ESE conducted Phase I ESAs for a governmental agency on a portfolio of properties associated with the Little Cypress Creek watershed. Phase I ESAs were conducted in accordance with ASTM E1527-13 standard for approximately 13 separate tracts of land and watershed segments over a four-year period. The portfolio of Phase I ESAs consisted of a total of approximately 2,500-acres and included tracts of land ranging from 8-acres to 600-acres as well as watershed segments ranging in length from 500-feet to 7,000-feet. The properties assessed included areas proposed for channel improvements, detention basins, county parks and regional drainage improvements. The Phase I ESAs included user and owner/occupant questionnaires and review of site history records, regulatory database reports, physical setting sources, county appraisal district information, city directory information, county pollution control and emergency response documents, and regulatory file review documents pulled from TCEQ central records. ESE conducted site inspections of the subject properties to assess and identify any conditions meeting the ASTM definition of RECs. RECs identified by ESE were discussed with the governmental agency personnel and recommendations were made to the scope and projected cost of further investigations needed.