Life cycle cost and risk estimation of environmental management options Page: 2 of 10
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Baseline Environmental Management Report (BEMR). A risk methodology was also developed by the Idaho
National Engineering Laboratory Environmental Management Integration Program. The combination of cost
analysis and risk analysis capabilities has allowed the ESA program to address EM alternatives from new
LITCO's Economic and Systems Analysis program has developed an extensive knowledge in waste management
facility cost development, engineering model design, and risk applications. This knowledge, which was initially
developed to support EM-30, has now been additionally focused on EM-50 initiatives to identify cost-effective and
reduced-risk alternatives. The ESA studies will be used by EM to gain a greater understanding of the
opportunities for cost reductions and provide a quantitative means for comparison of DOE policy options.
The benefits to EM-50 have included:
- Providing a baseline for comparison of Technology Development alternatives,
" Providing a method to communicate results on new technologies to EM-30,
" Providing a bridge between an "Average Site's" approach and site-specific applicability,
" Helping to identify needs for technology development,
" Providing a basis for prioritizing opportunities for risk or cost reduction.
The benefits to EM-30 have included:
" Better focused Technology Development supporting key EM-30 policy options,
" Better understanding of the costs and benefits of advanced technology options,
" Better integration of a strategic planning basis,
" Consistent methodology enabling comparative analysis of waste management alternatives,
" Better understanding of cost implications for various complex-wide configuration options.
The need for cost/risk integration has been identified by the DOE. The DOE considers risk and life cycle costs in
establishing program priorities. The ESA program has developed a tool called the System Cost Model (SCM)
which has facilitated the cost/risk analysis of complex EM alternatives. The SCM allows analysis of various
technology processing options for mixed low-level waste (MLLW), low-level waste (LLW), and transuranic waste
(TRUW)--both mixed and non-mixed. The use of the SCM has helped LITCO integrate the requirements of EM-30
and EM-50. The two models which have been developed to support cost/risk analysis are described as follows:
System Cost Model (SCM) - The SCM was initially developed for EM-35 to support sensitivity analysis
of waste management costs for the BEMR. The SCM produces complex-wide life cycle costs for
treatment, storage, disposal, and transportation of MLLW, LLW, and TRUW. The SCM also includes a
database of site-specific waste management information including: waste inventory volumes and
generation rates, treatment processing schemes, existing and planned facilities, site-specific cost factors and
labor rates, and schedules.
System Cost Model - Risk (SCM-R) - The SCM-R has been developed to a conceptual level for EM-35 to
support cost/risk evaluations. The SCM-R is an add-on to the base SCM. The fundamental risk
methodology is based on the work done by the Environmental Management Integration Program (EMIP) at
the INEL. Approximately 1000 simplified risk assessments were produced for the EMIP. The SCM-R will
produce simplified relative risk assessments to show baseline life cycle risk, worker and public risk, waste
disposal risk, and waste transportation risk. All categories of waste, from spent fuel to low-level waste, can
be accommodated, as can all types of waste (radioactive, hazardous, and mixed). The method is based on
the fundamental equations of risk (e.g., as used in CERCLA risk assessments). The risk calculations are
based on the product of probability and consequences. The equations are broken down into risk elements,
e.g., inventory quantities, toxicities, confinement barriers. Look-up tables provide values to be used for
each risk element.
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Shropshire, D. & Sherick, M. Life cycle cost and risk estimation of environmental management options, article, April 1, 1996; Idaho Falls, Idaho. (https://digital.library.unt.edu/ark:/67531/metadc667804/m1/2/: accessed April 21, 2019), University of North Texas Libraries, Digital Library, https://digital.library.unt.edu; crediting UNT Libraries Government Documents Department.