3404_CityOfKernersville_LFG_DIN27775_20163016

WithersRavenel
Our People. Your Success.

7011 Albert Pick Road, Suite G | Greensboro, NC 27409
t: 336.605.3009 | f: 919.467.6008 | www.withersravenel.com | License No. C-0832
Cary | Greensboro | Pittsboro | Raleigh | Wilmington

January 23, 2017

Ms. Jackie Drummond
North Carolina Department of Environmental Quality
Division of Waste Management, Solid Waste Section
1646 Mail Service Center
Raleigh, North Carolina 27699-1646

RE: Landfill Gas Monitoring Report
LFG Monitoring- Monthly Monitoring Event for December 2016
Town of Kernersville Closed Landfill, Permit 34-04
WithersRavenel Project No. 06160093.00
Dear Ms. Drummond:
Attached are a Monthly Landfill Gas Monitoring Report and an Environmental Monitoring Reporting
Form (EMRF) for the monthly monitoring event that was conducted on December 30, 2016 by
WithersRavenel. Inc. at the Town of Kernersville Closed Landfill (Landfill), Permit 34-04. This event
was conducted on behalf of the Town of Kernersville (Town) in accordance with the approved Landfill
Gas Monitoring Plan, dated July 17, 2012.
As in past monitoring events, methane monitoring was planned to be conducted in the eight landfill
gas (LFG) probes located on the Town’s property (designated GW-1 through GW-8) and three LFG
probes shared with the Waste Management Piedmont Landfill (designated GP-9 through GP-11).
Access to the locked security fences and the LFG probes located inside (GW-8, GP-9, GP-10 and GP-
11) was not gained in time to be included with this sampling event. To offset the lack of access to the
Piedmont Landfill property, WR has submitted a cost proposal to the Town to install replacement LFG
sentinel wells within the property boundaries so that future sampling events, after the upcoming
January 30, 2017, can include data to demonstrate that LFGs are not migrating off the landfill property.
As shown on the attached Monthly Landfill Gas Monitoring Report, methane gas was not detected in
five of the seven LFG probes monitored on November 30, 2016. Elevated levels of methane gas were
detected in concentrations above the Lower Explosive Limit (LEL) in GW-1 and GW-2R.
WithersRavenel, on behalf of the Town of Kernersville, appreciates the opportunity to submit this
report to the Solid Waste Section. Please contact me with comments, questions, or requests.
Sincerely
WithersRavenel

Mark Brown, LG, PG, RSM
Senior Geologist

Attachments

Electronic Copy: Thad Buck, Town of Kernersville
MONTHLY LANDFILL GAS MONITORING REPORT
Town of Kernersville Closed Landfill
Permit Number 34-04
Kernersville, North Carolina
December 2016
Town of Kernersville
Closed MSWLF, Permit No. 34-04 Page 1 of 1
WithersRavenel
December 2016
Sampling Date: M. Brown
12/29/16 7:56
12/30/2016 9:00
50% CH4 35% CO2
29.25 In-Hg (Avg.)
42.2 OF
30.7 %
Probe ID Time Pressure
Instr.
Sample
Tube
Time
Pumped
(sec.)
CH4
(%vol.)
CH4
(%LEL)
GW-5 9:22 29.24 Y 60 0.0 0.0
GW-1 9:58 29.24 Y 60 5.2 104.0
GW-2R 9:52 29.24 Y 60 7.7 154.0
GW-4
GW-6 10:05 29.24 Y 60 0.0 0.0
GW-3 10:15 29.28 Y 60 0.0 0.0
GW-7 10:17 29.28 Y 60 0.0 0.0
GW-8 Security gate locked - could not sample
GP-9 Security gate locked - could not sample
GP-10 Security gate locked - could not sample
GP-11 Security gate locked - could not sample
Notes:
GW = Gas Well -Town of Kernersville LFG monitoring location
GP = Gas Probe - LFG monitoring location shared with Waste Management Piedmont site.

Ambient Temperature:Pressure:Rising Falling Steady
Relative Humidity:
Notes
Over LEL
Over LEL
Typically 0.0 % vol CH 4Did not sample due to weapon practice at adjacent firing range
Field Calibration Gas Type:Cal. Gas Lot:KAP-412-13
General Weather Conditions:Clear and Warm Barometer:
Field Calibration Date/Time:
LANDFILL GAS MONITORING DATA FORM
Facility Name:Town of Kernersville Closed LF Permit Number:34-04
12/30/16 Field Personnel:
Gas Monitor Type and Serial No.GEM 2000+Calibration Date:
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