ML20246M265

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Response to Hastert Committee on Public Works & Transportation Question 8 for 890713 Hearing
ML20246M265
Person / Time
Issue date: 07/13/1989
From:
NRC
To: Hastert J
HOUSE OF REP.
Shared Package
ML20246M176 List:
References
CCS, HASTERT-890713, NUDOCS 8909070125
Download: ML20246M265 (2)


Text

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QUESTION 8. In assessing the risk posed by transportation, what portion of.

that risk occurs in the unloading and loading of material, and what portion occurs in the transportation itself?

ANSWER.

The NRC does not maintain information relating to the apportionment of nonradio 'l risks to the separate activities of loading, unloading and transporting uranium mill tailings. The nonradiological risk from transporting.

tailings would be quivalent to those risks from transporting like matetfals, such as copper or bauxite tailings. For the only reclamation begun under NRC's authority to regulate uranium mill tailings which involves transportation of tailings (Edgemont, South Dakota) NRC dio not account for risks of loading and unloading trucks, as opposed to risks from accidents involving the use of trucks to transport tailings. As mentioned previously, the probability of a

. fatality _from a transportation accident was estimated by NRC to be 0.06 [ Final Environmental Statement related to the decommissioning of the Edgemont Uranium

. Mill,NUREG-0846, June 1982].

DOE estimated the risks from work-related (nonradiological) accidents for the Salt t.ake City remedial action under the UMTRA Project. Accidental death risk to truckers from stabilizing the uranium tailings in place was 0.13 versus 0.47 for. transporting the tailings to the Clive site 137 kilometers away. DOE estimated the accidental death risk to construction workers to be 0.025 for stabilization in place versus 0.045 for relocating the uranium tailings to the Clive site. These risk estimates represent the expected number of deaths i

8909070125 890s u FDR l

ORG NE ED PDC

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f00 STION 8. (C:ntinu:d). 2 3

among the work force _ involved in the specific activity of construction or b [ transportation'duringtheentireremedialaction. These estimates were documented in DOE's Final Environmental Impact Statement for Remedial Actions 4, the'SaltLakeCity,Utahsite[ DOE /EIS-0099-F, July 1984]andwerebased en DOE manpower schedules and Department of Transportation incidence' rates.

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