ESBD_468372_1763566654514_Attachment 9-Asbestos Documents.pdf

Limited Asbestos Survey

Conducted for:

Texas Workforce Commission MoPac Building Renovations 12312 North Mopac Expressway Austin, Travis County, Texas

Prepared for:

Texas Workforce Commission Construction & facilities Management 101 E. 15th Street, Room 116 Austin, Travis County, Texas

Prepared by:

2380 Performance Drive Building C, Suite 150 Richardson, TX 75082 | halff.com

November 2025

AVO 52249.042

2380 Performance Drive, Building C, Suite 150, Richardson, TX 75082 | halff.com

November 5, 2025

AVO 52249.042

Mr. William Briseno, MBA, CTCD, CTCM Project Manager III Texas Workforce Commission Construction & Facilities Management 101 E. 15th Street, Room 116 Austin, TX 78778-0001

Re: Limited Asbestos Survey for the Proposed Renovations at the MoPac Building, addressed 12312 North MoPac Expressway, Austin, Texas

Dear Mr. Briseno:

Halff Associates Inc. (Halff) performed a limited asbestos survey for proposed renovations at the MoPac building. The limited asbestos survey was conducted on October 23, 2025.

According to information provided by Texas Workforce Commission (TWC) personnel, the general scope of work for the proposed renovations of the MoPac building included the renovation of flooring, ceiling tiles, electrical, and lighting. Therefore, suspect building materials that have a potential to be disturbed during the proposed project were sampled as part of this limited survey and included suspended ceiling tiles, carpet flooring and mastic, cove base, and drywall systems.

Because asbestos has historically been a component of a wide variety of building materials, the types of building materials, which may potentially contain asbestos, are termed “suspect ACM.” The actual asbestos content, if any, of suspect ACM can be determined only through proper sampling and analytical procedures performed by qualified asbestos inspector and laboratory.

Additionally, at present in the State of Texas, only materials with an asbestos content greater than 1% (1% or greater in a Public Building) are considered regulated asbestos containing material (RACM).

Mr. Willliam Briseno Texas Workforce Commission

November 5, 2025

Asbestos Survey

Halff is licensed by the Texas Department of State Health Services (DSHS) as an Asbestos Consulting Agency (DSHS License #100386). Halff subcontracted Mr. Lee Thompson (DSHS Asbestos Inspector #60-3660) of DCG Environmental, LLC to assess readily accessible building materials located in the identified areas of proposed renovation activities. A total of twelve bulk samples of suspect building materials were collected from four homogenous areas. Bulk samples of the suspect building materials were placed in individual sample bags labeled with a unique number.

The samples were transported to Omni Environmental, Inc. (Omni) in Round Rock, Texas for analysis. Omni is a successful participant in the Department of Commerce, National Institute of Standards and Technology, National Voluntary Laboratory Accreditation Program (NVLAP, Lab ID# 102061-0). Omni is also licensed by the DSHS as an Asbestos laboratory (DSHS License # 30-0087). The samples were analyzed by Omni using Polarized Light Microscopy (PLM).

The limited asbestos survey identified four homogenous areas and yielded a collection of 12 bulk samples. Based on laboratory analysis, asbestos was not identified in the samples collected from the suspect building materials as part of this survey. The sample locations are illustrated on Figure 1. A summary of homogeneous materials and bulk sample analysis tables, sample location map, chain of custody, laboratory report, photographs, and licenses/certifications are presented as attachments at the end of this report.

This limited asbestos survey was intended to provide bulk sampling for suspect ACM in the area of proposed renovations This survey was not intended to satisfy EPA guidelines in the Asbestos Hazard Emergency Response Act (AHERA) codified in 40 CFR Part 763 but was intended to provide general information concerning the presence of ACM associated with the areas identified in this report. The regulations covering this project may be found in 40 CFR PART 61 Subpart M: National Emission Standards for Hazardous air Pollutants:

Asbestos (NESHAP) and the Texas Department of State Health Services Texas Asbestos Health Protection Rules (TAPHR) 25 TAC 296. Regardless of the thoroughness of an asbestos survey, the possibility exists in which some areas containing asbestos were inaccessible or different from those at specific locations. Suspect materials not sampled should be assumed ACM until tested by laboratory analysis.

Conclusions and Recommendations

Based on data developed during this limited asbestos survey, the following conclusions can be made:

No asbestos was identified in the twelve samples collected from the suspect building materials located in the areas of proposed renovations at the MoPac Building.

Mr. Willliam Briseno Texas Workforce Commission

November 5, 2025

The following recommendations are made based on the results of the limited asbestos survey:

If during any renovation activities, suspect building materials are encountered in areas that were not accessible at the time this survey was performed, samples of these materials should be collected by a DSHS licensed inspector and analyzed by a qualified laboratory.

No asbestos-containing materials were identified during this limited ACM survey. Any previously identified ACM in the building (if applicable) that is not subject to immediate abatement should be monitored for proper maintenance procedures as part of a site-specific O&M Program. Prior to any remodeling, renovation, or demolition activities, proper asbestos abatement procedures developed by a licensed asbestos consultant should be followed for all identified ACM. These procedures include the use of a licensed asbestos contractor and the proper disposal of such materials in a landfill that is authorized to accept asbestos.

The enclosed information documents our process and findings. If you have any questions or require any additional information, please do not hesitate to contact us. We appreciate the opportunity to be of service to TWC.

Sincerely, HALFF ASSOCIATES, INC.

Michael Thiele, P.G.

Senior Geologist Individual Asbestos Consultant No. 105780

Attachments (5)

HOMOGENOUS MATERIALS

AND

SUMMARY OF BULK SAMPLE ANALYSIS AND ASSESSMENT

Halff AVO 52249.042 Page 1

TABLE 1 - HOMOGENOUS MATERIALS

No. Material Description Sample Numbers Location 1 Black Mastic under carpet 01, 02, 03 General Office Area

2 2’x4’ Ceiling Tile, Random Holes and Fissures 04, 05, 06 Throughout Building

3 Black Cove Base/Mastic 07, 08, 09 Throughout Building

4 Drywall, Joint Compound, Texture (orange peel pattern) 10, 11, 12 North Side Walls

Notes: Asbestos was not identified in the above samples collected as part of this survey.

TABLE 2 - SUMMARY OF BULK SAMPLE ANALYSIS AND ASSESSMENT

NOTES:

a CH = Chrysotile; AM = Amosite; CR = Crocidolite; AN = Anthophyllite; TR = Tremolite; AC = Actinolite; NAD = No Asbestos Detected b M = Miscellaneous; S = Surfacing; TSI = Thermal System Insulation c F = Friable; NF = Non-Friable d G = Good; U = Undamaged; D = Damaged; SD = Significantly damaged e H = High; M = Moderate; L = Low NA = Not Applicable

Sample

ID

Number Sample Description Material Location Percentage and Type of

Asbestos Detected a

Estimated Quantity

(SF/LF)

Type of ACM b Friability c

Physical Condition d

Potential for Disturbance e

01 Black Mastic under carpet General Office, southwest side center NAD NA NA NF G L

02 Black Mastic under carpet General Office, south side center NAD NA NA NF G L

03 Black Mastic under carpet General Office, east side center NAD NA NA NF G L

04 2’x4’ Ceiling Tile, Random Holes and Fissures Office 108 NAD NA NA NF G L

05 2’x4’ Ceiling Tile, Random Holes and Fissures General Office, south NAD NA NA NF G L

06 2’x4’ Ceiling Tile, Random Holes and Fissures

Middle Office, southwest side NAD NA NA NF G L

07 Black Cove Base/Mastic General Office at Office 106 NAD NA NA NF G L

08 Black Cove Base/Mastic General Office at Office 107 NAD NA NA NF G L

09 Black Cove Base/Mastic General Office, northeast wall, middle NAD NA NA NF G L

10 Drywall, Joint Compound, Texture (orange peel pattern)

Office 106, southwest wall

NAD – Joint Compound/Texture

NAD – drywall

NA NA NF G L

11 Drywall, Joint Compound, Texture (orange peel pattern)

General Office, northwest wall at

Office 108

NAD – Joint Compound/Texture

NAD – drywall

NA NA NF G L

12 Drywall, Joint Compound, Texture (orange peel pattern)

General Office, northwest wall at

Office 109

NAD – Joint Compound/Texture

NAD – drywall

NA NA NF G L

SAMPLE LOCATION MAP

P ro je ct

N o

.:5

.0

Is su e d

: N o ve m b e r

D ra w n B y:

R

K C h e ck e d B y:

M

T S ca le

N o t to S ca le

Sample Location Map TWC MoPacBuilding 12312 N. MoPac Expy

Austin, Texas

Ex pl an at io n

Sa m pl e

Lo ca ti on

M ap

TW

C

M oP ac B ui ld in g

N

. M oP ac E xp y

A us ti n, T ex as

Fi gu re

Sa m pl e

Lo ca tio n

N o As be st os D et ec te d

XX

LABORATORY REPORT

And

CHAIN OF CUSTODY

SAMPLE SUMMARY REPORT

Client Project Number: HALF102325.01

Client Name: DCG Environmental Inc

Lab Project #: 243198

Client Sample Number

Lab Sample Number

Asbestos Type and % Asbestos Content by Layer

Contact Name: Shelley Hines

Omni Environmental, Inc.

2851 Joe DiMaggio Blvd Suite 10

(512) 258-9114 Round Rock, TX 78665

NVLAP LABCODE 102061-0

TDSHS Lab License 30-0087

9847731 NAD

9847742 NAD

9847753 NAD

9847764 NAD

9847775 NAD

9847786 NAD

9847797 NAD

9847808 NAD

9847819 NAD

98478210 NAD NAD detected in Joint Compound/Texturizer NAD detected in

Drywall 98478311 NAD NAD detected in Joint Compound/Texturizer NAD detected in

Drywall 98478412 NAD NAD detected in Joint Compound/Texturizer NAD detected in

Drywall

This report is only a summary. For complete information on each sample see the Bulk Sample Analysis Report.

Note that NAD means that No Asbestos was Detected in the sample or layer.

DCG Environmental Inc

836 Eastridge Cir

Dear

Please find enclosed the bulk sample analytical results for the following project:

Date Received: 10/23/2025

Date Logged: 10/24/2025

Analysis Completed: 10/24/2025

Please call us if you have any questions regarding this report

Thank you for your business.

Sincerely, Red Oak, TX 75154

BULK SAMPLE ANALYSIS REPORT

Client Project #: HALF102325.01 Lab Project #: 243198

Logged in by: Steve Griffin

Delivery Agency: Hand Delivered

Received By: Steve Griffin

Name/Tracking #: Lee Thompson

Shelley Hines

Ms Hines:

Samples in Project: 12

Steve Griffin, Lab Manager

ANALYTICAL METHOD: EPA Method for the Determination of Asbestos in Bulk Building Materials (EPA 600/R-93/116) and EPA Interim Method for the Determination of Asbestos in Bulk Insulation Samples (EPA 600/M4-82-020).

Percentages are visual estimates based on sample volume. Limit of Detection: <1%. Limit of Quantification: 1%.

Negative results of resinously bound materials such as roofing material or floor tile may be inconclusive. NAD means No Asbestos was Detected in the sample or layer. The term texturizer (where applicable) may include wall texturizing, tape and bed, and/or joint compound. This report relates only to the item tested as received. It may not be used to claim product endorsement by NVLAP, NIST or any agency of the federal government.

This report may not be reproduced, except in full, without the expressed written consent of laboratory management. Subsamples of layers or other inhomogeneities were analyzed separately and their results combined in proportion to the quantity of each layer to obtain quantitative results for the sample as a whole. All samples are stored for 1 month from the original analysis date before being disposed of.

The following procedures were used in sample analysis unless otherwise noted.

October 24, 2025

Omni Environmental, Inc.

2851 Joe DiMaggio Blvd Suite 10

(512) 258-9114 Round Rock, TX 78665

NVLAP LABCODE 102061-0

TDSHS Lab License 30-0087

BULK SAMPLE ANALYSIS REPORT

Anthophyllite %Asbestos Total: Fibrous Total: Non-Fibrous Total: 100NAD

Comments:

Lab Project #: 243198 Client Project #: HALF102325.01

Lab Sample #: 984773

Client Sample #: 1 Analyst: Steve Griffin

Date Analyzed: 10/24/2025

Color: Black Characterization: Homogeneous, Non-Fibrous

SAMPLE LAYER DETAILS

ASBESTOS COMPONENTS NON-FIBROUS COMPONENTSFIBROUS COMPONENTS

Chrysotile Amosite Crocidolite Tremolite Actinolite

Filler/Binder Mastic Tar

Anthophyllite %Asbestos Total: Fibrous Total: Non-Fibrous Total: 100NAD

Comments:

Lab Project #: 243198 Client Project #: HALF102325.01

Lab Sample #: 984774

Client Sample #: 2 Analyst: Steve Griffin

Date Analyzed: 10/24/2025

Color: Black Characterization: Homogeneous, Non-Fibrous

SAMPLE LAYER DETAILS

ASBESTOS COMPONENTS NON-FIBROUS COMPONENTSFIBROUS COMPONENTS

Chrysotile Amosite Crocidolite Tremolite Actinolite

Filler/Binder Mastic Tar

Anthophyllite %Asbestos Total: Fibrous Total: Non-Fibrous Total: 100NAD

Comments:

Lab Project #: 243198 Client Project #: HALF102325.01

Lab Sample #: 984775

Client Sample #: 3 Analyst: Steve Griffin

Date Analyzed: 10/24/2025

Color: Black Characterization: Homogeneous, Non-Fibrous

SAMPLE LAYER DETAILS

ASBESTOS COMPONENTS NON-FIBROUS COMPONENTSFIBROUS COMPONENTS

Chrysotile Amosite Crocidolite Tremolite Actinolite

Filler/Binder Mastic Tar

%%Asbestos Total: Fibrous Total: Non-Fibrous Total:70 30NAD

Comments:

Lab Project #: 243198 Client Project #: HALF102325.01

Lab Sample #: 984776

Client Sample #: 4 Analyst: Steve Griffin

Date Analyzed: 10/24/2025

Color: Gray Characterization: Homogeneous, Fibrous

SAMPLE LAYER DETAILS

ASBESTOS COMPONENTS NON-FIBROUS COMPONENTSFIBROUS COMPONENTS

Chrysotile Amosite Crocidolite Tremolite Actinolite

Filler/Binder%

Cellulose Mineral Wool Paint

Perlite

30 <1

QC'd By: Steve Griffin

Anthophyllite %%Asbestos Total: Fibrous Total: Non-Fibrous Total:70 30NAD

Comments:

Lab Project #: 243198 Client Project #: HALF102325.01

Lab Sample #: 984777

Client Sample #: 5 Analyst: Steve Griffin

Date Analyzed: 10/24/2025

Color: Gray Characterization: Homogeneous, Fibrous

SAMPLE LAYER DETAILS

ASBESTOS COMPONENTS NON-FIBROUS COMPONENTSFIBROUS COMPONENTS

Chrysotile Amosite Crocidolite Tremolite Actinolite

Filler/Binder%

Cellulose Mineral Wool Paint

Perlite

30 <1

QC'd By: Steve Griffin

Anthophyllite %%Asbestos Total: Fibrous Total: Non-Fibrous Total:70 30NAD

Comments:

Lab Project #: 243198 Client Project #: HALF102325.01

Lab Sample #: 984778

Client Sample #: 6 Analyst: Steve Griffin

Date Analyzed: 10/24/2025

Color: Gray Characterization: Homogeneous, Fibrous

SAMPLE LAYER DETAILS

ASBESTOS COMPONENTS NON-FIBROUS COMPONENTSFIBROUS COMPONENTS

Chrysotile Amosite Crocidolite Tremolite Actinolite

Filler/Binder%

Cellulose Mineral Wool Paint

Perlite

30 <1

%Asbestos Total: Fibrous Total: Non-Fibrous Total: 100NAD

Comments:

Lab Project #: 243198 Client Project #: HALF102325.01

Lab Sample #: 984779

Client Sample #: 7 Analyst: Steve Griffin

Date Analyzed: 10/24/2025

Color: Black Characterization: Homogeneous, Non-Fibrous

SAMPLE LAYER DETAILS

ASBESTOS COMPONENTS NON-FIBROUS COMPONENTSFIBROUS COMPONENTS

Chrysotile Amosite Crocidolite Tremolite Actinolite

Filler/Binder Mastic <1

Anthophyllite %Asbestos Total: Fibrous Total: Non-Fibrous Total: 100NAD

Comments:

Lab Project #: 243198 Client Project #: HALF102325.01

Lab Sample #: 984780

Client Sample #: 8 Analyst: Steve Griffin

Date Analyzed: 10/24/2025

Color: Black Characterization: Homogeneous, Non-Fibrous

SAMPLE LAYER DETAILS

ASBESTOS COMPONENTS NON-FIBROUS COMPONENTSFIBROUS COMPONENTS

Chrysotile Amosite Crocidolite Tremolite Actinolite

Filler/Binder Mastic <1

Anthophyllite %Asbestos Total: Fibrous Total: Non-Fibrous Total: 100NAD

Comments:

Lab Project #: 243198 Client Project #: HALF102325.01

Lab Sample #: 984781

Client Sample #: 9 Analyst: Steve Griffin

Date Analyzed: 10/24/2025

Color: Black Characterization: Homogeneous, Non-Fibrous

SAMPLE LAYER DETAILS

ASBESTOS COMPONENTS NON-FIBROUS COMPONENTSFIBROUS COMPONENTS

Chrysotile Amosite Crocidolite Tremolite Actinolite

Filler/Binder Mastic <1

%%Asbestos Total: Fibrous Total: Non-Fibrous Total:40 60NAD

Comments:

Lab Project #: 243198 Client Project #: HALF102325.01

Lab Sample #: 984782

Client Sample #: 10 Analyst: Steve Griffin

Date Analyzed: 10/24/2025

Color: White Characterization: Heterogeneous, Fibrous

SAMPLE LAYER DETAILS

ASBESTOS COMPONENTS NON-FIBROUS COMPONENTSFIBROUS COMPONENTS

Chrysotile Amosite Crocidolite Tremolite Actinolite

Filler/Binder%Cellulose Paint

Layer 1:

Layer 2:

No Asbestos Detected in Joint Compound/Texturizer.

No Asbestos Detected in Drywall.

Anthophyllite %%Asbestos Total: Fibrous Total: Non-Fibrous Total:40 60NAD

Comments:

Lab Project #: 243198 Client Project #: HALF102325.01

Lab Sample #: 984783

Client Sample #: 11 Analyst: Steve Griffin

Date Analyzed: 10/24/2025

Color: White Characterization: Heterogeneous, Fibrous

SAMPLE LAYER DETAILS

ASBESTOS COMPONENTS NON-FIBROUS COMPONENTSFIBROUS COMPONENTS

Chrysotile Amosite Crocidolite Tremolite Actinolite

Filler/Binder%Cellulose Paint

Layer 1:

Layer 2:

No Asbestos Detected in Joint Compound/Texturizer.

No Asbestos Detected in Drywall.

Anthophyllite %%Asbestos Total: Fibrous Total: Non-Fibrous Total:40 60NAD

Comments:

Lab Project #: 243198 Client Project #: HALF102325.01

Lab Sample #: 984784

Client Sample #: 12 Analyst: Steve Griffin

Date Analyzed: 10/24/2025

Color: White Characterization: Heterogeneous, Fibrous

SAMPLE LAYER DETAILS

ASBESTOS COMPONENTS NON-FIBROUS COMPONENTSFIBROUS COMPONENTS

Chrysotile Amosite Crocidolite Tremolite Actinolite

Filler/Binder%Cellulose Paint

Layer 1:

Layer 2:

No Asbestos Detected in Joint Compound/Texturizer.

No Asbestos Detected in Drywall.

PHOTOGRAPHS

MoPac Building Limited Asbestos Survey Texas Workforce Commission Floor Renovations Austin, Travis County, Texas November 2025

Photographer: L. Thompson Page 1 of 1

Photograph 1 – Typical view of the black mastic under carpet, wall cove base, and drywall system in the building. No asbestos was identified in the samples collected from the building materials.

Photograph 2 – Typical view of the 2x4 ceiling tiles in the building. No asbestos was identified in the samples collected from the ceiling tiles.

LICENSES AND CERTIFICATIONS

2380 Performance Drive, Building C, Suite 150, Richardson, TX 75082 | halff.com

Michael Thiele Stamp

Michael Thiele Stamp

Name:

License Type:

License Status:

Expiry Date:

Effective Rank Date:

License Number: 100386 Current Date: 01/10/2025 10:54 AM

HALFF ASSOCIATES INC

Asbestos Consultant Agency

Current

12/28/2026

12/29/2006

Addresses Main Address Address

1201 N BOWSER RD

RICHARDSON , TX

DALLAS

75081

US

Phone Number:

2143466200

Physical Addr Address

1201 N BOWSER RD

RICHARDSON , TX

DALLAS

75081

US

Phone Number:

2143466200

Mailing Address Address

HALFF ASSOCIATES INC

RICHARDSON , TX

DALLAS

75081

US

Phone Number:

2143466242

Asbts Consult. Agency Designated Person

Licensee's Role: Asbestos Consultant Agency

Related Party Role: Asbestos Individual Consultant

Related Party Name License Address

THIELE, MICHAEL O

Asbestos Individual Consultant #105780 Status: Current

Expiration Date: 08/07/2026

RICHARDSON , TX

DALLAS

75081

US

Name:

License Type:

License Status:

Expiry Date:

Effective Rank Date:

License Number: 300087 Current Date: 11/06/2025 05:05 PM

OMNI ENVIRONMENTAL INC

Asbestos Laboratory

Current

06/15/2027

06/16/2005

Addresses Main Address Address

2851 JOE DiMAGGIO BLVD STE 10

ROUND ROCK , TX

WILLIAMSON

78665

US

Phone Number:

5122589114

Physical Addr Address 2851 JOE DiMAGGIO BLVD STE 10

ROUND ROCK , TX

WILLIAMSON

78665

US

Phone Number:

5122589114

Mailing Address Address

OMNI ENVIRONMENTAL INC

ROUND ROCK , TX

WILLIAMSON

78665

US

Phone Number:

5122589114

Asbestos Lab-Responsible Person

Licensee's Role: Asbestos Laboratory

Related Party Role: Responsible Person

Related Party Name License Address

GRIFFIN, STEVE

Status:

Expiration Date:

AUSTIN , TX

TRAVIS

78758

US

11/6/25, 5:05 PM License Details https://vo.ras.dshs.state.tx.us/datamart/detailsPrintTXRAS.do?anchor=restore 1/1

United States Department of Commerce

National Institute of Standards and Technology

Certificate of Accreditation to ISO/IEC 17025:2017 is accredited by the National Voluntary Laboratory Accreditation Program for specific services, listed on the Scope of Accreditation, for:

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).

NVLAP LAB CODE: 102061-0

Omni Environmental, Inc.

Round Rock, TX

Asbestos Fiber Analysis

2025-07-01 through 2026-06-30