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020820MSBA Accelerated Repair Program RK Finn/Ryan Road and Leeds Elementary Schools Northampton, Massachusetts 02 08 20 asbestos abatement - roof drain bowl insulation.docx 02 08 20-1 SECTION 02 08 20 ASBESTOS ABATEMENT – ROOF DRAIN BOWL INSULATION BY OWNER PART 1 - GENERAL 1.01 GENERAL PROVISIONS A. Attention is directed to the CONTRACT AND GENERAL CONDITIONS and all Sections within DIVISION 1 - GENERAL REQUIREMENTS, which are hereby made a part of this section of the specifications. B. Equality of material, article, assembly or system other than those named or described in this Section shall be determined in accordance with the provisions of Article IV of the CONTRACT AND GENERAL CONDITIONS. 1.02 RELATED DOCUMENTS AND SECTIONS A. Section 07 53 23 Roofing B. Section 02 08 21.1 Asbestos Inspectional Report – Leeds School C. Section 02 08 21.2 Asbestos Inspectional Report – RK Finn Ryan School 1.03 SCOPE OF WORK FOR RK FINN SCHOOL A. This Section specifies the minimum work practice requirements for the removal, containment, recovery and disposal of asbestos containing roof drain bowl insulation and associated waste generated as a result of selective activities as needed to perform the Work of the Contract. Work includes but is not limited to the following: 1. All work to be the responsibility of the Owner, the scope is shown to allow coordination with the Owner’s contractors. Asbestos Inspection reports are provided for informational and coordination purposes. 2. Remove all roof drain bowl and adjacent pipe insulation, identified in the applicable specification drawings, from above the interior ceiling of the RK Finn School. 3. Use Glove Bags for removal of the asbestos containing thermal system insulation. 4. Conform to the regulatory requirements for Asbestos Glovebag Operations described in 310 CMR 7.15 (9) and throughout 310 CMR 7.15. 5. Coordinate with the General Contractor to ensure adequate protection for all persons and property, and maintenance of weather tight conditions during construction. Methods of protection will be reviewed and accepted by the Architect. MSBA Accelerated Repair Program RK Finn/Ryan Road and Leeds Elementary Schools Northampton, Massachusetts 02 08 20 asbestos abatement - roof drain bowl insulation.docx 02 08 20-2 6. Take precautions and provide all necessary controls required to ensure that pieces, flakes, dust, etc., will not enter other parts of the building or be released to the environment. 7. Perform all work area clean-up as required by this Section. B. The Contractor, or Subcontractor, must have a current Massachusetts DLS Asbestos Contractor's License, and meet other qualification requirements specified herein. C. Contractor is required to remove, contain, recover and dispose of all roof drain bowl insulation and associated waste as called out in these specifications. The Contractor shall provide all services to perform the Work as follows: 1. Isolate work areas daily or as otherwise required with temporary staging and critical barriers as required to completely contain materials within the removal areas. 2. Prepare existing surfaces for removal as specified herein. 3. Remove all roof drain bowl insulation and adjacent pipe insulation within standard glove bags. 4. Recover all debris generated within the glove bags and appropriately package according to applicable regulations. 4. Thoroughly clean each work area prior to the end of each shift. A certified MA Project Monitor will perform final visual inspections to ensure that all debris has been removed prior to breakdown of each work area. 5. Remove all temporary structures as directed by the Engineer. 6. All asbestos containing material / residue generated as a result of the Work shall be removed from the work and shall be properly containerized during transport. The asbestos containing debris shall be considered a Special Waste. D. The following generator information shall be used on all waste stream documents, disposal facility waste profile forms, asbestos disposal facility letters of waste acceptance and Material Shipping Records. 1. Mailing Address - [The Owner] 2. Contact Name and Telephone Number – The Contractor shall be responsible for typing The Owner name and title onto all disposal facility waste profile forms and material shipping records. E. The Owner is the generator and will sign all material shipping records. F. Provide facility letters of initial acceptance for all asbestos containing material, addressed to The Owner. The initial letters, which shall be submitted to The Owner, must identify the contaminated material. MSBA Accelerated Repair Program RK Finn/Ryan Road and Leeds Elementary Schools Northampton, Massachusetts 02 08 20 asbestos abatement - roof drain bowl insulation.docx 02 08 20-3 G. Provide facility letters of final acceptance for all contaminated material, addressed to The Owner, prior to loading and shipment. H. Qualifications of Contractor 1. Contractor performing the Work of this Section (“Contractor”) shall be a Contractor licensed to perform asbestos abatement operations in the Commonwealth of Massachusetts. Contractor shall submit license numbers and proof of licensure. 2. Submit the name and location of at least 3 projects performed by the Contractor, in the Commonwealth of Massachusetts, of a similar size and scope. The scope of work for the projects listed shall demonstrate the Contractor’s ability to perform Selective Demolition/Renovation. I. The Contractor shall possess and maintain throughout the project insurance in the kinds and amounts as stated in General Conditions, and a Certificate including a $1,000,000.00 Excess Liability policy for asbestos abatement. 1.04 JOB CONDITIONS A. The Asbestos Abatement Contractor shall extend full cooperation to the Owner, Architect and Engineer in all matters involving the use of Owner's facilities. At no time shall the Asbestos Abatement Contractor cause, or allow to be caused, conditions that may cause risk or hazard to the general public. The use of the facility's water and electrical utilities by the Asbestos Abatement Contractor shall be coordinated through the Owner and General Contractor in accordance with the Specification. B. Bids shall not be based solely on the information provided. Contractors are required to make their own estimates of the amount of material to be removed, decontaminated, cleaned, and disposed. Bids and cost of the work to be performed shall be based on Contractor's own estimate of the work required. C. Bidders shall confirm all quantities and items during the Pre-Bid walkthrough, including the amount of materials to be removed. The Bidders are responsible to review and confirm all quantities and field conditions, including locations of all ACM and debris, surface area, lengths, widths, cross-sections, thickness, composition of layers, substrate composition, etc., prior to the submission of bids. Neither the Engineer, Architect nor Owner will be responsible for errors or omissions and/or charges for extra work arising from any bidder’s failure to become familiar with the existing conditions of the site conditions, requirements of the work and the results to be produced. By submitting a bid, the bidder further agrees that the descriptions contained herein and on the drawings, (i.e., quantities, descriptions, locations, areas, etc.) are adequate and that the bidder will perform all the work required and produce the required results. No claims for extra payment due to incorrect quantities will be considered. 1.05 TRAINING AND QUALIFICATIONS MSBA Accelerated Repair Program RK Finn/Ryan Road and Leeds Elementary Schools Northampton, Massachusetts 02 08 20 asbestos abatement - roof drain bowl insulation.docx 02 08 20-4 A. Worker Training: All asbestos abatement workers who work on this project shall be provided training, at a minimum, the 32-hour required training for asbestos contractor workers, per 453 CMR 6.00, and maintain current DLS Asbestos Worker licenses. B. Site Supervisor Training and Qualifications: Asbestos Abatement Contractor shall provide at a minimum one Site Supervisor, who shall be the OSHA competent person, and whose responsibilities shall include coordination, safety, security, and execution of all phases of the ACM removal project. The Site Supervisor will not be used as an asbestos removal worker, and will be assigned full-time to the project. The Site Supervisor shall be fully qualified in all aspects of asbestos abatement practices and procedures, and have successfully completed a 40-hour Asbestos Contractor Supervisor training course accredited by the Commonwealth of Massachusetts. The Supervisor shall maintain current DLS Asbestos Supervisor license and have completed at least 3 projects similar in scope to this project. C. CPR/First Aid Training: At least one person who is certified in CPR and Emergency First Aid by an appropriate authority should be on-site at all times. 1.06 REGULATORY SUBMITTALS A. Asbestos Abatement Contractor shall notify the following agencies in appropriate manner and place of impending work, and shall provide evidence that notifications have been or will be made at the pre-construction conference: 1. U. S. Environmental Protection Agency, Region 1 2. Massachusetts Department of Environmental Protection Division of Air and Hazardous Materials 3. Massachusetts Department of Labor Standards Asbestos Control Unit 4. City of Northampton, Board of Health 5. Other state or local agencies as required by law or ordinance These notices shall be sent at least 10 working days in advance of the commencement of the work with copies to the Owner. B. Permits: Asbestos Abatement Contractor shall be responsible for securing all necessary permits for asbestos-related work, including construction/demolition (AQ6), removal, hauling, disposal, fire, materials, usage, or any other permits required to perform the specified work. Asbestos Abatement Contractor shall be responsible for all fees involved in securing permits to perform the work in this Contract. 1.07 SAFETY CONSIDERATIONS MSBA Accelerated Repair Program RK Finn/Ryan Road and Leeds Elementary Schools Northampton, Massachusetts 02 08 20 asbestos abatement - roof drain bowl insulation.docx 02 08 20-5 A. This project is subject to compliance with Public Law 91-596, "Occupational Safety and Health Act of 1970" (OSHA), with respect to all Rules and Regulations pertaining to construction, including Volume 36, Numbers 75 and 105, of the Federal Register, as amended, and as published by the U. S. Department of Labor. B. In addition to any detailed requirements of this Specification, Asbestos Abatement Contractor shall at his own cost and expense comply with all laws, ordinances, rules, and regulations of federal, state, regional, and local authorities regarding handling and storing asbestos waste material. C. Asbestos Abatement Contractor is responsible for using safe procedures to avoid electrical hazards. All extension cords and power tools used within the work area shall be attached to Ground Fault Circuit Interrupters (GFCI). D. Asbestos Abatement Contractor will maintain fire extinguishers (Class A, B, and C) ready for immediate use and distribute them throughout the work area and in and about any flammable temporary structures for the duration of the project. E. Internal combustion engines shall not be operated within the buildings. Gasoline or other flammable liquids shall not be stored in the buildings nor may any flammable liquids be dispensed or handled within the building. F. Asbestos Abatement Contractor is required to either provide their own generator to supply all of their power needs during abatement, or make suitable arrangements with the General Contractor for a source of electrical power. 1.08 SECURITY A. Owner will provide specific access as required during the project to Asbestos Abatement Contractor and personnel assigned to the project. Asbestos Abatement Contractor shall be responsible for the security of the section of the building involved in the abatement project. B. Any person entering or leaving the contained areas must sign Contractor's bound log book and enter the date and time. 1.09 REFERENCES A. The following references are cited as applicable publications: 1. U.S. Environmental Protection Agency CFR Title 40, Part 61, Subparts A and M, National Emission Standards for Hazardous Air Pollutants (NESHAP); Asbestos NESHAP Revision; Final Rule, and 40 CFR Part 763, Subpart G 2. U.S. Department of Labor; Occupational Safety and Health Act of 1970 (Particular attention is drawn to the Asbestos Regulations: 29 CFR Part 1926.1001, and the Respirator Regulations; 29 CFR Part 1910.134 and the Hazard Communication Program, CFR Title 29, Part 1910.1200). MSBA Accelerated Repair Program RK Finn/Ryan Road and Leeds Elementary Schools Northampton, Massachusetts 02 08 20 asbestos abatement - roof drain bowl insulation.docx 02 08 20-6 3. U.S. Department of Transportation regulations, 49 CFR Parts 172 and 173. 4. All Commonwealth of Massachusetts laws, regulations and standards, including the regulations 453 CMR 6.00 "The Removal, Containment or Encapsulation of Asbestos" and 310 CMR 7.15 "Asbestos", 18.00 and 19.00 and MGL Chapter 21E. B. All regulations of these and other governing agencies in their most recent versions are applicable. This Specification refers to many requirements found in these references, but in no way intends to cite or reiterate all provisions therein or elsewhere. 1.10 SUBMITTALS A. The Asbestos Abatement Contractor is required to provide two copies of the following Asbestos Abatement Pre-Job Submittals at the Pre-Construction Conference. These Submittals must be reviewed and approved by the Engineer prior to the commencement of work. 1. Copies of all notifications, permits, applications, licenses, and like documents required by federal, state, or local regulations obtained or submitted in proper fashion. 2. Copies of medical records as required by OSHA or a notarized statement by examining medical doctor that such examinations took place, and when, for each employee to be used on Project. 3. Record of successful respiratory fit test performed by a Competent Person as defined by OSHA, within the previous six months, for each employee to be used on Project. 4. Copies of Contractors Current DLS license and copies of each supervisor's and worker's current DLS license. 5. Certificate of Insurance with Owner and Engineer as additionally insured parties. 6. Proposed respiratory program for employees throughout all phases of the Work, including make, model, and NIOSH approval numbers of respirators to be used. 7. Written description of all procedures, methods, or equipment proposed to be utilized by Asbestos Abatement Contractor that differ from the Specification, including manufacturers' specifications for any equipment not specified for use in the Specification. 8. Proposed electrical safeguards to be implemented, including but not limited to location of transformers, GFCI outlets, lighting, etc., necessary MSBA Accelerated Repair Program RK Finn/Ryan Road and Leeds Elementary Schools Northampton, Massachusetts 02 08 20 asbestos abatement - roof drain bowl insulation.docx 02 08 20-7 to safely perform the Work, including a description of an electrical hazards safety plan for common practices in the work area. 9. A list of all equipment to be used on-site, by make and model, including generator, negative air pressure equipment, HEPA vacuums, water atomizing devices, etc. 10. Chain of command of responsibility at the Work Site, including supervisors, foremen, and competent person, and means for contacting them. 11. Proposed emergency plan and route of egress from work areas in the event of fire or injury, including the name and telephone number of nearest medical assistance center. 12. Asbestos Abatement Contractor's testing laboratory, NIOSH PAT proficiency testing results, and certification in the Commonwealth of Massachusetts. 13. Material Safety Data Sheets on encapsulants, sealers, and any other potentially hazardous materials to be used on the project. 14. Name and address of waste hauler and disposal site. B. The Asbestos Abatement Contractor is required to submit the following documents prior to submitting requisition for final payment: 1. Waste disposal receipts acknowledging disposal of all waste material from the project, indicating delivery date, quantity, and appropriate signature of disposal site's authorized representative. 2. A copy of the daily entry-exit log book. 3. All personal monitoring results as required by OSHA and elsewhere in this Section. 1.11 TEMPORARY SERVICES A. Water, lighting and other utilities, will be provided by the Owner to the extent provided in the Specifications from existing sources where the Contractor's use is not excessive and does not interfere with building's normal use. Where existing utilities of facility are not adequate or cannot be used (such as may be the case of electrical power), the Asbestos Abatement Contractor is responsible for providing alternative sources, the cost of which is to be included in bid price. The use of facility's utilities shall be coordinated through the General Contractor, Engineer and Owner. 1. Water Service MSBA Accelerated Repair Program RK Finn/Ryan Road and Leeds Elementary Schools Northampton, Massachusetts 02 08 20 asbestos abatement - roof drain bowl insulation.docx 02 08 20-8 Existing water service connections will be used where available and permitted by Owner. Where connections are not available, Asbestos Abatement Contractor shall provide tie-ins to existing lines and provide all lines necessary for water distribution with the work performed by a licensed plumber. Asbestos Abatement Contractor shall restore all water utilities to original condition. 2. Electrical Service a. General: Electrical service shall comply with applicable NEMA, NECA, and UL standards and governing regulations for materials and layout of temporary electrical service. b. Temporary Power: Asbestos Abatement Contractor shall provide a generator and all temporary service connections from Contractor supplied power sources as required. c. Ground Fault Protection: Asbestos Abatement Contractor shall provide all receptacle outlets equipped with Ground Fault Circuit Interrupters (GFCI's) and reset button for plug-in connection of equipment. d. Electrical Power Cords: Asbestos Abatement Contractor shall use only graded and grounded extension cords. 3. Lighting Service Asbestos Abatement Contractor shall supply any necessary temporary lighting for all lighting requirements within each work area. All existing lighting within the work area shall be isolated, shut down, and protected by Asbestos Abatement Asbestos Abatement Contractor. PART 2 - MATERIALS 2.01 ABATEMENT MATERIALS AND EQUIPMENT All material and equipment proposed to be used on this project shall be subject to the acceptance of the Engineer. A. Deliver all materials and equipment to the site in the original containers bearing the name of the manufacturer. 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 the operations of the Engineer or the facility. C. Unloading and transfer routes must be approved in advance by the Engineer. MSBA Accelerated Repair Program RK Finn/Ryan Road and Leeds Elementary Schools Northampton, Massachusetts 02 08 20 asbestos abatement - roof drain bowl insulation.docx 02 08 20-9 D. Damaged or deteriorated materials may not be used and must be promptly removed from the premises. E. All materials, tools, and equipment must comply, at a minimum, with this specification, and relevant federal, state, and local codes. 2.02 MATERIALS, TOOLS, AND EQUIPMENT A. Negative Air Machines: Supply the required number of asbestos air filtration units to the site in accordance with these specifications. Such machines are not expected to be used in this work unless glove bags are not selected for removal of roof drain bowl insulation. B. Negative Enclosure Glove Bags 1. Glove Bags: Glove bags shall be 6-mil polyethylene with an equipment pocket in accordance with 453 CMR 6.14(4) and 29 CFR 1926.58 Appendix G. 2. Glove bags will be used in a traditional manner to cover the roof drain bowl insulation and adjacent pipe insulation, and permit manual wet removal of insulation and collection of debris inside the bag. 3. A HEPA vacuum shall be used to maintain negative pressure and to facilitate cleaning of surfaces. Wet wiping shall also be facilitated. C. Respiratory Protection Equipment 1. Air Purifying Respirators: a. Respirator Bodies: Provide half-face or full-face type respirators. Equip full-face respirators with a nose cup or other anti-fogging device as would be appropriate for use in air temperatures less than 32 degrees Fahrenheit. b. Filter Cartridges: Provide, at a minimum, HEPA type filters labeled with NIOSH and MSHA Certification for "Radionuclides, Radon Daughters, Dust, Fumes, Mists including Asbestos- Containing Dusts and Mists" and color coded in accordance with 29 CFR 1910.134. In addition, a chemical cartridge section may be added, if required, for solvents, etc., in use. In this case, provide cartridges that have each section of the combination canister labeled with the appropriate color code and NIOSH/MSHA Certification. c. Non-permitted respirators: Do not use single use, disposable or quarter face respirators. D. Wetting Materials: For wetting prior to disturbance of asbestos-containing materials use either amended water or a removal encapsulant. The material MSBA Accelerated Repair Program RK Finn/Ryan Road and Leeds Elementary Schools Northampton, Massachusetts 02 08 20 asbestos abatement - roof drain bowl insulation.docx 02 08 20-10 must be odorless, non-flammable, non-toxic, non-irritating, and non-carcinogenic. It shall be applied as a mist using a low pressure sprayer recommended by the manufacturer. E. Polyethylene Sheet: Provide flame resistant polyethylene film that conforms to requirements set forth by the National Fire Protection Association Standard 701, Small Scale Fire Test for Flame-resistant Textiles and Films. Provide largest size possible to minimize seams, 6.0 mils thick, frosted or black as required by Engineer. F. Duct Tape: Provide duct tape in 2" or 3" widths as indicated, with an adhesive which is formulated to aggressively stick to sheet polyethylene. G. Spray Cement: Provide spray adhesive in aerosol cans which is specifically formulated to stick tenaciously to sheet polyethylene. H. Waste Containers: For asbestos waste, provide 6 mil thick leak-tight polyethylene bags labeled with required EPA, DOT, OSHA labels. Since the waste material may contain sharp edges (broken glazing) or may otherwise puncture polyethylene bags, provide drums or other closed containers for storage, transportation, and disposal. I. Fans and Leaf Blowers: provide leaf blower and one 20" diameter fan for 10,000 square feet of work area volume to be used for aggressive sampling techniques for clearance air testing. These items will not be required for the glove bag removal of limited quantity. J. Filters: Provide cascaded filter units on drain lines from showers or any other water source carrying asbestos contaminated water from the work area. Provide units with disposable filter elements as indicated below. Connect so that discharged water passes primary filter and output of primary filter passes through secondary filter. Primary Filter - Pass particles 20 microns and smaller Secondary Filter - Pass particles 5 microns and smaller. K. Sump Pump: Provide totally submersible waterproof sump pump with integral float switch. Provide unit sized to pump 2 times the flow capacity of all showers or hoses supplying water to the sump, through the filters specified herein when they are loaded to the extent that replacement is required. Provide unit capable of pumping resultant waste stream without damage to pump. Adjust float switch so that a minimum of 3" remains between top of liquid and top of sump pan. L. Warning Signs and Labels: Shall comply with 29 CFR 1926.1101, and all other federal, state, or local codes and regulations. M. Hand Power Tools: Shall be equipped with HEPA-filtered local exhaust ventilation if used to drill, cut into, or otherwise disturb ACM. MSBA Accelerated Repair Program RK Finn/Ryan Road and Leeds Elementary Schools Northampton, Massachusetts 02 08 20 asbestos abatement - roof drain bowl insulation.docx 02 08 20-11 N. Brushes: All brushes shall have nylon bristles. Wire brushes are excluded from use due to their potential to shred asbestos fibers into small fibers. O. Pressure-Differential Recorder: Provide air pressure sensing devices equipped with recorders for continuous monitoring of work area pressure differential. Provide sufficient quantities of chart paper and maintain devices until completion of work. P. Vacuum Cleaning Equipment: Shall be industrial type designed for such use, equipped with High Efficiency Particulate Air (HEPA) filters. Separate dedicated vacuum cleaners shall be used for asbestos work and shall be clearly labeled a to their intended use. No other method will be permitted. PART 3 - EXECUTION 3.01 PRE-ABATEMENT SITE MEETING A. Site Meeting: Prior to performing any abatement work under this Section, the Asbestos Abatement Contractor shall identify at least one Site Supervisor, (or the official Contractor's Representative) for meeting at the site with the Engineer. The purpose of this meeting is to determine the following: 1. The results of estimates performed by the Asbestos Abatement Contractor for agreement on quantities (Unit Price) of materials to be removed and review of the detailed plan and schedule for performing the required work. 2. Location of on-site waste storage areas and waste removal sequencing. 3. Asbestos Abatement Contractor access to the work areas, including approved doors. 4. Availability of water and electrical services and toilet facilities at the work site. 5. Location, size, manner of construction, and use of containment barriers, negative air units/exhausts, and Decontamination Facilities. 3.02 WORK AREA PREPARATIONS A. The Asbestos Abatement Contractor shall prepare each work area as described in this Section. Preparation work shall be performed according to the following general sequence of procedures to insure that proper containment and protection systems are installed prior to any work which could generate airborne asbestos fibers. B. Erect critical barriers, post access restriction signs, seal all openings into the work area, and install Decontamination Facilities and HEPA exhaust systems. MSBA Accelerated Repair Program RK Finn/Ryan Road and Leeds Elementary Schools Northampton, Massachusetts 02 08 20 asbestos abatement - roof drain bowl insulation.docx 02 08 20-12 C. Isolate all facility electrical systems in and traversing the work area, and provide temporary power and lighting systems with ground fault interrupt circuit protection for work areas (and affected non-work areas). D. After each work area has been prepared as specified in this Section, the Asbestos Abatement Contractor’s Supervisor shall verify that the work area has been prepared in compliance with all regulations and this specification, and obtain the inspection of the Engineer. Any corrections to the work area preparation requested by the Engineer shall be made. No asbestos removal work shall begin until the work area preparation is acceptable to the Engineer. 3.03 ISOLATION OF WORK AREAS AND INSTALLATION OF DECONTAMINATION FACILITIES A. Engineering controls, including critical barriers, protective coverings, HEPA- filtered ventilation, personal protective equipment and Decontamination Facilities, shall be required for all asbestos abatement work. B. Work Area Isolation and Protection: 1. The Asbestos Abatement Contractor shall isolate each work area for the duration of work by completely closing and sealing all openings and doorways into the work area including, but not limited to doors and HVAC openings. 2. Open doorways and other large openings which will not be used for public passage during work, shall be sealed airtight with temporary barriers or seals. C. Decontamination Facility (DF): 1. The Asbestos Abatement Contractor shall erect a remote DF to serve each removal work area. The facility will consist of three separate, adjacent rooms adjoined via air locks as previously described. DF locations shall be acceptable to Owner and Engineer. 2. Decontamination Facilities shall be maintained under negative pressure relative to clean areas by use of exhaust system(s) as described in this Section. D. Ensure that barriers and polyethylene sheeting are effectively sealed and taped at all times, and that the Shower Room floor is completely watertight. E. Warning Signs: The Asbestos Abatement Contractor shall post warning signs in English (or other language as necessary to communicate with workers and visitors) meeting the requirements of OSHA 29 CFR 1926.1101 at the outside doorway to the remote DF. F. Access Restrictions: In all cases, non-emergency access between contaminated and non-contaminated areas shall only be through the Decontamination Facility. MSBA Accelerated Repair Program RK Finn/Ryan Road and Leeds Elementary Schools Northampton, Massachusetts 02 08 20 asbestos abatement - roof drain bowl insulation.docx 02 08 20-13 3.04 ASBESTOS ROOF DRAIN BOWL INSULATION REMOVAL A. This section pertains to the removal of asbestos roof drain bowl insulation. The insulation shall be removed by the Asbestos Abatement Contractor. B. Install warning tape and other necessary physical barriers adjacent to and/or below the work area inside the building to prevent accidental injury from falling objects and establish a regulated work zone. C. Place 6-mil polyethylene sheeting on the floor a minimum of 15 feet out from the point below the roof drain bowl on the interior of the building. D. Place / securely attach a 6-mil polyethylene glove bag around the roof drain bowl and adjacent pipe to facilitate removal, by wet scraping, of insulation within the bag, E. Maintain equipment in the immediate work area including, but not limited to, water source and HEPA vacuums. F. Workers shall wear disposable protective suits, respirators and additional personal protective equipment as needed during all abatement procedures. G. Follow procedures as described below for removal of roof drain bowl insulation: 1. Selectively remove roof drain bowl insulation using manual wet methods in a way which avoids the creation of air emissions and permits collection of debris within the bag. 2. Thoroughly wet wipe and/or HEPA vacuum the work surface to ensure all loose insulation is removed from the component. 3. Package all waste material for legal and proper disposal. Refer to section for 3.09 of this section for additional information. H. Perform air monitoring as describe in section 3.11 of this section. I. Where removal of roof drain bowl insulation cannot be performed as described above, the Contractor shall, at no additional cost, perform abatement of asbestos-containing materials using full containment with negative air and decontamination facilities. 3.05 FINAL VISUAL INSPECTION AND WORK AREA CLEARANCE A. After a thorough cleaning of the workspace, and if a high degree of cleanliness has been achieved, the Contractor shall notify the Engineer / Project Monitor that the workspace is ready for inspection and final testing. The Owner’s Project Monitor with the assistance of the Contractor shall then visually inspect the workspace for the detection of any visible asbestos dust, residue or contamination. If the visual inspection reveals dust, residue or other signs of MSBA Accelerated Repair Program RK Finn/Ryan Road and Leeds Elementary Schools Northampton, Massachusetts 02 08 20 asbestos abatement - roof drain bowl insulation.docx 02 08 20-14 contamination, additional cleaning shall be conducted at no additional cost to the Owner. The visual inspection shall be repeated until no dust/debris is visible. B. The work area shall remain closed and sealed airtight, until visual clearance inspection is satisfactorily completed. 3.06 ASBESTOS WASTE DISPOSAL PROCEDURES A. The Asbestos Abatement Contractor shall package, label, and remove all asbestos waste from each work area in accordance with applicable regulations and as specified below. Transportation and disposal of the containerized waste at an approved landfill shall be the responsibility of the Contractor. B. Wastes are defined as all asbestos-containing or potentially contaminated materials or other items that have not been completely cleaned to the satisfaction of the Engineer while inside the work area, and must be removed from the job site. C. Waste Packaging: All waste material shall be promptly placed in 6-mil polyethylene bags as it is generated. A sufficient number of waste bags shall be located in the immediate work area, and in the Equipment (Dirty) Room of the Decontamination Facility. D. Waste Labeling: Warning labels, having waterproof print and permanent adhesive in compliance with OSHA, EPA, NESHAPS, and U.S. Department of Transportation (DOT) requirements, shall be affixed to or printed on the sides of all waste bags or transfer containers. E. Wetting of Waste: A fine water spray shall be used to keep the top layers of waste in containers thoroughly wet at all times. When a waste bag is full, it shall be securely sealed with tape or other secure fastener. F. Waste Container Decontamination and Removal Procedure: The following procedures shall be followed whenever containers or equipment are removed from the work area: 1. The clean room shall be considered a holding area only during the period of active waste transfer for the purpose of the loading of carts or drums. 2. Waste removal shall not occur during worker shift changes or when workers are showering or changing. 3. Workers are to be stationed in each room/area of the Decontamination Facility to transfer the containers and equipment to or from adjacent sections. These workers shall not cross the airlocks into the adjacent areas/rooms until the waste or equipment transfer is finished for that period and the workers have gone through decontamination as required by these specifications. MSBA Accelerated Repair Program RK Finn/Ryan Road and Leeds Elementary Schools Northampton, Massachusetts 02 08 20 asbestos abatement - roof drain bowl insulation.docx 02 08 20-15 4. External surfaces of contaminated containers and equipment shall be cleaned by wet cleaning and/or HEPA vacuuming in the work area before moving such items into the decontamination facility airlock. 5. The containers of waste and the equipment shall be removed from the airlock by workers stationed in the washroom during waste removal operations. 6. Once in the washroom, external surfaces of contaminated containers and equipment shall be cleaned a second time by wet cleaning. 7. The cleaned containers of waste and equipment shall be placed in uncontaminated leak-tight plastic bags (or 6-mil sheeting if physical characteristics necessitate and permit). 8. The clean re-containerized items shall be moved into the airlock for subsequent transfer to the holding area. 9. Re-containerized items and cleaned equipment shall be removed from the airlock to the holding area by workers who have entered from uncontaminated areas with appropriate personal protective equipment. 10. The re-containerized items of waste and cleaned, bagged equipment shall be placed in closed top, watertight plastic carts or drums. 11. The exit from the Decontamination Facility shall be monitored and secured at all times to prevent unauthorized entry. G. Waste Container Storage: Sealed waste bags may be temporarily stored in the work area only until the time for final visual inspection. All waste bags shall be moved into an appropriate asbestos waste dumpster prominently identified and posted with signs, and waste containers shall be covered with polyethylene sheeting or otherwise protected from further contamination. H. Waste Transportation and Disposal Regulations: It is the responsibility of the Contractor to determine and insure that he is complying with: 1) the current waste handling regulations applicable to each work site; and 2) the current regulations for transporting and disposing waste at each ultimate disposal landfill. The Contractor must comply fully with these regulations; and with all U.S. Department of Transportation, State, local, and EPA requirements. I. Where required, the Contractor's waste hauler and disposal contractor shall maintain a valid hazardous waste transporter's permit and identification number; and obtain, complete, and fully comply with any other local hazardous waste manifesting requirements. All waste receipts, signed by landfill operator, shall be submitted to Owner at time of request for final payment. 3.07 AIR MONITORING BY OWNER MSBA Accelerated Repair Program RK Finn/Ryan Road and Leeds Elementary Schools Northampton, Massachusetts 02 08 20 asbestos abatement - roof drain bowl insulation.docx 02 08 20-16 A. This paragraph describes air monitoring carried out by the Owner or their Sub- Consultant to verify that the building beyond the Work Area and the outside environment remain uncontaminated. B. All area sampling/analysis and final air sampling will be performed by the Owner. C. The purpose of the Engineer's air monitoring will be to detect faults in the work area isolation such as contamination of the building outside of the work area with airborne asbestos fibers, failure of filtration or rupture in the negative pressure system, etc. Should any of the above occur, the Asbestos Abatement Contractor shall immediately cease asbestos abatement activities until the fault is corrected. Work shall not recommence until authorized by the Engineer. D. Airborne Fiber Counts: 1. Inside Work Area: Maintain an average airborne fiber concentration in the Work Area of less than 0.5 fibers per cubic centimeter. If the airborne fiber concentration rises above this figure for any sample taken, revise work procedures to lower the airborne fiber concentration. If airborne fiber concentrations exceed 1.0 fiber per cubic centimeter for any period of time and if supplied air respiratory protection is not provided, cease all Work until fiber counts fall below 1.0 fibers per cubic centimeter. 2. Outside Work Area: If any air sample taken outside of the Work Area exceeds the established baseline of 0.01 f/cc, immediately and automatically stop all Work. If this air sample was taken inside the building and outside of the critical barriers around the Work Area, immediately erect new critical barriers as specified herein to isolate the affected area from the balance of the building. After certification of visual inspection in the Work Area remove critical barriers separating the Work Area from the affected area. Final air samples will be taken within the entire area as set forth herein. 3.08 AIR MONITORING BY CONTRACTOR A. The Contractor shall perform air monitoring as required to meet OSHA requirements as outlined in 1926.1101 and 1910.134 for maintenance of Time Weighted Average (TWA) fiber counts and airborne concentrations for types of respiratory protection provided. Engineer will not perform air monitoring to meet these OSHA requirements. B. The sampling person and analysis laboratory performing this work shall be a competent person. C. Numbers and frequencies of person air sampling shall be as required by OSHA regulations but not less than one (1) sample per eight (8) hour work shift during times of all asbestos removal work. D. Results of sample analysis shall be provided to the Engineer within twenty-four (24) hours of collection. MSBA Accelerated Repair Program RK Finn/Ryan Road and Leeds Elementary Schools Northampton, Massachusetts 02 08 20 asbestos abatement - roof drain bowl insulation.docx 02 08 20-17 E. The Contractor shall also provide general surveillance at each work area to observe that the "no visible emissions" requirement of this Specification is enforced at each work area. END OF SECTION 02 08 20