WQ0000461_Residual Annual Report 2021_20220228

Non-Discharge Branch Upload/Submittal Form �.
NORTH CAROLINA
EnWrvnmenfol Quoity
Version 2-Revised June 23,2020
Initial Review
Reviewer EADS\ndthornburg
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* 2021
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* Chad Witherspoon
Email Address* Phone Number*
[e-mail] 3366963448
Project Information
Application/Document Type* New(Fee Required) Modification-Minor
Modification-Major(Fee Required) Renewal
Renewal with Major Modification(Fee GW-59, NDMR,NDMLR, NDAR-1,
Required) NDAR-2
Annual Report Residual Annual Report
Additional Information Change of Ownership
Other
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://edocs.deg.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.
Please except the 2021 Annual Land Application Report for Louisiana Pacific Corp.Permit#
WQ0000461
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.)
Annual Report WQ0000461.pdf 7.59MB
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
far��Ucxro
Submission Date 2/28/2022

LP
BUILDING SOLUTIONS
February 28, 2022
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 2021 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,
Chad Witherspoon
EHS Manager
Louisiana Pacific-Roaring River
[e-mail]
[phone]
cc: File
1068 ABTCO Road
ADDRESS North Wilkesboro,NC 28659
336.696.2751
TEL [phone]
FA% www.Ipcorp.com
WEB
BUILD WITII Us:"

LP
BUILDING 5OLBTIBMS
2021 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 2021 calendar year. LP has operated in compliance with the
permit requirements during 2021 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-MW1, DSI-MW5, and
DSI-MW9 during the March and September monitoring events. The results of the
groundwater monitoring are included in this report in the Groundwater Analysis section.
1068 ABTCO Road
ADDRESS North Wilkesboro,NC 28659
336.696.2751
TEL [phone]
FAX vmv.lpcorp.com
WEB
BUILD WIT$ US.'

LP
BUILDING SOLUTIONS
DMSDF
1068 ABTGO Road
ADDRESS North Wilkesf}oro,NC 28659
336.696.2751
TEL [phone]
FA% www.lpcorp.com
WEB
BUILD WITH US.'

CLASS A ANNUAL DISTRIBUTION AND MARKETING/ SURFACE DISPOSAL CERTIFICATION AND SUMMARY FORM
WQ PERMIT#: WQ0000461 FACILITY NAME: Louisiana Pacific Corp.
PHONE: [phone] COUNTY: Wilkes OPERATOR: James Boles
FACILITY TYPE(please check one): ❑ Surface Disposal(complete Part A(Source(s)and "Residual In" Volume only)and Part C)
❑ Distribution and Marketing(complete Parts A,B,and C)
Was the facility in operation during the past calendar year? Yes ❑ No 0 — If No skip parts A,B,C and certify form below
Part A*: Part B*:
Volume(dry tons) Recipient Information
Month Sources(s)(include NPDES#if Amendment)
applicable) Bulking Agent Residual In Product Out Name(s) Volume(dry tons) Intended use(s)
January
February -
March
April
May _
June
July
August
September _.
October _
November
December
Total from FORM DMSDF(sup) : :
Totals: I Annual(dry tons): 0 0 0 . . ........ 0 ...........•.•.•...•.
•
Amendment(s)used: Bulking Agent(s)used:
* If more space is required,attach additional information sheets(FORM DMSDF(supp)): Total Number of Form DMSDF(Supp)
Part C:
Facility was compliant during the past calendar year with all conditions of the land application permit El Yes
(including but not limited to items 1-3 below) issued by the Division of Water Resources: 0 No if No, Explain in Narritive
1. All monitoring was done in accordance with the permit and reported for the year as required and three(3)copies of certified laboratory results are attached.
2. All operation and maintenance requirements were compiled with or, in the case of a deviation,prior authorization was received from the Division of Water Resources.
3. No contravention of Ground Water Quality Standards occurred at a monitoring well.
"I certify,under penalty of law,that the above information is,to the best of my knowledge and belief,true,accurate and complete.I am aware that there are significant
penalties for submitting false information,including the possibility of fines and imprisonment for knowing violations."
Z za-Z-0____ ....24a'laa
Signature of Permittee Date Signature of Preparer** Date
(if different from Permittee)
**Preparer is defined in 40 CFR Part 503.9(r)and 15A NCAC 2T.1102 (26)
DENR FORM DMSDF (1212006)

LP
6UILOING SOLUTIONS
Ground Water Monitoring Analysis
Louisiana-Pacific Corporation T 615-586-58 O
414 Union Street•Suiie200) F 515.98E-5656 LPCorp.ocrn
Nashville,TN 37219

Certified Mail—9590 9402 2930 7094 8609 65 I..p
Return Receipt Requested
ImLOIRu SOLurwxc
April 21, 2021
Information Processing Unit
NCDEQ -DWR
1617 Mail Service Center
Raleigh,NC 27699-1617
Subject: Groundwater Sampling Results, September 2019
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 DS 1-MW 1,
DS1-MW5, and DS1-MW9. We continue to not spread on the fields adjacent to these wells.
If there are any questions regarding this report,please contact me at [phone].
Sincerely,
eiLd
Chad Witherspoon,
Plant EQ Manager
Louisiana Pacific- Roaring River
[e-mail]
[phone] (o)
336-452-3036 (c)
cc: File
ADDRESS 1068 ABTCO Road
North Wilkesboro,NC 28659
TEL [phone]
FAX [phone]
wEB www.lpeorp.com
BUILD WITH US

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GW-59A COMPLIANCE REPORT FORM Permit# W Q O7Co'1 j
(Submit one each monitoring period with GW-59 forms)
I Enter date monitoring results were due.( ~a9-al ) Will this monitoring report(GW-59 and GW-59A) YES NO
be submitted after the established due date?
2 Was any required information missing on the GW-59 report forms? YES NO
IF the answer to question 1 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 NO
identification plate,area overgrown,etc.)?If the answer is "Yes",contact the Regional Office for guidance.
4 Are any monitored constituents equal to or above the established standards? YES NO
If the answer to question 4 is "NO" skip to section 8.
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:
IDS l-MU) t 30 oA3/t Wc1rol2 115i— Wt !$.q MA-rafQ
DS i- o'I In7 5` , ©."7 iris f l M*rats°
5 For the constituents identified in question 4 above, have standards been exceeded previously for the YES 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 constituent(s)exceeding
standards;cbnceftration(s)reported and sample collection date for each occurrence(for the last two years)-.
o l q 15 I--rn 3 5 otkc&t Q- aaaO Ds,-rm+O l a5. f vt3/L N,'jrate.
d'D(°I 1j5{- 'noIS. 1vng/L 0iT 021-e olc7 75(- WS l01.3 ,•Y,gi� !J){r�{�
ae9a0 -psi wet I3[1 M3It )' 's
6 Are the monitoring wells listed in section 5 located at or beyond the review boundary? YES 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 may be improperly
located;contact the Regional Office. K
7 Is the permittee implementing previously approved actions required by the Division involving this YES 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
required to determine the impact the waste disposal system is having at the review and compliance
boundaries surrounding this facility. Failure to do so may subject the permittee to a Notice of Violation,
fines,and/or penalties.
/JO icmcil tAppl:cc,++o14 9ccvre3 tin rn�5 �ei� S1ytce 9098,
5rouvlaoctter MaA`k-6,L,5 3bAy,C`e Per `(eatr per p.cr�+i
UPS#, 1pYT o1Ac CUprrec+iie ltcfi 9Y\ ivy 'roCe55,
8 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(Cop n -Report GW-59A - nd complete to the best of my knowledge.
V-7/(/7 (
gnature of Per i ee or Authorized Agent) Date
CW-59A 12/8/2003

Ait Meritech, Inc.
Environmental Laboratory
illitio'
Laboratory Certification No.165
Contact: James Boles Report Date: 4/6/2021
Client: Louisiana-Pacific Corp. NPDES#: NC0005266
1068 ABTCO Rd Land App.Permit#: WQ0000461
North Wilkesboro,NC 28659 Date Sample Rcvd: 3/25/2021
Meritech Work Order# 03252184 Sample: DS1-MW1 Grab 3/23/21
Parameters esult Analysis Date Reporting Limit Method
Total Dissolved Solids 188 mg/L 3/30/21 10 mg/L SM 2540C
Chloride 1.9 mg/L 3/29/21 0.5 mg/L SM 4500 Cl B
Ammonia,Nitrogen <0.1 mg/L 3/29/21 0.1 mg/L EPA 350.1
Nitrate,Nitrogen 17.5 mg/L 3/26/21 0.10 mg/L EPA 353.2
TKN <0.20 mg/L 3/30/21 0.20 mg/L EPA 351.1
Nitrate/Nitrite,Nitrogen 30.4 mg/L 3/31/21 0.10 mg/L EPA 353.2
Nitrogen,total 30.4 mg/L 3/31/21 0.20 mg/L EPA 353.2
8260 Attached 3/29/21 - - EPA 8260
I hereby certify that I have reviewed and approve these data.
aboratory presentative
642 Tamco Road,Reidsville,North Carolina 27320
tel.[phone] fax.[phone]

,i-4-' MERITECH, INC.
,_ Environmental Laboratories
` .$ A Division of Water Technology and Controls, Inc.
14(1941
Client: Louisiana Pacific Corp. Meritech ID#: 03252184
Project: WQ0000461 Analysis: 03/29/21
Client Sample ID: DSI-MWI Analyst: VWV
Sample Collection: 03/23/21 Dilution Factor: 1
SW-846-8260D VOLATILE ORGANICS - Water
Acetone <50.0 ug/L cis-I,3-Dichloropropene <0.500 ug/L
Benzene <0.500 ug/L trans-1,3-Dichloropropene <0.500 ug/L
Bromobenzene <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 < I.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 Methly Isobutyl Ketone(MIBK) <0.500 ug/L
tert-Butylbenzene <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
I,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-Dichloroethene <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-Trirnethylbenzene <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
1,2-Dichloropropane <0.500 ug/L Additional Compounds
1,3-Dichloropropane <0.500 ug/L Methyl-tent-butyl ether(MTBE) <0.500 ug/L
2,2-Dichloropropane <0.500 ug/L Isopropyl ether(IPE) <0.500 ug/L
1,1-Dichloropropene <0.500 ug/L
1,2-Dichloropropene <0.500 ug/L
T�_
I hereby certify that I have reviewed and approve these data. Labora ary ReleMZI.tive
642 Tamco Road * Reidsville, NC 27320
[phone] Ph * [phone] Fax

MERITECH, INC.
Environmental Laboratories
A Division of Water Technology and Controls, Inc.
--e
Client Louisiana Pacific Corp. Meritech ID#: 03252184
Project: WQ0000461 Analysis: 03/29/21
Client Sample ID: DSI-MW I . Analyst: VWV
Sample Collection: 03/23/21 Dilution Factor: I
Sample Volume: 5m1 purge Report Date: 04/05/21
%solid N/A
Batch Blank =Below Reporting Limit (Yes)/No *
Internal Standards method criteria acceptable (Yes)/No *
Surrogate Recoveries Spike Cone Spike Recovery Limits
Dibromotluoromethane 30 ug/L 106% 31-120%
Toluene-d8 30 ug/L 96% 53-100%
Bromofluorobenzene 30 ug/L 90% 42-115%
Laboratory QC Check
Matrix Spike Recoveries Acceptable (Yes 1/No
Spike Compound Spike Cone Spike %Rec. Duplicate%Rec. RPD RPD Limits QC Limits
1,1-Dichloroethene 25 ug/L 84% 83% 1 20 40-133
Benzene 25 ug/L 96% 95% 1 20 40-168
Trichloroethene 25 ug/L 92% 95% 3 20 42-143
Toluene 25 ug/L 107% 106% 1 20 58-154
Chlorobenzene 25 ug/L 104% 104% 0 20 48-136
#-Fails Limit Check
*-If "no"is selected, see third page for details.
S.
I hereby certify that I have reviewed and approve these data. ■��
Laborat.ry Re -ve
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#: 03252184tb
Project: WQ0000461 Analysis: 03/29/21
Client Sample ID: Trip Blank Analyst: VWV
Sample Collection: 03/23/2I Dilution Factor: 1
SW-846-8260D VOLATILE ORGANICS - Water
Acetone <50.0 ug/L cis-1,3-Dichloropropene <0.500 ug/L
Benzene <0.500 ug/L trans-1,3-Dichloropropene <0.500 ug/L
Bromobenzene <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 Methly Isobutyl Ketone(MIBK) <0.500 ug/L
tert-Butylbenzene <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,I,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
1,I-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
I,l-Dichloroethene <0.500 ug/L Vinyl chloride <0.005 ug/L
c is-1,2-Di chl oroethene <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
1,2-Dichloropropane <0.500 ug/L Additional Compounds
1,3-Dichloropropane <0.500 ug/L Methyl-tert-butyl ether(MTBE) <0.500 ug/L
2,2-Dichloropropane <0.500 ug/L Isopropyl ether(IPE) <0.500 ug/L
1,1-Dichloropropene <0.500 ug/L
1,2-Dichloropropene <0.500 ug/L
+tir�
I hereby certify that I have reviewed and approve these data. Labo . ory Repel ative
642 Tamco Road * Reidsville, NC 27320
[phone] Ph * [phone] Fax

MERITECH, INC.
Environmental Laboratories
`#11 "--
A Division of Water Technology and Controls, Inc.
Ilior
Client: Louisiana Pacific Corp. Meritech ID#: 03252184tb
Project: WQ000046I Analysis: 03/29/21
Client Sample ID: Trip Blank Analyst: VWV
Sample Collection: 03/23/2I Dilution Factor: 1
Sample Volume: 5m1 purge Report Date: 04/05/2I
%solid N/A
Batch Blank =Below Reporting Limit (Yes)/No *
Internal Standards method criteria acceptable (Yes)/No *
Surrogate Recoveries Spike Conc Spike Recovery Limits
Dibromofluoromethane 30 ug/L 104% 31-120%
Toluene-d8 30 ug/L 101% 53-100%
Brornofluorobenzene 30 ug/L 93% 42-115%
Laboratory QC Check
Matrix Spike Recoveries Acceptable (Yes)/No *
Spike Compound Spike Conc Spike%Rec. Duplicate% Rec. RPD RPD Limits OC Limits
1,1-Dichloroethene 25 ug/L 84% 83% 1 20 40-133
Benzene 25 ug/L 96% 95% 1 20 40-168
Trichloroethene 25 ug/L 92% 95% 3 20 42-143
Toluene 25 ug/L 107% 106% 1 20 58-154
Chlorobenzene 25 ug/L 104% 104% 0 20 48-136
#-Fails Limit Check
*-If "no"is selected, see third page for details.
I hereby certify that I have reviewed and approve these data. Ij`�
s'Labor ory ReMIP live
642 Tamco Road * Reidsville, NC 27320
[phone] Ph * [phone] Fax

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fk Meritech, Inc.
Environmental Laboratory
Laboratory Certification No. 165
Contact: James Boles Report Date: 4/6/2021
Client: Louisiana-Pacific Corp. NPDES#: NC0005266
1068 ABTCO Rd Land App.Permit#: WQ0000461
North Wilkesboro,NC 28659 Date Sample Rcvd: 3/25/2021
Meritech Work Order# 03252185 Sample: DS1-MW3 Grab 3/22-23/21
Parameters Result Analysis Date Reporting Limit Method
Total Dissolved Solids 31 mg/L 3/30/21 10 mg/L SM 2540C
Chloride 1.9 mg/L 3/29/21 0.5 mg/L SM 4500 Cl B
Ammonia, Nitrogen <0.1 mg/L 3/29/21 0.1 mg/L EPA 350.1
Nitrate,Nitrogen 1.76 mg/L 3/26/21 0.10 mg/L EPA 353.2
TKN <0.20 mg/L 3/30/21 0.20 mg/L EPA 351.1
Nitrate/Nitrite,Nitrogen 1.91 mg/L 3/31/21 0.10 mg/L EPA 353.2
Nitrogen,total 1.91 mg/L 3/31/21 0.20 mg/L EPA 353.2
8260 Attached 3/29/21 - - EPA 8260
'hereby certify that have reviewed and approve these data.
L oratory Re esentative
642 Tamco Road,Reidsville,North Carolina 27320
tel.[phone] fax.[phone]

MERI TECH, INC.
„, L. Environmental Laboratories
A Division of Water Technology and Controls, Inc.
ICI
Client: Louisiana Pacific Corp. Meritech ID#: 03252185
Project: WQ0000461 Analysis: 03/29/21
Client Sample ID: DSI-MW3 Analyst: VWV
Sample Collection: 03/23/21 Dilution Factor: 1
SW-846-8260D VOLATILE ORGANICS - Water
Acetone <50.0 ug/L cis-1,3-Dichloropropene <0.500 ug/L
Benzene <0.500 ug/L trans-1,3-Dichloropropene <0.500 ug/L
Bromobenzene <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 Methly Isobutyl Ketone(MIBK) <0.500 uglL
tert-Butylbenzene <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 uglL
Dibromochloromethane <0.500 ug/L 1,1,1-Trichloroethane <0.500 ug/L
1,2-Dibromo-3-chloropropane <0.500 ug/L I,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 ugfL
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 1,2,4-Trimethylbenzene <0.500 ug/L
l,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
1,2-Dichloropropane <0.500 ug/L Additional Compounds
1,3-Dichloropropane <0.500 ug/L Methyl-tert-butyl ether(MTBE) <0.500 ug/L
2,2-Dichloropropane <0.500 ug/L Isopropyl ether(IPE) <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 entative
642 Tamco Road * Reidsville, NC 27320
[phone] Ph * [phone] Fax

MERITECH, INC.
,,,,_ , Environmental Laboratories
0 ` �' A Division of Water Technology and Controls, Inc.
..
Client: Louisiana Pacific Corp. Meritech ID#: 03252185
Project: WQ0000461 Analysis: 03/29/21
Client Sample ID: DS1-MW3 Analyst: VWV
Sample Collection: 03/23/21 Dilution Factor: 1
Sample Volume: 5m1 purge Report Date: 04/05/21
%solid N/A
Batch Blank =Below Reporting Limit (Yes 1/No *
Internal Standards method criteria acceptable (Yes)/No *
Surrogate Recoveries Spike Cone Spike Recovery Limits
Dibromofluoromethane 30 ug/L 108% 31-120%
Toluene-d8 30 ug/L 97% 53-100%
Bromofluorobenzene 30 ug/L 90% 42-115%
Laboratory QC Check
Matrix Spike Recoveries Acceptable (Yes)/No *
Spike Compound Spike Cone Spike %Rec. Duplicate% Rec. RPD RPD Limits QC Limits
1,1-Dichloroethene 25 ug/L 84% 83% 1 20 40-133
Benzene 25 ug/L 96% 95% 1 20 40-168
Trichloroethene 25 ug/L 92% 95% 3 20 42-143
Toluene 25 ug/L 107% 106% I 20 58-I54
Chlorobenzene 25 ug/L 104% 104% 0 20 48-136
#-Fails Limit Check
*-If "no"is selected, see third page for details.
I hereby certify that I have reviewed and approve these data.
Labora ry tative
642 Tamco Road * Reidsville, NC 27320
[phone] Ph* [phone] Fax

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Meritech, Inc.
Environmental Laboratory
Laboratory Certification No.165
Contact: James Boles Report Date: 4/6/2021
Client: Louisiana-Pacific Corp. NPDES#: NC0005266
1068 ABTCO Rd Land App.Permit#: WQ0000461
North Wilkesboro, NC 28659 Date Sample Rcvd: 3/25/2021
Meritech Work Order# 03252186 Sample: DS1-MW4 Grab 3/24/21
Parameters Result Analysis Date Reporting Limit Method
Total Dissolved Solids 135 mg/L 3/30/21 10 mg/L SM 2540C
Chloride <0.5 mg/L 3/29/21 0.5 mg/L SM 4500 Cl B
Ammonia,Nitrogen <0.1 mg/L 3/29/21 0.1 mg/L EPA 350.1
Nitrate,Nitrogen 7.85 mg/L 3/25/21 0.10 mg/L EPA 353.2
TIN <0.20 mg/L 3/30/21 0.20 mg/L EPA 351.1
Nitrate/Nitrite,Nitrogen 8.04 mg/L 3/31/21 0.10 mg/L EPA 353.2
Nitrogen,total 8.04 mg/L 3/31/21 0.20 mg/L EPA 353.2
8260 Attached 3/29/21 - - EPA 8260
I hereby certify that I have reviewed and approve these data.
L orato ep sentative
642 Tamco Road,Reidsville,North Carolina 27320
tel.[phone] fax.[phone]

MERITECH, INC.
4,-- Environmental Laboratories
1 '� A Division of Water Technology and Controls, Inc.
Client: Louisiana Pacific Corp. Meritech ID#: 03252186
Project: WQ0000461 Analysis: 03/29/21
Client Sample ID: DSI-MW4 Analyst: VWV
Sample Collection: 03/24/21 Dilution Factor: 1
SW-846-8260D VOLATILE ORGANICS - Water
Acetone <50.0 ug/L cis-1,3-➢ichloropropene <0.500 ug/L
Benzene <0.500 ug/L trans-1,3-Dichloropropene <0.500 ug/L
Bromobenzene <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 Methly Isobutyl Ketone(MIRK) <0.500 ug/L
tert-Butylbenzene <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 ugfL
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
1,2-Dichloropropane <0.500 ug/L Additional Compounds
1,3-Dichloropropane <0.500 ug/L Methyl-tert-butyl ether(MTBE) <0.500 ugfL
2,2-Dichloropropane <0.500 ug/L Isopropyl ether(IPE) <0.500 ug/L
1,1-Dichloropropene <0.500 ug/L
1,2-Dichloropropene <0.500 ug/L
ilk&
I hereby certify that I have reviewed and approve these data. Labo atory RM112 ative
642 Tamco Road * Reidsville, NC 27320
[phone] Ph * [phone] Fax

i MERITECH, INC.
Environmental Laboratories
A Division of Water Technology and Controls, Inc.
Client: Louisiana Pacific Corp. Meritech ID#: 03252186
Project: WQ0000461 Analysis: 03/29/21
Client Sample ID: DSI-MW4 Analyst: VWV
Sample Collection: 03/24/21 Dilution Factor: 1
Sample Volume: 5m1 purge Report Date: 04/05/21
%solid N/A
Batch Blank =Below Reporting Limit (Yes)/No *
Internal Standards method criteria acceptable (Yes)I No *
Surrogate Recoveries Spike Cone Spike Recovery Limits
Dibromofluoromethane 30 ug/L 113% 31-120%
Toluene-d8 30 ug/L 98% 53-100%
Bromofluorobenzene 30 ug/L 87% 42-115%
Laboratory QC Check
Matrix Spike Recoveries Acceptable (Yes)I No *
Spike Compound Spike Cone Spike%Rec. Duplicate% Rec. RPD RPD Limits QC Limits
1,1-Dichloroethene 25 ug/L 84% 83% 1 20 40-133
Benzene 25 ug/L 96% 95% 1 20 40-168
Trichloroethene 25 ug/L 92% 95% 3 20 42-143
Toluene 25 ug/L 107% 106% 1 20 58-154
Chlorobenzene 25 ug/L 104% 104% 0 20 48-136
#-Fails Limit Check
*-If "no"is selected, see third page for details.
I hereby certify that I have reviewed and approve these data.
Labo ory Rep tive
642 Tamco Road * Reidsville, NC 27320
[phone] Ph * [phone] Fax

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,,t. • Meritech, Inc.
Environmental Laboratory
Laboratory Certification No.165
- -e
Contact: James Boles Report Date: 4/6/2021
Client: Louisiana-Pacific Corp. NPDES#: NC0005266
1068 ABTCO Rd Land App.Permit#: WQ0000461
North Wilkesboro, NC 28659 Date Sample Rcvd: 3/25/2021
Meritech Work Order# 03252187 Sample: DS1-MW5 Grab 3/24/21
Parameters Result Analysis Date Reporting Limit Method
Total Dissolved Solids 176 mg/L 3/30/21 10 mg/L SM 2540C
Chloride 1.5 mg/L 3/29/21 0.5 mg/L SM 4500 Cl B
Ammonia,Nitrogen <0.1 mg/L 3/29/21 0.1 mg/L EPA 350.1
Nitrate,Nitrogen 13.7 mg/L 3/25/21 0.10 mg/L EPA 353.2
TKN <0.20 mg/L 3/30/21 0.20 mg/L EPA 351.1
Nitrate/Nitrite,Nitrogen 20.7 mg/L 3/31/21 0.10 mg/L EPA 353.2
Nitrogen,total 20.7 mg/L 3/31/21 0.20 mg/L EPA 353.2
8260 Attached 3/29/21 - - EPA 8260
I hereby certify that I have reviewed and approve these data. 7)4 '
Laboratory Representative
642 Tamco Road,Reidsville,North Carolina 27320
tel.[phone] fax.[phone]

MERITECH, INC.
Environmental Laboratories
A Division of Water Technology and Controls, Inc.
f.
Client: Louisiana Pacific Corp. Meritech ID#: 03252187
Project: WQ0000461 Analysis: 03/29/21
Client Sample ID: DSI-MW5 Analyst: VWV
Sample Collection: 03/24/21 Dilution Factor: 1
SW-846-8260D VOLATILE ORGANICS - Water
Acetone <50.0 ug/L cis-1,3-Dichloropropene <0.500 ug/L
Benzene <0.500 ug/L trans-1,3-Dichloropropene <0.500 ug/L
Bromobenzene <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 <0.5.00 ug/L Methly Isobutyl Ketone(MIBK) <0.500 ug/L
tert-Butylbenzene <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 ugfL 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
l,2-Dibromo-3-chloropropane <0.500 ug/L 1,1,2-Trichloroethane <0.500 ugfL
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-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
1,3-Di chi orobenzene <0.500 ug/L Vinyl acetate < 1.00 ug/L
1,1-Dichloroethene <0.500 ug/L Vinyl chloride <0.005 ugfL
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
1,2-Dichloropropane <0.500 ug/L Additional Compounds
1,3-Dichloropropane <0.500 ug/L Methyl-tert-butyl ether(MTBE) <0.500 ug/L
2,2-Dichloropropane <0.500 ug/L Isopropyl ether(IPE) <0.500 ug/L
1,1-Dichloropropene <0.500 ug/L
I,2-Dichloropropene <0.500 ug/L
I hereby certify that I have reviewed and approve these data. Laboratory Repre tative
642 Tamco Road * Reidsville, NC 27320
[phone] Ph * [phone] Fax

MERITECH, INC.
Environmental Laboratories
A Division of Water Technology and Controls, Inc.
iff,
Client: Louisiana Pacific Corp. Meritech ID#: 03252187
Project: WQ0000461 Analysis: 03/29/21
Client Sample ID: DSI-MW5 Analyst: VWV
Sample Collection: 03/24/21 Dilution Factor: 1
Sample Volume: 5m1 purge Report Date: 04/05/21
%solid N/A
Batch Blank =Below Reporting Limit (Yes)/No *
Internal Standards method criteria acceptable (Yes)/No *
Surrogate Recoveries Spike Cone Spike Recovery Limits
Dibromofluoromethane 30 ugfL 119% 31-120%
Toluene-d8 30 ug/L 101% 53-100%
Bromofluorobenzene 30 ugfL 86% 42-115%
Laboratory QC Check
Matrix Spike Recoveries Acceptable (Yes)/No *
Spike Compound Spike Cone Spike%Rec. Duplicate%Rec. RPD RPD Limits QC Limits
1,1-Dichloroethene 25 ug/L 84% 83% 1 20 40-133
Benzene 25 ug/L 96% 95% 1 20 40-168
Trichloroethene 25 ugL, 92% 95% 3 20 42-143
Toluene 25 ug/L 107% 106% 1 20 58-154
Chlorobenzene 25 ug/L 104% 104% 0 20 48-136
#-Fails Limit Check
*-if "no"is selected, see third page for details.
I hereby certify that I have reviewed and approve these data.
Labo tory Rep entative
642 Tamco Road * Reidsville, NC 27320
[phone] Ph * [phone] Fax

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Meritech, Inc.
Environmental Laboratory
Laboratory Certification No. 165
7 „Aril
Contact: James Boles Report Date: 4/6/2021
Client: Louisiana-Pacific Corp. NPDES#: NC0005266
1068 ABTCO Rd Land App. Permit#: WQ0000461
North Wilkesboro,NC 28659 Date Sample Rcvd: 3/25/2021
Meritech Work Order# 03252188 Sample: DS1-MW6 Grab 3/24/21
Parameters Result Analysis Date Reporting Limit Method
Total Dissolved Solids 142 mg/L 3/30/21 10 mg/L SM 2540C
Chloride 1.0 mg/L 3/29/21 0.5 mg/L SM 4500 Cl B
Ammonia,Nitrogen 0.1 mg/L 3/29/21 0.1 mg/L EPA 350.1
Nitrate,Nitrogen <0.10 mg/L 3/26/21 0.10 mg/L EPA 353.2
TKN 0.32 mg/L 3/30/21 0.20 rrig/L EPA 351.1
Nitrate/Nitrite,Nitrogen <0.10 mg/L 3/31/21 0.10 mg/L EPA 353.2
Nitrogen,total 0.32 mg/L 3/31/21 0.20 mg/L EPA 353.2
8260 Attached 3/29/21 - - EPA 8260
6-)j __,_._,,, dr
I hereby certify that I have reviewed and approve these data.
La ora ry Representative
642 Tamco Road,Reidsville,North Carolina 27320
tel.[phone] fax.[phone]

MERI TECH, INC.
Environmental Laboratories
; A Division of Water Technology and Controls, Inc.
Client: Louisiana Pacific Corp. Meritech ID#: 03252188
Project: WQ0000461 Analysis: 03/29/21
Client Sample ID: DSI-MW6 Analyst: VWV
Sample Collection: 03/24/21 Dilution Factor: 1
SW-846-8260D VOLATILE ORGANICS - Water
Acetone <50.0 ug/L cis-1,3-Dichloropropene <0.500 ug/L
Benzene <0.500 ug/L trans-1,3-Dichloropropene <0.500 ug/L
Bromobenzene <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 Methly Isobutyl Ketone(MIBK) <0.500 ug/L
tert-Butylbenzene <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 I,1,2,2-Tetrachloroethane <0.500 ug/L
2-Chlorotoluene <0.500 ug/L Tetrachloroethene(PCE) <0.500 ug/L
4-Chlorotoluene <0.500 ugfL Toluene <0.500 ug/L
Dibromochloromethane <0.500 ug/L 1,1,1-Trichloroethane <0.500 ug/L
I,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-Diehloroethane <0.500 ug/L Trichlorofluoromethane <0.500 ug/L
1,4-Dichlorobenzene <0.500 ugfL 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 mlp-Xylenes < 1.00 ug/L
trans-I,2-Dichloroethene <0.500 ug/L o-Xylene <0.500 ug/L
1,2-Dichloropropane <0.500 ug/L Additional Compounds
I,3-Dichloropropane <0.500 ug/L Methyl-tert-butyl ether(MTBE) <0.500 ug/L
2,2-Dichloropropane <0.500 ug/L Isopropyl ether(IPE) <0.500 ug/L
l,1-Dichloropropene <0.500 ug/L
I,2-Dichloropropene <0.500 ug/L
I hereby certify that I have reviewed and approve these data. Labor tory tative
642 Talmo Road * Reidsville, NC 27320
[phone] Pig * [phone] Fax

MERITECH, INC.
Environmental Laboratories
- " A Division of Water Technology and Controls, Inc.
Client: Louisiana Pacific Corp. Meritech ID#: 03252188
Project: WQ000046I Analysis: 03/29/21
Client Sample ID: DSI-MW6 Analyst: VWV
Sample Collection: 03/24/21 Dilution Factor: 1
Sample Volume: 5m1 purge Report Date: 04/05/21
solid N/A
Batch BIank =Below Reporting Limit (Yes)/No *
Internal Standards method criteria acceptable (Yes)/No *
Surrogate Recoveries Spike Cone Spike Recovery Limits
Dibromofluoromethane 30 ug/L 115% 31-120%
Toluene-d8 30 ug/L 102% 53-100%
Bromo#luorobenzene 30 ug/L 87% 42-115%
Laboratory QC Check
Matrix Spike Recoveries Acceptable (Yes)/No *
Spike Compound Spike Cone Spike%Rec. Duplicate%Rec. RPD RPD Limits QC Limits
1,1-Dichloroethene 25 ug/L 84% 83% 1 20 40-133
Benzene 25 ug/L 96% 95% 1 20 40-168
Trichloroethene 25 ug/L 92% 95% 3 20 42-143
Toluene 25 ug/L 107% 106% 1 20 58-154
Chlorobenzene 25 ug/L 104% I04% 0 20 48-136
#-Fails Limit Check
*-If "no"is selected, see third page for details.
I hereby certify that I have reviewed and approve these data.
Labor ry Rep tive
642 Tamco Road* Reidsville, NC 27320
[phone] Ph * [phone] Fax

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Meritech, Inc.
Environmental Laboratory
Laboratory Certification No.165
Contact: James Boles Report Date: 4/6/2021
Client: Louisiana-Pacific Corp. NPDES#: NC0005266
1068 ABTCO Rd Land App.Permit#: WQ0000461
North Wilkesboro,NC 28659 Date Sample Rcvd: 3/25/2021
Meritech Work Order# 03252189 Sample: DS1-MW9 Grab 3/24/21
Parameters Resat Analysis Date Reporting Limit Method
Total Dissolved Solids 165 mg/L 3/30/21 10 mg/L SM 2540C
Chloride <0.5 mg/L 3/29/21 0.5 mg/L SM 4500 Cl B
Ammonia, Nitrogen <0.1 mg/L 3/29/21 0.1 mg/L EPA 350.1
Nitrate,Nitrogen 15.0 mg/L 3/26/21 0.10 mg/L EPA 353.2
Tl{N <0.20 mg/L 3/30/21 0.20 mg/L EPA 351.1
Nitrate/Nitrite,Nitrogen 18.9 mg/L 3/31/21 0.10 mg/L EPA 353.2
Nitrogen,total 18.9 mg/L 3/31/21 0.20 mg/L EPA 353.2
8260 Attached 3/29/21 - - EPA 8260
•
I hereby certify that I have reviewed and approve these data.
Labora ary Representative
642 Tamco Road,Reidsville,North Carolina 27320
tel.[phone] fax.(336}342-1522

,,
MERITECH, INC.
Environmental Laboratories
A Division of Water Technology and Controls, Inc.
li
t
Client: Louisiana Pacific Corp. Meritech ID#: 03252189
Project: WQ0000461 Analysis: 03/29/21
Client Sample ID: DSI-MW9 Analyst: VWV
Sample Collection: 03/24/21 Dilution Factor: 1
SW-846-8260D VOLATILE ORGANICS - Water
Acetone <50.0 ug/L cis-1,3-Dichloropropene <0.500 ug/L
<0.500 ug/L trans-I 3 Dichloro ro
Benzene $ ene <0.500 ug/L- P P
Bromobenzene <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 Methly Isobutyl Ketone(MIBK) <0.500 ug/L
tert-Butylbenzene <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 uglL
Chloromethane <0.500 ug/L 1,1,2,2-Tetrachloroethane <0.500 ug/L
2-Chlorotoluene <0.500 ug/L Tetrachloroethane(PCE) <0.500 ug/L
4-Chlorotoluene <0.500 ug/L Toluene <0.500 ug/L
Dibromochloromethane <0.500 uglL 1,1,1-Trichloroethane <0.500 ug/L
1,2-Dibromo-3-chlaropropane <0.500 ug/L 1,1,2-Trichloroethane <0.500 ug/L
<0.500 u Trichloroethene(TCE) <0.500 ug/L
1,2-Dibromoethane(EDB) 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 1,2,4-Trimethylbenzene <0.500 ug/L
1,2-Dichlorobenzene <0.500 ug/L 1,3,5-Trimethylbenzene <0.500 ug/L
Vinyl<0.500 ug/LVin l 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
1,2-Dichloropropane <0.500 ug/L Additional Compounds
1,3-Dichloropropane <0.500 ug/L Methyl-tert-butyl ether(MTBE) <0.500 ug/L
2,2-Dichloropropane <0.500 ug/L Isopropyl ether(IPE) <0.500 ug/L
1,1-Dichloropropene <0.500 ug/L
1,2-Dichloropropene <0.500 ug/L01
.a1illii�1.
I hereby certify that I have reviewed and approve these data. Labors ory R ve
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#: 03252189
Project: WQ0000461 - Analysis: 03/29/21
Client Sample ID: DSI-MW9 Analyst: VWV
Sample Collection: 03/24/21 Dilution Factor: 1
Sample Volume: 5in1 purge Report Date: 04/05/21
solid N/A
Batch Blank =Below Reporting Limit (Yes)I No *
Internal Standards method criteria acceptable (Yes)/No *
Surrogate Recoveries Spike Cone Spike Recovery Limits
Dibromofluoromethane 30 ug/L 116% 31-120%
Toluene-d8 30 ug/L I03% 53-100%
Bromofluorobenzene 30 ug/L 96% 42-115%
Laboratory QC Check
Matrix Spike Recoveries Acceptable fYes)/No *
Spike Compound Spike Cone Spike%Rec. Duplicate%Rec. RPD RPD Limits QC Limits
1,1-Dichloroethene 25 ug/L 84% 83% 1 20 40-133
Benzene 25 ug/L 96% 95% 1 20 40-168
Trichloroethene 25 ug/L 92% 95% 3 20 42-143
Toluene 25 ug/L 107% 106% 1 20 58-154
Chlorobenzene 25 ug/L 104% 104% 0 20 48-136
4-Fails Limit Check
*-If "no" is selected, see third page for details.
I hereby certify that I have reviewed and approve these data.
Labora ry Rep tative
642 Tamco Road * Reidsville, NC 27320
[phone] Ph * [phone] Fax

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Certified Mail—9590 9402 1249 5246 3185 39 liP
Return Receipt Requested .11„o1,.,,,0,1o11,
Octobre 22,2021
Information Processing Unit
NCDEQ-DWR
1617 Mail Service Center
Raleigh,NC 27699-1617
Subject: Groundwater Sampling Results, September 2019
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 September as required by Condition IV.7 of Permit
No.WQ0000461.
Note that we detected nitrates equal to or above the established standard in well DS 1 MW 1,
DS1-MW5,and DS1-MW9. We continue to not spread on the fields adjacent to these wells.
If there are any questions regarding this report,please contact me at(336)696-3448.
Sincerely,
CA,0410- 071---Th
Chad Witherspoon
EHS Manager
Louisiana Pacific- Roaring River
[e-mail]
336-696-3448
cc: File
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GW-59A COMPLIANCE REPORT FORM Permit# tAbg hODOgGI
(Submit one each monitoring period with GW-59 forms.)
Enter date monitoring results were due.(il�Il2I ) Will this monitoring report(GW-59 and OW-59A) YES 07
be submitted after the established due date?
2 Was any required information missing ea the GW-59 report forms? YES O
iF the answer to question 1 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 to
identification plate,area overgrown,etc.)?If the answer is "Yes",contact the Regional ice for guidance.
4 Are any monitored constituents equal to or above the established standards? YES NO
If the answer to question 4 is"NO",skip to section.8.
If the answer to question 4 is"YES"list the affected wells individually with consfifuent(s)and concentration(s)
exceeding standards in the space provided below: _q � ��{
�S4-M t 3�.a i )9/4 r�; r � tDs4-
AvA itke
USI-MWS 3a.b 01 /I AVT ai-e
5 For the constituents identified in question 4 above,have standards been exceeded previously for the YES 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 constituent(s)exceeding
standards,concentration(s)reported,and sample collection date for each occurrence(for the last two years).
aoaa U54- IIMAYt as,e-yli tYvkrati sfzq[a 4 vst-mai 3t et ov+at t At-kva-te
0219 aO b51- MW-s 41.3 slit ecirette 31a4f al bst—mw s ao,l *glt �4r e
aaa't0 `�J5!- 04-9 i3•� q�t ,Ui�ra�i= 3Iaglal 1st - iV 4J- (8•1 , t9Jt
6 Are the monitoring wells listed in section 5 located at or beyond the review boundary? YES 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 may be Improperly
located;contact the Regional Office.
7 Is the permittee implementing previously approved actions required by the Division involving this YES 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 x
required to determine the impact the waste disposal systeem is haying at the review and compliance
boundaries surrounding this facility. Failure to do so may subject the permittee to a Notice of Violation.
fines,and/orpenalties. �A ,
t41t1 lane) o�fP41cu�'i4� �a4 Btc.urtaS t►n
'tine Swrn0lt g aea r 51 n e e.
gi- 211
annual Crpun 664A1%49r'N"45 P�zr P XM °ccvr$.
({,es,( k0 .`d�
rn.
/'ercrckc'+e uc4f on was recer4..i •v i 4 i5r�
S The person completing this portion(G W-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 Inforrriation was evaluated and the Information submitted In this
report(Compliance Report GW.59A)is true and complete to the best of my knowledge.
/D/irY/
Signature or Permittee for Authorized Agent} Date
GW-59A 12/9/2.003

. . Meritech, Inc.
Environmental Laboratory
tellLaboratory Certification.No.165
Page 1
Contact James Boles Report Date: 10/15/2021
Client: Louisiana-Pacific Corp. NPDES#: NC0005266
1068 ABTCO Rd Project: LA Wells
North Wilkesboro,NC 28659 Date Sample Rcvd: 9/28/2021
Meritech Work Order# 092821125 Sample: DSI-MW1 Grab 9/28/21
Parameters Mutt Analysk Date Reporting Limit Method
Total Dissolved Solids 150 mg/L 9/30/21 10 mg/L SM 2540C
Chloride 3.0 mg/L 10/4/21 0.5 mg/L SM 4500 CI B
Ammonia,Nitrogen <0.1 mg/L 9/30/21 0.1 mg/L EPA 350.1
Nitrate,Nitrogen 25.8 mg/L 9/29/21 0.10 mg/L EPA 353.2
TKN <0.20 mg/L 10/5/21 0.20 mg/L EPA 351.1
Nitrate/Nitrite,Nitrogen 38.2 mg/L 9/29/21 0.10 mg/L EPA 353.2
Nitrogen,total 38.2 mg/L 10/5/21 0.20 mg/L EPA 353.2
8260 Attached 10/4/21 - - EPA 8260
Meritech Work Order# 092821126 Sample: DSI-MW3 Grab 9/28/21
parameters Result Analysis Date Reporting Limit Method
Total Dissolved Solids 47 mg/L 9/30/21 10 mg/L SM 2540C
Chloride 1.0 nig/L 10/4/21 0.5 mg/L SM 4500 CI B
Ammonia,Nitrogen <0.1 mg/L 9/30/21 0.1 mg/L EPA 350.1
Nitrate,Nitrogen 1.01 mg/L 9/29/21 0.10 mg/L EPA 353.2
TKN 0.29 mg/L 10/5/21 0.20 mg/L EPA 351.1
Nitrate/Nitrite,Nitrogen 1.03 mg/L 9/29/21 0.10 mg/L EPA 353.2
Nitrogen,total 1.32 mg/L 10/5/21 0.20 mg/L EPA 353.2
8260 Attached 10/4/21 - - EPA 8260
642 Tamco Road,Reidsville,North Carolina 27320
tel.[phone] fax.[phone]

Meritech, Inc.
Environmental Laboratory
Laboratory Certification No.165
Page 2
Contact:James Boles Report Date: 10/15/2021
Client Louisiana-Pacific Corp. NPDES#: NC0005266
1068 ABTCO Rd Project LA Wells
North Wilkesboro,NC 28659 Date Sample Rcvd: 9/28/2021
Meritech Work Order# 092821127 Sample: DSI-MW4 Grab 9/28/21
Parameters Result Analysis Date Reporting Limit Method
Total Dissolved Solids 166 mg/L 9/30/21 10 mg/L SM 2540C
Chloride 10 mg/L 10/4/21 0.5 mg/L SM 4500 Cl B
Ammonia,Nitrogen <0.1 mg/L 9/30/21 0.1 mg/I. EPA 350.1
Nitrate,Nitrogen 7.08 mg/L 9/29/21 0.10 mg/L EPA 353.2
TKN 0.33 mg/L 10/5/21 0,20 mg/L EPA 351.1
Nitrate/Nitrite,Nitrogen 7.02 mg/L 9/29/21 0.10 mg/L EPA 353.2
Nitrogen,total 7.35 mg/L 10/5/21. 0.20 mg/L EPA 353.2
8260 Attached 10/4/21 - - EPA 8260
Meritech Work Order# 092821128 Sample: DSI-MW5 Grab 9/28/21
Parameters ResultAnalysis Date Reporting Limit Method
Total Dissolved Solids 223 mg/L 9/30/21 10 mg/L SM 2540C
Chloride 3.0 mg/L 10/4/21 0.5 mg/L SM 4500 Cl B
Ammonia,Nitrogen <0,1 mg/L 9/30/21 0.1 mg/L EPA 350,1
Nitrate,Nitrogen 18.0 mg/L 9/29/21 0.10 mg/L EPA 353.2
TKN <0.20 mg/L 10/5/21 0.20 mg/L EPA 351.1
Nitrate/Nitrite,Nitrogen 32.6 mg/L 9/29/21 0.10 mg/L EPA 3532
Nitrogen,total 32.6 mg/L 10/5/21 0.20 mg/L EPA 353.2
8260 Attached 10/4/21 - - EPA 8260
642 Tainco Road,Reidsville,North Carolina 27320
tel.[phone] fax.[phone]

Meritech, Inc.
,.Akt
-' - Environmental Laboratory
Laboratory Certification No.165
Page 3
Contact: James Boles Report Date: 10/15/2021
Client: Louisiana-Pacific Corp. NPDES#: NC0005266
1068ABTCO Rd Project: LA Wens
North Wilkesboro,NC 28659 Date Sample Rcvd: 9/28/2021
Meritech Work Order# 092821129 Sample: OSI-MW6 Grab 9/28/21
Parameters Result Analysis Date Reporting Limit Method
Total Dissolved Solids 105.mg/L 9/30/21 10 mg/L SM 2540C
Chloride 1.5 mg/L 10/4/21 0.5 mg/L SM 4500 Cl B
Ammonia,Nitrogen 0A mg/L 9/30/21 0.1 mg/L EPA 350.1
Nitrate,Nitrogen <0.10 mg/L 9/29/21 0.10 mg/L EPA 353.2
Tl{N 0.59 mg/L 10/5/21 0.20 mg/L EPA 351.1
Nitrate/Nitrite,Nitrogen <0.10 mg/L 9/29/21 0.10 mg/L EPA 353.2
Nitrogen,total 0.59 mg/L 10/5/21 0.20 mg/L EPA 353.2
8260 Attached 10/4/21 - - EPA 8260
Meritech Work Order# 092821130 Sample: DSI-MW9 Grab 9/28/21
parameters Result Analysispate Reporting Limit fv1etho4
Total Dissolved Solids 212 mg/L 9/30/21 10 mg/L SM 2540C
Chloride 1.5 mg/L 10/4/21 0.5 mg/L SM 4500 Cl B
Ammonia,Nitrogen <0.1 mg/L 9/30/21 0.1 mg/L EPA 350.1
Nitrate,Nitrogen 21.8 mg/L 9/29/21 0.10 mg/L EPA 353.2
TEN <0.20 mg/L 10/5/21 0.20 mg/L EPA 351.1
Nitrate/Nitrite,Nitrogen 21,6 mg/L 9/29/21 0.10 mg/L EPA 353.2
Nitrogen,total 21.6 mg/L 10/5/21 0.20 mg/L EPA 353.2
8260 Attached 10/4/21 - - EPA 8260
I hereby certify that I have reviewed and approve these data. a.th ripL
Laaooratory Representative
642 Tamco Road,Reidsville,North Carolina 27320
tel.[phone] fax.[phone]

..
MERITECH, INC,
Environmental Laboratories
w , A Division of Water Technology and Controls, Inc.
Client: Louisiana Pacific Corp. Meritech ID#: 092821125
Project LA Wells Analysis: 10/04/21
Client Sample ID: DSI MWl Analyst VWV
Sample Collection: 09/28/21 Dilution Factor: 1
SW-846-8260D VOLATILE ORGANICS-Water
Acetone <50.0 ugfL cis-1,3-DichIoropropene <0.500 ug/L
Benzene <0.500 ug/L trans-1,3-Dichloropropene <0.500 ug/L
Bromobenzene <0.500 ug/L Ethanol <50.0 ug/L
BromodicbIoramethane <0.500 ugfL Ethyl benzene <0.500 ug/L
Bromochloromethane <0.500 ug/L Hexachlorobutadiene <0.500 ugfL
Brornoform <0.500 ugtL 2-Hexanone <1.00 ug/L
Bromomethane <0.500 ug/L Isopropylbenzene <0.500 ug/L
2-Butanone(MEK) <5.00 ugfL p-lsopropyltaluene <0.500 ug/L
n Butylbenzene <0.500 ug/L Methylene chloride <0.500 ug/L.
sec- utylbenzene <0.500 ugfL Methly Isobutyl Ketone(MIBK) <0.500 ug/L
ter-Butylbenzene <0.500 ugtL Methyl iodide <0500 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 I,1,1,2-Tetrachloroeihane <0.500 ug/L
Chloromethane <0.500 ug/L 1,1,2,2-Tetrachloroethane <0.500 ug/L
2-Chlorotoluene <0.500 ugfL Tetrachloroethene(PCE) <0500 ug/L
4-Chlorotoluene <0.500 ug/L Toluene <0500 ug/L
Dibromochloromethane <0.500 ug/L 1,1,1-Trjcloraethane <0500 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 ugfL Trichloroethene(ICE) <0.500 ug/L
Dibromomethane <0.500 ugfL 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 uglL. 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 ugfL
1,2-Dichtorobenzene <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-Dichloroetbene <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
1,2-Dichloropropane <0.500 ug/L Additional Compounds
1,3-Diebloropropane <0,500 ug/L Methyl tert-butyl ether(MTBE) <0.500 ug/L
2,2-Dichloropropane <0.500 ug/L Isopropyl ether(IPE) <0.500 ug/L
1,I Ilichloropropene <0.500 ug/L
I,2-Diehloropropene <0.500 ug/Llek
l
011",411 D
I hereby certify that!have reviewed and approve these data. Laboratory F resentative
642 Tamco Road*Reidsville, NC 27320
(336)342-745 Ph* [phone] Fax

‘.8MERITECH, INC.
Environmental Laboratories
itto A Division of Water Technology and Controls,Inc.
Client Louisiana Pacific Corp. Meritech ID#: 092821125
Project: LA Wells Analysis: 10/04/21
Client Sample ID: DSI MW1 Analyst
VWV
Sample Collection: 09/28/21 Dilution Factor: 1
Sample Volume: 5mi purge Report Date: 10/12/21
%solid WA
Batch Blank =Below Reporting Limit (Yes)I No *
Internal Standards method criteria acceptable (ties)/No
Surrogate Recoveries Spike Cone Spike Recovery imits
Dibromofluoromethane 30 ug/L 97% 31-120%
lcluene-d8 3041. 88% 53-100%
Bromoflnorobenzene 30 ug/L, 82% 42-115%
Laboratory QC Check
Matrix Spike Recoveries Acceptable (Yes)/No *
Spike Compound Spike Cone Spike%Rec. Duplicate%Rec. RPD RPD Limits OC Limits
1,1 Dicl3loroethene 25 ug/L 58% 57% 1 20 40-133
Benzene 25 ug/L 131% 131% 0 20 40-168
Trichloroethene 25 ug/L 87% 86% 2 20 42-143
Toluene 25 ug/L 103% 105% 2 20 58-154
Chlorobeuzene 25 ug/L 116% 119% 3 20 48-136
#-Fails Limit Check
*-if no is selected, see third page for details.
1�
I hereby certify that I have reviewed and approve these data. l
Laboratory-� entative
642 Tamco Road* Reidsville, NC 27320
[phone] Ph* [phone] Fax

MERITECH, INC.
Environmental Laboratories
A Division of Water Technology and Contrail,Inc
Client: LouisianaPaaifo Corp. Merited;ID#: 092821125th
Project LA Wells Analysis: 10/04/21
Client Sample ID: Trip Blank Analyst V W V
Sample Collection: 09/28/21 Dilution Factor: 1
SW-846-8260D VOLATILE ORGANICS-Water
Acetone <50.0 ug/L cis-1,3-Dicbloropropene <0.500 ug/L
r
hl Di
<0.500 ug/L trans-1,3- coropopene <0.500 ug/L
Benzene Bromobeozene <0.500 ug/L Ethanol <50,0 ug L
Bromodichloromethane <0.500 ug/L Ethyl benzene <0500 ug/L
Bromochloromethane <0.500 ug/L Hexachlorobutadiene <0.500 ug/L
Bromo-form <0.500 ug/L 2 Hexanone <1.00 ug/L
Bromomethane <0.500 ug/L lsopropylhenzene <0.500 ug/L
2-Butanone(MEK) <5.00 ug/L p-Isopropyltoluene <0.500 ug/L
n-Butylbenzene <0.500 42 Methylene chloride <0.500 ug/L
sec-Butylbenzene <0.500 ug/L Methly Isobutyl Ketone(MTBK) <0.500 ug/L.
tent Butylhenzene <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
<0.500
Chloroform <0.500 ug/L 1,1,1,2-Tetrachloroethane ug/L
Chloromethane <0.500 ug/L 1,1,2,2-Tetrachloraethane <0.500 ug/L
2-Chlorotoluene <0.500 ug/L Tetrachlor ene(PCE) <0.500 ug/L
4-Chlarotoluene <0.500 ug/L Toluene <0.500 ug/L
Dibroasochloromethane <0.500 ug/L. 1,1,1-Trichloroethane <0.500 ug/L
1,2-Dibrotnn 3-chloropropane <0.500 ug/L 1,1,2✓Trichlorocthafte <0.500 ug/L
1,2Dibromoetbane(EDB) <0.500 ug/L Trichiaroethene(TCE) <0.500 ug/L
Dibromomethane <0.500 ug/L 1,2,3-Trichlorobeuzene <0.500 ug/L
Dichlorodifluoromethane <0.500 ug/L 1,2,4-Trichlorobeenzene <0.500 ug/L
1,1-fiehloroethane <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-Dichiorobenzene <0.500 ugL. 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 uglL Vinyl chloride <0.005 ug/L
cis-1,2-Dichloroethene <0500 ug/L ro/p-Xylenes <1.00 ug/L
trans-1,2 Dicliloroelhene <0.500 ug/L o-Xylene <0.500 ug/L
1,2 Dichloropropane <0.500 ug/L Additional Compounds
1,3 Dichloropropane <0.500 ug/L Methyl-tert-butyl ether(Mt 13E) <0.500 ueL
2,2-Dichloroprapaue <0.500 ug/L Isopropyl ether(IPE) <0.500 ug/L
1,1 Dichloropropene <0.500 ug/L
1,2 Dichloropropene <0,500 ug/L
1,0071111116
I hereby certify that I have reviewed and approve these data. Laboratory Re •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. MYleritech ID#: 092821125tb
Project: LA Wells Analysis: 10/04/21
Client Sample ID: Trip Blank Analyst. VWV
Sample Collection: 09t28/21 Dilution Factor: 1
Sample Volume: 5m1 purge Report Date: 10/12/21
%solid Nam$
Batch Blank =Below Reporting Limit (Yes)/No
Internal Standards method criteria acceptable (Yes)/No
Surrogate Recoveries Spike Cone Spike Recovery Limits
Dibromofluommethane 30 ug/L 96% 31-120%
Toluene-d8 30 uglL 87% 53-100%
Broimofluorobenzcne 30 ug/L 80% 42-115%
Laboratory QC Check
Matrix Spike Recoveries Acceptable (Yes)I No *
pike Compound Spike Conc Spike%Rec. Duplicate%Rec. RPD RPD Limits 9C Limits
1,1-Dichloroethene 25 ug/i. 58% 57% 1 20 40-133
Benzene 25 ug/L, 131% 131% 0 20 40-168
Trichloroethene 25 ug/L 87% 86% 2 20 42-143
Toluene 25 ug►L 103% 105% 2 20 58-154
Chlorobenzene 25 ug/L 116 a 119% 3 20 48-136
#-Fails Limit Check
*-If "no*is selected, see third page for details.
0114-
I hereby certify that I have reviewed and approve these data.
Laboratory R=: Z'utafi+e
642 Tamco Road*Reidsville, NC 27320
[phone] Ph* (336)342-16622 Fax

, .. _
41 DER!TECH, INC.
Environmental Laboratories
-, ,. A Division of Water Technology and Controls.Inc.
-1......, .
Client: Louisiana Pacific Corp. Meritech lD#i 092821/26
Project: LA Wells Analysis: 10/04/21
Client Sample ID: DSI MW3 Analyst: VWV
Sample Collection: 09/28/21 Dilution Factor: 1
SW 846-8260D VOLATILE ORGANICS -Water
Acetone <50.0 ug/L cis-1,3-Dichloropropene <0.500 ug/L
Benzene <0.500 ug/L trans-1,3-Di loropropene <0.500 ug/L
Bromobenzene <0.500 ug/L Ethanol <50.0 ug/L
Bromodichloromethane <0500 ug/L Ethyl benzene <0.500 ug/L
Bromochloromethane <0.500 ug/L Hexachlorobutadiene <0.500 ug/L
Bromofonn <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-lsopropyltoluene <0500 ug/L
n-Butylbenzene <0.500 ug/L Methylene chloride <0.500 ug/L
sec-Butylbenzene <0.500 ug/L Methly Isobutyl Ketone(M1BK) <0.500 ug/L
tent Butylbenzene <0.500 ngJL Methyl iodide <0.500 ug/L,
Carbon Tetrachloride <0.500 ug/L Naphthalene <0.500 trg/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 Tet rachloroethane <0.500 uglL
Chloromethane <0.500 ug/L 1,1,2,2-Tetrachloroethane <0.500 ug/L
2-Chiorvtoluene <0.500 ug/L Tetrachloroethene(PCE) <0.500 ug/L
4-Chlorotoluene <0.500 ug/L Toluene <0.500 ugly.
Dibromochlorornethane <0.500 ug/L 1,1,1-T chloroethane <0.500 ug/L
1,2 Dtibromo-3-chloropropane <0.500 trg/L 1,1,2-Trichloroethane <0.500 ug(L
l,2-Dbromoethane(LDB) <0.500 ugh,.. 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-Triehlorobenzene <0.500 ug/L
1,1-Dichlaroethane <0.500 ug/L 1,2,3 Trichloropropane <0.500 ug/L
I,2Dichloroe#hane <0.500 ug/L Trichlorofluoromethane <0300 ug/L
1,4-Dichlorobenzene <0.500 ug'L 1,2,4-Trimethylbenzene <0500 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/I.
cis-1,2 Dicbloroethene <0500 ug/L m/p-Xylenes <1.00 ug/L
trans-1,2 Dicblorneihene <0.500 ug'L o-Xylene <0.500 ug/L
1,2 Dichloropropane <0,500 ug/L Additional Compounds
1,3Dichloropropane <0.500 ug/L Methyl tent-butyl ether(MTBE) <0.500 ug/L
2,2-Dichloropropane <0.500 ug/L Isopropyl ether(IPE) <0.500 ug/L
1,1 Dichloropropene <0.500 ug/L
1,2-Dichloropropene <0.500 ug/Llibillik
1 hereby certify that I have reviewed and approve these data. Laboratory ' -• - +tatrve
642 Tamco Road* Reidsville, NC 27320
[phone] Ph* [phone] Fax

MERI TECH, INC.
s
Environmental Laboratories
..." A Division of Water Technology and Controls,Inc.
tir;rii
Client: Louisiana Pacific Corp, Meritech ID#: 092821126
Project: LA Wells Analysis: 10/04/21
Client Sample II): DSI-MW3 Analyst: VWV
Sample Collection: 09/28/21 Dilution Factor. 1
Sample Volume: 5m1 purge Report Date: 10/12/x 1
%solid NIA
Batch Blank =Below Reporting Limit {ales)I No *
Internal Standards method criteria acceptable (Yes)I No *
Surrogate Recoveries Splice Cone Spike Recovery L_im&
Dibromotluoramethane 30 ug/L 98% 31-120%
Toluene-d8 30❑gfL 88% 53-100%
Bromofluorohenzene 30 ug/L 81% 42-115%
Laboratory QC Check
Matrix Spike Recoveries Acceptable (Yes 1 I No *
Spike Compound Spike Cone Spike%Rec. Duplicate%Rec. RPD RPD Limits OC Limits
1,1-Dichloroeitiene 25 ug/L 58% 57% 1 20 40-133
Benzene 25 ug/L 131% 131% 0 20 40-168
Trichloroethene 25 ugfL 87% 86% 2 20 42-143
Toluene 25 ug/L 103% 105% 2 20 58-154
Chlorobenzene 25 ug/L, 116% 119% 3 20 48-136
#-Fails Limit Check
*-if "no"is selected, see third page for details.
I hereby certify that I have reviewed and approve these data.
Laboratory Repr tative
642 Tamca Road* Reidsville, NC 27320
[phone] Ph*[phone] Fax

MERITECH, I CY
Environmental Laboratories
A Division of Water Technology and Controls,Inc.
Client: Louisiana.Pacific Corp. Meritech ID#: 092821127
Project: LA Wells Analysis: 10/04/2I
Client Sample ID: DSI-MW4 Analyst: VWV
Sample Collection: 09/28/21 - Dilution Factor I
SW-846-8260D VOLATILE ORGANICS-Water
Acetone <50.0 ug/L cis-1,3-Dichloropropene <0.500 ug/L
Benzene <0.500 ug/L trans-1,3-Dichloropropene <0.500 ug/L
Bromobenzene <0.500 ug/L Ethanol <50.0 ugfL
Bromodichloromethane <0.500 ug'L Ethyl benzene <0.500 ug/L
Bromochloromethane <0500 ug/L Hexachlorobutadiene <0.500 ug/L
Bromofonn <0500 ug/L 2-Hexanone < 1.00 ug/L
Bromomethane <0.500 ugfL Isopropylbenzene <0500 ug/L
2 Butanone(MEK) <5.00 ug/L p-Isopropyltolaene <0.500 ug/L
n-Butylbenzene <0.500 ug/L Methylene chloride <0.500 ug/L
sec-Butylbenzene <0.500 ug/L Methly Isobutyl Ketone(MISK) <0.500 ug/L
tert-Butylbenzene <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 tie,
Chloroform <0300 ug/L 121,I,2-Te rachloroethane <0.500 ug/L
Chloromethane <0,500 ug/L 1,1,2,2-Tetrachloroethane <0.500 ug/L
2-Chlorotoluene <0500 ug/L Tetrachloroethene(PCE) . <0.500 ug/L
4-Chlorotoluene <0.500 ugfL Toluene <0500 ug/L
Dibromochloromethane <0.500 ug/L I,l,1-Trig chloroethane <0.500 ug/L
1,2-Dbromo-3-chloropropane <0.500 ugJL 1,1,2-Triebloroetl <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
Dichlorodiifluoromethane <0.500 ugIL 1,2,4-Trlchlorobenzene <0.500 ug(L
1,1-Dichloroethane <0.500 ug/L 1,2,3-Trichioropropane <0.500 ug/L
1,2-Dicl'iIoroethane <0.500 ug/L Trichlorofluoromethane <0500 ug/L
1,4-Dichlorobenzene <0.500 ug/L 1,2,4-Trime°thylbenzene <0500 ug/L
I,2-Dichlorobenzene <0.500 ug/L 1,3,5-Trimethyibenzene <0.500 ug/L
l,3-Dichlorobeuzene <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 ugh. map-Xylenes <1.00 ug/L
trans-1,2-Dichloroethene <0.500 ug/L o-Xylene <0.500 ug/L
1,2--Dichloropropane <0500 ug/L Additional Compounds
1,3-Dichloropropane <0.500 ug/L Methyl tert butyl ether(MTBE) <0300 ug/L
2,2 Dichloropropane <0.500 ug/L Isopropyl ether(1PE) <0.500 ug/L
1,1-Dichloropropene <0.500 ug/L
1,2-Dichloropropene <0.500 ugll.
Ph-
I hereby certify that I have reviewed and approve these data. Laboratory ' entative
642 Tamco Road* Reidsville, NC 27320
[phone] Ph*[phone] Fax

.8 MERI TEH, INC.
Environmental Laboratories
A Division of Water Technology and Controls,Inc.
Client: Louisiana Pacific Corp_ Merited]ID#: 092821127 _
Project: LA Wells Analysis: 10/04121
Client Sample ID: DSI-MW4 Analyst VWV
Sample Collection: 09/28/21 Dilution Factor: I
Sample Volume: 5m1 purge Report Date: 10/12/21
solid �T/g,
Batch Blank =Below Reporting Limit (Yes 1/No *
Internal Standards method criteria acceptable (Yes1/No *
Surrogate Recoveries Spike Cone Spike Recovery Limits
Dibromofluoromethane 30 ug/L 101% 31-120%
Toluene-d8 30 ug/L 88% 53-100%
Bromofluorobenzene 30 ug/L 78% 42-115%
Laboratory QC Check
Matrix Spike Recoveries Acceptable (Yes Z/No .
Spike Compound Spike Cone Spike%Rec. Duplicate%Rec. RPD RFD Limits QC Limits
1,1 Dichlaroethene 25 ug/L, 58% 57% 1 20 40-133
Benzene 25 ug/L. 131% 131% 0 20 40-168
Trichloroethene 25 uWL 87% 86% 2 20 42-143
Toluene 25 u;B'L 103% 105% 2 20 58-154
Chlorobenzene 25 ug/L. 116% 119% 3 20 48-136
#-Fails Limit Check
*-If "no"is selected, see third page for details_
I hereby certify that I have reviewed and approve these data. 1W-
Laboratory + :resentative
642 Tamco Road* Reidsville, NC 27320
[phone] Ph* [phone] Fax

,„ MERITECH, INC.
.1 Environmental Laboratories
"F!; - !• A Division of Water Technology and Controls,Inc.
Client Louisiana Pacific Corp_ Meritecb IDS: 092821128
Project LA Wells Analysis: 10/04/21
Client Sample ID: DSI MW5 Analyst: VWV
Sample Collection: 09/28/21 Dilution Factor; 1
SW-846-8260D VOLATILE ORGANICS-Water
Acetone <50.0 uglL cis-1,3 Dichloropropeae
<0.500 Q
Benzene <0.500 ug/L trans-1,3 Dic1 loropropene <0.500 ug/L
Bromobeuzene <0.500 ug/L Ethanol <50.0 ug/L
Bromodiehloromethane <0.500 ug/L Ethyl benzene <0.500 ug&L
Bromochloromethane <0.500 ug/L Hexachlorobutadiene <0.500 ug/L
Bromofoun <0500 ug/L 2-Hexanone <1.00 ug/L
Bromomethane <0500 ug/L Isopropylbenzene <0500 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 Methly Isobutyl Ketone(MIRK) <0.500 ug/L
tert-Butylbenzene <0.500 ug/L Methyl iodide <0.500 ug/L
Carbon Tetsacltloride <0.500 ug/L Naphthalene <0.500 ug/L
Chlorobenzene <0.500 ug/L n-Propylbenzene <0.500 u,fL
Chloroetbane <0.500 ug/L Styrene <0500 ug/L
Chloroform <0.500 ug/L 1,1,1,2Tetrachloroethane <0.500 ug/L
Cbloromethane <0500 41, 1,1,2,2 Teaacbloroethane <0.500 ug/L
2-Chlorotoluene <0.500 ug/L Tet<achloroethene(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-chioropropane <0.500 ug/L 1,1,2-Trichloroethane <0.500 ug/L
I,2 Dibromoethane(EDB) <0.500 ug/L Trichioroethene(TCE) <0.500 ug/L
Dibromomethane <0.500 ug/L 1,2,3-Trichlorobenzene <0500 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 ugfL
1,2Dichloroethane <0.500 ug/L Trichlorofluoromethane <0.500 ug/L
1,4-Dicblorobenzene <0500 ug/L 1,2,4 Trimethylbenzene <0.500 ug/L
1,2-Dichlorobenzene <0500 ug/L 1,3,5 Trimethylbenzene <0.500 ug/L
1,3Dichlorobexzene <0.500 ug/L Vinyl acetate <1.00 ug/L
1,1-Dichloroethene <0.500 ug/L Vinyl chloride <0.005 ugll,
eis-I,2-Dichloroethene <0.500 ug/L m/p-Xylenes <1.00 ug/L
trans-1,2Dichloraethene <0.500 ug/L o-Xylene <0.500 ug/L
1,2 Dichloropropane <0.500 ug/L Additional Compounds
l,3-Dichloropropane <0.500 ug/L Methyl-tert butyl ether(MTBE) <0500 ug/L
2,2-Dichlaropropane <0.00 ug/L Isopropyl ether(IPE) <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 a« f Ka e
642 Tamco Road* Reidsville, NC 27320
[phone] Ph* [phone] Fax

_ _
, _
4. ' MERITECH, INC.
Environmental Laboratories
A Division of Water Technology and Controls,Inc.
Client: Louisiana Pacific Corp. Meritech ID#: 092821128
Project: LA Wells Analysis: 10/04/21
Client Sample ID: DSI-MW5 Analyst: VWV
Sample Collection: 09/28/21 Dilution Factor: 1
Sample Volume: 5mlpurge Report Date: 10/12/21
%solid Ha
Batch Blank —Below Reporting Limit (Yes)/No *
Internal Standards method criteria accejitable (Yes)/No *
Surrogate Recoveries Spike Cone Sore Recovery Limits
Dibromofluoromethane 30 ug/L I00% 31-120%
Toluene-d8 30 ug/L 88% 53-100%
Bromofluorobenzene 30 ug/L 82% 42-115%
Laboratory QC Check
Matrix Spike RecoveriiciAcceptable (Yes)/No *
Spike Compound Spike Cone Spike%Rec. Duplicate%Rec. RPD RPD Limits QC Limits
1,1 Dichloroethene 25 ug/L 5.8% 57% 1 20 40-133
Benzene 25 agll. 131% 131% 0 20 40-168
Tricbloroethene 25 ug/L 87% 86% 2 20 42-143
Toluene 25 ug/L 103% 105% 2 20 58-154
Chlorobenzene 25 uWl. 118% 119% 3 20 48-136
#-Fails Limit Check
*-if"no"is selected, see third page for details.
I hereby certify That I have reviewed and approve these data.
Lebo tory Representative
642 Tamco Road*Reidsville, NC 27320
[phone] Ph* [phone] Fax

MERI TECH, INC.
,E,.4
Environmental Laboratories
A Division of Water Technology and Controls, Inc.
Client: Louisiana Pacific Corp. Meritech LD#: 092821129
Project LA Wells Analysis: 10/04/21
Client Sample ID: DSI-MW6 Analyst: V W V
Sample Collection: 09/28/21 Dilution Factor: 1
SW 846-8260D VOLATILE ORGANICS-Water
Acetone <50.0 ug/L cis-1,3 Dichloropropene <0.500 ug/L
Benzene <0.500 ug/L trans-1,3 Dichloropropene <0.500 ug/L
Bromobenzene <0.500 ug/L Ethanol <50.0 ug/L
Bramodichloromethane <0.500 ug/L Ethyl benzene <0.500 ug/L
Bromochloromethane <0500 41, Hexacblorobutadiene <0.500 ug/L
Bromofonm <0.500 ug/L 2Hexanone <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 Methly Isobtatyl Ketone(M BK) <0.500 ugfL
tert-Butylbenzene <0500 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-Propyibenzene <0.500 ug/L
Chloroethane <0.500 ug/L Styrene <0.500 ug/L
Chloroform <0.500 ug/L 1,1,1,2-Tetracbloroethane <0.500 ug/L
Chloromethane <0.500 ugL 1,1,2,2-Tetrachloroethane <0.500 ug/L
2-Chlorotoluene <0500 uglL Tetrachloroethene(PC'E) <0.500 ug/L
4-Chlorotoluene <0.500 ug/L Toluene <0.500 ug/L
Dibromocbloromethane <0.500 ug/L 1,1,1-Trichloroethane <0.500 ug/L.
1,2 Dibromo-3-chloroprs ue <0.500 ugfL 1,1,2-Trichloroethane <0500 ug/L
1,2-Dibromoethane(EDB) <0.500 ug/L Trichloroethene(t et.} <0.500 ug/L
Dibromomethane <0.500 ug/L 1,2,3-Trichlorobenzene <0.500 ug/I.
Dichlorodifluorometbane <0.500 ug/L 1,2,4-T richlorobenzene <0.500 ug/L
1,1-Dichloroethane <0.500 ug/L 1,2,3-Trichloropropane <0.500 ug/L
1,2-Dicbloroethane <0.500 ug/L Trichlorofluoromethane <0500 ug/L
1,4-Dichlorobenzene <0.500 ug/L 1,2,4-Trimethylbenzene <0.500 ug/L
1,2-Dichiorobenzene <0.500 ug(L 1,3,5-Trunethylbenzene <0.500 ugfL
l,3-Dichlorobenzene <0.500 ug,f 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-Dichloroethene <0.500 ug/L o-Xylene <0.500 Aga,
1,2-Dichloropropane <0.500 up,/ Additional Compounds
1,3-Dichioropropane <0.500 ug/L Methyl tert butyl ether(MTBE) <0-00 ug/L
2,2-Dichloropropane <0.500 ug(L Isopropyl ether(lrE) <0.500 ug/L
1,1 Dichloropropene <0.500 ug/L
l,2-Dichloropropene <0.500 ug/L
l hereby certify that I have reviewed and approve these data. Laboratory five
642 Tamco Road* Reidsville, NC 27320
[phone] Ph* [phone] Fax

_ ___
it
MERITECH, INC.
Environmental Laboratories
. , - A Division of Water Technology and Controls, Inc.
Ids
Client: Louisiana Pacific Corp. Meritech ID#: 092821129
Project: LA Wells Analysis: 10/04/21
Client Sample ID: DSI-MW6 Analyst: VWV
Sample Collection: 09/28/21 Dilution Factor: 1
Sample Volume: 5w1 purge Report Date: 10/12/21
%solid lia
Batch Blank =Below Reporting Limit (Yes)/No *
Internal Standards method criteria acceptable (Yes)/No *
Surrogate Recoveries Spike Cone Spike Recovery Limits
DiibroniofIuorornethane 30 ng/L 98% 31-120%
Toluene-d8 30 ug/L 86% 53-100%
Bromofluorobenzene 30 ug/L 79% 42-115%
Laboratory QC Check
Matrix Spike Recoveries Acceptable (Yes)/No *
Spike Compound Spike Conc Spike%Rec. Duplicate%Rec. RPD RPD Limits OC Limits
1,1-Dichloroetherie 25 ug/L 58% 57% 1 20 40-133
Benzene 25 ug/L 131% 131% 0 20 40-168
Tricbloreethene 25 ug/L 87% 86% 2 20 42-143
Toluene 25 ug'L 103% 105% 2 20 58-154
Cblorobenzene 25 ug/L 118% 119% 3 20 48-136
#-Fails Limit Check
*-If no is selected, see third page for details.
0
I hereby certify bat 1 have reviewed and approve these data t'
Laboratory '-V `entative
642 Tamco Road* Reidsville, NC 27320
[phone] Ph* [phone] Fax

..,.,AtE
MERITECH, INC.
. 7
Environmental Laboratories
4ilievri; - A Division of Water Technology and Controls, inc.
Client: Louisiana Pacific Corp. Meritecli ID#: 092821 I30
Projects LA Wells Analysis: 10/04/21
Client Sample ID: DSI MW9 Analyst: VWV
Sample Collection: 09/28/21 Dilution Factor: 1
SW-M6-8260D VOLATILE ORGANICS-Water
Acetone <50.0 ug/L cis-1,3 Dich1oropropene <0.500 ug/L
Benzene <0.500 ug/L trans-1,3-Dichloropropexie <0.500 ug/L
Bromobenzene <0.500 ug/L Ethanol <50.0 ug/L
Bromodichloromethane <0.500 ug/L Ethyl benzene <0.500 ug'L
Bromochloromethane <0.500 uglL Hexachiorobutadiene <0.500 ug/L
Bromoform <0.500 ug/L 2-1Iexanane <1.00 uglL
Bromometbane <0.500 ug/L Isopropyibeuzene <0.500 ug/L
2-Butanone(MEK) <5.00 ug/L p-Isopropyltoluene <0.500 ug/L
n-Butylbenzene <0.500 ugfL Methylene chloride <0.500 ug/L
see Butylbenzene <0.500 ug/L Methly Isobutyl Ketone(MIBK) <0.500 ugfL
tert Butylbenzene <0.500 ug/L Methyl iodide <0.500 ug/L
Carbon Tetrachloride <0.500 ug/L, Naphthalene <0500 ug/L
Chlorabenzene <0.500 ug/L n-Propylbenzene <0.500 ug/L
Chloroethane <0.500 ug/L Styrene <0.500 ugg,,
Ch1oiofo,au <0.500 ug/L 1,1,1,2-Telrachloroethane <0.500 ug/L
Chloromethane <0.500 ug/L 1,1,2,2-Tetrachlaroethane <0.500 ug/L
2-Chlorotoluene <0.500 ugfL Tetrachloroethene(PCE) <0.500 ug'L
4Chlorotaluene <0.500 ug/L Toluene <0500 ug/L
Dibromochloromethane <0500 ug/L 1,1,1-Trichloroethane <0500 ug/L
I,2-Dibromo-3-chloropropane <0.500 ug/L 1,1,2 Trichlaroethhanne <0.500 ug/L
1,2-Dibromoethane(EDB) <0.500 uglL 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-Tricblorobenzene <0300 ug/L
1,1 Dichloroethane <0.500 ug/L 1,2,3-Trichloropropane <0.500 ug/L
1,2-Dichloroethane <0.500 ug/L Trichloroftuoromethane <0.500 net,
1,4-DichlorobemPne <0500 ug/L 1,2,4-Trimethylbenzene <0.500 uglL
1,2-Dichlorobenzene <0.500 uglL 1,3,5-Trltnethylbenzene <0.500 ug/L
I,3-Dichlorobenzene <0.500 WI, Vinyl acetate <1.00 ug/L
l,l-Dichlaoroethene <0.500 ug/L Vinyl chloride <0.005 ug/L
cis-1,2 Dichioroethene <0.500 ug/L m/p-Xylenes <1.00 ug/L
trans-1,2 Diehloroethene <0.500 ug/L o-Xylene <0.500 ug/L
1,2-Dichloropropane <0.500 ug/L Additional Compounds
1,3 Dicbloropropane <0.500 ug/L Methyl tent butyl ether(MTBE) <0.500 ug/L
2,2-Dichloropropane <0.500 ug/L isopropyl ether(IPE) <0.500 ug/L
1,1-Dichloropropene <0.500 ug/L
1,2-Dichloropropene <0.500 ug/L
idim
I hereby certify that I have reviewed and approve these data. Laboratory Representative
642 Tamco Road* Reidsville, NC 27320
[phone] Ph * (336) 342-1E22 Fax

4. MERITECH, INC.
Environmental Laboratories
if:404; " A Division of Water Technology and Controls, Inc_
Client Louisiana Pacific Corp. Meritech IDS: 092821130
Project: LA Wells Analysis: 10/04121
Client Sample ID: DSI-MW9 Analyst: VWV
Sample Collection: 09/28/21 Dilution-Factor: 1
Sample Volume: 5m1 purge Report Date: 10/12/21
solid N/A
Batch Blank =Below Reporting Limit (Yes)/No *
Internal Standards method criteria acceptable (Yes)/No *
Surrogate Recoveries Spilre Cone Spike Recovery Limits
Dibromotluoromethane 30 ug/L 103% 31-120%
Toluene-d8 30 ug/L 88% 53-100%
Bromoiluorobenzene 30 ug/L 80% 42-115%
Laboratory QC Check
Matrix Spike Recoveries Acceptable (Yes)I No *
Spike Compound Spike Cone Spike%Rec. Duplicate%Rec. RPD RPD Limits OC Limits
1,1 Dichloroetheene 25 ug/L 58% 57% 1 20 40-133
Bement 25 ug/L 131% 131% 0 20 40-168
Trichloroethene 25 ug/L 87% 86% 2 20 42-143
Toluene 25 ug/L 103% 105% 2 20 58-154
Chlorobenzene 25 ug/L, 118% 119% 3 20 48-136
#-Fails Limit Check
*-If nna"is selected, see third page for details.
IL—
Laboratory'.11 hereby certify that I have reviewed and approve these data. entative
642 Tame(' Road* Reidsville, NC 27320
[phone] Ph* [phone] Fax

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