NC0005363_Table 6-10_20160201

TABLE 6-10
REMEDIAL ALTERNATIVE COST SUMMARY - INTERCEPTOR TRENCH
W. H. WEATHERSPOON POWER PLANT
DUKE ENERGY PROGRESS, LLC, LUMBERTON, NC
Interceptor Trench
Item
Quantity
Unit
Unit Cost
Total Cost
Source
Basis for Cost
Direct Capital Costs
Extraction System
Pre -design Field Assessment
1
LS
$75,000
$75,000
Similar project
Ash Basin closure in place (Cost not included)
Mobilization / Demobilization
2
LS
$5,000
$10,000
Similar project
10 day work week
Upgrade Roads/ Accessibility
1
LS
$20,000.00
$20,000
Similar project
Concrete
12,000
Cy
$43.96
$527,520
RS Means
3/4" to 1-1/2"
Pump
1
EA
$1,050.00
$1,050
RS Means
propylene body, housing and impeller, 22 GPM, 1/3 HP, 40' head
Underground Electric
4,000
LF
$10.00
$40,000
Similar project
Trench Excavation
12,000
CY
$3.61
$43,400
RS Means
bulk, dragline, excavate and load on truck
Sheet Piling
120,000
SF
$24.85
$2,982,000
RS Means
38 psf, 25' excavation, extract and salvage, excludes wales
Public Sanitary Utility Sewerage Piping
100
LF
$2.30
$300
RS Means
HDPE Corrugated Type S, 4" diameter
Geotextile Subsurface Drainage
7,500
Sy
$1.95
$14,700
RS Means
filtration fabric laid in trench, polypropylene
Storm Drain Manhole (6' diameter x 4' depth)
1
Ea
$2,850.00
$2,850
RS Means
precast concrete
Storm Drain Manhole (6' diameter x from 4' to 40')
36
VLF
$615.01
$22,140
RS Means
precast concrete
Installation Oversight (Geologist and Equipment)
15
Day
$2,000.00
$30,000
Similar project
Treatment System - Holding Tank
Mobilization / Demobilization
1
LS
$10,000.00
$10,000
Similar project
Upgrade Roads/ Accessibility
1
LS
$10,000.00
$10,000
Similar project
Site Prep, Foundation, Electrical, Security
1,600
SF
$80.00
$128,000
Similar project
40' x 40' area for site prep
Instrumentation and Controls, Equilization Tank, Piping, and Valves
1
LS
$40,000.00
$40,000
Similar project
Discharge System - Surface Water
Obtain NPDES Permit
1
LS
$40,000.00
$40,000
Similar project
Mobilization / Demobilization
1
LS
$10,000.00
$10,000
Similar project
Effluent Pipe (Trenching, backfilling, and surface restoration)
1,000
FT
$18.00
$18,000
Similar project
Transfer Pumps
2
LS
$10,000.00
$20,000
Similar project
Casing Pipe for Road Crossings
3
EA
$3,000.001
$9,0001
Similar project
Road and Driveway Restoration
150
Sy
$20.00
$3,000
Similar project
P:\Duke Energy Progress. 1026\109. Weatherspoon Ash Basin GW Assessment Plan\20.EG_CAP\CAP Part 2\Tables\Table 6-8 to 6-11.xlsx Page 1 of 2

TABLE 6-10
REMEDIAL ALTERNATIVE COST SUMMARY - INTERCEPTOR TRENCH
W. H. WEATHERSPOON POWER PLANT
DUKE ENERGY PROGRESS, LLC, LUMBERTON, NC
Interceptor Trench
Item
Quantity
Unit
Unit Cost
Total Cost
Source
Basis for Cost
Indirect Capital Costs
Remedial Design
1
LS
$150,000
$150,000
Health & Safety
5%
% DCC
$199,100
Similar project
Bonds & Insurance
5%
% DCC
$199,100
Similar project
Contingency
30%
% DCC
$1,194,600
Similar project
Construction Management & Engineering Services
15%
1 % DCC
1
$597,3001
Similar project
Annual Operating and Maintenance
Operator
12
Mo
$4,400.00
$52,800
Similar project
80 hours per month
Treatment System Sampling
52
WK
$300.00
$15,600
Similar project
Analysis
Miscellaneous Repairs
1
YR
$3,000.00
$3,000
Similar project
Present Worth
$1,198,100
Similar project
n=30 yrs, i=4.25 %, PWF=16.78
New Equipment (Years 10 & 20)
Replacement Pump
1
I LS
1 $7,600
$7,600
RS Means
Present Worth
$8,300
Similar project
n=10&20, 1=4.25%, PWF=1.09
Remedy Review
6
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
$4,057,000
Total Indirect Capital Costs
$2,340,100
Total 30 Year O&M Costs (Present Worth)
$1,514,400
Effectiveness Monitoring 30 Years (Table 6-7)
$3,145,600
TOTAL COST
$11,060,100
Prepared by: TCP Checked by: RLP
Notes:
LS = Lump Sum, EA = Each, FT = Foot, LF = Linear Foot, SF = Square Foot, SY = Square Yard, HR = Hour, WK = Week, Mo = Month, YR = Year, O&M = Operation and Maintenance, DCC = Direct Captial 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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