ML22278A211
| ML22278A211 | |
| Person / Time | |
|---|---|
| Site: | Limerick  |
| Issue date: | 09/19/2022 |
| From: | Constellation Energy Generation |
| To: | Office of Nuclear Reactor Regulation |
| Shared Package | |
| ML22278A223 | List:
|
| References | |
| Download: ML22278A211 (18) | |
Text
LGS UFSAR CHAPTER 2 - SITE CHARACTERISTICS TABLE OF CONTENTS 2.1 GEOGRAPHY AND DEMOGRAPHY 2.1.1 Site Location and Description 2.1.1.1 Specification of Location 2.1.1.2 Site Area 2.1.1.3 Boundaries for Establishing Effluent Release Limits 2.1.2 Exclusion Area Authority and Control 2.1.2.1 Authority 2.1.2.2 Control of Activities Unrelated to Plant Operation 2.1.2.3 Arrangements for Traffic Control on Public Passageways 2.1.2.4 Abandonment or Relocation of Roads 2.1.3 Population Distribution 2.1.3.1 Population Within 10 Miles 2.1.3.2 Population Between 10 and 50 Miles 2.1.3.3 Transient Population 2.1.3.4 Low Population Zone 2.1.3.5 Population Center 2.1.3.6 Population Density 2.2 NEARBY INDUSTRIAL, TRANSPORTATION, AND MILITARY FACILITIES 2.2.1 Locations and Routes 2.2.2 Descriptions 2.2.2.1 Description of Facilities 2.2.2.2 Descriptions of Products and Materials 2.2.2.3 Pipelines 2.2.2.4 Waterways 2.2.2.5 Airports 2.2.2.6 Projections of Industrial Growth 2.2.3 Evaluation of Potential Accidents 2.2.3.1 Determination of Design Basis Events 2.2.3.1.1 Explosions 2.2.3.1.2 Flammable Vapor Clouds 2.2.3.1.3 Exposure to Hazardous Chemical Releases 2.2.3.1.4 Fires 2.2.3.1.5 Collisions with the Intake Structure 2.2.3.1.6 Liquid Spills 2.2.3.2 Effects of Design Basis Events 2.2.4 References CHAPTER 02 2-i REV. 21, SEPTEMBER 2022
LGS UFSAR TABLE OF CONTENTS (cont'd) 2.3 METEOROLOGY 2.3.1 Regional Climatology 2.3.1.1 General Climate 2.3.1.1.1 Air Masses and Synoptic Features 2.3.1.1.2 General Airflow 2.3.1.1.3 Temperature 2.3.1.1.4 Relative Humidity 2.3.1.1.5 Precipitation 2.3.1.1.6 Relationship Between Synoptic and Local Scale Meteorology 2.3.1.2 Regional Meteorological Conditions for Design and Operating Bases 2.3.1.2.1 Seasonal and Annual Frequencies of Severe Weather Phenomenon 2.3.1.2.2 Maximum Snow Load 2.3.1.2.3 Meteorological Design Basis for the Ultimate Heat Sink 2.3.1.2.4 Design Basis Tornado 2.3.1.2.5 Fastest Mile of Wind 2.3.2 Local Meteorology 2.3.2.1 Normal and Extreme Values of the Meteorological Parameters 2.3.2.1.1 Wind Direction and Speed 2.3.2.1.2 Atmospheric Stability 2.3.2.1.3 Temperature 2.3.2.1.4 Precipitation 2.3.2.1.5 Humidity 2.3.2.1.6 Fog 2.3.2.2 Potential Influence of the Plant and its Facilities on Local Meteorology 2.3.2.2.1 Turbulent Wake Effects From Plant Structures 2.3.2.2.2 Potential Effects of the Waste Heat Dissipation System on the Local Meteorology 2.3.2.3 Topography 2.3.3 Onsite Meteorological Measurements Program 2.3.3.1 Preoperational Meteorological Measurement System (1970-1983) 2.3.3.1.1 Measurements and Instrumentation 2.3.3.1.2 Calibration and Maintenance Procedures 2.3.3.1.3 Data Analysis Procedures 2.3.3.2 Operational Meteorological Measurement System (1983) 2.3.3.2.1 Measurements and Instrumentation 2.3.3.2.2 Calibration and Maintenance Procedures 2.3.3.2.3 Data Analysis Procedures 2.3.3.3 Offsite Meteorological Monitoring Locations 2.3.3.3.1 Philadelphia 2.3.3.3.2 Allentown 2.3.3.3.3 Peach Bottom Atomic Power Station 2.3.4 Short-Term (Accident) Diffusion Estimates 2.3.4.1 Objective 2.3.4.2 Calculations CHAPTER 02 2-ii REV. 21, SEPTEMBER 2022
LGS UFSAR TABLE OF CONTENTS (cont'd) 2.3.4.2.1 Calculation of X/Q Values at the EAB and LPZ 2.3.4.2.2 Determination of Max Sector and Overall 5% Site X/Q Values 2.3.4.2.2.1 Maximum Sector X/Q 2.3.4.2.2.2 5% Overall Site X/Q 2.3.4.2.3 Meteorological Input 2.3.4.2.4 Building Wake Correction 2.3.4.2.5 Short Term X/Q Modeling Results 2.3.5 Long-Term (Routine) Diffusion Estimates 2.3.5.1 Meteorological Input 2.3.5.2 Plume Rise 2.3.5.3 Diffusion Model 2.3.5.3.1 Source Configuration 2.3.5.3.2 Terrain Corrections 2.3.5.3.3 Atmospheric Stability 2.3.5.3.4 Dispersion Coefficients 2.3.5.3.5 Recirculation Correction Factors 2.3.6 References 2.4 HYDROLOGIC ENGINEERING 2.4.1 Hydrologic Description 2.4.1.1 Site and Facilities 2.4.1.2 Hydrosphere 2.4.1.2.1 Hydrologic Characteristics 2.4.1.2.2 Existing and Proposed Water-Control Structures 2.4.1.2.3 Surface Water Users Whose Intakes Could Be Adversely Affected by the Accidental Release of Contaminants 2.4.2 Floods 2.4.2.1 Flood History 2.4.2.2 Flood Design Considerations 2.4.2.3 Effects of Local Intense Precipitation 2.4.2.3.1 Drainage from Cooling Tower Area 2.4.2.3.2 Drainage From Spray Pond Area 2.4.2.3.3 Drainage from Power Plant Complex Area 2.4.2.3.4 Roof Loads on Safety-Related Structures That Are Due to PMP Onsite 2.4.2.3.5 PMF in Possum Hollow Run 2.4.2.3.6 Summary of Results - Local Intense Precipitation 2.4.3 Probable Maximum Flood on Steams and Rivers 2.4.3.1 Probable Maximum Precipitation 2.4.3.2 Precipitation Losses 2.4.3.3 Runoff and Stream Course Models 2.4.3.4 Probable Maximum Flood Flow 2.4.3.5 Water Level Determinations 2.4.3.5.1 Data Availability 2.4.3.5.2 Historical Floods 2.4.3.5.3 Water Level Determination up to 356,000 cfs CHAPTER 02 2-iii REV. 21, SEPTEMBER 2022
LGS UFSAR TABLE OF CONTENTS (cont'd) 2.4.3.5.4 Water Level Determination for Flows Above 356,000 cfs 2.4.3.6 Coincident Wind-Wave Activity 2.4.4 Potential Dam Failures, Seismically Induced 2.4.4.1 Dam Failure Permutations 2.4.4.2 Unsteady Flow Analysis of Potential Dam Failures 2.4.4.3 Water Level at Plant Site 2.4.4.3.1 Maximum Computed Water Surface and Wave Effects 2.4.4.3.2 Recapitulation of Conservative Steps in Dam Break Analysis 2.4.5 Probable Maximum Surge and Seiche Flooding 2.4.6 Probable Maximum Tsunami Flooding 2.4.7 Ice Effects 2.4.8 Cooling Water Canals and Reservoirs 2.4.8.1 General Description of the Spray Pond 2.4.8.2 Hydrologic Design Bases 2.4.8.2.1 Design Basis Flood Level 2.4.8.2.2 Safe Shutdown and Operating Basis Earthquakes 2.4.8.3 Low Level Outlet Facilities 2.4.9 Channel Diversions 2.4.10 Flooding Protection Requirements 2.4.11 Low Water Considerations 2.4.12 Dispersion, Dilution, and Travel Times of Accidental Releases of Liquid Effluents in Surface Waters 2.4.13 Groundwater 2.4.13.1 Description and Onsite Use 2.4.13.1.1 Groundwater Aquifer 2.4.13.1.2 Aquifer Recharge and Discharge 2.4.13.1.3 Onsite Use of Groundwater 2.4.13.2 Sources 2.4.13.2.1 Regional Use of Groundwater 2.4.13.2.2 Use of Groundwater in the Vicinity of the Site 2.4.13.2.3 Projected Future Use of Groundwater 2.4.13.2.4 Water Levels and Groundwater Movement 2.4.13.2.5 Aquifer Parameters 2.4.13.2.6 Reversibility of Groundwater Flow 2.4.13.2.7 Water Quality 2.4.13.3 Accident Effects 2.4.13.3.1 Groundwater Movement 2.4.13.3.2 Analytical Model for Radionuclide Migration 2.4.13.3.3 Radionuclide Ion Velocity and Travel Time 2.4.13.3.4 Dispersivity (Dispersion Constant)
CHAPTER 02 2-iv REV. 21, SEPTEMBER 2022
LGS UFSAR TABLE OF CONTENTS (cont'd) 2.4.13.3.5 Results of Analysis 2.4.13.4 Monitoring and Safeguard Requirements 2.4.13.5 Design Bases for Subsurface Hydrostatic Loading 2.4.14 Technical Specification and Emergency Operation Requirements 2.4.15 References 2.5 GEOLOGY AND SEISMOLOGY 2.5.1 Basic Geologic and Seismic Data 2.5.1.1 Regional Geology 2.5.1.1.1 Regional Physiography and Geomorphology 2.5.1.1.2 Regional Stratigraphy 2.5.1.1.3 Regional Geologic Structure 2.5.1.1.4 Geologic History 2.5.1.2 Site Geology 2.5.1.2.1 General 2.5.1.2.2 Physiography 2.5.1.2.3 Stratigraphy 2.5.1.2.4 Structure 2.5.1.2.5 Fracture Zones in the Site Area 2.5.1.2.6 Site Geologic History 2.5.1.2.7 Engineering Geology Evaluation 2.5.1.2.8 Site Groundwater Conditions 2.5.2 Vibratory Ground Motion 2.5.2.1 Seismicity 2.5.2.1.1 Regional Seismicity 2.5.2.1.2 Local Seismicity 2.5.2.2 Geologic Structures and Tectonic Activity 2.5.2.2.1 Regional Geologic Setting 2.5.2.2.2 Regional Tectonic Provinces 2.5.2.2.3 Regional Tectonic Structures 2.5.2.3 Correlation of Earthquake Activity with Geologic Structures or Tectonic Provinces 2.5.2.3.1 Tectonic Models Relating Seismicity to Geologic Structure 2.5.2.4 Maximum Earthquake Potential 2.5.2.5 Seismic Wave Transmission Characteristic of the Site 2.5.2.6 Safe Shutdown Earthquake 2.5.2.7 Operating Basis Earthquake 2.5.3 Surface Faulting 2.5.3.1 Geologic Conditions of the Site 2.5.3.2 Evidence of Fault Offset 2.5.3.2.1 Geologic Structures in the LGS Site Excavation 2.5.3.3 Earthquakes Associated with Capable Faults 2.5.3.4 Investigation of Capable Faults 2.5.3.5 Correlation of Epicenters with Capable Faults CHAPTER 02 2-v REV. 21, SEPTEMBER 2022
LGS UFSAR TABLE OF CONTENTS (cont'd) 2.5.3.6 Descriptions of Capable Faults 2.5.3.7 Zone Requiring Detailed Fault Investigation 2.5.3.8 Results of Faulting Investigation 2.5.4 Stability of Subsurface Materials and Foundations 2.5.4.1 Geologic Features 2.5.4.2 Properties of Subsurface Materials 2.5.4.2.1 Properties of Foundation Rocks 2.5.4.2.2 Properties of Foundation Soils 2.5.4.3 Exploration 2.5.4.4 Geophysical Surveys 2.5.4.4.1 Seismic Refraction Survey 2.5.4.4.2 Shear-Wave Velocity Survey 2.5.4.4.3 Up-Hole Velocity Survey 2.5.4.4.4 Micromotion Measurements 2.5.4.5 Excavations and Backfill 2.5.4.5.1 Main Power Block and Cooling Tower Excavation 2.5.4.5.2 Diesel Generator Enclosure Excavation 2.5.4.5.3 Spray Pond Excavation, Slope Protection and Liner Construction 2.5.4.5.4 Fills - General 2.5.4.5.5 Miscellaneous Category I Facilities - Excavation and Backfill 2.5.4.6 Groundwater Conditions 2.5.4.6.1 Spray Pond Seepage Analysis 2.5.4.6.2 Dewatering During Construction 2.5.4.6.3 Groundwater Monitoring 2.5.4.7 Response of Soil and Rock to Dynamic Loading 2.5.4.7.1 Response of Soil Along Pipelines 2.5.4.8 Liquefaction Potential 2.5.4.9 Earthquake Design Basis 2.5.4.10 Static Stability 2.5.4.10.1 Static Stability of Safety-Related Structures on Rock 2.5.4.10.2 Static Stability of Safety-Related Structures on Soil 2.5.4.11 Design Criteria 2.5.4.11.1 Design Criteria For Safety-Related Structures on Rock 2.5.4.11.2 Design Criteria For Safety-Related Structures on Soil 2.5.4.12 Techniques to Improve Subsurface Conditions 2.5.4.12.1 Treatment of Fracture Zones and Clay Seams - Main Power Block Area 2.5.4.12.2 Treatment of Fracture Zones and Clay Seams - Spray Pond and Other Areas 2.5.4.13 Subsurface Instrumentation 2.5.5 Stability of Slopes 2.5.5.1 Slope Characteristics 2.5.5.1.1 Geologic Conditions 2.5.5.1.2 Exploration - Emergency Spray Pond 2.5.5.1.3 Laboratory Testing of Soils 2.5.5.2 Design Criteria and Analyses 2.5.5.2.1 Stability of Rock Slope 2.5.5.2.2 Design Criteria for Soil Slopes CHAPTER 02 2-vi REV. 21, SEPTEMBER 2022
LGS UFSAR TABLE OF CONTENTS (cont'd) 2.5.5.2.3 Methods of Slope Stability Analyses 2.5.5.2.4 Design Parameters 2.5.5.2.5 End of Construction Under Static Conditions 2.5.5.2.6 Rapid Drawdown Under Static Conditions 2.5.5.2.7 Long-Term Stability Under Static Conditions 2.5.5.2.8 Long-Term Stability Under Seismic Conditions 2.5.5.3 Logs of Borings 2.5.5.4 Compacted Fill 2.5.5.4.1 Soil-Bentonite Liner and Soil Cover 2.5.5.4.2 Riprap and Riprap Bedding 2.5.5.4.3 Construction 2.5.5.4.4 Seepage Test 2.5.5.5 Dikes 2.5.6 References CHAPTER 02 2-vii REV. 21, SEPTEMBER 2022
LGS UFSAR CHAPTER 2 - SITE CHARACTERISTICS LIST OF TABLES TABLE TITLE 2.1-1 Population Distribution, 0-10 Miles, 1970 2.1-2 Population Distribution, 0-10 Miles, 1980 2.1-3 Population Distribution, 0-10 Miles, 1985 2.1-4 Population Distribution, 0-10 Miles, 1990 2.1-5 Population Distribution, 0-10 Miles, 2000 2.1-6 Population Distribution, 0-10 Miles, 2010 2.1-7 Population Distribution, 0-10 Miles, 2020 2.1-8 Population Distribution, 10-50 Miles, 1970 2.1-9 Population Distribution, 10-50 Miles, 1980 2.1-10 Population Distribution, 10-50 Miles, 1985 2.1-11 Population Distribution, 10-50 Miles, 1990 2.1-12 Population Distribution, 10-50 Miles, 2000 2.1-13 Population Distribution, 10-50 Miles, 2010 2.1-14 Population Distribution, 10-50 Miles, 2020 2.1-15 Sources of Projected Populations 2.1-16 Bureau of Census Populations of Counties Within 50 Miles of the Site 2.1-17 Industries Within 5 Miles of the Site 2.1-18 Comparative Cumulative Populations for 1985 2.1-19 Comparative Cumulative Populations for 2020 2.2-1 Hooker Chemical Company 2.2-2 Pipelines Within 5 Miles of the Site 2.2-3 Airports Within 10 Miles of the Site CHAPTER 02 2-viii REV. 21, SEPTEMBER 2022
LGS UFSAR LIST OF TABLES (cont'd)
TABLE TITLE 2.2-4 Airways Within 10 Miles of the Site 2.2-5 Onsite Chemical Storage 2.2-6 Deleted 2.2-7 Summary of Peak Positive Reflected Pressures Resulting from Railroad and Natural Gas Pipeline Explosion 2.3.1-1 Comparison of Annual Wind Direction Frequency Distribution 2.3.1-2 Mean Monthly Temperature Comparison 2.3.1-3 Comparison of Mean Morning and Afternoon Relative Humidity 2.3.1-4 Distribution of Precipitation, Philadelphia International Airport 2.3.1-5 Distribution of Precipitation, Allentown Airport 2.3.1-6 Mean Number of Thunderstorm Days per Year in the LGS Vicinity 2.3.1-7 LGS Design Basis Tornado Parameters 2.3.1-8 LGS Vertical Profile of the 100 Year Recurrence Interval Fastest Mile of Wind 2.3.1-9 Summary of Hurricanes and Tropical Storms Affecting the LGS Vicinity Between 1963 and 1980 2.3.2-1 LGS Percent Data Recovery for Meteorological Sensors 2.3.2-2 LGS Comparison of Annual Wind Direction Frequency Distributions, Weather Station No. 1 2.3.2-3 LGS Monthly Average Wind Speeds, Weather Station No. 1 2.3.2-4 LGS Comparison of Annual Wind Direction Frequency Distributions, Weather Station No. 1 2.3.2-5 LGS Comparison of Annual Wind Direction Frequency Distributions, Weather Station No. 2 2.3.2-6 LGS Comparison of Annual Wind Direction Frequency Distributions from Equivalent MSL Heights 2.3.2-7 LGS Comparison of Annual Wind Direction Frequency Distributions Low Level Sensors 2.3.2-8 LGS Comparison of Monthly Average Wind Speeds CHAPTER 02 2-ix REV. 21, SEPTEMBER 2022
LGS UFSAR LIST OF TABLES (cont'd)
TABLE TITLE 2.3.2-9 Comparison of Wind Speed Frequency Distributions 2.3.2-10 LGS Annual Frequency Distribution of Brookhaven Turbulence Classes, Weather Station No. 1 2.3.2-11 LGS Annual Frequency Distribution of Pasquill Stability Classes by NRC Lapse Rate Criteria, Weather Station No. 1 2.3.2-12 LGS Annual Frequency Distribution of Brookhaven Turbulence Classes 2.3.2-13 LGS Annual Frequency Distribution of Pasquill Stability Classes by NRC Lapse Rate Criteria 2.3.2-14 Brookhaven National Laboratory Turbulence Classification 2.3.2-15 LGS Mean Morning and Afternoon Mixing Heights 2.3.2-16 LGS Temperature Means and Extremes, Weather Station No. 1 2.3.2-17 Comparison of Monthly Mean Temperatures, LGS versus Philadelphia 2.3.2-18 Comparison of Monthly Mean Temperatures, LGS versus Allentown 2.3.2-19 LGS Monthly Precipitation Distribution, Weather Station No. 1 2.3.2-20 Comparison of Monthly Mean Precipitation, LGS versus Philadelphia 2.3.2-21 Comparison of Monthly Mean Precipitation, LGS versus Allentown 2.3.2-22 Comparison of Mean Morning and Afternoon Relative Humidity 2.3.2-23 Comparison of Frequency Distributions of Daily Average Relative Humidity Values 2.3.2-24 Comparison of Annual Frequency Distributions of Hourly Relative Humidity Values 2.3.2-25 Mean Number of Days with Heavy Fog 2.3.2-26 Offsite Elevation versus Distance from LGS Vents 2.3.2-27 LGS Joint Frequency Distribution of Calm Hours, 1972-1976, Weather Station No. 1, 30 ft Level 2.3.2-28 LGS Joint Frequency Distribution of Calm Hours, 1972-1976, Weather Station No. 1, 175 ft Level CHAPTER 02 2-x REV. 21, SEPTEMBER 2022
LGS UFSAR LIST OF TABLES (cont'd)
TABLE TITLE 2.3.2-29 LGS Joint Frequency Distribution of Calm Hours, 1972-1976, Weather Station No. 1, 270 ft Level 2.3.2-30 LGS Joint Frequency Distribution of Calm Hours, 4/72-3/73, Weather Station No.
2, 30 ft Level 2.3.2-31 LGS Joint Frequency Distribution of Calm Hours, 4/72-3/73, Weather Station No.
2, 159 ft Level 2.3.2-32 LGS Joint Frequency Distribution of Calm Hours, 4/72-3/73, Weather Station No.
2, 304 ft Level 2.3.2-33 LGS Joint Frequency Distribution of Calm Hours, 1/75-12/76, Satellite Tower, 32 ft Level 2.3.3-1 Instrument Elevations, Preoperational Meteorological Measurement System (1970-1983) 2.3.3-2 Preoperational Meteorological Measurement System (1970-1983) Sensor and System Specifications and Accuracies 2.3.3-3 LGS Percent of Hours with Calm Winds 2.3.3-4 Station Locations - Philadelphia 2.3.3-5 Station Locations - Allentown 2.3.3-6 Instrument Elevations, Operational Meteorological Measurement System (1983) 2.3.3-7 Operational Meteorological Measurement System (1983) Sensor and System Specifications and Accuracies 2.3.4-1 Joint Frequency Distribution 2.3.4-2 Lapse Rate Wind Distributions 2.3.4-3 LGS Effective Probability Levels 2.3.4-4 Summary of the North and South Stacks Maximum Sector and 5% Overall Site Limit X/Q Values at the EAB and LPZ for Regulatory Post-Accident Time Periods 2.3.4-5 LGS Stability and Wind Speed Distributions 2.3.5-1 Historical Annual X/Q - Uncorrected 2.3.5-2 LGS Vent Parameters CHAPTER 02 2-xi REV. 21, SEPTEMBER 2022
LGS UFSAR LIST OF TABLES (cont'd)
TABLE TITLE 2.4-1 Access Openings in Safety-Related Structures 2.4-2 Minor Dams Upstream of LGS Site 2.4-3 Dam Failure Investigation: Characteristics of Major Upstream Dams 2.4-4 Domestic Water Users on Schuylkill River Downstream of LGS Site 2.4-5 Industrial Water Users on Schuylkill River Downstream of LGS Site 2.4-6 Major Floods at Selected Stations on Schuylkill River 2.4-7 Probable Maximum Precipitation at LGS Site 2.4-8 Summary of Run-off from Local Intense Precipitation 2.4-9 Surface Water Gauging Stations Upstream from LGS Site 2.4-10 Observed and Estimated Water Surface Elevations of Schuylkill River at LGS Site 2.4-11 Derived Values of Manning's (n) for Schuylkill River Main Channel 2.4-12 Computation of Convergence in Backwater Study 2.4-13 Conveyance, Slope, and Stage for Selected Discharges above 356,000 cfs at LGS Site 2.4-14 Chemical Analysis of Groundwater in the Brunswick Lithofacies in Montgomery County, Pennsylvania 2.4-15 Public Groundwater Supplies 2.4-16 Private Groundwater Users in the Vicinity of the Site 2.4-17 Observation Well Construction Data 2.4-18 Permeability Data 2.4-19 Chemical Analysis of Groundwater from Wells in the Brunswick Lithofacies at the LGS Site 2.4-20 Accidental Spill Analysis Parameters 2.4-21 Summary of Groundwater Level Measurements Used to Establish Design Bases for Hydrostatic Loading 2.4-22 Parameters Used in Rational Formula and Kirpich's Formula CHAPTER 02 2-xii REV. 21, SEPTEMBER 2022
LGS UFSAR LIST OF TABLES (cont'd)
TABLE TITLE 2.4-23 Drainage Flow Path Cross-Sectional Data 2.5-1 Modified Mercalli Intensity Scale of 1931 2.5-2 Earthquakes with Epicenters Within Approximately 200 Miles of the Site 2.5-3 Unconfined Compression Tests on Rock Samples 2.5-4 Summary of Engineering Properties of In Situ Soil 2.5-5 Summary of Design Parameters of Soils and Soil-Bentonite Mixtures 2.5-6 Soil Test Results Summary (Spray Pond Test Pits) 2.5-7 Results of Stability Analysis (2H:1V Rock Slope -Spray Pond) 2.5-8 Earthquakes With Epicenters Within Approximately 50 Miles of the Site 2.5-9 Design Parameters of Safety-Related Structures 2.5-10 Soil-Response Study: Summary of Parameters and Results 2.5-11 Representative Engineering Properties of Sound Foundation Rock 2.5-12 Static Moduli of Foundation Rock 2.5-13 Sonic Tests on Intact Cores CHAPTER 02 2-xiii REV. 21, SEPTEMBER 2022
LGS UFSAR CHAPTER 2 - SITE CHARACTERISTICS LIST OF FIGURES FIGURE TITLE 2.1-1 Site Location Map 2.1-2 General Site Area Map 2.1-3 Site Plan 2.1-4 Principal Facility Structures Plot Plan and Normal Release Points for Effluent 2.1-5 Population Distribution Grid, 0-10 Miles 2.1-6 Population Distribution Grid, 10-50 Miles 2.1-7 Low Population Zone 2.2-1 Transportation Routes and Pipelines 2.2-2 Industries Within the LPZ 2.2-3 Airports and Airway Routes 2.2-4 ARCO and Columbia Gas Pipelines 2.3.1-1 Tangential Velocity Distribution 2.3.1-2 Derivation of Design Tornado Wind Velocity 2.3.2-1 LGS versus Philadelphia Wind Direction Percentage 2.3.2-2 LGS versus Allentown Wind Direction Percentage 2.3.2-3 LGS versus Peach Bottom Wind Direction Percentage 2.3.2-4 Philadelphia Wind Direction Percentage 2.3.2-5 Allentown versus Allentown Wind Direction Percentage at 20 and 270 feet 2.3.2-6 Typical Light Wind Traces 2.3.3-1 Location of Meteorological Instruments 2.3.3-2 Elevations of Meteorological Instruments at LGS Site CHAPTER 02 2-xiv REV. 21, SEPTEMBER 2022
LGS UFSAR LIST OF FIGURES (cont'd)
FIGURE TITLE 2.3.4-1 Cumulative Probability Distribution of X/Q for the Exclusion Boundary 2.3.4-2 Cumulative Probability Distribution of X/Q for the LPZ Boundary 2.3.4-3 Accident X/Q Value for Release Periods Greater Than 2 Hours at the Exclusion Area Boundary 2.3.4-4 Accident X/Q Value for Release Periods Greater Than 2 Hours at the LPZ Boundary 2.3.5-1 Comparisons of Annual X/Q Values Using 175' Level with ESE Sector Wind 2.4-1 Site Plan 2.4-2 Schuylkill River Basin Water Use 2.4-3 Schuylkill River Dams Upstream from LGS Site 2.4-4 Intense Storm Site Runoff Pattern: General Plan 2.4-5 Intense Storm Site Runoff Pattern: Spray Pond and Cooling Tower Areas 2.4-6 Intense Storm Site Runoff Pattern: Sections and Details (3 sheets) 2.4-7 Schuylkill River Discharge Rating Curve at LGS Site 2.4-8 Schuylkill River Basin 2.4-9 Schuylkill River High-Water Profile: Flood of June 22, 1972 2.4-10 Schuylkill River Flood Frequency at Pottstown, PA 2.4-11 Schuylkill River Below Pottstown, PA, Backwater Section Location 2.4-12 Computed Water Surface Profile at LGS Site 2.4-13 Relation Between Friction Slope and Discharge of Schuylkill River at LGS Site 2.4-14 Floods Due to Dam Failure: River Profile and Dam Location Map 2.4-15 Observation Wells and Potentiometric Contours of Water Table: May 25, 1979 and May 31, 1988 2.4-16 Public Groundwater Suppliers Within 20 Miles of the Site 2.4-17 Groundwater Users Within One Mile of the Site CHAPTER 02 2-xv REV. 21, SEPTEMBER 2022
LGS UFSAR LIST OF FIGURES (cont'd)
FIGURE TITLE 2.4-18 Hydrographs of Observation Wells (Spray Pond Area and Power Block Area) 2.4-19 Daily Precipitation & Elevation of Water in Observation Wells, Power Block Area 2.4-20 Total Monthly Precipitation: 36 Month Monitoring Period 2.4-21 Cross-Section of Schuylkill River at Hypothetical Dam Site (Looking Upstream) 2.4-22 Cross-Section of Schuylkill River at LGS (Looking Upstream) 2.4-23 Cross-Section of Schuylkill River near Birdsboro (Looking Upstream) 2.4-24 Cross-Section of Representative Prismatic Channel 2.5-1 Physiographic Divisions 2.5-2 Regional Geology 2.5-3 Regional Geologic Section 2.5-4 Regional Stratigraphic Column 2.5-5 Regional Tectonic Map 2.5-6 Geology of the Limerick-Pottstown Area 2.5-7 Bouguer Gravity Anomaly Map 2.5-8 Aeromagnetic Intensity in the Limerick-Pottstown Region 2.5-9 Top of Rock Contours 2.5-10 Geologic Section 2.5-11 Geologic Section 2.5-12 Stratigraphic Section, Site and Vicinity 2.5-13 Geologic Map and Supplemental Photographs A through F, Power Block Excavation 2.5-14 Significant Earthquake Epicenters (1737 through January 1982) and Regional Tectonic Map 2.5-15 Earthquake Epicenters Within 25 Miles of Site CHAPTER 02 2-xvi REV. 21, SEPTEMBER 2022
LGS UFSAR LIST OF FIGURES (cont'd)
FIGURE TITLE 2.5-16 Tectonic Provinces 2.5-17 Plasticity Chart of In Situ Soil, Spray Pond Area 2.5-18 Summary of Consolidated-Undrained Triaxial Test Results of In Situ Soil 2.5-19 Summary of Cyclic Triaxial Test Results 2.5-20 Site Exploration 2.5-21 Geophysical Surveys 2.5-22 Graphic Logs 2.5-23 Unlined Spray Pond Estimated Flow Net 2.5-24 Typical Section of Spray Pond Slope 2.5-25 Summary of Liquefaction Analyses 2.5-26 Spray Pond Sections for Soil Profile 2.5-27 Spray Pond Soil Profile A 2.5-28 Spray Pond Soil Profile B 2.5-29 Spray Pond Soil Profile C 2.5-30 Test Pit Locations and Generalized Soil Profiles 2.5-31 Summary of Slope Stability Analyses 2.5-32 Summary of R Test Results of Soil-Bentonite Mixtures 2.5-33 Summary of CR R Test Results of Soil-Bentonite Mixtures 2.5-34 Soil Used In Soil-Bentonite Mixture Design 2.5-35 Plasticity Chart of Soils in Soil-Bentonite Mixture Design 2.5-36 Permeability of Soil-Bentonite Mixtures 2.5-37 Limits of Excavation for Power Block 2.5-38 Geologic Structure, Vicinity of Newark-Gettysburg Basin CHAPTER 02 2-xvii REV. 21, SEPTEMBER 2022
LGS UFSAR LIST OF FIGURES (cont'd)
FIGURE TITLE 2.5-39 Lateral Soil Pressure Diagrams 2.5-40 Shear Modulus Parameter, K2, versus Strain Property Type I Backfill Material 2.5-41 Damping Ratio versus Strain Property Type I Backfill Material 2.5-42 Geologic Map of Spray Pond 2.5-43 Spray Pond Geologic Sections 2.5-44 Cross Section of Condensate Tank Dikes 2.5-45 Variation of the Ratio of Static to Dynamic Young's Modulus with Rock Quality for Rock Masses 2.5-46 Shear Moduli and Damping Characteristics for Rock 2.5-47 Variation of Shear Modulus with Shear Strain for Sands 2.5-48 Location of Spray Pond Rock Slopes 2.5-49 Spray Pond Rock Slope Profiles CHAPTER 02 2-xviii REV. 21, SEPTEMBER 2022