1107_BuncombeCo_CDLF_PH6PTCApp_DIN28480_20170915

September 15, 2017

Mr. Allen Gaither, PE
Division of Waste Management – Solid Waste Section
North Carolina Department of Environmental Quality
2090 US Highway 70
Swannanoa, North Carolina 28778

RE: Permit Approval to Construct CDLF Phase 6
Buncombe County Landfill – Permit # 11-07
Buncombe County, North Carolina

Dear Mr. Gaither:

On behalf of Buncombe County, McGill Associates and Environmental Infrastructure
Consulting are pleased to present this submittal for the Permit Approval to Construct for proposed
Construction and Demolition Landfill (CDLF) Phase 6 at the Buncombe County Landfill. The
County is approaching the limits of their existing Phase 5 CDLF, with the lifetime capacity
projected to be reached in July of 2018, and the County would like to proceed with the development
of CDLF Phase 6, which received initial Site Study approval in 1998 and updated in 2011. The
following sections are included in this submittal package:

Permit Approval to Construct

Section 1: Project Correspondence
Section 2: Deeds of Property
Section 3: Facility Plan
Section 4: Engineering Plan
Section 5: Construction Quality Assurance Plan
Section 6: Operations Plan
Section 7: Closure and Post-Closure Plan
Section 8: Technical Specifications
Section 9: Erosion Control Permits
Section 10: 404/401 Permits – Stream/Wetlands Impact
Section 11: Permit Approval To Construct Drawings
Mr. Allen Gaither
September 15, 2017
Page 2

Buncombe County, McGill Associates, and Environmental Infrastructure Consulting are
working with BLE, Inc. to produce the Permit Approval to Construct information. Under separate
cover, BLE, Inc. will provide the following to the Solid Waste Section for review and approval:
Section 12: Report of Geotechnical Analysis
Section 13: Design Hydrogeologic Report
Section 14: Water Quality Monitoring Plan
Section 15: Landfill Gas Monitoring Plan

Per our recent discussion, BLE will submit the required electronic copy of their portion of
the submittal directly to the Solid Waste Section’s hydrogeologist, Mr. Perry Sugg.

In anticipation of the construction of CDLF Phase 6, the County developed sediment basin
13 in order to provide sedimentation control for the construction and operation of CDLF Phases
6-8. As part of the development of sediment basin 13, the County worked with the U.S. Army
Corps of Engineers (USACE) and the NCDEQ Division of Water Quality (DWQ) to obtain the
necessary 404/401 permits for the permanent impact to less than 150 linear feet of intermittent
stream. The PCN application and the 404/401 permits are included in Section 10 of the Permit
Approval to Construct documentation. The jurisdictional delineation that was the basis for the
404/401 permits showed that ephemeral streams are located in the two major drainage areas that
make up CDLF Phase 6 and future CDLF 7 & 8. Ephemeral streams are not regulated by the
USACE or the DWQ and these areas will be filled as part of the development of the base of the
landfill. The County has received an erosion control permit from the NCDEQ – Land Quality
Section for the clearing and grubbing of the CDLF Phase 6 area (BUNCO-2017-018), which is
included in Section 9 of the Permit to Construct documentation. The County is in the process of
updating the erosion control plan to address the construction and operation of CDLF Phase 6 and
a copy of that permit will be forwarded to your office upon receipt.

A digital and hard copy of the enclosed information are included in this submittal. We
look forward to working with you in order to obtain a Permit Approval to Construct CDLF Phase
6 at the Buncombe County MSWLF. Please don’t hesitate to contact us should you have any
questions.

Mr. Allen Gaither
September 15, 2017
Page 3

Sincerely,
McGILL ASSOCIATES, P.A.

MARK D. CATHEY
Senior Project Engineer

Enclosures

cc: Jon Creighton, Buncombe County Planning Director, w/enc (digital copy only)
Chip Gingles, Buncombe County Solid Waste Director, w/enc
Joe Wiseman, Environmental Infrastructure Consulting, PLLC, w/enc
Stephen Hunter, Buncombe County, w/enc
Kristy Smith, Buncombe County, w/enc
Perry Sugg, NCDENR-SWS, w/enc (digital copy only)
Jeff Bishop, McGill Associates, w/enc
Andy Alexander, BLE, Inc., w/enc (digital copy only)
Jeff Helvey, BLE, Inc., w/enc (digital copy only)

X:\2017\17.00701\Permit to Construct\ AG 15sept17 submittal ltr.doc

FACILITY PLAN

BUNCOMBE COUNTY
CONSTRUCTION/ DEMOLITION LANDFILL
PHASE 6

BUNCOMBE COUNTY, NORTH CAROLINA

MARK D. CATHEY, P.E.

Engineering  Planning  Finance
Asheville, North Carolina

September 2017

17.00701

ii
Facility Plan
Buncombe County CDLF Phase 6
September 2017
FACILITY PLAN
Buncombe County
Construction and Demolition Landfill
Phase 6

Table of Contents
1.0 – Facility Drawings
1.1 Site Development
1.2 Landfill Operation
1.3 Landfill Units
1.4 Buffer Zones
1.5 Landfill Facilities
2.0 – Facility Report
2.1 Waste Stream
2.1.1 Types of Waste Specified for Disposal
2.1.2 Disposal Rates
2.1.3 Areas Served by the Facility
2.1.4 Segregated Management
2.1.5 Landfill Equipment
2.2 Landfill Capacity
2.2.1 Waste Disposal Capacity
2.2.3 Soil Required for Landfill Construction
2.2.4 Soil Required for Final Cover
2.2.5 Soil Required for Operations
2.2.7 C&D Landfill Operating Life
2.2.8 Net Balance of On-site Soils
2.3 Special Engineering Features
2.3.1 Containment and Environmental Control Systems
2.3.1.1 Closure Cap System
2.3.1.2 Sedimentation and Erosion Control
2.3.1.3 Landfill Subgrade
Tables
Table 2-1 – Disposal Rates
Table 2-2 – Phased Airspace Capacity
Table 2-3 – Operating Life
Table 2-4 – Net Soils Balance
Appendices
Appendix 1: Landfill Deed

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Facility Plan
Buncombe County CDLF Phase 6
September 2017

FACILITY PLAN
Buncombe County
Construction and Demolition Landfill
Phase 6

1.0 Facility Drawings

Buncombe County currently owns and operates a Construction and Demolition Landfill (CDLF)
at the Buncombe County Landfill Facility. The CDLF is located on the western portion of the
property, west of the Municipal Solid Waste Landfill (MSWLF). The existing CDLF includes
Phases 1 through 5 and consists of approximately 18.4 acres. The County anticipates that the
existing CDLF will reach capacity in the summer of 2018. This Permit to Construct submittal
pertains to the lateral expansion of the CDLF into Phase 6, immediately to the west of the
existing CDLF. CDLF Phase 6 consists of 10.0 acres of new landfill footprint, and will overlay
the existing CDLF to provide a total of 11.6 acres of landfill airspace. This Facility Plan was
prepared in accordance with the requirements of Section .0537 of the Solid Waste Management
Rules (15A NCAC 13B). The Permit to Construct drawings for the CDLF have been developed
in accordance with Sections .0535 thru .0547 of the North Carolina Solid Waste Management
Rules.

The Site Study for the facility was approved by the Solid Waste Section on January 21, 1998 and
the Buncombe County Board of Commissioners approved the development of the CDLF facility
at that time. The boundaries of the existing CDLF and proposed CDLF Phase 6 expansion area
are shown on the Facility Plan, Sheet C-102 of the Permit to Construct drawings. The
Buncombe County Landfill/Facility boundary encompasses approximately 604.5 acres. The
Landfill deed is included in Appendix 1.

1.1 Site Development

The Permit to Construct drawings illustrate the existing site conditions and proposed CDLF
Phase 6 expansion. Sheets C-101 and C-102 contain a topographical survey of the entire site
representative of existing site conditions and locating all property boundaries for the proposed
landfill facility certified by an individual licensed to practice land surveying in the State of North
Carolina. Sheet C-101 includes the borings locations that were utilized in the Design Hydro
Report, prepared by BLE, Inc. and the groundwater and bedrock elevations. Sheet C-102, the
Facility Plan, illustrates the phases of development of the proposed CDLF. Also included on C-
102 is the following:
 limits of all solid waste management facilities and facility infrastructure, including landfill
units and buffer requirements set forth in 15A NCAC 13B .0540(1);
 limits of borrow and stockpile areas; and
 any physical features referenced in Rule 15A NCAC 13B .0536 (Location Restrictions).
Sheet C-103 shows the base grade elevations and Sheet C-104 shows the final top of cap grade
elevations for CDLF Phase 6.

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Facility Plan
Buncombe County CDLF Phase 6
September 2017

1.2 Landfill Operation

The Waste Fill sequence drawings (WF-1 through WF-5) show the projected elevations for years
1 through 5 of CDLF Phase 6. It is anticipated that waste fill operations will extend onto the side
slopes of existing CDLF Phase 5 in year 5. The existing gravel road, at the margin of CDLF
Phase 5/6, will be utilized for as long as possible during the filling of CDLF Phase 6.

1.3 Landfill Units

The existing CDLF Phase 1 began receiving Construction and Demolition waste in 1998. The
CDLF expanded through 5 phases, and more recently, Phases 5A and 5B (vertical expansion
only) were added. The total area of the existing CDLF is approximately 18.4 acres. The
proposed CDLF Phase 6 encompasses approximately 10.0 acres of new landfill footprint, and
will extend over the side slope of existing CDLF Phase 5 an additional 1.6 acres. Depending on
future increases in the waste stream, CDLF Phase 6 will provide airspace for approximately 6.7
to 8.5 years, with an estimated 5-year disposal fill volume of 500,000 CY.

1.4 Buffer Zones

The Facility Plan, Sheet C-102 of the permit drawings, shows the proposed layout of the CDLF
Phase 6 and the horizontal siting buffer requirements for the proposed Landfill. Property lines,
nearby residences, and surface waters are included on the Plan. The following minimum buffer
setbacks are maintained for the development of CDLF Phase 6:
 A minimum 200-ft property buffer is shown at the Landfill property lines.
 There are four (4) private residences that are served by private water supply wells located
within 500 feet of the northern Landfill property line; however, these residences are not
located within 500 feet of the proposed CDLF.
 A minimum undisturbed buffer of 50 feet will be maintained between the adjacent
streams and the waste limits of CDLF Phase 6. The adjacent streams are located to the
north, west, and south of the proposed CDLF. In anticipation of the construction of
CDLF Phase 6, the County developed sediment basin 13 in order to provide
sedimentation control for the construction and operation of CDLF Phases 6-8. As part of
the development of sediment basin 13, the County worked with the U.S. Army Corps of
Engineers (USACE) and the North Carolina Department of Environmental Quality
(NCDEQ) Division of Water Quality (DWQ) to obtain the necessary 404/401 permits for
the permanent impact to less than 150 linear feet of intermittent stream. The
jurisdictional delineation that was the basis for the 404/401 permits showed that
ephemeral streams are located in the two major drainage areas that make up CDLF Phase
6 and future CDLF 7 & 8. Ephemeral streams are not regulated by the USACE or the
DWQ and these areas will be filled as part of the development of the base of the landfill.
 The development of CDLF Phase 6 does not infringe upon the existing monitoring zone
that has been established between the CDLF and the existing MSWLF.

Vertical buffer requirements are discussed in Section 5.6 of the Engineering Plan.

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Facility Plan
Buncombe County CDLF Phase 6
September 2017
1.5 Landfill Facilities

Buncombe County currently has and will maintain the solid waste management facilities
necessary for operating and maintaining a CDLF at the Buncombe County Landfill. These
facilities generally consist of a landfill office, scale house, and maintenance facilities. The new
CDLF will utilize the same scales and scale house currently utilized by the existing MSWLF and
CDLF.

2.0 Facility Report

This facility report contains characteristics of the waste stream to be received at the landfill
facility and of the landfill capacity, as required by Rule .0537(e).

2.1 Waste Stream

Per Rule .0537(e)(1), a discussion of the characteristics of the waste received at the facility and
facility specific management plans is as follows.

2.1.1 Types of Waste Specified for Disposal

From the Permit to Operate Asbestos Modification, dated March 5, 2008, the County is
permitted to dispose of construction or demolition debris, inert debris, land-clearing debris, and
asphalt in accordance with the corresponding General Statute. The C&D landfill is also
permitted to dispose of asbestos waste in accordance with Rule .0542(c) and must be managed
per 40 CFR 61.

Waste, listed in Rule .0542(e), may not be accepted for disposal including, but not limited to
yard trash, municipal solid waste, and liquid or industrial wastes.

The County will continue to dispose of waste types as specified in the current Permit to Operate.

2.1.2 Disposal Rates

Table 2-1 presents yearly disposal rates as provided by the County scale house and
corresponding daily rate based on 284 operating days per year (365 days - 52 Sundays - 26
Saturdays (half days) - 3 holidays). The County has realized a dramatic increase in the waste
disposal rate over the past year. For the purposes of projecting landfill airspace requirements for
CDLF Phase 6, it is anticipated that the current increase in waste disposal rates will continue, and
the annual amount of waste to be disposed will return to the pre-recession rate of approximately
60,000 tons of C&D waste per year.

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Facility Plan
Buncombe County CDLF Phase 6
September 2017
Table 2-1 – Disposal Rates
FY Tons Disposed Daily Rate (tons/day)
Jan 1-June 30,
1998 15,089 106
98-99 30,898 109
99-00 43,147 152
00-01 43,370 153
01-02 24,238 85
02-03 8,209 29
03-04 29,889 105
04-05 39,252 138
05-06 58,730 207
06-07 66,388 234
07-08 62,750 222
08-09 32,726 115
09-10 17,174 60
10-11 24,094 85
11-12 22,349 79
12-13 20,939 74
13-14 20,770 73
14-15 22,834 80
15-16 26,560 94
16-17 44,779 158
Note: Information obtained from scale records as noted in Annual Capacity Letter from
EIC Consultants to Buncombe County, dated July 12, 2017.
Fiscal year is from July 1 to June 30.

2.1.3 Areas Served by the Facility

The Buncombe County C&D landfill will serve only waste streams originating from Buncombe
County. Buncombe County, approximately 659 square miles in area, includes the incorporated
municipalities of Asheville, Biltmore Forest, Black Mountain, Montreat, Weaverville, and
Woodfin.

2.1.4 Segregated Management

The Buncombe County Solid Waste Management Facility staff place a high priority on proper
management of incoming waste. The same level of concern and effort is put forth for the
operation of the C&D landfill. Waste screening and segregation procedures are included in the
Operation Plan.

2.1.5 Landfill Equipment

Equipment currently owned by the County and utilized at the C&D landfill includes the
following: a farm tractor, slope mower, steel wheel compactors, bulldozers, excavator, haul
truck/articulated dump truck, pick-up truck, skid loader, rubber tired loader, track loader, motor

5
Facility Plan
Buncombe County CDLF Phase 6
September 2017
grader, tub grinder, roll-off truck, and a fuel truck. Additional equipment is available from other
County facilities or on a rental basis. No additional equipment purchases are anticipated as a
result of expanding the C&D disposal capacity.

2.2 Landfill Capacity

2.2.1 Waste Disposal Capacity

Utilizing AutoCAD Civil 3D software, it is estimated that the volume of airspace available for
the disposal of waste in CDLF Phase 6, measuring from the base grade elevations to the bottom
of the final cap layer, is approximately 740,000 cubic yards (CY). The gross disposal airspace,
which includes the volume of the 3-foot cap layer, is 796,000 CY.

Table 2-2 – Phased Airspace Capacity
Phase
Landfill Area
(Acres)
Waste Disposal
Capacity (cy)
6 10.0 acres new footprint.
11.6 acres including area over existing CDLF Phase 5 740,000
7 & 8 6.0 acres new footprint.
8.7 acres including area over proposed CDLF Phase 6 1,075,500*
Total 16.0 acres new footprint.
17.6 acres including area over existing CDLF Phase 5 1,815,500*
*Estimates of future landfill airspace are from information provided by CDM at the time of the 2009 re-permitting
process. The geotechnical investigations for groundwater elevations for CDLF Phase 7 were not performed at the
time of the CDLF Phase 6 Permitting, and the future airspace estimates for Phases 7 & 8 are approximate only.

2.2.3 Soil Required for Landfill Construction

Soil is required for landfill construction to install access/haul roads, stormwater control
measures, and, when necessary, to establish the required minimum four feet separation between
the bottom elevation of waste and seasonal high groundwater table and/or the bedrock datum
plane contours. The Design Hydro Report, prepared by BLE, Inc., shows the seasonal high
groundwater table and bedrock elevations within the CDLF Phase 6 footprint. Using AutoCAD
Civil 3D software, it is estimated that the County will stockpile approximately 92,000 cy of soil
after constructing the sub grades of CDLF Phase 6. Approximately 33,000 cy of soil will be
needed to construct the top 2-foot layer of the base grades in accordance with Solid Waste Rule
.0540 (2)(b). The net soil stockpile for the construction of CDLF Phase 6 is estimated to be
59,000 cy.

2.2.4 Soil Required for Final Cover

The final cover material volume required to construct the three-foot thick cover system for
CDLF Phase 6 is approximately 56,000 cy.
2.2.5 Soil Required for Operations

It is anticipated that the County will use an alternative cover material for the required weekly
cover. An intermediate, stabilizing material will be used for areas which will not have additional

6
Facility Plan
Buncombe County CDLF Phase 6
September 2017
wastes placed on them for three months or more, but where final termination of disposal
operations has not occurred. When the County resumes disposal in these areas, they will scrape
off the intermediate cover and use it for the final cover once areas reach final grades. The
County reserves the option to use available soils as a cover material for the required weekly
cover.

2.2.7 C&D Landfill Operating Life

The July 2017 Airspace Analysis Report provided to the County by Environmental Infrastructure
Consulting estimates that for the existing CDLF (all phases), the in-place C&D density is 0.63
tons per cubic yard (cy) (the calculated in-place density includes operational soils). This figure
will be utilized in estimating the operating life of CDLF Phase 6. The County saw an
approximate 65% increase in the C&D disposal rate over the past year. Although it is not
expected that there will continue to be such a large yearly increase in the C&D disposal rate, it is
expected that the yearly disposal tonnages will return to pre-recession rates. For the purposes of
projecting the operating life of the CDLF Phase 6, yearly disposal rates of 60,000 and 70,000
tons will be utilized. Table 2-3 presents the estimated operating life for CDLF Phase 6, and
approximate estimates for future CDLF Phases 7 and 8:

Table 2-3 – Operating Life
Phase Final Cover Area (acre) Available Net
Airspace (cy)
Operating Life
(yrs)
6 11.6 (includes 1.6 ac. over
existing CDLF Ph 5) 740,000 6.7 to 8.5
7 & 8* 8.7 (includes 2.7 ac. over
proposed CDLF Ph 6) 1,075,500 9.7 to 12.3
TOTAL
16.0 acres new footprint
(17.6 acres including area over
CDLF Phase 5)
1,815,500* 16.4 to 20.8
*Estimates of future landfill airspace are from information provided by CDM at the time of the 2009 re-permitting
process. The geotechnical investigations for groundwater elevations for CDLF Phase 7 were not performed at the
time of the CDLF Phase 6 Permitting, and the future airspace estimates for Phases 7 & 8 are approximate only.

2.2.8 Net Balance of On-site Soils
The following soil quantities for CDLF Phase 6 have been estimated:

Cut = 115,000 CY
Fill to base grade elevation (-2 feet) = 23,000 CY
Upper 2 feet of classified soil = 33,000 CY
Net Stockpile = 59,000 CY*
*if upper 2 feet of classified soils are found within the footprint of CDLF Ph 6

The CDLF Phase 6 will require an average of 9,500 CY of operational cover each year, based on
a one to ten soil to waste ratio. The closure soil quantities needed for constructing the final cap
for Phase 6 will include approximately 28,100 CY of low permeable soil and 28,100 CY of
vegetation-supportive soil for a total closure volume of 56,200 CY. Soils needed for construction
and operation of the new phase will be obtained from the excavated soils from the Phase 6 area

7
Facility Plan
Buncombe County CDLF Phase 6
September 2017
as well as from the existing soil stockpile area, located immediately to the south of the proposed
cell. The existing borrow area is estimated to contain approximately 300,000 cy of soil. An
additional soil borrow area is located to the southwest of Phase 6 in the event that additional soils
are required. See the Facility Plan, Sheet C-102 of the Permit to Construct drawings, for the
location of the soil stockpile/borrow areas.

Table 2-4 – Net Soils Balance
Phase Net Soil Required (cy)
Construction Operation* Final Cover**
6 -59,000 (stockpiled) 74,000 56,000 (11.6 acres)
7 & 8 unknown 108,000 30,000 (6.0 acres)
Totals -59,000 182,000 86,000
*The County has the option of utilizing an alternative cover material. The soil volume noted in this table is
estimated with the assumption that only soil will be used as an operational cover material
**Estimate herein is for a standalone closing of CDLF Phase 6. If CDLF Phase 7 is developed, the final cover
areas may vary from those shown here.

The existing soil borrow area located immediately to the south of CDLF will provide adequate
soil for operations and final cover for the proposed C&D landfill expansion, and is estimated to
have 300,000 cy of soils plus any soils stockpiled during the construction of CDLF Phases 6 and
7. An additional soil borrow area located to the west of CDLF Phase 7 may be developed if
necessary.

2.3 Special Engineering Features

2.3.1 Containment and Environmental Control Systems

2.3.1.1 Closure Cap System

A closure cap will be designed and constructed when portions of the C&D landfill are at closure
grades, to reduce the infiltration and erosion per Rule .0543 (c)(1). The post-settlement grades of
the top surface slopes will not be less than 5 percent and the side slopes are designed at a
maximum 3:1 (horizontal:vertical ratio). The cap system will be 3-feet thick and be designed
and constructed to:
(A) have a permeability less than or equal to soils underlying the landfill, or the
permeability specified for the final cover in the effective permit, or a permeability
no greater than 1.0 x 10-5 cm/sec, whichever is less;
(B) minimize infiltration through the closed C&DLF unit by the use of a low-
permeability barrier that contains a minimum 18 inches of earthen material; and
(C) minimize erosion of the cap system and protect the low-permeability barrier from
root penetration by use of an erosion layer, which contains a minimum of 18 inches
of earthen material that is capable of sustaining native plant growth.

A gas venting system will be installed below the low-permeability barrier to minimize pressures
exerted on the barrier.

8
Facility Plan
Buncombe County CDLF Phase 6
September 2017

2.3.1.2 Sedimentation and Erosion Control

Buncombe County has received an erosion control permit (BUNCO-2017-018) for clearing and
grubbing 25.4 acres within CDLF Phase 6 and in the location of the adjacent future CDLF Phase
7. The County is in the process of finalizing a submittal to the NCDEQ-Land Quality Section for
an erosion control plan for the grading, operation, and final cap of CDLF Phase 6. The Erosion
Control Permit will be forwarded to the Solid Waste Section prior to beginning construction of
CDLF Phase 6. Internal stormwater berms will be utilized to minimize the amount of
stormwater that comes in contact with waste and to minimize erosion of the constructed base
grades of the cell. Temporary erosion control measures, such as silt fences, fast germinating
vegetation, rock check dams, etc. will be installed as necessary to reduce the amount of
sedimentation and erosion during construction activities and waste filling operations. Existing
Sediment Basin 13 will be utilized as the primary measure to restrain sedimentation associated
with the development and operation of CDLF Phase 6. Additionally, the soil borrow/stockpile
area located immediately to the south of CDLF Phase 6 received an erosion control permit
(BUNCO-2017-001) for 15.2 acres of disturbance.

2.3.1.3 Landfill Subgrade

Per Rule .0540 (2), each proposed phase will be constructed so that the post-settlement bottom
elevation of waste is a minimum of four feet above the seasonal high groundwater table and
bedrock, as established in the Design Hydrogeological Report. Additionally, per Rule .0540
(2)(b), in-situ or modified soils making up the upper two feet of separation must consist of the
following: SC, SM, ML, CL, MH, or CH soils per Unified Soil Classification System or as
specified in the approved construction plan. In order to obtain the necessary subgrade soils on-
site, the County will work with a soils specialist to identify the correct soils to be placed in the
uppermost 2-feet of subgrade of the CDLF.

ENGINEERING PLAN

BUNCOMBE COUNTY
CONSTRUCTION and DEMOLITION LANDFILL
PHASE 6

BUNCOMBE COUNTY, NORTH CAROLINA

MARK D. CATHEY, P.E.

Engineering  Planning  Finance
Asheville, North Carolina

September 2017

17.00701
ENGINEERING PLAN

Buncombe County
Construction/ Demolition Landfill
Phase 6
Buncombe County, North Carolina

Table of Contents

1.0 Introduction

2.0 Engineering Report
2.1 Base Grade System
2.2 Cap System
2.3 Stormwater Control

3.0 Design Summary
3.1 Analytical Methods Used for Design Evaluation
3.1.1 Liner Component
3.1.2 Definition of Critical Conditions and Assumptions Made
3.2 Technical References Used
3.3 Location Restrictions

4.0 Material and Construction Practices
4.1 Subgrade and Base Grades
4.2 Erosion Control
4.3 Waste Stream
4.4 Landfill Capacity
4.5 Soil Resources

5.0 Engineering Drawings
5.1 Existing Conditions
5.2 Grading Plans
5.3 Stormwater Management
5.4 Cap System
5.5 Erosion Control
5.6 Vertical Separation Requirements
Page 1
Engineering Plan
Buncombe County Landfill CDLF Phase 6
September 2017
ENGINEERING PLAN

Buncombe County
Construction and Demolition Landfill
Phase 6

1.0 Introduction

The Engineering Plan incorporates the plans and specifications relative to detailed design
and performance of the Construction and Demolition Landfill (CDLF) Phase 6. This plan
was developed in accordance with Section .0539 of the Solid Waste Management Rules
(15 NCAC 13B). This Engineering Plan discusses the engineering and design of the
CDLF Phase 6 expansion. The Engineering drawings are included in the Drawings
Package for the Permit to Construct.

2.0 Engineering Report

2.1 Base Grade System

The base grade system for the CDLF Phase 6 Expansion has been designed in accordance
with Section .0540 (2) of the Solid Waste Rules, and consists of the following (from
bottom to top):

 A minimum four (4)-foot vertical buffer between the post-settlement
bottom of waste and the projected high water table, and

 A minimum four (4)-foot thick vertical buffer between the post-settlement
bottom of waste and bedrock.

 The upper two feet of separation shall consist of in-situ or modified soils
having a SC, SM, ML, CL, MH, and/or CH designation per the Unified
Soil Classification System.

See Sheet C-103 of the Permit to Construct drawings for the proposed CDLF Phase 6
Base Grade Elevations.

2.2 Cap System

The final cap system has been designed to minimize the amount of stormwater infiltration
into the landfill and to resist erosive forces. The CDLF Phase 6 Expansion has the
following cap system design characteristics (from bottom to top), which meet the
requirements of Rule 0.543(c)(1):

 An 18-inch thick low permeability soil placed directly on top of the waste
or intermediate cover. This soil layer shall have a permeability less than or
Page 2
Engineering Plan
Buncombe County Landfill CDLF Phase 6
September 2017
equal to the original soils underlying the landfill or a permeability no
greater than 1.0 x 10-5 cm/sec, whichever is less.

 An eighteen (18)-inch thick minimum vegetative\erosion layer capable of
sustaining native plant growth.

The post-settlement grades of the top surface slopes will not be less than 5 percent.
Closure side slopes are designed at a maximum 3:1 (Horizontal:Vertical) slopes for Phase
6. See the Report of Geotechnical Analysis prepared by Bunnell-Lammons Engineering,
Inc. (BLE, Inc.) for an evaluation of the 3:1 side slopes.
Passive methane gas vents will be utilized in CDLF Phase 6, and are shown on the Final
Cap Elevations sheet in the Permit to Construct drawings, Sheet C-104.
2.3 Stormwater Control

The County has obtained an Erosion Control Permit (BUNCO-2017-018) for the clearing
and grubbing of CDLF Phase 6. An additional submittal to the North Carolina
Department of Environmental Quality (NCDEQ) Land Quality Section for the erosion
control measures associated with the construction and operation of CDLF Phase 6 is
being prepared, and the final erosion control permit will be forwarded to the Solid Waste
Section prior to the commencement of construction of CDLF Phase 6. The approved
Erosion Control Plan is included as Sheet C-105 in the Permit to Construct drawings.
The County has obtained an Erosion Control Permit (BUNCO-2017-001) for the soil
stockpile/borrow area located immediately to the south of CDLF Phase 6.

Tack-on diversion berms on top of the constructed landfill base will be utilized in the
early stages of the development of CDLF Phase 6, in order to minimize erosion and
divert stormwater runoff to the periphery ditches that lead to Sediment Basin 13. As the
waste fill elevations increase, diversion berms on top of the waste mass will be used to
divert runoff to the periphery ditches. As the landfill cap grades are reached, constructed
drainage terraces and tack-on berms will be utilized to manage stormwater to minimize
erosion to the cap layer. The constructed terraces/tack-on berms will be installed at a
maximum interval of 35 vertical feet. A series of pipes will be used to transport water
from the upper benches to the lower benches and eventually to a periphery ditches that
will transport the stormwater to the existing sediment pond. Design calculations for the
stormwater control devices were calculated based on the 25-year, 24-hour storm event.

3.0 Design Summary

3.1 Analytical Methods Used for Design Evaluation

3.1.1 Liner Components.
(Not Applicable)
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Buncombe County Landfill CDLF Phase 6
September 2017

3.1.2 Definition of Critical Conditions and Assumptions Made

 A minimum 200-foot buffer between proposed waste limits and property
line, and
 A minimum 50-foot buffer between proposed waste limits and streams,
and
 A minimum 500-foot buffer between proposed waste limits and all
residences and private water supply wells, and
 Base grade separation of four (4) feet between projected high water table
and bedrock and the post-settlement bottom of waste, and
 The upper two feet of separation shall consist of in-situ or modified soils
having a SC, SM, ML, CL, MH, and/or CH designation per the Unified
Soil Classification System.
 Maximize use of existing property, and
 Proposed final cap system in accordance with current regulations.

3.2 Technical References Used

 EPA 530-R-93-017 “Solid waste disposal facility criteria, technical
manual”
 NC Regulations (15A NCAC 13B)
 Federal Regulations
 NC General Statutes
 Bagchi, Amalendu. (1994). Design, Construction, and Monitoring of
Landfills, John Wiley and Sons, Inc., New York, NY.

3.3 Location Restrictions

The CDLF Phase 6 expansion complies with all location restrictions given in Section
.0536 & .0540 of the Solid Waste Management Rules (15A NCAC 13B).

A Site Study for the expansion of the CDLF was conducted by Buncombe County and
approved by the Solid Waste Section on July 1, 1998. The Site Study included
information pertaining to airports, water supply, zoning, contamination sources, Cultural
Resources, State Nature and Historic Preserve sites, threatened and endangered species,
floodplains, and seismic design. Additionally, BLE, Inc. addresses fault and seismic
information for CDLF Phase 6 in the Design Hydrogeological Report, submitted under
separate cover.

In 2009, as part of the planning for the future Construction/Demolition Landfill (CDLF)
Phases 6-8, Buncombe County conducted a jurisdictional determination of the potential
streams in the area of the project. It was determined that two ephemeral streams were
located in the footprint of the proposed CDLF, and the two ephemeral streams formed an
intermittent stream downstream of the proposed landfill. The County contracted with
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September 2017
CDM Smith Engineers for the design on the project, which included a PCN submittal to
the US Army Corps of Engineers and the NCDEQ-Division of Water Quality for the
appropriate 404/401 permits for impacts to less than 150 linear feet of the intermittent
stream. The stream impacts were due to the planned construction of a sediment basin
(#13 on the site) that would be utilized for the construction and operation of future CDLF
Phases 6-8. CDM designed the sediment basin to accommodate the maximum drainage
area (26.9 acres) to the basin with the highest anticipated curve number (i.e. final build-
out of CDLF Phases 6-8 with grassed 3:1 slopes). The stream impacts were granted, and
in early 2013, the County contracted with Buchanan and Sons, Inc. to construct sediment
basin 13. Existing Sediment Basin 13 will be the primary measure used to restrain
sedimentation associated with the construction and operation of CDLF Phase 6. The
2009 submittal was approved by the Solid Waste Section on June 15, 2011.

Additional siting information was included in the Facility Plan Update submitted on May
30, 2017 and approved by the Solid Waste Section on June 15, 2017.

The Buncombe County Landfill property has the zoning designation “Open Use”, which
allows the County to continue to perform landfill activities on the ±604.5-acre parcel.

The proposed Phase 6 waste area is located outside of delineated floodplain as shown on
FIRM Map 37021C0160C.

4.0 Materials and Construction Practices

4.1 Subgrade and Base Grades

All materials and methods used for constructing the CDLF Phase 6 expansion will meet
the requirements set forth in Sections .0535-.0547 of the Solid Waste Management Rules
(15A NCAC 13B). The upper two feet of separation (base grades) shall consist of in-situ
or modified soils having a SC, SM, ML, CL, MH, and/or CH designation per the Unified
Soil Classification System. The landfill subgrade will be adequately free of organic
materials and will consist of on-site soils or select fill material previously approved by
the NCDEQ-Solid Waste Section (SWS). The subgrade and base grades will be graded
according to plans approved by the SWS. The landfill operator must notify the SWS’s
hydrogeologist for inspection of the base grades once excavation is complete. This
notification would be indicated in the Permit to Construct.

The Project Engineer, with the assistance of the project hydrogeologist, will visually
inspect the base grades and evaluate the integrity of the surface and document proper
preparation, materials, and elevations according to plans approved by the SWS. The base
grades will be proof-rolled using procedures specified by the technical specifications. The
subgrade and base grades will be tested for moisture and density requirements at the
minimum frequency given in the approved technical specifications and the Site Specific
Construction Quality Assurance Plan.

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4.2 Erosion Control

The erosion control structures are designed and will be maintained to manage the run-off
generated by the 24-hour, 25-year storm event and will conform to the requirements of
the Sedimentation Pollution Control Law (15A NCAC 4). See Section 2.3 regarding the
Erosion Control Permits for CDLF Phase 6.

4.3 Waste Stream

Buncombe County currently classifies their C&D waste stream as commercial,
municipal, or residential. Municipal solid waste and out-of-County C&D waste is
prohibited from the CDLF. The waste stream for the new C&D landfill will maintain the
current classification.

The North Carolina State Demographics office estimated in 2015 that the population of
Buncombe County was 254,836. The service area for the Buncombe County Landfill
includes businesses, municipalities, and residents located within Buncombe County.
Wastes from other counties are not accepted at the facility. The majority of waste
received at the existing C&D Landfill is classified as commercial, with industrial and
residential wastes accounting for a smaller portion of the waste stream. The waste stream
for Fiscal Year 2016-17 was approximately 44,779 tons; however, the County saw a 65%
increase in the CDLF waste over the past year and it is anticipated that the C&D waste
stream will continue to increase and return to pre-recession levels of approximately
60,000 tons year. The average waste stream expected for CDLF Phase 6 is estimated to
be 60,000 tons per year over the life of the landfill.

The County will operate the new C&D landfill using basically the same equipment
available to them at this time, including a farm tractor, slope mower, steel wheel
compactors, bulldozers, excavator, haul truck/articulating dump truck, pick-up truck, skid
loader, rubber tired loader, track loader, motor grader tub grinder, roll-off truck, and a
fuel truck. Additional equipment is available from other County facilities or on a rental
basis.

4.4 Landfill Capacity

CDLF Phase 6 has approximately 740,000 cubic yards (CY) of airspace available for the
disposal of C&D wastes. This includes airspace that is available for placing waste and
daily operational cover. CDLF Phase 6 covers approximately 10.0 acres of new landfill
footprint and extends over the existing CDLF an additional 1.6 acres. It is anticipated
that CDLF Phase 6 will provide capacity for 6.7 to 8.5 years, depending on increases in
the waste stream over the coming years. The County saw a 65% increase in the CDLF
waste stream over the past year. CDLF Phase 6 is estimated to reach capacity in the
autumn of 2025. At closure, the volume of waste fill in the Construction and Demolition
Landfill Phase 6 is estimated to be 740,000 CY. Based on the current fill density at the
existing CDLF of 1,260 pounds per cubic yard (lb/cy), this equates to an estimated total
tonnage of approximately 466,000 tons.
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Airspace Calculation
Total Available Airspace = 740,000 CY
Yearly disposed tonnage = 60,000 tons/year
Fill density = 0.63 tons/cy
Yearly Volume: 60,000 tons/yr = 95,300 cy/yr
0.63 tons/cy
Lifetime Estimate: 740,000 cy = 7.8 years
95,300 cy/yr

If the waste stream increases to 70,000 tons/year, then
Lifetime Estimate: 740,000 cy = 6.7 years
111,100 cy/yr

A conservative lifetime estimate for CDLF Phase 6 is 7 years of landfill airspace, which
is for total buildout of the cell. When planning to develop an adjacent CDLF expansion,
access to the upper elevations of CDLF Phase 6 must be considered. The inefficiencies
associated with operating and providing access to the upper elevations of CDLF Phase 6
would suggest that the County develop the adjoining cell at an earlier time, thus
realistically providing a 5-year lifetime prior to the development of the next phase of
CDLF.

4.5 Soil Resources

The following soil quantities for the new phase of the C&D Landfill have been estimated:

Cut = 115,000 CY
Fill to base grade elevation (-2 feet) = 23,000 CY
Upper 2 feet of classified soil = 33,000 CY
Net Stockpile = 59,000 CY* *if upper 2 feet of classified soils are found within the footprint of CDLF Ph 6

The CDLF Phase 6 will require an average of 9,500 CY of operational cover each year,
based on a one to ten soil to waste ratio. The closure soil quantities needed for
constructing the final cap for Phase 6 will include approximately 28,100 CY of low
permeable soil and 28,100 CY of vegetation-supportive soil for a total closure volume of
56,200 CY. Soils needed for construction and operation of the new phase will be obtained
from the excavated soils from the Phase 6 area as well as from the existing soil stockpile
area, located immediately to the south of the proposed cell. The existing borrow area is
estimated to contain approximately 300,000 CY of soil. An additional soil borrow area is
located to the southwest of Phase 6, in the event that additional soils are required. See
the Facility Plan, Sheet C-102 of the Permit to Construct drawings, for the location of the
soil stockpile/borrow areas.

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5.0 Engineering Drawings

5.1 Existing Conditions

Sheets C-101 and C-102 of the Permit to Construct drawings show existing site
topography, existing roads, existing buildings, location of infrastructure, and proposed
location of the CDLF Phase 6 expansion. Sheet C-101 includes the potentiometric and
bedrock surfaces.

5.2 Grading Plans

The grading plans identify the proposed limits of excavation, boring locations, and base
grade elevations. Sheet C-103 of the Permit drawings shows base grade elevations and
the locations of the borings. Sheet C104 of the Permit drawings shows the proposed final
cap grades for the CDLF Phase 6 expansion.

5.3 Stormwater Management

Stormwater management structures are shown on Sheets C-103 and C-104 for the base
grades and final cap grades, respectively. Temporary stormwater control berms will be
utilized as shown on the filling drawings, Sheets WF-1 through WF-5.

5.4 Cap System

Sheet C-104 of the Permit drawings shows final grades of CDLF Phase 6. The cap
includes an 18-inch thick compacted low permeable soil cover that has a permeability
less than or equal to soils underlying the landfill or a permeability no greater than 1.0 x
10-5 cm/sec, whichever is less. The low permeable soil layer will be overlain by an 18-
inch thick vegetation/erosion layer capable of sustaining native plant growth.

5.5 Erosion Control

The Erosion Control Plans for various stages of development of CDLF Phase 6 are shown
on Sheets C-105 through C-107 of the Permit drawings. The erosion control plan consists
of all necessary diversion ditches, sediment basins, permanent ditches, storm drains, and
silt fence necessary to control sedimentation on the site. The erosion control structures
are designed and will be maintained to manage the run-off generated by the 24-hour, 25-
year storm event and will conform to the requirements of the Sedimentation Pollution
Control Law (15A NCAC 4). The erosion control details are shown on the
Miscellaneous Details, drawings C-501 through C-503.

5.6 Vertical Separation Requirements

Cross section locations of CDLF Phase 6 are shown on sheet C-104 of the Permit to
Construct drawings. The cross sections are shown on C-108 and C-109. These drawings
illustrate the bedrock elevations, ground water and corrected ground water elevations,
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base grade elevations, the depth of waste, the final cap elevations, and the existing
ground elevations. See the Design Hydrogeological Report for more information
pertaining to the projected high water and bedrock elevations.

SITE SPECIFIC
CONSTRUCTION QUALITY ASSURANCE PLAN

BUNCOMBE COUNTY
CONSTRUCTION and DEMOLITION LANDFILL
PHASE 6

BUNCOMBE COUNTY, NORTH CAROLINA

MARK D. CATHEY, P.E.

Engineering  Planning  Finance
Asheville, North Carolina

September 2017

17.00701
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Site Specific CQA Plan
Buncombe County CDLF Phase 6
September 2017
1
SITE SPECIFIC CONSTRUCTION QUALITY ASSURANCE PLAN
Buncombe County
Construction and Demolition Landfill
Phase 6
Buncombe County, North Carolina

1.0 Introduction

1.1 Project Background

The purpose of this Site Specific Construction Quality Assurance Plan (SSCQAP) is to provide
guidance to Buncombe County Landfill Staff, McGill Associates, and the Construction Quality
Assurance (CQA) consultant regarding the required documentation activities during the
construction of the engineered Construction and Demolition Landfill (CDLF) Expansion. The
successful implementation of the SSCQAP will ensure that the construction and materials meet
the design specifications and construction requirements and also that the integrity of the landfill
systems be maintained prior to waste placement.

1.2 Project Scope

The overall goals of the SSCQAP are to ensure that proper construction techniques and
procedures are used to verify that the materials and installation techniques used meet the
requirements of the SSCQAP, project drawings and specifications as approved by the North
Carolina Department of Environmental Quality (NCDEQ), Solid Waste Section (SWS).
Additionally, the program will identify and define problems that may occur during construction
and ensure that these problems are corrected before the construction is complete. At completion
of work, the program will culminate in a certification report, which documents that, the
structural fill has been constructed in substantial compliance with this SSCQAP, project
drawings, and specifications. The primary emphasis of the SSCQAP is careful documentation
during the preparation and placement of the structural fill.

1.2.1 Scope of Services

The Scope of Services provided by the CQA Consultant for the construction of
the Buncombe County Construction and Demolition Landfill – Phase 6 is
as follows:
1. Pre-Construction materials evaluation.
2. Structural Fill placement observation, testing, documentation, and verification of
construction procedures.
3. Landfill base placement observation, testing, documentation, and verification of
construction procedures.
4. Provide CQA Report and CQA Certification that Phase 6 was constructed in
accordance with this SSCQAP.
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2.0 Parties Involved

2.1 Buncombe County

Contact: Chip Gingles, [phone]
Title: Solid Waste Director

2.2 McGill Associates, P.A.

Contact: Mark D. Cathey, PE [phone]
Title: Senior Project Manager

2.3 General Contractor

Contact: TBD (to be determined)
Title:

2.3.1 Surveyor

Contact: TBD
Title:

2.4 Construction Quality Assurance Consultant

Contact: TBD
Title:

2.5 CQA Certifying Engineer –Environmental Infrastructure Consulting, PLLC

Name: Joe Wiseman, PE [phone]
Title: CQA Certifying Engineer

2.6 Soils Laboratory (permeability testing)

Contact: TBD
Title:

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3.0 Preconstruction Meeting

A Preconstruction meeting will be held prior to the beginning of construction. The following
people shall be present: Owner representative, Design Engineer, CQA Certifying Engineer,
Construction Quality Assurance Consultant, and the General Contractor. The SWS will be
invited to attend the meeting as well. The following items will be discussed at a minimum:

 Any questions about the SSCQAP will be addressed and any modifications
that result will be documented. Any modifications to the approved SSCQAP
must be approved by the Solid Waste Section.

 Special permits and state and/or federal regulations.

 Responsibilities, expectations, and roles of each party.

 Lines of authority and proper lines of communication.

 Procedures for documenting and reporting information.

 Distribution and storage of documents and reports, and review office facilities
(copy machine, mailing, etc.)

 Protocol for handling construction deficiencies.

 Protocol for repairs and re-testing.

 Conduct site walk through including the inspection of material handling and
storage locations

 Review detailed time schedule for all operations and procedures for material
processing.

 Review work area security, check-in procedure, and safety protocol, review
site health and safety requirements.

The Preconstruction Meeting will be documented by McGill Associates and a copy of the
meeting minutes will be distributed to all parties who attend.
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4.0 Definitions

4.1 Construction Quality Assurance

A planned and systematic application of all means and actions designed to provide adequate
confidence that items or services meet design and specifications requirements and will perform
satisfactorily in service.

4.2 Construction Quality Control

Those actions which provide a means to measure and regulate the characteristics of an item or
services to design, and specifications requirements.

4.3 Design Engineer

The individual or firm responsible for the implementation of this SSCQAP, construction
drawings, and construction specifications.

4.4 General Contractor

The firm responsible for all construction activity including excavation and placement of the
structural fill and landfill base as specified in this SSCQAP and as shown on the construction
drawings and construction specifications.

4.5 Construction Quality Assurance Consultant

The firm responsible for observing, testing and documenting activities related to construction
quality assurance during the placement of the structural fill. The CQA Certifying Engineer is
responsible for issuing a summary certification and documentation report bearing his/her
Professional Engineering Seal. The CQA Resident Engineer is responsible for the management
of on-site CQA personnel and providing the Project Engineer and Owner with a daily report of
the construction activities.

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5.0 Documentation Procedures

5.1 Standard Reporting Procedures

When the presence of the CQA Technician is required, the technician shall issue a daily report of
construction activities. These reports shall include, as a minimum, the following information:

1. An identifying sheet number for cross-referencing and documentation
control.
2. Date, project name, location and other identification.
3. Weather conditions.
4. Problems encountered and resolutions.
5. Descriptions and locations of ongoing construction.
6. Equipment and personnel in each work area, including subcontractors.
7. Descriptions and specific locations of areas or units of work being tested
and/or observed and documented (identified by coordinates or relative
measurements from fixed structures).
8. Locations where soil tests were performed or soil samples were taken.
9. A summary of test results, failures, and re-tests.

5.2 Applicable Forms

As a minimum, the CQA monitors will utilize the following forms for the project:

1. Daily Field Report
2. Weekly Progress Report
3. Nuclear Density Testing
4. Drive Cylinder Test Report
5. Soil Testing Tracking Log
6. Construction Photo Log
7. Certificate of Completion

5.3 Problem/Deficiency Identification and Corrective Action Report

The CQA Monitor is required to inform the General Contractor or their representatives, in a
timely manner, of any difference between the interpretation of the SSCQAP, the construction
plans and construction specifications by the contractor versus the CQA Monitor’s interpretation.
In addition, any actual or suspect work deficiencies shall be brought to the Project Engineer’s
and Owner’s attention.

A special meeting shall be held when and if a problem or deficiency is present. At a minimum,
the meeting shall be attended by the General Contractor, the Owner, the CQA Resident
Engineer, and the CQA Monitor. If the problem involves a possible design modification, the
Design Engineer shall be notified. The purpose of the meeting is to define and resolve the
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problem or work deficiency as follows:

1. Define and discuss the problem or deficiency
2. Review alternative solutions
3. Implement an action plan to resolve the problem or deficiency

The CQA Resident Engineer or his representative will document all proceedings.

The CQA Resident Engineer and the Design Engineer shall be authorized to stop work at the
construction site.

Any changes and/or modifications to the SSCQAP must be approved by the Owner, Project
Engineer, CQA Certifying Engineer, and the Solid Waste Section.

5.4 Plan Modifications

Design and/or specification changes shall be made only with written approval of the Owner and
the Design Engineer. Substantial design changes shall also require approval from the Solid
Waste Section.

5.5 Scope Change

The CQA Resident Engineer shall notify the Design Engineer whenever additional engineering
services are requested by Owner that exceeds the original scope of services. An agreement for
additional engineering services must be developed prior to any additional engineering services
being provided.

5.6 Photographic Documentation

Photographs taken to document observations, problems, and/or deficiencies, or work in progress
will include identification of the date, location, direction of view, and time period. Photographs
will be filed in chronological order in a permanent protective file by the CQA team. One set of
prints shall be turned over to both the Owner and Project Engineer at the conclusion of the
project.

The permanent file will also contain a comprehensive index of each photo, which the CQA
Monitor is responsible for preparing and maintaining. This index will include the following
information:

1. Date of photograph
2. Provide a location and scale where photographed, including information regarding
the orientation of the photograph itself for proper viewing
3. Subject description
4. Photo file number

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The following is a list of minimum photographs to be taken during cell construction:

1. Excavation of soil to reach base grades.
2. Subgrade/subbase proof rolling
3. On-site lab soil testing
4. General Progress photographs
5. Design modifications
6. Construction deficiencies
7. Completed construction

5.7 Final Construction Documentation Report

Once construction of the landfill base has been completed, the CQA Resident Engineer shall
prepare a final CQA report covering the installation and testing of the base materials. The
CQA plan shall be prepared in accordance with Section .0541 of the Solid Waste Rules, and
shall include the results of all the construction quality assurance and construction quality control
testing, including documentation of any failed test results, description of procedures used to
correct the improperly installed material, and results of all retesting performed. The report must
contain as-built drawings noting any deviation from the approved engineering plans, a
comprehensive narrative including, but not limit to, periodic reports from the CQA Consultant, a
series of color photographs of major project features, and documentation of major project
features. The CQA report must be submitted to the Owner and Design Engineer prior to
submittal to NCDEQ. The report must also bear the seal of the CQA Certifying Engineer and a
certification that construction was completed in accordance with:

a) the CQA plan,
b) the conditions of the permit to construct,
c) the requirements of Rule .0541, and
d) acceptable engineering practices.

5.8 Format of CQA Report

As a minimum, the certification report will contain the following items for discussion in the
narrative portion of the report. The proposed table of contents is:

5.8.1 Table of Contents

Section

1.0 Summary of Information

1.1 Narrative
1.2 Reference Information

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2.0 Soil Preconstruction Data (structural fill)

2.1 Proctors
2.2 Soil Density/Moisture
2.3 Soil Classification

3.0 Subgrade (Structural Fill) Field Data

3.1 Moisture Content
3.2 Field Density Testing

4.0 Landfill Base Field Data

4.1 Moisture Content
4.2 Field Density
4.3 Soil Classification

5.0 Soil Laboratory Data

5.1 Construction Proctors
5.2 Soil Classification
5.3 Permeability

5.0 Project Meeting Minutes

6.0 Construction Photographs

7.0 Pertinent Information

5.8.2 Draft List of Drawings

As a minimum, the certification will include in an appendix the following proposed list of
drawings:

 Map showing approximate test locations for structural fill.
 Map giving elevation of subgrade at a minimum frequency of every one-hundred (100) feet
(i.e. 100’ x 100’ grid) in any one direction as well as the toe and top of each berm and/or
change in grade, including the location of any deviation from the approved engineering
plans.

5.9 Site Surveying Requirements

The Contractor shall provide all survey activities and coordinate with the CQA Resident
Engineer, Design Engineer, and surveyor. Survey services will be required for initial site layout,
landfill base grade verification and invert of all stormdrain piping. One permanent benchmark of
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September 2017
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known elevation measured from a U.S. Geological Survey benchmark must be established and
maintained for each 50 acres of developed landfill, or part thereof. The benchmark shall be the
reference point for establishing vertical elevation control. North Carolina State Plane
coordinates must be utilized for horizontal control points, one of which is the benchmark. The
benchmark and horizontal control must be installed by a Professional Land Surveyor. Survey
data points of the grades of the landfill base shall be taken at a minimum frequency of every one-
hundred (100) feet in any one direction as well as the toe and top of each berm and/or change in
grade. The certification surveys will be as directed by the CQA Certifying Engineer and shall
include the following items:

 Topographic survey of subgrade elevations
 Topographic survey of landfill base grades (to verify thickness)
 Inverts of storm drain piping
 Inverts of sediment pond structures

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6.0 Landfill Construction Earthwork

6.1 Subgrade Preparation

Subgrade preparation shall be performed by the General Contractor and in accordance with the
construction drawings and construction specifications.

Structural fill shall be the soil placed to achieve the design subgrade contours. The subgrade will
be tested for field density and field moisture content at the minimum frequencies given in
Appendix A of this document. Testing will also consist of visual observation and documentation
of proofrolling with loaded rubber-tired earthmoving equipment. If a nuclear gauge is used as
the primary means of construction testing, the instrument shall be calibrated properly and test
data shall be verified using alternate test methods such as drive cylinders. An alternate test
method shall be used at least once for every hundred tests performed and at least once each day
that density tests are performed with the nuclear gauge. The alternate test method should be
performed in the same area as an instrument reading in order to allow accurate comparison of the
data resulting from the two tests.

6.2 Landfill Base Placement

The upper two feet of the landfill base must consist of the following soil classifications: SC, SM,
ML, CL, MH, or CH soils per Unified Soil Classification system or as specified in the approved
construction plans.

Contractor shall place landfill base in accordance to the construction specifications and the soil
material tested in accordance with Appendix A.

6.3 In-Situ Soil

Portions of the proposed landfill base grades are in areas of excavation only. The top two feet of
the in-situ soil must also comply with the minimum criteria outlined on the construction
drawings and the construction specifications. Alternate testing methods for in-situ soils are
outlined in Appendix A.

Appendix A

Appendix A

1.0 Structural Fill Construction Specifications

The Earthwork Contractor shall be responsible for excavating soil and placing structural fill to
prepare the subgrade of the landfill base, and is responsible for constructing the subgrade in
accordance with the technical specifications.

The following activities must be performed:

1. The CQA Certifying Engineer shall document that a professional land surveyor
has verified that all grades and elevations are consistent with the SWS approved
engineering plans.

2. The CQA Certifying engineer shall document that he/she has visually inspected
the subgrade surface to evaluate its suitability and that the subgrade meets the
criteria specified in the project specifications.

3. The owner or operator of the C&DLF unit must notify the SWS’s hydrogeologist
at least 24 hours before subgrade inspection.

4. The subgrade shall be proof-rolled using a motor grader, smooth-drum roller, or
other procedures and equipment specified by the project engineer.

The CQA Certifying Engineer shall document that the subgrade has been tested for conformance
to the construction specifications at the following minimum frequencies:

STRUCTURAL FILL TO SUBGRADE ELEVTIONS
CRITERIA AND TESTING FREQUENCIES
TEST ASTM METHOD QUANTITY ACCEPTABLE
VALUES
Field Density

Field Moisture
D6938, D1556, D2937

D2216, D6938,
D4643
1/40,000 SF/ Lift

1/40,000 SF/ Lift
95% maximum dry
density

+/- 4% optimum

2.0 Landfill Base Construction Specifications

The upper two feet of the landfill base must consist of the following soil classifications: SC, SM,
ML, CL, MH, or CH soils per Unified Soil Classification system or as specified in the approved
construction plans and meet the following criteria.

TOP 2 FEET TO LANDFILL BASE CRITERIA AND TESTING FREQUENCIES
TEST ASTM METHOD QUANTITY ACCEPTABLE
VALUES
Field Density

Field Moisture
D6938, D1556, D2937

D2216, D6938,
D4643
1/40,000 SF/ Lift

1/40,000 SF/ Lift
95% maximum dry
density

+/- 4% optimum

Atterberg Limits

Grain Size

Permeability

ASTM D4318

D422, D1140

D5084

1/3,000 YD3

1/3,000 YD3

1/10,000 CY or
change in material

See Soil Classification
Requirements

Max. 3” Diameter
(lower 18”),
Max 1” dia. (upper 6”)

Documentation only

3.0 In-Situ Soils Construction Specifications

In areas of soil excavation, at the direction of the CQA Certifying Engineer, the Contractor may
use the in-situ soil material as the landfill base. The top two feet of any in-situ soils used as the
landfill base must also comply with the minimum criteria as outlined on the contract documents.

The upper two feet of the landfill base must consist of the following soil classifications: SC, SM,
ML, CL, MH, or CH soils per Unified Soil Classification system or as specified in the approved
construction plans and meet the following criteria.

The Earthwork Contractor shall be responsible for excavating over burden soil and is responsible
for constructing the landfill base in accordance with the contract documents.

The CQA Certifying Engineer shall document that the top 24-inches of in-situ soil has been
tested for conformance to the construction specifications by completing 24-inch hand auger test
holes and collecting soil samples for testing at a maximum frequency of a 200’x 200’ grid
pattern. CQA Engineer will visual inspect top surface for presence of rock material exceeding
landfill base criteria. Soil samples will be tested in accordance with the table below.

IN-SITU SOIL CRITERIA AND TESTING FREQUENCIES
TEST ASTM METHOD QUANTITY ACCEPTABLE
VALUES
Field Density

D6938, D1556, D2937

200x200’ Grid

95% maximum dry
density

Atterberg Limits

Grain Size

Permeability
ASTM D4318

D422, D1140

D5084
200’x200’ Grid

200’x200’ Grid

1/50,000 SF or
change in material
See Soil Classification
Requirements

See Soil Classification
Requirements

Documentation only

Section 6:
Operation Plan

OPERATION PLAN

BUNCOMBE COUNTY
CONSTRUCTION AND DEMOLITION LANDFILL
PHASE 6

BUNCOMBE COUNTY, NORTH CAROLINA

MARK D. CATHEY, P.E.

Engineering  Planning  Finance
Asheville, North Carolina

September 2017

17.00701

OPERATION PLAN

Buncombe County
Construction and Demolition Landfill
Phase 6

Buncombe County, North Carolina

Table of Contents

1.0 Waste Acceptance & Disposal Requirements

2.0 Cover Material Requirements

3.0 Disease Vector Control

4.0 Air Quality

5.0 Access and Safety Requirements

6.0 Erosion and Sedimentation Control Requirements

7.0 Drainage Control and Water Protection Requirements

8.0 Recordkeeping Requirements

9.0 Spreading and Compacting Requirements

1 Operation Plan
Buncombe County CDLF Phase 6
September 2017
OPERATION PLAN
Buncombe County
Construction and Demolition Landfill
Phase 6

The purpose of the Operation Plan is to provide the Buncombe County CDLF staff with a
guide for the safe and efficient operation of the landfill, including the current operation
through Phase 6. This Operation Plan has been prepared in accordance with the North
Carolina Solid Waste Rule 15A NCAC 13B .0542. Buncombe County shall maintain and
operate the Construction/ Demolition Landfill (CDLF), Phase 6 in accordance with the
Permit to Operate issued by the North Carolina Department of Environmental Quality,
Solid Waste Section (SWS) and the following requirements.

1.0 Waste Acceptance and Disposal Requirements

1.1 The CDLF Phase 6 will accept construction/demolition (C/D) waste, land-
clearing and inert debris, and other wastes specifically approved by the SWS.
The CDLF will only accept waste generated in Buncombe County, and will not
knowingly dispose of any type of C/D waste generated within the boundaries of a
unit of local government that by ordinance prohibits generators or collectors of
C/D waste from disposing of such waste.

Construction/demolition debris, as defined in the North Carolina General Statute
(NCGS) 130A-290, is waste or debris resulting solely from construction,
remodeling, repair, or demolition operations on pavement, buildings, or other
structures.

Land-clearing debris, as defined in the NCGS 130A-290, is waste that is
generated solely through land clearing activities such as stumps, trees, limbs,
brush, grass and other naturally occurring vegetative matter.

Inert Debris, as defined in NCGS 130A-290, is waste which consists solely of
material that is virtually inert and that is likely to retain it physical and chemical
structure under expected conditions, such as concrete, brick, concrete block,
uncontaminated soil, rock, and gravel.

The CDLF will accept asbestos waste if managed in accordance with 40 CFR 61.
The waste shall be disposed of at the bottom of the working face or in an area not
contiguous with other disposal areas. The area shall be covered with soil
immediately in a manner to avoid any airborne conditions and the disposal area
shall be marked and/or the location documented in the permanent operating
record of the landfill so that the waste is not disturbed by future landfilling
activities.

2 Operation Plan
Buncombe County CDLF Phase 6
September 2017
1.2 The following wastes are prohibited from disposal at the CDLF:

 Containers such as tubes, drums, barrels, tanks, cans and bottles, unless
they are empty and perforated to ensure no liquid, hazardous or municipal
solid waste is contained therein.
 Garbage as defined by NCGS 130A-290
 Hazardous Waste
 Industrial Waste
 Liquid Waste
 Medical Waste
 All municipal solid waste (MSW).
 Polychlorinated biphenyls (PCB) waste as defined in 40 CFR 761.
 Radioactive waste as defined by Statute 104E-5(14).
 All liquid wastes are banned from the CDLF facility.
NOTES: Liquid Waste means any waste material that is determined to
contain “free liquids” as defined by Method 9095 (Paint Filter Liquids
Test), as described in “Test Methods for Evaluating Solid Wastes,
Physical/Chemical methods” (EPA Pub. No. SW-846).

Paint Filter Liquids Test:
The test is performed by placing a 100-milliliter sample of the waste in
question, in a conical, 400-micron paint filter. The waste is considered to
be a liquid waste if any liquid from the waste passes through the filter
within five minutes.
 Wastes prohibited by Statute GS 130A-309.10 of the North Carolina Solid
Waste Management Rules. These wastes include:
o used oil
o yard trash
o white goods
o antifreeze (ethylene glycol)
o whole scrap tires
o lead-acid batteries
 Wastewater treatment sludge or any other waste containing organics.
 C&D waste that has been shredded, pulverized or processed to such an
extent that the composition of the original waste cannot be determined,
unless the waste is from a facility that received a permit from an
authorized regulatory authority which specifies such activities are
inspected by the authority and that the primary purpose is recycling and
reuse of the C&D material.
 The following wastes are banned from the CDLF if separate from C&D
waste: light bulbs or lamps, lighting ballast or fixtures, thermostats and
light switches, batteries, lead pipes, lead roof flashing, transformers,
capacitors and copper chrome arsenate (CCA) and creosote treated woods.

3 Operation Plan
Buncombe County CDLF Phase 6
September 2017
 Disposal of yard trash will not be allowed in the CDLF Facility. Yard
trash is defined in the NCGS 130A-290 as solid waste consisting solely of
vegetative matter resulting from landscaping maintenance.

1.3 Landfill personnel will conduct random inspections of typical incoming loads.
Inspections will occur at a designated site, adjacent to the working face of the
landfill unit. The load will be carefully spread by a front-end loader with
personnel trained to identify hazardous and liquid waste or any other
unacceptable waste. The frequency of the random inspections will be based on
the type and quantity of wastes received, at approximately 1% of the waste
stream.

A record will be kept of each inspection that is performed. These records will be
included and maintained in the operating record of the landfill.

Buncombe County will provide annual training to appropriate landfill personnel
in regard to recognizing hazardous and liquid waste.

1.4 Buncombe County has developed a contingency plan to properly manage
identified hazardous or liquid waste. The plan involves the identification of the
waste by inspection. If the inspector determines a load of waste to be of a
hazardous nature, the landfill will not accept the waste and require that hauler
remove the waste from the facility. If the inspector determines a load of waste to
include wastes that should not be disposed of in the CDLF but can be disposed of
in the MSW Landfill, then the hauler will be required to load the waste back into
his vehicle and transport the load to the MSW facility.

2.0 Cover Material Requirements

2.1 Buncombe County shall cover the disposed waste with six (6) inches of earthen
material (or alternative cover material approved by SWS) at least once per week,
or at more frequent intervals if necessary, to control disease vectors, fires, odors,
blowing litter, and scavenging. During wet weather conditions, the County may
use ground clean wood waste and ground unpainted block, brick and concrete to
aid access to the working face.

2.2 Buncombe County shall cover all waste areas that will be inactive for more than
twelve (12) months and have not reached final elevations with a minimum of one
foot of intermediate cover.

3.0 Spreading and Compacting Requirements

3.1 Waste will be placed in the CDLF in lifts of approximately five (5) to ten (10)
feet thick. Following placement of the initial lift, the solid waste will be
compacted as densely as possible using compactors and dozers. Waste placement
will be in lifts not to exceed 10 feet. In order to increase compaction, waste

4 Operation Plan
Buncombe County CDLF Phase 6
September 2017
should be placed from the downgradient to upgradient direction when possible.
The working face shall be maintained in as small an area as possible to increase
compaction and to reduce the amount of soil cover required.

4.0 Disease Vector Control

4.1 Buncombe County will control the spread of disease vectors by maintaining cover
requirements and picking up windblown trash as necessary to prevent vectors.

5.0 Air Criteria and Fire Control

5.1 Buncombe County operates the CDLF in compliance with the Title V Air Quality
Permit that was issued for the Buncombe County Landfill. A copy of the Permit
is located in the operating record of the Facility.

5.2 No open burning of solid waste shall be allowed at the landfill, except for the
infrequent burning of land clearing debris that is generated by on-site clearing or
debris from emergency clean-up operations. Any such infrequent burning will be
approved by the local fire marshall and all local and state guidelines will be
followed. The County will obtain all applicable permits prior to burning.

5.3 If a hot load of waste is delivered to the landfill, the driver shall not be allowed to
dump the load. The driver shall be directed to a gravel or paved area and
instructed to dump the load there. The fire should be extinguished if possible and
the local fire department called immediately.

If a load of waste is unknowingly a “hot” load and is discharged onto the working
face, it will immediately be watered and extinguished by landfill personnel if
possible and the local fire department will be called immediately. Equipment and
a stockpile of soil shall also be maintained in close proximity to the working face
for controlling accidental fires.

5.4 The local Fire Department will be contacted and informed of the potential fire
hazards at the landfill. Arrangements will be made with the fire department to
provide access to the landfill site. They will also be provided with operational
information of the facility in case of emergency.

5.5 If a fire or explosion occurs at the landfill, Buncombe County shall provide verbal
notification within 24 hours and written notice within 15 days to the SWS.

6.0 Access and Safety Requirements

6.1 The site is currently enclosed by a fence, with access controlled by security gates
or from extreme natural topography. A security check station and weigh scales is
located at the landfill entrance to evaluate waste stream and proper disposal. A
properly trained operator will be on duty at the site at all times while it is open for

5 Operation Plan
Buncombe County CDLF Phase 6
September 2017
public use to insure compliance with operational requirements. Access roads to
the site will be of all weather construction and maintained in good condition.

6.2 Dust generated due to landfill activities will be controlled through the application
of water by truck or other approved dust control products, if necessary. Removal
of mud and dirt from the roads will also be a part of the dust control measures.
Additionally, final cover or intermediate cover will be vegetated as soon as
practical in order to minimize the blowing of dust on-site.

6.3 Signs providing information on disposal procedures, the hours which the site is
open for public use, the permit number, stating that no hazardous or un-permitted
waste can be received without written permission, stating that no liquid waste can
be received for disposal, and other pertinent information will be posted at the site
entrance. These signs are located at the landfill entrance, which currently
provides access to the MSW and CDLF. Traffic signs and markers shall be
provided as necessary to promote an orderly traffic pattern and direct incoming
vehicles to the proper dumping area (MSW or C/D). Adequate signage will be
located along the access roads to direct vehicles to and from the discharge area
and maintain efficient operating conditions. A sign shall be placed in clear view
of each incoming waste transporter, which shall read as follows:

6.4 Scavenging of solid waste is prohibited. A recycling program can be
implemented which would allow removal of solid waste if a program is approved
by the SWS.

7.0 Erosion and Sedimentation Control Requirements

7.1 Existing and proposed erosion/sedimentation control structures include sediment
basins, storm drains, temporary slope drains, check dams, and diversion ditches.
Sedimentation basins will be checked after periods of significant runoff.
Sediment will be removed from the basin to its original dimension when sediment
accumulates to one half of the design depth. The sedimentation basins,
embankments, ditches, inlets and outlets will also be inspected for erosion
damage. All necessary repairs will be made immediately. Any trash or debris
within the riser pipes will be removed.

7.2 Stormwater will be collected by constructing benches on the finished cap at an
interval of approximately 35 vertical feet. A series of pipes will be used to
transport water from the upper benches to the lower benches and eventually to a
periphery ditch that will transport the stormwater to existing sediment basins.
Each pipe will be sized for the final-developed condition, since the landfill will
produce peak runoff at the final-developed condition.

6 Operation Plan
Buncombe County CDLF Phase 6
September 2017
7.3 The erosion control structures are designed and will be maintained to manage the
run-off generated by the 24-hour, 25-year storm event and will conform to the
requirements of the Sedimentation Pollution Control Law (15A NCAC 4).

7.4 Storm drain outlets and diversion ditches will be inspected for damage after each
runoff event. Riprap will be placed in ditches and at pipe outlets to prevent
erosion and washouts. Provisions for a vegetative ground cover sufficient to
control erosion must be accomplished within thirty (30) working days or 120
calendar days upon completion of any phase of CDLF development. Temporary
grassing will also be utilized as necessary to stabilize temporary slopes that are
susceptible to erosion.

7.5 Embankment slopes shall be periodically inspected for erosion. The embankment
slopes shall be mowed at a frequency sufficient to maintain a good stand of
vegetation. The slopes shall be mowed once in any one (1) year period. The
embankment slopes shall be refertilized in the second year unless vegetation
growth is fully adequate. Any damaged areas will be reseeded, fertilized, and
mulched immediately. Seeding, fertilizing and mulching shall be in accordance
with the North Carolina Erosion and Sedimentation Control Guidelines.

8.0 Drainage Control and Water Protection Requirements

8.1 Surface water from outside the operational area will be diverted from the waste
area by the use of perimeter ditches. The perimeter ditches direct surface water to
the sedimentation basins.

8.2 Surface water shall not be impounded over or in waste.

8.3 Waste shall not be placed in ponded water.

8.4 There shall be no discharge of pollutants from the landfill into waters of the U.S.,
including wetlands, that violates any requirements of the Clean Water Act,
including, but not limited to, the National Pollutant Discharge Elimination
Systems (NPDES) requirements, pursuant to Section 402.

8.5 There shall be no discharge of a nonpoint source of pollution into waters of the
U.S., including wetlands, that violates any requirement of area-wide or State-wide
water quality management plan that has been approved under Section 208 or 219
of the Clean Water Act, as amended.

8.0 Survey for Compliance

8.1 Within 60-days of the NCDEQ-Solid Waste Section (SWS) written request,
Buncombe County shall cause to be performed a survey, by a North Carolina
registered surveyor, of the active and closed portions of the CDLF to determine if
operations are being conducted in accordance with the approved design and

7 Operation Plan
Buncombe County CDLF Phase 6
September 2017
operational plans. The results of the survey must be reported to the SWS within
90-days of the request.

9.0 Recordkeeping Requirements

9.1 Landfill personnel shall record and retain the following information in an
operating record at the landfill, or at an alternate location that has been approved
by the SWS:

 Inspection of existing facilities,
 Inspection records and waste determination records,
 Training received by landfill personnel,
 Waste amounts received by weight, which includes source or generation,
 Any demonstration, certification, finding, monitoring, testing, or other
analytical data required by the Permit to Operate,
 Erosion and Sediment Control applications, drawings, and permits,
 Cost estimates and Financial Assurance documentation,
 Copy of the approved plans,
 Copy of current Permit to Construct and Permit to Operate,
 Copy of the approved Monitoring Plan.

CLOSURE/POST-CLOSURE PLAN

BUNCOMBE COUNTY
CONSTRUCTION and DEMOLITION LANDFILL
PHASE 6

BUNCOMBE COUNTY, NORTH CAROLINA

MARK D. CATHEY, P.E.

Engineering  Planning  Finance
Asheville, North Carolina

September 2017

17.00701
CLOSURE/POST-CLOSURE PLAN
Buncombe County
Construction and Demolition Landfill
Phase 6
Buncombe County, North Carolina
Table of Contents
1.0 Cap Description and Construction
1.1 Cap Construction
1.2 Methane Gas Removal System
1.3 Final Cover
1.3a Materials Required
1.3b Construction Requirements
1.3c Construction Quality Assurance Requirements

2.0 On-Site Waste Inventory

3.0 Closure Schedule
3.1 Notification of Division of Solid Waste
3.2 Begin Closure
3.3 Completion of Closure
3.4 Recording of Closure
3.5 Engineer’s Certification

4.0 Financial Assurance
4.1 North Carolina Solid Waste Rule, Section .0546
4.2 Local Government Financial Test

5.0 Post Closure Plan
5.1 Inspections
5.2 Maintenance
5.3 Planned Use and Personal Contact
5.4 Water Quality/ Environmental Monitoring Plan
5.5 Engineer’s Certification

6.0 Closure and Post Closure Cost Analysis and Summary
6.1 Closure Cost Estimate
6.2 Post-Closure Cost Estimate
6.3 Potential Assessment and Corrective Action Cost Estimate
6.4 Financial Assurance Summary

Page 1
Closure and Post Closure Plan
Buncombe County CDLF Landfill Phase 6
September 2017

CLOSURE AND POST-CLOSURE PLAN
Buncombe County
Construction and Demolition Landfill–Phase 6
Buncombe County, North Carolina

1.0 Cap Description and Construction

The final cap system for Construction and Demolition Landfill (CDLF) Phase 6 located at the Buncombe
County Landfill will be constructed in a progressive manner. As substantial areas of the landfill are
brought to final grade, the cap system will be constructed in order to minimize infiltration of stormwater,
control erosion, and establish and maintain a vegetated cap. CDLF Phase 6 encompasses a total area of
approximately 11.6 acres and will provide airspace for the disposal of Construction and Demolition waste
until 2025.

1.1 Cap Construction

The post-settlement slopes of the final cap will be at a minimum of five percent and a maximum of 33.3
percent. The cap cross-section will consist of an 18-inch low permeable layer and a vegetative supportive
layer with a minimum thickness of 18 inches, constructed as follows (from bottom to top):

 An 18-inch thick low permeability soil placed directly on top of the waste or intermediate
cover. This soil layer shall have a permeability less than or equal to the original soils
underlying the landfill or a permeability no greater than 1.0 x 10-5 cm/sec, whichever is
less.

 An eighteen (18)-inch thick minimum vegetative\erosion layer capable of sustaining native
plant growth.

The Cap Detail is included on sheet C-501 of the Permit to Construct drawings. Both the low
permeability layer and the vegetative support layer will each require approximately 28,100 cubic yards
(cy) of soil. The total soils for the cap construction is 56,200 cy.

1.2 Methane Gas Removal System

A methane venting system will be constructed in the final cap of CDLF Phase 6. The locations of the
methane vents are shown on the Final Cap Elevations drawing, Sheet C-104, and a detail describing the
construction of the vents is shown on Sheet C-501 of the Permit to Construct drawings.

1.3 Final Cover

The final cover layer will be a total of 18-inches thick. The soil cover will provide support for native
vegetation and protect the low permeability barrier.

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Closure and Post Closure Plan
Buncombe County CDLF Landfill Phase 6
September 2017
1.3a - Materials Required

A grass cover is proposed for the Landfill to provide the required cover while minimizing cap
maintenance. The surface will be prepared by fertilizing and placing seed in accordance with the
North Carolina Erosion and Sediment Control Standards. The final cover will be constructed of
native soils. Although the material will not be required to have a specific classification or
permeability, it should be a cohesive soil capable of supporting native vegetation.

i. Fertilizer:

The final cover material shall be tested prior to spreading to determine the amount
of fertilizer that should be added to achieve optimum growth potential of the
required vegetative cover.

The quality of fertilizer and all operations in connection with the furnishing of this
material shall comply with the requirements of the North Carolina Fertilizer Law
and regulations adopted by the North Carolina Board of Agriculture.

Fertilizer shall be 10-10-10 grade. Upon written approval of the Engineer a
different grade of fertilizer may be used, provided the rate of application is adjusted
to provide the same amounts of plant food.

During handling and storing, the fertilizer shall be cared for in such a manner that it
will be protected against hardening, caking, or loss of plant food values. Any
hardened or caked fertilizer shall be pulverized to its original conditions before
being used.

ii. Lime

The final cover material shall be tested prior to spreading to determine the amount
of lime that should be added to achieve optimum growth potential of the required
vegetative cover.

The quality of lime and all operations in connection with the furnishing of this
material shall comply with the requirements of the North Carolina Lime Law and
regulations adopted by the North Carolina Board of Agriculture.

During the handling and storing, the lime shall be cared for in such a manner that it
will be protected against hardening and caking. Any hardened or caked lime shall
be pulverized to its original condition before being used.

Lime shall be agriculture grade ground dolomitic limestone. It shall contain not
less than 85% of the calcium and magnesium carbonates and shall be of such
fineness that at least 90% will pass a No. 10 sieve and at least 50% will pass a No.
100 sieve.

iii. Seed:
Page 3
Closure and Post Closure Plan
Buncombe County CDLF Landfill Phase 6
September 2017

The quality of seed and all operations in connection with the furnishing of this
material shall comply with the requirements of the North Carolina Seed Law and
regulations adopted by the North Carolina Board of Agriculture.

Seed shall have been approved by the North Carolina Department of Agriculture or
any agency approved by the Engineer before being sown, and no seed will be
accepted with a date of test more than nine (9) months prior to the date of sowing.
Such testing however, will not relieve the Contractor from responsibility for
furnishing and sowing seed that meets these specifications at the time of sowing.
When a low percentage of germination causes the quality of the seed to fall below
the minimum pure live seed specified, the Contractor may elect, subject to the
approval of the Engineer, to increase the rate of seeding sufficiently to obtain the
minimum pure live seed contents specified, provided that such an increase in
seeding does not cause the quantity of noxious weed seed per square yard to exceed
the quantity that would be allowable at the regular rate of seed.

During handling and storing, the seed shall be cared for in such a manner that it
will be protected from damage by heat, moisture, rodents, or other causes.

Seed shall be entirely free from bulblets or seed of Johnson Grass, Nutgrass,
Sandbur, Wild Onion, Wild Garlic, and Bermuda Grass. The specifications for
restricted noxious weed seed refers to the number per pound, singly or collectively,
of Blessed Thistle, Wild Radish, Canada Thistle, Corncockle, Field Bindwee,
Quackgrass, Dodders, Dock, Horsenettle, Bracted Plantain, Buckhorn or Wild
Mustard; but in no case shall the number of Blessed Thistle or Wild Radish exceed
27 seeds of each per pound. No tolerance on weed seed will be allowed.

iv. Mulch:

Straw mulch shall be threshed straw of oats, rye or wheat free from matured seed of
obnoxious weeds or other species which would grow and be detrimental to the
specified grass.

1.3b - Construction Requirements

Final cover shall be placed according to the following requirements:

i. The final 6 inches of final cover shall be spread by utilizing small equipment with a
relatively low ground pressure. This will reduce the potential of the underlying
layers of the final cap being damaged. Prior to placing final soil layer, shape the
underlying soil layer to graded lines and cross sections to provide for 6 inches of
vegetative supportive soil. Clear the underlying soil layer of materials larger than
2” in diameter.

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Closure and Post Closure Plan
Buncombe County CDLF Landfill Phase 6
September 2017
ii. After alignment of the underlying soil, loosen and till to a depth of 6 inches by
disking, harrowing, rototilling, or other approved methods to assure that the final
soil layer properly adheres to the underlying soil layer.

iii. After the condition of the underlying soil layer has been approved by the on-site
CQA personnel, place and spread final layer to achieve required depth after
compaction; rake and remove materials larger than 2 inches. Compact with
approved roller equipment, grade to finished tolerances, and prepare the seedbed in
accordance with the approved CDLF Phase 6, Technical Specifications.

Seed, fertilizer and lime shall be applied according to the following:

Seed shall be applied by means of a hydro-seeder or other approved methods. The rates of
application of seed, fertilizer and limestone shall be as stated below, unless pre-
construction testing is contrary to these rates and can be documented.

All rates are in pounds per acre:

Fertilizer - 1000 lbs. per acre
Lime - 4,000 lbs. per acre
KY-31 Fescue - 100 lbs. per acre
Straw mulch – 60 to 80 bales

For summer seeding the following shall be added:
 German Millet - 10 lbs. per acre
 Sudangrass – 15 lbs. per acre

For winter seeding the following shall be added:
 Rye grain – 15 lbs. per acre

For steep slopes the following shall be added:
 Sericea Lespedeza – 40 lbs. per acre

Equipment to be used for the application, covering or compaction of limestone, fertilizer,
and seed shall have been approved by the Engineer before being used on the project.
Approval may be revoked at any time if equipment is not maintained in satisfactory
working condition, or if the equipment operation damages the seed. Limestone, fertilizer,
and seed shall be applied within 24 hours after completion of seedbed preparation unless
otherwise permitted by the Engineer, but no limestone or fertilizer shall be distributed and
no seed shall be sown when the Engineer determines that weather and soil conditions are
unfavorable for such operations.

Limestone may be applied as a part of the seedbed preparation, provided it is immediately
worked into the soil. If not so applied, limestone and fertilizer shall be distributed
uniformly over the prepared seedbed at the specific rate of application and then harrowed,
raked, or otherwise thoroughly worked or mixed into the seedbed.

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Buncombe County CDLF Landfill Phase 6
September 2017
Seed shall be distributed uniformly over the seedbed at the required rate of application, and
immediately harrowed, dragged, raked, or otherwise worked so as to cover the seed with a
layer of soil. The depth of covering shall be as directed by the Engineer. If two kinds of
seed are to be used which require different depths of covering, they shall be sown
separately.

When a hydraulic seeder is used for application of seed and fertilizer, the seed shall not
remain in water containing fertilizer for more than 30 minutes prior to application unless
otherwise permitted by the Engineer.

Immediately after seed has been properly covered, the seedbed shall be compacted in the
manner and degree approved by the Engineer.

Mulch shall be applied according to the following:

It shall be spread uniformly at the rate given above and in a continuous blanket over the
areas specified.

Before mulch is applied on cut or fill slopes which are 3:1 or flatter, and ditch slopes, the
Contractor shall remove and dispose of all exposed stones in excess of 2 inches in diameter
and all roots or other debris which will prevent proper contact of the mulch with the soil.

Mulch shall be applied within 24 hours after the completion of the seeding unless
otherwise permitted by the Engineer. Care shall be exercised to prevent displacement of
soil or seed or other damage to the seeded area during the mulching operations.

Mulch shall be uniformly spread by hand or by approved mechanical spreaders or blowers
that will provide an acceptable application. An acceptable application will be that which
will allow some sunlight to penetrate and air to circulate but also partially shade the
ground, reduce erosion, and conserve soil moisture.

Mulch shall be held in place by applying a sufficient amount of approved binding material
to assure that the mulch is properly held in place. The rate and method of application of
binding material shall meet the approval of the Engineer. Where the binding material is
not applied directly with the mulch, it shall be applied immediately following the mulch
operation.

The Contractor shall take sufficient precautions to prevent mulch from entering drainage
structures through displacement by wind, water, or other causes and shall promptly remove
any blockage to drainage facilities that may occur.

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Closure and Post Closure Plan
Buncombe County CDLF Landfill Phase 6
September 2017
1.3c - Construction Quality Assurance Requirements

Buncombe County will ensure that the materials described above are utilized for the final
cover and that their placement is done in accordance with the above detailed Construction
Requirements. The project engineer will ensure that the materials and methods described
above are utilized to construct the final cap system, and that all requirements of the Site
Specific Construction Quality Assurance Plan are met. A Site Specific Construction
Quality Assurance Plan for the construction of the final cap of CDLF Phase 6 has been
prepared in accordance with section 15A NCAC 13B .0541 of the Solid Waste Rules and
is included in the Permit to Construct submittal.

2.0 On-Site Inventory

At closure, the volume of waste fill in the Construction and Demolition Landfill Phase 6 is estimated to
be 740,000 cubic yards (cy). Based on the current fill density at the existing CDLF of 1,260 pounds per
cubic yard (lb/cy), this equates to an estimated total tonnage of approximately 466,000 tons.

3.0 Closure Schedule

3.1 Notification of Division of Solid Waste

Prior to beginning closure of the Construction and Demolition Landfill Phase 6 at the Buncombe County
Landfill, the County will notify the Division of Waste Management that a notice of the intent to close the
unit has been placed in the operating record. Probable Date of Closure: Autumn 2025

3.2 Begin Closure

Buncombe County will begin closure activities for that portion of Phase 6 meeting one or more of the
following requirements unless an extension has been granted by the Division. Extensions beyond the
deadline for beginning closure may be granted by the Division if the owner or operator demonstrates that
the portion of the CDLF unit has the capacity to receive additional wastes and the owner or operator has
taken and will continue to take all steps necessary to prevent threats to human health and the environment
from the unclosed CDLF unit.

1. No later than 30 days after the date on which the CDLF unit receives the known final receipt of
wastes, or
2. No later than 30 days after the date that a 10 acre or greater area of waste is within 15 feet of final
design grades, or
3. No later than one year after the most recent receipt of wastes, if the CDLF unit has remaining
capacity.

Probable Date: Spring 2026

Page 7
Closure and Post Closure Plan
Buncombe County CDLF Landfill Phase 6
September 2017
3.3 Completion of Closure

Buncombe County will complete closure activities of the CDLF Phase 6 at the Buncombe County
Landfill, in accordance with the closure plan within 180 days following the beginning of closure.
Extensions of the closure period may be granted by the Division if the owner or operator demonstrates
that closure will, of necessity, take longer than 180 days and they have taken and will continue to take all
steps to prevent threats to human health and the environment from the unclosed CDLF unit.
Probable Date: Autumn 2026.

3.4 Recording of Closure

Following closure of the Buncombe County CDLF Phase 6, Buncombe County will record a notation on
the deed to the Buncombe County landfill facility property, or some other instrument that is normally
examined during a title search, and notify the Division that the notation has been recorded and a copy has
been placed in the operating record. The notation on the deed must in perpetuity notify any potential
purchaser of the property that:

1. The land has been previously used as a landfill facility; and
2. Its use is restricted under the Division of Waste Management approved Closure Plan

Probable Date: Winter 2026-27.

3.5 Engineer’s Certification

Following closure, Buncombe County shall notify the Division of Waste Management that a certification,
signed by the project engineer verifying that closure has been completed in accordance with the closure
plan, has been placed in the operating record.

4.0 Financial Assurance

The Financial Assurance provision of Section .0546 of the Solid Waste Management Rules (15A NCAC
13B) requires that owners and operators of Construction and Demolition Landfills (CDLF) must provide
for certain minimum measures to insure that the funds to meet the requirements of the regulations
governing closure, post-closure and corrective action activities are available in the event that these actions
are not taken by the owner or operator.

4.1 North Carolina Solid Waste Rule, Section .0546

In general, Section .0546 provides that the owner and/or operator must:

1. Provide accurate third-party cost estimates for the closure, post-closure care, and potential
corrective actions.
2. Select a mechanism for demonstrating financial assurance.
3. Maintain the selected mechanism in compliance with the provisions of Section .0546
throughout the period for which the owner/operator is subject to the provisions of the
North Carolina Solid Waste Management Rules (15A NCAC 13B).

Page 8
Closure and Post Closure Plan
Buncombe County CDLF Landfill Phase 6
September 2017
The Rule provides for the following alternative mechanisms for demonstrating financial assurance:

1. Trust Fund.
2. Surety bond Guaranteeing Payment or Performance.
3. Letter of Credit.
4. Insurance.
5. Capital Reserve Fund.
6. Local Government Financial Test.
7. Multiple Mechanisms.

Buncombe County has reviewed the requirements associated with each of these mechanisms and assessed
the costs related to their use as the County‘s financial assurance mechanism. Although the relative cost of
these mechanisms does not appear to vary significantly, there are various factors associated with their
availability and practicality, which make certain of the mechanisms less attractive than others.

4.2 Local Government Financial Test

Therefore, Buncombe County has elected to adopt the LOCAL GOVERNMENT FINANCIAL
TEST. The Local Government Financial Test is attractive because the County’s excellent financial
condition makes passing the test quite feasible. Buncombe County has not had any difficulties passing
the LOCAL GOVERNMENT FINANCIAL TEST in recent years and there are not any circumstances
that would indicate that this would change.

5.0 Post Closure Plan

5.1 Inspections

Inspections of the final cover will be performed according to the table below and the condition
of the facility will be recorded with notes, maps, and photographs. Buncombe County personnel
will be on-site to perform inspections on a frequent basis.

The inspection will take notice of:

1. Eroded banks
2. Patches of dead vegetation
3. Animal burrows
4. Subsidence (settlement)
5. Cracks along the cover.

The inspector will note the condition of:

1. Stormwater and erosion control facilities
2. Ground water monitoring wells

Areas showing subsidence, cracking, signs of erosion, or damage are to be repaired.

Schedule of Inspections
Page 9
Closure and Post Closure Plan
Buncombe County CDLF Landfill Phase 6
September 2017
Years
(Following closure)
Minimum Yearly
Inspections
0-2 4
2-30 2

5.2 Maintenance

The vegetative cover will be trimmed at least two times a year. In the early stages of development,
fertilization will be applied annually as needed.

Seeding of any patches of dead vegetation, proper filling and compaction of any portion of the cap
showing subsidence, cracking, or other signs of erosion.

Proper repair of any potential erosion problems found to be present during inspection of catch basins,
piping, pipe inlets and outlets, and other stormwater control facilities.

5.3 Planned Use and Personal Contact

There are no current planned uses for the landfill site after closure. The property will remain County
property, maintained by the County with public access prohibited. Any alternate use of the landfill after
closure has been completed will be approved by the Solid Waste Section prior to implementation. The
person to contact regarding the facility during the Post-Closure period is:

Buncombe County Planning Department
Mr. Jon Creighton, Assistant County Manager
46 Valley Street
Asheville, North Carolina 28801
Telephone [phone]

5.4 Water Quality/Environmental Monitoring Plan

Buncombe County operates a water quality/environmental monitoring plan at the Buncombe County
Landfill. As part of the Permit to Construct CDLF Phase 6, Bunnell-Lammons Engineering (BLE)
included in their Design Hydrogeologic Report additional monitoring wells to be installed in conjunction
with the construction of the new Phase 6 cell. The updated Environmental Monitoring Plan will be
submitted to the Solid Waste Section under separate cover. The wells were designed and constructed in
accordance with Section 15A NCAC 13B .0544(b) of the Solid Waste Rules. The new monitoring wells
and the existing monitoring wells associated with the CDLF will continue to be maintained and monitored
during the post-closure care period as required by the Solid Waste Rules and as specified in the Water
Quality Monitoring Plan. The post-closure care period shall be 30 years, except as provided under 15A
NCAC 13B .0543(e)(2).

Surface water monitoring points in the vicinity of the CDLF Phase 6 are monitored on a semi-annual
basis, in accordance with Section 15A NCAC 13B .0544(c) of the Solid Waste Rules. Buncombe County
will continue to monitor the surface water locations during the 30-year post-closure care period as
required by the Solid Waste Rules, except as provided under 15A NCAC 13B .0543(e)(2). See the update
Page 10
Closure and Post Closure Plan
Buncombe County CDLF Landfill Phase 6
September 2017
to the Water Quality Monitoring Plan prepared by BLE, Inc. for the location of the surface water
monitoring points.

Buncombe County currently conducts a landfill gas monitoring system at the Buncombe County Landfill.
Gas monitoring will be continued during the 30-year post-closure care period in accordance with Section
15A NCAC 13B .0544(d) of the Solid Waste Rules, except as provided under 15A NCAC 13B
.0543(e)(2). See the update to the Landfill Gas Monitoring Plan prepared by BLE, Inc. for the location of
the LFG monitoring points.

5.5 Engineer’s Certification
Following completion of the post-closure care period, Buncombe County shall notify the Solid Waste
Section that a certification, signed by the project engineer verifying that post-closure care has been
completed in accordance with this post-closure plan, has been placed in the record.

6.0 Closure and Post Closure Cost Analysis and Summary

6.1 Closure Cost Estimate

Phase 6 (11.6 ACRES)

Item 1 Earthwork Unit Cost Total__
a. 28,100 C.Y. 18” Vegetative cover $6 /C.Y. $168,600
b. 28,100 C.Y. 18” Low Permeable $8 /C.Y. $224,800

Item 2 Sedimentation and Erosion Control
a. 12 AC. Grassing $3,000 /A.C. $36,000
b. 500 Tons Rip Rap $60 /Tons $30,000
c. 1,000 L.F. Stormwater piping $50 /L.F. $50,000

Item 3 15 Gas vents $1,500/Ea $22,500

Item 4 Engineering
a. Design $60,000
b. Construction Quality Assurance $110,000
c. Legal/Administrative $10,000

Item 5 Contingency (approximately 10%) $71,000

Total Closure Cost Estimate $789,900

Page 11
Closure and Post Closure Plan
Buncombe County CDLF Landfill Phase 6
September 2017
6.2 Post-Closure Cost Estimate (Phase 6 Only)

Phase 6 (11.6 ACRES)
__Unit Cost Total
Item 1 Quarterly LFG monitoring costs $500/event $6,000
(3 locations x 4 events/yr)

Item 2 Semi-annual groundwater monitoring
(3 wells x 2 events/yr) $750/event $4,500

Item 3 Surface water monitoring
(2 locations x 2 events/yr) $500/event $2,000

Item 4 Routine Annual Maintenance

a. 12 AC. Grass Mowing $100/AC. $1,200
(2 cuts/year)
b. 1 Each Repair of Cap $16,000.00/Each $16,000
(1 acre @ 1foot depth)
c. 3 AC. Reseeding $1,500/ AC. $4,500
d. 20 tons Riprap $60/ton $1,200

Item 5
a. Miscellaneous $2,000
b. Administration $2,000
c. Inspection $2,000

Item 6 Contingency (approx. 10%) $4,000

Total Annual Post-Closure Care $48,300

Total Post-Closure Care Period (30 years) $1,449,000

6.3 Potential Assessment and Corrective Action Cost Estimate

Potential Assessment and Corrective Action Cost Estimate, $2,000,000
(per the Solid Waste Rules)

6.4 Financial Assurance Summary

Total Closure Cost Estimate $789,900
Total Post-Closure Care Period (30 years) $1,449,000
Total Potential Assessment and Corrective Measure Cost Estimate $2,000,000

Total Financial Assurance $4,238,900
I:\Drawings\2017\17.00701 - Bunc Co CDLF Ph 6 - Environmental\Design\Solid Waste\Drawings\Permit to Construct\17.00701 CDLF Ph 6-PTC-Cover and DETAILS.dwg 9/15/2017 11:34 AM ADAM WALDROUPBUNCOMBE COUNTY, NORTH CAROLINA
SCHEDULE OF DRAWINGS
SEPTEMBER 2017
BUNCOMBE COUNTY LANDFILL
BUNCOMBE COUNTY
/E )NKN
CDLF PHASE 6
G-001. . . COVER SHEET
G-002. . . GENERAL NOTES AND LEGEND
C-101. . . EXISTING CONDITIONS
C-102. . . FACILITY PLAN
C-103. . . CDLF PHASE 6 BASEGRADE ELEVATIONS
C-104. . . CDLF PHASE 6 FINAL CAP ELEVATIONS
C-105. . . CLEARING AND GRUBBING EROSION CONTROL PLAN
C-106. . . BASEGRADE EROSION CONTROL PLAN
C-107. . . FINAL CAP EROSION CONTROL PLAN
C-108. . . CDLF PHASE 6 CROSS-SECTION A-A
C-109. . . CDLF PHASE 6 CROSS-SECTION B-B
WF-1 . . . WASTE FILL YEAR 1
WF-2 . . . WASTE FILL YEAR 2
WF-3 . . . WASTE FILL YEAR 3
WF-4 . . . WASTE FILL YEAR 4
WF-5 . . . WASTE FILL YEAR 5
C-501. . . MISCELLANEOUS DETAILS
C-502. . . MISCELLANEOUS DETAILS
C-503. . . MISCELLANEOUS DETAILS
(14
4')7.#614;
4'8+'9
PERMIT APPROVAL TO CONSTRUCT
VICINITY MAP
N.T.S.
BUNCOMBE
COUNTY
LANDFILL
NC

2
5
1
352-(&7&225',1$7(6ƒ1ƒ:
PROPOSED
CDLF PH 6
SITE
ACCESS
EXISTING
CDLF PH 5
EXISTING
MSWLF
BUNCOMBE COUNTY LANDFILLBUNCOMBE COUNTY, NORTH CAROLINABUNCOMBE COUNTYCDLF PHASE 6DP17.00701SEPTEMBER 2017DPSHEETDESIGN REVIEW: _____DESIGNED BY:JOB NO.:DATE:CADD BY:CONST. REVIEW: _____/E)NKNNO.DATE BY REVISION DESCRIPTIONI:\Drawings\2017\17.00701 - Bunc Co CDLF Ph 6 - Environmental\Design\Solid Waste\Drawings\Permit to Construct\17.00701 CDLF Ph 6-PTC-Cover and DETAILS.dwg 9/15/2017 11:34 AM ADAM WALDROUPFILE NAME: 17.00701 CDLF Ph6-PTC-Cover andDETAILS.dwgPERMIT APPROVAL TO CONSTRUCTCTV
EXISTING CONDITIONS LEGEND
EROSION CONTROL NOTES
NORTH CAROLINA LAND QUALITY SECTION
REVISED FOR THIS PROJECT
THE FOLLOWING STABILIZATION SCHEDULE SHALL APPLY:
GENERAL CONSTRUCTION NOTES
GENERAL NOTES
GENERAL NOTESANDLEGEND
SOIL
ROA
D
SOIL ROADSOILROADGRAVEL
GRAVEL
BLE-3
MW
EXIST.
SOIL
ROAD
GRAVEL
ROAD
A
B
OUTLET
GRATE 1886.5'
INV OUT 1877.5'
B-801
B-802
B-803
B-804
B-805
B-806
B-807
B-808
DEEP
B-808
SHALOW
1920
1930
1990198019701960
19501940
20402030202
0
2010
2000
1940
1
9
5
0
1
9
6
0
1970
1980
1990
2000
2010
2020203
0
204
0
1910
1900
1890
188
0 1870188018901900191019201930194019501960197020502040203019801990
20702060200020202
0
1
0
20
0
0
1990
1980
1970
1960
19501940
2000PROPOSED WASTE LIMITS
NEW LANDFILL AREA: 10.0 ACRES
CDLF PH 6 (INCLUDING AREA OVER EXISTING CDLF): 11.6 ACRES
APPROXIMATE EXISTING WASTE LIMITS
FIELD VERIFICATION REQUIRED
EXISTING CDLF
EXISTING SOIL
BORROW AREA
EXIST.
SOIL
ROAD
EXIST.
SOIL
ROAD
EXIST.
SOIL
ROAD
EXIST.
SOIL
ROAD
EXIST.
GRAVEL
ROAD20102020
EXIST.
SOIL
ROAD
CDLF PHASE 6
FUTURE CDLF PHASE 7
BORING OR PIEZOMETER, TYP.
SEE DESIGN HYDRO REPORT FOR DETAILS
BEDROCK ELEVATION, TYP.
SEE DESIGN HYDRO REPORT FOR DETAILS
GROUNDWATER ELEVATION, TYP.
SEE DESIGN HYDRO REPORT FOR DETAILS
INCLUDING A DISCUSSION OF THE CORRECTION FACTOR
THAT WAS APPLIED TO THE ELEVATIONS SHOWN HERE
EXISTING SURVEY NOTE:
EXISTING SURVEY INFORMATION FROM A COMPILATION OF SURVEYS PROVIDED BY
ED HOLMES & ASSOCIATES LAND SURVEYORS, INCLUDING THE MOST RECENT SURVEY
OF THE EXISTING CDLF, PERFORMED ON APRIL 24, 2017.
BEDROCK AND GROUNDWATER NOTE:
SEE THE DESIGN HYDRO REPORT, PREPARED BY BLE, INC., FOR INFORMATION
PERTAINING TO THE BEDROCK AND GROUNDWATER ELEVATIONS SHOWN HERE.BUNCOMBE COUNTY LANDFILLBUNCOMBE COUNTY, NORTH CAROLINABUNCOMBE COUNTYCDLF PHASE 6DP17.00701SEPTEMBER 2017DPCDLF PHASE 6EXISTING CONDITIONSSHEETDESIGN REVIEW: _____DESIGNED BY:JOB NO.:DATE:CADD BY:CONST. REVIEW: _____/E)NKNNO.DATE BY REVISION DESCRIPTION FILE NAME: 17.00701 CDLF Ph6-PTC-Existing Conditions9-1-17.dwgPLAN
+0%*(''6)4#2*+%5%#.'


PERMIT APPROVAL TO CONSTRUCTLEGEND
BEDROCK ELEVATIONS
HIGH WATER ELEVATIONS
BRANCH OR EPHEMERAL STREAM
(DOES NOT INCLUDE CORRECTION FACTOR)
CDLF PHASE 6 LIMITS
2
0
0
'50'50'
50'50'500'500'500'500'EEEEESOIL
ROAD GRAVELROADGRAVELROADGRAVELROADNC HWY 251PAN
T
H
E
R
2
0
0
'
50'500'500' ROA
D
S.R. 1745
L.F.
ENTRANCE
PAN
T
H
E
R
B
R
A
N
C
H
PAN
T
H
E
R
B
R
A
N
C
H
C
R
E
E
K
BRANCH
50'50'
50'500'500'GRAVEL
GRAVEL
50'50'
200
'
EXIST.
SOIL
ROAD
GRAVEL
ROAD
A
B
PROPOSED 24-FOOT GRAVEL ACCESS ROAD
EXISTING ACCESS ROAD TO BE IMPROVED
TO ACCOMMODATE FUTURE LANDFILL ACCESS AND
TO PROVIDE ACCESS TO S.B. 13 AND LOWER LEVEL
OF PROPOSED CDLF PHASE 6
PROPOSED WASTE LIMITS - NEW LANDFILL AREA: 10.0 ACRES
CDLF PH 6 (INCLUDING AREA OVER EXISTING CDLF): 11.6 ACRES
EXISTING CDLF
EXIST.
SOIL
ROAD
EXIST.
SOIL
ROAD
EXIST.
SOIL
ROAD
EXIST.
SOIL
ROAD
EXISTING MSWLF
PANTHER BRAN
C
H
EXISTING SOIL BORROW AREA
MULCHING
&
GRINDING
WHITE
GOODS/ HHW
COLLECTION
AREA
EXIST.
SOIL
ROAD
CDLF PHASE 6
LFG
PROCESSING
LEACHATE
POND
CONVENIENCE
CENTER
LANDFILL
OFFICE
WASTE HAUL ROUTE
WAST
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WAST
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H
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SCALES &
SCALEHOUSE
PREVIOUSLY SHOWN FUTURE CDLF WASTE LIMITS
Tire
Trailer
SOIL STOCKPILE AREA FOR THE SOILS EXCAVATED FOR THE
CONSTRUCTION OF CDLF PHASE 6 AND ADJACENT ACCESS ROADS.
FUTURE CDLF PHASE 7
EXIST.
GRAVEL
ROAD
EXISTING
SOIL
BORROW
AREA
MATERIAL
STORAGE
EXISTING LIMITS OF DISTURBANCE
BUNCO-2017-018
EXISTING LIMITS OF DISTURBANCE
BUNCO-2017-001
EXISTING SURVEY NOTE:
EXISTING SURVEY INFORMATION FROM A COMPILATION OF SURVEYS PROVIDED BY ED HOLMES & ASSOCIATES LAND SURVEYORS,
INCLUDING THE MOST RECENT SURVEY OF THE EXISTING CDLF, PERFORMED ON APRIL 24, 2017.
NC HWY 2
5
1
FUTURE SOIL BORROW AREA BUNCOMBE COUNTY LANDFILLBUNCOMBE COUNTY, NORTH CAROLINABUNCOMBE COUNTYCDLF PHASE 6DP17.00701SEPTEMBER 2017DPFACILITY PLANSHEETDESIGN REVIEW: _____DESIGNED BY:JOB NO.:DATE:CADD BY:CONST. REVIEW: _____/E)NKNNO.DATE BY REVISION DESCRIPTION FILE NAME: 17.00701 CDLF Ph6-PTC-Facility Plan9-1-17.dwgPERMIT APPROVAL TO CONSTRUCT+0%*(''6)4#2*+%5%#.'


PLAN
SOIL
ROA
D
SOIL ROADSOILROADGRAVEL
GRAVEL
BLE-3
MW
EXIST.
SOIL
ROAD
GRAVEL
ROAD
S.B. 13 OUTLET
GRATE 1886.5'
INV OUT 1877.5'
B-804
B-808
SHALOW
PROPOSED 24-FOOT GRAVEL ACCESS ROAD
POTENTIAL FUTURE GRAVEL ACCESS ROAD
EXISTING ACCESS ROAD TO BE IMPROVED
TO ACCOMMODATE FUTURE LANDFILL ACCESS AND
TO PROVIDE ACCESS TO S.B. 13 AND LOWER LEVEL
OF PROPOSED CDLF PHASE 6
PROPOSED 20-FOOT GRAVEL ACCESS ROAD
GRAVEL TO BE REMOVED PRIOR TO WASTE FILL IN ROAD AREA
PROPOSED TACK-ON DIVERSION BERM AT BASE GRADES OF LANDFILL, TYP.
INSTALL AT MAX. 4% SLOPE, EXTEND TO DITCH AT PERIPHERY OF CELL
DRAINAGE BERM TO BE REMOVED PRIOR TO WASTE FILL
MAINTAIN ACCESS TO EXISTING GRAVEL ROAD FOR AS LONG AS
POSSIBLE DURING THE FILLING OPERATION OF CDLF PHASE 6
STORM DRAINAGE PIPE, TYP.
PROPOSED EARTHEN EMBANKMENT - TOP IS MIN. 20-FOOT WIDTH
SLOPE EMBANKMENT EAST AND WEST AT 3%
TO DIRECT RUNOFF TO PERIPHERAL DITCHES
PROPOSED WASTE LIMITS
NEW LANDFILL AREA: 10.0 ACRES
CDLF PH 6 (INCLUDING AREA OVER EXISTING CDLF): 11.6 ACRES
PROPOSED CDLF PHASE 6 BASE GRADES ELEVATION, TYP. - MAX. SLOPE 2.5:1
INSTALL PERFORATED 12" HDPE UNDERDRAIN BENEATH BASE GRADES IN AREA OF EPHEMERAL STREAM (UNDERDRAIN NOT SHOWN)
VERIFY THAT SOILS IN TOP 2-FEET OF LANDFILL BASE MEET THE REQUIREMENTS OF THE SOLID WASTE RULES
PROPOSED DRAINAGE PIPE TO BE GROUTED PRIOR TO
WASTE FILL OPERATIONS NEAR PIPE
APPROXIMATE EXISTING WASTE LIMITS
FIELD VERIFICATION REQUIRED
EXISTING CDLF
EXISTING SOIL BORROW AREA
EXIST.
SOIL
ROAD
EXIST.
SOIL
ROAD
EXIST.
SOIL
ROAD
EXIST.
SOIL
ROAD
EXIST.
GRAVEL
ROAD
INV 2078.0
INSTALL UNDERDRAIN ALONG EXISTING
EPHEMERAL STREAM CHANNEL
WASTE LIMITS 1, SEE DETAIL
NOTE:
THE BLUE CONTOURS WITHIN THE CDLF PHASE 6 LIMITS REPRESENT THE BASE GRADE ELEVATIONS OF THE CELL.
THE SOILS IN THE UPPER 2 FEET OF THE SUBGRADE MUST MEET THE CLASSIFICATIONS SPECIFIED IN THE SOLID WASTE RULES.
EC PLAN
BUNCO-2017-001
B-802
B-803
B-805
WASTE LIMITS MARKER
TYP. OF 15
B-806
B-807
B-808
DEEP
B-801 BUNCOMBE COUNTY LANDFILLBUNCOMBE COUNTY, NORTH CAROLINABUNCOMBE COUNTYCDLF PHASE 6DP17.00701SEPTEMBER 2017DPCDLF PHASE 6BASE GRADE ELEVATIONSSHEETDESIGN REVIEW: _____DESIGNED BY:JOB NO.:DATE:CADD BY:CONST. REVIEW: _____/E)NKNNO.DATE BY REVISION DESCRIPTION FILE NAME: 17.00701 CDLF Ph6-PTC-Base Grades9-1-17.dwgPLAN
+0%*(''6)4#2*+%5%#.'


PERMIT APPROVAL TO CONSTRUCT
SOIL
ROA
D
SOIL ROADSOILROADGRAVEL
GRAVEL
MW
GRAVEL
ROAD
A
B
OUTLET
GRATE 1886.5'
INV OUT 1877.5'
PROPOSED 24-FOOT GRAVEL ACCESS ROAD
GRAVEL ACCESS ROAD
EXISTING ACCESS ROAD TO BE IMPROVED
TO ACCOMMODATE FUTURE LANDFILL ACCESS AND
TO PROVIDE ACCESS TO S.B. 13 AND LOWER LEVEL
OF PROPOSED CDLF PHASE 6
PROPOSED CDLF PHASE 6 TOP OF CAP ELEVATION, TYP.
CONSTRUCT 10-FOOT DRAINAGE TERRACE INTO CAP AT NO GREATER THAN 70 VERTICAL FEET
INSTALL TACK-ON DRAINAGE BERMS AT 35-FOOT INTERVALS (NOT SHOWN HERE)
CAP STORM DRAINAGE PIPE, TYP.
PROPOSED EARTHEN EMBANKMENT - TOP IS MIN. 20-FOOT WIDTH
SLOPE EMBANKMENT EAST AND WEST AT 3%
TO REMOVE RUNOFF TO PERIPHERAL DITCHES
PROPOSED ARMORED PERIPHERAL DRAINAGE DITCH
PROPOSED WASTE LIMITS
NEW LANDFILL AREA: 10.0 ACRES
CDLF PH 6 (INCLUDING AREA OVER EXISTING CDLF): 11.6 ACRES
PROPOSED DRAINAGE PIPE TO BE GROUTED PRIOR TO WASTE FILL
OPERATIONS NEAR PIPE
APPROXIMATE EXISTING WASTE LIMITS
FIELD VERIFICATION REQUIRED
EXISTING CDLF
EXISTING SOIL BORROW AREA
EXIST.
SOIL
ROAD
EXIST.
SOIL
ROAD
EXIST.
SOIL
ROAD
EXIST.
SOIL
ROAD
EXIST.
GRAVEL
ROAD
METHANE GAS VENT LOCATION, TYP.
WASTE LIMITS MARKERS, TYPICAL OF 15
EC PLAN
BUNCO-2017-001
PROPOSED RIPRAP PERIPHERAL DRAINAGE DITCH
NOTE:
THE RED CONTOURS WITHIN THE CDLF PHASE 6 LIMITS REPRESENT THE FINAL TOP OF CAP ELEVATIONS OF THE CELL.
CAP DRAINAGE TERRACE, TYP.
WASTE LIMITS 2
WASTE LIMITS 1
WASTE LIMITS 3
BUNCOMBE COUNTY LANDFILLBUNCOMBE COUNTY, NORTH CAROLINABUNCOMBE COUNTYCDLF PHASE 6DP17.00701SEPTEMBER 2017DPCDLF PHASE 6FINAL CAP ELEVATIONSSHEETDESIGN REVIEW: _____DESIGNED BY:JOB NO.:DATE:CADD BY:CONST. REVIEW: _____/E)NKNNO.DATE BY REVISION DESCRIPTION FILE NAME: 17.00701 CDLF Ph6-PTC-Cap Grades9-1-17.dwgPLAN
+0%*(''6)4#2*+%5%#.'


PERMIT APPROVAL TO CONSTRUCT
2
0
0
'50'50'
50'
50'500'500'500'500'EEEEEEESOIL
ROAD
SOILROADSOILROADSOILROAD POND
GRAVELROADGRAVELROADGRAVELROADNC HWY 251PAN
T
H
E
R
2
0
0
'
50'500'500' ROA
D
S.R. 1745
PAN
T
H
E
R
B
R
A
N
C
H
BRANCH
50'50'
50'500'500'GRAVEL
GRAV
EL
MW
CDLF PHASE 6
WASTE LIMITS
PANTHER BRAN
C
H
200
'
SOIL
ROAD
SOIL
ROAD
SOIL
ROAD
GRAVEL
ROAD
A
B
EROSION CONTROL SEQUENCE:
1. OBTAIN EROSION CONTROL PERMIT PRIOR TO
BEGINNING TREE REMOVAL ACTIVITIES.
2. INSTALL FOREBAYS AS SHOWN.
3. BEGIN TREE AND ROOT REMOVAL OPERATIONS.
4. STABILIZE GRADED AREAS PER THE REQUIREMENTS
NOTED ON SHEET G-002. IN THE DRAINAGE AREA
LEADING TO FOREBAY A, USE EROSION CONTROL MATTING
ON GRADED SLOPES STEEPER THAN 2.5:1.
5. WHERE FEASIBLE, INSTALL TEMPORARY DIVERSION
SWALES TO DIVERT RUNOFF TO AVOID AREAS TO
BE DISTURBED.
OUTLET
GRATE 1886.5'
INV OUT 1877.5'
EXISTING SOIL BORROW AREA
EC PERMIT: BUNCO-2017-018 BUNCOMBE COUNTY LANDFILLBUNCOMBE COUNTY, NORTH CAROLINABUNCOMBE COUNTYCDLF PHASE 6DP16.00701APRIL 2017DPCLEARING AND GRUBBINGEROSION CONTROL PLANSHEETDESIGN REVIEW: _____DESIGNED BY:JOB NO.:DATE:CADD BY:CONST. REVIEW: _____/E)NKNNO.DATE BY REVISION DESCRIPTION FILE NAME: 17.00701 - CDLF Ph 6 PTC-EC Clear and Grub.dwgPLAN
+0%*(''6)4#2*+%5%#.'


PERMIT APPROVAL TO CONSTRUCT
SOIL
ROA
D
SOIL ROADSOILROADGRAVEL
GRAVEL
MW
EXIST.
SOIL
ROAD
GRAVEL
ROAD
S.B. 13 EXISTING OUTLET
GRATE 1886.5'
INV OUT 1877.5'
PROPOSED 24-FOOT GRAVEL ACCESS ROAD
POTENTIAL FUTURE GRAVEL ACCESS ROAD
EXISTING ACCESS ROAD TO BE IMPROVED
TO ACCOMMODATE FUTURE LANDFILL ACCESS AND
TO PROVIDE ACCESS TO S.B. 13 AND LOWER LEVEL
OF PROPOSED CDLF PHASE 6
PROPOSED 20-FOOT GRAVEL ACCESS ROAD
GRAVEL TO BE REMOVED PRIOR TO WASTE FILL IN ROAD AREA
PROPOSED TACK-ON DIVERSION BERM AT BASE GRADES OF LANDFILL, TYP.
INSTALL AT MAX. 4% SLOPE, EXTEND TO DITCH AT PERIPHERY OF CELL
DRAINAGE BERM TO BE REMOVED PRIOR TO WASTE FILL
STORM DRAINAGE PIPE, TYP.
PROPOSED EARTHEN EMBANKMENT - TOP IS MIN. 20-FOOT WIDTH
SLOPE EMBANKMENT EAST AND WEST AT 3%
TO DIRECT RUNOFF TO PERIPHERAL DITCHES
PROPOSED WASTE LIMITS
NEW LANDFILL AREA: 10.0 ACRES
CDLF PH 6 (INCLUDING AREA OVER EXISTING CDLF): 11.6 ACRES
PROPOSED CDLF PHASE 6 BASEGRADES ELEVATION, TYP. - MAX. SLOPE 2.5:1
APPROXIMATE EXISTING WASTE LIMITS
EXISTING CDLF
EXISTING SOIL BORROW AREA
EXIST.
SOIL
ROAD
EXIST.
SOIL
ROAD
EXIST.
SOIL
ROAD
EXIST.
SOIL
ROAD
INV 2078.0
NOTE:
THE BLUE CONTOURS WITHIN THE CDLF PHASE 6 LIMITS REPRESENT THE BASE GRADE ELEVATIONS OF THE CELL.
EC PLAN
BUNCO-2017-001




EXIST.
GRAVEL
ROAD
PROPOSED DRAINAGE PIPE TO BE GROUTED PRIOR TO
WASTE FILL OPERATIONS NEAR PIPE
BUNCOMBE COUNTY LANDFILLBUNCOMBE COUNTY, NORTH CAROLINABUNCOMBE COUNTYCDLF PHASE 6DP17.00701SEPTEMBER 2017DPBASE GRADE EROSIONCONTROL PLANSHEETDESIGN REVIEW: _____DESIGNED BY:JOB NO.:DATE:CADD BY:CONST. REVIEW: _____/E)NKNNO.DATE BY REVISION DESCRIPTION FILE NAME: 17.00701 CDLF Ph6-PTC-Base Grade- ErosionControl rev.dwgPLAN
PERMIT APPROVAL TO CONSTRUCT+0%*(''6)4#2*+%5%#.'



MW
PROPOSED 24-FOOT GRAVEL ACCESS ROAD
GRAVEL ACCESS ROAD
PROPOSED CDLF PHASE 6 TOP OF CAP ELEVATION, TYP.
CONSTRUCT 10-FOOT DRAINAGE TERRACE INTO CAP AT NO GREATER THAN 70 VERTICAL FEET
INSTALL TACK-ON DRAINAGE BERMS AT 35-FOOT INTERVALS (NOT SHOWN HERE)
PROPOSED EARTHEN EMBANKMENT - TOP IS MIN. 20-FOOT WIDTH
SLOPE EMBANKMENT EAST AND WEST AT 3%
TO DIRECT RUNOFF TO PERIPHERAL DITCHES
PROPOSED WASTE LIMITS
NEW LANDFILL AREA: 10.0 ACRES
CDLF PH 6 (INCLUDING AREA OVER EXISTING CDLF): 11.6 ACRES
PROPOSED DRAINAGE PIPE TO BE GROUTED PRIOR TO WASTE FILL
OPERATIONS NEAR PIPE
APPROXIMATE EXISTING WASTE LIMITS
FIELD VERIFICATION REQUIRED
EXISTING CDLF
EXISTING SOIL BORROW AREA
EC PLAN
BUNCO-2017-001
NOTE:
THE RED CONTOURS WITHIN THE CDLF PHASE 6 LIMITS REPRESENT THE FINAL TOP OF CAP ELEVATIONS OF THE CELL.
CAP DRAINAGE TERRACE, TYP.



SOIL ROADSOILROADGRAVEL
GRAVEL
GRAVEL
ROAD
OUTLET
GRATE 1886.5'
INV OUT 1877.5'
EXIST.
SOIL
ROAD
EXIST.
SOIL
ROAD
EXIST.
SOIL
ROAD
EXIST.
SOIL
ROAD
EXIST.
GRAVEL
ROAD BUNCOMBE COUNTY LANDFILLBUNCOMBE COUNTY, NORTH CAROLINABUNCOMBE COUNTYCDLF PHASE 6DP17.00701SEPTEMBER 2017DPFINAL CAP EROSIONCONTROL PLANSHEETDESIGN REVIEW: _____DESIGNED BY:JOB NO.:DATE:CADD BY:CONST. REVIEW: _____/E)NKNNO.DATE BY REVISION DESCRIPTION FILE NAME: 17.00701 CDLF Ph6-PTC-Cap Grades ErosionControl Rev.dwgPLAN
+0%*(''6)4#2*+%5%#.'


PERMIT APPROVAL TO CONSTRUCT
ElevationElevation1910.00
1920.00
1930.00
1940.00
1950.00
1960.00
1970.00
1980.00
1990.00
2000.00
2010.00
2020.00
2030.00
2040.00
2050.00
2060.00
2070.00
2080.00
2090.00
2100.00
2110.00
2120.00
2130.00
1910.00
1920.00
1930.00
1940.00
1950.00
1960.00
1970.00
1980.00
1990.00
2000.00
2010.00
2020.00
2030.00
2040.00
2050.00
2060.00
2070.00
2080.00
2090.00
2100.00
2110.00
2120.00
2130.00
10+00.00 11+00.00
12+00.00
13+00.00 14+00.00 15+00.00 16+00.00 17+00.00 18+00.00 19+00.00 20+00.00GROUNDWATER ELEVATIONS FROM DHRCONSTRUCTED DRAINAGE TERRACE, TYP.
MAX. 70 VERTICAL FEET SPACING
INSTALL TACK-ON DRAINAGE TERRACE, TYP.
BETWEEN CONSTRUCTED TERRACES
MAX. 70 VERTICAL FEET SPACING
PROPOSED DRAINAGE PIPE TO REMAIN IN SERVICE FOR AS LONG AS POSSIBLE DURING INITIAL PHASES OF LANDFILL DEVELOPMENT
GROUT IN PLACE PRIOR TO WASTE PLACEMENT IN THE VICINITY OF THE UPSTREAM INVERT
SECTION A-A
SCALE
HOR.: 1" = 50'
VER.: 1" = 10'WASTE LIMITSWASTE LIMITSACCESS ROADWASTE FILL
TOP 2-FEET OF SUBGRADE MUST MEET SOIL CLASSIFICATIONS NOTE IN SOLID WASTE RULES
OVEREXCAVATE SOILS AS NECESSARY AND PLACE 2-FEET OF CORRECT SOILS, TYP.BERMBEDR
O
C
K
E
L
E
V
A
TI
O
N
S
FROM
D
H
R
NOTE:
MAINTAIN 4' MIN. SEPARATION FROM THE POST-SETTLEMENT
BASEGRADE ELEVATIONS TO BEDROCK OR GROUNDWATER
3 (MAX.)
1
2.5(MAX.)
1
WASTE FIL
L

Y
E
A
R
S

1
-
5
ACCESS ROADMAINTAIN 4' MIN. SEPARATION FROM
POST-SETTLEMENT ELEVATION, TYP.
TOP OF FINAL CAP ELEVATION
5.6' CORRECTION FACTOR
AS OUTLINED IN THE DESIGN HYDRO REPORT
AND APPROVED BY THE NCDEQ
BASEGRADE ELEVATION
EXISTING GROUND ELEVATION BUNCOMBE COUNTY LANDFILLBUNCOMBE COUNTY, NORTH CAROLINABUNCOMBE COUNTYCDLF PHASE 6DP17.00701SEPTEMBER 2017DPCROSS-SECTION A-ASHEETDESIGN REVIEW: _____DESIGNED BY:JOB NO.:DATE:CADD BY:CONST. REVIEW: _____/E)NKNNO.DATE BY REVISION DESCRIPTION FILE NAME: 17.00701 CDLF Ph6-PTC-Cross Sections9-1-17.dwgPERMIT APPROVAL TO CONSTRUCT
ElevationElevationStation
Station
2010.00
2020.00
2030.00
2040.00
2050.00
2060.00
2070.00
2080.00
2090.00
2100.00
2110.00
2120.00
2130.00
2140.00
2150.00
2010.00
2020.00
2030.00
2040.00
2050.00
2060.00
2070.00
2080.00
2090.00
2100.00
2110.00
2120.00
2130.00
2140.00
2150.00
-2+00.00 -1+00.00 0+00.000+00.00 1+00.00 2+00.00 3+00.003+03.04 4+00.00 5+00.00 6+00.00 7+00.00 8+00.00 9+00.00 10+00.00 11+00.00 12+00.00
-2+00.00 -1+00.00 0+00.00
0+00.00
1+00.00 2+00.00 3+00.00
3+03.04
4+00.00
4+62.04
5+00.00 6+00.00 7+00.00 8+00.00 9+00.00
9+05.02
10+00.00 11+00.00 12+00.00
SECTION B-B
SCALE
HOR.: 1" = 50'
VER.: 1" = 10'WASTE LIMITSACCESS ROADEXISTING CDLF PH 5 WASTE LIMITSWASTE FILL
EXISTING
CDLF PHASE 5
WASTE FILL
EXISTING ACCESS ROADGROU
N
D
W
A
T
E
R
E
L
E
V
A
T
I
O
N
S
F
R
O
M
D
H
R
BED
R
O
CK
EL
E
V
ATI
O
N
S
FRO
M
D
H
R
PERMITTED FUTURE CDLF PHASE 5 CAP
INSTALL TACK-ON DRAINAGE TERRACE, TYP.
BETWEEN CONSTRUCTED TERRACES
MAX. 70 VERTICAL FEET SPACING
3 (MAX.)
1
CONSTRUCTED DRAINAGE TERRACE, TYP.
MAX. 70 VERTICAL FEET SPACING
2.5(MAX.)
1
NOTE:
MAINTAIN 4' MIN. SEPARATION FROM THE POST-SETTLEMENT
BASE GRADE ELEVATIONS TO BEDROCK OR GROUNDWATER
EXISTING GROUND ELEVATION
BASE GRADE ELEVATION
INSTALL UNDERDRAIN ALONG EXISTING EPHEMERAL STREAM
WASTE FILL YEARS 1-5
REMOVE EXISTING CDLF PHASE 5 INTERMEDIATE COVER
PRIOR TO WASTE FILLING IN CDLF PHASE 6
TOP OF FINAL CAP ELEVATION
5.6' CORRECTION FACTOR
AS OUTLINED IN THE DESIGN HYDRO REPORT
AND APPROVED BY THE NCDEQ BUNCOMBE COUNTY LANDFILLBUNCOMBE COUNTY, NORTH CAROLINABUNCOMBE COUNTYCDLF PHASE 6DP17.00701SEPTEMBER 2017DPCROSS-SECTION B-BSHEETDESIGN REVIEW: _____DESIGNED BY:JOB NO.:DATE:CADD BY:CONST. REVIEW: _____/E)NKNNO.DATE BY REVISION DESCRIPTION FILE NAME: 17.00701 CDLF Ph6-PTC-Cross Sections9-1-17.dwgPERMIT APPROVAL TO CONSTRUCT
SOIL
ROA
D
SOIL ROADSOILROADGRAVEL
ACCE
S
S
R
O
A
D
MW
GRAVEL
ROAD
OUTLET
GRATE 1886.5'
INV OUT 1877.5'
EXIST.
SOIL
ROAD
EXIST.
SOIL
ROAD
EXIST.
SOIL
ROAD
EXIST.
SOIL
ROAD
EXIST.
SOIL
ROAD
EXIST.
GRAVEL
ROAD
NOTE:
DASHED CONTOURS SHOWN WITHIN CDLF PHASE 6
WASTE LIMITS ARE BASE GRADE ELEVATIONS
WASTE LIMITS BUNCOMBE COUNTY LANDFILLBUNCOMBE COUNTY, NORTH CAROLINABUNCOMBE COUNTYCDLF PHASE 6DP17.00701SEPTEMBER 2017DPWASTE FILLYEAR 1SHEETDESIGN REVIEW: _____DESIGNED BY:JOB NO.:DATE:CADD BY:CONST. REVIEW: _____/E)NKNNO.DATE BY REVISION DESCRIPTION FILE NAME: 17.00701 CDLF Ph 6-PTC-FillSequence Yr 1.dwgPLAN
+0%*(''6)4#2*+%5%#.'


PERMIT APPROVAL TO CONSTRUCTPROPOSED GRADES TO
TIE TO FUTURE GRADING
SOIL
ROA
D
SOIL ROADSOILROADGRAVEL
ACC
E
S
S
R
O
A
D
MW
GRAVEL
ROAD
OUTLET
GRATE 1886.5'
INV OUT 1877.5'
EXIST.
SOIL
ROAD
EXIST.
SOIL
ROAD
EXIST.
SOIL
ROAD
EXIST.
SOIL
ROAD
EXIST.
SOIL
ROAD
EXIST.
GRAVEL
ROAD
ACCESS ROADEXISTING GRAVEL ACCESS ROAD
TO REMAIN IN SERVICE
FOR AS LONG AS POSSIBLE
NOTE:
DASHED CONTOURS SHOWN WITHIN CDLF PHASE 6
WASTE LIMITS ARE BASE GRADE ELEVATIONS
WASTE LIMITS BUNCOMBE COUNTY LANDFILLBUNCOMBE COUNTY, NORTH CAROLINABUNCOMBE COUNTYCDLF PHASE 6DP17.00701SEPTEMBER 2017DPWASTE FILLYEAR 2SHEETDESIGN REVIEW: _____DESIGNED BY:JOB NO.:DATE:CADD BY:CONST. REVIEW: _____/E)NKNNO.DATE BY REVISION DESCRIPTION FILE NAME: 17.00701 CDLF Ph 6-PTC-FillSequence Yr 2.dwgPLAN
+0%*(''6)4#2*+%5%#.'


PERMIT APPROVAL TO CONSTRUCTPROPOSED GRADES TO
TIE TO FUTURE GRADING
SOIL
ROA
D
SOIL ROADSOILROADGRAVEL
GRAVEL
MW
GRAVEL
ROAD
OUTLET
GRATE 1886.5'
INV OUT 1877.5'
EXIST.
SOIL
ROAD
EXIST.
SOIL
ROAD
EXIST.
SOIL
ROAD
EXIST.
SOIL
ROAD
EXIST.
SOIL
ROAD
EXIST.
GRAVEL
ROAD
EXISTING GRAVEL ACCESS ROAD
TO REMAIN IN SERVICE
FOR AS LONG AS POSSIBLE
ACCESS ROADNOTE:
DASHED CONTOURS SHOWN WITHIN CDLF PHASE 6
WASTE LIMITS ARE BASE GRADE ELEVATIONS
WASTE LIMITS BUNCOMBE COUNTY LANDFILLBUNCOMBE COUNTY, NORTH CAROLINABUNCOMBE COUNTYCDLF PHASE 6DP17.00701SEPTEMBER 2017DPWASTE FILLYEAR 3SHEETDESIGN REVIEW: _____DESIGNED BY:JOB NO.:DATE:CADD BY:CONST. REVIEW: _____/E)NKNNO.DATE BY REVISION DESCRIPTION FILE NAME: 17.00701 CDLF Ph 6-PTC-FillSequence Yr 3.dwgPLAN
+0%*(''6)4#2*+%5%#.'


PERMIT APPROVAL TO CONSTRUCTPROPOSED GRADES TO
TIE TO FUTURE GRADING
SOIL
ROA
D
SOIL ROADSOILROADGRAVEL
ACC
E
S
S
R
O
A
D
MW
GRAVEL
ROAD
OUTLET
GRATE 1886.5'
INV OUT 1877.5'
EXIST.
SOIL
ROAD
EXIST.
SOIL
ROAD
EXIST.
SOIL
ROAD
EXIST.
SOIL
ROAD
EXIST.
GRAVEL
ROAD
2010
201520202030INSTALL TACK-ON BERM
INSTALL CONSTRUCTED DRAINAGE TERRACE 2040EXISTING GRAVEL ACCESS ROAD
TO REMAIN IN SERVICE
FOR AS LONG AS POSSIBLE
ACCESS ROAD
EXISTING STORM DRAIN TO REMAIN IN SERVICE FOR AS LONG AS POSSIBLE
GROUT END PRIOR TO BEGINNING WASTE FILL OPERATIONS IN VICINITY OF UPSTREAM INVERT
ACCESS ROADNOTE:
DASHED CONTOURS SHOWN WITHIN CDLF PHASE 6
WASTE LIMITS ARE BASE GRADE ELEVATIONS
WASTE LIMITS BUNCOMBE COUNTY LANDFILLBUNCOMBE COUNTY, NORTH CAROLINABUNCOMBE COUNTYCDLF PHASE 6DP17.00701SEPTEMBER 2017DPWASTE FILLYEAR 4SHEETDESIGN REVIEW: _____DESIGNED BY:JOB NO.:DATE:CADD BY:CONST. REVIEW: _____/E)NKNNO.DATE BY REVISION DESCRIPTION FILE NAME: 17.00701 CDLF Ph 6-PTC-FillSequence Yr 4.dwgPLAN
+0%*(''6)4#2*+%5%#.'


PERMIT APPROVAL TO CONSTRUCTPROPOSED GRADES TO
TIE TO FUTURE GRADING
SOIL
ROA
D
SOIL ROADSOILROADGRAVEL
ACC
E
S
S
R
O
A
D
MW
GRAVEL
ROAD
OUTLET
GRATE 1886.5'
INV OUT 1877.5'
EXIST.
SOIL
ROAD
EXIST.
SOIL
ROAD
EXIST.
SOIL
ROAD
EXIST.
SOIL
ROAD
INSTALL TACK-ON BERM
INSTALL CONSTRUCTED DRAINAGE TERRACE
EXISTING ACCESS ROAD
TO REMAIN IN SERVICE
ACCESS ROAD
ACCESS ROADNOTE:
DASHED CONTOURS SHOWN WITHIN CDLF PHASE 6
WASTE LIMITS ARE BASE GRADE ELEVATIONS
WASTE LIMITS BUNCOMBE COUNTY LANDFILLBUNCOMBE COUNTY, NORTH CAROLINABUNCOMBE COUNTYCDLF PHASE 6DP17.00701SEPTEMBER 2017DPWASTE FILLYEAR 5SHEETDESIGN REVIEW: _____DESIGNED BY:JOB NO.:DATE:CADD BY:CONST. REVIEW: _____/E)NKNNO.DATE BY REVISION DESCRIPTION FILE NAME: 17.00701 CDLF Ph 6-PTC-FillSequence Yr 5.dwgPLAN
+0%*(''6)4#2*+%5%#.'


PERMIT APPROVAL TO CONSTRUCTPROPOSED GRADES TO
TIE TO FUTURE GRADING
DP17.00701AUGUST 2017DPMISCELLANEOUSDETAILSSHEETDESIGN REVIEW: _____DESIGNED BY:JOB NO.:DATE:CADD BY:CONST. REVIEW: _____/E)NKNNO.DATE BY REVISION DESCRIPTIONI:\Drawings\2017\17.00701 - Bunc Co CDLF Ph 6 - Environmental\Design\Solid Waste\Drawings\Permit to Construct\17.00701 CDLF Ph 6-PTC-Cover and DETAILS.dwg 9/15/2017 11:34 AM ADAM WALDROUPFILE NAME: 17.00701 CDLF Ph6-PTC-Cover andDETAILS.dwgMETHANE GAS VENT
LANDFILL BASE
OUTSIDE WASTE LIMITS OR IN TEMPORARY CAP
„SEDIMENTATION/SILT FENCE
EROSION CONTROL NOTES
BUNCOMBE COUNTY
CAP DETAIL
PERMANENT WASTE LIMITS #1 BUNCOMBE COUNTY LANDFILLBUNCOMBE COUNTY, NORTH CAROLINABUNCOMBE COUNTYCDLF PHASE 6PERMIT APPROVAL TO CONSTRUCTTEMPORARY DIVERSION DITCH
WITHIN WASTE LIMITS AT BASEGRADES
DP17.00701AUGUST 2017DPMISCELLANEOUSDETAILSSHEETDESIGN REVIEW: _____DESIGNED BY:JOB NO.:DATE:CADD BY:CONST. REVIEW: _____/E)NKNNO.DATE BY REVISION DESCRIPTIONI:\Drawings\2017\17.00701 - Bunc Co CDLF Ph 6 - Environmental\Design\Solid Waste\Drawings\Permit to Construct\17.00701 CDLF Ph 6-PTC-Cover and DETAILS.dwg 9/15/2017 11:34 AM ADAM WALDROUPFILE NAME: 17.00701 CDLF Ph6-PTC-Cover andDETAILS.dwgPERMANENT WASTE LIMITS #1 BUNCOMBE COUNTY LANDFILLBUNCOMBE COUNTY, NORTH CAROLINABUNCOMBE COUNTYCDLF PHASE 6PERMIT TO CONSTRUCTTACK-ON BERM
CAP CONSTRUCTED TERRACE DETAIL
WASTE LIMITS MARKER DETAIL 4' OFFSET TO WASTE LIMITSOFFSET MARKEREDGE OF WASTE or WASTE LIMITSUNDERDRAIN
PERMANENT WASTE LIMIT MARKER DETAIL
DP17.00701AUGUST 2017DPMISCELLANEOUSDETAILSSHEETDESIGN REVIEW: _____DESIGNED BY:JOB NO.:DATE:CADD BY:CONST. REVIEW: _____/E)NKNNO.DATE BY REVISION DESCRIPTIONI:\Drawings\2017\17.00701 - Bunc Co CDLF Ph 6 - Environmental\Design\Solid Waste\Drawings\Permit to Construct\17.00701 CDLF Ph 6-PTC-Cover and DETAILS.dwg 9/15/2017 11:34 AM ADAM WALDROUPFILE NAME: 17.00701 CDLF Ph6-PTC-Cover andDETAILS.dwgBUNCOMBE COUNTY LANDFILLBUNCOMBE COUNTY, NORTH CAROLINABUNCOMBE COUNTYCDLF PHASE 6PERMIT APPROVAL TO CONSTRUCTTYPICAL TRENCHING DETAIL
HDPE PIPE WITH WASHED STONE EMBEDMENT
NOT TO SCALE
ELEVATION VIEW
PRECAST CONCRETE MANHOLE
JUNCTION BOX
FLAT TOP DETAIL
OUTLET PROTECTION
A A B B
NOT TO SCALE
TYPICAL GRAVEL ACCESS ROAD
NOT TO SCALE
NOT TO SCALE
TYPICAL DITCH DETAIL
CATCH BASIN TOP DETAILS
TYPICAL GRAVEL ACCESS DRIVE
NOT TO SCALE