A Phase I Environmental Site Assessment (Phase I ESA) is performed to qualify for landowner liability protection. AES performs Phase I ESA's in accordance with the ASTM International Designation E 1527-13 and Standards and Practices for All Appropriate Inquires (AAI), Final Rule published in 40 CFR Part 312. AES personnel have conducted in excess of 1,000 ESA's throughout the southeastern United States. In order to acquire an understanding of a site's environmental condition, we offer the following services: