The Phase One Group

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Our goal is to provide quality, timely and competitively-priced Phase 1 ESA Reports for real estate transactions throughout the vast Southern California region, as we exclusively complete Phase 1 ESA Reports. We exclusively complete Phase 1 ESA Reports which adhere to the standards for environmental assessments published by the American Society for Testing and Materials (ASTM) Designation: E1527-21 “Standard Practice for Environmental Site Assessments: Phase 1 Environmental Site Assessment Process” (ASTM E1527-21).