Lean Environment is a full-service environmental / engineering firm that offers innovative technical and compliance assistance to business. Our company is built on the foundation of an environmental services provider, but we view clients needs more broadly. LEI provides comprehensive technical and management solutions to help companies achieve their long-term business goals. A registered Engineering Corporation in Washington State, LEI engineers and scientists combine for over a century of chemical, civil, mechanical and environmental engineering experience. We pride ourselves on solving the most difficult technnical problems, often in surprisingly simple and innovative ways. Lean Environment is the developer of the ENPURION(TM) stormwater treatment technology, shown to consistently meet the most stringent stormwater compliance limits anywhere.LEI also developed the Blue Nile Precious Metal Recovery System, advanced ion-exchange applications and OxySafe(TM) cyanide destruction processes, among others. LEI expertise includes chemical and process engineering, compliance, Environmental Management System (EMS) design and deployment, zero-discharge manufacturing systems, professional engineering services, ISO 14001 systems and audits, process engineering and process design, and process control with six-sigma quality programs. Lean Environment serve clients locally, nationally and internationally with an emphasis on their business cycle from start to finish.