NC0003433_Table 6-10 Remedial Alternative Opinion of Probable Costs Interceptor Trench_20160229

TABLE 6-10
REMEDIAL ALTERNATIVE COST SUMMARY
CAPE FEAR STEAM ELECTRIC PLANT
DUKE ENERGY PROGRESS, LLC, MONCURE, NORTH CAROLINA
Interceptor Trench
Item
Quantity
Unit
Unit Cost
Total Cost
Source
Basis for Cost
Direct Capital Costs
Interceptor Trench Installation
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
Gravel
9,260
CY
$43.96
$407,070
RS Means
3/4"to 1-1/2"
Trench Box Rental
2
Mo
$2,900.00
$5,800
RS Means
Pump
5
EA
$1,046.55
$5,233
RS Means
22 GPM, 1/3 HP
Underground Electric
3,500
LF
$10.00
$35,000
Similar project
Trench Excavation
9,260
CY
$3.94
$36,500
RS Means
bulk, dragline, excavate and load on truck
Trench Backfill and Compaction
9,260
Cy
$3.60
$33,400
RS Means
Structural Excavation
45
CY
$86.44
$3,900
RS Means
Dewatering (8 hrs per day)
60
Day
$150.68
$9,100
RS Means
Cycle Hauling (wait, load, travel, unload or dump & return)
9,260
LCY
$16.52
$153,000
RS Means
Geotextile Subsurface Drainage
15,000
SY
$1.95
$29,300
RS Means
filtration fabric laid in trench, polypropylene
Public Sanitary Utility Sewerage Piping
500
LF
$2.30
$1,200
RS Means
HOPE Corrugated Type S, 4" diameter
Subdrainage Piping - Perforated Plastic
2,500
LF
$1.11
$2,800
RS Means
HOPE Perforated, 4"
Pump Station Manhole Extensions (6' diameter, up to 25' deep)
85
VLF
$634.92
$53,968
RS Means
Manhole = 8', extensions 17' @ 5 locations = 85'
Storm Drain Manhole (6' diameter x 8' depth)
5
Ea
$4,727.78
$23,639
RS Means
precast concrete, for outfall, one at each of the 5 pump stations
Installation Oversight (Geologist/Engineer and Equipment)
30
Days
$1,000.00
$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
P:\Duke Energy Progress. 1026\103. Cape Fear Ash Basin GW Assessment\20.EG_CAP\CAP Part 2\Tables\Final\Table 6-9 to 6-11 OPCs for MNA, Trench, & PRB.xlsx Page 1 of 2

TABLE 6-10
REMEDIAL ALTERNATIVE COST SUMMARY
CAPE FEAR STEAM ELECTRIC PLANT
DUKE ENERGY PROGRESS, LLC, MONCURE, NORTH CAROLINA
Interceptor Trench
Item
Quantity
Unit
Unit Cost
Total Cost
Source
Basis for Cost
Discharge System - Surface Water
Obtain or Modify Existing 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
$3,000.00
$9,000
Similar project
Road and Driveway Restoration
150
SY
$20.00
$3,000
Similar project
Indirect Capital Costs
Remedial Design
1
LS
$150,000
$150,000
Health & Safety
5 %
% DCC
$57,400
Similar project
Bonds & Insurance
5%
% DCC
$57,400
Similar project
Contingency
20%
% DCC
$229,600
Similar project
Construction Management & Engineering Services
15%
% DCC
$172,200
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
5
LS
$7,600
$38,000
RS Means
Present Worth
$41,500
Similar project
n=10&20, i=4.25%, PWF=1.09
Remedy Review
6
EA
$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
$1,223,000
Total Indirect Capital Costs
$666,600
Total 30 Year O&M Costs (Present Worth)
$1,547,600
Effectiveness Monitoring 30 Years (Table 6-9)
$3,537,400
TOTAL COST
$6,974,600
Prepared by: TOP Checked by: CIS
Notes:
LS = Lump Sum, EA = Each, FT = Foot, LF = Linear Foot, SF = Square Foot, SY = Square Yard, HR = Hour, WK = Week, Me = 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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