HomeMy WebLinkAbout0601_AveryCountyMSWLF_LFG_DIN28178_20161104
December 13, 2016
Ms. Jaclynne Drummond
NCDENR DWM Solid Waste Section
2090 U.S. 70 Highway
Swannanoa, North Carolina 28778-8211
RE: Operations, Monitoring, and Maintenance Report –Nov 2016
Avery County Closed MSW Landfill
Spruce Pine, North Carolina
Dear Ms. Drummond:
Smith Gardner, Inc. (S+G) is pleased to present this report concerning the operation and
maintenance (O&M) of the Avery County Closed MSW Landfill (Permit No. 06-01) Landfill Gas
Collection and Control System (LFGCCS). Monitoring of the on- and off-site landfill gas
probes was also performed. Mr. Frank Terry with B.E.L. performed the site visit on
November 4th, 2016. Site visit details are provided below.
LFG EXTRACTION WELL MONITORING PROGRAM
Monthly monitoring of the LFGCCS will continue and shall include the following items:
CH4, O2, CO2, and pressure monitoring at each extraction well head;
CH4, O2, CO2, and pressure monitoring at the flare station; and
Adjustment of the LFGCCS to balance recovery and ensure safe system operation.
The County will maintain this LFGCCS and will continue to evaluate the effectiveness of
increased LFG recovery from the waste mass in alleviating off-site LFG migration. Results
from monthly monitoring events will be reported in accordance with the approved LFG
Monitoring Plan.
LFG EXTRACTION WELL MONITORING ACTIVITIES
Mr. Terry performed the flare station and well field monitoring on November 4th, 2016. Initial
measurements indicated there was approximately 28 inches of available vacuum average
throughout the well field, ranging from approximately 31 to 37 inches of available vacuum at
each of the LFG wells across the well field. The results from this event are summarized
below. Recommended actions are underlined. Well field data and flare station data are
provided in the attached Table 1.
Ms. Drummond
December 13, 2016
Page 2 of 3
LFG Extraction Well Field
W-1 through W-10: S+G performed methane (CH4), oxygen (O2), carbon dioxide
(CO2), and pressure monitoring. Valves on extraction Wells W3 and W5 were
opened slightly (Approx. 1 turn).
Orifice Plates: S+G continues to evaluate orifice plate sizes at wells W5, W7, W9,
and W10 during each site visit. As LFG flow potential at these locations remains
stable, the correct orifice plate sizes are currently installed.
Flare Station
Condensate Tank: The condensate tank was observed during this site visit; the
liquid was at an acceptable level. S+G will continue to monitor the liquid level of
the condensate tank.
Filter Tank: The filter tank was observed during the November 2016 site visit and
the liquid level was found to be at an acceptable level. S+G will continue to
monitor the liquid level of the filter tank.
Flare operation: Due to low concentrations of methane measured at the flare
combustion was not observed. The spark generator was operational; however,
the flare was not able to be ignited prior to S+G leaving the site. S+G will continue
to adjust the system to optimize gas flow and quality.
LFG MONITORING WELL (PERIMETER) MONITORING PROGRAM
Mr. Terry performed monitoring of the perimeter LFG monitoring network during this event.
Monitoring wells exceeding the LEL include P-2, and P-7 which exhibited methane
concentrations of 18.1% and 7.1% respectively. Monitoring Well P-1 and P-3 exhibited 1.8%
and 4.2% respectively but did not exceed the LEL of 5%. The other wells, monitored during
this event, had no detectable concentrations of CH4. Results of this monitoring event are
included in Attachment 1. Attachment 2 provides a CH4 concentration graph over time for
monitoring wells that have historically had methane present. The current well network will
continue to be monitored and data will be reported to NCDEQ and the County.
CONCLUSIONS
The site has been generally characterized by a trend of consistently decreasing LFG
concentrations. Elevated methane concentrations have been observed in a few wells during
the past few monitoring events. These detections may be attributable to the extremely dry
conditions currently present. We will continue to monitor the CH4 concentrations at the site
monthly.
Ms. Drummond
December 13, 2016
Page 3 of 3
The next routine monitoring event is scheduled for early December 2016. If you have any
questions, or require additional information, please contact us at your earliest convenience
at 919-828-0577 or by e-mail (address below).
Sincerely,
SMITH GARDNER, INC.
Britt Ransom Madeline German, P.G.
Project Manager, ext. 301 Project Geologist ext. 222
britt@smithgardnerinc.com madeline@smithgardnerinc.com
Attachments
cc: Eric Foster – Avery County
Deb Aja – NCDEQ
file
H:\Projects\Avery County (NC)\Avery-15-1 (LFG Sys Ops)\2016 LFG Monitoring\11 November 2016\Avery Co MSW LFG Monitoring Rpt Nov 2016.docx
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Attachment 1
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NC Division of Waste Management - Solid Waste Section
Landfill Gas Monitoring Data Form
Notice: This form and any information attached to it are "Public Records" as defined in NC General Statute 132-1. As such, these documents are available for inspection and
examination by any person upon request (NC General Statute 132-6).
Facility Name: ______________________________________________ Permit Number: ____________________________
Date of Sampling: ___________________ NC Landfill Rule (.0500 or .1600): _____________________________________
Name and Position of Sample Collector: _________________________________________
Type and Serial Number of Gas Meter: _______________________________ Calibration Date of Gas Meter: ___________
Date and Time of Field Calibration: _____________________
Type of Field Calibration Gas (15/15 or 35/50): ____________ Expiration Date of Field Calibration Gas Canister: ________
Pump Rate of Gas Meter: _____________
Ambient Air Temperature: __________ Barometric Pressure: ______________ General Weather Conditions: _____________
Instructions: Under “Location or LFG Well” identify the monitoring wells or describe the location for other tests (e.g., inside buildings). A drawing showing the location of test
must be attached. Report methane readings in both % LEL and % methane by volume. A reading in percent methane by volume can be converted to % LEL as follows: % methane
by volume = % LEL/20
If your facility has more gas monitoring locations than there is room on this form, please attach additional sheets listing the same
information as contained on this form.
Certification To the best of my knowledge, the information reported and statements made on this data submittal and attachments are true and correct. I am aware that
there are significant penalties for making any false statement, representation, or certification including the possibility of a fine and imprisonment.
__________________________________ ________________________
SIGNATURE TITLE
.0500
Avery County Closed Landfill 06-01
11/4/16 .0500
Frank Terry, BEL
ENVISION 1510204 2/18/16
11/4/16 9:00AM
35/50 12/2018
0.5 L/min
57 30.21 Sunny
P-1 >60s 1225 >60s 36.0 36.0 1.8 19.6 1.2
P-2 >60s 1118 >60s 362.0 362.0 18.1 0.1 25.7
P-3 >60s 1000 >60s 84.0 84.0 4.2 16.9 4.2
P-4 >60s 1126 >60s 0.0 0.0 0.0 11.8 9.6
P-5 >60s 1130 >60s 0.0 0.0 0.0 19.2 3.0
P-6 >60s 1055 >60s 0.0 0.0 0.0 18.4 3.0
P-7 >60s 1045 >60s 142.0 142.0 7.1 3.9 1.3
P-8 >60s 1109 >60s 0.0 0.0 0.0 17.4 5.0
P-9 >60s 1142 >60s 0.0 0.0 0.0 20.5 0.2
P-10 >60s 1138 >60s 0.0 0.0 0.0 20.8 0.0
P-11 >60s 1149 >60s 0.0 0.0 0.0 17.4 2.4
P-12 >60s 1049 >60s 0.0 0.0 0.0 20.8 1.8
P-13 >60s 1159 >60s 0.0 0.0 0.0 20.9 0.0
Britton Ransom Digitally signed by Britton Ransom
DN: cn=Britton Ransom, o=S+G, ou=Columbia Office, email=britt@smithgardnerinc.com, c=US Date: 2016.11.29 13:01:35 -05'00'Project Manager, S+G
NC Division of Waste Management - Solid Waste Section
Landfill Gas Monitoring Data Form
Notice: This form and any information attached to it are "Public Records" as defined in NC General Statute 132-1. As such, these documents are available for inspection and
examination by any person upon request (NC General Statute 132-6).
Facility Name: ______________________________________________ Permit Number: ____________________________
Date of Sampling: ___________________ NC Landfill Rule (.0500 or .1600): _____________________________________
Name and Position of Sample Collector: _________________________________________
Type and Serial Number of Gas Meter: _______________________________ Calibration Date of Gas Meter: ___________
Date and Time of Field Calibration: _____________________
Type of Field Calibration Gas (15/15 or 35/50): ____________ Expiration Date of Field Calibration Gas Canister: ________
Pump Rate of Gas Meter: _____________
Ambient Air Temperature: __________ Barometric Pressure: ______________ General Weather Conditions: _____________
Instructions: Under “Location or LFG Well” identify the monitoring wells or describe the location for other tests (e.g., inside buildings). A drawing showing the location of test
must be attached. Report methane readings in both % LEL and % methane by volume. A reading in percent methane by volume can be converted to % LEL as follows: % methane
by volume = % LEL/20
If your facility has more gas monitoring locations than there is room on this form, please attach additional sheets listing the same
information as contained on this form.
Certification To the best of my knowledge, the information reported and statements made on this data submittal and attachments are true and correct. I am aware that
there are significant penalties for making any false statement, representation, or certification including the possibility of a fine and imprisonment.
__________________________________ ________________________
SIGNATURE TITLE
.0500
Avery County Closed Landfill 06-01
11/4/16 .0500
F.Terry, BEL Environmental
ENVISION 2/18/16
11/4/16 9:00 AM
15/15 12/2018
0.5 L/min
57 30.21 Sunny
Avery County Airport Structure #1
NE Corner >60s 1230 >60s 0 0 0 20.9 0
NW Corner >60s 1233 >60s 0 0 0 21.0 0
SE Corner >60s 1236 >60s 0 0 0 20.9 0
SW Corner >60s 1239 >60s 0 0 0 20.9 0
Avery County Airport Structure #2
NE Corner >60s 1245 >60s 0 0 0 20.9 0
NW Corner >60s 1248 >60s 0 0 0 20.9 0
SE Corner >60s 1251 >60s 0 0 0 20.9 0
SW Corner >60s 1254 >60s 0 0 0 20.9 0
Avery County Airport Structure #3
NE Corner >60s 1300 >60s 0 0 0 20.9 0
NW Corner >60s 1303 >60s 0 0 0 20.9 0
SE Corner >60s 1306 >60s 0 0 0 20.9 0
SW Corner >60s 1309 >60s 0 0 0 20.9 0
Avery County Airport Structure #4
NE Corner >60s 1312 >60s 0 0 0 20.9 0
NW Corner >60s 1315 >60s 0 0 0 20.9 0
SE Corner >60s 1318 >60s 0 0 0 20.9 0
SW Corner >60s 1321 >60s 0 0 0 20.9 0
Avery County Airport Structure #5
NE Corner >60s 1324 >60s 0 0 0 20.9 0
NW Corner >60s 1327 >60s 0 0 0 20.9 0
SE Corner >60s 1331 >60s 0 0 0 21.0 0
SW Corner >60s 1335 >60s 0 0 0 20.9 0
Britton Ransom Digitally signed by Britton Ransom
DN: cn=Britton Ransom, o=S+G, ou=Columbia Office, email=britt@smithgardnerinc.com, c=US Date: 2016.11.29 12:39:49 -05'00'Field Service Mgr, S+G
NC Division of Waste Management - Solid Waste Section
Landfill Gas Monitoring Data Form
Notice: This form and any information attached to it are "Public Records" as defined in NC General Statute 132-1. As such, these documents are available for inspection and
examination by any person upon request (NC General Statute 132-6).
Facility Name: ______________________________________________ Permit Number: ____________________________
Date of Sampling: ___________________ NC Landfill Rule (.0500 or .1600): _____________________________________
Name and Position of Sample Collector: _________________________________________
Type and Serial Number of Gas Meter: _______________________________ Calibration Date of Gas Meter: ___________
Date and Time of Field Calibration: _____________________
Type of Field Calibration Gas (15/15 or 35/50): ____________ Expiration Date of Field Calibration Gas Canister: ________
Pump Rate of Gas Meter: _____________
Ambient Air Temperature: __________ Barometric Pressure: ______________ General Weather Conditions: _____________
Instructions: Under “Location or LFG Well” identify the monitoring wells or describe the location for other tests (e.g., inside buildings). A drawing showing the location of test
must be attached. Report methane readings in both % LEL and % methane by volume. A reading in percent methane by volume can be converted to % LEL as follows: % methane
by volume = % LEL/20
If your facility has more gas monitoring locations than there is room on this form, please attach additional sheets listing the same
information as contained on this form.
Certification To the best of my knowledge, the information reported and statements made on this data submittal and attachments are true and correct. I am aware that
there are significant penalties for making any false statement, representation, or certification including the possibility of a fine and imprisonment.
__________________________________ ________________________
SIGNATURE TITLE
.0500
Avery County Closed Landfill 06-01
11/4/16 .0500
F.Terry, BEL Environmental
ENVISION 2/18/16
11/4/16 9:00 AM
15/15 12/2018
0.5 L/min
57 30.21 Sunny
Field Service Mgr, S+G
Avery County Airport Structure #6
NE Corner >60s 1338 >60s 0 0 0 20.9 0
NW Corner >60s 1341 >60s 0 0 0 20.9 0
SE Corner >60s 1344 >60s 0 0 0 20.9 0
SW Corner >60s 1347 >60s 0 0 0 20.9 0
Attachment 2
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By:DMM
Updated by:BPR
Date:11/29/2016
Methane Concetrations Between May 2011 and October 2016
Landfill Gas Monitoring Well Network
Avery County MSW Landfill
0
10
20
30
40
50
60
70
80
Ma
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b
-
1
4
Ma
r
-
1
4
Ap
r
-
1
4
Ma
y
-
1
4
Ju
n
-
1
4
Ju
l
-
1
4
Au
g
-
1
4
Se
p
-
1
4
Oc
t
-
1
4
No
v
-
1
4
De
c
-
1
4
Ja
n
-
1
5
Fe
b
-
1
5
Ma
r
-
1
5
Ap
r
-
1
5
Ma
y
-
1
5
Ju
n
-
1
5
Ju
l
-
1
5
Au
g
-
1
5
Se
p
-
1
5
Oc
t
-
1
5
No
v
-
1
5
De
c
-
1
5
Ja
n
-
1
6
Fe
b
-
1
6
Ma
r
-
1
6
Ap
r
-
1
6
Ma
y
-
1
6
Ju
n
-
1
6
Ju
l
-
1
6
Au
g
-
1
6
Se
p
-
1
6
Oc
t
-
1
6
No
v
-
1
6
P1
P3
P7
P11
P12
P13
P2
Well
% CH4 by
Installation of W9 and W10
(April 30, 2013) Installation of W9/P3
Connection
(September 11, 2014
Installation of P7/W8
and P1/W10 Connection (September 3, 2015)