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Comanche Peak Nuclear Power Plant, Units 3 & 4 COL Application Part 2, FSAR CHAPTER 2 SITE CHARACTERISTICS TABLE OF CONTENTS Section Title Page 2.0 SITE CHARACTERISTICS.................................................................. 2.0-1 2.1 GEOGRAPHY AND DEMOGRAPHY.................................................. 2.1-1 2.1.1 Site Location and Description........................................................ 2.1-1 2.1.1.1 Specification of Location.......................................................... 2.1-1 2.1.1.2 Site Area Map .......................................................................... 2.1-3 2.1.2 Exclusion Area Authority and Control............................................ 2.1-3 2.1.2.1 Authority................................................................................... 2.1-3 2.1.2.2 Control of Activities Unrelated to Plant Operation ................... 2.1-4 2.1.2.3 Arrangements for Traffic Control ............................................. 2.1-4 2.1.2.4 Abandonment or Relocation of Roads..................................... 2.1-4 2.1.3 Population Distribution................................................................... 2.1-4 2.1.3.1 Population within 10 Mi............................................................ 2.1-5 2.1.3.2 Population between 10 and 50 Mi ........................................... 2.1-5 2.1.3.3 Transient Population................................................................ 2.1-6 2.1.3.3.1 Transient Population to 16 Km (10 Mi) .................................... 2.1-6 2.1.3.3.2 Transient Population 16 – 80 Km (10 – 50 Mi) ........................ 2.1-7 2.1.3.3.2.1 Recreational Transients..................................................... 2.1-8 2.1.3.3.2.2 Seasonal Population.......................................................... 2.1-8 2.1.3.3.2.3 Transient Workforce........................................................... 2.1-9 2.1.3.3.2.4 Special Facilities (Schools, Hospitals, Nursing Homes, etc.).................................................................................... 2.1-9 2.1.3.3.3 Total Permanent and Transient Populations ........................... 2.1-9 2.1.3.4 Low-Population Zone............................................................. 2.1-10 2.1.3.5 Population Center .................................................................. 2.1-10 2.1.3.6 Population Density................................................................. 2.1-11 2.1.4 Combined License Information.................................................... 2.1-11 2.1.5 References .................................................................................. 2.1-11 2-i Revision 4 Comanche Peak Nuclear Power Plant, Units 3 & 4 COL Application Part 2, FSAR TABLE OF CONTENTS (Continued) Section Title Page 2.2 NEARBY INDUSTRIAL, TRANSPORTATION, AND MILITARY FACILITIES ......................................................................................... 2.2-1 2.2.1 Locations and Routes.................................................................... 2.2-1 2.2.2 Descriptions................................................................................... 2.2-3 2.2.2.1 Description of Industrial Facilities ............................................ 2.2-3 2.2.2.2 Description of Products and Materials ..................................... 2.2-3 2.2.2.2.1 IESI Somervell County Transfer Station .................................. 2.2-3 2.2.2.2.2 Glen Rose WWTP ................................................................... 2.2-4 2.2.2.2.3 Glen Rose Medical Center....................................................... 2.2-4 2.2.2.2.4 Cleburne Propane.................................................................... 2.2-4 2.2.2.2.5 Decordova Compressor Station............................................... 2.2-4 2.2.2.2.6 Texas Department of Transportation Maintenance Station ..... 2.2-4 2.2.2.2.7 Wolf Hollow 1, LP .................................................................... 2.2-5 2.2.2.2.8 DeCordova SES ...................................................................... 2.2-5 2.2.2.2.9 Comanche Peak Nuclear Power Plant .................................... 2.2-5 2.2.2.2.10 Wheeler Branch Reservoir and Water Treatment Facility ....... 2.2-5 2.2.2.2.11 Mining and Quarrying Activities ............................................... 2.2-5 2.2.2.2.12 Military Facilities ...................................................................... 2.2-6 2.2.2.3 Description of Pipelines ........................................................... 2.2-6 2.2.2.4 Description of Waterways ........................................................ 2.2-7 2.2.2.5 Description of Highways .......................................................... 2.2-7 2.2.2.6 Description of Railroads........................................................... 2.2-8 2.2.2.7 Description of Airports and Airways......................................... 2.2-8 2.2.2.7.1 Airports .................................................................................... 2.2-8 2.2.2.7.2 Airways .................................................................................... 2.2-9 2.2.2.8 Projections of Industrial Growth............................................. 2.2-10 2.2.3 Evaluation of Potential Accidents ................................................ 2.2-10 2.2.3.1 Determination of Design Basis Events .................................. 2.2-11 2.2.3.1.1 Explosions ............................................................................. 2.2-11 2.2.3.1.1.1 Transportation Routes ..................................................... 2.2-11 2.2.3.1.1.2 Nearby Industrial Facilities............................................... 2.2-12 2-ii Revision 4 Comanche Peak Nuclear Power Plant, Units 3 & 4 COL Application Part 2, FSAR TABLE OF CONTENTS (Continued) Section Title Page 2.2.3.1.1.3 On-site Explosion Hazards .............................................. 2.2-13 2.2.3.1.1.4 Gas Wells - Explosives .................................................... 2.2-13 2.2.3.1.2 Flammable Vapor Clouds (Delayed Ignition) ......................... 2.2-14 2.2.3.1.2.1 Transportation Routes ..................................................... 2.2-14 2.2.3.1.2.2 Industrial Facilities ........................................................... 2.2-14 2.2.3.1.2.3 Pipeline ............................................................................ 2.2-15 2.2.3.1.2.4 Gas Wells ........................................................................ 2.2-16 2.2.3.1.3 Toxic Chemicals .................................................................... 2.2-16 2.2.3.1.3.1 Background...................................................................... 2.2-17 2.2.3.1.3.2 Source Evaluation............................................................ 2.2-18 2.2.3.1.3.2.1 Mobile Sources ................................................................ 2.2-18 2.2.3.1.3.2.2 Stationary Sources .......................................................... 2.2-18 2.2.3.1.4 Fires....................................................................................... 2.2-19 2.2.3.1.5 Collision with Intake Structure ............................................... 2.2-20 2.2.3.1.6 Liquid Spills............................................................................ 2.2-21 2.2.3.1.7 Radiological Release ............................................................. 2.2-21 2.2.3.2 Effects of Design Basis Events.............................................. 2.2-22 2.2.4 Combined License Information.................................................... 2.2-22 2.2.5 References .................................................................................. 2.2-22 2.3 METEOROLOGY ................................................................................ 2.3-1 2.3.1 Regional Climatology..................................................................... 2.3-1 2.3.1.1 General Climate....................................................................... 2.3-1 2.3.1.2 Regional Meteorological Conditions for Design and Operating Bases....................................................................................... 2.3-9 2.3.1.2.1 General .................................................................................... 2.3-9 2.3.1.2.2 Hurricanes ............................................................................. 2.3-11 2.3.1.2.3 Tornadoes.............................................................................. 2.3-13 2.3.1.2.4 Thunderstorms....................................................................... 2.3-16 2.3.1.2.5 Lightning ................................................................................ 2.3-16 2.3.1.2.6 Hail......................................................................................... 2.3-16 2.3.1.2.7 Air Pollution Potential............................................................. 2.3-17 2-iii Revision 4 Comanche Peak Nuclear Power Plant, Units 3 & 4 COL Application Part 2, FSAR TABLE OF CONTENTS (Continued) Section Title Page 2.3.1.2.8 Precipitation ........................................................................... 2.3-19 2.3.1.2.9 Dust Storms ........................................................................... 2.3-23 2.3.1.2.10 Ultimate Heat Sink ................................................................. 2.3-23 2.3.1.2.11 Extreme Winds ...................................................................... 2.3-23 2.3.2 Local Meteorology