| Popis: |
The results of a radiological survey of the former Haist property, Tonawanda, New York, are presented in this report. The property served as a repository for uranium ore tailings during the period 1944--46. It was released for unrestricted use following a survey conducted in 1958 by the Health and Safety Laboratory (HASL), operated then by the Atomic Energy Commission. The property is now owned by Ashland Oil, Inc., and is used for oil refining operations. The survey was undertaken to determine whether the present radiological status of the property is consistent with current radiation protection guidelines and to determine the extent of movement of radioactive residues from the property via natural means such as surface run-off. The survey included measurement of external gamma and surface beta-gamma radiation levels on and near the site; radium and uranium concentrations in the soil on the site; concentrations of radium, uranium, and thorium in water samples collected on the site and in the drainage paths between the site and the Niagara River; radium concentrations in mud samples taken from the drainage areas; and radon daughter levels in the only building on the site. The results indicate that the residues on the site do not pose an immediate health hazard, assuming that residues remain in place (except for normal drainage) and that the site continues to be used in the manner in which it is presently used. However, potential health hazards could result from some uses of the site. In particular, if buildings were to be constructed in certain areas on the site, significant concentrations of radon daughters could develop in these structures. |
