Environmental assessment for the construction, operation, and decommissioning of the Waste Segregation Facility at the Savannah River Site Page: 4 of 39
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capability. DOE has found none of them to be acceptable for the same reasons
described in the ROD issued for the WMEIS on September 22, 1995.
Environmental Impacts: Impacts were evaluated for both normal operation and for
accident situations. Cumulative impacts were also evaluated.
" Normal Operation:
There would be no measurable impacts to the local economy as a result of the
proposed action. The change in site usage of domestic and potable water would not
be measurable. The change in volume of sanitary wastewater treated would not be
measurable. There is expected to be no measurable impact on the site streams and
wetlands as a result of this action. The WSF will not impact the amount of vehicle
traffic associated with activities at the site.
The dose to the maximally exposed individual at the site boundary for an atmospheric
radioactive release from the WSF was calculated using the EPA computer code,
CAP88. Using a typical B-25, the total radiation dose to the maximally exposed
individual is 1.29E-06 mrem. Stated another way, approximately 77,500 B-25s per
year could be processed by the WSF with a total dose to the maximally exposed
individual of 0.1 mrem. Operation of the WSF would result in doses well within
DOE limits. Thus the extremely low doses associated with the processing of 7000
B-25s per year (3-shift operation) would not contribute to off-site public exposure.
Some radiological exposure would be expected for the workers involved in the
proposed packaging and loading. The worker dose for individuals working at the
WSF was calculated using manifest data from 2,952 B-25s to generate an "average
B-25". The dose rate associated with sorting the contents of an average B-25
(0.00022 rem per hour) is very low. Each shift of operation is anticipated to involve
up to 10 workers for approximately 8 hours. Therefore, the proposed action would
not significantly contribute to the annual worker exposure.
Because the proposed action involves processing wastes at SRS in lieu of shipping the
waste offsite, the proposed action will involve less transportation than current
activities. As all transportation would occur within E-Area, there are no risks to the
public. As E-Area routinely handles and transports B-25s, no increased on-site
transportation risk is expected to be associated with this action. On-site transportation
risks associated with the WSF is bound by those addressed in the WMEIS.
" Accident:
As a maximum case 3-shift operation processing 7000 B-25s a year could involve
processing approximately 12 B-25s per shift. Changes in operations could result in
significant variations in the total number of B-25s being processed and or staged for4
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Environmental assessment for the construction, operation, and decommissioning of the Waste Segregation Facility at the Savannah River Site, report, January 1, 1998; Aiken, South Carolina. (https://digital.library.unt.edu/ark:/67531/metadc698364/m1/4/: accessed April 23, 2024), University of North Texas Libraries, UNT Digital Library, https://digital.library.unt.edu; crediting UNT Libraries Government Documents Department.