HomeMy WebLinkAboutFA-11_2509_CA_AFVR_20231206_RW-2
3502 Hayes Road • Monroe, North Carolina 28110
113 West Firetower Road, Suite G • Winterville, North Carolina 28590
Phone (704) 845-4010 • (888) 870-4133 • Fax (704) 845-4012
December 6, 2023
Mr. Corey Futral
NCDEQ-UST Section
Wilmington Regional Office
127 Cardinal Drive Extension
Wilmington, NC 28405
Re: Free Product Recovery
November 14, 15 & 16 2023
Shields Exxon
100 North Sandhills Boulevard
Aberdeen, Moore County
North Carolina
Facility ID Number: 00-0-0000020676
Incident Number: 2509
GRI Project Number: 3913
Dear Mr. Futral,
Please find enclosed the referenced report for the abovementioned site.
If you have any questions, please contact William Regenthal at 704-845-4010.
Sincerely,
Geological Resources, Inc.
Leslie Maxtone-Graham
Administrative Assistant
Enclosure
Cc: Mr. Frank McNeill; McNeill Oil Company, Inc., file
3502 Hayes Road • Monroe, North Carolina 28110
113 West Firetower Road, Suite G • Winterville, North Carolina 28590
Phone (704) 845-4010 • (888) 870-4133 • Fax (704) 845-4012
Free Product Recovery Report – November 15, 2023
Shields Exxon
100 North Sandhills Boulevard
Aberdeen, Moore County
North Carolina
Facility ID Number: 00-0-0000020676
Incident Number: 2509
GRI Project Number: 3913
Prepared for:
Mr. Frank McNeill
McNeill Oil Company, Inc.
Post Office Box 396
Aberdeen, North Carolina 28315
December 5, 2023
William L. Regenthal, P. G.
Project Manager
Asher Knobel
Report Writer
___________________________________________________________________________________________
Prepared by: Geological Resources, Inc. Free Product Recovery Report – November 15, 2023
Prepared on: December 5, 2023 Shields Exxon
Project Manager: William L. Regenthal, P. G. GRI Project No. 3913
i
SITE INFORMATION
1. Site Identification
Shields Exxon (Facility ID 00-0-0000020676)
Incident Number 2509 – Intermediate Risk (I170D)
Location of Source Area: 100 North Sandhills Boulevard
Aberdeen, NC 28314
Moore County
35.133448° N / 79.428249° W (Topographical Map)
2. Information about Contacts Associated with the Leaking UST System
UST Owner
McNeill Oil Company, Inc.
P.O. Box 369
Aberdeen, NC 28315
910-944-2329
fmcneill@mcneilloilandpropane.com
UST Operator
McNeill Oil Company, Inc.
P.O. Box 369
Aberdeen, NC 28315
910-944-2329
fmcneill@mcneilloilandpropane.com
Property Owner
MC, B, MC, LLC
P.O. Box 369
Aberdeen, NC 28315
910-944-2329
fmcneill@mcneilloilandpropane.com
Property Occupant
Gary’s Service Center, Inc.
100 N Sandhills Blvd.
Aberdeen, NC 28315
910-944-5942
Consultant/Contractor
Geological Resources, Inc.
3502 Hayes Road
Monroe, NC 28110
704-845-4010
wlr@geologicalresourcesinc.com
AFVR Contractor/Operator
Eastern Environmental
Management LLC.
P.O. Box 4030
Rocky Mount, NC 27803
252-443-2224
3. Information about Release
Release was discovered on March 11, 1975.
Approximately 30,000 gallons of product was released from the leaking UST System.
Three 4,000-gallon gasoline and two 2,000-gallon gasoline USTs, associated dispensers and
product piping were removed from the site on May 16, 2000.
___________________________________________________________________________________________
Prepared by: Geological Resources, Inc. Free Product Recovery Report – November 15, 2023
Prepared on: December 5, 2023 Shields Exxon
Project Manager: William L. Regenthal, P. G. GRI Project No. 3913
ii
EXECUTIVE SUMMARY
Shields Exxon is located at 100 North Sandhills Boulevard in Aberdeen, Moore County, North Carolina.
The site is currently owned by MC, B, MC, LLC and operates as an automotive repair shop. A release was
discovered at the site in March 1975. On May 16, 2000, three 4,000-gallon gasoline and two 2,000-gallon
gasoline USTs were removed from the site. The adjoining properties are a mixture of general commercial
and residential properties. According to the information determined during receptor survey activities, no
water supply wells were identified within a 1,000-foot radius of the source area. Aberdeen Creek was
identified within a 500-foot radius of the source area. Public water is available to the site and surrounding
properties within a 1,500-foot radius of the site.
On November 15, 2023, an AFVR event was conducted at the site on RW-2. A total of 482 gallons of
affected ground water was recovered during the AFVR event. No measurable liquid free product was
recovered during this AFVR event. The average liquid recovery rate was 60.25 gallons per hour. A total
of 4.09 gallons of vapor phase free product was removed during the event at a rate of 0.51 gallons per
hour.
The site is intermediate risk due to the presence of free product and contaminant concentrations above
GCLs. Free product needs to be removed and contaminant concentrations will need to be less than the
10 X 2B standards for the incident to be re-classified as low risk.
Based on this information, GRI recommends that free product removal should continue at the site until
free product is no longer present. Groundwater sampling at the site should occur within 30 days to
determine the results of the November 2023 AFVR event. Additional quarterly ground water sampling
events should be conducted to establish contaminant trends for the site while the feasibility of corrective
action options is discussed.
___________________________________________________________________________________________
Prepared by: Geological Resources, Inc. Free Product Recovery Report – November 15, 2023
Prepared on: December 5, 2023 Shields Exxon
Project Manager: William L. Regenthal, P. G. GRI Project No. 3913
iii
ACRONYMS
ACM: Asbestos Containing Materials
AFVR: Aggressive Fluid-Vapor Recovery
ARR: Acknowledgement of Report Receipt
AS: Air Sparging
AST: Aboveground Storage Tank
ASTM: American Society for Testing and
Materials
BGS: Below Ground Surface
CAP: Corrective Action Plan
CFR: Code of Federal Regulations
CSA: Comprehensive Site Assessment
DPE: Dual Phase Extraction
DRO: Total Petroleum Hydrocarbons Diesel
Range Organics
DWM: Division of Waste Management
DWR: Department of Water Resources
EPA: Environmental Protection Agency
EPH: Extractible Petroleum Hydrocarbons
ESA: Environmental Site Assessment
GCL: Gross Contamination Level
GRI: Geological Resources, Inc.
GRO: Total Petroleum Hydrocarbons
Gasoline Range Organics
HERR: Hazmat Emergency Response and
Remediation
LSA: Limited Site Assessment
MAC: Maximum Allowable Concentration as
specified in T15A NCAC 2L.0202
MADEP: Massachusetts Department of
Environmental Protection
MCC: Maximum Contaminant Concentrations
MMPE: Mobile Multi-Phase Extraction
NAPL: Non-Aqueous Phase Liquid, “Free
Product”
NCDEQ: North Carolina Department of
Environmental Quality
NCDOT: North Carolina Department of
Transportation
NFA: Notice of No Further Action
NORR: Notice of Regulatory Requirements
NOV: Notice of Violation
NPDES: National Pollutant Discharge
Elimination System
NRP: Notice of Residual Petroleum
O&M: Operation and Maintenance
PAHs: Polynuclear Aromatic Hydrocarbons
PCA: Pre-Construction Assessment
RAL: Regulatory Action Level
SCLs: Soil Cleanup Level
SPCC: Spill Prevention Control and
Countermeasures
SVE: Soil Vapor Extraction
SVOCs: Semi-Volatile Organic Compounds
SWPPP: Stormwater Pollution Prevention Plan
TCLP: Toxicity Characteristic Leaching
Procedure (EPA Method SW-846 1311)
TOC: Top of Casing
TPH: Total Petroleum Hydrocarbons
USGS: United States Geological Survey
UST: Underground Storage Tank
UVF: Ultraviolet Fluorescence
VOCs: Volatile Organic Compounds
VPH: Volatile Petroleum Hydrocarbons
___________________________________________________________________________________________
Prepared by: Geological Resources, Inc. Free Product Recovery Report – November 15, 2023
Prepared on: December 5, 2023 Shields Exxon
Project Manager: William L. Regenthal, P. G. GRI Project No. 3913
TABLE OF CONTENTS
SITE INFORMATION ............................................................................................................................ i
EXECUTIVE SUMMARY ....................................................................................................................... ii
ACRONYMS ....................................................................................................................................... iii
1.0 SITE HISTORY AND CHARACTERIZATION ...................................................................................1
2.0 PRESENTATION OF CURRENT SITE ASSESSMENT INFORMATION/ COMPARISON TO HISTORICAL
ASSESSMENT INFORMATION ...................................................................................................2
3.0 FREE PRODUCT REMOVAL ........................................................................................................3
4.0 AFVR EVENT ............................................................................................................................3
5.0 PROPOSED REMEDIAL OPTIONS ...............................................................................................4
6.0 CONCLUSIONS .........................................................................................................................4
7.0 LIMITATIONS ...........................................................................................................................4
8.0 STATEMENTS AND CERTIFICATION ...........................................................................................5
FIGURES
Figure 1: Site Location Map
Figure 2: Site Map
Figure 3: Site Vicinity Map
TABLES
Table 1: UST Owner and Operator Information
Table 2: UST System Information
Table 3: Adjacent Property Owner Information
Table 4: Well Construction and Gauging Information
Table 5: Free Product Recovery Results
Table 6: Free Product Recovery Event Information
Table 7: Free Product Recovery Cost Summary
APPENDICES
Appendix A: State Correspondence
Appendix B: Historical Soil Quality Information and Cross Section Maps
Appendix C: AFVR Data and Calculations
Appendix D: Liquid Disposal Manifest
___________________________________________________________________________________________
Prepared by: Geological Resources, Inc. Free Product Recovery Report – November 15, 2023
Prepared on: December 5, 2023 Shields Exxon
Project Manager: William L. Regenthal, P. G. GRI Project No. 3913
1
1.0 SITE HISTORY AND CHARACTERIZATION
GRI presents the results of the November 15, 2023 AFVR event at the Shields Exxon site located at 100
North Sandhills Boulevard in Aberdeen, Moore County, North Carolina (Figure 1). These activities were
conducted in accordance with GRI Proposal No. 23-664, which was submitted to NCDEQ on October 12,
2023, and was approved as Task Authorization No. 2509-13 on October 17, 2023. State correspondence
has been included as Appendix A.
The site is currently owned by MC, B, MC, LLC and currently operates as an automotive repair shop. On
May 16, 2000, three 4,000-gallon gasoline and two 2,000-gallon gasoline USTs, associated dispensers and
product piping were removed. A release was discovered in March 1975. UST owner/operator information
and UST system information are included as Tables 1 and 2, respectively. The Registered Tank Report is
shown below:
The site and surrounding area are a mixture of general commercial and residential properties. The site
contains one building and is primarily capped with concrete and asphalt. The overall topography at the
site is relatively flat. Seventeen Type II monitoring wells (MW-1 through MW-17), one Type III monitoring
well (TW-1) and five recovery wells (RW-1 through RW-5) were installed at the site during previous ground
water assessment activities. Please note, MW-1 and MW-5 have not been located during past assessment
activities and are assumed to have been destroyed. A Site Map showing the locations of the monitoring
wells and the structures on-site has been included as Figure 2.
On September 10, 2015, GRI personnel conducted a receptor survey at the site. No water supply wells
were identified within a 1,000-foot radius of the source area. Aberdeen Creek was identified within 500-
feet of the contaminant source area. Municipal water is available to the site and surrounding properties.
Adjacent property owner information is presented in Table 3. A Site Vicinity Map showing the location of
Aberdeen Creek and adjacent properties has been included as Figure 3.
___________________________________________________________________________________________
Prepared by: Geological Resources, Inc. Free Product Recovery Report – November 15, 2023
Prepared on: December 5, 2023 Shields Exxon
Project Manager: William L. Regenthal, P. G. GRI Project No. 3913
2
Between December 2019 and September 2020, twenty-two soil borings were installed at the site in order
to delineate the free product and gross contamination plumes.
On September 6, 2023, free product removal via hand bailing was conducted on RW-1 and RW-4.
Approximately 0.25 gallons and 0.75 gallons of free product were removed from RW-1 and RW-4,
respectively. A total of 1.35 gallons of liquid was recovered and stored in a 55-gallon drum that had been
staged on site. A 2-inch absorbent boom and a 4-inch absorbent boom were installed in RW-1 and RW-4,
respectively, upon completion of hand bailing.
On November 14, 2023, an AFVR event was conducted in RW-1 and 526 gallons of liquid was recovered
as well as 3.95 gallons of product were recovered.
Refer to previous reports for additional information.
2.0 PRESENTATION OF CURRENT SITE ASSESSMENT INFORMATION/ COMPARISON TO HISTORICAL
ASSESSMENT INFORMATION
Soil assessment was not conducted during the current scope of work. Historical soil quality information
and cross section maps have been included as Appendix B.
On November 15, 2023, an AFVR event was conducted at the site on RW-2. A total of 482 gallons of
affected ground water was recovered during the AFVR event. Three Type II monitoring wells (MW-3, MW-
6, and MW-7) were used as observation wells during the event. No free product was observed in the
extraction and observation wells during this event. Depths to ground water in the Type II monitoring wells
ranged from 7.72 feet to 8.32 feet below the tops of well casings at the start of the event, and 7.73 to
8.31 at the conclusion of the event. Well construction and gauging information is presented in Table 4.
A summary of the current ground water gauging data for the AFVR event is shown below:
Well ID
Screened
Interval
(x to y ft.
BGS)
Bottom
of Well
(ft. BGS)
Top of
Casing
Elevation
(ft.)
Depth to
Water from
Top of
Casing
(feet)
Free
Product
Thickness
(ft.)
Ground
Water
Elevation
(ft.)
MW-3 Before AFVR 2.3-12.3 12.3 99.20 8.32 --- 90.88
MW-3 After AFVR 2.3-12.3 12.3 99.20 8.31 --- 90.89
MW-6 Before AFVR 3-13 13 99.37 8.24 --- 91.13
MW-6 After AFVR 3-13 13 99.37 8.31 --- 91.06
MW-7 Before AFVR 2-12 12 98.87 7.72 --- 91.15
MW-7 After AFVR 2-12 12 98.87 7.73 --- 91.14
RW-2 Before AFVR 3-13 13 100.32 8.10 --- 92.22
RW-2 After AFVR 3-13 13 100.32 8.09 --- 92.23
___________________________________________________________________________________________
Prepared by: Geological Resources, Inc. Free Product Recovery Report – November 15, 2023
Prepared on: December 5, 2023 Shields Exxon
Project Manager: William L. Regenthal, P. G. GRI Project No. 3913
3
Groundwater samples were not collected during this event. Since free product continues to be present
at the site, the baseline contaminant mass at the site has not been established.
The site is located in the Coastal Plain Physiographic Province of North Carolina. The seasonal high depth
to water is approximately 7 to 8 feet BGS.
3.0 FREE PRODUCT REMOVAL
In February 2022, a hand bailing event was conducted in MW-8 and RW-1 and 14.5 gallons of liquid were
recovered.
From August 1, 2022, through August 5, 2022, a MMPE event was conducted on MW-8, RW-1, RW-2, and
RW-4. A total of 1,500 gallons of liquid were recovered as well as 1.63 gallons of product were recovered.
In September 2023, a hand bailing event was conducted in RW-1 and RW-4. A total of 1.35 gallons of
liquid (product/water mix) was removed. Subsequently, one 2-inch absorbent boom was installed in RW-
1, and a 4-inch absorbent boom was installed in RW-4.
On November 14, 2023, an AFVR event was conducted in RW-1. A total of 526 gallons of liquid was
recovered as well as 3.95 gallons of product were recovered.
4.0 AFVR EVENT
An AFVR event was conducted at the site by Eastern Environmental Management, under the supervision
of GRI on November 15, 2023. Recovery well RW-2 was used as the extraction well during the event. The
AFVR equipment included a liquid ring pump, a 3,000-gallon capacity tanker, flexible vacuum hoses, 6-
foot discharge stack (6 inches in diameter), 1-inch diameter PVC stinger pipes and associated couplings
and pipe fittings to manifold to the wells. The AFVR system was rated at 1,450 cfm at 22 in./Hg. The
extraction and observation wells were gauged and purged prior to the start of the event.
Recovery well RW-2 was vacuumed continuously for the 8-hour event. During the event, measurements
of relative humidity, temperature, vacuum, exhaust velocity and off-gas concentrations were recorded at
the discharge stack every 15 minutes for the first two hours, and every 30 minutes thereafter during the
event. Vacuum at the extraction well ranged from 20.0 to 27.0 in./Hg. during the event. The effluent
velocity ranged from 169 to 1,400 feet per minute. The system temperature ranged from 57.3 to 117.9°F
and relative humidity ranged from 88.2 to 100 percent. The VOC off-gas concentrations increased from
62.9 ppm to 327.2 ppm during the event. The AFVR calculations have been included as Appendix C. A
summary of the gauging data for the November 15, 2023, AFVR event has been listed below:
Well ID
Product
Thickness
before
Recovery
(feet)
Product Thickness
after Recovery
(feet)
Amount of Liquid
Recovered
(gallons)
Amount of Product
Recovered as Liquid
(gallons)
RW-2 0.00 0.00 482.0 0.00
___________________________________________________________________________________________
Prepared by: Geological Resources, Inc. Free Product Recovery Report – November 15, 2023
Prepared on: December 5, 2023 Shields Exxon
Project Manager: William L. Regenthal, P. G. GRI Project No. 3913
4
The results of the AFVR event indicate that a total of 482 gallons of liquids were removed during the event.
Of the total liquids extracted, no measurable free product was observed in the tanker at the conclusion
of the event. Based on 8 hours of operation, the average liquid recovery rate was 60.25 gallons per hour.
Based on mass-removal calculations 25.56 pounds or 4.09 gallons of VOCs were removed as vapor. No
measurable free product was identified during the event. Summaries of AFVR event information and cost
analysis are provided in Tables 5, 6 and 7, respectively. A copy of the liquid disposal manifest is included
as Appendix D. At the conclusion of the AFVR event, all wastewater was transported to a permitted facility
for disposal. A summary of the free product recovery data from the November event is listed below:
Well ID
Average
Effluent
Velocity
(ft/min)
Average
Effluent
Temperature
(°F)
Average Effluent
Concentration
(ppm)
Amount of
Vaporized
Product
(gallons)
Amount of
Liquid
Recovered
(gallons)
Amount of
Product
Recovered
as Liquid
(gallons)
Total
Amount of
Product
Recovered
(gallons)
RW-2 954.0 104.2 218.70 4.09 482.0 0 4.09
Totals to Date 9.67 2,523.9 1.00 9.67
5.0 PROPOSED REMEDIAL OPTIONS
CAP activities should be completed for the site. In the interim, efforts for recovering free product should
continue with another MMPE and/or AFVR event on wells with free product (RW-1 and RW-4). Quarterly
ground water monitoring should continue in order to establish contaminant trends at the site while the
feasibility of corrective action options is being discussed. Once free product is removed and contaminant
concentrations remain less than the GCLs for at minimum two consecutive sampling events,
concentrations that exceed greater than ten times the 2B surface water standards can be addressed.
6.0 CONCLUSIONS
On November 15, 2023, an AFVR event was conducted at the site on RW-2. A total of 482 gallons
of affected ground water was recovered during the AFVR event. No measurable liquid free
product was recovered during this AFVR event. The average liquid recovery rate was 60.25 gallons
per hour. A total of 4.09 gallons of vapor phase free product was removed during the event at a
rate of 0.51 gallons per hour.
Free product removal should continue at the site until free product is no longer present.
Additional quarterly ground water sampling events should be conducted to establish contaminant
trends for the site while the feasibility of corrective action options are discussed.
Based on this information, GRI recommends that a sampling event should occur within 30 days to
evaluate the results of the November 15, 2023, AFVR event.
7.0 LIMITATIONS
This report has been prepared for the exclusive use of McNeill Oil Company, Inc. for specific application
to the referenced site in Moore County, North Carolina. The assessment was conducted based on the
scope of work and level of effort desired by NCDEQ and with resources adequate only for that scope of
work. Our findings have been developed in accordance with generally accepted standards of
FIGURES
SITE
NC 5 HWY
N POPLAR STE MAIN ST N SYCAMORE STBLUE STPAGE STELM ST
PINEHURST STHIGH ST
FAYETTEVILLE ST
BETHESDA AVE
W SAUNDERS AVE CYPRESS STWILDER AVE
RUSH ST
OCONNOR PL
857013138918
857013139659
857013137711
857013138433
857013230791
857013230823
857013139479
857013230505
857013230529KEITH STW MAPLE AVEN SANDHILLS BLVDN SANDHILLS BLVDN PINE STS SANDHILLS BLVDS SANDHILLS BLVDE SOUTH ST
E MAPLE AVE
S PINE STKNIGHT ST
W MA
I
N
S
T
S SYCAMORE STS GARRETT STTARBELL STW SOUTH ST
SUMMIT ST
WALNUT STS POPLAR STT B CREEL ST
EXCHANGE STLAKE PARK CROSSINGLAKE PARK CROSSINGE SAUNDERS AVE TALBOOTH STCAROLINA STCAMPBELL STLAKESHORE DRGLASGOW STFAIRVIEW AVE
HIGH ST
250-FT RADIUS
500-FT RADIUS
1,000-FT RADIUS
1,500-FT RADIUS
Legend
Subject Parcel
Stream or Creek Line
Street Centerline
Railroad Track
Lake or Pond
Parcel Boundary
FIGURE 2SITE VICINITY MAPSHIELDS EXXON - ABERDEEN100 NORTH SANDHILLS BOULEVARD ABERDEEN, MOORE COUNTY, NORTH CAROLINAINCIDENT NO. 2509
PREPARED BY:GEOLOGICAL RESOURCES, INC.SEPTEMBER 28, 2015
NOTE:THIS MAP IS BASED ON DATA FROMTHE MOORE COUNTY GIS OF NC.
0 300 600150Feet
SCALE: 1 INCH = 300 FEET
³Parcel ID Number857013139659
FIGURE 3
TABLES
UST ID Number 1 - 5 Facility ID Number
Owner or Operator?
Owner/OperatorMcNeill Oil Company, Inc.05/04/1975 - 05/16/2000
Address Telephone Number
Post Office Box 396, Aberdeen, NC 28315-0396 910-944-2329
TABLE 1
UST OWNER/OPERATOR INFORMATION
SHIELDS EXXON (INCIDENT NO. 2509)
00-0-0000020676
Name of Owner or Operator Dates of Ownership / Operation
Date: 06/24/19
Was Release
Associated
with UST
System?
(Yes / No)
1 Gasoline Gasoline 4,000 Unknown Unknown Unknown Yes
2 Gasoline Gasoline 4,000 Unknown Unknown Unknown Yes
3 Gasoline Gasoline 4,000 Unknown Unknown Unknown Yes
4 Gasoline Gasoline 2,000 Unknown Unknown Unknown Yes
5 Gasoline Gasoline 2,000 Unknown Unknown Unknown Yes
Current
or Most
Recent
Contents
Previous
Contents
Capacity
(gallons)
Date
Installed
Construction
Details
05/04/1975 Removed
(05/16/00)
Tank
Dimensions
Description of
Associated
Product Piping
and
Pumps
Status
of
UST
TABLE 2
UST SYSTEM INFORMATION
SHIELDS EXXON (INCIDENT NO. 2509)
Facility ID #: 00-0-0000020676
UST
ID
No.
Date: 06/19/19 Facility ID #: 0-020676
857013139659 (Site)MC, B, MC, LLC Post Office Box 396
Aberdeen, North Carolina 28315
857013230823 Moore County Farm Bureau, Inc.Post Office Box 430
Carthage, North Carolina 28327-0430
857013230791
857013230529
857013138918
857013230505 Bobby R. & Teresa Faulkner Post Office Box 268
Southern Pines, North Carolina 28388
857013139479 McPeake Retail Group, LLC Post Office Box 1497
Southern Pines, North Carolina 28388
857013138433 First Bank Post Office Box 508
Troy, North Carolina 27371
857013137711 Mubarak A. Shahbain Post Office Box 2048
Raeford, North Carolina 28376
• Properties are keyed to Figure 3.
Town of Aberdeen Post Office Box 785
Aberdeen, North Carolina 27315
• This information is based on the Moore County GIS website.
TABLE 3
ADJACENT PROPERTY OWNER INFORMATION
SHIELDS EXXON (INCIDENT NO. 2509)
PIN Number Property Owner Name Mailing Address
Date: 11/30/2023
09/10/15 NM NM NM Not Found
11/29/17 NM NM NM Not Found
06/05/19 NM NM NM Not Found
09/30/20 NM NM NM Not Found
02/14/22 NM NM NM Not Found
09/10/15 8.07 ---91.23
11/29/17 8.06 ---91.24
06/05/19 7.73 ---91.57
09/30/20 7.01 ---92.29
05/26/21 7.77 ---91.53
02/14/22 7.32 ---91.98
09/08/22 8.21 ---91.09
03/23/23 7.36 ---91.94
09/06/23 7.99 ---91.31
09/10/15 7.95 ---91.25
11/29/17 7.96 ---91.24
06/05/19 7.66 ---91.54
09/30/20 6.97 ---92.23
05/26/21 7.70 ---91.50
02/14/22 7.36 ---91.84
09/08/22 8.01 ---91.19
03/23/23 7.38 ---91.82
09/06/23 6.78 ---92.42
11/15/23 8.32 ---90.88 Before AFVR
11/15/23 8.31 ---90.89 After AFVR
09/10/15 7.67 ---91.30
11/29/17 7.69 ---91.28
06/05/19 7.45 ---91.52
09/30/20 6.67 ---92.30
05/26/21 7.45 ---91.52
02/14/22 7.12 ---91.85
09/08/22 7.72 ---91.25
03/23/23 7.12 ---91.85
09/06/23 7.50 ---91.47
09/10/15 8.41 ---91.72
11/29/17 NM NM NM Not Found
06/05/19 NM NM NM Not Found
09/30/20 NM NM NM Not Found
05/26/21 NM NM NM Not Found
02/14/22 NM NM NM Not Found
09/30/20 7.02 ---92.35
05/26/21 7.71 ---91.66
02/14/22 7.43 ---91.94
09/08/22 8.02 ---91.35
03/23/23 7.43 ---91.94
09/06/23 7.85 ---91.52
11/15/23 8.24 ---91.13 Before AFVR
11/15/23 8.31 ---91.06 After AFVR
09/30/20 6.38 ---92.49
05/26/21 7.18 ---91.69
02/14/22 6.91 ---91.96
09/08/22 7.48 ---91.39
03/23/23 6.77 ---92.10
09/06/23 7.25 ---91.62
11/15/23 7.72 ---91.15 Before AFVR
11/15/23 7.73 ---91.14 After AFVR
09/30/20 7.93 0.12 92.47
05/26/21 9.10 0.45 91.59
02/14/22 NM NM NM FP observed in bailer
08/01/22 8.69 0.02 91.63 Before MMPE
08/05/22 8.79 ---91.51 After MMPE
09/08/22 8.04 ---92.26
03/23/23 8.51 ---91.79
09/06/23 8.70 ---91.60
3
MW-7
99.3709/29/20MW-6 133-13
5.5
09/29/20MW-8
MW-2
15.55.5-15.5
18
100.30133-13
Screened
Interval
(x to y ft.
BGS)
MW-5 8-18
209/29/20
8
11.5 100.001.5 1.5-11.5
3
09/16/92
3-13309/15/92
98.97
Depth to
Water from
Top of Casing
(ft)
Ground
Water
Elevation
(ft.)
100.1309/16/92
99.3013
07/29/92MW-1
TABLE 4
WELL CONSTRUCTION AND GAUGING INFORMATION
SHIELDS EXXON (INCIDENT NO. 2509)
Facility ID # : 00-0-0000020676
Well ID
Date
Installed
(mm/dd/yy)
Date Water
Level
Measured
(mm/dd/yy)
Free Product
Thickness
(ft.)**
Comments
Bottom
of Well
(ft. BGS)
Top of
Casing
Elevation*
(ft.)
Well Casing
Depth
(ft. BGS)
98.87122-12
99.2012.32.3-12.32.309/15/92MW-3
MW-4
Page 1 of 3
Date: 11/30/2023
Screened
Interval
(x to y ft.
BGS)
Depth to
Water from
Top of Casing
(ft)
Ground
Water
Elevation
(ft.)
TABLE 4
WELL CONSTRUCTION AND GAUGING INFORMATION
SHIELDS EXXON (INCIDENT NO. 2509)
Facility ID # : 00-0-0000020676
Well ID
Date
Installed
(mm/dd/yy)
Date Water
Level
Measured
(mm/dd/yy)
Free Product
Thickness
(ft.)**
Comments
Bottom
of Well
(ft. BGS)
Top of
Casing
Elevation*
(ft.)
Well Casing
Depth
(ft. BGS)
05/26/21 8.89 ---91.64
02/14/22 8.36 ---92.17
09/08/22 9.03 ---91.50
03/23/23 8.31 ---92.22
09/06/23 8.89 ---91.64
05/26/21 8.17 ---91.68
02/14/22 8.02 ---91.83
09/08/22 8.37 ---91.48
03/23/23 8.02 ---91.83
09/06/23 8.19 ---91.66
05/26/21 7.69 ---91.90
02/14/22 7.35 ---92.24
09/08/22 7.97 ---91.62
03/23/23 7.32 ---92.27
09/06/23 7.64 ---91.95
05/26/21 9.08 ---91.68
02/14/22 8.61 ---92.15
09/08/22 9.41 0.09 91.43
03/23/23 8.33 ---92.43
09/06/23 ---------NF
03/23/23 7.66 ---91.38
09/06/23 7.80 ---91.24
03/23/23 5.54 ---91.53
09/06/23 6.41 ---90.66
03/23/23 4.91 ---91.52
09/06/23 5.92 ---90.51
03/23/23 0.94 ---91.11
09/06/23 1.15 ---90.90
03/23/23 1.39 ---89.47
09/06/23 1.66 ---89.20
09/10/15 7.85 0.44 91.53
11/30/15 7.21 0.40 92.13
11/29/17 7.64 0.13 91.47
06/05/19 7.90 0.58 91.60
09/30/20 6.75 0.15 92.38
05/26/21 8.30 1.08 91.63
02/14/22 NM NM NM FP observed in bailer
08/01/22 7.65 0.32 91.62 Before MMPE
08/05/22 7.44 0.01 91.57 After MMPE
09/08/22 7.66 0.13 91.45
03/23/23 7.76 0.65 91.80
09/06/23 8.02 0.74 91.41
11/14/23 8.26 0.51 92.11 Before AFVR
11/14/23 7.91 0.09 91.17 After AFVR
02/15/22 7.56 ---92.76
08/01/22 7.69 0.03 92.66 Before MMPE
08/05/22 7.72 ---92.60 After MMPE
09/08/22 7.85 ---92.47
03/23/23 7.50 ---92.82
09/06/23 7.80 ---92.52
11/15/23 8.10 ---92.22 Before AFVR
11/15/23 8.09 ---92.23 After AFVR
02/15/22 7.46 ---92.25
09/08/22 8.02 ---91.69
03/23/23 7.09 ---92.62
09/06/23 7.70 ---92.01
02/01/22 8.47 ---92.04
08/01/22 8.14 0.16 92.51 Before MMPE
08/05/22 8.93 ---91.58 After MMPE
09/08/22 9.02 0.03 91.52
03/23/23 7.94 0.37 92.89
09/06/23 8.46 0.79 92.73
02/15/22 7.43 ---92.56
09/08/22 8.11 ---91.88
03/23/23 7.16 ---92.83
09/06/23 7.45 ---92.54
05/26/21
3
3MW-11
Unknown 12 99.00
99.59
13
100.76133-1305/26/21MW-12
MW-10 05/26/21 99.85
100.53
3
05/26/21MW-9
13
133-133
3-13
3 - 1303/13/23MW-13
MW-14
MW-15
03/13/23
3
3
3-13
97.07
13 96.43
13
13 92.05
99.04
3 - 13
3 - 13
3
03/13/23
03/13/23
MW-16
3
RW-1 Unknown
3
Unknown
90.86133 - 13
3 - 13
MW-17
RW-5 3-13 13
3
3-13
03/13/23
RW-3
RW-4
02/14/22
02/14/22
02/14/22
3
3
13
100.5113
99.99
3-13 13 99.71
3-13
100.3213302/14/22RW-2
Page 2 of 3
Date: 11/30/2023
Screened
Interval
(x to y ft.
BGS)
Depth to
Water from
Top of Casing
(ft)
Ground
Water
Elevation
(ft.)
TABLE 4
WELL CONSTRUCTION AND GAUGING INFORMATION
SHIELDS EXXON (INCIDENT NO. 2509)
Facility ID # : 00-0-0000020676
Well ID
Date
Installed
(mm/dd/yy)
Date Water
Level
Measured
(mm/dd/yy)
Free Product
Thickness
(ft.)**
Comments
Bottom
of Well
(ft. BGS)
Top of
Casing
Elevation*
(ft.)
Well Casing
Depth
(ft. BGS)
03/23/23 10.18 ---89.67
09/06/23 7.42 ---92.43
Notes:
• ** : If free product is present in a well, groundwater elevation calculated by: [Top of Casing Elevation - Depth to Water] +
[free product thickness x 0.8581].
• NF: Well Not Found.
• Top-of-casing elevations are reproduced from the previous consultant's report.
TW-1 03/16/23 3631 - 3631 99.85
• NM: Not Measured.
• ft BGS : feet below ground surface.
• *: Reference point for elevation measurements, assumed elevation 100.00 ft.
Page 3 of 3
Date: 11/30/2023
Method of Measurement:
Well ID
Product Type
(gas, diesel,
etc.)
Date of Recovery
(mm/dd/yy)
Free Product
Recovery
Method*
Casing
Diameter
(inches)
Product
Thickness
before Recovery
(feet)
Product
Thickness after
Recovery
(feet)
Amount of Liquid
Recovered
(gallons)
Amount of
Product
Recovered as
Liquid (gallons)
MW-8 2 NM 0.00
RW-1 4 NM 0.00
MW-8 2 0.02 0.00
RW-1 4 0.32 0.01
RW-2 4 0.03 0.00
RW-4 4 0.16 0.00
RW-1 4 0.74 0.00
RW-4 4 0.79 0.00
RW-1 11/14/23 AFVR 4 0.51 0.09 526.00 0.00
RW-2 11/15/23 AFVR 4 0.00 0.00 482.00 0.00
Notes :
• *: Bailing, Skimming, Aggressive Fluid Vapor Recovery (AFVR), Mobile Multiphase Extraction (MMPE)
• **: No free product was observed during initial gauging event; however, free product entered the well during purging activities.
• Amount of Liquid Recovered (gallons) includes Total liquids (Water and Free Product) as indicated on Disposal Manifest.
• Amount of Product Recovered (in gallons) includes only the volume of free product in the tanker at the end of the event (based on
Disposal Manifest and/or Field Notes).
1.00
TABLE 5
FREE PRODUCT RECOVERY RESULTS
SHIELDS EXXON (INCIDENT NO. 2509)
Facility ID#: 00-0-0000020676
Interface probe at top-of-casing
Gasoline
Hand Bailing
09/06/23
02/14/22
0.001,500.0MMPE08/01/2022 -
08/05/2022
NM14.5
Hand Bailing 1.35
Date: 11/30/2023
MW-8 N/A N/A N/A N/A
RW-1 N/A N/A N/A N/A
MW-8
RW-1
RW-2
RW-4
RW-1 N/A N/A N/A N/A
RW-4 N/A N/A N/A N/A
RW-1 11/14/23 AFVR 1,175.00 93.1 189.90 3.95 526.00 0.00 3.95
RW-2 11/15/23 AFVR 954.00 103.9 218.70 4.09 482.00 0.00 4.09
9.67 2,523.9 1.00 10.67
Notes:
• *: Bailing, Skimming, Aggressive Fluid Vapor Recovery (AFVR), Mobile Multiphase Extraction (MMPE)
• Amount of Vaporized Product (in gallons) is based on Vapor Emissions Summary Sheet, = lbs emitted/6.15
• Amount of Liquid Recovered includes Total liquids (Water and Free Product) as indicated on Disposal Manifest.
• Amount of Product Recovered as Liquid includes only the volume of free product in the tanker at the end of the event (based on Disposal
Manifest and/or Field Notes).
• Total Amount of Product Recovered = Amount of Vaporized Product + Amount of Product Recovered as Liquid
• Total Fluids Removed = Amount of Vaporized Product + Amount of Liquid Recovered
• Information regarding historical free product recovery activities is not available.
• NM = Not Measured
1.00 1.00
TABLE 6
FREE PRODUCT RECOVERY EVENT INFORMATION
SHIELDS EXXON (INCIDENT NO. 2509)
Facility ID #: 00-0-0000020676
Well ID Date (mm/dd/yy)
Product
Recovery
Method*
Average
Effluent
Velocity
(ft/min)
Average
Effluent
Temperature
(°F)
Average
Effluent
Concentration
(ppm)
Summary Total Fluids Removed (in gallons)
Hand Bailing02/14/22
09/06/23 Hand Bailing
Amount of
Vaporized
Product
(gallons)
Amount of
Liquid
Recovered
(gallons)
Amount of
Product
Recovered as
Liquid (gallons)
Total Amount
of Product
Recovered
(gallons)
826.80 1.630787.75
14.5 NM
Total To Date 2,533.52 10.67
Totals
SUMMARY OF FLUID REMOVAL
Total Product Removed (in gallons)
NM
1,500.0MMPE1.63
Current Event 486.09 4.09
08/01/2022 -
08/05/2022 97.84
1.35
Date: 11/30/2023 Facility ID #: 00-0-0000020676
Wells Included
in Event
Product
Recovery
Method*
Date of Event
(mm/dd/yy)
Total Amount of
Free Product plus
Ground Water
Recovered
(gallons)
Cost of Free
Product Recovery
Event
Cost Per Gallon
(total fluids)
Cost Per Gallon of
Free Product
(liquid and vapor)
Comments
MW-8
RW-1
MW-8, RW-1,
RW-2 & RW-4 MMPE 08/01/22 -
08/05/22 1,501.63 $8,194.00 $0.18 $5,026.99 Cost per gallon for the event is based on a total volume
of 1,501.63 gallons of free product and water.
RW-1, RW-4 Hand Bailing 09/06/23 1.35 $255.98 $189.61 $255.98 Cost per gallon for the event is based on a total volume
of 1.35 gallons of free product and water.
RW-1 AFVR 11/14/23 529.95 $3,238.10 $6.11 $819.77 Cost per gallon for the event is based on a total volume
of 529.95 gallons of free product and water.
RW-2 AFVR 11/15/23 486.09 $3,088.70 $6.35 $755.18 Cost per gallon for the event is based on a total volume
of 486.09 gallons of free product and water.
2,533.52 $15,030.96 $5.93
Notes:
• *: Bailing, Skimming, Aggressive Fluid Vapor Recovery (AFVR), Mobile Multiphase Extraction (MMPE)
• Total Amount of Free Product Recovered = Amount of Vaporized Product + Amount of Product Recovered as Liquid
NM02/14/22Hand Bailing
TABLE 7
FREE PRODUCT RECOVERY COST SUMMARY
SHIELDS EXXON (INCIDENT NO. 2509)
TOTAL (to date)
• Cost of Free Product Recovery Event includes supervision, travel, mileage, per diem, subcontractor costs, MMPE sampling, MMPE sampling analytical, report preparation (pre-2015
only) and project management.
Cost per gallon for the event is based on a total volume
of 14.5 gallons of free product and water.$17.53$254.18 14.50
APPENDICES
APPENDIX A
State Correspondence
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3913 Received OCT 17 2023
APPENDIX B
Historical Soil Quality Information and Cross Section Maps
Date: 10/21/2020 Facility ID # : 0-020676
Sample ID
Date
Collected
(mm/dd/yy)
Sample
Depth
(ft-BGS)
50 100
SB-1-4 12/04/19 4 9.7 16.2
SB-1-7 12/04/19 7 651 1,117
SB-1-10 12/04/19 10 107.2 21.5
SB-2-4 12/04/19 4 40.1 303
SB-2-7 12/04/19 7 768.5 409.5
SB-2-10 12/04/19 10 13,231 1,218
SB-3-4 12/04/19 4 28.7 70.1
SB-3-7 12/04/19 7 3,741 2,965
SB-3-10 12/04/19 10 1,440 197.4
SB-4-4 12/04/19 4 275.1 308.6
SB-4-7 12/04/19 7 370.6 106.3
SB-4-10 12/04/19 10 16,680 16,766
SB-5-4 12/04/19 4 <0.58 4.1
SB-5-7 12/04/19 7 762.1 430.4
SB-5-10 12/04/19 10 5.5 <0.58
SB-6-4 12/04/19 4 8.4 10.2
SB-6-7 12/04/19 7 4,777 7,587
SB-6-10 12/04/19 10 <0.56 6.8
SB-7-4 12/04/19 4 <37.1 1,657
SB-7-7 12/04/19 7 873.8 4,758
SB-7-10 12/04/19 10 296.2 32
SB-8-4 12/04/19 4 <1.1 134.7
SB-8-7 12/04/19 7 189.7 479
SB-8-10 12/04/19 10 30 <0.53
SB-9-4 12/04/19 4 <0.58 63
SB-9-7 12/04/19 7 198.4 186.1
SB-9-10 12/04/19 10 <0.51 <0.51
SB-10-4 12/04/19 4 <0.76 <0.76
SB-10-7 12/04/19 7 5,152 4,353
SB-10-10 12/04/19 10 43.5 39.8
SB-11-4 12/04/19 4 4.5 7.5
SB-11-7 12/04/19 7 186.1 292.6
SB-11-10 12/04/19 10 6,127 588.6
SB-12-4 12/04/19 4 <0.52 1.1
RAL (mg/kg)
TABLE 4
SUMMARY OF SOIL SAMPLE ANALYTICAL RESULTS
SHIELDS EXXON (INCIDENT NO. 2509)
Analytical Method UVF
Contaminant of Concern Gasoline-Range TPHDiesel-Range TPH
Date: 10/21/2020 Facility ID # : 0-020676
Sample ID
Date
Collected
(mm/dd/yy)
Sample
Depth
(ft-BGS)
50 100RAL (mg/kg)
TABLE 4
SUMMARY OF SOIL SAMPLE ANALYTICAL RESULTS
SHIELDS EXXON (INCIDENT NO. 2509)
Analytical Method UVF
Contaminant of Concern Gasoline-Range TPHDiesel-Range TPHSB-12-7 12/04/19 7 628 674.6
SB-12-10 12/04/19 10 <0.43 <0.43
SB-13-7 09/30/20 7 0.5 13.8
SB-13-10 09/30/20 10 109 7.3
SB-14-7 09/30/20 7 176.8 125.9
SB-14-10 09/30/20 10 0.4 0.24
SB-15-7 09/30/20 7 1,119 286.8
SB-15-10 09/30/20 10 <0.5 0.4
SB-16-7 09/30/20 7 31.6 10.6
SB-16-10 09/30/20 10 <0.5 0.23
SB-17-7 09/30/20 7 148.3 9
SB-17-10 09/30/20 10 <0.4 1.6
SB-18-7 09/30/20 7 21 8.7
SB-18-10 09/30/20 10 137.5 56.4
SB-19-7 09/30/20 7 <0.4 5.9
SB-19-10 09/30/20 10 66.9 11.9
SB-20-7 09/30/20 7 376 318
SB-20-10 09/30/20 10 <0.5 <0.23
SB-21-7 09/30/20 7 1,243 48.5
SB-21-10 09/30/20 10 3 <0.22
SB-22-7 09/30/20 7 273.6 81.9
SB-22-10 09/30/20 10 63.4 54.3
• RAL: Regulatory Action Level.
• < : Less than the UFV method detection limit .
• Concentrations in bold face type indicate the RALs were
Notes:
• Results reported in mg/kg; samples analyzed onsite by
• ft-BGS: feet below ground surface.
APPENDIX C
AFVR Data and Calculations
Site Name:2509
Extraction Well(s):4
6
Date :11/15/23 Start Time :7:45 End Time :15:45
Frequency
(min)Time Vacuum
(in. of Hg)
Exhaust
Velocity
(ft/min)
Temperature
(°F)
Rel. Humidity
(%)
OVA
(ppm)
0 7:45 27.0 169 57.3 90.1 62.9
15 8:00 20.0 732 74.6 93.7 230.1
30 8:15 20.0 1,400 85.1 100.0 233.8
45 8:30 20.0 884 94.8 100.0 221.1
60 8:45 20.0 782 97.5 100.0 168.6
75 9:00 20.0 803 96.5 100.0 158.9
90 9:15 20.0 956 108.1 100.0 157.6
105 9:30 20.0 946 107.2 100.0 162.3
120 9:45 20.0 1,132 112.1 100.0 221.3
150 10:15 20.0 1,276 110.1 100.0 182.9
180 10:45 20.0 1,078 105.4 100.0 290.7
210 11:15 20.0 1,029 108.5 100.0 209.5
240 11:45 20.0 899 115.2 100.0 255.7
270 12:15 20.0 954 116.6 100.0 176.5
300 12:45 20.0 1,031 113.7 97.5 217.2
330 13:15 20.0 1,033 115.4 94.0 204.7
360 13:45 20.0 1,126 100.5 88.2 177.8
390 14:15 20.0 1,095 114.0 100.0 318.4
420 14:45 20.0 815 117.9 100.0 327.2
450 15:15 20.0 954 116.1 100.0 305.1
480 15:45 20.0 940 115.7 100.0 311.1
Total Fluids Recovered (in gallons) :
Total Product Recovered (in gallons) :
Note: Take all the readings listed below every 15 minutes for the first 2 hours of the AFVR and every
30 minutes thereafter.
1450 cfm @22 in. of HgBlower Specifications For Vacuum Truck (e.g: 2500 cfm @ 24 in. of Hg):
0
AGGRESSIVE FLUID VAPOR RECOVERY EVENT - DATA SHEET
Diameter of Exhaust Stack (inches) :
Eastern Environmental Management
Geological Resources, Inc.
Test Conducted By (AFVR Contractor):
Test Supervised By (Consultant):
482
Shields Exxon Incident Number:
Inner Dia. of Well (inches):RW-2
Page 1 of 2
Site Name:2509
Extraction Well(s):4
6
Date :11/15/23 Start Time :7:45 End Time :15:45
1450 cfm @22 in. of HgBlower Specifications For Vacuum Truck (e.g: 2500 cfm @ 24 in. of Hg):
AGGRESSIVE FLUID VAPOR RECOVERY EVENT - DATA SHEET
Diameter of Exhaust Stack (inches) :
Eastern Environmental Management
Geological Resources, Inc.
Test Conducted By (AFVR Contractor):
Test Supervised By (Consultant):
Shields Exxon Incident Number:
Inner Dia. of Well (inches):RW-2
AFVR Well Obs. Well 1 Obs. Well 2 Obs. Well 3 Obs. Well 4
Well Name RW-2 MW-3 MW-6 MW-7
Diameter (in.)4 2 2 2
Distance from
AFVR Well (ft)0 45 58 37
Frequency
(min)Time RW-2 MW-3 MW-6 MW-7
Pre AFVR 7:30 8.10 8.32 8.24 7.72
60 8:45 8.33 8.28 7.77
120 9:45 8.33 8.30 7.79
180 10:45 8.32 8.30 7.79
240 11:45 8.32 8.30 7.79
300 12:45 8.31 8.31 7.80
360 13:45 8.31 8.31 7.80
420 14:45 8.30 8.31 7.80
480 15:45 8.29 8.31 7.78
Post AFVR 15:30 8.09 8.29 8.31 7.78
Note: Record water levels in Vacuum Well at start and end of AFVR. Record Water Levels in a few
Observation Wells periodically (hourly during event) and at end of event.
Depth to Water Measurements (in feet)
Page 2 of 2
Site Name:2509
Extraction Well(s):2
6
Date:Start Time:End Time :
AIR FLOW CALCULATIONS
Date Time Vacuum
(in. Hg)
Velocity
(ft/min)
Pipe ID
(in.)
Temp
(°F)
Rel Humid
(%)
Water Vapor
(%)
Flow
(DSCFM)
7:45 27.0 169 6 57.3 90.1 0.0092 34
8:00 20.0 732 6 74.6 93.7 0.0176 139
8:15 20.0 1,400 6 85.1 100.0 0.0269 259
8:30 20.0 884 6 94.8 100.0 0.0370 159
8:45 20.0 782 6 97.5 100.0 0.0404 140
9:00 20.0 803 6 96.5 100.0 0.0391 144
9:15 20.0 956 6 108.1 100.0 0.0568 165
9:30 20.0 946 6 107.2 100.0 0.0552 163
9:45 20.0 1,132 6 112.1 100.0 0.0645 192
10:15 20.0 1,276 6 110.1 100.0 0.0605 218
10:45 20.0 1,078 6 105.4 100.0 0.0521 187
11:15 20.0 1,029 6 108.5 100.0 0.0575 177
11:45 20.0 899 6 115.2 100.0 0.0711 151
12:15 20.0 954 6 116.6 100.0 0.0743 159
12:45 20.0 1,031 6 113.7 97.5 0.0661 174
13:15 20.0 1,033 6 115.4 94.0 0.0672 174
13:45 20.0 1,126 6 100.5 88.2 0.0393 200
14:15 20.0 1,095 6 114.0 100.0 0.0684 184
14:45 20.0 815 6 117.9 100.0 0.0774 135
15:15 20.0 954 6 116.1 100.0 0.0731 159
15:45 20.0 940 6 115.7 100.0 0.0722 157
20.3 954 6 103.9 98.3 0.0536 165
NOTES
Qstd = (1-Water Vapor) * velocity * (PI * (diameter/24)^2) * (528°R/(Temp + 460)) (DSCFM)
Vacuum = The level of vacuum being applied should be recorded from the vacuum truck tank (inches of Hg)
Velocity = The rate at which air flows is measured at the blower discharge piping (anemometer or pitot tube)
Pipe ID = The inside diameter of the blower discharge piping (from the vacuum truck)
Temperature = The temperature of the air stream exiting the blower discharge piping (dry bulb temp., in deg.°F)
Relative humidity = The % relative humidity of the air stream exiting the blower discharge piping
Water Vapor in % = Pounds of water per pound of dry air, derived from the Psychrometric chart
(temp Vs relative humidity)
DSCFM = Dry Standard Cubic Feet Per Minute
11/15/23
333Site Elevation (feet):
15:457:4511/15/23
AGGRESSIVE FLUID VAPOR RECOVERY EVENT - CALCULATIONS
Averages
Shields Exxon
Blower Specifications For Vacuum Truck (e.g: 2500 cfm @ 24 in. of Hg):1450 cfm @22 in. of Hg
Test Conducted By (AFVR Contractor):
Test Supervised By (Consultant):
Eastern Environmental Management
Geological Resources, Inc.
Diameter of Exhaust Stack (inches) :
Inner Dia. of Well (inches):RW-2
Incident Number:
Page 1 of 2
Site Name:2509
Extraction Well(s):2
6
Date:Start Time:End Time :
333Site Elevation (feet):
15:457:4511/15/23
AGGRESSIVE FLUID VAPOR RECOVERY EVENT - CALCULATIONS
Shields Exxon
Blower Specifications For Vacuum Truck (e.g: 2500 cfm @ 24 in. of Hg):1450 cfm @22 in. of Hg
Test Conducted By (AFVR Contractor):
Test Supervised By (Consultant):
Eastern Environmental Management
Geological Resources, Inc.
Diameter of Exhaust Stack (inches) :
Inner Dia. of Well (inches):RW-2
Incident Number:
EMISSION CALCULATIONS
Elapsed Time
(min)
Flow
(DSCFM)
PPM
measured
(ppm)
K
(#C-gas)PPMg Cg:m
(mg/dsm^3)
Cg
(lb/dscf)
PMRg
(lb/hr)
PMR
(lb)
0 34 62.9 4 251.6 1,337.96 0.00008353 0.17 0.00
15 139 230.1 4 920.4 4,894.52 0.00030557 2.56 0.64
30 259 233.8 4 935.2 4,973.23 0.00031048 4.83 1.21
45 159 221.1 4 884.4 4,703.08 0.00029361 2.80 0.70
60 140 168.6 4 674.4 3,586.34 0.00022390 1.87 0.47
75 144 158.9 4 635.6 3,380.01 0.00021101 1.82 0.45
90 165 157.6 4 630.4 3,352.36 0.00020929 2.07 0.52
105 163 162.3 4 649.2 3,452.33 0.00021553 2.11 0.53
120 192 221.3 4 885.2 4,707.34 0.00029388 3.38 0.85
150 218 182.9 4 731.6 3,890.52 0.00024289 3.18 1.59
180 187 290.7 4 1,162.8 6,183.56 0.00038604 4.34 2.17
210 177 209.5 4 838.0 4,456.34 0.00027821 2.95 1.48
240 151 255.7 4 1,022.8 5,439.07 0.00033956 3.07 1.53
270 159 176.5 4 706.0 3,754.38 0.00023439 2.23 1.12
300 174 217.2 4 868.8 4,620.12 0.00028843 3.01 1.51
330 174 204.7 4 818.8 4,354.23 0.00027183 2.83 1.42
360 200 177.8 4 711.2 3,782.04 0.00023611 2.83 1.42
390 184 318.4 4 1,273.6 6,772.78 0.00042282 4.67 2.34
420 135 327.2 4 1,308.8 6,959.97 0.00043451 3.52 1.76
450 159 305.1 4 1,220.4 6,489.87 0.00040516 3.87 1.93
480 157 311.1 4 1,244.4 6,617.50 0.00041313 3.89 1.95
Averages 165 218.7 4 874.9 4,652.74 0.00029047 2.95 1.22
Total emissions (gal):4.09 Total emissions (lbs):25.56
NOTES
PPM measured = Actual measurements (ppm) taken with a OVA or TVA at the blower discharge piping
K = Number of carbons in calibration gas: (Methane K = 1, or Propane K = 3, or Hexane K = 6)
PPMg = PPMv, Volumetric concentration as gasoline emission, dry basis at STP
Cg:m = mg/dsm3, mass concentration of gasoline emission
Mg = 128 mg/mg-mole, molecular weight of gasoline (this value may vary depending on contaminant)
K3 = 24.07 dsm^3/1E6 mg-mole, mass to volume conversion factor at STP
Cg = lb/dcsf, mass concentration of gasoline emission, dry basis at STP
PMRg = lb/hr, pollutant mass removal rate of gasoline emission
PMR = pollutant mass removal of gasoline emission over time
EQUATIONS
PPMg = PPM measured * K
Cg:m = PPMg * (Mg / K3)
Cg = Cg:m * 62.43E-09 lb-m^3/mg-ft^3
PMRg = Cg * Qstd * 60 min/hr
PMR = PMRg * ((T2 - T1) / 60)
Total emmissions (gal) = Total emmissions (lbs)/6.25
Page 2 of 2
APPENDIX D
Liquid Disposal Manifest