WI0400198_SEMI-ANNUAL DATA REPORT_20130503

2d 13
April 30, 2013
Mr. Thomas Moore
North Carolina Department of Environment and Natural Resources (NCDENR)
Division of Waste Management — UST Section
585 Waughtown Street
Winston-Salem, North Carolina 27107
UIC Program Staff
DWQ — Aquifer Protection Section
1636 Mail Service Center
Raleigh, NC 27699-1636
DWQ — Aquifer Protection Section
Winston-Salem Regional Office
585 Waughton Street
Winston-Salem, NC 27107
RE: Semi -Annual Data Report
Former Knollwood Gulf Station (BP 24163)
381. Knollwood Street
Winston-Salem, Forsyth County, North Carolina
Injection Permit WI4400198
NCDENR Incident No. 6400
URS Project number: 38436760
Dear Mr. Moore:
Please find enclosed the Semi -Annual Data Report for the above referenced site. The report
documents performance monitoring completed during December 2012 and February 2013.
This report is not the project summary report mandated in Part V11.3 of Injection Permit
WI0400198; performance monitoring will continue at the site, as described in the enclosed report,
and a project summary report will be completed within 9 months of the final monitoring event.
Should you have any questions regarding this submittal, please do not hesitate to contact me at
[phone] or [e-mail].
Sincerely,
URS Corppration� North Carolina
Caleb Krouse, PE
Project Manager
Enclosure
RECEIVEDIDENRIDWO
MAY 0 3 2013
Apiter Protection Section
cc: Charles Sherren, Thruway Shopping Center, LLC (CD), ENFOS, BP [electronic], Project
File (electronic)
URS Corporation — North Carolina
1600 Perimeter Park Drive, Suite 400
Morrisville, NC 27560
Tel: [phone]
Fax: [phone]

SEMI-ANNUAL DATA REPORT
FORMER KNOLLWOOD GULF STATION (BP 24163)
381 KNOLLWOOD STREET
WINSTON-SALEM, FORSYTH COUNTY, NORTH CAROLINA
INCIDENT NO.: 6400
RISK RANK: INTERMEDIATE
LAND USE CLASSIFICATION: INDUSTRIAL/COMMERCIAL
URS PROJECT NO.: 38436760
Prepared for:
Atlantic Richfield Company (ARCO)
A BP Products North America Inc. bp
affiliated company
850 East 491" Street
MBC-3 Room 103E
Cuyahoga Heights. Ohio 44125 0
April 30, 2013
Prepared by:
URS Corporation -- North Carolina
1600 Perimeter Park Drive, Suite 400
Morrisville, North Carolina 27560 U.&O
Tel. [phone]
Fax [phone]

CERTIFICATION PAGE
FORMER KNOLLWOO❑ GULF STATION (BP 24163)
381 KNOLLWOOD STREET
WINSTON-SALEM, FORSYTH COUNTY, NC
Report Date:
April 30, 2013
Groundwater Incident Number:
6400
Land Use Category:
Industrial/Commercial
Risk Classification:
Intermediate (Gross Contamination Level Exceedences)
Responsible Party:
Atlantic Richfield Company
% BP Products North America, Inc
850 East 491" Street
MBC-3 Room 103E
Cuyahoga Heights, Ohio 44125
Attn: Greg Frisch
Current Property Owner:
Thruway Shopping Center, LLC.
7501 Wisconsin Avenue, Suite 1500
Bethesda, Maryland 20814-6522
[phone]
Attn: Charles Sherren or Zane Zynda
Report Prepared By:
URS Corporation - North Carolina
1600 Perimeter Park Drive, Suite 400
Morrisville, North Carolina 27560
(919) 461-1 100
Release Information:
Release of an unknown quantity of gasoline from an
underground storage tank product line 1 ancillary piping
prior to September 1983.
Release Location:
Latitude: 36°05'25.94"N (Topographical Map)
Longitude: 80° 17' 11.79"W
1, Caleb Krouse, a licensed engineer for URS Corporation — North Carolina, do attest that the
information co tained in this report is correct and a(:6yrutetlo/�e best of my knowledge.
-;�,�H CAR0��ii
4
_= �•; e •• A PCB ) L 30 20 13
Caleb Krouse, P.E, _ 7 2 3 = Date
URS Corporation — North Carolina �n • FH INE�
G �S+
URS Corporation — North Carolina is licensed tri9ai r' ngineering in North
Carolina. The certification numbers of the corporate 0,A, Ob� and C-2243. respectively.
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TABLE OF CONTENTS
1.0 INTRODUCTION..................................................................................... ..................... 1- i
1.1 Site Description.................................................................................................... 1-1
1.2 Project Background.............................................................................................. 1-1
2.0 INJECTION PERFORMANCE MONITORING............................................................2-1
2.1 Groundwater Sampling Procedures.....................................................................2-1
2.2 Purge Water Management.................................................................................... 2-1
3.0 RESULTS AND DISCUSSION ...................... ................................................................ 3-1
3.1 Groundwater Sampling Results........................................................................... 3-1
3.2 Performance Monitoring Discussion................................................................... 3-1
4.0 CONCLUSION AND RECOMMENDATIONS............................................................4-1
�r 5.0 STATEMENT OF LIMITATIONS.................................................................................5-1
6.0 REFERENCES................................................................................................................ 6-1
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TABLE OF CONTENTS
TABLES
Table 1 Monitoring Well Construction Data
Table 2 Summary of Groundwater Analytical Results
Table 3 Groundwater Field Parameter Results
FIGURES
Figure i Location Map
Figure 2 Site Map
APPENDICES
Appendix A Historical Groundwater Elevation Data
Appendix B Waste Manifests
Appendix C Historical Groundwater Analytical Summary
Appendix D Laboratory Analytical Reports
Appendix E ASP Injection Performance Monitoring Parameter Time -Trend Graphs
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SECTIONONE INTRODUCTION
URS Corporation - North Carolina (URS), on behalf of Atlantic Richfield Company (ARCO), a
BP Products North America Inc. affiliated company, is pleased to submit this Semi -Annual Data
Report for Former BP Station No. 24163 located at 381 Knollwood Street, Winston-Salem,
Forsyth County, North Carolina (site). This report documents performance monitoring associated
with an activated sodium persulfate (ASP) injection event completed at the site in June 2012.
The report presents procedures and results for groundwater sampling events performed in
December 2012 and February 2013 as well as updated conclusions and recommendations related
to the ASP injection at the site.
1.1 SITE DESCRIPTION
The site is located on the eastern side of Knollwood Street, southeast of its intersection with
Interstate 40 Business in Winston-Salem, North Carolina. A USGS topographic map showing the
site location and surrounding area is provided as Figure 1. The site property is approximately 0.5
acres, is covered by asphalt and concrete, and was formerly developed as a retail fueling
station/convenience store with gasoline, diesel, waste oil, and kerosene underground storage
tanks (USTs). All UST systems and buildings have been removed from the site and the property
is currently used as a parking lot for an adjacent shopping center. Site geology, hydrogeology,
UST removal history, petroleum release history, environmental investigation and remediation
activity history, surrounding property uses, and site ownership history were presented in detail in
the site Corrective Action Plan (CAP) (URS, 2011).
A site map showing current and historical site features, including groundwater monitoring well
locations, is provided as Figure 2. Currently, ten Type II monitoring wells (MW-3, MW-5R.
MW-6. MW-8R, and MW-14 through MW-19) and one Type III monitoring well (MW-6i) are
located at the site. Monitoring well construction details are presented in Table 1.
1.2 PROJECT BACKGROUND
The ASP injection was performed in accordance with the CAP which was approved by the North
Carolina Department of Environment and Natural Resources (NCDENR) Division of Waste
Management (DWM) UST Section (NCDENR, 2011). An Underground Injection Control (UIC)
permit application, summarizing the proposed injection activities, was submitted to the
NCDENR Division of Water Quality (DWQ) on July 5, 2011, Injection Permit No. WI0400198
was issued by the DWQ on August 9. 2011.
Pre -injection investigation and pilot test activities performed in October 2011 were previously
documented in a summary report, dated April 23, 2012. submitted to both the DWQ and the
DWM UST Section (URS, 2012a). A final ASP injection design, refined based on the results of
the pre -design investigation and pilot test results, was also presented in the April 2012 report.
An ASP injection event was performed at the site between June 4, 2012, and June 9, 2012.
Injection activities and groundwater sampling performance monitoring were performed in
accordance with the approved CAP and Injection Permit No. W10400198. Baseline data, June
2012 ASP injection activities, and past -injection sampling data through September 2012 were
documented in the Activated Sodium Persuffiale Injection Completion Report (URS, 2012b).
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SECTIONTWO INJECTION PERFORMANCE MONITORING
2.1 GROUNDWATER SAMPLING PROCEDURES
The December 5, 2012, and February 26, 2013, groundwater monitoring events were performed
to comply with the monitoring plan documented in the approved CAP and Injection Permit No.
WI0400198. The events included sampling of monitoring wells MW-3, MW-5R, MW-811,
MW-18, and MW-19. Prior to sampling, groundwater levels were gauged in each of the five
monitoring wells using a water level meter decontaminated with a Liquinox and distilled water
rinse prior to each measurement. Water level measurements are presented along with historical
gauging data in Appendix A.
Following gauging, each well was purged of three well volumes and sampled with a new
disposable polyethylene bailer and nylon line. Groundwater from each well was transferred to
pre -labeled, laboratory -prepared containers and promptly placed on ice in a cooler with a
temperature and trip blank. The samples were shipped under chain -of -custody via overnight
courier to Accutest Laboratories Southeast (Accutest) and analyzed for benzene, toluene,
ethylbenzene, and xylenes (BTEX) and methyl tert-butyl ether (MTBE) by EPA Method 620013,
sulfate by EPA Method 300, and carbon dioxide (CO,) by EPA Method 4500-CO2. During the
December 5, 2012, sampling event additional groundwater from MW-8R was transferred to a
separate sample container and placed on ice for subsequent sodium persulfate analysis by URS
personnel. On the day following the sampling event, a URS chemist analyzed the sample for
sodium persulfate using FMC's Klozur* Field Test Kit K.
During sample collection at each monitoring well, groundwater pH, dissolved oxygen (DO),
temperature, oxidation-reduction potential (ORP), and specific conductance were measured in
the field using a calibrated Yellow Springs Instrument YSI-5564D water quality meter. DO was
measured in -situ prior to purging and sampling; pH, temperature, ORP, and specific conductance
were measured in -situ subsequent to purging and sample collection.
2.2 PURGE WATER MANAGEMENT
On December 5, 2012, and February 26, 2013, each of the five injection performance monitoring
wells was purged of three well volumes prior to sample collection. Purge water for all wells was
containerized in properly labeled 55-gallon drums temporarily staged on -site. Purge water was
diluted on -site with water pumped from MW-14 and MW-17 to produce a field tested pH below
9.5. One 55-gallon drum of purge water was generated during each of the two events. The drums
were picked up on December 6, 2012, and February 26, 2011 by Shamrock Environmental and
transported off -site for disposal in accordance with applicable Federal, State, and local
regulations. Waste manifests for the disposal of the drums are included in Appendix B.
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SECTIONTHREE RESULTS AND DISCUSSION
3.1 GROUNDWATER SAMPLING RESULTS
Groundwater laboratory analytical results from the December 2012 and February 2013 sampling
events are presented along with previous injection performance monitoring data in Table 2.
Groundwater field parameter and sodium persulfate test kit data are presented in Table I A
summary of historical groundwater analytical data for the site is presented in Appendix C. The
laboratory analytical reports for the December 2012 and February 2013 monitoring events are
included in Appendix D. Time -trend graphs of various parameters associated with injection
performance monitoring are included in Appendix E.
3.2 PERFORMANCE MONITORING DISCUSSION
The following list provides a brief summary of notable performance monitoring trends based on
laboratory analytical results and Feld measurements collected through February 2013.
■ Targeted contaminant concentrations, including benzene, decreased significantly one -week
after injection in MW-5R, MW-8R, and MW-18, with varying degrees of dissolved
contaminant rebound observed between one month (July 2012) and nine months (February
2013) after injection. After initial decreases. MW-5R concentrations increased gradually to
approximately 15 percent of baseline levels nine months following injection. MW-8R
concentrations rebounded to approximately 50 percent of baseline conditions after one
month, remained stable through three months after injection, increased to approximately 90
percent of baseline conditions after six months and remained at this level, above the GCL
standard, through nine months after injection. MW-18 concentrations fully rebounded to
baseline conditions after two months and have remained relatively stable through nine
months after injection. MW-19 contaminant concentrations increased following injection,
possibly due to injection -related physical and chemical processes, returned to baseline
conditions after two months, and have remained relatively stable through nine months after
injection.
• Sodium persulfate test kit analytical results were inconsistent within the injection area.
Results for samples collected from MW-8R exhibited a predictable pattern following
injection; a sharp increase to 32 grams per liter (g/L) one week after injection followed by a
steady decrease in subsequent months as the sodium persulfate reacted and degraded.
However, sodium persulfate has not been detected in any samples collected from MW-5R
and MW-18 and was detected only once, one week after injection, in samples collected
from MW-19.
■ With the exception of MW-5R, injection performance monitoring indicators CO2, sulfate.
specific conductivity, and pH, which each either signal injectant distribution or are
oxidation byproducts, demonstrate a pattern of a sharp increase one week after injection
followed by consistent decreases over subsequent months. At MW-5R, these indicators
generally exhibited a more gradual increase following injection with each parameter
stabilizing and then decreasing two or three months following injection. This trend may
indicate a longer period of active chemical oxidation and may correlate to greater
contaminant reductions at MW-5R.
• MW-3, sampled as a downgradient "sentinel" monitoring well, has not exhibited a notable
response as a result of the injection in any of the monitoring parameters tested.
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SECTIONFOUR CONCLUSION AND RECOMMENDATIONS
Based on the observations and data collected at the site through February 2013, URS presents the
following conclusions.
• Benzene concentrations were reduced in monitoring wells M W-5R and M W-8R as a result
of ASP injection. More significant reductions observed at MW-5R and MW-8R as
compared to MW-18 and MW-19 may be related to the more aggressive ASP solution
dosage within the source core area (URS, 2012b). There were no GCL exceedances for any
contaminant analyzed in any well sampled in August 2012 and September 2012. Benzene
concentrations in MW-8R rebounded to a level greater than the GCL between September
and December 2012 and remained above the GCL as of February 2013.
■ Based on sample results for sodium persulfate and for indicator parameters CO2 and
sulfate, the majority of chemical oxidation resulting from injection concluded by
September 2012. Non -detect sodium persulfate sample results have been demonstrated for
each performance monitoring well following the injection, including most recently the
sample collected from MW-8R in December 2012. These results suggest that most if not all
injected sodium persulfate has fully degraded.
■ Due to increased dissolved sulfate concentrations created as a byproduct of the ASP
oxidation reaction, ongoing biological degradation of petroleum constituents by sulfate
reducing bacteria may result in additional contaminant reduction over time. Gradually
decreasing ORP levels observed within the injection area suggest enhanced anaerobic
biodegradation conditions, potentially resulting from increased sulfate concentrations.
■ Aquifer characteristics affected by the injection, including Cat concentrations, sulfate
concentrations, specific conductivity, and pH, have continued to exhibit a decreasing trend
towards baseline conditions following increases observed one week after injection.
+ Based on monitoring results for downgradient monitoring well MW-3, the effects of the
injection appear to have been contained to within the targeted treatment area.
Based on these conclusions, URS recommends the following course of action:
■ Continue quarterly sampling of monitoring wells MW-3. MW-5R, MW-8R, MW-18, and
MW-19 with sampling events planned for May 2013 and August 2013.
• Perform a second injection event in accordance with the approved CAP and Injection
Permit No. WI0400198 in early June 2013.
In accordance with the approved CAP, a Semi -Annual Data Report will be submitted to
NCDENR to document the second injection event and ongoing performance monitoring results.
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SECTIQNFIVE STATEMENT OF LIMITATIONS
This report has been prepared based on assumptions made by URS related to data and site
characterization from previous and proposed site investigations. These assumptions, although
thought to be reasonable and appropriate, may not prove to be true in the future. Data and site
characterization utilized to develop this summary report and injection plan are restricted by the
following limitations.
Background information and other data have been furnished to URS by ARCO. NCDENR and/or
third parties, which URS has used in preparing this report. URS has relied on this information as
furnished, and is neither responsible for nor has confirmed the accuracy of this information. In
addition, it would be extremely expensive, and perhaps not passible, to perform an investigation
which would completely characterize subsurface geological conditions to ensure the detection of
all materials at the site which now are, or in the future might be, considered "contaminants" by
State or federal regulatory agencies. It is possible that any environmental investigation may fail
to reveal the presence of critical subsurface characteristics or contaminants that may be present.
URS' failure to discover hazardous materials or contaminants through reasonable and mutually
agreed -upon scopes of work does not guarantee that hazardous materials or contaminants do not
exist at the site. Finally, opinions presented herein apply to the existing and reasonably
foreseeable site conditions at the time of our assessment. Changes in the condition of this
property may occur with time due to natural processes or works of man at the site or on adjacent
properties. Changes in applicable standards may also occur as a result of legislation or the
broadening of knowledge. Accordingly, the findings of this report may be invalidated, wholly or
in part, by changes beyond our control.
No expressed or implied representation or warranty is included or intended in our reports except
that our services were performed, within the limits prescribed by our clients, with the customary
thoroughness and competence of our profession.
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SECTIRNSIX REFERENCES
NCDENR 2008, Guidelines for Sampling. UST Section, North Carolina Department of
Environment and Natural Resources, Division of Waste Management, July 2008.
NCDENR. 2011. Re: Notice oj' Regulatory Requirements, 15A NCAC 2L . 0407(c), Risk -based
Assessment and Corrective Action for Petroleum Underground Storage Tanks,
Knollwood Gulf Station (BP 24163). 381 Knollwood Street, Forsyth County. North
Carolina Department of Environment and Natural Resources, Division of Waste
Management — UST Section, Winston-Salem Regional Office. October 27, 2011.
URS, 2011. Corrective Aetion Plan, Former Knollwood Gu f'Station (BP 24163), Incident No.
6400. 381 Knollwood Street, Winston-Salem. North Carolina. URS Corporation — North
Carolina. September 7, 2011.
URS, 2012a. RE: Injection Pilot Test and Additional Investigation Results. Letter Report
Submitted to Thomas Moore, North Carolina Department of Environment and Natural
Resources, Division of Waste Management — UST Section. URS Corporation -North
Carolina. April 23, 2012.
URS, 2012b. Activated Sodium Persulfate Injection Completion Report. URS Corporation —
North Carolina. December 5, 2012.
USEPA, 2008. USEPA Contract Laboratory Program National Functional Guidelines for
Superfund Organic Methods Data Review, U.S. Environmental Protection Agency Office
of Superfund Remediation and Technology Innovation. USEPA-540-R-08-01. June 2008.
USEPA, 2010. USEPA Contract Laboratory Program National Functional Guidelines ,for
Inorganic Superfund Data Review, U.S. Environmental Protection Agency Office of
Superfund Remediation and Technology Innovation. EPA 540-R-10-011. January 2010.
YSI, 2009. The Dissolved Oxygen Handbook W39 0909. September 2009. YS1 Incorporated.
P ZrPln,ecWNC1:A10. CK. W-5. &Mi 1J[1RM-W $I ml 5 11 D➢ k., mWoJ I DWI - IMlenm 9eh,mALw4 JI S—A-1 EUU ReV dLBP 141I•i tin.-A1mwI D.0 Rip fl d- 6-1

TABLES

Table I
Monitoring Well Construction Data
Former BP Service Station No. 24163
381 1lnollwood Street
Winston-Salem, Forsyth County, North Carolina
ION 01
staluti
Well
Type
TOC
Elevation 11)
Total
Depth...
Well
Diameter (inches)
Screen
interval l'I
Avg Screen
Elevatioptt1
MW-3
In Use
Type lI
99.03
20
?
NA NA
NA
M1R-
Abandoned
Type][
99.39
25.5
4
10.5 - 25.5
81.4
MW-5R
In Use
Type 11
NS
20
2
10 - 20
NA
MW-6
In Use
Type][
98.68
25.5
4
10-5 - 25-5
90.7
MW__hI
in Use
Tvpe 111
99.26
55
_
1;f1 - 55
46.8
MW-8
Abandoned
'type 11
97.84
23
NA - NA
NA
MW-8R
In Use
Type 11
NS
20
_
In 20
NA
MW-14
In Use
Type][
100.44
22
7 22
85 9
MW-15
In Use
Type 11
99.91
22
7 22
Kt •t
MW-16
In Use
Type It
97.42
25
2
1 ! 1 - 25
79.9
MW-17
In Use
Type ll
100-00
22
4
7 - 22
85.5
MW-18
In Use
Type II
NS
20
2
10 - 20
NA
MW-19
In Use
Type 11
NS
20
2
10 - 20
NA
Notes:
I . Reported in feet below grade
2. Measured in feet relative to Site datum
4- Conestoga Rover and Associates, a former supplier for this Site, previously reported that no reference was found to the following wells-
MW-1, MW-9. MW-10, MW-1 I, MW-12 or MW-13. These wells are presumed to be abandoned.
3. URS Corporation is not responsible for data generated by others. Data included on this table not generated by
or on behalf of L1RS Corporation - North Carolina CURS] has been taken from documents prepared and submitted to the NC DENR by Others and
is included only for ease of reference-, URS does not assume or accept any responsibility or liability for the quality, accuracy, or completeness of
the data included on this table that was not generated by or on behalf of URS.
4. Monitoring wells MW-5 and MW-8 were abandoned on 5/19/2010 and replaced with monitoring wells MW-SR and MW-811 the same day.
5. Monitoring wells MW-l8 and MW-19 were installated on October 25, 2011.
NA = Not Applicable 1 Available
NS = Not Surveyed
TOC = Top of Casing
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Table 2
Summary of Groundwater Analytical Results
Former $P Service Station No. 24163
381 Knollwood Street
Winston-Salem, Forsyth County, North Carolina
Well
F%ent
SaTriple Date
Benzene
Ethyl
benzene
MTBE
Toluene
Nylenes
[Total]
Sulfate
( arhnn
dio-Ode
NC GCL:
5,000
84,500
20,000
260,000
85,500
\ E
NE
Units:
I
1
I
/I
1
ni =: I
m i
M W-03
6-months 2rior
10/310-01 1
5.5
0.76
19.1
< 0.17 U
0.38 J
8.4
405
2-weeks prior
5/2212012
< 0.43 U
¢ 0.2
4.6
< 0.2
t 0.52
15.3
378
1-week after
6114120i2
12.I
6.7
15.4
0.72
4.7
6.6 J
344
I -month after
7/9/2012
2.2
1.6
14.7
2.6
3
9.9
393
2-months after
8/14/2012
2
2.1
17.9
< 0.13
0.41
1 3.6
303
3-months after
9/19/2012
2.7
0.66
19.8
< 0.13
0,33 J
2.8
459
6-months after
12/5/2012
1 l .3
1.-)
19.3
0.43 J
1.1 J
0.78 J
377
8-months after
2/26/2013
0.23 J
< 0.1
5.4
< 0.1
< 0.22
300
338
MW-05R
6-months prior
10/31/2011
2,660
3,830
28,000
13,800
< 1
E 5
6-months prior
10/31/2011 "'
8,360
2.870
4,070
24,600
14,800
NR
NR
2-weeks prior
5/22/2012
7,980
3,470
3,920
32,200
19.200
< 5
179
1-week after
6/15/201212'
244
227
36.9
1,190
1.120
6,070
1,820
1-month after
7/9J2012
336 J
481 J
48.4 J
2,010 J
2,400 J
6,470
2.620
2-months after
8/14/2012
201
283
48.5
1-050
1,300
14,700
4,190
3-months after
9/19/2012
158
181
114
650
883
19,000
3,280
6-months after
12l512012
754
505
1.160
2,220
2,380
13,600
1,840
8-months after
2/26/2013
1,360
878
1.660
3,520
3,940
3,400
1,530
6-months prior
10/31/2011
8,000
3,180
3,170
32,100
17,200
r 1
r 5
2-weeks prior
5/22/2012
8,270
3,360
3,920
36,400 J
17,800
< 5
119
1-week after
611512012'`'
726
47 J
96.3 J
760
2423
4,760
22,200
[-month after
7/9/2012
4,540 J
1,870 J
1,5301
17,100 J
10,800 J
6,570
4,500
2-months after
8/14/2012
4.370
1,610
2,000
19,300
8,780
7,010
1,560
3-months after
9/19/2012
4.780
1,800
2,600
20,900
10,400
6,700
1,100
6-months after
12'512012
7,760
2.440
4.560
31,900
13,800
2,410
635
8-months after
2 26/2013
__7Q, K_.
2,480
4,530
307500
13,400
883
590
MW-18
6-months prior
10/31/2011
3.140
998
11140
11100
8,950
82
446
2-weeks prior
5/22/2012
2.280
2,790
789
18,200
12,000
< 5
307
[-week after
6/15/2012 ''-'
373
910
114
4,800
3,910
I0,600
3,410
I -month after
7/9/2012
1.730 J
2,1701
676 J
15,000 J
9,750 J
2,300
835
2-months after
V1412012
3.020
2,990
1,090
24,400
12,800
758
580
3-months after
9/19/2012
3,190
3,090
1,240
22.600
14,000
322
542
6-months after
12/5/2012
3 370
2,970
1,380
20,100
12,800
32.2
436
8-months after
2/26/2013
2,510
2,970
1,140
10,100
8,690
1 1
500
MW-19
6-months prior
10/31/2011
2.390
1380
5,160
8,790
7,040
3.7
425
2-weeks prior
5/22/2012
2,700
1,560
4,880
14,200
7,940
< 5
310
1-week after
6/15/2012 (2)
4,020
1,440
3,290
18,200
7,940
1,090
6,520
1-month after
T912012
5,130
2.910
5,330
30,400 J
16,300
232
991
2-months after
8/14/2012
2.420
1,650
4,090
[4,200
8,370
469
1,080
3-months after
9/19/2012
2,090
1,630
3,960
12.900
8,640
260
690
6-months after
12/5/2012
2,320
1,810
4,010
15,200
10,400
58.8
588
8-months after
2126l2013
2,210
1,1 10
3,890
10,600
6,990
590
503
E QRSiVYw vg D�hOP,6P 2419TX. a A ..W O.t. R.p." 20 Se Am Da Reporff.M I 1 of 2

Table 2
SummarN- of4roundwaterAnalytical Results
Former BP Service Station No. 24163
381 Knollwood Street
Winston-Salem, Forsyth County, North Carolina
Notes:
"' Field duplicate
'"' Alkalinity, sulfate, and carbon dioxide samples were collected 611412012 and volatile organic analysis samples were collected 611912
This table presents the results of all analytes. Sample results have been qualified by URS based on the results ofthe data review process, which is
modeled after the USEPA Comracr Lahoraran• Program 1CLPl i'ariona! Fionerromal Guidelines (VFG) for Saperfand Organic Methods Data
Review (EPA, Jrrme :1)081 and USEPA CLP NF'G far hrorganic Superfund pars Review (USEPA. Januun, 2010)
Gross Contamination Levels, effective April 16, 2012, oblamed from the NCDEN R, Division of Waste Management, LIST Section A bold border
indicates the concentration is greater than the NC Gross Contamination Level
c - Not. detected at the specified detection limit
gg11- Micrograms per Liter
mg/L. - Milligrams per € iter
! - Estimated value
U - Not present above the associated level, blank contamination exists
GCL - Grass Contamination Level
MTBE - Methyl tent -Butyl Ether
NE - Not established
N€i - Not regwred
E URS00" Dv er"%BRSP Ni63t4 Am ai D@U 2 of 2

Table 3
Groundwater Field Parameter Results
Former BP Service Station No. 24163
381 Knollwood Street
Winston-Salem, Forsyth County, North Carolina
MW-3 (downgradient control)
Event
Description
pate
Sodium
Persulfate
DTW
pH
ORP
Temp.
Specific
Cond.
fit(]
g/L
feet
S.U.
mV
"C
m5/e»>
mgiL
6-months prior
10/31/11
NM
I3.87
6.84
-72
22.04
1.171
3.2
2-weeks prior
05/22/12
0.07*
I3.55
7.13
-5.4
20.32
0.708
4.6
1-week after
06/14/12
N❑
13.53
6.84
21.7
20.53
0.854
0.5
1-month after
07/09/12
ND
13.98
7.08
-7
21.42
1 0.753
3.6
2-month after
08/14/12
ND
14.24
7.02
-51.9
22.43
0.55'
2.7
3-month after
09/19/12
0.07*
14.08
7.00
-125.9
22.06
0.854
0.9
6-month after
12/05/12
NM
14.42
6.89
-66.6
20.65
0.774
1.3
9-month after
02/26/12
NM
13.55
6.61
-72.5
16.30
0.573
1.3
MW-5R
Event
Description
Date
Sodium
Persulfate
DTW
pH
ORP
Temp.
Specific
Cond.
OG
g/L
feet
S.U.
mV
°C
mSlcm
rng/L
6-months prior
10/31/11
NM
13.97
4.89
185.6
22.00
0.123
1.7
2-weeks prior
05/22/12
ND
13.66
4.19
153.9
20.04
0.078
1.1
1-week after
06/14/12
N❑
13.73
13.08
8.9
23.57
37.82
0.5
1-month after
07/09/12
ND
14.18
13.10
39.9
22.42
35.02
7.2
2-month after
08/14/12
0.07*
14.45
13.38
144.1
23.36
34.g1
0.3
3-month after
09/19/12
ND
14.35
13.36
39.9
23.12
46.21
0.2
6-month after
12/05/12
NM
14.68
12.39
1 .-
22.79
27.87
0,6
9-month after
02/26/12
NM
1 13.89
11.66
1 -44.7
15.14
16.44
1.2
MW-SR
Event
Description
Date
Sodium
Persu lfa to
MAN
pH
ORP
Temp.
Specific
Cond.
DO
g/L
feet I
S.U.
mV
°C
mSlcm
mg/L
6-months prior
10/31/11
NM
13.34
4.80
198.1
21.88
0.250
1.9
2-weeks prior
05/22/12
N❑
13.69
4.59
250.4
19,80
0.158
0.8
1-week after
06/14/12
32.18
14.94
13.32
17.2
22.80
194.5
17.16**
1-month after
07/09/12
8.4
14.08
13.38
116.7
21.56
68.5
32.85**
2-month after
08/14/12
3.64
14.29
13.09
171
21.75
20.15
42.28**
3-month after
09/19/12
0,665
14.08
12.74
123.9
21.92
19.1
13.97**
6-month after
12/05/12
N❑
14.53
11.34
25.4
22.10
fi.993
2.1
9-month after
02/26/12
NM
13.80
10.02
-59.2
15.35
2.298
0.7
ilI`lI-mkriM4IM LXW,;.191 K&.U....ati.m.nRii tWin mMc.:3II)iM-4srreo- Uc4�nhl�A10.`.em.-A-4I]-%Repn% I.h"% f.Ma Ap,.edcn iGmyJn mI I of 2

Table 3
Groundwater Field Parameter Results
Former BP Service Station No. 24163
381 Knollwood Street
Winston-Salem, Forsyth County, North Carolina
MW-18
Event
Description
Date
Sodium
Pers u l fa to
DTW
pH
ORP
Temp.
Specific
Cond.
DO
&L
feet
S.U.
mV
"C
ms/cm
mg/L.
6-month prior
10/31/11
NM
13.95
6.86
12.9
-2.47
0.1 17
2.4
2-weeks prior
05/22/12
ND
14.10
6.20
30.7
21.43
0.001
3.0
1-week after
06/14/12
ND
13.61
1112
5
21.06
54.11
0.3
1-month after
07/09/12
N❑
14.05
11.92
40.4
21.29
10.05
1.2
2-month after
08/14/12
ND
14.1
10,88
-35
22.59
2.533
0.2
3-month after
09/19/12
ND
14.34
11.09
-35
22.59
1 3.301
1 0.2
6-month after
12/05/12
NM
14.6-1
6.91
-68.1
22.85
0. 559
0.7
9-month after
02/26/12
NM
14.67
6.11
-84.2
14.86
1 0.589
1 1.0
MW-19
Event
Description
Date
Sodium
Persulfate
DTW
p H
ORP
Temp.
Specific
Cond.
DO
g'L
feet
S.U.
mV
"C
mslcm
mg/L
6-month prior
10/31/11
NM
13.75
5.37
190
21.81
0.193
3.9
2-weeks prior
05/22/12
ND
l . ,7
4.62
131.7
19.89
0.103
0.9
l-week after
06/14/12
6.615
13.39
13.30
-15.8
21.57
117.8
22.38**
1-month after
07/09/12
N❑
13.89
12.75
46.9
21.91
13.4
25.79**
2-month after
08/ 14/ 12
0.07*
14.13
12.50
162
22.57
10.21
25.46**
3-month after
09/19/12
0.07*
14.02
11.71
157
22.47
3.424
12.9**
6-month after
12/05/12
NM
14.39
9.99
20.1
23.03
1.537
5.2
9-month after
02/26/12
NM
13.62
8.14
-41.9
16.85
1.511
0.8
Notes:
* Sodium persulfate results of 0.07 are treated as "non -detections". as they are within the margin -of -error for detection.
** Dissolved oxygen results above saturation (approximately 9.1 mg/L at 20°C) are considered to represent measurement
error and are not considered representative of actual dissolved oxygen concentration in groundwater. Error in
measurements for the sensor used, a steady-state polarographic sensor. can be caused membrane fouling and interference
gases, among other causes (YSI, 2009). The likelihood of measurement error from these sources may have been
heightened by the injection.
DTW - depth to water ND - Not Measured
ORP - oxidation reduction potential ND - Not Detected
DO - dissolved oxygen
g/L - grams per liter
s.u. - standard units
rnV - millivolts
C - degrees Celsius
mSlcm - milliSiemens per centimeter
mg/L - milligrams per liter
I• aa+r I.wcwln=. ac w•s "I rcewh... Skla 411 I1Wna IA-1 I T)rdk IW. Ikp, aOW. 1?�9 -Am W IJmr R. mk%I*b4m%J A4. Arp ww awl4 rw� -1 2 of 2

FIGURES

ll�
LIN P'S ; M, 76 t
wit
7 71
A-
S*W—Ni
P7
ag
kill,
Lk
4,
go
)l
t -.

a
ti
+MW-17
¢!
ati
J1
I
4
*v
E
C.
7
I
MW-3 -
Mw-18+
I
MW-5R� MW-1
MW-1%.77
*MW—BR
MW-6
mwte
MW—f
Fol FR
TAW I
Rld DIE
5 R — I
Iy ti
C ❑ 6 9 i �� ! - I'LR�Ii
MW-15 sop* _
FL�RbA E ❑
fit■ ti VEN-
I —
LEGEND
PROPERTY LINE
00
ABANDONED GROUNDWATER
MONITORING WELL
FORMER PRODUCT LINE
ca0
CATCH BASIN IV
o ""
MAN HOLE
AREA LIGHT
■'�"
UTILITY POLE
FIRE HYDRANT
TELEPHONE
LARGE MANHOLE COVER
GROUNDWATER MONITORING WELL
NOTES:-
1 . MONITORING WELL LOCATIONS ARE
APPROXIMATE.
2. THE SITE IS A VACANT PARKING LOT.
ALL SITE FEATURES EXCEPT PARKING
LOT CURBS AND ROADWAYS REPRESENT
FORMER SITE CHARACTERISTICS,
0 30
APPROX. SCALE, ft.

APPENDIX A
Historical Groundwater Elevation Data

Appendix A
Historical Groundwater Elevation Data
Former BP Service Station No. 24163
381 Knollwood Street
Winston-Salem, Forsyth County, North Carolina
TOC
Depth to
Depth to
LNAPL
[ orrected
Well
Date
Elevation
LNAPL
Ground"ater
Thickness
Groundwater
1
(feet MO
(fee-1-bloc
feet
Elevation i 2
06/24/93
till
13.89
0.00
85.14
"
09/23/94
ND
14.36
0,00
84.67
03/21/95
ND
13.58
0-00
85-45
*
08/05/96
ND
13.54
0.00
85-49
*
11/17/99
ND
14.09
0.00
84.94
"
06/19/01
ND
14.11
0.00
84.92
"
09/12/01
ND
14.41
0,00
84.62
12/27/01
ND
14.51
0,00
84.52
03/05/02
ND
14.21)
0.00
84.74
05/13/03
ND
14.3i
0.00
84.68
12/09/03
ND
13.63
0.00
85-40
MW 3
03/23/06
99.03
ND
13.64
0.00
85.39
05/08/07
ND
13.40
000
85.63
05/14/08
ND
13.42
0.00
85.61
05/29/09
ND
13.31
0,00
85-72
05/27/10
ND
13-07
0.00
85.96
10/31/11
ND
13.87
0A0
85-16
05/22112
ND
13.55
0.00
85.48
06/14/12
ND
13.53
0.00
85-50
07/09/12
ND
13.98
0.00
85.05
08/ 14/ 12
ND
14.24
0.00
84.79
09/19/12
ND
14.08
0.00
84-95
12/05/12
ND
14.42
0.00
84.61
02/26/13
ND
13.55
0.00
85-48
06/24/93
ND
13.51
0.00
85.88
08/23/94
ND
13.82
4.00
85.57
03/21/95
ND
13.71
0.00
85.68
08/05/96
ND
13-54
0.00
85-85
11/17/98
ND
14.08
0-00
85.31
06/19/01
NM
NM
NM
NM
09/12/01
ND
14.40
0.00
84.93
MW-5
12/27/01
99.39
14.51
15-07
0.56
84.73
03/05/02
14.4�,
14.88
0.43
84.82
05/12/03
NM
NM
NM
NM
12/09/03
13.18
13.60
0-42
86.10
03/23/06
ND
13-67
0.00
85.72
05/08/07
ND
13.45
0.00
85.94
051]4108
ND
13.51
0-00
85.88
05/28/09
ND
13-39
0.00
86.40
05/27/10
ND
13-70
0.00
NM
10/31 / 11
ND
13.97
0.00
NM
05/22/12
ND
13.66
0.00
NM
06/14/12
ND
13.73
0.00
NM
1.1u--;R
07109A2
•ti
ND
14.19
0.00
NM
08/14/12
ND
14,45
0-00
NM
09/19/12
ND
14.35
0.00
NM
12/05/12
ND
14.68
0.00
NM
02/26/13
ND
13.89
0.00
NM
LrMS WgWo Llcv-BF HP241OiIhu jteTv4Nk-AM6"9- 6pwIMHe TdbIw. AppM...--4 Uapl -UH-AOW FJ -IAM-6� AM 17 KI II U"4 Page 1 of

Appendix A
Historical Groundwater Elevation Data
Former HIP Service Station No. 24163
381 Knollwood Street
Winston-Salem, Forsyth County, North Carolina
TOC
Mpth tII
Depth to
LNAPL
Corrected
lN(Al
Date
Elevation
I-NAI'I.
GroundAater
Thickness
Graund%ater
1
(Teel Not)
feet ht(jr}
feet
Elevation 1 2
'
06/24/93
`.l;
1' ; I
0-00
86-37
08/23/94
ND
12.61
0.00
86.07
03/21/95
ND
13.15
0.00
85.53
09/05/96
ND
12.39
0.00
86.29
11/17/98
NI]
13.16
0.0U
85.52
06/19/01
NM
NM
NM
NM
09/12/01
ND
13.51
0.00
85.17
12/27/01
ND
13.61
0.00
85.07
MW-6
03/05/02
98.68
ND
11.02
0.00
87.66
05112/03
ND
11.10
0.00
87-58
12/09/03
ND
13.49
0-00
85.19
03/23/06
ND
11.79
&00
86-99
05/08/07
ND
12-50
0.00
86-18
05/14/08
ND
12.16
U.00
86.52
05/28/09
ND
10.64
0.00
88.04
05/27/10
ND
11.84
0.00
86.84
10/31/11
ND
12.95
0-00
85.73
06/24/93
ND
W
0.00
NM
08/23/94
ND
NM
0-00
NM
03/21/95
ND
14-75
0.00
84.51
08/05/96
ND
14.13
0.00
85.1 ;
11/17/98
ND
14.09
0.00
85.17
06/19/01
ND
18-07
0.00
81-19
09/12/01
ND
16.60
0.00
82.66
12/27/01
N❑
14-61
0.00
84.65
03/05/02
ND
14.96
0.00
84.30
05/12/03
ND
15.17
0.00
84-09
12/09/03
ND
13.55
0.00
85.71
03/23/06
ND
13.55
0.00
85.71
05/08/07
ND
12.93
&00
86.33
05/14/08
ND
13.22
0.00
86.04
05/28/09
ND
13.39
0.00
85.87
05/27/10
N❑
13.23
0.00
86.03
10/31111
ND
13.90
0.00
85.36
`
08123M
N❑
12-14
0.00
85.70
*
03.121195
ND
12.02
0.00
8.5.82
*
08/05/96
ND
1 L99
0.00
85.85
*
11/17/98
N❑
12.53
0.00
85.31
*
06/19/01
NM
NM
NM
NM
09/12/01
ND
12.67
0.00
85.17
MW-8
*
12/27/01
97 84
14.47
15.03
0.56
83.26
'
03/05/02
12.42
12.60
0.18
85.38
05/12/03
NM
NM
NM
NM
12/09/03
13.32
13.56
0-24
84.47
03/23/06
ND
12.15
0.00
85.69
05/08/07
ND
11.90
0.00
85.94
05/14/08
ND
11.95
0.00
85-89
05/28/09
ND
1 1130
0.00
86.14
F qJU WiN� JWOF NIAI N-Aw D#M 1(�A 2DM � 0-p Ic M Tµk. 10Append� d CkVkY a -40d 11W FLw­­Ar( "I AA I1211BL 36IW Page 2 of 5

Appendix A
Historical Groundwater Elevation Data
Former BP Service Station No. 24163
381 Knollwood Street
Winston-Salem, Forsyth County, North Carolina
TOC
Depth to
Depth to
LNAPL
Corrected
11 ell
Date
Elevation
LN AP1.
Groundiwer
Tbicknen
GroundyWer
1
feet bloc
feet bloc
feet
Elevation ! 2y
05/27/10
ND
1_2.97
0.00
NM
10/31/11
ND
13.34
&00
NM
05/22/12
ND
13.69
1.00
NM
06/14/12
ND
14.94
2.00
NM
MW-81Z
07/09/12
NS
ND
14.08
3.00
NlV1
08/ 14112
ND
14.29
4.0U
NM
09/19/12
ND
14.08
5.00
NM
12/05/12
ND
14.53
6.00
NM
02/26/13
ND
13.80
7.00
NM
06/24/93
NM
NM
NM
NM
08/23/94
NM
NM
NM
NM
03/21/95
ND
13.55
0.00
86.99
08/05/96
ND
13.64
0.00
86.80
11/17/98
ND
14.26
0.00
86.18
06/19/01
ND
14.55
0.00
85.99
09/12/01
ND
14.81
0.00
85.63
12/27/01
ND
14.85
0.00
85.59
03/05/02
1 uu.44
ND
14.64
0.00
85.80
05/12/03
ND
13.41
0.00
87.03
12/09/03
ND
13.51
0.00
86.93
03/23/06
ND
13.82
0.00
86.62
05/08/07
ND
13.54
0.00
86.90
05/14/09
ND
13.64
0.00
86.80
05/28/09
ND
13.47
0.00
86.97
05/27/10
ND
13.00
0.00
87.44
10/ 13/ 11
ND
14.14
0.00
86.30
06/24/93
NM
NM
NM
NM
08/23/94
NM
1,141V1
NM
NM
03/21/95
ND
12.83
0.00
87.08
08/05/96
ND
12.77
0.00
87.14
11/17/98
ND
13.58
0.00
86.33
06/19/01
ND
13.80
0.00
86.11
09/12/01
ND
14.18
0.00
85.73
12/27/01
ND
14.29
0.00
85.62
MW-i5
03/05/02
99.91
ND
13.98
0.00
85.93
05/12/03
NM
12.75
NM
87.16
12/09/03
ND
12.89
0.00
87.02
03/23/06
ND
13.14
0.00
8.6.77
05/08/07
ND
12.90
0.00
87.01
05/14/08
ND
13.12
0.00
86.79
05/28/09
ND
12.90
0.00
87,01
05/27/10
ND
12.25
0.00
97.66
10/31/11
ND
13.61
0.00
86.30
1!1!s Wnkmt fbcwiwaiia H^HP N I A I �� H.I. Rgry Zkw Rnwl T"- Z Wn Am-ndw wd OraAm m.i11N 8W Fln.y jJ Apr m A M PjnIII U41M Page 3of5

Appendix A
Historical Groundwater Elevation Data
Former BP Service Station No. 24163
381 knollwood Street
Winston-Salem, Forsyth County, North Carolina
TOC
Depth to
Depth to
LNAPL
Corrected
Well
Date
Elevation
LNAPL
Gmundwaler
Thickness
Gruunds►ater
1
[feet btoc]
feet htocj
feet)
Ele►ation (1)21
06i24;9'
\,.I
\.\1
NN1
`M
08/23/94
NM
NM
NM
NM
03/21/95
ND
12.06
0.00
85.36
08 ON%
ND
12.09
0.00
85.33
11/17/98
ND
12.60
0.00
84.82
06/19/01
ND
12.74
0.00
84.68
09/12/01
ND
12.98
0.00
84.44
12/27/01
NM
NM
NM
NM
I {
03/05/02
97.42
ND
12.83
0.00
84.59
05/12/03
NM
NM
NM
NM
12/09/03
ND
12.13
0.00
85.29
03/23/06
ND
12.18
0.00
85.24
05/08/07
NM
NM
NM
NM
05/14/08
ND
12.03
0.00
85.39
05/28/09
ND
11.96
0.00
95.46
05/27/10
ND
11.69
0.00
85.73
10/31/11
ND
12.45
0.00
84.97
06/24/93
NM
NM
NM
NM
08/23/94
NM
NM
NM
NM
03/21/95
ND
14.42
0.00
85.58
08/05/96
ND
14A0
0.00
85.54
11/17/98
ND
14.91
0.00
85.09
06/19/01
ND
15.03
0.00
84.97
09/12/01
ND
15.28
0.00
84.72
12/27/01
ND
15.37
0.00
84.63
03/05/02
100.00
ND
15. t 5
0.00
84.85
05/12/03
NM
14.15
NM
85.85
12/09/03
ND
14.50
0.00
85.50
03/23/06
ND
14.45
0,00
85.55
05/08/07
N❑
14.22
0.00
85.78
05/14/08
ND
14.22
0.00
85.78
ll5l28109
ND
14.12
0.00
85.88
05/27/10
ND
13.90
0.00
86.10
10/31/11
ND
14.72
0.00
85.28
10/31/11
ND
13.95
NM
86.05
05/22/12
ND
14.10
NM
85.90
06/14/12
ND
13.61
0.00
86.39
M W-1 k
07/09/12
`y
ND
14.05
0.00
85.95
08/14/12
ND
14.43
0.00
85.57
09/19/12
ND
14.34
0.00
85.66
12/05/12
ND
14A2
0.00
85.38
02/26/13
ND
14.67
0.00
85.33
r tms Wcomo ih- b-111,lit Utr� kWw4 2', s„ Am-d MW Mqr Ta r nr �ucANr*" mw PW r�� IAWn -� AK 17 DOI.0 FM Page 4 of 5

Appendix A
Historical Groundwater Elevation Data
Former BP Service Station No. 24163
381 Knollwood Street
Winston-Salem, Forsyth County, North Carolina
►Yell
Date
Toe
Elevation
I
Depth to
LNAPL
feet htac
Depth to
Groundwater
feet btoc
LNAPL
Thickness
feet
Corrected
Groundwater
Elevation l 2
10/31/11
ND
1175
0.00
96.25
05/22/12
ND
13.37
NM
86.63
06/14/12
ND
13.39
0,00
86.61
07/09/12
ND
13.89
0.00
86.11
MW-l9
NS
09/14/12
ND
14.13
0.00
85-87
09/19/12
ND
14.02
0,00
85.98
12/05/12
ND
14.39
0.00
85.61
02/26/13
ND
13.62
0-00
N
WIN
Nulrs
I Measured in feet relative to site datum
2 Carr GW Elev. = (ref. point elevation) - (depth to groundwater) + (LNAPL thickness X L N A PL specific gravity)
3 LNAPL specific gravity assumed to be O 73
• - Prior to URS' work at this Site, monitoring well MW-3 has previously been reported as MW-2, men ttonng well MW-6 has previously been reported as MW-
8, and monitoring well MW8 has previously been reported as MIX-6.
- URS Corporation is not responsible for data generated by others Data included on this table not generated by or on behalf of URS Corporation- North
Carolina (URS) has been taken from documents prepared and submitted to the NCDENR by others and is tncIuded only for ease of rckrece: URS does not
assume or accept any responsibility or liability for the qualtty, accuracy, or completeness of the data included on this table that was not generated by or on behalf'
of URS
LNAPL = Light non-aqucous phase liquid
ND = Not detected
NM = Not measured
NS = Not Surveyed
TOC = Top of casing
btoc = below top of casing
-During the May 2003 sampling event LNAPL was observed in MW-5 Depth w g ound,.vater and thickness ol'LNAPL were not measured
F -WW.16.,iFw lip HP:i1A1.Vm-rUwlquAlp '3 tiw -Aw 4N. Mq� Told Io,w.�ry Jjr w n'p.� 11No(;wF�-iArp�%A%1'7d111�gPm Page 5 of

APPENDIX B
Waste Manifests

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c/o URS Corporation NC
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Marra a5r(17 e, to 27560
Genore7afaPhone: 7p1F-522-o3ao
SHAMROCK ENVIRONMENTAL CORPORATION N . C . U .4.0.O.9.4 ,2.1.4.4
T Tpnspodar2 Cwpiq Himt U.S. EPA M ti aft
B. OrslgniW Fuft Hams and SU Addraue p,g EPA fO Rai"
SHAMROCK ENVIRONMENTAL CORPORATION
610 PAMN AVE., GREENSBORO, NO 27406
[3SW75.1989 H.C.D.9.9.1.2.7.7,7.3.2
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APPENDIX C
Historical Groundwater Analytical Summary

Appendix C
Historical Groundwater Analytical Summary
Former BP Service Station No. 24163
381 Knollwood Street
Winston-Salem, Forsyth County, INC
vrhylbeMne
Toluene
Vien"
E
MTBE
Naphthalene
u L
u L
0,61 J
u 1.
L7 J
u L
< 0.5
u L
8
ug11,
M W-03
5/13/2003
8.5
0.98 J
M W-03
12/9/2003
47A
143
1.9
8.1
< 0.5
37.3
M W-03
3/23/2006
4.5 J
< 0.5
< 0.5 UJ
r I LIJ
< 0.5
5.5
M W-03
5/8/2007
40.4
3.7
l A
2 J
< 0.51
13.1
MW-03
5/14/2008
4.3 J
c 0.8
< 0.7
< 0.8
< 0.8
14
M W-03
5/28/2009
5.4
0.44 J
0.143
0.49 J
< 0.05
5.6
M W-03
5/27/2010
0.44 J
< 0.1 1
0.3 J
< 0.32
< 0.12 LIJ
4.8
r 0. 11
M W-03
10/31 /2011
5.5
0.76
r 0.17 U
0.383
19.1
MW-03
5/22/2012
< 0.43 U
< 0.2
< 0.2
¢ 0.52
-
4.6
MW-03
6/14/2012
12.1
6.7
0.72
4.7
-
15A
MW-03
7/9/2012
2.2
1,6
2.6
3
-
14.7
MW-03
8/14/2012
2
2.1
< 0.13
0.4 J
-
17.9
MW-03
9/19/2012
2.7
0.66
< 0,13
0.33 J
-
19.8
MW-03
12/5/2012
11.3
1.2
OA3 J
1.1 J
-
19.3
MW-03
2/26/2013
0.23 J
< 0.1
< 0.1
< 0.22
-
5.4
Af W-05
3123120(16
11,700
2,440
32,000
13,500
= 320
16,100
MW--05
312312006
11.000
2,370
30.700
13.200
< 310
15,400
11W-05
5,412007
7.410
1,590
21,100
8,920
231
8,830
A1W-05
58/2007
7,400
1,680
20,100
9.290
252
9,360
,liii! 05
5,74.2008
10.000
2,100
29,000
12,000
56 J
18.000
-
AIH?-05
5 14 2008
10.OnO
2.100
30.000
12,000
56 J
18.000
-
MW-05
5.28:2009
7.390
2.330
25.700
13.400
32.2J
6,920
MW-05
5:2&2009
6510
2,240
22,100
12,900
31.6J
6,510
-
MW 05R
5:27,2010
6610
2.810
24,300 J
15.700
< 60 UJ
4.330
440 J
MW-05R
5:2712010
6,090
2,380
30,100J
13,300
< 60 i 1
4.250
335
MW--05R
1OI3112011
8.360
2,870
24,600
14,800
-
4.070
7
MTJ,-05R
1013112011
7.960
2,660
28,000
13.800
3,830
-
M W-05R
5/22/2012
7,980
1470
32,200
19,200
3M0
M W-05R
6! 15/2012
244
227
1.190
L 120
36.9
-
M W-05R
7/9/2012
336JI
481 J
2.010 J
2,400 J
48.411-
MW-05R
8/14/2012
201
283
1,050
1,300
48.5
M W-05R
9/19/2012
158
181
650
883
114
MW-05R
12/5/2012
754
505
2.220
2.380
1,1.60
-
MW-05R
2 26 2013
1,360
878
3,5201
1940
1,660
-
MW-06
5/12/2003
< 0.5
0.52)
0.5
< 1
< 0.5
3
-
MW-06
12/9/2003
2.31
0,64 J
1.1
3.6
e 0.5
17,6
-
M W-06
12/9/2003
141
0,68 J
1.1
3.8
< 0.5
181-
MW-06
3/23/2006
0.76 J
0.591
3.6
2.8 J
< 0.5
11
M W-06
5/8/2007
< 0.5
r 0.5
< 0.5
< 1
< 0.5
< 0.5
-
MW-06
5/14/2008
C 0.5
< 0.8
C 0.7
C O.8
C 0.8
E 0.5
MW-06
5/28/2009
< 0.06
< 0.05
c 0.06
< 0.14
< 0,05
0,1 7 J
MW-06
5/27/2010
E0.11
0.13 J
0.38.1
0.461
< 0.121 UJ
<0.12
f1.1 1
MW-06
10/31/2011
8.7 J
I L7 J
27.5.1
1321
-
< 0.26 i1J
MW-061
5/12/2003
< 0.51
< 0.5
e 0.5
L I J
< 0.5
E 0.5
M W-06I
12/9/2003
< 2.5
r 25
< 2.5
< 5
< 2.5
r 2.5
MW-061
3/23/2006
49.7
18.9
48.7
443
r 15
3,560
MW-061
5/8/2007
< 25
< 25
< 25
< 50
< 25
6.910
MW-061
5/14/20U8
5.2 J
< 2
< 1.8
, 21
6.8 J
3.400
MW-061
5/28/2009
j 2.5
< 0.05
< 0-06
< 0_ 141
2.6
1.150
E WKSMorking DocumenlslBPBP 24163+Semi-.annual Data Rcpon'.a .10 Semi-Annuai Data ReponAVpcndices'•Appendix C-BP 24163 - GW - Hislmrieal Summary;03-25-2013] 1 of 3

Appendix C
Historical Groundwater Analytical Summary
Former BP Service Station No. 24163
381 Knollwood Street
Winston-Salem, Forsyth County, NC
.Sample Date
Benzene
Ethylbenzene
Toluene
Xvtenes otaI
E
MTUE
Naphthalene
Unit:
ugtL
u L
u L
u L
u L
u L
u L
M W-061
5/27/2010
1.6 J
< 1.1
1,1
< 3.2
IA J
492
l . l
M W-061
10/31/2011
0,41 J
< 0.36
< 0.32
< 0.75
-
122
-
MW-08
3/23/2006
671
1,340
1.230
8,100
< 220
124
-
MW-08
5/8/2007
1,1601
799
196
1990
129
1.440
-
M W-08
5/14/2008
6001
1,800
700
3.000
< 2
190
-
MW-08
5/28/2009
1,390
2.050
357
3,310
r 5
1.560
MW-08R
5/27/2010
8.570
2,870
31.700
15,700
< 120 UJ
6,260
468
MW-08R
10/31/2011
8,000
3.180
32.100
17,200
3,170
MW-08R
5/22/2012
8,270
3.360
36,400 J
17,800
-
3,920,-
MW-08R
6/15/2012
726
471
760
2421
963 J
-
MW-08R
7/9/2012
4.540 J
1,870 J
17.100 J
10,800)
-
1.530 J
-
MW-08R
8/14/2012
4.370
1.610
19,300
8,780
2.000
-
MW-08R
9/19/2012
4,780
1.800
20.900
10,400
-
2,600
-
MW-08R
12/5/2012
7.760
2.440
31,900
13,800
-
4.560
-
M W-08R
2126/2013
7.310
2.480
30,500
13,400
4,530
-
MW-14
5/12/2003
< 0.51
< 0,5
< 0.5
< I
< 0.5
0.52 J
MW-14
12/9/2003
< 0.51
<0.5
<0.5
<1
<0,5
5.9
MW-14
3/23/2006
< 0.5
< 0.5
< 0.5
r I
¢ 0.5
r 0.5
MW-14
5/8/2007
<0.5
<0.5
<0.5
r I
<0.5
<0.5
MW-14
5/14/2008
< 0.5
-- 0.8
< 0.7
< 0.8
< 0.8
< 0.5
MW-14
5/28/2009
< 0.06
< 0.05
0.077 J
< 0.14
< 0.05
< 0.06
MW-14
5/27/2010
< 0,11
< 0.11
< 0.11
< 0.32
< 0.12 UJ
C 0,12
< 0.1 1
MW-14
10/31/2011
< 0.13
<0.15
<0.42 U
<0.3
-
<0.13
MW-15
3/23/2006
0.63 J
2.1
<0.5
18.6
< 0.5
1.6
MW-15
5/8/2007
<0.5
<0.5
<0.5
2.2J
<0.5
<0.5
MW-15
5/14/2008
<0.5
<0.8
<0.7
3.7J
<0.8
<0.5
MW-15
5/27/2010
<0.11
¢0.11
<0.11
<0.32
< 12UJ
<0]21
11.1I
M 1k'-15
10/31/2011
< 0.13
< 0,15
< 0.13
< 0.3
< 0.13
MW-16
3/23/2006
< 2.51
90.8
15.8
836
¢ 25
2,811
MW-16
5/14/2008
r 0.5
160
15
L600
<0.8
4.1 J
MW-16
5/27/2010
3.6
54.7 J
5.1
525 J
< 2.4 UJ
1.3
40.6 J
MW-16
10/31/2011
r 0,65
17.2
< 1.4 U
321
< 0,65
MW-17
5/13/2003
57.7
<0.5
<0.5
< 1
5.3
69
-
MW-17
5/13/2003
40.8
< 0.5
< 0.5
< 1
4.7
63.3
-
MW-17
12/9/2003
6,6
0.65)
<0.5
•` 1
5.3
80.6
-
MW-17
3/23/2006
1
r 0.5
< 0.5
< 1
3.4
%9
-
MW-17
5/8/2007
< 0.5
<0.5
< 0.5
< 1
< 0.5
17.4
-
M W-17
5/14/2008
3.7 J
< 0.8
< 0.7
< 0.8
0.91 J
19
MW-17
5/28/2009
7
¢ 0,05
0.076 J
r 0.14
0.68
14.5
-
MW-17
5/27/2010
5.7
< 0.11
r 0.11
< 0.32
0.61 J
12A
0.64
MW-17
10/31/2011
0.51
0.16 J
< 0.81 U
0.57 3
-
8.9
-
MW-18
10/31/2011
3,140
998
11.100
8.950
-
1.140
-
MW-18
5/22/2012
2.280
2.790
18.200
12.000
-
789
-
MW-18
6/15/2012
373
910
4,800
3.910
-
114
-
M W-18
7/9/2012
1.730 J
2,170 J
15M00 J
9.750 J
-
6761
-
MW-18
8/14/2012
10201
1990
24,400
12,800
1.090
MW-18
9/19/2012
3,190
3,090
21600
14,000
-
1,240
-
MW-18
12/5/2012
3.370
2,970
20,100
12.800
1380
MW-18
2/26/2013
2,510
2,970
10,1001
8.690
L140
-
MW-19
10/31/2011
2.390
L380
8.790
7.040
-
5,160
-
M"'-19
5'22/2012
2.700
1.560
14,200
7,940
-
4,980
-
Aq 11 - I
r, I ; 2012
4.020
1.440
18,200
7.940
3,290
E WFL9%Wq&eng Do umml5,B"P 24163',Semi-Annual Dies RaporM.10 Semi -Annual Dam iUport',AppendiceR:Appendix C_RP 24163 - GW - Mx1cricAl Summery (03 25-2G 131 2 of 3

Appendix C
Historical Groundwater Analytical Summary
Former BP Service Station No. 241163
381 Knollwood Street
Winston-Salem, Forsyth County, NC
Sample 1131 Simple Date
Be
a
Toluene
Cvlenes Total
IPk:
NITBE
Sa hthulen
Unit:
u L
u L
u L
u L
u L
u L
rvlw-l9
7/9/2012
575.130
2,910
30,4003
1il'00
5,330
-
MW-19
8/14/2012
1.650
14,200
8370
4.090
-
MW-19
9/19/2012
1,630
12.900
8,640
3.960
WK-19
12/5/2012
2.320
LM
15.200
10.400
-
4MI0
-
MW-19
2/26/201.3
1210
1.1 M
10.600
6,990
-
3.890
-
TW-01
10/21/2010
394
979
35.7
2,970
r 6
116
401
TW-02
10/21/2010
13
376
< 2.2
449
r 2.4
71.6
303
TW-03
10/21/2010
3,960
1,770
15.800
8,490
< 00
1.480
< 110
TW-04
10/20/2010
7,880
2,640
27,200
14.000
<60
7.390
536
TW-04
10/20/2010
7,500
2,480
31,000
13.800
< 240
8,8201
< 220
TW-05
10/20/2010
101
112
350
539
1.51
166
42.2
TW-06
10/21/2010
28.7
1.220
3.100
6,210
< 6
185
331
TW-07
1012112D10
12.2'
Z.6
0.66
2_'
0.433
43.6
37.8
TW-08
1W20/2010
7371
551
435
3.810
< ] 2
86.3
277
-1 W-09
10/20/2010
2.7
C 0.1 I
< 0.1 1
L8
< 0.12
0.56
C 0.1 1
TW- l4
10/20/2010
0.62
r 0.11
< 0.11
0.35 3
r 0.12
0.17 .i
< 0.11
TW-11
10/20/2010
1.3601
2.260
8,010
14,600
r 60
3.4301
465
fW-12
10/20/2010
1.520
711
3,310
5,990
< 24
1961
216
-fly'-13
10/20/2010
2,290
1.750
13,700
11.500
< 60
= 60
426
TW-14
10/20/2010
7,400
2.320
27,100
13.700
<60
7,640
597
TV.- 1'�
] it " 1 _-101 t}
7,720
?.180
27300
13.200
c 60
9,970
505
TW-16
10/21/2010
5.850
].890
13,100
14.300
< 60
14.600
414
TW-17
10/21/2010
< 22
606
60.2 3
6,574
< 24
< 24
386
PI -
Not analyzed
#
Not detected at the specified detection limit
uglL
Micrograms per liter
J
Estimated value
t13
Not detected and the detection limit is estimated value
U
Not present above the associated level. blank contamination exists
IPE
Isopropyl ether
MTBE
Methyl tcn-hutyl ether
This table presents the historical sample results for select volatile organic compounds. Data associated with primary and
field duplicate samples are shown in a italicised font.
E ItMIWO&q Do mmtsSP-SP 24 t63,5ew-Annuli Data Repoo�4 M Semi -Anna! tau RepomlAppendime Appendix C_RP 24163 - GW - Hismriral Summuy ltl}-25.2413) 3 of 3

APPENDIX D
Laboratory Analytical Reports

e-Hardcopy 2. 0
� I
Southeast
E ACCAJTEE3T
L A B 0 A A T❑ R I E 5
Technical Report for
Atlantic Richfield Company
URSNCM:SIS 24163: 381 ICnollwood St, Winston-Salem, NC
38436693.104080
Accutest Job Number: F99616
Sampling Date: 12/05/12
Report to:
URS Corporation
martha . meyers-lee @ urs . co m
ATTN: Martha Meyers
Total number of pages in report: 38
A
Test results contained within this data package meet the requirements garryehaadi, Ph.D.
of the National Environmental Laboratory Accreditation Conference Laboratory Director
and/or state specific certification programs as applicable.
Client Service contact: Heather Wandrey 407-425-6700
Certifications: FL (E83510). LA (03051). KS (E-10327). IA (366). IL (200063). NC (573). NJ (FLD02), SC (96038WI)
DoD ELAP (L-A-B L2229). CA (04226CA). TX (T104704404). AK. AR. GA, KY. MA. NV, OK, UT. VA, WA. WI
This report shall not be reproduced, except in its entirety. without the written approval of Accutest Laboratories.
Tess results relate only to samples analyzed.
Southeast • 4405 Vineland Road • Sulte C-l5 • Orlando, FL 3 28 11 . tel: [phone]DO . fax: [phone] • hitp:llwww.accutest.com
AccutcLt Laboratories Is the sale author it,, for authorizing edits or modifications to this O ACCLJTEEs T
document. Unauthonzed mod ilicat kin tk this report is strictly prohibited. F99616 `"'."""

Table of Contents
Sections:
ff
_1_
Section1: Sample Summary...................................................................................................
3
Section 2: Case Narrative/Conformance Summary..............................................................
4
Scetittn ;: Summan of Hits ........................................... ........................................................
6
Section 4: Sample Results........................................................................................................
8
4.1: F99616-1: TRIP BLANK.............................................................................................
9
4.2: F99616-2: M W-3..........................................................................................................
4.3: F99616-3: MW-5R.......................................................................................................
10
12
a
4.4: F99616-4: M W-8R.......................................................................................................
4.5: F99616-5: MW-18........................................................................................................
14
16
4.6: F99616-6: MW-19........................................................................................................
Section5: Misc. Farms............................................................................................................
18
20
5.1: Chain of Custody...........................................................................................................
21
Section 6: GC/MS Volatiles - QC Data Summaries..............................................................
24
6.1: Method Blank Summary ................................................................................................
25
6.2: Blank Spike Summary ...................................................................................................
28
6.3: Matrix Spike/Matrix Spike Duplicate Summary...........................................................
31
Section 7: General Chemistry - QC Data Summaries..........................................................
34
7.1: Method Blank and Spike Results Summary ..................................................................
35
7.2: Duplicate Results Summary ..........................................................................................
7.3: Matrix Spike Results Summary .....................................................................................
36
37
7.4: Matrix Spike Duplicate Results Summary ....................................................................
38
■ N 2 of 38
EACCLJTEE3T
FS%16 ..........

1
Accutest La6Linkr-)17:00 20-Dec-2012
Sample Summary
Atlantic Richfield Company
Job No: F99616
URSNCM:SIS 24163: 381 Knollwood St, Winston-Salem, NC
Prnject No: 38436693.104080
Sample Collected Matrix Client
Number Date Time By Received Code Type Sample ID
F99616-1 12/05/12 00:00 SHSD 12/06/12 AQ Trip Blank Water TRIP BLANK
F99616-2 12/05/12 11:05 SHSD 12/06/12 AQ Ground Water MW-3
F99616-3 12/05/12 11:40 SHSD 12/06/12 AQ Ground Water M W-5R
F99616-4 12/05/12 12:05 SHSD 12/06/12 AQ Ground Water M W-8R
F99616-5 12/05/12 11:25 SHSD 12/06/12 AQ Ground Water M W-18
F99616-6 12/05/12 12:20 SHSD 12/06/12 AQ Ground Water MW-19
0
■ 3 of 38
ACCLJTE�`F:

1�
SAMPLE DELIVERY GROUP CASE NARRATIVE
Client: Atlantic Richfield Company Job No: F99616
Site: URSNCM:S/S 24163: 381 Knollwood St, Winston-Salem, NC Report Date 12/20/2012 4;56:40 PM
5 Samples and 1 Trip Blank were collected on 12/0512012 and were received at Accutest on 1210612012 properly preserved at 1 Deg. C
and intact. These Samples received an Accutest job number of F9%16. A listing of the Laboratory Sample ID, Client Sample ID and
dates of collection are presented in the Results Summary Section of this report.
Except as noted below. all method specified calibrations and quality control performance criteria were met for this job. For more
information, please refer to QC summary pages.
Volatiles by GCMS By Method SM 6200B
Matrix: AQ Batch ID: VE733
All samples were analyzed within the recommended method holding time_
All method blanks for this batch meet method specific criteria.
Sample(s) F99624-5MS, 1~99624-5MSD were used as the QC samples indicated.
MSIMSD Recovery(s) for Toluene are outside control limits. Outside control limits due to high level in sample relative to spike
amount.
F99616-3: Sample was not preserved to a pH < 2.
F996164: Sample was not preserved to a pH < 2.
F99616-6: Sample was not preserved to a pH < 2.
Matrix: AQ Batch ID: VE735
All samples -o ere analyzed within the recommended method holding time.
All method hIanks for this batch meet method specific criteria.
Samples) F99542-6MS, F99542.6MSD were used as the QC samples indicated.
Matrix: AQ Batch ID: VE736
All samples were analyzed within the recommended method holding time.
All method blanks for this batch meet method specific criteria.
Sample(s) F99735-1MS. F99735-1MSD were used as the QC samples indicated.
Wet Chemistry By Method EPA 3001SW846 9056A
Matrix: AQ Batch ID: GP20643
All samples were prepared within the recommended method holding time.
All samples were analyzed within the recommended method holding time.
All method blanks for this batch meet method specific criteria.
Samples) FA40-1 MS, FA40-1 MSD were used as the QC samples for Sulfate.
Wet Chemistry By Method SM19 2320B
Matrix: AQ Batch ID: GN53179
All samples were analyzed within the recommended method holding time.
All method blanks for this batch meet method specific criteria.
Sample(s) F99694-1 DUP. F99694-1 MS were used as the QC samples for Alkalinity, Total as CaCO3.
Matrix: AQ Batch IUD: GN53304
All samples were analyzed within the recommended method holding time.
All method blanks for this hatch meet method spccific criteria.
Sample(s) F99877-1DUP. F99877-1 MS were used as the QC samples For Alkalinity. Total as CaCO3.
Matrix Spike Recovery(s) for Alkalinity. Total as CaCO3 are outside control limits. Spike amount low relative to the sample amount.
Refer to lab control or spike blank for recovery information.
Thursday, December 20, 2012 Page 1 of 2
No 4 of 38
■,o.GcuT-FST
F99815 -.... I -"'

I
Accutest Laboratories Southeast ALSE certifies that this report meets the eet re uirements for an ( ] pa pray q alytica] data produced for the
samples as received at ALSE and as stater] on the CDC. ALSE certifies that the data meets the Data Quality Objectives for preeision.
accuracy and completeness as specified in the ALSE Quality Manual except as noted above. This report is to be used in its entirety.
ALSE is not responsible for any assumptions of data quality if partial data packages are used
Narrative prepared by-
1
Lovelie Metzgar. QA Officer (signature on file)
Thursday, December 20, 2012
Date: December 202012
Page 2 of 2
■ 5 of 38
■ ACCLJT�ST.
P"616 ..W.. e...

Summary of Hits Page 1 of 2
Job Number: F99616
Account: Atlantic Richfield Company
Project: URSNCM:S/S 24163: 381 Knollwood St, Winston-Salem, NC
Collected: 12/05/ 12 0
Lab Sample ID Client Sample ID Result/
Analyte Qual RL MDL Units Method
F99616-1 TRIP BLANK
No hits reported in this sample.
F99616-2 MW-3
Benzene
11.3
0.50
0.10
ug/l
SM 6200B
Toluene
0.43 J
0.50
0.10
ug/l
SM 6200B
Ethylhenzene
1.2
0.50
0.10
ug/l
SM 6200B
Xylene (total)
1.1 J
1.5
0.22
ug/l
SM 6200B
Methyl Tert Butyl Ether
19.3
0.50
0.10
ug/l
SM 6200B
Alkalinity, Total as CaCO3
369
5.0
0.60
mg/l
SM19 2320E
Carbon Dioxide
377
5.0
5.0
mg/l
SM19 4500002D
Sulfate
0.78 B
2.0
0.60
mg/I
EPA 300/SW846 9056A
F99616-3 MW-5R
Benzene a
754
13
2.5
USA
SM 6200B
Toluene a
2220
25
5.0
ug/l
SM 6200B
Ethylbenzene a
505
13
2.5
ug/l
SM 6200B
Xylene (total) a
2380
38
5.4
ug/l
SM 6200B
Methyl Tert Butyl Ether a
1160
13
2.5
ug/1
SM 6200BS
Alkalinity, Total as CaCO3
4360
25
0.60
mg/l
SM19 2320B
Carbon Dioxide
1840
5.0
5.0
mg/l
SM19 4500002D
Sulfate
13600
1000
300
mg/l
EPA 300/SW846 9056A
F996164 MW-8R
Benzene a
7760
250
50
ug/l
SM 6200E
Toluene a
31900
500
100
ug/l
SM 6200B
Ethylhenzene a
2440
250
50
ug/l
SM 6200B
Xylene (total) a
13800
750
110
ug/1
SM 6200B
Methyl Tert Butyl Ether a
4560
250
50
ug/l
SM 6200B
Alkalinity, Total as CaCO3
1290
25
0.60
mg/l
SM19 2320B
Carbon Dioxide
635
5.0
5.0
mg/l
SM19 4500002O
Sulfate
2410
100
30
mg/l
EPA 300/SW846 9056A
F99616-5 MW-18
Benzene
3370
100
20
ug/l
SM 6200B
Toluene
20100
500
I00
ug/l
SM 6200B
Ethylbenzene
2970
100
20
ug/l
SM 6200B
Xylene (total)
12800
300
43
ug/l
SM 6200E
Methyl Tert Butyl Ether
1380
100
20
ug/l
SM 6200B
Alkalinity. Total as CaCO3
445
5.0
0.60
mg/1
SM19 2320E
■u 6 of 38
ACCLJT�ST.
F99616 ....... ""'

Summary of Hits Page 2 of 2
.lob Number: F99616
Account: Atlantic Richfield Company
Project: URSNCM:S/S 24163: 381 Knollwood St, Winston-Salem, NC
Collected: 12/05/12
Lab Sample ID Client Sample ID Result/
Aoalyte Qua] RL MDL Units Method
Carbon Dioxide
436
Sulfate
32.2
F99616-6 MW-19
Benzene a
2320
Toluene a
15200
)thylbenzene a
1810
Xylene (total) a
10400
Methyl Tert Butyl Ethers
4010
Alkalinity. Total as CaCO3
773
Carbon Dioxide
588
Sulfate
58.8
(a) Sample was not preserved to
a pH < 2.
n
5.0 5.0 mg/l SM 19 45000O2D
10 3.0 mg/1 EPA 300/SW846 9056A
25❑
50
ug/I
SM 6200B
250
50
ug/I
SM 6200B
250
50
ug/I
SM 6200B
750
Ito
ug/l
SM 6200B
250
50
ug/1
SM 6200B
25
0.60
mg/l
SM 19 2320E
5.0
5.0
mg/l
SM 19 45000O2D
10
3.0
mg/l
EPA 300/SW846 9056A
Ec4
■b 7 of 38
�ACCUTE�T.

Section 4
. Southeast
ACCLJTEST
L A 0 Q R A T 0 R I E 5
Sample Results
Report of Analysis
r
■ 8 of 38
■ accu�Es�:
F99616 "

Accutest LabLinkn 17:00 20-Dec-2012
Report of Analysis P_L t i of I
Client Sample 1D: TRIP BLANK a
Lab Sample 1D: F99616-1 Date Sampled: 12/05/12 i
Matrix: AQ - Trip Blank Water Date Received: 12/06/ 12
Method: SM 6200B Percent Solids: nla
Project: URSNCM:S/S 24163: 381 Knollwood St, Winston-Salem. NC
File 11) DF Analyzed By Prep Date Prep Balch Analytical Batch
r-un #1 E021111.13 l 12/12/12 TD nla n A VE733
'Run #2
Purge Volume
Run #1 10,0 mI
Run #2
Purgeable Aromatics, MTBE
CAS No.
Compound
Result
RL
MDL Units Q
71-43-2
Benzene
ND
0.50
0.10 ugll
108-88-3
Toluene
ND
0.50
0.10 ugll
100-41-4
Ethylbenzene
ND
0.50
0.10 ugll
1330-20-7
Xylene {total)
ND
1.5
0.22 ug11
1634-04-4
Methyl Tert Butyl Ether
ND
0.50
0.10 ugll
CAS No.
Surrogate Recoveries
Run# 1
Run# 2
Limits
1868-53-7
Dibromofluoromethane
9611/6
70-130%
17060-07-0
1,2-Dichloroethane-D4
97%
70-130%
2037-26-5
Toluene-138
101%
70-130%
460-00-4
4-Bromofluorobenaene
108%
70-130%
ND = Not detected MDL - Method Detection Limit ! = Indicates an estimated value
RL = Reporting Limit B = Indicates analyte found in associated method blank
E = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound
t
■� 9 of 38
E ACCUTEST.
F"Gig ••�•• "• ••

Accutest LabLinkrA317:00 20-Dec-2012
Report of Analysis Page 1 of 1
Client Sample 1D: MW-3
Lab Sample 1D: F99616-2 Date Sampled: 12/05/12
Matrix: AQ - Ground Water Date Received: 12/06/ 12
Method: SM 6200B Percent Solids: nla
Project: URSNCM:SIS 24163: 381 Knollwood St, Winston-Salem. NC
File ID DF Analyzed By Prep Date Prep Batch Analytical Batch
Run #1 E021121.13 1 12/12/12 TD n a nia V1,733
Run #2
Purge Volume
Run # 1 10.0 ml
Run #2
Purgeable Aromatics, MTBE
CAS No.
Compound
Result
RL
MDL Units Q
71-43-2
Benzene
11.3
0.50
0.10 ugll
108-88-3
Toluene
0.43
0.50
0.10 ugl] J
100-41-4
Ethylbenzene
1.2
0.50
0.10 ugll
1330-20-7
Xylene {total}
1.1
1.5
0.22 ugll J
1634-04-4
Methyl Tert Butyl Ether
19.3
0.50
0.10 ugl]
CAS No.
Surrogate Recoveries
Run# 1
Run# 2
Limits
1868-53-7
Dibromofluoromethanc
96%
70-130%
17060-07-0
1.2-Dichloroethane-D4
97%
70-130%
2037-26-5
Toluene-138
101%
70-130%
460-004
4-Bromofluorobenzene
109%
70-130%
ND = Not detected MDL - Method Detection Limit
RL = Reporting Limit
E = Indicates value exceeds calibration range
J = Indicates an estimated value
B = Indicates analyte found in associated method blank
N = Indicates presumptive evidence of a compound
I
1
C® 10 of 38
AC(--U -rEST.
F99616 ............

1
1
r
1
Accutest LabLinkfu�17:00 20-Dec-2012
Report of Analysis
Client Sample ID: M W-3
Lab Sample ID: F99616-2 Date Sampled: 12/05/12
Matrix: AQ - Ground Water Date Received: 12/06/12
Percent Solids: nla
Project: URSNCM:SIS 24163: 381 Knoliwood St. Winston-Salem. NC
General Chemistry
Analvte
Result
Alkalinity. Total as CaCO3
369
Carbon Dioxide
377
Sulfate
0.78 B
RL = Reporting Limit
MDL = Method Detection Limit
RL
MDL
Units DF
5.0
0.60
mgll 1
5.0
5.0
mgll 1
2.0
0.60
mgll i
Page 1 OF i
A
nQ
0
Analyzed
By
Method
12J 11112
AC
5M 19 2320E
12111 It 2
AC
SM 19 45000O2D
12.1181t2 17:28 AA
EPA 300/SW846 9056A
U = Indicates a result < MDI.
B = Indicates a result > = MDL but < RI,
Sr 11 of 38
(] ACCIJTEST
F9951fi ,.,•.••. •.••

Accutest LabLink &..17:00 20-Dec-2012
Report of Analysis
Client Sample ID: MW-5R
Page 1 of l
Lab Sample ID: F99616-3
Date Sampled:
12/05/12
Matrix:
AQ - Ground Water
hate Received:
12/06/12
Method:
SM 6200B
Percent Solids:
n/a
Project:
URSNCM:SIS 24163: 381 Knoilwood St, Winston-Salem, NC
File ID DF Analyzed By
Prep Date Prep Batch
Analytical Batch
Run #1 a
E021108.D 25 12/12/12 TD
n.'a n a
VE733
Run #2 a
E021118. D 50 12/ 12/ 12 TD
nla Wa
VE733
Purge Volume
Run # 1 11.), 0 m l
Run #2 1 (). 0 m 1
Purgeahle Aromatics, MTBE
CAS No.
Compound
71-43-2
Benzene
108-88-3
Toluene
100414
Ethylbenzene
1330-20-7
Xylene (total)
1634-044
Methyl Tert Butyl Ether
CAS No.
Surrogate Recoveries
I868-53-7
Dibromofluoromethane
17060-07-0
1.2-D ichl oroeth ane-D4
2037-26-5
Toluene-138
460-004
4-Bromof uorohenzene
(a) Sample was not preserved to a pH < 2.
(b) Result is
from Rung 2
Result
RL
MDL
Units Q
754
13
2.5
ugll
2220 b
25
5.0
ugll
505
13
2.5
ugll
2380
38
5.4
ug11
1160
13
2.5
ug,/l
Run# I Run# 2 Limits
88%
92%
70-130%
96%
98%
70-130%
101%
102%
70-130%
108%
108%
70-130%
ND = Not detected MDL - Method Detection Limit
RL = Reporting Limit
E = Indicates value exceeds calibration range
J = Indicates an estimated value
B = Indicates analyte found in associated method Mani:
N = Indicates presumptive evidence of a compound
1
■m. 12 of 38
� .o,ccur�sT
F99616 ............

r
Accutest LabLinkn17:00 20-Dec-2012
Report of Analysis
Client Sample ID: MW-5R
Lab Sample 1D: F99616-3 Date Sampled: 12/05/ l2
Matrix: AQ - Ground Water Date Received: 12/06/12
Percent Solids: n/a
Project: URSNCM;S/S 24163: 381 knolltsood St, Winston-Salem, NC
General Chemistry
Anslyte
Result
Alkalinity, Total as CaCO3
4360
Carbon Dioxide
1840
Sulfate
13600
Page 1 of i
RL
MDL
Units
DF Analyzed By
Method
25
0.60
mg/1
1 12/ 18/ 12 AC
SM 19 2320E
5.0
5.0
mg/ l
1 12120/ 12 AC
SM 19 45000O2D
1000
300
mg/1
500 17/18/12 17 43 AA
EPA 300/SW$469036A
P,
W
RL = Reporting Limit U = Indicates a result < MDL
MDL = Method Detection Limit H = Indicates a result > = MDL but < Rl.
■� 13 of 38

Accutest LabLink@17:00 20-Dec-2012
Report of Analysis
aient Sample 1D: MW-8R
.ab Sample ID: F99616-4 Date Sampled: 12/05/12
Matrix: AQ - Ground Water Date Received: 12/06/12
Rethod: SM 6200B Percent Solids: nla
'roject: URSNCM:S/S 24163: 381 Knollwood St, Winston-Salem, NC
Page I o1 i
File ID
DF
Analyzed
By
Prep Date
Prep Batch
Analytical Batch
Run 41 a E021109. D
500
12/12/12
TD
n!a
nla
VE733
Run 42 s E021122. D
1000
12112/ 12
TD
n!a
nla
VE733
Purge Volume
un # I 10.0 ml
on 42 10.0 mi
Purgeable Aromatics, MTBE
CAS No.
Compound
7143-2
Benzene
108-88-3
Toluene
100-41-4
Ethylbenzene
1330-20-7
Xylene [total]
1634-04-4
Methyl Tert Butyl Ether
CAS No.
Surrogate Recoveries
1868-53-7
Dibromofluoromethane
17060-07-0
1.2-Dichloroethane-D4
2037-26-5
Toluene-D8
460-00-4
4-Bromofluorobenzene
(a) Sample was not preserved to a pH < 2.
(b) Result is
from Run# 2
Result
RL
MDL tlnits Q
7760
250
50 ugll
31900 b
500
100 ugll
2440
250
50 ugll
13800
750
I10 ug11
4560
250
5o ugll
Run# i
Run# 2
Limits
94%
95%
70-130%
97%
98%
70-130%
102%
101%
70-130%
107%
108%
70-130%
ND = Not detected MDL - Method Detection Limit
RL = Reporting Limit
E = Indicates value exceeds calibration range
J = Indicates an estimated value
B = Indicates analyte found in associated method blank
N = Indicates presumptive evidence of a compound
A
10
■r. 14 of 38
ACCLITEST.
F99616

Accutest LabLinlc(d.17:00 20-Dec-2012
Report of Analysis
Client Sample ID: MW-811
Lab Sample ID: F99616-4 Date Sampled: 12/05/12
Matrix: AQ - Ground Water Date Received: 12/06/12
Percent Solids: nfa
Project: URSNCM:SIS 24163: 381 Knollwood St, Winston-Salem. NC
General Chemistry
Analyte Result
Alkalinity, Total as CaCO3 1290
Carbon Dioxide 635
Sulfate 2410
RL = Reporting Limit
MDL = Method Detection Limit
IIau L� I ;)f' i
RL
MDL
Units DF
Analyzed By
Method
25
0.60
Me 1
12/ 18/ 12 AC
SM 19 2320B
5.0
5.0
mg/l 1
12/20/12 AC
SM194500CO2D
100
30
mgll 50
12/18/12 17:58 AA
£PA 3001SW846 9056A
U = Indicates a result < MDL
B = Indicates a result > = MDL but < Rl.
■i 15 of 38
8 ACCLJTEST.

Accutest LabLinka17:00 20-Dec-2012
Report of Analysis
Client Sample ID: MW-18
Lab Sample ID: F99616-5 Date Sampled: 12/05/12
Matrix: AQ - Ground Water Date Received. 1.2/06/12
Method: SM 6200B Percent Solids: nla
Project: URSNCM.S/S 24163. 381 Knollwood St. Winston-Salem, NC
Page I oi' l
File ID
DF
Analyzed
By
Prep slate
Prep Batch
Analytical Batch
Run 41 E021181.13
200
12/14/12
TD
nla
nla
VE735
Run #2 E021216.13
1000
12/17/12
DP
nla
nla
VE736
Purge Volume
Run 01 10.0 ml
Run #2 10.0 ml
Purgeable Aromatics, MTBE
CAS No.
Compound
71-43-2
Benzene
108-88-3
Toluene
100-41-4
Ethylbenzene
1330-20-7
Xylene (total)
1634-04-4
Methyl Tert Butyl Ether
CAS No.
Surrogate Recoveries
1868-53-7
Dibromofluoromethane
17060-07-0
1,2-Dichloroethane-D4
2037-26-5
Toluene-D8
460-004
4-Bromofluorobenzene
(a) Result is from Run# 2
Result
RL
MDL
Units Q
3370
100
20
ugll
20100 a
500
100
ugll
2970
100
20
ugll
12800
300
43
ugll
1380
100
20
ugl]
Rung 1 Rung 2 Limits
94%
97%
70-130%
98%
101%
70-130%
101%
102%
70-130%
109%
109%
70-130%
ND = Not detected M D L - Method Detection Limit
RL = Reporting Limit
E = Indicates value exceeds calibration range
J = Indicates an estimated value
B = Indicates analyte found in associated method blank
N = Indicates presumptive evidence of a compound
■`- 16 of 38
0 ACCUTEBT:

Accutest Labl-inkCd17:00 20-Dec-2012
Report of Analysis
CBent Sample ID: MW-18
Lab Sample ID: F99616-5 Date Sampled: 12/05/12
Matrix: AQ - Ground Water Date Received: 12/06/ 12
Percent Solids: nla
Project: URSNCM:SIS 24163: 381 Knollwood St. Winston-Salem. NC
General Chemistry
Analyte
Result
Alkalinity'. Total as CaCO3
445
Carbon Dioxide
436
Sulfate
32.2
RL = Reporting Limit
MDL = Method Detection Limit
Page I of I
RL
MDL
Units
DF
Analyzed By
Method
5.0
0.60
mgll
1
12/11/12 AC
SM 19 2320E
5.0
5.0
mg/1
1
1211 l/ 12 AC
SM 19 45000O2D
10
3.0
mgll
5
12/18/ 12 1813 AA
EPA 3001SW846 9056A
U = Indicates a result < MDL
B = Indicates a result > = MDL but < Rl.
1.1. 17 of 38
A CGLJ-rEFST

Accutest LabL ink@ 17:00 20-Dec-2012
Report of Analysis
Client Sample ID: MW-19
Lab Sample 1D: F99616-6 Date Sampled: 12/05/12
Matrix: AQ - Ground Water Date Received: 12/06/ 12
Method: 5M 6200B Percent Solids. nla
Project: URSNCM:SIS 24163: 381 Knollw'ood St, Winston-Salem, NC
Page 1 oi' 1
File ID DF Analyzed By Prep Date Prep Batch Analytical Batch
Run #1 a E021110.13 500 12/12/12 'I'D 17 a n a VE733
Run #2
Purge Volume
Run 01 10,6m1
Run #2
Purgeable Aromatics, MTBE
CAS No.
Compound
Result
RL
MDL Units Q
71-43-2
Benzene
2320
250
50
ugll
108-88-3
Toluene
15200
250
50
ug/l
100-41-4
Ethylbenzene
1810
250
50
ugll
1330-20-7
Xylene [total]
10400
750
110 ugll
1634-04-4
Methyl Tert Bury] Ether
4010
250
50
ugll
CAS No.
Surrogate Recoveries
Run# 1
Run# 2
Limits
1868-53-7
Dibromofluoromethane
95%
70-130%
17060-07-0
1,2-Dichloroethane-D4
98%
70-130%
2037-26-5
Toluene-138
102%
70-130%
460-00-4
4-Bromofluorobenzene
107%
70-130%
(a) Sample was not preserved to a pH < 2.
ND = Not detected MDL - Method Detection Limit J = Indicates an estimated value
RL = Reporting Limit B = Indicates analyte found in associated method blank
E = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound
■a 18 of 38
At�CL1T>=ST.
F99616

Accutest LabLinkod17:00 20-Dec-2012
Report of Analysis
'lient Sample I D: M W-19
,ah Sample ID: F99616-6 Date Sampled: 12/05/12
Aatrix: AQ - Ground Water Date Received: 12/06/12
Percent Solids: nla
'reject: URSNCM:S/S 24163: 381 1{nollwood St, Winston-Salem, NC
General Chemistry
Analyte
Alkalinity, Total as CaCO3
Carbon Dioxide
Sulfate
Page I � •; I
Result
RL
MDL
Units
DF Analyzed By
Method
773
25
0.60
mo
1 12118/ 12 AC
SM 19 2320B
588
5.0
5.0
mg/1
1 ID20112 AC
SM1945000O2D
58A
10
3.0
mgll
5 12/18/12 18 27 AA
EPA 3001SW846 9056A
RL = Reporting Limit
MDL = Method Detection Limit
U = Indicates a result < MDL
l3 = Indicates a result > = MDL but < RL
�■ 19 of 38
�ACCLJTEST.
F99616 "'•, ••••••

Section 5
. Southeast
M ACCUTEST
LAD0RA'r❑HYEs
Misc. Forms
Custody Documents and Other Forms
Includes the following where applicable:
• Chain of Custody
■ 20 of 38
ACCUTEST.

Laboratory Management Program LaMP"Chain nkMody Record
■■■
■■
■■■■
■
■
■■■■
■
■■■■■■■■■■
-- .. - .
oo
■mom
F9961 G: Gain of Custody
Page 1 of 3
cn
i
21 of 38
� s�.ccuTe�T

ACC LARWAT08MS SAW�LL�E,pR�ECEIPT CONFIRMATION
AcCUTESrs ]oB NLiM$ER: :�1t7 [-��5► , FRn7ECT: �
DATEITAN(E RECEIVED: [AMl!]s M 24:00} NUMBER OF COOLERS RHCEIVm--- �
METHOD OF DELI VERY: FEDBR UPS A UTEST COURIER GREYHOUND DELIVERY OTW
AMBILL NUMEBER5: _ �9 q2- 3V7 l 3?-L) _ -
COOLER, INFORMATION TIO
CUSTODY SEAL NOT PRESENT OR,'NGT INTACT THERM ID CORR_ FACTOR:
CHAIN OF CUSTODY NOT RECEIVED (COC) OBSERVED TEMPS:
AXA.LYMSREQUESMIStNCLEAILDRIESSD4G ORRECFED TEMPS:
SAMPLE DATES OR TIMES UNCLEAR OR MISSING SAMPLE INFORMATIO,
TEM[PERATURE CRITERIA NOT MET SAMPLE LABELS PRESENT ON ALL BOTTLES
T ICE PB E SENI RRECT NUMBER OF CONTAINERS USED
TRIP BLANK LNF'ORMATI0
TRJUP BLANK PROVIDED
TRIP BLAME NOT PROVIDED
TRIPRLAML NOT ON CDC
TRIP BLAME INTACT
TRIP BLANK NOT INTACT
CDRECErVELD WATER TRIP BLANK
L_LPECEIVED SOIL TRIP BLANK
NUMBER OF ENCORES 7 25-GRAM 5-93RAM
NUMBER OF SM 3 FIELD KITS 7
MMIEEB OF LAB FILTERED METALS 7
TECHNICIAN
NF 12114
RECEIVED IMPROPERLY PRESERVED
LUKE FOR ANALYSIS
COC DO NOT MATCH SAMPLE I Amu
S ON CDC DO NOT MATCH LABEL
IC VIALS GAVE HEAD'SPACE (MACRO BUBBLES)
TITLES RECUVED BUT ANALYSIS NOT REQUESTED
! BOTTLES RECENE,D FOR ANALYSIS REQUESTED
1CLEARF&TERIHG OR COYSPOSI ma INSmucnONS
J"LECONTAINER(S) RECEIVED BROKEN
SOLIDS !AR NOT RRC N YED
33 F=DKIT FROZEN wrnMi 41 HOUR'S
IDDAL C13LGRDM PRESENT
WPICABLE TO @A 90 WAMS Ott WGILTB CARDLDiAORGANICSt
receipt wmflTmmion 122910.4s
F99616: Chain of Custody
Page Z of 3
22 of 38
\ LJT7=8T.
F99616 ""'""I""'"

54ir N, 7WS 1417[
Work order I4l9S,4Vi
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ACCUTEST KIT REQUEST FORM
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Laeatiao:
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SSZS
Aaalybw.mk a ra he rardutied in axer- wok:
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lint reZubary levels are ■clkved. Resells are to be reported K, the Method Lkte.amm L4wl- Sample moeeeiraliow [hat are less than the PQL,
but graver Than the MDI. arc W be 2-flagged.
AwlylkalTAT: 5tor led
lab C.enilkativr: NC OW()
Ekeereek Be lkerahle: La�ldly agrt Gadlieiee Caac NrotaNre`fnmmary of seamk xcsaltr reel aswcutal OC rauY> Ss®eie
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0 V9

Section 6
Southeast
� ACCUTEST
l_ A13❑i-iAT❑RI ES
GUMS Volatiles
QC Data Summaries
Includes the following where applicable:
• Method Blank Summaries
• Blank Spike Summaries
• Matrix Spike and duplicate Summaries
r-
■ 24 of 38
N .4CC4JTEST.

Method Blank Summary Page I of 1
Job Number- F99616
Account: BPAMSS Atlantic Richfield Company
Project: URSNCM:SIS 24163: 381 Knollwood St, Winston-Salem. NC
Sample
File ID DF
Analyzed
By
Prep Date
Prep Batch
Analytical Batch
VE733-MB
E021096.D 1
12/12/12
TD
nla
nla
VE733
The QC reported here applies to the following samples: Method: SM 6200B
F99616-1. F99616-2. F99616-3. F99616-4. F99616-6
CAS No.
Compound
Result
RL MDL
Units Q
7143-2
Benzene
ND
0.50 0.10
ugll
100414
Ethylbenzene
N D
0.50 0.10
ugll
1634-04-4
Methyl Tert Butyl Ether
ND
0.50 0.10
ugll
108-88-3
Toluene
ND
0.50 0.10
ugll
1330-20-7
Xylene (total)
ND
1.5 0.22
ugl]
CAS No.
Surrogate Recoveries
Limits
1868-53-7
❑ibromofluoromethanc
96%
70-130%
17060-07-0
1.2-Dichloroethanc-174
100%
70-130%
2037-26-5
Toluene-D8
103%
70-130%
460-00-4
4-Bromofluoroben zene
109%
70-130%
■ 25 of 38
ACC�iJT�ST.

Method Blank Summary Page 1 of 1
Job Number: F99616
Account: BPAMSS Atlantic Richfield Company
Project: URSNCM:SIS 24163: 381 Knollwood St, Winston-Salem, NC
Sample
File 1D DF
Analyzed
By
Prep Date
Prep Batch
Analytical Batch
VE735-MB
E021165.13 1
12/14/12
TD
nla
n Li
VE735
The QC reported here applies to the follo►►ing samples: Method: SM 6200B
F99616-5
CAS No.
Compound
Result
RL MDL
Units Q
71-43-2
Benzene
ND
0.50 0.10
ugll
100-414
Ethylbenzene
ND
0.50 0.10
ugl]
1634-044
Methyl Tert Butyl Ether
ND
0.50 0.10
ug11
1330-20-7
Xylene (total)
ND
1.5 0.22
ugll
CAS No.
Surrogate Recoveries
Limits
1868-53-7
Dibromofluoromethane
94%
70-130%
17060-07-0
1.2-Dichloroethane-D4
98%
70-130%
2037-26-5
'toluene-138
102%
70-130%
460-00-4
4-Bromofluorobenzene
109%
70-130%
06 26 of 38
OACCUTEST.
F9961fi • •","• •".•

Method Blank Summary Page 1 4)t 1
Job Number: F99616
Account: BPAMSS Atlantic Richfield Company
Project: URSNCM:SIS 24163: 381 Knoll -wood St, Winston-Salem, NC
Sample
File ID DF
Analyzed
By
Prep Date
Prep Batch
Analytical Batch
VE736-MB
E021204. D 1
12/ 17/ 12
❑P
nla
n1a
VE736
The QC reported here applies to the following samples:
F 99616-5
CAS No. Compound Result RL
108-88-3 Toluene ND 0.50
Method: SM 6200B
MDL Units Q
0.10 ugll
CAS No.
Surrogate Recoveries
Limits
I868-53-7
❑ibromofluoromethane
97%
70-130%
17060-07-0
1.2-Dichloroethane-D4
100%
70-130%
2037-26-5
Toluene-138
102%
70-130%
460-00-4
4-Bromofluorobenxene
108%
70-130%
elk 27 of 38
ACCUi-I=ST.
F"616 ...... a""'

Blank Spike Summary Page 1 of 1
.lob Number: F99616
Account: BPAMSS Atlantic Richfield Company
Project: URSNCM: SIS 24163: 381 Knollwood St, Winston-Salem- NC
Sample
File ID DF
Analyzed
By
Prep Date
Prep Batch
Analytical Batch
VE733-BS
E021094_D 1
12/12/12
TD
n/a
nla
VE733
The QC reported here applies to the following samples: Method: SM 6200B
F99616-1. F99616-2, F99616-3, 1`99610-3. 1 99616-6
CAS No. Compound
71-43-2
Benzene
100-41-4
Ethylbenzene
1634-04-4
Methyl Vert Butyl Ether
108-88-3
Toluene
1330-20-7
Xylene [total]
CAS No. Surrogate Recoveries
1868-53-7 Dibromofiuoromcthane
17060-07-0 1, 2-Dichloroethane-D4
2037-26-5 ` oluene-D8
460-00-4 4-Brnmofluorobenzene
* = Outside of Control Limits.
Spike
BSP
BSP
ug/l
ugll
%
Limits
10
10.5
105
70-130
10
10.6
106
70-130
10
11.3
113
70-130
10
10.3
103
70-130
30
29.2
97
70-130
BSP Limits
98%
70-130%
100%
70-130%
101%
70-130%
107%
70-130%
5P
w
�a
■ 28 of 38
■.4CCLJTEST.
F9951fi "�

Blank Spike Summary Page 1 of I
Job Number: F99616
Account: BPAMSS Atlantic Richfield Company
Project: URSNCM:S/S 24163: 381 Knollwood St. Winston-Salem. NC
Sample
File ID DF
Analyzed
By
Prep Date
Prep Batch
Analytical Batch
VE735-BS
E021163.D 1
12/14/12
TD
n a
n/a
VE735
The QC' reported here applies to the following samples:
F996 16-5
Spike
BSP BSP
CAS No.
Compound
ugll
uglt %
Limits
71-43-2
Benzene
10
12.6 126
70-130
100-41-4
Ethyibenzene
10
12.6 126
70-130
1634-044
Meth►•! Tert Buts] Ether
10
13.0 130
70-130
1330-20-7
Xylene (total)
30
35.0 117
70-130
CAS No.
Surrogate Recoveries
BSP
Limits
1868-53-7
Dibromofluoromethane
96°/6
70-130%
17060-07-0
1.2-Dichloroethane-D4
96%
70-130%
2037-26-5
Toluene-D8
I00%
70-130%
460-00-4
4-Bronto11uorobenzene
I07%
70-130%
* _ Outside of Control Limits.
Method: SM 6200B
■■ 29 of 38
E.4CCLJTE^E T.

Blank Spike Summary Page 1 of l
Job Number: F996I6
Account: BPAMSS Atlantic Richfield Company
Project: URSNCM:SIS 24163: 381 knollwood St_ Winston-Salem, NC
Sample
File ID DF
Analyzed
By
Prep hate
Prep Batch
Analytical Batch
VE736-BS
F021201D 1
12/17/12
DP
n a
n:a
VF736
The QC reported here applies to the following samples: Method: SM 6200B
F99616-5
CAS No. Compound
108-88-3 TUlurnc
CAS No. Surrogate Recoveries
1868-53-7 ❑ibromofluoromethane
17060-07-0 I.2-D i c h l oroeth ane- D 4
2037-26-5 Toluene-138
460-004 4-Bromofluorobenzene
* = Outside of Control Limits.
Spike
BSP
BSP
ug/l
ug/I
% Limits
10
12.5
125 70-130
BSP Limits
99% 70-130%
102% 70-130%
99% 70-130%
106% 70-130%
■ 30 of 38
■ ACCLJTESI:
F99616

Matrix Spike/Matrix Spike Duplicate Summary Page I of 1
Job Number: F99616
Account: BPAMSS Atlantic Richfield Company
Project: LIRSNCM:S/S 24163: 391 Knollwood St. Winston-Salem, NC
Sample
File I
DF
Analyzed
By
Prep Date
Prep Batch
Analytical Batch
F99624-5MS
E0211 I9. D
250
12/12/12
TD
n/a
n/a
VE733
F99624-5MSD
E021120.13
250
12/12/12
TD
n/a
n/a
VE733
F99624-5
E02111&D
250
12/12/12
TD
n/a
n/a
VE733
The QC reported here applies to the following samples: Method: SM 6200B
F99616-1. F99616-2, F99616-3. F99616-4. F99616-6
F99624-5
Spike
MS MS
MSD
MSD
Limits
CAS No.
Compound
ug/I Q
ug/l
ug/I %
ug/I
%
RFD
Rec/RPD
71-43-2
Benzene
5800
2500
7900 80
7740
78
1
70-130/20
100-41-4
Ethylhenzene
1870
2500
4250 95
4140
91
3
70-130/20
1634-04-4
Methyl Ter( Butyl Fther
59.8 J
2500
2380 93
2390
93
0
70-130/20
108-88-3
Toluene
22000 E
2500
21500 -20* a
2I100
-36* a
2
70-130/20
1330-20-7
XvIene (total l
8140
7500
14800 89
14400
83
3
70-130/20
CAS No.
Surrogate Recoveries
MS
MSD
F99624-5
Limits
1968-33-7
❑ihromofluoromethane
98%
97%
95%
70-130%
17060-07-0
1.2-Dichloroethane-D4
1000/0
100%
98%
70-I30%
2037-26-5
Toluene-138
99%
990/a
101%
70-130%
460-004
4-Bromofluorohenzene
106%
107%
108%
70-130%
(a) Outside control limits due to high level in sample relative to spike amount.
* = Outside of Control limits.
31 of 38
ACCLJT�ST.
F99616

Matrix Spike/Matrix Spike Duplicate Summary Page 1 of 1
Job Number: F99616
Account: BPAMSS Atlantic Richfield Company
Project: URSNCM:SIS 24163: 381 Knollwood St- Winston-Salem, NC
Sample
File ID DF
Analyzed
By
Prep Date
Prep Batch
Analytical Batch
F99542-6MS
E021179.1) 1
12/14/12
TD
nla
nla
VE735
F99542-6MSD
E021180.D 1
12/14/12
TD
nla
nla
VE735
F99542-6
E021172.D 1
12/14/12
TD
nla
nla
VE735
The QC reported here applies to the follo"ing samples: Method: SM 6200B
F99616-5
F99542-6
Spike
MS
MS
MSD
MSD
Limits
CAS No.
Compound
ug/l Q
ugll
ug/l
%
ug/l
%
RPD
Rec/RPD
71-43-2
Benzene
ND
10
9.5
95
9.4
94
1
70-130120
100414
Ethyibenzene
ND
10
9.2
92
9.3
93
1
70-130120
1634-04-4
Methyl Tert Butyl Ether
ND
10
8.9
89
8.7
87
2
70-130120
1330-20-7
Xylene (total)
ND
30
26.0 87
26.0
87
0
70-130120
CAS No.
Surrogate Recoveries
MS
MSD
F99542-6
Limits
1868-53-7
Dibromof]uoromethane
98%
97%
95%
70-130%
17060-07-0
1,2-Dichloroethane-D4
102%
101%
99%
70-130%
2037-26-5
Toluene-D8
99%
100%
101%
70-130%
460-00-4
4-Bromofluorobenzene
107%
108%
108%
70-130%
* = Outside of Control Limits.
■H 32 of 38
)♦ACUTE�--;T.
F99616 ...e...,...

Matrix Spike/Matrix Spike Duplicate Summary Page 1 of 1
Job Number: F99616
Account: BPAMSS Atlantic Richfield Company
Project: URSNCM:SIS 24163: 381 Knollwood St, Winston-Salem, NC
Sample
File I
DF
Analyzed
By
Prep ante
Prep Batch
Analytical Batch
F99735-1MS
E021214,13
20
12/17/12
OP
nla
nla
VE736
F99735-IMSD
E021215.D
20
12/17/12
DP
nla
nla
VE736
F99735-1
E021209.❑
20
12/17/12
DP
nla
nla
VE736
The QC reported here applies to the Following samples: Method: SM 6200B
F99616-5
F99735-1 Spike MS MS MSD MSD Limits
CAS No. Compound ug/l Q ugll ug/l % ug/l % RPD Rec/RPD
108-88-3 Toluene 6.1 J 200 263 128 259 126 2 70-130/20
CAS No.
Surrogate Recoveries
NIS
MSD
F99735-1
Limits
1868-53-7
Dibromotluoromethane
98%
99%
96%
70-130%
17060-07-0
1.2-Dichloroethane-D4
102%
102%
103%
70-130%
2037-26-5
Toluene-D8
98%
99%
102%
70-130%
460-00-4
4-Bromofluorohenaene
105%
107°/a
107%
70-130%
* = Outside of Control Limits.
as 33 of 38
F99616 •"•e..,.,...

Section 7
■ Southeast
ACCLJT'EST
LA0 Q H A ILIH I L 5
General Chemistry
QC Data Summaries
Includes the following where applicable:
• Method Blank and Blank Spike Summaries
• Duplicate Summaries
■ Matrix Spike Summaries
1�
■ 34 of 38
ACCI_iTEST.
F99616

METHOD BLANK AND SPIKE RESULTS SUMMARY
GENERAL CHEMISTRY
Login Number: F99616
Account: BPAMSS - Atlantic Richfield Company
Project: IIRSNCM:SIS 24163; 381 Knollwood St, Winston-Salem, NC
MB Spike BFP SSP QC
Analyte Batch ID RL Result Units Amount Result %Recov Limits
Alkalinity, Total as CaCO3 GN53179
5.0
O.BO
Alkalinity, Total as CaCO3 GN53304
25
2.5
chloride
GP206431GN53336
2.0
0.0
Flucride
GP206431GN53336
0.20
010
Nitrogen, Nitrate
G?206431GN53336
0.10
0.0
Nitrogen, Nitrite
GP20643/GN53336
0,1C
0,0
Sulfate
GP206431GN53336
2.0
0.0
Associated Samples:
Batch GN53179: F99616-2,
F99616-5
Batch GN53304: F99616-3,
F99616-4, F99616-6
Batch GP20543; F99615-2,
F99616-3, F99516-4, F99616-5,
F99616-5
(*I Outside of QC limits
mg/l
250
250
100.0
mgll
250
245
99.0
mgll
50
51.9
103,8
mg/I
2.5
2.56
102.4
"/1
2.5
2.51
100.4
mgll
2.5
2.57
102.8
mgll
50
51.9
103.8
90-1131
90-1131
90-110%
90-110t
90-110%
90-1i0%
9❑-1109
■ 35 of 38
■ .acr--uTes-:
F99616 ' """""`

DUPLICATE RESULTS SUMMARY
GENERAL CHEMISTRY
Login Number: F99616
Account: BPAMSS - Atlantic Richfield Company
Project: URSNCM:SIS 24163: 361 Hnollwood St, Winston-Salem, NC
❑C Original DUP pC
Analyte Batch ID Sample Units Result Result RPD Limits
Alkalinity, Total as CaCO3 GN53179 F99694-1 mgll 189 185 2.5 0-20%
Alkalinity, Total as CaCQ3 GN53304 F99877-1 mgll 1060 106❑ M 0-2D%
Associated Samples:
Hatch GN53179: F996I6-2, F99616-5
Batch GN53304: F99616-3, F99616-4, F99616-6
{•} outside of pc limits
Faa= 1
■ = 36 of 38
N ACCLJTEST.
F99616

MATRIX SPIKE RESULTS SUMMARY
GENERAI. CHEMISTRY
Login Number; F99616
Account: BPAMSS - Atlantic Richfield Company
Project: URSNCM:SIS 24163: 331 Knollwood St, Winston-Salem, NC
cc original Spike MS QC
nalyte Batch I➢ Sample Units Result Amount Result tRec Limits
Alkalinity, Total as CaCO3 GN53179
F99694-1
mg/1
189
_'50
436
98.6
90-113%
Alkalinity, Total as CaCO3 GN53304
F95877-1
mgll
1060
.150
1270
84.0(a)
90-113%
Chloride GP20643/GNS3336
FA40-1
mg/1
11.5
50
62.9
102.0
90-110%
Fluoride GP206431GN53336
FA40-1
mg/1
0.65
2.5
2.B
96.0N[bl
90-1101
Nitrogen, Nitrate GP20643/GN53336
FA40-1
mg1l
0.050 U
2.5
2.5
100.0
90-110%
Nitrogen, Nitrite GP20643/GNS3336
FA40-1
mgli
0.050 U
2.5
2.6
104.0
90-110%
Sulfate GP206431GN53336
FA40-1
mgll
69.3
50
119
99.4
90-110%
Associated Samples:
y
Batch GN53179: F99616-2, F99616-5
G1
Batch GN53304: F99616-3, F99616-4, F99616-6
Batch GP20643: F99616-2, F99616-3, F99616-4, F99616-5, F99616-6
(+} Outside of QC limits
(N) Matrix Spike Rec. outside of QC lions
(a) Spike amount low relative to the sample amount. Refer to
lab
control or spike
blank
for recovery
information.
[bi Spike recovery indicates possible matrix interference.
Page e
■G 37 of 38
ACCIJT�ST.
F99616 "'"'"'"""

MATRIX SPIKE DUPLICATE RESULTS SUMMARY
GENERAL CHEMISTRY
Login Number: F99616
Account: BPAMSS - Atlantic Richfield Company
Project; URSNCM:S/S 24163: 381 Knollwood St, Winston-Salem, NC
QC original Spike MSD QC
Analyte Batch ID Sample Units Result Amount Result RPD Limit
Chloride
GP20643/GN53336
FA40-1
mg/1
Fluoride
GP20643/GN53336
FA40-1
mg/1
Nitrogen, Nitrate
GP20643/GN53336
FA40-1
mq/l
Nitrogen, Nitrite
GF20643/GN53336
FA40-1
mg/1
Sulfate
GP20643/GN53336
FA40-1
mg/l
Associated Samples:
Batch GP20643: F99616-2, F99616-3,
F99616-4, F99616-5, F99616-6
11; Outside of QC limits
(NJ Matrix Spike Rec. outside
of QC limits
fa) Spike recovery indicates
possible matrix interferenc7e.
Page I
11.5
50
63.0
0.2
0.65
2.5
2.7
3.6N(a)
0.050 U
2.5
2.5
O.O
0.050 U
2.5
2.6
0.0
69.3
50
121
1.7
ACCUTEST

e-Hardeopy 2.0
Automated Report
. Southeast
■ Ak.C;C"U_ 'EST
L A 13 0 R A 7 13 R I E 5
Technical Report for
Atlantic Richfield Company
URSNCM:S/S 24163: 381 Knollwood St, Winston-Salem, NC
38436760.104080
Accutest Job Number: FA2146
Sampling Date: 02/26/13
Report to:
U RS Corporation
m artha. [e-mail]
ATTN: Martha Meyers
Total number of pages in report: 35
�s 6� aM nCeaR
� x
Test results contained within this data package meet the requirements
l larry Behzadi- Ph. D.
Laboratory Director
of the National Environmental Laboratory Accreditation Conference
and/or state specific certification programs as applwahle.
Client Service contact: Heather Wandrey 407425-6700
Certifications: FL (E83510), LA (03 05 1 ), KS (E-10327], IA (366), IL (200063), NC (573), NI (IF L002), SC (96038001 ]
DoD ELAP (L-A-B L2229), CA (04226CA), TX (T104704404), AK, AR, GA, KY, MA, NV, OK, UT, VA, WA, WI
This report shall not he reproduced, except in its entirety, without the written approval of Accutest Laboratories.
Test results relate only to samples analyzed.
Southeast - 4405 Vineland Road • suite C-15 • Orlando, FL 32811 - tel: [phone] • fax: [phone] • http.//www.accutest.com
ME 7 of 35
Accutest Laiwratnries is the sole authority for authorizing edits or modifications to this MA.CCiJTEST.
document. Unauthorized modification of this report is strictly prohibited. FA21" ""'�""'

Table of Contents
-I-
Section 1: Sample Summary...................................................................................................
Section 2: Case Narrative/Conformance SummarN..............................................................
Section3: Summary of Hits....................................................................................................
Section4. Sample Results........................................................................................................
4.1: FA2146-1: TRIP BLANK............................................................................................
4.2: FA2146-2: MW-3.........................................................................................................
4.3: FA2146-3: MW-5R......................................................................................................
4.4: FA2146-4: MW-8R......................................................................................................
4.5: FA2146-5: MW-18.......................................................................................................
4.6: FA2146-6: MW-19.......................................................................................................
Section5: Misc. Forms............................................................................................................
5.1: Chain of Custody...........................................................................................................
Section 6: GUMS Volatiles - QC Data Summaries..............................................................
6.1: Method Blank Summary ................................................................................................
6.2: Blank Spike Summary ...................................................................................................
6.3. Matrix Spike/Matrix Spike Duplicate Summary ...........................................................
Section 7: General Chemistry QC Data Summaries..........................................................
7.1: Method Blank and Spike Results Summary..................................................................
7.2: Duplicate Results Summary ..........................................................................................
7.3: Matrix Spike Results Summary .....................................................................................
7.4: Matrix Spike Duplicate Results Summary ....................................................................
Sections:
3
4
6
8
9
10
12
14
16
18
20
21
24
25
27
29
31
32
33
34
35
■ 2 of 35
ACCLJTEST.
FA2U6 ''"""

Accutest La6Link@}u 15:05 13-Mar-2013
Sample Summary
Atlantic Richfield Company
Job No: FA2146
URSNCM:SIS 24163: 381 Knollwood St, Winston-Salem, NC
Project No: 384367% 104080
Sample Collected Matrix Client
Number Date Time By Received Code Type Sample ID
F'A2146-1 02/26/13 00:00 SHJW 02/27/13 AQ Trip Blank Water TRIP BLANK
FA2146-2 02/26/13 09:50 SHJW 02/27/13 AQ Ground Water MW-3
FA2146-3 02/26/13 11:20 SHJW 02/27/13 AQ Ground Water MW-5R
FA2146-4 02/26/13 11:45 SHJW 02/27/13 ACC Ground Water MW-8R
FA2146-5 02/26/13 10:25 SHJW 02/27/13 AQ Ground Water MW-18
FA2146-6 02/26/13 12:05 SHJW 02/27/13 AQ Ground Water MW-19
N
■a 3 of 35
E ACCUTEST.
FA2146 ".... " "

SAMPLE DELIVERY GROUP CASE NARRATIVE
Client: Atlantic Richfield Company Job No: FA2146
Site: URSNCM:S/S 24163: 381 Knollwood St, Winston-Salem, NC Report Date 3/13/2013 3:01:45 PM
5 Samples and 1 Trip Blank were collected on 02/260013 and were reeei► ed at Accutest on 02/27/2013 properly preserved, at 2.8 Deg. C
and intact. These Samples received an Accutest job number of FA2146. A listing of the Laboratory Sample 11). Client Sample m and
dates of collection are presented in the Results Summary Section of this report.
Except as noted below, all method specified calibrations and quality control performance criteria were met for this job. For more
information, please refer to QC summary pages.
Volatiles by GCMS By Method SM 6200B
Matrix: AQ Batch ID: VE781
All samples were analyzed within the recommended method holding time.
All method blanks for this batch meet method specific criteria.
Samples) FA2146-6MS. FA2146-6MS❑ were used as the QC samples indicated.
Matrix Spike 1 Matrix Spike Duplicate Recovery(s) for Toluene are outside control limits. Outside control limits due to high level in
sample relative to spike amount.
FA2146-3: Sample was not preserved to a pH < 2.
FA7146-4: Sample was not preserved to a pH K 2.
Matrix: AQ Batch ID: VF782
All samples were analyzed within the recommended method holding time.
All method blanks for this batch meet method specific criteria.
Sample(s) FA2146-2MS, FA2146-2MSD were used as the QC samples indicated.
Wet Chemistry By Method EPA 3001SW846 9056A
Matrix: AQ Batch ID: GP21111
All samples were prepped nithin the recommended method holding time.
All samples were analyzed within the recommended method holding time.
All method blanks for this batch meet method specific criteria.
Sample(s) FA2319-1 MS. FA2319-1MSD were used as the QC samples for Sulfate.
Wet Chemistry By Method SM19 2320E
Matrix: AQ Batch ID: GN54459
All samples were analyzed within the recommended method holding time.
All method blanks for this batch meet method specific criteria,
Sample(s) FA2134-513UP. FA2134-5MS were used as the QC samples for Alkalinity, Total as CaCO3.
Matrix: AQ Batch ID: GN54503
All samples were analyzed within the recommended method holding time.
All method blanks for this batch meet method specific criteria.
Sample(s) FA2146413UP. FA2146-4MS were used as the QC samples for Alkalinity. Total as CaCO3.
Wednesday, March 13, 2013 Page 1 of 2
4 of 35
ACCIJTEt3T
FA2146

Accutest Laboratories Southeast ALSE] certifies that this report meets the ro'ect re uirements for anal ical data produced for the
t Po p J q 5't
samples as received at ALSE and as slated on the COC. ALSE certifies that the data meets the Data Quality Objectives for precision,
accuracy and completeness as specified in the ALSE Quality Manual except as noted above. This report is to be used in its entirety.
ALSE is not responsible for any assumptions of data quality if partial data packages are used
Narrative prepared by:
Lovelie Metxgar, QA Officer (signature on file)
Wednesday, ,March 13, 2013
Date: March 13, 2013
Page 2 of 2
■ 5 of 35
w ACCUTf=—ST.
FA2146 ......

Summary of Hits Page I of 2
Job Number: FA2146
Account: Atlantic Richfield Company
Project: URSNCM:S/S 24163: 381 Knollwood St. Winston-Salem, NC
Collected: 02126/ 13 0
,ab Sample ID Client Sample ID Result)
Lnalyte Qual RL MDL Units Method
FA2146-1 TRIP BLANK
No hits reported in this sample.
FA2146-2 M W _3
Benzene
0.23 J
0.50
0.10
ug/l
SM 6200B
Methyl Teri Butyl Ether
5.4
0.50
0.10
ug/l
SM 6200B
Alkalinity, Total as CaCO3
300
5.0
0.60
mg/l
SM 19 2320B
Carbon Dioxide
338
5.0
5.0
mg/l
SM19 45000O2D
Sulfate
32.6
2.0
0.60
mg/I
EPA 300/SW846 9056A
FA2146-3 MW-5R
Benzene a
1360
25
5.0
ug/l
SM 6200B
Toluene
3520
50
10
ug/l
SM 6200B
Ethylbenzene a
878
25
5.0
ug/l
SM 6200B
Xylene (total) a
3940
75
11
ug/l
SM 6200B
Methyl Teri Butyl Ether a
1660
25
5.0
ug/l
SM 6200B
Alkalinity. Total as CaCO3
3400
25
13
mg/l
SM19 2320E
Carbon Dioxide
1530
5.0
5.0
mg/l
SM19 45000O2D
Sulfate
8520
400
120
mg/l
EPA 300/SW846 9056A
FA21464 MW-811
Benzene a
7310
250
50
ug/l
SM 6200B
Toluene
30500
500
l00
ug/l
SM 6200B
Ethylbenzene a
2480
250
50
ug/1
SM 6200B
Xylene (total) a
13400
750
110
US/]
SM 6200B
Methyl Teri Butyl Ether a
4530
250
50
ug/l
SM 6200B
Alkalinity, Total as CaCO3
883
25
13
mg/l
SM19 2320E
Carbon Dioxide
590
5.0
5.0
mg/1
SM19 45000O2D
Sulfate
959
20
6.0
mg/l
EPA 3001SW846 9056A
FA2146-5 MW-18
Benzene
2310
50
l0
ug/l
SM 6200B
Toluene
10100
250
50
ug/l
SM 6200B
Ethylbenzene
2970
50
10
ug/l
SM 6200B
Xylene (total)
8690
150
22
ug/l
SM 6200B
Methyl Ten Bury] Ether
1140
50
10
ug/l
SM 6200B
Alkalinity. Total as CaCO3
311
5.0
0.60
mg/l
SM19 2320E
Carbon Dioxide
500
5.0
5.0
mg/l
SM 19 45000O2D
Sulfate
13.8
2.0
0.60
mg/l
EPA 3001SW846 9056A
■.. 6 of 35
ACCUTEST.
FA2146

Summary of Hits Page 2 of
Job Number:
FA2146
Account:
Atlantic Richfield Company
Project:
URSNCM:S/S 24163: 381 Knollwood St. Winston-Salem, NC
Collected.
02/26/ 13
Lab Sample ID Client Sample ID Result/
Analyte Qua[ RL MDL Units Method
FA2146-6 MW-19
Benzene
2210
Toluene
10600
Ethylbenzenc
1110
Xylene (total)
6990
Methyl Tert Buty] Ether
3890
Alkalinity. Total as CaCO3
590
Carbon Dioxide
503
Sulfate
169
[a] Sample was not preserved to a pH < 2.
25
5.0
ug/l
SM 6200B
250
50
ugll
SM 6200B
25
5.0
ug/l
SM 6200B
75
11
ug/I
SM 6200B
250
50
ug/I
SM 6200B
25
13
mg/1
SM 19 2320E
5.0
5.0
mg/l
SM 19 45000O2D
20
6.0
mg/l
EPA 300/SW846 9056A
r
7 of 35
�,gCCI�TEST
FA2145 .••..•,

Section 4
. Southeast
■ ACCUTEST
L A B O R A T O R I E S
Sample Results M
Report of Analysis
Ell 8 of 35
ACCUTEST.
FA2146 .^.e,.ra.�..

Accutesl LabLink;�15;05 13-Mar-2013
Report of Analysis
Client Sample ID: TRIP BLANK
Lab Sample 1D: FA2146-1 Date Sampled: 02/26/13
Matrix: AQ - Trip Blank Water Date Received: 02/27/13
Method: SM 6200B Percent Solids: nla
Project: URSNCM:S/S 24163: 381 Knollwood St. Winston-Salem, NC
PaL�C I of I
File ID DF Analyzed By Prep Date Prep Batch Analytical Batch
Run #1 E022730.13 1 03/06/13 TD n/a nla VE782
Run #2
Purge Volume
Run # 1 10.0 ml
Run #2
Purgeable Aromatics, MTBE
CAS No.
Compound
71-43-2
Benzene
108-88-3
Toluene
100-41-4
Ethylbenzene
1330-20-7
Xylene (total)
1634-044
Methyl Tert Butyl Ether
CAS No.
Surrogate Recoveries
1868-53-7
Dibromofluoromethane
17060-07-0
1.2-D ichloroethane-D4
2037-26-5
Toluene-D8
460-00-4
4-Bromofluorobenzene
Result
RL
MDL
Units Q
ND
0.50
0.10
ugll
ND
0.50
0.10
ug11
ND
0.50
0.10
ug.Il
N❑
1.5
0.22
ug1l
ND
0.50
0.10
ugll
Run# 1 Run# 2 Limits
99% 70-130%
101% 70-130%
101% 70-130%
102% 70-130%
ND Not detected MDL - Method Detection Limit
RL = Reporting Limit
E = Indicates value exceeds calibration range
= indicates an estimated value
B = Indicates analyte found in associated method blank
N - Indicates presumptive evidence of a compound
■' S of 35
O ACCLJ-FEST.
FA214fi • ••�"•"••

Accutest LabLink(gD15:05 13-Mar-2013
Report of Analysis
Client Sample ID: MW-3
Lab Sample ID: FA2146-2 Date Sampled: 02/26/13
Matrix: AQ - Ground Water Date Received: 02/27/13
Method: SM 6200B Percent Solids: n/a
Project: URSNCM:S/S 24163: 381 Knollwood St, Winston-Salem, NC
Page 1 of I
File ID DF Analyzed By Prep Date Prep Batch Analytical Hatch
Run 41 E022723.13 1 03/06/13 TD 11 ,a n/a VE782
Run 42
Purge Volume
Rule _I IPJI ml
Run a 2
Purgeable :aromatics, NITBE
CAS No.
Compound
Result
RL
MDL Units Q
71-43-2
Benzene
0.23
0.50
0.10 ug/1 J
108-88-3
Toluene
ND
0.50
0.10 ug/1
100-41-4
Ethvibenzene
ND
0.50
0.10 ug/I
1330-20-7
Xylene (total)
ND
1.5
0.22 ug/l
1634-04-4
Methyl Tert Butyl Ether
5.4
0.50
0.10 uglI
CAS No.
Surrogate Recoveries
Run# 1
Run#{ 2
Limits
1868-53-7
❑ibromofluoromethane
104%
70-130%
17060-07-0
1.2-D ichloroethane-D4
I Iwo
70-130"/a
2037-26-5
Toluene-D8
99%
70-1300/6
460-004
4-Bromofluorobenzene
103%
70-1300/9
P6
iv
ND = Not detected MDL - Method Detection Limit 1 = Indicates an estimated value
RL = Reporting Limit B = Indicates analyte found in associated method blank
E = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound
Mph 10 of 35
■.caccu-rE-=
FA2146
I I

Accutest Labl-ink0,,15:05 13-Mar-2013
Report of Analysis
'lient Sample ID: MW-3
.ab Sample ID- FA2146-2 Date Sampled: 02/26/13
tatrix: AQ - Ground Water Date Received: 02/27/13
Percent Solids: nla
'roject: URSNCM:S/S 24163: 381 Knollwood St, Winston-Salem, NC
General i hemistr►
A na lyte
Result
Alkalinity, 'Total as CaCO3
300
Carbon Dioxide
338
Sulfate
32.6
Page I of 1
RL
MDL
Units
DF Analyzed By
Method
5.0
0.60
mgll
1 03105/ 13 13:45 AC
5M 19 2320E
5.0
5.0
mg/ l
1 03105/ 13 AC
SM 19 45000O2D
2.0
0.60
mgll
1 03/05/13 11:41 AA
EPA 3001SW&46 9056A
RL = Reporting Limit U = Indicates a result < MDL
MDL = Method Detection Limit B = Indicates a result > = MDL but E RL
=k. 11 of 35
aCCLJTEST
FA2146

Accutest La6Linkfja 15.05 13-Mar-2013
Report of Analysis
'lient Sample ID: MW-5R
,ab Sample ID: FA2146-3 Date Sampled: 02/26/13
latrix: AQ - Ground Water Date Received: 02/27/13
,lethud: SM 6200B Percent Solids: n/a
'roject: URSNCM:S/S 24163: 381 Knollwood St. Winston-Salem. NC
Paee 1 of E
File ID
DI:
Analyzed
By
Prep date
Prep Batch
Analytical Batch
Run 91 ' E022679.13
50
03/05/ 13
TD
n/a
n/a
VE781
Run �t2 E022697.D
100
03/05/13
TD
n/a
n/a
VE781
Purge Volume
Run "1 10.0 mi
1�un �!2 10.0 mi
Purgeabre Aromatics, MTBE
CAS No.
Compound
71-43-2
Benzene
108-88-3
Toluene
100-41-4
Ethylbenzene
1330-20-7
Xylene (total)
1634-04-4
Methyl Tert Buty] Ether
CAS No.
Surrogate Recoveries
1868-53-7
Dibromofluoromethane
17060-07-0
1,2-Dichloroethane-D4
2037-26-5
Toluene-D8
460-004
4-Bromofluorobenzene
(a) Sample was not preserved to a pH < 2.
(b) Result is
from Run# 2
Result
RL
MDL
Units Q
1360
25
5.0
ug/1
3520 h
50
10
ug/l
878
25
5.0
ug/I
3940
75
11
ug/l
166,0
25
5.0
ug/l
Run# 1 Run# 2 Limits
99%
92%
70-130%
107%
89°/a
70-130%
I00%
100%
70-130%
102%
100%
70-130%
ND = Not detected MDL - Method Detection Limit
RL = Reporting Limit
F = Indicates value exceeds calibration range
J = Indicates an estimated value
B = Indicates anaiyte found in associated method blank
N = Indicates presumptive evidence of a compound
a
■E 12 of 35
■ ACCUTEST.
FA2146 "'""".""-

Accutest LabLink a 15:05 I3-Mar-2013
Report of Analysis
Client Sample ID: M W-5R
Lab Sample 1D: FA2146-3 Date Sampled: 02/26/13
Matrix: AQ - Ground Water Date Received: 02/27/13
Percent Solids. nla
Project: URSNCM:SIS 24163: 381 Knollwood St. Winston-Salem, NC
General Chemistry
A nalyte
Alkalinity, Total as CaCO3
Carbon Dioxide
sulfate
I���z�• 1 �,1 1
Result
RL
MDL
Units
DF Analyzed By
Method
3400
25
13
mgli
I 03/07113 11:54 AC
SM19 2320E
1530
5.0
5.0
mgll
1 03/0711311:54AC
SMi945OW02D
8520
400
120
mgll
200 03/05/13 11- 56 AA
EPA 3001SW8469056A
RL = Reporting Limit U = Indicates a result < MDL
MDL = Method Detection Limit B = Indicates a result > = MDL but < Rl.
■L 43 of 35
■.6,ccu�-EST
FA2146

Accutest LabLink(aDl5:05 13-Mar-2013
Report of Analysis Page 1 of l
Client Sample ID:
MW-8R
Lab Sample ID:
FA2146-4
Date Sampled:
02/26/13
Matrix:
AQ - Ground Water
Date Received:
02/27/13
Method:
SM 6200B
Percent Solids:
nla
Project:
URSNCM:SIS 24163: 381 Knollwood 5t, Winston-Salem, NC
File ID
DF Analyzed By
Prep Date Prep Batch Analytical Batch
Run # 1 a E022680, D 500 03/05/ 13 I-D
wa nla
VE781
Run #2 E022693.13 1000 03/05/13 CD
nla nla
VE781
Purge Volume
Run 41 10.0 ml
Run r2 10.0 ml
Purgeable Aromatics, MTBE
CAS No.
Compound
71-43-2
Benzene
108-88-3
Toluene
100-41-4
Ethylbenzene
1330-20-7
Xylene (total)
1634-04-4
Methyl Tert Butyl Ether
CAS No.
Surrogate Recoveries
1868-53-7
Dibromofluoromethane
17060-07-0
1.2- D ichloroet han a-D4
2037-26-5
Toluene-D8
460-00-4
4-Bromofluorobenzene
(a) Sample was not preserved to a pH < 2.
N Result is
from Run# 2
Result
RL
MDL
Units Q
7310
250
50
ugll
30500 b
500
100
ugll
2480
250
50
1jg11
13400
750
110
ugll
4530
250
50
ugll
Run# 1 Run# 2 Limits
100%
99%
70-130%
108%
100%
70-130%
101%
101%
70-130%
103%
103%
70-130%
N❑ = Not detected MDL - Method Detection Limit
RL = Reporting Limit
E = Indicates value exceeds calibration range
J = Indicates an estimated value
B = Indicates analyte found in associated method blank
N = Indicates presumptive evidence of a compound
=is 14 0 35
ACCIJTEST
FA2146 .. 1.. "

Accutest LabLinko15:05 13-Mar-2013
Report of Analysis
.'Bent Sample ID: MW-8R
Alb Sample 1D- FA21464 Date Sampled: 02/26/13
4atrix: AQ - Ground Water irate Received: 02/27/13
Percent Solids: nla
'roject: URSNCM:SIS 24163: 381 Knollwood St. Winston-Salem, NC
General Chemistry
Analyte
Alkalinity, Total as CaCO3
Carbon Dioxide
Sulfate
Result
RL
MDL
Units DF
Analyzed By
Method
883
25
13
mgll 1
03/07/1311:54AC
SM192320B
590
5.0
5.0
mgll 1
03/0711311-54AC
SM1945000O2D
959
20
6.0
mgll 10
03/05/13 12:12 AA
EPA 300/SWU6 9056A
F,L = Reporting Limit
MDL = Method Detection limit
U = Indicates a result < MDL
B = Indicates a result > = MDL but {. RL
El: 15 of 35
�.4�ClJTEST.
FA2146

Accutest LabLink� 15:05 13-Mar-2013
Report of Analysis
Page I of 1
Client Sample ID:
MW-18
Lab Sample 1D:
FA2146-5
Date Sampled:
02/26/13
Matrix:
AQ - Ground Water
Date Received:
02/27/13
Method:
SM 6200B
Percent Solids:
nla
Project:
URSNCM:SJS 24163: 381 Knollwood St,
Winston-Salem. NC
File ID
DF Analyzed By
Prep Date Prep Batch Analytical Batch
Run #1 E022695.D
100 03/05/13 T❑
nla nla
VE781
Run 42 E022683.D 500 03/05/13 TD
nla nla
VE781
Purge Volume
Run #1 10.0 ml
Run 92 10.0 ml
Purgeable Aromatics, MTBE
CAS No.
Compound
Result
RL
MDL Units Q
71-43-2
Benzene
2510
50
l0
ugll
108-88-3
Toluene
10100 a
250
50
ugll
100-41-4
Ethylbenzene
2970
50
10
ugll
1330-20-7
Xylene (total)
8690
150
22
ug/l
1634-04-4
Methyl Tert Butyl Ether
1140
50
10
ugll
CAS No.
Surrogate Recoveries
Run# 1
Run# 2
Limits
1868-53-7
Dibromofluoromethane
103%
106%
70-130%
17060-07-0
1,2-Dichioroethane-D4
114%
113%
70-130%
2037-26-5
Toluene-138
101%
102%
70-130%
460-00-4
4-Bromofluorobenzene
102%
105%
70-130%
(a) Result is From Run# 2
ND = Not detected MDL - Method Detection Limit J = Indicates an estimated value
RL = Reporting Limit B = Indicates analyte found in associated method blank
E = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound
a
Epp. 16 of 35
FA2146 ••..

Accutest Labl_ink(gi15:05 13-Mar-2413
Report of Analysis
Client Sample ID: MW-18
Lab Sample ID: FA2146-5 Date Sampled: 02/26/13
Matrix- AQ - Ground Water Date Received: 02/27/13
Percent Solids: nla
Project: URSNCM:S/S 24163: 381 Knollwood St, Winston-Salem. NC
General Chemistry
Anaiyte
Result
Alkalinity, Total as CaCO3
311
Carbi)n Dioxide
500
Sulfate
13.8
RL = Reporting Limit
MDL = Method Detection Limit
r
Page i of 1
RL
MDL
Units
DF Analyzed By Method
5.0
0.60
mglI
1 03/05/13 13.45 AC SM19 2320B
5.0
5.0
mg/l
1 03/05/ 13 AC SM19 450000ID
2.0
0.60
mgll
1 03/05/13 13:32 AA EPA 3001SW946 9056A
U = Indicates a result < MDL
B = Indicates a result > = MDL but r Rl.
■e 17 of 35
ACCIJTEST.
FA2146

Accutest LabLink(a.-ii5:05 13-Mar-2013
Report of Analysis I A 3
Client Sample 11).
MW-19
Lab Sample 117:
FA2146-6
Date Sampled:
02/26/13
QA,
Matrix:
AQ - Ground Water
Date Received:
02/27/ 13
Method:
SM 6200B
Percent Solids:
nla
Project:
URSNCM:SIS 24163: 381 Knollwood St. Winston-Salem, NC
File I
DF .anal}zed B►
Prep Date Prep Batch
Analytical Batch
Run #1 E022689.13 50 03/05/13 Ta
nla n a
VE781
Run #2 E022684,13 500 03/05/13 T❑
nla n :i
VE781
Purge Volume
Run #1 10.0 ml
Run #2 10.0 m I
Purgeable Aromatics, MTBE
CAS No.
Compound
Result
RL
MDL Units Q
71-43-2
Benzene
2210
25
5.0 ugll
108-88-3
Toluene
1060011
250
50 ugll
100-41-4
Ethylbenxene
lllo
25
5.0 ugll
1330-20-7
Xylene (total)
6990
75
11 ug11
1634-044
Methyl 'Pert Butyl Ether
38901,
250
50 ugll
CAS No.
Surrogate Recoveries
Run# 1
Run# 2
Limits
1868-53-7
Dibromofluoromethane
104%
105%
70-130%
17060-07-0
1.2-Dichloroethane-134
114%
116%
70-130%
2037-26-5
Toluene-138
101%
100%
70-130%
460-004
4-Bromofluorobenzene
103%
105%
70-I30%
a] Result is from Run# 2
ND = Not detected MDL - Method Detection Limit 1 = Indicates an estimated value
RL = Reporting Limit B = Indicates analyte found in associated method blank
E = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound
Mr18 of 35
FR2745 ,••"•••,•-••

1
Accutest LabLinkn,15:05 13-Mar-2013
Report of Analysis
Client Sample ID: MW-19
Lab Sample ID: FA2146-6 Date Sampled: 02/26/13
Matrix: AQ - Ground Water Date Received: 02/27/ 13
Percent Solids: nla
Project: URSNCM:SIS 24163: 381 Knollwood St, Winston-Salem, NC
General Chemistry
Analyte Result
Alkalinity, Total as CaCO3 590
Carbon Dioxide 503
Sulfate 169
RL = Reporting limit
MDL = Method Detection Limit
Page 1 u l I
P.
c"
0
RL
MDL
Units
or Analwed Hv
iNlethod
25
13
mgjl
1 03/07/1311:54AC
SM102320B
5.0
5, 0
rno
1 03/07/ 13 11: 54 AC
5M 19 45000O2D
20
6.0
mgll
10 03/05/13 13-48 AA
EPA 3001SW846 9056A
U = Indicates a result r MDL
B = Indicates a result > = MDL but < RL
0r 19 of 35
ACCLITEST.
FA21" "....I —

Section 5
. Southeast
N ACCLJTEST
L A 61) R A T G R i E 5
Misc. Forms
Custody Documents and Other Forms
Includes the following where applicable:
• Chain of Custody
1
■ 20 of 35
G.ACCUTEST.
FA2146 ""•....,..

FA2146: Chain of Custody
Page 1 of 3
o■ 21 of 35
ACCUTEST.
FA2146 "•••

ACCiTTEST LABORATORIES SAMPLE RECEIPT CONFIRMATION
ACCT"ESi-S JOB NUbIBFR: Z 1' ( /�'2!— WE' 5 PRWECT: 0 `I 11
❑ATUrMM RECE2 4 Y (G� 24:00) hII11BER OF COOLERS RECEIVElk
KETHOD OF DELP4MY: ,�� UPS AACO CVCMS/� CJ T LOUR❑MR GREYHOUM DELIVERY OTHER
AIRHiI.L NUMBF S: _ _ � 6 ,� � A _ a ... _ _
CODLER II4FORMATION
CINTODY SEAL NOT PRESENT OR NOT INTACT
CHAIN OF CUSTODY NOT R EC EP E D (CDC)
ANALYME REQUESTED I9 i NaMAIL OR MISSING
DATES OR TIMES UNCLEAR, OR MISMM
TURE CRITERIA NOT MET
T ICE PRESENT
TRWBL INFORMATION
BLANK FROVD D
TKIP BLANK NOT PROVIDED
tRIPELANLNOTONCOC
1 LAHL INT'ACF
BLANK NOT 5trACT
CHIVED WATER TRIP BLANK
SOLI. TRIP BLANK
MISC, pwQRmATION
NUMBER OF FNCORBS 7 25. 3 " 5AM"
NUMBER OF 5035 FIELD KITS 7
NVMBEX OF LAB FILTERED METALS 7
TEMPERATURE INFORMATION
THPSM ID_ _ CORK. FACTOR fq'�_
T(OIRRECTEI)
SERVEi7 TZleS: 2 •
TEMPS: --z 5
aAMPLIiiNFORMA7'IDN
SAMPLE I ABE5 PRESENT ON ALL BOTTLES
INCORRECT NE3dNER OF CONTADUM 11SM
SAMPLE RECSIVSO IMPROPERLY PRESERVED
ROWMCIENT' VOLUME FOR ANALYSIS
TEW MES ON COC DO NOT MATCH SAMPLE LABEL
S ON COC DO NOT MATCH I.ABE?.
VOC VIALS SAVE HRADSPACE (s[AC'RO BUBBLES)
S RECENEDBUT ANALYW NOT REQUESTED
NO BOTTLES ARCHIVED FOR ANALYSIS REQL W=
UNCLEARFMTE]UNQ OR COMPOSrTM INSTRUCTIONS
SAW -LE C OMAI NBRM RHCXrVED BROKEN
SOLIDS TAR NOT RECIiIVBD
LSUXlkL
FIELD KIT PRO2EItN WITHIN Ii HOUR'S
C HLORTNS PRESENT
{A MAEU TV EPA 600 MMM OR NORTH CALOLFHA OZOANU479 )
52
G
TECHNICIAN SIGN ` 7tL� SIGNATUREJDATE
NF t2ID
reoeipl Confirmation 1 2291 DAs
FA2146: Chain of Custody
Page 2 of 3
I22 of 35
.n,ccuYes-r.
FA214B

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ACCUTEST KIT REQUEST FORM
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Cutlets 8P
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Sample dace: Tel Feksyy X 20 13
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• 19 W�dVOA vialk po- uwwd with HQ to SM QM8 ealyw orwaaar{) m& pa ae,r* and."w=4 ll AVw-OM:r)4 da/a
t la aU.nl Vo,l rigs, I iNPRI5I=.RV11). fir SM (,XW "1"i, cf,�rma 0 tints pm umpk Ens a Two aeti 1f 4,N abw F1f7]: 5)fairyr
• 6(ialichrdca.mpraa,4a(wSri=%befor dedemmmumc4CMmdSO4stwow ([pwatRle]. CWBT [I4d1wAwnf'ZERdw
t Trip hlaeka (water), I per cooler
• LaWly esh and hadle iaheh
• Coaka(e) WKird-A Lbmm rule aed otMl
Red.n >3tipp.sg IandA pR�rieced wid: der l.hratory r.aac s.1 akUms I Pm 000kr}
1-126.6 ant ahwrbeat P-k.08 paten.[
• Tcapc,-arwe bianka Il per woler]
• Fed cral LXFp a au bd6 (I pm to i t}
Ship 5applies To'
(X( Srrahanie Eloped [ ( f ] M-1
URS Cuemratam
INN pmmcia Pv1: I]aivc Suir 400 6M Fwm@w Rmd, Suite 20D
M>o21aL Ncz2m Cllmk,%v. NC 2ii210
PhumNa,0191461-i100 t�vrk )yo. 224}2�4330.— _
PyI�"E INCiAME *14141•n the Drake or tie cooler % racilkate remwiewf frw nor nuilruo
dt Ralsed Tkkm By'. ICI[ COMOMOd B3 :
Dales Date Seat:
'El IWb dW be ko M dr FQLntir Ga.ad— Rcaca Smmd i'.3.�xie —.I—
reoi<en:uaArariv4 kpolea. are mBaehrwk. nano1-10—Wk..are ad.--.IcdKW,Fr.W--
' caa.ma rypea aed nun6ma par amr Purl pea
P�RPvhkpmWCk2A L61 CK, w.S, all K-rl--tl St .All IM dwte h A-Iyl ME.Iy:EW RN—,FiF 24161 A--toi KEI N{yary+ Fmn rot-' A-13j dx
vl erm 13 737 PM
© �c

Section 6
. Southeast
N ACCUTEST
LABORATORIE:-,
GC/MS Volatiles
QC Data Summaries
Includes the following where applicable:
• Method Blank Summaries
• Blank Spike Summaries
• Matrix Spike and Duplicate Summaries
d
24 of 35
FA2146

Method Blank Summary Page I of I
Job Number: FA2146
Account: BPAMSS Atlantic Richficid Company
Project: URSNCM:S/S 24163: 381 1{nollwood St. Winston-Salem, NC
Sample
File ID DF
Analyzed
By
Prep Date
Prep Batch
Analytical Batch
VE781-MB
E022678.13 1
03/05/13
T❑
nla
nla
VE781
The QC reported here applies to the following samples: Method: SM 6200B
FA2146-3, FA21464, FA2146-5. FA2146-6
CAS No.
Compound
Result
RL MDL
Units Q
71-43-2
Benzene
ND
0.50 0.10
ugll
100-41-4
Ethylbenzene
N❑
0.50 0.10
ugll
1634-044
Methyl Teri Butyl Ether
ND
0,50 0.10
ugll
108-88-3
Toluene
N❑
0.50 0.10
ugll
1330-20-7
Xylene (total)
ND
1.5 0.22
ugll
CAS No.
Surrogate Recoveries
Limits
1868-53-7
Dibromofluoromethane
100%
70-130%
17060-07-0
1.2-Dichloroethane-134
104%
70-130%
2037-26-5
Toluene-138
102%
70-130%
460-00-4
4-Bromofluorobenzene
103%
70-130%
■it. 25 of 35
ACCUTEST.
FA2146 .--o-.�o- ��

Method Blank Summary Page I of I
Job Number: FA2146
Account: BPAMSS Atlantic Richfield Company
Project: URSNCM:S/S 24163: 381 Knollwood 5t, Winston-Salem. NC
Sample
File 1D DF
Analyzed
By
Prep Date
Prep Batch
Analytical Batch
VE782-MB
E022715.13 1
03/06/13
TD
nla
nla
VE782
The QC reported here applies to the following samples: Method: SM 6200B
FA2146-1. FA2146-2
CAS No.
Compound
Result
RL MDL
Units Q
7143-2
Benzene
ND
0.50 0.I0
ugll
100414
Ethylbenzene
ND
0.50 0.10
ugll
1634-044
Methyl Tert Butyl Ether
ND
0.50 0.10
Ugll
108-88-3
Toluene
ND
0.50 0.10
ug/l
1330-20-7
Xylene (total)
ND
1.5 0.22
ugll
CAS No.
Surrogate Recoveries
Limits
1868-53-7
Dibromofluoromethane
94%
70-130%
17060-07-0
I.2-Dichloroethane-D4
90%
70-130%
2037-26-5
Toluene-138
101%
70-130%
460-00-4
4-Bromofluorobenzene
101%
70-130%
I
■ 26 of 35
■ s�.ccu�E�T
FA2146 ""'

Blank Spike Summary Page 1 of 1
Job Number: FA2146
Account: BPAMSS Atlantic Richfield Company
Project: URSNCM:SIS 24163: 38I Knollwood St. Winston-Salem. NC
Sample
File 1D
DF
Analyzed
By
Prep Date
Prep Batch
Analytical Hatch
VE781-BS
E-022676.D
1
03/05/13
TD
nla
nla
V1.791
The QC reported here .applies to the folio"ing samples:
FA2146-3, FA2146-4. FA2146-5, FA2146-6
Spike
BSP BSP
CAS No.
Compound
ugll
ugll %
Limits
7143-2
Benzene
10
9.3 93
70-130
100-4I-4
Eth}lbenzene
10
9.3 93
70-130
1634-04-4
Methyl Teri Butyl Ether
10
9.4 94
70-130
108-88-3
Toluene
10
9.2 92
70-130
1330-20-7
Xylene (total)
30
25.7 86
70-130
CAS No.
Surrogate Recoveries
BSP
Limits
1868-53-7
❑ibromofluoromethane
98%
70-130%
17060-07-0
1.2-Dichloroethane-174
98%
70-130%
2037-26-5
Toluene-138
I00%
70-130%
460-004
4-Bromofluorobenzene
101%
70-130%
* = Outside of Control Limits.
Method: SM 6200B
■E 27 of 35
ACCLJTEST-
FA7S46 "•"•• ••

Blank Spike Summary Page I of']
Job Number: FA2146
Account: BPAMSS Atlantic Richfield Company
Project: URSNCM:S/S 24163: 381 Knollwood St. Winston-Salem, NC
Sample
File I DF
Analyzed
By
Prep Date
Prep Batch
Analytical Batch
VE782-BS
E022714.D 1
03/06/13
TD
n a
n a
VE782
The QC reported here applies to the following samples:
FA2146-I. FA2146-2
Spike
BSP BSP
CAS No.
Compound
ugll
ugll
%
Limits
7143-2
Benzene
10
9.6
96
70-130
100-41-4
Ethylbenzene
10
9.2
92
70-130
1634-04-4
Methyl Tert Butyl Ether
10
9.1
91
70-130
108-88-3
Toluene
10
9.4
94
70-130
1330-20-7
Xylene (total)
30
25.0 83
70-130
CAS No.
Surrogate Recoveries
BSP
Limits
1868-53-7
❑ibromofluoromethane
92%
70-130%
17060-07-0
1.2-Dichloroethane-D4
89%
70-130%
2037-26-5
Toluene-138
101%
70-130%
460-00-4
4-Bro moll uo ro benzene
101%
70-130%
* = Outside of Control limits.
Method: SM 6200B
I
28 of 35
ACCLJT�B�
FA2146 "" ""

Matrix Spike/Matrix Spike Duplicate Summary Page i of 1
Job Number: FA2146
Account: BPAMSS Atlantic Richfield Company
Project: URSNCM:S/S 24163: 381 Knollwood St. Winston-Salem, NC
Sample
File ID
DF
Analyzed
By
Prep Date
Prep Batch
Analytical Batch
FA2146-6MS
E022690.13
50
03/05/13
TD
nla
nla
VE781
FA2146-6MSD
E022691.13
50
03/05/13
TD
nla
nla
VE781
FA2146-6
E022689.13
50
03/05/13
TD
nla
nla
VE781
FA2146-6
E022684. ❑
500
03/05/13
TD
nla
nla
VE781
The QC reported here applies to the following samples: Method. SM 6200B
FA2146-3, FA2146-4. FA2146-5, FA2146-6
FA2146-6
Spike
MS MS
MSD
MSD
Limits
CAS No.
Compound
ugll Q
ugll
ug/l %
ugll
% RPD
Rec/RPD
71-43-2
Benzene
2210
500
2670 92
2610
80 2
70-130120
100-41-4
Ethylbenaene
lli0
500
1620 102
1580
94 3
70-130120
1634-04-4
Methyl Tert ButyI Ether
3890 a
500
4460 114
4360
94 2
70-130120
108-88-3
Toluene
10600a
500
10500 -20*b
10300
-60* b 2
70-130120
1330-20-7
Xylene (total)
6990
1500
8190 80
7900
61* b 4
70-130120
CAS No.
Surrogate Recoveries
MS
MSD
FA2146-6
FA2146-6 Limits
1868-53-7
❑ibromofluoromethane
104%
101%
104%
105%
70-130°%
17060-07-0
1.2-Dichloroethane-D4
114%
108%
114%
116%
70-130%
2037-26-5
Toluene-D8
98%
100%
101%
100%
70-130%
460-00-4
4-Bromofluorobenxene
101%
103%
103%
105%
70-130%
(a) Result is from Run 42.
(b) Outside
control limits due to high level in sample relative to spike amount.
* = Outside of Control Limits.
w
eA
IN 29 of 35
U ACCUTEST.
FA2146

Matrix Spike/Matrix Spike Duplicate Summary Page 1 of 1
Job Number: FA2146
Account: BPAMSS Atlantic Richfield Company
Project: URSNCM:SIS 24163: 381 1{nollwood St, Winston-Salem, NC
Sample
File I DF
Analyzed
By
Prep Date
Prep Batch
Analytical Batch
FA2146-2MS
E022725.13 1
03/06/13
TD
nla
nla
VE782
FA2146-2MSD
E022726.D 1
03/06/13
TD
nla
nla
VE782
FA2146-2
E022723.13 1
03/06/13
TD
nla
nla
VE782
The QC reported here applies to the following samples: Method: SM 6200B
FA2146-1. FA2146-2
FA2146-2
Spike
MS
MS
MSD
MSD
Limits
CAS No.
Compound
ugll Q
ugll
ug/l
%
ugll
%
RPD
Rec/RPD
71-43-2
Benzene
0.23 .I
10
8.9
87
8.7
85
2
70-130120
100-41-4
Ethylbenzene
ND
10
8.7
87
8.6
86
1
70-130120
1634-04-4
Methyl Tert Butyl Ether
5.4
10
14.3
89
14.0
86
2
70-130120
108-88-3
Toluene
N❑
10
8.2
82
8.1
81
1
70-130120
1330-20-7
Xylene (total)
ND
30
24.8
83
23.9
80
4
70-130120
CAS No.
Surrogate Recoveries
MS
MSD
FA2146-2
Limits
1868-53-7
Dibromofluorometha.ne
105%
104%
104%
70-130%
17060-07-0
1,2-Dichloroethane-D4
110%
108%
110%
70-130%
2037-26-5
Toluene-D8
98%
99%
99%
70-130%
460-00-4
4-Bromofluorobenzene
103%
100%
103%
70-130%
* = Outside of Control Limits.
I
■:. 30 of 35
ACCUTE:ST.
FA2146 "'.""1, '..

Section 7
Southeast
ACCLJTE�T
LAD0RA-r0Ft1E5
General Chemistry
QC Data Summaries N
Includes the following where applicable:
• Method Blank and Blank Spike Summaries
• Duplicate Summarises
• Matrix Spike Summaries
■ 31 of 35
N ACCUTEST.
FA2146

METHOD BLANK AND SPIKE RESULTS SUY14A.RY
GENERAL CHEMISTRY
Login Number: FA2146
Account: SPAMSS - Atlantic Richfield Company
Project: URSNCM:S/S 24163: 301 Knailwood St, Winston-Salem, NC
M8 Spike BSP BSP QC
Analyte Hatch ID RL Result Units Amount Result %Recov Limits
Alkalinity, Total as CaCO3 GN54459
5.0
0.70
Alkalinity, Total as CaCO3 GN54503
25
0.0
Chloride
GP211111GN54476
2.0
0.0
Fluoride
GP211I1/GN54476
0.20
0..0
Nitrogen, Nitrate
GP21111/GN54476
0.10
0.0
Nitrogen, Nitrite
GP2121i1GN54476
0.10
0.0
Sulfate
GP21111/GN54476
2.0
0.0
Associated Samples:
Batch GN54459: FA2146-2,
FA2146-5
Hatch GN54503: FA2146-3,
FA2146-4, FA2146-6
Hatch GP21111: FA2146-2,
FA2146-3, FA2146-4, FA2146-5,
FA2146-6
;•} Outside of QC limits
Page ]
mg/1
250
f49
mg/1
250
253
mg/1
5o
50.5
mg/1
2.5
2.61
mg/1
2.5
2.48
mg/1
2.5
2.52
mgll
50
51.8
99.1
90-113%
101.0
90-113%
101.0
90-110%
104.4
90-1104
99.2
90-110%
100.8
90-110%
103.6
90-110%
J
V1
1
■■ 32 of 35
ACCUTEa^T.
FA2146

DUPLICATE RESULTS SUMMARY
GENERAL CHEMISTRY
Login Number: FA2146
Account: BPAMSS - Atlantic Richfield Company
Project: URSNCM;S/S 24163: 3B1 Knolluaod St, Winston-Salem, NC
0C Original Dup 0C
Analyte Batch ID Sample Units Result Result RPD Limits
Alkalinity, Total as CaCO3 GN54459 FA2134-5 mgll 0.90 1.0 10.5 0-30%
Alkalinity, 'total as CaCO3 GN54503 FA2146-4 rn911 6A3 BBB 0.6 0-1-0%
Associated Samples:
Batch GN54459: FA2146-2, FA2_146-5
Batch GN54503; FA:.146-3, FA2146-4, FA2146-6
111 Outside of 0C limits
Page 1
V
N
N
■■ 33 of 35
ACCL -rEST.
FA2146

MATRIX SPIKE RESULTS SUMMARY
GENERAL CHEMISTRY
Login Number: FA2146
Account: SPAMSS - Atlantic Richfield Company
Project: URSNCM:SIS 24163: 3Bi Knolluood St, Winston-Salem, NC
QC Original Spike MS QC
Analyte Batch ID Sample Units Result Amount Result %Rec Limits
Alkalinity, Total as CaCO3 GN54459 FA2134-5 mg/1 0.90 250 252 100.0 90-113%
Alkalinity, Total as CaCO3 GN54503 FA2146-4 mg/1 883 250 1160 109.0 90-113%
Chloride GP21I111GN54476 PA2319-1 mg/1 2.6 50 51.4 97.6 90-110%
Fluoride GP21111/GN54476 FA2319-1 mgll 0.0 2.5 2.2 88.ON(al 9n-lln4
Nitrogen, Nitrate GP21III1GN54476 FA2319-1 mg/l 1.1 2.5 3.5 96.0 90-ilo%
Nitrogen, Nitrite GP21121IGN54476 FA2319-1 mg/1 0.0 2.5 2.4 96.0 90-110%
Sulfate GP2i11l/GN54476 FA2319-1 mg/1 0.0 50 47.1 94.2 40-110t
Associated Samples: V
Batch GN54459: FA2146-2, FA2146-5
Batch GN54503: FA2146-3, FA2146-4, FA2146-6
Hatch GP21111: FA2146-2, FA2146-3, FA2146-4, FA2146-5, FA2i46-6
(1) Outside of QC limits
M Matrix Spike Rec. outside of QC limits
ia) Spike recovery indicates possible matrix interference.
Page
34 of 35
ACCU7"EST.
FA2146 ...•••••

MATRIX SPIKE DUPLICATE RESULT'S SUMMARY
GENERAL CHEMISTRY
Login Number. EA2146
Account: BPAMSS - Atlantic Richfield Company
Project: URSNCM:S/S 24163: 391 Knollwood St, iiinston-Salem, NC
QC Original Spike MSD 4c
Analyte Batch ID Sample Units Result Amount Result RPD Lim-:
Chloride
GP21I111GN54476
FA2319-1
mgll
Fluoride
GP211il/GN54416
FA2319-1
mgll
Nitrogen, Nitrate
GP21I111GN54476
FAw319-1
mg/l
Nitrogen, Nitrite
GP211111GN54476
FA:319-1
mgll
Sulfate
GP21lll1GN54476
FA2319-1
mg/1
Associated Sample=:
Batch GP21111: FA2146-2,
FA2146-3, FA2146-4, FA2146-5, FA2146-6
f'1 Outside of SIC limits
W) Matrix Spike Rec, outside of QC limits
Sal Spike recovery indicates possibie matrix interference..
2.6
50
51.3
0.2
0.0
2.5
2.2
0.ONIa)
1.1
2.5
3.5
0.0
0.0
11.5
2.4
0.0
0.0
50
47.0
0.2
V
Elk 35 of 35
wACCIJTeST
FA2146

APPENDIX E
ASP Injection Performance Monitoring Parameter
Time -Trend Graphs

Benzene Concentrations over Time
9000
8000
7000
J
6000
tw
a
5000
L
41
V
C
u 4000
2000
1000
0
Date
,�til til ti/
MW-3 (control)
MW-SR
MW-8R
MW-18
MW-19
- . GCL
E •I:PS+WnrkmK f7wvnreawBPBP 23161�Sn -AnmW Wu Rgwn 4 Apynd— and Graph—,

pH over Time
15.0 MW-3 (control)
Injection Event
14.0 M W-S R
r
M W-8R
12.0
M W-18
10.0 M W -19
8.0
2
Q.
6.0
4.0
2.0
0.0
°y'y °tiw °yti °,y'l. °titi Q>yti °�ti �ryti °titi °titi o>yti °yti otiti oti� 4ryti °ti3 °rya
Date
P IARP 5etlsWR74163, VK- WS. 311 K.Wl—d Nq etl 5 0 Deim—Mcrt5 1 Dra9 - lFkcnm Ddncr2hks%4 291 Stmk-An l Data RgM%T4KWTahks- AppyNKz. and Graphs Ky i

Sodium Persulfate Concentrations over Time
40 MW-3 (control)
Injection Event
MW-SR
35
MW-8R
.230
MW-18
04
c
O
t 25 MW-19
C
0J
C
d
U zo
a,
L
� I5
V
vl 10
5
ff
o>�ti °tip o�� °yti
Date
P 1$PprpxVWN,J Ihl. CK. W-5. 191 Kmllussad 5lnxil5 n Ilclnxra6les'•5 I MA - 1.1— Ud—rddes'.i Nl Scmi-Annul DU13 Hcpo ' T'3blN.TaMo. Append— and GlJph? m3

Sulfate over Time
20000
MW-3 (control)
Injection Event
18000
M W-SR
16000
MW-811
14000
MW-18
M
W-19
12000
tkQ
Q1
10000
w
V)
8000
6000
4000
2000
0
°titi
°titi atiti Qtiti gtiti gtiti °titi °titi °�ti °titi atiti °titi °yti °titi °titi °�3 °ti3
Date
E'%UPMWd&ft DWdM 1W5? BP 24 1 i.i•Scmi-Anmul W1a Rcp %4 ri Semi-AP—L MN Rq"ITa6WTabk5. Appc KU—. and Ckppha n I

Carbon Dioxide over Time
25000
Injection Event
MW-3 (control)
MW-5R
MW-8R
20000
MW-18
MW-19
E
15000
aV
x
0
C
c
0
J2
10000
u
5000
0
Oay'�' �,yti Oa4ti'
Oyu Qtiti O,ti O,yti 0titi a+y'� �,y'b oyti �ti'L Otiti O.�ti �ti'L py"� Qay�]
�'aL ❑�ti �'ti
1'ti g'ti ��'L �''1. ��'1. 0''L ��'1. ���. a�'L ��'L O�ti ��ti ��'k �''L
Date
I i HS k nrAmR bacvmenls•i11a$P 2411-7 Semi -Annual Dili Reproµ bi Se Annul Ua1a "n%TaWea%Tabka. Appm6m a x linpb rn 1

Specific Conductivity over Time
250----
MW-3 (control)
Injection Event
MW-5R
200
MW-8R
---
MW-18
_
sn
�
I50
MW-19
A
2
u
M
C
O
V
100
u
'J
d
Q
LA
50
0
°titi
ti
°''� vti� oti� °''� o'�� °tip oti� Z7 gtiti °tit'
°�ti ����ti ��ti o�ti o�� ti�
q,�°�ti �o'�ti�ti ��'3a�ti ��,�,��ti y'���ti
`''�,���
Date
P IBKPFD)W.,N"4 Inv. CK. W-S. 3xl K wlln nud Suomi a dcln crabks:t I Ihafl • nrrrim th nernbles'4 2r1 Sm.-A.—I 13w. P•V. lTaM.ATabl.. ApFnd,ce .and Graphs —