Document: NRC Regulatory Guide
Document ID: f894855a-c715-452f-b015-247eb7da60f0
Document Type: regulatory_guide
Title: Irreversible and Irretrievable Commitment of Material Resources
Source: NRC Regulatory Guide Division 4
Source URL: https://www.nrc.gov/docs/ML1306/ML13064A122.pdf
Revision Date: 2023-06
Chapter: 
Section ID: RG-4.10
CFR Part: 
CFR Title: 

Content:
in the model. It should be especially noted that electric power transmission systems, switchyards, shipping casks, and fuel element and absorber materials were not included in the analysis as part of the reference plant model and may require separate discussion; a fuller description of systems excluded or included in the reference plant is given in Section 4 of Reference 1. Appropriate modifications should be made for differ- ences between the reference plant model and the plant design proposed by the applicant. Such deviations from the model plant and site definitions should be treated in a way consistent with Section 3 of Reference 1, using the standardized accounting system described in Appen- dices A, B, and D of the report and identifying the incremental amount of materials involved. Assumed basic constituents of composite materials should be taken from Appendix C of Reference 1. The numerical estimates of basic constituent material resource commitments given in Table 1 for the 1 000-MWe PWR model plant are acceptable to the NRC staff. D. IMPLEMENTATION The guidance presented herein on the discussion of irreVrsible and irretrievable commitments of material resources required by 10 CFR Part 51 may be used by any person submitting an application for a license to construct a nuclear power station. Other effective means of providing the required discussion of the commitment of material resources may also be used. Table 1 Numerical Estimates of Material Resource Commitments for 1000 MWe PWR Model Plant Material Total estimated quantity (metric tons, except where noted) Aluminum 18 Antimony Negligible Asbestos 138 Chromium 415 Copper 726 Iron 34,662 Lead 47 Manganese 467 Molybdenum 164 Nickel 484 Silver <1 Tin 2 Titanium Negligible Zinc 2 Magnesia 783 Cement 30,133 Aggregate (coarse) 90,361 Aggregate (fine) 45,855 Wood 4.8 x 106 (board feet) REFERENCES 1. RIH. Bryan and I.T. Dudley, "Estimated Quanti- ties of Materials Contained in a 1000-MW(e) PWR Plant,"