North Dakota Environmental
Practice Questions & Answers (2026)
Environmental questions on the North Dakota exam cover both federal environmental laws and North Dakota-specific disclosure requirements. Federal topics include lead-based paint (pre-1978 housing), asbestos, radon, underground storage tanks, and CERCLA liability. North Dakota has additional state-level environmental disclosure requirements enforced by the North Dakota Real Estate Commission — including North Dakota-specific environmental conditions that affect property use and disclosure. Environmental questions trip up candidates who studied only federal law without reviewing the ND-specific overlay.
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North Dakota Environmental — Practice Questions & Answers
107 questions on Environmental from the North Dakota real estate question bank. First 10 are free — sign up to unlock all 107.
Q1. Radon is a naturally occurring radioactive gas that enters buildings primarily through:
Explanation
Radon is a naturally occurring radioactive gas that rises from soil and rock and enters buildings through cracks and openings in foundations. North Dakota has areas with elevated radon levels.
Q2. Lead-based paint disclosure is required for homes built:
Explanation
Federal law (Residential Lead-Based Paint Hazard Reduction Act) requires disclosure of known lead-based paint hazards in homes built before 1978, when lead paint was banned for residential use.
Q3. An underground storage tank (UST) on a property is a concern primarily because of potential:
Explanation
Leaking underground storage tanks (USTs) can cause significant soil and groundwater contamination from petroleum products. Cleanup costs can be substantial, making USTs a major environmental concern in real estate transactions.
Q4. Asbestos in a property is considered hazardous when it is:
Explanation
Asbestos becomes hazardous when it is friable — meaning it can be easily crumbled and releases fibers into the air. Intact, undisturbed asbestos may not pose an immediate health risk.
Q5. CERCLA (Superfund) legislation holds which parties liable for cleanup of contaminated sites?
Explanation
CERCLA (Comprehensive Environmental Response, Compensation, and Liability Act) imposes joint and several liability on current owners, past owners, generators of hazardous substances, and transporters — not just the current owner.
Q6. A Phase I environmental site assessment (ESA) involves:
Explanation
A Phase I ESA involves records review, site visits, and interviews to identify recognized environmental conditions (RECs) without physically sampling. If RECs are found, a Phase II ESA with sampling may be recommended.
Q7. Wetlands are regulated in real estate transactions primarily because they:
Explanation
Wetlands provide important ecological functions (flood control, water quality, habitat). Development in wetlands requires permits under Section 404 of the Clean Water Act. Improperly filling wetlands can result in severe penalties.
Q8. North Dakota's oil and gas production in the Bakken region can cause environmental concerns including:
Explanation
Oil and gas production in the Bakken can cause environmental concerns including soil and groundwater contamination from spills and leaks, brine disposal issues, and air quality impacts from flaring and equipment emissions.
Q9. When is a seller required to provide a lead-based paint disclosure and EPA pamphlet?
Explanation
The Residential Lead-Based Paint Hazard Reduction Act requires sellers and lessors of housing built before 1978 to provide a lead-based paint disclosure and the EPA pamphlet 'Protect Your Family from Lead in Your Home.'
Q10. Mold in a residential property is considered a material fact that must be disclosed because it can:
Explanation
Mold can cause serious health problems (respiratory issues, allergic reactions) and structural damage. It is a material defect that must be disclosed by sellers and agents who are aware of it.
Q11. A buyer in North Dakota asks about the proximity of the property to an oil and gas well. The agent should:
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