Attachment A Asbestos Survey.pdf

Abilene l Lubbock l Granbury PE Firm Registration No. 1151 PG Firm Registration No. 50103 RPLS Firm Registration No. 10011900

Corporate Headquarters 402 Cedar Street Abilene, Texas 79601 T: (325) 698-5560 F: (325) 690-3240 www.e-ht.com

ASBESTOS SURVEY

Dyess Air Force Base Building 9329 815 Rapcon Rd.

Dyess AFB, Texas

Project Number: 8251

August 2024

Prepared for:

7th Contracting Squadron Bldg. 7238, 381 3rd St.

Dyess AFB, Texas 79607

Site Inspection:

Donnie Windland ___________________________________ Individual Asbestos Consultant TDSHS License #: 105844 Exp. 09.10.26

Joshua Alvarez ____________________________________ Asbestos Air Monitoring Technician Project Monitor TDSHS License #: 600047 Exp. 12.04.25

Dyess Air Force Base Building 9329

815 Rapcon Rd.

Dyess AFB, Texas

Table of Contents

EXECUTIVE SUMMARY

1.0 INTRODUCTION

1.1 Client/Facility Location

1.2 Scope of Work

1.3 Regulatory Standards

1.4 Field Methods

1.5 Assessment of Suspect ACBM

1.5.1 Classification of ACBM

1.5.2 Prioritization

1.6 Laboratory Methods

1.7 Response Actions

2.0 SURVEY FINDINGS

2.1 Laboratory Results

3.0 RECOMMENDATIONS

4.0 STANDARDS/LIMITATIONS

Tables:

Table 1, Suspect ACM Summary

Appendix A - Terminology

Abbreviations/Definitions

Appendix B - Survey Documentation

Laboratory Reports

Appendix C - License Documentation

Inspector’s License Documents Laboratory’s License Documents

Bldg. 9329, 815 Rapcon Rd., Dyess AFB, Texas Job No. 8251 Asbestos Survey Page 1 August 2024

EXECUTIVE SUMMARY

Enprotec / Hibbs & Todd, Inc. (eHT) was authorized by Dyess Air Force Base (Dyess AFB) to perform an asbestos survey of Building (Bldg.) 9329, located at 815 Rapcon Road (Rd.), Dyess AFB, Texas. Based on the assessment results, the following suspect asbestos containing materials (ACM) homogeneous areas were identified:

• Cove Base (black) with Mastic (yellow), located throughout;

• Drywall Gypsum Board (DWGB) with Texture (smooth) and Joint Compound, located throughout;

• Suspended Acoustic Tile (SAT) (fissures), located throughout on ceiling; and

• 4x4 Ceramic Floor Tile (red) with Grout, located in bathroom.

The Asbestos Survey was performed on July 29, 2024, by Josh Alvarez, Asbestos Inspector, license number 604150, expiration date 12/04/25. Twelve (12) bulk samples of suspected asbestos containing building materials (ACBMs) were collected and submitted to the laboratory for analysis.

Based on the laboratory results, none of the twelve (12) samples contained one percent (1%) or greater asbestos and therefore these materials are NOT considered ACBMs.

The laboratory reports are presented in Appendix B. A table presenting the laboratory results is presented in the Tables Section.

Enprotec / Hibbs & Todd, Inc. recommends the following actions:

• Any suspect building materials not sampled in this assessment that are encountered during renovation or demolition activities should be sampled and tested for possible asbestos content by qualified personnel prior to continuation of renovation activities.

Asbestos Survey Page 2 August 2024

1.0 INTRODUCTION:

1.1 Client/Facility Location

eHT was authorized by Dyess AFB to perform an asbestos survey of Bldg. 9329, located at 815 Rapcon Rd., Dyess AFB, Texas.

1.2 Scope of Work:

In general, the scope of work included the performance of an asbestos survey on all accessible suspect ACBMs associated with the interior materials that may be disturbed during any renovation or demolition activities. The inspection was performed on July 29, 2024.

1.3 Regulatory Standards:

This study was conducted based on the Final Rules for Asbestos Exposure in General Industry and Construction, issued August 10, 1994. An employer or owner may demonstrate that Presumed Asbestos Containing Material (PACM) (includes thermal system insulation, sprayed-on or troweled-on surfacing material and debris in work areas where such material is present) does not contain asbestos by having an inspection conducted pursuant to the requirements of Asbestos Hazard Emergency Response Act (AHERA) (40 Code of Federal Regulation (CFR) 763, Subpart E). Such tests shall include analysis of a minimum of three

(3) bulk samples of each homogenous area of PACM collected in a randomly distributed manner. The tests, evaluation, and sample collection shall be performed by an accredited inspector or by a Certified Industrial Hygienist (CIH). The employer/building owner may demonstrate that flooring material, including associated mastic and backing, does not contain asbestos, based upon recognized analytical techniques showing that the material is asbestos free (contains <1% of asbestos).

State and Federal regulations require an asbestos survey be performed prior to renovation or demolition of a public or commercial building. Renovation and demolition will disturb building materials and the asbestos materials likely to be disturbed must be removed by a qualified (i.e., certified and licensed) asbestos abatement contractor under monitoring and supervision of a qualified asbestos consultant.

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Federal and State regulations only allow asbestos material to remain in-place during demolition activities under certain circumstances. The circumstances are: 1) a building is declared to be structurally unsound and in danger of collapse; or 2) regulated materials are removed, leaving only certain non-friable materials in-place. Regulated asbestos-containing materials (RACMs) are ACMs that are friable or may become friable during demolition.

Materials that may remain in-place include gaskets, packings, and asphalt roofing materials that are not friable and are not in poor condition (Category 1 Non-Friable ACM), as well as other non-friable materials (Category II Non-Friable ACM) that do not have a high probability of becoming or have not already become crumbled, pulverized, or reduced to powder by forces expected to act on the Material in the course of demolition activities.

According to National Emission Standards for Hazardous Air Pollutants (NESHAP) [40 CFR 61.145(A)(3)], a building may be demolished with friable and non-friable ACMs in-place if the facility is being demolished under an order of a State or Local government agency, issued because the facility is structurally unsound and in danger of imminent collapse. Texas Asbestos Health Protection Rules (TAHPR) similarly stated in 25 Texas Administrative Code (TAC) 296.251(o), “The judgement that a structure is in danger of imminent collapse or that it is unsafe for anyone to enter shall be made by a professional engineer, registered architect, or government official and as such the building would no longer meet the requirements of a public building” [25 TAC 296.21(74)(F)]. Leaving the ACMs requires the use of wet demolition techniques and proper disposal of all the resulting debris as asbestos waste.

1.4 Field Methods:

Prior to collecting bulk samples of suspect ACBM, distinct homogeneous sampling areas and specific sampling sites were defined. A homogeneous sample area can be defined as a material that is similar in appearance, color, and generally having the same episode of installation as surrounding alike material. Attempts were made in all cases to obtain representative samples of like materials, as this is the most cost-effective method for determination of ACBM. It should be assumed by the building owner, contractor, and the abatement contractors that the compositions of like materials in a single homogeneous area are the same.

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As the suspect ACBM was located and identified, bulk samples were obtained and placed in labeled individual containers. The sample identification number on the containers directly corresponds with the numbers listed on the Chain-of-Custody (COC) and laboratory reports presented in Appendix B. In the event, that during any renovation or demolition, any suspect material is encountered behind any walls or other areas that were not accessible at the time this survey was conducted, samples of these suspect materials should be collected and analyzed by qualified asbestos inspectors and laboratories, respectively.

1.5 Assessment of Suspect ACBM:

In accordance with AHERA (October 30, 1986), verified or assumed ACBM discovered in an inspection or reinspection of a facility shall be assessed in view of past, present, or future likelihood of disturbance and may include the following:

• Location of material present;

• Condition of material: type of damage; severity of damage; and the extent or spread of damage;

• Accessibility of the materials;

• Potential for disturbance of the material;

• Known or suspected causes of damage (i.e., air erosion, vandalism, service or repair, vibration, and water);

• Preventative measures which might eliminate the possibility of undamaged ACBM from being significantly damaged; and

• Actions to be taken to protect human health.

1.5.1 Classification of ACBM: Verified ACBM are classified into one of the following categories:

• Damaged ACBM thermal system insulation;

• Significantly damaged ACBM thermal system insulation;

• Damaged friable surfacing ACBM;

• Significantly damaged friable surfacing ACBM;

• Damaged friable miscellaneous ACBM;

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• Significantly damaged friable miscellaneous ACBM;

• ACBM with potential for damage;

• ACBM with potential for significant damage; and

• Remaining ACBM not fitting into categories above.

ACBM is defined as friable if the material contains more than one percent asbestos that, when dry, can be crumbled, pulverized, or reduced to powder by hand pressure. ACBM is defined as non-friable if the material contains more than one percent asbestos that when dry, cannot be crumbled, pulverized, or reduced to powder by hand pressure. Friable materials are more likely to become airborne, thereby increasing the potential for health hazards.

1.5.2 Prioritization: The ACBM is usually examined and prioritized according to condition, location, potential for damage, and potential or fiber release. The priorities are usually divided into the following categories:

• Low Hazard - Those non-friable materials in good condition with low potential for disturbance (L).

• Moderate Hazard - Those currently non-friable or friable materials in good physical condition that have a moderate potential for disturbance or damage to make them friable and release asbestos fibers into the air (M).

• High Hazard - Those friable or non-friable materials that have become friable in poor physical condition and/or likely to be disturbed by air currents, water damage, construction, or other activities which could distribute airborne asbestos fibers (H).

• Immediate Hazard - Those friable or non-friable materials that have become friable, that are significantly damaged, have released material, and/or are very likely to expose unprotected persons (I).

1.6 Laboratory Methods:

A total of 12 bulk samples were collected from the rooms accessed. Polarized Light Microscopy (PLM) methods were utilized with dispersion-staining techniques according to US Environmental Protection Agency (EPA) Method EPA 600/R-93/116. This type of

Asbestos Survey Page 6 August 2024 analysis requires the microscopist to take a portion of the bulk sample and treat it with a special light-refractive oil emulsion stain. This prepared slide is then subjected to a variety of tests while being viewed under varying polarization of light.

Each type of asbestos is determined by visual estimation. Even though this is estimation, any material that contains one percent or greater of any type of asbestos using the PLM method is considered an ACBM and must be handled according to Occupational Safety and Health Agency (OSHA) and EPA regulations, if disturbed.

Friable materials may be reanalyzed using the objective point counting method. (Asbestos NESHAP Revision Final Rule to CFR 61.141). The point counting method shall take precedent when different to the standard PLM method.

The samples were submitted to Moody Labs in Farmers Branch, Texas for analysis. This laboratory is a National Voluntary Laboratory Accreditation Program (NVLAP) accredited laboratory and licensed by the Texas Department of State Health Services (TDSHS).

1.7 Response Actions:

The following four (4) basic response actions are options for each type of ACBM:

• Operations and Maintenance - Requires maintenance of the material in an undamaged condition. This includes the repair or removal of damaged materials, record keeping, worker training, re-inspection, prevalent level air monitoring, and documentation in a comprehensive Operations and Maintenance Program (O&M) specific to the building.

• Encapsulation - Requires sealing of the exposed surface of the ACBM with a bridging-type encapsulant or conversion from a friable to non-friable status with penetrating type encapsulant. Encapsulation work must be conducted under conditions which control the release of asbestos fibers into the building areas.

• Enclosure - Requires isolation of the ACBM behind or within air-tight barriers of gypsum wallboard, plyboard, etc. Enclosure work must be conducted under conditions which control the release of asbestos fibers into the building areas.

• Removal - Requires removal and disposal of the ACBM under full asbestos abatement conditions by licensed asbestos abatement contractors.

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2.0 Survey Findings:

The following findings are based on site investigations performed on July 29, 2024. This asbestos survey was performed in accordance with the Texas Asbestos Health Protection Rules, 25 TAC 296.191).

The following materials were identified as suspect ACBM or PACM:

• Cove Base (black) with Mastic (yellow), located throughout;

• DWGB with Texture (smooth) and Joint Compound, located throughout;

• SAT (fissures), located throughout on ceiling; and

• 4x4 Ceramic Floor Tile (red) with Grout, located in bathroom.

Materials observed but not suspected of containing asbestos were not sampled. The non-sampled materials included fiberglass insulation, metal products, glass materials, plastic products, and wood materials. A table presenting a summary of the ACMs is presented as Table 1 in the Tables Section.

The facility was viewed at 815 Rapcon Rd., Dyess AFB, Texas on July 29, 2024. A total of 12 bulk samples of suspected ACBM materials were collected at this location. The laboratory reports are presented in Appendix B.

2.1 Laboratory Results:

Based on the laboratory results, none of the twelve (12) samples contained 1% or greater asbestos and therefore these materials are NOT considered ACBMs.

3.0 RECOMMENDATIONS:

• Any suspect building materials not sampled in this assessment encountered during renovation or demolition activities should be sampled and tested for possible asbestos content by qualified personnel prior to continuation of demolition activities.

4.0 STANDARDS/LIMITATIONS:

The work performed, in conjunction with the data developed, is intended as a description of available information at the dates and locations given. This report does not warrant against future operations or conditions, nor does it warrant against operations or conditions present of a type or at a location

Asbestos Survey Page 8 August 2024 not investigated.

Opinions and recommendations presented herein apply to site conditions existing at the time of our investigation and those reasonably foreseeable; they cannot necessarily apply to site changes of which eHT is not aware and has not had the opportunity to evaluate.

This report is designed to aid the building owner, architect, construction manager, general contractor, and potential abatement contractor in locating ACBM. Under no circumstances is this report to be used as a bidding document or a project specification document. Building material quantities are approximated and abatement contractors should quantify building materials for their use in bidding.

Reasonable efforts were made to obtain representative samples of building materials and have those materials analyzed for asbestos content. Materials or conditions which were not observed due to the survey conditions stated herein may differ from those documented in this report. Should suspect materials be discovered during building renovation/demolition that have not been addressed, bulk samples of the material should be collected and analyzed for asbestos content prior to renovation and/or demolition.

Our professional services have been performed, our findings obtained, and recommendations prepared in accordance with customary principles and practices in the fields of environmental science and engineering. This warranty is in lieu of all other warranties either expressed or implied.

eHT is not responsible for the independent conclusions, opinions, or recommendations made by others based on the field exploration and laboratory test data presented in this report.