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About Lemna

The Highest Levels of Performance, Ethics, Integrity and Professionalism

Recognized as the market leader in lagoon based process technology and cover systems, LET’s expertise encompasses all aspects of wastewater project development from conceptual design to final commissioning and ongoing customer support.

Our mission is to provide innovative and cost effective wastewater treatment solutions that enable municipal and industrial clients to protect water resources now and for the future.

We deliver on this mission through design expertise and a full product line that address the multiple needs municipalities, engineers and contractors have for wastewater treatment.

With over 40 years of experience, we have earned a solid reputation for superior customer service and the ability to provide economical solutions tailored to fit our client’s specific needs.

LET’s commitment to the advancement of lagoon wastewater technologies directly impacts the way we we do business and deliver solutions to our various clients.

“Lemna’s cover and staff have provided performance as promised. Anytime we’ve had questions related to technical support, LET has been prompt in their response. I can safely state that maintenance on our cover has been virtually non-existent, and I highly recommend LET for anyone considering them for a cover or liner.”

R. L. Minnesota
A man standing in front of a water treatment facility operation

Let’s Get Started

We are happy to help and look forward to hearing from you. Please contact us with any questions or inquiries.