NC0001422_Table 6-7 MNA Cost Summary_20160201

TABLE 6-7
MONITORED NATURAL ATTENUATION COST SUMMARY
L.V. SUTTON ENERGY COMPLEX
DUKE ENERGY PROGRESS, LLC, WILMINGTON, NC
Monitored Natural Attenuation - 57 Wells Sampled
Item Quantity Unit Unit Cost Total Cost Source Basis for Cost
Direct Capital Costs
Pre -design Field Assessment
1
1S
$50,000
$50,000
Similar project
Ash basin closure not included
Mobilization / Demobilization
1
LS
$5,000
$5,000
Similar project
Upgrade Roads/ Accessibility
1
LS
$10,000.00
$10,000
Similar project
Equipment Decontamination
0
EA
$570.00
$0
Similar project
Drilling and Materials (6 wells)
Soo
LF
$84.00
$42,000
Similar project
2 clusters (upper, lower surficial and Pee Dee wells)
Drilling and Materials (6" outer surface casing for double -cased wells)
0
LF
$125.00
$0
Similar project
Well Development
60
MR
$120.00
$7,200
Similar project
10 hours per well
Installation Oversight (Geologist)
10
Day
$2,000.00
$20,000
Similar project
Indirect Capital Costs
Health & Safety
5%
% DCC
4,210
Similar project
Bonds & Insurance
5 %
% DCC
4,210
Similar project
Contingency
20%
% DCC
16,840
Similar project
Construction Management & Engineering Services
15%
% DCC
12,630
Similar project
Groundwater Sampling and Reporting - Years 1 - 5
Semi-annual Well Sampling - Labor and Supplies
2
6 Mo
$43,000.00
$86,000
Similar project
2 people, 6 days, 5 nights, equipment (26 wells, apprx. 5 wells per day)
Semi-annual Well Sampling - Laboratory Analysis
2
6 Mo
$10,500.00
$21,000
Similar project
26 groundwater samples
Validation and Report Preparation
2
6 Mo
$20,000.00
$40,000
Similar project
Semi-annual report preparation
Present Worth $649,800
Similar project
n=5 yrs, 1=4,25%, PWF=4.42
Groundwater Sampling and Reporting - Years 6 - 30
Annual Well Sampling - Labor and Supplies
1
YR
$43,000.00
$43,000
Similar project
2 people, 6 days, 5 nights, equipment (26 Wells, apprx. 5 wells per day)
Annual Well Sampling - Laboratory Analysis
1
YR
$10,500.00
$10,500
Similar project
26 groundwater samples
Validation and Report Preparation
1
YR
$20,000
$20,000
Similar project
Annual report preparation
Present Worth $1,118,700
Similar project
n=5 -30, 1=4.25%, PWF=15.22
Remedy Review 1 EA $100,000 $100,000
Similar project
Completed every five years
Present Worth $308,000
Similar project
n=5, 10, 15, 20, 25, 30, 1=4.25%, PWF=3.08
Total Direct Capital Costs $134,200
Total Indirect Capital Costs $37,890
Total 30 Year O&M Costs (Present Worth) $2,076,500
TOTAL COST $2,248,590
Prepared By: TSP Checked By: RLP
Notes:
LS = Lump Sum, EA = Each, LF = Linear Foot, MR = Hour, Mo = Month, YR = Year, DCC = Direct Capital Cost, O&M = Operation and Maintenance, PWF = Present Worth Factor , n = Time, I = Interest rate (provided by Duke Progress, LLC)
Present Worth was calcualted using the Uniform Series Present Worth Factor at: http://www.ajdesigner.com/phpdismuntfactors/uniform_series_present_worth_equation.php
Assumptions:
No additional wells are needed due to basin closure.
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