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(launched in 1977) continue to obtain their total spacecraft

power needs from their onboard isotope generators.

The current generation of Radioisotopic Thermoelectric Generators
(RTGS) under development will deploy the General Purpose Feat
Source (GPHS) for the NASA Galileo and International solar
Polar Missions, planned to be shuttle-launched in 1986. Each
GPHS RTG weighs 123 pounds and produces about 285 we.

Special Isotopic Power Sources

The FY 1985 isotope power development progran has three major activities. First is the readiness and shipment of the GPRS

flight units to be used in the silicon-germanius generator for the NASA Galileo and International Solar Polar Missions. The

second effort is the development of a new modular RTG concept

that offers the potential for a more advanced, Ruch lighter

generator, i.e., high specific power to weight ratio, for

future space missions. During FY 1985, ground demonstration system (GDS) fabrication and assembly will be accomplished. The third activity involves RTG development for special military applications. In FY 1985, emphasis will be placed on the GDS fabrication, completion of final design definition, and the safety evaluation of the RTG.

Advanced Systems Evaluation (Space Nuclear Reactor )

The Space Reactor Development Program and the Space Power

Advanced Reactor Program were consolidated to form the Space Nuclear Reactor (SP-100) Program, to support a Memorandum of Agreement signed on February 11, 1983, by the DOD's Defense Advanced Research Projects Agency, NASA's Office of Aeronautics and Space Technology, and doe's Office of Nuclear Energy. The agreement establishes the relative responsibilities of the three agencies during the conceptual development phase of the program. In FY 1984, several reactor system concepts are being

examined to determine which concept would enhance or enable

future civilian and military space missions. Long lead efforts

in technology development and related tasks began in 1983 and

will continue through 1985. A key decision is planned during FY 1985 on whether to proceed with a ground engineering prototype

demonstration.

If a decision is made to proceed to a prototype,

substantial increases in funding will be necessary in FY 1986 and beyond for the ground engineering test, for associated facilities improvements at a DOE laboratory or contractor location, and for the transition of the program into more detailed design and development activities.

The current multi-agency agreement expires at about the end of PY 1985. A new agreement will be necessary if a decision is made to proceed to the SP-100 Ground Engineering Test Phase (FY 1986-1989). Upon selection of a specific system for the final development, the management structure will be changed to a more traditional line structure with separate activities and clearly defined interfaces for each agency. DOE will be responsible for developing the nuclear subsystem during this phase.

During PY 1985, several reactor development system contractors

will be funded in order to develop reactor conceptual designs for space system applications. Conceptual designs will be developed, and a baseline, backup, and growth design will be completed. System and nuclear safety program activities are to be continued in preparation for potential ground engineering systems tests scheduled for FY 1986.

Remedial Action Program

The FY 1985 budget request for the Remedial Action Program is $152.0 million, an increase of $53.0 million over the FY 1984 appropriation. The distribution of funds among the program

elements is as follows:

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The overall objective of the Remedial Action Program is to

treat or stabilize radioactive wastes and perform required

decontamination and decommissioning at contaminated DOF and

legislatively authorized nongovernment facilities and sites. The major activities are: (1) the formerly Utilized Sites Remedial Action Program (FUS RAP); (2) remedial action at Grand Junction, Colorado (P.L. 92-314, as amended); (3) the Uranium Mill Tailings Remedial Action Program (UMTRAP) for inactive uranium mill tailings sites (P.L. 95-604); (4) management of certain radioactively contaminated Department facilities declared surplus and resulting principally from civilian nuclear energy programs; and (5) demonstration of the solidification of high-level radioactive wastes at West Valley for final disposal (P.L. 96-368).

Formerly Utilized Sites Remedial Action Program (FUSRAP)

FUSRAP provides for remedial actions at former nuclear processing

facilities, most privately owned, which became radioactively

contaminated from Manhattan Engineer District or Atomic Energy Commission activities and which have not been decontaminated

sufficiently to meet current health effects quidelines

To

remedy the situation, the contamination will be either stabilized

in place, with restrictions placed on use of the site, or removed and disposed of at another location. Authority derived from the Atomic Energy Act of 1954, as amended, currently exists for conducting remedial actions at 15 sites. This authority is based on our review of the involvement of agency predecessors in activities at these sites. Review of other sites involved

in past activities of the agency's predecessors is continuing and may result in the addition of sites to the program. Congress added four new sites and $5.0 million in the PY 1984 Energy and Water Development Appropriations Act with direction to initiate, as a priority action, a decontamination research and development project at these sites and vicinity properties, bringing the program site total to 19. The Department's Oak Ridge Operations Office has the lead for implementing the program.

In FY 1984, we expect to complete much of the cleanup work for contaminated properties near the DOE-owned Niagara Falls Storage Site at Lewiston, New York. Other remedial actions on this site will be described in my testimony on the Surplus facilities Proyram. We are also planning to complete remedial action at the Middlesex Landfill, New Jersey, and at the University of Chicago, Illinois. Material contaminated with uranium will be excavated from the Middlesex Landfill and stored temporarily at the nearby DUE-owned Middlesex Sampling Plant. At the University of Chicago, about 600 cubic feet of contamination in several laboratories will be removed and sent to the DOE disposal site at Hanford, Washington.

Preparations are underway to begin decontamination actions at Maywood, New Jersey; Wayne /Pequannock, New Jersey; Colonie, New York; and Hazelwood, Missouri -- sites which were added to the

program in FY 1984. Cleanup of residential properties at

Maywood and Wayne/Pequannock is scheduled to begin in March 1984, at Colonie in May 1984, and at Hazelwood in July 1984. Our general approach to these projects is to give priority to cleanup of contaminated vicinity properties and to store the waste temporarily on each processing site. We also will take steps to prevent any further offsite contamination from these four sites. For the longer term, the Congressional direction is to decontaminate the sites. Because of the large volumes of waste involved, we have asked each of the three States in which the waste is located to designate a site for disposal within the State. DOE would then proceed to acquire the site and effect disposal. These actions are expected to require more

than 10 years to complete, at total costs exceeding $100 million. Due to the large quantities of material and the large costs associated with relocation, we will examine from the technical, environmental, and economic viewpoints the alternative of stabilizing the wastes at their present locations for two of the sites (Maywood and Colonie) and report the results to Congress.

Other survey, preliminary engineering, and environmental review

activities are underway for the Albany Research Center at Albany, Oregon; the Du Pont plant at Deepwater, New Jersey; and the Middlesex Sampling Plant at Middlesex, New Jersey. We are also continuing to monitor the Palos Park site in Illinois and the St. Louis Airport Storage Site in Missouri.

In PY 1985, the cleanup of contaminated properties near the Niagara Falls Storage Site at Lewiston, New York, will be completed. We will continue the priority decontamination projects at Maywood, Wayne/Pequannock, Colonie, and Hazelwood. Cleanup of the residential properties in Maywood, the adjacent properties in Rochelle Park and Colonie, and Latty Avenue in Hazelwood will be completed, and work will start on other vicinity properties. Design engineering and environmental analysis will be completed for the Albany, Oregon, site.

Grand Junction Remedial Action Program

Under Title II of Public Law 92-314, Congress authorized

financial assistance to the State of Colorado to limit radiation

exposure resulting from the use of uranium mill tailings for

construction purposes in Grand Junction, Colorado. This State/Federal cooperative effort with the State of Colorado is

administered by the Colorado Department of Health through the Grand Junction Area Office. The remedial action provides for removal of uranium mill tailinys from the premises of about

626 structures where radon daughter exposures exceed the Surgeon

General's guidelines.

Public Law 95-236 extended the time for

property owners to apply for inclusion in the program, which

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