8b. SECTION 02 82 00, ACM (2019-08).pdf

SECTION 02 82 00 Page 1

DIVISION 02 - EXISTING CONDITIONS SECTION 02 82 00

SECTION 02 82 00 ASBESTOS REMEDIATION

08/19

1. PART 1 GENERAL

1.1. REFERENCES

The publications listed below form a part of this specification to the extent referenced. The publications are referred to within the text by the basic designation only.

AMERICAN SOCIETY OF SAFETY ENGINEERS (ASSE/SAFE)

ASSE/SAFE Z9.2 (2012) Fundamentals Governing the Design and Operation of Local Exhaust Ventilation Systems

ASTM INTERNATIONAL (ASTM)

ASTM C732 (2006; R 2012) Aging Effects of Artificial Weathering on Latex Sealants

ASTM D2794 (1993; R 2010) Resistance of Organic Coatings to the Effects of Rapid Deformation (Impact)

ASTM D4397 (2016) Standard Specification for Polyethylene Sheeting for Construction, Industrial, and Agricultural Applications

ASTM D522/D522M (2014) Mandrel Bend Test of Attached Organic Coatings

ASTM E119 (2018) Standard Test Methods for Fire Tests of Building Construction and Materials

ASTM E1368 (2014) Visual Inspection of Asbestos Abatement Projects

ASTM E1494 (2012) Encapsulants for Spray or Trowel-Applied Friable Asbestos- Containing Building Materials

ASTM E736/E736M (2017) Standard Test Method for Cohesion/Adhesion of Sprayed Fire- Resistive Materials Applied to Structural Members

ASTM E84 (2018a) Standard Test Method for Surface Burning Characteristics of Building Materials

ASTM E96/E96M (2016) Standard Test Methods for Water

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Vapor Transmission of Materials

COMPRESSED GAS ASSOCIATION (CGA)

CGA G-7 (2014) Compressed Air for Human Respiration; 6th Edition

INTERNATIONAL SAFETY EQUIPMENT ASSOCIATION (ISEA)

ANSI/ISEA Z87.1 (2015) Occupational and Educational Personal Eye and Face Protection Devices

NATIONAL FIRE PROTECTION ASSOCIATION (NFPA)

NFPA 701 (2015) Standard Methods of Fire Tests for Flame Propagation of Textiles and Films

NATIONAL INSTITUTE FOR OCCUPATIONAL SAFETY AND HEALTH (NIOSH)

NIOSH NMAM (2016; 5th Ed) NIOSH Manual of Analytical Methods

U.S. ARMY CORPS OF ENGINEERS (USACE)

EM 385-1-1 (2014) Safety and Health Requirements Manual

U.S. ENVIRONMENTAL PROTECTION AGENCY (EPA)

EPA 340/1-90/018 (1990) Asbestos/NESHAP Regulated Asbestos Containing Materials Guidance

EPA 560/5-85-024 (1985) Guidance for Controlling Asbestos-Containing Materials in Buildings (Purple Book)

U.S. NATIONAL ARCHIVES AND RECORDS ADMINISTRATION (NARA)

29 CFR 1910.147 The Control of Hazardous Energy (Lock Out/Tag Out)

29 CFR 1926.103 Respiratory Protection

29 CFR 1926.1101 Asbestos

29 CFR 1926.200 Accident Prevention Signs and Tags

29 CFR 1926.51 Sanitation

29 CFR 1926.59 Hazard Communication

40 CFR 763 Asbestos

42 CFR 84 Approval of Respiratory Protective Devices

U.S. NAVAL FACILITIES ENGINEERING COMMAND (NAVFAC)

NAVFAC P-502 (2017) Asbestos Program Management

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ND OPNAVINST 5100.23 (2005; Rev G) Navy Occupational Safety and Health (NAVOSH) Program Manual

UNDERWRITERS LABORATORIES (UL)

UL 586 (2009; Reprint Dec 2017) UL Standard for Safety High-Efficiency Particulate, Air Filter Units

1.2. DEFINITIONS

1.2.1.ACM

Asbestos Containing Materials.

1.2.2.Amended Water

Water containing a wetting agent or surfactant with a maximum surface tension of 2.9 Pa 0.00042 psi.

1.2.3.Area Sampling

Sampling of asbestos fiber concentrations which approximates the concentrations of asbestos in the theoretical breathing zone but is not actually collected in the breathing zone of an employee.

1.2.4.Asbestos

The term asbestos includes chrysotile, amosite, crocidolite, tremolite asbestos, anthophyllite asbestos, and actinolite asbestos and any of these minerals that has been chemically treated or altered. Materials are considered to contain asbestos if the asbestos content of the material is determined to be at least one percent.

1.2.5.Asbestos Control Area

That area where asbestos removal operations are performed which is isolated by physical boundaries which assist in the prevention of the uncontrolled release of asbestos dust, fibers, or debris.

1.2.6.Asbestos Fibers

Those fibers having an aspect ratio of at least 3:1 and longer than 5 micrometers as determined by National Institute for Occupational Safety and Health (NIOSH) Method 7400.

1.2.7.Asbestos Permissible Exposure Limit

0.1 fibers per cubic centimeter of air as an 8-hour time weighted average measured in the breathing zone as defined by 29 CFR 1926.1101 or other Federal legislation having legal jurisdiction for the protection of workers health.

1.2.8.Authorized Person

Any person authorized by the Contractor and required by work duties to be present in the regulated areas.

1.2.9.Background

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The ambient airborne asbestos concentration in an uncontaminated area as measured prior to any asbestos hazard abatement efforts. Background concentrations for other (contaminated) areas are measured in similar but asbestos free locations.

1.2.10.Competent Person (CP)

Refer to supplement 18WG 02 82 00.00 30.

1.2.11.Contractor

The Contractor is that individual, or entity under contract to perform the herein listed work.

1.2.12.Disposal Bag

A 0.15 mm 6 mil thick, leak-tight plastic bag, pre-labeled in accordance with 29 CFR 1926.1101, used for transporting asbestos waste from containment to disposal site.

1.2.13.Disturbance

Activities that disrupt the matrix of ACM, crumble or pulverize ACM, or generate visible debris from ACM.

Disturbance includes cutting away small amounts of ACM, no greater than the amount which can be contained in one standard sized glovebag or waste bag, not larger than 1.5 m 60 inches in length and width in order to access a building component.

1.2.14.Encapsulation

The abatement of an asbestos hazard through the appropriate use of chemical encapsulants.

1.2.15.Encapsulants

Specific materials in various forms used to chemically or physically entrap asbestos fibers in various configurations to prevent these fibers from becoming airborne. There are four types of encapsulants as follows which must comply with performance requirements as specified herein.

1.2.15.1. Removal Encapsulant (can be used as a wetting

agent)

1.2.15.2. Bridging Encapsulant (used to provide a tough, durable surface coating to asbestos containing material)

1.2.15.3. Penetrating Encapsulant (used to penetrate the

asbestos containing material encapsulating all asbestos fibers and preventing fiber release due to routine mechanical damage)

1.2.15.4. Lock-Down Encapsulant (used to seal off or "lock-

down" minute asbestos fibers left on surfaces from which asbestos containing material has been

SECTION 02 82 00 Page 5 removed).

1.2.16.Friable Asbestos Material

Refer to supplement 18WG 02 82 00.00 30.

1.2.17.Glovebag Technique

Those asbestos removal and control techniques put forth in

29 CFR 1926.1101.

1.2.18.Government Representative

Refer to supplement 18WG 02 82 00.00 30.

1.2.19.HEPA Filter Equipment

High efficiency particulate air (HEPA) filtered vacuum and exhaust ventilation equipment with a filter system capable of collecting and retaining asbestos fibers. Filters must retain 99.97 percent of particles 0.3 microns or larger as indicated in UL 586.

1.2.20.Model Accreditation Plan (MAP)

USEPA training accreditation requirements for persons who work with asbestos as specified in 40 CFR 763.

1.2.21.Negative Pressure Enclosure (NPE)

That engineering control technique described as a negative pressure enclosure in 29 CFR 1926.1101.

1.2.22.NESHAP

NESHAP does not apply in Japan. Refer to supplement 18WG 02 82 00.00 30 for asbestos-related air emissions.

1.2.23.Nonfriable Asbestos Material

Material that contains asbestos in which the fibers have been immobilized by a bonding agent, coating, binder, or other material so that the asbestos is well bound and will not normally release asbestos fibers during any appropriate use, handling, storage or transportation. It is understood that asbestos fibers may be released under other conditions such as demolition, removal, or mishap.

1.2.24.Permissible Exposure Limits (PELs)

1.2.24.1. PEL-Time Weighted Average(TWA)

1.2.24.2. Concentration of asbestos not in excess of 0.1

fibers per cubic centimeter of air (f/cc) as an 8-hour time weighted average (TWA.

1.2.24.3. PEL-Excursion Limit

1.2.24.4. An airborne concentration of asbestos not in excess of 1.0 f/cc of air as averaged over a sampling period of 30 minutes.

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1.2.25.Personal Sampling

Air sampling which is performed to determine asbestos fiber concentrations within the breathing zone of a specific employee, as performed in accordance with 29 CFR 1926.1101.

1.2.26.Private Qualified Person (PQP)

That qualified person hired by the Contractor to perform the herein listed tasks. Refer to supplement 18WG 02 82 00.00 30.

1.2.27.Qualified Person (QP)

Refer to supplement 18WG 02 82 00.00 30.

1.2.28.TEM

Refers to Transmission Electron Microscopy.

1.2.29.Time Weighted Average (TWA)

The TWA is an 8-hour time weighted average airborne concentration of asbestos fibers.

1.2.30.Transite

A generic name for asbestos cement wallboard and pipe.

1.2.31.Wetting Agent

A chemical added to water to reduce the water's surface tension thereby increasing the water's ability to soak into the material to which it is applied. An equivalent wetting agent must have a surface tension of at most 2.9 Pa 0.00042 psi.

1.2.32.Worker

Individuals other than the Competent Person or the supervisor who performs asbestos work and has completed asbestos worker training required by 29 CFR 1926.1101, to include EPA Model Accreditation Plan (MAP) "Worker" training and accreditation.

1.3. REQUIREMENTS

1.3.1.Description of Work

The work covered by this section includes the handling and control of asbestos containing materials and describes some of the resultant procedures and equipment required to protect workers, the environment and occupants of the building or area, or both, from contact with airborne asbestos fibers. The work also includes the disposal of any asbestos containing materials generated by the work. More specific operational procedures must be outlined in the Asbestos Hazard Abatement Plan called for elsewhere in supplement 18WG 02 82 00.00 30.

1.3.2.Unexpected Discovery of Asbestos

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Notify the Contracting Officer if any previously untested building components suspected to contain asbestos are impacted by the work.

1.3.3.Medical Requirements

Provide medical requirements including but not limited to medical surveillance and medical record keeping as listed in

29 CFR 1926.1101.

1.3.3.1.Medical Examinations

Refer to supplement 18WG 02 82 00.00 30.

1.3.3.2.Medical Records

Refer to supplement 18WG 02 82 00.00 30.

1.3.4.Employee Training

Refer to supplement 18WG 02 82 00.00 30.

1.3.5.Permits and Notifications

Refer to supplement 18WG 02 82 00.00 30.

1.3.6.Environment, Safety and Health Compliance

Refer to supplement 18WG 02 82 00.00 30.

1.3.7.Respiratory Protection Program

Establish and implement a respirator program as required by 29 CFR 1926.1101, and 29 CFR 1926.103. Submit a written description of the program to the Contracting Officer.

Submit a written program manual or operating procedure including methods of compliance with regulatory statutes.

1.3.7.1.Respirator Program Records

Submit records of the respirator program as required by 29 CFR 1926.103 and 29 CFR 1926.1101.

1.3.7.2.Respirator Fit Testing

The Contractor's PQP must conduct a qualitative or quantitative fit test conforming to 29 CFR 1926.103 for each worker required to wear a respirator, and any authorized visitors who enter a regulated area where respirators are required to be worn. A respirator fit test must be performed prior to initially wearing a respirator and every 12 months thereafter. If physical changes develop that will affect the fit, a new fit test must be performed. Functional fit checks must be performed each time a respirator is put on and in accordance with the manufacturer's recommendation.

1.3.7.3.Respirator Selection and Use Requirements

Provide respirators, and ensure that they are used as required by 29 CFR 1926.1101 and in accordance with CGA

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G-7 and the manufacturer's recommendations. Respirators must be approved by the National Institute for Occupational Safety and Health NIOSH, under the provisions of 42 CFR 84, for use in environments containing airborne asbestos fibers. For air-purifying respirators, the particulate filter must be high-efficiency particulate air (HEPA)/(N-,R-,P-100). The initial respirator selection and the decisions regarding the upgrading or downgrading of respirator type must be made by the Contractor's Designated IH based on the measured or anticipated airborne asbestos fiber concentrations to be encountered.

1.3.8.Hazard Communication

Adhere to all parts of 29 CFR 1926.59 and provide the Contracting Officer with a copy of the Safety Data Sheets (SDS) for all Hazardous materials brought to the site.

1.3.9.Asbestos Hazard Abatement Plan

Refer to supplement 18WG 02 82 00.00 30.

1.3.10.Testing Laboratory

Refer to supplement 18WG 02 82 00.00 30.

1.3.11.Landfill Approval

Refer to supplement 18WG 02 82 00.00 30.

1.3.12.Transporter Certification

Refer to supplement 18WG 02 82 00.00 30.

1.3.13.Medical Certification

Refer to supplement 18WG 02 82 00.00 30.

1.4. SUBMITTALS

Refer to supplement 18WG 02 82 00.00 30.

1.5. QUALITY ASSURANCE

1.5.1.Private Qualified Person Documentation

Refer to supplement 18WG 02 82 00.00 30.

1.5.2.Competent Person (CP) Documentation.

Refer to supplement 18WG 02 82 00.00 30.

1.5.3.Worker’s License

Refer to supplement 18WG 02 82 00.00 30.

1.5.4.Contractor's License

Refer to supplement 18WG 02 82 00.00 30.

1.5.5.Air Sampling Results

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1.5.6.Pressure Differential Recordings for Local Exhaust System

Refer to supplement 18WG 02 82 00.00 30.

1.5.7.Preconstruction Conference

Conduct a safety preconstruction conference if required by the contracting office to discuss the details of the Asbestos Hazard Abatement Plan, Accident Prevention Plan (APP) including the AHAs.

1.6. SECURITY

A log book must be kept documenting entry into and out of the regulated area. Entry into regulated areas must only be by personnel authorized by the Contractor and the Contracting Officer. Personnel authorized to enter regulated areas must be trained, medically evaluated, and wear the required personal protective equipment.

1.7. EQUIPMENT

1.7.1.Rental Equipment

Provide a copy of the written notification to the rental company concerning the intended use of the equipment and the possibility of asbestos contamination of the equipment.

2. PART 2 PRODUCTS

2.1. ENCAPSULANTS

Encapsulants must not contain any toxic or hazardous substances as defined in 29 CFR 1926.59 or JEGS, and conform to the following performance requirements. Submit an SDS for all encapsulation products as part of the Asbestos Hazard Abatement Plan (AHAP).

2.2. ENCASEMENT PRODUCTS

Encasement must consist of primary cellular polymer coat, polymer finish coat, and any other finish coat as approved by the Contracting Officer.

2.3. DUCT TAPE

Industrial grade duct tape of appropriate widths suitable for bonding sheet plastic and disposal container.

2.4. DISPOSAL CONTAINERS

Refer to supplement 18WG 02 82 00.00 30.

2.5. SHEET PLASTIC

Sheet plastic must be polyethylene of 0.15 mm 6 mil minimum thickness and must be provided in the largest sheet size necessary to minimize seams. Film must be clear and conform to ASTM D4397, except as specified below

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2.5.1.Flame Resistant

Where a potential for fire exists, flame-resistant sheets must be provided. Film must be frosted and must conform to the requirements of NFPA 701.

2.5.2.Reinforced

Reinforced sheets must be provided where high skin strength is required, such as where it constitutes the only barrier between the regulated area and the outdoor environment. The sheet stock must consist of translucent, nylon-reinforced or woven-polyethylene thread laminated between 2 layers of polyethylene film. Film must meet flame resistant standards of NFPA 701.

2.6. MASTIC REMOVING SOLVENT

Mastic removing solvent must be nonflammable and must not contain methylene chloride, glycol ether, or halogenated hydrocarbons. Solvents used onsite must have a flash point greater than 60 degrees C (140 degrees F).

2.7. LEAK-TIGHT WRAPPING

Two layers of 0.15 mm 6 mil minimum thick polyethylene sheet stock must be used for the containment of removed asbestos-containing components or materials such as large tanks, boilers, insulated pipe segments and other materials. Upon placement of the ACM component or material, each layer must be individually leak-tight sealed with duct tape.

2.8. VIEWING INSPECTION WINDOW

Where feasible, a minimum of one clear, 3 mm 1/8 inch thick, acrylic sheet, 450 by 610 mm 18 by 24 inches, must be installed as a viewing inspection window at eye level on a wall in each containment enclosure. The windows must be sealed leak-tight with industrial grade duct tape.

2.9. WETTING AGENTS

Removal encapsulant (a penetrating encapsulant) must be provided when conducting removal abatement activities that require a longer removal time or are subject to rapid evaporation of amended water. The removal encapsulant must be capable of wetting the ACM and retarding fiber release during disturbance of the ACM greater than or equal to that provided by amended water. Submit specification sheets and SDS for all wetting agents in the Asbestos Hazard Abatement Plan (AHAP).

3. PART 3 EXECUTION

3.1. EQUIPMENT

Provide the Contracting Officer or the Contracting Officer's Representative, with a PDF electronic copy of all documents on CD or DVD. Provide manufacturer's certificate of compliance for all equipment used to contain airborne asbestos fibers.

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3.1.1.Air Monitoring Equipment

The Contractor's PQP must approve air monitoring equipment.

The equipment must include, but must not be limited to:

a. High-volume sampling pumps that can be calibrated and operated at a constant airflow up to 16 liters per minute.

b. Low-volume, battery powered, body-attachable, portable personal pumps that can be calibrated to a constant airflow up to approximately 3.5 liters per minute, and a self-contained rechargeable power pack capable of sustaining the calibrated flow rate for a minimum of 10 hours. The pumps must also be equipped with an automatic flow control unit which must maintain a constant flow, even as filter resistance increases due to accumulation of fiber and debris on the filter surface.

c. Single use standard 25 mm diameter cassette, open face, 0.8 micron pore size, mixed cellulose ester membrane filters and cassettes with 50 mm electrically conductive extension cowl, and shrink bands for personal air sampling.

d. Single use standard 25 mm diameter cassette, open face, 0.45 micron pore size, mixed cellulose ester membrane filters and cassettes with 50 mm electrically conductive cowl, and shrink bands when conducting environmental area sampling using NIOSH NMAM Methods 7400 and 7402,(and the transmission electric microscopy method specified at 40 CFR 763 if required).

e. A flow calibrator capable of calibration to within plus or minus 2 percent of reading over a temperature range of minus 20 to plus 60 degrees C minus 4 to plus 140 degrees F and traceable to a NIST primary standard.

3.1.2.Respirators

Select respirators from those approved by the National Institute for Occupational Safety and Health (NIOSH), Department of Health and Human Services.

3.1.2.1.Respirators for Handling Asbestos

Provide personnel engaged in pre-cleaning, cleanup, handling, of asbestos materials with respiratory protection as indicated in 29 CFR 1926.1101 and 29 CFR 1926.103.

Breathing air must comply with CGA G-7.

3.1.3.Exterior Whole Body Protection

3.1.3.1.Outer Protective Clothing

Provide personnel exposed to asbestos with disposable "non-breathable, whole body outer protective clothing, head coverings, gloves, and foot coverings. Provide disposable plastic or rubber gloves to protect hands. Cloth gloves may be worn inside the plastic or rubber gloves for comfort, but

SECTION 02 82 00 Page 12 must not be used alone. Make sleeves secure at the wrists, make foot coverings secure at the ankles, and make clothing secure at the neck by the use of tape.

3.1.3.2.Work Clothing

Provide cloth work clothes for wear under the outer protective clothing and foot coverings and either dispose of or properly decontaminate them as recommended by the PQP after each use.

3.1.3.3.Personal Decontamination Unit

Provide a temporary, negative pressure unit with a separate decontamination unit with clean room and a shower that complies with 29 CFR 1926.51(f)(4)(ii) through (V) in between for personnel required to wear whole body protective clothing.

HEPA vacuum and remove asbestos contaminated disposable protective clothing while still wearing respirators at the boundary of the asbestos work area and seal in impermeable bags or containers for disposal.

Locate showers between the decontamination locker room and the clean locker room and require that all employees shower before changing into street clothes. Collect used shower water and filter with approved water filtration equipment to remove asbestos contamination.

Wastewater filters must be installed in series with the first stage pore size 20 microns and the second stage pore size of 5 microns. Dispose of filters and residue as asbestos waste. Discharge clean water to the sanitary system.

Dispose of asbestos contaminated work clothing as TYPE I asbestos contaminated waste in accordance with supplement

18WG 02 82 00.00 30.

3.1.3.4.Eye Protection

Provide eye protection that complies with ANSI/ISEA Z87.1 when operations present a potential eye injury hazard.

Provide goggles to personnel engaged in asbestos abatement operations when the use of a full face respirator is not required.

3.1.4.Regulated Areas

All Class I, II, and III asbestos work must be conducted within regulated areas. The regulated area must be demarcated to minimize the number of persons within the area and to protect persons outside the area from exposure to airborne asbestos.

Control access to regulated areas, ensure that only authorized personnel enter, and verify that Contractor required medical surveillance, training and respiratory protection program requirements are met prior to allowing

SECTION 02 82 00 Page 13 entrance.

3.1.5.Load-out Unit

Provide a temporary load-out unit that is adjacent and connected to the regulated area when required. Attach the load-out unit in a leak-tight manner to each regulated area.

3.1.6.Warning Signs and Labels

Refer to supplement 18WG 02 82 00.00 30.

3.1.6.1.Warning Sign

Refer to supplement 18WG 02 82 00.00 30.

3.1.6.2.Warning Labels

Refer to supplement 18WG 02 82 00.00 30.

3.1.7.Local Exhaust System

Provide a local exhaust system in the asbestos control area in accordance with ASSE/SAFE Z9.2 and 29 CFR 1926.1101 that will provide at least four air changes per hour inside of the negative pressure enclosure. Local exhaust equipment must be operated 24-hours per day, until the asbestos control area is removed and must be leak proof to the filter and equipped with HEPA filters. Maintain a minimum pressure differential in the control area of minus 0.51 mm 0.02 inch of water column relative to adjacent, unsealed areas.

Provide continuous 24-hour per day monitoring of the pressure differential with a pressure differential automatic recording instrument. The building ventilation system must not be used as the local exhaust system for the asbestos control area.

Filters on exhaust equipment must conform to ASSE/SAFE Z9.2 and UL 586. Terminate the local exhaust system out of doors and remote from any public access or ventilation system intakes.

3.1.8.Tools

Vacuums must be leak proof to the filter and equipped with HEPA filters. Filters on vacuums must conform to ASSE/SAFE Z9.2 and UL 586. Do not use power tools to remove asbestos containing materials unless the tool is equipped with effective, integral HEPA filtered exhaust ventilation systems.

Remove all residual asbestos from reusable tools prior to storage or reuse. Reusable tools must be thoroughly decontaminated prior to being removed from the regulated areas.

3.1.9.Rental Equipment

If rental equipment is to be used, furnish written notification to the rental agency concerning the intended

SECTION 02 82 00 Page 14 use of the equipment and the possibility of asbestos contamination of the equipment.

3.1.10.Glovebags

Submit written manufacturers proof that glovebags will not break down under expected temperatures and conditions.

3.2. WORK PROCEDURE

Perform asbestos related work in accordance with 29 CFR

1926.1101 and JEGS.

Use wet removal procedures and appropriate encapsulation procedures as listed in the asbestos hazard abatement plan and negative pressure enclosure techniques. Wear and utilize protective equipment as required.

No eating, smoking, drinking, chewing gum, tobacco, or applying cosmetics is permitted in the asbestos work or control areas.

Personnel of other trades not engaged in ACM work must not be exposed at any time to airborne concentrations of asbestos unless all the personnel protection and training provisions of this specification are complied with by the trade personnel.

Seal all roof top penetrations, except plumbing vents, prior to asbestos roofing work. Shut down the building heating, ventilating, and air conditioning system, and cap the openings to the system

Power to the regulated area must be locked-out and tagged in accordance with 29 CFR 1910.147. Disconnect electrical service when wet removal is performed and provide temporary electrical service with verifiable ground fault circuit interrupter (GFCI) protection prior to the use of any water or encapsulant.

All electrical work must be performed by a licensed electrician.

Stop abatement work in the regulated area immediately if the airborne total fiber concentration: (1) equals or exceeds 0.01 f/cc, or the pre-abatement concentration, whichever is greater, outside the regulated area; or (2) equals or exceeds 1.0 f/cc inside the regulated area.

Correct the condition to the satisfaction of the Contracting Officer, including visual inspection and air sampling.

Work must resume only upon notification by the Contracting Officer.

Corrective actions must be documented.

If an asbestos fiber release or spill occurs, stop work immediately, correct the condition to the satisfaction of the Contracting Officer including clearance sampling, prior to resumption of work.

3.3. Building Ventilation System and Critical Barriers

SECTION 02 82 00 Page 15

Building ventilation system supply and return air ducts in a regulated area must be shut down and isolated by lockable switch or other positive means in accordance with 29 CFR 1910.147.

The airtight seals must consist of 2 layers of polyethylene.

Edges to wall, ceiling and floor surfaces must be sealed with industrial grade duct tape.

a) A Competent Person must supervise the work.

b) For indoor work, critical barriers must be placed over all openings to the regulated area.

c) Impermeable dropcloths must be placed on surfaces beneath all removal activity.

3.4. Protection of Existing Work to Remain

Perform work without damage or contamination of adjacent work.

Where such work is damaged or contaminated as verified by the Contracting Officer using visual inspection or sample analysis, it must be restored to its original condition or decontaminated by the Contractor at no expense to the Government as deemed appropriate by the Contracting Officer. This includes inadvertent spill of dirt, dust, or debris in which it is reasonable to conclude that asbestos may exist. When these spills occur, stop work immediately. Then clean up the spill.

When satisfactory visual inspection and air sampling results are obtained from the PQP work may proceed at the discretion of the Contracting Officer.

3.5. Negative Pressure Enclosure

a) Removal of ACM requires the use of a negative pressure enclosure.

b) Block and seal openings in areas where the release of airborne asbestos fibers can be expected. Establish an asbestos negative pressure enclosure with the use of curtains, portable partitions, or other enclosures in order to prevent the escape of asbestos fibers from the contaminated asbestos work area.

c) Negative pressure enclosure development must include protective covering of uncontaminated walls, and ceilings with a continuous membrane of two layers of minimum 0.15 mm 6-mil plastic sheet sealed with tape to prevent water or other damage. Provide two layers of 0.15 mm 6-mil plastic sheet over floors and extend a minimum of 300 mm 12 inches up walls.

d) Seal all joints with tape. Provide local exhaust system in the asbestos control area. Openings will be allowed in enclosures of asbestos control areas for personnel and equipment entry and exit, the supply and exhaust of air for the local exhaust system and the removal of properly containerized asbestos containing materials.

SECTION 02 82 00 Page 16

e) Replace local exhaust system filters as required to maintain the efficiency of the system.

3.6. Glovebag

a) If the construction of a negative pressure enclosure is infeasible, use alternate techniques as indicated in 29 CFR 1926.1101.

b) Establish designated limits for the asbestos regulated area with the use of rope or other continuous barriers, and maintain all other requirements for asbestos control areas.

c) The PQP must conduct personal samples of each worker engaged in asbestos handling (removal, disposal, transport and other associated work) throughout the duration of the project. If the quantity of airborne asbestos fibers monitored at the breathing zone of the workers at any time exceeds background or 0.01 fibers per cubic centimeter whichever is greater, stop work, evacuate personnel in adjacent areas or provide personnel with approved protective equipment at the discretion of the Contracting Officer.

d) This sampling may be duplicated by the Government at the discretion of the Contracting Officer. If the air sampling results obtained by the Government differ from those obtained by the Contractor, the Government will determine which results predominate.

e) If adjacent areas are contaminated as determined by the Contracting Officer, clean the contaminated areas, monitor, and visually inspect the area as specified herein.

3.7. Regulated Area for Class II Removal

3.7.1.Removal of asbestos containing floor tile/mastic, carpet/mastic, sealants, etc. are Class II removal activities. Establish designated limits for the asbestos regulated work area with the use of red barrier tape;

install critical barriers, splash guards and signs, and maintain all other requirements for asbestos control area except local exhaust. Place impermeable dropcloths on surfaces beneath removal activity extending out 3 feet in all directions. A detached decontamination system may be used.

3.7.2.Conduct area monitoring of airborne fibers during the work shift at the designated limits of the asbestos work area and conduct personal samples of each worker engaged in the work. If workers the airborne fiber concentration of the workers or designated limits at any time exceeds background or 0.01 fibers per cubic centimeter, whichever is greater, stop work immediately and correct the situation.

3.7.3.Removal Procedures

3.7.3.1.Wet asbestos material with a fine spray of amended

SECTION 02 82 00 Page 17 water during removal, cutting, or other handling so as to reduce the emission of airborne fibers. Remove material and immediately place in 0.15 mm 6 mil plastic disposal bags. Remove asbestos containing material in a gradual manner, with continuous application of the amended water or wetting agent in such a manner that no asbestos material is disturbed prior to being adequately wetted. Where unusual circumstances prohibit the use of

0.15 mm 6 mil plastic bags, submit an alternate proposal for containment of asbestos fibers to the Contracting Officer for approval.

3.7.3.2. For example, in the case where both piping and

insulation are to be removed, the Contractor may elect to wet the insulation, wrap the pipes and insulation in plastic and remove the pipe by sections. Containerize asbestos containing material while wet. Do not allow asbestos material to accumulate or become dry.

3.7.4.Sealing Contaminated Items Designated for Disposal

3.7.4.1.Remove contaminated architectural, mechanical, and electrical appurtenances such as carpeting, duct work, pipes and fittings, radiators, light fixtures, conduit, panels, and other contaminated items designated for removal by completely coating the items with an asbestos lock-down encapsulant at the demolition site before removing the items from the asbestos control area. These items need not be vacuumed. The asbestos lock-down encapsulant must be tinted a contrasting color and spray-applied by airless method. Thoroughness of sealing operation must be visually gauged by the extent of colored coating on exposed surfaces. Lock-down encapsulants must comply with the performance requirements specified herein.

3.7.5.Exposed Pipe Insulation Edges

3.7.5.1.Contain edges of asbestos insulation to remain that are exposed by a removal operation. Wet and cut the rough ends true and square with sharp tools and then encapsulate the edges with a 6 mm 1/4 inch thick layer of non-asbestos containing insulating cement troweled to a smooth hard finish. When cement is dry, lag the end with a layer of non-asbestos lagging cloth, overlapping the existing ends by at least 100 mm 4 inches. When insulating cement and cloth is an impractical method of sealing a raw edge of asbestos, take appropriate steps to seal the raw edges as approved by the Contracting Officer.

3.8. Methods of Compliance

3.8.1.Mandated Practices

3.8.1.1.The specific abatement techniques and items identified must be detailed in the Contractor's AHAP.

Use the following engineering controls and work practices in all operations, regardless of the levels of

SECTION 02 82 00 Page 18 exposure:

3.8.1.2.Vacuum cleaners equipped with HEPA filters.

Wet methods or wetting agents except where it can be demonstrated that the use of wet methods is unfeasible due to the creation of electrical hazards, equipment malfunction, and in roofing.

3.9. Prompt clean-up and disposal.

3.9.1.Inspection and repair of polyethylene.

Cleaning of equipment and surfaces of containers prior to removing them from the equipment room or area.

3.10. Control Methods

3.10.1.Use the following control methods:

Local exhaust ventilation equipped with HEPA filter;

Enclosure or isolation of processes producing asbestos dust;

Where the feasible engineering and work practice controls are not sufficient to reduce employee exposure to or below the PELs, use them to reduce employee exposure to the lowest levels attainable and must supplement them by the use of respiratory protection.

3.11. Unacceptable Practices

The following work practices must not be used: High-speed abrasive disc saws that are not equipped with point of cut ventilator or enclosures with HEPA filtered exhaust air.

Compressed air used to remove asbestos containing materials, unless the compressed air is used in conjunction with an enclosed ventilation system designed to capture the dust cloud created by the compressed air.

Dry sweeping, shoveling, or other dry clean up.

Employee rotation as a means of reducing employee exposure to asbestos.

3.12. Class I Work Procedures

In addition to requirements of paragraphs MANDATED PRACTICES and CONTROL METHODS, the following engineering controls and work practices must be used:

(a) A Competent Person must supervise the installation and operation of the control methods.

(b) For jobs involving the removal of more than 7.5m (25 feet) or 0.9 m2 (10 square feet) of TSI or surfacing material, place critical barriers over all openings to the regulated area.

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(c) HVAC systems must be isolated in the regulated area by sealing with a double layer of plastic or air-tight rigid covers.

(d) Impermeable dropcloths (0.15 mm/6 mil or greater thickness) must be placed on surfaces beneath all removal activity.

(e) Where a negative exposure assessment has not been provided or where exposure monitoring shows the PEL was exceeded, the regulated area must be ventilated with a HEPA unit and employees must use PPE.

3.12.2.Specific Control Methods for Class I Work

Use Class I work procedures, control methods and removal methods for the following ACM:

(a) Spray Applied Fireproofing

(b) Gypsum Wallboard and Joint Compound

(c) Thermal System Insulation and Mudded Pipe Fittings

(d) Plaster and Textured Ceilings and Walls

(e) Vermiculite

3.13. Negative Pressure Enclosure (NPE) System

(a) The system must provide at least four air changes per hour inside the containment.

(b) The local exhaust unit equipment must be operated 24-hours per day until the containment is removed.

(c) The NPE must be smoke tested for leaks at the beginning of each shift and be sufficient to maintain a minimum pressure differential of minus 0.5 mm 0.02 inch of water column relative to adjacent, unsealed areas.

(d) Pressure differential must be monitored continuously, 24-hours per day, with an automatic manometric recording instrument and Records must be provided daily on the same day collected to the Contracting Officer.

(e) The Contracting Officer must be notified immediately if the pressure differential falls below the prescribed minimum.

(f) The building ventilation system must not be used as the local exhaust system for the regulated area.

(g) The NPE must terminate outdoors unless an alternate arrangement is allowed by the Contracting Officer.

(h) All filters used must be new at the beginning of the project and must be periodically changed as necessary and disposed of as ACM waste.

3.14. Glovebag Systems

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a. Glovebags must be used without modification, smoke-tested for leaks, and completely cover the circumference of pipe or other structures where the work is to be done. Glovebags must be used only once and must not be moved. Glovebags must not be used on surfaces that have temperatures exceeding 66 degrees C 150 degrees F.

b. Prior to disposal, glovebags must be collapsed using a HEPA vacuum. Before beginning the operation, loose and friable material adjacent to the glovebag operation must be wrapped and sealed in 2 layers of plastic or otherwise rendered intact. At least two persons must perform glovebag removal.

c. Asbestos regulated work areas must be established for glovebag abatement. Designated boundary limits for the asbestos work must be established with rope or other continuous barriers and all other requirements for asbestos control areas must be maintained, including area signage and boundary warning tape.

d. Attach HEPA vacuum systems to the bag to prevent collapse during removal of ACM.

e. The negative pressure glove boxes must be fitted with gloved apertures and a bagging outlet and constructed with rigid sides from metal or other material which can withstand the weight of the ACM and water used during removal. A negative pressure must be created in the system using a HEPA filtration system. The box must be smoke tested for leaks prior to each use.

3.15. Mini-Enclosure

a. Mini-containment (small walk-in enclosure)] to accommodate no more than two persons, may be used if the disturbance or removal can be completely contained by the enclosure.

b. The mini-enclosure must be inspected for leaks and smoke tested before each use.

c. Air movement must be directed away from the employee's breathing zone within the mini-enclosure.

3.16. Wrap and Cut Operation

Prior to cutting pipe, the asbestos-containing insulation must be wrapped with polyethylene and securely sealed with duct tape to prevent asbestos becoming airborne as a result of the cutting process. The following steps must be taken: install glovebag, strip back sections to be cut 150 mm/6 inches from point of cut, and cut pipe into manageable sections.

3.17. Class I Removal Method

(a) Class I ACM must be removed using a control method described above. Prepare work area as previously specified.

Establish designated limits for the asbestos regulated work area with the use of red barrier tape, critical barriers, signs, and maintain all other requirements for asbestos control area. Spread one layer of 0.15 mm 6-mil

SECTION 02 82 00 Page 21 seamless plastic sheeting on the floor below the work area.

(b) Remove asbestos containing spray applied fireproofing using a scraper and wet methods and immediately place into 0.15 mm 6-mil thickness disposal bag.

(c) After removal of the material use a wire brush to clean the exposed substrate to remove residual material. Continue wet cleaning until surfaces are free of visible debris.][ Cut manageable sections of gypsum wallboard and joint compound and immediately place into a 0.15 mm 6-mil minimum thickness disposal bag or other approved container.

(d) Make every effort to keep the material from falling to the floor of the work area.

(e) Use a wire brush and wet clean to remove residual material from studs. Continue wet cleaning until the surface is clean of visible material and encapsulate stud walls.][ Remove ACM thermal system insulation and mudded pipe fittings using mechanical means and wet methods and immediately place into 0.15 mm 6-mil thickness disposal bag. Continue wet cleaning until surfaces are free of visible debris.

(f) Remove ACM plaster ceilings or walls using mechanical means and adequately wet methods and immediately place into 0.15 mm 6-mil thickness disposal bag. Make every effort to keep the material from falling to the floor of the work area.

Continue wet cleaning until surfaces are free of visible debris.][ Remove ACM textured ceiling finish using a scraper and wet methods and immediately place into 0.15 mm 6-mil thickness disposal bag.

(g) Floors are considered contaminated from fallen textured ceiling finish. Clean up debris on floor and dispose of [carpet ]as asbestos contaminated material. After removal of the material use a wire brush to clean the exposed [concrete ]ceiling to remove residual material.

(h) Continue wet cleaning until surfaces are free of visible debris. Bag all asbestos debris which has fallen to the floor as asbestos-containing debris. Place all debris in plastic disposal bags of 0.15 mm 6-mil minimum thickness.

Once the material is in the disposal bag, apply additional water as needed to achieve "adequately wet" conditions for NESHAP compliance.

(i) Place bagged asbestos waste under negative pressure with the use of a HEPA vacuum, goose neck and duck tape to seal the bag, wash to remove any visible contamination and place into a second 0.15 mm 6-mil minimum thickness disposal bag.

Containerize asbestos containing waste while wet.

(j) Conduct area monitoring of airborne fibers during the work shift at the designated limits of the asbestos work area and conduct personal samples of each worker engaged in the work. If the quantity of airborne asbestos fibers monitored at the breathing zone of the workers or the

SECTION 02 82 00 Page 22 designated limits at any time exceeds background or 0.01 fibers per cubic centimeter, whichever is greater, stop work, and immediately correct the situation.

3.18. Class II Work Procedures

In addition to the requirements of paragraphs MANDATED PRACTICES and CONTROL METHODS, the following engineering controls and work practices must be used:

(a) A Competent Person must supervise the work.

(b) For indoor work, critical barriers must be placed over all openings to the regulated area.

(c) Impermeable dropcloths must be placed on surfaces beneath all removal activity.

3.19. Specific Control Methods for Class II Work

3.19.1.Vinyl and Asphaltic Flooring Materials and Carpet and Mastic

(b) Establish designated limits for the asbestos regulated work area with the use of red barrier tape, critical barriers, signs, and maintain all other requirements for asbestos control area except local exhaust. A detached decontamination system may be used.

(c) When removing vinyl floor tile and mastic or carpet and mastic which contains ACM, use the following practices.

(A) Remove floor tile, carpet and mastic using adequately wet methods.

(B) Remove floor tiles, carpet, and mastic intact, if possible.

(C) Wetting is not required when floor tiles are heated and removed intact. Do not sand flooring or its backing.

Scrape residual adhesive and backing using wet methods.

Mechanical chipping is prohibited unless performed in a negative pressure enclosure.

(D) Dry sweeping is prohibited. Use vacuums equipped with HEPA filter, disposable dust bag, and metal floor tool to clean floors.

(E) Place debris into a 0.15mm 6-mil minimum thickness disposal bag or other approved container.

(F) Once the material is in the disposal bag, apply additional water as needed to achieve "adequately wet" conditions for NESHAP compliance.

(G) Place bagged asbestos waste under negative pressure with the use of a HEPA vacuum, goose neck and duck tape to seal the bag, wash to remove any visible contamination and place into a second 0.15mm 6-mil minimum thickness disposal bag.

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(H) Containerize asbestos containing waste while wet.

Conduct area monitoring of airborne fibers during the work shift at the designated limits of the asbestos work area and conduct personal samples of each worker engaged in the work.

(I) If workers the airborne fiber concentration of the workers or designated limits at any time exceeds background or 0.01 fibers per cubic centimeter, whichever is greater, stop work immediately and correct the situation.

3.20. Sealants and Mastic

(a) Establish designated limits for the asbestos regulated work area with the use of red barrier tape, critical barriers and signs, and maintain all other requirements for asbestos control area except local exhaust.

(b) Spread 0.15mm 6-mil plastic sheeting on the ground around the perimeter of the work area extending out in all directions.

(c) Using adequately wet methods, carefully remove the ACM sealants and mastics using a scraper of knife blade. As it is removed place the material into a disposal bag. Make every effort to keep the asbestos material from falling to the ground or work area floor below.

(d) Dry sweeping is prohibited. Use vacuums equipped with HEPA filter and disposable dust bag.

(e) Place debris into a 0.15 mm 6-mil minimum thickness disposal bag or other approved container.

(f) Once the material is in the disposal bag, apply additional water as needed to achieve "adequately wet" conditions for NESHAP compliance. Place bagged asbestos waste under negative pressure with the use of a HEPA vacuum, goose neck and duck tape to seal the bag, wash to remove any visible contamination and place into a second 0.15mm 6-mil minimum thickness disposal bag.

(g) Containerize asbestos containing waste while wet.

(h) Follow JEGS instructions for handling ACM waste.

(i) Conduct area monitoring of airborne fibers during the work shift at the designated limits of the asbestos work area and conduct personal samples of each worker engaged in the work. If the airborne fiber concentration of the workers or at designated limits at any time exceeds background or

0.01 fibers per cubic centimeter, whichever is greater, stop work immediately and correct the situation.

3.21. Suspect Fire Doors

Establish designated limits for the asbestos regulated work area with the use of red barrier tape, critical barriers, signs, and maintain all other requirements for asbestos

SECTION 02 82 00 Page 24 control area except local exhaust.

(a) A detached decontamination system may be used.

(b) Spread 0.15 mm 6-mil plastic sheeting on the ground beneath the work area and around the perimeter of the work area extending out in all directions.

(c) Remove door intact from hinges and wrap with 6-mil plastic sheeting.

(d) Inspect the interior areas of the door to determine if ACM is present.

(e) If ACM is not present the door may be disposed of as general construction debris.

(f) If ACM is present place whole door in enclosed container for disposal.

(g) Conduct area monitoring of airborne fibers during the work shift at the designated limits of the asbestos work area and conduct personal samples of each worker engaged in the work.

(h) If the airborne fiber concentration of the workers or designated limits at any time exceeds background or 0.01 fibers per cubic centimeter, whichever is greater, stop work immediately and correct the situation.

3.22. Roofing Materials

Establish designated limits for the asbestos regulated work area with the use of red barrier tape, critical barriers, signs, and maintain all other requirements for asbestos control area except local exhaust. When removing roofing materials which contain ACM as described in 29 CFR 1926.1101 (g)(8)(ii), use the following practices.

Roofing material must be removed in an intact state. Wet methods must be used to remove roofing materials that are not intact, or that will be rendered not intact during removal, unless such wet methods are not feasible or will create safety hazards.

When removing built-up roofs, with asbestos-containing roofing felts and an aggregate surface, using a power roof cutter, all dust resulting from the cutting operations must be collected by a HEPA dust collector, or must be HEPA vacuumed by vacuuming along the cut line. Asbestos-containing roofing material must not be dropped or thrown to the ground, but must be lowered to the ground via covered, dust-tight chute, crane, hoist or other method approved by the Contracting Officer. Any ACM that is not intact must be lowered to the ground as soon as practicable, but not later than the end of the work shift. While the material remains on the roof it must be kept wet or placed in an impermeable waste bag or wrapped in plastic sheeting.

Intact ACM must be lowered to the ground as soon as

SECTION 02 82 00 Page 25 practicable, but not later than the end of the work shift.

Unwrapped material must be transferred to a closed receptacle. Critical barriers must be placed over roof level heating and ventilation air intakes. Conduct area monitoring of airborne fibers during the work shift at the designated limits of the asbestos work area and conduct personal samples…