2% to 4% Chrysotile

<1% Chrysotile

2% Chrysotile

The following is a synopsis of the requirements that must be followed in the State of Colorado if greater than the regulated amounts of asbestos-containing building materials are removed or disturbed within a building (i.e., greater than the Trigger Levels).

The amount of asbestos-containing material which requires removal in compliance with the CDPHEs Regulation #8 is as follows;

• If 50 linear feet on pipes, 32 square feet on other surfaces, or the volume equivalent of a 55-gallon drum of asbestos containing material (>1%) will be removed from a single-family residential dwelling (i.e., homes, apartments, condominiums, duplexes, etc.,); or

• If 260 linear feet on pipes, 160 square feet on other surfaces, or the volume equivalent of a 55-gallon drum of asbestos containing material (>1%) will be removed from all areas other than single-family residential dwellings (i.e., commercial properties).

PLEASE NOTE: The following is meant to be a synopsis and overview of the general permitting and containment requirements under Regulation #8 and is by no means intended to be comprehensive. This document does not discuss the required removal methods, work practices, or engineering controls. To gain an understanding of the comprehensive removal requirements specific to your property, please consult a certified General Abatement Contractor.

IF THE MATERIAL IS FRIABLE (i.e., the material, when dry, MAY BE crumbled, pulverized, or reduced to powder by hand pressure) the following subsections must be complied with:

• II. CERTIFICATION REQUIREMENTS
•  II.A. GENERAL REQUIREMENTS 
• II.A.1. Persons required to be certified as a General Abatement Contractor, Building Inspector, Management Planner, Project Designer, Abatement Worker, Abatement Supervisor or Air Monitoring Specialist shall obtain the appropriate certification from the Division in accordance with this section II.
• III.C. PROJECT DESIGN 
• III.C.1. Prior to the start of any asbestos abatement in an area of public access of a non-school building, in which the amount of asbestos-containing material to be abated exceeds 1,000 linear feet on pipes, or 3,000 square feet on other surfaces, a written project design shall be developed by a Project Designer certified under these regulations.
• III.G. PERMITS 
• III.G.1. Permit Applications 
• III.G.1.a. No person shall commence an abatement project in which the amount of friable asbestos-containing material exceeds the trigger levels in an area of public access without first obtaining a permit from the Division. Only the GAC in whose name the permit is issued may conduct the abatement project.
• III.I. CRITICAL BARRIER INSTALLATION 
• All openings between the work area and clean areas including, but not limited to, windows, doorways, elevator openings, corridor entrances, drains, ducts, grills, grates, diffusers and skylights shall be sealed with a minimum of one layer of 6-mil polyethylene sheeting.
• III.J. AIR CLEANING AND NEGATIVE PRESSURE REQUIREMENTS 
• III.J.1. Negative Air Machines and HEPA Filters 
• III.J.1.a. Negative pressure air filtration units shall be operated continuously from the time of barrier construction through the time that acceptable final clearance air monitoring results are obtained in accordance with subsection III.P (Clearing Abatement Projects).
• III.J.1.b. The GAC who is required to use air cleaning shall properly install, use, operate, and maintain all air-cleaning equipment authorized by this subparagraph III.J (Air Cleaning and Negative Pressure Requirements).
• III.J.1.c. The GAC who is required to use air cleaning shall use a HEPA filter to clean the air.
• III.J.1.d. These units shall exhaust filtered air to the outside of the building when the length of exhaust duct required to do so does not overburden the negative air units. If air must be exhausted to the interior of the building, it must be done in accordance with subparagraph III.U.1.b. (During Abatement).
• III.K. DECONTAMINATION UNIT 
• III.K.1. Construction 
• A decontamination unit shall be constructed to provide employees with a facility to be used to decontaminate asbestos-exposed Workers and equipment before such Workers and equipment leave the work area. The decontamination unit shall consist of the following three stages, which shall be separated by staggered flaps or an equivalent system of barriers that will self-close should negative air pressure fail:
• III.L. PRE-CLEANING OF SURFACES 
• Pre-cleaning of surfaces contaminated with visible dust or debris shall be conducted prior to the commencement of any abatement project.
• III.M. COVERING FIXED OBJECTS 
• At a minimum, all fixed objects in the work area shall be covered with one (1) layer of six-(6) mil polyethylene sheeting, secured in place.
• III.N. CONTAINMENT COMPONENTS 
• Construction of the containment components may commence only after adequate negative pressure is established. Polyethylene sheeting shall be used in the construction of containment barriers in order to isolate the work area during abatement projects. Spray poly may be substituted for polyethylene sheeting.
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• III.N.1. Wall, Floor and Ceiling Polyethylene 
• Polyethylene sheeting shall be used in thicknesses and number of layers as specified in subparagraphs III.N.1.a., b., c., and d. below, and shall be used to seal all windows, doors, ventilation systems, and wall penetrations, and to cover ceilings, walls, and floors in the work area.
• III.N.1.a. Laying Polyethylene on Floors 
• At a minimum, floors shall be covered with sheeting consisting of two (2) layers of six-(6) mil polyethylene sheeting, unless spray poly is used. Floor sheeting shall extend up sidewalls at least twelve (12) inches and be sized to minimize seams. No seams shall be located along wall/floor joints.
• III.N.1.b. Hanging Polyethylene on Walls 
• At a minimum, walls shall be covered with sheeting that shall consist of two (2) layers of four (4) mil or thicker polyethylene, unless spray poly is used. It shall be installed to minimize seams and shall extend beyond wall/floor joints at least twelve (12) inches. No seams shall be located along wall/wall joints.
• III.N.1.c. Hanging Polyethylene Sheeting on Ceilings 
• If a work area has a ceiling that will not be abated as part of the abatement work, at a minimum, the ceiling shall be covered with sheeting that shall consist of one (1) layer of four (4) mil or thicker polyethylene, unless spray poly is used. It shall be installed to minimize seams and shall extend beyond wall/ceiling joints at least twelve (12) inches. No seams shall be located along wall/ceiling joints.
• III.N.3. Waste Load-out Area 
• All containments shall be constructed to include a waste load-out area. This area shall be separate from the decontamination unit and shall be used as a temporary storage area for bagged waste and as a port for transferring waste to the transport vehicle. All waste load-out areas must have a minimum of two separate chambers separated by air locks.
• III.P. CLEARING ABATEMENT PROJECTS
• The GAC, certified Air Monitoring Specialist, and the building owner shall ensure that all abatement projects are completed as described below.
• All air monitoring and final visual inspections-required under this regulation shall be performed by certified Air Monitoring Specialists independent of the GAC to avoid possible conflict of interest.
• III.P.1. Final Visual Inspection 
• At the conclusion of any abatement action and with only critical barriers still in place, a certified Air Monitoring Specialist, who is independent of the GAC, shall visually inspect each work area where such action was conducted, and behind the critical barriers, to determine whether all dust and debris has been removed. If any such dust or debris is found, the area shall be re-cleaned until no dust or debris is found. If a critical barrier is removed for cleaning purposes, the area behind the critical barrier shall be cleaned and the critical barrier immediately replaced.
• III.P.3. Final Clearance Air Monitoring and Sample Analyses 
• III.P.3.a. Sample Collection 
• III.P.3.a.(i). Once the area has passed a final visual inspection and no dust or debris has been found, the certified Air Monitoring Specialist shall collect air samples using aggressive sampling as described in 40 C.F.R. Part 763, Appendix A to Subpart E (EPA 1995), to monitor air for clearance after each abatement project; except that fans and leaf blowers shall not be directed toward any known friable ACM remaining in the work area.
• III.R. WASTE HANDLING 
• III.R.1. Disposal Containers Disposal containers shall be leak-tight and waterproof when sealed. Disposable bags shall be at least six-(6) mil polyethylene. III.R.2. Handling Waste Material Each person handling asbestos-containing waste material(ACWM) shall:
• III.R.2.a. Seal all asbestos-containing waste material in leak-tight containers while wet and label the containers in accordance with subsection
• III.R.2.b (Labeling), below. Appropriate containers and procedures shall be used to prevent all breakage, rupture or leakage during loading, shipping, transportation and storage of asbestos-containing waste material.
• III.R.2.d. Discharge no visible emissions during the collection, processing (including incineration), packaging, transportation, or deposition of any ACWM generated by the source.
• III.R.2.e. Dispose of ACWM in accordance with Colorado Department of Public and Environment Health, Hazardous Materials and Waste Management Division regulations.
• III.R.2.f. All asbestos-containing wastewater shall be filtered to five (5) micrometers prior to discharge and shall be discharged to a sanitary sewer.
• III.R.3. Follow the waste shipment procedures in accordance with the provisions of 40 C.F.R. Part 61 Section 150 (EPA 1995).

IF THE MATERIAL IS NON-FRIABLE (i.e., the material, when dry, CANNOT be crumbled, pulverized, or reduced to powder by hand pressure) the following subsections must be complied with:

• III.E. NOTIFICATIONS 
• III.E.1. Notices 
• Any person intending to either abate asbestos-containing materials in any amount greater than the trigger levels, or demolish a facility shall, on a form supplied by the Division, provide a written notice of the intent to conduct asbestos abatement or demolition.
• III.S.2. Asbestos Cement Products
• Transite roofing shingles, transite siding and other asbestos cement products that remain nonfriable during removal are subject to the requirements of subsection III.E (Notifications). The transite roofing shingles, transite siding, or other asbestos cement products must be removed in accordance with paragraph III.S.4 (Other Nonfriable Asbestos-Containing Materials), below. If the transite roofing shingles, siding, other asbestos cement products become friable during removal, then sections I. (Definitions), II. (Certification Requirements), and III. (Abatement, Renovation and Demolition Projects) apply.
• III.S.3. Asphaltic Materials
• Tar impregnated roofing felts, asphalt-roofing tiles, roofing asphalts, roofing mastics, and asphaltic pipeline coatings that are nonfriable and will remain nonfriable during abatement are exempt from this regulation.
• III.S.4. Other Nonfriable Asbestos-Containing Materials
• III.S.4.a. Adequately wet the surface areas of the nonfriable ACM to prevent dust emissions throughout the removal process.
• III.S.4.b. Remove the materials using hand removal methods or power tools that do not subject the material to cutting, grinding, sanding, bead blasting, sandblasting, or otherwise damage the material in such a way as to render it friable.
• III.S.4.C. Remove the material carefully with minimal breakage and disturbance.

III.S.4.d. If the nonfriable material is to be disposed of, then it must be transported to the landfill that will accept nonfriable ACM. The landfill must be contacted prior to disposal to ensure that the nonfriable ACM is transported and packaged in accordance with the landfill's specific policy or regulation. If the materials have been rendered friable, they must be disposed of as friable asbestos-containing waste materials pursuant to subsection III.R. (Waste Handling.)

The following is a synopsis of the requirements that must be followed, in all 50 states, if greater than the regulated amounts of asbestos-containing building materials are removed or disturbed within any type of building.

The amount of asbestos-containing material which requires removal in compliance with OSHAs Asbestos in Construction Standard (29 CFR 1926.1101) is as follows;

• If 10 square feet of Surfacing Material or Thermal Systems Insulation is removed or disturbed; or
• If 25 linear feet of Surfacing Material or Thermal Systems Insulation is removed or disturbed.

The definition of Surfacing Material and Thermal Systems Insulation in the OSHA Asbestos in Construction Standard (29 CFR 1926.1101) is as follows;

• Surfacing material means material that is sprayed, troweled-on or otherwise applied to surfaces (such as acoustical plaster on ceilings and fireproofing materials on structural members, or other materials on surfaces for acoustical, fireproofing, and other purposes).
• Thermal system insulation (TSI) means ACM applied to pipes, fittings, boilers, breeching, tanks, ducts or other structural components to prevent heat loss or gain.

PLEASE NOTE: The following is meant to be a synopsis and overview of the general containment requirements under the OSHA Asbestos in Construction Standard (29 CFR 1926.1101) and is by no means intended to be comprehensive. This document does not discuss the required removal methods, work practices, or engineering controls. To gain an understanding of the comprehensive removal requirements specific to your property, please consult a General Abatement Contractor.

CLASS I REMOVAL REQUIREMENTS

Class I asbestos work means activities involving the removal of TSI and surfacing Asbestos-Containing Material and Presumed Asbestos Containing Material. 

1926.1101(e) Regulated areas.

1926.1101(e)(1) All Class I, II and III asbestos work shall be conducted within regulated areas.

1926.1101(e)(2) Demarcation. The regulated area shall be demarcated in any manner that minimizes the number of persons within the area and protects persons outside the area from exposure to airborne asbestos. Where critical barriers or negative pressure enclosures are used, they may demarcate the regulated area. Signs shall be provided and displayed.

1926.1101(e)(3) Access. Access to regulated areas shall be limited to authorized persons and to persons authorized by the Act or regulations issued pursuant thereto.

1926.1101(e)(4) Respirators. All persons entering a regulated area where employees are required pursuant to paragraph (h)(1) of this section to wear respirators shall be supplied with a respirator selected in accordance with paragraph (h)(2) of this section.

1926.1101(e)(5) Prohibited activities. The employer shall ensure that employees do not eat, drink, smoke, chew tobacco or gum, or apply cosmetics in the regulated area.

1926.1101(e)(6) Competent Persons. The employer shall ensure that all asbestos work performed within regulated areas is supervised by a competent person, as defined in paragraph (b) of this section. The duties of the competent person are set out in paragraph (o) of this section.

1926.1101(g)(4) Class I Requirements. In addition to the provisions of paragraphs (g)(1) and (2) of this section, the following engineering controls and work practices and procedures shall be used.

1926.1101(g)(4)(i) All Class I work, including the installation and operation of the control system shall be supervised by a competent person as defined in paragraph (b) of this section;

1926.1101(g)(4)(ii) For all Class I jobs involving the removal of more than 25 linear or 10 square feet of thermal system insulation or surfacing material; while the Class I work is being performed, the employer shall use the following methods to ensure that airborne asbestos does not migrate from the regulated area:

1926.1101(g)(4)(ii)(A) Critical barriers shall be placed over all the openings to the regulated area, except where activities are performed outdoors;

1926.1101(g)(4)(iii) For all Class I jobs, HVAC systems shall be isolated in the regulated area by sealing with a double layer of 6 mil plastic or the equivalent;

1926.1101(g)(4)(iv) For all Class I jobs, impermeable dropcloths shall be placed on surfaces beneath all removal activity;

1926.1101(g)(4)(v) For all Class I jobs, all objects within the regulated area shall be covered with impermeable dropcloths or plastic sheeting which is secured by duct tape or an equivalent.

1926.1101(g)(4)(vi) For all Class I jobs where the employer cannot produce a negative exposure assessment, or where exposure monitoring shows that a PEL is exceeded, the employer shall ventilate the regulated area to move contaminated air away from the breathing zone of employees toward a HEPA filtration or collection device.

1926.1101(g)(5) Specific control methods for Class I work. In addition, Class I asbestos work shall be performed using one or more of the following control methods pursuant to the limitations stated below:

1926.1101(g)(5)(i) Negative Pressure Enclosure (NPE) systems: NPE systems may be used where the configuration of the work area does not make the erection of the enclosure infeasible, with the following specifications and work practices.

1926.1101(g)(5)(i)(A)(1) The negative pressure enclosure (NPE) may be of any configuration,

1926.1101(g)(5)(i)(A)(2) At least 4 air changes per hour shall be maintained in the NPE,

1926.1101(g)(5)(i)(A)(3) A minimum of -0.02 column inches of water pressure differential, relative to outside pressure, shall be maintained within the NPE as evidenced by manometric measurements,

1926.1101(g)(5)(i)(A)(4) The NPE shall be kept under negative pressure throughout the period of its use, and

1926.1101(g)(5)(i)(A)(5) Air movement shall be directed away from employees performing asbestos work within the enclosure, and toward a HEPA filtration or a collection device.

1926.1101(j) Hygiene facilities and practices for employees.

1926.1101(j)(1) Requirements for employees performing Class I asbestos jobs involving over 25 linear or 10 square feet of TSI or surfacing ACM and PACM.

1926.1101(j)(1)(i) Decontamination areas. the employer shall establish a decontamination area that is adjacent and connected to the regulated area for the decontamination of such employees. The decontamination area shall consist of an equipment room, shower area, and clean room in series. The employer shall ensure that employees enter and exit the regulated area through the decontamination area.

CLASS II REMOVAL REQUIREMENTS

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

1926.1101(e) Regulated areas.

1926.1101(e)(1) All Class I, II and III asbestos work shall be conducted within regulated areas.

1926.1101(e)(2) Demarcation. The regulated area shall be demarcated in any manner that minimizes the number of persons within the area and protects persons outside the area from exposure to airborne asbestos. Where critical barriers or negative pressure enclosures are used, they may demarcate the regulated area. Signs shall be provided and displayed.

1926.1101(e)(3) Access. Access to regulated areas shall be limited to authorized persons and to persons authorized by the Act or regulations issued pursuant thereto.

1926.1101(e)(4) Respirators. All persons entering a regulated area where employees are required pursuant to paragraph (h)(1) of this section to wear respirators shall be supplied with a respirator selected in accordance with paragraph (h)(2) of this section.

1926.1101(e)(5) Prohibited activities. The employer shall ensure that employees do not eat, drink, smoke, chew tobacco or gum, or apply cosmetics in the regulated area.

1926.1101(e)(6) Competent Persons. The employer shall ensure that all asbestos work performed within regulated areas is supervised by a competent person, as defined in paragraph (b) of this section. The duties of the competent person are set out in paragraph (o) of this section.

1926.1101(g)(7) Work Practices and Engineering Controls for Class II work.

1926.1101(g)(7)(i) All Class II work shall be supervised by a competent person as defined in paragraph (b) of this section.

1926.1101(g)(7)(ii) For all indoor Class II jobs, where the employer has not produced a negative exposure assessment or where during the job, changed conditions indicate there may be exposure above the PEL or where the employer does not remove the ACM in a substantially intact state, the employer shall use the following methods to ensure that airborne asbestos does not migrate from the regulated area;

1926.1101(g)(7)(ii)(A) Critical barriers shall be placed over all openings to the regulated area.

• 1926.1101(g)(7)(ii)(C) Impermeable drop cloths shall be placed on surfaces beneath all removal activity;