Heppenstall is an AWE facility from 1955-1989 so workers are eligible to file for Part B claims.
Under contract to the Mallinckrodt Chemical Co., the site was used to heat, press and water quench uranium "dingots". Approximately 100,000 pounds of normal uranium metal was shaped at Heppenstall over about a 6-month period. Records indicate that the forging was done on a 1000 ton press on a schedule of two days per month by a Heppenstall crew of eight men.
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 an Heppenstall webpage because it was considered for FUSRAP.
DOL provides Part B statistics on Heppenstall.
NIOSH lists statistics for Heppenstall dose reconstructions.