DOE/ORO/2327 Oak Ridge Reservation Annual Site Environmental ...

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Oak Ridge Reservation 1.2 History of the Oak Ridge Reservation The ORR area was first occupied by Native Americans more than 10,000 years ago, and members of the Overhill Cherokee tribe still lived in the East Tennessee region when European settlers arrived in the late 1700s. These settlers lived on farms or in four small communities called Elza, Robertsville, Scarboro, and Wheat. All but Elza were founded shortly after the Revolutionary War. In the early 1940s approximately 1,000 families inhabited the area. In 1942 the area that was to become the ORR was selected for use in the Manhattan Project because the Clinch River provided ample supplies of water, nearby Knoxville was a good source of labor, and the Tennessee Valley Authority (TVA) could supply the huge amounts of electricity needed. About 3,000 residents received court orders to vacate within weeks the homes and farms that their families had occupied for generations. The site’s wartime name was “Clinton Engineering Works.” The workers’ city, named Oak Ridge, was established on the reservation’s northern edge. The city grew to a population of 75,000 and was the fifth largest in Tennessee; however, it was not shown on any map. At the Y-12 NSC, south of the city, the electromagnetic separation method was used to separate uranium-235 ( 235 U) from natural uranium. A gaseous diffusion plant, later known as K-25, was built on the reservation’s western edge. Near the reservation’s southwest corner, about 16 km (10 miles) from Y-12, was a third facility, known as X-10 (or Clinton Laboratories), where the Graphite Reactor was built. The X-10 facility was a pilot plant for the larger plutonium production facilities built at Hanford, Washington. Two years after World War II ended, Oak Ridge was shifted to civilian control, under the authority of the U.S. Atomic Energy Commission. In 1959 the city was incorporated and a city manager and city council form of government was adopted by the community Since that time, the missions of these three major installations have continued to evolve and operations adapted to meet the changing defense, energy, and research needs of the United States. Their current missions, as well as the missions of several smaller DOE facilities/activities on the ORR, are described in Sect. 1.4 of this document. 1.3 Site Description 1.3.1 Location and Population The ORR lies within the Great Valley of East Tennessee between the Cumberland and Great Smoky Mountains and is bordered on two sides by the Clinch River (Fig. 1.1). The Cumberland Mountains are 16 km (10 miles) to the northwest; the Great Smoky Mountains are 51 km (31.6 miles) to the southeast. The ORR encompasses about 13,607 ha (33,624 acres) of mostly contiguous land owned by the federal government and under the management of the DOE (Fig. 1.2). Most of it lies within the corporate limits of the city of Oak Ridge; some of the area west of ETTP lies outside the city limits. Approximately 4,699 ha (11,611.5 acres) of the ORR is situated in Anderson County, and approximately 8,946 ha (22,106 acres) is in Roane County. The population of the 10-county region surrounding the ORR is about 927,200 with about 1.5% of its labor force employed on ORR (Fig. 1.3). Other municipalities within approximately 30 km (18.6 miles) of the reservation include Oliver Springs, Clinton, Lake City, Lenoir City, Farragut, Kingston, and Harriman (Fig. 1.4). Knoxville, the major metropolitan area nearest Oak Ridge, is located about 40 km (25 miles) to the east and has a population of about 183,550. Except for the city of Oak Ridge, the land within 8 km (5 miles) of the ORR is semirural and is used primarily for residences, small farms, and cattle pasture. Fishing, hunting, boating, water skiing, and swimming are popular recreational activities in the area. 1.3.2 Climate The climate of the Oak Ridge region may be broadly classified as humid subtropical and is characterized by significant temperature changes between summer and winter. The 30-year mean temperature for the period of 1980–2009 is 14.7°C (58.5°F). The average temperature for the Oak Ridge area during 2009 was 14.9°C (58.8°F). The coldest month is usually January, with temperatures averaging 1-2 Introduction to the Oak Ridge Reservation
Fig. 1.1. Location of the city of Oak Ridge. Fig. 1.2. The Oak Ridge Reservation. Annual Site Environmental Report Introduction to the Oak Ridge Reservation 1-3
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Uranium isotopes Annual Site Enviro
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6.9 Quality Assurance Annual Site E
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Oak Ridge Reservation expressed in
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Oak Ridge Reservation Source ID 7-4
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Oak Ridge Reservation 7-6 Dose Tabl
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Oak Ridge Reservation concentration
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Oak Ridge Reservation 7.1.3 Current
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Appendix A. Errata
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Appendix B. Glossary
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Oak Ridge Reservation biota — The
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Oak Ridge Reservation committed dos
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Oak Ridge Reservation hectare — A
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Oak Ridge Reservation quality facto
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Oak Ridge Reservation total dissolv
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Oak Ridge Reservation for winds fro
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Table D.1. Reference standards for
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TDEC and EPA Drinking Water Standar
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Chemical TDEC and EPA Drinking Wate
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Appendix E. National Pollutant Disc
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Appendix F. Radiation This appendix
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F.2.2 Non-ionizing Radiation Annual
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F.5.10 Dose from Consumer Products
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The ED from swimming in water conta
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Appendix G. Chemicals This appendix
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Table G.1. Chemical reference doses
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BW = body weight (70 kg), and Annua
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