Tennessee Department of Environment and Conservation - DOE Oversight Division. Status Report to the Public - December 1999 Page: 20 of 72
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Watershed, and (5) ETTP Watershed.
By using this approach, all sources of environmental contamination within a
watershed are evaluated together. This also ensures that comprehensive resources
are developed for eliminating or otherwise controlling these contaminated
sources. The watershed approach has many benefits:
/ It permits consistent cleanup goals and standards for the entire
/ It focuses on major problem areas and evaluates relative risk;
/ It optimizes remediation efforts;
/ It allocates limited cleanup resources efficiently;
/ It enhances the prioritization of cleanup activities;
/ It facilitates a coordinated technical approach and field implemen-
/ By combining decisions for multiple disposal areas into a reduced
number of Records of Decision (RODs), it significantly reduces
the documentation costs and schedules associated with the alter-
White Oak Creek Watershed - Bethel Valley
Oak Ridge National Laboratory dominates the Bethel Valley Watershed, which
occupies about 800 acres. The watershed is bounded to the south by the White
Oak Creek Watershed - Melton Valley and to the north by the Bear Creek Valley
The wastes located in the Bethel Valley portion of the watershed resulted from
nuclear reactors, radioisotope operations, particle accelerators, hot cell opera-
tions, physical, chemical, and biological research, fuel chemical reprocessing
research, and analytical laboratories. The watershed has been divided into three
main areas of contamination:
/ ORNL Main Plant Area: This includes active and inactive facili-
ties, four inactive research reactors, underground waste tanks,
pipelines, and surface impoundments. Problem contaminants are
strontium-98, cesium-137, and uranium.
/ Waste Area Grouping 3: This was used for the disposal of low-
level waste and transuranic waste.
/ Waste Area Grouping 17: East of ORNL, this area contains the
majority of ORNL's craft and machine shops and associated sup-
port facilities, which have contaminated groundwater and soil pri-
marily with volatile organic compounds (VOCs).
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Tennessee Department of Environment and Conservation - DOE Oversight Division. Status Report to the Public - December 1999, report, December 1, 1999; United States. (https://digital.library.unt.edu/ark:/67531/metadc724924/m1/20/: accessed April 25, 2019), University of North Texas Libraries, Digital Library, https://digital.library.unt.edu; crediting UNT Libraries Government Documents Department.