8401_AlbemarleCityMSWLF_LFGApproval_26514_20160725

PAT MCCRORY
Governor
DONALD R. VAN DER VAART
Secretary

MICHAEL SCOTT
Director
State of North Carolina | Environmental Quality | Waste Management
1646 Mail Service Center | 217 West Jones Street | Raleigh, NC 27699-1646
919 707 8200 T

July 25, 2016

Ms. Nina Underwood
City of Albemarle Public Works
144 North 2nd Street
Albemarle, NC 28001

Re: Methane Monitoring Network Revision
City of Albemarle – Active C&D and Closed MSWLF, Permit #84-01

Dear Ms. Underwood,

The Solid Waste Section (Section) has reviewed the proposal to install new landfill gas monitoring probes
(DIN# 26506) submitted by Shield Engineering, Inc. (Shield). Landfill gas has been detected at levels
exceeding the lower explosive limit in probes MP-9 and MP-12 during recent monitoring events.
Monitoring probes MP-9 and MP-12 were installed in close proximity to the western waste boundary prior
to the purchase of additional land for use as buffer. Shield has requested to install new landfill gas probes
(MP-31 and MP-32) within the recently purchased property to replace existing probes MP-9 and MP-12.

The Section approves the requested modification to the landfill gas monitoring network and the City of
Albemarle is allowed to proceed with its implementation. The City of Albemarle should conduct landfill
gas monitoring probe installation and abandonment in accordance with 15A NCAC 02C .0100, in addition
to submitting installation and abandonment records to the Section. The City of Albemarle should also
submit a revised landfill gas monitoring plan reflecting the monitoring network modification.

If you have any questions or additional requests, please feel free to contact me at [phone] or by e-
mail at [e-mail]. Thank you in advance for your anticipated cooperation with this matter.

Sincerely,

Ervin Lane
Compliance Hydrogeologist
Solid Waste Section

cc: David Wallace, P.E., Shield Engineering, Inc.
Jason Watkins, Field Operations Branch Head
Deb Aja, Western District Supervisor
Teresa Bradford, Environmental Senior Specialist
Perry Sugg, P.G., Permitting Hydrogeologist