1203_BurkeCounty_LFGMethaneExceedanceNotice_DIN26409_20151209

2211 West Meadowview Rd.
Greensboro, NC 27407

tel: [phone]
fax: [phone]

www.JoyceEngineering.com

December 11, 2015

Mr. Chris Hollifield
Burke County
General Services Director/County Engineer
P.O. Box 219
Morganton, NC 28680

RE: Burke County, John’s River Landfill
Permit Number 12-03
Fourth Quarterly Landfill Gas Monitoring Report of 2015
JOYCE Project No. 277.1601.12, Task 04

Dear Mr. Hollifield;

The purpose of this letter is to provide you with the results for the December 9, 2015
(fourth quarter) monitoring event at the John’s River Waste Management Facility. Methane was
detected above the lower explosive limit (LEL) in gas probes GP-2S, GP-2I, and GP-2D. Gas
probes GP-2S, GP-2I, and GP-2D are a nested set and are not boundary probes. They are located
in close proximity to waste and the detection of landfill gas is expected. The concentrations are
similar to those detected during previous events.

Gas probes GP-4, GP-5, and GP-6 were installed on September 2, 2014 to monitor the
new Phase 1A cell. Methane was detected in GP-4 above the LEL. GP-4 is located between the
old C&D-over-MSW landfill and the Phase 1A area, and is not a boundary probe. The methane
is more likely from the older cell than Phase 1A.

The passive gas vents GV-1 through GV-7, temporary gas probes TGP-1 through
TGP-10 (excluding TGP-3 and TGP-6 which were destroyed), and selected wells and
piezometers were also monitored, and the results are attached. Exceedences of the LEL for
methane were noted in the passive gas vents, as expected, and in TGP-1, TGP-2, TGP-4, TGP-9,
MW-36 and MW-38. None of these are considered to be boundary probes.

No exceedences were recorded for any of the other probes, monitoring points, or
structures. The methane detections and exceedances are summarized in Tables 1 and 2,
respectively. The landfill gas monitoring logs are also attached. A site map showing probe and
monitoring point locations is also attached.

Mr. Chris Hollifield
December 11, 2015
Page 2 of 2

We have included an EMRF and will forward a copy of this report to Jaclynne
Drummond with the DENR Solid Waste Section. This report should be added to the facility’s
records. If we can provide any additional information please do not hesitate to call Van Burbach
or me at [phone].

Sincerely,
JOYCE ENGINEERING

Gretta A. Eller
Field Consultant

Attachments: NC DENR EMRF
Landfill Gas Monitoring Logs
Site Map with Gas Monitoring Locations

Copy: Jaclynne Drummond, DENR

Table 1: Methane Detections - December 9, 2015
LFG
Probe
CH4
(%Vol.)
CH4
(%LEL)
GP-2 S 59.9 1198
GP-2 I 58.5 1170
GP-2 D 57.9 1158
GP-4 57.7 1154
TGP-1 28.7 574
TGP-2 6.8 136
TGP-4 83.6 1672
TGP-7 0.1 2
TGP-9 18.3 366
MW-36 57.3 1146
MW-38 8.7 174
Table 2: Methane Exceedances - December 9, 2015
LFG
Probe
CH4
(%Vol.)
CH4
(%LEL)
GP-2 S 59.9 1198
GP-2 I 58.5 1170
GP-2 D 57.9 1158
GP-4 57.7 1154
TGP-1 28.7 574
TGP-2 6.8 136
TGP-4 83.6 1672
TGP-9 18.3 366
MW-36 57.3 1146
MW-38 8.7 174
CH4 = Methane
%Vol. = Concentration in pecent-by-volume.
%LEL = Concentration as a percent of the LEL.
LEL = Lower Explosive Limit = 5%Vol.
Burke Co., Johns River Landfill
Permit # 12-03 Joyce Engineering
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