In 1993, Stefan Stamoulis a Principal Hydrogeologist had a vision – to create a company based upon quality service. With over twenty years experience in groundwater issues and contaminant delineation he firmly believed that quality service, product and work ethic would ensure success.  Hydrogeologic/Environmental Testing was founded based upon these ideals.  Through controlled growth, careful cultivation of H/ET staff and a clearly defined company philosophy, H/ET has accomplished and maintained these goals. 

Currently, H/ET enjoys a major market share within the solid waste industry in the Houston area.  As H/ET ventures into other market segments the goal remains the same.  The dedicated team of Professional Geologists, Field Geologists, Field Service Personnel and Administrative Staff are synchronized to generate quality product and services that ensures total customer satisfaction.

Mr. Stamoulis and his staff also share in a belief that it is important to give back to the community.  Different employees pursue various altruistic activities, such as the Susan G. Komen Breast Cancer Foundation, the National Humane Society and the Animal Shelter and Adoption of Galveston Island, Texas.

Mr. Stamoulis sits on the Board of the Moody Endowment of Galveston, Texas.  The Endowment was established to support the research of brain injury rehabilitation.  Mr. Stamoulis is on the Board of the Transitional Learning Center of Galveston, Texas.  The Transitional Learning Center was established for the purpose of providing post acute-traumatic brain injury rehabilitation.  He is also a member of the Transitional Learning Center Institutional Review Board of Galveston, Texas, which is responsible for examining the procedural aspects, design and ethical implications of research and protection of human rights.  Lastly, Mr. Stamoulis is a community Board Member of the Institutional Review Board office of Research Services at the University of Texas, Medical Branch in Galveston, Texas.