7304_UpperPiedmontMSWLF_2023 Financial Assurance_FID1799021_20230605

HODGES, HARBIN,
NEWBERRY & TRIBBLE, INC.
Consulting Engineers
June 5, 2023
Ms. Sarah M. Moutos
Environmental Program Consultant
Division of Waste Mgmt - Solid Waste Section
North Carolina Dept of Environmental Quality
217 W. Jones Street
Raleigh, NC 27603
Re: Upper Piedmont Regional MSW Landfill
Person County, North Carolina
Facility Permit No. 73-04
Closure / Post -Closure Cost
HHNT Project No. 6703-304-05 / 6703-304-14
Dear Ms. Moutos:
We have enclosed the updated Closure/Post-Closure Cost Estimate for Financial Assurance on the subject
project. Please note, these costs have been updated to 2023 dollars. These costs are summarized below:
Closure Costs............................................................................................... $10,441,958.82
Post -Closure Costs......................................................................................... $6,630,430.00
Potential Assessment and Corrective Action ................................................. $2,608,361.26
Total Financial Assurance............................................................................ $19,680,750.08
The annual financial assurance mechanism will be submitted under separate cover after these costs
have been approved. Should you have any questions, please call.
Sincerely,
HODGES, HARBIN, NEWBERRY & TRIBBLE, INC.
f< � C�
K Matthew Cheek, P.E.
Professional Engineer
KMC/sc
Enclosure
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cc: Sherri Stanley (w/ enclosure) Matt Einsmann, PE (w/ enclosure)
Allen Gaither, PE (w/ enclosure) Scott Harless (w/ enclosure)
3920 Arkwright Road, Suite 101 • Macon, Georgia 31210 [phone] • Fax [phone] • www.hhnt.com
SAVANNAH • ATLANTA • Macon • STATESBORO • GREENVILLE, SC

UPPER PIEDMONT REGIONAL LANDFILL
FACILITY PERMIT NO.73-04 PERSON COUNTY, NC
CLOSURE COST ESTIMATE
2023 UPDATE
GENERAL
Largest Area: Cells No. 1 - 4, 5A, 6A, 5B, & 6B
= 3,018,708 s.f. = 69.3 acres
CLOSURE CARE COST ESTIMATE
1 Contractor Mobilization
1
L.S. @
2 Subgrade Preparation
3,018,708
s.f. @
3 6" Topsoil
3,018,708 s.f. x 0.5 ft. —
27 ft3/cy =
55,902
c.y. @
4 18" Cover Soil
3,018,708 s.f. x 1.5 ft. —
27 ft3/cy =
167,706
c.y. @
5 18" Infiltration Layer (1 x 10-5 cm/sec)
45,729 s.f. x 1.5 ft. — 27 ft3/cy =
6 Drainage Layer (Geocomposite)
Material
Labor
7 FML
Material & Installation
8 Permanent Vegetation
9 Silt Fence
10 Excelsior Matting
11 Final Disposal of Waste & Cleanup
12 Downdrain Construction
13 Stormwater Diversion Berms
14 Stormwater Channels & Lining
15 Sediment Basin Cleanout
16 Landfill Gas Extraction System Expansion
17 Waste Limit Survey for Deed Recordation
18 Engineering and Closure Certification
19 CQA Monitoring & Reporting (including Field & Lab testing)
20 Certification Surveying
$53,500.00 = $53,500.00
$0.23 = $694,302.84
$6.25 = $349,387.50
$7.15 = $1,199,097.90
2,541 c.y. @ $12.75 = $32,391.38
3,018,708
s.f.
@
$0.52 =
$1,569,728.16
3,018,708
s.f.
@
$0.16 =
$482,993.28
3,018,708
s.f.
@
$0.62 =
$1,871,598.96
69.3
ac
@
$3,150.00 =
$218,295.00
2,625
11
@
$4.25 =
$11,156.25
335,412
s.y.
@
$2.10 =
$704,365.20
630
tons
@
$53.00 =
$33,390.00
3,541
l.f.
@
$83.00 =
$293,903.00
31,617
11
@
$23.75 =
$750,903.75
13,530
s.y.
@
$96.00 =
$1,298,880.00
3,150
c.y.
@
$7.50 =
$23,625.00
1
L.S.
@
$110,000.00 =
$110,000.00
1
L.S.
@
$6,950.00 =
$6,950.00
69.3
ac
@
$2,850.00 =
$197,505.00
69.3
ac
@
$6,900.00 =
$478,170.00
69.3
ac
@
$892.00 =
$61,815.60
TOTAL CLOSURE COST (2023)
$10,441,958.82

UPPER PIEDMONT REGIONAL LANDFILL
FACILITY PERMIT NO. 73-04 PERSON COUNTY, NC
POST CLOSURE CARE COST ESTIMATE
2023 UPDATE
Constructed Area Covered by this Est. = 69.3
1 Water Monitoring & Statistics
(Includes Appendix I sampling, analysis & reporting for 2 events per year.)
Groundwater 12 wells @ 2
event/yr
@
$1,550.00 =
$37,200.00
Surface Water 2 locations @ 2
event/yr
@
$219.00 =
$876.00
Leachate 1 sample @ 2
event/yr
@
$1,025.00
$2,050.00
2 Methane Gas Monitoring 5 wells @ 4
events/yr
@
$26.75 =
$535.00
3 Sediment & Erosion Control,
(including Inspections, Repairs to Cap, Slope & Vegetation) 1
L.S.
@
$17,500.00
$17,500.00
4 Sediment Basin Cleanout
1,100
C.Y.
@
$7.90 =
$8,690.00
5 Leachate Collection Treatment & Analysis (Average over 30 years)
1
L.S.
@
$39,320.00 =
$39,320.00
6 Leachate System Maintenance (including camera & jetting every 5 yrs)
1
L.S.
@
$12,500.00 =
$12,500.00
7 Alarm System Monitoring
1
L.S.
@
$1,150.00 =
$1,150.00
8 Engineering Inspections & Reporting
4
yr
@
$1,600.00 =
$6,400.00
9 Air Emissions Testing & Reporting
1
yr
@
$3,200.00 =
$3,200.00
10 Operation & Maintenance of the Methane Gas Collection System
1
yr
@
$62,000.00 =
$62,000.00
11 Mowing
2
yr
@
$5,500.00 =
$11,000.00
12 Site Maintenance & Repair
(including fencing, gates, security, paths to final cover system & 1
L.S.
@
$1,450.00 =
$1,450.00
monitoring network)
ANNUAL POST
CLOSURE CARE COST (2023)
$203,871.00
X 30 YEARS
$6,116,130.00
13 Leachate System Decommissioning (one-time cost)
2
Ea.
@
$80,200.00 =
$160,400.00
14 LFG System Decommissioning (one-time cost)
(including conversion to passive vents) 1
L.S.
@
$353,900.00 =
$353,900.00
ANNUAL POST
CLOSURE CARE COST (2023)
$514,300.00
TOTAL 30 YEAR COST (2023)
$6,630,430.00