6.1 Property Conditions and Environmental Hazards

Property Conditions and Environmental Hazards

The national portion tests environmental hazards as risk and disclosure problems, not as engineering. You must know which hazard is present, how it is measured, what federal rule attaches to it, and what the licensee must do. The exam rewards candidates who separate a condition that must be disclosed from a condition that legally disqualifies a sale (almost none do).

Lead-based paint

Lead-based paint is the single most heavily tested environmental topic because it carries a specific federal disclosure law: the Residential Lead-Based Paint Hazard Reduction Act of 1992 (Title X), enforced through EPA/HUD rules. It applies to target housing, generally residential housing built before 1978, the year lead paint was banned for residential use.

Key required actions for a pre-1978 sale or lease:

• Give the buyer/tenant the EPA pamphlet "Protect Your Family From Lead in Your Home."
• Disclose any known lead-based paint and provide available records/reports.
• Include the Lead Warning Statement and a signed disclosure in the contract.
• Give purchasers a 10-day period to conduct a lead inspection/risk assessment (the period can be shortened or waived only by mutual written agreement).

Lead exemptions and traps

The disclosure does not apply to housing built in 1978 or later, housing certified lead-free, zero-bedroom dwellings (studios, lofts), short-term rentals of 100 days or fewer, and most housing for the elderly or disabled (unless a child under 6 resides there).

Trap: the law requires disclosure of known lead and giving the 10-day window — it does not require the seller to test for or remediate lead. A common wrong answer says the seller "must remove all lead-based paint before closing." That is false; disclosure and opportunity to inspect are the duties.

Worked example: the 10-day window

A buyer signs a contract on June 1 for a 1968 home. The lead disclosure gives a 10-day inspection period unless the parties agree otherwise.

• Default period: 10 calendar days, so the buyer may inspect through June 11.
• If the buyer wants only 5 days to keep an offer competitive, both parties may agree in writing to shorten it.
• If the seller refuses to allow any inspection, the seller has violated Title X regardless of how clean the home is.

Penalties for noncompliance can reach $10,000+ per violation plus treble (3×) damages in private suits — exam questions sometimes ask only that you recognize the violation, not the dollar figure.

Asbestos

Asbestos is a fibrous mineral used in insulation, floor tiles, pipe wrap, and roofing in older buildings. It is dangerous only when friable — crumbling or disturbed so fibers become airborne. Inhaled fibers are linked to asbestosis and mesothelioma.

Exam logic for asbestos:

• Intact, undisturbed asbestos is often safest left in place (encapsulation) rather than removed.
• Improper removal can increase risk by releasing fibers; remediation should use trained, licensed abatement contractors.
• The hazard is condition-based: presence alone does not make a property unsellable, but a known asbestos hazard is a material fact to disclose.

Trap: "all asbestos must be removed immediately" is wrong. Encapsulation or enclosure is frequently the recommended response for non-friable asbestos.

Radon

Radon is a colorless, odorless radioactive gas from the natural decay of uranium in soil and rock. It enters through foundation cracks, sump pits, and slab joints, and accumulates in lower levels and basements. It is the second-leading cause of lung cancer after smoking.

Radon is measured in picocuries per liter (pCi/L). The EPA action level is 4.0 pCi/L — at or above this reading, mitigation is recommended.

Worked example: reading the number

A buyer's radon test returns 6.2 pCi/L in the basement. Because 6.2 exceeds the 4.0 action level, mitigation is recommended. Typical mitigation is active sub-slab depressurization — a vent pipe and fan that draws soil gas out above the roofline — commonly costing roughly $800–$1,500. The exam point: 6.2 > 4.0, so the correct answer is "mitigation recommended," not "property uninhabitable."

Mold

Mold grows wherever moisture, organic material, and time combine — behind drywall, under flooring, around leaks. Health effects range from allergy symptoms to serious respiratory issues for sensitive individuals. The real estate exam treats mold as a moisture/condition issue: fixing mold without fixing the water source guarantees regrowth.

Licensee duties: disclose known mold, do not conceal it (painting over visible mold can be active concealment / fraud), and refer remediation to qualified professionals rather than offering medical or engineering opinions.

Wetlands

Wetlands are land saturated by surface or ground water enough to support vegetation adapted to wet soils — marshes, bogs, swamps. They are protected because they filter water and control flooding. Under the federal Clean Water Act, dredging or filling wetlands generally requires a permit from the U.S. Army Corps of Engineers.

Exam consequences: wetlands on a parcel can sharply limit buildable area, block filling or grading, and reduce value even though the buyer holds full title. Owning the land does not grant the right to develop a regulated wetland without a permit.