0603_AveryCDLF_LFGPlan_DIN26148_20160527

Landfill Gas Monitoring Plan

Avery County C&D Landfill Facility
Ingalls, North Carolina
Permit No. 06-03

Prepared For:
Avery County Solid Waste Department
Newland, North Carolina

S+G Project No. AVERY 15-7

Madeline German, P.G.
Project Geologist

Joan A. Smyth, P.G.
Senior Hydrogeologist

Revised: May 2016
Original Submittal: March 2016

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5/27/2016

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Avery County Solid Waste Facility Landfill Gas Monitoring Plan
March 2016 Table of Contents Page i
Avery County Solid Waste Facility
Landfill Gas Monitoring Plan

Table of Contents
Page

1.0 INTRODUCTION ......................................................................................................... 1 
1.1 Regulatory Requirements – C&D Landfills .............................................................. 1 
1.2 Guidance Document .................................................................................................. 2 
1.3 Contact Information .................................................................................................. 2 
1.3.1 Owner ............................................................................................................ 2 
1.3.2 Engineer ........................................................................................................ 2 
1.3.3 North Carolina Department of Environmental Quality ................................ 3 
1.4 Existing Site Conditions ............................................................................................. 3 
1.4.1 Site Geology ................................................................................................... 3 
1.4.2 Local Groundwater Regime .......................................................................... 3 
2.0 MONITORING PROGRAM ........................................................................................... 5 
2.1 Perimeter Monitoring Wells ...................................................................................... 5 
2.1.1 Existing Network ........................................................................................... 5 
2.1.2 LFG Monitoring Well Construction ............................................................... 5 
2.2 Monitoring of Facility Structures .............................................................................. 6 
2.3 Monitoring and Reporting ......................................................................................... 6 
2.3.1 Frequency ...................................................................................................... 6 
2.3.2 Personnel ...................................................................................................... 6 
2.3.3 Equipment ..................................................................................................... 6 
2.3.4 Procedures .................................................................................................... 7 
2.3.5 Precautionary Action Plan ............................................................................ 8 
2.3.6 Record Keeping ............................................................................................. 9 
2.4 Maintenance .............................................................................................................. 9 
3.0 CONTINGENCY PLAN .............................................................................................. 11 
3.1 Immediate Action Plan ............................................................................................ 11 
3.1.1 Reporting and Documentation .................................................................... 11 
3.2 Remediation Plan .................................................................................................... 11 

FIGURES
Figure 1 Monitoring Locations Map
Figure 2 Flowchart of Methane Monitoring Requirements

APPENDIX
Appendix A Well Logs
Appendix B Reporting Forms

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Avery County Solid Waste Facility Landfill Gas Management Plan
March 2016 Page 1

1.0 INTRODUCTION
This Landfill Gas (LFG) Monitoring Plan (plan) was prepared by Smith Gardner, Inc. (S+G) to
describe the LFG monitoring program at the Avery County C&D Landfill (NC Solid Waste Permit
06-03), which is located at 2175 Brushy Creek Road, Ingalls, North Carolina. This plan
describes the necessary procedures to satisfy applicable regulatory requirements (Section 1.1)
for landfill gas monitoring.

The best available site data, practices, experience, and judgment were utilized to develop this
plan. However, the plan may require modifications over time to accommodate changing landfill
conditions, changing receptors in areas adjacent to and around the landfill, or other conditions
that cannot be fully anticipated.

Uncontrolled migration of LFG (particularly methane (CH4)) can result in, loss of life, injury,
property loss, vegetative damage, and intolerable odors. Landfill monitoring includes exposure
to explosive gases. Monitoring personnel should be specifically trained in the management and
response for situations such as fire or explosion and confined space entry and possess an
awareness of changing conditions around the landfill.

Note that this plan does not address landfill gas collection and control, air quality, or other
related landfill gas regulations or requirements which may be applicable to this site at present
or in the future.
1.1 Regulatory Requirements – C&D Landfills
Rule 15A NCAC 13B.0544(d) of the North Carolina Solid Waste Management Rules
requires the following for facilities having a C&D landfill:

 Owners or operators of C&D landfill units must ensure that:
o the concentration of methane gas or other explosive gases generated by
the facility does not exceed 25 percent of the lower explosive limit in on-
site facility structures (excluding gas control or recovery system
components);
o the concentration of methane gas or other explosive gases does not
exceed the lower explosive limit for methane or other explosive gases at
the facility property boundary; and
o the facility does not release methane gas or other explosive gases in any
concentration that can be detected in off-site structures.

 Owners or operators of C&D landfill units must implement a routine methane
monitoring program and perform monitoring on at least a quarterly basis.

 If regulatory limits for methane gas concentrations are exceeded, a contingency
plan must be implemented for the protection of human health and safety.

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1.2 Guidance Document
This plan was developed generally following the Landfill Gas Monitoring Guidance
document prepared by the North Carolina Department of Environment Quality (NC DEQ),
Division of Waste Management (DWM)1.
1.3 Contact Information
Correspondence and questions concerning this plan should be directed to the
appropriate contact below:
1.3.1 Owner
Avery County
Avery County C&D Landfill
2175 Brushy Creek Road
Ingalls, North Carolina 28657
Scalehouse Phone: [phone]

Avery County C&D Landfill (Mailing Address)
2175 Brushy Creek Road
Spruce Pine, North Carolina 28777

Avery County Solid Waste Department (Office)
175 Linville Street
Newland, North Carolina 28657
Phone: [phone]

Contact: Eric Foster, Solid Waste Director
[e-mail]
1.3.2 Engineer
Smith Gardner, Inc.
14 N. Boylan Avenue
Raleigh, North Carolina 27603
Phone: [phone]
Contacts: Joan A. Smyth, P.G., Senior Hydrogeologist
[e-mail]
Stacey A. Smith, P.E., Senior Engineer
[e-mail]

1 NC DENR DWM (2010), “Landfill Gas Monitoring Guidance”, NC DENR DWM Solid Waste Section,
November 2010.
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1.3.3 North Carolina Department of Environmental Quality
North Carolina DEQ - Raleigh Central Office (RCO)
217 W Jones Street
Raleigh, North Carolina 27603
Phone: [phone]

Contact: Mr. Perry Sugg
[e-mail]
1.4 Existing Site Conditions
The Avery County C&D Landfill facility (Permit 06-03), located at 2175 Brushy Creek Rd,
Ingalls, NC was in operation from 1996 to 2008. The Facility is located approximately 1.8
miles northeast of the intersection of Highway 19 East and Brushy Creek Road or 1.5
miles northeast from the Avery County Airport. There is residential development in the
site vicinity (within 2000 feet) and commercial development within two (2) miles. The
C&D landfill is approximately 5.4 acres; the site is bounded by forested, undeveloped
land to the north and by low density residential development to the south, east and west.
The site and monitoring network are shown on Figure 1.
1.4.1 Site Geology
The Avery County C&D landfill is located in the Blue Ridge Province of North
Carolina, approximately 12 miles from the Brevard Fault zone. Local bedrock is
comprised of the Alligator Back formation which is a finely laminated gneiss.
Micaceous conglomerate, schist and phyllite are also found within this formation.
Amphibolite was noted in central to northern portions of the site. The site has
been investigated with a total of 16 monitoring wells and piezometers that range
in depth from approximately 20 feet below grade to 88 feet below grade. Bedrock
at the site was encountered at depths that ranged from 31 feet below grade to 88
feet below grade.

Unconsolidated sediments at the site consist of variably micaceous clayey silt to
silty sand weathered from the underlying bedrock. The unconsolidated
sediments are grouped into two lithological units. Unit 1A consists of sediments
exhibiting a standard penetration test of less than 100 blows per foot, while Unit
1B consists of sediments exhibiting a standard penetration test of greater than
100 blows per foot.
1.4.2 Local Groundwater Regime
Groundwater flows from north to south toward the discharge points on-site
streams and Brushy Creek (located across Brushy Creek Road). Depth to
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groundwater ranges from approximately 2865 feet amsl2 to approximately 3020
feet amsl; with an average gradient of 0.12 ft/ft and an average groundwater
velocity of 1.57 ft/day. Lithological Unit 1A has an average hydraulic conductivity
of 1.40 ft/day, while Unit 1B has an average hydraulic conductivity of 2.05 ft/day.
The bedrock aquifer (Unit 2) has an average hydraulic conductivity of 4.65 ft/day.

2 amsl = above mean sea level
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2.0 MONITORING PROGRAM
The landfill gas monitoring plan contained herein includes landfill gas monitoring wells and
structures to be monitored for subsurface landfill gas3 migration.
2.1 Perimeter Monitoring Wells
The monitoring wells are shown on Figure 1.
2.1.1 Existing Network
The perimeter LFG monitoring system is designed to intercept potential
migrating LFG. The existing LFG monitoring network for the Avery County C&D
Landfill includes four wells (GP-1, GP-2, GP-3 and GP-4).

GP-1 is located south of the C&D Phase 2 unit, near CDMW-1A. GP-2 is
positioned inside the property line at the southeastern corner of the C&D landfill.
GP-3 is located approximately north of Sediment Basin 3 on the eastern side of
the C&D Phase 2 unit. GP-4 is located on the eastern side of the C&D landfill
near the junction of Phase 2 and 3. Streams and wetland, natural barriers to LFG
migration, are preset along the western side of the C&D as well as at the
property line north of the C&D unit. Landfill gas monitoring locations are shown
on Figure 1.

Landfill gas monitoring points are focused along the eastern property line where
natural barriers are less prevalent to possible migration pathways. Available
well logs are provided in Appendix A. The landfill gas monitoring network
includes the wells summarized below:

LFG Monitoring
Location
Screened Interval
(ft bgs)
Total Depth
(ft bgs)
GP-1 4-12 12
GP-2 5-9 9
GP-3 5-20 20
GP-4 5-20 20
2.1.2 LFG Monitoring Well Construction
The LFG monitoring wells were installed to depths above the water table in
accordance with 15A NCAC 2C by Mad Dawg Drilling, Inc. in October 2009. Wells
were advanced using hollow stem auger (has) drilling technology and
constructed of two-inch diameter, manufactured PVC well screens with 10-slot

3 The composition of landfill gas is typically approximately 50 percent methane and 50 percent carbon dioxide with
trace amounts (<1 percent) of nitrogen, oxygen, hydrogen sulfide, hydrogen, and non-methane organic compounds
(NMOCs). Of these, methane and hydrogen sulfide are of concern.
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per inch intake spacing and solid PVC riser pipe. A sand filter pack was placed
around the screened interval, to a height of one to three feet above the screen
and a hydrated bentonite plug of two to five feet in thickness was positioned
above the sand pack to seal each well. A protective anodized aluminum casing
and a cement pad for surface protection were also installed. Quick-connect
fittings or stop-cock valves were installed in the cap as a monitoring port in
accordance with SWS guidance.
2.2 Monitoring of Facility Structures
Occupied structures on the property will be monitored quarterly. The following facility
structures will be monitored:

 Scalehouse

If desired, a dedicated methane monitor may be installed within one or more of these
structures. Otherwise, monitoring will be conducted quarterly with the landfill gas
monitoring wells.

Monitored facility structures are shown on Figure 1.
2.3 Monitoring and Reporting
Monitoring and reporting of LFG concentrations will be performed as outlined below.
During these events the following LFG constituents will be monitored: methane,
hydrogen sulfide, oxygen and carbon dioxide.
2.3.1 Frequency
Routine LFG monitoring will be conducted on a quarterly basis.
2.3.2 Personnel
LFG monitoring will be performed by personnel who are familiar with the
requirements of this plan and who are trained in LFG hazards and explosive gas
meter use. As practical, a designated technician will be assigned to regular LFG
monitoring duty.
2.3.3 Equipment
A portable gas analyzer will be used to monitor LFG probes. This analyzer, which
is calibrated to methane (CH4), operates using the infrared spectral property of
methane to measure concentrations in air. Measurements of oxygen (O2) and
carbon dioxide (CO2) will also be made with this meter. This meter may be used
in oxygen deficient areas (less than 10% O2) since oxygen is not required for a
chemical combustion of flammable gases within the meter.
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Hydrogen sulfide (H2S) will also be monitored either with the same meter or with
a specific hydrogen sulfide meter.

On the day of monitoring, prior to monitoring activities, meters will be field
calibrated. All monitoring equipment should be regularly calibrated in
accordance with manufacturer’s specifications and operated only as instructed.
2.3.4 Procedures
Prior to each monitoring event, the portable gas analyzer will be calibrated with a
known calibration standard in accordance with manufacturer’s
recommendations. General information related to the monitoring event,
equipment used, calibration procedures, weather conditions, and results for
each monitoring event will be recorded on the landfill gas monitoring data form
(Appendix B).

The following steps outline the procedure for the monitoring of LFG wells and
facility structures:

 Check calibration date on the meters and calibrate according to
manufacturer’s instructions; allowing equipment to warm up properly
prior to use, per manufacturers direction.
 Purge sample tube for one minute before monitoring.

LFG Monitoring Wells:
o Connect instrument tubing to sample port on the monitoring well
without removing the cap.
o Open the valve and record both the initial and stabilized methane
concentrations. A stabilized concentration will not vary more than
0.5 percent by volume on the instrument’s scale. Also record the
oxygen concentration (at two percent per volume or less to
indicate air is not being drawn into the system and providing false
readings) and the carbon dioxide concentration.
o Close the valve and disconnect the tubing.
o Record monitoring data on the LFG monitoring data form provided
in Appendix B.
o If any methane concentration is greater than 50% of the LEL
(2.5% CH4), monitoring personnel should implement the
Precautionary Action Plan (Section 2.3.5).
o If both initial and stabilized methane concentrations are less than
50% of the LEL (2.5% CH4), move to next LFG monitoring well.
o If any hydrogen sulfide concentration is greater than 4%,
monitoring personnel should, immediately recalibrate and re-
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measure the location. If the concentration is still above 4%, notify
the Landfill Manager and the Engineer.

Structures:
o Walk through the facility structure with a portable methane
analyzer and monitor the perimeter wall interface of the
structure, the floor to wall interface in hallways and rooms, and
any floor penetrations in the structure. Record the initial and
stabilized methane concentrations, oxygen concentration, and
carbon dioxide concentration.
o Record monitoring data on the LFG monitoring data form provided
in Appendix B.
o Notify the Landfill Manager, Operations Manager and the Engineer
for any methane concentration greater than 0% of the LEL.

IF A STABILIZED METHANE CONCENTRATION IS GREATER THAN 100% OF
THE LEL IN A LFG MONITORING WELL OR GREATER THAN 25% OF THE LEL
IN A FACILITY STRUCTURE, THE FOLLOWING ACTIONS WILL BE
IMPLEMENTED:

1) Recalibrate monitoring equipment and confirm results.
2) If results are confirmed, IMMEDIATELY contact the Landfill Manager and
the Engineer.
3) Implement the Action Plan located in Section 3.1.

A flowchart of potential actions if exceedances are noted, is included as Figure 2.
2.3.5 Precautionary Action Plan
If an initial or stabilized methane concentration is equal to or greater than 50% of
the LEL in a LFG monitoring well, monitoring personnel should perform the
following additional steps at this location:

 Measure gas pressure in the well head (in inches of water) using
magnehelic gauge or other appropriate metering device.
 Record at least one additional methane concentration measurement,
inside the well just below the top of casing.
 Evaluate the surrounding area for potential receptors to or signs of LFG
migration. LFG can stress vegetation and can kill trees and grass by root
asphyxiation. Note stressed/dead vegetation areas on the monitoring
form.
 Notify the Landfill Manager and the Engineer for further evaluation.

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2.3.6 Record Keeping
Routine LFG monitoring events will be documented on the LFG monitoring data
form provided in Appendix B. Completed forms will be placed in the landfill
operating record. These forms will be available for review by DWM personnel on
request.

Documentation of any contingency plan actions (Section 3.0) will also be kept in
the operating record.
2.4 Maintenance
Periodic maintenance and site observations will be conducted routinely to address
monitoring program components (at a minimum):

 Maintain access to LFG monitoring locations.
 Perform LFG monitoring well maintenance (maintain well locks, steel casing,
concrete pad, etc.).
 Observe landfill cover conditions, areas of dead vegetation, leachate seeps,
odors, etc. as indications of potential LFG-related problems.

Note deficiencies on the monitoring forms and report to the Solid Waste Operations
Manager for repair or replacement as necessary.

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3.0 CONTINGENCY PLAN
If stabilized explosive gasses are detected at concentrations greater than 100% of the LEL
in a LFG monitoring well or greater than 25% of the LEL in a facility structure, the
technician will perform the actions in the immediate action plan and prepare a remediation plan
as described below.
3.1 Immediate Action Plan
The Solid Waste Operations Manager will perform the following actions for the
protection of human health and safety:

1) Evacuate affected facility structures and the immediate surrounding area.
2) Determine nearby potential receptors (facility and off-site structures).
3) Perform monitoring in any other facility structure near the monitoring location
having the high concentration.
4) Contact the County Fire Department (911). Coordinate evaluation of potentially
affected off-site structures with the Fire Department.
5) Verbally notify the Landfill Manager.
6) Verbally notify the NCDEQ DWM (Section 1.1) as soon as practical.
7) Investigate and identify the potential source(s) and conduit(s) for LFG migration
that may have caused the high concentration (i.e. the migration path that the LFG
may be following to the monitoring location).
8) Identify the LFG extent using bar hole punch sampling methodology or other
applicable alternative method as practical.
9) As appropriate, begin corrective action to control methane concentrations in
structures surrounding the landfill site.
3.1.1 Reporting and Documentation
Within seven days of the detection of a high methane and/or explosive gas
concentration, the Facility will prepare and submit an Environmental Monitoring
Reporting Form (Appendix B) with the results of the monitoring event to the
DWM. The facility will place a description of the actions performed to protect
human health in the operating record.
3.2 Remediation Plan
Within sixty days of the detection of a high methane and/or explosive gas concentration,
a remediation plan describing the problem nature, extent, and proposed remedy will be
submitted to NCDEQ for approval. Following approval the plan will be implemented and
a copy will be placed in the operating record. The DWM will also be notified the plan has
been implemented.

An extension may be granted by the DWM on written request and depending on severity
of the situation.
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Figures

Landfill Gas Monitoring Plan
Avery County Solid Waste Facility
Ingalls, North Carolina
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14 N. Boylan Avenue, Raleigh NC 27603
NC LIC. NO. C-0828 (ENGINEERING)
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© 2016 Smith Gardner, Inc.
FLOWCHART OF
METHANE MONITORING REQUIREMENTS
AVERY COUNTY C&D LANDFILL

J.A.L.J.A.S.N.T.S.AVERY 15-7 2 AVERY-A0249Jan 2016
2.WITHIN 7 DAYS1.IMMEDIATELY 3.WITHIN 60 DAYS
SMITHGARDNER
ENGINEERS
+
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Appendix A
Well Logs
Landfill Gas Monitoring Plan
Avery County Solid Waste Facility
Ingalls, North Carolina
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FIELD BOREHOLE LOG
BOREHOLE NUMBER
PROJECT NAME:LOCATION:
DRILLING CO:
DRILLING METHOD:FIELD PARTY:
GEOLOGIST:DATE BEGUN:COMPLETED:
TOTAL DEPTH:TOP OF CASING ELEV.:
Depth (ft)
Time
Date
STATIC WATER LEVEL (BLS)
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O
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DESCRIPTION LI
T
H
O
L
O
G
Y
WE
L
L
IN
S
T
A
L
L
A
T
I
O
N
0.0
5.0
10.0
0.0
5.0
10.0
DE
P
T
H
Richardson Smith Gardner & Assoc
14 North Boylan Avenue, Raleigh NC 27603
[phone] Page 1 of 1
GROUND ELEV.:NORTHING:EASTING:0 0
Pe
r

6
"
Fe
e
t
In
c
h
e
s
Fe
e
t
GP-1
Geoprobe/HSA
Avery County C&D Landfill
Ingalls, NC
Mad Dawg Drilling Inc
Tom Whitehead
Don Misenheimer
10/26/09 10/26/09
12
Grab
Grab
Grab
GP/HSA SANDY SILT: Dry micaceous brown sandy silt
CLAYEY SANDY SILT: Dry brown micaceous
clayey sandy silt.
CLAYEY SANDY SILT: Clayey sandy silt to sandy
clayey silt with relict structure. Wet at bottom or
borehole. Auger refusal at 12'.
------
--
----
DocuSign Envelope ID: 90995B2E-EB8F-4D34-A5FD-2CBD7041E10A
FIELD BOREHOLE LOG
BOREHOLE NUMBER
PROJECT NAME:LOCATION:
DRILLING CO:
DRILLING METHOD:FIELD PARTY:
GEOLOGIST:DATE BEGUN:COMPLETED:
TOTAL DEPTH:TOP OF CASING ELEV.:
Depth (ft)
Time
Date
STATIC WATER LEVEL (BLS)
DE
P
T
H
BL
O
W

C
O
U
N
T
SA
M
P
L
I
N
G

M
E
T
H
O
D
RE
C
O
V
E
R
Y
DR
I
L
L

M
E
T
H
O
D
DESCRIPTION LI
T
H
O
L
O
G
Y
WE
L
L
IN
S
T
A
L
L
A
T
I
O
N
0.0
5.0
0.0
5.0
DE
P
T
H
Richardson Smith Gardner & Assoc
14 North Boylan Avenue, Raleigh NC 27603
[phone] Page 1 of 1
GROUND ELEV.:NORTHING:EASTING:0 0
Pe
r

6
"
Fe
e
t
In
c
h
e
s
Fe
e
t
GP-2
Geoprobe/HSA
Avery County C&D Landfill
Ingalls, NC
Mad Dawg Drilling Inc
Tom Whitehead
Don Misenheimer
10/29/09 10/29/09
9
Grab
GP/HSA SILTY CLAY: Dry, orange to brown sandy silty clay.
SILTY SAND: Dry, sand and white quartz.
SILTY SAND: Gray to orange silty sand. Geoprobe
refusal at 9', auger refusal encountered in two pilot
holes at depths shallower than 9', therefore, gas probe
was set at 9' with 1-inch dimaeter PVC screen and riser
pipe inside the Geoprobe rod.
DocuSign Envelope ID: 90995B2E-EB8F-4D34-A5FD-2CBD7041E10A
FIELD BOREHOLE LOG
BOREHOLE NUMBER
PROJECT NAME:LOCATION:
DRILLING CO:
DRILLING METHOD:FIELD PARTY:
GEOLOGIST:DATE BEGUN:COMPLETED:
TOTAL DEPTH:TOP OF CASING ELEV.:
Depth (ft)
Time
Date
STATIC WATER LEVEL (BLS)
DE
P
T
H
BL
O
W

C
O
U
N
T
SA
M
P
L
I
N
G

M
E
T
H
O
D
RE
C
O
V
E
R
Y
DR
I
L
L

M
E
T
H
O
D
DESCRIPTION LI
T
H
O
L
O
G
Y
WE
L
L
IN
S
T
A
L
L
A
T
I
O
N
0.0
5.0
10.0
15.0
20.0
0.0
5.0
10.0
15.0
20.0
DE
P
T
H
Richardson Smith Gardner & Assoc
14 North Boylan Avenue, Raleigh NC 27603
[phone] Page 1 of 1
GROUND ELEV.:NORTHING:EASTING:0 0
Pe
r

6
"
Fe
e
t
In
c
h
e
s
Fe
e
t
GP-3
Geoprobe/HSA
Avery County C&D Landfill
Ingalls, NC
Mad Dawg Drilling Inc
Tom Whitehead
Don Misenheimer
10/26/09 10/26/09
20
Grab
Grab
Grab
GP/HSA SILTY CLAY: Dry, red silty clay. Slighty micaceous.
SANDY CLAY: Dry, red sandy clay. Micaceous.
SANDY CLAY: Dry, clayey red to tan saprolite.Micaceous.
SILTY SAND: Dry, tan saprolite.
SILTY SAND: Moist, gray, micaceous saprolite.
SILTY CLAY: Wet, red to orange clay.
SILTY SAND: Wet to moist, gray, micaceous
saprolite. Boring terminated at 20'.
------
--
----
DocuSign Envelope ID: 90995B2E-EB8F-4D34-A5FD-2CBD7041E10A
FIELD BOREHOLE LOG
BOREHOLE NUMBER
PROJECT NAME:LOCATION:
DRILLING CO:
DRILLING METHOD:FIELD PARTY:
GEOLOGIST:DATE BEGUN:COMPLETED:
TOTAL DEPTH:TOP OF CASING ELEV.:
Depth (ft)
Time
Date
STATIC WATER LEVEL (BLS)
DE
P
T
H
BL
O
W

C
O
U
N
T
SA
M
P
L
I
N
G

M
E
T
H
O
D
RE
C
O
V
E
R
Y
DR
I
L
L

M
E
T
H
O
D
DESCRIPTION LI
T
H
O
L
O
G
Y
WE
L
L
IN
S
T
A
L
L
A
T
I
O
N
0.0
5.0
10.0
15.0
20.0
0.0
5.0
10.0
15.0
20.0
DE
P
T
H
Richardson Smith Gardner & Assoc
14 North Boylan Avenue, Raleigh NC 27603
[phone] Page 1 of 1
GROUND ELEV.:NORTHING:EASTING:0 0
Pe
r

6
"
Fe
e
t
In
c
h
e
s
Fe
e
t
GP-4
Geoprobe/HSA
Avery County C&D Landfill
Ingalls, NC
Mad Dawg Drilling Inc
Tom Whitehead
Don Misenheimer
10/29/09 10/29/09
20
Grab
Grab
Grab
GP/HSA SILTY CLAY: Dry, red sandy silty clay, slighty
micaceous.
SILTY CLAY: Dry, red to orange sandy silty clay.
Micaceous with some Mn staining.
SILTY CLAY: Dry, red to orange sandy silty clay.
Micaceous with some Mn staining. Some rock and
saprolite.
SANDY SILT: Dry, orange to brown sandy silt.
Micaceous with saprolite and Mn staining.
SILTY CLAY: Moist, orange to brown sandy silty
clay. Iron stained.
SILTY CLAY: Wet, red to orange silty clay. Saprolite
and some rock. Boring terminated at 20'.
DocuSign Envelope ID: 90995B2E-EB8F-4D34-A5FD-2CBD7041E10A

Appendix B
Reporting Forms
Landfill Gas Monitoring Plan
Avery County Solid Waste Facility
Ingalls, North Carolina
DocuSign Envelope ID: 90995B2E-EB8F-4D34-A5FD-2CBD7041E10A

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DocuSign Envelope ID: 90995B2E-EB8F-4D34-A5FD-2CBD7041E10A
Form based on NC Department of Environment and Natural Resources, Division of Waste Management, Solid Waste Section, Landfill Gas Monitoring
Guidance, November 2010, pg. 16.
Landfill Gas Monitoring Data Form

Notice: This form and any information attached to it are "Public Records" as defined in NC General Statute 132-1. As such, these
documents are available for inspection and examination by any person upon request (NC General Statute 132-6).

Facility Name: ______________________________________________ Permit Number: ______________
Date of Sampling: ___________________ NC Landfill Rule (.0500 or .1600): _____________________
Name and Position of Sample Collector: _________________________________________
Type and Serial Number of Gas Meter: _______________________________ Calibration Date of Gas Meter: _____________
Date and Time of Field Calibration: ___________________Type of Field Calibration Gas (15/15 or 35/50): ____________
Expiration Date of Field Calibration Gas Canister: ________Pump Rate of Gas Meter: _____________
Ambient Air Temperature: __________ Barometric Pressure: ______________General Weather Conditions: _____________
Instructions: Under “Location or LFG Well” identify the monitoring wells or describe the location for other tests (e.g., inside buildings).
A drawing showing the location of test must be attached. Report methane readings in both % LEL and % methane by volume. A reading
in percent methane by volume can be converted to % LEL as follows: % methane by volume = % LEL/20.

Location
or LFG
Well ID
Sample
Tube
Purge
Time
Time
Pumped
(s)
Initial
% LEL
Stabilized
% LEL
%CH4 by
Volume %O2 %CO2 H2S
(ppm) Notes

If your facility has more gas monitoring locations than there is room on this form, please attach additional sheets listing the same
information as contained on this form.

Certification
To the best of my knowledge, the information reported and statements made on this data submittal and attachments are true
and correct. I am aware that there are significant penalties for making any false statement, representation, or certification
including the possibility of a fine and imprisonment.

_________________________________________ _________________________________________
SIGNATURE TITLE
DocuSign Envelope ID: 90995B2E-EB8F-4D34-A5FD-2CBD7041E10A
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DocuSign Envelope ID: 90995B2E-EB8F-4D34-A5FD-2CBD7041E10A
DocuSign Envelope ID: 90995B2E-EB8F-4D34-A5FD-2CBD7041E10A
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DocuSign Envelope ID: 90995B2E-EB8F-4D34-A5FD-2CBD7041E10A