Langan Engineering & Environmental Services, Inc

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Founded in 1970, Langan Engineering and Environmental Services is one of the leading geotechnical firms in the United States. It specializes in microbial investigation, environmental site assessment and remedial engineering design services. The company offers a variety of land surveying services, such as master plan mapping, construction monitoring, aerial ground control, residential surveying and deformation studies. Its clients include Atlantic Bank of New York, Robert Martin Company, Liberty Science Center, Witco Company and Universal Foods Corporation. The company also provides environmental compliance services, such as wastewater permitting, storage tank closure, facility compliance audits and industrial waste management. In addition, it offers sustainable development services, including air quality assessments, wildlife habitat evaluations, wetland mitigations and feasibility studies. Headquartered in Elmwood Park, N.J., the company has locations in Philadelphia, Warrington, Pa., and New Haven, Conn.