ENCON’s Construction Materials Testing facilities are equipped to provide services in soils, concrete, masonry, asphalt, and aggregates. ENCON’s field  and laboratory technicians have the credentials and experience to meet our Client’s requirements for Quality Assurance or Quality Control Testing. Our Firm has been providing these services in the southwest since opening our doors in 1989. Over the years, we’ve maintained our proficiency by in-house training and by subscribing to two proficiency testing programs, namely, the AASHTO Materials Reference Laboratory (AMRL) and the Cement and Concrete Reference Laboratory (CCRL). National Calibration Services maintains our equipment calibration requirements on a yearly basis. For over twenty-five years ENCON has been qualified for federal government projects by the US Army’s Corps of Engineers, Materials Testing Center. Our extensive Quality Control Plan has been formalized as a comprehensive written document, which is available for review.