FA-2330_29173_CA_LTR_20230405

2725 E. Millbrook Road, Suite 121
Raleigh, NC 27604
Telephone [phone]
www.atcgroupservices.com

ATC Project No. SLC2917301 NCDEQ State Lead Program

April 5, 2023

Mr. Hassan Osman
North Carolina Department of Environmental Quality
Division of Waste Management – Underground Storage Tank Section
1646 Mail Service Center
Raleigh, North Carolina 27699-1646

Subject: Free Product Recovery and Groundwater Monitoring Letter Report
Howard’s Fina
3529 Bragg Boulevard
Fayetteville, Cumberland County, North Carolina
NCDEQ Incident No. 29173

Dear Mr. Osman:

ATC Associates of North Carolina, P.C. (ATC) is pleased to submit this Free Product Recovery and
Groundwater Monitoring Letter Report, which documents an aggressive fluid vapor recovery (AFVR) event and
subsequent groundwater sampling event conducted at the above referenced site. The activities were
conducted in order to remove light non-aqueous phase liquid (LNAPL) in monitoring well MW-1. The activities
were performed based on a November 7, 2022, Task Authorization (TA-01) by the Trust Fund Branch of the
Underground Storage Tank (UST) Section, Division of Waste Management, North Carolina Department of
Environmental Quality (NCDEQ). The work is being performed as part of State Lead Contract #N122019A
between NCDEQ and ATC.

The Howard’s Fina site is located at 3529 Bragg Boulevard in Fayetteville, Cumberland County, North
Carolina. The site formerly operated as a petroleum retail facility and service garage. The former garage
building was razed circa 2010. The eastern portion of the site is developed with a single-story vacant building
formerly occupied by Points Auto Masters. The remaining portions of the site consist of an asphalt-paved
parking lot, grassland, and wooded land. The former UST system consisted of one 3,000-gallon diesel UST,
one 3,000-gallon gasoline UST, one 4,000-gallon gasoline UST, and one 6,000-gallon gasoline UST which
were removed November 2004. The UST system was installed in 1971 and 1976. Three Type II monitoring
wells (MW-1, MW-2, and MW-4) and one Type III monitoring well (MW-1D) are associated with the site.
Monitoring well MW-3 appears to have been destroyed. There are no receptors within 1,000 feet of the site
property. A site topographic map is included as Figure 1 and a site map depicting monitoring well locations
and other pertinent site features is included as Figure 2.

Eastern Environmental Management, LLC (Eastern) was subcontracted to perform an eight-hour AFVR event
at the site on November 16, 2022. Monitoring well MW-1 was used as the extraction point for the event. Prior
to performing the event, MW-1 was gauged for the possible presence of LNAPL and to record the groundwater
elevation. LNAPL was detected in the well (0.42 feet) prior to the event but not detected following the
completion of the event. Monitoring well construction details and groundwater elevation data from the AFVR
event is included as Table 1. Field notes are included in Appendix A. Photographs of the site and AFVR
activities are included in Appendix B.

During AFVR activities, a liquid ring vacuum pump unit was plumbed to the designated extraction point, and a
drop “stinger” pipe extended into the well through an airtight seal at the top of the well casing (TOC) and into
the water column. Throughout the AFVR process, a cone of depression formed around a designated recovery
point by drawing down the groundwater surface levels, thus causing impacted water surrounding the recovery
point to be extracted. Soil petroleum vapor within the cone of depression and the overlying vadose zone were
removed as vapor by air passing through the soil.
Howard’s Fina
April 5, 2023
Page 2 of 2

ATC Project No. SLC2917301 NCDEQ State Lead Program

The AFVR event generated approximately 670 gallons of petroleum impacted groundwater. Field parameters,
including velocity, temperature, and volatile organic compound (VOC) concentrations were recorded
throughout the event. Based on the field readings, approximately 0.63 gallons of petroleum impacted vapor
were recovered during the event. The waste disposal manifest and AFVR calculations are included in
Appendix C.

On December 16, 2022, ATC attempted to collected a groundwater sample from MW-1 to evaluate the
effectiveness of the AFVR event. However, LNAPL was detected in the well, therefore a sample was not
collected.

AFVR events conducted at the site in May 2012, December 2019, and November 2022 appear generally
effective in reducing LNAPL levels in well MW-1. Therefore, ATC recommends an additional AFVR event.

If you have any questions or require additional information, please contact our office at [phone].

Sincerely,
ATC Associates of North Carolina, P.C.

Ashley M. W. Offer, P.G.
Senior Project Manager
Direct Line: 919-573-1206
Email: [e-mail]

Attachments:
Table 1 – Well Construction and Groundwater Elevation Data
Figure 1 – Topographic Map
Figure 2 – Site Map
Appendix A – Field Notes
Appendix B – Site Photographs
Appendix C – Waste Disposal Manifest and AFVR Calculations

Howard’s Fina

ATC Project No. SLC2917301 NCDEQ State Lead Program

TABLE

TABLE 1
WELL CONSTRUCTION DETAILS AND GROUNDWATER ELEVATION DATA

HOWARD'S FINA
3529 BRAGG BOULEVARD
FAYETTEVILLE, CUMBERLAND COUNTY, NORTH CAROLINA
INCIDENT #29173
Monitoring Well Date Installed Well Diameter
(inches)
Total Depth
(feet)
Screen Interval
(feet)
Top of Casing
(feet)Date Measured Depth to LNAPL
(feet)
Depth to
Groundwater (feet)
LNAPL Thickness
(feet)
Groundwater
Elevation (feet)
06/14/05 20.09 24.09 4.00 80.97
12/09/09 26.20 26.66 0.46 75.36
09/21/11 26.35 28.03 1.68 75.04
05/23/12 27.15 27.85 0.70 74.38
12/05/19 --26.44 --75.19
07/22/22 26.51 26.64 0.13 75.10
11/16/22 Pre-AFVR 26.89 27.31 0.42 74.68
11/16/22 Post-AFVR --28.42 --73.21
12/16/22 27.50 27.53 0.03 74.13
06/14/05 --27.01 --75.55
12/09/09 --31.50 --71.06
09/21/11 --35.06 --67.50
05/23/12 --33.15 --69.41
12/05/19 --30.78 --71.78
07/22/22 --32.66 --69.90
06/14/05 --23.15 --77.25
12/09/09 --24.06 --76.34
09/21/11 --24.96 --75.44
05/23/12 --24.90 --75.50
12/05/19 --23.27 --77.13
07/22/22 --24.63 --78.01
MW-3 6/7/2005 30 20-30 101.89 06/14/05 --24.51 --77.38
06/14/05 --24.79 --77.85
12/09/09 --DRY ----
09/21/11 --27.38 --75.26
05/23/12 --27.32 --75.32
12/05/19 --25.45 --77.19
07/22/22 --26.71 --75.93
Notes:
1. -- = LNAPL not detected.
2. Top of casing was provided in the September 2022 Groundwater Monitoring Report performed by Consultech Environmental, LLC.
3. Corrected groundwater elevation for wells with product = (Groundwater Elevation + (LNAPL Thickness *0.8581)).
4. LNAPL = Light non-aqueous phase liquid
20-30 101.63
6/7/2005MW-1D 102.5656-61612
MW-1 6/10/2005 2 30
MW-4 102.6420-303026/8/2005
100.40MW-2 6/7/2005 2 30 20-30
Page 1 of 1

Howard’s Fina

ATC Project No. SLC2917301 NCDEQ State Lead Program

FIGURES

Project Number:
Date:Scale:
Drn. By:
Ckd. By:H:\2022\1 OTHER OFFICES\NORTH CAROLINA\NCDEQ-STATE LEAD\FORMER HOWARD'S FINA\SLC2917301-VIC.DWG, FIG111/29/2022
HOWARD'S FINA - INCIDENT #29173
3529 BRAGG BOULEVARD
FAYETTEVILLE, NORTH CAROLINA
SLC2917301 BH
AW
1
1":2,000'SITE TOPOGRAPHIC MAP
N
SITE
SCALE: 1" = 100'
0 25 1005075
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SYCAM
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O
A
D
BRA
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B
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V
A
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GRASS
ASPHALTPARKING LOT
SHOPPING
CENTER
MW-4 MW-1
MW-2
MW-1D
WOODEDXXXXXXXXXXXX
X
X X X X X X X
X
X X X XXXXXXXXXXXXLEGEND:
SITE PROPERTY LINE
NOTE: ALL LOCATIONS ARE APPROXIMATE
PARCEL LINE
X X FENCE
MW-1
MW-1D
SHALLOW MONITORING WELL
Well Identification
DEEP MONITORING WELL
Well Identification
FORMER USTs
Project Number:
Date:Scale:
Drn. By:
Ckd. By:
Project Number:
Date:Scale:
Drn. By:
Ckd. By:H:\2022\1 OTHER OFFICES\NORTH CAROLINA\NCDEQ-STATE LEAD\FORMER HOWARD'S FINA\SLC2917301-SITE.DWG, FIG211/29/2022
HOWARD'S FINA - INCIDENT #29173
3529 BRAGG BOULEVARD
FAYETTEVILLE, NORTH CAROLINA
SLC2917301 BH
AW
2
AS SHOWNSITE PLAN

Howard’s Fina

ATC Project No. SLC2917301 NCDEQ State Lead Program

APPENDIX A

FIELD NOTES

Howard’s Fina

ATC Project No. SLC2917301 NCDEQ State Lead Program

APPENDIX B

SITE PHOTOGRAPHS

Photo 1: A view of the Site building. Photo 2: A view of the staging of the AFVR event at MW-1.
Site Photographs

Howard’s Fina – Incident #29173

3529 Bragg Boulevard
Fayetteville, Cumberland County, North Carolina

2725 E. Millbrook Road, Suite 121
Raleigh, North Carolina
Tel: [phone] Fax: [phone]
Photos Taken By: C. Lally Site ID: Incident #29173 ATC Project No.: SLC2917301

Photo 3: A view of the grassy area on the central portion of the Site (facing
northeast).
Photo 4: A view of the parking lot on the northern portion of the Site (facing
east).
Site Photographs

Howard’s Fina – Incident #29173

3529 Bragg Boulevard
Fayetteville, Cumberland County, North Carolina

2725 E. Millbrook Road, Suite 121
Raleigh, North Carolina
Tel: [phone] Fax: [phone]
Photos Taken By: C. Lally Site ID: Incident #29173 ATC Project No.: SLC2917301

Howard’s Fina

ATC Project No. SLC2917301 NCDEQ State Lead Program

APPENDIX C

WASTE DISPOSAL MANIFEST AND AFVR CALCULATIONS

FIELD DATA MEASUREMENTS AND TOTAL EMISSIONS CALCULATIONS - NOVEMBER 16, 2022
HOWARD'S FINA
3529 BRAGG BOULEVARD
FAYETTEVILLE, CUMBERLAND COUNTY, NORTH CAROLINA
INCIDENT #29173
Time Delta Time
(minute)
Temp
(˚F)
Relative
Humidity
(%)
Stack
Diameter
(inches)
Air Flow
(cfm)
Specific
Humidity
(lbW/lbDA)
Water
Vapor
(vol %)
Dry Basis
Air Flow
(dscfm)
Dry VOC
Concentration
(ppm)
Response
Factor
Corrected
VOC
Concentration
(ppm)
Mass
Concentration
(mg/m3)
Mass
Concentration
(lb/ft3)
Mass
Removed
(lb)
7:10 0 1,158 225 50.8 71.6 6.0 44 0.029 0.044 44 1212 1 1212 6444 0.000402 0.00
7:25 15 395.0 227 46.3 89.8 6.0 45 0.030 0.046 44 414 1 414 2202 0.000137 0.09
7:40 15 379.3 228 48.3 93.7 6.0 45 0.034 0.052 44 400 1 400 2127 0.000133 0.09
7:55 15 372.8 220 47.9 89.3 6.0 43 0.036 0.055 42 394 1 394 2097 0.000131 0.08
8:10 15 1,093 232 60.1 97.8 6.0 46 0.057 0.084 42 1193 1 1193 6343 0.000396 0.25
8:25 15 1,079 227 61.2 88.8 6.0 45 0.057 0.084 41 1178 1 1178 6262 0.000391 0.24
8:40 15 288.3 233 51.6 92.4 6.0 46 0.057 0.084 43 315 1 315 1673 0.000104 0.07
8:55 15 1,042 220 60.4 96.8 6.0 43 0.057 0.084 40 1137 1 1137 6047 0.000378 0.23
9:10 15 379.4 228 67.3 97.4 6.0 45 0.057 0.084 41 414 1 414 2202 0.000137 0.08
9:40 30 1,178 231 69.6 97.3 6.0 45 0.057 0.084 41 1286 1 1286 6837 0.000427 0.53
10:10 30 334.2 238 85.1 88.2 6.0 47 0.057 0.084 41 365 1 365 1940 0.000121 0.15
10:40 30 1,327 150 81.9 96.7 6.0 29 0.057 0.084 26 1448 1 1448 7701 0.000481 0.38
11:10 30 1,193 156 83.8 98.3 6.0 31 0.057 0.084 27 1302 1 1302 6924 0.000432 0.35
12:10 60 262.5 174 91.7 98.9 6.0 34 0.057 0.084 30 286 1 286 1523 0.000095 0.17
13:10 60 388.2 208 103.4 99.2 6.0 41 0.057 0.084 35 424 1 424 2253 0.000141 0.30
14:10 60 825 137 104.7 99.6 6.0 27 0.057 0.084 23 900 1 900 4788 0.000299 0.41
15:10 60 944 142 108.3 99.8 6.0 28 0.057 0.084 24 1030 1 1030 5478 0.000342 0.49
3.92
Total Emissions in Gallons 0.63
Notes:
VOC = Volatile organic compounds measured using a photoionization detector (PID)
ppm = parts per million
cfm = cubic feet per minute
Air Flow= π*(Stack Diameter (in.)/12/2)2*Velocity
Specific Humidity = Data from psychrometric chart at measured temperature and relative humidity in pounds of water per pound of dry air (lbW/lbDA).
Water Vapor = % water vapor on a volume basis = (Specific Humidity / 18 lb-mole H2O) / [(1 / 28.84 lb-mole dry air) + (Specific Humidity / 18 lb-mole H2O)]
Dry Basis Air Flow = Flow volume on a dry basis at a standard temperature of 68˚F = (1-Water Vapor) (Air Flow) [528˚R / (Temperature+460)]
dscfm = dry standard cubic feet per minute
Dry VOC Concentration = [VOC Concentration / (1-Water Vapor)]
Response Factor = Response Factor of PID; 1 if response factor is unknown
Corrected VOC Concentration = Dry VOC Concentration x Response Factor
Mass Concentration (mg/m3) = Mass concentration VOC as gasoline dry basis at standard temperature = (Corrected VOC Concentration) (128 mg/mg-mole / 24.07 m3/mg-mole)
Mass Concentration (lb/ft3) = [Mass Concentration (mg/m3)] [(6.243 * 10-8)(lb/ft3)/(mg/m3)]
mg/m3 = milligrams per cubic meter
lb/ft3 = pounds per cubic foot
Mass Removed (lb) = [Mass Concentration (lb/ft3)] [Dry Basis Air Flow (dscfm)] [Time Interval (min)]
Total Emissions in Pounds
Velocity
(feet/minute)
VOC
Concentration
(ppm)