8 Asbestos and LBP Survey Report.pdf

_JJJ� Derek Sizemore Senior Staff Scientist Asbestos Building Inspector

Asbestos Contractor/Supervisor terracon.com

ASBESTOS ABATEMENT

TECHNICAL OUTLINE

Repair Facility 131 Davis Monthan Air Force Base

Tucson, Arizona

August 12, 2019

Project No. 63187118

Submitted to:

Ms. Diane L. Glass, PMP, P.E Vice President

MOCA Systems, Inc.

One Riverwalk Place

700 N. St. Mary's, Suite 1760 San Antonio, TX 78205

Prepared by:

��!WM

Office Manager Asbestos Building Inspector

Asbestos Contractor/Supervisor

Asbestos Project Designer No. 4653-267-0924/8 lrerracan Environmental Facilities • Geotechnical Materials

TABLE OF CONTENTS

Section Title Page No.

1.0 General

2.0 Scope of Work

3.0 Quality Assurance

4.0 Submittals

5.0 Worker Protection

6.0 Abatement Air Monitoring

7.0 Products……………………………………………………………………………6

8.0 Items to be Removed……………………………………………………………...7

9.0 Technical Outline of Work…………………………………………………………7

Attachments

A SF-Forms

B Terracon Limited Asbestos and Lead Paint Survey (Project 63187118)

C Project Designer Certification

MOCA Interior

August 13, Repair Facility 131 Renovations Terracon Project No. 63187118

TECHNICAL OUTLINE

1.0 GENERAL

1.1

1.2

1.3

1.4

1.5

1.6

1.7

1.8

1.9

Work includes removal of Asbestos-Containing Material (ACM) from the Repair Facility 131 on the Davis Monthan Air Force Base in Tucson, Arizona. For purposes of this document, Government is identified as the “Owner”.

Any proposed Technical Outline modifications are subject to approval by Contracting Offcier

Conduct work in accordance with all applicable federal, state, and local regulations, including but not limited to OSHA (29 CFR 1926 and 29 CFR 1910), EPA NESHAP (40 CFR 61, Subparts A and M) plus all applicable State and Local codes, regulations and laws.

Make all provisions necessary to maintain building security during abatement operations, including all work and materials necessary to allow for exhausting air to the building exterior.

Government will have the authority to stop any job activity that, in their judgment, is not being performed satisfactorily, safely, or in accordance with applicable regulations, guidelines, and the requirements of this Technical Outline.

All abatement equipment brought on site shall be clean and free of asbestos materials and suspected asbestos materials. All HEPA vacuums and air filtration units shall be cleaned and be free of asbestos materials. All equipment shall be in manufacturer’s recommended operational condition. Equipment not in compliance with the above requirements shall be removed from the site.

Maintain moisture of material during all phases of asbestos abatement. Maintain humidity in work areas. Wetting procedures are to be used for all phases of asbestos abatement unless specifically identified in the Technical Outline

Promptly clean up all ACM waste. Properly containerize and label all ACM waste. Maintain the moisture content of containerized ACM waste as per 40 CFR 61.150.

Provide a lockable container, lined with two layers of six-mil polyethylene for storage and disposal of asbestos-containing waste. Contractor is responsible for providing lock for container.

1.10 Transport and dispose of all asbestos-containing waste at a disposal site, which is Environmental Protection Agency (EPA) approved for deposits of asbestos waste and approved by the United States of America.

Repair Facility 131 Renovations Terracon Project No. 63187118

2.0 SCOPE OF WORK

2.1 The Work is defined as the removal and legal disposal of asbestos-containing materials according to the requirements of the following work procedure sections in the sequence indicated. The scope of work has been identified as Class II Work as described by OSHA regulation, 29 CFR 1926.1101.

2.2 Scope of Work:

2.2.1 Establish containment for work areas per specification.

2.2.2 Remove asbestos containing or contaminated floor tile and mastic by manual means utilizing scrapers for tile and approved low odor solvent. Mop areas after abatement with deodorizing solutions (Simple Green or like substance) and encapsulate the work area prior to PCM final air clearances final visual clearances.

2.2.3 Dispose of all asbestos waste in accordance with all Federal, State and Local regulations, including, but not limited to EPA/NESHAP Title 40 CFR Part 61, Section 61.150, Subpart M. Dispose of all asbestos waste in an EPA approved landfill.

2.2.4 Acceptance of clearance criteria established herein.

2.3 Schedule: Start date has not yet been determined, but the completion time is four (4) working shifts and will be completed during regular business hours.

2.4 The Work Areas will be vacant during work. Adjacent areas of the building may be occupied.

2.5 Contractor is responsible for personnel air monitoring for the safety of its employees in accordance with OSHA requirements.

2.6 Final Clearance of the Work Areas will be established using Phase Contrast Microscopy (PCM) air clearance analysis.

2.7 From the first disturbance of asbestos-containing material until Final Air Clearance is achieved, personnel protective equipment shall include disposable full-body coveralls, boots, gloves, and head and eye protection, as required in accordance with OSHA regulations. All respiratory protective equipment shall be certified by NIOSH.

2.8 Prepare Project Submittals as specified. Secure and pay for all applicable permit fees and required insurance. Insurance coverage, of the type and minimum limits as defined in the Owner’s Contract, shall be maintained during the performance of the Contract.

Repair Facility 131 Renovations Terracon Project No. 63187118

2.9 Perform all incidental mechanical, electrical, and plumbing work to facilitate completion of the work in compliance with all applicable Federal, State and Local agencies.

2.10 Restrict access to the Work Areas in accordance with OSHA regulations. Establish negative air pressure for the Work Area enclosures as specified.

2.11 Decontaminate all surfaces in the Work Areas using wet methods and HEPA vacuums.

2.12 Provide temporary lighting and GFCI protected electrical service, as needed.

2.13 Transport and properly dispose all asbestos-contaminated waste in compliance with all Federal, State, and Local regulatory requirements, including, but not limited to EPA NESHAP, OSHA and DOT.

3.0 QUALITY ASSURANCE

3.1 Use only trained and experienced asbestos workers and supervisors to perform the work.

Asbestos workers and supervisors must have completed a course at an EPA Training Center or equivalent certified course in asbestos abatement.

3.2 Codes and Standards - Comply with the provisions of the following codes, specifications and standards, except as otherwise specified:

3.2.1 Follow the guidelines and procedures of the Asbestos Hazard Emergency Response Act (AHERA), 40 CFR 763.80-.99, regulating asbestos in secondary schools. All supervisors and workers on site shall meet the AHERA accreditation requirements.

3.2.2 OSHA Construction Industry Standards, including section 29 CFR 1926.1101 for asbestos.

3.2.3 U.S. Department of Labor - OSHA, Code of Federal Regulations Title 29, Part 1910 and Part 1926.

3.2.4 EPA National Emission Standard for Hazardous Air Pollutants (40 CFR, Part 61.140-156) regulating the removal and disposal of asbestos containing materials.

4.0 SUBMITTALS

4.1 Pre-Job Submittals:

Submit one copy of the Pre-Job Submittals to Consultant prior to the start of asbestos removal work. Removal work is prohibited until this submittal package has been reviewed and approved by Consultant. The following are required in the submittal:

4.1.1 Copy of current Arizona Asbestos Abatement Contractor License from the Registrar of Contractors.

Repair Facility 131 Renovations Terracon Project No. 63187118

4.1.2 Copy of insurance certificates issued to Client by Contractor's insurance carrier listing all coverage.

4.1.3 MSDS for all chemicals utilized onsite.

4.1.4 Notarized Contractors Acknowledgment (Form-1).

4.1.5 Waste Transporter Information Form (Form-2).

4.1.6 Disposal Site Information Form (Form-3).

4.1.7 Notarized Certificate of Workers Release (Form-4). (One per worker)

4.2 Post-Job Submittals:

Submit one copy of Post-Job Submittals to Consultant within three weeks following the completion of the work. The following are required in the submittal:

4.2.1 Copies of field notes and logs dated and signed by the supervisor/foreman, describing work performed each shift or each day, including the work practices and procedures used.

4.2.2 Legible copy of the signed waste disposal manifest from an approved disposal site.

4.2.3 Copies of the Daily Sign In/Out Log showing the following: Job, name, date, printed name, signature, entering and leaving time, type of respiratory protection used, company or agency represented and reason for entry for all persons entering the Work Area.

4.2.4 Copies of employee air monitoring results relative to the Occupational Safety and Health Administration respiratory protection levels.

4.2.5 Copies of all employees' Notarized Certificate of Workers Release (Form-4) not included in the Pre-Job Submittal.

5.0 WORKER PROTECTION

5.1 Prior to commencement of work, instruct all workers in the appropriate procedures for personal protection and asbestos removal. Ensure that workers are knowledgeable in these procedures.

5.2 The Contractor is solely responsible for enforcing worker protection requirements as specified in OSHA 29 CFR 1926.1101.

5.3 The Contractor is solely responsible for providing respiratory protection at all times, which are in compliance with or in excess of OSHA requirements and all state and local regulations.

Repair Facility 131 Renovations Terracon Project No. 63187118

5.4 Full head-foot covering protective clothing is to be worn whenever respiratory protection is worn.

6.0 ABATEMENT AIR MONITORING

6.1 Personal Exposure Monitoring. The Contractor shall be responsible for conducting personal air monitoring of his or her employees in accordance with 29 CFR 1926.1101(f).

6.2 Containment Enclosure Final Air Clearance Requirements. After cleanup operations in a work area are completed, and the comprehensive visual inspection is satisfactory, Terracon will conduct appropriate final clearance air monitoring. The cost of analysis for the first set of air samples for each containment work area shall be the responsibility of Owner and/or Owner Representative.

6.2.1 PCM NIOSH Method 7400 Air Clearance Monitoring shall be passive air clearance procedures as directed by Terracon. The number of PCM air samples collected will be determined by the size of the containment work area(s). The action shall be considered complete when the results of samples collected in the affected functional space show that the concentration of fibers for each of the air samples is less than or equal to a 0.01 f/cc for airborne fiber concentration.

Minimum sample air volumes shall be at least 1,200 liters for 25-millimeter filter cassettes. Sample results are not averaged.

6.2.3 If the initial work area Final Air Clearance samples fail to meet clearance standards as described, subsequent costs for re-cleaning and reinspection, clearance air monitoring, including air sample invoices, and Terracon personnel man-hours and expenses will be paid by the Contractor. Terracon hourly rates will vary based on rates of the assigned staff.be charged. PCM air clearances will utilize a RUSH laboratory analysis turnaround time. PCM analysis rates will be charged at $23.00 per sample. An additional charge of $35.00 per sample may be added if the sample is received by the laboratory after normal business hours.

6.3 Fiber Levels in Areas Outside the Containment Work Area. Airborne fiber levels in an area adjacent to the work area, or in any part of the building impacted by the abatement activities included in this scope of work, shall not exceed 0.01 f/cc by PCM or the measured background.

6.3.1 If these levels are exceeded, cease all removal operations immediately. Take remedial action (e.g., HEPA vacuuming, wet cleaning methods, repair of containment, repair critical barriers, etc.) to reduce airborne fiber concentrations to acceptable levels. Time taken to perform remedial activities is the responsibility of the Contractor. No claim for delay due to excessive outside fiber concentrations will be approved.

6.3.2 If at any time results of air samples by PCM exceed 0.01 f/cc or the measured background level, whichever is lower, the Contractor may request that Terracon collect additional air samples for analysis by TEM. The cost, utilizing the

Repair Facility 131 Renovations Terracon Project No. 63187118 described rates, of additional sample collection and analysis by TEM for further evaluation of airborne fiber levels shall be the responsibility of the Contractor.

6.4 Fiber Levels Inside the Containment Work Area. Fiber levels inside the work area shall not exceed the ceiling level of 0.1 f/cc calculated as an eight-hour TWA for airborne fiber concentration or greater than 1.0 f/cc over any 30-minute period as determined by area air samples analyzed by PCM. If this fiber level is exceeded, stop removal activities and take measures to reduce the airborne fiber concentration below these levels.

7.0 PRODUCTS

7.1 Containment Enclosure Materials:

7.1.1 4-mil fire rated polyethylene sheeting.

7.1.2 6-mil fire rated polyethylene sheeting.

7.1.3 Duct tape.

7.1.4 Spray glue.

7.1.5 Properly labeled 6-mil ACM disposal bags.

7.1.6 1/2" exterior grade plywood.

7.2 Labels

7.2.1 OSHA, EPA, and DOT required six (6)-mil polyethylene bags labeled with

"DANGER--CONTAINS ASBESTOS FIBERS. AVOID CREATING DUST.

CANCER AND LUNG DISEASE HAZARD...etc": For disposal of asbestos waste.

7.2.2 OSHA required "DANGER ASBESTOS--CANCER AND LUNG DISEASE HAZARD...etc." warning signs: To be posted at regulated areas.

7.2.3 Label each bag or barrel with the following information:

.1

.2

Name of waste Generator (Davis Monthan Air Force Base).

Name of location at which waste was generated (FAC 131), Davis Monthan Air Force Base, Tucson, AZ).

7.2.4 Barrier Tape labeled with "DANGER ASBESTOS": To be used for isolation of staging area adjacent to regulated work area.

7.3 Worker Clothing And Equipment:

7.3.1 Full Body, Disposable, Protective Coveralls: Meet ANSI/ISEA 101-1985.

Repair Facility 131 Renovations Terracon Project No. 63187118

7.3.2 Gloves: Abrasion-resistant, disposable, vinyl, meeting OSHA 29 CFR 1910.156-165.

7.3.3 Respirator:

.1 Half-face, dual cartridge, HEPA filtered Air Purifying Respirator (APR).

.2 Full-face Powered Air Purifying Respirator (PAPR).

.3 Full-face Air Purifying Respirator.

7.3.4 Respirator Filters: NIOSH and OSHA approved:

.1 Filter cartridge type rated for exclusion of asbestos-containing dust and mists.

.2 Combination cartridge, GMA-H type rated for exclusion of organic vapors and asbestos-containing dust.

7.3.5 Protective Eyewear: Of type appropriate for use with half-face respirators during standard construction work.

7.3.6 Boots: Of standard manufacture for this purpose, solid type.

8.0 ITEMS TO BE REMOVED

8.1 Approximately 1,600 square feet of asbestos-containing gray backing material underlying white ceramic floor tile within the corridors of the building. While only one sample identified the ACM in the underlying layer, for the purpose of quantifying ACM, Terracon assumed the asbestos-containing backing material underlies all white ceramic tile/grout throughout the building corridors. (Dispose as ACM waste).

8.2 Approximately 15 square feet of black/tan/yellow mastic underlying carpet within Office

112. (Dispose as ACM waste).

8.3 Approximately 80 square feet of beige vinyl sheet flooring within Corridor 124 (Dispose as ACM waste).

8.4 Approximately 15 linear feet of hard pack elbows within the Mechanical Room 119 (Dispose as ACM waste).

8.5 Approximately 100 square feet of beige HVAC duct sealant above the false drop ceiling throughout the building (Dispose as ACM waste).

8.6 Approximately 12,000 square feet of textured drywall system (‘orange peel’) throughout the building. The material texture is <1% and thus is not regulated by NESHAP, but is

Repair Facility 131 Renovations Terracon Project No. 63187118 regulated under OSHA Construction Standard for Asbestos (29 CFR 1926.1101).

(Disposal waste is not regulated).

9.0 TECHNICAL OUTLINE OF WORK: ASBESTOS-CONTAINING MATERIALS

REMOVAL

9.1 Preparation:

9.1.1 Permit no unauthorized access to the work area. Post warning signs and barrier tape at all entrances to the floor staging area and on decontamination facility entrances into the Work Area.

9.1.2 Install a single layer of 6-mil fire rated polyethylene sheeting on critical barriers.

This includes any recessed can lights if applicable. Install HVAC return air ductwork seals on required ducts before any abatement work begins.

9.1.3 Install one layer of 6-mil black or opaque fire rated polyethylene over all windows and openings around the Work Area and changing area to restrict any visibility into the Work Area by the general public.

9.1.4 Drape one layer of 6-mil fire rated polyethylene sheeting over any unmovable furniture found in the Work Area. Contractor is responsible for protecting and/or decontaminating any materials left in containment during removal.

9.1.5 Install one layer of 6-mil fire rated polyethylene four high splash guard on all walls inside the work areas.

9.1.6 Install a sufficient number of view ports where applicable.

9.1.7 Provide a changing area adjacent to decontamination facilities. Utilize black or opaque fire rated polyethylene sheeting to restrict visibility of changing area to the general public. Size changing area adequately to accommodate the work crew.

Provide an adequate supply of clean, disposable clothing, replacement HEPA cartridges for respirators, and other necessary items.

9.1.8 Install a sufficient number of HEPA AFUs to establish negative pressure inside Work Area. Exhaust AFUs to building exterior. Secure any doors or windows used for exhaust with plywood to allow for building security.

9.1.9 Construct a decontamination facility consisting of, at a minimum, a clean room and an equipment room. Separate each chamber from the others and from the work area by three-flap overlapping polyethylene curtain doorways. Provide a source of clean water for worker decontamination.

9.1.10 Provide GFI-protected sources of temporary electrical power. Electrical source for GFI panels is to be outside of work area. Coordinate installation of panels with General Contractor. Facility and/or equipment may be on same electrical circuits. Power to this equipment is not to be interrupted.

Repair Facility 131 Renovations Terracon Project No. 63187118

9.1.11 When containment preparations are complete, Terracon will conduct a preparation inspection of the work area. Terracon shall approve the containment before asbestos-related work begins.

9.2 Execution:

9.2.1 From this point, the work will disturb asbestos-containing material. The minimum respiratory protection shall be half-face air purifying respirators equipped with HEPA (N-, R-, or P-100) cartridges. Full protective clothing and decontamination procedures apply in the work area.

9.2.2 Remove identified asbestos containing materials and textured drywall system (<1% asbestos) from the work areas. Remove using wet methods.

9.2.3 Mechanical removal methods are not permitted for this job unless a NESHAP Notification has been filed.

9.2.4 Upon completion of ACM removal, remove all wall polyethylene. HEPA vacuum and wet-clean Work Area. Detail clean and remove all residue and debris. When ready for visual inspection, remove all equipment no longer required in the Work Area.

9.2.5 After cleaning is complete, Terracon will conduct a visual inspection of the Work Area.

Air clearance sampling will be conducted following a short recirculation period.

9.2.6 Upon receipt of notice of successful air clearance results, remove all remaining polyethylene, tape, tape residue, spray glue residue, staples, and any other items remaining following abatement.

9.3 Air Clearance: Clearance Air Samples will be analyzed by PCM.

9.4 Surveillance:

9.4.1 Terracon will conduct daily perimeter air monitoring of the work area for airborne fiber level compliance.

9.4.2 Outside containment airborne fiber concentration shall be maintained at/or below

0.01 f/cc or measured background PCM airborne fiber concentration. If outside concentration is found to be above 0.01 f/cc or measured background level, the Asbestos Contractor shall be required to conduct minimization cleaning by HEPA vacuuming and wet-wiping procedures until the airborne fiber concentration is found to be at an acceptable level.

9.4.3 The Contractor is responsible for worker personal air monitoring. Results from the personal air samples are required for submittal to Terracon within 24 hours following the work shift collected.

Repair Facility 131 Renovations Terracon Project No. 63187118

9.5 Project Completion: Project will be considered complete when all required documentation has been received by Terracon including: all required daily submittals; completed waste manifests; and a finalized, written punchlist documenting correction of any documented damage and removal of remaining polyethylene, staples, tape or tape residue, etc. When all documentation has been received, Terracon will issue a written approval to MOCA for authorization of final payment. Note that the fees described in this Asbestos Abatement Technical outline do not reflect the total cost of our services to provide Asbestos Abatement Oversight. Once an abatement schedule has been establish by the abatement contractor, Terracon can provide a proposal for the oversight services.

ATTACHMENT A

SF-FORMS

Form-1 CONTRACTOR’S ACKNOWLEDGMENT

OWNER: United States of America

PROJECT: Repair Facility 131

WORKER TRAINING

I hereby certify that each and every worker to be utilized on the above-mentioned Project has received instruction regarding the hazards of asbestos exposure, protective dress, use of showers, entry and exit from a Work Area, and in all work procedures and protective measures regarding asbestos removal. Additionally, each and every worker has successfully completed a course at least as stringent as that required under AHERA 40 CFR Part 763 for Asbestos Abatement Worker certification, and any other state or local regulations, which may supersede AHERA regulations.

MEDICAL SURVEILLANCE

I hereby certify that each and every worker employed in the removal, disposal, transportation, and handling of asbestos-containing material or debris is actively involved in an employee medical surveillance program, as required by Occupational Safety and Health Administration (OSHA) regulation 29 CFR 1926.1101.

RESPIRATORY TRAINING

I hereby certify that in accordance with the Occupational Safety and Health Administration (OSHA) regulation 29 CFR 1910.134, each and every worker has been trained in the use of each type of respiratory protection equipment required for use on this project.

I hereby certify and represent that the above information is correct, and further certify that documentation of the above represented facts will be provided to the Owner if so directed.

CONTRACTOR:

NAME:

TITLE:

(Signature and Date)

State of ) County of )

Subscribed and sworn before me this day of , 20

Notary Seal

(Signature of Notary Public)

My commission expires .

Form-2 WASTE TRANSPORTER INFORMATION FORM

PROJECT: Repair Facility 131

The proposed transporter for use in the transporting of asbestos-containing waste and/or asbestos-contaminated debris from the work site is identified below. Furthermore, the waste is not to be transported to a temporary storage facility, identified below, before being transferred to the disposal site.

Transporter Name:

Owner:

Address:

Contact Person:

Telephone:

I hereby certify and represent that the above information is correct, and further certify that documentation of the above represented facts will be provided to the Owner if so directed.

CONTRACTOR:

NAME:

TITLE:

(Signature and Date)

Form-3 DISPOSAL SITE INFORMATION

PROJECT: Repair Facility 131

The proposed disposal site for use in disposing of asbestos-containing waste and/or asbestos-contaminated debris meets or exceeds all current federal and state regulatory requirements.

Landfill Name:

Owner:

Address:

Contact Person:

Telephone:

I hereby certify and represent that the above information is correct, and further certify that documentation of the above represented facts will be provided to the Owner if so directed.

CONTRACTOR:

NAME:

TITLE:

(Signature and Date)

Form-4 CERTIFICATE OF WORKER'S RELEASE (Per Worker)

OWNER: United States of America

PROJECT: Repair Facility 131

EMPLOYEE NAME:

EMPLOYEE S.S.N.:

In consideration of my employment by (Contractor) in conjunction with the removal and proper disposal of asbestos containing materials, or other work in asbestos-contaminated Work Area(s), and for good, valuable, and sufficient consideration, herewith exchanged, the undersigned does hereby acknowledge, warrant, represent, covenant, and agree as follows:

(1) I acknowledge and understand that I have been or will be employed in connection with the removal of, proper disposal of, or other work in asbestos-contaminated Work Areas, and I acknowledge that I have been advised of and I understand the dangers inherent in handling asbestos and breathing asbestos dust, including, but not limited to, THE FACT THAT ASBESTOS CAN CAUSE ASBESTOSIS AND IS A

KNOWN CARCINOGEN AND CAN, THEREFORE, CAUSE VARIOUS TYPES OF CANCER.

(2) I acknowledge and understand that ANY CONTACT WITH ASBESTOS, WHETHER IT CAN BE

SEEN OR NOT, MAY CAUSE ASBESTOSIS AND VARIOUS FORMS OF CANCER, WHICH MAY

NOT SHOW UP FOR MANY YEARS, and I covenant and agree faithfully to take all precautions required of me.

(3) I hereby warrant and represent that I have not been disabled, laid-off, or compensated in damages or otherwise, because of the disease of asbestosis or any other cancer disease.

(4) I represent that I can read the English language, or that I have had someone read this instrument to me, and that I understand the meaning of all the provisions contained herein.

Employee:

(Signature and Date)

I hereby certify and represent that the above information is correct, and further certify that documentation of the above represented facts will be provided to the Owner if so directed. This Certificate of Worker's Release is valid for the duration of the Project.

CONTRACTOR:

NAME:

TITLE:

(Signature and Date)

State of ) County of ) Subscribed and sworn before me this day of , 20

Notary Seal

(Signature of Notary Public) My commission expires .

THIS PAGE LEFT INTENTIONALLY BLANK FOR DUPLEX PRINTING

ATTACHMENT B

TERRACON LIMITED ASBESTOS AND LEAD PAINT SURVEY

(PROJECT 63187118)

Limited Asbestos and Lead Paint Survey Repair Facility 131

Davis-Monthan Air Force Base (DMAFB) Tucson, Pima County, Arizona Terracon Project No. 63187118

July 12, 2019

Prepared for:

MOCA Systems, Inc.

San Antonio, TX

Prepared by:

Terracon Consultants, Inc.

Tucson, AZ

Terracon Consul tants, Inc. 355 S. Euclid , Suite 107 Tucson, AZ 85719 P 520-770-1789 F 520-792-2539 terracon.com

July 12, 2019

Ms. Diane L. Glass, PMP, P.E Vice President

MOCA Systems, Inc.

One Riverwalk Place 700 N. St. Mary’s, Suite 1760 San Antonio, TX 78205

Telephone: (210) 355-1355 E-mail: dlg@mocasystems.com

Re: Limited Asbestos and Lead Paint Survey Repair t Davis-Monthan Air Force Base (DMAFB) Tucson, Pima County, Arizona Terracon Project No. 63187118

Dear Ms. Glass:

Terracon Consultants, Inc. (Terracon) is pleased to submit the attached report for the above referenced site to MOCA Systems, Inc. (MOCA / Client). The purpose of this report is to present the results of an asbestos-containing material (ACM) and lead-based paint (LBP) survey performed on April 22, 2019. This survey was conducted in general accordance with Terracon Proposal No. P63187118, dated July 24, 2018 and the Professional Services Master Subconsulting Agreement between MOCA and Terracon dated October 9, 2017. We understand the purpose of this survey is to identify and locate ACM and LBP on the exterior and interior areas of the aforementioned building. We further understand the building is slated for renovation and that asbestos sampling was limited to the interior of the facility.

Terracon appreciates the opportunity to provide this service to MOCA Systems, Inc. If you have any questions regarding this report please contact the undersigned at (520) 798-4844 (Derek S.).

Sincerely, Terracon Consultants, Inc.

Derek R. Sizemore, CHMM Derek D. Koller, CHMM Senior Staff Scientist Office Manager

TABLE OF CONTENTS

Responsive Resourceful Reliable ii

EXECUTIVE SUMMARY

1.0 INTRODUCTION

1.1 Reliance

2.0 BUILDING DESCRIPTION

3.0 FIELD ACTIVITIES

3.1 Visual Assessment

3.2 Physical Assessment

3.3 Sample Collection

3.4 Sample Analysis

4.0 REGULATORY OVERVIEW

5.0 FINDINGS AND RECOMMENDATIONS

6.0 LIMITATIONS/GENERAL COMMENTS

APPENDIX A IDENTIFIED ASBESTOS CONTAINING MATERIALS BY HOMOGENEOUS AREA (HA),

MATERIALS CONTAINING 1% OR LESS ASBESTOS BY HA

APPENDIX B ASBESTOS SURVEY SAMPLE SUMMARY

APPENDIX C IDENTIFIED LEAD CONTAINING PAINTS

APPENDIX D LEAD SURVEY SAMPLE SUMMARY

APPENDIX E SAMPLING LOCATION DIAGRAMS

APPENDIX F ANALYTICAL LABORATORY DATA

APPENDIX G LICENSES AND CERTIFICATIONS

Responsive Resourceful Reliable 1

Hazardous Materials Survey Repair Facility 131 Tucson, Arizona July 12, 2019 Terracon Project No. 63187118

EXECUTIVE SUMMARY

Terracon Consultants Inc. (Terracon) conducted an asbestos-containing material (ACM) and lead-based paint (LBP) survey at the building located at the Davis-Monthan Air Force Base (DMAFB) Repair , Facility 131 in Tucson, Pima County, Arizona. The survey was conducted on April 22, 2019 by an Asbestos Hazard Emergency Response Act (AHERA)-accredited asbestos building inspector and an EPA certified lead paint inspector.

This survey was conducted in general accordance with Terracon Proposal No. P63187118, dated July 24, 2018 and the Professional Services Master Subconsulting Agreement between MOCA and Terracon dated October 9, 2017. We understand the purpose of this survey is to identify and locate asbestos-containing materials (ACM), Lead-Based Paint (LBP), and Lead-Containing Paint (LCP) within interior and exterior areas slated for renovation of the aforementioned building. We further understand the building is slated for renovation, and that asbestos and LBP sampling will be limited to project specific area to be affected for renovations.

The asbestos portion of the survey was performed to satisfy requirements of the EPA Regulation 40 Code of Federal Regulations (CFR) Part 61, Subpart M, National Emission Standards for Hazardous Air Pollutants (NESHAP). Suspect ACM samples were collected in general accordance with the sampling protocols outlined in EPA 40 CFR Part 763 Subpart E, known as AHERA. Bulk asbestos samples were delivered to an accredited laboratory for analysis by Polarized Light Microscopy (PLM). Although reasonable effort was made to survey accessible suspect materials, additional suspect but un-sampled materials could be located in walls, in voids or in other concealed areas.

The lead paint survey was performed to assist in compliance with Occupational Safety and Health Administration (OSHA) requirements for lead-in-air content during disturbance of painted materials. The LCP sampling was performed in general accordance with the procedures prescribed in the EPA’s work practice standards for conducting lead paint testing (40 CFR 745.227). The LCP survey was not designed to meet the requirements of the U.S. Department of Housing and Urban Development (HUD) for lead-based paint (LBP) surveys. The lead paint survey was conducted by collecting paint chip samples for laboratory analysis.

Asbestos Findings Terracon collected a total of 70 bulk asbestos samples from 22 homogeneous of suspect asbestos-containing materials (ACMs) throughout the building. The following ACMs were identified as a result of laboratory analysis:HA No. Material Description Material Location Estimated

Quantity*

‡1White Ceramic Tile/Grout

Underlying Gray Backing Material is ACM Corridors 1,600 sq. ft.

9 2Carpet Glue Office 112 15 sq. ft.

19 3Rolled Tan Flooring/Mastic Corridor 124 80 sq. ft.

Repair Facility 131 Tucson, Arizona July 12, 2019 Terracon Project No. 63187118

Responsive Resourceful Reliable 2

HA No. Material Description Material Location Estimated Quantity*

21 3Hard Pack Elbow Mechanical 119 15 linear ft.

22 1HVAC Duct Sealant Throughout Building 100 sq. ft.

1Category II (CAT II) non-friable ACM 2Category I (CAT I) non-friable ACM 3Regulated ACM (RACM) / Friable ‡White Ceramic Tile/Grout: Laboratory analysis identified Gray Backing Material ACM underlying the white ceramic tile and grout observed throughout the corridors of the building. While only sample 6 identified the ACM in the underlying layer, for the purpose of quantifying ACM, Terracon assumed the asbestos-containing backing material underlies all white ceramic tile/grout throughout the building corridors.

Sq. Ft. = Square Feet *Estimated quantities are based on a cursory field evaluation, and actual quantities may vary significantly, especially if asbestos containing materials are present in hidden and/or inaccessible areas not evaluated as part of this survey.

The previously listed Category II non-friable ACM that has a high probability of becoming crumbled, pulverized, or reduced to powder when dry, making it friable, must be removed prior to any activities (renovation and/or demolition) that may disturb this material in accordance with applicable federal, state and local regulations. USEPA believes that most demolition activities will subject Category II non-friable ACM to the asbestos NESHAP regulation.

The previously listed Category I non-friable ACM that is damaged or could be damaged to the extent that it could be crumbled, pulverized or reduced to powder when dry, making it friable, must be removed prior to any activities (renovation and/or demolition) that may disturb this material in accordance with applicable federal, state and local regulations.

The previously listed Regulated ACM (RACM) must be removed by a state licensed abatement contractor prior to any activities (renovation and/or demolition) that may disturb this material in accordance with applicable federal, state and local regulations.

The following materials were identified as a result of laboratory analysis as containing 1% asbestos:

HA No. Material Description Material Location Estimated Quantity*

5 Textured Drywall System (Orange Peel) †SIM Office (121) 12,000 Sq. Ft.

*Estimated quantities are based on a cursory field evaluation, and actual quantities may vary significantly, especially if asbestos containing materials are present in hidden and/or inaccessible areas not evaluated as part of this survey.

The materials listed in the table above were determined by PLM point counting to contain asbestos at a concentration of 0.75%. Thus, these materials are considered not to contain asbestos at concentrations greater that 1% and is not regulated by NESHAP. However, compliance with the USOSHA standard (29 CFR 1926.1101) is still required. Compliance by building owners with the

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USOSHA asbestos regulations may result in response actions not required by the EPA for certain unregulated materials. Under the USOSHA Construction Standard for Asbestos (29 CFR 1926.1101), materials containing less than or equal to 1% asbestos is still regulated to some degree.

The employer who disturbs this asbestos material must, 1) use wet methods, 2) promptly contain any waste in leak-tight containers, and 3) conduct air monitoring or have a negative exposure assessment. The waste is not regulated for transportation or disposal by USEPA or USOSHA.

A summary of the classification, condition and approximate quantity of identified ACM is presented in Appendix A. A summary of suspect ACM samples collected during the survey is included as Appendix B. Diagrams depicting the surveyed areas and sample locations are included in Appendix E.

Terracon can provide the Client with a proposal for developing asbestos abatement specifications (project design) and for performing abatement oversight, air monitoring, and air clearance testing upon request.

Lead Paint Findings Terracon collected 19 paint chip samples from the site structure. Of the samples collected, the following 8 samples were identified as lead-containing paint.

Sample No. Paint Description Sample Location L-2 Grey Paint on Metal Door Frame Classroom 111 L-7 Blue Paint on Drywall SIM 129 L-9 Blue Paint on Metal Window Frame SIM 129

L-11 Salmon Paint on Wood Door SIM 2 L-12 Salmon Paint on Metal Door Frame SIM 1 L-15 Tan Paint on Drywall SIM 2 L-16 Tan Paint on Metal Window Frame SIM 2 L-17 Tan Paint on Metal Downspouts Exterior

A summary of the lead-based and lead-containing paints identified are included in Appendix C. A summary of all paint chip samples collected during the LCP survey is included as Appendix D.

Diagrams depicting the surveyed areas and sample locations are included in Appendix E.

Occupational exposure to lead occurring in the course of construction work, including demolition, is subject to the OSHA “Interim” Lead Exposure in Construction standard (29 CFR 1926.62). OSHA considers that surface coatings or materials that contain lead at concentrations exceeding the laboratory detection limit may constitute a health hazard to employees engaged in lead-related construction work. A negative exposure assessment should be conducted to determine if exposure during construction activities are below the required OSHA action levels and permissible exposure limits.

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Repair Facility 131 Tucson, Arizona July 12, 2019 Terracon Project No. 63187118

1.0 INTRODUCTION

Terracon Consultants Inc. (Terracon) conducted an asbestos-containing material (ACM) and lead-based paint (LBP) survey at the buildings located at the Davis-Monthan Air Force Base (DMAFB) Repair Facility 131 in Tucson, Pima County, Arizona. The survey was conducted on April 22, 2019 by an Asbestos Hazard Emergency Response Act (AHERA)-accredited asbestos building inspector and an EPA certified lead paint inspector.

This survey was conducted in general accordance with Terracon Proposal No. P63187118, dated July 24, 2018 and the Professional Services Master Subconsulting Agreement between MOCA and Terracon dated October 9, 2017. We understand the purpose of this survey is to identify and locate ACM and LBP on the exterior and interior areas of the aforementioned building. We further understand the building is slated for renovation, and that asbestos and LBP sampling will be limited to project specific area to be affected for renovations.

The asbestos portion of the survey was performed to satisfy requirements of the EPA Regulation 40 Code of Federal Regulations (CFR) Part 61, Subpart M, National Emission Standards for Hazardous Air Pollutants (NESHAP). Suspect ACM samples were collected in general accordance with the sampling protocols outlined in EPA 40 CFR Part 763 Subpart E, known as AHERA. Bulk asbestos samples were delivered to an accredited laboratory for analysis by Polarized Light Microscopy (PLM). Although reasonable effort was made to survey accessible suspect materials, additional suspect but un-sampled materials could be located in walls, in voids or in other concealed areas.

The lead paint survey was performed to assist in compliance with Occupational Safety and Health Administration (OSHA) requirements for lead-in-air content during disturbance of painted materials. The LCP sampling was performed in general accordance with the procedures prescribed in the EPA’s work practice standards for conducting lead paint testing (40 CFR 745.227). The LCP survey was not designed to meet the requirements of HUD for lead-based paint (LBP) surveys. The lead paint survey was conducted by collecting paint chip samples for laboratory analysis.

1.1 Reliance

This report is for the exclusive use of to MOCA Systems, Inc. (Client), as well as DMAFB and any subsequent contractors that they hire to perform work on the subject facilities for the project being discussed. Reliance by any other party on this report is prohibited without written authorization of Terracon and MOCA Systems, Inc. Reliance on this report by MOCA Systems, Inc. and all authorized parties will be subject to the terms, conditions, and limitations as defined in the Agreement between the Client (MOCA Systems, Inc.) and Consultant (Terracon).

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Repair Facility 131 Tucson, Arizona July 12, 2019 Terracon Project No. 63187118

2.0 BUILDING DESCRIPTION

The site is developed with an approximate 11,830 square foot building (Facility 131) located on the DMAFB in Tucson, Arizona. Facility 131 is a single-story masonry structure without a basement. The floor system of Facility 131 consists of poured flooring covered by ceramic tiling, rolled vinyl flooring, vinyl tiling, and carpeting. The weight-bearing wall systems are constructed of concrete masonry unit (CMU) block walls. The interior walls are constructed of textured drywall systems. The ceiling systems are constructed of drop-in acoustic ceiling tiles.

3.0 FIELD ACTIVITIES

The surveys were conducted by Derek R. Sizemore, an AHERA-accredited asbestos inspector and EPA-certified LBP inspector. Copies of inspector certificates are provided in Appendix G. The asbestos survey was conducted in general accordance with the sample collection protocols established in USEPA 40 CFR Part 763 Subpart E Section 763.86, AHERA. A summary of survey activities is provided in this section. The lead paint survey was conducted in general accordance with the procedures prescribed in the EPA’s work practice standards for conducting lead paint testing (40 CFR 745.227). The sampling was not designed to meet the requirements of HUD.

3.1 Visual Assessment

Asbestos Survey activities were initiated with visual observation of the interior of the building to identify homogeneous areas of suspect ACM. A homogeneous area (HA) consists of building materials that appear similar throughout in terms of color and texture with consideration given to the date of application. Assessment was conducted in visually accessible areas of the building proposed for demolition and renovation. Building materials identified as metal, glass, or wood were not considered suspect ACM.

The roofing systems were not sampled as part of this survey. Terracon inspected the interior ceiling, wall, and flooring systems in multiple places throughout the building and did not observe additional coverings/layers except where noted in this report, but there may be additional suspect material present within the building in concealed areas that was not observed.

Lead Paint Terracon visually assessed the interior and exterior of the existing building to identify construction materials suspect for LCP. Painted/coated surfaces which appear similar throughout in terms of color, texture, substrate and date of application are treated as a homogeneous material for paint chip collection purposes. Painted/coated surfaces were visually assessed for evidence of distress, flaking, and/or peeling.

3.2 Physical Assessment

Asbestos

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A physical assessment of each homogeneous area (HA) of suspect ACM was conducted to assess the friability and condition of the materials. A friable material is defined by the USEPA as a material which can be crumbled, pulverized or reduced to powder by hand pressure when dry.

Friability was assessed by physically touching suspect materials.

Lead Paint A physical assessment of each selected painted surface was conducted to assess its condition.

The painted surfaces were assessed as good, fair or poor condition depending on degree of cracking, peeling or chipping.

3.3 Sample Collection

Based on observations, bulk samples of suspect ACM were collected in general accordance with USEPA AHERA sampling protocols. Samples of suspect materials were collected from randomly selected locations in each homogeneous area. Bulk samples were collected using wet methods as applicable to reduce the potential for fiber release. Samples were placed in sealable containers and labeled with unique sample numbers using an indelible marker.

The selection of sample locations and frequency of sampling were based on Terracon’s observations and the assumption that like materials in the same area are homogeneous in content.

Terracon collected 70 bulk asbestos samples from 22 homogeneous areas of suspect ACM. A summary of the classification, condition and approximate quantity of identified ACM is presented in Appendix A. A summary of suspect ACM samples collected during the survey is included as Appendix B. Diagrams depicting the site building and sample locations are included in Appendix E.

Lead Paint Terracon collected 19 paint chip samples during the lead paint survey. A summary of the identified lead-based and lead-containing paints is included in Appendix C. A summary of all paint chip samples collected during the LCP survey is included as Appendix D.

3.4 Sample Analysis

Asbestos Bulk suspect ACM samples were submitted under chain of custody to International Asbestos Testing Laboratories of Mt. Laurel, NJ for analysis by polarized light microscopy with dispersion staining techniques per USEPA methodology 600/R-93/116. The percentage of asbestos in a sample, where applicable, was determined by microscopic visual estimation. International Asbestos Testing Laboratories is accredited under the National Voluntary Laboratory Accreditation Program (NVLAP) Accreditation No. 101165-0. A copy of the analytical laboratory report is provided in Appendix F.

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The EPA recognizes that PLM analysis of asbestos bulk samples can be inaccurate at low concentrations of asbestos (i.e., less than 10%). In Appendix E of 40 CFR 763, Subpart E (Interim Method of the Determination of Asbestos in Bulk Insulation Samples), the EPA codifies point counting as part of the asbestos analytical method. For samples reported with <10% asbestos by PLM visual estimation, the laboratory further analyzed the sampled by the point count method.

Lead Paint Paint chip samples were submitted under chain of custody to International Asbestos Testing Laboratories of Mt. Laurel, NJ for analysis by Flame Atomic Absorption Spectroscopy (FAAS) per USEPA methodology SW846-(3050B:7000B). International Asbestos Testing Laboratories is accredited under the American Industrial Hygiene Association (AIHA) (Accreditation No. 100188).

A copy of the analytical laboratory report is provided in Appendix F.

4.0 REGULATORY OVERVIEW

Asbestos The Asbestos NESHAP program in Arizona is enforced by federal, state, and county Asbestos NESHAP Coordinators. For projects occurring in Pima County, the County has been delegated authority from the EPA to enforce the Asbestos NESHAP within its respective jurisdictional boundaries, excluding tribal lands.

The asbestos NESHAP (40 CFR Part 61, Subpart M) regulates asbestos fiber emissions and asbestos waste disposal practices. The NESHAP regulation also requires the identification and classification of existing ACM according to friability prior to demolition or renovation activity.

Friable ACM is a material containing more than 1% asbestos that, when dry, may be crumbled, pulverized or reduced to powder by hand pressure. All friable ACM is considered regulated asbestos containing material (RACM).

The asbestos NESHAP regulation classifies ACM as either RACM, Category I non-friable ACM or Category II non-friable ACM. RACM includes all friable ACM, along with Category I and Category II non-friable ACM that has become friable or will be or has been subjected to sanding, grinding, cutting or abrading, or ACM that has a high probability of becoming or has become crumbled, pulverized, or reduced to powder in the course of renovation or demolition activity.

Category I non-friable ACM are exclusively asbestos-containing packings, gaskets, resilient floor coverings, resilient floor covering mastics and asphalt roofing products that contain more than 1% asbestos. Category II non-friable ACM are all other non-friable materials other than Category I non-friable ACM that contain more than 1% asbestos. Category II non-friable ACM generally includes but is not limited to cementitious material such as: cement pipes, cement siding, Cement Panels (Exterior), glazing, mortar and grouts.

The USOSHA asbestos standard for construction (29 CFR 1926.1101) regulates workplace exposure to asbestos. The USOSHA standard requires that employee exposure to airborne

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Lead Paint The lead paint sampling activities were conducted in general accordance with the EPA’s work practice standards for conducting lead activities (40 CFR 745.227). Lead is regulated by the EPA and OSHA.

The Resource Conservation and Recovery Act (RCRA) gave the USEPA authority to regulate the waste status of demolition or renovation debris, including lead-containing materials. Specific notification and testing requirements must be addressed prior to transporting, treating, storing, or disposing of hazardous wastes. Lead containing wastes are considered hazardous waste under RCRA if Toxicity Characteristic Leaching Procedure (TCLP) results exceed five milligrams per liter (mg/L).