technical abatement specifications for … · bhe environmental, inc. defining environmental...

PN 0241.006 August 2007

TECHNICAL ABATEMENT SPECIFICATIONS FOR THE REMOVAL OF ASBESTOS-CONTAINING MATERIALS FROM

THE POWER HOUSE BUILDING

Prepared for: City of Cincinnati

Metropolitan Sewer District 1600 Gest Street

Cincinnati, Ohio 45204

Prepared by: BHE Environmental, Inc. 11733 Chesterdale Road

Cincinnati, Ohio 45246-4131 513.326.1500

www.bheenvironmental.com

Notice: This report has been prepared by BHE Environmental, Inc., solely for the benefit of its client in accordance with an approved scope of work. BHE assumes no liability for the unauthorized use of this report or the information contained in it by a third party. Copyright © 2007 BHE Environmental, Inc.

BHE Environmental, Inc. Defining Environmental Solutions, Inc.

TABLE OF CONTENTS

1.0 WORK TO BE PERFORMED

1.1 SCOPE OF WORK

1.2 OWNER'S REPRESENTATIVES

1.3 PROJECT SCHEDULE

2.0 GENERAL

2.1 SCOPE OF WORK

2.2 DESCRIPTION OF WORK

2.3 TERMINOLOGY AND DEFINITIONS

2.4 APPLICABLE REFERENCE DOCUMENTS

2.5 EXPOSOSURE ASSESSMENTS AND AIR MONITORING

2.6 SUBMITTALS AND NOTICES

2.7 PERSONAL PROTECTIVE EQUIPMENT

2.8 EQUIPMENT REMOVAL PROCEDURES

2.9 EMERGENCY PRECAUTIONS

2.10 SITE SECURITY

2.11 PARKING

3.0 MATERIALS AND EQUIPMENT

3.1 MATERIALS

3.2 EQUIPMENT

4.0 EXECUTION

4.1 SEQUENCE OF EXECUTION

4.2 CLASS II ASBESTOS OPERATIONS —ENGINEERING CONTROLS AND WORK PRACTICES (FOR REMOVAL OF ASBESTOS-CONTAINING WINDOW CAULKING ANDTRANSITE)

4.3 PREPARATION

4.4 ASBESTOS REMOVAL PROCEDURES

4.5 REMOVAL AND DISPOSAL OF ASBESTOS CONTAMINATED WASTE


4.6 CLEANUP AND DECONTAMINATION OF THE WORK AREA

4.7 DETERMING ABATEMENT COMPLETION

4.8 SEALANT APPLICATION FOR LOCK DOWN

4.9 FINAL AIR MONITORING

4.10 REESTABLISHMENT OF OBJECTS AND SYSTEMS

TABLES

1. Inventory of Asbestos-Containing Materials Specified for Removal

2. Confirmatory Bulk Sample Analytical Results

FIGURES

1. Identified ACM Specified for Removal on the Basement Floor Plan

2. Identified ACM Specified for Removal on the First Floor and Mezzanine Floor Plan

3. Identified ACM Specified for Removal on the Upper level of the First Floor (Near Ceiling)

4. Identified Asbestos-Containing Windows Specified for Removal from East Wall Elevation

5. Identified Asbestos-Containing Windows Specified for Removal from South Wall Elevation

6. Identified Asbestos-Containing Windows Specified for Removal from West Wall Elevation

7. Identified Asbestos-Containing Windows Specified for Removal from North Wall Elevation


TECHNICAL ACM ABATEMENT SPECIFICATIONS

1.0 WORK TO BE PERFORMED

1.1 SCOPE OF WORK

1.1.1 Summary

This project involves the proper removal and disposal of regulated asbestos-containing materials (RACM) identified in the Power House Building at the Metropolitan Sewer District (MSD) located at 1600 Gest Street in Cincinnati, Ohio. Other hazardous materials present have been inventoried, but are not part of the ACM abatement scope of work.

The scope of work involves OSHA “Class I Asbestos Work” including the removal of asbestos-containing thermal system insulation (i.e., layered paper pipe insulation and preformed block insulation) and OSHA “Class II Asbestos Work,” in which asbestos-containing window caulking/glazing and a limited amount of nonfriable asbestos-containing Transite will be removed from within regulated work areas.

Asbestos abatement shall be executed in full compliance with all applicable provisions of the OSHA asbestos standard for construction (29 CFR 1926.1101), OEPA NESHAP for asbestos, and ODH asbestos rules. All Class I asbestos work shall be done wet, and inside negatively-pressurized enclosures or negatively-pressurized glovebags. The Contractor is solely responsible for compliance with all federal, state, and local regulations, for the safety and health of his employees and subcontractor employees, and for compliance with all applicable environmental regulations.

For bidding purposes, detailed inventories and confirmatory PLM analytical results of the ACM are presented in Tables 1 and 2, respectively. Project drawings of floor plans, presented as Figures 1 through 7, indicate the types and locations of ACM and ACM-containing windows to be removed in each room or area of the building. Bidders are responsible for confirming actual quantities of specified materials present and for removing all types of ACM specified. Should the actual quantities removed fall within plus or minus 10 percent of the total estimated quantities, no adjustment to the Contract Sum shall be made. In the event that the total quantities removed are less than or greater than 10 percent of the estimated quantities (regardless of whether the materials are identified in this specification or subsequently discovered during the course of the abatement activities), MSD may consider an adjustment to the fixed-price contract sum via written and substantiated change order. An adjustment to the contract sum shall only be considered for those quantities less than or greater than 10 percent of the total estimated quantities.

Bidders are instructed to assume that all painted surfaces within the building contain lead. Previous XRF testing and paint-chip analysis data have confirmed the presence of lead in paint coatings. Any planned renovation work (e.g., manual demolition of or modifications to equipment or building components coated with lead-containing paint) during the course of this project must be conducted in accordance with the (separate) MSD Lead Hazard Control Specifications and all applicable requirements of the OSHA lead standard and applicable U.S. and Ohio EPA environmental regulations. The OSHA lead standard has numerous specific requirements and work practices for any construction-related activities involving the disturbance of lead paint.


The presence of LBP has been mentioned in these and other Specifications to alert bidders, the abatement contractor, and/or other trades engaged in renovation, demolition, abatement, or salvage work so that they will properly execute their activities in accordance with applicable provisions of the OSHA lead standard for construction and any other applicable lead regulations. For example, if painted metal pipes, mechanical components, or equipment will be dismantled or removed by torch cutting or aggressive mechanical methods (e.g., cutting with saws or disks, grinding), selected areas of lead paint will first have to be removed to reduce lead exposures of workers that perform those tasks.

1.1.2 ACM Removal

All specified ACM at the Power House building shall be completely and properly removed by the Contractor in accordance with these specifications and all applicable local, state, and federal regulations to the satisfaction of the Owner, and any regulatory agency or department having jurisdiction for this project. An inventory of the locations and estimated quantities of ACM identified in the building are presented in Table 1. Project drawings of floor plans showing the locations and estimated quantities of ACM specified for removal are also presented as Figures 1 through 7.

All asbestos abatement work shall be supervised by and is the responsibility of the Contractor’s OSHA competent person who, by virtue of his education, credentials, and experience, is capable of supervising an asbestos hazard abatement project in accordance with all current regulations, standard work practices, and guidance established for asbestos removal. The competent person is an employee of the abatement contractor and is defined as one capable of identifying existing asbestos and other hazards in the workplace, and who has the authority to take prompt corrective measures to eliminate them. In addition, for Class I and Class II asbestos work, one who is specially trained in a training course which meets the criteria of EPA’s Model Accreditation Plan (40 CFR 763) for project designer or supervisor, or its equivalent. The competent person shall conduct all required and additional inspections and shall perform or supervise all duties pursuant to Section O of the OSHA standard (29 CFR 1926.1101). Upon completion of work, all exposed surfaces in the abatement work area shall be made free of all visible dust and debris via the use and application of the engineering and work practice controls and procedures specified or required by regulations. The absence of fibers in each work area will be verified and documented by visual inspection and use of aggressive air sampling methods and phase contrast microscopy (PCM). The Contractor’s failure to meet the specified clearance criteria will require him to reclean the work area at his own expense.

1.1.3 Removal of Other Hazardous Materials (Not in the ACM abatement scope of work)

MSD’s environmental consultant has also identified other hazardous materials used in building components or stored in the Power House Building; however, these will be addressed separately and are not included in this abatement scope of work.

1.2 OWNER'S REPRESENTATIVES

This project shall be coordinated through the MSD located at 1600 Gest Street, Cincinnati, Ohio 45204. The Owner's representative for this abatement project is Mr. Anthony (Tony) Yee, P.E., Project Manager. Telephone number: 513-244-5180.


1.3 PROJECT SCHEDULE

The Contractor must comply with the project schedule described in the Bid documents. For each day the Contractor exceeds the Completion Date, liquidated damages shall be assessed by MSD at actual cost, which shall include the fees of the Owner’s consultant per workday plus expenses, and the cost to collect and analyze the number of air samples required to monitor this project.

Abatement work may commence approximately 10 days after the Contractor is notified to proceed unless otherwise instructed by the Owner. The 10 days is necessary for Environmental Protection Agency – National Emission Standards for Hazardous Air Pollutants (EPA-NESHAP) and Ohio Department of Health (ODH) pre-abatement notifications. The Contractor is responsible for completing the notification forms, submitting forms to the appropriate regulatory agencies, and for submitting all changes to these forms and submitting all revised and canceled notifications. The Contractor is also responsible for paying all associated fees and obtaining any required permits.

After award of contract and prior to start of work, the abatement Contractor shall prepare and submit a detailed Project Work Plan describing how the Contractor will execute the scope of work in accordance with these specifications and applicable regulations. The work plan shall address the project schedule and include the anticipated duration and phasing of abatement activities, and the size of the abatement work crew (number of workers/supervisors assigned each day).

All abatement work including ACM removal, cleanup, and satisfactory clearance testing for all phases of this project shall be completed within the determined schedule. All site work will be performed Monday through Friday (excluding legal holidays) on the day shift, which will not exceed nine hours (including rest and lunch breaks) between the hours of 7:O0 AM and 4:00 PM. The Owner and/or the Owner’s designated representative must approve any modifications to the project schedule.

2.0 GENERAL

2.1 SCOPE OF WORK

This Specification covers the removal of all specified asbestos-containing thermal system insulation, window caulking/glazing, and Transite throughout MSD’s Power House building, as specified in Table 1 and in the project plans (Figures 1 through 7), prior to planned renovation activities. Asbestos-containing roofing materials are not included in this project’s scope.

2.2 DESCRIPTION OF WORK

2.2.1 Work Specified

The Contractor shall furnish all labor, materials, employee training, services, insurance, licenses, and equipment in accordance with requirements of these Specifications, the Occupational Safety and Health Administration (OSHA), U.S. and Ohio EPA, Ohio Department of Health (ODH) and all local ordinances and other applicable regulations, to complete the removal and cleanup (as specified) of all specified ACM. All asbestos hazard abatement activities at MSD shall be completed by the designated project completion date.


In addition to the removal of specified ACM, and as part of the scope of work during preparation, the Contractor shall thoroughly clean (by HEPA-vacuuming and/or wet wiping) any previously contaminated surfaces, objects, stored items, equipment, and supplies in each work area and as specified and as instructed by the Owner or it’s Consultant.

Demolition of walls, ceilings, soffits, bulkheads, and other enclosures or barriers to access the ACM for removal, and the cleanup and disposal of all demolition debris is to be performed by the abatement contractor only after approval from the building Owner. Any non-asbestos, uncontaminated demolition debris generated during ACM access by the abatement contractor shall be removed from the building and disposed as conventional construction/demolition debris by the abatement Contractor.

2.2.2 Work Not Specified

The cost to remove additional quantities of ACM in excess of 10% at those estimated in Table 1 and indicated on Figures 1 through 7, revealed as abatement proceeds, will be established in advance (based on the unit prices submitted with the Contractor’s bid), reviewed and approved in writing by the Owner or his representative before proceeding, and charged against the monetary allowance specified in the contract.

2.2.3 Contractor Responsibilities

The Contractor is responsible for removing the specified ACM in accordance with this specification, and all applicable federal, state, and local asbestos and health and safety regulations and guidelines, and also for restoring all auxiliary areas used during abatement activities to a clean and acceptable condition. The Contractor is responsible for obtaining and complying with all permits, notifications, licenses, fees, and other requirements related to this work. These responsibilities include obtaining any licenses required by any patent covering the methods or devices used in the performance of this contract. The Contractor shall take special care as necessary to ensure that the remaining building components not specified for removal or interior demolition are protected from damage and asbestos contamination during abatement activities. Any unauthorized damages caused by the Contractor during the performance of abatement activities shall be repaired or corrected by the Contractor to the Owner’s satisfaction and at no additional expense to the Owner. Piping, ductwork, and other nonstructural elements shall not be used to support workers during the removal effort. Pipes without an adequate number of hangers for additional weight could break and result in serious injury to abatement workers, and damage to the building and building systems. The Contractor shall be held liable for injuries and/or damages that result from accidents or violations of applicable laws or this specification.

2.2.4 Insurance Requirements

The Contractor shall provide asbestos liability coverage in occurrence form with no exclusions of any type, in the amount of $1,000,000. The insurance carrier shall be licensed to offer insurance in the State of Ohio and have a Best's rating of "A." The Contractor shall not commence work until insurance requirements have been obtained with a certificate being filed as evidence of such coverage. Copies of the actual policy shall be provided to the Owner upon request.


2.2.5 Patent Indemnification

The Contractor shall pay all license fees and royalties and assume all costs incident to the use in the performance of work or the incorporation in the work of any invention, design, process, product or device which is the subject of patent rights currently held by others. The Contractor shall indemnify and hold harmless the Owner and Consultant, and anyone directly or indirectly employed by them from and against all claims, damages, losses and expenses, including attorneys' fees and court and arbitration costs, arising out of any infringement of patent rights incident to the use in performance of the work of any invention, design, process, product or device specified or not specified in the contract documents, and shall defend all such claims in connection with any alleged infringement of such rights.

2.2.6 Work Performance

The performance and execution of the work will be closely monitored by a third-party Consultant and his technicians or other designated representatives of the Owner. The surveillance will be inside each work area and its surroundings to ensure full compliance with these specifications and all applicable regulations. Full cooperation and support shall be provided to the Owner, the third-party Consultant and his technicians, and other Owner representatives throughout the abatement process. The continuous monitoring and checking could include review of data from workspace area air samples, daily personal samples (collected by the Contractor) from the breathing zone of a representative number of workers, air samples in the area surrounding the work area and outside the building, and the checking of standard operating procedures, engineering control systems, respiratory protection devices, transportation and disposal of asbestos materials, decontamination facilities and procedures, and any other aspects of the abatement process that may impact the health and safety of workers or building occupants and the quality of the environment.

The Contractor is responsible for the means and methods for completing this work and for complying with all applicable safety and health and environmental regulations. The abatement contractor, the contractor’s supervisors, and the asbestos workers under their control are directly and solely responsible for the proper removal and clean-up of specified ACM, for compliance with project plans and specifications, and all applicable federal, state, and local regulations, and for executing all work in a timely and professional manner. The Owner’s Consultant does not direct, supervise, manage, or otherwise control those charged with properly abating ACM.

2.3 TERMINOLOGY AND DEFINITIONS

Asbestos The generic term for naturally-occurring inorganic hydrated silicates, occurring in layered structures composed of chains of silicon/oxygen tetrahedral, which can be subdivided into flexible fibers. Asbestos includes chrysotile, amosite, crocidolite, tremolite, anthophyllite, actinolite, and any of these minerals that have been chemically treated and/or altered. In accordance with 29 CFR 1926.1101 (b), "asbestos" includes presumed asbestos-containing material (PACM), as defined below.

Asbestos-containing Material (ACM)

Any material or product which contains more than one percent asbestos

Asbestos-containing Building Material (ACBM)

Surfacing ACM, thermal system insulation ACM, or miscellaneous ACM that is found in or on interior structural members or other parts of a school building


Abatement Procedures to control fiber release from asbestos-contaminated materials; i.e., removal, encapsulation, or enclosure.

Adequately Wetted To sufficiently mix or penetrate with liquid to prevent the release of particulate. If visible emissions are observed coming from ACM, then the material has not been adequately wetted.

Air Lock A system for permitting entry or egress without permitting air movement between a contaminated area or an uncontaminated area, typically consisting of two contained doorways at least six feet (two meters) apart.

Air Monitoring The process of measuring the fiber content of a specific volume of air in a stated period of time. Phase contrast microscopy in accordance with NIOSH Method No. 7400 and transmission electron microscopy in accordance with the Asbestos Hazard Emergency Response Act or NIOSH Method No. 7402 are the prescribed methods of sampling and analyses.

Air Sampling Technician

A person trained and experienced in air sampling techniques and schemes who performs air sampling under the direction of the Asbestos Project Manager or C.I.H.

Amended Water Water to which a surfactant (wetting agent) has been added to increase the ability of the liquid to penetrate the ACM.

Asbestos Project Manager

An individual qualified by virtue of experience and education, designated by the Owner's Representative, responsible for supervising the air sampling technician and helping to ensure compliance with the job specifications.

Authorized Owner's Representative

Architect, Project Engineer, Construction Manager, Supervising Engineer, Consultant, or other personnel designated by the Owner. Authorized representatives of the Owner shall have the authority to stop work of the Contractor if methods used, safety precautions, or personnel protection are not being carried out in accordance with the specifications and regulations cited herein.

Asbestos Hazard Emergency Response Act (AHERA)

Congressional Act which requires local education agencies to identify friable and non-friable asbestos-containing building materials (ACBM) in public and private elementary and secondary schools, submit management plans to the Governor of their state, implement management plans in a timely manner, and maintain complete record keeping of any action involving the disturbance of ACBM.

Authorized Visitor Any person authorized by the employer and required by work duties to be present in regulated areas. The Owner's Representatives, Air Sampling Technician, Asbestos Project Manager, Consultant, or a representative of any regulatory or other agency having jurisdiction over the project.

Barrier Plastic sheeting and/or other materials used along with the floors, ceilings, and walls of a structure to form an isolated work environment that separates the contaminated work area from the uncontaminated area.

Bridging Encapsulant A liquid designed to form a tough membrane over the surface of ACM.

Building Owner The Metropolitan Sewer District or their authorized representative(s).

Breathing Zone The areas near the collar or lapel, forward of the shoulders.

Category I Nonfriable Asbestos-containing Material

Asbestos-containing packing, gaskets, resilient floor covering, and asphalt roofing products containing more than one percent asbestos as determined using the method specified in Appendix A, Subpart F, 40 CFR part 763, Section 1, Polarized-Light Microscopy.


Category II Nonfriable Asbestos-containing Material

Any ACM, excluding Category I Nonfriable ACM, containing more than one percent asbestos as determined using the method specified in Appendix A, Subpart F, 40 CFR part 763, Section I, Polarized-Light Microscopy, that when dry, cannot be crumbled, pulverized, or reduced to a powder by hand pressure.

Certified Industrial Hygienist (CIH)

One who is certified in the practice of industrial hygiene by the American Board of Industrial Hygiene.

Class I Asbestos Work Activities involving the removal of thermal system insulation (TSI) and surfacing ACM and PACM.

Class II Asbestos Work Activities involving the removal of ACM that is not thermal system insulation or surfacing material. This includes, but is not limited to, the removal of asbestos-containing wallboard, floor tile and sheeting, roofing and siding shingles, and construction mastics.

Class III Asbestos Work Repair and maintenance operations where ACM and PACM, including TSI and surfacing material, may be disturbed.

Class IV Asbestos Work Maintenance and custodial activities during which employees contact but do not disturb ACM or PACM, and activities to clean up dust, waste, and debris resulting from Class I, II, and III activities.

Clean Room An uncontaminated area or room that is part of the workers' decontamination enclosure system, with provisions for storage of workers' street clothes and uncontaminated materials and equipment.

Competent Person A Contractor's employee (typically the foreman or superintendent) by virtue of his education and experience who is capable of operating an asbestos hazard abatement project in accordance with these specifications and current EPA, OSHA and DOT regulations. Duties of the competent person are as defined in OSHA Standard 29 CFR 1926.1101(b). One who is capable of identifying existing asbestos hazards in the workplace and selecting the appropriate control strategy for asbestos exposure, and who has the authority to take prompt corrective measures to eliminate them. In addition, for Class I and Class II work, one who is specially trained in a training course which meets the criteria of EPA's Model Accreditation Plan (40 CFR 763) for project designer or supervisor, or its equivalent; and, for Class III and Class IV work, one who is trained in an operations and maintenance (O&M) course developed by the EPA.

Consultant The Asbestos Project Manager, Industrial Hygienist, and/or technician designated by the Owner or the Owner's Representative.

Contaminated Containing or coated with asbestos.

Curtained Doorway A device to allow entry or egress from one room to another while minimizing air movement between the rooms, typically constructed by placing two overlapping sheets of plastic over an existing or temporarily formed doorway, securing the vertical edge of one sheet along one vertical side of the doorway, and securing the vertical edge of the other sheet along the opposite vertical side of the doorway. Two curtained doorways spaced a minimum of six feet (two meters) apart form an air lock.

Decontamination Area An enclosed area adjacent and connected to the regulated area and consisting of an equipment room, shower area, and clean room, which is used for the decontamination of workers, materials, and equipment that are contaminated with asbestos.


Decontamination Enclosure System

A series of connected rooms, with curtained doorways between any two adjacent rooms, for the decontamination of workers or of materials and equipment. A decontamination enclosure system always contains at least one airlock.

Disposal All herein specified procedures necessary to transport and deposit the asbestos-contaminated materials removed from the building(s) in an approved active waste disposal site in compliance with Section 61.154 of the EPA Regulations (40 CFR Part 61) and DOT Regulations (49 CFR Parts 171 and 172)

Disturbance Any activities that disrupt the matrix of ACM or PACM, crumble or pulverize ACM or PACM, or generate visible debris from ACM or PACM. This term includes activities that disrupt the matrix of ACM or PACM, render ACM or PACM friable, or generate visible debris. Disturbance includes cutting away small amounts of ACM or PACM, no greater than the amount that can be contained in one standard sized glovebag or waste bag in order to access a building component. In no event shall the amount of ACM or PACM so disturbed exceed that which can be contained in one glovebag or waste bag, which shall not exceed 60 inches in length and width.

Employee Exposure The exposure to asbestos that would occur if employees were not using respiratory protective equipment.

Encapsulant A liquid material that can be applied to ACM or cleaned substrates following the removal of ACM to control the possible release of residual asbestos fibers by creating a membrane over the surface.

Encapsulation All herein specified procedures necessary to coat ACM with a penetrating or bridging encapsulant to control the possible release of asbestos fibers into the ambient air.

Equipment Decontamination Enclosure System

A decontamination enclosure system for materials and equipment, typically consisting of a designated area of the work area, a washroom, a holding area, and an uncontaminated area.

Equipment Room (Change Room)

A contaminated area or room located within the decontamination area that is supplied with impermeable bags or containers for the disposal of contaminated protective clothing and equipment.

Excursion Limit (EL) The employer shall ensure that no employee is exposed to airborne concentrations of asbestos in excess of 1.0 fiber per cubic centimeter of air (1 f/cc) as averaged over a sampling period of 30 minutes as determined by the method prescribed by Appendix A of 29 CFR 1926.1101 (NIOSH Method 7400) or an equivalent method.

Facility Component Any pipe, duct, boiler, tank, fan, engine, or furnace at or in a facility, or any structural member of a facility.

Fiber A particulate form of asbestos, five micrometers or longer, with a length-to-diameter ratio of at least three to one.

Fixed Object A piece of equipment or furniture in the work area that cannot be removed from the work area.

Friable Asbestos Material

Any material containing more than one percent asbestos as determined using the method specified in Appendix A, Subpart F, 40 CFR part 763, Section 1, Polarized-Light Microscopy, that when dry, can be crumbled, pulverized, or reduced to powder by hand pressure. If the asbestos content is less than 10 percent as determined by a method other than point counting by polarized-light microscopy (PLM), verify the asbestos content by point counting using PLM.


Glovebag Technique A method with limited applications for removing small amounts of ACM from HVAC ducts, piping runs, valves, joints, elbows, and other nonplanar surfaces in an uncontaminated (plasticized) work area. The glovebag assembly is a manufactured or fabricated device consisting of a glovebag (typically constructed of 6-mil transparent plastic); two inward-projecting, long-sleeve, rubber gloves; one inward-projecting waterwand sleeve; an internal tool pouch; and an attached, labeled receptacle for asbestos waste. The glovebag is constructed and installed in such a manner that it surrounds the object or area to be decontaminated and contains all asbestos fibers released during the removal process. All workers who are permitted to use the glovebag technique must be highly trained, experienced, and skilled in this method.

HEPA Filter A highly-efficiency particulate air (absolute) filter capable of trapping and retaining 99.97 percent of all mono-dispersed particles of 0.3 micrometers in diameter.

HEPA Vacuum High-efficiency particulate air (absolute) filtered vacuuming equipment with a filter system capable of collecting and retaining asbestos fibers. Filters should be 99.97 percent efficient for retaining 0.3-micrometer particles or larger.

Holding Area A chamber between the washroom and an uncontaminated area in the equipment decontamination enclosure system. The holding area comprises an air lock.

Movable Object A piece of equipment or furniture in the work area that can be removed from the work area.

Intact The ACM that has not crumbled, been pulverized, or otherwise deteriorated so that the asbestos is no longer likely to be bound with its matrix.

Leak Tight A condition in which solids or liquids cannot escape or spill out. It also means dust-tight.

Negative Initial Exposure Assessment

A demonstration by the employer, which complies with the criteria in 29 CFR 1926.1101 paragraph (f)(2)(iii), that employee exposure during an operation is expected to be consistently below the OSHA permissible exposure levels (PELs).

Negative Pressure Ventilation System

A local exhaust system capable of maintaining a detectable pressure differential across containment barriers relative to adjacent unsealed areas.

NESHAPS The National Emission Standards for Hazardous Air Pollutants (40 CFR Part 61).

NIOSH The National Institute for Occupational Safety and Health.

OSHA Occupational Safety and Health Administration.

Owner City of Cincinnati, Metropolitan Sewer District (MSD)

Owner’s Representative

Mr. Tony Yee, P.E., Project Manager with MSD, or other person designated by the Owner

Penetrating Encapsulant

A liquid designed to saturate the material, thereby binding asbestos fibers to one another and to other substances in the materials.

Permissible Exposure Limit (PEL)

The employer shall ensure that no employee is exposed to airborne concentrations of asbestos in excess of 0.1 fiber per cubic centimeter of air as an eight-hour time-weighted average (TWA), as determined by the method prescribed in Appendix A of 29 CFR 1926.1101 (NIOSH Method 7400) or by an equivalent method. Also see Excursion Limit.

Plasticize To cover floors, walls, etc., with plastic sheets as herein specified.


Presumed Asbestos-containing Material (PACM)

Thermal system insulation and surfacing material found in buildings constructed no later than 1980.

Project Designer A person who has successfully completed the training requirements for an Abatement Project Designer, as established by 40 U.S.C. Sec. 763.90(g).

Regulated Asbestos-containing Material

(EPA-NESHAP; ODOH). Any friable asbestos material, Category I nonfriable ACM that has become friable, Category I nonfriable ACM that has been subjected to sanding, grinding, cutting, or abrading, or Category II nonfriable ACM that has a high probability of becoming or has become crumbled, pulverized, or reduced to powder by the forces expected to act on the material in the course of demolition or renovation operations.

Regulated Area An area established by the employer (abatement contractor) to demarcate areas where Class I, II, and III asbestos work is conducted, and any adjoining area where debris and waste from such asbestos work accumulate; and a work area within which airborne concentrations of asbestos exceed or there is a reasonable possibility they may exceed the permissible exposure limit.

Removal All herein specified procedures necessary to strip or clean up ACM from designated areas and to dispose of these materials at an acceptable disposal site.

Shower Room A room between the clean room and the equipment room in the worker decontamination enclosure system, with hot, and cold or warm running water and suitably arranged for complete showering during decontamination. The shower room comprises an airlock between contaminated and clean areas.

Staging Area Either the holding area or an area near the waste-transfer airlock where containerized asbestos waste has been placed prior to removal from the work area.

Stripping All herein specified procedures necessary to remove ACM or asbestos-contaminated materials from their substrate or from any component of the facility.

Substrate The underlying surface or material (piping, duct, boilers, tanks, floors, etc.) to which ACM has been applied.

Surfacing Material (SM)

Material that is sprayed or troweled on, or otherwise applied to surfaces (such as acoustical plaster on ceilings and fireproofing materials on structural members, or other materials on surfaces for acoustical, fireproofing, and other purposes).

Surfactant A chemical wetting agent added to water to improve penetration.

Thermal System Insulation

ACM applied to pipes, fittings, boilers, breeching, tanks, ducts, or other structural components to prevent heat loss or heat gain.

Visible Emissions Any emissions that are visually detectable without the aid of instruments, coming from regulated ACM or asbestos-containing waste material.

Washroom A room between the work area and the holding area in the equipment decontamination enclosure system. A washroom comprises an air lock.

Waste Shipment Record

The shipping document, required to be originated and signed by the waste generator, used to track and substantiate the disposition of ACM.

Wet Cleaning The process of eliminating asbestos contamination from building surfaces and objects by using cloths, mops, or other cleaning tools that have been dampened with water, and then disposing of these cleaning tools as asbestos-contaminated waste.


Work Area Designated rooms, spaces, or areas of the project in which asbestos abatement actions are to be undertaken or which may be contaminated as a result of such abatement actions. A contained work area is one that has been sealed, plasticized, and equipped with a decontamination enclosure system. An isolated work area is a controlled-access work area that has been isolated by plastic curtains and in which the openings to the outside are sealed with plastic sheeting. An isolated work area is not an airtight containment area and is not equipped with a decontamination enclosure system.

Worker Decontamination Enclosure System

A decontamination enclosure system for workers, typically consisting of a clean room, a shower room, and an equipment room.

2.4 APPLICABLE REFERENCE DOCUMENTS

The current issue of each document shall govern. If there is a conflict among requirements or with these Specifications, the more stringent requirement shall apply.

2.4.1 Regulations

Compliance is required in strict accordance with all current applicable federal, state, municipal, and local regulations.

2.4.1.1 Title 29, Code of Federal Regulations, Section 1910.1001. Occupational Safety and Health Administration (OSHA), U.S. Department of Labor.




2.4.1.5 Title 29, Code of Federal Regulations, Section 1910, Subpart D: Walking-Working Surfaces. Occupational Safety and Health Administration (OSHA), U.S. Department of Labor.




2.4.1.9 Title 40, Code of Federal Regulations, Part 61, Subparts A and M, National Emissions Standards for Hazardous Air Pollutants, U.S. Environmental Protection Agency (EPA).


2.4.1.10 Title 40, Code of Federal Regulations, Sections 763.117 and 763.302, U.S. Environmental Protection Agency (EPA).

2.4.1.11 Title 40, Code of Federal Regulations, Part 763, Asbestos-Containing Materials in Schools; Final Rule and Notice, U.S. Environmental Protection Agency (EPA). TEM Analysis Criteria for Completion of Abatement Actions.

2.4.1.12 Title 49, Code of Federal Regulations, Sections 171-173, Hazardous Materials Transportation Regulations, U.S. Department of Transportation (DOT).

2.4.1.13 Section 3710, Asbestos Abatement, Ohio Revised Code.

2.4.2 Guidance Documents

2.4.2.1 Guidance for Controlling Asbestos-Containing Materials in Buildings: Washington, D.C. Office of Pesticides and Toxic Substances, U.S. EPA. 1985

2.4.2.2 Measuring Airborne Asbestos Following an Abatement Action: Washington, D.C., Office of Pesticides and Toxic Substances, U.S. EPA. 1985.

2.4.2.3 Asbestos Waste Management/Guidance: Generation, Transport, and Disposal: Washington, D.C., Office of Solid Waste, U.S. EPA. 1985.

2.4.3 Codes and Standards – Regulatory Requirements

2.4.3.1 Adherence to Codes and Regulations: Before proceeding with the work, review the drawings and specifications to assure the design is in accordance with applicable laws, ordinances, rules, and regulations. Assume responsibility for compliance with the applicable laws, ordinances, rules and regulations unless notice is given to the Owner in writing of the discrepancy before proceeding with the work.

2.4.3.2 ANSI – American National Standards Institute, ANSI Z 9.2, Fundamentals Governing the Design and Operation of Local Exhaust Systems.

2.4.3.3 NEC – National Electric Code. Any work involving electrical equipment in a facility shall be performed in strict accordance with the National Electric Code.

2.5 EXPOSOSURE ASSESSMENTS AND AIR MONITORING

2.5.1 General

2.5.1.1 The Consultant shall closely and continuously monitor the performance and execution of the work. The surveillance shall be inside of the work area and the surroundings to ensure full compliance with these specifications and all applicable regulations. Full cooperation and support shall be provided to the Consultant and his representatives throughout the asbestos hazard abatement project. The continuous monitoring and checking shall include review of data from air samples from the work area, personal samples at the breathing zone of a number of workers as dictated by 29 CFR 1926.1101, air samples in the area surrounding the outside of the work area, checking of standard operating procedures, engineering control systems, respiratory protection devices,


transportation and disposal of asbestos materials, decontamination facilities and procedures, and any other aspects of the abatement process that may impact the health and safety of the people and the quality of the environment.

2.5.1.2 The Contractor’s competent person or other qualified representative shall conduct personal, time-weighted average (TWA) and excursion monitoring (as required by OSHA in 29 CFR 1926.1101 and this section) in each designated work area throughout the preparation, removal, and decontamination phases of this project, as specified in Article 2.5.3, Asbestos Exposure Monitoring Schedule. The number of personal TWA and excursion air samples to be collected daily shall be determined by OSHA regulations or interpretations based on the number of workers on-site in each distinct work area, and the activities that they are involved in each day. Air monitoring shall be conducted for compliance with OSHA regulations and to evaluate the adequacy of 1) the type of respiratory protection used by workers, 2) work practices and engineering controls, and 3) containment barriers and decontamination procedures. The Consultant shall collect and arrange for the analysis of the final air samples and any other air samples collected from outside the work area. As a measure of quality control, the Building Owner also reserves the right to have its Consultant perform area, personal, and excursion monitoring on selected individuals inside the work area to compare results with those of the abatement Contractor.

2.5.1.3 The Contractor is responsible for monitoring only personnel and areas inside the work areas and not areas immediately outside the work area. The Contractor’s competent person or other qualified representative responsible for the collection of air samples shall be technically competent to perform the work, appropriately trained and certified, and experienced in the prescribed procedures for collecting representative air samples.

2.5.2 Exposure Assessment

2.5.2.1 The Contractor’s competent person or other qualified representative shall conduct an initial exposure assessment [per 29 CFR 1926.1101(f)(2)(i) and (iii)] immediately before or at the start of the asbestos abatement operation. The initial exposure assessment must be completed (i.e., analyzed and reported) in time to comply with requirements triggered by exposure data or lack of a negative exposure assessment.

2.5.2.2 The initial exposure assessment shall be based on the evaluation of personal air monitoring data of employees and can include previous monitoring data of operations that indicate exposure levels likely to be encountered during specific work tasks on the project.

2.5.2.3 Worker exposures shall be assumed to be more than the OSHA PEL and EL until personal monitoring is conducted and/or a negative exposure assessment is established.


2.5.3 Asbestos Exposure Monitoring Schedule

At a minimum, the Contractor's exposure monitoring schedule and sampling strategy for each distinct work area per facility shall be as follows: Note: OSHA regulations, directives, or local area office requirements shall dictate the exact number of air samples to be collected daily based on the number of employees on-site performing different abatement activities.

Phase of Abatement Project When to Sample Type of Sample Minimum # of

Employees Location

Preparation During pre-cleaning and preparation of work area if there is evidence of contamination from previous ACM disturbance.

Each day of operation

Personal Excursion

1 or 25% 1 or 25% *

Per work area Per work area

Removal Each day of operation

Personal Excursion

1 or 25% 1 or 25% *


Decontamination Each day of operation

Personal Excursion

1 or 25% 1or 25% *


NOTE*: Short-term excursion samples shall be also be collected in addition to TWA samples.

2.5.4 Methods of Collection and Analysis

2.5.4.1 The Contractor shall conduct all air monitoring in accordance with 1926.1101(f) and NIOSH Method Number 7400. The recommended sampling period shall be seven to eight hours, except on abbreviated work shifts. The flow rate for the sampling pump shall be 0.5 to 2.0 liters/minute. Sampling pumps shall be checked daily by the Contractor at the beginning and end of each sample period for proper flow-rate calibrations. The Contractor shall also supply his own air sampling pumps and equipment, air monitoring cassettes, and calibration device. In addition, all pump calibrations and air-monitoring data shall be documented by the Contractor.

2.5.4.2 All samples collected by the Contractor’s competent person or designee shall be submitted daily for analysis to a laboratory accredited by the American Industrial Hygiene Association or participating in the NIOSH Proficiency Analytical Testing (PAT) program for PCM analyses. Completed data sheets or other data record forms approved by the Consultant must be submitted to the laboratory along with each day’s filter samples. A copy of the Contractor’s sample results must be submitted to the Consultant within 24 hours of their collection.

2.5.4.3 The minimum number of employees/areas to monitor indicated in Article 2.5.3 shall not be interpreted as the total number of samples to be collected and analyzed each day. Multiple personal or area samples may have to be collected during the seven-to-eight-hour work shift to accurately characterize a worker's exposure level. The number of samples collected shall depend on the degree of fiber contamination in the work area and the effectiveness of work practices and engineering controls. Overloaded filter samples with “fibers too numerous to count” or filter holder cassettes containing loose particulate matter are unacceptable. The air samples must be properly collected and


be representative of actual fiber concentrations in the work area. This may involve taking multiple personal air samples for shorter durations and/or at lower flow rates to avoid filter overloading. Both TWA and excursion samples shall be taken. If multiple shifts are required to perform the work specified, samples will be collected by the Contractor on each shift to comply with OSHA regulations and these specifications.

2.6 SUBMITTALS AND NOTICES

2.6.1 The following documents shall be submitted in DUPLICATE with the Bid.

2.6.1.1 Bid Form that is properly signed and completed. Show amount in both words and figures. In the case of a discrepancy, the amount in words shall govern.

2.6.1.2 Substitution Sheet – Bidders shall include on a substitution sheet all materials and/or equipment that the bidder wishes to have considered in lieu of the materials and/or methods specified or approved by addenda.

2.6.1.3 Submit to the Owner a completed statement of Bidder's Qualifications and reference list of prior projects completed. Contractors bidding on this project must have successfully completed at least three similar asbestos hazard abatement projects in which the total cost of the abatement portion of the work was in excess of $75,000.00. Names, addresses, and phone numbers of the references, and a brief description of each project shall be provided.

2.6.1.4 Submit proof that the Contractor is currently certified and licensed in the State of Ohio as an Asbestos Hazard Abatement Contractor and will remain so throughout the project schedule. Bids shall not be accepted from Contractors not licensed to perform asbestos hazard abatement work in the State of Ohio.

2.6.1.5 Submit proof that the bidder’s insurance carriers are licensed/certified to do business in the State of Ohio, current Certificate of Insurance showing limits of coverage, and a copy of the company’s current Workers’ Compensation Certificate.

2.6.1.6 Submit descriptions of any asbestos hazard abatement activities conducted that have been prematurely terminated, including the circumstances surrounding the termination.

2.6.1.7 Submit a list of any contractual penalties that the applicant has paid for breach of or noncompliance with contract specifications for asbestos hazard abatement activities, such as overruns of completion time or liquidated damages.

2.6.1.8 Identify any citations or Notices of Violation, settlement agreements, Public Health Emergency Orders, or revoked certifications levied against the Contractor by any federal, State, or local government agencies for violations related to asbestos hazard abatement during the last three (3) years, including the name and location of the project, the date(s), and how the allegations were resolved.

2.6.1.9 Submit a description, in detail, of all legal proceedings, lawsuits, or claims that have been filed or levied against the applicant or any of the applicant's past or present employees for asbestos-related activities, and how the allegations were resolved. A waiver from this Article shall not be considered.


NOTE: If submittals 2.6.1.6 through 2.6.1.9 do not apply or the response is “None”, the Contractor shall provide a written statement expressing the same.

2.6.2 To be Submitted at the Pre-Construction Meeting

2.6.2.1 Submit written worker protection programs for asbestos abatement. Include documentation to the Owner indicating that all employees have had medical examinations [per 29 CFR 1926.1101(m)] and instructions on the hazards of asbestos exposure, on use and fitting of respirators and protective dress, on use of showers, on entry and exit from work areas, and on all aspects of work procedures and protective measures.

2.6.2.2 Complete and submit copies of 10-day written notifications of proposed asbestos abatement/demolition work and all subsequent revisions to original notifications to the Hamilton County Dept. of Environmental Services and the Ohio Department of Health, with copies to the Owner’s Project Representative and the Consultant, on the date designated in the Project Schedule (Section 1.3) and not fewer than 10 days before work commences on this project. Names and addresses of those receiving notifications and copies of the notifications are as follows:

A. Building Owner’s Project Representative Mr. Tony Yee, P.E. City of Cincinnati

Metropolitan Sewer District 1600 Gest Street Cincinnati, Ohio 45204

513.244.5180 [email protected]

B. Asbestos Consultant: Mr. Mark A. Karaffa, C.I.H BHE Environmental, Inc. 11733 Chesterdale Road Cincinnati, Ohio 45246-3405 513.326.1500 [email protected]

C. Hamilton County Department of Environmental Services Mr. Ken Wilkins 250 William Howard Taft Road Cincinnati, Ohio 45219 513.946.7743

D. Ohio Department of Health

Attn.: Revenue Processing PO Box 15278 Columbus, Ohio 43266-0118 614.466.0061


2.6.2.3 Submit a written Respiratory Protection Program (per OSHA 29 CFR 1910.134). NOTE: Notification of compliance with this standard alone will be considered insufficient. The Contractor must provide a complete written respiratory protection program consistent with regulatory requirements.

2.6.2.4 Submit a written Hazard Communication Program (per OSHA 29 CFR 1926.59). NOTE: Notification of compliance with this standard alone will be considered insufficient. The Contractor must provide a complete hazard communication program consistent with regulatory requirements. Include copies of all Material Safety Data Sheets (MSDS) for asbestos, all encapsulants, amending agents, adhesives, paints, solvents and any other chemical material used on the project.

2.6.2.5 Submit satisfactory proof to the Owner that all required permits, site locations, and arrangements for transport and disposal of asbestos-containing or contaminated materials, supplies, and the like have been obtained. Also submit copies of all dump receipts/trip tickets.

2.6.2.6 Submit to the Consultant a description of construction plans for decontamination enclosure systems and for isolation of the work areas in compliance with these specifications and applicable regulations.

2.6.2.7 Submit prior to the start of work a detailed project schedule indicating manpower allocation per phase of work (i.e., mobilization, preparation, gross removal, decontamination, tear down, and demobilization). Include descriptions of abatement methods that will be used (indicate where acceptable alternative practices, special equipment, and management/staffing techniques or strategies that could favorably impact and improve the quality and efficiency of the abatement process).

2.6.2.8 Submit a Site Safety Plan (per OSHA 29 CFR 1910.120), which includes a Fire Protection and Emergency Response Plan, to the Consultant before work begins.

2.6.2.9 Submit the name of the supervisor qualified to carry out the functions of competent person per 29 CFR 1926.1101, along with resume showing a minimum of two years experience supervising asbestos hazard abatement projects. Submit documentation demonstrating Ohio Department of Health Certification and satisfactory completion of an EPA-approved Contractor/Supervisor Asbestos Abatement Practices training course for the foreman/competent persons assigned to this project. A valid Contractor/Supervisor training certificate, along with a valid refresher certificate (if applicable), shall be required for all competent persons supervising this project. The Contractor shall provide the original Contractor/Supervisor training certificate if requested by the Consultant or Owner.

2.6.2.10 All asbestos abatement workers on this project must have completed an EPA-approved Asbestos Worker training course and shall provide copies of the initial and valid refresher course (if applicable) training certificates and Ohio Department of Health Certification before engaging in any abatement activity (i.e., work area preparation, removal, or decontamination). The Contractor shall provide original and current certification cards and course training certificates upon request by the Consultant or Owner.


2.6.3 Condition of Facility

The Contractor and the Consultant shall agree in writing to the existing condition of the facility, fixtures, equipment, and finishes prior to commencement of the work. NOTE: Inspections shall be performed at the pre-construction meeting for each work area.

2.6.4 Manufacturer's Certification

A Manufacturer's Certification shall be submitted stating that vacuums, ventilation equipment, and other equipment required to contain airborne fibers conform to ANSI Z 9.2, equipped with HEPA filters, and are intended for use on asbestos abatement projects.

2.7 PERSONAL PROTECTIVE EQUIPMENT

2.7.1 Worker Instruction

Prior to commencement of work, the workers shall be instructed and shall be made knowledgeable in the topics described in Sections 2.6.2.3, 2.6.2.4, and 2.6.2.8, and in the following section.

2.7.2 Respiratory Equipment

All workers shall be provided with personally issued and marked respiratory equipment approved by NIOSH and suitable for the appropriate class of asbestos work and for the asbestos exposure level in the work area according to OSHA Standard 29 CFR 1926.1101(h). The Contractor must still conduct initial and periodic personal air monitoring daily throughout all phases of this project and base the selection of respirators on such monitoring data and anticipated conditions.

Full-face (tight-fitting) powered-air purifying respirators (PAPRs) are required for all Class I asbestos work and for Class II work where the ACM is not removed substantially intact or performed without a negative exposure assessment. If the contractor provides documentation that demonstrates a negative exposure assessment in accordance with 29 CFR 1926.1101(f)(2)(iii), then PAPRs will not be required for Class II work. At a minimum, after demonstration of a negative exposure assessment, all workers performing Class II asbestos abatement activities within the work area shall wear properly fitted, full-face or half-mask air-purifying respirators equipped with high-efficiency filter cartridges provided that representative personal exposure levels are maintained below 1.0 fiber/cubic centimeter as a TWA (10 x PEL). Single-use or reusable disposable respirators are not acceptable and shall not be used on this project. Sufficient HEPA filter cartridges for replacement shall be provided as required by the worker, applicable regulations, or as bound into this specification. The class of asbestos work performed and prevalent airborne fiber concentrations in the breathing zones of abatement workers shall govern the type of respiratory protection selected by the employer and worn by workers [per 29 CFR 1926.1101(h)].

If prevalent airborne fiber concentrations inside any asbestos work area exceed 1.0 f/cc (i.e., 10 times the TWA PEL), the Contractor shall stop work and implement the following:

Improve engineering and work practice controls (increase negative pressure, local exhaust ventilation, better wet methods, prompt containment of asbestos waste materials, etc.) to effectively reduce and maintain airborne fiber levels to less than the PELs.


Full-face, Type "C" air-supplied respirators in positive pressure (constant flow) or pressure demand modes may also be used. All air hose connections shall be equipped with a HEPA-filtered disconnect system in the event of compressor failure or the exhaustion of air in the reserve tanks. At the minimum, Type "C" air supply shall provide the following:

• A continuous sufficient supply of air. • Supplied air that meets Grade D requirements as specified by Compressed Gas Association. • An adequate volume of air to allow for escape from the work area. • Worker comfort and safety. • NIOSH-approved respirators and supply hoses.

Compressed air systems shall be designed to provide air volumes and pressures to accommodate respirator manufacturer's specifications. Only compressed Grade D breathing air in cylinders or breathing air compressors shall be used and compressors may be either fuel or electric powered; however, electric powered compressors are preferred. The compressor shall also be equipped with in-line air purifying sorbent beds and filters that remove moisture, odors, oils, hydrocarbons, heat, and carbon monoxide. The compressor shall be equipped with a carbon monoxide monitor and shall be checked daily and as specified by the manufacturer. The carbon monoxide monitor should be equipped with a visible and audible alarm to alert the operator of a high carbon monoxide level in the supply air. The compressed air system shall also be equipped with a reserve tank or reservoir. The volume of air in the reserve tank should provide for adequate escape time for employees in the work area. All Type "C" air line respiratory equipment shall be approved as an entire unit by NIOSH. This includes the respirator face piece, regulator, and airline. Any alterations of the respirator or subcomponents are strictly forbidden and void any approval by NIOSH.

2.7.3 Protective Clothing

Workers shall be provided with sufficient sets of protective full body clothing per OSHA Standard 29 CFR 1926.1101(i). Such clothing shall consist of full body coveralls and headgear. Eye protection and hard hats shall be provided as required by applicable safety regulations and on-site assessment of hazards. Non-disposable protective clothing and footwear shall be left in the contaminated equipment room until the end of the asbestos hazard abatement work, at which time such items shall be disposed of as asbestos waste, or shall be thoroughly cleaned of all asbestos or ACM. Disposable protective clothing, headgear, and footwear shall be provided by the Contractor and at no expense to the employee.

2.7.4 Visitor Protection

Whenever requested, authorized visitors shall be provided with suitable clean and disinfected respirators with new filters or cartridges and protective clothing, headgear, eye protection, and footwear, as described in Article 2.7.3, whenever they are required to enter the work area, to a maximum of three sets per day.

2.7.5 Protection Procedures

The Contractor shall provide and post, in the equipment room and the clean room, the decontamination and work procedures to be followed by workers, as described in Article 2.7.6 of these specifications.


2.7.6 Worker Protection Procedures

2.7.6.1 Each worker and authorized visitor (except as noted herein) shall, upon entering the job site: remove street clothes in the clean change room and don a respirator with new filters and clean protective clothing before entering into the equipment room or the work area; except workers that intend to rewear contaminated protective clothing stored in the equipment room which shall enter the equipment room wearing only respirators.

2.7.6.2 Each worker and authorized visitor shall each time he leaves the work area: remove gross contamination from clothing before exiting the work area; proceed to the equipment room and remove all clothing except the respirator; still wearing the respirator, proceed naked to the showers; clean the outside of the respirator with soap and water while showering; remove the respirator; thoroughly shampoo and wash himself; if the filters require replacement, remove filters, wet them, and dispose of them in the container provided for the purpose; and wash and rinse the inside of the respirator.

Exception: Authorized visitors and representatives of the Consultant who enter a work area for brief periods to observe Contractor employees, to check monitoring equipment, or to perform other short-duration tasks that do no result in significant exposures or contamination of protective clothing, shall be permitted to wear protective clothing over street clothes and are not required to shower before exiting the work area. All other procedures and personal protective equipment required by this section, however, will apply to authorized visitors.

2.7.6.3 Following showering and drying off, each worker and authorized visitor shall proceed directly to the clean change room and dress in clean clothes at the end of each day's work, or before eating or drinking. Before reentering the work area from the clean change room, each worker and authorized visitor shall don a clean respirator with filters and shall dress in clean protective clothing; except workers that intend to rewear contaminated protective clothing stored in the equipment room shall enter the equipment room wearing only respirators.

2.7.6.4 Contaminated work footwear shall be stored in the equipment room when not in use in the work area. After the asbestos hazard abatement process is completed, footwear shall be disposed of as contaminated waste or cleaned thoroughly inside and out with soap and water before being removed from the work area or from the equipment and access area. Contaminated protective clothing shall be stored in the equipment room for reuse or placed in receptacles for disposal with other asbestos-contaminated materials.

2.7.6.5 Workers removing waste containers from the equipment decontamination enclosure shall enter the holding area from outside wearing a respirator and dressed in clean coveralls. Workers shall not use this system as a means to exit or enter the washroom or the work area.

2.7.6.6 Workers shall not eat, drink or chew gum/tobacco at the work area except in the established clean room, designated lunch/break area, or outside the facility. Smoking shall not be permitted at any time inside of the facility.


2.7.6.7 All OSHA exposure monitoring shall be conducted in accordance with Article 2.5 during all phases of preparation, removal and decontamination at each work area.

2.7.6.8 Workers shall be fully protected with respirators and protective clothing prior to the first disturbance of asbestos-containing or contaminated material, and until final cleanup is completed and approved.

2.8 EQUIPMENT REMOVAL PROCEDURES

Cleaning

Clean external surfaces of contaminated containers and equipment thoroughly by wet wiping with cloths, sponges, or brushes, wet mopping, or using a HEPA filtered vacuum before moving such items into the equipment decontamination enclosure system washroom for final cleaning and removal to uncontaminated areas. Personnel shall not exit work areas through the equipment decontamination enclosure system.

2.9 EMERGENCY PRECAUTIONS

The Contractor shall establish emergency and fire exits from the work area in accordance with all applicable regulations and the Site Safety Plan (Article 2.6.2.8).

The Contractor shall be responsible for providing a minimum of one portable ABC fire extinguisher for each 3,000 square feet of containment area in accordance with 29 CFR 1926.150. Travel distance from any point inside of the work area to the nearest fire extinguisher shall not exceed 100 feet. NOTE: Substitution of a fire extinguisher with a half-inch garden hose not exceeding one hundred feet in length shall be permitted provided the number of hoses is equivalent to the required number of fire extinguishers.

Phone numbers for local medical emergency personnel should be obtained prior to commencement of abatement activities, included in the Site Safety Plan, and posted to facilitate emergency notifications.

Employees shall be trained in evacuation procedures in the event of work area emergencies.

2.9.1.1 For non-life-threatening situations, employees injured or otherwise incapacitated shall decontaminate themselves following normal procedures with assistance from fellow workers, if necessary, before exiting the work area to obtain proper medical treatment.

2.9.1.2 For life-threatening injury, worker decontamination shall take least priority after measures to stabilize the injured worker, remove him from the work area, and secure proper medical treatment.

2.9.1.3 Before the Contractor starts abatement activities, the Owner’s designated site manager, building contact, or other designated building occupants should be informed of the danger of entering a contaminated work area. The Contractor shall make every effort to help security and other agencies (i.e., local Police and Fire Departments, local hospitals, etc.) form plans of action should their personnel need to enter contaminated work areas, and to assist during emergencies.


Each work area shall have the telephone numbers of all emergency response personnel prominently posted in the clean/change room outside the worker decontamination enclosure system along with location of the nearest telephone.

2.10 SITE SECURITY

The Contractor shall post adequate warning signs at each entrance to the work area and at the waste disposal receptacle or vehicle (during loading and unloading) as required by EPA and OSHA.

The Contractor shall maintain a daily sign-in sheet for all asbestos workers and supervisors employed or subcontracted by the Contractor, and a separate sign-in sheet for all authorized visitors at each asbestos hazard abatement work area. The Contractor shall report entry into the work area by any unauthorized individuals immediately to the Owner’s representative or Consultant.

The Contractor shall be responsible for site security in each regulated work area during all asbestos hazard abatement activities in order to protect work efforts and equipment. The Owner shall maintain security of the facility after work hours.

The Contractor shall have the Owner's assistance in notifying building occupants of impending asbestos hazard abatement activity and enforcement of restricted access by Owner's employees.

2.11 PARKING

There shall be a designated parking space for Contractor's vehicles near the building for the use of transportation of materials and asbestos waste. The Contractor's employees’ vehicles shall be permitted to park in locations approved by the Owner. The temporary location of roll-off boxes near the building for ACM waste materials shall be approved by the Owner before boxes are delivered to the site.

3.0 MATERIALS AND EQUIPMENT

3.1 MATERIALS

3.1.1 Material Delivery

3.1.1.1 All materials shall be delivered in the original packages, containers, or bundles bearing the name of the manufacturer and the brand name. Material Safety Data Sheets (MSDS) shall be required for all materials brought on site by the Contractor.

3.1.1.2 All materials subject to damage shall be stored off the ground, away from wet or damp surfaces, and under sufficient cover to prevent damage or contamination.

3.1.1.3 Damaged or deteriorating materials shall not be used and shall be removed from the premises. Material that becomes contaminated with asbestos shall be disposed of in accordance with applicable regulations.


3.1.2 Plastic Sheeting

Plastic sheeting for covering walls and stationary objects shall be a minimum of 4-mil thick. For floors and all other uses, sheeting of at least 6-mil thickness shall be used. All plastic sheeting shall be sized in appropriate lengths and widths to minimize the frequency of joints. Plastic sheeting used for worker decontamination enclosure systems shall be opaque or black in color.

3.1.3 Tape

Tape must be capable of sealing joints of adjacent plastic sheets, capable of attaching plastic sheets to finished or unfinished surfaces of dissimilar materials, and capable of adhering under dry and wet conditions, including use of amended water. NOTE: Paper-type masking tape shall not be allowed on this project.

3.1.4 Surfactant

A commercially available asbestos wetting agent/surfactant, or a surfactant consisting of 50 percent polyoxyethylene ether and 50 percent polyoxyethylene ester, or equivalent, shall be mixed with water to provide a concentration of one ounce surfactant to five gallons of water, or mixed and used according to the manufacturer's specifications.

3.1.5 Impermeable Containers

Impermeable containers must be suitable for receiving and retaining any asbestos-containing or contaminated materials. Metal or fiber drums with tight-fitting lids are required for all metal-containing wastes (i.e., metal lathe, wire, metal jackets, etc.). Plastic bags, 6-mil thick, are acceptable for friable asbestos and mixed fiberglass/asbestos insulation without metal components capable of penetrating the bags. The containers shall be labeled in accordance with 29 CFR 1926.1101, 49 CFR Parts 171 and 172, and 40 CFR Part 61, Subpart M. Containers shall be both air and watertight and acceptable to the landfill operator.

3.1.6 Encapsulants

Encapsulating sealants (applied to exposed ends/edges of remaining ACM or to inaccessible ACM that cannot be removed) shall be the bridging or penetrating type capable of adhering permanently to the ACM and/or substrate and not interfering with the adhesion of newly applied materials.

3.1.6.1 Encapsulants selected for use by the Contractor shall be one of those demonstrating effective performance under the tests conducted by Battelle Laboratories for the EPA or one specifically formulated and acceptable for safe use on ACM, and compliant with applicable codes and requirements.

3.1.6.2 The encapsulant shall not add any toxic substances to the ACM and shall not break down under direct flame impingement to release any toxic gases or an undue amount of smoke.

3.1.6.3 The encapsulant shall be capable of adhering to the substrate surface.

3.1.6.4 The encapsulant shall be applicable with minimum effort and skill.


3.1.6.5 The encapsulant shall have impact resistance, flexibility, and resistance to penetration to withstand physical contact.

3.1.6.6 The encapsulant shall be water insoluble when cured.

3.1.6.7 The encapsulant shall be nontoxic, low or no odor, and free of toxic fumes during application and drying.

3.1.6.8 The encapsulant shall have sufficient aging characteristics to withstand normal atmospheric changes for a minimum of six years and still have sufficient surface integrity to allow recoating.

3.1.7 Warning Labels and Signs

As required by 29 CFR 1926.1101(k)(2)(iii), 29 CFR 1910.1001 (j)(2), and EPA Regulation 40 CFR 61.150 (a)(1)(v).

3.1.8 Glovebags

Glovebags may be used to remove ACM from straight runs of piping, elbows, and other connections. Glovebags shall be made of 6-mil thick plastic and shall be seamless at the bottom as specified in 29 CFR 1926.1101. Use glovebags in accordance with the prescribed work practices specified in 29 CFR 1926.1101(g)(5)(ii) and (iii).

3.1.9 Plexiglas

The Contractor shall install Plexiglas partitions or windows in doorways or containment barriers around abatement areas (where feasible or as directed by the Owner or Consultant). This is so the owner, project representatives, and/or other visitors can observe abatement activities without actually having to enter into the regulated work area.

3.1.10 Other Materials

The Contractor shall provide all other materials, such as lumber, nails and hardware that may be required to construct and dismantle the decontamination area and the barriers that isolate the work area.

3.2 EQUIPMENT

3.2.1 Equipment

The Contractor shall provide equipment suitable and necessary for asbestos hazard abatement projects. All abatement equipment (i.e., scrapers, AFDs, scaffolding, etc.) delivered on site must be free of asbestos contamination. Should the Owner or on-site Consultant suspect asbestos contamination on any piece of equipment, the Contractor shall immediately wrap the equipment in two layers of 6-mil poly prior to proceeding to the decontamination chamber. In the event of discrepancies concerning the content of the contamination (i.e., asbestos vs. non-asbestos), the Contractor shall bear the full expense of surface tape and or wipe sampling performed by the Owner and/or Consultant.


3.2.1.1 Air Movement Equipment – Commercially available high-efficiency particulate air (HEPA) filtration equipment specially designed for asbestos abatement projects (in compliance with ANSI Z 9.2) shall be used to establish a negative-pressure system. No air movement system or air equipment shall discharge asbestos fibers outside the work area into the building. The exhaust air from HEPA-filtered exhaust units shall be discharged to the outside air and not into other building areas.

3.2.1.2 A negative air pressure shall be established in the work area by means of mechanical exhaust equipment in order to keep airborne fibers confined to the work area, decrease humidity and temperature, reduce fiber levels in the work area, and achieve acceptable final air monitoring results. The mechanical equipment shall exhaust through a HEPA filter to the outside of the building. The equipment shall be in operation continuously, 24 hours a day, seven days per week, until decontamination of the work area and final air sampling and analysis are completed. Negative-air-pressure systems will be required in all Class I or Class II asbestos abatement work areas where conventional, mini-containment or glovebag methods are used for the removal of ACM.

3.2.1.3 Negative-air-pressure containment systems shall be established in accordance with Appendix F to 29 CFR 1926.1101: Work Practices and Engineering Controls for Class I Asbestos Operations.

3.2.2 Airless Sprayer

An airless sprayer shall be used for the application of amended water and encapsulant.

3.2.3 Scaffolding and Ladders

Scaffolding and fiberglass ladders shall be used as required to accomplish work specified in Part 1 and shall meet or exceed all applicable safety regulations.

3.2.4 Vacuums

All vacuums utilized to clean up ACM inside or outside of work areas shall be the commercial/industrial type equipped with HEPA-filters and designed for asbestos use.

3.2.5 Miscellaneous Tools and Equipment

The Contractor shall provide all other tools suitable for the stripping, removal, encapsulation, and replacement of thermal insulating materials. These tools include, but are not limited to, scrapers, wire cutters, brushes, sprayers, sponges, utility knives, flexible wire saws, shovels, and brooms.

3.2.6 Digital Pressure Differential Meter

The Contractor shall install and use a digital pressure differential meter, datalogger, magnehelic gauge with a strip chart recorder (capable of detecting a pressure differential of –0.02 in. water) to continuously measure and display the pressure differential between the clean area and work area, except in mini-containment enclosures where the pressure differential may be verified by other means. A pressure differential meter shall be required for each work area.


3.2.7 Use of Owner’s Tools and Equipment

The Contractor shall not use tools or equipment of the Owner, unless permission in writing is granted by the Owner’s representatives.

3.2.8 Line of Communication

The superintendent/foreman of the abatement Contractor shall be equipped with a voice or digital pager or cellular telephone so that lines of communications can remain open and unimpeded.


4.0 EXECUTION

4.1 SEQUENCE OF EXECUTION

4.1.1 Class I Asbestos Work – General Requirements

4.1.1.1 A competent person, as defined in Section 2.3, must supervise work during Class I asbestos activities. The competent person shall provide on-site project supervision and remain on site continuously for the duration of the asbestos abatement activities from project start to finish.

4.1.1.2 The Contractor must conduct asbestos removal and work area decontamination for all Class I asbestos work within a negatively-pressurized enclosure (NPE), mini-enclosure, or glovebag methods consistent with work practices and procedures specified in OSHA 29 CFR 1926.1101(g) and all other applicable requirements for Class I asbestos work. A contiguous three-chambered decontamination enclosure system for entry and egress will be required for enclosures in which the quantities of ACM specified for removal are greater than 25 linear feet or 10 square feet.

4.1.1.3 Total conventional containment or NPE shall be used for the removal of any regulated friable ACM including, but not limited to the following, surfacing material, thermal system insulation, and miscellaneous ACM.

4.1.1.4 The glovebag method is intended to be used for the removal of designated pipe runs or small sections of pipe or fitting insulation where conventional total containment is not feasible or practical, and where sections of pipe insulation are accessible for the proper installation and use of glovebags. (Longer lengths of TSI on pipes could also be removed by the conventional total containment method.)

4.1.1.5 Other appropriate methods (i.e., negative pressure glovebag, mini-enclosure, wrap and cut, etc.) will be permitted where feasible and only with prior approval from the Consultant.

4.1.1.6 Applicable sections of OSHA 29 CFR 1926.1101 outlining specific control methods for Class I asbestos work are listed as follows:

• 29 CFR 1926.1101(g)(5)(i) – Negative-Pressure Enclosure (NPE) Systems

• 29 CFR 1926.1101(g)(5)(ii) – Glovebag Systems

• 29 CFR 1926.1101(g)(5)(iii) – Negative Pressure Glovebag Systems

• 29 CFR 1926.1101(g)(5)(vi) – Small walk-in enclosure (mini-enclosure, no more than two people inside)


4.1.2 Sequence of Execution for Class I Asbestos Work (Conventional Total Containment)

Removal of ACM by the conventional (total) containment method shall be executed in the following sequence:

4.1.2.1 Prepare all work areas per Article 4.3, as applicable.

4.1.2.2 Strip and remove ACM in designated areas per 4.4, as applicable

4.1.2.3 Remove and discard asbestos-containing waste generated from abatement activities per Article 4.5. Removal and disposal of ACM shall be performed concurrently with the stripping.

4.1.2.4 Decontaminate and clean work area per Articles 4.6 and 4.7.

4.1.2.5 Encapsulate substrates and building surfaces with a compatible lockdown sealant as specified per Article 4.8.

4.1.2.6 Meet final clearance criteria for each work area per Article 4.9.

4.1.2.7 Reestablish building systems in proper working order, or as originally found per Article 4.10

4.1.3 Sequence of Execution for Class I Asbestos Work (Glovebag Method)

Removal of ACM by the glovebag method shall be executed in the following sequence:

4.1.3.1 Prepare all work areas per Article 4.3, as applicable.

4.1.3.2 Install glovebags around pipes in specified areas as designated in these specifications. PVC or polyethylene glovebags shall be connected to sections of pipe insulation that will fit into one glovebag. Glovebags shall not be reused, loosened at the shoulders, moved along a pipe, and reinstalled to remove another section of pipe insulation. No glovebags shall be connected to one another shoulder-to-shoulder or connected to one another with plastic extension sleeves unless continuous negative air pressure is provided to the glovebags throughout the abatement procedure.

4.1.3.3 Strip and remove ACM in designated areas per 4.4, as applicable

4.1.3.4 Remove and discard asbestos-containing waste generated from abatement activities per Article 4.5.


4.1.3.6 Encapsulate substrates and building surfaces with a compatible lockdown sealant as specified per Article 4.8.




4.2 CLASS II ASBESTOS OPERATIONS —ENGINEERING CONTROLS AND WORK PRACTICES (FOR REMOVAL OF ASBESTOS-CONTAINING WINDOW CAULKING AND TRANSITE)

4.2.1 Class II Asbestos Operations – General Requirements

4.2.1.1 Class II asbestos work must be supervised by a Competent Person, as defined in Section 2.3. The Competent Person shall provide on-site project supervision and remain on site for the duration of asbestos abatement activities from project start to finish.

4.2.1.2 The use of negatively-pressurized containment is not required for the removal of nonfriable ACMs (Class II Asbestos Work) provided the ACMs are not rendered friable during removal.

4.2.1.3 Engineering controls and work practices for Class II asbestos work involving the removal of nonfriable ACM shall conform with OSHA 29 CFR 1926.1101(g)(7) and (8) and all other applicable requirements for Class II asbestos work. Critical barriers, other barrier or isolation methods, impermeable drop cloths, and intact removal are required in each work area. Remove all ACM without damaging or otherwise rendering the ACM friable.

4.2.1.4 Applicable sections of OSHA 29 CFR 1926.1101outlining additional controls and work practices required during removal of specific types of nonfriable ACM are listed as follows:

• 29 CFR 1926.1101(g)(8)(i) – Asbestos-containing flooring (i.e., floor tile, mastic, linoleum, etc.)

• 29 CFR 1926.1101(g)(8)(v) – Other Class II removal (i.e., Transite)

4.2.2 Sequence of Execution for Class II Asbestos Work involving the removal of Nonfriable ACM

Removal of nonfriable ACM shall be executed in the following sequence:

4.2.2.1 Prepare work area per Article 4.3, as applicable.

4.2.2.2 Remove ACM in designated areas per 4.4, as applicable

4.2.2.3 Remove and discard asbestos-containing waste generated from abatement activities per Article 4.5.


4.2.2.5 Encapsulate substrate building surfaces with a compatible lockdown sealant as specified per Article 4.8.




4.3 PREPARATION

4.3.1 Work Area Preparation

Prepare each work area in the following order:

4.3.1.1 Shut down and lock out electric power to all work areas where applicable. The Contractor shall be allowed to use existing power in the building to the extent that it is available for use. The Contractor shall provide temporary power (if not available for use) and lighting, and ensure safe installation of temporary power services and equipment, as specified in applicable electrical code requirements. Provide ground-fault interrupt circuits at a power source for electrical equipment. The Owner’s licensed electricians shall perform all modifications to the building’s electrical system. The Owner shall not hook up faulty electrical panels delivered on site for use on this project.

4.3.1.2 Shut down and isolate heating, cooling, and ventilating air systems such as, but not limited to, fans, air handlers, and unit ventilators to prevent contamination of the units and fiber dispersion to other areas of the structure. Seal all electrical components and equipment tightly to prevent moisture or water damage. During the work, vents within the work area shall be sealed with tape and 6-mil plastic sheeting.

4.3.1.3 The Contractor shall be responsible for the removal and decontamination of any movable equipment that may be contaminated.

4.3.1.4 Install HEPA-filtered air filtration devices in the work area and vent exhaust ducts through openings to the outside of the facility. Seal openings around exhaust ducts. No exhaust from the negative air filtration equipment shall be allowed to be discharged within the building.

4.3.1.5 Introduce scaffolding, ladders, and other large equipment into the work area and install the worker and equipment decontamination enclosure systems per Article 4.3.2. Once the decontamination enclosure systems are in place, they shall be used as specified for the entrance and exit of all personnel and equipment.

4.3.1.6 Seal off all openings (including but not limited to corridors, doorways, windows, skylight, ducts, diffusers, and any other penetrations of the work area) with plywood and/or 6-mil plastic sheeting sealed with tape. Doorways and corridors that will not be used for passage during work shall be sealed with barriers per Article 4.3.2.4.

4.3.1.7 Preclean contaminated movable objects (such as desks and chairs, etc.) within the work area using HEPA filtered vacuums and wet cleaning methods. Remove the decontaminated furniture from the work area and store in an uncontaminated area of the facility or as directed by the Owner.

4.3.1.8 Preclean fixed objects within the proposed work area (such as but not limited to shelving, bookcases, hot water heaters, pumps, radiators, unit ventilators, fans,


ductwork, and motors) using HEPA filtered vacuums and/or wet cleaning methods as appropriate, and enclose with 4-mil (minimum) plastic sheeting sealed with tape.

4.3.1.9 Remove and wet wipe and/or HEPA vacuum ceiling mounted objects (such as lights, speakers, and other items not previously sealed off) that could interfere with asbestos hazard abatement activities. Any item remaining in the work area shall be enclosed with 6-mil plastic sheeting sealed with tape.

4.3.1.10 For Class I Asbestos Work, cover all floors with a minimum of two layers of 6-mil plastic sheeting sealed with tape. Cover floors with plastic extending at least 12 inches up on all walls. Cover all walls with a minimum of one layer of 4-mil plastic sheeting and overlap floors sheeting by at least 24 inches. Install a 6-mil poly drop cloth in all work areas undergoing asbestos abatement, including glovebag work areas. In addition, drop cloths with a minimum thickness of 6-mil shall be installed in all staging areas and commonly traveled areas. Seal all joints with tape and/or spray adhesive. Location and methods of attachment of plastic sheeting to finished surfaces shall be approved by the Owner in advance.

Floor drains shall be blocked and covered during ACM removal and cleanup to prevent discharge of asbestos to the sewer system. The floor drains may be reopened after all ACM and visible debris is removed, cleanup is complete, and when authorized by the Consultant to facilitate final cleaning.

4.3.2 Decontamination Enclosure Systems

4.3.2.1 General

Build suitable framing and/or use existing rooms connected with framed-in tunnels, if necessary, and line with plastic sealed with tape at lap joints for all enclosures and decontamination enclosure systems rooms. Either existing rooms outside of the work area or specially framed and sealed temporary areas shall be used for the decontamination enclosure system. Convenience and proximity to the work area shall be the determining factors. In all case, access between contaminated and uncontaminated rooms or areas shall be through a series of double-layered, plastic-draped doorways or an airlock.

4.3.2.2 Worker Decontamination Enclosure System

Construct a worker decontamination enclosure system contiguous to the work area that consists of three totally enclosed chambers as follows:

• An air lock with two curtained doorways (no less than six feet apart): one to the work area and one to the equipment room.

• A shower room with two curtained doorways – one to the equipment room and one to the clean room. One shower shall be provided for every 10 workers or fraction thereof as required by 29 CFR 1910.141(d)(3). To ensure against potential leakage, a metal pan with a minimum three-inch lip shall be installed underneath each shower facility. Ensure soap is available at all times in the shower room. The shower wastewater shall be drained, collected, and filtered


through a system with at least five to 10 micron particle size collection capabilities. NOTE: A system containing a series of several filters with progressively smaller pore sizes is recommended to avoid rapid clogging of the filtration system by large particles. All expended filters shall be discarded as contaminated waste. Filtered water may be discharged into a sanitary or storm sewer drain.

• An air lock with two curtained doorways (no less than six feet apart): one to the shower room and one to the clean room.

• A clean room with one curtained doorway into the shower and one entrance or exit to uncontaminated areas of the building. The clean room shall have sufficient space for storage of workers' street clothes, towels, and other uncontaminated items.

• Use black or opaque plastic for the walls of the worker decontamination enclosure system to ensure the privacy of the workers.

4.3.2.3 Equipment Decontamination Enclosure System

The purpose of this area is to provide a means of decontaminating drums, plastic disposal bags, scaffolding, material containers, vacuum and spray equipment, and other tools and equipment for which the worker decontamination system is not suitable. The Contractor shall provide or construct an equipment decontamination enclosure system contiguous to the work area that consists of two totally enclosed chambers as follows:

• A washroom, constituting an airlock, with a curtained doorway to a designated area of the work area and a curtained doorway to the holding area. This area shall be the same as the equipment room in the worker decontamination enclosure system. The washroom wastewater shall be drained, collected, and filtered through a system with at least five to 10 micron particle size collection capabilities. NOTE: A system containing a series of several filters with progressively smaller pore sizes is recommended to avoid rapid clogging of the filtration system by large particles. All expended filters shall be discarded as contaminated waste. Filtered water may be discharged into a sanitary or storm sewer drain.

• A holding area, consisting of an airlock, with a curtained doorway to an uncontaminated area. This area shall be the same area as the shower room in the worker decontamination enclosure system.

• The equipment decontamination area shall be located so as to facilitate movement of asbestos waste to a loading area.

4.3.2.4 Separation of Work Areas

The Contractor shall use air-tight barriers to separate the parts of the building required to remain free of contamination from the parts of the building that will undergo asbestos abatement. The barriers shall be constructed as follows:


• Build suitable wood or metal frame.

• Cover the inside and outside of the frame with plywood and 6-mil plastic sheeting sealed with tape as specified.

• Install panels of Plexiglas plastic (as directed by the Owner) so abatement activities can be observed from outside rooms adjacent to the work area.

• Alternate barrier materials and construction methods may be used if approved by the Owner.

4.3.2.5 Maintenance of Enclosure Systems

• Ensure that barriers and plastic linings are effectively sealed and taped. The Contractor shall inspect all enclosure systems daily at the beginning of each work shift, and record the date and time of the inspection and any corrective action required. Repair damaged barriers and remedy defects immediately upon discovery.

• Continuously monitor and record negative air pressure with a pressure-differential meter.

4.3.2.6 Asbestos hazard abatement work shall not commence until:

• Arrangements have been made and approval granted for disposal of waste at an acceptable site.

• Work areas, decontamination enclosure systems and parts of the facility required to remain uncontaminated are effectively segregated. The on-site Competent person shall inspect the work area enclosure system daily to ensure that it is air and watertight. The Contractor shall immediately correct any deficiencies noted.

• Tools, equipment, and material waste receptors are on hand.

4.3.3 Negative-Air-Pressure Systems

4.3.3.1 The Contractor shall not deliver negative air filtration devices on the job site with used or previously installed HEPA filters. New HEPA filters shall be installed, according to the manufacturer's instructions, once delivered on site. Once the project has been successfully completed with all final clearance criteria being met, all negative air filtration devices shall have the HEPA filters removed and disposed of as asbestos-containing waste.

4.3.3.2 A pressure differential in the work area is required as outlined in 29 CFR 1926.1101. At a minimum, the air filtration devices shall provide for a complete air change every 15 minutes. Calculations used to determine the number of units required shall be based on current performance and not rated capacity. *NOTE: If actual cfm's are not measured, no more than seventy percent (70%) of the rated capacity shall be used.

The following formula shall be used for estimating the number of air filtration devices:


Number of units needed = ft.2 of work area x height of ceiling in ft. 15 minutes x cfm* capacity of units

4.3.3.3 The pressure differential shall be maintained so that the movement of tools, equipment, employees, and waste containers through the decontamination enclosure systems do not result in air flow out of the work area.

4.3.3.4 Air circulation throughout the work area shall be maintained by the air filtration devices to reduce dead air spaces and provide appropriate ventilation inside the work area. The Contractor shall install a pressure differential meter with a strip or dial chart recorder as described in Article 3.2.6. The meter and strip and/or dial chart recorder must show a measurable pressure differentiate between the work area and adjacent areas at a minimum of -0.02 inches of water. If the Contractor cannot maintain an adequate pressure differentiate inside the work area, all work shall be stopped until the problem is corrected.

4.3.3.5 The on-site Consultant may collect air samples outdoors where the air filtration devices discharge air. If the air sample analyses indicate that the air filtration devices are discharging fiber concentrations outside of the building in concentrations higher than typical outdoor ambient concentrations, the Contractor shall immediately repair or replace the defective unit or the defective components to eliminate the discharge of fibers from the work area.

4.3.3.6 Air filtration devices shall not discharge air outside the building near pedestrian walkways.

4.4 ASBESTOS REMOVAL PROCEDURES

4.4.1 Work Area Preparation

Prepare each work area as specified per Section 4.3.

4.4.2 Pipe Insulation Removal – Conventional Containment Method

This section applies to thermal pipe insulation removed in conventional containment environments without the use of glovebags or in mini-containments. The asbestos material around pipes shall be removed in small sections. The cloth jacketing on the pipe insulation shall be cut along the top seam to allow the wetting of the insulation with amended water. At the top seam, the insulation shall be sprayed thoroughly with amended water prepared in accordance with manufacturer's specifications. The sections shall be parted and the inside of the insulation thoroughly wetted. The cloth cover shall be cut around the circumference of the section being removed and lowered carefully and not allowed to drop to the floor. The material shall be wetted again before placing inside appropriate sealable containers. All pipe surfaces (including elbows, support rods, and valves) shall be cleaned thoroughly with damp sponges, scrubbing pads, brushes, or cloths until they are visibly clean. The next section of thermal system insulation shall be removed following the same procedures. Containers that become full shall be sealed and readied for transportation to an approved disposal site.


4.4.3 Pipe and Pipe Fitting Insulation Removal (Glovebag)

Prior to hanging any glovebags, all loose and friable material adjacent to the glovebag area shall be wrapped and sealed in two layers of 6-mil poly. After the required hand tools and equipment are assembled, a polyethylene glovebag shall be installed, according to the manufacturer's instructions and 29 CFR 1926.1101(g)(5)(ii)(B), on a small section of asbestos-containing thermal system insulation to be removed. All necessary tools and equipment shall be inserted into the bag before sealing the bag to the pipe. The exterior cover on the pipe insulation shall be cut and opened to allow thorough wetting of the insulation with amended water by inserting the nozzle of a portable sprayer into the bag. After the insulation has been opened and thoroughly wetted, the exterior cover, if any, shall be cut around the circumference of the section being removed. After removal of the insulation material, all material shall be contained in the lower compartment of the bag and thoroughly saturated. The inside of the glovebag and pipe shall be washed down with amended water, wet wiped and encapsulated. All tools shall be washed thoroughly before they are removed through the gloves of the bag. The glovebag shall then be evacuated with the portable HEPA filtered vacuum. While the bag is collapsed, it shall be squeezed below the tool pouch and twisted. The bag shall be sealed with tape or locking ties to separate the waste from the removal compartment. The glovebag shall be cut along the top and sides and removed from the pipe. The glovebag shall then be placed in the appropriate disposal container.

NOTES: 1) At least two persons shall perform all glovebag work per 29 CFR 1926.1101, and 2) Glovebags shall not be used on surfaces with temperatures exceeding 150o.

Some piping lines in the Power House Building will remain active and continue to carry materials flows (e.g., steam, hot water, cold water, etc.) during the abatement schedule. The Contractor shall not use the “Wrap and Cut” method of ACM removal unless authorized for specific lines or components in writing by the Owner’s Representative or designee. If so authorized, the Owner shall be responsible for ensuring that designated lines are deactivated, depressurized, and drained prior to cutting or dismantling by the Contractor.

4.4.4 Transite Removal

Transite pipe and identified Transite debris shall be thoroughly wetted with amended water prior to and during its removal. The Transite shall be removed in an intact state unless the Contractor demonstrates that intact removal is not possible. Cutting, abrading or breaking the material is prohibited. Nails or bolts shall be cut with flat, sharp instruments. Transite removed shall be immediately bagged or wrapped, or kept wetted until transferred to a close receptacle, no later than the end of the workshift.

4.4.5 Window Caulking/Glazing Removal

There are a total of 17 windows to remove. All have exterior asbestos-containing caulking around the perimeter and exterior asbestos-containing glazing compound around panes of glass. Poly or other resilient drop cloths or tarps shall be placed on the surfaces inside and outside the base of each window prior to the start of caulking or window removal. The dimensions of each drop cloth shall be large enough to catch any pieces of glazing compound or caulking that may fall or be dislodged from the window during removal and handling.


The two vertical and three horizontal aluminum structural support members in the large single window assembly on the east side of the building (Window Type 1) shall be left in place to help support the new replacement windows for this opening.

All friable exterior asbestos-containing window caulking adhering to any building wall components must be properly removed prior to window removal. The caulking appears to be applied to the interface of the window frames and the wall opening, but some caulking could extend under the frames and must be removed completely after each frame is removed. All visible caulking must be completely removed from all sides of each window opening.

Much of the exterior glazing compound is friable, damaged, cracked, and/or delaminating. Any loose pieces of glazing compound shall be removed via wet methods and/or HEPA vacuuming. It is permissible to remove the entire window assembly with intact glazing compound left in place so long as the window assemblies are handled carefully, all glazing compound is adequately wetted with amended water, and the contractor employs effective and compliant control methods to prevent further breakage and releases of glazing compound during removal of the window assemblies. Any loose pieces of asbestos glazing compound or caulking that are disturbed during window removal and fall to the drop cloths, floors, sills, other building surfaces, or the ground shall be wetted and placed in sealed containers as ACM waste or removed by HEPA vacuuming.

Once a window assembly is removed, it shall be wrapped tightly/sealed with at least two layers of 6-mil poly sheeting held in place with duct tape. Each wrapped window assembly shall be labeled appropriately as asbestos-containing waste and placed in a poly-lined dumpster, roll-off box, or other suitable container for transport to the approved landfill for disposal.

Each window opening shall be framed and covered with exterior-grade, weather-resistant plywood or other suitable sheathing. Window coverings shall be adequately constructed so as to prevent water intrusion, displacement by wind, and to prevent access by insects, birds, and other pests for a minimum period of two (2) years. The exterior interface between the sheathing and window opening shall be caulked with a non-asbestos caulking compound and the seams between the sheathing shall be leak tight. The Contractor shall paint the exterior of each covering with a minimum of two coats of exterior paint colored as directed by MSD. Paint type and color shall be approved by MSD and purchased by the Contractor.

4.4.6 General Decontamination

This Article shall apply to decontamination work to be performed under regulated work areas but not total containment work areas. Small deposits of previously damaged asbestos-containing material found on floors, fixtures, boxes, etc. shall be removed using HEPA filtered vacuum equipment and wet wipe methods in a 10-square-foot area surrounding the material, or as necessary to remove all visible ACM. The regulated area shall be visibly clean and free of all asbestos debris before proceeding to the next work area.

4.5 REMOVAL AND DISPOSAL OF ASBESTOS CONTAMINATED WASTE

• Fill disposal containers to a level that workers can handle safely and with ease so that the containers remain air- and water-tight.


• As disposal containers are filled, seal and move them into the staging area for decontamination through the equipment decontamination enclosure.

• If conventional removal practices are used, clean external surfaces of containers thoroughly by wet sponging in the designated areas of the work area that is part of the equipment decontamination enclosure system. Move containers to the washroom, wet clean each container thoroughly, and move them to the holding areas pending removal to uncontaminated areas. Place decontaminated, sealed plastic bags containing asbestos material into a second clean bag; twist the bag opening tightly, bend the twisted end downward, and seal with tape. Move all disposal containers to the holding area to await disposal at an approved landfill. Place caution labels on containers in accordance with 29 CFR 1926.1101, 49 CFR Parts 171 and 172, and 40 CFR Part 61, Subpart M. Ensure that containers are removed from the holding area by workers who have entered from uncontaminated areas dressed in clean coveralls; ensure that workers do not enter from uncontaminated areas into the washroom of the work area; and ensure that contaminated workers do not exit the work area through the equipment decontamination enclosure system.

• To prevent exceeding available storage capacity on site as the work progresses, remove sealed and labeled containers of asbestos waste to a roll-off box or other suitable receptacle designated for ACM waste, and dispose of such containers at an authorized disposal site in accordance with the requirements of the disposal authority and these specifications. Submit documentation regarding disposal to the Owner and the Consultant.

• After the waste containers are decontaminated, the Contractor may make arrangements for a hauler or truck driver from the waste disposal site to transport the asbestos waste and contaminated materials to the disposal site. Transportation of all materials from each work area shall be in accordance with all applicable DOT and EPA regulations.

• All asbestos-containing waste collected inside the work area shall be removed and items decontaminated before any cleanup work is started and before the isolation structures are dismantled.

• The Contractor shall dispose of all asbestos waste material in an EPA-approved landfill only. Appropriate notifications and provisions shall be made with each agency having jurisdiction over asbestos waste disposal.

• The Contractor shall ensure that all employees discarding or handling the regulated waste shall wear approved respiratory protection and protective clothing in accordance with these Specifications.

• In certain instances, plastic bags or fiber and metal drums may not be adequate or suitable to handle some ACM. As an alternative, the Contractor may remove ACM that is bulky or cumbersome in two layers of 6-mil plastic sheeting that is sealed tightly at all joints with tape and/or spray adhesive. The waste shall be properly labeled before transportation to the approved disposal site. All metal, brick and


mortar waste and nonfriable ACM that could tear or puncture plastic disposal bags shall be deposited and disposed of in air and watertight drums. All drums shall be appropriately labeled before transportation to the appointed disposal site.

4.6 CLEANUP AND DECONTAMINATION OF THE WORK AREA

4.6.1 Asbestos Cleanup

Remove visible accumulations of asbestos material and debris. Wet clean all surfaces within the work area.

4.6.1.1 Remove the plastic sheets from walls and floors only. The windows, doors, HVAC vents, and other equipment and penetrations shall remain sealed, and any HEPA air filtration systems and decontamination enclosure systems shall remain in service.

4.6.1.2 Clean all surfaces in the work area and any other contaminated areas with amended water and/or with HEPA filtered vacuum equipment. After cleaning the work area, wait 12 to 24 hours to allow dust to settle, and wet clean or clean with HEPA filtered vacuum equipment all surfaces in the work area a second time. After completion of the second cleaning operation, visually inspect the entire work area to ensure that it is free of visible asbestos dust and debris.

4.6.1.3 Sealed containers and all equipment used in the work area shall be included in the cleanup and shall be removed from work areas, via the equipment decontamination enclosure system, at an appropriate time in the cleaning sequence.

4.6.1.4 If the Owner and/or on-site Consultant find visible accumulations of asbestos debris in the work area after cleaning, the Contractor shall repeat the wet cleaning and/or HEPA vacuuming, at his own expense, until the work area is in compliance.

4.6.1.5 When a final inspection and air monitoring conducted by the Consultant determine that the area is free of accumulations of visible asbestos debris and airborne fibers, the decontamination enclosure systems shall be removed, all areas shall be thoroughly wet cleaned and materials from the equipment room and shower shall be disposed of as contaminated waste. A final check shall be carried out by the Owner and/or the on-site Consultant to ensure that no dust or debris remains on surfaces as a result of dismantling operations.

4.7 DETERMING ABATEMENT COMPLETION

4.7.1 Visual Inspection

4.7.1.1 The on-site Consultant shall conduct a thorough first visual inspection of each work area after the Contractor has indicated that all ACM has been completely removed. The first inspection shall be conducted before the plastic sheets have been cleaned with damp mops and cloths, but after all gross debris has been properly cleaned prior to the spray application of lockdown sealant to exposed surfaces.


4.7.1.2 Items to be checked during the first visual inspection shall include, but are not limited to, the following:

• The adequacy of the removal of ACM from the substrates.

• The presence of adhering material or accumulated material on exposed surfaces.

Only after the work area has passed the first visual inspection shall the Contractor be permitted to apply sealant materials.

4.7.1.3 After the work area has passed the first visual inspection, the Contractor shall apply the lockdown sealant to exposed surfaces and clean all surfaces in the work area and any other contaminated areas with water and/or with HEPA filtered vacuum equipment. The plastic sheets on the walls and floor may be sprayed with the sealant provided that all loose asbestos debris and dust has been removed from the plastic prior to spraying and that the plastic sheets are sufficiently clean in the judgment of the on-site Consultant to allow the sealant to effectively bond any residual material to the plastic. The Contractor shall wait 12 to 24 hours to allow the sealant to dry.

4.7.1.4 The on-site Consultant shall conduct a second visual inspection of the work area after application of the sealant. Items to be checked during the second visual inspection shall include, but are not limited to, the following:

• Cleanliness of the work area and decontamination areas; accumulations of loose dust or debris on plastic sheets covering surfaces, walls, and floors.

• Complete coverage of the exposed surfaces by the lockdown sealant.

• The on-site Consultant may, at their discretion, use an electric leaf blower during the inspection to dislodge or discover any hidden debris that should have been removed. It is strongly recommended that the Contractor perform this procedure himself in each work area before notifying the Owner and/or on-site Consultant that the area is clean and ready for inspection. If visible dust or debris is discovered during the inspection, the Contractor shall wet clean the entire work area again until the Owner and/or on-site Consultant is satisfied that all visible dust or debris has been removed.

• If any accumulation of dust or debris is observed, the Contractor shall be required to wet clean and/or HEPA vacuum the work area again and repeat the inspection procedures.

4.7.1.5 After the work area has passed the second visual inspection, the Contractor shall remove the plastic sheets from walls and floors only. The windows, doors, and HVAC vents shall remain sealed. All HEPA-filtered negative-air-pressure systems, air filtration and decontamination enclosure systems shall remain in service. After an adequate waiting period of 12 to 24 hours, the Contractor shall wet clean or HEPA vacuum all objects and finish surfaces in the work area.


The on-site Consultant shall conduct a third thorough visual inspection of the work area to ensure that it is free of visible dust after completion of the final cleaning operation. After the work area has passed the third visual inspection and the walls, floors, and all exposed surfaces are dust free, final air monitoring shall be performed by the on-site Consultant as described in Section 4.9. Only after the work area meets the air testing criteria specified in Section 4.9 shall the Contractor be permitted to proceed with the next phase of work.

4.8 SEALANT APPLICATION FOR LOCK DOWN

In all areas where ACM were removed, an approved sealant shall be used to lock down any residual airborne asbestos fibers to the substrate and to prevent subsequent dispersion or resuspension. The lockdown sealant shall be compatible with any specified non-ACM replacement material (if one is to be applied) and shall not interfere with the adhesion of any newly applied materials.

The sealant shall be applied to unfinished walls, floor deck, plastic sheeting, and other applicable surfaces. Sealant shall not be applied to dirt floors, mechanical and electrical equipment, or to finished surfaces.

The sealant shall be applied with low-pressure airless spray equipment.

The sealant shall be used and applied in strict accordance to manufacturer's specifications.

The Contractor shall apply a thin, visible, contiguous film of sealant to all areas specified. Additional applications shall be required if the first application does not adequately cover the substrates or lock down residual airborne asbestos fibers.

4.9 FINAL AIR MONITORING

4.9.1 Final Air Tests

Final air tests shall be performed to determine and document air quality upon completion of all asbestos hazard abatement projects. The on-site Consultant shall perform the final air tests after the work area has passed the final visual inspection. Fans or blowers shall be used to circulate air in the work area during the final air tests to simulate building use conditions (aggressive sampling). Samples shall be collected by use of high-volume electric sampling pumps calibrated up to a maximum flow rate of 10 liters/minute. Final clearance air samples shall be collected and analyzed using phase-contrast microscopy (PCM) and/or transmission electron microscopy (TEM) as described below:

4.9.1.1 Acceptable Final Clearance Concentrations by PCM

Work areas involving less than 160 square feet and/or 260 linear feet of ACM to be removed shall have PCM samples collected form several locations inside of the work area and in the adjacent equipment and worker decontamination areas. At least five area samples shall be analyzed by PCM using Method No. 7400. The total airborne fiber concentrations for each sample location collected inside of the work area must be less than or equal to 0.01 fibers per cubic centimeter of air (f/cc). If any air sample concentration in the work area is greater than 0.01 f/cc, the Contractor shall wait 12 to


24 hours from the end of the air-sampling period and clean the work area again with HEPA filtered vacuum equipment and damp cloths and mops. A new set of air samples for the entire work area shall be collected and analyzed by the on-site Consultant at the Contractor's expense until the acceptable fiber concentration of 0.01 f/cc for each sample has been achieved.

4.9.1.2 Acceptable Final Clearance Structures by TEM

At the discretion of the Owner and Consultant, the work area may be cleared by TEM sampling and analysis. The TEM air samples may be collected and analyzed after the work area has successfully passed the final visual inspection and clearance criteria by PCM or after the work area has failed PCM clearance (due to the possible presence of non-asbestos fibers). A minimum of five air samples from within the work area and three blanks shall be collected and analyzed by TEM in accordance with an EPA recommended protocol (40 CFR, Part 763, Appendix A, Mandatory TEM Method). The collection of five samples from outside the work area or affected functional space is at the discretion of the Consultant and typically is not performed unless there is a reason to suspect that there may be elevated levels of asbestos fibers/structures outside regulated work areas.

The following sequence is outlined to minimize the number of analyses needed to conclude an asbestos hazard abatement project completion:

• Analyze the five work area samples.

• If at least 1,199 L of air for a 25-mm filter or 2,799 L of air for a 37-mm filter is collected for each work area sample, and the arithmetic mean concentration of asbestos structures per square millimeter of filter is less than or equal to 70 structures/square millimeter, the abatement work is complete and no further analysis shall be required.

• If less than 1,199 L of air for a 25-mm filter or 2,799 L of air for a 37-mm filter is collected for any of the inside samples, or the arithmetic mean concentration of structures per square millimeter of filter is greater than 70 structures/square millimeter, analyze the three blanks.

• If the arithmetic mean concentration of structures per square millimeter on the blank filters is greater than 70 structure/square millimeter, terminate the analysis, identify and correct the source of blank contamination, and collect a new set of samples.

• If the arithmetic mean concentration of structures per square millimeter on the blank filters is less than or equal to 70 structure/square millimeter, (at the Consultant’s discretion) analyze the outside samples and perform the Z-test to compare inside versus outside air sample concentrations.

• If the Z-statistic is less than or equal to 1.65, the asbestos hazard abatement work is complete. If the Z-statistic is greater than 1.65, the Contractor shall reclean the work area and a second set of TEM samples shall be collected and


analyzed at the Contractor's expense until the clearance criteria has been satisfied

4.10 REESTABLISHMENT OF OBJECTS AND SYSTEMS

4.10.1 Floor Drains

The Contractor shall ensure all floor drains in each former work area are not obstructed following asbestos hazard abatement activities. The Contractor shall be charged by the Owner for all drains found to be obstructed.

4.10.2 Equipment

The Contractor shall not be responsible for returning equipment previously moved by the Owner to their original locations.

4.10.3 Floors

The Contractor shall vacuum and mop all floor surfaces used during any phase of the project. The Contractor prior to departure from the job site shall remove all general construction waste and/or trash generated by the project. Any non asbestos-containing demolition debris generated by the Contractor during ACM abatement shall be removed from the building by the abatement Contractor.


TABLE 1

INVENTORY OF ASBESTOS-CONTAINING MATERIALS SPECIFIED FOR REMOVAL

Table 1. Inventory of Asbestos-Containing Materials Specified for Removal

Metropolitan Sewer District, Power House Building Cincinnati, Ohio

August 2007

Material Description Location Quantity

First Floor

Thermal system pipe insulation on small diameter lines (<6-inches) Corner of Switchgear

Room 20 lf.

Thermal system pipe insulation on overhead supply and return lines for suspended area heaters

Generator Room 465 lf.

Thermal system pipe insulation on hot water/steam distribution lines associated with Generators 1 through 4

Generator Room 240 lf.

Thermal system insulation and asbestos contaminated wire mesh on horizontal generator exhaust stacks leading from generators to mufflers.

Generator Room 560 ft.2

Transite pipe associated with Generator 4 Generator Room 8 lf.

Transite debris Generator Room 4 ft.2

Mezzanine

Thermal system insulation and asbestos contaminated wire mesh on generator exhaust mufflers

Generator Room Mezzanine 800 ft.2

Thermal system insulation and asbestos-contaminated wire mesh on vertical generator exhaust stacks

Generator Room Mezzanine 400 ft.2

Thermal system pipe insulation on large diameter lines (>12-inches) Generator Room

Mezzanine 325 lf.

Thermal system pipe insulation on various hot water/steam distribution lines (<12-inches)

Generator Room Mezzanine 225 lf.

Basement

Thermal system pipe insulation on large diameter lines throughout basement(>12 inches)

Basement Level Generator Room

1,575 lf.

Thermal system pipe insulation on small diameter lines throughout basement (<12 inches)

Basement Level Generator Room

625 lf.

Thermal system insulation on heat exchangers Basement Level Generator Room

400 ft.2

PN 0241.006 BHE Environmental, Inc.

Table 1. Inventory of Asbestos-Containing Materials Specified for Removal

Metropolitan Sewer District, Power House Building Cincinnati, Ohio

August 2007

Exterior

Windows to remove with asbestos-containing glazing compound Dimensions Number

Type 1 15 ft.W x 27 ft.H 1

Type 2 12 ft.W x 6.25 ft.H 4

Type 3 16 ft.W x 6.25 ft.H 6


Type 5 8.5 ft.W x 8.5 ft.H 4


Window caulking Around perimeters of

all windows

1,025 lf. (estimated total lnft.)



TABLE 2

CONFIRMATORY BULK SAMPLE ANALYTICAL RESULTS

Table 2. Confirmatory Bulk Sample PLM Analysis Results Metropolitan Sewer District, Power House Building

Cincinnati, Ohio

I.D. Sampled Material % Asbestos

A1 Air-cell pipe insulation 60% Chrysotile



A8* Preformed block pipe insulation (2 parts) 9.4% Amosite 31% Chrysotile

A8 (A) White insulation 15% Amosite 15% Chrysotile

A8 (B) Tan fibrous wrap with inseparable tar 1% Amosite 55% Chrysotile

A15* Layered paper pipe insulation (3 parts) 2.6% Chrysotile

A15 (A) Tan fibrous insulation 4% Chrysotile

A15 (B) Felt ND

A15 (C) Woven wrap ND

A16* Layered paper pipe insulation (3 parts) 3.5% Chrysotile

A16 (A) Tan fibrous insulation 5% Chrysotile

A16 (B) Felt ND

A16 (C) Woven wrap ND

A5* Cementitious fitting on fiberglass insulated line (2 parts) ND

A6* Cementitious fitting on fiberglass insulated line (2 parts) ND

MSD-A-5* Cementitious fitting on fiberglass insulated line (2 parts) Trace <1% Chrysotile

A3 Cementitious insulation on muffler exhaust line 35% Chrysotile

A4 Cementitious insulation on muffler 45% Chrysotile

A7 Interior concrete insulation ND

A10 Cementitious insulation on heat exchanger tank 55% Chrysotile

A11* Sealant on canvas on square tank (3 parts) ND



Cincinnati, Ohio


A12* Sealant on canvas on square tank (2 parts) ND

MSD-A-1* Cementitious insulation on square tank (3 parts) ND

MSD-A-2* Cementitious insulation on square tank (3 parts) ND

A13 Cementitious insulation on seams of round tank ND

A14 Cementitious insulation on seams of round tank ND

MSD-A-3 Cementitious insulation on round tank ND

MSD-A-4 Cementitious insulation on round tank ND

MSD-A-6* Window glazing (2 parts) 1.8% Chrysotile

MSD-A-6 (A) Gray window glazing 2% Chrysotile

MSD-A-6 (B) Silver paint ND

MSD-A-7 Window glazing ND

MSD-A-8 Window caulk 10% Chrysotile

MSD-A-9 Window caulk 8% Chrysotile

A17* Lower roof membrane (3 parts) ND

A18* Lower roof membrane (3 parts) ND

A19* Lower roof flashing (4 parts) 13.9% Chrysotile

A19 (A) Silver paint with tar 8% Chrysotile

A19 (B) Brown felt with woven material 45% Chrysotile

A19 (C) Black felt ND

A19 (D) Tar ND

A20* Lower roof flashing (4 parts) 14.2% Chrysotile

A20 (A) Silver paint with tar 10% Chrysotile

A20 (B) Brown felt with woven material 55% Chrysotile

A20 (C) Black felt ND



Cincinnati, Ohio


A20 (D) Tar ND

A21* Upper roof membrane (3 parts) ND

A22* Upper roof membrane (3 parts) ND

A23* Upper roof flashing (3 parts) ND

A24* Upper roof flashing (3 parts) ND



FIGURES 1 THROUGH 7

FLOOR PLANS OF THE POWER HOUSE BUILDING SHOWING LOCATIONS OF IDENTIFIED ACM SPECIFIED FOR REMOVAL

DRAWING NOTES TYPES AND ESTIMATED QUANTITIES OF RACM TO BE REMOVED ARE LISTED IN THE TABLE. THE CONTRACTOR IS RESPONSIBLE FOR CONFIRMING ACTUAL QUANTITIES PRESENT. ASB-1 THE CONTRACTOR SHALL REMOVE ALL ASBESTOS-CONTAINING AIR-CELL,

LAYERED PAPER, AND PREFORMED BLOCK THERMAL SYSTEM INSULATION FROM PIPES AND MECHANICAL COMPONENTS BY CONVENTIONAL CONTAINMENT AND/OR GLOVEBAG METHODS IN ACCORDANCE WITH THE TECHNICAL ACM ABATEMENT SPECIFICATIONS AND ALL APPLICABLE REQUIREMENTS OF THE OSHA ASBESTOS STANDARD (29 CFR 1926.1101) FOR CLASS I ASBESTOS WORK.

ASB-2 THE CONTRACTOR SHALL REMOVE ALL ASBESTOS-CONTAINING THERMAL SYSTEM

INSULATION, WIRE MESH, AND FIBERGLASS INSULATION ON GENERATOR EXHAUST STACKS, MUFFLERS, PIPES, AND HEAT EXCHANGERS BY CONVENTIONAL CONTAINMENT METHODS IN ACCORDANCE WITH THE TECHNICAL ACM ABATEMENT SPECIFICATIONS AND ALL APPLICABLE REQUIREMENTS OF THE OSHA ASBESTOS STANDARD (29 CFR 1926.1101) FOR CLASS I ASBESTOS WORK.

ASB-3 THE CONTRACTOR SHALL REMOVE ALL ASBESTOS-CONTAINING THERMAL SYSTEM

PIPE INSULATION FROM CONDENSATE AND STEAM DISTRIBUTION LINES ASSOCIATED WITH THE SUSPENDED UNIT HEATERS NEAR THE CEILING IN THE GENERATOR ROOM AND CORNER OF THE SWITCHGEAR ROOM USING GLOVEBAG METHODS IN ACCORDANCE WITH THE TECHNICAL ACM ABATEMENT SPECIFICATIONS AND ALL APPLICABLE REQUIREMENTS OF THE OSHA ASBESTOS STANDARD (29 CFR 1926.1101) FOR CLASS I ASBESTOS WORK.

ASB-4 THE CONTRACTOR SHALL REMOVE THE TRANSITE PIPE AND DEBRIS IN AREAS

NOTED IN ACCORDANCE WITH THE TECHNICAL ACM ABATEMENT SPECIFICATIONS AND ALL APPLICABLE REQUIREMENTS OF THE OSHA ASBESTOS STANDARD (29 CFR 1926.1101) FOR CLASS II ASBESTOS WORK.

11

Project No. 0241.006 August 2007

Figure 4. Metropolitan Sewer District, Millcreek Power Plant, East Elevation - Removal of Windows with Asbestos-Containing Caulking and Window Glazing Compound.

Basemap: AutoCAD drw. 696-127

2 3 3 3 2

4

2 3 3 3 2

4

Project No. 0241.006 August 2007Basemap: AutoCAD drw. 696-129

Figure 5. Metropolitan Sewer District, Millcreek Power Plant, South Wall Elevation - Removal of Windows with Asbestos-Containing Caulking and Window Glazing Compound.

66


Figure 6. Metropolitan Sewer District, Millcreek Power Plant, West Elevation - Removal of Windows with Asbestos-Containing Caulking and Window Glazing Compound.


2 3 3 3 2

5 5 5 5

2 3 3 3 2

5 5 5 5


Figure 7. Metropolitan Sewer District, Millcreek Power Plant, North Elevation - Removal of Windows with Asbestos-Containing Caulking and Window Glazing Compound.
