ML12048B413
| ML12048B413 | |
| Person / Time | |
|---|---|
| Site: | Indian Point  |
| Issue date: | 02/17/2012 |
| From: | Lemay F J Univ of Birmingham, United Kingdom |
| To: | Atomic Safety and Licensing Board Panel |
| SECY RAS | |
| References | |
| RAS 21928, 50-247-LR, 50-286-LR, ASLBP 07-858-03-LR-BD01 | |
| Download: ML12048B413 (5) | |
Text
UNITED STATES NUCLEAR REGULATORY COMMISSION BEFORE THE ATOMIC SAFETY AND LICENSING BOARD
x In re: Docket Nos. 50-247-LR; 50-286-LR
License Renewal Application Submitted by ASLBP No. 07-858-03-LR-BD01
Entergy Nuclear Indian Point 2, LLC, DPR-26, DPR-64 Entergy Nuclear Indian Point 3, LLC, and Entergy Nuclear Operations, Inc. February 17, 2012
x DECLARATION OF DR. FRANÇOIS J. LEMAY IN SUPPORT OF THE STATE OF NEW YORK'S ANSWER TO ENTERGY'S MOTION IN LIMINE TO EXCLUDE PORTIONS OF PRE-FILED TESTIMONY AND EXHIBITS FOR CONSOLIDATED CONTENTION NYS-12C
- 1. I am a professional engineer with a Ph.D. in Physics of Nuclear Reactors from the University of Birmingham, United Kingdom, with 27 years of experience in safety analysis, emergency response plans, procedures and systems, radiation protection, radi ation transport, risk assessment, environmental impact assessment, st andards and guidelines, audits and evaluations, emergency exercises, courses and training and international project
- s. As discussed in my pre-filed testimony (Exhibit NYS0000241), I currently offer an advanced level course on MELCOR Accident Consequence Code Systems 2 ("MACCS2") and COSYMA, a code from the European Union that is similar to MACCS, for health physicists and engineers.
I have extensive experience with the MACCS and MACCS2 codes, including using the codes to calculate the consequences to the population for several accidents scenarios in the context of the Nanticoke 2 New Build Project for Bruce Power in Ontario. I also have extensive experience with COSYMA, a code from the European Union that is similar to MACCS, and have performed similar calculations for ESKOM in South Afri ca, Hydro-Quebec and New Brunswick Power in Canada, and the Canadian Navy. My education, professional qualifications, and experience are provided in Exhibit NYS000291.
- 2. I am currently Vice President of International Safety Research Inc. ("ISR"). ISR has been retained by the State of New York to provide expert assistance in the Nuclear Regulatory Commission ("NRC") relicensing proceeding for Indian Point 2 and 3.
- 3. To perform the consequence portion of its SAMA analysis, Entergy used the MACCS2 computer model, which was develope d by Sandia National Laboratories. Entergy used the MACCS2 code to estimate the cost of decontamination and cleanup after a severe accident at Indian Point.
- 4. MACCS2 is executed in three steps. The first module, ATMOS, calculates air and ground concentrations, plume size, and timing information for all plume segments as a function of downwind distance. The next module, EARLY, calculates the consequences due to exposure to radiation in the first seven days, which is the emergency phase of the accident. The last module, CHRONC, calculates the consequence of the long-term effects of radiation and computes the decontamination and economic impacts incurred due to the accident.
- 5. All of the MACCS2 inputs used by Entergy in its SAMA analysis that are associated with decontamination and cleanup costs, i.e. economic costs, are found in the CHRONC module.
- 6. In our December 21, 2011, report titled Revi ew of Indian Point Severe Accident 3 Off Site Consequence Analysis (NYS000242), ISR c onducted a sensitivity analysis to determine which CHRONC input parameters have the greatest effect on the offsite economic cost risk ("OECR"), which is the per year total economic cost of a severe accid ent used in the SAMA analysis.
- 7. For each of the sensitive parameters thus determined, ISR identified: the definition of the parameter; the input values chosen by Entergy; the explicit or implicit rationales for Entergy's selection of those values; a range of more appropriate values (where applicable) based on available data and relevance to curren t site-specific conditions of the area surrounding Indian Point; and a re-calculation of the OECR using the more appropriate value(s).
- 8. In our report, there are two references to a modification of the MACCS2 source code: Page 22: "The MACCS2 code restricts decontamination costs (CDNFRM) to a maximum of $100,000/person; therefore, ISR mo dified the source code to allow for the greater decontaminati on costs proposed here." Page 24: "The MACCS2 code restricts the decontamination time input to a maximum of one year; therefore, ISR modified the source code to allow for greater decontamination times."
- 9. The MACCS2 code distributed by NRC includes an executable form of the code, along with the source code and test files. Providing the source c ode and test files is standard practice for nuclear codes since these programs need to be maintained and ported to different compilers and operating systems. Computer technology evolves quickly while the regulatory-accepted models change slowly. In addition, providing the source code allows the analysts to 4 scrutinize the calculation models and to make modifications wh en changes that had not been anticipated by the code designers become necessary.
- 10. For the input parameters CDNFRM and TIMDEC, ISR had to modify the original MACCS2 source code file to allow us to run the model using higher decontamination costs and longer decontamination times than those that we re envisioned when the code was developed. This was the only way to run the model using the input values we considered to be more appropriate for conducting a SAMA analysis for I ndian Point. These changes were simple and obvious for an experienced nuclear analyst.
- 11. The new file created by ISR that contains these modifications is named MACCS2-ISR.FOR, and was provided to NRC Staff.
- 12. For the parameter CDNFRM, the range for the nonfarm decontamination cost for all decontamination levels is hard-coded to be between $1/person to $100,000/person. In order to determine the overall costs as a result of ISR's proposed ranges of CDNFRM, ISR modified the source code to increase the upper bound of CDNFRM to $2,000,000/person. The change ISR made is shown in red below.
File Source code from originally MACCS2.FOR CALL RGETN ('CHCDNFRM001', 0, CDNFRM, LVLDEC, 1.0, 1.E5 , $ RANGE, FOUND, 'INCHRN', 'CDNFRM')
changed to MACCS2-ISR.FOR CALL RGETN ('CHCDNFRM001', 0, CDNFRM, LVLDEC, 1.0, 2.E6 , $ RANGE, FOUND, 'INCHRN', 'CDNFRM')
- 13. For TIMDEC, the range for the decontamination time for all decontamination levels is hard-coded to be between 1.0E-6 sec onds to 3.16E+7 seconds (1 year). In order to determine the overall costs as a result of our proposed ranges of TIMDEC, we modified the