3406_PiedmontLandfill_LFG_Q3Rpt_20130707

2211 West Meadowview Rd.
Greensboro, NC 27407

tel: [phone]
fax: [phone]

www.JoyceEngineering.com

July 7, 2013

Al Lacsamana, P.E.
District Manager, CSMG
Waste Management
1850 Parkway Place, Suite 600
Marietta, GA 30067

RE: THIRD QUARTER LANDFILL GAS MONITORING
PIEDMONT LANDFILL & RECYCLING CENTER
JOYCE PROJECT NO. 392.1301.12, TASK 03

Dear Al:

Attached to this letter is the landfill gas/methane migration monitoring report for the third
quarter-annual event of 2013 at the Piedmont Landfill in Kernersville, North Carolina. Please add
this report to your records. You should have received a color PDF copy via e-mail. The ten
permanent gas probes, eighteen bar-hole probes, and one on-site structure were monitored on July 31,
2013. Methane was detected in GP-10 at 51.9% by volume and is an exceedence of the LEL.
Methane has been historically detected in GP-10. Methane migration to GP-10 has been attributed to
the closer proximity of the unlined Kernersville Landfill and has been further delineated by that
facility. However, the NC DENR - Solid Waste Section (SWS) still requires notification within five
business days of the exceedence, and for the site records to be maintained for inspections.

There were no other exceedences of the LEL of methane in the remaining site probes measured
during this monitoring event. The Next Quarterly Methane Monitoring event is currently scheduled
in October. If you have any questions concerning this monitoring event, or anything else, please do
not hesitate to contact me, Larry Hineline, or Steve Cowie at (336)-323-0092.

Sincerely,
JOYCE ENGINEERING

Daniel S. Girdner
Staff Consultant

Enclosure: Landfill Gas Monitoring – Third Quarter 2013 Report

Cc: Mike Quedens – WM (email only)
Judy Armour, P.E. – WM (email only)
Environmental Engineers, Scientists & Consultants

2211 W. Meadowview Road, Suite 101
Greensboro, NC 27407
tel: [phone]
fax: [phone]
www.JoyceEngineering.com

August 7, 2013

Ms. Jackie Drummond
North Carolina Department of Environment and Natural Resources
Division of Waste Management, Solid Waste Section
1646 Mail Service Center
Raleigh, North Carolina 27699-1646

RE: Landfill Gas Monitoring – Third Quarter 2013
Piedmont Landfill and Recycling Center, Permit 34-06
JOYCE Project No. 392.1301.12, Task No. 03

Dear Ms. Drummond:

Landfill gas monitoring for the closed Piedmont Landfill and Recycling Center was
conducted by Joyce Engineering on July 31, 2013. The Environmental Monitoring Reporting
Form (EMRF) and Monitoring Data Log of the results are attached for this third quarterly event.
Methane was detected in gas probe GP-10 above the LEL on this date. Methane has been
previously detected in GP-10 over the limit, but the methane has been attributed to migration
from close proximity of the Kernersville Landfill that is unlined. Piedmont Landfill and
Recycling Center will continue monitoring landfill gas on a quarterly basis, with the next event
scheduled in October 2013. If you have any further questions, please contact me or Larry
Hineline at [phone]. Thank you.

Sincerely,
JOYCE ENGINEERING

Daniel Girdner
Staff Consultant

Enclosures: EMRF
Landfill Gas Monitoring Data Log
Drawing

cc: Al Lacsamana, P.E. – WM
Landfill Gas Monitoring Data LogFacility Name: Waste Management - Piedmont Landfill Permit Number: 34-06Date of Sampling: Personnel: D. Girdner, A. Cox / JOYCEGas Monitor Type & Serial Number: GEM 2000 #5194Calibration Date: 03/10/13Field Calibration Date & Time: Calibration Gas Type: 15% CH4, exp. 4-2016General Weather Conditions: Partly cloudy, 81° FBarometer : 30.09 In-Hg Location or LFG WellIDInstr. purgedTimeProbe Pressure (InWg)Time Pumped (seconds)CH4 (%Vol.)CH4 (%LEL)% LEL LimitPED-BH001Y11:39na 15 0 0 100PED-BH002Y11:37na 15 0 0 100PED-BH003Y11:36na 15 0 0 100PED-BH004Y11:34na 15 0 0 100PED-BH005Y11:33na 15 0 0 100PED-BH006Y11:29na 15 0 0 100PED-BH007Y11:28na 15 0 0 100PED-BH008Y11:27na 15 0 0 100PED-BH009Y11:25na 15 0 0 100PED-BH010Y11:20na 15 0 0 100PED-BH011Y11:19na 15 0 0 100PED-BH012Y11:18na 15 0 0 100PED-BH013Y11:15na 15 0 0 100PED-BH014Y11:11na 15 0 0 100PED-BH015Y11:09na 15 0 0 100PED-BH016Y11:08na 15 0 0 100PED-BH017Y11:06na 15 0 0 100PED-GP001Y12:101.100 60 0 0 100PED-GP002Y12:141.030 60 0 0 100PED-GP003Y 11:420.010 60 0 0 100PED-GP004Y11:22-0.180 60 0 0 100PED-GP005Y11:14-0.190 60 0 0 100PED-GP006Y11:01-0.130 60 0 0 100PED-GP007Y12:370.24 60 0 0 100PED-GP008Y12:44n/a 15 0 0 100PED-GP009Y 11:58-0.020 60 0 0 100PED-GP010Y 11:540.900 60 51.9 1038 100PED-GP011Y 11:49-0.010 60 0 0 100PED-LO001Y12:50n/a Cont. 0 0 25Abbreviations: LEL= Lower Explosive Limitna = not applicableInWg = inches of water columnGP = Gas Monitoring ProbeBH = bar-hole probeLO = Landfill Office (now LFGTE Plant office)07/31/137/31/2013 10:43Notesexceeds limitOffice