Phase 1 ESA projects are performed to meet or exceed current American Society of Testing Materials (ASTM), E1527-13 Standards and are compliant with the EPA All Appropriate Inquiry (AAI) that provides protection under innocent landowner defense. ERAS also conducts Environmental Transaction Screen (ETS) projects for clients that may require a lesser level due diligence. ERAS has conducted an average of approximately 200 ESA and ETS projects per year over the past 15 years throughout Central California.