WI0300512_Notification of Intent (NOI) – GW Remediation_20240118

1044 Washington Street
ATLIN Raleigh, 25
8
(919) 38-2872875
Engineers and Scientists
www.CatlinUSA.com
January 15, 2024
NCDEQ, DWR, UIC Program RECEIVED
1636 Mail Service Center
Raleigh, NC 27699-1636
}AN 18 2024'
Re: Best Stop#2 NC DEQ/DW;l
10014 Lancaster Highway, Waxhaw, NC 28173 111%central otwce
NCDEQ Incident No. 27776
CATLIN Project No. 223076
CATLIN Engineers and Scientists (CATLIN) is pleased to provide the attached Notification of
Intent(NOI)to Construct or Operate Injection Wells for the above referenced site, which is part of
the NCDEQ State Lead Program. The NOI is for the injection of Cool-Ox to treat soil, light-non
aqueous phase liquids (LNAPL) and dissolved petroleum contamination in the source area of the
contaminant plume and is scheduled for February 5, 2024.
If you have any questions or need any additional information, please contact me at (984) 222-
1214
Sincerely,
Cap
Sean O'Neil, PE
Contract Manager
ENVIRONMENTAL CIVIL GEOTECHNICAL
Wilmington, NC I Raleigh, NCI Washington, NC I Atlanta, GA I Charleston,SC

NC Department of Environmental Quality—Division of Water Resources (DWR)
NOTIFICATION OF INTENT (NOI) TO CONSTRUCT OR OPERATE INJECTION WELLS
The following are `permitted by rule"and do not require an individualpermit when constructed in accordance
with the rules of ISA NCAC 02C.0200(NOTE: This form must be received at least 14 DAYS prior to injection)
AQUIFER TEST WELLS(15A NCAC 02C.0220)
These wells are used to inject uncontaminated fluid into an aquifer to determine aquifer hydraulic characteristics.
IN SITU REMEDIATION(15A NCAC 02C.0225) or TRACER WELLS(15A NCAC 02C.0229):
1) Passive Injection Systems - In-well delivery systems to diffuse injectants into the subsurface. Examples include
ORC socks,iSOC systems,and other gas infusion methods(Note: Injection Event Records(IER)do not need to be
submitted for replacement of each sock used in ORC systems).
2) Small-Scale Injection Operations—Injection wells located within a land surface area not to exceed 10,000
square feet for the purpose of soil or groundwater remediation or tracer tests. An individual permit shall be required
for test or treatment areas exceeding 10,000 square feet.
3) Pilot Tests - Preliminary studies conducted for the purpose of evaluating the technical feasibility of a
remediation strategy in order to develop a full scale remediation plan for future implementation,and where the
surface area of the injection zone wells is located within an area that does not exceed five percent of the land surface
above the known extent of groundwater contamination. An individual permit shall be required to conduct more
than one pilot test on any separate groundwater contaminant plume.
4) Air Injection Wells - Used to inject ambient air to enhance in-situ treatment of soil or groundwater.
5) In-Situ Thermal Wells(IST)—Used to `heat' contaminated groundwater to enhance remediation.
Print Clearly or Type Information. Illegible Submittals Will Be Returned as Incomplete.
DATE: January 1515 12024 PERMIT NO. W10300512 (to be filled in by DWR)
NOTE-If this NOI is being submitted as notification of a modification of a previously issued NOI for this site(e.g.,
different injection wells,plume, additives, etc.)and still meets the deemed permitted by rule criteria,provide the
previously assigned permit tracking number and any needed relevant information to assess and approve injection:
Permit No.WI W 10300512 Issued Date: 01/18/2024
A. WELL TYPE TO BE CONSTRUCTED OR OPERATED
(1) Air Injection Well....................................... Complete sections B through F,J,M
(2) Aquifer Test Well.......................................Complete sections B through F,J,M
(3) Passive Injection System...............................Complete sections B through F,H-M
(4) X Small-Scale Injection Operation...... ...............Complete sections B through M
(5) Pilot Test................................................. Complete sections B through M
(6) Tracer Injection Well...................................Complete sections B through M
(7) In-Situ Thermal(IST)Well........................... Complete sections B through M
RECEIVED
B. STATUS OF WELL OWNER: State Government
JAN 18 2024
Deemed Permitted GW Remediation NOI Rev.2-17-2020 NC DEQ/DWR Page I
Central r"r*

C. WELL OWNER(S) — State name of Business/Agency, and Name and Title of person delegated authority to
sign on behalf of the business or agency:
Name(s): North Carolina Dept. of Environmental Quali —Underground Storage Tank/State Lead Program
Mailing Address: 3800 Barrett Drive
City: Raleigh State:_NC_Zip Code: 27609 County:Wake
Day Tele No.: 919-323-7443 Cell No.:
EMAIL Address:[e-mail] Fax No.:
D. PROPERTY OWNER(S)(if different than well owner/applicant)
Name and Title: Pam Hinson
Company Name Hinson&Company,Inc.
Mailing Address: PO Drawer 428,
City: Monroe State: NC Zip Code: 28111 County:Union
Day Tele No.: 704-289-3617 Cell No.:
EMAIL Address: Fax No.:
E. PROJECT CONTACT(Typically Environmental Consulting/Engineering Firm)
Name and Title: Sean O'Neil,PE Contract Manager
Company Name CATLIN Engineers and Scientists
Mailing Address: 1044 Washington Street
City: Raleigh State: NC Zip Code: 27605 County:Wake
Day Tele No.: 984-222-1214 Cell No.: 919-539-4403
EMAIL Address:sean.oneil(&catlinusa.com Fax No.:
F. PHYSICAL LOCATION OF WELL SITE
(1) Facility Name&Address: Best Stop 2
10014 Lancaster Highway
City:Waxhaw County:Union Zip Code: 28173
(2) Geographic Coordinates: Latitude": "or 34 0.83685
Longitude": if or-80 1.72816
Reference Datum:NAD83 Accuracy:+/-5 feet
Method of Collection: Google Earth
"FOR AIR INJECTION AND AQUIFER TEST WELLS ONLY: A FACILITY SITE MAP WITH PROPERTY
BOUNDARIES MAY BE SUBMITTED IN LIEU OF GEOGRAPHIC COORDINATES.
G. TREATMENT AREA
Land surface area of contaminant plume: 25,000 square feet
Land surface area of inj.well network: 1,400 square feet(< 10,000 ft2 for small-scale injections)
Percent of contaminant plume area to be treated: 5.6 (must be<5%of plume for pilot test injections)
Deemed Permitted GW Remediation NOI Rev.2-17-2020 Page 2

H. INJECTION ZONE MAPS—Attach the following to the notification.
(1) Contaminant plume map(s) with isoconcentration lines that show the horizontal extent of the
contaminant plume in soil and groundwater, existing and proposed monitoring wells, and existing and
proposed injection wells;and
(2) Cross-section(s)to the known or projected depth of contamination that show the horizontal and vertical
extent of the contaminant plume in soil and groundwater, changes in lithology, existing and proposed
monitoring wells,and existing and proposed injection wells.
(3) Potentiometric surface map(s)indicating the rate and direction of groundwater movement,plus existing
and proposed wells.
I. DESCRIPTION OF PROPOSED INJECTION ACTIVITIES AT THE SITE — Provide a brief narrative
regarding the cause of the contamination,and purpose, scope, goals of the proposed injection activity:
Cool-Ox injection to treat soil,residual LNAPL and dissolved phase concentrations associated with the former
UST system. Injection will consist of 39 temporary DPT injection points injection between 29 and 45 feet BLS.
J. WELL CONSTRUCTION DATA
(1) No.of injection wells: 39 Proposed Existing(provide NC Well
Construction Record(GW-1)for each well)
(2) Appx. injection depths(BLS):_29 to 45 feet BLS
(3) For Proposed wells or Existing wells not having GW-1s,provide well construction details for each
injection well in a diagram or table format. A single diagram or line in a table can be used for
multiple wells with the same construction details. Well construction details shall include the
following(indicate if construction is proposed or as-built):
(a) Well type as permanent,Geoprobe/DPT,or subsurface distribution infiltration gallery
(b) Depth below land surface of casing, each grout type and depth,screen,and sand pack
(c) Well contractor name and certification number
K. INJECTION SUMMARY
NOTE: Only iniectants approved by the gpidemiolo,u section of the NC Division ofPublic Health,Department
of Health and Human Services can be injected. Approved iniectants can be found online at
hllp:Hdeg.nc.gov/about/divisions/water-resources/water-resources-permits/wastewater-branch/ground-water-
protection/ground-water-approved-injectants. All other substances must be reviewed by the DHHS prior to use.
Contact the UIC Program for more info if you wish to get approval for a deferent additive. However,please
note it may take 3 months or lonzer. If no iniectants are to be used use N/A.
Injectant: Cool-Ox Total Amt. to be injected(gal)/event: 4978
Injectant: Total Amt. to be injected(gal)/event:
Injectant: Total Amt. to be injected(gal)/event:
Injectant: Total Amt. to be injected(gal)/event:
Deemed Permitted GW Remediation NOI Rev.2-17-2020 Page 3

Injectant: Total Amt. to be injected(gal)/event:
Total Amt.to be injected(gal/event): 4978
No.of separate injection events:1 Total Amt.to be injected (gal): 4978
Source of Water(if applicable): On-Site water supply well
L. MONITORING PLAN—Describe below or in separate attachment a monitoring plan to be used to determine
if violations of groundwater quality standards specified in Subchapter 02L result from the injection activity.
Post injection groundwater gauging and monitoring will be conducted approximately one month after injection
and on a quarterly basis thereafter.
M. SIGNATURE OF APPLICANT AND PROPERTY OWNER
Well Owner/Applicant: `I hereby certify, under penalty of law, that I am familiar with the information
submitted in this document and all attachments thereto and that, based on my inquiry of those individuals
immediately responsible for obtaining said information, I believe that the information is true, accurate and
complete. I am aware that there are significant penalties, including the possibility of fines and imprisonment,
for submitting false information. I agree to construct, operate, maintain, repair, and if applicable, abandon the
injection well and all related appurtenances in accordance with the 1 SA NCAC 02C 0200 Rules."
Sean O'Neil,PE/CATLIN Engineers Project Manager(On Behalf of
NCDE
Signature of Applicant Print or Type Full Name and Title
Property Owner(if the property is not owned by the Well Owner/Applicant):
"As owner of the property on which the injection well(s)are to be constructed and operated,I hereby consent to
allow the applicant to construct each injection well as outlined in this application and agree that it shall be the
responsibility of the applicant to ensure that the injection well(s) conform to the Well Construction Standards
(I SA NCAC 02C C.0200)."
"Owner"means any person who holds the fee or other property rights in the well being constructed.A well
is real property and its construction on land shall be deemed to vest ownership in the land owner, in the
absence of contrary agreement in writing.
See Attached Access Agreement
Signature*of Property Owner(if different from applicant) Print or Type Full Name and Title
*An access agreement between the applicant and property owner may be submitted in lieu of a signature on this form.
Please send 1 (one)hard color copy of this NOI along with a copy on an attached CD or Flash Drive at least
two(2)weeks prior to injection to:
DWR—UIC Program
1636 Mail Service Center
Raleigh,NC 27699-1636
Telephone: [phone]
Deemed Permitted GW Remediation NOI Rev.2-17-2020 Page 4

ATTACHMENT H
INJECTION ZONE DETAILS

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Recovery Well
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0 12.5 25'
Best Stop 2 AST Environmental
1 10014 Lancaster Highway 1567 CF Pours Drive
Waxhaw,North Carolina Site Plan Harrisonburg,Virginia
NCDEQ Incident#27776 www.astenv.com A
Figure ENVIRONMENTAL,INC.

1
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4,800
4,600
4,400 MW7R
4,200 Legend
4,000
3,800
_ n Monitoring Well
3,600
3,400
3,200 * Recovery Well
3,000 M W-4
2 800 OO RDC Soil Boring
2,600
2,400
2,200
2,000
1,800
1,600
1,400
1,200
1,000
800 0 12.5 25'
600
400
200
0
Best Stop 2 AST Environmental
2 10014 Lancaster Highway Benzene Isoconcentrations in Groundwater 1567 CF Pours Drive
Waxhaw,North Carolina Harrisonburg,Virginia
NCDEo Incident#27776 Interpolated from data collected during the May 2023 RDC sampling event www.astenv.com AI
Figure ENVIRONMENTAL,INC.

1
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1,450
1,400
1,350
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1,200
1,150
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1,050
1,000
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sso
s00 MW-4
350 OO RDC Soil Boring
am
750
700
650
600
550
500
450
400
350
300
250
200 0 12.5 25'
150
100
50
0
Best Stop 2 AST Environmental
3 10014 Lancaster Highway Benzene Isoconcentrations in Soil 1567 CF Pours Drive
Waxhaw,North Carolina Harrisonburg,Virginia
NCDEo Incident#27776 Interpolated from data collected during the May 2023 RDC sampling event www.astenv.com ��.
Figure ENVIRONMENTAL,INC.

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1,900 s
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1,500
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1,400
1,300 * Recovery Well
1,200 MW-4 .16
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1,100
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1,000
900
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700
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500
400
300 0 12.5 25'
200
100
0
Best Stop 2 AST Environmental
4 10014 Lancaster Highway TVPH Isoconcentrations in Soil 1567 CF Pours Drive
Waxhaw,North Carolina Harrisonburg,Virginia
NCDEo Incident#27776 Interpolated from data collected during the May 2023 RDC sampling event www.astenv.com AI
Figure ENVIRONMENTAL,INC.

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Legend
Monitoring Well
Recovery Well
_ MW-4
A OO RDC Soil Boring
0 12.5 25'
Best Stop 2 AST Environmental
5 10014 Lancaster Highway 1567 CF Pours Drive
Waxhaw,North Carolina Cross Section Location Harrisonburg,Virginia
NCDEQ Incident#27776 www.astenv.com ��
Figure ENVIRONMENTAL,INC.

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682
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5 17 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100 105 110 115 120 125 130 135 140 145 150 155 160 165 170 175 180 185 190 195 200 205 210 215 220 225 230 235 240 245 250 255 260 255
Best Stop 2 AST Environmental
6 10014 Lancaster Highway Section A-A' Benzene Isoconcentrations in Soil 1567 CF Pours Drive
Waxhaw,North Carolina Harrisonburg,Virginia
NCDEQ Incident#27776 Interpolated from data collected during the May 2023 RDC sampling event www.astenv.com Ate.
Figure T.."ENVIRONMENTAL,INC.

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Best Stop 2 AST Environmental
7 10014 Lancaster Highway Section A-A' TVPH Isoconcentrations in Soil 1567 CF Pours Drive
Waxhaw,North Carolina Harrisonburg,Virginia
NCDEQ Incident#27776 Interpolated from data collected during the May 2023 RDC sampling event www.astenv.com Ate.
Figure T.."ENVIRONMENTAL,INC.

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LEGEND
® Monitoring Well
(Type II)
® Gauged Monitoring
Well (Type II)
Groundwater
(##) Elevation (Feet)
[##] LNAPL Thickness v
(Feet) Z
Groundwater Flow
Direction
—- Groundwater Contour
❑ Approximate Location
of Former UST System
❑ Approximate Location
of Inactive ASTs
Parcel Boundary
�. 1 Source:Esn,MaNO Earths tar Geographies,and the GIS User Comm nit,
1.Well and tank locations were obtained from previous reports
prepared by other consultants and are approximate. 40 20 0 40 80
2.LNAPL=Light Non-Aqueous Phase Liquid
3.The groundwater elevation contour interval is 0.50 feet. Feet
4.*=Top of casing elevation unknown.
PROJECT TITLE FIGURE
BEST STOP 2 GROUNDWATER ELEVATION -
ATLIN 10014 LANCASTER HWY MARCH 21, 2023
CWAXHAW, NC
Engineers and Scientists
INCIDENT N0. I JOB N0. DATE SCALE DRAWN BY/CHECKED BY
27776 223076 MAY 2023 AS SHOWN KMC/BJA

- DeepEarth
�%
� Technologies, Inc.
Treatment Area
1 ,400
O 39 1 Ps*
VTI: 29 to 45 ft-bgs
*IP locations are subject to
change based upon site condi-
tions and obstructions.
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1,200 — -
1,150
1100 MonitoringWell
1,050
1,000
Recovery Well
sso
900
MW-4
s50 RDC Soil Boring
800
750
700
650
600
550 • _
500 1 L IRMO
450 -
400 I.
350
300
250
200 0 12.5 25'
150
100
50
0 —
Best Stop 2 AST Environmental
3 10014 Lancaster Highway Benzene Isoconcentrations in Soil 1567 CF Pours Drive
Waxhaw,North Carolina Harrisonburg,Virginia
N C D E Q I nci dent#27776 Interpolated from data collected during the May 2023 RDC sampling event www.astenv.com A5T
Figure ENVIRONMENTAL.INC.

ATTACHMENT J
WELL CONSTRUCTION DETAILS

Table 1
Well Construction Details for Cool-Ox Injection
Inc. Name and No.: Best Stop 2 - 27776
Number of Injection Points 39
Injection Depth ft BLS 29-45
Well Construction Method DPT Rods
Borehole Diameter in 2.25

ATTACHMENT M
ACCESS AGREEMENT

Sharon Ghiold
DWM UST Section r
11 ;:
1646 Mail Service Center
Raleigh,NC 27699-1646
Dear Ms. Ghiold:
RE: Site Access Agreement
Former Best Stop#2 at Piedmont
10014 Lancaster Hwy
Waxhaw,Union County,North Carolina(MRO)
STF Incident#27776,MO-7050, Facility ID 00-0-08712
Risk/Rank: High H350D
I am/We are the owner(s)of a parcel of property,located at or near the incident in question,
and hereby permit the Department of Environmental Quality(Department)or its contractor to enter
upon said property for the purpose of conducting an investigation of the groundwaters under the
authority of G.S. 143-215.3(a)2.
I am/We are granting permission with the understanding that:
1. The investigation shall be conducted by the UST Section of the Department's Division of Waste
Management or its contractor.
2. The costs of construction and maintenance of the site and access shall be borne by the
Department or its contractor. The Department or its contractor shall protect and prevent damage
to the surrounding lands.
3. Unless otherwise agreed, the Department or its contractor shall have access to the site by the
shortest feasible route to the nearest public road. The Department or its contractor may enter
upon the land at reasonable times and have full right of access during the period of the
investigation.
4. Any claims which may arise against the Department or its contractor shall be governed by Article
31 of Chapter 143 of the North Carolina General Statutes, Tort Claims Against State
Departments and Agencies, and as otherwise provided by law.
5. The information derived from the investigation shall be made available to the owner upon
request and is a public record, in accordance with G.S. 132-1.
6. The activities to be carried out by the Department or its contractor are for the primary benefit
of the Department and of the State of North Carolina. Any benefits accruing to the owner are
incidental. The Department or its contractor is not and shall not be construed to be an agent,
employee, or contractor of the land owner.

Best Stop#2 at Piedmont
STF #27776
Page 2
I/We agree not to interfere with,remove, or any way damage the Department's well(s) or its
contractor's well(s) and equipment during the investigation.
Signature
Type/Print Name of Owner or Agent
—71D a1 -a/l 0
Phone Number
Address
City/State/Zip Code
Date

1044 Washington Street
CATLIN Raleigh, NC 27605
[phone]
Engineers and Scientists
www.CatlinUSA.com
January 15, 2024
NCDEQ, DWR, UIC Program
1636 Mail Service Center
Raleigh, NC 27699-1636
Re: Best Stop #2
10014 Lancaster Highway, Waxhaw, NC 28173
NCDEQ Incident No. 27776
CATLIN Project No. 223076
CATLIN Engineers and Scientists (CATLIN) is pleased to provide the attached Notification of
Intent (NOI) to Construct or Operate Injection Wells for the above referenced site, which is part of
the NCDEQ State Lead Program. The NOI is for the injection of Cool-Ox to treat soil, light-non
aqueous phase liquids (LNAPL) and dissolved petroleum contamination in the source area of the
contaminant plume and is scheduled for February 5, 2024.
If you have any questions or need any additional information, please contact me at (984) 222-
1214
Sincerely,
�..� C)70
Sean O'Neil, PE
Contract Manager
ENVIRONMENTAL CIVIL GEOTECHNICAL
Wilmington, NC I Raleigh, NC I Washington, NC i Atlanta, GA I Charleston, SC