NC0003425_Rox_Appendix K_20191231

Corrective Action Plan Update December 2019
Roxboro Steam Electric Plant
SynTerra
APPENDIX K
REMEDIAL ALTERNATIVE COST ESTIMATE
DETAILS

Appendix K
Table 1: Summary of Capital and Annual Costs
Source Area 1 - EAB/Industrial Landfill/LCID
Alternative 2 - Groundwater Extraction with 2L at EAB CB by 12/31/2029
Roxboro Steam Electric Plant
Semora, North Carolina
Capital Costs
TASK #
TASK
UNIT
QUANTITY
RATE
COST
1.0
Desi NEngineering/Site Preparation
Pre -Design Field Planning
LUMP SUM
1
$136,000
$136,000
Design Document/Work Plan
LUMP SUM
1
$298,000
$298,000
Permitting
LUMP SUM
1
$33,000
$33,000
$467,000
2.0!Monitoring
Well Installation
Monitoring Well Installation
EACH
0
$0
$0
$0
3.0
Remediation Wells Installation
Extraction Well Installation
EACH
32
$68,156
%181,000
Well Development
EACH
32
$5,844
$187,000
Conveyance Piping and Electrical
LUMP SUM
1
$761,000
$761,000
$3,129,000
4.0
Project Management
Project Management 10 % Capital Cost
LUMP SUM
1
$360,000
$360,000
$360,000
Total Capital Cost
$3,956,000
Operations, Maintenance & Monitoring Costs
TASK #
TASK
UNIT
QUANTITY
RATE
COST
1.0
!Operations and Maintenance
Remediation Wells Operations and Maintenance
LUMP SUM
1
$360,000
$360000
$360:000
2.0
Groundwater Sampling
Groundwater Sampling Event
EACH
0
$0
$0
$0
3.0
lWell Maintenance
Annual Well Maintenance and Replacement
EACH
1
$156,000
$156,000
$156,000
4.0
Reporting
Annual Reporting
EACH
1
$90,000
$90,000
Five -Year Review Report
EACH
0.2
$88,000
$18,000
$108,000
5.0
1 Project Management
Project Management 10% Annual Cost
LUMP SUM
1
$62,000
$62,000
$62,000
Total Annual Cost
$686,000
Present Worth Analvsls
Years
Cost Type
Total Cost
Discount
Factor
Present
Value
0
Capital Costs
$3,956,000
1.000
$3,956,000
1-9
Annual Costs
$686,000
6.108
$4,190,000
10-12
Post -Remedy Monitoring
$218,000
1.755
$383,000
13
Well Abandonment Costs
$58,000
0.530
$31,000
Total Life Cycle Cost $8,560,000
Note:
1. Life cycle represents net present value of expenditures with capital costs incurred in Year 0, annual costs incurred thereafter, and well abandonment in the last year. Discount Rate
of 5% assumed.
2. 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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Appendix K
Table 2: Summary of Capital and Annual Costs
Source Area 3 - DFAHA/GSA
Alternative 2 - Groundwater Extraction
Roxboro Steam Electric Plant
Semora, North Carolina
Capital Costs
TASK #
TASK
UNIT
QUANTITY
RATE
COST
1.0
Desi NEngineering/Site Preparation
Pre -Design Field Planning
LUMP SUM
1
$136,000
$136,000
Design Document/Work Plan
LUMP SUM
1
$298,000
$298,000
Permitting
LUMP SUM
1
$33,000
$33,000
$467,000
2.0!Monitoring
Well Installation
Monitoring Well Installation
EACH
0
$0
$0
$0
3.0
Remediation Well Installation
Extraction Well Installation
EACH
22
$56,636
$1,246,000
Well Development
EACH
22
$6,636
$146,000
Conveyance Piping and Electrical
LUMP SUM
1
$612,000
$612,000
$2,004,000
4.0
Project Management
Project Management 10 % Capital Cost
LUMP SUM
1
$247,000
$247,000
$247,000
Total Capital Cost
$2,718,000
Operations, Maintenance & Monitoring Costs
TASK #
TASK
UNIT
QUANTITY
RATE
COST
1.0
!Operations and Maintenance
Remediation Wells Operations and Maintenance
LUMP SUM
1
$349,000
$349,000
$349,000
2.0
Groundwater Sampling
Groundwater Sampling Event
EACH
0
$0
$0
$0
3.0
lWell Maintenance
Annual Well Maintenance and Replacement
EACH
1
$100,000
$100,000
$100,000
4.0
Reporting
Annual Reporting
EACH
1
$90,000
$90,000
Five -Year Review Report
EACH
0.2
$88,000
$18,000
$108,000
5.0
1 Project Management
Project Management 10% Annual Cost
LUMP SUM
1
$56,000
$56,000
$56,000
Total Annual Cost
$613,000
Present Worth Analvsis
Years
CostType
Total Cost
Discount
Factor
Present
Value
0
capital Costs
$2,718,000
1.000
$2,718,000
1-30
Annual Costs
$613,000
14.372
$8,810,000
Total Life Cycle Cost $11,528,000
Note:
1. Life cycle represents net present value of expenditures with capital costs incurred in Year 0, annual costs incurred thereafter for 30 years. Discount Rate of 5 % assumed.
2. 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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Appendix K
Table 3: Summary of Capital and Annual Costs
Source Area 3 - DFAHA/GSA
Alternative 3 - Groundwater Extraction with Clean Water Infiltration
Roxboro Steam Electric Plant
Semora, North Carolina
Capital Costs
TASK #
TASK
UNIT
QUANTITY
RATE
COST
1.0
Desi NEngineering/Site Preparation
Pre -Design Field Planning
LUMP SUM
1
$136,000
$136,000
Design Document/Work Plan
LUMP SUM
1
$298,000
$298,000
Permitting
LUMP SUM
1
$33,000
$33,000
$467,000
2.0!Monitoring
Well Installation
Monitoring Well Installation
EACH
0
$0
$0
$0
3.0
Remediation Wells Installation
Extraction Well Installation
EACH
18
$56,556
$1,018,000
Clean Water Infiltration Well Installation
EACH
27
$44,593
$1,204,000
Well Development
EACH
45
$6,533
$294,000
Conveyance Piping and Electrical
LUMP SUM
1
$952,000
$952,000
$3,468,000
4.0
Clean Water Infiltration Treatment System Installation
Clean Water Infiltration Treatment System Installation
LUMP SUM
1
$779,000
$779,000
$779,000
5.0
Project Management
Project Management 10% Capital Cost
LUMP SUM
1
$471,000
$471,000
$471,000
Total Capital Cost
$5,185,000
Operations, Maintenance & Monitoring Costs
TASK #
TASK
UNIT
QUANTITY
RATE
COST
1.0
!Operations and Maintenance
Operations and Maintenance
LUMP SUM
1
$418,000
$418,000
$418,000
2.0
Groundwater Sampling
Groundwater Sampling Event
EACH
0
$0
$0
$0
3.0
Well Maintenance
Annual Well Maintenance and Replacement
EACH
1
$173,000
$173,000
$173,000
4.0
Reporting
Annual Reporting
EACH
1
$90,000
$90,000
Five -Year Review Report
EACH
0.2
$88,000
$18,000
$108,000
5.0
Project Management
Project Management 10% Annual Cost
LUMP SUM
1
$70,000
$70,000
$70,000
Total Annual Cost
$769,000
Present Worth Analvsis
Years
CostType
Total Cost
Discount
Factor
Present
Value
0
Capital Costs
$5,185,000
1.000
$5,185,000
1-9
Annual Costs
$769,000
6.108
$4,697,000
10-12
Post -Remedy Monitoring
$218,000
1.755
$383,000
13
Well Abandonment Costs
$65,000
0.530
$34,000
Total Life Cycle Cost $10,299,000
Note:
1. Life cycle represents net present value of expenditures with capital costs incurred in Year 0, annual costs incurred thereafter, and well abandonment in the last year. Discount Rate
of 5% assumed.
2. Costs presented herein represent a best estimate at this time. Actual costs may change based on a variety of factors during implementation.
Page 1 of 1
Arcadis