5-AZ 15-15 11 LAM Report.pdf

ENVIRONMENTAL

SERVICES

Client Name: Gila River Indian Community Department of Community Housing

Project Name: HUD Unit AZ 15-15 #11

134 West Chiadag Street Sacaton, Arizona

Project Number: 21-825047-0

Report Issuance: April 25, 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 15-15 #11

134 West Chiadag Street, Sacaton, Arizona 85147

Facility Description/Construction Date: Single-Family Residence/1978

Date of Survey: 4/7/2025

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 60 4/7/2025

Fiberquant 101031-0

Asbestos-Containing Material (ACM)

Lead X-Ray Fluorescence, Niton XLp 300A 254 4/7/2025

WT

LBP-2695-3

Lead-based Paint

(LBP)

Mold Direct Observation -- 4/7/2025 Not Applicable Moisture Intrusion

Identified Materials:

Constituent Material Functional Space Result

NESHAP

Category

ACM Sealant, black 13, Roof Penetrations 2-5% chrysotile asbestos CAT II

ACM

Linoleum flooring, brown/off-white

2A, 3, 8A, Floors 20-30% chrysotile asbestos CAT II

ACM Vinyl floor tile, dark tan 1A, 1B,1C, 2B, 1D, 5A, 5B, 6A, 6B, 9A, 9B, 9C, Floors 1-5% chrysotile asbestos CAT II

LBP None -- -- --

Mold Drywall 4 and 7 Isolated mold on water heater closet wall and tub sealant in bathroom

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. 21-825047-0 April 25, 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 15-15 #11 134 West Chiadag 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. 21-825047-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, 2,067 square-foot residential unit which was vacant at the time of the survey. The slab-on-grade structure had block and mortar walls with a gabled asphalt-shingled roof. The building was constructed in 1978.

4.0 FIELD ACTIVITIES AND RESULTS

4.1 Asbestos Survey

Quentin Tortora, an EPA-accredited building inspector with Certerra, conducted the survey on April 7, 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 60 samples of 20 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 13, Foundation No asbestos detected

Concrete 2A, 2B, 2C 13, Sidewalk/driveway No asbestos detected

Paint, white, Brick and mortar 3A, 3B, 3C 13, Exterior walls No asbestos detected

Sealant, black/white 4A, 4B, 4C 13, Roof penetrations 2-5 % Chrysotile Asbestos

(black) Multi-layer, Shingles, asphalt, Mastic, black 5A, 5B, 5C 13, Roof No asbestos detected

Sealant, white 6A, 6B, 6C 1A, 3, Doorframe No asbestos detected

Sealant, white 7A, 7B, 7C 1A, 2A, 5A, 6A, 8A, 9A, Windows No asbestos detected

Sealant, white 8A, 8B, 8C Throughout, Baseboards No asbestos detected

Sealant, white 9A, 9B, 9C 2A, Countertop No asbestos detected

Undercoat, gray 10A, 10B, 10C 2A, Sink No asbestos detected Linoleum, brown/off-white, Backing, gray, Mastic, tan

11A, 11B, 11C 2A, 3, 8A, Floors 20-30 % Chrysotile Asbestos (backing)

Vinyl floor tile, 12-inch, dark tan, Mastic, black

12A, 12B, 12C 1A, 1B, 1C,1D, 2B, 5A, 5B, 6A, 6B, 9A, 9B, 9C, 10 Floors

>1-2 % Chrysotile Asbestos (floor tile)

2-5% Chrysotile (black mastic)

Vinyl floor tile, 12-inch, light tan, Mastic, yellow

13A, 13B, 13C 7, Floor No asbestos detected

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

14A, 14B, 14C Throughout, Walls/ceiling No asbestos detected

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

Table 1, Summary of Homogeneous Materials

Material Description Sample Nos.

Material Location by

Functional Space Result

Joint compound 15A, 15B, 15C Throughout, Walls/ceiling No asbestos detected

Popcorn ceiling texture 16A, 16B, 16C 5A, 6A, 9A, Ceilings No asbestos detected

Sealant, white 17A, 17B, 17C 7, 8A, Sink No asbestos detected

Sealant, white 18A, 18B, 18C 7, 8A, Tub/shower No asbestos detected Covebase, black/brown, Mastic, tan 19A, 19B, 19C 2A, 3, 8A, 8B, Walls No asbestos detected

Paint, white, Brick, brown, Mortar, gray

20A, 20B, 20C 12, Fireplace No asbestos detected

4.2 Lead-Based Paint Survey

Maria Strachan, a lead-based paint risk assessor, conducted the survey on April 7, 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 254 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 and tabular summary of the XRF readings are presented in Appendix E.

4.3 Visual Mold Observation and Screening

On April 7, 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

2A Not Observed Not Observed 428 72.0 19.4

3 Not Observed Not Observed 436 73.2 17.8

4 Condensation Isolated 479 73.2 18.5

7 Condensation Isolated 443 72.7 18.1

13 Not Observed Not Observed 407 78.0 16.2 ppm, Parts per million °F, Degrees Fahrenheit

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5.0 RECOMMENDATIONS

Approximately 5 square feet of ACM black roof penetration sealant was identified around the roof penetrations of the building. The ACM roof penetration sealant is categorized by NESHAP as Category II, non-friable. The ACM roof penetration sealant is deregulated by OSHA.

Approximately 170 square feet of ACM linoleum flooring was observed in FS 2A, 3, and 8A in the building. The ACM backing of the linoleum flooring is considered a friable material and categorized by NESHAP as a regulated asbestos-containing material (RACM). .

Approximately 1,800 square feet of ACM dark tan, vinyl floor tile was observed throughout FS 1A, 1B, 1C, 2B, 1D, 5A, 5B, 6A, 6B, 9A, 9B, and 9C in the building. The asbestos-containing linoleum flooring, and dark tan vinyl floor tile is categorized by NESHAP as Category II, nonfriable.

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.

Localized mold was observed on the wall in the water heater closet of FS 4 and around the bathroom tub sealant in FS 7 in the building. The presence of mold in FS 4 was likely attributed to a potential water heater malfunction/corrosion which caused water leakage. The presence of mold in FS 7 was likely attributed to condensation from the former use of the bathroom. 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.

6.0 LIMITATIONS

Conditions can exist within structures and below the ground surface that are not apparent visually or disclosed by sampling data. This study is limited to the conditions expressly disclosed in this report, and it does not represent the assessment or absence of any other conditions on or affecting the Property. Certerra’s findings are based on the assumption that the sampling locations, and the resulting data, are representative of assessed conditions. Certerra’s interpretation, discussion and opinions of the results obtained from the referenced methods, observed conditions, and tested samples are applicable only to the specifically tested locations at the times stated herein.

The regulatory standards referenced in this report are based on our knowledge of applicable regulatory standards in effect at the time the work was performed. Certerra cannot anticipate potential future changes to regulatory standards by appropriate governmental agencies.

This asbestos inspection report is not intended to be used as design for abatement activities. It is prepared to identify locations and other specific information regarding the ACMs identified at the time of the inspection under our specific scope of work tasks. Potential damage caused to the structure(s) during the inspection was described in our proposal, accepted and acknowledged by acceptance of the proposal by the Owner, and is unavoidable when conducting asbestos surveys.

Certerra has performed our services in accordance with our contract with our Client, utilizing the ordinary degree of skill and care practiced by other firms providing similar services in the locality of the site. No other warranty or representation expressed, or implied, is made.

APPENDIX A

FIGURES

N

FIGURE 1. AERIAL PHOTOGRAPH

Environmental Services HUD Unit AZ 15-15 #11 134 West Chiadag Street Sacaton, Arizona

Certerra Job No. 25-825047-0

Property

West Wipsmal Street

West Chiadag Street

C h o lla

A ve n u e

FIGURE 2. FUNCTIONAL SPACE MAP

Environmental Services HUD Unit AZ 15-15 #11 134 West Chiadag Street Sacaton, Arizona

Certerra Job No. 25-825047-0

12 = Exterior fireplace 13 = Exterior and roof

9A

1A

2B

2A

5A 6A

5B

6B

1C

1B

1D

8A

8B

9C9B

DRAWING NOT TO SCALE

Fireplace

Storage (Not Accessible)

CARPORT

FIGURE 3. ASBESTOS LOCATION MAP

Environmental Services HUD Unit AZ 15-15 #11 134 West Chiadag Street Sacaton, Arizona

Certerra Job No. 25-825047-0

12 = Exterior fireplace 13 = Exterior and roof

9A

1A

2B

2A

5A 6A

5B

6B

Fireplace

1C

1B

1D

8A

8B

9C9B

DRAWING NOT TO SCALE

ASBESTOS-CONTAINING MATERIAL

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

• ACM Linoleum Flooring, brown/off-white, FS 2A, 3, and 8A, 20-30% Chrysotile Asbestos, ~170 sf

• ACM Vinyl Floor Tile & Mastic, dark tan, FS 1A, 1B,1C, 2B, 1D, 5A, 5B, 6A, 6B, 9A, 9B, and 9C, 10, >1-2% (floor tile) & 2-5% (black mastic), ~1,800 sf

Storage (Not Accessible)

FIGURE 4. ROOM EQUIVALENT DIAGRAM

Environmental Services HUD Unit AZ 15-15 #11 134 West Chiadag Street Sacaton, Arizona

Certerra Job No. 25-825047-0

12 = Exterior fireplace 13 = Exterior and roof A = Denotes Side

9A

1A

2B

2A

5A 6A

5B

6B

1C

1B

1D

8A

8B

9C9B

DRAWING NOT TO SCALE

West Chiadag Street

C

A

B D

Storage (Not Accessible)

Fireplace

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: The driveway and sidewalk in front of the residence.

6: An inaccessible storage room in front of the residence.

Certerra Job No: 21-825047-0

Inspection Date: April 7, 2025

7: A fireplace in the back of the residence. 8: Typical bedroom with vinyl floor tiles, and drywall wall and ceiling systems.

9: Bathroom with vanity, toilet, and bathtub. 10: Indication of mold around the tub in the bathroom (FS 7).

11: Kitchen with cabinets and ACM linoleum floor system (FS 2A, 3, and 8A)

12: Painted living room with ACM vinyl floor tiles and drywall system walls and ceiling (FS 1A, 1B, 2B, 1D, 5A, 5B, 6A, 6B, 9A, 9B, 1C, and 9C).

Job No: 21-825047-0

Recon Date: April 7, 2025

APPENDIX C

CERTIFICATIONS AND ACCREDITATIONS

Quentin Tortora

January 09, 2025

ON-188748-16674-010925

9-Jan-2025

09-Jan-2026

Powered by TCPDF (www.tcpdf.org) http://www.tcpdf.org

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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: 21-825047-0 PO Number: HU Unit AZ

JobNumber: 202503551

Routing Number: 15-15 #11

# Samples: 60

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: 4/9/2025 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 31

PLM Analysis Summary: Job Number: 202503551 21-825047-0 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

Cementitious2025-03551- 11A Asbestos Detected? NoSample # no asbestos detectedconcretegrayLayer # 1

Cementitious2025-03551- 21B Asbestos Detected? NoSample # no asbestos detectedconcretegrayLayer # 1

Cementitious2025-03551- 31C Asbestos Detected? NoSample # no asbestos detectedconcretegrayLayer # 1

Cementitious2025-03551- 42A Asbestos Detected? NoSample # no asbestos detectedconcretegrayLayer # 1

Cementitious2025-03551- 52B Asbestos Detected? NoSample # no asbestos detectedconcretegrayLayer # 1

Cementitious2025-03551- 62C Asbestos Detected? NoSample # no asbestos detectedconcretegrayLayer # 1

Miscellaneous2025-03551- 73A Asbestos Detected? NoSample # no asbestos detectedpaintoff-whiteLayer # 1 no asbestos detectedblockbrownLayer # 2 no asbestos detectedmortargrayLayer # 3

Miscellaneous2025-03551- 83B Asbestos Detected? NoSample # no asbestos detectedpaintoff-whiteLayer # 1 no asbestos detectedblockbrownLayer # 2 no asbestos detectedmortargrayLayer # 3

Miscellaneous2025-03551- 93C Asbestos Detected? NoSample # no asbestos detectedpaintoff-whiteLayer # 1 no asbestos detectedblockbrownLayer # 2 no asbestos detectedmortargrayLayer # 3

Adhesive/caulk2025-03551- 104A Asbestos Detected? YesSample # no asbestos detectedcoatingoff-whiteLayer # 1

2-5% chrysotile asbestosmasticblackLayer # 2

Roofing2025-03551- 114B Asbestos Detected? NoSample # no asbestos detectedroofing roll/shingleblackLayer # 1 no asbestos detectedmasticblackLayer # 2

Adhesive/caulk2025-03551- 124C Asbestos Detected? YesSample # 2-5% chrysotile asbestosmasticblackLayer # 1

Roofing2025-03551- 135A Asbestos Detected? NoSample # no asbestos detectedroofing roll/shingleblackLayer # 1 no asbestos detectedroofing roll/shingleblackLayer # 2 no asbestos detectedbitumen sheetingblackLayer # 3

Roofing2025-03551- 145B Asbestos Detected? NoSample # no asbestos detectedroofing roll/shingleblackLayer # 1 no asbestos detectedroofing roll/shingleblackLayer # 2 no asbestos detectedbitumen sheetingblackLayer # 3

Roofing2025-03551- 155C Asbestos Detected? NoSample # no asbestos detectedroofing roll/shingleblackLayer # 1 no asbestos detectedbitumen sheetingblackLayer # 2

Adhesive/caulk2025-03551- 166A Asbestos Detected? NoSample # no asbestos detectedpaintoff-whiteLayer # 1 no asbestos detectedcaulkwhiteLayer # 2

Adhesive/caulk2025-03551- 176B Asbestos Detected? NoSample # no asbestos detectedpaintoff-whiteLayer # 1 no asbestos detectedcaulkwhiteLayer # 2

Adhesive/caulk2025-03551- 186C Asbestos Detected? NoSample # no asbestos detectedpaintoff-whiteLayer # 1 no asbestos detectedcaulkwhiteLayer # 2

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 31

Adhesive/caulk2025-03551- 197A Asbestos Detected? NoSample # no asbestos detectedcaulkwhiteLayer # 2

Adhesive/caulk2025-03551- 207B Asbestos Detected? NoSample # no asbestos detectedpaintoff-whiteLayer # 1 no asbestos detectedcaulkwhiteLayer # 2

Adhesive/caulk2025-03551- 217C Asbestos Detected? NoSample # no asbestos detectedpaintoff-whiteLayer # 1 no asbestos detectedcaulkwhiteLayer # 2

Adhesive/caulk2025-03551- 228A Asbestos Detected? NoSample # no asbestos detectedcaulkwhiteLayer # 1 no asbestos detecteddebrisvariousLayer # 2

Adhesive/caulk2025-03551- 238B Asbestos Detected? NoSample # no asbestos detectedcaulkwhiteLayer # 1 no asbestos detecteddebrisvariousLayer # 2

Adhesive/caulk2025-03551- 248C Asbestos Detected? NoSample # no asbestos detectedcaulkwhiteLayer # 1 no asbestos detecteddebrisvariousLayer # 2

Adhesive/caulk2025-03551- 259A Asbestos Detected? NoSample # no asbestos detectedcaulkwhiteLayer # 1

Adhesive/caulk2025-03551- 269B Asbestos Detected? NoSample # no asbestos detectedcaulkwhiteLayer # 1

Adhesive/caulk2025-03551- 279C Asbestos Detected? NoSample # no asbestos detectedcaulkwhiteLayer # 1

Adhesive/caulk2025-03551- 2810A Asbestos Detected? NoSample # no asbestos detectedcaulkwhiteLayer # 1

Adhesive/caulk2025-03551- 2910B Asbestos Detected? NoSample # no asbestos detectedcaulkwhiteLayer # 1

Adhesive/caulk2025-03551- 3010C Asbestos Detected? NoSample # no asbestos detectedcaulkwhiteLayer # 1

Flooring2025-03551- 3111A Asbestos Detected? YesSample # no asbestos detectedsheet flooring surfaceoff-whiteLayer # 1

20-30% chrysotile asbestossheet flooring backinggrayLayer # 2 no asbestos detectedmastictanLayer # 3

Flooring2025-03551- 3211B Asbestos Detected? YesSample # no asbestos detectedsheet flooring surfaceoff-whiteLayer # 1

20-30% chrysotile asbestossheet flooring backinggrayLayer # 2 no asbestos detectedmastictanLayer # 3

Flooring2025-03551- 3311C Asbestos Detected? YesSample # no asbestos detectedsheet flooring surfaceoff-whiteLayer # 1

20-30% chrysotile asbestossheet flooring backinggrayLayer # 2 no asbestos detectedmastictanLayer # 3

Flooring2025-03551- 3412A Asbestos Detected? YesSample # >1-2% chrysotile asbestosfloor tiletanLayer # 1

2-5% chrysotile asbestosmasticblackLayer # 2

Flooring2025-03551- 3512B Asbestos Detected? YesSample # >1-2% chrysotile asbestosfloor tiletanLayer # 1

2-5% chrysotile asbestosmasticblackLayer # 2

Flooring2025-03551- 3612C Asbestos Detected? YesSample # >1-2% chrysotile asbestosfloor tiletanLayer # 1

2-5% chrysotile asbestosmasticblackLayer # 2

Flooring2025-03551- 3713A Asbestos Detected? NoSample # no asbestos detectedfloor tileoff-whiteLayer # 1 no asbestos detectedmasticyellowLayer # 2

Flooring2025-03551- 3813B Asbestos Detected? NoSample # no asbestos detectedfloor tileoff-whiteLayer # 1 no asbestos detectedmasticyellowLayer # 2

Flooring2025-03551- 3913C Asbestos Detected? NoSample # no asbestos detectedfloor tileoff-whiteLayer # 1 no asbestos detectedmasticyellowLayer # 2

Wall System2025-03551- 4014A Asbestos Detected? NoSample # no asbestos detectedpaintoff-whiteLayer # 1 no asbestos detectedtexture/joint compoundwhiteLayer # 2 no asbestos detectedpaper/cardboardtanLayer # 3 no asbestos detecteddrywall corewhiteLayer # 4

Wall System2025-03551- 4114B Asbestos Detected? NoSample # no asbestos detectedpaintoff-whiteLayer # 1 no asbestos detectedtexture/joint compoundwhiteLayer # 2 no asbestos detectedpaper/cardboardtanLayer # 3 no asbestos detecteddrywall corewhiteLayer # 4

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 31

Wall System2025-03551- 4214C Asbestos Detected? NoSample # no asbestos detectedtexture/joint compoundwhiteLayer # 2 no asbestos detectedpaper/cardboardtanLayer # 3 no asbestos detecteddrywall corewhiteLayer # 4

Wall System2025-03551- 4315A Asbestos Detected? NoSample # no asbestos detectedpaintoff-whiteLayer # 1 no asbestos detectedtexture/joint compoundwhiteLayer # 2

Wall System2025-03551- 4415B Asbestos Detected? NoSample # no asbestos detectedpaintoff-whiteLayer # 1 no asbestos detectedtexture/joint compoundwhiteLayer # 2

Wall System2025-03551- 4515C Asbestos Detected? NoSample # no asbestos detectedpaintoff-whiteLayer # 1 no asbestos detectedtexture/joint compoundwhiteLayer # 2

Sprayed Material2025-03551- 4616A Asbestos Detected? NoSample # no asbestos detectedpaintoff-whiteLayer # 1 no asbestos detectedspray-on ceilingwhiteLayer # 2

Sprayed Material2025-03551- 4716B Asbestos Detected? NoSample # no asbestos detectedpaintoff-whiteLayer # 1 no asbestos detectedspray-on ceilingwhiteLayer # 2

Sprayed Material2025-03551- 4816C Asbestos Detected? NoSample # no asbestos detectedpaintoff-whiteLayer # 1 no asbestos detectedspray-on ceilingwhiteLayer # 2

Adhesive/caulk2025-03551- 4917A Asbestos Detected? NoSample # no asbestos detectedcaulkoff-whiteLayer # 1

Adhesive/caulk2025-03551- 5017B Asbestos Detected? NoSample # no asbestos detectedcaulkoff-whiteLayer # 1

Adhesive/caulk2025-03551- 5117C Asbestos Detected? NoSample # no asbestos detectedcaulkoff-whiteLayer # 1

Adhesive/caulk2025-03551- 5218A Asbestos Detected? NoSample # no asbestos detectedcaulkoff-whiteLayer # 1

Adhesive/caulk2025-03551- 5318B Asbestos Detected? NoSample # no asbestos detectedcaulkoff-whiteLayer # 1

Adhesive/caulk2025-03551- 5418C Asbestos Detected? NoSample # no asbestos detectedcaulkoff-whiteLayer # 1

Miscellaneous2025-03551- 5519A Asbestos Detected? NoSample # no asbestos detectedbase covebrownLayer # 1 no asbestos detectedmasticbrownLayer # 2

Miscellaneous2025-03551- 5619B Asbestos Detected? NoSample # no asbestos detectedbase covebrownLayer # 1 no asbestos detectedmasticbrownLayer # 2

Miscellaneous2025-03551- 5719C Asbestos Detected? NoSample # no asbestos detectedbase coveblackLayer # 1 no asbestos detectedmasticoff-whiteLayer # 2

Miscellaneous2025-03551- 5820A Asbestos Detected? NoSample # no asbestos detectedpaintwhiteLayer # 1 no asbestos detectedmortargrayLayer # 2 no asbestos detectedblockbrownLayer # 2

Miscellaneous2025-03551- 5920B Asbestos Detected? NoSample # no asbestos detectedpaintwhiteLayer # 1 no asbestos detectedblockbrownLayer # 2 no asbestos detectedmortargrayLayer # 2

Miscellaneous2025-03551- 6020C Asbestos Detected? NoSample # no asbestos detectedpaintwhiteLayer # 1 no asbestos detectedmortargrayLayer # 2 no asbestos detectedblockbrownLayer # 2

* 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 31

PLM Analysis Details Job Number: 202503551 21-825047-0

2025-03551- 11A 4/7/2025Lab Number Sample Sampled:

VTLAnalyzed 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 %

2025-03551- 21B 4/7/2025Lab Number Sample Sampled:

VTLAnalyzed 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 %

2025-03551- 31C 4/7/2025Lab Number Sample Sampled:

VTLAnalyzed 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 31

2025-03551- 42A 4/7/2025Lab Number Sample Sampled:

VTLAnalyzed 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 %

2025-03551- 52B 4/7/2025Lab Number Sample Sampled:

VTLAnalyzed 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 %

2025-03551- 62C 4/7/2025Lab Number Sample Sampled:

VTLAnalyzed 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

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 31

2025-03551- 73A 4/7/2025Lab Number Sample Sampled:

VTLAnalyzed By 4/8/2025

Homogeneous

Miscellaneous

No

Non-fibrous SolidOKAn?

3# Layers NoAsbestos Detected?

Apparent Smp Type none Fiber Identification:

Sample Analytical Note

Procedure: tweased apart using forceps. Procedure: dissolution of cementitious components using acid. 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 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 59 n.d. - - - - -block brown 1

3 40 n.d. - - - - -mortar gray 1

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

2025-03551- 83B 4/7/2025Lab Number Sample Sampled:

VTLAnalyzed By 4/8/2025

Homogeneous

Miscellaneous

No

Non-fibrous SolidOKAn?

3# Layers NoAsbestos Detected?

Apparent Smp Type none Fiber Identification:

Sample Analytical Note

Procedure: tweased apart using forceps. Procedure: dissolution of cementitious components using acid. 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

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 59 n.d. - - - - -block brown 1

3 40 n.d. - - - - -mortar 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 31

2025-03551- 93C 4/7/2025Lab Number Sample Sampled:

VTLAnalyzed By 4/8/2025

Homogeneous

Miscellaneous

No

Non-fibrous SolidOKAn?

3# Layers NoAsbestos Detected?

Apparent Smp Type none Fiber Identification:

Sample Analytical Note

Procedure: tweased apart using forceps. Procedure: dissolution of cementitious components using acid. 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

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 59 n.d. - - - - -block brown 1

3 40 n.d. - - - - -mortar gray 1

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

2025-03551- 104A 4/7/2025Lab Number Sample Sampled:

VTLAnalyzed By 4/8/2025

Homogeneous

Adhesive/caulk

No

Non-fibrous SolidOKAn?

2# Layers YesAsbestos Detected?

Apparent Smp Type chrysotile asbestos cellulose fiberFiber 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

1.556 1.549chrysotile asbestos cellulose fiber

1.550 vb/g pb/rW A N N L + P

W F N N H + U

Non-Fibrous Components (in approx. decreasing order): bitumen, 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. n.d. - - - -coating off-white 1

2 98 2-5% <=1% - - - -mastic black 1

100Total % 2-5% <=1% - - - -Overall %

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 31

2025-03551- 114B 4/7/2025Lab Number Sample Sampled:

VTLAnalyzed By 4/8/2025

Homogeneous

Roofing

No

Fibrous SolidOKAn?

2# Layers…