds use in the reactorcoolant system (RCS) and secondary specific activity technical specifications. The purpose of those technical specifications is to control the actual specific activities to levels less than those which would exceed the initial assumptions made in the radiological consequence analyses. Previously, those analyses determined whole body and thyroid doses, consistent with the dose guidelines in Title 10 of the Code of Federal Regulations (CFR), Part 100, Section 11. However, with the proposed implementation of the alternate source term, the total effective dose equivalent criteria supercede the whole body and thyroid dose. The staff has not required licensees to revise this definition. Since you have proposed a change, please provide a justification for the use of thyroid dose conversion factors when the effective factors provided in Federal Guidance Report 11 Table 2.1 would be more appropriate.

FPL Response to NRC Question 3: In the St. Lucie 1 & 2 dose calculations, the dose conversion factors referenced in the definition of dose equivalent I-131 (D.E. 1-131) are used to adjust the initial primary coolant iodine activities. The primary coolant iodine activities adjusted to 1.0 ?ClIgm D.E. 1-131 based on the thyroid dose conversion factors are:

St. Lucie Units 1 and 2 L-2004-203 Docket Nos 50-335 and 50-389 Attachment 1 Page 2 of 36 Primary Coolant Iodine Activities Based on FGR-11 Thyroid Dose Conversion Factors St. Lucie Unit 1 Adjusted Isotope pCi/gm 1-131 0.7920 I-132 0.2175 I-133 1.1293 1-134 0.1237 I-135 0.5387 Primary Coolant Iodine Activities Based on FGR-1 1 Thyroid Dose Conversion Factors St. Lucie Unit 2 Adjusted Isotope pCi/gm 1-131 0.8133 I-132 0.1692 I-133 1.0111 I-134 0.1011 I-135 0.5055 Using the FGR-1 1 Table 2.1 effective dose conversion factors, results in the following iodine activities (after adjusting the initial primary coolant iodine activities to 1.0 ?CI/gm D.E. 1-131):

Primary Coolant Iodine Activities Based on FGR-11 Effective Dose Conversion Factors St. Lucie Unit I Adjusted Isotope pCi/gm I-131 0.7797 1-132 0.2141 I-133 1.1117 1-134 0.1218 I-135 0.5303

St. Lucie Units 1 and 2 L-2004-203 Docket Nos 50-335 and 50-389 Attachment 1 Page 3 of 36 Primary Coolant Iodine Activities Based on FGR-11 Effective Dose Conversion Factors St. Lucie Unit 2 Adjusted Isotope pCi/gm 1-131 0.8019 1-132 0.1669 1-133 0.9969 1-134 0.0997 1-135 0.4985 As can be seen by examining the two sets of tables, using the thyroid dose conversion factors in the definition of D.E. 1-131 results in higher iodine concentrations in the primary coolant. Thus, using the thyroid dose conversion factors produces a more conservative determination of the primary coolant iodine activity for use in the dose calculations.

NRC Question 4: With regard to control room emergency ventilation actuation, FPL has assumed a 50 second (Unit 1) and 30 second (Unit 2) delay in actuation for all analyzed accidents. In Section 1.6.3.2 of the licensee's submittal (§1.6.3.2), FPL states that this actuation is based on either a Containment Isolation Actuation Signal or high radiation being detected at the control room intake. It is stated that for the loss of coolant accident a containment high pressure signal actuates isolation, and that a 50 second (Unit 1)and a 30 second (Unit 2) delay provides for diesel generator start time and damper actuation time. Please explain how the assumed 50 second (Unit 1) and 30 second (Unit

2) delay is conservative for all accidents, considering the response considerations identified by FPL.

Explain how the time for the input activity to ramp up to the alarm set point level and the impact of differences in accident-specific radionuclide effluent mixes on monitor response are considered in the determination of these delay times.

FPL Response to NRC Question 4: The St. Lucie 1 & 2 control room air intake radiation monitors are Beta scintillation (Unit 1) and Beta-Gamma scintillation (Unit 2) detectors. The setpoint for these detectors is "2 times background" (320 cpm according to the Unit 1 UFSAR). According to existing design basis documentation, the 320 cpm value corresponds to 2x104 pCi/cc. With a setpoint set to a value slightly higher than background, it can be assumed that the control room air intake monitors will generate an isolation signal due to any dose-significant release. This assumption is confirmed by data provided below.

The 50 second delay for the Unit 1 control room includes 10 seconds for diesel start, 35 seconds for damper actuation and 5 seconds for instrument response/signal delay. Similarly for Unit 2, the 30-second delay includes 10 seconds for diesel start and 20 seconds for damper actuation and response/signal delay. These control room isolation delays are considered conservative for all events since they incorporate the fundamental delays associated with such a design.

The following two tables list the average Kr-85 concentrations during the period before control room isolation at the entrance to the most limiting control room air intake for the two St. Lucie units. The RADTRAD-NAI dose calculation model assumes instantaneous transport of releases from the release point to the receptor point; thus, there is no delay or ramp up time for the exposure of the radiation monitors to the release.

St. Lucie Units 1 and 2 L-2004-203 Docket Nos 50-335 and 50-389 Attachment 1 Page 4 of 36 St. Lucie Unit I Average Kr-85 Concentration at Event Entrance to most limiting air intake before isolation (PC!/cc)

WGDT Failure 3.01 E+00 FHA 5.49E-03 Locked Rotor 1.22E-05 Cask Drop Case 1 3.43E+00 Cask Drop Case 1 3.84E+00 Stuck Open SG Relief 2.88E-05.

or Safety Valve SGTR pre-accident 9.55E-05 spike SGTR concurrent spike 9.55E-05 Rod Ejection 1.14E-05 Containment Release Rod Ejection 29E 05 Secondary Release MSLB Outside Containment DNB 3.08E-06 Case MSLB Outside Containment FCM 6.97E-06 Case MSLB Inside Containment DNB 2.49E-05 Case MSLB Inside Containment FCM 6.76E-05 Case

---For this event the listed concentration is the total concentration of all of the beta-emitting noble gases.

St. Lucie Units 1 and 2 L-2004-203 Docket Nos 50-335 and 50-389 Attachment 1 Page 5 of 36 St. Lucie Unit 2 Average Kr-85 Concentration at Event Entrance to most limiting air intake before isolation (pCi/cc)

WGDT Failure 1.99E+00 FHA 5.49E-03 Locked Rotor 1.41 E-05 Letdown Line Break 5.37E-06 FW Line Break 3.70E-05 SGTR pre-accident 1.25E-04 spike SGTR concurrent spike 1.25E-04 Rod Ejection 1.20E-05 Containment Release Rod Ejection 1.49E-05 Secondary Release MSLB Outside Containment DNB 3.28E-06 Case MSLB Outside Containment FCM 7.06E-06 Case MSLB Inside Containment DNB 3.04E-05 Case MSLB Inside Containment FCM 7.12E-05 Case For this eve t the listed concentration is the total concentration of all of the beta-emi ting noble gases.

St. Lucie Units 1 and 2 L-2004-203 Docket Nos 50-335 and 50-389 Attachment 1 Page 6 of 36 NRC Question 5: The values provided for unfiltered inleakage in the FPL 180-day response to Generic Letter 2003-01 (dated December 9, 2003, Attachment 1, Page 3) appear to bound the values used in License Amendment Requests (LARs). The values were preliminary at the time the letter was written. Please confirm that the values used in the LARs bound those values measured using the American Society for Testing and Materials E741-00 integrated inleakage tests.

FPL Response to NRC Question 5: The limiting (i.e., lowest) values used in the LARs bound the limiting (i.e., highest) values measured using the ASTM E741-00 integrated inleakage tests (NUCON International Inc. Test Report Dated 12/15/2003, Tracer Gas Testing of the Control Room Envelope at St. Lucie Plant, Units 1 & 2). These limiting values are as follows:

Limiting LAR Limiting Measured Inleakage Value Inleakage Value Unit 1(LOCA&MSLB) 410 + 13 cfm 540 cfm Unit 2 (LOCA & MSLB inside 207 + 22 cfm containment)

NRC Question 6: §2.4.2 and §2.4.4 and several tables for other accidents state that the unaffected steam generator (SG) is used to cool down the plant during the Steam Generator Tube Rupture (SGTR) accident. Activity is released via steaming from the unaffected SG Atmospheric Dump Valves (ADVs) until the decay heat generated in the reactor core can be removed by the Shutdown Cooling System. The Updated Final SafetyAnalysis Report (UFSAR) for Unit 2, §15.6.2.1.7.3 states, that the shutdown cooling is activated after the pressure and temperature are reduced to 175 psia and 300 degree F. Since the secondary side of the unaffected steam generator continues to generate steam until the temperature is less than 212 degrees F, please confirm that the plant physically restricts further releases once the Shutdown Cooling System is put into operation. Explain how this activity is restricted?

FPL Response to NRC Question 6: For a SGTR event, steaming from the unaffected SG would not continue once shutdown cooling was initiated if significant primary to secondary leakage was occurring in that generator. Although capable of steaming until an RCS temperature of 212 0F, under such conditions continued steaming of the unaffected SG (while on shutdown cooling) would be restricted by coordination between the Shift Manager and the Emergency Coordinator using Emergency Operating and Emergency Plan Implementing Procedure guidance, both of which focus on minimizing offsite releases.

All the procedures in use for this event provide directions geared toward minimizing offsite releases, establishing continuous monitoring of all release pathways and, as with all design basis events, ultimately placing the unit on long term (i.e., shutdown) cooling.

St. Lucie Units 1 and 2 L-2004-203 Docket Nos 50-335 and 50-389 Attachment 1 Page 7 of 36 NRC Question 7 is with regard to the Loss of Coolant (LOCA) analysis.

NRC Question 7.a: In §2.1.3 (Unit 1) or §2.1.4 (Unit 2), FPL states that they are assuming an aerosol deposition rate of 0.1 hf'. Since this parameteris somewhat dependent on plantparameters, the staff's prior approval of 0.1 hr' for another licensee may not be relevant to St. Lucie. Please provide a St. Lucie-specificjustification foryourproposed deviation from this guidance.

FPL Response to NRC Question 7.a: Section 3.2 of Appendix A to Regulatory Guide 1.183 identifies NUREG/CR-6189 (A Simplified Model of Aerosol Removal by Natural Processes in Reactor Containments) as an acceptable approach for assessing aerosol deposition. Table 34 of NUREG/CR-6189 presents decontamination coefficients for design basis accident aerosol deposition. These decontamination coefficients are presented as a function of thermal power, time range and release phase. Table 36 of NUREG/CR-6189 presents correlations to model these decontamination coefficients as a function of thermal power, time range and release phase. NUREG/CR-6604 (RADTRAD: A Simplified Model for RADionuclide Transport and Removal And Dose Estimation)

Table 2.2.2.1-1 presents correlations for determining the same natural deposition aerosol decontamination coefficients as a function of power, time and release phase (same as Table 36 of NUREG/CR-6189, but sums the gap and early in-vessel release phases). Thermal power is the only parameter that is varied in this table. The following is an excerpt from page 5 of the Safety Evaluation for Kewaunee Nuclear Power Plant Amendment No. 166 to DPR-43 dated March 17, 2003 (ADAMS Accession No. ML030210062):

"The fission products in the containment atmosphere following the postulated LOCA [are] mitigated by natural deposition processes and by the containment spray system (CSS). The licensee assumed a radioactive aerosol removal rate of 0.1 per hour in the containment atmosphere. This removal credit is taken after the CSS operation is terminated. The NRC staff finds 0.1 per hour aerosol removal rate to be reasonable (within the 85 percent of the uncertainty distribution) based on [the] study published in NUREG/CR-6189, -A Simplified Model of Aerosol Removal by Natural Processes in Reactor Containments," and [it] is therefore acceptable."

This conclusion applies to both St. Lucie units since the analyzed St. Lucie thermal power level (2700 MWt) is greater than the Kewaunee Nuclear Power Plant analyzed thermal power level (1851.3 MWt) and the values of decontamination coefficients in Table 2.2.2.1-1 of NUREG-6604 increase with thermal power. Thus, use of the 0.1 per hour rate is conservative for the St. Lucie plants.

NRC Question 7.b: Regarding §2.1.2.19 through §2.1.2.22 and §2.1.3 (Unit 1) or §2.1.4 (Unit 2), the staff cannot find FPL's treatment of Emergency Core Cooling System (ECCS) leakage acceptable without additional supportingjustifications for the following deviations from guidance:

Regulatory Position 5.3 states that "with the exception of iodine, all radioactive materials in the recirculating liquid are assumed to be retained in liquid phase." FPL has stated that "this analysis assumes that all of the elemental and organic iodine in the leaked fluid is volatile and becomes an airbome release to the ECCS area. Furthermore, all of the particulates in the 10 percent flashed fraction of the release are assumed to become airbome in the ECCS area."

Regulatory Positions 5.4 and 5.5 provide that the flashing fraction is to be based on the fraction of the total iodine in the liquid.

Regulatory Position 5.6 states that the radioiodine available for release is assumed to be 97

St. Lucie Units 1 and 2 L-2004-203 Docket Nos 50-335 and 50-389 Attachment 1 Page 8 of 36 percent elemental and 3 Percent organic. FPL states that the temperature andpH history of the sump and Refueling Water Storage Tank (RWST) are considered in determining the chemical form of iodine.

§2.1.2 states that the revised LOCA dose consequence analysis is consistent with the guidance provided in Regulatory Guide (RG) 1.183, Appendix A, yet the LAR for Unit 2 (LAR 2) analysis does not appear to be consistent with the guidance provided in RG 5.6. Position 5.6 states that the radioiodine that is postulated to be available for release to the environment is assumed to be 97 percent elemental and 3 percent organic. The LARs assume that the chemical form of the Engineered Safety Feature (ESF) leakage is 95 percent to 99.6 percent aerosol, 0.25 percent to 4.85 percent elemental and 0.15 percent organic. The statement that the LARs are consistent with RG 1.183 does not appearto be correct and should be modified. The staff does not believe that the assumption that the form of the iodine in the sump water is the same as the chemical form of the ESF leakage is accurate.

The staff structured these regulatory positions to be deterministic and conservative in order to compensate for the lack of research into iodine speciation beyond the containment, and the uncertainties of applying laboratory data to the post-accident environment of the plant. Regulatory Position 5.5 does state that a smaller flash fraction could be justified based on the actual sump pH history and area ventilation rates. The staff believes that FPL has not provided sufficient data for the staff to find its proposed treatment of ECCS leakage adequately conservative. Please provide a quantitative justification for your assumptions including, but not limited to, the following information:

1. The staff requests clarification regarding the amount of iodine released from the ECCS leakage.

2. A full description of the iodine speciation analysis that supports your assumptions, including methodology, assumptions, input data. Consideration should be given to the mass transfer at the surface of the ESF leakage water pool, the possibility of evaporation to dryness, available experiments tojustify the assumed chemical forms, and the potential for changing pH in all areas subject to ESF leakage.

3. A discussion of how the iodine speciation may change as the containment sump water is circulated through the ECCS components and piping and out to the RWST.

4. A discussion of the impact of all possible post-accident liquid inputs to the RWST, including the possible post-accident refilling of the RWST with other sources of water.

5. A discussion on how the iodine speciation might change as the ECCS leakage is sprayed out of a leak, or streams across a floor into a building sump.

FPL Response to NRC Question 7.b: The ECCS portion of the St. Lucie LOCA dose was considered in two parts; the dose due to leakage from ECCS components outside of containment and the dose due to leakage back into the RWT. The responses are provided based on the two parts.

Leakage from ECCS Components Based on direction from the NRC staff, the St. Lucie Unit 1 and Unit 2 LOCA ECCS leakage cases were recalculated with the assumption of 10% total iodine release consisting of 97% elemental and

St. Lucie Units 1 and 2 L-2004-203 Docket Nos 50-335 and 50-389 Attachment 1 Page 9 of 36 3% organic iodine. The new ECCS leakage dose contributions resolve NRC Questions 7.b.1, 7.b.2 and 7.b.5.

For St. Lucie Unit 1, the ECCS leakage dose to the control room increased from 5.9909E-2 rem to 8.0192E-2 rem. The total control room dose increased from 4.88 rem to 4.90 rem.

For St. Lucie Unit 2 the original license amendment request did not take credit for the ECCS Area Ventilation charcoal filters. However, in order to accommodate the NRC's subsequent iodine release assumptions and maintain operational flexibility, FPL revised the analysis to take credit for the ECCS Area Ventilation charcoal filters. Therefore, under separate correspondence, FPL will submit and justify the proposed changes to Surveillance Requirement 4.7.8 that will include surveillance requirements for the ECCS Area Ventilation System charcoal filters to assure the filters meet the flowrate and filtration efficiency assumed in the AST analyses. When credit is taken for the ECCS Area Ventilation charcoal filters, the ECCS leakage dose to the control room decreased from 1.9596E-1 rem to 1.5092E-1 rem. The total control room dose decreased from 4.97 rem to 4.93 rem.

Leakage to RWT The following response is provided with respect to NRC Questions 7.b.3 and 7.b.4. The brief response to NRC Question 7.b.3 is that containment sump, piping and RWT pH history and temperature are conservatively considered in the determination of iodine speciation for RWT releases.

The brief response to NRC Question 7.b.4 is that other than the backleakage from recirculation, there are no other sources of water added to the RWT for a design basis LOCA with emergency recirculation functioning. Further details are described below.

St. Lucie Unit 1 For St. Lucie Unit 1, a minimum pH of 7.48 is achieved in the containment sump within 1 hour1.157407e-5 days <br />2.777778e-4 hours <br />1.653439e-6 weeks <br />3.805e-7 months <br /> based on the addition of NaOH via containment sprays. Under acidic conditions, the radioactivity in the sump water can induce a chemical transformation of the iodine compounds back into the elemental form. Figure 3.1 of NUREG/CR-5950 quantifies the extent of elemental iodine as a function of the solution pH. For the 1-hour value of St. Lucie Unit 1 containment sump pH of 7.48, no elemental iodine will be present in the sump water. At the time of recirculation, the St. Lucie Unit 1 containment sump pH will be 6.98. Figure 3.1 of NUREG/CR-5950 demonstrates that no elemental iodine will be generated at this pH; however, the analysis conservatively assumes that 4.85% of the total iodine released to the sump remains elemental during the time period between the start of recirculation when pH will be 6.98 and at 1 hour1.157407e-5 days <br />2.777778e-4 hours <br />1.653439e-6 weeks <br />3.805e-7 months <br /> when the pH will be 7.48. After 1 hour1.157407e-5 days <br />2.777778e-4 hours <br />1.653439e-6 weeks <br />3.805e-7 months <br /> when the containment sump pH is 7.48, the analysis conservatively assumes that 0.25% of the total iodine in the sump is elemental even though Figure 3.1 of NUREG/CR-5950 and other technical documents such as NUREG/CR-5732 clearly indicate that minimal (0.03% per NUREG/CR-5732) to no elemental iodine is expected in the sump water at this pH. The analysis also considers 0.15% organic iodine in the sump for all time periods.

Once recirculation begins, the recirculated water may leak back to the RWT. Recirculation, the associated RWT backleakage and releases from the RWT are conservatively assumed to begin at 15 minutes and continue throughout the 30-day period. Plant drawings indicate that the minimal pipe length the leaking flow would travel to the RWT is over 175 feet in uninsulated piping (with a volume of over 500 ft.3), a portion of which is located in a below-grade covered trench. The high pressure ECCS backleakage occurs into the water-filled RWT delivery piping system upstream of the release

St. Lucie Units 1 and 2 L-2004-203 Docket Nos 50-335 and 50-389 Attachment 1 Page 10 of 36 into the RWT. The maximum RWT backleakage value of 1 gpm is doubled to 2 gpm as required by RG 1.183. This flow traveling through the minimum pipe length from the recirculation flow path to the RWT would allow for cooling of any leakage of recirculated sump flow and assure that only liquid leaks back to the RWT. Once at the RWT, all backleakage enters undemeath the water level in the RWT. Therefore, airborne particulate release is not considered credible.

The minimum St. Lucie Unit 1 RWT pH at the time of recirculation is 4.5. For the Design Basis LOCA with ECCS leakage and emergency recirculation functioning, no additional water would be added to the RWT based on current St. Lucie operating procedures and licensing basis. This precludes any addition of water to the RWT from sources other than the ECCS backleakage that might have the potential to impact the pH.

When the recirculation leakage from the containment sump is introduced into the acidic solution of the RWT inventory, there is a potential for the particulate iodine to convert into the elemental form.

Based upon the initial RWT pH of 4.5, the amount of iodine converted to the elemental form in the RWT is determined based upon the data provided in NUREG-5950. It is conservatively assumed that 2.5% of the particulate iodine is converted into the elemental form when it is leaked into the RWT.

This conversion fraction is conservatively assumed to exist throughout the event even though the pH of the RWT is significantly neutralized during the course of the sump leakage. The model adds this regenerated elemental iodine to the RWT backleakage. The leakage is modeled as:

0 to 1 hour- 92.5% aerosol, 7.35% elemental, and 0.15% organic, and after 1 hour- 97.1% aerosol, 2.75% elemental, and 0.15% organic.

The elemental iodine in the liquid leaked into the RWT is assumed to become volatile and be partitioned between the liquid and vapor space in the RWT based upon the temperature dependent partition coefficient for elemental iodine as presented in NUREG-5950. The particulate portion of the leakage is assumed to be retained in the liquid phase of the RWT since no boiling occurs in the RWT.

The release of the activity from the vapor space within the RWT is calculated based upon the displacement of air by the incoming leakage and the expansion and contraction due to the diurnal heating and cooling of the contents of the RWT tank. The response to NRC Question 7.c addresses the vapor space release rate conservatisms.

St. Lucie Unit 2 For St. Lucie Unit 2, a pH of 7.1 is achieved in the containment sump within 1 hour1.157407e-5 days <br />2.777778e-4 hours <br />1.653439e-6 weeks <br />3.805e-7 months <br /> based on dissolving TSP in the containment sump water. Under acidic conditions, the radioactivity in the sump water can induce a chemical transformation of the iodine compounds back into the elemental form.

Figure 3.1 of NUREG/CR-5950 quantifies the extent of elemental iodine as a function of the solution pH. For the 1-hour value of St. Lucie Unit 2 containment sump pH of 7.1, no elemental iodine will be present in the sump water. At the time of recirculation, the St. Lucie Unit 2 containment sump pH will be 6.93. Figure 3.1 of NUREG/CR-5950 demonstrates that no elemental iodine will be generated at this pH; however, the analysis conservatively assumes that 4.85% of the total iodine released to the sump remains elemental during the time period between the start of recirculation when the pH will be 6.93 and 1 hour1.157407e-5 days <br />2.777778e-4 hours <br />1.653439e-6 weeks <br />3.805e-7 months <br /> when the pH will be 7.1. After 1 hour1.157407e-5 days <br />2.777778e-4 hours <br />1.653439e-6 weeks <br />3.805e-7 months <br /> when the containment sump pH is 7.1, the analysis conservatively assumes that 0.25% of the total iodine in the sump is elemental even though Figure 3.1 of NUREG/CR-5950 and other technical documents such as NUREG/CR-5732 clearly indicate that minimal (0.03% per NUREG/CR-5732) to no elemental iodine is expected in the sump water at this pH. The analysis also considers 0.15% organic iodine in the sump for all time periods.

St. Lucie Units 1 and 2 L-2004-203 Docket Nos 50-335 and 50-389 Attachment 1 Page 11 of 36 Once recirculation begins, the recirculated water may leak back to the RWT. Recirculation, the associated RWT backleakage and releases from the RWT are conservatively assumed to begin at 15 minutes and continue throughout the 30-day period. Plant drawings indicate that the minimal pipe length the leaking flow would travel to the RWT is over 175 feet in uninsulated piping (with a volume of over 500 ft.3), a portion of which is located in a below-grade trench. The high pressure ECCS backleakage occurs into the water-filled RWT delivery piping system upstream of the release into the RWT. The maximum RWT backleakage value of 1 gpm is doubled to 2 gpm as required by RG 1.183. This flow traveling through the minimum pipe length from the recirculation flow path to the RWT would allow for cooling of any leakage of recirculated sump flow and assure that only liquid leaks back to the RWT. Once at the RWT, all backleakage enters underneath the water level in the RWT. Therefore, airborne particulate release is not considered credible.

The minimum St. Lucie Unit 2 RWT pH at the time of recirculation is 4.8 (note - Unit 2 RWT maximum boric acid concentration is less than Unit 1 RWT). For the Design Basis LOCA with ECCS leakage and emergency recirculation functioning, no additional water would be added to the RWT based on current St. Lucie operating procedures and licensing basis. This precludes any addition of water to the RWT from sources other than the ECCS backleakage that might have the potential to impact the pH.

When the recirculation leakage from the containment sump is introduced into the acidic solution of the RWT inventory, there is a potential for the particulate iodine to convert into the elemental form.

Based upon the initial RWT pH of 4.8, the amount of iodine converted to the elemental form in the RWT is determined based upon the data provided in NUREG-5950. It is conservatively assumed that 1.75% of the particulate iodine is converted into the elemental form when it is leaked into the RWT.

This conversion fraction is conservatively assumed to exist throughout the event even though the pH of the RWT is significantly neutralized during the course of the sump leakage. The model adds this regenerated elemental iodine to the RWT backleakage. The leakage is modeled as:

0 to 1 hour- 93.25% aerosol, 6.6% elemental, and 0.15% organic, and after 1 hour- 97.85% aerosol, 2% elemental, and 0.15% organic.

The elemental iodine in the liquid leaked into the RWT is assumed to become volatile and be partitioned between the liquid and vapor space in the RWT based upon the temperature dependent partition coefficient for elemental iodine as presented in NUREG-5950. The particulate portion of the leakage is assumed to be retained in the liquid phase of the RWT since no boiling occurs in the RWT.

The release of the activity from the vapor space within the RWT is calculated based upon the displacement of air by the incoming leakage and the expansion and contraction due to the diurnal heating and cooling of the contents of the RWT tank. The response to NRC Question 7.c addresses the vapor space release rate conservatisms.

As a result of FPL's response to this question a revision to the Unit 2 AST LOCA analyses has been completed and a conforming Unit 2 Technical Specification change is being developed. The Technical Specification change will be provided to the NRC under separate cover.

St. Lucie Units 1 and 2 L-2004-203 Docket Nos 50-335 and 50-389 Attachment 1 Page 12 of 36 NRC Question 7.c: In §2.1.3 (Unit 1)or §2.1.4 (Unit 2) the release of the activity from the vapor space within the Refueling Water Tank (RWT) is based upon the displacement of air by incoming leakage and the expansion and contraction due to the diurnal heating and cooling of the contents of the RWT. Please address the following:

1. Please provide the analysis or the assumptions, methods and inputs of the analysis that determined this activity released. Justify why the analysis is conservative.

2. Was evaporation of the RWT water considered as a contributor to the air flow rate?

3. Since the iodine partition is the ratio of the vapor pressures of the iodine in the liquid and gas phases in the RWT, please discuss the impact of tank pressure changes associated with diurnal temperature swings.

4. As noted above, the staff questions the iodine fraction value.

FPL Response to NRC Question 7.c: In response to NRC Question 7.c.1, the release of the activity from the vapor space within the RWT is conservatively calculated based upon the displacement of air by the incoming leakage and the expansion and contraction due to the diurnal heating and cooling of the contents of the RWT tank as described below. In response to NRC Question 7.c.2, evaporation was inherently considered by the methodology used to determine the release from the RWT. In response to NRC Question 7.c.3, the RWT is vented to the atmosphere, which provides for the release path. Based on the small flow exiting the tank, pressurization is not a consideration. In response to NRC Question 7.c.4, please see the response to Question 7.b.3 above. Further details are described below.

As presented in Section 1.8.3 of the AST Licensing Technical Reports for St. Lucie Unit 1 and St.

Lucie Unit 2 (NAI-1101-043, Revision 1 or Enclosure 1 to L-2003-224 and NAI-1101-044, Revision 1 or Enclosure 1 to L-2003-220): 'The average air temperature range over the five years of meteorological data is calculated to be a 9.6 0F temperature swing over any 24-hour period." The modeling of the potential releases from the RWT over an extended period of time is subject to a number of subtle factors that cannot be reasonably computed or modeled. The approach used in this analysis was to impose some very conservative assumptions to bound the major factors and use engineering judgment to conclude that these major conservatisms provided adequate margin to cover the more subtle phenomenon taking place in the tank.

The assumed daily expansion and contraction of the vapor in the RWT contributes substantially to the volumetric, and therefore, the radiological release from the RWT. Without the daily expansion and contraction cycle the release would be limited to the small volume of vapor/air mixture displaced by the backleakage flow. Therefore, the conservative treatment of the daily air/vapor expansion and contraction is a major conservatism in the overall computation of the dose contribution from this source. The assumption that the internal temperature of the tank will be subject to the same daily temperature swings as experienced for the outside air is itself very conservative. This assumption ignores the substantial thermal mass of the tank walls and the liquid in the tank. Considering the mass of the water in the tank it is expected that the water temperature would not vary significantly on a daily basis. Rather than attempting to model or estimate the impact of these factors, the analysis simply made the very conservative assumption that the tank internal temperature could swing as high as the daily outside air temperature swing. Again, considering the extent to which this assumption is conservative and the sensitivity of the dose assessment on this parameter, this constitutes a major conservatism in this dose contribution.

St. Lucie Units 1 and 2 L-2004-203 Docket Nos 50-335 and 50-389 Attachment 1 Page 13 of 36 Evaporation is not specifically computed as an individual contribution to the air flow rate from the tank; however, it is essentially included in the air flow rate because it was assumed that the air/vapor space in the tank would achieve an equilibrium vapor pressure with the liquid phase. Therefore the previously discussed air/vapor release from the tank due to daily heating and cooling includes water vapor evaporated to maintain that equilibrium. This is consistent with the modeling of the release from the RWT that assumes that the activity in the vapor space is in equilibrium with the activity in the liquid space based upon the elemental iodine partition factor calculated for liquid temperature. In this respect, this analysis does account for evaporation. It should be noted that the analysis does not assume any heat losses from the tank either through evaporation or conduction throughout the 30 days of the event. This assumption is imposed in order to establish a conservatively high RWT water temperature that provides a conservative partition factor for elemental iodine between the liquid and vapor space. The partition factor is very sensitive to temperature and a more realistic model considering the heat losses from the tank over several days would produce substantially lower elemental iodine concentrations in the tank vapor space and correspondingly lower activity releases.

This "no heat loss" assumption represents another major conservatism inherent in the analysis.

To maximize the release from the tank, no flow restriction is credited through the tank vent path and the tank is assumed to remain at atmospheric pressure. If even slight pressurization of the tank could be credited, the daily heating cooling cycle release flow could be reduced or eliminated and the dose would be significantly reduced. This would be expected to more than offset the impact that such a slight pressure change would have on the iodine partition factor in the tank.

As demonstrated by the discussion above, the complexity and uncertainties in the analysis of the dose contribution from the RWT have been addressed by imposing some very conservative simplifying assumptions on aspects of the analysis that are difficult to quantitatively assess. As discussed in other responses to questions concerning the iodine species in the sump and RWT water, this very conservative treatment of uncertain conditions is also inherent in the assumptions and modeling used in those aspects of the analysis. The imposition of these multiple combined conservatisms provide confidence that the overall assessment of the dose from this aspect of the event is conservative.

NRC Question 7.d: In §2.1.3 (Unit 1) or §2.1.4 (Unit 2), the maximum Decontamination Factor (DF) for elemental and particulate iodine are discussed. Please explain how the initial maximum airborne iodine concentration in the containment was determined for this determining DF.

FPL Response to NRC Question 7.d: The method used for determining the length of time of spray effectiveness for St. Lucie was consistent with or conservative when compared to prior NRC-approved methods for determining the effectiveness of sprays in Alternative Source Term submittals. At St.

Lucie, the maximum iodine concentration occurs at the end of the early in-vessel release phase (1.8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br />). The time to reach a decontamination factor of 200 was determined by the following equation:

A(t) = Ae w where: A(t) = amount of iodine as a function of time N = initial amount of iodine

?= iodine spray removal coefficient t=time

St. Lucie Units 1 and 2 L-2004-203 Docket Nos 50-335 and 50-389 Attachment 1 Page 14 of 36 Thus the time to reach a DF of 200 can be determined:

1/200 = e-(20)t t = 0.265 hours0.00307 days <br />0.0736 hours <br />4.381614e-4 weeks <br />1.008325e-4 months <br /> Adding 1.8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br /> for the time to reach peak iodine gives 2.065 hours7.523148e-4 days <br />0.0181 hours <br />1.074735e-4 weeks <br />2.47325e-5 months <br /> to reach a DF of 200.

In response to the NRC staffs question, the peak containment atmospheric elemental iodine concentration was re-determined without including containment sprays. The method used in the St.

Lucie AST submittal to determine the length of time during which the sprays are effective was found to be conservative relative to a method for determining the peak containment atmosphere elemental iodine concentration without sprays and based on definitions in the Standard Review Plan (SRP). As discussed in the SRP, the iodine decontamination factor (DF) is a function of the effective iodine partition coefficient between the sump and containment atmosphere. Thus, the loss of iodine due to other mechanisms (containment leakage and surface deposition) would not be included in the determination of the time required to reach a DF of 200. In addition, since the iodine in the containment atmosphere and sump is decaying at the same rate, decay should not be included in determining the time to reach a DF of 200. Additional RADTRAD-NAI cases were performed to provide a comparison of the two methods for determining the time to reach a decontamination factor of 200.

Two additional RADTRAD-NAI cases were run to determine the impact of not including sprays in the determination of the peak containment atmosphere elemental iodine concentration. The first RADTRAD-NAI case was used to determine the peak containment atmosphere elemental iodine concentration. This case included:

• No containment spray

• No surface deposition

• No decay The second RADTRAD-NAI case determined the elemental iodine DF at 2.065 hours7.523148e-4 days <br />0.0181 hours <br />1.074735e-4 weeks <br />2.47325e-5 months <br /> based on the peak iodine concentration from the first RADTRAD-NAI case. The second RADTRAD-NAI case included:

• Containment sprays actuated at 0.01806 hours (65 seconds)

• No surface deposition

• No decay Based on this method, a DF of approximately 29 was reached at 2.065 hours7.523148e-4 days <br />0.0181 hours <br />1.074735e-4 weeks <br />2.47325e-5 months <br />.

Thus, the time to reach a DF of 200 used for the St. Lucie AST submittal is more conservative than the method that does not include sprays in the determination of the peak containment atmosphere elemental iodine concentration and follows the SRP definitions.

St. Lucie Units 1 and 2 L-2004-203 Docket Nos 50-335 and 50-389 Attachment 1 Page 15 of 36 NRC Question 7.e: The Updated Final Safety Analysis Report (UFSAR) provides an analysis of the consequences of post-accident hydrogen venting as a backup to the redundant hydrogen recombiners. This analysis was not addressed in the submittal, Is it FPL's intent to remove this analysis from the licensing basis? If not, why was this component of the LOCA not addressed in the license amendment request?

FPL Response to NRC Question 7.e: The consequences of post-accident hydrogen venting were not considered in the AST submittal since venting is not the credited means of hydrogen control. As discussed in UFSAR Section 6.2.5.2, the hydrogen recombiners are the credited means for hydrogen control. Therefore, the subject event will be removed from the licensing basis.

NRC Question 7.F: §2.1.2.5 states that the mixing rate is assumed to be two turnovers of the unsprayed region per hour. RG 1.183, Regulatory Position 3.3 provides this as a default assumption, if adequate flow exists between these two regions. Please briefly describe the basis for assuming that this flow will exist between the sprayed and unsprayed region.

FPL Response to NRC Question 7.f: Per page 6B-18 of the St. Lucie Unit 1 UFSAR and Table 15.6.6-11 of the St. Lucie Unit 2 UFSAR, the existing design basis for the mixing rate between the sprayed and unsprayed regions of containment is 4 unsprayed volumes per hour. There is no reason for this value to change based on Alternative Source Term; however, the value was reduced to two turnovers per hour consistent with RG 1.183. Note also that NUREG/CR-4102 (Air Currents Driven by Sprays in Reactor Containment Buildings) supports significantly higher mixing rates based on the operation of containment sprays.

NRC Question 7.g: LAR 2 Table 2.1-1 states that the secondary containment drawdown time is 135 seconds. UFSAR for Unit 2, §6.2.3.2.2, 'Shield Building Ventilation System"states: "Within 310 seconds after a LOCA, the Shield Building annulus pressure is below atmospheric.' What changes were made so that a shorter drawdown time could be utilized in the radiological analysis?

FPL Response to NRC Question 7.g: No plant changes were made. The St. Lucie Unit 2 UFSAR was not used as the reference for the SBVS drawdown time and will be revised upon NRC approval of the St. Lucie Unit 2 AST LAR. The drawdown time was the sum of the time to achieve a signal to start SBVS (such as containment pressure in 1.5 seconds) plus the response time of the associated signal instrumentation (such as 26 seconds for containment high pressure instrumentation, including diesel generator start and load sequence delays) plus the drawdown time from Technical Specifications for St. Lucie Unit 2 (99 seconds from T/S 4.6.6.1.d.4). The 135 second value bounds the 126.5 second total.

NRC Question 7.h: UFSAR for Unit 2, Table 6.4-2 provides the control room 30 day post-LOCA doses from major external radiation sources. The value for the total dose is less than 1.4 rem. Table 1.6.3-2 of the LAR for both units provide the LOCA direct shine dose. The total doses from these tables are 0.168 and 0.282 rem, respectively. Please explain the differences between the UFSAR analyses and the LAR analyses for both units.

FPL Response to NRC Question 7.h: The UFSAR table values represent previous analysis results.

Upon NRC approval, the AST analyses will become the analyses of record. MicroShield v5.05 was used in the AST analyses to determine the direct shine dose from the various sources. The

St. Lucie Units 1 and 2 L-2004-203 Docket Nos 50-335 and 50-389 Attachment I Page 16 of 36 MicroShield case file inputs and output are provided as Attachment 6. The input for the isotopic concentrations for the cases at various time points for each source was taken from RADTRAD-NAI output (containment volume for containment source, filtered pathway for the filter source, and environment volume for the cloud source).

For the direct shine from the filters, the largest shielded dose contributor, the RADTRAD-NAI runs that generate the isotopic concentrations for MicroShield use control room filtered flow and unfiltered inleakage values that are larger than the final analyzed values. In other words, MicroShield used a filter dose associated with a LOCA event with a greater control room dose than that of the submitted AST LOCA case. This ensures that the isotopic concentration on the filters, and consequently the direct shine dose, is conservatively high.

NRC Question 7.1: UFSAR for Unit 2, Figure 15.6.6-9a, 'Containment Leakage Dose Model,"

illustrates the flowpath models for containment leakage. Flowpaths 10 and 11 provide the leakage into the negative pressure area of the reactor auxiliary building and directly to the environment. How is this bypass flow split between these two flow paths? Please provide a table giving the flow rates vs. time after a LOCA for all release pathways for both units. Provide a justification for the values used.

1. §2.1.3 (Unit 1)and §2.1.4 (Unit 2) state that the activity that bypasses the secondary containment is assumed to have leaked within the reactor auxiliary building where it is collected by the ventilation system and released to the environment via ground level release from the plant stack without assumed filtration. Page 16.6-107, Figure 15.6.6-9a of the UFSAR for Unit 2 shows a bypass pathway noted as number 11 that bypasses the shield building annulus directly to the environment. Please explain why the original licensing bases appear to consider a portion of the bypass flow to areas other than the reactor auxiliary building, yet the proposed change does not.

2. §2.1.2.11 states that "the leakage from containment collected by the secondary containment is processed by ESF filters prior to an assumed ground level release." Please clarify if this means that the release path is via the shield building ventilation system. If this is correct explain why other pathways are not considered (for example via the reactor auxiliary building to the controlled ventilation area system). If the pathway via the shield building ventilation system is more conservative, explain why.

3. For the release from the containment purge coincident with a LOCA provide the chemical form of iodine released andjustify these values. Also, provide the flow rates out of the containment purge, the closure time assumed after a LOCA andjustify the particulate, elemental and organic iodine filtration efficiencies for the containment purge. Include the bed size (2" or 4) of the carbon absorbers and the test method used to verify the efficiencies.

FPL Response to NRC Question 7.i: Upon NRC approval of the Unit 2 LAR, the subject UFSAR figure will be obsolete and will be revised or removed as part of the normal UFSAR update process.

The AST analysis performed utilized a containment leakage rate of 0.5 wt%/day for the first 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> followed by 0.25 wt%/day for the period from 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> to 30 days. Prior to SBVS drawdown, the analysis conservatively assumes that all of the containment leakage bypasses the SBVS and is released as unfiltered leakage to atmosphere. Following SBVS drawdown, 9.6% of this containment leakage is assumed to bypass the SBVS based on the proposed SBVS bypass leakage Technical Specification change submitted with the AST LAR. All of this bypass leakage is assumed to be released as unfiltered leakage to atmosphere. The bypass leakage occurs via piping and other

St. Lucie Units 1 and 2 L-2004-203 Docket Nos 50-335 and 50-389 Attachment 1 Page 17 of 36 enclosed containment flow paths that penetrate containment and the shield building and the leakage is not directly released to the outside environment since it enters other buildings. The bypass leakage occurs in the reactor auxiliary building or the fuel handling building. Use of the unfiltered release from the reactor auxiliary building is conservative compared to a release from the fuel handling building.

The containment leakage flow rates are as follows:

St. Lucie Unit 1 Unfiltered Bypass Unfiltered Leakage from Leakage from Filtered Leakage Time Period Stack via Auxiliary Containment from Stack Building Closest Point (cfm)

(cfm) (cfm) 0- 120 sec.837 7.868 (Drawdown)083788 120 sec - 24 h 0.837 _ 7.868 24 h -30 d 0.4185 3.933 St. Lucie Unit 2 Unfiltered Bypass Unfiltered Leakage from Leakage from Filtered Leakage Time Period Stack via Auxiliary Containment from Stack Building Closest Point (cfm)

(cfm) (cfm) 0- 135 sec.835 7.847 (Drawdown) 135 sec - 24 h 0.835 7.847 24 h - 30 d 0.418 3.929 Due to the configuration of the bypass leakage locations, the original AST analyses for both St. Lucie units assumed that the 9.6% bypass leakage was unfiltered from the stack via the reactor auxiliary building for the entire event. The analyses for both St. Lucie units were re-run with all of the containment leakage prior to drawdown from the closest containment penetration. The change in the total Control Room dose for both units was in the ten-thousandths place and was not noticeable based on the reported significant figures.

The containment purge release occurs prior to 30 seconds when isolation of the purge line occurs.

The onset of gap release occurs at 30 seconds, so the RCS activity is the basis for the containment purge source term. The dose and filter loading from the containment purge is insignificant (0.0026 rem to the control room for Unit 1 and 0.0021 rem to the control room for Unit 2). There is no credit for filtration for St. Lucie Unit 2 for containment purge. The credited St. Lucie Unit 1 containment purge filters meet the guidance of RG 1.52 and GL 99-02 (with testing per OSP-25.04) and utilize an efficiency of 99% for elemental, organic and aerosol iodine, which is conservative compared to the prior UFSAR efficiency.

St. Lucie Units 1 and 2 L-2004-203 Docket Nos 50-335 and 50-389 Attachment 1 Page 18 of 36 NRC Question 7.j: UFSAR for Unit 2, Figure 15.6.6-9a, "ContainmentLeakage Dose Model,"

illustrates the flow path models for containment leakage. Flow path 10 indicates bypass flow directly into the reactor auxiliary building. Since the control room envelope is contained in the reactor auxiliary building, justify why the unfiltered inleaka-ge for both units is currently taken from the average of the two remote intakes rather than from inleakage pathways from reactor auxiliary building to the control room envelope.

FPL Response to NRC Question 7j: As noted in response to NRC Question 7.i, upon NRC approval of the Unit 2 LAR, the subject UFSAR figure will be obsolete and will be revised or removed as part of the normal UFSAR update process.

The control room ventilation systems are independent from the other auxiliary building ventilation systems that collect the unfiltered bypass leakage. The ventilation systems that collect the unfiltered bypass leakage do not communicate with any spaces adjacent to the control room. Unit I testing demonstrated that a significant portion of the control room unfiltered inleakage comes from the cable spreading room. The air for the cable spreading room is supplied from an adjacent location to the south normal CR intake. Unit 2 testing demonstrated that a large portion of the control room unfiltered inleakage comes from the B switchgear room. This room is fed from fans that take suction in the vicinity of the south normal control room intake. For both units, the atmospheric dispersion factors for the south control room intake are lower than the other possible receptor points. Therefore, assigning the unfiltered inleakage to the open intake or midpoint of the outside building wall is conservative, or at worst accurate.

Prior to intake isolation, the unfiltered inleakage is assigned to the north receptor X/Q value. This is always higher than the south receptor, and therefore conservative. During intake isolation the unfiltered inleakage is assigned to a receptor at the midpoint between the intake locations. These X/Q values are always higher than those at the south intake, and are therefore conservative. After isolation, the south intake location is used as the receptor for the unfiltered inleakage. As the paragraph above states, this is appropriate as it is the genesis point for a significant portion of the unfiltered inleakage into the control room.

NRC Question 7.k: The UFSAR for Unit 2 states that the inleakage due to opening and closing doors in the control room is 3 cOn. What is the amount due to opening and closing doors assumed in the LAR control room dose models for each unit? Justify or reference the design basis values.

FPL Response to NRC Question 7.k: Section 6.4.2.3 of the Unit 2 UFSAR credits the self-closing double air lock door design and states that control room unfiltered inleakage resulting from ingress and egress is considered to be zero. Nevertheless, FPL will assign a total door inleakage value of 10 cfm for both Unit 1 and Unit 2.

Per Reg. Guide 1.197 (May 2003) and Appendix D of NEI 99-03 (Rev. 1), 10 cfm is considered an accepted assumption for inleakage associated with control room ingress and egress. The allowed measured (tested) unfiltered inleakage values for each unit will be reduced by this amount, thereby making the Unit 1 allowed (for testing) unfiltered leakage limit 570 cfm and the Unit 2 allowed (for testing) unfiltered leakage limit 530 cfm. Upon NRC approval of the Unit 1 and Unit 2 LARs, the UFSARs will be revised accordingly.

St. Lucie Units 1 and 2 L-2004-203 Docket Nos 50-335 and 50-389 Attachment 1 Page 19 of 36 NRC Question 7.1: LAR for Unit 1 (LAR 1) Table 2.1.1 states that the secondary containment filter efficiencies for Unit 1 are: 99 percent forparticulate, and 97.5 percent for elemental and organic iodine. The UFSAR for Unit 1,§6.2.3.3.1 states that the Service [sic] Building Ventilation System (SBVS) filter efficiencies are: 99 percent for particulate, 95 percent for elemental and 95 percent for organic. Please explain why these values are different andjustify the changes.

LAR 2 Table 2.1.1 states that the secondary containment filter efficiencies for Unit 2 are: 98 percent for particulate, and 89 percent for elemental and organic iodine. UFSAR for Unit 2, Table 15.6.6-11 states that the SBVS filter efficiencies are: 99 percent forparticulate, 95 percent for elemental and 50 percent for organic. Please explain why these values are different andjustify the changes.

FPL Response to NRC Question 7.1: The St. Lucie Unit 1 and Unit 2 UFSAR values for SBVS filter efficiencies were not used in the AST analyses. The UFSAR values reflect efficiencies assumed in past analyses. Upon NRC approval of the Unit 1 and Unit 2 LARs, the subject UFSAR information will be obsolete and will be revised or removed as part of the normal UFSAR update process. The SBVS filter efficiencies used for the current AST analyses were based on the tested values as required by Technical Specifications for both St. Lucie Units:

According to the Technical Specifications (Section 4.6.6.1), the Unit 1 SBVS Filter Efficiencies are:

Aerosol 99%

Elemental 97.5%

Organic 97.5%

According to the Technical Specifications (Section 4.6.6.1), the Unit 2 SBVS Filter Efficiencies are:

Aerosol 99.825%

Elemental 90%

Organic 90%

NRC Question 7.m: Verify that the MAR 1 containment releases prior to drawdown are assumed from the nearest penetration to the control room ventilation intake. If notjustify the release point assumed.

FPL Response to NRC Question 7.m: As described in the response to NRC Question 7.i, based on the configuration of the bypass leakage locations, the original AST analyses for both St. Lucie units assumed that the 9.6% bypass leakage was unfiltered from the stack via the reactor auxiliary building for the entire event. The analyses for both St. Lucie units were re-run with all of the containment leakage prior to drawdown from the closest containment penetration. The change in the total Control Room dose for both units was in the ten thousandths place and was not noticeable based on the reported significant figures.

St. Lucie Units 1 and 2 L-2004-203 Docket Nos 50-335 and 50-389 Attachment 1 Page 20 of 36 NRC Question 8 is with regard to the Steam Generator Tube Rupture (SGTR) analysis.

NRC Question 8.a: LAR I Table 2.4-1 lists an RCS mass of 480,472 Ibm and 438,783 Ibm. Table 2.4-4 lists an RCS mass of 438,783 Ibm. Table 2.6-1 lists a minimum RCS mass of 411,500 Ibm.

While the staff understands why minimum and maximum values may be used to maximize doses, it is not clear why the RCS mass assumed in establishing the iodine appearance rate was assumed to be 438,783 Ibm. Please explain the basis of this assumption.

LAR 2 Table 2.4-1 lists an RCS mass of 452,000 Ibm and 475,385 Ibm. Table 2.4-4 lists an RCS mass of 452,000 Ibm. Table 2.6-1 lists a minimum RCS mass of 385,113 Ibm and a maximum mass of 475,385 Ibm. While the staffunderstands why minimum and maximum values maybe used to maximize doses, it is not clear why the RCS mass assumed in establishing the iodine appearance rate was assumed to be 452,000 Ibm. Please explain the basis of this assumption.

FPL Response to NRC Question 8.a:

Iodine Appearance Rate In general, the dose calculations used the maximum RCS mass for calculations where the entire activity of the RCS was released or the release contribution from the initial RCS activity was being computed. The minimum RCS mass was used for cases where fuel failure activity was released into the RCS and mixing with the inventory in the pressurizer could not be assured.

For concurrent iodine spiking cases, an RCS mass was originally used to establish the RCS initial equilibrium iodine concentrations documented in the UFSARs which are subsequently used in this analysis to determine the iodine appearance rates. To be consistent with that basis, the appearance rate calculations (source term) used the same RCS mass as was assumed to establish the initial concentrations. To be consistent with the source term, the RADTRAD model uses the same RCS mass as was used to generate the source term.

The 1.0 pCi/gm dose equivalent I-131 equilibrium iodine activities were established by scaling the relative equilibrium iodine isotopic concentrations in the coolant presented in Table 11.1-1 of the Unit 1 UFSAR and Table 11.1-2 of the Unit 2 UFSAR.

The value of 438,783 Ibm for Unit 1 (based on the RCS volume listed in Table 11.1-2 of the Unit 1 UFSAR) and the value of 452,000 Ibm for Unit 2 (obtained from Table 11.1-1 of the Unit 2 UFSAR) were determined to be appropriate RCS mass values for the concurrent spiking calculations.

NRC Question 8.b: Bullet five of §2.4.2.12, states that SG tube bundle uncovery is not postulated for this event. Please justify this assumption.

FPL Response to NRC Question 8.b: Based on the analyses of record and historical trip data, no tube bundle uncovery is anticipated for the SGTR event. The SGTR analyses are provided in Unit 1 UFSAR Section 15.4.4 and Unit 2 UFSAR Section 15.6.2.1. The Unit 2 UFSAR analysis includes UFSAR Figure 15.6.2.1-39, which shows steam generator water mass as a function of time. Although no such figure is provided in the Unit 1 UFSAR, the system response for Unit 1 will be similar to that of Unit 2 due to the similarity of the plant configuration, including steam generator parameters and operating conditions.

St. Lucie Units 1 and 2 L-2004-203 Docket Nos 50-335 and 50-389 Attachment 1 Page 21 of 36 A similar figure, Figure 5.1.24-8, for the Unit 2 30% steam generator tube plugging case is provided in Section 5.1.24 of the Licensing Report included in FPL letter L-2003-276 (30% tube plugging LAR).

NRC Question 8.c: LAR I & LAR 2, Table 2.4-1, provides a break flow flash fraction of 8.76 percent.

Is this value the current licensing basis number? If not, please provide a justification for this value. If so, please provide a reference for this number.

FPL Response to NRC Question 8.c: For Unit 1, the broken tube break flow and flashing fraction were developed from a SGTR thermal hydraulic calculation that is more recent than the SGTR calculation currently documented in the Unit 1 UFSAR. The break flow and flashing fraction (8.76%)

presented in LAR 1 were evaluated and determined to conservatively bound the expected results of a SGTR for Unit 1 based on current Unit 1 initial operating conditions and current Unit 1 steam generator physical parameters.

The thermal-hydraulic analysis of the Unit 2 SGTR event has been revised to include 30% tube plugging (see FPL letter L-2003-276).

The new flashing fractions corresponding to the revised thermal-hydraulic analysis are:

pre-trip flashing fraction = 0.1719 post-trip flashing fraction = 0.066 The new Unit 2 SGTR dose results for the revised SGTR event are documented in FPL letter L-2003-276.

NRC Question 8.d: Please explain andjustify the assumptions that during the first 0.0915 hours0.0106 days <br />0.254 hours <br />0.00151 weeks <br />3.481575e-4 months <br /> of the SGTR 546,210 Ibm are released to the condenser then after 0.0915 the releases are to the Main Steam Safety Valves (MSSVs).

FPL Response to NRC Question 8.d: For the St. Lucie SGTR analyses, loss of offsite power is assumed to occur coincident with reactor trip. Therefore, prior to the reactor trip (0-0.0915 hours0.0106 days <br />0.254 hours <br />0.00151 weeks <br />3.481575e-4 months <br />),

steam release is via the condenser. After the reactor trip occurs, all of the steam release is assumed to be via the MSSVs.

NRC Question 9: With regard to the locked rotor analysis, the current licensing basis allows operation of the ADVs in automatic mode. The current licensing basis considers a stuck open ADV.

The staff does not understand, given the current licensing basis, how the proposed locked rotor analysis is conservative given that the stuck open ADV is not considered. Please provide additional justification in the form of an analysis to show how the omission of the stuck open ADV is conservative.

FPL Response to NRC Question 9: The locked rotor analysis assumes that the reactor is initially at full power.

Per Unit 2 Technical Specification LCO 3.7.1.7 the ADVs are not allowed to be in automatic mode at power levels exceeding 15%. Thus, the assumption of a stuck open ADV in automatic mode is not

St. Lucie Units 1 and 2 L-2004-203 Docket Nos 50-335 and 50-389 Attachment 1 Page 22 of 36 consistent with the assumption of full reactor power for the event. The proposed locked rotor analysis without a stuck open ADV is thus justified based on the current plant configuration as required by the Technical Specifications.

Note - this is a Unit 2 question only since the current Unit 1 licensing basis does not consider a coincident stuck open ADV, whereas the Unit 2 licensing basis does.

NRC Question 10 is with regard to the control element assembly ejection analysis.

NRC Question 10a: In the LAR Table 2.6-1 states that an aerosol deposition rate of 0.1 hr', is assumed. Please provide a Saint Lucie specificjustification for this assumed aerosol deposition rate.

FPL Response to NRC Question 10.a: Please see the response to NRC Question 7.a.

NRC Question 1Ob: LAR 2 Table 2.6-1 provides a secondary containment drawdown time of 240 second. The UFSAR for Unit 2, §6.2.3.2.2, "Shield Building Ventilation System"states: "Within 310 seconds after a LOCA, the shield building annulus pressure is below atmospheric." What changes were made so that a shorter drawdown time could be utilized in the radiological analysis?

FPL Response to NRC Question 10.b: No plant changes have been made. According to Table 13.7.2-2 of the Unit 2 UFSAR, the SBVS response time to a containment high radiation signal is 32.75 seconds. Unit 2 Technical Specification SR 4.6.6.1 specifies a drawdown time of 99 seconds for the SBVS after receipt of signal. This gives a total time of 131.75 seconds to drawdown below atmospheric pressure. Thus 240 seconds for SBVS drawdown used in the rod ejection dose analysis is conservative with respect to plant design.

NRC Question 10.c: Please confirm the staff's understanding that the 0.5 percent fuel centerline melt is referenced to the entire core and not only that fraction of the core that exceeds Departure from Nucleate Boiling.

FPL Response to NRC Question 1O.c: The staffs understanding is correct. The 0.5% fuel centerline melt is applied to the entire core.

NRC Question 11: UFSAR for Unit 2, Figure 15.6.6-9a, "Containment Leakage Dose Model,"

illustrates the flow path models for containment leakage. Flow paths 10 and 11 provide the leakage into the negative pressure area of the reactor auxiliary building and directly to the environment. How is this bypass flow split between these two flow paths? Please provide a table giving the flow rates versus time after a Control Element Assembly Ejection for all release pathways. Provide a justification for the values used.

FPL Response to NRC Question 11: Upon NRC approval of the Unit 2 LAR, the subject UFSAR figure will be obsolete and will be revised or removed as part of the normal UFSAR update process.

The AST analysis performed utilized a containment leakage rate of 0.5 wt%/day for the first 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> followed by 0.25 wt%/day for the period from 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> to 30 days. Prior to SBVS drawdown, the analysis conservatively assumes that all of the containment leakage bypasses the SBVS and is released as unfiltered leakage to atmosphere at the containment closest point. Following SBVS

St. Lucie Units I and 2 L-2004-203 Docket Nos 50-335 and 50-389 Attachment 1 Page 23 of 36 drawdown, 9.6% of this containment leakage is assumed to bypass the SBVS based on the proposed SBVS bypass leakage Technical Specification submitted with the AST LAR. All of this bypass leakage is assumed to be released as unfiltered leakage to atmosphere via the plant stack. The bypass leakage occurs via piping and other enclosed containment flow paths that penetrate containment and the shield building and the leakage is not directly released to the outside environment since it enters other buildings. The bypass leakage occurs in the reactor auxiliary building or the fuel handling building. Use of the unfiltered release from the reactor auxiliary building is conservative compared to a release from the Fuel Handling Building. The containment leakage flow rates are as follows:

St. Lucie Unit 1 Unfiltered Bypass Unfiltered Leakage from Leakage from Filtered Leakage Time Period Stack via Auxiliary Containment from Stack Building Closest Point (cfm)

(cfm) (cfm) 0 - 240 sec 8.7 (Drawdown) &7 240 sec- 24 h 0.8352 __7.8648 24 h - 30 d 0.4176 3.9324 St. Lucie Unit 2 Unfiltered Bypass Unfiltered Leakage from Leakage from Filtered Leakage Time Period Stack via Auxiliary Containment from Stack Building Closest Point (cfm)

(cfm) (cfm) 0 - 240 sec 8.7 (Drawdown) 240 sec - 24 h 0.84 __7.87 24 h-30 d 0.42 3.94

St. Lucie Units 1 and 2 L-2004-203 Docket Nos 50-335 and 50-389 Attachment 1 Page 24 of 36 NRC Question 12 is with regard to the letdown line rupture analysis.

NRC Question 12.a: LAR 2 Table 2.7-1 lists an RCS mass of 452,000 Ibm. Table 2.7-3 lists an RCS mass of 452,000 Ibm. Table 2.6-1 lists a minimum RCS mass of 385,113 Ibm and a maximum mass of 475,385 ibm. While the staff understands whyminimum andmaximum values maybe used to maximize doses, it is not clear why the RCS mass assumed in establishing the iodine appearance rate was assumed to be 452,000 Ibm. Please explain the basis of this assumption.

FPL Response to NRC Question 12.a:

Iodine Appearance Rate In general, the dose calculations used the maximum RCS mass for calculations where the entire activity of the RCS was released or the release contribution from the initial RCS activity was being computed. The minimum RCS mass was used for cases where fuel failure activity was released into the RCS and mixing with the inventory in the pressurizer could not be assured.

For concurrent Iodine spiking cases, an RCS mass was originally used to establish the RCS initial equilibrium iodine concentrations documented in the UFSAR which is subsequently used in this analysis to determine the Iodine appearance rates. To be consistent with that basis, the appearance rate calculations (source term) used the same RCS mass as was assumed to establish the initial concentrations. To be consistent with the source term, the RADTRAD model uses the same RCS mass as was used to generate the source term.

The 1.0 pCi/gm dose equivalent 1-131 equilibrium iodine activities were established by scaling the relative equilibrium iodine isotopic concentrations in the coolant presented in Table 11.1-2 of the Unit 2 UFSAR.

The value of 452,000 Ibm for Unit 2 (obtained from Table 11.1-1 of the Unit 2 UFSAR) was determined to be the appropriate RCS mass value for the concurrent spiking calculations.

NRC Question 12.b: LAR 2 §2. 7.5, Table 1.8.1-3 presents the Release-Receptor pairs applicable to the dose from the Locked Rotor release points for the different modes of Control Room operation during the event. Clarify the intent of this sentence in relation to the letdown line rupture accident.

FPL Response to NRC Question 12.b: This is a typo. The referenced sentence in Section 2.7.5 of LAR 2 should state:

"Table 1.8.1-3 presents the Release-Receptor pairs applicable to the dose from the Letdown Line Rupture release points for the different modes of Control Room operation during the event."

NRC Question 13 is with regard to the waste gas decay tank (WGDT) rupture analysis.

NRC Question 13.a: §2.9.3 states, radioactive decay is assumed only for the minimum period of time required to transfer the gases to the gas decay tank. What is the minimum period of time used in the analysis? Justify the value used.

St. Lucie Units 1 and 2 L-2004-203 Docket Nos 50-335 and 50-389 Attachment 1 Page 25 of 36 FPL Response to NRC Question 13.a: The statement "radioactive decay is assumed only for the minimum period of time required to transfer the gases to the gas decay tank" is from page 15.7-8 of the Unit 2 UFSAR. This minimum time period is reflected in the tank inventory available for release presented in Table 15.7.4.1-2 of the UFSAR. The actual value for this time delay is not specified in the UFSAR.

NRC Question 13.b: §2.9.3 states, the WGDT noble gas isotopic inventory specified in UFSAR Table 15.7.4.1-2 is scaled up by a factor of 24.84 to satisfy the TS 3.11.2.6 limit of 285,000 curies of noble gases (considered as Xenon (Xe-133)). Explain the basis for the value of 24.84. Noble gases other than Xe-133 are considered in Table 15.7.4-2. Why is Xe-133 the only noble gas considered when this adjustment is made?

FPL Response to NRC Question 13.b: UFSAR Table 15.7.4.1-2 specifies a noble gas inventory that is significantly lower than the inventory allowed by the Unit 2 Technical Specifications. In order to develop a tank inventory that meets the limit allowed by Technical Specifications, it was assumed that the relative amounts of the different noble gases would remain the same. Therefore, all of the noble gases were scaled up by the same factor (24.84) to produce a total tank inventory equivalent to 285,000 curies of Xe-133. This is similar to the process used to scale up the primary coolant iodine inventories to match the Technical Specification limit of 1.0 pCi/gm Dose Equivalent I-131.

NRC Question 13.c: For the gaseous and waste system failure events, the licensee proposes to use the criterion of 'well within 10 CFR 100." The staff did not address these two events in RG 1.183 since these events are not likely to result in core damage. Therefore, no AST-specific dose criteria were provided. Nonetheless, the staff notes that the Standard Review Plan Sections 15.7.1, 15.7.2, and 15.7.4 impose acceptance criteria from Branch Technical Position 11-5. These in turn derive from 10 CFR Part 20 rather than Part 100. The staffs original safety analysis report based its acceptance criteria of a "small fraction of the guidelines." Please provide a specific reference to a document that indicates that the staff accepted the proposed criteria as part of the licensee's licensing basis. Please briefly describe the basis of the St. Lucie Offsite Dose Calculation Manual controls that limit the content of these tanks. Please explain any significant differences between these basis and the acceptance criteria you are proposing in this LAR.

FPL Response to NRC Question 13.c: The St. Lucie Unit 1 UFSAR classifies the WGDT rupture event as a 'Class 3" event. Section 15.1.1 of the Unit 1 UFSAR defines a "Class 3" event as:

"Class 3 accidents are of very low probability, postulated in evaluating the design and performance of the plant and the acceptability of the site. These accidents may require operation of the engineered safety features, and the conservatively calculated off-site exposures may be significant but less than the limits of 10 CFR Part 100. Class 3 accidents may include those which do not involve the reactor or reactor coolant system but do release radioactivity to the environment. Typical accidents of this kind are the fuel handling and waste gas accidents."

Therefore, based on the criteria currently listed in the Unit 1 UFSAR, the dose limits for the fuel handling accident were used for the St. Lucie Unit 1 WGDT accident.

St. Lucie Unit 2 UFSAR Table 15.0-2 classifies the WGDT rupture event as a "Limiting Fault-2" event.

Section 15.0.1.3 of the Unit 2 UFSAR gives the following definition:

St. Lucie Units 1 and 2 L-2004-203 Docket Nos 50-335 and 50-389 Attachment 1 Page 26 of 36 "A Limiting Fault - 2 event has a very low probability of occurring in the lifetime for a particular plant."

St. Lucie Unit 2 UFSAR Table 15.0-4 states that the acceptance guidelines for "Limiting Fault-2" events is "Well within 10CFR100".

Section 15.7.4 of the Unit 2 UFSAR states that the WGDT failure and fuel handling accident events are both limiting fault-2 events. Thus, the dose limits for the fuel handling accident were applied to the WGDT failure event. It is also noted that the latest proposed revision to BTP 11-5 would endorse the "small fraction of the 10 CFR Part 100 guidelines" as the criteria for this event.

The St. Lucie ODCM ensures that the dose from effluents, at any time, at and beyond the site boundary, will be within the dose limits of 10 CFR 20. These releases do not include accident conditions. Technical Specification 3.11.2.6 (both units) limits the WGDT curie content. Compliance with this Technical Specification is ensured via other Chemistry Department procedures.

NRC Question 14: In regard to the assumed control room envelope unfiltered inleakage, different values were assumed in different accident analyses. For example, in the LOCA analysis, the assirned inleakage for Unit 2 is 540 cfm and 1000 cfm for the SGTR. Explain why different values were used and what value will be used for the how the design basis inleakage is defined.

FPL Response to NRC Question 14: The design basis control room envelope unfiltered inleakage for each unit will be the smallest value reported for that unit. For Unit 1 the value is 580 cfm (based on bounding LOCA and MSLB results) and for Unit 2 the value is 540 cfm (based on bounding LOCA and MSLB results). Other analyses conservatively used higher control room envelope unfiltered inleakage values.

NRC Question 15: Control room ventilation filter efficiencies that are applied to the filtered makeup and recirculation flows are stated as:

a. 99 percent for particulate, elemental iodine and organic iodine for Unit 1,

b. 99 percent for particulate, and 97.5 percent for elemental and organic iodine for Unit 2 UFSAR for Unit 1,§15.4.1.8 states the values are currently 99 percent for particulate, and 95 percent for elemental and organic iodine for Unit 1. UFSAR for Unit 2, Table 15.6.6-11 states the values are currently 99 percent for particulate, elemental iodine and organic iodine for Unit 2 Since the assumed 99 percent efficiencies for the Unit 1, charcoal absorbers appear to be in conflict with RG 1.52 please justify the assumed Unit I values. Please explain why the elemental and organic efficiencies are 97.5 percent for elemental and organic for Unit 2.

FPL Response to NRC Question 15: The St. Lucie Unit 1 and Unit 2 UFSAR values for control room ventilation filter efficiencies were not used in the AST analyses. The UFSAR values reflect efficiencies assumed in past analyses. Upon NRC approval of the Unit 1 and Unit 2 LARs, the subject UFSAR information will be obsolete and will be revised or removed as part of the normal UFSAR update process. The Unit 1 and Unit 2 control room ventilation filter efficiencies are specified in the Technical Specifications for the two units.

St. Lucie Units 1 and 2 L-2004-203 Docket Nos 50-335 and 50-389 Attachment 1 Page 27 of 36 The Unit 1 filter efficiencies (from TS 4.7.7) are:

Aerosol 99%

Elemental 97.5%

Organic 97.5%

The Unit 2 filter efficiencies (from TS 4.7.7) are:

Aerosol 99.95% (99% used in the analysis)

Elemental 99.825% (99% used in the analysis)

Organic 99.825% (99% used in the analysis)

Thus, the control room ventilation filter efficiencies used for the Unit 2 dose calculations are slightly more conservative than the efficiencies specified in the Unit 2 Technical Specifications.

NRC Question 16: For the spent fuel cask drop and fuel handling accidents analyses are provided for two different DFs. Consistent with RG 1.183, please confirm that the amendment requests to change the design basis DFs for these accidents to an overall decontamination factor of 200.

FPL Response to NRC Question 16: RG 1.183 specifies two inconsistent sets of iodine decontamination factors; therefore, the FHA was performed with both sets of iodine DFs. The most conservative of the FHA cases (which corresponds to an overall iodine DF of 200) will constitute the design basis for this event.

NRC Question 17: In order to complete its evaluation, the staff needs to review the general assumptions and calculations used by the licensee to prove that the containment sump pH will be maintained above 7 throughout the duration of the accident. Please describe the procedure utilized, including sample calculations, for calculating this pH of the containment sump water during the 30 day period after a LOCA. The calculations should include the chemicals used forpH control: NaOH in Unit 1 and tn-sodium phosphate (TSP) in Unit 2.

FPL Response to NRC Question 17:

St. Lucie Unit I A manual calculation was performed to determine the minimum possible sump pH at the earliest recirculation time of 20 minutes, at one hour, and at 30 days post-LOCA. The calculation uses the boron concentrations and volumes for the Refueling Water Storage Tank (RWST), Safety Injection Tanks (SITs), and Reactor Coolant System (RCS) as well as the sodium hydroxide (NaOH) tank volume and concentrations. The calculation determines the hydrochloric acid (HCI) and nitric acid (HNO 3 ) formation due to irradiation by methods reported in NUREG/CR-5950. Hydriotic acid (HI) is not considered in the calculation because an analysis shows its effect to be less than 0.01 pH units for all times considered. In addition, the analysis conservatively does not consider the addition of base forming components such as cesium hydroxide, which would increase pH. The inputs used to determine the pH values are listed in the table below.

St. Lucie Units 1 and 2 L-2004-203 Docket Nos 50-335 and 50-389 Attachment 1 Page 28 of 36 Input Description Value RWST Maximum Volume (mass calculated at 473585 gal minimum temperature of 40 OF)

Maximum RWST Boron Concentration 2450 ppm SIT Maximum Volume (T = 120 OF) -4 SIT 1170 ft3/tank tanks Maximum SIT Boron Concentration 2620 ppm RCS Maximum Volume (T = 571.3 IF, P 108f 2250 psia) 10580 ft3 Maximum RCS Boron Concentration 2700 ppm NaOH Minimum Tank Volume 4010 gal Minimum NaOH Concentration Density 1291.96 kg/ma Minimum NaOH Concentration 28.5 wt%

Mass of electrical cable insulation (bounding) 50000 Ibm Post-LOCA 30 day Integrated Radiation Dose 1.47E+8 rad in Containment Air (Beta & Gamma)

Post-LOCA 30 day Integrated Radiation Dose 4.68E+7 rad in Containment Sump (Beta & Gamma) I _I Using the inputs, the maximum amounts of boric acid, hydrochloric acid, and nitric acid in the sump were determined at 20 minutes, 1 hour1.157407e-5 days <br />2.777778e-4 hours <br />1.653439e-6 weeks <br />3.805e-7 months <br />, and 30 days. The minimum amount of sodium hydroxide was also determined at those same time periods. The strong acids (HCI and HNO3) are assumed to fully dissociate in the sump water and neutralize some of the sodium hydroxide. The sump pH is determined using the boric acid and remaining sodium hydroxide concentrations at each time period.

The minimum sump pH expected at 20 minutes, one hour, and 30 days post-LOCA are 6.98, 7.48, and 8.18, respectively for St. Lucie Unit 1.

St. Lucie Unit 2 A manual calculation was performed to determine the minimum possible sump pH at the earliest recirculation time of 20 minutes, at one hour, and at 30 days post-LOCA. The calculation uses the boron concentrations and volumes for the Refueling Water Storage Tank (RWST), Safety Injection Tanks (SITs), and Reactor Coolant System (RCS) as well as the trisodium phosphate dodecahydrate (TSP; Na3PO4 .12H 20) mass. The effect of the hydrazine (a weak base) from the Iodine Removal System (IRS) on the sump pH is conservatively ignored. The calculation determines the hydrochloric acid (HCI) and nitric acid (HNO3) formation due to irradiation by methods reported in NUREG/CR-5950. Hydriotic acid (HI) is not considered in the calculation because an analysis shows its effect to be less than 0.01 pH units for all times considered. In addition, the analysis conservatively does not consider the addition of base forming components such as cesium hydroxide, which would increase pH. The inputs used to determine the pH values are listed in the table below.

St. Lucie Units 1 and 2 L-2004-203 Docket Nos 50-335 and 50-389 Attachment 1 Page 29 of 36 Input Description Value RWST Maximum Volume (mass calculated at 478055 gal minimum temperature of 55 'F)

Maximum RWST Boron Concentration 2100 ppm SIT Maximum Volume (T = 120 OF) - 4 SIT 1556 ft3 tank tanks Maximum SIT Boron Concentration 2100 ppm RCS Maximum Volume (T = 574 IF, P = 2250 10506 ft3 psia)

Maximum RCS Boron Concentration 2440 ppm TSP mass 9700 Ibm TSP dissolved at 20 minutes 1/3 Time at which TSP is fully dissolved 3 hours3.472222e-5 days <br />8.333333e-4 hours <br />4.960317e-6 weeks <br />1.1415e-6 months <br /> Mass of electrical cable insulation (bounding) 50000 Ibm Post-LOCA 30 day Integrated Radiation Dose 1.43E+8 rad in Containment Air (Beta & Gamma)

Post-LOCA 30 day Integrated Radiation Dose 4.18E+7 rad in Containment Sump (Beta & Gamma) ._ _ _

Using the inputs, the maximum amounts of boric acid, hydrochloric acid, and nitric acid in the sump were determined at 20 minutes, 1 hour1.157407e-5 days <br />2.777778e-4 hours <br />1.653439e-6 weeks <br />3.805e-7 months <br />, and 30 days. The amount of TSP was also determined at.

these same time periods. The strong acids (HCI and HNO3) are assumed to fully dissociate in the sump water and neutralize some of the TSP. It is very conservatively assumed that one mole of TSP is completely neutralized by one mole of acid. This very conservative assumption has been previously accepted by the NRC in the reference below. The sump pH is determined using the boric acid and remaining TSP concentrations at each time period.

The minimum sump pH expected at 20 minutes, one hour, and 30 days post-LOCA are 6.93, 7.10, and 7.23, respectively for St. Lucie Unit 2.

Reference:

Enclosure 2, "Safety Evaluation by the Office of Nuclear Reactor Regulation Related to Amendment No. 201 to Facility Operating License No. DPR-40, Omaha Public Power District, Fort Calhoun Station, Unit No. 1, Docket No. 50-285," of Letter from A.B. Wang (NRC) to S.K. Gambhir (OPPD), "Fort Calhoun Station, Unit No. 1, Issuance of Amendment (TAC No. MB1221)", December 5,2001.

St. Lucie Units 1 and 2 L-2004-203 Docket Nos 50-335 and 50-389 Attachment 1 Page 30 of 36 NRC Question 18: Paragraph 1 of Section 1.6.3.1 of the ASTLicensing Technical Report for St.

Lucie Units I and 2 (Report No. NAI-1101-043, Revision 2 and Report No. NAI-1101-044, Revision 1) states that during normal control room ventilation system operation, fresh air is taken in through either the northern or the southern outside air intakes by remote manual opening of the redundant motor operated isolation valves. In contrast, Paragraph 3 of Section 1.6.3.3 of the same report states that both of these control room ventilation intakes remain open during normal operation and the control room ventilation system draws outside air through both of the vents in parallel. Please clarify whether both outside air intakes are always open during normal operation and whether the flow rates through each air intake are always equal.

Likewise, Paragraph 3 of Section 1.6.3.3 of Report No. NAI-1101-043 and Report No. NAI-1101-044 states that the dispersion factors for air being drawn into the control room are the average of the dispersion factors for the two intake locations during normal control room ventilation system operation.

In contrast, Paragraph 6 of Section 1.8.1 of the same report implies that the dispersion factors for the unfavorable intake location are used during normal control room ventilation system operation. The former assumption would be valid only if the flow rates through each intake are always equal during normal control room ventilation system operation whereas the latter assumption would be appropriate if the flow rates through each intake are not always equal. Please clarify the dispersion factors used in the dose analyses during normal control room ventilation system operation prior to control room isolation.

FPL Response to NRC Question 18: For both St. Lucie units, the normal mode of operation forthe control room ventilation system is for makeup air to be drawn from both the north and south outside air intakes in parallel, with the isolation valves for the north and south air intakes fully opened.

Therefore, flow is balanced between the two intakes and the statement in Paragraph 1.6.3.3 of the referenced AST Licensing Technical Reports is the correct statement.

The NRC is correct in that the wording in Section 1.6.3.3 is confusing. The intent of the third sentence of the third paragraph of Section 1.6.3.3 was to point out that the flows into each control room intake were balanced and that an average dispersion factor value would be acceptable for use. The following wording would be more appropriate for the third sentence in the third paragraph of Section 1.6.3.3:

"In this configuration, an acceptable value for the dispersion factor for air being drawn into the control room would be the average of the dispersion factors for the two intake locations; however, the dispersion factor for the worst intake location is conservatively used in the analyses."

Even though the flows in the two control room intakes are balanced, the dispersion factors for the worst control room intake are conservatively used in the analysis prior to isolation. Section 1.8.1 and Table 1.8.1-3 correctly indicate the dispersion factors used in the analyses.

St. Lucie Units 1 and 2 L-2004-203 Docket Nos 50-335 and 50-389 Attachment 1 Page 31 of 36 NRC Question 19: The control room operators have the ability to determine which air intake has the least amount of radiation by observing radiation monitors located in each of the two outside air intake ducts. After the initial control room isolation period, operators are assumed to have selectively open the ventilation system intake location with the lower radioactive concentration in order to maintain positive pressure and air quality in the Control Room (CR). This un-isolation of the control room is assumed to occur 90 minutes from the start of the accident and continue throughout the rest of the 30-day duration of the event. It is possible that wind shifts and changing release rates from multiple release pathways throughout the 30-day duration of the event could change which air intake has the lower radioactive concentration. Please explain how the operators will be able to continuously observe the radiation monitor levels at each intake throughout the 30-day event period to ensure that the least contaminated intake is always being used to pressurize the control room.

FPL Response to NRC Question 19: Section 3.3.2.3 of Regulatory Guide 1.194 states that after determining the X/Q value for the limiting and favorable intakes that, 'The X/Q value for the limiting intake should be used for the time interval prior to intake isolation. This X/Q value may be reduced by a factor of 2 to account for dilution by the flow from the other intake (see Equation 6a). The X/Q values for the favorable intake are used for the subsequent time intervals." The method employed of using the favorable intake X/Q values after CR un-isolation is directly from the guidance provided by Regulatory Guide 1.194.

St. Lucie plant procedures currently do not require operators to periodically monitor the outside air intake radiation levels after the initial outside air intake flow path selection is made. FPL commits to revising plant procedures to identify the need for operators to be aware of changing meteorological conditions and that such changes may affect which outside air intake path provides the lowest radiation levels.

NRC Question 20: Table 1.8.1-2 of the AST Licensing Technical Report for St. Lucie Units I and 2 (Report No. NAI-1101-043, Revision 2 and Report No. NAI-1101-044, Revision 1)presents the atmospheric dispersion factors used for the various accident scenarios. Since the two CR intakes are not in the same 90 degree window for plant vent releases, additional dilution credit for plant vent releases can be taken under certain circumstances. For example, the XIQ value presented in Table 1.8.1-2 for release-receptor pair "A" (plant vent release to the north CR intake) includes a factor of two reduction to account for dilution by the flow from the "clean" intake during normal control room ventilation system operation. Likewise, the XlQ values presented in Table 1.8.1-2 for release-receptor pair "B" (plant vent release to the south CR intake) includes a factor of four reduction to account for the expectation that the operators will make the proper intake selection by opening the outside air intake with the least amount of radiation after initiation of filtered air makeup. However, it is not appropriate to take either of these two dilution credits for unfiltered inleakage. Consequently, please confirm that the X/Q values used to model unfiltered inleakage for plant vent releases prior to CR isolation and after initiation of filtered air makeup did not include the dilution credits discussed above.

Also note that the factor of two reduction to account for dilution by the flow from the "clean" intake during normal control room ventilation system operation is only valid if the flow rates through each intake are always equal during normal control room ventilation system operation. If this is not the case, this additional dilution credit forplant vent releases is not appropriate.

FPL Response to NRC Question 20: The unfiltered inleakage is assumed to occur at the open intake when the CR is not isolated. For Unit 1, testing demonstrated that a significant portion of the

St. Lucie Units 1 and 2 L-2004-203 Docket Nos 50-335 and 50-389 Attachment 1 Page 32 of 36 control room unfiltered inleakage comes from the cable spreading room. The air for the cable spreading room is supplied from an adjacent location to the south normal intake. The atmospheric dispersion factors for the south normal control room intake are lower than the other possible receptor points. Unit 2 testing demonstrated that a large portion of the unfiltered inleakage emanates from the B switchgear room. The switchgear room is fed from fans that take suction in the vicinity of the south control room intake. Therefore, assigning the unfiltered inleakage to the open intake is conservative or, at worst, accurate. As such, the X/Q value for the unfiltered inleakage following initiation of filtered air makeup does account for the factor of 4 reduction from the base X/Q value. This is viewed as appropriate since the unfiltered inleakage occurs at the open intake based on the reasoning above.

As discussed in response to NRC Question 18 above, the flow rates through the control room intakes are balanced during normal operation.

NRC Question 21: Paragraph 1 of Section 2.2.4 of the AST Licensing Technical Report for St. Lucie Units 1 and 2 (Report No. NAI-1 101-043, Revision 2 and Report No. NAI-1 101-044, Revision 1) states that the atmospheric dispersion factors used for the fuel handling accident were based on the location of the containment maintenance hatch, yet Paragraph 2 of Section 2.2.1 of the same report states that the dispersion factors from the fuel handling building were slightly greater that the dispersion factors from the containment maintenance hatch. Please confirm the release pathway for the set of X/Q values used to model the fuel handling accident. Also provide a copy of the ARCON96 computer code outputs used to produce the X/Q values for releases from the containment maintenance hatch.

FPL Response to NRC Question 21: The X/Q values for a release from the closest point on the fuel handling building were used to model the fuel handling accident while the control room was not in isolation mode for Unit 2 and before, during, and after isolation mode for Unit 1. These X/Q values are more conservative than for the release from the containment maintenance hatch (which are not presented because they were not used in the dose analyses).

The description in Paragraph 1 of Section 2.2.4 of the AST Licensing Technical Report for St. Lucie Units 1 and 2 (Report No. NA1101-043, Revision 2 and Report No. NAt-1101-044, Revision 1) is confusing. The intent was to point out that the release from the containment maintenance hatch was checked and determined to be bounded by the release from the fuel handling building. As seen in Tables 1.8.1-2 and 1.8.1-3 of the AST LTR for St. Lucie Unit 2 (NAI-1101-044, Revision 1) the release is assumed to be from the plant stack during the time while the control room is isolated. The plant stack is taken as the release point during this time period because it provides the limiting X/Q value during the isolation period for the possible release points of the containment maintenance hatch, the fuel handling building ventilation, or the fuel handling building closest point. The Unit 1 fuel handling accident analysis does not credit the fuel handling building ventilation system (which could exhaust from the plant stack). As such the release point before, during, and after CR isolation is from the fuel handling building's closest point as seen in Tables 1.8.1-2 and 1.8.1-3 of the AST LTR for St. Lucie Unit 1 (NAI-1101-043, Revision 2).

St. Lucie Units 1 and 2 L-2004-203 Docket Nos 50-335 and 50-389 Attachment 1 Page 33 of 36 NRC Question 22: Section 2.1.1.2 of the St. Lucie Units I and 2 UFSAR states that the radii of the Exclusion Area Boundary (EAB) and Low Population Zone (LPZ) are 0.97 mile (1,561 meters) and 1 mile (1,609 meters), respectively, from the center of the St. Lucie plant. However, the EAB and LPZ downwind distances provided as input to the PAVAN atmospheric dispersion model were 1,537 meters and 1,585 meters for Unit 1 and 1,442 meters and 1,490 meters for Unit 2, respectively.

Please provide the basis for EAB and LPZ radii used as input to the PA VAN computer code.

FPL Response to NRC Question 22: Figure 2.1-3 of the St. Lucie Units 1 and 2 UFSARs as called out in Section 2.1.1.2 portrays that the center of the EAB and LPZ are taken at the center of the Unit 1 containment. For the Unit 1 EAB and LPZ distances the radius of the containment was subtracted from the 0.97 and 1 mile values. This radius is approximately 23.47 m, therefore the nominal EAB and LPZ distances of 1,561 m and 1,609 m distances are conservatively reduced by 24 m to 1,537 m and 1,585 m, respectively.

The distances to the EAB and LPZ for Unit 2 takes into account the offset of Unit 2 from the Unit 1 containment center and the radius of the Unit 2 containment. The Unit 2 center is offset from the Unit 1 center by approximately 95.40 m and the radius is approximately 23.47 m. The nominal EAB and LPZ distances of 1,561 m and 1,609 m distances are conservatively reduced by 119 m to 1,442 m and 1,490 m, respectively. These reduced distances are conservatively assumed in all directions.

NRC Question 23: The dose analysis assumes contaminated outside air enters the control room unfiltered via various leakage paths during the entire course of the event. At the beginning of the event, an initial dispersion factor applicable to the least favorable control room ventilation system intake location is assigned to this unfiltered inleakage. Following control room isolation, when both control room air intakes are closed, a dispersion factor corresponding to a location that is at the midpoint of both of the control room air intake locations is applied. At the time when the operator unisolates the control room by opening the favorable air intake, the dispersion factor for the more favorable control room intake location is used.

Unfiltered inleakage is the result of unintended infiltration through pathways such as doorways, envelope penetrations, and leakage in ventilation system components. For example, Section 6.4.1.3.1 of the St. Lucie Unit I UFSAR presents a control room leakage calculation which estimates that 89 percent of the control room leakage is from gasketed doors and Section 6.4.2.3 of the St.

Lucie Unit 2 UFSAR presents a control room leakage calculation which estimates that 90 percent of the control room leakage is from electrical openings and airtight personnel access doors (UFSAR Table 6.4-1). It is not clear that this unfiltered inleakage pathway will necessarily change as a function of either the control room isolation mode or the air intakes used to pressurize the control room.

Consequently, please explain why unfiltered inleakage is not modeled using the most limiting dispersion factors associated with the bounding potential unfiltered inleakage pathway for the duration of the event.

FPL Response to NRC Question 23: Unit 1 testing demonstrated that a significant portion of the control room unfiltered inleakage comes from the cable spreading room. The air for the cable spreading room is supplied from an adjacent location to the south normal intake. Unit 2 testing demonstrated that a large portion of the control room unfiltered inleakage comes from the B switchgear room. This room is fed from fans that take suction in the vicinity of the south control room intake. For both units, the atmospheric dispersion factors for the south control room intake are lower than the other possible receptor points. Therefore, assigning the unfiltered inleakage to the open intake is conservative, or at worst accurate.

St. Lucie Units 1 and 2 L-2004-203 Docket Nos 50-335 and 50-389 Attachment 1 Page 34 of 36 Prior to intake isolation, the unfiltered inleakage is assigned to the north receptor X/Q value. This is always higher than the south receptor, and therefore conservative. During intake isolation the unfiltered inleakage is assigned to a receptor at the midpoint between the intake locations. These XIQ values are always higher than those at the south intake, and are therefore conservative. After isolation, the south intake location is used as the receptor for the unfiltered inleakage. As the paragraph above states, this is appropriate, as it is the genesis point for a significant portion of the unfiltered inleakage into the control room.

NRC Questions for Unit 1 Only NRC Question 1: The meteorological data processing description provided with the ARCON96 meteorological data input file states that the delta-temperature data used in determining stability class were in units of 0FI50m. However, the St. Lucie Unit 1 UFSAR Section 2.3.3 says that differential temperature is measured between 57.9 meters and 10 meters, implying that the delta-temperature data are recorded in units of 0F147.9 meters. If the delta-temperature data used to determine stability class were in units of 0F147.9 meters instead of 0FI50m, please determine the impact on the classification of stability and the resulting ARCON96 and PAVANXIQ values.

FPL Response to NRC Question 1: The differential temperature provided in the raw meteorological data by the meteorological tower is in corrected units of OF/50 meters. Although the temperatures may be taken on the tower at the above listed heights, the meteorological data is reported by the meteorological tower system in corrected units of OF/50 meters. This delta-temperature data is used to determine the atmospheric stability class for each hour.

NRC Question 2: LAR 1 includes an evaluation for the radiological consequences for inadvertent opening of a SG relief orsafety valve. UFSAR for Unit 1, §15.2.11.3.2 states that the radiological releases due to the opening of a power operated atmospheric dump valve are bounded by the stuck open main steam safety valve event. Given this, why was this accident included in LAR 1 rather than the stuck open MSSV event.

FPL Response to NRC Question 2: Per UFSAR Section 15.2.11.3.2, the stuck open MSSV event bounds the opening of a power operated atmospheric dump valve event for the radiological releases.

The accident included in the AST dose analysis for Unit 1, in Section 2.7, is the same stuck open MSSV event, consistent with the UFSAR Section 15.2.11.3.2. The wording Inadvertent Opening of a MSSV" and the "Stuck Open MSSV" have been used interchangeably in the UFSAR and in the AST submittal of L-2003-224.

Note that due to the use of new X/Q's, the worst X/Q from an MSSV may no longer bound the worst X/Q from an ADV. When the control room ventilation system is operating in normal mode and when the control room is isolated, the X/Q from the closest ADV is most limiting. When the control room is manually unisolated, the X/Q from the closest MSSV is most limiting. For the new AST analysis, a composite and bounding set of X/Qs was used to produce a dose calculation that bounds a release from either an ADV or an MSSV.

St. Lucie Units 1 and 2 L-2004-203 Docket Nos 50-335 and 50-389 Attachment 1 Page 35 of 36 NRC Questions for Unit 2 Only NRC Question 1: The St. Lucie Unit 2 UFSAR Section 2.3.3.4 states that differential ambient air temperature is available between the 33.5-meter and 10-meter levels and between the 57.9-meter and 10-meter levels on the onsite meteorological tower. Please specify which of these two delta-temperature measurements were used to derive the atmospheric stability classification used as input to the ARCON96 and PA VAN computer codes.

FPL Response to NRC Question 1: The differential temperature provided in the raw meteorological data by the meteorological tower is in corrected units of OF/50 meters. Although the temperatures may be taken on the tower at the above listed heights, the meteorological data is reported by the meteorological tower system in corrected units of OF/50 meters. This delta-temperature data is used to determine the atmospheric stability class for each hour.

NRC Question 2: Please justify using the release-recejptor pair UN" (stack/plant vent release to midpoint between intakes) XIQ value of 3.79E-3 sec/m presented in Table 1.8.1-2 ofAST Licensing Technical Report for St. Lucie Unit 2 (Report No. NAI- 101-044, Revision 1) to model unfiltered inleakage to the CR during CR isolation for the fuel handling accident.

FPL Response to NRC Question 2: Using the stack/plant vent as the release point for the unfiltered inleakage during CR isolation for the fuel handling accident is conservative. The release from the plant stack yields a higher base X/Q value than a release from the fuel handling building. However, based on the location of the plant stack versus the location of the fuel handling building, credit may be taken for dilution for releases from the stack to the control room intakes. This dilution credit may not be taken for the release from the fuel handling building to the CR intakes because they lie in the same wind direction window for the fuel handling building release. Consequently, during control room isolation when dilution credit may not be applied the release from the stack is limiting. During the other time periods (before and after isolation), when dilution credit may be applied for releases from the stack, the fuel handling building releases are limiting.

NRC Question 3: UFSAR for Unit 2, §6.5.2, Containment Spray System/lodine Removal System (IRS), states the purpose of the IRS is to achieve a containment sump pH between 7.0 and 7.5 after all the spray chemicals mix with the available waterinventory. UFSAR for Unit 2, Figure 6.5-8 shows that the minimum pH remains at approximately 7.0 pH. UFSAR for Unit 2, §15.6.6.4.1.6 states that:

Calculations ofpotential doses to control room personnel considered the possibility of iodine reevolution. The justification for assuming that reevolution of iodine takes place is based on 1) the low long-term sump pH of 7 and, 2) the claim that hydrazine oxidizes quickly when exposed to air and, therefore, is not available for iodine retention following depletion ofits inventory. Iodine reevolution would increase the quantity of airborne iodine available for release to the environment following the termination of hydrazine injection. This, in effect, reduces the overall effectiveness of the IRS and would provide a conservative evaluation of doses to control room personnel. The possibility of iodine reevolution could be delayed through a long hydrazine injection period. Increasing the hydrazine injection time could be accomplished by manually shutting down one hydrazine injection pump one hour after the start of a LOCA. This manual action would require an operator to leave the control room and access one of the motor control centers at the

St. Lucie Units 1 and 2 L-2004-203 Docket Nos 50-335 and 50-389 Attachment 1 Page 36 of 36 electrical equipment room. The acceptability of this operator action was based on an evaluation of his post LOCA 30-day exposure, taking into consideration time spent outside the control room to assess compliance with GDC-19 of Appendix A to 10 CFR 50.

Regulatory Position 3.5, Appendix A of RG 1.183, states that analyses should consider iodine reevolution if the suppression pool liquid pH is not maintained greater than 7. Given the current licensing bases, justify why reevolution and the possibility of manual operator actions outside the control room are not included in the proposed analyses.

FPL Response to NRC Question 3: The existing UFSAR information referenced by the NRC staff is being revised subsequent to approval of AST implementation. Hydrazine is no longer credited for iodine removal or pH control in the analyses supporting AST. As per the response to NRC Questions 7.b and 17, the containment sump pH for Unit 2 is 6.93 at the most conservative time of recirculation and 7.1 at one hour. Figure 3.1 of NUREG/CR-5950 indicates that at a pH of 6.93, no iodine re-evolution would occur. Considering the actual St. Lucie Unit 2 inputs at the time of recirculation, the fraction of iodine that may re-evolve is less than 0.000003. As discussed in the response to NRC Question 7.b, numbers much larger than this value are already assumed.

Additional NRC Question Received via e-mail dated 812/04 from Jose Arroyo (NRC)

NRC E-mailed Question: NUREG-0800, Standard Review Plan Section 6.5.2, "Containment Spray as a Fission Product Cleanup System", states that the removal of iodine from the containment is achieved during the injection and recirculation phases. In your submittal for both units, only the elemental and particulate iodine removal coefficients during injection are discussed. Please discuss the technical basis for only calculating the elemental and particulate iodine removal coefficients during injection.

FPL Response to NRC E-mailed Question: Consistent with prior approved submittals and in order to be conservative, the lowest containment spray volumetric flow rate is used to determine the spray removal coefficients for all time periods. For example, the containment spray volumetric flow rate for St. Lucie Unit 2 is 3560 gpm during recirculation and only 2650 gpm during injection. Therefore, the injection volumetric flow rate provides a conservative spray removal coefficient and is used for all time periods (injection and recirculation) during which spray removal is credited.

St. Lucie Units 1 and 2 L-2004-203 Docket Nos 50-335 and 50-389 Attachment 2 Page 1 of 8 Unit 1 LOCA Models Summary NAI-1101-033, Rev. 1

St. Lucie Units 1 and 2 L-2004-203 Docket Nos 50-335 and 50-389 Attachment 2 Page 2 of 8 The St. Lucie Unit 1 LOCA analyses consist of five RADTRAD-NAI models and the MicroShield models described in (and attached to) the response to the NRC's Request for Additional Information (RAI), question 7.h. The Control Room dose sums the contributions from the six models, while the offsite doses sum the contributions from the five RADTRAD-NAI models (excluding direct shine to the Control Room). The five RADTRAD-NAI plant specific input files (.psf) are included in this response to allow for comparison with the NRC's RADTRAD input files. The supporting nuclide inventory (.nif),

release fraction timing (.rft) and dose conversion factor (.dcf) files are also included in this response.

In general, the input data required to produce the included RADTRAD-NAI LOCA psf files is from NAl-1101-043, Revision 1, "AST Licensing Technical Report for St. Lucie Unit 1." Additional computations are provided in this description to clarify the development of the psf inputs. It should also be noted that the included ECCS leakage psf files account for 10% of the total iodine in the leaked fluid becoming airborne as discussed in prior conference calls and as documented in the response to NRC question 7.b.

Containment Purge Model: SL1-LOCA-Cont-Purge-cr580ui.psf The containment purge dose contribution results from assuming that containment purge is operating at 42,000 cfm at the time of the event. Containment purge is isolated at 30 seconds based on high containment pressure; therefore, only RCS activity (sl1rcsact.nif) is released via purge. The RCS activities in the nuclide inventory file are in units of microCuries per gram of coolant. The power in the plant specific input file is used to convert the .nif activities from microCuries per gram to total Curie inventory as follows:

RCS mass in grams x conversion = 480,538 lbs x 453.6 gm /lb x 1.Oe-06 Ci /pCi RCS mass in grams x conversion = 218 gm Ci /pCi Since containment sprays are not initiated until after containment purge is isolated and are not credited (65 seconds for spray initiation versus 30 seconds for purge isolation), the containment is modeled as a single unsprayed volume of 2,506,000 ft3. The Control Room atmospheric dispersion factor is from the plant stack to the North Control Room intake and equals 0.00235 through the time of containment purge isolation. This value includes credit for dilution (factor of 2) based on both Control Room intakes being open with equal flow and not being in the same wind direction window. Also, see the response to NRC question 7.i regarding the insignificant dose contribution from this 30-second release and the insignificant impact on filter loading.

No further purging occurs during the LOCA.

Containment Leakage Bypassing the Shield Building Ventilation System Model: SL1-LOCA-Cont-leakage-Bypass-cr-580cfmn-ui-96.psf The containment leakage flow bypassing SBVS filtration includes all flow prior to drawdown (120 seconds) and 9.6% of all flow after drawdown. Due to the configuration of the plant and the leakage locations, 9.6% of the containment leakage prior to drawdown (0.837 cfm) is released unfiltered from the Auxiliary Building via the plant stack and 90.4% of the containment leakage prior to drawdown (7.868 cfm) is released unfiltered via the containment closest point. Note that as per the response to RAI question 7.i, an additional case was run with the entire containment leakage prior to drawdown

St. Lucie Units 1 and 2 L-2004-203 Docket Nos 50-335 and 50-389 Attachment 2 Page 3 of 8 released from the containment closest point with the result being changed in the ten thousandths place which would not be seen in the reported significant figures. After drawdown, 9.6% of the containment leakage is released unfiltered from the plant stack via the Auxiliary Building.

The containment leakage (0.5%/day for the first 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> and 0.25%/day for the remainder of the event) is assumed to occur from both the sprayed and unsprayed regions of containment.

Elemental iodine (2.89/hour removal rate) and aerosol/particulate (0.1/hour removal rate) natural deposition are only credited in unsprayed regions of containment (i.e., the sprayed containment volume prior to sprays starting only and the unsprayed containment volume). Note that elemental iodine natural deposition in the unsprayed region is conservatively reduced to 0 at the time the total elemental iodine decontamination factor in containment reaches 200 (2.065 hours7.523148e-4 days <br />0.0181 hours <br />1.074735e-4 weeks <br />2.47325e-5 months <br />).

Spray removal rates are as specified in Table 2.1-1 of NAI-1 101 -043, Revision 1 with elemental removal being reduced to 0/hour at 2.065 hours7.523148e-4 days <br />0.0181 hours <br />1.074735e-4 weeks <br />2.47325e-5 months <br /> when an elemental iodine decontamination factor of 200 is reached and particulate spray removal being reduced to 1 / 1 0 th at 2.507 hours0.00587 days <br />0.141 hours <br />8.382936e-4 weeks <br />1.929135e-4 months <br /> when a particulate decontamination factor of 50 is reached.

The elemental iodine and particulate spray removal rates and elemental iodine natural deposition removal rate are calculated in accordance with Standard Review Plan Section 6.5.2. The resulting elemental iodine spray removal rate value was significantly larger than the conservatively used limit of 20/hour. The following equations develop the base removal rates for these three mechanisms. The particulate/aerosol natural deposition removal rate of 0.1/hour is discussed in the response to RAI question 7.a.

Containment Spray Elemental Iodine Removal Rate X se= 6KgTF/VD Where:

Kg = gas phase mass transfer coefficeint = 16.4 cm/sec, Kg = 1,937 ftlhr T = time of drop fall = drop fall height / terminal velocity Drop fall height = 140 ft Drop terminal velocity = 9.23 ft /sec T = 140/9.23 = 15.17 sec = 4.2e-3 hr F = spray flow rate = 2700 gpm = 21,656 cu ft /hr V = containment volume = 2,506,000 cu ft D = mean drop diameter = 700 microns = 0.0023 ft 6 (1937 ft/hr) (4.2e-3 hr) (21656 cu ftlhr)

Xse = - - = 183.4 /hr (2506000 cu ft) (2.3e-3 ft)

Maximum removal initially set to 20 /hour.

St. Lucie Units 1 and 2 L-2004-203 Docket Nos 50-335 and 50-389 Attachment 2 Page 4 of 8 Containment Spray Particulate/Aerosol Removal Rate X p = 3hFE / 2VD where:

h = drop fall height = 140 ft F = spray flow rate = 2,700 gpm = 21,656 cu ft /hr EID = collection efficiency = 10 /m (3.05 /ft) initially; then 1 I m when DF=50 per SRP 6.5.2 V = Containment Volume = 2,506,000 cu ft 3(140 ft) (21656 ft3 / hr) xp= _ x 3.05 /ft = 5.53 /hr initially 2 (2506000 ft3)

Elemental Iodine Natural Deposition Removal Rate xe= Kw A/V where:

Kw = 4.9 m/hr per SRP 6.5.2 = 16.07 ft /hr A = wetted surface = 450,000 sq ft V = 2,506,000 cu ft X e = (16.07 ft/hr ) (450,000 sq ft) / 2,506,000 cu ft = 2.89 /hr The Control Room atmospheric dispersion factors are as follows:

Time Period Release to Receptor X/Q (hours) 0 to 0.0139 (50 Plant Stack to North CR Intake 0.00235*

seconds = time of CR isolation) 0.0139 to 1.5 (1.5 Plant Stack to the Midpoint between 0.00378 hours = time of the CR Intakes operator selection and opening of favorable intake) 1.5 to 2.0 Plant Stack to South CR Intake 0.000668**

2.0 to 8.0 Plant Stack to South CR Intake 0.000455**

8.0 to 24 Plant Stack to South CR Intake 0.00021 1**

24 to 96 Plant Stack to South CR Intake 0.000126**

96 to 720 Plant Stack to South CR Intake 9.25e-05**

• Includes dilution credit (factor of 2) due to South CR Intake being open with equal flow and not being located in the same wind direction window as the North CR Intake

• • Includes dilution credit (factor of 4) due to operator selection of favorable intake

St. Lucie Units 1 and 2 L-2004-203 Docket Nos 50-335 and 50-389 Attachment 2 Page 5 of 8 Containment Leakage Processed by the Shield Building Ventilation System Model: SL1-LOCA-Cont-leakage-SBVS-cr-580cfm-ui-96.psf The discussion of the containment leakage bypassing SBVS applies except for the leakage flows, the Control Room atmospheric dispersion factors and the filtration by the SBVS. The leakage flows equal 7.868 cfm prior to 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> and 3.933 cfm after 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> (when the containment leakage is reduced to half). Prior to drawdown (120 seconds), the 7.868 cfm are released unfiltered from the closest containment point and represent the 90.4% of the containment leakage previously discussed in the bypass model. After drawdown, the SBVS provides filtration at the Technical Specification values as discussed in the response to RAI question 7.1. The Control Room atmospheric dispersion factors are as follows:

Time Period Release to Receptor X/Q (hours) _

0 to 0.0139 (50 Containment Closest Point to North 0.0073 seconds = time of CR Intake (unfiltered)

CR isolation) 0.0139 to 0.0333 Containment Closest Point to the 0.00317 (120 seconds = Midpoint between the CR Intakes time of drawdown) (unfiltered) 0.0333 to 1.5 (1.5 Plant Stack to the Midpoint between 0.00378 hours = time of the CR Intakes operator selection and opening of favorable intake) 1.5 to 2.0 Plant Stack to South CR Intake 0.000668**

2.0 to 8.0 Plant Stack to South CR Intake 0.000455**

8.0 to 24 Plant Stack to South CR Intake 0.000211 **

24 to 96 Plant Stack to South CR Intake 0.000126**

96 to 720 Plant Stack to South CR Intake 9.25e-05**

• • Includes dilution credit (factor of 4) due to operator selection of favorable intake Direct ECCS Component Leakage to the Environment Model: sl1_10eccs-rai.psf With the exception of noble gases, all fission products released from the fuel to containment are assumed to be instantaneously and homogeneously mixed in the minimum containment sump water (57,000 ft.3). The radioiodine postulated for release to the environment is assumed to be 97%

elemental and 3% organic. The base ECCS leakage value of 2255 cc/hr is doubled to 4510 cc/hr, which equates to 0.0027 ft.3 /min. Ten percent of the total iodine activity in the leaked fluid is conservatively released to the ECCS area. This is done by reducing the 0.0027 ft.3/min doubled ECCS leakage by a factor of 10 to 0.00027 ft.3 /min, which is released to the ECCS area. The ECCS area filtration filters the release based on Technical Specification requirements.

The Control Room atmospheric dispersion factors are as follows:

St. Lucie Units 1 and 2 L-2004-203 Docket Nos 50-335 and 50-389 Attachment 2 Page 6 of 8 Time Period Release to Receptor X/Q (hours) 0 to 0.0139 (50 Auxiliary Building Exhaust to North 0.00485 seconds = time of CR Intake CR isolation).

0.0139 to 1.5 (1.5 Auxiliary Building Exhaust to the 0.00504 hours = time of Midpoint between the CR Intakes operator selection and opening of favorable intake) 1.5 to 2.0 Auxiliary Building Exhaust to South 0.00359 CR Intake 2.0 to 8.0 Auxiliary Building Exhaust to South 0.00294 CR Intake 8.0 to 24 Auxiliary Building Exhaust to South 0.00124 CR Intake 24 to 96 Auxiliary Building Exhaust to South 0.000884 CR Intake 96 to 720 Auxiliary Building Exhaust to South 0.000691 CR Intake RWT Backleakage Model: SL1-LOCA-RWST-LEAKAGE-cr-580cfm-df25-12adj-275-I.psf The RWT backleakage dose contribution is discussed in detail in the response to RAI question 7.b. It is conservative to use the RWT minimum volume at recirculation for determining releases from the RWT due to backleakage. For this minimum volume to occur, additional RWT liquid enters the containment sump prior to recirculation creating a containment sump liquid volume of 60,958 f.3 (which is greater than the sump volume used for ECCS, but produces a more conservative result for RWT backleakage based on reduced RWT inventory).

A 2 gpm (0.267 ft.3/min) leak path is modeled as a filtered pathway from the containment sump component to the RWT piping component. This is based upon the RG 1.183 guidance to double the maximum leak rate of 1 gpm. The backleakage is subcooled by the time it migrates back from the ECCS to the RWT. In accordance with RG 1.183 guidance all of the non-iodine particulate in the leakage is assumed to be retained in the sump water and not available for airborne release. This is modeled using the .rft file to eliminate the non-iodine particulate groups from the release.

Furthermore, since the backleakage is subcooled when it enters the tank and there is no boiling in the tank, it is assumed that all of the particulate iodine in the leakage is likewise retained in the liquid inventory. This is modeled by assigning a 100% efficiency filtration for the particulate in the leakage flow. A 0% efficiency will be assigned to the elemental and organic iodine. A value of 2.75% of the iodine particulate is assumed to be transformed into elemental iodine in the acidic solution of the RWT after the first hour (see response to RAI question 7.b). This inventory is accounted for by adjusting the elemental fraction specified in the chemical form of the original release from the fuel in the psf input file.

During the first hour, the 2 gpm leak path flow will be increased by a factor of 2.67 (= 7.35/ 2.75) to effectively increase the elemental iodine composition to 7.35%. Therefore, the flow is 0.713 ft.3/min

St. Lucie Units 1 and 2 L-2004-203 Docket Nos 50-335 and 50-389 Attachment 2 Page 7 of 8 for the first hour (after a 0.333 hour0.00385 days <br />0.0925 hours <br />5.505952e-4 weeks <br />1.267065e-4 months <br /> [20 minute] delay for start of recirculation) and 0.267 ft.3/min thereafter. During the initial hour when flows are elevated by a factor of 2.67 to model the increased elemental portion of the release, a filter efficiency of 62.5% will be applied to the organic component in order to compensate for the flow increase with respect to the organic portion of the release (i.e., [1-

.625]

• 2.67 = 1).

The liquid piping volume from the closest potential backleakage point to the RWST equals 500 ft3, which is modeled as a separate volume.

At the beginning of the recirculation phase a minimum of approximately 38,842 gallons of water are initially assumed to be in the RWT. This is based upon the minimum RWT inventory at RAS of 58,760 gallons minus a 7,345 gallon uncertainty = 51,415 gallons. The transfer volume of 12,573 gallons is also removed to produce a minimum volume of 38,842 gallons (5,192 ft3). During the course of the event the 2 gpm backleakage to the RWT increas es the liquid volume. A variable volume component in RADTRAD-NAI is used to model the RWT liquid to simulate the increasing liquid inventory.

Air/vapor is released to the environment from the RWT at a rate of 2 gpm (0.267 cu ftlmin) based on the air/vapor in the tank being displaced by the incoming backleakage flow. In addition, the RWT vent flow rate considers the tank venting produced by the gas expansion and contraction associated with the approximately 10F daily temperature variation assumed in the tank. The basis for the 10F daily temperature cycle is discussed in the response to RAI question 7.c. Based upon an ideal gas relationship, a 10F temperature change in a tank at 1000F would impose about a 1.8% expansion and contraction daily. Therefore, 2% of the RWT air volume is conservatively expelled from the tank daily based on temperature changes and associated expansion. The RWT air volume at various intervals during the 30 day event is used to compute the expelled gas release.

Based upon the actual total RWT tank volume of 525,000 gallons and the previously discussed minimum water inventory assumption of 38,842 gallons, the initial air space volume in the tank is 486,158 gallons. This volume is reduced at a rate of 2 gpm as the tank fills with water during the event. The following spreadsheet presents the time-dependent air volume and the tank air release based upon a 2%/day venting (2%/1440 min = 1.39e-5 x air volume / min ) due to daily heating and cooling expansion and contraction plus 2 gpm displacement. The "Actual Release" column is the expansion leak rate plus the displacement. The model is removing the RWT release volume from the liquid space instead of the gas space. Therefore, the volume of the release is reduced by a partition factor of 25 to account for the higher concentration of elemental iodine in the liquid relative to the concentration in the gas. The model's adjusted release from the tank equals the volume of the air calculated to be released divided by the partition coefficient of 25 to account for the lower iodine concentration of the air volume compared to the liquid volume. The spreadsheet developing the input to the model is presented below:

RWT Time-dependent Inventory & Release Spreadsheet Time Total Liquid PF Air Air Liquid Actual Adjusted Leakage Volume (12) Volume Volume Volume Release Release (hrs) (gal) (gal) (gal) cu ft cu ft cfm cfm 0 0 38842 25 486158 64990 5192 1.1696 0.0468 2 240 39082 25 485918 64958 5224 1.1692 0.0468 8 960 39802 25 485198 64861 5321 1.1679 0.0467 24 2880 41722 25 483278 64605 5577 1.1643 0.0466

St. Lucie Units I and 2 L-2004-203 Docket Nos 50-335 and 50-389 Attachment 2 Page 8 of 8 Time Total Liquid PF Air Air Liquid Actual Adjusted Leakage Volume (12) Volume Volume Volume Release Release (hrs) (gal) (gal) (gal) cu ft cu ft cfm cfm 48 5760 44602 25 480398 64220 5962 1.1589 0.0464 96 11520 50362 25 474638 63450 6732 1.1482 0.0459 150 18000 56842 25 468158 62583 7599 1.1362 0.0454 250 30000 68842 25 456158 60979 9203 1.1139 0.0446 350 42000 80842 25 444158 59375 10807 1.0917 0.0437 450 54000 92842 25 432158 57771 12411 1.0694 0.0428 550 66000 104842 25 420158 56167 14015 1.0471 0.0419 650 78000 116842 25 408158 54563 15619 1.0248 0.0410 7201 86400 125242 25 399758 53440 16742 1.0092 0.0404 The partition coefficient for elemental iodine in the RWr was derived from the following temperature dependent relationship provided by equations 14 and 15 in section 3.3 of NUREG/CR 5950, 'Iodine Evolution and pH Control":

PC(1 2) = (12) gas where:

Loglo PC(1 2) = 6.29 - {0.0149 (T)} where T is given in degrees K During the event, the RWT fluid temperature will not exceed 130 0F, which is conservatively used to determine the partition coefficient for the duration of the event.

The Control Room atmospheric dispersion factors are as follows:

Time Period Release to Receptor X/Q (hours) 0 to 0.0139 (50 RWT Vent to North CR Intake 0.00138 seconds = time of CR isolation) 0.0139 to 1.5 (1.5 RWT Vent to the Midpoint between 0.00133 hours = time of the CR Intakes operator selection and opening of favorable intake) 1.5 to 2.0 RWT Vent to South CR Intake 0.0011 2.0 to 8.0 RWT Vent to South CR Intake 0.00093 8.0 to 24 RWT Vent to South CR Intake 0.000396 24 to 96 RWT Vent to South CR Intake 0.000294 96 to 720 RWT Vent to South CR Intake 0.000228

St. Lucie Units 1 and 2 L-2004-203 Docket Nos 50-335 and 50-389 Attachment 3 Page 1 of 4 Unit 1 MSLB Models Summary NAI1101-034, Rev. 0

St. Lucie Units 1 and 2 L-2004-203 Docket Nos 50-335 and 50-389 Attachment 3 Page 2 of 4 The St. Lucie Unit 1 MSLB analyses include an evaluation of a break inside and outside of containment. The St.

Lucie Unit 1 MSLB analyses include fuel failures due to fuel centerline melt (FCM) or departure from nucleate boiling (DNB); therefore, no spiking cases are evaluated. The break outside of containment with 3.5% DNB is the most limiting case with respect to reported radiological consequences and is discussed in this model description. The St. Lucie Unit 1 MSLB analyses consist of eight RADTRAD-NAI models and the MicroShield models described in (and attached to) the response to the NRC's Request for Additional Information (RAI),

question 7.h. The Control Room dose sums the contributions from the nine models, while the offsite doses sum the contributions from the eight RADTRAD-NAI models (excluding direct shine to the Control Room). The eight RADTRAD-NAI plant specific input files (.psf) are included in this response to allow for comparison with the NRC's RADTRAD input files. The supporting nuclide inventory (.ni), release fraction timing (.rft) and dose conversion factor (.dcf) files are also included in this response.

In general, the input data required to produce the included RADTRAD-NAI MSLB psf files is from NAI-i101 -043, Revision 1, 'AST Licensing Technical Report for St. Lucie Unit I.' Additional computations are provided in this description to clarify the development of the psf inputs.

Intact SG Initial Secondary Activity Model: sl 1-msib-oc-intactsg-initact.psf This model represents the initial secondary side activity in the intact SG that is released during cooldown. The RCS activities in the nuclide inventory file (sllrcsact.nif) are in units of microCuries per gram of primary coolant.

The plant power input in the .psf file is used to convert the microCuries per gram in the sl1rcsact.nif file to total Curies as follows:

Intact SG mass (gm) x conversion = 205,000 lbs x 453.6 gm /lb x 1.0e-06 Ci /pCi Intact SG mass in grams x conversion = 92.99 gm Ci /pCi Since the initial secondary side activity is 1/10th that of the primary side, the sl1-sg-init-act.rft file input is used to reduce the activity in the .nif file by setting the iodine fraction to 0.1.

The partition coefficient of 100 is represented by reducing the steam release rates in Tables 2.3-2 of NAI-1 101-43, Revision 1 by a factor of 100.

Faulted SG Initial Secondary Activity Model: sll-msib-oc-faultedsg-initact.psf This model represents the initial activity in the faulted steam generator that is released during blowdown. This model is similar to the model for the intact SG initial secondary activity, except the entire SG contents is blown down at a rate of 1E6 Ibm/min.

Intact SG RCS Initial Noble Gas Activity Model: sll-msib-oc-intactsg-rcsng.psf This model represents the RCS noble gas activity that is leaked into the intact steam generator and released directly into the environment. The SG component is omitted for this model and the initial RCS noble gas activity is released directly via SG tube leakage. The plant power input of 218 gm Ci /pCi previously discussed in the LOCA model description is used to convert microCuries per gram from the .nif file to Curies. The SG tube ,3 leakage to the intact SG is 0.15 gpm, which is converted to mass flow based on an RCS density of 45.4 lbs/ft3.

Note that the RCS volume is also converted to mass using the same density. Since the primary to secondary

St. Lucie Units I and 2 L-2004-203 Docket Nos 50-335 and 50-389 Attachment 3 Page 3 of 4 tube leakage originates in the RCS, the density used for conversion of the RCS volume and the volumetric tube leakage should be consistent.

Intact SG RCS Initial Non-noble Gas Activity Model: sI1-mslb-oc-intactsg-rcs.psf This model represents the initial RCS non-noble gas activity leaked to the intact SG and released during cooldown. The plant power input of 218 gm Ci /pCi previously discussed in the LOCA model description is used to convert microCuries per gram from the .nif file to Curies. The intact SG is modeled as a separate component.

Since the intact SG will act to dilute the RCS activity prior to release, the minimum SG liquid inventory of 105,000 Ibm is used.

Faulted SG RCS Initial Activity Model: sll-mslb-oc-faultedsg-rcs.psf This model represents the initial RCS activity leaked to the faulted steam generator and released during blowdown. All of the activity that leaks through the SG tubes into the faulted SG is assumed to be immediately released into the environment.

Intact SG DNB Fuel Noble Gas Activity Model: sll-msib-oc-intactsg-dnbng.psf This model represents the DNB fuel failure noble gases released into the RCS, leaked to the intact SG, and released directly to the environment. The source term from the DNB fuel failure is defined by the fraction of fuel failure (3.5% DNB assumed for this case) and the fraction of the assembly inventory that Regulatory Guide 1.183 prescribes as being released from the failed fuel. Implementation of the source term was accomplished by using the sllfueldnb.nif file to model the total core activity available forrelease. The sllfueldnb.nif file was developed from the LOCA core activity .nif file. The 1-131 inventory in the sllfueldnb.nif file was increased by a factor of 8/5 to increase the 1-131 release to 8%(Table 3 of Reg. Guide 1.183) while keeping other halogen releases at 5%. Similarly, the Kr-85 inventory in the sllfueldnb.nif file was increased by a factor of 2 to increase the Kr-85 release to 10% while keeping other noble gases at the 5% level specified for the noble gas group.

The source term in the sllfueldnb.nif file was modified for the MSLB analysis by applying a multiplier via the

.power level" RADTRAD-NAI data entry to adjust the total core inventory by applying a radial peaking factor of 1.7 and a 0.035 fraction for fuel that experiences DNB (1.7 x 0.035 = 0.0595). Thus, the power level in the sllfueldnb.nif file was set to 1.0 and the reactor power in the RADTRAD-NAI model was set to 0.0595.

A minimum RCS inventory produces a maximum activity concentration in the leakage release path. Since the pressurizer volume may not mix thoroughly with the rest of the RCS, it is conservatively neglected giving an RCS mass of 411,500 Ibm.

Intact SG DNB Fuel Non-Noble Gas Activity Model: sIl1-msIb-oc-intactsg-dnb.psf This model represents the DNB fuel failure non-noble gas activity released into the RCS, leaked to the intact SG, and released during cooldown.

St. Lucie Units 1 and 2 L-2004-203 Docket Nos 50-335 and 50-389 Attachment 3 Page 4 of 4 Faulted SG DNB Fuel Activity Model: sl1-mslb-oc-faultedsg-dnb.psf This model represents the DNB fuel failure activity released into the RCS, leaked to the faulted SG, and released during blowdown.

St. Lucie Units 1 and 2 L-2004-203 Docket Nos 50-335 and 50-389 Attachment 4 Page 1 of 9 Unit 2 LOCA Models Summary NAI1101-017, Rev. 2

St. Lucie Units 1 and 2 L-2004-203 Docket Nos 50-335 and 50-389 Attachment 4 Page 2 of 9 The St. Lucie Unit 2 LOCA analyses consist of five RADTRAD-NAI models and the MicroShield models described in (and attached to) the response to the NRC's Request for Additional Information (RAI) question 7.h. The Control Room dose sums the contributions from the six models, while the offsite doses sum the contributions from the five RADTRAD-NAI models (excluding direct shine to the Control Room). The five RADTRAD-NAI plant specific input files (.psf) are included in this response to allow for comparison with the NRC's RADTRAD input files. The supporting nuclide inventory (.nif),

release fraction timing (.rft) and dose conversion factor (.dcf) files are also included in this response.

In general, the input data required to produce the included RADTRAD-NAI LOCA psf files is from NAI-1101-044, Revision 1, "AST Licensing Technical Report for St. Lucie Unit 2." Additional computations are provided in this description to clarify the development of the psf inputs. It should also be noted that the included ECCS leakage psf files account for 10% of the total iodine in the leaked fluid becoming airborne as discussed in prior conference calls and as documented in the response to RAI question 7.b.

Containment Purge Model: SL2-LOCA-Cont-Purge-cr540ui-rev3.psf The containment purge dose contribution results from assuming that containment purge is operating at 2,500 cfm at the time of the event. Containment purge is isolated at 30 seconds based on high containment pressure; therefore, only RCS activity (sI2-rcsact-1.nif) is released via purge.

The RCS activities in the nuclide inventory file are in units of microCuries per gram of coolant. The power in the plant specific input file is used to convert the .nif activities from microCuries per gram to total Curie inventory as follows:

RCS mass in grams x conversion = 526,100 lbs x 453.6 gm /lb x l.Oe-06 Ci /pCi RCS mass in grams x conversion = 238.6 gm Ci /pCi Containment sprays are not initiated until after containment purge is isolated and are not credited (60 seconds for spray initiation versus 30 seconds for purge isolation). The containment is modeled as two unsprayed volumes of 2,125,000 ft3 and 375,000 ft3. The total purge flow is split between the two containment regions on a volumetric basis (2,125 cfm and 375 cfm respectively). The Control Room atmospheric dispersion factor is from the plant stack to the North Control Room intake and equals 0.00235 through the time of containment purge isolation. This value includes credit for dilution (factor of 2) based on both Control Room intakes being open with equal flow and not being in the same wind direction window.

No further purging occurs during the LOCA.

Containment Leakage Bypassing the Shield Building Ventilation System Model: SL2-LOCA-Cont-leakage-Bypass-cr-540cfm-ui-revl.psf The containment leakage flow bypassing SBVS filtration includes all flow prior to drawdown (135 seconds) and 9.6% of all flow after drawdown. Due to the configuration of the plant and the leakage locations, 9.6% of the containment leakage prior to drawdown (0.835 cfm) is released unfiltered from the Auxiliary Building via the plant stack and 90.4% of the containment leakage prior to drawdown (7.847 cfm) is released unfiltered via the containment closest point. Note that as per the response to

St. Lucie Units 1 and 2 L-2004-203 Docket Nos 50-335 and 50-389 Attachment 4 Page 3 of 9 RAI question 7.i, an additional case was run with the entire containment leakage prior to drawdown released from the containment closest point with the result being changed in the ten thousandths place which would not be seen in the reported significant figures. After drawdown, 9.6% of the containment leakage is released unfiltered from the plant stack via the Auxiliary Building.

The containment leakage (0.5%/day for the first 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> and 0.25%/day for the remainder of the event) is assumed to occur from both the sprayed and unsprayed regions of containment.

Elemental iodine (2.89/hour removal rate) and aerosol/particulate (0.1/hour removal rate) natural deposition are only credited in unsprayed regions of containment (i.e., the sprayed containment volume prior to sprays starting only and the unsprayed containment volume). Note that elemental iodine natural deposition in the unsprayed region is conservatively reduced to 0 at the time the total elemental iodine decontamination factor in containment reaches 200 (2.065 hours7.523148e-4 days <br />0.0181 hours <br />1.074735e-4 weeks <br />2.47325e-5 months <br />).

Spray removal rates are as specified in Table 2.1 -1 of NAI-1101-043, Revision 1 with elemental removal being reduced to 0/hour at 2.065 hours7.523148e-4 days <br />0.0181 hours <br />1.074735e-4 weeks <br />2.47325e-5 months <br /> when an elemental iodine decontamination factor of 200 is reached and particulate spray removal being reduced to 1 / 1 0th at 2.52 hours6.018519e-4 days <br />0.0144 hours <br />8.597884e-5 weeks <br />1.9786e-5 months <br /> when a particulate decontamination factor of 50 is reached.

The elemental iodine and particulate spray removal rates and elemental iodine natural deposition removal rate are calculated in accordance with Standard Review Plan Section 6.5.2. The resulting elemental iodine spray removal rate value was significantly larger than the conservatively used limit of 20/hour. The following equations develop the base removal rates for these three mechanisms. The particulate/aerosol natural deposition removal rate of 0.1/hour is discussed in the response to RAI question 7.a.

Containment Spray Elemental Iodine Removal Rate Xse= 6KgTF/VD Where:

Kg = gas phase mass transfer coefficeint = 16.4 cm/sec, Kg = 1,937 ft/hr T = time of drop fall = drop fall height / terminal velocity Drop fall height = 140 ft Drop terminal velocity = 9.23 ft /sec T = 140 / 9.23 = 15.17 sec = 4.2e-3 hr F = spray flow rate = 2,650 gpm = 21,255 cu ft /hr V = containment volume = 2,500,000 cu ft D = mean drop diameter = 700 microns = 0.0023 ft 6 (1937 ft/hr) (4.2e-3 hr) (21255 cu ft/hr)

Ase = -- = 180 /hr (2500000 cu ft) (2.3e-3 ft)

Maximum removal initially set to 20 /hour.

St. Lucie Units 1 and 2 L-2004-203 Docket Nos 50-335 and 50-389 Attachment 4 Page 4 of 9 Containment Sprav Particulate/Aerosol Removal Rate

?Ap=3hFE/2VD where:

h = drop fall height = 140 ft F = spray flow rate = 2,650 gpm = 21,255 cu ft /hr E/D = collection efficiency = 10 /m (3.05 /ft) initially; then 1 / m when DF=50 per SRP 6.5.2 V = Containment Volume = 2,500,000 cu ft 3 (140 ft) (21255 ft3 / hr) 2p= x 3.05 /ft = 5.44 /hr initially 2 (2500000 ft3)

Elemental Iodine Natural Deposition Removal Rate le= Kw A/V where:

Kw = 4.9 m/hr per SRP 6.5.2 = 16.07 ft /hr A = wetted surface = 450,000 sq ft V = 2,500,000 cu ft A e = (16.07 ft/hr ) (450,000 sq ft) / 2,500,000 cu ft = 2.89 /hr The Control Room atmospheric dispersion factors are as follows:

Time Period Release to Receptor X/Q (hours) 0 to 0.00833 (30 Plant Stack to North CR Intake 0.00235*

seconds = time of CR isolation) 0.00833 to 1.5 (1.5 Plant Stack to the Midpoint between 0.00379 hours = time of the CR Intakes operator selection and opening of favorable intake) 1.5 to 2.0 Plant Stack to South CR Intake 0.000648**

2.0 to 8.0 Plant Stack to South CR Intake 0.000428**

8.0 to 24 Plant Stack to South CR Intake 0.000199**

24 to 96 Plant Stack to South CR Intake 0.000120**

96 to 720 Plant Stack to South CR Intake 9.15e-05**

• Includes dilution credit (factor of 2) due to South CR Intake being open with equal flow and not being located in the same wind direction window as the North CR Intake

• • Includes dilution credit (factor of 4) due to operator selection of favorable intake

St. Lucie Units 1 and 2 L-2004-203 Docket Nos 50-335 and 50-389 Attachment 4 Page 5 of 9 Containment Leakage Processed by the Shield Building Ventilation SVstem Model: SL2-LOCA-Cont-leakage-SBVS-cr-540cfm-ui-revlc rev3.psf The discussion of the containment leakage bypassing SBVS applies except for the leakage flows, the Control Room atmospheric dispersion factors and the filtration by the SBVS. The leakage flows equal 7.847 cfm prior to 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> and 3.929 cfm after 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> (when the containment leakage is reduced to halo. Prior to drawdown (135 seconds), the 7.847 cfm are released unfiltered from the closest containment point and represent the 90.4% of the containment leakage previously discussed in the bypass model. After drawdown, the SBVS provides filtration at the Technical Specification values as discussed in the response to RAI question 7.1. The Control Room atmospheric dispersion factors are as follows:

Time Period Release to Receptor X/Q (hours) 0 to 0.00833 (30 Containment Closest Point to North 0.0073 seconds = time of CR Intake (unfiltered)

CR isolation) 0.00833 to 0.0375 Containment Closest Point to the 0.00332 (135 seconds = Midpoint between the CR Intakes time of drawdown) (unfiltered) 0.0333 to 1.5 (1.5 Plant Stack to the Midpoint between 0.00379 hours = time of the CR Intakes operator selection and opening of favorable intake) 1.5 to 2.0 Plant Stack to South CR Intake 0.000648**

2.0 to 8.0 Plant Stack to South CR Intake 0.000428**

8.0 to 24 Plant Stack to South CR Intake 0.000199**

24 to 96 Plant Stack to South CR Intake 0.000120**

96 to 720 Plant Stack to South CR Intake 9.15e-05**

• • Includes dilution credit (factor of 4) due to operator selection of favorable intake Direct ECCS Component Leakage to the Environment Model: s12_10eccs-rai.psf With the exception of noble gases, all fission products released from the fuel to containment are assumed to be instantaneously and homogeneously mixed in the minimum containment sump water (56,850 ft.3). The radioiodine postulated for release to the environment is assumed to be 97%

elemental and 3% organic. The base ECCS leakage value of 0.64 gph is doubled to 1.28 gph, which equates to just under 0.002874 ft.3/min. Ten percent of the total iodine activity in the leaked fluid is conservatively released to the ECCS area. This is done by reducing the 0.002874 ft.3/min doubled ECCS leakage by a factor of 10 to 0.0002874 ft.3/min, which is released to the ECCS area. The ECCS area filtration filters the release based on amended Technical Specification requirements associated with this AST submittal (99% aerosol/particulate, 95% elemental iodine and 95% organic iodine).

The Control Room atmospheric dispersion factors are as follows:

St. Lucie Units 1 and 2 L-2004-203 Docket Nos 50-335 and 50-389 Attachment 4 Page 6 of 9 Time Period Release to Receptor X/Q (hours) 0 to 0.0083 (30 Auxiliary Building Exhaust to North 0.00485 seconds = time of CR Intake CR isolation) 0.0083 to 1.5 (1.5 Auxiliary Building Exhaust to the 0.00504 hours = time of Midpoint between the CR Intakes operator selection and opening of favorable intake) 1.5 to 2.0 Auxiliary Building Exhaust to South 0.00311 CR Intake 2.0 to 8.0 Auxiliary Building Exhaust to South 0.00273 CR Intake 8.0 to 24 Auxiliary Building Exhaust to South 0.00117 CR Intake 24 to 96 Auxiliary Building Exhaust to South 0.000873 CR Intake I__

96 to 720 Auxiliary Building Exhaust to South 0.000676 CR Intake II RWT Backleakage Model: SL2-LOCA-RWST-LEAK-cr-54Ocfm-df25-12adj-revla.psf The RWT backleakage dose contribution is discussed in detail in the response to RAI question 7.b. It is conservative to use the RWT minimum volume at recirculation for determining releases from the RWT due to backleakage. For this minimum volume to occur, additional RWT liquid enters the containment sump prior to recirculation creating a containment sump liquid volume of 61,969 ft.3 (which is greater than the sump volume used for ECCS, but produces a more conservative result for RWT backleakage based on reduced RWT inventory).

A 2 gpm (0.267 ft.3/min) leak path is modeled as a filtered pathway from the containment sump component to the RWT piping component. This is based upon the RG 1.183 guidance to double the maximum leak rate of 1 gpm. The backleakage is subcooled by the time it migrates back from the ECCS to the RWT. In accordance with RG 1.183 guidance all of the non-iodine particulate in the leakage is assumed to be retained in the sump water and not available for airborne release. This is modeled using the .rft file to eliminate the non-iodine particulate groups from the release.

Furthermore, since the backleakage is subcooled when it enters the tank and there is no boiling in the tank, it is assumed that all of the particulate iodine in the leakage is likewise retained in the liquid inventory. This is modeled by assigning a 100% efficiency filtration for the particulate in the leakage flow. A 0% efficiency will be assigned to the elemental and organic iodine. A value of 2% of the iodine particulate is assumed to be transformed into elemental iodine in the acidic solution of the RWT after the first hour (see response to RAI question 7.b). This inventory is accounted for by adjusting the elemental fraction specified in the chemical form of the original release from the fuel in the psf input file.

St. Lucie Units 1 and 2 L-2004-203 Docket Nos 50-335 and 50-389 Attachment 4 Page 7 of 9 During the first hour, the 2 gpm leak path flow will be increased by a factor of 3.3 (= 6.6 / 2) to effectively increase the elemental iodine composition to 6.6%. Therefore, the flow is 0.88 ft.3/min for the first hour (after a 0.25 hour2.893519e-4 days <br />0.00694 hours <br />4.133598e-5 weeks <br />9.5125e-6 months <br /> [15 minute] delay for start of recirculation) and 0.267 ft.3/min thereafter.

During the initial hour when flows are elevated by a factor of 3.3 to model the increased elemental portion of the release, a filter efficiency of 70% will be applied to the organic component in order to compensate for the flow increase with respect to the organic portion of the release (i.e., [1-.7]

• 3.3 =

1).

The liquid piping volume from the closest potential backleakage point to the RWST equals 500 ft3, which is modeled as a separate volume.

At the beginning of the recirculation phase a minimum of approximately 38,842 gallons of water are initially assumed to be in the RWT. This is based upon the minimum RWT inventory at RAS of 83,290 gallons minus a 7,345 gallon uncertainty = 75,945 gallons. The transfer volume of 23,600 gallons is also removed to produce a minimum volume of 52,345 gallons (6,997 ft3). During the course of the event the 2 gpm backleakage to the RWT increases the liquid volume. A variable volume component in RADTRAD-NAI is used to model the RWT liquid to simulate the increasing liquid inventory.

Air/vapor is released to the environment from the RWT at a rate of 2 gpm (0.267 cu ft/min) based on the air/vapor in the tank being displaced by the incoming backleakage flow. In addition, the RWT vent flow rate considers the tank venting produced by the gas expansion and contraction associated with the approximately 10F daily temperature variation assumed in the tank. The basis for the 10F daily temperature cycle is discussed in the response to RAI question 7.c. Based upon an ideal gas relationship, a 10F temperature change in a tank at 1000F would impose about a 1.8% expansion and contraction daily. Therefore, 2% of the RWT air volume is conservatively expelled from the tank daily based on temperature changes and associated expansion. The RWT air volume at various intervals during the 30 day event is used to compute the expelled gas release.

Based upon the actual total RWT tank volume of 554,000 gallons and the previously discussed minimum water inventory assumption of 52,345 gallons, the initial air space volume in the tank is 501,655 gallons. This volume is reduced at a rate of 2 gpm as the tank fills with water during the event. The following spreadsheet presents the time-dependent air volume and the tank air release based upon a 2%/day venting (2%/1440 min = 1.3889e-5 x air volume / min ) due to daily heating and cooling expansion and contraction plus 2 gpm displacement. The "Actual Release" column is the expansion leak rate plus the displacement. The model is removing the RWT release volume from the liquid space instead of the gas space. Therefore, the volume of the release is reduced by a partition factor of 25 to account for the higher concentration of elemental iodine in the liquid relative to the concentration in the gas. The model's adjusted release from the tank equals the volume of the air calculated to be released divided by the partition coefficient of 25 to account for the lower iodine concentration of the air volume compared to the liquid volume. The spreadsheet developing the input to the model is presented below:

St. Lucie Units 1 and 2 L-2004-203 Docket Nos 50-335 and 50-389 Attachment 4 Page 8 of 9 RWT Time-dependent Inventory & Release Spreadsheet Time Total Liquid PF Air Air Liquid Actual Adjusted Leakage Volume (12) Volume Volume Volume Release Release (hrs) (gal) (gal) (gal) cu ft cu ft cfm cfm 0 0 52345 25 501655 67061 6997 1.1984 0.0479 2 240 52585 25 501415 67029 7030 1.1980 0.0479 8 960 53305 25 500695 66933 7126 1.1966 0.0479 24 2880 55225 25 498775 66676 7382 1.1931 0.0477 48 5760 58105 25 495895 66291 7767 1.1877 0.0475 96 11520 63865 25 490135 65521 8537 1.1770 0.0471 150 18000 70345 25 483655 64655 9404 1.1650 0.0466 250 30000 82345 25 471655 63051 11008 1.1427 0.0457 350 42000 94345 25 459655 61447 12612 1.1204 0.0448 450 54000 106345 25 447655 59843 14216 1.0981 0.0439 550 66000 118345 25 435655 58238 15820 1.0759 0.0430 650 78000 130345 25 423655 56634 17425 1.0536 0.0421 720 86400 138745 25 415255 55511 18547 1.0380 0.0415 The partition coefficient for elemental iodine in the RWT was derived from the following temperature dependent relationship provided by equations 14 and 15 in section 3.3 of NUREG/CR 5950, 'Iodine Evolution and pH Control":

PC(12 ) = (12) gas where:

Logl 0 PC(1 2) = 6.29 - {0.0149 (T)} where T is given in degrees K During the event, the RWT fluid temperature will not exceed 130 0F, which is conservatively used to determine the partition coefficient for the duration of the event.

St. Lucie Units 1 and 2 L-2004-203 Docket Nos 50-335 and 50-389 Attachment 4 Page 9 of 9 The Control Room atmospheric dispersion factors are as follows:

Time Period Release to Receptor X/Q (hours) 0 to 0.0083 (30 RWT Vent to North CR Intake 0.00138 seconds = time of CR isolation) 0.0083 to 1.5 (1.5 RWT Vent to the Midpoint between 0.00133 hours = time of the CR Intakes operator selection and opening of favorable intake) .-

1.5 to 2.0 RWT Vent to South CR Intake 0.00101 2.0 to 8.0 RWT Vent to South CR Intake 0.000864 8.0 to 24 RWT Vent to South CR Intake 0.000372 24 to 96 RWT Vent to South CR Intake 0.000292 96 to 720 RWT Vent to South CR Intake 0.00022

St. Lucie Units 1 and 2 L-2004-203 Docket Nos 50-335 and 50-389 Attachment 5 Page 1 of 4 Unit 2 MSLB Models Summary NAI1101-020, Rev. 1

St. Lucie Units 1 and 2 L-2004-203 Docket Nos 50-335 and 50-389 Attachment 5 Page 2 of 4 The St. Lucie Unit 2 MSLB analyses include an evaluation of a break inside and outside of containment. The St.

Lucie Unit 2 MSLB analyses include fuel failures due to fuel centerline melt (FCM) or departure from nucleate boiling (DNB); therefore, no spiking cases are evaluated. The break outside of containment with 2.85% DNB and 540 cfm of unfiltered Control Room inleakage is the most limiting case with respect to reported radiological consequences and is discussed in this model description. The St. Lucie Unit 2 MSLB analyses consist of eight RADTRAD-NAI models and the MicroShield models described in (and attached to) the response to the NRC's Request for Additional Information (RAI), question 7.h. The Control Room dose sums the contributions from the nine models, while the offsite doses sum the contributions from the eight RADTRAD-NAI models (excluding direct shine to the Control Room). The eight RADTRAD-NAI plant specific input files (.psf) are included in this response to allow for comparison with the NRC's RADTRAD input files. The supporting nuclide inventory (.nif),

release fraction timing (.rft) and dose conversion factor (.dcf) files are also included in this response.

In general, the input data required to produce the included RADTRAD-NAI MSLB psf files is from NAI-1101 -044, Revision 1, 'AST Licensing Technical Report for St. Lucie Unit 2." Additional computations are provided in this description to clarify the development of the psf inputs.

Intact SG Initial Secondary Activity Model: SL2-MSLB-OC-Intact-SG-init-act-cr600cfm-revl.psf This model represents the initial secondary side activity in the intact SG that is released during cooldown. The RCS activities in the nuclide inventory file (sl2-rcsact-1.nif) are in units of microCuries per gram of primary coolant. The plant power input in the .psf file is used to convert the microCuries per gram in the sl2-rcsact-1.nif file to total Curies as follows:

Intact SG mass (gm) x conversion = 260,000 lbs x 453.6 gm /lb x 1.0e-06 Ci /pCi Intact SG mass in grams x conversion = 117.9 gm Ci /pCi Since the initial secondary side activity is 1/10th that of the primary side, the SG-init-act-l-only.rft file input is used to reduce the activity in the .nif file by setting the iodine fraction to 0.1.

The partition coefficient of 100 is represented by reducing the steam release rates in Tables 2.3-2 of NAI-1 101-44, Revision 1 by a factor of 100. Note that the steam release value input for 0.75 hours8.680556e-4 days <br />0.0208 hours <br />1.240079e-4 weeks <br />2.85375e-5 months <br /> to 1.0 hour0 days <br />0 hours <br />0 weeks <br />0 months <br /> is equal to 52.86 Ibm/min after application of the decontamination factor, which is slightly higher than the actual cooldown steam release value divided by 100 (52.83 Ibm/min).

This model conservatively uses a Control Room unfiltered inleakage value of 600 cfm (higher than the most limiting value of 540 cfm).

Faulted SG Initial Secondary Activity Model: SL2-MSLB-OC-Rupt-S G-init-act-cr560cfm-ui-rev1 This model represents the initial activity in the faulted steam generator that is released during blowdown. This model is similar to the model for the intact SG initial secondary activity, except the entire SG contents is blown down at a rate of 1E7 Ibm/min.

This model conservatively uses a Control Room unfiltered inleakage value of 560 cfm (higher than the most limiting value of 540 cfm).

Intact SG RCS Initial Noble Gas Activitv Model: SL2-MSLB-OC-Intact-SG-init-RCSact-ng-cr600cfm-revl.psf

St. Lucie Units 1 and 2 L-2004-203 Docket Nos 50-335 and 50-389 Attachment 5 Page 3 of 4 This model represents the RCS noble gas activity that is leaked into the intact steam generator and released directly into the environment. The SG component is omitted for this model and the initial RCS noble gas activity is released directly via SG tube leakage.

The RCS activities in the nuclide inventory file are in units of microCuries per gram of coolant. The power in the plant specific input file is used to convert the .nif activities from microCuries per gram to total Curie inventory as follows:

RCS mass in grams x conversion = 475,385 lbs x 453.6 gm /lb x 1.0e-06 Ci /IpCi RCS mass in grams x conversion = 215.6 gm Ci /pCi The SG tube leakage to the intact SG is 0.15 gpm, which is converted to mass flow based on an RCS density of 45.2 Ibs/ft3 . Note that the RCS volume is also converted to mass using the same density. Since the primary to secondary tube leakage originates in the RCS, the density used for conversion of the RCS volume and the volumetric tube leakage should be consistent.

This model conservatively uses a Control Room unfiltered inleakage value of 600 cfm (higher than the most limiting value of 540 cfm).

Intact SG RCS Initial Non-noble Gas Activity Model: SL2-MSLB-OC-lntact-SG-init-RCSact-l &a-cr600cfm-revl.psf This model represents the initial RCS non-noble gas activity leaked to the intact SG and released during cooldown. The plant power input of 215.6 gm Ci /pCi previously documented for the intact SG RCS initial noble gas activity model is used to convert microCuries per gram from the .nif file to Curies. The intact SG is modeled as a separate component. Since the intact SG will act to dilute the RCS activity prior to release, the minimum SG liquid inventory of 105,000 Ibm is used.

This model conservatively uses a Control Room unfiltered inleakage value of 600 cfm (higher than the most limiting value of 540 cfm).

Faulted SG RCS Initial Activity Model: SL2-MSLB-OC-Rupt-S Ginit-RCSact-all-cr560cfm-revI This model represents the initial RCS activity leaked to the faulted steam generator and released during blowdown. All of the activity that leaks through the SG tubes into the faulted SG is assumed to be immediately released into the environment.

This model conservatively uses a Control Room unfiltered inleakage value of 560 cfm (higher than the most limiting value of 540 cfm).

Intact SG DNB Fuel Noble Gas Activity Model: SL2-MSLB-OC-lntact-SG-30DNB-ng-cr560cfm -rev1.psf This model represents the DNB fuel failure noble gases released into the RCS, leaked to the intact SG, and released directly to the environment. The source term from the DNB fuel failure is defined by the fraction of fuel failure (3.0% DNB is conservatively assumed for this case [note this is greater than the most limiting value of 2.85% DNB]) and the fraction of the assembly inventory that Regulatory Guide 1.183 prescribes as being released from the failed fuel. Implementation of the source term was accomplished by using the sl2-mslb-dnb.nif file to model the total core activity available for release. The sl2-mslb-dnb.nif file was developed from the LOCA core activity .nif file. The 1-131 inventory in the sl2-mslb-dnb.nif file was increased by a factor of 815 to increase the 1-131 release to 8% (Table 3 of Reg. Guide 1.183) while keeping other halogen releases at 5%.

St. Lucie Units 1 and 2 L-2004-203 Docket Nos 50-335 and 50-389 Attachment 5 Page 4 of 4 Similarly, the Kr-85 inventory in the sl2-mslb-dnb.nif file was increased by a factor of 2 to increase the Kr-85 release to 10% while keeping other noble gases at the 5% level specified for the noble gas group.

The source term in the sl2-mslb-dnb.nif file was modified for the MSLB analysis by applying a multiplier via the "power level" RADTRAD-NAI data entry to adjust the total core inventory by applying a radial peaking factor of 1.7 and a 0.03 fraction for fuel that experiences DNB (1.7 x 0.03 = 0.051). Thus, the power level in the sl1fueldnb.nif file was set to 1.0 and the reactor power in the RADTRAD-NAI model was set to 0.051.

A minimum RCS inventory produces a maximum activity concentration in the leakage release path. Since the pressurizer volume may not mix thoroughly with the rest of the RCS, it is conservatively neglected giving an RCS mass of 385,113 Ibm.

This model conservatively uses a Control Room unfiltered inleakage value of 560 cfm (higher than the most limiting value of 540 cfm).

Intact SG DNB Fuel Non-Noble Gas Activity Model: SL2-MSLB-OC-lntact-SG-30DNB-l&a-cr560cfm-revl.psf This model represents the DNB fuel failure non-noble gas activity released into the RCS, leaked to the intact SG, and released during cooldown. This model conservatively uses 3.0% DNB fuel failure which bounds the limiting 2.85% DNB fuel failure value.

This model conservatively uses a Control Room unfiltered inleakage value of 560 cfm (higher than the most limiting value of 540 cfm).

Faulted SG DNB Fuel Activity Model: SL2-MSLB-OC-Rupt-SG-285DNB-all-cr540cfm-revl.psf This model represents the DNB fuel failure activity released into the RCS, leaked to the faulted SG, and released during blowdown. This model limits the DNB fuel failure to 2.85% and the Control Room unfiltered inleakage to 540 cfm.

St. Lucie Units 1 and 2 L-2004-203 Docket Nos 50-335 and 50-389 Attachment 6 Page 1 of 122 The MicroShield case file inputs and output (following 121 pages)

MicroShield v5.05 (5.05-0000) Attachment 6 to PSL-ENG-SENS-04-037, Rev. 0 Page I of 121 Grove Engineering

?age  : 1 File Ref:

)OS File: SL2MSO1.MS5 Date:

tun Date: January 10, 2003 By:

tun Time: 9:49:56 PM Checked:

)uration: 00:00:57 Case

Title:

sl2msOl

Description:

St. Lucie Unit 2 LOCA (Containment to CR) - 0.5083 h Geometry: 7 - Cylinder Volume - Side Shields Source Dimensions Height 5.3e+3 cm 172 ft 5.0 in Radius 2.le+3 cm 70 ft Dose Points X Y. 7

1. 1 3.26e+03 cm 1402.08 cm 0 cm 106 ft 10.7 in 46 ft 0.0 in Shields Source 7.52e+10 cm3 Water 0.000598 Shield 1 4.877 cm Iron .7.86 Shield 2 117.043 cm Air 0.00122 Shield 3 91.44 cmConcrete2.35 Transition 545.287 cm Air 0.00122 Shield 5 60.96 cmConcrete2.35 Air Gap Air 0.00122 Source Input Grouping Method : Standard Indices number of Groups : 25 Lower Energy Cutoff : 0.015 Photons < 0.015 : Excluded Library : Grove N14qAie. 1Wq/q 3.

Ba-137m 2.4020e+005 8.8874e+015 3.1959e+000 1.1825e+005 Br-82 1.2857e+004 4.7572e+014 1.7107e-001 6.3295e+003 Br-83 1.5346e+005 5.6781e+015 2.0418e+000 7.5548e+004 Br-84 1.5598e+005 5.7712e+015 2.0753e+000 7.6787e+004 Cs-134 -5.5375e+005 2.0489e+016 7.3678e+000 2.7261e+005 Cs-134m 1.0998e+005 4.0691e+015 1.4632e+000 5.4140e+004 Cs-136- 1.4896e+005 5.5114e+015 1.9819e+000 7.3330e+004 Cs-137 2.7284e+005 1.0095e+016 3.6302e+000 1.3432e+005 Cs-138 2.2098e+006 8.1763e+016 2.9402e+001 1.0879e+006 I-130 9.2808e+004 3.4339e+015 1.2348e+000 4.5689e+004 I-131 1.5851e+006 5.8650e+016 2.1091e+001 7.8035e+005 I-132 2.1355e+006 7.9012e+016 2.8413e+001 1.0513e+006 I-133 3.0365e+006 1.1235e+017 4.0402e+001 1.4949e+006 I-134 2.6430e+006 9.7791e+016 3.5166e+001 1.3011e+006 1-135 2.7321e+006 1.0109e+017 3.6351e+001 1.3450e+006 Kr-83m 4.2642e+005 1.5778e+016 5.6736e+000 2.0992e+005 Kr-85 5.7600e+004 2.1312e+015 7.6638e-001 2.8356e+004 Kr-85m 8.2452e+005 3.0507e+016 1.0970e+001 4.0591e+005 Kr-87 1.2829e+006 4.7468e+016 1.7070e+001 6.3158e+005 Kr-88 2.0987e+006 7.7652e+016 2.7924e+001 1.0332e+006 Rb-86 4.9855e+003 1.8446e+014 6.6333e-002 2.4543e+003

?age - 2 Attachment 6 to PSL-ENG-SENS-04-037, Rev. 0

)OS File: SL2MSO1.MS5 Page 2 of 121 run Date: January 10, 2003 run Time: 9:49:56 PM

)uration: 00:00:57 Nuclide curies becquerels uCi/cm3 Ba/CM3 Rb-88 1.2656e+006 4.6827e+016 1.6839e+001 6.2304e+005 Rb-89 3.2708e+005 1.2102e+016 4.3519e+000 1.6102e+005 Sr-89 5.3676e+001 1.9860e+012 7.1417e-004 2.6424e+001 Xe-131m 4.2909e+004 1.5876e+015 5.7091e-001 2.1124e+004 Xe-133 7.4598e+006 2.7601e+017 9.9254e+001 3.6724e+006 Xe-133m 2.3808e+005 8.8091e+015 3.1677e+000 1.1721e+005 Xe-135 2.3557e+006 8.7160e+016 3.1343e+001 1.1597e+006 Xe-135m 1.1861e+006 4.3884e+016 1.5781e+001 5.8389e+005 Xe-138 1.3473e+006 4.9850e+016 1.7926e+001 6.6327e+005 Buildup The material reference is : Shield 3 Integration Parameters Radial 20 Circumferential 20 Y Direction (axial) 40 Results Enercv Activity Fluence Rate Fluence Rate Exposure Rate ExDosure Rate MeV 'photons/sec MeV/rcM2 sec MeV/CM2/sec mg/hr mR/hr No Buildup With Buildup No Buil-dU2 With Buildup 0.03 1.610e+17 1.215e-305 5.633e-19 1.204e-307 5.583e-21 0.04 4.947e+14 3.140e-144 4.590e-21 1.389e-146 2.030e-23 0.06 6.869e+14 1.079e-58 1.495e-19 2.144e-61 2.970e-22 0.08 1.032e+17 6.156e-35 5.344e-17 .9.742e-38 8.457e-20 0.1 2.851e+14 3.639e-29 6.826e-19 5.567e-32 1.044e-21 0.15 3.605e+16 2.356e-19 7.145e-16 3.880e-22 1.177e-18 0.2 1.096e+17 1.238e-iS 2.284e-12 2.184e-18 4.03le-15 0.3 3.501e+16 1.388e-12 1.678e-09 2.633e-15 3.183e-12 0.4 1.143e+17 7.337e-10 4.976e-07 1.430e-12 9.696e-10 0.5 2.138e+17 5.575e-08 2.298e-05 1.094e-10 4.511e-08 0.6 1.831e+17 8.538e-07 2.300e-04 1.666e-09 4.489e-07 0.8 3.227e+17 1.140e-04 1.605e-02 2.169e-07 3.053e-05 1.0 1.625e+17 1.362e-03 1.168e-01 2.511e-06 2.153e-04 1.5 1.674e+17 2.704e-01 1.035e+01 4.550e-04 1.742e-02 2.0 1.180e+17 4.793e+00 1.144e+02 7.411e-03 1.769e-01 3.0 1.742e+16 3.141e+01 4.210e+02 4.262e-02 5.711e-01 4.0 5.520e+14 8.835e+00 8.393e+01 1.093e-02 1.038e-01 5.0 6.714e+13 4.435e+00 3.296e+01 5.084e-03 3.778e-02 TOTALS: 1.746e+18 4.97Se+Ol 6.628e+02 6.650e-02 9.073e-01

Attachment 6 to PSL-ENG-SENS-04-037, Rev. 0 MicroShield v5.05 (5.05-0000) Page 3 of 121 Grove Engineering

?age  : 1 File Ref:

)OS File: SL2MS02.MS5 Date:

run Date: January 10, 2003 By:

lun Time: 9:52:50 PM Checked: _

)uration: 00:01:06 Case

Title:

sl2ms02

Description:

St. Lucie Unit 2 LOCA (Containment to CR) - 1.5 h Geometry: 7 - Cylinder Volume - Side Shields Source Dimensions Height 5.3e+3 cm 172 ft 5.0 in Radius 2.le+3 cm 70 ft Dose Points A Y. z

1. 1 3.26e+03 cm 1402.08 cm 0 cm 106 ft 10.7 in 46 ft 0.0 in Shields

.5biqjj.qaxe, IToijsjiorj 14tqrjqx perisity.

Source 7.52e+10 cm3 Water 0.000598 Shield 1 4.877 cm Iron 7.86 Shield 2 117.043 cm Air 0.00122 Shield 3 91.44 cmConcrete2.35 Transition 545.287 cm Air 0.00122 Shield 5 60.96 cmConcrete2.35 Air Gap Air 0.00122 Source Input Grouping Method : Standard Indices Number of Groups : 25 Lower Energy Cutoff : 0.015 Photons < 0.015 : Excluded Library : Grove ntJxiAe. c.4i2eZs. beqC~qrQ3S. Ai/c~m3; Am-241 8.5248e-001 3.1542e+010 1.1342e-005 4.1967e-001 Am-242 3.8636e+002 1.4295e+013 5.1406e-003 1.9020e+002 Ba-137m 6.2596e+005 2.3161e+016 8.3285e+000 3.0816e+005 Ba-139 2.4326e+005 9.0005e+015 3.2366e+000 1.1975e+005 Ba-140 4.9690e+005 1.8385e+016 6.6114e+000 2.4462e+005 Ba-141 1.5436e+004 5.7113e+014 2.0538e-001 7.5990e+003 Br-82 4.2137e+004 1.5591e+015 5.6064e-001 2.0744e+004 Br-83 3.8464e+005 1.4232e+016 5.1177e+000 1.8936e+005 Br-84 1.4249e+005 5.2721e+015 1.8959e+000 7.0147e+004 Ce-141 1.1968e+004 4.4280e+014 1.5923e-001 5.8915e+003 Ce-143 1.0569e+004 3.9104e+014 1.4062e-001 5.2029e+003 Ce-144 1.0058e+004 3.7213e+014 1.3382e-001 4.9513e+003 Cm-242 2.7716e+002 1.0255e+013 3.6876e-003 1.3644e+002 Cm-244 4.1701e+001 1.5429e+012 5.5484e-004 2.0529e+001 Cs-134 1.3335e+006 4.9340e+016 1.7743e+001 6.5648e+005 Cs-134m 2.0895e+005 7.7312e+015 2.7801e+000 1.0286e+005 Cs-136 3.5795e+005 1.3244e+016 4.7626e+000 1.7622e+005 Cs-137 6.5706e+005 2.4311e+016 8.7423e+000 3.2347e+005 Cs-138 2.0109e+006 7.4402e+016 2.6755e+001 9.8993e+005 Eu-154 6.3601e+001 2.3532e+012 8.4622e-004 3.1310e+001 Eu-155 4.3087e+001 1.5942e+012 5.7328e-004 2.1211e+001

?age 2 Attachment 6 to PSL-ENG-SENS-04-037, Rev. 0

)OS File: SL2MS02.MS5 Page 4 of 121 Run Date: January 10, 2003 Run Time: 9:52:50 PM Duration: 00:01:06 Nuwclide curies becauerels uCi/cm3 Eu-156 1.1243e+003 4.1598e+013 1.4959e-002 5.5347e+002 1-130 2.9336e+005 1.0854e+016 3.9032e+000 1.4442e+005 I-131 5.2852e+006 1.9555e+017 7.0321e+001 2.6019e+006 1-132 6.9649e+006 2.5770e+017 9.2669e+001 3.4288e+006 I-133 9.8986e+006 3.6625e+017 1.3170e+002 4.8730e+006 I-134 5.5908e+006 2.0686e+017 7.4387e+001 2.7523e+006 I-135 8.2282e+006 3.0444e+017 1.0948e+002 4;.0507e+006 Kr-83m 5.5734e+006 2.0622e+017 7.4156e+001 2.7438e+006 Kr-85 8.8396e+005 3.2707e+016 1.1761e+001 4.3517e+005 Kr-85m 1.0854e+007 4.0158e+017 1.4441e+002 5.3431e+006 Kr-87 1.1467e+007 4.2428e+017 1.5257e+002 5.6451e+006 Kr-88 2.5285e+007 9.3553e+017 3.3642e+002 1.2447e+007 La-140 7.5202e+003 2.7825e+014 1.0006e-001 3.7021e+003 La-141 5.2841e+003 1.9551e+014 7.0306e-002 2.6013e+003 La-142 2.3121e+003 8.5548e+013 3.0763e-002 1.1382e+003 Mo-99 6.8466e+004 2.5332e+015 9.1095e-001 3.3705e+004 Nb-95 4.8315e+003 1.7877e+014 6.4284e-002 2.3785e+003 Nb-95m 3.4110e+001 1.2621e+012 4.5384e-004 1.6792e+001 Nb-97 2.1763e+003 8.0523e+013 2.8956e-002 1.0714e+003 Nd-147 1.9002e+003 7.0307e+013 2.5282e-002 9.3544e+002 Np-238 5.3447e+003 1.9775e+014 7.1112e-002 2.6312e+003 Np-239 1.9051e+005 7.0490e+015 2.5348e+000 9.3788e+004 Pd-109 1.7277e+004 6.3925e+014 2.2987e-001 8.5053e+003 Pm-147 4.7016e+002 1.7396e+013 6.2556e-003 2.3146e+002 Pm-148 8.6941e+002 3.2168e+013 1.1568e-002 4.2800e+002 Pm-148m 1.1247e+002 4.1615e+012 1.4965e-003 5.5370e+001 Pm-149 1.8353e+003 6.7908e+013 2.4420e-002 9.0352e+002 Pm-151 6.4370e+002 2.3817e+013 8.5646e-003 3.1689e+002; Pr-143 4.3085e+003 1.5941e+014 5.7325e-002 2.1210e+003 Pr-144 6.6473e+003 2.4595e+014 8.8444e-002 3.2724e+003 Pr-144m 1.4798e+002 5.4751e+012 1.9689e-003 7.2847e+001 Pu-238 5.5482e+001 2.0528e+012 7.3820e-004 2.7313e+001 Pu-239 3.7910e+000 1.4027e+011 5.0440e-005 1.8663e+000 Pu-240 6.3919e+000 2.3650e+011 8.5046e-005 3.1467e+000 Pu-241 1.6098e+003 5.9563e+013 2.1419e-002 7.9249e+002 Pu-243 4.8508e+003 1.7948e+014 6.4541e-002 2.3880e+003 Rb-86 1.1988e+004 4.4354e+014 1.5950e-001 5.9014e+003 Rb-88 9.8337e+006 3.6385e+017 1.3084e+002 4.8411e+006 Rb-89 5.2236e+004 1.9327e+015 6.9501e-001 2.5715e+004 Rh-103m 6.3370e+004 2.3447e+015 8.4315e-001 3.1197e+004 Rh-105 4.6010e+004 1.7024e+015 6.1217e-001 2.2650e+004 Rh-106 6.6779e+004 2.4708e+015 8.8851e-001 3.2875e+004 Ru-103 6.5272e+004 2.4151e+015 8.6846e-001 3.2133e+004 Ru-105 3.9560e+004 1.4637e+015 5.2635e-001 1.9475e+004 Ru-106 3.2470e+004 1.2014e+015 4.3202e-001 1.5985e+004 Sb-124 2.1331e+003 7.8923e+013 2.8381e-002 1.0501e+003 Sb-125 1.7791e+004 6.5827e+014 2.3672e-001 8.7585e+003 Sb-126 1.2274e+003 4.5412e+013 1.6330e-002 6.0422e+002 Sb-127 9.4072e+004 3.4807e+015 1.2516e+000 4.6311e+004 Sb-129 2.0843e+005 7.7119e+015 2.7732e+000 1.0261e+005 Sm-153 1.9698e+003 7.2884e+013 2.6209e-002 9.6973e+002 Sr-89 2.5680e+005 9.5017e+015 3.4168e+000 1.2642e+005 Sr-90 3.6609e+004 1.3545e+015 4.8709e-001 1.8022e+004

?age 3 Attachment 6 to PSL-ENG-SENS-04-037, Rev. 0 MOS File: SL2MS02.MS5 Page 5 of 121 Run Date: January 10, 2003 run Time: 9:52:50 PM Duration: 00:01:06 Nuclide curies becouerels UCi/CM3 Ba/cm3 Sr-91 2.8810e+005 1.0660e+016 3.8332e+000 1.4183e+005 Sr-92 2.3948e+005 8.8609e+015 3.1864e+000 1.1790e+005 Tc-99m 7.9122e+002 2.9275e+013 1.0527e-002 3.8951e+002 Tc-101 6.0828e+004 2.2506e+015 8.0933e-001 2.9945e+004 Te-125m 3.9079e+003 1.4459e+014 5.1995e-002 1.9238e+003 Te-127 9.4091e+004 3.4814e+015 1.2519e+000 4.6320e+004 Te-127m 1.2813e+004 4.7408e+014 1.7048e-001 6.3078e+003 Te-129 2.2842e+005 8.4516e+015 3.0392e+000 1.1245e+005 Te-129m 3.8928e+004 1.4403e+015 5.1794e-001 1.9164e+004 Te-131 7.8343e+004 2.8987e+015 1.0424e+000 3.8568e+004 Te-131m 1.1008e+005 4.0728e+015 1.4646e+000 5.4190e+004 Te-132 1.0483e+006 3.8787e+016 1.3948e+001 5.1608e+005 Te-133 3.4551e+004 1.2784e+015 4.5971e-001 1.7009e+004 Te-133m 1.6931e+005 6.2645e+015 2.2527e+000 8.3351e+004 Te-134 2.6467e+005 9.7926e+015 3.5214e+000 1.3029e+005 Xe-131m 6.5802e+005 2.4347e+016 8.7551e+000 3.2394e+005 Xe-133 1.1429e+008 4.2288e+018 1.5207e+003 5.6266e+007 Xe-133m 3.6359e+006 1.3453e+017 4.8376e+001 1.7899e+006 Xe-135 3.8705e+007 1.4321e+018 5.1498e+002 1.9054e+007 Xe-135m 9.3977e+006 3.4771e+017 1.2504e+002 4.6264e+006 Xe-138 1.1258e+006 4.1654e+016 1.4979e+001 5.5421e+005 Y-90 4.8875e+002 1.8084e+013 6.5029e-003 2.4061e+002 Y-91 3.3807e+003 1.2509e+014 4.4981e-002 1.6643e+003 Y-91m 3.4144e+004 1.2633e+015 4.5429e-001 1.6809e+004 Y-92 1.6424e+004 6.0768e+014 2.1852e-001 8.0854e+003 Y-93 3.7372e+003 1.3828e+014 4.9724e-002 1.8398e+003 Zr-95 4.7773e+003 1.7676e+014 6.3563e-002 2.3518e+003 Zr-97 4.4948e+003 1.6631e+014 5.9804e-002 2.2128e+003 Buildup The material reference is : Shield 3 Integration Parameters Radial 20 Circumferential 20 Y Direction (axial) 40 Results Energy Activity Fluence Rate Fluence Rate Exposure Rate Ex=osure Rate Hey johotons/sec MeV/CM2 L-L= MeV/CM2/sec mR/hr hR/r No Buildup With Buildup No Buildup With Buildun 0.015 6.542e+12 0.OOOe+00 6.578e-24 0.OOOe+00 5.643e-25 0.02 3.314e+14 0.OOOe+00 5.244e-22 0.OOOe+00 1.816e-23 0.03 2.318e+18 1.749e-304 8.109e-18 1.733e-306 8.036e-20 0.04 1.617e+15 1.026e-143 1.500e-20 4.538e-146 6.634e-23 0.05 5.114e+15 3.644e-84 1.551e-19 9.707e-87 4.132e-22 0.06 1.832e+15 2.878e-58 3.988e-19 5.716e-61 7.921e-22 0.08 1.560e+18 9.311e-34 8.083e-16 1.473e-36 1.279e-18 0.1 9.583e+15 1.223e-27 2.294e-17 1.871e-30 3.510e-20 0.15 3.605e+17 2.356e-18 7.144e-15 3.880e-21 1.176e-17 0.2 1.610e+18 1.819e-14 3.356e-11 3.210e-17 5.924e-14

Page  : 4 Attachment 6 to PSL-ENG-SENS-04-037. Rev. 0 DOS File: SL2MS02.MS5 Run Date: January 10, 2003 Page 6 of 121 Run Time: 9:52:50 PM Duration: 00:01:06 Engray Activity Fluence Rate Fluence Rate ExDosure Rate Ex2osure Rate y nphotons/sec 14eV/CM2/sec MeV/CM2L,-= mR/hr mR/hr No Buildup With Buildup No Buiid= With Buildup 0.3 1.255e+17 4.975e-12 6.016e-09 9.438e-15 1.141e-11 0.4 4.805e+17 3.084e-09 2.092e-06 6.010e-12 4.076e-09 0.5 7.836e+17 2.043e-07 8.423e-05 4.01le-10 1.653e-07 0.6 5.816e+17 2.713e-06 7.306e-04 5.295e-09 1.426e-06 0.8 9.840e+17 3.477e-04 4.895e-02 6.614e-07 9.312e-05 1.0 4.334e+17 3.633e-03 3.115e-01 6.697e-06 5.742e-04 1.5 5.020e+17 8.111e-01 3.105e+01 1.365e-03 5.225e-02 2.0 7.534e+17 3.060e+01 7.305e+02 4.733e-02 1.130e+00 3.0 8.388e+16 1.513e+02 2.027e+03 2.052e-01 2.750e+00 4.0 4.018e+14 6.430e+00 6.109e+01 7.955e-03 7.557e-02 5.0 5.217e+14 3.446e+01 2.561e+02 3.950e-02 2.936e-01 TOTALS: 1.060e+19 2.236e+02 3.106e+03 3.014e-01 4.302e+00

Attachment 6 to PSL-ENG-SENS-04-037, Rev. 0 MicroShield v5.05 (5.05-0000)

• Page 7 of 121 Grove Engineering

?age :1 File Ref:

)OS File: SL2MS03.MS5 Date:

Run Date: January 10, 2003 By:

Run Time: 9:57:05 PM Checked:

)uration: 00:01:06 Case

Title:

s12msO3

Description:

St. Lucie Unit 2 LOCA (Containment to CR) - 2.52 h Geometry: 7 - Cylinder Volume - Side Shields Source Dimensions Height 5.3e+3 cm 172 ft 5.0 in Radius 2.le+3 cm 70 ft Dose Points X Y.

1. 1 3.26e+03 cm 1402.08 cm 0 cm 106 ft 10.7 in 46 ft 0.0 in Shields

.5bielcl Nae, %men.1jorl 31teriaO, Periity.

Source 7.52e+10 cm3 Water 0.000598 Shield 1 4.877 cm Iron 7.86 Shield 2 117.043 cm Air 0.00122 Shield 3 91.44 cmConcrete2.35 Transition 545.287 cm Air 0.00122 Shield 5 60.96 cmConcrete2.35 Air Gap Air 0.00122 Source Input Grouping Method : Standard Indices Number of Groups : 25 Lower Energy Cutoff : 0.015 Photons < 0.015 : Excluded Library s Grove nlq)iAet quciizs. beqque~ZeIsL AQi/.nX3 Rq/.cmj .

Am-241 1.4196e-001 5.2526e+009 1.8888e-006 6.9886e-002 Am-242 6.1542e+001 2.2771e+012 8.1883e-004 3.0297e+001 Ba-137m 1.2060e+005 4.4621e+015 1.6046e+000 5.9369e+004 Ba-139 2.4246e+004 8.9710e+014 3.2260e-001 1.1936e+004 Ba-140 8.2532e+004 3.0537e+015 1.0981e+000 4; 0630e+004 Ba-141 2.5207e+002 9.3266e+012 3.3538e-003 1.2409e+002 Br-82 7.0947e+003 2.6250e+014 9.4396e-002 3.4927e+003 Br-83 4.9154e+004 1.8187e+015 6.5400e-001 2.4198e+004 Br-84 6.4479e+003 2.3857e+014 8.5791e-002 3.1743e+003 Ce-141 1.9914e+003 7.3680e+013 2.6495e-002 9.8033e+002 Ce-143 1.7223e+003 6.3724e+013 2.2915e-002 8.4787e+002 Ce-144 1.6741e+003 6.1943e+013 2.2275e-002 8.2417e+002 Cm-242 4.6141e+001 1.7072e+012 6.1392e-004 2.2715e+001 Cm-244 6.9422e+000 2.5686e+011 9.2367e-005 3.4176e+000 Cs-134 2.2079e+005 8.1692e+015 2.9377e+000 1.0869e+005 Cs-134m 2.7112e+004 1.0031e+015 3.6073e-001 1.3347e+004 Cs-136 5.9133e+004 2.1879e+015 7.8678e-001 2.9111e+004 Cs-137 1.0879e+005 4.0253e+015 1.4475e+000 5.3557e+004 Cs-138! 1.2366e+005 4.5755e+015 1.6453e+000 6.0878e+004 Eu-154 1.0588e+001 3.9175e+0l1 1.4087e-004 5.2123e+000 Eu-155 7.1728e+000 2.6539e+011 9.5436e-005 3.5311e+000

Page  : 2 Attachment 6 to PSL-ENG-SENS-04-037, Rev. 0

)OS File: SL2MS03.MS5 Page 8 of 121 Run Date: January 10, 2003 run Time: 9:57:05 PM Duration: 00:01:06 Nuclide cur~ies becouerels uCi/cm3- Bcq/CM3 Eu-156 1.8680e+002 6.9117e+012 2.4854e-003 9.1961e+001 1-130 4.7593e+004 1.7609e+015 6.3323e-001 2.3430e+004 1-131 9.0478e+005 3.3477e+016 1.2038e+001 4.4542e+005 1-132 9.7342e+005 3.6017e+016 1.2952e+001 4.7921e+005 I-133 1.6456e+006 6.0885e+016 2.1894e+001 8.1009e+005 1-134 4.6289e+005 1.7127e+016 6.1588e+000 2.2788e+005 1-135 1.2701e+006 4.6993e+016 1.6899e+001 6.2525e+005 Kr-83m 5.6871e+006 2.1042e+017 7.5668e+001 2.7997e+006 Kr-85 1.1533e+006 4.2674e+016 1.5345e+001 5.6778e+005 Kr-85m 1.2094e+007 4.4748e+017 1.6091e+002 5.9538e+006 Kr-87 8.5805e+006 3.1748e+017 1.1417e+002 4.;2241e+006 Kr-88 2.5719e+007 9.5160e+017 3.4220e+002 1.2661e+007 La-140 2.4027e+003 8.8899e+013 3.1968e-002 1.1828e+003 La-141 8.0376e+002 2.9739e+013 1.0694e-002 3.9569e+002 La-142 2.4333e+002 9.0032e+012 3.2376e-003 1.1979e+002 Mo-99 1.1276e+004 4.1723e+014 1.5003e-001 5.5513e+003 Nb-95 8.0432e+002 2.9760e+013 1.0702e-002 3.9596e+002 Nb-95m 5.6776e+000 2.1007e+011 7.5542e-005 2.7950e+000 Nb-97 2.1851e+002 8.0847e+012 2.9073e-003 1.0757e+002 Nd-147 3.1548e+002 1.1673e+013 4.1975e-003 1.5531e+002 Np-238 8.7748e+002 3.2467e+013 1.1675e-002 4.3198e+002 Np-239 3.1322e+004 1.1589e+015 4.1675e-001 1.5420e+004 Pd-109 2.7286e+003 1.0096e+014 3.6305e-002 1.3433e+003 Pm-147 7.8276e+001 2.8962e+012 1.0415e-003 3.8535e+001 Pm-148 1.4395e+002 5.3261e+012 1.9153e-003 7.0865e+001 Pm-148m 1.8710e+001 6.9228e+011 2.4895e-004 9.2110e+000 Pm-149 3.0150e+002 1.1156e+013 4.0115e-003 1.4843e+002 Pm-151 1.0453e+002 3.8674e+012 1.3907e-003 5.1457e+001 Pr-143 7.1905e+002 2.6605e+013 9.5671e-003 3.5398e+002 Pr-144 1.6217e+003 6.0003e+013 2.1577e-002 7.9835e+002 Pr-144m 3.1459e+001 1.1640e+012 4.1857e-004 1.5487e+001 Pu-238 9.2372e+000 3.4178e+011 1.2290e-004 4.5474e+000 Pu-239 6.3120e-001 2.3354e+010 8.3982e-006 3.1074e-001 Pu-240 1.0641e+000 3.9372e+010 1.4158e-005 5.2385e-001 Pu-241 2.6800e+002 9.9159e+012 3.5657e-003 1.3193e+002 Pu-243 7.0016e+002 2.5906e+013 9.3158e-003 3.4468e+002 Rb-86 1.9817e+003 7.3324e+013 2.6367e-002 9.7559e+002 Rb-88 1.0541e+007 3.9002e+017 1.4025e+002 5.1894e+006 Rb-89 5.3078e+002 1.9639e+013. 7.0621e-003 2.6130e+002 Rh-103m 1.0740e+004 3.9738e+014 1.4290e-001 5.2872e+003 Rh-105 7.6284e+003 2.8225e+014 1.0150e-001 3.7554e+003 Rh-106 1.1116e+004 4.113Oe+014 1.4790e-001 5.4724e+003 Ru-103 1.0858e+004 4.0175e+014 1.4447e-001 5.3454e+003 Ru-105 5.6163e+003 2.0780e+014 7.4726e-002 2.7649e+003 Ru-106 5.4051e+003 1.9999e+014 7.1916e-002 2.6609e+003 Sb-124 3.5493e+002 1.3132e+013 4.7224e-003 1.7473e+002 Sb-125 2.9616e+003 1.0958e+014 3.9405e-002 1.4580e+003 Sb-126 2.0384e+002 7.5420e+012 2.7121e-003 1.0035e+002 Sb-127 1.5541e+004 5.7502e+014 2.0678e-001 7.6508e+003 Sb-129 2.9460e+004 1.0900e+015 3.9197e-001 1.4503e+004 Sm-153 3.2300e+002 1.1951e+013 4.2976e-003 1.5901e+002 Sr-89 4.2727e+004 1.5809e+015 5.6849e-001 2.1034e+004 Sr-90 6.0945e+003 2.2550e+014 8.1089e-002 3.0003e+003

?age 3

)OS File: SL2MS03.MS5 Attachment 6 to PSL-ENG-SENS-04-037, Rev. 0 Page 9 of 121 tun Date: January 10, 2003 Run Time: 9:57:05 PM 2uration: 00:01:06 Suclide curies becouerels Ui/cm.3 Ba/_cm3 Sr-91 4.4521e+004 1.6473e+015 5.9236e-001 2.1917e+004 Sr-92 3.0713e+004 1.1364e+015 4.0864e-001 1.5120e+004 Tc-99m 6.6413e+000 2.4573e+011 8.8364e-005 3.2695e+000 Tc-101 1.0106e+004 3.7392e+014 1.3446e-001 4.9751e+003 Te-125m 6.5059e+002 2.4072e+013 8.6562e-003 3.2028e+002 Te-127 1.5612e+004 5.7763e+014 2.0772e-001 7.6855e+003 Te-127m 2.1332e+003 7.8930e+013 2.8383e-002 1.0502e+003 Te-129 3.3899e+004 1.2543e+015 4.5103e-001 1.6688e+004 Te-129m 6.4812e+003 2.3980e+014 8.6234e-002 3.1906e+003 Te-131 5.7175e+003 2.1155e+014 7.6072e-002 2.8147e+003 Te-131m 1.7898e+004 6.6223e+014 2.3814e-001 8.8111e+003 Te-132 1.7295e+005 6.3990e+015 2.3011e+000 8.5140e+004 Te-133 2.3001e+003 8.5104e+013 3.0604e-002 1.1323e+003 Te-133m 1.3107e+004 4.8494e+014 1.7439e-001 6.4523e+003 Te-134 1.5970e+004 5.9090e+014 2.1249e-001 7.8621e+003 Xe-131m 8.5744e+005 3.1725e+016 1.1408e+001 4.2211e+005 Xe-133 1.4869e+008 5.5016e+018 1.9784e+003 7.3199e+007 Xe-133m 4.7073e+006 1.7417e+017 6.2632e+001 2.3174e+006 Xe-135 5.1017e+007 1.8876e+018 6.7879e+002 2.5115e+007 Xe-135m 7.5525e+006 2.7944e+017 1.0049e+002 3.7180e+006 Xe-138 7.3592e+004 2.7229e+015 9.7916e-001 3.6229e+004 Y-90 1.3504e+002 4.9964e+012 1.7967e-003 6.6478e+001 Y-91 5.7520e+002 2.1282e+013 7.6532e-003 2.8317e+002 Y-91m 1.5967e+004 5.9076e+014 2.1244e-001 7.8602e+003 Y-92 7.3557e+003 2.7216e+014 9.7869e-002 3.6212e+003 Y-93 5.8009e+002 2.1463e+013 7.7182e-003 2.8557e+002 Zr-95 7.9495e+002 2.9413e+013 1.0577e-002 3.9135e+002 Zr-97 7.1763e+002 2.6552e+013 9.5482e-003 3.5328e+002 Buildup The material reference is : Shield 3 Integration Parameters Radial 20 Circumferential 20 Y Direction (axial) 40 Results Eneray Activitv Fluence Rate Fluence Rate Exposure Rate Exposure Rate MeVX 'hotons/sec MeV/Cm2/se MeV/CMLm!J= mR/hr mR/hr No Buildup) With BuilduD No Buildup With Buildun 0.015 2.810e+12 0.OOOe+00 2.826e-24 0.OOOe+00 2.424e-25 0.02 5.500e+13 0.OOOe+00 8.703e-23 0.OOOe+00 3.015e-24 0.03 2.917e+18 2.201e-304 1.021e-17 2.181e-306 1.Olle-19 0.04 2.546e+14 1.616e-144 2.363e-21 7.147e-147 1.045e-23 0.05 8.436e+14 6.011e-85 2.559e-20 1.601e-87 6.817e-23 0.06 3.024e+14 4.752e-59 6.584e-20 9.438e-62 1.308e-22 0.08 2.020e+18 1.205e-33 1.046e-15 1.908e-36 1.656e-18 0.1 3.086e+15 3.938e-28 7.388e-18 6.025e-31 1.130e-20 0.15 3.761e+17 2.458e-18 7.453e-15 4.047e-21 1.227e-17 0.2 1.977e+18 2.233e-14 4.121e-11 3.941e-17 7.273e-14

?age  : 4 Attachment 6 to PSL-ENG-SENS-04-037, Rev. 0

)OS File: SL2MS03.MS5 Page 10 of 121 tun Date: January 10, 2003 run Time: 9:57:05 PM

)uration: 00:01:06 Enerovy Activity Fluence Rate Fluence Rate ExMosure Rate Exposure Rate MeV photons/sec MeV/CM2L-sec MeV/CM2 Lse mR/hr mR/hr No Build= With Buildup No-Buildu= With Buildu, 0.3 7.387e+16 2.928e-12 3.541e-09 5.555e-15 6.716e-12 0.4 2.320e+17 1.489e-09 1.010e-06 2.901e-12 1.968e-09 0.5 3.079e+17 8.028e-08 3.309e-05 1.576e-10 6.496e-08 0.6 1.403e+17 6.542e-07 1.762e-04 1.277e-09 3.440e-07 0.8 3.064e+17 1.083e-04 1.524e-02 2.059e-07 2.899e-05 1.0 1.236e+17 1.036e-03 8.885e-02 1.910e-06 1.638e-04 1.5 2.249e+17 3.634e-01 1.391e+01 6.113e-04 2.341e-02 2.0 6.850e+17 2.783e+01 6.642e+02 4.303e-02 1.027e+00 3.0 6.321e+16 1.140e+02 1.528e+03 1.546e-01 2.072e+00 4.0 1.754e+13 2.807e-01 2.666e+00 3.472e-04 3.298e-03 5.0 5.592e+14 3.694e+01 2.745e+02 4.235e-02 3.147e-01 TOTALS: 9.452e+18 1.794e+02 2.483e+03 2.410e-01 3.441e+00

Attachment 6 to PSL-ENG-SENS-04-037, Rev. 0 MicroShield v5.05 (5.05-0000) Page 11 of 121 Grove Engineering Page 1 File Ref:

DOS File: SL2MS04.MS5 Date:

Run Date: January 10, 2003 By:

.Run Time: 9:59:23 PM Checked:

Duration: 00:01:06 Case

Title:

sl2ms04

Description:

St. Lucie Unit 2 LOCA (Containment to CR) - 8 h Geometry: 7 - Cylinder Volume - Side Shields Source Dimensions Height 5.3e+3 cm 172 ft 5.0 in Radius 2.le+3 cm 70 ft Dose Points Y. 7

1. 1 3.26e+03 cm 1402.08 cm 0 cm 106 ft 10.7 in 46 ft 0.0 in Shields Shieqxdj..namet IDimqnS~io.r 144tpr~ia~l IDn-%tY.

Source 7.52e+10 cm3 Water 0.000598 Shield 1 4.877 cm Iron 7.86 Shield 2 117.043 cm Air 0.00122 Shield 3 91.44 cmConcrete2.35 Transition 545.287 cm Air 0.00122 Shield 5 60.96 cmConcrete2.35 Air Gap Air 0.00122 Source Input Grouping Method : Standard Indices Number of Groups : 25 Lower Energy Cutoff : 0.015 Photons < 0.015 : Excluded Library : Grove gq/.cnm 3.

1itiqcliAe. qwrLe.s.

Am-241 1.2193e-002 4.5114e+008 1.6223e-007 6.0025e-003 Am-242 4.1620e+000 1.5399e+011 5.5376e-005 2.0489e+000 Ba-137m 1.0340e+004 3.8257e+014 1.3757e-001 5.0901e+003 Ba-139 1.3211e+002 4.8879e+012 1.7577e-003 6.5035e+001 Ba-140 6.9875e+003 2.5854e+014 9.2970e-002 3.4399e+003 Ba-141 8.2615e-005 3.0568e+006 1.0992e-009 4.0671e-005 Br-82 8.3806e+002 3.1008e+013 1.1151e-002 4.1257e+002 Br-83 1.3195e+003 4.8821e+013 1.7556e-002 6.4957e+002 Br-84 6.5457e-001 2.4219e+010 8.7092e-006 3.2224e-001 Ce-141 1.7010e+002 6.2938e+012 2.2633e-003 8.3740e+001 Ce-143 1.3159e+002 4.8686e+012 1.7508e-003 6.4778e+001 Ce-144 1.4344e+002 5.3072e+012 1.9085e-003 7.0614e+001 Cm-242 3.9553e+000 1.4635e+011 5.2626e-005 1.9472e+000 Cm-244 5.9510e-001 2.2019e+010 7.9179e-006 2.9296e-001 Cs-134 1.8926e+004 7.0024e+014 2.5181e-001 9.3169e+003 Cs-134m 6.2732e+002 2.3211e+013 8.3466e-003 3.0882e+002 Cs-136 5.0090e+003 1.8533e+014 6.6646e-002 2.4659e+003 Cs-137 9.3274e+003 3.4511e+014 1.2410e-001 4.5918e+003 Cs-138 1.4169e+001 5.2423e+011 1.8851e-004 6.9750e+000 Eu-154 9.0759e-001 3.3581e+010 1.2076e-005 4.4680e-001 Eu-155 6.1482e-001 2.2748e+010 8.1803e-006 3.0267e-001

'age  : 2

)OS File: SL2MS04.MS5 Attachment 6 to PSL-ENG-SENS-04-037, Rev. 0 Page 12 of 121 tun Date: January 10, 2003 tun Time: 9:59:23 PM

)uration: 00:01:06 Nucl-ide culries becauergla Ba/cm3 Eu-156 1.5848e+001 5.8637e+011 2.1086e-004 7.8018e+000 1-130 4.6040e+003 1.7035e+014 6.1258e-002 2.2665e+003 I-131 1.1674e+005 4.3193e+015 1.5532e+000 5.7469e+004 I-132 3.9390e+004 1.4574e+015 5.2409e-001 1.9391e+004 I-133 1.8040e+005 6.6747e+015 2.4002e+000 8.8808e+004 1-134 8.6507e+002 3.2008e+013 1.1510e-002 4.2587e+002 1-135 9.4044e+004 3.4796e+015 1.2513e+000 4.6297e+004 Kr-83m 1.2738e+006 4.7130e+016 1.6948e+001 6.2707e+005 Kr-85 1.1532e+006 4.2668e+016 1.5344e+001 5.6771e+005 Kr-85m 5.1793e+006 1.9163e+017 6.8912e+001 2.5497e+006 Kr-87 4.3274e+005 1.6011e+016 5.7577e+000 2.1304e+005 Kr-88 6.7505e+006 2.4977e+017 8.9817e+001 3.3232e+006 La-140 8.2049e+002 3.0358e+013 1.0917e-002 4.0392e+002 La-141 2.6928e+001 9.9635e+011 3.5829e-004 1.3257e+001 La-142 1.7752e+000 6.5683e+010 2.3620e-005 8.7392e-001 Mo-99 9.1259e+002 3.3766e+013 1.2142e-002 4.4926e+002 Nb-95 6.8945e+001 2.5510e+012 9.1733e-004 3.3941e+001 Nb-95m 4.8626e-001 1.7992e+010 6.4698e-006 2.3938e-001 Nb-97 3.4640e+000 1.2817e+011 4.6089e-005 1.7053e+000 Nd-147 2.6657e+001 9.8632e+011 3.5468e-004 1.3123e+001 Np-238 6.9802e+001 2.5827e+012 9.2873e-004 3.4363e+001 Np-239 2.5105e+003 9.2887e+013 3.3402e-002 1.2359e+003 Pd-109 1.7627e+002 6.5220e+012 2.3453e-003 8.6776e+001 Pm-147 6.7134e+000 2.4840e+011 8.9323e-005 3.3050e+000 Pm-148 1.1984e+001 4.4339e+011 1.5944e-004 5.8994e+000 Pm-148m 1.5978e+000 5.9119e+010 2.1259e-005 7.8659e-001 Pm-149 2.4060e+001 8.9023e+011 3.2013e-004 1.1845e+001 Pm-151 7.8385e+000 2.9002e+011 1.0429e-004 3.8588e+000 Pr-143 6.2543e+001 2.3141e+012 8.3215e-004 3.0789e+001 Pr-144 1.4692e+002 5.4359e+012 1.9548e-003 7.2326e+001 Pr-144m 2.7035e+000 1.0003e+011 3.5971e-005 1.3309e+000 Pu-238 7.9222e-001 2.9312e+010 1.0541e-005 3.9000e-001 Pu-239 5.4156e-002 2.0038e+009 7.2056e-007 2.6661e-002 Pu-240 9.1218e-002 3.3751e÷009 1.2137e-006 4.4906e-002 Pu-2 41 2.2973e+001 8.5000e+011 3.0566e-004 1.1309e+001 Pu-243 2.7890e+001 1.0319e+012 3.7108e-004 1.3730e+001 Rb-86 1.6847e+002 6.2335e+012 2.2416e-003 8.2938e+001 Rb-88 6.3251e+006 2.3403e+017 8.4157e+001 3.1138e+006 Rb-89 1.4007e-005 5.1826e+005 1.8637e-010 6.8955e-006 Rh-103m 9.3180e+002 3.4477e+013 1.2398e-002 4.5872e+002 Rh-105 6.2003e+002 2.2941e+013 8.2496e-003 3.0524e+002 Rh-106 9.5251e+002 3.5243e+013 1.2673e-002 4.6891e+002 Ru-103 9.2706e+002 3.4301e+013 1.2335e-002 4.5638e+002 Ru-105 2.0465e+002 7.5720e+012 2.7229e-003 1.0075e+002 Ru-106 4.6315e+002 1.7136e+013 6.1623e-003 2.2800e+002 Sb-124 3.0346e+001 1.1228e+012 4.0376e-004 1.4939e+001 Sb-125 2.5384e+002 9.3922e+012 3.3774e-003 1.2497e+002 Sb-126 1.7252e+001 6.3834e+011 2.2955e-004 8.4932e+000 Sb-127 1.2786e+003 4.7309e+013 1.7012e-002 6.2946e+002 Sb-129 1.0483e+003 3.8785e+013 1.3947e-002 5.1605e+002 Sm-153 2.5526e+001 9.4448e+011 3.3963e-004 1.2566e+001 Sr-89 3.6512e+003 1.3509e+014 4.8580e-002 1.7975e+003 Sr-90 5.2243e+002 1.9330e+013 6.9511e-003 2.5719e+002

Page 3 SL2MS04.MS5 Attachment 6 to PSL-ENG-SENS-04-037. Rev. 0 DOS File: Page 13 of 121 Run Date: January 10, 2003 Run Time: 9:59:23 PM Duration: 00:01:06 Nuclide curies beccruergla UCiLCm3 Ba/cm3 Sr-91 2.5587e+003 9.4673e+013 3.4044e-002 1.2596e+003 Sr-92 6.4818e+002 2.3983e+013 8.6242e-003 3.1909e+002 Tc-99m 6.0957e-008 2.2554e+003 8.1105e-013 3.0009e-008 Tc-101 8.4528e+002 3.1275e+013 1.1247e-002 4.1613e+002 Te-125m 5.5776e+001 2.0637e+012 7.4211e-004 2.7458e+001 Te-127 1.3100e+003 4.8470e+013 1.7430e-002 6.4490e+002 Te-127m 1.8293e+002 6.7685e+012 2.4339e-003 9.0056e+001 Te-129 1.4746e+003 5.4561e+013 1.9620e-002 7;.2595e+002 Te-129m 5.5475e+002 2.0526e+013 7.3811e-003 2.7310e+002 Te-131 3.0943e+002 1.1449e+013 4.1171e-003 1.5233e+002 Te-131m 1.3518e+003 5.0018e+013 1.7986e-002 6.6550e+002 Te-132 1.4123e+004 5.2254e+014 1.8790e-001 6.9525e+003 Te-133 3.1837e+000 1.1780e+011 4.2360e-005 1.5673e+000 Te-133m 1.8364e+001 6.7946e+011 2.4433e-004 9.0404e+000 Te-134 5.8680e+000 2.1712e+011 7.8075e-005 2.8888e+000 Xe-131m 8.5045e+005 3.1467e+016 1.1315e+001 4.1867e+005 Xe-133 1.4585e+008 5.3966e+018 1.9406e+003 7.1802e+007 Xe-133m 4.4810e+006 1.6580e+017 5.9621e+001 2.2060e+006 Xe-135 4.4624e+007 1.6511e+018 5.9373e+002 2.1968e+007 Xe-135m 3.9832e+006 1.4738e+017 5.2997e+001 1.9609e+006 Xe-138 7.6153e-003 2.8177e+008 1.0132e-007 3.7490e-003 Y-90 4.1023e+001 1.5179e+012 5.4582e-004 2.0195e+001 Y-91 5.7525e+001 2.1284e+012 7.6538e-004 2.8319e+001 Y-91m 1.6230e+003 6.0050e+013 2.1594e-002 7.9898e+002 Y-92 1.0409e+003 3.8513e+013 1.3849e-002 5.1243e+002 Y-93 3.4140e+001 1.2632e+012 4.5424e-004 1.6807e+001 Zr-95 6.7977e+001 2.5151e+012 9.0445e-004 3.3465e+001 Zr-97 4.9134e+001 1.8180e+012 6.5374e-004 2.4188e+001 Buildup The material reference is : Shield 3 Integration Parameters Radial 20 Circumferential 20 Y Direction (axial) 40 Results Enerov Activity Fluence Rate Fluence Rate ExDosure Rate Exposure Rate MeV photons/sec MeV/Lcm eL= MeV/CM2/sec mR/hr mE/hr No-Buildup With Buildup No Buildup With Buildup 0.015 2.825e+11 0.OOOe+00 2.841e-25 0.000e+00 2.436e-26 0.02 4.606e+12 0.OOOe+00 7.287e-24 0.OOOe+00 2.524e-25 0.03 2.809e+18 2.119e-304 9.827e-18 2.100e-306 9.740e-20 0.04 2.007e+13 1.274e-145 1.862e-22 5.633e-148 8.235e-25 0.05 6.889e+13 4.909e-86 2.090e-21 1.308e-88 5.566e-24 0.06 2.547e+13 4.002e-60 5.545e-21 7.948e-63 1.lOle-23 0.08 1.981e+18 1.182e-33 1.026e-15 1.870e-36 1.623e-18 0.1 5.856e+14 7.474e-29 1.402e-18 1.143e-31 2.145e-21 0.15 1.580e+17 1.033e-18 3.132e-15 1.701e-21 5.158e-18 0.2 1.571e+18 1.775e-14 3.275e-11 3.132e-17 5.781e-14

)age 4

)OS File: SL2MS04.MS5 Attachment 6 to PSL-ENG-SENS-04-437, Rev. 0 tun Date: January 10, 2003 Page 14 of 121 tun Time: 9:59:23 PM uration: 00:01:06 EnerMY Activity Fluence Rate Fluence Rate Exposure Rate Exposure Rate MeV photons/sec MeV/CM2/9_ee MeV/CM2/sec mR/hr mR/hr No puildup With Buildup No Bu i du With Buildup 0.3 2.812e+16 1.115e-12 1.348e-09 2.115e-15 2.557e-12 0.4 2.886e+16 1.853e-10 1.257e-07 3.610e-13 2.448e-10 0.5 1.283e+17 3.344e-08 1.379e-05 6.565e-11 2.706e-08 0.6 5.601e+16 2.612e-07 7.037e-05 5.099e-10 1.374e-07 0.8 7.378e+16 2.607e-05 3.670e-03 4.958e-08 6.981e-06 1.0 2.224e+16 1.865e-04 1.599e-02 3.437e-07 2.947e-05 1.5 4.943e+16 7.986e-02 3.058e+00 1.344e-04 5.145e-03 2.0 2.047e+17 8.313e+00 1.984e+02 1.286e-02 3.069e-01 3.0 1.080e+16 1.948e+01 2.611e+02 2.643e-02 3.542e-01 4.0 3.458e+09 5.533e-05 5.257e-04 6.846e-08 6.503e-07 5.0 3.356e+14 2.216e+01 1.647e+02 2.541e-02 1.888e-01 TOTALS: 7.122e+18 5.004e+01 6.273e+02 6.483e-02 8.55le-01

microShield v5.05 (5.05-0000) Attachment 6 to PSL-ENG-SENS-04-037, Rev. 0 Grove Engineering Page  : 1 File Ref:

DOS File: SL2MS05.MS5 Date: _

Run Date: January 10, 2003 By:

Run Time: 10:01:39 PM Checked:

Duration: 00:01:06 Case

Title:

sl2msO5

Description:

St. Lucie Unit 2 LOCA (Containment to CR) - 24 h Geometry: 7 - Cylinder Volume - Side Shields Source Dimensions Height 5.3e+3 cm 172 ft 5.0 in Radius 2.le+3 cm 70 ft Dose Points X Y. 7

1. 1 3.26e+03 cm 1402.08 cm 0 cm 106 ft 10.7 in 46 ft 0.0 in Shields S.bleld .19et DImeQQS~iiQA 11teriz, penAity.

Source 7.52e+10 cm 3 Water 0.000598 Shield 1 4.877 cm Iron 7.86 Shield 2 117.043 cm Air 0.00122 Shield 3 91.44 cmConcrete2.35 Transition 545.287 cm Air 0.00122 Shield 5 60.96 cmConcrete2.35 Air Gap Air 0.00122 Source Input Grouping Method : Standard Indices Number of Groups : 25 Lower Energy Cutoff : 0.015 Photons < 0.015 : Excluded Library : Grove Acq.-22 qmr~ie~s. bqqqqxegqls gWi/.c. ]q/. qrq3.

Ac-225 8.9935e-023 3.3276e-012 1.1966e-027 4.4274e-023 Ac-227 Ac-228 9.6747e-024 3.5797e-013 1.2872e-028 4.7628e-024 Ag-109m 7.7319e+001 2.8608e+012 1.0287e-003 3.8064e+001 Am-241 1.2260e-002 4.5362e+008 1.6312e-007 6.0356e-003 Am-242 2.0828e+000 7.7064e+010 2.7712e-005 1.0253e+000 Am-243 1.9086e-006 7.0619e+004 2.5395e-011 9.3961e-007 At-217 Ba-137m 8.8234e+003 3.2646e+014 1.1740e-001 4.3437e+003 Ba-139 4.3987e-002 1.6275e+009 5.8525e-007 2.1654e-002 Ba-140 6.7395e+003 2.4936e+014 8.9671e-002 3.3178e+003 Ba-141 1.2572e-020 4.6515e-010 1.6727e-025 6.1889e-021 Bi-210 4.0617e-021 1.5028e-010 5.4042e-026 1.9996e-021 Bi-211 6.9148e-025 2.5585e-014 9.2003e-030 3.4041e-025 Bi-212 1.8106e-023 6.6993e-013 2.4091e-028 8.9135e-024 Bi-213 1.3713e-020 5.0737e-010 1.8245e-025 6.7506e-021 Bi-214 1.0371e-023 3.8374e-013 1.3799e-028 5.1057e-024 Br-82 6.1211e+002 2.2648e+013 8.1443e-003 3.0134e+002 Br-83 1.2739e+001 4.7135e+011 1.6950e-004 6.2714e+000 Br-84 5.3488e-010 1.9791e+001 7.1167e-015 2.6332e-010 Ce-141 1.6783e+002 6.2096e+012 2.2330e-003 8.2621e+001

Page 2 DOS File: SL2MS05.MS5 Attachment 6 to PSL-ENG-SENS-04-037, Rev. 0 Page 16 of 121 Run Date: January 10, 2003 Run Time: 10:01:39 PM Duration: 00:01:06 Nuclide becauerels "Ci/CM3 Ce-143 9.4027e+001 3.4790e+012 1.2510e-003 4.6289e+001 Ce-144 1.4321e+002 5.2986e+012 1.9054e-003 7.0499e+001 Cm-242 3.9511e+000 1.4619e+011 5.2571e-005 1.9451e+000 Cm-244 5.9506e-001 2.2017e+010 7.9174e-006 2.9294e-001 Cs-134 1.8914e+004 6.9982e+014 2.5165e-001 9.3112e+003 Cs-134m 1.3697e+001 5.0680e+011 1.8224e-004 6.7431e+000 Cs-135 1.4243e-002 5.2698e+008 1.8950e-007 7.0115e-003 Cs-136 4.8362e+003 1.7894e+014 6.4346e-002 2.3808e+003 Cs-137 9.3270e+003 3.4510e+014 1.2410e-001 4.5916e+003 Cs-138 1.5021e-008 5.5578e+002 1.9986e-013 7.3947e-009 Eu-154 9.0746e-001 3.3576e+010 1.2074e-005 4.4674e-001 Eu-155 6.1466e-001 2.2743e+010 8.1782e-006 3.0259e-001 Eu-156 1.5373e+001 5.6880e+011 2.0454e-004 7.5680e+000 Fr-221 3.5116e-020 1.2993e-009 4.6722e-025 1.7287e-020 Fr-223 I-129 7.8863e-008 2.9179e+003 1.0493e-012 3.8824e-008 I-130 1.8770e+003 6.9448e+013 2.4973e-002 9.2402e+002 I-131 1.1028e+005 4.0804e+015 1.4673e+000 5.4290e+004 I-132 1.2827e+004 4.7459e+014 1.7066e-001 6.3145e+003 1-133 1.0584e+005 3.9163e+015 1.4083e+000 5.2107e+004 I-134 2.8431e-003 1.0520e+008 3.7829e-008 1.3997e-003 I-135 1.7566e+004 6.4993e+014 2.3372e-001 8.6475e+003 Kr-83m 3.0138e+003 1.1151e+014 4.010Oe-002 1.4837e+003 Kr-85 1.1531e+006 4.2665e+016 1.5342e+001 5.6767e+005 Kr-85m 4.3568e+005 1.6120e+016 5.7968e+000 2.1448e+005 Kr-87 7.0582e+001 2.6115e+012 9.3911e-004 3.4747e+001 Kr-88 1.3595e+005 5.0303e+015 1.8089e+000 6.6929e+004 La-140 2.2753e+003 8.4184e+013 3.0273e-002 1.1201e+003 La-141 1.6134e+000 5.9697e+010 2.1467e-005 7;9429e-001 La-142 1.6597e-003 6.1407e+007 2.2082e-008 8.1703e-004 Mo-99 7.7147e+002 2.8545e+013 1.0265e-002 3.7979e+002 Nb-93m 8.7559e-013 3.2397e-002 1.1650e-017 4.3105e-013 Nb-95 6.8928e+001 2.5503e+012 9.1710e-004 3.3933e+001 Nb-95m 4.9294e-001 1.8239e+010 6.5587e-006 2.4267e-001 Nb-97 2.7463e+001 1.0161e+012 3.6540e-004 1.3520e+001 Nb-97m 2.4164e+001 8.9406e+011 3.2150e-004 1.1896e+001 Nd-147 2.5559e+001 9.4567e+011 3.4006e-004 1.2582e+001 Np-237 7.2394e-012 2.6786e-001 9.6321e-017 3.5639e-012 Np-238 5.6114e+001 2.0762e+012 7.4661e-004 2.7624e+001 Np-239 2.0632e+003 7.6338e+013 2.7451e-002 1.0157e+003 Pa-231 1.3424e-026 4.9668e-016 1.7861e-031 6.6084e-027 Pa-233 6.1511e-014 2.2759e-003 8.1841e-019 3.0281e-014 Pa-234 9.2905e-028 3.4375e-017 1.2361e-032 4.5736e-028 Pa-234m 1.8425e-024 6.8172e-014 2.4515e-029 9.0705e-025 Pb-209 2.4618e-025 9.1O085e-015 3.2754e-030 1.2119e-025 Pb-210 1.5389e-021 5.6941e-011 2.0476e-026 7.5761e-022 Pb-211 4.5539e-028 1.6849e-017 6.0590e-033 2.2418e-028 Pb-212 1.6254e-023 6.0139e-013 2.1626e-028 8.0017e-024 Pb-214 3.8239e-020 1.4149e-009 5.0878e-025 1.8825e-020 Pd-109 7.7295e+001 2.8599e+012 1.0284e-003 3.8052e+001 Pm-147 6.7227e+000 2.4874e+011 8.9448e-005 3.3096e+000 Pm-148 1.lOOle+001 4.0703e+011 1.4637e-004 5.4157e+000 Pm-148m 1.5800e+000 5.8461e+010 2.1023e-005 7.7784e-001

Page 3 Attachment 6 to PSL-ENG-SENS-04-037, Rev. 0 DOS File: SL2MS05.MS5 Page 17 of 121 Run Date: January 10, 2003 Run Time: 10:01:39 PM Duration: 00:01:06 Nuclide curies becqruerels UCi /cm3 B/cm3e Pm-149 1.9524e+001 7.2237e+011 2.5977e-004 9.6113e+000 Pm-151 5.3044e+000 1.9626e+011 7.0576e-005 2.6113e+000 Po-210 1.7622e-021 6.5201e-011 2.3446e-026 8.6752e-022 Po-211 1.0181e-030 3.7671e-020 1.3547e-035 5.0122e-031 Po-212 1.1601e-023 4.2922e-013 1.5435e-028 5.7109e-024 Po-213 1.3416e-020 4.9641e-010 1.7851e-025 6.6048e-021 Po-214 5.4164e-022 2.0041e-011 7.2066e-027 2.6664e-022 Po-215 2.0203e-028 7.4751e-018 2.6881e-033 9.9458e-029 Po-216 1.9547e-023 7.2323e-013 2.6007e-028 9.6227e-024 Po-218 6.7473e-020 2.4965e-009 8.9774e-025 3.3216e-020 Pr-143 6.4188e+001 2.3750e+012 8.5404e-004 3.1599e+001 Pr-144 1.4321e+002 5.2988e+012 1.9055e-003 7.0502e+001 Pr-144m 2.0479e+000 7.5772e+010 2.7247e-005 1.0082e+000 Pu-238 7.9317e-001 2.9347e+010 1.0553e-005 3.9047e-001 Pu-239 5.4275e-002 2.0082e+009 7.2215e-007 2.6719e-002 Pu-240 9.1218e-002 3.3751e+009 1.2137e-006 4.4906e-002 Pu-241 2.2971e+001 8.4993e+011 3.0563e-004 1.1308e+001 Pu-242 1.7492e-009 6.4721e+001 2.3274e-014 8.6113e-010 Pu-243 2.9758e+000 1.lOlOe+011 3.9593e-005 1.4650e+000 Ra-223 1.3619e-029 5.0390e-019 1.8120e-034 6.7045e-030 Ra-224 7.2100e-024 2.6677e-013 9.5931e-029 3.5495e-024 Ra-225 1.1332e-020 4.1930e-010 1.5078e-025 5.5789e-021 Ra-226 6.5721e-021 2.4317e-010 8.7444e-026 3.2354e-021 Ra-228 1.5359e-024 5.6829e-014 2.0436e-029 7.5612e-025 Rb-86 1.6435e+002 6.0811e+012 2.1868e-003 8.0910e+001 Rb-87 1.3270e-009 4.9099e+001 1.7656e-014 6.5327e-010 Rb-88 1.5181e+005 5.6171e+015 2.0199e+000 7.4736e+004 Rb-89 2.6882e-024 9.9.462e-014 3.5766e-029 1.3234e-024 Rh-103m 9.1473e+002 3.3845e+013 1.2171e-002 4.5032e+002 Rh-105 4.7216e+002 1.7470e+013 6.2822e-003 2.3244e+002 Rh-105m 4.1362e+000 1.5304e+011 5.5033e-005 2.0362e+000 Rh-106 4.6257e+002 1.7115e+013 6.1545e-003 2.2772e+002 Rn-219 1.0115e-023 3.7426e-013 1.3458e-028 4.9796e-024 Rn-220 1.9556e-023 7.2359e-013 2.6020e-028 9.6275e-024 Rn-222 2.1057e-020 7.7911e-010 2.8017e-025 1.0366e-020 Ru-103 9.1624e+002 3.3901e+013 1.2191e-002 4.5106e+002 Ru-105 1.6835e+001 6.2290e+011 2.2399e-004 8.2878e+000 Ru-106 4.6257e+002 1.7115e+013 6.1545e-003 2.2772e+002 Sb-124 3.0114e+001 1.1142e+012 4.0067e-004 1;4825e+001 Sb-125 2.5373e+002 9.3879e+012 3.3759e-003 1.2491e+002 Sb-126 1.6621e+001 6.1498e+011 2.2115e-004 8.1825e+000 Sb-127 1.1340e+003 4.1959e+013 1.5088e-002 5.5827e+002 Sb-129 8.4297e+001 3.1190e+012 1.1216e-003 4.1499e+001 Sm-147 8.0184e-014 2.9668e-003 1.0669e-018 3.9474e-014 Sm-151 9.1220e-005 3.3751e+006 1.2137e-009 4.4907e-005 Sm-153 2.0130e+001 7.4483e+011 2.6784e-004 9.9101e+000 Sr-89 3.6180e+003 1.3387e+014 4.8138e-002 1.7811e+003 Sr-90 5.2241e+002 1.9329e+013 6.9508e-003 2.5718e+002 Sr-91 7.9620e+002 2.9460e+013 1.0594e-002 3.9197e+002 Sr-92 1.0824e+001 4.0050e+011 1.4402e-004 5.3287e+000 Tc-99 3.0193e-006 1.1171e+005 4.0173e-011 1.4864e-006 Tc-99m 6.1113e+002 2.2612e+013 8.1312e-003 3.0085e+002 Tc-101 3.7642e-018 1.3928e-007 5.0084e-023 1.853le-018

?age  : 4

)OS File: .SL2MS05.MS5 Attachment 6 to PSL-ENG-SENS-04-037, Rev. 0 Page 18 of 121 tun Date: January 10, 2003 lun Time: 10:01:39 PM

)uration: 00:01:06 Nuclide curies begauerels u~i/cm3 Te-125m 5.5798e+001 2.0645e+012 7.4241e-004 2.7469e+001 Te-127 1.2123e+003 4.4854e+013 1.6130e-002 5.9680e+002 Te-127m 1.8302e+002 6.7717e+012 2.4351e-003 9.0099e+001 Te-129 4.4067e+002 1.6305e+013 5.8632e-003 2.1694e+002 Te-129m 5.4804e+002 2.0278e+013 7.2918e-003 2.6980e+002 Te-131 2.1028e+002, 7.7804e+012 2.7978e-003 1.0352e+002 Te-131m 9.3406e+002 3.4560e+013 1.2428e-002 4.5983e+002 Te-132 1.2255e+004 4.5344e+014 1.6306e-001 6.0332e+003 Te-133 1.8709e-005 6.9223e+005 2.4893e-010 9.2103e-006 Te-133m 1.1157e-004 4.1282e+006 1.4845e-009 5.4926e-005 Te-134 7.1595e-007 2.6490e+004 9.5259e-012 3.5246e-007 Th-227 Th-228 5.6077e-024 2.0749e-013 7.4612e-029 2.7606e-024 Th-229 3.6084e-020 1.3351e-009 4.8010e-025 1.7764e-020 Th-230 3.3708e-017 1.2472e-006 4.4849e-022 1.6594e-017 Th-231 1.8410e-014 6.8115e-004 2.4494e-019 9.0629e-015 Th-232 Th-234 1.8518e-024 6.8515e-014 2.4638e-029 9.1161e-025 Tl-207 6.7960e-027 2.5145e-016 9.0422e-032 3.3456e-027 Tl-208 4.9166e-024 1.8192e-013 6.5417e-029 2.4204e-024 Ti-209 1.5595e-022 5;7703e-012 2.0750e-027 7.6775e-023 U-233 3.6048e-020 1.3338e-009 4.7962e-025 1.7746e-020 U-234 4.1019e-009 1.5177e+002 5.4576e-014 2.0193e-009 U-235 9.7462e-014 3.6061e-003 1.2968e-018 4.7980e-014 U-236 4.9287e-012 1.8236e-001 6.5577e-017 2.4264e-012 U-237 3.7241e-005 1.3779e+006 4.9549e-010 1.8333e-005 U-238 2.7600e-022 1.0212e-011 3.6723e-027 1.3587e-022 Xe-131m 8.1794e+005 3.0264e+016 1.0883e+001 4.0267e+005 Xe-133 1.3390e+008 4.9545e+018 1.7816e+003 6.5920e+007 Xe-133m 3.6293e+006 1.3429e+017 4.8289e+001 1.7867e+006 Xe-135 1.3270e+007 4.9100e+017 1.7656e+002 6.5328e+006 Xe-135m 3.0151e+003 1.1156e+014 4.0117e-002 1.4843e+003 Xe-138 2.6887e-023 9.9482e-013 3.5774e-028 1.3236e-023 Y-90 1.1751e+002 4.3477e+012 1.5634e-003 5.7847e+001 Y-91 6.9599e+001 2.5752e+012 9.2603e-004 3.4263e+001 Y-91m 5.0069e+002 1.8525e+013 6.6617e-003 2.4648e+002 Y-92 1.0229e+002 3.7848e+012 1.3610e-003 5.0357e+001 Y-93 1.1386e+001 4.2129e+011 1.5150e-004 5.6054e+000 Zr-93 1.7135e-008 6.3399e+002 2.2798e-013 8.4353e-009 Zr-95 6.7488e+001 2.4971e+012 8.9794e-004 3.3224e+001 Zr-97 2.5491e+001 9.4317e+011 3.3916e-004 1.2549e+001 Buildup The material reference is : Shield 3 Xntegration Parameters Radial 20 Circumferential 20 Y Direction (axial) 40 Results

?age 5 DOS File: SL2MS05 .MS5 Attachment 6 to PSL-ENG-SENS-04-037, Rev. 0 Page 19 of 121

.Run Date: January 10, 2003 Run Time: 10:01:39 PM Duration: 00:01:06 Eneroy Activity Fluence Rate Fluence Rate Exoosure Rate Exnosure Rate MY pnhotons/seuc MeV/CM2/sEp mR/hr mR/hr No Buildup- With Buildup No Build=o With Buildup 0.015 1.039e+11 0.OOOe+00 1.045e-25 0.OOOe+00 8.961e-27 0.02 6.576e+12 0.OOOe+00 1.040e-23 0.OOOe+00 3.604e-25 0.03 2.494e+18 1.882e-304 8.727e-18 1.865e-306 8.649e-20 0.04 1.810e+13 1.149e-145 1.680e-22 5.081e-148 7.429e-25 0.05 5.978e+13 4.260e-86 1.813e-21 1.135e-88 4.830e-24 0.06 2.423e+13 3.807e-60 5.276e-21 7.563e-63 1.048e-23 0.08 1.818e+18 1.085e-33 9.419e-16 1.717e-36 1.490e-18 0.1 8.684e+13 1.108e-29 2.079e-19 1.696e-32 3.181e-22 0.15 1.442e+16 9.427e-20 2.859e-16 1.552e-22 4.707e-19 0.2 4.606e+17 5.202e-15 9.600e-12 9.181e-18 1.694e-14 0.3 2.762e+15 1.095e-13 1.324e-10. 2.077e-16 2.512e-13 0.4 6.419e+15 4.120e-11 2.795e-08 8.028e-14 5.445e-11 0.5 4.200e+15 1.095e-09 4.515e-07 2.150e-12 8.862e-10 0.6 1.752e+16 8.172e-08 2.201e-05 1.595e-10 4.297e-08 0.8 3.406e+15 1.203e-06 1.694e-04 2.289e-09 3.223e-07 1.0 1.149e+15 9.632e-06 8.257e-04 1.775e-08 1.522e-06 1.5 1.583e+15 2.557e-03 9.791e-02 4.302e-06 1.647e-04 2.0 4.393e+15 1.784e-01 4.259e+00 2.759e-04 6.586e-03 3.0 2.014e+14 3.632e-01 4.868e+00 4.928e-04 6.605e-03 4.0 1.612e+06 2.580e-08 2.451e-07 3.191e-11 3.032e-10 5.0 8.054e+12 5.320e-01 3.954e+00 6;099e-04 4.532e-03 TOTALS: 4.829e+18 1. 076e+00 1.318e+01 1.383e-03 1. 789e-02

Attachment 6 to PSL-ENG-SENS-04-037. Rev. 0 MicroShield v5.05 (5.05-0000) Page 20 of 121 Grove Engineering Page  : 1 File Ref:

DOS File: SL2MS06.MS5 Date:

Run Date: January 10, 2003 By:

Run Time: 10:03:43 PM Checked:

Duration: 00:01:06 Case

Title:

sl2msO6

Description:

St. Lucie Unit 2 LOCA (Containment to CR) - 96 h Geometry: 7 - Cylinder Volume - Side Shields Source Dimensions Height 5.3e+3 cm 172 ft 5.0 in Radius 2.le+3 cm 70 ft Dose Points X Y. Z

1. 1 3.26e+03 cm 1402.08 cm 0 cm 106 ft 10.7 in 46 ft 0.0 in Shields

.$bie.\4 Nae DIm~neswiqrj 1jat~e.Cr:L pqrsiLty, Source 7.52e+10 cm3 Water 0.000598 Shield 1 4.877 cm Iron 7.86 Shield 2 117.043 cm Air 0.00122 Shield 3 91.44 cmConcrete2.35 Transition 545.287 cm Air 0.00122 Shield 5 60.96 cmConcrete2.35 Air Gap Air 0.00122 Source Input Grouping Method : Standard Indices Number of Groups : 25 Lower Energy Cutoff : 0.015 Photons < 0.015 : Excluded Library : Grove NUiOACeL ct4zieS. Incquexe.ls gA/czm.3 q.Rqwq3.

Ac-225 4.3694e-022 1.6167e-011 5.8135e-027 2.1510e-022 Ac-227 Ac-228 2.5179e-024 9.3161e-014 3.3501e-029 1.2395e-024 Ag-109m 1.8931e+000 7.0046e+010 2.5189e-005 9.3198e-001 Am-241 1.2562e-002 4.6481e+008 1.6715e-007 6.1844e-003 Am-242 9.2407e-002 3.4191e+009 1.2295e-006 4.5491e-002 Am-243 2.1366e-006 7.9054e+004 2.8428e-011 1.0518e-006 At-217 1.4838e-020 5.4901e-010 1.9742e-025 7.3047e-021 Ba-137m 8.8217e+003 3.2640e+014 1.1737e-001 4.3429e+003 Ba-139 9.8652e-018 3.6501e-007 1.3126e-022 4.8566e-018 Ba-140 5.7282e+003 2.1194e+014 7.6214e-002 2.8199e+003 Ba-141 8.3154e-092 3.0767e-081 1.1064e-096 4.0936e-092 Bi-210 1.0710e-019 3.9627e-009 1.4250e-024 5.2725e-020 Bi-211 2.8411e-024 1.0512e-013 3.7802e-029 1.3987e-024 Bi-212 7.5276e-024 2.7852e-013 1.0016e-028 3.7058e-024 Bi-213 3.4538e-022 1.2779e-011 4.5953e-027 1.7003e-022 Bi-214 5.3184e-020 1.9678e-009 7.0762e-025 2.6182e-020 Br-82 1.4888e+002 5.5085e+012 1.9809e-003 7.3292e+001 Br-83 1.0876e-008 4.0240e+002 1.4470e-013 5.3540e-009 Br-84 6.8174e-051 2.5224e-040 9.0707e-056 3.3561e-051 Ce-141 1.5743e+002 5.8251e+012 2.0947e-003 7.7504e+001

Page 2 Attachment 6 to PSL-ENG-SENS-04-037, Rev. 0 DOS File: SL2MS06.MS5 Page 21 of 121 Run Date: January 10, 2003 Run Time: 10:03:43 PM Duration: 00:01:06 Ce-14de curies beccruergla MCi/Cm3 Ce-143 2.0723e+001 7.6676e+011 2.7573e-004 1.0202e+001 Ce-144 1.4216e+002 5.2600e+012 1.8915e-003 6.9985e+001 Cm-242 3.9078e+000 1.4459e+011 5.1994e-005 1.9238e+000 Cm-244 5.9487e-001 2.2010e+010 7.9149e-006 2.9285e-001 Cs-134 1.8862e+004 6.9789e+014 2.5096e-001 9.2855e+003 Cs-134m 4.6003e-007 1.7021e+004 6.1208e-012 2.2647e-007 Cs-135 2.0219e-002 7.4812e+008 2.6902e-007 9.9538e-003 Cs-136 4.1293e+003 1.5278e+014 5.4941e-002 2.0328e+003 Cs-137 9.3252e+003 3.4503e+014 1.2407e-001 4.5908e+003 Cs-138 6.1669e-049 2.2817e-038 8.2052e-054 3.0359e-049 Eu-154 9.0687e-001 3.3554e+010 1.2066e-005 4.4645e-001 Eu-155 6.1396e-001 2.2716e+010 8.1688e-006 3.0225e-001 Eu-156 1.3406e+001 4.9603e+011 1.7837e-004 6.5998e+000 Fr-221 1.9452e-020 7.1971e-010 2.5881e-025 9.5759e-021 Fr-223 I-129 2.7482e-007 1.0168e+004 3.6566e-012 1.3529e-007 I-130 3.3104e+001 1.2249e+012 4.4046e-004 1.6297e+001 I-131 8.5249e+004 3.1542e+015 1.1343e+000 4.1967e+004 I-132 6.6700e+003 2.4679e+014 8.8745e-002 3.2836e+003 I-133 9.6082e+003 3.5550e+014 1.2784e-001 4.7301e+003 I-134 5.3808e-028 1.9909e-017 7.1593e-033 2.6489e-028 I-135 9.2400e+000 3.4188e+011 1.2294e-004 4.5488e+000 Kr-83m 5.0644e-008 1.8738e+003 6.7383e-013 2.4932e-008 Kr-85 1.1525e+006 4.2643e+016 1.5334e+001 5.6737e+005 Kr-85m 6.3268e+000 2.3409e+011 8.4179e-005 3.1146e+000 Kr-87 6.3796e-016 2.3605e-005 8.4882e-021 3.1406e-016 Kr-88 3.1743e-003 1.1745e+008 4.2235e-008 1.5627e-003 La-140 5.0073e+003 1.8527e+014 6.6623e-002 2.4651e+003 La-141 5.0898e-006 1.8832e+005 6.7720e-011 2.5057e-006 La-142 3.8768e-017 1.4344e-006 5.1581e-022 1.9085e-017 Mo-99 3.6226e+002 1.3404e+013 4.8200e-003 1.7834e+002 Nb-93m 1.0227e-011 3.7840e-001 1.3607e-016 5.0346e-012 Nb-95 6.8779e+001 2.5448e+012 9.1512e-004 3.3859e+001 Nb-95m 5.0935e-001 1.8846e+010 6.7770e-006 2.5075e-001 Nb-97 1.4333e+000 5.3031e+010 1.9070e-005 7.0559e-001 Nb-97m 1.2609e+000 4.6652e+010 1.6776e-005 6.2072e-001 Nd-147 2.1149e+001 7.8251e+011 2.8139e-004 1.0411e+001 Np-237 4.0552e-011 1.5004e+000 5.3955e-016 1.9963e-011 Np-238 2.1013e+001 7.7747e+011 2.7958e-004 1.0344e+001 Np-239 8.5322e+002 3.1569e+013 1.1352e-002 4.2003e+002 Pa-231 2.4545e-020 9.0816e-010 3.2657e-025 1.2083e-020 Pa-233 1.8368e-012 6.7962e-002 2.4439e-017 9.0425e-013 Pa-234 2.1007e-025 7.7726e-015 2.7950e-030 1.0342e-025 Pa-234m 1.7002e-022 6.2909e-012 2.2622e-027 8.3702e-023 Pb-209 1.7802e-020 6.5869e-010 2.3686e-025 8.7640e-021 Pb-210 5.0271e-020 1.8600e-009 6.6887e-025 2.4748e-020 Pb-211 4.6897e-028 1.7352e-017 6.2397e-033 2.3087e-028 Pb-212 1.3466e-023 4.9825e-013 1.7917e-028 6.6293e-024 Pb-214 9.1635e-020 3.3905e-009 1.2192e-024 4.5111e-020 Pd-109 1.8926e+000 7.0025e+010 2.5181e-005 9.3170e-001 Pm-147 6.7586e+000 2.5007e+011 8.9925e-005 3.3272e+000 Pm-148 7.4896e+000 2.7712e+011 9.9651e-005 3.6871e+000 Pm-148m 1.5024e+000 5.5591e+010 1.9990e-005 7.3964e-001

Page 3 Attachment 6 to PSL-ENG-SENS-04-037, Rev. 0 DOS File: SL2MS06.MS5 Page 22 of 121 Run Date: January 10, 2003 Run Time: 10:03:43 PM Duration: 00:01:06 Nuclide curies beccruerels MCi/CM3 Ba/cm3 Pm-149 7.6248e+000 2.8212e+011 1.0145e-004 3.7536e+000 Pm-151 9.1509e-001 3.3858e+010 1.2175e-005 4.5049e-001 Po-210 5.9087e-020 2.1862e-009 7.8616e-025 2.9088e-020 Po-211 5.4945e-031 2.0330e-020 7.3105e-036 2.7049e-031 Po-212 4.8230e-024 1.7845e-013 6.4170e-029 2.3743e-024 Po-213 3.3792e-022 1.2503e-011 4.4961e-027 1.6636e-022 Po-214 7.4649e-020 2.7620e-009 9.9322e-025 3.6749e-020 Po-215 2.1606e-028 7.9944e-018 2.8748e-033 1.0637e-028 Po-216 1.4724e-023 5.4479e-013 1.9590e-028 7.2485e-024 Po-218 1.2335e-019 4.5641e-009 1.6412e-024 6.0726e-020 Pr-143 6.1826e+001 2.2876e+012 8.2261e-004 3.0436e+001 Pr-144 1.4217e+002 5.2602e+012 1.8916e-003 6.9988e+001 Pr-144m 2.0330e+000 7.5219e+010 2.7049e-005 1.0008e+000 Pu-238 7.9569e-001 2.9441e+010 1.0587e-005 3.9171e-001 Pu-239 5.4599e-002 2.0202e+009 7.2645e-007 2.6879e-002 Pu-240 9.1219e-002 3.3751e+009 1.2137e-006 4.4906e-002 Pu-241 2.2962e+001 8.4959e+011 3.0551e-004 1.1304e+001 Pu-242 3.4237e-009 1.2668e+002 4.5554e-014 1.6855e-009 Pu-243 1.2598e-004 4.6611e+006 1.6761e-009 6.2017e-005 Ra-223 Ra-224 2.5420e-024 9.4056e-014 3.3822e-029 1.2514e-024 Ra-225 1.3511e-022 4.9991e-012 1.7977e-027 6.6514e-023 Ra-226 1.1750e-019 4.3474e-009 1.5633e-024 5.7843e-020 Ra-228 Rb-86 1.4702e+002 5.4398e+012 1.9562e-003 7.2378e+001 Rb-87 1.3272e-009 4.9107e+001 1.7659e-014 6.5337e-010 Rb-88 3.5445e-003 1.3115e+008 4.7161e-008 1.7450e-003 Rb-89 1.5975e-108 5.9108e-098 2.1255e-113 7.8644e-109 Rh-103m 8.6765e+002 3.2103e+013 1.1544e-002 4.2714e+002 Rh-105 1.1571e+002 4.2811e+012 1.5395e-003 5.6961e+001 Rh-105m 5.4330e-005 2.0102e+006 7.2287e-010 2.6746e-005 Rh-106 4.5996e+002 1.7019e+013 6.1199e-003 2.2644e+002 Rn-219 1.0191e-023 3.7707e-013 1.3560e-028 5.0170e-024 Rn-220 1.4734e-023 5.4515e-013 1.9604e-028 7.2533e-024 Rn-222 1.5884e-019 5.8772e-009 2.1134e-024 7.8197e-020 Ru-103 8.6908e+002 3.2156e+013 1.1563e-002 4.2784e+002 Ru-105 2.2113e-004 8.1818e+006 2.9422e-009 1.0886e-004 Ru-106 4.5996e+002 1.7019e+013 6.1199e-003 2.2643e+002 Sb-124 2.9092e+001 1.0764e+012 3.8707e-004 1.4322e+001 Sb-125 2.5321e+002 9.3686e+012 3.3690e-003 1.2465e+002 Sb-126 1.4055e+001 5.2004e+011 1.8701e-004 6.9192e+000 Sb-127 6.6077e+002 2.4448e+013 8.7917e-003 3.2529e+002 Sb-129 9.9969e-004 3.6988e+007 1.330le-008 4.9214e-004 Sm-147 4.4227e-013 1.6364e-002 5.8844e-018 2.1772e-013 Sm-151 2.4921e-004 9.2209e+006 3.3158e-009 1.2269e-004 Sm-153 6.9141e+000 2.5582e+011 9.1994e-005 3.4038e+000 Sr-89 3.4722e+003 1.2847e+014 4.6198e-002 1.7093e+003 Sr-90 5.2231e+002 1.9325e+013 6.9494e-003 2.5713e+002 Sr-91 4.1642e+000 1.5408e+011 5.5406e-005 2.0500e+000 Sr-92 1.0878e-007 4.0249e+003 1.4473e-012 5.3552e-008 Tc-99 1.8320e-005 6.7785e+005 2.4375e-010 9.0189e-006 Tc-99m 3.5313e+002 1.3066e+013 4.6985e-003 1.7384e+002 Tc-101 9.8792e-110 3.6553e-099 1.3144e-114 4.8634e-110

Page 4 Attachment 6 to PSL-ENG-SENS-04-037, Rev. 0 DOS File: SL2MS06.MS5 Page 23 of 121 Run Date: January 10, 2003 Run Time: 10:03:43 PM Duration: 00:01:06 Nucl ide curies becouerels UCi/Cm3 Ba/cm3 Te-125m 5.5895e+001 2.0681e+012 7.4370e-004 2.7517e+001 Te-127 7.9007e+002 2.9232e+013 1.0512e-002 3.8894e+002 Te-127m 1.8236e+002 6.7472e+012 2.4263e-003 8.9773e+001 Te-129 3.2454e+002 1.2008e+013 4.3181e-003 1.5977e+002 Te-129m 5.1522e+002 1.9063e+013 6.8552e-003 2.5364e+002 Te-131 3.9841e+001 1.4741e+012 5.3009e-004 1.9613e+001 Te-131m 1.7697e+002 6.5479e+012 2.3546e-003 8.7121e+001 Te-132 6.4738e+003 2.3953e+014 8.6135e-002 3.1870e+003 Te-133 6.2839e-029 2.3250e-018 8.3609e-034 3.0935e-029 Te-133m 3.7475e-028 1.3866e-017 4.9861e-033 1.8449e-028 Te-134 5.5418e-038 2.0505e-027 7.3734e-043 2.7282e-038 Th-227 Th-228 9.1881e-024 3.3996e-013 1.2225e-028 4.5232e-024 Th-229 2.0905e-020 7.7350e-010 2.7815e-025 1.0292e-020 Th-230 1.0207e-015 3.7764e-005 1.3580e-020 5.0246e-016 Th-231 3.3325e-013 1.2330e-002 4.4340e-018 1.6406e-013 Th-232 7.9707e-024 2.9491e-013 1.0605e-028 3.9239e-024 Th-234 1.7016e-022 6.2957e-012 2.2640e-027 8.3766e-023 Tl-207 4.8994e-025 1.8128e-014 6.5187e-030 2.4119e-025 Tl-208 6.8983e-024 2.5524e-013 9.1783e-029 3.3960e-024 Tl-209 4.6600e-022 1.7242e-011 6.2003e-027 2.2941e-022 U-233 6.2570e-020 2.3151e-009 8.3250e-025 3.0803e-020 U-234 2.2605e-008 8.3637e+002 3.0076e-013 1.1128e-008 U-235 5.3801e-013 1.9906e-002 7.1583e-018 2.6486e-013 U-236 2.7108e-011 1.0030e+000 3.6067e-016 1.3345e-011 U-237 1.7655e-004 6.5324e+006 2.3490e-009 8.6914e-005 U-238 4.0527e-021 1.4995e-010 5.3923e-026 1.9951e-021 Xe-13lm 6.8637e+005 2.5396e+016 9.1323e+000 3.3789e+005 Xe-133 9.0832e+007 3.3608e+018 1.2085e+003 4.4716e+007 Xe-133m 1.4049e+006 5.1981e+016 1.8692e+001 6.9161e+005 Xe-135 5.5597e+004 2.0571e+015 7.3973e-001 2.7370e+004 Xe-135m 1.5860e+000 5.8683e+010 2.1102e-005 7.8078e-001 Xe-138 2.4825e-115 9.1854e-105 3.303le-120 1.222le-115 Y-90 3.3650e+002 1.2451e+013 4.4772e-003 1.6566e+002 Y-91 7.2660e+001 2.6884e+012 9.6676e-004 3.5770e+001 Y-91m 2.6186e+000 9.6890e+010 3.4842e-005 1.2891e+000 Y-92 1.0342e-004 3.8264e+006 1.3760e-009 5.0911e-005 Y-93 8.1363e-002 3.0104e+009 1.0826e-006 4.0054e-002 Zr-93 2.5648e-008 9.4898e+002 3.4125e-013 1.2626e-008 Zr-95 6.5331e+001 2.4173e+012 8.6925e-004 3.2162e+001 Zr-97 1.3301e+000 4.9214e+010 1.7698e-005 6.5481e-001 Buildup The material reference is  : Shield 3 Integration Parameters Radial 20 Circumferential 20 Y Direction (axial) 40 Results

Page  : 5 Attachment 6 to PSL-ENG-SENS-04-037, Rev. 0 DOS File: SL2MS06.MS5 Page 24 of 121 Run Date: January 10, 2003 Run Time: 10:03:43 PM Duration: 00:01:06 Enerovy Activitv Fluence Rate Fluence Rate ExDosure Rate Ex2osure Rate MaY photons/sec MeV/cm 2 /sec eVLyCM2/sec mR/hr mR/hr No Buildup With Buildup No Buildup With BuilduD 0.015 9.605e+09 0.OOOe+00 9.658e-27 0.OOOe+00 8.284e-28 0.02 4.169e+12 0.OOOe+00 6.597e-24 0.OOOe+00 2.285e-25 0.03 1.656e+18 1.249e-304 5.793e-18 1.238e-306 5.741e-20 0.04 1.517e+13 9.627e-146 1.407e-22 4.258e-148 6.225e-25 0.05 3.161e+13 2.252e-86 9.588e-22 6.OOOe-89 2.554e-24 0.06 1.988e+13 3.123e-60 4.327e-21 6.203e-63 8.595e-24 0.08 1.233e+18 7.360e-34 6.389e-16 1.165e-36 1.Olle-18 0.1 3.394e+13 4.331e-30 8.125e-20 6.626e-33 1.243e-22 0.15 5.570e+14 3.640e-21 1.104e-17 5.995e-24 1.818e-20 0.2 9.845e+15 1.112e-16 2.052e-13 1.963e-19 3.622e-16 0.3 3.686e+14 1.461e-14 1.767e-11 2.772e-17 3.351e-14 0.4 2.603e+15 1.671e-11 1.133e-08 3.256e-14 2.208e-11 0.5 7.641e+14 1.992e-10 8.213e-08 3.911e-13 1.612e-10 0.6 1.792e+15 8.359e-09 2.252e-06 1.632e-11 4.395e-09 0.8 1.216e+15 4.297e-07 6.050e-05 8.174e-10 1.151e-07 1.0 2.786e+14 2.336e-06 2.003e-04 4.306e-09 3.691e-07 1.5 2.487e+14 4.019e-04 1.539e-02 6.762e-07 2.589e-05 2.0 1.023e+13 4.155e-04 9.917e-03 6.424e-07 1.534e-05 3.0 6.597e+12 1.190e-02 1.594e-01 1.614e-05 2.163e-04 4.0 3.765e-08 6.026e-22 5.725e-21 7.455e-25 7.082e-24 5.0 1.880e+05 1.242e-08 9.231e-08 1.424e-11 1.058e-10 TOTALS: 2.907e+18 1.272e-02 1.850e-01 1.746e-05 2.580e-04

MicroShield v505 (5. 05-0000) Attachment 6 to PSL-ENG-SENS-04-037. Rev. 0 Micr~hild 5.05(5.5-000)Page 25 of 121 Grove Engineering Page  : 1 File Ref:

DOS File: SL2MS07.MS5 Date:

Run Date: January 10, 2003 By:

Run Time: 10:05:44 PM Checked:

Duration: 00:01:06 Case

Title:

sl2msO7

Description:

St. Lucie Unit 2 LOCA (Containment to CR) - 720 h Geometry: 7 - Cylinder Volume - Side Shields Source Dimensions Height 5.3e+3 cm 172 ft 5.0 in Radius 2.le+3 cm 70 ft Dose Points Y. t

1. 1 3.26e+03 cm 1402.08 cm 0 cm 106 ft 10.7 in 46 ft 0.0 in Shields shiqlclNae, %ijqrsitozj ]4tqir:LLqrjrqty.

Source 7.52e+10 cm3 Water 0.000598 Shield 1 4.877 cm Iron 7.86 Shield 2 117.043 cm Air 0.00122 Shield 3 91.44 cmConcrete2.35 Transition 545.287 cm Air 0.00122 Shield 5 60.96 cmConcrete2.35 Air Gap Air 0.00122 Source Input Grouping Method : Standard Indices Number of Groups : 25 Lower Energy Cutoff : 0.015 Photons < 0.015 : Excluded Library : Grove nx4 q3ce. qurie~sL beQquq.q giqr3. ]q/.cq=n 3 .

Ac-225 3.9250e-020 1.4522e-009 5.2223e-025 1.9322e-020 Ac-227 2.9994e-021 1.1098e-010 3.9907e-026 1.4766e-021 Ac-228 3.2936e-024 1.2186e-013 4.3822e-029 1.6214e-024 Ag-109m 2.0620e-014 7.6296e-004 2.7436e-019 1.0151e-014 Am-241 1.5178e-002 5.6158e+008 2.0194e-007 7.4719e-003 Am-242 1.7386e-013 6.4327e-003 2.3132e-018 8.5588e-014 Am-243 2.1366e-006 7.9054e+004 2.8428e-011 1.0518e-006 At-217 2.5391e-020 9.3947e-010 3.3783e-025 1.2500e-020 Ba-137m 8.8073e+003 3.2587e+014 1.1718e-001 4.3358e+003 Ba-139 2.3313e-153 8.6258e-143 3.1018e-158 1.1477e-153 Ba-140 1.3997e+003 5.1787e+013 1.8623e-002 6.8904e+002 Ba-141 Bi-210 6.5417e-020 2.4204e-009 8.7039e-025 3.2205e-020 Bi-211 2.9137e-023 1.0781e-012 3.8768e-028 1.4344e-023 Bi-212 1.4849e-023 5.4941e-013 1.9757e-028 7.3100e-024 Bi-213 2.2030e-020 8.1509e-010 2.9311e-025 1.0845e-020 Bi-214 5.2490e-019 1.9421e-008 6.9839e-024 2.5840e-019 Br-82 7.1041e-004 2.6285e+007 9.4521e-009 3.4973e-004 Br-83 2.7617e-087 1.0218e-076 3.6745e-092 1.3596e-087 Br-84 Ce-141 9.0422e+001 3.3456e+012 1.2031e-003 4.4514e+001

Page  : 2 Attachment 6 to PSL-ENG-SENS-04-037. Rev. 0 DOS File: SL2MS07.MS5 Page 26 of 121 Run Date: January 10, 2003 Run Time: 10:05:44 PM Duration: 00:01:06 Nuclide curies becouerels Ce-143 4.2097e-005 1.5576e+006 5.6012e-010 2.0724e-005 Ce-144 1.3343e+002 4.9369e+012 1.7753e-003 6.5687e+001 Cm-242 3.4995e+000 1.2948e+011 4.6562e-005 1.7228e+000 Cm-244 5.9325e-001 2.1950e+010 7.8933e-006 2.9205e-001 Cs-134 1.8416e+004 6.8139e+014 2.4503e-001 9.0660e+003 Cs-134m 7.7524e-072 2.8684e-061 1.0315e-076 3.8164e-072 Cs-135 2.0244e-002 7.4905e+008 2.6936e-007 9.9662e-003 Cs-136 1.0499e+003 3.8845e+013 1.3969e-002 5.1685e+002 Cs-137 9.3100e+003 3.4447e+014 1.2387e-001 4.5832e+003 Cs-138 Eu-154 9.0180e-001 3.3367e+010 1.1999e-005 4.4395e-001 Eu-155 6.0788e-001 2.2492e+010 8.0880e-006 2.9926e-001 Eu-156 4.0931e+000 1.5144e+011 5.4459e-005 2.0150e+000 Fr-221 3.0023e-020 1.1108e-009 3.9946e-025 1.4780e-020 Fr-223 3.1996e-023 1.1839e-012 4.2571e-028 1.5751e-023 I-129 1.5292e-006 5.6580e+004 2.0346e-011 7.5280e-007 I-130 2.1002e-014 7.7706e-004 2.7943e-019 1.0339e-014 I-131 9.0651e+003 3.3541e+014 1.2061e-001 4.4627e+003 I-132 2.6427e+001 9.7779e+011 3.5161e-004 1.3010e+001 I-133 8.9484e-006 3.3109e+005 1.1906e-010 4.4052e-006 I-134 2.8946e-242 1.0710e-231 3.8513e-247 1.4250e-242 I-135 3.5295e-028 1.3059e-017 4.6960e-033 1.7375e-028 Kr-83m 1.1783e-086 4.3599e-076 1.5678e-091 5.8009e-087 Kr-85 1.1472e+006 4.2447e+016 1.5264e+001 5.6476e+005 Kr-85m 7.4474e-042 2.7555e-031 9.9089e-047 3.6663e-042 Kr-87 1.2331e-163 4.5624e-153 1.6406e-168 6.0704e-164 Kr-88 2.2900e-069 8.4732e-059 3.0470e-074 1.1274e-069 La-140 1.6107e+003 5.9595e+013 2.1431e-002 7.9293e+002 La-141 1.0737e-053 3.9727e-043 1.4286e-058 5.2857e-054 La-142 2.8080e-135 1.0390e-124 3.7361e-140 1.3824e-135 Mo-99 5.1735e-001 1.9142e+010 6.8834e-006 2.5469e-001 Nb-93m 9.6927e-011 3.5863e+000 1.2896e-015 4.7716e-011 Nb-95 6.3745e+001. 2.3586e+012 8.4814e-004 3.1381e+001 Nb-95m 4.1767e-001 1.5454e+010 5.5572e-006 2.0562e-001 Nb-97 1.lOOOe-011 4.0698e-001 1.4635e-016 5.4150e-012 Nb-97m 9.6765e-012 3.5803e-001 1.2875e-016 4.7636e-012 Nd-147 4.0970e+000 1.5159e+011 5.4512e-005 2.0169e+000 Np-237 3.7022e-010 1.3698e+001 4.9259e-015 1.8226e-010 Np-238 4.2206e-003 1.5616e+008 5.6156e-008 2.0778e-003 Np-239 4.0512e-001 1.4990e+010 5.3903e-006 1.9944e-001 Pa-231 3.3893e-018 1.2541e-007 4.5096e-023 1.6685e-018 Pa-233 1.0711e-010 3.9631e+000 1.4251e-015 5.2730e-011 Pa-234 2.1283e-023 7.8749e-013 2.8318e-028 1.0478e-023 Pa-234m 1.3636e-020 5.0452e-010 1.8142e-025 6.7127e-021 Pb-209 6.1023e-022 2.2579e-011 8.1192e-027 3.0041e-022 Pb-210 7.4256e-020 2.7475e-009 9.8799e-025 3.6556e-020 Pb-211 4.5254e-023 1.6744e-012 6.0212e-028 2.2278e-023 Pb-212 1.9171e-023 7.0934e-013 2.5508e-028 9.4380e-024 Pb-214 5.2274e-019 1.9341e-008 6.9552e-024 2.5734e-019 Pd-109 2.0614e-014 7.,6272e-004 2.7427e-019 1.0148e-014 Pm-147 6.8258e+000 2.5256e+011 9.0819e-005 3.3603e+000 Pm-148 3.0555e-001 1.1305e+010 4.0654e-006 1.5042e-001 Pm-148m 9.7116e-001 3.5933e+010 1.2921e-005 4.7809e-001

Page  : 3 Attachment 6 to PSL-ENG-SENS-04-037, Rev. 0 DOS File: SL2MS07.MS5 Page 27 of 121 Run Date: January 10, 2003 Run Time: 10:05:44 PM Duration: 00:01:06 Nuclide curies becouerels uCi/cm3 Ba/M Pm-149 2.2048e-003 8.1577e+007 2.9335e-008 1.0854e-003 Pm-151 2.2248e-007 8.2316e+003 2.9601e-012 1.0952e-007 Po-210 4.5340e-020 1.6776e-009 6.0326e-025 2.2321e-020 Po-211 6.2119e-026 2.2984e-015 8.2650e-031 3.0581e-026 Po-212 9.5136e-024 3.5200e-013 1.2658e-028 4.6835e-024 Po-213 2.1554e-020 7.9749e-010 2.8678e-025 1.0611e-020 Po-214 5.4627e-019 2.0212e-008 7.2682e-024 2.6892e-019 Po-215 2.9860e-023 1.1048e-012 3.9729e-028 1.4700e-023 Po-216 3.9851e-024 1.4745e-013 5.3023e-029 1.9619e-024 Po-218 6.2271e-019 2.3040e-008 8.2853e-024 3.0656e-019 Pr-143 1.6986e+001 6.2849e+011 2.2601e-004 8.3622e+000 Pr-144 1.3343e+002 4.9371e+012 1.7754e-003 6.5689e+001 Pr-144m 1.9081e+000 7.0599e+010 2.5388e-005 9.3934e-001 Pu-238 7.9871e-001 2.9552e+010 1.0627e-005 3.9320e-001 Pu-239 5.4826e-002 2.0286e+009 7.2948e-007 2.6991e-002 Pu-240 9.1222e-002 3.3752e+009 1.2137e-006 4.4908e-002 Pu-241 2.2883e+001 8.4669e+011 3.0447e-004 1.1265e+001 Pu-242 3.5015e-009 1.2955e+002 4.6588e-014 1.7238e-009 Pu-243 1.5783e-042 5.8399e-032 2.10OOe-047 7.7701e-043 Ra-223 2.3665e-023 8.7561e-013 3.1487e-028 1.1650e-023 Ra-224 5.0764e-026 1.8783e-015 6.7542e-031 2.4991e-026 Ra-225 4.3586e-021 1.6127e-010 5.7992e-026 2.1457e-021 Ra-226 8.2161e-019 3.0399e-008 1.0932e-023 4.0447e-019 Ra-228 5.1156e-025 1.8928e-014 6.8065e-030 2.5184e-025 Rb-86 5.5968e+001 2.0708e+012 7.4466e-004 2.7553e+001 Rb-87 1.3272e-009 4.9107e+001 1.7659e-014 6.5337e-010 Rb-88 2.5572e-069 9.4615e-059 3.4024e-074 1.2589e-069 Rb-89 Rh-103m 5.4884e+002 2.0307e+013 7.3024e-003 2.7019e+002 Rh-105 5.6372e-004 2.0858e+007 7.5004e-009 2.7751e-004 Rh-105m 2.6799e-047 9.9156e-037 3.5657e-052 1.3193e-047 Rh-106 4.3799e+002 1.6206e+013 5.8275e-003 2.1562e+002 Rn-219 5.9056e-023 2.1851e-012 7.8575e-028 2.9073e-023 Rn-220 3.9948e-024 1.4781e-013 5.3152e-029 1.9666e-024 Rn-222 5.8882e-019 2.1786e-008 7.8343e-024 2.8987e-019 Ru-103 5.4974e+002 2.0340e+013 7.3144e-003 2.7063e+002 Ru-105 1.0908e-046 4.0358e-036 1.4513e-051 5.3697e-047 Ru-106 4.3799e+002 1.6206e+013 5.8275e-003 2.1562e+002 Sb-124 2.1565e+001 7.9792e+011 2.8693e-004 1.0616e+001 Sb-125 2.4874e+002 9.2032e+012 3.3095e-003 1.2245e+002 Sb-126 3.2858e+000 1.2157e+011 4.3718e-005 1.6176e+000 Sb-127 6.1252e+000 2.2663e+011 8.1497e-005 3.0154e+000 Sb-129 2.0339e-046 7.5256e-036 2.7062e-051 1.0013e-046 Sm-147 3.6159e-012 1.3379e-001 4.8110e-017 1.7801e-012 Sm-151 2.8200e-004 1.0434e+007 3.7521e-009 1.3883e-004 Sm-153 6.5677e-004 2.4300e+007 8.7384e-009 3.2332e-004 Sr-89 2.4309e+003 8.9944e+013 3.2344e-002 1.1967e+003 Sr-90 5.2141e+002 1.9292e+013 6.9374e-003 2.5668e+002 Sr-91 7.0245e-020 2.5991e-009 9.3463e-025 3.4581e-020 Sr-92 5.2710e-077 1.9503e-066 7.0132e-082 2.5949e-077.

Tc-99 3.2248e-005 1.1932e+006 4.2906e-010 1.5875e-005 Tc-99m 5.0436e-001 1.8661e+010 6.7106e-006 2.4829e-001 Tc-101

Page  : 4 Attachment 6 to PSL-ENG-SENS-04-037, Rev. 0 DOS File: SL2MS07.MS5 Page 28 of 121 Run Date: January 10, 2003 Run Time: 10:05:44 PM Duration: 00:01:06 Nuclide curies becouerels UCi/Cm3 Te-125m 5.6443e+001 2.0884e+012 7.5099e-004 2.7786e+001 Te-127 1.6132e+002 5.9688e+012 2.1464e-003 7.9416e+001 Te-127m 1.5799e+002 5.8458e+012 2.1022e-003 7.7780e+001 Te-129 1.8982e+002 7.0232e+012 2.5255e-003 9.3445e+001 Te-129m 3.0134e+002 1.1150e+013 4.0094e-003 1.4835e+002 Te-131 2.1822e-005 8.0743e+005 2.9035e-010 1.0743e-005 Te-131m 9.6934e-005 3.5866e+006 1.2897e-009 4.7720e-005 Te-132 2.5649e+001 9.4903e+011 3.4127e-004 1.2627e+001 Te-133 2.2828e-232 8.4463e-222 3.0373e-237 1.1238e-232 Te-133m 1.3614e-231 5.0370e-221 1.8113e-236 6.7019e-232 Te-134 1.2970e-307 4.7991e-297 1.7257e-312 6.3852e-308 Th-227 3.0927e-023 1.1443e-012 4.1150e-028 1.5225e-023 Th-228 Th-229 4.3543e-020 1.6111e-009 5.7934e-025 2.1436e-020 Th-230 6.7060e-014 2.4812e-003 8.9225e-019 3.3013e-014 Th-231 4.1528e-012 1.5366e-001 5.5254e-017 2.0444e-012 Th-232 4.3839e-022 1.6220e-011 5.8328e-027 2.1581e-022 Th-234 1.3637e-020 5.0455e-010 1.8144e-025 6.7132e-021 Tl-207 5.2946e-023 1.9590e-012 7.0446e-028 2.6065e-023 Tl-208 9.2514e-025 3.4230e-014 1.2309e-029 4.5544e-025 Tl-209 1.5913e-023 5.8879e-013 2.1173e-028 7.8340e-024 U-233 1.3118e-017 4.8536e-007 1.7453e-022 6.4578e-018 U-234 1.8359e-007 6.7930e+003 2.4428e-012 9.0382e-008 U-235 4.3796e-012 1.6205e-001 5.8272e-017 2.1561e-012 U-236 2.1933e-010 8.1153e+000 2.9182e-015 1.0798e-010 U-237 5.3458e-004 1.9779e+007 7.1127e-009 2.6317e-004 U-238 4.2689e-020 1.5795e-009 5.6798e-025 2.1015e-020 Xe-131m 1.5002e+005 5.5507e+015 1.9960e+000 7.3853e+004 Xe-133 2.9564e+006 1.0939e+017 3.9335e+001 1.4554e+006 Xe-133m 3.7482e+002 1.3868e+013 4.9871e-003 1.8452e+002 Xe-135 1.3361e-016 4.9436e-006 1.7777e-021 6.5776e-017 Xe-135m 6.0583e-029 2.2416e-018 8.0606e-034 2.9824e-029 Xe-138 Y-90 5.2132e+002 1.9289e+013 6.9363e-003 2.5664e+002 Y-91 5.3420e+001 1.9766e+012 7.1077e-004 2.6298e+001 Y-91m 4.4173e-020 1.6344e-009 5.8773e-025 2.1746e-020 Y-92 8.9776e-058 3.3217e-047 1.1945e-062 4.4196e-058 Y-93 2.0518e-020 7.5917e-010 2.7300e-025 1.OlOle-020 Zr-93 2.5709e-008 9.5125e+002 3.4207e-013 1.2657e-008 Zr-95 4.9302e+001 1.8242e+012 6.5597e-004 2.4271e+001 Zr-97 1.0208e-011 3.7769e-001 1.3582e-016 5.0253e-012 Buildup The material reference is : Shield 3 Integration Parameters Radial 20 Circumferential 20 Y Direction (axial) 40 Results

Page  : 5 Attachment 6 to PSL-ENG-SENS-04-037. Rev. 0 DOS File: SL2MS07.MS5 Page 29 of 121 Run Date: January 10, 2003 Run Time: 10:05:44 PM Duration: 00:01:06 Enercy Activity Fluence Rate Fluence Rate Exposure Rate ExDosure Rate MeV photons/sec MeV/cm2 /sec MeV/CM2Lggec MR/hr mR/hr 0o Buildue With Buildup No Buildup With Buildup 0.015 7.267e+09 0.OOOe+00 7.308e-27 0.OOOe+00 6.268e-28 0.02 1.742e+12 O.OO0e+00 2.756e-24 0.OOOe+00 9.547e-26 0.03 5.556e+16 4.192e-306 1.944e-19 4.155e-308 1.927e-21 0.04 8.849e+12 5.616e-146 8.210e-23 2.484e-148 3.631e-25 0.05 2.080e+11 1.482e-88 6.309e-24 3.949e-91 1.681e-26 0.06 4.874e+12 7.658e-61 1.061e-21 1.521e-63 2.108e-24 0.08 4.016e+16 2.396e-35 2.080e-17 3.792e-38 3.291e-20 0.1 4.648e+11 5.932e-32 1.113e-21 9.075e-35 1.702e-24 0.15 1.199e+14 7.838e-22 2.377e-18 1.291e-24 3.914e-21 0.2 8.749e+13 9.882e-19 1.824e-15 1.744e-21 3.219e-18 0.3 6.122e+13 2.427e-15 2.934e-12 4.603e-18 5.566e-15 0.4 2.799e+14 1.796e-12 1.219e-09 3.500e-15 2.374e-12 0.5 2.595e+14 6.766e-11 2.789e-08 1.328e-13 5.475e-11 0.6 1.155e+15 5.387e-09 1.451e-06 1.051e-11 2.832e-09 0.8 7.119e+14 2.515e-07 3.541e-05 4.784e-10 6.736e-08 1.0 6.519e+13 5.465e-07 4.685e-05 1.007e-09 8.637e-08 1.5 7.839e+13 1.266e-04 4.849e-03 2.131e-07 8.158e-06 2.0 6.611e+11 2.685e-05 6.410e-04 4.152e-08 9.912e-07 3.0 2.122e+12 3.826e-03 5.128e-02 5.191e-06 6.957e-05 4.0 2.727e-126 4.365e-140 4.147e-139 5.400e-143 5.130e-142 5.0 1.357e-61 8.961e-75 6.659e-74 1.027e-77 7.634e-77 TOTALS: 9.856e+16 3.981e-03 5.685e-02 5.447e-06 7.888e-05

MicroShield v5.*05 (5.05-0000) Pg 0oRev.20 Attacment 6 to PSL-ENG-SENS-04-037, Grove Engineering Page  : 1 File Ref:

DOS File: SL2MS08.MS5 Date:

Run Date: January 10, 2003 By:

Run Time: 10:07:51 PM Checked:

Duration: 00:01:06 Case

Title:

s12ms08

Description:

St. Lucie Unit 2 LOCA (Containment to CR) - 1.8083 h Geometry: 7 - Cylinder Volume - Side Shields Source Dimensions Height 5.3e+3 cm 172 ft 5.0 in Radius 2.le+3 cm 70 ft Dose Points Y. z

1. 1 3.26e+03 cm 1402.08 cm 0 cm 106 ft 10.7 in 46 ft 0.0 in Shields shield Name, DI?~nQrsjior 14terak3, Penstity Source 7.52e+10 cm3 Water 0.000598 Shield 1 4.877 cm Iron 7.86 Shield 2 117.043 cm Air 0.00122 Shield 3 91.44 cmConcrete2.35 Transition 545.287 cm Air 0.00122 Shield 5 60.96 cmConcrete2.35 Air Gap Air 0.00122 source Input Grouping Method : Standard Indices Number of Groups : 25 Lower Energy Cutoff : 0.015 Photons < 0.015 : Excluded Library : Grove uqia~ce, ,qr~ie~sL g/.cr 3 .

Am-241 8.9217e-001 3.3010e+010 1.1871e-005 4.3921e-001 Am-242 3.9897e+002 1.4762e+013 5.3084e-003 1.9641e+002 Ba-137m 6.3790e+005 2.3602e+016 8.4874e+000 3.1403e+005 Ba-139 2.1801e+005 8.0663e+015 2.9006e+000 1.0732e+005 Ba-140 5.1966e+005 1.9227e+016 6.9142e+000 2.5582e+005 Ba-141 8.0069e+003 2.9626e+014 1.0653e-001 3.9417e+003 Br-82 4.3382e+004 1.6051e+015 5.7721e-001 2.1357e+004 Br-83 3.6434e+005 1.3481e+016 4.8476e+000 1.7936e+005 Br-84 9.8614e+004 3.6487e+015 1.3121e+000 4.8547e+004 Ce-141 1.2523e+004 4.6336e+014 1.6663e-001 6.1651e+003 Ce-143 1.0990e+004 4.0663e+014 1.4622e-001 5.4102e+003 Ce-144 1.0525e+004 3.8943e+014 1.4004e-001 5.1814e+003 Cm-242 2.9005e+002 1.0732e+013 3.8591e-003 1. 4279e+002 Cm-244 4.3641e+001 1.6147e+012 5.8065e-004 2.1484e+001 Cs-134 1.3738e+006 5.0829e+016 1.8278e+001 6.7629e+005 Cs-134m 1.9997e+005 7.3989e+015 2.6606e+000 9.8443e+004 Cs-136 3.6850e+005 1.3635e+016 4.9030e+000 1.8141e+005 Cs-137 6.7690e+005 2.5045e+016 9.0063e+000 3.3323e+005 Cs-138 1.3804e+006 5.1075e+016 1.8367e+001 6.7956e+005 Eu-154 6.6559e+001 2.4627e+012 8.8558e-004 3.2766e+001 Eu-155 4.5091e+001 1.6684e+012 5.9994e-004 2.2198e+001

Page  : 2 Attachment 6 to PSL-ENG-SENS-04-037, Rev. 0 DOS File: SL2MS08.MS5 Page 31 of 121 Run Date: January 10, 2003 Run Time: 10:07:51 PM Duration: 00:01:06 Nuclide curies beccruergla UCi/cm3 Ba/cm3 Eu-156 1.1759e+003 4.3508e+013 1.5645e-002 5.7888e+002 I-130 2.9867e+005 1.1051e+016 3.9739e+000 1.4703e+005 I-131 5.4698e+006 2.0238e+017 7.2777e+001 2.6927e+006 I-132 7.1563e+006 2.6478e+017 9.5216e+001 3.5230e+006 I-133 1.0162e+007 3.7599e+017 1.3521e+002 5.0026e+006 1-134 4.8826e+006 1.8066e+017 6.4964e+001 2.4037e+006 I-135 8.2518e+006 3.0532e+017 1.0979e+002 4.0623e+006 Kr-83m 6.8107e+006 2.5200e+017 9.0618e+001 3.3529e+006 Kr-85 1.1435e+006 4.2311e+016 1.5215e+001 5.6295e+005 Kr-85m 1.3387e+007 4.9532e+017 1.7812e+002 6.5903e+006 Kr-87 1.2539e+007 4.6394e+017 1.6683e+002 6.1728e+006 Kr-88 3.0338e+007 1.1225e+018 4.0365e+002 1.4935e+007 La-140 8.1974e+003 3.0330e+014 1.0907e-001 4.0355e+003 La-141 4.8523e+003 1.7954e+014 6.4561e-002 2.3888e+003 La-142 2.1064e+003 7.7938e+013 2.8026e-002 1.0370e+003 Mo-99 7.1418e+004 2.6425e+015 9.5023e-001 3.5159e+004 Nb-95 5.0562e+003 1.8708e+014 6.7274e-002 2.4891e+003 Nb-95m 3.5694e+001 1.3207e+012 4.7492e-004 1.7572e+001 Nb-97 1.9470e+003 7.2040e+013 2.5905e-002 9.5850e+002 Nd-147 1.9869e+003 7.3515e+013 2.6436e-002 9.7814e+002 Np-238 5.5699e+003 2.0609e+014 7.4109e-002 2.7420e+003 Np-239 1.9863e+005 7.3492e+015 2.6428e+000 9.7783e+004 Pd-109 1.7795e+004 6.5842e+014 2.3677e-001 8.7604e+003 Pm-147 4.9203e+002 1.8205e+013 6.5466e-003 2.4222e+002 Pm-148 9.0835e+002 3.3609e+013 1.2086e-002 4.4717e+002 Pm-148m 1.1768e+002 4.3541e+012 1.5657e-003 5.7932e+001 Pm-149 1.9129e+003 7.0778e+013 2.5452e-002 9.4172e+002 Pm-151 6.6859e+002 2.4738e+013 8.8957e-003 3.2914e+002 Pr-143 4.5094e+003 1.6685e+014 5.9998e-002 2.2199e+003 Pr-144 7.1026e+003 2.6280e+014 9.4502e-002 3.4966e+003 Pr-144m 1.5636e+002 5.7854e+012 2.0804e-003 7.6975e+001 Pu-238 5.8064e+001 2.1484e+012 7.7255e-004 2.8584e+001 Pu-239 3.9674e+000 1.4679e+011 5.2787e-005 1.9531e+000 Pu-240 6.6892e+000 2.4750e+011 8.9001e-005 3.2930e+000 Pu-241 1.6847e+003 6.2334e+013 2.2415e-002 8.2937e+002 Pu-243 4.8621e+003 1.7990e+014 6.4691e-002 2.3936e+003 Rb-86 1.2344e+004 4.5672e+014 1.6424e-001 6.0767e+003 Rb-88 1.1920e+007 4.4104e+017 1.5860e+002 5.8681e+006 Rb-89 2.3147e+004 8.5644e+014 3.0798e-001 1.1395e+004 Rh-103m 6.6782e+004 2.4709e+015 8.8855e-001 3.2876e+004 Rh-105 4.8103e+004 1.7798e+015 6.4002e-001 2.3681e+004 Rh-106 5.8493e+004 2.1642e+015 7.7826e-001 2.8796e+004 Ru-103 6.8293e+004 2.5268e+015 9.0865e-001 3.3620e+004 Ru-105 3.9455e+004 1.4598e+015 5.2496e-001 1.9423e+004 Ru-106 3.3980e+004 1.2573e+015 4.5211e-001 1.6728e+004 Sb-124 2.2320e+003 8.2583e+013 2.9697e-002 1.0988e+003 Sb-125 1.8618e+004 6.8885e+014 2.4771e-001 9.1654e+003 Sb-126 1.2835e+003 4.7490e+013 1.7077e-002 6.3186e+002 Sb-127 9.8219e+004 3.6341e+015 1.3068e+000 4.8352e+004 Sb-129 2.0759e+005 7.6810e+015 2.7621e+000 1.0220e+005 Sm-153 2.0521e+003 7.5926e+013 2.7303e-002 1.0102e+003 Sr-89 2.6868e+005 9.9413e+015 3.5749e+000 1.3227e+005 Sr-90 3.8311e+004 1.4175e+015 5.0974e-001 1.8860e+004

Page  : 3 Attachment 6 to PSL-ENG-SENS-04-037, Rev. 0 DOS File: SL2MS08.MS5 Page 32 of 121 Run Date: January 10, 2003 Run Time: 10:07:51 PM Duration: 00:01:06 Nuclide curies beccuerala uCi/cm3 Bla/CM3 Sr-91 2.9479e+005 1.0907e+016 3.9222e+000 1.4512e+005 Sr-92 2.3162e+005 8.5699e+015 3.0817e+000 1.1402e+005 Tc-99m 3.3563e+002 1.2418e+013 4.4656e-003 1.6523e+002 Tc-101 6.3626e+004 2.3542e+015 8.4656e-001 3.1323e+004 Te-125m 4.0897e+003 1.5132e+014 5.4414e-002 2.0133e+003 Te-127 9.8370e+004 3.6397e+015 1.3088e+000 4.8427e+004 Te-127m 1.3409e+004 4.9614e+014 1.7841e-001 6.6013e+003 Te-129 2.3119e+005 8.5542e+015 3.0761e+000 1.1382e+005 Te-129m 4.0741e+004 1.5074e+015 5.4207e-001 2.0056e+004 Te-131 5.9479e+004 2.2007e+015 7.9138e-001 2.9281e+004 Te-131m 1.1438e+005 4.2319e+015 1.5218e+000 5.6307e+004 Te-132 1.0941e+006 4.0481e+016 1.4557e+001 5.3861e+005 Te-133 2.6303e+004 9.7320e+014 3.4996e-001 1.2949e+004 Te-133m 1.4057e+005 5.2012e+015 1.8704e+000 6.9204e+004 Te-134 2.0380e+005 7.5407e+015 2.7117e+000 1.0033e+005 Xe-131m 8.5104e+005 3.1488e+016 1.1323e+001 4.1896e+005 Xe-133 1.4777e+008 5.4675e+018 1.9661e+003 7.2746e+007 Xe-133m 4.6959e+006 1.7375e+017 6.2480e+001 2.3118e+006 Xe-135 5.0811e+007 1.8800e+018 6.7605e+002 2.5014e+007 Xe-135m 1.0773e+007 3.9862e+017 1.4334e+002 5.3037e+006 Xe-138 5.8919e+005 2.1800e+016 7.8393e+000 2.9005e+005 Y-90 5.2681e+002 1.9492e+013 7.0093e-003 2.5934e+002 Y-91 3.5411e+003 1.3102e+014 4.7115e-002 1.7433e+003 Y-91m 3.8221e+004 1.4142e+015 5.0854e-001 1.8816e+004 Y-92 1.7852e+004 6.6051e+014 2.3752e-001 8.7883e+003 Y-93 3.8292e+003 1.4168e+014 5.0948e-002 1.8851e+003 Zr-95 4.9988e+003 1.8496e+014 6.6510e-002 2.4609e+003 Zr-97 4.6448e+003 1.7186e+014 6.1800e-002 2.2866e+003 Buildup The material reference is : Shield 3 Integration Parameters Radial 20 Circumferential 20 Y Direction (axial) 40 Results Eneroy Activity Fluence Rate Fluence Rate Exposure Rate Exposure Rate MeV photons/sec MeV/CM2/SeC MeV/CMm!LSe mR/hr mnhhr No Buildup With Buildu= No Buildup With Buildup 0.015 7.248e+12 0.OOOe+00 7.288e-24 0.OOOe+00 6.252e-25 0.02 3.461e+14 0.OOOe+00 5.476e-22 O.OOOe+00 1.897e-23 0.03 2.971e+18 2.241e-304 1.039e-17 2.221e-306 1.030e-19 0.04 1.604e+15 1.018e-143 1.489e-20 4.503e-146 6.583e-23 0.05 5.337e+15 3.803e-84 1.619e-19 1.013e-86 4.312e-22 0.06 1.888e+15 2.966e-58 4.110e-19 5.892e-61 8.164e-22 0.08 2.015e+18 1.202e-33 1.044e-15 1.902e-36 1.651e-18 0.1 1.Olle+16 1.291e-27 2.421e-17 1.975e-30 3.705e-20 0.15 4.351e+17 2.844e-18 8.623e-15 4.682e-21 1.420e-17 0.2 2.065e+18 2.333e-14 4.305e-11 4.117e-17 7.598e-14

Page  : 4 Attachment 6 to PSL-ENG-SENS-04-037, Rev. 0 DOS File: SL2MS08.MS5 Page 33 of 121 Run Date: January 10, 2003 Run Time: 10:07:51 PM Duration: 00:01:06 Enerov Activity Fluence Rate Fluence Rate Exposure Rate Exposure Rate MeV photons/sec MeV/CM2/sec MeV/cm2 /sec mR/hr mR/hr No Build=s With Buildup No Buildup With Buildup 0.3 1.325e+17 5.253e-12 6.351e-09 9.964e-15 1.205e-11 0.4 5.033e+17 3.231e-09 2.191e-06 6.295e-12 4.270e-09 0.5 8.231e+17 2.146e-07 8.848e-05 4.213e-10 1.737e-07 0.6 5.990e+17 2.794e-06 7.525e-04 5.453e-09 1.469e-06 0.8 9.850e+17 3.480e-04 4.900e-02 6.620e-07 9.320e-05 1.0 4.300e+17 3.605e-03 3.091e-01 6.646e-06 5.697e-04 1.5 5.160e+17 8.336e-01 3.192e+01 1.403e-03 5.370e-02 2.0 8.711e+17 3.538e+01 8.446e+02 5.472e-02 1.306e+00 3.0 9.081e+16 1.638e+02 2.195e+03 2.222e-01 2.977e+00 4.0 2.730e+14 4.369e+00 4.151e+01 5.406e-,03 5.135e-02 5.0 6.324e+14 4.177e+01 3.104e+02 4.788e-,02 3.559e-01 TOTALS: 1.246e+19 2.461e+02 3.423e+03 3.316e-01 4.745e+00

Attachment 6 to PSL-ENG-SENS-04-037. Rev. 0 MicroShield v5.05 (5.05-0000) Page 34 of121 Grove Engineering Page  : 1 File Ref:

DOS File: SL2FILO1.MS5 Date:

Run Date: January 10, 2003 By:

Run Time: 10:13:22 AM Checked:

Duration: 00:00:02 Case

Title:

sl2fil0l

Description:

St. Lucie Unit 2 LOCA (Filter to Control Room) - 30 min Geometry: 4 - Rectangular Area - Vertical Source Dimensions Width 152.4 cm 5 ft 0.0 in Height 213.36 cm 7 ft 0.0 in Dose Points Z.

1. 1 262.128 cm 60.96 cm 76.2 cm 8 ft 7.2 in 2 ft 2 ft 6.0 in Shields Shield Name Dimension Material Density Shield 1 79.248 cm Air 0.00122 Shield 2 30.48 cm Concrete 2.35 Air Gap Air 0.00122 Source Input Grouping Method : Standard Indices Number of Groups : 25 Lower Energy Cutoff : 0.015 Photons < 0.015 : Excluded Library : Grove Nuclide curies becouerels UCi/CM2 BDa/cm2 Ba-137m 5.1337e-004 1.8995e+007 1.5788e-002 5.8416e+002 Br-82 2.3072e-005 8.5365e+005 7.0954e-004 2.6253e+001 Br-83 2.7538e-004 1.0189e+007 8.4690e-003 3.1335e+002 Br-84 2.7993e-004 1.0357e+007 8.6088e-003 3.1853e+002 Cs-134 9.6217e-004 3.5600e+007 2.9591e-002 1.0949e+003 Cs-134m 1. 9109e-004 7.0703e+006 5.8767e-003 2.1744e+002 Cs-136 2.5883e-004 9.5767e+006 7.9601e-003 2.9452e+002 Cs-137 4.7407e-004 1.7541e+007 1.4580e-002 5.3944e+002 Cs-138 5.9594e-003 2.2050e+008 1.8327e-001 6.7812e+003 1-130 1.6654e-004 6.1618e+006 5.1217e-003 1.8950e+002 1-131 2.8430e-003 1.0519e+008 8.7434e-002 3.2351e+003 1-132 3.6159e-003 1.3379e+008 1.1120e-001 4.1146e+003 I-133 5.4292e-003 2.0088e+008 1.6697e-001 6.1779e+003 I-134 4.3077e-003 1.5938e+008 1.3248e-001 4.9017e+003 I-135 4.9027e-003 1.8140e+008 1.5078e-001 5.5788e+003 Rb-86 8.6625e-006 3.2051e+005 2.6641e-004 9.8570e+000 Rb-88 4.6429e-003 1.7179e+008 1.4279e-001 5.2832e+003 Rb-89 5.6831e-004 2.1027e+007 1.7478e-002 6.4668e+002 Sr-89 2.2853e-007 8.4557e+003 7.0283e-006 2.6005e-001 Buildup The material reference is : Shield 2 Integration Parameters Z Direction 20

.Y Direction 20

Page 2 Attachment 6 to PSL-ENG-SENS-04-037, Rev. 0 DOS File: SL2FILO1.MS5 Page 35 of 121 Run Date: January 10, 2003 Run Time: 10:13:22 AM Duration: 00:00:02 Results Enerocr Activity Fluence Rate Fluence Rate Exposure Rate Exposure Rate MeV iphotons/=e NeV/CM2/sec MeV/CM2/sec mR/hr mR/hr No Buildup With Buildup No Buildup With Buildup 0.03 1.653e+07 2.439e-37 8.782e-27 2.417e-39 8.704e-29 0.04 1.061e+06 2.679e-20 1.086e-19 1.185e-22 4.801e-22 0.06 1.194e+06 9.934e-11 1.274e-09 1.973e-13 2.530e-12 0.08 3.356e+06 9.071e-08 2.176e-06 1.436e-10 3.444e-09 0.1 3.313e+05 1.024e-07 3.607e-06 1.566e-10 5.518e-09 0.15 1.339e+07 5.975e-05 2.729e-03 9.840e-08 4.494e-06 0.2 1.568e+07 2.806e-04 1.224e-02 4.952e-07 2.160e-05 0.3 2.586e+07 2.599e-03 8.384e-02 4.930e-06 1.590e-04 0.4 1.334e+08 4.215e-02 9.970e-01 8.213e-05 1.943e-03 0.5 3.445e+08 2.556e-01 4.631e+00 5.018e-04 9.089e-03 0.6 3.067e+08 4.469e-01 6.458e+00 8.723e-04 1.260e-02 0.8 5.303e+08 2.154e+00 2.203e+01 4.097e-03 4.189e-02 1.0 2.871e+08 2.495e+00 1.967e+01 4.598e-03 3.627e-02 1.5 3.295e+08 1.042e+01 5.328e+01 1.753e-02 8.964e-02 2.0 1.168e+08 8.423e+00 3.333e+01 1.302e-02 5.155e-02 3.0 2.685e+07 5.406e+00 1.570e+01 7.334e-03 2.130e-02 4.0 9.828e+05 3.740e-01 9.004e-01 4.627e-04 1.114e-03 5.0 2.463e+05 1.462e-01 3.107e-01 1.676e-04 3.562e-04 TOTALS: 2.154e+09 3.016e+01 1.574e+02 4.867e-02 2.659e-01

5*05 MicroShield 14ico~held 5.0 (5 .05-0000 )

(5-5-000)Page 36 Rev.

Attachment 6 to PSL-ENG-SENS-04-037, of 1210 Grove Engineering Page  : 1 File Ref:

DOS File: SL2FIL02.MS5 Date:

Run Date: January 10, 2003 By:

Run Time: 10:14:52 AM Checked:

Duration: 00:00:02 Case

Title:

sl2filO2

Description:

St. Lucie Unit 2 LOCA (Filter to Control Room) - 2 hr Geometry: 4 - Rectangular Area - Vertical Source Dimensions Width 152.4 cm 5 ft 0.0 in Height 213.36 cm 7 ft 0.0 in Dose Points

1. 1 262.128 cm 60.96 cm 76.2 cm 8 ft 7.2 in 2 ft 2 ft 6.0 in Shields Shield Name pimension Material Density Shield 1 79.248 cm Air 0.00122 Shield 2 30.48 cm Concrete 2.35 Air Gap Air 0.00122 Source Input Grouping Method : Standard Indices Number of Groups : 25 Lower Energy Cutoff : 0.015 Photons < 0.015 : Excluded Library : Grove Nuclide becouerels UCi/CM2_ Ba/cm!

Am-241 1.0105e-008 3.7389e+002 3.1077e-007 1.1498e-002 Am-242 4.4809e-006 1.6579e+005 1.3780e-004 5.0988e+000 Ba-137m 1.181le-002 4.3701e+008 3.6323e-001 1.3440e+004 Ba-139 2.2419e-003 8.2952e+007 6.8949e-002 2.5511e+003 Ba-140 5.8823e-003 2.1764e+008 1.8090e-001 6.6934e+003 Ba-141 5.8614e-005 2.1687e+006 1.8026e-003 6.6696e+001 Br-82 6.4612e-004 2.3906e+007 1.9871e-002 7.3522e+002 Br-83 5.1523e-003 1.9063e+008 1.5845e-001 5.8627e+003 Br-84 1.1474e-003 4.2453e+007 3.5287e-002 1.3056e+003 Ce-141 1.4181e-004 5.2468e+006 4.3611e-003 1.6136e+002 Ce-143 1.2392e-004 4.5851e+006 3.8111e-003 1.4101e+002 Ce-144 1.1919e-004 4.4100e+006 3.6655e-003 1.3562e+002 Cm-242 3.2846e-006 1.2153e+005 1.0102e-004 3.7376e+000 Cm-244 4.942le-007 1.8286e+004 1.5199e-005 5.6236e-001 Cs-134 2.1655e-002 8.0123e+008 6.6598e-001 2.4641e+004 Cs-134m 3.0110e-003 1.1141e+008 9.2600e-002 3.4262e+003 Cs-136 5.8064e-003 2.1484e+008 1.7857e-001 6.6071e+003 Cs-137 1.0670e-002 3.9480e+008 3.2815e-001 1.2142e+004 Cs-138 4.5551e-002 1.6854e+009 1.4009e+000 5.1832e+004 Eu-154 7.5375e-007 2.7889e+004 2.3181e-005 8.5769e-001 Eu-155 5.1063e-007 1.8893e+004 1.5704e-005 5.8104e-001 Eu-156 1.3311e-005 4.9252e+005 4.0938e-004 1.5147e+001 I-130 4.4171e-003 1.6343e+008 1.3584e-001 5.0262e+003 I-131 8.1656e-002 3.0213e+009 2.5113e+000 9.2917e+004 I-132 8.5017e-002 3.1456e+009 2.6146e+000 9.6741e+004

Page 2 DOS File: SL2FIL02.MS5 Attachment 6 to PSL-ENG-SENS-04-037, Rev. 0 Page 37 of 121 Run Date: January 10, 2003 Run Time: 10:14:52 AM Duration: 00:00:02 Nucli-de cries becouerecls ,~i /Mj I-133 1.5029e-001 5.5608e+009 4.6221e+000 1.7102e+005 I-134 5.2366e-002 1.9375e+009 1.6105e+000 5.9587e+004 I-135 1.2091e-001 4.4736e+009 3.7184e+000 1.3758e+005 La-140 1.6379e-004 6.0601e+006 5.0371e-003 1.8637e+002 La-141 8.9311e-005 3.3045e+006 2.7467e-003 1.0163e+002 La-142 2.1885e-005 8.0974e+005 6.7305e-004 2.4903e+001 Mo-99 8.0715e-004 2.9865e+007 2.4823e-002 9.1846e+002 Nb-95 5.7259e-005 2.1186e+006 1.7609e-003 6.5154e+001.

Nb-95m 4.0422e-007 1.4956e+004 1.2431e-005 4.5996e-001 Nb-97 2.0034e-005 7.4127e+005 6.1613e-004 2.2797e+001 Nd-147 2.2490e-005 8.3212e+005 6.9165e-004 2.5591e+001 Np-238 6.2912e-005 2.3277e+006 1.9348e-003 7.1587e+001 Np-239 2.2441e-003 8.3031e+007 6.9015e-002 2.5535e+003 Pd-109 1.9953e-004 7.3827e+006 6.1364e-003 2.2705e+002 Pm-147 5.5721e-006 2.0617e+005 1.7137e-004 6.3405e+000 Pm-148 1.0276e-005 3.8021e+005 3.1603e-004 1.1693e+001 Pm-148m 1.3325e-006 4.9301e+004 4.0979e-005 1.5162e+000 Pm-149 2.1609e-005 7.9955e+005 6.6458e-004 2.4589e+001 Pm-151 7.5361e-006 2.7884e+005 2.3177e-004 8.5753e+000 Pr-143 5.1180e-005 1.8937e+006 1.5740e-003 5.8238e+001 Pr-144 1.1331e-004 4.1923e+006 3.4846e-003 1.2893e+002 Pr-144m 2.2212e-006 8.2185e+004 6.8311e-005 2.5275e+000 Pu-238 6.5756e-007 2.4330e+004 2.0223e-005 7.4824e-001 Pu-239 4.4931e-008 1.6624e+003 1.3818e-006 5.1127e-002 Pu-240 7.5752e-008 2.8028e+003 2.3297e-006 8.6198e-002 Pu-241 1.9078e-005 7.0589e+005 5.8673e-004 2.1709e+001 Pu-243 5.3605e-005 1.9834e+006 1.6486e-003 6.0997e+001 Rb-86 1.9452e-004 7.1973e+006 5.9823e-003 2.2134e+002 Rb-88 4.3131e-001 1.5959e+010 1.3265e+001 4.9079e+005 Rb-89 2.1597e-004 7.9908e+006 6.6419e-003 2.4575e+002 Rh-103m 7.5898e-004 2.8082e+007 2.3342e-002 8.6364e+002 Rh-105 5.4435e-004 2.0141e+007 1.6741e-002 6.1942e+002 Rh-106 7.9139e-004 2.9281e+007 2.4338e-002 9.0052e+002 Ru-103 7.7328e-004 2.8611e+007 2.3781e-002 8.7991e+002 Ru-105 4.3363e-004 1.6044e+007 1.3336e-002 4.9342e+002 Ru-106 3.8480e-004 1.4238e+007 1.1834e-002 4.3787e+002 Sb-124 2.5274e-005 9.3512e+005 7.7726e-004 2.8759e+001 Sb-125 2.1084e-004 7.8012e+006 6.4843e-003 2.3992e+002 Sb-126 1.4529e-005 5.3758e+005 4.4683e-004 1.6533e+001 Sb-127 1.1107e-003 4.1095e+007 3.4158e-002 1.2638e+003 Sb-129 2.2797e-003 8.4348e+007 7.0109e-002 2.5940e+003 Sm-153 2.3172e-005 8.5738e+005 7.1264e-004 2.6368e+001 Sr-89 3.0446e-003 1.1265e+008 9.3635e-002 3.4645e+003 Sr-90 4.3386e-004 1.6053e+007 1.3343e-002 4.9369e+002 Sr-91 3.2920e-003 1.2180e+008 1.0124e-001 3.7459e+003 Sr-92 2.4974e-003 9.2404e+007 7.6805e-002 2.8418e+003 Tc-99m 2.1681e-006 8.0221e+004 6.6679e-005 2.4671e+000 Tc-101 7.2027e-004 2.6650e+007 2.2151e-002 8.1959e+002 Te-125m 4.6314e-005 1.7136e+006 1.4244e-003 5.2701e+001 Te-127 1.1133e-003 4.1193e+007 3.4239e-002 1.2668e+003 Te-127m 1.5186e-004 5.6188e+006 4.6703e-003 1.7280e+002 Te-129 2.5628e-003 9.4822e+007 7.8815e-002 2.9162e+003 Te-129m 4.6138e-004 1.7071e+007 1.4189e-002 5.2500e+002

Page 3 Attachment 6 to PSL-ENG-SENS-04-037, Rev. 0 DOS File: SL2FIL02.MS5 Page 38 of 121 Run Date: January 10, 2003 Run Time: 10:14:52 AM Duration: 00:00:02 Nuclide curies becauerels Ba/cm2 Te-131 5.6927e-004 2.1063e+007 1.7507e-002 6.4778e+002 Te-13lm 1.2896e-003 4.7713e+007 3.9659e-002 1.4674e+003 Te-132 1.2369e-002 4.5765e+008 3.8039e-001 1.4075e+004 Te-133 2.5047e-004 9.2675e+006 7.7030e-003 2.8501e+002 Te-133m 1.3786e-003 5.1008e+007 4.2397e-002 1.5687e+003 Te-134 1.9073e-003 7.0568e+007 5.8656e-002 2.1703e+003 Y-90 9.2688e-006 3.4294e+005 2.8505e-004 1.0547e+001 Y-91 4.0897e-005 1.5132e+006 1.2577e-003 4.6536e+001 Y-91m 1.1226e-003 4.1535e+007 3.4524e-002 1.2774e+003 Y-92 5.5547e-004 2.0552e+007 1.7083e-002 6.3207e+002 Y-93 4.2797e-005 1.5835e+006 1.3162e-003 4.8699e+001 Zr-95 5.6605e-005 2.0944e+006 1.7408e-003 6.4410e+001 Zr-97 5.2189e-005 1.9310e+006 1.6050e-003 5.9385e+001 Buildup The material reference is : Shield 2 Integration Parameters Z Direction 20 Y Direction 20 Results Ene~rov Activity Fluence Rate Fluence Rate Exposure Rate Exposure Rate MeV photons/sec MeV/CM2/sec MeV/CM2 Lec mg/hr mR/hr No Buildup With Buildum No Buildu With Buildup 0.015 1.979e+05 3.272e-256 3.023e-29 2.806e-257 2.593e-30 0.02 3.918e+06 2.524e-112 9.414e-28 8.743e-114 3.261e-29 0.03 7.487e+08 1.105e-35 3.978e-25 1.095e-37 3.943e-27 0.04 2.492e+07 6.290e-19 2.549e-18 2.782e-21 1.127e-20 0.05 6.033e+07 5.498e-12 4.221e-11 1.465e-14 1.124e-13 0.06 2.891e+07 2.406e-09 3.085e-08 4.779e-12 6.127e-11 0.08 1.124e+08 3.039e-06 7.290e-05 4.809e-09 1.154e-07 0.1 9.024e+07 2.789e-05 9.824e-04 4.267e-08 1.503e-06 0.15 2.275e+08 1.015e-03 4.635e-02 1.671e-06 7.633e-05 0.2 7.035e+08 1.259e-02 5.493e-01 2.223e-05 9.695e-04 0.3 7.326e+08 7.364e-02 2.375e+00 1.397e-04 4.506e-03 0.4 3.231e+09 1.021e+00 2.414e+01 1.989e-03 4.703e-02 0.5 7.329e+09 5.439e+00 9.852e+01 1.068e-02 1.934e-01 0.6 6.710e+09 9.776e+00 1.413e+02 1.908e-02 2.758e-01 0.8 1.093e+10 4.438e+01 4.538e+02 8.442e-02 8.632e-01 1.0 4.653e+09 4.043e+01 3.189e+02 7.453e-02 5.878e-01 1.5 5.023e+09 1.588e+02 8.121e+02 2.672e-01 1.366e+00 2.0 4.576e+09 3.300e+02 1.306e+03 5.104e-01 2.020e+00 3.0 5.991ei08 1.206e+02 3.503e+02 1.636e-01 4.753e-01 4.0 3.151e+06 1.199e+00 2.887e+00 1.484e-03 3.572e-03 5.0 2.288e+07 1.358e+01 2.887e+01 1.557e-02 3.309e-02 TOTALS: 4.581e+10 7.254e+02 3.540e+03 1.149e+00 5.871e+00

Attachment 6 to PSL-ENG-SENS-04-037, Rev. 0 MicroShield v5.05 (5.05-0000) Page 39 of 121 Grove Engineering

?age  : 1 File Ref:

)OS File: SL2FIL03.MS5 Date:

Run Date: January 10, 2003 By:

Run Time: 10:20:20 AM Checked:

)uration: 00:00:02 Case

Title:

sl2filO3

Description:

St. Lucie Unit 2 LOCA (Filter to Control Room) - 8 hr Geometry: 4 - Rectangular Area - Vertical Source Dimensions Width 152.4 cm 5 ft 0.0 in Height 213.36 cm 7 ft 0.0 in Dose Points

, X X

1. 1 262.128 cm 60.96 cm 76.2 cm 8 ft 7.2 in 2 ft 2 ft 6.0 in Shields Shield N Dimension Material Density Shield 1 79.248 cm Air 0.00122 Shield 2 30.48 cm Concrete 2.35 Air Gap Air 0.00122 Source Input Grouping Method : Standard Indices Number of Groups : 25 Lower Energy Cutoff : 0.015 Photons < 0.015 : Excluded Library : Grove Nulide curies becauerelsA U2i/M2 Am-241 1.5442e-008 5.7135e+002 4.7490e-007 1.7571e-002 Am-242 5.2710e-006 1.9503e+005 1.6210e-004 5.9978e+000 Ba-137m 1.6677e-002 6.1705e+008 5.1289e-001 1.8977e+004 Ba-139 1.6730e-004 6.1901e+006 5.1451e-003 1.9037e+002 Ba-140 8.8495e-003 3.2743e+008 2.7216e-001 1.0070e+004 Br-82 8.5498e-004 3.1634e+007 2.6294e-002 9.7289e+002 Br-83 1.3461e-003 4.9806e+007 4.1398e-002 1.5317e+003 Br-84 6.6693e-007 2.4676e+004 2.0511e-005 7.5890e-001 Ce-141 2.1554e-004 7.9751e+006 6.6288e-003 2.4527e+002 Ce-143 1.6662e-004 6.1650e+006 5.1243e-003 1.8960e+002 Ce-144 1.8166e-004 6.7213e+006 5.5867e-003 2.0671e+002 Cm-242 5.0092e-006 1.8534e+005 1.5405e-004 5.7000e+000 Cm-244 7.5367e-007 2.7886e+004 2.3178e-005 8.5760e-001 Cs-134 3.0526e-002 1.1295e+009 9.3881e-001 3.4736e+004 Cs-134m 1.0118e-003 3.7437e+007 3.1117e-002 1.1513e+003 Cs-136 8.0792e-003 2.9893e+008 2.4847e-001 9.1933e+003 Cs-137 1.5045e-002 5.5666e+008 4.6269e-001 1.7120e+004 Cs-138 3.6600e-005 1.3542e+006 1.1256e-003 4.1647e+001 Eu-154 1.1494e-006 4.2529e+004 3.5350e-005 1.3079e+000 Eu-155 7.7865e-007 2.8810e+004 2.3946e-005 8.8602e-001 Eu-156 2.0070e-005 7.4258e+005 6.1722e-004 2.2837e+001 I-130 4.6971e-003 1.7379e+008 1.4445e-001 5.3448e+003 I-131 1.1903e-001 4.4040e+009 3.6605e+000 1.3544e+005 1-132 3.6750e-002 1.3598e+009 1.1302e+000 4.1818e+004 I-133 1.8342e-001 6.7866e+009 5.6410e+000 2.0872e+005

?age 2 Attachment 6 to PSL-ENG-SENS-04-037. Rev. 0

)OS File: SL2FIL03.MS5 Page 40 of 121 run Date: January 10, 2003 Run Time: 10:20:20 AM

)uration: 00:00:02 Nuclide curies becouerels MCL/mC2 Ba/Cm2 I-134 7.7217e-004 2.8570e+007 2.3747e-002 8.7865e+002 I-135 9.5942e-002 3.5499e+009 2.9506e+000 1.0917e+005 La-140 1.0888e-003 4.0285e+007 3.3485e-002 1.2389e+003 La-141 4.6780e-005 1.7308e+006 1.4387e-003 5.3230e+001 La-142 2.2482e-006 8.3185e+004 6.9142e-005 2.5583e+000 Mo-99 1.1558e-003 4.2763e+007 3.5544e-002 1.3151e+003 Nb-95 8.7316e-005 3.2307e+006 2.6853e-003 9.9357e+001 Nb-95m 6.1583e-007 2.2786e+004 1.8939e-005 7.0075e-001 Nb-97 4.3869e-006 1.6232e+005 1.3492e-004 4.9919e+000 Nd-147 3.3760e-005 1.2491e+006 1.0383e-003 3.8416e+001 Np-238 8.8402e-005 3.2709e+006 2.7187e-003 1.0059e+002 Np-239 3.1794e-003 1.1764e+008 9.7780e-002 3.6179e+003 Pd-109 2.2324e-004 8.2598e+006 6.8655e-003 2.5402e+002 Pm-147 8.5022e-006 3.1458e+005 2.6148e-004 9.6747e+000 Pm-148 1.5177e-005 5.6154e+005 4.6675e-004 1.7270e+001 Pm-148m 2.0235e-006 7.4870e+004 6.2232e-005 2.3026e+000 Pm-149 3.0471e-005 1.1274e+006 9.3710e-004 3.4673e+001 Pm-151 9.9272e-006 3.6731e+005 3.0530e-004 1.1296e+001 Pr-143 7.9297e-005 2.9340e+006 2.4387e-003 9.0231e+001 Pr-144 1.8607e-004 6.8845e+006 5.7224e-003 2.1173e+002 Pr-144m 3.4239e-006 1.2668e+005 1.0530e-004 3.8960e+000 Pu-238 1.0033e-006 3.7123e+004 3.0856e-005 1.1417e+000 Pu-239 6.8586e-008 2.5377e+003 2.1093e-006 7.8044e-002 Pu-240 1.1552e-007 4.2744e+003 3.5528e-006 1.3145e-001 Pu-241 2.9095e-005 1.0765e+006 8.9477e-004 3.3107e+001 Pu-243 3.5321e-005 1.3069e+006 1.0863e-003 4.0192e+001 Rb-86 2.7173e-004 1.0054e+007 8.3568e-003 3.0920e+002 Rb-88 1.4527e-001 5.3751e+009 4.4678e+000 1.6531e+005 Rh-103m 1.1801e-003 4.3663e+007 3.6293e-002 1.3428e+003 Rh-105 7.8526e-004 2.9055e+007 2.4150e-002 8.9355e+002 Rh-106 1.2063e-003 4.4634e+007 3.7099e-002 1.3727e+003 Ru-103 1.1741e-003 4.3441e+007 3.6108e-002 1.3360e+003 Ru-105 2.5918e-004 9.5896e+006 7.9708e-003 2.9492e+002 Ru-106 5.8655e-004 2.1702e+007 1.8039e-002 6.6744e+002 Sb-124 3.8432e-005 1.4220e+006 1.1819e-003 4.3731e+001 Sb-125 3.2149e-004 1.1895e+007 9.8870e-003 3.6582e+002 Sb-126 2.1849e-005 8.0842e+005 6.7195e-004 2.4862e+001 Sb-127 1.6193e-003 5.9914e+007 4.9800e-002 1.8426e+003 Sb-129 1.3276e-003 4.9120e+007 4.0828e-002 1.5106e+003 Sm-153 3.2328e-005 1.1961e+006 9.9422e-004 3.6786e+001 Sr-89 4.6265e-003 1.7118e+008 1.4228e-001 5.2645e+003 Sr-90 6.6164e-004 2.4481e+007 2.0348e-002 7.5288e+002 Sr-91 3.2405e-003 1.1990e+008 9.9658e-002 3.6874e+003 Tc-99m 1.0705e-003 3.9609e+007 3.2923e-002 1.2181e+003 Te-125m 7.0639e-005 2.6136e+006 2.1724e-003 8.0380e+001 Te-127 1.6591e-003 6.1385e+007 5.1023e-002 1.8878e+003 Te-127m 2.3168e-004 8.5722e+006 7.1252e-003 2.6363e+002 Te-129 1.8675e-003 6.9098e+007 5.7434e-002 2.1250e+003 Te-129m 7.0258e-004 2.5995e+007 2.1607e-002 7.9947e+002 Te-131 3.9189e-004 1.4500e+007 1.2052e-002 4.4593e+002 Te-131m 1.7121e-003 6.3346e+007 5.2653e-002 1.9482e+003 Te-132 1.7886e-002 6.6179e+008 5.5007e-001 2.0353e+004 Te-133 4.0320e-006 1.4918e+005 1.2400e-004 4.5880e+000

Page 3 Attachment 6 to PSL-ENG-SENS-04-037, Rev. 0 DOS File: SL2FIL03.MS5 Page 41 of 121 Run Date: January 10, 2003 Run Time: 10:20:20 AM Duration: 00:00:02 Nuclide curies becouerels uCiL/cm Te-133m 2.3257e-005 8.6052e+005 7.1526e-004 22.6465e+001 Te-134 7.4316e-006 2.7497e+005 2.2855e-004 8.4565e+000 Y-90 5.4359e-005 2.0113e+006 1.6718e-003 6.1855e+001 Y-91 7.3797e-005 2.7305e+006 2.2696e-003 8.3973e+001 Y-91m 2.0586e-003 7.6168e+007 6.3310e-002 2.3425e+003 Y-92 1.4057e-003 5.2011e+007 4.3231e-002 1.5996e+003 Y-93 4.3238e-005 1.5998e+006 1.3297e-003 4.9200e+001 Zr-95 8.6090e-005 3.1853e+006 2.6476e-003 9.7962e+001 Zr-97 6.2226e-005 2.3024e+006 1.9137e-003 7.0807e+001 Buildup The material reference is : Shield 2 Integration Parameters Z Direction 20 Y Direction 20 Results Enerory Activity Fluence Rate Fluence Rate Exposure Rate Exposure Rate M~eV photons/ae-c MeV/cm 2 /sec MeV/CM2/sec mg/hr mR/hr No Buildun With Buildup No Buidu With Buildup 0.015 3.583e+05 5.922e-256 5.472e-29 5.080e-257 4.693e-30 0.02 8.145e+06 5.247e-112 1.957e-27 1.818e-113 6.780e-29 0.03 8.876e+08 1.310e-35 4.717e-25 1.298e-37 4.674e-27 0.04 2.975e+07 7.509e-19 3.043e-18 3.321e-21 1.346e-20 0.05 8.725e+07 7.951e-12 6.103e-11 2.118e-14 1.626e-13 0.06 4.026e+07 3.351e-09 4.296e-08 6.655e-12 8.533e-11 0.08 1.375e+08 3.716e-06 8.914e-05 5.880e-09 1.411e-07 0.1 1.180e+08 3.647e-05 1.285e-03 5.580e-08 1.966e-06 0.15 1.279e+08 5.706e-04 2.606e-02 9.397e-07 4.291e-05 0.2 7.445e+08 1.333e-02 5.813e-01 2.352e-05 1.026e-03 0.3 7.503e+08 7.542e-02 2.433e+00 1.431e-04 4.615e-03 0.4 3.926e+09 1.240e+00 2.933e+01 2.416e-03 5.715e-02 0.5 7.020e+09 5.210e+00 9.437e+01 1.023e-02 1.852e-01 0.6 4.479e+09 6.526e+00 9.431e+01 1.274e-02 1.841e-01 0.8 4.680e+09 1.901e+01 1.944e+02 3.616e-02 3.697e-01 1.0 2.511e+09 2.182e+01 1.721e+02 4.023e-02 3.173e-01 1.5 2.474e+09 7.821e+01 4.000e+02 1.316e-01 6.729e-01 2.0 1.633e+09 1.178e+02 4.661e+02 1.821e-01 7.208e-01 3.0 1.540e+08 3.100e+01 9.004e+01 4.206e-02 1.222e-01 4.0 3.950e+03 1.503e-03 3.619e-03 1.860e-06 4.477e-06 5.0 7.707e+06 4.575e+00 9.723e+00 5.244e-03 1.115e-02 TOTALS: 2.982e+10 2.855e+02 1.553e+03 4.630e-01 2.646e+00

MicroShield v5.05 (5.05-0000) v5.5 AAtachiment 6 to PSL-ENG-SENS-04-037, Rev. 0 42 of 121 icrohiel (505-000)Page Grove Engineering Page  : 1 File Ref.:

DOS File: SL2FIL04.MS5 Date:

Run Date: January 10, 2003 By:

Run Time: 10:16:40 AM Checked:

Duration: 00:00:02 Case

Title:

sl2filO4

Description:

St. Lucie Unit 2 LOCA (Filter to Control Room) - 24 hr Geometry: 4 - Rectangular Area - Vertical Source Dimensions Width 152.4 cm 5 ft 0.0 in Height 213.36 cm 7 ft 0.0 in Dose Points Z X

1. 1 262.128 cm 60.96 cm 76.2 cm 8 ft 7.2 in 2 ft 2 ft 6.0 in shields Dimension Material Densitv Shield 1 79.248 cm Air 0.00122 Shield 2 30.48 cm Concrete 2.35 Air Gap Air 0.00122 Source Input Grouping Method : Standard Indices Number of Groups : 25 Lower Energy Cutoff s 0.015 Photons < 0.015 s Excluded Library : Grove NUCli- curies becouerels Uci/cm2 Am-241 1.5602e-008 5.7727e+002 4.7982e-007 1.7754e-002 Am-242 2.6504e-006 9.8064e+004 8.1510e-005 3.0159e+000 Ba-137m 1.6756e-002 6.1997e+008 5.1531e-001 1.9066e+004 Ba-139 5.3847e-008 1.9923e+003 1.6560e-006 6.1272e-002 Ba-140 8.5752e-003 3.1728e+008 2.6372e-001 9.7577e+003 Br-82 6.6635e-004 2.4655e+007 2.0493e-002 7.5824e+002 Br-83 1.3868e-005 5.1311e+005 4.2649e-004 1.5780e+001 Ce-141 2.1373e-004 7.9082e+006 6.5732e-003 2.4321e+002 Ce-143 1.1963e-004 4.4264e+006 3.6792e-003 1.3613e+002 Ce-144 1.8223e-004 6.7424e+006 5.6042e-003 2.0735e+002 Cm-242 5.0279e-006 1.8603e+005 1.5463e-004 5.7213e+000 Cm-244 7.5723e-007 2.8018e+004 2.3288e-005 8.6165e-001 Cs-134 3.0653e-002 1.1342e+009 9.4272e-001 3.4881e+004 Cs-134m 2.2198e-005 8.2133e+005 6.8268e-004 2.5259e+001 Cs-136 7.8364e-003 2.8995e+008 2.4100e-001 8.9171e+003 Cs-137 1.5116e-002 5.5928e+008 4.6487e-001 1.7200e+004 Eu-154 1.1548e-006 4.2727e+004 3.5514e-005 1.3140e+000 Eu-155 7.8219e-007 2.8941e+004 2.4055e-005 8.9005e-001 Eu-156 1.9562e-005 7.2378e+005 6.0160e-004 2.2259e+001 I-130 2.0433e-003 7.5601e+007 6.2838e-002 2.3250e+003 I-131 1.2000e-001 4.4398e+009 3.6903e+000 1.3654e+005 1-132 1.6281e-002 6.0241e+008 5.0072e-001 1.8527e+004 1-133 1.1485e-001 4.2493e+009 3.5320e+000 1.3068e+005 I-134 1.7776e-009 6.5771e+001 5.4668e-008 2.0227e-003 I-135 1.9122e-002 7.0752e+008 5.8808e-001 2.1759e+004

Page 2 Attachment 6 to PSL-ENG-SENS-04-037, Rev. 0 DOS File: SL2FIL04.MS5 Page 43 of 121 Run Date: January 10, 2003 Run Time: 10:16:40 AM Duration: 00:00:02 Nuclide guries becagurels BD/rm2 La-140 2.9312e-003 1.0846e+008 9.0147e-002 3.3354e+003 La-141 2.7926e-006 1.0333e+005 8.5883e-005 3.1777e+000 La-142 1.2179e-009 4.5062e+001 3.7455e-008 1.3858e-003 Mo-99 9.8167e-004 3.6322e+007 3.0190e-002 1.1170e+003 Nb-95 8.7715e-005 3.2454e+006 2.6976e-003 9.9811e+001 Nb-95m 6.1693e-007 2.2826e+004 1.8973e-005 7.0200e-001 Nb-97 1.8616e-006 6.8878e+004 5.7250e-005 2.1183e+000 Nd-147 3.2524e-005 1.2034e+006 1.0002e-003 3.7009e+001 Np-238 7.1407e-005 2.6421e+006 2.1961e-003 8.1254e+001 Np-239 2.6256e-003 9.7146e+007 8.0747e-002 2.9876e+003 Pd-109 9.8206e-005 3.6336e+006 3.0202e-003 1.1175e+002 Pm-147 8.5550e-006 3.1653e+005 2.6310e-004 9.7347e+000 Pm-148 1.4000e-005 5.1800e+005 4.3056e-004 1.5931e+001 Pm-148m 2.0106e-006 7.4393e+004 6.1835e-005 2.2879e+000 Pm-149 2.4844e-005 9.1924e+005 7.6406e-004 2.8270e+001 Pm-151 6.7501e-006 2.4975e+005 2.0759e-004 7.6810e+000 Pr-143 8.1767e-005 3.0254e+006 2.5147e-003 9.3042e+001 Pr-144 1.8666e-004 6.9063e+006 5.7404e-003 2. 1240e+002 Pr-144m 3.4348e-006 1.2709e+005 1.0563e-004 3.9084e+000 Pu-238 1.0093e-006 3.7345e+004 3.1041e-005 1.1485e+000 Pu-239 6.9068e-008 2.5555e+003 2.1241e-006 7.8592e-002 Pu-240 1.1608e-007 4.2949e+003 3.5699e-006 1.3209e-001 Pu-241 2.9231e-005 1.0815e+006 8.9897e-004 3.3262e+001 Pu-243 3.7868e-006 1.4011e+005 1.1646e-004 4.3089e+000 Rb-86 2.6635e-004 9.8549e+006 8.1913e-003 3.0308e+002 Rb-88 1.3432e-003 4.9700e+007 4.1310e-002 1.5285e+003 Rh-103m 1.1722e-003 4.3372e+007 3.6050e-002 1. 3339e+003 Rh-105 6.0086e-004 2.2232e+007 1.8479e-002 6.8372e+002 Rh-106 1.2106e-003 4.4792e+007 3.7231e-002 1.3775e+003 Ru-103 1.1659e-003 4.3139e+007 3.5857e-002 1.3267e+003 Ru-105 2.1423e-005 7.9266e+005 6.5885e-004 2.4378e+001 Ru-106 5.8863e-004 2.1779e+007 1.8103e-002 6.6980e+002 Sb-124 3.832le-005 1.4179e+006 1.1785e-003 4.3605e+001 Sb-125 3.2288e-004 1.1947e+007 9.9298e-003 3.6740e+002 Sb-126 2.115le-005 7.8260e+005 6.5049e-004 2.4068e+001 Sb-127 1.443le-003 5.3393e+007 4.4380e-002 1.6421e+003 Sb-129 1.0238e-004 3.7880e+006 3.1486e-003 1.1650e+002 Sm-153 2.5616e-005 9.4780e+005 7.8780e-004 2.9149e+001 Sr-89 4.6063e-003 1.7043e+008 1.4166e-001 5.2415e+003 Sr-90 6.6478e-004 2.4597e+007 2.0445e-002 7.5646e+002 Sr-91 1.0132e-003 3.7488e+007 3.1160e-002 1.1529e+003 Sr-92 1.3774e-005 5.0964e+005 4.2361e-004 1.5674e+001 Tc-99m 9.4022e-004 3.4788e+007 2.8915e-002 1.0699e+003 Te-125m 7.0999e-005 2.6270e+006 2.1835e-003 8.0789e+001 Te-127 1.5352e-003 5.6801e+007 4.7213e-002 1.7469e+003 Te-127m 2.3295e-004 8.6191e+006 7.1641e-003 2.6507e+002 Te-129 5.6601e-004 2.0943e+007 1.7407e-002 6.4407e+002 Te-129m 6.9778e-004 2.5818e+007 2.1459e-002 7.9400e+002 Te-131 2.7206e-004 1.0066e+007 8.3670e-003 3.0958e+002 Te-131m 1.1886e-003 4.3978e+007 3.6554e-002 1.3525e+003 Te-132 1.5596e-002 5.7704e+008 4.7963e-001 1.7746e+004 Y-90 1.5171e-004 5.6132e+006 4.6656e-003 1.7263e+002 Y-91 8.9500e-005 3.3115e+006 2.7525e-003 1.0184e+002

Page  : 3 DOS File: SL2FIL04.MS5 Attachment 6 to PSL-ENG-SENS-04-037. Rev. 0 Page 44 of 121 Run Date: January 10, 2003 Run Time: 10:16:40 AM Duration: 00:00:02 curies becauerels lUCi /CM2 Y-91m 6.4696e-004 2.3938e+007 1.9897e-002 7.3618e+002 Y-92 1.3412e-004 4.9625e+006 4.1248e-003 1.5262e+002 Y-93 1.4489e-005 5.3611e+005 4.4561e-004 1.6488e+001 Zr-95 8.5881e-005 3.1776e+006 2.6412e-003 9.7724e+001 Zr-97 3.2439e-005 1.2002e+006 9.9762e-004 3.6912e+001 Buildup The material reference is  : Shield 2 Integration Parameters Z Direction 20 Y Direction 20 Results Eneroy Activity Fluence Rate Fluence Rate ExDosure Rate Exoosure Rate Me-V photons/sec MeV/CM2L-&g MeV/CM2m!Is mg3/h mR/hr No Buildup With Builduo No Buildup With Buildup 0.015 1.199e+05 1.982e-256 1.831e-29 1.700e-257 1.570e-30 0.02 7.489e+06 4.825e-112 1.800e-27 1.671e-113 6.234e-29 0.03 7.812e+08 1.153e-35 4.151e-25 1.143e-37. 4.114e-27 0.04 2.831e+07 7.146e-19 2.896e-18 3.161e-21 1.281e-20 0.05 7.607e+07 6.933e-12 5.322e-11 1.847e-14 1.418e-13 0.06 3.859e+07 3.212e-09 4.119e-08 6.380e-12 8.181e-11 0.08 1.366e+08 3.693e-06 8.859e-05 5.844e-09 1.402e-07 0.1 9.811e+07 3.032e-05 1.068e-03 4.639e-08 1.634e-06 0.15 1.082e+08 4.829e-04 2.205e-02 7.953e-07 3.632e-05 0.2 6.020e+08 1.078e-02 4.701e-01 1.902e-05 8.297e-04 0.3 6.105e+08 6.137e-02 1.980e+00 1.164e-04 3.755e-03 0.4 3.736e+09 1.180e+00 2.792e+01 2.300e-03 5.439e-02 0.5 4.281e+09 3.177e+00 5.755e+01 6.236e-03 1.130e-01 0.6 3.278e+09 4.777e+00 6.903e+01 9.324e-03 1.347e-01 0.8 2.605e+09 1.058e+01 1.082e+02 2.012e-02 2.058e-01 1.0 9.566e+08 8.313e+00 6.556e+01 1.532e-02 1.208e-01 1.5 7.366e+08 2.329e+01 1.191e+02 3.918e-02 2.004e-01 2.0 1.118e+08 8.066e+00 3.192e+01 1.247e-02 4.936e-02 3.0 5.271e+06 1.061e+00 3.082e+00 1.440e-03 4.181e-03 4.0 1.183e+00 4.502e-07 1.084e-06 5.569e-10 1.341e-09 5.0 7.126e+04 4.230e-02 8.990e-02 4.849e-05 1.031e-04 TOTALS: 1.820e+10 6.056e+01 4.849e+02 1.066e-01 8.873e-01

Attachment 6 to PSL-ENG-SENS-04-037, Rev. 0 MicroShield v5.05 (5.05-0000) Page 45of 121 Grove Engineering Page  : 1 File Ref:

DOS File: SL2FIL05.MS5 Date:

Run Date: January 10, 2003 By:

Run Time: 10:17:36 AM Checked:

Duration: 00:00:02 Case

Title:

sl2fil05

Description:

St. Lucie Unit 2 LOCA (Filter to Control Room) - 96 hr Geometry: 4 - Rectangular Area - Vertical Source Dimensions Width 152.4 cm 5 ft 0.0 in Height 213.36 cm 7 ft 0.0 in Dose Points

1. 1 262.128 cm 60.96 cm 76.2 cm 8 ft 7.2 in 2 ft 2 ft 6.0 in Shields Shield Name Dimension Material Density Shield 1 79.248 cm Air 0.00122 Shield 2 30.48 cm Concrete 2.35 Air Gap Air 0.00122 Source Input Grouping Method : Standard Indices Number of Groups : 25 Lower Energy Cutoff s 0.015 Photons < 0.015 : Excluded Library : Grove Muclide curies becoruerels uCi/CM2 Am-241 1.5987e-008 5.9152e+002 4.9166e-007 1.8192e-002 Am-242 1.1759e-007 4.3508e+003 3.6164e-006 1.3381e-001 Ba-137m 1.6809e-002 6.2195e+008 5.1695e-001 1.9127e+004 Ba-140 7.2838e-003 2.6950e+008 2.2401e-001 8.2883e+003 Br-82 2.0857e-004 7.7171e+006 6.4144e-003 2.3733e+002 Ce-141 2.0051e-004 7.4188e+006 6.1665e-003 2.2816e+002 Ce-143 2.6367e-005 9.7557e+005 8.1089e-004 3.0003e+001 Ce-144 1.8090e-004 6.6933e+006 5.5634e-003 2.0585e+002 Cm-242 4.9726e-006 1.8399e+005 1.5293e-004 5.6583e+000 Cm-244 7.5700e-007 2.8009e+004 2.3281e-005 8.6139e-001 Cs-134 3.0671e-002 1.1348e+009 9.4326e-001 3.4901e+004 Cs-136 6.7088e-003 2.4822e+008 2.0632e-001 7.6339e+003 Cs-137 1.5164e-002 5.6107e+008 4.6635e-001 1.7255e+004 Eu-154 1.1540e-006 4.2699e+004 3.5491e-005 1.3132e+000 Eu-155 7.8129e-007 2.8908e+004 2.4028e-005 8.8903e-001 Eu-156 1.7059e-005 6.3118e+005 5.2463e-004 1.9411e+001 1-130 4.6377e-005 1.7160e+006 1.4263e-003 5.2773e+001 1-131 1.1933e-001 4.4154e+009 3.6700e+000 1.3579e+005 1-132 8.5136e-003 3.1500e+008 2.6183e-001 9.6876e+003 I-133 1.3417e-002 4.9642e+008 4.1262e-001 1.5267e+004 I-135 1.2945e-005 4.7895e+005 3.9810e-004 1.4730e+001 La-140 6.3784e-003 2.3600e+008 1.9616e-001 7.2580e+003 Mo-99 4.6086e-004 1.7052e+007 1.4173e-002 5.2442e+002 Nb-95 8.7531e-005 3.2387e+006 2.6919e-003 9.9602e+001 Nb-95m 6.0541e-007 2.2400e+004 1.8619e-005 6.8889e-001

,age 2 OS File: SL2FIL05.MS5 Attachment 6 to PSL-ENG-SENS-04-037. Rev. 0 Page 46 of 121

.un Date: January 10, 2003

,un Time: 10:17:36 AM

)uration: 00:00:02 Nuclide curies becouerels UCi/CM2 Nb-97 9.7135e-008 3.5940e+003 2.9873e-006 1.1053e-001 Nd-147 2.6913e-005 9.9579e+005 8.2769e-004 3.0625e+001 Np-238 2.6739e-005 9.8935e+005 8.2234e-004 3.0427e+001 Np-239 1.0858e-003 4.0173e+007 3.3392e-002 1.2355e+003 Pd-109 2.3873e-006 8.8330e+004 7.3419e-005 2.7165e+000 Pm-147 8.6006e-006 3.1822e+005 2.6450e-004 9.7866e+000 Pm-148 9.5338e-006 3.5275e+005 2.9320e-004 1.0849e+001 Pm-148m 1.9120e-006 7.0743e+004 5.8801e-005 2.1756e+000 Pm-149 9.7028e-006 3.5900e+005 2.9840e-004 1.1041e+001 Pm-151 1.1645e-006 4.3086e+004 3.5813e-005 1.3251e+000 Pr-143 7.8747e-005 2.9136e+006 2.4218e-003 8.9606e+001 Pr-144 1.8529e-004 6.8558e+006 5.6985e-003 2.1084e+002 Pr-144m 3.4097e-006 1.2616e+005 1.0486e-004 3.8799e+000 Pu-238 1.0126e-006 3.7464e+004 3.1140e-005 1.1522e+000 Pu-239 6.9480e-008 2.5707e+003 2.1368e-006 7.9061e-002 Pu-240 1.1608e-007 4.2949e+003 3.5699e-006 1.3209e-001 Pu-241 2.9220e-005 1.0811e+006 8.9862e-004 3.3249e+001 Pu-243 1.1504e-010 4.2565e+000 3.5379e-009 1.3090e-004 Rb-86 2.3906e-004 8.8453e+006 7.3521e-003 2.7203e+002 Rh-103m 1.1118e-003 4.1136e+007 3.4192e-002 1.2651e+003 Rh-105 1.4725e-004 5.4481e+006 4.5284e-003 1.6755e+002 Rh-106 1.2038e-003 4.4540e+007 3.7021e-002 1.3698e+003 Ru-103 1.1058e-003 4.0915e+007 3.4008e-002 1.2583e+003 Ru-105 2.0194e-010 7.4718e+000 6.2105e-009 2.2979e-004 Ru-106 5.8531e-004 2.1657e+007 1.8001e-002 6.6603e+002 Sb-124 3.7020e-005 1.3697e+006 1.1385e-003 4.2125e+001 Sb-125 3.2221e-004 1.1922e+007 9.9093e-003 3.6665e+002 Sb-126 1.7885e-005 6.6176e+005 5.5005e-004 2.0352e+001 Sb-127 8.4083e-004 3.1111e+007 2.5859e-002 9.5678e+002 Sb-129 8.5819e-010 3.1753e+001 2.6393e-008 9.7653e-004 Sm-153 8.7984e-006 3.2554e+005 2.7059e-004 1.0012e+001 Sr-89 4.4205e-003 1.6356e+008 1.3595e-001 5.0301e+003 Sr-90 6.6466e-004 2.4592e+007 2.044le-002 7.5631e+002 Sr-91 5.2991e-006 1.9607e+005 1.6297e-004 6.0298e+000 Tc-99m 4.4474e-004 1.6455e+007 1.3678e-002 5.0607e+002 Te-125m 7.1088e-005 2.6303e+006 2.1862e-003 8.0891e+001 Te-127 9.9842e-004 3.6942e+007 3.0705e-002 1.1361e+003 Te-127m 2.3225e-004 8.5933e+006 7.1426e-003 2.6428e+002 Te-129 4.2958e-004 1.5894e+007 1.3211e-002 4.8882e+002 Te-129m 6.5602e-004 2.4273e+007 2.0175e-002 7.4649e+002 Te-131 5.1546e-005 1.9072e+006 1.5853e-003 5.8654e+001 Te-131m 2.2520e-004 8.3324e+006 6.9258e-003 2.5625e+002 Te-132 8.2384e-003 3.0482e+008 2.5336e-001 9.3744e+003 Y-90 4.2954e-004 1.5893e+007 1.3210e-002 4.8877e+002 Y-91 9. 3369e-005 3.4547e+006 2.8715e-003 1.0624e+002 Y-91m 3.3836e-006 1.2519e+005 1.0406e-004 3.8502e+000 Y-93 1.0354e-007 3.8309e+003 3.1842e-006 1.1782e-001 Zr-95 8.3135e-005 3.0760e+006 2.5567e-003 9.4599e+001 Zr-97 1.6926e-006 6.2628e+004 5.2056e-005 1.9261e+000 Buildup The material reference is : Shield 2 Integration Parameters

)age  : 3

)OS File: SL2FIL05.MS5 Attachment 6 to PSL-ENG-SENS-04-037. Rev. 0 Page 47 of 121 tun Date: January 10, 2003 tun Time: 10:17:36 AM

)uration: 00:00:02 Z Direction 20 Y Direction 20 Results Enero Activity Fluence Rate Fluence Rate Exnosure Rate Exposure Rate MeV photons/sec, MgY/CM2/ggC MeV/CM2L-Agg mR/hr mR/hr No Buildup With Buildu2 No Build= With Buildup 0.015 1.096e+04 1.812e-257 1.674e-30 1.554e-258 1.436e-31 0.02 5.283e+06 3.404e-112 1.270e-27 1.179e-113 4.398e-29 0.03 5.574e+08 8.227e-36 2.962e-25 8.153e-38 2.936e-27 0.04 2.433e+07 6.141e-19 2.489e-18 2.716e-21 1.lOle-20 0.05 4.023e+07 3.666e-12 2.814e-11 9.765e-15 7.496e-14 0.06 3.200e+07 2.663e-09 3.415e-08 5.290e-12 6.783e-11 0.08 1.317e+08 3.561e-06 8.544e-05 5.636e-09 1.352e-07 0.1 4.341e+07 1.342e-05 4.726e-04 2.053e-08 7.231e-07 0.15 7.429e+07 3.315e-04 1.514e-02 5.458e-07 2.493e-05 0.2 3.261e+08 5.837e-03 2.546e-01 1.030e-05 4.494e-04 0.3 5.289e+08 5.316e-02 1.715e+00 1.008e-04 3.253e-03 0.4 3.624e+09 1.145e+00 2.708e+01 2.230e-03 5.276e-02 0.5 7.867e+08 5.838e-01 1.058e+01 1.146e-03 2.076e-02 0.6 2.720e+09 3.963e+00 5.727e+01 7.736e-03 1.118e-01 0.8 1.846e+09 7.499e+00 7.669e+01 1.426e-02 1.459e-01 1.0 4.172e+08 3.625e+00 2.859e+01 6.682e-03 5.270e-02 1.5 3.260e+08 1.031e+01 5.271e+01 1.734e-02 8.869e-02 2.0 1.306e+07 9.416e-01 3.726e+00 1.456e-03 5.762e-03 3.0 8.403e+06 1.692e+00 4.914e+00 2.295e-03 6.666e-03 TOTALS: 1.151e+10 2.982e+01 2.635e+02, 5.326e-02 4.887e-01

Attachment 6 to PSL-ENG-SENS-04-037, Rev. 0 MicroShield v5.05 (5.05-0000) Page 48 of 121 Grove Engineering

?age  : 1 File Ref:

)OS File: SL2FIL06.MS5 Date:

run Date: January 10, 2003 By:

run Time: 10:18:32 AM Checked:

)uration: 00:00:02 Case

Title:

s12filO6

Description:

St. Lucie Unit 2 LOCA (Filter to Control Room) - 720 hr Geometry: 4 - Rectangular Area - Vertical Source Dimensions Width 152.4 cm 5 ft 0.0 in Height 213.36 cm 7 ft 0.0 in Dose Points x x

1. 1 262.128 cm 60.96 cm 76.2 cm 8 ft 7.2 in 2 ft 2 ft 6.0 in Shields Shield Name Dimension Material Density Shield 1 79.248 cm Air 0.00122 Shield 2 30.48 cm Concrete 2.35 Air Gap Air 0.00122 Source Input Grouping Method : Standard indices Number of Groups : 25 Lower Energy Cutoff : 0.015 Photons < O.015 : Excluded Library : Grove Nuclide curies bec~aergla UCi/CM2_ ,Ba/C~M2 Am-241 1. 9315e-008 7.1466e+002 5.9401e-007 2.1979e-002 Ba-137m 1.7147e-002 6.3444e+008 5.2734e-001 1.9512e+004 Ba-140 1.7701e-003 6.5495e+007 5.4439e-002 2.0142e+003 Br-82 4.8208e-009 1.7837e+002 1.4826e-007 5.4856e-003 Ce-141 1.1516e-004 4.2610e+006 3.5417e-003 1.3104e+002 Ce-143 3.8435e-Oll 1.4221e+000 1.1820e-009 4.3735e-005 Ce-144 1.6979e-004 6.2823e+006 5.2218e-003 1.9321e+002 Cm-242 4.4519e-006 1.6472e+005 1.3691e-004 5.0658e+000 Cm-244 7.5494e-007 2.7933e+004 2.3217e-005 8.5904e-001 Cs-134 3.0599e-002 1.1322e+009 9.4105e-001 3.4819e+004 Cs-136 1.7320e-003 6.4082e+007 5.3265e-002 1.9708e+003 Cs-137 1.5469e-002 5.7234e+008 4.7572e-001 1.7602e+004 Eu-154 1.1476e-006 4.2460e+004 3.5293e-005 1.3058e+000 Eu-155 7.7355e-007 2.8621e+004 2.3790e-005 8.8022e-001 Eu-156 5.2084e-006 1.9271e+005 1.6018e-004 5.9266e+000 1-131 6.1360e-002 2.2703e+009 1.8871e+000 6.9821e+004 1-132 3.3731e-005 1.2480e+006 1.0373e-003 3.8382e+001 La-140 2.0389e-003 7.5441e+007 6.2706e-002 2.3201e+003 Mo-99 6.5686e-007 2..4304e+004 2.0201e-005 7.4744e-001 Nb-95 8.1147e-005 3.0025e+006 2.4956e-003 9.2337e+001 Nb-95m 4.6529e-007 1.7216e+004 1.4310e-005 5.2946e-001 Nd-147 5.2137e-006 1.9291e+005 1.6034e-004 5.9326e+000 Np-238 5.3709e-009 1.9872e+002 1.6518e-007 6.1115e-003 Np-239 5.1554e-007 1.9075e+004 1.5855e-005 5.8663e-001 Pm-147 8.6861e-006 3.2138e+005 2.6713e-004 9.8839e+000

'age 2

)OS File: SL2FIL06.MS5 Attachment 6 to PSL-ENG-SENS-04-037, Rev. 0 Page 49 of 121 tun Date: January 10, 2003 tun Time:. 10:18:32 AM

)uration: 00:00:02 muclide cur~ies becqruerels Ba/Cm2 Pm-148 3.9431e-007 1.4589e+004 1.2127e-005 4.4868e-001 Pm-148m 1.2358e-006 4.5725e+004 3.8006e-005 1.4062e+000 Pm-149 2.8057e-009 1.0381e+002 8.6288e-008 3.1926e-003 Pr-143 2.1634e-005 8.0046e+005 6.6533e-004 2.4617e+001 Pr-144 1.7392e-004 6.4349e+006 5.3487e-003 1.9790e+002 Pr-144m 3.2002e-006 1.1841e+005 9.8420e-005 3.6416e+000 Pu-238 1.0164e-006 3.7606e+004 3.1258e-005 1.1565e+000 Pu-239 6.9771e-008 2.5815e+003 2.1457e-006 7.9392e-002 Pu-240 1.1609e-007 4.2951e+003 3.5701e-006 1.3209e-001 Pu-241 2.9120e-005 1.0774e+006 8.9554e-004 3.3135e+001 Rb-86 9.2990e-005 3.4406e+006 2.8598e-003 1.0581e+002 Rh-103m 7.0268e-004 2.5999e+007 2.1610e-002 7.9958e+002 Rh-105 7.1737e-010 2.6543e+001 2.2062e-008 8.1630e-004 Rh-106 1.1463e-003 4.2412e+007 3.5252e-002 1.3043e+003 Ru-103 6.9891e-004 2.5860e+007 2.1494e-002 7.9529e+002 Ru-106 5.5736e-004 2.0622e+007 1.7141e-002 6.3422e+002 Sb-124 2.7443e-005 1.0154e+006 8.4398e-004 3.1227e+001 Sb-125 3.1653e-004 1.1711e+007 9.7345e-003 3.6018e+002 Sb-126 4.1813e-006 1.5471e+005 1.2859e-004 4.7578e+000 Sb-127 7.7943e-006 2.8839e+005 2.3971e-004 8.8692e+000 Sm-153 8.3575e-010 3.0923e+001 2.5703e-008 9.5100e-004 Sr-89 3.0939e-003 1.1447e+008 9.5149e-002 3.5205e+003 Sr-90 6.6353e-004 2.4551e+007 2.0406e-002 7.5503e+002 Tc-99m 6.3389e-007 2.3454e+004 1.9495e-005 7.2130e-001 Te-125m 7.1541e-005 2.6470e+006 2.2002e-003 8.1407e+001 Te-127 2.0456e-004 7.5688e+006 6.2911e-003 2.3277e+002 Te-127m 2.0140e-004 7.4518e+006 6.1938e-003 2.2917e+002 Te-129 2.5125e-004 9.2964e+006 7.7271e-003 2.8590e+002 Te-129m 3.8369e-004 1.4197e+007 1.1800e-002 4.3660e+002 Te-131m 1.0757e-010 3.9800e+000 3.3081e-009 1.2240e-004 Te-132 3.2641e-005 1.2077e+006 1.0038e-003 3.7142e+001 Y-90 6.6349e-004 2.4549e+007 2.0405e-002 7.5498e+002 Y-91 6.8646e-005 2.5399e+006 2.1111e-003 7.8112e+001 Zr-95 6.2727e-005 2.3209e+006 1.9291e-003 7.1377e+001 Buildup The material reference is : Shield 2 Integration Parameters Z Direction 20 Y Direction 20 Results Enerov Activity Fluence Rate Fluence Rate Exposure Rate Exoosure Rate MVY photons/sec MeVICM2/]sec MeV/CM2/sec mR/hr, mR/hr No Buildup With Buildup No Buildup With Buildup 0.015 8.403e+03 1.389e-257 1.283e-30 1.191e-258 1.lOle-31 0.02 2.228e+06 1.436e-112 5.355e-28 4.973e-114 1.855e-29 0.03 1.893e+08 2.794e-36 1.006e-25 2.769e-38 9.968e-28 0.04 1.519e+07 3.834e-19 1.554e-18 1.696e-21 6.872e-21 0.05 2.646e+05 2.412e-14 1.851e-13 6.424e-17 4.931e-16

'age  : 3 Attachment 6 to PSL-ENG-SENS-04-037. Rev. 0

)OS File: SL2FIL06.MS5 Page 50 of 121 tun Date: January 10, 2003 tun Time: 10:18:32 AM

)uration: 00:00:02 Enerov activity Fluence Rate Fluence Rate EXposure Rate Exposure Rate M~eV jhotons/sec MeV/CM2LLg mR/hr mR/hr With Buildu= No Buildu= with Buildup 0.06 8.028e+06 6.682e-10 8.567e-09 1.327e-12 1.702e-11 0.08 6.360e+07 1.719e-06 4.125e-05 2.721e-09 6.527e-08 0.1 6.503e+05 2.010e-07 7.079e-06 3.075e-10 1.083e-08 0.15 1.600e+07 7.139e-05 3.260e-03 1.176e-07 5.369e-06 0.2 1.739e+07 3.114e-04 1.358e-02 5.496e-07 2.397e-05 0.3 2.074e+08 2.084e-02 6.724e-01 3.954e-05 1.275e-03 0.4 1.852e+09 5.851e-01 1.384e+01 1.140e-03 2.697e-02 0.5 1.107e+08 8.213e-02 1.488e+00 1.612e-04 2.920e-03 0.6 2.129e+09 3.103e+00 4.484ei01 6.056e-03 8.752e-02 0.8 1.203e+09 4.887e+00 4.998e+01 9.296e-03 9.506e-02 1.0 1.054e+08 9.161e-01 7.225e+00 1.689e-03 1.332e-02 1.5 1.076e+08 3.402e+00 1.740e+01 5.723e-03 2.927e-02 2.0 8.392e+05 6.052e-02 2.395e-01 9.359e-05 3.704e-04 3.0 2.686e+06 5.408e-01 1.571e+00 7.337e-04 2.131e-03 TOTALS: 6.032e+09 1.360e+01 1.373e+02 2.493e-02 2.589e-01

MicroShield v5.0 5 (5.05-00 00)

Micr~hild 5.05(5.5-000)Page Attachment 6 to PSL-ENG-SENS-04-037, Rev.

51 of 1210 Grove Engineering Page  : 1 File Ref:

DOS File: SL2ENVO1.MS5 Date:

Run Date: January 8, 2003 By:

Run Time: 3:17:29 PM Checked:

Duration: 00:01:39 Case

Title:

sl2env0j

Description:

St. Lucie Unit 2 LOCA (External Cloud to CR) - 30 sec Geometry: 13 - Rectangular Volume Source Dimensions Length 1.Oe+5 cm 3281 ft 0.0 in Width 3.0e+3 cm 98 ft 8.0 in Height 3.0e+3 cm 98 ft 8.0 in Dose Points 11.OOe+05 cm 1.50e+03 cm 1.50e+03 cm 3293 ft49 ft 4.0 in49 ft 4.0 in Shields Shield Name Dimension Material Density Source 3.19e+07 ft3 Air 0.00122 Shield 1 2.0 ftConcrete2.35 Air Gap Air 0.00122 source Input Grouping Method : Standard Indices Number of Groups : 25 Lower Energy Cutoff : 0.015 Photons < 0.015 : Excluded Library : Grove Ni=11-de curies becouerels uCi/cm3 Ba/cm3 Co-58 3.3342e-003 1.2337e+008 3.6861e-009 1.3639e-004 Co-60 4.2424e-004 1.5697e+007 4.6902e-010 1.7354e-005 Cs-134 2.4248e-002 8.9718e+008 2.6807e-008 9.9187e-004 Cs-136 1.6671e-002 6.1683e+008 1.8431e-008 6.8193e-004 Cs-137 6.6672e-002 2.4669e+009 7.3709e-008 2.7272e-003 1-131 9.6376e-002 3.5659e+009 1.0655e-007 3.9423e-003 1-133 1.1979e-001 4.4322e+009 1.3243e-007 4.9001e-003 Kr-85 3.4862e-001 1.2899e+010 3.8542e-007 1.4260e-002 Kr-88 4.0852e-001 1.5115e+010 4.5164e-007 1.6711e-002 Mo-99 6.9701e-002 2.5789e+009 7.7058e-008 2.8511e-003 Ru-103 9.6978e-004 3.5882e+007 1.0721e-009 3.9669e-005 Ru-106 2.5765e-004 9.5331e+006 2.8485e-010 1.0539e-005 Sr-89 8.6382e-004 3.1961e+007 9.5500e-010 3.5335e-005 Sr-90 2.8789e-005 1.0652e+006 3.1828e-011 1.1776e-006 Xe-131m 6.6663e-001 2.4665e+010 7.3699e-007 2.7269e-002 Xe-133 4.3958e+001 1.6264e+012 4.8598e-005 1.7981e+000 Xe-135 9.6960e-001 3.5875e+010 1.0719e-006 3.9662e-002 Y-91 9.2437e-004 3.4202e+007 1.0219e-009 3.7812e-005 Zr-95 1.1667e-003 4.3168e+007 1.2898e-009 4.7724e-005 Buildup The material reference is  : Shield 1 Integration Parameters X Direction 20

Page 2 Attachment 6 to PSL-ENG-SENS-04-037, Rev. 0 DOS File: SL2ENVO1.MS5 Page 52 of 121 Run Date: January 8, 2003 Run Time: 3:17:29 PM Duration: 00:01:39 Y Direction 40 Z Direction 40 Resulto Enerv Activity Fluence Rate Fluence Rate Exposure Rate Exposure Rate HMQy photons/sec MeV/cm 2 /sec MeV/CM2/sec mR/hr mR/hr No Buildup With Buildup No Build= With Buildup

• 0.02 8.164e+07 6.536e-225 1.764e-29 2.264e-226 6.109e-31 0.03 7.960e+11 1.577e-72 3.803e-25 1.563e-74 3.769e-27 0.04 4.455e+07 1.600e-40 5.644e-29 7.074e-43 2.496e-31 0.05 1.340e+05 4.659e-30 4.768e-29 1.241e-32 1.270e-31 0.06 7.688e+07 1.820e-21 5.005e-20 3.615e-24 9.942e-23 0.08 5.970e+11 1.128e-12 6.286e-11 1.785e-15 9.948e-14 0.1 3.233e+07 6.548e-15 6.733e-13 1.002e-17 1.030e-15 0.15 1.232e+09 3.672e-11 6.388e-09 6.047e-14 1.052e-11 0.2 3.763e+10 1.419e-08 2.593e-06 2.504e-11 4.576e-09 0.3 6.778e+08 5.768e-09 7.555e-07 1.094e-11 1.433e-09 0.4 3.619e+09 2.407e-07 2.128e-05 4.690e-10 4.146e-08 0.5 4.200e+09 1.288e-06 8.062e-05 2.528e-09 1.582e-07 0.6 2.567e+09 2.622e-06 1.222e-04 5.117e-09 2.386e-07 0.8 4.675e+09 2.951e-05 8.646e-04 5.614e-08 1.645e-06 1.0 1.950e+09 4.724e-05 9.764e-04 8.707e-08 1.800e-06 1.5 2.792e+09 6.503e-04 7.498e-03 1.094e-06 1.261e-05 2.0 9.190e+09 8.868e-03 7.188e-02 1.371e-05 1.112e-04 3.0 1.166e+08 6.329e-04 3.343e-03 8.586e-07 4.535e-06 TOTALS: 1.462e+12 1. 023e-02 8.479e-02 1.582e-05 1.322e-04

Attachment 6 to PSL-ENG-SENS-04-037, Rev. 0 MicroShield v5.05 (5.05-0000) Page 53 of 121 Grove Engineering Page  : 1 File Ref:

DOS File: SL2ENV02.MS5 Date:

Run Date: January 8, 2003 By:

Run Time: 3:20:16 PM Checked:

Duration: 00:01:36 Case

Title:

sl2envO2

Description:

St. Lucie Unit 2 LOCA (External Cloud to CR) - 30 min Geometry: 13 - Rectangular Volume Source Dimensions Length 1.Oe+5 cm 3281 ft 0.0 in Width 3.Oe+3 cm 98 ft 8.0 in Height 3.Oe+3 cm 98 ft 8.0 in Dose Points x Ix

1. 11.OOe+05 cm 1.50e+03 cm 1.50e+03 cm 3293 ft49 ft 4.0 in49 ft 4.0 in Shields Shield Name Dimension Mat~erialpensity Source 3.19e+07 ft3 Air 0.00122 Shield 1 2.0 ftConcrete2.35 Air Gap Air 0.00122 Source Input Grouping Method : Standard Ilndices Number of Groups : 25 Lower Energy Cutoff : 0.015 Photons < 0.015 : Excluded Library : Grove Nuclide curies becouerels uC4i/cm3 Ba/M Ba-137m 2.7792e+000 1.0283e+011 3.0725e-006 1.1368e-001 Br-82 1.2773e-001 4.7259e+009 1.4121e-007 5.2247e-003 Br-83 1.5229e+000 5.6346e+010 1.6836e-006 6.2293e-002 Br-84 1.5508e+000 5.7379e+010 1.7145e-006 6.3435e-002 Cs-134 5.3356e+000 1.9742e+011 5.8987e-006 2.1825e-001 Cs-134m 1.0600e+000 3.9220e+010 1.1719e-006 4.3360e-002 Cs-136 1.4353e+000 5.3105e+010 1.5868e-006 5.8711e-002 Cs-137 2.6289e+000 9.7270e+010 2.9064e-006 1.0754e-001 Cs-138 3.8862e+001 1.4379e+012 4.2964e-005 1.5897e+000 1-130 9.2195e-001 3.4112e+010 1.0193e-006 3.7713e-002 1-131 1.5741e+001 5.8242e+011 1.7403e-005 6.4389e-001 I-132 2.0339e+001 7.5255e+011 2.2486e-005 8.3199e-001 I-133 3.0087e+001 1.1132e+012 3.3263e-005 1.2307e+000 I-134 2.4493e+001 9.0625e+011 2.7079e-005 1.0019e+000 I-135 2.7141e+001 1.0042e+012 3.0005e-005 1.1102e+000 Kr-83m 2.2260e+001 8.2360e+011 2.4609e-005 9.1054e-001 Kr-85 2.9963e+000 1.1086e+011 3.3125e-006 1.2256e-001 Kr-85m 4.2892e+001 1.5870e+012 4.7419e-005 1.7545e+000 Kr-87 6.6696e+001 2.4677e+012 7.3736e-005 2.7282e+000 Kr-88 1.0918e+002 4.0395e+012 1.2070e-004 4.4658e+000 Rb-86 4.8037e-002 1.7774e+009 5.3107e-008 1.9650e-003 Rb-88 4.3102e+001 1.5948e+012 4.7651e-005 1.7631e+000 Rb-89 3.1469e+000 1.1644e+011 3.4791e-006 1.2873e-001 Sr-89 1.0379e-003 3.8401e+007 1.1474e-009 4.2454e-005

Page 2 Attachment 6 to PSL-ENG-SENS-04-037, Rev. 0 DOS File: SL2ENVO2.MS5 Page 54 of 121 Run Date: January 8, 2003 Run Time: 3:20:16 PM Duration: 00:01:36 Mclide ,curies becauerels Xe-131m 2.2322e+000 8.2591e+010 2.4678e-006 9.1308e-002 Xe-133 3.8808e+002 1.4359e+013 4.2904e-004 1.5875e+001 Xe-133m 1.2387e+001 4.5831e+011 1.3694e-005 5.0668e-001 Xe-135 1.2270e+002 4.5398e+012 1.3565e-004 5.0190e+000 Xe-135m 6.1754e+001 2.2849e+012 6.8272e-005 2.5261e+000 Xe-138 7.0088e+001 2.5933e+012 7.7486e-005 2.8670e+000 Buildup The material reference is : Shield 1 Integration Parameters X Direction 20 Y Direction 40 Z Direction 40 Results Fluence Rate Fluence Rate Exoosure Rate Exposure Rate k~y photong/ga MeV/Cm2/sec MeV/cmn2/se mg/hr znR/hr No BuildU2 With Builu No BuidU With Buildup 0.03 8. 001e+12 1.585e-71 3.822e-24 1.571e-73 3.788e-26 0.04 6.268e+09 2.250e-38 7.940e-27 9. 953e-41 3.512e-29 0.06 6.619e+09 1.567e-19 4.309e-18 3.112e-22 8.559e-21 0.08 5.288e+12 9.994e-12 5.568e-10 1.582e-14 8.81le-13 0.1 1.008e+10 I 2.042e-12 2.100e-10 3.124e-15 3.212e-13 0.15 1.572e+12 4.686e-08 8.153e-06 7.717e-11 1.343e-08 0.2 5.382e+12 2.029e-06 3.708e-04 3.581e-09 6.545e-07 0.3 1.207e+12 1.027e-05 1.346e-03 1.949e-08 2.553e-06 0.4 2.883e+12 1.918e-04 1.695e-02 3.737e-07 3.304e-05 0.5 3.905e+12 1.198e-03 7.495e-02 2.351e-06 1.471e-04 0.6 1.935e+12 1.977e-03 9.219e-02 3.859e-06 1.799e-04 0.8 3.907e+12 2.466e-02 7.225e-01 4.691e-05 1.374e-03 1.0 2.206e+12 5.342e-02 1.104e+00 9.846e-05 2.035e-03 1.5 2.839e+12 6.613e-01 7.624e+00 1.113e-03 1.283e-02 2.0 4.434e+12 4.279e+00 3.468e+01 6.617e-03 5.363e-02 3.0 5.613e+11 3.046e+00 1.609e+01 4.133e-03 2.183e-02 4.0 5.444e+09 8.334e-02 3.390e-01 1.031e-04 4.193e-04 5.0 2.287e+09 7.060e-02 2.387e-01 8.094e-05 2.737e-04 TOTALS: 4.415e+13 8.222e+00 6.099e+01 1.220e-02 9.276e-02

icoShield 5.0 5 ( 5.0 5-0 000) Attachment 6 to PSL-ENG-SENS-04-037, Rev. 0 Grove Engineering Page  : 1 File Ref:

DOS File: SL2ENVO3.MS5 Date:

Run Date: January 8, 2003 By:

Run Time: 3:22:42 PM Checked:

Duration: 00:01:55 Case

Title:

sl2envO3

Description:

St. Lucie Unit 2 LOCA (Extornal Cloud to CR) - 2 h Geometry: .13 - Rectangular Volume Source Dimensions Length 1.Oe+5 cm 3281 ft 0.0 in Width 3.Oe+3 cm 98 ft 8.0 in Height 3.0e+3 cm 98 ft 8.0 in Dose Points X Y ff

1. 11.OOe+05 cm 1.50e+03 cm 1.50e+03 cm 3293 ft49 ft 4.0 in49 ft 4.0 in Shields Shield Name Dimensio Material Density Source 3.19e+07 ft3 Air 0.00122 Shield 1 2.0 ftConcrete2.35 Air Gap Air 0.00122 Source Input Grouping Method : Standard Indices Number of Groups : 25 Lower Energy Cutoff : 0.015 Photons < 0.015 : Excluded Library : Grove Nuc-ide curies becoruerelsa uCi /cm3 Ba/cm3 Am-241 2.8884e-005 1.0687e+006 3.1933e-011 1.1815e-006 Am-242 1.2808e-002 4.7390e+008 1.4160e-008 5.2392e-004 Ba-137m 2.9785e+001 1.1020e+012 3.2929e-005 1.2184e+000 Ba-139 6.4135e+000 2.3730e+011 7.0904e-006 2.6235e-001 Ba-140 1.6802e+001 6.2168e+011 1.8576e-005 6.8730e-001 Ba-141 1.6740e-001 6.1939e+009 1.8507e-007 6;.8476e-003 Br-82 1.6600e+000 6.1421e+010 1.8353e-006 6.7904e-002 Br-83 1.3224e+001 4.8927e+011 1.4619e-005 5.4091e-001 Br-84 2.9500e+000 1.0915e+011 3.2614e-006 1.2067e-001 Ce-141 4.0569e-001 1.5011e+010 4.4851e-007 1.6595e-002 Ce-143 3.5425e-001 1.3107e+010 3.9164e-007 1.4491e-002 Ce-144 3.4002e-001 1.2581e+010 3.7591e-007 1.3909e-002 Cm-242 9.3891e-003 3.4740e+008 1.0380e-008 3.8406e-004 Cm-244 1.4127e-003 5.2269e+007 1.5618e-009 5.7786e-005 Co-58 3.3320e-003 1.2328e+008 3.6837e-009 1.3630e-004 Co-60 4.2429e-004 1.5699e+007 4.6907e-010 1.7356e-005 Cs-134 5.4531e+001 2.0176e+012 6.0287e-005 2.2306e+000 Cs-134m 7.5815e+000 2.8052e+011 8.3817e-006 3.1012e-001 Cs-136 1.4632e+001 5.4138e+011 1.6176e-005 5.9852e-001 Cs-137 2.6924e+001 9.9619e+011 2.9766e-005 1.1013e+000 Cs-138 1.4206e+002 5.2562e+012 1.5705e-004 5.8110e+000 Eu-154 2.1546e-003 7.9720e+007 2.3820e-009 8.8135e-005 Eu-155 1.4596e-003 5.4004e+007 1.6136e-009 5.9705e-005 Eu-156 3.8050e-002 1.4079e+009 4.2066e-008 1.5564e-003

Page 2 Attachment 6 to PSL-ENG-SENS-04-037, Rev. 0 DOS File: SL2ENVO3.MS5 Page 56 of 121 Run Date: January 8, 2003 Run Time: 3:22:42 PM Duration: 00:01:55 Nuclide beckuerels UC+/-/CM3 Ba/cm3 I-130 1.1349e+001 4.1992e+011 1.2547e-005 4.6424e-001 1-131 2.0993e+002 7.7672e+012 2.3208e-004 8.5871e+000 I-132 2.2353e+002 8.2705e+012 2.4712e-004 9.1435e+000 I-133 3.8663e+002 1.4305e+013 4.2744e-004 1.5815e+001 I-134 1.3887e+002 5.1384e+012 1.5353e-004 5.6807e+000 I-135 3.1069e+002 1.1496e+013 3.4349e-004 1.2709e+001 Kr-83m 1.1279e+003 4.1733e+013 1.2470e-003 4.6138e+001 Kr-85 2.1072e+002 7.7966e+012 2.3296e-004 8.6195e+000 Kr-85m 2.3909e+003 8.8462e+013 2.6432e-003 9.7800e+001 Kr-87 2.0768e+003 7.6842e+013 2.2960e-003 8.4952e+001 Kr-88 5.3264e+003 1.9708e+014 5.8886e-003 2.1788e+002 La-140 4.3163e-001 1.5970e+010 4.7719e-007 1.7656e-002 La-141 2.2687e-001 8.3942e+009 2.5082e-007 9.2802e-003 La-142 6.2558e-002 2.3146e+009 6.9161e-008 2.5590e-003 Mo-99 2.3755e+000 8.7894e+010 2.6262e-006 9.7171e-002 Nb-95 1.6368e-001 6.0560e+009 1.8095e-007 6.6952e-003 Nb-95m 1.1542e-003 4.2705e+007 1.2760e-009 4.7213e-005 Nb-97 5.7181e-002. 2.1157e+009 6.3216e-008 2.3390e-003 Nd-147 6.4179e-002 2.3746e+009 7.0953e-008 2.6252e-003 Np-238 1.7621e-001 6.5197e+009 1.9481e-007 7.2079e-003 Np-239 6.4145e+000 2.3734e+011 7.0916e-006 2.6239e-001 Pd-109 5.7035e-001 2.1103e+010 6.3056e-007 2.3331e-002 Pm-147 1.5927e-002 5.8931e+008 1.7608e-008 6.5151e-004 Pm-148 2.9467e-002 1.0903e+009 3.2577e-008 1.2053e-003 Pm-148m 3.8088e-003 1.4093e+008 4.2108e-009 1.5580e-004 Pm-149 6.1769e-002 2.2855e+009 6.8289e-008 2.5267e-003 Pm-151 2.1542e-002 7.9704e+008 2.3815e-008 8.8116e-004 Pr-143 1.4747e-001 5.4564e+009 1.6304e-007 6.0324e-003 Pr-144 3.1289e-001 1.1577e+010 3.4591e-007 1.2799e-002 Pr-144m 6.2752e-003 2.3218e+008 6.9375e-009 2.5669e-004 Pu-238 1.8366e-003 6.7955e+007 2.0305e-009 7.5128e-005 Pu-239 1.2844e-004 4.7521e+006 1.4199e-010 5.2537e-006 Pu-240 2.1653e-004 8.0115e+006 2.3938e-010 8.8572e-006 Pu-241 5.4536e-002 2.0178e+009 6.0292e-008 2.2308e-003 Pu-243 1.5323e-001 5.6694e+009 1.6940e-007 6.2678e-003 Rb-86 4.8962e-001 1.8116e+010 5.4130e-007 2; 0028e-002 Rb-88 3.6802e+003 1.3617e+014 4.0686e-003 1.5054e+002 Rb-89 5.4283e-001 2.0085e+010 6.0013e-007 2.2205e-002 Rh-103m 2.1695e+000 8.0272e+010 2.3985e-006 8.8745e-002 Rh-105 1.5560e+000 5.7572e+010 1.7202e-006 6.3649e-002 Rh-106 2.2622e+000 8.3700e+010 2.5009e-006 9.2535e-002 Ru-103 2.2113e+000 8.1819e+010 2.4447e-006 9.0455e-002 Ru-105 1.2395e+000 .4.5862e+010 1.3703e-006 5.0703e-002 Ru-106 1.1002e+000 4.0707e+010 1.2163e-006 4.5004e-002 Sb-124 7.2276e-002 2.6742e+009 7.9904e-008 2.9565e-003 Sb-125 6.0268e-001 2.2299e+010 6.6629e-007 2.4653e-002 Sb-126 4.1529e-002 1.5366e+009 4.5913e-008 1.6988e-003 Sb-127 3.1749e+000 1.1747e+011 3.5100e-006 1.2987e-001 Sb-129 6.5164e+000 2.4111e+011 7.2042e-006 2.6655e-001 Sm-153 6.6238e-002 2.4508e+009 7.3229e-008 2.7095e-003 Sr-89 8.6905e+000 3.2155e+011 9.6077e-006 3.5549e-001 Sr-90 1.2414e+000 4.5931e+010 1.3724e-006 5.0779e-002 Sr-91 9.3977e+000 3.4771e+011 1.0390e-005 3.8442e-001

Page 3 Attachment 6 to PSL-ENG-SENS-04-037, Rev. 0 DOS File: SL2ENVO3.MS5 Page 57 of 121 Run Date: January 8, 2003 Run Time: 3:22:42 PM Duration: 00:01:55 Nuclide curies becouerels aci/cm3 Ba/CM3 Sr-92 7.1444e+000 2.6434e+011 7.8985e-006 2.9225e-001 Tc-99m 6.1975e-003 2.2931e+008 6.8516e-009 2.5351e-004 Tc-101 2.0713e+000 7.6638e+010 2.2899e-006 8.4727e-002 Te-125m 1.3239e-001 4.8985e+009 1.4636e-007 5.4155e-003 Te-127 3.1823e+000 1.1775e+011 3.5182e-006 1.3017e-001 Te-127m 4.3408e-001 1.6061e+010 4.7989e-007 1.7756e-002 Te-129 7.3256e+000 2.7105e+011 8.0988e-006 2.9966e-001 Te-129m 1.3189e+000 4.8798e+010 1.4581e-006 5.3948e-002 Te-131 1.6272e+000 6.0208e+010 1.7990e-006 6.6562e-002 Te-131m 3.6861e+000 1.3639e+011 4.0752e-006 1.5078e-001 Te-132 3.5361e+001 1.3084e+012 3.9094e-005 1.4465e+000 Te-133 7.1519e-001 2.6462e+010 7.9068e-007 2.9255e-002 Te-133m 3.9362e+000 1.4564e+011 4.3517e-006 1.6101e-001 Te-134 5.4473e+000 2.0155e+011 6.0222e-006 2.2282e-001 Xe-13lm 1.5711e+002 5.8130e+012 1.7369e-004 6.4265e+000 Xe-133 2.7185e+004 1.0058e+015 3.0055e-002 1.1120e+003 Xe-133m 8.6054e+002 3.1840e+013 9.5138e-004 3.5201e+001 Xe-135 9.0367e+003 3.3436e+014 9.9905e-003 3.6965e+002 Xe-135m 1.0863e+003 4.0195e+013 1.2010e-003 4.4437e+001 Xe-138 6.1757e+001 2.2850e+012 6.8276e-005 2.5262e+000 Y-90 2.4790e-002 9.1724e+008 2.7407e-008 1.0141e-003 Y-91 1.1733e-001 4.3412e+009 1.2971e-007 4.7994e-003 Y-91m 2.8876e+000 1.0684e+011 3.1924e-006 1.1812e-001 Y-92 1.3951e+000 5.1620e+010 1.5424e-006 5.7068e-002 Y-93 1.2233e-001 4.5264e+009 1.3525e-007 5.0041e-003 Zr-95 1.6283e-001 6.0249e+009 1.8002e-007 6.6608e-003 Zr-97 1.4918e-001 5.5196e+009 1.6492e-007 6.1022e-003 Buildup The material reference is : Shield I Integration Parameters X Direction 20 y Direction 40 z Direction 40 Results Enerav Activity Fluence Rate Fluence Rate ExDosure Rate Exposure Rate MeVf ]2hotons/sec MeV/CM2 L-ec MeV/CM2/sec mRlhr mR/hr No Buildup With Buildup Lo Buildup With Buildup 0.015 5.118e+08 0.OOOe+00 7.027e-29 0.OOOe+00 6.027e-30 0.02 1.129e+10 9.035e-223 2.438e-27 3.130e-224 8.445e-29 0.03 5.322e+14 1.055e-69 2.543e-22 1.045e-71 2.520e-24 0.04 6.724e+10 2.414e-37 8.518e-26 1.068e-39 3.767e-28 0.05 1.725e+11 5.998e-24 6.138e-23 1.598e-26 1.635e-25 0.06 7.357e+10 1.742e-18 4.790e-17 3.459e-21 9.514e-20 0.08 3.694e+14 6.982e-10 3.890e-08 1.105e-12 6.156e-11 0.1 6.468e+11 1.310e-10 1.347e-08 2.004e-13 2.06le-11 0.15 7.481e+13 2.230e-06 3.879e-04 3.672e-09 6.387e-07 0.2 3.583e+14 1.351e-04 2.469e-02 2.384e-07 4.358e-05 0.3 1.552e+13 1.321e-04 1.730e-02 2.506e-07 3.282e-05

Page 4 Attachment 6 to PSL-ENG-SENS-04-037. Rev. 0 DOS File: SL2ENVO3.MS5 Page 58 of 121 Run Date: January 8, 2003 Run Time: 3:22:42 PM Duration: 00:01:55 Eneroy Activity Fluence Rate Fluence Rate Exoosure Rate Exposure Rate MeV photons/sec MeV/cm 2 L/sec MeV/CM2/sec mR/hr mR/hr No Buildup With Buildup No Buildu= With Buildup 0.4 5.499e+13 3.657e-03 3.233e-01 7.126e-06 6.300e-04 0.5 5.338e+13 1.637e-02 1.025e+00 3.214e-05 2.011e-03 0.6 2.984e+13 3.048e-02 1.421e+00 5.949e-05 2.774e-03 0.8 7.681e+13 4.849e-01 1.420e+01 9.223e-04 2.702e-02 1.0 2.907e+13 7.039e-01 1.455e+01 1.298e-03 2.682e-02 1.5 5.262e+13 1.225e+01 1.413e+02 2.062e-02 2.377e-01 2.0 1.563e+14 1.508e+02 1.222e+03 2.332e-01 1.890e+00 3.0 1.658e+13 8.998e+01 4.753e+02 1.221e-01 6.448e-01 4.0 8.103e+09 1.241e-01 5.046e-01 1.535e-04 6.242e-04 5.0 1.952e+11 6.028e+00 2.038e+01 6.911e-03 2.337e-02 TOTALS: 1.821e+15 2.604e+02 1.891e+03 3.853e-01 2.856e+00

Attachment 6to PSL-ENG-SENS-04"037, Rev. 0 MicroShield v5.05 (5.05-0000) Page 59ofl121 Grove Engineering Page  : 1 File Ref:

DOS File: SL2ENVO4.MS5 Date:

Run Date: January 8, 2003 By:

Run Time: 3:26:01 PM Checked:

Duration: 00:01:55 Case

Title:

sl2envO4

Description:

St. Lucie'Unit 2 LOCA (External Cloud to CR) - 8 h Geometry: 13 - Rectangular Volume Source Dimensions Length 1.Oe+5 cm 3281 ft 0.0 in Width 3.Oe+3 cm 98 ft 8.0 in Height 3.Oe+3 cm 98 ft 8.0 in Dose Points X

yz i# 11.OOe+05 cm 1.50e+03 cm 1.50e+03 cm 3293 ft49 ft 4.0 in49 ft 4.0 in Shields Shield Name Dimension Haterialpensity Source 3.19e+07 ft3 Air 0.00122 Shield 1 2.0 ftConcrete2.35 Air Gap Air 0.00122 Source Input Grouping Method : Standard Indices Number of Groups : 25 Lower Energy Cutoff : 0.015 Photons < 0.015 : Excluded Library : Grove Nuclide curies becouerels uCi /cm3 Dai/CM3 Am-241 4.1716e-005 1.5435e+006 4.6119e-011 1.7064e-006 Am-242 1.4239e-002 5.2684e+008 1.5742e-008 5.8245e-004 Ba-137m 4.0668e+001 1.5047e+012 4.4961e-005 1.6636e+000 Ba-139 4.5230e-001 1.6735e+010 5.0004e-007 1.8501e-002 Ba-140 2.3888e+001 8.8384e+011 2.6409e-005 9.7713e-001 Br-82 2.1374e+000 7.9082e+010 2.3630e-006 8.7430e-002 Br-83 3.3616e+000 1.2438e+011 3.7164e-006 1.3751e-001 Br-84 1.6705e-003 6.1809e+007 1.8468e-009 6.8333e-005 Ce-141 5.8166e-001 2.1521e+010 6.4305e-007 2.3793e-002 Ce-143 4.5015e-001 1.6656e+010 4.9766e-007 1.8414e-002 Ce-144 4.8977e-001 1.8121e+010 5.4146e-007 2.0034e-002 Cm-242 1.3532e-002 5.0067e+008 1.4960e-008 5.5351e-004 Cm-244 2.0360e-003 7.5333e+007 2.2509e-009 8.3284e-005 Co-60 4.2426e-004 1.5698e+007 4.6904e-010 1.7355e-005 Cs-134 7.4464e+001 2.7552e+012 8.2324e-005 3 .0460e+000 Cs-134m 2.4682e+000 9.1324e+010 2.7287e-006 1.0096e-001 Cs-136 1.9701e+001 7.2895e+011 2.1781e-005 8.0589e-001 Cs-137 3.6754e+001 1.3599e+012 4.0633e-005 1.5034e+000 Cs-138 1.0899e-001 4.0325e+009 1.2049e-007 4.4582e-003 Eu-154 3.1051e-003 1.1489e+008 3.4329e-009 1.2702e-004 Eu-155 2.1035e-003 7.7828e+007 2.3255e-009 8.6042e-005 Eu-156 5.4219e-002 2.0061e+009 5.9941e-008 2.2178e-003 1-130 1.1742e+001 4.3445e+011 1.2981e-005 4.8031e-001 1-131 2.9761e+002 1.1012e+013 3.2902e-004 1.2174e+001

Page 2 Attachment 6 to PSL-ENG-SENS-04-037, Rev. 0

)OS File: SL2ENV04.MS5 APage 60 of 121 Run Date: January 8, 2003 Run Time: 3:26:01 PM

}uration: 00:01:55 Nuclide curies becq-uerels Uci /cm I-132 5.7896e+001 2.1421e+012 6.4007e-OO5 2.3682e+000 I-133 4.5886e+002 1.6978e+013 5.0730e-004 1.8770e+001 I-134 1.8507e+000 6.8476e+010 2.0460e-006 7.5704e-002 I-135 2.3984e+002 8.8743e+012 2.6516e-004 9.8109e+000 Kr-83m 1.3592e+003 5.0290e+013 1.5027e-003 5.5598e+001 Kr-85 1.6510e+003 6.1086e+013 1.8252e-003 6.7534e+001 Kr-85m 7.4134e+003 2.7430e+014 8.1959e-003 3.0325e+002 Kr-87 6.1903e+002 2.2904e+013 6.8436e-004 2.5321e+001 Kr-88 9.6624e+003 3.5751e+014 1.0682e-002 3.9524e+002 La-140 2.8833e+000 1.0668e+011 3.1877e-006 1.1794e-001 La-141 1.1167e-001 4.1317e+009 1.2345e-007 4.5678e-003 La-142 6.0736e-003 2.2472e+008 6.7146e-009 2.4844e-004 Mo-99 3.1222e+000 1.1552e+011 3.4518e-006 1.2771e-001 Nb-95 2.3588e-001 8.7276e+009 2.6078e-007 9.6488e-003 Nb-95m 1.6620e-003 6.1492e+007 1.8374e-009 6.7983e-005 Nb-97 1.1847e-002 4.3834e+008 1.3097e-008 4.8460e-004 Nd-147 9.1049e-002 3.33688e+009 1.0066e-007 3.7244e-003 Np-238 2.3400e-001 8.6581e+009 2.5870e-007 9.5719e-003 Np-239 8.5891e+000 3.1780e+011 9.4957e-006 3.5134e-001 Pd-109 6.0308e-001 2.2314e+010 6.6673e-007 2.4669e-002 Pm-147 2.2968e-002 8.4981e+008 2.5392e-008 9.3951e-004 Pm-148 4.1129e-002 1.5218e+009 4.5470e-008 1.6824e-003 Pm-148m 5.4665e-003 2.0226e+008 6.0435e-009 2.2361e-004 Pm-149 8.2317e-002 3.0457e+009 9.1006e-008 3.3672e-003 Pm-151 2.6818e-002 9.9225e+008 2.9648e-008 1.0970e-003 Pr-143 2.1430e-001 7.9291e+009 2.3692e-007 8.7661e-003 Pr-144 5.0166e-001 1.8561e+010 5.5461e-007 2.0521e-002 Pr-144m 9.2312e-003 3.4155e+008 1.0206e-008 3.7761e-004 Pu-238 2.6485e-003 9.7994e+007 2.9280e-009 1.0834e-004 Pu-239 1.8528e-004 6.8553e+006 2.0483e-010 7.5789e-006 Pu-240 3.1208e-004 1.1547e+007 3.4502e-010 1.2766e-005 Pu-241 7.8597e-002 2.9081e+009 8.6893e-008 3.2150e-003 Pu-243 9.5418e-002 3.5305e+009 1.0549e-007 3.9031e-003 Rb-86 6.6264e-001 2.4518e+010 7.3258e-007 2.7105e-002 Rb-88 1.0377e+004 3.8394e+014 1.1472e-002 4.2447e+002 Rh-103m 3.1879e+000 1.1795e+011 3.5244e-006 1.3040e-001 Rh-105 2.1213e+000 7.8489e+010 2.3452e-006 8.6774e-002 Rh-106 3.2588e+000 1.2057e+011 3.6027e-006 1.3330e-001 Ru-103 3.1717e+000 1.1735e+011 3.5065e-006 1.2974e-001 Ru-105 7.0016e-001 2.5906e+010 7.7406e-007 2.8640e-002 Ru-106 1.5846e+000 5.8628e+010 1.7518e-006 6.4817e-002 Sb-124 1.0387e-001 3.8432e+009 1.1483e-007 4.2488e-003 Sb-125 8.6846e-001 3.2133e+010 9.6013e-007 3.5525e-002 Sb-126 5.9025e-002 2.1839e+009 6.5255e-008 2.4144e-003 Sb-127 4.3744e+000 1.6185e+011 4.8362e-006 1.7894e-001 Sb-129 3.5863e+000 1.3269e+011 3.9648e-006 1.4670e-001 Sm-153 8.7332e-002 3.2313e+009 9.6550e-008 3.5723e-003 Sr-89 1.2480e+001 4.6175e+011 1.3797e-005 5.1049e-001 Sr-90 1.7891e+000 6.6198e+010 1.9780e-006 7.3185e-002 Sr-91 8.7421e+000 3.2346e+011 9.6648e-006 3.5760e-001 Sr-92 2.2194e+000 8.2117e+010 2.4536e-006 9.0785e-002 Tc-99m 2.8919e+000 1.0700e+011 3.1972e-006 1.1830e-001 Te-125m 1.9083e-001 7.0606e+009 2.1097e-007 7.8058e-003

Page 3

3. Attachment 6 to PSL-ENG-SENS-04-037, Rev. 0 DOS File: SL2ENVO4 .MS5 Page 61 of 121 Run Date: January 8, 2003 Run Time: 3:26:01 PM Duration: 00:01:55 uc-ie curies becoruerels uCi/cm3 Ba/CM3 Te-127 4.4818e+000 1.6583e+011 4.9548e-006 1.8333e-001 Te-127m 6.2587e-001 2.3157e+010 6.9193e-007 2.5602e-002 Te-129 5.0450e+000 1.8667e+011 5.5775e-006 2.0637e-001 Te-129m 1.8980e+000 7.0224e+010 2.0983e-006 7.7636e-002 Te-131 1.0587e+000 3.9170e+010 1.1704e-006 4.3305e-002 Te-131m 4.6249e+000 1.7112e+011 5.1130e-006 1.8918e-001 Te-132 4.8318e+001 1.7877e+012 5.3417e-005 1.9764e+000 Te-133 1.0880e-002 4.0255e+008 1.2028e-008 4.4504e-004 Te-133m 6.2757e-002 2.3220e+009 6.9381e-008 2.5671e-003 Te-134 2.0060e-002 7.4221e+008 2.2177e-008 8.2055e-004 Xe-131m 1.2144e+003 4.4934e+013 1.3426e-003 4.9677e+001 Xe-133 2.0767e+005 7.6838e+015 2.2959e-001 8.4948e+003 Xe-133m 6.3338e+003 2.3435e+014 7.0024e-003 2.5909e+002 Xe-135 5.5425e+004 2.0507e+015 6.1276e-002 2.2672e+003 Xe-135m 7.2682e+002 2.6892e+013 8.0353e-004 2.9731e+001 Xe-138 1.0900e-005 4.033Oe+005 1.2051e-011 4.4587e-007 Y-90 1.4428e-001 5.3384e+009 1.5951e-007 5.9019e-003 Y-91 1.9821e-001 7.3338e+009 2.1913e-007 8.1079e-003 Y-91m 5.5502e+000 2.0536e+011 6.1360e-006 2.2703e-001 Y-92 3.7021e+000 1.3698e+011 4.0929e-006 1.5144e-001 Y-93 1.1681e-001 4.3218e+009 1.2913e-007 4.7780e-003 Zr-95 2.3237e-001 8.5978e+009 2.5690e-007 9.5053e-003 Zr-97 1.6810e-001 6.2197e+009 1.8584e-007 6.8762e-003 Buildup The material reference is : Shield I Integration Parameters X Direction 20 Y Direction 40 Z Direction 40 Results Ener Actiyity Fluence Rate Fluence Rate ExDosure Rate Fx=osure Rate Key phoj;ons/spc MeV/QM2/sec MeV/Cm2/sec mR/hr mR/hr No Buildup With Buildup No Bsidu With Buildun 0.015 9.660e+08 0.000e+00 1.326e-28 0.000e+00 1.138e-29 0.02 2.200e+10 1.762e-222 4.754e-27 6.102e-224 1.647e-28 0.03 3.960e+15 7.846e-69 1.892e-21 7.776e-71 1.875e-23 0.04 7.505e+10 2.695e-37 9.508e-26 1.192e-39 4.205e-28 0.05 2.357e+11 8.195e-24 8.387e-23 2.183e-26 2.234e-25 0.06 9.896e+10 2.343e-18 6.443e-17 4.654e-21 1.280e-19 0.08 2.820e+15 5.330e-09 2.970e-07 8.434e-12 4.699e-10 0.1 1.023e+12 2.073e-10 2.131e-08 3.171e-13 3.261e-11 0.15 2.255e+14 6.722e-06 1.169e-03 1.107e-08 1.926e-06 0.2 1.969e+15 7.422e-04 1.357e-01 1.310e-06 2.394e-04 0.3 4.112e+13 3.500e-04 4.584e-02 6.638e-07 8.695e-05 0.4 4.379e+13 2.912e-03 2.575e-01 5.674e-06 5.016e-04 0.5 4.194e+13 1.286e-02 8.05le-01 2.525e-05 1.580e-03 0.6 7.450e+13 7.610e-02 3.548e+00 1.485e-04 6.926e-03 0.8 1.161e+14 7.329e-01 2.147e+01 1.394e-03 4.084e-02

Page  : 4 Attachment 6 to PSL-ENG-SENS.04-037, Rev. 0 DOS File: SL2ENVO4.MS5 Page 62 of 121 Run Date: January 8, 2003 Run Time: 3:26:01 PM Duration: 00:01:55 Energy Activity Fluence Rate Fluence Rate Exposure Rate Exoosure Rate May photons/sec MeV/CM2/seg MeV/CM2/sec mgLhr mR/hr No Buil up With Buildup NQ Buildup With Buildup 1.0 3.437e+13 8.324e-01 1.721e+01 1.534e-03 3.172e-02 1.5 7.384e+13 1.720e+01 1.983e+02 2.893e-02 3.336e-01 2.0 3.042e+14 2.936e+02 2.380e+03 4.540e-01 3.680e+00 3.0 1.685e+13 9.145e+01 4.831e+02 1.241e-01 6.554e-01 4.0 1.032e+07 1.580e-04 6.427e-04 1.955e-07 7.952e-07 5.0 5.505e+11 1.700e+01 5.747e+01 1.949e-02 6.588e-02 TOTALS: 9.723e+15 4.209e+02 3.162e+03 6.296e-01 4.817e+00

Attachment 6 to PSL-ENG-SENS-04-037, Rev. 0 MicroShield v5.05 (5.05-0000) Page 63 of 121 Grove Engineering Page  : 1 File Ref:

DOS File: SL2ENVO5.MS5 Date:

Run Date: January 8, 2003 By:

Run Time: 3:44:41 PM Checked:

Duration: 00:01:50 Case

Title:

sl2envO05

Description:

St. Lucie Unit 2 LOCA (External Cloud to CR) - 24 h Geometry: 13 - Rectangular Volume Source Dimensions Length 1.Oe+5 cm 3281 ft 0.0 in Width 3.0e+3 cm 98 ft 8.0 in Height 3.Oe+3 cm 98 ft 8.0 in Dose Points X ' X z

1. 11.OOe+05 cm 1.50e+03 cm 1.50e+03 cm 3293 ft49 ft 4.0 in49 ft 4.0 in Shields Shield Name Dimension Material 1ensity Source 3.19e+07 ft3 Air . 0.00122 Shield 1 2.0 ftConcrete2.35 Air Gap Air 0.00122 Source Input Grouping Method : Standard Indices Number of Groups : 25 Lower Energy Cutoff : 0.015 Photons < 0.015 s Excluded Library : Grove Nuclidc curies% begauerels uCi/cm3 Ba/cm3 Am-241 4.2700e-005 1.5799e+006 4.7207e-011 1.7467e-006 Am-242 7.2540e-003 2.6840e+008 8.0196e-009 2.9673e-004 Ba-137m 4.1507e+001 1.5358e+012 4.5888e-005 1.6979e+000 Ba-140 2.3451e+001 8.6769e+011 2.5926e-005 9.5927e-001 Br-82 1.8674e+000 6.9092e+010 2.0645e-006 7.6385e-002 Br-83 3.8822e-002 1.4364e+009 4.2920e-008 1.5880e-003 Ce-141 5.8428e-001 2.1618e+010 6.4595e-007 2.3900e-002 Ce-143 3.2745e-001 1.2116e+010 3.6201e-007 1.3394e-002 Ce-144 4.9776e-001 1.8417e+010 5.5030e-007 2.0361e-002 Cm-242 1.3761e-002 5.0915e+008 1.5213e-008 5.6289e-004 Cm-244 2.0725e-003 7.6682e+007 2.2912e-009 8.4776e-005 Cs-134 7.5933e+001 2.8095e+012 8.3948e-005 3.1061e+000 Cs-134m 5.5007e-002 2.0353e+009 6.0813e-008 2.2501e-003 Cs-136 1.9413e+001 7.1826e+011 2.1462e-005 7.9408e-001 Cs-137 3.7444e+001 1.3854e+012 4.1396e-005 1.5316e+000 Eu-154 3.1605e-003 1.1694e+008 3.4941e-009 1.2928e-004 Eu-155 2.1407e-003 7.9207e+007 2.3667e-009 8.7567e-005 Eu-156 5.3540e-002 1.9810e+009 5.9191e-008 2.1901e-003 1-130 5.7260e+000 2.1186e+011 6.3303e-006 2.3422e-001 I-131 3.3602e+002 1.2433e+013 3.7148e-004 1.3745e+001 I-132 6.6487e-001 2.4600e+010 7.3505e-007 2.7197e-002 I-133 3.2211e+002 1.1918e+013 3.5611e-004 1.3176e+001 I-135 5.3586e+001 1.9827e+012 5.9242e-005 2.1920e+000 Kr-83m 2.8675e+001 1.0610e+012 3.1701e-005 1.1730e+000

?age 2 DOS File: SL2ENVO5.MS5 Attachment 6 to PSL-ENG-SENS-04-037. Rev. 0 Page 64 of 121 Run Date: January 8, 2003 Run Time: 3:44:41 PM Duration: 00:01:50 ruclide curies beccruerela Ba/cm3 Kr-85 5.4843e+003 2.0292e+014 6.0632e-003 2.2434e+002 Kr-85m 2.0720e+003 7.6663e+013 2.2907e-003 8.4755e+001 Kr-87 3.3547e-001 1.2412e+010 3.7088e-007 1.3723e-002 Kr-88 6.4657e+002 2.3923e+013 7.1481e-004 2.6448e+001 La-140 7.9724e+000 2.9498e+011 8.8139e-006 3. 2611e-001 La-141 5.8788e-003 2.1752e+008 6.4993e-009 2.4047e-004 Mo-99 2.6868e+000 9.9411e+010 2.9704e-006 1.0990e-001 Nb-95 2.4007e-001 8.8825e+009 2.6541e-007 9.8200e-003 Nb-95m 1.6867e-003 6.2409e+007 1.8648e-009 6.8996e-005 Nd-147 8.8868e-002 3.2881e+009 9.8248e-008 3.6352e-003 Np-238 1.9149e-001 7.0852e+009 2.1170e-007 7.833le-003 Np-239 7.1857e+000 2.6587e+011 7.9442e-006 2.9394e-001 Pd-109 2.6878e-001 9.9449e+009 2.9715e-007 1.0995e-002 Pm-147 2.3414e-002 8.6631e+008 2.5885e-008 9.5775e-004 Pm-148 3.8437e-002 1.4222e+009 4.2494e-008 1.5723e-003 Pm-148m 5.5029e-003 2.0361e+008 6.0837e-009 2.2510e-004 Pm-149 6.7996e-002 2.5159e+009 7.5173e-008 2.7814e-003 Pm-151 1.8475e-002 6.8357e+008 2.0425e-008 7.5572e-004 Pr-143 2.2388e-001 8.2834e+009 2.4751e-007 9.1577e-003 Pr-144 5.0986e-001 1.8865e+010 5.6367e-007 2.0856e-002 Pu-238 2.6994e-003 9.9877e+007 2.9843e-009 1.1042e-004 Pu-239 1.8903e-004 6.9940e+006 2.0898e-010 7.7322e-006 Pu-240 3.1769e-004 1.1755e+007 3.5122e-010 1.2995e-005 Pu-241 8.0004e-002 2.9601e+009 8.8448e-008 3.2726e-003 Pu-243 1.0364e-002 3.8346e+008 1.1458e-008 4.2394e-004 Rb-86 6.5979e-001 2.4412e+010 7.2943e-007 2.6989e-002 Rb-88 7.2561e+002. 2.6847e+013 8.0220e-004 2.9681e+001 Rh-103m 3.2082e+000 1.1870e+011 3.5468e-006 1.3123e-001 Rh-105 1.6445e+000 6.0847e+010 1.8181e-006 6.7270e-002 Rh-106 2.8893e+000 1.0690e+011 3.1943e-006 1.1819e-001 Ru-103 3.1910e+000 1.1807e+011 3.5278e-006 1.3053e-001 Ru-105 5.8633e-002 2.1694e+009 6.4822e-008 2.3984e-003 Ru-106 1.6110e+000 5.9608e+010 1.7811e-006 6.5900e-002 Sb-124 1.0493e-001 3.8824e+009 1.1600e-007 4.2922e-003 Sb-125 8.8368e-001 3.2696e+010 9.7695e-007 3.6147e-002 Sb-126 5.7888e-002. 2.1419e+009 6.3998e-008 2.3679e-003 Sb-127 3.9494e+000 1.4613e+011 4.3663e-006 1.6155e-001 Sb-129 2.8020e-001 1.0367e+010 3.0978e-007 1.1462e-002 Sm-153 7.010Oe-002 2.5941e+009 7.7510e-008 2.8679e-003 Sr-89 1.2589e+001 4.6578e+011 1.3917e-005 5.1495e-001 Sr-90 1.8212e+000 6.7386e+010 2.0135e-006 7.4498e-002 Sr-91 2.7692e+000 1.0246e+011 3.0615e-006 1.1328e-001 Sr-92 3.7728e-002 1.3960e+009 4.1711e-008 1.5433e-003 Tc-99m 2.5733e+000 9.5210e+010 2.8449e-006 1.0526e-001 Te-125m 1.943le-001 7.1896e+009 2.1482e-007 7.9484e-003 Te-127 4.2015e+000 1.5546e+011 4.6450e-006 1.7186e-001 Te-127m 6.3756e-001 2.3590e+010 7.0485e-007 2.6080e-002 Te-129 1.5491e+000 5.7317e+010 1.7126e-006 6.3367e-002 Te-129m 1.9098e+000 7.0661e+010 2.1113e-006 7.8119e-002 Te-131 7.4461e-001 2.7550e+010 8.2320e-007 3.0458e-002 Te-131m 3.2530e+000 1.2036e+011 3.5964e-006 1.3307e-001 Te-132 4.2683e+001 1.5793e+012 4.7189e-005 1.7460e+000 Xe-13lm 3.9110e+003 1.4471e+014 4.3238e-003 1.5998e+002

Page 3 Attachment 6 to PSL-ENG-SENS-04037. Rev. 0 DOS File: SL2ENVO5.MS5 Page 65 of 121 Run Date: January 8, 2003 Run Time: ,3:44:41 PM Duration: 00:01:50 Nucli-de becauerels Uci /cm3 Ba/cm3 Xe-133 6.4167e+005 2.3742e+016 7.0940e-001 2.6248e+004 Xe-133m 1.7576e+004 6.5032e+014 1.9432e-002 7.1897e+002 Xe-135 7.4400e+004 2.7528e+015 8.2253e-002 3.0434e+003 Xe-135m 1.8372e+002 6.7975e+012 2.0311e-004 7.5150e+000 Y-90 4.1325e-001 1.5290e+010 4.5686e-007 1.6904e-002 Y-91 2.4373e-001 9.0178e+009 2.6945e-007 9.9697e-003 Y-91m 1.7683e+000 6.5425e+010 1.9549e-006 7.2331e-002 Y-92 3.6295e-001 1.3429e+010 4.0126e-007 1.4847e-002 Y-93 3.9657e-002 1.4673e+009 4.3843e-008 1.6222e-003 Zr-95 2.3485e-001 8.6895e+009 2.5964e-007 9.6066e-003 Zr-97 8.8780e-002 3.2849e+009 9.8151e-008 3.6316e-003 Buildup The material reference is  : Shield 1 Integration Parameters X Direction 20 y Direction 40 z Direction 40 Results Enerov Activity Fluence Rate. Fluence Rate ExDosure Rate Exoosure Rate MeV pbotons/sec MeV/CM2/sgec MeV/CM2/kgQ mR/hr mR/hr No Buildup With BuilduD No Buildu With Buildun 0.015 3.275e+08 0.000e+00 4.496e-29 0.000e+00 3.857e-30 0.02 2.050e+10 1.641e-222 4.428e-27 5.684e-224 1.534e-28 0.03 1.198e+16 2.373e-68 5.722e-21 2.352e-70 5.671e-23 0.04 7.220e+10 2.592e-37 9.147e-26 1.147e-39 4.045e-28 0.05 2.082e+11 7.240e-24 7.409e-23 1.929e-26 1.974e-25 0.06 9.625e+10 2.279e-18 6.266e-17 4.526e-21 1.245e-19 0.08 8.714e+15 1.647e-08 9.175e-07 2.606e-11 1.452e-09 0.1 3.154e+11 6.387e-11 6.568e-09 9.772e-14 1.005e-11 0.15 6.975e+13 2.079e-06 3.616e-04 3.423e-09 5.955e-07 0.2 2.567e+15 9.674e-04 1.768e-01 1.707e-06 3.121e-04 0.3 1.239e+13 1.054e-04 1.381e-02 2.000e-07 2.620e-05 0.4 2.706e+13 1.800e-03 1.591e-01 3.507e-06 3.100e-04 0.5 1.815e+13 5.566e-03 3.483e-01 1.092e-05 6.838e-04 0.6 9.195e+13 9.392e-02 4.379e+00 1.833e-04 8.548e-03 0.8 1.249e+13 7.882e-02 2.309e+00 1.499e-04 4.392e-03 1.0 3.970e+12 9.615e-02 1.988e+00 1.772e-04 3.664e-03 1.5 6.279e+12 1.462e+00 1.686e+01 2;460e-03 2.837e-02 2.0 2.072e+13 2.000e+01 1.621e+02 3.092e-02 2.506e-01 3.0 9.581e+11 5.199e+00 2.746e+01 7.054e-03 3.726e-02 5.0 3.849e+10 1.189e+00 4.019e+00 1.363e-03 4.607e-03 TOTALS: 2.352e+16 2.812e+01 2.198e+02 4.232e-02 3.388e-01

Attachment 6 to PSL-ENG-SENS-04-037, Rev. 0 MicroShield v5.05 (5.05-0000) Page 66 of 121 Grove Engineering Page  : 1 File Ref:

DOS File: SL2ENVO6.MS5 Date:

Run Date: January 8, 2003I By:

Run Time: 3:47:40 PM Checked:

Duration: 00:01:26 Case

Title:

sl2envO6

Description:

St. Lucie Unit 2 LOCA (External Cloud to CR) - 96 h Geometry: 13 - Rectangular Volume Source Dimensions Length 1.Oe+5 cm 3281 ft 0.0 in Width 3.0e+3 cm 98 ft 8.0 in Height 3.0e+3 cm 98 ft 8.0 in Dose Points X Y z i# 1l.OOe+05 cm 1.50e+03 cm 1.50e+03 cm 3293 ft49 ft 4.0 in49 ft 4.0 in Shields Shield Name DimensioQn MaterialDensity Source 3.19e+07 ft3 Air 0.00122 Shield 1 2.0 ftConcrete2.35 Air Gap Air 0.00122 Source Input Grouping Method : Standard Indices Number of Groups : 25 Lower Energy Cutoff : 0.015.

Photons < 0.015 : Excluded Library : Grove ucli-de becauerels uCi/cm3 Ba/cm3 Ba-137m 1.2109e+000 4.4803e+010 1.3387e-006 4.9532e-002 Br-82 8.6088e-001 3.1853e+010 9.5175e-007 3.5215e-002 Cs-134 2.2096e+000 8.1755e+010 2.4428e'006 9.0385e-002 Cs-136 4.8330e-001 1.7882e+010 5.3431e-007 1.9770e-002 Cs-137 1.0924e+000 4.0419e+010 1.2077e-006 4.4685e-002 1-130 1.9143e-001 7.0827e+009 2.1163e-007 7.8303e-003 1-131 4.9176e+002 1.8195e+013 5.4367e-004 2.0116e+001 I-133 5.5417e+001 2.0504e+012 6.1267e-005 2.2669e+000 1-135 5.3428e-002 1.9768e+009 5.9068e-008 2.1855e-003 Kr-85 1.4076e+004 5.2082e+014 1.5562e-002 5.7580e+002 Kr-85m 7.7271e-002 2.8590e+009 8.5427e-008 3.1608e-003 Kr-88 3.8768e-005 1.4344e+006 4.2860e-011 1.5858e-006 Rb-86 1.7222e-002 6.3721e+008 1.9040e-008 7.0447e-004 Sr-89 7.4608e-005 2.7605e+006 8.2483e-011 3.0519e-006 Xe-131m 8.6889e+003 3.2149e+014 9.6060e-003 3.5542e+002 Xe-133 1.1467e+006 4.2427e+016 1.2677e+000 4.6906e+004 Xe-133m 1.8697e+004 6.9179e+014 2.0670e-002 7.6480e+002 Xe-135 1.2021e+003 4.4478e+013 1.3290e-003 4.9173e+001 Xe-135m 1.9012e-001 7.0343e+009 2.1018e-007 7 .7768e-003 Buildup The material reference is : Shield 1 Integration Parameters X Direction 20

Page.  : 2 Attachment 6 to PSL-ENG-SENS-04-037. Rev. 0 DOS File: SL2ENVO6.MS5 Page 67 of 121 Run Date: January 8, 2003 Run Time: 3:47:40 PM Duration: 00:01:26 Y Direction 40 Z Direction 40 Results neroy Activity Fluence Rate Fluence Rate ExDosure Rate ExDosure Rate Key photons/ge-C MeV/CM2LmL MeV/cm2/seg mg/hr mR/hr No Buildur With Buildup No Builduw With Buildup 0.03 2.092e+16 4.145e-68 9.994e-21 4.108e-70 9.904e-23 0.04 1.334e+09 4.791e-39 1.690e-27 2.119e-41 7.476e-30 0.06 2.229e+09 5.276e-20 1.451e-18 1.048e-22 2.882e-21 0.08 1. 557e+16 2.943e-08 1.640e-06 4.657e-11 2.594e-09 0.1 3.013e+08 6.102e-14 6.275e-12 9.335e-17 9.600e-15 0.15 6.434e+12 1.918e-07 3.336e-05 3.158e-10 5.493e-08 0.2 1.415e+14 5.333e-05 9.749e-03 9.413e-08 1.721e-05 0.3 1.212e+12 1.032e-05 1.351e-03 1.957e-08 2.563e-06 0.4 1.504e+13 1.000e-03 8.843e-02 1.949e-06 1.723e-04 0.5 4.160e+12 1.276e-03 7.985e-02 2.504e-06 1.567e-04 0.6 2.958e+12 3.022e-03 1.409e-01 5.898e-06 2.750e-04 0.8 6.235e+11 3.936e-03 1.153e-01 7.486e-06 2.193e-04 1.0 8.037e+10 1.947e-03 4.024e-02 3.588e-06 7.417e-05 1.5 6.859e+10 1.597e-02 1.842e-01 2.688e-05 3.099e-04 2.0 2.545e+08 2.456e-04 1.990e-03 3.797e-07 3.078e-06 3.0 1.107e+04 6.006e-08 3.173e-07 8.148e-11 4.304e-10 TOTALS: 3.666e+16 2.746e-02 6.620e-01 4.880e-05 1.230e-03

Attachment 6 to PSL-ENG-SENS-04-037, Rev. 0 MicroShield v5.05 (5.05-0000) Page680of21 Grove Engineering Page  : 1 File Ref:

DOS File: SL2ENVO7.MS5 Date:

Run Date: January 8, 2003 By:

Run Time: 3:50:45 PM Checked:

Duration: 00:01:22 Case

Title:

sl2envO7

Description:

St. Lucie Unit 2 LOCA (External Cloud to CR) - 720 h Geometry: 13 - Rectangular Volume Source Dimensions Length 1.Oe+5 cm 3281 ft 0.0 in Width 3.Oe+3 cm 98 ft 8.0 in Height 3.Oe+3 cm 98 ft 8.0 in Dose Points X Y X

1. 11.OOe+05 cm 1.50e+03 cm 1.50e+03 cm 3293 ft49 ft 4.0 in49 ft 4.0 in Shields Shield Name Dimension Materialpensitv Source 3.19e+07 ft3 Air 0.00122 Shield 1 2.0 ftConcrete2.35 Air Gap Air 0.00122 Source Input Grouping Method : Standard Indices Number of Groups : 25 Lower Energy Cutoff : 0.015 Photons < 0.015 : Excluded Library : Grove Nuclide becauerels uCi/cm3 Ba/cm 3 Ba-137m 9.1532e+000 3.3867e+011 1.0119e-005 3.7442e-001 Br-82 5.1616e-005 1.9098e+006 5.7064e-0ll 2.1114e-006 Cs-134 1.6334e+001 6.0436e+011 1.8058e-005 6.6815e-001 Cs-136 9.2452e-001 3.4207e+010 1.0221e-006 3.7818e-002 Cs-137 8.2571e+000 3.0551e+011 9.1286e-006 3.3776e-001 I-131 6.5672e+002 2.4299e+013 7.2604e-004 2.6863e+001 Kr-85 8.6078e+004 3.1849e+015 9.5164e-002 3.5211e+003 Rb-86 4.9638e-002 1.8366e+009 5.4877e-008 2.0305e-003 Sr-89 3.9417e-004 1.4584e+007 4.3577e-010 1.6124e-005 Xe-131m 1.4945e+004 5.5295e+014 1.6522e-002 6.1132e+002 Xe-133 2.3755e+005 8.7895e+015 2.6263e-001 9.7172e+003 Xe-133m 3.3906e+001 1.2545e+012 3.7485e-005 1.3869e+000 Buildup The material reference is : Shield 1 Integration Parameters X Direction *20 Y Direction 40 Z Direction 40 Results

Page 2 SL2ENVO7.MS5 Attachment 6 to PSL-ENG-SENS-04-037, Rev. 0 DOS File: Page 69 of 121 Run Date: January 8, 2003 Run Time: 3:50:45 PM Duration: 00:01:22 nergy Activitv Fluence Rate Fluence Rate ExDosure Rate ExDosure Rate Me hot~ons/sec MeV/CM2 L-L= MeV/CM2/seg mg/hr mRn/hr No BMUidup With BuilduD No Buildup With Buildup 0.03 4.519e+15 8.954e-69 2.159e-21 8.874e-71 2.140e-23 0.04 6.713e+09 2.410e-38 8.505e-27 1.066e-40 3.761e-29 0.06 4.263e409 1.009e-19 2.776e-18 2.005e-22 5.513e-21 0.08 3.226e+15 6.097e-09 3.397e-07 9.649e-12 5.376e-10 0.1 1.398e+08 2.832e-14 2.912e-12 4.333e-17 4.455e-15 0.15 1.084e+13 3.231e-07 5.621e-05 5.321e-10 9.257e-08 0.2 6.455e+12 2.433e-06 4.447e-04 4.294e-09 7.849e-07 0.3 1.609e+12 1.369e-05 1.793e-03 2.597e-08 3.402e-06 0.4 1.972e+13 1.312e-03 1.160e-01 2.556e-06 2.259e-04 0.5 1.392e+13 4.269e-03 2.672e-01 8.379e-06 5.245e-04 0.6 2.856e+12 2.917e-03 1.360e-01 5.695e-06 2.655e-04 0.8 1.041e+12 6.572e-03 1.925e-01 1.250e-05 3.662e-04 1.0 5.105e+10 1.236e-03 2.556e-02 2.279e-06 4.711e-05 1.5 1.837e+10 4.279e-03 4.934e-02 7.200e-06 8.301e-05 2.0 2.164e+03 2.088e-09 1.692e-08 3.229e-12 2.617e-11 TOTALS: 7.802e+15 2.060e-02 7.889e-01 3.864e-05 1.517e-03

Attachment 6 to PSL-ENG-SENS-04-037, Rev. 0 MicroShield v5.05 (5.05-0000) Page 70 of 121 Grove Engineering Page  : 1 File Ref:

DOS File: SL1MS01.MS5 Date:

Run Date: March 10, 2003 By:

Run Time: 4:12:20 PM Checked:

Duration: 00:00:58 Case

Title:

sims01

Description:

St. Lucie Unit 1 LOCA (Containment to CR) - 0.5083 h Geometry: 7 - Cylinder Volume - Side Shields Source Dimensions Height 5.3e+3 cm 172 ft 5.0 in Radius 2.le+3 cm 70 ft Dose Points X Y. Z

1. 1 3.26e+03 cm 1402.08 cm 0 cm 106 ft 10.7 in 46 ft 0.0 in Shields

.9hielclnge, DImenqjqon 114tq~rx aL3,tz Source 2.65e+06 ft3 Water 0.000598 Shield 1 .167 ft Iron 7.86 Shield 2 3.833 ft Air 0.00122 Shield 3 3.0 ftConcrete2.35 Transition 17.89 ft Air 0.00122 Shield 5 2.0 ftConcrete2.35 Air Gap Air 0.00122 Source Input Grouping Method : Standard Indices Number of Groups : 25 Lower Energy Cutoff : 0.015 Photons < 0.015 : Excluded Library s Grove IncqAce. ct3Zr3eLsL ]q/.c.,n 3 Ba-137m 2.3266e+005 8.6084e+015 3.0956e+000 1.1454e+005 Br-82 1.2507e+004 4.6277e+014 1.6641e-001 6.1573e+003 Br-83 1.4913e+005 5.5177e+015 1.9842e+000 7.3414e+004 Br-84 1.5184e+005 5.6179e+015 2.0202e+000 7.4748e+004 Cs-134 5.3900e+005 1.9943e+016 7.1715e+000 2.6535e+005 Cs-134m 1.0708e+005 3.9620e+015 1.4247e+000 5.2716e+004 Cs-136 1.4499e+005 5.3646e+015 1.9291e+000 7.1377e+004 Cs-137 2.6558e+005 9.8264e+015 3.5336e+000 1.3074e+005 Cs-138 2.1517e+006 7.9612e+016 2.8629e+001 1.0593e+006 I-130 9.0283e+004 3.3405e+015 1.2012e+000 4.4446e+004 I-131 1.5420e+006 5.7054e+016 2.0517e+001 7.5912e+005 I-132 2.0795e+006 7.6940e+016 2.7668e+001 1.0237e+006 I-133 2.9541e+006 1.0930e+017 3.9305e+001 1.4543e+006 I-134 2.5737e+006 9.5227e+016 3.4243e+001 1.2670e+006 I-135 2.6577e+006 9.8335e+016 3.5361e+001 1.3084e+006 Kr-83m 4.2148e+005 1.5595e+016 5.6079e+000 2.0749e+005 Kr-85 5.6958e+004 2.1075e+015 7.5784e-001 2.8040e+004 Kr-85m 8.1535e+005 3.0168e+016 1.0848e+001 4.0139e+005 Kr-87 1.2679e+006 4.6912e+016 1.6870e+001 6.2418e+005 Kr-88 2.0754e+006 7.6788e+016 2.7613e+001 1.0217e+006 Rb-86 4.8527e+003 1.7955e+014 6.4566e-002 2.3889e+003

jeage DOS File: SLlMSOl.MS5 Attachment 6 to PSL-ENG-SENS.04.037. Rev. 0 Run Date: March 10, 2003 Run Time: 4:12:20 PM Duration: 00:00:58 Nuclide curies becauerels Rb-88 1.2369e+006 4.5763e+016 1.6457e+001 6.0889e+005 Rb-89 3.1791e+005 1.1763e+016 4.2298e+000 1.5650e+005 Sr-89 5.0848e+001 1.8814e+012 6.7654e-004 2.5032e+001 Xe-131m 4.2431e+004 1.5700e+015 5.6455e-001 2.0889e+004 Xe-133 7.3767e+006 2.7294e+017 9.8148e+001 3.6315e+006 Xe-133m 2.3544e+005 8.7114e+015 3.1326e+000 1.1591e+005 Xe-135 2.3261e+006 8.6066e+016 3.0949e+001 1.1451e+006 Xe-135m 1.1733e+006 4.3413e+016 1.5611e+001 5.7762e+005 Xe-138 1.3323e+006 4.9296e+016 1.7727e+001 6.5590e+005 Buildup The material reference is : Shield 3 Integration Parameters Radial 20 Circumferential 20 Y Direction (axial) 40 Results Enerovy Activity Fluence Rate Fluence Rate Exposure Rate ExDosure Rate MeV photons/sec MeV/CM2/sec MeV/CM2/seg mR/hr mR/hr No Buil up With Buildup No Buad i With BuilduD 0.03 1.591e+17 3.707e-311 5.565e-19 3.674e-313 5.515e-21 0.04 4.810e+14 1.157e-146 4.463e-21 5.117e-149 1.974e-23 0.06 6.686e+14 1.700e-59 1.456e-19 3.376e-62 2.891e-22 0.08 1.020e+17 2.497e-35 5.283e-17 3.952e-38 8.360e-20 0.1 2.800e+14 2.050e-29 6.702e-19 3.137e-32 1.025e-21 0.15 3.554e+16 1.724e-19 6.294e-16 2.839e-22 1.036e-18 0.2 1.081e+17 9.743e-16 1.816e-12 1.720e-18 3.204e-15 0.3 3.439e+16 1.145e-12 1.397e-09 2.172e-15 2.650e-12 0.4 1.119e+17 6.172e-10 4.222e-07 1.203e-12 8.226e-10 0.5 2.087e+17 4.747e-08 1.972e-05 9.318e-11 3.870e-08 0.6 1.782e+17 7.332e-07 1.989e-04 1.431e-09 3.882e-07 0.8 3.145e+17 9.952e-05 1.410e-02 1.893e-07 2.681e-05 1.0 1.583e+17 1.202e-03 1.036e-01 2.215e-06 1.910e-04 1.5 1.632e+17 2.430e-01 9.347e+00 4.088e-04 1.573e-02 2.0 1.160e+17 4.384e+00 1.051e+02 6.780e-03 1.625e-01 3.0 1.707e+16 2.894e+01 3.894e+02 3.927e-02 5.283e-01 4.0 5.372e+14 8.123e+00 7.746e+01 1.005e-02 9.583e-02 5.0 6.562e+13 4.105e+00 3.062e+01 4.706e-03 3.511e-02 TOTALS: 1.709e+18 4.580e+01 6.121e+02 6.121e-02 8.377e-01

Attachment 6 to PSL-ENG-SENS-04-037, Rev. 0 icroShield v5.05 (5. 05-OOOO) Page 72 of 121 Grove Engineering Page  : 1 File Ref:

DOS File: SLlMS02.MS5 Date:

Run Date: M arch 10, 2003 By:

Run Time: 4 :23:18 PM Checked:

Duration: 0 0:01:06 Case

Title:

sllmsO2

Description:

St. Lucie Unit 2 LOCA (Containment to CR) - 2 h Geometry: 7 - Cylinder Volume - Side Shields Source Dimensions Height 5.3e+3 cm 172 ft 5.0 in Radius 2.le+3 cm 70 ft Dose Points X Y. Z.

1. 1 3.26e+03 cm 1402.08 cm 0 cm 106 ft 10.7 in 46 ft 0.0 in Shields

$h)ie,.cj lq~e, Dimenrs:LqA 114te~qrl.j6 qnqjity, Source 7.52e+10 cm3 Water 0.000598 Shield 1 5.08 cm Iron 7.86 Shield 2 116.84 cm Air 0.00122 Shield 3 91.44 cmConcrete2.35 Transition 545.287 cm Air 0.00122 Shield 5 60.96 cmConcrete2.35 Air Gap Air 0.00122 Source Input Grouping Method : Standard Indices Number of Groups : 25 Lower Energy Cutoff : 0.015 Photons < 0.015 : Excluded Library : Grove ntzc.Jcile. jq/.crq3.

Am-241 4.6934e-001 1.7366e+010 6.2447e-006 2.3105e-001 Am-242 2.0813e+002 7.7009e+012 2.7693e-003 1.0246e+002 Ba-137m 3.9292e+005 1.4538e+016 5.2279e+000 1.9343e+005 Ba-139 1.0422e+005 3.8561e+015 1.3867e+000 5.1307e+004 Ba-140 2.7301e+005 1.OlOle+016 3.6325e+000 1.3440e+005 Ba-141 2.7203e+003 1.0065e+014 3.6194e-002 1.3392e+003 Br-82 2.2740e+004 8.4138e+014 3.0256e-001 1.1195e+004 Br-83 1.8114e+005 6.7021e+015 2.4101e+000 8.9172e+004 Br-84 4.0408e+004 1.4951e+015 5.3764e-001 1.9893e+004 Ce-141 6.5813e+003 2.4351e+014 8.7566e-002 3.2399e+003 Ce-143 5.7577e+003 2.1303e+014 7.6607e-002 2.8345e+003 Ce-144 5.5254e+003 2.0444e+014 7.3517e-002 2.7201e+003 Cm-242 1.5257e+002 5.6452e+012 2.0300e-003 7.5111e+001 Cm-244 2.2956e+001 8.4937e+011 3.0543e-004 1.1301e+001 Cs-134 7.2488e+005 2.6821e+016 9.6447e+000 3.5685e+005 Cs-134m 1.0083e+005 3.7305e+015 1.3415e+000 4.9635e+004 Cs-136 1.9436e+005 7.1915e+015 2.5861e+000 9.5684e+004 Cs-137 3.5717e+005 1.3215e+016 4.7522e+000 1.7583e+005 Cs-138 6.3195e+005 2.3382e+016 8.4082e+000 3.1110e+005 Eu-154 3.5012e+001 1.2954e+012 4.6584e-004 1.7236e+001 Eu-155 2.3719e+001 8.7760e+011 3.1559e-004 1.1677e+001

Page 2 Attachment 6 to PSL-ENG-SENS-04-037, Rev. 0 DOS File: SL1MS02.MS5 Page 73 of 121 Run Date: March 10, 2003 Run Time: 4:23:18 PM Duration: 00:01:06 Nuclide curies becauergla Ui&/CM3 Eu-156 6.1832e+002 2.2878e+013 8.2269e-003 3.0439e+002 I-130 1.5546e+005 5.7519e+015 2.0684e+000 7.6530e+004 I-131 2.8759e+006 1.0641e+017 3.8264e+001 1.4158e+006 I-132 3.5677e+006 1.3200e+017 4.7469e+001 1.7564e+006 I-133 5.3123e+006 1.9656e+017 7.0681e+001 2.6152e+006 I-134 2.2090e+006 8.1731e+016 2.9391e+001 1.0874e+006 I-135 4.2552e+006 1.5744e+017 5.6616e+001 2.0948e+006 Kr-83m 6.5258e+006 2.4145e+017 8.6827e+001 3.2126e+006 Kr-85 1.1527e+006 4.2650e+016 1.5337e+001 5.6747e+005 Kr-85m 1.3100e+007 4.8470e+017 1.7430e+002 6.4490e+006 Kr-87 1.1379e+007 4.2103e+017 1.5140e+002 5.6019e+006 Kr-88 2.9184e+007 1.0798e+018 3.8830e+002 1.4367e+007 La-140 5.2920e+003 1.9580e+014 7.0411e-002 2.6052e+003 La-141 2.6361e+003 9.7536e+013 3.5074e-002 1.2977e+003 La-142 1.0166e+003 3.7613e+013 1.3526e-002 5.0045e+002 Mo-99 3.7492e+004 1.3872e+015 4.9884e-001 1.8457e+004 Nb-95 2.6596e+003 9.8405e+013 3.5387e-002 1.3093e+003 Nb-95m 1.8757e+001 6.9399e+011 2.4956e-004 9.2337e+000 Nb-97 9.2919e+002 3.4380e+013 1.2363e-002 4.5743e+002 Nd-147 1.0429e+003 3.8587e+013 1.3876e-002 5.1341e+002 Np-238 2.8634e+003 1.0595e+014 3.8098e-002 1.4096e+003 Np-239 1.0424e+005 3.8567e+015 1.3869e+000 5.1315e+004 Pd-109 9.2683e+003 3.4293e+014 1.2332e-001 4.5627e+003 Pm-147 2.5882e+002 9.5763e+012 3.4437e-003 1.2742e+002 Pm-148 4.7883e+002 1.7717e+013 6.3709e-003 2.3572e+002 Pm-148m 6.1894e+001 2.2901e+012 8.2351e-004 3.0470e+001 Pm-149 1.0038e+003 3.7139e+013 1.3355e-002 4.9414e+002 Pm-151 3.5005e+002 1.2952e+013 4.6575e-003 1.7233e+002 Pr-143 2.3757e+003 8.7901e+013 3.1609e-002 1.1695e+003 Pr-144 4.4701e+003 1.6539e+014 5.9476e-002 2.2006e+003 Pr-144m 9.6957e+001 3.5874e+012 1.2900e-003 4.7731e+001 Pu-238 2.9846e+001 1.1043e+012 3.9711e-004 1.4693e+001 Pu-239 2.0870e+000 7.7220e+010 2.7768e-005 1.0274e+000 Pu-240 3.5186e+000 1.3019e+011 4.6816e-005 1.7322e+000 Pu-241 8.8619e+002 3.2789e+013 1.1791e-002 4.3626e+002 Pu-243 2.4900e+003 9.2130e+013 3.3130e-002 1.2258e+003 Rb-86 6.5114e+003 2.4092e+014 8.6636e-002 3.2055e+003 Rb-88 1.1506e+007 4.2572e+017 1.5309e+002 5.6643e+006 Rb-89 7.2189e+003 2.6710e+014 9.6049e-002 3.5538e+003 Rh-103m 3.5254e+004 1.3044e+015 4.6906e-001 1.7355e+004 Rh-105 2.5285e+004 9.3555e+014 3.3642e-001 1.2448e+004 Rh-106 3.6760e+004 1.3601e+015 4.8910e-001 1.8097e+004 Ru-103 3.5919e+004 1.3290e+015 4.7791e-001 1.7683e+004 Ru-105 2.0143e+004 7.4528e+014 2.6800e-001 9.9161e+003 Ru-106 1.7874e+004 6.6133e+014 2.3782e-001 8.7992e+003 Sb-124 1.1745e+003 4.3456e+013 1.5627e-002 5.7819e+002 Sb-125 9.7935e+003 3.6236e+014 1.3030e-001 4.8213e+003 Sb-126 6.7486e+002 2.4970e+013 8.9791e-003 3.3223e+002 Sb-127 5.1591e+004 1.9089e+015 6.8643e-001 2.5398e+004 Sb-129 1.0589e+005 3.9180e+015 1.4089e+000 5.2129e+004 Sm-153 1.0764e+003 3.9825e+013 1.4321e-002 5.2988e+002 Sr-89 1.4115e+005 5.2225e+015 1.8780e+000 6.9486e+004 Sr-90 2.0172e+004 7.4638e+014 2.6840e-001 9.9307e+003

Page  : 3 Attachment 6 to PSL-ENG-SENS-04-037, Rev. 0 DOS File: SLlMS02.MS5 Page 74 of 121 Run Date: March 10, 2003 Run Time: 4:23:18 PM Duration: 00:01:06 Nuclrde curies becauergls ,UCi/CM3 wBq/CM3 Sr-91 1.5271e+005 5.6501e+015 2.0318e+000 7.5176e+004 Sr-92 1.1610e+005 4.2956e+015 1.5447e+000 5.7154e+004 Tc-99m 3.3457e+004 1.2379e+015 4.4515e-001 1.6471e+004 Tc-101 1.0071e+002 3.7262e+012 1.3399e-003 4.9578e+001 Te-125m 2.1513e+003 7.9597e+013 2.8623e-002 1.0591e+003 Te-127 5.1713e+004 1.9134e+015 6.8805e-001 2.5458e+004 Te-127m 7.0537e+003 2.6099e+014 9.3851e-002 3.4725e+003 Te-129 1.1904e+005 4.4045e4015 1.5839e+000 5.8603e+004 Te-129m 2.1430e+004 7.9292e+014 2.8514e-001 1.0550e+004 Te-131 2.6443e+004 9.7839e+014 3.5183e-001 1.3018e+004 Te-131m 5.9899e+004 2.2163e+015 7.9697e-001 2.9488e+004 Te-132 5.7453e+005 2.1258e+016 7.6442e+000 2.8284e+005 Te-133 1.1622e+004 4.3001e+014 1.5463e-001 5.7214e+003 Te-133m 6.3963e+004 2.3666e+015 8.5104e-001 3.1489e+004 Te-134 8.8518e+004 3.2752e+015 1.1777e+000 4.3577e+004 Xe-131m 8.5764e+005 3.1733e+016 1.1411e+001 4.2221e+005 Xe-133 1.4886e+008 5.5080e+018 1.9807e+003 7.3285e+007 Xe-133m 4.7260e+006 1.7486e+017 6.2880e+001 2.3266e+006 Xe-135 5.1149e+007 1.8925e+018 6.8054e+002 2.5180e+007 Xe-135m 9.4269e+006 3.4880e+017 1.2543e+002 4.6408e+006 Xe-138 3.3838e+005 1.2520e+016 4.5023e+000 1.6658e+005 Y-90 3.2306e+002 1.1953e+013 4.2984e-003 1.5904e+002 Y-91 1.8717e+003 6.9253e+013 2.4903e-002 9.2142e+002 Y-91m 3.1286e+004 1.1576e+015 4.1627e-001 1.5402e+004 Y-92 1.3944e+004 5.1593e+014 1.8553e-001 6.8646e+003 Y-93 1.9879e+003 7.3552e+013 2.6449e-002 9.7862e+002 Zr-95 2.6271e+003 9.7203e+013 3.4954e-002 1.2933e+003 Zr-97 2.4241e+003 8.9692e+013 3.2253e-002 1.1934e+003 Buildup The material reference is : Shield 3 Integration Parameters Radial 20 Circumferential 20 Y Direction (axial) 40 Results Enerov Activity Fluence Rate Fluence Rate Exposure Rate ExDosure Rate MeVf photonslapQ MeV/CM2/sec MeV/cm2 /sec mR/hr mR/hr No Buildup With Buildup No Buil-du With Buildup 0.015 5.687e+12 0.000e+00 5.719e-24 0.OOOe+00 4.905e-25 0.02 2.540e+14 0.000e+00 4.019e-22 0.OOOe+00 1.392e-23 0.03 2.955e+18 6.886e-310 1.034e-17 6.824e-312 1.025e-19 0.04 8.628e+14 2.075e-146 8.006e-21 9.179e-149 3.541e-23 0.05 2.803e+15 1.016e-85 8.501e-20 2.705e-88 2.264e-22 0.06 9.953e+14 2.530e-59 2.167e-19 5.026e-62 4.304e-22 0.08 2.026e+18 4.959e-34 1.049e-15 7.847e-37 1.660e-18 0.1 6.236e+15 4.567e-28 1.493e-17 6.987e-31 2.284e-20 0.15 4.165e+17 2.021e-18 7.377e-15 3.328e-21 1.215e-17 0.2 2.037e+18 1.835e-14 3.420e-11 3.239e-17 6.036e-14

Page  : 4 Attachment 6 to PSL-ENG-SENS-04-037, Rev. 0 DOS File: SL1MS02.MS5 Page 75 of 121 Run Date: March 10, 2003 Run Time: 4:23:18 PM Duration: 00:01:06 Energcy Activity Fluence Rate Fluence Rate Exposure Rate Exposure Rate M-eV photons/sec MeV/CM2/seg May/Cm2 La= mR/hr mR/hr No Buildup With Buildup No Bui ldup With Buildup 0.3 1.008e+17 3.356e-12 4.094e-09 6.367e-15 7.767e-12 0.4 3.702e+17 2.043e-09 1.397e-06 3.980e-12 2.722e-09 0.5 5.427e+17 1.235e-07 5.128e-05 2.423e-10 1.006e-07 0.6 3.358e+17 1.381e-06 3.747e-04 2.696e-09 7.313e-07 0.8 5.990e+17 1.896e-04 2.686e-02 3.606e-07 5.108e-05 1.0 2.565e+17 1.948e-03 1.679e-01 3.590e-06 3.095e-04 1.5 3.591e+17 5.347e-01 2.057e+01 8.996e-04 3.461e-02 2.0 8.024e+17 3.034e+01 7.273e+02 4.691e-02 1.125e+00 3.0 8.143e+16 1.381e+02 1.858e+03 1.873e-01 2.520e+00 4.0 1.llle+14 1.679e+00 1.601e+01 2.078e-03 1.981e-02 5.0 6.104e+14 3.819e+01 2.849e+02 4.378e-02 3.266e-01 TOTALS: 1.089e+19 2.088e+02 2.907e+03 2.810e-01 4.026e+00

Attachment 6 to PSL-ENG-SENS-04-037. Rev. 0 MicroShield v5.05 (5.05-0000) Page 76 of 121 Grove Engineering Page 1 File Ref:

DOS File: SL1MS03.MS5 Date:

Run Date: March 10, 2003 By:

Run Time: 4:25:43 PM Checked:

Duration: 00:01:07 Case

Title:

sllms03

Description:

St. Lucie Unit 1 LOCA (Containment to CR) - 8 h Geometry: 7 - Cylinder Volume - Side Shields Source Dimensions Height 5.3e+3 cm 172 ft 5.0 in Radius 2.le+3 cm 70 ft Dose Points Y. 7

1. 1 3.26e+03 cm 1402.08 cm 0 cm 106 ft 10.7 in 46 ft 0.0 in Shields Source 7.52e+10 cm3 Water 0.000598 Shield 1 5.08 cm Iron 7.86 Shield 2 116.84 cm Air 0.00122 Shield 3 91.44 cmConcrete2.35 Transition 545.287 cm Air 0.00122 Shield 5 60.96 cmConcrete2.35 Air Gap Air 0.00122 Source Input Grouping Method : Standard Indices Number of Groups : 25 Lower Energy Cutoff : 0.015 Photons < 0.015 : Excluded Library : Grove Nilcq3.de. qucgi.s, / Cr3.

gc lq/.cm,3.

Am-241 1.0743e-002 3.9749e+008 1.4294e-007 5.2887e-003 Am-242 3.6673e+000 1.3569e+011 4.8794e-005 1.8054e+000 Ba-137m 9.1033e+003 3.3682e+014 1.2112e-001 4.4815e+003 Ba-139 1.1649e+002 4.3100e+012 1.5499e-003 5.7346e+001 Ba-140 6.1520e+003 2.2762e+014 8.1854e-002 3.0286e+003 Ba-141 7.2733e-005 2.6911e+006 9.6773e-010 3.5806e-005 Br-82 8.5661e+002 3.1695e+013 1.1397e-002 4.2170e+002 Br-83 1.3473e+003 4.9849e+013 1.7926e-002 6.6326e+002 Br-84 6.6951e-001 2.4772e+010 8.9080e-006 3.2959e-001 Ce-141 1.4976e+002 5.5410e+012 1.9925e-003 7.3724e+001 Ce-143 1.1595e+002 4.2900e+012 1.5427e-003 5.7079e+001 Ce-144 1.2614e+002 4.6672e+012 1.6783e-003 6.2098e+001 Cm-242 3.4851e+000 1.2895e+011 4.6370e-005 1.7157e+000 Cm-244 5.2436e-001 1.9401e+010 6.9767e-006 2.5814e-001 Cs-134 1.6663e+004 6.1652e+014 2.2170e-001 8.2029e+003 Cs-134m 5.5249e+002 2.0442e+013 7.3510e-003 2.7199e+002 Cs-136 4.4101e+003 1.6317e+014 5.8677e-002 2.1711e+003 Cs-137 8.2121e+003 3.0385e+014 1.0926e-001 4.0428e+003 Cs-138 1.2964e+001 4.7968e+011 1.7249e-004 6.3822e+000 Eu-154 7.9970e-001 2.9589e+010 1.0640e-005 3.9369e-001 Eu-155 5.4173e-001 2.0044e+010 7.2079e-006 2.6669e-001

Page 2 Attachment 6 to PSL-ENG-SENS-04-037. Rev. 0 DOS File: SLIMS03.MS5 Page 77 of 121 Run Date: March 10, 2003 Run Time: 4:25:43 PM Duration: 00:01:07 Nucilde curies becauergls Ba/cm3 Eu-156 1.3964e+001 5.1665e+011 1.8579e-004 6.8742e+000 I-130 4.7061e+003 1.7412e+014 6.2615e-002 2.3168e+003 I-131 1.1932e+005 4.4148e+015 1.5876e+000 5.8740e+004 I-132 3.9196e+004 1.4503e+015 5.2151e-001 1.9296e+004 I-133 1.8439e+005 6.8226e+015 2.4534e+000 9. 0776e+004 1-134 8.8137e+002 3.2611e+013 1.1727e-002 4.3389e+002 I-135 9.6126e+004 3.5567e+015 1.2790e+000 4.7322e+004 Kr-83m 1.2715e+006 4.7044e+016 1.6917e+001 6.2593e+005 Kr-85 1.1526e+006 4.2646e+016 1.5336e+001 5.6742e+005 Kr-85m 5.1766e+006 1.9154e+017 6.8876e+001 2.5484e+006 Kr-87 4.3226e+005 1.5993e+016 5.7513e+000 2.1280e+005 Kr-88 6.7470e+006 2.4964e+017 8.9770e+001 3.3215e+006 La-140 7.2211e+002 2.6718e+013 9.6078e-003 3.5549e+002 La-141 2.3677e+001 8.7605e+011 3.1503e-004 1.1656e+001 La-142 1.5642e+000 5.7876e+010 2.0812e-005 7.7005e-001 Mo-99 8.0410e+002 2.9752e+013 1.0699e-002 3.9585e+002 Nb-95 6.0749e+001 2.2477e+012 8.0828e-004 2.9906e+001 Nb-95m 4.2802e-001 1.5837e+010 5.6949e-006 2.1071e-001 Nb-97 3.0512e+000 1.1289e+011 4.0597e-005 1.5021e+000 Nd-147 2.3450e+001 8.6764e+011 3.1200e-004 1.1544e+001 Np-238 6.0265e+001 2.2298e+012 8.0184e-004 2.9668e+001 Np-239 2.2121e+003 8.1847e+013 2.9432e-002 1.0890e+003 Pd-109 1.5532e+002 5.7467e+012 2.0665e-003 7.6461e+001 Pm-147 5.9154e+000 2.1887e+011 7.8705e-005 2.9121e+000 Pm-148 1.0592e+001 3.9192e+011 1.4093e-004 5.2146e+000 Pm-148m 1.4079e+000 5.2092e+010 1.8732e-005 6.9309e-001 Pm-149 2.1200e+001 7.8440e+011 2.8207e-004 1.0437e+001 Pm-151 6.9067e+000 2.5555e+011 9.1895e-005 3.4001e+000 Pr-143 5.5157e+001 2.0408e+012 7.3387e-004 2.7153e+001 Pr-144 1.2920e+002 4.7804e+012 1.7190e-003 6.3605e+001 Pr-144m 2.3774e+000 8.7964e+010 3.1632e-005 1.1704e+000 Pu-238 6.8210e-001 2.5238e+010 9.0755e-006 3.3579e-001 Pu-239 4.7719e-002 1.7656e+009 6.3490e-007 2.3491e-002 Pu-240 8.0375e-002 2.9739e+009 1.0694e-006 3.9568e-002 Pu-241 2.0242e+001 7.4895e+011 2.6932e-004 9.9649e+000 Pu-243 2.4575e+001 9.0927e+011 3.2697e-004 1.2098e+001 Rb-86 1.4833e+002 5.4881e+012 1.9735e-003 7.3021e+001 Rb-88 6.2925e+006 2.3282e+017 8.3724e+001 3.0978e+006 Rb-89 1.2314e-005 4.5561e+005 1.6384e-010 6.0620e-006 Rh-103m 8.2104e+002 3.0378e+013 1.0924e-002 4.0419e+002 Rh-105 5.4633e+002 2.0214e+013 7.2691e-003 2.6896e+002 Rh-106 8.3928e+002 3.1053e+013 1.1167e-002 4.1317e+002 Ru-103 8.1685e+002 3.0223e+013 1.0868e-002 4.0213e+002 Ru-105 1.8033e+002 6.6720e+012 2.3993e-003 8.8773e+001 Ru-106 4.0809e+002 1.5099e+013 5.4297e-003 2.0090e+002 Sb-124 2.6751e+001 9.8977e+011 3.5592e-004 1.3169e+001 Sb-125 2.2367e+002 8.2758e+012 2.9760e-003 1.lOlle+002 Sb-126 1.5201e+001 5.6245e+011 2.0226e-004 7.4835e+000 Sb-127 1.1266e+003 4.1684e+013 1.4990e-002 5.5462e+002 Sb-129 9.2364e+002 3.4175e+013 1.2289e-002 4.5470e+002 Sm-153 2.2492e+001 8.3220e+011 2.9926e-004 1.1073e+001 Sr-89 3.2132e+003 1.1889e+014 4.2752e-002 1.5818e+003 Sr-90 4.6077e+002 1.7049e+013 6.1307e-003 2.2684e+002

Page  : 3 Attachment 6 to PSL-ENG-SENS-04-037. Rev. 0 DOS File: SL1MSO3.MS5 Page 78 of 121 Run Date: March 10, 2003 Run Time: 4:25:43 PM Duration: 00:01:07 Nuclide becauerala uCi /cm3 Ba/cm3 Sr-91 2.2515e+003 8.3304e+013 2.9956e-002 1.1084e+003 Sr-92 5.7158e+002 2.1148e+013 7.6050e-003 2.8139e+002 Tc-99m 7.4480e+002 2.7558e+013 9.9097e-003 3.6666e+002 Tc-101 5.3711e-008 1.9873e+003 7.1464e-013 2.6442e-008 Te-125m 4.9146e+001 1.8184e+012 6.5390e-004 2.4194e+001 Te-127 1.1543e+003 4.2708e+013 1.5358e-002 5.6823e+002 Te-127m 1.6119e+002 5.9639e+012 2.1446e-003 7.9351e+001 Te-129 1.2993e+003 4.8076e+013 1.7288e-002 6.3966e+002 Te-129m 4.8881e+002 1.8086e+013 6.5037e-003 2.4064e+002 Te-131 2.7266e+002 1.0088e+013 3.6277e-003 1.3423e+002 Te-131m 1.1911e+003 4.4071e+013 1.5848e-002 5.8638e+002 Te-132 1.2444e+004 4.6041e+014 1.6556e-001 6.1259e+003 Te-133 2.8020e+000 1.0367e+011 3.7281e-005 1.3794e+000 Te-133m 1.6163e+001 5.9803e+011 2.1505e-004 7.9570e+000 Te-134 5.1662e+000 1.9115e+011 6.8737e-005 2.5433e+000 Xe-131m 8.5001e+005 3.1450e+016 1.1310e+001 4.1845e+005 Xe-133 1.4578e+008 5.3937e+018 1.9396e+003 7.1764e+007 Xe-133m 4.4785e+006 1.6570e+017 5.9587e+001 2.2047e+006 Xe-13 5 4.4550e+007 1.6484e+018 5.9275e+002 2.1932e+007 Xe-135m 3.9776e+006 1.4717e+017 5.2923e+001 1.9582e+006 Xe-138 7.6113e-003 2.8162e+008 1.0127e-007 3.7470e-003 Y-90 3.6166e+001 1.3381e+012 4.8120e-004 1.7804e+001 Y-91 5.0660e+001 1.8744e+012 6.7404e-004 2.4940e+001 Y-91m 1.4281e+003 5.2838e+013 1.9000e-002 7.0302e+002 Y-92 9.1743e+002 3.3945e+013 1.2207e-002 4.5164e+002 Y-93 3.0082e+001 1.1130e+012 4.0025e-004 1.4809e+001 Zr-95 5.9846e+001 2.2143e+012 7.9626e-004 2.9462e+001 Zr-97 4.3293e+001 1.6018e+012 5.7602e-004 2.1313e+001 Buildup The material reference is  : Shield 3 Integration Parameters Radial 20 Circumferential 20 Y Direction (axial) 40 Results Energy Activity Fluence Rate Fluence Rate ExDosure Rate Exoosure Rate Rey photons/sec MeV/ CM2 L-Z= MeV/CM2/sec mR/hr mg/hr No Buildup With Buildup No Build= With Buildu=

0.015 2.486e+11 O.OOOe+00 2.499e-25 0.OOOe+00 2.144e-26 0.02 5.667e+12 0.OOOe+00 8.966e-24 O.OOOe+00 3.106e-25 0.03 2.807e+18 6.542e-310 9.822e-18 6.483e-312 9.734e-20 0.04 1.767e+13 4.250e-148 1.640e-22 1.880e-150 7.251e-25 0.05 6.070e+13 2.200e-87 1.841e-21 5.859e-90 4.905e-24 0.06 2.243e+13 5.702e-61 4.882e-21 1.132e-63 9.698e-24 0.08 1.980e+18 4.846e-34 1.025e-15 7.669e-37 1. 623e-18 0.1 5.743e+14 4.206e-29 1.375e-18 6.435e-32 2.104e-21 0.15 1.580e+17 7.664e-19 2.798e-15 1.262e-21 4.607e-18 0.2 1.569e+18 1.414e-14 2.634e-11 2.495e-17 4.650e-14

Page  : 4 Attachment 6 to PSL-ENG-SENS.04-037. Rev. 0 DOS File: SLIMS03.MS5 Page 79 of 121 Run Date: March 10, 2003 Run Time: 4:25:43 PM Duration: 00:01:07 Eneroy Activitv Fluence Rate Fluence Rate Ex2osure Rate Exposure Rate MeV photons/sec MeV/cm2 se= MeV/CM2/sec mR/hr mR/hr No Buildup With Buildup No Du ildu With Buildu 0.3 2.807e+16 9.347e-13 1.140e-09 1.773e-15 2.163e-12 0.4 2.891e+16 1.595e-10 1.091e-07 3.109e-13 2.126e-10 0.5 1.282e+17 2.917e-08 1.211e-05 5.725e-11 2.378e-08 0.6 5.578e+16 2.294e-07 6.223e-05 4.478e-10 1.215e-07 0.8 7.349e+16 2.326e-05 3.295e-03 4.424e-08 6.266e-06 1.0 2.223e+16 1.688e-04 1.455e-02 3.111e-07 2.682e-05 1.5 4.943e+16 7.360e-02 2.832e+00 1.238e-04 4.764e-03 2.0 2.043e+17 7.725e+00 1.852e+02 1.195e-02 2.864e-01 3.0 1.077e+16 1.825e+01 2.456e+02 2.476e-02 3.332e-01 4.0 3.292e+09 4.978e-05 4.747e-04 6.159e-08 5.873e-07 5.0 3.338e+14 2.089e+01 1.558e+02 2.394e-02 1.786e-01 TOTALS: 7.116e+18 4.694e+01 5.894e+02 6.078e-02 8.030e-01

roShield V5.05 (5.050000) Attachment 6 to PSL-ENC-SENS-04-037. Rev. 0 Hicr~hild 5.05(5.5-000)Page 80 of 121 Grove Engineering Page  : 1 File Ref:

DOS File: SL1MS04.MS5 Date:

Run Date: March 10, 2003 By:

Run Time: 4:34:56 PM Checked:

Duration: 00:01:07 Case

Title:

sllmsO4

Description:

St. Lucie Unit 1 LOCA (Containment to CR) - 24 h Geometry: 7 - Cylinder Volume - Side Shields Source Dimensions Height 5.3e+3 cm 172 ft 5.0 in Radius 2.le+3 cm 70 ft Dose Points X Y. Z

1. 1 3.26e+03 cm 1402.08 cm 0 cm 106 ft 10.7 in 46 ft 0.0 in Shields Shield Nanet DIAMnqsor% K4teQiq3, Pensitt Source 7.52e+10 cm3 Water- 0.000598 Shield 1 5.08 cm Iron 7.86 Shield 2 116.84 cm Air 0.00122 Shield 3 91.44 cmConcrete2.35 Transition 545.287 cm Air 0.00122 Shield 5 60.96 cmConcrete2.35 Air Gap Air 0.00122 Source Input Grouping Method : Standard Indices Number of Groups : 25 Lower Energy Cutoff : 0.015 Photons < 0.015 : Excluded Library : Grove

> qvie~s hqqre.\, uq/.43. ]q/.C*n 3 .

Am-241 5.2091e-006 1.9274e+005 6.9308e-011 2.5644e-006 Am-242 8.8498e-004 3.2744e'+007 1.1775e-008 4.3567e-004 Ba-137m 4.3897e+000 1.6242e+011 5.8405e-005 2.1610e+000 Ba-139 1.7993e-005 6.6573e+005 2.3940e-010 8.8577e-006 Ba-140 2.8610e+000 1.0586e+011 3.8066e-005 1.4084e+000 Br-82 2.9426e+002 1.0888e+013 3.9152e-003 1.4486e+002 Br-83 6.1176e+000 2.2635e+011 8.1395e-005 3.0116e+000 Ce-141 7.1250e-002 2.6363e+009 9.4800e-007 3.5076e-002 Ce-143 3.9953e-002 1.4782e+009 5.3158e-007 1.9668e-002 Ce-144 6.0727e-002. 2.2469e+009 8.0799e-007 2.9895e-002 Cm-242 1.6789e-003 6.2117e+007 2.2337e-008 8.2649e-004 Cm-244 2.5284e-004 9.3552e+006 3.3641e-009 1.2447e-004 Cs-134 8.0304e+000 2.9712e+011 1.0685e-004 3.9533e+000 Cs-134m 5.8173e-003 2.1524e+008 7.7401e-008 2.8638e-003 Cs-136 2.0530e+000 7.5960e+010 2.7315e-005 1.0107e+000 Cs-137 3.9599e+000 1.4652e+011 5.2688e-005 1.9494e+000 Eu-154 3.8559e-004 1.4267e+007 5.1303e-009 1.8982e-004 Eu-155 2.6118e-004 9.6635e+006 3.4750e-009 1.2857e-004 Eu-156 6.5318e-003 2.4168e+008 8.6907e-008 3.2156e-003 I-130 9.0231e+002 3.3385e+013 1.2005e-002 4.4420e+002 I-131 5.2989e+004 1.9606e+015 7.0503e-001 2.6086e+004

Page  : 2 Attachment 6 to PSL-ENG-SENS-04-037. Rev. 0 DOS File: SLlMS04.MS5 Page 81 of 121 Run Date: March 10, 2003 Run Time: 4:34:56 PM Duration: 00:01:07 Nuclide curies becauerels Bal/cm3 I-132 2.7109e+002 1.0030e+013 3.6069e-003 1.3345e+002 I-133 5.0882e+004 1.8826e+015 6.7700e-001 2.5049e+004 I-134 1.3408e-003 4.9611e+007 1.7840e-008 6.6009e-004 I-135 8.4443e+003 3.1244e+014 1.1235e-001 4.1571e+003 Kr-83m 1.3589e+004 5.0280e+014 1.8081e-001 6.6899e+003 Kr-85 1.1522e+006 4.2630e+016 1.5330e+001 5.6719e+005 Kr-85m 4.3531e+005 1.6107e+016 5.7919e+000 2.143Oe+005 Kr-87 7.0480e+001 2.6078e+012 9.3775e-004 3.4697e+001 Kr-88 1.3584e+005 5.0260e+015 1.8074e+000 6.6872e+004 La-140 9.6528e-001 3.5715e+010 1.2843e-005 4.7520e-001 La-141 6.7923e-004 2.5132e+007 9.0373e-009 3.3438e-004 La-142 5.6669e-007 2.0968e+004 7.5399e-012 2.7898e-007 Mo-99 3.2779e-001 1.2128e+010 4.3613e-006 1.6137e-001 Nb-95 2.9287e-002 1.0836e+009 3.8967e-007 1.4418e-002 Nb-95m 2.0579e-004 7.6142e+006 2.7381e-009 1.0131e-004 Nb-97 6.2159e-004 2.2999e+007 8.2704e-009 3.0600e-004 Nd-147 1.0842e-002 4.0115e+008 1.4425e-007 5.3374e-003 Np-238 2.3362e-002 8.6440e+008 3.1084e-007 1.1501e-002 Np-239 8.7667e-001 3.2437e+010 1.1664e-005 4.3158e-001 Pd-109 3.2791e-002 1.2133e+009 4.3629e-007 1.6143e-002 Pm-147 2.8565e-003 1..0569e+008 3.8006e-008 1.4062e-003 Pm-148 4.6893e-003 1.7351e+008 6.2393e-008 2.3085e-003 Pm-148m 6.7136e-004 2.4840e+007 8.9326e-009 3.3051e-004 Pm-149 8.2956e-003 3.0694e+008 1.1037e-007 4.0839e-003 Pm-151 2.2539e-003 8.3392e+007 2.9988e-008 1.1096e-003 Pr-143 2.7297e-002 1.OlOOe+009 3.6319e-007 1.3438e-002 Pr-144 6.2202e-002 2.3015e+009 8.2761e-007 3.0622e-002 Pr-144m 1.1446e-003 4.2351e+007 1.5229e-008 5.6348e-004 Pu-238 3.2932e-004 1.2185e+007 4.3817e-009 1.6212e-004 Pu-239 2.3062e-005 8.5329e+005 3.0684e-010 1.1353e-005 Pu-240 3.8759e-005 1.4341e+006 5.1570e-010 1.9081e-005 Pu-241 9.7604e-003 3.6113e+008 1.2986e-007 4.8050e-003 Pu-243 1.2644e-003 4.6783e+007 1.6823e-008 6.2245e-004 Rb-86 6.9778e-002 2.5818e+009 9.2841e-007 3.4351e-002 Rb-88 1.2669e+005 4.6874e+015 1.6856e+000 6.2367e+004 Rh-103m 3.9141e-001 1.4482e+010 5.2078e-006 1.9269e-001 Rh-105 2.0063e-00O 7.4232e+009 2.6694e-006 9.8767e-002 Rh-106 4.0422e-001 1.4956e+010 5.3782e-006 1.9899e-001 Ru-103 3.8930e-001 1.4404e+010 5.1797e-006 1.9165e-001 Ru-105 7.1533e-003 2.6467e+008 9.5176e-008 3.5215e-003 Ru-106 1.9655e-001 7.2722e+009 2.6151e-006 9.6758e-002 Sb-124 1.2801e-002 4.7364e+008 1.7032e-007 6.3019e-003 Sb-125 1.0781e-001 3.9889e+009 1.4344e-006 5.3074e-002 Sb-126 7.0623e-003 2.6131e+008 9.3965e-008 3.4767e-003 Sb-127 4.8183e-001 1.7828e+010 6.4108e-006 2.3720e-001 Sb-129 3.4185e-002 1.2648e+009 4.5483e-007 1.6829e-002 Sm-153 8.5534e-003 3.1648e+008 1.1380e-007 4.2108e-003 Sr-89 1.5354e+000 5.6809e+010 2.0429e-005 7.5586e-001 Sr-90 2.2219e-001 8.2210e+009 2.9563e-006 1.0938e-001 Sr-91 3.3785e-001 1.2500e+010 4.4951e-006 1.6632e-001 Sr-92 4.6029e-003 1.7031e+008 6.1242e-008 2.2660e-003 Tc-99m 3.1393e-001 1.1615e+010 4.1769e-006 1.5455e-001 Te-125m 2.3707e-002 8.7714e+008 3.1542e-007 1.1671e-002

Page  : 3 Attachment 6 to PSL-ENG-SENS-04-037, Rev. 0 DOS File: SLlMS04.MS5 Page 82 of 121 Run Date: March 10, 2003 Run Time: 4:34:56 PM

-Duration: 00:01:07 Nuclide curies beccruere-la uCi/cm3 Ba/cm3 Te-127 5.1258e-001 1.8965e+010 6.8200e-006 2.5234e-001 Te-127m 7.7782e-002 2.8779e+009 1.0349e-006 3.8291e-002 Te-129 1.8899e-001 6.9927e+009 2.5146e-006 9.3040e-002 Te-129m 2.3299e-001 8.6204e+009 3.0999e-006 1.1470e-001 Te-131 9.0843e-002 3.3612e+009 1.2087e-006 4.4721e-002 Te-131m 3.9687e-001 1.4684e+010 5.2805e-006 1.9538e-001 Te-132 5.2073e+000 1.9267e+011 6.9284e-005 2.5635e+000 Te-133 6.8376e-009 2.5299e+002 9.0976e-014 3.3661e-009 Te-133m 4.7355e-008 1.7521e+003 6.3006e-013 2.3312e-008 Xe-131m 8.2968e+005 3.0698e+016 1.1039e+001 4.0845e+005 Xe-133 1.3671e+008 5.0583e+018 1.8190e+003 6.7302e+007 Xe-133m 3.8208e+006 1.4137e+017 5.0837e+001 1.8810e+006 Xe-135 2.0181e+007 7.4671e+017 2.6852e+002 9.9352e+006 Xe-135m 7.4296e+005 2.7489e+016 9.8852e+000 3.6575e+005 Y-90 5.0021e-002 1.8508e+009 6.6554e-007 2.4625e-002 Y-91 2.9551e-002 1.0934e+009 3.9319e-007 1.4548e-002 Y-91m 2.1573e-001 7.9820e+009 2.8703e-006 1.0620e-001 Y-92 4.3535e-002 1.6108e+009 5.7925e-007 2.1432e-002 Y-93 4.8381e-003 1.7901e+008 6.4372e-008 2.3818e-003 Zr-95 2.8652e-002 1.0601e+009 3.8122e-007 1.4105e-002 Zr-97 1.0831e-002 4.0075e+008 1.4411e-007 5.3321e-003 Buildup The material reference is : Shield 3 Integration Parameters Radial 20 Circumferential 20 Y Direction (axial) 40 Results Enerory Activitv EluenceRate Fluence Rate Exosure Rate Exoosure Rate HM photons/sec MeV/cm 2 /sec MeV/Cm2/sec ME/hr mR/hr No Buildu With BuilduD No Buildup With Buildu=

0.015 3.998e+07 0.OOOe+00 4.020e-29 0.OOOe+00 3.448e-30 0.02 2.500e+09 0.OOOe+00 3.956e-27 0.OOOe+00 1.370e-28 0.03 2.565e+18 5.976e-310 8.973e-18 5.923e-312 8.893e-20 0.04 8.020e+09 1.929e-151 7.442e-26 8.532e-154 3.291e-28 0.05 2.540e+10 9.205e-91 7.705e-25 2.452e-93 2.052e-27 0.06 1.029e+10 2.616e-64 2.240e-24 5.195e-67 4.449e-27 0.08 1.856e+18 4.545e-34 9.616e-16 7.192e-37 1.522e-18 0.1 1.002e+13 7.340e-31 2.400e-20 1.123e-33 3.671e-23 0.15 1.509e+16 7.320e-20 2.672e-16 1.205e-22 4.400e-19 0.2 6.908e+17 6.225e-15 1.160e-11 1.099e-17 2.047e-14 0.3 2.416e+15 8.046e-14 9.815e-11 1.526e-16 1.862e-13 0.4 6.099e+15 3.366e-11 2.302e-08 6.558e-14 4.485e-11 0.5 2.422e+16 5.511e-09 2.289e-06 1.082e-11 4.492e-09 0.6 2.343e+16 9.636e-08 2.614e-05 1.881e-10 5.102e-08 0.8 1.642e+15 5.196e-07 7.360e-05 9.883e-10 1.400e-07 1.0 5.811e+14 4.412e-06 3.804e-04 8.133e-09 7.01le-07 1.5 1.155e+15 1.720e-03 6.618e-02 2.894e-06 1.114e-04

Page 4 Attachment 6 to PSL-ENG-SENS-04-037, Rev. 0 DOS File: SL1MS04.MS5 Page 83 of 121 Run Date: March 10, 2003 Run Time: 4:34:56 PM Duration: 00:01:07 Engray Activity Fluence Rate Fluence Rate ExDosure Rate Ex2osure Rate H2y photgns/k= MeV/CM2/sec MeV/CM2LaQQ mRLhr mR/hr No Bildur) With Buildup No -BuilJdup With Buildug 2.0 4.129e+15 1.561e-01 3.742e+00 2.414e-04 5.787e-03 3.0 1.721e+14 2.917e-01 3.925e+00 3.958e-04 5.325e-03 4.0 5.504e+02 8.323e-12 7.937e-11 1.030e-14 9.819e-14 5.0 6.721e+12 4.205e-01 3.137e+00 4.821e-04 3.596e-03 TOTALS: 5.191e+18 8.701e-01 1.087e+01 1.122e-03 1.482e-02

McroShield 5.05 (5.05-0000) Attachment 6 to PSL-ENG-SENS-04-037. Rev. 0 Micr~hild 5.05(5.5-000)Page 84 of 121 Grove Engineering

-Page  : 1 File Ref:

DOS File: SL1MS05.MS5 Date:

Run Date: March 10, 2003 By:

Run Time: 4:47:14 PM Checked:

Duration: 00:00:48 Case

Title:

slmsO5

Description:

St. Lucie Unit 1 LOCA (Containment to CR) - 96 h Geometry: 7 - Cylinder Volume - Side Shields Source Dimensions Height 5.3e+3 cm 172 ft 5.0 in Radius 2.le+3 cm 70 ft Dose Points Y. Z

1. 1 3.26e+03 cm 1402.08 cm 0 cm 106 ft 10.7 in 46 ft 0.0 in Shields

.9hjq3.cj Nae, DIrqrs:Lio 14ta~irje3 IRS,qity.

Source 7.52e+10 cm3 Water 0.000598 Shield 1 5.08 cm Iron 7.86 Shield 2 116.84 cm Air 0.00122 Shield 3 91.44 cmConcrete2.35 Transition 545.287 cm Air 0.00122 Shield 5 60.96 cmConcrete2.35 Air Gap Air 0.00122 Source Input Grouping Method : Standard Indices Number of Groups : 25 Lower Energy Cutoff : 0.015 Photons < 0.015 : Excluded Library : Grove 3

NilAcJe. c~qlie.s. ~qqqqzQjq ACi/.cqr .

Br-82 7.1479e+001 2.6447e+012 9.5104e-004 3.5189e+001 Br-83 5.2162e-009 1.9300e+002 6.9402e-014 2.5679e-009 Cs-137 3.9186e-015 1.4499e-004 5.2138e-020 1.9291e-015 1-130 1.5894e+001 5.8809e+011 2.1148e-004 7.8246e+000 1-131 4.0862e+004 1.5119e+015 5.4367e-001 2.0116e+004 1-132 1.0529e-007 3.8958e+003 1.4009e-012 5.1834e-008 1-133 4.6130e+003 1.7068e+014 6.1377e-002 2.2710e+003 1-135 4.4363e+000 1.6414e+0ll 5.9026e-005 2.1839e+000 Kr-83m 1.1960e-005 4.4251e+005 1.5913e-010 5.8877e-006 Kr-85 1.1507e+006 4.2576e+016 1.5310e+001 5.6649e+005 Kr-85m 6.3169e+000 2.3372e+01l 8.4047e-005 3.1097e+000 Kr-88 3.1693e-003 1.1726e+008 4.2168e-008 1.5602e-003 Rb-88 2.9559e-003 1.0937e+008 3.9329e-008 1.4552e-003 Xe-131m 7.4046e+005 2.7397e+016 9.8520e+000 3.6452e+005 Xe-133 9.5762e+007 3.5432e+018 1.2741e+003 4.7143e+007 Xe-133m 1.6287e+006 6.0260e+016 2.1670e+001 8.0178e+005 Xe-135 1.2684e+005 4.6930e+015 1.6876e+000 6.2441e+004 Xe-135m 3.9081e+002 1.4460e+013 5.1998e-003 1.9239e+002 Buildup The material reference is : Shield 3

Page  : 2 Attachment 6 to PSL-ENG-SENS-04-037, Rev. 0 DOS File: SL1MS05.MS5 Page 85 of 121 Run Date: March 10, 2003 Run Time: 4:47:14 PM Duration: 00:00:48 Integration Parameters Radial 20 Circumferential 20 Y Direction (axial) 40 Results Enerov Activity Fluence Rate Fluence Rate Exposure Rate ExDosure Rate MeV photons/sec MeV/CM2/sec MeV/CM2 Lae= mR/hr mR/hr No Buildup With Buildup No Buildup With Buildup 0.03 1.749e+18 4.075e-310 6.118e-18 4.039e-312 6.064e-20 0.08 1.300e+18 3.184e-34 6.736e-16 5.038e-37 1.066e-18 0.1 1.895e+10 1.388e-33 4.536e-23 2.123e-36 6.940e-26 0.15 5.507e+14 2.672e-21 9.753e-18 4.400e-24 1.606e-20 0.2 1.295e+16 1.167e-16 2.175e-13 2.060e-19 3.839e-16 0.3 9.982e+13 3.324e-15 4.055e-12 6.305e-18 7.691e-15 0.4 1.255e+15 6.927e-12 4.738e-09 1.350e-14 9.232e-12 0.5 3.540e+14 8.053e-11 3.345e-08 1.581e-13 6.565e-11 0.6 2.652e+14 1.091e-09 2.958e-07 2.129e-12 5.774e-10 0.8 4.395e+13 1.391e-08 1.970e-06 2.646e-11 3.748e-09 1.0 5.015e+12 3.807e-08 3.282e-06 7.018e-11 6.050e-09 1.5 5.499e+12 8.189e-06 3.150e-04 1.378e-08 5.300e-07 2.0 2.115e+10 7.997e-07 1.917e-05 1.237e-09 2.965e-08 3.0 4.006e+06 6.792e-09 9.138e-08 9.215e-12 1.240e-10 5.0 1.568e+05 9.811e-09 7.319e-08 1.125e-11 8.390e-11 TOTALS: 3.065e+18 9.058e-06 3.400e-04 1. 513e-08 5.703e-07

5.05 icroShield Micr~hild (5.050000) 5.05(5.5-000)Page of 1210 Attachment 6 to PSL-ENG-SENS-04-037.86 Rev.

Grove Engineering Page  : 1 File Ref:

DOS File: SLlMS06.MS5 Date:

Run Date: March 10, 2003 By:

Run Time: 4:52:14 PM Checked:

Duration: 00:00:44 Case

Title:

slmsO6

Description:

St. Lucie Unit 1 LOCA (Containment to CR) - 720 h Geometry: 7 - Cylinder Volume - Side Shields Source Dimensions Height 5.3e+3 cm 172 ft 5.0 in Radius 2.le+3 cm 70 ft Dose Points X Y. z

1. 1 3.26e+03 cm 1402.08 cm 0 cm 106 ft 10.7 in 46 ft 0.0 in Shields

$1hjqjcj Nne. pIm~urEnsiorn 11teirtl. ens:Lt-Y.

Source 7.52e+10 cm3 Water 0.000598 Shield 1 5.08 cm Iron 7.86 Shield 2 116.84 cm Air 0.00122 Shield 3 91.44 cmConcrete2.35 Transition 545.287 cm Air 0.00122 Shield 5 60.96 cmConcrete2.35 Air Gap Air 0.00122 Source Input Grouping Method : Standard Indices Number of Groups : 25 Lower Energy Cutoff : 0.015 Photons < 0.015 : Excluded Library : Grove N4q]1 Qe cmir.Jes. bqqqqxs, AQic,3 gq/.cqn'3.

Br-82 3.3895e-004 1.2541e+007 4.5098e-009 1.6686e-004 1-131 4.3164e+003 1.5971e+014 5.7430e-002 2.1249e+003 I-133 4.2695e-006 1.5797e+005 5.6807e-011 2.1019e-006 Kr-85 1.1383e+006 4.2117e+016 1.5145e+001 5.6037e+005 Xe-131m 2.1924e+005 8.1119e+015 2.9170e+000 1.0793e+005 Xe-133 3.1166e+006 1.1531e+017 4.1467e+001 1.5343e+006 Xe-133m 4.4087e+002 1.6312e+013 5.8659e-003 2.1704e+002 Buildup The material reference is : Shield 3 Integration Parameters Radial 20 Circumferential 20 Y Direction (axial) 40 Results glqr~gY AqtivitY, 1Fli~q~q Rqte.

14eV PbQtQrm4/,se~c. KQ/,czro/,4:eu rQR /.hr. MR P/.hr.

NQ Aqi\4AP. . 0wit90IeW-1 .

0.03 5.974e+16 1.392e-311 2.090e-19 1.3 80e-313 2. 072e-21

Page  : 2 Attachment 6 to PSL-ENG-SENS-04-037, Rev. 0 DOS File: SL1MS06.MS5 Page 87 of 121 Run Date: March 10, 2003 Run Time: 4:52:14 PM Duration: 00:00:44 Energy Act iitv Fluence Rate Fluence Rate Exposure Rate Ex2osure Rate MeV photons/sec MeV/CM2/sec MeV/CM2/sec mg/hr mR/hr No Buil up With Buildu= No Build= With Buildup 0.08 4.232e+16 1.036e-35 2.192e-17 1.640e-38 3.469e-20 0.1 8.985e+04 6.580e-39 2.151e-28 1.007e-41 3.291e-31 0.15 1.590e+14 7.714e-22 2.816e-18 1.270e-24 4.637e-21 0.2 8.418e÷13 7.586e-19 1.414e-15 1.339e-21 2.495e-18 0.3 1.043e+13 3.474e-16 4.238e-13 6.590e-19 8.040e-16 0.4 1.296e+14 7.153e-13 4.892e-10 1.394e-15 9.532e-13 0.5 1.834e+14 4.171e-11 1.732e-08 8.188e-14 3.401e-11 0.6 1.195e+13 4.914e-11 1.333e-08 9.591e-14 2.601e-11 0.8 2.879e+12 9.111e-10 1.291e-07 1.733e-12 2.455e-10 1.0 3.714e+06 2.820e-14 2.431e-12 5.198e-17 4.481e-15 1.5 5.564e+06 8.286e-12 3.188e-10 1.394e-14 5.363e-13 2.0 1.421e+04 5.372e-13 1.288e-11 8.307e-16 1.992e-14 TOTALS: 1.026e+17 1.01le-09 1.605e-07 1.927e-12 3.070e-10

Attachment 6 to PSL-ENG-SENS-04-037, Rev. 0 MicroShield v5.05 (5.05-0000) Page88of121 Grove Engineering Page  : 1 File Ref:

DOS File: SLlFILOl.MS5 Date:

Run Date: March 11, 2003 By:

Run Time: 10:41:28 AM Checked:

Duration: 00:00:02 Case

Title:

811filOl

Description:

St. Lucie Unit 1 LOCA (Filter to Control Room) - 30 min Geometry: 4 - Rectangular Area - Vertical Source Dimensions Width 76.2 cm 2 ft 6.0 in Height 121.92 cm 4 ft Dose Points z Y z

1. 1 816.5592 cm 49.3776 cm 38.1 cm 26 ft 9.5 in 1 ft 7.4 in 1 ft 3.0 in Shields Shield Name Dimension Material Density Shield 1 16.12 ft Air 0.00122 Shield 2 .67 ft Concrete 2.35 Air Gap Air 0.00122 Source Input Grouping Method : Standard Indices Number of Groups : 25 Lower Energy Cutoff : 0.015 Photons < 0.015 : Excluded Library : Grove Nuclide curies becauerels UCi/Cm2 ]3a/CM2 Ba-137m 6.5845e-004 2.4363e+007 7.0875e-002 2.6224e+003 Br-82 2.8942e-005 1.0709e+006 3.1153e-003 1.1527e+002 Br-83 3.4508e-004 1.2768e+007 3.7144e-002 1.3743e+003 Br-84 3.5135e-004 1.3000e+007 3.7819e-002 1.3993e+003 Cs-134 1.2365e-003 4.5750e+007 1.3309e-001 4.9245e+003 Cs-134m 2.4565e-004 9.0891e+006 2.6442e-002 9.7835e+002 Cs-136 3.3262e-004 1.2307e+007 3.5803e-002 1.3247e+003 Cs-137 6.0924e-004 2.2542e+007 6.5578e-002 2.4264e+003 Cs-138 8.3437e-003 3.0872e+008 8.9811e-001 3.3230e+004 I-130 2.0896e-004 7.7315e+006 2.2492e-002 8.3221e+002 I-131 3.5673e-003 1.3199e+008 3.8398e-001 1.4207e+004 1-132 4.5544e-003 1.6851e+008 4.9023e-001 1.8139e+004 I-133 6.8139e-003 2.5212e+008 7.3345e-001 2.7138e+004 I-134 5.4386e-003 2.0123e+008 5.8540e-001 2.1660e+004 I-135 6.1513e-003 2.2760e+008 6.6212e-001 2.4498e+004 Rb-86 1.1132e-005 4.1189e+005 1.1982e-003 4.4335e+001 Rb-88 7.1448e-003 2.6436e+008 7.6906e-001 2.8455e+004 Rb-89 7.2927e-004 2.6983e+007 7.8498e-002 2.9044e+003 Sr-89 2.7766e-007 1.0273e+004 2.9887e-005 1.1058e+000 Buildup The material reference is  : Shield 2 Integration Parameters Z Direction 20 Y Direction 20

Page  : 2 Attachment 6 to PSL-ENG-SENS-04-037, Rev. 0 DOS File: SL1FILOl.MS5 Page 89 of 121 Run Date: March 11, 2003 Run Time: 10:41:28 AM Duration: 00:00:02 Results Enerovy Activity Fluence Rate Fluence Rate Exposure Rate Exposure Rate MeV photons/sec MeV/CM2/sec MeV/CM2/Zec mR/hr mR/hr No Buildup With Buildup No Build=p With Buildup 0.03 2.117e+07 8.078e-26 1.601e-25 8.006e-28 1.587e-27 0.04 1.412e+06 7.399e-15 2.681e-14 3.272e-17 1.186e-16 0.06 1.534e+06 1.709e-08 1.596e-07 3.394e-11 3.171e-10 0.08 4.229e+06 2.293e-06 3.515e-05 3.629e-09 5.562e-08 0.1 4.584e+05 1.321e-06 2.667e-05 2.021e-09 4.080e-08 0.15 1.741e+07 3.312e-04 7.749e-03 5.454e-07 1.276e-05 0.2 2.055e+07 1.074e-03 2.315e-02 1.895e-06 4.086e-05 0.3 3.275e+07 6.105e-03 9.882e-02 1.158e-05 1.875e-04 0.4 1.694e+08 7.388e-02 9.095e-01 1.439e-04 1.772e-03 0.5 4.461e+08 3.678e-01 3.612e+00 7.220e-04 7.089e-03 0.6 3.880e+08 5.300e-01 4.312e+00 1.035e-03 8.416e-03 0.8 6.782e+08 2.002e+00 1.220e+01 3.808e-03 2.320e-02 1.0 3.721e+08 1.952e+00 9.594e+00 3.597e-03 1.768e-02 1.5 4.405e+08 6.183e+00 2.140e+01 1.040e-02 3.600e-02 2.0 1.627e+08 4.324e+00 1.222e+01 6.686e-03 1.890e-02 3.0 3.783e+07 2.262e+00 5.044e+00 3.069e-03 6.843e-03 4.0 1.240e+06 1.242e-01 2.403e-01 1.536e-04 2.973e-04 5.0 3.790e+05 5.482e-02 9.575e-02 6.284e-05 1.098e-04 TOTALS: 2.796e+09 1.788e+01 6.976e+01 2.969e-02 1. 206e-01

Attachment 6 to PSL-ENG-SENS-04-037. Rev. 0 MicroShield v5.05 (5.05-0000) Page 90 of 121 Grove Engineering Page  : 1 File Ref:

DOS File: SL1FIL02.MS5 Date:

Run Date: March 11, 2003 By:

Run Time: 10:42:28 AM Checked: _

Duration: 00:00:02 Case

Title:

sllfilO2

Description:

St. Lucie Unit 1 LOCA (Filter to Control Room) - 2 hr Geometry: 4 - Rectangular Area - Vertical Source Dimensions Width 76.2 cm 2 ft 6.0 in Height 121.92 cm 4 ft Dose Points

1. 1 816.5592 cm 49.3776 cm 38.1 cm 26 ft 9.5 in 1 ft 7.4 in 1 ft 3.0 in Shields Shield Name Dimension Material Density Shield 2 491.338 cm Air 0.00122 Shield 2 20.422 cm Concrete 2.35 Air Gap Air 0.00122 Source Input Grouping Method : Standard Indices Number of Groups : 25 Lower Energy Cutoff : 0.015 Photons < 0.015 : Excluded Library : Grove Nuclide curies becquerels UCi/CM2 Bg/CM2 Am-241 1.1024e-008 4.0789e+002 1.1866e-006 4.3905e-002 Am-242 4.8884e-006 1.8087e+005 5.2618e-004 1.9469e+001 Ba-137m 1.2595e-002 4.6600e+008 1.3557e+000 5.0160e+004 Ba-139 2.4477e-003 9.0566e+007 2.6347e-001 9.7484e+003 Ba-140 6.4124e-003 2.3726e+008 6.9023e-001 2.5538e+004 Ba-141 6.3891e-005 2.3640e+006 6.8772e-003 2.5446e+002 Br-82 6.7262e-004 2.4887e+007 7.2400e-002 2.6788e+003 Br-83 5.3580e-003 1.9824e+008 5.7672e-001 2.1339e+004 Br-84 1.1954e-003 4.4229e+007 1.2867e-001 4.7607e+003 Ce-141 1.5458e-004 5.7193e+006 1.6638e-002 6.1562e+002 Ce-143 1.3520e-004 5.0022e+006 1.4552e-002 5.3843e+002 Ce-144 1.2994e-004 4.8080e+006 1.3987e-002 5.1752e+002 Cm-242 3.5835e-006 1.3259e+005 3.8572e-004 1.4272e+001 Cm-244 5.3916e-007 1.9949e+004 5.8035e-005 2.1473e+000 Co-58 1.8802e-007 6.9567e+003 2.0238e-005 7.4882e-001 Co-60 2.0959e-008 7.7548e+002 2.2560e-006 8.3472e-002 Cs-134 2.3069e-002 8.5355e+008 2.4831e+000 9.1875e+004 Cs-134m 3.2081e-003 1.1870e+008 3.4532e-001 1.2777e+004 Cs-136 6.1854e-003 2.2886e+008 6.6579e-001 2.4634e+004 Cs-137 1.1378e-002 4.2098e+008 1.2247e+000 4.5314e+004 Cs-138 5.8317e-002 2.1577e+009 6.2772e+000 2.3226e+005 Eu-154 8.2231e-007 3.0425e+004 8.8512e-005 3.2750e+000 Eu-155 5.5707e-007 2.0612e+004 5.9963e-005 2.2186e+000 Eu-156 1.4522e-005 5.3731e+005 1.5631e-003 5.7836e+001 I-130 4.6039e-003 1.7034e+008 4.9556e-001 1.8336e+004

Page 2 Attachment 6 to PSL-ENG-SENS-04-037, Rev. 0 DOS File: SL1FIL02.MS5 Page 91 of 121 Run Date: March 11, 2003 Run Time: 10:42:28 AM Duration: 00:00:02 Nucl-ide curies becauerg1a Ba/CM2 I-131 8.5128e-002 3.1497e+009 9.1631e+000 3.3904e+005 I-132 8.8996e-002 3.2929e+009 9.5795e+000 3.5444e+005 I-133 1.5670e-001 5.7977e+009 1.6867e+001 6.2406e+005 I-134 5.4850e-002 2.0294e+009 5.9040e+000 2.1845e+005 I-135 1.2603e-001 4.6631e+009 1.3566e+001 5.0193e+005 La-140 1.7983e-004 6.6538e+006 1.9357e-002 7.1621e+002 La-141 9.7800e-005 3.6186e+006 1.0527e-002 3.8950e+002 La-142 2.3876e-005 8.8340e+005 2.5699e-003 9.5088e+001 Mo-99 9.6086e-004 3.5552e+007 1.0343e-001 3.8268e+003 Nb-95 6.2466e-005 2.3113e+006 6.7238e-003 2.4878e+002 Nb-95m 4.4052e-007 1.6299e+004 4.7417e-005 1.7544e+000 Nb-97 2.1824e-005 8.0748e+005 2.3491e-003 8.6916e+001 Nd-147 2.4495e-005 9.0630e+005 2.6366e-003 9.7554e+001 Np-238 6.7251e-005 2.4883e+006 7.2389e-003 2.6784e+002 Np-239 2.4482e-003 9.0582e+007 2.6352e-001 9.7502e+003 Pd-109 2.1768e-004 8.0542e+006 2.3431e-002 8.6695e+002 Pm-147 6.0789e-006 2.2492e+005 6.5433e-004 2.4210e+001 Pm-148 1.1246e-005 4.1610e+005 1.2105e-003 4.4789e+001 Pm-148m 1.4537e-006 5.3787e+004 1.5648e-004 5.7896e+000 Pm-149 2.3575e-005 8.7228e+005 2.5376e-003 9.3892e+001 Pim-151 8.2215e-006 3.0420e+005 8.8496e-004 3.2743e+001 Pr-143 5.6123e-005 2.0766e+006 6.0410e-003 2.2352e+002 Pr-144 1.2399e-004 4.5878e+006 1.3347e-002 4.9382e+002 Pr-144m 2.4219e-006 8.9611e+004 2.6069e-004 9.6457e+000 Pu-238 7.0098e-007 2.5936e+004 7.5453e-005 2.7918e+000 Pu-239 4.9018e-008 1.8137e+003 5.2762e-006 1.9522e-001 Pu-240 8.2642e-008 3.0578e+003 8.8955e-006 3.2913e-001 Pu-241 2.0814e-005 7.7011e+005 2.2404e-003 8.2894e+001 Pu-243 5.8481e-005 2.1638e+006 6.2948e-003 2.3291e+002 Rb-86 2.0718e-004 7.6658e+006 2.2301e-002 8.2514e+002 Rb-88 6.1554e-001 2.2775e+010 6.6256e+001 2.4515e+006 Rb-89 2.2971e-004 8.4992e+006 2.4725e-002 9.1484e+002 Rh-103m 8.2815e-004 3.0641e+007 8.9141e-002 3.2982e+003 Rh-105 5.9387e-004 2.1973e+007 6.3924e-002 2.3652e+003 Rh-106 8.6336e-004 3.1944e+007 9.2932e-002 3.4385e+003 Ru-103 8.4378e-004 3.1220e+007 9.0823e-002 3.3605e+003 Ru-105 4.7308e-004 1.7504e+007 5.0922e-002 1.8841e+003 Ru-106 4.1981e-004 1.5533e+007 4.5188e-002 1.6720e+003 Sb-124 2.7585e-005 1.0206e+006 2.9692e-003 1.0986e+002 Sb-125 2.3002e-004 8.5107e+006 2.4759e-002 9.1609e+002 Sb-126 1.5850e-005 5.8644e+005 1.7060e-003 6.3124e+001 Sb-127 1.2117e-003 4.4834e+007 1.3043e-001 4.8259e+003 Sb-129 2.4870e-003 9.2020e+007 2.6770e-001 9.9050e+003 Sm-153 2.5280e-005 9.3535e+005 2.7211e-003 1.0068e+002 Sr-89 3.3175e-003 1.2275e+008 3.5709e-001 1.3212e+004 Sr-90 4.7379e-004 1.7530e+007 5.0998e-002 1.8869e+003 Sr-91 3.5866e-003 1.3271e+008 3.8606e-001 1.4284e+004 Sr-92 2.7267e-003 1.0089e+008 2.9350e-001 1.0860e+004 Tc-99m 8.0041e-004 2.9615e+007 8.6156e-002 3.1878e+003 Tc-101 2.3653e-006 8.7515e+004 2.5460e-004 9.4201e+000 Te-125m 5.0527e-005 1.8695e+006 5.4387e-003 2.0123e+002 Te-127 1.2146e-003 4.4939e+007 1.3074e-001 4.8372e+003 Te-127m 1.6567e-004 6.1298e+006 1.7833e-002 6.5981e+002

Page 3 Attachment 6 to PSL-ENG-SENS-04-037, Rev. 0 DOS File: SLlFIL02.MS5 Page 92 of 121 Run Date: March 11, 2003 Run Time: 10:42:28 AM Duration: 00:00:02 Nuc-ide curies becauerels Uci /cm3 Ba/gm2 Te-129 2.7962e-003 1.0346e+008 3.0099e-001 1.1136e+004 Te-129m 5.0334e-004 1.8623e+007 5.4179e-002 2.0046e+003 Te-131 6.2106e-004 2.2979e+007 6.6850e-002 2.4735e+003 Te-131m 1.4069e-003 5.2054e+007 1.5143e-001 5.6031e+003 Te-132 1.3507e-002 4.9977e+008 1.4539e+000 5.3795e+004 Te-133 2.7296e-004 1.0099e+007 2.9381e-002 1.0871e+003 Te-133m 1.5023e-003 5.5585e+007 1.6171e-001 5.9832e+003 Te-134 2.0791e-003 7.6927e+007 2.2379e-001 8.2804e+003 Y-90 1.0207e-005 3.7767e+005 1.0987e-003 4.0652e+001 Y-91 4.9095e-005 1.8165e+006 5.2845e-003 1.9553e+002 Y-91m 1.2336e-003 4.5642e+007 1.3278e-001 4.9128e+003 Y-92 6.1176e-004 2.2635e+007 6.5850e-002 2.4364e+003 Y-93 4.6690e-005 1.7275e+006 5.0256e-003 1.8595e+002 Zr-95 6.1702e-005 2.2830e+006 6.6415e-003 2.4574e+002 Zr-97 5.6935e-005 2.1066e+006 6.1284e-003 2.2675e+002 Buildup The material reference is  : Shield 2 Integration Parameters Z Direction 20 Y Direction 20 Results Engrcry Activity Fluence Rate Fluence Rate Exnosure Rate Exposure Rate MeV photons/sec MeV/CM2 /sec MeV/CM2Lgg& mR/hr mR/hr NQ Buildup With Buildup No-Build1u With Buildup 0.015 2.174e+05 2.782e-173 3.773e-30 2.386e-174 3.236e-31 0.02 6.100e+06 4.044e-76 1.665e-28 1.401e-77 5.769e-30 0.03 8.061e+08 3.076e-24 6.097e-24 3.048e-26 6.042e-26 0.04 2.747e+07 1.439e-13 5.215e-13 6.363e-16 2.306e-15 0.05 6.589e+07 7.846e-09 4.786e-08 2.090e-11 1.275e-10 0.06 3.085e+07 3.437e-07 3.211e-06 6.827e-10 6.377e-09 0.08 1.184e+08 6.423e-05 9.844e-04 1.016e-07 1.558e-06 0.1 9.884e+07 2.848e-04 5.750e-03 4.357e-07 8.797e-06 0.15 2.731e+08 5.195e-03 1.215e-01 8.556e-06 2.002e-04 0.2 7.671e+08 4.008e-02 8.642e-01 7.075e-05 1.525e-03 0.3 7.482e+08 1.395e-01 2.258e+00 2.646e-04 4.282e-03 0.4 3.394e+09 1.480e+00 1.823e+01 2.885e-03 3.551e-02 0.5 7.819e+09 6.447e+00 6.331e+01 1.266e-02 1.243e-01 0.6 7.054e+09 9.637e+00 7.840e+01 1.881e-02 1.530e-01 0.8 1.234e+10 3.642e+01 2.219e+02 6.928e-02 4.220e-01 1.0 5.000e+09 2.622e+01 1.289e+02 4.834e-02 2.376e-01 1.5 5.644e+09 7.923e+01 2.742e+02 1.333e-01 4.614e-01 2.0 6.196e+09 1.647e+02 4.655e+02 2.547e-01 7.199e-01 3.0 8.322e+08 4.976e+01 1.110e+02 6.752e-02 1.505e-01 4.0 3.286e+06 3.291e-01 6.367e-01 4.071e-04 7.876e-04 5.0 3.265e+07 4.723e+00 8.249e+00 5.414e-03 9.456e-03 TOTALS: 5.126e+10 3.791e+02 1.374e+03 6.136e-01 2.321e+00

MicroShield 5.0 5 ( 5.05-0000) Attachment 6 to PSL-ENG-SENS-04-037. Rev. 0 Micr~hild 5.05(5.5-000)Page 93 of 121 Grove Engineering Page  : 1 File Ref:

DOS File: SL1FIL03.MS5 Date:

Run Date: March 11, 2003 By:

Run Time: 10:44:08 AM Checked:

Duration: 00:00:02 Case

Title:

sllfilO3

Description:

St. Lucie Unit 1 LOCA (Filter to Control Room) - 8 hr Geometry: 4 - Rectangular Area - Vertical Source Dimensions Width 76.2 cm 2 ft 6.0 in Height 121.92 cm 4 ft Dose Points X x Y

1. 1 816.5592 cm 49.3776 cm 38.1 cm 26 ft 9.5 in 1 ft 7.4 in 1 ft 3.0 in Shields Shield Name Dimension Material Density Shield 2 491.338 cm Air 0.00122 Shield 2 20.422 cm Concrete 2.35 Air Gap Air 0.00122 Source Input Grouping Method : Standard Indices Number of Groups : 25 Lower Energy Cutoff : 0.015 Photons < 0.015 : Excluded Library : Grove Nuclide curies becouerels UCk/CM2 Ba/Cm2 Am-241 1.4329e-008 5.3017e+002 1.5424e-006 5.7067e-002 Am-242 4.8906e-006 1.8095e+005 5.2642e-004 1.9478e+001 Ba-137m 1.5467e-002 5.7230e+008 1.6649e+000 6.1602e+004 Ba-139 1.5534e-004 5.7477e+006 1.6721e-002 6.1868e+002 Ba-140 8.2046e-003 3.0357e+008 8.8314e-001 3.2676e+004 Br-82 7.5133e-004 2.7799e+007 8.0872e-002 2.9923e+003 Br-83 1.1816e-003 4.3720e+007 1.2719e-001 4.7060e+003 Br-84 5.8722e-007 2.1727e+004 6.3208e-005 2.3387e+000 Ce-141 1.9983e-004 7.3936e+006 2.1509e-002 7.9584e+002 Ce-143 1.5459e-004 5.7198e+006 1.6640e-002 6.1568e+002 Ce-144 1.6839e-004 6.2303e+006 1.8125e-002 6.7063e+002 Cm-242 4.6477e-006 1.7197e+005 5.0028e-004 1.8510e+001 Cm-244 6.9929e-007 2.5874e+004 7.5271e-005 2.7850e+000 Co-58 1.8855e-007 6.9764e+003 2.0295e-005 7.5093e-001 Co-60 2.1068e-008 7.7952e+002 2.2677e-006 8.3906e-002 Cs-134 2.8290e-002 1.0467e+009 3.0451e+000 1.1267e+005 Cs-134m 9.3786e-004 3.4701e+007 1.0095e-001 3.7352e+003 Cs-136 7.4872e-003 2.7703e+008 8.0591e-001 2.9819e+004 Cs-137 1.3953e-002 5.1627e+008 1.5019e+000 5.5571e+004 Cs-138 3.7145e-005 1.3744e+006 3.9983e-003 1.4794e+002 Eu-154 1.0665e-006 3.9460e+004 1.1480e-004 4.2474e+000 Eu-155 7.2247e-007 2.6731e+004 7.7765e-005 2.8773e+000 Eu-156 1.8622e-005 6.8901e+005 2.0044e-003 7.4164e+001 1-130 4.1600e-003 1.5392e+008 4.4778e-001 1.6568e+004 I-131 1.0544e-001 3.9012e+009 1.1349e+001 4.1992e+005

Page 2 Attachment 6 to PSL-ENG-SENS-04-037, Rev. 0 DOS File: SLlFIL03.MS5 Page 94 of 121 Run Date: March 11, 2003 Run Time: 10:44:08 AM Duration: 00:00:02 Nuclide curies beccurrla M&CiL/CM2 Ba/CM2 I-132 3.3186e-002 1.2279e+009 3.5722e+000 1.3217e+005 I-133 1.6248e-001 6.0117e+009 1.7489e+001 6.4709e+005 I-134 6.8621e-004 2.5390e+007 7.3863e-002 2.7329e+003 I-135 8.4979e-002 3.1442e+009 9.1470e+000 3.3844e+005 La-140 1.0114e-003 3.7421e+007 1.0886e-001 4.0279e+003 La-141 4.3844e-005 1.6222e+006 4.7193e-003 1.7461e+002 La-142 2.0861e-006 7.7185e+004 2.2454e-004 8.3082e+000 Mo-99 1.1482e-003 4.2482e+007 1.2359e-001 4.5727e+003 Nb-95 8.1015e-005 2.9975e+006 8.7203e-003 3.2265e+002 Nb-95m 5.7080e-007 2.1120e+004 6.1441e-005 2.2733e+000 Nb-97 4.0691e-006 1.5056e+005 4.3799e-004 1.6206e+001 Nd-147 3.1272e-005 1.1571e+006 3.3661e-003 1.2454e+002 Np-238 8.0370e-005 2.9737e+006 8.6510e-003 3.2009e+002 Np-239 2.9500e-003 1.0915e+008 3.1754e-001 1.1749e+004 Pd-109 2.0714e-004 7.6640e+006 2.2296e-002 8.2495e+002 Pm-147 7.8887e-006 2.9188e+005 8.4913e-004 3.1418e+001 Pm-148 1.4126e-005 5.2268e+005 1.5206e-003 5.6260e+001 Pm-148m 1.8776e-006 6.9471e+004 2.0210e-004 7.4778e+000 Pm-149 2.8273e-005 1.0461e+006 3.0432e-003 1.1260e+002 Pm-151 9.2109e-006 3.4080e+005 9.9146e-004 3.6684e+001 Pr-143 7.3875e-005 2.7334e+006 7.9519e-003 2.9422e+002 Pr-144 1.7248e-004 6.3816e+006 1.8565e-002 6.8691e+002 Pr-144m 3.1705e-006 1.1731e+005 3.4127e-004 1.2627e+001 Pu-238 9.0966e-007 3.3657e+004 9.7915e-005 3.6228e+000 Pu-239 6.3637e-008 2.3546e+003 6.8498e-006 2.5344e-001 Pu-240 1.0719e-007 3.9660e+003 1.1538e-005 4.2689e-001 Pu-241 2.6995e-005 9.9880e+005 2.9057e-003 1.0751e+002 Pu-243 3.2772e-005 1.2126e+006 3.5276e-003 1.3052e+002 Rb-86 2.5178e-004 9.3158e+006 2.7101e-002 1.0027e+003 Rb-88 1.2171e-001 4.5033e+009 1.3101e+001 4.8474e+005 Rh-103m 1.0951e-003 4.0518e+007 1.1787e-001 4.3614e+003 Rh-105 7.2859e-004 2.6958e+007 7.8425e-002 2.9017e+003 Rh-106 1.1193e-003 4.1413e+007 1.2048e-001 4.4577e+003 Ru-103 1.0895e-003 4.0313e+007 1.1728e-001 4.3392e+003 Ru-105 2.4048e-004 8.8977e+006 2.5885e-002 9.5774e+002 Ru-106 5.4424e-004 2.0137e+007 5.8582e-002 2.1675e+003 Sb-124 3.5675e-005 1.3200e+006 3.8401e-003 1.4208e+002 Sb-125 2.9829e-004 1.1037e+007 3.2108e-002 1.1880e+003 Sb-126 2.0272e-005 7.5008e+005 2.1821e-003 8.0737e+001 Sb-127 1.5024e-003 5.5590e+007 1.6172e-001 5.9836e+003 Sb-129 1.2318e-003 4.5576e+007 1.3259e-001 4.9057e+003 Sm-153 2.9995e-005 1.1098e+006 3.2286e-003 1.1946e+002 Sr-89 4.2875e-003 1.5864e+008 4.6151e-001 1.7076e+004 Sr-90 6.1450e-004 2.2737e+007 6.6144e-002 2.4473e+003 Sr-91 3.0026e-003 1.1110e+008 3.2320e-001 1.1958e+004 Sr-92 7.6226e-004 2.8204e+007 8.2049e-002 3.0358e+003 Tc-99m 1.0347e-003 3.8285e+007 1.1138e-001 4.1210e+003 Te-125m 6.5542e-005 2.4250e+006 7.0548e-003 2.6103e+002 Te-127 1.5393e-003 5.6956e+007 1.6569e-001 6.1306e+003 Te-127m 2.1497e-004 7.9537e+006 2.3139e-002 8.5613e+002 Te-129 1.7328e-003 6.4113e+007 1.8651e-001 6.9010e+003 Te-129m 6.5188e-004 2.4119e+007 7.0167e-002 2.5962e+003 Te-131 3.6361e-004 1.3454e+007 3.9139e-002 1.4481e+003

Page 3 Attachment 6 to PSL-ENG-SENS-04-037. Rev. 0 DOS File: SL1FIL03.MS5 Page 95 of 121 Run Date: March 11, 2003 Run Time: 10:44:08 AM Duration: 00:00:02 Nu1cd3e curies becauerels Ba/Cm2 Te-131m 1.5885e-003 5.8774e+007 1.7098e-001 6.3264e+003 Te-132 1.6607e-002 6.1447e+008 1.7876e+000 6.6141e+004 Te-133 3.7367e-006 1.3826e+005 4.0222e-004 1.4882e+001 Te-133m 2.1555e-005 7.9752e+005 2.3201e-003 8.5844e+001 Te-134 6.8896e-006 2.5491e+005 7.4159e-004 2.7439e+001 Y-90 5.0602e-005 1.8723e+006 5.4468e-003 2.0153e+002 Y-91 7.2964e-005 '2.6997e+006 7.8538e-003 2.9059e+002 Y-91m 1.9077e-003 7.0584e+007 2.0534e-001 7.5976e+003 Y-92 1.3083e-003 4.8407e+007 1.4083e-001 5.2105e+003 Y-93 4.0117e-005 1.4843e+006 4.3182e-003 1.5977e+002 Zr-95 7.9812e-005 2.9531e+006 8.5909e-003 3.1786e+002 Zr-97 5.7737e-005 2.1363e+006 6.2147e-003 2.2994e+002 Buildup The material reference is : Shield 2 Integration Parameters Z Direction 20 Y Direction 20 Results Enerov Activity Fluence Rate Fluence Rate Exposure Rate Exposure Rate NMe photons/sec MeV/CM2/sec MeV/cm2 /sec mR/hr mR/hr No Buildup With Buildup No Buildup With Buildup 0.015 3.320e+05 4.248e-173 5.761e-30 3.644e-174 4.942e-31 0.02 7.758e+06 5.143e-76 2.118e-28 1.782e-77 7.338e-30 0.03 8.128ei08 3.10le-24 6.147e-24 3.073e-26 6.092e-26 0.04 2.761e+07 1.446e-13 5.241e-13 6.396e-16 2.318e-15 0.05 8.101e+07 9.647e-09 5.885e-08 2.570e-11 1.568e-10 0.06 3.731e+07 4.157e-07 3.883e-06 8.257e-10 7.713e-09 0.08 1.227e+08 6.653e-05 1.020e-03 1.053e-07 1.613e-06 0.1 1.095e+08 3.155e-04 6.370e-03 4.827e-07 9.746e-06 0.15 1.199e+08 2.282e-03 5.339e-02 3.758e-06 8.792e-05 0.2 6.886e+08 3.598e-02 7.757e-01 6.350e-05 1.369e-03 0.3 6.760e+08 1.260e-01 2.040e+00 2.390e-04 3.869e-03 0.4 3.481e+09 1.518e+00 1.869e+01 2.958e-03 3.642e-02 0.5 6.233e+09 5.140e+00 5.047e+01 1.009e-02 9.907e-02 0.6 4.083e+09 5.578e+00 4.538e+01 1.089e-02 8.857e-02 0.8 4.194e+09 1.238e+01 7.543e+01 2.355e-02 1.435e-01 1.0 2.251e+09 1.181e+01 5.804e+01 2.176e-02 1.070e-01 1.5 2.221e+09 3.117e+01 1.079e+02 5.245e-02 1.815e-01 2.0 1.390e+09 3.695e+01 1.045e+02 5.715e-02 1.616e-01 3.0 1.292e+08 7.724e+00 1.722e+01 1.048e-02 2.336e-02 4.0 3.581e+03 3.586e-04 6.938e-04 4.436e-07 8.583e-07 5.0 6.457e+06 9.338e-01 1.631e+00 1.070e-03 1.870e-03 TOTALS: 2.667e+10 1. 134e+02 4.821e+02 1.907e-01 8.482e-01

MicroShield v5.05 Hicr~hied (5.05-0000) v505 (.05-000)Page Attachment 6 to PSL-ENG-SENS-04-037, Rev. 0 96 of 121 Grove Engineering Page  : 1 File Ref:

DOS File: SLlFIL04.MS5 Date:

Run Date: March 11, 2003 By:

Run Time: 10:45:05 AM Checked:

Duration: 00:00:02 Case

Title:

sllfilO4

Description:

St. L ucie Unit 1 LOCA (Filter to Control Room) - 24 hr Geome try: 4 - Rectangular Area - Vertical Source Dimensions Width 76.2 cm 2 ft 6.0 in Height 121.92 cm 4 ft Dose Points

1. 1 816.5592 cm 49.3776 cm 38.1 cm 26 ft 9.5 in 1 ft 7.4 in 1 ft 3.0 in Shields Shield Name Dimension Material Density Shield 1 491.338 cm Air 0.00122 Shield 2 20.422 cm Concrete 2.35 Air Gap Air 0.00122 Source Input Grouping Method : Standard Indices Number of Groups : 25 Lower Energy Cutoff : 0.015 Photons < 0.015 : Excluded Library : Grove 4uclide curies becauerala mCi/cm2 Ba/cm2 Am-241 1.4458e-008 5.3495e+002 1.5562e-006 5.7581e-002 Am-242 2.4560e-006 9.0873e+004 2.6436e-004 9.7815e+000 Ba-137m 1.5509e-002 5.7383e+008 1.6694e+000 6.1767e+004 Ba-139 4.9936e-008 1.8476e+003 5.3751e-006 1.9888e-001 Ba-140 7.9403e-003 2.9379e+008 8.5469e-001 3.1623e+004 Br-82 5.6006e-004 2.0722e+007 6.0284e-002 2.2305e+003 Br-83 1.1644e-005 4.3081e+005 1.2533e-003 4.6372e+001 Ce-141 1.9791e-004 7.3225e+006 2.1302e-002 7.8819e+002 Ce-143 1.1086e-004 4.1017e+006 1.1933e-002 4.4151e+002 Ce-144 1.6870e-004 6.2421e+006 1.8159e-002 6.7189e+002 Cm-242 4.6592e-006 1.7239e+005 5.0151e-004 1.8556e+001 Cm-244 7.0170e-007 2.5963e+004 7.5531e-005 2.7946e+000 Co-58 1.8733e-007 6.9312e+003 2.0164e-005 7.4607e-001 Co-60 2.1063e-008 7.7933e+002 2.2672e-006 8.3886e-002 Cs-134 2.8351e-002 1.0490e+009 3.0516e+000 1.1291e+005 Cs-134m 2.0534e-005 7.5977e+005 2.2103e-003 8.1781e+001 Cs-136 7.2477e-003 2.6816e+008 7.8014e-001 2.8865e+004 Cs-137 1.3991e-002 5.1769e+008 1.5060e+000 5.5723e+004 Eu-154 1.0701e-006 3.9594e+004 1.1518e-004 4.2618e+000 Eu-155 7.2483e-007 2.6819e+004 7.8020e-005 2.8867e+000 Eu-156 1.8127e-005 6.7071e+005 1.9512e-003 7.2194e+001 I-130 1.7585e-003 6.5063e+007 1.8928e-001 7.0033e+003 I-131 1.0329e-001 3.8219e+009 1.1119e+001 4.1138e+005 I-132 1.5085e-002 5.5813e+008 1.6237e+000 6.0076e+004 I-133 9.8854e-002 3.6576e+009 1.0641e+001 3.9370e+005

Page 2 Attachment 6 to PSL-ENG-SENS-04-037, Rev. 0 DOS File: SLlFIL04.MS5 Page 97 of 121 Run Date: March 11, 2003 Run Time: 10:45:05 AM Duration: 00:00:02 Nucl-ide curies becouerels UCi/CM2 I-134 2.1085e-009 7.8015e+001 2.2696e-007 8.3974e-003 I-135 1.6457e-002 6.0893e+008 1.7715e+000 6.5544e+004 La-140 2.7156e-003 1.0048e+008 2.923le-001 1.0815e+004 La-141 2.6148e-006 9.6749e+004 2.8146e-004 1.0414e+001 La-142 1.4400e-009 5.3280e+001 1.5500e-007 5.7350e-003 Mo-99 9.7376e-004 3.6029e+007 1.0481e-001 3.8781e+003 Nb-95 8.1281e-005 3.0074e+006 8.7490e-003 3.2371e+002 Nb-95m 5.7111e-007 2.1131e+004 6.1474e-005 2.2745e+000 Nb-97 1.7251e-006 6.3829e+004 1.8569e-004 6.8705e+000 Nd-147 3.0089e-005 1.1133e+006 3.2388e-003 1.1983e+002 Np-238 6.4838e-005 2.3990e+006 6.9791e-003 2.5823e+002 Np-239 2.4330e-003 9.0020e+007 2.6188e-001 9.6897e+003 Pd-109 9.1005e-005 3.3672e+006 9.7957e-003 3.6244e+002 Pm-147 7.9276e-006 2.9332e+005 8.5332e-004 3.1573e+001 Pm-148 1.3015e-005 4.8154e+005 1.4009e-003 5.1833e+001 Pm-148m 1.8632e-006 6.8938e+004 2.0055e-004 7.4204e+000 Pm-149 2.3022e-005 8.5183e+005 2.4781e-003 9.1690e+001 Pm-151 6.2551e-006 2.3144e+005 6.7330e-004 2.4912e+001 Pr-143 7.6062e-005 2.8143e+006 8.1872e-003 3.0293e+002 Pr-144 1.7280e-004 6.3937e+006 1.8600e-002 6.8821e+002 Pr-144m 3.1767e-006 1.1754e+005 3.4193e-004 1.2651e+001 Pu-238 9.1396e-007 3.3817e+004 9.8378e-005 3.6400e+000 Pu-239 6.4003e-008 2.3681e+003 6.8892e-006 2.5490e-001 Pu-240 1.0757e-007 3.9799e+003 1.1578e-005 4.2840e-001 Pu-241 2.7088e-005 1.0022e+006 2.9157e-003 1.0788e+002 Pu-243 3.5091e-006 1.2984e+005 3.7772e-004 1.3976e+001 Rb-86 2.4631e-004 9.1133e+006 2.6512e-002 9.8095e+002 Rb-88 1.1308e-003 4.1840e+007 1.2172e-001 4.5036e+003 Rh-103m 1.0864e-003 4.0198e+007 1.1694e-001 4.3268e+003 Rh-105 5.5680e-004 2.0602e+007 5.9934e-002 2.2175e+003 Rh-106 1.1218e-003 4.1506e+007 1.2075e-001 4.4677e+003 Ru-103 1.0806e-003 3.9982e+007 1.163le-001 4.3036e+003 Ru-105 1.9853e-005 7.3455e+005 2.1369e-003 7.9067e+001 Ru-106 5.4548e-004 2.0183e+007 5.8714e-002 2.1724e+003 Sb-124 3.5527e-005 1.3145e+006 3.8241e-003 1.4149e+002 Sb-125 2.9920e-004 1.1070e+007 3.2205e-002 1.1916e+003 Sb-126 1.9600e-005 7.2518e+005 2.1097e-003 7.8058e+001 Sb-127 1.3372e-003 4.9476e+007 1.4393e-001 5.3255e+003 Sb-129 9.4871e-005 3.5102e+006 1.0212e-002 3.7784e+002 Sm-153 2.3738e-005 8.7830e+005 2.5551e-003 9.4539e+001 Sr-89 4.2634e-003 1.5775e+008 4.5891e-001 1.6980e+004 Sr-90 6.1664e-004 2.2816e+007 6.6375e-002 2.4559e+003 Sr-91 9.3764e-004 3.4693e+007 1.0093e-001 3.7343e+003 Sr-92 1.2774e-005 4.7265e+005 1.3750e-003 5.0876e+001 Tc-99m 9.2808e-004 3.4339e+007 9.9897e-002 3.6962e+003 Te-125m 6.5792e-005 2.4343e+006 7.0818e-003 2.6203e+002 Te-127 1.4226e-003 5.2635e+007 1.5313e-001 5.6656e+003 Te-127m 2.1586e-004 7.9869e+006 2.3235e-002 8.5970e+002 Te-129 5.2451e-004 1.9407e+007 5.6457e-002 2.0889e+003 Te-129m 6.4660e-004 2.3924e+007 6.9600e-002 2.5752e+003 Te-131 2.5211e-004 9.3281e+006 2.7137e-002 1.0041e+003 Te-131m 1.1015e-003 4.0755e+007 1.1856e-001 4.3868e+003 Te-132 1.4463e-002 5.3512e+008 1.5568e+000 5.7600e+004

Page 3 Attachment 6 to PSL-ENG-SENS-04-037. Rev. 0 DOS File: SLlFIL04.MS5 Page 98 of 121 Run Date: March 11, 2003 Run Time: 10:45:05 AM Duration: 00:00:02 Nuclide curies becqruerels UCi /CM2 Ba/CM2 Y-90 1.4082e-004 5.2103e+006 1.5158e-002 5.6083e+002 Y-91 8.7375e-005 3.2329e+006 9.4050e-003 3.4798e+002 Y-91m 5.9873e-004 2.2153e+007 6.4446e-002 2.3845e+003 Y-92 1.2452e-004 4.6072e+006 1.3403e-002 4.9592e+002 Y-93 1.3427e-005 4.9681e+005 1.4453e-003 5.3477e+001 Zr-95 7.9517e-005 2.9421e+006 8.5592e-003 3.1669e+002 Zr-97 3.0060e-005 1.1122e+006 3.2356e-003 1.1972e+002 Buildup The material reference is  : Shield 2 Integration Parameters Z Direction 20 Y Direction 20 Results Enerovy Activity Fluence Rate Fluence Rate Exposure Rate Exposure Rate MeV photons/sec MeV/CM2/sec NeV/Cm2/sec mR/hr mE/hr No Buil up With Buildup No Build=s With Buildup 0.015 1.llOe+05 1.420e-173 1.925e-30 1.218e-174 1.651e-31 0.02 7.169e+06 4.752e-76 1.957e-28 1.646e-77 6.780e-30 0.03 7.084e+08 2.703e-24 5.358e-24 2.679e-26 5.310e-26 0.04 2.622e+07 1.374e-13 4.979e-13 6.076e-16 2.202e-15 0.05 7.055e+07 8.401e-09 5.125e-08 2.238e-11 1.365e-10 0.06 3.570e+07 3.978e-07 3.716e-06 7.901e-10 7.380e-09 0.08 1.189e+08 6.448e-05 9.881e-04 1.020e-07 1.564e-06 0.1 9.091e+07 2.620e-04 5.289e-03 4.008e-07 8.092e-06 0.15 1.022e+08 1.944e-03 4.548e-02 3.202e-06 7.490e-05 0.2 5.566e+08 2.908e-02 6.270e-01 5.133e-05 1.107e-03 0.3 5.430e+08 1.012e-01 1.638e+00 1.920e-04 3.108e-03 0.4 3.219e+09 1.404e+00 1.729e+01 2.736e-03 3.368e-02 0.5 3.709e+09 3.058e+00 3.003e+01 6.003e-03 5.894e-02 0.6 3.001e+09 4.100e+00 3.336e+01 8.003e-03 6.511e-02 0.8 2.374e+09 7.007e+00 4.268e+01 1.333e-02 8.119e-02 1.0 8.584e+08 4.502e+00 2.213e+01 8.299e-03 4.080e-02 1.5 6.492e+08 9.113e+00 3.154e+01 1.533e-02 5.306e-02 2.0 9.756e+07 2.593e+00 7.330e+00 4.010e-03 1.134e-02 3.0 4.764e+06 2.849e-01 6.352e-01 3.865e-04 8.618e-04 4.0 1.399e+00 1.400e-07 2.710e-07 1.733e-10 3.352e-10 5.0 5.999e+04 8.676e-03 1.515e-02 9.946e-06 1.737e-05 TOTALS: 1.617e+10 3.220e+01 1.873e+02 5.835e-02 3.493e-01

icroShield 5.05 (5.05-0000) Attachment 6 to PSL-ENG-SENS-04-037, Rev. 0 Micr~hild 5.05(5.5-000)Page 99 of 121 Grove Engineering Page  : 1 File Ref:

DOS File: SLlFIL05.MS5 Date:

Run Date: March 11, 2003 By:

Run Time: 10:46:07 AM Checked:

Duration: 00:00:02 Case

Title:

sllfilO5

Description:

St. L ucie Unit 1 LOCA (Filter to Control Room) - 96 hr Geome try: 4 - Rectangular Area - Vertical Source Dimensions Width 76.2 cm 2 ft 6.0 in Height 121.92 cm 4 ft Dose Points IK ~ X

1. 1 816.5592 cm 49.3776 cm 38.1 cm 26 ft 9.5 in 1 ft 7.4 in 1 ft 3.0 in Shields Shield N1e Dimension Material Density Shield 1 491.338 cm Air 0.00122 Shield 2 20.422 cm Concrete 2.35 Air Gap Air. 0.00122 Source Input Grouping Method : Standard Indices Number of Groups : 25 Lower Energy Cutoff : 0.015 Photons < 0.015 : Excluded Library : Grove Nuclide curies beccruerala mCi/cm2 Ba/CM2 Am-241 1.4815e-008 5.4816e+002 1.5947e-006 5.9003e-002 Am-242 1.0897e-007 4.0318e+003 1.1729e-005 4.3398e-001 Ba-137m 1.5507e-002 5.7375e+008 1.6691e+000 6.1758e+004 Ba-140 6.7445e-003 2.4955e+008 7.2597e-001 2.6861e+004 Br-82 1.3937e-004 5.1565e+006 1.5001e-002 5.5505e+002 Ce-141 1.8565e-004 6.8691e+006 1.9983e-002 7.3939e+002 Ce-143 2.4433e-005 9.0400e+005 2.6299e-003 9.7306e+001 Ce-144 1.6747e-004 6.1964e+006 1.8026e-002 6.6697e+002 Cm-242 4.6080e-006 1.7050e+005 4.9600e-004 1.8352e+001 Cm-244 7.0149e-007 2.5955e+004 7.5507e-005 2.7938e+000 Co-58 1.8190e-007 6.7303e+003 1.9580e-005 7.2444e-001 Co-60 2.1040e-008 7.7848e+002 2.2647e-006 8.3795e-002 Cs-134 2.8272e-002 1.0461e+009 3.0432e+000 1.1260e+005 Cs-136 6.1839e-003 2.2880e+008 6.6563e-001 2.4628e+004 Cs-137 1.3988e-002 5.1757e+008 1.5057e+000 5.5710e+004 Eu-154 1.0694e-006 3.9568e+004 1.1511e-004 4.2591e+000 Eu-155 7.2400e-007 2.6788e+004 7.7930e-005 2.8834e+000 Eu-156 1.5809e-005 5.8491e+005 1.7016e-003 6.2960e+001 I-130 4.0649e-005 1.5040e+006 4.3754e-003 1.6189e+002 1-131 1.0462e-001 3.8710e+009 1.1261e+001 4.1667e+005 I-132 7.8952e-003 2.9212e+008 8.4983e-001 3.1444e+004 I-133 1.1761e-002 4.3517e+008 1.2660e+000 4.6841e+004 I-135 1.1346e-005 4.1982e+005 1.2213e-003 4.5189e+001 La-140 5.9066e-003 2.1854e+008 6.3578e-001 2.3524e+004 Mo-99 4.5715e-004 1.6914e+007 4.9207e-002 1.8207e+003

Page 2 SLlFIL05.MS5 Attachment 6 to PSL-ENG-SENS-04-037, Rev. 0 DOS File: Page 100 of 121 Run Date: March 11, 2003 Run Time: 10:46:07 AM Duration: 00:00:02 Nuclide curies becauerala UCi/Cm2 Ba/Cm2 Nb-95 8.1107e-005 3.0009e+006 8.7302e-003 3.2302e+002 Nb-95m 5.6049e-007 2.0738e+004 6.033le-005 2.2322e+000 Nb-97 9.001le-008 3.3304e+003 9.6887e-006 3.5848e-001 Nd-147 2.4898e-005 9.2121e+005 2.6800e-003 9.9159e+001 Np-238 2.4280e-005 8.9834e+005 2.6134e-003 9.6697e+001 Np-239 1.0062e-003 3.7228e+007 1.0830e-001 4.0072e+003 Pd-109 2.2123e-006 8.1853e+004 2.3812e-004 8.8106e+000 Pm-147 7.9698e-006 2.9488e+005 8.5786e-004 3.1741e+001 Pm-148 8.8625e-006 3.2791e+005 9.5395e-004 3.5296e+001 Pm-148m 1.7718e-006 6.5555e+004 1.9071e-004 7.0563e+000 Pm-149 8.9914e-006 3.3268e+005 9.6783e-004 3.5810e+001 Pm-151 1.0791e-006 3.9927e+004 1.1615e-004 4.2977e+000 Pr-143 7.3222e-005 2.7092e+006 7.8815e-003 2.9162e+002 Pr-144 1.7154e-004 6.3468e+006 1.8464e-002 6.8317e+002 Pr-144m 3.1535e-006 1.1668e+005 3.3944e-004 1.2559e+001 Pu-238 9.1688e-007 3.3924e+004 9.8692e-005 3.6516e+000 Pu-239 6.4385e-008 2.3822e+003 6.9304e-006 2.5642e-001 Pu-240 1.0757e-007 3.9800e+003 1.1578e-005 4.2840e-001 Pu-241 2.7077e-005 1.0018e+006 2.9145e-003 1.0784e+002 Pu-243 1.3601e-010 5.0324e+000 1.4640e-008 5.4168e-004 Rb-86 2.2033e-004 8.1522e+006 2.3716e-002 8.7749e+002 Rh-103m 1.0304e-003 3.8125e+007 1.1091e-001 4.1037e+003 Rh-105 1.3645e-004 5.0486e+006 1.4687e-002 5.4342e+002 Rh-106 1.1155e-003 4.1272e+007 1.2007e-001 4.4425e+003 Ru-103 1.0249e-003 3.7920e+007 1.1032e-001 4.0817e+003 Ru-105 2.3875e-010 8.8337e+000 2.5699e-008 9.5086e-004 Ru-106 5.4241e-004 2.0069e+007 5.8384e-002 2.1602e+003 Sb-124 3.4321e-005 1.2699e+006 3.6943e-003 1.3669e+002 Sb-125 2.9859e-004 1.1048e+007 3.2139e-002 1.1892e+003 Sb-126 1.6574e-005 6.1324e+005 1.7840e-003 6.6009e+001 Sb-127 7.7917e-004 2.8829e+007 8.3869e-002 3.1032e+003 Sb-129 8.3496e-010 3.0894e+001 8.9874e-008 3.3254e-003 Sm-153 8.1533e-006 3.0167e+005 8.7761e-004 3.2472e+001 Sr-89 4.0915e-003 1.5138e+008 4.4040e-001 1.6295e+004 Sr-90 6.1652e-004 2.2811e+007 6.6362e-002 2.4554e+003 Sr-91 4.9040e-006 1.8145e+005 5.2786e-004 1.9531e+001 Tc-99m 4.4115e-004 1.6323e+007 4.7485e-002 1.7570e+003 Te-125m 6.5875e-005 2.4374e+006 7.0907e-003 2.6236e+002 Te-127 9.2520e-004 3.4232e+007 9.9588e-002 3.6847e+003 Te-127m 2.1522e-004 7.9631e+006 2.3166e-002 8.5714e+002 Te-129 3.9808e-004 1.4729e+007 4.2849e-002 1.5854e+003 Te-129m 6.0791e-004 2.2493e+007 6.5434e-002 2.4211e+003 Te-131 4.7766e-005 1.7673e+006 5.1415e-003 1.9024e+002 Te-131m 2.0869e-004 7.7214e+006 2.2463e-002 8.3112e+002 Te-132 7.6399e-003 2.8267e+008 8.2235e-001 3.0427e+004 Y-90 3.9848e-004 1.4744e+007 4.2892e-002 1.5870e+003 Y-91 9.0797e-005 3.3595e+006 9.7733e-003 3.6161e+002 Y-91m 3.1313e-006 1.1586e+005 3.3705e-004 1.2471e+001 Y-93 9.5946e-008 3.5500e+003 1.0328e-005 3.8212e-001 Zr-95 7.6975e-005 2.8481e+006 8.2855e-003 3.0656e+002 Zr-97 1.5685e-006 5.8035e+004 1.6883e-004 6.2468e+000 Buildup The material reference is : Shield 2

Page  : 3 Attachment 6 to PSL-ENG-SENS-04-037. Rev. 0 DOS File: SLlFIL05.MS5 Page 101 of 121 Run Date: March 11, 2003 Run Time: 10:46:07 AM Duration: 00:00:02 Integration Parameters Z Direction 20 Y Direction 20 Results Enerov Activity Fluence Rate Fluence Rate Exposure Rate Exposure Rate MY photons/sec MeV/cm2Lqga MeV/CM2/sec mR/hr mg/hr No Buildup With Buildup No Bu ildup With Buildup 0.015 1.015e+04 1.299e-174 1.762e-31 1.114e-175 1.511e-32 0.02 5.010e+06 3.321e-76 1.368e-28 1.151e-77 4.739e-30 0.03 5.057e+08 1.929e-24 3.825e-24 1.912e-26 3.790e-26 0.04 2.247e+07 1.177e-13 4.265e-13 5.205e-16 1.886e-15 0.05 3.730e+07 4.442e-09 2.710e-08 1.183e-11 7.219e-11 0.06 2.950e+07 3.287e-07 3.070e-06 6.529e-10 6.099e-09 0.08 1.162e+08 6.303e-05 9.660e-04 9.974e-08 1.529e-06 0.1 4.022e+07 1.159e-04 2.340e-03 1.773e-07 3.580e-06 0.15 6.967e+07 1.326e-03 3.10le-02 2.183e-06 5.107e-05 0.2 3.016e+08 1.576e-02 3.398e-01 2.782e-05 5.997e-04 0.3 4.747e+08 8.849e-02 1.432e+00 1.679e-04 2.717e-03 0.4 3.179e+09 1.387e+00 1.707e+01 2.702e-03 3.326e-02 0.5 7.059e+08 5.821e-01 5.716e+00 1.143e-03 1.122e-02 0.6 2.492e+09 3.405e+00 2.770e+01 6.646e-03 5.406e-02 0.8 1.697e+09 5.009e+00 3.051e+01 9.527e-03 5.803e-02 1.0 3.840e+08 2.014e+00 9.901e+00 3.713e-03 1.825e-02 1.5 3.003e+08 4.216e+00 1.459e+01 7.093e-03 2.455e-02 2.0 1.210e+07 3.216e-01 9.091e-01 4.973e-04 1.406e-03 3.0 7.782e+06 4.653e-01 1.038e+00 6.313e-04 1.408e-03 TOTALS: 1.038e+10 1.750e+01 1.092e+02 3.215e-02 2.056e-01

Attachment 6 to PSL-ENG-SENS-04-037. Rev. 0 MicroShield v5.05 (5.05-0000) Page102 of 121 Grove Engineering Page  : 1 File Ref:

DOS File: SLlFIL06.MS5 Date:

Run Date: March 11, 2003 By:

Run Time: 10:47:02 AM Checked:

Duration: 00:00:02 Case

Title:

sl1fil06

Description:

St. Lucie Unit 1 LOCA (Filter to Control Room) - 720 hr Geometry: 4 - Rectangular Area - Vertical Source Dimensions Width 76.2 cm 2 ft 6.0 in Height 121.92 cm 4 ft Dose Points z Y.

1. 1 816.5592 cm 49.3776 cm 38.1 cm 26 ft 9.5 in 1 ft 7.4 in 1 ft 3.0 in Shields Shield Name Dimension Material Density Shield 1 491.338 cm Air 0.00122 Shield 2 20.422 cm Concrete 2.35 Air Gap Air 0.00122 Source Input Grouping Method : Standard Indices Number of Groups : 25 Lower Energy Cutoff : 0.015 Photons < 0.015 : Excluded Library : Grove Nuclide curies becaruerels MCi/CM2 Am-241 1.7899e-008 6.6226e+002 1.9266e-006 7.1285e-002 Ba-137m 1.5481e-002 5.7278e+008 1.6663e+000 6.1654e+004 Ba-140 1.6391e-003 6.0647e+007 1.7643e-001 6.5280e+003 Br-82 7.5936e-010 2.8096e+001 8.1737e-008 3.0243e-003 Ce-141 1.0663e-004 3.9454e+006 1.1478e-002 4.2468e+002 Ce-143 4.5443e-011 1.6814e+000 4.8914e-009 1.8098e-004 Ce-144 1.5718e-004 5.8157e+006 1.6919e-002 6.2600e+002 Cm-242 4.1254e-006 1.5264e+005 4.4406e-004 1.6430e+001 Cm-244 6.9957e-007 2.5884e+004 7.5302e-005 2.7862e+000 Co-58 1.4102e-007 5.2177e+003 1.5179e-005 5.6163e-001 Co-60 2.0844e-008 7.7123e+002 2.2436e-006 8.3014e-002 Cs-134 2.7604e-002 1.0214e+009 2.9713e+000 1.0994e+005 Cs-136 1.5624e-003 5.7808e+007 1.6817e-001 6.2224e+003 Cs-137 1.3965e-002 5.1671e+008 1.5032e+000 5.5619e+004 Eu-154 1.0634e-006 3.9347e+004 1.1447e-004 4.2353e+000 Eu-155 7.1683e-007 2.6523e+004 7.7159e-005 2.8549e+000 Eu-156 4.8265e-006 1.7858e+005 5.1952e-004 1.9222e+001 I-131 8.5932e-002 3.1795e+009 9.2497e+000 3.4224e+005 I-132 3.1281e-005 1.1574e+006 3.3671e-003 1.2458e+002 I-133 7.3754e-011 2.7289e+000 7.9388e-009 2.9374e-004 La-140 1.8880e-003 6.9857e+007 2.0323e-001 7.5193e+003 Mo-99 6.5156e-007 2.4108e+004 7.0133e-005 2.5949e+000 Nb-95 7.5172e-005 2.7813e+006 8.0914e-003 2.9938e+002 Nb-95m 4.3081e-007 1.5940e+004 4.6372e-005 1.7158e+000 Nd-147 4.8233e-006 1.7846e+005 5.1917e-004 1.9209e+001

Page 2 Attachment 6 to PSL-ENG-SENS-04-037. Rev. 0 DOS File: SL1FIL06.MS5 Page 103 of 121 Run Date: March 11, 2003 Run Time: 10:47:02 AM Duration: 00:00:02 Np318e curies becouerels ciL/CM2 Ba/CM2 Np-238 4.8768e-009 1.8044e+002 5.2493e-007 1.9422e-002 Np-239 4.7774e-007 1.7676e+004 5.1423e-005 1.9027e+000 Pm-147 8.0486e-006 2.9780e+005 8.6635e-004 3.2055e+001 Pm-148 3.6636e-007 1.3555e+004 3.9434e-005 1.4591e+000 Pm-148m 1.1452e-006 4.2371e+004 1.2327e-004 4.5608e+000 Pm-149 2.6000e-009 9.6199e+001 2.7986e-007 1.0355e-002 Pr-143 2.0114e-005 7.4421e+005 2.1650e-003 8.0106e+001 Pr-144 1.6101e-004 5.9573e+006 1.7331e-002 6.4124e+002 Pr-144m 2.9598e-006 1.0951e+005 3.1858e-004 1.1788e+001 Pu-238 9.2042e-007 3.4055e+004 9.9073e-005 3.6657e+000 Pu-239 6.4655e-008 2.3922e+003 6.9594e-006 2.5750e-001 Pu-240 1.0757e-007 3.9801e+003 1.1579e-005 4.2842e-001 Pu- 241 2.6985e-005 9.9844e+005 2.9046e-003 1.0747e+002 Rb-86 8.3876e-005 3.1034e+006 9.0283e-003 3.3405e+002 Rh-103m 6.5126e-004 2.4096e+007 7.010le-002 2.5937e+003 Rh-105 6.6477e-010 2.4596e+001 7.1555e-008 2.6475e-003 Rh-106 1.0622e-003 3.9302e+007 1.1434e-001 4.2304e+003 Ru-103 6.4776e-004 2.3967e+007 6.9724e-002 2.5798e+003 Ru-106 5.1650e-004 1.9110e+007 5.5595e-002 2.0570e+003 Sb-124 2.5442e-005 9.4134e+005 2.7385e-003 1.0133e+002 Sb-125 2.9331e-004 1.0852e+007 3.1572e-002 1.1682e+003 Sb-126 3.8747e-006 1.4336e+005 4.1707e-004 1.5431e+001 Sb-127 7.2227e-006 2.6724e+005 7.7744e-004 2.8765e+001 Sm-153 7.7447e-010 2.8655e+001 8.3363e-008 3.0844e-003 Sr-89 2.8635e-003 1.0595e+008 3.0822e-001 1.1404e+004 Sr-90 6.1547e-004 2.2773e+007 6.6249e-002 2.4512e+003 Tc-99m 6.2877e-007 2.3265e+004 6.7681e-005 2.5042e+000 Te-125m 6.6294e-005 2.4529e+006 7.1358e-003 2.6403e+002 Te-127 1.8956e-004 7.0138e+006 2.0404e-002 7.5496e+002 Te-127m 1.8663e-004 6.9055e+006 2.0089e-002 7.4330e+002 Te-129 2.3282e-004 8.6145e+006 2.5061e-002 9.2726e+002 Te-129m 3.5555e-004 1.3155e+007 3.8271e-002 1.4160e+003 Te-13lm 1.0466e-010 3.8724e+000 1.1266e-008 4.1682e-004 Te-132 3.0270e-005 1.1200e+006 3.2582e-003 1.2055e+002 Y-90 6.1544e-004 2.2771e+007 6.6246e-002 2.4511e+003 Y-91 6.6753e-005 2.4698e+006 7.1852e-003 2.6585e+002 Zr-95 5.8079e-005 2.1489e+006 6.2515e-003 2.3131e+002 Buildup The material reference is : Shield 2 Integration Parameters Z Direction 20 Y Direction 20 Results Energy Activity Fluence Rate Fluence Rate Exposure Rate Exnosure Rate NMy photons/skc MeV/CM2 sec MeV/cm~lsec mR/hr mR/hr No Ruildu With Buildup No Bu i4d With Buildup 0.015 7.781e+03 9.955e-175 1.350e-31 8.539e-176 1.158e-32 0.02 2.065e+06 1.369e-76 5.639e-29 4.743e-78 1.953e-30

Page 3 DOS File: SLlFIL06.MS5 Attachment 6 to PSL-ENG-SENS-04-037, Rev. 0 Page 104 of 121 Run Date: March 11, 2003 Run Time: 10:47:02 AM Duration: 00:00:02 Eneray Activity Fluence Rate Fluence Rate Exposure Rate Exmosure Rate MeV p~hotons/sec MeV/CM2/se-a MeV/CM2/sec mR/hr mR/hr No Bu ildup With Buildup No Buildup With Buildup 0.03 2.250e+08 8.586e-25 1.702e-24 8.509e-27 1.687e-26 0.04 1.377e+07 7.214e-14 2.615e-13 3.191e-16 1.156e-15 0.05 2.453e+05 2.922e-11 1.782e-10 7.783e-14 4.748e-13 0.06 7.243e+06 8.070e-08 7.539e-07 1.603e-10 1.497e-09 0.08 8.700e+07 4.718e-05 7.231e-04 7.466e-08 1.144e-06 0.1 5.959e+05 1.717e-06 3.467e-05 2.627e-09 5.304e-08 0.15 1.462e+07 2.782e-04 6.509e-03 4.582e-07 1.072e-05 0.2 1.875e+07 9.795e-04 2.112e-02 1.729e-06 3.727e-05 0.3 2.615e+08 4.874e-02 7.889e-01 9.245e-05 1.496e-03 0.4 2.590e+09 1.130e+00 1.391e+01 2.201e-03 2.709e-02 0.5 1.060e+08 8.739e-02 8.581e-01 1.715e-04 1.684e-03 0.6 2.006e+09 2.741e+00 2.230e+01 5.350e-03 4.353e-02 0.8 1.107e+09 3.267e+00 1.990e+01 6.214e-03 3.785e-02

.1.0 9.534e+07 5.000e-01 2.458e+00 9.217e-04 4.531e-03 1.5 9.881e+07 1.387e+00 4.801e+00 2.334e-03 8.077e-03 2.0 7.772e+05 2.066e-02 5.840e-02 3.194e-05 9.030e-05 3.0 2.487e+06 1.487e-01 3.316e-01 2.018e-04 4.499e-04 TOTALS: 6.637e+09 9.332e+00 6.543e+01 1.752e-02 1. 249e-01

Attachment 6 to PSL-ENG-SENS-044037, Rev. 0 MicroShield v5.05 (5.05-0000) Page 105 of 121 Grove Engineering Page  : 1 File Ref:

DOS File: SL1ENVO1.MS5 Date:

Run Date: March 11, 2003 By:

Run Time: 2:17:07 PM Checked:

Duration: 00:05:26 Case

Title:

slenvOl

Description:

St. Lucie Unit 1 LOCA (External Cloud to CR) - 30 min Geometry: 13 - Rectangular Volume Source Dimensions Length 1.Oe+5 cm 3281 ft 0.0 in Width 3.2e+3 cm 103 ft 8.4 in Height 3.2e+3 cm 103 ft 8.4 in Dose Points

x x X

1. ll.OOe+05 cm 1805.94 cm 1805.94 cm 3293 ft59 ft 3.0 in59 ft 3.0 in Shields Shield Name Dimension MaterialDpensity Source 3.53e+07 ft3 Air 0.00122 Shield 1 2.0 ftConcrete2.35 Air Gap Air 0.00122 source Input Grouping Method : Standard Indices Number of Groups : 25 Lower Energy Cutoff : 0.015 Photons < 0.015 : Excluded Library : Grove becouerels u~i/cm3 Bo/cm3 Ba-137m 2.0257e+000 7.4951e+010 2.0275e-006 7.5018e-002 Br-82 9.0999e-002 3.3670e+009 9.1081e-008 3.3700e-003 Br-83 1.0850e+000 4.0145e+010 1.0860e-006 4.0181e-002 Br-84 1.1047e+000 4.0875e+010 1.1057e-006 4.0911e-002 Cs-134 3.8949e+000 1.4411e+011 3.8984e-006 1.4424e-001 Cs-134m 7.7378e-001 2.8630e+010 7.7447e-007 2.8656e-002 Cs-136 1.0477e+000 3.8766e+010 1.0487e-006 3.8801e-002 Cs-137 1.9191e+000 7.1007e+010 1.9208e-006 7.1071e-002 Cs-138 3.3205e+001 1.2286e+012 3.3235e-005 1.2297e+000 1-130 6.5707e-001 2.4312e+010 6.5766e-007 2.4333e-002 I-131 1.1219e+001 4.1509e+011 1.1229e-005 4.1547e-001 1-132 1.4521e+001 5.3729e+011 1.4535e-005 5.3778e-001 1-133 2.1446e+001 7.9351e+011 2.1465e-005 7.9422e-001 1-134 1.7510e+001 6.4787e+011 1.7526e-005 6.4845e-001 I-135 1.9343e+001 7.1569e+011 1.9360e-005 7.1633e-001 Kr-83m 2.1201e+001 7.8443e+011 2.1220e-005 7.8513e-001 Kr-85 2.9316e+000 1.0847e+011 2.9342e-006 1.0857e-001 Kr-85m 4.1965e+001 1.5527e+012 4.2003e-005 1.5541e+000 Kr-87 6.5255e+001 2.4144e+012 6.5314e-005 2.4166e+000 Kr-88 1.0682e+002 3.9523e+012 1.0691e-004 3.9558e+000 Rb-86 3.5066e-002 1.2974e+009 3.5097e-008 1.2986e-003 Rb-88 4.0185e+001 1.4868e+012 4.0221e-005 1.4882e+000 Rb-89 2.2972e+000 8.4996e+010 2.2993e-006 8.5073e-002 Sr-89 7.3569e-004 2.7221e+007 7.3635e-010 2.7245e-005

?age 2 Attachment 6 to PSL-ENG-SENS-04-037, Rev. 0

)OS File: SL1ENV01.MS5 Page 106 of 121

.un Date: March 11, 2003 iun Time: 2:17:07 PM

)uration: 00:05:26 Nucl ide curies becquerels uCi/cm3 Ba/cm3 Xe-131m 2.1838e+000 8.0800e+010 2.1858e-006 8.0873e-002 Xe-133 3.7962e+002 1.4046e+013 3.7997e-004 1.4059e+001 Xe-133m 1.2115e+001 4.4825e+011 1.2126e-005 4.4865e-001 Xe-135 1.1921e+002 4.4107e+012 1.1932e-004 4.4147e+000 Xe-135m 5.7043e+001 2.1106e+012 5.7094e-005 2.1125e+000 Xe-138 6.8575e+001 2.5373e+012 6.8636e-005 2.5395e+000 Buildup The material reference is : Shield 1 Integration Parameters X Direction 30 y Direction 60 z Direction 60 Results Energy Activity Fluence Rate Fluence Rate Exoosure Rate Ex2osure Rate 1Mey photons/sec MeV/CM2/sec MeV/CM2/sec mR/hr mR/hr No Buildup With Buildup No Buildup With BuilduD 0.03 7.786e+12 1.397e-71 3.575e-24 1.384e-73 3.543e-26 0.04 4.921e+09 1.603e-38 5.993e-27 7.090e-41 2.650e-29 0.06 4.831e+09 1.044e-19 2.872e-18 2.073e-22 5.705e-21 0.08 5.168e+12 8.944e-12 4.987e-10 1.415e-14 7.892e-13 0.1 9.571e+09 1.778e-12 1.831e-10 2.721e-15 2.801e-13 0.15 1.521e+12 4.169e-08 7.264e-06 6.866e-11 1.196e-08 0.2 5.219e+12 1.812e-06 3.318e-04 3.198e-09 5.856e-07 0.3 1.144e+12 8.987e-06 1.179e-03 1.705e-08 2.237e-06 0.4 2.632e+12 1.618e-04 1.433e-02 3.153e-07 2.792e-05 0.5 3.272e+12 9.288e-04 5.823e-02 1.823e-06 1.143e-04 0.6 1.444e+12 1.366e-03 6.381e-02 2.667e-06 1.245e-04 0.8 3.071e+12 1.799e-02 5.278e-01 3.421e-05 1.004e-03 1.0 1.783e+12 4.013e-02 8.311e-01 7.397e-05 1.532e-03 1.5 2.414e+12 5.238e-01 6.053e+00 8.812e-04 1.018e-02 2.0 4.230e+12 3.812e+00 3.098e+01 5.895e-03 4.790e-02 3.0 5.273e+11 2.682e+00 1.420e+01 3.639e-03 1.927e-02 4.0. 3.902e+09 5.612e-02 2.289e-01 6.943e-05 2.831e-04 5.0 2.132e+09 6.195e-02 2.100e-01 7.102e-05 2.407e-04 TOTALS: 4'. 024e+13 7.197e+00 5.317e+01 1.067e-02 8.069e-02

Attachment 6 to PSL-ENG-SENS-04-037, Rev. 0 MicroShield v5.05 (5.05-0000) Page 107 of 121 Grove Engineering Page  : 1 File Ref:

DOS File: SL1ENVO2.MS5 Date:

Run Date: March 11, 2003 By:

Run Time: 2:24:46 PM Checked:

Duration: 00:06:28 Case

Title:

sllenv02

Description:

St. Lucie Unit . LOCA (External Cloud to CR) - 2 h Geometry: 13 - Rectangular Volume Source Dimensions Length l.Oe+5 cm 3281 ft 0.0 in Width 3.2e+3 cm 103 ft 8.4 in Height 3.2e+3 cm 103 ft 8.4 in Dose Points

1. l1.OOe+05 cm 1805.94 cm 1805.94 cm 3293 ft59 ft 3.0 in59 ft 3.0 in Shields Shield Name Dimension Material Density Source 3.53e+07 ft3 Air 0.00122 Shield 1 2.0 ftConcrete2.35 Air Gap Air 0.00122 Source Input Grouping Method : Standard Indices Number of Groups : 25 Lower Energy Cutoff : 0.015 Photons < 0.015 : Excluded Library : Grove Nuclide curies becauerels UCi/CM3 Am-241 2.1478e-005 7.9469e+005 2.1497e-011 7.9540e-007 Am-242 9.5240e-003 3.5239e+008 9.5326e-009 3.5271e-004 Ba-137m 2.1976e+001 8.1309e+011 2.1995e-005 8.1383e-001 Ba-139 4.7690e+000 1.7645e+011 4.7733e-006 1.7661e-001 Ba-140 1.2493e+001 4.6224e+011 1.2504e-005 4.6266e-001 Ba-141 1.2448e-001 4.6058e+009 1.2459e-007 4.6099e-003 Br-82 1.2060e+000 4.4622e+010 1.2071e-006 4.4663e-002 Br-83 9.6067e+000 3.5545e+011 9.6154e-006 3.5577e-001 Br-84 2.1431e+000 7.9294e+010 2.1450e-006 7.9365e-002 Ce-141 3.0115e-001 1.1142e+010 3.0142e-007 1.1153e-002 Ce-143 2.6342e-001 9.7464e+009 2.6365e-007 9.7551e-003 Ce-144 2.5297e-001 9.3597e+009 2.5319e-007 9.3681e-003 Cm-242 6.9816e-003 2.5832e+008 6.9879e-009 2.5855e-004 Cm-244 1.0505e-003 3.8867e+007 1.0514e-009 3.8902e-005 Co-58 1.4675e-004 5.4298e+006 1.4688e-010 5.4346e-006 Co-60 1.6358e-005 6.0525e+005 1.6373e-0ll 6.0579e-007 Cs-134 4.0320e+001 1.4919e+012 4.0357e-005 1.4932e+000 Cs-134m 5.6078e+000 2.0749e+011 5.6128e-006 2.0768e-001 Cs-136 1.0811e+001 4.0002e+011 1.0821e-005 4.0038e-001 Cs-137 1.9876e+001 7.3541e+011 1.9894e-005 7.3607e-001 Cs-138 1.3146e+002 4.8640e+012 1.3158e-004 4.8684e+000 Eu-154 1.6021e-003 5.9278e+007 1.6036e-009 5.9332e-005 Eu-155 1.0853e-003 4.0158e+007 1.0863e-009 4.0194e-005 Eu-156 2.8293e-002 1.0468e+009 2.8319e-008 1.0478e-003

Page 2 Attachment 6 to PSL-ENG-SENS-04-037, Rev. 0 DOS File: SL1ENVO2.MS5 Page 108 of 121 Run Date: March 11, 2003 Run Time: 2:24:46 PM Duration: 00:06:28 Nuceid curies becauerala UxCi /CM~3 I-130 8.2504e+000 3.0527e+011 8.2579e-006 3.0554e-001 1-131 1.5256e+002 5.6448e+012 1.5270e-004 5.6499e+000 1-132 1.6290e+002 6.0275e+012 1.6305e-004 6.0329e+000 1-133 2.8103e+002 1. 0398e+013 2.8129e-004 1.0408e+001 I-134 1.0125e+002 3.7462e+012 1.0134e-004 3.7496e+000 I-135 2.2584e+002 8.3560e+012 2.2604e-004 8.3635e+000 Kr-83m 1.1116e+003 4.1129e+013 1.1126e-003 4.1166e+001 Kr-85 2.1307e+002 7.8836e+012 2.1326e-004 7.8907e+000 Kr-85m 2.3931e+003 8.8546e+013 2.3953e-003 8.8626e+001 Kr-87 2.0767e+003 7.6837e+013 2.0785e-003 7.6906e+001 Kr-88 5.3288e+003 1.9716e+014 5.3336e-003 1.9734e+002 La-140 3.1973e-001 1.1830e+010 3.2002e-007 1.1841e-002 La-141 1.6839e-001 6.2303e+009 1.6854e-007 6.2359e-003 La-142 4.6517e-002 1.7211e+009 4.6559e-008 1.7227e-003 Mo-99 1.7783e+000 6.5795e+010 1.7799e-006 6.5855e-002 Nb-95 1.2170e-001 4.5030e+009 1.2181e-007 4.5070e-003 Nb-95m 8.5826e-004 3.1756e+007 8.5903e-010 3.1784e-005 Nb-97 4.2519e-002 1.5732e+009 4.2557e-008 1.5746e-003 Nd-147 4.7722e-002 1.7657e+009 4.7765e-008 1.7673e-003 Np-238 1.3102e-001 4.8479e+009 1.3114e-007 4.8522e-003 Np-239 4.7697e+000 1.7648e+011 4.7740e-006 1.7664e-001 Pd-109 4.2411e-001 1.5692e+010 4.2449e-007 1.5706e-002 Pm-147 1.1843e-002 4.3819e+008 1.1854e-008 4.3859e-004 Pm-148 2.1911e-002 8.1069e+008 2.1930e-008 8.1142e-004 Pm-148m 2.8322e-003 1.0479e+008 2.8347e-009 1.0488e-004 Pm-149 4.5930e-002 1.6994e+009 4.5972e-008 1.7010e-003 Pm-151 1.6018e-002 5.9267e+008 1.6032e-008 5.9320e-004 Pr-143 1.0902e-001 4.0338e+009 1.0912e-007 4.0374e-003 Pr-144 2.3252e-001 8.6032e+009 2.3273e-007 8.6110e-003 Pr-144m 4.6651e-003 1.7261e+008 4.6693e-009 1.7277e-004 Pu-238 1.3657e-003 5.0531e+007 1.3669e-009 5.0576e-005 Pu-239 9.5501e-005 3.5335e+006 9.5587e-011 3.5367e-006 Pu-240 1.6101e-004 5.9574e+006 1.6116e-010 5.9628e-006 Pu-241 4.0551e-002 1.5004e+009 4.0588e-008 1.5017e-003 Pu-243 1.1393e-001 4.2156e+009 1.1404e-007 4.2194e-003 Rb-86 3.6215e-001 1.3400e+010 3.6248e-007 1.3412e-002 Rb-88 3.6538e+003 1.3519e+014 3.6571e-003 1.3531e+002 Rb-89 4.0151e-001 1.4856e+010 4.0187e-007 1.4869e-002 Rh-103m 1.6132e+000 5.9688e+010 1.6146e-006 5.9741e-002 Rh-105 1.1571e+000 4.2811e+010 1.1581e-006 4.2850e-002 Rh-106 1.6821e+000 6.2238e+010 1.6836e-006 6.2294e-002 Ru-103 1.6437e+000 6.0818e+010 1.6452e-006 6.0872e-002 Ru-105 9.2168e-001 3.4102e+010 9.2251e-007 3.4133e-002 Ru-106 8.1790e-001 3.0262e+010 8.1864e-007 3.0290e-002 Sb-124 5.3743e-002 1.9885e+009 5.3791e-008 1.9903e-003 Sb-125 4.4813e-001 1.6581e+010 4.4854e-007 1.6596e-002 Sb-126 3.0881e-002 1.1426e+009 3.0908e-008 1.1436e-003 Sb-127 2.3607e+000 8.7347e+010 2.3629e-006 8.7426e-002 Sb-129 4.8454e+000 1.7928e+011 4.8498e-006 1.7944e-001 Sm-153 4.9253e-002 1.8224e+009 4.9297e-008 1.8240e-003 Sr-89 6.4616e+000 2.3908e+011 6.4674e-006 2.3929e-001 Sr-90 9.2307e-001 3.4154e+010 9.2390e-007 3.4184e-002 Sr-91 6.9876e+000 2.5854e+011 6.9939e-006 2.5877e-001

Page 3 Attachment 6 to PSL-ENG-SENS-04-037, Rev. 0

)OS File: SL1ENVO2.MS5 Page 109 of 121 lun Date: March 11, 2003 Run Time: 2:24:46 PM

)uration: 00:06:28 Nuclide curies becauerela UCi/CM3 Ba/cm3 Sr-92 5.3125e+000 1.9656e+011 5.3173e-006 1.9674e-001 Tc-99m 1.5423e+000 5.7066e+010 1.5437e-006 5.7118e-002 Tc-101 4.6084e-003 1.7051e+008 4.6125e-009 1.7066e-004 Te-125m 9.8440e-002 3.6423e+009 9.8529e-008 3.6456e-003 Te-127 2.3663e+000 8.7554e+010 2.3685e-006 8.7633e-002 Te-127m 3.2277e-001 1.1942e+010 3.2306e-007 1.1953e-002 Te-129 5.4472e+000 2.0154e+011 5.4521e-006 2.0173e-001 Te-129m 9.8065e-001 3.6284e+010 9.8154e-007 3.6317e-002 Te-131 1.2100e+000 4.4771e+010 1.2111e-006 4.4811e-002 Te-131m 2.7409e+000 1.0141e+011 2.7434e-006 1.0151e-001 Te-132 2.6300e+001 9.7311e+011 2.6324e-005 9.7399e-001 Te-133 5.3181e-001 1.9677e+010 5.3229e-007 1.9695e-002 Te-133m 2.9269e+000 1.0830e+011 2.9295e-006 1.0839e-001 Te-134 4.0505e+000 1.4987e+011 4.0542e-006 1.5000e-001 Xe-131m 1.6102e+002 5.9576e+012 1.6116e-004 5.9630e+000 Xe-133 2.7692e+004 1.0246e+015 2.7716e-002 1.0255e+003 Xe-133m 8.6000e+002 3.1820e+013 8.6077e-004 3.1849e+001 Xe-135 9.0271e+003 3.3400e+014 9.0352e-003 3.3430e+002 Xe-135m 1.0479e+003 3.8771e+013 1.0488e-003 3.8806e+001 Xe-138 6.1729e+001 2.2840e+012 6.1784e-005 2.2860e+000 Y-90 1.8392e-002 6.8051e+008 1.8409e-008 6.8112e-004 Y-91 9.0049e-002 3.3318e+009 9.0130e-008 3.3348e-003 Y-91m 2.1433e+000 7.9300e+010 2.1452e-006 7.9372e-002 Y-92 1.0351e+000 3.8299e+010 1.0361e-006 3.8334e-002 Y-93 9.0965e-002 3.3657e+009 9.1047e-008 3.3687e-003 Zr-95 1.2021e-001 4.4479e+009 1.2032e-007 4.4519e-003 Zr-97 1.1093e-001 4.1043e+009 1.1103e-007 4.1080e-003 Buildup The material reference is : Shield 1 Integration Parameters X Direction 30 y Direction 60 z Direction 60 Results Eneray Activity Fluence Rate Fluence Rate Exposure Rate Ex2osure Rate MeV photons/sec MeV/CM2/sec MeV/Cm2iLA mR/hr mR/hr N~o Buildup With Buildup No Buildup With Buildun 0.015 3.799e+08 0.OOOe+00 5.014e-29 0.OOOe+00 4.300e-30 0.02 1.173e+10 8.508e-223 2.435e-27 2.947e-224 8.436e-29 0.03 5.405e+14 9.698e-70 2.482e-22 9.612e-72 2.460e-24 0.04 5.167e+10 1.683e-37 6.292e-26 7.445e-40 2.783e-28 0.05 1.283e+11 4.059e-24 4.156e-23 1.081e-26 1.107e-25 0.06 5.438e+10 1.175e-18 3.233e-17 2.333e-21 6.422e-20 0.08 3.762e+14 6.51le-10 3.631e-08 1.030e-12 5.745e-11 0.1 5.820e+11 1.081e-10 1.113e-08 1.655e-13 1.703e-11 0.15 7.478e+13 2.050e-06 3.572e-04 3.376e-09 5.882e-07 0.2 3.576e+14 1.242e-04 2.273e-02 2.191e-07 4.012e-05 0.3 1.497e+13 1.176e-04 1.543e-02 2.231e-07 2.928e-05

Page 4 Attachment 6 to PSL-ENG-SENS-04-037, Rev. 0 DOS File: SL1ENV02.MS5 Page 110 of 121 Run Date: March 11, 2003 Run Time: 2:24:46 PM

)uration: 00:06:28 Enerov Activity Fluence Rate Fluence Rate Exposure Rate Exposure Rate MeV photons/sec MeV/CM2/sec MeV/CM2/sec mR/hr mR/hr No Buildug With Buildup No-Buildup With Buildup 0.4 5.275e+13 3.243e-03 2.872e-01 6.320e-06 5.596e-04 0.5 4.739e+13 1.345e-02 8.434e-01 2.641e-05 1.655e-03 0.6 2.512e+13 2.377e-02 1.llOe+00 4.640e-05 2.167e-03 0.8 7.059e+13 4.134e-01 1.213e+01 7.864e-04 2.308e-02 1.0 2.604e+13 5.860e-01 1.214e+01 1.080e-03 2.237e-02 1.5 4.986e+13 1.082e+01 1.250e+02 1.821e-02 2.104e-01 2.0 1.555e+14 1.402e+02 1.139e+03 2.167e-01 1.761e+00 3.0 1.652e+13 8.402e+01 4.450e+02 1.140e-01 6.037e-01 4.0 5.891e+09 8.474e-02 3.455e-01 1.048e-04 4.275e-04 5.0 1.938e+11 5.633e+00 1.909e+01 6.458e-03 2.189e-02 TOTALS: 1.809e+15 2.417e+02 1.755e+03 3.574e-01 2.647e+00

MicroShield v5.05 (5.05-0000) Attachment 6 to PSL-ENG-SENS-04-037. Rev. 0 Page 111 of 121 Grove Engineering Page  : 1 File Ref:

)OS File: SL1ENV03.MS5 Date:

Run Date: March 11, 2003 By:

Run Time: 2:34:11 PM Checked:

Duration: 00:06:28 Case

Title:

sllenvO3

Description:

St. Lucie Unit . LOCA (External Cloud to CR) - 8 h Geometry: 13 - Rectangular Volume Source Dimensions Length 1.Oe+5 cm 3281 ft 0.0 in Width 3.2e+3 cm 103 ft 8.4 in Height 3.2e+3 cm 103 ft 8.4 in Dose Points

1. 11.OOe+05 cm 1805.94 cm 1805.94 cm 3293 ft59 ft 3.0 in59 ft 3.0 in Shields Shield Name Dimension Materialpensity Source 3.53e+07 ft3 Air 0.00122 Shield 1 2.0 ftConcrete2.35 Air Gap Air 0.00122 Source Input Grouping Method : Standard Indices Number of Groups : 25 Lower Energy Cutoff s 0.015 Photons < 0.015 : Excluded Library s Grove Nuclide .Curies becquerels UCi/cm! Bg/M Am-241 3.0559e-005 1.1307e+006 3.0587e-011 1.1317e-006 Am-242 1.0431e-002 3.8595e+008 1.0441e-008 3.8630e-004 Ba-137m 2.9671e+001 1.0978e+012 2.9698e-005 1.0988e+000 Ba-139 3.3134e-001 1.2260e+010 3.3164e-007 1.2271e-002 Ba-140 1.7499ei001 6.4747e+011 1.7515e-005 6.4805e-001 Br-82 1.5132e+000 5.5988e+010 1.5146e-006 5.6039e-002 Br-83 2.3800e+000 8.8061e+010 2.3822e-006 8.8141e-002 Br-84 1.1827e-003 4.3761e+007 1.1838e-009 4.3801e-005 Ce-141 4.2610e-001 1.5766e+010 4.2648e-007 1.5780e-002 Ce-143 3.2976e-001 1.2201e+010 3.3005e-007 1.2212e-002 Ce-144 3.5878e-001 1.3275e+010 3.5910e-007 1.3287e-002 Cm-242 9.9130e-003 3.6678e+008 9.9220e-009 3.6711e-004 Cm-244 1.4915e-003 5.5186e+007 1.4929e-009 5.5236e-005 Cs-134 5.4310e+001 2.0095e+012 5.4359e-005 2.0113e+000 Cs-134m 1.8008e+000 6.6629e+010 1.8024e-006 6.6689e-002 Cs-136 1.4374e+001 5.3185e+011 1.4387e-005 5.3232e-001 Cs-137 2.6766e+001 9.9034e+011 2.6790e-005 9.9123e-001 Cs-138 1.0120e-001 3.7444e+009 1.0129e-007 3.7478e-003 Eu-154 2.2747e-003 8.4165e+007 2.2768e-009 8.4241e-005 Eu-155 1.5410e-003 5.7016e+007 1.5423e-009 5.7067e-005 Eu-156 3.9718e-002 1.4696e+009 3.9754e-008 1.4709e-003 I-130 8.3487e+000 3.0890e+011 8.3562e-006 3.0918e-001 I-131 2.1154e+002 7.8268e+012 2.1173e-004 7.8339e+000 1-132 4.1123e+001 1.5215e+012 4.1160e-005 1.5229e+000

page 2

)OS File: SL1ENV03.MS5 Attachment 6 to PSL-ENG-SENS-04-037, Rev. 0 Page 112 of 121 Run Date: March 11, 2003 Run Time: 2:34:11 PM

)uration: 00:06:28 Nualide curies becouerels uCi/cm3 Ba/c~m3 I-133 3.2628e+002 1.2072e+013 3.2657e-004 1.2083e+001 I-134 1.3176e+000 4.8750e+010 1.3188e-006 4.8794e-002 I-135 1.7053e+002 6.3097e+012 1.7069e-004 6.3154e+000 Kr-83m 1.3319e+003 4.9281e+013 1.3331e-003 4.9325e+001 Kr-85 1.6537e+003 6.1187e+013 1.6552e-003 6.1243e+001 Kr-85m 7.4160e+003 2.7439e+014 7.4227e-003 2.7464e+002 Kr-87 6.1916e+002 2.2909e+013 6.1972e-004 2.2930e+001 Kr-88 9.6651e+003 3.5761e+014 9.6738e-003 3.5793e+002 La-140 2.1124e+000 7.8158e+010 2.1143e-006 7.8229e-002 La-141 8.1863e-002 3.0289e+009 8.1937e-008 3.0317e-003 La-142 4.4493e-003 1.6462e+008 4.4533e-009 1.6477e-004 Mo-99 2.2872e+000 8.4627e+010 2.2893e-006 8.4703e-002 Nb-95 1.7279e-001 6.3934e+009 1.7295e-007 6.3991e-003 Nb-95m 1.2175e-003 4.5046e+007 1.2185e-009 4.5086e-005 Nb-97 8.6788e-003 3.2112e+008 8.6867e-009 3.2141e-004 Nd-147 6.6700e-002 2.4679e+009 6.6760e-008 2.4701e-003 Np-238 1.7143e-001 6.3427e+009 1.7158e-007 6.3484e-003 Np-239 6.2921e+000 2.3281e+011 6.2977e-006 2.3302e-001 Pd-109 4.4180e-001 1.6346e+010 4.4220e-007 1.6361e-002 Pm-147 1.6825e-002 6.2254e+008 1.6841e-008 6.2310e-004 Pm-148 3.0129e-002 1.1148e+009 3.0156e-008 1.1158e-003 Pm-148m 4.0045e-003 1.4817e+008 4.0082e-009 1.4830e-004 Pm-149 6.0303e-002 2.2312e+009 6.0357e-008 2.2332e-003 Pm-151 1.9646e-002 7.2689e+008 1.9664e-008 7.2755e-004 Pr-143 1.5700e-001 5.8088e+009 1.5714e-007 5.8141e-003 Pr-144 3.6750e-001 1.3598e+010 3.6783e-007 1.3610e-002 Pr-144m 6.7625e-003 2.5021e+008 6.7686e-009 2.5044e-004 Pu-238 1.9402e-003 7.1787e+007 1.9419e-009 7.1851e-005 Pu-239 1.3573e-004 5.0219e+006 1.3585e-010 5.0264e-006 Pu-240 2.2862e-004 8.4590e+006 2.2883e-010 8.4666e-006 Pu-241 5.7577e-002 2.1304e+009 5.7629e-008 2.1323e-003 Pu-243 6.9900e-002 2.5863e+009 6.9963e-008 2.5886e-003 Rb-86 4.8345e-001 1.7888e+010 4.8389e-007 1. 7904e-002 Rb-88 1.0360e+004 3.8331e+014 1.0369e-002 3.8365e+002 Rh-103m 2.3354e+000 8.6408e+010 2.3375e-006 8.6486e-002 Rh-105 1.5540e+000 5.7497e+010 1.5554e-006 5.7549e-002 Rh-106 2.3873e+000 8.8330e+010 2.3895e-006 8.8410e-002 Ru-103 2.3235e+000 8.5971e+010 2.3256e-006 8.6048e-002 Ru-105 5.1291e-001 1.8978e+010 5.1337e-007 1.8995e-002 Ru-106 1.1608e+000 4.2949e+010 1.1618e-006 4.2988e-002 Sb-124 7.6091e-002 2.8154e+009 7.6159e-008 2.8179e-003 Sb-125 6.3621e-001 2.3540e+010 6.3678e-007 2.3561e-002 Sb-126 4.3239e-002 1.5998e+009 4.3278e-008 1.6013e-003 Sb-127 3.2046e+000 1.1857e+011 3.2074e-006 1.1868e-001 Sb-129 2.6272e+000 9.7208e+010 2.6296e-006 9.7296e-002 Sm-153 6.3976e-002 2.3671e+009 6.4034e-008 2.3693e-003 Sr-89 9.1422e+000 3.3826e4 011 9.1505e-006 3.3857e-001 Sr-90 1.3107e+000 4.8494e+010 1.3118e-006 4.8538e-002 Sr-91 6.4042e+000 2.3696e+011 6.4100e-006 2.3717e-001 Sr-92 1.6259e+000 6.0157e+010 1.6273e-006 6.0211e-002 Tc-99m 2.1185e+000 7.8385e+010 2.1204e-006 7.8456e-002 Te-125m 1.3980e-001 5.1725e+009 1.3992e-007 5.1772e-003 Te-127 3.2832e+000 1.2148e+011 3.2862e-006 1.2159e-001

?age 3 Attachment 6 to PSL-ENG-SENS-04-037. Rev. 0

)OS File: SLlENVO3.MS5 Page 113 of 121 run Date: March 11, 2003 kun Time: 2:34:11 PM Duration: 00:06:28 Nuc-ide curies kecauerels UCiLCM3 Te-127m 4.5849e-001 1.6964e+010 4.5891e-007 1.6979e-002 Te-129 3.6958e+000 1.3674e+O11 3.6991e-006 1.3687e-001 Te-129m 1.3904e+000 5.1446e+010 1.3917e-006 5.1492e-002 Te-131 7.7554e-001 2.8695e+010 7.7624e-007 2.8721e-002 Te-131m 3.3880e+000 1.2536e+011 3.3911e-006 1.2547e-001 Te-132 3.5396e+001 1.3096e+012 3.5428e-005 1.3108e+000 Te-133 7.9701e-003 2.9489e+008 7.9773e-009 2.9516e-004 Te-133m 4.5974e-002 1.7010e+009 4.6015e-008 1.7026e-003 Te-134 1.4695e-002 5.4372e+008 1.4708e-008 5.4421e-004 Xe-13lm 1.2185e+003 4.5085e+013 1.2196e-003 4.5126e+001 Xe-133 2.0818e+005 7.7027e+015 2.0837e-001 7.7096e+003 Xe-133m 6.3331e+003 2.3432e+014 6.3388e-003 2.3454e+002 Xe-135 5.5262e+004 2.0447e+015 5.5312e-002 2.0465e+003 Xe-135m 6.8143e+002 2.5213e+013 6.8205e-004 2.5236e+001 Xe-138 1.0902e-005 4.0337e+005 1.0912e-O11 4.0373e-007 Y-90 1.0570e-001 3.9110e+009 1.0580e-007 3.9145e-003 Y-91 1.4521e-001 5.3728e+009 1.4534e-007 5.3777e-003 Y-91m 4.0659e+000 1.5044e+011 4.0696e-006 1.5057e-001 Y-92 2.7124e+000 1.0036e+011 2.7148e-006 1.0045e-001 Y-93 8.5566e-002 3.1660e+009 8.5643e-008 3.1688e-003 Zr-95 1.7023e-001 6.2986e+009 1.7039e-007 6.3043e-003 Zr-97 1.2315e-001 4.5564e+009 1.2326e-007 4.5605e-003 Buildup The material reference is : Shield I Integration Parameters X Direction 30 Y Direction 60 Z Direction 60 Results Enerovy Activity Fluence Rate Fluence Rate Exoosure Rate ExDosure Rate MeV photons.sec MeV/cm2 /sec MeV/cm 2 /sec mR/hr mR/hr No Buildup With Buildup No Buildup With Buildup 0.015 7.077e+08 0.OOOe+00 9.340e-29 0.OOOe+00 8.011e-30 0.02 1.612e+10 1.169e-222 3.347e-27 4.051e-224 1.159e-28 0.03 3.968e+15 7.119e-69 1.822e-21 7.055e-71 1.806e-23 0.04 5.484e+10 1.786e-37 6.678e-26 7.901e-40 2.953e-28 0.05 1.727e+11 5.463e-24 5.593e-23 1.455e-26 1.490e-25 0.06 7..223e+10 1.560e-18 4.294e-17 3.099e-21 8.528e-20 0.08 2.827e+15 4.893e-09 2.728e-07 7.743e-12 4.317e-10 0.1 9.385e+11 1.744e-10 1.795e-08 2.668e-13 2.747e-11 0.15 2.255e+14 6.182e-06 1.077e-03 1.018e-08 1.774e-06 0.2 1.963e+15 6.817e-04 1.248e-01 1.203e-06 2.203e-04 0.3 4.061ei13 3.190e-04 4.186e-02 6.052e-07 7.941e-05 0.4 4.093e+13 2.516e-03 2.228e-01 4.903e-06 4.342e-04 0.5 3.560e+13 l.OlOe-02 6.335e-01 1.983e-05 1.243e-03 0.6 7.166e+13 6.781e-02 3.167e+00 1.323e-04 6.182e-03 0.8 1.136e+14 6.655e-01 1.953e+01 1.266e-03 3.715e-02 1.0 3.269e+13 7.356e-01 1.523e+01 1.356e-03 2.808e-02

?age  : 4 Attachment 6 to PSL-ENG-SENS-04-037. Rev. 0

)OS File: SLlENVO3.MS5 Page 114 of 121 Run Date: March 11, 2003 Run Time: 2:34:11 PM

)uration: 00:06:28 Eneroy Activity Fluence Rate Fluence Rate Exposure Rate Exposure Rate MeV photons/s MeV/CM2LL-J MeV/CM2/sec mR/hr mR/hr No Buildup With Buildup No Buildu With Buildup 1.5 7.215e+13 1.566e+01 1.809e+02 2.634e-02 3.044e-01 2.0 3.038e+14 2.739e+02 2.225e+03 4.235e-01 3.441e+00 3.0 1.683e+13 8.563e+01 4.535e+02 1.162e-01 6.153e-01 4.0 7.453e+06 1.072e-04 4.372e-04 1.326e-07 5.409e-07 5.0 5.496e+11 1.597e+01 5.413e+01 1.831e-02 6.205e-02 TOTALS: 9.713e+15 3.926e+02 2.953e+03 5.871e-01 4.496e+00

Attachment 6 to PSL-ENG-SENS-04-037. Rev. 0 MicroShield v5.05 (5.05-0000) Page 115 of 121 Grove Engineering Page  : 1 File Ref:

DOS File: SL1ENV04.MS5 Date:

Run Date: March 11, 2003 By:

Run Time: 2:42:39 PM Checked:

Duration: 00:06:12 Case

Title:

sllenvO4

Description:

St. Lucie Unit 1 LOCA (External Cloud to CR) - 24 h Geometry: 13 - Rectangular Volume Source Dimensions Length l.Oe+5 cm 3281 ft 0.0 in Width 3.2e+3 cm r 103 ft 8.4 in Height 3.2e+3 cm 103 ft 8.4 in Dose Points X X ;z

1. 11.OOe+05 cm 1805.94 cm 1805.94 cm 3293 ft59 ft 3.0 in59 ft 3.0 in Shields Shield Name Dimension Material Density Source 3.53e+07 ft3 Air 0.00122 Shield 1 2.0 ftConcrete2.35 Air Gap Air 0.00122 Source Input Grouping Method : Standard Indices Number of Groups : 25 Lower Energy Cutoff : 0.015 Photons < 0.015 : Excluded Library : Grove Nuclide curies becauereja uCi/cm3 BaJCM3 Am-241 3.1224e-005 1.1553e+006 3.1252e-011 1.1563e-006 Am-242 5.3044e-003 1.9626e+008 5.3091e-009 1.9644e-004 Ba-137m 3.0088e+001 1.1132e+012 3.0115e-005 1.1142e+000 Ba-140 1.7148e+001 6.3448e+011 1.7163e-005 6.3505e-001 Br-82 1.2369e+000 4.5763e+010 1.2380e-006 4.5805e-002 Br-83 2.5715e-002 9.5144e+008 2.5738e-008 9.5230e-004 Ce-141 4.2725e-001 1.5808e+010 4.2763e-007 1.5822e-002 Ce-143 2.3944e-001 8.8594e+009 2.3966e-007 8.8673e-003 Ce-144 3.6399e-001 1.3468e+010 3.6432e-007 1.3480e-002 Cm-242 1.0062e-002 3.7231e+008 1.0071e-008 3.7264e-004 Cm-244 1.5155e-003 5.6072e+007 1.5168e-009 5.6123e-005 Cs-134 5.5042e+001 2.0365e+012 5.5091e-005 2.0384e+000 Cs-134m 3.9873e-002 1.4753e+009 3.9909e-008 1.4766e-003 Cs-136 1.4071e+001 5.2064e+011 1.4084e-005 5.2111e-001 Cs-137 2.7142e+001 1.0043e+012 2.7167e-005 1.0052e+000 Eu-154 2.3111e-003 8.5509e+007 2.3131e-009 8.5586e-005 Eu-155 1.5654e-003 5.7918e+007 1.5668e-009 5.7971e-005 Eu-156 3.9150e-002 1.4486e+009 3.9186e-008 1.4499e-003 I-130 - 3.9382e+000 1.4571e+011 3.9418e-006 1.4584e-001 I-131 2.3111e+002 8.5510e+012 2.3132e-004 8.5587e+000 I-132 4.4332e-001 1.6403e+010 4.4372e-007 1.6417e-002 I-133 2.2155e+002 8.1974e+012 2.2175e-004 8.2048e+000 1-135 3.6855e+001 1.3637e+012 3.6889e-005 1.3649e+000 Kr-83m 2.7360e+001 1.0123e+012 2.7384e-005 1.0132e+000

Page 2

)OS File: Attachment 6 to PSL-ENG-SENS-04-037, Rev. 0 SL1ENVO4 .MS5 Page 116 of 121 kun Date: March 11, 2003 iun Time: 2:42:39 PM Duration: 00:06:12 Nuclide curies becouerels uci /cm3 Ba/cm3 Kr-85 5.4848e+003 2.0294e+014 5.4897e-003 2.0312e+002 Kr-85m 2.0723e+003 7.6675e+013 2.0742e-003 7.6744e+001 Kr-87 3.3553e-001 1.2414e+010 3.3583e-007 1.2426e-002 Kr-88 6.4667e+002 2.3927e+013 6.4725e-004 2.3948e+001 La-140 5.8299e+000 2.1571e+011 5.8352e-006 2.1590e-001 La-141 4.5104e-003 1.6688e+008 4.5145e-009 1.6704e-004 Mo-99 1.9647e+000 7.2693e+010 1.9665e-006 7.2759e-002 Nb-95 1.7554e-001 6.4949e+009 1.7570e-007 6.5008e-003 Nb-95m 1.2334e-003 4.5637e+007 1.2345e-009 4.5678e-005 Nd-147 6.4983e-002 2.4044e+009 6.5041e-008 2.4065e-003 Np-238 1.4003e-001 5.1810e+009 1.4015e-007 5.1857e-003 Np-239 5.2545e+000 1.9442e+011 5.2592e-006 1.9459e-001 Pd-109 1.9654e-001 7.2721e+009 1.9672e-007 7.2787e-003 Pm-147 1.7121e-002 6.3347e+008 1.7136e-008 6.3404e-004 Pm-148 2.8106e-002 1.0399e+009 2.8131e-008 1.0409e-003 Pm-148m 4.0239e-003 1.4888e+008 4.0275e-009 1.4902e-004 Pm-149 4.9722e-002 1.8397e+009 4.9767e-008 1.8414e-003 Pm-151 1.3509e-002 4.9984e+008 1.3521e-008 5.0029e-004 Pr-143 1.6370e-001 6.0570e+009 1.6385e-007 6.0624e-003 Pr-144 3.7282e-001 1.3794e+010 3.7315e-007 1.3807e-002 Pu-238 1.9739e-003 7.3033e+007 1.9756e-009 7.3099e-005 Pu-239 1.3822e-004 5.1142e+006 1.3835e-010 5.1188e-006 Pu-240 2.3231e-004 8.5954e+006 2.3252e-010 8.6032e-006 Pu-241 5.8501e-002 2.1645e+009 5.8553e-008 2.1665e-003 Pu-243 6.9270e-003 2.5630e+008 6.9332e-009 2.5653e-004 Rb-86 4.7827e-001 1.7696e+010 4.7870e-007 1.7712e-002 Rb-88 7.2532e+002 2.6837e+013 7.2597e-004 2.6861e+001 Rh-103m 2.3460e+000 8.6801e+010 2.3481e-006 8.6879e-002 Rh-105 1.2025e+000 4.4491e+010 1.2036e-006 4.4532e-002 Rh-106 2.2145e+000 8.1937e+010 2.2165e-006 8.2010e-002 Ru-103 2.3334e+000 8.6335e+010 2.3355e-006 8.6413e-002 Ru-105 4.2875e-002 1.5864e+009 4.2913e-008 1.5878e-003 Ru-106 1.1781e+000 4.3588e+010 1.1791e-006 4.3628e-002 Sb-124 7.6727e-002 2.8389e+009 7.6797e-008 2.8415e-003 Sb-125 6.4617e-001 2.3908e+010 6.4676e-007 2.3930e-002 Sb-126 4.2330e-002 1.5662e+009 4.2368e-008 1.5676e-003 Sb-127 2.8879e+000 1.0685e+011 2.8905e-006 1.0695e-001 Sb-129 2.0489e-001 7.5810e+009 2.0508e-007 7.5878e-003 Sm-153 5.1267e-002 1.8969e+009 5.1313e-008 1.8986e-003 Sr-89 9.2050e+000 3.4058e+011 9.2133e-006 3.4089e-001 Sr-90 1.3318e+000 4.9275e+010 1.3330e-006 4.9320e-002 Sr-91 2.0250e+000 7.4924e+010 2.0268e-006 7.4991e-002 Sr-92 2.5217e-002 9.3303e+008 2.5240e-008 9.3387e-004 Tc-99m 1.8816e+000 6.9621e+010 1.8833e-006 6.9683e-002 Te-125m 1.4209e-001 5.2575e+009 1.4222e-007 5.2622e-003 Te-127 3.0723e+000 1.1367e+011 3.0751e-006 1.1378e-001 Te-127m 4.6620e-001 1.7250e+010 4.6662e-007 1.7265e-002 Te-129 1.1328e+000 4.1913e+010 1.1338e-006 4.1950e-002 Te-129m 1.3964e+000 5.1668e+010 1.3977e-006 5.1715e-002 Te-131 5.4448e-001 2.0146e+010 5.4497e-007 2.0164e-002 Te-13lm 2.3788e+000 8.8015e+010 2.3809e-006 8.8094e-002 Te-132 3.1212e+001 1.1548e+012 3.1240e-005 1.1559e+000 Xe-131m 3.9147e+003 1.4484e+014 3.9182e-003 1.4497e+002

?age 3

)OS File: SLlENVO4.MS5 Attachment 6 to PSL-ENG-SENS-04-037, Rev. 0 Page 117 of 121 lun Date: March 11, 2003 tun Time: 2:42:39 PM

)uration: 00:06:12 Nuclide curies becQuerels u~i/cm3 Xe-133 6.4206e+005 2.3756e+016 6.4264e-001 2.3778e+004 Xe-133m 1.7567e+004 6.4999e+014 1.7583e-002 6.5058e+002 Xe-135 7.4004e+004 2.7382e+015 7.4071e-002 2.7406e+003 Xe-135m 1.6651e+002 6.1610e+012 1.6666e-004 6.1665e+000 Y-90 3.0220e-001 1.1181e+010 3.0247e-007 1.1191e-002 Y-91 1.7822e-001 6.5941e+009 1.7838e-007 6.6001e-003 Y-91m 1.2931e+000 4.7843e+010 1.2942e-006 4.7886e-002 Y-92 2.6543e-001 9.8207e+009 2.6566e-007 9.8296e-003 Y-93 2.8999e-002 1.073Oe+009 2.9025e-008 1.0739e-003 Zr-95 1.7173e-001 6.3541e+009 1.7189e-007 6.3598e-003 Zr-97 6.4918e-002 2.4020e+009 6.4977e-008 2.4041e-003 Buildup The material reference is : Shield I Integration Parameters x Direction 30 y Direction 60 z Direction 60 Results Eneray Activity Fluence Rate Fluence Rate ExDosure Rate ExDosure Rate MeV photons/sec 'MeV/CM21sec MeV/CM2/sec mR/hr mR/hr No Buildup With Buildup No Build= With Buildup 0.015 2.395e+08 0.OOOe+00 3.160e-29 0.OOOe+00 2.711e-30 0.02 1.499e+10 1.087e-222 3.112e-27 3.766e-224 1.078e-28 0.03 i.198e+16 2.150e-68 5.502e-21 2.131e-70 5.453e-23 0.04 5.248e+10 1.710e-37 6.391e-26 7.562e-40 2.827e-28 0.05 1.523e+11 4.817e-24 4.932e-23 1.283e-26 1.314e-25 0.06 6.981e+10 1.508e-18 4.150e-17 2.995e-21 8.243e-20 0.08 8.719,e+15 1.509e-08 8.413e-07 2.388e-11 1.331e-09 0.1 2.433e+11 4.520e-11 4.653e-09 6.915e-14 7.119e-12 0.15 6.964e+13 1.909e-06 3.326e-04 3.144e-09 5.477e-07 0.2 2.553e+15 8.865e-04 1.623e-01 1.565e-06 2.865e-04 0.3 1.192e+13 9.361e-05 1.228e-02 1.776e-07 2.330e-05 0.4 2.373e+13 1.459e-03 1.292e-01 2.843e-06 2.517e-04 0.5 1.404e+13 3.985e-03 2.499e-01 7.823e-06 4.904e-04 0.6 8.967e+13 8.485e-02 3.963e+00 1.656e-04 7.736e-03 0.8 1.098e+13 6.432e-02 1.888e+00 1.223e-04 3.590e-03 1.0 3.354e+12 7.547e-02 1.563e+00 1.391e-04 2.881e-03 1.5 5.737e+12 1.245e+00 1.439e+01 2.095e-03 2.421e-02 2.0 2.065e+13 1.861e+01 1.512e+02 2.878e-02 2.339e-01 3.0 9.550e+11 4.858e+00 2.573e+01 6.590e-03 3.490e-02 5.0 3.848e+10 1.118e+00 3.790e+00 1.282e-03 4.345e-03 TOTALS: 2.350e+16 2.606e+01 2.031e+02 3.919e-02 3.126e-01

MicroShield V5.05 (5.05-0000) Attachment 6 to PSL-ENG-SENS-04-037, Rev. 0 Page 118 of 121 Grove Engineering Page  : 1 File Ref:

DOS File: SL1ENVO5.MS5 Date:

Run Date: March 11, 2003 By:

Run Time: 2:50:49 PM Checked:

turation: 00:04:11 Case

Title:

slienvOS5

Description:

St. Lucie Unit 1 LOCA (External Cloud to CR) - 96 h Geometry: 13 - Rectangular Volum Source Dimensions Length 1.Oe+5 cm 3281 ft 0.0 in Width 3.2e+3 cm 103 ft 8.4 in Height 3.2e+3 cm 103 ft 8.4 in Dose Points

1. 11.OOe+05 cm 1805.94 cm 1805.94 cm 3293 ft59 ft 3.0 in 59 ft 3.0 in Shields Shield Name Dimension Material Density Source 3.53e+07 ft3 Air 0.00122 Shield 1 2.0 ftConcrete2.35 Air Gap Air 0.00122 Source Input Grouping Method : Standard Indices Number of Groups : 25 Lower Energy Cutoff : 0.015 Photons < 0.015 : Excluded Library : Grove Nuclide cures. becauerels uCi/cm3 Ba/CM3 Br-82 3.6446e-001 1.3485e+010 3.6479e-007 1.3497e-002 1-130 1.5843e-001 5.8618e+009 1.5857e-007 5.8671e-003 1-131 4.0699e+002 1.5059e+013 4.0735e-004 1.5072e+001 1-133 4.5861e+001 1.6968e+012 4.5902e-005 1.6984e+000 1-135 4.4220e-002 1.6361e+009 4.4260e-008 1.6376e-003 Kr-85 1.4064e+004 5.2035e+014 1.4076e-002 5.2082e+002 Kr-85m 7.7202e-002 2.8565e+009 7.7272e-008 2.8591e-003 Kr-88 3.8735e-005 1.4332e+006 3.8770e-011 1.4345e-006 Xe-131m 8.6762e+003 3.2102e+014 8.6840e-003 3.2131e+002 Xe-133 1.1451e+006 4.2370e+016 1.1462e+000 4.2408e+004 Xe-133m 1.8643e+004 6.8980e+014 1.8660e-002 6.9042e+002 Xe-135 1.1887e+003 4.3981e+013 1.1898e-003 4.4021e+001 Xe-135m 1.6073e-001 5.9470e+009 1.6087e-007 5.9523e-003 Buildup The material reference is  : Shield 1 Integration Parameters X Direction 30 Y Direction 60 Z Direction 60 Results

?age 2 Attachment 6 to PSL-ENG-SENS-04-037, Rev. 0

)OS File: SLlENV05.MS5 Page 119 of 121 tun Date: March 11, 2003 tun Time: 2:50:49 PM

)uration: 00:04:11 Enerov ACtivitv Fluence Rate Fluence Rate Exposure Rate Exmosure Rate Me photons/ls Mgy/CM2LSgg MeV/CM2/seQ mR/hr mR/hr No Build=s With Buildu= No Build= With BuilduD 0.03 2.089e+16 3.748e-68 9.593e-21 3.715e-70 9.507e-23 0.08 1.555e+16 2.691e-08 1.501e-06 4.259e-11 2.375e-09 0.1 9.662e+07 1.795e-14 1.848e-12 2.747e-17 2.828e-15 0.15 6.421e+12 1.760e-07 3.067e-05 2.899e-10 5.050e-08 0.2 1.408e+14 4.889e-05 8.951e-03 8.628e-08 1.580e-05 0.3 9.942e+11 7.810e-06 1.025e-03 1.481e-08 1.944e-06 0.4 1.249e+13 7.678e-04 6.799e-02 1.496e-06 1.325e-04 0.5 3.829e+12 1.087e-03 6.814e-02 2.133e-06 1.338e-04 0.6 2.537e+12 2.401e-03 1.121e-01 4.686e-06 2.189e-04 0.8 4.236e+11 2.481e-03 7.281e-02 4.719e-06 1.385e-04 1.0 4.607e+10 1.037e-03 2.147e-02 1.911e-06 3.958e-05 1.5 4.900e+10 1.063e-02 1.229e-01 1.789e-05 2.067e-04 2.0 1.962e+08 1.768e-04 1.437e-03 2.734e-07 2.222e-06 3.0 1.106e+04 5.625e-08 2.979e-07 7.631e-11 4.042e-10 TOTALS: 3.661e+16 1.864e-02 4.769e-01 3.321e-05 S. 899e-04

MicroShield v5.05 (5.05-0000) Attachment 6 to PSL-ENG-SENS-04-037, Rev. 0 Page 120 of 121 Grove Engineering

?age  : 1 File Ref:

)OS File: SL1ENVO6.MS5 Date:

tun Date: March 11, 2003 By:

tun Time: 2:58:39 PM Checked:

)uration: 00:03:55 Case

Title:

sllenvO6

Description:

St. Lucie Unit 1 LOCA (External Cloud to CR) - 720 h Geometry: 13 - Rectangular Volume Source Dimensions Length 1.Oe+5 cm 3281 ft 0.0 in Width 3.2e+3 cm 103 ft 8.4 in Height 3.2e+3 cm 103 ft 8.4 in Dose Points X X 7

1. 11.OOe+05 cm 1805.94 cm 1805.94 cm 3293 ft59 ft 3.0 in 59 ft 3.0 in Shields

,ShieldName Dimension MaterialDensity Source 3.53e+07 ft3 Air 0.00122 Shield 1 2.0 ftConcrete2.35 Air Gap Air 0.00122 Source Input Grouping Method : Standard Indices Number of Groups : 25 Lower Energy Cutoff : 0.015 Photons < 0.015 : Excluded Library : Grove Nuclide cbecerels UCi/cmL Bq/cm3 Br-82 4.3468e-006 1.6083e+005 4.3507e-012 1.6098e-007 I-131 9.0010e+002 3.3304e+013 9.0091e-004 3.3334e+001 I-133 8.2849e-007 3.0654e+004 8.2924e-013 3.0682e-008 Kr-85 8.5860e+004 3.1768e+015 8.5937e-002 3.1797e+003 Xe-13lm 1.4917e+004 5.5192e+014 1.4930e-002 5.5242e+002 Xe-133 2.3715e+005 8.7746e+015 2.3737e-001 8.7826e+003 Xe-133m 3.3893e+001 1.2540e+012 3.3924e-005 1.2552e+000 Buildup The material reference is  : Shield 1 Integration Parameters X Direction 30 Y Direction 60 Z Direction 60 Results Efn~ero Activity Fluence Rate Fluence Rate Exposure Rate Exoosure Rate MV photons/sec MeV/cm2/sec MeV/CM2/eL mR/hr mR/hr No Buildu2 With Buildup No Buildup With Buildup 0.03 4.512e+15 8.095e-69 2.072e-21 8.022e-71 2.053e-23 0.08 3.221e+15 5.575e-09 3.108e-07 8.822e-12 4.919e-10

'age  : 2

)OS File: SLIENVO6.MS5 Attachment 6 to PSL-ENG-SENS-04-037. Rev. 0 Page 121 of 121 tun Date: March 11, 2003 tun Time: 2:58:39 PM

)uration: 00:03:55 nercry Activity Fluence Rate Fluence Rate ExDosure Rate ExDosure Rate may photons/Lse MeV/cm2iLg MeV/r.M2L/se mR/hr mR/hr:

No Duildu With Bui ldur No Du i du= With Buildu 0.1 1.152e+03 2.141e-19 2.204e-17 3.276e-22 3.372e-20 0.15 1.082e+13 2.966e-07 5.167e-05 4.883e-10 8.508e-08 0.2 6.463e+12 2.244e-06 4.109e-04 3.961e-09 7.253e-07 0.3 2.176e+12 1.709e-05 2.243e-03 3.242e-08 4.254e-06 0.4 2.703e+13 1.662e-03 1.472e-01 3.238e-06 2.868e-04 0.5 1.391e+13 3.947e-03 2.475e-01 7.748e-06 4.858e-04 0.6 2.491e+12 2.357e-03 1.lOle-01 4.601e-06 2.149e-04 0.8 6.003e+11 3.516e-03 1.032e-01 6.688e-06 1.963e-04 1.0 4.832e+04 1.087e-09 2.252e-08 2.004e-12 4.15le-11 1.5 7.207e+04 1.564e-08 1.807e-07 2.631e-11 3.041e-10 2.0 1.822e+02 1.642e-10 1.335e-09 2.540e-13 2.064e-12 TOTALS: 7.796e+15 1.150e-02 6.107e-01 2.231e-05 1.189e-03