SPECIAL SPECIFICATION 7550 Asbestos Abatement, LP 340

Transcription

1 2004 Specifications CSJ See attachment on.pdf version. SPECIAL SPECIFICATION 7550 Asbestos Abatement, LP Description. Abate and remove asbestos containing materials (ACM) at indicated locations on public facilities. Abatement operations may be subject to the requirements of the National Emissions Standards for Hazardous Air Pollutants (NESHAP), the Texas Asbestos Health Protection Rules (TAHPR), and the Occupational Safety and Health Administration (OSHA). The plans will indicate the location, type, and approximate quantities of ACM. 2. Qualifications. For asbestos abatement work, provide personnel or subcontractors that are licensed, registered, or accredited by the Texas Department of State Health Services (DSHS) and insured for the appropriate asbestos related activity. Provide an on-site supervisor, or insure the subcontractor has a supervisor, meeting the requirements under OSHA for a Competent Person for all work involving Asbestos Containing Materials (ACM) where the asbestos content is greater than 1%. The competent person must be familiar with and experienced in asbestos abatement and other related work and must enforce the use of all safety procedures and equipment. The supervisor must be knowledgeable of all EPA, OSHA and NIOSH requirements and guidelines. Provide documentation of the supervisor s qualifications to the Engineer. 3. Notifications. Submit required notifications to DSHS. Assume responsibility for insuring that all required notifications are submitted by the deadlines and in the manner required by DSHS. Provide copies of all required notifications to the Engineer. No time extensions or suspension of time charges will be made for failure to submit timely notifications or revised notifications. 4. Construction. Comply with the developed Project Specifications for Asbestos Abatement on LP 340 at US 84 and LP 340 and Railroad Overpass in the City of Bellmead.. Use qualified personnel or subcontractors as specified herein to remove or abate ACM as described in the Project Specifications. Do not deviate from the requirements in the Project Specifications unless written approval is obtained from the developer of the Project Specifications or the Project Specifications is properly revised. The developer of the Project Specifications will monitor all aspects of work to ensure compliance with the project manual and all applicable regulations. 5. Storage and Disposal. ACM that has been removed may be temporarily stored on-site provided the storage methods comply with the provisions in the Project Specifications. Do not allow any accidental release of dust. Take removed ACM to a disposal facility licensed or approved to accept such materials as indicated in the Project Specifications. Comply with NESHAP and TAHPR regulations regarding handling and transporting ACM. Take coating chips and spent abrasives with no ACM present to an appropriate disposal facility

2 Transport all materials in a manner to prevent accidental release of dust. In accordance with NESHAP, indicate on any shipping manifest for containers of ACM that the Department is the generator of the waste, the name of the transporter, the name of the administering agency (DSHS), and the name of the disposal facility. 6. Measurement. This Item will be measured as outlined below for the types of ACM indicated on the plans. Coatings on concrete, steel or wood: by the square foot measured in place; Conduit: by the foot measured in place Mastics, sealants, fiberboard or roofing felt bearings or other items listed in the plans: by the linear foot of material removed and collected for disposal. 7. Payment. The work performed in accordance with this Item and measured as provided in Measurement will be paid for at the unit price bid for Asbestos Abatement, LP 340. for the type of material specified. The total amount paid is full compensation for complying with the Project Specifications, filing of required notifications, providing DSHS or OSHA certified personnel, containment systems, collection systems, equipment, labor, transportation and disposal of waste materials, and incidentals

3 MASTER ASBESTOS ABATEMENT SPECIFICATION for MAINTENANCE OPERATIONS OF VARIOUS TXDOT BRIDGES AND OVERPASSES WACO DISTRICT, TEXAS Terracon Project Number: TxDOT Contract No PF002 Work Authorization No. WA-06 Waco District March 8, 2010 Prepared for: TXDOT ENVIRONMENTAL AFFAIRS DIVISION 125 EAST 11 TH STREET AUSTIN, TEXAS Prepared by: Terracon Consultants, Inc Industrial Oaks Boulevard, Suite 160 Austin, Texas / TDSHS Consultant Agency License No Richard Ian Howes TDSHS Individual Asbestos Consultant License No Expires March 21, 2012 JM 4/8/10

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5 TABLE OF CONTENTS I. Materials, Quantity, and Locations... 2 II. Work Practices... 3 III. Contractor Submittals... 9 IV Construction Notes V. Products VI. Air Monitoring Services ADDENDUM A Parts of the Consultant Asbestos Inspection Reports REFERENCE TxDOT Drawings and General Notes

6 MASTER ASBESTOS ABATEMENT SPECIFICATION Project : Asbestos Abatement to Facilitate Maintenance of Various TxDOT Bridges and Overpasses This Master Specification shall be utilized with the TxDOT Drawings and General Notes at various TxDOT bridge structures and overpasses where asbestos abatement is required and asbestos-containing paint/texture materials are present on various bridge components, including but not limited to: structural members, guard rails, abutments and columns. This Master Specification shall also be utilized with the TxDOT Drawings and General Notes at the various TxDOT bridge structures and overpasses where asbestos-containing expansion joint mastic materials are present. The work may include total removal and/or select repair of the surfaces/bridge components in one or more phases as outlined in the TxDOT Drawings and General Notes and as determined by the appropriate TxDOT Engineer(s). It should be noted that often the bridge where abatement operations are conducted will remain in use during abatement operations and all safety precautions shall be the responsibility of the Abatement Contractor and shall be coordinated with TxDOT personnel. The Abatement Contractor shall be responsible for the removal of all asbestos-containing materials as directed and shall dispose of all waste as appropriate. It is anticipated that chemical removal materials shall be employed in situations where asbestos-containing coatings are present. The Abatement Contractor shall provide all MSDS information to the Consultant for review and determination of how best to characterize the intended waste stream. The Abatement Contractor personnel shall be trained in general safety precautions which need to be exercised when working on/near roadways and as required to conduct the work as outlined in the TxDOT Drawings and General Notes. All site operations shall be coordinated with Consultant, General Contractor and TxDOT personnel. It is anticipated that manual removal methods followed by application of chemical/solvent mastic removal materials shall be employed in situations where asphaltic expansion joint materials are present. The Abatement Contractor shall provide all MSDS information to the Consultant for review and determination of how best to characterize the intended waste stream. During the abatement activities conducted at any site, no chemical solvents or process waste water/liquids shall be allowed to be discharged into any stream or Waters of the US. 1

7 I. Material, Quantity and Location The work will consist of the removal of the following materials in the locations and approximate quantities listed in the TxDOT Drawings and General Notes. All work will be conducted by properly licensed personnel in accordance with applicable Federal, State and Municipal regulations. The asbestos abatement will consist of the following operations: Expansion Joint Mastic The asphaltic materials utilized in expansion joint seams on TxDOT bridges is sometimes found to contain asbestos. The location(s), quantity, condition, and friability of the asbestos-containing asphaltic materials identified will be described in the Asbestos Inspection report(s) and TxDOT Project Specific Scope of Work Document (Addendum A). The width and depth of the asbestos-containing expansion joint mastic may vary along the bridge and from expansion joint to expansion joint where found. The depth of material may vary from one inch to the full depth of the concrete deck. Additionally, asphalt overlay materials may cover portions of the expansion joint mastic material and removal of the asphalt material to gain access to the joint mastic will be included in the scope of work and included in the bid price. The Abatement Contractor is not required to repair any concrete or asphalt, if damaged as part of the removal of the asbestos-containing materials. Payment for removal of the asbestos-containing expansion joint mastic material will be established based on the linear footage of joint measured horizontally, regardless of depth, width or condition of material found in the expansion joint. The Abatement Contractor is encouraged to visit the bridge prior to bidding, take samples and/or determine material depths to better understand the scope of the abatement. Often the original asbestos survey will determine that not all expansion joints have asbestos-containing joint mastic applied and the condition and location shall vary from bridge to bridge. Spray-Applied Coating The coating materials with various texture materials utilized on various portions of the bridge (guard rails, abutments, column areas, etc. of the bridges) are sometimes found to contain asbestos. The location(s), quantity, condition, and friability of the asbestos-containing coating materials identified will be described in the TxDOT Drawings, General Notes and the Consultant Reports. The Abatement Contractor is not required to repair any concrete or asphalt, if damaged as part of the removal of the asbestos-containing materials. Payment for removal of the asbestoscontaining coating materials will be established based on the square footage of material measured, regardless of the condition of the material. The Abatement Contractor is 2

8 encouraged to visit the bridge prior to bidding, take samples and/or determine material quantities to better understand the scope of the abatement. THE ABATEMENT CONTRACTOR SHALL BE RESPONSIBLE FOR PROVIDING ALL ELECTRICAL POWER AND WATER NECESSARY TO FACILITATE THE ABATEMENT OPERATIONS IN THE SCOPE OF WORK. UTILITIES ARE REPORTEDLY NOT AVAILABLE AT THE SITE. Only fully qualified, approved, and DSHS-licensed individuals shall be employed to participate in all phases (preparation, abatement, post-abatement) of the abatement work. The Abatement Contractor shall not start work (preparation, abatement, postabatement) until the Consultant has arrived at the site and has approved the Scope of Work, work practices and received all Pre-job Abatement Contractor submittals. II. Work Practices A. Worker Protection: During the removal of the asbestos-containing materials, the workers will be required to wear as a minimum, half-face negative pressure respirators, equipped with filter cartridges designed for asbestos-containing dusts and mists, vapors, and color coded in accordance with ANSI Z228.2 (1980). Certification that the workers have been fit tested in accordance with current OSHA guidelines will be provided as part of Worker Documentation. During removal of the asbestos-containing materials, single protective suits, hard-toed boots, hard hats, safety glasses, safety vests, and gloves will be made available by the Abatement Contractor and shall be worn by each worker whenever work is being conducted on the site. Each suit and any disposable gloves utilized will be properly disposed of at the conclusion of the work. The workers performing the abatement will decontaminate through a single-chambered wet decontamination chamber which will be constructed as part of the regulated area. The decontamination area shall be equipped with a supply of soap, disposable towels and fresh water which shall be filtered and/or disposed of as asbestos waste following use. B. Construction of the Decontamination Chamber and Regulated Area For each regulated work area, provide a Decontamination Unit, consisting of 3

9 C. Removal a single chamber with moveable flaps. Require all persons, without exception, to pass through this decontamination unit for entry into and exiting from the work area for any purpose. The Decontamination Unit shall be sized adequately for the work involved and shall be of watertight, sturdy construction equipped with the appropriate water filtering and disposal systems. The Abatement Contractor shall post all appropriate signage as required by regulations. Warning signs and barrier tape shall be used as required by OSHA 29 CFR and 40 CFR 61. Warning signs shall be in both English and Spanish. As the Decontamination Unit is to be situated in an exterior location, the Abatement Contractor shall ensure that it is sturdy enough to withstand the outdoor environment and does not collapse from exposure to weather conditions. Provide temporary power and lighting as necessary. Ensure safe installation (including ground fault interrupters) of temporary power sources and equipment by compliance with all applicable electrical code requirements and OSHA requirements for temporary electrical systems. Appropriate Barrier Tape shall be installed around the area where it is intended work shall occur for the day. The Abatement Contractor shall place true 6-mil polyethylene (poly) sheeting on the areas below the work area and tape the sheeting on any adjacent structural members. Poly sheeting for stationary objects to-remain shall be a minimum of one layer of true 6-mil poly sheeting. Water hoses for use in wetting the ACM and/or removing any chemical stripper utilized inside the work area shall have flow control devices which can be controlled from within the work area to make water available as needed but avoid excessive water flow from the work area. The Abatement Contractor will perform the removal and disposal in accordance with current local, state and federal regulations. 1. Asbestos-Containing Expansion Joint Mastic Removal: These materials are intended to be removed with wet removal techniques and are to remain intact with as little disturbance as possible. Workers shall be in proper protective equipment and decontaminate through a single-chamber decontamination wet decontamination unit erected in a central location accessible to the workers. The materials will be removed in an exterior 4

10 regulated area with a single layer of 6-mil polyethylene covering the area in the vicinity/below the work areas. All solvent removal products shall be applied in accordance with manufacturer's recommendations and it is intended a minimum quantity of solvent shall be utilized to accomplish the project. The expansion joint mastic and/or any debris generated during abatement shall not be allowed to dry out. Remove the asbestos-containing expansion joint material from the expansion joint space and provide a concrete substrate which is substantially clear of mastic residue. A flash-point of greater than 140 Degrees Fahrenheit is required for any chemical solvent utilized on the project. Follow protective clothing requirements of manufacturer (gloves, eyewear, etc.). The expansion joint mastic material will be addressed as follows: The area adjacent to the material and expansion joint mastic materials shall initially be sprayed with amended water or removal encapsulant. Allow time for amended water or removal encapsulant to saturate the material. Do not over saturate or cause excess dripping. Once saturated, the asphalt adjacent to the expansion joint shall be manually removed with a spud bar, straight hoe or other tool as appropriate. The asphalt overlay which is removed and any expansion joint mastic adhering to the asphalt shall be collected and disposed of as ACM. Any mastic material which remains in the expansion joint shall be extracted with a screw driver or appropriate tool. Removal of any remaining asphaltic material shall be accomplished by applying an appropriate removal solvent and agitating the residue with rags. The ACM shall not be sanded, ground, sawed or abraded in any manner that could cause a friable asbestos hazard or visible fiber release. The expansion joint mastic materials shall be removed from the structure as intact as possible. Any backer rod materials shall be collected from the joint and disposed of as ACM following solvent removal operations. The debris which accumulates on the drop cloths shall be kept wet and placed into disposal bags as soon as practical. All waste/debris shall be placed in an appropriately labeled 6-mil polyethylene Asbestos disposal bag. Prior to removing the waste bags from the work area, the bags shall be wet wiped and placed within a second appropriately labeled 6-mil polyethylene Asbestos waste bag. All resulting waste will be disposed of in accordance with the guidelines discussed in Item D of the specification. Any expansion joint mastic found on the ground adjacent the bridge / overpass shall be collected by the Abatement Contractor and properly disposed of. The Abatement Contractor shall clean joints of dirt, sand, rocks and debris prior to removal of mastic. No chemical solvents or process waste water/liquids shall be allowed to be 5

11 discharged into any stream or Waters of the US. 2. Asbestos-Containing Spray-Applied Coating Removal: These materials are intended to be removed with wet chemical removal techniques and are to remain intact with as little disturbance as possible. Workers shall be in proper protective equipment and decontaminate through a single-chamber decontamination wet decontamination unit erected in a central location accessible to the workers. The materials will be removed in an exterior regulated area with a single layer of 6-mil polyethylene covering the area in the vicinity/below the work areas. All chemical remover/removal products shall be applied in accordance with manufacturer's recommendations, the time the remover must stay on the surface will depend on the number of layers of paint/coating, the type of paint associated with the coating, the temperature and humidity. The remover shall not be allowed to dry out. Remove the asbestos-containing coating down to the bare substrate. Neutralization shall be performed in accordance with manufacturer's recommendations. A flash-point of greater than 140 Degrees Fahrenheit is required for any chemical stripper. Follow protective clothing requirements of manufacturer (gloves, eyewear, etc.), however as a minimum, workers shall be required to wear single protective suits, hard-toed boots, hard hats, safety glasses, safety vests, and gloves whenever work is being conducted on the site. The spray-applied coating material will be addressed as follows: Apply the selected removal chemical to the area to be addressed during the work period. Apply any Kraft paper or activating agents as specified for the particular product being utilized. Allow product to react with coating and do not begin removal until it appears the product has had the desired effect. Manually remove the chemical removal product and asbestos-containing coating. Containerize waste as appropriate. Detail clean the work surface or apply an additional coating or alternative removal product as necessary. Spray work surface with amended water or neutralizing agent. During the removal of the spray-applied coating material, ensure that the material remains in a wet condition. Surrounding areas shall be periodically sprayed with water and maintained in a wet condition until the end of the work day or the work in the area is completed. The ACM shall not be sanded, ground, sawed or abraded in any manner that could cause a friable asbestos hazard or visible fiber release. The debris which accumulates on the drop cloths shall be kept wet and placed into disposal bags and containerized as soon as practical. All resulting waste will be disposed of in accordance with the 6

12 D. Disposal guidelines discussed in Item D of the specification. No chemical solvents or process waste water/liquids shall be allowed to be discharged into any stream or Waters of the US. 1. Once the ACM is removed, it will be double bagged and labeled in accordance with Texas Department of State Health Services (TDSHS) and OSHA guidelines. Pre-printed Generator Labels shall be affixed to each bag or wrapped component prior to being placed in the lined waste disposal dumpster or trailer. 2. All waste will be labeled in accordance with 29 CFR (f) of OSHA's Hazard Communication standard, and will contain the following information: DANGER CONTAINS ASBESTOS FIBERS AVOID CREATING DUST CANCER AND LUNG DISEASE HAZARD 3. The area between the bag-out area and the prepared waste receptacle shall be regulated with barrier tape during bag-out operations. The waste dumpster or trailer shall remain secured during all other periods. 4. Disposal of the asphaltic expansion joint components/debris, spray-applied texture, paint chips, polyethylene sheeting, chemical stripper, suits, respirator cartridges, expendable products, and any water which cannot be filtered onsite shall be the responsibility of the Abatement Contractor. If any chemical stripper waste is characterized as hazardous, waste minimization and/or segregation is recommended. The Abatement Contractor will be responsible for selecting and implementing an effective, onsite treatment technology, which will solidify and stabilize the hazardous waste to a concentration range within acceptable RCRA levels for land filling and shall be responsible for Toxicity Characteristic Leachate Procedure (TCLP) RCRA -8 analysis to demonstrate acceptability. Should the treatment technology fail to render the material scheduled for treatment to a standard less than that described herein, the Abatement Contractor shall be responsible for repeating the treatment, as necessary, at the expense of the Abatement Contractor or disposing of the materials as hazardous. Confirmation sampling of the treated material will be performed by a third party 7

13 representative selected by the TxDOT. Following confirmation sampling of the treated material and review, analytical results will be forwarded to the Abatement Contractor who will be responsible for selecting a Texas Commission on Environmental Quality (TCEQ) permitted non-hazardous disposal facility for the treated material. The waste will be disposed in an approved landfill. Verification of disposal at the landfill will be provided to the Consultant and TxDOT by the Abatement Contractor via the appropriate Waste Manifest. The Abatement Contractor will be responsible for providing the Consultant and TxDOT with all appropriate executed manifests and documentation of field activities within 30 days form the completion of the project. As defined in EPA Regulations (40 CFR 261.3), the term Hazardous Waste means solid waste or a combination of solid wastes that because of its quantity, concentration, physical, chemical, or infectious characteristics may cause or significantly contribute to increases in mortality or serious and irreversible, or incapacitating but reversible, illnesses or pose a substantial present or potential hazard to human health or the environment when improperly treated, stored, transported, or disposed. As defined in the regulations, solid waste is hazardous if it meets one of four conditions: (1) exhibits a characteristic of hazardous waste (40 CFR Sections through ); (2) has been listed as hazardous (40 CFR Section through ); (3) is a mixture containing a listed hazardous waste and a non-hazardous solid waste, unless the mixture is specifically excluded or no longer exhibits any of the characteristics of hazardous waste; and (4) is not excluded from regulation as hazardous waste. For the waste produced in this abatement, hazardous waste is waste that contains levels of RCRA listed metals above the Special Waste levels as determined by TCLP or waste that is corrosive, ignitable, or reactive and is not otherwise excluded. 5. The Abatement Contractor will be responsible for performing the transportation activities within Local, State and Federal Guidelines. The waste will be transported to the landfill in a lined closed top receptacle. The Abatement Contractor shall utilize Texas Department of Transportation (TxDOT) approved and State of Texas Licensed vehicles and equipment. The Abatement Contractor shall be responsible for utilizing State of Texas licensed drivers and equipment operators during all off-site transport related activities. The Abatement Contractor shall be responsible for meeting any State of Texas or Local requirements pertaining to the proper control on-site traffic and in the ingress/egress of off-site traffic. 8

14 6. The Abatement Contractor will be responsible for restoring the site to near its original condition including, but not limited to, removing all mobilized equipment from the site, removing any polyethylene sheeting from the site, removing all waste generated during the course of the project, replacing any signage which was removed, and removing all debris generated by the Abatement Contractor. 7. No chemical solvents or process waste water/liquids shall be allowed to be discharged into any stream or Waters of the US. E. Clearance PCM air sampling will be conducted in accordance with the NIOSH 7400 Method, throughout the work periods and shall serve as clearance/confirmation sampling within any regulated area. III. Contractor Submittals Submittals required for proper execution include but are not limited to the following: Pre-Construction Submittals (submitted to Consultant) Regulatory Notification Information Plan of Action Fire Action Plan Emergency Phone List Project Schedule Copy of Written Respirator Program which conforms to 29 CFR (b) OSHA Material Safety and Data Sheets (Product Handling) Negative Initial Exposure Assessment (If available) Construction Submittals (submitted to Consultant before start of work on-site) Licenses: Contractor, Supervisor, Transporter(s) NESHAP Training Certificate Personal Air Monitoring Lab Results List of Workers Worker Registration Certificates Medical Examination Results Worker Training Certificates Respiratory Fit Test Certificate 9

15 Certificates of Worker Acknowledgement For chemical removal products: Product identification, including name and address of manufacturer. Product description, performance and test data, and reference standards. OSHA Material Safety Data Sheet (MSDS). Project Closeout (submitted to Consultant) Contractor's Daily Log Waste Disposal Manifest Copies Certificate of Completion (if required) Releases, Occupancy Permits (if applicable) Personal Air Monitoring Lab Results (If available) RESUBMISSION: Revise submittals as required and resubmit as specified for initial submittal. Indicate any changes which have been made other than those requested by Consultant. CONTRACTOR RESPONSIBILITIES: Illegible submittals will be rejected and returned for re-submittal. Abatement Contractor is to schedule submittals according to general flow of Work and so as to allow for adequate and timely review of submittals by Consultant. Review submittals prior to submission and submit to Consultant in accordance with provisions herein. Verify field measurements, construction criteria, catalog numbers and similar data. Coordinate submittals with requirements of Work and Contract Documents. The Abatement Contractor s responsibility for errors or omissions is not relieved by Consultant s review. Contractor s responsibility for deviations from requirements of Contract Documents is not relieved by Consultant s review, unless Consultant is notified of deviations in writing at time of submittal, and gives written review of specific deviations. Do not begin work which requires submittals until reviewed submittals have been 10

16 reviewed and approved by Consultant. If required, reproduce and distribute copies after Consultant s review. CONSULTANT S RESPONSIBILITIES: Review submittals within two working days or indicate in writing reasons for reviews which require additional time. Review for conformance with design concept of project and information given in Contract Documents. Indicate results of review and return submittals to the Abatement Contractor for distribution. Consultant is not responsible for verification of field measurements, construction criteria, catalog numbers and other similar data. Review of separate items does not constitute review of an assembly in which items function. IV. Construction Notes The Abatement Contractor shall be responsible for submission of the 10 day NESHAP demolition/renovation notification and the payment of the notification fees included in the 10 day NESHAP demolition/renovation form. The Abatement Contractor shall provide a copy of the notification fee voucher and check to TxDOT to demonstrate payment of the fees. The Abatement Contractor will be responsible for providing water and electricity necessary to complete the project. Water and electrical service are not present on the site at this time. The Abatement Contractor will be responsible for coordinating the protection of all plumbing, natural gas and/or electrical connections associated with the structure and shall replace any components removed to facilitate their work as part of the project. The Abatement Contractor is to be current and in good standing on all asbestos abatement notification fees. The TxDOT reserves the right to verify Abatement Contractor s standing. 11

17 The Abatement Contractor shall maintain all records required by TDSHS Texas Asbestos Health Protection Rules Section Operations: Recordkeeping Abatement Contractor parking and disposal dumpster areas will be as designated by the TxDOT. The Abatement Contractor will keep work and staging areas clean. The Abatement Contractor shall arrange the use of any existing on-site toilet facilities with TxDOT or provide temporary self-contained toilet units for use by Abatement Contractor s personnel throughout the duration of abatement activities. The Abatement Contractor shall not leave debris or incinerate debris, on the bridge, in the creek below or upon any nearby property, dump waste by the road or in an unauthorized dumpster, or introduce asbestos or chemical-contaminated water into waterways, storm or sanitary sewers. The Abatement Contractor shall install one fire extinguisher in the work area for each 1,000 square feet of work area or part thereof. Additional fire extinguishers shall be installed in the employee changing area and adjacent to the decontamination chamber. The Abatement Contractor shall conduct a safety meeting for Abatement Contractor s employees with emphasis on safe operations in areas adjacent to traffic, operation of fire extinguishers, and emergency procedures in case of fire. Abatement Contractor shall have posted emergency phone numbers for the fire department and police. Abatement Contractor shall store a minimum of volatile substances on the job site and in fire resistant containers only. V. Products Amended Water: Provide water to which a surfactant has been added. Use a mixture of surfactant and water which results in wetting of the ACM and retardation of fiber release during disturbance of the material. Chemical/Solvent Mastic Removal Product: The Abatement Contractor shall select an appropriate product which appears to have the most effective reaction with the asbestos-containing mastic applied to the concrete bridge structure/members. 12

18 Products labeled for use in asbestos floor tile abatement projects shall be utilized. Products having a flash point below 140 degrees Fahrenheit are prohibited. Chemical Stripper/Coating Removal Product: The Abatement Contractor shall select an appropriate product which appears to have the most effective reaction with the asbestos-containing coating applied to the concrete bridge structure/members. Products labeled for use in paint removal shall be utilized. Appropriate products such as the various Piranha products, Foster s, or Pre-Tox lines of chemical paint removal products or their equivalent shall be utilized. Products containing Methyl Chloride or having a flash point below 140 degrees Fahrenheit are prohibited. Disposal Bags: Provide as a minimum, individual, 6 mil thick, leak-tight, manufactured polyethylene bags. Disposal Bag Labels: Provide labels with TxDOT s name, Abatement Contractor s name, Project site address and the following warnings and labels, in accordance with regulatory requirements. Labels shall be lettered with indelible ink. First Label: CAUTION CONTAINS ASBESTOS FIBERS AVOID OPENING OR BREAKING CONTAINER BREATHING ASBESTOS IS HAZARDOUS TO YOUR HEALTH Second Label: Provide in accordance with 29 CFR (f) of OSHA's Hazard Communication standard: DANGER CONTAINS ASBESTOS FIBERS AVOID CREATING DUST CANCER AND LUNG DISEASE HAZARD BREATHING AIRBORNE ASBESTOS, TREMOLITE, ANTHOPHYLLITE, OR ACTINOLITE FIBERS IS HAZARDOUS TO YOUR HEALTH 13

19 Third Label: Provide in accordance with U.S. Department of Transportation Regulation on hazardous waste marking. 49 CFR parts 171 and 172. Hazardous Substances: Final Rule: RQ HAZARDOUS SUBSTANCE, CLASS 9, NA 2212, PG III (ASBESTOS) Polyethylene Wrap: Provide minimum 6 mil polyethylene sheeting as a wrapping for large sections of rigid waste material. Provide minimum double layer of 6 mil polyethylene sheeting for floors. Provide minimum double layer of 4 mil polyethylene sheeting for wall areas. Removal Encapsulant: Provide a penetrating type encapsulant designed specifically for removal of ACM. Utilize an encapsulant that will meet or exceed the results produced by use of Amended Water, as described above. Sprayer: Provide a hand pump type pressure-can garden sprayer fabricated out of either metal or plastic, equipped with a metal wand at the end of a hose that can deliver a stream or spray of liquid under pressure. VI. Air Monitoring Services The Consultant shall verify that the Work performed is in compliance with applicable regulations and that the areas beyond the Work Area and the outside environment remain free of contamination. 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 Abatement Contractor if an action level is met or exceeded. AIR MONITORING: The Consultant will be conducting air monitoring throughout the course of the project. Work Area Airborne Fiber Count: The Consultant will monitor airborne fiber counts in the Work Area and adjacent areas. The purpose of this air monitoring will be to detect airborne fiber counts which may significantly challenge the integrity of Work Area isolation procedures that protect the areas outside of the regulated area from contamination by airborne fibers. 14

20 Final Clearance: The Consultant will conduct Aggressive PCM clearance sampling in accordance with the NIOSH 7400 Method, in any contained area in which abatement has occurred, unless all work area air samples obtained during abatement operations are analyzed as being <0.010 fibers/cc. If all work area air sample analytical results are <0.010 fibers/cc, no final clearance air sampling will be conducted. AIRBORNE FIBER COUNTS: 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 the Time Weighted Average (TWA) fiber count for any Work shift or eight (8) hour period exceeds 0.2 fibers per cubic centimeter, stop Work and leave ventilation system in operation. Do not recommence Work until authorized by the Consultant. Outside Work Area: Maintain an average airborne count outside the Work Area of <0.010 fibers/cc. If any air sample taken outside the Work Area exceeds fibers/cc, immediately and automatically stop Work until the source of the high fiber readings can be determined by the Consultant. Respiratory protection as set forth in the Work Practices Section shall be worn in affected area until the area is cleared for reoccupancy. Fiber Type Disputes: The following procedure will be used to resolve any disputes regarding fiber types when the Project has been stopped due to excessive airborne fiber counts: Air samples will be secured in the same area by the Consultant for analysis by Transmission Electron Microscopy (TEM) at the option of the Consultant and classified as retests and backcharged to the Abatement Contractor. ANALYTICAL METHODS: The following methods will be utilized at the discretion of the Consultant in collecting and analyzing air samples: Phase Contrast Microscopy (NIOSH 7400 Method, Issue 2, Revision 3 or OSHA Reference Method) 15

21 SAMPLE PROTOCOLS: General: The number and volume of air samples taken by the Consultant will generally be in accordance with the following schedules. Sample quantities, locations, volumes and methodologies may vary depending upon the analytical method, project layout, procedures used and at the discretion of the Consultant. SCHEDULE OF AIR SAMPLES: Base Line Sample Schedule: The Consultant will secure the following air samples to establish a Base Line before start of Work. The number of samples may vary according to site plan and on authorization of Consultant. Location Sampled Minimum Minimum Planned Number of Volume Analytical Samples Method Each Work Area Liters PCM Base Line Fiber Level: is an action level expressed in fibers per cubic centimeter which is the larger of either the average of the samples collected outside each work area or 0.01 fibers per cubic centimeter of air. The Base Line samples may be collected but archived (not read) at the discretion of the Consultant. Daily Sample Schedule (per 8-hour work period): The Consultant will generally take the following samples on a daily (8-hour work period) basis. The number of samples may vary according to site plan and on authorization of Consultant. Location Sampled Minimum Minimum Planned Number of Volume Analytical Samples Method Each Work Area PCM Outside Each Work Area PCM If airborne fiber counts exceed baseline limits, additional samples will be taken (and classified as retests) as necessary to monitor fiber levels and confirm sources. 16

22 Final Clearance Schedule (when necessary): The Consultant will collect the following samples once all visual release criteria are met and at least 94 air changes have occurred since the completion of gross removal operations. The number of samples may vary according to site plan and on authorization of Consultant. Location Sampled Minimum Minimum Planned Number of Volume Analytical Samples Method Each Work Area 3 1,250 Liters PCM Release Criteria: Gross decontamination is complete when every Work Area sample is below 0.01 fibers/cc or the Base Line outside the Work Area, whichever is greater. If any sample is above the limit indicated, then the gross decontamination is incomplete and recleaning by decontamination procedures and/or ventilation system cycling is required and primary containment barriers cannot be removed. INSPECTIONS: The Consultant, in addition to providing air monitoring services, will provide fulltime, on-site inspection of Work activities. Work shall not proceed without prior notice to the Consultant and presence of the Consultant on the Work site (requires 48 hours advance notice of Work). The Consultant will conduct the following key Project inspections and no work by the Abatement Contractor will proceed beyond these points until all discrepancies noted during the inspections have been corrected. The Consultant s inspections do not relieve the Abatement Contractor of Contract obligations and are not designed to locate all project discrepancies. The Abatement Contractor is responsible for project quality. First Key Inspection: Inspection of Work Area and Regulated Area Prior to Start of Removal: Removal operations shall not proceed until the Consultant has completed inspection of the Work Area preparations and until all discrepancies noted have been corrected. Second Key Inspection: Inspection During Removal: Removal Work shall not be conducted unless the 17

23 Consultant is on the Project site. Daily inspection of the Work Area and Work practices will be conducted. Upon discovery and report of a discrepancy, the Abatement Contractor shall immediately stop Work and correct the discrepancy. Third Key Inspection: Inspection of Work Area After Completion of Removal Work, but Prior to Encapsulation and Regulated Area Disassembly: A visual inspection of the Work area and removal surfaces will be conducted at this point by the Consultant and encapsulation and/or regulated area disassembly shall not proceed until discrepancies noted have been corrected. Fourth Key Inspection: Final Clearance: After encapsulation and/or final clean-up of the Work Area, but prior to removal of Regulated Area Barriers, the Consultant will conduct a visual inspection. Final Key Inspection: Project Closeout Inspection: A final inspection will be conducted by the Consultant after the Abatement Contractor has removed the Regulated Area Barriers, equipment, and supplies. A Project "Punch List" will be provided of any items requiring correction or completion. Punch List items shall be completed prior to issuance of final completion notice by the Abatement Contractor. Discrepancies or needed corrective measures observed by the Consultant will be reported to the Abatement Contractor s Superintendent on-site and shall be immediately corrected. The above inspections are not necessarily single events. Failed inspections will be re-conducted and time classified as retests and charged back to the Abatement Contractor. Inspections will require 24 hours advance notice to the Consultant. PERSONAL MONITORING: The Abatement Contractor may perform air monitoring as required to meet OSHA requirements for maintenance of Time Weighted Average (TWA) and excursion limit fiber counts for types of respiratory protection provided. TxDOT and Consultant will not be providing air monitoring services to meet these OSHA requirements. Note: Results of Personal Monitoring shall be submitted to the Consultant within 72 18

24 hours of the time samples are obtained. A listing of all personal monitoring results obtained during the project shall be submitted to the Consultant with the Abatement Contractor s closeout submittals. LABORATORY TESTING: The Consultant will perform field analysis of the air samples. A microscope and field laboratory will be set up at the jobsite, at the option of the Consultant, so that verbal reports on air samples can be obtained promptly after collection. Reports to TxDOT by the Consultant will include air monitoring data and pertinent information on work being conducted such as: work hours, number of workers, procedures utilized, Abatement Contractor discrepancies and corrective measures, containment methods and construction, and amount of ACM removed. 19

25 ADDENDUM A

26 PARTS OF CONSULTANT ASBESTOS INSPECTION REPORT(S)

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