Koppers is an AWE facility from 1956-1996 so workers are eligible to file for Part B claims.
In conjunction with the Kennecott Copper Co., Koppers conducted pilot plant tests for the production of uranium hexafluoride. In 1956, Koppers was licensed receive 2000 pounds of refined source material for use in studies toward the preparation of uranium dioxide for reactor fuel elements and 6,150 pounds of refined source material for use in research and pilot plant investigations on feed material processing. In October 1957, they were authorized to receive 110 pounds of normal uranium hexafluoride. Most of the research works appears to have taken place at the Koppers Research Department in Verona, PA.
During the period of residual contamination, as designated by the National Institute for Occupational Safety and Health and as noted in the dates above, employees of subsequent owners and operators of this facility are also covered under the Energy Employees Occupational Illness Compensation Program Act.
DOE Legacy Management has a Koppers webpage because it was considered for FUSRAP.
DOL provides Part B statistics on Koppers.
NIOSH lists statistics for Koppers dose reconstructions.
The Wall Street Journal's Waste Lands series provides information on Koppers.