02 82 00 Asbestos Abatement (April 28 2021) Bid Amendment 02.pdf

FIRE ALARM AND NOTIFICATION SYSTEM REPLACEMENT

BRICKER U.S. FEDERAL BUILDING AND GARAGE 100% CONSTRUCTION DOCUMENTS

BID AMENDMENT 2 AUGUST 3, 2022

Section 02 8200 - Asbestos Abatement

SECTION 02 8200 – ASBESTOS ABATEMENT

PART 1 GENERAL

1.01 Scope of Work

A. Refer to the drawings and all bid amendments, bulletins, etc. as well as Section 011000 SUMMARY and the project drawings including scope of work areas.

B. Refer to the August 2022 Hazardous Materials Report from Resource International and the TRC Hazardous Materials Report (August 2019). This is for both the garage and building.

1.02 Schedule and Phases

A. Contractor shall coordinate all work and prepare an abatement construction schedule along with dates/time the work will be performed. All abatement work shall be coordinated with the GSA PM and Property Management. Indicate if the work to be performed in phases and describe the phases with a narrative indicating the extent of each phase on the hazardous materials drawings or asbestos abatement drawings.

List the number of days and/or the number of work shifts that are required to complete the work described in Section 1.01 above, per phase, if applicable. Refer to Section 011400 Work Restrictions for working hours. Indicate if the work will be performed within normal business hours or nights and weekends.

1.03 References

A. Occupational Safety and Health Administration (OSHA) Safety and Health Standards 29 CFR Part 1910.

B. OSHA Safety and Health Regulations for the Construction Industry 29 CFR 1926.1101.

C. Environmental Protection Agency (EPA) National Emission Standards for Hazardous Air Pollutants (NESHAP) 40 CFR 61.

D. EPA Asbestos Hazard Emergency Response Act (AHERA) 40 CFR 763.

E. GSA projects must comply with Federal, State, and local environmental laws, regulations, and codes even when permitting or approvals from local regulators are not required.

F. Where a conflict exists between applicable codes or standards, the more stringent requirement will take precedence.

1.04 Definitions

A. Abatement: The removal, encapsulation, enclosure or repair of asbestos containing materials.

B. Asbestos: The asbestiform varieties of serpentine (chrysotile), amosite, riebeckite (crocidolite), tremolite, anthophyllite, and actinolite as identified using polarized light microscopy.

C. Asbestos containing material (ACM), regulated: Any material or building product that contains more than 1.0 percent asbestos by visual observation using polarized light microscopy (PLM).

D. Asbestos project designer: A person who has completed an EPA-approved model accreditation plan (MAP) 3-day project designer course. The asbestos project designer shall design all aspects of each asbestos abatement project or may review and accept the design of others.

E. Asbestos project supervisor: A licensed asbestos abatement contractor holding a valid license in the State in which the work is being performed.

F. Background levels: The concentrations of airborne fibers as determined by phase contrast microscopy (PCM) or airborne asbestos fibers as determined by transmission electron microscopy (TEM), in and adjacent to, the regulated areas, prior to the start of the work.

G. Class I asbestos work: Activities involving the removal of thermal system insulation (TSI) and surfacing ACMs.

H. Class II asbestos work: Activities involving the removal of ACM which is not TSI or surfacing ACM. This includes, but is not limited to, the removal of asbestos-containing wall boards, floor tile and sheeting, roofing and siding shingles, and construction mastics.

I. Class III asbestos work: Repair and maintenance operations where ACM, including TSI and surfacing ACM is likely to be disturbed.

J. Class IV asbestos work: Maintenance and custodial activities during which employees contact but do not disturb ACMs, and activities to clean up dust, waste, and debris resulting from class I, II, and III activities.

K. Clearance air monitoring: The employment of aggressive air sampling methods with a volume of air sufficient to determine the airborne fiber concentrations with a detection limit of less than 0.01 fibers per cubic centimeter (f/cc) as determined by PCM or 70 structures per square millimeter as determined by TEM.

L. Critical seal: One or more layers of 6-mil thick opaque or colored plastic sheeting sealed over openings into a regulated area or any other similarly placed physical barrier, sufficient to prevent airborne fibers in a regulated area from migrating to adjacent areas.

M. Exterior work: Work that is performed outside of a building where at no time waste, workers, materials, tools, or debris will enter or pass through the interior of the building.

N. Friable: Description of an ACM that, when dry, may be crumbled, pulverized, or reduced to powder by hand pressure. The term friable also applies to non-friable material that will intentionally become friable as a result of sanding, drilling, chipping, striking with an object (such as a wrecking ball), or demolition.

O. Friable methods: Removal methods that will result in the generation of powder, dust, chunks, and small pieces of the material being removed.

P. Glovebag: A manufactured device consisting of a plastic bag (constructed of a minimum of 6-mil thickness transparent plastic) with two attached inward projecting long-sleeved rubber gloves, one attached inward projecting water wand sleeve, an attached internal tool pouch, and an attached labeled receptacle for asbestos waste.

The glovebag is constructed and installed in such a manner that it surrounds the object or area in which ACMs will be disturbed and that it contains the fibers that are released during the removal process. The glovebag may be used to remove asbestos containing TSI from ducts, pipes, valves, joints, elbows, and other non-planar surfaces and cannot exceed 60” X 60”.

Q. Government’s environmental consultant (GEC): The professional individual who is employed either directly or indirectly by GSA, but not through the general contractor or their subcontractors to provide third party observations, project coordination, project air sampling, including clearance sampling, and oversight on behalf of GSA on every aspect of an asbestos abatement project.

R. High efficiency particulate air (HEPA) filter: High efficiency particulate air filters capable of retaining 99.97 percent of particles (including fibers) that are greater than

0.3 micrometers in mass median aerodynamic equivalent diameter.

S. Materials containing less than 1.0% asbestos: A material considered to contain trace levels of asbestos (less than 1.0% asbestos).

T. Mini enclosure: A framed structure covered or wrapped with 6-mil plastic walls and floor fully enclosing the work and the workers that may be placed under negative air pressure with a curtained doorway.

U. Miscellaneous material: An interior building material on structural components, structural members, or fixtures, such as floor and ceiling tiles, and does not include surfacing materials or TSI.

V. Non-friable: Description of an ACM that, when dry, may not be crumbled, pulverized, or reduced to powder by hand pressure.

W. Non-friable methods: A removal method that does not cause non-friable ACM to crumble, pulverize, or reduce to powder

X. Outside air: Airborne fiber concentrations outside of the regulated area in adjacent spaces in the building.

Y. Pre-alteration assessment: PBS required assessment to determine if ACM will likely be disturbed during a project. The assessment includes destructive sampling and verification sampling as necessary to make the determination.

Z. Regulated area: The space in the building established by the contractor to demarcate areas where class I, class II, and class III asbestos work will be conducted. It also means any area where debris and waste from such asbestos work may accumulate, and any area within which airborne fiber concentrations either exceed or there is a reasonable possibility that they may exceed the permissible exposure limit (PEL).

AA. Remote decontamination enclosure: A component of the regulated area that is not contiguous to the area where the work is occurring in which the workers decontaminate. In order to use a remote decontamination enclosure, each worker shall, prior to leaving the area where the work is occurring, don a second protective cover all suit and booties prior to proceeding to the remote decontamination enclosure.

BB. Renovation: Activities altering a facility or one or more facility components in any way, including the stripping or removal of ACM from a building. Operations in which load-supporting structural members are wrecked or taken out are demolitions.

CC. Separation barrier: Rigid barrier constructed of at a minimum ½ inch thickness plywood, gypsum board, or similar sheathing material with sufficient framing to support the barrier. It also means existing rigid barriers, such as a locked door, that prevents the possible access by building occupants into areas where project activities will occur.

DD. Single shift abatement: Abatement projects where the asbestos is removed from the regulated area in one work shift.

EE. Surfacing material: Interior building materials that are sprayed, troweled-on, or otherwise applied to surfaces (such as acoustical plaster on ceilings and fireproofing on structural members).

FF. Thermal systems insulation (TSI): Interior and exterior insulation material applied to pipes, fittings, boilers, breechings, vessels, tanks, ducts, or other structural or mechanical components, to prevent heat gain or loss, reduce noise, control condensation, or any other purpose including decorative.

1.05 Duties of the GEC (for informational purposes only, GSA will issue a separate contract for this work)

A. Prior to start of work, complete a pre-alteration assessment, testing, and design services.

B. During the work, the GEC duties will include:

1. Enter the regulated area at least every 2 hours to inspect the work procedures and regulated area integrity.

2. Maintain a daily log to record the day’s events, problems, corrective actions.

3. Collect air samples inside and outside the regulated area.

4. Immediately inform the GSA if airborne asbestos concentrations outside the regulated area exceed 0.01 f/cc or the background sample levels, whichever is higher and the work inside the regulated area shall be stopped. The work may restart when the source of fiber release has been identified and corrected.

Contractor shall be responsible for cleaning and decontaminating the outside area if caused by the asbestos abatement activities.

5. Observe/document smoke testing of the containment by the contractor.

C. Upon completion of the work, the GEC shall:

1. Inspect for visible debris. Contractor shall be required to re-clean the area or portions of areas until no visible debris remains and the regulated area is dry at no additional cost to the government.

2. Perform final air clearance testing in accordance with Section 3.05.

3. Prepare and submit an asbestos abatement summary report within 60 working days of clearance testing.

D. Third party observations shall be performed by the GEC. The GEC shall not be a subcontractor of the contractor. The GEC shall provide third party observations, project coordination, and oversight on behalf of GSA on every aspect of the asbestos abatement project.

PART 2 SUBMITTALS

2.01 Pre-Abatement Submittals

A. Qualifications

1. Submit a copy of current asbestos abatement contractor license or certification.

2. Submit a copy of the asbestos project supervisor license.

B. Asbestos work plan

Submit a written asbestos abatement work plan and supporting drawings with work plan items illustrated to the GSA regional environmental office and the GEC for review and approval at least 30 calendar days prior to the start of the work.

Include sufficient detail to demonstrate and indicate the following:

1. Location, type, and quantity of ACM impacted.

2. Areas of the building which will be tenant-occupied or occupied by other contractors while work takes place.

3. Locations of critical seals.

4. Delineation of each regulated area.

5. Location for each mini enclosure (if applicable).

6. Location of decontamination enclosure systems.

7. Location for remote decontamination enclosure (if applicable).

8. Location of all negative air HEPA filtered devices and the path of the exhaust ducts from the machine to the out of doors.

9. Route of workers from out of doors to the regulated areas and break areas

(subject to approval by the GSA property management office).

10. Route of containerized asbestos waste from the regulated area to the asbestos waste dumpster or prepared vehicle (subject to approval by the GSA property management office).

11. Location of asbestos waste dumpster or prepared vehicle (subject to approval by the GSA property management office).

12. Frequency, proposed hours, and method of hauling waste from the regulated area to the asbestos waste dumpster or prepared vehicle.

13. A narrative sequencing plan with a detailed schedule clearly indicating the various aspects, phases, and sequences of the work.

14. Completed GSA notification form (refer to Exhibit 1).

15. Variance request(s) in accordance with Section 2.04 (if applicable).

16. Safety data sheets (SDSs) for encapsulants, solvents, adhesives, and any other chemicals that are proposed to be used on the project.

2.02 During-Abatement Submittals

Submit the following documents to the GEC as noted:

A. Results of all personal or area air monitoring conducted by the contractor within 72 hours of collection and within 24 hours of analysis for all workers to see.

B. Continuous strip chart record documenting pressure-differential for each regulated area within 24 hours after the recording was made.

C. Job progress reports detailing the abatement/mitigation activities including a review of progress with respect to previously established schedules, problems and actions taken, injury reports, and equipment breakdowns, as applicable.

D. Logs documenting filter changes on respirators, HEPA vacuums, negative pressure ventilation units, and other engineering controls.

E. Daily sign-in logs at the conclusion of each day.

F. Disposal receipts and completed waste shipment records on an on-going basis.

2.03 Post-Abatement Submittals

Submit the following documents upon completion of abatement work:

A. Verification of asbestos abatement. Certify in a statement the locations and the quantities of all ACM that was actually removed during the project and compare that information with the project’s scope of work.

B. Copies of all transport manifests, trip tickets, and disposal receipts for all asbestos waste materials removed from the regulated area during the abatement process.

2.04 Variances

Any deviation from the work practices and procedures described in this specification section require an approved variance. Written variance requests must be submitted along with the asbestos work plan and include a detailed description of the procedure(s) to be used in lieu of the specification requirements and an explanation of why the variance is warranted. Asbestos work plans and variances must be approved by the GSA regional environmental office prior to the start of any work.

PART 3 EXECUTION

3.01 Prohibited Activities

A. Dry removal or dry sweeping.

B. Use of compressed air for cleaning.

C. Use of high speed power tools not equipped with a HEPA-filtered local exhaust system.

D. Eating, drinking, smoking, chewing tobacco/gum, or applying cosmetics in the regulated area.

E. Use of solvents that do not have a high flash point (>200°F) and low VOCs.

F. Use of solvents not compatible with new flooring or coatings to be installed.

3.02 Regulated Area Preparation

A. General preparation:

The following tasks are to be performed in the order that they appear.

1. Establish the regulated area and post warning signs at the entrances in accordance with OSHA 29 CFR 1926.1101(k)(7).

2. Install separation barriers to prevent unauthorized entry.

a. The separation barriers are intended to prevent the possible access by building occupants into regulated areas where project activities will occur.

b. The separation barriers shall be constructed of ½ inch minimum thickness plywood, gypsum board, or similar sheathing material with sufficient framing to support the barrier.

c. The separation barriers shall extend from the floor to within 6 inches of the ceiling. Access through the secured separation barrier shall be through a lockable door installed in the barrier.

d. A locked door that prevents the possible access by building occupants into the regulated area may serve as a separation barrier.

B. Interior preparation:

The following tasks are to be performed in the order that they appear.

1. Shut down and lock-out / tag-out power to the regulated area at the circuit breaker.

2. Provide temporary power and lighting to the regulated area through ground-fault circuit interrupters at the source.

3. Isolate ventilation.

a. Shut down and isolate heating, cooling, and ventilation air systems, supply, return, and pass-through system components, to prevent dispersal of dust and fibers from the regulated area into other areas of the building and to avoid establishing positive pressure in the regulated area.

b. Block-off all ductwork and plenum openings to the regulated area with sheet metal, dry wall, or other compatible rigid materials.

4. Install critical seals.

a. Seal off all openings to windows, corridors, doorways, skylights, ducts, grills, diffuser and any other penetrations of the regulated areas, with 6-mil thick plastic or equivalent sheeting sealed with tape.

b. Seal system components that pass through the regulated areas, such as ductwork originating from outside the regulated areas that pass through and service an area outside of the regulated area with 2 ply, 6-mil thick plastic.

5. Establish and maintain negative pressure relative to all adjacent areas.

a. Install and operate negative pressure ventilation equipment to provide a minimum of 4 air changes in the regulated area every hour. Submit verification that the intended machines will be sufficient and maintain on site 1 spare filtration machine for each 5 machines (or fraction thereof) that are planned to be used on the project.

b. Make all openings into the regulated area which accommodate these units airtight with tape and or/caulking.

c. Exhaust the negative pressure ventilation units to the outside of the building away from occupied areas and at a sufficient distance from all building intakes to prevent the exhaust from entering the building's ventilation systems.

d. Exhaust ducts within regulated areas shall be constructed with a minimum of 6-mil thick plastic sheeting or equivalent.

e. Exhaust ducts in occupied areas and outside regulated areas shall include a rigid barrier to protect the duct from damage or tampering and meet National Fire Protection Association (NFPA) requirements to ensure proper egress.

f. The system shall be visually inspected daily by the abatement contractor.

Damages and defects shall be repaired immediately as necessary.

g. Maintain a negative air pressure differential of at least -0.02 inches of water column, relative to ambient outside ambient air pressure at all times throughout the regulated area to ensure air inside of the regulated area does not filter back and migrate to outside the regulated area.

h. Provide and maintain instrumentation, such as a manometer (with a readable tape) for measuring the pressure differential for each regulated area.

i. Operate the negative air pressure system continuously once the contained area inside of the regulated area is established, continuously, 24 hours a day, until final air clearance criteria has been met.

6. Install worker decontamination enclosure (WDE).

a. Construct and maintain at least 1 WDE for each regulated area.

b. WDE shall be constructed according to the following:

i. Frame the WDE out of metal, wood, or plastic supports as appropriate or utilize a packaged unit.

ii. Cover each WDE chamber with 6-mil thick opaque plastic sheeting.

iii. Construct the WDE with the following (from “dirty” side to “clean” side):

curtained doorway, equipment room, curtained doorway, airlock, curtained doorway, shower room, curtained doorway, airlock, curtained doorway, clean room, and curtained doorway.

iv. Construct each air lock in the WDE a minimum of 3 feet.

v. Construct the clean room to accommodate the clothes and equipment of the work crew. Access to the regulated area shall be at the clean room from outside of the abatement work area.

vi. Construct the shower room with one or more showers to accommodate the workers. Each shower head shall be supplied with hot and cold water adjustable at the tap. Construct the shower enclosure(s) to ensure against leakage of any kind. Supply soap, shampoo, and clean towels at each shower and drain, collect, and filter the drain water through a system with at least 5.0-micron particle size collection capability.

Discharge the filtered wastewater into a sanitary sewer.

vii. Maintain the WDE in a well-lit, clean, and hygienically acceptable state at all times.

7. A remote decontamination enclosure (RDE) may be used only when the regulated area is limited to the removal of non-friable ACM using methods that will not cause the material to become friable and during glovebag removal. RDE shall be constructed according to the following:

a. Frame the RDE out of metal, wood, or plastic supports as appropriate or utilize a packaged unit.

b. Cover each RDE frame with 6-mil thick opaque plastic sheeting installed over a framework.

c. Construct the shower room with 1 or more showers to accommodate the workers. Each shower head shall be supplied with hot and cold water adjustable at the tap. Construct the shower enclosure(s) to ensure against leakage of any kind. Supply soap, shampoo, and clean towels at each shower and drain, collect, and filter the drain water through a system with at least 5.0-micron particle size collection capability. Discharge the filtered wastewater into a sanitary sewer.

d. Utilize a lockable door to permit access into the RDE from outside of the regulated area.

e. Maintain the RDE in a well-lit, clean, and hygienically acceptable state at all times.

f. Access to the contained area shall be through an air lock with a curtained doorway in the RDE.

g. The following procedures shall be used with a RDE:

i. Don respiratory protection and two pairs of protective disposable coveralls (double-suiting) prior to entering the contained regulated area.

ii. After completing work or upon leaving the contained regulated area, remove gross debris by vacuuming with a HEPA filtered vacuum or wet methods, enter the airlock, remove the outer suit and place it in a labeled waste container in the air lock.

iii. Still wearing the inner suit and respiratory protection, proceed to another contained regulated area and don a second suit and enter the area or, proceed to the RDE System.

iv. Following the work, clean the RDE in a manner identical to and consistent with the cleaning and settling periods that shall be utilized in all other regulated areas. During final air clearance sampling a minimum of 1 clearance air sample from each RDE shall be collected by the GEC.

8. Install equipment decontamination enclosure (EDE).

a. Construct and maintain an EDE for each regulated area.

b. Construct the EDE with the following: curtained doorway, washroom, curtained doorway, airlock, curtained doorway, holding area, curtained doorway.

c. Frame or support each EDE chamber out of metal, wood, or plastic as appropriate or utilize a portable packaged unit.

d. Cover each EDE chamber with 6-mil thick opaque plastic sheeting or equivalent strength sheeting installed over frame or supports.

e. Utilize a lockable door to permit access into the holding area from outside of the regulated area.

f. Maintain the EDE in a well-lit, clean, and hygienically acceptable state at all times.

C. Regulated area maintenance and monitoring:

1. Enclosure systems and barriers shall be inspected by the contractor’s competent person and the GEC at least 4 times per work shift and the inspections shall be entered into the contractor’s daily log.

2. Following completion of the work specified in Section 3.02, B, the contractor shall allow for hang time to ensure that the barriers and the plastic sheeting will remain intact and secured before beginning the disturbance of ACM. The hang time duration shall be as follows:

a. Gross removal/full containment work (per Section 3.03) shall require a minimum of 12 hours.

3. Special Procedures (per Section 3.04) shall require a minimum of 1 hour. Repair damage and defects in the enclosure system upon discovery.

4. Stop work if, at any time during the abatement activities after barriers have been erected, visible emissions are observed outside of the regulated area or damage to the barriers is observed. Perform repairs to the barrier and clean up residual debris using HEPA vacuuming and wet wiping procedures prior to resuming abatement activities.

5. Maintain airborne fiber concentrations in building spaces adjacent to the contained regulated area equal or less than 0.01 f/cc or background levels, whichever is greater, as determined by PCM. Stop work immediately in the regulated area if the airborne fiber concentrations in building spaces adjacent to the regulated area exceed this amount. Implement remedial action, such as wet cleaning, to reduce the airborne fiber concentrations inside of the regulated area.

6. Clean spaces outside and adjacent to the regulated area where airborne fiber concentrations exceeded 0.01 f/cc or background levels, whichever is greater.

D. Building Exterior Preparation - Reserved

E. Do not disturb ACM during the regulated area preparation phase.

F. Maintain emergency and fire exits per NFPA requirements.

G. Commencement of work shall not occur until:

1. Approved submittals that are required by Part 2 of this specification, including pre-abatement submittals, notifications, variance requests, postings, and copies of permits are provided and have been approved by the GSA regional environmental office and the GEC.

2. All equipment for abatement, cleanup, and disposal is onsite.

3. Documentation that all workers current licenses, refresher training, and fit tests have been provided.

4. Approval for building security, project schedule and work hours, route of workers and waste through the building, and placement of waste dumpster or vehicle has been approved by the GSA property management office.

5. Regulated area enclosures have been constructed and tested by the GEC.

6. Negative pressure ventilation systems are functioning adequately.

H. Building-specific guidance - Reserved

3.03 Gross Removal and Full Containment Abatement Work Procedures

Prepare regulated areas in accordance with Section 3.02.

A. Cover carpet that is to remain in the regulated area with 2 layers of 6-mil thick plastic and 1 sheet of fire rated 7/16” thick plywood or equivalent.

B. Cover the floors, walls, and all immovable objects in the proposed regulated areas with plastic sheeting sealed with duct tape. Use a minimum of 2 layers of 6-mil thick plastic or equivalent on the floors and 2 layers of 4-mil thick plastic sheeting or equivalent on walls. Cover floors first so that plastic extends at least 12 inches up the walls, then cover walls with plastic sheeting to the floor level, thus overlapping the floor plastic by a minimum of 12 inches. Stagger seams. Plastic on the floors is not required when the project includes removal of the flooring and or flooring adhesive mastic.

C. Cover bottom side of ceiling with 6-mil thick plastic if open plenum is present above a laid in ceiling system.

D. Maintain emergency and fire exits from the regulated area. Spray paint the wall plastic with red paint using arrows to indicate the direction to the exits from the regulated area. After the wall plastic is removed, paper signs with red arrows shall be affixed to each interior wall showing the direction to the regulated area exits.

E. Isolate ventilation in accordance with 3.02.B.3. a & b.

F. Remove ACM according to the following procedures:

1. Wet ACM using equipment capable of providing a fine mist in order to reduce airborne fiber concentrations when the material is disturbed. Keep material wet until it is containerized.

2. Place wetted asbestos into double 6-mil thick plastic bags tied in a gooseneck fashion where the waste was generated.

3. Wrap large and intact items, such as insulated sections of pipe or whole window assemblies in 2 layers of plastic sheeting and haul to the waste dumpster or vehicle.

G. Place asbestos waste containing sharp edged components such as screws, metal lathe, security mesh or similar materials, in metal or fiber drums, lined with 2 layers of plastic and hauled to the waste dumpster or designated waste transport vehicle.

H. Asbestos waste material shall be bagged or containerized as it is removed.

I. Regulated area waste shall be kept wet until visible material is cleaned up.

J. Dispose of asbestos waste in accordance with Section 3.06.

K. Cleaning and Decontamination:

1. All waste must be removed from the regulated area.

2. First Cleaning. Wet clean all surfaces where asbestos was removed from and where asbestos debris may have settled.

3. First Settle Period. Allow airborne debris to settle for a minimum of 12 hours.

4. Second Cleaning. When the regulated area is dry, remove the first layer of plastic, leaving only 1 layer on the walls and 1 or 2 layers on the floor and wet clean all surfaces where asbestos was removed from and where asbestos debris may have settled.

5. Second Settle Period. Allow airborne debris to settle for a minimum of 12 hours.

6. Third Cleaning. When the regulated area is dry, remove the layers of wall and floor plastic leaving only the critical barriers in place and wet clean all surfaces where asbestos was removed from and where asbestos debris may have settled.

7. Third Settle Period. Allow airborne debris to settle for a minimum of 12 hours.

8. If visible accumulations of asbestos debris are discovered following the third settling period and prior to commencing air clearance sampling, the contractor shall repeat the third cleaning at no additional cost to the Government and observe an additional 12 hour settle period. If no visible accumulations are discovered, final air clearance may commence.

9. Visual inspections and final air clearance will be performed by the GEC.

3.04 Special Abatement Work Procedures

A. Glovebag removal procedures Glovebag removal procedures may be used for repair or removal of asbestos pipe and pipe fitting, duct, or other similar materials using commercially available glovebags of 6-mil thick clear plastic.

1. Establish the regulated area and post warning signs at the entrances in accordance with OSHA 29 CFR 1926.1101(k)(7).

2. Isolate ventilation for abatement work involving 25 linear feet or 10 square feet of asbestos or more in this order:

a. Shut down and isolate heating, cooling, and ventilation air systems, supply, return, and pass-through system components, to prevent dispersal of dust and fibers from the regulated area into other areas of the building and to avoid establishing positive pressure in the regulated area.

b. If necessary, block-off all ductwork and plenum openings to the regulated area with sheet metal, dry wall, or other compatible rigid materials.

3. Adhere to OSHA requirements for <25 LF/ 10 square feet.

4. Remote WDE may be utilized with glovebag removal.

5. Glovebag removal shall require mini-enclosure constructed of 6-mil thick clear polyethylene or equivalent with appropriate framing. Include a floor and walls and an airlock (with two curtained doorways) for each mini-enclosure. Mini-enclosure is not required for projects requiring a single glovebag.

6. Glovebag removal may commence after the GEC has inspected and approved each mini enclosure.

7. Place all necessary tools and materials for glovebag removal and cleanup into the mini-enclosure before the glovebag work begins.

8. A minimum of 2 individuals that are licensed in the State that the work is taking place must be working on each glovebag.

9. Wear full body coveralls and appropriate respirator protection during the work.

Test the integrity of each glovebag seal using a smoke tube. Inject the contents of a smoke tube into the water wand port of the glovebag and gently squeeze to check for leakage. Seal all leakage with duct tape.

10. Wet the material inside of the glovebag with amended water.

11. Following the removal or the repair of the insulation material, the unprotected portion of the pipe shall be scraped with a wire brush. Spray the newly exposed cut ends of insulation, tools, and the interior of the glovebag with amended water.

12. Coat the newly cut insulation ends with a bridging encapsulant prior to removing the glovebag.

13. Gather the tools and supplies in 1 of the glovebag hands and pull through, thus turning the glove inside out. Twist the inverted glove, tape the glove airtight and sever it mid-seal forming a glovebag and a taped “pouch” with tools and supplies that can be placed inside of the next planned glovebag.

14. Evacuate the air from inside the glovebag using a HEPA filtered vacuum.

15. With the glovebag collapsed, and the removed material saturated with amended water and sitting on the bottom of the glovebag, twist the bag, as close to the pipe as possible, several times and seal the twist with duct tape.

16. Slip a 6-mil thick plastic waste bag around the glovebag while it is still attached to the pipe. Carefully detach the glovebag and secure in a gooseneck fashion.

17. Bag asbestos waste in 2, 6-mil thick plastic bags and place inside of a coverable cart (gondola). Haul waste from the regulated area immediately to the outside of the building to the designated waste truck or dumpster.

18. Perform a minimum of 1 clean up inside of each mini enclosure followed by a 60-minute waiting period to allow the area to dry prior to the GEC performing visual clearance and conducting final air clearance sampling.

B. Non-friable removal procedures Non-friable removal procedures may be used for removal of asbestos floor tile, flooring mastic, and whole/intact components.

1. Floor tile and flooring mastic:

a. Establish the regulated area and post warning signs at the entrances in accordance with OSHA 29 CFR 1926.1101(k)(7).

b. Isolate heating, cooling, and ventilating air systems for work involving more than 10 square feet. Isolate ventilation in this order:

1) Shut down and isolate heating, cooling, and ventilation air systems, supply, return, and pass-through system components, to prevent dispersal of dust and fibers from the regulated area into other areas of the building and to avoid establishing positive pressure in the regulated area.

2) Block-off all ductwork and plenum openings to the regulated area with sheet metal, dry wall, or other compatible rigid materials.

c. Remove floor tiles in whole pieces without breaking using dry ice, heat guns, or infrared tile removal machines, which act to loosen the underlying adhesive mastic.

d. Apply approved chemical stripper solvent for removal of asbestos containing mastic. Use paper towels, newsprint, rags, or specifically designed absorbent products to absorb spent solvent.

e. Dispose of flooring and debris as asbestos waste in accordance with Section 3.06.

f. HEPA vacuum the regulated area thoroughly following completion of the removal.

g. Neutralize any mastic remover and ensure flooring is prepared for flooring installation.

2. Whole component/intact removal items:

a. Establish the regulated area and post warning signs at the entrances in accordance with OSHA 29 CFR 1926.1101(k)(7).

b. Unbolt, unscrew, and/or mechanically disconnect ACM without damaging and wrap and seal the component in plastic and duct tape for disposal.

c. Clean up all incidental debris utilizing HEPA vacuum and wet cleaning methods.

C. Operations and maintenance (O&M) procedures O&M work procedures may be used for activities that disturb 3 square feet or 3 linear feet or less of ACM for the entire duration of the project. Examples of these activities or projects include, drilling, coring, or anchoring into ACM or materials assumed to contain asbestos.

1. Post signs so that the regulated area cannot be entered from any direction without observing a sign.

2. Perform all work in accordance with OSHA 29 CFR 1926.1101 and 1910.1001.

3. Isolate the regulated area from areas to remain occupied.

4. Install critical barriers of 6-mil thick plastic sheeting sealed with duct tape at all openings in the regulated area. Install splash guards as necessary to protect surfaces during removal of floor mastic.

5. Plastic sheeting/drop cloths or other means of dust control shall be placed to protect horizontal surfaces below targeted areas of disturbance.

6. Workers shall don HEPA filtered respirators and protective clothing until representative monitoring confirms operations do not create exposures to airborne fibers in excess of the PEL established by OSHA (0.1 f/cc).

7. Any dust generated shall be immediately cleaned utilizing HEPA vacuum and wet cleaning methods.

8. Package all waste material(s) in a clean plastic bag, seal with tape and dispose as asbestos debris in accordance with Section 3.06.

9. Airborne fiber concentrations in the regulated area shall not exceed 0.01 f/cc, as determined by PCM. Work shall immediately cease in the regulated area if the airborne fiber concentrations in the regulated area exceed this amount. The contractor shall be responsible for cleaning spaces outside and adjacent to the regulated area where airborne fiber concentrations exceeded 0.01 f/cc or background levels, whichever is greater.

10. O&M work procedures shall be considered complete following an acceptable visual evaluation by the GEC and/or when all air sample results are equal or less than 0.01 f/cc.

D. Single shift abatement procedures Single shift abatement work procedures shall only be implemented when the asbestos can be removed from the regulated area in 1 work shift and are limited to the removal of pipe, pipe fitting(s), or duct insulation within a mini enclosure and class II abatement work within 1 regulated area. Removal of fireproofing and surfacing materials shall not be permitted. Regulated area work preparation and clearance procedures are not included in the time constraints of a single shift.

1. Establish the regulated area and post warning signs at the entrances in accordance with OSHA 29 CFR 1926.1101(k)(7).

2. Shut down and isolate heating, cooling, and ventilating air systems for work involving more than 25 linear feet and/or 10 square feet. Isolate ventilation in the following order:

a. Shut down and isolate heating, cooling, and ventilation air systems, supply, return, and pass-through system components, to prevent dispersal of dust and fibers from the regulated area into other areas of the building and to avoid establishing positive pressure in the regulated area.

b. If necessary, block-off all ductwork and plenum openings to the regulated area with sheet metal, dry wall, or other compatible rigid materials.

3. Removal may commence after the GEC has inspected and approved the regulated area

4. Establish negative pressure. Exhaust the negative pressure ventilation units to the outside of the building away from occupied areas.

5. Perform a minimum of 1 clean up followed by a 60 minute waiting period to allow the area to dry prior to the GEC performing visual clearance and conducting final air clearance sampling.

3.05 Final Clearance Air Sampling and Analysis

A. Final air clearance sampling shall be performed by the GEC. Use the following procedures for clearance in areas other than mini-enclosures:

1. Notify the GSA project manager or the GEC, that an area is ready for clearance air sampling.

2. If the results of every clearance sample analyzed by PCM are less than 0.01 f/cc, then clearance criteria has been met. If the results of every clearance sample are not less than 0.01 f/cc, then the clearance event fails and the contractor shall proceed to repeat the cleanup and settling period sequence starting at the third cleaning step at no cost to the Government.

3. For clearance samples that will be analyzed by TEM, the area will be considered clean if:

a. The average of a set of 5 inside samples is less than 70 structures per millimeter squared; or

b. The concentration of airborne asbestos fibers inside the work area is not significantly different from the concentration of airborne asbestos fibers outside of the work area as determined by the student “T-test”.

3.06 Waste Disposal and Equipment Load-Out

A. Sufficiently wet asbestos containing waste so that it is saturated until it is transported to the landfill.

B. Containerize asbestos containing waste in the immediate area and as soon as possible as it is removed.

C. Decontaminate the exterior surfaces of the containerized waste and place in the holding area of the EDE.

D. Wash containerized waste in the EDE. Place the containerized waste into a lockable dumpster or vehicle if the EDE exits directly to outside the building. Place the containerized waste into a rubber hand cart or gondola that completely covers the waste if the EDE does not exit directly to outside the building. Keep the cart or gondola covered until a worker has moved the cart into a designated waste storage area.

E. Use dumpsters or enclosed trucks for storage and transportation of asbestos containing waste that are constructed of metal and have metal doors and metal tops that can be locked to prevent vandalism, wind dispersion, or other disturbances to the containerized waste.

F. Seal, label, and transport containerized waste directly to a State permitted treatment storage and disposal facility or an EPA approved landfill and not to an intermediate destination such as the contractor’s warehouse. Do not commingle waste generated during this project with any other waste.

G. Submit dump receipts, waste transfer forms, trip tickets, and/or other transportation documentation to the Project Manager.

3.07 Materials Containing Less than 1% Asbestos

For materials containing less than 1.0% asbestos, GSA is required to inform the contractor of the condition. Perform all work in accordance with OSHA 29 CFR

1926.1101 and 1910.1001. Prohibit the following activities:

A. High-speed abrasive disc saws that are not equipped with point of cut ventilators or enclosures with HEPA filtered exhaust air.

B. Compressed air used to remove asbestos, or materials containing asbestos, unless the compressed air is used in conjunction with an enclosed ventilation system designed to capture the dust cloud created by the compressed air.

C. Dry sweeping, shoveling, or other dry cleanup of dust and debris containing ACM and PACM.

D. Dropping from an extended height.

E. Employee rotation as a means of reducing employee exposure to asbestos.

EXHIBIT 1

Notification Form Asbestos Abatement

General Services Administration

Region 5

1.0 GENERAL INFORMATION (provide names and phone numbers):

Building Number/Name: ____________________________________________ Project Name: ____________________________________________________ GSA Project Manager: _____________________________________________ GSA Property Manager: ____________________________________________ Government Environmental Consultant: ________________________________ General Contractor: ________________________________________________

2.0 ASBESTOS ABATEMENT CONTRACTOR INFORMATION:

Company Name: ___________________________________________________ Name of Contact and Phone Number: ___________________________________

3.0 PROVIDE A DESCRIPTION OF THE WORK, LOCATION, AND QUANTITIES OF THE

MATERIAL THAT WILL BE REMOVED (include areas or access that will be restricted):

4.0 SCHEDULED DATES:

Start Date:____________________ Completion Date: ________________ Number of Shifts: _________________ Scheduled Working Hours: ________________________________