HomeMy WebLinkAboutWI0400566_Permit (Issuance)_20210315NC 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 individual permit when constructed in accordance
with the rules of 15A 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: March 5 , 2021 PERMIT NO. W 10400566 (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 Issued Date:
A. WELL TYPE TO BE CONSTRUCTED OR OPERATED
(1) X 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) 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
B. STATUS OF WELL OWNER: State Government
Deemed Permitted GW Remediation NOI Rev. 2-17-2020 Page 1
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): NCDEQ, DWM, UST Section, State -Lead Program
Mailing Address: 1636 Mail Service Center
City: Raleigh State: NC Zip Code: 27699-1636 County: Wake
Day Tele No.: 919-707-8166 Cell No.:
EMAIL Address:Herbert.Berger@ncdenr.gov Fax No.: 919-707-8170
D. PROPERTY OWNER(S) (if different than well owner/applicant)
Name and Title: Derek A. Shore
Company Name NA
Mailing Address: 2424 US Highway 21
City: Hamptonville State: NC Zip Code:27020 County: Yadkin
Day Tele No.: 704-5646-3200 Cell No.: 336-466-0520
EMAIL Address: Unknown Fax No.: Unknown
E. PROJECT CONTACT (Typically Environmental Consulting/Engineering Firm)
Name and Title: Al Quarles, Project Manager
Company Name ATC Associates of North Carolina, P.C.
Mailing Address: 7606 Whitehall Executive Center Drive, Suite 800
City: Charlotte State: NC Zip Code: 28273 County: Mecklenburg
Day Tele No.: 704-529-3200 Cell No.: 803-984-6764
EMAIL Address: Al.Quarles@atcgs.com Fax No.:
F. PHYSICAL LOCATION OF WELL SITE
(1) Facility Name & Address: TF- 15063, 2425 US Highway 21
City: Hamptonville County: Yadkin Zip Code: 27020
(2) Geographic Coordinates: Latitude**: 36.097888
Longitude**: -80.7602855
Reference Datum: Sparge Well Accuracy:
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: NA square feet
Land surface area of inj. well network: NA square feet (< 10,000 ft2 for small-scale injections)
Percent of contaminant plume area to be treated: NA (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.
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:
Air sparging (using air compressor) connected to one well (AS-1) during 96-hour Mobile Multi -Phase
Extraction Event (MMPE) using two wells MW-1 and RW-1. Approximately 5 cfm per well for approximately
96 hours. Scheduled for March 15 to March 19, 2021.
J. WELL CONSTRUCTION DATA
(1) No. of injection wells: 1 (AS-1, see GW- 1) Proposed Existing
(provide NC Well Construction Record (GW-1) for each well)
(2) Appx. injection depths (BLS):
(3) For Proposed wells or Existing wells not having GW-1 s, 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 injectants approved by the epidemiology section of the NC Division of Public Health, Department
of Health and Human Services can be injected. Approved injectants can be found online at
http: //deq.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 different additive. However, please
note it may take 3 months or longer. If no injectants are to be used use N/A.
Injectant: Compressed air Total Amt. to be injected (gal)/event:-5 cfm x 96 hours = 28,800 cubic feet
Injectant: Total Amt. to be injected (gal)/event:
Total Amt. to be injected (gal/event): 28,800 cubic feet
No. of separate injection events: Total Amt. to be injected (gal):
Source of Water (if applicable): NA
Deemed Permitted GW Remediation NOI Rev. 2-17-2020 Page 3
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.
Sampling of wells AS-1, MW-1, MW-3, MW-5, MW-12, and RW-1 approximately two weeks subsequent to
MMPE event.
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 15A NCAC 02C 0200 Rules."
Signatp'%e of Applicant
Al Quarles, P.G., with ATC, as agent for and under contract with NCDEQ
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
(15A NCAC 02C .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 Signed Agreement Derek A Shore, Property Owner
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: (919) 707-9000
Deemed Permitted GW Remediation NOI Rev. 2-17-2020 Page 4
Herb Berger
Hydrogeologist
DWM UST Section
1637 Mail Service Ctr
Raleigh, NC 27699-1637
RE: Access Agreement
Former Williams Grocery
2425 U.S. Hwy 21
Hamptonville, Yadkin County, North Carolina
Incident #15063
Dear Mr. Berger:
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 Environment and Natural Resources (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.
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 landowner.
I/We agree not to interfere with, remove, or in any way damage the Department's well(s) or
its contractor's well(s) and equipment during the investigation.
Sincerely,
Signature
ler,
Type/Print Name of Owner or Agent
-s3 CF `f (Du) - vs- p_o (C) 70 LI szf Co 3 a-v v ( )
Phone Number
3-4 aq Us a i N-wki
Address
4QL2vrwI'f/e `JC 01-70av
City/State/Zip Code
y(2-0 Flo
Date
WELL CONSTRUCTION RECORD
Thv &xrn can b: used for siopk pr muipk was
1. w'd1 Contractor Information:
Stefan Smith
Wc11 C'premoor Name
3576A
N(' w'c11 Coonttctor C. rti1ri:alton Nusnbcr
SAEDACCO Inc
('tsngralo rf:antt
2. Well ('onsinietion Permit ft:
fro all appto rsfrlr uric prvm.h fir. (-ox,ir Yvette. Varium'r J/ &1 crl err- r
3. Well Use (check well owl:
Water Supply Well:
OAgricultural
fGeothemtal tiieating•'oolinr Supply(
O IndustrialtCommercial
0Irrigation
DMunicipai.rPublic
DResidetuial Water Supply (single)
ORcsidenttal Water Supply (shared)
Non -Water SupplyWell:
❑Monitoring
injection Welt:
0Aquifer Recharge
DAquifer Storage and Recover'
0Aquifer Text
OEwperimcniil Tcchnok
DGeothemial (Closed Loop)
❑Geothemtal (HeatinglC'oohng Return)
4, Date Wel(s) Completed: 5/31/2016
ta. WCI Location:
Former Williams Grocery
FacOit now err Name
DRecmery
Cl("lroundt:lter ReinedtaIion
❑Salinity Barrier
❑Stormwater Drsinagc
O5tlbsidcucc Control
C)Tracer
XOtlter (explain under 021 Retnad.$)
Well In/ AS1
Fact1it, tifapplicabki
2401 US Highway 21, Hamptonville, NC, 27020
Ph•. steal Address. Cu,. and Ztp
Yadkin
Contgs
Farce) Itknitfr.wiort No (PIN)
5b. Latitude and Longitude in dcgr•ecseminutcs/aeconds or decimal degrees:
(if we() ricld. out latiotq; N sunk Ciit1
36.0657 -80.4413
6. L% tare) the wetl(s): ZlPermartent or 0Temporary
7. la this a repair to an existing well: 31'es or SE No
tf shls .; r. rrlxtlr. fill nut Gyrwtr well r,Jras:nit rfr.n iltfOrle tri.stt.e,,1 r.zpi.rtn rh.• rtw1Nrr• elf rhr
repair und,,- n221 ere aria srr'tiaM ar ran Ow bark of this form.
S. Number of wells constructed: 1
for maluple urjr1'reon .a form -wale', urrp1l writs ONLY wwh rill srnl e e t:snourrion tc.0 ran
.satmut acre farm.
9. Total well depth bekm land surface. 45 (ft.l
1'or trrakrjs& wrfls ltat all dahrks if rfiifeteor lrtnmplr- it OM)' asd 2t1tFor)
10. Static water Level below' alp of easing: (ft.)
I; nuke kart a ahorr encase We "4
11. Borehole diameter: 8 (in.)
12, Well coostrwcd.j method: HSA
Ii.e. anfer. roses,. cable direct tech ex i
FOR WATER SUPPLY' WELLS ONLY:
13a. Yield (,;pat) Method (dust:
13b. Disinfection type:_.---_ _.-_.------__ _-- Amount:
05
For Irecrnil U-s ONl N'
st.WATER S
PROM
10 1 ises(amrnos
i 37 ft.
45 ft. I Silt
11.
fl.
1S. OUTER
CASING fbennitivalted wag (*_i._NEA#g
FROM
TO
DIAMETER
THWKINESS MATTRIAI..
0 ft.
40 ft.
2 hi.
rabic)
40 PVC
Id: MTilfEM
Cd$134k OR .. r , _ -_-
..:
roost
TO
DIAMETER
Tliil 3 LSS
M.ATtRi.AL
h.
n.
N.
ft.
lie.
17rSfittlik
FROM
TO
DIAMETER
StA f SIP:
THICKN 311 t MATY.RI Al,
40 h.
45 h.
2 k
010
40 i PVC
ft.
ft.
is
18. CtROOrr
FROM
TO
MATERUI.
EMPLACEMENT METRO4 8 AMOUNT
1 ft.
36 ft.
r
Portland/bentonite
f .
ft.
ft. f
39. WiThiciltAVEL PAM
Of misilicahlej
mom
TO
MAITRIAL
FMPt.ACEVENTMfTNO4
2
38 R.
45 ft.
Sand
ft
H.
2110111111439M.LCIOi
adage* sinif eersat9)
FROM
TO
DESCRIPTION Lootrr.1(ati esa.rsn'twl,Dpe.prateline.ea.)
Silt
0 ft.
45 ft.
ft.
1t
r1.
ft.
R.
h.
ft.
n.
R.
h.
ft.
ft.
-
a1. tsttaA>
S
2 foot bentonite seal from 36 to 38'
22. Certification:
5i*sm' of Cc . tcd w'etl Coon:mot'
5/24/2016
Dale
!h signmk Mris J*»n. 1 hr rir certify that the nr1Ns! wax (wrrr) cvrtrtnxrtrl1 rn acveaslanrr
n irh 15A NCAC 02C n100 or 1 CA NC AC ()2( 0200 Weft Crsnottn'n,-a Scood srds ,0WI Met o
(-(Ircerf this wore, ha.+ hero provoke! or rhr urn owner.
23. Site diagram or additional well details:
You may ttse die back of this page to proside additional well site details 0r well
construction details. You DIM' also attach additional pages if necessary .
SIIBNi1TfAL INSTUiCTJONS
24a. For All Wells: Submit this fort within 311 days of completion of well
construction to the follrntita3:
Dh-ision of Water Resources, Information Processing Unit.
1617 Mail Service Center, Raleigh. NC 27699-1617
24b. For Iniectio9 Weill ONLY: In addition to sending the form to the address in
24aabove. also submit a copy of this form within '10 days of completion of well
construction to the following.
Dh•tskot of Water Resources, Underground Injection Control Progtarn,
1636 Mali Service Center. Raklgb. NC 27699-1636
2.4e. For Water Supply & injection Welb:
Also submit one copy' of this form within 10 days of completion of
well construction to the county health department of the county when
constructed
Forts CzW-I
Norm Combos Department of Fan traturscsu and Natural Resource - Un sou of Water Resbu rters
Rc (sed August 24)13
COMPLETION REPORT OF WELL No. AS-1
Sheet 1 of 1
ID
0
0
0-
0-
0
a
0
0
uJ
LU
0
0
0)
J
J
W
Z
0
0
2
O
PROJECT: Williams Grocery
PROJECT NO: 4305-14-239B
PROJECT LOCATION: Hamptonville, North Carolina
DRILLING CONTRACTOR:
DRILLING METHOD: 41/" H.S.A.
DATE COMPLETED: 5/31/16
WATER LEVEL:
LATITUDE:
LONGITUDE:
TOP OF CASING ELEVATION:
DATUM:
LOGGED BY:
Darren Cox
STRATA
WELL
DETAILS
DEPTH
(ft.)
LEGEND
ELEVATION
(ft.)
WELL CONSTRUCTION DETAILS
DESCRIPTION
SYMBOL
DEPTH
(ft.)
,'
4'
�i
/
i
/'
4.
0.00
GS
PROTECTIVE
Diameter:
RISER
Diameter:
GROUT
SEAL
FILTERPACK
SCREEN
Diameter:
LEGEND
■
�
7i
ISM
1
CASING
Type:
Interval:
CASING
2"
Type: PVC
Interval: 0-45'
Type: Portland Cement
Interval: 0-36'
Type: Bentonite
Interval: 36'-38'
Type: #2 sand
Interval: 38'-45'
2"
Type: 0.010 PVC
Interval: 40'-45'
FILTER PACK TOC TOP OF CASING
BENTONITE GS GROUND SURFACE
BS BENTONITE SEAL
CEMENT GROUT BOC BASE OF OUTER CASING
TSC TOP OF SCREEN
CUTTINGS / BACKFILL BSC BOTTOM OF SCREEN
STATIC WATER LEVEL TD TOTAL DEPTH
CG CEMENT GROUT
'
T 0
36.00
38.00
45.00
SILTY CLAY
1 tannish red
GRAVELLY SILT_
%
SILTY CLAY
red
10
SILT
brownish tan, petroleum
odor
15
-
_
20
-
-
-25
_
SILT
brown, petroleum odor
stong
30
-
SILT
brown, wet, petroleum
odor
35
-40
-
-
-
S&IVIE COMPLETION REPORT OF
WELL No. AS-1
ENGINEERING • TESTING Sheet 1 of 1
ENVIRONMENTAL SERVICES
EXPLANATION
0 200 400
800
WATER SUPPLY WELL LOCATION
APPROXIMATE SCALE IN FEET
TITLE FIGURE 2
WATER SUPPLY WELL LOCATION MAP
WILLIAMS GROCERY - NCDEQ INCIDENT #15063
2425 US HIGHWAY 21
HAMPTONVILLE, YADKIN COUNTY, NORTH CAROLINA
ATC
ASSOCIATES OF NORTH CAROLINA, P.C.
Charlotte, North Carolina 28273 (704) 529-3200 FAX (704) 529-3272
CAD FILE
1 5063_SM
TYPE CODE
PREP. BY
AD
REV. BY
AQ
SCALE
AS SHOWN
DATE
6.5.19
PROJECT NO.
SLP1 506302
4J\\)
-<O
APARTMENTS
FORMER USTs
v
\ ..,�
,ice FORMER <,»
WILLIAMS s�
\GROCERY ,/ <'
• •
476.82
476.44
Notes:
1. Groundwater levels measured 02/12/20.
2. Dashed lines indicate areas of less certainty.
0
30
60
PETTY ROAV
•
•
•
♦
♦
•
•
476.85
MW :i� 476.41N4k
`
476.83
120
APPROXIMATE SCALE IN FEET
1
W-1
478.50
475.76
A. 476.21
MW-5
475.84
EXI'LANA I ION
MONITORING WELL LOCATION
AIR SPARGE WELL LOCATION
GROUNDWATER ELEVATION (AT WELL)
GROUNDWATER CONTOUR LINE
GROUNDWATER FLOW DIRECTION
TITLE FIGURE 4
GROUNDWATER ELEVATION CONTOUR MAP
WILLIAMS GROCERY — NCDEQ INCIDENT #15063
2425 US HIGHWAY 21
HAMPTONVILLE, YADKIN COUNTY, NORTH CAROLINA
ATC
ASSOCIATES OF NORTH CAROLINA, P.C.
Charlotte, North Carolina 28273 (704) 529-3200 FAX (704) 529-3272
CAD FILE
TYPE CODE
PREP. BY
LB
REV. BY
NF
SCALE
AS SHOWN
DATE
02/28/2020
PROJECT NO.
SLP1506303
Constituent of Concern
Benzene
Toluene
Ethyl benzene
Xylene (Total)
Methyl-tert-butyl ether
Naphthalene
1,2-Dibromoethane (EDB)
1,2-Dichloroethane
1,2,4-Tri methyl benzene
1,3,5-Tri methyl benzene
Di isopropyl ether
Styrene
n-Propylbenzene
tert-Amyl Alcohol
tent -Butyl Alcohol
Legend
2L standards
GCLStandards
5000
260000
84500
85500
20000
6000
50
400
28500
25000
70000
70000
30000
40000
10000
PETTY ROA
FORMER UST !1 1''MW
0+.
I RW-1
Standard Method 6200-VOCs ug/L
Benzene
1200
Methyl-tert-butyl ether
57.9
Naphthalene
20.1
1,2-Dichloroethane
74.9
tert-Amyl Alcohol
2210
Standard Method 6200-VOCsug/L
Benzene
MW -4
No VOC Concentrations Detected
��v<� i)
,/" FORMER <�>
WILLIAMS i
� GROCERY �i� <� >
•
•
•\ / �.
i�
MW-2
MW-4
Notes:
1. Groundwater samples collected on
02/13/2020
2. Underlined and italicized values exceed the
Gross Contamination Levels.
3. Concentrations exceeding the 2L Standards
are shown.
0
30
60
FO1RM
RESI
MW-1
MW-6
STs cy�
Standard Method 6200-VOCs ug/L
Benzene
Toluene
Ethylbenzene
Xylene (Total)
Methyl-tert-butyl ether
Naphthalene
1,2-Dibromoethane (EDB)
1,2-Dichloroethane
19500
26400
2000
15300
36500
710
1130
2280
1,2,4-Trimethylbenzene
2260
1, 3, 5-Trimethyl benz ene
558
Diisopropyl ether
590
n-Propylbenzene
167
tert-Amyl Alcohol
59600
tert-Butyl Alcohol
286000
120
APPROXIMATE SCALE IN FEET
MW-6
No VOC Concentrations Detected
MW-5
Standard Method 6200-VOCsug/L
Benzene
50.3
1,2-Dichloroethane
15.1
tert-Amyl Alcohol
137
MW-5
MW-3
Standard Method 6200-VO
Cs ug/L
Benzene
14200
Toluene
Ethylbenzene
Xylene (Total)
Methyl-tert-butyl ether
Naphthalene
1,2-Dibromoethane (EDB)
1,2-Dichloroethane
1,2,4-Trimethylbenzene
1, 3, 5-Trimethylbenzene
Styrene
n-Propylbenzene
34600
2940
19600
121J
1030
716
201
3560
942
88.9J
361
AL
MW-12
No VOC Concentrations Detected
MW-12
EXPLANATION
MONITORING WELL LOCATION
AIR SPARGE WELL LOCATION
TITLE FIGURE 5
CONTAMINANTS OF CONCERN MAP
WILLIAMS GROCERY — NCDEQ INCIDENT #15063
2425 US HIGHWAY 21
HAMPTONVILLE, YADKIN COUNTY, NORTH CAROLINA
ATC
ASSOCIATES OF NORTH CAROLINA, P.C.
Charlotte, North Carolina 28273 (704) 529-3200 FAX (704) 529-3272
CAD FILE
TYPE CODE
LB
REV BY
NF
SCALE
AS SHOWN
02/28/2020
PROJECT NO.
SLP1 506303
\\"\//
,,&
%FORMER
!► WILLIAMS
GROCERY
0\ \ //i
\\ \ 16.1
M W-2
MW-4
<0.24
Notes:
1. Groundwater samples taken 02/12/20.
2. Dashed lines indicate areas of less certainty.
MW-6
<0.24
D7
MW-12
•
i
RESI
0
50
100
APPROXIMATE SCALE IN FEET
<0.50
EXPLANATION
MONITORING WELL LOCATION
AIR SPARGE WELL LOCATION
BENZENE CONCENTRATION (AT WELL)
BENZENE ISOCONCENTRATION LINE
TITLE FIGURE 6
BENZENE ISOCONCENTRATION CONTOUR MAP
WILLIAMS GROCERY - NCDEQ INCIDENT #15063
2425 US HIGHWAY 21
HAMPTONVILLE, YADKIN COUNTY, NORTH CAROLINA
ATC
ASSOCIATES OF NORTH CAROLINA, P.C.
Charlotte, North Carolina 28273 (704) 529-3200 FAX (704) 529-3272
CAD FILE
TYPE CODE
PREP. BY
LB
REV. BY
NF
SCALE
AS SHOWN
DATE
04/21/2020
PROJECT NO.
SLP1 506303
12MWf # 74.9
201 i <'">>
t
/ \'�\\„/
1// \
/ r1 \\ <\ />
/ 1 \ n"
// FORMER <y>�>
!/ WILLIAMS " ..
\\ GROCERY / \>
\ // /
•
\ //
\ /
MW-2
-O MW-4
MW-12
<0.26
Notes:
1. Groundwater samples taken 02/12/20.
2. Dashed lines indicate areas of less certainty.
0
50
100
APPROXIMATE SCALE IN FEET
EXPLANATION
▪ MONITORING WELL LOCATION
▪ AIR SPARGE WELL LOCATION
<0.50 1,2-DICHLOROETANE CONCENTRATION (AT WELL)
1,2-DICHLOROETHANE ISOCONCENTRATION LINE
TITLE FIGURE 7
1,2—DICHLOROETHANE ISOCONCENTRATION CONTOUR MAP
WILLIAMS GROCERY NCDEQ INCIDENT #15063
2425 US HIGHWAY 21
HAMPTONVILLE, YADKIN COUNTY, NORTH CAROLINA
ATC
ASSOCIATES OF NORTH CAROLINA, P.C.
Charlotte, North Carolina 28273 (704) 529-3200 FAX (704) 529-3272
CAD FILE
TYPE CODE
PREP. BY
LB
REV. BY
NE
SCALE
AS SHOWN
DATE
04/21/2020
PROJECT NO.
SLP1506303