A useful survey is written for the project, not filed away. Before removal is scheduled it should settle the following.
Quantities and notification tiers
Positive results need measurements, because the numbers set the paperwork. PSCAA’s thresholds are 10 linear feet of friable pipe insulation and 48 square feet of other friable material per structure per calendar year; above them a notification is filed before removal, and larger jobs carry a 10-day wait. Washington L&I separately requires notice before asbestos projects over 48 square feet or 10 linear feet.
Old reports and changed plans
A survey covers only the materials and areas it describes. An older report still helps when what it sampled matches today’s work, but a project that grows, say a kitchen that now loses a wall or a second floor layer, needs the new materials surveyed. If material the survey missed turns up mid-job, PSCAA can waive its waiting period, but the notice is still filed.
Presumed asbestos
Not every suspect material has to be sampled. Under PSCAA’s rules a material can be presumed to contain asbestos and handled that way without an inspector’s evaluation, which can make sense when removal is planned anyway. Proving a material is not asbestos is the step that takes an AHERA inspector, except in an owner-occupied single-family remodel.