Group Delta Consultants has performed geotechnical investigations for a number of cities, water districts, and public agencies, including the Cities of Arcadia, Burbank, Costa Mesa, Long Beach, Riverside, and San Juan Capistrano, the County of San Diego, Los Angeles Department of Water and Power, Irvine Ranch Water District, and Moulton Niguel Water District. Many of these projects have been reviewed by the State of California Department of Water Resources, Division of Dam Safety.