Middle School Summer Renovation: What Belongs in the Inspection Report
A licensed inspector is retained by a school district to inspect a 1965 middle school before a summer renovation. The scope includes replacing 2,400 square feet of 12-inch by 12-inch vinyl asbestos floor tile and its black mastic, removing 180 linear feet of pipe elbow insulation in a mechanical chase, and installing new lights above a suspended ceiling. The district's project manager says the floor tile is 'non-friable, so we don't need to sample the mastic' and plans to have maintenance staff dry-scrape the mastic after the tile is popped. The inspector also notices loose vermiculite insulation in the attic, which is outside the renovation footprint but above a corridor where workers will run conduit. No previous inspection report exists. The district wants the report to list only the tile and pipe insulation so the project can be bid as a small job.
1. The project manager wants to omit the mastic and attic vermiculite. How should the inspector define homogeneous areas and decide what is sampled, assumed, or outside the scope?
Read the worked answer
The inspector should first group suspect materials by homogeneous area: same material, color, texture, and approximate installation date. The 12-inch floor tile and the black mastic are generally separate homogeneous areas because they are different products, even though they were installed together. The mastic is a suspect material. 'Non-friable' describes physical condition, not asbestos content; it does not eliminate the need to sample or assume the material. If the district refuses sampling, the report must identify the mastic as assumed asbestos-containing material (ACM). The attic vermiculite is also suspect. If the conduit work will disturb it, it is inside the regulated scope and must be assessed or assumed ACM. If it will remain undisturbed, the inspector should still document it as assumed ACM and recommend an operations and maintenance plan, because the report cannot be narrowed just to make the bid look small. Omitting known suspect material would make the inspection incomplete and could mislead the contractor and IDEM.
2. The district plans to have maintenance staff dry-scrape the mastic after the tile is popped. Is this a regulated renovation, and what work-practice and licensing requirements apply?
Read the worked answer
Yes. The floor tile alone is 2,400 square feet, well above the NESHAP renovation threshold of 160 square feet on facility components, so the project is a regulated renovation. The mastic also matters: dry scraping, sanding, or abrading a Category I non-friable material can make it friable and regulated. Work must be done by an Indiana-licensed asbestos contractor using licensed supervisors and workers. The contractor should use wet methods, HEPA vacuuming, critical barriers, and negative pressure where required, and must prevent visible emissions. Dry scraping is not an acceptable removal method for regulated ACM because it generates dust. The district cannot avoid the rule by calling the work 'maintenance' or by splitting the tile and mastic into separate small jobs. The inspector should state the regulated quantities and require a proper abatement scope, notification, and waste handling before the renovation proceeds.