A Phase I Environmental Site Assessment (ESA) identifies Recognized Environmental Conditions (RECs), which are the presence or likely presence of hazardous substances or petroleum products on the target or neighboring properties. Required by some lenders and recommended as good practice, it helps buyers understand potential issues before purchasing.
If completed prior to purchase, any identified conditions are considered pre-existing, relieving the buyer of cleanup liability under CERCLA.
A Phase I ESA typically takes 3-4 weeks, primarily for research, and results in a report with findings and recommendations. In some cases—particularly for SBA-backed loans—lenders may begin with a limited due diligence investigation such as a Records Search with Risk Assessment (RSRA) or Transaction Screen.
