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DN Tanks

We are the leader in the concrete tank industry, specializing in Water, Wastewater, and Thermal Energy Storage (TES) tanks. Because our tanks are prestressed concrete, they are built watertight and maintenance-free, and can be partially or fully buried underground. We have been designing and building Thermal Energy Storage tanks for almost 40 years, and every one of our TES tanks are still in service today.

Our concrete Thermal Energy Storage (TES) tanks are custom designed and built for each application. Because our tanks are prestressed concrete, they are built water watertight and maintenance-free, and can be partially or fully buried underground.

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