Montana Environmental
Practice Questions & Answers (2026)
Environmental questions on the Montana exam cover both federal environmental laws and Montana-specific disclosure requirements. Federal topics include lead-based paint (pre-1978 housing), asbestos, radon, underground storage tanks, and CERCLA liability. Montana has additional state-level environmental disclosure requirements enforced by the Montana Board of Realty Regulation — including Montana-specific environmental conditions that affect property use and disclosure. Environmental questions trip up candidates who studied only federal law without reviewing the MT-specific overlay.
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Montana Environmental — Practice Questions & Answers
113 questions on Environmental from the Montana real estate question bank. First 10 are free — sign up to unlock all 113.
Q1. Radon is a naturally occurring radioactive gas that enters buildings from:
Explanation
Radon is a colorless, odorless radioactive gas produced by the natural decay of uranium in soil, rock, and water. It can accumulate to dangerous levels in buildings, particularly basements.
Q2. Under Montana law, disclosure of known environmental hazards such as underground storage tanks is:
Explanation
Montana's Seller's Property Disclosure Act requires disclosure of known material facts that affect the property's value or desirability, including known environmental hazards like underground storage tanks.
Q3. Asbestos-containing materials (ACM) in older homes are most hazardous when they are:
Explanation
Asbestos poses health risks primarily when it is friable — easily crumbled — and releases microscopic fibers into the air that can be inhaled. Intact, non-friable asbestos poses less immediate risk.
Q4. CERCLA (Superfund) legislation holds which parties potentially liable for cleanup of contaminated sites?
Explanation
CERCLA imposes joint and several liability on potentially responsible parties (PRPs), which can include current and former property owners, operators, generators, and transporters of hazardous substances.
Q5. Lead-based paint disclosure is required for residential properties built before:
Explanation
Federal law (RRPA) requires disclosure of known lead-based paint hazards for residential properties built before 1978, when lead-based paint was banned for residential use.
Q6. A Phase I Environmental Site Assessment (ESA) is designed to:
Explanation
A Phase I ESA identifies recognized environmental conditions (RECs) through a review of records, interviews, and site inspection without collecting or testing physical samples. Sampling is done in a Phase II ESA.
Q7. Montana has significant agricultural activity. A property previously used as a cattle feedlot may have environmental concerns related to:
Explanation
Former agricultural operations like feedlots may contaminate soil and groundwater with animal waste, nitrates, pesticides, herbicides, or fuel storage. These are material environmental concerns requiring disclosure.
Q8. Wetlands in Montana are significant because they:
Explanation
Wetlands in Montana are protected under federal and state regulations (Clean Water Act Section 404). Development in or near wetlands typically requires permits and may be significantly restricted.
Q9. A property with a known underground storage tank (UST) leak should be:
Explanation
Known UST contamination is a material fact requiring disclosure under Montana law. The seller should disclose the condition, provide remediation documentation, and the parties should address liability and costs in the contract.
Q10. Mold in a property becomes a significant health concern and disclosure issue when:
Explanation
Visible mold growth or known moisture intrusion problems are material facts that must be disclosed in Montana. Mold can cause health issues and structural damage and is a significant concern for buyers.
Q11. The EPA's action level for radon in homes is:
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