WI0300345_Injection Report_20190204

TREX PROPERTIES LLC
ELT TREX PROPERTIES LLC
1515 DES PERES RD.. STE 300
SAINT LOUIS. MO 63131
314-835-1515 P
314-835-1616 F
February 4, 2019
Mr, Michael Rogers, PG
NCDENR, Underground Injection Control Manager
1636 Mail Service Center
Raleigh, NC 27699-1636
RE: Injection Report
Injection Permit W10300345
Trex Properties, LLC
3114 Cullman Ave.
Charlotte, NC 28206
Dear Mr. Rogers:
As per your request, Trex Properties, LLC (Trex) is providing you one hard copy of the January 2019
Injection Report generated by Innovative Environmental Technologies, Inc.
Trex has tentatively set the week of February 18, 2019 to collect the one -month post injection samples.
Thank you for your assistance during the injection work. If you have any questions do not hesitate to
give me a call at 734.751.2270. RECENED/hICI)F /DWR
Best regards,
David Craig
Senior Project Manager
Enclosure: January 2019 Injection Report
FEB 13 2019
Water Qual,
Reglonal OperaUor,s SGcDon
20190204L - iniection report

/
Routine Monitoring Report Review (RMRR) Checklist
Permit No.: WI0300345
Permittee: Trex
Facility Name: Fonner Tres Facility
Report Name: Jan 2019 Injection Report [NOTE: this is not a RMRR; it is an injection
summary report]
Reviewer.: MR
Date Reviewed: 4/8/19
1. BIMS: Permit Issued date: 7/21/17. Expiration date: 6/30/22. If Expired, check with
Permittee if they want to renew. For Non -Discharge (ND) permit,. if they don't want to
renew, they will have to request rescission.
2. BIMS: Log report in Events Tab. Select-> `Compliance Schedule Met' and enter name
and date of report, and date we received. Also, note that a RMRR was completed and
inserted into report.
Completed: 4/8/19
3. BIMS: For 5I reports- Has Injection Event Report (IER) been received and info entered
into BIMS Yes (Yes or No). If No, check file to see if we have received and
then enter into BIMS. If never received, then request from Consultant and CC Permittee
via email. After receipt of IERs from these parties, enter into BIMS.
For Non -Discharge (ND) reports- Is billing is up to date? N/A (Yes, No, or N/A).
If past due, notify Permittee/Consultant via email, and include contact info for Teresa
Revis to send payment (contact info below).
NC Department of Environmental Quality
Division of Water Resources
Budget Office
Attn: Antoine Pope
1617 Mail Service Center
Raleigh, NC 27699-1617
[e-mail]
[phone]
4. BIMS: Check Wells Tab and see if GW-is/GW-30s (if applicable) have been entered:
Yes (Yes, No, or N/A). If No and well status is still `proposed', then check file
to see if we have received GW-1 s and then enter into BIMS. If not received, then request
from consultant and CC Permittee. After receipt from these parties, enter as -built well
construction into BIMS (change status of well from proposed to active); and well
abandonment data, if applicable.
Continued On Other Side
Page 1 of 2
Rev. 4-8-2019

5. For 5I/In-situ groundwater remediation reports- Do a quick review of report to see if
there are any obvious impacts from injection activities by reading Summary and
Conclusions/Recommendation Section, and monitoring data tables. Compare pre -
injection levels of sulfate, iron; phosphate, etc. to post injection levels and note this
below. If there are no impacts evident, indicate `No impacts from injection evident'.
NOTE: The groundwater quality at the site must be monitored until concentrations meet
pre -injection levels or 2L standards before the permit can eventually be Completed in
BIMS, and a Completion Letter Sent to Permittee.
For Non -Discharge reports- Also check influent and effluent concentrations, most
permits require a minimum 95% reduction in concentrations.
NOTES/COMMENTS:
Rept included info on injection including site map (proposed inj well IW-16 not
installed).
6. When this Monitoring Report Review is complete, securely insert inside cover of
monitoring report and file.
Completed: 4/8/19 (date)
Page 2 of 2 Rev. 4-8-2019

North Carolina Department of Environmental Quality — Division of Water Resources
INJECTION EVENT RECORD (IER)
Permit Number WI0300345
L Permit Information
Trex Properties
Permittee
Trex-Charlotte
Facility Name
3114 Cullman Ave. Charlotte, NC. Mecklenburg Co.
Facility Address (include County)
2. Injection Contractor Information
Innovative Environmental Tech. Inc.
Injection Contractor / Company Name
Street Address: 6071 Easton rd.
Pipersville, PA 18947
City State Zip Code
[phone]
Area code — Phone number
3. Well Information
umbewof--Wells osea11€o ti nje tion*
Well IDs: IW-1 through IW-20
Were any new wells installed during this injection
event?
❑ Yes X No (7 addtnl temp. dpt.)
If yes, please provide the following information:
Number of Monitoring Wells
Number of Injection Wells
Type of Well Installed (Check applicable type):
❑ Bored ❑ Drilled ❑ Direct -Push
❑ Hand -Augured ❑ Other (specify)
Please include a copy of the GW-1 form for each
well installed.
Were any wells abandoned during this injection
event?
❑ Yes ' X No ,
If yes, please provide the following information:
Number of Monitoring Wells
Number of Injection Wells
Please include a copy of the GW 30 for each well
abandoned.
4. Injectant Information
Sodium Persulfate, Ferric Oxide Powder, Water
Injectant(s) Type (can use separate additional sheets
if necessary
Concentration 25-30% NPS, 2-5% FeO
If the injectant is diluted please indicate the source
dilution fluid: City of Charlotte Fire Hydrant
�Tic�t�Vlolu�e�Inf�cte�(�ea11z69„53
Volume Injected per well (gal) 1,400-10,232
5. Injection History
Injection date(s): 1/7-1/17/2019
Injection number (e.g. 3 of 5):1 of 1
Is this the last injection at this site?
X Yes ❑ No
I DO HEREBY CERTIFY THAT ALL THE
INFORMATION ON THIS FORM IS CORRECT TO
THE BEST OF MY KNOWLEDGE AND THAT THE
INJECTION WAS PERFORMED WITHIN THE
STANDARDS LAID OUT IN THE PERMIT.
�# _1/24/2019
SIGNATURE OF INJECTION CONTRACTOR DATE
Ian H. Connor
Submit the original of this form to the Division of Water Resources within 30 days of injection. Form UIC-IER
Attn: UIC Program, 1636 Mail Service Center, Raleigh, NC 27699-1636, Phone No. 919-807-6464 Rev. 3-1-2016

Rogers, Michael
From: David Craig <[e-mail]>
Sent: Thursday, January 31, 2019 1:47 PM
To: Rogers, Michael
Cc: Watson, Edward M
Subject: [External] RE: W10300345 ISCO injection report - Trex Properties
Attachments: 201901_Injection Event Record.pdf; 201901-Injection Report.pdf
Mr. Rogers:
Attached is a revised copy of the injection report and injection event record with the correct permit number on both
documents.
I will get you a hard copy of the report in the next week.
Let me know if you have any questions.
Thank you,
David Craig
EnviroAnalytics
Senior Project Manager
[phone]
[e-mail]
http://www.enviroanalyticsciroup.com
Please note the new corporate address is:
1515 Des Peres Road, Ste. 300, St. Louis, MO 63131
From: Rogers, Michael [mailto:[e-mail]]
Sent: Wednesday, January 30, 2019 12:34 PM
To: David Craig <[e-mail]>
Cc: Watson, Edward M <[e-mail]>
Subject: W10300345 RE: [External] ISCO injection report
Would you please send one hard copy. Also, put the permit number in the subject line of emails and on all
correspondence.
Thanks
From: David Craig [mailto:[e-mail]]
Sent: Wednesday, January 30, 2019 12:04 PM
To: Rogers, Michael <[e-mail]>
Cc: Watson, Edward M <[e-mail]>
Subject: [External] ISCO injection report

External email. Do not click links or open attachments unless you verify. Send all suspicious email as an attachment to
Mr. Rogers:
Attached for your records is a copy of the Injection Report and the Injection Event Record associated with the Sodium
Persulfate / Ferric Oxide injection at the Trex Properties, LLC site located in Charlotte, NC.
The one month post injection groundwater sampling event is tentatively scheduled for the week of 02.18.19.
If you have any questions please let me know.
David Craig
EnviroAnalytics
Group
Senior Project Manager
[phone]
dcraig@envi roanalyt icsgroup.com
http://www.enviroonalyticsciroup.com
Please note the new corporate address is:
1515 Des Peres Road, Ste. 300, St. Louis, MO 63131

Innovative Environmental lkhnologies, Inc.
Technology Discussion and Field Report
To
Trex Properties
For
The Application Of
"Ferric Oxide activated Persulfate"
At
3114 Cullman Ave.
Charlotte, NC
NCDEQ UIC Permit #-WI0300345
AIMAWEDM WO,r,W -
January 2019
FEB 13 2019
Water Quality
Reglon8l Operations stx1jon
Innovative Environmental Technologies, Inc.
6071 Easton Road
Pipersville, PA 18947
[phone]
www.iet-inc.net
Pipersville, PA . Columbus, OH . Concord, NC

dvah
WOET
Contents
ExecutiveSummary.................................................................................................................................. 2
Introduction............................................................................................................................................... 2
RemediationImplementation................................................................................................................ 2
InjectionProcedures............................................................................................................................ 2
Direct -Push -Driven Perforated Rod Placement.............................................................................. 3
SubsurfacePathway Development.................................................................................................... 3
Provect-OX Injection............................................................................................................................ 3
LiquidRinse........................................................................................................................................... 3
PostInjection Line Purge..................................................................................................................... 3
SiteMap.......................................................................................................................................................4
Conclusion.................................................................................................................................................. 5
AppendixA - Injection Logs.................................................................................................................... 5
11Page
Trex Properties - Cullman Ave.

LMI
Executive Summary
On behalf of Trex Properties, Innovative Environmental Technologies, Inc. (IET) has prepared the
following injection report. This report has been prepared to document remediation activities conducted
at the site.
The injection program was implemented from January 71h to 171h 2019. The remedial approach
employed the oxidation remediation product "Ferric Oxide activated Persulfate". This product pairs a
self -activating oxidation persulfate chemistry while providing the appropriate components for a longer
lasting biological attenuation process following the initial oxidation event.
The materials introduced across 19 of 20 injection wells included 158,858 pounds of sodium persulfate,
13,826 pounds of ferric oxide powder in approximately 69,536 gallons of solution. Although several
attempts were made IW-16 was not installed due to obstacles encountered prior to reaching the desired
depth. Surfacing of remedial material was encountered during the implementation of the design at
several of the Injection Wells; namely (IW-1, IW-2, IW-3, IW-6, IW-7, IW-10, IW-11 and IW-13).
Ultimately full dosages were applied to IW-3, IW-6 and IW-7 using decreased flow and pressure and
revisiting the location multiple times. IW-1 and IW-2 were not completed in full, but 7 direct push
locations were installed in the area around these two locations in order to distribute the material via
injection. IW-10, IW-11 and IW-13 did not receive a full dosage but IW-12 received the materials left
over from these wells. IW-12 is immediately upgradient of the uninstalled IW-16 location and 10, 11
and 13 were not accepting any more volume without excessive daylighting occurring in and along the
road (Cullman Ave). IW-12 shares a screened interval with IW-13 so the extra material was added there.
The point by point dosages along with instances of surfacing and other field notes are noted in the
attached field logs.
Introduction
The Cullman Ave site located in Charlotte, NC, was identified as having soils and groundwater impacted
by the historical release of chlorinated hydrocarbons. An injection program was conducted by IET for
the remediation of CVOC impacts in both soil and groundwater throughout the designated areas utilizing
advanced oxidation technologies.
Remediation Implementation
Injection Procedures
IET injected a total of 19 injection wells and 7 direct push locations at the Cullman Ave. site. Details
regarding each injection attempt are provided in the field logs in the Appendix.
2� ;
Trex Properties — Cullman Ave.

QIET
Direct -Push -Driven Perforated Rod
Placement
A Powerprobe 9500 unit comparable to the one
pictured in Figure 1, was utilized to drive the injection
screen (as seen in Figure 2) to depths ranging from 5
to 27 feet below ground surface (bgs). It is at these
depths, that the likelihood exists of being in close
proximity to the targeted waters in the more
permeable layers that were identified during
FIGURE 1: AMS POWER PROBE 9500 VTR characterization of the site. These more permeable
layers are those believed to have historically
provided the preferential pathways taken by the dissolved -phase CVOCs.
Subsurface Pathway Development
Compressed air was used to propel all injectants ,
into the subsurface. Compressed air was first
injected into the subsurface at approximately IMMe
150 pounds per square inch (psi) until a
significant pressure drop was observed at the
injection pressure vessel. This process is referred
to as pathway development. The intent of this
step is to open pathways in the subsurface for FIGURE 2: RETRACTABLE INJECTION SCREEN
the injectants to follow. These pathways are
believed to be those more permeable pathways along which VOCs are more likely to have
migrated, both in the vadose and saturated zones. Liquid and liquid -entrained injectants are then
delivered with pressurized gas to the pathways that were produced during the development step.
Liquid Injection
A predetermined volume of the sodium persulfate and ferric oxide material was immediately
injected into the subsurface fractures and voids that were developed during the compressed air
injection step.
Liquid Rinse
A small amount of water was injected to clear the injection lines and sand packs of the injectant.
Post Injection Line Purge
Compressed air was injected to clear the lines of all material and to force the remedial components
further into the formation before moving to the next injection location.
3 1 P a g e
Trex Properties — Cullman Ave.

QtIET
Site Map
f 1 �t �-1,t1f10
PMW-21 �PY�-i1A
_A
!89.600 �
SOURCE
/
AREAF AREA FOR
/ Inc lKtA
,t
CONTAMRMIh4ATIQN \/1
FN4 , C 43j
os
�--...777
�+�► DPT Locations
FIGURE 3: GENERAL INJECTION IMPLEMENTATION — INJECTION LOCATIONS
41
Trex Properties — Cullman Ave.

�CI�ET
Conclusion
The injection program at the Cullman Ave. site was implemented based on the proposed design with
slight field modifications. All proposed injectants were introduced at the targeted depths. It is expected
that the injection event will yield positive results and IET looks forward the assessing the data following
future sampling events.
Appendix A - Injection Logs
AdCt+����vR
FEB 13 2 r f'?
Water
iifi owlOperwv
5 1 P a g e
Trex Properties — Cullman Ave.

Job Name: Trex - Cullman Ave. - Charlotte, NC 2019 Injections
Permanent Well Application of Ferric Oxide Activated Persulfate
Date of Injection: 1/10,1/12/2019 Time of Injection:
to
Well ID IW-1
Summary
Injection Point Summary
Actual
Proposed
Actual
Proposed
Well Screen
6-26'
6-26'
Duration of Fracture (seconds):
20
Pressure of Pre -injection pathway development
75
Estimated Radius of Influence
12.5
Pounds of Sodium Persulfate
8363
8363
Pounds of Ferric Oxide
725
725
Gallons of Solution
3658
3658
Pressure of Post -injection pathway dev.
50
Odors:
Field
Observations: Well was attempted 1/10 daylighting i
casing with bentonite and re-attemptec
utilized in place of this iniection well.
unediately from around well
1/12 daylightinR immediatle,
attempted to seal top of
Direct hush iniection p+

T1,
[NO A - RONI MAL ` ECHNOLOWES, INC.
Job Name: Trex - Cullman Ave. - Charlotte, NC 2019 Injections
Permanent Well Application of Ferric Oxide Activated Persulfate
Date of Injection: 1/10,1/12/2019 Time of Injection: 14:16
to
Well ID IW-2 17:45
Summary
Injection Point Summary
Actual
Proposed
Actual
Proposed
Well Screen
6-26'
6-26'
6-26'
6-26'
Duration of Fracture (seconds):
20
20
Pressure of Pre -injection pathway development
75
75
Estimated Radius of Influence
12.5
12.5
Pounds of Sodium Persulfate
3200
8363
3200
8363
Pounds of Ferric Oxide
277
725
277
725
Gallons of Solution
1400
3658
1400
3658
Pressure of Post -injection pathway dev.
50
50
Odors:
Field
Observations: Daylighting occurred from mulitiple locations after 1000 gallons injected 1/10, well was revisited
1/12 and 400 gallons was injected before daylighting occurred. DPT locations were installed in
order to annly the remaining iniectate.

i
NEI
INO ATl :.. _ MMMAL TECHNOLOalF�, INC.
Job Name: Trex - Cullman Ave. - Charlotte, NC
2019 Injections
Permanent Well Application of Ferric Oxide Activated Persulfate
Date/Time of Injection: 1/8/2019
1/10/2019
1/11/2019
1/12/2019 1/15/2019
10:38
9:30
12:30
8:45 8:46
Well ID IW-3 to
to
to
to to
12:30
13:00
16:45
11:42 9:11
Summary
Injection Point Summary
Actual
Proposed
Actual
Proposed
Well Screen
11-31'
11-31'
11-31'
11-31'
Duration of Fracture (seconds):
20
20
Pressure of Pre -injection pathway development
75
75
Estimated Radius of Influence
12.5
12.5
Pounds of Sodium Persulfate
8363
8363
8363
8363
Pounds of Ferric Oxide
725
725
725
725
Gallons of Solution
3658
3658
3658
3658
Pressure of Post -injection pathway dev.
50
50
Odors:
Field
Observations: Daylighting occurred from the edge of the
volume
well was revisited multiple times in order to apply full

A
AL TEC 'OLOW , INC.
Job Name: Trex - Cullman Ave. - Charlotte, NC
Permanent Well Application of Ferric Oxide Activated Persulfate
Date/Time of Injection: 1/7/2019
15:02
Well ID IW-4
2019 Injections
1/8/2019
8:50
to to
16:48 10:34
Summary
Injection Point Summary
Actual
Proposed
Proposed
Proposed
Well Screen
18-38'
19-39'
18-38'
19-39'
Duration of Fracture (seconds):
20
20
Pressure of Pre -injection pathway development
75
75
Estimated Radius of Influence
12.5
12.5
Pounds of Sodium Persulfate
8363
8363
8363
8363
Pounds of Ferric Oxide
725
725
725
725
Gallons of Solution
3658
3658
3658
3658
Pressure of Post -injection pathway dev.
50
50
Odors:
Field
Observations:

Job Name:
Date of Injection:
Well ID
Trex - Cullman Ave. - Charlotte, NC
Permanent Well Application of Ferric Oxide Activated Persulfate
1/7/2019 Time of Injection: 10:13
to
IW-5 14:49
Summary
Injection Point Summary
Proposed
Proposed
Actual
Proposed
Well Screen
18-38'
19-39'
18-38'
19-39'
Duration of Fracture (seconds):
20
20
Pressure of Pre -injection pathway development
75
75
Estimated Radius of Influence
12.5
12.5
Pounds of Sodium Persulfate
8363
8363
8363
8363
Pounds of Ferric Oxide
725
725
725
725
Gallons of Solution
3658
3658
3658
3658
Pressure of Post -injection pathway dev.
50
50
Odors:
Field
Observations: Slight surface escave,15' northeast of well, let
2019 Injections
at 12:30, finished injection at 14:00

Job Name: Trex - Cullman Ave. - Charlotte, NC 2019 Injections
Permanent Well Application of Ferric Oxide Activated Persulfate
Date/Time of Injection: 1/9/2019 1/10/2019 1/11/2019
12:26 8:51 9:54
Well ID IW-6
Sum]
Injection Point Summary
Actual
Proposed
Actual
Well Screen
18-38'
19-39'
18-38'
Duration of Fracture (seconds):
20
20
Pressure of Pre -injection pathway development
75
75
Estimated Radius of Influence
12.5
12.5
Pounds of Sodium Persulfate
8363
8363
8363
Pounds of Ferric Oxide
725
725
725
Gallons of Solution
3658
3658
3658
Pressure of Post -injection pathway dev.
1 50
50
Odors:
Field
Observations:
to to to
16:42 9:20 12:30
occurred 20' west of well, revisited well twice in order to finish under decreased

ATIV. ENVIRONMENTAL TECHNOLOEHES, INC.
Job Name: Trex - Cullman Ave. - Charlotte, NC
2019 Injections
Permanent Well Application of
Ferric Oxide Activated Persulfate
Date/Time of
Injection:
1/10/2019
1/11/2019
1/12/2019 1/15/2019
14:45
13:05
9:07 9:18
Well ID IW-7
to
to
to to
16:15
14:45
11:05 11:10
Odors:
Field
Observations: Daylighting occurred 1/10 15' east of injection well, well was revisited 3 times to complete under decreased
pressure (20 psi)
Summary
Injection Point Summary
Actual
Proposed
Actual
Proposed
Well Screen
18.5-38.5'
19-39'
18.5-38.5'
19-39'
Duration of Fracture (seconds):
20
20
Pressure of Pre -injection pathway development
75
75
Estimated Radius of Influence
12.5
12.5
Pounds of Sodium Persulfate
8363
8363
8363
8363
Pounds of Ferric Oxide
725
725
725
725
Gallons of Solution
3658
3658
3658
3658
Pressure of Post -injection pathway dev.
50
50

5-
V-f -
MOVATIVE _._ - 'RO'NMENTAL TE-CH'OLOEHES, UNC.
Job Name: Trex - Cullman Ave. - Charlotte, NC 2019 Injections
Permanent Well Application of Ferric Oxide Activated Persulfate
Date of Injection: 1/8/2019 Time of Injection: 12:45
to
Well ID IW-8 16:04
Summary
Injection Point Summary
Actual
Proposed
Actual
Proposed
Well Screen
27-47'
27-47'
27-47'
27-47'
Duration of Fracture (seconds):
20
20
Pressure of Pre -injection pathway development
75
75
Estimated Radius of Influence
12.5
12.5
Pounds of Sodium Persulfate
8363
8363
8363
8363
Pounds of Ferric Oxide
725
725
725
725
Gallons of Solution
3658
3658
3658
3658
Pressure of Post -injection pathway dev.
50
50
Odors:
Field
Observations:

i 1
INOVATIVE _ 1 ftONMEWrAL TECSdN ODDER 1 INC.
Job Name:
Date of Injection:
Well ID
Trex - Cullman Ave. - Charlotte, NC
Permanent Well Application of Ferric Oxide Activated Persulfate
1/9/2019 Time of Injection: 8:53
to
12:04
Summary
Injection Point Summary
Actual
Proposed
Actual
Proposed
Well Screen
31-51'
31-51'
31-51'
31-51'
Duration of Fracture (seconds):
20
20
Pressure of Pre -injection pathway development
75
75
Estimated Radius of Influence
12.5
12.5
Pounds of Sodium Persulfate
8363
8363
8363
8363
Pounds of Ferric Oxide
725
725
725
725
Gallons of Solution
1 3658
3658
3658
3658
Pressure of Post -injection pathway dev.
1 50
50
Odors:
Field
Observations:
2019 Injections

VO A !S !i ONMEMAL TECH OLOW y INC.
757 Name: Trex - Cullman Ave. - Charlotte, NC 2019 Injections
Permanent Well Application of Ferric Oxide Activated Persulfate
Well ID IW-10
Date/Time of Injection: 1/10/2019 1/11/2019 1/16/2019
15:29 9:10 8:18
to to to
16:30 10:13 8:36
Summary
Injection Point Summary
Proposed
Proposed
Actual
Proposed
Well Screen
31-51'
31-51'
31-51'
31-51'
Duration of Fracture (seconds):
20
20
Pressure of Pre -injection pathway development
75
75
Estimated Radius of Influence
12.5
12.5
Pounds of Sodium Persulfate
3657
8363
3657
8363
Pounds of Ferric Oxide
317
725
317
725
Gallons of Solution
1 1600
3658
1600
3658
Pressure of Post -injection pathway dev.
1 50
50
Odors:
Field
Observations: Daylighting occurred 20' south of IW-10 on 1/10, well was revisited twi
under decreased pressure (20 psi)
ina occurred both times

MATIVE ENVIRONMENTAL TECHNIOLO(RES, INC.
Job Name: Trex - Cullman Ave. - Charlotte, NC 2019 Injections
Permanent Well Application of Ferric Oxide Activated Persulfate
Date/Time of Injection: 1/11/2019 1/15/2019 1/16/2019
9:50 12:00 10:29
Well ID IW-11 to to to
11;00 14:45 11:22
Summary
Injection Point Summary
Actual
Proposed
Actual
Proposed
Well Screen
31-51'
31-51'
31-51'
31-51'
Duration of Fracture (seconds):
20
20
Pressure of Pre -injection pathway development
75
75
Estimated Radius of Influence
12.5
12.5
Pounds of Sodium Persulfate
4516
8363
4516
8363
Pounds of Ferric Oxide
396
725
396
725
Gallons of Solution
2000
3658
2000
3658
Pressure of Post -injection pathway dev.
50
50
Odors:
Field
Observations: Daylighting occurred 1/11 after 400
under reduced pressure (20 psi), dai
ms injected, 25' northeast of injection well, well was revisited twice
ing continued from same area, 1600 additional gallons infected.

AL TECH-NOLOWES, MC.
Job Name: Trex - Cullman Ave. - Charlotte, NC 2019 Injections
Permanent Well Application of Ferric Oxide Activated Persulfate
Time of Injection: 1/7/2019 1/15/2019 1/16/2019
11:20 14:55 8:38
Well ID IW-12 to to to
17:00 16:47 15:30
Summary
Injection Point Summary
Actual
Proposed
Actual
Proposed
Well Screen
44-64'
44-64'
44-64'
44-64'
Duration of Fracture (seconds):
20
20
Pressure of Pre -injection pathway development
75
75
Estimated Radius of Influence
12.5
12.5
Pounds of Sodium Persulfate
23392
8363
23392
8363
Pounds of Ferric Oxide
2028
725
2028
725
Gallons of Solution
10,232
3658
10232
3658
Pressure of Post -injection pathway dev.
50
50
Odors:
Field
Observations: Left over materials from IW-10, IW-1.1 and IW-13 were added here due to screened interval bei
common w' IW 13 and um-radient proximity to uninstalled IW 16

A
L TE CHNOLOEHES, INC.
Job Name: Trex - Cullman Ave. - Charlotte, NC 1 2019 Injections
Permanent Well Application of Ferric Oxide Activated Persulfate
Date/Time of Injection: 1/7/2019 1/12/2019 1/16/2019
10:30 16:00 12:20
Well ID IW-13 to to to
11:00 17:20 12:45
Summary
Injection Point Summary
Actual
Proposed
Actual
Proposed
Well Screen
44-64'
44-64'
44-64'
44-64'
Duration of Fracture (seconds):
20
20
Pressure of Pre -injection pathway development
75
75
Estimated Radius of Influence
12.5
12.5
Pounds of Sodium Persulfate
1829
8363
1829
8363
Pounds of Ferric Oxide
158
725
158
725
Gallons of Solution
800
3658
800
3658
Pressure of Post -injection pathway dev.
50
50
Odors:
Field
Observations: Daylighting occurred 1/7 from previously abandoned casing Y north of well, old casing was over
drilled and grouted from 0-20' on 1/9/2019, grout was allowed to set and well was revisited twice
under reduced pressure (20 psi), davliahtina occurred 10' east of well both times

F;
L............ .-, tN
INOVAUVE ENVIRONMENTAL TE- CHNO1 OEHIES, INC.
Job Name: Trex - Cullman Ave. - Charlotte, NC 2019 Injections
Permanent Well Application of Ferric Oxide Activated Persulfate
Date/Time of Injection:
11:31 8:32
Well ID IW-14 to to
16:57 11:09
Summary
Injection Point Summary
Actual
Proposed
Actual
Proposed
Well Screen
52-72'
53-73'
52-72'
53-73'
Duration of Fracture (seconds):
20
20
Pressure of Pre -injection pathway development
75
75
Estimated Radius of Influence
12.5
12.5
Pounds of Sodium Persulfate
8363
8363
8363
8363
Pounds of Ferric Oxide
725
725
725
725
Gallons of Solution
3658
3658
3658
3658
Pressure of Post -injection pathway dev.
50
50
Odors:
Field
Observations:

A`-' 1� _
i I �1
[NOVA _ l im�AL TECHNOLOEHES, M.
Job Name: Trex - Cullman Ave. - Charlotte, NC 2019 Injections
Permanent Well Application of Ferric Oxide Activated Persulfate
Date of Injection: 1/12/2019 Time of Injection: 11:17
to
Well ID IW-15 15:07
Summary
Injection Point Summary
Actual
Proposed
Actual
Proposed
Well Screen
53-73'
53-73'
53-73'
53-73'
Duration of Fracture (seconds):
20
20
Pressure of Pre -injection pathway development
75
75
Estimated Radius of Influence
12.5
12.5
Pounds of Sodium Persulfate
8363
8363
8363
8363
Pounds of Ferric Oxide
725
725
725
725
Gallons of Solution
3658
3658
3658
3658
Pressure of Post -injection pathway dev.
50
50
Odors:
Field
Observations:

mil. A I X ENVI OA MENT L TECH OLO61 p UNC.
Job Name:
Date of Injection:
Trex - Cullman Ave. - Charlotte, NC 2019 Injections
Permanent Well Application of Ferric Oxide Activated Persulfate
Well ID IW-16
Time of Injection:
to
Summary
Injection Point Summary
Actual
Actual
Well Screen
Duration of Fracture (seconds):
Pressure of Pre -injection pathway development
Estimated Radius of Influence
Pounds of Sodium Persulfate
Pounds of Ferric Oxide
Gallons of Solution
Pressure of Post -injection pathway dev.
Odors:
Field
Observations: Well not installed

l
A IVE 'E r RONAr1RlttWL TE1sHNCiL\lUIES, C.
Job Name: Trex - Cullman Ave. - Charlotte, NC
2019 Injections
Permanent Well Application of Ferric Oxide Activated Persulfate
Date/Time of Injection: 1/9/2019 1/10/2019
11:30 8:35
Well ID IW-17 to to
16:37 11:22
Summary
Injection Point Summary
Actual
Proposed
Actual
Proposed
Well Screen
53-73'
53-73'
53-73'
53-73'
Duration of Fracture (seconds):
20
20
Pressure of Pre -injection pathway development
75
75
Estimated Radius of Influence
12.5
12.5
Pounds of Sodium Persulfate
8363
8363
8363
8363
Pounds of Ferric Oxide
725
725
725
725
Gallons of Solution
3658
3658
3658
3658
Pressure of Post -injection pathway dev.
50
50
Odors:
Field
Observations: Slight surface escapes observed around
for nieht and finished 1/10.

M
AL' ECHNOL0E11S, INC.
Job Name: Trex - Cullman Ave. - Charlotte, NC
Permanent Well Application of Ferric Oxide Activated Persulfate
Time of Injection: 1/7/2019
15:30
Well ID IW-18
2019 Injections
1/8/2019
8:56
to to
17:03 10:50
Summary
Injection Point Summary
Actual
Proposed
Actual
Proposed
Well Screen
53-73'
53-73'
53-73'
53-73'
Duration of Fracture (seconds):
20
20
Pressure of Pre -injection pathway development
75
75
Estimated Radius of Influence
12.5
12.5
Pounds of Sodium Persulfate
8363
8363
8363
8363
Pounds of Ferric Oxide
725
725
725
725
Gallons of Solution
3658
1 3658
3658
3658
Pressure of Post -injection pathway dev.
50 1
50
Odors:
Field
Observations:

1 ;'�� t"LH-"1
11------� �
Job Name:
Date of Injection:
Well ID
Trex - Cullman Ave. - Charlotte, NC 2019 Injections
Permanent Well Application of Ferric Oxide Activated Persulfate
1/10/2019 Time of Injection: 11:32
IW-19
to
15:18
Summary
Injection Point Summary
Actual
Proposed
Proposed
Proposed
Well Screen
53-73'
53-73'
53-73'
53-73'
Duration of Fracture (seconds):
20
20
Pressure of Pre -injection pathway development
75
75
Estimated Radius of Influence
12.5
12.5
Pounds of Sodium Persulfate
8363
8363
8363
8363
Pounds of Ferric Oxide
725
725
725
725
Gallons of Solution
3658
3658
3658
3658
Pressure of Post -injection pathway dev.
50
50
Odors:
Field
Observations: Influence observed at PMW-10A and PMW-1
J slues and continued

0
AL TEECHNOLOEHES, INC.
Job Name: Trex - Cullman Ave. - Charlotte, NC
Permanent Well Application of Ferric Oxide Activated Persulfate
Time of Injection: 1/8/2019
10:57
Well ID IW-20
2019 Injections
1/9/2019
8:18
to to
17:23 11:10
Summary
Injection Point Summary
Actual
Proposed
Proposed
Proposed
Well Screen
53-73'
53-73'
53-73'
53-73'
Duration of Fracture (seconds):
20
20
Pressure of Pre -injection pathway development
75
75
Estimated Radius of Influence
12.5
12.5
Pounds of Sodium Persulfate
8363
8363
8363
8363
Pounds of Ferric Oxide
725
725
725
725
Gallons of Solution
3658
3658
3658
3658
Pressure of Post -injection pathway dev.
50
50
Odors:
Field
Observations:
surface escapes observed around
for night and finished 1/9

T
1NN0VATWE UNIRONMMAL'fEMOLMIES, INC.
Job Name: Trex - Cullman Ave. - Charlotte, NC 2019 Injections
Permanent Well Application of Ferric Oxide Activated Persulfate
Date of Injection: 1/17/2019 Time of Injection: 9:56
WellID DPT-1 11:37
Summary
Injection Point Summary
Actual
Proposed
Actual
Proposed
Actual
Proposed
Actual
Proposed
Actual
Proposed
Actual
Proposed
Injection Interval (ft.bgs.)
8-10'
10-12'
12-14'
16-18'
19-21'
8-21'
Duration of Fracture (seconds):
3
3
3
3
3
Pressure of Pre -injection pathway developmenl
150
150
150
150
150
Estimated Radius of Influence
12.5
12.5
12.5
12.5
12.5
Pounds of Sodium Persulfate
387
387
387
387
387
1935
Pounds of Ferric Oxide
35
35
35
35
35
175
Gallons of Solution
170
170
170
170
170
850
Pressure of Post -injection pathway dev.
50
50
50
50
50
Odors:
Field
Observations: DPT refusal O 22', location installed --10' west of IW-1

-- f
��
INNOVATIVE ENVIRONMENTAL TECHNOLOGIES, INC.
Job Name: Trex - Cullman Ave. - Charlotte, NC
Permanent Well Application of Ferric Oxide Activated Persulfate
Date of Injection: 1/17/2019
Well ID DPT-2
Time of Injection:
2019 Injections
11:46
to
13:22
Summary
Injection Point Summary
Actual
Proposed
Actual
Proposed
Actual
Proposed
Actual
Proposed
Actual
Proposed
Actual
Proposed
Injection Interval (ft.bgs.)
8-10'
10-12'
12-14'
16-18'
18-20'
8-20'
Duration of Fracture (seconds):
3
3
3
3
3
Pressure of Pre -injection pathway developmeni
150
150
150
150
150
Estimated Radius of Influence
12.5
12.5
12.5
12.5
12.5
Pounds of Sodium Persulfate
387
387
387
387
387
1935
Pounds of Ferric Oxide
35
35
35
35
35
175
Gallons of Solution
170
170
170
170
170
850
Pressure of Post -injection pathway dev.
50
50
50
50
50
Odors:
Field
Observations: DPT refusal @ 22', location installed —10' southwest of IW-1

1
r
uaoVA,nA mMoNmmAL TEmoLorms, wc.
Job Name: Trex - Cullman Ave. - Charlotte, NC
Permanent Well Application of Ferric Oxide Activated Persulfate
Date of Injection: 1/14/2019
Well ID DPT-3
Time of Injection:
2019 Injections
16:55
to
18:45
Cnmmary
Injection Point Summary
Actual
Proposed
Actual
Proposed
Actual
Proposed
Actual
Proposed
Actual
Proposed
Actual
Proposed
Injection Interval (ft bgs.)
8-10'
10-12,
12-14'
14-16'
16-18'
8-18'
Duration of Fracture (seconds :
3
3
3
3
3
Pressure of Pre -injection pathway developmeni
150
150
150
150
150
Estimated Radius of Influence
12.5
12.5
12.5
12.5
12.5
Pounds of Sodium Persulfate
387
387
387
387
387
1935
Pounds of Ferric Oxide
35
35
35
35
35
175
Gallons of Solution
170
170
170
170
170
850
Pressure of Post -injection pathway dev.
50
50
50
50
50
Odors:
Field
Observations: DPT refusal O 19', location installed —15' east of IW-1

-a
MNOVAUA I; MRONMMAL TECHNOL06IES, INC.
Job Name:
Date of Injection:
Trex - Cullman Ave. - Charlotte, NC
Permanent Well Application of Ferric Oxide Activated Persulfate
1/14/2019
Well ID DPT-4
Time of Injection:
2019 Injections
16:00
to
16:55
Cnmmary
Injection Point Summary
Actual
Proposed
Actual
Proposed
Actual
Proposed
Actual
Proposed
Actual
Proposed
Actual
Proposed
Injection Interval (ft.bgs.)
5-7'
8-10'
11-13'
14-16'
17-19'
5-19'
Duration of Fracture (seconds):
3
3
3
3
3
Pressure of Pre -injection pathway developmeni
150
150
150
150
150
Estimated Radius of Influence
12.5
12.5
12.5
12.5
12.5
Pounds of Sodium Persulfate
387
387
387
387
387
1935
Pounds of Ferric Oxide
35
35
35
35
35
175
Gallons of Solution
170
170
170
170
170
850
Pressure of Post -injection pathway dev.
50
50
50
50
50
Odors:
Field
Observations: DPT refusal (a), 20', location installed —15' southeast of IW-I

I!+
E 1'Y i /
INNOVATIVE MWIRONMI; AL TECHNOLO(H S, INC.
Job Name:
Date of Injection:
Trex - Cullman Ave. - Charlotte, NC
Permanent Well Application of Ferric Oxide Activated Persulfate
1/14/2019
Well ID DPT-5
Time of Injection:
2019 Injections
13:50
to
15:05
Summary
Injection Point Summary
Actual
Proposed
Actual
Proposed
Actual
Proposed
Actual
Proposed
Actual
Proposed
_Actual
Proposed
Injection Interval (ft.bgs.)
5-7'
8-10'
11-13'
14-16'
17-19'
5-19'
Duration of Fracture (seconds):
3
3
3
3
3
Pressure of Pre -injection pathway developmeni
150
150
150
150
150
Estimated Radius of Influence
12.5
12.5
12.5
12.5
12.5
Pounds of Sodium Persulfate
387
387
387
387
387
1935
Pounds of Ferric Oxide
35
35
35
35
35
175
Gallons of Solution
170
170
170
170
170
850
Pressure of Post -injection pathway dev.
50
50
50
50
50
Odors:
Field
Observations: DPT refusal A 20', location installed —15' west of IW-2

El
f �
INNOVATIVE £NiIIRONM£NTAI.' EUMOLOERESS, INC.
Job Name: Trex - Cullman Ave. - Charlotte, NC 2019 Injections
Permanent Well Application of Ferric Oxide Activated Persulfate
Date of Injection: 1/14/2019
Well ID DPT-6
Time of Injection: 12:01
to
13:36
Summary
Injection Point Summary
Actual
Proposed
Actual
Proposed
Actual
Proposed
Actual
Proposed
Actual
Proposed
Actual
Proposed
Injection Interval (ft.bgs.)
14-16e
16-18'
18-20e
20-22e
22-24e
14-24'
Duration of Fracture (seconds):
3
3
3
3
3
Pressure of Pre -injection pathway developmeni
150
150
150
150
150
Estimated Radius of Influence
12.5
12.5
12.5
12.5
12.5
Pounds of Sodium Persulfate
387
387
387
387
387
1935
Pounds of Ferric Oxide
35
35
35
35
35
175
Gallons of Solution
170
170
170
170
170
850
Pressure of Post -injection pathway dev.
50
50
50
50
50
Odors:
Field
Observations: DPT refusal @ 25', location installed —15' southwest of IW-2

ji
INNOVATIVE EMtONI6IMAL, TECHNOLOERES, INC.
Job Name: Trex-Cullman Ave. 2019 Injections
In -Situ Chemical Oxidation using Ferric Oxide activated Persulfate
Date of Injections: 1/7-1/17/2019
Injection Summary Injection Summary
Injection Point Summary
Actual
Proposed
Pounds of Sodium Persulfate
158858
158900
Pounds of Ferric Oxide
13826
13780
Gallons of Solution
1 69536
69500

! = l
ii�ivVYli[ YGT1\1!i{MY1VEN—LALTEr✓fiivciLowt wc
r
Job Name: Trex - Cullman A— _ ra..._a
"une Pra +aajcctivai:
Well ID
Pnint
FP@'61'�ta �9agC L,F .Q� c$pH-Hii"tenn Of
C1eFrk "Ni e &iv te:S ppPCiH
1ii4i2tii
DPT-7
I Yressnra of Pre -infection nathwav devF
Estimated Radius of Influence
Pounds of Sodium Persulfate
Pounds of Ferric Oxide
Gallons of Solution
Pressure of Post -injection pathway dev.
Act3al � PrginaaserE
Actual Pror�ss�d _
A traaa
C_ l
1prrtranserl A�tEaal
17-1y1
19 �1i s
2 i-25'
15.0 1
'
15D 1 1
1 3
12.5
lso
1 J 1SD_
387
12.5
12.5
12.5
35
387
387
387
170
35
35
35
50
170
170
170
50
50
50
Fuld
Observations: DPT refusal R 25' location installed —15' southwest of iW-2
Time of injection:
Actval
25-27'
s _
150
12.5
387
35
170
50
2019 Injections
9:47
to
11:58
Acton[
i7-27'
175
850