ML19294A687
| ML19294A687 | |
| Person / Time | |
|---|---|
| Site: | Grand Gulf  |
| Issue date: | 02/13/1979 |
| From: | Stolz J Office of Nuclear Reactor Regulation |
| To: | Stampley N MISSISSIPPI POWER & LIGHT CO. |
| References | |
| NUDOCS 7903080177 | |
| Download: ML19294A687 (7) | |
Text
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UNITE D STATES NUCLEAR REGULATORY COMMisslON
.. E WASHING TON, D. C. 20555 E
o FEB 131979 Docket Nos:
50-416 and 50-417 Mr. N. L. Stampley Vice President - Production Mississippi Power & Light Company P. 0. Box 1640 Jackson, Mississippi 39205
Dear Mr. Stampley:
SUBJECT:
CONTENTS OF THE OFFSITE DOSE CALCULATION MANUAL - GRAND GULF NUCLEAR STATION, UNITS 1 & 2 The Radiological Effluent Technical Specifications for PWR and BWR facilities issued in November 1978, require you to provide an Offsite Dose Calculation Manual (ODCM) with your proposed Technical Specifi-cations implementing 10 CFR 50.36a and other Federal Regulations.
The enclosure to this letter describes the staff's recorre.endations for the general contents of the ODCM.
The format for the ODCM is left to your discretion.
Sincerely, a.f, o n F. Stolz, Chief i ht Water Reactors Branch No. 1 Division of Project Management
Enclosure:
General Contents of the ODCM cc:
See next page 79030801T{
Mr. fl. L. Stampley FEB 131979 cc:
Mr. Robert B. McGehee, Attorney Wise, Carter, Child, Steen &
Caraway P. O. Box 651 Jackson, Mississippi 39205 Troy B. Conner, Jr., Esq.
Conner, Moore & Corber 1747 Pennsylvania Avenue,ii. W.
Washington, D. C.
20006 Mr. Adrian Zaccaria, Project Engineer Grand Gulf fluclear Station Bechtel Power Corporation Gaithersburg, Maryland 20760 s
- ~
- GENER AL CRIEl:!5 CF idE OXi" Section 1 - Set Poin s Provice the eauations ano rethocidloey to be used at tu sta tur. c
- t. nit for ea;b al ar.T. and tric set point on each effl nt release poir.t a:ccedi ;c to the Speci ficatiors 3.3.3.f5 and 3.3.3.9.
Provide the alarn and control location, the monitor description, location, power source, scale, range and identification number, and the ef fluent isclation control device, its location, po..er source and identification number.
If the set point value is' variable, provide the e0Uation to be used to predetermine the set point value that will assure that the Specification is r'et at each release point, and the value to be used when releases are not in progress.
If dilution or dispersion is used, describe the on-site equipment and measurement method used during release, the site related parameters and the set points used to assure that the Specification is met at each release point, in-cluding any administrative controls applicable at the station or unit.
The fixed and predetermined set points should consider the radioactive effluent to have a radionuclide distribution represented by nomal and anticipated operational occurrences.
Other features, such as surveillance requirements and the calibration method, should be addressed.
Section L - Liquid Effluent Concentration Provide the equations and methodology to be used at the station or unit for each liquid release point according to the Specification 3.11.1.1.
For
'TThe fomat for the ODCM is lef t up to the licensee and riay be sinplified by tables and grid printout.
Each page should be numbered and indicate the facility approval and ef fective date.
cor.tinuous and/or b6tch releases, the assumptions used for r.anual and gutc.
Datic termination of releases sFould be provided.
For batch reitases, the calculatienci rethods, ecuations and assumptions used, tocether witn the pre-release ar.d post-release analyses shoul d be crevided.
Other features, such as surveillance requirenents, sanplina and analysis progran, detection limitations and representative samplina should be addressed.
Section 3 - Gaseous Ef fluent Dose Rate Provide the ecuations and methodology to be used at the station or unit for each gaseous release point according to Specification 3.11.2.1.
Consider the various pathways, release point elevations, site related parameters and radionuclide contribution to the dose inpact limitation.
Provide the equa-tions and assumptions used, stipulating the pathway, receptor location and receptor age. Provide the dose factors to be used for the identified radio-nuclides released.
Provide the annual average disne-sion values (X/0 and D/0), the site specific parameters and release point elevations.
Other features, such as surveillance requirements, sampling and analysis program, detection limitations and representative sampling should be addressed.
Section 4 - Liquid Ef fluent Dose Provide the equations and methodology to be used at the station or unit for each liquid release point accordi., to the dose objectives given in Speci-fications 3.11.1.2.
The section should describe how the dose contributions calculated for the various pathways and release poikts, the
'are to La equations and assumptions.to be used, the site specific parameters to be
neasured and used, the receptor incation by direction a d aistance, anc the nethod of estir.atino and updatino cumulative doses cue to licuid reler.!:5.
Tne dose' factors, pathway transfer factors, Dathstay usage factcrs, and dilution factors for the coints of pathway oricin, etc., should be aiven, as hell as receptor age group, water and food consunption rate and other factors assumed or neasured.
Provide the nethod of determining the dilu-titn factor at the discharae durinc any licuid ef fluent release and any site specific paraneters used in these determinations.
Other features such as surveillance requirencats, sampling and analysis program, detection limitations and representative sampling should be addressed.
Section 5 - Gaseous Ef fluent Dose Provide the equations and methodology to be used at the station or unit for each gaseous release point according to the dose objectives given in Speci-fications 3.11.2.2 and 3.11.2.3.
The section should describe how the dose contributions are to be calculated for the various pathways and release points, the equations and assumptions to be used, the site specific para-3 meters to be measured and used, the receptor location by direction and dis-tance, and the method estinating and updating cumulative doses due to gaseous releases.
the location direction and distance to the nearest residence, cow, goat, meat animal, garden, etc., should be given, as well as receptor age group, crop yield, grazing time and other factors assumed or measured.
Provide the method of determining dispersion values (X/Q and
~,
D/Q) for short-term and long-term releases and any site specific parameters
. anc release point elevations used in these aeterninations.
Al so, previce the critaria for deternining short and long tirr. releases.
Ptn{r f46tures such as surveillance reouirements, sarolina and analysis orepra, detection limitations and representative sarpling should be addressed.
Section 6 - Projected Doses For licuid and gaseous radwaste treatment systems, provide tne method of projecting doses due to effluent releases for the normal and alternate oath-ways of treatr.;ent according to the specifications, describing the ccmponents and subsystens to be used.
Section 7 - Ocerability of Ecuiom. int Provide a flow diagram (s) defining the treatment paths and the components of the radioactive liquid,' gaseous and solid waste management systems that are to be maintained and used, pursuant to 10 CFR 50.36a, to meet Technical Specifications 3.11.1.3, 3.11.2.4 and 3.11.3.1.
Subcomponents of packaged equipment can be identified by a list. For operating reactors whose con-struction penait applications were filed prior to January 2,197 e " low diagram (s) shall be consistent with the information provided in
"-a with Section V.B.1 of Appendix I to 10 CFR Part 50.
For OL applications whose construction permits were filed after January 2,1971, the flow diagran(s) shall be consistent with the information provided in Chapter 11 aof the Final Safety Analysis Report (FSAR) or amendments ther~eto.
ls -
5-20: tion 8 - Sam:le Locations Frotid:- a rac of the Radielepical Er.viror. mental !br.itcri,g Fa ple Le:atiar.s indicatin; the nunbered sarpling locations given in Table 3.12-1.
Furtner clarifi:ation on tnese r.cr.t.srec sampling locations can :s provicec ey a list, inoicating the airection and distance from the center of the builoing complex of the unit or station, and may include a discriative name for ider.ti fication curposes.
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