Pond Liner Company - CLI Logo

About Us

Employees welding geomembranes
Certified Welding Technician - IAGIApproved Installation Contractor - IAGIAIC & CWT CERTIFIED
Colorado Lining Leadership

Mission Statement

To Offer Our Customers A Team That Makes The Difference
Colorado Lining’s strength in fulfilling its commitments to its customers comes from over 75 years of combined experience from our executive management team to our onsite crews of professional installers. Unique in the industry, Colorado Lining is proud of its team’s longevity for site supervisors who have been with the company for several years. Additionally, many team members began their careers working in our fabrication facility or as an apprentice working with our seasoned installers. This hands-on, quality education affords us the ability to continue to improve design, fabrication and installation processes for cost-effective and long lasting results for our customers.

Provide Unbeatable Expertise
Over the years our quality products and services have been called on for a variety of applications all over the world. Ever changing government requirements and environmental issues have led to the need for new and innovative containment solutions. Colorado Lining has become highly specialized in our field, with a sound understanding of the geomembrane industry, providing our customers with a consistent and expanding knowledge base, expert technical support and design information to ensure an economical, quality solution to all containment needs and challenges.

The Use of Quality Equipment & Tools
Colorado Lining offers rolled & palletized fabrication by utilizing welding techniques that include: hot air, wedge, adhesive & extrusion welding. We have a full fleet of trucks, trailers and heavy equipment allowing us the resources to complete turn-key projects.

Proactively Adhere to Trusted Standards in Safety & Workmanship For Any Industry
Colorado Lining is an IAGI Approved Installation Contractor and is dedicated to training and certifying our welding technicians through the Certified Welding Technician Program. Colorado Lining also adheres to MSHA, ISNetworld & PEC Premiere Standards. Our in house Quality Control programs for factory and field seam testing follow strict ASTM Standards that meet or exceed all industry standards.

Need more info? Contact us to learn more:

Your Partner for International Geosynthetics

Algae raceway lining
Algae raceways in Alvita, Japan

CLI's international projects include work in locations like Africa, Middle East, Europe, Central America, South America, Caribbean, Australia, Asia and more.

We have supplied and installed a wide variety of materials in all applications throughout the world. By utilizing factory fabricated products we control the quality and can save clients time and money in the field. Custom built floating covers delivered in assembled sections allows us the flexibility to work anywhere in the world with the same precision engineering and construction we offer in North America. We are open to partnerships with Installers, Contractors and Engineers to deliver the best in quality and innovation found anywhere in the world.

Tell us more about your international project:

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Email Us:
800 524 8672


"...CLI provided exemplary fabrication, installation and design assistance on the Wells Ranch West Pond project. CLI has exhibited superior knowledge of geosynthetics materials and fabrication as well as superior workmanship in challenging installation projects.

It has been my experience that CLI strives to employ highly skilled, conscientious, dedicated and above all professional technicians in their approach and execution of planned projects. CLI management was actively engaged and provided sound advice when needed; I would highly recommend CLI for any liner needs..."

Construction Manager
Energy Inspection Services

"...Colorado Lining International, Inc. (CLI) planned and executed the HDPE liner work without any major issues, ahead of schedule, on-budget, and with a perfect safety record for the job.

CLI worked with our QA technicians and engineers to ensure conformance with the specification, and they made cost effective suggestions for improvements on several of the pond appurtenant structures. In addition, CLI scheduled a “hand-off” meeting to our group to go over the procedures for testing and commissioning our new ponds. This is our first time working with CLI and we intend to utilize their services in the future..."

Facility Engineering Manager
Laramie Energy

"Colorado Lining International, Inc. has/is the critical component in making it possible for Tucson Water to address an emerging reservoir liner system replacement wit confidence and in a timely manner.

I am truly grateful for Rafael's (and is team's) experience, hard work and dedication to the Valley View Reservoir Project. Also for Bryant's expertise in my earlier efforts to steer away from further repairs."

Program Manager
Tucson Water Reservoir Rehabilitation

"...CLI has consistently performed above our expectations. CLI’s management team works very well behind the scenes. They will perform quantity takeoffs, prepare a schedule, order materials and have them delivered to the project in time for installation every time. CLI will mobilize additional equipment or crews required to meet the customer’s schedule. CLI will also work in difficult environmental conditions, which other liner companies refuse, to get the job done. CLI is a leader in their trade because they can maintain the schedule they provide. Their projects are typically completed ahead of schedule and all of their work meets the rigid quality assurance testing.

CLI cares for their customers and maintains strong working relationships. One of the lined ponds we recently completed was damaged after all crews had demobilized from the project. CLI remobilized to the project from several states away and repaired the damaged liner at no charge to the customer within 24-hours of discovering the damage. CLI stands behind their work, always.

When I have the choice to select a liner installation company, I choose Colorado Lining International..."

Energy Inspection Services

"...Colorado Lining International, Inc. has been one of our most valued Presto Geosystems® customers for many years. They have successfully installed thousands of square feet of the Geoweb® Cellular Confinement System in multiple projects over the last 12 months."

Business Development Manager
Presto Geosystems®

"Colorado Lining recently completed a lining system for a series of effluent channels on the Metro Northern Wastewater Treatment plant in Brighton Colorado. This was a complex piece of work and required planning and scheduling to get them built in the sequence we required. CLI stepped up and facilitated getting this done on time and within the pricing they gave us. They demonstrated professional input and provided a quality product and installation, they also communicated well and were very responsive to our demanding needs in getting this project done.

Another key piece of the puzzle was tying into the South Platte River through a spillway which was lined and rock armored so timing was critical, this also went very smoothly and limited our risk in damaging the ponds.

I have always considered CLI as a leader in the Geosynthetic field and would highly recommend them on any project that required liners..."

Project Engineer
CH2M Hill

"Colorado Lining International, Inc. has been one of our most valued customers for many years. They have fabricated and installed over one million square feet of our heavy duty K-Series Dura-Skrim® product over the last year. Colorado Lining International also fabricates and installs many of our other light weight reinforced and unreinfoced product lines."

Geomembrane Sales Specialist
Raven Industries

"I also wanted to pass along a big thank you. Nick and his co-worker were great and a pleasure to work with. They were able to patch things that I wasn’t sure was possible and even found some holes that I didn’t notice. The weather that day was less than perfect with intermittent rain and they just worked through it all and got the job done. I wish all the contractors I deal with worked so efficiently."

Arapahoe Basin Ski Area

Some of Our Valued Customers

CLI In The Community

Giving Back Locally & Around the World...

CLI believes strongly in supporting and giving back to communities and organizations with environmental, charitable and philanthropic causes. Our commitment to our employees,  non-profits and educational organizations is important to us and we operate with gratitude that we can contribute in such a manner.

Below are some photos of three remarkable organizations that we have worked with.

More projects we were honored to participate in...

Colorado Lining donated PVC materials for the organization's new aquaponics program, which will  provide a way to combat malnutrition and develop sustainable micro-business opportunities in trash dump communities. Trash Mountain Project helps develop  spiritual, physical, emotional, and educational needs for children and families living in trash dump   communities in the Dominican Republic, Philippines, Honduras & Cambodia. They   create strategic partnerships with indigenous leaders and organizations   to assess available resources and determine immediate and long-term operational needs.
Learn more about the organization.

Colorado Lining donated materials and installation supervision for the camp's winter ice-rink. The rink is used for recreational use during winter camps for Colorado youth. Camp   Elim's location in the heart of the Pike National Forest and offers a friendly, safe, and fun environment in which youth   and adults develop lasting friendships with other campers, and caring staff.
Learn more about the organization.

Colorado Lining donated geomembrane materials to the Praying Hand Ranch located in Parker, CO. The materials were  used for water features and small ponds on the ranch property, and some were installed by a local Boy Scout organization. Praying Hands Ranch is a Non-Sectarian Christian Organization committed to meeting the needs of   handicapped children, adults, troubled youth and disabled veterans in a   therapeutic ranch environment.
Learn more about the organization.