Solomon_CH_HM_Spec_13280.pdf

SECTION 13280

HAZARDOUS MATERIAL REMOVAL

GUS SOLOMON COURTHOUSE GSA Project *********

Fire Alarm Project

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PART 1 GENERAL

1.1 SCOPE OF WORK.

A. The work requires the disturbance, removal, and disposal of the following asbestos-containing materials (ACM) or asbestos-contaminated materials from selected areas of the Gus Solomon Building. The Contractor shall follow all applicable Federal, State and local ordinances, regulations and rules, including storage, transportation and disposal.

B. Asbestos-containing materials exist in the building and may be disturbed during the course of the Fire Alarm Project. The contractor shall communicate all hazardous materials to all sub contractors as required under OSHA 29 CFR 1926 and OROSHA

OAR437 Division 2. The disturbance of ACM may result in Class I, II, or III work.

C. Lead Paint is present on interior plaster walls, with the exception of the basement.

All structural concrete and ornamental ceilings were found to contain lead paint.

Painted trim work should be assumed to be lead containing.

D. The contractor shall be responsible for proper storage, use and waste disposal of any hazardous materials, chemicals or noxious products or processes used for removal and re-installation of materials.

E. The Contractor shall be responsible for coordinating work and isolation of building systems to avoid exposure outside work areas to asbestos fibers, lead dust, nuisance dust, fumes or noxious odors caused by the work.

F. Related work specified elsewhere

1. Section 01133 - Environmental Responsibility.

2. Section 02220 - Selective Demolition

3. Section 09900 - Paints and Coatings

1.2 DOCUMENTS. The current issue of each document incorporated by reference herein shall govern. Where conflict among requirements or with this specification exists, the more stringent requirements shall apply.

A. OSHA Regulations

1. 29 CFR 1910 OSHA General Industry Standards.

2. 29 CFR 1926 OSHA Construction Safety Standards.

3. 29 CFR 1926.1101, OSHA Asbestos Standard.

4. 29 CFR 1910.1200, OSHA Hazard Communication Standard

5. 29 CFR 1926.62, OSHA Lead in Construction Standard

6. 29 CFR 1910.134, OSHA Respiratory Protection Standard

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B. Environmental Protection Agency (EPA) Regulations

1. NESHAP. Asbestos National Emission Standards for hazardous Air

Pollutants. 40 CFR 61, Subparts A (General Provisions, Sections 01-10) and

M (Asbestos, Sections 140-157), including AInterpretive Rule for Roof

Removal Operations Under the Asbestos NESHAP@, FR v. 59 - No. 116, June 17, 1994.

2. RCRA. Resource Conservation and Recovery Act regulations. 40 CFR 260-

299.

3. U.S. Environmental Protection Agency Toxic Substance Control Act, TSCA, (Code of Federal Regulations Title 40, Part 761)

4. U.S. Environmental Protection Agency Office of Toxic Substances Guidance

Document, Summary of PCB Regulations, EPA Document Number 910-S-94-

002.

5. Comprehensive Environmental Response, Compensation and Liability Act

(CERCLA) regulations (40 CFR 300-399).

C. DOT regulations. Provide special attention to the Hazardous Materials Regulations, 49 CFR 171-180.

D. NIOSH Method 7400. Fibers - phase contrast microscopy.

E. General Services Administration (GSA) regulations. Provide special attention to the

Federal Property Management Regulations, especially 41 CFR 101-20.3, Conduct on

Federal Property.

F. State and local regulations. Those regulations promulgated under the Clean Air Act or Occupational Safety and Health Act and incorporated in a State plan recognized by

EPA or OSHA, respectively. These include, but are not limited to:

1. Oregon Department of Environmental Quality, Oregon Administrative Rule

340 Div.248, Asbestos Requirements

2. Oregon OSHA 1910.1101 Asbestos

3. Oregon OSHA 1926.62 Lead

1.3 DEFINITIONS

A. (ACM) Asbestos-containing material or asbestos material. Any material containing more than 1 percent asbestos as determined by the method specified in 40 CFR

61.141.

B. Competent Person (Asbestos). In addition to the definition in 29 CFR 1926.32 (f), one who is capable of identifying existing asbestos hazards in the workplace and

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selecting the appropriate control strategy for asbestos exposure, who has the authority to take prompt corrective measures to eliminate them, as specified in 29 CFR

1926.32(f): in addition, for Class I and Class II work who is specially trained in a training course which meets the criteria of EPA's Model Accreditation Plan (40 CFR

763) for supervisor, or its equivalent and, for Class III and Class IV work, who is trained in a manner consistent with EPA requirements for training of local education agency maintenance and custodial staff as set forth at [40 CFR 763.92 (a)(2)].

C. Decontamination Area (Decon): enclosed area adjacent and connected to controlled/ regulated work area, consisting of an equipment room and clean room, which is used to decontaminate workers, materials, and equipment. Where PCB removal is done in conjunction with asbestos or lead abatement the Decon may be used for this purpose.

D. HEPA Filter. A High Efficiency Particulate Absolute filter capable of trapping and retaining 99.97% of particles with aerodynamic equivalent diameters greater than or equal to 0.3 micrometers.

E. HEPA Filtered or HEPA Vacuum Equipment. Equipment equipped with a HEPA filter in the exhaust outlet, and so designed and maintained that 99.97% of particles with aerodynamic equivalent diameters greater than or equal to 0.3 micrometers in the inlet air are collected and retained. In no case shall a permissible HEPA filtered or HEPA vacuum equipment permit the discharge of air containing more than 0.01 fibers/cc. All such equipment used under this contract shall be certified by manufacturers as meeting ANSI Z9.2.

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

G. Lead. Metallic lead and inorganic and organic compounds of lead.

H. Lead-based Paint. Any paint, varnish, shellac, or other coating that contains lead concentrations equal to or greater than the limits of detection as measured by laboratory analysis using Atomic Absorption Spectroscopy (AAS). Analysis must be performed by a lab that successfully participates in the American Industrial Hygiene

Association - Environmental Lead Proficiency Analytical Testing (AIHA-ELPAT)

Program.

I. Regulated Asbestos Containing Materials. Friable asbestos containing material, or category I non-friable ACM that has become friable, or category I non-friable ACM that will be or has been subjected to sanding, grinding, or abrading. Material which has been “cut” by other than manual methods may also be included in this definition.

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J. TCLP: Toxic Characteristic Leaching Procedure is one of the tests for the determinations of whether a solid waste is classified as a hazardous substance via

EPA Method 1311.

K. Universal Waste: Any waste that is a universal waste listed in 40 CFR 273.1 and subject to the universal waste requirements of 40 CFR Part 273.

L. Waste Shipment Records: Form similar to Uniform Hazardous Waste Manifest or an

EPA approved state form.

1.4 SUBMITTALS

A. Submittal Section 01300, Procedures for submittals.

B. Training. Provide evidence that all employees performing hazardous materials work covered by this Section have been properly trained.

1. Asbestos Abatement. Meet the requirements of 29 CFR 1926.1101 and/or other appropriate state requirements.

2. Lead Awareness. Meet the requirements of 29 CFR 1926.62 and/or other appropriate state requirements.

C. Competent Person. Provide a statement of qualifications for the Competent Person to be utilized for this project. The qualifications of the Competent Person are subject to review and approval by the Contracting Officer.

D. Work Plan. Provide a written statement from the Competent Person which describes asbestos and lead work practices, engineering controls and disposal methods. Any

Hazardous Material handling or abatement procedures involving work methods other than full isolation shall be described and must be approved by the Contracting

Officer.

1. Provide a copy of the site-specific written lead compliance plan in accordance with 29 CFR 1926.62. Refer to paragraph 3.4C of the specification for lead waste sampling and disposal plan requirements.

2. The work plan shall also include decontamination procedures and plans for a decontamination area. Also include emergency control and cleanup procedures and emergency phone number(s).

E. Copy of project notification to the Oregon Department of Environmental Quality or

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other regulatory notifications, as applicable.

F. Product Data.

1. Submit complete product information for chemical removal agents and for any materials, products and procedures for which the Contractor requests approval for use on this job. The Contractor shall identify any concerns with possible chemical reaction with new materials, coatings, etc. to be installed after chemical stripping.

2. Provide Material Safety Data Sheets for all applicable chemicals and solvents used on the project.

G. Submit all information to the contracting officer for approval two (2) weeks prior to starting work.

H. Post Abatement Submittals.

1. Submit copies of all hazardous waste disposal and recycling records as indicated in this section.

2. Submit complete as abated plans that include all asbestos-containing materials abated as indicated in section 01300 – submittals.

3. Submit daily logs including personnel present in controlled work areas, quantity of hazardous material removed, and air monitoring results.

1.5 ASBESTOS INSPECTION, TESTING AND QUALITY ASSURANCE

A. Inspections. The Contracting Officer will, at their discretion, perform site visits and inspections. The Contracting Officer may be performing worker and/or area sampling inside and immediately adjacent to the work area during work. This monitoring, if performed by the Contracting Officer, does not alleviate the Contractor from the responsibility of performing; hazard assessment, initial determination, training, written compliance programs, employee exposure testing, etc. that may be required.

Any newly discovered suspect asbestos-containing materials will be sampled and analyzed by the Contracting Officer.

B. Inspection elements. The Contracting Officer will, at their discretion, inspect the project including, but not limited to: negative pressure differential, integrity of containment barriers, decontamination enclosures and protective coverings;

plumbing; electrical equipment safety and grounding; worker protection program; air

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monitoring program; performance of abatement measures including work area preparation and isolation, removal, surface sealing, patching, and disposal;

emergency equipment and procedures; and conformance to EPA, OSHA, State environmental and occupational safety and health agency (where applicable) and other Government requirements.

C. Other areas. The Contracting Officer will, at their discretion, sample other building areas during work in order to assess the potential exposures to Government staff, building tenants, visitors and contractors.

D. Violations. If, at any time, the Contracting Officer determines that Contractor practices or procedures are in violation of the provisions of this contract or are endangering workers, tenants, the general public or the facility, the Contracting

Officer will immediately notify the Contractor orally that corrective action must be taken.

E. Outside containment air levels. If fiber levels in other areas of the building exceed airborne asbestos concentrations of 0.01 fibers/cc and are determined by the

Contracting Officer to be related to the Contractor's abatement work, the Contractor shall sufficiently clean such areas to reduce the fiber levels to 0.01 fibers/cc or below.

The Contractor is responsible for all costs including additional testing and inconvenience to the building users.

F. Asbestos Clearance Sampling Initiation. Prior to the Contracting Officer beginning visual and physical inspection and air monitoring for clearance, the Contractor’s

Asbestos Supervisor shall inspect all areas to verify that the asbestos has been abated, that surfaces been cleaned, that asbestos waste and debris inside and outside the work area have been collected and bagged in accordance with this contract, and that the work area is ready for clearance inspection.

G. Clearance inspection. The Contracting Officer shall inspect the work area and surrounding areas for clearance using visual and physical methods, prior to clearing the project for air monitoring clearance procedures. The Contracting Officer may use the ASTM Standard E 1368, Practice for Visual Inspection of Asbestos Abatement

Projects. The definition of achievable cleanliness may vary for each type of ACM removed. In general, all three dimensional ACM and residue shall be removed.

H. Post-abatement and clearance air monitoring. This air monitoring may be conducted by the Contracting Officer or an independent industrial hygienist representing the

Government, using aggressive sampling techniques. Execution of post-abatement cleanup and associated air sampling shall be performed in accordance with this

Section.

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I. Sampling. The Contracting Officer shall start the sampling pumps and sample at least

1920 liters of air for PCM clearance or at least 1200 liters of air for TEM clearance.

J. PCM Clearance. The airborne fiber level required for post-abatement and clearance measurement is 0.01 fibers/cc as determined by fiber analytical method NIOSH 7400

- AA counting rules”.

K. Resampling. The Contractor shall bear all costs associated with re-sampling and re-cleaning which may be necessary due inadequate engineering controls or to poor work practices.

1.6 LEAD EXPOSURE MONITORING AND QUALITY ASSURANCE

A. Contractors shall perform employee exposure assessments as required under the standard for any employees performing tasks that may result in exposures above the

Action Level.

B. An Independent Testing Laboratory shall be retained by the Contractor. All exposure monitoring analysis shall be performed in accordance with 29 CFR Part 1926.62.

1. The samples shall be collected and analyzed using NIOSH Analytical Method

No. 7105 or 7082.

2. The Contractor's testing laboratory shall submit sample analysis results to the

Contractor verbally within 3 days from the time of collection.

3. The Contracting Officer reserves the right to monitor Contractor's performance via air, dust wipe, water and TCLP samples during removal work, in addition to the Contractor's exposure monitoring and testing.

C. QUALITY ASSURANCE

1. Periodic monitoring of air and surface dust may be analyzed by the

Contracting Officer in occupied spaces and containment areas. The following post work testing and lead exposure limits shall apply to all areas where lead-handling procedures are undertaken.

a. Air Samples:

30 ųg/m

- OSHA Action Level

(8-hour Time-Weighted Average)

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50 ųg/m

- OSHA Permissible Exposure Limit

(8-hour Time-Weighted Average)

b. Dust Samples: (Expected levels at completion of work )

40 ųg/ft

- Clearance Level for interior floors (minimum of 1 sample per work area)

250 ųg/ft

- Clearance Level for interior window sills (minimum of 1 sample per work area)

400 ųg/ft

- Clearance Level for rough surfaces, exterior concrete or window troughs (minimum of 3 samples for each side of the building)

c. Blood Lead Levels:

40 ųg/dl - (OSHA) permissible blood level for worker

50 ųg/dl - (OSHA) blood level requiring medical removal of worker

d. Dispose of as Hazardous Waste:

5 ppm Pb - (analyzed as "leachable" using Toxicity Characteristic

Leachate Procedure - TCLP EPA Method 1311)

e. Paint:

Painted surfaces with lead concentrations greater than the limits of detection as determined by atomic absorption, EPA Method 7420-

3050.

2. Post work limits may be adjusted to reflect existing conditions as established by pre work sampling at the discretion of the Contracting Officer

3. If, at any time during the work, analysis of occupied area air or wipe samples taken by the Contractor or Contracting Officer indicates a concentration in excess of the allowable maximums specified, the contractor shall immediately notify the General Contractor's superintendent and the Contracting Officer.

4. Immediately upon being notified of concentrations exceeding the specified maximum allowable levels, the Contractor shall perform the following steps

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in the order presented, at no additional cost to the Government:

a. Stop Lead related work.

b. Identify source of high lead concentrations.

c. Immediately correct any containment breaches, pressure differential changes, or other potential cause. The Contracting Officer will determine the affected area and affected adjacent areas considered to be contaminated and will determine the actions to be taken by the

Contractor at no additional cost to the Government.

1) Clean the affected area and the affected adjacent areas.

Cleaning shall use a high phosphate wash method or other approved and HEPA vacuuming.

2) Resample air and surfaces until concentrations are determined to be below the specified maximum levels.

3) Secure and repair containment barriers, repair or add equipment.

4) Modify work procedures, and make other changes determined to be the possible cause of high lead concentrations.

5. The Contractor shall be responsible for costs of any testing, cleanup, repair, down time loss, etc. that is a result of the Contractor's negligence, poor maintenance of containment areas or improper procedures.

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PART 2 PRODUCTS AND EQUIPMENT

2.1 ASBESTOS ABATEMENT AND LEAD HANDLING PRODUCTS

A. Plastic sheet. Sheet shall be fire-retardant polyethylene sized in lengths and widths to minimize the frequency of joints. The minimum thickness shall be that which prevents release of asbestos through tearing, separation or other reasonably foreseeable means, and in no case shall be thinner than 6 mil (0.15 mm).

B. Plastic bags. Bags shall be 6 mil (0.15 mm) minimum polyethylene.

C. Tape. Tape shall be capable of sealing joints of adjacent sheets of plastic and of attaching plastic sheet to finished or unfinished surfaces of dissimilar materials, and shall be capable of adhering under dry and wet conditions, including wetting by amended water.

D. Labels, markings and signs. Shall be in accordance with OSHA, EPA and DOT regulations.

E. Surfactants (wetting agents). Surfactants shall be certified by their manufacturer as complying with EPA regulations controlling the use of volatile organic compounds, and such State and local regulations under an EPA-approved State Implementation

Plan.

F. Encapsulants. Encapsulants shall be classified or certified by Underwriters

Laboratories, and shall not degrade the function of any replacement material. They shall be certified by their manufacturer as complying with EPA regulations controlling the use of volatile organic compounds, and such State and local regulations under an EPA-approved State Implementation Plan.

G. Lock-down (post-removal) encapsulants. When used as a lock-down (post-removal) encapsulant on a surface after removal of asbestos-containing material, the encapsulant must be classified or certified by UL for use with the specific fireproofing material (trade name) and applied at the specified rate of application.

H. Glovebags. Bags shall be made of 10 mil (0.25 mm) minimum clear polyvinyl chloride. Bag shape shall include "shoulders" to be used with straps. Sizes and shapes chosen shall be suitable for the pipe and fitting formations included in this contract. The bags shall have a closure system, such as a double zipper or self-closing cloth strip. The bags shall have a zipper lock or equivalent feature that seals the lower part of the bag from the top part to remove asbestos-containing debris.

2.2 TOOLS AND EQUIPMENT.

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A. The Contractor shall furnish all equipment such as lumber, nails, ladders, HEPA vacuums, and hardware and supplies which may be required to construct and dismantle the decontamination areas and the barriers that isolate the work area. The

Contractor shall provide other suitable tools for the abatement activities including but not limited to: hand scrapers, wire brushes, sponges, mops, and shovels.

B. Electrical. Electrical tools and equipment shall meet all applicable codes and regulations, including, in particular, 29 CFR 1910.304(f)(5)(v) and 29 CFR

1926.400-449.

C. Grounding. Ground fault circuit-interrupters shall always be used for all electrical equipment, except to the extent provided in an assured equipment grounding conductor program, 29 CFR 1926.404(b)(1)(iii).

D. Additional requirements. Other OSHA requirements for equipment grounding conductors, beyond those described in the grounding paragraph, apply.

E. Equipment, including protective clothing and respirators, if applicable, used in the execution of this contract and provided to visitors to the site shall comply with all applicable federal, state and local regulations. HEPA filtered equipment shall meet or exceed the requirements of ANSI Z9.2.

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PART 3 EXECUTION.

3.1 ACM REMOVAL

A. Asbestos Notification. The Contractor shall provide notification to all applicable

Federal, State and Local regulatory agencies.

B. Work area isolation.

1. Isolation. Completely isolate the Work Area from other parts of the building so as to prevent asbestos-containing dust, lead dust or other debris from passing outside the isolated area. The contractor shall determine the appropriate means of isolation. Should the area outside the Work Area(s) become contaminated with asbestos-containing dust or debris as a consequence of the work, clean those areas in accordance with the procedures in the Plan of Action. Perform all such cleaning or decontamination and all related testing as deemed necessary by the Contracting Officer at no additional cost to the Government. Alternate methods to Work Area Isolation shall require approval by the Contracting Officer.

2. HVAC. Disable HVAC or any other system bringing air into, out of, or through the Work Area. Disable system by lockout, disconnecting wires, removing circuit breakers by lockable switch and/or other positive means that will prevent accidental premature restarting of equipment.

3. Decontamination. From the time the Contractor is ready to begin asbestos removal until all barriers and decontamination systems are removed, all personnel, equipment, materials, and waste containers leaving the work area shall be decontaminated as per applicable provisions of this contract.

C. Work area containment.

1. Any containment barriers erected must not damage any historic finishes when erected or removed.

2. Containment Barriers.

a. Enclosure. The Contractor shall construct and maintain a negative pressure enclosure around the work area in accordance with 29 CFR

1926.1101(i) if full negative pressure enclosures are utilized.

b. Walls. Walls shall be covered with at least one layer of 4 mil

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(0.10 mm) minimum plastic sheet. Floors shall be covered with at least two layers of 6 mil (0.15 mm) (minimum) plastic sheet.

Additional layers of 4 mil (0.10 mm) minimum plastic sheet may be used as drop cloths to aid in cleanup of bulk materials.

c. Decontamination system. The decontamination enclosure system, described in paragraph 4.a, shall be sealed to the containment barrier.

d. HVAC system isolation. Provide at a minimum 2 layers of 6-mil (15

mm) plastic around ductwork or over openings of the HVAC system in the regulated area.

3. Pressure differential ventilation system.

a. Local exhaust. Provide a local exhaust system in the asbestos control area as required to meet the asbestos control limit as listed in 29 CFR

1926.1101(g)(2)(i) and to prevent contamination of areas adjacent to abatement work.

b. Equipment. Local exhaust equipment must be in accordance with

OSHA guidance in 29 CFR 1926.1101, (9)(5)(A)(3) Appendix F, or the Contractor shall demonstrate by alternate means the adequacy of prevention of contamination of areas adjacent to abatement work.

c. Exhaust. All HEPA-filtered exhaust units shall be vented outside of the building unless authorized by the Contracting Officer.

d. Notification. Following isolation of the work area and initiation of the pressure differential ventilation system, notify the Contracting Officer for inspection of the system prior to removal of asbestos.

e. Work initiation. Removal shall not commence until adequate pressure differential has been demonstrated.

4. Work area enclosure system maintenance.

a. Documentation. The continued effectiveness of the barriers and negative pressure system shall be documented throughout the abatement process through continuous monitoring of pressure differential (by recording instrumentation) and ongoing inspections of all barriers.

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b. Sealing of containment. The Contractor shall ensure that containment barriers and plastic linings are effectively sealed and taped. It shall repair damaged barriers and remedy defects immediately upon their discovery.

5. Decontamination enclosure system.

a. Components. The Contractor shall provide a decontamination enclosure system outside of the work area consisting of:

contaminated/equipment room, shower room, clean room and equipment/waste removal room.

6. Clothing. Provision shall be made for the secure and sanitary storage of workers' street clothing and valuables in the clean room or in the area adjacent to the clean room or containment barrier.

7. Protection. Workers shall be fully protected with respirators and protective clothing at all times while inside the work area, from immediately prior to preparation work of floor tile to be removed or the first disturbance of other asbestos-containing material until the Contracting Officer has declared the space to be uncontaminated after the final cleanup and clearance has been completed.

D. General asbestos removal.

1. Adequate wetting. The asbestos-containing material shall be sprayed, injected or otherwise adequately wetted with amended water. If sprayed, a fine low-pressure spray shall be applied to minimize fiber emission during the spraying.

2. Removal. Removal of the asbestos-containing material shall be done in small sections. Particular care shall be taken to avoid release of asbestos through substrate penetrations or containment barrier openings. Asbestos-containing materials shall be removed while wet.

3. Surface cleaning. After completion of gross asbestos removal work, all surfaces from which asbestos has been removed shall be wire-brushed and/or wet-scrubbed, or cleaned by an equivalent method, to remove all visible asbestos-containing material. During this work, the surfaces being cleaned shall be kept wet whenever feasible.

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4. Sealing (lock-down encapsulation). Lock down any residual asbestos fibers that may remain on all surfaces from which asbestos has been removed with a encapsulant sealer.

3.2 LEAD HANDLING PROCEDURES

A. Area containment preparation.

5. The Contractor shall perform lead handling procedures under full or partial containment when work practices result in the generation of lead dust or if work is expected to create exposures greater than the Permissible Exposure

Limit (PEL) of 50 µg/m . The following lead handling procedures shall always be performed under full containment: abrasive blasting, welding and torch cutting, grinding or dry sanding, heat gun removal, and chemical stripping of lead paints or varnishes with volatile chemicals. Partial containment will be acceptable for tasks such as selective demolition, spot chemical removal and patching of surfaces. Alternate methods to Work Area

Isolation shall require approval by the Contracting Officer.

6. The Contractor shall perform the following containment procedures in the order in which they are presented. Alternative engineering control methods considered by the Contractor must be proven by historical data and/or approved by the Contracting Officer. The liberal use of water spray, ventilation and HEPA air filtration devices are most effective for reducing airborne lead concentrations.

B. Full containment area preparation.

1. Shut down and isolate HVAC systems associated with affected work area to prevent contamination and dust migration.

2. Coordinate all electrical, safety and other service connections, requirements and equipment with the Owner. Use a journeyman electrician at a minimum.

It is the Contractor's responsibility to verify operation of systems that will be shut off during work.

3. Install critical barriers wherever feasible.

4. Set up the worker decontamination enclosure system. Once this system is installed, it shall be utilized in the specified manner for the ingress and egress of all personnel and equipment, except in emergency situations.

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5. Install HEPA air-purifying equipment pressure differential fan system whenever feasible. Discharge from air-purifying equipment shall be ducted outside the building. During activities that created large amounts of dust by dry removal, scraping, sanding, etc. airflow shall be no less than 4 air changes every 60 minutes with a minimum pressure differential of 0.02" wg between the work area and the decon clean room.

6. Maintain emergency and fire exits from the work areas, or establish alternative exits satisfactory to the local building or fire department officials.

Ensure that all exits remain unobstructed and well marked.

7. Adequate portable fire extinguishing equipment shall be maintained within work area as defined by OSHA and/or local fire department officials.

8. Periodic inspections shall be made as required during each shift to assure continued proper functioning of the containment and HEPA system.

C. Partial containment work area.

1. Tasks requiring partial containment include items such as: Selective demolition, exterior paint removal, patching and repair of painted components and other tasks where incidental exposures to airborne lead concentrations are likely to occur. Historical testing and monitoring of similar procedures may alleviate partial containment requirements.

2. Contractor shall perform the following procedures in the order in which they are presented and describe procedures for exterior paint removal and other work in nonisolated work areas.

a. Seal off airflow HVAC systems serving other building areas.

b. Restrict access to work area by erecting temporary fencing or barrier tape. Post warning signs at a 20-foot perimeter around the work area.

c. When performing activities that create large amounts of visible dust on interior work, install localized HEPA exhaust fan in work area. Locate fan intake to immediate area of work in such a manner that any lead dust released will be drawn away from the worker and into intake duct.

d. Cover floor and other surfaces below work area with 4-mil plastic

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sheeting. Extend plastic sheeting 5 feet beyond perimeter of exterior window being treated. Provide adequate anchoring to plastic sheeting to avoid damage from wind and work traffic. Attach two layers of plastic to interior window if working on window from outside. Use heavy reinforced plastic sheeting for exterior containment if necessary.

Do not conduct exterior work if wind speeds are greater than 20 miles per hour or if paint chips cannot be controlled within the work area.

On rain days, outside work must stop and be cleaned up if paint chips cannot be controlled.

e. Have emergency cleanup equipment and supplies, including HEPA vacuum, wash water, disposal bags, mop, buckets, towels and sponges, on hand prior to start of the work.

f. Clean work areas with HEPA vacuum and wet wash during and after paint removal activities. Avoid excessive accumulation of stripped material in work areas. Pick up all visible paint chips around exterior of building.

3.3 INTERIOR WALL CAVITY WORK

A. Where the work involves the penetration of interior wall cavities dust control shall be implemented. The penetration of the wall shall not release dust outside the controlled work area.

B. Following wall penetrations the work area shall be cleaned so that no visible dust is present on the floor, trim, sills, doors, within a 6ft. perimeter of the work area.

3.4 DISPOSAL

A. The Contractor shall properly package, transport and dispose of or recycle all

Hazardous Materials in accordance with all applicable state and federal rules.

B. Hazardous Waste shipment records.

1. Preparation. The Contractor shall prepare the waste shipment records. Upon submitting each waste shipment record for a shipment of hazardous waste to the Contracting Officer for signature, the Contractor shall make available the transport vehicle and the hazardous waste packages for inspection by the

Contracting Officer so that the Contracting Officer can check for significant discrepancies in the amount of waste (for example, number of bags or drums, or volume of waste) and its condition (for example, whether the bags or drums

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appear to be sealed and not leaking).

2. Initially signed records. The Contractor shall provide waste shipment record(s) signed by the Contracting Officer, the Contractor and the initial transporter to the Contracting Officer when wastes are removed from the facility property.

3. Depositing. Regulated asbestos waste shall be deposited as soon as practical at a regulated waste disposal site.

4. Providing completely signed records. Completed waste shipment record(s) signed by the Contractor, all transporter(s), transferrer(s), disposal and/or conversion facility(ies), shall be provided to the Contracting Officer within 30 days of the time at which the asbestos-containing wastes are received at the disposal and/or conversion facility(ies), which shall be no longer than 40 days after the waste was accepted by the initial transporter.

C. Lead waste sampling and disposal plan

1. Submit waste sampling plan indicating representative items, components, and materials to be tested to characterize hazardous and nonhazardous waste.

Indicate expected number of representative samples anticipated to be taken of each type of waste and methods of analysis. Waste categories requiring TCLP testing or hazardous waste profiling shall include but not be limited to concentrated waste streams such as: non-recycled lead components, paint chips, chemical waste, cleaning and filtration media, protective coverings, etc.

Samples of representative waste shall be taken and analyzed by an independent testing laboratory. Submit written proof that all required permits and arrangements for transport and disposal of lead containing and any associated hazardous materials have been obtained. The Contractor shall be responsible for the proper disposal of all hazardous and nonhazardous waste materials associated with lead handling procedures, including selective demolition involving materials with lead-based paints.

3.5 RE-ESTABLISHMENT OF OBJECTS AND SYSTEMS

A. Completion. When cleanup is complete the Contractor shall perform follow-up work described below.

1. Remove all temporary plastic sheeting and other temporary protective materials.

2. Restoration. Any items moved from the work area in preparation for removal

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shall be replaced and reinstalled, with materials, finishes, location and workmanship to match existing conditions before the start of work, except as provided elsewhere in this contract or as directed by the Contracting Officer.

3. Systems. Mechanical, and electrical systems shall be reestablished in proper working order, if applicable, with the coordination of the Contracting Officer, except as provided elsewhere in this contract.

END OF SECTION