DRAFT
                                        TAB E




MEMORANDUM

TO:       Members of the Advisory Committee on Human Radiation
Experiments

FROM:     Advisory Committee Staff

DATE:     December 5, 1994

RE:       Richland/Hanford Site Visit


     On November 22, members of the Committee and some staff
attended a series of briefings at Hanford.

     Michele Stenhjem Gerber is a historian who works for
Westinghouse and author of "On the Home Front: The Cold War
Legacy of the Hanford Nuclear Site." She described the layout and
function of the facilities at Hanford and escorted the group to
the T Plant where the Green Run was conducted in 1949.

     Bruce Napier of the Hanford Environmental Dose
Reconstruction (HEDR) Project provided a briefing on the Hanford
dose reconstruction. He noted that the daily production records
and hourly meteorological readings allowed a fairly complete
reconstruction of the environmental fate of released
radionuclides. Levels of human exposure depended on knowledge of
dietary and other habits. The HEDR project has produced maps of
typical exposures as well as specific exposure estimates for
numerous individuals. Mr. Napier noted that the HEDR document
search process over a number of years led to some improvements in
the control of the Hanford document collections. 

     The Hanford search team also briefed members on their
efforts. Advisory Committee members questioned the Hanford
representatives about the search and raised questions about how
to guarantee the thoroughness and credibility of the search
process.

     Ron Kathren briefed members on the Uranium and Transuranic
registries. Advisory Committee members questioned him about
consent requirements and outlined the concerns expressed before
the Advisory Committee by citizens.