ML18200A120

Enclosure 2: Meeting Slides (Summary of June 19, 2018, Public Meeting with Holtec International to Discuss Holtec'S Response to Nrc'S RAI for the Review of License Application for the Proposed HI-STORE Cisf at Lea County, Nm)

ML18200A120
Person / Time
Site:	HI-STORE
Issue date:	06/19/2018
From:	Spent Fuel Licensing Branch
To:	Division of Spent Fuel Management
Cuadrado J
Shared Package
ML18200A123	List: ML18200A106 ML18200A120
References
Download: ML18200A120 (8)

Text

Holtec HI-STORE CIS Review -

Discussion of 5/24/18 RAI responses on Aircraft Hazards Division of Spent Fuel Management, NMSS U.S. Nuclear Regulatory Commission Public Meeting with Holtec International June 19, 2018

Summary

• March 28, 2018 - NRC issues request for additional information (RAI), Part 1

- RAI 2 Requests additional details on aircraft hazards assessment for HI-STORE CISF site

• May 24, 2018 - Holtec submits responses to RAIs

• NRC staff has identified issues in Holtec's response to the aircraft hazards analysis

- Proximity criteria for flight paths (NUREG-0800)

- Effective area for the facility

- Crash rate for military aircraft

- Units of measurement (statute vs. nautical)

- Descriptions of SAR Figures

Issue 1 - Proximity Criteria from NUREG-0800

• Criterion B from Section 3.5.1.6 of NUREG-0800 not met

- Proximity of military flight path to the facility requires detailed analysis

• Additional information required for detailed analysis

- Annual number of flights, crash rates for specific aircraft types, distance to site, effective area of facility needed to estimate cumulative annual crash probability

Issue 2 - Estimate of effective area of the facility

• Section 3.5.1.6, Subsection 7 of NUREG-0800 provides guidance for estimating effective area of facility

- Must include footprint area of facility, skid area for specific aircraft, and shadow area of facility structures

• Response does not include shadow area or skid area

- Only footprint area for facility is included

Issue 3 - Basis for military aircraft crash rate

• Response does not provide basis provided for assumed military aircraft crash rate

• Section 3.5.1.6, Subsection 2 of NUREG-0800 cites specific references with data on aircraft crash rates

- DOE, Accident Analysis of Aircraft into Hazardous Facilities, DOE-STD-3014-96, October 1996

Issue 4 - Units of measurement for airway distances

• RAI response should use consistent distance measurement units

- SAR Table 2.2.5 cites distances in nautical miles, compares with statute miles from FAA Sectional chart

• Analysis should consider distances to edge of airway

Issue 5 - References to SAR Figure 2.2.7

• RAI response does not provide specific explanations of the information in SAR Figure 2.2.7

- Any figures, tables, or charts provided in the application should be adequately described

Conclusions

• NRC staff needs additional information to address RAIs on aircraft hazards and determine compliance with NRC's safety regulations

• Timely completion of NRC review of Holtec's HI-STORE CISF application requires complete and high quality responses to NRC staff's questions