3406_MSWLF_FAestimate_20160229

WAKE)
WASTE MANAGEMENT
February 26, 2016
NC Department of Environmental Quality
Division of Waste Management — Solid Waste Section
1646 Mail Service Center
Raleigh, North Carolina 27699-1646
Attn: Ms. Donna Wilson
WASTE MANAGEMENT
Closed Site Management Group
1850 Parkway Place
Suite 600
Marietta, GA 30067
Ph.770-590-2936 _ �~
ViEC ��
S... .......,.. x
Subject: Submittal of Justification for Reduction in 2016 Post -Closure Care Cost Estimate
Piedmont Landfill and Recycling Center,
Kernersville, North Carolina
Permit Number 34-06
Dear Ms. Wilson:
As required under 15A North Carolina Administrative Code 13B .1628(a)(5), please find
enclosed three (3) copies of a written justification for a reduction in the post -closure cost
estimate for the above referenced facility. The Piedmont Landfill and Recycling Center was
entered into Post -Closure Care in accordance with Rule .1627(d) as of October 29, 2004.
Accordingly, a reduction in the post -closure cost estimate commensurate with the remaining
post -closure care period is appropriate. The enclosed justification for a reduction in the post -
closure cost estimate has been developed to account for this year's cost estimates as required
under Rule .1628(c)(1)(B) and the reduction in the post -closure care period, and is being
submitted for Division review and approval in accordance with Rule .1628(c)(1)(D). Please
note that the landfill is no longer subject to Title V or NSPS requirements as of February 8,
2016. It is anticipated that once Division approval is received, Policy No. CPCS94-0010
issued by National Guaranty Insurance Company of Vermont currently on file with NC DEQ
will be revised accordingly.
The procedure used to develop the enclosed estimate of post -closure care costs is based on
cost estimates provided to Waste Management of Carolinas by its engineering consultants for
the Calendar Year 2016. The estimate of annual costs is then multiplied by the remaining
years of post -closure care required to determine the revised amount of post -closure care
financial assurance required.
Please consider the information provided and advise as to whether Waste Management of
Carolinas may proceed with adjusting Policy No. CPCS94-0010 (with National Guaranty
Insurance Company of Vermont) for post -closure care of the Piedmont Landfill and
Recycling Center to a total amount of $1,378,527.

Ms. Donna Wilson
February xx, 2016
Page 2 of 2
If you have any questions or require additional information, please contact me at your earliest
convenience at [phone], or Mousa Maimoun at [phone].
Sincerely,
Waste Management of Carolinas, Inc.
Alexis)der Lacsamana, P.E.
District Manager, Closed Sites
Enclosures: Post -Closure Cost Estimate (3 copies)
C: Ed Mussler (NC DEQ)

Ooininn of Cnst fnr Pnst Closure Care fnr Year 2016 Submittal
Facility Name: Piedmont Landfill & Recycling Center
Permit No.: 34-06
Facility Address: 9901 Freeman Road
Kernersville, North Carolina
FacilityOwner: Waste Management of Carolinas, Inc.
Date:
02/23/16
Calculated By:
MM
Reviewed By.
LB
Revision No.:
3
Project No.:
00392.1601.12
Task No.:
Task 5
In accordance with Rule 01627(d) the Piedmont Landfill 30-Year Post Closure Care (PCC) Period began on October 29, 2004
Date of Closure:
2004
Area Landfilled:
65 acres
Period of Post -Closure Responsibility
30 years
Remaining Years of Post -Closure Care 19 years
Basis for Period:
North Carolina Solid Waste Regulations
PCC Submittal Year:
2016
POST CLOSURE COSTS:
cjw f I`G
ENGINEEF:? 1N13
9731-F Southern Pine Blvd.
Charlotte, North Carolina 28273
phone - 704.817.2037
fax - 704.837.2010
www.joyceengineering.com
Water Quality Monitoring (Groundwater & Surface Water)
Notes & Guidance Values
a.
Number of sampling events per year
1 sampling event per year
1 event(s) per year
b.
Monitoring costs per event
$3,600
$3,600 per event
c.
Laboratory/Analytical costs
$3,200
$3,200 per event
d.
Miscellaneous Engineering Fees
$4,000
$4,000 per year
e.
Total annual monitoring costs
[(b + c) x a + dj
$10,800 per year
f.
Remaining Post -closure period
19
19 years
g
Total costforpost-losureperiod
(exfJ
8205M
,andfill Gas Monitoring
a. Quarterly LFG Probe Monitoring (4 events per year) 4 event(s) per year
b Unit cost for V S675 per event $675 per event
C. Total annual cost forpost-closure period (a x h) $2,700
d. Remaining Post -closure period 19 19 years
e. Total costforpost-closureperiad (cxd) mum
a. Hauling and Disposal Cost of Leachate to Private Industrial Treatment Facility $0.0898 per gallon $0.0898 $ per gallon
b Annual Leachate Volume Disposed (per 2015 actual disposal volmne)t 394,633 gallons per year 394,633 gallons per year
C. Total leachate management cost (a x c) $35,438 per year
d. Post -closure period 19 19 years
e. Total cost forpost-closure period (c x d) 3673.323
*To be conservative, leachate generation is based on 2015 actual disposal rate. Please note that leachate volume disposed has been declining by approximately 25% per year.
Routine Maintenance and Repairs
a. Mowing frequency
2
2 visit(s) per year
b. Area to be maintained (acres)
66
66 acres
C. Mowing unit cost per visit
$88
$88 per acre.visit
d. Total mowing cost per year
(a x b x c)
$11,616 per year
e. Landfill cover maintenance/repairs cost per year (repair cover and reseeding as neede(
$12,000 per year
$12,000 per year
f. Post -closure period
19
19 years
g. Total cost for post -closure period
((d + e) xJ7
394�TQ
Total Past -Closure Care Cast Estimates $1,378,527
Piedmont Landfill Recycling Center Joyce Engineering, Inc.
Financial Assurance Page 1 of 1 Rev. February 2016