WQ0000461_2022 Residual Annual Report_20230228 (2)

Initial Review
Reviewer
Nathaniel.Thornburg
Is this submittal an application? (Excluding additional information.) *
Yes No
If not an application what is the submittal type?* Annual Report
Residual Annual Report
Additional Information
Other
Annual Report Year* 2022
Permit Number (IR) * WQ0000461
Applicant/Permittee Louisiana-Pacific Corporation
Email Notifications
Does this need review by the hydrogeologist? * Yes No
Regional Office Winston-Salem
CO Reviewer
Admin Reviewer

Submittal Form
Project Contact Information
Please provide information on the person to be contacted by NDB Staff regarding electronic submittal, confirmation of receipt, and other correspondence.
Name* James Boles
Email Address*
[e-mail]
Project Information
Application/Document Type*
New (Fee Required)
Modification - Major (Fee Required)
Renewal with Major Modification (Fee
Required)
Annual Report
Additional Information
Other
Phone Number*
336-696-3348
Modification - Minor
Renewal
GW-59, NDMR, NDMLR, NDAR-1,
N DAR-2
Residual Annual Report
Change of Ownership
We no longer accept these monitoring reports through this portal. Please click on the link below and it will take you to the correct form.
https://edoes.deq.nc.gov/Forms/NonDischarge_Monitoring_Report
Permit Type:*
Wastewater Irrigation
High -Rate Infiltration
Other Wastewater
Reclaimed Water
Closed -Loop Recycle
Residuals
Single -Family Residence Wastewater
Other
Irrigation
Permit Number:*
WQ0000461
Has Current Existing permit number
Applicant/Permittee Address*
1068 ABTCO Rd. North Wilkesboro, NC 28659
Facility Name*
Louisiana-Pacific - Roaring River Mill Class A Residuals Program
Please provide comments/notes on your current submittal below.
At this time, paper copies are no longer required. If you have any questions about what is required, please contact Nathaniel Thornburg
at [e-mail].
Please attach all information required or requested for this submittal to be reviewed here.
(Application Form, Engineering Plans, Specifications, Calculations, Etc.)
Louisiana Pacific Corp. 2022 Land Application Annual
6.14MB
Report.pdf
Upload only 1 PDF document (less than 250 MB). Multiple documents must be combined into one PDF file unless file is larger
than upload limit.
* By checking this box, I acknowledge that I understand the application will not be accepted for pre -review until the fee (if required) has
been received by the Non -Discharge Branch. Application fees must be submitted by check or money order and made payable to the
North Carolina Department of Environmental Quality (NCDEQ). I also confirm that the uploaded document is a single PDF with all parts
of the application in correct order (as specified by the application).
Mail payment to:
NCDEQ — Division of Water Resources
Attn: Non -Discharge Branch
1617 Mail Service Center
Raleigh, NC 27699-1617
Signature
Submission Date 2/28/2023

February 9, 2023
Information Processing Unit
NCDENR - DWQ
1617 Mail Service Center
Raleigh, NC 27699-1617
RE: Land Application Annual Report
Permit No. WQ0000461
Louisiana-Pacific Corporation
To Whom It May Concern,
Please except this electronic copy of the Sludge Land Application Annual Report for 2022 as
required by Permit No WQ0000461. This report includes the annual certification form,
explanations for any non-compliance as well as all monitoring and associated documentation
required by the permit.
If there are any questions regarding this report, please contact me at [phone].
Sincerely,
Adam Byrd
EHS Manager
Louisiana Pacific - Roaring River
[e-mail]
[phone]
cc: File
1068 ABTCO Road
ADDRESS North Wilkesboro, NC 28659
336,696,2751
TEL [phone]
FAX www.ipcorp.com
WEB
- BU1LD WITH US.'

Narrative
1068 ABTCO Road
ADDRESS North Wilkesboro, NC 28659
336.696.2751
TEL [phone]
FAx www.lpcorp.com
WEB

2022 Annual Sludge Land Application Report
Permit Number: WQ0000461
General
Louisiana-Pacific Corporation — Roaring River Facility (LP) of Wilkes County, no residuals
were Land Applied during the 2022 calendar year. LP has operated in compliance with the
permit requirements during 2022 except as noted below.
Groundwater Monitoring — Monitoring,Report Keeping,and Reporting
LP has six (6) monitoring wells listed in Permit No. WQ0000461. These wells were sampled
twice (2) per year according to the requirements of the current permit. The six (6) wells are
located on LP property and correspond to selected groups of land application fields that are
monitored. All land application ceased in the monitoring area of field 1228-10387-25 in
2008.
LP has indicated non-compliance with this requirement due to elevated nitrate readings
exceeding 10 mg/l measured in groundwater monitoring wells DSI-MWI, DSI-MW5, and
DST-MW9 during the March and September monitoring events. The results of the
groundwater monitoring are included in this report in the Groundwater Analysis section.
1668 ABTCO Road
ADDRESS North Wilkesboro, NC 28669
336.696.2751
TEL [phone]
FAX www.lpcorp.com
WFB

DMSDF
1068 ABTCO Road
ADM= North Wilkesboro, NC 286S9
336.696.2751
.may 336.696.3448
FAX WWW-IpcorP_corrt
WEE

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Certified Mail — 7017 0660 00010015 4684
Return Receipt Requested
April 19, 2022
Information Processing Unit
NCDEQ - DWR
1617 Mail Service Center
Raleigh, NC 27699-1617
Subject: Groundwater Sampling Results, March 2022
Permit No. WQ0000461
Louisiana-Pacific Corporation
To Whom It May Concern,
Please find attached two copies of Forms GW-59 and GW-59A and lab sample results for
sampling conducted during the month of March as required by Condition III.11 of Permit No.
WQ0000461.
Note that we detected nitrates equal to or above the established standard in well DS1-MWI,
DS 1-MW5, and DS I-MW9.
If there are any questions regarding this report, please contact me at [phone].
Sincerely,
Chad Witherspoon,
Plant EQ Manager
Louisiana Pacific - Roaring River
[e-mail]
[phone] (o)
336-488-6779 (c)
cc: File
ADDRESS 1068 ABTCO Road
North Wilkesboro, NC 28659
TEL [phone]
FAR 33ax96.3443
WFs www.tpaorp.com

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GW-59A COMPLIANCE REPORT FORM Permit #40MA-1
( ubodt one each nwititoring period with GW-59 forms.)
i
Enter date monitoring results were due. ) Will this monitoring report (OW-59 and GW-59A)
YES
be aubmitttd after the established due date
2
Was any required information missing on the GW-59 report forms?
YES
05
IF the answer to question 1 or 2 is "YES , list in the space provided below the well identification numbers) and
explain the problems encountered in obtaining the required information.
3
Are any of clie monitor wells in need of repair or maintenance (damaged casing, unlocked or missing cap, missing
YES
identification plate, area overgrown, etc.)? lfthe answer is "Yes", contact the Regional Office for guidance.
4
Are any monitored constituents equal to or above the established standards?
YE
NO
If the answer to question 4 is 'NO", skip to section a.
If the answer to question 4 is "YES" list the affected wells individually with consfltuent(s) and concentration(s)
exceeding standards in the space provided below.,
tS(-MW-q 1Y.&P
A51-ffiW-i 3D,?,Va%-
bS l- mw+ S I11-0 M8 lL
5
For the constituents identified in question 4 above, have standards been exceeded previously for the
NO
some constituent(s) in the same well(s) in the last two years.?
If the answer to guest►on 5 is 'NO", slop to section B.
If the answer to question 5ls "YES", list in the space provided below, each well with consiituent(s) exceeding
standards, concentratron(s) reported, and sample collection date for each occurrence (for the last two years))
nS -MW- t 3p•q $cam%a'+Od '{aSt-r►7W-I 3`rr 3 `%r4.vl
�Si-,v�ra�f a5.1 + /t- gla$lsoaa i
"dD �SI-►W—So�R,'7 31a3�ao1 i�Si-I►suj-53b?•t. ��•�S�sO�'�
iSl-Yvrrnr-S ��•$ +►+glr. °ti;�aC1e'�
st-M,a�9 i3.r� r�Valpeao
ti
Are the monitoring wells listed in section 5 located at or beyond the review boundary?
NO
If the answer is "YES", a groundwater quality problem may be occurring. CONTACT THE REGIONAL
OFFICE 1MNEDIATELYFOR GUIDANCE. If the answer is "NO", monitoring wells maybe irnproperfy
located; contact the Regional Office.
7
Is the permittee implementing previously approved actions required by the Division Involving this
NO
groundwater quality problem?
If the answer to question 7 is "YES', describe those actions in the space provided below.
If the answer to question 7Is "NO", contact the Regional Office w0in 90 d tlon may be
Le qLfted to determine the Imi3acf the waste disposals vstern is having at the review and com liance
boundaries surroundina this facif . Failure to do so maV subject the permittee to a Nodes of Vlolatlon
tines andlnr enaldes.
4ti 0*1,64tort A.Dova ie, Wi5 5rtay+aAa6r msr`torin5 cwq%% W\ bra$. 8 i -ahn11At
�fO� YOr ME71�i�@rlYfs i7CgSfs of �urrdK-� }Qr7+n.F. A emre.�ve aG�iOV1 ?iClYl uj45 sN51MITQ
A,e Vl$IBYI,
g
The person completing this portion (GW-59A) of the monitoring report should sign below and submit this
form with GW-59 forms for required wells to the address provided of the top of the current GW»59 form_
(hereby aeknoWledge thit'the atibva,iffarrinat mwas evaluated and the infaatmation.submitted ht this
pdri {Cpml?itange FepoFt �1IV=58A) i Iru� arY( trr[)ptete to.tli 6�f pit irk krlo+ilt edge.
-4
ofPeite (orateJ�Jmaturem
GW-59A 12t13/2003

Meritech, Inc.
Environmental Laboratory
Laboratory Certification No.165
Page 1
Contact: James Boles Report Date: 4/6/2022
Client: Louisiana-Pacific Corp. NPDES#: NCO005266
1068 ABTCO Rd Land App. Permit#: WQ0000461
North Wilkesboro, NC 28659 Date Sample Rcvd: 3/23/2022
Meritech Work Order # 03232242 Sample: DSI-MW1 Grab
3122/22
parame=
Result
Date
Reporting Limit
Method
Total Dissolved Solids
118 mg/L
3/24/22
10 mg/L
SM 2540C
Chloride
1.5 mg/L
3/29/22
0.5 mg/L
SM 4500 C1 B
Ammonia, Nitrogen
<0.1 mg/L
3/24122
0.1 mg/L
EPA 350.1
Nitrate, Nitrogen
30.8 mg/L
3/24/22
0.10 mg/L
EPA 353.2
Phosphorus, total
<0.020 mg/L
4/4/22
0.020 mg/L
EPA 200.7
Meritech Work Order # 03232243 Sample: DSI-MW3 Grab
3/22/22
Parameters
Resu Analysis Date
RepalffnUrnit
Method
Total Dissolved Solids
52 mg/L 3/24/22
10 mg/L
5M 2540C
Chloride
<0.5 mg/L 3/29/22
0.5 mg/L
SM 4500 C1 B
Ammonia, Nitrogen
c0.1 mg/L 3/24/22
0.1 mg/L
EPA 350.1
Nitrate, Nitrogen
0.90 mg/L 3/24/22
0.10 mg/L
EPA 353.2
Phosphorus, total
0.059 mg/L 4/4/22
0.020 mg/L
EPA 200.7
Meritech Work Order # 03232244 Sample: DSI-MW4 Grab
3/22/22
garameW Rcs& AlkaWls Date RepailingLLMIt Method
Total Dissolved Solids
121 mg/L
3/24/22
10 mg/L
SM 2540C
Chloride
<0.5 nng/L
3/29/22
0.5 mg/L
SM 4500 C1 B
Ammonia, Nitrogen
<0.1 mg/L
3/24/22
0.1 mg/L
SPA 350.1
Nitrate, Nitrogen
4.57 mg/L
3/24/22
0.10 mg/L
EPA 353.2
Phosphorus, total
<0.020 mg/L
4/4/22
0.020 mg/L
EPA 200.7
642 Tamco Road, Reidsville, forth Carolina 27320
teL[phone] fax.[phone]

Meritech, Inc.
_ Environmental Laboratory
Laboratory Certification No.165
Page 2
Contact; James Boles ReportDate; 4/4/2022
Client: Louisiana-Pacific Corp. NPDES#: NCO005266
1068 AHTCO Rd Land App. Permit#: WQ0000461
North Wilkesboro, NC 28659 Date Sample Rcvd: 3/23/2022
Meritech Work Order # 03232245 Sample: DSI-MW5 Grab 3/22/22
Parameters R e t An@I '; Date R=gjfing Lim Mood
Total Dissolved Solids
174 mg/L
3/24/22
10 mg/L
SM 2540C
Chloride
<0.5 mg/L
3/29/22
0.5 mg/L
SM 4500 Cl B
Ammonia, Nitrogen
<0.1 mg/L
3/24/22
0.1 mg/L
EPA 350.1
Nitrate, Nitrogen
19.0 mg/L
3/24/22
0.10 mg/L
EPA 353.2
Phosphorus, total
<0.020 mg/L
4/4/22
0.020 mg/L
EPA 200.7
Meritech Work Order # 03232246 Sample: DSI-MW6 Grab 3/22/22
Parameters AnWMs Date Re, grant-Urnit Method
Total Dissolved Solids
138 mg/L
3/24/22
10 mg/L
SM 2540C
Chloride
1.5 mg/L
3/29/22
0.5 mg/L
SM 4500 C1 B
Ammonia, Nitrogen
0.6 mg/L
3/24/22
0.1 mg/L
EPA 350.1
Nitrate, Nitrogen
<0.10 mg/L
3/24/22
0.10 mg/L
EPA 353.2
Phosphorus, total
0.536 mg/L
4/4/22
0.020 mg/L
EPA 200.7
Meritech Work Order # 03232247 Sample: DS1-MW9 Grab
3/22/22
Param
Result
Qhgivsis Date
Bgpordng Limit
Meihad
Total Dissolved Solids
155 mg/L
3/24/22
10 mg/L
SM 2540C
Chloride
1.5 mg/L
3/29/22
0.5 mg/L
SM 4500 Cl B
Arnmonia, Nitrogen
<0.1 mg/L
3/24/22
0.1 mg/L
EPA 350.1
Nitrate, Nitrogen
15.6 mg/L
3/24/22
0.10 mg/L
EPA 353.2
Phosphorus, total
<0.020 mg/L
4/4/22
0.020 tng/1.
EPA 200.7
I hereby certify than I have rcWewed and approve these datm
642 Tamea Road, Reidsville, North Carolina 27320
teL[phone]i.[phone]

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GW-59A COMPLIANCE REPORT FORM Permit # JJ& 0000%1
(Submit one each monitoring period with GW-59 forms.)
1
Enter date monitoring results were due. Will this monitoring report (GW-59 and GW-59A)
YES
OV
be submitted after the established due date?
2
Was any required information missing on the GW-59 report forms?
YES
IF the answer to question I or 2 is 'YES", list in the space provided below the well identification number(s) and
explain the problems encountered in obtaining the required information.
3
Are any of the monitor wells in need of repair or maintenance (damaged casing, unlocked or missing cap, missing
YES
gp
identification plate, area overgrown, etc.)? If the answer is "Yes ", contact the Regional Officefor guidance.
4
Are any monitored constituents equal to or above the established standards?
NO
If the answer to question 4 is "NO" skip to section B.
If the answer to question 4 is "YES"list the affected wells individually with constituent(s) and concentration(s)
exceeding standards in the space provided below.
t5x- pvtj t tct n/ ( rule 9 t� r�2ylt
T)5T AW ,S t to, Y rhg/I
5
For the constituents identified in question 4 above, have standards been exceeded previously for the
NO
same constituent(s) in the same well(s) in the last two years?
If the answer to question 5 is "NO", skip to section 8.
If the answer to question 5 is "YES", list in the space provided below, each well with constituents) exceeding
standards, concentrations) reported, and sample collection d to for each occurre c�e for the last two years).
`2)SI-MWI 6,3 31V16 � �mW�
vY►g1)
)5Z-H4W a r"�t� /1Z8
3
D5T-tMv c clIZ-91-RI
6
Are the monitoring wells listed in section 5 located at or beyond the review boundary?
NO
If the answer is "YES", a groundwater quality problem maybe occurring. CONTACT THE REGIONAL
OFFICE IMMEDIATELY FOR GUIDANCE. If the answer is "NO", monitoring wells maybe improperly
located; contact the Regional Office.
7
Is the permittee implementing previously approved actions required by the Division involving this
dv
NO
groundwater quality problem?
If the answer to question 7 is "YES", describe those actions in the space provided below.
If the answer to question 7 is "NO" contact the Regional Office within 90 days: an evaluation may be
re uired to determine the impact the waste disposal system is having at the review and compliance
boundaries surrounding this facility. Failure to do so may subiect the permittee to a Notice of Violation,
ones, and/or penalties. k
av La^d 4Mjjqjj9v► ewu«� �� the s 11 g a;m st,tc�c-
+4►w+,.0 l 5r � W u44 r Movv 6rf,1,5
k ?Van^ was Su&6"�40J In
S
The person completing this portion (GW-59A) of the monitoring report should sign below and submit this
form with GW-59 forms for required wells to the address provided at the top of the current GW-59 form.
I hereby acknowledge that the above information was evaluated and the Information submitted in this
report (Compliance Report GIN-59A) is true and complete to the best of my knowledge.
-L. L&r
nature of ermittee (,,Authorized Agent) DitG
GW-59A 12/8/2003

Meritech, Inc.
Environmental Laboratory
s
Laboratory Certification No.165
Page 3
Contact: James Boles Report Date: 10/12/2022
Client: Louisiana-Pacific Corp. NPDES#: NCO005266
1068 ABTCO Rd LandApp_ Permit#: WQ0000461
North Wilkesboro, NC 28659 Date Sample Rcvd: 9/29/2022
Meritech Work Order # 09292224 Sample: DSl-MW6 Grab 9/28/22
Parameters Result Analysis Date RepaEUne Limi Method
Total Dissolved Solids
53 mg/L
10/5/22
10 nag/L
SM 2540C
Chloride
1.5 mg/L
10/10/22
0.5 mg/L
SM 4500 Cl B
Ammonia, Nitrogen
0.6 mg/L
10/4/22
0.1 mg/L
EPA 350A
TKN
0.50 mg/L
10/5/22
0.20 mg/L
EPA 351A
Nitrate/Nitrite, Nitrogen
<0.10 mg/L
9/30/22
0.10 mg/L
EPA 353.2
Nitrogen, total
0.50 mg/L
10/5/22
0.20 mg/L
EPA 353.2
Phosphorus, total
0.263 mg/L
10/11/22
0.020 mg/L
EPA 200.7
8260
Attached
10/4/22
-
EPA 8260
Meritech Work Order # 09292225 Sample: DS1-MW9 Grab 9/28/22
Parameters Result Analysis Date Reporting Limit Method
Total Dissolved Solids
190 mg/L
10/5/22
10 mg/L
SM 2540C
Chloride
1.5 mg/L
10/10/22
0.5 mg/L
SM 4500 Cl B
Ammonia, Nitrogen
<0A mg/L
10/4/22
0.1 mg/L
EPA 350.1
TKN
<0.20 mg/L
10/5/22
0.20 mg/L
EPA 351.1
Nitrate/Nitrite, Nitrogen
12.4 mg/L
9/30/22
0.10 mg/L
EPA 353.2
Nitrogen, total
12.4 mg/L
10/5/22
0.20 mg/L
EPA 353.2
Phosphorus, total
<0.020 mg/L
10/11/22
0.020 mg/L
EPA 200.7
8260
Attached
10/4/22
-
EPA 8260
1 hereby certify that ! have reviewed and approve these data.
Laboratory Representative
642 Tamco Road, Reidsville, North Carolina 27320
teL[phone] lax.[phone]

MERITECH, INC.
Environmental Laboratories
- A Division of Water Technology and Controls, Inc.
Client: Louisiana Pacific Corp. Meritech ID#: 09292220
Project: LA GWM Analysis: 10/04/22
Client Sample ID: DSI-MWI Analyst: VWV
Sample Collection: 09/28/22 Dilution Factor: 1
SW-846-8260 VOLATILE ORGANICS - Water
Acetone
< 5.00 ug/L
cis-1,3-Dichloropropene
< 0.500 ug/L
Acrylonitrile
< 5.00 ug/L
trans-1,3-Dichloropropene
< 0.500 ug/L
Benzene
< 0.500 ug/L
Ethanol
< 50.0 ug/L
Bromodichloromethane
< 0.500 ug/L
Ethyl benzene
< 0.500 ug/L
Bromochloromethane
< 0.500 ug/L
Hexachlorobutadiene
< 0.500 ug/L
Bromoform
< 0.500 ug/L
2-Hexanone
< 1.00 ug/L
Bromomethane
< 0.500 ug/L
Isopropylbenzene
< 0.500 ug/L
2-Butanone (MEK)
< 5.00 ug/L
p-Isopropyltoluene
< 0.500 ug/L
n-Butylbenzene
< 0.500 ug/L
Methylene chloride
< 0.500 ug/L
sec-Butylbenzene
< 0.500 ug/L
MethIy Isobutyl Ketone (MIBK)
< 0.500 ug/L
Carbon disulfide
< 0.500 ug/L
Methyl iodide
< 0.500 ug/L
Carbon Tetrachloride
< 0.500 ug/L
Naphthalene
< 0.500 ug/L
Chlorobenzene
< 0.500 ug/L
n-Propylbenzene
< 0.500 ug/L
Chloroethane
< 0.500 ug/L
Styrene
< 0.500 ug/L
Chloroform
<0.500 ug/L
1, 1, 1,2-Tetrachloroethane
<0.500 ug/L
Chloromethane
<0.500 ug/L
1,1,2,2-Tetrachloroethane
<0.500 ug/L
2-Chlorotoluene
< 0.500 ug/L
Tetrachloroethene (PCE)
< 0.500 ug/L
4-Chlorotoluene
< 0.500 ug/L
Toluene
< 0.500 ug/L
Dibromochloromethane
<0.500 ug/L
1,1,1-Trichloroethane
<0.500 ug/L
1,2-Dibromo-3-chloropropane
< 0.500 ug/L
1,1,2-Trichloroethane
< 0.500 ug/L
1,2-Dibromoethane (EDB)
< 0,500 ug/L
Trichloroethene (TCE)
< 0.500 ug/L
Dibromomethane
< 0.500 ug/L
1,2,3-Trichlorobenzene
< 0.500 ug/L
Dichlorodifluoromethane
< 0.500 ug/L
1,2,4-Trichlorobenzene
< 0.500 ug/L
I,1-Dichloroethane
< 0.500 ug/L
1,2,3-Trichloropropane
< 0.500 ug/L
1,2-Dichloroetiaane
< 0.500 ug/L
Trichlorofluoromethane
< 0.500 ug/L
1,4-Dichlorobenzene
< 0.500 ug/L
1,2,4-Trimethylbenzene
< 0.500 ug/L
1,2-Dichlorobenzene
< 0.500 ug/L
1,3,5-Trimethylbenzene
< 0.500 ug/L
1,3-DichIorobenzene
< 0.500 ug/L
Vinyl acetate
< 1.00 ug/L
l,l-Dichloroethene
< 0.500 ug/L
Vinyl chloride
<0.005 ug/L
cis-1,2-Dichloroethene
< 0.500 ug/L
mlp-Xylenes
< 1.00 ug/L
trans-1,2 Dichloroethene
< 0.500 ug/L
o-Xylene
< 0.500 ug/L
trans-1,4-Dichloro-2-butene
<0.500 ug/L
1,2-Dichloropropane
< 0.500 ug/L
1,3-Dichloropropane
< 0.500 ug/L
1, 1 -Dichloropropene
< 0.500 ug/L
1,2-Dichloropropene
< 0.500 ug/L
I hereby certify that I have reviewed and approve these data. Laboratory Rep
642 Tamco Road * Reidsville, NC 27320
[phone] Ph * [phone] Fax

MERITECH, INC.
Environmental Laboratories
"^
A Division of Water Technology and Controls, Inc.
Client
Louisiana Pacific Corp. Meritech ID#:
09292220
Project:
LA GWM
Analysis:
10/04/22
Client Sample ID:
DSI-MW1
Analyst:
VWV
Sample Collection:
09/28/22
Dilution factor:
1
Sample Volume:
5ml purge
Report Date:
10/10/22
% solid
NIA
Batch Blank = Below Reporting Limit
Ms. / No
Internal Standards method criteria acceptable
es / No
Surrogate Recoveries Spike Conc
Spike Recovery
Units
Dibromofluoromethane
30 ug/L
112%
51-141%
Toluene-d8
30 ug/L
92%
67-151%
Bromofluorobenzene
30 uglL
88%
44-161%
Laboratory QC Check
Matrix Spike Recoveries Acceptable
Soike Compound Spike Conc Spike %Rec
l,I-Dichloroethene
25 ug1L
44%
Benzene
25 ug/L
63%
Trichloroethene
25 ug/L
74%
Toluene
25 ug/L
87%
Chlorobenzene
25 ug/L
90%
# - Fails Limit Check
* - If "no" is selected, see third page for details.
(Yes ) / No
Duplicate % Ree.
RPD RPD Limits QC Limits
44%
1
20
40-110
70%
11
20
45-118
80%
7
20
45-120
94%
8
20
62-120
99%
I0
20
45-112
1 hereby certify that I have reviewed and approve these data-
C, �
Laboratory Representative
642 Tamco Road * Reidsville, NC 27320
[phone] Rh * [phone] Fax

Client:
Project:
Client Sample ID:
Sample Collection:
MERITECH, INC.
Environmental Laboratories
A Division of Water Technology and Controls, Inc.
Louisiana Pacific Corp. Meritech ID#: 09292220tb
LA GWM
Trip Blank
09/28/22
Analysis: 10/04/22
Analyst: VW
Dilution Factor: 1
SW-846-8260 VOLATILE ORGANICS -Water
Acetone
< 5.00 ug/L
cis-1,3-Dichloropropene
< 0.500 ug/L
Acryionitrile
< 5.00 ug/I,
trans-1,3-Dichloropropene
< 0.500 ug/L
Benzene
< 0.500 ug/L
Ethanol
< 50.0 ug/L
Bromodichloromethane
< 0.500 ug/L
Ethyl benzene
< 0.500 ug/L
Bromochloromethane
< 0.500 ug/L
Hexachlorobutadiene
< 0.500 ug/L
Bromoform
< 0.500 ug/L
2-Hexanone
< 1.00 ug/L
Bromomethane
< 0.500 ug/L
Isopropylbenzene
< 0.500 ug/L
2-Butanone (MEK)
< 5.00 ug/L
p-Isopropyltoluene
< 0.500 ug/L
n-Butylbenzene
< 0.500 ug/L
Methylene chloride
< 0.500 ug/L
sec-Butylbenzene
< 0.500 ug/L
Methyy lsobutyl Ketone (MMK)
< 0.500 ug/L
Carbon disulfide
< 0.500 ug/L
Methyl iodide
< 0.500 ug/L
Carbon Tetrachloride
< 0.500 ug/L
Naphthalene
< 0.500 ug/L
Chlorobenzene
< 0.500 ug/L
n-Propylbenzene
< 0.500 ug/L
Chioroethane
< 0.500 ug/L,
Styrene
< 0.500 ug/L
Chloroform
<0.500 ug/L
1,1,1,2-Tetrachloroethane
<0.500 ug/L
Chloromethane
< 0.500 ug/L,
1,1,2,2-Tetrachloroethane
< 0.500 ug/L
2-Chlorotoluene
< 0.500 ug/L
Tetrachloroethene (PCE)
< 0.500 ug/L
4-Chlorotoluene
< 0.500 ug/L
Toluene
< 0.500 ug/L
Dibromochioromethane
< 0.500 ug/L
1,1,1-Trichloroedwe
< 0.500 ug/L
1,2-Dibromo-3-chloropropane
< 0.500 ug/L
1,1,2-Trichloroethane
< 0.500 ug/L
1,2-Dibromoethane (EDB)
< 0.500 ug/L
Trichloroethene (TCE)
< 0.500 ug/L
Dibromomethane
< 0.500 ug/L
1,2,3-Trichlorobenzene
< 0.500 ug/L
Dichloroditluoromethane
< 0.500 ug/L
1,2,4-Trichlorobenzene
< 0.500 ug/L
1,1-Dichloroethane
<0.500 ug/L
1,2,3-Trichloropropane
<0.500 ug/L.
1,2-Dichloroethane
< 0.500 ug/L
Trichlorofluoromethane
< 0.500 ug/L
1,4-Dichlombenzene
<0.500 ug/L
1,2,4-Trimethylbenzene
<0.500 ug/L
1,2-Dichlorobenzene
<0.500 ug/L
1,3,5-Trimethylbenzene
<0.500 ug/L
1,3-Dichlorobenzene
< 0.500 ug/L
Vinyl acetate
< 1.00 ug/L
1,I-Dichloroethene
<0.500 ug/L
Vinyl chloride
<0.005 ug/L
cis-1,2-Dichloroethene
< 0.500 ug/L
m/p-Xylenes
< 1.00 ug/L
trans-1,2-Dichloroethene
< 0.500 ug/L
o-Xylene
< 0.500 ug/L
trans-1,4-Dichloro-2-butene
<0.500 ug/L
1,2-Dichloropropane
< 0.500 ug/L
1,3-Dichloropropane
< 0.500 ug/L.
1,1-Dichloropropene
< 0.500 ug/L
1,2-Dichloropropene
<0.500 ug/L
I hereby certify that I have reviewed and approve these data.
Labo tory Re alive
642 Tamco Road * Reidsville, NC 27320
[phone] Ph * [phone] Fax

MERITECH, INC.
Environmental Laboratories
A Dir►ision of Water Technology and Controls, Inc_
Client:
Louisiana Pacific Corp.
Project:
LA GWM
Client Sample ID:
Trip Blank
Sample Collection:
09/28/22
Sample Volame:
5ml purge
% solid
N/A
Meritech ID#: 09292220tb
Analysis: 10/04/22
Analyst: VWV
Dilution Factor: 1
Report Date: 10/10/22
Batch Blank = Below Reporting Limit Yes / No
Internal Standards method criteria acceptable es / No
Surrogate Recoveries Spike Cone Spike Recovery Limits
Dibromofluoromethane 30 ug/L 106% 51-141%
Toluene-d8 30 ug/L 88% 67-151%
Bromofluorobenzene 30 ug/L 89% 44-161%
Laboratory QC Check
Matrix Spike Recoveries Acceptable
Spike Compound Spike Cone Spike %Rec.
1,1-Dichloroethene
25 ug/L
44°%
Benzene
25 ug/L
63%
Trichloroethene
25 ug(L
74%
Toluene
25 ug/L
87%
Chlorobenzene
25 ug/L
90%
# - Fails Limit Check
* -1f "no" is selected, see third page for details.
es / No
Duplicate % Rec.
RPD RPD Limits QC Limits
44%
1
20
40-110
70%
11
20
45-118
80%
7
20
45-120
94%
8
20
62-120
99%
10
20
45-112
I hereby certify that I have reviewed and approve these data.
Laboratory r ntative
642 Tameo Road * Reidsville, NC 27320
[phone] Ph - [phone] Fax

MERITECH, INC.
Environmental Laboratories
' A Division of Water Technology and Controls, Inc.
Client: Louisiana Pacific Corp. Meritech IDN: 09292221
Project: LA GWM Analysis: 10/04/22
Client Sample ID: DSI MW3 Analyst: VWV
Sample Collection: 09/28/22 Dilution Factor: 1
SW-846-8260 VOLATILE ORGANICS -Water
Acetone
< 5.00 ug/L
cis-1,3-Dichloropropene
< 0.500 ug/L
Acrylonitrile
< 5.00 ug/L
trans-1,3-Dichloropropene
< 0.500 ug/L
Benzene
< 0.500 ug/L
Ethanol
< 50.0 ug/L
Bromodichloromethane
< 0.500 ug/L
Ethyl benzene
< 0,500 ug/L
Bromochloromethane
< 0500 ug/L
Hexachlorobutadiene
< 0.500 ug/L
Brornofonn
< 0.500 ug/L
2-Hexanone
< 1.00 ug/L
Bromomethane
< 0.500 ug/L
Isopropylbenzene
< 0.500 ug/L
2-Butanone (MM)
< 5.00 ug/L
p-Isopropyltoluene
< 0.500 ug/L
n-Butylbenzene
< 0.500 ug/L
Methylene chloride
< 0.500 ug/L
sec-Butylbenzene
< 0.500 ug/L
Methyy Isobutyl Ketone (MIBK)
< 0.500 ug/L
Carbon disulfide
< 0.500 ug/L
Methyl iodide
< 0.500 ug/L
Carbon Tetrachloride
< 0.500 ug/L
Naphthalene
< 0.500 ug/L
Chlorobenzene
< 0.500 ug/L
n Propylbenzene
< 0.500 uglL
Chloroethane
< 0.500 ug/L
Styrene
< 0.500 ug/L
Chloroform
< 0.500 ug/L
1, 1, 1,2-Tetrachloroethane
< 0.500 ug/L
Chloromethane
<0.500 ug/L
1,1,2,2-Tetra.chloroethane
<0.500 ug/L
2-Chlorotoluene
< 0.500 ug/L
Tetrachloroethene (PCE)
< 0.500 ug/L
4-Chlorotoluene
< 0.500 ug/L
Toluene
< 0.500 ug/L
Dibromochloromethane
< 0.500 ug/L
1, 1, I-Trichloroethane
< 0.500 ug/L
1,2-Dibromo-3-chloropropane
< 0.500 ug/L
1,1,2-Trichloroethane
< 0.500 ug/L
1,2-Dibromoethane (EDB)
< 0.500 ug/L
Trichloroethene (TCE)
< 0.500 ug/L
Dibromomethane
< 0.500 ug/L
1,2,3-Trichlorobenzene
< 0.500 ug/L
Dichlorodifluoromethane
< 0.500 ug/L
1,2,4-Trichlorobenzene
< 0.500 ug/L
1,1-Dichloroethane
< 0.500 ug/L
1,2,3-Trichloropropane
< 0.500 ug/L
1,2-Dichloroethane
< 0.500 ug/L
Trichlorofluoromethane
< 0.500 ug/L
1,4-Dichlorobenzene
< 0.500 ug/L
I,2,4-Trimethylbenzene
< 0.500 ug/L
1,2-Dichlorobenzene
< 0.500 ug/L
1,3,5-Trimethylbenzene
< 0.500 ug/L
I,3-Dichlorobenzene
< 0.500 ug/L
Vinyl acetate
< 1.00 ug/L
I,1-Dichloroethene
< 0.500 ug/L
Vinyl chloride
< 0.005 ug/L
cis-1,2-Dichloroethene
< 0.500 ug/L
m/p-Xylenes
< 1.00 ug/L
trans-1,2-Dichloroethene
< 0.500 ug/L
o-Xylene
< 0.500 ug/L
trans-1,4-Dichloro-2-butene
< 0.500 ug/L
1,2-Dichloropropane
< 0.500 ug/L.
1,3-Dichloropropene
< 0.500 ug/L
I, I-Dichloropropene
< 0.500 ug/L
1,2-Dichloropropene
< 0.500 ug/L
I hereby certify that I have reviewed and approve these data. Laboratory Repf
642 Tamco Road * Reidsville, NC 27320
[phone] Ph * [phone] Fax

MERITECH, INC.
Environmental Laboratories
A Division of Water Technology and Controls, Inc.
Client: Louisiana Pacific Corp.
Meritech ID#:
09292221
Project: LA GWM
Analysis:
10/04/22
Client Sample ID: DSI-MW3
Analyst:
VWV
Sample Collection: 09/28/22
Dilution Factor:
1
Sample Volume: 5rn1 purge
Report Date:
10/10/22
% solid N/A
Batch Blank = Below Reporting Limit
es / No
Internal Standards method criteria acceptable
ffesJ/ No
Surroeate Recoveries Spike Conc
Spike Recovery
Limits
Dibromofluoromethane 30 ug/L
115%
51-141%
Toluene-dg 30 ug/L
94%
67-151%
Bromofluorobenzene 30 ug/L
91%
44-161%
Laboratory QC Check
Matrix S ike Recoveries Acceptable
Spike Compound Spike Conc Spike %Rec.
1,1-Dichloroethene
25 ug/L
44%
Benzene
25 ug/L
63%
Trichloroethene
25 ug/L
74%
Toluene
25 ug/L
87%
Chlorobenzene
25 ug/L
90%
# - Fails Limit Check
* - If "no" is selected, see third page for details.
(Yes )/ No
Duplicate % Rec.
RPD RPD Limits OC Limits
44%
1
20
40-110
70%
11
20
45-118
80%
7
20
45-120
94%
8
20
62-120
99%
10
20
45-112
I hereby certify that I have reviewed and approve these data..
Laboratory Representative
642 Tamco Road * Reidsville, NC 27320
[phone] Ph * [phone] Fax

MERITECH, INC.
Environmental Laboratories
A Division of Water Technology and Controls, Inc.
Client:
Louisiana Pacific Corp. Meritech IIM 09292222
Project:
LA GWM Analysis: 10/04/22
Client Sample ID:
DSI-MW4 Analyst: VWV
Sample Collection:
09/28/22 Dilution Factor: 1
SW-846-8260 VOLATILE ORGANICS - Water
Acetone
< 5.00 ug/L
cis-1,3-Dichloropropene
< 0.500 ug/L
Acrylonitrile
< 5.00 ug/L
trans-1,3-Dichloropropene
< 0.500 ug/L
Benzene
< 0.500 ug/L
Ethanol
< 50.0 ug/L
Bromodichloromethane
< 0.500 ug/L
Ethyl benzene
< 0.500 ug/L
Bromochloromethane
< 0.500 ug/L
Hexachlorobutadiene
< 0.500 ug/L.
Bromoform
< 0.500 ug/L
2-Hexanone
< 1.00 ug/L
Bromomethane
< 0.500 ug/L
Isopropylbenzene
< 0.500 ug/L
2-Butanone (IV EK)
< 5.00 ug/L
p-Isopropyltoluene
< 0.500 ug/L
n-Butylbenzene
< 0.500 ug/L
Methylene chloride
< 0.500 ug/L
see-Butylbenzene
< 0,500 ug/L
Methly Isobutyl Ketone (MIBK)
< 0.500 ug/L
Carbon disulfide
< 0.500 ug/L
Methyl iodide
< 0.500 ug/L
Carbon Tetrachloride
< 0.500 ug/L
Naphthalene
< 0.500 ug/L
Chlorobenzene
< 0.500 ug/L
n-Propylbenzene
< 0.500 ug/L
Chloroethane
< 0.500 ug/L
Styrene
< 0.500 ug/L
Chloroform
<0.500 ug/L
1,1,1,2-Tetrachloroethane
<0.500 ug/L
Chloromethane
< 0.500 ug/L
1,1,2,2-Tetrachloroethane
< 0.500 ug/L
2-Chlorotoluene
< 0.500 ug/L
Tetrachloroethene (PCE)
< 0.500 ug/L
4-Chlorotoluene
< Q.500 ug/L
Toluene
< 0.500 ug/L,
Dibromochloromethane
< 0.500 ug/L
1,1,1-Trichlaroethane
< 0.500 ug/L
1,2-Dibrorao-3-chloropropane
< 0.500 ug/L
1,1,2-Trichloroethane
< 0.500 ug/L
1,2-Dibromoethane (EDB)
< 0.500 ug/L
Trichloroethene (TCE)
< 0.500 ug/L
Dibromomethane
< 0.500 ug/L
1,2,3-Trichlorobenzene
< 0.500 ug/L
Dichloroditluoromethane
< 0.500 ugfL
1,2,4-Trichlorobenzene
< 0.500 ug/L
1,1-Dichloroeffi ne
< 0.500 ug/L
1,2,3-Trichloropropane
< 0.500 ug/L
1,2-Dichloroethane
< 0.500 ug/L
Trichlorofluoromethane
< 0.500 ug/L
1,4-Dichlorobenzene
< 0.500 ug/L
1,2,4-Trimethylbenzene
< 0.500 ug/L
1,2 Dichlorobenzene
< 0.500 ug/L
1,3,5-Trhnethylbenzene
< 0.500 ug/L
1,3-Dichlorobenzene
< 0.500 ug/L
Vinyl acetate
< 1.00 ug/L
I, I-Dichloroethene
< 0.500 ug/L
Vinyl chloride
< 0.005 ug/L
cis-1,2-Dichloroethene
< 0.500 ug/L
m/p-Xylenes
< 1.00 ug/L
trans-1,2-DichIoroethene
< 0.500 ug/L
o-Xylene
< 0.500 ug/L
trans-1,4-Dichloro-2-butene
< 0.500 ug/L
1,2-Dichloropropane
< 0.500 ug/L
1,3-Dichloropropane
< 0.500 ug/L
1,1-Dichloropropene
< 0.500 ug/L.
1,2 Dichloropropene
< 0.500 ug/L
I hereby certify that I have reviewed and approve these data.
642 Tamco Road * Reidsville, NC 27320
[phone] Ph * [phone] Fax

MERITECH, INC..
Environmental Laboratories
-�
A Division of Water Technology and Controls, Inc.
Client:
Louisiana Pacific Corp. Meritech ID#: 09292222
Project:
LA GWM
Analysis: 10/04/22
Client Sample ID:
DST-MW4
Analyst: VWV
Sample Collection:
09/28/22
Dilution Factor: 1
Sample Volume:
5ml purge
Report Date: 10/10/22
% solid
N/A
Batch Blank = Below Reporting Limit
es / No
Internal Standards method criteria acceptable
es / No
Surrogate Recoveries
Spike Conc
Spike Recovery Limits
Dibromofluoromethane
30 ug/L.
123% 51-141%
Toluene-d8
30 ug/L
96% 67-151%
Bromofluorobenzene
30 ug/L.
93% 44-161%
Laboratory QC Check
Matrix S ike Recoveries Acceptable
Spike Compound Spike Conc Spike %Rec
1,1-Dichloroethene
25 ug/L
44%
Benzene
25 ug/L
63°%
Trichloroethene
25 ug/L
74%
Toluene
25 ug/L.
87%
Chlorobenzene
25 ug/L
90%
# - Fails Limit Check
* - If "no" is selected, see third page for details.
es / No
Duplicate %Rec.
RPD R.PD Limits OC Limits
44%
1
20
40-110
70%
11
20
45-118
8O%
7
20
45-120
94%
8
20
62-120
99%
10
20
45-1 U
I hereby certify that 1 have reviewed and approve these data.
Laboratory Rep tive
642 Tamco Road * Reidsville, NC 27320
[phone] Ph * [phone] Fax

MERITECH, INC.
Environmental Laboratories
A DiVision of Water Technology and Controls, Inc.
Client:
Louisiana Pacific Corp. Meritech ID#: 09292223
Project:
LA GWM Analysis: 10/04/22
Client Sample ID:
DSI-MW5 Analyst: VWV
Sample Copection:
09/28/22 Dilution Factor: I
SW-846-8260 VOLATILE ORGANICS - Water
Acetone
Acrylonitriile
Benzene
Bromodichloromethane
Bromochloromethane
Brornoform
Bromomethane
2-Butanone (MEK)
n-Butylbenzene
sec-Butylbenzene
Carbon disulfide
Carbon Tetrachloride
Chlorobenzene
Chloroethane
Chloroform
Chloromethane
2-Chlorotoluene
4-Chlorotoluene
Dibromochloromethane
1,2-Dibromo-3-chloropropane
1,2-Dibromoethane (EDB)
Dibromomethane
Dichlorodifluoromethane
I,I-Dichloroethane
1,2-Dichloroethane
1,4-Dichlorobenzene
1,2-Dichlorobenzene
1,3-Dichlorobenzene
1,1-Dichloroethene
cis-1,2-Dichloroethene
trans- I,2-Dichloroethene
trans-I,4-Dichloro-2-butene
1,2-Dichloropropane
1,3-Dichloropropane
I,I-Dichloropropene
1,2-Dichloropropene
< 5.00 ug/L
< 5.00 ug/L
< 0.500 ug/L
< 0.500 ug/L
< 0.500 ug/L
< 0.500 ug/L
< 0.500 ug/L
< 5.00 ug/L
< 0.500 ug/L
< 0.500 ug/L
< 0.500 ug/L
< 0.500 ug/L
< 0.500 ug/L
< 0.500 ug/L
< 0.500 ug/L
< 0500 ug/L
< 0.500 ug/L
< 0.500 ug/L
< 0.500 ug/L
< 0.500 ug/L
< 0.500 ug/L
< 0.500 ug/L
< 0.500 ug/L
< 0.500 ug/L
< 0.500 ug/L
< 0.500 ug/L
< 0.500 ug/L
< 0.500 ug/L
< 0.500 ug/L
< 0,500 ug/L
< 0.500 ug/L
< 0.500 ug/L
< 0.500 ug/L
< 0.500 ug/L
< 0.500 ug/L
< 0.500 ug/L
cis-1,3-Dichloropropene
trans-1,3-Dichloropropene
Ethanol
Ethyl benzene
Hexachlorobutadiene
2-Hexanone
Isopropylbenzene
p-Isopropyltoluene
Methylene chloride
Methly Isobutyl Ketone (MIBK)
Methyl iodide
Naphthalene
n-Propylbenzene
Styrene
1, 1, 1,2-Tetrachloroethane
1,1,2,2-Tetrachloroethane
Tetrachloroethene (PCE)
Toluene
1, 1, 1 -Trichloroethane
1,1,2-Trichloro ethane
Trichloroethene (TCE)
1,2,3-Trichlorobenzene
1,2,4-Trichlorobenzene
1,2,3-Trichloropropane
Trichlorofluoromethane
1,2,4-Trimethylbenzene
1, 3, 5-Trimethylb enzene
Vinyl acetate
Vinyl chloride
m/p-Xylenes
o-Xylene
I hereby certify that I have reviewed and approve these data.
< 0.500 ug/L
< 0500 ug/L
< 50.0 ug/L
< 0.500 ug/L
< 0.500 ug/L
< 1.00 uglL
< 0.500 ug/L
< 0.500 ug/L
< 0.500 ug/L
< 0.500 ug/L
< 0.500 ug/L
< 0.500 ug/L
< 0.500 ug/L
< 0.500 ug/L
< 0.500 ug/L
< 0.500 ug/L
< 0.500 ug/L
< 0.500 ug/L
< 0.500 ug(L
< 0.500 ug/L
< 0.500 ug/L
< 0.500 ug/L
< 0.500 ug/L
< 0.500 ug/L
< 0.500 ug/L
< 0.500 ug/L
< 0.500 ug/L
< 1.00 ug/L
< 0.005 ug/L
< 1.00 ug/L
< 0.500 ug/L
642 Tamco Road * Reidsville, NC 27320
[phone] Ph * [phone] Fax

MERITECH, INC.
Environmental Laboratories
A Division of Water Technology and Controls, Inc.
Client:
Louisiana Pacific Corp. Meritech ID#: 09292223
Project:
LA GWM
Analysis: 10/04/22
Client Sample ID:
DSI-MW5
Analyst: VWV
Sample Collection:
09/28/22
Dilution Factor: 1
Sample Volume:
5m] purge
Report Date: 10/10/22
% solid
NIA
Batch Blank = Below Reporting Limit es / No
Internal Standards method criteria acceptable es /No
Surrogate Recoveries
Spike Conc
Spike Recovery
Limits
Dibromofluoromethane
30 ug/L
121°%
51-141%
Toluene-d8
30 ug/L
96%
67-151%
Bromo#luorobenzene
30 ug/L
91%
44-161%
Laboratory QC Check
Matrix Spike Recoveries Acceptable
Spike Compound Spike Cone Spike %Rec.
1,1-Dichloroethene
25 ug/L
44%
Benzene
25 ug/L
63%
Trichloroethene
25 ug/L
74°%
Toluene
25 ug/L
87%
Chlorobenzene
25 ug/L
90%
# - Fails Limit Check
* - If "no" is selected, see third page for details.
(Yes )1 No
Duplicate % Rec.
RPD RPD Limits
QC Limits
44%
I
20
40-110
70%
11
20
45-118
80°%
7
20
45-120
94%
8
20
62-120
99%
10
20
45-112
I hereby certify that I have reviewed and approve these data.
Laboratory Representative
642 Tamco Road * Reidsville, NC 27320
[phone] Ph * [phone] Fax

Client:
Project:
Client Sample M:
Sample Collection:
MERITECH, INC.
Environmental Laboratories
A Division of Water Technology and Controls, Inc.
Louisiana Pacific Corp. Meritech HW: 09292224
LA GWM
DST-MW6
09/28/22
Analysis:
Analyst:
Dilution Factor:
SW-846-8260 VOLATILE ORGANICS - Water
Acetone
Acrylonitrile
Benzene
Bromodichloromethane
Bromochloromethane
Bromoform
Bromomethane
2-Butanone (N EK)
n-Butylbenzene
sec-Butylbenzene
Carbon disulfide
Carbon Tetrachloride
Chlorobenzene
Chloroethane
Chloroform
Chloromethane
2-Chlorotoluene
4-Chlorotoluene
Dibromochloromethane
1,2-Dibromo-3-chlozopropane
1,2-Dibromoethane (EDB)
Dibromomethane
Dichlorodifluoromethane
1,1-Dichloroethane
1,2-Dichloroethane
1,4-Dichlorobenzene
1,2-Dichlorobenzene
1,3-Dichlorobenzene
I,1-Dichloroethene
cis- 1,2-D iehloro ethene
trans-1,2-Dichloroethene
trans-1,4-Dicbloro-2-butene
1,2-Dichloropropane
1,3-Dichloropropane
1,1-Dichloropropene
1,2-Dichloropropene
< 5.00 ug/L
< 5.00 ug/L
< 0.500 ug/L
< 0.500 ug/L
< 0.500 ug/L
< 0.500 ug/L
< 0.500 ug/L
< 5.00 ug/L
< 0.500 ug/L
< 0.500 ugiL
< 0.500 ug/L
< 0.500 ug/L
< 0.500 ug/L
< 0.500 ug/L
< 0.500 ug/L
< 0.500 ug/L
< 0.500 ug/L
< 0.500 ug/L
< 0.500 ug/L
< 0.500 ug/L
< 0.500 ug/L
< 0.500 ug/L
< 0500 ug/L
< 0.500 ug/L
< 0.500 ug/L
< 0.500 ug/L
< 0.500 ug/L
< 0.500 ug/L
< 0.500 ug/L
< 0.500 ug/L
< 0.500 ug/L
< 0.500 ug/L
< 0.500 ug/L
< 0.500 ug/L
< 0.500 ug/L
< 0.500 ug/L
cis-1,3-Dichloropropene
trans-1,3-Dichloropropene
Ethanol
Ethyl benzene
Hexachlorobutadiene
2 Hexanone
Isopropylbenzene
p-Isopropyltoluene
Methylene chloride
Methly Isobutyl Ketone (MIBK)
Methyl iodide
Naphthalene
n-Propylbenzene
Styrene
1, 1, 1,2-Tetrachloroethane
1,1,2,2-Tetrachloroethane
Tetrachloroethene (PCE)
Toluene
1,1,1-Trichloroethane
1,1,2-Trichloroethane
Trichloroethene (TCE)
1,2,3-Trichlorobenzene
1,2,4-Trichlorobenzene
1,2,3-Trichloropropane
TrichlorofIuoromethane
1,2,4-Trimethylbenzene
1,3,5-Trimethylbenzene
Vinyl acetate
Vinyl chloride
m/p-Xylenes
o-Xylene
I hereby certify that I have reviewed and approve these data.
10/04/22
VWV
< 0.500 ug/L
< 0.500 ug/L
< 50.0 ug/L
< 0.500 ug/L
< 0.500 ug/L
< 1.00 ug/L
< 0.500 ug/L
< 0.500 ug/L
< 0.500 ug/L
< 0.500 ug/L
< 0.500 ug/L
< 0.500 ug/L
< 0.500 ug/L
< 0.500 ug/L
< 0.500 ug/L
< 0.500 ug/L
< 0.500 uglL,
< 0.500 ug/L
< 0.500 ug/L
< 0.500 ug/L
< 0.500 ug/L
< 0.500 ug/L
< 0.500 ug/L
< 0.500 ug/L
< 0.500 ug/L
< 0.500 ug/L
< 0.500 ug/L
< 1.00 ug/L
< 0.005 ug/L
< 1.00 ug/L
< 0.500 ug/L
642 Tamco Road * Reidsville, NC 27320
[phone] Ph * [phone] Fax

MERITECH, INC.
Environmental Laboratories
A Division of Water Technology and Controls, Inc.
Client: Louisiana Pacific Corp. Meritech ID#:
Project: LA GWM Analysis:
Client Sample ID: DSI-MW6 Analyst:
Sample Collection: 09/28/22 Dilution Factor:
Sample Volume: 5ml purge Report Date:
% solid N/A
Batch Blank = Below Reporting Limit
(Yes ) 1 No
Internal Standards method criteria acceptable es / No
Surrogate Recoveries Spike Conc SvikeRecove
Dibromofluoromethane 30 ug/L 125%
Toluene-d8 30 ug/L 99%
Bromofluorobenzene 30 ug/L 99%
Laboratory QC Check
Matrix Spike Recoveries Acceptable
Spike Compound Spike Cone
1,1-Dichloroethene 25 uglL
Benzene
25 ug/L
Trichlomethene
25 ug/L
Toluene
25 ug/L
Chlorobenzene
25 ug/L
# - Pails Limit Check
es 1 No
*
Limits
51-141%
67-151%
44-161%
09292224
10/04/22
VWV
1
10/10/22
Spike %Rec.
Duplicate % Rec.
RPD RPD Limits QC Limits
44%
44%
1 20 40-110
63%
70%
11 20 45-118
74%
80%
7 20 45-120
87%
94%
8 20 62-120
90%
99%
10 20 45-112
* - If "no" is selected, see third page for details.
I hereby certify that I have reviewed and approve these data.
Laboratory Representative
642 Tamco Road * Reidsville, NC 27320
[phone] Ph * (336) 342-1 v22 Fax

MERITECH, INC.
Environmental Laboratories
A Division of Water Technology and Controls, Inc.
Client: Louisiana Pacific Corp. Meritech HW: 09292225
Project: LA GWM Analysis: 10/04/22
Client Sample ID: DSI-MW9 Analyst: VWV
Sample Collection: 09/28/22 Dilution Factor: 1
SW-846-8260 VOLATILE ORGANICS - Water
Acetone
<5.00 ug/L
cis-1,3-Dichloropropene
<0.500 ug/L
Acrylonitrile
< 5.00 ug/L
trans-1,3-Dichloropropene
< 0.500 ug/L
Benzene
< 0.500 ug/L
Ethanol
< 50.0 ug/L
Bromodichloromethane
< 0.500 ug/L
Ethyl benzene
< 0.500 ug/L
Bromochloromethane
< 0.500 ug/L
Hexachlorobutadiene
< 0.500 ug/L
Bromoform
< 0.500 ug/L
2-Hexanone
< 1.00 ug/L
Bromomethane
< 0.500 ug/L
Isopropyibenzene
< 0.500 ug/L
2-Butanone (MEK)
< 5.00 ug/L
p-Isopropyltoluene
< 0.500 ug/L
n-Butylbenzene
< 0.500 ug/L
Methylene chloride
< 0.500 ug/L
sec-Butylbenzene
< 0.500 ug/L
Methyy lsobutyl Ketone (MIBK)
< 0.500 ug/L
Carbon disulfide
< 0.500 ug/L
Methyl iodide
< 0.500 ug/L
Carbon Tetrachloride
< 0.500 ug/L
Naphthalene
< 0.500 ug/L
Chlorobenzene
< 0.500 ug/L
n-Propylbenzene
< 0.500 ug/L
Chloroethane
< 0.500 ug/L
Styrene
< 0.500 ug/L,
Chloroform
< 0.500 ug/L
1,1,1,2-Tetrachloroethane
< 0.500 ug/L
Chloromethane
< 0.500 ug/L
1,1,2,2-Tetrachloroethane
< 0.500 ug/L.
2-Chlorotoluene
< 0.500 ug/L
Tetrachloroethene (PCE)
< 0.500 ug/L
4-Chlorotoluene
< 0.500 ug/L
Toluene
< 0.500 ug/L
Dibromochloromethane
< 0.500 ug/L
1, 1, 1 -Trichloroethane
< 0.500 ug/L
1,2-Dibromo-3-chloropropane
< 0.500 ug/L
1,1,2-Trichloroethane
< 0.500 ug/L
1,2-Dibromoethane (EDB)
< 0.500 ug/L
TrichIoroethene (TCE)
< 0.500 ug/L
Dibromomethane
< 0.500 ug/L
1,2,3-Trichlorobenzene
< 0.500 ug/L
Dichlorodifluoromethane
< 0.500 ugiL
1,2,4-Trichlorobenzene
< 0.500 ug/L.
1,1-Dichloroethane
< 0.500 ug/L
1,2,3-Trichloropropane
< 0.500 ug/L
1,2-Dichloroethane
< 0.500 ug/L,
Trichlorofluoromethane
< 0.500 ug/L
1,4-Dichlorobenzene
< 0.500 ug/L
1,2,4-Trimethylbenzene
< 0.500 ug/L
1,2-Dichlorobenzene
< 0.500 ug/L
1,3,5-Trimethylbenzene
< 0.500 ug/L
1,3-Dichlorobenzene
< 0.500 ug/L
Vinyl acetate
< 1.00 ug/L
1,1-Dichloroethene
< 0.500 ug/L
Vinyl chloride
< 0.005 ug/L,
cis-1,2-Dichloroethene
<0.500 ug/L
m/p-Xylenes
< 1.00 ug/L
trans-1,2-Dichloroethene
<0.500 ug/L
o-Xylene
<0.500 ug/L
trans-1,4-Dichloro-2-butene
< 0.500 ug/L
1,2-Dichloropropane
< 0.500 ug/L
1,3-Dichloropropane
< 0.500 ug/L
1,1-Dich1oropropene
<0.500 ug/L
1,2-Dichloropropene
< 0.500 ug/L
I hereby certify that I have reviewed and approve these data. Laboratory Representative
642 Tamco Road * Reidsville, NC 27320
[phone] Ph * [phone] Fax

MERITECH, INC.
Environmental Laboratories
A Division of Water Technology and Controls, Inc.
Client:
Louisiana Pacific Corp. Meritech ID#:
09292225
Project:
LA GWM
Analysis:
I0/04/22
Client Sample ID:
DSI-MW9
Analyst:
VWV
Sample Collection:
09/28/22
Dilation Factor:
1
Sample Volume:
5m1 purge
Report Date:
10/10/22
% solid
NIA
Batch Blank = Below Reporting Limit (Yes ) / No
Internal Standards method criteria acceptable es /No
SurroLvate Recoveries
Spike Conc
Spike Recovery
Limits
Dibromofluoromethane
30 ug/L
122%
51-141%
Toluene-d8
30 ug/L
94%
67-151%
Bromofluorobenzene
30 uglL
86%
44-161%
Laboratory QC Check
Matrix Spike Recoveries_ Acceptable
Spike Compound Spike Cone Spike %Rec
1, I-Dichloroethene
25 ug/L
44%
Benzene
25 ug/L
63%
Trichloroethene
25 ug/L
74%
Toluene
25 ug/L
870/6
Chlorobenzene
25 ug/L
90%
# - Fails Limit Check
* - If "no" is selected, see third page for details_
(Yes ) / No
#
Duplicate % Rec.
RPD RPD Limits OC Limits
44%
1
20
40-110
70%
11
20
45-119
80%
7
20
45-120
94%
8
20
62-120
99%
10
20
45-112
I hereby certify that I have reviewed and approve these data.
642 Tamco Road * Reidsville, NC 27320
[phone] Ph * [phone] Fax

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