EWMA is a 100 percent employee-owned environmental consulting and remediation firm founded in 1987 and headquartered in Parsippany, New Jersey. Its technical staff of about 40 scientists, engineers and technicians provide real estate environmental due diligence, remediation of soil, groundwater and vapor contamination, indoor air quality and vapor intrusion work, and regulatory compliance support, including Licensed Site Remediation Professional services, UST closures and asbestos services.