Washington Environmental
Practice Questions & Answers (2026)
Environmental questions on the Washington exam cover both federal environmental laws and Washington-specific disclosure requirements. Federal topics include lead-based paint (pre-1978 housing), asbestos, radon, underground storage tanks, and CERCLA liability. Washington has additional state-level environmental disclosure requirements enforced by the Washington Department of Licensing — including Washington-specific environmental conditions that affect property use and disclosure. Environmental questions trip up candidates who studied only federal law without reviewing the WA-specific overlay.
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Washington Environmental — Practice Questions & Answers
117 questions on Environmental from the Washington real estate question bank. First 10 are free — sign up to unlock all 117.
Q1. The Washington State Environmental Policy Act (SEPA) requires environmental review for:
Explanation
SEPA requires state and local agencies to review proposed actions — including development projects — that may have a significant adverse environmental impact. A SEPA checklist is required for most development permits.
Q2. Lead-based paint disclosure is required in Washington for residential properties:
Explanation
Federal law (42 U.S.C. § 4852d) requires sellers and landlords of pre-1978 housing to disclose known lead-based paint hazards and provide buyers/renters with the EPA pamphlet 'Protect Your Family from Lead in Your Home.'
Q3. A Washington property owner discovers underground storage tanks (USTs) on their property. They should:
Explanation
Washington's Department of Ecology (DOE) regulates underground storage tanks. Property owners must report USTs to DOE and comply with regulations for removal, cleanup, and reporting of any contamination.
Q4. Radon is a concern in Washington real estate because:
Explanation
Radon is an odorless, colorless naturally occurring radioactive gas that can seep into buildings from the ground. Elevated radon levels are a health hazard linked to lung cancer. Washington has areas with elevated radon risk.
Q5. The Comprehensive Environmental Response, Compensation, and Liability Act (CERCLA/Superfund) makes current property owners potentially liable for:
Explanation
CERCLA imposes strict, joint, and several liability on current property owners for cleanup costs, even if the contamination was caused by prior owners. This is a major concern in commercial real estate due diligence.
Q6. Asbestos-containing materials (ACM) in Washington buildings constructed before 1980 present a hazard primarily when:
Explanation
Asbestos-containing materials pose the greatest health risk when they are friable — easily crumbled or disturbed — releasing microscopic fibers that can cause mesothelioma and other diseases when inhaled.
Q7. Washington's Department of Ecology regulates which of the following environmental programs?
Explanation
The Washington Department of Ecology (DOE/Ecology) oversees wetlands protection, hazardous waste cleanup (MTCA), water quality standards, and other environmental programs affecting real property.
Q8. The Model Toxics Control Act (MTCA) is Washington's equivalent of the federal CERCLA and primarily governs:
Explanation
Washington's Model Toxics Control Act (MTCA, RCW 70A.305) is the state's hazardous waste cleanup law, governing the investigation and remediation of contaminated sites similar to federal Superfund requirements.
Q9. A Washington seller's disclosure statement (Form 17) asks about which environmental issues?
Explanation
Washington's Form 17 (Seller Disclosure Statement) requires sellers to disclose knowledge of environmental issues including hazardous waste, underground storage tanks, soil settling/slippage, and other conditions on or near the property.
Q10. Wetlands on a Washington property are significant because:
Explanation
Wetlands in Washington are regulated under federal law (Section 404 of the Clean Water Act) and state law (Shoreline Management Act, Growth Management Act). Development in or near wetlands typically requires permits and may face restrictions.
Q11. A Phase I Environmental Site Assessment (ESA) in Washington is designed to:
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