FA-2330_29173_CA_LTR_202300803

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

ATC Project No. SLC2917302 NCDEQ State Lead Program

August 03, 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 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 Letter Report,
which documents an aggressive fluid vapor recovery (AFVR) event and subsequent light non-aqueous phase
liquid (LNAPL) gauging event conducted at the above referenced site. The activities were conducted in order
to remove LNAPL in monitoring well MW-1. The activities were performed based on an April 5, 2023, Task
Authorization (TA-02) 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 water supply wells within 1,000 feet and
no surface water bodies within 500 feet of the site. 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 April 26, 2023. 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 (1.28 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

ATC Project No. SLC2917302 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
4/26/2023 Pre-AFVR 26.26 27.54 1.28 75.19
4/26/2023 Post AFVR --27.45 --74.18
05/24/23 26.09 27.46 1.37 75.35
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
100.40MW-2 6/7/2005 2 30 20-30
MW-4 102.6420-303026/8/2005
MW-1 6/10/2005
6/7/2005MW-1D 102.5656-61612
2 30 20-30 101.63
Page 1 of 1

Howard’s Fina

ATC Project No. SLC2917302 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
N
SYCAM
O
R
E

D
A
I
R
Y

R
O
A
D
BRA
G
G

B
O
U
L
E
V
A
R
D
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. SLC2917302 NCDEQ State Lead Program

APPENDIX A

FIELD NOTES

Howard’s Fina

ATC Project No. SLC2917302 NCDEQ State Lead Program

APPENDIX B

SITE PHOTOGRAPHS

Photo 1: MW-1 during AFVR, facing west. Photo 2: MW-1 during AFVR, facing southwest.
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: J. Jones Site ID: Incident #29173 ATC Project No.: STL2917302

Photo 3: MW-1 after AFVR event facing west. Photo 4: Product in MW-1 during attempted sampling event (5/24/2023)
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: J. Jones Site ID: Incident #29173 ATC Project No.: STL2917302

Howard’s Fina

ATC Project No. SLC2917302 NCDEQ State Lead Program

APPENDIX C

WASTE DISPOSAL MANIFEST AND AFVR CALCULATIONS
FIELD DATA MEASUREMENTS AND TOTAL EMISSIONS CALCULATIONS - APRIL 26, 2023
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)
7:45 0 2,008 38 70.6 92.0 6.0 7 0.015 0.023 7 2056 1 2056 10931 0.000682 0.00
8:00 15 2,804 28 75.3 96.9 6.0 5 0.018 0.029 5 2886 1 2886 15349 0.000958 0.08
8:15 15 3,118 42 86.8 100.0 6.0 8 0.028 0.043 8 3258 1 3258 17323 0.001081 0.12
8:30 15 2,960 30 95.7 100.0 6.0 6 0.037 0.057 5 3137 1 3137 16684 0.001042 0.08
8:45 15 3,527 34 102.7 100.0 6.0 7 0.047 0.070 6 3792 1 3792 20165 0.001259 0.11
9:00 15 3,444 25 127.5 100.0 6.0 5 0.103 0.141 4 4010 1 4010 21325 0.001331 0.08
9:15 15 4,486 46 138.9 100.0 6.0 9 0.147 0.191 6 5544 1 5544 29480 0.001840 0.18
9:30 15 4,336 50 142.4 100.0 6.0 10 0.165 0.209 7 5480 1 5480 29140 0.001819 0.19
9:45 15 4,042 50 145.3 100.0 6.0 10 0.181 0.225 7 5213 1 5213 27722 0.001731 0.17
10:15 30 3,748 40 155.5 100.0 6.0 8 0.254 0.289 5 5273 1 5273 28038 0.001750 0.25
10:45 30 3,599 47 157.5 100.0 6.0 9 0.272 0.303 5 5167 1 5167 27478 0.001715 0.28
11:15 30 3,012 35 166.7 100.0 6.0 7 0.378 0.377 4 4838 1 4838 25727 0.001606 0.17
11:45 30 2,734 39 165.5 100.0 6.0 8 0.362 0.367 4 4319 1 4319 22967 0.001434 0.18
12:15 30 3,159 37 158.8 100.0 6.0 7 0.285 0.313 4 4599 1 4599 24457 0.001527 0.19
12:45 30 6,615 36 173.3 100.0 6.0 7 0.489 0.439 3 11799 1 11799 62743 0.003917 0.39
13:15 30 3,702 38 171.2 100.0 6.0 7 0.450 0.419 4 6369 1 6369 33871 0.002115 0.23
13:45 30 14,523 41 177.8 94.5 6.0 8 0.591 0.486 3 28272 1 28272 150346 0.009386 0.96
14:15 30 15,000 43 177.9 100.0 6.0 8 0.593 0.487 4 29263 1 29263 155614 0.009715 1.04
14:45 30 15,000 21 174.2 100.0 6.0 4 0.507 0.448 2 27195 1 27195 144616 0.009028 0.51
15:15 30 5,056 34 173.7 100.0 6.0 7 0.497 0.443 3 9083 1 9083 48302 0.003016 0.28
15:45 30 4,253 16 174.1 100.0 6.0 3 0.505 0.447 1 7696 1 7696 40928 0.002555 0.11
5.61
Total Emissions in Gallons 0.90
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)

Howard’s Fina

ATC Project No. SLC2917302 NCDEQ State Lead Program

APPENDIX D

GROUNDWATER ELEVATION VS LNAPL THICKNESS GRAPH
0.00
0.50
1.00
1.50
2.00
2.50
3.00
3.50
4.00
4.50
70.00
72.00
74.00
76.00
78.00
80.00
82.00
LNAPL Thickness (feet)Groundwater Elevation (feet)MW-1 Groundwater Elevation Vs LNAPL Thickness
Groundwater Elevation (feet)LNAPL Thickness (feet)