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DOE-STD-3014-96
APPENDIX A
Since the precedent has already been established in an existing DOE
standard, it is reasonable to take 25 times the DOE-STD-1027-92 Hazard
Category 2 thresholds as limiting inventories, above which there would be
potential injuries to workers at a distance of 300 m (984 ft) in the
above-specified weather conditions.
b.
Hazardous material exposure - Emergency Response Planning Guideline
Level 3 (ERPG-3) as established by the AIHA, to the maximally exposed
individual beyond 300 m (984 ft) from the facility.
Basis: The ERPG-3 is "The maximum airborne concentration below
which it is believed that nearly all individuals could be exposed for up to
1 hour without experiencing or developing life threatening health effects."
In spirit, the ERPG-3 seems to be closer to the IDLH than does the
ERPG-2, so it is reasonable to choose it as a guideline for the impact on
workers.
c.
Hazardous material exposure where ERPG-3 has not been established -
the IDLH, as established by the NIOSH, to the maximally exposed
individual beyond 300 m (984 ft) from the facility.
Basis: As noted above, the IDLH is "The maximum concentration of a
substance in air from which healthy male workers can escape without
loss of life or irreversible health effects under conditions of a maximum
30-minute exposure time." Thus, the IDLH has been specifically defined
with worker protection in mind.
The analyst is warned against creating more work than is necessary by
pursuing evaluation against the onsite screening guidelines when the
circumstances do not warrant it. As discussed above, these guidelines
are provided to address specific, unique cases in which special
consideration of worker exposure resulting from aircraft crash would
provide meaningful additional insights. The default position is that the
A-5


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