NC0001422_Appdx N - Remedial Alternative Cost Estimate Details_20200814

Corrective Action Plan Update August 2020
L.V. Sutton Energy Complex
SynTerra
APPENDIX N
REMEDIAL ALTERNATIVE COST ESTIMATE
DETAILS

Table 1: Summary of Capital and Annual Costs
Source Area 1 - Remedial Alternative 2
Source Area 2 - Remedial Alternative 2
L.V. Sutton Energy Complex
Wilmington, NC
Capital Costs
TASK #
TASK
UNIT
QUANTITY RATE
COST
1.0
Design/Engineering/Site Preparation
Pre -Design Field Planning and Modeling
LUMP SUM
1
$75,000
$75,000
Design Document/Work Plan
LUMP SUM
1
$140,000
$146,000
Institutional Controls
LUMP SUM
1
$20,000
$201000
$235,000
2.0
Monitoring Well Installation
Monitoring Well Installation
EACH
0
$0
$0
$0
3.0
Project Management
Project Management (10% Capital Cost)
LUMP SUM
1
$24,000
$24,000
$24,000
Total Capital Cost
$259,000
Operations, Maintenance & Monitoring Costs
TASK #
TASK
UNIT
QUANTITY
RATE
COST
1.0
10perations and Maintenance
Operations and Maintenance (Continued Groundwater Extraction at the Eastern Property Line)
YEAR
5
$0
$0
$0
2.0
Effectiveness Monitoring
Groundwater Sampling Event*
YEAR
5
$0
$0
$0::::l
3.0
Reportin
Annual Reporting
EACH
5
$0
$0
Five -Year EMP Review Report
EACH
1
1 $180,000
$180,600
$180,000
4.0
Project Management
Project Management 10% Operations, Maintenance & Monitoring Cost
LUMP SUM
1
$18,000
$18,000
$18,000
Total Operations, Maintenance, and Monitoring Cost
$198,000
Present Worth Ana/vsis
Year(s)
I Cost Type
Total Cost
Discount
Factor
Present
Value
0
ICapital Costs
$259,000
1.000
$259,000
1-5
Operations, Maintenance & Monitoring
$0
4.076
$0
5
1 Five -Year EMP Review Report
$198,000
0.784
$155,138
Total Life Cycle Cost $415,000
Notes:
1. *Costs for sampling the existing monitoring wells are not included, as existing well monitoring is budgeted in Duke Energy's Asset Retirement Obligation program
2. Life cycle represents net present value of expenditures with capital costs incurred in Year 0 and annual costs incurred thereafter. Discount Rate of 5% assumed.
3. Costs presented herein represent a best estimate at this time. Actual costs may change based on a variety of factors during implementation.
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