SW_F_0601-MSWLF-1987_07-22-2015_RM_LFG_3.pdf

July 14, 2015

Ms. Jaclynne Drummond
NCDENR DWM Solid Waste Section
2090 U.S. 70 Highway
Swannanoa, North Carolina 28778-8211

RE: Operations, Monitoring, and Maintenance Report – April 2015
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) and monitoring of the on- and off-site landfill gas
probes for the April 2015 monitoring period. Mr. Don Misenheimer with S+G performed the
site visit on April 29, 2015. Site visit details are provided below.

CURRENT STATUS

S+G previously identified the following items to be addressed for the LFGCCS to operate as
designed:

1. LFGCCS System: An expansion of the LFGCCS system, as proposed in the Annual
Landfill Gas Monitoring Report1, was previously approved2 by the division of Waste
Management. Phase One of the expansion project has been completed. S+G is
reviewing the data collected to evaluate the improvements for effectiveness. A
summary of this evaluation has been submitted to the division under separate cover
including recommendations for additional work.

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.

1 Annual Landfill Gas Monitoring Report, Closed Avery County MSW Landfill. Submitted by Smith Gardner, Inc., November 2012.
2 Approval response letter, Closed Avery County MSW Landfill (Annual Landfill Gas Monitoring Report). Sent by Jaclynne
Drummond, Solid Waste Section, November 15, 2012.
Ms. Drummond
July 14, 2015
Page 2 of 3
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

S+G personnel performed repairs the flare station consisting of the permanent repair and
replacement of a broken liquid level view port at the filter tank. This condition was the
source of vacuum loss at across the wellfield during the March 2015 event. The repairs were
completed and the system was operational when S+G let the site. 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.

LFG Extraction Well Field

 W-1 through W-10: S+G performed methane (CH4), oxygen (O2), carbon dioxide
(CO2), and pressure monitoring. No adjustments were made to the extraction well
heads during this monitoring event.

 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 May 2015site visit and the
liquid level view port was found to be broken allowing for vacuum loss across the
system. This condition was permanently repaired as a view port will be installed
during this April 2015 event. Proper vacuum was restored to the well field before
S+G left the site.

 Flare operation: The flare was off when S+G arrived on-site, however the spark
was working. The flare was able to be ignited subsequent to the repair of the
broken view port at the filter tank. S+G will continue to adjust the system to
optimize gas flow and quality.

Ms. Dr
July 14
Page 3
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ATTACHMENT 1
THIS PAGE INTENTIONALLY LEFT BLANK
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
rmation as contained on thiiissssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssss form.
fication To the best of my knowowowwowowwwowooowwwowooowwwwooowwwooooowooooooooooooowwwooowwoooowwooooooowwowwoowoooowwwledllllllllllllllllge, the information r
are significcccccccccccccccccant penaltieeeeeeeeeeeeeeees fssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssor rrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrororrorroor makmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmming any false statemen
________________________________________________________________________
GNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNATURE
Avery County Closed Landfill 06-01
4/29/15 .0500
Don Misenheimer, S+G
GEM2000 / GM07002HP 11/17/2014
4/29/15 8:00AM
15/15 9/7/2017
0.5 L/min
80 27.07 in Hg P. Cloudy
P-1 > 60 s 9:14 > 60 s >100 >100 35.1 4.7 17.8
P-2 > 60 s 9:17 > 60 s 0 0 0 20.3 1.9
P-3 > 60 s 9:22 > 60 s 0 0 0 20.8 0.4
P-4 > 60 s 9:26 > 60 s 0 0 0 19.8 1.7
P-5 > 60 s 9:04 > 60 s 0 0 0 19.9 1.4
P-6 > 60 s 8:33 > 60 s 0 0 0 19.1 2.2
P-7 > 60 s 8:28 > 60 s >100 >100 26.5 2.6 11
P-8 > 60 s 8:22 > 60 s 0 0 0 20.5 0.8
P-9 > 60 s 9:56 > 60 s 0 0 0 19.9 0.5
P-10 > 60 s 9:59 > 60 s 0 0 0 13.9 5.1
P-11 > 60 s 9:53 > 60 s 0 0 0 20.8 0.1
P-12 > 60 s 8:25 > 60 s 0 0 0 20.7 0.6
P-13 > 60 s 10:06 > 60 s 0 0 0 6.5 8.1
Project Scientist, 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
rmation as contained on thiiiiiiiiiiiiiiihiiiiiiiiiiiiiiiiiiiiiiiiiiihhiiiiiiiihhiissssssssssssssssssssssssssssssss form.
ification To the best of my knownoonowownowowowooowwwooonowwwwwoowowonoownoonnowwnnoowwnnoownnonnnwnnnowwnnnnnwwnnnnwwnnnnnwwledge, the information
e are significiccccccciicccciiicccciiiiiccccant penaltieeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeieeeeeieeeeeeeeieieeeeeeeiiieeeeees fsssssssssssssssssssssssfor oooroor roooooooooooooooooooooooooooooooooooooooooooo makmmmmmmmmmmmmmmmmmmmmming any false stateme
_____________________________________________________________________
GNGNNGNNNNNGNNNNNNNGGNGNNNNNNNGNGNNNNNNGGNGNNNNGGNGNNNNNNGGNNNNGGNGNNGNGNATUREEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEE
Avery County Closed Landfill 06-01
4/29/2015 .0500
Don Misenheimer, S+G
GEM2000 / GM07002HP 11/17/2014
4/29/15 8:00 am
15/15 9/7/2017
0.5 L/min
80 27.07 in Hg P. Cloudy
Avery County Airport Structure #1
NE Corner >60s 14:20 >60s 0 0 0 20.9 0
NW Corner >60s 14:22 >60s 0 0 0 20.8 0
SE Corner >60s 14:24 >60s 0 0 0 20.9 0
SW Corner >60s 14:26 >60s 0 0 0 20.9 0
Avery County Airport Structure #2
NE Corner >60s 14:28 >60s 0 0 0 20.9 0
NW Corner >60s 14:30 >60s 0 0 0 20.9 0
SE Corner >60s 14:32 >60s 0 0 0 20.9 0
SW Corner >60s 14:34 >60s 0 0 0 20.9 0
Avery County Airport Structure #3
NE Corner >60s 14:36 >60s 0 0 0 20.9 0
NW Corner >60s 14:38 >60s 0 0 0 20.9 0
SE Corner >60s 14:40 >60s 0 0 0 20.9 0
SW Corner >60s 14:42 >60s 0 0 0 21.0 0
Avery County Airport Structure #4
NE Corner >60s 14:44 >60s 0 0 0 20.9 0
NW Corner >60s 14:46 >60s 0 0 0 20.9 0
SE Corner >60s 14:48 >60s 0 0 0 21.0 0
SW Corner >60s 14:50 >60s 0 0 0 20.9 0
Avery County Airport Structure #5
NE Corner >60s 14:52 >60s 0 0 0 20.9 0
NW Corner >60s 14:54 >60s 0 0 0 20.9 0
SE Corner >60s 14:56 >60s 0 0 0 20.9 0
SW Corner >60s 14:58 >60s 0 0 0 20.9 0
Project Scientist, 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
mation as contained on thiiiiiiiissssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssss form.
fication To the best of my knowowowowwwooowowwowowowwoooowwowooowoowwwoooowwowwoooowwwooooowwwwoooowwoooowwooooowwooowwowoowoowledllllllllllllllllllge, the information r
are significcccccccccccccccccccccccccccccccccccccantaaaaaaaaaaaaaaaaaaaaaaaaaaaaa penaltieeeeeeeeeeeeeeeees fsssfs sfssss s ss sssssssssssssssssssss sssssssssssssssssssssssssssssssssssssssssssssss or orrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrror makmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmming any false statemen
_________________________________________________________________________
NNNNNNNNNNNNNNNNNNNNNATURE
Avery County Closed Landfill 06-01
4/29/2015 .0500
Don Misenheimer, S+G
GEM2000 / GM07002HP 11/17/2014
4/29/15 8:00 am
15/15 9/7/2017
0.5 L/min
80 27.07 in Hg P. Cloudy
Project Scientist, S+G
Avery County Airport Structure #6
NE Corner >60s 15:00 >60s 0 0 0 20.9 0
NW Corner >60s 15:02 >60s 0 0 0 20.9 0
SE Corner >60s 15:04 >60s 0 0020.9 0
SW Corner >60s 15:06 >60s 0 0 0 20.9 0
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