ML18347A207

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ACRS Presentation Chapter 2 - Site Characteristics and Site Parameters, PM-1218-63753, Revision 0
ML18347A207
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Site: NuScale
Issue date: 12/18/2018
From: Arthur J, Infanger P
NuScale
To:
Office of New Reactors
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LO-1218-63755 PM-1218-63753, Rev 0
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L0-1218-63755  :

"ACRS Presentation Chapter 2 - Site Characteristics and Site Parameters," PM-1218-63753, Revision O NuScale Power, LLC 1100 NE Circle Blvd., Suite 200 Corvallis, Oregon 97330 Office 541.360-0500 Fax 541.207.3928 www.nuscalepower.com

NuScale Nonproprietary ACRS Presentation Chapter 2 -

Site Characteristics and Site Parameters J. J. Arthur, P.E.

Manager, Structures and Design Analysis

! Paul lnfanger I

I I Licensing Project Manager

.I December 18, 2018 PM-1218-63753 Revision: 0 Copyright 2018 by NuScale Power, LLC.

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Purpose

  • Provide FSAR Chapter 2 overview

- Site characteristics and parameters

- RAls

- SER open and confirmatory items 2

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Chapter 2 Overview

/

  • Site parameters are generally consistent with past applicant precedents and 2014 EPRI Advanced LWR Utility Requirements Document 3

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Conceptual Site Layout EAB, LPZ urbine Build in 0 ad ~ste Control Building Building on -limiting

_____ d Re ctor Build in _, on -Limiting Analytical X/Q Analytical X/Q Distance urbme Building lim1tm Analytical X/Q Distance

( 00 feet) EAB, LPZ 4

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Site Design Parameters

  • Design assumes site parameters representative of a reasonable number of potential plant site locations in the U.S. A summary of the parameters is in FSAR Table 2.0-1 and provided in following slides.
  • COL Item 2.0-1: demonstrate site-specific characteristics are bounded by design parameters specified in Table 2.0-1. If not bounded, demonstrate acceptability of site-specific values.

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2.1 Geography, Demography

  • Minimum distance from EAB to nearest release point -

400 ft

  • Minimum distance from LPZ outer boundary to nearest release point - 400 ft
  • COL Item 2.1-1: describe site geographic and demographic characteristics 6

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2.2 Nearby Facilities

  • No hazards from nearby industrial, transportation, or military facilities postulated
  • No aircraft hazards postulated
  • COL Item 2.2-1: describe nearby industrial, transportation, and military facilities; demonstrate design acceptability for each potential accident or provide site-specific design alternatives 7

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2.3 Meteorology

  • Max precipitation rate [HMR (NOAA), EPRI URD]

- 19.4 inches/hr (6.3 inches for 5 min period)

- normal I extreme 50 psf / 75 psf

- 145 mph with importance factor of 1.15 for RXB, CRB, RWB

  • Design basis tornado (RG 1. 76)

- max wind speed 230 mph

- translational speed 46 mph

- max rotational speed 184 mph (radius 150 ft)

- pressure drop / rate 1 .2 psi / 0 .5 psi/sec 8

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2.3 Meteorology (cont'd)

- missile spectra (RG 1.221 RO, Tables 1 & 2)

- max wind speed 290 mph

  • Zero % exceeda nce values (historical limit excluding peaks < 2 hr) used for CRVS design

- max outdoor design dry bulb temp 115°F

- min outdoor design dry bulb temp -40°F

- max coincident wet bulb temp 80°F

- max non-coinc ident wet bulb temp 81°F 9

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2.3 Meteorology (cont'd) 0

  • One /o exceedance values used for RBX and RWB HVAC design, and SCWS and CWS design

- max outdoor design dry bulb temp 100°F

- min outdoor design dry bulb temp -10°F

- max coincident wet bulb temp 77°F

- max non-coincident wet bulb temp 80°F

  • Five% exceedance values used for TGB HVAC design

- max outdoor design dry bulb temp 95°F

- min outdoor design dry bulb temp -5°F

- max coincident wet bulb temp 77°F 10 PM-1218-63753 Revision: 0 Copyright 2018 by NuScale Power, LLC.

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2.3 Meteorology {cont'd)

  • Atmospheric dispersion X/Q methodology based on ARCON96

- NuScale site boundary (400 ft) vs traditional LWR

(- 2,600 ft - 19,700 ft)

- NuScale applies ARCON96 methodology based on RG 1.194 for improved accuracy in predicting atmospheric dispersion for a short EAB/LPZ distance, as opposed to a PAVAN methodology based on RG 1.145, which was developed for longer distances

- Methodology described in Accident Source Term topical report Rev. 2 11 PM-1218-63753 Revision: 0 Copyright 2018 by NuScale Power, LLC.

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2.3 Meteorology {cont'd)

  • Accident release X/Q at EAB/LPZ boundary 2 hr 6.22E-04 s/m3 8 hr 5.27E-04 s/m3 24 hr 2.41 E-04 s/m3
  • 96 hr 2.51 E-04 s/m 3 720 hr 2.46E-04 s/m 3
  • Accident release X/Q at MCR/TSC door and HVAC intake 2 hr 6.SOE-03 s/m 3 8 hr 5.34E-03 s/m 3 24 hr 2.32E-03 s/m 3 4 days 2.37E-03 s/m 3 30 days 2.14E-03 s/m3 12 PM-1218-63753 Revision: 0 Copyright 2018 by NuScale Power, LLC.

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2.3 Meteorology (cont'd)

  • Routine release X/Q and D/Q (bounding offsite dose)

- undepleted/no decay 1.44E-05 s/m 3

- undepleted/2.26-day decay 1.44E-05 s/m 3

- depleted/8.00-day decay 1.44E-05 s/m 3

- D/Q 1.44E-07 l/m2

  • COL Item 2.3-1: describe site-specific meteorological characteristics for Section 2.3.1 through Section 2.3.5 13 PM-1218-63753 Revision: 0 Copyright 2018 by NuScale Power, LLC.

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2.4 Hydrology

  • Max flood elevation (EPRI URD)

- 1 ft below baseline plant elevation

  • Max groundwater elevation (EPRI URD)

- 2 ft below baseline plant elevation

  • COL Item 2.4-1: investigate and describe site-specific hydrologic characteristics for Section 2.4.1 through Section 2.4.14 14 PM-1218-63753 Revision: 0 Copyright 2018 by NuScale Power, LLC.

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2.5 Geology, Seismology

  • Design uses geologic, seismologic, and geotechnical engineering parameters representative of a reasonable number of potential plant site locations in the U. S ..
  • Two DBEs: CSDRS and CSDRS-HF
  • Spectra bound most of central and eastern U.S., and sites in less seismically active portions of western U.S.
  • Fault displacement potential none
  • Min soil bearing capacity 75 ksf
  • Lateral soil variability uniform ( < 20° dip)
  • Min internal friction soil angle 30°
  • Min shear wave velocity > 1000 fps .

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2.5 Geology, Seismology (cont'd)

  • Liquefaction potential none
  • Max settlement for RXB, CRB, RWB

- Total 4inches

- Tilt . 0.5 inch per 50 ft of building length or 1 inch total in any direction

- Differential 0.5 inch (RXB-CRB, RXB-RWB)

  • Slope failure potential none
  • COL Item 2.5-1: describe the site-specific geology, seismology, and geotechnical characteristics for Section 2.5.1 through Section 2.5.5 16 PM-1218-63753 Revision: 0 ' Copyright 2018 by NuScale Power, LLC.

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RAIS

  • ----~~-- ----:-~~ ~*----i FSAR Resolv~ esolved Suppl Resp
  1. RAIS Confirmatory Section Closed ~losed In Eval 2.3 5 2.4 1

~~ 5 1

  • Unresolved Closed issue involves analysis of accidental release of radioactive liquid effluents in groundwater and sutiace water using BTP 11-6 methodology and guidance (RAI 8750 Question 02.04.13-1) 17 PM-1218-63753 Revision: 0 Copyright 2018 by NuScale Power, LLC.

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SER Open Item 02.03.04-1

  • Acceptability of method for calculating accident offsite X/Q values for EAB and LPZ, which is the outer boundary from the AST topical report TR-0915-17565 18 PM-1218-63753 Revision: 0 Copyright 2018 by NuScale Power, LLC.

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SER Confirmatory Item 02.03.04-1

  • Use "EAB and Outer Boundary of the LPZ" instead of "Security Owner Controlled Area Fence" and "Site Owner Controlled Area Fence"
  • Changes incorporated in DCD Rev. 2.

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Abbreviations ASCE/SEI -American Society of Civil Engineers/Structural Engineering Institute AST - accident source term COL - combined license CRB - Control Building CRVS - normal control room HVAC system CSDRS - certified seismic design response spectra CSDRS-HF - CSDRS - high frequency CWS - circulating water system DCD - Design Control Document EAB - exclusion area boundary 20 PM-1218-63753 Revision: 0 Copyright 2018 by NuScale Power, LLC.

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Abbreviations {cont'd)

EPRI - Electric Power Research Institute FSAR - Final Safety Analysis Report HMR - Hydrometeorological Report HVAC - heating ventilation and air conditioning LPZ - low population zone LWR - light water reactor MCR - main control room NOAA - National Oceanic and Atmospheric Administration RAI - request for additional information RG - Regulatory Guide 21 PM-1218-63753 Revision: 0 Copyright 2018 by NuScale Power, LLC.

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Abbreviations (cont'd)

RWB - Radioactive Waste Building RXB - Reactor Building SER - Safety Evaluation Report sews - site cooling water system TGB - Turbine Generator Building TSC - technical support center URD - Utility Requirements Document 22 PM-1218-63753 Revision: 0 Copyright 2018 by NuScale Power, LLC.

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Portland Office Richland Office 6650 SW Redwood Lane, 1933 Jadwin Ave., Suite 130 -

Suite 210 Richland, WA 99354 Portland, OR 97224 541.360.0500 971.371.1592 Arlington Office Corvallis Office 2300 Clarendon Blvd., Suite 1110 1100 NE Circle Blvd., Suite 200 Arlington, VA 22201 Corvallis, OR 97330 541.360.0500 London Office 1st Floor Portland House Rockville Office Bressenden Place 11333 Woodglen Ave., Suite 205 London SW1 E 5BH Rockville, MD 20852 United Kingdom 301.770.0472 +44 (0) 2079 321700 Charlotte Office 2815 Coliseum Centre Drive, Suite 230 Charlotte, NC 28217 980.349.4804 http://www. nuscalepower. com

~ Twitter: @NuScale_Power NUSCALE' Power for all humankind 23 PM-1218-63753 Revision: 0 Copyright 2018 by NuScale Power, LLC.

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