Dust-wipe clearance — proves the space is lead-safe.
After abatement or renovation, the only objective measure that a space is lead-safe is dust-wipe sampling against EPA thresholds. Envirex performs independent clearance — to current 2025 EPA reportable levels — on projects we did and projects we didn't.
What's in scope.
Below is the standard scope for an Envirex dust wipe clearance engagement. We size the project to the building — line-item, fixed-fee — and write the quote against this catalog.
Visual inspection.Pre-sampling walk-through to confirm dust-generating debris is cleaned, surfaces are visibly clean, and access is unobstructed.
ASTM E1792 wipe sampling.Standardized pre-moistened wipes used in a defined pattern over measured surface areas — floors, window sills, window troughs — with a fresh wipe per surface.
AIHA-LAP lab analysis.Samples sent under chain-of-custody to an AIHA-LAP accredited lab. Results expressed in µg/ft² against current EPA thresholds.
Current thresholds (post-Jan 2025).Floors 5 µg/ft², window sills 40 µg/ft², window troughs 100 µg/ft². Reports use these reportable levels as the pass / fail line.
Pass-fail report.Per-sample results, threshold comparison, photographs and sampling map. Failed clearance triggers re-cleaning at no charge on Envirex jobs.
Regulatory framework.
Every Envirex engagement is run against the regulator who will ultimately read the report. Here are the rules that shape dust wipe clearance work in New York.
EPA Dust-Lead Reportable Level (2024 update).Current thresholds: floors 5 µg/ft², sills 40 µg/ft², troughs 100 µg/ft². Effective Jan 2025.
ASTM E1792.Standard specification for wipe sampling materials for lead in surface dust.
HUD Protocol Clearance.Sampling locations and procedure per HUD Guidelines.
Independence required.EPA and NYS reinforce that clearance must be performed by an inspector independent of the contractor who performed the work.
Best suited for.
Post-abatement clearance, post-renovation verification, HPD violation closure, real-estate diligence after lead-disturbing work.
What you receive.
Clearance report in 3–5 business days from sampling. Lab data attached, sampling map included, pass/fail per location clearly stated.
Dust Wipe Clearance FAQ.
Quick answers for owners, agents and counsel scoping this work.
Can you clear a project performed by another contractor?
What happens if we fail?
Do the new EPA thresholds make clearance harder?
From our library.
A few short pieces from the Envirex library that go deeper on this topic.
Why dust-wipe clearance matters after renovation
Visible cleanup is not the same as lead-safe.
Read article Lead AbatementLead abatement certifications: who needs what, and the 2026 renewal cycle
Firm, supervisor, worker, inspector, project designer — five distinct EPA lead abatement credentials, with their own renewal calendars.
Read article Lead AbatementLead abatement: choosing encapsulation, replacement or removal
Three abatement methods, three different cost and longevity profiles.
Read articleReady to schedule an inspection or quote a project?
Tell us about your property and what you need. We'll return a clear, written quote — no obligation, no pressure.