With facilities in New Mexico, California and Texas, Daniel B. Stephens & Associates, Inc. DBS&A provides comprehensive services in site investigation and remediation, groundwater and surface water hydrology, environmental litigation support, GIS, water resources development and planning, soil science, and environmental engineering. DBS&A is an environmental science and engineering consulting firm contributing to a vision of a better future by providing comprehensive services in groundwater and surface water hydrology, soil science, remediation, and civil and geotechnical engineering. The firm has expertise in the unsaturated layer known as the vadose zone, which plays a vital role in protecting or restoring groundwater quality. A specialized understanding of water and soil science amplifies the ability to provide expert litigation services and in-depth, comprehensive solutions for civil and environmental engineering applications.