Environmental hazards and regulations

Recognize the hazard, then investigate

Environmental hazards can affect health, use, value, financing, and cleanup costs. Separate three questions: What may be present? What must be disclosed or investigated? What response or permission is required? A salesperson identifies warning signs, communicates known material facts, and recommends qualified help rather than diagnosing contamination.

Asbestos may occur in older insulation and building materials; disturbed, friable material can release inhalable fibers. Radon is a naturally occurring radioactive gas that can enter buildings from soil and requires testing to detect. Lead hazards can involve deteriorating paint and contaminated dust. Formaldehyde can be emitted by some manufactured building products. Moisture can support mold growth. Leaking fuel or chemical tanks can contaminate soil and groundwater. California also defines thirdhand smoke as toxic chemical residue left by tobacco smoke.

Disclosure is not a clean bill of health

California's environmental hazards booklet educates consumers about hazards, mitigation, and information resources. It does not replace property-specific investigation or disclosure of known material conditions. A booklet is educational; a property report addresses the particular site.

Federal lead disclosure rules apply to covered target housing, generally housing built before 1978, subject to exemptions. Before a purchaser or tenant becomes obligated, the seller or lessor provides the lead hazard pamphlet, discloses known lead paint or hazards, and supplies available evaluation reports. Purchasers receive a ten-day opportunity for a lead risk assessment or inspection unless the parties agree to a different period; a purchaser may waive that opportunity. Do not confuse that purchase inspection opportunity with a tenant's disclosure rights. The rule does not itself require sellers to test every property or remove all lead paint.

Investigate liability and development restrictions

A Phase I environmental site assessment generally reviews records, site history, interviews, and site conditions without routine sampling. A Phase II investigation uses targeted testing when warranted. Under CERCLA, the federal Superfund law, cleanup liability can reach current owners and certain past owners or operators even without proof that the current owner caused the contamination. Potential liability protections require specific conditions; merely buying without knowledge or ordering a report is insufficient. Appropriate inquiries occur before acquisition, and continuing responsibilities may follow.

Regulated underground tanks involve release detection, monitoring records, reporting, corrective action, proper closure, and financial responsibility. An unused tank is not necessarily properly closed. Filling federally regulated waters, including covered wetlands, may require a Clean Water Act permit; local zoning approval does not supply that federal permission.

The sequence is recognize, investigate and disclose, then choose the appropriate response. Testing, mitigation, cleanup, and permits serve different purposes. Have qualified environmental and legal professionals evaluate site-specific requirements and liability protections.