13-AZ 15-30 25 LAM Report.pdf

ENVIRONMENTAL

SERVICES

Client Name: Gila River Indian Community Department of Community Housing

Project Name: HUD Unit AZ 15-30 #25

106 West Toha Street Sacaton, Arizona

Project Number: 21-825050-0

Report Issuance: April 29, 2025

Certerra.com 1805 West Drake Drive, Tempe, AZ 85283 Page i T: 602.437.3737

SURVEY INFORMATION SUMMARY

Consulting Firm: Western Technologies, Inc., dba Certerra Western Technologies (“Certerra”), 1805 West Drake

Drive, Tempe, Arizona 85283, T: 602.437.3737

Current Property Owner: Gila River Indian Community

Site Address: HUD Unit AZ 15-30 #25

106 West Toha Street, Sacaton, Arizona 85147

Facility Description/Construction Date: Single-Family Residence/1987

Date of Survey: 4/3/2025

Inspectors:

Name Discipline Certification Number Expiration Training Facility

Quentin Tortora Asbestos ON-188748-16674-010925 01/09/2026 The Asbestos

Institute Maria Strachan Lead LPB-R-I259180-1 04/15/2027 USEPA

Quentin Tortora Mold Not Applicable Not Applicable Not Applicable

Sample Information:

Type Method Quantity Date

Collected Laboratory

Certification Constituent

Detected

Asbestos Polarized Light Microscopy

(PLM), EPA 600/R-93/116 Method 48 4/3/2025

Fiberquant 101031-0

Asbestos-containing Materials (ACM)

Lead X-Ray Fluorescence, Niton XLp 300A 186 4/3/2025

WT

LBP-2695-3

Lead-based Paint

(LBP)

Mold Direct Observation -- 4/3/2025 Not Applicable Moisture Intrusion

Identified Materials:

Constituent Material Functional Space Result NESHAP Category

ACM Sealant, black 9, Roof Penetrations 5-10% chrysotile asbestos CAT II

LBP None -- -- -- Mold None -- -- --

This survey is limited to the sampling and analysis of the materials identified at the time of the inspection. Other materials not included in this survey should be assumed as asbestos-containing material or lead-based paint unless proven otherwise through sampling by a certified inspector and laboratory analysis.

Certerra Project No. 21-825050-0 April 29, 2025

Certerra.com 1805 West Drake Drive, Tempe, AZ 85283 Page 1

Gila River Indian Community Department of Community Housing PO Box 528 Sacaton, Arizona 85147

ATTN: Jeffrey Jordan

Re: Environmental Services HUD Unit AZ 15-30 #25 106 West Toha Street Sacaton, Arizona 85147

Western Technologies, Inc., dba Certerra Western Technologies (“Certerra”) presents this environmental services report describing the results of the asbestos survey, lead-based paint survey, and mold observation and screening conducted at the referenced location (the “Property”). This report completes the agreed scope of services. Certerra was authorized to proceed with these services by Jeffrey Jordan representing the Gila River Indian Community, Department of Community Housing (“Client”), according to the scope of services described in Certerra Reference No. 21-825050-P, dated March 10, 2025. Figure 1 in Appendix A shows the location of the Property. Figure 2 in Appendix A shows the locations of functional spaces used during the asbestos survey. Figure 3 in Appendix A is an asbestos location map. Figure 4 illustrates the room equivalents used during the lead survey. Appendix B contains a photographic log showing the condition of the residence at the time of the reconnaissance.

1.0 PURPOSE

The purpose of this project was to identify and report the location, condition, and quantity of asbestos-containing materials (ACMs), Lead-Based Paint (LBP), and potential presence of water intrusion at the Property prior to renovation activities.

2.0 SCOPE OF SERVICES

Certerra implemented the following scope of services for this project:

• Asbestos Survey – Certerra visually identified suspect asbestos containing materials (ACM), evaluated friability, and collected samples for laboratory analysis. The purpose of the asbestos survey was to report the location, condition, and quantity of ACM in the residence on the Property following sampling guidelines from the Asbestos Hazard Emergency Response Act (AHERA).

• Lead-Based Paint Survey – Certerra completed a surface-by-surface inspection of the interior and exterior painted surfaces of the building on the Property and collected lead-based paint readings using a direct reading Niton XRF lead analyzer. The purpose of the lead-based paint inspection was to report the location and condition of lead-based paint within the residence on the Property following guidelines from the United States Department of Housing and Urban Development (HUD) for child-occupied facilities.

• Mold Observation and Screening - Certerra recorded visual observations for indications of water intrusion and suspected mold growth on room-side interior components of the building on the Property. The purpose of the mold observation and screening task was to evaluate whether a potential water intrusion source has caused microbial growth within the housing unit.

Certerra.com 1805 West Drake Drive, Tempe, AZ 85283 Page 2

3.0 PROJECT DESCRIPTION

The Property consisted of a single-story, 1,000 square-foot residential which was vacant at the time of the survey. The slab-on-grade structure was wood-framed with exterior stucco walls and a gabled asphalt-shingled roof. The building was constructed in 1987.

4.0 FIELD ACTIVITIES AND RESULTS

4.1 Asbestos Survey

Quentin Tortora, an EPA-accredited building inspector with Certerra, conducted the survey on April 3, 2025. Appendix C contains accreditations for the inspector. The inspector evaluated the friability of each suspect ACM and estimated the quantity of the materials.

Certerra collected a total of 48 samples of 16 suspect ACMs. The inspector recorded a description of the suspect ACM, the condition and friability of the material, the locations where samples were collected, and the estimated quantity of the materials on Certerra’s Asbestos Field Data Sheets (Appendix D). The samples were submitted to Fiberquant Analytical Services (Fiberquant) in Phoenix, Arizona, for analysis using EPA Method 600/R-93/116 (the New Method) PLM with dispersion staining. Fiberquant participates in the National Voluntary Laboratory Accreditation Program (NVLAP Code:

101031-0). The asbestos laboratory report and chain-of-custody are presented in Appendix D. The following table summarizes the sample information.

Table 1, Summary of Homogeneous Materials

Material Description Sample Nos.

Material Location by

Functional Space Result

Concrete 1A, 1B, 1C 9, Sidewalk/driveway No asbestos detected

Concrete 2A, 2B, 2C 1-9, Foundation No asbestos detected

Paint, tan, Stucco 3A, 3B, 3C 9, Exterior walls No asbestos detected

Sealant, white/tan 4A, 4B, 4C 9, Door frame No asbestos detected

Sealant, black 5A, 5B, 5C 9, Roof penetrations 5-10 % Chrysotile

Asbestos Multi-layer Shingles, Mastic, black 6A, 6B, 6C 9, Roof No asbestos detected

Sealant, tan/white/off-white 7A, 7B, 7C 9, Roof HVAC No asbestos detected Vinyl floor tile, 12-inch, tan/off-white, Mastic, yellow 8A, 8B, 8C

1A, 1D, 2, 3A, 4A, 4B, 5A, 5B, 6A, 6B, 7, 8

No asbestos detected

Sealant, white 9A, 9B, 9C 1A, 2, 4A, 5A, 6A, 7, Windows No asbestos detected

Sealant, white/clear 10A, 10B, 10C 1A, Countertop No asbestos detected

Sealant, white/clear 11A, 11B, 11C 7, Sink No asbestos detected

Sealant, white 12A, 12B, 12C 7, Tub No asbestos detected

Undercoat, gray 13A, 13B, 13C 1A, Sink No asbestos detected

Sealant, white 14A, 14B, 14C 1-8, Baseboards No asbestos detected

Paint, white, Drywall, 5/8”, texture, orange peel

15A, 15B, 15C 1-8, Walls/ceiling No asbestos detected

Joint compound 16A, 16B, 16C 1-8, Walls/ceiling No asbestos detected

Certerra.com 1805 West Drake Drive, Tempe, AZ 85283 Page 3

4.2 Lead-Based Paint Survey

Maria Strachan, a lead-based paint risk assessor, conducted the survey on April 3, 2025, utilizing the criteria established in the HUD Guidelines for the Evaluation and Control of Lead-Based Paint Hazards in Single-Family Housing. The interior and exterior painted surfaces associated with the residence on the Property were tested with the Thermo Scientific Niton X- Ray fluorescence (XRF) direct reading analyzer. The calibration of the XRF was checked against a standard NIST paint chip at the beginning and end of the survey.

A total of 186 XRF sample points were recorded with the instrument. No materials were found to contain greater than 1.0 milligram per square centimeter (mg/cm²) of lead content. The performance characteristic sheet for the instrument, the calibration check sheet and the tabular summary of the XRF readings are presented in Appendix E.

4.3 Visual Mold Observation and Screening

On April 3, 2025, Quentin Tortora with Certerra conducted a visual evaluation of the interior, room-side surfaces for indications of water intrusion (staining, corrosion, delamination, efflorescence, condensation, seepage, or leakage) following general industry standards and practices for visual observation of moisture intrusion. The focus of these observations was on likely sources of water introduction into the building (under sink plumbing, wet walls, bathrooms, condensate drip pans, exterior irrigation, water heaters, appliances, and roofing). Observations of water intrusion, and potential mold growth, were documented on Certerra’s Moisture Intrusion Observation Log (Appendix F). Mr. Tortora utilized an indoor air quality meter to collect temperature, humidity, and carbon dioxide measurements within the building.

The following table summarizes the field data collected for this task:

Table 2, Summary of Visual Mold Indications Functional

Space Moisture Intrusion Potential Mold Growth

Carbon Dioxide (ppm)

Temperature (°F)

Humidity

7 Not Observed Not Observed 724 66.0 30.8

6B Not Observed Not Observed 664 65.9 30.8

Exterior Not Observed Not Observed 381 72.5 29.5 ppm, Parts per million °F, Degrees Fahrenheit

5.0 RECOMMENDATIONS

Approximately 2 square feet of ACM black roof penetration sealant was identified around the roof penetrations of the building. The roof penetration sealant is categorized by NESHAP as Category II, nonfriable. Removal of the ACM roof penetration sealant is deregulated by OSHA.

Lead-based paint was not identified in the building; therefore, a lead hazard does not exist and special abatement provisions due to lead-based paint are not warranted at this time.

Mold was not observed throughout the building. Persons working with and/or around identified mold-impacted materials should be informed of its location, quantity, matrix, and health effects associated with exposure to mold.

The potential exists for other suspect materials to be uncovered at the Site. If additional suspect materials are encountered, stop all work and contact this firm immediately for additional inspection and testing, and further recommendations.

APPENDIX A

FIGURES

N

FIGURE 1. AERIAL PHOTOGRAPH

Environmental Services HUD Unit AZ 15-30 #25 106 West Toha Street Sacaton, Arizona

Certerra Job No. 25-825050-0

Property

West Nakshel Street

West Toha Street

FIGURE 2. FUNCTIONAL SPACE MAP

Environmental Services HUD Unit AZ 15-30 #25 106 West Toha Street Sacaton, Arizona

Certerra Job No. 25-825050-0

DRAWING NOT TO SCALE

1A

1B

1D

1C

3B

4B

4A 5A

5B

6A

6B

3A

FIGURE 3. ASBESTOS LOCATION MAP

Environmental Services HUD Unit AZ 15-30 #25 106 West Toha Street Sacaton, Arizona

Certerra Job No. 25-825050-0

DRAWING NOT TO SCALE

1A

1B

1D

1C

3B

4B

4A 5A

5B

6A

6B

3A

9 = Exterior and Roof

ASBESTOS-CONTAINING MATERIAL

• ACM Roof Penetration Sealant, black, Throughout roof penetrations, 5-10% Chrysotile Asbestos, ~2 sf

FIGURE 4. ROOM EQUIVALENT DIAGRAM

Environmental Services HUD Unit AZ 15-30 #25 106 West Toha Street Sacaton, Arizona

Certerra Job No. 25-825050-0

DRAWING NOT TO SCALE

1A

1B

1D

1C

3B

4B

4A 5A

5B

6A

6B

3A

9 = Exterior and Roof

West Toha Street

C

A

SIDE

B D

APPENDIX B

PHOTOGRAPHIC LOG

1: The front of the residence. 2: The back of the residence.

3: Roof penetration and HVAC unit. 4: ACM penetration sealants around pipes on the roof.

5: Carport and concrete driveways at the residence.

6: Painted living room with drywall wall and ceiling systems.

Certerra Job No: 21-825050-0

Inspection Date: April 3, 2025

7: Kitchen with cabinets and drywall wall and ceiling systems.

8: Laundry room with painted concrete floor in the residence.

9: Typical closet in the residence. 10: Typical bedroom in the residence.

11: Typical bathroom with vanity, toilet, and bathtub.

12: A hallway in the residence.

Certerra Job No: 21-825050-0

Inspection Date: April 3, 2025

APPENDIX C

CERTIFICATIONS AND ACCREDITATIONS

Quentin Tortora

January 09, 2025

ON-188748-16674-010925

9-Jan-2025

09-Jan-2026

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WESTERN TECHNOLOGIES

has fulfilled the requirements of the Toxic Substances Control Act (TSCA) Section 402, and has received certification to conduct lead-based paint activities pursuant to 40 CFR Part 745.226

All EPA Administered Lead-based Paint Activities Program States, Tribes and Territories

This certification is valid from the date of issuance and expires February 10, 2027

Certification #

LBP-2695-3

Issued On

January 03, 2024

Michelle Price, Chief

Lead, Heavy Metals, and Inorganics Branch

United States Department of Commerce

National Institute of Standards and Technology

Certificate of Accreditation to ISO/IEC 17025:2017

NVLAP LAB CODE: 101031-0

Fiberquant, Inc.

Phoenix, AZ is accredited by the National Voluntary Laboratory Accreditation Program for specific services, listed on the Scope of Accreditation, for:

Asbestos Fiber Analysis

2024-07-01 through 2025-06-30

Effective Dates For the National Voluntary Laboratory Accreditation Program

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 on ISO/IEC 17025).

SCOPE OF ACCREDITATION TO ISO/IEC 17025:2017

For the National Voluntary Laboratory Accreditation Program

Effective

National Voluntary Laboratory Accreditation Program

2024-07-01 through 2025-06-30

Fiberquant, Inc.

5025 S. 33rd St.

Phoenix, AZ 85040-2186

Mr. Michael Breu

Phone: 602-276-6139 Fax: 602-276-4558

Email: michaelb@fiberquant.com http://www.fiberquant.com

ASBESTOS FIBER ANALYSIS NVLAP LAB CODE 101031-0

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-93/116: Method for the Determination of Asbestos in Bulk Building Materials

Airborne Asbestos Analysis

Code Description 18/A02 U.S. EPA's "Interim Transmission Electron Microscopy Analytical Methods-Mandatory and

Nonmandatory-and Mandatory Section to Determine Completion of Response Actions" as found in

40 CFR, Part 763, Subpart E, Appendix A.

AIHA Laboratory Accreditation Programs, LLC acknowledges that

Fiberquant Analytical Services 5025 S. 33rd Street, Phoenix, AZ 85040

Laboratory ID: LAP-101593 along with all premises from which key activities are performed, as listed above, has fulfilled the requirements of the AIHA Laboratory Accreditation Programs (AIHA LAP), LLC accreditation to the ISO/IEC 17025:2017 international standard, General Requirements for the Competence of Testing and Calibration Laboratories in the following:

LABORATORY ACCREDITATION PROGRAMS

INDUSTRIAL HYGIENE Accreditation Expires: July 01, 2025

ENVIRONMENTAL LEAD Accreditation Expires: July 01, 2025

ENVIRONMENTAL MICROBIOLOGY Accreditation Expires: July 01, 2025

FOOD Accreditation Expires:

UNIQUE SCOPES Accreditation Expires:

BERYLLIUM FIELD/MOBILE Accreditation Expires:

Specific Field(s) of Testing (FoT)/Method(s) within each Accreditation Program for which the above named laboratory maintains accreditation is outlined on the attached Scope of Accreditation. Continued accreditation is contingent upon successful on-going compliance with ISO/IEC 17025:2017 and AIHA LAP, LLC requirements. This certificate is not valid without the attached Scope of Accreditation. Please review the AIHA LAP, LLC website (www.aihaaccreditedlabs.org) for the most current Scope.

Revision21: 05/15/2023

Cheryl O Morton Managing Director, AIHA Laboratory Accreditation Programs, LLC

Date Issued: 07/01/2023

Effective: 05/15/2023 Revision: 10

SCOPE OF ACCREDITATION

Fiberquant Analytical Services Laboratory ID: LAP-101593 5025 S. 33rd Street, Phoenix, AZ 85040 Issue Date: 07/01/2023

The laboratory is approved for those specific field(s) of testing/methods listed in the table below. Clients are urged to verify the laboratory's current accreditation status for the particular field(s) of testing/Methods, since these can change due to proficiency status, suspension and/or withdrawal of accreditation.

Industrial Hygiene Laboratory Accreditation Program (IHLAP)

Initial Accreditation Date: 07/01/1991

IHLAP Scope Category Field of Testing (FOT) Technology sub-type/Detector

Published Reference Method/Title of

In-house Method

Component, parameter or characteristic tested

Asbestos/Fiber Microscopy Core

Phase Contrast Microscopy (PCM) - 29 CFR 1910.1001, Appendix A Fibers in Air

Asbestos/Fiber Microscopy Core

Phase Contrast Microscopy (PCM) - NIOSH 7400 Asbestos/Fibers

Spectrometry Core X-ray Diffraction (XRD) - NIOSH 7500 Silica in Air

A complete listing of currently accredited IHLAP laboratories is available on the AIHA LAP, LLC website at:

http://www.aihaaccreditedlabs.org

Effective: 05/15/2023 Revision: 9

SCOPE OF ACCREDITATION

Fiberquant Analytical Services Laboratory ID: LAP-101593 5025 S. 33rd Street, Phoenix, AZ 85040 Issue Date: 07/01/2023

The laboratory is approved for those specific field(s) of testing/methods listed in the table below. Clients are urged to verify the laboratory's current accreditation status for the particular field(s) of testing/Methods, since these can change due to proficiency status, suspension and/or withdrawal of accreditation.

The EPA recognizes the AIHA LAP, LLC ELLAP program as meeting the requirements of the National Lead Laboratory Accreditation Program (NLLAP) established under Title X of the Residential Lead-Based Paint Hazard Reduction Act of 1992 and includes paint, soil and dust wipe analysis. Air and composited wipes analyses are not included as part of the NLLAP.

Environmental Lead Laboratory Accreditation Program (ELLAP)

Initial Accreditation Date: 01/18/1995

Component, parameter or characteristic tested Technology sub-type/Detector Method Method Description

(for internal methods only)

Airborne Dust AA NIOSH 7082 N/A

EPA SW-846 3050B N/A

Paint AA

EPA SW-846 7000B N/A

Settled Dust by Wipe AA NIOSH 7082 N/A

EPA SW-846 3050B N/A

Soil AA

EPA SW-846 7000B N/A

A complete listing of currently accredited ELLAP laboratories is available on the AIHA LAP, LLC website at:

http://www.aihaaccreditedlabs.org

ARIZONA DEPARTMENT

OF HEALTH SERVICES

ENVIRONMENTAL LABORATORY LICENSE

is in compliance with Environmental Laboratory’s applicable standards for the State of Arizona and maintains

PERIOD OF LICENSURE FROM: TO:

, Chief

Office of Laboratory Licensure & Certification

Bureau of State Laboratory Services

Mr. Michael A. Breu

Fiberquant Analytical Services

Michael A. Breu

12/27/2024 12/27/2025

AZ0633

Arizona Department Of Health Services Office of Laboratory Licensure and Certification

250 N.17th Avenue, Phoenix, Arizona 85007-3246

Laboratory Methods, Instrument & Softwares AZ License: AZ0633, Lab Name: Fiberquant Analytical Services

SDW

Parameter EPA Method Certified On

ASBESTOS EPA 100.2 (6/94) 12/16/2022 3:34:53 PM

Total Count: 1

Instrument

Instrument Instrument Code Quantity Certified On

TRANSMISSION ELECTRON

MICROSCOPE

TEM 2 12/3/2001 12:00:00 AM

Total Count: 1

11/4/2024 8:00:47 AM

APPENDIX D

ASBESTOS SURVEY FIELD DATA SHEETS, LABORATORY REPORT,

AND CHAIN-OF-CUSTODY

Client Job: 21-825050-0 PO Number: HUD Unit AZ

JobNumber: 202503555

Routing Number: 15-30 #25

# Samples: 48

PLMn

PLM The "New" Method; see below

Client:

Polarized Light Microscope (PLM) Analysis for Asbestos in Bulk Sample

Method and Analysis Information:

Each bulk sample is first dissected under a 7-30x magnification stereo-microscope. This examination is used to determine the general type of sample, how many and what type of layers it has, and initial estimates of fiber types and quantities. Second, liquid media mounts are made of each layer -such mounts may be of selected fibers (used solely for identification purposes) or may be representative of the layer as a whole (used for quantitation purposes). The mounts may be made in a synthetic Canadian balsam, one of several solvents, or in refractive index oils (media of known refractive index). Generally, a variety of different mounts are made: some optimized for fiber visibility, some optimized for fiber identification, and some optimized for fiber quantitation. The mounted slides are then examined at 50-400x magnification on a Nikon Labphot-pol microscope. Optical characteristics are used to identify each observed fiber type; the optical data are contained for each sample on its detail analysis sheet, attached.

Current EPA and NESHAP regulations designate a result of ≤1 % asbestos as "negative" or "non-regulated"and >1 % asbestos as "positive" or "regulated." Samples containing layers that have been determined to be "positive" may have to be handled differently during a renovation or demolition than samples whose layers have been determined to be "negative." OSHA under CFR 1926.1101 regulates work done involving any detectable concentration of asbestos.

The method of fiber identification and quantitation is the “Standard Operating Procedures for the Analysis of Asbestos in Bulk Samples using Polarized Light Microscopy”, Chapter 7 of the Quality Assurance and Management Manual. This SOP and its associated reporting have been designed to satisfy all requirements in both EPA Method 600/M4-82-020 (The Interim Method) and EPA Method 600/R-93/116 (The New Method). The Interim Method is the required method for AHERA (US EPA 40 CFR Pt. 763), but this method calls for the reporting of composited results of multi-layered samples that is no longer an acceptable reporting practice in most circumstances. Current EPA rules, such as NESHAP (US EPA 40 CFR Pt. 61), as well as NVLAP accreditation policies, call for separate reporting for each layer of multi-layered samples. The New Method contains the same procedures for identification and quantification of asbestos as does the Interim Method, except that multi-layered samples are reported to comply with the latest US EPA rule. Fiberquant not only reports the asbestos content of each layer of multi-layered samples separately (satisfying current EPA and NVLAP reporting requirements), but Fiberquant also reports what percentage of the sample each layer comprises. Therefore, the results may be arithmetically composited to satisfy the reporting requirements of the Interim Method. The method of fiber quantitation is an estimation technique in which the analysts quantitation is routinely calibrated by reference quantitation standards, and which has been shown to be equivalent in precision and accuracy to point counting. Friability is estimated for the purposes of deciding when to point count. Friabilities determined in the field take precedence over those determined in the laboratory. Those sample layers which are friable and estimated by the analyst to contain <= 1% asbestos are point counted using 400 points. Such point counting is required by NESHAP (National Emission Standards for Hazardous Air Polutants, Nov. 1990) in order to rely on analytical results that are ≤ 1%. The coefficient of variation for the estimation quantitation technique is 100% in the range 0-5%.

This means that PLM analysis is not capable of conclusively determining whether a layer containing close to 1% asbestos is actually "positive" or "negative". For this reason, Fiberquant refers to results where asbestos was detected but ≤ 1% as "borderline negative", and results where asbestos was >1 % but <= 2% as "borderline positive" to indicate the uncertainty in assigning a "positive" or "negative" label. In the sample summary, "ND" means that no asbestos was detected during the analysis. A "Tr" or "Trace" of asbestos reported is defined for our purposes as the detection of several asbestos fibers during the analysis; this level would be right at the limit of detection for the method. Trace is only reported on the analysis detail - in the summary a trace would be reported as <=1%. The limit of detection (the smallest % of asbestos that can be detected) varies greatly depending on the matrix in which the asbestos is found. As little as 0.001% asbestos can be detected in favorable samples, while detection in unfavorable samples may approach the detection limit of 1% stated in the method. During the analysis, the analyst, for Fiberquant identification purposes only, determines the "apparent sample type" and "apparent layer types." It must be emphasized that these types are only what is apparent. Often, different materials appear similar or identical after sampling, so the analyst may assign a type other than what was sampled.

Floor tiles present a special problem for PLM asbestos analysis. Floor tile can contain chrysotile fibers so thin that they cannot be resolved by optical methods. In such a case, we may observe a percentage of asbestos which is lower than the actual percentage, or not observe asbestos at all when some is present. For this reason, floor tiles reported as negative should be confirmed to be negative using transmission electron microscope (TEM) analysis. Likewise, vermiculite insulation materials containing traces of asbestiform asbestos present a problem for routine PLM analysis - the amphiboles are sometimes present in trace amounts inhomogeneously distributed. For this reason, loose vermiculite samples reported as negative should be confirmed to contain no amphibole using hydroseparation techniques.

The samples were analyzed under the following ongoing quality assurance program: Blank samples are routinely analyzed to maintain contamination-free materials. Each analyst has at least a bachelor's degree in physical science, and has also completed extensive training specific to asbestos analysis for 1-3 months before being allowed to analyze client samples. Qualitative reference samples are routinely analyzed to assure that analysts

Method: EPA 600/R-93/116Rec: 4/8/2025

Report Date: 4/11/2025 Date Analyzed: 4/8/2025

Fiberquant Internal SOP:

WESTERN TECHNOLOGIES INC

1805 W Drake Dr

Tempe, AZ

Office Phone: (602) 437-3737

FAX: (602) 470-1341

85283-0000

5025 S. 33rd Street Phoenix, Arizona 85040-2816 Phone: 602-276-6139 1-800-743-2687 FAX: 602-276-4558

Fiberquant, Inc. Page 1 of 23

PLM Analysis Summary: Job Number: 202503555 21-825050-0 can identify asbestos and asbestos-look-alike fibers. Quantitative reference samples are routinely analyzed to calibrate and characterize the estimation procedure. Microscope alignment is checked each day. Refractive index oils are calibrated at least quarterly. At least 10% of client samples are re-analyzed from scratch by a different analyst than the original, and any discrepancies are resolved for the sample and similar sample types before the results are reported. All quality checks performed for these samples were in control except as detailed in the "Analytical Notes" below. All analysts participate in interlab round robins and proficiency testing to assure competence. Fiberquant is accredited by NVLAP (Lab code #101031) for the analysis of bulk samples for asbestos using PLM. Accreditation does not imply endorsement by the EPA, any other United States governmental agency or any private agency or association. Each lab analysis refers only to the sample tested, and may not, due to the sampling process, be representative of the material sampled. This report may not be reproduced except in full, without the approval of Fiberquant Analytical Services.

Job Analysis Notes:

Some results may have been calculated using client supplied data, such as volume or area sampled, for which Fiberquant assumes no liability for accuracy.

Sample Number Lab Number Apparent Sample Type * Asbestos Detected Yes or No

Layer Color Apparent Layer Type * Asbestos Results

Cementitious2025-03555- 11A Asbestos Detected? NoSample # no asbestos detectedconcretegrayLayer # 1

Cementitious2025-03555- 21B Asbestos Detected? NoSample # no asbestos detectedconcretegrayLayer # 1

Cementitious2025-03555- 31C Asbestos Detected? NoSample # no asbestos detectedconcretegrayLayer # 1

Cementitious2025-03555- 42A Asbestos Detected? NoSample # no asbestos detectedpaintoff-whiteLayer # 1 no asbestos detectedconcretegrayLayer # 2

Cementitious2025-03555- 52B Asbestos Detected? NoSample # no asbestos detectedpaintoff-whiteLayer # 1 no asbestos detectedconcretegrayLayer # 2

Cementitious2025-03555- 62C Asbestos Detected? NoSample # no asbestos detectedpaintoff-whiteLayer # 1 no asbestos detectedconcretegrayLayer # 2

Cementitious2025-03555- 73A Asbestos Detected? NoSample # no asbestos detectedpainttanLayer # 1 no asbestos detectedconcretegrayLayer # 2

Cementitious2025-03555- 83B Asbestos Detected? NoSample # no asbestos detectedpainttanLayer # 1 no asbestos detectedconcretegrayLayer # 2

Cementitious2025-03555- 93C Asbestos Detected? NoSample # no asbestos detectedpainttanLayer # 1 no asbestos detectedconcretegrayLayer # 2

Adhesive/caulk2025-03555- 104A Asbestos Detected? NoSample # no asbestos detectedpainttanLayer # 1 no asbestos detectedsealanttanLayer # 2

Adhesive/caulk2025-03555- 114B Asbestos Detected? NoSample # no asbestos detectedpainttanLayer # 1 no asbestos detectedsealanttanLayer # 2

Adhesive/caulk2025-03555- 124C Asbestos Detected? NoSample # no asbestos detectedpainttanLayer # 1 no asbestos detectedsealanttanLayer # 2

Adhesive/caulk2025-03555- 135A Asbestos Detected? YesSample # 5-10% chrysotile asbestosmasticblackLayer # 1

Adhesive/caulk2025-03555- 145B Asbestos Detected? YesSample # 5-10% chrysotile asbestosmasticblackLayer # 1

Adhesive/caulk2025-03555- 155C Asbestos Detected? YesSample # 5-10% chrysotile asbestosmasticblackLayer # 1

Roofing2025-03555- 166A Asbestos Detected? NoSample # no asbestos detectedroofing roll/shingleblackLayer # 1 no asbestos detectedroofing roll/shingleblackLayer # 2 no asbestos detectedroofing roll/shingleblackLayer # 3 no asbestos detectedroof ply/bitumenblackLayer # 4 no asbestos detectedroof ply/bitumenblackLayer # 5

Roofing2025-03555- 176B Asbestos Detected? NoSample # no asbestos detectedroofing roll/shingleblackLayer # 1 no asbestos detectedroofing roll/shingleblackLayer # 2 no asbestos detectedroof ply/bitumenblackLayer # 3 no asbestos detectedroof ply/bitumenblackLayer # 4 no asbestos detectedroof ply/bitumenblackLayer # 5

5025 S. 33rd Street Phoenix, Arizona 85040-2816 Phone: 602-276-6139 1-800-743-2687 FAX: 602-276-4558

Fiberquant, Inc. Page 2 of 23

Roofing2025-03555- 186C Asbestos Detected? NoSample # no asbestos detectedroofing roll/shingleblackLayer # 1 no asbestos detectedroofing roll/shingleblackLayer # 2 no asbestos detectedroofing roll/shingleblackLayer # 3 no asbestos detectedroof ply/bitumenblackLayer # 4 no asbestos detectedroof ply/bitumenblackLayer # 5

Adhesive/caulk2025-03555- 197A Asbestos Detected? NoSample # no asbestos detectedsealantoff-whiteLayer # 1

Adhesive/caulk2025-03555- 207B Asbestos Detected? NoSample # no asbestos detectedsealantoff-whiteLayer # 1

Adhesive/caulk2025-03555- 217C Asbestos Detected? NoSample # no asbestos detectedsealantoff-whiteLayer # 1

Flooring2025-03555- 228A Asbestos Detected? NoSample # no asbestos detectedfloor tileoff-whiteLayer # 1 no asbestos detectedmasticyellowLayer # 2

Flooring2025-03555- 238B Asbestos Detected? NoSample # no asbestos detectedfloor tileoff-whiteLayer # 1 no asbestos detectedmasticyellowLayer # 2

Flooring2025-03555- 248C Asbestos Detected? NoSample # no asbestos detectedfloor tileoff-whiteLayer # 1 no asbestos detectedmasticyellowLayer # 2

Adhesive/caulk2025-03555- 259A Asbestos Detected? NoSample # no asbestos detectedsealantoff-whiteLayer # 1

Adhesive/caulk2025-03555- 269B Asbestos Detected? NoSample # no asbestos detectedpaintoff-whiteLayer # 1 no asbestos detectedsealantoff-whiteLayer # 2

Adhesive/caulk2025-03555- 279C Asbestos Detected? NoSample # no asbestos detectedpaintoff-whiteLayer # 1 no asbestos detectedsealantoff-whiteLayer # 2

Adhesive/caulk2025-03555- 2810A Asbestos Detected? NoSample # no asbestos detectedsealantoff-whiteLayer # 1

Adhesive/caulk2025-03555- 2910B Asbestos Detected? NoSample # no asbestos detectedsealantoff-whiteLayer # 1 no asbestos detectedsealantclearLayer # 2

Adhesive/caulk2025-03555- 3010C Asbestos Detected? NoSample # no asbestos detectedsealantoff-whiteLayer # 1

Adhesive/caulk2025-03555- 3111A Asbestos Detected? NoSample # no asbestos detectedpaintoff-whiteLayer # 1 no asbestos detectedsealantoff-whiteLayer # 2 no asbestos detectedsealantoff-whiteLayer # 3

Adhesive/caulk2025-03555- 3211B Asbestos Detected? NoSample # no asbestos detectedsealantoff-whiteLayer # 1 no asbestos detectedsealantclearLayer # 2

Adhesive/caulk2025-03555- 3311C Asbestos Detected? NoSample # no asbestos detectedsealantoff-whiteLayer # 1 no asbestos detectedsealantclearLayer # 2

Adhesive/caulk2025-03555- 3412A Asbestos Detected? NoSample # no asbestos detectedsealantoff-whiteLayer # 1

Adhesive/caulk2025-03555- 3512B Asbestos Detected? NoSample # no asbestos detectedsealantoff-whiteLayer # 1 no asbestos detectedpaintoff-whiteLayer # 2 no asbestos detectedsealantoff-whiteLayer # 3

Adhesive/caulk2025-03555- 3612C Asbestos Detected? NoSample # no asbestos detectedsealantoff-whiteLayer # 1 no asbestos detectedpaintoff-whiteLayer # 2 no asbestos detectedsealantoff-whiteLayer # 3

Surfacing2025-03555- 3713A Asbestos Detected? NoSample # no asbestos detectedpaintgrayLayer # 1

Surfacing2025-03555- 3813B Asbestos Detected? NoSample # no asbestos detectedpaintgrayLayer # 1

Surfacing2025-03555- 3913C Asbestos Detected? NoSample # no asbestos detectedpaintgrayLayer # 1

Adhesive/caulk2025-03555- 4014A Asbestos Detected? NoSample # no asbestos detectedsealantoff-whiteLayer # 1 no asbestos detectedsealantoff-whiteLayer # 2

Adhesive/caulk2025-03555- 4114B Asbestos Detected? NoSample # no asbestos detectedsealantoff-whiteLayer # 1 no asbestos detectedsealantoff-whiteLayer # 2

Adhesive/caulk2025-03555- 4214C Asbestos Detected? NoSample # no asbestos detectedsealantoff-whiteLayer # 1 no asbestos detectedsealantoff-whiteLayer # 2

5025 S. 33rd Street Phoenix, Arizona 85040-2816 Phone: 602-276-6139 1-800-743-2687 FAX: 602-276-4558

Fiberquant, Inc. Page 3 of 23

Wall System2025-03555- 4315A Asbestos Detected? NoSample # no asbestos detectedpaintoff-whiteLayer # 1 no asbestos detectedtexture/joint compoundwhiteLayer # 2 no asbestos detectedpaintoff-whiteLayer # 3 no asbestos detectedtexture/joint compoundwhiteLayer # 4 no asbestos detectedpaintoff-whiteLayer # 5 no asbestos detectedtexture/joint compoundwhiteLayer # 6 no asbestos detectedpaper/cardboardtanLayer # 7 no asbestos detecteddrywall corewhiteLayer # 8

Wall System2025-03555- 4415B Asbestos Detected? NoSample # no asbestos detectedpaintoff-whiteLayer # 1 no asbestos detectedtexture/joint compoundwhiteLayer # 2 no asbestos detectedpaintoff-whiteLayer # 3 no asbestos detectedtexture/joint compoundwhiteLayer # 4 no asbestos detectedpaintoff-whiteLayer # 5 no asbestos detectedtexture/joint compoundwhiteLayer # 6 no asbestos detectedpaper/cardboardtanLayer # 7 no asbestos detecteddrywall corewhiteLayer # 8

Wall System2025-03555- 4515C Asbestos Detected? NoSample # no asbestos detectedpaintoff-whiteLayer # 1 no asbestos detectedtexture/joint compoundwhiteLayer # 2 no asbestos detectedpaintoff-whiteLayer # 3 no asbestos detectedtexture/joint compoundwhiteLayer # 4 no asbestos detectedpaper/cardboardtanLayer # 7 no asbestos detecteddrywall corewhiteLayer # 8

Wall System2025-03555- 4616A Asbestos Detected? NoSample # no asbestos detectedpaintoff-whiteLayer # 1 no asbestos detectedtexture/joint compoundwhiteLayer # 2 no asbestos detectedpaintoff-whiteLayer # 3 no asbestos detectedtexture/joint compoundwhiteLayer # 4 no asbestos detectedpaintoff-whiteLayer # 5 no asbestos detectedtexture/joint compoundwhiteLayer # 6

Wall System2025-03555- 4716B Asbestos Detected? NoSample # no asbestos detectedpaintoff-whiteLayer # 1 no asbestos detectedtexture/joint compoundwhiteLayer # 2

Wall System2025-03555- 4816C Asbestos Detected? NoSample # no asbestos detectedpaintoff-whiteLayer # 1 no asbestos detectedtexture/joint compoundwhiteLayer # 2 no asbestos detectedpaintoff-whiteLayer # 3 no asbestos detectedtexture/joint compoundwhiteLayer # 4

* Apparent Sample Types and Apparent Layer Types are as they appeared to the analyst. Since many types of materials appear similar after sampling damage, the apparent type of material may not be the actual type of material.

5025 S. 33rd Street Phoenix, Arizona 85040-2816 Phone: 602-276-6139 1-800-743-2687 FAX: 602-276-4558

Fiberquant, Inc. Page 4 of 23

PLM Analysis Details Job Number: 202503555 21-825050-0

2025-03555- 11A 4/3/2025Lab Number Sample Sampled:

MCJAnalyzed By 4/8/2025

Homogeneous Cementitious

Yes Non-fibrous SolidOKAn?

1# Layers NoAsbestos Detected?

Apparent Smp Type noneFiber Identification:

Sample Analytical Note

Procedure: tweased apart using forceps. Procedure: dissolution of matrix using dilute HCl acid.

Fibers

Color Mrph Iso Pleo Bi Elg Ext Oil Col Par Col Per RI Par RI Per

Refractive Index Determinations none

Non-Fibrous Components (in approx. decreasing order): powder, rock, Condition: acceptable

Layers

# Layer Type % Color Friability

Calibrated Visual Estimate of Percents of Each Fiber

Fib 1 Fib 2 Fib 3 Fib 4 Fib 5 Fib 6

1 100 n.d. - - - - -concrete gray 1

100Total % n.d. - - - - -Overall %

2025-03555- 21B 4/3/2025Lab Number Sample Sampled:

MCJAnalyzed By 4/8/2025 Homogeneous

Cementitious Yes

Non-fibrous SolidOKAn?

6# Layers NoAsbestos Detected?

Apparent Smp Type noneFiber Identification:

Sample Analytical Note

Procedure: tweased apart using forceps. Procedure: dissolution of matrix using dilute HCl acid.

Fibers

Color Mrph Iso Pleo Bi Elg Ext Oil Col Par Col Per RI Par RI Per

Refractive Index Determinations none

Non-Fibrous Components (in approx. decreasing order): powder, rock, Condition: acceptable

Layers

# Layer Type % Color Friability

Calibrated Visual Estimate of Percents of Each Fiber

Fib 1 Fib 2 Fib 3 Fib 4 Fib 5 Fib 6

1 100 n.d. - - - - -concrete gray 1

100Total % n.d. - - - - -Overall %

2025-03555- 31C 4/3/2025Lab Number Sample Sampled:

MCJAnalyzed By 4/8/2025

Homogeneous Cementitious

Yes Non-fibrous SolidOKAn?

1# Layers NoAsbestos Detected?

Apparent Smp Type noneFiber Identification:

Sample Analytical Note

Procedure: tweased apart using forceps. Procedure: dissolution of matrix using dilute HCl acid.

Fibers

Color Mrph Iso Pleo Bi Elg Ext Oil Col Par Col Per RI Par RI Per

Refractive Index Determinations none

Non-Fibrous Components (in approx. decreasing order): powder, rock, Condition: acceptable

Layers

# Layer Type % Color Friability

Calibrated Visual Estimate of Percents of Each Fiber

Fib 1 Fib 2 Fib 3 Fib 4 Fib 5 Fib 6

1 100 n.d. - - - - -concrete gray 1

100Total % n.d. - - - - -Overall %

5025 S. 33rd Street Phoenix, Arizona 85040-2816 Phone: 602-276-6139 1-800-743-2687 FAX: 602-276-4558

Fiberquant, Inc. Page 5 of 23

2025-03555- 42A 4/3/2025Lab Number Sample Sampled:

MCJAnalyzed By 4/8/2025

Homogeneous Cementitious

No Non-fibrous SolidOKAn?

2# Layers NoAsbestos Detected?

Apparent Smp Type noneFiber Identification:

Sample Analytical Note

Procedure: tweased apart using forceps. Procedure: dissolution of matrix using dilute HCl acid.

Fibers

Color Mrph Iso Pleo Bi Elg Ext Oil Col Par Col Per RI Par RI Per

Refractive Index Determinations none

Non-Fibrous Components (in approx. decreasing order): powder, rock, Condition: acceptable

Layers

# Layer Type % Color Friability

Calibrated Visual Estimate of Percents of Each Fiber

Fib 1 Fib 2 Fib 3 Fib 4 Fib 5 Fib 6

1 1 n.d. - - - - -paint off-white 1 2 99 n.d. - - - - -concrete gray 1

100Total % n.d. - - - - -Overall %

2025-03555- 52B 4/3/2025Lab Number Sample Sampled:

MCJAnalyzed By 4/8/2025

Homogeneous Cementitious

No Non-fibrous SolidOKAn?

2# Layers NoAsbestos Detected?

Apparent Smp Type noneFiber Identification:

Sample Analytical Note

Procedure: tweased apart using forceps. Procedure: dissolution of matrix using dilute HCl acid.

Fibers

Color Mrph Iso Pleo Bi Elg Ext Oil Col Par Col Per RI Par RI Per

Refractive Index Determinations none

Non-Fibrous Components (in approx. decreasing order): powder, rock, Condition: acceptable

Layers

# Layer Type % Color Friability

Calibrated Visual Estimate of Percents of Each Fiber

Fib 1 Fib 2 Fib 3 Fib 4 Fib 5 Fib 6

1 1 n.d. - - - - -paint off-white 1 2 99 n.d. - - - - -concrete gray 1

100Total % n.d. - - - - -Overall %

2025-03555- 62C 4/3/2025Lab Number Sample Sampled:

MCJAnalyzed By 4/8/2025

Homogeneous Cementitious

No Non-fibrous SolidOKAn?

2# Layers NoAsbestos Detected?

Apparent Smp Type noneFiber Identification:

Sample Analytical Note

Procedure: tweased apart using forceps. Procedure: dissolution of matrix using dilute HCl acid.

Fibers

Color Mrph Iso Pleo Bi Elg Ext Oil Col Par Col Per RI Par RI Per

Refractive Index Determinations none

Non-Fibrous Components (in approx. decreasing order): powder, rock, Condition: acceptable

Layers

# Layer Type % Color Friability

Calibrated Visual Estimate of Percents of Each Fiber

Fib 1 Fib 2 Fib 3 Fib 4 Fib 5 Fib 6

1 1 n.d. - - - - -paint off-white 1 2 99 n.d. - - - - -concrete gray 1

5025 S. 33rd Street Phoenix, Arizona 85040-2816 Phone: 602-276-6139 1-800-743-2687 FAX: 602-276-4558

Fiberquant, Inc. Page 6 of 23

2025-03555- 73A 4/3/2025Lab Number Sample Sampled:

MCJAnalyzed By 4/9/2025

Homogeneous Cementitious

Yes Non-fibrous SolidOKAn?

6# Layers NoAsbestos Detected?

Apparent Smp Type noneFiber Identification:

Sample Analytical Note

Procedure: tweased apart using forceps. Procedure: dissolution of matrix using dilute HCl acid.

Fibers

Color Mrph Iso Pleo Bi Elg Ext Oil Col Par Col Per RI Par RI Per

Refractive Index Determinations none

Non-Fibrous Components (in approx. decreasing order): powder, rock, binder

Condition: acceptable

Layers

# Layer Type % Color Friability

Calibrated Visual Estimate of Percents of Each Fiber

Fib 1 Fib 2 Fib 3 Fib 4 Fib 5 Fib 6

1 95 n.d. - - - - -paint tan 1 2 5 n.d. - - - - -concrete gray 1

100Total % n.d. - - - - -Overall %

2025-03555- 83B 4/3/2025Lab Number Sample Sampled:

MCJAnalyzed By 4/9/2025

Homogeneous Cementitious

Yes Non-fibrous SolidOKAn?

6# Layers NoAsbestos Detected?

Apparent Smp Type glass fiberFiber Identification:

Sample Analytical Note

Procedure: tweased apart using forceps. Procedure: dissolution of matrix using dilute HCl acid.

Fibers

Color Mrph Iso Pleo Bi Elg Ext Oil Col Par Col Per RI Par RI Per

Refractive Index Determinations glass fiber CL D Y

Non-Fibrous Components (in approx. decreasing order): powder, rock, binder

Condition: acceptable

Layers

# Layer Type % Color Friability

Calibrated Visual Estimate of Percents of Each Fiber

Fib 1 Fib 2 Fib 3 Fib 4 Fib 5 Fib 6

1 95 n.d. - - - - -paint tan 1 2 5 2-5% - - - - -concrete gray 1

100Total % <=1% - - - - -Overall %

2025-03555- 93C 4/3/2025Lab Number Sample Sampled:

MCJAnalyzed By 4/9/2025

Homogeneous Cementitious

Yes Non-fibrous SolidOKAn?

6# Layers NoAsbestos Detected?

Apparent Smp Type noneFiber Identification:

Sample Analytical Note

Procedure: tweased apart using forceps. Procedure: dissolution of matrix using dilute HCl acid.

Fibers

Color Mrph Iso Pleo Bi Elg Ext Oil Col Par Col Per RI Par RI Per

Refractive Index Determinations none

Non-Fibrous Components (in approx. decreasing order): powder, rock, binder

Condition: acceptable

Layers

# Layer Type % Color Friability

Calibrated Visual Estimate of Percents of Each Fiber

Fib 1 Fib 2 Fib 3 Fib 4 Fib 5 Fib 6

1 95 n.d. - - - - -paint tan 1 2 5 n.d. - - - - -concrete gray 1

5025 S. 33rd Street Phoenix, Arizona 85040-2816 Phone: 602-276-6139 1-800-743-2687 FAX: 602-276-4558

Fiberquant, Inc. Page 7 of 23

2025-03555- 104A 4/3/2025Lab Number Sample Sampled:

MCJAnalyzed By 4/9/2025

Homogeneous Adhesive/caulk

No RubberyOKAn?

6# Layers NoAsbestos Detected?

Apparent Smp Type none Fiber Identification:

Sample Analytical Note

Procedure: tweased apart using forceps. Procedure: dissolution of polymer matrix using solvent.

Fibers

Color Mrph Iso Pleo Bi Elg Ext Oil Col Par Col Per RI Par RI Per

Refractive Index Determinations none

Non-Fibrous Components (in approx. decreasing order): polymer, filler, Condition: acceptable

Layers

# Layer Type % Color Friability

Calibrated Visual Estimate of Percents of Each Fiber

Fib 1 Fib 2 Fib 3 Fib 4 Fib 5 Fib 6

1 2 n.d. - - - - -paint tan 1 2 98 n.d. - - - - -sealant tan 1

100Total % n.d. - - - - -Overall %

2025-03555- 114B 4/3/2025Lab Number Sample Sampled:

MCJAnalyzed By 4/9/2025

Homogeneous Adhesive/caulk

No RubberyOKAn?

6# Layers NoAsbestos Detected?

Apparent Smp Type none Fiber Identification:

Sample Analytical Note

Procedure: tweased apart using forceps. Procedure: dissolution of polymer matrix using solvent.

Fibers

Color Mrph Iso Pleo Bi Elg Ext Oil Col Par Col Per RI Par RI Per

Refractive Index Determinations

Layers

# Layer Type % Color Friability

Calibrated Visual Estimate of Percents of Each Fiber

Fib 1 Fib 2 Fib 3 Fib 4 Fib 5 Fib 6

1 2 n.d. - - - - -paint tan 1 2 98 n.d. - - - - -sealant tan 1

100Total % n.d. - - - - -Overall %

2025-03555- 124C 4/3/2025Lab Number Sample Sampled:

MCJAnalyzed By 4/9/2025

Homogeneous Adhesive/caulk

No RubberyOKAn?

6# Layers NoAsbestos Detected?

Apparent Smp Type none Fiber Identification:

Sample Analytical Note

Procedure: tweased apart using forceps. Procedure: dissolution of polymer matrix using solvent.

Fibers

Color Mrph Iso Pleo Bi Elg Ext Oil Col Par Col Per RI Par RI Per

Refractive Index Determinations

Layers

# Layer Type % Color Friability

Calibrated Visual Estimate of Percents of Each Fiber

Fib 1 Fib 2 Fib 3 Fib 4 Fib 5 Fib 6

1 2 n.d. - - - - -paint tan 1 2 98 n.d. - - - - -sealant tan 1

5025 S. 33rd Street Phoenix, Arizona 85040-2816 Phone: 602-276-6139 1-800-743-2687 FAX: 602-276-4558

Fiberquant, Inc. Page 8 of 23

2025-03555- 135A 4/3/2025Lab Number Sample Sampled:

MCJAnalyzed By 4/9/2025

Homogeneous Adhesive/caulk

Yes Fibrous SolidOKAn?

1# Layers YesAsbestos Detected?

Apparent Smp Type chrysotile asbestosFiber Identification:

Sample Analytical Note

Procedure: tweased apart using forceps. Procedure: dissolution of matrix using solvent.

Fibers

Color Mrph Iso Pleo Bi Elg Ext Oil Col Par Col Per RI Par RI Per

Refractive Index Determinations

1.561 1.553chrysotile asbestos 1.550 db/ly sb/oW A N N L + P

Non-Fibrous Components (in approx. decreasing order): filler, polymer, Condition: acceptable

Layers

# Layer Type % Color Friability

Calibrated Visual Estimate of Percents of Each Fiber

Fib 1 Fib 2 Fib 3 Fib 4 Fib 5 Fib 6

1 100 5-10% - - - - -mastic black 1

100Total % 5-10% - - - - -Overall %

2025-03555- 145B 4/3/2025Lab Number Sample Sampled:

MCJAnalyzed By 4/9/2025 Homogeneous

Adhesive/caulk Yes

Fibrous SolidOKAn?

6# Layers YesAsbestos Detected?

Apparent Smp Type chrysotile asbestosFiber Identification:

Sample Analytical Note

Procedure: tweased apart using forceps. Procedure: dissolution of matrix using solvent.

Fibers

Color Mrph Iso Pleo Bi Elg Ext Oil Col Par Col Per RI Par RI Per

Refractive Index Determinations

1.561 1.553chrysotile asbestos 1.550 db/ly sb/oW A N N L + P

Non-Fibrous Components (in approx. decreasing order): filler, polymer, Condition: acceptable

Layers

# Layer Type % Color Friability

Calibrated Visual Estimate of Percents of Each Fiber

Fib 1 Fib 2 Fib 3 Fib 4 Fib 5 Fib 6

1 100 5-10% - - - - -mastic black 1

100Total % 5-10% - - - - -Overall %

2025-03555- 155C 4/3/2025Lab Number Sample Sampled:

MCJAnalyzed By 4/9/2025

Homogeneous Adhesive/caulk

Yes Fibrous SolidOKAn?

6# Layers YesAsbestos Detected?

Apparent Smp Type chrysotile asbestosFiber Identification:

Sample Analytical Note

Procedure: tweased apart using forceps. Procedure: dissolution of matrix using solvent.

Fibers

Color Mrph Iso Pleo Bi Elg Ext Oil Col Par Col Per RI Par RI Per

Refractive Index Determinations

1.561 1.553chrysotile asbestos 1.550 db/ly sb/oW A N N L + P

Non-Fibrous Components (in approx. decreasing order): filler, polymer, Condition: acceptable

Layers

# Layer Type % Color Friability

Calibrated Visual Estimate of Percents of Each Fiber

Fib 1 Fib 2 Fib 3 Fib 4 Fib 5 Fib 6

1 100 5-10% - - - - -mastic black 1

100Total % 5-10% - - - - -Overall %

5025 S. 33rd Street Phoenix, Arizona 85040-2816 Phone: 602-276-6139 1-800-743-2687 FAX: 602-276-4558

Fiberquant, Inc. Page 9 of 23

2025-03555- 166A 4/3/2025Lab Number Sample Sampled:

MCJAnalyzed By 4/9/2025

Homogeneous Roofing

No Fibrous SolidOKAn?

6# Layers NoAsbestos Detected?

Apparent Smp Type glass fiber cellulose fiberFiber Identification:

Sample Analytical Note

Procedure: tweased apart using forceps. Procedure: dissolution of bitumen matrix using solvent.

Fibers

Color Mrph Iso Pleo Bi Elg Ext Oil Col Par Col Per RI Par RI Per

Refractive Index Determinations glass fiber cellulose fiber

CL D Y

W F N N H + U

Non-Fibrous Components (in approx. decreasing order): bitumen, filler, rock

Condition: acceptable

Layers

# Layer Type % Color Friability

Calibrated Visual Estimate of Percents of Each Fiber

Fib 1 Fib 2 Fib 3 Fib 4 Fib 5 Fib 6

1 30 5-10% n.d. - - - -roofing roll/shingle black 1 2 30 5-10% n.d. - - - -roofing roll/shingle black 1 3 30 5-10% n.d. - - - -roofing roll/shingle black 1 4 5 n.d. 70-80% - - - -roof ply/bitumen black 1 5 5 n.d. 70-80% - - - -roof ply/bitumen black 1

100Total % 5-10% 5-10% - - - -Overall %

2025-03555- 176B 4/3/2025Lab Number Sample Sampled:

MCJAnalyzed By 4/9/2025

Homogeneous Roofing

No Fibrous SolidOKAn?

5# Layers NoAsbestos Detected?

Apparent Smp Type glass fiber cellulose fiberFiber Identification:

Sample Analytical Note

Procedure: tweased apart using forceps. Procedure: dissolution of bitumen matrix using solvent.

Fibers

Color Mrph Iso Pleo Bi Elg Ext Oil Col Par Col Per RI Par RI Per

Refractive Index Determinations glass fiber cellulose fiber

CL D Y

W F N N H…