3404_CityOfKernersville_LFG_DIN27773_20160805

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

August 19, 2016

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 – July 2016
Town of Kernersville Closed Landfill, Permit 34-04
WithersRavenel Project No. 06160093.00
Dear Ms. Drummond:
WithersRavenel, Inc. (WR) is pleased to announce that we will be conducting monthly
methane monitoring at the Town of Kernersville Closed Landfill (Permit 34-04) for the
calendar year 2016-2017.
Attached is an Environmental Monitoring Reporting Form (EMRF) and a Monthly Landfill Gas
Monitoring Report (Report) for the monthly monitoring event that was conducted on August
5th, 2016. 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. The event
was originally scheduled for the last week in July to match the sampling frequency formally
performed by Joyce Engineering (Joyce), but was postponed several times due to inclement
weather and prevalent low pressure systems.
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). Unfortunately, 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. The Town is currently negotiating with Waste Management to obtain access
to the shared wells for future monitoring events.
As tabulated on the attached Report, methane (CH4) gas was not detected in five of the seven
LFG probes monitored on August 5th. Elevated levels of CH4, detected in concentrations above
the Lower Explosive Limit (>LEL), were detected in GW-1 and GPW-2R, consistent with
historical reported CH4 concentrations. WR personnel will continue to monitor CH4 gas levels
at the Town of Kernersville Closed Landfill on a 30-day frequency, typically the last week of
the month.
WithersRavenel
Our People. Your Success.

Landfill Gas Monitoring Report WR Project No. 06160093.00
Town of Kernersville August 19, 2016
Page 2 of 2

WithersRavenel, on behalf of the Town of Kernersville, appreciates the opportunity to submit
this report to the Solid Waste Section. Please contact us at [e-mail] or
336.605.3009 with comments, questions, or requests.
Sincerely
WithersRavenel

Mark Brown, LG, PG, RSM
Senior Geologist

Smb/SMB

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
July 2016
Town of Kernersville
Closed MSWLF, Permit No. 34-04 Page 1 of 1
WithersRavenel
July 2016
34-04
Sampling Date:W. Owens/M. Brown
8/3/2016
8/5/2016 10:15
50% CH4 35% CO2
29.16 In-Hg (Avg.)
80.6 OF Rising Falling Steady
78.3 %
Probe ID Time Pressure
Instr.
Sample
Tube
Time
Pumped
(sec.)
CH4
(%vol.)
CH4
(%LEL)Notes
GW-1 9:28 29.20 Y 60 34.6 692.0 >LEL
GW-2R 9:39 29.18 Y 60 58.1 1162.0 >LEL
GW-3 11:04 29.16 Y 60 0.0 0.0
GW-4 10:25 29.20 Y 60 0.0 0.0
GW-5 9:11 29.23 Y 60 0.0 0.0
GW-6 10:46 29.17 Y 60 0.6 12.0
GW-7 11:15 29.10 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:
Facility Name:Town of Kernersville Closed LF Permit Number:
8/5/2016 Field Personnel:
LANDFILL GAS MONITORING DATA FORM
Gas Monitor Type and Serial No.GEM 2000+Calibration Date:
Field Calibration Date/Time:
Field Calibration Gas Type:Cal. Gas Lot:

General Weather Conditions:Ptly. Cloudy - Humid Barometer:
Relative Humidity:
Ambient Temperature:Pressure:
GW = Gas Well -Town of Kernersville LFG monitoring location
GP = Gas Probe - LFG monitoring location shared with Waste Management Piedmont site.