9209_Wake_NorthWake_MSWLF_CDLF_ASDMetals_FID1442823_20200817

CDM
Smith
5400 Glenwood Avenue, Suite 400
Raleigh, North Carolina 27612
tel: [phone]
fax: [phone]
August 17, 2020
Ms. Christine Ritter
North Carolina Department of Environmental Quality
Division of Waste Management
Solid Waste Section
1646 Mail Service Center
Raleigh, North Carolina 27699-1646
Subject: Alternate Source Demonstration - Redevelopment and Sampling Report
North Wake Landfill Facility
Lined Landfill Permit No. 9209-MSWLF-1996
C&D Landfill Permit No. 9209-CDLF
Unlined Landfill Permit No. 9209-MSWLF-1984
Dear Ms. Ritter:
CDM Smith Inc. (CDM Smith), on behalf of Wake County, is pleased to provide this Alternate Source
Demonstration (ASD) for the North Wake Landfill (Site). This ASD has been prepared in accordance with
Solid Waste rule .1633(c)(3), the Solid Waste Section (SWS) Guidelines for Alternate Source
Demonstration Submittals for Solid Waste Management Facilities (ASD Guidelines) document (July
2017), and the Work Plan approved by the SWS on July 31, 2017. The purpose of the ASD is to
demonstrate that select metals exceeding the 15A NCAC 02L .0202 (NC 2L) Groundwater Standards or
Interim Maximum Allowable Concentrations (IMAC) detected in monitoring wells at the Site are
naturally occurring and not related to a release from the landfill. Results from the ASD are provided
below.
Background
The Site is located at 9209 Deponie Drive in Raleigh, Wake County, North Carolina, as shown on Figure 1
and consists of three landfill units: North Wake Lined Landfill, North Wake C&D Landfill, and North Wake
Unlined Landfill. The background monitoring wells for the Site are MW-11 (shallow background well)
and MW-11D (deep background well), which also serve as the background wells for the North Wake
Unlined Landfill, located northeast of the Site. The North Wake C&D Landfill is also located on this
property, north of the Site. The following monitoring wells serve as the downgradient compliance wells
for the Site, as shown on Figures 2: MW-12, -12D, -13, -14, -15, -15d, -16, -17, -17D, -18, -19, -20, -21, -
25, -25d, and -26. All groundwater monitoring wells at the Site are sampled semi-annually and analyzed
for North Carolina Appendix I volatile organic compounds, including 1,4-dioxane for select wells, and
Appendix I metals.
CO
WATER+ ENVIRONMENT +TRANSPORTATION+ ENERGY+ FACILITIES ,

csmith
Ms. Christine Ritter
August 17, 2020
Page 2
Landfill Geology and Hydrogeology
The Site is in the Piedmont Physiographic Province of North Carolina, which is characterized by gentle to
steep, hilly terrain with small quantities of alluvium. Saprolite, a clay -rich residual material that is the
product of in -place chemical weathering and leaching of bedrock, is commonly found in the Piedmont.
Beneath the saprolite is a transition zone consisting of weathered rock. The transition zone below the
saprolite is generally the zone in which most of the lateral groundwater flow takes place. The porosity
within the transition zone decreases with depth, as the degree of weathering decreases.
According to the North Carolina Geologic Map (Brown and Parker, 1985), the Site is located within the
Raleigh Belt, which is characterized by large areas of plutonic rocks, metavolcanics, metamorphic rocks,
and very few sediment deposits. The age of the Raleigh Belt is estimated to range from 500 to 196
million years old, with sediment deposits ranging from 63 to 2 million years old. According to the
geologic map, the Raleigh Gneiss underlies the Site.
The subsurface geology at the Site is highly variable. Generally, the Site is covered by 4 to 6 inches of
detritus, topsoil, and root mat. Underlying the topsoil is a layer of reddish -brown silty clay at 7 to 17 feet
below ground surface (bgs). The silty clay is underlain by a light brown, fine-grained sandy silt saprolite.
Generally, the saprolite grades into partially weathered rock to the top of bedrock, which ranges from
15 to greater than 65 feet bgs.
The transition zone beneath the saprolite is generally the zone in which most lateral groundwater flow
takes place (Daniel, 1987). This zone has the permeability of the crystalline material enhanced by shrink
and swell cracking caused by the hydration of mineral grains. Weathering of grains in the transition zone
is much less than in the saprolite, where formation of clay minerals by weathering often inhibits
groundwater flow. Groundwater flow and the depth of the water table in the transition zone generally
mirrors, and is largely controlled by, surface topography. The depth of the water table in the Piedmont
tends to vary seasonally in response to precipitation and the growing season. From mid -April through
October, vegetation intercepts much of the infiltrating precipitation before it reaches the water table,
and evapotranspiration rates are increased. Generally, the water table will rise and fall with the seasons
(i.e. highest in the spring and lowest in the fall).
Based on groundwater elevations collected from monitoring wells, groundwater flows east. The surficial
aquifer locally discharges to unnamed tributaries of the Neuse River located along the northern and
eastern boundaries of the Site. A potentiometric surface map is shown on Figure 2.
Exceedance Description
Chromium, cobalt, and vanadium have routinely exceeded the NC 2L or IMAC Groundwater Standards in
samples collected from the downgradient monitoring wells and the background monitoring well at the
Site. These analytes were identified as the constituents of concern (COC) for this ASD. Monitoring wells
with COC exceedances are presented below:
is

csmith
Ms. Christine Ritter
August 17, 2020
Page 3
• Chromium: MW-11D, -12, -12D, -13, -14, -15, -15D, -16, -17, -18, -20, -21, -25, and -26
• Cobalt: MW-11, -11D, -12, -12D, -13, -14, -15, -16, -17, -18, -20, -21, -25, -25D, and -26
• Vanadium: MW-11, -11D, -12, -12D, -13, -14, -15, -15D, -16, -17, -17D, -18, -19, -20, -21, -25,
-25D, and -26, -28
A summary of detected concentrations for all monitoring wells from the fall 2011 to spring 2020
sampling events is provided in Table 1.
Work Plan Description - Monitoring Well Redevelopment and
Sampling
As part of the ASD, CDM Smith redeveloped and collected additional quarterly samples for metals
analysis from the background monitoring wells MW-11 and -11D at the Site in order to generate non -
turbid (i.e. less than 10 Nephelometric Turbidity Units (NTUs)) samples. Since the first quarterly
sampling event in January 2018, a total of 10 quarterly background monitoring events have been
completed.
During the quarterly events, the background wells were redeveloped and purged by pumping with a
submersible pump. All monitoring wells were also redeveloped during the semi-annual sampling events.
As the wells were purged, accumulated suspended solids were removed from the wells. If the turbidity
reading was less than 10 NTUs after redevelopment, samples were immediately collected and analyzed
for total metals. If turbidity was greater than 10 NTUs, the well was allowed to settle overnight and
samples were collected within 24-hours. If turbidity remained greater than 10 NTUs within the settling
period, samples were collected for both total and dissolved metals. CDM Smith has collected dissolved
metals samples that have been filtered and preserved by the receiving laboratory since the fall 2016
sampling event. The filtered samples were held for analysis pending the total metals results. Metals that
exceeded the NC 2L or IMAC Standards were then analyzed for dissolved metals. Dissolved metal sample
results are provided in Table 1.
Data Evaluation
The background monitoring wells were redeveloped and sampled quarterly for metals in order to
generate new background levels for the COCs using site -specific Upper Tolerance Levels (UTLs), which
are a confidence limit of a percentile of the population. The U.S. Environmental Protection Agency's
(EPA) statistical software ProUCL 5.1 was used for statistical analyses, along with the EPA's Statistical
Analysis of Groundwater Monitoring Data and Resource Conservation and Recovery Act Facilities Unified
Guidance (Unified Guidance) document (March 2009).
The UTL is the upper limit of a tolerance interval (i.e. the concentration range designed to contain a
proportion of the underlying population of the background data from which a statistical sample is
drawn). Constituents in each compliance monitoring well will be compared to the site -specific UTL, or
CO

csmith
Ms. Christine Ritter
August 17, 2020
Page 4
new background level. According to the ASD Guidelines document, the UTL should use a coverage
proportion and confidence level of 95 percent and is also determined based on the normality of the data
set.
In order to calculate a site -specific UTL, analytical data from background monitoring wells with
turbidities less than 10 NTU were taken from the 10 most recent samples and were used for analysis per
the ASD Guidelines document. If there were not enough samples collected with turbidities under 10
NTU to complete the dataset, the samples with the next lowest turbidity were used until there were 10
samples to use for statistical analysis. To avoid analyzing the samples twice, no duplicate samples or
metals samples from the same collection date as a dissolved metals sample were used in the analysis.
Goodness -of -fit tests were used to identify data distributions and to check for the normality of the
background monitoring well sample data sets. Statistical outliers were also identified using Dixon's
outlier test. Outliers were removed from the data sets containing more than 10 samples. Based on the
Unified Guidance document, the Kaplan -Meier UTL method or a non -parametric prediction limit method
were used to statistically evaluate the data. The Kaplan -Meier UTL method was used for normally
distributed data sets with 50 percent or less non -detects. UTLs with non -normal data and/or greater
than 50 percent non -detects were calculated using a non -parametric prediction limit method.
Goodness -of -fit graphs and results from the statistical software are provided in Appendix A.
Concentration trend graphs for select monitoring wells and COCs are also provided in Appendix A. A
summary of the results is provided in Table 2.
UTLs were calculated for all COCs. Based on calculated UTLs and the NC 2L and IMAC Standards, site -
specific UTLs are proposed for cobalt and vanadium, and are provided below. A site -specific UTL was
calculated for chromium (7 parts per billion (ppb)) but is lower than its NC 2L Standard (10 ppb).
• Cobalt: 6 ppb
• Vanadium: 23 ppb
Conclusions
Based on qualitative and quantitative evaluation of current and historic groundwater sampling data, NC
2L and IMAC Standard metal exceedances may be attributed to naturally occurring background
concentrations and turbidity. Each COC is described in more detail below.
Chromium
Chromium has historically been detected above its NC 2L Groundwater Standard (10 ppb) in
downgradient monitoring wells MW-12, -12D, -13, -14, -15, -17, -18, -20, and -26, but has only recently
been detected above the standard in MW-16, -17, -18, -20, -25, and -26. In monitoring wells MW-16, -
18, -20, -21, -25, and -26, dissolved chromium was analyzed due to elevated turbidity and detections of
chromium above its standard. In each of these monitoring wells, dissolved chromium was either non -
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csmith
Ms. Christine Ritter
August 17, 2020
Page 5
detect or below the standard. Chromium was detected above the standard in samples collected from
MW-17 at 11 ppb in February 2020. This concentration is only slightly above the standard. Additionally,
chromium had not been detected above the standard in MW-17 since April 2013, at 17 ppb, and was
detected at the standard in April 2015. Exceedances of chromium at the Site may be attributed to
elevated turbidity at the time of sampling. Chromium also has shown a decrease in concentration over
time, with most exceedances occurring prior to 2016, before dissolved metals were analyzed at the Site,
as shown in the trend graphs.
Due to minimal chromium detections in the background well, the calculated site -specific UTL for
chromium was less than the Groundwater Standard. In this case, the groundwater standard (10 ppb) will
continue to be used.
Cobalt
The proposed site -specific UTL for cobalt is greater than most exceedances detected in downgradient
monitoring wells. Dissolved cobalt that was analyzed for MW-12, -12D, -13, -16, -18, -20, -21, -25, and
-25D were either non -detect or detected below its IMAC Groundwater Standard (1 ppb), as shown in the
trend graphs. Exceedances of cobalt in downgradient monitoring wells can be attributed to naturally
occurring conditions at the Site as well as elevated turbidity.
Vanadium
The proposed site -specific UTL for vanadium is greater than most exceedances detected in
downgradient wells. Vanadium exceedances is likely occurring due to natural background conditions.
Additionally, filtered samples collected from MW-12, -15, -18 and -26 did not have any detections of
dissolved vanadium. Filtered samples that did have exceedances of dissolved vanadium (i.e. MW-12D,
-13, -14, -15D, -16, -17, -17D, -19, -20, -21, and -25D), were reported at concentrations that are lower
than the proposed site -specific UTL.
Future Actions
Groundwater monitoring wells at the Site will continue to be sampled semi-annually. CDM Smith will
continue to develop the background and downgradient monitoring wells in order to generate more non -
turbid sample data. Additionally, filtered samples will continue to be collected from monitoring wells
with elevated turbidity. Background monitoring wells MW-11 and -11D will continue to serve as the
background wells for the Lined and Unlined Landfills, as well as for the C&D Landfill. The proposed site -
specific UTLs calculated for the Lined landfill will therefore be used at the Unlined and C&D Landfills.
Site -specific UTLs for chromium and other metals will be re-evaluated as additional data are collected or
as needed. Additionally, if calculated site -specific UTLs are lower than the NC 2L or IMAC Standard, the
NC 2L or IMAC Standard will continue to be used as the standard for that analyte.
CO

Smith
Ms. Christine Ritter
August 17, 2020
Page 6
If you have any questions regarding this ASD, please do not hesitate to contact me by email to
[e-mail] or by phone at [phone]. J A
Sincerely,
".Ulvjtx_
Mathew F. Colone, P.G., PMP
CDM Smith Inc.
cc: Elliott Cornell, Wake County
Jahn Roberson, Wake County
Jaclynne Drummond, NCDEQ DWM SWS
References
Brown, P.M. and Parker, J.M., 1985_ North Carolina Geologic Map, North Carolina Geologic Survey
Resources and Community Development, 1.500,000.
Chapman, M.J. et al., 2013. Naturally Occurring Contaminants in the Piedmont and Blue Ridge
Crystalline -Rock Aquifers and Piedmont Early Mesozoic Basin Siliciclastic-Rock Aquifers, Eastern
United States, 1994 —2008. USGS Scientific Investigations Report 2013-5072.
Daniel III, C.C., 1987. Statistical Analysis Relating Well Yield to Construction Practices and Siting of Wells
in the Piedmont and Blue Ridge Provinces of North Carolina. USGS Water Resources Report 86-4132.
North Carolina Department of Environmental Quality, 2017. NC Solid Waste Section Guidelines for
Alternate Source Demonstration Submittals for Solid Waste Management Facilities. Division of Waste
Management —Solid Waste Section.
U.S. EPA— Office of Resource Conservation and Recovery, 2009. Statistical Analysis of Groundwater
Monitoring Data and RCRA Facilities — Unified Guidance. EPA 230/R-09-007.
io

Table 1
Detected Groundwater Constituents - Metals
North Wake Lined Landfill
Permit Number 9209-MSWLF-1996
.
MW-11
17-Mar-11
0.0767J
0.0016J
0.00388J
0.000265J
0.00351J
0.0243
MW-11
1-Nov-11
0.0807J
0.00191
0.00633J13
0.00214JB
0.00361J
0.0196
MW-11
25-Apr-12
0.0653J
0.00237J
0.00323J
0.0121
MW-11
23-Oct-12
0.0806J
0.00142J
0.00366J
0.00532J
0.0197
MW-11
17-Apr-13
0.09J
0.0002J
0.002J
0.002J
0.008J
0.0011
0.0011
0.0091
0.026
MW-11
16-Oct-13
0.1
0.0001J
0.0002J
0.002J
0.0011
0.004J
0.0005J
0.0009J
0.005J
0.01513
MW-11
17-Apr-14
0.17
0.0005J
0.0002J
0.004J
0.006J
0.018
0.003J
0.003J
0.00008J
0.04
0.05013
MW-11
13-Nov-14
0.090J
0.0002J
0.0002J
0.002J
0.002J
0.008J
0.001J
0.0011
0.00005J
0.007J
0.024
MW-11
30-Apr-15
0.100
0.0002J
0.002J
0.003J
0.0101
0.001J
0.002J
0.00006J
0.012J
0.027
MW-11
15-Oct-15
0.11
0.0003J
0.0001J
0.003J
0.003J
0.011
0.0011
0.00004J
0.002J
0.00005J
0.013JB
0.027
MW-11
21-Apr-16
0.0005J
0.130
0.0003J
0.003J
0.004J
0.016
0.002J
0.002J
0.0001JB
0.018J
0.032
MW-11
1-Sep-16
0.090J
0.00028J
0.00054J
0.0024J
0.0026J
0.0083J
0.0013J
0.0016J
0.0111
0.020
MW-11 (dissolved)
1-Sep-16
0.048J
0.0011J
0.00028J13
0.002J
0.0069J
MW-11
20-Apr-17
0.061J
0.0012J
0.0015J
0.011
MW-11
22-Sep-17
0.045J
0.0024J
0.0018J
0.0037J
0.0063J
MW-11
15-Jan-18
0.050J
0.0028J
0.0017J
0.0023J
0.0072J
MW-11
13-Apr-18
0.061J
0.0023J
0.0020J
0.00027J
0.012
MW-11 (dissolved)
13-Apr-18
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA NA
NA
NA
NA
MW-11
31-Aug-18
0.066J
0.0025J
0.0041J
0.00057J
0.0053J
15.000
MW-11 (dissolved)
31-Aug-18
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA NA
NA
NA
MW-11
25-Oct-18
0.071J
0.0022J
0.0039J
0.00050J
0.0051J
0.066
MW-11 (dissolved)
25-Oct-18
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA NA
NA
NA
MW-11
26-Feb-19
0.057J
0.0020J
0.0014J
0.010
MW-11
25-Apr-19
0.120
0.00030J
0.0038J
0.0033J
0.020
0.0022J
0.0018J
0.017J
0.028
MW-11 (dissolved)
25-Apr-19
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA NA
NA
NA
MW-11
2-Jul-19
0.170
0.00070
0.0051
0.0074
0.025
0.0041
0.0043J
0.033
0.04513
MW-11 (dissolved)
2-Jul-19
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA NA
NA
NA
MW-11
7-Nov-19
0.059
0.0021J
0.0043J
0.00066J
0.00048
0.0056
0.025
MW-11 (dissolved)
7-Nov-19
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA NA
NA
NA
MW-11
22-Jan-20
0.087
0.00027J
0.0037J
0.0021J
0.012
0.0019
0.0015J
0.0033J
0.0092
0.021
MW-11 (dissolved)
22-Jan-20
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA NA
NA
NA
MW-11
9-Apr-20
0.055
0.0023J
0.0073J
MW-11D
18-Mar-11
0.000852J
0.0512J
0.00343J
0.00441J
0.00373J
0.00804J
MW-11D
2-Nov-11
0.0455J
0.00218J
0.00414J13
0.00245J
0.00586J
MW-11D
26-Apr-12
0.000247J
0.0442J
0.00304J
0.00968JB
0.00331J
0.00205J
0.00462J
MW-11D
24-Oct-12
0.0437J
0.000375J
0.00240J
0.00253J
0.00510J
MW-11D
18-Apr-13
0.0004J
0.050J
0.00011
0.002J13
0.0002J
0.001J
0.0006J
0.004JB
MW-11D
17-Oct-13
0.0006J
0.0006J
0.050J
0.0003J
0.0011
0.0002J
0.0011
0.00002J
0.0006J
0.002J
0.002J13
MW-11D
17-Apr-14
0.3
0.0021
0.0002J
0.015
0.013
0.056
0.011
0.0091
0.0002J
0.099
0.088
MW-11D
13-Nov-14
0.15
0.0007J
0.00011
0.005J
0.018
0.004J
0.003J
0.00007J
0.037
0.035
MW-11D
29-Apr-15
0.0006J
0.0005J
0.060J
0.00011
0.0001J
0.002J
0.0006J
0.003J
0.0003J
0.0009J
0.005J
0.008J
MW-11D
15-Oct-15
0.0004J
0.090J
0.0003J
0.0001J
0.003J
rO.00a
0.009J
0.002J
0.00005J
0.002J
0.014JB
0.016
MW-11D
21-Apr-16
0.0003J
0.060J
0.002J
0.0003J13
0.004J
0.0005J
0.002J
0.012
MW-11D
1-Sep-16
0.00043JB
0.045J
0.000076J
0.0012J
0.0021J
0.00025J
0.00075J
0.0027J
0.0092JB
MW-11D (dissolved)
1-Sep-16
0.041J
0.000045J
0.0007J
0.00073J
0.00072J
0.0017J
0.0062JB
MW-11D
20-Apr-17
0.048J
0.0022J
0.0022J
0.0022J
0.0050J
MW-11D
22-Sep-17
0.045J
0.0028J
0.0016J
0.0033J
0.0051J
MW-11D
15-Jan-18
0.045J
0.0028J
0.00075J
0.00191
0.0042J
MW-11D
12-Apr-18
0.043J
0.0058J
0.0028J
0.0044J
M W-11 D
31-Aug-18
0.045J
0.018J
0.0093J
0.0069J
MW-11D
23-Oct-18
0.046J
0.025
0.013J
0.0042J
M W-11 D
25-Feb-16
0.046J
0.0070J
0.0034J
0.0036J
MW-11D (dup)
25-Feb-19
0.045J
0.0099J
0.0049J
0.0040J
MW-11D
25-Apr-19
0.046J
0.0050J
0.0022J
0.0028J
MW-11D
2-Jul-19
0.09
0.00042
0.0041J
0.0025J
0.012
0.0018
0.0024J
0.017
0.018B
MW-11D (dissolved)
2-Jul-19
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
MW-11D
5-Nov-19
0.043
0.0023J
0.0026J
0.00029J
0.0019J
0.01313
MW-11D
21-Jan-20
0.00065J
0.046
0.0028J
0.0021J
0.00029J
0.0084J
MW-11D
21-Jan-20
0.00086J
0.048
0.0034J
0.0021J
0.00037J
0.0095J
MW-11D
8-Apr-20
0.044
0.00018J
0.0053
0.0013J
0.0028J
0.0099J
MW-12
15-Mar-11
0.311
0.00119
0.000625J
0.0152
0.0102
0.0682
0.0177
0.00695J
0.000389J
0.0824
0.0708
MW-12
20-Oct-11
0.167
0.00764J
0.00479J
0.0314
0.00662J
0.00357J
0.0344
0.0574
MW-12
11-Apr-12
0.000535J
0.185
0.000271J
0.00792J
0.00619J
0.0374
0.00798J
0.00372J
0.002J
0.000195J
0.0364
0.0383
MW-12
26-Oct-12
0.226
0.00941J
0.00562J
0.0422
0.00779J
0.00424J
0.00109J
0.000160J
0.0474
0.0498
MW-12
11-Apr-13
0.44
0.0019
0.0002J
0.02
0.013
0.067
0.011
0.01J
0.0005J
0.077
0.077
MW-12
2-Oct-13
0.210
0.0008J
0.0003J
0.006J
0.005J
0.025
0.004J
0.004J
0.0002J
0.030
0.03713
MW-12
4-Apr-14
0.280
0.0008J
0.0002J
0.008J
0.0091
0.036
0.005J
0.005J
0.0002J
0.059
0.058B
MW-12
12-Nov-14
0.080J
0.0002J
0.002J
0.003J
0.009J
0.001J
0.002J
0.00008J
0.007J
0.014
MW-12
8-Apr-15
0.080J
0.0003J
0.003J
0.003J
0.012
0.002J
0.002J
0.00006J
0.0111
0.019J13
MW-12
7-Oct-15
0.080J
0.0002J
0.00011
0.002J
0.003J
0.011
0.0011
0.002J
0.00007J
0.004J
0.020
MW-12
25-Mar-16
0.142
0.00049J
0.0057J
0.0043J
0.0225
0.00299J
0.0034J
0.00015J
0.014J
0.0347
MW-12
1-Sep-16
0.00025J
0.520
0.0021
0.0022J1D
0.018D
0.08413
0.012
0.012J1D
0.0015J
0.00018J
0.00062J
0.100D
0.100
MW-12 (dissolved)
1-Sep-16
0.00024J
0.030J
0.000068J
0.0042J
0.00062JB
0.017J
0.0011
0.005J
MW-12
11-Apr-17
0.076J
0.00018J
0.0018J
0.0018J
0.0092J
0.0011J
0.0021J
0.0111
0.013
MW-12
13-Sep-17
0.038J
0.0014J
0.0024J
0.00037J
0.0013J
0.015J
0.012
MW-12 (dissolved)
13-Sep-17
NA
NA
NA
NA
NA
0.00063J
NA
NA
NA
NA
NA
NA
NA
0.0026J
NA
MW-12
4-Apr-18
0.039J
0.0021J
0.0022J
0.00033J
0.0017J
0.0045J
MW-12 (dissolved)
4-Apr-18
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
MW-12
4-Oct-18
0.033J
0.0013J
0.0061J
0.0032J
0.0051J
MW-12
18-Apr-19
0.110
0.00023J
0.0040J
0.0029J
0.017
0.0024J
0.0032J
0.018J
0.021
MW-12 (dissolved)
18-Apr-19
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
MW-12
12-Sep-19
0.051
0.0014J
0.0036J
0.00052J
0.0023J
0.000191
0.0064
0.01213
MW-12
25-Feb-20
0.17
0.00047
0.0064
0.0050
0.026
0.0044
0.0043J
0.0013J
0.00015J
0.027
0.032
MW-12 (dissolved)
25-Feb-20
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
CDM
Page 1 of 6 Alternate Source Demonstration

Table 1
Detected Groundwater Constituents - Metals
North Wake Lined Landfill
Permit Number 9209-MSWLF-1996
M W-12 D
6-May-10
0.0197J
0.00862J
0.00258J
MW-12D
29-Oct-10
0.0212J
0.0104
0.000502J
0.00253J
MW-12D
15-Mar-11
0.0254J
0.0117
0.000156J
0.00201J
M W-12 D
20-Oct-11
0.0264J
0.00945J
0.00179J
MW-12D
11-Apr-12
0.00072J
0.0249J
0.0149
0.00146J
MW-12D
26-Oct-12
0.00126J
0.0274J
0.00273J
0.00979J
0.00245J
0.00914J
MW-12D
11-Apr-13
0.0005J
0.03J
0.0005J13
0.0002J13
0.017
0.0009J13
MW-12D (dup)
11-Apr-13
0.0007J
0.03J
0.0002J
0.0006J13
0.0002J13
0.014
0.0002J
0.0009J13
0.005J
M W-12 D
2-Oct-13
0.03J B
0.00006J B
0.0011
0.012
0.00091
MW-12D
4-Apr-14
0.0004J
0.020J
0.0003J
0.0001J
0.006J
0.002J
0.007J13
MW-12D
13-Nov-14
0.0015J
0.040J
0.00006J
0.0010J
0.085
0.002J
0.032
0.001J
0.041J
0.00006J
0.007J
0.017
MW-12D
8-Apr-15
0.0004JB
0.020J
0.0002J
0.029
0.0005J
0.015
0.0003J
0.014J
0.006JB
MW-12D
7-Oct-15
0.0006J
0.020J
0.0006J
0.001J
0.0002J
0.0091
0.001J
0.010
MW-12D
25-Mar-16
0.0003J
0.017
0.0010J13
0.0002J
0.0053J
0.0007J
0.0018J
MW-12D
1-Sep-16
0.025J
0.000054J
0.00052J
0.0082JB
0.0023J
0.0035J
MW-12D (dissolved)
1-Sep-16
0.026J
0.00007J
0.0011
0.00081JB
0.00094J
0.0025J
0.0032J
M W-12 D
11-Apr-17
0.027J
0.0059J
0.0024J
MW-12D
12-Sep-17
0.025J
0.0071J
0.0101
0.0027J
M W-12 D
4-Apr-18
0.022J
0.0018J
0.0046J
M W-12 D
3-Oct-18
0.024J
0.0042J
0.0025J
MW-12D
16-Apr-19
0.020J
0.0016J
0.0032J
MW-12D
11-Sep-19
0.0012J
0.026
0.00015J
0.0015J
0.011
0.00059J
0.0014J
0.0036J
0.017B
MW-12D
24-Feb-20
0.00151
0.023
0.0016J
0.0069
0.00062J
0.0084J
MW-13
15-Mar-11
0.0793J
0.000159J
0.0147
0.00388J
0.00233J
0.00343J
0.00566J
0.000135J
0.0185J
0.0293
MW-13
20-Oct-11
0.153
0.0305
0.00995J
0.00226J
0.00533J
0.0156J
0.00209J
0.0403
0.0617
MW-13
11-Apr-12
0.000929J
0.196
0.0458
0.0136
0.00234J
0.00862J
0.0223J
0.00234J
0.000336J
0.0564
0.0702
MW-13
26-Oct-12
0.00540J
0.297
0.0731
0.0223
0.00462J
0.0146
0.0388J
0.000212J
0.0949
0.126
MW-13
11-Apr-13
0.11
0.0005J
0.024
0.007J
0.002J
0.003J
0.012J
0.0002J
0.027
0.031
MW-13
2-Oct-13
0.070J
0.0003J13
0.014
0.004J
0.001J
0.001J
0.007J
0.00011
0.0191
0.015B
MW-13
4-Apr-14
0.070J
0.0002J
0.0101
0.003J
0.00091
0.0011
0.005J
0.00007J
0.016J
0.018B
MW-13
12-Nov-14
0.040J
0.00006J
0.005J
0.00091
0.0003J
0.0003J
0.002J
0.006J
0.005J
MW-13
8-Apr-15
0.050J
0.00011
0.007J
0.002J
0.001J
0.0007J
0.003J
0.0091
0.013B
MW-13
7-Oct-15
0.060J
0.0002J
0.012
0.003J
0.0009J
0.001J
0.005J
0.00007J
0.0101
0.018
MW-13
25-Mar-16
0.035J
0.00012J
0.0066J
0.0016J
0.0005J
0.00064J
0.0029J
0.0095J
MW-13
1-Sep-16
0.0002J
0.17
0.00066J
0.000059J
0.032
0.01
0.0029J13
0.0041J
0.015J
0.00017J
0.00028J
0.042
0.054
MW-13 (dissolved)
1-Sep-16
0.023J
0.0011J
0.00030J13
0.00080J
0.0042J
0.0034J
MW-13
11-Apr-17
0.036J
0.0037J
0.00073J
0.00041J
0.0017J
0.0073J
0.0087J
MW-13
12-Sep-17
0.00091J
0.027J
0.0037J
0.000991
0.00049J
0.027
0.0048J
MW-13 (dup)
12-Sep-17
0.026J
0.0035J
0.0011J
0.020J
0.0046J
MW-13
4-Apr-18
0.027J
0.0031J
0.0039J
0.0050J
MW-13
4-Oct-18
0.031J
0.0048J
0.00029J
0.0014J
0.0071J
0.0068J
MW-13 (dissolved)
4-Oct-18
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
0.0044J
NA
MW-13
18-Apr-19
0.041J
0.0048J
0.0025J
0.0011J
0.0021J
0.0069J
0.040
MW-13 (dissolved)
18-Apr-19
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
0.0034J
NA
MW-13
12-Sep-19
0.052
0.00025J
0.0086
0.0018J
0.0012
0.0037J
0.000191
0.014
0.015B
MW-13 (dissolved)
12-Sep-19
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
0.0038J
NA
M W-13
25-Feb-20
0.028
0.0028J
0.0038J
MW-14
15-Mar-11
0.0261J
0.00256J
0.00484J
0.00465J
MW-14
20-Oct-11
0.0402J
0.00423J
0.00271J
0.00449J
0.00323J
0.0103J
0.0142
MW-14
11-Apr-12
0.0715J
0.000146J
0.00813J
0.00584J
0.0156
0.00483J
0.00682J
0.0217J
0.0186
MW-14
26-Oct42
0.00338J
0.109
0.0175
0.00874J
0.0216
0.00644J
0.0137J
0.0281
0.0356
MW-14
11-Apr-13
0.110
0.0005J
0.014
0.0091
0.023
0.005J
0.015J
0.00011
0.036
0.029
MW-14
2-Oct-13
0.110
0.0006J
0.00011
0.012
0.007J
0.022
0.004J
0.012J
0.0001J
0.034
0.033B
MW-14
4-Apr-14
0.080J
0.0002J
0.006J
0.004J
0.010J
0.002J
0.005J
0.026
0.023B
MW-14
13-Nov-14
0.003J
0.00005J
0.0002J
0.022
0.0011
0.003J
0.0003J
0.011J
0.005J
0.004J
MW-14
8-Apr-15
0.030J
0.00009J
0.004J
0.0011
0.004J
0.0007J
0.002J
0.006J
0.008J13
MW-14
8-Oct-15
0.050J
0.0002J
0.007J
0.004J
0.011
0.002J
0.006J
0.013J
0.019
MW-14
25-Mar-16
0.057J
0.00017J
0.0065J
0.0037J
0.0086J
0.00171J
0.0057J
0.00007J
0.012J
0.0138
MW-14
1-Sep-16
0.060J
0.00028J
0.000045J
0.0069J
0.0048J
0.01113
0.0025J
0.0064J
0.00021J
0.000075J
0.018J
0.017
MW-14 (dissolved)
1-Sep-16
0.016J
0.0013J
0.00030J13
0.00091J
0.005J
0.0031J
MW-14
10-Apr-17
0.056J
0.00024J
0.0056J
0.0038J
0.00911
0.0020J
0.0054J
0.013J
0.019
MW-14
12-Sep-17
0.018J
0.0025J
0.0015J
0.027
0.0041J
MW-14
4-Apr-18
0.025J
0.0039J
0.0037J
0.0057J
MW-14 (dissolved)
4-Apr-18
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
0.0025J
NA
MW-14
4-Oct-18
0.021J
0.0033J
0.0041J
0.0032J
MW-14 (dissolved)
4-Oct-18
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
0.0069
NA
MW-14
16-Apr-19
0.021J
0.0051J
0.0022J
0.0040J
MW-14
12-Sep-19
0.020
0.0019J
0.0058
0.0047BJ
MW-14
25-Feb-20
0.022
0.0041J
0.0040J
Smith
Page 2 of 6 Alternate Source Demonstration

Table 1
Detected Groundwater Constituents - Metals
North Wake Lined Landfill
Permit Number 9209-MSWLF-1996
.
MW-15
14-Mar-11
0.0795J
0.00478J
0.00304J
0.00931J
0.00203J
0.0104J
0.0318
0.0223
MW-15
20-Oct-11
0.249
0.00066J
0.0577
0.0194
0.0908
0.00867J
0.033J
0.00127J 0.00416J
0.000489J
0.144
0.0716
MW-15
11-Apr-12
0.200
0.0389
0.0132
0.0623
0.00796J
0.0219J
0.00187J
0.000251J
0.0938
0.0512
MW-15
26-Oct-12
0.00305J
0.269
0.0507
0.0194
0.0938
0.00968J
0.0346J
0.00167J 0.00298J
0.000276J
0.153
0.0834
MW-15
11-Apr-13
0.180
0.0003J
0.0004J
0.031
0.011
0.046
0.003J
0.018J
0.0002J
0.069
0.032
MW-15
2-Oct-13
0.220
0.0003J13
0.0006J
0.031
0.011
0.055
0.003J
0.017J
0.0002J
0.093
0.035B
MW-15
4-Apr-14
0.120
0.00007J
0.0001J
0.003J
0.004J
0.007J
0.0007J
0.002J
0.018J
0.01113
MW-15
13-Nov-14
0.070J
0.0002J
0.001J
0.004J
0.003J
0.002J
0.004J
0.008J
MW-15
9-Apr-15
0.090J
0.0001J
0.002J
0.004J
0.003J
0.0003J
0.001J
0.003J
0.005JB
MW-15
8-Oct-15
0.080J
0.0001J
0.007J
0.008J
0.010
0.0005J
0.010J
0.00006J
0.006J
0.017
MW-15
25-Mar-16
0.107
0.000111
0.00012J
0.0108
0.0032J
0.0151
0.00128J
0.0044J
0.00011
0.0191
0.0167
MW-15 (dup)
25-Mar-16
0.0007J
0.128
0.000101
0.00023J
0.0136
0.0044J
0.0194
0.00137J
0.0062J
0.001J
0.00013J
0.025
0.0245
MW-15
1-Sep-16
0.077J
0.00011J
0.0069J
0.0038J
0.01213
0.00089J
0.0042J
0.0191
0.013
MW-15 (dissolved)
1-Sep-16
0.041J
0.0015J
0.00044JB
0.0059J
0.0088J
MW-15
11-Apr-17
0.054J
0.0016J
0.0088J
0.0025J
0.00026J
0.0066J
0.0058J
0.0062J
MW-15
13-Sep-17
0.053J
0.011
0.0013J
0.0019J
0.020J
0.0043J
MW-15
3-Apr-18
0.060J
0.0035J
0.0035J
0.0043J
0.0080J
0.0028J
0.0068J
MW-15 (dup)
3-Apr-18
0.061J
0.0028J
0.0034J
0.0045J
0.007J
0.0028J
0.007J
MW-15
3-Oct-18
0.054J
0.0095J
0.0056J
0.0020J
0.014J
0.0029J
0.0046J
MW-15
16-Apr-19
0.060J
0.0015J
0.0025J
MW-15
11-Sep-19
0.055
0.00021J
0.0037J
0.0048J
0.0075
0.00056J
0.0040J
0.011
0.011E
MW-15
25-Feb-20
0.100
0.00021J
0.0074
0.0051
0.014
0.0012
0.0042J
0.017
0.012
MW-15D
14-Mar-11
0.000361J
0.0635J
0.000539J
0.00445J
0.00196J
0.00228J
0.00432J
0.00414J
MW-15D
19-Oct-11
0.000713J
0.0715J
0.000423J
0.005J
0.00377J
0.00632J
MW-15D
10-Apr-12
0.00103J
0.081J
0.000677J
0.00577J
0.0697
0.00286J
0.00415J
0.0156
MW-15D
25-Oct-12
0.0796J
0.000727J
0.00364J
0.0186
0.00345J
0.0105
MW-15D
10-Apr-13
0.0021J
0.0801
0.0004J
0.003J
0.00009J6
0.01J
0.0003J
0.001J
0.006J
MW-15D
2-Oct-13
0.0003J
0.080J
0.00005J13
0.001J
0.0001J
0.002J
0.0009J
0.002J
MW-15D
4-Apr-14
0.0005J
0.070J
0.0003J
0.001J
0.00006J
0.003J
0.0010J
0.005J
0.005JB
MW-15D
13-Nov-14
0.0006J
0.070J
0.0002J
0.001J
0.0001J
0.002J
0.0008J
0.005J
MW-15D (dup)
13-Nov-14
0.0010J
0.070J
0.0003J
0.0011
0.0001J
0.003J
0.0007J
0.011
MW-15D
9-Apr-15
0.070J
0.0002J
0.0008J
0.00008J
0.003J
0.0006J
0.003J13
MW-15D
8-Oct-15
0.070J
0.0006J
0.001J
0.000091
0.002J
0.002J
0.010
MW-15D
25-Mar-16
0.0003J
0.071J
0.00032J
0.0013J13
0.0001J
0.0015J
0.00013J
0.0009J
0.0060J
MW-15D
1-Sep-16
0.00027J
0.066J
0.000061J
0.0012J13
0.00016J
0.0011J
0.0036J
0.0059J
MW-15D (dissolved)
1-Sep-16
0.072J
0.001J13
0.0019J
0.0039J
0.01
MW-15D
11-Apr-17
0.068J
0.0016J
0.0046J
0.0038J
MW-15D
13-Sep-17
0.079J
0.0016J
0.023J
0.0027J
MW-15D
3-Apr-18
0.075J
0.014
0.0032J
0.0097J
0.0026J
M W-15 D
3-Oct-18
0.068J
0.0017J
0.0048J
MW-15D (dup)
3-Oct-18
0.066J
0.0015J
0.0041J
MW-15D
16-Apr-19
0.0017J
0.069J
0.0002313J
0.0014J
0.0031J
0.0023J
0.0038J
0.0098J
MW-15D
11-Sep-19
0.0025
0.064
0.00017J
0.0020J
0.0051
0.00084J
0.0016J
0.0049J
0.027E
MW-15D (dup)
11-Sep-19
0.0022
0.063
0.00013J
0.0017J
0.0043J
0.00065J
0.0015J
0.0046J
0.02413
MW-15D
24-Feb-20
0.0012J
0.065
0.0020J
0.0029J
0.0023J
0.0073
0.0097J
MW-15D (dup)
24-Feb-20
0.0013J
0.064
0.0025J
0.0032J
0.00028J
0.0024J
0.0069
0.02
MW-16
15-Mar-11
0.000551J
0.134
0.00105J
0.0025J
0.00613J
0.00307J
0.00391J
0.0147
MW-16
20-Oct-11
0.000262J
0.154
0.00135J
0.00248J
0.00678J
0.00339J
0.00449J
0.016
MW-16
11-Apr-12
0.000729J
0.142
0.00235J
0.00409J
0.0103
0.00273J
0.00695J
0.0184
MW-16
26-Oct-12
0.176
0.00641J
0.00652J
0.0229
0.00363J
0.00662J
0.000143J
0.013J
0.0481
MW-16
11-Apr-13
0.0003J
0.0008J
0.130
0.0003J
0.001J
0.003J
0.007J
0.0006J
0.004J
0.00007J
0.011
MW-16
2-Oct-13
0.0008J
0.0006J
0.140
0.00008J13
0.0002J
0.0007J
0.002J
0.009J
0.0007J
0.003J
0.00011
0.004J
0.015E
MW-16
4-Apr-14
0.0003J
0.001J
0.120
0.0001J
0.0003J
0.002J
0.004J
0.02
0.003J
0.004J
0.00009J
0.012J
0.02913
MW-16
13-Nov-14
0.0002J
0.0006J
0.130
0.0001J
0.0002J
0.005J
0.003J
0.013
0.002J
0.004J
0.0111
0.026
MW-16
9-Apr-15
0.0004JB
0.0009J
0.110
0.0001J
0.0005J
0.002J
0.005J
0.0002J
0.002J
0.000091
0.008JB
MW-16
8-Oct-15
0.120
0.0002J
0.0004J
0.002J
0.006J
0.002J
0.0001J
0.032
MW-16
25-Mar-16
0.0003J
0.119
0.00014J
0.0005J13
0.0020J
0.0052J
0.000191
0.0026J
0.00008J
0.0573
MW-16
1-Sep-16
0.0002J
0.00028J
0.0991
0.00013J
0.0015J
0.0033J
0.0071J13
0.001J
0.0037J
0.000082J
0.0049J
0.023
MW-16 (dissolved)
1-Sep-16
0.00018J
0.093J
0.000063J
0.0025J
0.0018J13
0.0033J
0.0013J
0.029
MW-16
11-Apr-17
0.100
0.00019J
0.0101
0.0057J
0.0031J
0.025
MW-16
13-Sep-17
0.0027J
0.360
0.0014
0.00094J
0.048
0.031
0.110
0.028
0.027J
0.00059J
0.120
0.200
MW-16 (dissolved)
13-Sep-17
NA
NA
NA
NA
NA
0.0016J
NA
NA
NA
NA
NA
NA
NA
0.0025J
NA
MW-16
4-Apr-18
0.100
0.00023J13
0.0014J
0.0027J
0.0052J
0.0038J
0.021
MW-16
4-Oct-18
0.094J
0.00021J
0.0014J
0.00191
0.0051J
0.0049J
0.026
MW-16 (dissolved)
4-Oct-18
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
MW-16
18-Apr-19
0.093J
0.00020J
0.0016J
0.012
0.00032J
0.0042J
0.200
MW-16 (dissolved)
18-Apr-19
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
MW-16
12-Sep-19
0.00070J
0.092
0.00016J
0.0013J
0.0074
0.0035J
0.11013
MW-16
25-Feb-20
1
1
1 0.088
1
1
1 0.0015J
1
0.0049J
0.0032J
0.053
Smith
Page 3 of 6
Alternate Source Demonstration

Table 1
Detected Groundwater Constituents - Metals
North Wake Lined Landfill
Permit Number 9209-MSWLF-1996
MW-17
15-Mar-11 0.0226J 0.00157J 0.00226J 0.00551J
MW-17
20-Oct-11 0.0343J 0.000305J 0.00743J 0.00149J 0.00252J 0.00208J 0.0118J 0.00988J
MW-17
11-Apr-12 0.0795J 0.0014 0.0266 0.00659J 0.013 0.012 0.00635J 0.000115J 0.0489 0.0243
MW-17
26-Oct-12 0.0817J 0.000616J 0.0366 0.00610J 0.0204 0.0133 0.00734J 0.0671 0.0293
MW-17
11-Apr-13 0.05J 0.0011J 0.0001J 0.017 0.003J 0.009J 0.006J 0.004J 0.032 0.01
MW-17
2-Oct-13 0.030J 0.0005J 0.0003J 0.006J 0.002J 0.003J 0.002J 0.002J 0.012J 0.004JB
MW-17
4-Apr-14 0.050J 0.0012 0.0002J 0.019 0.003J 0.011 0.008J 0.004J 0.00007J 0.035 0.01813
MW-17
13-Nov-14 0.060J 0.001 0.0011 0.019 0.004J 0.009J 0.007J 0.005J 0.00007J 0.034 0.015
MW-17
9-Apr-15 0.0006JB 0.040J 0.0006J 0.0002J 0.01 0.002J 0.005J 0.004J 0.002J 0.016J 0.005JB
MW-17
8-Oct-15 0.030J 0.0005J 0.0003J 0.009J 0.002J 0.004J 0.003J 0.002J 0.012J 0.015
MW-17
25-Mar-16 0.021J 0.00012J 0.00015J 0.0013J13 0.0001J 0.0005J 0.00016J 0.0035J
MW-17
1-Sep-16 0.00018J 0.018J 0.00018J 0.000111 0.0015J 0.00034J 0.00083J13 0.00047J 0.00073J 0.0033J 0.0035J
MW-17 (dissolved)
1-Sep-16 0.017J 0.000067J 0.00053J13 0.0012J 0.0014J 0.0041J
MW-17
11-Apr-17 0.024J 0.00041J 0.0026J 0.0018J 0.0011J 0.0067J 0.0070J
M W-17
13-Sep-17 0.017J 0.0016J 0.00069J 0.020J
MW-17
4-Apr-18 0.018J 0.00014J13 0.0022J 0.0042J 0.013
MW-17
4-Oct-18 0.016J 0.0015J 0.011
MW-17
16-Apr-19 0.024J 0.0034J 0.00026J
MW-17 (dup)
16-Apr-19 0.024J 0.00015J 0.0038J 0.00029J
MW-17
12-Sep-19 0.024 0.00030J 0.0050 0.0024J 0.0016 0.0013J 0.0081 0.01313
MW-17 (dissolved)
12-Sep-19 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA
MW-17
25-Feb-20 0.00073J 0.037 0.00083 0.00026J 0.011 0.00191 0.022 0.0040 0.0099 0.018 0.077
MW-17D
14-Mar-11
0.000871J
0.0381J
0.00118
0.00193J
0.0196
0.00452J
0.00717J
MW-17D
19-Oct-11
0.000692J
0.0408J
0.000773J
0.00219J
0.00633J
0.0042J
0.00787J
MW-17D (dup)
19-Oct-11
0.000773J
0.0405J
0.000846J
0.00214J
0.00654J
0.00439J
0.00819J
MW-17D
10-Apr-12
0.000669J
0.00351J13
0.0455J
0.000609J
0.00228J
0.014
0.00304J
0.00423J
0.00644J
MW-17D
25-Oct-12
0.0466J
0.000465J
0.00273J
0.00198J
0.00436J
0.00568J
MW-17D
10-Apr-13
0.0031J
0.040J
0.0006J
0.002J
0.0003J13
0.004J
0.0005J
0.001J
0.008J
MW-17D
1-Oct-13
0.0017J
0.040J
0.0001J13
0.0002J
0.002J
0.0003J13
0.004J
0.0008J
0.001J
0.003J
0.004JB
MW-17D
4-Apr-14
0.0003J
0.050J
0.0001J
0.002J
0.0005J
0.011
0.002J
0.001J
0.007J
0.009JB
MW-17D
13-Nov-14
0.0005J
0.0060J
0.0002J
0.0001J
0.003J
0.0007J
0.002J
0.004J
0.002J
0.005J
0.007J
MW-17D
9-Apr-15
0.0004J13
0.0005J
0.040J
0.0010J
0.002J
0.0002J
0.007J
0.0005J
0.0009J
0.004J13
MW-17D
8-Oct-15
0.0004J
0.040J
0.0001J
0.003J
0.0001J
0.002J
0.0003J
0.002J
0.006J
MW-17D (dup)
8-Oct-15
0.0005J
0.040J
0.0002J
0.003J
0.0001J
0.002J
0.0003J
0.003J
0.007J
MW-17D
25-Mar-16
0.0003J
0.039J
0.0025J
0.0001J
0.0017J
0.00038J
0.0013J
0.0044J
MW-17D
1-Sep-16
0.00039J
0.034J
0.000084J
0.0015J
0.0019J13
0.00031J
0.0011J
0.0042J
0.0079J
MW-17D (dup)
1-Sep-16
0.00046J
0.036J
0.000056J
0.0018J
0.0017J
0.00037J
0.00093J
0.0043J
0.0077J
MW-17D (dissolved)
1-Sep-16
0.00047J
0.015J
0.00015J
0.00085J
0.0017J13
0.0014J
0.0036J
0.012
MW-17D (dup, dissolved)
1-Sep-16
0.00052J
0.014J
0.00015J
0.001J
0.0017J
0.00091J
0.0038J
0.0071J
MW-17D
11-Apr-17
0.046J
0.0015J
0.0015J
0.0018J
0.0013J
0.00511
0.0065J
MW-17D (dup)
11-Apr-17
0.040J
0.0017J
0.0022J
0.0012J
0.0041J
0.0075J
MW-17D
13-Sep-17
0.038J
0.0025J
0.0034J
0.00053J
0.023J
0.0067J
MW-17D
4-Apr-18
0.027J
0.00085J13
0.0039J
0.0077J
0.00043J
0.0023J
0.019
MW-17D (dissolved)
4-Apr-18
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
MW-17D
4-Oct-18
0.037J
0.0029J
0.00052J
0.0040J
0.014
MW-17D (dissolved)
4-Oct-18
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
0.0034J
NA
M W-17D
17-Apr-19
0.040J
0.0028J
0.00028J
0.0041J
MW-17D
12-Sep-19
0.00092J
0.029
0.0023J
0.0017J
0.00039J
0.0042J
0.01613
MW-17D
24-Feb-20
0.0017J
0.044
0.00022J
0.0050
0.0053
0.00069J
0.0030J
0.0012
0.0039J
0.014
MW-18
15-Mar-11
0.0362J
0.00959J
0.00306J
0.0104
0.00349J
0.00828J
0.01
MW-18
20-Oct-11
0.0967J
0.0326
0.0116
0.0376
0.00234J
0.0141J
0.0282
0.0341
MW-18
11-Apr-12
0.000399J
0.352
0.000451J
0.126
0.0484
0.148
0.013
0.058
0.00373J
0.000194J
0.116
0.135
MW-18
26-Oct-12
0.00576J
0.311
0.0855
0.0361
0.114
0.00818J
0.0507
0.0732
0.134
MW-18
11-Apr-13
0.120
0.0004J
0.040
0.015
0.046
0.002J
0.020J
0.00091
0.033
0.038
MW-18
2-Oct-13
0.140
0.0005J
0.043
0.015
0.059
0.003J
0.021J
0.00011
0.037
0.03913
MW-18
4-Apr-14
0.240
0.0006J
0.00011
0.070
0.026
0.081
0.004J
0.035J
0.0002J
0.067
0.084
MW-18
13-Nov-14
0.290
0.0007J
0.0001J
0.088
0.034
0.099
0.005J
0.042J
0.0002J
0.081
0.112
MW-18
9-Apr-15
0.130
0.0005J
0.0002J
0.060
0.023
0.074
0.004J
0.031J
0.00011
0.031
0.048
MW-18
8-Oct-15
0.020J
0.005J
0.0011
0.004J
0.0002J
0.002J
0.0011
0.008J
MW-18
25-Mar-16
0.024J
0.00005J
0.0083J
0.0028J
0.0090J
0.00047J
0.0042J
0.0101
MW-18
1-Sep-16
0.039J
0.00013J
0.01
0.0036J
0.01113
0.00064J
0.0051J
0.011
0.013
MW-18 (dissolved)
1-Sep-16
0.014J
0.0002413J
0.00083J
0.00096J
0.0022J
0.0025J
MW-18
11-Apr-17
0.025J
0.0042J
0.0013J
0.0041J
0.0024J
0.0042J
0.0083J
MW-18
13-Sep-17
0.014J
0.0020J
0.0016J
0.023J
0.0049J
M W-18
4-Apr-18
0.019J
0.0047J
0.0036J
0.0018J
0.011
MW-18 (dissolved)
4-Apr-18
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
MW-18
4-Oct-18
0.045J
0.015
0.0045J
0.016
0.00070J
0.0073J
0.012J
0.025
MW-18 (dissolved)
4-Oct-18
NA
NA
NA
NA
NA
0.0017J
NA
NA
NA
NA
NA
NA
NA
NA
MW-18
18-Apr-19
0.046J
0.00015J
0.012
0.0043J
0.015
0.00076J
0.0069J
0.012J
0.022
MW-18 (dissolved)
18-Apr-19
NA
NA
NA
NA
NA
0.0014J
NA
NA
NA
NA
NA
NA
NA
NA
MW-18
12-Sep-19
0.043
0.00015J
0.012
0.0041J
0.018
0.00097J
0.0097
0.013
0.02813
MW-18 (dissolved)
12-Sep-19
NA
NA
NA
NA
NA
0.0022J
NA
NA
NA
NA
NA
NA
NA
NA
MW-18
25-Feb-20
0.038
0.00016J
0.013
0.0041J
0.011
0.00056J
0.038
0.0076
0.095
MW-18 (dissolved)
25-Feb-20
NA
NA
NA
NA
NA
0.0013J
0.0014J
NA
NA
NA
NA
NA
NA
NA
NA
Smith
Page 4 of 6 Alternate Source Demonstration

Table 1
Detected Groundwater Constituents - Metals
North Wake Lined Landfill
Permit Number 9209-MSWLF-1996
MW-19
15-Mar-11 0.0155J 0.00291J 0.00168J 0.00195J 0.00269J 0.0191
MW-19 (dup)
15-Mar-11 0.0151J 0.00288J 0.000115J 0.00259J 0.00756
MW-19
20-Oct-11 0.0145J 0.00276J 0.00232J 0.00958J
MW-19
10-Apr-12 0.0198J 0.00607J 0.00567J 0.00194J 0.00379J
MW-19
26-Oct-12 0.0153J 0.00318J 0.00212J 0.00252J 0.00594J
MW-19
11-Apr-13 0.02J 0.0001J 0.003J 0.0001J13 0.002J 0.001J 0.003J
M W-19
2-Oct-13 0.020J B 0.00008J B 0.002J 0.0001J B 0.002J 0.001J 0.003.113
MW-19
4-Apr-14 0.020J 0.0002J 0.004J 0.0004J 0.003J 0.002J 0.004J 0.007JB
MW-19 (dup)
4-Apr-14 0.020J 0.0001J 0.004J 0.0006J 0.004J 0.002J 0.004J 0.006JB
MW-19
13-Nov-14 0.010J 0.003J 0.0002J 0.001J 0.001J 0.004J
MW-19
8-Apr-15 0.010J 0.0002J 0.003J 0.0001J 0.002J 0.001J 0.005JB
MW-19
7-Oct-15 0.020J 0.004J 0.0002J 0.003J 0.001J 0.003J
MW-19
25-Mar-16 0.021J 0.00031J 0.0052J 0.0003J13 0.0051J 0.00027J 0.0017J 0.0034J
MW-19
1-Sep-16 0.00037J 0.013J 0.00014J 0.0029J 0.0011J 0.0013J 0.003J 0.0058J
MW-19 (dissolved)
1-Sep-16 0.00018J 0.013J 0.000111 0.0027J 0.00047J 0.0016J 0.0028J 0.0049J
MW-19
11-Apr-17 0.014J 0.00013J 0.0023J 0.0011J 0.0023J 0.0063J
MW-19
13-Sep-17 0.013J 0.0031J 0.015J
M W-19
4-Apr-18 0.015J 0.0048J 0.0013J
MW-19 (dissolved)
4-Apr-18 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA
MW-19
4-Oct-18 0.014J 0.0035J 0.0031J 0.0030J
MW-19
18-Apr-19 0.022J 0.0079J 0.0058J 0.00041J 0.0030J 0.0049J 0.0087J
MW-19 (dissolved)
18-Apr-19 NA NA NA NA NA NA NA NA NA NA NA NA NA NA 0.0027J NA
MW-19
12-Sep-19 0.016 0.0033J 0.0019J 0.0013J 0.0027J 0.013E
MW-19
25-Feb-20 0.017 0.00024J 0.0041J 1 0.0013J 0.0034J
MW-20
15-Mar-11
0.0229J
0.00152J
0.00698J
0.00273J
0.00998J
0.0101
MW-20
20-Oct-11
0.0311J
0.00282J
0.00264J
0.0167
0.0034J
0.0126J
0.0158
MW-20
11-Apr-12
0.105
0.0103
0.0157
0.107
0.00831J
0.0171J
0.0341
0.066
MW-20 (dup)
11-Apr-12
0.044J
0.00368J
0.00458J
0.0276
0.00495J
0.00506J
0.0154J
0.0198
MW-20
26-Oct-12
0.00314J
0.12
0.0138
0.0175
0.120
0.0117
0.023J
0.0426
0.0746
MW-20
11-Apr-13
0.13
0.0004J
0.012
0.019
0.129
0.009J
0.023J
0.0002J
0.042
0.064
MW-20
2-Oct-13
0.310
0.00091
0.00011
0.026
0.032
0.329
0.026
0.041J
0.0003J
0.110
0.168
MW-20
4-Apr-14
0.080J
0.0002J
0.007J
0.0101
0.068
0.0051
0.013J
0.00008J
0.034
0.04113
MW-20
12-Nov-14
0.210
0.0005J
0.025
0.032
0.217
0.019
0.036J
0.0003J
0.074
0.120
MW-20
8-Apr-15
0.110
0.0003J
0.00011
0.0091
0.013
0.093
0.007J
0.015J
0.00011
0.039
0.062
MW-20 (dup)
8-Apr-15
0.120
0.0003J
0.00011
0.013
0.017
0.131
0.009J
0.021J
0.00011
0.041
0.067
MW-20
8-Oct-15
0.040J
0.00005J
0.004J
0.004J
0.027
0.002J
0.006J
0.007J
0.017
MW-20
25-Mar-16
0.367
0.00082J
0.00018J
0.0274
0.0381
0.0283
0.0231
0.0447J
0.00032J
0.127
0.142
MW-20
1-Sep-16
0.00018J
0.13
0.00033J
0.000078J
0.014
0.018
0.13
0.0097J
0.02J
0.00016J
0.041
0.068
MW-20 (dissolved)
1-Sep-16
0.00026J
0.015J
0.000061J
0.0017J
0.00058J
0.0011J
0.0073J
0.0032J
MW-20
11-Apr-17
0.039J
0.0041J
0.0028J
0.025
0.0022J
0.0048J
0.016J
0.017
MW-20
13-Sep-17
0.00066J
0.056J
0.00021J
0.0086J
0.0050J
0.057
0.0047J
0.0092J
0.037
0.026
MW-20 (dissolved)
13-Sep-17
NA
NA
NA
NA
NA
0.0024J
NA
NA
NA
NA
NA
NA
NA
0.012J
NA
MW-20
4-Apr-18
0.055J
0.00021J
0.0091J
0.0047J
0.045
0.0087J
0.0096J
0.024J
0.022
MW-20 (dissolved)
4-Apr-18
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
0.0063
NA
MW-20
4-Oct-18
0.019J
0.0028J
0.0037J
0.00064J
0.0021J
0.0111
0.0042J
MW-20 (dissolved)
4-Oct-18
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
0.0095
NA
MW-20
18-Apr-19
0.640
0.00044J
0.00031J
0.060
0.079
0.760
0.070
0.099
0.0018J
0.00086J
0.170
0.390
MW-20 (dissolved)
18-Apr-19
NA
NA
NA
NA
NA
0.0024J
NA
NA
NA
NA
NA
0.0071
NA
MW-20
12-Sep-19
0.110
0.00038J
0.013
0.014
0.110
0.0076
0.018
0.00015J
0.040
0.059E
MW-20 (dissolved)
12-Sep-19
NA
NA
NA
NA
NA
0.0032J
NA
NA
NA
NA
NA
NA
NA
0.0075J
MW-20
25-Feb-20
0.072
0.00021J
0.013
0.0090
0.067
0.0044
0.014
0.027
0.035
MW-20 (dissolved)
25-Feb-20
NA
NA
NA
NA
NA
0.0036J
NA
NA
NA
NA
NA
NA
NA
0.0096
NA
MW-21
15-Mar-11
0.0452J
0.00166J
0.00273J
0.00201J
0.00483J
0.00619J
MW-21
20-Oct-11
0.0616J
0.00206J
0.00125J
0.00664J
0.00675J
0.0111
MW-21
10-Apr-12
0.208
0.000171J
0.00642J
0.00804J
0.0469
0.00349J
0.00246J
0.000122J
0.0315
0.0353
MW-21
26-Oct-12
0.209
0.00731J
0.00725J
0.0562
0.00464J
0.00343J
0.0357
0.0407
MW-21
11-Apr-13
0.1
0.0002J
0.00011
0.004J
0.003J
0.019
0.001J
0.002J
0.0111
0.012
MW-21
2-Oct-13
0.110
0.0003J6
0.0002J
0.003J
0.003J
0.022
0.001J
0.002J
0.00005J
0.015J
0.012E
MW-21 (dup)
2-Oct-13
0.130
0.0003J13
0.004J
0.004J
0.029
0.001J
0.002J
0.00007J
0.018J
0.01513
MW-21
4-Apr-14
0.090J
0.0001J
0.003J
0.002J
0.014
0.0008J
0.002J
0.012J
0.01313
MW-21
12-Nov-14
0.130
0.0002J
0.005J
0.004J
0.025
0.001J
0.002J
0.00006J
0.017J
0.019
MW-21
8-Apr-15
0.110
0.0002J
0.00011
0.009J
0.003J
0.017
0.001J
0.002J
0.00006J
0.0151
0.01913
MW-21
8-Oct45
0.280
0.0005J
0.007J
0.010
0.055
0.003J
0.004J
0.00011
0.0191
0.039
MW-21
25-Mar-16
0.076J
0.00005J
0.0028J
0.0014J
0.0072J
0.00047J
0.0007J
0.006J
0.0075J
MW-21
1-Sep-16
0.0002J
0.31
0.0006J
0.000111
0.0072J
0.012
0.068
0.0038J
0.0047J
0.00022J
0.045
0.058
MW-21 (dissolved)
1-Sep-16
0.034J
0.0012J
0.00028J
0.0024J
0.0035J
0.0046J
MW-21
11-Apr-17
0.063J
0.00021J
0.0021J
0.00101
0.0062J
0.00034J
0.0067J
0.0089J
MW-21
12-Sep-17
0.00072J
0.037J
0.0051J
0.0038J
0.0021J
0.0111
0.0051J
MW-21
4-Apr-18
0.110
0.00026J
0.013
0.0049J
0.027
0.0013J
0.011J
0.013J
0.020
MW-21 (dissolved)
4-Apr-18
NA
NA
NA
NA
NA
0.0026J
NA
NA
NA
NA
NA
NA
NA
NA
MW-21
4-Oct-18
0.068J
0.0073J
0.0017J
0.0089J
0.00053J
0.0041J
0.00901
0.0096J
MW-21 (dissolved)
4-Oct-18
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
0.0048J
NA
M W-21
17-Apr-19
0.040J
0.0029J
0.0014J
0.0034J
MW-21
12-Sep-19
0.083
0.0062
0.0023J
0.016
0.00081J
0.0028J
0.013
0.01313
MW-21 (dissolved)
12-Sep-19
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
MW-21
25-Feb-20
1
0.07
0.00013J
0.0067
0.0014J
1 0.0095
1 0.00054J
0.0025J
1
1 0.0092
1 0.036
CDM
Page 5 of 6
Alternate Source Demonstration

Table 1
Detected Groundwater Constituents - Metals
North Wake Lined Landfill
Permit Number 9209-MSWLF-1996
.
MW-25
14-Mar-11 0.0782J 0.00253J 0.00187J 0.00237J 0.00497J 0.000224J 0.00344J 0.0062J
MW-25
19-Oct-11 0.096J 0.00734J 0.00282J 0.00213J 0.00384J 0.00554J 0.0139
MW-25
11-Apr-12 0.0916J 0.00134J 0.00159J 0.00408J
MW-25
26-Oct-12 0.0805J 0.00553J 0.00141J 0.00192J 0.00503J 0.00393J 0.0135
MW-25
10-Apr-13 0.0801 0.0001J 0.003J 0.002J 0.001J 0.0004J 0.006J 0.004J
MW-25
2-Oct-13 0.080J 0.0001J13 0.003J 0.003J 0.002J 0.0003J 0.003J 0.004J 0.012B
MW-25
4-Apr-14 0.070J 0.002J 0.003J 0.0010J 0.0002J 0.005J 0.004J 0.009J13
MW-25
12-Nov-14 0.060J 0.0008J 0.0007J 0.0003J 0.004J 0.003J
MW-25
9-Apr-15 0.060J 0.002J 0.002J 0.003JB
MW-25
7-Oct-15 0.080J 0.00006J 0.004J 0.002J 0.001J 0.0003J 0.006J 0.006J
MW-25
25-Mar-16 0.071J 0.0010J13 0.0022J 0.0004J 0.0031J 0.0041J
MW-25
1-Sep-16 0.00032J 0.087J 0.00016J 0.000089J 0.0051J 0.0034J 0.0023J 0.00064J 0.0032J 0.0054J 0.011
MW-25 (dissolved)
1-Sep-16 0.057J 0.00069J 0.00031J 0.0028J 0.0011 0.0043J
MW-25
11-Apr-17 0.096J 0.0021J 0.0012J 0.00030J 0.0061J 0.0017J 0.011
MW-25
15-Sep-17 0.100 0.00013J 0.0017J 0.00191 0.0017J 0.0054J 0.014J 0.0077J
MW-25 (dissolved)
15-Sep-17 NA NA NA NA NA 0.0012J NA NA NA NA NA NA NA 0.0017J NA
MW-25
4-Apr-18 0.095J 0.0014J 0.0015J 0.0059J 0.0096J
MW-25
4-Oct-18 0.089J 0.0045J 0.0016J 0.0022J 0.00050J 0.0045J 0.0026J 0.0074J
MW-25 (dissolved)
4-Oct-18 NA NA NA NA NA NA NA NA NA NA NA NA NA NA
MW-25
17-Apr-19 0.0901 0.0021J 0.0082J 0.0052J
MW-25
12-Sep-19 0.110 0.00023J 0.00059 0.0086 0.0021J 0.0065 0.0013 0.012 0.0069 0.02613
MW-25 (dissolved)
12-Sep-19 NA NA NA NA NA NA NA NA NA NA NA NA NA NA
MW-25
25-Feb-20 0.12 0.00020J 0.0068 0.011 0.0032J 0.0060 0.0021 0.012 0.0076 0.06
MW-25 (dissolved)
25-Feb-20 NA NA NA NA 0.0022 NA NA NA NA NA NA NA NA
MW-25D
14-Mar-11
0.0623J
0.000106J
0.00693J
0.00315J
0.0176
0.00587J
0.000134J
0.01091
0.0133
MW-25D
19-Oct-11
0.07J
0.00859J
0.00506J
0.0228
0.00725J
0.0138J
0.0173
MW-25D
11-Apr-12
0.0485J
0.00427J
0.00144J
0.00905J
0.00575J
0.00449J
MW-25D
26-Oct-12
0.0485J
0.00506J
0.00164J
0.00974J
0.0300J
0.00711J
0.011
MW-25D
11-Apr-13
0.06J
0.0001J
0.006J
0.003J
0.015
0.0006J
0.005J
0.007J
0.007J
MW-25D
2-Oct-13
0.050J
0.0001J6
0.005J
0.002J
0.011
0.0004J
0.003J
0.008J
0.004JB
MW-25D
4-Apr-14
0.050J
0.0001J
0.006J
0.003J
0.018
0.0006J
0.005J
0.0101
0.01113
MW-25D
12-Nov-14
0.0004J
0.060J
0.0001J
0.007J
0.003J
0.02
0.0007J
0.006J
0.012J
0.015
MW-25D
9-Apr-15
0.050J
0.00005J
0.004J
0.002J
0.012
0.0005J
0.003J
0.007J
0.007J13
MW-25D
8-Oct-15
0.0005J
0.060J
0.00009J
0.0002J
0.006J
0.003J
0.020
0.00051
0.006J
0.007J
0.015
MW-25D
24-Mar-16
0.058J
0.00006J
0.00014J
0.0042J
0.0021J
0.0106
0.00037J
0.0040J
0.006J
0.0215
MW-25D
31-Aug-16
0.00022J
0.045J
0.00013J
0.000098J
0.0039J
0.00191
0.01
0.00037J
0.0035J
0.0076J
0.0097J
MW-25D (dissolved)
31-Aug-16
0.031J
0.0017J
0.0021J
0.0015J
0.0038J
0.0093J
MW-25D
11-Apr-17
0.050J
0.0046J
0.0016J
0.013
0.00044J
0.0035J
0.0087J
0.010
MW-25D
15-Sep-17
0.00066J
0.069J
0.00017J
0.00046J
0.0073J
0.0047J
0.028
0.0016J
0.0087J
0.025
0.032
MW-25D (dissolved)
15-Sep-17
NA
NA
NA
NA
NA
0.0024J
NA
NA
NA
NA
NA
NA
NA
0.0047J
NA
MW-25D
4-Apr-18
0.050J
0.0052J
0.0015J
0.012
0.00039J
0.0033J
0.0061J
0.0084J
MW-25D (dissolved)
4-Apr-18
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
MW-25D
4-Oct-18
0.060J
0.00024J
0.0075J
0.0033J
0.023
0.00079J
0.0057J
0.014J
0.017
MW-25D (dissolved)
4-Oct-18
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
0.0051
NA
MW-25D
18-Apr-19
0.054J
0.0057J
0.00191
0.014
0.00054J
0.0041J
0.00911
0.0098J
MW-25D (dissolved)
18-Apr-19
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
0.0030J
NA
MW-25D
12-Sep-19
0.066
0.00025J
0.0093
0.0040J
0.032
0.0012
0.0075
0.0001713J
0.018
0.02013
MW-25D (dissolved)
12-Sep-19
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
MW-25D
25-Feb-20
0.052
0.0059
0.0017J
0.013
0.00043J
0.0036J
0.0079
0.0095J
MW-25D (dissolved)
25-Feb-20
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
MW-26
15-Mar-11
0.0533J
0.000116J
0.00519J
0.0145
0.0465
0.00526J
0.0113J
0.000123J
0.013J
0.0176
MW-26
20-Oct-11
0.067J
0.00621J
0.0148
0.0439
0.0121J
0.0152J
0.0295
MW-26
11-Apr-12
0.0423J
0.00283J
0.0117
0.02
0.00391J
0.00723J
0.00675J
0.00682J
MW-26
25-Oct-12
0.123
0.000626J
0.0148
0.024
0.119
0.00193J
0.0293J
0.00208J
0.0365
0.0368
MW-26 (dup)
25-Oct-12
0.154
0.000933J
0.021
0.0302
0.157
0.00545J
0.0393J
0.00208J
0.0504
0.0555
MW-26
11-Apr-13
0.11
0.0003J
0.0006J
0.013
0.022
0.09
0.002J
0.025J
0.00006J
0.029
0.026
MW-26
2-Oct-13
0.130
0.0005J
0.0005J
0.015
0.024
0.106
0.001J
0.030J
0.00007J
0.039
0.03013
MW-26
4-Apr-14
0.060J
0.0001J
0.0001J
0.004J
0.014
0.028
0.0005J
0.011J
0.014J
0.0146
MW-26
12-Nov-14
0.040J
0.002J
0.011
0.011
0.007J
0.002J
0.005J
MW-26
8-Apr-15
0.030J
0.001J
0.011
0.006J
0.006J
0.003J13
MW-26
8-Oct-15
0.070J
0.0001J
0.0001J
0.007J
0.016
0.033
0.0005J
0.015J
0.008J
0.022
MW-26
25-Mar-16
0.00091
0.025J
0.0005J13
0.00911
0.00091
0.0034J
MW-26
1-Sep-16
0.074J
0.00018J
0.00021J
0.006J
0.014
0.051
0.00095J
0.013J
0.018J
0.018
MW-26 (dissolved)
1-Sep-16
0.031J
0.0078J
0.0005J
0.0038J
0.0063J
MW-26
11-Apr-17
0.032J
0.0081J
0.0056J
0.0042J
0.0026J
0.0059J
MW-26
13-Sep-17
0.030J
0.0020J
0.0039J
0.0092J
0.0034J
0.023J
0.0066J
MW-26 (dissolved)
13-Sep-17
NA
NA
NA
NA
NA
0.0036J
NA
NA
NA
NA
NA
NA
NA
0.0017J
NA
MW-26
4-Apr-18
0.063J
0.00018J
0.00016J13
0.0049J
0.011
0.055
0.00071J
0.011J
0.0111
0.014
MW-26 (dissolved)
4-Apr-18
NA
NA
NA
NA
NA
NA
0.0062
NA
NA
NA
NA
NA
NA
NA
NA
M W-26
4-Oct-18
0.033J
0.0046J
0.0023J
MW-26 (dissolved)
4-Oct-18
NA
NA
NA
NA
NA
NA
0.0054
NA
NA
NA
NA
NA
NA
NA
NA
NA
MW-26
18-Apr-19
0.061J
0.0031J
0.0086J
0.030
0.00057J
0.0079J
0.011J
0.011
MW-26 (dissolved)
18-Apr-19
NA
NA
NA
NA
NA
NA
0.0055
NA
NA
NA
NA
NA
NA
NA
NA
MW-26
12-Sep-19
0.110
0.00037J
0.00016J
0.011
0.017
0.096
0.0016
0.023
0.035
0.03513
MW-26 (dissolved)
12-Sep-19
NA
NA
NA
NA
NA
0.0062
NA
NA
NA
NA
NA
NA
NA
NA
MW-26
25-Feb-20
0.26
0.00047
0.00047J
0.02
0.039
0.24
0.0045
0.05
0.00041J
0.00015J
0.071
0.074
MW-26 (dissolved)
25-Feb-20
NA
NA
NA
NA
NA
0.0084
NA
NA
NA
NA
NA
NA
NA
NA
Notes:
1. All units are in milligrams per liter (parts per million).
2. * - Interim Maximum Allowable Concentration (IMAC)
3. dup - Duplicate Sample
4. Mercury is an Appendix II constituent that is only reported for background monitoring wells MW-11 and -11D.
5. J - Indicates the analytical result is an estimated concentration between the method detection limit and the limit of quantitation.
6. B - The analyte concentration detected in the method blank was greater than the method detection limit.
Dissolved metal samples were collected to evaluate the influence of turbidty on total metal concentrations as part of the Alternate Source Demonstration.
8. NA - Not Analyzed
- Concentration exceeds the 15A NCAC 02L .0202 (North Carolina 2L) or IMAC Standard.
- Indicates the result is below the detection limit.
Smith
Page 6 of 6
Alternate Source Demonstration

Table 2
Proposed Site -Specific Upper Tolerance Limits
North Wake Lined Landfill
Permit Number 9209-MSWLF-1996
Notes:
1. All units are in micrograms per liter (parts per billion).
2. UTL - Upper Tolerance Limit
3. NC 2L - 15A NCAC 02L .0202
4. * - Interim Maximum Allowable Concentration (IMAC)
5. KM - Kaplan -Meier Upper Tolerance Limit Method
6. NP - Non -Parametric Prediction Limit Method
7. NA - Not Applicable.
Proposed Site -Specific UTL
DM Page 1 of 1 Alternate Source Demonstration

Appendix A
Statistical Analyses

Appendix B
Statistical Analyses - ProUCL Notes
Notes:
1. Data analyses were completed using the U.S. Environmental Protection Agency's ProUCL 5.1 (ProUCL) software.
2. Select analytes from the background monitoring wells (i.e. MW-11 and -11D) were evaluated statistically to create new upper tolerance levels (UTLs).
3. The data table shows the format used in the ProUCL software. All detections are in parts per billion.
4. Data for non -detects are provided in two colums. The first column has the value of the detected observation as reported, or half of the reporting limit for non -detects. The
second column represents the detection status, V for non -detect and '1' for detect. The header representing the detection status column is shown as 'D_Analyte'
(e.g. D_Chromium, D_Vanadium). This is how the program takes non -detects into account when running analyses.
5. Goodness -of -fit tests were completed for each analyte. Graphs showing the goodness -of -fit are shown under the data table. Normality and percent non -detects
determined which analyses to use. No graphs are shown for wells with less than 3 detections.

North Wake Landfills
MW-11 Statistical Analyses
Date
Turbidity
1
2
3
Well ID
Chromium
D Chromium
25-Apr-12
38
MW-11
0.65
0
16-Oct-13
34
MW-11
2
1
16-Apr-14
1 21
MW-11
4
1
21-Apr-16
32
MW-11
3
1
20-Apr-17
24
MW-11
0.65
0
22-Sep-17
10
MW-11
2.4
1
26-Feb-19
28
MW-11
2
1
25-Apr-19
28
MW-11
3.8
1
7-Nov-19
23
MW-11
2.1
1
9-Apr-20
8
MW-11
2.3
1
Percent Non -Detects 20%
Normal Q-Q Plot for Chromium
�^
Statistics using ROS Norma! Imputed Estimates
ao
a� T=-uro
Thew 1 OuenEks [S4ad.rd M-fl
Nquhd NO. Di.pMy.d win, ■warted Twangk
Chromium
Kaplan -Meier Upper Tolerance Limit
Group
Observed
Mean
UTL
MW-11
10
2.7
5.385
XTons1,Mart

North Wake Landfills
MW-11 Statistical Analyses
Date
Turbidity
1
2
3
Well ID
Cobalt
D Cobalt
16-Apr-14
21
MW-11
6
1
20-Apr-17
24
MW-11
0.32
0
22-Sep-17
1 10
MW-11
0.32
0
26-Feb-19
28
MW-11
0.32
0
25-Apr-19
28
MW-11
3.3
1
25-Apr-19
--
MW-11
0.32
0
2-Jul-19
--
MW-11
0.32
0
7-Nov-19
23
MW-11
0.32
0
22-Jan-20
MW-11
0.32
0
9-Apr-20
8
MW-11
0.32
0
Percent Non -Detects 80%
Cobalt
Non -Parametric Prediction Limit
Group
Observed
Mean
UTL
MW-11
10
4.65
6
Cobalt

North Wake Landfills
MW-11 Statistical Analyses
Date
Turbidity
1
2
3
Well ID
Vanadium
D Vanadium
17-Mar-11
31
MW-11
3.51
1
1-Nov-11
33
MW-11
3.61
1
16-Oct-13
34
MW-11
5
1
21-Apr-16
32
MW-11
18
1
20-Apr-17
24
MW-11
1.5
1
22-Sep-17
10
MW-11
3.7
1
26-Feb-19
28
MW-11
0.75
0
25-Apr-19
28
MW-11
17
1
7-Nov-19
23
MW-11
5.6
1
9-Apr-20
8
MW-11
0.75
0
Percent Non -Detects 20%
Normal Q-4 Plot for Vanadium
statistics using ROS Normal imputed Estimates
i9:Qe.6ty
Vanadium
Kaplan -Meier Upper Tolerance Limit
Group
Observed
Mean
UTL
MW-11
10
7.24
23
Vanadium

North Wake Landfills
MW-11D Statistical Analyses
Date
Turbidity
1
2
3
Well ID
Chromium
D Chromium
24-Oct-12
3
MW-11d
2.4
1
18-Apr-13
10
MW-11d
2
1
29-Apr-15
1 8
MW-11d
2
1
21-Apr-16
4
MW-11d
2
1
1-Sep-16
2
MW-11d
1.2
1
22-Sep-17
6
MW-11d
2.8
1
12-Apr-18
4
MW-11d
5.8
1
25-Feb-19
6
MW-11d
7
1
25-Apr-19
5
MW-11d
5
1
5-Nov-19
9
MW-11d
2.3
1
21-Jan-20
7
MW-11d
2.8
1
8-Apr-20
8
MW-11d
5.3
1
Percent Non -Detects 0%
Normal O-0 Plot for Chromium
Statistics using ROS Normal Imputed Estimates
,n
�-sue
E -c. rfie-3�
:ietd :•a'.6a =L�
GS
• �
.
R1�
Th m tk-W Qmntks I51:ndwd No My --
InQ.t.d ND. D'.pbW d sdh in... bd Trwnyls
Chromium
Non -Parametric Prediction Limit
Group
Observed
Mean
UTL
MW-11d
12
1.084
7
14ffre 1 I art

North Wake Landfills
MW-11D Statistical Analyses
Date
Turbidity
1
2
3
Well ID
Cobalt
D Cobalt
24-Oct-12
3
MW-11d
0.32
0
18-Apr-13
10
MW-11d
0.2
1
29-Apr-15
1 8
MW-11d
0.6
1
21-Apr-16
4
MW-11d
0.3
1
1-Sep-16
2
MW-11d
0.32
0
22-Sep-17
6
MW-11d
0.32
0
12-Apr-18
4
MW-11d
0.32
0
23-Oct-18
9
MW-11d
0.32
0
25-Feb-19
6
MW-11d
0.32
0
25-Apr-19
5
MW-11d
0.32
0
2-Jul-19
-
MW-11d
0.32
0
5-Nov-19
9
MW-11d
0.32
0
21-Jan-20
7
MW-11d
0.32
0
8-Apr-20
8
MW-11d
0.32
0
Percent Non -Detects 79%
Normal "Plot for Cobalt
Statistics using ROS Normal imputed Estimates
i"
Thmradcjd Ooaneks (Standard Nomol]
�npumd MD3O sptaged with meted Triangle
Cobalt
Non -Parametric Prediction Limit
Group
Observed
Mean
UTL
MW-11d
14
0.367
0.6
Cobalt

North Wake Landfills
MW-11D Statistical Analyses
Date
Turbidity
1
2
3
Well ID
Vanadium
D Vanadium
24-Oct-12
3
MW-11d
2.53
1
18-Apr-13
10
MW-11d
0.75
0
29-Apr-15
8
MW-11d
5
1
21-Apr-16
4
MW-11d
0.75
0
1-Sep-16
2
MW-11d
2.7
1
22-Sep-17
6
MW-11d
3.3
1
12-Apr-18
4
MW-11d
0.75
0
23-Oct-18
9
MW-11d
0.75
0
25-Feb-19
6
MW-11d
0.75
0
25-Apr-19
5
MW-11d
0.75
0
5-Nov-19
9
MW-11d
0.75
0
21-Jan-20
7
MW-11d
0.75
0
8-Apr-20
8
MW-11d
0.75
0
Percent Non -Detects 69%
Norm al q-Q P lot for Van ad i u m �• •-
Statistics using RQS Narmal Imputed Estimates
E
g
r
Theoretica10—t les (SQnd d Notmap
Imputed ND04pgYed witl, Ww~ Tmnpk
Vanadium
Non -Parametric Prediction Limit
Group
Observed
Mean
UTL
MW-11d
13
3.383
5
Vanadium

Concentration Trend Graphs
1[1.0
c 14
O
12
v 10
a
8
L
Q- 6
0 4
+1
>4 2
Y
U 0
r-
O
U
30
c 25
20
v
a
15
L
M
a
c
10
0
0 5
L
M
U 0
c
O
U
120
c 100
80
v
a
60
L
M
Q
c
40
0
0 20
L
U 0
c
O
U
MW-11 Chromium
M M O O r-I N N M M IZT M M lD l0 I� r� W M M O
O O r-I r-I -I r-I r-I r-I r-I r-I r-I r-I r-I r-I r-I ri "I "I N
i ++ >� U Q L > C C L +' >T U -0 a L
C?p Ii cai Q Z Q Q
r-I
� r1
Date
MW-11 Cobalt
Dissolved Cobalt
M M O O -I N N M M -Zt Ln M lD lD II n w M M O
O O r-I r-I r-I r-I ri ri ri r-I ri ri ri ri ri r-I ri ri ri N
w N a z° z M a� o� oC) C) a
ri r�
Date
MW-11 Vanadium
Dissolved Vanadium
0 0 O O ri N N M-I r-I lD lD Ii n 0Ol Ol O
ri ri ri ri ri cr-I r-I r-I r-I c-I ri ri c-I c-I r-I r-I N
OUCOC)-0 Q L > C C UA L �"', >� U ' MUMw-0 Q L
C?LaL In Q z Q C?Ll N Q
c1
� � ri r-I r-I ri r-I c-1 ri r-I -1 ri � c-1 � ri ri ri
Date
'Mit 1 Page 1 of 18 Alternate Source Demonstration

Concentration Trend Graphs
30
c 25
20
v
a
Y 15
L
Q
c
10
0
m 5
L
Y
U 0
c
0
U
14
c 12
0
10
L Q. 8
Y
0 6
a
0 4
f6 2
L
Y
U 0
c
0
U
120
c 100
80
v
a
60
L
Q
c
40
0
m 20
c
u 0
c
0
U
MW-11D Chromium
Dissolved Chromium
M M o o 1-I N N m m't Ln Ln �1.0 r, r- w M M o
O O
M U m (1) v v Q- o M M M U M v -0 a s
O cn Q z 7 7 Q O 0)in Q
- - r - r�
Date
MW-11D Cobalt
O O
L Y U ' -0 Q L i i C w U ' -0 Q L
O � LL Q o 7 M 7 f6 U M w LL I?Q
z 7 7 Q
-1 r-I
Date
MW-11D Vanadium
Dissolved Vanadium
0 0 O O ci N N m m � Lf1 Lf1 l0 l0 I� n W Ol Ql O
r-I r-I ci rl ri ci rl ri .--I .--I ci rl ri rl ci rl ri N
O 4- n Q Z 7 Q O ii cn Q
rr-I r-I
Date
'Mit 1 Page 2 of 18 Alternate Source Demonstration

Concentration Trend Graphs
40
35
O
30
25
CL
Y 20
L
c 15
0 10
f6 5
41
c
U 0
c
O
U
EA it
35
O
30
v 25
CL
r 20
L
c 15
0 10
+1
r
5
c
U 0
c
O
U
200
— 180
c
,O 160
140
CL 120
Y 100
L Q 80
c 60
O
:r 40
ra
c 20
U 0
c
O
U
MW-12 Chromium
Dissolved Chromium
M M O O ,--I N N M M 1:T Ln Ln 1,0 LO I, r- W M M
-0 CL L > C C OA -0 Q
, 4-Ln Q Z `
2 O 2 o7
r-I r� r-I -1 -1 r-I - -
Date
MW-12 Cobalt
niccnlvarl Cnhalt
0 0 O O r-I N N M M Ln Ln l0 l0 I� 00 dl dl
r-
I .-. . r. . r. .-. r. r-I r-I .--I rl ri rl ri rl ri
i ++ >-0 Q i > C C w L +' >, U 75 -0 OL
O Il U? Q Z 7 M Q Q 9 LL. Ln
r-I c-
c rI
cI c-I � r-I r-I � � ,--� � � r-I r-I
Date
MW-12 Vanadium
M M O O r-I N N M M 1:T M Ln ILO LO r� r� W M M
-0 CL L > C C w i +' >� V -0 Q
M
Date
'Mit 1 Page 3 of 18 Alternate Source Demonstration

Concentration Trend Graphs
14
c 12
0
10
L Q 8
h
Y
0 6
a
0 4
+1
f6 2
L
U 0
c
O
U
12
MW-12D Cobalt
M M O O rl N N M M -ZT Ln Ln l0 l0 r\ r\ W M M
O O rl rl rl rl rl ri ri ri r-I rl rl rl
U OUM(U-0 Q i C C GD ccL +' ? U -0 Q
rl r-1 ri r1 r-1 -, r1 r"I rl ri r"1 r- r-1 -1 -1
Date
MW-12D Vanadium
Dissolved Vanadium
M M 0 0 ri N N M M-:T M In k.0 I0 r� r� w M M
O O ri r-I r-I rl rl rl rl ri ri r-I ri ri rl rl rl rl ri
L u -0 0-L i % C � u ' -0 Q
M o�i W C O= M= M o M w �i (V
ri z , , a ri
- -1 r -, r1 r1 r� r�
Date
'Mit 1 Page 4 of 18 Alternate Source Demonstration

Concentration Trend Graphs
MW-13 Chromium
Dissolved Chromium
M M O O r-I N N M M V1 M lD lO r- r, W M M
O O _j -1 —1 -1 r-I r-� -A r-I r-i -1 r-I -1 -1
@ >- u 5 -0 a L > � c oO - >- u -0 a
O � 0 � ii cn
Date
MW-13 Cobalt
Ql Ql O O r-I N N M M � u1 V1 lD lD I� � 00 Q1 Q1
OO O+� . . . . . . . . . .
>1 u-0 Q" > c c wi rl ci c-I rl ri rl
a
O 9 �i cn Q Z Q O p ii cn
Date
MW-13 Vanadium
250
c
2200
a 150
N
41
L
CM 100
C
70
60
v
Q- 50
41
40
a
c
30
° 20
41 10
c
U 0
c
O
u
300
c 250
-0200
w
a
150
u 0-rr
O M
M
O
O
ci N
N
M M
.Zt Ln
m
lO
lO
r
r�
m m
m
CJ O
O
r
rI
rI rI
rI
c r
rI
I
rI
rI
r
c1
rI rI
rI
L
-
o
>-
u
a
>
c C
ao
L
+-,
>-
U
a
o
4-
a z°
Date
'Mit 1 Page 5 of 18 Alternate Source Demonstration

Concentration Trend Graphs
25
c
O 20
Z
a 15
41
L
M 10
O
5
41
c
0
0
u
10
9
r-
0 8
7
a 6
CA 5
L
f6 4
a
c 3
O
r, 2
M
41
L 1
u 0
O
U
40
c 35
0
30
25
a
Y 20
L
Q 15
0 10
+1
f6 5
c
U 0
c
O
U
MW-14 Chromium
> u 5-0 a > c ILaO +� > u ' -0. a
v v a 0 D M � M V M v
'
2 o��� Q z Q 2 Q 2 o -'n
O
Date
MW-14 Cobalt
41 Ql O O �--� N N M M � Lft V1 lD lD I� n 00 Q1 Q1
O O c-I r-I r-I r-I r-I r-I .—I .-i c-I r-I ci rl ci rl ri rl ri
� O M p � Ii to Q Z z5 M Q M O M p � Ii cn
Date
MW-14 Vanadium
M M O O ci N N M M -Zt Ln M lD lD II r� w M M
O O r-I r-I ci rl ri c-I rl ri rl ri rl ri rl ri ci rl ri
. r,
Date
'Mit 1 Page 6 of 18 Alternate Source Demonstration

Concentration Trend Graphs
70
c' 60
O
50
L
Q. 40
30
a
c 20
+1
I° 10
c
u 0
c
O
U
25
c
O 20
a 15
L
a 10
c
O
+1 5
M
L
u 0
c
O
U
180
- 160
0 140
120
Q-100
80
c
60
40
c
20
u 0
c
O
U
MW-15 Chromium
Dissolved Chromium
M M O O -1 N N M M 'zt Ln M lD lD n n W M M
-U >'U Q i > C IL bA i +' ? co U ' Q
CO
N N O- O O 7 N
0 U? Q Z 7 Q O 0 �i cn
Date
MW-15 Cobalt
Dissolved Cobalt
Ol Ol O O r-I N N M M � L1'1 �!1 lD lD I� r` 00 Ol Ol
O O
L aU ' -0 Q > C C GA i +' ? U ' -0 Q
2 0 o �� a z;M a o o; �-
Date
MW-15 Vanadium
nissnlvPd Van;;dium
M M O 0-1 N N M M� Ln Ln lD LO r� r, w M M
+> U -0 a > c c M a
o o °1 a z° ;7 7; a o o °1 N
Date
'Mit 1 Page 7 of 18 Alternate Source Demonstration

Concentration Trend Graphs
16
14
O
12
v 10
a
r $
L
6
0 4
f6 2
c
U 0
c
O
U
25
c
O 20
Z
a 15
N
41
L
Q 10
O
41 M
5
L
u 4-1
O
U
MW-15D Chromium
M M O O r-I N N M M 1:T M Ln 1.0 lO I, r- w M M
O O ri ri ri ri ri ri ri ri ri ri ri ri ri ri ri ri ri
L ? U U Q
oo�a°,a Muma); �zri rI ri r1-' -Iri r-I r1 r1
Date
MW-15D Vanadium
Ol M O O -1 N N M M Ln In l0 l0 I- n w M M
O O c-I r-I r-I r-I r-I r-I r-I ri -i c-I ri r-I r-I r-I r-I ri ri
U ' -0 Q - i C C w L - %` U ' -0 Q
I�C? 1 Ln Q Z — - Q Opr
ri ri ri r1 � ri ri Il cn
�, � ri r� ri ri ri
Date
'Mit 1 Page 8 of 18 Alternate Source Demonstration

Concentration Trend Graphs
60
c 50
40
v
a
r 30
L
Q
., 20
O
f0 10
L
it
U 0
c
O
U
35
c 30
0
25
L
O, 20
H
m 15
0
c 10
+2
f6 5
41
U 0
C
O
U
140
r- 40
0
+1
TO 20
c
u 0
O
O
U
MW-16 Chromium
Dissolved Chromium
MW-16 Cobalt
Ql M O O -1 N N M M Ln Ln l0 1.0 r- r, w M M
O O c-I ci rl ri rl ri rl rl c-I c-I .-I rl ci ci rl ri rl
-0 Q L i C :� L �"' %` U ' -0 Q
2 O 2 QMuroa), LL Ln Q zwwno„ Q 2 O 2 Q � LL Ln
7
Date
MW-16 Vanadium
Mccnlvcrl \/nnnrliiim
Ql M O O N N M M t Ln Ln lD lD r, n W M M
O O ci ci .-I c-I c-I r-I ci c-I c-I ci rl ci ci ci rl ci rl
i U
cM O c6 a) N N O- 0 M 7 M U f6 N w N
rl ri
Date
'Mit 1 Page 9 of 18 Alternate Source Demonstration

Concentration Trend Graphs
40
35
0
30
v 25
0.
20
L
c�
15
0 10
+1
r
5
c
u 0
C
O
U
FA
c 6
0
5
L
c. 4
Ln
r
0 3
0.
c 2
0
+1
f6 1 L
it
u 0
C
O
U
80
c 70
0
60
50
a
40
L
Q 30
0 20
41 10
c
u 0
C
O
U
MW-17 Chromium
MW-17 Cobalt
Ql Ql O O �--� N N M M � V1 i11 l6 l6 I� n W Ol Ql
U T U 5 -0 Q > C C b7A i +' >- U � a
N N O 7 f0 u
C? 7 7 N
Q C?
Date
MW-17 Vanadium
Dissolved Vanadium
01 M O O -I N N M M ::I, Ln Ln lO LD I, n w M M
O O r-I ri r-i .--i r-i r-i r-i r-i -i r-I r-i ri ri r-i ri ri
i ++ >, U -0 Q - > C C w +' T U -0 Q
O 0 � 4- cn Q z 7 7 Q O 0 � LL cn
ri r�
ri ri
Date
9Mith Page 10 of 18 Alternate Source Demonstration

Concentration Trend Graphs
25
c
0 20
M
L
a 15
L
Q 10
0
5
L
u 0
c
0
U
MW-17D Vanadium
M M O O 1-1 N N M M't in M lD l0 n n M M M
-0 Q
O 0 - ii WO-ODM
z Q O p ii cij
Date
midi! Page 11 of 18 Alternate Source Demonstration

Concentration Trend Graphs
140
c 120
0
100
L
Q. 80
41
a 60
a
c 40
r
TO 20
41
U 0
c
O
U
c 50
40
v
a
Y 30
L
Q
20
_
O
L 10
c
U 0
C
O
U
140
c 120
0
100
a. 80
41
a 60
a
c 40
:W
i 20
+1
c
U 0
C
O
U
MW-18 Chromium
Ql Ql O O �--� N N M M � u1 1n lD l0 I� n W 01 O1
i b -0 a L > IL C tin % U -0 IZ
O i to Q z 7 7 Q O 1i of
ri ri r� r�
Date
MW-18 Cobalt
Dissolved Cobalt
M M O O 1-1 N N M M ::I, 1n V1 l0 lD n n W M M
O O ri ri
L o++ T ri ri ri o ri ri ri
U -0 CL > C C w -0 ?
0) a ° LL �
Date
MW-18 Vanadium
Dissolved Vanadium
M M O O _i N N M M v 1n Ln lD lD 1I r,w M M
0 O r-1 ri r I r-I r I ri ri r-1 ri ri c-I ri ri ri ri r I r I
— > U -0 a > C C w- +'-� > b -0 a
ri 7 7r
r1 ri � ri ri ri ri ri r-1 ri r-1 � c-1 � ri ri r-1
Date
'Mit 1 Page 12 of 18 Alternate Source Demonstration

Concentration Trend Graphs
16
14
O
12
10
a
8
L
a 6
0 4
f° 2
c
0
c
O
U
MW-19 Vanadium
Ql M O O -1 N N M M Ln M LD lO r- n W M M
-0 Q > C C t o -0 Q
O � 9 Li to Q z Q O 9 Li to
A
� r-1 r-I ci � rl ri r� i-1 A r-j ri ri
Date
'Mit 1 Page 13 of 18 Alternate Source Demonstration

Concentration Trend Graphs
70
c 60
O
50
L
c. 40
V)
i+
a 30
a
c 20
r
L 10
41
c
v 0
c
O
U
90
80
C
70
60
v
°- 50
N
40
a
c
30
° 20
ra
c
10
U 0
C
O
U
180
.-.160
C
0 140
-0120
a
Q-100
V)
a 80
a
C
60
40
M
c
20
u 0
c
O
U
MW-20 Chromium
Dissolved Chromium
Ol Ol O O r-I N N M M -* M Ln l0 l0 I, r, W M M
O O r-I r-I r-I r-I r-I r-I r-I r-I r-I r-I r-I r-I r-I r-I r-I r-I r-I
L U ' Q L i 1_ i �", U ' Q
o c LL N Q 7 f6 7 cM U c 0 LL (n
G c r-1 Z Q G c ri
Date
MW-20 Cobalt
Ol T O O -1 N N M M Ict In In l0 l0 I, n w M M
O O c-I ri r-I r-I r-I r-I r-I r-I r-I c-I r-I r-I r-I r I r-I -1 -1
O p LL cn Q Z Q O p 7 LL cn
ri "
r1 ri ri ri r1 �I ri r-I ri ri ri ri ri
Date
MW-20 Vanadium
Ol Q1 O O ri N N M M � l!'1 In l0 l0 I� � 00 O1 Ol
O O ri ri ri ri ri ri ri ri ri ri r-I ri ri ri ri ri ri
L U i -0 0-L i C C � L �", i` U ' -0 Q
r�
Date
'Mit 1 Page 14 of 18 Alternate Source Demonstration

Concentration Trend Graphs
14
c' 12
0
14
12
0
50
45
c
0 40
35
CL 30
41 25
L
Q 20
c 15
0
m
10
5
u 0
C
O
U
MW-21 Chromium
M M O 0-1 N N M M't Ln in t-0 k-0 � r� w M M
O O ri
UrOQ)-0 Q
O 0 WWO-ODM
z Q O 2 r?, ii
c-1 ri ri ri ri c-1 c-1 ri r-1 ri
Date
MW-21 Cobalt
Dissolved Cobalt
O1 � O O ri N N M M � l!'1 111 l0 l0 I� n W 01 al
O O r. r. r. r. r. r. r. r. r. r. r. r. ri ri ri ri ri
L i` U -0 Q L i C r- tao L �"� i` U ' -0 Q
c-I c-I
Date
MW-21 Vanadium
M M O O ri N N M M 1:T M Ln l0 l0 r� r- w M M
O O ri r-i r-i r-i r-i r-i r-i ri r-i r-i r-i r-i r-i r-i ri r-i r-i
L U U 75
i -0 Q L i c C w U ' -0 Q
ri r1 ri ri r4 r� ri r-I - ri ri r-I ri
Date
'Mit 1 Page 15 of 18 Alternate Source Demonstration

Concentration Trend Graphs
0
MW-25 Cobalt
Ol Ol O O r-I N N M M � l!'1 L!1 l0 l0 I� � 00 Q1 O1
L ++ >U Muma)-0 0-L > C C Oo L +' T U MUMW-0 Q
O O 7 LL N Q Z —' Q O 7 LL (n
ci c-I
Date
MW-25 Vanadium
16
c
14
Dissolved
Vanadium
°
=
12
(Vanadium
v
10
a
8
—
Q
6
0
4
+1
Y
2
c
U
0
0
Gl
O
O
r-I N
N
M M
Ln
V) l0
l0
I-
n
00 0) 0)
U
i
++
>`
U
-0
Q
i >
C C
Oo i
+''
>`
U
aj
Q
O
p
LL
N
Q Z
Q
O
p
7 LL cn
r-I r-I
_j
Date
J
'Mich Page 16 of 18 Alternate Source Demonstration

Concentration Trend Graphs
Ca
c 25
20
a
a
Y 15
L
Q
10
O
0 5
L
U 0
c
O
U
Of
c 70
O
60
50
a
40
L
M
30
0 20
41 10
c
U 0
C
O
U
MW-25D Cobalt
Dissolved Cobalt
m m O O c-I N N M M lzt Lo Ln to lD r� n m m m
O O -1 -1 r-I -i r-I i r-i r-I -4 -4
M U to N N N O- O O (O 7 M U m N - N N
O 2 9 LL N Q z — - Q � 2 LL O 0 v?
r-I
Date
MW-25D Vanadium
Ql Ql O O -1 N N M M -z3' Ln Ln lD lD I, r� W M M
Q LL N
--I
Date
'Mit 1 Page 17 of 18 Alternate Source Demonstration

Concentration Trend Graphs
25
c
O 20
Z
L
a, 15
a
VI
i+
L
M 10
O
5
4-1
v 0
u
r-
O
u
45
40
r-
35
30
L
a 25
20
Q 15
c
c 10
f° 5
c
u 0
r-
O
U
M
70
0
60
50
a
40
L
Q, 30
0 20
41
14 10
v 0
u
c
O
u
MW-26 Chromium
Dissolved Chromium
m O O r-I N N m m V1 u11 w w r, n w M M
+� >, u -0 a fl> c c tin +� u -0 a
O M v v a1 - O = n3 7 M u M W
�ii �n
Date
MW-26 Cobalt
ni—I—A r-kh it
MW-26 Vanadium
> u -0 a > c C w +� > u a
0)a) v Q- O Z) (U � u (0 v
Date
'Mit 1 Page 18 of 18 Alternate Source Demonstration