WS-4643_15046_CA_MRP_20150715

2725 E. Millbrook Road, Suite 121
Raleigh, NC 27604
Tel: [phone]
Fax: [phone]
www.atcassociates.com
N.C. Engineering License No. C-1598

1

July 15, 2015

Mr. Herbert Berger
North Carolina Department of Environment and Natural Resources
Division of Waste Management
Underground Storage Tank Section
1637 Mail Service Center
Raleigh, North Carolina 27699-1637

Re: Federal/State-Lead Letter Report
Save More #45
1424 North Fayetteville Street
Asheboro, Randolph County, North Carolina
NCDENR Incident No. 15046
ATC Project No. NCDENR2002

Dear Mr. Berger:

ATC Associates of North Carolina, P.C. (ATC) is pleased to submit this Federal/State Lead Letter
Report documenting assessment activities performed at the site in May 2015 at the Save More #45
site located at 1424 North Fayetteville Street in Asheboro, North Carolina. A site topographic map is
included as Figure 1 and a site map depicting pertinent features is included as Figure 2. Assessment
activities were performed based on a April 20, 2015, Task Authorization (TA-2) by the Trust Fund
Branch of the Underground Storage Tank (UST) Section, Division of Waste Management, North
Carolina Department of Environment and Natural Resources (NCDENR). The work is being
performed as part of the State Lead Contract #N14004i between NCDENR and ATC.

On May 14, 2015, ATC supervised the installation of monitoring well MW-7 located on the
downgradient boundary of the site property. The purpose of the monitoring well was to delineate
groundwater impacted above Gross Contaminant Levels (GCLs). Carolina Soil Investigations, Inc.
(CSI) installed the monitoring well using hand auger and air drilling rig techniques. The well was
installed to 30 feet below ground surface (bgs) and screened from 15 to 30 feet bgs. Lithology
encountered during the monitoring well installation consisted of clay to a depth of 22 feet bgs at
which point bedrock was encountered. Field notes documenting well installation activities are
included as Appendix A. A soil boring log and well construction record are included as Appendix B.
In addition, on May 14, 2015, ATC installed a well boom in monitoring well MW-1 in an attempt to
remove free product from the well.

ATC mobilized to the site on May 17, 2015, to measure the groundwater elevation and collect a
groundwater sample from monitoring well MW-7. Well construction information and groundwater
elevation data is summarized on Table 1 and a site map indicating monitoring well locations is shown
on Figure 2. The groundwater sample was collected in laboratory-supplied, preserved containers;
entered into chain of custody control; placed on ice; and shipped to North Carolina-accredited Con-

TABLES

TABLE 1
WELL CONSTRUCTION AND
GROUNDWATER ELEVATION DATA
SAVE MORE #45
1424 NORTH FAYETTEVILLE STREET
ASHEBORO, NORTH CAROLINA
INCIDENT #15046
11/17/2003 20.45 -- -- 79.55
3/24/2009 23.53 -- -- 76.47
1/20/2015 23.01 22.91 0.10 77.07
11/17/2003 18.58 -- -- 81.15
3/24/2009 21.14 -- -- 78.59
1/20/2015 21.32 -- -- 78.41
11/17/2003 20.36 -- -- 79.76
3/24/2009 23.21 -- -- 76.91
1/20/2015 22.92 -- -- 77.20
11/17/2003 20.50 -- -- 78.49
3/24/2009 23.13 -- -- 75.86
1/20/2015 22.56 -- -- 76.43
11/17/2003 18.52 -- -- 80.15
3/24/2009 21.59 -- -- 77.08
1/20/2015 18.91 -- -- 79.76
11/17/2003 18.75 -- -- 81.27
3/24/2009 21.23 -- -- 78.79
1/20/2015 21.39 -- -- 78.63
MW-7 5/14/2015 15 15-30 30 NS 5/17/2015 23.45 -- -- NM
11/17/2003 21.19 -- -- 78.68
3/24/2009 24.33 -- -- 75.54
1/20/2015 23.65 -- -- 76.22
Notes:
3. NS = Not Surveyed
2. NM = Not Measured
Date
Measured
Depth to
Water
(feet)
Top of Casing
Elevation (feet)
Groundwater
Elevation
(feet)
Well ID Date
Installed
Well
Casing
Depth
Screened
Interval
Bottom
of Well
1. For monitoring wells with free product, groundwater elevation is calculated by the following formula: TOC Elevation - Depth to Water + (0.76*Free Product Thickness)
MW-1
MW-2
MW-3
MW-4
MW-5
10 10-25 25 100.00
10 10-25 25 99.73
100.12238-238
99.878580-8580VEW-1
5 5-20 20 98.99
98.67
Depth to
Free Product
(feet)
Free Product
Thickness
(feet)
MW-6 12 12-27 27 100.02
249-249
11/13-14/03
10/3/2003
10/3/2003
11/12/2003
11/12/2003
11/12/2003
11/12/2003
TABLE 2GROUNDWATER ANALYTICAL RESULTSSAVE MORE #451424 NORTH FAYETTEVILLE STREETASHEBORO, NORTH CAROLINAINCIDENT #15046 Well ID Sample DateBenzeneTolueneEthylbenzeneTotal XylenesMTBEIsporpyl Ether (IPE)NaphthaleneIsopropylbenzenen-Butylbenzenen-PropylbenzeneAcetone2-Butanone1,2,4-Trimethylbenzene1,3,5-TrimethylbenzeneMW-7 5/17/201522,000 24,000 2,400 11,700 80,000 640<24 62J 48J190 8,600B,J3,4002,200 4601 600 600 500 20 70 6 70 70 70 6,000 4,000 400 4005,000 260,000 84,500 85,500 20,000 70,000 6,000 25,000 6,900 30,000 6,000,000 4,000,000 28,500 25,000Notes:1. MTBE = Methyl Tertiary Butyl Ether.2. IPE = Isopropyl Ether.3. "<" or ND = Not detected at or above the laboratory method dectection limit.4. Concentrations are reported in micrograms per liter (ug/l) = parts per billion (ppb).5. Concentrations in bold equal or exceed the corresponding NCDENR Groundwater Quality 2L Standard (2L Standard) updated April 2013.6. GCL = Gross Contamination Limit.7. J = Indicates constituent was detected above laboratory detection limit but below laboratory reporting limit8. B = Analyte is found in the associated blank as well as in the sample.2L Standard (ug/l)GCL (ug/l)
TABLE 3HISTORICAL GROUNDWATER ANALYTICAL RESULTSSAVE MORE #451424 NORTH FAYETTEVILLE STREETASHEBORO, NORTH CAROLINAINCIDENT #15046 3030C10/3/20039,400 970 1,100 1,640 140,000 670 60061160 540-- 7.75,500 11,000 1,2003/22/200912,400 1,010 1,430 2,780 226,000--490BQL BQL1,000--30.1 286,000 9,550 4,6601/20/2015NS/FP NS/FP NS/FP NS/FP NS/FP NS/FP NS/FP NS/FP NS/FP NS/FP NS/FP NS/FP NS/FP NS/FP NS/FP10/3/2003 BQL BQL BQL BQL BQL ND BQL BQL BQL BQL -- BQL BQL BQL BQL3/22/2009 BQL BQL BQL BQL BQL -- BQL BQL BQL BQL -- BQL BQL BQL BQL1/20/2015 <0.079 <0.09 <0.092 <0.18 <0.09 <0.18 <0.12 <0.11 <0.094 <0.18 0.17J NA NA NA NA11/17/20033,900 1,300BQL590 62,000ND BQL BQL BQL BQL -- BQL5,100 2,700 1,1003/22/20093,960 1,030BQL910 35,000-- BQL BQL BQL BQL -- 550,300 4,390 1,6501/20/201514,000 1,400 2,600 5,350 19,000 160 760 74 200 1,000 19JNA NA NA NA11/17/20033637 4.1 82 BQL ND9.6BQL 1 22 -- 9.1 290 210 1903/22/200918330.6 28.5 146 BQL --72.211.3 21 134 --33.3 1,650 811 5351/20/20157.40.54 2.3 1.75J <0.09 <0.18133.7 4.4 1.6 <0.08 NA NA NA NA11/17/20039.3BQL BQL BQL 0.81 ND 4 0.83 1.2 BQL -- BQL BQL BQL BQL3/22/2009 BQL BQL BQL BQL BQL -- BQL BQL BQL BQL -- BQL BQL BQL BQL1/20/2015 <0.079 <0.09 <0.092 <0.18 0.62 <0.18 <0.12 <0.11 <0.094 <0.18 0.15J NA NA NA NA11/17/2003 BQL BQL BQL BQL 9.2 ND BQL BQL BQL BQL -- BQL BQL BQL BQL3/22/2009 BQL BQL BQL BQL BQL -- BQL BQL BQL BQL -- BQL BQL BQL BQL1/20/2015 <0.079 <0.09 <0.092 <0.18 0.57 <0.18 <0.12 <0.11 <0.094 <0.18 0.21J NA NA NA NAMW-7 5/17/201522,000 24,000 2,400 11,700 80,000 640<24 62J190 2,200<16NANANANA11/17/2003362.8 BQL BQL26,000 160BQL BQL BQL BQL -- BQL2,600BQL BQL3/22/2009 BQL BQL BQL BQL23,200-- BQL BQL BQL BQL -- BQL15,100BQL BQL1/20/2015 <2 <2.2 <2.3 <4.53,90013 <3 <2.8 <2.4 <2.43.2JNA NA NA NA1 600 600 500 20 70 6 70 70 400 0.7 15 400 700 2005,000 260,000 84,500 85,500 20,000 70,000 6,000 25,000 30,000 28,500 700 15,000 NE NE NENotes:1. MTBE = Methyl Tertiary Butyl Ether2. BQL = Below Quantitation Limit3. ND = Not Detected4. "<" = Not detected at or above the laboratory method dectection limit.5. GCL = Gross Contamination Limit6. NE = Not established7. J = Indicates constituent was detected above laboratory detection limit but below laboratory reporting limit8. Concentrations are reported in ug/L (micrograms per liter = parts per billion (ppb).9. Concentrations in bold equal or exceed the corresponding NCDENR Groundwater Quality 2L Standard (2L Standard).10. -- = Not reported in historical tables11. NA = Not AnalyzedMADEP VPH1,2,4-TrimethylbenzeneTotal XylenesWELL IDC9-C-10 AromaticsNaphthaleneIsopropylbenzenen-PropylbenzeneC9-C12 Aliphatics2L Standard (ug/l)GCL (ug/l)BenzeneTolueneTotal LeadC5-C8 AliphaticsMTBETetrachloroethyleneEthylbenzeneMW-6VEW-16200BMW-1MW-2MW-3MW-4MW-5Date CollectedAnalytical MethodIsopropyl Ether

FIGURES

2725 E. Millbrook Road, Ste 121
Raleigh, NC 27604
[phone]
PROJECT NO: NCDENR2002
DATE: 1/2015 REVIEWED BY: GA
Save More #45– Incident #15046
1424 North Fayetteville Street
Asheboro, Randolph County, North Carolina
SOURCE: MyTopoMap.com
SCALE: 1” = 825’
FIGURE 1: SITE TOPOGRAPHIC MAP
SITE
N

APPENDIX A

FIELD NOTES

APPENDIX B

SOIL BORING LOG AND WELL CONSTRUCTION RECORD
06-10-2015 S:\Enviro\NCDENR State Lead Contract\Herb Sites\15046 Save More 45\Reports\June 2015\MW-7 Boring Log.borClient: NCDENR State Lead Program
ATC Project No. NCDENR2002
Asheboro, Randolph County, North Carolina
1424 N Fayetteville Street
Save More #45 - Incident #15046
Terminated boring at 30 feet below ground surface.
BORING LOG: MW-7
(Page 1 of 1)
Date(s) Drilled : 5/14/15
Drilling Contractor : Carolina Soil Investigations
Drilling Method : HA and Air Rig
Boring Diameter : 6 Inches
Logged By : Garrett Stancil
Depth In Feet0
5
10
15
20
25
30 USCSCL
CL
CL
CL
ME GRAPHICDESCRIPTION
Topsoil, gravel
Brown silty CLAY, dry
Brown, orange silty CLAY, dry
Brown, tan silty CLAY, dry
Tan silty CLAY, dry
Bedrock
End of boring
Elev.: Not Surveyed
Well: MW-7
Grout
Bentonite
Sand Pack
Cover
Casing
Screen

APPENDIX C

LABORATORY ANALYTICAL REPORT

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Table of Contents
Table of Contents
Sample Summary 3
Case Narrative 4
Sample Results 7
15E0809-01 7
Sample Preparation Information 9
QC Data 10
Volatile Organic Compounds by GC/MS 10
B122390 10
B122485 14
Flag/Qualifier Summary 18
Certifications 19
Chain of Custody/Sample Receipt 21
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