WQ0000461_Comprehensive Site Assessment_20220126

TRC
Comprehensive Site Assessment and
Corrective Action Plan
Louisiana-Pacific Corporation
Roaring River, Wilkes County, North Carolina
Residual Management Program
Reference Permit WQ0000
January 20
Jim M. Kirlin, P.E. Michelle Hays, P.G.
Wastewater Specialist Remediation Project Manager
TRC Environmental Corporation / Louisiana-Pacific Corporation
Comprehensive Site Assessment and Corrective Action Plan
Draft
\EMPLOYEES. ROOT. LOCAL \ENV\AMS\BROOKFI ELD\MLW-VOL1 \-\WPMLW \PJT2\390784 \0000\REPORT\R3907840000-001. DOCX
50 INTERNATIONAL DRIVE, SUITE 150, GREENVILLE, SC 29615, • 864.281.0030 PHONE • 864.281.0288 FAX • WWW.TR000MPANIES.COM

Table of Contents
1. Introduction 1
2. Site and Source Characterization 2
2.1 Site Characterization 2
2.2 Source Characterization 2
2.2.1 Surface Soil 2
2.2.2 Surface Water 3
2.2.3 Groundwater 3
2.3 Receptor Information 3
2.3.1 Water Supply Wells 3
2.3.2 Public Water Supplies 4
2.3.3 Surface Water 4
2.3.4 Wellhead Protection Areas 4
2.3.5 Subsurface Structures 4
2.4 Land Use 4
2.4.1 Sensitive Land U es ... 4
2.4.2 Property Ow and O' pants 5
3. Site Hydrology, Geologeology 6
3.1 Surface Hy' , ogy 6
3.2 Geology ... 6
3.3 Hydrogeolog 6
4. Groundwater and Surface ater Assessment 8
4.1 Groundwater Monitoring System 8
4.2 Groundwater Table and Flow Direction 8
4.3 Groundwater Sampling 8
4.4 Groundwater Quality 9
4.5 Surface Water Quality 10
5. Risk Evaluation 11
6. Corrective Action Plan 13
6.1 Phase 1: Two -Year Analysis 13
TRC Environmental Corporation / Louisiana-Pacific Corporation
Comprehensive Site Assessment and Corrective Action Plan
\\EMPLOYEES.ROOT.LOCAL\ENV\AMS\BROOKFIELD\MLW-VOL1\-\ WPMLW\PJT2\390784\0000\REPORTlR3907840000-001.DOCX Draft January 2022

6.2 Phase 2 14
7. References 15
List of Tables
Table 1
Table 2
Table 3
Table 4
Table 5
Table 6
Table 7
Table 8
Agronomic Rates for Land Application
Parcel Identification
Vertical Gradient Calculation
Well Construction Details
Summary of Groundwater Elevations
Summary of Field Parameters
Total Nitrate Concentrations in Groundwater
Nitrite Concentrations in Surface Water 4
List of Figures
Figure 1 Site Location Map
Figure 2 Field Identification and Sa
Figure 3 Soil Sampling Locati. is for A: J ► is .. 'cation Rates, December 2020
Figure 4 Surface Water ' . w Dir: ion
Figure 5 Photograph age
Figure 6 Public Well, Po rivate I, and Sensitive Receptor Survey
Figure 7 Parc .ti. iap
Figure 8 r Table S ce, ► ember 7, 2021
Figure 9 To'. itrate Co -ntrations in Groundwater
Figure 10 Nitrat- ce• .tions Compared to Rainfall
List of Appendices
Appendix A
Appendix B
Appendix C
Appendix D
Agronomic Soil Report
DWQ 2013 Study
Groundwater Analytical Report, December 2021
Surface Water Analytical Report, April 2021
TRC Environmental Corporation / Louisiana-Pacific Corporation
Comprehensive Site Assessment and Corrective Action Plan ii
\\EMPLOYEES.ROOT.LOCAL\ENV\AMS\BROOKFIELD\MLW-VOL1\-\ WPMLW\PJT2\390784\O00O\REPORTlR39O7840000-O01.DOCX Draft January 2022

Section 1
Introduction
The Louisiana-Pacific Corporation (LP) facility (Site) is located in Roaring River, Wilkes County, North
Carolina. The facility discontinued hardboard siding manufacturing activities in 2020 and converted to
siding finishing operations. Beginning in the 1980s, the facility utilized land application of process
wastewater treatment residual solids; however, land application was discontinued in all areas in 2018.
North Carolina Department of Environmental Quality (NC DEQ) issued Permit No. WQ0000461 dated
November 16, 2020, for Distribution of Class A Residuals (Permit). Although land application has been
discontinued, the Permit was renewed in order to manage the contin
component of the Permit. Nitrate in samples collected from three
with the former land application site have exhibited concentraf
requirements.
s in
groundwater monitoring
e monitoring wells associated
-ption to the Permit
LP submitted a Groundwater Investigation Report and cti ction Plan on May 14, 2021, to fulfill
Permit Condition 1.1. In a letter dated July 27, 2021, NC D quested the report be revised to meet
the requirements of a Comprehensive Site Asse SA) i ordance with 15A NCAC 02L.0103(e),
follow the guidelines outlined in 15A NCAC 02L.0 y the Corrective Action Plan (CAP)
requirements pursuant to 15A NCAC 0 '.(h). -tained TRC Environmental Corporation (TRC) to
complete this scope and a meetin: n Oct. • r 29, 2021, with personnel from LP, NC DEQ, and
TRC to determine the path forwa
The purpose of this repo o . t esults of CSA and outline a CAP to comply with the Permit
requirements.
TRC Environmental Corporation I Louisiana-Pacific Corporation
Comprehensive Site Assessment and Corrective Action Plan 1
\\EMPLOYEES.ROOT.LOCAL\ENV\AMS\BROOKFIELD\MLW-VOL1\-\ WPMLW\PJT2\390784\0000\REPORTlR3907840000-001.DOCX Draft January 2022

Section 2
Site and Source Characterization
2.1 Site Characterization
LP's Roaring River facility is generally bordered on the east by the Allura manufacturing facility and
active agriculture land and pasture, to the south by the Yadkin River, to the west by wooded and
agricultural land, and to the north by single family residences, wooded, and agricultural land. Most of
the adjacent land around the facility is wooded, pasture, or agriculture. The subject area includes the
Former Land Application Fields, located east of the facility, between th- transmission lines north of
Abtco Road and the Yadkin River. These Former Land Application Fi have private residences to the
north and northwest, non -LP agricultural land to the west, the Y. er to the south, wooded areas
to the southeast, and a fire department to the northeast. T outhern oad and Abtco Road bisects
the Former Land Application Fields. A site location map i ovided as Figur
2.2 Source Characterization
The facility conducted hardboard siding manufa ivitieitil 2020, when it converted to siding
finishing operations. The facility utilized land app • • ess wastewater treatment residual
solids that date back to the 1980s ove • Ids n. -d Field #21, Field #22, Field #23, Field #24, and
Field #25. Application of residuals field # ,was . ontinued in 2008 and application to the
remaining fields ended in 2018. TDSI-MW-1, DSI-MW-3, DSI-MW-4, DSI-MW-5,
DSI-MW-51, DSI-MW-6, DSI-W-7I, DSI-MW-8, and DSI-MW-9) are positioned within and
around the Fields, as ill .ted on re . onitoring well DSI-MW-2 was abandoned in October
2018. Nitrate levels in , ndwater pies collected from three monitoring wells (DSI-MW-1, DSI-
MW-5, and DSI-MW-9) ha hibit: oncentration in exception to the Permit requirements.
2.2.1 Surface Soil
Land application residuals transitioned from Class B material to Class A material in 2005. The
Fields have been utilized as crop land with seasonable corn crop as the main harvest.
Agronomic rate for land application of residuals has been established and documented at or
below recommended levels of application as shown on Table 1. In spring of 2019, a commercial
starter fertilizer was spread at a rate of 75 pounds per acre on all Fields, which is less than the
recommended rate of 125 pounds per acre for fertilizer.
On December 4, 2020, soil samples were collected by LP and sent to the North Carolina
Department of Agriculture and Consumer Services Agronomic Division. Multiple soil samples
were collected from seven areas across Field #25 identified as Locations 251LP through 257LP,
TRC Environmental Corporation / Louisiana-Pacific Corporation
Comprehensive Site Assessment and Corrective Action Plan 2
\\EMPLOYEES.ROOT.LOCAL\ENV\AMS\BROOKFIELD\MLW-VOL1\-\ WPMLW\PJT2\390784\0000\REPORTlR3907840000-001.DOCX Draft January 2022

composited, and analyzed for nutrients. Results suggest the allowed agronomic rates were
higher than any rate that was applied to the Fields since 2008. However, there is a potential for
a large storm to convey freshly applied fertilizer following application, in which the surface
water would pond in the low-lying areas of the site. Soil sampling locations are illustrated on
Figure 3 and soil analytical results are included as Appendix A.
2.2.2 Surface Water
Surface water runoff is believed to be a contributing factor in elevated nitrate levels in
groundwater. DSI-MW-1, which is located downgradient of Fields #22 through #24, receives
runoff from upper elevations including non -LP controlled land. Surface water accumulates near
this well and nitrate concentrations have increased after land . 'Iication was discontinued.
Additionally, monitoring wells DSI-MW-5 and DSI-MW-9 ar- cated outside the compliance
boundary of Field #25. These wells are located at the I. st - .tion in Field #25 and receive
extensive flooding, with extended periods of surfac .ter accu 'ting above the monitoring
wellheads. The adjacent, privately -owned crop : wes .f Field #2 ay also be a
contributing source because it has been obseryId #25 receives surface water runoff
from this crop field during excessive rain all and flo• • : events. Furthermore, DSI-MW-5 and
DSI-MW-9 receive back flow from the Y. xcessive rainfall events as these wells
are located within the 100-year floodplai River. Directional surface water flow
and ponding areas are illustraigure hile Figure 5 presents a photograph of the
flooding at Field #25.
2.2.3 Groundw
Groundwater ed levels of nitrate beginning in the mid-1990s through
2006, as report- the Con. trations and Occurrences of Nutrients in Soil and Groundwater
Beneath and Beyon. A: ' Itural Filed Used for Residuals Land Application in Wilkes County,
NC (Division of Water * ty [DWQ], 2013), included as Appendix B. Routine groundwater
sampling has confirmed elevated nitrate levels in three monitoring wells (DSI-MW-1, DSI-MW-5,
and DSI-MW-9).
2.3 Receptor Information
2.3.1 Water Supply Wells
Two public water supply wells are located approximately 1.5 miles northeast (upgradient) of the
Site at Stone Mountain State Park Visitor Center. There is one public water supply well located
approximately 2.75 miles to the southwest of the facility at Fairview Baptist Church. These
TRC Environmental Corporation / Louisiana-Pacific Corporation
Comprehensive Site Assessment and Corrective Action Plan 3
\\EMPLOYEES.ROOT.LOCAL\ENV\AMS\BROOKFIELD\MLW-VOL1\-\ WPMLW\PJT2\390784\0000\REPORTlR3907840000-001.DOCX Draft January 2022

public water wells would not be impacted by the apparent source area given the direction of
groundwater flow.
Residential wells are not included in the North Carolina well list. To identify residential wells in
the area, a visual survey from public roadways was conducted to identify potential private
groundwater wells within a one -mile radius of the site. No private wells were identified
downgradient within the one -mile radius. Two potential private wells are located upgradient of
the Former Land Application Fields. Given that these potential private wells are upgradient, it is
unlikely they would be impacted by the apparent source area. Public and potential private wells
are illustrated on Figure 6.
2.3.2 Public Water Supplies
The surrounding area is provided municipal water by BI i•, Water Association. Municipal
water piping is present within the right of way alonsouth s . .f Abtco Road.
2.3.3 Surface Water
The Yadkin River is south and adjacent t. ield #25, h of Field #23 by approximately 500
feet, south of Field #24 by approximate :• - sou Field #22 by approximately 800 feet,
and south of Field #21 by approximately
2.3.4 Wellhead Protec
The Site and surrounding ar
2.3.5 Subs
A utility corridor
Water Association, n
is no risk associated wit
of locd within a wellhead protection area (ESRI, 2021).
de of Abtco Road includes municipal water from Blue Ridge
s from Frontier Natural Gas and internet/communications. There
itrate vapor accumulation or potential threat to either public health,
safety, or the environment.
2.4 Land Use
The Site is surrounded by agricultural and agricultural activity to include poultry, cattle farms, and crop
land.
2.4.1 Sensitive Land Use Features
None identified. The Roaring River Elementary school is greater than one mile east from the
Former Land Application Fields. This receptor is side gradient of the apparent source area
onsite. The elementary school is shown on Figure 6.
TRC Environmental Corporation / Louisiana-Pacific Corporation
Comprehensive Site Assessment and Corrective Action Plan 4
\\EMPLOYEES.ROOT.LOCAL\ENV\AMS\BROOKFIELD\MLW-VOL1\-\ WPMLW\PJT2\390784\O00O\REPORTlR39O7840000-O01.DOCX Draft January 2022

2.4.2 Property Owner and Occupants
The Former Land Application Fields are owned by Louisiana Pacific Corporation. The Roaring
River Volunteer Fire Department is located approximately 150 feet east of Field #21 and private
residences are located approximately 150 feet north and northwest of Field #24. These
residences are topographically upgradient of the Former Land Application Fields. A crop field
immediately west of Field #25, side gradient, is privately owned. Parcels are identified on
Figure 7 and a summary of property owners is presented in Table 2.
TRC Environmental Corporation f Louisiana-Pacific Corporation
Comprehensive Site Assessment and Corrective Action Plan 5
\\EMPLOYEES.ROOT.LOCAL\ENV\AMS\BROOKFIELD\MLW-VOL1\-\ WPMLW\PJT2\390784\0000\REPORTlR3907840000-001.DOCX Draft January 2022

Section 3
Site Hydrology, Geology, and Hydrogeology
3.1 Surface Hydrology
There is a relief of approximately 180 feet from the northern edge of Field #21 down toward the Yadkin
River. Surface water runoff flows to the south across Fields #21 through 24 and east across Field #25,
ultimately toward the Yadkin River. The Southern Railroad bisects the Former Land Application Fields.
Although there is a drainage system along the Railroad that was designed to convey stormwater from
the upgradient fields to a nearby stream, the system has been clogged ith debris for many years. This
causes the Railroad to act as a barrier to surface water flow, resulti ponding on the southern end of
Field #23 around monitoring well DSI-MW-1. Flooding also occu southeast corner of Field #25,
near DSI-MW-5 and DSI-MW-9, which is a low-lying area tha o receiv ackflow from the Yadkin
River as it is within the 100-year floodplain. Directional s ce water runo 'llustrated on Figure 4.
3.2 Geology
The site is located at the boundary of the Inner :elttthe Blue Ridge Belt in the Brevard Fault
Zone, which is a series of ancient thrust faults. T Zone is a five -mile wide, east-northeast
trending inactive fault zone with a co ► uctu . nd metamorphic history (Brown, 1985). Bedrock
lithology consists of the Precambr .ge Cr snore tonic -volcanic group and the Ashe Formation, both
primarily composed of schists and , •'s al, 1972) which have undergone various degrees of
ductile and brittle deforma ' ' -go n this region consists primarily of saprolitic silty sands.
Boring information obtoring wells DSI-MW-1, DSI-MW-2, DSI-MW-4, DSI-MW-51, DSI-MW-7S,
DSI-MW-71, and DSI-MW-. • icate t Field # 25 is located on the flood plain of the Yadkin River and is
underlain by alluvial deposits y silty, sands, with some clay, followed by sand. Gravel and cobble
deposits were observed at depth of approximately 13 to 16 feet below land surface. Bedrock consisting of
mica schist was observed at 14 feet below land surface at well DSI-MW-4 to 16 feet below land surface at well
DSI-MW-2. At well DSI-MW-51, competent bedrock was encountered at 20 feet below land surface.
Little information is available regarding shallow geologic conditions at higher elevations at Fields #21 through
24. It is assumed that Site geology at these areas consists of sandy silty clayey soil and saprolite, and bedrock.
Based on observations at wells DSI-MW-2 and DSI-MW-4, it is assumed that the bedrock consists of mica
schist.
3.3 Hydrogeology
At Field # 25, groundwater occurs under water table conditions within the underlying alluvial deposits.
Little information is available regarding groundwater conditions at Fields #21 through 24. It is assumed that
TRC Environmental Corporation / Louisiana-Pacific Corporation
Comprehensive Site Assessment and Corrective Action Plan 6
\\EMPLOYEES.ROOT.LOCAL\ENV\AMS\BROOKFIELD\MLW-VOL1\-\ WPMLW\PJT2\390784\O00O\REPORTlR39O7840000-O01.DOCX Draft January 2022

groundwater in these areas also occur under water table conditions. At lower elevations, the water table
likely occurs within the saprolite and regolith. At higher elevations to the north, it is possible that the water
table is below the bedrock surface with the primary flow occurring within the joints and fracturs of the
bedrock. The water table (uppermost aquifer) fluctuates with seasonal variations in precipitation and
generally mimics the topography across the site. Groundwater flows southeast toward the Yadkin River.
Depth to water ranges from 7 to 14 feet below land surface at Field # 25 and approximately 50 feet below
land surface at the upgradient/background monitoring well, DSI-MW-3.
Linear groundwater flow velocity for wells screened in in the alluvial deposits at Field # 25 was calculated
using the following Darcy equation:
Where:
V = (K*I)/ne
V = average linear velocity : ay);
K = hydraulic conductiv' ' t
i = average hydrauli adient ( and
ne = effective po y.
Soil borings from Field # 25 indicated shallow soils consist : my silty, sands, with some clay, followed by
sand. Gravel and cobble deposits were observ= • -.ths o •roximately 13 to 16 feet below land surface.
Monitoring wells appear to be screened primaril , - a : sands with three wells (DSI-MW-2, DSI-
MW-51, and DSI-MW-71 partially screen-- :rave hydraulic conductivity for the shallow aquifer at Field
#25 was calculated during the DWI 3 St y (Ape dix B) to be 1.19 ft/day, which is typical of a stream
terrace deposit. The effective po ty wa - • , , be 0.35 (Driscoll, 1986), given the silty sand and gravel
alluvium. The estimated hydraulic g t of the water table, based on the December 7, 2021, gauging event,
is 0.029 ft/ft. Therefore,velocity for the water table aquifer is estimated to be 36 feet per
year.
The linear velocity equatio ing rate makes assumptions of a homogenous and isotropic aquifer.
This equation can over-estimat_ ocity when applied to heterogenous and anisotropic conditions, which are
believed to exist within this lithology as Piedmont geology often exhibits relict foliation. These relict
structures can result in locally anisotropic groundwater flow directions. Although the regolith and bedrock are
hydraulically connected, the effective porosity generally decreases with depth into the underlying fractured
bedrock.
The vertical gradient was evaluated between monitoring well pairs DSI-MW-5 and DSI-MW-51. The vertical
gradient, calculated using the December 2021 water elevations, is presented as Table 3. The vertical gradient
was approximately -0.04 feet/feet. The downward gradient suggests a connection exists between the upper
saprolite and upper bedrock.
TRC Environmental Corporation / Louisiana-Pacific Corporation
Comprehensive Site Assessment and Corrective Action Plan 7
\\EMPLOYEES.ROOT.LOCAL\ENV\AMS\BROOKFIELD\MLW-VOL1\-\ WPMLW\PJT2\390784\O00O\REPORTlR39O7840000-O01.DOCX Draft January 2022

Section 4
Groundwater and Surface Water Assessment
This section describes the groundwater monitoring system established by the Distribution of Class A
Residuals Permit No. WQ0000461 dated November 16, 2020. Compliance forms GW-59 and GW-59A
are submitted to NC DEQ following each sampling event. This section also summarizes the recent
surface water sampling event in preparation of this report.
4.1 Groundwater Monitoring System
Prior to 2015, semiannual groundwater sampling was performed at
The 2015 Permit modified the sampling frequency and annual gr
from 2016 through 2020. The 2020 Permit modified the sam i : f
sampling has been performed beginning in 2021. Current round
ormer Land Application Fields.
ter sampling was performed
req again, and semiannual
water ,itoring is conducted in
March and September from six monitoring wells: DSI- -1, DS -3, DSI-MW-4, DSI-MW-5,
DSI-MW-6, and DSI-MW-9. DSI-MW-3 serves as the upgr ackground monitoring well for the Site.
In addition to the routine groundwater samplin• _ ormed e Site, a separate sampling event was
conducted on December 7, 2021, in preparation
Groundwater samples are analyzed f
phosphorus, and total dissolved s
aforementioned monitoring wells
compared to the North Ca
as outlined in the Per
details are summarize
en as total ammonia, nitrogen as total nitrate, pH,
I sampling events. Annually in September, the
atile compounds. Constituent concentrations are
(2L Standards; 15A NCAC 2L.0202), where appropriate and
ations are illustrated on Figure 2. Well construction
4.2 Groundwater Tab! - d Flow Direction
Groundwater levels were gauged in monitoring wells during the December 7, 2021, sampling event.
Groundwater level measurements are obtained from the top of the well casings, which have been
surveyed to a common datum. Groundwater levels are summarized in Table 5. The groundwater flow
direction is toward the southeast, as depicted on Figure 8.
4.3 Groundwater Sampling
For the purpose of this report, intermediate monitoring wells DSI-MW-51 and DSI-MW-71 were also
sampled in addition to the compliance monitoring wells listed in Section 4.1. Monitoring wells were
purged of stagnant water in the well casing prior to collection of groundwater samples using disposable
bailers or a submersible pump by LP personnel. Wells were purged to remove a minimum of three well
TRC Environmental Corporation / Louisiana-Pacific Corporation
Comprehensive Site Assessment and Corrective Action Plan 8
\\EMPLOYEES.ROOT.LOCAL\ENV\AMS\BROOKFIELD\MLW-VOL1\-\ WPMLW\PJT2\390784\O00O\REPORTlR39O7840000-O01.DOCX Draft January 2022

volumes. Field parameters of pH, temperature, specific conductance, and turbidity were measured and
are summarized in Table 6. Groundwater samples were placed on ice and sent under chain -of -custody
to Meritech, Inc. for analysis.
4.4 Groundwater Quality
The focus of this report is on the nitrate concentrations in groundwater and as such, will be the only
constituent evaluated in this section. Nitrates were analyzed by the United States Environmental
Protection Agency (USEPA) Method 353.2. Nitrate, as nitrogen, has continually been detected at
concentrations above the 2L Standard, and the Permit, of 10 milligrams per liter (mg/L) in monitoring
wells DSI-MW-1, DSI-MW-5, and DSI-MW-9 since 2014.
As discussed in Section 2.2.2 and illustrated on Figure 4, ponding ocin two areas following excessive
rainfall. One of the ponding areas is located around monitoring MW-1 at the southern edge of
Field #23. Surface water pools at this location because the S hern Rai 'd acts as a barrier and the
drainage system does not properly convey the runoff. T cond ponding . : is the low-lying area on
the southeast corner of Field #25, in the vicinity of DSI- -5 SI-MW-9. The ponding in this area
occurs from both excessive rainfall and backflow from the in River.
Application of residuals to Field #25 was disconti , . an 'application to the remaining Fields
ended in 2018. However, nitrate conce ions s ove .II increasing trend in DSI-MW-1,
DSI-MW-5, and DSI-MW-9, suggesti at face er runoff from adjacent properties is a
contributing factor to groundwat +itrate - ra .ns when it is accumulated in pools surrounding
these wells.
As expected, monitori
a downward trend sinc
2014, respectively. Nitrate
below the 2L Standard. Nitrat
DSI-MW-6, along the Yadkin River in Field #25, have shown
n ceased and have been below the 2L Standard since 2020 and
ions in the background well, DSI-MW-3, have consistently been
centrations in the two intermediate wells sampled in December
2021 were also below the 2L Standard, suggesting that nitrate concentrations that exceed the 2L
Standards are present in only the shallow groundwater. A summary of historical nitrate concentrations
in groundwater is included as Table 7 and a graphical comparison of nitrate in monitoring wells is
presented as Figure 9. The laboratory analytical report from the December sampling event is included
as Appendix C.
The DWQ 2013 Study (Appendix B) concluded that nitrate concentrations in groundwater did not show
any significant seasonal changes. However, data suggest that the nitrate concentrations above
2L Standard are localized to monitoring wells in which surface water runoff accumulates. Annual rainfall
has been plotted against the nitrate concentrations in monitoring wells that exceed the 2L Standard
since 2018, presented as Figure 10. A relationship is apparent between elevated nitrate concentrations
TRC Environmental Corporation / Louisiana-Pacific Corporation
Comprehensive Site Assessment and Corrective Action Plan 9
\\EMPLOYEES.ROOT.LOCAL\ENV\AMS\BROOKFIELD\MLW-VOL1\-\ WPMLW\PJT2\390784\0000\REPORTlR3907840000-001.DOCX Draft January 2022

and rainfall, most notably in DSI-MW-1, showing higher observed nitrate concentrations during years
with excessive rainfall.
4.5 Surface Water Quality
On April 8, 2021, two surface water samples were collected by LP personnel from the Yadkin River and
identified as upstream and downstream in relation to the Former Land Application Fields. The samples
were sent to Meritech, Inc. and mistakenly analyzed for nitrite by USEPA Method 353.2 instead of
nitrate. The North Carolina In -Stream Target Value for nitrite Surface water, effective July 26, 2021, is
1 mg/L.
Both surface water samples collected on April 8, 2021, indicated nitr.
1 mg/L, and thus below the North Carolina Target Value. The ni
sample location was higher than the downstream location, i
contributing factor. The nitrite concentrations in surface er
sampling locations are illustrated on Figure 2, and the I
Appendix D.
The DWQ 2013 Study (Appendix B) concluded th
stream gage and concentrations were to - r whe
concluded that the average nitrate c
average of 1 mg/L.
ting o
samples ar
oncentrations of less than
centration in the upstream
e sources are most likely a
marized in Table 8,
alytical report is included as
ations in the Yadkin River varied with
age was higher. Additionally, this Study
e Yadkin River has been below the national
TRC Environmental Corporation / Louisiana-Pacific Corporation
Comprehensive Site Assessment and Corrective Action Plan 10
\\EMPLOYEES.ROOT.LOCAL\ENV\AMS\BROOKFIELD\MLW-VOL1\-\ WPMLW\PJT2\390784\0000\REPORTlR3907840000-001.DOCX Draft January 2022

Section 5
Risk Evaluation
Historical evaluation of groundwater data at the Site indicates that there is evidence of nitrate impacts in
groundwater. The Permit requires that a risk analysis and CAP be submitted that either sets forth the steps
to be taken to ensure that the contamination source is eliminated or that the plume is contained on the site.
Risk requires the following factors to be present:
■ Constituent of concern with quantifiable adverse health effects
■ Migration pathways to a point of potential exposure
■ Potential receptors
Of the constituents monitored in groundwater at the Site, ate has quan ble health effects and a
federal maximum contaminant level (MCL) that is base pot I health e fects. The federal MCL is the
same concentration as the NC 2L Standard of 10 mg/L. T commonly cited human health effect of
nitrate is methemoglobinemia, also known as "► .lue syn e." The effect is seen most commonly in
infants, who have low levels of stomach acid. U . ity ditions, indigenous bacteria chemically
reduce the nitrate to nitrite. The nitrite i
hemoglobin to form methemoglobin
the "no observed adverse effects
converts to nitrite in the stomach is
bsorb- R►' the :.od stream where it combines with
ocks oxygen -carrying capability of blood. The MCL is set at
nts. For healthy adults, the amount of nitrate that
ed to . - . bout five percent, thus increasing the concentration of
nitrate that can be consu ► t rse effects.
The migration pathway
groundwater flow from th
monitoring wells that exceed
r Land Application Fields to locations of potential exposure is by
ea to the Site boundary along and into the Yadkin River. The
rate 2L Standard are DSI-MW-1, DSI-MW-5, and DSI-MW-9. Monitoring
wells DSI-MW-5 and DSI-MW-9 are immediately adjacent to the Yadkin River. The DWQ 2013 Study
(Appendix B) concluded that the average nitrate concentration in the Yadkin River is below the national
average of 1 mg/L.
The Site is surrounded by low -density, rural development and agricultural land. As discussed in Section no
potable wells exist downgradient of the Site. No residential activity or development currently exist in
proximity to or near the area of elevated nitrate concentrations and the probability of any development
activity in the future of these areas is low. The closest receptor to the Former Land Application Fields is the
Yadkin River and this section of river meets water quality standards for nitrate and nitrite and is not typically
used recreationally. Although nitrate is present in the Site groundwater, no pathways of affected
TRC Environmental Corporation / Louisiana-Pacific Corporation
Comprehensive Site Assessment and Corrective Action Plan 11
\\EMPLOYEES.ROOT.LOCAL\ENV\AMS\BROOKFIELD\MLW-VOL1\-\ WPMLW\PJT2\390784\0000\REPORTlR3907840000-001.DOCX Draft January 2022

groundwater appear to be able to migrate to a potential point of exposure nor impact a receptor; therefore,
significant impact to human health is considered low.
TRC Environmental Corporation / Louisiana-Pacific Corporation
Comprehensive Site Assessment and Corrective Action Plan 12
\\EMPLOYEES.ROOT.LOCAL\ENV\AMS\BROOKFIELD\MLW-VOL1\-\ WPMLW\PJT2\390784\O00O\REPORTlR39O7840000-O01.DOCX Draft January 2022

Section 6
Corrective Action Plan
Permit Condition 1.1. states that LP must assess the cause, significance, and extent of the violation of
groundwater standards beyond the compliance boundary and submit an investigation report and CAP.
LP has taken a proactive approach to address elevated levels of nitrate concentrations by reducing
applications starting in 2008 and fully discontinuing residual application in 2018. Historical data trends
indicate a reduced level in overall nitrate concentrations that suggests current practice is having positive
results in most of the monitoring wells sampled.
While the root cause of elevated nitrate levels in three monitoring s is inconclusive, the following is
considered to be main contributing factors:
■ Contours and slopes directing concentrate flows durir riods of ex ve rainfall with potential
introduction of nitrates from non -LP sources,
■ Starter fertilizer applications during initial corn crop p hg, and
■ Potential nitrate residuals remaining from
residuals.
rocess wastewater treatment
Considering the increased nitrate ther sources, the following is a proposed phased
corrective action plan.
6.1 Phase 1: Tw
• Continue the pract .f not app ng residuals to the sites. Discontinuation of process wastewater
treatment residuals a • . .tio ' as completed in 2018.
• Continue semiannual grounater sampling in accordance with the Permit.
• No additional fertilizers applied for any purpose on Fields #21 through #25, with consideration of
only grass -type crop to be planted/harvested.
• Request the Southern Railroad maintain their right-of-way and clear the blockage from the
stormwater drain that contributes to ponding around DSI-MW-1.
• Following a rainfall event, collect two surface water samples from ponded areas near DSI-MW-1
and DSI-MW-5/DSI-MW-9, and analyze these samples for all nitrogenous species (nitrate, nitrite,
ammonia, and total kjeldahl nitrogen) to evaluate what concentrations are percolating into the
subsurface.
TRC Environmental Corporation / Louisiana-Pacific Corporation
Comprehensive Site Assessment and Corrective Action Plan 13
\\EMPLOYEES.ROOT.LOCAL\ENV\AMS\BROOKFIELD\MLW-VOL1\-\ WPMLW\PJT2\390784\O00O\REPORTlR39O7840000-O01.DOCX Draft January 2022

■ Conduct sample collection at DSI-MW-1, DSI-MW-4, DSI-MW-5, and DSI-MW-9 after an excessive
rain event or flooding, with samples collected at 1-week intervals for 6 weeks following the
rain/flooding event. Samples will be analyzed for nitrates only. Monitoring well DSI-MW-4 will
serve as a control for the sampling within the source area as it is in the Former Land Application
Fields but has shown a decrease in nitrate concentrations since land application ceased.
6.2 Phase 2
■ Evaluate planting of border trees at areas of high concentrations for phytoremediation.
■ Evaluate drainage correction measures.
TRC Environmental Corporation / Louisiana-Pacific Corporation
Comprehensive Site Assessment and Corrective Action Plan 14
\\EMPLOYEES.ROOT.LOCAL\ENV\AMS\BROOKFIELD\MLW-VOL1\-\ WPMLW\PJT2\390784\O00O\REPORTlR39O7840000-O01.DOCX Draft January 2022

Section 7
References
Brown, Philip M., 1985. Geologic Map of North Carolina, The North Carolina Geologic Survey. Scale
1:500,000.
Driscoll, Fletcher G., 1986. Groundwater and Wells, Second Edition. Johnson Screens, St. Paul.
ESRI ArcGIS, 2021. North Carolina Public Wellhead Protection Area for North Carolina. Created May 28,
2021. https://www.arcgis.com/home/item.html?id=548287235b9a48f :c2b27e3c41d3284. (January 6,
2022).
Louisiana-Pacific Corporation, 2021. Ground Water Nitrate Le nvest . on and Corrective Action
Report, May 14, 2021.
Rankin, D.W., G.H. Espenshade, and R.B. Neuman, 1972:
Salem quadrangle, North Carolina, Virginia, and
Geologic Investigations Map I-709-A. Scale 1:25
Map of the west half of the Winston -
Geologic Survey, Miscellaneous
TRC Environmental Corporation I Louisiana-Pacific Corporation
Comprehensive Site Assessment and Corrective Action Plan 15
\\EMPLOYEES.ROOT.LOCAL\ENV\AMS\BROOKFIELD\MLW-VOL1\-\ WPMLW\PJT2\390784\O00O\REPORTlR39O7840000-O01.DOCX Draft January 2022

Tables
's
(<
0
TRC Environmental Corporation 1 Louisiana-Pacific Corporation
Comprehensive Site Assessment and Corrective Action Plan
\\EMPLOYEES.ROOTLOCALIENV\AMS\BROOKFIELDIMLW-VOLT\-\WPMLWIPJT2139078410000\REPORTIR3907840000-001.DOCX Draft January 2022

Table 1
Agronomic Rates for Land Application
Year
Field
Cumulative PAN
RYE PAN
2014
1228-10387-21
1228-10387-22
1228-10387-23
1228-10387-24
1228-10387-25
14.89
37.51
20.61
89.64
0
122
122
122
122
0
2015
1228-10387-21
1228-10387-22
1228-10387-23
1228-10387-24
1228-10387-25
40.81
35.32
0
0
0
122
153
0
0
0
2016
1228-10387-21
1228-10387-22
1228-10387-23
1228-10387-24
1228-10387-25
0
44.32
0
122.
0
71
0
193
0
2017
1228-10387-21
1228-10387-22
1228-10387-23
1228-10387-24
1228-10387-25
.2
56.61
12.61
.16
0
122
153
153
122
0
2018
1228-10387-2
1228-10387-
1228-10387-2
122: • 87-24
- -25
0
.68
0
86.31
0
0
122
0
122
0
2019
28-10 -21
8- - .
1 i 0387-23
2: . 87-24
8-11 .7-25
0
0
0
0
0
0
0
0
0
0
2020
:-10387-21
8-10387-22
228-10387-23
1228-10387-24
1228-10387-25
0
0
0
0
0
0
0
0
0
0
2021
1228-10387-21
1228-10387-22
1228-10387-23
1228-10387-24
1228-10387-25
0
0
0
0
0
0
0
0
0
0
Notes:
PAN = Plant Available Nitrogen
RYE = Realistic Yield Expectations
Units = pounds/acre
TRC Environmental
CSA and CAP
1 \ employees.root.local \en v \AMS\Brookfield \MLW-VOL1 \-\ WPMLW \ PJT2 \390784 \0000\ Report\Tables
Field ID
Location
Acres
1228-10387-21
Beside Fire Department
5.94
1228-10387-22
Across from FD (Horse Shoe)
13.82
1228-10387-23
Narrow field west of RR
4.44
1228-10387-24
South of Abtco Rd Curve
16.6
1228-10387-25
Between RR and Yadkin River
9.07

Table 2
Parcel Identification
Parcel ID
Address
Owner Name
101134
OFF OLD 60
MATHIS PROPERTIES, LLC
1600250
180 ABTCO RD
DOBBINS, LINDA H
1600322
7194 ELKIN HWY 268
MEYERHOFFER, MARLON & JOANNA B
1600353
438 ABTCO RD
CHILDRESS, JAMES T & ANNIE M
1600680
594 ABTCO RD
SPARKS, JANELLA MAE
1601062
214 ELKIN HWY
JOHNSON, T R
1601414
214 ABTCO RD
ROARING RIVER VOLUNTEER FIRE DEPT INC
1601738
7194 ELKIN HWY 268
MYERHOFFER, JOANNA & MARLIN
1602159
804 ABTCO RD
LAMBEY, THOMAS W, HIGLEY, KATHY L & THEODORE D
1603359
OFF ABTCO RD
ROARING RIVER VOLUNTEER FIRE DEPT INC
1603447
522 ABTCO RD
BROWN, PEARLIE & CURTIS
1603639
1068 ABTCO RD
LOUISIA ACIFIC
1603640
1151 ABTCO RD
LOUI A PACIFIC
1604091
670 ABTCO RD
JO N, UEL SR
1604092
672 ABTCO ROAD
CK, DARL HARD
1604093
620 ABTCO RD
JORDAN, SAM
1604094
610 ABTCO RD
LES, END & YVONNE E
1604323
570 ABTCO RD
SBORNE, RICKY D
1604368
1149 ABTCO RD
CEM USA, INC
Notes:
Source: htt.s: .arcelinfo.wilkes .unt .net
TRC Environmental Corporation I Louisiana-Pacific Corporation Roaring River Facility
CSA and CAP
\employees.root.local\env\AMS\Brookfield \MLW-VOL1 \-\ WPMLW\PJT2 \390784 \0000\Report\Tables

Table 3
Vertical Gradient Calculation
Location/
Well ID
Depth to Water
(ft.)
12/7/2021
Difference in
Groundwater
Levels
(ft.)
Midpoint
of Screen
(ft.)
Difference
between Screen
Midpoints (ft.)
Vertical
Gradient
(ft./ft.)
DSI-MW-5
10.08
-0.42
12
10.5
-0.04
DSI-MW-51
10.5
22.5
Notes:
ft. = feet
Vertical gradient is the difference in water levels (deeper to shallower well) divided by the distance
between the midpoints of the screened intervals.
TRC Environmental Corporation I Louisiana-Pacific Corporation Roaring River Facility
CSA and CAP
1employees.root. local\env\AMS\Brookfield\MLW-VOL1 1-1WPMLW\PJT2\390784\0000\Report\Tables

Table 4
Well Construction Details
Location/
Well ID
Diameter
(in.)
Material
Total Depth
(ft. bls)
Screened
Interval
(ft. bls)
Height of MP
Above LS
(ft.)
LS
Elevation(1)
MP Elevation (1)
Latitude
Longitude
DSI-MW-1
4
PVC
19
9-19
3.35
99.52
102.87
36.20284206
-81.02164655
DSI-MW-2(2)
4
PVC
15
5-15
3.58
94.18
97.76
36.20199407
-81.02342722
DSI-MW-3
4
PVC
89
60-89
NA
NA
NA
36.20753758
-81.02171427
DSI-MW-4
4
PVC
16
6-16
3.17
88.
91.36
36.20063722
-81.02292158
DSI-MW-5
4
PVC
17
7-17
2.10
87.13
36.20196685
-81.01992544
DSI-MW-51
4
PVC
30
15-30
3.06
.4
88.54
36.20197178
-81.01994295
DSI-MW-6
4
PVC
21
4-21
1.42
88.18
89.60
36.20125738
-81.02138145
DSI-MW-7S
4
PVC
13
3-13
3.29
84.6
87.89
36.20172933
-81.0220974
DSI-MW-71
4
PVC
23
18-23
3.0
4.55
87.62
36.2017381
-81.02205472
DSI-MW-8
4
PVC
13
8-13
3.48
89.61
93.09
36.20234584
-81.02074222
DSI-MW-9
4
PVC
16.33
6.33-16.33
akilL
84.9
87.86
36.20194181
-81.01987322
Notes:
in = inches
ft. = feet
bls = below land surface
LS = land surface
MP = measuring point
NA = Not available
(1) The survey does not tie in any benchmark, so a ref
of the access road and the rail road, on south side of t
All of the elevations are relative to this point or to one an
(2) Monitoring well DSI-MW-2 was abandoned on October 4, 201
0.00 ft. datum artificially set on railroad tie, 22 ft east of the center of the intersection
d by two nails side by side, north to south oriented).
TRC Environmental Corporation I Louisiana-Pacific Corporation Roaring River Facility
CSA and CAP
\employees.root.local\env\AMS\ Brookfield \MLW-VOL1 \-\ WPMLW\ PJT2 \390784 \0000\Report\Tables

Table 5
Summary of Groundwater Elevations
Location/
Well ID
MP Elevationa)
Depth to Water
(ft.)
12/7/2021
Groundwater Surface
(ft.)
12/7/2021
DSI-MW-1
102.87
14.17
88.70
DSI-MW-2
97.76
Abandoned
10/4/2018
DSI-MW-3
NM
55.25
NM
DSI-MW-4
91.36
14.25
77.11
DSI-MW-5
87.13
10.08
77.05
DSI-M W-51
88.54
10.5
78.04
DSI-MW-6
89.60
17.58
72.02
DSI-MW-7S
87.89
NM
NM
DSI-M W-71
87.62
7.175X80.45
NMNM
10.77.19
DSI MW 8
93.09
DSI MW 9
87.86
Notes:
ft. = feet
MP = measuring point at the top of the casing
NM = Not measured
(1) The survey does not tie in any benchmark. the elevat are relative
to a reference point and one another.
TRC Environmental Corporation I Louisiana-Pacific Corporation Roaring River Facility
CSA and CAP
\employees.root.local\env\AMS\Brookfield \MLW-VOL1 \-\ WPMLW\PJT2 \390784 \0000\Report\Tables

Table 6
Summary of Field Parameters
Location/
Well ID
Sampling Date
pH
(S.U.)
Temperature
(°C)
Conductivity
(µS/cm)
Turbidity
(NTU)
DSI-MW-1
9/28/2021
4.44
19.5
309
45.1
12/7/2021
3.67
14.0
275
17.8
DSI-MW-2
--
--
--
--
--
DSI-MW-3
9/28/2021
4.74
15.1
55.7
18.5
12/7/2021
4.17
15.
45.4
15.5
DSI-MW-4
9/28/2021
5.35
212
177
12/7/2021
4.24
4.3
226
15.5
DSI-MW-5
9/28/2021
5.51
1
286
11.9
12/7/2021
4.43
281
16.1
DSI MW 51
12/7/2021
5.69
418
5.8
DSI-MW-6
9/28/2021
6.27
16.
163.2
14.5
12/7/2021
4.98
200
15.6
DSI-M W-7S
--
--
--
--
--
DSI-M W-71
12/7/2021
4.64
15.4
478
13.3
DSI-MW-8
--
--
--
--
DSI-MW-9
9/28/2021
.6
17.2
279
68.3
12/7/20
4.
15.8
306
16.6
Notes:
S.U. = Standard units.
°C = degrees Celsius.
uS/cm = Microsiemens per centimeter.
NTU = Nephelometric Turbidity Unit.
TRC Environmental Corporation I Louisiana-Pacific Corporation Roaring River Facility
CSA and CAP
\employees.root.local\env\AMS\ Brookfield \MLW-VOL1 \-\ WPMLW\ PJT2 \390784 \0000\Report\Tables

Table 7
Total Nitrate Concentrations in Groundwater
Location/
Well ID
Date Sampled
Total Nitrate
as Nitrogen
(mg/L)
DSI MW 1
9/19/2018
34.0
9/26/2019
9.59
9/29/2020
25.1
3/23/2021
17.5
9/28/2021
25.8
12/7/2021
24.2
DSI-MW-2
Abandoned
DSI-MW-3
Mar-14
0.59
Jul-14
0.67
Nov-14
0.49
Mar-15
0.37
Jul-15
0.34
9/20/2016
1.18
9/26/2017
1.52
9/19/2018
1.82
9/26/2019
85
9/29/2020
3/23/20
1.7
9/28/20
1.01
12/7/2021
0.78
DSI-MW-4
018
8.49
• 6
22.6
9 2 1
6.09
3/2 1
7.85
9/28 121
7.08
12/7/. '1
5.35
4
28.3
Jul-14
0.41
DSI-
Nov-14
26.4
Mar-15
21.1
Jul-15
32.2
9/20/2016
22.6
9/26/2017
17.2
9/19/2018
0.92
9/26/2019
10.0
9/29/2020
19.3
3/23/2021
13.7
9/28/2021
18.0
12/7/2021
17.9
DSI-M W-51
12/7/2021
1.16
TRC Environmental Corporation I Louisiana-Pacific Corporation Roaring River Facility
CSA and CAP
\employees.root.local\env\AMS\Brookfield \MLW-VOL1 \-\ WPMLW\PJT2 \390784 \0000\Report\Tables

Table 7
Total Nitrate Concentrations in Groundwater
Location/
Well ID
Date Sampled
Total Nitrate
as Nitrogen
(mg/L)
DSI-MW-6
Mar-14
12.9
Jul-14
29
Nov-14
0.1
Mar-15
6.17
Jul-15
0.48
9/20/2016
<0.10
9/26/2017
<0.10
9/19/2018
3.59
9/26/2019
1.31
9/29/2020
<0.10
3/23/2021
<0.10
9/28/2021
<0.10
12/7/2021
<0.10
DSI-MW-7S
Not Sa
DSI-M W-71
12/7/2021 9.40
DSI-MW-8
.ampled
DSI MW 9
9/19/201: 3.
9/26/21 15.9
9/29/2020 13.7
3/2021 / 15.0
• . ' 21.8
1. • /20 . <0.10
Notes:
< indicates the concentr
Gray shaded values i
standard of 10 m
b reporting limit.
he NC groundwater quality
d Permit requirements.
TRC Environmental Corporation I Louisiana-Pacific Corporation Roaring River Facility
CSA and CAP
\employees.root.local\env\AMS\Brookfield \MLW-VOL1 \-\ WPMLW\PJT2 \390784 \0000\Report\Tables

Table 8
Nitrite Concentrations in Surface Water
Location
Date Sampled
Nitrite
as Nitrogen
(mg/L)
Upstream
4/8/2021
0.98
Downstream
4/8/2021
0.57
Notes:
Both the North Carolina In -Stream Target Value and USEPA National Primary
Drinking Water Standards are 1 mg/L.
TRC Environmental Corporation I Louisiana-Pacific Corporation Roaring River Facility
CSA and CAP
\employees.root.local\env\AMS\Brookfield \MLW-VOL1 \-\ WPMLW\PJT2 \390784 \0000\Report\Tables

Figures
's
(<
0
TRC Environmental Corporation 1 Louisiana-Pacific Corporation
Comprehensive Site Assessment and Corrective Action Plan
\\EMPLOYEES.ROOTLOCALIENV\AMS\BROOKFIELDIMLW-VOLT\-\WPMLWIPJT2139078410000\REPORTIR3907840000-001.DOCX Draft January 2022

Saved By: DSZYNAL on 1/4/2022, 09:25:01 AM
U:1Louisiana Pacific\Roaring River\ArcGIS101FIG01_SITELOC.mxd
7RC - GE
FACILITY LOCATION
1151 ABTCO ROAD
ROARING RIVER, NC
BASEMAP: ESRI WORLD IMAGERY DATED FEBRUARY 2018
1"=1,000'0
1:12,000
1,000
FEET
SITE LOCATION
50 International Drive, Suite 150
Patewood Plaza Three
A
lle, SC 29615
,, TR� Phone: [phone]
Fax [phone]
LOUISIANA-PACIFIC CORPORATION
ROARING RIVER
DRAWN BY:
DJS
APPROVED BY:
MAH
FIGURE 1
SITE LOCATION MAP
PROJECT NO:
390784.0.0
FILE NO. FIGO1_SITELOC.mxd
DATE:
JANUARY 2022

BASEMAP: ESRI WORLD IMAGERY DATED FEBRUARY 2018
Path: U:\Louisiana Pacific\Roaring River\ArcGIS10\Figure 2.mxd
Date Saved: 1/11/2022 6:23:09 AM
LEGEND
Well Location
A
Active Monitoring Well
Abandoned Monitoring Well
Surface Water Sampling Locations
(April 8, 2021)
Land Application Fields
Wilkes County Parcel Boundaries
—Ow Flow Direction
Land Application Fields
Field # 21 = 5.94 acres
Field # 22 = 13.82 acres
Field # 23 = 4.44 acres
Field # 24 = 16.60 acres
Field # 25 = 9.07 acres
N
1 inch = 400 feet
0 200 400
Feet
LOUISIANA-PACIFIC CORPORATION
ROARING RIVER
FORMER LAND APPLICATION FIELD
FIELD IDENTIFICATION AND SAMPLING LOCATIONS
DRAWN BY: DJS
CHECKED BY: MAH
SCALE:
AS NOTED
PROJECT NO.: 390784.0.0
DATE: JANUARY 2022
APPROVED BY: MAH
FIGURE 2
C
50 International Drive
Patewood Plaza Three, Suite 150
Greenville, SC 29615
Phone: [phone]
www.trcsolutions.com

Figure 3
Soil Sampling Locations for Agronomic Application Rates, December 2020
TRC Environmental Corporation I Louisiana-Pacific Corporation
Comprehensive Site Assessment and Corrective Action Plan
\\EMPLOYEES.ROOT.LOCAL\ENV\AMS\BROOKFIELD\MLW-VOL1\-\ WPMLW\PJT2\390784\O00O\REPORTlR39O7840000-O01.DOCX Draft January 2022

BASEMAP: ESRI WORLD IMAGERY DATED FEBRUARY 2018
Path: U:\Louisiana Pacific\Roaring River\ArcGIS10\Figure 4.mxd
Date Saved: 1/11/2022 6:27:20 AM
LEGEND
Active Monitoring Well
{ Abandoned Monitoring Well
Land Application Fields
Wilkes County Parcel Boundaries
Flood Areas
-ON Flow Direction
N
1 inch = 600 feet
0 300 600
Feet
LOUISIANA-PACIFIC CORPORATION
ROARING RIVER
FORMER LAND APPLICATION FIELD
SURFACE WATER RUNOFF FLOW DIRECTION
DRAWN BY: DJS SCALE:
AS NOTED
CHECKED BY: MAH DATE: JANUARY 2022
PROJECT NO.: 390784.0.0
APPROVED BY: MAH
FIGURE 4
C
50 International Drive
Patewood Plaza Three, Suite 150
Greenville, SC 29615
Phone: [phone]
www.trcsolutions.com

Figure 5
Photograph of Field #25 at Flood Stage
Looking Southeast across Field #25.
DSI-MW-5 and DSI-MIN-9
TRC Environmental Corporation I Louisiana-Pacific Corporation
Comprehensive Site Assessment and Corrective Action Plan
\\EMPLOYEES.ROOT.LOCAL\ENV\AMS\BROOKFIELD\MLW-VOL1\-\ WPMLW\PJT2\390784\O00O\REPORTlR39O7840000-O01.DOCX Draft January 2022

. STONE MOUNTAIN STATE VISITOR CENTER
Path: U:\Louisiana Pacific\Roaring River\ArcGIS10\Sensitive_Receptor.mxd
Date Saved: 1/11/2022 6:40:30 AM
LEGEND
Possible Private Well
0 Public Water Supply Water Sources
Sensitive Receptor
Land Application Fields
1 Mile Radius around
JFormer Land Application Fields
0
1 inch = 2,500 feet
2,500 5,000
Feet
N
LOUISIANA-PACIFIC CORPORATION
ROARING RIVER
PUBLIC WELL, POSSIBLE PRIVATE WELL
AND SENSITIVE RECEPTOR SURVEY
DRAWN BY: DJS
CHECKED BY: MAH
SCALE:
AS NOTED
PROJECT NO.: 390784.0.0
DATE: JANUARY 2022
APPROVED BY: MAH
FIGURE 6
TRC
50 International Drive
Patewood Plaza Three, Suite 150
Greenville, SC 29615
Phone: [phone]
www.trcsolutions.com

BASEMAP: ESRI WORLD IMAGERY DATED FEBRUARY 2018
Path: U:\Louisiana Pacific\Roaring River\ArcGIS10\ParcellD.mxd
Date Saved: 1/6/2022 1:29:30 PM
LEGEND
Land Application Fields
Wilkes County Parcel Boundaries
1 inch = 600 feet
0 300 600
Feet
N
LOUISIANA-PACIFIC CORPORATION
ROARING RIVER
PARCEL IDENTIFICATION MAP
DRAWN BY: DJS SCALE:
AS NOTED
CHECKED BY: MAH DATE: JANUARY 2022
PROJECT NO.: 390784.0.0
APPROVED BY: MAH
FIGURE 7
C
50 International Drive
Patewood Plaza Three, Suite 150
Greenville, SC 29615
Phone: [phone]
www.trcsolutions.com

BASEMAP: ESRI WORLD IMAGERY DATED FEBRUARY 2018
Path: U:\Louisiana Pacific\Roaring River\ArcGIS10\Figure 8.mxd
Date Saved: 1/11/2022 6:51:22 AM
LEGEND
• Active Monitoring Well
88.70 With Groundwater Elevation (ft)
• Abandoned Monitoring Well
Land Application Fields
Groundwater Elevation Contour
Dashed Where Inferred.
—Ow Flow Direction
Notes:
The survey does not tie into a benchmark.
All of the elevations are relative to a common
reference point and one another.
Data in parentheses was not used in contouring
N
1 inch = 350 feet
0 175 350
Feet
LOUISIANA-PACIFIC CORPORATION
ROARING RIVER
FORMER LAND APPLICATION FIELD
WATER TABLE SURFACE, DECEMBER 7, 2021
DRAWN BY: DJS SCALE:
AS NOTED
CHECKED BY: MAH DATE: JANUARY 2022
PROJECT NO.: 390784.0.0
APPROVED BY: MAH
FIGURE 8
C
50 International Drive
Patewood Plaza Three, Suite 150
Greenville, SC 29615
Phone: [phone]
www.trcsolutions.com

40
35
30
25
-J
0)
E
d
as 20
Z
10
0
�a
1
Figure 9
Total Nitrate Concentrations in Groundwater
tDSI-MW-1
DSI-MW-3
1DSI-MW-4
DSI-MW-5
DSI-MW-51
DSI-MW-6
—I—DSI-MW-71
DSI-MW-9

90
80
70
60
C
7 50
C
co
ce
m 40
C
c
Q
30
20
10
Figure 10
Nitrate Concentrations Compared to Rainfall
Nitrate Standard -
10 mg/L
2018 2019 2020 2021
40
35
30
Rainfall
tDSI-MW-1
DSI-MW-5
DSI-MW-9
25
J
0
E
d
20 i
Z
15
a
0
1-
10 Note:
Each sampling
event portrayed is
from September to
5 depict consistent
data.
0

Appendix A
Agronomic Soil Report
TRC Environmental Corporation I Louisiana-Pacific Corporation
Comprehensive Site Assessment and Corrective Action Plan
\\EMPLOYEES.ROOT.LOCAL\ENV\AMS\BROOKFIELD\MLW-VOL1\-\ WPMLW\PJT2\390784\O00O\REPORTlR39O7840000-O01.DOCX Draft January 2022

0
m
4-
0
00
e4
a
co
t-
NCDABCS Agronomic Division Phone [phone] Website www.ncagr.goviagronomil
Report No. _'
."-F'.- 21715
Predictive
r • - ' .•
? � `' 9 S o 11 Report Mehlich-3 Extraction
`4.�•,, 1 r -
q;,•,;00. Links to Helpful Information
Client: Louisiana Pacific Corp.
1068ABTCORd
North Wdkesboro NC 28659
Sampled County Wilkes
Client ID: 360009
Advisor
Advisor ID:
Sampled. 12;0411020 R•c tved. 12:11;2020 Completed, 02/1D/2021 Farm 1228
Sampie ID: 251LP
Lime History:
Recommendations: Lime
Nutnenis e1
More
Information
Note 3 Ncte $
Crop (tons/acre) N P20s
1 -Coin grain 0.0 120. 160 0
2 -Small Grain (SG i 0.0 80-100 0
K20 Mg Mn Zn
110 0 pHS 0
110 0 pHS 0
Cu
0
0
B
0
0
Note 3 N.te $
Test Results [units • WN in
HM% WN CEC BS%
0 51 0 94 11.9
gicrt ; CEC and Na in meg/100 cm3; NO3-N in mgrdm3]:
Ac pH P4 K4 Ca% Mg%
94 0 7 6.8 164 17 76 17
Soil Cla Mineral
54 M Mn-Ali Mn•Al2 Zn-Al
44 255 492 492
Cu4
198
Na
0.1
ESP
1
SS4 NO3-N
Sample lo: 252LP
Lime History:
Recommendations: Lime
utrtents (Ibfacre}
More
Information
Nate 3
Crop (tons/acre) N PzOs
1 -Com grain o.4 120 - 160 r
2. Small Grain (SG) 0.0 80-100
Kz0 S Mn Zn
100 0 0 0
0 0 0 0
Cu
0
D
8
0
0
Note 3
Test Results [units -WN In glcrtrl; CEC and Na in meg1100 cm3; NO3•N In mgfdrt2}:
HM% WN CEC BS% Ac pH P4 K-I C
0-66 0.97 6.8 79 1.4 5.8 122 19
Soil Class: Mineral
Mn4 Mn-A11 Mn•Al2 Zn4 Zn-Al
42 336 219 212 283 283
Cu4
128
Na
0.0
ESP
SS-1 NO.-N
Sample ID: 253LP .
Lime History:
Recommendations: Lime
Nutnenis (lb acre)
More
information
Note 3 Note $
Crop (tonslacre}
1 -Corn. grain 0.0 +0 0
2 -Small Grain tSG) Br 0
O Mg S Mn Zn
100 0 0 pHS 0
100 0 0 tiHS 0
Cu
0
0
B
0
0
Note 3 Notee,,,
Test Results [units • WN in glow?: CEC and Na in m cm3; NO3- gl.
HM% WN CEC BS% Ac pH K•I • Mg%
0.18 0.98 15.1 96 0 6 6 9 13 21 23
Soil Class Mineral
54 Mn-1 Mn•AI1 Mn-Al2 Zn-I Zn-Ai
131 222 137 130 389 389
Cu-f
134
Na
0 1
ESP
1
SS -I NO3•N
North CahroII11.1
LOW
Reprogramming of the laboratory -information -management system that makes this report possible i4 being funned
through a grant from the North Carolina Tobacco Trust Fund Commission
Thank you for using agronomic services t0 manage nutrients and safeguard environmental goal):
• Steve Perrier Commtsstonor of Agrrcultu'e

Page 29 of 30
NCDA&CS Agronomic Division Phone: [phone] Website: www.ncagr.goviagronomll
Report No. FY21-SL021715
Page 2of3
Sample ID: 2S4LP
Lima History
Recommendations. Lima
Nutrients pb.aCrel
More
Information
Nate 3 Note $
Crop (tons/acre) N PZO5
1 - Com, gran 0 0 120 - 160 0
2 -Small Gran 1SGl 0 0 80-100 0
K20
90
90
Mg S
0 0
0 0
Mn Zn
pHS 0
pH$ 0
Cu
8
N rte 3 Note
Test Results [units • WN In glcrr11. CEC and Na in megf100 cm3; NO3-N in mgidm1J:
HM% WN CEC BS% Ac pH P-1 K-1 Ca% Mg%
0.51 1.01 11.1 93 0 8 6 7 143 25 75 17
Sd
41
Mn4
395
So11 Class:
Mn•AI1 Mn-Al2
243 236
Mineral
Zn-AI
7 347
Cud
144
Na
0,1
ESP
SS•1 NO)•N
Samp10 ID: 255LP
time History:
Recommendations: Lime
Nutnenls (
More
Information
Nole 3 Note $
Crop (tonalacre) N PtOe
1 -Corn grain 0.0 120. 160 0
2- Small Gram (SG) 0 0 80-100 0
K30
100
100
Mg
0
0 0
Zn
p 0
PH 0
Cu
0
0
8
0
0
Nvls 3 NQta S
Test Results [units - WN In glcrn': CEC end Na in meg1100 cm3; NO3-N in mgfdrn31:
HM% WN CEC BS% Ac pH P4 K-1 Ca% Mg%
0.41 0.98 117 95 4 6 6,8 216 21 76 17
Sd
47
Mn.I
363
Soil sag Mineral
-All 2 Zn4 Zn-AI
216 416 416
Cu4
181
Na
0.1
ESP
1
SS -I NO3•N
Sample 1D: 256LP
Lima History.
Recommendations: Lime
s ilb,acrel
More
Information
Note 3 We. $
Crop (tonatacre) N NOS
1 -Com. grain 0.0 120. 160 0
2 -Small Grain ISG) 0.0 80.100 0
r
t
Mg
4
0
Mn Zn
pH$ 0
pN$ 0
Cu
0
0
B
0
0
Note 3 Note $
Test Results [units • WN in Wed: CEC and Na In megi100 cm3: NOrN in mg/ •
HM% WN CEC BS% Ac pH P4 K4 C Mg%
0.66 0 90 11 0 92 O E1 6 8 109 18 4 18
S4
5:
Soil Class:
Mn-AI1 Mn-Al2
358 351
Mineral
Zn-1 Zn-AI
240 240
Cu4
182
Na
0 1
ESP
1
SS -I NO3-N
Sample ID: 257LP
Lime History
Recommendations: Lime
Nutrients fie acre)
More
Information
Note 3 Note $
Crop (Ions/acre) P3Os
1 -Corn. grain 24 - 0
2 -Small Grain 1SG) .0 100 0
KW
10C
100
Mg S
0 0
0 0
Mn Zn
pH$ 0
pH$ 0
Cu
0
0
B
0
0
Note 3 Nnte
Test Results [units - WN In g/cm3; CEC and Na in m 0 cm3; NO3-N In m3J:
HM% WN CEC BS% Ac pH K4 Ca Mg%
0 32 1.11 10 1 100 0 0 7 5 108 26
$4
35
Mn-
448
Soli Class:
Mn-All Mn-Al2
263 256
Mineral
Zn4 Zn-AI
720 720
Cud
135
Na
0 0
ESP
SS- H03-N

Page 30 of 30
NCDAECS Agronomic Division Phone. (919) 733-I655 Website www ncagr.gov'agronomil Report No. FY21-5L021715
Page 3 0 3
Understanding the Soil Report: explanation of measurements, abbreviations and units
Recommendations .
t me
Report Abbreviations
Ac exchangeable acidity
B boron
BS'. % CEC occupied by bas c tags
Ca'. % CEC occupied by calcium
CEC canon exchange capacity
Cu-t copper ndox
ESP exchangeable sodium percent
HMy. percent Mimic matter
potassium index
potash
M % CEC occupied by magnes um
MIN mineral soil Wass
Mn manganese
hin•AI1 Mn-avail ab+tindex for crop 1
ity
Mn•Al2 Mn-ava:tabit+ty index for crop 2
Mn-I manganese index
sec mineral -organic soil class
N nitrogen
Na sodium
NOI•N nitrate nitrogen
ORG organic soil class
pH current soil pH
P. phosphorus index
P2ds phosphate
S•I sulfur index
SS•t soluble sate index
WN weight per volume
Zn-AI zinc availability index
zn 1 zinc index
If testing finds that soil pH is too low for the cropfs) indicated, a limo recommendation wilt be given in units of either
tonacre or lb;1000 sq ft For best results, mix the Time into the top 6 to 8 inches of soil several months before planting
For no•btl or established plantings where this is not possible, apply no more than 1 to 15 tonacre (50 Ib/1000 sq ft) a a
time, even if the report recommends mare. You can apply the rest ,n similar increments every six months until the to
is applied If MG is recommended and lime is needed: use dotomitnc lime-
Fertilizer
Recommendations for field crops or other large areas are listed separately for each nutnent to be a.. (in units of
lb/acre unless otherwise specified) Recommendations for N (and sometimes for El) are based on r: ch held studies
for the crop being grown, not on soil test results K-I and P-1 values are based on test results an. . Id be > r , If they
are not, follow the fertilizer recommendations given. 11 Mg is needed and no lime is recomrnen. - `-0.22 a Mg) is
an excellent source: 175 to 250 lb per acre alone or in a fertilizer blend will usually sahsty crop ne - wets appear
only on reports for greenhouse soil or problem samples.
Farmers and other commercial producers should pay special attention to micronutrl a .HS. • or Z
notations appear on the soil report, refer to SNotq Secon¢,3 Nufnentc and Micrunutneefs ener .ers do not
need to be concerned about micronutrients Various crop notes also addre e fertiliz -. visit
ncagr.govfaqronomipubs htm
Recommendations for small areas, such as home lawns/gard i. : re listed nits of lb/ I sq ft . If you cannot fnd
the exact tertilrzer grade recommended on the report visit it I r •,• fit . nd information that
may help you choose a comparable alternate For more information, renmeoeners guide to FerrNer
Test Results
The first seven values [soil class. HM°O, WV. CE , ., Ac and Oil •cribe the soil and its degree of acidity The
remaining 16 IP-1. K-I, Ca%, Mg%, Mel, Mn•AI1, Mn. n-1. Zn-AI -I, S-I, SS-1, Na. ESP, SS -I, NO3•t- (not routine!)
available)] indicate levels of plant nutrients or other reedit - asu nt Visit ruse ncaer ev ero! + +r! t nffn

Appendix B
DWQ 2013 Study
TRC Environmental Corporation I Louisiana-Pacific Corporation
Comprehensive Site Assessment and Corrective Action Plan
\\EMPLOYEES.ROOT.LOCAL\ENV\AMS\BROOKFIELD\MLW-VOL1\-\ WPMLW\PJT2\390784\O00O\REPORTlR39O7840000-O01.DOCX Draft January 2022

Pit
-3ertea#-M--and Beyond ar Agricultural Field
y
171
huying Wang1 and Angela M. Moore2
1 NC Department of Environment and Natural
Resources Division of Water Quality
2Syngenta Crop Protection, Greensboro, NC
2013 WRRI, Raleigh

Contents
➢ Background and Purpose of Investigation
➢ Site Description and Historical Groundwater Data
➢ Characteristics of Residuals
➢ Methods of Investigation
➢ Hydraulic Characteristi' the Site
➢ Soil Sampling RestLs
➢ Water Quality jr IF Results
➢ Major Findings'
➢ Discussions
➢ Select References
➢ Acknowledgements

Site Map Showing Locations of Wells and Surface Waters
North Carol i rya
Legend
• Monitoring wells
O Piezometers
LP_O reeks
Study field

Approximate
Site Location
in the Yadkin
— Pee Dee
River Basin,
Yadkin River
Headwaters
Watershed
Blue Area: High Rock Lake
Watershed
G
Yatlkiu - Pee [lee Rive! Basin
Yadkin River Headwaters Watershed
Atn rY
. —
SURRY
ver
Ile) VVS
GrR15
c
LewdsOle
•
DAVIE ! AVIDSCH.
Se
r 1
LEGEND
• Approximate Site Location
• Class WS-V Waters
*Arm. Impaired Waters
(Category 4 and 5 Water)
V Water SuppN Watershed Protected
Area rw5+. w5a1. W ai ws-N1
. Approximate site location
in Yadkin - Pee Dee River Bashi
Yadkin River Headwaters
Watershed
(From DVVQ Environmental Sensitive Map, 2010)

Residuals haracteristics
mg TKN / kg dry waste
60000
50000
40000
TKN Concentrations for WWTP Residuals
(source: Annual land application permitting reports)
--Sludgefrom WWTP
-0-Flyash •
30000
20000
10000
0
•
-)t2
✓ r
0
h ->
)9 19
,s, d•
Date
✓ r
0
h h
1:7 O
cP ._9
->
Nitrogen Species Leached from Residuals
ion (mg/kg dry waste material)
1800
1600
1400
1200
1000
800
1
• NH3
ETKN
2 3
Replicate
4
>Organic nitrogen (TKN).,ia, th major nitrogen species (right)
and concentration varier. significantly (left)
>Combined NO2 + N,)3 wc s not detected in the leachate of the
residuals samples
>Dissolved phosphorus was 0.5 g/kg dry matter
> DOC was 33 g/kg dry matter; the bioavailable fraction was
about 84%
> Dissolved C:N ratio ranged from 15.7-19.8
(Moore and Wang, 2012)

Concentration of NO3-N, mg/L
70
60
50
40
30
20
10
0
Historic NO3-N Levels in Groundwater, 1988 to 2006
+ MW-1(middle of site)
BMW-4 (adjacent to river)
— e— M W-3(Background)
00 00
00 00 01 Ol O O N N m m ▪ In Ill l0 l0 h N CO CO 01 01 O O rI N N m m Ln Ln LD
00 00 00 00 01 01 01 01 Q1 Q1 Q1 O1 01 ▪ 01 01 Q1 O1 cn O1 01 O1 01 01 01 O O O O O O O O O O O O O O
• Q L Q Q Q L Q Q Q Q Q 6_ L Q L Q L 6_ L Q L Q L Q L Q L Q L-
a) Q
fo (o N t0 N fo (o N r0 co (o fo aJ (o v (o v al 4J (o a) al N al N to N (o v c0 N to 6
2 N 2 N 2 N 2 N 2 N 2 N 2 N 2 N 2 N 2 N 2 N 2 N 2 N 2 N 2 N 2 N 2 N 2 N 2 ow
Date Sampled

Methods of Investigation
➢ Monitoring wells 1nst7ilation
➢ Soil sampling and analysis
➢ Water quality sL) 1,-n1;ng and analysis
➢ Horizontal !Iyr_Arqulic conductivity and
groundwAte: 1,ow direction
determinan
➢ Hydraulic gradient between
groundwater and the Yadkin River

Hydraulic Characteristics of the Site
Ilk Alft
Ilk
Aft Ilk Ilk
if• WO OTT
O
Avera •
(f •
WO
• mments
Well
ID
Aquifer tested
Screen
interval
(ft, BLS)
MW-1
Alluvium, rich in clay
9-19
1.20
er table below top of screen,
only rising head tests were
performed
MW-2
Alluvium, sandy
5-15
.50
MW-3
Colluvium, saprolite
• •
Background well, not tested
MW-4
Alluvium, rich in clay
6-
2.00
Rising head only
MW-5
Alluvium
0.90
Rising head only
MW-5I
Alluvium to dry weathe
gneiss
1 5- 0
0.08
MW-6
Alluvium
4-21
0.40
MW-7S
Alluvium, sandy clay
interlayered with silty sand
3-13
1.50
MW-7I
Alluvium, sandy clay
interlayered with silty sand
18-23
0.10
Borehole may be smeared.
MW-8
Alluvium, silty sands
8-13
1.30
MW-9
Alluvium, silty sands
6-16
0.70
Well may not be well developed
Average of the shallow wells
1.19
Close to the likely low value (1
ft/d) for stream terrace deposit

Groundwater flow direction
36.2035
36.2030-
36.2025-
iv 36.2020-
75
J 36.2015-
36.2010
36.2005-
36.2000
-81.0240
-81.6230
-81.0220-81.6210
Longitude
Data collected on March 2, 2012
-81.6200
-81.0190

Hydraulic gradient,
14
12
10
8
6
4
2
0
- 2
- 4
- 6
- 8
- 10
- 12
- 14
Hydraulic gradient change between MW-9 and the Yadkin
River (MW-9 about 25-30 ft away from the river)
iiii
N l
•
•
.i
•s
•
010 ,
s
3
-r
•
•
•
1110P{
••
t
f
•
.
•
•
.
s
•
•
•
•
,
•
•
•
:
.
•
[
i
•
•
•
1
•
._
*$
•
i
is
O
O41' O
Date/time data recorded
Discharge to river
Recharge into bank

amplin. Results
Soil sample locations:
iezometer Locations
Monitoring wells
.4Soil Borings)
Sediment sample points

EPA lab
results of Soil
nutrients
Concentrations of NH3, NO2+NO3, mg/kg
40
35
30
25
20
15
10
5
0
B-1-0. B-1-1 B-1-2.5
• *Ammonia as N
• *Nitrate+Nitrite as N
• Total Phosphorus
B-1-5 B-1-10
600
500
400
300
200
100
0
Sam the 1 r and the fi st number = soil boringID; the second number =
p
depth at ample was collected. From left to right depth increasing
Concentrations of total P, mg/kg
Concentrations of NH3, NO2+NO3, mg/kg
140
120
100
80
60
40
20
0
1
Lo LPL 1.11 0 VD r1 Ln u1 0
O r1 N -I O N N
• Co� N
co m m
• *Ammonia
I II II ._ . , II
II I.IIII
Total Phosphorus
r. ; . k i. I 1
Q N '2
E
o � �
n N
W
Sample ID: the letter and the first number = soil boring number, and the second number = depth at which the sample collected; in each
boring, depth increasing from left to right; sample IDs without a number are surface or sediment samples
oS
Lfl O M
Cr 71 Lfl L11
th CO CD
CO
Lfl N <
Lfl Lf1 O
CD CO
CO U
0 0
O O
0
O
O
O
-1 M Lf1
tD
CO CO m
lD .--1
O N
N m
m
Lfl L11 0 LC)
(Ni 7I
A m ^ mob.ob
m 00
00
CO
Li) Ln
N Op
oo m
Co
O
ci
00
m
%-1 Lf1 Lfl W Lfl LC) N
O O LLJ ci (Ni
m m coo o a a
N N O U U
CL. CL
d
W
Alert Levels***
3000
2800
2600
2400
2200
2000
1800
1600
1400
1200
1000
800
600
400
200
0
Concentrations of total P, mg/kg

i.aaaa
6aaaa
e▪ i- 4aaaa
:12aaaa
tiaaaaa
aaaaa
.5aaaa
4aaaa
8 2aaaa
7aaa
scan
zThcaa
t 4aaa
i 3aaa
pain
iaaa
a
Total Organic Carbon
1111
11
1
11,1,
1
0
ch
0 ▪ rw ao rw
12- a th a a
_..____I_I_I_._IIII■■1III1. I.__II_uuII_
d , • ,�6 E * E '
Lb
c
4q --I ul 0 Q '~ ul Q --Irn in -1 i*r r ul � rn C ul - �l ul u I fl W rn rn
CI ,a r� T, '� in CA '~ '~ 66 6 666rti r� ch
rti • 0 ▪ ru m 9 �
th di dididith t
1,14
VVE.
Sample FD: the Ietteranrd the first number = scl! boring ID. and the second number= depthat
which the sample collected; sample I Ds. without a number are surface samples

Water Quality Sampling Results
>TOC was low and primarily as suspended phase. DOC was
below detection limit (BDL) in most of groundwater samples
and 2.6-8.5 mg/L in surface waters.
➢TKN was from BDL to 1.16 mg/L 'n groundwater and from
BDL to 3.7 mg/L in surface wate: s
>Ammonia was also low in bot,I ,i; undwater and surface
waters; was not detecter.; in mist of samples.
>Over 97% of nitrate Jett, ':tL d in water samples was in
dissolved phase, ran,:)nr, from 8.6 to 67 mg/L in shallow
monitoring wells. Nitrite was from BDL to 0.06 mg/L.
>Phosphorus levels were also very low (BDL to 0.65 mg/L) and
primarily in suspended phase.

Occurrences and concentrations (in blue )of nitrate, mg/L
13.3
2.0
0.9
■ urface water samples
GW monitoring wells
• Piezometer in hyporhei
zone
Result sampled during
understorm
■:PZ-3 410 Feet

MW-51
36.3 M -5
Changes in
concentration (mg/L) of
nitrate in groundwater
through riparian zone
and in surface water
rom the eastern creek to
the Yadkin River
022
022
22
014
. fCPZ-1 0.56
0.9
PZ-,
k

65.00
J
Y 55.00
0
'47. 45.00
c
u 35.00
0
v
. 25.00
i
Z 15.00
5.00
2.00
1.80
1.60
0
'47.. 1.40
c5
1.20
(41
c 1.00
0.80
0.60
2
0.40
0.20
0.00
Seasonal change of nitrate concentrations in groundwater
•
X X
■
•
•
■
♦ — ♦ MW-1
■ MW-2
♦ MW-4
X MW-5
X
7/12/2011 12/5/2011 3/26/2012 10/16/201
Date samples collected
Yadkin River Nitrate concentration versus
•
* •
•
X MW-7
MW-8
MW9
♦ CPZ-1
♦ CPZ-2
CPZ-3
>Nitrate concentrations
in groundwater did not
show any significantly
seasonal changes;
nightly decreased in
I\i V-5 and MW-9, and
slightly increased in
MW-2 and MW-8.
>Nitrate concentration
in the Yadkin River
appeared to vary some
with stream gage,
lower when stream
gage higher.
0.00
1.00 2.00
3.00 4.00
5.00 6.00
Stream gage, ft (from USGS 02112000 Yadkin River at Wilkesboro)

Major Findings
>High levels of nutrients in soil and sediments
were only detected in samples from the field
surface or at shallow depth, ai'1
concentrations decreasea ‘^;th depth quickly.
Nitrate concentratioW. rebound once water
table is reached. op*
>Phosphorus e,r:eF;ding 120 mg/kg, alert level,
was detected in all surface soil samples with
only one exception.

>Nitrate exceeding the state standard was
detected in shallow groundwater throughout
the study field and beyond.
>Phosphorus, ammonia, PIld TKN did not
appear to be groundwat€ rluality issues, but
concentrations increasC significantly in the
two unnamed hearwit6r streams during
thunderstorms. jil"�
lIP
>Denitrification h been occurring, but does
not appear to be consistent throughout the
field or within the riparian zone.

>The water quality of the two unnamed creeks
reflects groundwater quality very well. Nitrate
concentrations were similar to those in the
groundwater and much highF under base -flow
than under storm -flow cor:.iitiori.
>The nitrate contaminafr,u groundwater has
been discharging t ) (adkin River and two
unnamed tributrIb of the Yadkin River, but the
average nitrate cw.centration in the Yadkin
River has been below the national average (1
mg/L).

Discussions
The groundwater monitoring requirements set
in the permit appear to be F.u?quate to monitor
groundwater quality charigF for the study site.
>Documentation of r.i.+rcgen inputs in addition
to residuals to ar1\1 e pplication fields should be
emphasized or : rz-icifically required in the
permit.

Selected References
Moore, M. A. and Wang, S., 2012, Nitrogen and Carbon Availability From Land Applied
Timber Industry Residuals: Implications for Groundwater Impacts and State Policy,
Geological Society of America 2012 Annual Meeting in Charlotte, NC, Environmental Geoscience
Session 156 Poster #17
Hardy, D. H., Tucker, M.R. and Stokes C. E., 2013. Crop . ert,. ."ation Based on N.C. Soil Tests.
Circular no. 1. N.C. Department of Agriculture and Cor umer Sei 'ces, Agronomic Division. Raleigh,
NC. (http://www.ncagr.gov/agronomi)
Harrison, E.Z., McBride, M.B. and Bouldin, D.R. d application of sewage sludge: an
appraisal of the US regulations: Int. J. Environm6 "t ` , iu .-ollution, v. 11, no. 1, p.1-36
Rebecca, L. Cowell, 2010, Sludge, a free f arizer for farmers, can pose health and environmental
risks, INDY Week.Com, http://wU .✓.inay gee. com/indyweek/a-free- fertilizer -for -farmers -sludge -can -
pose -health -and -environmental- 'sks/Co tent?oid=1562962, accessed on February 11, 2011.
Fuhrer, Gregory J., Gilliom, Robert J., Hamilton, Pixie A., Morace, Jennifer L., Nowell, Lisa H., Rinella,
Joseph F., Stoner, Jeffrey D., and Wentz, Dennis A., 1999, The quality of our Nation's waters --
Nutrients and pesticides: U.S. Geological Survey Circular 1225, 82 p.
Simmons, R.C. and others, 1992, Nitrate Dynamics in Riparian Fores s: roun•water Studies, J.
ENVIRONQ. UAL.,V OL. 21, OCTOBER-DECEM19B9E2R, p. 660-665.
North Carolina Division of Water Quality (DWQ), 2010, Residuals Management Program Summary:
North Carolina Division of Water Quality Aquifer Protection Section's program summary report.

Acknowledgements
The authors wish to thank Sherri
Knight and her staff, Derek
Denard, Patrick Mitchell and
Melissa Rosebrock of the DWQ,
Aquifer Protection Section
WSRO for their contributions t,).„
this project. We appreciat:; L'1e
staff members of the GroL'Jwaier
Investigation Unit
of the DWQ Aquifer Prk:tF,;tion
Section for installation of all
monitoring wells. Thanks also go to
supports from the property owner.
Shuying.wangncdenr.gov, 336-771-5287
1
'

Appendix C
Groundwater Analytical Report, December 2021
TRC Environmental Corporation I Louisiana-Pacific Corporation
Comprehensive Site Assessment and Corrective Action Plan
\\EMPLOYEES.ROOT.LOCAL\ENV\AMS\BROOKFIELD\MLW-VOL1\-\ WPMLW\PJT2\390784\O00O\REPORTlR39O7840000-O01.DOCX Draft January 2022

Meritech, Inc.
Environmental Laboratory
Laboratory Certification No. 165
Contact: James Boles
Client: Louisiana-Pacific Corp.
1068 ABTCO Rd
North Wilkesboro, NC 28659
Report Date:
NPDES#:
Land App. Permit#:
Date Sample Rcvd:
Page 1
12/21/2021
NC0005266
WQ0000461
12/9/2021
Meritech Work Order # 12092135 Sample: DSI-MW1 Grab
Parameters
Total Dissolved Solids
Chloride
Ammonia, Nitrogen
Nitrate, Nitrogen
TKN
Nitrate/Nitrite, Nitrogen
Nitrogen, total
8260
Result
218 mg/L
2.9 mg/L
<0.1 mg/L
24.2 mg/L
<0.20 mg/L
24.2 mg/L
24.2 mg/L
Attached
Meritech Work Order # 12092136
Parameters
Total Dissolved Solids
Chloride
Ammonia, Nitrogen
Nitrate, Nitrogen
TKN
Nitrate/Nitrite, Nitrogen
Nitrogen, total
8260
Resul
23
1.
Sampl
/L
/L
g/L
ched
Analysis Date Reporting Limit
12/14/21 10 mg/L
12/13/21 0.5 mg/L
12/13/21 0.1 mg/L
12/10/2 0.10 mg/L
12/ 1 1.20 mg/L
1 /21 •.10 mg/L
1. / 0.20 mg/L
12/
lysis Date Reporting Limit
/14/21 10 mg/L
2/13/21 0.5 mg/L
12/13/21 0.1 mg/L
12/10/21 0.10 mg/L
12/14/21 0.20 mg/L
12/15/21 0.10 mg/L
12/15/21 0.20 mg/L
12/13/21 -
12/7/21
Method
SM 2540C
SM 4500 Cl B
EPA 350.1
EPA 353.2
EPA 351.1
EPA 353.2
EPA 353.2
EPA 8260
12/7/21
Method
SM 2540C
SM 4500 Cl B
EPA 350.1
EPA 353.2
EPA 351.1
EPA 353.2
EPA 353.2
EPA 8260
Meritech Work Order #
Parameters
Total Dissolved Solids
Chloride
Ammonia, Nitrogen
Nitrate, Nitrogen
TKN
Nitrate/Nitrite, Nitrogen
Nitrogen, total
8260
12092137
Result
Sample: DSI-MW4 Grab
170 mg/L
1.0 mg/L
<0.1 mg/L
5.35 mg/L
<0.20 mg/L
5.72 mg/L
5.72 mg/L
Attached
12/7/21
Analysis Date Reporting Limit Method
12/14/21 10 mg/L SM 2540C
12/13/21 0.5 mg/L SM 4500 C1 B
12/13/21 0.1 mg/L EPA 350.1
12/10/21 0.10 mg/L EPA 353.2
12/14/21 0.20 mg/L EPA 351.1
12/15/21 0.10 mg/L EPA 353.2
12/15/21 0.20 mg/L EPA 353.2
12/13/21 EPA 8260
642 Tamco Road, Reidsville, North Carolina 27320
tel.[phone] fax.[phone]

Meritech, Inc.
Environmental Laboratory
Laboratory Certification No. 165
Contact: James Boles
Client: Louisiana-Pacific Corp.
1068 ABTCO Rd
North Wilkesboro, NC 28659
Report Date:
NPDES#:
Land App. Permit#:
Date Sample Rcvd:
Page 2
12/21/2021
NC0005266
WQ0000461
12/9/2021
Meritech Work Order # 12092138
Parameters
Total Dissolved Solids
Chloride
Ammonia, Nitrogen
Nitrate, Nitrogen
TKN
Nitrate/Nitrite, Nitrogen
Nitrogen, total
8260
Result
215 mg/L
1.9 mg/L
<0.1 mg/L
17.9 mg/L
<0.20 mg/L
20.1 mg/L
20.1 mg/L
Attached
Meritech Work Order # 12092139
Parameters
Total Dissolved Solids
Chloride
Ammonia, Nitrogen
Nitrate, Nitrogen
TKN
Nitrate/Nitrite, Nitrogen
Nitrogen, total
8260
Result
91.3
1.9
Sample:
/L
ed
Sample: DSI-MW5 Grab
Analysis Date
12/14/21
12/13/21
12/13/21
12/10/2
12/14,
12
12
12/1
14/21
/13/21
12/13/21
12/10/21
12/14/21
12/15/21
12/15/21
12/13/21
Reporting Limit
10 mg/L
0.5 mg/L
0.1 mg/L
0.10 mg/L
0 mg/L
mg/L
0.20 mg/L
Reporting Limit
10 mg/L
0.5 mg/L
0.1 mg/L
0.10 mg/L
0.20 mg/L
0.10 mg/L
0.20 mg/L
12/7/21
Method
SM 2540C
SM 4500 Cl B
EPA 350.1
EPA 353.2
EPA 351.1
EPA 353.2
EPA 353.2
EPA 8260
12/7/21
Method
SM 2540C
SM 4500 CI B
EPA 350.1
EPA 353.2
EPA 351.1
EPA 353.2
EPA 353.2
EPA 8260
Meritech Work Order # 12092140 Sample: DSI-MW9 Grab
Parameters
Total Dissolved Solids
Chloride
Ammonia, Nitrogen
Nitrate, Nitrogen
TKN
Nitrate/Nitrite, Nitrogen
Nitrogen, total
8260
Result
254 mg/L
1.9 mg/L
<0.1 mg/L
<0.10 mg/L
<0.20 mg/L
11.9 mg/L
11.9 mg/L
Attached
12/7/21
Analysis Date Reporting Limit Method
12/14/21 10 mg/L SM 2540C
12/13/21 0.5 mg/L SM 4500 Cl B
12/13/21 0.1 mg/L EPA 350.1
12/10/21 0.10 mg/L EPA 353.2
12/14/21 0.20 mg/L EPA 351.1
12/15/21 0.10 mg/L EPA 353.2
12/15/21 0.20 mg/L EPA 353.2
12/13/21 EPA 8260
642 Tamco Road, Reidsville, North Carolina 27320
te1.[phone] fax.[phone]

Meritech, Inc.
Environmental Laboratory
Laboratory Certification No. 165
Contact: James Boles
CIient: Louisiana-Pacific Corp.
1068 ABTCO Rd
North Wilkesboro, NC 28659
Report Date:
NPDES#:
Land App. Permit#:
Date Sample Rcvd:
Page 3
NC0005266
WQ0000461
12/9/2021
Meritech Work Order # 12092141 Sample: DSI-MW51 Grab
Parameters
Total Dissolved Solids
Chloride
Ammonia, Nitrogen
Nitrate, Nitrogen
TKN
Nitrate/Nitrite, Nitrogen
Nitrogen, total
8260
Result
272 mg/L
40.0 mg/L
<0.1 mg/L
1.16 mg/L
0.50 mg/L
1.16 mg/L
1.66 mg/L
Attached
Meritech Work Order # 12092142
Parameters
Total Dissolved Solids
Chloride
Ammonia, Nitrogen
Nitrate, Nitrogen
TKN
Nitrate/Nitrite, Nitrogen
Nitrogen, total
8260
Result
152
5.7
Sample:
/L
Analysis Date Reporting Limit
12/14/21 10 mg/L
12/13/21 0.5 mg/L
12/13/21 0.1 mg/L
12/10/2 0.10 mg/L
12/14 0 mg/L
12 21 0. mg/L
12 2 0.20 mg/L
12/1
sis Date
14/21
/13/21
12/13/21
12/10/21
12/14/21
12/15/21
12/15/21
12/13/21
Reporting Limit
10 mg/L
0.5 mg/L
0.1 mg/L
0.10 mg/L
0.20 mg/L
0.10 mg/L
0.20 mg/L
12/7/21
Method
SM 2540C
SM 4500 CI B
EPA 350.1
EPA 353.2
EPA 351.1
EPA 353.2
EPA 353.2
EPA 8260
12/7/21
Method
SM 2540C
SM 4500 CI B
EPA 350.1
EPA 353.2
EPA 351.1
EPA 353.2
EPA 353.2
EPA 8260
I hereby certify thatl have reviewed and approve these data.
Laboratory Representative
642 Tamco Road, Reidsville, North Carolina 27320
tel.[phone] fax.[phone]

Client:
Project:
Client Sample ID:
Sample Collection:
MER!TECH, INC.
Environmental Laboratories
A Division of Water Technology and Controls, Inc.
Meritech ID#:
Analysis:
Analyst:
Dilution Factor:
Report Date:
SW-846-8260D VOLATILE ORGANICS - Water
Acetone
Acrylonitrile
Benzene
Bromodichloromethane
Bromochloromethane
Bromoform
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
1,1-Dichloroethane
1,2-Dichloroethane
1,4-Dichlorobenzene
1,2-Dichlorobenzene
1,3-Dichlorobenzene
1,1-Dichloroethene
cis-1,2-Dichloroethene
trans-1,2-Dichloroethene
trans-1,4-Dichloro-2-butene
1,2-Dichloropropane
1,3-Dichloropropene
1,1-Dichloropropene
1,2-Dichloropropene
Louisiana Pacific Corp.
WQ0000461
DSI-MW-1
12/07/21
< 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
< 0.500 ug/L
< 0.500 ug/L
< 0.500 u
< 0.500 ug'L
< 0.5
<0.
<0.5
< 0.500
< 0.500 u
< 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 chlori
Methly Isobutyl
Methyl iodide
Naphtha
n-Propy
Styrene
1 ,2-Te u V" oeth
oroethane
e (PCE)
,1-Tric . oethane
2-Trichloroethane
roethene (TCE)
1,2,-Trichlorobenzene
1,2,4-Trichlorobenzene
1,2,3-Trichloropropane
Trichlorofluoromethane
I,2,4-Trimethylbenzene
1,3 ,5-Trimethylbenzene
Vinyl acetate
Vinyl chloride
m/p-Xylenes
o-Xylene
Additional Compounds
Methyl-tert-butyl ether (MTBE)
Isopropyl ether (LPE)
I hereby certify that I have reviewed and approve these data.
12092135
12/13/21
VWV
1
12/16/21
< 0.500 ug/L
< 0.500 ug/I.,
< 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 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

Client:
Project:
Client Sample ID:
Sample Collection:
MERITECH, INC.
Environmental Laboratories
A Division of Water Technology and Controls, Inc.
Louisiana Pacific Corp. Meritech ID#:
WQ000046 1 Analysis:
Trip Blank Analyst:
12/07/21 Dilution Factor:
Report Date:
SW-846-8260D VOLATILE ORGANICS - Water
Acetone
Acrylonitrile
Benzene
Bromodichloromethane
Bromochloromethane
Bromoform
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 -chl oropropane
1,2-Dibromoethane (EDB)
Dibromometbane
Dichlorodifluoromethane
1,1-Dichloroethane
1,2-Drchloroethane
1,4-Dichlorobenzene
1,2-Dichlorobenzene
1,3-Dichlorobenzene
1,1-Dichloroethene
cis-1,2-Dichloroethene
tram-1,2-Dichloroethene
trans- I,4-Dichioro-2-butene
1,2-Dichloropropane
I,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 uglL
< 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
< 0.500 ug/L
< 0.500 ug/L
< 0.500 ug/L
< 0.500 ug/L
< 0.5
< O.
< 0.5
< 0.500
< 0.500 u
< 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
Hexachiorobutaddiene
2-Hexanone
Isopropylbenzene
p-Isopropyltoluene
Methylene chlori
Methly Isobutyl
Methyl iodide
Naphthal - ' e
n-Propy
Styrene
1 1,2-Te . eth
-Tetr. i oroethane
oroet ' e (PCE)
,1-Tric l . oethane
-Trichloroethane
roethene (TCE)
1,2,-Trichlorobenzene
I,2,4-Trichlorobenzene
1,2,3-Trichloropropane
Trichlorofluoromethane
I,2,4-Trimethylbenzene
1,3,5-Trimethylbenzene
Vinyl acetate
Vinyl chloride
m/p-Xylenes
o-Xylene
Additional Compounds
Methyl-tert-butyl ether (MTBE)
Isopropyl ether (IPE)
I hereby certify that I have reviewed and approve these data.
12092135tb
12/13/21
VWV
1
12/16/21
< 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 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 uglL
< 0.500 ug/L
< 0.500 ug/L
<0.500 ug/L
Labora ory Representative
642 Tamco Road * Reidsville, NC 27320
[phone] Ph * [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#:
WQ0000461 Analysis:
DSI-MW-3 Analyst:
12/07/21 Dilution Factor:
Report Date:
SW-846-8260D VOLATILE ORGANICS - Water
Acetone
Acrylonitrile
Benzene
Bromodichloromethane
Bromochloromethane
Bromoform
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
1,1-Dichloroethane
I ,2-Dichloroethane
1,4-Dichlorobenzene
1,2-Dichlorobenzene
1,3-Dichlorobenzene
1,1-Dichloroethene
cis-1,2-Dichloroethene
trans-1,2-Dichloroethene
trans-1,4-Dichloro-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 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
< 0.5
< O.
< 0.50
< 0.500
< 0.500
< 0.500
< 0.500
< 0.500
< 0.500
< 0.500
< 0.500
< 0.500
<0.500
< 0.500
< 0.500
u
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
cis-1,3-Dichloropropene
trans-1,3-Dichloropropene
Ethanol
Ethyl benzene
Hexachlorobutadiene
2-Hexanone
Isopropylbenzene
p-Isopropyltoluene
Methylene chlori
Methly Isobutyl
Methyl iodide
Naphthal
n-Propyl
Styrene
1 2-Te oeth
Tetra 1 oroethane
oroe e (PCE)
1-Tric o oethane
-Trichloroethane
roethene (TCE)
1,2,3-Trichlorobenzene
,2,4-Trichlorobenzene
1,2,3-Trichloropropane
Trichlorofluoromethane
1,2,4-Trimethylbenzene
1,3,5-Trimethylbenzene
Vinyl acetate
Vinyl chloride
m/p-Xylenes
o-Xylene
Additional Compounds
Methyl-tert-butyl ether (MTBE)
Isopropyl ether (IPE)
I hereby certify that I have reviewed and approve these data.
12092136
12/I3/21
VWV
1
12/16/21
< 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 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
< 0.500 ug/L.
< 0.500 ug/L
Laboratory Re tative
642 Tamco Road * Reidsville, NC 27320
[phone] Ph * [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#:
WQ0000461 Analysis:
DSI-MW-4 Analyst:
12/07/2I Dilution Factor:
Report Date:
SW-846-8260D VOLATILE ORGANICS - Water
Acetone
Acrylonitrile
Benzene
Bromodichloromethane
Bromochloromethane
Bromoform
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
1,1-Dichloroethane
1,2-Dichloroethane
1,4-Dichlorobenzene
1,2-Dichlorobenzene
1,3-Dichlorobenzene
1,1-Dichloroethene
cis- I ,2-Dichloroethene
trans-1,2-Dichloroethene
trans-1,4-Dichloro-2-butene
1,2-Dichloropropane
1,3-Dichloropropene
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 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
< 0.5
< O.
< 0.50
< 0.500
< 0.500 u
< 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
Hexachiorobutadiene
2-Hexanone
Isopropylbenzene
p-Isopropyltoluene
Methylene chlori
Methly Isobutyl
Methyl iodide
Naphthal
n-Propy
Styrene
1 ,2-Te R ' oeth
Tetr. i oroethane
oroe ' e (PCE)
,1-Tric • oethane
-Trichloroethane
roethene (TCE)
1,2,3-Trichlorobenzene
1,2,4-Trichlorobenzene
1,2,3-Trichloropropane
Trichlorofluoromethane
1,2,4-Trimethylbenzene
1,3 ,5-Trimethylbenzene
Vinyl acetate
Vinyl chloride
m/p-Xylenes
o-Xylene
Additional Compounds
Methyl-tert-butyl ether (MTBE)
Isopropyl ether (IPE)
I hereby certify that I have reviewed and approve these data.
I2092137
12/13/21
VWV
1
12/16/21
< 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 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

Client:
Project:
Client Sample ID:
Sample Collection:
MERITECH, INC.
Environmental Laboratories
A Division of Water Technology and Controls, Inc.
Louisiana Pacific Corp. Meritech ID#:
WQ0000461 Analysis:
DSI-MW-5 Analyst:
12/07/21 Dilution Factor:
Report Date:
SW-846-8260D VOLATILE ORGANICS - Water
Acetone
Acrylonitrile
Benzene
Bromodichloromethane
Bromochloromethane
Bromoform
Bromomethane
2-Butanone (MEK)
n-Butylbenzene
sec-Butylbenzene
Carbon disulfide
Carbon Tetrachloride
Chlorobenzene
Chloroethane
Chloroform
Chloromethane
2-Chlorotoluene
4-Chlorotoluene
Dibromochloromethane
I,2-Dibromo-3-chloropropane
I,2-Dibromoethane (EDB)
Dibromomethane
Dichlorodifluoromethane
1,1-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
I,2-Dichloropropane
I,3-Dichloropropane
1,1-Dichioropropene
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
< 0.500 ug/L
< 0.500 ug/L
< 0.500 u
< 0.500 u
< 0.5
< 0.
< 0.50
< 0.500
< 0.500 ug
< 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 chlori
Methly Isobutyl
Methyl iodide
Naphtha!
n-Propy
Styrene
2-Te oeth
oroethane
e (PCE)
,I-Trico oethane
-Trichloroethane
roethene (TCE)
1,2,3-Trichlorobenzene
1,2,4-Trichlorobenzene
1,2,3-Trichloropropane
Trichlorofluoromethane
1,2,4-Trimethylbenzene
1,3 ,5-Trimethylbenzene
Vinyl acetate
Vinyl chloride
m/p-Xylenes
o-Xylene
Additional Compounds
Methyl -tent -butyl ether (MTBE)
Isopropyl ether (IPE)
I hereby certify that I have reviewed and approve these data.
12092138
12/13/21
VWV
1
12/16/21
< 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 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.ug/L
< 0.00500 ug/L
< 1.00 ug/L
< 0.500 ug/L
< 0.500 ug/L
< 0.500 ug/L
Laboratory Representative
642 Tamco Road * Reidsville, NC 27320
[phone] Ph * [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#:
WQ0000461 Analysis:
DSI-MW-6 Analyst:
12/07/21 Dilution Factor:
Report Date:
SW-846-8260D VOLATILE ORGANICS - Water
Acetone
Acrylonitrile
Benzene
Bromodichloromethane
Bromochloromethane
Bromoform
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
1,1-Dichloroethane
1,2-Dichloroethane
1,4-Dichlorobenzene
1,2-Dichlorobenzene
I,3-Dichlorobenzene
1, I-Dichloroethene
cis-1,2-Dichloroethene
trans-1,2-Dichloroethene
trans-1,4-Dichloro-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 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
< 0.5
< 0.
< 0.50
< 0.500 u
<0.500 u
< 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 chlori
Methly Isobutyl
Methyl iodide
Naphtha]
n-Propyl
Styrene
1 2-Te . V oeth
oroethane
e (PCE)
1-Tric o oethane
-Trichloroethane
roethene (TCE)
1,2,3-Trichlorobenzene
,2,4-Trichlorobenzene
1,2,3-Trichloropropane
Trichlorofluoromethane
1,2,4-Trimethylbenzene
1,3,5-Trimethylbenzene
Vinyl acetate
Vinyl chloride
m/p-Xylenes
o-Xylene
Additional Compounds
Methyl-tert-butyl ether (MT13E)
Isopropyl ether (IPE)
I hereby certify that I have reviewed and approve these data.
12092139
12/13/21
VWV
1
12/16/21
< 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 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
< 0500 ug/L
< 0.500 ug/L
500 ug/L
Laboratory 1;Cr'entative
642 Tamco Road * Reidsville, NC 27320
[phone] Ph * [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#:
WQ0000461 Analysis:
DSI-MW-9 Analyst:
12/07/21 Dilution Factor:
Report Date:
SW-846-8260D VOLATILE ORGANICS - Water
Acetone
Acrylonitrile
Benzene
Bromodichloromethane
Bromochloromethane
Bromoform
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
1,1-Dichloroethane
1,2-Dichloroethane
1,4-Dichlorobenzene
1,2-Dichlorobenzene
1,3-Dichlorobenzene
1, I-Dichloroethene
cis-1,2-Dichloroethene
trans-1,2-Dichloroethene
trans-1,4-Dichloro-2-butene
1,2-Dichloropropane
1,3 Dicliloropropane
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 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 utr/L
< 0.5
< 0.
< 0.50
< 0.500
< 0.500
< 0.500
< 0.500
< 0.500
< 0.500
< 0.500
< 0.500
< 0.500
< 0.500
< 0.500
< 0.500
u
u
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
cis-1,3-Dichloropropene
trans-1,3-Dichloropropene
Ethanol
Ethyl benzene
Hexachlorobutadiene
2-Hexanone
Isopropylbenzene
p-Isopropyltoluene
Methylene chlori
Methly Isobutyl
Methyl iodide
Naphthal
n-Propyl
Styrene
1 2-Ter oethan
Tetra oroethane
oroe - (PCE)
,1-Trich oroethane
-Trichloroethane
roethene (TCE)
,2,3-Trichlorobenzene
,2,4-Trichlorobenzene
1,2,3-Trichloropropane
Trichlorofluoromethane
1,2,4-Trimethylbenzene
1,3,5-Trimethylbenzene
Vinyl acetate
Vinyl chloride
m/p-Xylenes
o-Xylene
Additional Compounds
Methyl-tert-butyl ether (MTBE)
Isopropyl ether (IPE)
I hereby certify that I have reviewed and approve these data.
12092140
I2/13/21
VWV
1
12/16/21
< 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 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
< 0.500 ug/L
500 ug/L
Labor.to tative
642 Tamco Road * Reidsville, NC 27320
[phone] Ph * [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#:
WQ0000461 Analysis:
DSI-MW-51 Analyst:
12/07/21 Dilution Factor:
Report Date:
SW-846-8260D VOLATILE ORGANICS - Water
Acetone
Acrylonitrile
Benzene
Bromodichloromethane
Bromochloromethane
Bromoform
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
1,1-Dichloroethane
1,2-Dichloroethane
1,4-Dichlorobenzene
1,2-Dichlorobenzene
1,3-Dichlorobenzene
1,1-Dichloroethene
cis-1,2-Dichloroethene
trans-1,2-Dichloroethene
trans-1,4-Dichloro-2-butene
1,2-Dichloropropane
1,3-Dichloropropane
1,I-Dichloropropene
1,2-Dichloropropene
< O.
< 0.5
< 0.500
< 0.500 u
< 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
< 5.00 ug/L cis-1,3-Dichloropropene
< 5.00 ug/L trans-1,3-Dichloropropene
< 0.500 ug/L Ethanol
< 0.500 ug/L Ethyl benzene
< 0.500 ug/L Hexachlorobutadiene
< 0.500 ug/L 2-Hexanone
< 0.500 ug/L Isopropylbenzene
< 5.00 ug/L p-Isopropyltoluene
< 0.500 ug/L Methylene chlori
< 0.500 ug/L Methly Isobutyl
< 0.500 ug/L Methyl iodide
< 0.500 ug/L Naphthal
< 0.500 ug/L n-Propy
< 0.500 ug/L Styrene
< 0.500 ug/L 1 2-Te ' W oeth
< 0.500 ug/L , , Te . oroethane
< 0.500 ug/L Te w . oroe ' ' e (PCE)
< 0.500 ug/L
< 0.500 ug/L ,1-Tric'1 o oethane
< 0.5 0 ' -Trichloroethane
.roethene (TCE)
1,2,3-Trichl o rob a nzene
1,2,4-Trichlorobenzene
1,2,3-Trichloropropane
Trichlorofluoromethane
1,2,4-Trimethylbenzene
1,3,5-Trimethylbenzene
Vinyl acetate
Vinyl chloride
m/p-Xylenes
o-Xylene
Additional Compounds
Methyl -tent butyl ether (MTBE)
Isopropyl ether (IPE)
I hereby certify that I have reviewed and approve these data.
12092141
12/13/21
VWV
1
12/16/21
< 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 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
< 0.500 ug/L
< 0.500 ug/L
Laboratory Re T ntative
642 Tamco Road * Reidsville, NC 27320
[phone] Ph * [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#:
WQ0000461 Analysis:
DST-MW-71 Analyst:
12/07/21 Dilution Factor:
Report Date:
SW-846-8260D VOLATILE ORGANICS - Water
Acetone
Acrylonitrile
Benzene
Bromodichloromethane
Bromochloromethane
Bromoform
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
1,1-Dichloroethane
1,2-Dichloroethane
1,4-Dichlorobenzene
1,2-Dichlorobenzene
1,3-Dichlorobenzene
1,1-Dichloroethene
cis-1,2-Dichloroethene
trans-1,2-Dichloroethene
trans-1,4-Dichloro-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 ugfL
< 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
< 0.5
< O.
< 0.50
< 0.500
< 0.500 u
< 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
Hexachlorobutadi ene
2-Hexanone
Isopropylbenzene
p-Isopropyltoluene
Methylene chlori
Methly Isobutyl
Methyl iodide
Naphthal
n-Propy
Styrene
1 2-Te ' oeth
oroethane
e (PCE)
,1-Tric 1 o oethane
-Trichloroethane
roethene (TCE)
1,2,3-Trichlorobenzene
1,2,4-Trichlorobenzene
1,2,3-Trichloropropane
Trichlorofluoromethane
1,2,4-Trimethylbenzene
1,3 ,5-Trimethylbenzene
Vinyl acetate
Vinyl chloride
m/p-Xylenes
o-Xylene
Additional Compounds
Methyl-tert-butyl ether (MTBE)
Isopropyl ether (IPE)
I hereby certify that I have reviewed and approve these data.
12092142
12/13/21
VWV
1
12/16/21
< 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 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
< 0.500 ug/L
< 0.500 ug/L
Laboratory
tive
642 Tamco Road * Reidsville, NC 27320
[phone] Ph * [phone] Fax

A
r
Chain of Custody Record (COC)
MERITECH, INC.
ENVIRONMENTAL LABORATORIES
642 Tamco Rd. Phone: [phone]
Reidsville NC 27320 Fax: [phone]
Email: [e-mail]
www.meritechlabs.com
Sample Location and/or ID #
DSI-MW-1
DSI-MW-3
DSI-MW-4
DSI-MW-5
DSI-MW-6
DSI-MW-9
DSI-M W-51
DSI-MW-71
Method of
Shipment:
❑ UPS
▪ Fed Ex
▪ Hand Delivery
❑ Other
Comments:
Sampling Dates & Times
Start
End
Client: Louisiana Pacific Corp,
Address: 1068 ABTCO Rd.
North Wilkesboro, NC 28659
Date
12/7/2021
12/7/2021
12/7/2021
12/7/2021
12/7/2021
12/7/2021
12/7/2021
12/7/2021
Time
11:15
10:50
11:35
12:20
12:00
12:40
12:25
11:50
PersoTaking Sa a (Si
GtNgj
Che
Turn Around Time*
*RUSH work needs prior approval.
Std 10 da s}
3-SDays
24 - 48 Hrs
gn/Print};
)Required
,TDS,NH3,Nt 03,8260(w/HCl)
Date
12/7/2021
12/7/2021
12/7/2021
12/7/2021
12/7/2021
12/7/2021
12/7/2021
12/7
Time
11:30
11:05
11:48
12:35
12:
Attention:_ James Boles Mike Jolly
NPDES#: NC0005266
Phone:_ 336-696-3348
Fax:
Email:_ [e-mail]
Project_ WQ0000461
P.O.#:
How would you like your report sent?
Circle all that apply:(Thmajpreferred), Fax, Mail
Comp? # of
Grab? Cont.
5
5
5
5
*** Dechlorination (<0.5 ppm) of Ammon . anid- enol and TKN samples must be done in the field prior to preservation. ***
Are 7ihese results for regulatory purposes? Yes ❑ No ❑
Relinquished by:
RelinquIR:
Relinquished by
o te//
Time:
/4°2 ,` Time: .4 / I-6r
Date: Time:
to
Lf2.
Lab Use Only
On Ice?
Cc'es / No
pH OK?
CI OK?
Temperature Uponi
Receipt:
Compositor #
Jug #
Report results in: mg/L ❑ mg/kg ug/L ❑
Recell byy,4 {r�/� G. ;- D e: /
�`�j"(�` ate:
Received by:
Received by Lab'
/I IA fit
I1 ,9�afJate:
Time:
:s,
Time:
Time:

Appendix D
Surface Water Analytical Report, April 2021
TRC Environmental Corporation I Louisiana-Pacific Corporation
Comprehensive Site Assessment and Corrective Action Plan
\\EMPLOYEES.ROOT.LOCAL\ENV\AMS\BROOKFIELD\MLW-VOL1\-\ WPMLW\PJT2\390784\O00O\REPORTlR39O7840000-O01.DOCX Draft January 2022

Page 25 of 30
Meritech, Inc.
Environmental Laboratory
Laboratory Certification No. 165
Contact: Mike Jolly &James Boles
Client: Louisiana-Pacific Corp.
1068 ABTCO Rd
North Wilkesboro, NC 28659
Report Date: 4/13/2021
NPDES #: NC0005266
Project: WQ0000461
Date Sample Rcvd: 4/8/2021
Meritech Work Order # 04082134
Parameters Result
Nitrite, Nitrogen 0.98 mg/L
Meritech Work Order # 04082135
Parameters Result
Nitrite. Nitrogen 0.57 mg/L
1 hereby certify that 1 have reviewed and approve these data.
Sample: Up Stream Yadkin Grab
Analysis Date
4/9/21
Sample: Down Stre adkin Grab
Reporting Limit
0.10 mg/L
4/8/21
ng Limit Method
0.10 mg/L EPA 353.2
4/8/21
method
EPA 353.2
Laboratory Representative
642 Tamco Road, Reidsville, North Carolina 27320
tel.[phone] fax[phone]