Oregon Revised Statutes Public Health and Safety § 466.360

(a) Disposal sites exist on certain lots or parcels of real property within Oregon that may restrict future land development or constitute a potential hazard to the health, safety and welfare of Oregon's citizens, particularly if present or future owners use or modify the parcels without taking into consideration the use restrictions or environmental hazards posed by the former disposal activity.

(b) Permits, licenses and approvals that have been or may be granted by the Environmental Quality Commission, the Department of Environmental Quality or the Energy Facility Siting Council authorizing disposal of waste upon real property protect the health, safety and welfare of Oregon citizens only if adequate notice of post-closure use restrictions is given to future purchasers of the real property.

(c) Disposal sites created prior to regulation may be potentially hazardous if use restrictions are not imposed.

(d) Proper precautions and maintenance cannot be taken and continued unless the location of the disposal site, the nature and extent of its potential hazard and use restrictions are known to cities and counties and those who own and occupy the property.