WS-88422_95262_CA_SAR_20140326

March 26, 2014
Mr. Gene Mao, P.G.
Environmental Health Division
Guilford County Department of Public Health
1203 Maple Street
Greensboro, North Carolina 27405
Re: Additional Sampling Results - January 1, 2013 Petroleum Release
Colonial Pipeline Company - Greensboro Junction Facility
Greensboro, North Carolina
Dear Mr. Mao:
On January 1, 2013, Colonial Pipeline Company (CPC) discovered a petroleum release in the
manifold area on the gasoline side of the CPC Greensboro Junction Facility (Facility) located at
411 Gallimore Dairy Road, Greensboro, NC 27409 (Figure 1). Petroleum was released due to a
failure of the Line 03 gas can pump causing product to overflow its concrete vault, flow
downgradient through a drainage line and into an onsite secondary retention pond.
Subcontractors removed approximately 71.5 tons of impacted soil and gravel in an area
measuring 60 feet long by 50 feet wide over the course of two weeks (January 2 to 16, 2013).
On January 11, 2013, Apex Companies, LLC (Apex) collected 11 grab soil samples from the
shallow excavation and the trench excavation. Results of the January 11, 2013 sampling event
were summarized in a letter report to the Guilford County Department of Public Health (GCPH)
dated June 11, 2013. In a response letter dated November 18, 2013, North Carolina
Department of Environment and Natural Resources (NCDENR) recommended that an additional
soil sample from 2 feet below the ground surface be collected in the vicinity of boring location S-
4. Apex personnel collected a soil sample from this location on February 11, 2014. The
sampling methods and analytical results for this additional sample are summarized below.
On February 11, 2014, Apex collected one grab soil sample (S-4 (2')) within the former shallow
excavation area. The sample was collected from a depth of approximately two feet below land
surface utilizing a stainless steel hand auger. The soil sample was stored and shipped on ice to
Pace Analytical Services, Inc, in Huntersville, NC for analysis of Total Petroleum Hydrocarbons
— Diesel Range Organics (TPH-DRO) and TPH-gasoline range organics (GRO). Copies of the
laboratory analysis and chain of custody are attached.
Diesel range components were detected in the soil sample at a concentration of 8.6 milligrams
per kilogram (mg/kg). This concentration is below the NCDENR action level of 10 mg/kg. The
concentration of gasoline range organics in sample S-4 (2') was below laboratory practical
quantitation limits. The sampling location and laboratory results are shown in Figure 2.
As mentioned in Apex's letter report to Guilford County Department of Public Health dated June
11, 2013, residual soil contamination remains in the vicinity of the manifold area. However,
removal of additional soil is technically impracticable due to above and below ground
equipment, piping, and structural supports. CPC requests that no further action be taken for this
Apex Companies, LLC • 136 Fairview Road, Suite 125 • Mooresville, NC 28117 • T 704.799.6390 • F 704.799.6395 • apexcos.com

Mr. Gene Mao, Guilford County Department of Public Health
Greensboro Junction Manifold Release Report
March 26, 2014
Pape 2
release based on the limited access to the remaining contaminated soil and the continued use
of the site as a petroleum transport facility.
Should you have any questions regarding this, please do not hesitate to contact me at
[phone], ext.21.
Sincerely,
Apex Companies, LLC
Tim Besier
Assistant Project Manager
Attachments: Figures, Laboratory Data
cc: Carin Kromm — NCDENR
Faron Leigh - CPC
Apex Companies, LLC
SEAL
Kathleen A Roush, P.G., RSW 135
Division Manager
°aa�aaisa°K -0
A
APEX

ATTACHMENTS
A
APEX

w � �
!A
fiJr1 rr r . 4 r
F
ki - NORTH StATION ARE
r
�. 'UPPER
A
14
r q ' JET FUEL AREA
LOWER POND
OR `,UDGE PIT
0
Aim
o !
r �Fr
FIGURE 1
SITE PLAN
Greensboro Junction
Colonial Pipeline Company
Greensboro, North Carolina
LEGEND:
Property Line
APEX COMPANIES, LLC.
MOORESVILLE, NORTH CAROLINA
'J Date: June 01, 2012 15:47
Project No: CPC GBJ
,"t,
File: R PROJECTS\Colonial Pipeline\GBJ\GW Sampling & Reporting\Figures\GBJ Site-GW-LNAPL.viz

Former Shallow
Excavation Area
50 ftw
APCx
1)
TPH-DRO 8.6mg/kg
TPH-CIAO BQL
FormerTrench
Excavation Area
Soil Sample Location
BQL = Below Laboratory Practical
Quantita#ion Limit
FIGURE 2
Sample Location and Laboratory Analytical Results
Greensboro Junction Facility
Greensboro, North Carolina
PREPARED FOR: DATE: 3/21/14
Colonial Pipeline Company PROJ. #: CPC13001.002

aceAnalytical
—pacelabs.com
Pace Analytical Services, Inc.
9800 Kincey Ave. Suite 100
Huntersville, INC 28078
[phone]
February 20, 2014
Kathy Roush
Apex Compaines
136 Fairview Road
Suite 125
Mooresville, NC 28117
RE: Project: CPC OB5-CPC13001.002
Pace Project No.: 92189472
Dear Kathy Roush:
Enclosed are the analytical results for sample(s) received by the laboratory on February 11, 2014.
The results relate only to the samples included in this report. Results reported herein conform to the
most current TN standards and the laboratory's Quality Assurance Manual, where applicable, unless
otherwise noted in the body of the report.
Analyses were performed at the Pace Analytical Services location indicated on the sample analyte
page for analysis unless otherwise footnoted.
If you have any questions concerning this report, please feel free to contact me.
Sincerely,
Kevin Herring
[e-mail]
Project Manager
Enclosures
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, Inc..
Page 1 of 13

aceAnalytical
—pacelabs.com
Pace Analytical Services, Inc.
9800 Kincey Ave. Suite 100
Huntersville, INC 28078
[phone]
CERTIFICATIONS
Project: CPC 0135-CPC13001.002
Pace Project No.: 92189472
Charlotte Certification IDs
9800 Kincey Ave. Ste 100, Huntersville, NC 28078
Florida/NELAP Certification #: E87627
North Carolina Drinking Water Certification #: 37706
Kentucky UST Certification #: 84
North Carolina Field Services Certification #: 5342
West Virginia Certification #: 357
North Carolina Wastewater Certification #: 12
Virginia/VELAP Certification #: 460221
South Carolina Certification #: 99006001
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, Inc.. Page 2 of 13

aceAnalytical
—pacelabs.com
Pace Analytical Services, Inc.
9800 Kincey Ave. Suite 100
Huntersville, INC 28078
[phone]
SAMPLE ANALYTE COUNT
Project:
Pace Project No.:
CPC OB5-CPC13001.002
92189472
Analytes
Lab ID
Sample ID
Method
Analysts
Reported
Laboratory
92189472001
S-4 (2')
EPA 8015 Modified
NU1
2
PASI-C
EPA 8015 Modified
NU1
2
PASI-C
EPA 8015 Modified
GAW
2
PASI-C
ASTM D2974-87
KDF
1
PASI-C
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, Inc.. Page 3 of 13

aceAnalytical
—pacelabs.com
Pace Analytical Services, Inc.
9800 Kincey Ave. Suite 100
Huntersville, INC 28078
[phone]
Project: CPC 0135-CPC13001.002
Pace Project No.: 92189472
Lab Sample ID
Method
92189472001
EPA 8015 Modified
ASTM D2974-87
Client Sample ID
Parameters
S-4 (2')
Diesel Components
Percent Moisture
SUMMARY OF DETECTION
Result Units
8.6 mg/kg
16.6 %
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, Inc..
Report Limit Analyzed
6.0 02/15/1414:45
0.10 02/17/1410:02
Qualifiers
Page 4 of 13

aceAnalytical
—pacelabs.com
Pace Analytical Services, Inc.
9800 Kincey Ave. Suite 100
Huntersville, INC 28078
[phone]
ANALYTICAL RESULTS
Project: CPC 0135-CPC13001.002
Pace Project No.: 92189472
Sample: S-4 (2')
Lab ID: 92189472001 Collected: 02/11/14 11:30
Received: 02/11/14 16:42 Matrix: Solid
Results reported on a "dry -weight"
basis
Parameters
Results Units Report Limit DF
Prepared
Analyzed
CAS No. Qual
8015 GCS THC-Diesel
Analytical Method: EPA 8015 Modified Preparation Method: EPA 3546
Diesel Components
8.6 mg/kg 6.0 1
02/11/14 19:17
02/15/14 14:45
68334-30-5
Surrogates
n-Pentacosane (S)
92 % 41-119 1
02/11/14 19:17
02/15/14 14:45
629-99-2
8015 GCS THC-ORO
Analytical Method: EPA 8015 Modified Preparation Method: EPA 3546
Oil Range Organics
ND mg/kg 18.0 1
02/18/14 16:14
02/19/14 21:07
Surrogates
n-Pentacosane (S)
71 % 41-119 1
02/18/14 16:14
02/19/14 21:07
629-99-2
Gasoline Range Organics
Analytical Method: EPA 8015 Modified Preparation Method: EPA 5035A/5030B
Gasoline Range Organics
ND mg/kg 7.2 1
02/14/14 02:05
02/14/14 19:17
8006-61-9 P4
Surrogates
4-Bromofluorobenzene (S)
95 % 70-167 1
02/14/14 02:05
02/14/14 19:17
460-00-4
Percent Moisture
Analytical Method: ASTM D2974-87
Percent Moisture
16.6 % 0.10 1
02/17/14 10:02
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
Date: 02/20/2014 03:27 PM without the written consent of Pace Analytical Services, Inc.. Page 5 of 13

aceAnalytical
—pacelabs.com
Pace Analytical Services, Inc.
9800 Kincey Ave. Suite 100
Huntersville, INC 28078
[phone]
QUALITY CONTROL DATA
Project: CPC 0135-CPC13001.002
Pace Project No.: 92189472
QC Batch: GCV/7809 Analysis Method: EPA 8015 Modified
QC Batch Method: EPA 5035A/5030B Analysis Description: Gasoline Range Organics
Associated Lab Samples: 92189472001
METHOD BLANK: 1137844
Associated Lab Samples: 92189472001
Parameter Units
Gasoline Range Organics mg/kg
4-Bromofluorobenzene (S) %
Matrix: Solid
Blank Reporting
Result Limit Analyzed Qualifiers
ND 6.0 02/14/1416:35
93 70-167 02/14/1416:35
LABORATORY CONTROL SAMPLE: 1137845
Spike LCS LCS % Rec
Parameter Units Conc. Result % Rec Limits Qualifiers
Gasoline Range Organics mg/kg 49.7 53.0 107 70-165
4-Bromofluorobenzene (S) % 93 70-167
MATRIX SPIKE & MATRIX SPIKE DUPLICATE: 1137846
1137847
MS
MSD
92189456001 Spike
Spike
MS
MSD MS MSD % Rec
Parameter Units Result Conc.
Conc.
Result
Result % Rec % Rec Limits RPD Qual
Gasoline Range Organics mg/kg ND 45.3
45.3
51.8
51.1 114 113 47-187 1
4-Bromofluorobenzene (S) %
96 96 70-167
Date: 02/20/2014 03:27 PM
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, Inc..
Page 6 of 13

aceAnalytical
—pacelabs.com
Pace Analytical Services, Inc.
9800 Kincey Ave. Suite 100
Huntersville, INC 28078
[phone]
QUALITY CONTROL DATA
Project: CPC 0135-CPC13001.002
Pace Project No.: 92189472
QC Batch: OEXT/25896 Analysis Method: EPA 8015 Modified
QC Batch Method: EPA 3546 Analysis Description: 8015 Solid GCSV
Associated Lab Samples: 92189472001
METHOD BLANK: 1137121
Associated Lab Samples: 92189472001
Parameter Units
Diesel Components mg/kg
n-Pentacosane (S) %
Matrix: Solid
Blank Reporting
Result Limit Analyzed Qualifiers
ND 5.0 02/15/1414:22
70 41-119 02/15/1414:22
LABORATORY CONTROL SAMPLE: 1137122
Spike LCS LCS % Rec
Parameter Units Conc. Result % Rec Limits Qualifiers
Diesel Components mg/kg 66.7 54.7 82 49-113
n-Pentacosane(S) % 94 41-119
MATRIX SPIKE & MATRIX SPIKE DUPLICATE: 1137123
1137124
MS
MSD
92189456001 Spike
Spike
MS
MSD MS MSD % Rec
Parameter Units Result Conc.
Conc.
Result
Result % Rec % Rec Limits RPD Qual
Diesel Components mg/kg 14.5 81.9
81.9
68.5
60.1 66 56 10-146 13
n-Pentacosane(S) %
86 71 41-119
Date: 02/20/2014 03:27 PM
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, Inc..
Page 7 of 13

aceAnalytical
—pacelabs.com
Pace Analytical Services, Inc.
9800 Kincey Ave. Suite 100
Huntersville, INC 28078
[phone]
QUALITY CONTROL DATA
Project: CPC OB5-CPC13001.002
Pace Project No.: 92189472
QC Batch: OEXT/25973 Analysis Method: EPA 8015 Modified
QC Batch Method: EPA 3546 Analysis Description: 8015 Solid GCSV ORO
Associated Lab Samples: 92189472001
METHOD BLANK: 1139600
Associated Lab Samples: 92189472001
Parameter Units
Oil Range Organics mg/kg
n-Pentacosane (S) %
Matrix: Solid
Blank Reporting
Result Limit Analyzed Qualifiers
ND 15.0 02/19/1419:10
80 41-119 02/19/1419:10
LABORATORY CONTROL SAMPLE & LCSD: 1139601
1139602
Spike LCS LCSD
LCS LCSD
% Rec Max
Parameter Units
Conc. Result Result
% Rec % Rec
Limits RPD RPD Qualifiers
Oil Range Organics mg/kg
83.3 70.9 83.9
85 101
50-150 17 30
n-Pentacosane(S) %
75 78
41-119
Date: 02/20/2014 03:27 PM
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, Inc..
Page 8 of 13

aceAnalytical
—pacelabs.com
Pace Analytical Services, Inc.
9800 Kincey Ave. Suite 100
Huntersville, INC 28078
[phone]
QUALITY CONTROL DATA
Project: CPC 0135-CPC13001.002
Pace Project No.: 92189472
QC Batch: PMST/6245 Analysis Method: ASTM D2974-87
QC Batch Method: ASTM D2974-87 Analysis Description: Dry Weight/Percent Moisture
Associated Lab Samples: 92189472001
SAMPLE DUPLICATE: 1137548
92189335006 Dup
Parameter Units Result Result RPD Qualifiers
Percent Moisture % 13.2 14.3 8
SAMPLE DUPLICATE: 1137549
Parameter
Percent Moisture
Date: 02/20/2014 03:27 PM
92189438002 Dup
Units Result Result
ND ND
RPD Qualifiers
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, Inc..
Page 9 of 13

aceAnalytical
—pacelabs.com
Pace Analytical Services, Inc.
9800 Kincey Ave. Suite 100
Huntersville, INC 28078
[phone]
QUALIFIERS
Project: CPC 0135-CPC13001.002
Pace Project No.: 92189472
DEFINITIONS
DF - Dilution Factor, if reported, represents the factor applied to the reported data due to changes in sample preparation, dilution of
the sample aliquot, or moisture content.
ND - Not Detected at or above adjusted reporting limit.
J - Estimated concentration above the adjusted method detection limit and below the adjusted reporting limit.
MDL -Adjusted Method Detection Limit.
PRL - Pace Reporting Limit.
RL - Reporting Limit.
S - Surrogate
1,2-Diphenylhydrazine (8270 listed analyte) decomposes toAzobenzene.
Consistent with EPA guidelines, unrounded data are displayed and have been used to calculate % recovery and RPD values.
LCS(D) - Laboratory Control Sample (Duplicate)
MS(D) - Matrix Spike (Duplicate)
DUP - Sample Duplicate
RPD - Relative Percent Difference
INC - Not Calculable.
SG - Silica Gel - Clean -Up
U - Indicates the compound was analyzed for, but not detected.
N-Nitrosodiphenylamine decomposes and cannot be separated from Diphenylamine using Method 8270. The result reported for
each analyte is a combined concentration.
Acid preservation may not be appropriate for 2-Chloroethylvinyl ether, Styrene, and Vinyl chloride.
Pace Analytical is TNI accredited. Contact your Pace PM for the current list of accredited analytes.
TNI -The NELAC Institute.
LABORATORIES
PASI-C Pace Analytical Services - Charlotte
ANALYTE QUALIFIERS
P4 Sample field preservation does not meet EPA or method recommendations for this analysis.
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
Date: 02/20/2014 03:27 PM without the written consent of Pace Analytical Services, Inc.. Page 10 of 13

aceAnalytical
—pacelabs.com
Pace Analytical Services, Inc.
9800 Kincey Ave. Suite 100
Huntersville, INC 28078
[phone]
QUALITY CONTROL DATA CROSS REFERENCE TABLE
Project:
Pace Project No.:
CPC OB5-CPC13001.002
92189472
Analytical
Lab ID
Sample ID
QC Batch Method
QC Batch
Analytical Method
Batch
92189472001
S-4 (2')
EPA 3546
OEXT/25896
EPA 8015 Modified
GCSV/16665
92189472001
S-4 (2')
EPA 3546
OEXT/25973
EPA 8015 Modified
GCSV/16711
92189472001
S-4 (2')
EPA 5035A/5030B
GCV/7809
EPA 8015 Modified
GCV/7813
92189472001
S-4 (2')
ASTM D2974-87
PMST/6245
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
Date: 02/20/2014 03:27 PM without the written consent of Pace Analytical Services, Inc.. Page 11 of 13

L-Vl U111G1 IL IYQI I1G.
areAnalvPica� Sample Condition Upon Receipt SCUR Page 1 of 2
Document Number: Issuing Authority:
F-CHR-CS-03-rev.13 Pace Huntersville Quality Office
Client Name: -A'
—�
Courier: ❑ Fed Ex ❑ UPS❑ USPS❑ lie ❑ Commercial❑ Pace Other Optional
-- �
Custody Seal on Cooler/Box Present: ❑ yes Eln Seals intact: Elyes ❑ Proj. Due Date: no Proj. Name:
Packing Material: ❑ Bubble Wrap ❑ Bu ble ags ❑ None ❑ Other
Thermometer Used: IR Gun T1102 T Type of lee: e Blue None 'Samples on ice, cooling process has begun
Tamn rnrranfinn Facfnr T1102• No Correction T1301- No Correction
/ °C
Corrected Cooler Temp.:(
Temp should be above freezing to 6°C
Biological Tissue is Frozen: Yes No N/A
Comments:
y�ami in
Date and Initials of peon exg
contents:
Chain of Custody Present:
P*es-
ONO
❑NIA
1.
Chain of Custody Filled Out:
Yes
ONO
❑NIA
2.
Chain of Custody Relinquished:
/dyes ❑No ❑N/A
3.
Sampler Name & Signature on COC:
. �s
❑No
❑N/A
4.
Samples Arrived within Hold Time:
Yes
❑No
❑N/A
5.
Short Hold Time Analysis (<72hr):
❑Yes,290
❑N/A
6.
Rush Turn Around Time Requested:
❑Yes, DN6
❑N/A
7.
Sufficient Volume:
; --'Yes
El No
❑N/A
8.
Correct Containers Used:
-Pace Containers Used:
,-/]Yes
- -fiYes
ONO
ONO
❑NIA
❑N/A
g.
Containers Intact:
iClves
❑No
El N/A
10.
Filtered volume received for Dissolved tests
❑Yes
❑No -[JN/A
11.
Sample Labels match COC:
-Includes date/time/ID/Analysis Matrix:
,,-ilYes
❑No
❑N/A
12.
All containers needing preservation have been checked.
All containers needing preservation are found to be in
compliance with EPA recommendation.
exceptions: VOA, coliform, TOC, O&G, WI-DRO (water)
❑Yes ❑Nof�N/A
❑Yes El No N/A
❑Yew©No
13.
Samples checked for dechlorination:
❑Yes
ONO
PKfA
14.
Headspace in VOA Vials (>6mm):
❑Yes
ONO
ha
15.
Trip Blank Present:
Trip Blank Custody Seals Present
Pace Trip Blank Lot # (if purchased):
❑Yes
❑Yes
ONO
ONO
-D6[X
❑N/A
16.
Client Notification/ Resolution: Field Data Required? Y / N
Person Contacted: Date/Time:
Comments/ Resolution:
SCURF Review: -' �� 1 1� Date: i�—
SRF Review: Date: _ 17
Note: Whenever there is a discrepancy affecting North Carolina compliance
samples, a copy of this form will be sent to the North Carolina DEHNR
Certification Office ( i.e out of hold, incorrect preservative, out of temp,
incorrect containers)
WOlt:92189472
921l8i94'7i!2NN
Page 12 of 13

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13 of 13