A5_Asbestos and Lead Paint Inspection Report.pdf

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TETRA TECH

7100 Commercial Avenue Suite 4, Billings, MT 59101

Tel +1. 406.248.9161 | Fax +1. 406.248.9282 | tetratech.com

October 10, 2024

Mr. , Page IMEG Joint Venture, LLC 1100 Louisiana Street, Ste 1 Houston, Texas 77002-5246

Delivered via email @ .com

SUBJECT: Asbestos and Lead-Based Paint Inspection Report Project No. NZAS 10-0007 Dorm 742 Malmstrom Airforce Base Malmstrom AFB, Great Falls, Montana Tetra Tech Project No. 117-743546-24001

Dear Mr. :

From June 10, 2024, through June 12, 2024, Tetra Tech, Inc. (Tetra Tech) conducted an asbestos and lead-based paint (LBP) inspection at the above referenced site. Based on correspondence with you before the commencement of the project, Tetra Tech was instructed to conduct an inspection for suspect asbestos-containing materials (ACM) and LBP for future renovation purposes. Details of our inspection are provided below.

ASBESTOS INSPECTION

The asbestos inspection was conducted in accordance with the Administrative Rules of Montana 17.74.354, using the currently recognized standard protocol developed under the National Emission Standards for Hazardous Air Pollutants (NESHAP) and the Asbestos Hazard Emergency Response Act (AHERA), as administered by the State of Montana Department of Environmental Quality (MDEQ)

Messrs. Greg Brownell and Cole Menna of Tetra Tech, MDEQ Accredited Asbestos Inspectors, collected samples of suspect ACM. Their MDEQ Inspector Accreditations are in Attachment A.

The bulk samples were shipped, along with completed chain-of-custody (COC) documentation, to Crisp Analytical of Carrollton, Texas for the analysis of asbestos fibers by polarized light microscopy (PLM) using U.S. Environmental Protection Agency (EPA) Methods described in 40 CFR Part 763 Appendix E Subpart E (Interim and EPA 600/R-93 / 116 (Improved). A copy of the laboratory analytical report and COC is contained in Attachment B.

A summary of the ACMs identified to contain greater than 1% asbestos is provided in Table 1. Approximate sample collection locations are in Figures 1 through 3 and approximate ACM locations are in Figures 4 through 6.

Table 1. Summary of Materials Containing 1% or Less Asbestos

HA Number Material Description and Location Percent Asbestos

742-F6.1 Palm tree patterned carpet and associated black and tan mastics located in Rooms 128, 134, 228, and 328

Carpet: ND Mastics: 0.50% Chrysotile1

Asbestos and Lead-Based Paint Inspection Report Project No. NZAS 10-0007 Dormitory 742

Malmstrom Airforce Base Malmstrom AFB, Great Falls, Montana

2 October 10, 2024

HA Number Material Description and Location Percent Asbestos

742-F7.2 White with black specks pattern sheet vinyl flooring and associated tan mastics with gray leveling compound located in Rooms 140, 225, 240, 325, and 340

SVF: ND

Mastic: ND

Leveler: 0.25% Chrysotile1

HA = Homogeneous Area Number, ND = Non-Detect, SVF = Sheet Vinyl Flooring, and 1 = HA further analyzed by PLM Point Count, Based on the asbestos concentration associated with the analysis of the material identified in Table 2, it is not regulated by the EPA or MDEQ. However, Occupational Safety and Health Administration (OSHA) training and worker protection regulations would apply for any disturbance activities associated with this material.

Accordingly, Tetra Tech recommends that individuals engaging in the disturbance or removal of this material utilize “asbestos-safe” work practices as specified within 29 CFR 1926.1101. As stipulated under 29 CFR 1926.1101, work practice requirements and prohibitions that must be observed regardless of the exposure levels and the percentage of asbestos in the installed construction materials include, but are not necessarily limited to:

29 CFR 1926.1101(g)(1)(ii), which requires: wet methods, or wetting agents, to control employee exposures during asbestos handling, mixing, removal, cutting, application, and cleanup, except where employers demonstrate that the use of wet methods is infeasible due to, for example, the creation of electrical hazards, equipment malfunction, and, in roofing, except as provided in paragraph (g)(8)(ii) of this section;

29 CFR 1926.1101(g)(1)(iii), which requires: prompt clean-up and disposal of wastes and debris contaminated with asbestos in leak-tight containers except in roofing operations, where the procedures specified in paragraph (g)(8)(ii)3 of this section apply;

29 CFR 1926.1101(g)(3)(i), which prohibits: high-speed abrasive disc saws that are not equipped with point-of-cut ventilator or enclosures with HEPA filtered exhaust air;

29 CFR 1926.1101(g)(3)(ii), which prohibits: compressed air used to remove asbestos, or materials containing asbestos, unless the compressed air is used in conjunction with an enclosed ventilation system designed to capture the dust cloud created by the compressed air; and

29 CFR 1926.1101(g)(3)(iv), which prohibits: employee rotation as a means of reducing employee exposure to asbestos.

After completing asbestos abatement, a visual inspection and asbestos air clearance should be conducted.

The following materials sampled from the site were suspected to contain asbestos but were found not to contain asbestos by laboratory analysis:

12-inch by 12-inch beige with white and brown speck pattern vinyl floor tile and associated tan mastic located in Room 136 (742-F1.1A, B, C) Tan and white terrazzo shower flooring located in Rooms 101E-109E, 113E-120E, 201E-209E, 213E- 220E, 301E-309E and 313E-320E (742-F4.1A, B, C) Blue carpet and associated tan mastic located in Rooms 101-108, 113-120, 123, 137, 201-208, 213-220, 223, 226, 301-307, 313-320, 323, and 326 (742-F6.2A, B, C) 18-inch by 18-inch black and white carpet squares and associated tan mastic located in Room 308 (742-F6.3A, B, C)

Malmstrom Airforce Base Malmstrom AFB, Great Falls, Montana

3 October 10, 2024

Gray with white and blue speck pattern sheet vinyl flooring and associated tan mastic located in Rooms 101C/D, 102C/D, 107C/D, 108C/D, 1131C/D, 114C/D, 118C/D-120C/D, 124, 133, 201C/D, 202C/D, 207C/D, 208C/D, 213C/D, 214C/D, 218C/D-220C/D, 224, 233, 301C/D, 302C/D, 307C/D, 308C/D, 313C/D, 314C/D, 318C/D-320C/D, 324, and 333 (742-F7.1A, B, C) Blue rubber stair tread and associated tan mastic located in Rooms 140, 240, and 340 (742-F9.1A, B, C) Black built-up tar with gravel ballast roof system located throughout the roof field (742-M1.1A, B, C) White painted smooth wallboard system located in Rooms 101-108, 113-120, 123, 137, 201-208, 213- 220, 223, 226, 301-307, 313-320, 323, and 326 (742-M3.1A, B, C, D, E, F, G) 12-inch by 12-inch with pinholes suspended ceiling panels located in Rooms 123B, 128, 134, 223B, 228, 323B, and 328 (742-M5.1A, B, C) White caulking associated with interior windows located throughout the building (742-M8.1A, B, C) Gray sink undercoating located in Rooms 101D, 102D, 107D, 108D, 113D, 114D, 118D, 119D, 120D, 201D, 202D, 207D, 208D, 213D, 214D, 218D, 219D, 220D, 301D, 302D, 307D, 308D, 313D, 314D, 318D, 319D, and 320D (742-M10.1A, B, C) 4-inch blue rubber cove base and associated tan mastic located in Rooms 121, 122, 125, 126, 127, 140, 224, 225, 227, 240, 324, 325, 327, and 340 (742-M12.1A, B, C) 4-inch brown rubber cove base and associated tan mastic located in Room 136 (742-M12.2A, B, C) 1-inch by 1-inch brown with white speck pattern ceramic floor tile and associated gray grout located in Rooms 130 and 132 (742-M16.1A, B, C) 4-inch by 4-inch brown ceramic wall tile and associated white grout with tan mastic located in Rooms 130, and 132 (742-M16.2A, B, C) 1-inch by 1-inch beige ceramic floor tile and associated gray grout located in Rooms 101E-109E, 113E- 120E, 201E-209E, 213E-220E, 301E-309E, and 313E-320E (742-M16.3A, B, C) 4-inch by 4-inch beige ceramic wall tile and associated gray grout located in rooms 101E-109E, 113E- 120E, 201E-209E, 213E-220E, 301E-309E, and 313E-320E (742-M16-4A, B, C) Gray concrete slab located throughout (742-M18.1A, B, C) White painted CMU block and associated gray mortar located in Rooms 127, 227, and 327 (742-M22.1A, B, C) Foil-faced fiberglass batt insulation and associated mastic associated with metal air ducting located in Rooms 128, 228, and 328 (742-M32.1A, B, C) Tan painted orange peel texture associated with CMU walls located in Room 128 (742-S1.1A, B, C, D, E, F, G) Tan stucco associated with the interior wall located in end staircases of Rooms 121, 122, 221, 222, 321, and 322 (742-S2.1A, B, C, D, E, F, G) Tan stucco associated with exterior walls located throughout (742-S2.2A, B, C, D, E, F, G) Tan painted orange peel texture wallboard system on walls and ceilings located in Rooms 228 and 328 (742-S3.1A, B, D, E, F, G) Red firestop associated with water lines and electrical conduits located in Rooms 034 and 138 (742- M14.1A, B, C) White foil-faced fiberglass pipe insulation and associated pookie located throughout (742-T3.1A, B, C)

Malmstrom Airforce Base Malmstrom AFB, Great Falls, Montana

4 October 10, 2024

LEAD-BASED PAINT INSPECTION

Mr. Greg Brownell of Tetra Tech, an EPA Accredited Lead Risk Assessor, conducted the LBP inspection. His EPA Lead Risk Assessor Accreditation is presented in Attachment A.

Components tested during this LBP inspection included all accessible interior and exterior painted, stained, or varnished components. Tested painted components were cataloged based on location, specific component type, and substrate material.

EPA and the United States Department of Housing and Urban Development (HUD) define an LBP inspection as a surface-by-surface investigation to determine the presence of LBP. Tetra Tech generally followed the HUD LBP inspection guidelines (HUD, 1995, revised 1997 and 2000) for this inspection1. The EPA and HUD define LBP as any surface coating that contains 1.0 milligram per square centimeter (mg/cm²). The Occupational Safety and Health Administration (OSHA) defines lead in paint as any detectable concentration of lead.

Tetra Tech used field X-ray fluorescence (XRF) methodology to determine the presence or absence of LBP. XRF is identified as the recommended method to determine lead in paint. For this inspection, Tetra Tech personnel utilized the SciAps X-550, Spectrum Analyzer XRF, which automatically calculates measurable amounts of lead in paint by correcting for substrate conditions. The XRF Performance Characteristic Sheets for the XRFs used by Tetra Tech specify the ranges where XRF results are positive, negative, or inconclusive. The Performance Characteristic Sheet for this instrument is presented in Attachment C.

XRF data indicated that LBP is present as defined by the EPA. XRF data also indicated that lead is present in concentrations less than the EPA limit of 1.0 mg/cm² but greater than the XRF analyzer limit of detection of 0.01 mg/cm². A complete listing of the XRF readings collected during this inspection is provided in Attachment D.

A summary of the EPA defined LBP identified during this inspection is provided in Table 2. The approximate locations of the LBP components are presented in Figures 7 and 8.

Table 2. Summary of LBP

Component Description and Location Overall Condition Highest Lead

Concentration (mg/cm2)

Blue painted metal attic access ladder located in Room 325 Good 10.1

Brown ceramic wall tile located in Rooms 130 and 132 Good 5 mg/cm2 = milligrams per centimeter squared Reported concentrations are the highest recorded reading for individual component types Reported LBP components are based on EPA Standards

This building does not meet criteria established by the EPA that would require compliance with The Residential Lead-Based Paint Hazard Reduction Act (Title X), as the building is not continuously occupied by children.

OSHA Lead in Construction Standard states that “negative” readings (i.e., those below the HUD/EPA definition of what constitutes LBP [1.0 mg/cm2]) do not relieve contractors from performing exposure assessments (personal air monitoring) on their employees per the OSHA Lead Standard and should not be interpreted as lead-free. Although reading may indicate “negative”, airborne lead concentrations still may exceed the OSHA Action Level or the OSHA Permissible Exposure Limit (PEL) depending on the work activity.

1 As specified in Housing and Urban Development, Guidelines for the Control of Lead-Based Paint Hazards in Housing, June 1995, revised 1997 and 2000

Malmstrom Airforce Base Malmstrom AFB, Great Falls, Montana

5 October 10, 2024

OSHA has regulations pertaining to the disturbance of paint with any concentration of lead (29 CFR 1926.62).

OSHA requires that safe work practices be utilized to reduce exposure to harmful levels of lead, regardless of the work being performed. Safe work practices may include the use of PPE (respiratory protector, disposable coveralls, and eye protection), initial exposure assessment, and the use of wet methods. Tetra Tech recommends that the removal involving any painted surfaces be conducted by a contractor who has received a minimum of OSHA Lead in the Construction Training (commonly referred to as “OSHA Lead Awareness Training”).

LIMITATIONS

Our opinions are intended exclusively for use by Page IMEG Joint Venture, LLC and Malmstrom Airforce Base. The scope of services performed by Tetra Tech may not be appropriate to satisfy the needs of other users, and any use or re-use of this document, or the findings presented herein is prohibited and at the sole risk of the user. No additions or deletions are permitted without the express written consent of Tetra Tech. Furthermore, the opinions presented herein are limited by the requested scope of services and the site conditions existing at the time of our investigation. Therefore, our opinions and recommendations may not apply to future site conditions which we have not had the opportunity to evaluate.

It has been a pleasure assisting you with this project. If you have any questions or need additional information, please contact me in our Tetra Tech Billings, Montana office at (406) 248-9161.

Respectfully submitted, Tetra Tech, Inc.

Roger W. Herman, Jr.

Roger W. Herman, Jr.

Asbestos, Lead & IH Services Manager

Figures Attachment A – MDEQ Inspector and Lead Risk Assessor Accreditations Attachment B – Laboratory Analytical Report and COC Attachment C – XRF Performance Characteristics Sheet Attachment D – XRF Readings I:\N-S\Page IMEG Joint Venture, LLC\117-743546-24001 - MAFB Dorms 735 742 HAZMAT\05-Deliverables\Final\Malmstrom Airforce Base Dorm 742-ACM-LBP Inspection Report.docx

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Pr oje ct No

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ATTACHMENT A

MDEQ Inspector and EPA Lead Risk Assessor Accreditations ha s m et th e re qu ire m en ts o f M on ta na

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ATTACHMENT B

Laboratory Analytical Report and COC

Customer Project:

Reference #: Date: 06/27/24

Analysis and Method

Discussion

Qualifications

Crisp Analytical, L.L.C.

1929 Old Denton Road Carrollton, TX 75006 Phone 972-242-2754 Fax 972-242-2798

CA Labs, L.L.C.

12232 Industriplex, Suite 32 Baton Rouge, LA 70809 Phone 225-751-5632 Fax 225-751-5634

Materials Characterization - Bulk Asbestos Analysis Laboratory Analysis Report - Polarized Light

Tetra Tech, Inc.

7100 Commercial Ave Suite 4 Billings, Montana 59101

742 Dorm Renovation Asbestos Inspectio

CAL24064852AS

Summary of polarized light microscopy (PLM / Stereomicroscopy bulk asbestos analysis) using the methods described in 40CFR Part 763 Appendix E to Subpart E (Interim and EPA 600 / R-93 / 116 (Improved). The sample is first viewed with the aid of a stereomicroscope. Numerous liquid slide preparations are created for analysis under the polarized microscope where identifications and quantifications are preformed. Calibrated liquid refractive oils are used as liquid mouting medium. These oils are used for identification (dispersion staining). A calibrated visual estimation is reported, should any asbestiform mineral be present. Other techniques such as acid washing are used in conjugation with refractive oils for detection of smaller quantities of asbestos. All asbestos percentages are based on calibrated visual estimation traceable to NIST standards for regulated asbestos. Traceability to measurement and calibration is achieved by using known amounts and types of asbestos from standards where analyst and laboratory accuracy are measured. As little as 0.001% asbestos can be detected in favorable samples, while detection in unfavorable samples may approach the detection limit of 0.50% (well above the laboratory definition of trace).

Vermiculite containing samples may contain trace amounts of actinolite/tremolite. When not detected by PLM, these samples should be analyzed using TEM methods and / or water separation techniques. Suspected actinolite/vermiculite presence will be indicated through the sample comment section of this report.

Fibrous talc containing samples may contain a regulated asbestos fiber known as anthophyllite. Under certain conditions the same fiber may actually contain both talc and anthophyllite (a phenomenon called intergrowth). Again, TEM detection methods are recommended. CA Labs PLM report comments will denote suspected amounts of asbestiform anthophyllite with talc, where further analysis is recommended.

Some samples (floor tiles, surfacings, etc.) may contain fibers too small to be detectable by PLM analysis and should be analyzed by TEM bulk protocols.

A "trace asbestos" will be reported if the analyst observes far less than 1% asbestos. CA Labs defines "trace asbestos" as a few fibers detected by the analyst in several preparations and will indicate as such under these circumstances.

Since allowable variation in quantification of samples close to 1% is high, <1% may be reported. Such results are ideal for point counting, and the technique is mandatory for friable samples (NESHAP, Nov. 1990 and clarification letter 8 May 1991) under 1% percent asbestos or "trace asbestos".

In order to make all initial PLM reports issued from CA Labs NESHAP compliant, all <1% asbestos results (except floor tiles) will be point counted at no additional charge.

CA Labs is accredited by the National Voluntary Accreditation Program (NVLAP) for selected test methods for airborne fiber analysis (TEM), and for bulk asbestos fiber analysis (PLM). CA Labs is also accredited by AIHA LAP, LLC. in the PLM asbestos field of testing for Industrial Hygiene. All analysts have completed college courses or hold a degree in a natural science (geology, biology, or environmental science). Recognition by a state professional board in one these disciplines is preferred, but not required. Extensive in-house training programs are used to augment the educational background of the analyst. The Laboratory Director and Quality Manager have received supplemental McCrone Research training for asbestos identification. Analysis performed at Crisp Analytical Labs, LLC 1929 Old Denton Road Carrollton, TX 75006

Dallas NVLAP Lab Code 200349-0 TEM/PLM TDSHS 30-0235 AIHA LAP, LLC Laboratory #102929

Labs

A

C

/data/wordandspreadsheets/templates/asbestos/PLMReport.xls (Revision 6 10/30/2023) Page 1 of 30

Customer Project: 742 Dorm Renovation Asbestos Inspection CA Labs Project #: CAL24064852AS tan and black mastic gray leveling compound with debris

Glossary of abbreviations (non-asbestos fibers and non-fibrous minerals):

Crisp Analytical, L.L.C.

1929 Old Denton Road Carrollton, TX 75006 Phone 972-242-2754 Fax 972-242-2798

CA Labs, L.L.C.

12232 Industriplex, Suite 32 Baton Rouge, LA 70809 Phone 225-751-5632 Fax 225-751-5634

Overview of Project Sample Material Containing Asbestos

Laboratory Sample ID

Sample # Layer # Analysts Physical Description of Subsample

Asbestos type / calibrated visual estimate percent

List of Affected Building Material

Types

<1% Chrysotile

52538 742-F6.1C F6.1C-2 tan and black mastic <1% Chrysotile

52537 742-F6.1B F6.1B-2 tan and black mastic

<1% Chrysotile

52550 742-F7.2C F7.2C-3 gray leveling compound with debris <1% Chrysotile

52549 742-F7.2B F7.2B-3 gray leveling compound with debris

Dallas NVLAP Lab Code 200349-0 TEM/PLM TDSHS 30-0235

AIHA LAP, LLC Laboratory #102929 ca - carbonate gypsum - gypsum bi - binder or - organic ma - matrix mi - mica ve - vermiculite ot - other pe - perlite qu - quartz fg - fiberglass mw - mineral wool wo - wollastinite ta - talc sy - synthetic ce - cellulose br - brucite ka - kaolin (clay) pa - palygorskite (clay)

This report relates to the items tested as received. This report is not to be used by the customer to claim product certification, approval or endorsement by NVLAP, NIST, AIHA LAP, LLC, or any other agency of the federal government. This report may not be reproduced except in full without written permission from CA Labs. These results are submitted pursuant to CA Labs' current terms and sale, condition of sale, including the company's standard warranty and limitations of liability provisions and no responsibility or liability is assumed for the manner in which the results are used or interpreted.

Unless notified in writing to return the samples covered by this report, CA Labs will store the samples for a period of ninety (90) days before discarding. A shipping or handling fee may be assessed for the return of any samples.

/data/wordandspreadsheets/templates/asbestos/PLMReport.xls (Revision 6 10/30/2023) Page 2 of 30

Customer Info: Attn: Customer Project:

Date:

Phone # Fax #

Robert Olivarez Senior Analyst

Analyst Analyst Julio Robles

Crisp Analytical, L.L.C.

1929 Old Denton Road Carrollton, TX 75006 Phone 972-242-2754 Fax 972-242-2798

CA Labs, L.L.C.

12232 Industriplex, Suite 32 Baton Rouge, LA 70809 Phone 225-751-5632 Fax 225-751-5634

Polarized Light Asbestiform Materials Characterization

CA Labs Project #:

Tetra Tech, Inc. 742 Dorm Renovation

Asbestos Inspection

CAL24064852AS

7100 Commercial Ave Suite 4 Billings, Montana 59101 Turnaround Time: 6/27/2024

5 Days Samples Rec'd: 6/20/24 10:30AM 406-248-9161 Date Of Sampling: 6/12/2024 406-248-9282 Purchase Order #:

Laboratory Sample ID

Sample # Com ment

Layer

Analysts Physical Description of Subsample

Homo-geneo us (Y/N)

Asbestos type / calibrated visual estimate percent

Non-asbestos fiber type / percent

Non-fibrous type / percent

52530 742-F1.1A F1.1A-

1 off-white floor tile y None Detected 100% qu,ca

52530 F1.1A-

2 tan mastic y None Detected 100% gy,bi

52531 742-F1.1B F1.1B-

1 off-white floor tile y None Detected 100% qu,ca

52531 F1.1B-

2 tan mastic y None Detected 100% gy,bi

52532 742-F1.1C F1.1C-

100% gy,bi off-white floor tile y None Detected

F4.1A-

100% qu,ca

52532 F1.1C-

2 tan mastic with debris n None Detected

100% qu,ca

Dallas NVLAP Lab Code 200349-0 TEM/PLM TDSHS 30-0235

AIHA LAP, LLC Laboratory #102929 Analysis Method: Interim (40CFR Part 763 Appendix E to Subpart E) / Improved (EPA-600 / R-93/116). All samples received in good condition unless noted.

Preparation Method: HCL acid washing for carbonate based samples, chemical reduction for organically bound components, oil immersion for identification of asbestos types by dispersion attaining / becke line method.

tan and white terrazzo tile y None Detected52533 742-F4.1A

Approved Signatories:

Justin Cox Jose Matute Technical Manager ca - carbonate gy - gypsum bi - binder or - organic ma - matrix mi - mica ve - vermiculite ot - other pe - perlite qu - quartz fg - fiberglass mw - mineral wool wo - wollastonite ta - talc sy - synthetic ce - cellulose br - brucite ka - kaolin (clay) pa - palygorskite (clay)

Analyst Tanner Rasmussen

1. Fire Damage significant fiber damage - reported percentages reflect unaltered fibers

2. Fire Damage no significant fiber damages effecting fibrous percentages

3. Actinolite in association with Vermiculite

4. Layer not analyzed - attached to previous positive layer and contamination is suspected

5. Not enough sample to analyze

6. Anthophyllite in association with Fibrous Talc

7. Contamination suspected from other building materials

8. Favorable scenario for water separation on vermiculite for possible analysis by another method

9. < 1% Result point counted positive

10. TEM analysis suggested

/data/wordandspreadsheets/templates/asbestos/PLMReport.xls (Revision 6 10/30/2023) Page 3 of 30

Phone # Fax #

Robert Olivarez Senior Analyst

Analyst Analyst Julio Robles

Crisp Analytical, L.L.C.

1929 Old Denton Road Carrollton, TX 75006 Phone 972-242-2754 Fax 972-242-2798

CA Labs, L.L.C.

12232 Industriplex, Suite 32 Baton Rouge, LA 70809 Phone 225-751-5632 Fax 225-751-5634

Polarized Light Asbestiform Materials Characterization

CA Labs Project #:

Tetra Tech, Inc. 742 Dorm Renovation

Asbestos Inspection

CAL24064852AS

7100 Commercial Ave Suite 4 Billings, Montana 59101 Turnaround Time: 6/27/2024

5 Days Samples Rec'd: 6/20/24 10:30AM 406-248-9161 Date Of Sampling: 6/12/2024 406-248-9282 Purchase Order #:

Laboratory Sample ID

Sample # Com ment

Layer

Analysts Physical Description of Subsample

Homo-geneo us (Y/N)

Asbestos type / calibrated visual estimate percent

Non-asbestos fiber type / percent

Non-fibrous type / percent

52534 742-F4.1B F4.1B-

1 tan and white terrazzo tile y None Detected 100% qu,ca

52535 742-F4.1C F4.1C-

1 tan and white terrazzo tile y None Detected 100% qu,ca

52536 742-F6.1A F6.1A-

1 multi-colored carpeting y None Detected 100% sy

52536 10 F6.1A-

2 tan mastic with debris n None Detected 100% gy,bi,ca

52537 742-F6.1B F6.1B-

100% gy,bi multi-colored carpeting y None Detected 100% sy

F6.1C-

52537 F6.1B-

2 tan and black mastic n <1% Chrysotile

Dallas NVLAP Lab Code 200349-0 TEM/PLM TDSHS 30-0235

AIHA LAP, LLC Laboratory #102929 Analysis Method: Interim (40CFR Part 763 Appendix E to Subpart E) / Improved (EPA-600 / R-93/116). All samples received in good condition unless noted.

Preparation Method: HCL acid washing for carbonate based samples, chemical reduction for organically bound components, oil immersion for identification of asbestos types by dispersion attaining / becke line method.

multi-colored carpeting y None Detected 100% sy52538 742-F6.1C

Approved Signatories:

Justin Cox Jose Matute Technical Manager ca - carbonate gy - gypsum bi - binder or - organic ma - matrix mi - mica ve - vermiculite ot - other pe - perlite qu - quartz fg - fiberglass mw - mineral wool wo - wollastonite ta - talc sy - synthetic ce - cellulose br - brucite ka - kaolin (clay) pa - palygorskite (clay)

Analyst Tanner Rasmussen

1. Fire Damage significant fiber damage - reported percentages reflect unaltered fibers

2. Fire Damage no significant fiber damages effecting fibrous percentages

3. Actinolite in association with Vermiculite

4. Layer not analyzed - attached to previous positive layer and contamination is suspected

5. Not enough sample to analyze

6. Anthophyllite in association with Fibrous Talc

7. Contamination suspected from other building materials

8. Favorable scenario for water separation on vermiculite for possible analysis by another method

9. < 1% Result point counted positive

/data/wordandspreadsheets/templates/asbestos/PLMReport.xls (Revision 6 10/30/2023) Page 4 of 30

Phone # Fax #

Robert Olivarez Senior Analyst

Analyst Analyst Julio Robles

Crisp Analytical, L.L.C.

1929 Old Denton Road Carrollton, TX 75006 Phone 972-242-2754 Fax 972-242-2798

CA Labs, L.L.C.

12232 Industriplex, Suite 32 Baton Rouge, LA 70809 Phone 225-751-5632 Fax 225-751-5634

Polarized Light Asbestiform Materials Characterization

CA Labs Project #:

Tetra Tech, Inc. 742 Dorm Renovation

Asbestos Inspection

CAL24064852AS

7100 Commercial Ave Suite 4 Billings, Montana 59101 Turnaround Time: 6/27/2024

5 Days Samples Rec'd: 6/20/24 10:30AM 406-248-9161 Date Of Sampling: 6/12/2024 406-248-9282 Purchase Order #:

Laboratory Sample ID

Sample # Com ment

Layer

Analysts Physical Description of Subsample

Homo-geneo us (Y/N)

Asbestos type / calibrated visual estimate percent

Non-asbestos fiber type / percent

Non-fibrous type / percent

52538 F6.1C-

2 tan and black mastic n <1% Chrysotile 100% gy,bi

52539 742-F6.2A F6.2A-

1 blue carpeting y None Detected 100% sy

52539 F6.2A-

2 tan mastic y None Detected 100% gy,bi

52540 742-F6.2B F6.2B-

1 blue carpeting y None Detected 100% sy

52540 F6.2B-

100% sy tan mastic y None Detected

F6.2C-

100% gy,bi

52541 742-F6.2C F6.2C-

1 blue carpeting y None Detected

100% gy,bi

Dallas NVLAP Lab Code 200349-0 TEM/PLM TDSHS 30-0235

AIHA LAP, LLC Laboratory #102929 Analysis Method: Interim (40CFR Part 763 Appendix E to Subpart E) / Improved (EPA-600 / R-93/116). All samples received in good condition unless noted.

Preparation Method: HCL acid washing for carbonate based samples, chemical reduction for organically bound components, oil immersion for identification of asbestos types by dispersion attaining / becke line method.

tan mastic y None Detected52541

Approved Signatories:

Justin Cox Jose Matute Technical Manager ca - carbonate gy - gypsum bi - binder or - organic ma - matrix mi - mica ve - vermiculite ot - other pe - perlite qu - quartz fg - fiberglass mw - mineral wool wo - wollastonite ta - talc sy - synthetic ce - cellulose br - brucite ka - kaolin (clay) pa - palygorskite (clay)

Analyst Tanner Rasmussen

1. Fire Damage significant fiber damage - reported percentages reflect unaltered fibers

2. Fire Damage no significant fiber damages effecting fibrous percentages

3. Actinolite in association with Vermiculite

4. Layer not analyzed - attached to previous positive layer and contamination is suspected

5. Not enough sample to analyze

6. Anthophyllite in association with Fibrous Talc

7. Contamination suspected from other building materials

8. Favorable scenario for water separation on vermiculite for possible analysis by another method

9. < 1% Result point counted positive

/data/wordandspreadsheets/templates/asbestos/PLMReport.xls (Revision 6 10/30/2023) Page 5 of 30

Phone # Fax #

Robert Olivarez Senior Analyst

Analyst Analyst Julio Robles

Crisp Analytical, L.L.C.

1929 Old Denton Road Carrollton, TX 75006 Phone 972-242-2754 Fax 972-242-2798

CA Labs, L.L.C.

12232 Industriplex, Suite 32 Baton Rouge, LA 70809 Phone 225-751-5632 Fax 225-751-5634

Polarized Light Asbestiform Materials Characterization

CA Labs Project #:

Tetra Tech, Inc. 742 Dorm Renovation

Asbestos Inspection

CAL24064852AS

7100 Commercial Ave Suite 4 Billings, Montana 59101 Turnaround Time: 6/27/2024

5 Days Samples Rec'd: 6/20/24 10:30AM 406-248-9161 Date Of Sampling: 6/12/2024 406-248-9282 Purchase Order #:

Laboratory Sample ID

Sample # Com ment

Layer

Analysts Physical Description of Subsample

Homo-geneo us (Y/N)

Asbestos type / calibrated visual estimate percent

Non-asbestos fiber type / percent

Non-fibrous type / percent

52542 742-F6.3A F6.3A-

1 gray carpeting y None Detected 100% sy

52542 F6.3A-

2 tan and black mastic n None Detected 100% gy,bi

52543 742-F6.3B F6.3B-

1 gray carpeting y None Detected 100% sy

52543 F6.3B-

2 tan and black mastic n None Detected 100% gy,bi

52544 742-F6.3C F6.3C-

100% gy,bi,ca gray carpeting y None Detected 100% sy

F7.1A-

52544 F6.3C-

2 tan mastic with debris n None Detected

80% gy,ma

Dallas NVLAP Lab Code 200349-0 TEM/PLM TDSHS 30-0235

AIHA LAP, LLC Laboratory #102929 Analysis Method: Interim (40CFR Part 763 Appendix E to Subpart E) / Improved (EPA-600 / R-93/116). All samples received in good condition unless noted.

Preparation Method: HCL acid washing for carbonate based samples, chemical reduction for organically bound components, oil immersion for identification of asbestos types by dispersion attaining / becke line method.

gray linoleum y None Detected 15% ce 5% fg52545 742-F7.1A

Approved Signatories:

Justin Cox Jose Matute Technical Manager ca - carbonate gy - gypsum bi - binder or - organic ma - matrix mi - mica ve - vermiculite ot - other pe - perlite qu - quartz fg - fiberglass mw - mineral wool wo - wollastonite ta - talc sy - synthetic ce - cellulose br - brucite ka - kaolin (clay) pa - palygorskite (clay)

Analyst Tanner Rasmussen

1. Fire Damage significant fiber damage - reported percentages reflect unaltered fibers

2. Fire Damage no significant fiber damages effecting fibrous percentages

3. Actinolite in association with Vermiculite

4. Layer not analyzed - attached to previous positive layer and contamination is suspected

5. Not enough sample to analyze

6. Anthophyllite in association with Fibrous Talc

7. Contamination suspected from other building materials

8. Favorable scenario for water separation on vermiculite for possible analysis by another method

9. < 1% Result point counted positive

/data/wordandspreadsheets/templates/asbestos/PLMReport.xls (Revision 6 10/30/2023) Page 6 of 30

Phone # Fax #

Robert Olivarez Senior Analyst

Analyst Analyst Julio Robles

Crisp Analytical, L.L.C.

1929 Old Denton Road Carrollton, TX 75006 Phone 972-242-2754 Fax 972-242-2798

CA Labs, L.L.C.

12232 Industriplex, Suite 32 Baton Rouge, LA 70809 Phone 225-751-5632 Fax 225-751-5634

Polarized Light Asbestiform Materials Characterization

CA Labs Project #:

Tetra Tech, Inc. 742 Dorm Renovation

Asbestos Inspection

CAL24064852AS

7100 Commercial Ave Suite 4 Billings, Montana 59101 Turnaround Time: 6/27/2024

5 Days Samples Rec'd: 6/20/24 10:30AM 406-248-9161 Date Of Sampling: 6/12/2024 406-248-9282 Purchase Order #:

Laboratory Sample ID

Sample # Com ment

Layer

Analysts Physical Description of Subsample

Homo-geneo us (Y/N)

Asbestos type / calibrated visual estimate percent

Non-asbestos fiber type / percent

Non-fibrous type / percent

52545 F7.1A-

2 tan mastic with debris n None Detected 100% gy,bi

52546 742-F7.1B F7.1B-

1 gray linoleum y None Detected 15% ce 5% fg 80% gy,ma

52546 F7.1B-

2 tan mastic y None Detected 100% gy,bi

52547 742-F7.1C F7.1C-

1 gray linoleum y None Detected 15% ce 5% fg 80% gy,ma

52547 F7.1C-

100% qu,ma tan mastic with debris n None Detected

F7.2A-

100% gy,bi

52548 742-F7.2A F7.2A-

1 white rubber floor tile y None Detected

100% gy,bi

Dallas NVLAP Lab Code 200349-0 TEM/PLM TDSHS 30-0235

AIHA LAP, LLC Laboratory #102929 Analysis Method: Interim (40CFR Part 763 Appendix E to Subpart E) / Improved (EPA-600 / R-93/116). All samples received in good condition unless noted.

Preparation Method: HCL acid washing for carbonate based samples, chemical reduction for organically bound components, oil immersion for identification of asbestos types by dispersion attaining / becke line method.

tan mastic y None Detected52548

Approved Signatories:

Justin Cox Jose Matute Technical Manager ca - carbonate gy - gypsum bi - binder or - organic ma - matrix mi - mica ve - vermiculite ot - other pe - perlite qu - quartz fg - fiberglass mw - mineral wool wo - wollastonite ta - talc sy - synthetic ce - cellulose br - brucite ka - kaolin (clay) pa - palygorskite (clay)

Analyst Tanner Rasmussen

1. Fire Damage significant fiber damage - reported percentages reflect unaltered fibers

2. Fire Damage no significant fiber damages effecting fibrous percentages

3. Actinolite in association with Vermiculite

4. Layer not analyzed - attached to previous positive layer and contamination is suspected

5. Not enough sample to analyze

6. Anthophyllite in association with Fibrous Talc

7. Contamination suspected from other building materials

8. Favorable scenario for water separation on vermiculite for possible analysis by another method

9. < 1% Result point counted positive

/data/wordandspreadsheets/templates/asbestos/PLMReport.xls (Revision 6 10/30/2023) Page 7 of 30

Phone # Fax #

Robert Olivarez Senior Analyst

Analyst Analyst Julio Robles

Crisp Analytical, L.L.C.

1929 Old Denton Road Carrollton, TX 75006 Phone 972-242-2754 Fax 972-242-2798

CA Labs, L.L.C.

12232 Industriplex, Suite 32 Baton Rouge, LA 70809 Phone 225-751-5632 Fax 225-751-5634

Polarized Light Asbestiform Materials Characterization

CA Labs Project #:

Tetra Tech, Inc. 742 Dorm Renovation

Asbestos Inspection

CAL24064852AS

7100 Commercial Ave Suite 4 Billings, Montana 59101 Turnaround Time: 6/27/2024

5 Days Samples Rec'd: 6/20/24 10:30AM 406-248-9161 Date Of Sampling: 6/12/2024 406-248-9282 Purchase Order #:

Laboratory Sample ID

Sample # Com ment

Layer

Analysts Physical Description of Subsample

Homo-geneo us (Y/N)

Asbestos type / calibrated visual estimate percent

Non-asbestos fiber type / percent

Non-fibrous type / percent

52548 F7.2A-

3 gray leveling compound y None Detected 100% qu,ca

52549 742-F7.2B F7.2B-

1 white rubber floor tile y None Detected 100% qu,ma

52549 F7.2B-

2 tan mastic y None Detected 100% gy,bi

52549 F7.2B-gray leveling compound with debris n <1% Chrysotile

100% qu,bi,ca

52550 742-F7.2C F7.2C-

100% gy,bi white rubber floor tile y None Detected

F7.2C-

100% qu,ma

52550 F7.2C-

2 tan mastic y None Detected

100% qu,bi,ca

Dallas NVLAP Lab Code 200349-0 TEM/PLM TDSHS 30-0235

AIHA LAP, LLC Laboratory #102929 Analysis Method: Interim (40CFR Part 763 Appendix E to Subpart E) / Improved (EPA-600 / R-93/116). All samples received in good condition unless noted.

Preparation Method: HCL acid washing for carbonate based samples, chemical reduction for organically bound components, oil immersion for identification of asbestos types by dispersion attaining / becke line method.

gray leveling compound with debris n <1% Chrysotile52550

Approved Signatories:

Justin Cox Jose Matute Technical Manager ca - carbonate gy - gypsum bi - binder or - organic ma - matrix mi - mica ve - vermiculite ot - other pe - perlite qu - quartz fg - fiberglass mw - mineral wool wo - wollastonite ta - talc sy - synthetic ce - cellulose br - brucite ka - kaolin (clay) pa - palygorskite (clay)

Analyst Tanner Rasmussen

1. Fire Damage significant fiber damage - reported percentages reflect unaltered fibers

2. Fire Damage no significant fiber damages effecting fibrous percentages

3. Actinolite in association with Vermiculite

4. Layer not analyzed - attached to previous positive layer and contamination is suspected

5. Not enough sample to analyze

6. Anthophyllite in association with Fibrous Talc

7. Contamination suspected from other building materials

8. Favorable scenario for water separation on vermiculite for possible analysis by another method

9. < 1% Result point counted positive

/data/wordandspreadsheets/templates/asbestos/PLMReport.xls (Revision 6 10/30/2023) Page 8 of 30

Phone # Fax #

Robert Olivarez Senior Analyst

Analyst Analyst Julio Robles

Crisp Analytical, L.L.C.

1929 Old Denton Road Carrollton, TX 75006 Phone 972-242-2754 Fax 972-242-2798

CA Labs, L.L.C.

12232 Industriplex, Suite 32 Baton Rouge, LA 70809 Phone 225-751-5632 Fax 225-751-5634

Polarized Light Asbestiform Materials Characterization

CA Labs Project #:

Tetra Tech, Inc. 742 Dorm Renovation

Asbestos Inspection

CAL24064852AS

7100 Commercial Ave Suite 4 Billings, Montana 59101 Turnaround Time: 6/27/2024

5 Days Samples Rec'd: 6/20/24 10:30AM 406-248-9161 Date Of Sampling: 6/12/2024 406-248-9282 Purchase Order #:

Laboratory Sample ID

Sample # Com ment

Layer

Analysts Physical Description of Subsample

Homo-geneo us (Y/N)

Asbestos type / calibrated visual estimate percent

Non-asbestos fiber type / percent

Non-fibrous type / percent

52551 742-F9.1A F9.1A-

1 blue stair tread y None Detected 100% qu,ma

52551 F9.1A-

2 tan mastic y None Detected 100% gy,bi

52552 742-F9.1B F9.1B-

1 blue stair tread y None Detected 100% qu,ma

52552 F9.1B-

2 tan mastic y None Detected 100% gy,bi

52553 742-F9.1C F9.1C-

100% gy,bi blue stair tread y None Detected

M1.1 A-1

100% qu,ma

52553 F9.1C-

2 tan mastic y None Detected

60% qu,bi

Dallas NVLAP Lab Code 200349-0 TEM/PLM TDSHS 30-0235

AIHA LAP, LLC Laboratory #102929 Analysis Method: Interim (40CFR Part 763 Appendix E to Subpart E) / Improved (EPA-600 / R-93/116). All samples received in good condition unless noted.

Preparation Method: HCL acid washing for carbonate based samples, chemical reduction for organically bound components, oil immersion for identification of asbestos types by dispersion attaining / becke line method.

black tar and black felt layers n None Detected 10% ce 30% fg52554 742-M1.1A

Approved Signatories:

Justin Cox Jose Matute Technical Manager ca - carbonate gy - gypsum bi - binder or - organic ma - matrix mi - mica ve - vermiculite ot - other pe - perlite qu - quartz fg - fiberglass mw - mineral wool wo - wollastonite ta - talc sy - synthetic ce - cellulose br - brucite ka - kaolin (clay) pa - palygorskite (clay)

Analyst Tanner Rasmussen

1. Fire Damage significant fiber damage - reported percentages reflect unaltered fibers

2. Fire Damage no significant fiber damages effecting fibrous percentages

3. Actinolite in association with Vermiculite

4. Layer not analyzed - attached to previous positive layer and contamination is suspected

5. Not enough sample to analyze

6. Anthophyllite in association with Fibrous Talc

7. Contamination suspected from other building materials

8. Favorable scenario for water separation on vermiculite for possible analysis by another method

9. < 1% Result point counted positive

/data/wordandspreadsheets/templates/asbestos/PLMReport.xls (Revision 6 10/30/2023) Page 9 of 30

Phone # Fax #

Robert Olivarez Senior Analyst

Analyst Analyst Julio Robles

Crisp Analytical, L.L.C.

1929 Old Denton Road Carrollton, TX 75006 Phone 972-242-2754 Fax 972-242-2798

CA Labs, L.L.C.

12232 Industriplex, Suite 32 Baton Rouge, LA 70809 Phone 225-751-5632 Fax 225-751-5634

Polarized Light Asbestiform Materials Characterization

CA Labs Project #:

Tetra Tech, Inc. 742 Dorm Renovation

Asbestos Inspection

CAL24064852AS

7100 Commercial Ave Suite 4 Billings, Montana 59101 Turnaround Time: 6/27/2024

5 Days Samples Rec'd: 6/20/24 10:30AM 406-248-9161 Date Of Sampling: 6/12/2024 406-248-9282 Purchase Order #:

Laboratory Sample ID

Sample # Com ment

Layer

Analysts Physical Description of Subsample

Homo-geneo us (Y/N)

Asbestos type / calibrated visual estimate percent

Non-asbestos fiber type / percent

Non-fibrous type / percent

52554 M1.1 A-2 yellow insulation y None Detected 100% fg

52555 742-M1.1B M1.1 B-1 black tar and black felt layers n None Detected

10% ce 30% fg 60% qu,bi

52555 M1.1 B-2 yellow insulation y None Detected 100% fg

52556 742-M1.1C M1.1 C-1 black tar and black felt layers n None Detected

10% ce 30% fg 60% qu,bi

52556 M1.1 C-2

100% qu,bi,ca yellow insulation y None Detected 100% fg

M3.1 A-2

52557 742-M3.1A M3.1 A-1 white surfaced white compound n None Detected

100% qu,ca

Dallas NVLAP Lab Code 200349-0 TEM/PLM TDSHS 30-0235

AIHA LAP, LLC Laboratory #102929 Analysis Method: Interim (40CFR Part 763 Appendix E to Subpart E) / Improved (EPA-600 / R-93/116). All samples received in good condition unless noted.

Preparation Method: HCL acid washing for carbonate based samples, chemical reduction for organically bound components, oil immersion for identification of asbestos types by dispersion attaining / becke line method.

off-white compound (beneath tape) y None Detected52557

Approved Signatories:

Justin Cox Jose Matute Technical Manager ca - carbonate gy - gypsum bi - binder or - organic ma - matrix mi - mica ve -…