BID SHEET EAST AND WEST TECHNOLOGY ASBESTOS ABATEMENT

Transcription

1 Renovations Asbestos Abatement BID SHEET EAST AND WEST TECHNOLOGY ASBESTOS ABATEMENT Asbestos Material Quantity Unit Price Bid Price Mud Compound Insulation 795 each Floor Tile 10,560 sf Lab Counter Tops 87 sf Fire Doors 20 each Windows Glazing 11 each Total Bid

2 Renovations Asbestos Abatement DIVISION 02 EXISTING CONDITIONS TABLE OF CONTENTS SECTION TITLE PAGES ASBESTOS ABATEMENT PROJECT/WORK IDENTIFICATION PROJECT SCOPE ASBESTOS ABATEMENT AREAS Item #1 Asbestos Abatement West Technology Building 02-4 TO Item #2 Asbestos Abatement East Technology Building 02-5 TO Conditions and Performance Provisions 02-7 TO Project Schedule Potential Asbestos Hazard Potential Lead Hazard Plan of Action Inspection Stop Work Asbestos Containing Materials AIR MONITORING Description of the Work Personal Monitoring Stop Action Levels Analytical Methods Sample Volumes Schedule of Air Samples Laboratory Testing Additional Testing REMOVAL OF ASBESTOS CONTAINING MATERIALS Related Work Specified Elsewhere Products Wet Removal Localized Control of Material Release Local Ventilation and Collection System RESPIRATORY AND WORKER PROTECTION Worker Training Standards Equipment Air Purifying Respirators Protective Clothing Execution Fit Testing Type of Respiratory Protection Required Permissible Exposure Limit Respiratory Protection Factor Air Purifying Respirators Worker Decontamination

3 Renovations Asbestos Abatement TEMPORARY ENCLOSURES Products Sheet Plastic Miscellaneous Materials Execution Types of Enclosures Category I -Regulated Area Category II - Regulated Area Category III - Regulated Area Category IV - Regulated Area Category V - Regulated Area Category VI - Regulated Area General Execution Requirements Emergency Exits Stop Work Extension of Work Area TEMPORARY PRESSURE DIFFERENTIAL Monitoring Quality Assurance Products HEPA Filtered Fan Units Execution Pressure Differential Isolation Air Circulation in the Work Area Exhaust System Air Circulation in Decontamination Units Use of Pressure Diff and Air Circ System REGULATED AREAS Related Work Specified Elsewhere Description of Work Equipment HEPA Filter Vacuum Cleaners Execution Securing Work Area Demarcation of Regulated Area Scheduling General Procedures Work Area Entry DECONTAMINATION UNITS Description of Work Products Execution Personnel Decontamination Unit Equipment Decontamination Unit Construction of the Decontamination Unit Cleaning of Decontamination Units Signs

4 Renovations Asbestos Abatement CLEANING AND DECONTAMINATION PROCEDURES Execution Start of Work Cleaning Visual Inspection Final Air Sampling PCM Removal of Work Area Isolation Certificate of Visual Inspection WORK AREA CLEARANCE General Additional Testing Contractor Release Criteria Air Monitoring Aggressive Sampling Schedule of Air Samples Phase Contrast Microscopy Laboratory Testing DISPOSAL OF ASBESTOS CONTAINING WASTE General Description of Work Products Execution APPENDIX I GLOSSARY OF TERMS APPENDIX II PROJECTED ABATEMENT QUANTITIES APPENDIX III WORK AREAS

5 DIVISION 02 EXISTING CONDITIONS

6 Renovations Asbestos Abatement DIVISION 2 EXISTING CONDITIONS SECTION ASBESTOS ABATEMENT SECTION Sections of Division 2, Asbestos Abatement, are specifications written to cover technical requirements for abatement of asbestos containing materials. Drawings, general provisions of Contract, including General and Supplementary Conditions, and other specification sections, apply to work of this section. The basic titles and section numbers are as follows: TITLE SECTION NO. DEFINITIONS Project/Work Identification Air Monitoring Removal of Asbestos Containing Materials Respiratory and Work Protection Temporary Enclosures Temporary Pressure Differential Regulated Areas Decontamination Units Cleaning and Decontamination Procedures Work Area Clearance Disposal of Asbestos Containing Waste Contractor = Abatement Contractor Owner/Agency = Monroe County Community College Bldg. = East Technology and West Technology Buildings PSC = Professional Services Contractor - Materials Testing Consultants, Inc. 02-1

7 Renovations Asbestos Abatement PROJECT/WORK IDENTIFICATION SECTION General: Project name is Monroe County Community College,, Renovations Asbestos Abatement, as shown in the Technical Specifications prepared by the Owner's Representative, Materials Testing Consultants, Inc. Materials Testing Consultants, Inc. will monitor performance and answer and interpret all questions related to the technical specifications, industrial hygiene, and EPA, OSHA, MIOSHA, MDLARA and MDEQ regulations throughout the duration of this project. The Abatement Contractor must contact the Owner's Representative, Materials Testing Consultants, Inc., for all guidance, interpretations, and directions for all work included within these Plans and Specifications and within the Asbestos Abatement Contract. All communications must go through Materials Testing Consultants, Inc. The work includes the cleaning, removal of hazardous containing building materials, debris removal, cleaning and decontamination and safe transportation of hazardous containing building materials to an approved landfill according to the requirements of the following specification divisions in the sequence indicated: Division 2 Existing Conditions 02-2

8 Renovations Asbestos Abatement Project Scope Section The work for this specification includes, but is not limited to, all labor, materials, services, insurance and equipment necessary to carry out the setup, asbestos abatement and disposal of fire doors, floor tile/mastic, pipe joint/fitting mud compound and window glaze in to facilitate the renovations. Work shall include the removal of all associated dust, dirt and debris within each regulated area of asbestos abatement per these specifications. The Scope of Work is further detailed in the descriptions below and under Project/Work Identification - Section within this specification. Owner and PSC are not responsible for the accuracy of the quantities and/or their locations given. The Contractor shall be fully responsible for all measurements, and any items found within the abatement areas but not identified in this document, shall become the contractor's responsibility as far as asbestos materials cleaning, removal, decontamination, storage, transportation, and disposal. The Contractor is responsible for the cleaning, removal, decontamination, storage, transportation and disposal of all "true unknowns" within each "work area" and/or "containment", at no extra cost to the Owner, Agency or PSC. Furnish all equipment, labor, and services necessary for, or incidental to, the execution and completion of the at the, Monroe County Community College in accordance with Divisions 2 of this Specification and the guidelines and regulations that are outlined by the US Environmental Protection Agency (EPA), the US Department of Transportation (DOT), the US Department of Labor, Occupational Safety and Health Administration (OSHA), the Michigan Department of Licensing and Regulatory Affairs (MDLARA), the Michigan Department of Environmental Quality (MDEQ), and the Michigan Occupational Safety and Health Administration (MIOSHA). Materials Testing Consultants, Inc. will be administering and conducting project management and reviewing the related industrial hygiene type air monitoring throughout the duration of the course of this project. The Contractor shall report to Materials Testing Consultants, Inc. for administrative matters. This project has been designed based on the Contractor providing a crew of 4-6 workers and supervisors during each workday while removal and decontamination procedures are being performed. This crew shall be capable of splitting into a separate crew or crews for purpose of waste load out, materials transfer in and out of the facility, setup in the next scheduled area or to perform any other work necessary to maintain the overall project schedule. The Contractor shall not start work on any given shift without a minimum of 4 workers and supervisors with experience as indicated above. Materials Testing Consultants, Inc. may waive this manpower requirement on a day-to-day basis when work is being performed in areas that will not support the minimum staffing required. Because of the critical nature of this project, the Contractor's attempted use of inexperienced workers will not be accepted. This may cause delay and/or stoppage of work by the Regulatory Agencies such as MIOSHA, MDEQ and MDLARA. 02-3

9 Renovations Asbestos Abatement ASBESTOS ABATEMENT AREAS Section The work for this specification includes, but is not limited to, all labor, materials, services, insurance and equipment necessary to carry out the setup, asbestos abatement and disposal of designated materials in East and West Technology Buildings to facilitate the renovations. Work shall include the removal of all associated dust, dirt and debris within each regulated area of asbestos abatement per these specifications. Item No. 1 West Technology Building Section Work in Item No. 1 consists of the, mobilization, abatement, removal and disposal of approximately 190 asbestos containing mud compound insulation of pipe fittings, approximately 4,560 square feet of floor tile (some under carpet and/or non-acm floor tile), approximately 87 square feet of laboratory counter tops, approximately 5 fire doors and approximately 11 windows with window glaze. Any non-acm determined to be contaminated with the asbestos containing materials shall be disposed of as asbestos containing material or properly decontaminated and disposed of offsite. These quantities have been estimated based on known locations of asbestos containing materials and the potential for impact by construction activities and tabulated by Function Area in Appendix II. Function Area Drawings are provided in Appendix III. Consult with Final Construction Drawings available through Owner for final work areas and quantities. All abatement for Item No.1 shall be completed within a Regulated Area as described in TEMPORARY ENCLOSURES Section of this Specification. Abatement activities shall comply with all local, state and federal regulations. Work within Item No. 1 shall be conducted in coordination with Owner, PSC and designated Construction Manager. Tentative Schedule for Item No. 1 is November 12, 2018 thru November 21, General work area requirements are found in Section Conditions and Performance Provision. Prior to the Contractor occupying or accepting this work area, the Agency will complete the following tasks: 1.1 Notify Safety Personnel, (State Police, Fire Marshall, Building Security, Local Government Authorities) and vacate work area. 1.2 Provide water and electricity source for abatement activities. As part of the Contractor s inspection of the work area (see Section Inspection), the Contractor shall verify that these actions of the Agency have been completed. The Contractor s work is summarized as follows: 1.3 Verify that the Agency has performed and implemented all Task 1.1 and Task Secure the work area. 1.5 Establish the work area as a regulated area with warning signs and barrier tape. 1.6 A minimum of half-mask negative pressure respiratory protection and disposable suits shall be used at all times within the regulated areas from the commencement of abatement until Materials Testing Consultants, Inc. has determined that final clearance has been achieved. If fiber counts indicate levels at or above 0.5 F/cc, the Contractor may be required to increase worker protection to PAPR's. Worker training, respiratory and worker protection shall be as specified in Section Respiratory and Worker Protection. 02-4

10 Renovations Asbestos Abatement 1.7 Abate all materials specified in accordance with procedures set forth in this document. 1.8 Clean and decontaminate area to meet visual inspection requirements of the PSC. 1.9 Lock down all abated surfaces prior to air clearance testing being performed by the PSC Perform additional cleaning as necessary to meet final air clearance requirements Prior to deregulating the area, the work area must meet visual inspection requirements and, if final air clearance testing is performed by the PSC, the area must achieve final air clearance requirements. Item No. 2 East Technology Building Section Work in Item No. 2 consists of the, mobilization, abatement, removal and disposal of approximately 605 asbestos containing mud compound insulation of pipe fittings, approximately 6,000 square feet of floor tile (some under carpet and/or non-acm floor tile) and approximately 15 fire doors. Any non-acm determined to be contaminated with the asbestos containing materials shall be disposed of as asbestos containing material or properly decontaminated and disposed of offsite. These quantities have been estimated based on known locations of asbestos containing materials and the potential for impact by construction activities and tabulated by Function Area in Appendix II. Function Area Drawings are provided in Appendix III. Consult with Final Construction Drawings available through Owner for final work areas and quantities. All abatement for Item No.1 shall be completed within a Regulated Area as described in TEMPORARY ENCLOSURES Section of this Specification. Abatement activities shall comply with all local, state and federal regulations. Work within Item No. 2 shall be conducted in coordination with Owner, PSC and designated Construction Manager. Tentative Schedule for Item No. 2 is November 23, 2018 thru November 30, General work area requirements are found in Section Conditions and Performance Provision. Prior to the Contractor occupying or accepting this work area, the Agency will complete the following tasks: 2.1 Notify Safety Personnel, (State Police, Fire Marshall, Building Security, Local Government Authorities) and vacate work area. 2.2 Provide water and electricity source for abatement activities. As part of the Contractor s inspection of the work area (see Section Inspection), the Contractor shall verify that these actions of the Agency have been completed. The Contractor s work is summarized as follows: 2.3 Verify that the Agency has performed and implemented all Task 2.1 and Task Secure the work area. 2.5 Establish the work area as a regulated area with warning signs and barrier tape. 02-5

11 Renovations Asbestos Abatement 2.6 A minimum of half-mask negative pressure respiratory protection and disposable suits shall be used at all times within the regulated areas from the commencement of abatement until Materials Testing Consultants, Inc. has determined that final clearance has been achieved. If fiber counts indicate levels at or above 0.5 F/cc, the Contractor may be required to increase worker protection to PAPR's. Worker training, respiratory and worker protection shall be as specified in Section Respiratory and Worker Protection. 2.7 Abate all materials specified in accordance with procedures set forth in this document. 2.8 Clean and decontaminate area to meet visual inspection requirements of the PSC. 2.9 Lock down all abated surfaces prior to air clearance testing being performed by the PSC Perform additional cleaning as necessary to meet final air clearance requirements Prior to deregulating the area, the work area must meet visual inspection requirements and, if final air clearance testing is performed by the PSC, the area must achieve final air clearance requirements. 02-6

12 Renovations Asbestos Abatement Conditions and Performance Provisions Section All provisions of the OSHA Regulations for construction and subpart D - occupational health and environmental controls being 29 CFR including appendices A, C, D, and E of October 11, 1994 are incorporated to this Section of Conditions and Performance Provisions by Reference. 2. All thermal system pipe and fitting insulation abatement shall be accomplished by methods specified in Section and the subsequent above Sections describing the work to be performed within the individual work areas. Thermal system pipe and fitting insulation abatement shall be accomplished using (1) negative pressure glove bag techniques, (2) standard glove bag removal within a reduced pressure differential containment or (3) gross removal within a reduced pressure differential containment. Unless otherwise specified, thermal system pipe and fitting insulation abatement of less than 25 Linear feet shall be accomplished as a minimum using negative pressure glove bag techniques within a Category I Regulated area as defined in Section Thermal System abatement of greater than 25 Linear feet shall be accomplished as a minimum using negative pressure glove bag techniques within a Category II - Regulated area as defined in Section or standard glove bag techniques within a Category III - Regulated Area as defined in Section A minimum of half-mask negative pressure respiratory protection shall be used at all times within temporary enclosures from the commencement of set up activities until the PSC has determined that final clearance has been achieved. Powered Air Purifying Respirator (PAPR) respiratory protection shall be worn whenever gross removal of asbestos is in progress. This includes the cleaning of detached asbestos containing debris from surfaces. 4. Temporary enclosures shall remain intact and the temporary pressure differential shall remain in operation until final air clearance testing has been performed by the PSC and air quality is determined to be below clearance criteria. 5. After completion of abatement, abated surfaces shall be encapsulated with a sprayed lock down as specified in Section Cleaning and Decontamination Procedures. Lock down shall be White Acrylic Latex Paint or Eppert Penetrating Encapsulant #1 or equal in other areas. Lock down shall be placed at rates as recommended by the manufacturer. If the abatement area fails to meet clearance requirements, the contractor will be responsible for any additional cleaning which may be required to meet the air clearance limit specified in Section Phase Contrast Microscopy. 6. If mini-containments are selected, they shall be constructed as a Category IV Regulated Area as specified in Section The temporary reduced pressure differential system shall be as specified in Section Temporary Pressure Differential. Air filtration device exhaust shall be ducted to the building exterior using either reinforced duct or rolled plastic flex duct. Decontamination facilities shall consist of minimum three stage decontamination units as specified in Section Decontamination Units. 7. Final visual inspection of the regulated area shall be documented through completion of the "Certificate of Visual Inspection" found in Section Encapsulation of the substrate shall not commence until the "Certificate of Visual Inspection" has been signed by both the Contractor and Industrial Hygienist. Encapsulation shall be completed using a white latex paint at coverage rates as specified in Section Final air clearance testing will be completed by Materials Testing Consultants, Inc. after encapsulation has been completed. Final air clearance testing will be performed using aggressive sampling methods with air samples read on site by Industrial Hygienist using Phase Contrast 02-7

13 Renovations Asbestos Abatement Microscopy methods. Final air clearance sampling will be completed as described in Section of this Specification. The containment shall be considered a regulated area and all air filtration devices and decontamination facilities shall remain in operation until final air clearance criteria have been achieved. 9. Disposal of asbestos containing insulation and debris shall be as specified in Section Disposal of Asbestos Containing Waste. 02-8

14 Renovations Asbestos Abatement Project Schedule Section The Project Schedule for the Monroe County Community College,, Renovations Asbestos Abatement is as follows: Tentative Schedule Item #1 West Technology Building 10 day schedule to completion Item #2 East Technology Building 7 day schedule to completion This schedule is subject to change if such a move is found to be in the best interest of the Owner, Agency and Professional Services Contractor. The Professional Services Contractor will provide at least 10 calendar days advance notice to the Contractor prior to the start of work. Substantial and Final Completion dates will be determined based on the set date of mobilization. The schedule allows ten working days for Contractor notification to the regulatory agencies and allows time for setup and abatement of the scheduled work areas. Schedule is based on the Contractor working four - 10-hour days per week or five 8-hour days per week. Work days will be Monday through Friday for all Items. Work days will be adjusted during some weeks to avoid working on State of Michigan scheduled holidays. The work schedules provided assume multiple responsibilities by the Owner, Agency and Contractor. The Contractor shall provide a minimum 4-man abatement/demolition crew. The Contractor shall add staff as necessary to maintain the project schedule. Extension of work hours will only be considered when work is being completed in confined areas which will not allow an increase in staffing. The schedule includes days for performance of hazardous materials abatement, demolition, and final air clearance tests. The Regulatory Agencies (EPA, OSHA, MIOSHA, MDEQ) have the authority to inspect abatement areas at any time and to determine when an abatement action is complete. Any activity (modifications to procedural changes effecting abatement or job safety, etc.) requested by the regulatory agencies shall be considered a part of the scope of work of this specification. The regulatory agencies have full authority to determine when a work area is complete. 02-9

15 Renovations Asbestos Abatement Potential Asbestos Hazard Section The disturbance or dislocation of asbestos containing materials may cause asbestos fibers to be released into the building's atmosphere, thereby creating a potential health hazard to workmen and building occupants. Apprise all workers, supervisory personnel, subcontractors and consultants who will be at the job site of the seriousness of the hazard and of proper work procedures that must be followed. Where in the performance of the work, workers, supervisory personnel, subcontractors, or consultants may encounter, disturb, or otherwise function in the immediate vicinity of any identified asbestos containing materials, take appropriate continuous measures as necessary to protect all building occupants from the potential hazard of exposure to airborne asbestos. Such measures shall include the procedures and methods described herein, and compliance with regulations of applicable federal, state, and local agencies. Potential Occupational Exposure Hazards Section The disturbance or dislocation of other building materials may cause a release into the building's atmosphere, thereby creating a potential health hazard to workers and building occupants. Apprise all workers, supervisory personnel, subcontractors and consultants who will be at the job site of the seriousness of the hazard and of proper work procedures that must be followed. Where in the performance of the work, workers, supervisory personnel, subcontractors, or consultants may encounter, disturb, or otherwise function in the immediate vicinity of any identified hazardous building materials, take appropriate continuous measures as necessary to protect all building occupants from the potential hazard of exposure to airborne lead, cadmium and chromium. Such measures shall include the procedures and methods described herein, and compliance with regulations of applicable federal, state, and local agencies. Plan of Action Section Submit a detailed plan of the procedures proposed for use in complying with the requirements of this specification. Include in the plan, the interface of trades involved in the performance of work, methods to be used to assure the safety of workers, building occupants and visitors to the site, disposal plan including location of approved disposal site, and a detailed description of the methods to be employed to control pollution. Expand upon the use of portable HEPA ventilation system, closing out of the building's HVAC system, method of removal to prohibit visible emissions in work area, and packaging of removed asbestos debris. The plan must be approved by Materials Testing Consultants, Inc. prior to commencement of work

16 Renovations Asbestos Abatement Inspection Section Prior to commencement of work, inspect areas in which work will be performed. Prepare a listing of damage to structure, surfaces, equipment or of surrounding properties which could be misconstrued as damage resulting from the work. Submit to Materials Testing Consultants, Inc. prior to starting work. Stop Work Section Under emergency or any other conditions, the Owner, or Materials Testing Consultants, Inc., will write a stop work order immediately, and the Contractor shall automatically stop all work. The Contractor will not recommence work until authorized in writing by Materials Testing Consultants, Inc. or the regulatory agencies that are present. Asbestos Containing Materials Section Materials Testing Consultants, Inc. has performed a survey to evaluate location and quantity of known and assumed asbestos containing materials which could potentially be impacted by renovations. The survey report is available upon request. Appendix II provides a summary of Asbestos Containing Materials within, along with the projected quantities of materials impacted by the renovations and requiring abatement. Unless otherwise stated, dust, soils, debris, and other asbestos containing materials found within designated work areas, that are not specified in this document, shall be part of the project scope and be removed by the Contractor in order to provide complete and full compliance and associated abatement services as required by the EPA, OSHA, MIOSHA, MDEQ and local governmental unit standards

17 Renovations Asbestos Abatement SECTION END PAGE LEFT BLANK INTENTIONALLY 02-12

18 AIR MONITORING SECTION Air Monitoring: During work area clearance is described in Section Work Area Clearance. Work Area Isolation: The purpose of the Industrial Hygienist air monitoring is to detect faults in the work area isolation such as: Contamination of the building outside of the work area with airborne asbestos fibers, Failure of filtration or rupture in the differential pressure system, Should any of the above occur immediately cease asbestos abatement activities until the fault is corrected. Do not recommence work until authorized by the PSC. Work Area Airborne Fiber Count: The Industrial Hygienist will monitor airborne fiber counts in the work area. The purpose of this air monitoring will be to detect airborne asbestos concentrations which may challenge the ability of the work area isolation procedures to protect the balance of the building or outside of the building from contamination by airborne fibers. Work Area Clearance: To determine if the elevated airborne fiber counts encountered during abatement operations have been reduced to an acceptable level, the Industrial Hygienist will sample and analyze air per Section Work Area Clearance. The PSC will be administering and conducting project management and related industrial hygiene type air monitoring throughout the duration of the project. Description of the Work Section This section describes work being performed by the Industrial Hygienist. This work is not in the contract sum. This section describes air monitoring carried out by the Industrial Hygienist to verify that the building beyond the work area and the outside environment remains uncontaminated. This section also sets forth airborne fiber levels both inside and outside the work area as action levels, and describes the action required by the Contractor if an action level is met or exceeded. Personal Monitoring Section Personal Air monitoring and analysis required by OSHA and MIOSHA is the responsibility of the Abatement Contractor. The Abatement Contractor shall provide a sufficient number of personal air monitoring pumps as required by federal and state regulations to adequately monitor his personnel, and also shall be responsible for maintaining these pumps in proper working order and for assuring that pumps are properly worn and calibrated. The personal air monitoring results must be made available to the Owner and PSC within one working day from the time of sampling

19 Stop Action Levels Section Inside Work Area: Maintain an average airborne count in the work area of less than 0.2 fibers per cubic centimeter. If the fiber counts rise above this figure for any sample taken, revise work procedures to lower fiber counts. If notified by the PSC that the time weighted average (TWA) fiber count for any work shift or eight hour period exceeds 0.2 fibers per cubic centimeter, stop all work, and leave pressure differential system in operation. After correcting cause of high fiber levels, do not recommence work for 24 hours unless otherwise authorized, in writing, by PSC. If notified by the Industrial Hygienist that airborne fiber counts exceed 0.5 fibers per cubic centimeter for any period of time cease all work except corrective action until fiber counts fall below 0.2 fibers per cubic centimeter. After correcting cause of high fiber levels, do not recommence work for 24 hours unless otherwise authorized, in writing, by the PSC. Inside Work Area: Maintain an average airborne count in the work area of less than the Stop Action Level given below for the type of respiratory protection in use. If the fiber counts rise above this figure for any sample taken, revise work procedures to lower fiber counts. If notified by the Industrial Hygienist that the time weighted average (TWA) fiber count for any work shift or eight hour period exceeds the Stop Action Level, stop all work except corrective action, and leave pressure differential and air circulation system in operation. After correcting cause of high fiber levels, do not recommence work for 24 hours unless otherwise authorized, in writing, by PSC. STOP ACTION LEVEL (f/cc) IMMEDIATE STOP LEVEL (f/cc) MINIMUM RESPIRATOR REQUIRED MINIMUM PROTECTION FACTOR Half face PAPR Type C 100 If notified by the Industrial Hygienist that airborne fiber counts exceed Immediate Stop Level given above for type of respiratory protection in use for any period of time cease all work except corrective action. Do not recommence work until fiber counts fall below Stop Action Level given above for the type of respiratory protection in use. After correcting cause of high fiber levels, do not recommence work for 24 hours unless otherwise authorized, in writing, by PSC. Outside Work Area: If any air sample taken outside of the work area exceeds the base line established below, immediately and automatically stop all work except corrective action. The Industrial Hygienist or PSC will determine the source of the high reading and so notify the Contractor in writing. If the high reading was the result of a failure of work area isolation measures initiate the following actions: Immediately erect new critical barriers as set forth in Section Temporary Enclosures to isolate the affected area from the balance of the building. Erect critical barriers at the next existing structural isolation of the involved space (e.g. wall, ceiling, and floor). Decontaminate the affected area in accordance with Section Cleaning & Decontamination Procedures. Require that respiratory protection as set forth in Section Respiratory and Worker Protection be worn in affected area until area is cleared for reoccupancy in accordance with Section Work Area Clearance

20 Leave critical barriers in place until completion of work and insure that the operation of the pressure differential system in the work area results in a flow of air from the balance of the building into the affected area. If the exit from the clean room of the personnel decontamination unit enters the affected area, establish a decontamination facility consisting of a shower room and changing room as set forth in Section Decontamination Units at entry point to affected area. After certification of visual inspection in the work area remove critical barriers separating the work area from the affected area. Final air samples will be taken within the entire area as set forth in Section Work Area Clearance. If the high reading was the result of other causes initiate corrective action as determined by the Industrial Hygienist or PSC. Effect on Contract Sum: Complete corrective work with no change in the contract sum if high airborne fiber counts were caused by Contractor's activities. Analytical Methods Section The following methods will be used by the Industrial Hygienist in analyzing filters used to collect air samples. Sampling rates may be varied from printed standards to allow for high volume sampling. Phase Contrast Microscopy (PCM) will be performed using the NIOSH 7400 method. This analysis will be carried out at the job site. Transmission Electron Microscopy (TEM) will be performed using the AHERA method. This analysis will sent out for analysis. Sample Volumes Section General: The number and volume of air samples taken by the Industrial Hygienist will be in accordance with the following schedule. Sample volumes given may vary depending upon the analytical method used. Schedule of Air Samples Section Before Start of Work: The Industrial Hygienist may secure the following air samples to establish a base line before start of work. Sample Cassettes: Samples will be collected on 25-mm cassettes as follows: PCM: 0.8 micrometer mixed cellulose ester Base Line: An action level expressed in fibers per cubic centimeter which is 25% greater than the largest of the following: Average of the PCM samples collected outside each work area Average of the PCM samples collected outside the building 02-15

21 Daily: From start of work of Section Temporary Enclosures through the work of Section Cleaning and Decontamination, the PSC may be taking the following samples on a daily basis. Samples will be collected on 25-mm cassettes with the following filter media: Location Sampled PCM: 0.8 micrometer mixed cellulose ester Number of Samples Per Work Period Analysis Method Detection Limit Fibers/cc Minimum Volume (Liters) Rate LPM Each work area 1 PCM , Outside each work 2-3 PCM , area at critical barrier Output pressure differential system 1/unit PCM , Additional samples may be taken at Industrial Hygienist or PSC's discretion. If airborne fiber counts exceed allowed limits additional samples will be taken as necessary to monitor fiber levels. Laboratory Testing Section The services of a testing laboratory will be employed by the Contractor to perform laboratory analyses of the air samples. A microscope and technician will be setup at the job site, so that verbal reports on air samples can be obtained immediately. The Contractor will have access to all air monitoring tests and results. Written Reports: of all air monitoring tests will be posted at the job site on a daily basis. Additional Testing Section The Contractor may conduct his own air monitoring and laboratory testing. If he elects to do this, the cost of such air monitoring and laboratory testing shall be at no additional cost to the PSC, or owner

22 REMOVAL OF ASBESTOS CONTAINING MATERIALS SECTION Related Work Specified Elsewhere Section Installation of critical and primary barriers, and work area isolation procedures are set forth in Section Temporary Enclosures. Project decontamination procedures after removal of the secondary barrier are specified in Section Cleaning and Decontamination Procedures. Disposal of asbestos containing waste is specified in Section Disposal of Asbestos Containing Waste Material. Products Section Wetting Materials: For wetting prior to disturbance of asbestos containing materials, use either amended water or a removal encapsulant: Amended Water: Provide water to which a surfactant has been added. Use a mixture of surfactant and water which results in wetting of the asbestos containing material and retardation of fiber release during disturbance of the material equal to or greater than that provided by the use of one ounce of a surfactant consisting of 50% polyoxyethylene ester and 50% polyoxyethylene ether mixed with five gallons of water. Surfactant product data and MSDS sheets shall be provided at the preconstruction meeting. Removal Encapsulant: Provide a penetrating type encapsulant designed specifically for removal of asbestos containing material. Use a material which results in wetting of the asbestos containing material and retardation of fiber release during disturbance of the material equal to or greater than that provided by water amended with a surfactant consisting of one ounce of a mixture of 50% polyoxyethylene ester and 50% polyoxyethylene ether in five gallons of water. Removal encapsulant product data and MSDS sheets shall be provided at the preconstruction meeting. Polyethylene Sheet: A single polyethylene film in the largest sheet size possible to minimize seams, 4.0 or 6.0 mil thick as indicated, clear, frosted, or black as indicated. Duct Tape: Provide duct tape in two or three inch widths as indicated, with an adhesive which is formulated to stick aggressively to sheet polyethylene. Spray Cement: Provide spray adhesive in aerosol cans that is specifically formulated to stick tenaciously to sheet polyethylene. Disposal Bags: Provide 6 mil thick leak-tight polyethylene bags labeled as required by Section Disposal of Asbestos Containing Waste Material. Wet Removal Section Adequately wet asbestos containing materials to be removed prior to stripping and/or tooling to reduce fiber dispersal into the air. Accomplish wetting by a fine spray (mist) of amended water or removal encapsulant. Saturate material sufficiently to wet to the substrate without causing excess dripping. Allow time for amended water or removal encapsulant to penetrate material thoroughly. If amended water is used, spray 02-17

23 material repeatedly during the work process to maintain a continuously wet condition. If a removal encapsulant is used, apply in strict accordance with manufacturer's written instructions. Perforate outer covering of any installation which has been painted and/or jacketed in order to allow penetration of amended water or removal encapsulant, or use injection equipment to wet material under the covering. Where necessary, carefully strip away while simultaneously spraying amended water or removal encapsulant on the installation to minimize dispersal of asbestos fibers into the air. Mist Work area continuously with amended water whenever necessary to reduce airborne fiber levels. Remove Saturated Asbestos Containing Material in small sections from all areas. Do not allow material to dry out. As it is removed, simultaneously pack material while still wet into disposal bags. Twist neck of bags, fold over, and seal with minimum three wraps of duct tape. Clean outside and move to wash down station adjacent to material decontamination unit. Remove Saturated Asbestos Containing Material in small sections from all areas. Do not allow material to dry out. As it is removed, simultaneously pack material while still wet into disposal bags. Evacuate air from disposal bags with a HEPA filtered vacuum cleaner before sealing. Twist neck of bags, bend over and seal with minimum three wraps of duct tape. Clean outside and move to wash down station adjacent to material decontamination unit. Active Electrical Equipment: Do not wet materials in the vicinity of active electrical equipment. Dry removal shall be in accordance with NESHAPS standards. Warning Signs: Post warning signs at the entry point to active electrical equipment as required by OSHA or other applicable regulation. Personnel: Work on active electrical equipment is to be performed by qualified tradespersons with prior experience in the installation or repair of the involved equipment. Restrict access to electrical equipment. Protective Equipment: Provide workers working on or in the vicinity of active electrical with appropriate protective equipment including insulating gloves, boots, and non-conductive tools. Hot Equipment: Do not wet materials on hot piping or equipment. Dry removal shall be in accordance with NESHAPS standards. Warning Signs: Post warning signs at hot equipment as required by OSHA or other applicable regulation. Personnel: Work on hot equipment is to be performed by qualified tradespersons with prior experience with the type of equipment involved. Restrict access to electrical equipment. Protective Equipment: Provide workers working on or in the vicinity of hot equipment with appropriate protective equipment including insulating gloves, boots, and coveralls. Localized Control of Material Release Section Pipe Insulation: HEPA vacuum surface of pipe insulation. Cut bands holding preformed pipe insulation, slit jackets at seams while holding HEPA vacuum under cut, remove and hand-place in a disposal bag. Remove job-molded fitting insulation in chunks, using nozzle of HEPA vacuum to collect debris generated, and hand-place in a disposal bag. Do not drop to floor. Remove any residue on pipe or fitting with wire brush. Brushing toward the nozzle of a HEPA vacuum. In locations where pipe fitting insulation is removed from pipe with straight runs insulated with fibrous glass or other non-asbestos containing fibrous material, 02-18

24 remove fibrous material 6" from the point where it contacts the asbestos containing insulation. Use a twoworker crew for work, with one worker removing material and one worker holding the nozzle of a HEPA vacuum in the location of disturbance. Local Ventilation and Collection System Section Provide local ventilation and collection systems as described below for each area where amosite or dry asbestos containing material is being removed or otherwise disturbed: Provide HEPA filtered fan units in the vicinity of the work. Arrange so that the units exhaust into the work area oriented in a direction away from the work. Extend a 12" diameter flexible non-collapsing duct from the intake end to a point no more than four feet to zero inches from any scraping or wire brushing activity. Locate intake of duct so that airflow is horizontally and slightly downward into intake. Replace primary filters on HEPA filtered fan units at an interval of no greater that 30 minutes. Allow no more than one scraping or wire brushing activity per fan unit

25 RESPIRATORY AND WORKER PROTECTION SECTION Instruct and train each worker involved in asbestos abatement or maintenance and repair of friable asbestos containing materials in proper respiratory use and require that each worker always wear a respirator, properly fitted on the face in the work area from the start of any operation which may cause airborne asbestos fibers until the work area is completely decontaminated. Use respiratory protection appropriate for the fiber level encountered in the work place or as required for other toxic or oxygen deficient situations encountered. Worker Training Section State and Local License: All workers are to be trained, certified and accredited as required by state or local code or regulations. Train, in accordance with 29 CFR 1926, all workers in the dangers inherent in handling asbestos and breathing asbestos dust and in proper work procedures and personal and area protective measures. Include but do not limit the topics covered in the course to the following: Methods of recognizing asbestos Health effects associated with asbestos Relationship between smoking and asbestos in producing lung cancer Nature of operations that could result in exposure to asbestos. Importance of and instruction in the use of necessary protective controls, practices and procedures to minimize exposure including: Engineering controls Work practices Respirators Housekeeping procedures Hygiene facilities Protective clothing Decontamination procedures Emergency procedures Waste disposal procedures Purpose, proper use, fitting, instructions, and limitations of respirators as required by 29 CFR Appropriate work practices for the work Requirements of medical surveillance program Review of 29 CFR 1926 Pressure differential systems Work practices including hands on or on job training Personal Decontamination procedures 02-20

26 Air monitoring, personal and area Standards Section The following regulations and standards have the same force and effect as if copied directly into the Contract Documents, or as if published copies were bound herewith. Where there is a conflict in requirements set forth in these regulations and standards meet the more stringent requirement. OSHA - U.S. Department of Labor Occupational Safety and Health Administration, Safety and Health Standards 29 CFR 1910, Section 1001 and Section CFR ANSI - American National Standard Practices for Respiratory Protection, ANSI Z NIOSH - National Institute for Occupational Safety and Health MSHA - Mine Safety and Health Administration Equipment Section Air Purifying Respirators Section Respirator Bodies: Provide half face or full face type respirators. Equip full-face respirators with a nose cup or other anti-fogging device as would be appropriate for use in air temperatures less than 32 degrees Fahrenheit. Filter Cartridges: Provide, at a minimum, HEPA type filters labeled with NIOSH and MSHA certification for "Radionuclides, Radon Daughters, Dust, Fumes, Mists including Asbestos Containing Dusts and Mists" and color coded in accordance with ANSI Z228.2 (1980). In addition, a chemical cartridge section may be added, if required, for solvents, etc, in use. In this case, provide cartridges that have each section of the combination canister labeled with the appropriate color code and NIOSH/MSHA certification. Non-permitted respirators: Do not use single use, disposable or quarter face respirators. Provide respirator product data and NIOSH and MSHA certifications to PSC at preconstruction meeting. Protective Clothing Section Coveralls: Provide disposable full body coveralls and disposable head covers, and require that they be worn by all workers in the work area. Provide a sufficient number for all required changes, for all workers in the work area. Boots: Provide work boots with non-skid soles, and where required by OSHA, foot protectives, for all workers. Provide boots at no cost to workers. Do not allow boots to be removed from the work area until thoroughly decontaminated. Hard Hats: Provide head protectives (hard hats) as required by OSHA for all workers. Require hard hats to be worn at all times that work is in progress that may potentially cause head injury. Require hats to remain 02-21

27 in the work area throughout the work. Thoroughly decontaminate and bag hats before removing them from work area at the end of the work. Goggles: Provide eye protectives (goggles) as required by OSHA for all workers involved in scraping, spraying, or any other activity which may potentially cause eye injury. Gloves: Provide work gloves to all workers and require that they be worn at all times in the work area. Execution Section Respiratory Protection Program: Comply with ANSI Z "Practices for Respiratory Protection" and OSHA 29 CFR 1910 and Require that respiratory protection be used at all times that there is any possibility of disturbance of asbestos containing materials whether intentional or accidental. Require that a respirator be worn by anyone in a work area at all times, regardless of activity, during a period that starts with any operation which could cause airborne fibers until the area has been cleared for reoccupancy in accordance with Section Regardless of Airborne Fiber Levels: Require that the minimum level of respiratory protection used be half face air purifying respirators with high efficiency filters. Fit Testing Section Initial Fitting: Provide initial fitting of respiratory protection during a respiratory protection course of training. Fit types of respirator to be actually worn by each individual. Allow an individual to use only those respirators for which training and fit testing has been provided. Documentation of current fit tests for each worker must be provided at the preconstruction meeting for each type of respirator to be worn. Upon Each Wearing: Require that each time an air purifying respirator is put on it be checked for fit with a positive and negative pressure fit test in accordance with the manufacturer's instructions or ANSI Z88.2 (1980). Type of Respiratory Protection Required Section Provide respiratory protection as indicated below. Determine the proper level of protection by dividing the expected or actual airborne fiber count in the work area by the "protection factors" given below. The level of respiratory protection which supplies an airborne fiber level inside the respirator, at the breathing zone of the wearer, at or below the permissible exposure limit (PEL) is the minimum level of protection allowed