NC0005363_Table 6-8_20160201

TABLE 6-8
REMEDIAL ALTERNATIVE COST SUMMARY - MNA
W. H. WEATHERSPOON POWER PLANT
DUKE ENERGY PROGRESS, LLC, LUMBERTON, NC
Monitored Natural Attenuation - 23 Wells Sampled
Item
Quantity
Unit
Unit Cost I
Total Cost
Source
Basis for Cost
Direct Capital Costs
Pre -design Field Assessment
1
LS
$50,000
$50,000
Similar project
Ash Basin closure in place (Cost not included)
Mobilization / Demobilization
1
LS
$5,000
$5,000
Similar project
10 day work week
Upgrade Roads/ Accessibility
1
LS
$10,000.00
$10,000
Similar project
Equipment Decontamination
4
EA
$570.00
$2,300
Similar project
Drilling and Materials (4 wells, 290' total well depth)
290
LF
$84.00
$24,400
Similar project
Installation of 4 replacement wells (MW -08R, MW-08IRI, MW-
44SAR, and MW-44IR)
Drilling and Materials (6" outer surface casing for double -cased wells)
125
LF 1
$125.00
$15,700
Similar project
Install MW -08I and MW -44I with double casing
Well Development
32
HR 1
$120.00
$3,900
Similar project
8 hours development per well
Installation Oversight (Geologist)
6
Day 1
$2,000.001$12,000
Similar project
Indirect Capital Costs
Health & Safety
5%
% DCC
$3,700
Similar project
Bonds & Insurance
5%
% DCC
$3,700
Similar project
Contingency
20%
% DCC
$14,700
Similar project
Construction Management & Engineering Services
15%
% DCC
$11,000
Similar project
Groundwater Sampling and Reporting - Years 1 - 5
Semi-annual Well Sampling - Labor and Supplies
3
Each
$34,800.00
$104,400
Similar project
2 people, 5 days, 4 nights, equipment (23 wells, apprx. 5 wells
per day)
Semi-annual Well Sampling - Laboratory Analysis
3
Each
$9,050.00
$27,150
Similar project
23 groundwater samples
Validation and Report Preparation
3
Each
$12,000.00
$36,000
Similar project
Semi-annual report preparation
Present Worth
$740,600
Similar project
n=5 yrs, i=4.25%, PWF=4.42
Groundwater Sampling and Reporting - Years 6 - 30
Annual Well Sampling - Labor and Supplies
2
Each
$34,800.00
$69,600
Similar project
2 people, 5 days, 4 nights, equipment (23 wells, apprx. 5 wells
per day)
Annual Well Sampling - Laboratory Analysis
2
Each
$9,050.00
$18,100
Similar project
23 groundwater samples
Validation and Report Preparation
2
Each
$20,000
$40,000
Similar project
Annual report preparation
Present Worth
$1,943,600
Similar project
n=5 -30, i=4.25%, PWF=15.22
Remedy Review
1 6
1 EA 1
$100,000
$600,000
Similar project
Completed every five years
Present Worth
$308,000
Similar project
n=5, 10, 15, 20, 25, 30, i=4.25%, PWF=3.08
Total Direct Capital Costs
$123,300
Total Indirect Capital Costs
$33,100
Total 30 Year O&M Costs (Present Worth)
$2,992,200
TOTAL COST
$3,148,600
Prepared by: TCP Checked by: RLP
Notes:
LS = Lump Sum, EA = Each, LF = Linear Foot, HR = Hour, Mo = Month, YR = Year, O&M = Operation and Maintenance, DCC = Direct Capital Cost, 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/phpdiscountfactors/uniform_series_Present_worth_equation.php
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