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HomeMy WebLinkAboutMO-4792_15814_MRP_20230731_LSA CES Group Engineers, LLP IMPROVING. PROTECTING. RESTORING. CHARLOTTE, NC 3525 Whitehall Park Drive, Suite 150 Charlotte, NC 28273 COLUMBIA, SC 1411 Gervais Street, Suite 140 Columbia, SC 29201 www.ces-group.net July 31, 2023 Scott Ryals, PE Environmental Engineer North Carolina Department of Environmental Quality DWM UST Section 1646 Mail Service Center Raleigh, North Carolina 27699-1646 RE: Limited Site Assessment E L Morrison Lumber Co Incident No.: 15814 UST ID No.: MO-4742 Facility ID No.: 00-0-0000004469 267 West Corban Avenue Concord, Cabarrus County, North Carolina 28025 Dear Mr. Ryals: CES Group Engineers, LLP (CES), while under contract with the North Carolina Department of Environmental Quality (NCDEQ), Contract No.: N042023, executed on February 24, 2023, is submitting this Limited Site Assessment to you for the above referenced property, via email transmission. The performed work was authorized by NCDEQ Task Authorization (TA) #01, approved on April 20, 2023. Should you have any questions in regards to this submittal, please do not hesitate to contact me at (704) 325-5408. Regards, Greg Hans, PMP Environmental Division Manager Enclosures: Limited Site Assessment CES Project No. 8143.0423E 1 July 31, 2023 PHASE I LIMITED SITE ASSESSMENT REPORT E L Morrison Lumber Co 267 West Corban Avenue Concord, Cabarrus County, North Carolina 28025 NCDEQ Incident No.: 15814 UST ID No.: MO-4742 Facility ID No.: 00-0-0000004469 July 31, 2023 Prepared for: Mr. Scott Ryals NCDEQ DWM UST Section 1646 Mail Service Center Raleigh, North Carolina 27699-1646 Prepared by: CES Group Engineers, LLP 3525 Whitehall Park Drive, Suite 150 Charlotte, North Carolina 28273 CES Project No. 8143.0423E 2 July 31, 2023 TABLE OF CONTENTS Page 1.0 SITE INFORMATION ................................................................................................. 4 1.1 Site Identification............................................................................................. 4 1.2 Contact Information ......................................................................................... 4 1.3 Release Information ........................................................................................ 4 1.4 Certification ..................................................................................................... 5 2.0 EXECUTIVE SUMMARY ............................................................................................ 6 3.0 SITE HISTORY AND CHARACTERIZATION ............................................................. 8 3.1 Responsible Party Information ........................................................................ 8 3.2 UST Information .............................................................................................. 8 3.3 AST Information .............................................................................................. 9 3.4 Release Description ........................................................................................ 9 3.5 Site Characteristics ......................................................................................... 9 3.6 Prior Actions ................................................................................................. 10 4.0 RISK CHARACTERIZATION .................................................................................... 11 4.1 Part I – Groundwater/Surface Water/Vapor Impacts ..................................... 11 4.2 Part II – Land Use ......................................................................................... 12 5.0 RECEPTOR INFORMATION .................................................................................... 15 5.1 Water Supply Wells ....................................................................................... 15 5.2 Public Water Supplies ................................................................................... 15 5.3 Surface Water ............................................................................................... 15 5.4 Wellhead Protection Areas ............................................................................ 15 5.5 Deep Aquifers in the Coastal Plain Physiographic Region ............................ 15 5.6 Subsurface Structures .................................................................................. 16 6.0 LAND USE ............................................................................................................... 17 6.1 Property Owners and Occupants .................................................................. 17 7.0 SITE GEOLOGY AND HYDROGEOLOGY ............................................................... 18 8.0 SAMPLING RESULTS ............................................................................................. 19 8.1 Phase I Investigation ..................................................................................... 19 9.0 CONCLUSIONS AND RECOMMENDATIONS ......................................................... 21 9.1 Conclusions and Recommendations ................................................................... 21 10.0 REFERENCES ......................................................................................................... 22 CES Project No. 8143.0423E 3 July 31, 2023 FIGURES FIGURE 1 SITE LOCATION MAP FIGURE 2 SITE MAP FIGURE 3 SOIL CONCENTRATION MAP FIGURE 4 POTENTIAL RECEPTOR AND LAND USE MAP TABLES TABLE B-1 SITE HISTORY – UST/AST SYSTEM AND OTHER RELEASE INFORMATION TABLE B-2 SITE HISTORY – UST/AST OWNER/OPERATOR AND OTHER RESPONSIBLE PARTY INFORMATION TABLE B-3 SUMMARY OF SOIL ANALYTICAL RESULTS TABLE B-5 PUBLIC AND PRIVATE WATER SUPPLY WELL AND OTHER RECEPTOR INFORMATION TABLE B-6 CONTIGUOUS PROPERTY OWNERS/OCCUPANTS APPENDICES APPENDIX A HISTORICAL DATA APPENDIX B SITE PHOTOGRAPHS APPENDIX C SAMPLING PROTOCOLS, JOB HAZARD ANALYSIS, AND HEALTH & SAFETY PLAN APPENDIX D SOIL LABORATORY REPORT AND CHAIN-OF-CUSTODY RECORD APPENDIX E SOIL BORING LOGS AND NCDEQ WELL PERMIT CES Project No. 8143.0423E 4 July 31, 2023 1.0 SITE INFORMATION 1.1 Site Identification Date of Report: July 31, 2023 Site Risk/Ranking: Low Facility I.D.:00-0-0000004469 UST Incident Number (if known): MO-4742 / 15814 Site Name: E L Morrison Lumber Co Street Address:267 West Corban Avenue City/Town:Concord Zip Code: 28025 County: Cabarrus Description of Geographical Data Point (e.g., MW):Former Gasoline UST (Abandoned in Place) Location Method (GPS, topographical map, online map, other):GIS Address Matching Latitude (decimal degrees):35.40319 Longitude(decimal degrees): -80.58784 1.2 Contact Information UST/AST Owner: E L Morrison Lumber Co, Inc Email: kmorrison@morrisonbrothers.net Address: 267 West Corban Avenue SW, Concord, NC 28025 Tel: 704-791-9347 UST/AST Operator: E L Morrison Lumber Co, Inc Email: kmorrison@morrisonbrothers.net Address: 267 West Corban Avenue SW, Concord, NC 28025 Tel: 704-791-9347 Property Owner: LongLeaf Holdings, LLC Email: N/A Address: PO Box 145, Concord, NC 28026 Tel: N/A Property Occupant: E L Morrison Lumber Co, Inc Email: kmorrison@morrisonbrothers.net Address: 267 West Corban Avenue SW, Concord, NC 28025 Tel: 707-792-2222 Consultant/Contractor: CES Group Engineers, LLP Email: ghans@ces-group.net Address: 3525 Whitehall Park Drive, Ste 150, Charlotte, NC 28273 Tel: 704-325-5408 Analytical Laboratory: Waypoint Analytical State Certification No: 402 Address: 449 Springbrook Road, Charlotte, NC 28217 Tel: 704-529-6364 Drilling Contractor: Carolina Soil Investigations, LLC Email: keith@csieco.com Address: 132 Gurney Road, Olin, NC 28660 Tel: 704-539-5279 1.3 Release Information Date Discovered: 3/12/1996 (According to NCDEQ UST Incident Maps) Estimated Quantity of Release: Unknown Cause of Release: Unknown Source of Release (e.g., Dispenser/Piping/UST): Gasoline UST Sizes and Contents of Tanks or Other Containment from which the Release Occurred:  One 1,000-gal gasoline UST; One 3,000-gal gasoline UST CES Project No. 8143.0423E 5 July 31, 2023 1.4 Certification I, Charles D. Heleine, a North Carolina Licensed Professional Engineer employed by CES, do certify that the information contained in this report is accurate, to the best of my knowledge. E-Signature 07/28/2023 Charles D. Heleine, NC PE No. 27196 CES Group Engineers, LLP (CES) is licensed to practice engineering in North Carolina. The firm license number is F-1240. CES Project No. 8143.0423E 6 July 31, 2023 2.0 EXECUTIVE SUMMARY The purpose of this Phase I Limited Site Assessment (LSA) is to provide the information necessary for the North Carolina Department of Environmental Quality (NCDEQ) to evaluate the level of risk to human health and the environment resulting from the apparent release of petroleum-related constituents from the historical operation of an underground storage tank (UST or tank) system (removed and/or abandoned in place in March, 1996), located at E L Morrison Lumber Co, 267 West Corban Avenue, Concord, Cabarrus County, North Carolina (hereafter identified as the site, subject site, subject property or property). The site location, including topographic features, is depicted on Figure 1. CES Group Engineers, LLP (CES) has been authorized to perform this LSA by NCDEQ, represented by Scott Ryals, PE, Environmental Engineer. A Phase I LSA of the subject property was initiated by CES to evaluate if soil and/or groundwater has been impacted at the site by the apparent release condition, and if the potential exists for nearby water supply wells and/or other receptors to be impacted. As reported in an UST Closure Report, dated April 26, 1996, prepared by Rowland Environmental Services, Inc (Rowland) of Charlotte, North Carolina, during a soil assessment investigation completed immediately after the abandonment in place of one 1,000-gallon gasoline UST and the removal of one 3,000-gallon gasoline UST from the site in March, 1996, one soil sample (UST- G2-1) collected from the east end wall area of the 1,000-gallon UST (abandoned in place) reported concentrations of total petroleum hydrocarbons (TPH) above applicable state soil standards. No soil samples collected from the 3,000-gallon gasoline UST reported petroleum- related constituents above applicable state soil standards. The 1,000-gallon gasoline UST was located partially underneath the main office building, and therefore, was abandoned in place in March, 1996. During the removal of the 3,000-gallon gasoline UST, it was reported that three cubic yards of soils were excavated and stockpiled onsite from the area of the product line. However, no further information relative to the stockpiled soils were reported in the UST Closure Report, nor are readily available for review. Based on the reported concentration levels of TPH from the area of the abandoned in place 1,000-gallon gasoline UST, NCDEQ subsequently issued Incident Number 15814 for the apparent release condition to E L Morrison Lumber Co in April, 1996. The UST Closure Report, prepared by Rowland, is included in Appendix A. Since the completion of the soil assessment investigation in March, 1996, as summarized in the UST Closure Report, dated April 26, 1996, no further assessment, monitoring and/or remediation activities are known to have taken place at the site. On June 8, 2023, under the direction of CES, attempts to install a groundwater monitoring well in the area of the abandoned in place 1,000-gallon gasoline UST and previous soil sample UST-G2- 1 (collected in March, 1996) were unsuccessful, due to subsurface refusal encountered at depths of approximately 12 and 17-feet below grade. As a result, and after email communications with NCDEQ-Mr. Scott Ryals, PE, Environmental Engineer, a total of two soil samples (SB-1 and SB- 2) were collected from soils located immediately above encountered refusal, at depths of approximately 17-feet below grade (SB-1) and 12-feet below grade (SB-2), placed in laboratory provided vials and glassware, stored on ice, and hand delivered under chain-of-custody (COC) procedures on June 8, 2023 to Waypoint Analytical (Waypoint) of Charlotte, North Carolina (NC Certification No. 402) for laboratory analysis of VOCs by 8260, sVOCs by 8270, Metals (Pb & Cr) and VPH and EPH by MassDEP methodologies. CES Project No. 8143.0423E 7 July 31, 2023 It should be noted that the encountered depths of refusal from SB-1 and SB-2 vary due to an approximate 5-foot surface elevation change from the location of SB-1 in relation to SB-2. Soil laboratory analytical results from SB-1 and SB-2 reported the following petroleum-related constituent concentrations above the Soil to Water Maximum Soil Contaminant Concentration (MSCC), Residential Soil Clean Up Levels and Industrial/Commercial MSCC:  SB-1: chromium (13.5 mg/kg)  SB-2: chromium (11.5 mg/kg) All other concentrations of petroleum-related constituents were reported below Soil to Water MSCC, Residential Soil Cleanup Levels and Industrial/Commercial MSCC from SB-1 and SB-2. Municipal water distribution systems provided by the City of Concord serve the subject property and surrounding properties. Based upon encountered refusal, and subsequent email correspondences with NCDEQ-Mr. Scott Ryals, PE, Environmental Engineer, on June 8, 2023, the subsurface investigation portion of this LSA consisted of installing two soil borings near the east end wall of the abandoned in place 1,000-gallon gasoline UST and previous soil sample UST-G2-1 (collected in March, 1996), with subsequent laboratory analysis. Based on field observations during the advancement of soil borings SB-1 and SB-2 on June 8, 2023, reporting the absence of saturated contaminated soils through visual, olfactory and photoionization detector (PID) readings, with confirmatory laboratory analytical results reporting concentrations below the Soil to Water MSCC, Residential Soil Clean Up Levels and/or Industrial/Commercial MSCC, with the exception of chromium, and with the knowledge that previously reported concentrations of TPH in March, 1996 were reported above applicable state soil standards, it is the opinion of CES that the Site Risk/Ranking is considered to be Low, and a Notice of Residual Petroleum (NRP) can be placed on the property without the collection of groundwater samples, on the reasonable expectation that since saturated contaminated soils were not encountered immediately above rock refusal, the migration of mobile contaminants through fractures within the rock interface to the groundwater table is unlikely. CES Project No. 8143.0423E 8 July 31, 2023 3.0 SITE HISTORY AND CHARACTERIZATION The subject site where this LSA was performed, where an apparent release of petroleum-related constituent occurred, consists of one parcel, identified as Cabarrus County Parcel Identification Number (PIN) 56206582960000, and is situated along the southern line of West Corban Avenue, as shown on Figure 1. The site is in a mixed-use area of Concord, Cabarrus County, North Carolina, with West Corban Avenue to the north, residential and institutional dwellings to the east and south, and Powder Street to the west, and is generally situated in an area of commercial, residential, industrial, manufacturing, and institutional uses. The subject property is currently occupied by E L Morrison Lumber Co, a local lumber company, with a main office building located adjacent to West Corban Avenue, and with numerous structures, lumber storage areas, and accessways occupying the remainder of the property, which is predominantly covered in hard-packed gravel surfaces. This LSA (ie, the installation of two soil borings) was performed near the east end wall of the abandoned in place 1,000-gallon gasoline UST and previous soil sample UST-G2-1 (collected in March, 1996). Figure 2 depicts pertinent site features. 3.1 Responsible Party Information UST Owner/Operator: E L Morrison Lumber Co, Inc Address: 267 West Corban Avenue, Concord, NC 28025 Phone: 704-791-9347 / 704-792-2222 Other Person(s) Associated With USTs: (Site accepted into State-Lead Cleanup Program) Address: N/A Phone: N/A Current Property Owner: LongLeaf Holdings, LLC Address: PO Box 145, Concord, NC 28026 Phone: N/A On March 24, 2023, the site was accepted into the NCDEQ State-Lead Cleanup Program to conduct further investigative measures relative to Incident Number 15814. Additional responsible party information is provided in Table B-1 and Table B-2, and above in Section 1.2. 3.2 UST Information A general summary of the UST system is presented below, with further information included in Tables B-1 and B-2: UST ID No Current/Last Contents Capacity (gallons) Date Installed * Date Removed * Discovery of Release 1 Gasoline 3,000 ~1976 3/12/1996 No 2 Gasoline 1,000 Unknown 3/12/1996 (Abandoned in Place) Yes CES Project No. 8143.0423E 9 July 31, 2023 * UST information retrieved from the UST Closure Report, dated April 26, 1996, and prepared by Rowland. 3.3 AST Information Not Applicable. No ASTs or other above ground vessels or substantial petroleum storage containers were visually ascertained in the area of the former USTs during site visits associated with this LSA. 3.4 Release Description As reported in an UST Closure Report, dated April 26, 1996, prepared by Rowland, during a soil assessment investigation completed immediately after the abandonment in place of one 1,000- gallon gasoline UST and the removal of one 3,000-gallon gasoline UST from the site in March, 1996, one soil sample (UST-G2-1) collected from the east end wall area of the 1,000-gallon UST (abandoned in place) reported concentrations of TPH above applicable state soil standards. No soil samples collected from the 3,000-gallon gasoline UST reported petroleum-related constituents above applicable state soil standards. The 1,000-gallon gasoline UST was located partially underneath the main office building, and therefore, was abandoned in place in March, 1996. During the removal of the 3,000-gallon gasoline UST, it was reported that three cubic yards of soils were excavated and stockpiled onsite from the area of the product line. However, no further information relative to the stockpiled soils were reported in the UST Closure Report, nor are readily available for review. Based on the reported concentration levels of TPH from the area of the abandoned in place 1,000-gallon gasoline UST, NCDEQ subsequently issued Incident Number 15814 for the apparent release condition to E L Morrison Lumber Co in April, 1996. The UST Closure Report, prepared by Rowland, is included in Appendix A. 3.5 Site Characteristics The subject property is zoned in a Light Industrial District (I-1) in the City of Concord, and includes one parcel, with Cabarrus County Parcel Identification Number 56206582960000, occupying an area of approximately 3.76-acres. The adjoining property to the north of the site is West Corban Avenue, with residential dwellings located across the roadway. The adjoining property to the west of the site is Powder Street, with residential dwellings located across the roadway. The adjoining properties to the east and south of the site are residential and institutional dwellings. The subject property is currently occupied by E L Morrison Lumber Co, a local lumber company, with a main office building located adjacent to West Corban Avenue, and with numerous structures, lumber storage areas, and accessways occupying the remainder of the property, which is predominantly covered in hard-packed gravel surfaces. The subject site is situated along the southern line of West Corban Avenue, a 2-lane, asphalt surfaced, urban section roadway, and along the eastern line of Powder Street, a 2-lane, asphalt surfaced, rural section roadway. The subject site is served by commercial utilities, including electrical power, telephone, and natural gas services. Public water distribution and sanitary sewer services provided by the City of Concord serve the site. CES Project No. 8143.0423E 10 July 31, 2023 3.6 Prior Actions According to a review of available reports, prior actions at the site included the advancement of five soil borings in March, 1996, with subsequent soil sampling activities, and with the abandonment in place of one 1,000-gallon gasoline UST and the removal of one 3,000-gallon gasoline UST in March, 1996. As reported in an UST Closure Report, dated April 26, 1996, during the removal of the 3,000- gallon gasoline UST, it was reported that three cubic yards of soils were excavated and stockpiled onsite from the area of the product line. However, no further information relative to the stockpiled soils were reported in the UST Closure Report, nor are readily available for review. Based on a review of historical, and available reports, no other soil and/or groundwater assessment and/or remediation activities relative to the abandoned in place and removed USTs are known to have occurred at the site since March, 1996. CES Project No. 8143.0423E 11 July 31, 2023 4.0 RISK CHARACTERIZATION 4.1 Part I – Groundwater/Surface Water/Vapor Impacts High Risk 1. Has the release contaminated any water supply well including any well used for non- drinking purposes ? NO Not to our knowledge. 2. Is a water supply well used for drinking water located within 1,000 feet of the source area of the release ? NO Municipal water distribution systems are available to serve the subject property and surrounding properties. 3. Is a water supply well not used for drinking water (e.g., irrigation, washing cars, industrial cooling water, filling swimming pools) located within 250 feet of the source area of the release ? NO Not to our knowledge. 4. Does groundwater within 500 feet of the source area of the release have the potential for use (there is no other source of water supply other than the groundwater) ? NO Municipal water distribution systems are available to serve the subject property and surrounding properties. 5. Do vapors from the release pose a threat of explosion because of accumulation of the vapors in a confined space or pose any other serious threat to public health, public safety, or the environment ? NO To date, and to CES’ knowledge, no known incidents of explosion threats have been reported. CES Project No. 8143.0423E 12 July 31, 2023 Intermediate Risk 6. Are there any other factors that would cause the release to pose an imminent danger to public health, public safety, or the environment ? NO 7. Is a surface water body located within 500 feet of the source area of the release ? NO 8. Is the source area of the release located within an approved or planned wellhead protection area as defined in 42 USC 300h-7(e) ? NO 9. Is the release located in the Coastal Plain physiographic region as designated on a map entitled “Geology of North Carolina” published by the Department in 1985 ? NO 10. Do the levels of groundwater contamination for any contaminant exceed the gross contamination levels (See Table 2.) established by the Department ? Unknown Groundwater samples were not collected as part of this LSA, due to encountered subsurface refusal at approximately 12 and 17-feet below grade. 4.2 Part II – Land Use Property Containing Source Area of Release 1. Does the property contain one or more primary or secondary residences (permanent or temporary) ? NO 2. Does the property contain a school, daycare center, hospital, playground, park, recreation area, church, nursing home, or other place of public assembly ? NO 3. Does the property contain a commercial (e.g., retail, warehouse, office/business space etc.) or industrial (e.g., manufacturing, utilities, industrial research and development, chemical/petroleum bulk storage, etc.) enterprise, an inactive commercial or industrial enterprise, or is the land undeveloped ? YES The subject property is currently occupied by E L Morrison Lumber Co, a local lumber company. 4. Do children visit the property ? YES Children have the ability to visit the property Is access to the property reliably restricted consistent with its use (e.g., by fences, security CES Project No. 8143.0423E 13 July 31, 2023 personnel or both) ? YES A secured chain-link fence and gate is locked during non-business hours, restricting access to the interior of the property. 5. Do pavement, buildings, or other structures cap the contaminated soil ? N/A With the exception of chromium, contaminated soils were not encountered during the installation of soil borings SB-1 and SB-2, to a maximum depth of approximately 17-feet below grade. If yes, what mechanisms are in place or can be put into place to ensure that the contaminated soil will remain capped in the foreseeable future ? Not Applicable. However, based on historical site usage, and future planned use (continued use as a lumber company) and the general location of the subject property, located in a mixed-use area, redevelopment of the subject property that involves the removal of hard-packed gravel, and/or potentially asphalt pavement or concrete, without replacement, is unlikely 6. What is the zoning status of the property ? Light Industrial District (I-1) 7. Is the use of the property likely to change in the next 20 years ? NO Property Surrounding Source Area of Release 1. What is the distance from the source area of the release to the nearest primary or secondary residence (permanent or temporary) ? 75 feet to the north 2. What is the distance from the source area of the release to the nearest school, daycare center, hospital, playground, park, recreation area, church, nursing home or other place of public assembly ? 355 feet to the east First Church of God is located approximately 355-feet to the east. 3. What is the zoning status of properties in the surrounding area ? Light Industrial District (I-1) General Industrial District (I-2) General Commercial District (C-2) Residential Compact (RC) Office-Industrial District (O-1) 4. Briefly characterize the use and activities of the land in the surrounding area. The site is generally located in a mixed-use area with commercial, residential, industrial, CES Project No. 8143.0423E 14 July 31, 2023 manufacturing, and institutional uses. The site is bordered to the north by West Corban Avenue, on the east and south by residential and institutional dwellings, and on the west by Powder Street. CES Project No. 8143.0423E 15 July 31, 2023 5.0 RECEPTOR INFORMATION 5.1 Water Supply Wells As part of this LSA, a water supply well survey was conducted by interviewing the owner of the subject property, conducting a walking and windshield survey, and sending out Request for Water Supply Well Information forms to property owners located within a 500-feet radius of the subject property. According to information obtained from the subject property owner, nearby and surrounding property owners, a review of NCDEQ SWAPInfo 2.0 and the City of Concord and Cabarrus County GIS systems, no water supply wells are known to exist within a 1,500-feet radius, as municipal water distribution systems serve the subject property and surrounding properties. On May 10, 2023, CES sent out Appendix A - Request for Water Supply Well Information forms to 58 properties within a 500-feet radius of the subject property. A total of 9 Water Supply Well Information forms were returned to CES, or information was otherwise communicated to CES, which did not report the presence of water supply wells within a 500-feet radius of the site. Table B-5 summarizes public and private water supply well information. 5.2 Public Water Supplies According to the NC SWAPInfo 2.0 Map and NC One Map - Public Water Supply Water Resources Map, no public water supply wells are known to exist within a 1,500-feet radius of the subject property. Municipal water distribution systems provided by the City of Concord are available to serve the subject property and surrounding properties. 5.3 Surface Water According to the NC One Map – Surface Water Classifications Map, Irish Buffalo Creek is located approximately 1,550-feet to the west-southwest of the site. According to the NC One Map – Surface Water Intakes Map, no surface water intakes are located within a 1,500-foot radius of the subject site. 5.4 Wellhead Protection Areas According to the NC SWAP website and database of approved North Carolina Wellhead Protection Areas, no wellhead protection areas and/or approved wellhead protection plans are known to exist in Cabarrus County. 5.5 Deep Aquifers in the Coastal Plain Physiographic Region Not Applicable to the subject site, as the site lies within the Piedmont Physiographic Region. CES Project No. 8143.0423E 16 July 31, 2023 5.6 Subsurface Structures Underground utilities have been identified at and adjacent to the subject site, and the potential exists for soil and/or groundwater contamination to be in contact with these underground utilities. Depth to groundwater is currently unknown at the site and surrounding properties. Since groundwater was not encountered at the maximum depth of soil borings (approximately 17-feet below grade), and since underground utilities are expected to be at a shallower depth than 17- feet, the utility lines would not be considered receptors or conduits for ground water contaminant migration. No subsurface structures have been identified at the site. Figure 4 depicts a 1,500-feet Potential Receptor Map. CES Project No. 8143.0423E 17 July 31, 2023 6.0 LAND USE 6.1 Property Owners and Occupants Land use in the vicinity of the subject property can be characterized as commercial, residential, industrial, manufacturing, and institutional uses. Based on petroleum-related constituents in soil primarily reported below laboratory detection limits and below applicable state soil standards, except for chromium, and with the reasonable expectation that groundwater has not been impacted at the site, nearby and surrounding property owners and occupants are not expected to be impacted by the apparent release from Incident Number 15814. Table B-6 summarizes contiguous property owners and occupants. No sensitive land use features, such as schools, daycare centers, nursing homes, hospitals, playgrounds, churches, camps, or other places of assembly, have been identified within 1,500 feet of the source of the release, except for First Church of God, located approximately 355-feet to the east, Zion Hill AME Church located approximately 520-feet to the southeast and Breakthrough Ministries Church of God located approximately 1,055-feet to the northwest of the site. Aerial imagery depicting land use in the general vicinity of the site is included on Figure 4. CES Project No. 8143.0423E 18 July 31, 2023 7.0 SITE GEOLOGY AND HYDROGEOLOGY According to the Geological Map of North Carolina (1985), the subject site is located within the Piedmont Physiographic Province, is underlain by intrusive rocks of the Charlotte and Milton Belts, and is within a metamorphosed quartz diorite formation. A description of the underlaying Rock Unit PrZg is metamorphosed gabbro and diorite; foliated to massive. According to the US Department of Agriculture, Natural Resources Conservation Service, Web Soil Survey, soils at the subject property consist of Enon-Urban Land complex, which generally have a 2 to 10 percent slope, and are classified as fine sandy loam (0 to 7-inches), sandy clay loam (7 to 10-inches), clay (10 to 27-inches), clay loam (27 to 33-inches) and loam (33 to 80- inches. Parent materials were classified as Saprolite derived from diorite and/or gabbro and/or diabase and/or gneiss. Encountered soils from soil borings SB-1 and SB-2 were generally classified as a grey fine silty sand. According to a review of applicable USGS topographic mapping for the subject property and onsite observations, it has been determined that natural surface drainage in the vicinity of the subject site is generally in a southerly direction. While not always the case, groundwater flow direction typically follows the direction of surface water flow, and is, therefore, anticipated to flow southerly. Man-made improvements may alter natural local drainage patterns to some degree. The data obtained and reported herein is representative of conditions only at the referenced boring locations, and is not necessarily indicative of conditions elsewhere on the subject property. CES Project No. 8143.0423E 19 July 31, 2023 8.0 SAMPLING RESULTS 8.1 Phase I Investigation On June 8, 2023, under the direction of CES, attempts to install a groundwater monitoring well in the area of the abandoned in place 1,000-gallon gasoline UST and previous soil sample UST-G2- 1 (collected in March, 1996) were unsuccessful, due to subsurface refusal encountered at depths of approximately 12 and 17-feet below grade. As a result, and after email communications with NCDEQ-Mr. Scott Ryals, PE, Environmental Engineer, on June 8, 2023, the subsurface investigation portion of this LSA was modified to collect soil samples from soils located immediately above encountered refusal, at depths of approximately 17-feet below grade (SB-1) and approximately 12-feet below grade (SB-2). It should be noted that the encountered depths of refusal from SB-1 and SB-2 vary due to an approximate 5-foot surface elevation change from the location of SB-1 in relation to SB-2. Soil borings (SB-1 and SB-2) were installed by a sub- contracted driller, Carolina Soil Investigations, LLC of Olin, North Carolina, via augering techniques, utilizing a track-mounted geoprobe rig, Model 6712DT. Prior to arriving onsite on June 8, 2023, Monitoring Well Construction Permit Number WM0301283 was obtained from the Water Quality Regional Operations Section of the NCDEQ Division of Water Resources for the planned installation of one proposed groundwater monitoring well. During the advancement of the two soil borings, subsurface soils were primarily classified as grey fine silty sand, from grade to approximately 17-feet below grade, when refusal was encountered. Encountered soils from immediately above the rock interface did not exhibit visual or olfactory signs of contamination, were observed to be dry, and were not observed to be stained or saturated with petroleum impacts. Figure 2, Site Plan, depicts the location of soil borings SB-1 and SB-2. Soil boring logs for SB-1 and SB-2 are included in Appendix E. The NCDEQ Monitoring Well Construction Permit is included in Appendix E. During the advancement of the soil borings, the CES Environmental Scientist field screened encountered soils with a MiniRAE 2000 PID for the presence of VOCs, reported in parts per million per volume (ppmv). PID measurements were recorded at non-detect (ie ND, or 0.0) levels from SB-1 and SB-2. Based on encountered subsurface refusal at approximately 17-feet below grade (SB-1) and 12-feet below grade (SB-2), soil samples were collected from immediately above the rock interface, at depths of approximately 17 and 12-feet below grade, respectively, placed in laboratory provided vials and glassware, stored on ice, and hand delivered under COC procedures on June 8, 2023, to Waypoint for laboratory analysis of the following:  VOCs by 8260 + MTBE/IPE  sVOCS by 8270 BNA  MassDEP VPH  MassDEP EPH  Metals: Pb + Cr Soil laboratory analytical results from SB-1 and SB-2 reported the following petroleum-related constituent concentrations above the Soil to Water MSCC, Residential Soil Clean Up Levels and Industrial/Commercial MSCC: CES Project No. 8143.0423E 20 July 31, 2023  SB-1: chromium (13.5 mg/kg)  SB-2: chromium (11.5 mg/kg) All other concentrations of petroleum-related constituents were reported below Soil to Water MSCC, Residential Soil Cleanup Levels and Industrial/Commercial MSCC from SB-1 and SB-2. A photographic log depicting the site and soil boring locations, is included in Appendix B. Figure 3 depicts a Soil Concentration and Estimated Extent of Contamination Map. Table B-3 summarizes soil laboratory analytical results. Soil laboratory analytical reports are included in Appendix D. Groundwater was not encountered during the installation of SB-1 and SB-2, installed to a maximum depth of approximately 17-feet below grade, and therefore, depth to groundwater at the site is unknown. CES’ standard operating procedures for soil and groundwater investigations, and the prepared and reviewed Job Hazard Analysis (JHA) and Emergency Management and Health & Safety Plan (HASP) are included in Appendix C. CES Project No. 8143.0423E 21 July 31, 2023 9.0 CONCLUSIONS AND RECOMMENDATIONS 9.1 Conclusions and Recommendations Conclusions: A Phase I LSA of the subject property was initiated by CES to evaluate if soil and groundwater has been impacted at the site by the apparent release condition from the historical operation of the UST system (removed and/or abandoned in place in March, 1996), and if the potential exists for nearby water supply wells and/or other receptors to be impacted. Subsequent findings indicated that subsurface refusal was encountered at depths of approximately 12 to 17-feet below grade during attempts to install one groundwater monitoring well in the area of the abandoned in place 1,000-gallon gasoline UST and previous soil sample UST-G2-1 (collected in March, 1996). Therefore, the subsurface investigation portion of this LSA was modified to collect soil samples from two soil borings installed immediately above the rock interface for laboratory analysis. Soil laboratory analytical results from SB-1 and SB-2 reported the following petroleum-related constituent concentrations above the Soil to Water MSCC, Residential Soil Clean Up Levels and Industrial/Commercial MSCC:  SB-1: chromium (13.5 mg/kg)  SB-2: chromium (11.5 mg/kg) The findings of the receptor survey indicated that no water supply wells and/or other receptors have been identified within a 1,500-feet radius of the site. Recommendations: Based on field observations during the advancement of soil borings SB-1 and SB-2 on June 8, 2023, reporting the absence of saturated contaminated soils through visual, olfactory and PID readings, with confirmatory laboratory analytical results reporting concentrations below the Soil to Water MSCC, Residential Soil Clean Up Levels and/or Industrial/Commercial MSCC, with the exception of chromium, and with the knowledge that previously reported concentrations of TPH in March, 1996 were reported above applicable state soil standards, it is the opinion of CES that the Site Risk/Ranking is considered to be Low, and a Notice of Residual Petroleum (NRP) can be placed on the property without the collection of groundwater samples, on the reasonable expectation that since saturated contaminated soils were not encountered immediately above rock refusal, the migration of mobile contaminants through fractures within the rock interface to the groundwater table is unlikely. CES Project No. 8143.0423E 22 July 31, 2023 10.0 REFERENCES Rowland Environmental Services, Inc, of Charlotte, North Carolina. UST Closure Report, dated April 26, 1996. FIGURES ^_ SITE LOCATION Figure 1Site Location MapE L Morrison Lumber Co267 Corban Avenue SWConcord, Cabarrus County, North CarolinaDrawn on: 4/26/2023 Drawn by: Amy Schmidt 3525 Whitehall Park DriveSuite 150Charlotte, North Carolina 28273T: 704-489-1500www.ces-group.net³ 0 2,000 4,000 00,06 8,0001,000 FEET REFERENCE:USGS The National Map: National Boundaries Dataset, 3DEP Elevation Program, Geographic Names Information System,National Hydrography Dataset, National Land Cover Database, National Structures Dataset, and National TransportationDataset; USGS Global Ecosystems; U.S. Census Bureau TIGER/Line data; USFS Road Data; Natural Earth Data; U.S.Department of State Humanitarian Information Unit; and NOAA National Centers for Environmental Information, U.S.Coastal Relief Model. Data refreshed June, 2022. Reviewed by: Greg Hans CES Project No. 8143.0423E DRAWN BY: BN CHECKED BY: GH PROJECT NUMBER: 8143.0423E DRAWING TITLE: SHEET NUMBER: SEAL:PROJECT DESCRIPTION:Site PlanCES GROUP ENGINEERS, LLP NC FIRM LICENSE #F-1240 3525 WHITEHALL PARK DRIVESUITE 150CHARLOTTE, NC 28273T 704. 489.1500 www.ces-group.net DATE: 07/31/2023 SCALE : 1" = 20' DRAWN BY: BN CHECKED BY: GH PROJECT NUMBER: 8143.0423E DRAWING TITLE: SHEET NUMBER: SEAL:PROJECT DESCRIPTION:Soil Concentration MapCES GROUP ENGINEERS, LLP NC FIRM LICENSE #F-1240 3525 WHITEHALL PARK DRIVESUITE 150CHARLOTTE, NC 28273T 704. 489.1500 www.ces-group.net DATE: 07/31/2023 SCALE : 1" = 20' TABLES Table B-1: Site History – UST/AST System and Other Release Information Revision Date: 07/14/2023 Incident Number and Name: 15814; E L Morrison Lumber Co UST ID#: MO-4742 No Description of Associated Piping and Pumps Was release associated with the UST System? Status of USTDate Tank Installed Steel 1976 Permanent Closure / Removed 3/12/1996 UST ID Number Gasoline 3,000 Steel 18' x 64"1 Unknown Tank Dimensions (diameter x length) Construction Details Capacity (in gallons) Previous Contents Current/Last Contents 2 Gasoline Unknown 1,000 Steel 12' x 46" Steel Unknown Permanent Closure / Abandoned in Place 3/12/1996 Yes Page 1 of 2 Table B-1: Site History – UST/AST System and Other Release Information Revision Date: 07/14/2023 Incident Number and Name: 15814; E L Morrison Lumber Co UST ID#: MO-4742 Incident Number Material Released Date of Release 15814 Petroleum 3/12/1996 Description of Associated Piping and Pumps Was release associated with the AST System? Date Tank Installed AST ID Number Current/Last Contents * Previous Contents * Capacity (in gallons) Construction Details **Tank Dimensions Status of AST *** Description of Release Soil contamination from samples collected near the end wall of an abandoned in place 1,000-gallon gasoline Page 2 of 2 Table B-2: Site History - UST/AST Owner/Operator and Other Responsible Party Information Revision Date: 07/14/2023 Incident Number and Name: 15814; E L Morrison Lumber Co UST ID#: MO-4742 2 State Zip NC 28025 State Zip NC 28025 State Zip Street Address E L Morrison Lumber Co Tank 1 (~1976 to 1993); Tank 2 (Unknown to ~1976) UST ID Number 1 Facility ID Number Name of Owner Dates of Operation (mm/dd/yy to mm/dd/yy) 00-0-0000004469 City Telephone Number Concord 704-792-2222 267 West Corban Avenue Name of Other Responsible Party Dates of Release(s) (mm/dd/yy to mm/dd/yy) Street Address City Telephone Number Concord 704-792-2222 Incident Number 15814 Street Address 267 West Corban Avenue City Telephone Number Name of Operator Dates of Operation (mm/dd/yy to mm/dd/yy) E L Morrison Lumber Co Tank 1 (~1976 to 1993); Tank 2 (Unknown to ~1976) Page 1 of 1 Table B-3: Summary of Soil Analytical Results Revision Date: 07/14/2023 Incident Number and Name: 15814; E L Morrison Lumber Co UST ID#: MO-4742 6010D 6010D 8260D 8260D 8260D 8260D 8260D 8260D 8260D 8260D 8260D 8260D 8260D 8260D 8260D 8270E 8270E MADEP- EPH MADEP- EPH MADEP- VPH MADEP- VPH MADEP- VPH Sample ID Date Collected (m/dd/yy) Source Area (eg. Tank Grave) Sample Depth (feet BGS) PID (ppmv) SB-1 6/8/23 Abandoned in Place 1,000-gallon gasoline UST 8' 0.0 13.5 1.06 0.003 J <0.0006 0.001 J <0.0006 0.001 JB <0.0007 0.001 JB <0.0006 <0.001 <0.0007 <0.0005 <0.0006 <0.0005 <0.110 <0.103 <9.62 <12.8 <1.37 <5.14 <0.703 SB-2 6/8/23 Downgradient of Abandoned in Place 1,000-gallon gasoline UST 12' 0.0 11.5 0.742 0.003 J <0.0006 0.001 J <0.0006 0.002 J 0.003 J 0.002 JB <0.0007 <0.001 <0.0007 <0.0005 <0.0006 <0.0005 <0.112 <0.106 <9.78 <13.0 <1.42 <5.34 <0.732 3.8 270 24 0.0072 3.7 8 N/A 16 0.023 0.085 0.2 5.4 6.6 6.6 6 0.054 1.5 540 NA 68 540 31 1.32 400 14000 12 1560 60.3 N/A 9380 93.8 156 5.5 1250 156 156 3120 22.8 62.5 1560 31200 625 1500 469 6.54 400 210000 59.4 23300 297 N/A 140000 1400 1810 27 18600 2330 2330 46700 112 934 23300 467000 9340 40000 12264 Feet BGS = feet below ground surface mg/kg =milligrams per kilogram ppmv: parts per million per volume as detected by MiniRAE2000 photoionization detector (PID) BDL = Below Laboratory Detection Limit NA = Not applicable Highlighted Yellow / Bold = Values exceeding the Soil-to-Water Soil Standard Highlighted Green / Bold = Values exceeding the Residential Soil Cleanup Standard Highlighted Red / Bold = Values exceeding Soil-to-Water, Residential and Industrial/Commercial Standards Laboratory analysis performed by Waypoint Analytical, Inc of Charlotte, NC (NC Certification No. 402) Concentrations compared to Table - 1, Rev 10/5/2021, Comprehensive Tables for Corrective Action Guidelines (September 7, 2022 Version, Change 5) Soil-to-Water Maximum Contaminant Concentration (mg/kg) Residential Soil Cleanup Levels (mg/kg)BenzeneIndustrial/Commercial MSCC (mg/kg)C19-C36 AliphaticToluene1,2,4-Trimethylbenzene1,3,5-TrimethylbenzeneXylenes1-Methylnaphthalene2-MethylnaphthaleneC9-C10 AromaticsAnalytical Method (e.g., VOCs by 8260D)  Contaminant of Concern (mg/kg) ChromiumLeadC5-C8 AliphaticCarbon DisulfideEthylbenzenen-HexaneMTBENaphthaleneC9-C18 AliphaticAcetoneC9-C12 AliphaticMethylene ChlorideMethyl Ethyl Ketone (MEK) Table B-5: Public and Private Water Supply Well and Other Receptor Information Revision Date: 07/14/2023 Incident Number and Name: 15814; E L Morrison Lumber Co UST ID#: MO-4742 Water Supply Well and Other Receptor Information Additional Information for Water Supply Wells (and Other Receptors, if applicable) Well # / ID (same as above) Public Water: Connected / Available / Not Available Well Currently Used for: Active / Inactive / Abandoned Construction Method and Well Type Total Depth (ft BGS) Screened Interval (x to y ft BGS) ft BGS = Feet below ground surface * Ex: WSW = Water Supply Well, SWB = Surface Water Body, Resvr = Reservoir, PWS = Public Water Supply, PW = Public Well, SW = Supply Well, WPA = Wellhead Protection Areas, RA = Recharge Areas (for deep aquifers), Sub = Subsurface Structures, Con = Conduits, Other: ** The location and/or latitude/longitude (IN DECIMAL DEGREES) must be sufficiently accurate and precise to allow easy location of wells (or recovery if buried/paved/covered-over, lost, or otherwise damaged) and for the location / replication of sampling points for any other receptor. Coordinates of Well # 3-11 are estimated based on physical location of onsite structure *** Status: A = Active or IA = Inactive *and* Use: P = Potable or NP = Non-Potable Use. (Describe further in Additional Information for Water Supply Wells table below.) Private / Public / Semi-Public No water supply wells are known to exist within close proximity to the site Casing Depth (ft BGS) Up or Downgradie nt (if known) No water supply wells are known to exist within close proximity to the site Street Address for Receptor Receptor Description and Location Details ** Latitude/ Longitude ** (decimal degrees) Source Status & Use *** Distance from Source (ft) Well # Type * Contact Name Owner/User/Both Contact Phone # Page 1 of 1 Table B-6: Contiguous Property Owners/Occupant Revision Date: 07/14/2023 Incident No: 15814; Name: E L Morrison Lumber Co UST ID#: MO-4742 Tax Parcel Number / Map ID Owner / Occupant Name Address (Physical) Address (Mailing) 56206582960000 (subject property) Longleaf Holdings, LLC / E L Morrison Lumber Co 267 Corban Avenue, SW, Concord, NC 28025 PO Box 145, Concord, NC 28026 56207505740000 (adjoining property to the east) City of Concord / Undeveloped, Wooded Lot 243 Corban Avenue, SW, Concord, NC 28025 PO Box 308, Concord, NC 28026 56207514180000 (adjoining property to the east) Golden Capstone Investments, Inc / Residential 58 Skipwith Street, SW, Concord, NC 28025 4604 Sarandon Court, Charlotte, NC 28215 56207514430000 (adjoining property to the east) Ameial G Wardlaw / Residential 62 Skipwith Street, SW, Concord, NC 28025 62 Skipwith Street, SW, Concord, NC 28025 56207513880000 (adjoining property to the east) Emmanual Dormetis / Residential 68 Skipwith Street, SW, Concord, NC 28025 9508 Melanie Thompson Drive, Charlotte, NC 28213 56207523320000 (adjoining property to the east) Paul Alan and Mary Catherine Coutinho / Residential 72 Skipwith Street, SW, Concord, NC 28025 10419 Olde Ivy Way, Charlotte, NC 28262 56207522300000 (adjoining property to the east- southeast) Hill A Zion M Church Trust / Church 76 Skipwith Street, SW, Concord, NC 28025 PO Box 1076, Concord, NC 28026 56207511530000 (adjoining property to the south) Armando Bautista Ruiz / Residential 268 Young Avenue, SW, Concord, NC 28025 268 Young Avenue, SW, Concord, NC 28025 56207501900000 (adjoining property to the south) Jose Manual Figueroa and Erika Nallely Reyes / Residential 272 Young Avenue, SW, Concord, NC 28025 272 Young Avenue, SW, Concord, NC 28025 56207500810000 (adjoining property to the south) Robert Lee Grier / Residential 274 Young Avenue, SW, Concord, NC 28025 274 Young Avenue, SW, Concord, NC 28025 56207409280000 (adjoining property to the south) Bill Ray Misenheimer / Residential 280 Young Avenue, SW, Concord, NC 28025 280 Young Avenue, SW, Concord, NC 28025 56206580810000 (adjoining property to the west) Catherine Ann Carr / Residential 67 Powder Street, SW, Concord, NC 28025 67 Powder Street, SW, Concord, NC 28025 56206580440000 (adjoining property to the west) Learia Jade Sheperd-Hicks / Residential 65 Powder Street, SW, Concord, NC 28025 65 Powder Street, SW, Concord, NC 28025 APPENDIX A HISTORICAL DATA APPENDIX B SITE PHOTOGRAPHS InstallaƟon of SB-1 located adjacent to Abandoned in Place 1,000-gallon gasoline UST InstallaƟon of SB-1 located adjacent to Abandoned in Place 1,000-gallon gasoline UST InstallaƟon of SB-2 located immediately downgradient of Abandoned in Place 1,000-gallon gasoline UST InstallaƟon of SB-2 located immediately downgradient of Abandoned in Place 1,000-gallon gasoline UST APPENDIX C SAMPLING PROTOCOLS, JOB HAZARD ANALYSIS, AND HEALTH & SAFETY PLAN APPENDIX D SOIL AND GROUNDWATER WELL LABORATORY REPORTS AND CHAIN- OF-CUSTODY RECORDS   Laboratory's liability in any claim relating to analyses performed shall be limited to, at laboratory's option, repeating the analysis in question at laboratory's expense, or the refund of the charges paid for performance of said analysis.   6/16/2023 CES Group Greg Hans 3525 Whitehall Park Dr. Suite 150 Charlotte, NC, 28273 Ref: Analytical Testing Lab Report Number: 23-159-0034 Client Project Description: EL Morrison Lumber Co Dear Greg Hans: Waypoint Analytical, LLC (Charlotte) received sample(s) on 6/8/2023 for the analyses presented in the following report. The above referenced project has been analyzed per your instructions. The analyses were performed in accordance with the applicable analytical method. The analytical data has been validated using standard quality control measures performed as required by the analytical method. Quality Assurance, method validations, instrumentation maintenance and calibration for all parameters were performed in accordance with guidelines established by the USEPA (including 40 CFR 136 Method Update Rule May 2021) unless otherwise indicated. Certain parameters (chlorine, pH, dissolved oxygen, sulfite...) are required to be analyzed within 15 minutes of sampling. Usually, but not always, any field parameter analyzed at the laboratory is outside of this holding time. Refer to sample analysis time for confirmation of holding time compliance. The results are shown on the attached Report of Analysis(s). Results for solid matrices are reported on an as-received basis unless otherwise indicated. This report shall not be reproduced except in full and relates only to the samples included in this report. Please do not hesitate to contact me or client services if you have any questions or need additional information. Sincerely, Angela D Overcash Senior Project Manager Page 1 of 62 Certification Summary Laboratory ID: WP CNC: Waypoint Analytical Carolina, Inc. (C), Charlotte, NC State Program Lab ID Expiration Date 07/31/202337735State ProgramNorth Carolina 12/31/2023402State ProgramNorth Carolina 07/31/202399012State ProgramSouth Carolina 12/31/202299012State ProgramSouth Carolina Page 1 of 1 00016/23-159-0034 Page 2 of 62 Report Number: Sample Summary Table Client Project Description: 23-159-0034 EL Morrison Lumber Co Lab No Client Sample ID Matrix Date Collected Date Received 06/08/2023 09:30Solids 97895 SB-1 06/08/2023 14:58 06/08/2023 10:10Solids 97896 SB-2 06/08/2023 14:58 Page 3 of 62 Summary of Detected Analytes QualifiersAnalyzedUnitsResult Report Number: Client Sample ID Method Parameters Lab Sample ID 23-159-0034 Report Limit Project:EL Morrison Lumber Co V 97895SB-1 13.5 06/12/2023 12:436010DChromiummg/Kg - dry 0.176 1.06 06/09/2023 17:136010DLeadmg/Kg - dry 0.082 J0.003 06/12/2023 11:298260DAcetonemg/Kg - dry 0.002 J0.001 06/12/2023 11:298260DCarbon Disulfide mg/Kg - dry 0.0007 JB0.001 06/12/2023 11:298260Dn-Hexane mg/Kg - dry 0.0007 JB0.001 06/12/2023 11:298260DMethylene Chloride mg/Kg - dry 0.001 3.77 06/09/2023 11:30SW-DRYWT Moisture % V 97896SB-2 11.5 06/12/2023 12:486010DChromiummg/Kg - dry 0.180 0.742 06/09/2023 17:186010DLeadmg/Kg - dry 0.083 J0.003 06/09/2023 14:418260DAcetonemg/Kg - dry 0.002 J0.001 06/09/2023 14:418260DCarbon Disulfide mg/Kg - dry 0.0007 J0.002 06/09/2023 14:418260Dn-Hexane mg/Kg - dry 0.0007 J0.003 06/09/2023 14:418260DMethyl Ethyl Ketone (MEK)mg/Kg - dry 0.0007 JB0.002 06/09/2023 14:418260DMethylene Chloride mg/Kg - dry 0.001 5.89 06/09/2023 11:30SW-DRYWT Moisture % Page 4 of 62   Client: CES Group CASE NARRATIVE Project: EL Morrison Lumber Co Lab Report Number: 23-159-0034 Date: 6/16/2023 Metals Analysis Method 6010D Sample 97915 (ST-SS-1) QC Batch No: V34244/V34145 The sample was diluted due to the nature of the sample matrix. Reporting limits have been adjusted accordingly. Sample 97915 (ST-SS-1) Analyte: Lead QC Batch No: V34244/V34145 The matrix spike and/or the matrix spike duplicate was outside quality control acceptance ranges. A dilution test was performed and passed quality control acceptance ranges. No matrix interference is suspected. Volatile Organic Compounds - GC/MS Method 8260D Sample 97915 (ST-SS-1) Analyte: 1,2,3-Trichlorobenzene QC Batch No: V34217/V34216 Matrix spike/matrix spike duplicate recoveries are outside of control limits. Acceptable LCS recovery indicates the system was in control, but the reported result could be affected by matrix interference. Sample 97915 (ST-SS-1) Analyte: 1,2,4-Trichlorobenzene QC Batch No: V34217/V34216 Matrix spike/matrix spike duplicate recoveries are outside of control limits. Acceptable LCS recovery indicates the system was in control, but the reported result could be affected by matrix interference. Sample 97915 (ST-SS-1) Analyte: 1,2-Dichlorobenzene QC Batch No: V34217/V34216 Matrix spike/matrix spike duplicate recoveries are outside of control limits. Acceptable LCS recovery indicates the system was in control, but the reported result could be affected by matrix interference. Sample 97915 (ST-SS-1) Analyte: 1,3-Dichlorobenzene QC Batch No: V34217/V34216 Matrix spike/matrix spike duplicate recoveries are outside of control limits. Acceptable LCS recovery indicates the system was in control, but the reported result could be affected by matrix interference. Sample 97915 (ST-SS-1) Analyte: 1,4-Dichlorobenzene QC Batch No: V34217/V34216 Matrix spike/matrix spike duplicate recoveries are outside of control limits. Acceptable LCS recovery indicates the system was in control, but the reported result could be affected by matrix interference. Sample 97915 (ST-SS-1) Analyte: Acrolein QC Batch No: V34217/V34216 Page 5 of 62   Matrix spike/matrix spike duplicate recoveries are outside of control limits. Acceptable LCS recovery indicates the system was in control, but the reported result could be affected by matrix interference. Sample 97915 (ST-SS-1) Analyte: Chlorobenzene QC Batch No: V34217/V34216 Refer to LCS/LCSD. Sample 97915 (ST-SS-1) Analyte: Chloromethane QC Batch No: V34217/V34216 Relative Percent Difference (RPD) for the duplicate analysis was outside of the allowable QC limits. Sample 97915 (ST-SS-1) Analyte: Hexachlorobutadiene QC Batch No: V34217/V34216 Matrix spike/matrix spike duplicate recoveries are outside of control limits. Acceptable LCS recovery indicates the system was in control, but the reported result could be affected by matrix interference. Sample 97915 (ST-SS-1) Analyte: Hexane QC Batch No: V34217/V34216 Refer to LCS/LCSD. Sample 97915 (ST-SS-1) Analyte: Methylene chloride QC Batch No: V34217/V34216 Relative Percent Difference (RPD) for the duplicate analysis was outside of the allowable QC limits. Sample 97915 (ST-SS-1) Analyte: Naphthalene QC Batch No: V34217/V34216 Matrix spike/matrix spike duplicate recoveries are outside of control limits. Acceptable LCS recovery indicates the system was in control, but the reported result could be affected by matrix interference. Sample 97915 (ST-SS-1) Analyte: Vinyl acetate QC Batch No: V34217/V34216 Refer to LCS/LCSD. Semivolatile Organic Compounds - GC/MS Method 8270E Analyte: 2,4-Dinitrophenol QC Batch No: V34353/V34156 Matrix spike/matrix spike duplicate recoveries are outside of control limits. Acceptable LCS recovery indicates the system was in control, but the reported result could be affected by matrix interference. Analyte: 2,4-Dinitrotoluene QC Batch No: V34353/V34156 Relative Percent Difference (RPD) for the duplicate analysis was outside of the allowable QC limits. Analyte: 2,4-Dinitrotoluene QC Batch No: V34353/V34156 Page 6 of 62   Matrix spike/matrix spike duplicate recoveries are outside of control limits. Acceptable LCS recovery indicates the system was in control, but the reported result could be affected by matrix interference. Analyte: 2,6-Dinitrotoluene QC Batch No: V34353/V34156 Relative Percent Difference (RPD) for the duplicate analysis was outside of the allowable QC limits. Analyte: 2,6-Dinitrotoluene QC Batch No: V34353/V34156 Matrix spike/matrix spike duplicate recoveries are outside of control limits. Acceptable LCS recovery indicates the system was in control, but the reported result could be affected by matrix interference. Analyte: 2-Nitrophenol QC Batch No: V34353/V34156 Matrix spike/matrix spike duplicate recoveries are outside of control limits. Acceptable LCS recovery indicates the system was in control, but the reported result could be affected by matrix interference. Analyte: 3-Nitroaniline QC Batch No: V34353/V34156 Relative Percent Difference (RPD) for the duplicate analysis was outside of the allowable QC limits. Analyte: 4,6-Dinitro-2-methylphenol QC Batch No: V34353/V34156 Relative Percent Difference (RPD) for the duplicate analysis was outside of the allowable QC limits. Analyte: 4,6-Dinitro-2-methylphenol QC Batch No: V34353/V34156 Matrix spike/matrix spike duplicate recoveries are outside of control limits. Acceptable LCS recovery indicates the system was in control, but the reported result could be affected by matrix interference. Analyte: 4-Nitroaniline QC Batch No: V34353/V34156 Matrix spike/matrix spike duplicate recoveries are outside of control limits. Acceptable LCS recovery indicates the system was in control, but the reported result could be affected by matrix interference. Analyte: Benzoic Acid QC Batch No: V34186/V34156 Relative Percent Difference (RPD) for the duplicate analysis was outside of the allowable QC limits. Analyte: Hexachlorocyclopentadiene QC Batch No: V34353/V34156 Matrix spike/matrix spike duplicate recoveries are outside of control limits. Acceptable LCS recovery indicates the system was in control, but the reported result could be affected by matrix interference. Analyte: Nitrobenzene QC Batch No: V34353/V34156 Matrix spike/matrix spike duplicate recoveries are outside of control limits. Acceptable LCS recovery indicates the system was in control, but the reported result could be affected by matrix interference. Analyte: Nitrobenzene QC Batch No: V34353/V34156 Relative Percent Difference (RPD) for the duplicate analysis was outside of the allowable QC limits. Page 7 of 62   Sample 97822 (SB-1) Analyte: 2-Nitroaniline QC Batch No: V34353/V34327 Relative Percent Difference (RPD) for the duplicate analysis was outside of the allowable QC limits. Sample 97822 (SB-1) Analyte: Nitrobenzene-d5 QC Batch No: V34353/V34327 Surrogate(s) was flagged for low recovery in this project sample. This sample will be re-analyzed for verification. Surrogate Nitrobenzene-d5 was low in the original and the reprep. Second run reported. Sample 97896 (SB-2) Analyte: Nitrobenzene-d5 QC Batch No: V34353/V34327 Surrogate(s) was flagged for low recovery in this project sample. This sample will be re-analyzed for verification. Surrogate Nitrobenzene-d5 was low in the original and the reprep. Second run reported. Page 8 of 62 , REPORT OF ANALYSISReport Number : Project Information : NC 28273 23-159-0034 00012 CES Group 3525 Whitehall Park Dr. Suite 150 Greg Hans Charlotte Received : 06/08/2023 EL Morrison Lumber Co Report Date : 06/16/2023 Sample ID : Lab No : Sampled:SB-1 97895 Matrix: 6/8/2023 9:30 Solids Test Results Units MDL MQL By Analytical Method Date / Time Analyzed DF 3.77 %Moisture 1 06/09/23 11:30 SW-DRYWTCNC 13.5 mg/Kg - dry 0.176 0.519Chromium 1 06/12/23 12:43 6010DJKC 1.06 mg/Kg - dry 0.082 0.311Lead 1 06/09/23 17:13 6010DJKC Qualifiers/ Definitions Analyte detected in blankBOutside QC Limit* Estimated valueJDilution FactorDF Method Quantitation LimitMQL Page 9 of 62 , REPORT OF ANALYSISReport Number : Project Information : NC 28273 23-159-0034 00012 CES Group 3525 Whitehall Park Dr. Suite 150 Greg Hans Charlotte Received : 06/08/2023 EL Morrison Lumber Co Report Date : 06/16/2023 Sample ID : Lab No : Sampled:SB-1 97895 Matrix: 6/8/2023 9:30 Solids Analytical Method: Prep Method: Test Results Units MDL MQL By Analytical Batch Date / Time Analyzed DF 5035 8260D Prep Batch(es):V34277 06/12/23 08:00 0.003 J mg/Kg - dry 0.002 0.020Acetone 1 06/12/23 11:29 V34278TBL <0.001 mg/Kg - dry 0.001 0.020Acrolein 1 06/12/23 11:29 V34278TBL <0.0008 mg/Kg - dry 0.0008 0.020Acrylonitrile 1 06/12/23 11:29 V34278TBL <0.0006 mg/Kg - dry 0.0006 0.005Benzene 1 06/12/23 11:29 V34278TBL <0.0005 mg/Kg - dry 0.0005 0.005Bromobenzene 1 06/12/23 11:29 V34278TBL <0.0008 mg/Kg - dry 0.0008 0.005Bromochloromethane 1 06/12/23 11:29 V34278TBL <0.001 mg/Kg - dry 0.001 0.005Bromodichloromethane 1 06/12/23 11:29 V34278TBL <0.001 mg/Kg - dry 0.001 0.005Bromoform 1 06/12/23 11:29 V34278TBL <0.001 mg/Kg - dry 0.001 0.010 Bromomethane 1 06/12/23 11:29 V34278TBL <0.0005 mg/Kg - dry 0.0005 0.005n-Butylbenzene 1 06/12/23 11:29 V34278TBL <0.0006 mg/Kg - dry 0.0006 0.005sec-Butyl benzene 1 06/12/23 11:29 V34278TBL <0.0005 mg/Kg - dry 0.0005 0.005tert-Butyl benzene 1 06/12/23 11:29 V34278TBL 0.001 J mg/Kg - dry 0.0007 0.005Carbon Disulfide 1 06/12/23 11:29 V34278TBL <0.001 mg/Kg - dry 0.001 0.005Carbon Tetrachloride 1 06/12/23 11:29 V34278TBL <0.0007 mg/Kg - dry 0.0007 0.005Chlorobenzene 1 06/12/23 11:29 V34278TBL <0.0009 mg/Kg - dry 0.0009 0.005 Chlorodibromomethane 1 06/12/23 11:29 V34278TBL <0.0009 mg/Kg - dry 0.0009 0.010Chloroethane 1 06/12/23 11:29 V34278TBL <0.001 mg/Kg - dry 0.001 0.005Chloroform 1 06/12/23 11:29 V34278TBL <0.0007 mg/Kg - dry 0.0007 0.010Chloromethane 1 06/12/23 11:29 V34278TBL <0.0005 mg/Kg - dry 0.0005 0.0052-Chlorotoluene 1 06/12/23 11:29 V34278TBL <0.0004 mg/Kg - dry 0.0004 0.0054-Chlorotoluene 1 06/12/23 11:29 V34278TBL <0.0008 mg/Kg - dry 0.0008 0.005Di-Isopropyl Ether (DIPE)1 06/12/23 11:29 V34278TBL Qualifiers/ Definitions Analyte detected in blankBOutside QC Limit* Estimated valueJDilution FactorDF Method Quantitation LimitMQL Page 10 of 62 , REPORT OF ANALYSISReport Number : Project Information : NC 28273 23-159-0034 00012 CES Group 3525 Whitehall Park Dr. Suite 150 Greg Hans Charlotte Received : 06/08/2023 EL Morrison Lumber Co Report Date : 06/16/2023 Sample ID : Lab No : Sampled:SB-1 97895 Matrix: 6/8/2023 9:30 Solids Analytical Method: Prep Method: Test Results Units MDL MQL By Analytical Batch Date / Time Analyzed DF 5035 8260D Prep Batch(es):V34277 06/12/23 08:00 <0.0005 mg/Kg - dry 0.0005 0.0101,2-Dibromo-3-Chloropropane 1 06/12/23 11:29 V34278TBL <0.0006 mg/Kg - dry 0.0006 0.0051,2-Dibromoethane 1 06/12/23 11:29 V34278TBL <0.0006 mg/Kg - dry 0.0006 0.005Dibromomethane 1 06/12/23 11:29 V34278TBL <0.0003 mg/Kg - dry 0.0003 0.0051,2-Dichlorobenzene 1 06/12/23 11:29 V34278TBL <0.0004 mg/Kg - dry 0.0004 0.0051,3-Dichlorobenzene 1 06/12/23 11:29 V34278TBL <0.0006 mg/Kg - dry 0.0006 0.0051,4-Dichlorobenzene 1 06/12/23 11:29 V34278TBL <0.001 mg/Kg - dry 0.001 0.010Dichlorodifluoromethane 1 06/12/23 11:29 V34278TBL <0.0009 mg/Kg - dry 0.0009 0.0051,1-Dichloroethane 1 06/12/23 11:29 V34278TBL <0.001 mg/Kg - dry 0.001 0.005 1,2-Dichloroethane 1 06/12/23 11:29 V34278TBL <0.0008 mg/Kg - dry 0.0008 0.0051,1-Dichloroethene 1 06/12/23 11:29 V34278TBL <0.0008 mg/Kg - dry 0.0008 0.005cis-1,2-Dichloroethene 1 06/12/23 11:29 V34278TBL <0.001 mg/Kg - dry 0.001 0.005trans-1,2-Dichloroethene 1 06/12/23 11:29 V34278TBL <0.0005 mg/Kg - dry 0.0005 0.0051,2-Dichloropropane 1 06/12/23 11:29 V34278TBL <0.0006 mg/Kg - dry 0.0006 0.0051,3-Dichloropropane 1 06/12/23 11:29 V34278TBL <0.001 mg/Kg - dry 0.001 0.0052,2-Dichloropropane 1 06/12/23 11:29 V34278TBL <0.0008 mg/Kg - dry 0.0008 0.005 1,1-Dichloropropene 1 06/12/23 11:29 V34278TBL <0.0006 mg/Kg - dry 0.0006 0.005cis-1,3-Dichloropropene 1 06/12/23 11:29 V34278TBL <0.0008 mg/Kg - dry 0.0008 0.005trans-1,3-Dichloropropene 1 06/12/23 11:29 V34278TBL <0.0006 mg/Kg - dry 0.0006 0.005Ethylbenzene 1 06/12/23 11:29 V34278TBL <0.0009 mg/Kg - dry 0.0009 0.051Ethyl Tertiary Butyl Ether (ETBE)1 06/12/23 11:29 V34278TBL <0.0008 mg/Kg - dry 0.0008 0.010Hexachlorobutadiene 1 06/12/23 11:29 V34278TBL 0.001 JB mg/Kg - dry 0.0007 0.010n-Hexane 1 06/12/23 11:29 V34278TBL Qualifiers/ Definitions Analyte detected in blankBOutside QC Limit* Estimated valueJDilution FactorDF Method Quantitation LimitMQL Page 11 of 62 , REPORT OF ANALYSISReport Number : Project Information : NC 28273 23-159-0034 00012 CES Group 3525 Whitehall Park Dr. Suite 150 Greg Hans Charlotte Received : 06/08/2023 EL Morrison Lumber Co Report Date : 06/16/2023 Sample ID : Lab No : Sampled:SB-1 97895 Matrix: 6/8/2023 9:30 Solids Analytical Method: Prep Method: Test Results Units MDL MQL By Analytical Batch Date / Time Analyzed DF 5035 8260D Prep Batch(es):V34277 06/12/23 08:00 <0.0006 mg/Kg - dry 0.0006 0.0202-Hexanone 1 06/12/23 11:29 V34278TBL <0.0005 mg/Kg - dry 0.0005 0.005Isopropylbenzene 1 06/12/23 11:29 V34278TBL <0.001 mg/Kg - dry 0.001 0.0054-Isopropyl toluene 1 06/12/23 11:29 V34278TBL <0.0007 mg/Kg - dry 0.0007 0.020Methyl Ethyl Ketone (MEK)1 06/12/23 11:29 V34278TBL <0.0006 mg/Kg - dry 0.0006 0.005Methyl tert-butyl ether (MTBE)1 06/12/23 11:29 V34278TBL <0.015 mg/Kg - dry 0.015 0.0204-Methyl-2-Pentanone 1 06/12/23 11:29 V34278TBL 0.001 JB mg/Kg - dry 0.001 0.010Methylene Chloride 1 06/12/23 11:29 V34278TBL <0.001 mg/Kg - dry 0.001 0.010Naphthalene 1 06/12/23 11:29 V34278TBL <0.0006 mg/Kg - dry 0.0006 0.005 n-Propylbenzene 1 06/12/23 11:29 V34278TBL <0.001 mg/Kg - dry 0.001 0.005Styrene 1 06/12/23 11:29 V34278TBL <0.001 mg/Kg - dry 0.001 0.0051,1,1,2-Tetrachloroethane 1 06/12/23 11:29 V34278TBL <0.0003 mg/Kg - dry 0.0003 0.0051,1,2,2-Tetrachloroethane 1 06/12/23 11:29 V34278TBL <0.0009 mg/Kg - dry 0.0009 0.005Tetrachloroethene 1 06/12/23 11:29 V34278TBL <0.0007 mg/Kg - dry 0.0007 0.005Toluene 1 06/12/23 11:29 V34278TBL <0.0006 mg/Kg - dry 0.0006 0.0101,2,3-Trichlorobenzene 1 06/12/23 11:29 V34278TBL <0.0007 mg/Kg - dry 0.0007 0.010 1,2,4-Trichlorobenzene 1 06/12/23 11:29 V34278TBL <0.001 mg/Kg - dry 0.001 0.0051,1,1-Trichloroethane 1 06/12/23 11:29 V34278TBL <0.0005 mg/Kg - dry 0.0005 0.0051,1,2-Trichloroethane 1 06/12/23 11:29 V34278TBL <0.0010 mg/Kg - dry 0.0010 0.005Trichloroethene 1 06/12/23 11:29 V34278TBL <0.002 mg/Kg - dry 0.002 0.010Trichlorofluoromethane 1 06/12/23 11:29 V34278TBL <0.0007 mg/Kg - dry 0.0007 0.0051,2,3-Trichloropropane 1 06/12/23 11:29 V34278TBL <0.0005 mg/Kg - dry 0.0005 0.0051,2,4-Trimethylbenzene 1 06/12/23 11:29 V34278TBL Qualifiers/ Definitions Analyte detected in blankBOutside QC Limit* Estimated valueJDilution FactorDF Method Quantitation LimitMQL Page 12 of 62 , REPORT OF ANALYSISReport Number : Project Information : NC 28273 23-159-0034 00012 CES Group 3525 Whitehall Park Dr. Suite 150 Greg Hans Charlotte Received : 06/08/2023 EL Morrison Lumber Co Report Date : 06/16/2023 Sample ID : Lab No : Sampled:SB-1 97895 Matrix: 6/8/2023 9:30 Solids Analytical Method: Prep Method: Test Results Units MDL MQL By Analytical Batch Date / Time Analyzed DF 5035 8260D Prep Batch(es):V34277 06/12/23 08:00 <0.0006 mg/Kg - dry 0.0006 0.0051,3,5-Trimethylbenzene 1 06/12/23 11:29 V34278TBL <0.0005 mg/Kg - dry 0.0005 0.010Vinyl Acetate 1 06/12/23 11:29 V34278TBL <0.0005 mg/Kg - dry 0.0005 0.010Vinyl Chloride 1 06/12/23 11:29 V34278TBL <0.0005 mg/Kg - dry 0.0005 0.005o-Xylene 1 06/12/23 11:29 V34278TBL <0.001 mg/Kg - dry 0.001 0.010m,p-Xylene 1 06/12/23 11:29 V34278TBL <0.0005 mg/Kg - dry 0.0005 0.005Xylene (Total)1 06/12/23 11:29 V34278 Surrogate: 4-Bromofluorobenzene 101 Limits: 70-130%06/12/23 11:291 TBL V34278 Surrogate: Dibromofluoromethane 107 Limits: 84-123%06/12/23 11:291 TBL V34278 Surrogate: Toluene-d8 97.2 Limits: 76-129%06/12/23 11:291 TBL V34278 Analytical Method: Prep Method: Test Results Units MDL MQL By Analytical Batch Date / Time Analyzed DF 3546 8270E Prep Batch(es):V34156 06/09/23 09:40 <0.120 mg/Kg - dry 0.120 0.685Acenaphthene 1 06/09/23 17:59 V34186AMP <0.109 mg/Kg - dry 0.109 0.685Acenaphthylene 1 06/09/23 17:59 V34186AMP <0.157 mg/Kg - dry 0.157 0.685Aniline 1 06/09/23 17:59 V34186AMP <0.148 mg/Kg - dry 0.148 0.685Anthracene 1 06/09/23 17:59 V34186AMP <0.144 mg/Kg - dry 0.144 0.685Benzo(a)anthracene 1 06/09/23 17:59 V34186AMP <0.152 mg/Kg - dry 0.152 0.685 Benzo(a)pyrene 1 06/09/23 17:59 V34186AMP <0.151 mg/Kg - dry 0.151 0.685Benzo(b)fluoranthene 1 06/09/23 17:59 V34186AMP <0.141 mg/Kg - dry 0.141 0.685Benzo(g,h,i)perylene 1 06/09/23 17:59 V34186AMP <0.142 mg/Kg - dry 0.142 0.685Benzo(k)fluoranthene 1 06/09/23 17:59 V34186AMP Qualifiers/ Definitions Analyte detected in blankBOutside QC Limit* Estimated valueJDilution FactorDF Method Quantitation LimitMQL Page 13 of 62 , REPORT OF ANALYSISReport Number : Project Information : NC 28273 23-159-0034 00012 CES Group 3525 Whitehall Park Dr. Suite 150 Greg Hans Charlotte Received : 06/08/2023 EL Morrison Lumber Co Report Date : 06/16/2023 Sample ID : Lab No : Sampled:SB-1 97895 Matrix: 6/8/2023 9:30 Solids Analytical Method: Prep Method: Test Results Units MDL MQL By Analytical Batch Date / Time Analyzed DF 3546 8270E Prep Batch(es):V34156 06/09/23 09:40 <0.602 mg/Kg - dry 0.602 2.08Benzoic Acid 1 06/09/23 17:59 V34186AMP <0.109 mg/Kg - dry 0.109 0.685Benzyl alcohol 1 06/09/23 17:59 V34186AMP <0.122 mg/Kg - dry 0.122 0.685Bis(2-Chloroethoxy)methane 1 06/09/23 17:59 V34186AMP <0.111 mg/Kg - dry 0.111 0.685Bis(2-Chloroethyl)ether 1 06/09/23 17:59 V34186AMP <0.141 mg/Kg - dry 0.141 0.342Bis(2-Chloroisopropyl)ether 1 06/09/23 17:59 V34186AMP <0.124 mg/Kg - dry 0.124 0.685Bis(2-ethylhexyl)phthalate 1 06/09/23 17:59 V34186AMP <0.113 mg/Kg - dry 0.113 0.6854-Bromophenyl phenyl ether 1 06/09/23 17:59 V34186AMP <0.117 mg/Kg - dry 0.117 0.342Butyl benzyl phthalate 1 06/09/23 17:59 V34186AMP <0.096 mg/Kg - dry 0.096 0.685 4-Chloro-3-methylphenol 1 06/09/23 17:59 V34186AMP <0.116 mg/Kg - dry 0.116 0.3424-Chloroaniline 1 06/09/23 17:59 V34186AMP <0.120 mg/Kg - dry 0.120 0.6852-Chloronaphthalene 1 06/09/23 17:59 V34186AMP <0.102 mg/Kg - dry 0.102 0.6852-Chlorophenol 1 06/09/23 17:59 V34186AMP <0.130 mg/Kg - dry 0.130 1.044-Chlorophenyl phenyl ether 1 06/09/23 17:59 V34186AMP <0.147 mg/Kg - dry 0.147 0.685Chrysene 1 06/09/23 17:59 V34186AMP <0.239 mg/Kg - dry 0.239 0.685Dibenz(a,h)anthracene 1 06/09/23 17:59 V34186AMP <0.123 mg/Kg - dry 0.123 0.685 Dibenzofuran 1 06/09/23 17:59 V34186AMP <0.098 mg/Kg - dry 0.098 0.6851,2-Dichlorobenzene 1 06/09/23 17:59 V34186AMP <0.101 mg/Kg - dry 0.101 0.6851,3-Dichlorobenzene 1 06/09/23 17:59 V34186AMP <0.101 mg/Kg - dry 0.101 0.3421,4-Dichlorobenzene 1 06/09/23 17:59 V34186AMP <0.152 mg/Kg - dry 0.152 0.6853,3'-Dichlorobenzidine 1 06/09/23 17:59 V34186AMP <0.099 mg/Kg - dry 0.099 0.6852,4-Dichlorophenol 1 06/09/23 17:59 V34186AMP <0.187 mg/Kg - dry 0.187 0.685Diethyl phthalate 1 06/09/23 17:59 V34186AMP Qualifiers/ Definitions Analyte detected in blankBOutside QC Limit* Estimated valueJDilution FactorDF Method Quantitation LimitMQL Page 14 of 62 , REPORT OF ANALYSISReport Number : Project Information : NC 28273 23-159-0034 00012 CES Group 3525 Whitehall Park Dr. Suite 150 Greg Hans Charlotte Received : 06/08/2023 EL Morrison Lumber Co Report Date : 06/16/2023 Sample ID : Lab No : Sampled:SB-1 97895 Matrix: 6/8/2023 9:30 Solids Analytical Method: Prep Method: Test Results Units MDL MQL By Analytical Batch Date / Time Analyzed DF 3546 8270E Prep Batch(es):V34156 06/09/23 09:40 <0.180 mg/Kg - dry 0.180 0.685Dimethyl phthalate 1 06/09/23 17:59 V34186AMP <0.112 mg/Kg - dry 0.112 0.3422,4-Dimethylphenol 1 06/09/23 17:59 V34186AMP <0.111 mg/Kg - dry 0.111 0.685Di-n-butyl phthalate 1 06/09/23 17:59 V34186AMP <0.249 mg/Kg - dry 0.249 1.564,6-Dinitro-2-methylphenol 1 06/09/23 17:59 V34186AMP <0.540 mg/Kg - dry 0.540 1.562,4-Dinitrophenol 1 06/09/23 17:59 V34186AMP <0.100 mg/Kg - dry 0.100 0.6852,4-Dinitrotoluene 1 06/09/23 17:59 V34186AMP <0.112 mg/Kg - dry 0.112 0.6852,6-Dinitrotoluene 1 06/09/23 17:59 V34186AMP <0.148 mg/Kg - dry 0.148 0.342Di-n-Octyl Phthalate 1 06/09/23 17:59 V34186AMP <0.127 mg/Kg - dry 0.127 0.685 Fluoranthene 1 06/09/23 17:59 V34186AMP <0.133 mg/Kg - dry 0.133 0.685Fluorene 1 06/09/23 17:59 V34186AMP <0.110 mg/Kg - dry 0.110 0.685Hexachlorobenzene 1 06/09/23 17:59 V34186AMP <0.101 mg/Kg - dry 0.101 0.685Hexachlorobutadiene 1 06/09/23 17:59 V34186AMP <0.163 mg/Kg - dry 0.163 0.685Hexachlorocyclopentadiene 1 06/09/23 17:59 V34186AMP <0.082 mg/Kg - dry 0.082 0.685Hexachloroethane 1 06/09/23 17:59 V34186AMP <0.186 mg/Kg - dry 0.186 0.685Indeno(1,2,3-cd)pyrene 1 06/09/23 17:59 V34186AMP <0.198 mg/Kg - dry 0.198 0.685 Isophorone 1 06/09/23 17:59 V34186AMP <0.110 mg/Kg - dry 0.110 0.6851-Methylnaphthalene 1 06/09/23 17:59 V34186AMP <0.103 mg/Kg - dry 0.103 0.6852-Methylnaphthalene 1 06/09/23 17:59 V34186AMP <0.100 mg/Kg - dry 0.100 0.6852-Methylphenol 1 06/09/23 17:59 V34186AMP <0.088 mg/Kg - dry 0.088 0.6853&4 Methylphenol 1 06/09/23 17:59 V34186AMP <0.149 mg/Kg - dry 0.149 0.685Naphthalene 1 06/09/23 17:59 V34186AMP <0.100 mg/Kg - dry 0.100 0.6852-Nitroaniline 1 06/09/23 17:59 V34186AMP Qualifiers/ Definitions Analyte detected in blankBOutside QC Limit* Estimated valueJDilution FactorDF Method Quantitation LimitMQL Page 15 of 62 , REPORT OF ANALYSISReport Number : Project Information : NC 28273 23-159-0034 00012 CES Group 3525 Whitehall Park Dr. Suite 150 Greg Hans Charlotte Received : 06/08/2023 EL Morrison Lumber Co Report Date : 06/16/2023 Sample ID : Lab No : Sampled:SB-1 97895 Matrix: 6/8/2023 9:30 Solids Analytical Method: Prep Method: Test Results Units MDL MQL By Analytical Batch Date / Time Analyzed DF 3546 8270E Prep Batch(es):V34156 06/09/23 09:40 <0.124 mg/Kg - dry 0.124 0.6853-Nitroaniline 1 06/09/23 17:59 V34186AMP <0.096 mg/Kg - dry 0.096 0.3424-Nitroaniline 1 06/09/23 17:59 V34186AMP <0.120 mg/Kg - dry 0.120 0.342Nitrobenzene 1 06/09/23 17:59 V34186AMP <0.092 mg/Kg - dry 0.092 0.6852-Nitrophenol 1 06/09/23 17:59 V34186AMP <0.121 mg/Kg - dry 0.121 0.6854-Nitrophenol 1 06/09/23 17:59 V34186AMP <0.273 mg/Kg - dry 0.273 0.685N-Nitrosodimethylamine 1 06/09/23 17:59 V34186AMP <0.188 mg/Kg - dry 0.188 0.685N-Nitrosodiphenylamine 1 06/09/23 17:59 V34186AMP <0.122 mg/Kg - dry 0.122 0.685N-Nitroso-di-n-propylamine 1 06/09/23 17:59 V34186AMP <0.360 mg/Kg - dry 0.360 1.04 Pentachlorophenol 1 06/09/23 17:59 V34186AMP <0.216 mg/Kg - dry 0.216 0.685Phenanthrene 1 06/09/23 17:59 V34186AMP <0.116 mg/Kg - dry 0.116 0.685Phenol 1 06/09/23 17:59 V34186AMP <0.139 mg/Kg - dry 0.139 0.685Pyrene 1 06/09/23 17:59 V34186AMP <0.082 mg/Kg - dry 0.082 0.342Pyridine 1 06/09/23 17:59 V34186AMP <0.111 mg/Kg - dry 0.111 0.6851,2,4-Trichlorobenzene 1 06/09/23 17:59 V34186AMP <0.099 mg/Kg - dry 0.099 0.6852,4,5-Trichlorophenol 1 06/09/23 17:59 V34186AMP <0.100 mg/Kg - dry 0.100 0.685 2,4,6-Trichlorophenol 1 06/09/23 17:59 V34186AMP 8270ESurrogate: Phenol-d5 61.0 Limits: 34-121%06/09/23 17:591 AMP Surrogate: 2-Fluorobiphenyl 82.5 Limits: 44-115%06/09/23 17:591 AMP V34186 Surrogate: 2-Fluorophenol 67.6 Limits: 35-115%06/09/23 17:591 AMP V34186 Surrogate: Nitrobenzene-d5 47.5 Limits: 37-122%06/09/23 17:591 AMP V34186 Surrogate: 4-Terphenyl-d14 94.6 Limits: 54-127%06/09/23 17:591 AMP V34186 Surrogate: 2,4,6-Tribromophenol 78.7 Limits: 39-132%06/09/23 17:591 AMP V34186 Qualifiers/ Definitions Analyte detected in blankBOutside QC Limit* Estimated valueJDilution FactorDF Method Quantitation LimitMQL Page 16 of 62 , REPORT OF ANALYSISReport Number : Project Information : NC 28273 23-159-0034 00012 CES Group 3525 Whitehall Park Dr. Suite 150 Greg Hans Charlotte Received : 06/08/2023 EL Morrison Lumber Co Report Date : 06/16/2023 Sample ID : Lab No : Sampled:SB-1 97895 Matrix: 6/8/2023 9:30 Solids Analytical Method: Prep Method: Test Results Units MDL MQL By Analytical Batch Date / Time Analyzed DF MAEPH (Prep) MADEP-EPH Prep Batch(es):V34174 06/09/23 11:30 <9.62 mg/Kg - dry 9.62 52.3Aliphatic C9-C18 1 06/12/23 23:01 V34319NDL <12.8 mg/Kg - dry 12.8 52.3Aliphatic C19-C36 1 06/12/23 23:01 V34319NDL <14.9 mg/Kg - dry 14.9 52.3Aromatic C11-C22 1 06/12/23 23:01 V34319NDL MADEP-EPHSurrogate: 2-Bromonaphthalene 100 Limits: 40-140%06/12/23 23:011 NDL MADEP-EPHSurrogate: Chlorooctadecane 70.5 Limits: 40-140%06/12/23 23:011 NDL MADEP-EPHSurrogate: OTP Surrogate 83.2 Limits: 40-140%06/12/23 23:011 NDL Surrogate: 2-Fluorobiphenyl 107 Limits: 40-140%06/12/23 23:011 NDL V34319 Analytical Method: Prep Method: Test Results Units MDL MQL By Analytical Batch Date / Time Analyzed DF MAVPH (Prep) MADEP-VPH Prep Batch(es):V34192 06/09/23 08:00 <1.37 mg/Kg - dry 1.37 9.02 Aliphatic C5-C8 100 06/09/23 13:49 V34193TBL <5.14 mg/Kg - dry 5.14 9.02Aliphatic C9-C12 100 06/09/23 13:49 V34193TBL <0.703 mg/Kg - dry 0.703 9.02Aromatic C9-C10 100 06/09/23 13:49 V34193TBL MADEP-VPHSurrogate: 2,5-Dibromotoluene (FID)99.1 Limits: 70-130%06/09/23 13:49100 TBL MADEP-VPHSurrogate: 2,5-Dibromotoluene (PID)105 Limits: 70-130%06/09/23 13:49100 TBL Qualifiers/ Definitions Analyte detected in blankBOutside QC Limit* Estimated valueJDilution FactorDF Method Quantitation LimitMQL Page 17 of 62 , REPORT OF ANALYSISReport Number : Project Information : NC 28273 23-159-0034 00012 CES Group 3525 Whitehall Park Dr. Suite 150 Greg Hans Charlotte Received : 06/08/2023 EL Morrison Lumber Co Report Date : 06/16/2023 Sample ID : Lab No : Sampled:SB-2 97896 Matrix: 6/8/2023 10:10 Solids Test Results Units MDL MQL By Analytical Method Date / Time Analyzed DF 5.89 %Moisture 1 06/09/23 11:30 SW-DRYWTCNC 11.5 mg/Kg - dry 0.180 0.531Chromium 1 06/12/23 12:48 6010DJKC 0.742 mg/Kg - dry 0.083 0.318Lead 1 06/09/23 17:18 6010DJKC Qualifiers/ Definitions Analyte detected in blankBOutside QC Limit* Estimated valueJDilution FactorDF Method Quantitation LimitMQL Page 18 of 62 , REPORT OF ANALYSISReport Number : Project Information : NC 28273 23-159-0034 00012 CES Group 3525 Whitehall Park Dr. Suite 150 Greg Hans Charlotte Received : 06/08/2023 EL Morrison Lumber Co Report Date : 06/16/2023 Sample ID : Lab No : Sampled:SB-2 97896 Matrix: 6/8/2023 10:10 Solids Analytical Method: Prep Method: Test Results Units MDL MQL By Analytical Batch Date / Time Analyzed DF 5035 8260D Prep Batch(es):V34216 06/09/23 08:00 0.003 J mg/Kg - dry 0.002 0.021Acetone 1 06/09/23 14:41 V34217TBL <0.001 mg/Kg - dry 0.001 0.021Acrolein 1 06/09/23 14:41 V34217TBL <0.0008 mg/Kg - dry 0.0008 0.021Acrylonitrile 1 06/09/23 14:41 V34217TBL <0.0006 mg/Kg - dry 0.0006 0.005Benzene 1 06/09/23 14:41 V34217TBL <0.0005 mg/Kg - dry 0.0005 0.005Bromobenzene 1 06/09/23 14:41 V34217TBL <0.0009 mg/Kg - dry 0.0009 0.005Bromochloromethane 1 06/09/23 14:41 V34217TBL <0.001 mg/Kg - dry 0.001 0.005Bromodichloromethane 1 06/09/23 14:41 V34217TBL <0.001 mg/Kg - dry 0.001 0.005Bromoform 1 06/09/23 14:41 V34217TBL <0.001 mg/Kg - dry 0.001 0.010 Bromomethane 1 06/09/23 14:41 V34217TBL <0.0005 mg/Kg - dry 0.0005 0.005n-Butylbenzene 1 06/09/23 14:41 V34217TBL <0.0006 mg/Kg - dry 0.0006 0.005sec-Butyl benzene 1 06/09/23 14:41 V34217TBL <0.0005 mg/Kg - dry 0.0005 0.005tert-Butyl benzene 1 06/09/23 14:41 V34217TBL 0.001 J mg/Kg - dry 0.0007 0.005Carbon Disulfide 1 06/09/23 14:41 V34217TBL <0.001 mg/Kg - dry 0.001 0.005Carbon Tetrachloride 1 06/09/23 14:41 V34217TBL <0.0007 mg/Kg - dry 0.0007 0.005Chlorobenzene 1 06/09/23 14:41 V34217TBL <0.0009 mg/Kg - dry 0.0009 0.005 Chlorodibromomethane 1 06/09/23 14:41 V34217TBL <0.0009 mg/Kg - dry 0.0009 0.010Chloroethane 1 06/09/23 14:41 V34217TBL <0.001 mg/Kg - dry 0.001 0.005Chloroform 1 06/09/23 14:41 V34217TBL <0.0007 mg/Kg - dry 0.0007 0.010Chloromethane 1 06/09/23 14:41 V34217TBL <0.0005 mg/Kg - dry 0.0005 0.0052-Chlorotoluene 1 06/09/23 14:41 V34217TBL <0.0004 mg/Kg - dry 0.0004 0.0054-Chlorotoluene 1 06/09/23 14:41 V34217TBL <0.0008 mg/Kg - dry 0.0008 0.005Di-Isopropyl Ether (DIPE)1 06/09/23 14:41 V34217TBL Qualifiers/ Definitions Analyte detected in blankBOutside QC Limit* Estimated valueJDilution FactorDF Method Quantitation LimitMQL Page 19 of 62 , REPORT OF ANALYSISReport Number : Project Information : NC 28273 23-159-0034 00012 CES Group 3525 Whitehall Park Dr. Suite 150 Greg Hans Charlotte Received : 06/08/2023 EL Morrison Lumber Co Report Date : 06/16/2023 Sample ID : Lab No : Sampled:SB-2 97896 Matrix: 6/8/2023 10:10 Solids Analytical Method: Prep Method: Test Results Units MDL MQL By Analytical Batch Date / Time Analyzed DF 5035 8260D Prep Batch(es):V34216 06/09/23 08:00 <0.0005 mg/Kg - dry 0.0005 0.0101,2-Dibromo-3-Chloropropane 1 06/09/23 14:41 V34217TBL <0.0006 mg/Kg - dry 0.0006 0.0051,2-Dibromoethane 1 06/09/23 14:41 V34217TBL <0.0006 mg/Kg - dry 0.0006 0.005Dibromomethane 1 06/09/23 14:41 V34217TBL <0.0003 mg/Kg - dry 0.0003 0.0051,2-Dichlorobenzene 1 06/09/23 14:41 V34217TBL <0.0004 mg/Kg - dry 0.0004 0.0051,3-Dichlorobenzene 1 06/09/23 14:41 V34217TBL <0.0006 mg/Kg - dry 0.0006 0.0051,4-Dichlorobenzene 1 06/09/23 14:41 V34217TBL <0.001 mg/Kg - dry 0.001 0.010Dichlorodifluoromethane 1 06/09/23 14:41 V34217TBL <0.0009 mg/Kg - dry 0.0009 0.0051,1-Dichloroethane 1 06/09/23 14:41 V34217TBL <0.001 mg/Kg - dry 0.001 0.005 1,2-Dichloroethane 1 06/09/23 14:41 V34217TBL <0.0008 mg/Kg - dry 0.0008 0.0051,1-Dichloroethene 1 06/09/23 14:41 V34217TBL <0.0008 mg/Kg - dry 0.0008 0.005cis-1,2-Dichloroethene 1 06/09/23 14:41 V34217TBL <0.001 mg/Kg - dry 0.001 0.005trans-1,2-Dichloroethene 1 06/09/23 14:41 V34217TBL <0.0005 mg/Kg - dry 0.0005 0.0051,2-Dichloropropane 1 06/09/23 14:41 V34217TBL <0.0006 mg/Kg - dry 0.0006 0.0051,3-Dichloropropane 1 06/09/23 14:41 V34217TBL <0.001 mg/Kg - dry 0.001 0.0052,2-Dichloropropane 1 06/09/23 14:41 V34217TBL <0.0008 mg/Kg - dry 0.0008 0.005 1,1-Dichloropropene 1 06/09/23 14:41 V34217TBL <0.0006 mg/Kg - dry 0.0006 0.005cis-1,3-Dichloropropene 1 06/09/23 14:41 V34217TBL <0.0009 mg/Kg - dry 0.0009 0.005trans-1,3-Dichloropropene 1 06/09/23 14:41 V34217TBL <0.0006 mg/Kg - dry 0.0006 0.005Ethylbenzene 1 06/09/23 14:41 V34217TBL <0.0009 mg/Kg - dry 0.0009 0.053Ethyl Tertiary Butyl Ether (ETBE)1 06/09/23 14:41 V34217TBL <0.0008 mg/Kg - dry 0.0008 0.010Hexachlorobutadiene 1 06/09/23 14:41 V34217TBL 0.002 J mg/Kg - dry 0.0007 0.010n-Hexane 1 06/09/23 14:41 V34217TBL Qualifiers/ Definitions Analyte detected in blankBOutside QC Limit* Estimated valueJDilution FactorDF Method Quantitation LimitMQL Page 20 of 62 , REPORT OF ANALYSISReport Number : Project Information : NC 28273 23-159-0034 00012 CES Group 3525 Whitehall Park Dr. Suite 150 Greg Hans Charlotte Received : 06/08/2023 EL Morrison Lumber Co Report Date : 06/16/2023 Sample ID : Lab No : Sampled:SB-2 97896 Matrix: 6/8/2023 10:10 Solids Analytical Method: Prep Method: Test Results Units MDL MQL By Analytical Batch Date / Time Analyzed DF 5035 8260D Prep Batch(es):V34216 06/09/23 08:00 <0.0007 mg/Kg - dry 0.0007 0.0212-Hexanone 1 06/09/23 14:41 V34217TBL <0.0005 mg/Kg - dry 0.0005 0.005Isopropylbenzene 1 06/09/23 14:41 V34217TBL <0.001 mg/Kg - dry 0.001 0.0054-Isopropyl toluene 1 06/09/23 14:41 V34217TBL 0.003 J mg/Kg - dry 0.0007 0.021Methyl Ethyl Ketone (MEK)1 06/09/23 14:41 V34217TBL <0.0007 mg/Kg - dry 0.0007 0.005Methyl tert-butyl ether (MTBE)1 06/09/23 14:41 V34217TBL <0.015 mg/Kg - dry 0.015 0.0214-Methyl-2-Pentanone 1 06/09/23 14:41 V34217TBL 0.002 JB mg/Kg - dry 0.001 0.010Methylene Chloride 1 06/09/23 14:41 V34217TBL <0.001 mg/Kg - dry 0.001 0.010Naphthalene 1 06/09/23 14:41 V34217TBL <0.0006 mg/Kg - dry 0.0006 0.005 n-Propylbenzene 1 06/09/23 14:41 V34217TBL <0.001 mg/Kg - dry 0.001 0.005Styrene 1 06/09/23 14:41 V34217TBL <0.001 mg/Kg - dry 0.001 0.0051,1,1,2-Tetrachloroethane 1 06/09/23 14:41 V34217TBL <0.0003 mg/Kg - dry 0.0003 0.0051,1,2,2-Tetrachloroethane 1 06/09/23 14:41 V34217TBL <0.0010 mg/Kg - dry 0.0010 0.005Tetrachloroethene 1 06/09/23 14:41 V34217TBL <0.0007 mg/Kg - dry 0.0007 0.005Toluene 1 06/09/23 14:41 V34217TBL <0.0006 mg/Kg - dry 0.0006 0.0101,2,3-Trichlorobenzene 1 06/09/23 14:41 V34217TBL <0.0007 mg/Kg - dry 0.0007 0.010 1,2,4-Trichlorobenzene 1 06/09/23 14:41 V34217TBL <0.001 mg/Kg - dry 0.001 0.0051,1,1-Trichloroethane 1 06/09/23 14:41 V34217TBL <0.0005 mg/Kg - dry 0.0005 0.0051,1,2-Trichloroethane 1 06/09/23 14:41 V34217TBL <0.0010 mg/Kg - dry 0.0010 0.005Trichloroethene 1 06/09/23 14:41 V34217TBL <0.002 mg/Kg - dry 0.002 0.010Trichlorofluoromethane 1 06/09/23 14:41 V34217TBL <0.0008 mg/Kg - dry 0.0008 0.0051,2,3-Trichloropropane 1 06/09/23 14:41 V34217TBL <0.0005 mg/Kg - dry 0.0005 0.0051,2,4-Trimethylbenzene 1 06/09/23 14:41 V34217TBL Qualifiers/ Definitions Analyte detected in blankBOutside QC Limit* Estimated valueJDilution FactorDF Method Quantitation LimitMQL Page 21 of 62 , REPORT OF ANALYSISReport Number : Project Information : NC 28273 23-159-0034 00012 CES Group 3525 Whitehall Park Dr. Suite 150 Greg Hans Charlotte Received : 06/08/2023 EL Morrison Lumber Co Report Date : 06/16/2023 Sample ID : Lab No : Sampled:SB-2 97896 Matrix: 6/8/2023 10:10 Solids Analytical Method: Prep Method: Test Results Units MDL MQL By Analytical Batch Date / Time Analyzed DF 5035 8260D Prep Batch(es):V34216 06/09/23 08:00 <0.0006 mg/Kg - dry 0.0006 0.0051,3,5-Trimethylbenzene 1 06/09/23 14:41 V34217TBL <0.0005 mg/Kg - dry 0.0005 0.010Vinyl Acetate 1 06/09/23 14:41 V34217TBL <0.0005 mg/Kg - dry 0.0005 0.010Vinyl Chloride 1 06/09/23 14:41 V34217TBL <0.0005 mg/Kg - dry 0.0005 0.005o-Xylene 1 06/09/23 14:41 V34217TBL <0.001 mg/Kg - dry 0.001 0.010m,p-Xylene 1 06/09/23 14:41 V34217TBL <0.0005 mg/Kg - dry 0.0005 0.005Xylene (Total)1 06/09/23 14:41 V34217 Surrogate: 4-Bromofluorobenzene 101 Limits: 70-130%06/09/23 14:411 TBL V34217 Surrogate: Dibromofluoromethane 107 Limits: 84-123%06/09/23 14:411 TBL V34217 Surrogate: Toluene-d8 112 Limits: 76-129%06/09/23 14:411 TBL V34217 Analytical Method: Prep Method: Test Results Units MDL MQL By Analytical Batch Date / Time Analyzed DF 3546 8270E Prep Batch(es):V34327 06/14/23 09:30 <0.123 mg/Kg - dry 0.123 0.701Acenaphthene 1 06/14/23 18:12 V34353AMP <0.111 mg/Kg - dry 0.111 0.701Acenaphthylene 1 06/14/23 18:12 V34353AMP <0.161 mg/Kg - dry 0.161 0.701Aniline 1 06/14/23 18:12 V34353AMP <0.151 mg/Kg - dry 0.151 0.701Anthracene 1 06/14/23 18:12 V34353AMP <0.147 mg/Kg - dry 0.147 0.701Benzo(a)anthracene 1 06/14/23 18:12 V34353AMP <0.156 mg/Kg - dry 0.156 0.701 Benzo(a)pyrene 1 06/14/23 18:12 V34353AMP <0.155 mg/Kg - dry 0.155 0.701Benzo(b)fluoranthene 1 06/14/23 18:12 V34353AMP <0.144 mg/Kg - dry 0.144 0.701Benzo(g,h,i)perylene 1 06/14/23 18:12 V34353AMP <0.145 mg/Kg - dry 0.145 0.701Benzo(k)fluoranthene 1 06/14/23 18:12 V34353AMP Qualifiers/ Definitions Analyte detected in blankBOutside QC Limit* Estimated valueJDilution FactorDF Method Quantitation LimitMQL Page 22 of 62 , REPORT OF ANALYSISReport Number : Project Information : NC 28273 23-159-0034 00012 CES Group 3525 Whitehall Park Dr. Suite 150 Greg Hans Charlotte Received : 06/08/2023 EL Morrison Lumber Co Report Date : 06/16/2023 Sample ID : Lab No : Sampled:SB-2 97896 Matrix: 6/8/2023 10:10 Solids Analytical Method: Prep Method: Test Results Units MDL MQL By Analytical Batch Date / Time Analyzed DF 3546 8270E Prep Batch(es):V34327 06/14/23 09:30 <0.616 mg/Kg - dry 0.616 2.13Benzoic Acid 1 06/14/23 18:12 V34353AMP <0.111 mg/Kg - dry 0.111 0.701Benzyl alcohol 1 06/14/23 18:12 V34353AMP <0.125 mg/Kg - dry 0.125 0.701Bis(2-Chloroethoxy)methane 1 06/14/23 18:12 V34353AMP <0.113 mg/Kg - dry 0.113 0.701Bis(2-Chloroethyl)ether 1 06/14/23 18:12 V34353AMP <0.144 mg/Kg - dry 0.144 0.350Bis(2-Chloroisopropyl)ether 1 06/14/23 18:12 V34353AMP <0.127 mg/Kg - dry 0.127 0.701Bis(2-ethylhexyl)phthalate 1 06/14/23 18:12 V34353AMP <0.115 mg/Kg - dry 0.115 0.7014-Bromophenyl phenyl ether 1 06/14/23 18:12 V34353AMP <0.120 mg/Kg - dry 0.120 0.350Butyl benzyl phthalate 1 06/14/23 18:12 V34353AMP <0.098 mg/Kg - dry 0.098 0.701 4-Chloro-3-methylphenol 1 06/14/23 18:12 V34353AMP <0.119 mg/Kg - dry 0.119 0.3504-Chloroaniline 1 06/14/23 18:12 V34353AMP <0.123 mg/Kg - dry 0.123 0.7012-Chloronaphthalene 1 06/14/23 18:12 V34353AMP <0.104 mg/Kg - dry 0.104 0.7012-Chlorophenol 1 06/14/23 18:12 V34353AMP <0.133 mg/Kg - dry 0.133 1.064-Chlorophenyl phenyl ether 1 06/14/23 18:12 V34353AMP <0.150 mg/Kg - dry 0.150 0.701Chrysene 1 06/14/23 18:12 V34353AMP <0.244 mg/Kg - dry 0.244 0.701Dibenz(a,h)anthracene 1 06/14/23 18:12 V34353AMP <0.126 mg/Kg - dry 0.126 0.701 Dibenzofuran 1 06/14/23 18:12 V34353AMP <0.100 mg/Kg - dry 0.100 0.7011,2-Dichlorobenzene 1 06/14/23 18:12 V34353AMP <0.103 mg/Kg - dry 0.103 0.7011,3-Dichlorobenzene 1 06/14/23 18:12 V34353AMP <0.103 mg/Kg - dry 0.103 0.3501,4-Dichlorobenzene 1 06/14/23 18:12 V34353AMP <0.156 mg/Kg - dry 0.156 0.7013,3'-Dichlorobenzidine 1 06/14/23 18:12 V34353AMP <0.101 mg/Kg - dry 0.101 0.7012,4-Dichlorophenol 1 06/14/23 18:12 V34353AMP <0.191 mg/Kg - dry 0.191 0.701Diethyl phthalate 1 06/14/23 18:12 V34353AMP Qualifiers/ Definitions Analyte detected in blankBOutside QC Limit* Estimated valueJDilution FactorDF Method Quantitation LimitMQL Page 23 of 62 , REPORT OF ANALYSISReport Number : Project Information : NC 28273 23-159-0034 00012 CES Group 3525 Whitehall Park Dr. Suite 150 Greg Hans Charlotte Received : 06/08/2023 EL Morrison Lumber Co Report Date : 06/16/2023 Sample ID : Lab No : Sampled:SB-2 97896 Matrix: 6/8/2023 10:10 Solids Analytical Method: Prep Method: Test Results Units MDL MQL By Analytical Batch Date / Time Analyzed DF 3546 8270E Prep Batch(es):V34327 06/14/23 09:30 <0.184 mg/Kg - dry 0.184 0.701Dimethyl phthalate 1 06/14/23 18:12 V34353AMP <0.114 mg/Kg - dry 0.114 0.3502,4-Dimethylphenol 1 06/14/23 18:12 V34353AMP <0.113 mg/Kg - dry 0.113 0.701Di-n-butyl phthalate 1 06/14/23 18:12 V34353AMP <0.255 mg/Kg - dry 0.255 1.594,6-Dinitro-2-methylphenol 1 06/14/23 18:12 V34353AMP <0.552 mg/Kg - dry 0.552 1.592,4-Dinitrophenol 1 06/14/23 18:12 V34353AMP <0.102 mg/Kg - dry 0.102 0.7012,4-Dinitrotoluene 1 06/14/23 18:12 V34353AMP <0.114 mg/Kg - dry 0.114 0.7012,6-Dinitrotoluene 1 06/14/23 18:12 V34353AMP <0.151 mg/Kg - dry 0.151 0.350Di-n-Octyl Phthalate 1 06/14/23 18:12 V34353AMP <0.130 mg/Kg - dry 0.130 0.701 Fluoranthene 1 06/14/23 18:12 V34353AMP <0.136 mg/Kg - dry 0.136 0.701Fluorene 1 06/14/23 18:12 V34353AMP <0.112 mg/Kg - dry 0.112 0.701Hexachlorobenzene 1 06/14/23 18:12 V34353AMP <0.103 mg/Kg - dry 0.103 0.701Hexachlorobutadiene 1 06/14/23 18:12 V34353AMP <0.166 mg/Kg - dry 0.166 0.701Hexachlorocyclopentadiene 1 06/14/23 18:12 V34353AMP <0.084 mg/Kg - dry 0.084 0.701Hexachloroethane 1 06/14/23 18:12 V34353AMP <0.190 mg/Kg - dry 0.190 0.701Indeno(1,2,3-cd)pyrene 1 06/14/23 18:12 V34353AMP <0.202 mg/Kg - dry 0.202 0.701 Isophorone 1 06/14/23 18:12 V34353AMP <0.112 mg/Kg - dry 0.112 0.7011-Methylnaphthalene 1 06/14/23 18:12 V34353AMP <0.106 mg/Kg - dry 0.106 0.7012-Methylnaphthalene 1 06/14/23 18:12 V34353AMP <0.103 mg/Kg - dry 0.103 0.7012-Methylphenol 1 06/14/23 18:12 V34353AMP <0.090 mg/Kg - dry 0.090 0.7013&4 Methylphenol 1 06/14/23 18:12 V34353AMP <0.153 mg/Kg - dry 0.153 0.701Naphthalene 1 06/14/23 18:12 V34353AMP <0.102 mg/Kg - dry 0.102 0.7012-Nitroaniline 1 06/14/23 18:12 V34353AMP Qualifiers/ Definitions Analyte detected in blankBOutside QC Limit* Estimated valueJDilution FactorDF Method Quantitation LimitMQL Page 24 of 62 , REPORT OF ANALYSISReport Number : Project Information : NC 28273 23-159-0034 00012 CES Group 3525 Whitehall Park Dr. Suite 150 Greg Hans Charlotte Received : 06/08/2023 EL Morrison Lumber Co Report Date : 06/16/2023 Sample ID : Lab No : Sampled:SB-2 97896 Matrix: 6/8/2023 10:10 Solids Analytical Method: Prep Method: Test Results Units MDL MQL By Analytical Batch Date / Time Analyzed DF 3546 8270E Prep Batch(es):V34327 06/14/23 09:30 <0.127 mg/Kg - dry 0.127 0.7013-Nitroaniline 1 06/14/23 18:12 V34353AMP <0.099 mg/Kg - dry 0.099 0.3504-Nitroaniline 1 06/14/23 18:12 V34353AMP <0.123 mg/Kg - dry 0.123 0.350Nitrobenzene 1 06/14/23 18:12 V34353AMP <0.094 mg/Kg - dry 0.094 0.7012-Nitrophenol 1 06/14/23 18:12 V34353AMP <0.124 mg/Kg - dry 0.124 0.7014-Nitrophenol 1 06/14/23 18:12 V34353AMP <0.279 mg/Kg - dry 0.279 0.701N-Nitrosodimethylamine 1 06/14/23 18:12 V34353AMP <0.192 mg/Kg - dry 0.192 0.701N-Nitrosodiphenylamine 1 06/14/23 18:12 V34353AMP <0.125 mg/Kg - dry 0.125 0.701N-Nitroso-di-n-propylamine 1 06/14/23 18:12 V34353AMP <0.368 mg/Kg - dry 0.368 1.06 Pentachlorophenol 1 06/14/23 18:12 V34353AMP <0.221 mg/Kg - dry 0.221 0.701Phenanthrene 1 06/14/23 18:12 V34353AMP <0.119 mg/Kg - dry 0.119 0.701Phenol 1 06/14/23 18:12 V34353AMP <0.142 mg/Kg - dry 0.142 0.701Pyrene 1 06/14/23 18:12 V34353AMP <0.084 mg/Kg - dry 0.084 0.350Pyridine 1 06/14/23 18:12 V34353AMP <0.113 mg/Kg - dry 0.113 0.7011,2,4-Trichlorobenzene 1 06/14/23 18:12 V34353AMP <0.102 mg/Kg - dry 0.102 0.7012,4,5-Trichlorophenol 1 06/14/23 18:12 V34353AMP <0.102 mg/Kg - dry 0.102 0.701 2,4,6-Trichlorophenol 1 06/14/23 18:12 V34353AMP 8270ESurrogate: Phenol-d5 60.1 Limits: 34-121%06/14/23 18:121 AMP Surrogate: 2-Fluorobiphenyl 68.3 Limits: 44-115%06/14/23 18:121 AMP V34353 Surrogate: 2-Fluorophenol 64.6 Limits: 35-115%06/14/23 18:121 AMP V34353 Surrogate: Nitrobenzene-d5 30.2 *Limits: 37-122%06/14/23 18:121 AMP V34353 Surrogate: 4-Terphenyl-d14 82.6 Limits: 54-127%06/14/23 18:121 AMP V34353 Surrogate: 2,4,6-Tribromophenol 61.3 Limits: 39-132%06/14/23 18:121 AMP V34353 Qualifiers/ Definitions Analyte detected in blankBOutside QC Limit* Estimated valueJDilution FactorDF Method Quantitation LimitMQL Page 25 of 62 , REPORT OF ANALYSISReport Number : Project Information : NC 28273 23-159-0034 00012 CES Group 3525 Whitehall Park Dr. Suite 150 Greg Hans Charlotte Received : 06/08/2023 EL Morrison Lumber Co Report Date : 06/16/2023 Sample ID : Lab No : Sampled:SB-2 97896 Matrix: 6/8/2023 10:10 Solids Analytical Method: Prep Method: Test Results Units MDL MQL By Analytical Batch Date / Time Analyzed DF MAEPH (Prep) MADEP-EPH Prep Batch(es):V34174 06/09/23 11:30 <9.78 mg/Kg - dry 9.78 53.1Aliphatic C9-C18 1 06/12/23 23:37 V34319NDL <13.0 mg/Kg - dry 13.0 53.1Aliphatic C19-C36 1 06/12/23 23:37 V34319NDL <15.1 mg/Kg - dry 15.1 53.1Aromatic C11-C22 1 06/12/23 23:37 V34319NDL MADEP-EPHSurrogate: 2-Bromonaphthalene 86.0 Limits: 40-140%06/12/23 23:371 NDL MADEP-EPHSurrogate: Chlorooctadecane 69.8 Limits: 40-140%06/12/23 23:371 NDL MADEP-EPHSurrogate: OTP Surrogate 66.0 Limits: 40-140%06/12/23 23:371 NDL Surrogate: 2-Fluorobiphenyl 94.8 Limits: 40-140%06/12/23 23:371 NDL V34319 Analytical Method: Prep Method: Test Results Units MDL MQL By Analytical Batch Date / Time Analyzed DF MAVPH (Prep) MADEP-VPH Prep Batch(es):V34192 06/09/23 08:00 <1.42 mg/Kg - dry 1.42 9.38 Aliphatic C5-C8 100 06/09/23 14:13 V34193TBL <5.34 mg/Kg - dry 5.34 9.38Aliphatic C9-C12 100 06/09/23 14:13 V34193TBL <0.732 mg/Kg - dry 0.732 9.38Aromatic C9-C10 100 06/09/23 14:13 V34193TBL MADEP-VPHSurrogate: 2,5-Dibromotoluene (FID)107 Limits: 70-130%06/09/23 14:13100 TBL MADEP-VPHSurrogate: 2,5-Dibromotoluene (PID)111 Limits: 70-130%06/09/23 14:13100 TBL Qualifiers/ Definitions Analyte detected in blankBOutside QC Limit* Estimated valueJDilution FactorDF Method Quantitation LimitMQL Page 26 of 62 Quality Control Data 23-159-0034Report No: Project Description: Client ID:CES Group EL Morrison Lumber Co QC Prep Batch Method: Metals Analysis 6010D V34199,V34244QC Analytical Batch(es): Analysis Method: Analysis Description: 3050B QC Prep:V34145 Associated Lab Samples: 97895, 97896 LRB-V34145 Matrix: SOLLab Reagent Blank Parameter AnalyzedMQLMDLBlank ResultUnits 06/12/23 12:170.5000.170<0.170mg/KgChromium 06/09/23 15:540.3000.079<0.079mg/KgLead LCS-V34145Laboratory Control Sample Parameter LCS %RecLCS Result Spike Conc.Units % Rec Limits 11758.750.0mg/KgChromium 80-120 1165.785.00mg/KgLead 80-120 V 97915-MS-V34145 V 97915-MSD-V34145Matrix Spike & Matrix Spike Duplicate MS Result Parameter Max RPD MS %Rec MSD Result MSD Spike Conc. MS Spike Conc.ResultUnits %Rec Limits MSD %Rec RPD 120 10112250.050.069.7mg/KgChromium 105 75-125 1.6 20 18.9 34.0*16.75.005.0017.2mg/KgLead 0.0*75-125 12.3 20 V 97915-PDS-V34145Post Digestion Spike Parameter Analyzed% Recovery PDS ResultUnits 06/12/23 11:5196.0126mg/KgChromium 06/12/23 11:5111816.7mg/KgLead Page 1 of 34* QC Fail Date:06/16/2023 12:01 PM Page 27 of 62 Quality Control Data 23-159-0034Report No: Project Description: Client ID:CES Group EL Morrison Lumber Co QC Prep Batch Method: Volatile Organic Compounds - GC/MS 8260D V34217QC Analytical Batch(es): Analysis Method: Analysis Description: 5035 QC Prep:V34216 Associated Lab Samples: 97896 LRB-V34216 Matrix: SOLLab Reagent Blank Parameter AnalyzedMQLMDLBlank ResultUnits % Recovery % Rec Limits 06/09/23 11:590.0200.002<0.002mg/KgAcetone 06/09/23 11:590.0200.001<0.001mg/KgAcrolein 06/09/23 11:590.0200.0008<0.0008mg/KgAcrylonitrile 06/09/23 11:590.0050.0006<0.0006mg/KgBenzene 06/09/23 11:590.0050.0005<0.0005mg/KgBromobenzene 06/09/23 11:590.0050.0008<0.0008mg/KgBromochloromethane 06/09/23 11:590.0050.001<0.001mg/KgBromodichloromethane 06/09/23 11:590.0050.001<0.001mg/KgBromoform 06/09/23 11:590.0100.001<0.001mg/KgBromomethane 06/09/23 11:590.0050.0005<0.0005mg/Kgn-Butylbenzene 06/09/23 11:590.0050.0006<0.0006mg/Kgsec-Butyl benzene 06/09/23 11:590.0050.0005<0.0005mg/Kgtert-Butyl benzene 06/09/23 11:590.0050.0006<0.0006mg/KgCarbon Disulfide 06/09/23 11:590.0050.001<0.001mg/KgCarbon Tetrachloride 06/09/23 11:590.0050.0007<0.0007mg/KgChlorobenzene 06/09/23 11:590.0050.0009<0.0009mg/KgChlorodibromomethane 06/09/23 11:590.0100.0009<0.0009mg/KgChloroethane 06/09/23 11:590.0050.001<0.001mg/KgChloroform 06/09/23 11:590.0100.0006<0.0006mg/KgChloromethane 06/09/23 11:590.0050.0005<0.0005mg/Kg2-Chlorotoluene 06/09/23 11:590.0050.0004<0.0004mg/Kg4-Chlorotoluene 06/09/23 11:590.0050.0007<0.0007mg/KgDi-Isopropyl Ether (DIPE) 06/09/23 11:590.0100.0004<0.0004mg/Kg1,2-Dibromo-3-Chloropropane 06/09/23 11:590.0050.0006<0.0006mg/Kg1,2-Dibromoethane 06/09/23 11:590.0050.0006<0.0006mg/KgDibromomethane 06/09/23 11:590.0050.0003<0.0003mg/Kg1,2-Dichlorobenzene 06/09/23 11:590.0050.0004<0.0004mg/Kg1,3-Dichlorobenzene Page 2 of 34Date:06/16/2023 12:01 PM Page 28 of 62 Quality Control Data 23-159-0034Report No: Project Description: Client ID:CES Group EL Morrison Lumber Co QC Prep Batch Method: Volatile Organic Compounds - GC/MS 8260D V34217QC Analytical Batch(es): Analysis Method: Analysis Description: 5035 QC Prep:V34216 Associated Lab Samples: 97896 LRB-V34216 Matrix: SOLLab Reagent Blank Parameter AnalyzedMQLMDLBlank ResultUnits % Recovery % Rec Limits 06/09/23 11:590.0050.0006<0.0006mg/Kg1,4-Dichlorobenzene 06/09/23 11:590.0100.001<0.001mg/KgDichlorodifluoromethane 06/09/23 11:590.0050.0008<0.0008mg/Kg1,1-Dichloroethane 06/09/23 11:590.0050.001<0.001mg/Kg1,2-Dichloroethane 06/09/23 11:590.0050.0007<0.0007mg/Kg1,1-Dichloroethene 06/09/23 11:590.0050.0008<0.0008mg/Kgcis-1,2-Dichloroethene 06/09/23 11:590.0050.001<0.001mg/Kgtrans-1,2-Dichloroethene 06/09/23 11:590.0050.0004<0.0004mg/Kg1,2-Dichloropropane 06/09/23 11:590.0050.0006<0.0006mg/Kg1,3-Dichloropropane 06/09/23 11:590.0050.001<0.001mg/Kg2,2-Dichloropropane 06/09/23 11:590.0050.0008<0.0008mg/Kg1,1-Dichloropropene 06/09/23 11:590.0050.0005<0.0005mg/Kgcis-1,3-Dichloropropene 06/09/23 11:590.0050.0008<0.0008mg/Kgtrans-1,3-Dichloropropene 06/09/23 11:590.0050.0006<0.0006mg/KgEthylbenzene 06/09/23 11:590.0500.0008<0.0008mg/KgEthyl Tertiary Butyl Ether (ETBE) 06/09/23 11:590.0100.0008<0.0008mg/KgHexachlorobutadiene 06/09/23 11:590.0100.0007<0.0007mg/Kgn-Hexane 06/09/23 11:590.0200.0006<0.0006mg/Kg2-Hexanone 06/09/23 11:590.0050.0005<0.0005mg/KgIsopropylbenzene 06/09/23 11:590.0050.001<0.001mg/Kg4-Isopropyl toluene 06/09/23 11:590.0200.0007<0.0007mg/KgMethyl Ethyl Ketone (MEK) 06/09/23 11:590.0050.0006<0.0006mg/KgMethyl tert-butyl ether (MTBE) 06/09/23 11:590.0200.015<0.015mg/Kg4-Methyl-2-Pentanone 06/09/23 11:590.0100.0010.002mg/KgMethylene Chloride 06/09/23 11:590.0100.0010<0.0010mg/KgNaphthalene 06/09/23 11:590.0050.0005<0.0005mg/Kgn-Propylbenzene 06/09/23 11:590.0050.001<0.001mg/KgStyrene Page 3 of 34Date:06/16/2023 12:01 PM Page 29 of 62 Quality Control Data 23-159-0034Report No: Project Description: Client ID:CES Group EL Morrison Lumber Co QC Prep Batch Method: Volatile Organic Compounds - GC/MS 8260D V34217QC Analytical Batch(es): Analysis Method: Analysis Description: 5035 QC Prep:V34216 Associated Lab Samples: 97896 LRB-V34216 Matrix: SOLLab Reagent Blank Parameter AnalyzedMQLMDLBlank ResultUnits % Recovery % Rec Limits 06/09/23 11:590.0050.001<0.001mg/Kg1,1,1,2-Tetrachloroethane 06/09/23 11:590.0050.0003<0.0003mg/Kg1,1,2,2-Tetrachloroethane 06/09/23 11:590.0050.0009<0.0009mg/KgTetrachloroethene 06/09/23 11:590.0050.0007<0.0007mg/KgToluene 06/09/23 11:590.0100.0005<0.0005mg/Kg1,2,3-Trichlorobenzene 06/09/23 11:590.0100.0006<0.0006mg/Kg1,2,4-Trichlorobenzene 06/09/23 11:590.0050.001<0.001mg/Kg1,1,1-Trichloroethane 06/09/23 11:590.0050.0005<0.0005mg/Kg1,1,2-Trichloroethane 06/09/23 11:590.0050.0009<0.0009mg/KgTrichloroethene 06/09/23 11:590.0100.002<0.002mg/KgTrichlorofluoromethane 06/09/23 11:590.0050.0007<0.0007mg/Kg1,2,3-Trichloropropane 06/09/23 11:590.0050.0005<0.0005mg/Kg1,2,4-Trimethylbenzene 06/09/23 11:590.0050.0005<0.0005mg/Kg1,3,5-Trimethylbenzene 06/09/23 11:590.0100.0005<0.0005mg/KgVinyl Acetate 06/09/23 11:590.0100.0005<0.0005mg/KgVinyl Chloride 06/09/23 11:590.0050.0005<0.0005mg/Kgo-Xylene 06/09/23 11:590.0100.001<0.001mg/Kgm,p-Xylene 06/09/23 11:594-Bromofluorobenzene (S)103 70-130 06/09/23 11:59Dibromofluoromethane (S)105 84-123 06/09/23 11:59Toluene-d8 (S)98.2 76-129 LCS-V34216Laboratory Control Sample Parameter LCS %RecLCS Result Spike Conc.Units % Rec Limits 94.70.0940.100mg/KgAcetone 29-198 137*0.1370.100mg/KgAcrylonitrile 65-134 1000.0500.050mg/KgBenzene 74-127 Page 4 of 34* QC Fail Date:06/16/2023 12:01 PM Page 30 of 62 Quality Control Data 23-159-0034Report No: Project Description: Client ID:CES Group EL Morrison Lumber Co QC Prep Batch Method: Volatile Organic Compounds - GC/MS 8260D V34217QC Analytical Batch(es): Analysis Method: Analysis Description: 5035 QC Prep:V34216 LCS-V34216Laboratory Control Sample Parameter LCS %RecLCS Result Spike Conc.Units % Rec Limits 96.80.0480.050mg/KgBromobenzene 73-125 1010.0500.050mg/KgBromochloromethane 72-134 1030.0510.050mg/KgBromodichloromethane 75-122 1020.0510.050mg/KgBromoform 66-135 83.00.0410.050mg/KgBromomethane 20-180 1020.0510.050mg/Kgn-Butylbenzene 65-135 98.60.0490.050mg/Kgsec-Butyl benzene 66-131 98.00.0490.050mg/Kgtert-Butyl benzene 67-132 1030.0510.050mg/KgCarbon Disulfide 61-129 99.80.0490.050mg/KgCarbon Tetrachloride 64-143 96.80.0480.050mg/KgChlorobenzene 74-118 1020.0510.050mg/KgChlorodibromomethane 73-122 99.00.0490.050mg/KgChloroethane 33-149 1020.0510.050mg/KgChloroform 73-127 80.40.0400.050mg/KgChloromethane 45-143 97.80.0480.050mg/Kg2-Chlorotoluene 67-124 97.80.0480.050mg/Kg4-Chlorotoluene 71-126 1000.0500.050mg/KgDi-Isopropyl Ether (DIPE)59-159 1050.0520.050mg/Kg1,2-Dibromo-3-Chloropropane 55-157 1010.0500.050mg/Kg1,2-Dibromoethane 70-132 1040.0510.050mg/KgDibromomethane 74-133 1010.0500.050mg/Kg1,2-Dichlorobenzene 72-123 1000.0500.050mg/Kg1,3-Dichlorobenzene 71-120 98.20.0490.050mg/Kg1,4-Dichlorobenzene 71-123 91.80.0450.050mg/KgDichlorodifluoromethane 26-146 1010.0500.050mg/Kg1,1-Dichloroethane 74-127 98.40.0490.050mg/Kg1,2-Dichloroethane 68-128 Page 5 of 34Date:06/16/2023 12:01 PM Page 31 of 62 Quality Control Data 23-159-0034Report No: Project Description: Client ID:CES Group EL Morrison Lumber Co QC Prep Batch Method: Volatile Organic Compounds - GC/MS 8260D V34217QC Analytical Batch(es): Analysis Method: Analysis Description: 5035 QC Prep:V34216 LCS-V34216Laboratory Control Sample Parameter LCS %RecLCS Result Spike Conc.Units % Rec Limits 1000.0500.050mg/Kg1,1-Dichloroethene 67-149 1000.0500.050mg/Kgcis-1,2-Dichloroethene 76-134 1000.0500.050mg/Kgtrans-1,2-Dichloroethene 73-132 99.80.0490.050mg/Kg1,2-Dichloropropane 73-130 1010.0500.050mg/Kg1,3-Dichloropropane 75-124 1010.0500.050mg/Kg2,2-Dichloropropane 50-142 1010.0500.050mg/Kg1,1-Dichloropropene 71-130 1030.0510.050mg/Kgcis-1,3-Dichloropropene 71-125 1080.0540.050mg/Kgtrans-1,3-Dichloropropene 68-123 96.20.0480.050mg/KgEthylbenzene 74-128 1010.1010.100mg/KgEthyl Tertiary Butyl Ether (ETBE)70-130 93.60.0460.050mg/KgHexachlorobutadiene 64-125 1030.0510.050mg/Kgn-Hexane 70-130 1020.0510.050mg/Kg2-Hexanone 61-157 97.60.0480.050mg/KgIsopropylbenzene 68-126 99.80.0490.050mg/Kg4-Isopropyl toluene 68-129 86.60.0430.050mg/KgMethyl Ethyl Ketone (MEK)63-149 99.20.0490.050mg/KgMethyl tert-butyl ether (MTBE)70-130 1070.0530.050mg/Kg4-Methyl-2-Pentanone 57-162 95.80.0470.050mg/KgMethylene Chloride 74-129 1010.0500.050mg/KgNaphthalene 57-157 97.60.0480.050mg/Kgn-Propylbenzene 67-130 1030.0510.050mg/KgStyrene 77-121 99.40.0490.050mg/Kg1,1,1,2-Tetrachloroethane 72-115 1000.0500.050mg/Kg1,1,2,2-Tetrachloroethane 56-126 1000.0500.050mg/KgTetrachloroethene 68-130 99.40.0490.050mg/KgToluene 71-129 Page 6 of 34Date:06/16/2023 12:01 PM Page 32 of 62 Quality Control Data 23-159-0034Report No: Project Description: Client ID:CES Group EL Morrison Lumber Co QC Prep Batch Method: Volatile Organic Compounds - GC/MS 8260D V34217QC Analytical Batch(es): Analysis Method: Analysis Description: 5035 QC Prep:V34216 LCS-V34216Laboratory Control Sample Parameter LCS %RecLCS Result Spike Conc.Units % Rec Limits 1010.0500.050mg/Kg1,2,3-Trichlorobenzene 68-130 1010.0500.050mg/Kg1,2,4-Trichlorobenzene 66-125 1000.0500.050mg/Kg1,1,1-Trichloroethane 67-131 98.20.0490.050mg/Kg1,1,2-Trichloroethane 70-133 99.80.0490.050mg/KgTrichloroethene 75-133 88.80.0440.050mg/KgTrichlorofluoromethane 44-146 1030.0510.050mg/Kg1,2,3-Trichloropropane 60-137 1000.0500.050mg/Kg1,2,4-Trimethylbenzene 69-129 99.00.0490.050mg/Kg1,3,5-Trimethylbenzene 69-128 1260.0630.050mg/KgVinyl Acetate 60-140 1030.0510.050mg/KgVinyl Chloride 48-147 98.40.0490.050mg/Kgo-Xylene 74-126 97.40.0970.100mg/Kgm,p-Xylene 75-124 1024-Bromofluorobenzene (S)70-130 106Dibromofluoromethane (S)84-123 100Toluene-d8 (S)76-129 V 97915-MS-V34216 V 97915-MSD-V34216Matrix Spike & Matrix Spike Duplicate MS Result Parameter Max RPD MS %Rec MSD Result MSD Spike Conc. MS Spike Conc.ResultUnits %Rec Limits MSD %Rec RPD 0.044 41.00.0410.1000.1000.003mg/KgAcetone 38.0 34-143 6.9 49 0.015 15.1*0.0130.1000.100<0.001mg/KgAcrolein 13.3*70-130 12.6 20 0.082 82.90.0780.1000.100<0.0008mg/KgAcrylonitrile 78.5 65-134 5.4 30 0.035 71.80.0380.0500.050<0.0006mg/KgBenzene 76.6 60-135 6.4 20 0.025 50.00.0240.0500.050<0.0005mg/KgBromobenzene 49.6 45-135 0.8 25 0.037 75.40.0400.0500.050<0.0008mg/KgBromochloromethane 81.8 55-136 8.1 18 Page 7 of 34* QC Fail Date:06/16/2023 12:01 PM Page 33 of 62 Quality Control Data 23-159-0034Report No: Project Description: Client ID:CES Group EL Morrison Lumber Co QC Prep Batch Method: Volatile Organic Compounds - GC/MS 8260D V34217QC Analytical Batch(es): Analysis Method: Analysis Description: 5035 QC Prep:V34216 V 97915-MS-V34216 V 97915-MSD-V34216Matrix Spike & Matrix Spike Duplicate MS Result Parameter Max RPD MS %Rec MSD Result MSD Spike Conc. MS Spike Conc.ResultUnits %Rec Limits MSD %Rec RPD 0.034 68.40.0360.0500.050<0.001mg/KgBromodichloromethane 72.4 55-127 5.6 17 0.029 58.00.0310.0500.050<0.001mg/KgBromoform 62.2 40-136 6.9 35 0.018 36.60.0240.0500.050<0.001mg/KgBromomethane 48.2 30-137 27.3 30 0.016 33.60.0170.0500.050<0.0005mg/Kgn-Butylbenzene 35.0 23-148 4.0 39 0.019 39.40.0200.0500.050<0.0006mg/Kgsec-Butyl benzene 41.6 34-144 5.4 28 0.022 45.60.0220.0500.050<0.0005mg/Kgtert-Butyl benzene 45.6 36-150 0.0 29 0.037 74.80.0320.0500.050<0.0006mg/KgCarbon Disulfide 64.6 49-139 14.6 26 0.032 65.60.0340.0500.050<0.001mg/KgCarbon Tetrachloride 69.6 48-153 5.9 23 0.027 55.8*0.0290.0500.050<0.0007mg/KgChlorobenzene 58.4 57-125 4.5 14 0.031 63.60.0320.0500.050<0.0009mg/KgChlorodibromomethane 65.8 49-127 3.4 24 0.035 71.20.0360.0500.050<0.0009mg/KgChloroethane 72.0 16-177 1.1 47 0.036 73.80.0380.0500.050<0.001mg/KgChloroform 77.4 56-137 4.7 18 0.022 44.40.0290.0500.050<0.0006mg/KgChloromethane 59.6 40-145 29.2*26 0.023 46.40.0230.0500.050<0.0005mg/Kg2-Chlorotoluene 47.0 46-132 1.2 29 0.023 46.40.0230.0500.050<0.0004mg/Kg4-Chlorotoluene 47.0 44-135 1.2 23 0.038 77.20.0340.0500.050<0.0007mg/KgDi-Isopropyl Ether (DIPE)68.8 51-155 11.5 13 0.025 50.60.0270.0500.050<0.0004mg/Kg1,2-Dibromo-3-Chloropropane 54.6 27-132 7.6 25 0.034 68.20.0350.0500.050<0.0006mg/Kg1,2-Dibromoethane 70.8 49-132 3.7 15 0.036 73.80.0380.0500.050<0.0006mg/KgDibromomethane 77.6 59-133 5.0 15 0.020 40.8*0.0210.0500.050<0.0003mg/Kg1,2-Dichlorobenzene 42.2 42-130 3.3 21 0.020 40.8*0.0200.0500.050<0.0004mg/Kg1,3-Dichlorobenzene 41.6 41-129 1.9 24 0.020 40.6*0.0200.0500.050<0.0006mg/Kg1,4-Dichlorobenzene 40.8*44-134 0.4 21 0.033 67.00.0340.0500.050<0.001mg/KgDichlorodifluoromethane 69.0 25-151 2.9 37 0.038 76.80.0350.0500.050<0.0008mg/Kg1,1-Dichloroethane 70.2 59-137 8.9 21 0.036 72.40.0370.0500.050<0.001mg/Kg1,2-Dichloroethane 75.6 51-131 4.3 13 0.037 75.60.0330.0500.050<0.0007mg/Kg1,1-Dichloroethene 66.4 54-162 12.9 22 Page 8 of 34* QC Fail Date:06/16/2023 12:01 PM Page 34 of 62 Quality Control Data 23-159-0034Report No: Project Description: Client ID:CES Group EL Morrison Lumber Co QC Prep Batch Method: Volatile Organic Compounds - GC/MS 8260D V34217QC Analytical Batch(es): Analysis Method: Analysis Description: 5035 QC Prep:V34216 V 97915-MS-V34216 V 97915-MSD-V34216Matrix Spike & Matrix Spike Duplicate MS Result Parameter Max RPD MS %Rec MSD Result MSD Spike Conc. MS Spike Conc.ResultUnits %Rec Limits MSD %Rec RPD 0.037 75.40.0390.0500.050<0.0008mg/Kgcis-1,2-Dichloroethene 78.4 58-140 3.9 28 0.037 74.20.0330.0500.050<0.001mg/Kgtrans-1,2-Dichloroethene 67.4 57-141 9.6 18 0.035 71.40.0370.0500.050<0.0004mg/Kg1,2-Dichloropropane 75.6 55-138 5.7 16 0.034 68.60.0360.0500.050<0.0006mg/Kg1,3-Dichloropropane 72.0 53-129 4.8 15 0.035 71.20.0360.0500.050<0.001mg/Kg2,2-Dichloropropane 73.8 30-147 3.5 20 0.032 65.60.0340.0500.050<0.0008mg/Kg1,1-Dichloropropene 69.0 55-137 5.0 19 0.034 68.60.0350.0500.050<0.0005mg/Kgcis-1,3-Dichloropropene 71.6 42-135 4.2 32 0.034 69.80.0350.0500.050<0.0008mg/Kgtrans-1,3-Dichloropropene 71.4 41-124 2.2 20 0.026 53.80.0280.0500.050<0.0006mg/KgEthylbenzene 56.6 44-144 5.0 19 0.079 79.20.0790.1000.100<0.0008mg/KgEthyl Tertiary Butyl Ether (ETBE)79.8 70-130 0.7 20 0.011 22.8*0.0120.0500.050<0.0008mg/KgHexachlorobutadiene 25.2*30-126 10.0 26 0.022 45.2*0.0200.0500.050<0.0007mg/Kgn-Hexane 40.2*70-130 11.7 20 0.022 45.40.0240.0500.050<0.0006mg/Kg2-Hexanone 48.0 30-147 5.5 42 0.025 50.20.0250.0500.050<0.0005mg/KgIsopropylbenzene 50.2 41-140 0.0 27 0.019 39.40.0200.0500.050<0.001mg/Kg4-Isopropyl toluene 41.2 32-144 4.4 22 0.022 40.50.0240.0500.0500.002mg/KgMethyl Ethyl Ketone (MEK)44.7 24-160 8.9 42 0.039 79.00.0340.0500.050<0.0006mg/KgMethyl tert-butyl ether (MTBE)68.2 49-135 14.6 22 0.033 66.60.0360.0500.050<0.015mg/Kg4-Methyl-2-Pentanone 72.0 25-163 7.7 44 0.041 83.80.0350.0500.050<0.001mg/KgMethylene Chloride 71.6 53-144 15.7*14 0.015 31.6*0.0160.0500.050<0.0010mg/KgNaphthalene 33.2 32-127 4.9 44 0.023 46.00.0220.0500.050<0.0005mg/Kgn-Propylbenzene 45.6 35-144 0.8 27 0.027 55.60.0280.0500.050<0.001mg/KgStyrene 57.8 42-132 3.8 28 0.031 62.00.0320.0500.050<0.001mg/Kg1,1,1,2-Tetrachloroethane 64.4 60-120 3.7 15 0.027 55.80.0280.0500.050<0.0003mg/Kg1,1,2,2-Tetrachloroethane 57.8 39-135 3.5 22 0.026 53.80.0280.0500.050<0.0009mg/KgTetrachloroethene 56.8 47-142 5.4 26 0.032 64.40.0330.0500.050<0.0007mg/KgToluene 67.4 57-135 4.5 22 Page 9 of 34* QC Fail Date:06/16/2023 12:01 PM Page 35 of 62 Quality Control Data 23-159-0034Report No: Project Description: Client ID:CES Group EL Morrison Lumber Co QC Prep Batch Method: Volatile Organic Compounds - GC/MS 8260D V34217QC Analytical Batch(es): Analysis Method: Analysis Description: 5035 QC Prep:V34216 V 97915-MS-V34216 V 97915-MSD-V34216Matrix Spike & Matrix Spike Duplicate MS Result Parameter Max RPD MS %Rec MSD Result MSD Spike Conc. MS Spike Conc.ResultUnits %Rec Limits MSD %Rec RPD 0.012 24.2*0.0120.0500.050<0.0005mg/Kg1,2,3-Trichlorobenzene 25.2*34-120 4.0 41 0.013 26.0*0.0130.0500.050<0.0006mg/Kg1,2,4-Trichlorobenzene 26.4*35-116 1.5 62 0.034 69.40.0370.0500.050<0.001mg/Kg1,1,1-Trichloroethane 74.0 52-139 6.4 21 0.034 68.60.0350.0500.050<0.0005mg/Kg1,1,2-Trichloroethane 70.6 44-140 2.8 21 0.033 67.20.0340.0500.050<0.0009mg/KgTrichloroethene 69.8 38-164 3.7 18 0.031 62.00.0320.0500.050<0.002mg/KgTrichlorofluoromethane 64.2 30-157 3.4 27 0.030 61.80.0310.0500.050<0.0007mg/Kg1,2,3-Trichloropropane 63.6 45-139 2.8 25 0.022 44.60.0230.0500.050<0.0005mg/Kg1,2,4-Trimethylbenzene 46.4 38-142 3.9 24 0.022 45.80.0230.0500.050<0.0005mg/Kg1,3,5-Trimethylbenzene 46.6 44-140 1.7 29 0.009 18.5*0.0080.0500.050<0.0005mg/KgVinyl Acetate 17.7*61-154 4.8 35 0.037 74.60.0410.0500.050<0.0005mg/KgVinyl Chloride 82.8 40-156 10.4 35 0.027 54.60.0270.0500.050<0.0005mg/Kgo-Xylene 54.8 43-143 0.3 17 0.053 53.90.0560.1000.100<0.001mg/Kgm,p-Xylene 56.5 36-148 4.7 20 1044-Bromofluorobenzene (S)101 70-130 103Dibromofluoromethane (S)104 84-123 102Toluene-d8 (S)100 76-129 Page 10 of 34* QC Fail Date:06/16/2023 12:01 PM Page 36 of 62 Quality Control Data 23-159-0034Report No: Project Description: Client ID:CES Group EL Morrison Lumber Co QC Prep Batch Method: Volatile Organic Compounds - GC/MS 8260D V34278QC Analytical Batch(es): Analysis Method: Analysis Description: 5035 QC Prep:V34277 Associated Lab Samples: 97895 LRB-V34277 Matrix: SOLLab Reagent Blank Parameter AnalyzedMQLMDLBlank ResultUnits % Recovery % Rec Limits 06/12/23 11:020.0200.002<0.002mg/KgAcetone 06/12/23 11:020.0200.001<0.001mg/KgAcrolein 06/12/23 11:020.0200.0008<0.0008mg/KgAcrylonitrile 06/12/23 11:020.0050.0006<0.0006mg/KgBenzene 06/12/23 11:020.0050.0005<0.0005mg/KgBromobenzene 06/12/23 11:020.0050.0008<0.0008mg/KgBromochloromethane 06/12/23 11:020.0050.001<0.001mg/KgBromodichloromethane 06/12/23 11:020.0050.001<0.001mg/KgBromoform 06/12/23 11:020.0100.001<0.001mg/KgBromomethane 06/12/23 11:020.0050.0005<0.0005mg/Kgn-Butylbenzene 06/12/23 11:020.0050.0006<0.0006mg/Kgsec-Butyl benzene 06/12/23 11:020.0050.0005<0.0005mg/Kgtert-Butyl benzene 06/12/23 11:020.0050.0006<0.0006mg/KgCarbon Disulfide 06/12/23 11:020.0050.001<0.001mg/KgCarbon Tetrachloride 06/12/23 11:020.0050.0007<0.0007mg/KgChlorobenzene 06/12/23 11:020.0050.0009<0.0009mg/KgChlorodibromomethane 06/12/23 11:020.0100.0009<0.0009mg/KgChloroethane 06/12/23 11:020.0050.001<0.001mg/KgChloroform 06/12/23 11:020.0100.0006<0.0006mg/KgChloromethane 06/12/23 11:020.0050.0005<0.0005mg/Kg2-Chlorotoluene 06/12/23 11:020.0050.0004<0.0004mg/Kg4-Chlorotoluene 06/12/23 11:020.0050.0007<0.0007mg/KgDi-Isopropyl Ether (DIPE) 06/12/23 11:020.0100.0004<0.0004mg/Kg1,2-Dibromo-3-Chloropropane 06/12/23 11:020.0050.0006<0.0006mg/Kg1,2-Dibromoethane 06/12/23 11:020.0050.0006<0.0006mg/KgDibromomethane 06/12/23 11:020.0050.0003<0.0003mg/Kg1,2-Dichlorobenzene 06/12/23 11:020.0050.0004<0.0004mg/Kg1,3-Dichlorobenzene Page 11 of 34Date:06/16/2023 12:01 PM Page 37 of 62 Quality Control Data 23-159-0034Report No: Project Description: Client ID:CES Group EL Morrison Lumber Co QC Prep Batch Method: Volatile Organic Compounds - GC/MS 8260D V34278QC Analytical Batch(es): Analysis Method: Analysis Description: 5035 QC Prep:V34277 Associated Lab Samples: 97895 LRB-V34277 Matrix: SOLLab Reagent Blank Parameter AnalyzedMQLMDLBlank ResultUnits % Recovery % Rec Limits 06/12/23 11:020.0050.0006<0.0006mg/Kg1,4-Dichlorobenzene 06/12/23 11:020.0100.001<0.001mg/KgDichlorodifluoromethane 06/12/23 11:020.0050.0008<0.0008mg/Kg1,1-Dichloroethane 06/12/23 11:020.0050.001<0.001mg/Kg1,2-Dichloroethane 06/12/23 11:020.0050.0007<0.0007mg/Kg1,1-Dichloroethene 06/12/23 11:020.0050.0008<0.0008mg/Kgcis-1,2-Dichloroethene 06/12/23 11:020.0050.001<0.001mg/Kgtrans-1,2-Dichloroethene 06/12/23 11:020.0050.0004<0.0004mg/Kg1,2-Dichloropropane 06/12/23 11:020.0050.0006<0.0006mg/Kg1,3-Dichloropropane 06/12/23 11:020.0050.001<0.001mg/Kg2,2-Dichloropropane 06/12/23 11:020.0050.0008<0.0008mg/Kg1,1-Dichloropropene 06/12/23 11:020.0050.0005<0.0005mg/Kgcis-1,3-Dichloropropene 06/12/23 11:020.0050.0008<0.0008mg/Kgtrans-1,3-Dichloropropene 06/12/23 11:020.0050.0006<0.0006mg/KgEthylbenzene 06/12/23 11:020.0500.0008<0.0008mg/KgEthyl Tertiary Butyl Ether (ETBE) 06/12/23 11:020.0100.0008<0.0008mg/KgHexachlorobutadiene 06/12/23 11:020.0100.00070.001mg/Kgn-Hexane 06/12/23 11:020.0200.0006<0.0006mg/Kg2-Hexanone 06/12/23 11:020.0050.0005<0.0005mg/KgIsopropylbenzene 06/12/23 11:020.0050.001<0.001mg/Kg4-Isopropyl toluene 06/12/23 11:020.0200.0007<0.0007mg/KgMethyl Ethyl Ketone (MEK) 06/12/23 11:020.0050.0006<0.0006mg/KgMethyl tert-butyl ether (MTBE) 06/12/23 11:020.0200.015<0.015mg/Kg4-Methyl-2-Pentanone 06/12/23 11:020.0100.0010.003mg/KgMethylene Chloride 06/12/23 11:020.0100.0010<0.0010mg/KgNaphthalene 06/12/23 11:020.0050.0005<0.0005mg/Kgn-Propylbenzene 06/12/23 11:020.0050.001<0.001mg/KgStyrene Page 12 of 34Date:06/16/2023 12:01 PM Page 38 of 62 Quality Control Data 23-159-0034Report No: Project Description: Client ID:CES Group EL Morrison Lumber Co QC Prep Batch Method: Volatile Organic Compounds - GC/MS 8260D V34278QC Analytical Batch(es): Analysis Method: Analysis Description: 5035 QC Prep:V34277 Associated Lab Samples: 97895 LRB-V34277 Matrix: SOLLab Reagent Blank Parameter AnalyzedMQLMDLBlank ResultUnits % Recovery % Rec Limits 06/12/23 11:020.0050.001<0.001mg/Kg1,1,1,2-Tetrachloroethane 06/12/23 11:020.0050.0003<0.0003mg/Kg1,1,2,2-Tetrachloroethane 06/12/23 11:020.0050.0009<0.0009mg/KgTetrachloroethene 06/12/23 11:020.0050.0007<0.0007mg/KgToluene 06/12/23 11:020.0100.0005<0.0005mg/Kg1,2,3-Trichlorobenzene 06/12/23 11:020.0100.0006<0.0006mg/Kg1,2,4-Trichlorobenzene 06/12/23 11:020.0050.001<0.001mg/Kg1,1,1-Trichloroethane 06/12/23 11:020.0050.0005<0.0005mg/Kg1,1,2-Trichloroethane 06/12/23 11:020.0050.0009<0.0009mg/KgTrichloroethene 06/12/23 11:020.0100.002<0.002mg/KgTrichlorofluoromethane 06/12/23 11:020.0050.0007<0.0007mg/Kg1,2,3-Trichloropropane 06/12/23 11:020.0050.0005<0.0005mg/Kg1,2,4-Trimethylbenzene 06/12/23 11:020.0050.0005<0.0005mg/Kg1,3,5-Trimethylbenzene 06/12/23 11:020.0100.0005<0.0005mg/KgVinyl Acetate 06/12/23 11:020.0100.0005<0.0005mg/KgVinyl Chloride 06/12/23 11:020.0050.0005<0.0005mg/Kgo-Xylene 06/12/23 11:020.0100.001<0.001mg/Kgm,p-Xylene 06/12/23 11:024-Bromofluorobenzene (S)111 70-130 06/12/23 11:02Dibromofluoromethane (S)103 84-123 06/12/23 11:02Toluene-d8 (S)98.4 76-129 LCS-V34277 LCSD-V34277Laboratory Control Sample & LCSD LCSD ResultParameter Max RPD LCSD % Rec LCS %Rec LCS Result Spike Conc.Units % Rec Limits RPD 0.120 1201090.1090.100mg/KgAcetone 29-198 9.6 20 0.128 1281260.1260.100mg/KgAcrolein 70-130 1.5 20 Page 13 of 34Date:06/16/2023 12:01 PM Page 39 of 62 Quality Control Data 23-159-0034Report No: Project Description: Client ID:CES Group EL Morrison Lumber Co QC Prep Batch Method: Volatile Organic Compounds - GC/MS 8260D V34278QC Analytical Batch(es): Analysis Method: Analysis Description: 5035 QC Prep:V34277 LCS-V34277 LCSD-V34277Laboratory Control Sample & LCSD LCSD ResultParameter Max RPD LCSD % Rec LCS %Rec LCS Result Spike Conc.Units % Rec Limits RPD 0.127 1271180.1180.100mg/KgAcrylonitrile 65-134 7.3 20 0.050 1001020.0510.050mg/KgBenzene 74-127 2.3 20 0.048 97.293.80.0460.050mg/KgBromobenzene 73-125 3.5 20 0.052 1051050.0520.050mg/KgBromochloromethane 72-134 0.0 20 0.051 1031020.0510.050mg/KgBromodichloromethane 75-122 0.5 20 0.057 1161020.0500.050mg/KgBromoform 66-135 12.8 20 0.048 96.484.80.0420.050mg/KgBromomethane 20-180 12.8 20 0.049 99.81060.0530.050mg/Kgn-Butylbenzene 65-135 6.2 20 0.047 95.81020.0510.050mg/Kgsec-Butyl benzene 66-131 6.2 20 0.047 95.81020.0510.050mg/Kgtert-Butyl benzene 67-132 6.2 20 0.050 1011000.0500.050mg/KgCarbon Disulfide 61-129 0.7 20 0.049 98.41020.0510.050mg/KgCarbon Tetrachloride 64-143 3.9 20 0.049 98.41020.0500.050mg/KgChlorobenzene 74-118 3.2 20 0.053 1071050.0520.050mg/KgChlorodibromomethane 73-122 1.6 20 0.045 91.691.00.0450.050mg/KgChloroethane 33-149 0.6 20 0.050 1011030.0510.050mg/KgChloroform 73-127 2.1 20 0.040 81.482.00.0410.050mg/KgChloromethane 45-143 0.7 20 0.047 95.894.60.0470.050mg/Kg2-Chlorotoluene 67-124 1.2 20 0.047 95.894.60.0470.050mg/Kg4-Chlorotoluene 71-126 1.2 20 0.049 98.298.60.0490.050mg/KgDi-Isopropyl Ether (DIPE)59-159 0.4 20 0.058 1171150.0570.050mg/Kg1,2-Dibromo-3-Chloropropane 55-157 1.8 20 0.053 1081040.0520.050mg/Kg1,2-Dibromoethane 70-132 3.5 20 0.054 1091070.0530.050mg/KgDibromomethane 74-133 1.6 20 0.050 1001030.0510.050mg/Kg1,2-Dichlorobenzene 72-123 2.5 20 0.049 99.41030.0510.050mg/Kg1,3-Dichlorobenzene 71-120 3.5 20 0.049 98.61030.0510.050mg/Kg1,4-Dichlorobenzene 71-123 3.9 20 Page 14 of 34Date:06/16/2023 12:01 PM Page 40 of 62 Quality Control Data 23-159-0034Report No: Project Description: Client ID:CES Group EL Morrison Lumber Co QC Prep Batch Method: Volatile Organic Compounds - GC/MS 8260D V34278QC Analytical Batch(es): Analysis Method: Analysis Description: 5035 QC Prep:V34277 LCS-V34277 LCSD-V34277Laboratory Control Sample & LCSD LCSD ResultParameter Max RPD LCSD % Rec LCS %Rec LCS Result Spike Conc.Units % Rec Limits RPD 0.042 84.489.80.0440.050mg/KgDichlorodifluoromethane 26-146 6.1 20 0.049 98.81010.0500.050mg/Kg1,1-Dichloroethane 74-127 2.5 20 0.050 1011010.0500.050mg/Kg1,2-Dichloroethane 68-128 0.0 20 0.048 97.496.40.0480.050mg/Kg1,1-Dichloroethene 67-149 1.0 20 0.050 1011030.0510.050mg/Kgcis-1,2-Dichloroethene 76-134 1.7 20 0.049 98.81040.0520.050mg/Kgtrans-1,2-Dichloroethene 73-132 5.5 20 0.050 1021010.0500.050mg/Kg1,2-Dichloropropane 73-130 0.7 20 0.050 1011030.0510.050mg/Kg1,3-Dichloropropane 75-124 1.9 20 0.049 98.01030.0510.050mg/Kg2,2-Dichloropropane 50-142 4.7 20 0.048 97.21040.0510.050mg/Kg1,1-Dichloropropene 71-130 6.5 20 0.052 1051060.0520.050mg/Kgcis-1,3-Dichloropropene 71-125 0.9 20 0.054 1101100.0540.050mg/Kgtrans-1,3-Dichloropropene 68-123 0.1 20 0.048 96.499.60.0490.050mg/KgEthylbenzene 74-128 3.2 20 0.102 10299.60.0990.100mg/KgEthyl Tertiary Butyl Ether (ETBE)70-130 2.3 20 0.051 1031080.0530.050mg/KgHexachlorobutadiene 64-125 4.9 20 0.050 1021060.0530.050mg/Kgn-Hexane 70-130 4.2 20 0.065 1301240.0620.050mg/Kg2-Hexanone 61-157 4.4 20 0.047 95.496.80.0480.050mg/KgIsopropylbenzene 68-126 1.4 20 0.049 98.01050.0520.050mg/Kg4-Isopropyl toluene 68-129 7.0 20 0.057 1141060.0520.050mg/KgMethyl Ethyl Ketone (MEK)63-149 8.0 20 0.052 1041010.0500.050mg/KgMethyl tert-butyl ether (MTBE)70-130 2.7 20 0.059 1191120.0550.050mg/Kg4-Methyl-2-Pentanone 57-162 6.0 20 0.046 92.094.00.0470.050mg/KgMethylene Chloride 74-129 2.1 20 0.051 1021010.0500.050mg/KgNaphthalene 57-157 0.7 20 0.048 97.496.20.0480.050mg/Kgn-Propylbenzene 67-130 1.2 20 0.053 1081020.0500.050mg/KgStyrene 77-121 5.5 20 Page 15 of 34Date:06/16/2023 12:01 PM Page 41 of 62 Quality Control Data 23-159-0034Report No: Project Description: Client ID:CES Group EL Morrison Lumber Co QC Prep Batch Method: Volatile Organic Compounds - GC/MS 8260D V34278QC Analytical Batch(es): Analysis Method: Analysis Description: 5035 QC Prep:V34277 LCS-V34277 LCSD-V34277Laboratory Control Sample & LCSD LCSD ResultParameter Max RPD LCSD % Rec LCS %Rec LCS Result Spike Conc.Units % Rec Limits RPD 0.051 1041010.0500.050mg/Kg1,1,1,2-Tetrachloroethane 72-115 2.9 20 0.051 10295.60.0470.050mg/Kg1,1,2,2-Tetrachloroethane 56-126 6.8 20 0.049 98.61020.0510.050mg/KgTetrachloroethene 68-130 3.5 20 0.049 99.81030.0510.050mg/KgToluene 71-129 2.9 20 0.050 1021020.0510.050mg/Kg1,2,3-Trichlorobenzene 68-130 0.3 20 0.053 1061060.0530.050mg/Kg1,2,4-Trichlorobenzene 66-125 0.3 20 0.048 97.21030.0510.050mg/Kg1,1,1-Trichloroethane 67-131 5.4 20 0.051 1041040.0510.050mg/Kg1,1,2-Trichloroethane 70-133 0.1 20 0.049 98.41030.0510.050mg/KgTrichloroethene 75-133 4.7 20 0.044 88.087.60.0430.050mg/KgTrichlorofluoromethane 44-146 0.4 20 0.053 10798.60.0490.050mg/Kg1,2,3-Trichloropropane 60-137 8.3 20 0.049 98.61040.0510.050mg/Kg1,2,4-Trimethylbenzene 69-129 4.9 20 0.049 98.097.40.0480.050mg/Kg1,3,5-Trimethylbenzene 69-128 0.6 20 0.061 1231220.0600.050mg/KgVinyl Acetate 60-140 0.8 20 0.046 92.296.00.0480.050mg/KgVinyl Chloride 48-147 4.0 20 0.049 99.295.20.0470.050mg/Kgo-Xylene 74-126 4.1 20 0.094 94.498.90.0980.100mg/Kgm,p-Xylene 75-124 4.6 20 10196.84-Bromofluorobenzene (S)70-130 103103Dibromofluoromethane (S)84-123 111101Toluene-d8 (S)76-129 Page 16 of 34Date:06/16/2023 12:01 PM Page 42 of 62 Quality Control Data 23-159-0034Report No: Project Description: Client ID:CES Group EL Morrison Lumber Co QC Prep Batch Method: Semivolatile Organic Compounds - GC/MS 8270E V34186QC Analytical Batch(es): Analysis Method: Analysis Description: 3546 QC Prep:V34156 Associated Lab Samples: 97895 LRB-V34156 Matrix: SOLLab Reagent Blank Parameter AnalyzedMQLMDLBlank ResultUnits % Recovery % Rec Limits 06/09/23 16:060.6600.116<0.116mg/KgAcenaphthene 06/09/23 16:060.6600.105<0.105mg/KgAcenaphthylene 06/09/23 16:060.6600.152<0.152mg/KgAniline 06/09/23 16:060.6600.143<0.143mg/KgAnthracene 06/09/23 16:060.6600.139<0.139mg/KgBenzo(a)anthracene 06/09/23 16:060.6600.147<0.147mg/KgBenzo(a)pyrene 06/09/23 16:060.6600.146<0.146mg/KgBenzo(b)fluoranthene 06/09/23 16:060.6600.136<0.136mg/KgBenzo(g,h,i)perylene 06/09/23 16:060.6600.137<0.137mg/KgBenzo(k)fluoranthene 06/09/23 16:062.000.580<0.580mg/KgBenzoic Acid 06/09/23 16:060.6600.105<0.105mg/KgBenzyl alcohol 06/09/23 16:060.6600.118<0.118mg/KgBis(2-Chloroethoxy)methane 06/09/23 16:060.6600.107<0.107mg/KgBis(2-Chloroethyl)ether 06/09/23 16:060.3300.136<0.136mg/KgBis(2-Chloroisopropyl)ether 06/09/23 16:060.6600.120<0.120mg/KgBis(2-ethylhexyl)phthalate 06/09/23 16:060.6600.109<0.109mg/Kg4-Bromophenyl phenyl ether 06/09/23 16:060.3300.113<0.113mg/KgButyl benzyl phthalate 06/09/23 16:060.6600.092<0.092mg/Kg4-Chloro-3-methylphenol 06/09/23 16:060.3300.112<0.112mg/Kg4-Chloroaniline 06/09/23 16:060.6600.116<0.116mg/Kg2-Chloronaphthalene 06/09/23 16:060.6600.098<0.098mg/Kg2-Chlorophenol 06/09/23 16:061.000.126<0.126mg/Kg4-Chlorophenyl phenyl ether 06/09/23 16:060.6600.142<0.142mg/KgChrysene 06/09/23 16:060.6600.230<0.230mg/KgDibenz(a,h)anthracene 06/09/23 16:060.6600.119<0.119mg/KgDibenzofuran 06/09/23 16:060.6600.094<0.094mg/Kg1,2-Dichlorobenzene 06/09/23 16:060.6600.097<0.097mg/Kg1,3-Dichlorobenzene Page 17 of 34Date:06/16/2023 12:01 PM Page 43 of 62 Quality Control Data 23-159-0034Report No: Project Description: Client ID:CES Group EL Morrison Lumber Co QC Prep Batch Method: Semivolatile Organic Compounds - GC/MS 8270E V34186QC Analytical Batch(es): Analysis Method: Analysis Description: 3546 QC Prep:V34156 Associated Lab Samples: 97895 LRB-V34156 Matrix: SOLLab Reagent Blank Parameter AnalyzedMQLMDLBlank ResultUnits % Recovery % Rec Limits 06/09/23 16:060.3300.097<0.097mg/Kg1,4-Dichlorobenzene 06/09/23 16:060.6600.147<0.147mg/Kg3,3'-Dichlorobenzidine 06/09/23 16:060.6600.095<0.095mg/Kg2,4-Dichlorophenol 06/09/23 16:060.6600.180<0.180mg/KgDiethyl phthalate 06/09/23 16:060.6600.174<0.174mg/KgDimethyl phthalate 06/09/23 16:060.3300.108<0.108mg/Kg2,4-Dimethylphenol 06/09/23 16:060.6600.107<0.107mg/KgDi-n-butyl phthalate 06/09/23 16:061.500.240<0.240mg/Kg4,6-Dinitro-2-methylphenol 06/09/23 16:061.500.520<0.520mg/Kg2,4-Dinitrophenol 06/09/23 16:060.6600.096<0.096mg/Kg2,4-Dinitrotoluene 06/09/23 16:060.6600.108<0.108mg/Kg2,6-Dinitrotoluene 06/09/23 16:060.3300.143<0.143mg/KgDi-n-Octyl Phthalate 06/09/23 16:060.6600.123<0.123mg/KgFluoranthene 06/09/23 16:060.6600.128<0.128mg/KgFluorene 06/09/23 16:060.6600.106<0.106mg/KgHexachlorobenzene 06/09/23 16:060.6600.097<0.097mg/KgHexachlorobutadiene 06/09/23 16:060.6600.157<0.157mg/KgHexachlorocyclopentadiene 06/09/23 16:060.6600.079<0.079mg/KgHexachloroethane 06/09/23 16:060.6600.179<0.179mg/KgIndeno(1,2,3-cd)pyrene 06/09/23 16:060.6600.191<0.191mg/KgIsophorone 06/09/23 16:060.6600.106<0.106mg/Kg1-Methylnaphthalene 06/09/23 16:060.6600.100<0.100mg/Kg2-Methylnaphthalene 06/09/23 16:060.6600.097<0.097mg/Kg2-Methylphenol 06/09/23 16:060.6600.084<0.084mg/Kg3&4 Methylphenol 06/09/23 16:060.6600.144<0.144mg/KgNaphthalene 06/09/23 16:060.6600.096<0.096mg/Kg2-Nitroaniline 06/09/23 16:060.6600.120<0.120mg/Kg3-Nitroaniline Page 18 of 34Date:06/16/2023 12:01 PM Page 44 of 62 Quality Control Data 23-159-0034Report No: Project Description: Client ID:CES Group EL Morrison Lumber Co QC Prep Batch Method: Semivolatile Organic Compounds - GC/MS 8270E V34186QC Analytical Batch(es): Analysis Method: Analysis Description: 3546 QC Prep:V34156 Associated Lab Samples: 97895 LRB-V34156 Matrix: SOLLab Reagent Blank Parameter AnalyzedMQLMDLBlank ResultUnits % Recovery % Rec Limits 06/09/23 16:060.3300.093<0.093mg/Kg4-Nitroaniline 06/09/23 16:060.3300.116<0.116mg/KgNitrobenzene 06/09/23 16:060.6600.088<0.088mg/Kg2-Nitrophenol 06/09/23 16:060.6600.117<0.117mg/Kg4-Nitrophenol 06/09/23 16:060.6600.263<0.263mg/KgN-Nitrosodimethylamine 06/09/23 16:060.6600.181<0.181mg/KgN-Nitrosodiphenylamine 06/09/23 16:060.6600.118<0.118mg/KgN-Nitroso-di-n-propylamine 06/09/23 16:061.000.347<0.347mg/KgPentachlorophenol 06/09/23 16:060.6600.208<0.208mg/KgPhenanthrene 06/09/23 16:060.6600.112<0.112mg/KgPhenol 06/09/23 16:060.6600.134<0.134mg/KgPyrene 06/09/23 16:060.3300.079<0.079mg/KgPyridine 06/09/23 16:060.6600.107<0.107mg/Kg1,2,4-Trichlorobenzene 06/09/23 16:060.6600.096<0.096mg/Kg2,4,5-Trichlorophenol 06/09/23 16:060.6600.096<0.096mg/Kg2,4,6-Trichlorophenol 06/09/23 16:062-Fluorobiphenyl (S)78.4 44-115 06/09/23 16:062-Fluorophenol (S)63.9 35-115 06/09/23 16:06Nitrobenzene-d5 (S)69.4 37-122 06/09/23 16:064-Terphenyl-d14 (S)90.4 54-127 06/09/23 16:062,4,6-Tribromophenol (S)68.1 39-132 06/09/23 16:06Phenol-d5 (S)58.5 34-121 LCS-V34156 LCSD-V34156Laboratory Control Sample & LCSD LCSD ResultParameter Max RPD LCSD % Rec LCS %Rec LCS Result Spike Conc.Units % Rec Limits RPD 1.41 84.480.81.351.67mg/KgAcenaphthene 40-123 4.3 20 Page 19 of 34Date:06/16/2023 12:01 PM Page 45 of 62 Quality Control Data 23-159-0034Report No: Project Description: Client ID:CES Group EL Morrison Lumber Co QC Prep Batch Method: Semivolatile Organic Compounds - GC/MS 8270E V34186QC Analytical Batch(es): Analysis Method: Analysis Description: 3546 QC Prep:V34156 LCS-V34156 LCSD-V34156Laboratory Control Sample & LCSD LCSD ResultParameter Max RPD LCSD % Rec LCS %Rec LCS Result Spike Conc.Units % Rec Limits RPD 1.37 82.080.81.351.67mg/KgAcenaphthylene 32-132 1.4 20 1.97 1181171.951.67mg/KgAniline 12-197 1.0 20 1.54 92.288.01.471.67mg/KgAnthracene 47-123 4.6 20 1.53 91.688.01.471.67mg/KgBenzo(a)anthracene 49-126 4.0 20 1.66 99.495.81.601.67mg/KgBenzo(a)pyrene 45-129 3.6 20 1.65 98.891.61.531.67mg/KgBenzo(b)fluoranthene 45-132 7.5 20 1.45 86.882.01.371.67mg/KgBenzo(g,h,i)perylene 43-134 5.6 20 1.58 94.692.21.541.67mg/KgBenzo(k)fluoranthene 47-132 2.5 20 0.627 37.564.61.081.67mg/KgBenzoic Acid 10-83 53.0*20 1.33 79.674.21.241.67mg/KgBenzyl alcohol 29-122 7.0 20 1.39 83.280.21.341.67mg/KgBis(2-Chloroethoxy)methane 36-121 3.6 20 1.13 67.662.81.051.67mg/KgBis(2-Chloroethyl)ether 31-120 7.3 20 1.23 73.669.41.161.67mg/KgBis(2-Chloroisopropyl)ether 33-131 5.8 20 1.38 82.679.61.331.67mg/KgBis(2-ethylhexyl)phthalate 51-133 3.6 20 1.60 95.891.01.521.67mg/Kg4-Bromophenyl phenyl ether 46-124 5.1 20 1.43 85.682.61.381.67mg/KgButyl benzyl phthalate 48-132 3.5 20 1.46 87.482.61.381.67mg/Kg4-Chloro-3-methylphenol 45-122 5.6 20 1.42 85.080.21.341.67mg/Kg4-Chloroaniline 17-106 5.7 20 1.39 83.283.21.391.67mg/Kg2-Chloronaphthalene 41-114 0.0 20 1.28 76.671.81.201.67mg/Kg2-Chlorophenol 34-121 6.4 20 1.54 92.290.41.511.67mg/Kg4-Chlorophenyl phenyl ether 45-121 1.9 20 1.57 94.089.21.491.67mg/KgChrysene 50-124 5.2 20 1.33 79.675.41.261.67mg/KgDibenz(a,h)anthracene 45-134 5.4 20 1.38 82.680.81.351.67mg/KgDibenzofuran 44-120 2.1 20 1.20 71.867.01.121.67mg/Kg1,2-Dichlorobenzene 33-117 6.8 20 1.14 68.265.81.101.67mg/Kg1,3-Dichlorobenzene 30-115 3.5 20 Page 20 of 34* QC Fail Date:06/16/2023 12:01 PM Page 46 of 62 Quality Control Data 23-159-0034Report No: Project Description: Client ID:CES Group EL Morrison Lumber Co QC Prep Batch Method: Semivolatile Organic Compounds - GC/MS 8270E V34186QC Analytical Batch(es): Analysis Method: Analysis Description: 3546 QC Prep:V34156 LCS-V34156 LCSD-V34156Laboratory Control Sample & LCSD LCSD ResultParameter Max RPD LCSD % Rec LCS %Rec LCS Result Spike Conc.Units % Rec Limits RPD 1.17 70.065.81.101.67mg/Kg1,4-Dichlorobenzene 31-115 6.1 20 1.36 81.477.21.291.67mg/Kg3,3'-Dichlorobenzidine 22-121 5.2 20 1.49 89.283.81.401.67mg/Kg2,4-Dichlorophenol 40-122 6.2 20 1.46 87.485.61.431.67mg/KgDiethyl phthalate 50-124 2.0 20 1.48 88.686.81.451.67mg/KgDimethyl phthalate 48-124 2.0 20 1.82 1091071.791.67mg/Kg2,4-Dimethylphenol 30-127 1.6 20 1.57 94.090.41.511.67mg/KgDi-n-butyl phthalate 51-128 3.8 20 1.52 91.081.41.361.67mg/Kg4,6-Dinitro-2-methylphenol 29-132 11.1 20 1.11 66.467.61.131.67mg/Kg2,4-Dinitrophenol 27-129 1.7 20 1.49 89.286.21.441.67mg/Kg2,4-Dinitrotoluene 48-126 3.4 20 1.48 88.686.81.451.67mg/Kg2,6-Dinitrotoluene 46-124 2.0 20 1.56 93.487.41.461.67mg/KgDi-n-Octyl Phthalate 45-140 6.6 20 1.44 86.282.61.381.67mg/KgFluoranthene 50-127 4.2 20 1.44 86.283.21.391.67mg/KgFluorene 43-125 3.5 20 1.55 92.885.61.431.67mg/KgHexachlorobenzene 45-122 8.0 20 1.47 88.079.61.331.67mg/KgHexachlorobutadiene 32-123 10.0 20 1.23 73.667.61.131.67mg/KgHexachlorocyclopentadiene 32-117 8.4 20 1.12 67.063.41.061.67mg/KgHexachloroethane 28-117 5.5 20 1.48 88.682.01.371.67mg/KgIndeno(1,2,3-cd)pyrene 45-133 7.7 20 1.21 72.470.01.171.67mg/KgIsophorone 30-122 3.3 20 1.35 80.877.21.291.67mg/Kg1-Methylnaphthalene 40-119 4.5 20 1.39 83.279.01.321.67mg/Kg2-Methylnaphthalene 38-122 5.1 20 1.30 77.873.01.221.67mg/Kg2-Methylphenol 32-122 6.3 20 1.19 71.265.81.101.67mg/Kg3&4 Methylphenol 34-119 7.8 20 1.30 77.873.61.231.67mg/KgNaphthalene 35-123 5.5 20 1.44 86.283.21.391.67mg/Kg2-Nitroaniline 44-127 3.5 20 Page 21 of 34Date:06/16/2023 12:01 PM Page 47 of 62 Quality Control Data 23-159-0034Report No: Project Description: Client ID:CES Group EL Morrison Lumber Co QC Prep Batch Method: Semivolatile Organic Compounds - GC/MS 8270E V34186QC Analytical Batch(es): Analysis Method: Analysis Description: 3546 QC Prep:V34156 LCS-V34156 LCSD-V34156Laboratory Control Sample & LCSD LCSD ResultParameter Max RPD LCSD % Rec LCS %Rec LCS Result Spike Conc.Units % Rec Limits RPD 1.32 79.076.01.271.67mg/Kg3-Nitroaniline 33-119 3.8 20 1.60 95.891.01.521.67mg/Kg4-Nitroaniline 63-147 5.1 20 1.24 74.271.21.191.67mg/KgNitrobenzene 34-122 4.1 20 1.34 80.275.41.261.67mg/Kg2-Nitrophenol 36-123 6.1 20 1.26 75.473.61.231.67mg/Kg4-Nitrophenol 30-132 2.4 20 1.03 61.659.40.9931.67mg/KgN-Nitrosodimethylamine 10-146 3.6 20 1.79 1071021.711.67mg/KgN-Nitrosodiphenylamine 38-127 4.5 20 1.24 74.270.01.171.67mg/KgN-Nitroso-di-n-propylamine 36-120 5.8 20 1.57 94.089.81.501.67mg/KgPentachlorophenol 25-133 4.5 20 1.47 88.083.81.401.67mg/KgPhenanthrene 50-121 4.8 20 1.25 74.869.41.161.67mg/KgPhenol 34-121 7.4 20 1.54 92.288.61.481.67mg/KgPyrene 47-127 3.9 20 0.774 46.346.40.7761.67mg/KgPyridine 10-80 0.2 20 1.35 80.875.41.261.67mg/Kg1,2,4-Trichlorobenzene 34-118 6.8 20 1.44 86.283.81.401.67mg/Kg2,4,5-Trichlorophenol 41-124 2.8 20 1.41 84.482.01.371.67mg/Kg2,4,6-Trichlorophenol 39-126 2.8 20 88.685.62-Fluorobiphenyl (S)44-115 73.871.72-Fluorophenol (S)35-115 76.676.0Nitrobenzene-d5 (S)37-122 1021014-Terphenyl-d14 (S)54-127 84.986.42,4,6-Tribromophenol (S)39-132 66.963.6Phenol-d5 (S)34-121 Page 22 of 34Date:06/16/2023 12:01 PM Page 48 of 62 Quality Control Data 23-159-0034Report No: Project Description: Client ID:CES Group EL Morrison Lumber Co QC Prep Batch Method: Semivolatile Organic Compounds - GC/MS 8270E V34353QC Analytical Batch(es): Analysis Method: Analysis Description: 3546 QC Prep:V34327 Associated Lab Samples: 97896 LRB-V34327 Matrix: SOLLab Reagent Blank Parameter AnalyzedMQLMDLBlank ResultUnits % Recovery % Rec Limits 06/14/23 16:200.6600.116<0.116mg/KgAcenaphthene 06/14/23 16:200.6600.105<0.105mg/KgAcenaphthylene 06/14/23 16:200.6600.152<0.152mg/KgAniline 06/14/23 16:200.6600.143<0.143mg/KgAnthracene 06/14/23 16:200.6600.139<0.139mg/KgBenzo(a)anthracene 06/14/23 16:200.6600.147<0.147mg/KgBenzo(a)pyrene 06/14/23 16:200.6600.146<0.146mg/KgBenzo(b)fluoranthene 06/14/23 16:200.6600.136<0.136mg/KgBenzo(g,h,i)perylene 06/14/23 16:200.6600.137<0.137mg/KgBenzo(k)fluoranthene 06/14/23 16:202.000.580<0.580mg/KgBenzoic Acid 06/14/23 16:200.6600.105<0.105mg/KgBenzyl alcohol 06/14/23 16:200.6600.118<0.118mg/KgBis(2-Chloroethoxy)methane 06/14/23 16:200.6600.107<0.107mg/KgBis(2-Chloroethyl)ether 06/14/23 16:200.3300.136<0.136mg/KgBis(2-Chloroisopropyl)ether 06/14/23 16:200.6600.120<0.120mg/KgBis(2-ethylhexyl)phthalate 06/14/23 16:200.6600.109<0.109mg/Kg4-Bromophenyl phenyl ether 06/14/23 16:200.3300.113<0.113mg/KgButyl benzyl phthalate 06/14/23 16:200.6600.092<0.092mg/Kg4-Chloro-3-methylphenol 06/14/23 16:200.3300.112<0.112mg/Kg4-Chloroaniline 06/14/23 16:200.6600.116<0.116mg/Kg2-Chloronaphthalene 06/14/23 16:200.6600.098<0.098mg/Kg2-Chlorophenol 06/14/23 16:201.000.126<0.126mg/Kg4-Chlorophenyl phenyl ether 06/14/23 16:200.6600.142<0.142mg/KgChrysene 06/14/23 16:200.6600.230<0.230mg/KgDibenz(a,h)anthracene 06/14/23 16:200.6600.119<0.119mg/KgDibenzofuran 06/14/23 16:200.6600.094<0.094mg/Kg1,2-Dichlorobenzene 06/14/23 16:200.6600.097<0.097mg/Kg1,3-Dichlorobenzene Page 23 of 34Date:06/16/2023 12:01 PM Page 49 of 62 Quality Control Data 23-159-0034Report No: Project Description: Client ID:CES Group EL Morrison Lumber Co QC Prep Batch Method: Semivolatile Organic Compounds - GC/MS 8270E V34353QC Analytical Batch(es): Analysis Method: Analysis Description: 3546 QC Prep:V34327 Associated Lab Samples: 97896 LRB-V34327 Matrix: SOLLab Reagent Blank Parameter AnalyzedMQLMDLBlank ResultUnits % Recovery % Rec Limits 06/14/23 16:200.3300.097<0.097mg/Kg1,4-Dichlorobenzene 06/14/23 16:200.6600.147<0.147mg/Kg3,3'-Dichlorobenzidine 06/14/23 16:200.6600.095<0.095mg/Kg2,4-Dichlorophenol 06/14/23 16:200.6600.180<0.180mg/KgDiethyl phthalate 06/14/23 16:200.6600.174<0.174mg/KgDimethyl phthalate 06/14/23 16:200.3300.108<0.108mg/Kg2,4-Dimethylphenol 06/14/23 16:200.6600.107<0.107mg/KgDi-n-butyl phthalate 06/14/23 16:201.500.240<0.240mg/Kg4,6-Dinitro-2-methylphenol 06/14/23 16:201.500.520<0.520mg/Kg2,4-Dinitrophenol 06/14/23 16:200.6600.096<0.096mg/Kg2,4-Dinitrotoluene 06/14/23 16:200.6600.108<0.108mg/Kg2,6-Dinitrotoluene 06/14/23 16:200.3300.143<0.143mg/KgDi-n-Octyl Phthalate 06/14/23 16:200.6600.123<0.123mg/KgFluoranthene 06/14/23 16:200.6600.128<0.128mg/KgFluorene 06/14/23 16:200.6600.106<0.106mg/KgHexachlorobenzene 06/14/23 16:200.6600.097<0.097mg/KgHexachlorobutadiene 06/14/23 16:200.6600.157<0.157mg/KgHexachlorocyclopentadiene 06/14/23 16:200.6600.079<0.079mg/KgHexachloroethane 06/14/23 16:200.6600.179<0.179mg/KgIndeno(1,2,3-cd)pyrene 06/14/23 16:200.6600.191<0.191mg/KgIsophorone 06/14/23 16:200.6600.106<0.106mg/Kg1-Methylnaphthalene 06/14/23 16:200.6600.100<0.100mg/Kg2-Methylnaphthalene 06/14/23 16:200.6600.097<0.097mg/Kg2-Methylphenol 06/14/23 16:200.6600.084<0.084mg/Kg3&4 Methylphenol 06/14/23 16:200.6600.144<0.144mg/KgNaphthalene 06/14/23 16:200.6600.096<0.096mg/Kg2-Nitroaniline 06/14/23 16:200.6600.120<0.120mg/Kg3-Nitroaniline Page 24 of 34Date:06/16/2023 12:01 PM Page 50 of 62 Quality Control Data 23-159-0034Report No: Project Description: Client ID:CES Group EL Morrison Lumber Co QC Prep Batch Method: Semivolatile Organic Compounds - GC/MS 8270E V34353QC Analytical Batch(es): Analysis Method: Analysis Description: 3546 QC Prep:V34327 Associated Lab Samples: 97896 LRB-V34327 Matrix: SOLLab Reagent Blank Parameter AnalyzedMQLMDLBlank ResultUnits % Recovery % Rec Limits 06/14/23 16:200.3300.093<0.093mg/Kg4-Nitroaniline 06/14/23 16:200.3300.116<0.116mg/KgNitrobenzene 06/14/23 16:200.6600.088<0.088mg/Kg2-Nitrophenol 06/14/23 16:200.6600.117<0.117mg/Kg4-Nitrophenol 06/14/23 16:200.6600.263<0.263mg/KgN-Nitrosodimethylamine 06/14/23 16:200.6600.181<0.181mg/KgN-Nitrosodiphenylamine 06/14/23 16:200.6600.118<0.118mg/KgN-Nitroso-di-n-propylamine 06/14/23 16:201.000.347<0.347mg/KgPentachlorophenol 06/14/23 16:200.6600.208<0.208mg/KgPhenanthrene 06/14/23 16:200.6600.112<0.112mg/KgPhenol 06/14/23 16:200.6600.134<0.134mg/KgPyrene 06/14/23 16:200.3300.079<0.079mg/KgPyridine 06/14/23 16:200.6600.107<0.107mg/Kg1,2,4-Trichlorobenzene 06/14/23 16:200.6600.096<0.096mg/Kg2,4,5-Trichlorophenol 06/14/23 16:200.6600.096<0.096mg/Kg2,4,6-Trichlorophenol 06/14/23 16:202-Fluorobiphenyl (S)73.6 44-115 06/14/23 16:202-Fluorophenol (S)60.9 35-115 06/14/23 16:20Nitrobenzene-d5 (S)65.8 37-122 06/14/23 16:204-Terphenyl-d14 (S)83.8 54-127 06/14/23 16:202,4,6-Tribromophenol (S)54.0 39-132 06/14/23 16:20Phenol-d5 (S)56.4 34-121 LCS-V34327Laboratory Control Sample Parameter LCS %RecLCS Result Spike Conc.Units % Rec Limits 70.61.181.67mg/KgAcenaphthene 40-123 71.21.191.67mg/KgAcenaphthylene 32-132 Page 25 of 34Date:06/16/2023 12:01 PM Page 51 of 62 Quality Control Data 23-159-0034Report No: Project Description: Client ID:CES Group EL Morrison Lumber Co QC Prep Batch Method: Semivolatile Organic Compounds - GC/MS 8270E V34353QC Analytical Batch(es): Analysis Method: Analysis Description: 3546 QC Prep:V34327 LCS-V34327Laboratory Control Sample Parameter LCS %RecLCS Result Spike Conc.Units % Rec Limits 1011.691.67mg/KgAniline 12-197 83.21.391.67mg/KgAnthracene 47-123 79.01.321.67mg/KgBenzo(a)anthracene 49-126 84.41.411.67mg/KgBenzo(a)pyrene 45-129 83.21.391.67mg/KgBenzo(b)fluoranthene 45-132 70.01.171.67mg/KgBenzo(g,h,i)perylene 43-134 79.01.321.67mg/KgBenzo(k)fluoranthene 47-132 56.70.9481.67mg/KgBenzoic Acid 10-83 67.01.121.67mg/KgBenzyl alcohol 29-122 71.21.191.67mg/KgBis(2-Chloroethoxy)methane 36-121 61.61.031.67mg/KgBis(2-Chloroethyl)ether 31-120 67.01.121.67mg/KgBis(2-Chloroisopropyl)ether 33-131 72.41.211.67mg/KgBis(2-ethylhexyl)phthalate 51-133 80.21.341.67mg/Kg4-Bromophenyl phenyl ether 46-124 76.61.281.67mg/KgButyl benzyl phthalate 48-132 73.01.221.67mg/Kg4-Chloro-3-methylphenol 45-122 73.01.221.67mg/Kg4-Chloroaniline 17-106 70.61.181.67mg/Kg2-Chloronaphthalene 41-114 62.81.051.67mg/Kg2-Chlorophenol 34-121 76.01.271.67mg/Kg4-Chlorophenyl phenyl ether 45-121 79.01.321.67mg/KgChrysene 50-124 67.61.131.67mg/KgDibenz(a,h)anthracene 45-134 69.41.161.67mg/KgDibenzofuran 44-120 60.41.011.67mg/Kg1,2-Dichlorobenzene 33-117 59.20.9901.67mg/Kg1,3-Dichlorobenzene 30-115 61.01.021.67mg/Kg1,4-Dichlorobenzene 31-115 67.61.131.67mg/Kg3,3'-Dichlorobenzidine 22-121 Page 26 of 34Date:06/16/2023 12:01 PM Page 52 of 62 Quality Control Data 23-159-0034Report No: Project Description: Client ID:CES Group EL Morrison Lumber Co QC Prep Batch Method: Semivolatile Organic Compounds - GC/MS 8270E V34353QC Analytical Batch(es): Analysis Method: Analysis Description: 3546 QC Prep:V34327 LCS-V34327Laboratory Control Sample Parameter LCS %RecLCS Result Spike Conc.Units % Rec Limits 72.41.211.67mg/Kg2,4-Dichlorophenol 40-122 74.21.241.67mg/KgDiethyl phthalate 50-124 76.01.271.67mg/KgDimethyl phthalate 48-124 92.81.551.67mg/Kg2,4-Dimethylphenol 30-127 86.81.451.67mg/KgDi-n-butyl phthalate 51-128 76.01.271.67mg/Kg4,6-Dinitro-2-methylphenol 29-132 74.21.241.67mg/Kg2,4-Dinitrophenol 27-129 74.21.241.67mg/Kg2,4-Dinitrotoluene 48-126 75.41.261.67mg/Kg2,6-Dinitrotoluene 46-124 79.61.331.67mg/KgDi-n-Octyl Phthalate 45-140 80.21.341.67mg/KgFluoranthene 50-127 74.81.251.67mg/KgFluorene 43-125 75.41.261.67mg/KgHexachlorobenzene 45-122 70.61.181.67mg/KgHexachlorobutadiene 32-123 66.41.111.67mg/KgHexachlorocyclopentadiene 32-117 59.80.9991.67mg/KgHexachloroethane 28-117 71.81.201.67mg/KgIndeno(1,2,3-cd)pyrene 45-133 62.21.041.67mg/KgIsophorone 30-122 64.61.081.67mg/Kg1-Methylnaphthalene 40-119 66.41.111.67mg/Kg2-Methylnaphthalene 38-122 65.21.091.67mg/Kg2-Methylphenol 32-122 59.10.9871.67mg/Kg3&4 Methylphenol 34-119 66.41.111.67mg/KgNaphthalene 35-123 79.61.331.67mg/Kg2-Nitroaniline 44-127 73.01.221.67mg/Kg3-Nitroaniline 33-119 81.41.361.67mg/Kg4-Nitroaniline 63-147 64.61.081.67mg/KgNitrobenzene 34-122 Page 27 of 34Date:06/16/2023 12:01 PM Page 53 of 62 Quality Control Data 23-159-0034Report No: Project Description: Client ID:CES Group EL Morrison Lumber Co QC Prep Batch Method: Semivolatile Organic Compounds - GC/MS 8270E V34353QC Analytical Batch(es): Analysis Method: Analysis Description: 3546 QC Prep:V34327 LCS-V34327Laboratory Control Sample Parameter LCS %RecLCS Result Spike Conc.Units % Rec Limits 67.01.121.67mg/Kg2-Nitrophenol 36-123 65.81.101.67mg/Kg4-Nitrophenol 30-132 54.70.9151.67mg/KgN-Nitrosodimethylamine 10-146 94.01.571.67mg/KgN-Nitrosodiphenylamine 38-127 64.01.071.67mg/KgN-Nitroso-di-n-propylamine 36-120 77.81.301.67mg/KgPentachlorophenol 25-133 79.01.321.67mg/KgPhenanthrene 50-121 63.41.061.67mg/KgPhenol 34-121 79.61.331.67mg/KgPyrene 47-127 42.90.7171.67mg/KgPyridine 10-80 66.41.111.67mg/Kg1,2,4-Trichlorobenzene 34-118 70.61.181.67mg/Kg2,4,5-Trichlorophenol 41-124 68.81.151.67mg/Kg2,4,6-Trichlorophenol 39-126 75.42-Fluorobiphenyl (S)44-115 63.92-Fluorophenol (S)35-115 70.0Nitrobenzene-d5 (S)37-122 90.44-Terphenyl-d14 (S)54-127 69.92,4,6-Tribromophenol (S)39-132 58.8Phenol-d5 (S)34-121 V 97822-MS-V34327 V 97822-MSD-V34327Matrix Spike & Matrix Spike Duplicate MS Result Parameter Max RPD MS %Rec MSD Result MSD Spike Conc. MS Spike Conc.ResultUnits %Rec Limits MSD %Rec RPD 1.02 61.01.101.661.67<0.116mg/KgAcenaphthene 66.2 40-123 7.5 20 1.01 60.41.051.661.67<0.105mg/KgAcenaphthylene 63.2 32-132 3.8 20 1.74 1042.021.661.67<0.152mg/KgAniline 122 12-197 14.8 20 Page 28 of 34Date:06/16/2023 12:01 PM Page 54 of 62 Quality Control Data 23-159-0034Report No: Project Description: Client ID:CES Group EL Morrison Lumber Co QC Prep Batch Method: Semivolatile Organic Compounds - GC/MS 8270E V34353QC Analytical Batch(es): Analysis Method: Analysis Description: 3546 QC Prep:V34327 V 97822-MS-V34327 V 97822-MSD-V34327Matrix Spike & Matrix Spike Duplicate MS Result Parameter Max RPD MS %Rec MSD Result MSD Spike Conc. MS Spike Conc.ResultUnits %Rec Limits MSD %Rec RPD 1.16 69.41.241.661.67<0.143mg/KgAnthracene 74.6 47-123 6.6 20 1.13 67.61.171.661.67<0.139mg/KgBenzo(a)anthracene 70.4 49-126 3.4 20 1.20 71.81.261.661.67<0.147mg/KgBenzo(a)pyrene 75.9 45-129 4.8 20 1.19 71.21.241.661.67<0.146mg/KgBenzo(b)fluoranthene 74.6 45-132 4.1 20 1.01 60.41.041.661.67<0.136mg/KgBenzo(g,h,i)perylene 62.6 43-134 2.9 20 1.14 68.21.171.661.67<0.137mg/KgBenzo(k)fluoranthene 70.4 47-132 2.5 20 0.694 41.50.7161.661.67<0.580mg/KgBenzoic Acid 43.1 10-83 3.1 20 0.985 58.91.011.661.67<0.105mg/KgBenzyl alcohol 60.8 29-122 2.5 20 1.04 62.21.081.661.67<0.118mg/KgBis(2-Chloroethoxy)methane 65.0 36-121 3.7 20 0.934 55.90.9501.661.67<0.107mg/KgBis(2-Chloroethyl)ether 57.2 31-120 1.6 20 1.04 62.21.051.661.67<0.136mg/KgBis(2-Chloroisopropyl)ether 63.2 33-131 0.9 20 1.05 62.81.061.661.67<0.120mg/KgBis(2-ethylhexyl)phthalate 63.8 51-133 0.9 20 1.08 64.61.201.661.67<0.109mg/Kg4-Bromophenyl phenyl ether 72.2 46-124 10.5 20 1.12 67.01.131.661.67<0.113mg/KgButyl benzyl phthalate 68.0 48-132 0.8 20 1.01 60.41.061.661.67<0.092mg/Kg4-Chloro-3-methylphenol 63.8 45-122 4.8 20 1.11 66.41.141.661.67<0.112mg/Kg4-Chloroaniline 68.6 17-106 2.6 20 1.07 64.01.101.661.67<0.116mg/Kg2-Chloronaphthalene 66.2 41-114 2.7 20 0.944 56.50.9361.661.67<0.098mg/Kg2-Chlorophenol 56.3 34-121 0.8 20 1.04 62.21.151.661.67<0.126mg/Kg4-Chlorophenyl phenyl ether 69.2 45-121 10.0 20 1.12 67.01.181.661.67<0.142mg/KgChrysene 71.0 50-124 5.2 20 0.944 56.51.021.661.67<0.230mg/KgDibenz(a,h)anthracene 61.4 45-134 7.7 20 1.00 59.81.051.661.67<0.119mg/KgDibenzofuran 63.2 44-120 4.8 20 0.909 54.40.9491.661.67<0.094mg/Kg1,2-Dichlorobenzene 57.1 33-117 4.3 20 0.854 51.10.8821.661.67<0.097mg/Kg1,3-Dichlorobenzene 53.1 30-115 3.2 20 0.878 52.50.9091.661.67<0.097mg/Kg1,4-Dichlorobenzene 54.7 31-115 3.4 20 0.990 59.21.051.661.67<0.147mg/Kg3,3'-Dichlorobenzidine 63.2 22-121 5.8 20 Page 29 of 34Date:06/16/2023 12:01 PM Page 55 of 62 Quality Control Data 23-159-0034Report No: Project Description: Client ID:CES Group EL Morrison Lumber Co QC Prep Batch Method: Semivolatile Organic Compounds - GC/MS 8270E V34353QC Analytical Batch(es): Analysis Method: Analysis Description: 3546 QC Prep:V34327 V 97822-MS-V34327 V 97822-MSD-V34327Matrix Spike & Matrix Spike Duplicate MS Result Parameter Max RPD MS %Rec MSD Result MSD Spike Conc. MS Spike Conc.ResultUnits %Rec Limits MSD %Rec RPD 1.04 62.21.121.661.67<0.095mg/Kg2,4-Dichlorophenol 67.4 40-122 7.4 20 1.06 63.41.121.661.67<0.180mg/KgDiethyl phthalate 67.4 50-124 5.5 20 1.06 63.41.131.661.67<0.174mg/KgDimethyl phthalate 68.0 48-124 6.3 30 1.38 82.61.411.661.67<0.108mg/Kg2,4-Dimethylphenol 84.9 30-127 2.1 20 1.22 73.01.251.661.67<0.107mg/KgDi-n-butyl phthalate 75.3 51-128 2.4 20 0.493 29.50.3611.661.67<0.240mg/Kg4,6-Dinitro-2-methylphenol 21.7*29-132 30.9*20 <0.520 0.0*<0.5201.661.67<0.520mg/Kg2,4-Dinitrophenol 0.0*27-129 0.0 20 0.716 42.8*0.4791.661.67<0.096mg/Kg2,4-Dinitrotoluene 28.8*48-126 39.6*20 0.818 48.90.5261.661.67<0.108mg/Kg2,6-Dinitrotoluene 31.6*46-124 43.4*20 1.15 68.81.181.661.67<0.143mg/KgDi-n-Octyl Phthalate 71.0 45-140 2.5 20 1.10 65.81.151.661.67<0.123mg/KgFluoranthene 69.2 50-127 4.4 20 1.03 61.61.131.661.67<0.128mg/KgFluorene 68.0 43-125 9.2 20 0.996 59.61.121.661.67<0.106mg/KgHexachlorobenzene 67.4 45-122 11.7 20 1.02 61.01.051.661.67<0.097mg/KgHexachlorobutadiene 63.2 32-123 2.8 20 0.507 30.3*0.4351.661.67<0.157mg/KgHexachlorocyclopentadiene 26.2*32-117 15.2 20 0.850 50.80.8041.661.67<0.079mg/KgHexachloroethane 48.4 28-117 5.5 20 1.02 61.01.081.661.67<0.179mg/KgIndeno(1,2,3-cd)pyrene 65.0 45-133 5.7 20 0.889 53.20.9241.661.67<0.191mg/KgIsophorone 55.6 30-122 3.8 20 0.961 57.51.011.661.67<0.106mg/Kg1-Methylnaphthalene 60.8 40-119 4.9 20 0.948 56.71.011.661.67<0.100mg/Kg2-Methylnaphthalene 60.8 38-122 6.3 20 0.996 59.61.031.661.67<0.097mg/Kg2-Methylphenol 62.0 32-122 3.3 20 0.894 53.50.9181.661.67<0.085mg/Kg3&4 Methylphenol 55.3 34-119 2.6 20 0.962 57.61.011.661.67<0.144mg/KgNaphthalene 60.8 35-123 4.8 20 1.09 65.20.8691.661.67<0.096mg/Kg2-Nitroaniline 52.3 44-127 22.5*20 0.774 46.30.6321.661.67<0.120mg/Kg3-Nitroaniline 38.0 33-119 20.1*20 1.15 68.80.9751.661.67<0.093mg/Kg4-Nitroaniline 58.7*63-147 16.4 20 Page 30 of 34* QC Fail Date:06/16/2023 12:01 PM Page 56 of 62 Quality Control Data 23-159-0034Report No: Project Description: Client ID:CES Group EL Morrison Lumber Co QC Prep Batch Method: Semivolatile Organic Compounds - GC/MS 8270E V34353QC Analytical Batch(es): Analysis Method: Analysis Description: 3546 QC Prep:V34327 V 97822-MS-V34327 V 97822-MSD-V34327Matrix Spike & Matrix Spike Duplicate MS Result Parameter Max RPD MS %Rec MSD Result MSD Spike Conc. MS Spike Conc.ResultUnits %Rec Limits MSD %Rec RPD 0.757 45.30.5501.661.67<0.116mg/KgNitrobenzene 33.1*34-122 31.6*20 0.397 23.7*0.3391.661.67<0.088mg/Kg2-Nitrophenol 20.4*32-123 15.7 20 0.799 47.80.7021.661.67<0.117mg/Kg4-Nitrophenol 42.2 30-132 12.9 20 0.801 47.90.8141.661.67<0.263mg/KgN-Nitrosodimethylamine 49.0 10-146 1.6 30 1.31 78.41.371.661.67<0.181mg/KgN-Nitrosodiphenylamine 82.5 38-127 4.4 20 0.972 58.20.9861.661.67<0.118mg/KgN-Nitroso-di-n-propylamine 59.3 36-120 1.4 20 1.04 62.21.161.661.67<0.347mg/KgPentachlorophenol 69.8 25-133 10.9 20 1.12 67.01.171.661.67<0.208mg/KgPhenanthrene 70.4 50-121 4.3 20 0.964 57.70.9811.661.67<0.112mg/KgPhenol 59.0 34-121 1.7 20 1.10 65.81.131.661.67<0.134mg/KgPyrene 68.0 47-127 2.6 20 0.658 39.40.6521.661.67<0.079mg/KgPyridine 39.2 10-80 0.9 20 0.970 58.01.011.661.67<0.107mg/Kg1,2,4-Trichlorobenzene 60.8 34-118 4.0 20 1.08 64.61.131.661.67<0.096mg/Kg2,4,5-Trichlorophenol 68.0 41-124 4.5 20 1.03 61.61.091.661.67<0.096mg/Kg2,4,6-Trichlorophenol 65.6 39-126 5.6 20 67.62-Fluorobiphenyl (S)72.8 44-115 58.32-Fluorophenol (S)57.0 35-115 51.7Nitrobenzene-d5 (S)44.7 37-122 73.04-Terphenyl-d14 (S)77.1 54-127 53.22,4,6-Tribromophenol (S)60.3 39-132 52.6Phenol-d5 (S)53.1 34-121 Page 31 of 34* QC Fail Date:06/16/2023 12:01 PM Page 57 of 62 Quality Control Data 23-159-0034Report No: Project Description: Client ID:CES Group EL Morrison Lumber Co QC Prep Batch Method: Massachusetts EPH MADEP-EPH V34319QC Analytical Batch(es): Analysis Method: Analysis Description: MAEPH (Prep) QC Prep:V34174 Associated Lab Samples: 97895, 97896 LRB-V34174 Matrix: SOLLab Reagent Blank Parameter AnalyzedMQLMDLBlank ResultUnits % Recovery % Rec Limits 06/12/23 19:5950.09.20<9.20mg/KgAliphatic C9-C18 06/12/23 19:5950.012.2<12.2mg/KgAliphatic C19-C36 06/12/23 19:5950.014.2<14.2mg/KgAromatic C11-C22 06/12/23 19:592-Fluorobiphenyl (S)67.5 40-140 06/12/23 19:592-Bromonaphthalene (S)59.5 40-140 06/12/23 19:59Chlorooctadecane (S)64.3 40-140 06/12/23 19:59OTP Surrogate (S)48.2 40-140 LCS-V34174 LCSD-V34174Laboratory Control Sample & LCSD LCSD ResultParameter Max RPD LCSD % Rec LCS %Rec LCS Result Spike Conc.Units % Rec Limits RPD 41.4 69.068.140.960.0mg/KgAliphatic C9-C18 40-140 1.2 50 61.7 77.180.864.780.0mg/KgAliphatic C19-C36 40-140 4.7 50 145 85.272.3123170mg/KgAromatic C11-C22 40-140 16.4 50 11199.52-Fluorobiphenyl (S)40-140 10491.22-Bromonaphthalene (S)40-140 66.170.8Chlorooctadecane (S)40-140 76.667.3OTP Surrogate (S)40-140 Page 32 of 34Date:06/16/2023 12:01 PM Page 58 of 62 Quality Control Data 23-159-0034Report No: Project Description: Client ID:CES Group EL Morrison Lumber Co QC Prep Batch Method: Massachusetts VPH MADEP-VPH V34193QC Analytical Batch(es): Analysis Method: Analysis Description: MAVPH (Prep) QC Prep:V34192 Associated Lab Samples: 97895, 97896 LRB-V34192 Matrix: SOLLab Reagent Blank Parameter AnalyzedMQLMDLBlank ResultUnits % Recovery % Rec Limits 06/09/23 13:268.001.22<1.22mg/KgAliphatic C5-C8 06/09/23 13:268.004.56<4.56mg/KgAliphatic C9-C12 06/09/23 13:268.000.624<0.624mg/KgAromatic C9-C10 06/09/23 13:262,5-Dibromotoluene (FID) (S)90.9 70-130 06/09/23 13:262,5-Dibromotoluene (PID) (S)100 70-130 LCS-V34192 LCSD-V34192Laboratory Control Sample & LCSD LCSD ResultParameter Max RPD LCSD % Rec LCS %Rec LCS Result Spike Conc.Units % Rec Limits RPD 32.2 10197.131.132.0mg/KgAliphatic C5-C8 70-130 3.4 50 35.4 11110834.732.0mg/KgAliphatic C9-C12 70-130 1.9 50 12.4 11612113.010.7mg/KgAromatic C9-C10 70-130 4.7 50 78.684.62,5-Dibromotoluene (FID) (S)70-130 84.588.32,5-Dibromotoluene (PID) (S)70-130 Page 33 of 34Date:06/16/2023 12:01 PM Page 59 of 62 Quality Control Data 23-159-0034Report No: Project Description: Client ID:CES Group EL Morrison Lumber Co Dry Weight Determination SW-DRYWT V34151QC Analytical Batch: Analysis Method: Analysis Description: V 97823-DUPDuplicate Max RPD Parameter AnalyzedRPDDUP Result Result Units 20.0 06/09/23 11:301.78.798.64%Moisture Page 34 of 34Date:06/16/2023 12:01 PM Page 60 of 62 Fed Ex UPS US Postal Client Lab Courier Other : Shipment Receipt Form Customer Number: Customer Name: Report Number:23-159-0034 CES Group 00012 Shipping Method Shipping container/cooler uncompromised? Thermometer ID:IRT15 3.2C Chain of Custody (COC) present?Yes No Yes No Not Present Yes No Not Present Yes No COC agrees with sample label(s)? Yes No COC properly completed Samples in proper containers? Sample containers intact? Sufficient sample volume for indicated test(s)? All samples received within holding time? Cooler temperature in compliance? Yes No Yes No Yes No Yes No Yes No Yes NoCooler/Samples arrived at the laboratory on ice. Samples were considered acceptable as cooling process had begun. Yes No Yes No N/A Yes No N/A Yes No N/ASoil VOA method 5035 – compliance criteria met Water - Sample containers properly preserved Water - VOA vials free of headspace Yes No N/A Trip Blanks received with VOAs ü Low concentration EnCore samplers (48 hr) High concentration pre-weighed (methanol -14 d) Low conc pre-weighed vials (Sod Bis -14 d)ü High concentration container (48 hr) Custody seals intact on shipping container/cooler? Custody seals intact on sample bottles? Number of coolers/boxes received Yes No 1 Signature:Angelo Norvell Date & Time:06/08/2023 16:54:02 Special precautions or instructions included? Comments: Page 61 of 62 Page 62 of 62 APPENDIX E SOIL BORING LOG, WELL PERMIT AND WELL CONSTRUCTION RECORD CES Project No.: 8143.0423E Boring Number: SB-1 Page: 1 of 1 Site Name: E L Morrison Lumber Co Boring Location: Abandoned in Place Gasoline UST (Ie, source area) Address: 267 West Corban Avenue, Concord, NC Date: June 8, 2023 Sample Number Lab Sample Sample Recovery (5 Foot Intervals) Depth (feet) Detailed Soil and Rock Description PID (PPMV) Remarks / Notes 0__ 100% 5__(0-5'): Grey fine silty sand 0.0 No Odor / No Soil Staining SB-1 * 100% 10_(5-10’): Grey fine silty sand 0.0 No Odor / No Soil Staining 100% 15_(10-15’): Grey fine silty sand 0.0 No Odor / No Soil Staining Auger to 17-feet below grade End of Boring at approximately 17-feet below grade due to Refusal Dry at 17-feet below grade Note: Stratification lines are approximate; in-situ transition between soil types may be gradual. Ground Water Data: Drilling Information: Drilling Co.: Carolina Soil Investigations, LLC Water Indication (during boring): N/A Engineer/Geologist: Greg Hans, PMP Ground Water Depth (after boring): N/A Drilling Method: Geoprobe Augering via Trac Mounted 6712DT Drill Rig PID Reading (instrument units): PPMV Sampling Method: 5-foot samples from augers Borehole Depth: 17’ Abandonment: June 8, 2023 CES Project No.: 8143.0423E Boring Number: SB-2 Page: 1 of 1 Site Name: E L Morrison Lumber Co Boring Location: Downgradient of Abandoned in Place Gasoline UST (Ie, source area) Address: 267 West Corban Avenue, Concord, NC Date: June 8, 2023 Sample Number Lab Sample Sample Recovery (5 Foot Intervals) Depth (feet) Detailed Soil and Rock Description PID (PPMV) Remarks / Notes 0__ 100% 5__(0-5'): Grey fine silty sand 0.0 No Odor / No Soil Staining 100% 10_(5-10’): Grey fine silty sand 0.0 No Odor / No Soil Staining SB-2 (12’) * Auger to 12-feet below grade End of Boring at approximately 12-feet below grade due to Refusal Dry at 12-feet below grade * Sample collected for laboratory analysis Note: Stratification lines are approximate; in-situ transition between soil types may be gradual. Ground Water Data: Drilling Information: Drilling Co.: Carolina Soil Investigations, LLC Water Indication (during boring): N/A Engineer/Geologist: Greg Hans, PMP Ground Water Depth (after boring): N/A Drilling Method: Geoprobe Augering via Trac Mounted 6712DT Drill Rig PID Reading (instrument units): PPMV Sampling Method: 5-foot samples from augers Borehole Depth: 12’ Abandonment: June 8, 2023 North Carolina Department of Environmental Quality | Division of Water Resources Mooresville Regional Office | 601 East Center Avenue, Suite 301 | Mooresville, NC 28115 704.663.1699 May 8, 2023 Mr. Scott Ryals (via email) NCDEQ DWM, UST State Lead Program 1646 Mail Service Center Raleigh, NC 27699-1646 RE: Monitoring Well Construction Permit Permit # WM0301283 E.L. Morrison Lumber Company 261 Corban Ave. SW, Concord Cabarrus County Dear Mr. Ryals, In accordance with your completed application received on May 5, 2023, we are forwarding herewith Monitoring Well Construction Permit Numbered WM0301283 and issued for the construction of one monitoring well located near the subject site in Concord, Cabarrus County. As a reminder, well construction permit requirements are covered in 15A NCAC 02C .0105 Permits with the following relevant sections: (a) No person shall locate or construct any of the following wells until a permit has been issued by the Department: (3) any temporary or permanent monitoring well or monitoring well system, including wells installed using direct-push technology (DPT) or Geoprobe® technology, designed to penetrate an aquifer to obtain groundwater data on property not owned by the well owner; (d) An application for any well requiring a permit pursuant to Paragraph (a) of this Rule shall be submitted by the owner or his or her agent. In the event that the permit applicant is not the owner of the property where the well or well system is to be constructed, the permit application shall contain written approval from the property owner and a statement that the applicant assumes total responsibility for ensuring that the well(s) will be located, constructed, maintained and abandoned in accordance with the requirements of this Subchapter. (j) The well owner or his or her agent, and the North Carolina certified well contractor shall see that a permit is secured prior to the beginning of construction of any well for which a permit is required under the rules of this Subchapter. This Permit will be effective for one year from the date of issuance and shall be subject to the conditions and limitations as specified therein. Should you have any questions, please contact Edward Watson at (704) 235-2199, or by email at edward.watson@ncdenr.gov. Sincerely, Andrew H. Pitner, P.G., Assistant Regional Supervisor Mooresville Regional Office Water Quality Regional Operations Section Division of Water Resources CC: WQROS, Central Office (via Laserfiche) Greg Hans, CES Group (via email) Corey Speece, Carolina Soil Investigations (via email) NORTH CAROLINA DEPARTMENT OF ENVIRONMENTAL QUALITY DIVISION OF WATER RESOURCES PERMIT FOR THE CONSTRUCTION OF A MONITORING WELL In accordance with the provisions of Article 7, Chapter 87, North Carolina General Statutes, and other applicable Laws, Rules and Regulations. PERMISSION IS HEREBY GRANTED TO NCDEQ DWM UST State Lead Program (CES Group Engineers, LLP as Agent) FOR THE CONSTRUCTION OF A MONITOR WELL SYSTEM consisting of one monitoring well owned by the NCDEQ DWM UST State Lead Program, near the subject site located at 261 Corban Ave. SW, in Concord, Cabarrus County. This Permit is issued in accordance with the application received on May 5, 2023, in conformity with specifications and supporting data, all of which are filed with the Department of Environmental Quality and are considered integral parts of this Permit. This Permit is for well construction only, and does not waive any provision or requirement of any other applicable law or regulation. Construction of any well under this Permit shall be in strict compliance with the North Carolina Well Construction Regulations and Standards (15A NCAC 02C .0100), and other State and Local Laws and regulations pertaining to well construction. If any requirements or limitations specified in this Permit are unacceptable, you have a right to an adjudicatory hearing upon written request within 30 days of receipt of this Permit. The request must be in the form of a written petition conforming to Chapter 150B of the North Carolina General Statutes and filed with the Office of Administrative Hearings, 6714 Mail Service Center, Raleigh, North Carolina 27699-6714. Unless such a demand is made, this Permit is final and binding. This Permit will be effective for one year from the date of its issuance and shall be subject to other specified conditions, limitations, or exceptions as follows: 1. Issuance of this Permit does not obligate reimbursement from State trust funds, if these wells are being installed as part of an investigation for contamination from an underground storage tank or dry cleaner incident. 2. Issuance of this Permit does not supersede any other agreement, permit, or requirement issued by another agency. 3. The well(s) shall be located and constructed as shown on the attachments submitted as part of the Permit application. 4. Each well shall have a Well Contractor Identification Plate in accordance with 15A NCAC 02C .0108(o). 5. Well construction records (GW-1) for each well shall be submitted to the Division of Water Resources’ Information Processing Unit within 30 days of the well completion. 6. When the well is discontinued or abandoned, it shall be abandoned in accordance with 15A NCAC 02C .0113 and a well abandonment record (GW-30) shall be submitted to the Division of Water Resources’ Information Processing Unit within 30 days of the well abandonment. 7. If the well penetrates any water-bearing zone that contains contaminated waters, the upper three feet of the well shall be grouted within one day after the casing is set or the well abandoned. 8. Temporary wells must be permanently abandoned or converted to a permanent well within seven days (168 hours) of completion of drilling the borehole. Permit issued the 8th day of May 2023 FOR THE NORTH CAROLINA ENVIRONMENTAL MANAGEMENT COMMISSION _______________________________________________ Andrew H. Pitner, P.G., Assistant Regional Supervisor Division of Water Resources By Authority of the Environmental Management Commission Permit No. # WM0301283