IL Asbestos Abatement cheat sheet

Class I work covers removal of surfacing material (ACM sprayed or troweled on), thermal system insulation, and asphalt/vinyl flooring; Class II covers non-friable ACM not otherwise categorized.

Class III is repair and removal of small amounts of ACM during a maintenance or custodial task; Class IV is maintenance and custodial activity where ACM may be disturbed but is not removed.

Friable ACM can be crumbled, pulverized, or reduced to powder by hand pressure; non-friable materials can become friable through sanding, grinding, cutting, or demolition.

A negative-pressure enclosure is maintained at approximately -0.02 inches of water column relative to adjacent areas; the decontamination unit has clean, shower, and equipment rooms in sequence.

Personal air samples are collected in the breathing zone outside the respirator; results are compared to the TWA PEL of 0.1 f/cc and the 30-minute excursion limit of 1.0 f/cc.

Half-mask air-purifying respirators with P100 or N100 filters are assigned protection factor 10; full-face APR is APF 50; supplied-air continuous-flow hood is APF 25; Type C full-facepiece is APF 1000.

Wet methods and amended water reduce fiber release; HEPA vacuums (99.97% at 0.3 micron) are used for cleanup, never ordinary shop vacuums.

Bagged ACM is placed in leak-tight containers, labeled per 29 CFR 1910.1001, and the label must not be removed except to relabel or dispose of the material.

Under NESHAP, a written notice of demolition or renovation is submitted to the delegated state or EPA regional office before work begins; the threshold is 260 linear feet, 160 square feet, or 35 cubic feet of RACM.

RACM includes friable asbestos-containing material and non-friable material that will be or has been crumbled, pulverized, or reduced to powder by the planned work.

A certified supervisor must be on site at all times during Class I and Class II work; 40-hour worker training plus annual refresher is required, and supervisor training is 40 hours.

Employer obligations include a written respiratory protection program, medical surveillance, exposure monitoring, regulated-area signage, and recordkeeping for at least 30 years for exposure records.

Regulated areas are demarcated and labeled with warning signs bearing the legend DANGER, ASBESTOS, and the required caution text; access is limited to authorized persons.

Notification, permit, and license requirements vary by state and local air authority; contractor licensing and worker certification are typically state-issued and must be current before bidding.

Waste shipment records and a chain of custody accompany transport; manifests and disposal receipts are retained to demonstrate proper disposal at a permitted landfill.

Bid estimates should account for containment construction, negative air machines, decontamination unit, PPE, air monitoring, and disposal fees because these are commonly omitted line items.

The supervisor verifies containment integrity, negative pressure readings, and decontamination unit function at the start of each shift and records them in the daily log.

Clean room to shower to equipment room is the exit sequence for workers; entry reverses the sequence, and no worker leaves the containment without showering when required by the project.

Daily logs record work area, date, personnel, tasks, monitoring results, pressure readings, and any deviations; these logs support the closeout package.

Clearance criteria commonly require visual inspection with no visible debris, then air samples below 0.01 f/cc by PCM (or 70 structures/mm2 by TEM where specified), analyzed by an accredited laboratory.

Aggressive sampling methods (leaf blower or fan) are used to disturb settled dust before clearance sampling in many protocols; the specific method is set by contract or regulation.

Stop work if negative pressure is lost, containment is breached, or monitoring exceeds the excursion limit; correct the condition, document it, and re-monitor before resuming.

Decontamination of workers includes HEPA vacuuming of PPE and disposable coveralls before entering the shower; wash water and filters are handled as contaminated waste.

Training and medical clearance records for each worker are verified before assignment; respirator fit testing is required annually and whenever a new respirator model is issued.

Scope documents should define the amount and location of ACM, work classification, containment type, clearance standard, and the abatement method for each building component.

The project budget includes abatement, monitoring, disposal, permitting, temporary relocation, and contingency; change orders commonly arise from concealed ACM found after demolition begins.

Critical-path sequencing: notification and permits, containment and negative air, abatement, visual inspection, air sampling, clearance, and demolition or renovation.

Independent third-party air monitoring and clearance is typically contracted separately from the abatement contractor to avoid a conflict of interest.

The project manager maintains the closeout package: manifests, waste receipts, daily logs, monitoring results, clearance reports, and training and certification records.

Regulatory triggers include NESHAP notification thresholds, OSHA exposure limits and regulated-area requirements, and state or local licensing and permit rules.

Scheduling must allow for laboratory turnaround on clearance samples; work cannot resume or demolition begin until clearance is achieved and documented.

Risk allocation in contracts should address unknown ACM, owner-furnished information, indemnification, insurance limits, and stop-work authority for the owner's representative.

PCM analysis counts all fibers longer than 5 micrometers with a length-to-width ratio of at least 3:1 and reports fibers per cubic centimeter; it does not identify asbestos type.

Phase contrast microscopy has a practical sensitivity around 0.005 to 0.01 f/cc depending on the volume of air sampled and the area of the filter counted.

TEM with energy-dispersive X-ray analysis identifies fiber type and is used for clearance, for distinguishing asbestos from other fibers, and for low-level work.

Sample volume equals flow rate multiplied by time; calibrate pumps with a primary standard before and after sampling and record the average of pre- and post-calibration.

NIOSH Method 7400 and 7402 govern PCM and TEM analysis respectively; laboratories should hold accreditation such as NVLAP or AIHA LAP.

Personal samples are collected in the breathing zone outside the respirator; area samples are placed to characterize containment, and blanks accompany each sample set.

Aggressive sampling uses forced air to suspend settled dust before sampling; the choice of method must match the contract or regulatory clearance protocol.

Chain of custody, sample identification, flow rates, times, and field notes must accompany samples to the laboratory; documentation errors invalidate results.

The project designer determines the abatement method, containment design, negative air capacity, decontamination unit layout, and worker protection level for each project.

Negative air machine sizing is based on enclosure volume and desired air changes per hour; typical targets are 4 to 12 air changes per hour depending on the work and specification.

Containment design includes critical barriers at openings, floor and wall coverings, sealed penetrations, and a decontamination unit with clean, shower, and equipment rooms.

Specifications should state the clearance standard, sampling method, analytical method, laboratory accreditation, and who performs clearance sampling.

The designer may need to specify a registered design professional for structural loads, and must coordinate with fire, electrical, and HVAC systems affected by the enclosure.

Design documents identify ACM by location and material type using inspection data; the designer does not substitute for the inspector's field determination.

Where local rules require it, abatement design is prepared by a certified or licensed project designer, and the design is submitted with the permit application.

Design should address waste staging, transport route, and disposal site so that containment and loading do not breach the regulated area.

Inspection identifies and quantifies ACM in a building; homogeneous areas are groups of materials that are similar in appearance, age, and function and can be sampled as a unit.

Bulk sampling requires a minimum number of samples per homogeneous area; the count depends on the material type and the protocol, commonly 3 for thermal system insulation and 2 to 3 for surfacing and miscellaneous material.

Samples are collected in a wet state, placed in sealed containers, labeled, and sent to an accredited laboratory using PLM (polarized light microscopy) per EPA Method 600/R-93/116.

PLM with dispersion staining identifies asbestos type and estimates percentage; point counting improves accuracy, and TEM or gravimetric methods may be used for verification.

The inspector records material location, condition (good, damaged, significantly damaged), accessibility, potential for disturbance, and quantity in linear or square feet.

An asbestos-containing material is generally defined as containing more than 1% asbestos by the applicable method; state definitions may differ and must be checked.

The inspection report documents sampling locations, laboratory results, material condition, and a drawing or floor plan showing ACM locations.

Inspector certification is state-issued; training typically includes a 3-day inspector course with an examination and periodic refresher.

The management plan ranks ACM by hazard using material condition, accessibility, potential for disturbance, and quantity, then selects response actions.

Response actions include operations and maintenance, repair, enclosure, encapsulation, and removal; removal is not automatically the preferred action.

An O&M program includes work practices, periodic surveillance, training for custodial staff, and a schedule for reinspection of ACM in good condition.

Reinspection intervals are typically every 6 months for damaged material and every 12 months for material in good condition, adjusted to local rules and building use.

The plan documents the inspection data, hazard assessment, response actions, schedule, budget estimates, and responsibilities for implementation.

The management planner coordinates with the project designer to translate prioritized actions into design documents and abatement specifications.

Records of surveillance, training, and abatement are retained in a building file and transferred to subsequent owners; disclosure obligations apply at sale or lease.

The plan must be updated when conditions change, when abatement is completed, or when new ACM is identified during renovation.