Regulatory Guide 4.10

Irreversible and Irretrievable Commitments of Material Resources

ML13350A244
Person / Time
Issue date:	06/30/1975
From:	NRC/OSD
To:
References
RG-4.010
Download: ML13350A244 (2)

U.S. NUCLEAR REGULATORY COMMISSION June 1975 REGULATORY GUIDE

OFFICE OF STANDARDS DEVELOPMENT

REGULATORY GUIDE 4.10

IRREVERSIBLE AND IRRETRIEVABLE COMMITMENTS OF MATERIAL RESOURCES

A. INTRODUCTION

referenced model plant. Reference plant feawures, methods used in making the estimate, accuracy of the In accordance with 10 CFR Part 51, applicants are estimates, and the accounting system employed are required to discuss any irreversible and irretrievable discussed in the report. Estimated quantities of the commitments of resources that would be involved in a composite materials and their constituents are sum- proposed action should it be implemented. The con- marized and presented in detail for each portion of the struction and operation of nuclear power stations power plant.

involves commitments of such resources as water, fuel, and materials. This guide identifies a report on material The estimates given in Tables I and 2 of Reference I

resources that forms a basis acceptable to the NRC staff can be utilized to assess approximate maximum use for required discussions of irreversible and irretrievable (assuming no recycling) of material resources for plants commitments of material resources involved in the of the type studied, and for other sizes or types of plants construction of a 1000 MWe pressurized water reactor. by using appropriate scaling factors, where feasible, or other reasonable adjustment assumption

B. DISCUSSION

sufficiently. similar to the model, a linear scale factor is acceptable.

A discussion of material resources acceptable to the NRC staff is presently described in Section 4.3 of It is desirable to augment the required disi.ussion by Regulatory Guide 4.2, "Preparation of Envirounental comparing materials used at one station to total national Reports for Nuclear Power Plants." In addition, a use and national reserves as reported in standard discussion of such commitments relating to alternative references such as Reference 2.

energy sources is described in Section 9.3 and to alternative plant designs in Chapter 10 of the same

C. REGULATORY POSITION

guide. This guide describes numerical estimates useful in all such discussions. It also provides methods of com- Reference I forms a basis acceptable to the NRC staff putation that may be referenced in Section 10 f. of for required discussions of irreversible and irretrievable Regulatory Guide 4.2, which treats supporting details commitments of material resources involved in plant for the consideration of plant design alternatives; it does construction.

not, however, provide a basis for a discussion of resource Material quantity estimates should be judged by commitments required for fossil plant alternatives.

comparison with the reference plant model described in Section 2 of Reference 1, a typical PWR power plant Oak Ridge National Laboratory has published a rated at 1000 MWe net output with run-of-river cooling.

report (Ref. 1) based on work carried out under Not all materials connected with the construction of a contract with the Atomic Energy Commission's Direc- nuclear power station were included in the model. It torates of Regulatory Standards and Licensing on the should be especially noted that electric power trans- problem of material resource commitment. This report mission systems, switchyards, shipping casks, and fuel gives a detailed estimate of the' materials contained in a element and absorber materials were not included in the typical 1000-MWe pressurized water reactor power analysis as part of the reference plant model and may plant, where typical parameters are defined in terms of a require separate discussion; a fuller description of USNRC REGULATORY GUIDES Comments should be sent to the Secrefa,.' of the Cotmission. U.S. Nuctelj Regulatory Commission. Washington. .C. 2%%.x Attention: Dacksling and

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Regulatory Guides ate issued to describe and make available to the public Service section.

methods acceptable to the NRC staff of implementing specific parn% of the Commission's regulations. to delineate techniques used by the stalf In evllu The guides are issued in the following ten broad divisions aling specific problems ot postulated accidents. or to provide guidance to sppli cents. Regulatory Guides are not substhulas tor regulations, and compliance t. Power Reactors 6. Products with them is .iotrequited. Mathods end solutions different from those eel Out in 2. Aesearch and Test Reactors 7 Transporletton the guides wlli be acceptable it they provide a basis fto the findings requisite to 3. Fuels and Moterials Facilities 6. Occupational Health the issuance or continuance of a permit or licente by the Commission. 4 Environmrtanlll and Siting 9. Antitrust Review Comments and suggestions for improvements in these guides are encouraged 5 Materials and Plant Protection 10, General It ell times. and guides will be revised. Is epproprialt, to accommodate corn- ments and to refl ect new inform3tion or experience. However. commentri on Copies of published guides may be obtained by written request indicating the this guide. tI ICeeved within about two months after its aesuence. will be pat divisions desired to the U S. Nuclear Regulatory Commission. Washington. 0 C

titulearly useful in evaluahlnq the need lo,rn early revision . 2M. Attention: Director. Office of Standards Oevitlopmlnt.

systems excluded or included in the reference plant is rable. I

given in Section 4 of Reference 1. Numerical Estimates of Material Resource Commitments for 1000 MWe PWR Model Plant Appropriate modifications should be made for differ- ences between the reference plant model and the plant design propos.-d by the applicant. Such deviations from Total estimated quantity the model plant and sEe definitions should be treated in Material (metric tons, except where noted)

a way consistent with Section 3 of Reference 1. using the standardized accounting system described in Appen- Aluminum 18 dixes A. B. and D of the .report and identifying the Antimony Negligible incremental amount of materials involved. Assumed Asbestos 138 basic constituents of composite materials should be Chromium 415 taken from Appendix C of Reference I. Copper 726 Iron 34,662 The numerical estimates of basic constituent material Lead 47 resource commitments given in Table I for the Manganese 467

1000-MWe PWR model plant are acceptable to the NRC Molybdenum 164 staff. Nickel 484 Silver <1

D. IMPLEMENTATION

Tin I

Titanium Negligible The guidance presented herein on the discussion of Zinc 2 irreversible and irretrievable commitments of material Magnesia 783 resUces required by 10 CFR Part 51 may be used by Cement 30,133 alny person submitting an application for a license to Aggregate (coarse) 90.361 construct a nuclear power station. Other effective means Aggregate (fine) 45,855 of providing the required discussion of tie commitment Wood 4.8 x. 106 (board feet)

of material resources may also be used.

REFERENCES

1. R.H. Bryan and I.T. Dudley. "Estimated Quanti- 2. U.S. Bureau of Mines AMineral Yearbook; copies ties of Materials Contained in a 1000-MW(e) PWR may be obtained from the Superintendent of Docu- Plant." ORNL-TM.4515, June 1974. Copies may be mients, U.S. Government Printing Office, Washington, obtained front the Oak Ridge National Laboratory or D.C. 20402, (published yearly).

from the ERDA Technical Information Center, P.O. Box E, Oak Ridge. Tennessee 37830.

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