100+ Free EPA Lead Supervisor Practice Questions

The EPA Lead Abatement Supervisor certification is a federal credential required under 40 CFR 745 Subpart L for individuals who supervise lead abatement projects in pre-1978 residential housing (target housing) and child-occupied facilities. It requires 40 hours of EPA-accredited training (32 worker hours + 8 supervisor-specific hours), passing a knowledge assessment, and applying to EPA or an authorized state program. Certification lasts 3 years and requires an 8-hour refresher course to renew.

Under the 2021 EPA dust-lead hazard standard update (effective January 2022), post-abatement clearance standards are: floors = 40 μg/ft², interior window sills = 250 μg/ft², and window troughs = 400 μg/ft². These clearance levels must be confirmed by dust-wipe sampling collected and analyzed by a certified Lead Inspector or Risk Assessor who is independent from the abatement contractor. Re-occupancy is prohibited until all clearance standards are met.

Under 40 CFR 745.227(e)(6), the certified abatement firm or supervisor must notify EPA (or the authorized state) at least 5 business days before a lead abatement project begins. The notification must include the address of the property, the certification numbers of the firm and supervisor, the planned start and completion dates, and the abatement methods to be used. Emergency situations may qualify for shortened notice but must be documented.

The Occupant Protection Plan (OPP) is a required document prepared by the Lead Abatement Supervisor before abatement begins. It describes how building occupants will be protected during the project, including: whether residents will be relocated from the work area, how the regulated area will be established and maintained, occupant notification procedures, and re-occupancy criteria (clearance must be achieved before anyone returns). Children under 6 and pregnant women must be relocated from abated areas.

Under 40 CFR 745.227(h), general abatement project records (work plans, daily logs, occupant protection plans, notification records, waste disposal documentation) must be retained for 3 years after project completion. Clearance examination records (dust-wipe sampling results) have a longer retention period of 12 years under 40 CFR 745.227(e)(10). The property owner must receive the final abatement report and retain it as part of the building's lead records for disclosure to future purchasers and tenants.

Under OSHA 29 CFR 1926.62 (Lead in Construction Standard), the Permissible Exposure Limit (PEL) for lead is 50 μg/m³ as an 8-hour time-weighted average (TWA). The Action Level is 30 μg/m³ (8-hr TWA). When exposure exceeds the Action Level, employers must implement biological monitoring (blood lead level testing within 5 working days), periodic re-monitoring, and medical surveillance. When exposure exceeds the PEL, feasible engineering controls and additional respiratory protection are required.

Lead abatement waste (paint chips, HEPA vacuum contents, plastic sheeting, coveralls) must be characterized using the Toxicity Characteristic Leaching Procedure (TCLP) under 40 CFR Part 261. If the TCLP extract contains ≥5 mg/L of lead, the waste is classified as D008 RCRA hazardous waste and must be transported using a licensed hazardous waste transporter with a Uniform Hazardous Waste Manifest to a licensed TSDF. If TCLP shows <5 mg/L, the waste may be managed as non-hazardous solid waste at a permitted municipal landfill.