NC0024406_BCSS_Appendix L_20191231

Corrective Action Plan Update December 2019
Belews Creek Steam Station
SynTerra
APPENDIX L
REMEDIAL ALTERNATIVE COST ESTIMATE
DETAILS

Appendix L
Table 1: Summary of Capital and Annual Costs
Remedial Alternative 1
Monitored Natural Attenuation
Belews Creek Steam Station
Belews Creek, North Carolina
Capital Costs
TASK #
TASK
UNIT
QUANTITY RATE
COST
1.0
Design/Engineering/Site Preparation
Pre -Design Field Planning
LUMP SUM
1
$136,000
$136,000
Design Document/Work Plan
LUMP SUM
1
$244,000
$244,000
$380,000
2.0
Monitoring Well Installation
Monitoring Well Installation
EACH
10
$15,800
$158,000
Monitoring Well Development
EACH
10
$1,300
$13,000
Installation of Dedicated Sampling Equipment
EACH
10
$1,400
$14,000
$185,000
3.0
Project Management
Project Management 10% Capital Cost
LUMP SUM
1
$57,000
$57,000
$57,000
Total Capital Cost
$622,000
Operations, Maintenance & Monitoring Costs
TASK #
TASK
UNIT
QUANTITY
RATE
COST
1.0
Groundwater Sampling
Groundwater Sampling EventA
EACH
2
$9,000
$18,000
$18,000
2.0
IWO Maintenance
Annual Well Maintenance and Replacement
LUMP SUM
1
$31,000
$31,000
$31,000
3.0
Reportin
Annual Reporting
EACH
1
$91,000
$91,000
Five -Year Review Report
EACH
0.2
$88,000
$18,000
$109,000
4.0
1 Project Management
Project Management 10% Annual Cost
LUMP SUM
1
$16,000
$16,000
$16,000
Total Annual Cost
$174,000
Present Worth Analysis
Years
Cost Type
Total Cost
Discount
Factor
Present
Value
0
Capital Costs
$622,000
1.000
$622,000
1-30
jAnnual Costs
$174,000
15.372
$2,675,000
Total Life Cycle Cost $3,297,000
Notes:
1. A - Groundwater sampling event includes 10 newly -installed monitoring wells. Additional monitoring costs are covered under existing programs.
2. Life cycle represents net present value of expenditures with capital costs incurred in Year 0 and annual costs incurred thereafter for 30 years. 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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Appendix L
Table 2: Summary of Capital and Annual Costs
Remedial Alternative 2
Groundwater Extraction and Treatment
Belews Creek Steam Station
Belews Creek, North Carolina
Capital Costs
TASK #
TASK
UNIT
QUANTITY RATE
COST
1.0
Design/Engineering/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
1
$23,000
$23,000
Monitoring Well Development
EACH
1
$5,000
$5,000
Installation of Dedicated Sampling Equipment
EACH
1
$4,000
$4,000
$32,000
3.0
Remediation Well Installation
Extraction Well Installation
EACH
103
$35,534
$3,660,000
Well Development
EACH
103
$2,524
$260,000
Conveyance Piping and Electrical
LUMP SUM
1
$3,021,000
$3,021,000
$6,941,000
4.0
Project Management
Project Management 10% Capital Cost
LUMP SUM
1
$744,000
$744,000
$744,000
Total Capital Cost
$8,184,0 00
Operations, Maintenance & Monitoring Costs
TASK #
TASK
UNIT
QUANTITY
RATE
COST
1.0
10perations and Maintenance
Remediation Wells Operations and Maintenance
LUMP SUM
1
$320,000
$320,000
$320,000
2.0
Groundwater Sampling
Groundwater Sampling EventA
EACH
2
$4,000
$8,000
$8,000
3.0
IWO Maintenance
Annual Well Maintenance and Replacement
LUMP SUM
1
$30,000
$30,000
$30,000
4.0
Reportin
Annual Reporting
EACH
1
$91,000
$91,000
Five -Year Review Report
EACH
0.2
$88,000
$18,000
$109,000
5.0
1 Project Management
Project Management 10% Annual Cost
LUMP SUM
1
$47,000
$47,000
$47,000
Total Annual Cost
$514,000
Present Worth Analysis
Years
Cost Type
Total Cost
Discount
Factor
Present
Value
0
Capital Costs
$8,184,000
1.000
$8,184,000
1-30
jAnnual Costs
$514,000
15.372
$7,902,000
Total Life Cycle Cost $16,086,000
Notes:
1. A - Groundwater sampling event includes 1 newly -installed monitoring well. Additional monitoring costs are covered under existing programs.
2. Life cycle represents net present value of expenditures with capital costs incurred in Year 0 and annual costs incurred thereafter for 30 years. 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
Page 1 of 1
Arcadis

Appendix L
Table 3: Summary of Capital and Annual Costs
Remedial Alternative 3
Groundwater Extraction combined with Clean Water Infiltration and Treatment
Belews Creek Steam Station
Belews Creek, North Carolina
Capital Costs
TASK #
TASK
UNIT
QUANTITY RATE
COST
1.0
Design/Engineering/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
M nitoring Well Installation
Monitoring Well Installation
EACH
1
$23,000
$23,000
Monitoring Well Development
EACH
1
$5,000
$5,000
Installation of Dedicated Sampling Equipment
EACH
1
$4,000
$4,000
$32,000
3.0
Remediation Well Installation
Extraction Well Installation
EACH
113
$35,000
$3,950,000
Clean Water Infiltration Well Installation
EACH
47
$27,600
$1,297,000
Well Development
EACH
160
$2,500
$402,000
Horizontal Well Installation
EACH
1
$334,000
$334,000
Conveyance Piping and Electrical
LUMP SUM
1
$3,867,000
$3,867,000
$9,850,000
4.0
IClean Water Infiltration Treatment System Installation
Clean Water Infiltration Treatment System Installation
LUMP SUM
1
$776,000
$776,000
$776,000
5.0
Project Management
Project Management 10%Capital Cost
LUMP SUM
1
$1,113,000
$1,113,000
$1,113,000
Total Capital Cost
$12,238,000
Operations, Maintenance & Monitoring Costs
TASK #
TASK
UNIT
QUANTITY
RATE
COST
1.0
10perations and Maintenance
Operations and Maintenance
LUMP SUM
1
$453,000
$453,000
$453,000
2.0
lGroundwater Sampling
Groundwater Sampling Event°
EACH
2
$4,000
$8,000
$8,000
3.0
JWell Maintenance
Annual Well Maintenance and Replacement
LUMP SUM
1
$30,000
$30,000
$30,000
4.0
Reporting
Annual Reporting
EACH
1
$91,000
$91,000
Five -Year Review Report
EACH
0.2
$88,000
$18,000
$109,000
5.0
Project Management
Project Management (10% Annual Cost)
LUMP SUM
1
$60,000
$60,000
$60,000
Total Annual Cost
$660,000
Present Worth Analvsis
Years
CostType
Total Cost
Discount
Factor
Present
Value
0
Capital Costs
$12,238,000
1.000
$12,238'000
1-30
JAnnual Costs
$660,000
15.372
$10,146,000
Total Life Cycle Cost $22,384,000
Note:
1. A - Groundwater sampling event includes 1 newly -installed monitoring well. Additional monitoring costs are covered under existing programs.
2. Life cycle represents net present value of expenditures with capital costs incurred in Year 0 and annual costs incurred thereafter for 30 years. 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
Page 1 of 1
Arcadis