1203_BurkeCounty_LFGMR_DIN28595_20171002

2211 West Meadowview Rd.
Greensboro, NC 27407

tel: [phone]
fax: [phone]
www.JoyceEngineering.com

October 2, 2017

Miles Champion, PE
General Services Director / County Engineer
Burke County
P.O. Box 1486
Morganton, NC 28680

RE: Burke County, Johns River Landfill
Permit Number 12-03
Third Quarterly Landfill Gas Monitoring Report of 2017
JOYCE Project No. 277.1801.12, Task 04

Dear Mr. Champion;

The purpose of this letter is to provide you with the results for the September 25, 2017,
(third quarter) monitoring event at the Johns 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
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 old landfill 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. Exceedances of the LEL for
methane were noted in the passive gas vents, as expected, and in TGP-4 and TGP-9. None of
these are considered to be boundary probes.

No methane exceedances 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.

A revised Landfill Gas Monitoring Plan (LFGMP) was submitted to the NCDEQ in
February 2017 as part of an application for a permit to construct Phases 2A and 4 of the C&D
landfill; however, this revised LFGMP has not yet been approved by the NCDEQ. Per a request
Mr. Miles Champion
October 2, 2017
Page 2 of 2

from the NCDEQ, the revised LFGMP incorporated monitoring for hydrogen sulfide gas (H2S).
The September 2017 monitoring event represents the second event to include monitoring for
H2S. The LEL for H2S is 40,000 ppm; however, the H2S concentrations are monitored in the 1-
500 ppm range because H2S is dangerous to human health at levels as low as 10 ppm. No H2S
was detected in any gas probes or structures. H2S was detected between 0-19 ppm is the gas
vents that were monitored. Although this is not a regulatory exceedance, we recommend that
facility personnel and anyone working in the vicinity of the gas vents be informed of the
potential hazard, and that appropriate precautions be taken.

We have included an EMRF and will forward a copy of this report to Jaclynne
Drummond with the NCDEQ 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 me at
[phone].

Sincerely,
JOYCE ENGINEERING

Van Burbach, Ph.D., P.G.
Sr. Technical Consultant

Attachments: NCDEQ EMRF
Summary Tables 1 & 2
Landfill Gas Monitoring Logs
Site Map with Gas Monitoring Locations

cc: Jaclynne Drummond, NCDEQ

LFG
Probe
CH4
(%Vol.)
CH4
(%LEL)
H2S
(ppm)
GP-2 S 53.9 1078 0
GP-2 I 53.2 1064 0
GP-2 D 53.4 1068 0
GP-4 53.6 1072 0
TGP-4 48.2 964 0
TGP-9 9.0 180 0
MW-36 36.8 736 2
LFG
Probe
CH4
(%Vol.)
CH4
(%LEL)
H2S
(ppm)
GP-2 S 53.9 1078 ---
GP-2 I 53.2 1064 ---
GP-2 D 53.4 1068 ---
GP-4 53.6 1072 ---
TGP-4 48.2 964 ---
TGP-9 9.0 180 ---
MW-36 36.8 736 ---
GP = Gas Probe, permanent installation.
S = Shallow Screen. I = Intermediate Screen. D = Deep Screen.
TGP = Temporary Gas Probe for delineation study.
CH4 = Methane.
H2S= Hydrogen Sulfide.
%Vol. = Concentration in pecent-by-volume.
%LEL = Concentration as a percent of the LEL.
ppm = Concentration in parts per million.
LEL = Lower Explosive Limit = 5 %Vol. for CH4; 40,000 ppm for H2S.
Table 2: Methane & Hydrogen Sulfide Exceedances of the LEL - September 25, 2017
Table 1: Methane & Hydrogen Sulfide Detections - September 25, 2017
Burke Co. - Johns River Landfill
Permit # 12-03
Burke Co., Johns River Landfill
Permit # 12-03 Joyce Engineering
Landfill Gas Monitoring Data FormFacility Name: Johns River Waste Management FacilityPermit Number: 12-03Date of Sampling: Personnel: H. Seaton/ JOYCEGas Monitor Type & Serial Number: GEM 5000 (rental)Calibration Date: Field Calibration Date & Time: Calibration Gas: 15% Vol. CH4; 50 ppm H2S; 1000 ppm COGeneral Weather Conditions: Sunny 80'sBarometer : 29.80 In-HgGP-1 S Y 1445 +0.02 60 0.0 0 100 0 40,000GP-1 D Y 1447 +0.01 60 0.0 0 100 0 40,000GP-2 S Y 1619 +0.00 60 53.9 1078 100 0 40,000GP-2 I Y 1622+0.0160 53.2 1064 100 0 40,000GP-2 D Y 1620 +0.00 60 53.4 1068 100 0 40,000GP-3 S Y 1556 +0.01 60 0.0 0 100 0 40,000GP-3 D Y 1558 +0.00 60 0.0 0 100 0 40,000GP-4 Y 1612 +0.00 60 53.6 1072 100 0 40,000GP-5 Y 1518 +0.00 60 0.0 0 100 0 40,000GP-6 Y 1511 +0.00 60 0.0 0 100 0 40,000GMP-1 Y 1640 -- continuous 0.0 0 25 0 10,000GMP-2 Y 1505 -- continuous 0.0 0 25 0 10,000GMP-3 Y 1507 -- continuous 0.0 0 25 0 10,000GMP-4 Y 1510 -- continuous 0.0 0 100 0 40,000GMP-5 Y 1405 -- continuous 0.0 0 100 0 40,000GMP-6 Y 1406 -- continuous 0.0 0 100 0 40,000GMP-7 Y 1407 -- continuous 0.0 0 100 0 40,000GMP-7A Y 1409 -- continuous 0.0 0 25 0 10,000 Storage BarnGMP-8 Y 1411 -- continuous 0.0 0 100 0 40,000GMP-9 Y 1412 -- continuous 0.0 0 100 0 40,000GMP-10 Y 1415 -- continuous 0.0 0 100 0 40,000GMP-11 Y 1417 -- continuous 0.0 0 100 0 40,000GMP-12 Y 1419 -- continuous 0.0 0 100 0 40,000GMP-13 Y 1427 -- continuous 0.0 0 25 0 10,000GMP-14 Y 1501 -- continuous 0.0 0 25 0 10,000Abbreviations: GP = Gas Probe. In-Wg = Inches of water column.S = Shallow depth (silver cap). In-Hg = Inches of mercury.I = Intermediate depth (blue cap). CH4 = Methane.D = Deep depth (red cap). LEL = Lower Explosive Limit.GMP = Gas Monitoring Point. (LEL for methane = 5% at standard temperature & pressure.)H2S= Hydrogen Sulfide in parts per million (ppm).(LEL for H2S = 40,000 ppm.)Firing Range StructureTransfer Station Bldg.Office & Shop BuildingRecycling CenterNotesScale HouseSeptember 25, 2017Location or LFG Well IDInstr. Purged?Probe Pressure (In-Wg)CH4 (%Vol.)TimeJanuary 5, 2017Time Pumped (sec.)CH4 Limit (%LEL)9/25/2017 9:00CH4 (%LEL)H2S (ppm)H2S Limit (ppm)
Landfill Gas Monitoring Data FormFacility Name: Johns River Waste Management FacilityPermit Number: 12-03Date of Sampling: Personnel: H. Seaton / JOYCEGas Monitor Type & Serial Number: GEM 5000 (rental)Calibration Date: Field Calibration Date & Time: Calibration Gas: 15% Vol. CH4, 50 ppm H2S, 1000 ppm CO General Weather Conditions: Sunny 80'sBarometer: 29.80 In-HgGV-1 Y 1328 +0.04 45 54.5 1090 NA 7 NAGV-2 Y 1330 +0.06 45 55.6 1112 NA 14 NAGV-3 Y 1331 +0.04 45 55.8 1116 NA 8 NAGV-4 Y 1333 +0.03 45 33.6 672 NA 12 NAGV-5 Y 1334 +0.03 45 54.8 1096 NA 16 NAGV-6 Y 1335 +0.06 45 56.1 1122 NA 5 NAGV-7 Y 1337 +0.06 45 29.2 584 NA 10 NATGP-1 Y 1522 +0.00 45 0.0 0 NA 0 NATGP-2 Y 1526 +0.00 45 0.0 0 NA 0 NATGP-4 Y 1543 +0.02 45 48.2 964 NA 0 NATGP-5 Y 1605 +0.00 45 0.0 0 NA 0 NATGP-7 Y 1537 +0.00 45 0.0 0 NA 0 NATGP-8 Y 1538 +0.00 45 0.0 0 NA 0 NATGP-9 Y 1546 +0.02 45 9.0 180 NA 0 NATGP-10 Y 1608 +0.00 45 0.0 0 NA 0 NAPZ-30S Y 1533 -- 45 0.0 0 NA 0 NAPZ-31 Y 1529 -- 45 0.0 0 NA 0 NAPZ-35 Y 1530 -- 45 0.0 0 NA 0 NAMW-36 Y 1615 -- 45 36.8 736 NA 2 NAMW-38 Y 1541 -- 45 0.0 0 NA 0 NAAbbreviations: GV = Gas Vent. In-Wg = Inches of water column.TGP = Temporary Gas Probe. In-Hg = Inches of mercury.PZ = Piezometer.CH4 = Methane.MW = Monitoring well. LEL = Lower Explosive Limit.(LEL for methane = 5% at standard temperature & pressure.)H2S= Hydrogen Sulfide in parts per million (ppm).(LEL for H2S = 40,000 ppm.)NotesJanuary 5, 2017September 25, 20179/25/2017 13:02:00 AMCH4 (%Vol.)CH4 (%LEL)CH4Limit (%LEL)H2S (ppm)H2S Limit (ppm)Location or LFG Well IDInstr. purgedTimeProbe Pressure (In-Wg)Time Pumped (sec.)