B08_Attach_93_REV_1st_Bank_028214_Asbestos_Remediation_0007.pdf

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PMIS 245589 ASBESTOS REMEDIATION

SECTION 02 82 14A – ASBESTOS REMEDIATION

PART 1 -- GENERAL

1.1 SUMMARY: The work of this Section includes, but is not necessarily limited to, the following:

A. This section covers the furnishes of all labor, materials, facilities, equipment, services, employee training and testing, permits and agreements necessary to perform the work required for the removal of asbestos‐containing materials in accordance with these specifications, the EPA and OSHA regulations, NIOSH recommendations, City of Philadelphia Asbestos Control Regulations and any other applicable Federal, State, and local government regulations and guidelines. Whenever there is a conflict or overlap of the above references, the strongest provisions are applicable.

B. Abatement of asbestos-containing materials is identified in Asbestos Inspection Reports dated October 27, 2021 and March 4, 2022, prepared by Ekhart Environmental Services, LLC. These documents are included in the Appendix.

1. Abatement work to include the following:

a. Inspection, preparation and protection of work areas.

b. Provide as many shifts of labor as will be necessary to complete the job in the amount of time as specified.

c. Proper worker training, respiratory protection and medical examination required.

d. Provide access, support and protection to all authorized visitors and inspectors.

e. Preparation of each regulated work area in accordance with applicable regulations

1) Protection against damage to all surfaces.

2) Non‐contaminated items located in area to be abated will be removed from the work area prior to commencing of abatement work.

3) Decontaminate, protect, and prevent damage to all identified wiring & ductwork as identified by the Contract Drawings to remain.

4) Provide protection to all fire protection systems that will remain active in area and if disconnected during work provide appropriate fire watch of area when not on‐site.

5) The Contractor shall supply Ground Fault Circuit Interrupters for electric service within the abatement area. The Contractor’s retained certified electrician shall be responsible for hooking up GFCI panels with connection and tie‐ins supplied by the contractor. Coordinate all electrical and mechanical disconnects with the Contracting Officer. The Contractor shall be responsible for providing temporary lighting in the areas during all work activities.

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6) The Contractor shall construct barriers, in accordance with applicable regulations, to prevent access to the work area.

f. Removal of asbestos-containing materials in accordance with applicable regulations.

g. Prepare cracks and damaged areas in flat plaster for patching by others. Locations as indicated on the Drawings.

h. Decontamination of work areas for final inspection and testing.

i. Packing, labeling, transporting, and disposal of contaminated material to an EPA approved landfill

2. All work is to be performed in accordance with EPA and OSHA regulations, NIOSH recommendations, City of Philadelphia Asbestos Control Regulations and any other applicable Federal, State, and local government regulations and guidelines. Whenever there is a conflict or overlap of the above, the more stringent regulation applies.

3. The NPS will provide an independent consultant for air monitoring and laboratory services as required during the course of the asbestos remediation work. Contractor shall coordinate abatement work with the air monitoring consultant and NPS.

C. All demolition to specifically access designated asbestos-containing materials will be performed by the Contractor.

1. The removal of carpeting over vinyl asbestos floor tile/mastic will be performed within negative pressure enclosure. Upon approval by the Environmental Consultant, clean demolition debris (i.e., carpeting) may be removed from the work area as non‐hazardous construction and demolition waste. Should vinyl asbestos floor tile or asbestos mastic adhere to the carpeting, the carpet will be disposed of as asbestos-contaminated waste.

D. The work of the Section is included in both the Base Bid and specific Contract Line Items. See Section 01 27 00, “Definition of Contract Line Items” for additional information.

E. The quantities of materials included below are estimates to be utilized in the bidding for this project.

All Bidders/Contractors are required to visit the site and verify existing conditions, materials and quantities included in the scope of work for asbestos removal. No add‐ons will be accepted.

*NOTE: The approximate areas and quantities of plaster to be removed are found on the Contract Drawings. Bidders/Contractors are to utilize these plans to confirm areas/quantities of plaster abatement to be performed as part of this project.

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Space / Area Material Description Estimated Quantity

Friable (Y/N)

Condition (G/F/P)

Debris (Y/N)

Basement Wall & Ceiling Plaster 513 SF Y F/P Y First Floor Wall & Ceiling Plaster 852 SF N G N Second Floor Wall & Ceiling Plaster 529 SF N G N Third Floor Wall & Ceiling Plaster 20 SF Y P N Basement – bottom of FP1 chase, east wall

Debris 20 SF Y P Y

Basement – in two wall conduits that lead to the NW mechanical room

Pipe Insulation Debris

2 SF Y P Y

Basement - northeast room

Pipe Insulation 2 LF Y F N

Throughout 1st floor below carpeting

Black Floor Mastic 5,500 SF N G N

1st floor perimeter walls behind metal lining

Radiator Heat Shield Insulation

540 SF Y F N

1st floor ceiling, ½” holes for toggle bolts

Ceiling Plaster 12 EA N G N

2nd floor east room, south below carpeting

Flooring (black) 600 SF N G N

Throughout 3rd floor 12” Tan Floor Tile/Mastic

3,950 SF N G N

3rd Floor Heat Shield Insulation a/w light fixtures

8 SF Y F N

Roof (deck cuts) Base tar below plastic on concrete

4 Cuts

(4 SF EA)

N G N

Roof Black tar pitch pockets on supports

11-12 EA

(2 SF EA)

N G N

Roof Gray caulk on brick at vents

20 LF

(2 vents)

N G N

Roof Gray caulk a/w crickets

12 LF

(8 EA)

N G N

Roof** White caulk west side perimeter rails

40 LF N G N

Roof Tar on main exhaust vent

1 Unit N G N

SF – Square Feet; EA – Each; LF – Linear Feet; CF – Cubic Feet; a/w – associated with

*NOTE 1: The approximate areas/locations and quantities of plaster and roof materials to be removed are found in the Contract Drawings. Bidders/Contractors are to utilize these drawings to confirm areas/quantities of ACM abatement to be performed as part of this project.

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**NOTE 2: It is estimated that the base bid will include 40 LF. An alternate cost should be provided for an additional 120 LF.

1.2 RELATED WORK

A. Section 01 35 23, “Safety Requirements”

B. Section 02 41 19, “Selective Demolition”

C. Section 02 42 96, “Historic Removals and Dismantling”

D. Section 03 01 30, “Maintenance of Cast-in-Place Concrete”

E. Section 04 03 22, “Historic Brick Masonry Repair”

F. Section 06 16 00, “Sheathing”

G. Section 06 82 00, “Composite Fabrications”

H. Section 07 61 00, “Sheet Metal Roofing”

I. Section 07 62 00, “Flashing and Sheet Metal”

J. Section 09 03 20, “Historic Treatment of Decorative Plaster”

K. Section 09 23 00, “Flat Gypsum Plaster”

1.3 REFERENCE STANDARDS

A. OSHA 29.CFR Part 1926.1101

B. USEPA 40 CFR Part 61

C. City of Philadelphia Asbestos Control Regulations

1.4 DEFINITIONS

A. All terms not defined herein shall have the meaning given in the applicable publications and regulations.

1. “Authorized Visits” Any visits authorized by the Contracting Officer or any representative of a regulatory agency of other agency having jurisdiction over the project.

2. “Accessible” means not behind a solid ceiling, wall, or floor.

3. “Amended Water” is water containing a wetting agent or surfactant.

4. “Asbestos” is a class of magnesium‐silicate minerals that occur in fibrous form. Minerals that are included in this group are chrysotile, crocidolite, amosite, anthophyllite asbestos, INDE-391-186336 02 82 14A - 5 tremolite asbestos, and actinolite asbestos, and any of these minerals that have been chemically treated and/or altered.

5. “Asbestos Containing Materials (ACMs)” are materials comprising of either asbestos mineral type and in an amount greater than 1 percent by weight, whether alone or mixed with other fibrous or non‐fibrous materials.

6. “Asbestos Control Area” is an area where asbestos removal operations are performed which is isolated by physical boundaries to prevent the spread of asbestos dust, fibers, or debris.

7. “Asbestos Fibers” are fibers having an aspect ratio of at least 3:1 and 5 micrometers or longer.

8. “Asbestos Permissible Exposure Limit” is 0.1 fibers (longer than 5 micrometers) per cubic centimeter as an 8‐hour time weighted average.

9. “Area Monitoring” is sampling of asbestos fiber concentrations within the asbestos control area and outside the asbestos control area, which is representative of the airborne concentrations of asbestos fibers, which may reach the breathing zone.

10. “Clean Room” is an uncontaminated room having facilities for storage of employees’ personal clothing and uncontaminated work cloths, materials, and equipment.

11. “Decontamination Area” is a contained area adjacent and connected to the asbestos control area and consisting of an equipment room, shower area, and clean room which is used for decontamination of workers, materials, and equipment.

12. “Encapsulate” is the process whereby an encapsulant is applied to a substrate to control the release of asbestos fibers into the air.

13. “Encapsulant” is a liquid material which can be applied to a substrate which controls the possible release of asbestos fibers from the material either by creating a membrane over the surface (bridging encapsulant) or by penetrating into the materials and binding its components together (penetrating encapsulant).

14. “Equipment Room (Change Room)” is a room located within the decontamination area that is supplied with impermeable 6‐mil polyethylene bags or containers for the disposal of contaminated protecting clothing and equipment.

15. “Fibers” are all fibers regardless of composition as counted in the NIOSH P&CAM 239 or 7400 procedure or asbestos fibers of any size as counted using either scanning or transmission electron microscopy.

16. “Friable Asbestos Material” is material that contains more than 1 percent asbestos by weight, which can be crumbled, pulverized, or reduced to powder by hand pressure when dry.

17. “Glove Bag Technique” is a method with limited applications for removing small amounts of friable asbestos‐containing material from HVAC ducts, short piping runs, valves, joints, elbows, and other non‐planar surfaces in contained (plasticized) work area. The glove bag assembly is a manufactured or fabricated device consisting of a glove bag (6‐mil transparent polyethylene of polyvinyl chloride plastic), two inward projecting long sleeves, an internal

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tool pouch and an attached, labeled receptable for asbestos waste. The glove bag is constructed and installed in such a manner that it surrounds the object or material to be removed and contains all asbestos fibers released during the process. All glove bag removal must be performed in a negative enclosure unless negative air glove bags (approved by OSHA) are utilized. All workers who are permitted to use the glove bag technique must be highly trained, experienced, and skilled in the method as well as properly trained and licensed under applicable regulations.

18. “HEPA Filtered Equipment” is high efficiency particulate air (HEPA) filtered vacuuming equipment with a UL 586 filter system capable of retaining asbestos fibers. Filters shall be

99.97 percent efficiency for retaining 0.3‐micrometer diameter particles.

19. “Non‐Friable Asbestos Material” is material that contains asbestos in which the fibers have been locked in by bonding agent, coating, binder, or other material so that the asbestos is well bound and may not release fibers during any appropriate use, handling, storage, transportation, or processing. Non‐friable material is considered friable during removal unless specific provisions of the regulations are followed. Non‐friable materials such as floor tile and mastic are considered asbestos if any amount of asbestos is found within the material and not the typical <1% by weight rule.

20. “Personal Monitoring” is sampling of asbestos fiber concentrations within the breathing zone of the employee.

21. “Prior Experience” is experience required by the Contractor’s sub‐contractor on asbestos projects or similar nature and scope to ensure capability of performing the asbestos removal in a satisfactory manner. Similarities shall be in areas related to material composition, project size, number of employees and the engineering work practice and personal protection controls required.

22. “Time Weighted Average (TWA)” is an 8‐hour time weighted average of airborne concentrations of fibers (5 micrometers or longer) per cubic centimeter of air.

1.5 SUBMITTALS

A. Asbestos Hazard Abatement Plan (AHAP): At least 30 days prior to the preconstruction conference, submit a written, comprehensive, site-specific plan for asbestos abatement work including, at a minimum, the following:

1. Qualifications of all technicians and supervisory personnel

a. Designated Competent Person: Submit the “Contractor/Supervisor” course completion certificate and most recent certificate for required refresher training. Submit evidence that this person has a minimum of two years on-the-job asbestos abatement experience relevant to OSHA competent person requirements.

b. Project Supervisor(s): Submit the “Contractor/Supervisor” course completion certificate and most recent certificate for required refresher training. Submit evidence that this person has a minimum of two years on-the-job asbestos abatement experience relevant to project supervisor responsibilities.

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c. Asbestos Abatement Workers: Submit training documentation for each employee performing Class I or II asbestos abatement operations Submit documentation on a Contractor-generated form titled “Certificate of Workers Acknowledgement.” Training course completion certificates (initial and most recent update refresher) shall be attached.

2. Qualifications of designated industrial hygienist

3. Qualifications of asbestos transportation personnel and disposal facility

4. Standard Operating Procedures for asbestos abatement including, but not necessarily limited to, the following:

a. Personal protective equipment to be used

b. Location and description of regulated areas including clean and dirty areas, access tunnels, and decontamination unit (clean room, shower room, equipment room, storage areas such as load-out unit)

c. Initial exposure assessment in accordance with 29 CFR 1926.1101.

d. Level of supervision

e. Method of notification of other employees at the work site

f. Abatement method to include containment and control procedures

g. Interface of trades

h. Sequencing of asbestos-related work

i. Storage and disposal procedures and plan

j. Type of wetting agent and asbestos encapsulants

k. Location of local exhaust equipment

l. A detailed description of the method(s) to be employed in order to control the spread of ACM waste and airborne fiber

m. Fire and medical emergency response procedures

n. Security procedures for all regulated areas

B. The procedures contained within the Asbestos Hazard Abatement Plan (AHAP) shall address conditions specific to this project and this project site. Non-specific language from the Contractor’s standard procedures or statutory requirements will not be considered sufficient for purposes of this submittal.

C. Certifications:

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1. Submit City of Philadelphia and Commonwealth of Pennsylvania certifications that all technicians and supervisory personnel are licensed to perform abatement work.

2. Designated Industrial Hygienist: Submit City of Philadelphia Asbestos Project Inspector certification.

3. Disposal Facility:

a. Submit written evidence that landfill or disposal facility is approved for asbestos disposal by the USEPA and state regulatory agencies.

b. Submit copies of signed agreements between the Contractor (including subcontractors and transporters) and the asbestos waste disposal to accept and dispose of all asbestos-containing waste, D. Fit Test Results: Submit fit test results for all personnel assigned to work in removal areas.

E. Statement of Violations on Previous Projects

1. The Contractor and all subcontractors shall submit a statement, signed by an officer of the company, containing a record of any citations issued by Federal, state or local regulatory agencies relating to asbestos activities (including projects, dates and resolutions); a list of penalties incurred through non-compliance with asbestos project specifications, including liquidated damages, overruns in scheduled time limitations and resolutions; and situations in which an asbestos-related contract has been terminated (including projects, dates and reasons for terminations). If there are none, a negative declaration signed by an officer of the company shall be provided.

1.6 CLOSEOUT SUBMITTALS

A. Pressure-monitoring records: Submit continuous record of pressure differential for each monitoring instrument in each designated work area.

1.7 QUALITY ASSURANCE

A. All abatement technicians and supervisory personnel shall be certified by the City of Philadelphia Department of Public Health and the Commonwealth of Pennsylvania Department of Labor and Industry to perform asbestos-related activities. Certifications and licenses must be current and remain so throughout the duration of the project.

B. The Asbestos Abatement Contractor shall employ the following:

1. Designated Competent Person: Qualified in accordance with 29 CFR 1926.32 and 29 CFR 1926.1101, has EPA MAP “Contractor/Supervisor training accreditation, has City of Philadelphia certification/license as a “Contractor/Supervisor” and is experienced in the administration and supervision of asbestos abatement projects, including exposure assessment and monitoring, work practices, abatement methods, protective measures for personnel, setting up and inspecting asbestos abatement work areas, evaluating the integrity of containment barriers, placement and operation of local exhaust systems, ACM generated waste containment and disposal procedures, decontamination unit installation and maintenance requirements, site

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safety and health requirements, notification of other employees onsite, etc. Designated Competent Person shall have a minimum of two years on-the-job asbestos abatement experience relevant to OSHA competent person requirements. The Designated Competent Person shall be responsible for compliance with applicable federal, state and local requirements, the Contractor’s Accident Prevention Plan (APP) and Asbestos Hazard Abatement Plan (AHAP). The Designated Competent Person shall be onsite at all times during the course of abatement.

2. Project and other Supervisors: Shall have EPA MAP “Contractor/Supervisor” training accreditation and EPA/State certification/license. Supervisors shall have a minimum of two years on-the-job asbestos abatement experience relevant to project supervisor responsibilities and other supervisors shall have a minimum of two years on-the-job asbestos abatement experience commensurate with the responsibilities they will have on this project.

3. Asbestos Abatement Workers: Meet the requirements of 29 CFR 1926.1101, 40 CFR 61, Subpart M, and other applicable federal, state and local requirements. Worker training documentation is required for each employee who will perform OSHA Class I and Class II asbestos abatement operations.

4. Designated Industrial Hygienist: The Industrial Hygienist shall have a minimum of two years of experience and shall maintain current medical, fit test and NIOSH 582 competency. The Industrial Hygienist shall be a Philadelphia-licensed Asbestos Project Inspector.

C. The Contractor and transporter(s) of asbestos-containing waste shall meet the DOT requirements of 49 CFR 107 and other applicable state and local requirements.

D. The disposal facility shall meet the requirements of 40 CFR 61 Sections .154 or .155, as required in 40 CFR 61150(b) and other applicable state and local requirements.

1.8 PRECONSTRUCTION CONFERENCE

A. Preconstruction Conference: Prior to starting work, schedule a pre‐construction meeting to be attended by, but not limited to, the Contracting Officer, the Environmental Consultant, the Contractor and such sub‐contractors as the Contracting Officer deems necessary to review and coordinate asbestos abatement work with construction operations. Any deficiencies in the Contractor’s Asbestos Hazard Abatement Plan (AHAP) will be discussed and resolved. The Contractor’s personnel in attendance should include the following:

1. Designated Competent Person

2. Project Supervisor(s)

3. Designated Industrial Hygienist

B. The Asbestos Hazard Abatement Plan (AHAP) described in Article 1.3 must be submitted at least 30 days prior to the Preconstruction Conference. Work onsite will not commence until the Asbestos Hazard Abatement Plan (AHAP) is approved.

1.9 DELIVERY, STORAGE AND HANDLING

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A. Handle and dispose of asbestos-containing and contaminate materials in accordance with applicable city, state and federal regulations.

1.10 PROJECT CONDITIONS

A. General

1. Work will commence throughout all areas of the building upon notice to proceed from the Contracting Officer.

2. The Contractor’s project schedule, including all worker hours/shifts will be submitted to the Contracting Officer for review and approval.

3. The Contractor will be required to coordinate access to the building and the specific work area with the Contracting Officer.

B. Standard Operating Procedures

1. Develop and implement standard operating procedures during abatement work to ensure maximum protection and safeguard from asbestos exposure of the workers, visitors, and the environment. No work shall proceed without prior approval of the Standard Operating Procedures.

2. The Contractor will ensure tight security on a 24‐hour basis from unauthorized entry into the workspace, a polyethylene barrier with a warning sign is not considered suitable security.

Maintain a written log of all persons entering and exiting the work area, including personal protection used and the length of time in the area.

3. The Contractor will provide proper protective clothing and respiratory protection prior to entering the workspace from the outside.

4. The Contractor will perform safe work practices in the workplace, including provisions for inter‐room communications, exclusion of eating, drinking, smoking, or in any way breaking the respiratory protection.

5. The Contractor will provide for proper exit practices from the workspace to be outside through the showering and decontamination facilities.

6. The Contractor will perform removal operations utilizing methodologies which minimize release of fibers.

7. The Contractor will perform the packing, labeling, loading, transporting, and disposing of contaminated material in a way that minimizes exposure and contamination.

8. The Contractor will provide a plan for emergency evacuation for medical or safety (fire and smoke) reasons. This plan will be prepared so that exposure will be minimized.

9. The Contractor will protect against accidents in the workspace, especially from electrical shocks, slippery surfaces, entanglements in loose hoses, heat stress and work in confined spaces.

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10. The bidder/contractor will provide personnel monitoring for exposure in accordance with OSHA regulations during the work.

C. Notifications, Permits, Warning Signs, Labels and Posters

1. Provide the required notification to all federal, state, and local regulatory bodies 10 working days prior to the start of work. All regulatory notifications shall be made in the appropriate format as required by each agency. Secure all the permits and variances required for the work.

2. Erect warning signs around the workspace and at every point of potential entry from the outside. All signs must conform to OSHA regulations.

3. Provide the required labels for all plastic bags and al drums utilized to transport contaminated material to the landfill. Note: EPA requirements for labeling bags with generator of waste an Provide any other signs, labels, warnings, and posted instructions that are necessary to protect, inform and warn people of the hazard from asbestos exposure. Post in an obvious and convenient place for the workers a copy of the latest applicable federal, state, and local regulations.

D. Emergency Precautions

1. Establish emergency and fire exits from the work area. All emergency exits shall be equipped with two (2) full sets of protective clothing and respirators at all times.

2. When an injury occurs, stop work, and implement fiber reduction techniques until the injured person has been removed from the work area.

E. Authority to Stop Work

1. The Contracting Officer shall have the authority to stop the abatement work at any time he/she determines either personally or through the services of the Environmental Consultant that conditions are not within the specifications and applicable regulations. The stoppage of work shall continue until conditions have been corrected and corrective steps have been taken to the satisfaction of the Contracting Officer.

2. Action Levels Inside Work Area (Removal) – 0.05 F/cc (with wet methods). Notify the Contracting Officer when any one air sample result collected inside the work area exceeds

0.05 F/cc, at which time, wet down the work area and initiate clean‐up procedures to reduce the fiber levels inside the work area.

3. Stop work orders may be issued for, but not limited to, the following:

a. Breaks in barriers.

b. Loss of negative air (0.02 inches of water – minimum negative pressure)

c. Leaks to other areas.

d. Fiber concentrations outside the work area, which exceeded 0.010 F/cc, for any one sample.

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F. Protect existing assemblies to remain during asbestos abatement work. Damage to existing assemblies to remain shall be repaired by the Contractor to the satisfaction of and at no additional cost to, the Contracting Officer.

G. The bidder will coordinate his/her operations with the Contracting Officer, Construction Management Representative and/or the Environmental Consultant and shall perform all work with a minimum of interferences to normal building operation. The premises shall be kept clear of materials and equipment at all times. Adequate means of protecting the public shall be provided, including signs, barricades, or other warning devices, as may be required.

PART 2 -- PRODUCTS

2.1 GENERAL

A. Deliver all materials and equipment to the site in the original containers bearing the name of the manufacturer, and details for proper storage and usage.

B. All materials or equipment delivered to the site shall be unloaded, temporarily stored, and transferred to the work area in a manner, which shall not interfere with building operations or occupants.

C. Unloading and temporary storage sites, and transfer routes, must be approved in advance by the Contracting Officer.

D. Damaged or deteriorated materials may not be used and must be promptly removed from the premises. Materials which become contaminated with asbestos‐containing material shall be packaged and legally disposed of in an approved, secure landfill.

2.2 MATERIALS

A. The list of required materials shall include, but is not necessarily limited to the following:

1. Disposable Clothing Manufactured of “Tyvek” by DuPont, or approval equal. Clothing shall consist of coverall, head cover and foot cover. Maintain a supply of personal protective equipment sufficient for workers and all authorized visitors.

a. Minimum thickness: 5.9 mils (ASTM D 1777)

b. Basis weight: 12 oz/syd (ASTM D 3776)

c. Flammability: Class 1 (16 CFR 1610)

2. Saturant Mixtures for material saturation and fiber control shall be prepared in the following ratios of water and surfactant, or a commercially prepared equivalent:

a. 1 fluid ounce of surfactant to 5 gallons of water

b. Surfactant: 50% polyoxyethylene ester; 50% polyoxyethylene ether

3. Fire rated 6-mil polyethylene film for walls, floors, ceilings, etc., as required by City of Philadelphia Asbestos Control Regulations

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4. Clear polyethylene bags (with caution labels) six‐mil (0.006”) minimum for disposal of asbestos-contaminated materials

5. Duct tape (minimum 2” width) shall be fabric type. Paper masking tape will not be permitted.

6. Plywood for critical barrier requirements shall be new and of fire‐retardant grade.

7. Spray adhesive for sealing poly to poly.

2.3 TOOLS AND EQUIPMENT

A. Airless Sprayer: An airless sprayer, suitable for application of encapsulating material, shall be used.

B. Negative Air Filtration Unit: Asbestos filtration devices shall utilize high efficiency particulate air (HEPA) filtration systems. 99.97% efficient to 0.3‐micrometer diameter of mono‐disperse particles.

The negative air filtration unit shall be equipped with the following.

1. Magnehelic gauge to monitor the HEPA units’ air pressure difference across the filters and be able to interpret magnehelic readings to cfm.

2. Automatic shut off for filter failure or filter absence.

3. Alarm with flashing red light for unit shutdown.

4. Amber flashing warning light for filter loading.

5. Must have safety system that prevents unit from being operated with the HEPA filter in backwards.

C. Vacuum Equipment: All vacuum equipment implemented in the work area, shall utilize HEPA filtration systems. 99.97% efficient to 0.3‐micrometer diameter of mono‐disperse particles.

D. Water Sprayer: The water sprayer shall be an airless or other low‐pressure sprayer for amended water application.

E. Other Tools and Equipment: The Contractor shall provide other suitable tools for the stripping, removal, and disposal activities including but not limited to handheld scrapers, sponges, rounded edge shovels, brooms, and carts.

E. Grounded fault circuit interrupters: To protect electrical cords and connections within the enclosed removal area.

2.4 RESPIRATORY SYSTEMS

A. Minimum respiratory protection required shall conform to OSHA, including amendments. Note:

Personnel who have passed a quantitative or qualitative fit test can only use half‐masks and/or full‐ face masks. Provide copies of those fit test results to the Contracting Officer. Single use, disposable respirators will not be permitted.

B. Provide all workers and authorized visits with NIOSH approved respirators complying with OSHA regulations and sufficient quantity of disposable filters, so that workers can change filters during the

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workday. Store the respirator filters at the job site in the change room and protect them from exposure to asbestos prior to their use.

1. Workers shall always wear a respirator properly fitted on the face in the work area.

2. Instruct and train workers in proper respirator use.

2.5 ELECTRICAL SAFETY

A. All electrical work require by this section shall be performed by a licensed electrician in compliance with the most recent edition of the National Electric Code, unless otherwise provided by OSHA regulations. All electricity within the work area will be deactivated. A GFCI panel will be constructed at a designated location outside of the work area. This panel will be utilized to supply electrical power to the regulated work area.

B. The non‐current carrying metal parts of fixed, portable, and plug‐connected equipment shall be grounded. Portable tools and appliances protected by an approved system of double insulation need not be grounded. All light and power circuits in asbestos removal areas shall be ground fault protected.

C. Extension cords, shall be the 3‐wire type, shall be protected from damage, and shall not be fastened with staples, hung from nails, or suspended from wires. Splices shall have soldered wire connections with insulation equal to the cable. Worn or frayed cords shall not be used.

D. Temporary safe lighting equipment shall be provided. Exposed bulbs shall be guarded to prevent accidental contact. Temporary wiring shall be properly insulated and substantially supported.

Circuits shall be properly designed and fused. All temporary lighting inside of asbestos removal areas shall be waterproofed.

2.6 PROTECTION CLOTHING

A. Provide to all workers, foreman, superintendents, authorized visitors, and inspectors protective disposable clothing consisting of full body coveralls, head covers and gloves.

B. Provide eye protection and hard hats as required by job conditions and safety regulations.

C. All disposable protective clothing shall be discarded and disposed of as asbestos waste every time the wearer exists from the workspace to the outside through the decontamination facilities.

2.7 ENCLOSURES, SHOWERS AND TOILETS FOR REMOVAL (As Required)

A. For each abatement area, provide a decontamination facility constructed in full accordance with City of Philadelphia’s Asbestos Control Regulations.

B. The Decontamination Enclosure System for workers and visitors shall consist of three rooms divided by three air locks as follows: Clean Room at entrance followed by Shower Room followed by an Equipment Room leading to the Work Area. The Decontamination Enclosure shall be of sufficient size to accommodate storage of materials, equipment, etc. while allowing for the passage of laborers and their equipment between clean and contaminated areas.

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C. An airlock system, utilizing curtained doorways, is a system permitting ingress and egress without permitting air movement between rooms/areas. Each curtained doorway shall be constructed by placing three overlapping sheets of plastic over a framed doorway, securing each along the top of the doorway. The first and third sheet shall be secured on one side of the doorway and the middle sheet shall be secured on the other side of the doorway.

D. Provide hooks or lockers for storage of street clothes of workers in the clean room. Provide in the same room uncontaminated disposable protective clothing and gear prior to entering into the contaminated area and to dress into street clothing after they have showered and dried in the shower room as they exist from the contaminated area.

E. Provide shower room facilities with hot and cold running water so arranged as to provide thorough showering of workers and visitors as they exit from the contaminated area. The Contractor shall install an electrical hot water heater to supply the hot water to the shower. Connect the shower water drains to a leak‐proof pump and a commercially manufactured filtering system consisting of filters in series, including a 5.0‐micron final filter, and an adequately sized pump. Discharge from this system shall then be connected to a conventional plumbing at a location, which has been pre‐ approved by the Contracting Officer. Used water filters shall be packaged and disposed of as asbestos waste. Make provisions to prevent any contaminated run‐off from the shower room.

F. Provide the Equipment Room with storage for contaminated clothing and equipment. In this room, workers and visitors dispose of their disposable protective clothing except the respirator as they prepare to enter the shower room. All contaminated footwear and clothing must remain inside the equipment room.

F. Waste Decontamination Facilities may also be required to allow more efficient removal of waste from the abatement areas. These facilities shall consist of two adjacent rooms (the Clean Room and the Washroom). A solid, hinged door with a padlock shall be installed outside the entrance to the Clean Room. The Clean Room will be separated from the Washroom, and the Washroom separated from the Work Area, by airlocks. Construction requirements will be the same as those for the Worker’s Decontamination Facility. A water hose equipped with a variable‐spray nozzle and leak‐ proof tub shall be installed in the Washroom. The tub shall be drained by a pump system consisting of filters in series, including a 5.0‐micron final filter. The Waste Decontamination Facility may not be used by the workers to enter or exit the abatement area during normal operations; it may, however, be considered an emergency or fire exit.

PART 3 - EXECUTION

3.1 GENERAL

A. Scheduling

1. The Contractor shall coordinate all scheduling with the Contracting Officer as specified herein. A schedule of work including sequencing of asbestos removal shall be submitted to the Contracting Officer for review by the Environmental Consultant.

B. Pre-Asbestos Abatement Preparations

1. Obtain the approval of the Environmental Consultant prior to the start of the work for the following: enclosures, showers, personnel protection, exposure control systems, personnel

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training and testing, removable decontamination, and storage, sealing off and securing the work area and equipment for inter‐room communications. These shall conform to the approved Asbestos Hazard Abatement Plan (AHAP).

C. Monitoring, Testing and Inspection

1. The Environmental Consultant will perform monitoring throughout the work activities and provide final air testing at the completion of each phase/work area in accordance with the City of Philadelphia Asbestos Control Regulations.

2. The Environmental Consultant will monitor the performance and execution of the work throughout the abatement process. The monitoring program will include the collection of daily air sampling performed during all abatement operations both inside and outside each designated work area.

3. Air monitoring tests for baseline background levels, as required by City of Philadelphia Asbestos Control Regulations, will be performed by the Environmental Consultant prior to the initiation of the abatement project. Baseline background sampling shall be done using NIOSH 7400 A Rules or equivalent outside but immediately adjacent to work barriers prior to start of removal work.

4. On a daily basis, samples will be taken during the removal process according to the following:

a. Volume of sample determined by Quantification Limit, microscopic field, assuming 10 fibers/100 fields, filter area (effective collection area). Sampling shall be performed utilizing high volume using NIOSH Method 7400 A Rules, or equivalent.

b. If ambient air fiber levels outside the work area are greater than 0.010 f/cc, work shall be halted until source of contamination is found and corrected.

c. Work area monitoring (during removal) Allowable limits:

1) Outside work area – 0.01 f/cc ambient air monitoring

2) Inside work area – 0.05 f/cc ambient air monitoring

3) Clearance level – (PCM) 0.010 f/cc for each sample/(TEM) 0.00554 As/cc

D. Final Inspection and Testing

1. After thorough cleaning of each regulated work area, the Environmental Consultant shall determine the workspace is ready for inspection and final testing. The Environmental Consultant will visually inspect the workspace for the detection of any visible dust, debris, or contamination. If the visual inspection does not reveal any dust, debris or other signs of contamination, the work shall be considered complete, and the contractor will be instructed to encapsulate the area prior to final air testing.

2. The final testing shall take place under active agitation of the air in the workspace with fans running, leaf blowers operating, and any other means found suitable by the Environmental Consultant during the final testing. Final air testing will incorporate both Phase Contrast

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Microscopy (PCM) and Transmission Electron Microscopy (TEM) in accordance with City of Philadelphia Asbestos Control Regulations.

3. The Contractor shall not perform any containment dismantling operations until the Contractor has received confirmation that the final tests have passed from the Environmental Consultant.

4. Upon successful clearance testing, the plastic enclosure shall be removed, the exposed surfaces thoroughly wet cleaned and /or HEPA vacuumed, and the plastic, tape and material from equipment room and shower room bagged and disposed of as asbestos waste. A final check will be carried out by the Environmental Consultant to ensure that no dust or debris remains on surfaces as the result of dismantling operations.

E. Contractor Responsibility

1. Assume full responsibility and liability for the compliance with all applicable Federal, State, and local regulations pertaining to work practices, hauling and disposal of ACM and the protection of workers and visitors to the site, and persons occupying areas and adjacent to the site. The Contractor shall hold the Contracting Officer, Construction Management Representative (CMR) and Environmental Consultant harmless for failure to comply with any applicable work, hauling, disposal, safety, health, or other regulation on the part of himself/herself, his/her employees, or his/her subcontractors.

F. General Applicability of Codes, Regulations, Laws and Standards

1. Except to the extent the more explicit or more stringent requirements are written directly into the contract documents, all applicable codes, regulations, laws, and standards have the same force and effect (and are made a part of the contract documents by reference) as if copied directly into the contract documents, or as if published copies are bound herewith.

2.8 PERSONAL PROTECTIOJN AND DECONTAMINATION

A. Provide all personnel throughout the abatement process with the specified protection clothing and gear. Ensure that all personnel entering and leaving the workspace implement the following procedures:

1. Entering from the outside: Change from street clothes into protective clothing and wear clean protective gear. Go through shower room into Equipment Room, pick up equipment and tools and enter the work area.

2. Existing from the work area: Dispose of all protective clothing into labeled plastic bags for asbestos waste. Do not take off the respirator, but still wearing the respirator, enter the shower and shower thoroughly. Remove respirator and wash and wipe thoroughly to decontaminate the respirator. After drying, enter the Clean Room; store the decontaminated respirator in the assigned space and dress into street clothes.

3. Post written procedures in the workplace and train all personnel on the procedures for the evacuation of the injured and handling of potential fires. Provide aid to a seriously injured worker without delay for decontamination during evacuations and fire procedures. Exceptions to normal, routine, exiting procedures shall be made for emergencies such as, but not limited to, serious personal injury and fires.

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4. The Contractor shall instruct all employees and workers in the proper care of their personally issued respiratory equipment, including daily maintenance, sanitizing procedures, etc.

5. Contractor’s personnel shall inspect all respiratory equipment at the beginning of each work period, including breaks and lunch periods.

2.9 EXPOSURE CONTROLS

A. Provide air filtration system in the work area to maintain a negative pressure of 0.02 inches of water. If negative air pressure of 0.02 inches is lost, work shall be halted until negative air pressure is restored.

B. Provide local exhaust ventilation in the work area to maintain a negative pressure in the work area relative to the adjacent non‐work areas. The exhaust units must be equipped with a High Efficiency Particulate Air (HEPA) filter capable of retaining 99.97% of 0.3‐micrometer diameter of mono‐ disperse particles. This filter must comply with ANSI Z9.2 standards. The fan for each unit should be sized to draw a desired airflow through the filters in the unit at a specified pressure drop. The unit should have an air handling capacity of 1,000 to 2,000 ft/min. (under “Clean” filter conditions).

The system should be capable of delivering a minimum of one air change every 15 minutes. Fifteen

(15) minute air changes are mandatory for removal. All exhaust units shall be vented outside the building.

C. The air filtration system should be tested before any asbestos‐containing material is wetted or removed. After the work area has been prepared, the decontamination facility set up, and the exhaust units installed, the units should be started (one at a time). Observe the barriers and plastic sheeting. The plastic curtains of the decontamination facility should move slightly in toward the work area.

D. The exhaust units should be started just before beginning removal (i.e., before any asbestos-containing material is disturbed). After removal has begun, the units should run continuously to maintain a constant negative pressure until decontamination of the work area is complete. The units shall not be turned off at the end of the work shift or when removal operations temporarily stop.

E. Employees should start removing asbestos material at locations farthest from the exhaust units and work towards them. If an electric power failure occurs, removal must stop and should not resume until power is restored and exhaust units are operating again.

F. The HEPA ventilation system shall operate on a 24‐hour basis throughout the abatement process, including work area preparation through clearance testing. The ventilation system shall be in accordance with EPA recommendations included in the “Guidance for Controlling Friable Asbestos

– Containing Materials in Buildings.” For wet removal, negative air filtration units must be able to provide a minimum of four (4) air changes/hour.

G. In a multi‐room abatement project, the abatement contractor will provide sufficient negative air filtration units to create a stream of air away from the faces of the workers in each room and in such a way as to not damage or compromise the integrity of the plastic isolation barriers.

H. Provide an automatic recording instrument to monitor the negative pressure differential in a representative location. The instrument shall continuously generate a permanent record, which shall be submitted to the Contracting Officer prior to final acceptance.

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3.3 SPECIFIC ABATEMENT PLAN

A. Glove Bag Removal Method: The use of glove bags as described in Appendix G of OSHA Asbestos Regulations 29 CFR 1926.1101 will be allowed upon approval and in accordance with City of Philadelphia Asbestos Control Regulations on a case‐by‐case basis for the removal of designated horizontal asbestos containing pipe and fitting insulation. Glove bag operations shall be conducted in conformance with the work practices set forth in 29 CFR 1926.1101. Glove bag removal must be performed within a secondary containment. The following work practices are required:

1. The person(s) performing the removal operation shall wear respiratory protection and Tyvek protective clothing in accordance with applicable regulations.

2. All moveable objects shall be removed from the work area. Non‐movable objects remaining in work area shall be covered completely with six mil plastic sheeting, securely taped, or otherwise secured in place, so as to prevent their contamination.

3. Each designated work area will be isolated within a tent enclosure or utilizing critical barriers to establish a secondary containment, as applicable. HEPA filtration systems will be installed to ensure a minimum of four air changes per hour during abatement operations. A minimum of one layer of 6‐mil plastic sheeting drop poly will be placed on the floor surface below the removal location(s). A decontamination system will be established at the entrance to each regulated work area.

4. A remote 3‐stage decontamination system will be utilized for all glovebag removal.

5. Glove bags shall be installed so that they completely cover the pipe in such a manner as to prevent leakage or air or asbestos fibers. The arms, open edges, and other openings in the glove bag shall be completely sealed against leakage with duct tape.

6. Asbestos material shall be wet prior to its removal and maintained in a wet condition inside the glove bag.

7. Clean surfaces inside the glove bag from which asbestos has been removed and the upper portions of the glove bag itself by wet wiping until no traces of asbestos-containing materials can be seen.

8. Removed material shall be isolated in the bottom of the glove bag by twisting the bag so as to form a constriction in the middle. The closure formed by the constriction shall then be taped around with duct tape or equivalent material. Prior to twisting the bag, excess air in the bag shall be exhausted with a HEPA vacuum.

9. The glove bag and its contents shall be removed from the pipe, containerized in accordance with 453 CMR 6.14 (2) (c) and disposed of in accordance with 453 CMR 6.14 (2) (g).

10. All glove bags will be packaged in two 6-mil plastic asbestos waste bags (clear) and sealed for transport. Drums are not required if a dumpster is dedicated for asbestos waste removal.

11. Proceed with Final Inspection and Testing as specified in Article 3.1.D.

B. Enclosure Removal

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1. Construct critical barriers on all windows, doors, outlets, fixtures, and openings. Critical barriers shall consist of a minimum 2 layers of 6 mil plastic sheeting applied independently.

2. The work area shall be enclosed in 2 layers of 6-mil plastic sheeting on the walls, floors, and ceilings as applicable and required. All plastic sheeting shall be applied in independent layers.

3. Negative air HEPA ventilation system shall be installed and operated in accordance with ANSI Z9.2. AFDs shall be in sufficient quantity to provide a minimum of 4 air exchanges per hour and a pressure differential of 0.02 inches of water. The local exhaust system shall be operated continuously, 24 hours a day, until the enclosure of the asbestos control area is removed. All negative air will be exhausted outdoors.