Langan Eng & Environmental Services LLC

Langan is an engineering and environmental consulting firm headquartered in Parsippany, New Jersey, with a second New Jersey office in Princeton. Its environmental group handles site assessment, remedial design and cleanup, sediment work, human health and ecological risk assessment, and regulatory compliance and permitting. The firm's compliance team also covers storage tanks and SPCC plans, air permits, stormwater, industrial wastewater and waste programs. Clients include developers, property owners, corporations, institutions, public agencies and energy companies. Langan reports more than 50 years in practice.