9222_SouthWakeMSWLF_LFGMWAbandonmentRqstAppr_FID1895780_20240909

September 9th, 2024

Sent via email: [e-mail]

Mr. George Metcalf
General Manager
GFL Environmental Inc.
6330 Old Smithfield Road
Apex, NC 27539

Re: Proposed Abandonment of LFG Monitoring Probe MG-24
South Wake Landfill
Permit# 9222-MSWLF-2008
FID: 1895780

Dear Mr. Metcalf:

The Solid Waste Section (Section) has reviewed the Proposed Abandonment of LFG Monitoring Probe MG-
24 (FID 1894485) submitted by Smith Gardner Inc., (S+G) on behalf of GFL Environmental, Inc. MG-24 is
located along the western facility boundary and methane has not been detected above the lower
explosive limit during the last two years of landfill gas monitoring.

A renewable natural gas (RNG) facility is proposed to be constructed immediately west of the landfill unit.
The proposed location for the RNG facility requires the abandonment of MG-24. S+G proposes to abandon
MG-24 during the third quarter of this year and will subsequently submit a revised Landfill Gas Monitoring
Plan for Section review and approval.

The Section approves the landfill gas monitoring well abandonment request and MG-24 should be
abandoned in accordance with 15A NCAC 02C .0113(d). Please contact me at [phone] or by e-mail
at [e-mail] if you have any questions or concerns regarding this letter. Thank you in
advance for your cooperation in this matter.

Sincerely,

Ervin Lane
Hydrogeologist
Solid Waste Section, Division of Waste Management
NCDEQ

cc sent via email: Perry Sugg, P.G. - SWS Environmental Compliance Branch Head
Tim Davis - SWS Environmental Senior Specialist
Allen Gaither,P.E., - SWS Permitting Engineer
Joan Smyth, P.G., - Smith Gardner, Inc.
John Fearrington, P.E., - Smith Gardner, Inc.
John Roberson - Wake County
Jim Fields - Civil & Environmental Consultants