MO-4253_13338_CA_MRP_20191024_Groundwater Monitoring Report

A ECOM Imagined.
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October 24, 2019
North Carolina Department of Environmental Quality (NCDEQ)
Division of Waste Management (DWM)
Underground Storage Tanks (UST) Section
610 East Center Avenue Suite 301
Mooresville, North Carolina 28115
Attention: Ms. Trudy Beverly
Re: Groundwater Monitoring Report
Kloeckner Metals Corporation
UST Incident # 13338
624 Black Satchel Drive
Charlotte, North Carolina 28216
Dear Mr. Morris:
AECOM Technical Services of North Carolina, Inc. (AECOM), formerly legacy URS Corporation of
North Carolina, Inc., is pleased to present this report for groundwater monitoring activities
conducted on September 19 and 20, 2019 to the NCDEQ UST Section on behalf of Kloeckner
Metals Corporation (Kloeckner). The Kloeckner facility is located at 624 Black Satchel Drive in
Charlotte, Mecklenburg County, North Carolina (site). A map depicting the location of the site is
provided as Figure 1, and a map depicting the site layout is included as Figure 2.
1.0 BACKGROUND
Based on previous site information provided to AECOM by Kloeckner, formerly Macsteel
Service Centers USA (Macsteel), the site was formerly operated by Edgcomb Metals Company
(Edgcomb). Edgcomb conducted similar site operations as Kloeckner prior to Macsteel's
acquisition of the site in 1995.
UST Incident #13338 has been assigned to the site due to the presence of petroleum
hydrocarbons in the soil and groundwater. The NCDEQ UST Section has classified the site as
`Intermediate Risk'; however, no cleanup or remediation activities have been issued for the site.
A total of six USTs and three oil/water (o/w) separators were used onsite for storage of the
following:
➢ Two 1,000-gallon USTs for storage of #2 fuel oil;
➢ One 1,000-gallon UST for storage of used oil;
➢ Three 1,000-gallon o/w separators;
➢ One 9,500-gallon UST for storage of diesel fuel;
➢ One 10,000-gallon UST for storage of diesel fuel; and,

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NCDEQ
October 24, 2019
Page 2
➢ One 20,000-gallon UST originally used for storage of diesel fuel, and then for storing
heating oil.
According to historical documents identified during a file review, all USTs and o/w separators
were removed between August 1994 and September 1995, with associated soil and groundwater
assessment activities initiated in March/April of 1995.
August 1994
On August 8-11, 1994, SPATCO Environmental (SPATCO) conducted UST removal and soil
excavation activities associated with the former #2 fuel oil USTs, used oil UST, three o/w
separators and the 9,500-gallon/10,000-gallon diesel USTs, with the results of these activities
reported in the Tank Closure Report, submitted to NCDEQ by SPATCO on August 29, 1994.
According to the Tank Closure Report, soil samples were collected at the base of each UST and
o/w separator area and analyzed for petroleum hydrocarbons, halogenated solvents and/or oil &
grease composition. The Tank Closure Report also included recommendations to investigate the
20,000-gallon heating oil UST.
April 1995
A release in the area of the 20,000-gallon heating oil tank area was discovered in August of 1994
during the closure of three USTs and three o/w separators, with notification to NCDEQ in
February 1995. Assessment activities associated with this UST were initiated in March 1995,
along with a groundwater assessment in the area of the former #2 fuel oil USTs, with
groundwater concentrations exceeding applicable North Carolina 15A NCAC 2L.0202
groundwater quality standards (2L Standards). Details of this investigation are discussed in the
Initial Assessment Report, submitted to NCDEQ by SPATCO, in April of 1995.
September 1995
According to Macsteel correspondence to NCDEQ, the 20,000-gallon heating oil UST was
removed in September 1995. According to NCDEQ records, and verification by MacSteel in
correspondence dated June 2004, the 20,000-gallon heating oil UST was also previously used to
store diesel fuel. Soil samples were collected at the base of the UST pit and near the pump
transfer piping and elbows. A water sample was collected from the perched water in the base of
the tank pit, however, no water sample was collected from the surficial groundwater aquifer.
Details of the UST removal and associated sample results are discussed in the Tank Closure
Report, submitted by SPATCO to NCDEQ in September 1995.
November 1995
In November 1995, SPATCO submitted a Comprehensive Site Assessment Report (CSA)
discussing previous and additional soil/groundwater assessment activities, including the
installation and sampling of the groundwater monitoring well network (MW-1 through MW-8,

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NCDEQ
October 24, 2019
Page 3
and DW-1) across the site. The existing monitoring well network is shown on Figure 2. The
report also included receptor survey data and hydrogeologic data collected during the CSA.
January 1996
Following completion of the CSA, SPATCO submitted a Corrective Action Plan (CAP) to the
NCDEQ UST Section on January 5, 1996, which summarized assessment and monitoring
activities to date and an evaluation of remediation alternatives. Monitored natural attenuation
(MNA) was found to be the preferred remedial alternative for the site. Final approval for MNA
was received from NCDEQ in a letter dated March 8, 1996.
May 2003
In May of 2003, Macsteel received a letter from the NCDEQ UST Section in response to results
of the Groundwater Monitoring Report, received on May 1, 2003. In the letter, NCDEQ directed
Macsteel to initiate free product recovery activities at monitoring well MW-1, due to the
detection of light, non -aqueous phase liquid (LNAPL or "free product") at a thickness greater
than 0.01 feet. AECOM was unable to locate any free product recovery reports associated with
the site prior to 2003. Upon further correspondence between Macsteel and NCDEQ in 2007,
Macsteel was informed that only activities associated with the detection of 1/4-inch thickness of
LNAPL would be under the direction of NCDEQ. AECOM was later informed by Mr. Brett
Morris of NCDEQ via telephone conversation on March 30, 2011 that directed activities would
commence upon detection of LNAPL greater than 1/8-inch thickness.
November 2010
In November of 2010, AECOM conducted additional soil sampling, recovery well installation,
and well improvement activities onsite. The intent of soil sampling activities was to fill data
gaps from previous assessment activities to meet the current requirements of the NCDEQ UST
Program Guidelines for Assessment and Corrective Action (NCDENR, July 15, 2008). Soil
samples collected from each boring in the former o/w separator area were analyzed for volatile
organic compounds (VOCs), semi -volatile organic compounds (SVOCs), polynuclear aromatic
hydrocarbons (PAHs), volatile and extractable petroleum hydrocarbons (VPH/EPH),
polychlorinated biphenyls (PCBs), chromium, and lead. Samples collected near the former #2
fuel oil UST were analyzed for VOCs, PAHs, and VPH/EPH compounds. Samples collected in
the former heating oil UST area were analyzed for PAHs, EPH/VPH, and light petroleum VOCs.
Based on the results of soil sampling activities, the presence of petroleum hydrocarbons and lead
were detected at concentrations below their respective soil -to -water maximum contaminant
concentration (MSCC) levels. Chromium was detected in soil samples collected from the former
used oil and o/w separator area at concentrations above the associated soil -to -water MSCC.
The intent of the installation of a recovery well was to provide an extraction point for a future
Aggressive Fluid/Vapor Recovery (AFVR) event. Recovery well RW-1 was installed in the

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Ms. Trudy Beverly
NCDEQ
October 24, 2019
Page 4
vicinity of monitoring well MW-1, located in the former heating oil UST area. LNAPL was not
measured initially upon installation of recovery well RW-1.
The results of the November 2010 soil assessment, recovery well installation, and well
improvement activities are documented in the April 5, 2011 Additional Site Assessment Report,
prepared by AECOM.
February 2011
Following installation of recovery well RW-1, AECOM conducted an AFVR event to aid in mass
removal of free product and petroleum -affected soil vapor associated with the former fuel oil
UST area. The AFVR was conducted simultaneously at monitoring well MW-1 and recovery
well RW-1 for a total of 8 hours to remove groundwater and soil vapors from the subsurface.
The AFVR event removed a total of 397 gallons of free product/groundwater. The results of the
February 2011 AFVR event are documented in the April 5, 2011 Additional Site Assessment
Report, prepared by AECOM.
September 2012
In accordance with the recommendations provided by AECOM in the April 5, 2011 Additional
Site Assessment Report, an additional groundwater monitoring event was conducted in
September 2012 for the site. All site monitoring wells were sampled for the established site
constituents of concern (COCs). The details of these activities were provided to NCDEQ in the
May 21, 2013 Additional Site Assessment Report, prepared by AECOM. As discussed in the
May 21, 2013 report, COCs were detected in several of the monitoring wells above their
associated groundwater and/or surface water standards.
In addition to summarizing the details of the September 2012 groundwater monitoring event, the
May 21, 2013 report included an update to the Limited Site Assessment (LSA) forms to satisfy
the requirements of the NCDEQ UST Guidelines for Assessment and Corrective Action, dated
October 1, 2012. On April 28, 2011, AECOM received email correspondence from Mr. Brett
Morris of the NCDEQ UST Section requesting that AECOM complete a Risk Classification and
Land Use Classification form (outlined in the LSA Guidelines within the NCDEQ UST Section),
as the age of the site pre -dates the LSA requirements. Based on the Risk Classification and Land
Use Classification form, it was determined that the site should remain Intermediate Risk due to
the presence of surface water within 500-feet of the former USTs. In addition, AECOM
recommended that the site should have a land use classification of Industrial/Commercial.
February 2013
In accordance with the recommendations provided by AECOM in the April 5, 2011 Additional
Site Assessment Report, an additional AFVR event was conducted onsite to continue with mass
removal of COCs. On February 27, 2013, the AFVR was conducted simultaneously at
monitoring well MW-1 and recovery well RW-1 for a total of 8 hours. The AFVR event

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NCDEQ
October 24, 2019
Page 5
removed a total of 303 gallons of free product/groundwater. The results of the February 2013
AFVR event are documented in the May 21, 2013 Additional Site Assessment Report, prepared
by AECOM. Based on the minimized detection of measurable free product in recovery well
RW-1, AECOM recommended the implementation of a free product recovery program for the
site, which would include passive methods such as the use of absorbent socks.
August 2013
In accordance with the recommendations provided by AECOM in the May 21, 2013 Additional
Site Assessment Report, an additional groundwater monitoring and free product recovery event
was conducted for the site. On August 1, 2013, AECOM conducted groundwater sampling
activities at the site. All site monitoring wells were sampled for the established COCs associated
with the site. Additionally, absorbent socks were installed in monitoring well RW-1 as a passive
means of free product recovery. The details of these activities were provided to NCDEQ in the
November 13, 2013 Groundwater Monitoring and Free Product Recovery Report, prepared by
AECOM. As discussed in the November 13, 2013 report, COCs were detected in several of the
monitoring wells above their respective 2L Standards.
September 2013 and March 2014 —Free Product Measurement/Recovery
In accordance with the recommendations provided by AECOM in the May 21, 2013 Additional
Site Assessment Report, a semi-annual free product monitoring and recovery program was
initiated. On September 4, 2013 AECOM conducted the first free product gauging event.
Monitoring wells MW-1, MW-2, MW-3, MW-4, and, recovery well RW-1 were gauged for
depth to free product and depth to groundwater. During the September 4, 2013 gauging event,
0.04 feet of free product was measured in recovery well RW-1. Subsequently, two absorbent
socks were placed in recovery well RW-1 to passively recover free product in the well. On
March 7, 2014, AECOM conducted the second free product gauging event. No free product was
measured in any monitoring or recovery wells gauged during this event. AECOM replaced the
absorbent socks in recovery well RW-1.
September 2013 — Background Soil Sampling
In accordance with the recommendations provided by AECOM in the November 13, 2013
Groundwater Monitoring and Free Product Recovery Report, AECOM conducted background
soil assessment activities onsite to determine whether chromium is naturally occurring at the site.
On September 12, 2013, AECOM collected soil samples for analysis of chromium from five
locations onsite which had no reported historical site operations or fuel storage. Analytical
results indicated a relatively even distribution of chromium across the site at concentrations
above the associated Soil -to -Water MSCC. AECOM and Kloeckner concluded that chromium is
naturally occurring onsite and recommended that chromium be removed from the list of site's
COCs.

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Ms. Trudy Beverly
NCDEQ
October 24, 2019
Page 6
September 2014
In accordance with the recommendations provided by AECOM in the May 21, 2013 Additional
Site Assessment Report, an additional groundwater monitoring and free product recovery event
was conducted at the site. On September 29, 2014, AECOM conducted groundwater sampling
activities at the site. All site monitoring wells were sampled for the established COCs associated
with the site. The details of these activities were provided to NCDEQ in the January 9, 2015
Groundwater Monitoring and Free Product Recovery Report, prepared by AECOM. As
discussed in the January 9, 2015 report, COCs were detected in several of the monitoring wells
above their respective 2L Standards.
September 2015
In accordance with the recommendations provided by AECOM in the January 9, 2015
Groundwater Monitoring and Free Product Recovery Report, an additional groundwater
monitoring and free product recovery event was conducted at the site. On September 23, 2015,
AECOM conducted groundwater sampling activities at the site. All site monitoring wells were
sampled for the established COCs associated with the site. The details of these activities were
provided to NCDEQ in the May 3, 2016 Groundwater Monitoring Report, prepared by AECOM.
As discussed in the May 3, 2016 report, COCs were detected in several of the monitoring wells
above their respective 2L Standards.
September 2016
In accordance with the recommendations provided by AECOM in the May 3, 2016 Groundwater
Monitoring Report, an additional groundwater monitoring event was conducted at the site. On
September 20, 2016, AECOM conducted groundwater sampling activities at the site. Select site
monitoring wells were sampled for the established COCs associated with the site. The details of
these activities were provided to NCDEQ in the January 23, 2017 Groundwater Monitoring
Report, prepared by AECOM. COCs were detected in several of the monitoring wells above
their respective 2L Standards.
October 2017
In accordance with the recommendations provided by AECOM in the January 23, 2017
Groundwater Monitoring Report, an additional groundwater monitoring event was conducted at
the site. On October 2, 2017, AECOM conducted groundwater sampling activities at the site.
Select site monitoring wells were sampled for the established COCs associated with the site. The
details of these activities were provided to NCDEQ in the January 30, 2018 Groundwater
Monitoring Report, prepared by AECOM. COCs were detected in several of the monitoring
wells above their respective 2L Standards.

/� _COM Imagined.
/�+�E Delivered.
Ms. Trudy Beverly
NCDEQ
October 24, 2019
nrtnhor M 1 R
Page 7
In accordance with the recommendations provided by AECOM in the January 30, 2018
Groundwater Monitoring Report, an additional groundwater monitoring event was conducted at
the site. On October 12, 2018, AECOM conducted groundwater sampling activities at the site.
Select site monitoring wells were sampled for the established COCs associated with the site. The
details of these activities were provided to NCDEQ in the January 11, 2019 Groundwater
Monitoring Report, prepared by AECOM. COC's were detected in several of the monitoring
wells above their respective 2L Standards.
0XIN1 K9] 9 we]7 ►1
2.1 Groundwater Monitoring Activities
On September 19 and 20, 2019, AECOM conducted groundwater sampling activities at the site.
The details of these activities are provided below.
Groundwater Elevation Data
Water level measurements were collected and documented from all onsite monitoring and
recovery wells prior to purging and sampling on September 19, 2019. An electronic water level
meter/interface probe (meter accuracy of +/-0.01 feet) was used to collect depth -to -water and
depth -to -product measurements from the top of the well casing. The groundwater elevation data
was used to prepare a potentiometric surface contour map of the surficial aquifer which is
presented as Figure 3.
As indicated on Figure 3, surficial groundwater flow is to the southwest toward the tributary of
Stewart Creek, which is located to the west of the site. The approximate hydraulic gradient as
measured from monitoring well MW-4 to MW-2 is 0.019 ft/ft. The September 19, 2019
groundwater gauging data is summarized in Table 1. A groundwater sample could not be
collected from monitoring well MW-1 due to an insufficient amount of groundwater available for
sample collection (less than 6 inches).
Groundwater Sampling Methods and Procedures
AECOM personnel purged each well a minimum of three well volumes, or until no additional
groundwater could be recovered from the monitoring wells. A new, bottom -loading polyethylene
bailer and nylon rope was used to purge each monitoring well. No purging equipment was
allowed to contact the ground or other foreign surfaces prior to sample collection. Purge water
was discharged on the ground around each respective well intended for sampling per NCDEQ
UST guidelines.
Once each well intended for sampling had been purged and allowed sufficient time for aquifer
recharge, AECOM collected a groundwater sample for select laboratory analysis. Monitoring

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Ms. Trudy Beverly
NCDEQ
October 24, 2019
Page 8
wells (MW-2, MW-3, MW-4, and DW-1) and recovery well RW-1 were sampled for analysis of
benzene, toluene, ethylbenzene, total xylenes (BTEX), methyl tert-butyl ether (MTBE),
chlorobenzene, isopropylbenzene, 1,2-dichlorobenzene, 1,3-dichlorobenzene, and 1,4-
dichlorobenzene via SM 6200B, SVOCs via United States Environmental Protection Agency
(EPA) Method 625, Massachusetts Department of Environmental Protection (MADEP)
EPH/VPH, and total/dissolved lead via EPA Method 200.7. A duplicate sample was collected
from DW-1 for quality assurance/quality control. Samples were shipped to Pace Analytical
Services (Pace) in Huntersville, North Carolina in a chilled and properly packed sample cooler
for analysis. During sample collection, AECOM recorded water quality parameters pH,
conductivity, temperature, dissolved oxygen, turbidity, and oxidation-reduction potential from
each site well by use of a Yellow Springs Instruments (YSI) PRO+ water quality meter.
Groundwater Sample Analytical Results
Based on the laboratory analytical results provided by Pace, various COCs were detected in
groundwater samples collected at the site. Water quality measurements and groundwater
analytical results are summarized in Table 2, Table 3, and Table 4. A map depicting
concentrations of detected COCs in samples collected from monitoring wells is provided as
Figure 4.
Concentrations of EPH (C11-C22 Aromatics) and EPH (C9-C18 Aliphatics) were detected above
their respective 2L Standards in samples collected from recovery well RW-1.
VOCs such as benzene, isopropylbenzene, methyl tert-butyl ether (MTBE), and naphthalene were
detected in the groundwater collected from RW-1. Naphthalene is the only VOC detected in
exceedance of the 2L Standard in RW-1. SVOCs such as 2-methylnaphthalene, phenanthrene,
and pyrene were detected in the groundwater sample collected from RW-1; however, 2-
Methy1naphthalene is the only SVOC that was detected in exceedance of the 2L Standard.
Lead was detected below the 2L Standard in groundwater samples collected from MW-3 and
MW-4. No other compounds were detected above their respective 2L Standards in groundwater
samples collected from onsite wells. pH was measured at a value lower than the established 2L
Standard pH range in samples collected from monitoring wells MW-2 and RW-1. The analytical
laboratory report associated with the September 19 and 20, 2019 groundwater monitoring event
is provided as Appendix A.

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Ms. Trudy Beverly
NCDEQ
October 24, 2019 Page 9
3.0 CONCLUSIONS AND RECOMMENDATIONS
Based on the sample results discussed above, EPHs (C11-C22 Aromatics and C9-C18
Aliphatics), naphthalene, and 2-Methylnaphthalene were detected above their respective 2L
Standard in the groundwater sample collected from recovery well RW-1. Benzene,
isopropylbenzene, MTBE, phenanthrene, and pyrene were detected above the laboratory method
detection limit (MDL) but below their respective 2L Standards in recovery well RW-1. pH was
measured at a value lower than the established 2L Standard pH range in samples collected from
monitoring wells MW-2 and RW-1. Lead was detected below the 2L Standard in two wells
(MW-3 and MW-4). No other COCs were detected above the MDL during the September 2019
groundwater monitoring event.
Based on the September 2019 groundwater results, AECOM recommends continuing limited
groundwater monitoring for natural attenuation at the site. Monitoring wells MW-1, MW-2,
MW-3, MW-4, DW-1, and recovery well RW-1 should continue to be sampled for analysis of
VOCs, MADEP EPH/VPH, SVOCs, and total/dissolved lead. The next groundwater monitoring
event is scheduled for September 2020.
If you have any questions or require additional information, please feel free to contact
Christopher Rocco at 704-553-6150 or [e-mail].
Sincerely,
AECOM TECHNICAL SERVICES OF NORTH CAROLINA, INC.
Christopher M. Rocco
Project Manager
SEAL
2606
"••,'�i,9 !FQL OG\ �"' QQ • ....... ....
cl�E"egL ' , SMITH
Coleman S. Marchin, P.G. �'"����rri"'
Professional Geologist (NC #2606)

TABLES

Table 1
Well Construction Details
and Depth to Water Measurements
September 19, 2019
Kloeckner Metals Facility
624 Black Satchel Drive
Charlotte, North Carolina
Monitoring Well
Identification
Date Installed
TOC Elevation
(ft./msl)
Measured
Total Depth (ft
btoc)
Diameter
(inches)
Screen
length (ft)
Depth to
Product
Measurement
(ft btoc)
Depth to Water
Measurement
(ft btoc)
Groundwater
Elevation
(ft./msl)
MW-1
3/20/1995
765.37
24.20
2
15
--
23.72
741.65
MW-2
9/12/1995
766.08
38.04
2
15
--
27.30
738.78
MW-3
9/12/1995
764.67
38.03
2
15
--
24.46
740.21
MW-4
9/12/1995
764.96
30.49
2
15
--
24.1
740.86
MW-5
9/13/1995
764.21
40.06
2
15
--
26.8
737.41
MW-6
9/13/1995
763.88
10.07
2
5
--
4.45
759.43
MW-7
9/13/1995
764.40
28.69
2
15
--
21.21
743.19
MW-8
9/13/1995
763.78
35.17
2
15
--
26.64
737.14
DW-1
9/13/1995
765.49
53.7
2
2.5
--
25.16
740.33
RW-1
11/23/2010
765.72
40.00
4
35
--
25.16
740.56
Notes:
TOC = top -of -casing
-- = Product not detected
ft/msl = feet above mean sea level
btoc = below top of casing

Table 2
Analytical Results - Volatile Organic Compounds, Extractable Petroleum Hydrocarbons (EPH)
and Volatile Petroleum Hydrocarbons (VPH)
September 19, 2019
Kloeckner Metals Facility
624 Black Satchel Drive
Charlotte, North Carolina
NC 2L
Groundwater
Standard*
MW-1
MW-2
MW-3
MW-4
MW-5
MW-6
MW-7
MW-8
RW-1
DW-1
DUP-1
Analyte
Volatile Organic Compounds (SM 620013)
1,2-Dichlorobenzene
20
NS
ND
ND
ND
NS
NS
NS
NS
ND
ND
ND
1,3-Dichlorobenzene
200
NS
ND
ND
ND
NS
NS
NS
NS
ND
ND
ND
1,4-Dichlorobenzene
6
NS
ND
ND
ND
NS
NS
NS
NS
ND
ND
ND
Benzene
1
NS
ND
ND
ND
NS
NS
NS
NS
0.33J
ND
ND
Chlorobenzene
50
NS
ND
ND
ND
NS
NS
NS
NS
ND
ND
ND
Isopropyl benzene Cumene)
70
NS
ND
ND
ND
NS
NS
NS
NS
2.1
ND
ND
Methyl Tert-but I Ether
20
NS
ND
ND
ND
NS
NS
NS
NS
3.2
ND
ND
Naphthalene
6
NS
ND
ND
ND
NS
NS
NS
NS
8.9
ND
ND
Toluene
600
NS
ND
ND
ND
NS
NS
NS
NS
ND
ND
ND
Eth (benzene
600
NS
ND
ND
ND
NS
NS
NS
NS
ND
ND
ND
Xylenes (total)
500
NS
ND
ND
ND
NS
NS
NS
NS
ND
ND
ND
Volatile Petroleum Hydrocarbons MADEP VPH
VPH C5-C8 Aliphatics
400
NS
ND
ND
ND
NS
NS
NS
NS
ND
ND
ND
VPH C9-C10 Aromatics)
200
NS
ND
ND
ND
NS
NS
NS
NS
190
ND
ND
VPH C9-C12 Aliphatics)
700
NS
ND
ND
ND
NS
NS
NS
NS
236
ND
ND
Extractable Petroleum Hydrocarbons MADEP EPH
EPH(Cl 1-C22 Aromatics
200
NS
ND
ND
ND
NS
NS
NS
NS
1,450
ND
ND
EPH C19-C36 Aliphatics)
10,000
NS
ND
ND
ND
NS
NS
NS
NS
217
ND
ND
EPH C9-C18 Aliphatics)
700
NS
ND
ND
ND
NS
NS
NS
NS
1,000
ND
ND
Notes:
All Samples reported in micrograms per liter (µg/L)
= Groundwater Quality Standards (15A NCAC 2L Groundwater Standards, updated April 1, 2013)
Bold Sample Result exceeds NC 2L Groundwater Standard
Bold Sample Result exceeds laboratory method detection limit (MDL)
ND = Not detected above associated method detection limit (MDL)
NS = Not Sampled
DUP-1 collected from DW-1
Note: DUP-1 listed in the field notes and on laboratory chain of custody as DW-1a.

Table 3
Analytical Results - Semi -Volatile Organic Compounds (SVOCs)
Kloeckner Metals Facility
624 Black Satchel Drive
Charlotte, North Carolina
NC 2L
Groundwater
Standard*
MW-1
MW-2
MW-3
MW-4
MW-5
MW-6
MW-7
MW-8
RW-1
DW-1
DUP-1
Analyte
Polynuclear Aromatic Hydrocarbons (PAHs) (EPA Method 625.1)
Acenaphthene
80
NS
ND
ND
ND
NS
NS
NS
NS
ND
ND
ND
Acenaphthylene
200
NS
ND
ND
ND
NS
NS
NS
NS
ND
ND
ND
Anthracene
2000
NS
ND
ND
ND
NS
NS
NS
NS
ND
ND
ND
Benzo(a)anthracene
0.05
NS
ND
ND
ND
NS
NS
NS
NS
ND
ND
ND
Benzo a pyrene
0.005
NS
ND
ND
ND
NS
NS
NS
NS
ND
ND
ND
Benzo(b)fluoranthene
0.05
NS
ND
ND
ND
NS
NS
NS
NS
ND
ND
ND
Benzo ,h,i perylene
200
NS
ND
ND
ND
NS
NS
NS
NS
ND
ND
ND
Benzo(k)fluoranthene
0.5
NS
ND
ND
ND
NS
NS
NS
NS
ND
ND
ND
Chrysene
5
NS
ND
ND
ND
NS
NS
NS
NS
ND
ND
ND
Dibenzo(a,h)anthracene
0.005
NS
ND
ND
ND
NS
NS
NS
NS
ND
ND
ND
Fluoranthene
300
NS
ND
ND
ND
NS
NS
NS
NS
ND
ND
ND
Fluorene
300
NS
ND
ND
ND
NS
NS
NS
NS
ND
ND
ND
Indeno 1,2,3-cd p rene
0.05
NS
ND
ND
ND
NS
NS
NS
NS
ND
ND
ND
2-Methylnaphthalene
30
NS
ND
ND
ND
NS
NS
NS
NS
42.9
ND
ND
Naphthalene
6
NS
ND
ND
ND
NS
NS
NS
NS
ND
ND
ND
Phenanthrene
200
NS
ND
ND
ND
NS
NS
NS
NS
45.9
ND
ND
Phenol
30
NS
NA
NA
NA
NS
NS
NS
NS
NA
NA
NA
Pyrene
200
NS
ND
ND
ND
NS
NS
NS
NS
3.4J
ND
ND
Notes:
All Samples reported in micrograms per liter (µg/L)
= Groundwater Quality Standards (15A NCAC 2L Groundwater Standards, updated April 1, 2013)
Bold Sample Result exceeds NC 2L Groundwater Standard
Bold Sample Result exceeds laboratory method detection limit (MDL)
J = Estimated Value
ND = Not detected above associated method detection limit (MDL)
NS = Not Sampled
DUP-1 collected from DW-1
Note: DUP-1 listed in the field notes and on laboratory chain of custody as DW-1 a.

Table 4
Analytical Results - Metals
and Field Water Quality Parameters
September 19, 2019
Kloeckner Metals Facility
624 Black Satchel Drive
Charlotte, North Carolina
NC 2L
Groundwater
Standard*
MW-1
MW-2
MW-3
MW-4
I MW-5
MW-6
MW-7
MW-8
RW-1
DW-1
DUP-1
Analyte
Lead (EPA Method 200.7)
Lead - Total (ug/L)
15
NS
ND
6.9
8.7
NS
NS
NS
NS
ND
ND
ND
Lead - Dissolved (ug/L)
NSL
NS
ND
ND
ND
NS
NS
NS
NS
ND
ND
ND
Parameter
Field -Measured Water Quality Data
pH (s.u.)
6.5-8.5
NM
6.34
6.71
6.65
NM
NM
NM
NM
6.45
7.04
7.04
Conductivity (us/cm2)
NSL
NM
0.375
0.314
0.664
NM
NM
NM
NM
0.848
0.407
0.407
Temperature (°C)
NSL
NM
20.78
21.30
22.41
NM
NM
NM
NM
21.78
22.77
22.77
Turbidity (NTU)
NSL
NM
1000
559
225
NM
NM
NM
NM
162
126
126
Dissolved Oxygen (DO) (mg/L)
NSL
NM
11.30
2.73
9.60
NM
NM
NM
NM
9.80
9.61
9.61
Oxidation -Reduction Potential
(ORP) (mV)
NSL
NM
182
167
1 75
1 NM
I NM
I NM
NM
-25
166
166
Notes:
= Groundwater Quality Standards (15A NCAC 2L Groundwater Standards, updated April 1, 2013)
Bold Sample Result exceeds NC 2L Groundwater Standard
Bold ISample Result exceeds laboratory method detection limit (MDL)
ND = Not detected above associated MDL
NS = Not Sampled for referenced analysis
ug/L = micrograms per liter
mg/L = milligrams per liter
NTU = Nephlometric Turbidity Units
s.u. = standard units
us/cm2 = microsiemens per square centmeter
°C = degrees celsius
mV = millivolts
NSL = No standard listed
NM = not measured
DUP-1 collected from DW-1
Note: DUP-1 listed in the field notes and on laboratory chain of custody as DW-1a.

FIGURES

Auten Road
� .r
0 t
r w
Ot\�e G
• cX`e\ �
SITE
dr
bw or.
�°
~- •gyp + ,. L. Y �°�q �°N
y
5
0 1000
APPROX. SCALE, ft.
AECOM Technical Services of North Carolina, Inc. Site Location Map
6000 Fairview Road, 1V Suite 200 a c
Charlotte, NC 282, 0 Kloeckner Metals Corporation x
44" om TEL:[phone] Black Satchel Drive Q U °
FAX [phone] Charlotte, C SHEET
Figure 1

Auten Road
� .r
0 t
r w
Ot\�e G
• cX`e\ �
SITE
dr
bw or.
�°
~- •gyp + ,. L. Y �°�q �°N
y
5
0 1000
APPROX. SCALE, ft.
AECOM Technical Services of North Carolina, Inc. Site Location Map
6000 Fairview Road, 1V Suite 200 a c
Charlotte, NC 282, 0 Kloeckner Metals Corporation x
44" om TEL:[phone] Black Satchel Drive Q U °
FAX [phone] Charlotte, C SHEET
Figure 1

1
1
Y
V
3 I .
MW-7
5 MW-5
I Former
MW $; 20,000 Gal UST
I
i
sr MW-3 S M
1 _.......... R®1
t i DW 1 'Former #2 Fuel
Shop Oil UST Area
M9N-2
- - - - I Former Oil/Water
Separator and Used
Former Diesel UST Area Oil UST Area
LEGEND
Property Boundary
l9 Monitoring Well Location {
Deep Monitoring Well Location t
Recovery Well Location
Underground Electric Line
Gas Line
Telephone Line
- - - - Water Line
- — Sanitary Sewer
- - - • - Drain Line 0 100
APPROX. SCALE, R.
y o�µMSdK-]0/7/2019 AEcom r«nomai sa0,ma: of rvoth caroima, Int. Site Layout Map
6000 Fai— Road, Suite 200 Kloeckner Metals Facility
�c AJO 10/7/2019 S Chabot, NC 28210
co TEL: [phone] Black Satchel Drive
rnor6cr No.: FAX [phone] Charlotte, North Carolina
N 60396412

LEGEND
Property Boundary
Monitoring Well Location
Deep Monitoring Well Location
ox 1 Recovery Well Location
B a� rtk Satchel Drive _ _ _ Potentiometric Surface Contour (ft) - above mean sea level
'.�"�^' "•�°.$'� yK ; Inferred Groundwater Flow Direction
fy — Tributary of Stewart Creek
• 740.86 Groundwater Elevation
744.64* Not used in contouring
(738.74) Deep Monitoring Well - not used in contouring
Kloeckner Metals Facility
Y
W
V
3 I
M W-7
7'
rn
MW-6
759.43*
743.19
j
MW-5
737.41
`i♦
\ `
FoNer
-R'0,0004ja1 UST
'
737.14
\ \
`
\ MW-3 MW-1. MW-4 h
'
\
7�40.21 7�65 740,86
\
D RW-1 Former#2
740.56
(740.33)
0.3 Fuel Oil
•'
\ Shop 740 UST Area
p 739i__--�
'
MW-2l-�
W-2
\FormerOil/Water
738Separator and Used
Oil UST Area
Former Diesel UST Area
•
E
I�`
�f � '
IW�IiY�MI�MI�fMIMMM
.
I
0 100
'
APPROX. SCALE, ft.
71
° BY
�WM$dI{-10/3/19
AECOM Technical Services of North Carolina, Inc.
Potentiometric Surface Contour Map
ao(
✓� 600oFairviewRm S,K,2N
September 19, 2019
p
"e A.IO - 10/7�2019
Charlotte, NC 28210
TEL: PO4) 52M330
CoM
Kloeckner Metals Facility
W
PROTECT—
FAX p0,h52M063
624 Black Satchel Drive
60396412
Charlotte, North Carolina

x s
LEGEND
_
Property Boundary
!�
Monitoring Well Location
!�
Deep Monitoring Well Location
Recovery Well Location
B a�T ck Satchel Drive
Note:
,yK ;
MTBE
Methyl Tert-butyl ether
NS
Not sampled
ORP
Oxidation -Reduction Potential
DO
Dissolved Oxygen
ug/L
micrograms per liter
us/cm2
microsiemens per square centimeter
mg/L
milligrams per liter
°C
degrees Celsius
NTU
Nephlometric Turbidity Units
mV
millivolts
J
Estimated Value
1
Kloeckner Metals Facility
1'
M W-3
Lead (Total): 6.9 ug/L
pH: 6.71
Conductivity: 0.314 ua/cm2
Temperature: 21.3 °C
Turbidity: 559 NTU
ORP: 167 mV
DO: 2.73 mg/L
z
y ' NIW-1
NS - Dry
4 ' ` �FoNer
10
t1 51,0,0004ja1 UST
` \ MW4
I \ \ Lead (total): 8.7 ug/L
pH: 6.65
• \ Conductivity: 0.664 us/cm2
I \ \ Temperature: 22.41 °C
Turbidity: 225 NTU
',\ \ ORP: 75 mV
' \ DO: 9.60 mg/L
M1;;y_g NI Fort,,,, #2 .1 Oil
Shop\740 UST Area
RW-1
Benzene: 0.33J
�1 739 i - - - t Isopropylbenzenc: 2.1 ug/L
MTBE: 3.2 ug/L
Naphthalene: 8.9 ug/L
-- _ _ _ \ Former Oil/Water VPH (C9 C10Aromatics): 190ug/L
738 Separator and Used VPH(C9-C12AIiphaecs): 236ug/L
Oil UST Area EPH(CH-C22Aromatics):1450ug/L
I Former Diesel UST Area EPH (C19-C36 Aliphatics): 217 ug/L
EPH (C9-CI8 Aliphatics): 1000 ug/L
• 2-Methylnaphthalene: 42.9 ug/L
I Phenta threne: 45.9 ug/L
Pyrene: 3.41 ug/L
pH: 6.45
Conductivity: 0.848 us/cm2
ITemperature: 21.78 °C
Turbidity: 162 NTU
ORP: -25 mV
' DW-1 / D W-1 (DUP-H M W-2 DO: 9.80 mg/L
pH: 7.04 pH: 6.34 - - -
Conductivity: 0.407 us/cm2 Conductivity: 0.375 us/cm2
/ Temperature: 22.77 °C Temperature: 20.78 °C
Turbidity: 126 NTU Turbidity: 1000 NTU
• ORP: 166 mV ORP: 182 mV
• DO: 9.61 mg/1 DO: 11.30 mg/L
' Ir
• 1( 1
I N
I ` 0 100
v
` APPROX. SCALE, R.
1? na MSdK- 10/3/19 AEcoMTech,aolS-1—ofNorth Carolina, 1— Analytical Results and Groundwater Quality Map
ao❑ E WCOM 6000Fn,NC28ad,5ui[e200 September 19, 2019
Ct �cA.TO 10/7/2019 Charlotte,N2-033 KloecknerMetalsFacility
(p TEL p04) 522-033a
rHOIECT rvO.: FAX[phone] Black Satchel Drive
41 60396412 Charlotte, North Carolina

APPENDIX A
Laboratory Analytical Report

aceAnalytical
—pacelabs.com
Pace Analytical Services, LLC
9800 Kincey Ave. Suite 100
Huntersville, NC 28078
[phone]
September 30, 2019
Chris Rocco
AECOM
5925 Carnegie Blvd
Suite 370
Charlotte, NC 28209
RE: Project: MacSteel-Kloeckner Metals
Pace Project No.: 92446381
Dear Chris Rocco:
Enclosed are the analytical results for sample(s) received by the laboratory on September 20, 2019.
The results relate only to the samples included in this report. Results reported herein conform to the
most current, applicable TNI/NELAC standards and the laboratory's Quality Assurance Manual,
where applicable, unless otherwise noted in the body of the report.
If you have any questions concerning this report, please feel free to contact me.
Sincerely,
��i Flo _ _.1I , .�:
Nicole Gasiorowski
[e-mail]
[phone]
Project Manager
Enclosures
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, LLC.
Page 1 of 39

acmnalytical
www.pacelabs.com
Pace Analytical Services, LLC
9800 KinceyAve. Suite 100
Huntersville, NC 28078
[phone]
Project: MacSteel-Kloeckner Metals
Pace Project No.: 92446381
Charlotte Certification IDs
9800 Kincey Ave. Ste 100, Huntersville, NC 28078
Louisiana/NELAP Certification # LA170028
North Carolina Drinking Water Certification #: 37706
North Carolina Field Services Certification #: 5342
North Carolina Wastewater Certification #: 12
Asheville Certification IDS
2225 Riverside Drive, Asheville, NC 28804
Florida/NELAP Certification #: E87648
Massachusetts Certification #: M-NC030
North Carolina Drinking Water Certification #: 37712
CERTIFICATIONS
South Carolina Certification #: 99006001
Florida/NELAP Certification #: E87627
Kentucky UST Certification #: 84
Virginia/VELAP Certification #: 460221
North Carolina Wastewater Certification #: 40
South Carolina Certification #: 99030001
Virginia/VELAP Certification #: 460222
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, LLC. Page 2 of 39

aceAnalytical
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Pace Analytical Services, LLC
9800 Kincey Ave. Suite 100
Huntersville, NC 28078
[phone]
SAMPLE SUMMARY
Project: MacSteel-Kloeckner Metals
Pace Project No.: 92446381
Lab ID
Sample ID
Matrix
Date Collected
Date Received
92446381001
MW-2
Water
09/19/19 13:00
09/20/19 09:00
92446381002
MW-3
Water
09/19/19 13:30
09/20/19 09:00
92446381003
MW-4
Water
09/19/19 15:00
09/20/19 09:00
92446381004
DW-1
Water
09/19/19 14:00
09/20/19 09:00
92446381005
RW-1
Water
09/19/19 14:40
09/20/19 09:00
92446381006
DUP-1
Water
09/19/19 00:00
09/20/19 09:00
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, LLC.
Page 3 of 39

aceAnalytical
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Pace Analytical Services, LLC
9800 Kincey Ave. Suite 100
Huntersville, NC 28078
[phone]
SAMPLE ANALYTE COUNT
Project:
Pace Project No.:
MacSteel-Kloeckner Metals
92446381
Analytes
Lab ID
Sample ID
Method
Analysts
Reported
Laboratory
92446381001
MW-2
MADEP EPH
SEM
7
PASI-C
MADEP VPH
LMB
6
PASI-C
EPA 6010D
DS
1
PASI-A
EPA 6010D
IDS
1
PASI-A
EPA 625.1
PKS
23
PASI-C
SM 6200B
SAS
16
PASI-C
92446381002
MW-3
MADEP EPH
SEM
7
PASI-C
MADEP VPH
LMB
6
PASI-C
EPA 6010D
IDS
1
PASI-A
EPA 6010D
IDS
1
PASI-A
EPA 625.1
PKS
20
PASI-C
SM 6200B
SAS
16
PASI-C
92446381003
MW-4
MADEP EPH
SEM
7
PASI-C
MADEP VPH
LMB
6
PASI-C
EPA 6010D
IDS
1
PASI-A
EPA 6010D
IDS
1
PASI-A
EPA 625.1
PKS
20
PASI-C
SM 6200B
SAS
16
PASI-C
92446381004
DW-1
MADEP EPH
SEM
7
PASI-C
MADEP VPH
LMB
6
PASI-C
EPA 6010D
IDS
1
PASI-A
EPA 6010D
IDS
1
PASI-A
EPA 625.1
PKS
20
PASI-C
SM 6200B
SAS
16
PASI-C
92446381005
RW-1
MADEP EPH
SEM
7
PASI-C
MADEP VPH
LMB
6
PASI-C
EPA 6010D
IDS
1
PASI-A
EPA 6010D
IDS
1
PASI-A
EPA 625.1
PKS
20
PASI-C
SM 6200B
SAS
16
PASI-C
92446381006
DUP-1
MADEP EPH
SEM
7
PASI-C
MADEP VPH
LMB
6
PASI-C
EPA 6010D
IDS
1
PASI-A
EPA 6010D
IDS
1
PASI-A
EPA 625.1
PKS
20
PASI-C
SM 6200B
SAS
16
PASI-C
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, LLC. Page 4 of 39

aceAnalytical
_pacelabs.com
Pace Analytical Services, LLC
9800 Kincey Ave. Suite 100
Huntersville, NC 28078
[phone]
PROJECT NARRATIVE
Project: MacSteel-Kloeckner Metals
Pace Project No.: 92446381
Method: MADEP EPH
Description: MADEP EPH NC Water
Client: AECOM, Charlotte
Date: September 30, 2019
General Information:
6 samples were analyzed for MADEP EPH. All samples were received in acceptable condition with any exceptions noted below or on
the chain -of custody and/or the sample condition upon receipt form (SCUR) attached at the end of this report.
Hold Time:
The samples were analyzed within the method required hold times with any exceptions noted below.
Sample Preparation:
The samples were prepared in accordance with MADEP EPH with any exceptions noted below.
Initial Calibrations (including MS Tune as applicable):
All criteria were within method requirements with any exceptions noted below.
Continuing Calibration:
All criteria were within method requirements with any exceptions noted below.
Surrogates:
All surrogates were within QC limits with any exceptions noted below.
QC Batch: 500145
SO: Surrogate recovery outside laboratory control limits.
• MW-2 (Lab ID: 92446381001)
• Nonatriacontane (S)
Method Blank:
All analytes were below the report limit in the method blank, where applicable, with any exceptions noted below.
Laboratory Control Spike:
All laboratory control spike compounds were within QC limits with any exceptions noted below.
Matrix Spikes:
All percent recoveries and relative percent differences (RPDs) were within acceptance criteria with any exceptions noted below.
Additional Comments:
Analyte Comments:
QC Batch: 500145
P2: Re -extraction or re -analysis could not be performed due to insufficient sample amount.
• MW-2 (Lab ID: 92446381001)
• Nonatriacontane (S)
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, LLC. Page 5 of 39

aceAnalytical
_pacelabs.com
Pace Analytical Services, LLC
9800 Kincey Ave. Suite 100
Huntersville, NC 28078
[phone]
PROJECT NARRATIVE
Project: MacSteel-Kloeckner Metals
Pace Project No.: 92446381
Method: MADEP VPH
Description: VPH NC Water
Client: AECOM, Charlotte
Date: September 30, 2019
General Information:
6 samples were analyzed for MADEP VPH. All samples were received in acceptable condition with any exceptions noted below or on
the chain -of custody and/or the sample condition upon receipt form (SCUR) attached at the end of this report.
Hold Time:
The samples were analyzed within the method required hold times with any exceptions noted below.
Initial Calibrations (including MS Tune as applicable):
All criteria were within method requirements with any exceptions noted below.
Continuing Calibration:
All criteria were within method requirements with any exceptions noted below.
Surrogates:
All surrogates were within QC limits with any exceptions noted below.
Method Blank:
All analytes were below the report limit in the method blank, where applicable, with any exceptions noted below.
Laboratory Control Spike:
All laboratory control spike compounds were within QC limits with any exceptions noted below.
Matrix Spikes:
All percent recoveries and relative percent differences (RPDs) were within acceptance criteria with any exceptions noted below.
Additional Comments:
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, LLC. Page 6 of 39

aceAnalytical
—pacelabs.com
Pace Analytical Services, LLC
9800 Kincey Ave. Suite 100
Huntersville, NC 28078
[phone]
PROJECT NARRATIVE
Project: MacSteel-Kloeckner Metals
Pace Project No.: 92446381
Method: EPA 601 OD
Description: 6010 MET ICP
Client: AECOM, Charlotte
Date: September 30, 2019
General Information:
6 samples were analyzed for EPA 601 OD. All samples were received in acceptable condition with any exceptions noted below or on the
chain -of custody and/or the sample condition upon receipt form (SCUR) attached at the end of this report.
Hold Time:
The samples were analyzed within the method required hold times with any exceptions noted below.
Sample Preparation:
The samples were prepared in accordance with EPA 3010A with any exceptions noted below.
Initial Calibrations (including MS Tune as applicable):
All criteria were within method requirements with any exceptions noted below.
Continuing Calibration:
All criteria were within method requirements with any exceptions noted below.
Method Blank:
All analytes were below the report limit in the method blank, where applicable, with any exceptions noted below.
Laboratory Control Spike:
All laboratory control spike compounds were within QC limits with any exceptions noted below.
Matrix Spikes:
All percent recoveries and relative percent differences (RPDs) were within acceptance criteria with any exceptions noted below.
Additional Comments:
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, LLC. Page 7 of 39

aceAnalytical
_pacelabs.com
Pace Analytical Services, LLC
9800 Kincey Ave. Suite 100
Huntersville, NC 28078
[phone]
PROJECT NARRATIVE
Project: MacSteel-Kloeckner Metals
Pace Project No.: 92446381
Method: EPA 601 OD
Description: 6010 MET ICP, Lab Filtered
Client: AECOM, Charlotte
Date: September 30, 2019
General Information:
6 samples were analyzed for EPA 601 OD. All samples were received in acceptable condition with any exceptions noted below or on the
chain -of custody and/or the sample condition upon receipt form (SCUR) attached at the end of this report.
P4: Sample field preservation does not meet EPA or method recommendations for this analysis.
• DUP-1 (Lab ID: 92446381006)
• DW-1 (Lab ID: 92446381004)
• MW-2 (Lab ID: 92446381001)
• MW-3 (Lab ID: 92446381002)
• MW-4 (Lab ID: 92446381003)
• RW-1 (Lab ID: 92446381005)
Hold Time:
The samples were analyzed within the method required hold times with any exceptions noted below.
Sample Preparation:
The samples were prepared in accordance with EPA 3010A with any exceptions noted below.
Initial Calibrations (including MS Tune as applicable):
All criteria were within method requirements with any exceptions noted below.
Continuing Calibration:
All criteria were within method requirements with any exceptions noted below.
Method Blank:
All analytes were below the report limit in the method blank, where applicable, with any exceptions noted below.
Laboratory Control Spike:
All laboratory control spike compounds were within QC limits with any exceptions noted below.
Matrix Spikes:
All percent recoveries and relative percent differences (RPDs) were within acceptance criteria with any exceptions noted below.
Additional Comments:
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, LLC. Page 8 of 39

aceAnalytical
_pacelabs.com
Pace Analytical Services, LLC
9800 Kincey Ave. Suite 100
Huntersville, NC 28078
[phone]
PROJECT NARRATIVE
Project: MacSteel-Kloeckner Metals
Pace Project No.: 92446381
Method: EPA 625.1
Description: 625 RVE
Client: AECOM, Charlotte
Date: September 30, 2019
General Information:
6 samples were analyzed for EPA 625.1. All samples were received in acceptable condition with any exceptions noted below or on the
chain -of custody and/or the sample condition upon receipt form (SCUR) attached at the end of this report.
Hold Time:
The samples were analyzed within the method required hold times with any exceptions noted below.
Sample Preparation:
The samples were prepared in accordance with EPA 625.1 with any exceptions noted below.
Initial Calibrations (including MS Tune as applicable):
All criteria were within method requirements with any exceptions noted below.
Continuing Calibration:
All criteria were within method requirements with any exceptions noted below.
Internal Standards:
All internal standards were within QC limits with any exceptions noted below.
Surrogates:
All surrogates were within QC limits with any exceptions noted below.
Method Blank:
All analytes were below the report limit in the method blank, where applicable, with any exceptions noted below.
Laboratory Control Spike:
All laboratory control spike compounds were within QC limits with any exceptions noted below.
Matrix Spikes:
All percent recoveries and relative percent differences (RPDs) were within acceptance criteria with any exceptions noted below.
QC Batch: 500081
A matrix spike and/or matrix spike duplicate (MS/MSD) were performed on the following sample(s): 92446381001
M1: Matrix spike recovery exceeded QC limits. Batch accepted based on laboratory control sample (LCS) recovery.
• MSD (Lab ID: 2690753)
• Pyrene
Additional Comments:
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, LLC. Page 9 of 39

aceAnalytical
—pacelabs.com
Pace Analytical Services, LLC
9800 Kincey Ave. Suite 100
Huntersville, NC 28078
[phone]
PROJECT NARRATIVE
Project: MacSteel-Kloeckner Metals
Pace Project No.: 92446381
Method: SM 6200B
Description: 6200B MSV
Client: AECOM, Charlotte
Date: September 30, 2019
General Information:
6 samples were analyzed for SM 6200B. All samples were received in acceptable condition with any exceptions noted below or on the
chain -of custody and/or the sample condition upon receipt form (SCUR) attached at the end of this report.
Hold Time:
The samples were analyzed within the method required hold times with any exceptions noted below.
Initial Calibrations (including MS Tune as applicable):
All criteria were within method requirements with any exceptions noted below.
Continuing Calibration:
All criteria were within method requirements with any exceptions noted below.
Internal Standards:
All internal standards were within QC limits with any exceptions noted below.
Surrogates:
All surrogates were within QC limits with any exceptions noted below.
Method Blank:
All analytes were below the report limit in the method blank, where applicable, with any exceptions noted below.
Laboratory Control Spike:
All laboratory control spike compounds were within QC limits with any exceptions noted below.
Matrix Spikes:
All percent recoveries and relative percent differences (RPDs) were within acceptance criteria with any exceptions noted below.
QC Batch: 499501
A matrix spike and/or matrix spike duplicate (MS/MSD) were performed on the following sample(s): 92446234008
M1: Matrix spike recovery exceeded QC limits. Batch accepted based on laboratory control sample (LCS) recovery.
• MS (Lab ID: 2687919)
• Toluene
• MSD (Lab ID: 2687920)
• Toluene
• o-Xylene
QC Batch: 499713
A matrix spike and/or matrix spike duplicate (MS/MSD) were performed on the following sample(s): 92446413001
M1: Matrix spike recovery exceeded QC limits. Batch accepted based on laboratory control sample (LCS) recovery.
• MS (Lab ID: 2688876)
• Toluene
• MSD (Lab ID: 2688877)
• m&p-Xylene
REPORT OF LABORATORY ANALYSIS
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without the written consent of Pace Analytical Services, LLC. Page 10 of 39

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PROJECT NARRATIVE
Project: MacSteel-Kloeckner Metals
Pace Project No.: 92446381
Method: SM 6200B
Description: 6200B MSV
Client: AECOM, Charlotte
Date: September 30, 2019
Additional Comments:
This data package has been reviewed for quality and completeness and is approved for release.
REPORT OF LABORATORY ANALYSIS
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without the written consent of Pace Analytical Services, LLC. Page 11 of 39

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ANALYTICAL RESULTS
Project: MacSteel-Kloeckner Metals
Pace Project No.: 92446381
Sample: MW-2 Lab ID: 92446381001 Collected: 09/19/19 13:00 Received: 09/20/19 09:00 Matrix: Water
Report
Parameters Results Units Limit MDL DF Prepared Analyzed CAS No. Qual
�AF_117=1»]:1'4DAir=
Aliphatic (C09-C18)
Aliphatic (C19-C36)
Aromatic (C11-C22)
Surrogates
Nonatriacontane (S)
o-Terphenyl(S)
2-Fluorobiphenyl (S)
2-Bromonaphthalene (S)
VPH NC Water
Aliphatic (C05-CO8)
Aliphatic (C09-C12)
Aliphatic(C09-C12) Adjusted
Aromatic (C09-C10)
Surrogates
4-Bromofluorobenzene (FID) (S)
4-Bromofluorobenzene (PID) (S)
6010 MET ICP
Lead
6010 MET ICP, Lab Filtered
Lead, Dissolved
625 RVE
Acenaphthene
Acenaphthylene
Anthracene
Benzo(a)anthracene
Benzo(a)pyrene
Benzo(b)fluoranthene
Benzo(g,h,i)perylene
Benzo(k)fluoranthene
Chrysene
Dibenz(a,h)anthracene
Fluoranthene
Fluorene
Indeno(1,2,3-cd)pyrene
2-Methylnaphthalene
Naphthalene
Phenanthrene
Pyrene
Surrogates
Nitrobenzene-d5 (S)
2-Fluorobiphenyl (S)
Terphenyl-d14 (S)
Date: 09/30/2019 04:54 PM
Analytical Method: MADEP EPH Preparation Method: MADEP EPH
ND
ug/L
98.0
98.0
1
09/26/1916:44
09/28/1912:35
N2
ND
ug/L
98.0
98.0
1
09/26/1916:44
09/28/1912:35
N2
ND
ug/L
98.0
98.0
1
09/26/1916:44
09/28/1912:35
N2
39
%
40-140
1
09/26/19 16:44
09/28/19 12:35
7194-86-7
P2, SO
48
%
40-140
1
09/26/1916:44
09/28/1912:35
84-15-1
102
%
40-140
1
09/26/1916:44
09/28/1912:35
321-60-8
102
%
40-140
1
09/26/1916:44
09/28/1912:35
580-13-2
Analytical Method: MADEP VPH
ND
ug/L
50.0
50.0
1
09/20/1918:28
N2
ND
ug/L
50.0
50.0
1
09/20/1918:28
N2
ND
ug/L
50.0
50.0
1
09/20/1918:28
N2
ND
ug/L
50.0
50.0
1
09/20/1918:28
N2
92
%
70-130
1
09/20/1918:28
460-00-4
98
%
70-130
1
09/20/1918:28
460-00-4
Analytical Method: EPA 601 OD Preparation Method: EPA
301 OA
ND
ug/L
5.0
2.5
1
09/23/1919:52
09/25/1916:55
7439-92-1
Analytical Method: EPA 601 OD Preparation Method:
EPA
301 OA
ND
ug/L
5.0
2.5
1
09/26/1912:13
09/26/1916:18
7439-92-1
P4
Analytical Method: EPA 625.1 Preparation Method: EPA 625.1
ND
ug/L
5.0
1.6
1
09/26/19 14:25
09/26/19 20:04
83-32-9
ND
ug/L
5.0
1.6
1
09/26/19 14:25
09/26/19 20:04
208-96-8
ND
ug/L
5.0
1.7
1
09/26/19 14:25
09/26/19 20:04
120-12-7
ND
ug/L
5.0
1.8
1
09/26/19 14:25
09/26/19 20:04
56-55-3
ND
ug/L
5.0
2.1
1
09/26/19 14:25
09/26/19 20:04
50-32-8
ND
ug/L
5.0
1.9
1
09/26/19 14:25
09/26/19 20:04
205-99-2
ND
ug/L
5.0
1.4
1
09/26/19 14:25
09/26/19 20:04
191-24-2
ND
ug/L
5.0
1.9
1
09/26/19 14:25
09/26/19 20:04
207-08-9
ND
ug/L
5.0
1.7
1
09/26/19 14:25
09/26/19 20:04
218-01-9
ND
ug/L
5.0
1.6
1
09/26/19 14:25
09/26/19 20:04
53-70-3
ND
ug/L
5.0
1.7
1
09/26/19 14:25
09/26/19 20:04
206-44-0
ND
ug/L
5.0
1.6
1
09/26/19 14:25
09/26/19 20:04
86-73-7
ND
ug/L
5.0
1.6
1
09/26/19 14:25
09/26/19 20:04
193-39-5
ND
ug/L
5.0
1.4
1
09/26/19 14:25
09/26/19 20:04
91-57-6
ND
ug/L
5.0
1.4
1
09/26/19 14:25
09/26/19 20:04
91-20-3
ND
ug/L
5.0
1.7
1
09/26/19 14:25
09/26/19 20:04
85-01-8
ND
ug/L
5.0
2.1
1
09/26/19 14:25
09/26/19 20:04
129-00-0
M1
87
%
10-120
1
09/26/19 14:25
09/26/19 20:04
4165-60-0
82
%
15-120
1
09/26/19 14:25
09/26/19 20:04
321-60-8
88
%
11-131
1
09/26/19 14:25
09/26/19 20:04
1718-51-0
REPORT OF LABORATORY ANALYSIS
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ANALYTICAL RESULTS
Project: MacSteel-Kloeckner Metals
Pace Project No.: 92446381
Sample: MW-2
Lab ID:
92446381001
Collected:
09/19/19 13:00
Received: 09/20/19 09:00 Matrix: Water
Report
Parameters
Results
Units
Limit
MDL
DF
Prepared
Analyzed
CAS No. Qual
625 RVE
Analytical
Method: EPA 625.1
Preparation Method:
EPA 625.1
Surrogates
Phenol-d6 (S)
50
%
10-120
1
09/26/19 14:25
09/26/19 20:04
13127-88-3
2-Fluorophenol (S)
68
%
10-120
1
09/26/19 14:25
09/26/19 20:04
367-12-4
2,4,6-Tribromophenol (S)
102
%
10-137
1
09/26/19 14:25
09/26/19 20:04
118-79-6
6200B MSV
Analytical
Method: SM 6200B
Benzene
ND
ug/L
0.50
0.25
1
09/24/19 17:24
71-43-2
Chlorobenzene
ND
ug/L
0.50
0.25
1
09/24/19 17:24
108-90-7
1,2-Dichlorobenzene
ND
ug/L
0.50
0.25
1
09/24/19 17:24
95-50-1
1,3-Dichlorobenzene
ND
ug/L
0.50
0.25
1
09/24/19 17:24
541-73-1
1,4-Dichlorobenzene
ND
ug/L
0.50
0.25
1
09/24/19 17:24
106-46-7
Diisopropyl ether
ND
ug/L
0.50
0.25
1
09/24/19 17:24
108-20-3
Ethylbenzene
ND
ug/L
0.50
0.25
1
09/24/19 17:24
100-41-4
Isopropylbenzene (Cumene)
ND
ug/L
0.50
0.25
1
09/24/19 17:24
98-82-8
Methyl-tert-butyl ether
ND
ug/L
0.50
0.25
1
09/24/19 17:24
1634-04-4
Naphthalene
ND
ug/L
2.0
1.0
1
09/24/19 17:24
91-20-3
Toluene
ND
ug/L
0.50
0.25
1
09/24/19 17:24
108-88-3
m&p-Xylene
ND
ug/L
1.0
0.50
1
09/24/19 17:24
179601-23-1
o-Xylene
ND
ug/L
0.50
0.25
1
09/24/19 17:24
95-47-6
Surrogates
1,2-Dichloroethane-d4 (S)
87
%
70-130
1
09/24/19 17:24
17060-07-0
4-Bromofluorobenzene (S)
115
%
70-130
1
09/24/19 17:24
460-00-4
Toluene-d8 (S)
97
%
70-130
1
09/24/19 17:24
2037-26-5
Date: 09/30/2019 04:54 PM
REPORT OF LABORATORY ANALYSIS
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without the written consent of Pace Analytical Services, LLC.
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ANALYTICAL RESULTS
Project: MacSteel-Kloeckner Metals
Pace Project No.: 92446381
Sample: MW-3
Lab ID:
92446381002
Collected:
09/19/19 13:30
Received: 09/20/19 09:00 Matrix: Water
Report
Parameters
Results
Units
Limit
MDL
DF
Prepared
Analyzed
CAS No.
Qual
MADEP EPH NC Water
Analytical
Method: MADEP EPH Preparation Method: MADEP EPH
Aliphatic (C09-C18)
ND
ug/L
99.0
99.0
1
09/26/19 16:44
09/28/19 13:02
N2
Aliphatic (C19-C36)
ND
ug/L
99.0
99.0
1
09/26/19 16:44
09/28/19 13:02
N2
Aromatic (C11-C22)
ND
ug/L
99.0
99.0
1
09/26/19 16:44
09/28/19 13:02
N2
Surrogates
Nonatriacontane (S)
73
%
40-140
1
09/26/19 16:44
09/28/19 13:02
7194-86-7
o-Terphenyl (S)
103
%
40-140
1
09/26/19 16:44
09/28/19 13:02
84-15-1
2-Fluorobiphenyl (S)
111
%
40-140
1
09/26/19 16:44
09/28/19 13:02
321-60-8
2-Bromonaphthalene (S)
112
%
40-140
1
09/26/19 16:44
09/28/19 13:02
580-13-2
VPH NC Water
Analytical
Method: MADEP VPH
Aliphatic (C05-008)
ND
ug/L
50.0
50.0
1
09/20/19 18:57
N2
Aliphatic (C09-C12)
ND
ug/L
50.0
50.0
1
09/20/19 18:57
N2
Aliphatic(C09-C12)Adjusted
ND
ug/L
50.0
50.0
1
09/20/19 18:57
N2
Aromatic (C09-C10)
ND
ug/L
50.0
50.0
1
09/20/19 18:57
N2
Surrogates
4-Bromofluorobenzene (FID) (S)
92
%
70-130
1
09/20/19 18:57
460-00-4
4-Bromofluorobenzene (PID) (S)
97
%
70-130
1
09/20/19 18:57
460-00-4
6010 MET ICP
Analytical
Method: EPA 6010D
Preparation Method: EPA 3010A
Lead
6.9
ug/L
5.0
2.5
1
09/23/1919:52
09/25/1917:16
7439-92-1
6010 MET ICP, Lab Filtered
Analytical
Method: EPA 6010D
Preparation Method: EPA 3010A
Lead, Dissolved
ND
ug/L
5.0
2.5
1
09/26/19 12:13
09/26/19 16:34
7439-92-1
P4
625 RVE
Analytical
Method: EPA 625.1
Preparation Method:
EPA 625.1
Acenaphthene
ND
ug/L
5.0
1.6
1
09/26/19 14:25
09/26/19 21:20
83-32-9
Acenaphthylene
ND
ug/L
5.0
1.6
1
09/26/19 14:25
09/26/19 21:20
208-96-8
Anthracene
ND
ug/L
5.0
1.7
1
09/26/19 14:25
09/26/19 21:20
120-12-7
Benzo(a)anthracene
ND
ug/L
5.0
1.8
1
09/26/19 14:25
09/26/19 21:20
56-55-3
Benzo(a)pyrene
ND
ug/L
5.0
2.1
1
09/26/19 14:25
09/26/19 21:20
50-32-8
Benzo(b)fluoranthene
ND
ug/L
5.0
1.9
1
09/26/19 14:25
09/26/19 21:20
205-99-2
Benzo(g,h,i)perylene
ND
ug/L
5.0
1.4
1
09/26/19 14:25
09/26/19 21:20
191-24-2
Benzo(k)fluoranthene
ND
ug/L
5.0
1.9
1
09/26/19 14:25
09/26/19 21:20
207-08-9
Chrysene
ND
ug/L
5.0
1.7
1
09/26/19 14:25
09/26/19 21:20
218-01-9
Dibenz(a,h)anthracene
ND
ug/L
5.0
1.6
1
09/26/19 14:25
09/26/19 21:20
53-70-3
Fluoranthene
ND
ug/L
5.0
1.7
1
09/26/19 14:25
09/26/19 21:20
206-44-0
Fluorene
ND
ug/L
5.0
1.6
1
09/26/19 14:25
09/26/19 21:20
86-73-7
Indeno(1,2,3-cd)pyrene
ND
ug/L
5.0
1.6
1
09/26/19 14:25
09/26/19 21:20
193-39-5
2-Methylnaphthalene
ND
ug/L
5.0
1.4
1
09/26/19 14:25
09/26/19 21:20
91-57-6
Naphthalene
ND
ug/L
5.0
1.4
1
09/26/19 14:25
09/26/19 21:20
91-20-3
Phenanthrene
ND
ug/L
5.0
1.7
1
09/26/19 14:25
09/26/19 21:20
85-01-8
Pyrene
ND
ug/L
5.0
2.1
1
09/26/19 14:25
09/26/19 21:20
129-00-0
Surrogates
Nitrobenzene-d5 (S)
84
%
10-120
1
09/26/19 14:25
09/26/19 21:20
4165-60-0
2-Fluorobiphenyl (S)
78
%
15-120
1
09/26/19 14:25
09/26/19 21:20
321-60-8
Terphenyl-d14 (S)
109
%
11-131
1
09/26/19 14:25
09/26/19 21:20
1718-51-0
REPORT OF LABORATORY
ANALYSIS
This report shall not be reproduced, except in full,
Date: 09/30/2019 04:54 PM
without the written consent of Pace Analytical Services, LLC.
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ANALYTICAL RESULTS
Project: MacSteel-Kloeckner Metals
Pace Project No.: 92446381
Sample: MW-3
Lab ID:
92446381002
Collected:
09/19/19 13:30
Received: 09/20/19 09:00 Matrix: Water
Report
Parameters
Results
Units
Limit
MDL
DF
Prepared Analyzed
CAS No. Qual
6200B MSV
Analytical
Method: SM 6200B
Benzene
ND
ug/L
0.50
0.25
1
09/24/19 17:41
71-43-2
Chlorobenzene
ND
ug/L
0.50
0.25
1
09/24/19 17:41
108-90-7
1,2-Dichlorobenzene
ND
ug/L
0.50
0.25
1
09/24/19 17:41
95-50-1
1,3-Dichlorobenzene
ND
ug/L
0.50
0.25
1
09/24/19 17:41
541-73-1
1,4-Dichlorobenzene
ND
ug/L
0.50
0.25
1
09/24/19 17:41
106-46-7
Diisopropyl ether
ND
ug/L
0.50
0.25
1
09/24/19 17:41
108-20-3
Ethylbenzene
ND
ug/L
0.50
0.25
1
09/24/19 17:41
100-41-4
Isopropylbenzene (Cumene)
ND
ug/L
0.50
0.25
1
09/24/19 17:41
98-82-8
Methyl-tert-butyl ether
ND
ug/L
0.50
0.25
1
09/24/19 17:41
1634-04-4
Naphthalene
ND
ug/L
2.0
1.0
1
09/24/19 17:41
91-20-3
Toluene
ND
ug/L
0.50
0.25
1
09/24/19 17:41
108-88-3
m&p-Xylene
ND
ug/L
1.0
0.50
1
09/24/19 17:41
179601-23-1
o-Xylene
ND
ug/L
0.50
0.25
1
09/24/19 17:41
95-47-6
Surrogates
1,2-Dichloroethane-d4 (S)
88
%
70-130
1
09/24/19 17:41
17060-07-0
4-Bromofluorobenzene (S)
91
%
70-130
1
09/24/19 17:41
460-00-4
Toluene-d8 (S)
97
%
70-130
1
09/24/19 17:41
2037-26-5
Date: 09/30/2019 04:54 PM
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, LLC.
Page 15 of 39

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ANALYTICAL RESULTS
Project: MacSteel-Kloeckner Metals
Pace Project No.: 92446381
Sample: MW-4
Lab ID:
92446381003
Collected:
09/19/19 15:00
Received: 09/20/19 09:00 Matrix: Water
Report
Parameters
Results
Units
Limit
MDL
DF
Prepared
Analyzed
CAS No.
Qual
MADEP EPH NC Water
Analytical
Method: MADEP EPH Preparation Method: MADEP EPH
Aliphatic (C09-C18)
ND
ug/L
98.0
98.0
1
09/26/19 16:44
09/28/19 13:30
N2
Aliphatic (C19-C36)
ND
ug/L
98.0
98.0
1
09/26/19 16:44
09/28/19 13:30
N2
Aromatic (C11-C22)
ND
ug/L
98.0
98.0
1
09/26/19 16:44
09/28/19 13:30
N2
Surrogates
Nonatriacontane (S)
52
%
40-140
1
09/26/19 16:44
09/28/19 13:30
7194-86-7
o-Terphenyl (S)
89
%
40-140
1
09/26/19 16:44
09/28/19 13:30
84-15-1
2-Fluorobiphenyl (S)
122
%
40-140
1
09/26/19 16:44
09/28/19 13:30
321-60-8
2-Bromonaphthalene (S)
122
%
40-140
1
09/26/19 16:44
09/28/19 13:30
580-13-2
VPH NC Water
Analytical
Method: MADEP VPH
Aliphatic (C05-008)
ND
ug/L
50.0
50.0
1
09/20/19 19:27
N2
Aliphatic (C09-C12)
ND
ug/L
50.0
50.0
1
09/20/19 19:27
N2
Aliphatic(C09-C12)Adjusted
ND
ug/L
50.0
50.0
1
09/20/19 19:27
N2
Aromatic (C09-C10)
ND
ug/L
50.0
50.0
1
09/20/19 19:27
N2
Surrogates
4-Bromofluorobenzene (FID) (S)
93
%
70-130
1
09/20/19 19:27
460-00-4
4-Bromofluorobenzene (PID) (S)
98
%
70-130
1
09/20/19 19:27
460-00-4
6010 MET ICP
Analytical
Method: EPA 6010D
Preparation Method: EPA 3010A
Lead
8.7
ug/L
5.0
2.5
1
09/23/1919:52
09/25/1917:19
7439-92-1
6010 MET ICP, Lab Filtered
Analytical
Method: EPA 6010D
Preparation Method: EPA 3010A
Lead, Dissolved
ND
ug/L
5.0
2.5
1
09/26/19 12:13
09/26/19 16:37
7439-92-1
P4
625 RVE
Analytical
Method: EPA 625.1
Preparation Method:
EPA 625.1
Acenaphthene
ND
ug/L
5.0
1.6
1
09/26/19 14:25
09/26/19 21:46
83-32-9
Acenaphthylene
ND
ug/L
5.0
1.6
1
09/26/19 14:25
09/26/19 21:46
208-96-8
Anthracene
ND
ug/L
5.0
1.7
1
09/26/19 14:25
09/26/19 21:46
120-12-7
Benzo(a)anthracene
ND
ug/L
5.0
1.8
1
09/26/19 14:25
09/26/19 21:46
56-55-3
Benzo(a)pyrene
ND
ug/L
5.0
2.1
1
09/26/19 14:25
09/26/19 21:46
50-32-8
Benzo(b)fluoranthene
ND
ug/L
5.0
1.9
1
09/26/19 14:25
09/26/19 21:46
205-99-2
Benzo(g,h,i)perylene
ND
ug/L
5.0
1.4
1
09/26/19 14:25
09/26/19 21:46
191-24-2
Benzo(k)fluoranthene
ND
ug/L
5.0
1.9
1
09/26/19 14:25
09/26/19 21:46
207-08-9
Chrysene
ND
ug/L
5.0
1.7
1
09/26/19 14:25
09/26/19 21:46
218-01-9
Dibenz(a,h)anthracene
ND
ug/L
5.0
1.6
1
09/26/19 14:25
09/26/19 21:46
53-70-3
Fluoranthene
ND
ug/L
5.0
1.7
1
09/26/19 14:25
09/26/19 21:46
206-44-0
Fluorene
ND
ug/L
5.0
1.6
1
09/26/19 14:25
09/26/19 21:46
86-73-7
Indeno(1,2,3-cd)pyrene
ND
ug/L
5.0
1.6
1
09/26/19 14:25
09/26/19 21:46
193-39-5
2-Methylnaphthalene
ND
ug/L
5.0
1.4
1
09/26/19 14:25
09/26/19 21:46
91-57-6
Naphthalene
ND
ug/L
5.0
1.4
1
09/26/19 14:25
09/26/19 21:46
91-20-3
Phenanthrene
ND
ug/L
5.0
1.7
1
09/26/19 14:25
09/26/19 21:46
85-01-8
Pyrene
ND
ug/L
5.0
2.1
1
09/26/19 14:25
09/26/19 21:46
129-00-0
Surrogates
Nitrobenzene-d5 (S)
78
%
10-120
1
09/26/19 14:25
09/26/19 21:46
4165-60-0
2-Fluorobiphenyl (S)
74
%
15-120
1
09/26/19 14:25
09/26/19 21:46
321-60-8
Terphenyl-d14 (S)
106
%
11-131
1
09/26/19 14:25
09/26/19 21:46
1718-51-0
REPORT OF LABORATORY
ANALYSIS
This report shall not be reproduced, except in full,
Date: 09/30/2019 04:54 PM
without the written consent of Pace Analytical Services, LLC.
Page 16 of 39

aceAnalytical
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Pace Analytical Services, LLC
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Huntersville, NC 28078
[phone]
ANALYTICAL RESULTS
Project: MacSteel-Kloeckner Metals
Pace Project No.: 92446381
Sample: MW-4
Lab ID:
92446381003
Collected:
09/19/19 15:00
Received: 09/20/19 09:00 Matrix: Water
Report
Parameters
Results
Units
Limit
MDL
DF
Prepared Analyzed
CAS No. Qual
6200B MSV
Analytical
Method: SM 6200B
Benzene
ND
ug/L
0.50
0.25
1
09/24/19 17:59
71-43-2
Chlorobenzene
ND
ug/L
0.50
0.25
1
09/24/19 17:59
108-90-7
1,2-Dichlorobenzene
ND
ug/L
0.50
0.25
1
09/24/19 17:59
95-50-1
1,3-Dichlorobenzene
ND
ug/L
0.50
0.25
1
09/24/19 17:59
541-73-1
1,4-Dichlorobenzene
ND
ug/L
0.50
0.25
1
09/24/19 17:59
106-46-7
Diisopropyl ether
ND
ug/L
0.50
0.25
1
09/24/19 17:59
108-20-3
Ethylbenzene
ND
ug/L
0.50
0.25
1
09/24/19 17:59
100-41-4
Isopropylbenzene (Cumene)
ND
ug/L
0.50
0.25
1
09/24/19 17:59
98-82-8
Methyl-tert-butyl ether
ND
ug/L
0.50
0.25
1
09/24/19 17:59
1634-04-4
Naphthalene
ND
ug/L
2.0
1.0
1
09/24/19 17:59
91-20-3
Toluene
ND
ug/L
0.50
0.25
1
09/24/19 17:59
108-88-3
m&p-Xylene
ND
ug/L
1.0
0.50
1
09/24/19 17:59
179601-23-1
o-Xylene
ND
ug/L
0.50
0.25
1
09/24/19 17:59
95-47-6
Surrogates
1,2-Dichloroethane-d4 (S)
87
%
70-130
1
09/24/19 17:59
17060-07-0
4-Bromofluorobenzene (S)
99
%
70-130
1
09/24/19 17:59
460-00-4
Toluene-d8 (S)
105
%
70-130
1
09/24/19 17:59
2037-26-5
Date: 09/30/2019 04:54 PM
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, LLC.
Page 17 of 39

aceAnalytical
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Pace Analytical Services, LLC
9800 Kincey Ave. Suite 100
Huntersville, NC 28078
[phone]
ANALYTICAL RESULTS
Project: MacSteel-Kloeckner Metals
Pace Project No.: 92446381
Sample: DW-1
Lab ID:
92446381004
Collected:
09/19/19 14:00
Received: 09/20/19 09:00 Matrix: Water
Report
Parameters
Results
Units
Limit
MDL
DF
Prepared
Analyzed
CAS No.
Qual
MADEP EPH NC Water
Analytical
Method: MADEP EPH Preparation Method: MADEP EPH
Aliphatic (C09-C18)
ND
ug/L
98.0
98.0
1
09/26/19 16:44
09/28/19 13:57
N2
Aliphatic (C19-C36)
ND
ug/L
98.0
98.0
1
09/26/19 16:44
09/28/19 13:57
N2
Aromatic (C11-C22)
ND
ug/L
98.0
98.0
1
09/26/19 16:44
09/28/19 13:57
N2
Surrogates
Nonatriacontane (S)
69
%
40-140
1
09/26/19 16:44
09/28/19 13:57
7194-86-7
o-Terphenyl (S)
98
%
40-140
1
09/26/19 16:44
09/28/19 13:57
84-15-1
2-Fluorobiphenyl (S)
106
%
40-140
1
09/26/19 16:44
09/28/19 13:57
321-60-8
2-Bromonaphthalene (S)
106
%
40-140
1
09/26/19 16:44
09/28/19 13:57
580-13-2
VPH NC Water
Analytical
Method: MADEP VPH
Aliphatic (C05-008)
ND
ug/L
50.0
50.0
1
09/20/19 19:56
N2
Aliphatic (C09-C12)
ND
ug/L
50.0
50.0
1
09/20/19 19:56
N2
Aliphatic(C09-C12)Adjusted
ND
ug/L
50.0
50.0
1
09/20/19 19:56
N2
Aromatic (C09-C10)
ND
ug/L
50.0
50.0
1
09/20/19 19:56
N2
Surrogates
4-Bromofluorobenzene (FID) (S)
95
%
70-130
1
09/20/19 19:56
460-00-4
4-Bromofluorobenzene (PID) (S)
100
%
70-130
1
09/20/19 19:56
460-00-4
6010 MET ICP
Analytical
Method: EPA 6010D
Preparation Method: EPA 3010A
Lead
ND
ug/L
5.0
2.5
1
09/23/1919:52
09/25/1917:22
7439-92-1
6010 MET ICP, Lab Filtered
Analytical
Method: EPA 6010D
Preparation Method: EPA 3010A
Lead, Dissolved
ND
ug/L
5.0
2.5
1
09/26/19 12:13
09/26/19 16:40
7439-92-1
P4
625 RVE
Analytical
Method: EPA 625.1
Preparation Method:
EPA 625.1
Acenaphthene
ND
ug/L
5.0
1.6
1
09/26/19 14:25
09/26/19 22:11
83-32-9
Acenaphthylene
ND
ug/L
5.0
1.6
1
09/26/19 14:25
09/26/19 22:11
208-96-8
Anthracene
ND
ug/L
5.0
1.7
1
09/26/19 14:25
09/26/19 22:11
120-12-7
Benzo(a)anthracene
ND
ug/L
5.0
1.8
1
09/26/19 14:25
09/26/19 22:11
56-55-3
Benzo(a)pyrene
ND
ug/L
5.0
2.1
1
09/26/19 14:25
09/26/19 22:11
50-32-8
Benzo(b)fluoranthene
ND
ug/L
5.0
1.9
1
09/26/19 14:25
09/26/19 22:11
205-99-2
Benzo(g,h,i)perylene
ND
ug/L
5.0
1.4
1
09/26/19 14:25
09/26/19 22:11
191-24-2
Benzo(k)fluoranthene
ND
ug/L
5.0
1.9
1
09/26/19 14:25
09/26/19 22:11
207-08-9
Chrysene
ND
ug/L
5.0
1.7
1
09/26/19 14:25
09/26/19 22:11
218-01-9
Dibenz(a,h)anthracene
ND
ug/L
5.0
1.6
1
09/26/19 14:25
09/26/19 22:11
53-70-3
Fluoranthene
ND
ug/L
5.0
1.7
1
09/26/19 14:25
09/26/19 22:11
206-44-0
Fluorene
ND
ug/L
5.0
1.6
1
09/26/19 14:25
09/26/19 22:11
86-73-7
Indeno(1,2,3-cd)pyrene
ND
ug/L
5.0
1.6
1
09/26/19 14:25
09/26/19 22:11
193-39-5
2-Methylnaphthalene
ND
ug/L
5.0
1.4
1
09/26/19 14:25
09/26/19 22:11
91-57-6
Naphthalene
ND
ug/L
5.0
1.4
1
09/26/19 14:25
09/26/19 22:11
91-20-3
Phenanthrene
ND
ug/L
5.0
1.7
1
09/26/19 14:25
09/26/19 22:11
85-01-8
Pyrene
ND
ug/L
5.0
2.1
1
09/26/19 14:25
09/26/19 22:11
129-00-0
Surrogates
Nitrobenzene-d5 (S)
77
%
10-120
1
09/26/19 14:25
09/26/19 22:11
4165-60-0
2-Fluorobiphenyl (S)
73
%
15-120
1
09/26/19 14:25
09/26/19 22:11
321-60-8
Terphenyl-d14 (S)
80
%
11-131
1
09/26/19 14:25
09/26/19 22:11
1718-51-0
REPORT OF LABORATORY
ANALYSIS
This report shall not be reproduced, except in full,
Date: 09/30/2019 04:54 PM
without the written consent of Pace Analytical Services, LLC.
Page 18 of 39

aceAnalytical
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Pace Analytical Services, LLC
9800 Kincey Ave. Suite 100
Huntersville, NC 28078
[phone]
ANALYTICAL RESULTS
Project: MacSteel-Kloeckner Metals
Pace Project No.: 92446381
Sample: DW-1
Lab ID:
92446381004
Collected:
09/19/19 14:00
Received: 09/20/19 09:00 Matrix: Water
Report
Parameters
Results
Units
Limit
MDL
DF
Prepared Analyzed
CAS No. Qual
6200B MSV
Analytical
Method: SM 6200B
Benzene
ND
ug/L
0.50
0.25
1
09/24/19 18:17
71-43-2
Chlorobenzene
ND
ug/L
0.50
0.25
1
09/24/19 18:17
108-90-7
1,2-Dichlorobenzene
ND
ug/L
0.50
0.25
1
09/24/19 18:17
95-50-1
1,3-Dichlorobenzene
ND
ug/L
0.50
0.25
1
09/24/19 18:17
541-73-1
1,4-Dichlorobenzene
ND
ug/L
0.50
0.25
1
09/24/19 18:17
106-46-7
Diisopropyl ether
ND
ug/L
0.50
0.25
1
09/24/19 18:17
108-20-3
Ethylbenzene
ND
ug/L
0.50
0.25
1
09/24/19 18:17
100-41-4
Isopropylbenzene (Cumene)
ND
ug/L
0.50
0.25
1
09/24/19 18:17
98-82-8
Methyl-tert-butyl ether
ND
ug/L
0.50
0.25
1
09/24/19 18:17
1634-04-4
Naphthalene
ND
ug/L
2.0
1.0
1
09/24/19 18:17
91-20-3
Toluene
ND
ug/L
0.50
0.25
1
09/24/19 18:17
108-88-3
m&p-Xylene
ND
ug/L
1.0
0.50
1
09/24/19 18:17
179601-23-1
o-Xylene
ND
ug/L
0.50
0.25
1
09/24/19 18:17
95-47-6
Surrogates
1,2-Dichloroethane-d4 (S)
87
%
70-130
1
09/24/19 18:17
17060-07-0
4-Bromofluorobenzene (S)
103
%
70-130
1
09/24/19 18:17
460-00-4
Toluene-d8 (S)
113
%
70-130
1
09/24/19 18:17
2037-26-5
Date: 09/30/2019 04:54 PM
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, LLC.
Page 19 of 39

aceAnalytical
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Pace Analytical Services, LLC
9800 Kincey Ave. Suite 100
Huntersville, NC 28078
[phone]
ANALYTICAL RESULTS
Project: MacSteel-Kloeckner Metals
Pace Project No.: 92446381
Sample: RW-1
Lab ID:
92446381005
Collected:
09/19/19 14:40
Received: 09/20/19 09:00 Matrix: Water
Report
Parameters
Results
Units
Limit
MDL
DF
Prepared
Analyzed
CAS No.
Qual
MADEP EPH NC Water
Analytical
Method: MADEP EPH Preparation Method: MADEP EPH
Aliphatic (C09-C18)
1000
ug/L
98.0
98.0
1
09/26/19 16:44
09/28/19 14:24
N2
Aliphatic (C19-C36)
217
ug/L
98.0
98.0
1
09/26/19 16:44
09/28/19 14:24
N2
Aromatic (C11-C22)
1450
ug/L
98.0
98.0
1
09/26/19 16:44
09/28/19 14:24
N2
Surrogates
Nonatriacontane (S)
57
%
40-140
1
09/26/19 16:44
09/28/19 14:24
7194-86-7
o-Terphenyl (S)
103
%
40-140
1
09/26/19 16:44
09/28/19 14:24
84-15-1
2-Fluorobiphenyl (S)
121
%
40-140
1
09/26/19 16:44
09/28/19 14:24
321-60-8
2-Bromonaphthalene (S)
122
%
40-140
1
09/26/19 16:44
09/28/19 14:24
580-13-2
VPH NC Water
Analytical
Method: MADEP VPH
Aliphatic (C05-008)
ND
ug/L
50.0
50.0
1
09/20/19 20:25
N2
Aliphatic (C09-C12)
426
ug/L
50.0
50.0
1
09/20/19 20:25
N2
Aliphatic(C09-C12) Adjusted
236
ug/L
50.0
50.0
1
09/20/19 20:25
N2
Aromatic (C09-C10)
190
ug/L
50.0
50.0
1
09/20/19 20:25
N2
Surrogates
4-Bromofluorobenzene (FID) (S)
105
%
70-130
1
09/20/19 20:25
460-00-4
4-Bromofluorobenzene (PID) (S)
100
%
70-130
1
09/20/19 20:25
460-00-4
6010 MET ICP
Analytical
Method: EPA 6010D
Preparation Method: EPA 3010A
Lead
ND
ug/L
5.0
2.5
1
09/23/1919:52
09/25/1917:25
7439-92-1
6010 MET ICP, Lab Filtered
Analytical
Method: EPA 6010D
Preparation Method: EPA 3010A
Lead, Dissolved
ND
ug/L
5.0
2.5
1
09/26/19 12:13
09/26/19 16:43
7439-92-1
P4
625 RVE
Analytical
Method: EPA 625.1
Preparation Method:
EPA 625.1
Acenaphthene
ND
ug/L
5.0
1.6
1
09/26/19 14:25
09/26/19 22:37
83-32-9
Acenaphthylene
ND
ug/L
5.0
1.6
1
09/26/19 14:25
09/26/19 22:37
208-96-8
Anthracene
ND
ug/L
5.0
1.7
1
09/26/19 14:25
09/26/19 22:37
120-12-7
Benzo(a)anthracene
ND
ug/L
5.0
1.8
1
09/26/19 14:25
09/26/19 22:37
56-55-3
Benzo(a)pyrene
ND
ug/L
5.0
2.1
1
09/26/19 14:25
09/26/19 22:37
50-32-8
Benzo(b)fluoranthene
ND
ug/L
5.0
1.9
1
09/26/19 14:25
09/26/19 22:37
205-99-2
Benzo(g,h,i)perylene
ND
ug/L
5.0
1.4
1
09/26/19 14:25
09/26/19 22:37
191-24-2
Benzo(k)fluoranthene
ND
ug/L
5.0
1.9
1
09/26/19 14:25
09/26/19 22:37
207-08-9
Chrysene
ND
ug/L
5.0
1.7
1
09/26/19 14:25
09/26/19 22:37
218-01-9
Dibenz(a,h)anthracene
ND
ug/L
5.0
1.6
1
09/26/19 14:25
09/26/19 22:37
53-70-3
Fluoranthene
ND
ug/L
5.0
1.7
1
09/26/19 14:25
09/26/19 22:37
206-44-0
Fluorene
ND
ug/L
5.0
1.6
1
09/26/19 14:25
09/26/19 22:37
86-73-7
Indeno(1,2,3-cd)pyrene
ND
ug/L
5.0
1.6
1
09/26/19 14:25
09/26/19 22:37
193-39-5
2-Methylnaphthalene
42.9
ug/L
5.0
1.4
1
09/26/19 14:25
09/26/19 22:37
91-57-6
Naphthalene
ND
ug/L
5.0
1.4
1
09/26/19 14:25
09/26/19 22:37
91-20-3
Phenanthrene
45.9
ug/L
5.0
1.7
1
09/26/19 14:25
09/26/19 22:37
85-01-8
Pyrene
3.4.1
ug/L
5.0
2.1
1
09/26/19 14:25
09/26/19 22:37
129-00-0
Surrogates
Nitrobenzene-d5 (S)
83
%
10-120
1
09/26/19 14:25
09/26/19 22:37
4165-60-0
2-Fluorobiphenyl (S)
74
%
15-120
1
09/26/19 14:25
09/26/19 22:37
321-60-8
Terphenyl-d14 (S)
105
%
11-131
1
09/26/19 14:25
09/26/19 22:37
1718-51-0
REPORT OF LABORATORY
ANALYSIS
This report shall not be reproduced, except in full,
Date: 09/30/2019 04:54 PM
without the written consent of Pace Analytical Services, LLC.
Page 20 of 39

aceAnalytical
—pacelabs.com
Pace Analytical Services, LLC
9800 Kincey Ave. Suite 100
Huntersville, NC 28078
[phone]
ANALYTICAL RESULTS
Project: MacSteel-Kloeckner Metals
Pace Project No.: 92446381
Sample: RW-1
Lab ID:
92446381005
Collected:
09/19/19 14:40
Received: 09/20/19 09:00 Matrix: Water
Report
Parameters
Results
Units
Limit
MDL
DF
Prepared Analyzed
CAS No. Qual
6200B MSV
Analytical
Method: SM 6200B
Benzene
0.33J
ug/L
0.50
0.25
1
09/25/19 09:54
71-43-2
Chlorobenzene
ND
ug/L
0.50
0.25
1
09/25/19 09:54
108-90-7
1,2-Dichlorobenzene
ND
ug/L
0.50
0.25
1
09/25/19 09:54
95-50-1
1,3-Dichlorobenzene
ND
ug/L
0.50
0.25
1
09/25/19 09:54
541-73-1
1,4-Dichlorobenzene
ND
ug/L
0.50
0.25
1
09/25/19 09:54
106-46-7
Diisopropyl ether
ND
ug/L
0.50
0.25
1
09/25/19 09:54
108-20-3
Ethylbenzene
ND
ug/L
0.50
0.25
1
09/25/19 09:54
100-41-4
Isopropylbenzene (Cumene)
2.1
ug/L
0.50
0.25
1
09/25/19 09:54
98-82-8
Methyl-tert-butyl ether
3.2
ug/L
0.50
0.25
1
09/25/19 09:54
1634-04-4
Naphthalene
8.9
ug/L
2.0
1.0
1
09/25/19 09:54
91-20-3
Toluene
ND
ug/L
0.50
0.25
1
09/25/19 09:54
108-88-3
m&p-Xylene
ND
ug/L
1.0
0.50
1
09/25/19 09:54
179601-23-1
o-Xylene
ND
ug/L
0.50
0.25
1
09/25/19 09:54
95-47-6
Surrogates
1,2-Dichloroethane-d4 (S)
92
%
70-130
1
09/25/19 09:54
17060-07-0
4-Bromofluorobenzene (S)
95
%
70-130
1
09/25/19 09:54
460-00-4
Toluene-d8 (S)
108
%
70-130
1
09/25/19 09:54
2037-26-5
Date: 09/30/2019 04:54 PM
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, LLC.
Page 21 of 39

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ANALYTICAL RESULTS
Project: MacSteel-Kloeckner Metals
Pace Project No.: 92446381
Sample: DUP-1
Lab ID:
92446381006
Collected:
09/19/19 00:00
Received: 09/20/19 09:00 Matrix: Water
Report
Parameters
Results
Units
Limit
MDL
DF
Prepared
Analyzed
CAS No.
Qual
MADEP EPH NC Water
Analytical
Method: MADEP EPH Preparation Method: MADEP EPH
Aliphatic (C09-C18)
ND
ug/L
99.0
99.0
1
09/26/19 16:44
09/28/19 14:52
N2
Aliphatic (C19-C36)
ND
ug/L
99.0
99.0
1
09/26/19 16:44
09/28/19 14:52
N2
Aromatic (C11-C22)
ND
ug/L
99.0
99.0
1
09/26/19 16:44
09/28/19 14:52
N2
Surrogates
Nonatriacontane (S)
81
%
40-140
1
09/26/19 16:44
09/28/19 14:52
7194-86-7
o-Terphenyl (S)
105
%
40-140
1
09/26/19 16:44
09/28/19 14:52
84-15-1
2-Fluorobiphenyl (S)
118
%
40-140
1
09/26/19 16:44
09/28/19 14:52
321-60-8
2-Bromonaphthalene (S)
119
%
40-140
1
09/26/19 16:44
09/28/19 14:52
580-13-2
VPH NC Water
Analytical
Method: MADEP VPH
Aliphatic (C05-008)
ND
ug/L
50.0
50.0
1
09/21/19 15:31
N2
Aliphatic (C09-C12)
ND
ug/L
50.0
50.0
1
09/21/19 15:31
N2
Aliphatic(C09-C12)Adjusted
ND
ug/L
50.0
50.0
1
09/21/19 15:31
N2
Aromatic (C09-C10)
ND
ug/L
50.0
50.0
1
09/21/19 15:31
N2
Surrogates
4-Bromofluorobenzene (FID) (S)
91
%
70-130
1
09/21/19 15:31
460-00-4
4-Bromofluorobenzene (PID) (S)
96
%
70-130
1
09/21/19 15:31
460-00-4
6010 MET ICP
Analytical
Method: EPA 6010D
Preparation Method: EPA 3010A
Lead
ND
ug/L
5.0
2.5
1
09/23/1919:52
09/25/1917:28
7439-92-1
6010 MET ICP, Lab Filtered
Analytical
Method: EPA 6010D
Preparation Method: EPA 3010A
Lead, Dissolved
ND
ug/L
5.0
2.5
1
09/26/19 12:13
09/26/19 16:46
7439-92-1
P4
625 RVE
Analytical
Method: EPA 625.1
Preparation Method:
EPA 625.1
Acenaphthene
ND
ug/L
5.0
1.6
1
09/26/19 14:25
09/26/19 23:02
83-32-9
Acenaphthylene
ND
ug/L
5.0
1.6
1
09/26/19 14:25
09/26/19 23:02
208-96-8
Anthracene
ND
ug/L
5.0
1.7
1
09/26/19 14:25
09/26/19 23:02
120-12-7
Benzo(a)anthracene
ND
ug/L
5.0
1.8
1
09/26/19 14:25
09/26/19 23:02
56-55-3
Benzo(a)pyrene
ND
ug/L
5.0
2.1
1
09/26/19 14:25
09/26/19 23:02
50-32-8
Benzo(b)fluoranthene
ND
ug/L
5.0
1.9
1
09/26/19 14:25
09/26/19 23:02
205-99-2
Benzo(g,h,i)perylene
ND
ug/L
5.0
1.4
1
09/26/19 14:25
09/26/19 23:02
191-24-2
Benzo(k)fluoranthene
ND
ug/L
5.0
1.9
1
09/26/19 14:25
09/26/19 23:02
207-08-9
Chrysene
ND
ug/L
5.0
1.7
1
09/26/19 14:25
09/26/19 23:02
218-01-9
Dibenz(a,h)anthracene
ND
ug/L
5.0
1.6
1
09/26/19 14:25
09/26/19 23:02
53-70-3
Fluoranthene
ND
ug/L
5.0
1.7
1
09/26/19 14:25
09/26/19 23:02
206-44-0
Fluorene
ND
ug/L
5.0
1.6
1
09/26/19 14:25
09/26/19 23:02
86-73-7
Indeno(1,2,3-cd)pyrene
ND
ug/L
5.0
1.6
1
09/26/19 14:25
09/26/19 23:02
193-39-5
2-Methylnaphthalene
ND
ug/L
5.0
1.4
1
09/26/19 14:25
09/26/19 23:02
91-57-6
Naphthalene
ND
ug/L
5.0
1.4
1
09/26/19 14:25
09/26/19 23:02
91-20-3
Phenanthrene
ND
ug/L
5.0
1.7
1
09/26/19 14:25
09/26/19 23:02
85-01-8
Pyrene
ND
ug/L
5.0
2.1
1
09/26/19 14:25
09/26/19 23:02
129-00-0
Surrogates
Nitrobenzene-d5 (S)
67
%
10-120
1
09/26/19 14:25
09/26/19 23:02
4165-60-0
2-Fluorobiphenyl (S)
76
%
15-120
1
09/26/19 14:25
09/26/19 23:02
321-60-8
Terphenyl-d14 (S)
117
%
11-131
1
09/26/19 14:25
09/26/19 23:02
1718-51-0
REPORT OF LABORATORY
ANALYSIS
This report shall not be reproduced, except in full,
Date: 09/30/2019 04:54 PM
without the written consent of Pace Analytical Services, LLC.
Page 22 of 39

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Huntersville, NC 28078
[phone]
ANALYTICAL RESULTS
Project: MacSteel-Kloeckner Metals
Pace Project No.: 92446381
Sample: DUP-1
Lab ID:
92446381006
Collected:
09/19/19 00:00
Received: 09/20/19 09:00 Matrix: Water
Report
Parameters
Results
Units
Limit
MDL
DF
Prepared Analyzed
CAS No. Qual
6200B MSV
Analytical
Method: SM 6200B
Benzene
ND
ug/L
0.50
0.25
1
09/24/19 18:34
71-43-2
Chlorobenzene
ND
ug/L
0.50
0.25
1
09/24/19 18:34
108-90-7
1,2-Dichlorobenzene
ND
ug/L
0.50
0.25
1
09/24/19 18:34
95-50-1
1,3-Dichlorobenzene
ND
ug/L
0.50
0.25
1
09/24/19 18:34
541-73-1
1,4-Dichlorobenzene
ND
ug/L
0.50
0.25
1
09/24/19 18:34
106-46-7
Diisopropyl ether
ND
ug/L
0.50
0.25
1
09/24/19 18:34
108-20-3
Ethylbenzene
ND
ug/L
0.50
0.25
1
09/24/19 18:34
100-41-4
Isopropylbenzene (Cumene)
ND
ug/L
0.50
0.25
1
09/24/19 18:34
98-82-8
Methyl-tert-butyl ether
ND
ug/L
0.50
0.25
1
09/24/19 18:34
1634-04-4
Naphthalene
ND
ug/L
2.0
1.0
1
09/24/19 18:34
91-20-3
Toluene
ND
ug/L
0.50
0.25
1
09/24/19 18:34
108-88-3
m&p-Xylene
ND
ug/L
1.0
0.50
1
09/24/19 18:34
179601-23-1
o-Xylene
ND
ug/L
0.50
0.25
1
09/24/19 18:34
95-47-6
Surrogates
1,2-Dichloroethane-d4 (S)
84
%
70-130
1
09/24/19 18:34
17060-07-0
4-Bromofluorobenzene (S)
102
%
70-130
1
09/24/19 18:34
460-00-4
Toluene-d8 (S)
98
%
70-130
1
09/24/19 18:34
2037-26-5
Date: 09/30/2019 04:54 PM
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, LLC.
Page 23 of 39

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9800 Kincey Ave. Suite 100
Huntersville, NC 28078
[phone]
QUALITY CONTROL DATA
Project: MacSteel-Kloeckner Metals
Pace Project No.: 92446381
QC Batch: 498994 Analysis Method: MADEP VPH
QC Batch Method: MADEP VPH Analysis Description: VPH NC Water
Associated Lab Samples: 92446381001, 92446381002, 92446381003, 92446381004, 92446381005
METHOD BLANK: 2685680 Matrix: Water
Associated Lab Samples: 92446381001, 92446381002, 92446381003, 92446381004, 92446381005
Blank Reporting
Parameter Units Result Limit MDL Analyzed Qualifiers
50.0 09/20/19 13:03 N2
50.0 09/20/19 13:03 N2
50.0 09/20/19 13:03 N2
09/20/19 13:03
09/20/19 13:03
Aliphatic (C05-008)
ug/L
ND
50.0
Aliphatic (C09-C12)
ug/L
ND
50.0
Aromatic (C09-C10)
ug/L
ND
50.0
4-Bromofluorobenzene (FID) (S)
%
91
70-130
4-Bromofluorobenzene (PID) (S)
%
97
70-130
LABORATORY CONTROL SAMPLE & LCSD:
2685681
2685682
Spike
LCS
LCSD
LCS
LCSD
% Rec Max
Parameter
Units
Conc.
Result
Result
% Rec
% Rec
Limits RPD RPD Qualifiers
Aliphatic (C05-CO8)
ug/L
300
320
320
107
107
70-130 0 25 N2
Aliphatic (C09-C12)
ug/L
300
314
316
105
105
30-130 1 25 N2
Aromatic (C09-C10)
ug/L
100
103
104
103
104
70-130 1 25 N2
4-Bromofluorobenzene (FID) (S)
%
100
101
70-130
4-Bromofluorobenzene (PID) (S)
%
106
107
70-130
Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result.
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
Date: 09/30/2019 04:54 PM without the written consent of Pace Analytical Services, LLC.
Page 24 of 39

aceAnalytical
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Pace Analytical Services, LLC
9800 Kincey Ave. Suite 100
Huntersville, NC 28078
[phone]
QUALITY CONTROL DATA
Project: MacSteel-Kloeckner Metals
Pace Project No.: 92446381
QC Batch: 499164 Analysis Method: MADEP VPH
QC Batch Method: MADEP VPH Analysis Description: VPH NC Water
Associated Lab Samples: 92446381006
METHOD BLANK: 2686600
Associated Lab Samples: 92446381006
Parameter
Aliphatic (C05-008)
Aliphatic (C09-C12)
Aromatic (C09-C10)
4-Bromofluorobenzene (FID) (S)
4-Bromofluorobenzene (PID) (S)
Matrix: Water
Units
Blank
Result
Reporting
Limit
MDL Analyzed Qualifiers
ug/L
ND
50.0
50.0 09/21/1914:32 N2
ug/L
ND
50.0
50.0 09/21/1914:32 N2
ug/L
ND
50.0
50.0 09/21/1914:32 N2
%
93
70-130
09/21/1914:32
%
98
70-130
09/21/1914:32
LABORATORY CONTROL SAMPLE & LCSD:
2686601
2686602
Spike
LCS
LCSD
LCS
LCSD
% Rec Max
Parameter
Units
Conc.
Result
Result
% Rec
% Rec
Limits RPD RPD Qualifiers
Aliphatic (C05-CO8)
ug/L
300
319
316
106
105
70-130 1 25 N2
Aliphatic (C09-C12)
ug/L
300
310
311
103
104
30-130 1 25 N2
Aromatic (C09-C10)
ug/L
100
103
103
103
103
70-130 0 25 N2
4-Bromofluorobenzene (FID) (S)
%
101
99
70-130
4-Bromofluorobenzene (PID) (S)
%
106
105
70-130
Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result.
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
Date: 09/30/2019 04:54 PM without the written consent of Pace Analytical Services, LLC.
Page 25 of 39

aceAnalytical
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Pace Analytical Services, LLC
9800 Kincey Ave. Suite 100
Huntersville, NC 28078
[phone]
QUALITY CONTROL DATA
Project: MacSteel-Kloeckner Metals
Pace Project No.: 92446381
QC Batch: 499394
Analysis Method: EPA 6010D
QC Batch Method: EPA 3010A
Analysis Description: 6010 MET
Associated Lab Samples: 92446381001, 92446381002,
92446381003, 92446381004, 92446381005, 92446381006
METHOD BLANK: 2687570
Matrix: Water
Associated Lab Samples: 92446381001, 92446381002,
92446381003, 92446381004, 92446381005, 92446381006
Blank Reporting
Parameter Units
Result Limit MDL
Analyzed Qualifiers
Lead ug/L
ND 5.0
2.5 09/25/1916:49
LABORATORY CONTROL SAMPLE: 2687571
Spike LCS LCS
% Rec
Parameter Units
Conc. Result % Rec
Limits Qualifiers
Lead ug/L
500 492 98
80-120
MATRIX SPIKE & MATRIX SPIKE DUPLICATE: 2687572 2687573
MS MSD
92446381001
Spike Spike MS MSD
MS MSD % Rec Max
Parameter Units Result
Conc. Conc. Result Result
% Rec % Rec Limits RPD RPD Qual
Lead ug/L ND
500 500 501 497
100 99 75-125 1 20
Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result.
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
Date: 09/30/2019 04:54 PM without the written consent of Pace Analytical Services, LLC.
Page 26 of 39

aceAnalytical
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Pace Analytical Services, LLC
9800 Kincey Ave. Suite 100
Huntersville, NC 28078
[phone]
QUALITY CONTROL DATA
Project: MacSteel-Kloeckner Metals
Pace Project No.: 92446381
QC Batch: 500062
Analysis Method: EPA 6010D
QC Batch Method: EPA 3010A
Analysis Description: 6010 MET Filtered Diss.
Associated Lab Samples: 92446381001, 92446381002,
92446381003, 92446381004, 92446381005, 92446381006
METHOD BLANK: 2690595
Matrix: Water
Associated Lab Samples: 92446381001, 92446381002,
92446381003, 92446381004, 92446381005, 92446381006
Blank Reporting
Parameter Units
Result Limit MDL Analyzed Qualifiers
Lead, Dissolved ug/L
ND 5.0 2.5 09/26/19 16:05
LABORATORY CONTROL SAMPLE: 2690596
Spike LCS LCS % Rec
Parameter Units
Conc. Result % Rec Limits Qualifiers
Lead, Dissolved ug/L
500 524 105 80-120
MATRIX SPIKE & MATRIX SPIKE DUPLICATE: 2690597 2690598
MS MSD
92446381001
Spike Spike MS MSD MS MSD % Rec Max
Parameter Units Result
Conc. Conc. Result Result % Rec % Rec Limits RPD RPD Qual
Lead, Dissolved ug/L ND
500 500 493 472 99 94 75-125 4 20
Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result.
REPORT OF LABORATORY ANALYSIS
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Date: 09/30/2019 04:54 PM without the written consent of Pace Analytical Services, LLC.
Page 27 of 39

aceAnalytical
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Pace Analytical Services, LLC
9800 Kincey Ave. Suite 100
Huntersville, NC 28078
[phone]
QUALITY CONTROL DATA
Project: MacSteel-Kloeckner Metals
Pace Project No.: 92446381
QC Batch: 499501 Analysis Method: SM 6200B
QC Batch Method: SM 6200B Analysis Description: 6200E MSV
Associated Lab Samples: 92446381001, 92446381002, 92446381003, 92446381004, 92446381006
METHOD BLANK: 2687917 Matrix: Water
Associated Lab Samples: 92446381001, 92446381002, 92446381003, 92446381004, 92446381006
Blank Reporting
Parameter Units Result Limit MDL
Analyzed
1,2-Dichlorobenzene
ug/L
ND
0.50
0.25
09/24/19 16:13
1,3-Dichlorobenzene
ug/L
ND
0.50
0.25
09/24/19 16:13
1,4-Dichlorobenzene
ug/L
ND
0.50
0.25
09/24/19 16:13
Benzene
ug/L
ND
0.50
0.25
09/24/19 16:13
Chlorobenzene
ug/L
ND
0.50
0.25
09/24/19 16:13
Diisopropyl ether
ug/L
ND
0.50
0.25
09/24/19 16:13
Ethylbenzene
ug/L
ND
0.50
0.25
09/24/19 16:13
Isopropylbenzene (Cumene)
ug/L
ND
0.50
0.25
09/24/19 16:13
m&p-Xylene
ug/L
ND
1.0
0.50
09/24/19 16:13
Methyl-tert-butyl ether
ug/L
ND
0.50
0.25
09/24/19 16:13
Naphthalene
ug/L
ND
2.0
1.0
09/24/19 16:13
o-Xylene
ug/L
ND
0.50
0.25
09/24/19 16:13
Toluene
ug/L
ND
0.50
0.25
09/24/19 16:13
1,2-Dichloroethane-d4 (S)
%
87
70-130
09/24/19 16:13
4-Bromofluorobenzene (S)
%
105
70-130
09/24/19 16:13
Toluene-d8 (S)
%
109
70-130
09/24/19 16:13
LABORATORY CONTROL SAMPLE:
Parameter
2687918
Units
Spike
Conc.
LCS
Result
LCS
% Rec
% Rec
Limits
1,2-Dichlorobenzene
ug/L
50
49.3
99
60-140
1,3-Dichlorobenzene
ug/L
50
48.8
98
60-140
1,4-Dichlorobenzene
ug/L
50
46.2
92
60-140
Benzene
ug/L
50
51.1
102
60-140
Chlorobenzene
ug/L
50
48.9
98
60-140
Diisopropyl ether
ug/L
50
51.1
102
60-140
Ethylbenzene
ug/L
50
49.8
100
60-140
Isopropylbenzene (Cumene)
ug/L
50
52.9
106
60-140
m&p-Xylene
ug/L
100
103
103
60-140
Methyl-tert-butyl ether
ug/L
50
44.2
88
60-140
Naphthalene
ug/L
50
48.5
97
60-140
o-Xylene
ug/L
50
51.8
104
60-140
Toluene
ug/L
50
40.1
80
60-140
1,2-Dichloroethane-d4 (S)
%
99
70-130
4-Bromofluorobenzene (S)
%
104
70-130
Toluene-d8 (S)
%
80
70-130
Qualifiers
Qualifiers
Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result.
REPORT OF LABORATORY ANALYSIS
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Date: 09/30/2019 04:54 PM without the written consent of Pace Analytical Services, LLC. Page 28 of 39

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Pace Analytical Services, LLC
9800 Kincey Ave. Suite 100
Huntersville, NC 28078
[phone]
QUALITY CONTROL DATA
Project: MacSteel-Kloeckner Metals
Pace Project No.: 92446381
MATRIX SPIKE & MATRIX SPIKE DUPLICATE:
2687919
2687920
MS
MSD
92446234008
Spike
Spike
MS
MSD
MS
MSD
% Rec
Max
Parameter
Units Result
Conc.
Conc.
Result
Result
% Rec
% Rec
Limits
RPD
RPD Qual
1,2-Dichlorobenzene
ug/L
ND
250
250
226
255
90
102
60-140
12
30
1,3-Dichlorobenzene
ug/L
ND
250
250
236
250
94
100
60-140
6
30
1,4-Dichlorobenzene
ug/L
ND
250
250
226
245
90
98
60-140
8
30
Benzene
ug/L
225
250
250
428
429
81
82
60-140
0
30
Chlorobenzene
ug/L
ND
250
250
245
252
98
101
60-140
2
30
Diisopropyl ether
ug/L
ND
250
250
268
287
107
115
60-140
7
30
Ethylbenzene
ug/L
351
250
250
591
602
96
101
60-140
2
30
Isopropylbenzene
ug/L
26.1
250
250
289
251
105
90
60-140
14
30
(Cumene)
m&p-Xylene
ug/L
1850
500
500
2330
2290
96
88
60-140
2
30
Methyl-tert-butyl ether
ug/L
ND
250
250
235
256
94
102
60-140
9
30
Naphthalene
ug/L
106
250
250
385
372
112
106
60-140
4
30
o-Xylene
ug/L
956
250
250
1150
964
76
3
60-140
17
30 M1
Toluene
ug/L
1950
250
250
2060
2070
45
49
60-140
0
30 M1
1,2-Dichloroethane-d4 (S)
%
98
101
70-130
4-Bromofluorobenzene (S)
%
102
84
70-130
Toluene-d8 (S)
%
98
97
70-130
Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result.
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
Date: 09/30/2019 04:54 PM without the written consent of Pace Analytical Services, LLC.
Page 29 of 39

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Pace Analytical Services, LLC
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Huntersville, NC 28078
[phone]
QUALITY CONTROL DATA
Project: MacSteel-Kloeckner Metals
Pace Project No.: 92446381
QC Batch: 499713 Analysis Method: SM 6200B
QC Batch Method: SM 6200B Analysis Description: 6200E MSV
Associated Lab Samples: 92446381005
METHOD BLANK: 2688874
Associated Lab Samples: 92446381005
Parameter
Units
1,2-Dichlorobenzene
ug/L
1,3-Dichlorobenzene
ug/L
1,4-Dichlorobenzene
ug/L
Benzene
ug/L
Chlorobenzene
ug/L
Diisopropyl ether
ug/L
Ethylbenzene
ug/L
Isopropylbenzene (Cumene)
ug/L
m&p-Xylene
ug/L
Methyl-tert-butyl ether
ug/L
Naphthalene
ug/L
o-Xylene
ug/L
Toluene
ug/L
1,2-Dichloroethane-d4 (S)
%
4-Bromofluorobenzene (S)
%
Toluene-d8 (S)
%
Matrix: Water
Blank
Result
Reporting
Limit
MDL
Analyzed
ND
0.50
0.25
09/25/19 09:36
ND
0.50
0.25
09/25/19 09:36
ND
0.50
0.25
09/25/19 09:36
ND
0.50
0.25
09/25/19 09:36
ND
0.50
0.25
09/25/19 09:36
ND
0.50
0.25
09/25/19 09:36
ND
0.50
0.25
09/25/19 09:36
ND
0.50
0.25
09/25/19 09:36
ND
1.0
0.50
09/25/19 09:36
ND
0.50
0.25
09/25/19 09:36
ND
2.0
1.0
09/25/19 09:36
ND
0.50
0.25
09/25/19 09:36
ND
0.50
0.25
09/25/19 09:36
86
70-130
09/25/19 09:36
123
70-130
09/25/19 09:36
94
70-130
09/25/19 09:36
LABORATORY CONTROL SAMPLE:
Parameter
2688875
Units
Spike
Conc.
1,2-Dichlorobenzene
ug/L
50
1,3-Dichlorobenzene
ug/L
50
1,4-Dichlorobenzene
ug/L
50
Benzene
ug/L
50
Chlorobenzene
ug/L
50
Diisopropyl ether
ug/L
50
Ethylbenzene
ug/L
50
Isopropylbenzene (Cumene)
ug/L
50
m&p-Xylene
ug/L
100
Methyl-tert-butyl ether
ug/L
50
Naphthalene
ug/L
50
o-Xylene
ug/L
50
Toluene
ug/L
50
1,2-Dichloroethane-d4 (S)
%
4-Bromofluorobenzene (S)
%
Toluene-d8 (S)
%
LCS
Result
LCS
% Rec
% Rec
Limits
47.2
94
60-140
47.5
95
60-140
46.4
93
60-140
48.3
97
60-140
47.5
95
60-140
53.6
107
60-140
47.3
95
60-140
44.9
90
60-140
88.9
89
60-140
46.3
93
60-140
51.9
104
60-140
43.5
87
60-140
50.5
101
60-140
97
70-130
89
70-130
108
70-130
Qualifiers
Qualifiers
Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result.
REPORT OF LABORATORY ANALYSIS
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Date: 09/30/2019 04:54 PM without the written consent of Pace Analytical Services, LLC.
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[phone]
QUALITY CONTROL DATA
Project: MacSteel-Kloeckner Metals
Pace Project No.: 92446381
MATRIX SPIKE & MATRIX SPIKE DUPLICATE: 2688876
2688877
MS
MSD
92446413001
Spike
Spike
MS
MSD
MS
MSD
% Rec
Max
Parameter
Units
Result
Conc.
Conc.
Result
Result
% Rec
% Rec
Limits
RPD
RPD Qual
1,2-Dichlorobenzene
ug/L
ND
400
400
402
396
100
99
60-140
2
30
1,3-Dichlorobenzene
ug/L
ND
400
400
402
387
100
97
60-140
4
30
1,4-Dichlorobenzene
ug/L
ND
400
400
374
382
93
95
60-140
2
30
Benzene
ug/L
71.9
400
400
495
574
106
126
60-140
15
30
Chlorobenzene
ug/L
ND
400
400
386
390
97
97
60-140
1
30
Diisopropyl ether
ug/L
ND
400
400
382
395
95
99
60-140
4
30
Ethylbenzene
ug/L
1740
400
400
2130
1980
98
62
60-140
7
30
Isopropylbenzene
ug/L
60.4
400
400
489
495
107
109
60-140
1
30
(Cumene)
m&p-Xylene
ug/L
4080
800
800
4870
4350
98
33
60-140
11
30 M1
Methyl-tert-butyl ether
ug/L
ND
400
400
366
373
91
93
60-140
2
30
Naphthalene
ug/L
226
400
400
641
662
104
109
60-140
3
30
o-Xylene
ug/L
1190
400
400
1550
1600
90
103
60-140
3
30
Toluene
ug/L
483
400
400
712
911
57
107
60-140
25
30 M1
1,2-Dichloroethane-d4 (S)
%
106
105
70-130
4-Bromofluorobenzene (S)
%
102
103
70-130
Toluene-d8 (S)
%
96
113
70-130
Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result.
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
Date: 09/30/2019 04:54 PM without the written consent of Pace Analytical Services, LLC.
Page 31 of 39

aceAnalytical
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Pace Analytical Services, LLC
9800 Kincey Ave. Suite 100
Huntersville, NC 28078
[phone]
QUALITY CONTROL DATA
Project: MacSteel-Kloeckner Metals
Pace Project No.: 92446381
QC Batch: 500081 Analysis Method: EPA 625.1
QC Batch Method: EPA 625.1 Analysis Description: 625 MSS
Associated Lab Samples: 92446381001, 92446381002, 92446381003, 92446381004, 92446381005, 92446381006
METHOD BLANK: 2690750 Matrix: Water
Associated Lab Samples: 92446381001, 92446381002, 92446381003, 92446381004, 92446381005, 92446381006
Blank Reporting
Parameter Units Result Limit MDL Analyzed Qualifiers
2-Methylnaphthalene
ug/L
ND
5.0
1.4
09/26/19 16:14
Acenaphthene
ug/L
ND
5.0
1.6
09/26/19 16:14
Acenaphthylene
ug/L
ND
5.0
1.6
09/26/19 16:14
Anthracene
ug/L
ND
5.0
1.7
09/26/19 16:14
Benzo(a)anthracene
ug/L
ND
5.0
1.8
09/26/19 16:14
Benzo(a)pyrene
ug/L
ND
5.0
2.1
09/26/19 16:14
Benzo(b)fluoranthene
ug/L
ND
5.0
1.9
09/26/19 16:14
Benzo(g,h,i)perylene
ug/L
ND
5.0
1.4
09/26/19 16:14
Benzo(k)fluoranthene
ug/L
ND
5.0
1.9
09/26/19 16:14
Chrysene
ug/L
ND
5.0
1.7
09/26/19 16:14
Dibenz(a,h)anthracene
ug/L
ND
5.0
1.6
09/26/19 16:14
Fluoranthene
ug/L
ND
5.0
1.7
09/26/19 16:14
Fluorene
ug/L
ND
5.0
1.6
09/26/19 16:14
Indeno(1,2,3-cd)pyrene
ug/L
ND
5.0
1.6
09/26/19 16:14
Naphthalene
ug/L
ND
5.0
1.4
09/26/19 16:14
Phenanthrene
ug/L
ND
5.0
1.7
09/26/19 16:14
Pyrene
ug/L
ND
5.0
2.1
09/26/19 16:14
2,4,6-Tribromophenol (S)
%
28
10-137
09/26/19 16:14
2-Fluorobiphenyl (S)
%
51
15-120
09/26/19 16:14
2-Fluorophenol (S)
%
31
10-120
09/26/19 16:14
Nitrobenzene-d5 (S)
%
52
10-120
09/26/19 16:14
Phenol-d6 (S)
%
32
10-120
09/26/19 16:14
Terphenyl-d14 (S)
%
90
11-131
09/26/19 16:14
LABORATORY CONTROL SAMPLE:
2690751
Spike
LCS
LCS
% Rec
Parameter
Units
Conc.
Result
% Rec
Limits Qualifiers
2-Methylnaphthalene
ug/L
50
42.4
85
25-150
Acenaphthene
ug/L
50
41.8
84
47-145
Acenaphthylene
ug/L
50
43.1
86
33-145
Anthracene
ug/L
50
50.0
100
1-166
Benzo(a)anthracene
ug/L
50
52.0
104
33-143
Benzo(a)pyrene
ug/L
50
51.2
102
17-163
Benzo(b)fluoranthene
ug/L
50
52.4
105
24-159
Benzo(g,h,i)perylene
ug/L
50
50.5
101
1-219
Benzo(k)fluoranthene
ug/L
50
52.3
105
11-162
Chrysene
ug/L
50
53.8
108
17-168
Dibenz(a,h)anthracene
ug/L
50
52.1
104
1-227
Fluoranthene
ug/L
50
52.5
105
26-137
Fluorene
ug/L
50
43.6
87
59-121
Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result.
REPORT OF LABORATORY ANALYSIS
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Date: 09/30/2019 04:54 PM without the written consent of Pace Analytical Services, LLC. Page 32 of 39

aceAnalytical
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Pace Analytical Services, LLC
9800 Kincey Ave. Suite 100
Huntersville, NC 28078
[phone]
QUALITY CONTROL DATA
Project: MacSteel-Kloeckner Metals
Pace Project No.: 92446381
LABORATORY CONTROL SAMPLE:
2690751
Spike
LCS
LCS
% Rec
Parameter
Units
Conc.
Result
% Rec
Limits
Qualifiers
Indeno(1,2,3-cd)pyrene
ug/L
50
51.4
103
1-171
Naphthalene
ug/L
50
42.3
85
21-133
Phenanthrene
ug/L
50
49.1
98
54-120
Pyrene
ug/L
50
52.0
104
52-115
2,4,6-Tribromophenol (S)
%
96
10-137
2-Fluorobiphenyl (S)
%
84
15-120
2-Fluorophenol (S)
%
72
10-120
Nitrobenzene-d5 (S)
%
86
10-120
Phenol-d6 (S)
%
59
10-120
Terphenyl-d14 (S)
%
107
11-131
MATRIX SPIKE & MATRIX SPIKE DUPLICATE:
2690752
2690753
MS
MSD
92446381001
Spike
Spike
MS
MSD
MS MSD
% Rec
Max
Parameter
Units
Result
Conc.
Conc.
Result
Result
% Rec % Rec
Limits
RPD
RPD Qual
2-Methyl naphthalene
ug/L
ND
50
50
38.5
39.1
77
78
25-150
2
30
Acenaphthene
ug/L
ND
50
50
40.3
40.7
81
81
47-145
1
30
Acenaphthylene
ug/L
ND
50
50
41.7
42.8
83
86
33-145
3
30
Anthracene
ug/L
ND
50
50
51.5
53.5
103
107
1-166
4
30
Benzo(a)anth race ne
ug/L
ND
50
50
54.4
57.7
109
115
33-143
6
30
Benzo(a)pyrene
ug/L
ND
50
50
53.4
56.6
107
113
17-163
6
30
Benzo(b)fluoranthene
ug/L
ND
50
50
53.1
56.6
106
113
24-159
6
30
Benzo(g,h,i)perylene
ug/L
ND
50
50
53.0
53.1
106
106
1-219
0
30
Benzo(k)fluoranthene
ug/L
ND
50
50
54.7
54.6
109
109
11-162
0
30
Chrysene
ug/L
ND
50
50
55.7
58.3
111
117
17-168
4
30
Dibenz(a,h)anthracene
ug/L
ND
50
50
54.8
56.6
110
113
1-227
3
30
Fluoranthene
ug/L
ND
50
50
52.7
55.7
105
111
26-137
5
30
Fluorene
ug/L
ND
50
50
43.3
43.4
87
87
59-121
0
30
Indeno(1,2,3-cd)pyrene
ug/L
ND
50
50
54.1
56.8
108
114
1-171
5
30
Naphthalene
ug/L
ND
50
50
38.9
40.7
78
81
21-133
5
30
Phenanthrene
ug/L
ND
50
50
51.0
52.5
102
105
54-120
3
30
Pyrene
ug/L
ND
50
50
55.4
58.8
111
118
52-115
6
30 M1
2,4,6-Tribromophenol (S)
%
97
92
10-137
2-Fluorobiphenyl (S)
%
77
79
15-120
2-Fluorophenol (S)
%
70
72
10-120
Nitrobenzene-d5 (S)
%
82
87
10-120
Phenol-d6 (S)
%
63
67
10-120
Terphenyl-d14 (S)
%
65
109
11-131
Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result.
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
Date: 09/30/2019 04:54 PM without the written consent of Pace Analytical Services, LLC.
Page 33 of 39

aceAnalytical
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Pace Analytical Services, LLC
9800 Kincey Ave. Suite 100
Huntersville, NC 28078
[phone]
QUALITY CONTROL DATA
Project: MacSteel-Kloeckner Metals
Pace Project No.: 92446381
QC Batch: 500145 Analysis Method: MADEP EPH
QC Batch Method: MADEP EPH Analysis Description: MADEP EPH NC Water
Associated Lab Samples: 92446381001, 92446381002, 92446381003, 92446381004, 92446381005, 92446381006
METHOD BLANK: 2690999
Matrix:
Water
Associated Lab Samples:
92446381001, 92446381002, 92446381003, 92446381004, 92446381005, 92446381006
Blank
Reporting
Parameter
Units
Result
Limit
MDL Analyzed Qualifiers
Aliphatic (C09-C18)
ug/L
ND
100
100 09/28/19 11:13 N2
Aliphatic (C19-C36)
ug/L
ND
100
100 09/28/19 11:13 N2
Aromatic (C11-C22)
ug/L
ND
100
100 09/28/19 11:13 N2
2-Bromonaphthalene (S)
%
97
40-140
09/28/19 11:13
2-Fluorobiphenyl (S)
%
96
40-140
09/28/19 11:13
Nonatriacontane (S)
%
72
40-140
09/28/19 11:13
o-Terphenyl (S)
%
85
40-140
09/28/19 11:13
LABORATORY CONTROL SAMPLE & LCSD:
Parameter
2691000
Units
Spike
Conc.
2691001
LCS LCSD
Result Result
LCS LCSD
% Rec % Rec
% Rec Max
Limits RPD RPD Qualifiers
Aliphatic (C09-C18)
ug/L
300
168
197
56
66
40-140 16 50 N2
Aliphatic (C19-C36)
ug/L
400
249
298
62
75
40-140 18 50 N2
Aromatic (C11-C22)
ug/L
850
799
728
94
86
40-140 9 50 N2
2-Bromonaphthalene (S)
%
108
87
40-140
2-Fluorobiphenyl (S)
%
110
95
40-140
Nonatriacontane (S)
%
66
77
40-140
o-Terphenyl(S)
%
102
90
40-140
Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result.
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
Date: 09/30/2019 04:54 PM without the written consent of Pace Analytical Services, LLC.
Page 34 of 39

Pace Analytical Services, LLC
ceAnalX cal ® 9800 Kiney Ave. Suite 100
Huntersville, NC 28078078
www.pacelabs.com [phone]
QUALIFIERS
Project: MacSteel-Kloeckner Metals
Pace Project No.: 92446381
DEFINITIONS
DF - Dilution Factor, if reported, represents the factor applied to the reported data due to dilution of the sample aliquot.
ND - Not Detected at or above adjusted reporting limit.
TNTC - Too Numerous To Count
J - Estimated concentration above the adjusted method detection limit and below the adjusted reporting limit.
MDL -Adjusted Method Detection Limit.
PQL - Practical Quantitation Limit.
RL - Reporting Limit - The lowest concentration value that meets project requirements for quantitative data with known precision and
bias for a specific analyte in a specific matrix.
S - Surrogate
1,2-Diphenylhydrazine decomposes to and cannot be separated from Azobenzene using Method 8270. The result for each analyte is
a combined concentration.
Consistent with EPA guidelines, unrounded data are displayed and have been used to calculate % recovery and RPD values.
LCS(D) - Laboratory Control Sample (Duplicate)
MS(D) - Matrix Spike (Duplicate)
DUP - Sample Duplicate
RPD - Relative Percent Difference
NC - Not Calculable.
SG - Silica Gel - Clean -Up
U - Indicates the compound was analyzed for, but not detected.
Acid preservation may not be appropriate for 2 Chloroethylvinyl ether.
A separate vial preserved to a pH of 4-5 is recommended in SW846 Chapter 4 for the analysis of Acrolein and Acrylonitrile by EPA
Method 8260.
N-Nitrosodiphenylamine decomposes and cannot be separated from Diphenylamine using Method 8270. The result reported for
each analyte is a combined concentration.
Pace Analytical is TNI accredited. Contact your Pace PM for the current list of accredited analytes.
TNI -The NELAC Institute.
LABORATORIES
PASI-A Pace Analytical Services - Asheville
PASI-C Pace Analytical Services - Charlotte
ANALYTE QUALIFIERS
M1 Matrix spike recovery exceeded QC limits. Batch accepted based on laboratory control sample (LCS) recovery.
N2 The lab does not hold NELAC/TNI accreditation for this parameter but other accreditations/certifications may apply. A
complete list of accreditations/certifications is available upon request.
P2 Re -extraction or re -analysis could not be performed due to insufficient sample amount.
P4 Sample field preservation does not meet EPA or method recommendations for this analysis.
SO Surrogate recovery outside laboratory control limits.
REPORT OF LABORATORY ANALYSIS
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Pace Analytical Services, LLC
9800 Kincey Ave. Suite 100
Huntersville, NC 28078
[phone]
QUALITY CONTROL DATA CROSS REFERENCE TABLE
Project:
MacSteel-Kloeckner Metals
Pace Project No.:
92446381
Analytical
Lab ID
Sample ID
QC Batch Method
QC Batch
Analytical Method
Batch
92446381001
MW-2
MADEP EPH
500145
MADEP EPH
500715
92446381002
MW-3
MADEP EPH
500145
MADEP EPH
500715
92446381003
MW-4
MADEP EPH
500145
MADEP EPH
500715
92446381004
DW-1
MADEP EPH
500145
MADEP EPH
500715
92446381005
RW-1
MADEP EPH
500145
MADEP EPH
500715
92446381006
DUP-1
MADEP EPH
500145
MADEP EPH
500715
92446381001
MW-2
MADEP VPH
498994
92446381002
MW-3
MADEP VPH
498994
92446381003
MW-4
MADEP VPH
498994
92446381004
DW-1
MADEP VPH
498994
92446381005
RW-1
MADEP VPH
498994
92446381006
DUP-1
MADEP VPH
499164
92446381001
MW-2
EPA 3010A
499394
EPA 6010D
499421
92446381002
MW-3
EPA 3010A
499394
EPA 6010D
499421
92446381003
MW-4
EPA 3010A
499394
EPA 6010D
499421
92446381004
DW-1
EPA 3010A
499394
EPA 6010D
499421
92446381005
RW-1
EPA 3010A
499394
EPA 6010D
499421
92446381006
DUP-1
EPA 3010A
499394
EPA6010D
499421
92446381001
MW-2
EPA 3010A
500062
EPA 6010D
500096
92446381002
MW-3
EPA 3010A
500062
EPA 6010D
500096
92446381003
MW-4
EPA 3010A
500062
EPA 6010D
500096
92446381004
DW-1
EPA 3010A
500062
EPA 6010D
500096
92446381005
RW-1
EPA 3010A
500062
EPA 6010D
500096
92446381006
DUP-1
EPA 3010A
500062
EPA 6010D
500096
92446381001
MW-2
EPA 625.1
500081
EPA 625.1
500180
92446381002
MW-3
EPA 625.1
500081
EPA 625.1
500180
92446381003
MW-4
EPA 625.1
500081
EPA 625.1
500180
92446381004
DW-1
EPA 625.1
500081
EPA 625.1
500180
92446381005
RW-1
EPA 625.1
500081
EPA 625.1
500180
92446381006
DUP-1
EPA 625.1
500081
EPA 625.1
500180
92446381001
MW-2
SM 6200B
499501
92446381002
MW-3
SM 6200B
499501
92446381003
MW-4
SM 6200B
499501
92446381004
DW-1
SM 6200B
499501
92446381005
RW-1
SM 6200B
499713
92446381006
DUP-1
SM 6200E
499501
Date: 09/30/2019 04:54 PM
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, LLC.
Page 36 of 39

Document Name: Document Revised: February 7, 2018
Sample Condition Upon Receipt(SCUR) Page 1 of 2
aceAnalytica Document No.: Issuing Authority:
F-CAR-CS-033-Rev.06 Pace Carolinas Quality Office
Laboratory receiving samples:
Asheville ❑ Eden❑
Client Name:
Greenwood ❑
U Lommerciai urd'.0 •
Custody Seal Present? ❑Yes ❑No Seals Intact? ❑Yes
Huntersville 0 Raleigh❑ Mechanicsville❑
�WO#:92446381
Project #i: .. _.,_ , . r r..■tN ■n
Client 111 Jim I loll I I in Moll ■r■
92446381
[:]No
i�
ram, Date/Initials Person Examining Contents: - c( G4�
Packing Material: ❑Bubble Wrap El ubble Bags ❑None ❑ Other Biological Tissue � Frozen?
Thermome�te '. ❑Yes ❑No viJ/A
uIR Gun ID: 92T049 Type of Ice: �M1let ❑61ue ❑None
Cooler Temp VQ t�Correction Factor: Add/Subtract (°C) 0.0
}} Temp should be above freezing to 6°C
Cooler Temp Corrected (°C): ❑samples out of temp criteria. Samples on ice, cooling process
hasbegun
USDA Regulated Soil (El N/A, water sample)
Did samples originate in a quarantine zone within the United States: CA, NY, or SC (check maps)? Did samples originate from a foreign source (internationally,
nYes nNo _ including Hawaii and Puerto Rico)? ❑Yes ❑No
Chain of Custody Present?
El4es
[-]No
❑N/A
1.
Samples Arrived within Hold Time?
[fifes
[]No
[]N/A
2.
Short Hold Time Analysis (<72 hr.)?
❑Yes
❑trio
❑N/A
3.
Rush Turn Around Time Requested?
❑Yes
M1.
❑N/A
4.
Sufficient volume?
5(yes
❑No
❑N/A -
S.
Correct Containers Used?
t r�s
❑No
[]N/A
6,
-Pace Containers Used?
EKes
C]No
[-]N/A
Containers Intact?
E�yes
❑No
❑N/A
7•
Dissolved analysis: Samples Field Filtered?
❑Yes
ONO
NJ N/A
8.
Sample Labels Match COC?
Q} es
❑No
❑N/A
9.
-Includes Date/Time/ID/Analysis Matrix:
Headspace in VOA Vials (>5-6mm)?
❑Yes
D4
❑N/A
10.
Trip Blank Present?
❑Yes
o
❑N/A
11•
Trip Blank Custody Seals Present?
[[Yes
❑No
❑N/A
COMMENTS/SAMPLE DISCREPANCY
Field Data Required? []Yes ❑No
CLIENT NOTIFICATION/RESOLUTION
Person contacted:
Date/Time:
Lot ID of split containers:
Project Manager SCURF Review: /W47 Date: %q
Project Manager SRF Review: In Date:
Page 37 of 39

2ceAnalytical'
Document Name:
Sample Condition Upon Receipt(SCUR)
Document Revised: February 7, 2018
Page 1 of 2
Document No.:
F-CAR-CS-033-Rev.06
Issuing Authority:
Pace Carolinas Quality Office
*Check mark top half of box if pH and/or dechlorination is
verified and within the acceptance range for preservation
samples.
Exceptions: VOA, Coliform, TOC, Oil and Grease, DRO/8015 (water) DOC, LLHg
**Bottom half of box is to list number of bottle
Project # WO# : 92446381
PM: NMO Due Date: 09/27/19
CLIENT: 92—AECOM CHA
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Sample ID
Type of Preservative
pH upon receipt
Date preservation adjusted
Time preservation
adjusted
Amount of Preservative
added
tot q
Note: Whenever there is a discrepancy affecting North Carolina compliance samples, a copy of this farm will be sent to the North Carolina DEHmR Certification Office (i.e.
out of hold, incorrect preservative, out of temp, incorrect containers.
Page 38 of 39

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7 a
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ITEM #
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'
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HNO3
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625 (PAHs only)
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TEMP in C
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il
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(YIN)
Page 39 of 39