Complex sentence: She is also chief executive of the Association of Drainage Authorities (ADA), representing organisations related to water level management and flood risk management, such as Internal Drainage Boards, flood defence committees, environmental agencies, local authorities and various associate members.
Split into simpler sentences: She is also chief executive of the Association of Drainage Authorities (ADA). As ADA chief executive Venables represents organisations related to water level management and flood risk management, such as Internal Drainage Boards, flood defence committees, environmental agencies, local authorities and various associate members.