5502_LincolnCoOwlsDen_GWMR_DIN27931_20160414

April 2016 Semi-Annual Monitoring Report
Owl’s Den Landfill
Lincolnton, North Carolina
S&ME Project No. 1356-07-006
Prepared for:
Lincoln County
5291 Crouse Road
Crouse, North Carolina 28033
Prepared by:
S&ME, Inc.
9751 Southern Pine Boulevard
Charlotte, NC 28273
July 18, 2016
S&ME, Inc. | 9751 Southern Pine Boulevard | Charlotte, NC 28273 | p 704.523.4726 | f 704.525.3953 | www.smeinc.com
July 18, 2016
Lincoln County
5291 Crouse Road
Crouse, North Carolina 28033
Attention:Mr. Mark Bivins
Reference:April 2016 Semi-Annual Monitoring Report
Owl’s Den Landfill
Lincolnton, North Carolina
S&ME Project No. 1356-07-006
Dear Mr. Bivins:
S&ME Inc. (S&ME) has completed the April 2016 Semi-Annual Monitoring and Reporting for the Owl’s
Den Landfill. This report presents the results of the second monitoring event of the year for the facility.
S&ME appreciates the continued opportunity to provide services to you and Lincoln County. If you have
any questions or need additional information regarding this report, please contact us at [phone].
Sincerely,
S&ME, Inc.
Amanda Bloom Edmund Q.B. Henriques, L.G.
Staff Professional Project Manager/Senior Geologist
NC Engineering License No. F-0176
NC Geology License No. C-145
Cc: Jaclynne Drummond, NCDEQ – Solid Waste Section
April 2016 Semi-Annual Monitoring Report
Owl’s Den Landfill
Lincolnton, North Carolina
S&ME Project No. 1356-07-006
July 18, 2016 ii
Table of Contents
1.0 Introduction............................................................................................................1
2.0 Groundwater Levels and Flow............................................................................1
3.0 Analytical Data ......................................................................................................2
3.1 Monitoring Well Sampling..............................................................................................2
3.1.1.Volatile Organic Compounds (VOCs)...........................................................................2
3.1.2.Inorganic Constituents (Metals).....................................................................................3
3.2.Surface Water Sampling..................................................................................................3
3.2.1.Volatile Organic Compounds (VOCs)...........................................................................3
3.2.2.Inorganic Constituents (Metals).....................................................................................3
4.Methane Readings.................................................................................................4
Appendices
Appendix I – Drawings
Appendix II –Tables
Appendix III – Well Sampling Logs and Laboratory Reports
April 2016 Semi-Annual Monitoring Report
Owl’s Den Landfill
Lincolnton, North Carolina
S&ME Project No. 1356-07-006
July 18, 2016 1
1.0 Introduction
S&ME, Inc. (S&ME) was contracted by Lincoln County to provide groundwater, surface water, and water
supply well monitoring services at the Owl’s Den Landfill (the Site) located off Owl’s Den Road in
Lincolnton, North Carolina. This semi-annual monitoring event was conducted on April 4th and 5th, 2016.
This report presents the results of the first semi-annual sampling event for the year 2016 at the facility,
which included the sampling of one background well (MW-1), ten compliance wells (MW-2, MW-4, MW-5,
MW-6, MW-6A, MW-7, MW-7A, MW-8, MW-9, and MW-10), and three surface water locations (SW-1,
SW-2 and SW-3).
Surface water location SW-1 represents the background surface water sample for the Site.
Please note that compliance well MW-3 has been removed from the Site’s monitoring plan due to
expansion of the property boundary currently monitored by compliance wells MW-8 and MW-9.
Compliance monitoring well MW-3 remains on-site for water level measurement purposes.
Lincoln County personnel collect monthly landfill gas readings at seven methane monitoring wells (MMW-
2, MMW-4, MMW-5, MMW-6, MMW-7, MMW-8, and MMW-9). Please note that methane monitoring
wells MMW-1 and MMW-3 have been removed from the Site’s monitoring plan. MMW-1 was replaced
with MMW-7, and MMW-3 was replaced with MMW-5 and MMW-6. This report includes the results (both
current and historical) of the Site’s landfill gas monitoring.
The next sampling event is scheduled for October 2016.
2.0 Groundwater Levels and Flow
The water table elevations and our interpretation of the groundwater surface expressed as a
potentiometric map along with groundwater flow direction are shown in Appendix I. Based upon the
groundwater elevations in the vicinity of the landfill, groundwater in this area is projected to flow north-
northwest toward the drainage features bordering the site on the west, north and east of the property.
Groundwater levels obtained during the April 2016 monitoring event, as well as monitoring well
construction data, are presented in Appendix II.
The hydraulic gradient (i) in the vicinity of each well was determined by calculating the vertical difference
between the groundwater elevation at each well and one or more nearby contour lines from the
Groundwater Elevation Map. This value was then divided by the distance measured from the well to the
selected groundwater elevation contour line. Groundwater velocity was calculated by multiplying the
gradient (i) by the hydraulic conductivity (k) and dividing by the estimated effective porosity (ne) of the
aquifer.Table 2 summarizes the groundwater flow velocities for the monitoring wells.
April 2016 Semi-Annual Monitoring Report
Owl’s Den Landfill
Lincolnton, North Carolina
S&ME Project No. 1356-07-006
July 18, 2016 2
3.0 Analytical Data
Analytical results for the landfill monitoring wells and surface water locations are summarized in Tables 4
and 5. Field measurements of pH, conductivity, and temperature are summarized in Table 3. Well
sampling logs containing field measurements of pH, conductivity, temperature, and water levels are
included in Appendix III. The monitoring wells, surface water locations, and private supply wells were
sampled for volatile organics by EPA Method 8260B and for RCRA metals.
3.1 Monitoring Well Sampling
3.1.1.Volatile Organic Compounds (VOCs)
The following provides a brief summary of the volatile organic compound, groundwater analytical results
for this monitoring event.
♦No volatile organic compounds (VOCs) were detected in the background monitoring well, MW-1,
or monitoring wells MW-5 and MW-10.
♦Eleven VOCs were detected in monitoring well MW-2; however, only Benzene was detected at a
level at or greater than its respective NCAC 2L .0202 Groundwater Quality Standard (2L Standard)
and/or respective North Carolina Department of Environmental Quality - Solid Waste Section -
Groundwater Protection Standard (SW GWP Standard).
♦Nine VOCs were detected in monitoring well MW-4; however, only Benzene was detected at a
level at or greater than its respective 2L Standard and/or respective SW GWP Standard.
♦One VOC, chlorobenzene was detected in monitoring well MW-6, and the concentration was less
than its respective 2L Standard and/or respective SW GWP Standard.
♦Four VOCs were detected in monitoring well MW-6A, none of which were detected at or greater
than their respective 2L Standard and/or respective SW GWP Standard.
♦Seven VOCs were detected in monitoring well MW-7; however, only Benzene was detected at a
level at or greater than its respective 2L Standard and/or respective SW GWP Standard.
♦Six VOCs were detected in monitoring well MW-7A, none of which were detected at or greater
than their respective 2L Standard and/or respective SW GWP Standard.
♦Three VOCs were detected in monitoring well MW-8, none of which were detected at or greater
than their respective 2L Standard and/or respective SW GWP Standard.
♦One VOC,Tetrachloroethene, was detected in monitoring well MW-9 at a concentration greater
than its respective 2L Standard and/or respective SW GWP Standard.
It is believed that the cause of the apparent 2L Standard or respective GWP Standard exceedances at
monitoring wells MW-2, MW-4, and MW- 7 listed above is likely from percolation of landfill constituents
from the waste management unit into the uppermost groundwater aquifer. These wells are located less
than 100 feet from the limit of waste and between the limits of waste and the compliance boundary.
Based on the observed local water table elevations and our interpretation of the groundwater surface
gradients, the apparent exceedance of the 2L Standard for Tetrachloroethene at monitoring well MW-9
could stem from an off-site source.
April 2016 Semi-Annual Monitoring Report
Owl’s Den Landfill
Lincolnton, North Carolina
S&ME Project No. 1356-07-006
July 18, 2016 3
3.1.2.Inorganic Constituents (Metals)
The following provides a brief summary of the inorganic constituent, groundwater analytical results for
this monitoring event.
♦Barium was detected in all eleven monitoring wells, including the background monitoring well
MW-1. Barium was detected at concentrations of 820 and 959 micrograms per liter (µg/L) in
monitoring wells MW-2 and MW-4, respectively, which is greater than its 2L Standard of 700 µg/L.
♦Cadmium was detected in monitoring wells MW-2, MW-7, and MW-7A. Cadmium was detected
concentrations greater than its 2L Standard of 2 µg/L in monitoring wells MW-2 and MW-7 at
concentrations of 2.09 and 4.15 µg/L, respectively.
♦Chromium was detected in monitoring wells MW-2, MW-7, and MW-10. Each detected
concentrations was less than its 2L Standard of 10 µg/L.
♦Mercury was detected in monitoring well MW-9 at a concentration of 9.81 µg/L, which is greater
than its 2L Standard of 1 µg/L.
♦Selenium was detected in monitoring well MW-6A at a concentration of 8.92 J µg/L, which is less
than its 2L Standard of 20 µg/L.
Please note that many can metals occur naturally in groundwater; consequently, 15A NCAC 2L contains a
provision to exempt naturally occurring metal concentrations. The concentrations of metals in the shallow
aquifer monitoring wells fluctuate with time and may be due to suspended solids rather than actual
dissolved metals. Accordingly, a concentration greater than the 2L Standards may or may not represent a
confirmed exceedance of these groundwater standards.
No other metals were detected in the monitoring wells.
3.2.Surface Water Sampling
3.2.1.Volatile Organic Compounds (VOCs)
The following provides a brief summary of the surface water analytical results for this monitoring event
♦The volatile organic compound 1,1-Dichloroethane was detected at surface water sampling
location SW-3 at a concentration of 0.50 J µg/L. The NCAC 2B Water Supply criterion for 1,1-
Dichoroethane is 6.0 µg/L.
♦The volatile organic compound Chlorobenzene was detected at surface water sampling location
SW-3 at a concentration of 0.62 J μg/L. The NCAC 2B Freshwater Standard for Chlorobenzene is
140 µg/L.
♦The volatile organic compound cis-1,2-Dichloroethene was detected at surface water sampling
locations SW-2 and SW-3 at concentrations of 0.84 J and 0.48 J µg/L respectively. The NCAC 2B
Water Supply criterion for cis-1,2-Dichloroethene is 60 µg/L.
3.2.2.Inorganic Constituents (Metals)
Barium was detected at surface water sampling locations SW-1, SW-2 and SW-3 at concentrations of 66.6,
179, and 281 μg/L, respectively. The NCAC 2B Freshwater Standard established for Barium is 1,000 μg/L.
No other metals were detected in the surface water samples.
April 2016 Semi-Annual Monitoring Report
Owl’s Den Landfill
Lincolnton, North Carolina
S&ME Project No. 1356-07-006
July 18, 2016 4
4.Methane Readings
Methane readings from the seven (7) methane monitoring wells on site (MMW-2, MMW-4, MMW-5,
MMW-6, MMW-7, MMW-8, and MMW-9) are measured monthly by Lincoln County personnel using a
GEM 2000 gas meter.Table 6 and its corresponding charts summarize the current and historical data
collected.
Appendices
Appendix I - Drawings
#*
#*
#*
#*
#*
#*#*
#*
#*
<
<
<
<
<
<<
<<
<
<
<MW-10(825.7)
MW-9(835.24)
MW-8(837.61)
MW-7(796.04)
MW-6(792.58)
MW-5(813.54)
MW-4(794.87)
MW-3(833.49)
MW-2(800.28)
MW-1(833.03)
MW-7A(796.58)
MW-6A(790.76)
MMW-9
MMW-8
MMW-7MMW-6
MMW-5
MMW-4
MMW-3
MMW-2
MMW-1
R
O
C
K

D
A
M

R
D O W L S D E N R DF
U
L
T
O
N

T
R
ELLYS ST
810
815820
805
800
825
795
830
835
G R O U N D W A T E R E L E V A T I O N M A P
A P R I L 2 0 1 6
O W L S D E N L A N D F I L L
L I N C O L N T O N , N O R T H C A R O L I N A
1
1 3 5 6 -0 7 -0 0 6
1 " = 3 0 0 '
B T R
J U L Y 2 0 1 6
FIGURE NO.
S C A L E :
P R O J E C T N O :
D A T E :
D R A W N B Y :
C H E C K E D B Y :
W W W .S M E I N C .C O M
´
0 300 600150Feet Q :\P R O J E C T S \2 0 0 7 \1 3 5 6 -0 7 -0 0 6 \A P R I L -2 0 1 6 .m x d
Legend
<GROUNDWATER MONITORING WELL
#*METHANE MONITORING WELL
GROUNDWATER SURFACE CONTOUR - APRIL 2016
PROPERTY BOUNDARY
SURFACE WATER FEATURES
IMAGE SOURCE: NC ONEMAP, DATED 2015ROAD NAMES: LINCOLN COUNTY GIS, DATED 2015PROPERTY BOUNDARY FROM SURVEY BY ORIGIN LAND SURVEYING, DATED AUG 2008.
Appendix II - Tables
Latitude Longitude Ground TOC DTW - TOC GW ELEV
(MM/DD/YY)(ft)(ft - MSL)
MW-1 09/28/00 35.4845710°-081.3075490°863.20 865.69 0.0 to 30.0 30.0 to 45.0 0.0 to 26.0 26.0 to 28.0 Bentonite 28.0 to 45.0 SAP 32.66 833.03
MW-2 10/03/00 35.4874879°-081.3094713°822.50 824.96 0.0 to 23.0 23.0 to 38.0 0.0 to 19.0 19.0 to 21.0 Bentonite 21.0 to 38.0 PWR 24.68 800.28
MW-3 09/26/00 35.4846148°-081.3089804°870.20 872.60 0.0 to 33.0 33.0 to 48.0 0.0 to 28.5 28.5 to 30.5 Bentonite 30.5 to 48.0 PWR 39.11 833.49
MW-4 10/02/00 35.4874987°-081.3125120°831.80 833.90 0.0 to 40.0 40.0 to 55.0 0.0 to 36.0 36.0 to 38.0 Bentonite 38.0 to 55.0 PWR 39.03 794.87
MW-5 08/05/01 35.4857775°-081.3140465°835.90 839.10 0.0 to 15.0 15.0 to 30.0 0.0 to 10.5 10.5 to 13.0 Bentonite 13.0 to 30.0 SAP 25.56 813.54
MW-6 07/24/01 35.4877917°-081.3128338°805.44 808.55 0.0 to 6.0 6.0 to 21.0 0.0 to 3.0 3.0 to 5.0 Bentonite 5.0 to 21.0 PWR 15.97 792.58
MW-6A*07/18/01 35.4877917°-081.3128338°805.17 808.61 0.0 to 44.5 45.0 to 55.0 0.0 to 41.5 41.5 to 45.0
Bentonite
and K-Packer
ROCK 17.85 790.76
MW-7 07/24/01 35.4876205°-081.3095665°815.47 818.44 0.0 to 10.0 10.0 to 25.0 0.0 to 6.0 6.0 to 8.0 Bentonite 8.0 to 25.0 PWR 22.40 796.04
MW-7A**07/24/01 35.4876205°-081.3095665°814.68 817.48 0.0 to 41.0 41.5 to 51.5 0.0 to 39.0 39.0 to 41.5
Bentonite
and K-Packer
ROCK 20.90 796.58
MW-8 07/14/08 35.4843606°-081.3094687°878.23 881.21 3.0 to 39.0 39.0 to 54.0 0.0 to 34.5 34.5 to 36.5 Bentonite 36.5 to 54.0 SAP 43.60 837.61
MW-9 07/08/08 35.4841556°-081.3084430°882.19 884.94 2.8 to 45.0 45.0 to 60.0 0.0 to 36.0 36.0 to 39.5 Bentonite 39.5 to 60.0 SAP 49.70 835.24
MW-10 07/10/08 35.4853675°-081.3073758°864.33 867.11 2.8 to 33.0 33.0 to 48.0 0.0 to 29.0 29.0 to 31.3 Bentonite 31.3 to 48.0 SAP 41.41 825.70
Notes:
(ft-MSL)Feet Mean Sea Level
(ft-bls)Feet Below Land Surface
TOC Top of Casing
Ground Ground Surface
DRY No water in well at time of sampling
NS Well was not sampled
N/A Not Applicable
DTW Depth to Water
GW ELEV.Groundwater Elevation
#2 Filter Sand Medium to Fine Grained Silica Sand
Bentonite Bentonite Pellets
Sch. 40 Schedule 40 Pipe
0.010 Slot 0.010-Inch Machine-Slotted Pipe
Neat Cement Cement Mixture without Bentonite
SAP Saprolite
PWR Partially Weathered Rock
ROCK Bedrock
- - -Not Available
April 2016Geology in
Screen
Interval
Filter Pack
Interval
(ft-bls)
2-inch, SCH. 40, PVC
Screen Interval Grout Interval
2-inch, 0.010 Slot, PVC Neatr Cement
(decimal degrees)(ft-MSL)(ft-bls)
BentoniteInstall Date
GPS Coordinates Survey Elevations Casing Interval
(ft-bls)(ft-bls)
None
None
Table 1
Well Construction Summary and Water Level Data
Owl's Den Landfill
S&ME Project No: 1356-07-006
Well ID
Seal Interval
(ft-bls)
K n I v
Well Hydraulic Cond. Eff. Porosity Gradient Flow Velocity
ID (ft/day)(ne)(ft/ft)(ft/yr)
MW-1 4.3E+02 0.20 0.03 65
MW-2 2.6E+03 0.28 0.03 283
MW-3 9.8E+02 0.33 0.03 89
MW-4 1.3E+03 0.30 0.04 166
MW-5 6.2E+02 0.27 0.03 69
MW-6 4.2E+02 0.29 0.02 25
MW-7 2.1E+02 0.30 0.08 56
MW-8 5.6E+02 0.28 0.04 80
MW-9 1.3E+03 0.31 0.01 43
MW-10 9.5E+02 0.31 0.04 123
Notes:
(1) Hydraulic Conductivity was calculated from slug tests performed after well construction.
(2) Effective porosity was estimated from soils collected within the saturated portion of screen
interval during well construction.
(3) Hydraulic gradient calculated by measuring linear feet between selected contour intervals.
(4) Seepage velocity v = (K*i)/ne
- - -Not Available
Table 2
Groundwater Flow Data
Owl's Den Landfill
S&ME Project No: 1356-07-006
April 2016
Well ID
DTW TOC
(ft-bls)pH Temp (°C)
Conductance
(μS)
MW-1 32.66 5.15 16.1 33
MW-2 24.68 6.37 17.2 843
MW-3 39.11
MW-4 39.03 6.7 17.1 1422
MW-5 25.56 5.93 14.7 85
MW-6 15.97 5.39 14.2 86
MW-6A 17.85 6.83 15.5 869
MW-7 22.40 6.51 16.8 729
MW-7A 20.90 6.65 16.9 425
MW-8 43.60 6.1 14.3 142
MW-9 49.70 5.97 15.8 122
MW-10 41.41 5.73 15.9 38
Notes:
°C degrees celcius
μS micro siemems
Table 3
April 2016 - Field Parameters in Monitoring Wells
Lincoln County Owl's Den Landfill
S&ME Project No. 1356-07-006
EPA Volatile Organic
Compounds Method
8260B (ug/L)
NCDEQ
SWSL
15A
NCAC
2L
Soild
Waste
GWP ST
MW-1 MW-2 MW-3 MW-4 MW-5 MW-6 MW-6A MW-7 MW-7A MW-8 MW-9 MW-10
1,1- Dichloroethane 5 6 NE 1.5 1.2 0.51 J
1,2-Dichlorobenzene 5 20 NE 1.0 0.85 J 1.6 0.45 J
1,2-Dichloropropane 1 0.6 NE 0.59 J
1,2,4-Trichlorobenzene 10 70 70 0.45 J 1.9
1,2-Dichloropropane 0.59 J
1,4-Dichlorobenzene 1 6 NE 5.6 3.3 4.6 5.1 3.2 0.46 J
2-Chlorotoluene NE 100 NE 2.9 3.0 1.0 1.4
Acetone 100 6000 NE 5.1 77
Benzene 1 1 NE 1.3 2.1 1.0 0.42 J
Chlorobenzene 3 50 NE 6.2 10 1.6 7.1 3.6 2.4
cis-1,2-Dichloroethene 5 70 NE 2.2 0.62 J 3.2
Isopropylbenzene NE 70 NE 0.63 J
Methyl-tert-Butyl Ether NE 20 NE 1.6 0.62 J
Naphthalene 10 6 NE 0.72 J
Tetrachloroethene 1 0.7 NE 1.1
Trichloroethene 1 3 NE 1.3
EPA RCRA Metals Method
6010B (ug/L)
NCDEQ
SWSL
15A
NCAC
2L
Soild
Waste
GWP ST
MW-1 MW-2 MW-3 MW-4 MW-5 MW-6 MW-6A MW-7 MW-7A MW-8 MW-9 MW-10
Barium 100 700 NE 115 820 959 93.9 96.8 640 579 392 152 230 101
Cadmium 1 2 NE 2.09 4.15 0.397 J
Chromium 10 10 NE 2.36 J 1.82 J 1.73 J
Mercury 0.2 1 NE 9.81
Selenium 10 20 NE 8.92 J
Notes:
(1) ug/L = micrograms per liter (parts per billion)
(2) mg/L = milligrams per liter (parts per million)
(3) μS = microSiemens
(4) 15A NCAC 2L = North Carolina Groundwater Quality Standards
(5) 15A NCAC 2B = North Carolina Surface Water Quality Standards
S&ME Project No. 1356-07-006
April 2016 - Detected Analytes in Groundwater Monitoring Wells
Table 4
Lincoln County Owl's Den Landfill
Lincolnton, North Carolina
O M I T T E D
F R O M
G R O U N D W A T E R
M O N I T O R I N G
P L A N
I N
2 0 0 8
EPA Volatile Organic
Compounds Method 8260B
(ug/L)
15A NCAC
2B SW-1 SW-2 SW-3
1,1- Dichloroethane 6 0.50 J
Chlorobenzene 140 0.62 J
cis-1,2-Dichloroethene 60 0.84 J 0.48 J
EPA RCRA Metals Method
6010B (ug/L)
Barium 1,000 66.6 179 281
Notes:
(1) ug/L = micrograms per liter (parts per billion)
(3) NE = No established standard
(4) Bold indicates above 15A NCAC 2B
(6) Target analytes not shown were reported as below detection limits
(5) J = Analyte was detected between the method detection limit (MDL) and the
method reporting limit (MRL)
Table 5
April 2016 - Detected Analytes in Surface Water Samples
Lincoln County Owl's Den Landfill
Lincolnton, North Carolina
S&ME Project No. 1356-07-006
(2) 15A NCAC 2B = North Carolina Surface Water Quality Standards, most stringent
of Freshwater, Human Health, and Water Supply
Table 6 - Methane Gas Measurements
Data Tracking
Owl's Den Landfill (Permit #55-02)
MMW-1 MMW-2 MMW-3 MMW-4 MMW-5 MMW-6 MMW-7 MMW-8 MMW-9
Apr-03 0 35 0 62 N/A N/A N/A N/A N/A
Oct-03 63 38 31 56 N/A N/A N/A N/A N/A
Apr-04 0 10 0 0 N/A N/A N/A N/A N/A
Oct-04 0 8 10 38 N/A N/A N/A N/A N/A
Apr-05 5 30 44 68 N/A N/A N/A N/A N/A
Oct-05 36 30 18 58 N/A N/A N/A N/A N/A
Apr-06 30 36 0 0 N/A N/A N/A N/A N/A
Oct-06 38 38 0 58 N/A N/A N/A N/A N/A
Apr-07 100 100 20 100 N/A N/A N/A N/A N/A
Oct-07 6 12 20 55 N/A N/A N/A N/A N/A
Apr-08 0.8 20 0 0 N/A N/A N/A N/A N/A
Jul-08 14.4 42 73 0.2 10.6 0 0 0 0
Oct-08 0 15.4 36 12.6 6.2 3.1 0 0 0
Apr-09 8.5 20.6 46 0 6.6 0.2 0 0 0
Oct-09 16.5 17.7 59.3 61.3 4.2 0 0 0 0
Apr-10 N/A 27 N/A 0.2 8.5 0 0 0 0
Jun-10 N/A 27.6 N/A 68.4 9.9 1.5 0 0 0
Jul-10 N/A 19.6 N/A 66.9 9.4 1.7 0 0 0
Aug-10 N/A 13.8 N/A 48.4 6 0 0 0 0
Sep-10 N/A 13 N/A 0 5.3 0 0 0 0
Oct-10 N/A 10.7 N/A 58.5 4.3 0 0 0 0
Nov-10 N/A 10 N/A 6.8 4.1 0 0 0 0
Dec-10 N/A 4.6 N/A 0.1 3.7 0 0 0 0
Jan-11 N/A 12.6 N/A 41.2 3.4 0.2 0 0 0
Feb-11 N/A 13.9 N/A 36.7 4.4 0.2 0 0 0
Mar-11 N/A 15.3 N/A 11.1 4.8 0 0 0 0
Apr-11 N/A 13.1 N/A 0.2 6.2 0 0 0 0
May-11 N/A 15.2 N/A 9.6 3.4 0 0 0 0
Jun-11 N/A 15.1 N/A 48.7 6.3 0 0 0 0
Jul-11 N/A 17.2 N/A 42 9 0 0 0 0
Aug-11 N/A 18.2 N/A 0 5.2 0 0 0 0
Sep-11 N/A 15.5 N/A 66.5 3.7 0 0 0 0
Oct-11 N/A 10.7 N/A 6.4 3.6 0 0 0 0
Percent Methane Gas by Date
Well IdentificationDate
Page 1 of 3
Table 6 - Methane Gas Measurements
Data Tracking
Owl's Den Landfill (Permit #55-02)
MMW-1 MMW-2 MMW-3 MMW-4 MMW-5 MMW-6 MMW-7 MMW-8 MMW-9
Percent Methane Gas by Date
Well IdentificationDate
Nov-11 N/A 4.3 N/A 59.3 3.4 0 0 0 0
Dec-11 N/A 17.9 N/A 60.2 3.8 0.1 0 0 0
Jan-12 N/A 21.4 N/A 36.2 5.4 0 0 0 0
Feb-12 N/A 22.6 N/A 0 5.9 0 0 0 0
Mar-12 N/A 21.6 N/A 36.3 5.9 0 0 0 0
Apr-12 N/A 24.9 N/A 19.7 6.1 0 0 0 0
May-12 N/A 26.2 N/A 70.5 5.2 0.2 0 0 0
Jun-12 N/A 23.4 N/A 70.9 4.5 0 0 0 0
Jul-12 N/A 20.9 N/A 0 3.9 0 0 0 0
Aug-12 N/A 14.2 N/A 8.3 2.4 0 0 0 0
Sep-12 N/A 13.2 N/A 0.4 1.3 0 0 0 0
Oct-12 N/A 15.5 N/A 61.7 1.3 0 0 0 0
Nov-12 N/A 10.8 N/A 1.2 0.7 0 0 0 0
Dec-12 N/A 9.8 N/A 0 0.3 0 0 0 0.8
Jan-13 N/A 18.1 N/A 14.8 0.4 0 0 0 0
Feb-13 N/A 22.9 N/A 29.4 0.7 0 0 0 0
Mar-13 N/A 24.2 N/A 68.5 1 0 0 0 0
Apr-13 N/A 26.1 N/A 70.8 1.5 0 0 0 0
May-13 N/A 27.3 N/A 39.3 1.5 0 0 0 0
Jun-13 N/A 28.6 N/A 46.1 1.6 0 0 0 0
Jul-13 N/A 34.4 N/A 55.9 1.8 0 0 0 0
Aug-13 N/A 33.4 N/A 72.0 2.2 0 0 0 0
Sep-13 N/A 26.9 N/A 40.4 2.3 0 0 0 0
Oct-13 N/A 19.2 N/A 62.6 1.7 0 0 0 0
Nov-13 N/A 13 N/A 44.6 0.5 0 0 0 0
Dec-13 N/A 18.9 N/A 16.6 0.8 0 0 0 0
Jan-14 N/A 24.5 N/A 67.4 1.7 0 0 0 0
Feb-14 N/A 23.4 N/A 35.8 1.5 0 0 0 0
Mar-14 N/A 27.6 N/A 63.1 2.1 0 0 0 0
Apr-14 N/A 28.2 N/A 0 2.8 0 0 0 0
May-14 N/A 31.7 N/A 0.9 2.8 0 0 0 0
Jun-14 N/A 25.1 N/A 31.7 1.7 0 0 0 0
Jul-14 N/A 18.9 N/A 70.2 0.8 0 0 0 0
Aug-14 N/A 17.4 N/A 7.1 0.4 0 0 0 0
Sep-14 N/A 20.2 N/A 70.0 0.5 0 0 0 0
Oct-14 N/A 20.6 N/A 66.6 0.5 0 0 0 0
Page 2 of 3
Table 6 - Methane Gas Measurements
Data Tracking
Owl's Den Landfill (Permit #55-02)
MMW-1 MMW-2 MMW-3 MMW-4 MMW-5 MMW-6 MMW-7 MMW-8 MMW-9
Percent Methane Gas by Date
Well IdentificationDate
Nov-14 N/A 14.7 N/A 0 0.3 0 0 0 0
Dec-14 N/A 16.1 N/A 4.4 0.1 0 0 0 0
Jan-15 N/A 19.4 N/A 66.2 0.4 0 0 0 0
Feb-15 N/A 20.2 N/A 62.1 0.7 0 0 0 0
Mar-15 N/A 22.7 N/A 62.4 1.2 0 0 0 0
Apr-15 N/A 23.6 N/A 0 1.1 0 0 0 0
May-15 N/A 26.3 N/A 60 0.5 0 0 0 0
Jun-15 N/A 26.2 N/A 18.4 0.4 0 0 0 0
Jul-15 N/A 18.1 N/A 65.7 0.1 0 0 0 0
Aug-15 N/A 13.9 N/A 59.2 0 0 0 0 0
Sep-15 N/A 10.7 N/A 14.6 0 0 0 0 0
Oct-15 N/A 10.0 N/A 10.9 0 0 0 0 0
Nov-15 N/A 20.3 N/A 66.6 0.1 0 0 0 0
Dec-15 N/A 26.4 N/A 0.0 0 0 0 0 0
Jan-16 N/A 29.6 N/A 51.4 0 0 0 0 0
Feb-16 N/A 27.6 N/A 41.2 0 0 0 0 0
Mar-16 N/A 29.6 N/A 47.2 0 0 0 0 0
Apr-16 N/A 28.1 N/A 65.8 0 0 0 0 0
Notes:
(1) Recorded measurements are in percent methane.
(2) Methane monitoring wells 5 through 9 were installed during the 2008 assessment activities.
(3) Methane monitoring wells 1 and 3 were removed from the monitoring plan following the 2008 assessment
activities due to their close proximity to the edge of waste.
(4) Highlighted data are above 100 percent of the lower explosive limit.
(5) Lower explosive limit for methane is 5 percent.
(6) Upper explosive limit for methane is 15 percent.
(7) N/A = Not Available
Page 3 of 3
Charts - Methane Gas Measurements
Data Tracking
Owl's Den Landfill (Permit #55-02)
Percent Methane Gas by Date
MMW-3
MMW-2
MMW-1
0
20
40
60
80
100
J a n -0 3
N o v -0 3
O c t -0 4
S e p -0 5
A u g -0 6
J u l -0 7
J u n -0 8
A p r -0 9
M a r -1 0
F e b -1 1
J a n -1 2
D e c -1 2
N o v -1 3
P e r c e n t
M e t h a n e
Month and Year
0
20
40
60
80
100
120
J a n -0 3
N o v -0 3
O c t -0 4
S e p -0 5
A u g -0 6
J u l -0 7
J u n -0 8
A p r -0 9
M a r -1 0
F e b -1 1
J a n -1 2
D e c -1 2
N o v -1 3
S e p -1 4
P e r c e n t M e t h a n e
Month and Year
0
20
40
60
80
100
J a n -0 3
N o v -0 3
O c t -0 4
S e p -0 5
A u g -0 6
J u l -0 7
J u n -0 8
A p r -0 9
M a r -1 0
F e b -1 1
J a n -1 2
D e c -1 2
N o v -1 3
P e r c e n t
M e t h a n e
Month and Year
Page 1 of 3
Charts - Methane Gas Measurements
Data Tracking
Owl's Den Landfill (Permit #55-02)
Percent Methane Gas by Date
MMW-1
18.9 16.6 0.8 0 0 0 0
insert new
MMW-6
MMW-5
MMW-4
0
20
40
60
80
100
J a n -0 3
N o v -0 3
O c t -0 4
S e p -0 5
A u g -0 6
J u l -0 7
J u n -0 8
A p r -0 9
M a r -1 0
F e b -1 1
J a n -1 2
D e c -1 2
N o v -1 3
S e p -1 4
P e r c e n t
M e t h a n e
Month and Year
0
20
40
60
80
100
J a n -0 3
N o v -0 3
O c t -0 4
S e p -0 5
A u g -0 6
J u l -0 7
J u n -0 8
A p r -0 9
M a r -1 0
F e b -1 1
J a n -1 2
D e c -1 2
N o v -1 3
S e p -1 4
P e r c e n t
M e t h a n e
Month and Year
0
20
40
60
80
100
J a n -0 3
N o v -0 3
O c t -0 4
S e p -0 5
A u g -0 6
J u l -0 7
J u n -0 8
A p r -0 9
M a r -1 0
F e b -1 1
J a n -1 2
D e c -1 2
N o v -1 3
S e p -1 4
P e r c e n t
M e t h a n e
Month and Year
Page 2 of 3
Charts - Methane Gas Measurements
Data Tracking
Owl's Den Landfill (Permit #55-02)
Percent Methane Gas by Date
MMW-1
MMW-8
MMW-9
MMW-7
0
20
40
60
80
100
J a n -0 3
N o v -0 3
O c t -0 4
S e p -0 5
A u g -0 6
J u l -0 7
J u n -0 8
A p r -0 9
M a r -1 0
F e b -1 1
J a n -1 2
D e c -1 2
N o v -1 3
S e p -1 4
P e r c e n t
M e t h a n e
Month and Year
0
20
40
60
80
100
J a n -0 3
N o v -0 3
O c t -0 4
S e p -0 5
A u g -0 6
J u l -0 7
J u n -0 8
A p r -0 9
M a r -1 0
F e b -1 1
J a n -1 2
D e c -1 2
N o v -1 3
S e p -1 4
P e r c e n t
M e t h a n e
Month and Year
0
20
40
60
80
100
J a n -0 3
N o v -0 3
O c t -0 4
S e p -0 5
A u g -0 6
J u l -0 7
J u n -0 8
A p r -0 9
M a r -1 0
F e b -1 1
J a n -1 2
D e c -1 2
N o v -1 3
S e p -1 4
P e r c e n t
M e t h a n e
Month and Year
Page 3 of 3
Appendix III – Well Sampling Logs and Laboratory Reports