9208_Wake_NCFairgrounds_MSWLF_Feb2023LFG_FID1773350_20230220

Table 1
SUMMARY OF LANDFILL GAS RESULTS
February 2023
Quarterly Landfill Gas Monitoring
(Closed State Fair Landfill)
Wake County, North Carolina
WR Project #02221287.00
Methane
Methane
Carbon
Oxygen
Other
Barometric
Probe #
Dioxide
z
Atmospheric
Pressure
(% CH4)
(% LEL)
% COZ
o
(�� O)
Gases (%)
(Start/Finish)
Performed 02/15/2023
LFG-1
0.0
NA
4.6
15.0
80.4
29.66
LFG-2
0.0
NA
4.3
15.1
80.6
LFG-3
0.0
NA
4.8
15.0
80.2
LFG-4
0.0
NA
1.6
18.1
80.3
LFG-5
0.0
NA
3.4
15.6
81.0
LFG-6
0.0
NA
4.2
15.9
79.9
LFG-7
0.0
NA
4.3
15.5
80.2
LFG-8
0.0
NA
0.6
19.8
79.6
LFG-9
0.0
NA
8.3
9.6
82.1
Notes:
LFG = Landfill
Gas Probe
LEL = Lower
Explosive Limit (i.e. 5% methane by volume)
NA = Not Applicable

PROPERTY LINE
LFG-8
7�
I• -
LFG-7 LFG-9 LFG-2
LFG-1
uVA
t� o
Ld
Lu
z
z
OBSERVED LIMIT
OF WASTE
3.
NLFG-4
LFG-6
OBSERVEC L-IivII
OF WASTE
MW
MW-4
O
O
rl
O
z
co
O N I
r �
u N
u
cq
O
a
N I.
O
O
e�
O
N
0
O
Lij< N
I
N
0 N
O
'm
i
m
2
0
o
a
9
a
LEGEND
W
LANDFILL PROPERTY BOUNDARY
H
PROPERTY LINES FOR
ADJACENT PARCELS
it
PLANIMETRIC FEATURE
(ROADS, STRUCTURES, ETC.)
J
J
LPL
Z
OBSERVED LIMB
C::;7
z
OF BURIED WASTE
O
MW-1 EXISTING
GROUNDWATER MONITORING WELL
{n u
H
z�
O
EXISTING LANDFILL GAS (METHANE)
O
LFG-1 G MONITORING PROBE
0
�Z
O
V
Q Y
�3
u
z
in w
NOTE:
Ld
N =
0
1. TOPOGRAPHIC, PLANIMETRIC, AND PROPERTY LINE INFORMATION
FURNISHED BY CITY OF RALEIGH GIS.
V
2. PROPERTY LINE TAKEN FROM CITY OF RALEIGH GIS.
3. GROUNDWATER MONITORING WELLS AND LANDFILL GAS
MONITORING PROBE LOCATIONS SURVEYED BY WITHERSRAVENEL
-
4. 2013 AERIAL OBTAINED FROM LOCAL GIS.
^ ,
C �
4J 3
i 3
roLL
L a
s v
ci
w
50 100 200
u
Ll

Our People. Your Success
PROBE NO LFG-1
TOTAL DEPTH:
LOCATION:
feet (TD)
VAPOR PROBE FIELD MEASUREMENT LOG
PAGE OF
PROJECT: NC Fairgrounds Closed Landfill
#9208-MSW LF-1982
PROJECT NO: 02221287.00
DATE: February 15, 2023
SAMPLER: M. Maltba
WEATHER CONDITIONS:
Air Temperature
Barometric Pressure 'L� • �j (Stable, Rising, or Falling)
Relative Humidity Ambient Air
Moisture Description Sampling Zone
PURGING:
Calculated Purge Volume (in CCs)
Purge Pump/Device & Purge Rate in CCs
Time Purge Initiated
Purge Volume @ Observed Stabilization (in CCs)
Time Readings Began
LF Gas Meter Readings:
Methane (CH4 in %)
Methane LEL (in %)
Carbon Dioxide (CO2 in %)
Oxygen (02 in %)
Hydrogen Sulfide (H2S in PPM)
Purge Computation:
COMMENTS:
�1
(Dry, Moist, or Flooded)
300 CC/minute (GEM 5000 —300 CC/minute,
MiniRae 2000 --400 CC/minute,
MiniRae 3000 •-500 CC/minute,
\ \ �T- SKC Pump Varies)
Meter Type in Use:
GEM 5000 +
GEM 5000 +
GEM 5000 +
GEM 5000 +
GEM 5000 +
Calibration Notes: Were Meters Calibrated in the Field Prior to Usage? s No
Is Calibration Log Current? Yes No
Meter Notes:
Have all Meter Model and Serial Numbers been Recoded in Field Log? 5sl
No
Do Meters Appear to be Functioning Properly at this Time? YNo
Additional Notes:
LFG Probe Blank Logs_02152023

Our People. Your Success
PROBE NO
TOTAL DEPTH:
LOCATION:
LFG-2
feet (TD)
WEATHER CONDITIONS:
Air Temperature r�
Barometric Pressure
Relative Humidity Ambient Air
Moisture Description Sampling Zone
PURGING:
Calculated Purge Volume (in CCs)
Purge Pump/Device & Purge Rate in CCs
Time Purge Initiated
Purge Volume @ Observed Stabilization (in CCs)
Time Readings Began
LF Gas Meter Readings:
VAPOR PROBE FIELD MEASUREMENT LOG
PAGE OF
PROJECT: NC Fairgrounds Closed Landfill
#9208-MSW LF-1982
PROJECT NO 02221287.00
DATE: February 15, 2023
SAMPLER: M. Maltba
(Stable, Rising, or Falling)
(Dry, Moist, or Flooded)
f
300 CC/minute (GEM 5000 -300 CC/minute,
�. ' 1 MiniRae 2000 --400 CC/minute,
MiniRae 3000 -500 CC/minute,
LfJ SKC Pump Varies)
Methane (CH4 in %) _ V
Methane LEL (in %)
Carbon Dioxide (CO2 in %)
Oxygen (02 in %) ,
Hydrogen Sulfide (H2S in PPM) U
Purge Computation:
COMMENTS:
Meter Type in Use
GEM 5000 +
GEM 5000 +
GEM 5000 +
GEM 5000 +
GEM 5000 +
Calibration Notes: Were Meters Calibrated in the Field Prior to Usage? Yes / No
Is Calibration Log Current? Yes / No
Meter Notes:
Have all Meter Model and Serial Numbers been Recoded in Field Log? Yes / No
Do Meters Appear to be Functioning Properly at this Time? Yes / No
Additional Notes:
LFG Probe Blank Logs_02152023

Our People. Your Success
PROBE NO LFG-3
TOTAL DEPTH:
LOCATION:~
WEATHER CONDITIONS:
feet (TD)
VAPOR PROBE FIELD MEASUREMENT LOG
PAGE OF
PROJECT: NC Fairgrounds Closed Landfill
#9208-MSW LF-1982
PROJECT NO: 02221287.00
DATE: February 15, 2023
SAMPLER: M. Maltba
Air Temperature -j 3 O
Barometric Pressure i> (Stable, Rising, or Falling)
Relative Humidity Ambient Air
Moisture Description Sampling Zone C . (Dry, Moist, or Flooded)
PURGING:
Calculated Purge Volume (in CCs)
Purge Pump/Device & Purge Rate in CCs
Time Purge Initiated
Purge Volume @ Observed Stabilization (in CCs)
Time Readings Began
LF Gas Meter Readings:
Methane (CH4 in %)
Methane LEL (in %)
Carbon Dioxide (CO2 in %)
Oxygen (02 in %)
Hydrogen Sulfide (H2S in PPM)
Purge Computation:
C7
300 CC/minute (GEM 2000 -300 CC/minute,
MiniRae 2000 —400 CC/minute,
MiniRae 3000 —500 CC/minute,
Z- SKC Pump Varies)
COMMENTS:
Calibration Notes: Were Meters Calibrated in the Field Prior to Usage?
Is Calibration Log Current?
Meter Notes:
Have all Meter Model and Serial Numbers been Recoded in Field Log?
Do Meters Appear to be Functioning Properly at this Time?
Additional Notes:
Meter Type in Use:
GEM 2000 +
GEM 2000 +
GEM 2000 +
GEM 2000 +
GEM 2000 +
Yes / No
Yes / No
Yes / No
Yes / No
LFG Probe Blank Logs_02152023

Our People. Your Success
PROBE NO LFG-4
TOTAL DEPTH:
LOCATION:
feet (TD)
VAPOR PROBE FIELD MEASUREMENT LOG
PAGE OF
PROJECT: NC Fairgrounds Closed Landfill
#9208-MSW LF-1982
PROJECT NO: 02221287.00
DATE: February 15, 2023
SAMPLER: M. Maltba
WEATHER CONDITIONS:
Air Temperature ] \OC)
Barometric Pressure /LC . lP (Stable, Rising, or Falling)
Relative Humidity Ambient Air
Moisture Description Sampling Zone
PURGING:
Calculated Purge Volume (in CCs)
Purge Pump/Device & Purge Rate in CCs
Time Purge Initiated
Purge Volume @ Observed Stabilization (in CCs)
Time Readings Began
LF Gas Meter Readings:
C\VA"A (Dry, Moist, or Flooded)
300 CC/minute (GEM 5000 -300 CC/minute,
MiniRae 2000 -400 CC/minute,
MiniRae 3000 —500 CC/minute,
1 Z SKC Pump Varies)
Methane (CH4 in %)
Methane LEL (in %)
Carbon Dioxide (CO2 in %) ; , \p
Oxygen (02 in %) 1�
Hydrogen Sulfide (H2S in PPM) D
Purge Computation.
COMMENTS:
Meter Type in Use:
GEM 5000 +
GEM 5000 +
GEM 5000 +
GEM 5000 +
GEM 5000 +
Calibration Notes: Were Meters Calibrated in the Field Prior to Usage? / No
Is Calibration Log Current? e / No
Meter Notes:
Have all Meter Model and Serial Numbers been Recoded in Field Log? Ye / No
Do Meters Appear to be Functioning Properly at this Time? Ye / No
Additional Notes:
LFG Probe Blank Logs_02152023

Our People. Your Success
PROBE NO LFG-5
TOTAL DEPTH:
LOCATION:!
WEATHER CONDITIONS:
feet (TD)
VAPOR PROBE FIELD MEASUREMENT LOG
PAGE OF
PROJECT: NC Fairgrounds Closed Landfill
#9208-MSW LF-1982
PROJECT NO: 02221287.00
DATE: February 15, 2023
SAMPLER: M. Maltba
Air Temperature
Barometric Pressure, (Stable, Rising, or Falling)
Relative Humidity Ambient Air
Moisture Description Sampling Zone 0��� (Dry, Moist, or Flooded)
PURGING:
Calculated Purge Volume (in CCs)
Purge Pump/Device & Purge Rate in CCs
Time Purge Initiated
Purge Volume @ Observed Stabilization (in CCs)
Time Readings Began
LF Gas Meter Readings:
300 CC/minute
(GEM 5000 -300 CC/minute,
MiniRae 2000 -400 CC/minute,
MiniRae 3000 -500 CC/minute,
Methane (CH4 in %)
Methane LEL (in %)
Carbon Dioxide (CO2 in %)
Oxygen (02 in %) 1ra . \C>
Hydrogen Sulfide (HzS in PPM) b
Purge Computation:
K�]►�IuL��r��
'L ' SKC Pump Varies)
Meter Type in Use
GEM 5000 +
GEM 5000 +
GEM 5000 +
GEM 5000 +
GEM 5000 +
Calibration Notes: Were Meters Calibrated in the Field Prior to Usage? aes / No
Is Calibration Log Current? / No
Meter Notes:
Have all Meter Model and Serial Numbers been Recoded in Field Log? tes
/No
Do Meters Appear to be Functioning Properly at this Time? No
Additional Notes:
LFG Probe Blank Logs_02152023

■■ WithersRavenel
NOOur People. Your Success
PROBE NO LFG-6
TOTAL DEPTH:
LOCATION:
WEATHER CONDITIONS:
feet (TD)
VAPOR PROBE FIELD MEASUREMENT LOG
PAGE OF
PROJECT: NC Fairgrounds Closed Landfill
#9208-MSW LF-1982
PROJECT NO: 02221287.00
DATE: February 15, 2023
SAMPLER: M. Maltba
Air Temperature —I 1 .q—
Barometric Pressure D -�'Pw (Stable, Rising, or Falling)
Relative Humidity Ambient Air ^ , \O
Moisture Description Sampling Zone d1 (Dry, Moist, or Flooded)
PURGING:
Calculated Purge Volume (in CCs)
Purge Pump/Device & Purge Rate in CCs
Time Purge Initiated
Purge Volume @ Observed Stabilization (in CCs)
Time Readings Began
LF Gas Meter Readings:
300 CC/minute (GEM 5000 -300 CC/minute,
Z • 2, MiniRae 2000 -400 CC/minute,
MiniRae 3000 -500 CC/minute,
1� 2tD SKC Pump Varies)
Methane (CH4 in %) 1 • li
Methane LEL (in %) v
Carbon Dioxide (CO2 in %) Lk , 'L
Oxygen (02 in %) p�
Hydrogen Sulfide (H2S in PPM)
Purge Computation:
COMMENTS:
Meter Type in Use:
GEM 5000 +
GEM 5000 +
GEM 5000 +
GEM 5000 +
GEM 5000 +
Calibration Notes: Were Meters Calibrated in the Field Prior to Usage? e / No
Is Calibration Log Current? Ye / No
Meter Notes:
Have all Meter Model and Serial Numbers been Recoded in Field Log? es / No
Do Meters Appear to be Functioning Properly at this Time? ! No
Additional Notes:
LFG Probe Blank Logs_02152023

Our People. Your Success
PROBE NO LFG-7
TOTAL DEPTH:
LOCATION:
WEATHER CONDITIONS:
feet (TD)
VAPOR PROBE FIELD MEASUREMENT LOG
PAGE OF
PROJECT: NC Fairgrounds Closed Landfill
#9208-MSW LF-1982
PROJECT NO: 02221287.00
DATE: February 15, 2023
SAMPLER: M. Maltba
Air Temperature[
Barometric Pressure \-P (Stable, Rising, or Falling)
Relative Humidity Ambient Air
Moisture Description Sampling Zone (Dry, Moist, or Flooded)
PURGING:
Calculated Purge Volume (in CCs)
Purge Pump/Device & Purge Rate in CCs
Time Purge Initiated
Purge Volume @ Observed Stabilization (in CCs)
Time Readings Began
LF Gas Meter Readings:
300 CC/minute (GEM 5000 -300 CC/minute,
`• MiniRae 2000 -400 CC/minute,
MiniRae 3000 -500 CC/minute,
11 �C7 SKC Pump Varies)
Methane (CH4 in %) .
Methane LEL (in %)
Carbon Dioxide (CO2 in %)
Oxygen (02 in %) CD -
Hydrogen Sulfide (H2S in PPM) d
Purge Computation:
COMMENTS:
Calibration Notes. Were Meters Calibrated in the Field Prior to Usage?
Is Calibration Log Current?
Meter Notes:
Have all Meter Model and Serial Numbers been Recoded in Field Log?
Do Meters Appear to be Functioning Properly at this Time?
Additional Notes:
Meter Type in Use:
GEM 5000 +
GEM 5000 +
GEM 5000 +
GEM 5000 +
GEM 5000 +
Yes / No
Yes / No
Yes / No
Yes / No
LFG Probe Blank Logs_02152023

Our People. Your Success
PROBE NO LFG-8
TOTAL DEPTH:
LOCATION:
feet (TD)
WEATHER CONDITIONS:.
Air Temperature 1 .
Barometric Pressure 1101.
Relative Humidity Ambient Air
Moisture Description Sampling Zone
PURGING:
Calculated Purge Volume (in CCs)
Purge Pump/Device & Purge Rate in CCs
Time Purge Initiated
Purge Volume @ Observed Stabilization (in CCs)
Time Readings Began
VAPOR PROBE FIELD MEASUREMENT LOG
PAGE OF
PROJECT:
PROJECT NO
DATE.
SAMPLER:
NC Fairgrounds Closed Landfill
#9208-MSW LF-1982
02221287.00
February 15, 2023
M. Maltba
(Stable, Rising, or Falling)
(Dry, Moist, or Flooded)
300 CC/minute (GEM 2000 -300 CC/minute,
1 1 1 MiniRae 2000 -400 CC/minute,
MiniRae 3000 500 CC/minute,
Z r. SKC Pump Varies)
LF Gas Meter Readings: Meter Type in Use:
Methane (CH4 in %) .� GEM +
Methane LEL (in %) GEM 0 +
Carbon Dioxide (CO2 in %) . 1p GEM 00 +
Oxygen (OZ in %) O� GEM +
Hydrogen Sulfide (HzS in PPM) GEM +
Purge Computation
COMMENTS:
Calibration Notes: Were Meters Calibrated in the Field Prior to Usage? R
/ No
Is Calibration Log Current? Yes / No
Meter Notes:
Have all Meter Model and Serial Numbers been Recoded in Field Log? 9�1
No
Do Meters Appear to be Functioning Properly at this Time? No
Additional Notes:
LFG Probe Blank Logs_02152023

Our People. Your Success
PROBE NO LFG-9
TOTAL DEPTH:
LOCATION:
WEATHER CONDITIONS:
feet (TD)
VAPOR PROBE FIELD MEASUREMENT LOG
PAGE OF
PROJECT: NC Fairgrounds Closed Landfill
#9208-MSW LF-1982
PROJECT NO:
DATE. -
SAMPLER:
02221287.00
February 15, 2023
M. Maltba
Air Temperature s `�
Barometric Pressure 26 (Stable, Rising, or Falling)
Relative Humidity Ambient Air U.
Moisture Description Sampling Zone CW-N—A (Dry, Moist, or Flooded)
J
PURGING:
Calculated Purge Volume (in CCs)
Purge Pump/Device & Purge Rate in CCs
Time Purge Initiated
Purge Volume @ Observed Stabilization (in CCs)
Time Readings Began
LF Gas Meter Readings:
300 CC/minute (GEM 2000 —300 CC/minute,
1 MiniRae 2000 —400 CC/minute,
MiniRae 3000 --500 CC/minute,
i, SKC Pump Varies)
Methane (CH4 in %) ID. O
Methane LEL (in %)
Carbon Dioxide (CO2 in %)
Oxygen (02 in %)
Hydrogen Sulfide (H2S in PPM)
Purge Computation
COMMENTS:
Meter Type in Use
GEM 2,0,50 +
GEM 20 '
GEM 2�-O
GEM 2 0
GEM 6CV+
Calibration Notes: Were Meters Calibrated in the Field Prior to Usage? s / No
Is Calibration Log Current? SO / No
Meter Notes:
Have all Meter Model and Serial Numbers been Recoded in Field Log? M
No
Do Meters Appear to be Functioning Properly at this Time? No
Additional Notes:
LFG Probe Blank Logs_02152023

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