ML20203E541
| ML20203E541 | |
| Person / Time | |
|---|---|
| Site: | Seabrook  |
| Issue date: | 07/22/1986 |
| From: | George Thomas PUBLIC SERVICE CO. OF NEW HAMPSHIRE |
| To: | Noonan V Office of Nuclear Reactor Regulation |
| References | |
| SBN-1168, NUDOCS 8607240172 | |
| Download: ML20203E541 (4) | |
Text
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George S. Thomas Vice President Nuclear Production July 22, 1986 Pubuc Service of New Hampshire New Hampshire Yankee Division SBN-1168 T.F.
B7.1.2 United States Nuclear Regulatory Commission Washington, DC 20555 Attention:
Mr. Vincent S. Noonan, Project Director PWR Project Directorate No. 5
References:
(a)
Construction Permits CPPR-135 and CPPR-136, Docket Nos. 50-443 and 50-444 (b) PSNH Letter (SBN-1149), dated July 1,1986, "Seabrook Station Of fsite Dose Calculation Manual (ODCM); Revised Manual", J. DeVincentis to V. S. Noonan Subj ect:
Seabrook Station Offsite Dose Calculation Manual (ODCM);
Revised Manual
Dear Sir:
During recent discussions with your Staf f concerning the ODCM, we agreed to add restrictions to Part A, of the ODCM for Method I and II dose calculation methodologies.
In addition we also discussed changes to four dose conversion factors in Table B.1-11.
Accordingly enclosed please find revisions to the ODCM reflecting the above changes.
It should be noted that the above referenced restrictions would apply pending completion of the Staff's final review and approval of these ODCM methodologies.
4 In regards to the restrictions being applied to the Method I gaseous dose calculation methodology, we understood that the basis for this restriction was as a result of the Staff's preliminary review of meteorological data.
As a result of this preliminary review, the Staf f advised us that disagreements on dispersion parameters would result in gaseous dose calculation differences no greater than a factor of 10.
We trust that the enclosed is acceptable and, where applicable, request that this be reflected in the next supplement to Seabrook's SER.
Very truly yours,
/
D@
Georg6 S. Thomas Enclosure cc:
Atomic Safety and Licensing Board Service List hbh ADOC h3 9
00 A
tl i P.O. Box 300. Seabrook, NH 03874. Telephone (603) 474-9574
' Dicna Curran, Esquira Patar J. Mathswa, Mayor Htrmon & Weica City Hall 2001 S. Street, N.W.
Newburyport, MA 01950 Suite 430 Washington, D.C.
20009 Judith H. Mizner Silvergate, Gertner, Baker, Sherwin E. Turk, Esq.
Fine, Good & Mizner Office of the Executive Legal Director 88 Broad Street U.S. Nuclear Regulatory Commission Boston, MA 02110 Tenth Floor Washington, DC 20555 Calvin A. Canney City Manager Robert A. Backus, Esquire City Hall 116 Lowell Street 126 Daniel Street P.O. Box 516 Portsmouth, NH 03801 Manchester, NH 03105 Stephen E. Merrill, Esquirc Philip Ahrens, Esquire Attorney General Assistant Attorney General George Dana Bisbee, Esquire Department of The Attorney General Assistant Attorney General Statehouse Station #6 Office of the Attorney General Augusta, ME 04333 25 Capitol Street Concord, NH 03301-6397 Mrs. Sandra Gavutis Chairman, Board of Selectmen Mr. J. P. Nadeau RFD 1 - Box 1154 Selectmen's Office Kennsington, NH 03827 10 Central Road Rye, NH 03870 Carol S. Sneider, Esquire Assistant Attorney General Mr. Angie Machiros Department of the Attorney General Chairman of the Board of Selectmen One Ashburton Place, 19th Floor Town of Newbury Boston, MA 02108 Newbury, MA 01950 Senator Gordon J. Humphrey Mr. William S. Lord U.S. Senate Board of Selectmen Washington, DC 20510 Town Hall - Friend Street (ATTN: Tom Burack)
Amesbury, MA 01913 Richard A. Hampe, Esq.
Senator Gordon J. Humphrey Hampe and McNicholas 1 Pillsbury Street 35 Pleasant Street Concord, NH 03301 Concord, NH 03301 (ATTN: Herb Boynton)
Thomas F. Powers, III H. Joseph Flynn, Esquire Town Manager Office of General Counsel Town of Exeter Federal Emergency Management Agency l
10 Front Street 500 C Street, SW j
Exeter, NH 03833 Washington, DC 20472 Brentwood Board of Selectmen Paul McEachern, Esquire RFD Dalton Road Matthew T. Brock, Esquire Brentwood, NH 03833 Shaines & McEachern 25 Maplewood Avenue Gary W. Holmes, Esq.
P.O. Box 360 Holmes & Ells Portsmouth, NH 03801 47 Winnacunnet Road Hampton, NH 03842 Robert Carrigg Town Office Mr. Ed Thomas Atlantic Avenue FEMA Region I North Hampton, NH 03862 442 John W. McCormack PO & Courthouse Boston, MA 02109 i
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PART A ENCLOSURE TO SBN-1163 e
RADIOLOGICAL EFFLUENT MONITORING PROGRAMS 1.0-INTRODUCTION The purpose of Part A of the ODCM (Of f-Site Dose Calculation Manual) is to describe the sanpling and analysis programs conducted by the station which pro-vides input to the models in Part B for calculating liquid and gaseous ef fluent concentrations, monitor setpoints,'and of f-site doses.
The results of Part B calculations are used to determine compliance with the concentration and do.se requirements of Technical Specification 3/4.11.
The Radiological Environnental Monitoring Program required as a minhuum to be conducted (per Technical Specification 3/4.12) is described in Part A, with the identification of current locations of sampling stations being utilized to meet the program re guirements listed in Part B.
The information obtained f rom the conduct of the Radiological Environnental Monitoring Program provides data on measurable levels of radiation and radioactive ma terials in the environment necessary to evaluate the relationship between quantities of radioactive materials released in ef fluents and resultant radiation doses to individuals f rom principal pathways of exposure.
The data developed in the surveillance and monitoring programs described in Part A to the ODCM provide a means to confirm that measurable concent rations of radioactive materials released as a result of Seabrook Station operations are not significantly higher than expected based on j
the dose models in Part B.
i (1)
Pending review and resolution of the staff's concerns regarding applied dispersion parame ters f or Me thod I gaseous dose calculations, the 11at ts shall be reduced by a f actor of 10.
This restriction will ensure compliance with 10CFR20 Appendix B and 10CFR50 Appendix I.
l Upon satisf actory review and resolution of the concerns regarding dispersion parame ters with the staff, this restriction will be deleted f rom the ODCM.
l (2) ththod 11 gaseous and liquid dose calculations shall not be imple-mented until additional information is provided describing in suf fitient detail the methodology used in Me thod II gaseous and liquid dose calculations.
Upon review, approval and incorporation of this methodology detail in Part B of the ODCM, this restriction will be d elected f rom the ODCM.
Tb, A. l'-l
ENCLOSURE TO SBN-1168 (Continutd)
-TABLE B.l-ll Dose Factors Specific For Seabrook Station For Liquid Releases Total Body Maximum Organ Dose Factor Dose Factor DFL
("#**)
- DFI,
("#**)
Radionuclide H-3 3.02E-13 3.02E-13 Cr-51 1.83E-Il 1.48E-09 Mn-54 5.14E-09 2.68E-08 Fe-55 1.26E-08 7.67E-08 Fe-59 8.74E-08 6.66E-07 Co-58 2.45E-09 1.40E-08 Co-60 6.14E-08 9.21E-08 Zn-65 2.73E-07 5.49E-07 Br-83 1.31E-14 1.89E-14 Rb-86 4.18E-10 6.96E-10 Sr-89 2.17E-10 7.59E-09l Sr-90 3.22E-08 1.31E-07 Mo-99 3.10E-Il 2.62E-10 Tc-99m 4.95E-Il 7.16E-Il Te-127m 7.07E-08 1.81E-06 Te-127 3.50E-10 9.46E-08 Te-129m 1.54E-07 3.46E-06 Te-129 6.97E-14 9.66E-14l Te-131m 3.16E-08 2.94E-06 l
Te-132 9.05E-08 3.80E-06 I-130 2.77E-11 3.20E-09 I-131 2.21E-10 1.00E-07 1-132 3.30E-12 4.03E-12 1-133 2.55E-Il 1.15E-08 1-134 1.18E-12 1.40E-12 4.39E-10 1-135 8.84E-12 Cs-134
- 3. 24 E-08 3.56E-08 Cs-136 2.46E-09 3.27E-09 Cs-137 3.58E-08 4.03E-08 l
Ba-140 1.64E-10 3.48E-09 I
La-140 5.13E-11 4.13E-08 l
Ce-141 3.67E-11 9.31E-09 l
Ce-144 1.95E-10 6.46E-08 Np-239 4.55E-12 5.71E-10 e
B.1-18
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