In operation since 1994, HydroSystems Inc. is one of the leaders in hydrogeology, serving the Southwest. Based in Phoenix, Ariz., it is a full-service consulting firm that specializes in groundwater recharge, water resources, permitting and other hydro geologic applications. It supports developers, municipalities, water companies, engineers, government agencies and Indian communities in developing new water supplies and expanding existing water supplies. The company's groundwater services include aquifer characterization, surface geologic mapping and analysis, operation and maintenance manual training, well assessment, injection soil boring, drilling, water resource management, well construction, well testing, well rehabilitation and selection.