Owner’s “No ACM” Survey Before a 1970s High-Rise Renovation
A general contractor is renovating eight floors of a 1974 office building. The owner provides a 2019 asbestos survey by a consultant who is not accredited in the state: 12 bulk samples were collected, all reported below 1 percent, and the conclusion is “no ACM.” The contractor’s crew is scheduled Monday to remove 4,000 square feet of 12-by-12 floor tile and mastic, 300 linear feet of HVAC duct seam tape, and 150 square feet of drywall joint compound. No NESHAP notification has been filed because the owner says the building has no asbestos. The superintendent notices that the tile matches a 1974 pattern and that the duct tape has a woven canvas backing. The state requires accredited inspectors and a 10-working-day notification for regulated asbestos work. The owner is pressing to keep the schedule and says the contractor should “just proceed and let the abatement contractor deal with it later if anything shows up.”
1. Can the general contractor rely on the owner’s 2019 survey? What must happen before renovation begins?
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The contractor should not rely on the report as written. Twelve samples across eight floors is unlikely to characterize each homogeneous area, and the report does not show that floor tile, mastic, duct seam tape, and joint compound were sampled as separate materials. The state’s accreditation requirement is also unmet. More importantly, the general contractor has its own duty under 29 CFR 1926.1101(k) to determine the presence, location, and quantity of asbestos-containing material before work begins; if it cannot determine this, it must treat the material as asbestos-containing. Thermal-system insulation and surfacing material are presumed ACM unless sampled, and the suspicious floor tile and canvas duct tape are not exonerated by a report that may be inadequate. The contractor should stop work, give the owner written notice, secure the areas against disturbance, and retain a properly accredited inspector to sample each homogeneous area and mastic separately. Until results are available, the materials should be treated as presumed asbestos-containing.
2. If the materials are ACM, what NESHAP and state obligations apply, and what are the threshold quantities?
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Under 40 CFR Part 61, Subpart M, the owner or operator must notify EPA or the delegated state before a renovation if the project involves threshold quantities of regulated asbestos-containing material: 260 linear feet on pipes, 160 square feet on other components, or 35 cubic feet off facility components. Here, 4,000 square feet of floor tile and 150 square feet of joint compound would exceed the 160-square-foot threshold if ACM, and 300 linear feet of duct tape would exceed the 260-linear-foot threshold. The state’s 10-working-day notice adds a separate deadline. Because the crew is scheduled for Monday, the project cannot lawfully start on that schedule if ACM is present. The NESHAP notification duty rests on the owner/operator, but the contractor should not proceed until the owner has made the required determination and filed any required notice. The contractor should also confirm waste-handling and landfill requirements before demolition begins.
3. What immediate actions and documentation should the contractor take, including communication with the owner and crew?
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The contractor should issue a written stop-work order for the affected areas, preserve the survey and all correspondence, photograph the suspect materials, and prevent the crew from disturbing them. It should send the owner a letter explaining the regulatory basis, the sampling deficiencies, the schedule impact, and the need for an accredited inspection and any NESHAP notification. The crew should be briefed not to remove or damage the tile, tape, or joint compound and to report any disturbance. If ACM is confirmed, the contractor should obtain a written abatement plan from a licensed abatement contractor, revise the schedule, and require respiratory protection and medical surveillance for any employees who may be exposed. All sampling results, notices, and changed conditions should be retained in the project file. Proceeding on the owner’s assurance would expose the contractor to citation, delay, and liability for uncontrolled disturbance.