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RESUB1 BLD2023-0503+ASBESTOS REPORT+5.15.2023_4.28.15_PM+3545933BLD2023-0503 RESUB May 16 2023 CITY OF EDMONDS DEVELOPMENT SERVICES DEPARTMENT N1fL INDUSTRIAL HYGIENE SERVICES LABORATORY + MANAGEMENT + TRAINING Good Faith Asbestos Inspection 19515 94t" PI. W. Edmonds, WA 98020 Prepared For Ms. Trisha Carmack Landsverk Quality Homes, Inc. 24113 56t" Ave. W. Mountlake Terrace, WA 98043 Project Number Inspection Date Report Date Inspected By: AHERA Certification: Certification Expiration Date 2023-0191 April 7, 2023 April 12, 2023 Cameron Patterson / Daniel Fyffe # 187422 / # 187715 January 19, 2024 / February 9, 2024 TABLE OF CONTENTS 1.0 SCOPE OF WORK 2.0 INSPECTION METHOD 3.0 LABORATORY INFORMATION 4.0 BUILDING DESCRIPTION 5.0 FINDINGS 6.0 CONCLUSIONS AND RECOMMENDATIONS 7.0 LIMITATIONS APPENDICIES A Sample Locations (Floor Plan) B Laboratory Analysis Results C AHERA Certification & Laboratory Qualifications 3 4-5 6 7 8-11 12-13 14 19515 94th PI. W. Edmonds, WA 98020 Project Number: 2023-0191 1.0 SCOPE OF WORK A Good Faith Asbestos Inspection was conducted on the residence located at 19515 9411 PI. W., Edmonds, WA 98020 on April 7, 2023. ;1'l� Cameron Patterson and Daniel Fyffe (AHERA Certified Building Inspectors) conducted this inspection at the request of Ms. Trisha Carmack of Landsverk Quality Homes. The purpose of this inspection was to identify all suspect asbestos -containing building materials which would be impacted by the planned demolition of the residence. Destructive sampling methods were utilized to collect samples of suspect building materials. No soft/limited demolition was performed during this inspection. Hidden materials may exist within the structures, and all suspect materials must be treated as asbestos containing until testing proves otherwise. This inspection constitutes a survey of accessible suspect ACM in the project area and was conducted in accordance with: The National Emission Standards for Hazardous Air Pollutants (NESHAP) 40 Code of Federal Regulations (CFR) Part 61, Subpart M requires a survey by an accredited asbestos inspector prior to demolition of a structures. This asbestos survey also satisfies the requirements for "Good Faith" inspection outlined in Washington Administrative Code (WAC) 296-62-07721 (2) Communication of hazards, which requires the owner of a structures to provide contractors with a written report identifying the asbestos -containing materials expected to be disturbed during renovation or demolition. The asbestos survey section is written to comply with the AHERA asbestos sampling procedure as stated in 40 CFR 763.86. This protocol is required under the Puget Sound Clean Air Agency (PSCAA Regulation I II, Article IV, rev. March 26, 2009) for all asbestos surveys prior to a building demolition. A floor plan indicating locations of samples collected by NVL personnel has been included in Appendix A. NVL Laboratories, Inc. 4708 Aurora Ave N Seattle, WA 98199 Phone (206) 547-0100 • Fax (206) 634-1936 3 19515 94th PI. W. Edmonds, WA 98020 Project Number: 2023-0191 2.0 INSPECTION METHOD Asbestos Inspection Method ;1'l� The NVL Labs field inspector is an Asbestos Building Inspector, certified under the requirements of the United States Environmental Protection Agency (EPA) Asbestos Hazard Emergency Response Act (AHERA) regulation 40 CFR 763, Subpart E. A copy of his certificate is provided in Appendix C. The AHERA Guidelines dictate the following: The inspector must determine homogeneous areas, which are defined as an area of Thermal System Insulation, Surfacing Material, or Miscellaneous Material that is uniform in texture and color. Once homogeneous areas have been determined, the inspector must determine whether or not material is friable or non -friable. Friable is defined as a material, that when dry, can be crushed, pulverized, or reduced to dust using hand pressure, and non -friable material is defined as a material, that when dry, cannot be crushed pulverized or reduced to dust using hand pressure. Materials normally defined as non -friable can become friable by definition if sufficiently damaged. Once friability has been determined, the materials suspected of containing asbestos are divided into one of three categories: Thermal System Insulation (TSI), Surfacing Material (SM), or Miscellaneous Material (MM). Generally speaking, TSI and SM are considered to be friable, with the exception of TSI where the structural integrity of the insulation is intact and the protective out wrap is undamaged. Once materials are divided into one of the categories, samples are collected in the following manner: Friable Thermal System Insulation: 1. Inspector shall collect three (3) randomly distributed samples; 2. Inspector shall collect a minimum of one sample of each TSI materials that appears to have been used as a patch, as long as the patch is less than six linear feet or six square feet; 3. Inspector shall collect in a manner sufficient, samples from areas of TSI applied to fittings, tees, and joints. Friable Surfacing Material: 1. Inspector shall collect samples in statistically random manner of surfacing materials as follows: a. Collect three bulk samples from an area believed to be homogeneous (defined as a material that appears to be the same or similar and was installed at the same time) that is 1,000 square feet or less in size; b. Collect five bulk samples from an area believed to be homogeneous that is greater than 1,000 square feet in size, but less than 5,000 square feet in size; c. Collect seven bulk samples from an area believed to be homogeneous that is greater than 5,000 square feet. NVL Laboratories, Inc. 4708 Aurora Ave N Seattle, WA 98199 Phone (206) 547-0100 • Fax (206) 634-1936 4 19515 94th PI. W. Edmonds, WA 98020 Project Number: 2023-0191 2.0 INSPECTION METHOD (continued) Miscellaneous Materials: ;1'l� Inspector shall collect samples in a manner and number sufficient to determine if the material is asbestos -containing or not. All Materials Determined to Be Non -Friable: 1. Inspector shall collect samples in a manner and number sufficient to determine if the material is asbestos containing or not. In addition to these sampling requirements, the AHERA Building Inspector is required to assess the following of each material that is found to be positive for asbestos: 1. The condition of each material; 2. Accessibility; 3. Possibility for air erosion. Once the samples have been collected, they must be analyzed by an accredited laboratory, and they must be analyzed using polarized light microscopy methods, commonly referred to as EPA Method 600/R-93/116. NVL Labs collected samples and obtained analytical data for suspect asbestos -containing materials identified in the building. Once collected, each bulk sample was sealed in an unadulterated plastic bag to eliminate the possibility of cross -contamination. "Chain -of -Custody" tracking was followed to maintain sample integrity during handling and data reporting at NVL Labs. A walk-through inspection of all accessible areas of these structures was performed to identify potential asbestos -containing materials. The walk-through inspection included a review of the internal and external aspects of these structures. The locations and types of potential asbestos -containing materials were noted. Homogeneous Materials Homogeneous materials are defined as an area of asbestos -containing material or presumed asbestos - containing material which appears similar throughout in terms of color, texture, and date of material application. The report listing for homogenous materials will appear as follows: Sample Material Description by Layer Location Asbestos Quantity Friable Number Layer 1 is not asbestos -containing 1. # Location description "X" LF/ft2 Yes/No Layer 2 is asbestos -containing 2. % NVL Laboratories, Inc. 4708 Aurora Ave N Seattle, WA 98199 Phone (206) 547-0100 • Fax (206) 634-1936 5 19515 94th PI. W. Edmonds,N �L Project Number: 202 2023-0191 3.0 LABORATORY INFORMATION Laboratory Analysis: Asbestos In accordance with 40 CFR Chapter 1 (7-01-07 Edition) Part 763, Subpart E, Appendix E, asbestos samples are analyzed at NVL Labs using polarized light microscopy (PLM) with dispersion staining. If samples are not homogeneous, then sub -samples of the components are analyzed separately. All bulk samples are analyzed using EPA Method 600/R-93/116 with the following measurement uncertainties for reported % asbestos: 1%=0-3%, 5%>_1-9%, 10%=5-15%, 20%=10-30%, 50%=40-60%. Only materials containing more than 1 % total asbestos were classified as "asbestos -containing" based on EPA, state, and local regulations. Findings for samples containing more than one separable layer of materials are reported for each layer. The asbestos concentration in the sample is determined by visual estimation. NVL Labs is accredited by the National Institute of Standards and Technology (NIST) under the National Volunteer Laboratory Accreditation Program (NVLAP) program for bulk asbestos fiber analysis; NVLAP Lab Code 102063-0 Laboratory Accreditation Professional accreditations for NVL Laboratories, Inc. include the following: NVL Laboratories, Inc. is currently accredited by the National Institute of Standards and Technology (NIST) under the National Volunteer Laboratory Accreditation Program (NVLAP) program for bulk asbestos fiber analysis. NVLAP Lab Code 102063-0 NVL Laboratories, Inc. is approved by the American Industrial Hygiene Association (AIHA) Asbestos Analysts Registry (AAR) program for airborne asbestos fiber analysis. AAR Counter ID 7412 NVL Laboratories, Inc. is currently accredited by the American Industrial Hygiene Association (AIHA) under the Industrial Hygiene Laboratory Accreditation Program (IHLAP). The IHLAP program is designed specifically for laboratories involved in analyzing samples to evaluate workplace exposure. IHLAP Certification Number 563 NVL Laboratories, Inc. 4708 Aurora Ave N Seattle, WA 98199 Phone (206) 547-0100 • Fax (206) 634-1936 0 19515 94th PI. W. Edmonds, WA 98020 Project Number: 2023-0191 4.0 BUILDING DESCRIPTION Parcel Number Year of Construction Buildings Square Footage County General Building Type Primary External Components Foundation Type Roofing Material(s) Window Type(s) Flooring Thermal Systems with Insulation Finishing ;1'l� 00434600005801 1960 2795 ft2 Snohomish The property consists of a single-family residence of wood framed construction. The exterior of the residence has wood siding. The residence has a below -grade concrete foundation. The residence has tri-tab roofing. The residence has aluminum windows with caulking, glass - block windows with mortar, and wood framed windows with no associated caulking or glazing. The residence has ceramic tile, carpet, sheet vinyl, vinyl floor tile, wood laminate, and hardwood flooring. The residence is heated by a forced air heating system, with no visible suspect thermal insulation. The residence is finished with drywall, and texture. NVL Laboratories, Inc. 4708 Aurora Ave N Seattle, WA 98199 Phone (206) 547-0100 • Fax (206) 634-1936 7 19515 94th PI. W. Edmonds, WA 98020 Project Number: 2023-0191 5.0 FINDINGS ;1'l� Sample Number Material Description by Layer Location Asbestos Quantity*" Friable* 2023-0191-1-1 Texture on drywall Main floor, room 12 —wall ND 2023-0191-1-2 Texture on drywall Main floor, room 15 —wall ND 2023-0191-1-3 Texture on drywall Main floor, room 14 —wall ND 2023-0191-1-4 Texture on drywall Main floor, room 21 —wall ND 2023-0191-1-5 Texture on drywall Main floor, room 17 —wall ND 2023-0191-1-6 Texture on drywall Basement, Room 10—wall ND 2023-0191-1-7 Texture on drywall Basement, Room 10—wall ND 2023-0191-1-8 Texture on drywall Basement, Room 10—wall ND 1: Joint compound with paint 1: 3% 2023-0191-3-1 2: Joint compound Main Floor, room 14 — 2: 2% ***See below wall -joint 3: Drywall 2: ND 2023-0191-3-2 Drywall with paint Basement, room 6 — mid -wall ND 1: Carpet pad 1: ND 2: Yellow mastic 2: ND 2023-0191-3-3 3: Carpet Basement, room 1 —floor 3: ND 4: Vinyl floor tile 4: ND 5: Yellow mastic 5: ND 1: Ceramic tile 1: ND 2023-0191-3-4 Basement, room 1 —windowsill 2: Grout / leveler 2: ND 2023-0191-3-5 Mortar Basement, room 1 — glass -block ND windows 1: Caulking 1: ND 2023-0191-3-6 Basement, room 2 — counter 2: Grout 2: ND 1: Off-white ceramic tile 1: ND 2023-0191-3-7 2: White grout Basement, room 3—floor 2: ND 3: Gray leveler 3: ND 1: White caulking Basement, room 3 — shower 1: ND 2023-0191-3-8 surround2: 2: Grout ND ND None Detected The friability of this material was determined at the time of this survey. Subsequent activities such as demolition, renovation, or abatement may affect the friability of this material. ** These quantities are only an estimate of the asbestos containing material discovered on site. Accuracy of these estimates must be verified by the asbestos abatement contractor on site. *** As per WRD 23.30, this material is considered to be < 1 % asbestos containing when considered a part of the composite wall system, for demolition purposes only. NVL Laboratories, Inc. 4708 Aurora Ave N Seattle, WA 98199 Phone (206) 547-0100 • Fax (206) 634-1936 0 19515 94th PI. W. Edmonds, WA 98020 Project Number: 2023-0191 5.0 FINDINGS (CONTINUED) ;1'l� Sample Number Material Description by Layer Location Asbestos Quantity** Friable* 1: Carpet pad 1: ND 2: Carpet 2: ND 2023-0191-3-9 3: Tan vinyl floor tile Basement, room 4 — floor 3: ND 4: Tan mastic 4: ND 5: Leveler 5: ND 1: Gray ceramic tile 1: ND 2023-0191-3-10 2: White grout Basement, room 6 — hearth 2: ND 3: Gray leveler 3: ND 1: Red Brick 1: ND 2023-0191-3-11 Basement, room 6 — chimney 2: White mortar 2: ND 1: Compressed board tile 1: ND 2023-0191-3-12 2: Compressed board tile Basement, room 7—floor 2: ND 3: Backing 3: ND 1: Brown laminate 1: ND 2023-0191-3-13 2: Tan mastic Basement, room 7 — counter 2: ND 3: Caulking 3: ND 1: Gray filler Basement, room 7 — closet, 1: ND 2023-0191-3-14 2: White filler chimney penetration 2: ND 1: Gray ceramic tile 1: ND 2023-0191-3-15 2: Gray grout Basement, room 8—floor 2: ND 3: Dark Gray leveler 3: ND 1: Off-white sheet vinyl 1: ND 2023-0191-3-16 Basement, room 9 — floor 2: Backing with mastic 2: ND 1: Light blue vinyl cove -base 1: ND 2023-0191-3-17 Basement, room 9 — wall base 2: Mastic 2: ND 1: Fiberglass insulation 1: ND 2023-0191-3-18 Basement, room 10 — ceiling cavity 2: Paper with mastic 2: ND 2023-0191-3-19 Brown vinyl floor tile Basement, room 11 —floor ND 1: White ceramic tile 1: ND 2: White grout 2: ND 2023-0191-3-20 3: Tan leveler Basement, room 11 —counter 3: ND 4: Laminate 4: ND 5: Tan mastic 5: ND ND None Detected NVL Laboratories, Inc. 4708 Aurora Ave N Seattle, WA 98199 Phone (206) 547-0100 • Fax (206) 634-1936 19515 94th PI. W. Edmonds, WA 98020 Project Number: 2023-0191 5.0 FINDINGS (CONTINUED) ;1'l� Sample Number Material Description by Layer Location Asbestos Quantity** Friable* 1: ND 1: Off- white ceramic tile 2023-0191-3-21 2: White grout Main floor, rooms 12 & 14 — 2: ND 12 ft2 NO windowsills o 3: 3 /o 3: Brown mastic 1: Tan ceramic tile 1: ND 2: White Grout 2: ND 2023-0191-3-22 Main floor, room 13—floor 3: Gray leveler 3: ND 4: White grout 4: ND 1: Beige ceramic tile Main floor, room 13 — shower 1: ND 2023-0191-3-23 surround 2: Beige mastic 2: ND 1: Drywall 1: ND 2: Silicone adhesive 2: ND 2023-0191-3-24 Main floor, room 13 — counter 3: Off-white caulking 3: ND 4: Ceramic tile 4: ND 2023-0191-3-25 Black Felt Main floor, room 14—floor (under ND hardwood) 2023-0191-3-26 Yellow insulation with foil and paper Main floor, room 14 — wall cavity ND 1: Carpet 1: ND 2023-0191-3-27 2: Backing with mastic Main floor, room 16—floor 2: ND 3: Carpet pad 3: ND 1: Wallpaper 1: ND 2023-0191-3-28 2: Joint Compound Main floor, room 16 — walls 2: 2% ***Same as 3-1 3: Drywall 3: ND 1: Red brick 1: ND 2023-0191-3-29 2: Beige mortar Main floor, room 17 —fireplace 2: ND 3: Off-white leveler 3: ND 1: Backer 1: ND 2: Gray grout 2: ND 2023-0191-3-30 Main floor, room 18—floor 3: Gray slate tile 3: ND 4: White mastic 4: ND ND None Detected The friability of this material was determined at the time of this survey. Subsequent activities such as demolition, renovation, or abatement may affect the friability of this material. ** These quantities are only an estimate of the asbestos containing material discovered on site. Accuracy of these estimates must be verified by the asbestos abatement contractor on site. *** As per WRD 23.30, this material is considered to be < 1 % asbestos containing when considered a part of the composite wall system, for demolition purposes only. NVL Laboratories, Inc. 4708 Aurora Ave N Seattle, WA 98199 Phone (206) 547-0100 • Fax (206) 634-1936 10 19515 94th PI. W. Edmonds, WA 98020 Project Number: 2023-0191 5.0 FINDINGS (CONTINUED) ;1'l� Sample Number Material Description by Layer Location Asbestos Quantity** Friable* 1: Off- white sheet vilyl 1: ND 2: Tan mastic 2: ND 2023-0191-3-31 Main floor, room 19 — floor 3: White leveler 3: ND 4: Tan backer 4: ND 2023-0191-3-32 White Caulking Main floor, room 19—shower ND surround 1: Grout 1: ND 2: White ceramic tile 2: ND 2023-0191-3-33 3: Clear glass tile Main floor, room 19 — counter 3: ND ***Same as 3-1 4: White mesh with leveler 4: ND 5: Joint compound 5: 2% 1: White ceramic tile with adhesive 1: ND 2023-0191-3-34 Main floor, room 19—windowsill 2: Caulking 2: ND 1: Green sink undercoat 1: ND 2023-0191-3-35 Main floor, room 21 — sink 2: Black sealant 2: ND 1: Marble 1: ND 2023-0191-3-36 2: Caulking Main floor, room 21 — counter 2: ND 3: Leveler 3: ND 1: White paper 1: ND 2023-0191-3-37 Exterior— behind wood siding 2: Black felt 2: ND 2023-0191-3-38 White caulking Exterior —around aluminum ND framed windows 1: Caulking 1: ND 2023-0191-3-39 Exterior — glass -block windows 2: White mortar 2: ND 1: Tri-tab shingle 1: ND 2: Black mastic 2: ND 2023-0191-3-40 Exterior — roof 3: Tri-tab shingle 3: ND 4: Black felt 4: ND ND None Detected The friability of this material was determined at the time of this survey. Subsequent activities such as demolition, renovation, or abatement may affect the friability of this material. ** These quantities are only an estimate of the asbestos containing material discovered on site. Accuracy of these estimates must be verified by the asbestos abatement contractor on site. *** As per WRD 23.30, this material is considered to be <1 % asbestos containing when considered a part of the composite wall system, for demolition purposes only. Any suspect material(s) not identified above should not be disturbed and should be tested immediately. All suspect materials must be treated as asbestos -containing until testing proves otherwise. NVL Laboratories, Inc. 4708 Aurora Ave N Seattle, WA 98199 Phone (206) 547-0100 • Fax (206) 634-1936 11 19515 94th PI. W. Edmonds,N �L Project Number: 202 2023-0191 6.0 CONCLUSIONS AND RECOMMENDATIONS The following is an inventory of asbestos -containing building materials identified during the Good Faith Asbestos Inspection of the subject property: 1. Tan mastic (Non -friable) Sample number: 2023-0191-3-21 Materials Containing <1% Asbestos 1. Joint compound with paint Sample number: 2023-0191-3-1, 3-28 & 3-33 J There is approximately 12 square feet of asbestos containing tan mastic associated with the tile windowsills in rooms 12 and 14 on the main floor. There is an unknown quantity of asbestos containing joint -compound with paint associated with the interior GWB wall/ceiling system of the residence. However, as per in WRD 23.30, this material is a part of the composite wall system and is considered to be less than 1 % asbestos containing, for demolition purposes only. Regulatory Requirements for Materials Containing <1 % Asbestos • If less than 1 % asbestos is found in asbestos containing building material (ACBM), the EPA and Local Clean Air Agencies (LCAAs) do not regulate it as "asbestos containing material." • Abatement of <1 % asbestos is considered "non -classified" work by Washington State Department of Labor and Industries covered in WAC 296-62-07712 (2, 4, & 5), WAC 296-62-07722 (5), and WAC 296-62-07728. • Competent Person (with no set training requirements, however the Competent Person must have appropriate knowledge and authority to take necessary action to ensure safe work place) to conduct an exposure assessment/negative exposure assessment (NEA), as per WAC 296-62-07709-3-b. • Wet Methods (WAC 296-62-07712-2). • HEPA Vacuum (WAC 296-62-07712-2). NVL Laboratories, Inc. 4708 Aurora Ave N Seattle, WA 98199 Phone (206) 547-0100 • Fax (206) 634-1936 12 19515 94th PI. W. Edmonds, WA 98020 Project Number: 2023-0191 6.0 CONCLUSIONS AND RECOMMENDATIONS (continued) • Prompt clean up and disposal (WAC 296-62-07712-2). • Protective clothing and equipment is required if NEA is not performed (WAC 296-62-07717). • Respiratory Protection (WAC 296-62-07715 and WAC 296-842). ;1'l� Contractors should be aware that concealed suspect asbestos -containing building materials may be uncovered during the course of demolition or renovation work. Contractors should have contingency plans that include stopping work, evacuation of the immediate area and sampling by a certified AHERA Building Inspector whenever these materials are found. Concealed suspect materials may include, but are not limited to: non -fiberglass pipe or roof drain insulation; spray -applied coatings; cement board; asphalt or paper vapor barriers; floorings and adhesives. If discovered, all asbestos -containing materials that will be disturbed as a natural part of renovation and/or demolition are required to be removed and disposed of in accordance with Washington State regulations. Washington State Department of Labor and Industries and PSCAA require that the abatement be performed using Certified Asbestos Workers under the direct on -site supervision by a Certified Asbestos Supervisor. NVL recommends that an AHERA inspector/project manager be on site at the time of renovation/demolition to ensure that any potentially asbestos -containing materials uncovered during the process of renovation/demolition be dealt with properly. NVL Labs, Inc. is making the following recommendations regarding asbestos: 1. A copy of this inspection report should be maintained at the project site during the duration of renovation / demolition. 2. A copy of this inspection report should be provided to the General Contractor and any Sub Contractors working on the renovation / demolition project. 3. The inspection report is not intended to serve as a design / bidding document, or scope of work prior to renovation / demolition. 4. Abatement specifications should be prepared by a Hazardous Materials Consulting firm covering the regulated building materials that will be impacted by the renovations / demolition, and these specifications should be part of any contract documents prepared for this project. 5. A licensed asbestos abatement contractor must be utilized to remove any asbestos -containing materials that will be impacted by the planned renovation / demolition. 6. A Hazardous Materials Consulting Firm should provide project oversight and air monitoring during the removal of the asbestos -containing materials. NVL Laboratories, Inc. 4708 Aurora Ave N Seattle, WA 98199 Phone (206) 547-0100 • Fax (206) 634-1936 13 19515 94th PI. W. Edmonds, WA 98020 Project Number: 2023-0191 7.0 LIMITATIONS ;1'l� The sole purpose of this Good Faith Asbestos Inspection report is to document asbestos -containing building materials discovered at 19515 94th PI. W., Edmonds, WA 98020. The purpose of this inspection was to identify all suspect asbestos -containing building materials which would be impacted by the planned demolition of the residence. Destructive sampling methods were utilized to collect samples of suspect building materials. No soft/limited demolition was performed during this inspection. Hidden materials may exist within the structures, and all suspect materials must be treated as asbestos containing until testing proves otherwise. This site visit consisted of a thorough visual walk-through of the building for the purpose of viewing and sampling potential asbestos -containing material. As hazardous material surveys are non - comprehensive by nature, NVL Laboratories, Inc. cannot be held liable for materials which require destructive means to access, materials which are hidden from sight (e.g. materials hidden behind walls), materials which cannot be found due to their obscure nature, or which otherwise cannot be discovered with reasonable diligence. This document is the sole property of NVL Laboratories and the property owner, or his agent, authorizing this inspection. Inspected By Cameron Patterson AHERA Building Inspector AHERA Certification: # 187422 Expiration Date: January 19, 2024 Inspected By Daniel Fyffe AHERA Building Inspector AHERA Certification: # 187715 Expiration Date: February 9, 2024 Reviewed By Syed Hasan Manager Field Services AHERA Certification: # 185713 Expiration Date: July 13, 2023 NVL Laboratories, Inc. 4708 Aurora Ave N Seattle, WA 98199 Phone (206) 547-0100 • Fax (206) 634-1936 14 NVL L A B 5 Appendix,A Sample Locations (Floor Plan) NVLINDNSTNIAI LAJOEATORY + WARUNE41 � TRAIMI46 NVL Project # 2023-0191 Client Landsverk Quality Homes, Inc. - Trisha Location 19515 94th Ave W City Edmonds Page of Date 4/7/2023 Made by Cameron Patterson of 0 "hI---- .� t7 3• � z 1ZIA —A—Z-50. 5-14. :�" ►� ,u is IV `5 11 9-3.�a t-K i r-1-.3-► 10 1-6 39 �I-H .3 �"Y`1� (� � �•7 -'37 31 Phone: 206 547.0100 I Fax: 206 634.1936 j Toll Free: 1.888.NVL.LABS (685.5227) 4708 Aurora Avenue North Seattle, WA 98103-6516 NVL L A B S Appendix B Laboratory Analysis Results April 12, 2023 Cameron Patterson NVL Field Services Division 4708 Aurora Ave. N. Seattle, WA 98103 RE: Bulk Asbestos Fiber Analysis; NVL Batch # 2305603.00 Client Project: 2023-0191 Location: 19515 94th Ave W Dear Mr. Patterson, NVL INDUSTRIAL HYGIENE SERVICES LABORATORY - MANAGEMENT + TRAINING Enclosed please find test results for the 30 sample(s) submitted to our laboratory for analysis on 4/7/2023. Examination of these samples was conducted for the presence of identifiable asbestos fibers using polarized light microscopy (PLM) with dispersion staining in accordance with U. S. EPA 40 CFR Appendix E to Subpart E of Part 763, Interim Method for the Determination of Asbestos in Bulk Insulation Samples and EPA 600/R-93/116, Method for the Determination of Asbestos in Bulk Building Materials. For samples containing more than one separable layer of materials, the report will include findings for each layer (labeled Layer 1 and Layer 2, etc. for each individual layer). The asbestos concentration in the sample is determined by calibrated visual estimation. For those samples with asbestos concentrations between 1 and 10 percent based on visual estimation, the EPA recommends a procedure known as point counting (NESHAPS, 40 CFR Part 61). Point counting is a statistically more accurate means of quantification for samples with low concentrations of asbestos. The detection limit for the calibrated visual estimation is <1 %, 400 point counts is 0.25% and 1000 point counts is 0.1 % Samples are archived for two weeks following analysis. Samples that are not retrieved by the client are discarded after two weeks. Thank you for using our laboratory services. Please do not hesitate to call if there is anything further we can assist you with. Sincerely, 2ie�OL� Nick Ly, Technical Director Enc.: Sample Results IKIW�I%f Testing Lab Code 102053-0 Phone: 206 547.0100 1 Fax: 206 634.1936 Toll Free: 1.888.NVL.LABS (685.5227) 4708 Aurora Avenue North Seattle, WA 98103-6516 page 1 of 16 Bulk Asbestos Fibers Analysis HVL By Polarized Light Microscopy Client: NVL Field Services Division Batch #: 2305603.00 Address: 4708 Aurora Ave. N. Client Project #: 2023-0191 Seattle, WA 98103 Date Received: 4/7/2023 Samples Received: 30 Attention: Mr. Cameron Patterson Samples Analyzed: 30 Project Location: 19515 94th Ave W Method: EPA/600/R-93/116 Lab ID: 23034196 Client Sample #: 2023-0191-1-1 Location: 19515 94th Ave W Layer 1 of 2 Description: White compacted powdery material with paint Non -Fibrous Materials: Other Fibrous Materials:% Asbestos Type: % Calcareous binder, Calcareous particles, Paint None Detected ND None Detected ND Layer 2 of 2 Description: White chalky material with paper Non -Fibrous Materials: Other Fibrous Materials:% Asbestos Type: % Gypsum/Binder, Binder/Filler, Fine grains Cellulose 24% None Detected ND Lab ID: 23034197 Client Sample #: 2023-0191-1-2 Location: 19515 94th Ave W Layer 1 of 1 Description: White chalky material with paper and paint Non -Fibrous Materials: Other Fibrous Materials:% Asbestos Type: % Gypsum/Binder, Paint, Fine grains Cellulose 29% None Detected ND Lab ID: 23034198 Client Sample #: 2023-0191-1-3 Location: 19515 94th Ave W Layer 1 of 2 Description: White compacted powdery material with paint Non -Fibrous Materials: Other Fibrous Materials:% Asbestos Type: % Calcareous binder, Calcareous particles, Paint None Detected ND None Detected ND Layer 2 of 2 Description: White chalky material with paper Non -Fibrous Materials: Other Fibrous Materials:% Asbestos Type: % Gypsum/Binder, Binder/Filler, Fine grains Cellulose 31 % None Detected ND Lab ID: 23034199 Client Sample #: 2023-0191-1-4 Location: 19515 94th Ave W Sampled by: Client Analyzed by: Hieu Ta Date:04/10/2023 Reviewed by: Nick Ly Date:04/12/2023 Nick Ly, Technical Director Note: If samples are not homogeneous, then subsamples of the components were analyzed separately. All bulk samples are analyzed using both EPA 600/R-93/116 and EPA 40 CFR Appendix E to Subpart E of Part 763 with the following measurement uncertainties for the reported % Asbestos (1 %=0-3%, 5%=1-9%, 10%=5-15%, 20%=10-30%, 50%=40-60%). This report relates only to the items tested. If sample was not collected by NVL personnel, then the accuracy of the results is limited by the methodology and acuity of the sample collector. This report shall not be reproduced except in full, without written approval of NVL Laboratories, Inc. It shall not be used to claim product endorsement by NVLAP or any other agency of the US Government ASB-02 page 2 of 16 Bulk Asbestos Fibers Analysis HVL By Polarized Light Microscopy Client: NVL Field Services Division Batch #: 2305603.00 Address: 4708 Aurora Ave. N. Client Project #: 2023-0191 Seattle, WA 98103 Date Received: 4/7/2023 Samples Received: 30 Attention: Mr. Cameron Patterson Samples Analyzed: 30 Project Location: 19515 94th Ave W Method: EPA/600/R-93/116 Layer 1 of 1 Description: White chalky material with paper and paint Non -Fibrous Materials: Other Fibrous Materials:% Asbestos Type: % Gypsum/Binder, Paint, Fine grains Cellulose 27% None Detected ND Lab ID: 23034200 Client Sample #: 2023-0191-1-5 Location: 19515 94th Ave W Layer 1 of 1 Description: White chalky material with paper and paint Non -Fibrous Materials: Other Fibrous Materials:% Asbestos Type: % Gypsum/Binder, Paint, Fine grains Cellulose 24% None Detected ND Lab ID: 23034201 Client Sample #: 2023-0191-1-6 Location: 19515 94th Ave W Layer 1 of 3 Description: White compacted powdery material with paint and fibrous mesh Non -Fibrous Materials: Other Fibrous Materials:% Asbestos Type: % Calcareous binder, Calcareous particles, Paint Glass fibers 18% None Detected ND Layer 2 of 3 Description: White compacted powdery material with paper Non -Fibrous Materials: Other Fibrous Materials:% Asbestos Type: % Calcareous binder, Calcareous particles, Fine grains Cellulose 22% None Detected ND Layer 3 of 3 Description: White chalky material with paper Non -Fibrous Materials: Other Fibrous Materials:% Asbestos Type: % Gypsum/Binder, Binder/Filler, Fine grains Cellulose 31 % None Detected ND Lab ID: 23034202 Client Sample #: 2023-0191-1-7 Location: 19515 94th Ave W Layer 1 of 2 Description: White compacted powdery material with paint Non -Fibrous Materials: Other Fibrous Materials:% Asbestos Type: % Calcareous binder, Calcareous particles, Paint None Detected ND None Detected ND Sampled by: Client Analyzed by: Hieu Ta Date:04/10/2023 Reviewed by: Nick Ly Date:04/12/2023 Nick Ly, Technical Director Note: If samples are not homogeneous, then subsamples of the components were analyzed separately. All bulk samples are analyzed using both EPA 600/R-93/116 and EPA 40 CFR Appendix E to Subpart E of Part 763 with the following measurement uncertainties for the reported % Asbestos (1 %=0-3%, 5%=1-9%, 10%=5-15%, 20%=10-30%, 50%=40-60%). This report relates only to the items tested. If sample was not collected by NVL personnel, then the accuracy of the results is limited by the methodology and acuity of the sample collector. This report shall not be reproduced except in full, without written approval of NVL Laboratories, Inc. It shall not be used to claim product endorsement by NVLAP or any other agency of the US Government ASB-02 page 3 of 16 Bulk Asbestos Fibers Analysis By Polarized Light Microscopy Client: NVL Field Services Division Address: 4708 Aurora Ave. N. Seattle, WA 98103 Attention: Mr. Cameron Patterson Project Location: 19515 94th Ave W 00 ds NVL Batch #: 2305603.00 Client Project #: 2023-0191 Date Received: 4/7/2023 Samples Received: 30 Samples Analyzed: 30 Method: EPA/600/R-93/116 Layer 2 of 2 Description: White chalky material with paper Non -Fibrous Materials: Other Fibrous Materials:% Asbestos Type: % Gypsum/Binder, Binder/Filler, Fine grains Cellulose 25% None Detected ND Lab ID: 23034203 Client Sample #: 2023-0191-1-8 Location: 19515 94th Ave W Layer 1 of 1 Description: White chalky material with paper and paint Non -Fibrous Materials: Other Fibrous Materials:% Gypsum/Binder, Paint, Fine grains Cellulose 36% Lab ID: 23034204 Client Sample #: 2023-0191-3-1 Location: 19515 94th Ave W Comments: Composite result (per client request) for whole sample is less than 1 % asbestos. Layer 1 of 3 Description: Off-white compacted powdery material with paint Non -Fibrous Materials: Other Fibrous Materials:% Calcareous binder, Calcareous particles, Paint None Detected ND Layer 2 of 3 Description: Off-white compacted powdery material with paper Non -Fibrous Materials: Other Fibrous Materials:% Calcareous binder, Calcareous particles, Fine grains Cellulose 17% Layer 3 of 3 Description: White chalky material with paper Non -Fibrous Materials: Other Fibrous Materials:% Gypsum/Binder, Binder/Filler, Fine grains Cellulose 33% Lab ID: 23034205 Client Sample #: 2023-0191-3-2 Location: 19515 94th Ave W Layer 1 of 1 Description: White chalky material with paper and paint Non -Fibrous Materials: Other Fibrous Materials:% Gypsum/Binder, Paint, Fine grains Cellulose 26% Asbestos Type: % None Detected ND Asbestos Type: % Chrysotile 3% Asbestos Type: % Chrysotile 2% Asbestos Type: % None Detected ND Asbestos Type: % None Detected ND Sampled by: Client Analyzed by: Hieu Ta Date:04/10/2023 Reviewed by: Nick Ly Date:04/12/2023 Nick Ly, Technical Director Note: If samples are not homogeneous, then subsamples of the components were analyzed separately. All bulk samples are analyzed using both EPA 600/R-93/116 and EPA 40 CFR Appendix E to Subpart E of Part 763 with the following measurement uncertainties for the reported % Asbestos (1 %=0-3%, 5%=1-9%, 10%=5-15%, 20%=10-30%, 50%=40-60%). This report relates only to the items tested. If sample was not collected by NVL personnel, then the accuracy of the results is limited by the methodology and acuity of the sample collector. This report shall not be reproduced except in full, without written approval of NVL Laboratories, Inc. It shall not be used to claim product endorsement by NVLAP or any other agency of the US Government ASB-02 page 4 of 16 Bulk Asbestos Fibers Analysis HVL By Polarized Light Microscopy Client: NVL Field Services Division Batch #: 2305603.00 Address: 4708 Aurora Ave. N. Client Project #: 2023-0191 Seattle, WA 98103 Date Received: 4/7/2023 Samples Received: 30 Attention: Mr. Cameron Patterson Samples Analyzed: 30 Project Location: 19515 94th Ave W Method: EPA/600/R-93/116 Lab ID: 23034206 Client Sample #: 2023-0191-3-3 Location: 19515 94th Ave W Layer 1 of 5 Description: White foamy material with coating Non -Fibrous Materials: Other Fibrous Materials:% Asbestos Type: % Synthetic/Binder, Synthetic foam, Debris None Detected ND None Detected ND Layer 2 of 5 Description: Yellow mastic Non -Fibrous Materials: Other Fibrous Materials:% Asbestos Type: % Mastic/Binder, Debris, Fine particles None Detected ND None Detected ND Layer 3 of 5 Description: White woven fibrous material with backing and plastic mesh Non -Fibrous Materials: Other Fibrous Materials:% Asbestos Type: % Synthetic/Binder, Plastic, Debris Synthetic fibers 84% None Detected ND Layer 4 of 5 Description: Tan vinyl Non -Fibrous Materials: Other Fibrous Materials:% Asbestos Type: % Vinyl/Binder, Debris, Fine particles None Detected ND None Detected ND Layer 5 of 5 Description: Yellow mastic with debris Non -Fibrous Materials: Other Fibrous Materials:% Asbestos Type: % Mastic/Binder, Debris, Fine particles None Detected ND None Detected ND Lab ID: 23034207 Client Sample #: 2023-0191-3-4 Location: 19515 94th Ave W Layer 1 of 2 Description: White ceramic the Non -Fibrous Materials: Other Fibrous Materials:% Asbestos Type: % Ceramic/Binder, Mineral grains, Fine particles None Detected ND None Detected ND Layer 2 of 2 Description: White crumbly material Non -Fibrous Materials: Other Fibrous Materials:% Asbestos Type: % Binder/Filler, Mineral grains, Fine particles None Detected ND None Detected ND Sampled by: Client Analyzed by: Hieu Ta Date:04/10/2023 Reviewed by: Nick Ly Date:04/12/2023 Nick Ly, Technical Director Note: If samples are not homogeneous, then subsamples of the components were analyzed separately. All bulk samples are analyzed using both EPA 600/R-93/116 and EPA 40 CFR Appendix E to Subpart E of Part 763 with the following measurement uncertainties for the reported % Asbestos (1 %=0-3%, 5%=1-9%, 10%=5-15%, 20%=10-30%, 50%=40-60%). This report relates only to the items tested. If sample was not collected by NVL personnel, then the accuracy of the results is limited by the methodology and acuity of the sample collector. This report shall not be reproduced except in full, without written approval of NVL Laboratories, Inc. It shall not be used to claim product endorsement by NVLAP or any other agency of the US Government ASB-02 page 5 of 16 Bulk Asbestos Fibers Analysis HVL By Polarized Light Microscopy Client: NVL Field Services Division Batch #: 2305603.00 Address: 4708 Aurora Ave. N. Client Project #: 2023-0191 Seattle, WA 98103 Date Received: 4/7/2023 Samples Received: 30 Attention: Mr. Cameron Patterson Samples Analyzed: 30 Project Location: 19515 94th Ave W Method: EPA/600/R-93/116 Lab ID: 23034208 Client Sample #: 2023-0191-3-5 Location: 19515 94th Ave W Layer 1 of 1 Description: White crumbly material Non -Fibrous Materials: Binder/Filler, Mineral grains, Fine particles Other Fibrous Materials:% None Detected ND Asbestos Type: % None Detected ND Lab ID: 23034209 Client Sample #: 2023-0191-3-6 Location: 19515 94th Ave W Layer 1 of 2 Description: White soft material Non -Fibrous Materials: Other Fibrous Materials:% Asbestos Type: % Synthetic/Binder, Debris, Fine particles None Detected ND None Detected ND Layer 2 of 2 Description: White compacted powdery material with paint Non -Fibrous Materials: Other Fibrous Materials:% Asbestos Type: % Calcareous binder, Calcareous particles, Paint None Detected ND None Detected ND Lab ID: 23034210 Client Sample #: 2023-0191-3-7 Location: 19515 94th Ave W Layer 1 of 3 Description: Off-white ceramic the Non -Fibrous Materials: Other Fibrous Materials:% Asbestos Type: % Ceramic/Binder, Mineral grains, Debris None Detected ND None Detected ND Layer 2 of 3 Description: White crumbly material Non -Fibrous Materials: Other Fibrous Materials:% Asbestos Type: % Binder/Filler, Mineral grains, Fine particles None Detected ND None Detected ND Layer 3 of 3 Description: Gray crumbly material Non -Fibrous Materials: Other Fibrous Materials:% Asbestos Type: % Binder/Filler, Mineral grains, Fine particles None Detected ND None Detected ND Sampled by: Client Analyzed by: Hieu Ta Date:04/10/2023 Reviewed by: Nick Ly Date:04/12/2023 Nick Ly, Technical Director Note: If samples are not homogeneous, then subsamples of the components were analyzed separately. All bulk samples are analyzed using both EPA 600/R-93/116 and EPA 40 CFR Appendix E to Subpart E of Part 763 with the following measurement uncertainties for the reported % Asbestos (1 %=0-3%, 5%=1-9%, 10%=5-15%, 20%=10-30%, 50%=40-60%). This report relates only to the items tested. If sample was not collected by NVL personnel, then the accuracy of the results is limited by the methodology and acuity of the sample collector. This report shall not be reproduced except in full, without written approval of NVL Laboratories, Inc. It shall not be used to claim product endorsement by NVLAP or any other agency of the US Government ASB-02 page 6 of 16 Bulk Asbestos Fibers Analysis By Polarized Light Microscopy Client: NVL Field Services Division Address: 4708 Aurora Ave. N. Seattle, WA 98103 Attention: Mr. Cameron Patterson Project Location: 19515 94th Ave W Lab ID: 23034211 Client Sample #: 2023-0191-3-8 Location: 19515 94th Ave W Layer 1 of 2 Description: White soft material Non -Fibrous Materials: Other Fibrous Materials:% Synthetic/Binder, Debris, Fine particles None Detected ND Layer 2 of 2 Description: White compacted powdery material with paint Non -Fibrous Materials: Other Fibrous Materials:% Calcareous binder, Calcareous particles, Paint None Detected ND Lab ID: 23034212 Client Sample #: 2023-0191-3-9 Location: 19515 94th Ave W Layer 1 of 5 Description: White foamy material with coating Non -Fibrous Materials: Other Fibrous Materials:% Synthetic/Binder, Synthetic foam, Debris None Detected ND Layer 2 of 5 Description: White woven fibrous material with backing and plastic mesh Non -Fibrous Materials: Other Fibrous Materials:% Synthetic/Binder, Plastic, Debris Synthetic fibers 85% Layer 3 of 5 Description: Tan vinyl Non -Fibrous Materials: Other Fibrous Materials:% Vinyl/Binder, Debris, Fine particles None Detected ND Layer 4 of 5 Description: Tan mastic Non -Fibrous Materials: Other Fibrous Materials:% Mastic/Binder, Debris, Fine particles None Detected ND Layer 5 of 5 Description: White crumbly material Non -Fibrous Materials: Other Fibrous Materials:% Binder/Filler, Debris, Fine particles None Detected ND 00 ds NVL Batch #: 2305603.00 Client Project #: 2023-0191 Date Received: 4/7/2023 Samples Received: 30 Samples Analyzed: 30 Method: EPA/600/R-93/116 Asbestos Type: % None Detected ND Asbestos Type: % None Detected ND Asbestos Type: % None Detected ND Asbestos Type: % None Detected ND Asbestos Type: % None Detected ND Asbestos Type: % None Detected ND Asbestos Type: % None Detected ND Sampled by: Client Analyzed by: Hieu Ta Date:04/10/2023 Reviewed by: Nick Ly Date:04/12/2023 Nick Ly, Technical Director Note: If samples are not homogeneous, then subsamples of the components were analyzed separately. All bulk samples are analyzed using both EPA 600/R-93/116 and EPA 40 CFR Appendix E to Subpart E of Part 763 with the following measurement uncertainties for the reported % Asbestos (1 %=0-3%, 5%=1-9%, 10%=5-15%, 20%=10-30%, 50%=40-60%). This report relates only to the items tested. If sample was not collected by NVL personnel, then the accuracy of the results is limited by the methodology and acuity of the sample collector. This report shall not be reproduced except in full, without written approval of NVL Laboratories, Inc. It shall not be used to claim product endorsement by NVLAP or any other agency of the US Government ASB-02 page 7 of 16 Bulk Asbestos Fibers Analysis By Polarized Light Microscopy Client: NVL Field Services Division Address: 4708 Aurora Ave. N. Seattle, WA 98103 Attention: Mr. Cameron Patterson Project Location: 19515 94th Ave W Lab ID: 23034213 Client Sample #: 2023-0191-3-10 Location: 19515 94th Ave W Layer 1 of 3 Description: Gray ceramic tile Non -Fibrous Materials: Ceramic/Binder, Mineral grains, Fine particles Layer 2 of 3 Description: White crumbly material Non -Fibrous Materials: Binder/Filler, Mineral grains, Fine particles Layer 3 of 3 Description: Gray crumbly material Non -Fibrous Materials: Binder/Filler, Mineral grains, Fine particles Lab ID: 23034214 Client Sample #: 2023-0191-3-11 Location: 19515 94th Ave W Layer 1 of 2 Description: Red brittle material Non -Fibrous Materials: Binder/Filler, Brick, Mineral grains Layer 2 of 2 Description: White crumbly material Non -Fibrous Materials: Binder/Filler, Mineral grains, Fine particles Lab ID: 23034215 Client Sample #: 2023-0191-3-12 Location: 19515 94th Ave W Other Fibrous Materials:% None Detected ND Other Fibrous Materials:% None Detected ND Other Fibrous Materials:% None Detected ND Other Fibrous Materials:% None Detected ND Other Fibrous Materials:% None Detected ND Layer 1 of 3 Description: Brown compressed fibrous material with surface Non -Fibrous Materials: Other Fibrous Materials:% Binder/Filler, Debris, Fine particles Cellulose 94% 00 ds NVL Batch #: 2305603.00 Client Project #: 2023-0191 Date Received: 4/7/2023 Samples Received: 30 Samples Analyzed: 30 Method: EPA/600/R-93/116 Asbestos Type: % None Detected ND Asbestos Type: % None Detected ND Asbestos Type: % None Detected ND Asbestos Type: % None Detected ND Asbestos Type: % None Detected ND Asbestos Type: % None Detected ND Sampled by: Client Analyzed by: Hieu Ta Date:04/10/2023 Reviewed by: Nick Ly Date:04/12/2023 Nick Ly, Technical Director Note: If samples are not homogeneous, then subsamples of the components were analyzed separately. All bulk samples are analyzed using both EPA 600/R-93/116 and EPA 40 CFR Appendix E to Subpart E of Part 763 with the following measurement uncertainties for the reported % Asbestos (1 %=0-3%, 5%=1-9%, 10%=5-15%, 20%=10-30%, 50%=40-60%). This report relates only to the items tested. If sample was not collected by NVL personnel, then the accuracy of the results is limited by the methodology and acuity of the sample collector. This report shall not be reproduced except in full, without written approval of NVL Laboratories, Inc. It shall not be used to claim product endorsement by NVLAP or any other agency of the US Government ASB-02 page 8 of 16 Bulk Asbestos Fibers Analysis By Polarized Light Microscopy Client: NVL Field Services Division Address: 4708 Aurora Ave. N. Seattle, WA 98103 Attention: Mr. Cameron Patterson Project Location: 19515 94th Ave W 00 ds NVL Batch #: 2305603.00 Client Project #: 2023-0191 Date Received: 4/7/2023 Samples Received: 30 Samples Analyzed: 30 Method: EPA/600/R-93/116 Layer 2 of 3 Description: Brown flat hard compressed fibrous material with surface Non -Fibrous Materials: Other Fibrous Materials:% Asbestos Type: % Binder/Filler, Debris, Fine particles Cellulose 97% None Detected ND Layer 3 of 3 Description: White fibrous material with foam and plastic Non -Fibrous Materials: Other Fibrous Materials:% Asbestos Type: % Synthetic/Binder, Synthetic foam, Plastic Synthetic fibers 33% None Detected ND Lab ID: 23034216 Client Sample #: 2023-0191-3-13 Location: 19515 94th Ave W Layer 1 of 3 Description: Brown flat hard compressed fibrous material with surface Non -Fibrous Materials: Other Fibrous Materials:% Asbestos Type: % Binder/Filler, Debris, Fine particles Cellulose 92% None Detected ND Layer 2 of 3 Description: Tan mastic with debris Non -Fibrous Materials: Other Fibrous Materials:% Asbestos Type: % Mastic/Binder, Debris, Fine particles Cellulose 8% None Detected ND Layer 3 of 3 Description: White soft material with paint Non -Fibrous Materials: Other Fibrous Materials:% Asbestos Type: % Synthetic/Binder, Paint, Debris None Detected ND None Detected ND Lab ID: 23034217 Client Sample #: 2023-0191-3-14 Location: 19515 94th Ave W Layer 1 of 2 Description: Gray crumbly material Non -Fibrous Materials: Other Fibrous Materials:% Binder/Filler, Debris, Fine particles Wollastonite 4% Mineral fibers 2% Asbestos Type: % None Detected ND Sampled by: Client Analyzed by: Hieu Ta Date:04/10/2023 Reviewed by: Nick Ly Date:04/12/2023 Nick Ly, Technical Director Note: If samples are not homogeneous, then subsamples of the components were analyzed separately. All bulk samples are analyzed using both EPA 600/R-93/116 and EPA 40 CFR Appendix E to Subpart E of Part 763 with the following measurement uncertainties for the reported % Asbestos (1 %=0-3%, 5%=1-9%, 10%=5-15%, 20%=10-30%, 50%=40-60%). This report relates only to the items tested. If sample was not collected by NVL personnel, then the accuracy of the results is limited by the methodology and acuity of the sample collector. This report shall not be reproduced except in full, without written approval of NVL Laboratories, Inc. It shall not be used to claim product endorsement by NVLAP or any other agency of the US Government ASB-02 page 9 of 16 Bulk Asbestos Fibers Analysis By Polarized Light Microscopy Client: NVL Field Services Division Address: 4708 Aurora Ave. N. Seattle, WA 98103 Attention: Mr. Cameron Patterson Project Location: 19515 94th Ave W 00 ds NVL Batch #: 2305603.00 Client Project #: 2023-0191 Date Received: 4/7/2023 Samples Received: 30 Samples Analyzed: 30 Method: EPA/600/R-93/116 Layer 2 of 2 Description: White crumbly material Non -Fibrous Materials: Other Fibrous Materials:% Asbestos Type: % Binder/Filler, Debris, Fine particles Mineral fibers 3% None Detected ND Lab ID: 23034218 Client Sample #: 2023-0191-3-15 Location: 19515 94th Ave W Layer 1 of 3 Description: Gray ceramic tile Non -Fibrous Materials: Ceramic/Binder, Mineral grains, Debris Layer 2 of 3 Description: Light gray crumbly material Non -Fibrous Materials: Binder/Filler, Mineral grains, Fine particles Layer 3 of 3 Description: Dark gray crumbly material Non -Fibrous Materials: Binder/Filler, Mineral grains, Fine particles Other Fibrous Materials:% Asbestos Type: % None Detected ND None Detected ND Other Fibrous Materials:% Asbestos Type: % None Detected ND None Detected ND Other Fibrous Materials:% Asbestos Type: % None Detected ND None Detected ND Lab ID: 23034219 Client Sample #: 2023-0191-3-16 Location: 19515 94th Ave W Layer 1 of 2 Description: White patterned sheet vinyl Non -Fibrous Materials: Other Fibrous Materials:% Asbestos Type: % Vinyl/Binder, Synthetic foam, Debris None Detected ND None Detected ND Layer 2 of 2 Description: White fibrous backing with mastic Non -Fibrous Materials: Other Fibrous Materials:% Asbestos Type: % Mastic/Binder, Debris, Fine particles Cellulose 52% None Detected ND Glass fibers 23% Lab ID: 23034220 Client Sample #: 2023-0191-3-17 Location: 19515 94th Ave W Sampled by: Client Analyzed by: Hieu Ta Date:04/10/2023 Reviewed by: Nick Ly Date:04/12/2023 Nick Ly, Technical Director Note: If samples are not homogeneous, then subsamples of the components were analyzed separately. All bulk samples are analyzed using both EPA 600/R-93/116 and EPA 40 CFR Appendix E to Subpart E of Part 763 with the following measurement uncertainties for the reported % Asbestos (1 %=0-3%, 5%=1-9%, 10%=5-15%, 20%=10-30%, 50%=40-60%). This report relates only to the items tested. If sample was not collected by NVL personnel, then the accuracy of the results is limited by the methodology and acuity of the sample collector. This report shall not be reproduced except in full, without written approval of NVL Laboratories, Inc. It shall not be used to claim product endorsement by NVLAP or any other agency of the US Government ASB-02 page 10 of 16 Bulk Asbestos Fibers Analysis By Polarized Light Microscopy Client: NVL Field Services Division Address: 4708 Aurora Ave. N. Seattle, WA 98103 Attention: Mr. Cameron Patterson Project Location: 19515 94th Ave W 00 ds NVL Batch #: 2305603.00 Client Project #: 2023-0191 Date Received: 4/7/2023 Samples Received: 30 Samples Analyzed: 30 Method: EPA/600/R-93/116 Layer 1 of 2 Description: Blue rubbery material Non -Fibrous Materials: Other Fibrous Materials:% Asbestos Type: % Rubber/Synthetic Binder, Debris, Fine particles Cellulose 3% None Detected ND Layer 2 of 2 Description: Tan mastic with trace paint and debris Non -Fibrous Materials: Other Fibrous Materials:% Asbestos Type: % Mastic/Binder, Paint, Debris Cellulose 2% None Detected ND Lab ID: 23034221 Client Sample #: 2023-0191-3-18 Location: 19515 94th Ave W Layer 1 of 2 Description: Yellow fluffy fibrous material Non -Fibrous Materials: Other Fibrous Materials:% Asbestos Type: % Binder/Filler, Debris, Fine particles Glass fibers 97% None Detected ND Layer 2 of 2 Description: Black asphaltic material with paper Non -Fibrous Materials: Other Fibrous Materials:% Asbestos Type: % Asphalt/Binder, Asphaltic Particles, Debris Cellulose 33% None Detected ND Lab ID: 23034222 Client Sample #: 2023-0191-3-19 Location: 19515 94th Ave W Layer 1 of 1 Description: Brown wood -patterned vinyl Non -Fibrous Materials: Other Fibrous Materials:% Asbestos Type: % Vinyl/Binder, Debris, Fine particles Glass fibers 8% None Detected ND Lab ID: 23034223 Client Sample #: 2023-0191-3-20 Location: 19515 94th Ave W Layer 1 of 5 Description: White ceramic tile Non -Fibrous Materials: Other Fibrous Materials:% Asbestos Type: % Ceramic/Binder, Mineral grains, Fine particles None Detected ND None Detected ND Sampled by: Client Analyzed by: Hieu Ta Date:04/10/2023 Reviewed by: Nick Ly Date:04/12/2023 Nick Ly, Technical Director Note: If samples are not homogeneous, then subsamples of the components were analyzed separately. All bulk samples are analyzed using both EPA 600/R-93/116 and EPA 40 CFR Appendix E to Subpart E of Part 763 with the following measurement uncertainties for the reported % Asbestos (1 %=0-3%, 5%=1-9%, 10%=5-15%, 20%=10-30%, 50%=40-60%). This report relates only to the items tested. If sample was not collected by NVL personnel, then the accuracy of the results is limited by the methodology and acuity of the sample collector. This report shall not be reproduced except in full, without written approval of NVL Laboratories, Inc. It shall not be used to claim product endorsement by NVLAP or any other agency of the US Government ASB-02 page 11 of 16 Bulk Asbestos Fibers Analysis HVL By Polarized Light Microscopy Client: NVL Field Services Division Batch #: 2305603.00 Address: 4708 Aurora Ave. N. Client Project #: 2023-0191 Seattle, WA 98103 Date Received: 4/7/2023 Samples Received: 30 Attention: Mr. Cameron Patterson Samples Analyzed: 30 Project Location: 19515 94th Ave W Method: EPA/600/R-93/116 Layer 2 of 5 Description: White crumbly material Non -Fibrous Materials: Other Fibrous Materials:% Asbestos Type: % Binder/Filler, Mineral grains, Fine particles None Detected ND None Detected ND Layer 3 of 5 Description: Tan crumbly material Non -Fibrous Materials: Other Fibrous Materials:% Asbestos Type: % Binder/Filler, Mineral grains, Fine particles None Detected ND None Detected ND Layer 4 of 5 Description: Brown flat hard compressed fibrous material with surface Non -Fibrous Materials: Other Fibrous Materials:% Asbestos Type: % Binder/Filler, Debris, Fine particles Cellulose 91 % None Detected ND Layer 5 of 5 Description: Tan mastic Non -Fibrous Materials: Other Fibrous Materials:% Asbestos Type: % Mastic/Binder, Debris, Fine particles None Detected ND None Detected ND Lab ID: 23034224 Client Sample #: 2023-0191-3-21 Location: 19515 94th Ave W Layer 1 of 3 Description: Off-white ceramic the Non -Fibrous Materials: Other Fibrous Materials:% Asbestos Type: % Ceramic/Binder, Mineral grains, Fine particles None Detected ND None Detected ND Layer 2 of 3 Description: White crumbly material Non -Fibrous Materials: Other Fibrous Materials:% Asbestos Type: % Binder/Filler, Mineral grains, Fine particles None Detected ND None Detected ND Layer 3 of 3 Description: Brown mastic Non -Fibrous Materials: Other Fibrous Materials:% Asbestos Type: % Mastic/Binder, Debris, Fine particles None Detected ND Chrysotile 3% Lab ID: 23034225 Client Sample #: 2023-0191-3-22 Location: 19515 94th Ave W Sampled by: Client Analyzed by: Hieu Ta Date:04/10/2023 Reviewed by: Nick Ly Date:04/12/2023 Nick Ly, Technical Director Note: If samples are not homogeneous, then subsamples of the components were analyzed separately. All bulk samples are analyzed using both EPA 600/R-93/116 and EPA 40 CFR Appendix E to Subpart E of Part 763 with the following measurement uncertainties for the reported % Asbestos (1 %=0-3%, 5%=1-9%, 10%=5-15%, 20%=10-30%, 50%=40-60%). This report relates only to the items tested. If sample was not collected by NVL personnel, then the accuracy of the results is limited by the methodology and acuity of the sample collector. This report shall not be reproduced except in full, without written approval of NVL Laboratories, Inc. It shall not be used to claim product endorsement by NVLAP or any other agency of the US Government ASB-02 page 12 of 16 Bulk Asbestos Fibers Analysis By Polarized Light Microscopy Client: NVL Field Services Division Address: 4708 Aurora Ave. N. Seattle, WA 98103 Attention: Mr. Cameron Patterson Project Location: 19515 94th Ave W Layer 1 of 4 Description: Tan ceramic tile with debris Non -Fibrous Materials: Ceramic/Binder, Mineral grains, Debris Layer 2 of 4 Description: White crumbly material Non -Fibrous Materials: Binder/Filler, Mineral grains, Fine particles Layer 3 of 4 Description: Gray crumbly material Non -Fibrous Materials: Binder/Filler, Mineral grains, Fine particles Layer 4 of 4 Description: White brittle material Non -Fibrous Materials: Binder/Filler, Mineral grains, Fine particles 00 ds NVL Batch #: 2305603.00 Client Project #: 2023-0191 Date Received: 4/7/2023 Samples Received: 30 Samples Analyzed: 30 Method: EPA/600/R-93/116 Other Fibrous Materials:% Asbestos Type: % Synthetic fibers 2% None Detected ND Cellulose 2% Other Fibrous Materials:% Asbestos Type: % None Detected ND None Detected ND Other Fibrous Materials:% Asbestos Type: % None Detected ND None Detected ND Other Fibrous Materials:% Asbestos Type: % None Detected ND None Detected ND Sampled by: Client Analyzed by: Hieu Ta Date:04/10/2023 Reviewed by: Nick Ly Date:04/12/2023 Nick Ly, Technical Director Note: If samples are not homogeneous, then subsamples of the components were analyzed separately. All bulk samples are analyzed using both EPA 600/R-93/116 and EPA 40 CFR Appendix E to Subpart E of Part 763 with the following measurement uncertainties for the reported % Asbestos (1 %=0-3%, 5%=1-9%, 10%=5-15%, 20%=10-30%, 50%=40-60%). This report relates only to the items tested. If sample was not collected by NVL personnel, then the accuracy of the results is limited by the methodology and acuity of the sample collector. This report shall not be reproduced except in full, without written approval of NVL Laboratories, Inc. It shall not be used to claim product endorsement by NVLAP or any other agency of the US Government ASB-02 page 13 of 16 ASBESTOS LABORATORY SERVICES _ '14 NVL Company NVL Field Services Division Address 4708 Aurora Ave. N. Seattle, WA 98103 Project Manager Mr. Cameron Patterson Phone (206) 547-0100 Project Name/Number: 2023-0191 NVL Batch Number 2305603.00 TAT 3 Days AH No Rush TAT Due Date 4/12/2023 Time 12:50 PM Email cameron.panvllabs, com Fax (206) 634-1936 Project Location: 19515 94th Ave W Subcategory PLM Bulk Item Code ASB-02 EPA 600/R-93-116 Asbestos by PLM <bulk> Total Number of Samples 30 Lab ID Sample ID Description Rush Samples A/R 1 23034196 2023-0191-1-1 A 2 23034197 2023-0191-1-2 A 3 23034198 2023-0191-1-3 A 4 23034199 2023-0191-1-4 A 5 123034200 2023-0191-1-5 A 6 23034201 2023-0191-1-6 A 7 23034202 2023-0191-1-7 A 8 23034203 2023-0191-1-8 A 9 23034204 2023-0191-3-1 Composite A 10 23034205 2023-0191-3-2 A 11 23034206 2023-0191-3-3 A 12 123034207 2023-0191-3-4 A 13 23034208 2023-0191-3-5 A 14 23034209 2023-0191-3-6 A 15 23034210 2023-0191-3-7 A 16 23034211 2023-0191-3-8 A 17 23034212 2023-0191-3-9 A 18 23034213 2023-0191-3-10 A Print Name Signature Company Date Time Sampled by Client Relinquished by Client Office Use Onlv Print Name Sianature Comoanv Date Time Received by Fatima Khan NVL 4/7/23 1250 Analyzed by Hieu Ta NVL 4/10/23 Results Called by ❑ Faxed ❑ Emailed Special Instructions: Date: 4/7/2023 Time: 12:51 PM Entered By: Kelly AuVu page 14 of 16 ASBESTOS LABORATORY SERVICES _ '14 NVL Company NVL Field Services Division Address 4708 Aurora Ave. N. Seattle, WA 98103 Project Manager Mr. Cameron Patterson Phone (206) 547-0100 Project Name/Number: 2023-0191 NVL Batch Number 2305603.00 TAT 3 Days AH No Rush TAT Due Date 4/12/2023 Time 12:50 PM Email cameron.panvllabs, com Fax (206) 634-1936 Project Location: 19515 94th Ave W Subcategory PLM Bulk Item Code ASB-02 EPA 600/R-93-116 Asbestos by PLM <bulk> Total Number of Samples 30 Lab ID Sample ID Description Rush Samples A/R 19 23034214 2023-0191-3-11 A 20 23034215 2023-0191-3-12 A 21 23034216 2023-0191-3-13 A 22 23034217 2023-0191-3-14 A 23 123034218 2023-0191-3-15 A 24 23034219 2023-0191-3-16 A 25 23034220 2023-0191-3-17 A 26 23034221 2023-0191-3-18 A 27 23034222 2023-0191-3-19 A 28 23034223 2023-0191-3-20 A 29 23034224 2023-0191-3-21 A 30 23034225 2023-0191-3-22 A Print Name Signature Company Date Time Sampled by Client Relinquished by Client Office Use Onlv Print Name Sianature Comoanv Date Time Received by Fatima Khan NVL 4/7/23 1250 Analyzed by Hieu Ta NVL 4/10/23 Results Called by ❑ Faxed ❑ Emailed Special Instructions: Date: 4/7/2023 Time: 12:51 PM Entered By: Kelly AuVu page 15 of 16 Client NVL Laboratories Inc Street 4708 Aurora Ave N Seattle. WA 98103 Project Manager S ed Hasan Project Location 19515 94th Ave W CHAIN of CUSTODY SAMPLE LOG 2305603 NVL Batch Number Client Job Number 2023-0191 Total Samples d Turn Around Time ❑ 1 Hr ❑ 6 Hrs [3 Days ❑ 10 Days ❑ 2 Hrs ❑ 1 Day ❑ 4 Days ❑ 4 Hrs ❑ 2 Days ❑ 5 Days Please call for TAT less than 24 Hn Email address trisha ._Iqh-inc.com Phone: (425) 742-2742 Fax: ❑ Asbestos Air ❑ PCM (NIOSH 7400) ❑ TEM (NIOSH 7402) ❑ TEM (AHERA) ❑ TEM (EPA Level II) ❑ Other Asbestos Bulk P.LM (EPA/600/R-93/11.6) ❑ PLM (EPA Point Count) ❑ PLM (EPA Gravimetry) ❑ TEM BULK ❑ Mold/Fungus ILI Mold Air ❑ Mold Bulk ❑ Rotometer Calibration Det. Limit Matrix RCRA Metals All 8 Other Metals ❑ All 3 METALS ❑ Total Metals ❑ Soil ❑ FAA (ppm) Air Filter ❑ ❑Arsenic (As) El (Cr ❑ Copper (Cu) ❑ TCLP ❑ ICP (ppm) ❑ Drinking water ❑ Paint Chips in % ❑ Barium (Ba) ❑ Lead (Pb) ❑ Nickel (Ni) ❑ Cr 6 GFAA(ppb)❑Dust/wi a (Area) ❑ Paint Chips in crr❑Cadmium (Cd) ❑Mercu ❑ Zinc (Zn) ❑Other Types ❑ Fiberglass ❑ Nuisance Dust ❑ Other (Specify) of Analysis i] Silica F-1 RPsnimhlP Dij-t Condition of Package: ❑ Good ❑ Damaged (no spillage) ❑Severe damage (spillage) Seg. # Lab ID Client Sample Number Comments AIR --3$ 2 I -Z 5- `1 3 4 5 I-5 3-12- 6 3-r 7 ItA 8 9 3-\ 10 11 12 13 14 3- (v 2\ 15 �-I V3-1.2 Sampled b 'NrE4ZorJ NVIr r'J_c70 Relin uished bK N\J 71 Received b Analyzed b Results Called b Results Faxed by Sp�strr: Unless requested in writing, all samples will be disposed of two (2) weeks after analysis. R page 16 of 16 April 12, 2023 Cameron Patterson NVL Field Services Division 4708 Aurora Ave. N. Seattle, WA 98103 RE: Bulk Asbestos Fiber Analysis; NVL Batch # 2305604.00 Client Project: 2023-0191 Location: 19515 94th Ave W Dear Mr. Patterson, NVL INDUSTRIAL HYGIENE SERVICES LABORATORY - MANAGEMENT + TRAINING Enclosed please find test results for the 18 sample(s) submitted to our laboratory for analysis on 4/7/2023. Examination of these samples was conducted for the presence of identifiable asbestos fibers using polarized light microscopy (PLM) with dispersion staining in accordance with U. S. EPA 40 CFR Appendix E to Subpart E of Part 763, Interim Method for the Determination of Asbestos in Bulk Insulation Samples and EPA 600/R-93/116, Method for the Determination of Asbestos in Bulk Building Materials. For samples containing more than one separable layer of materials, the report will include findings for each layer (labeled Layer 1 and Layer 2, etc. for each individual layer). The asbestos concentration in the sample is determined by calibrated visual estimation. For those samples with asbestos concentrations between 1 and 10 percent based on visual estimation, the EPA recommends a procedure known as point counting (NESHAPS, 40 CFR Part 61). Point counting is a statistically more accurate means of quantification for samples with low concentrations of asbestos. The detection limit for the calibrated visual estimation is <1 %, 400 point counts is 0.25% and 1000 point counts is 0.1 % Samples are archived for two weeks following analysis. Samples that are not retrieved by the client are discarded after two weeks. Thank you for using our laboratory services. Please do not hesitate to call if there is anything further we can assist you with. Sincerely, R,1%f A - O [K]NOMA Kunga Woser, Senior Laboratory Analyst Testing Lab Code 102053-0 Enc.: Sample Results Phone: 206 547.0100 1 Fax: 206 634.1936 Toll Free: 1.888.NVL.LABS (685.5227) 4708 Aurora Avenue North Seattle, WA 98103-6516 page 1 of 11 Bulk Asbestos Fibers Analysis HVL By Polarized Light Microscopy Client: NVL Field Services Division Batch #: 2305604.00 Address: 4708 Aurora Ave. N. Client Project #: 2023-0191 Seattle, WA 98103 Date Received: 4/7/2023 Samples Received: 18 Attention: Mr. Cameron Patterson Samples Analyzed: 18 Project Location: 19515 94th Ave W Method: EPA/600/R-93/116 Lab ID: 23034226 Client Sample #: 2023-0191-3-23 Location: 19515 94th Ave W Layer 1 of 2 Description: Beige ceramic tile Non -Fibrous Materials: Other Fibrous Materials:% Asbestos Type: % Ceramic/Binder, Fine particles None Detected ND None Detected ND Layer 2 of 2 Description: Beige brittle material with granules Non -Fibrous Materials: Other Fibrous Materials:% Asbestos Type: % Binder/Filler, Granules, Mineral grains Cellulose <1 % None Detected ND Lab ID: 23034227 Client Sample #: 2023-0191-3-24 Location: 19515 94th Ave W Layer 1 of 4 Description: White compacted powdery material with paper & paint Non -Fibrous Materials: Other Fibrous Materials:% Asbestos Type: % Calcareous binder, Fine particles, Paint Cellulose 21 % None Detected ND Layer 2 of 4 Description: Clear rubbery material Non -Fibrous Materials: Other Fibrous Materials:% Asbestos Type: % Rubber/Binder None Detected ND None Detected ND Layer 3 of 4 Description: Off-white rubbery material Non -Fibrous Materials: Other Fibrous Materials:% Asbestos Type: % Rubber/Binder None Detected ND None Detected ND Layer 4 of 4 Description: White hard brittle material with granules Non -Fibrous Materials: Other Fibrous Materials:% Asbestos Type: % Binder/Filler, Granules, Mineral grains None Detected ND None Detected ND Lab ID: 23034228 Client Sample #: 2023-0191-3-25 Location: 19515 94th Ave W Sampled by: Client Analyzed by: Alex Shea Date:04/11/2023 Reviewed by: Kunga Woser Date:04/12/2023 Kunga Woser, Senior Laboratory Analyst Note: If samples are not homogeneous, then subsamples of the components were analyzed separately. All bulk samples are analyzed using both EPA 600/R-93/116 and EPA 40 CFR Appendix E to Subpart E of Part 763 with the following measurement uncertainties for the reported % Asbestos (1 %=0-3%, 5%=1-9%, 10%=5-15%, 20%=10-30%, 50%=40-60%). This report relates only to the items tested. If sample was not collected by NVL personnel, then the accuracy of the results is limited by the methodology and acuity of the sample collector. This report shall not be reproduced except in full, without written approval of NVL Laboratories, Inc. It shall not be used to claim product endorsement by NVLAP or any other agency of the US Government ASB-02 page 2 of 11 Bulk Asbestos Fibers Analysis HVL By Polarized Light Microscopy Client: NVL Field Services Division Batch #: 2305604.00 Address: 4708 Aurora Ave. N. Client Project #: 2023-0191 Seattle, WA 98103 Date Received: 4/7/2023 Samples Received: 18 Attention: Mr. Cameron Patterson Samples Analyzed: 18 Project Location: 19515 94th Ave W Method: EPA/600/R-93/116 Layer 1 of 1 Description: Black asphaltic fibrous felt Non -Fibrous Materials: Asphalt/Binder, Asphaltic Particles Other Fibrous Materials:% Cellulose 43% Asbestos Type: % None Detected ND Lab ID: 23034229 Client Sample #: 2023-0191-3-26 Location: 19515 94th Ave W Layer 1 of 1 Description: Yellow fluffy fibrous material with paper and foil Non -Fibrous Materials: Other Fibrous Materials:% Asbestos Type: % Binder/Filler, Metal foil, Fine particles Glass fibers 31 % None Detected ND Cellulose 23% Lab ID: 23034230 Client Sample #: 2023-0191-3-27 Location: 19515 94th Ave W Layer 1 of 3 Description: White fibrous material Non -Fibrous Materials: Other Fibrous Materials:% Asbestos Type: % Binder/Filler Synthetic fibers 96% None Detected ND Layer 2 of 3 Description: White fibrous/plastic mesh with brittle mastic Non -Fibrous Materials: Other Fibrous Materials:% Asbestos Type: % Binder/Filler, Mastic/Binder, Plastic Synthetic fibers 23% None Detected ND Fine particles Layer 3 of 3 Description: Multi -colored foamy material Non -Fibrous Materials: Other Fibrous Materials:% Asbestos Type: % Synthetic foam, Fine particles None Detected ND None Detected ND Lab ID: 23034231 Client Sample #: 2023-0191-3-28 Location: 19515 94th Ave W Sampled by: Client Analyzed by: Alex Shea Date:04/11/2023 Reviewed by: Kunga Woser Date:04/12/2023 Kunga Woser, Senior Laboratory Analyst Note: If samples are not homogeneous, then subsamples of the components were analyzed separately. All bulk samples are analyzed using both EPA 600/R-93/116 and EPA 40 CFR Appendix E to Subpart E of Part 763 with the following measurement uncertainties for the reported % Asbestos (1 %=0-3%, 5%=1-9%, 10%=5-15%, 20%=10-30%, 50%=40-60%). This report relates only to the items tested. If sample was not collected by NVL personnel, then the accuracy of the results is limited by the methodology and acuity of the sample collector. This report shall not be reproduced except in full, without written approval of NVL Laboratories, Inc. It shall not be used to claim product endorsement by NVLAP or any other agency of the US Government ASB-02 page 3 of 11 Bulk Asbestos Fibers Analysis HVL By Polarized Light Microscopy Client: NVL Field Services Division Batch #: 2305604.00 Address: 4708 Aurora Ave. N. Client Project #: 2023-0191 Seattle, WA 98103 Date Received: 4/7/2023 Samples Received: 18 Attention: Mr. Cameron Patterson Samples Analyzed: 18 Project Location: 19515 94th Ave W Method: EPA/600/R-93/116 Layer 1 of 3 Description: Beige fibrous mesh with paint and paper Non -Fibrous Materials: Other Fibrous Materials:% Asbestos Type: % Binder/Filler, Fine particles, Paint Cellulose 45% None Detected ND Glass fibers 18% Layer 2 of 3 Description: Beige compacted powdery material Non -Fibrous Materials: Other Fibrous Materials:% Asbestos Type: % Calcareous binder, Fine particles Cellulose 2% Chrysotile 2% Layer 3 of 3 Description: White chalky material with paper Non -Fibrous Materials: Other Fibrous Materials:% Asbestos Type: % Gypsum/Binder, Fine particles Cellulose 21 % None Detected ND Lab ID: 23034232 Client Sample #: 2023-0191-3-29 Location: 19515 94th Ave W Layer 1 of 3 Description: Red brick Non -Fibrous Materials: Other Fibrous Materials:% Asbestos Type: % Brick, Mineral grains Cellulose <1 % None Detected ND Layer 2 of 3 Description: Beige brittle material with granules Non -Fibrous Materials: Other Fibrous Materials:% Asbestos Type: % Binder/Filler, Granules, Mineral grains Cellulose <1 % None Detected ND Layer 3 of 3 Description: Light tan/white hard brittle material with debris Non -Fibrous Materials: Other Fibrous Materials:% Asbestos Type: % Binder/Filler, Mineral grains, Granules None Detected ND None Detected ND Debris Lab ID: 23034233 Client Sample #: 2023-0191-3-30 Location: 19515 94th Ave W Comments: Unsure of correct layer sequence. Sampled by: Client Analyzed by: Alex Shea Date:04/11/2023 Reviewed by: Kunga Woser Date:04/12/2023 Kunga Woser, Senior Laboratory Analyst Note: If samples are not homogeneous, then subsamples of the components were analyzed separately. All bulk samples are analyzed using both EPA 600/R-93/116 and EPA 40 CFR Appendix E to Subpart E of Part 763 with the following measurement uncertainties for the reported % Asbestos (1 %=0-3%, 5%=1-9%, 10%=5-15%, 20%=10-30%, 50%=40-60%). This report relates only to the items tested. If sample was not collected by NVL personnel, then the accuracy of the results is limited by the methodology and acuity of the sample collector. This report shall not be reproduced except in full, without written approval of NVL Laboratories, Inc. It shall not be used to claim product endorsement by NVLAP or any other agency of the US Government ASB-02 page 4 of 11 Bulk Asbestos Fibers Analysis By Polarized Light Microscopy Client: NVL Field Services Division Address: 4708 Aurora Ave. N. Seattle, WA 98103 Attention: Mr. Cameron Patterson Project Location: 19515 94th Ave W 00 ds NVL Batch #: 2305604.00 Client Project #: 2023-0191 Date Received: 4/7/2023 Samples Received: 18 Samples Analyzed: 18 Method: EPA/600/R-93/116 Layer 1 of 4 Description: Beige fibrous material Non -Fibrous Materials: Other Fibrous Materials:% Asbestos Type: % Binder/Filler, Fine particles Cellulose 56% None Detected ND Layer 2 of 4 Description: Gray cementitious material Non -Fibrous Materials: Other Fibrous Materials:% Asbestos Type: % Cement/Binder, Fine particles Cellulose <1 % None Detected ND Layer 3 of 4 Description: Gray stony material Non -Fibrous Materials: Other Fibrous Materials:% Asbestos Type: % Binder/Filler, Fine particles Cellulose <1 % None Detected ND Layer 4 of 4 Description: White brittle mastic Non -Fibrous Materials: Other Fibrous Materials:% Asbestos Type: % Mastic/Binder, Fine particles None Detected ND None Detected ND Lab ID: 23034234 Client Sample #: 2023-0191-3-31 Location: 19515 94th Ave W Layer 1 of 4 Description: Off-white sheet vinyl Non -Fibrous Materials Vinyl/Binder, Foamy material Layer 2 of 4 Description: Tan soft mastic with debris Non -Fibrous Materials: Mastic/Binder, Debris, Fine particles Layer 3 of 4 Description: White thin brittle material Non -Fibrous Materials: Binder/Filler, Fine particles, Fine grains Other Fibrous Materials:% Glass fibers 3% Other Fibrous Materials:% Cellulose 7% Other Fibrous Materials:% Cellulose 5% Asbestos Type: % None Detected ND Asbestos Type: % None Detected ND Asbestos Type: % None Detected ND Sampled by: Client Analyzed by: Alex Shea Date:04/11/2023 Reviewed by: Kunga Woser Date:04/12/2023 Kunga Woser, Senior Laboratory Analyst Note: If samples are not homogeneous, then subsamples of the components were analyzed separately. All bulk samples are analyzed using both EPA 600/R-93/116 and EPA 40 CFR Appendix E to Subpart E of Part 763 with the following measurement uncertainties for the reported % Asbestos (1 %=0-3%, 5%=1-9%, 10%=5-15%, 20%=10-30%, 50%=40-60%). This report relates only to the items tested. If sample was not collected by NVL personnel, then the accuracy of the results is limited by the methodology and acuity of the sample collector. This report shall not be reproduced except in full, without written approval of NVL Laboratories, Inc. It shall not be used to claim product endorsement by NVLAP or any other agency of the US Government ASB-02 page 5 of 11 Bulk Asbestos Fibers Analysis HVL By Polarized Light Microscopy Client: NVL Field Services Division Batch #: 2305604.00 Address: 4708 Aurora Ave. N. Client Project #: 2023-0191 Seattle, WA 98103 Date Received: 4/7/2023 Samples Received: 18 Attention: Mr. Cameron Patterson Samples Analyzed: 18 Project Location: 19515 94th Ave W Method: EPA/600/R-93/116 Layer 4 of 4 Description: Tan compressed fibrous material Non -Fibrous Materials: Binder/Filler, Wood flakes Other Fibrous Materials:% Cellulose 85% Asbestos Type: % None Detected ND Lab ID: 23034235 Client Sample #: 2023-0191-3-32 Location: 19515 94th Ave W Layer 1 of 1 Description: White rubbery material with debris Non -Fibrous Materials: Other Fibrous Materials:% Asbestos Type: % Rubber/Binder, Debris, Fine particles Cellulose <1 % None Detected ND Lab ID: 23034236 Client Sample #: 2023-0191-3-33 Location: 19515 94th Ave W Comments: Unsure of correct layer sequence. Layer 1 of 5 Description: White hard brittle material Non -Fibrous Materials: Other Fibrous Materials:% Asbestos Type: % Binder/Filler None Detected ND None Detected ND Layer 2 of 5 Description: White ceramic border Non -Fibrous Materials: Other Fibrous Materials:% Asbestos Type: % Ceramic/Binder, Fine particles None Detected ND None Detected ND Layer 3 of 5 Description: Clear glass the Non -Fibrous Materials: Other Fibrous Materials:% Asbestos Type: % Glass None Detected ND None Detected ND Layer 4 of 5 Description: Off-white brittle material with granules and fibrous mesh Non -Fibrous Materials: Other Fibrous Materials:% Asbestos Type: % Binder/Filler, Granules, Mineral grains Glass fibers 12% None Detected ND Sampled by: Client Analyzed by: Alex Shea Date:04/11/2023 Reviewed by: Kunga Woser Date:04/12/2023 Kunga Woser, Senior Laboratory Analyst Note: If samples are not homogeneous, then subsamples of the components were analyzed separately. All bulk samples are analyzed using both EPA 600/R-93/116 and EPA 40 CFR Appendix E to Subpart E of Part 763 with the following measurement uncertainties for the reported % Asbestos (1 %=0-3%, 5%=1-9%, 10%=5-15%, 20%=10-30%, 50%=40-60%). This report relates only to the items tested. If sample was not collected by NVL personnel, then the accuracy of the results is limited by the methodology and acuity of the sample collector. This report shall not be reproduced except in full, without written approval of NVL Laboratories, Inc. It shall not be used to claim product endorsement by NVLAP or any other agency of the US Government ASB-02 page 6 of 11 Bulk Asbestos Fibers Analysis By Polarized Light Microscopy Client: NVL Field Services Division Address: 4708 Aurora Ave. N. Seattle, WA 98103 Attention: Mr. Cameron Patterson Project Location: 19515 94th Ave W 00 ds NVL Batch #: 2305604.00 Client Project #: 2023-0191 Date Received: 4/7/2023 Samples Received: 18 Samples Analyzed: 18 Method: EPA/600/R-93/116 Layer 5 of 5 Description: Beige compacted powdery material with paper & paint Non -Fibrous Materials: Other Fibrous Materials:% Asbestos Type: % Calcareous binder, Calcareous particles, Paint Cellulose 25% Chrysotile 2% Lab ID: 23034237 Client Sample #: 2023-0191-3-34 Location: 19515 94th Ave W Layer 1 of 2 Description: White ceramic tile with adhesive Non -Fibrous Materials: Other Fibrous Materials:% Asbestos Type: % Ceramic/Binder, Adhesive/Binder, Fine particles None Detected ND None Detected ND Layer 2 of 2 Description: White rubbery material Non -Fibrous Materials: Other Fibrous Materials:% Asbestos Type: % Rubber/Binder, Fine particles None Detected ND None Detected ND Lab ID: 23034238 Client Sample #: 2023-0191-3-35 Location: 19515 94th Ave W Comments: Unsure of correct layer sequence. Layer 1 of 2 Description: Green thin brittle material Non -Fibrous Materials: Other Fibrous Materials:% Binder/Filler, Fine particles Cellulose <1 % Layer 2 of 2 Description: Black soft fibrous asphaltic mastic with plastic Non -Fibrous Materials: Other Fibrous Materials:% Asphalt/Binder, Asphaltic Particles, Mastic/Binder Glass fibers 16% Plastic Lab ID: 23034239 Client Sample #: 2023-0191-3-36 Location: 19515 94th Ave W Comments: Unsure of correct layer sequence. Asbestos Type: % None Detected ND Asbestos Type: % None Detected ND Sampled by: Client Analyzed by: Alex Shea Date:04/11/2023 Reviewed by: Kunga Woser Date:04/12/2023 Kunga Woser, Senior Laboratory Analyst Note: If samples are not homogeneous, then subsamples of the components were analyzed separately. All bulk samples are analyzed using both EPA 600/R-93/116 and EPA 40 CFR Appendix E to Subpart E of Part 763 with the following measurement uncertainties for the reported % Asbestos (1 %=0-3%, 5%=1-9%, 10%=5-15%, 20%=10-30%, 50%=40-60%). This report relates only to the items tested. If sample was not collected by NVL personnel, then the accuracy of the results is limited by the methodology and acuity of the sample collector. This report shall not be reproduced except in full, without written approval of NVL Laboratories, Inc. It shall not be used to claim product endorsement by NVLAP or any other agency of the US Government ASB-02 page 7 of 11 Bulk Asbestos Fibers Analysis HVL By Polarized Light Microscopy Client: NVL Field Services Division Batch #: 2305604.00 Address: 4708 Aurora Ave. N. Client Project #: 2023-0191 Seattle, WA 98103 Date Received: 4/7/2023 Samples Received: 18 Attention: Mr. Cameron Patterson Samples Analyzed: 18 Project Location: 19515 94th Ave W Method: EPA/600/R-93/116 Layer 1 of 3 Description: Gray clear brittle material Non -Fibrous Materials: Other Fibrous Materials:% Asbestos Type: % Binder/Filler, Fine particles None Detected ND None Detected ND Layer 2 of 3 Description: Gray rubbery material with debris Non -Fibrous Materials: Other Fibrous Materials:% Asbestos Type: % Rubber/Binder, Debris, Fine particles Cellulose <1 % None Detected ND Layer 3 of 3 Description: White brittle material with granules Non -Fibrous Materials: Other Fibrous Materials:% Asbestos Type: % Binder/Filler, Granules, Mineral grains Cellulose <1 % None Detected ND Lab ID: 23034240 Client Sample #: 2023-0191-3-37 Location: 19515 94th Ave W Layer 1 of 2 Description: White compressed fibrous material with adhesive Non -Fibrous Materials: Other Fibrous Materials:% Asbestos Type: % Binder/Filler, Adhesive/Binder, Fine particles Synthetic fibers 66% None Detected ND Layer 2 of 2 Description: Black asphaltic fibrous felt Non -Fibrous Materials: Other Fibrous Materials:% Asbestos Type: % Asphalt/Binder, Asphaltic Particles Cellulose 47% None Detected ND Lab ID: 23034241 Client Sample #: 2023-0191-3-38 Location: 19515 94th Ave W Layer 1 of 1 Description: Beige rubbery material with paint Non -Fibrous Materials: Other Fibrous Materials:% Asbestos Type: % Rubber/Binder, Paint, Fine particles None Detected ND None Detected ND Lab ID: 23034242 Client Sample #: 2023-0191-3-39 Location: 19515 94th Ave W Sampled by: Client Analyzed by: Alex Shea Date:04/11/2023 Reviewed by: Kunga Woser Date:04/12/2023 Kunga Woser, Senior Laboratory Analyst Note: If samples are not homogeneous, then subsamples of the components were analyzed separately. All bulk samples are analyzed using both EPA 600/R-93/116 and EPA 40 CFR Appendix E to Subpart E of Part 763 with the following measurement uncertainties for the reported % Asbestos (1 %=0-3%, 5%=1-9%, 10%=5-15%, 20%=10-30%, 50%=40-60%). This report relates only to the items tested. If sample was not collected by NVL personnel, then the accuracy of the results is limited by the methodology and acuity of the sample collector. This report shall not be reproduced except in full, without written approval of NVL Laboratories, Inc. It shall not be used to claim product endorsement by NVLAP or any other agency of the US Government ASB-02 page 8 of 11 Bulk Asbestos Fibers Analysis HVL By Polarized Light Microscopy Client: NVL Field Services Division Batch #: 2305604.00 Address: 4708 Aurora Ave. N. Client Project #: 2023-0191 Seattle, WA 98103 Date Received: 4/7/2023 Samples Received: 18 Attention: Mr. Cameron Patterson Samples Analyzed: 18 Project Location: 19515 94th Ave W Method: EPA/600/R-93/116 Layer 1 of 2 Layer 2 of 2 Description: Clear rubbery material with debris Non -Fibrous Materials: Rubber/Binder, Debris, Fine particles Description: White brittle material with granules Non -Fibrous Materials: Binder/Filler, Granules, Mineral grains Other Fibrous Materials:% None Detected ND Other Fibrous Materials:% Cellulose <1 % Asbestos Type: % None Detected ND Asbestos Type: % None Detected ND Lab ID: 23034243 Client Sample #: 2023-0191-3-40 Location: 19515 94th Ave W Comments: Unsure of correct layer sequence. Layer 1 of 4 Description: Black asphaltic fibrous material with granules Non -Fibrous Materials: Other Fibrous Materials:% Asbestos Type: % Asphalt/Binder, Asphaltic Particles, Granules Glass fibers 23% None Detected ND Layer 2 of 4 Description: Black asphaltic mastic Non -Fibrous Materials: Other Fibrous Materials:% Asbestos Type: % Asphalt/Binder, Asphaltic Particles Cellulose 3% None Detected ND Layer 3 of 4 Description: Black asphaltic fibrous material Non -Fibrous Materials: Other Fibrous Materials:% Asbestos Type: % Asphalt/Binder, Asphaltic Particles Cellulose 43% None Detected ND Layer 4 of 4 Description: Black asphaltic fibrous felt Non -Fibrous Materials: Other Fibrous Materials:% Asbestos Type: % Asphalt/Binder, Asphaltic Particles Synthetic fibers 36% None Detected ND Glass fibers 13% Sampled by: Client Analyzed by: Alex Shea Date:04/11/2023 Reviewed by: Kunga Woser Date:04/12/2023 Kunga Woser, Senior Laboratory Analyst Note: If samples are not homogeneous, then subsamples of the components were analyzed separately. All bulk samples are analyzed using both EPA 600/R-93/116 and EPA 40 CFR Appendix E to Subpart E of Part 763 with the following measurement uncertainties for the reported % Asbestos (1 %=0-3%, 5%=1-9%, 10%=5-15%, 20%=10-30%, 50%=40-60%). This report relates only to the items tested. If sample was not collected by NVL personnel, then the accuracy of the results is limited by the methodology and acuity of the sample collector. This report shall not be reproduced except in full, without written approval of NVL Laboratories, Inc. It shall not be used to claim product endorsement by NVLAP or any other agency of the US Government ASB-02 page 9 of 11 ASBESTOS LABORATORY SERVICES _ '14 NVL Company NVL Field Services Division Address 4708 Aurora Ave. N. Seattle, WA 98103 Project Manager Mr. Cameron Patterson Phone (206) 547-0100 Project Name/Number: 2023-0191 NVL Batch Number 2305604.00 TAT 3 Days AH No Rush TAT Due Date 4/12/2023 Time 12:50 PM Email cameron.panvllabs, com Fax (206) 634-1936 Project Location: 19515 94th Ave W Subcategory PLM Bulk Item Code ASB-02 EPA 600/R-93-116 Asbestos by PLM <bulk> Total Number of Samples 18 Lab ID Sample ID Description Rush Samples A/R 1 23034226 2023-0191-3-23 A 2 23034227 2023-0191-3-24 A 3 23034228 2023-0191-3-25 A 4 23034229 2023-0191-3-26 A 5 123034230 2023-0191-3-27 A 6 23034231 2023-0191-3-28 A 7 23034232 2023-0191-3-29 A 8 23034233 2023-0191-3-30 A 9 23034234 2023-0191-3-31 A 10 23034235 2023-0191-3-32 A 11 23034236 2023-0191-3-33 A 12 123034237 2023-0191-3-34 A 13 23034238 2023-0191-3-35 A 14 23034239 2023-0191-3-36 A 15 23034240 2023-0191-3-37 A 16 23034241 2023-0191-3-38 A 17 23034242 2023-0191-3-39 A 18 23034243 2023-0191-3-40 A Print Name Signature Company Date Time Sampled by Client Relinquished by Client Office Use Onlv Print Name Sianature Comoanv Date Time Received by Fatima Khan NVL 4/7/23 1250 Analyzed by Alex Shea NVL 4/11/23 Results Called by ❑ Faxed ❑ Emailed Special Instructions: Date: 4/7/2023 Time: 12:55 PM Entered By: Kelly AuVu page 10 of 11 Client NVL Laboratories Inc Street 4708 Aurora Ave N Seattle, WA 98103 Project Manager Syed Hasan Project Location 19515 94th Ave W Phnna• (4951 749-9742 Fay- CHAIN )f CUSTODY SAR PLE LOG 2305604 NVL Batch Number Client Job Number 2023-0191 Total Samples i3 Turn Around Time ` I Hr ❑'$ Hrs [><3 Days ❑ 10 Days ❑2Hrs ❑1 Day ❑4Days ❑ 4 Hrs ❑ 2 Days ❑ 5 Days Please call for TAT less than 24 Hn Email address trisha(cD_lgh-inc.com ❑ Asbestos Air ❑ PCM (NIOSH 7400) ❑TEM (NIOSH 7402) ❑ TEM (AHERA) [:ITEM (EPA Level II) ❑ Other X Asbestos Bulk[❑ELM (EPA/600/R-93/116) ❑ PLM (EPA Point Count) ❑ PLM (EPA Gravimetry) ❑ TEM BULK ❑ Mold/Fungus IF Mold Air ❑ Mold Bulk I ❑ Rotometer Calibration Det. Limit Matrix RCRA Metals ❑All 8 Other Metals ❑ All 3 METALS ❑ Total Metals ❑ FAA (pp m) ❑ Air Filter ❑ Soil ❑ Arsenic (As) ❑ Chromium (Cr ❑ Copper (Cu)Lead ❑ TCLP ❑ ICP (ppm) ❑Drinking water ❑Paint Chips in % ❑Barium (Ba) ❑(Pb) ❑ Nickel (Ni) ❑ Cr 6 ❑ GFAA (ppb) ❑ Dust/wipe (Area) ❑ Paint Chips in crr ❑ Cadmium (Cd) ❑ Mercury (Hg) ❑ Zinc (Zn) [7]Other Types �Ejl Fiberglass ❑ Nuisance Dust ❑ Other (Specify) of Analysis F-f Silica n RPsnirahlP Dii-t Condition of Package: ❑ Good ❑ Damaged (no spillage) ❑ Severe damage (spillage) Seg. # Lab ID Client Sam le Number Comments AIR 1 '02 -oci 5-23 01c11- 3-3 2 4 3-Z4 5 3�2� 6 7 �- z�► 8 v 9 3-31 10 3-31 11 `, ^33 12 3-3 13 3 -3� 14 -3.(. 15 -3.3-1 �L Relinquished Received Analyzed Results Called Results Faxed Special Instructions: Unless requested in writing, all samples will be disposed of two (2) weeks after analysis. Results report to l2 9=dv -11 page 11 of 11 NVL L A B S Appendix C AHERA Certifications & Laboratory Qualifications United States Department of Commerce National Institute of Standards and Technology 7NIlipt Certificate of Accreditation to ISO/IEC 17025:2017 NVLAP LAB CODE: 102063-0 NVL Laboratories, Inc. Seattle, WA is accredited by the National Voluntary Laboratory Accreditation Program for specific services, listed on the Scope of Accreditation, for: Asbestos Fiber Analysis This laboratory is accredited in accordance with the recognized International Standard ISO/IEC 17025:2017. This accreditation demonstrates technical competence for a defined scope and the operation of a laboratory quality management system (refer to joint ISO-ILAC-IAF Communique dated January 2009). F�O OF C i 2022-10-01 through 2023-09-30 Effective Dates x1 For the National Volunt4y LaboratociAccreditation Program ,as Tarzg OF P��, National Voluntary Laboratory Accreditation Program SCOPE OF ACCREDITATION TO ISO/IEC 17025:2017 NVL Laboratories, Inc. 4708 Aurora Avenue N. Seattle, WA 98103 Mr. Nghiep Vi Ly Phone:206-547-0100 Fax:206-634-1936 Email: nick.l@nvllabs.com http://www.nvllabs.com ASBESTOS FIBER ANALYSIS NVLAP LAB CODE 102063-0 Bulk Asbestos Analysis Code Description 18/A01 EPA -- 40 CFR Appendix E to Subpart E of Part 763, Interim Method of the Determination of Asbestos in Bulk Insulation Samples 18/A03 EPA 600/R-93/ l 16: Method for the Determination of Asbestos in Bulk Building Materials eta C For the National Voluntary Laboratory Accreditation Program EJfeclive 2022-10-01 through 2023-09-30 Page l of 1 Certificate of Completion This is to certify that Cameron C. Patterson has satisfactorily completed 4 hours of online refresher training as an AHERA Building Inspector to comply with the training requirements of TSCA Title H. 40 CFR 763 (AH ERA) EPA Provider # 1085 187422 Certificate Number Instructor: Andre Zwanenburg ierracon Explore with us ■ Facilities ■ Environmental ■ Geotechnical ■ Materials Jan 19, 2023 Expires in 1 year. Date(s) of Training Exam Score: N/A (if applicable) Certificate of Completion This is to certify that Daniel R. Fyffe has satisfactorily completed 24 hours of training as an AHERA Building Inspector to comply with the training requirements of -n -VOf�o - � ��rj Instruct : Tracy Greene Wrerracon Explore wit us TSCA Title H. 40 CFR 763 (AH ERA) EPA Provider # 1085 Facilities Environmental ■ Geotechnical E Materials 187715 Certificate Number Feb 7 - 9, 2023 Expires in 1 Year. Date(s) of Training Exam Score: 7-EX (if applicable)