ML20128H858

Forwards Request for Addl Info Re 850425 Rev 1 to Offsite Dose Calculation Manual

ML20128H858
Person / Time
Site:	River Bend
Issue date:	06/25/1985
From:	Butler W Office of Nuclear Reactor Regulation
To:	Booker J, William Cahill GULF STATES UTILITIES CO.
References
NUDOCS 8507100280
Download: ML20128H858 (6)

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DISTRIBUTION Docket File JUN 2 51985 NRC PDR Local PDR Docket No. 50-458 PRC System NSIC .-

LB#2 Reading EHylton Mr. William J. Cahill, Jr. SStern Senior Vice President JPartlow River Bend Nuclear Group BGrimes Gulf States Utilities Company EJordan P.O. Box 2951 Dewey CELD Beaumont, Texas 77704 ACRS (.16)

F. Congell, DSI Attention Mr. J. E. Booker E. Branagan, DSI J. Levine, DSI

SUBJECT:

REQUEST FOR ADDITIONAL INFORMATION - 0FFSITE DOSE CALCULATION MANUAL FOR RIVER BEND

As a part of the NRC Staff's review of your application for an operating license for River Bend Station, the staff has determined the need for additional in. form-ation in the area of the Offsite Dose Calculation Manual (0DCM) for River Bend.

, The staff has completed their review of the draft ODCM submitted in a letter from J. Booker to H. Denton dated May 31, 1985. Staff coments on the ODCM are Enclosure 1.

Please submit for final review, a revised ODCM that resolves the comments in Enclosure 1.

Sincerely, Walter R. Butler Licensing Branch No. 2 i Division of Licensing

Enclosure:

As stated cc w/ enclosure:

See next page 8507100200850M5B PDR ADOCK 05 s

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s JUN25 E Docket No. 50-458 Mr. William J. Cahill, Jr.

Senior Vice President

~ River Bend Nuclear Group Gulf States Utilities Company P.O. Box 2951 Beaumont, Texas 77704 Attention Mr. J. E. Booker

SUBJECT:

REQUEST FOR ADDITIONAL INFORMATION - 0FFSITE DOSE CALCULATION MANUAL FOR RIVER BEND l As a part of the NRC staff's review of your application for an operating license for River Bend Station, the staff has determined the need for additional infom-ation in the area of the Offsite Dose Calculation Manual (ODCM) for River Bend.

The staff has completed their review of the draft ODCM submitted in a letter from J. Booker to H. Denton dated May 31, 1985. Staff coments on the ODCM are Enclosure 1.

Please submit for final review, a revised ODCM that resolves the comments in Enclosure 1.

Sincerely,

. s Walter R. Butler Licensing Branch No. 2 Division of Licensing

Enclosure:

As stated cc w/ enclosure:

See next page i

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I'f I'.r. Uil. liar > J. CrFill, Jr. River Bend f'ucleer Fitnt Ot.lf Stutes Utilities Company cc: Troy B. Conner, Jr., Esq. Ms. Lindh 6. Watkins/Mr. Steven Irving Conner and Wetterhahn Attorney at Law 1747 Pennsylvania Avenue, N. II. 355 Napcicen Street Washington, D.C. 20006 Baton Ecusc, Louisiana 70802

l. Hr. Hilliam J. Reed, Jr.

Director - leuclear Licensing Gulf States Utilities Cerrrany o Post Office Box 2951 Beaurxnt, Texas 77704 Mr. David Zaloudek Nuclear Energy Divisicr L. Anne Plettinger Louisiana Depcrtr.cnt of 345f Villa Rose Dr. Environmental Quclity Baton Rouge, Lcuisianc 7060G Post Office Box 14690 Baton Rouge, Louisiar.a 70656 Richard M. Troy, Jr., Esq.

Assistant Attorney General it, Charge

-State of Leniticrc Departraent of Justice

-234 Loyola Avenut hew Orleans, Louisiana, 7G112 l'r. J. David McNeill, III Dwight D. :hamberlain Willien G. Davis, Esq.

Resioent irgector Department of Justice Post Office Cox 1051 Attorney Generai's Gifice St.'Francisville, Louisitr.a 70775 7434 Perkins Road Baton Rouge, Louisiana 70006 Gretcht.n R. Rothschild Louisianians for Saft. Er.erCy Irc.

1659 Glenmore Avenue Baton Ecuse, Louisiana 70775 a James W. Picrce, Jr., Esq.

P. 0. Box 23571 Baton Rouge, Louisiana 70893 Hr. Robert D. Martin U.S. NRC, Region IV Parkway Central Plaza Building 611 Ryan Plaza Drive, Sutie 1000 Arlington, Texts 70011 l

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f Enclosure COMMENTS ON THE PROPOSED OFFSITE DOSE CALCULATION MANUAL FOR RIVER BEND STATION, REV. I DTD 4/25/85

1. Appendix "B, Table B-2 The calculational assumptions for computing A gg are listed at the end of Table B-2, and a reference is given to Table 5.4-3 of the ER for BFj values for the principal nuclides (e.g., I, Cs, Co). However, Table 5.4-3 merely lists the site specific values used in the dose calculations in the ER, and does not provide the bases for the values. The differences between the ER values and ti.. Reg. Guide 1.109 values (Table A-1) are substantial for some nuclides. The ER values followed by the Reg. Guide values in parentheses for several elements follow: Cs, fish 16 (2000),

invertebrates 16 (1000); Co, fish 16(50), invertebrates 18(200); Zn fish 170(2000), invertebrates. 170 (10,000). Provide the bases for the values in ER Table 5.4-3, or adopt the Reg Guide valuer,

2. Gaseous Effluent Methodology (a) On p. 3-2 it is stated that the X/Q values used in eqs. 3.3.1.2.1-1 and 3.3.1.2.1-2 will be taken from Appendix E, whereas p. 3-3 indicates the values will be taken from App. F. In addition, it is not clear why the X/Q value for evaluating the gamma air dose in Table F-1 is less than the highest value in Table E-1. Resolve these apparent inconsistencies.

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f (b) On p. 3-7, it is stated that the X/Q values used in eq. 3.3.2.2-1 will be taken from App. F. The X/Q values listed in Table F-1 for evaluating doses for compliance with TS 3.11.2.1 are less than the highest values listed in Table E-1 for the site boundary. TS 3.11.2.1-states that "The dose rate due to radioactive materials released in gaseous effluents from the site to areas at and beyond the site boundary shall be limited to ..." Consequently, the highest X/Q values listed in Table E-1 for the site boundary should be used in eq. 3.3.2.2-1 or a bases should be given for using the values in Table F-1.

3. Appendix G The Pj values in Table G-1 are in error. They do not agree with the R$ values for inhalation listed in Table I-4. For example, compare the Pj values for an infant for Sr-90, bone; I-131, thyroid, and Cs-137, T. Body with the corresponding values in Table I-4. Check the values in Table G-1.

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4. Appendix I The R$ values for'some pathways (e.g., Table I-6, cow milk, goat milk, and meat) and some nuclides (e.g., H-3, I-131, Mn-54) are different than the values calculated by the staff. Apparently, site specific values have been used in calculating the R$ values. List the site specific values, and provide the bases for the values (or a refer-ence that provides the bases) that are different than those used in Reg. Guide 1.109.

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